ROPE CLAW AND METHOD FOR HANDLING A ROPE CLAW

专利摘要:
rope claw. the present invention relates to a rope grab for a vertical fall protection system. the rope claw includes a housing with an elongated member passage. the elongated member passage is configured to receive an elongated member. a locking cam is hingedly coupled to the housing and selectively engages an elongated member received at the elongated member passage. a cam inducing member positioned to provide a relatively light inductive force on the locking cam in a direction towards an elongated member received at the elongated member passage. a locking arm, hingedly coupled to the housing, has a first end that is configured to be attached to a user's safety harness and a second end that selectively engages the locking cam to lock the locking cam in an elongated limb in the passage of an elongated limb during a fall event.
公开号:BR112015001131B1
申请号:R112015001131-4
申请日:2013-07-17
公开日:2021-03-23
发明作者:Scott C. Casebolt；John P. Blomberg；Rick G. Miller
申请人:D B Industries, Llc；
IPC主号:

专利说明:

[0001] [001] Regularizations typically require workers who work at high places to wear a safety harness that is attached to a support structure, so that if a fall event occurs, the fall is limited, thereby reducing the chances of injuries to the worker. Systems that protect workers during fall events that can occur under climbing or descending on structures, such as stairs and the like, can be challenging due to the worker's varying vertical locations in relation to a support structure.
[0002] [002] For reasons indicated above and for other reasons indicated below, which will become evident to those elements versed in the technique under the reading and understanding of this specification, there is a need in the art for an effective and efficient rope grab system which includes a rope claw and an elongated member placed generally upright which is used as a support structure. SUMMARY OF THE INVENTION
[0003] [003] The problems mentioned above of current systems are addressed by the modalities of the present invention and will be understood through reading and studying the following specification. The following summary is given by way of example and not by way of limitation. It is provided only to assist the reader in understanding some of the aspects of the invention.
[0004] [004] In one mode, a rope claw is provided. The rope claw includes a housing, a locking cam, a cam inducing member and a locking arm. The housing has an elongated member guide that forms an elongated member passage. The elongated member passage is configured and arranged to receive an elongated member. The locking cam is hingedly coupled to the housing. The locking cam is configured and arranged to selectively engage an elongated member received at the elongated member passage. The cam inducing member is positioned to provide a relatively light inductive force on the locking cam towards an elongated member received at the elongated member passage. The locking arm is articulated to the housing. The locking arm has a first end that is configured and arranged to be attached to a user's safety harness and a second end that is configured and arranged to selectively engage the locking cam to lock the locking cam in a elongated limb in the passage of elongated limb during a fall event.
[0005] [005] In another modality, another rope claw is provided. The rope claw of this modality includes a housing, a locking cam and a locking arm. The housing has an elongated member guide that forms an elongated member passage. The elongated member passage is configured and arranged to receive an elongated member. The locking cam is hingedly coupled to the housing. The locking cam is configured and arranged to selectively engage an elongated member received at the elongated member passage. The locking cam has a radial edge that is configured and arranged to engage the elongated member. The radial edge that has a curvature that varies in relation to a pivot connection to the housing, so that the radial edge engages each elongated member at a contact angle that is the same even when elongated members of different diameter are received at the member passage elongated housing. The locking arm is articulated to the housing. The locking arm has a first end that is configured and arranged to be attached to a user's safety harness and a second end that is configured and arranged to selectively engage the locking cam to lock the locking cam in a elongated limb during a fall event.
[0006] [006] In another mode, another rope grab system is provided. The rope grab system includes at least one bypass holder and a rope grab. The at least one bypass support is configured and arranged to couple an elongated member to a support structure. The rope claw includes a housing, a locking cam and a cam spring. The housing has an elongated member guide that forms an elongated member passage. The elongated member passage is configured and arranged to pass an elongated member and a part of at least one bypass support therethrough. The locking cam is hingedly coupled to the housing. The locking cam is configured and arranged to selectively engage one of the elongated member and the part of at least one bypass support. The cam spring is coupled between the housing and the locking cam to provide a relatively light inductive force on the locking cam towards the elongated member and the part of at least one support received in the elongated member passage. The relatively light inductive force is prevented by gravity during normal rope grab operations.
[0007] [007] In yet another additional modality, a method for manipulating a rope claw is provided. The method includes rotating a lever rotationally coupled to a housing to release a rotating side plate with a user's hand; pulling back one end of the rotating side plate to pivot a part of the rotating side plate away from a side opening to an elongated member passage formed in the housing with the user's hand; positioning the rope claw to receive an elongated member within the elongated member passage of the housing with the user's hand; and releasing the pivoting side plate to allow the pivoting side plate to cover the side opening at least partially until the elongated member passes through the housing to retain the elongated member with the elongated member passage. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] [008] The present invention can be more easily understood and the advantages and additional uses of it will be more readily evident, when considered in view of the detailed description and the following figures, in which:
[0009] [009] Figure 1 is a side perspective view of a rope claw, according to an embodiment of the present invention;
[0010] [010] Figure 2 is a disassembled view of the rope claw in Figure 1;
[0011] [011] Figure 3A is a first side view of a rope grab housing of Figure 1, according to an embodiment of the present invention;
[0012] [012] Figure 3B is a front cross-sectional view of the housing along line 3B-3B of Figure 3A;
[0013] [013] Figure 3C is a second side view of a rope grab housing in Figure 1;
[0014] [014] Figure 3D is a top view of the rope claw housing in Figure 1;
[0015] [015] Figure 4A is a side view of a fixed side plate, according to an embodiment of the rope claw of Figure 1;
[0016] [016] Figure 4B is a front view of the fixed side plate of Figure 4A;
[0017] [017] Figure 5A is a side view of a rotating side plate, according to a type of rope claw in Figure 1;
[0018] [018] Figure 5B is a front view of the rotating side plate of Figure 5A;
[0019] [019] Figure 6A is a side perspective view of an arm spring, according to an embodiment of the rope claw of Figure 1;
[0020] [020] Figure 6B is a side view of the arm spring of Figure 6A;
[0021] [021] Figure 6C is a top view of the arm spring of Figure 6A;
[0022] [022] Figure 7A is a side perspective view of a spring spacer, according to an embodiment of the rope claw of Figure 1;
[0023] [023] Figure 7B is a side view of the spring spacer in Figure 7A;
[0024] [024] Figure 7C is a front cross-sectional view of the spring spacer along line 7C-7C of Figure 7B;
[0025] [025] Figure 8A is a side perspective view of a first lever, according to an embodiment of the rope claw of Figure 1;
[0026] [026] Figure 8B is a front view of the first lever in Figure 8A;
[0027] [027] Figure 9A is a side perspective view of a locking member, according to an embodiment of the rope claw of Figure 1;
[0028] [028] Figure 9B is a first side view of the locking member of Figure 9A;
[0029] [029] Figure 9C is a second side view of the locking member of Figure 9A;
[0030] [030] Figure 10A is a side view of a locking arm, according to an embodiment of the rope claw of Figure 1 with the rotating side plate in a locked position;
[0031] [031] Figure 10B is a side view of the locking arm of Figure 10A with the rotating side plate in an unlocked position;
[0032] [032] Figure 11A is a side perspective view of a locking cam, according to a rope grab embodiment of Figure 1;
[0033] [033] Figure 11B is another side perspective view of the locking cam of Figure 11A;
[0034] [034] Figure 11C is a side view of the locking cam of Figure 11A;
[0035] [035] Figure 11D is a second side view of the locking cam of Figure 11A;
[0036] [036] Figure 11E is a front view of the locking cam of Figure 11A;
[0037] [037] Figure 12A is a cross-sectional side view of a partial rope claw of Figure 1 engaging a first elongated member of a first diameter;
[0038] [038] Figure 12B is another cross-sectional side view of a partial rope claw of Figure 1 engaging a second elongated member of a second diameter;
[0039] [039] Figure 13A is a partial side view of a locking cam, according to an embodiment;
[0040] [040] Figure 13B is an approach view of part of a profile of a radial edge of the locking cam of Figure 13A;
[0041] [041] Figure 14A is a side perspective view of an assembled diversion support, according to an embodiment of the present invention;
[0042] [042] Figure 14B is a side view of the deviation support of Figure 14A;
[0043] [043] Figure 15A is a side perspective view of a diversion support, according to an embodiment of the present invention, coupled to a support structure and a rope claw;
[0044] [044] Figure 15B is a side perspective view of the diversion support of Figure 15A;
[0045] [045] Figure 15C is a top view of the diversion support of Figure 15A coupled to the support structure;
[0046] [046] Figure 16A is a first side perspective view of a rope claw, according to another embodiment of the present invention;
[0047] [047] Figure 16B is a second side perspective view of the rope claw of Figure 16A;
[0048] [048] Figure 16C is a rear perspective view of the rope grip of Figure 16A;
[0049] [049] Figure 17 is a disassembled side view of the rope grip of Figure 16A;
[0050] [050] Figure 18A is a side view of a rope grab locking arm of Figure 16A with a rotating side plate in a locked position;
[0051] [051] Figure 18B is a side view of the rope grab locking arm of Figure 16A with the rotating side plate in an unlocked position;
[0052] [052] Figure 19A is a cross-sectional side view of a partial rope claw of Figure 16A engaging a first elongated member of a first diameter;
[0053] [053] Figure 19B is another cross-sectional side view of a partial rope claw of Figure 16A engaging a second elongated member of a second diameter;
[0054] [054] Figure 20A is a first side perspective view of a rope claw, in accordance with yet another embodiment of the present invention;
[0055] [055] Figure 20B is a second side perspective view of the rope claw of Figure 20A;
[0056] [056] Figure 21 is a disassembled side view of the rope clamp of Figure 20A;
[0057] [057] Figure 22A is a side view of a rope clamp locking arm of Figure 20A with a rotating side plate in a locked position;
[0058] [058] Figure 22B is a side view of the rope grab locking arm of Figure 20A with the rotating side plate in an unlocked position;
[0059] [059] Figure 23A is a cross-sectional side view of a partial rope claw of Figure 20A engaging a first elongated member of a first diameter; and
[0060] [060] Figure 23B is another cross-sectional side view of a partial rope claw of Figure 20A engaging a second elongated member of a second diameter.
[0061] [061] According to common practice, the various features described are not designed to scale, but are designed to emphasize specific features relevant to the present invention. Reference characters denote similar elements throughout figures and text. DETAILED DESCRIPTION
[0062] [062] In the following detailed description, reference is made to the attached drawings, which form part of it, and in which the specific modalities in which inventions can be practiced are shown, by way of illustration. These modalities are described in sufficient detail to enable those skilled in the art to practice the invention, and it should be understood that other modalities can be used and what changes can be made without departing from the spirit and scope of the present invention. The following detailed description should therefore not be taken in a limiting sense, and the scope of the present invention is defined only by the claims and equivalents thereof.
[0063] [063] The modalities of the present invention provide a rope claw (cable claw) used for fall protection that can be easily manipulated with one hand to secure and detach the rope claw from an elongated member, such as a rope, cable , or the like, used as a support structure. The modalities of the rope clamps 100, 1000 and 2000 described in this document are designed to be attached to a safety harness used by a user and to lock onto an elongated member during a fall event, to limit the fall of the user. One embodiment of the rope claw 100 is illustrated in the side perspective view of Figure 1 and the exploded view of the rope claw 100 in Figure 2. The rope claw 100 includes a housing 200, a locking cam 300, a locking arm 400, a swiveling side plate 500 and a fixed side plate 600. The locking cam 300, the locking arm 400 and the rotating side plate 500 are hingedly coupled to the housing 200, as further discussed below. The elements of the rope grab 100 are first described and then the construction and operation of the rope grab 100 are described.
[0064] [064] The housing 200 of the rope grab 100 is further illustrated in Figures 3A to 3D. The housing 200 includes a body 202 that has a first side 303a and a second side 303b. The body 202 additionally has an upper end 202a and an opposite lower end 202b. Next to the upper end 202a of the body 200, an upper end wall part 201a is positioned which generally extends perpendicularly from the first side 303a of the body 202. Next to the lower end 202b of the body 202, a lower end wall part is positioned 201b which generally extends perpendicularly from the first side 303a of the body 202. The body 202 additionally has a first side edge 202c and a second opposite side edge 202d. Next to the first side edge 202c of the housing 200 is a cable guide 231 that extends from the first side 303a of the body 202 generally in a C shape. The cable guide 231 forms a cable guide passage 230 (or passage elongated limb) extending from near the upper end 202a to the lower end 202b of the body 202. Near the lower end 202b of the body 202 of the housing 200 and near the first side 202c of the body 202 of the housing 200, a position is positioned lower cylinder rivet passage 240 passing through the body 202. Furthermore, a central column 204 extends generally perpendicularly from the first side 303a of the body 202. The central column 204 is generally located in an intermediate part between the upper end 202a and the lower end 202b of the body 202 towards the second side edge 202d of the body 202 of the housing 200. The central column 204 includes a first central column part 20 4a, a second central column part 204b and a third central column part 204c. The first central column part extends from the first side 303a of the body 202. The second central column part 204b extends from the first central column part 204a and has a diameter that is less than a diameter of the first part of central column 204a. The third central column part 204c extends from the second central column part 204b and has a diameter that is less than the diameter of the second central column part 204b. A central column passage 206 passes through the central column 204. Surrounding the central column 204 is a cam spring retaining channel 218 which is formed on the first side 303a of the body 202. The cam retaining channel 218 includes a circular portion 218a and an extended leg portion 218b. In the embodiment shown, the leg portion 218b ends at a spring retaining opening 218c.
[0065] [065] A lever passage 212 passes through the body 202 of the housing 200 near the second side edge 202d and towards the lower end 202b of the body 202. The lever passage 212 is additionally positioned near the central column 204. The passage of lever 212 includes a circular portion 212a and an extended portion 212b extending from circular portion 212a towards the lower end 202b of body 202 of housing 200. Next to lever passage 212 is a side wall portion 214 extending generally perpendicular from the first side 303a of the body 202 of the housing 200. The side wall part 214 is still generally positioned between the central column 204 and the lever passage 212. Next to the side wall part 214 is an intermediate wall part 216 which also generally extends perpendicularly from the first side 303a of the body 202 of the housing 200. The intermediate wall part 216 is also positioned p close to lever passage 212. Additionally, a raised part 215 extends from the first side 303a of the body 202 of the housing 200. The raised part 215 extends from the first side 303a of the body 202 around the lever passage 212 The height of the raised part 215 is less than a height of the side wall part 214 and a height of the intermediate wall part 216. The housing 200 additionally includes a lower column 208 which is positioned near the lower end 202b of the body 202 housing 200. The lower column 208 extends from the first side 303a of the body 202 and includes a central lower column passage 210. In particular, the lower column 208 includes a first lower column part 208a extending from the first side 303a of body 202 and a second lower column part 208b extending from the first lower column part 208a. The second lower column part 208b has a diameter that is less than a diameter of the first lower column part 208a. The housing 200 also has an upper column 221 that extends from the first side 303a of the body 202. The upper column 221 is positioned close to the upper end 202a of the body 202 and includes an upper column passage 220. As shown in Figure 3C , a lever spring retaining channel 211 is formed on the second side 303b of the body 202 of the housing 200 around a part of the lever passage 212. Also shown in Figure 3C is a lever lock 233 extending from the second side 303b of body 202 of housing 200 near lever passage 212. Lever lock 233 is designed to stop rotation of lever 700 in a selected orientation.
[0066] [066] The fixed side plate 600 is illustrated in Figures 4A and 4B. The fixed side plate includes an upper end 612 and an opposite lower end 614. The fixed side plate 600 additionally includes a first edge 616 and a second opposite edge 618. The fixed side plate 600 additionally includes a first side 602a and a second side 602b. A first connection passage 606 passes through the fixed side plate 600 near the upper end 612 and the first edge 616. A second connection passage 608 passes through the fixed side plate 600 near the first edge 616 and the lower end 614. The plate fixed side 600 additionally includes a third connection passage 604 which is generally positioned in an intermediate part of fixed side plate 600 and towards the second edge 618. As shown in Figures 4A and 4B, a protrusion of spring spacer 602c if extends from the first side 602a of the fixed side plate 600 creating a depression in the second side 602b of the fixed side plate 600 to receive an end of the spring spacer 112, as discussed further below. The third connection passage 604 is centrally located within the spring protrusion 602c of the fixed side plate 600. The fixed side plate 600 also includes a lever passage 610 which is positioned close to the second edge 618 of the fixed side plate 600 and between the third connection passage 604 and the lower end 614 of the fixed side plate 600. As illustrated in Figure 4A, the second side edge 614, in this embodiment, has several extended edge parts that extend at selected angles from each other, so that the second side edge 614 conforms to the general shape of the second side edge 202d of the housing 200.
[0067] [067] With reference to Figures 5A and 5B, a rotating side plate 500 of one embodiment is illustrated. The rotating side plate 500 includes a first edge 508 and a second opposite edge 510. The rotating side plate 500 also includes an upper end 506 and an opposite lower end 504. The first edge 508 includes a plurality of edge parts 508a, 508b, 508c and 508d. In particular, the first part 508a extends from the lower end 504 to the second part 508b. The second part 508b extends from the first part 508a at a selected angle. A third part 508c extends from the second part 508b at a selected angle. The first, second and third parts 508a, 508b and 508c form a part of the rotating side plate 500 which selectively blocks access to the cable guide passage 230 of housing 200, as further discussed below. A fourth part 508d extends from the third part 508c to the upper end 506. The fourth part 508d is generally curved to generally form a cut-out section on the rotating side plate 500 which is designed to selectively receive the upper column 221 of the housing 200 when assembled. The second side edge 510 also has a plurality of edge parts 510a, 510b, 510c, 510d, 510e, 510f and 510g. In particular, a first part 510a extends from the lower end 504. A second part 510b extends from the first part 510a. A third part 510c extends from the second part 510b. A fourth part 510d extends from the third part 510c and a fifth part 510e extends from the fourth part 510d. As shown in Figure 5A, the third part 510c, the fourth part 510d and the fifth part 510e form a cut-out section on the second edge 510 of the swiveling side plate 500 that allows the movement of the swiveling side plate 500 in relation to the spring spacer 112 , when the rope grab 100 is mounted. The sixth part 510f extends from the fifth part 510e at a selected angle. The seventh part 510g extends between the sixth part 510f and the upper end 506. The swiveling side plate 500 additionally includes a first side surface 502a and a second side surface 502b. Near the lower end 504 and extending in a direction from the second side surface 502b of the rotating side plate is an extended flap 502c. The swiveling side plate 500 additionally includes a pivot connection passage 512 positioned near the lower end 504 and a cylinder connection passage 514 positioned near the upper end 506.
[0068] [068] Figures 6A to 6C illustrate an arm spring 110 of one embodiment. The arm spring 110 includes a central coiled part 110a. The rolled part 110a is positioned between a first end part 110b and a second end part 110c. The first end part 110b extends inwardly with respect to the rolled part 110a. The second end part 110c extends in a direction away from the first end part 110b and ends at an inclined retaining end 111. The second end part 110c of the arm spring 110 is shaped to engage an arm spring groove 409 locking arm 400, as further discussed below. Figures 7A to 7C illustrate a spring spacer 112, according to an embodiment of the present invention. The spring spacer 112 generally includes a cylindrical body 112a having a first end 113 and an opposite second end 114. The body 112a of the spring spacer 112 additionally includes a central passage 115. In addition, a spring retaining slot 112b is formed at the first end 113 of the spring spacer 112. The spring retaining slot 112b extends through the first end 113 of the spring spacer 112, such that it extends in a part of the central passage 115. In addition , the spring retaining slot 112b is designed to receive the first end part 110b of the arm spring 110, while the rolled part 110a of the arm spring 110 is positioned around the cylindrical body 112a of the spring spacer 112. The spring spacer 112 additionally includes an orifice 112c extending at the first end 113 of the cylindrical body 112a. The hole is used by a tool to place a required pre-winding on the arm spring 110 during assembly.
[0069] [069] Figures 8A to 8B illustrate a first lever 700, according to an embodiment of the present invention. The first lever 700 includes a stem 702 and an activation button 704. The stem 702 includes a first stem part 702a and a second stem part 702b. The first stem part 702a extends between the activation button 704 and the second stem part 702b. The second stem part 702b has a diameter that is less than the diameter of the first stem part 702a. An engagement tab 710 extends centrally from a surface of the first stem part 702a. A pair of rotating locking tabs 708a and 708b extends on opposite sides from a surface of the second stem part 702b close to the first stem part 702a. The activation button 704 includes a first disc part 704a that is coupled to one end of the first stem part 702a and a second extended part 704b that extends away from the first disc part 704a in a selected direction. The second extended part 704b provides leverage to rotate the stem 702. The activation button 704 additionally has an extended third part 704c that extends from the second extended part 704b towards the stem part 702. The third part extended shaft 704c is designed to selectively engage lever lock 231 on second side 303b of housing 200 when assembled. Figures 9A to 9C illustrate a lock member 106 of an embodiment. The locking member 106 includes a cylindrical base member 106a and an extended portion 106d that extends away from the cylindrical base member 106a near an end of the cylindrical base member 106a. The locking member 106 has a first side 107 and an opposite second side 109. The cylindrical base member 106a includes a locking member passage 106c and a cut-out section 106b which is positioned close to the first side 107 of the locking member 106 The extended part 106d includes a locking spring retaining channel 106e that is formed on the second side 109 of the locking member 106. The locking spring retaining channel 106e extends across the width of the extended part 106d. The extended part 106d additionally includes a locking spring retaining slot 106f on one side of the extended part 106d which extends to a height of the extended part 106d. The locking spring retaining slot 106f extends into the locking spring retaining channel 106e.
[0070] [070] The illustrations of the locking arm 400 are provided at least in Figures 2, 10A and 10B. The locking arm 400 includes a locking arm main portion 402 and a locking arm energy absorbing part 404. The locking arm main part 402 includes a main locking arm passage 412. In addition, an extended part locking arm portion 408 extends from the locking arm main portion 402 in a direction that is opposite to a direction that the locking arm energy absorbing portion 404 extends from the locking arm main portion 402. An arm spring groove 409 is formed at an edge close to a junction between the main locking arm part 402 and the locking arm energy absorber 404. The locking arm energy absorbing part 404 includes a energy absorber connector 406 near a termination end of the energy absorber part of locking arm 404. the energy absorber connection passage 406 is used a to connect a safety harness (not shown) used by a user to the rope claw 100, as further discussed below. For example, in a typical application, a front D-ring of a safety harness would be attached to the swivel connector 122 attached to the energy absorbing part 404 of the locking arm 400 via carabiner (not shown). During a fall event, the energy absorbing part of the locking arm 404 is designed to still adjust the absorbed energy to prevent injury to the user.
[0071] [071] With reference to Figures 11A to 11E, a embodiment of a locking cam 300 is illustrated. The locking cam 300 includes a cam body 302. The cam body 302 of the locking cam 300 includes a connection part 302a and an engagement part 302b. The cam body 302 additionally includes a first side 301a and a second side 301b. The connecting part 302a of the cam body 302 includes an engagement pass 304. Next to the engagement pass 304 on the connecting part 302a of the locking cam 300 is a cam spring retaining part 306 that includes a spring pass of the cam cam 306b extending through the locking cam 300 and a cam spring slot 306a which is formed on the first side 301a of the cam body 302. The cam spring slot 306a leads to the cam spring pass 306b. In use, a part of a cam spring 132 (a cam inducing member) shown in Figure 2 is received at the entire cam spring retaining part 306, as further described below. The first side 301a of the cam body 302 additionally includes a recessed part 312 which is positioned close to the cam spring retaining part 306 and which extends to an edge of the cam body 302. The recessed part 312 provides room for the movement of the retention end 111 of the second end part 110c of the arm spring 110 which engages the locking arm 400 when the rope grab is assembled. The engagement part 302b of the locking cam 300 extends from the connection part 302a. The width of the engaging part 302b is greater than the width of the connecting part 302a. In particular, the width of the engagement part 302b extends wider than the width of the connecting part 302a towards the first side 301a of the cam body 302. The engagement part 302b of the locking cam 300 ends, additionally, at a radial edge 302c. The radial edge 302c extends in a generally radial manner over the coupling passage 304 with a varied radial configuration, as described below. The radial edge 302c generally has a concave surface with a plurality of extended grip tabs 310 which are designed to engage an elongated member through friction.
[0072] [072] The engagement part 302b of the locking cam 300 additionally includes a first side edge 320 and a second side edge 321 which respectively extend from the connecting part 302a to the radial edge 302c. The second side edge 321 generally extends in a straight line from the connecting part 302a to the radial edge 302c. The first side edge 320 has a plurality of first side edge parts 320a, 320b and 320c. The first side edge part 320a extends from the connecting part 302a generally in a perpendicular mode. The second side edge part 320b extends from the first side edge part 320a generally in a curved configuration. The third side edge parts 320c extend from the second side edge part 320b generally in a straight line to the radial edge 302c. The locking cam 300 additionally includes a center part 303 which extends around the engagement passage 304 of the connecting part 302a of the cam body 302. The bore 303 extends outwardly from the second side 301b of the body cam 302. The engagement part 302b of the locking cam 300 additionally includes a third edge 330 which defines the engagement part 302b from the connecting part 302a. The third edge 330 includes a locking arm engaging surface 332. The extended portion 408 of the locking arm 400 engages the locking arm engaging surface 332 of the locking cam 300 during a drop event, such as the locking arm 400, as further discussed below.
[0073] [073] The construction of the rope grab 100 is further described in view of Figure 2 and the Figures described above. A cam spring 132 having a coiled section 132a and a first end 132b is received in the cam spring retaining channel 218 of body 202 of housing 200. In particular, the coiled section 132a of cam spring 132 is received in the circular 218a of the cam spring retaining channel 218 and the first end 132b of the cam spring 132 is received at the leg portion 218b of the cam spring retaining channel 218. This configuration retains a first end of the cam spring 132 in a static configuration in relation to the housing 200. A first bearing 128 is positioned within the coupling passage 304 of the locking cam 300. The coupling passage 304 is then positioned around the first column part 204a of the central column 204 of the housing 200. A second end 132c of the cam spring 132 is passed through the cam spring passage 306b and received in the cam spring slot 306a of the cam spring retaining part 306 of the locking cam 300. This arrangement The position of the cam spring 132 provides a relatively light inductive force on the locking cam 300 to rotate the locking cam 300 towards an elongated member in the elongated member passage 230 of housing 200. This relatively light inductive force is prevented by gravity in normal climbing operations that prevents the cam lock 300 from locking on the elongated member. Therefore, during normal operations, the rope gripper 100 moves relatively freely up and down the elongated member. In a free fall (fall event), the gravitational forces do not neutralize the light inductive force of the cam spring 132 and the locking cam 300 will lock on the elongated member. The inertia loads on the locking cam 300, during a fall, work in conjunction with the light inductive force of the cam spring 132 to rotate the locking cam 300 on the elongated member.
[0074] [074] A second bearing 126 is positioned in the main locking arm passage 412 of the locking arm 400. The main locking passage 412 of the locking arm is then positioned around the second column part 204b of the central column 204 of the housing 200. The spring spacer 112 is then positioned around the third column part 204c of the central column 204. The rolled part 110a of the arm spring 110 is positioned around the spring spacer 112, while the first end part 110b of the arm spring 110 is received in the spring retaining slot 112b of the spring spacer 112. The first end part 110b of the arm spring 110 is additionally received in the cutout section 203 of the third column part 204c of the column 204 of housing 200. This arrangement retains the first end part 110b of arm spring 110 in a static position with respect to housing 200. The second end part 110c of arm spring 110 is rec inserted into the arm spring groove 409 of the locking arm 400 to impose an inductive force on the locking arm 400 in a locked position. A fastener, such as a rivet 142, that passes through the central column passage 206 of the central column 204 of the housing 200 and the third connector passage 604 of the fixed side plate 600 couples the housing 200 to the fixed side plate 600.
[0075] [075] A lever spring 138 is positioned on the stem 702 of the first lever 700. The stem 702 of the first lever 700 is, in turn, passed through the lever passage 212 of the housing 200. A first end part 138a of the lever spring 138 is received in a spring retaining hole 705 in the first lever 700. A second end part 138b of lever spring 138 is positioned in a gap in the second side edge 214 of housing 200, so that a force of induction is exerted on the rod 702 of the first lever 700 in a desired direction. The extended portion 212b of the lever passage 212 allows the engaging tab 710 (shown in Figure 8A) extending from the stem 702 of the first lever 700 to pass through the lever passage 212. Once the stem 702 is passed through lever passage 212 of housing 200, lock spring 108 is positioned around stem 702. A first end portion 108a of lock spring 108 engages a part of the second side wall 214 of housing 200 to retain the first part end 108a of the lock spring 108 in a static location relative to the housing 200. The rod 702 of the first lever 700 is then passed through the locking member passage 106c of the locking member 106. The locking tab 710 of the stem 702 of the first lever 700 is received in the cutout section 106b of the lock member 106 to lock the rotation of the stem 702 with the rotation of the lock member 106. A second end part 108b of the lock spring 108 is received in the lock channel re lock spring lock 106e of the extended part 106d of the lock member 106 to exert an inductive force on the lock member 106 in a desired direction. The stem 702 is then additionally passed through the lever passage 610 on the fixed side plate 600. A washer 104 and a second lever 102 are then coupled to the second stem part 702b of the stem 702. The second lever 102 includes a connecting passage rod 102c with opposite slots 102a and 102b. Opposite grooves 102a and 102b receive rotation locking tabs 708a and 708b of stem 702 of first lever 700 respectively to lock rotation of second lever 102 to rotation of stem 702.
[0076] [076] A first fastener 140 (first rivet) that passes through the upper column passage 220 of the upper column 221 of the housing 200 and through the first connection passage 606 on the fixed side plate 600 and a second fastener 144 (second rivet) that it passes through the lower column passage 210 of the lower column 208 of the housing 200 and through the second connection passage 608 on the fixed side plate 600, additionally, couples the housing 200 to the fixed side plate 600. The second fastener 144 passes, additionally, through of the pivot connection passage 512 of the swiveling side plate 500 to provide a pivot connection for the swiveling side plate 500. The rope grab 100 additionally includes an upper cylinder 114 and a lower cylinder 134 to guide the elongated member through the cable guide channel 230 of housing 200. The upper cylinder 114 is rotationally coupled to the swiveling side plate 500 through the upper cylinder rivet 116. The ci lower lindro 134 is rotationally coupled to the housing 200 adjacent to the cable guide 231 of the housing 200 through the lower rivet 136.
[0077] [077] A lifeline swivel connector 122 is coupled to the energy absorbing part 404 of the locking arm 400 via swivel pivot connector 118. In particular, swivel lifeline connector 122 includes a base 121c with a connecting passage 121 and a pair of spaced arms 122a and 122b with aligned passages 123a and 123b. A pair of spaced arms 118a and 118b of a swivel pivot connection 118 is passed through the connection passage 121 of swivel lifeline connector 122. A head portion 118c of swivel pivot connection 118 has a diameter greater than the diameter of the connection pass 121 of the swivel lifeline connector 122. The spaced arms pair 118a and 118b have aligned swivel pivot connection passages 117. A rivet 120 passes through the aligned swivel connection passages. swivel pivot 117 and connecting passage 406 of the locking arm 400 to couple the swiveling lifeline connector 122 to the locking arm 400. A rivet 124 passed through the aligned passages 123a and 123b of the lifeline connector swivel lifters 122 is used to attach a lifeline to the rope grab 100. As discussed above, the lifeline would be attached to a safety harness (not shown) used by a user.
[0078] [078] With reference to the partial views of the rope claw 100 in Figures 10A and 10B, the operation of the rope claw 100 is discussed. Figure 10A illustrates the swiveling side plate 500 in a retention configuration, in which a part of the swiveling side plate 500 near the first edge 508 of the swiveling side plate 500 covers at least a part of the side opening 150 to the cable guide passage 230. In this configuration, an elongated member (not shown in Figure 10A) is retained in the cable guide passage 230 of the cable guide 231 of the housing 200. The retention configuration is achieved when the extended part 106d of the lock member 106 engages the second edge portion 510b of the second edge 510 of the swiveling side plate 500 which holds the swiveling side plate 500 in a static location relative to the cable guide 231. Lock spring 108 induces lock member 106 in this configuration. Figure 10B illustrates the swiveling side plate 500 in an open configuration. In this configuration, a portion of the swiveling side plate 500 near the first edge 508 of the swiveling side plate 500 is moved far enough away from the cable guide 231 to allow an elongated member to pass in and out of the cable guide passage. 230 through the side opening 150 to the cable guide passage 230. To place the swiveling side plate 500 in this configuration, at least one of the first and second levers 700 and 102 is rotated, which rotates the extended part 106d of the member latch 106 away from the second edge portion 510b of the second edge 510 of the swiveling side plate 500. The induction force from the side plate spring 130 engaging the extended flap 502c induces the swiveling side plate 500 into the retention configuration . Therefore, the rotating side plate 500 needs to be rotated by hand after at least one of the levers 700 or 102 is rotated. This is done by pulling back the rotating side plate 500 next to the upper cylinder 114. The rope claw 100 is designed so that a user can either rotate one of the levers 700 or 102 or pull back the rotating side plate 500 to place the rotating side plate in the open configuration with a single hand. Once in the open position, an elongated member can slide in or out of cable passage 230. Once the elongated member is positioned in or removed from cable passage 230, the rotating side plate 500 can be released to rotate the swiveling side plate 500 to the holding position and the lever 700 or 102 can be released to engage the locking member 106 with the swiveling side plate 500.
[0079] [079] Partial cross-sectional side views of the rope claw 100 of Figures 12A and 12B illustrate the rope claw 100 that engages two different elongated members 702 and 714, respectively. As discussed above, elongated members 702 and 714 can be a rope, cable or any type of elongated member that can be used as a safety support member. One of the features of the modalities of the present invention is that the elongated members 702 and 714 can have different diameters, as shown in Figures 12A and 12B, but will have the same contact angle 720 (Alpha 1 and Alpha 2). That is, the curvature of the radial edge 302c of the locking cam 300 is not constant with respect to the central column passage 206. The curvature varies so that the same contact angle 720 between the radial edge 302c of the locking cam 300 and the cable guide 231 of the housing is reached for a range of diameters of the elongated members. The contact angle 720 is an angle that provides sufficient holding friction of the rope claw 100 between the radial edge 302c of the locking cam 300 and the cable guide 231 during a fall event. This is further discussed below.
[0080] [080] The partial cross-sectional views in Figures 12A and 12B illustrate the rope claw 100 in use after the elongated member 702 or 714 has been positioned within the cable guide passage 230 of housing 200. As shown, the members elongated 702 or 714 are guided through the cable guide passage 230 formed by the cable guide 231 with the upper cylinder 114 and the lower cylinder 134. During normal use, when the user is climbing or descending, the locking cam rotates to the open position under the influence of gravity, then a minimal frictional force (if any) is applied to the elongated member through the rope claw 100. Therefore, the rope claw 100, in normal use without a fall event , is relatively free to move up and down on the elongated limb with the user's movement that would be coupled to the locking arm via the carabiner or other connecting means and safety harness (not shown). Figures 12A and 12B illustrate that, in this embodiment, during normal use, a part of the side intermediate wall part 216 of body 202 of housing 200 rests in the locking arm engaging groove 410 of the locking arm 400.
[0081] [081] During a fall event, a front user attachment to the user's harness that is attached to the swivel connector 122 (which is in turn attached to the locking arm 400) will pull the locking arm 400 to low, by rotating the locking arm 400 over the central column 204. This movement causes the extended part 408 of the locking arm 400 to engage the locking arm engaging surface 332 of the locking cam 300 in the same pivoting cam locking device 300 also on the central column 204 of the housing 200. This movement of the locking cam 300 forces the radial edge 302c of the locking cam 300 to tightly clamp a part of the elongate member 702 or 714 between the radial edge 302c of the locking cam. locking 300 and the cable guide 231 of the housing 200, still locking the movement of the rope claw 100 in relation to the elongated member 702 or 714. If the force is large enough during the fall event, the energy absorbing part 404 locking arm 400 will adjust to absorb energy and prevent injury to the user. The rope claw 100 will remain locked over the elongated member 702 or 714 until the downward force of the falling user is removed. As discussed above, also during a fall event, the gravitational forces on the cam lock 300 are overcome by the light inductive force of the cam spring 132, as well as by inertia forces, also to cause the cam lock 300 lock on the elongated members 702 or 714.
[0082] [082] With reference to Figures 13A and 13B, an explanation is given of obtaining the same contact angle 720 with elongated members of different sizes 702 and 714, in one embodiment. The radial edge profile 302c of the locking cam 300 for a given contact angle 720 (Alpha 1 and Alpha 2 in Figures 12A and 12B) is determined by dividing the locking cam 300 into multiple thin slices separated by planes 350 which are perpendicular to the radial edge profile 302c and pass through a rotational geometric axis 360 of the locking cam 300. The radial edge profile 302c is generated by creating edges 352 that maintain an angle 354 (Beta) between the radial edge profile 302c of the locking cam 300 and the planes 350 that separate the thin slices of the locking cam 300. The Beta 354 angle is equal to 90 ° - contact angle 702 (Alpha 1 or Alpha 2).
[0083] [083] The embodiments of the present invention additionally include a bypass support 800 which is designed to be coupled to a support structure and to retain an elongated member that the rope claw 100 is engaging in a generally static position. An example of a bypass holder 800 is illustrated in Figures 14A and 14B. The bypass holder 800 includes an 802 base holder. The 802 base holder includes a first section 802a and a second section 802b. The second section 802b generally extends from the first section 802a in a perpendicular mode. The first section 802a includes two spaced connection openings 806a and 806b. The second section 802b of the base support 802 includes a first connection opening 804a and a second connection opening 804b. The bypass support 800 additionally includes a clamp member 810. This embodiment of the clamp member 810 is made from a plate having a first side edge 810a and a second side edge positioned on the opposite side 810b. The clamp member 810 additionally includes a top edge 810c and a bottom edge positioned on the opposite side 810d. The clamp member 810 additionally includes a centrally positioned upper connection opening 812 which is positioned close to the upper edge 810c of the clamp member 810. The clamp member 810 also includes a slot 814 which extends on the first side edge 810a of the clamp member 810 near the lower edge 810d of the clamp member 810. In use, a support structure, such as, but not limited to, a stair step, is positioned between the first section 802a of the base support 802 and the clamp member 810. A clamp 816a then passes through a connection opening 806a in the base bracket 802 and the upper connection opening 812 of the clamp plate member 810. A nut 818a is then engaged in threadable way to the clamp 816a to couple an upper part of the clamp member 810 to the base bracket 802. Similarly, a clamp 816b is passed through a connection opening 806b of the base bracket and 802 and into slit 814 of clamp member 810. Nut 818b is then threadably engaged with fastener 816b to couple a lower part of clamp member 810 to the base bracket 802.
[0084] [084] The bypass holder 800 additionally includes a sleeve clamp 820. The sleeve clamp 820 includes a first part 820a that has first and second connection openings 823 (only one connection opening 823 is shown in Figure 14B) . The connection openings 823 are aligned with the first and second connection openings 804a and 804b of the base support 802. The rivets 824a and 824b that pass through the respective connection openings 823, 804a and 804b couple the sleeve clamp 820 to the base support 802. The sleeve clamp 820 additionally includes a second part 820b extending from the first part 820a generally in a perpendicular mode. The second part 820b includes retaining ears 822a and 822b. The ears 822a and 822b are spaced by a centrally spaced portion 825. The first retaining ear 822a has a generally C-shaped configuration with its open side facing a first direction. The second retaining ear 822b is also in a generally C-shaped configuration with its open side facing a second direction which is generally opposite the first direction. The ears 822a and 822b form a receiving sleeve channel 821 which is formed from a first channel 821a formed by the first retaining ear 822a and a second channel 821b formed by the second retaining ear 822b.
[0085] [085] The sleeve 830 is used in conjunction with the bypass holder 800. The sleeve 830 has a tubular configuration with a central passage 832. An elongated member (such as the elongated member 920 shown in Figure 15A) is received within the passage central. The sleeve 830 additionally includes a first recessed section 831a and a second recessed section 831b. The first and second recessed sections 831a and 831b are recessed on an outer surface of the sleeve 830 in an opposite manner. The first and second recessed sections 831a and 831b are spaced from each other by an intermediate part 830a of the sleeve 830. In particular, the first recessed portion 831a is configured to receive the first retaining ear 822a of the sleeve clamp 820 and the second recessed part 831b is configured to receive the second retaining ear 822b of the sleeve clamp 820. In use, since the bypass support 800 is coupled to the support structure, as described above, the sleeve 830 (which has the elongated member 920 which passes through its central passage 832) is inclined with respect to the receiving sleeve channel 821 (approximately 90 degrees) and positioned in such a way that the intermediate part of the sleeve 830 is received in the space 825 between the retaining ears 822a and 822b of sleeve clamp 820. Since the intermediate part of sleeve 830 is positioned within the space 825 between the retaining ears 822a and 822b of sleeve clamp 820, sleeve 830 is angled to align with the receiving sleeve channel 821 of the sleeve clamp 820, still allowing the first ear 822a of the sleeve clamp 820 to be received in the first recess 831a of the sleeve and the second retaining ear 822b to be received in the second recess 831b of the sleeve 830. This locks the sleeve 830 inside the sleeve clamp 820 of the bypass bracket 800. This design allows the bypass bracket 800 to be attached to the support structures prior to connection to the elongated member 920.
[0086] [086] The bypass holder 800 is designed to retain the stationary elongate member 920, while it does not interfere with the function of the rope claw 100. With reference to Figures 15A to 15C, an illustration of it is provided. The bypass support 800, in this embodiment, includes a clamp member 811 that has an edge with teeth 811a that are designed to grip the support structure 900. Figures 15A through 15C illustrate the rope claw 100 as it passes through the bypass support 800. The side view of Figure 15B illustrates the rope grab 100 without the fixed side plate 600 for illustration purposes. As shown, the sleeve 830 holding the elongated member 920 is received at the cable guide passage 230 of the rope grab 100. The locking cam 300 will allow it to pass unless a fall event occurs. If a drop event occurs when the sleeve 830 is inside the cable guide passage 230, the locking cam 300 will lock over the sleeve 830. Since the sleeve 830 is locked to the bypass support 800, the rope claw 100 will remain stationary to limit the fall. In the top view illustrated in Figure 15C, it is shown how the bypass support 800 does not interfere with the function of the rope claw 100. In particular, the second part 820b of the sleeve clamp 820 passes through the opening between the rotating side plate 500 and the cable guide 231 of the housing 200 for positioning the sleeve 830 and the elongate member 920 within the cable guide passage 230 of the rope grab 100. A system may include a plurality of bypass supports 800 for positioning a support structure 920 in a desired location.
[0087] [087] Another modality of a 1000 rope grab is illustrated in Figures 16A to 16C. In particular, Figure 16A illustrates a first side perspective view of the rope claw 1000, Figure 16B illustrates a second side perspective view of the rope claw 1000 and Figure 16C illustrates a rear perspective view of the rope claw 1000. In addition, a first exploded side view of the rope claw 1000 is illustrated in Figure 17. Similar to the rope claw 100 described above, the rope claw 1000 includes a housing 1200, a locking cam 1300, a locking arm 1400, a swiveling side plate 1500 and a fixed side plate 1600. Locking cam 1300, locking arm 1400 and swiveling side plate 1500 are pivotally coupled to housing 1200.
[0088] [088] Rope claw housing 1000 includes rear slot 1207 best shown in Figures 16C and Figure 17. A lever 1700, as discussed below, extends through rear slot 1207 in this embodiment. Next to a first front side edge of the housing 1200 is a cable guide 1231 that extends from a first side edge of the housing 1200 generally in a C shape. The cable guide 1231 forms a cable guide passage 1230 ( or elongated member passage) extending from near an upper end to a lower end of housing 1200.
[0089] [089] Near the lower end of housing 1200 and cable guide 1231, lower cylinder rivet passages 1240 are positioned that pass through housing 1200. A rivet 1142 that passes through the lower cylinder rivet passages 1240 rotationally couples a lower cylinder 1134 to housing 1200. A central column 1204 generally extends perpendicularly from the first side of housing 1200. Central column 1204 is generally located in an intermediate part between an upper and lower end of housing 1200 towards a second side edge of housing 1200 similar to the central column 204 of the rope claw 100, discussed above. Also similar to the rope claw 100, the coupling passage 1340 of the locking cam 1300, as well as the passages in the cam spring 1132, the first bearing 1128, washer 1119, second bearing 1117, the spring spacer 1112, the spring arm 1110 are all received around the central column 1204 of the housing 1200. The central column 1204 includes an end portion 1205 which is received in a connection passage 1604 on the fixed side plate 1600 for coupling the housing 1200 to the fixed side plate 1600. According to the rope claw 100 described above, the housing 1200 includes a cam spring retaining channel 1218 that surrounds the central column 1204. The cam retaining channel 1218 includes a circular portion and an extended leg portion to retain a first side of the cam spring 1132. A second side of the spring engages the locking cam 1300. This arrangement of the cam spring 1132 provides a relatively light inductive force on the locking cam 1300 to rotate the locking cam o 1300 towards an elongated member (cable or rope) in the passage of elongated member 1230 of housing 1200. This relatively light inductive force is prevented by gravity in normal climbing operations that prevents cam lock 1300 from locking on the member elongated. Therefore, during normal operations, the rope claw 1000 moves relatively free up and down the elongated member. In a free fall (fall event), the gravitational forces do not neutralize the light inductive force of the cam spring 1132 and the locking cam 1300 will lock on the elongated member. The inertia loads on the locking cam 1300 during a fall also work in conjunction with the light inductive force of the cam spring 1132 to rotate the locking cam 1300 on the elongated member.
[0090] [090] On the rope grab 1000, the locking arm 1400 does not include an energy absorbing part like the locking arm 400 described above. The locking arm 1400, however, does not include an extended locking arm part 1408 and a connecting arm 1404. The extended locking arm part 1408 is designed to engage a part of the locking cam 1300 during a fall event , to engage a radial edge 1302 on the elongate member, as described above in relation to the extended locking arm part 408 and the locking cam 300. The connecting arm 1404 includes a connecting opening 1406 in which a connector 1350 is attached. In particular, a 1122 lifeline swivel connector is coupled to the connection opening 1406 of the locking arm 1400 through the swivel pivot connector 1118. The swivel lifeline connector 1122 includes a base with a passage connection 1121 and a pair of spaced arms 1122a and 1122b with aligned passages 1123a and 1123b. A pair of spaced arms 1118a and 1118b from a swivel pivot connector 1118 is passed through the connection passage 1121 of the swivel lifeline connector 1122. A head portion 1118c of the swivel pivot connector 1118 has a diameter greater than the diameter of the connection passage 1121 of the swivel lanyard connector 1122. The spaced arms pair 1118a and 1118b have aligned swivel pivot connection passages 1115a and 1115b. A rivet 1120 passes through the aligned swivel pivot connection passages 1115a and 1115b and the connection pass 1406 of the locking arm 1400 to attach the swivel rope connector 1122 to the locking arm 1400. A rivet 1124 passed through the aligned passages 1123a and 1123b of the swivel lifeline connector 1122 is used to attach a lifeline to the 1000 rope claw. Carabiner 1350 is selectively attached to rivet 1124. Carabiner 1350 would be attached to a safety harness (not shown) worn by a user.
[0091] [091] The second bearing 1117 is positioned in a main locking arm passage 1412 of the locking arm 1400. The main locking passage 1412 of the locking arm is then positioned around the central column 1204 of the housing 1200, as described above. The spring spacer 1112 is also positioned around another part of the central column 1204. The coiled part of the arm spring 1110 is positioned around the spring spacer 1112, while a first end part 1110a of the arm spring 1110 is received in a spring retaining slot 1112b of the spring spacer 1112. The first end part 1110a of the arm spring 1110 is additionally received in a cut-out section 1203 of the central column 1204 of the housing 1200. This arrangement retains the first part of end 1110a of arm spring 1110 in a static position with respect to housing 1200. A second end part 1110b of arm spring 1110 is received in the arm spring groove 1409 of locking arm 1400 to impose an inductive force on the locking arm 1400 in a locked position.
[0092] [092] The swiveling side plate 1500 includes an upper part with a cylinder passage 1514 and a lower part with a pivot connection passage 1512. The upper cylinder 1114 is rotationally coupled to a side plate 1500 through pin 1116. The pivot connection passage 1512 receives a second column 1208 of the housing 1200. The swiveling side plate 1500 additionally includes a first edge 1508 and a second opposite edge 1510. The swiveling side plate 1500 additionally includes a first cut-out section 1533 extending from the second edge 1510 near the bottom and a second centrally located cutout section 1531 to reduce the weight of the rope claw 1000. Also included along the second edge 1510 of the swiveling side plate 1500 is a locking surface part 1511 and an extended flap 1502. The first cut-out section 1533 is positioned between the locking surface part 1511 and the extended flap 1502. One side plate spring 1130 is also received in a second column 1208 of housing 1200. An inductive force from side plate spring 1130 that engages the extended flap 1502 induces the rotating side plate 1500 into the retention configuration. The rotating side plate 1500 needs to be rotated by hand after lever 1700 (discussed below) is rotated. This is done by pulling back the rotating side plate 1500 next to the upper cylinder 1114. Once in the open position, an elongated member can be slid in or out of the cable passage 1230. Once the elongated member is positioned in or is removed from the cable gland 1230, the swivel side plate 1500 can be released to rotate the swivel side plate 1500 to the holding position and lever 1700 can be released to engage lock member 1106 (discussed below) with the swivel side plate 1500.
[0093] [093] Lever 1700 and an associated lever induction member 1109 are mounted on a third column 1211 that extends from housing 1200. Lever 1700 is rotationally mounted on third column 1211. The lever induction member 1109 induces lever 1700 to a locked position with one end engaging the lever 1700 and the other end engaging the housing 1200. Lock member 1106 and a lock member induction member 1108 are also mounted on third column 1211. Lock member induction member 1108 induces lock member 1106 into a lock position, so that a lock part 1107 of the lock member engages the lock surface part 1511 of the rotating side plate 1500. A raised flap 1701 of lever 1700 is received in a slot 1105 of latch member 1106 to rotate latch part 1107 of latch member 1106 away from latch surface part 1511 of the rotating side plate when lever 1 700 is rotated.
[0094] [094] With reference to the partial views of the rope grab 1000 in Figures 18A and 18B, a part of the operation of the rope grab 1000 is discussed. Figure 18A illustrates the swiveling side plate 1500 in a retention configuration, in which a portion of the swiveling side plate 1500 near the first edge 1508 of the swiveling side plate 1500 covers at least part of the side opening 1150 through the cable guide passage 1230. In this configuration, an elongated member (not shown in Figure 18A) is retained in the cable guide passage 1230 of the cable guide 1231 of the housing 1200. The retention configuration is achieved when the extended part 1107 of the lock member 1106 engages the locking surface part 1511 of the second edge 1510 of the swiveling side plate 1500, which holds the swiveling side plate 1500 in a static location relative to the cable guide 1231. The locking member induction member 1108 induces the locking member hangs 1106 in this configuration. Figure 18B illustrates the rotating side plate 1500 in an open configuration. In this configuration, a portion of the swiveling side plate 1500 near the first edge 1508 of the swiveling side plate 1500 is moved away from the cable guide 1231 enough to allow an elongated member to pass in and out of the cable guide passage. 1230 through the side opening 1150 to the cable guide passage 1230. To place the rotating side plate 1500 in this configuration, in this mode, the lever 1700 is rotated, which rotates the extended part 1107 of the lock member 1106 away from the locking surface 1511 of the second edge 1510 of the swiveling side plate 1500. The induction force from the side plate spring 1130 engaging the extended flap 1511 induces the swiveling side plate 1500 into the retention configuration. Therefore, the rotating side plate 1500 needs to be rotated by hand after lever 1700 is rotated. This is done by pulling back the rotating side plate 1500 next to the upper cylinder 1114. The rope claw 1000 is designed so that a user can either rotate the lever 1700 or pull back the rotating side plate 1500 to place the plate swiveling side in one-handed open configuration. Once in the open position, an elongated member can be slid in or out of the cable gland 1230. Once the elongated member is positioned in or removed from the cable gland 1230, the swiveling side plate 1500 can be released to rotate the swiveling side plate 1500 to the holding position and lever 1700 can be released to engage locking member 1106 with the swiveling side plate 1500.
[0095] [095] The partial cross-sectional views in Figures 19A and 19B illustrate the rope claw 1000 in use, after the elongated member 1702 or 1714 has been positioned within the cable guide passage 1230 of housing 1200. As illustrated, the elongated members 1702 or 1714 are guided through the cable guide passage 1230 formed by the cable guide 1231 with the upper cylinder 1114 and the lower cylinder 1134. During normal use, when the user is climbing or descending, the locking cam 1300 rotates to the open position under the influence of gravity, thus a form of minimal friction (if any) is applied to the elongated member through the rope claw 1000. Consequently, the rope claw 1000, in normal use without event drop, it is relatively free to move up and down on the elongated member with the user's movement that would be coupled to the locking arm 1400 through the carabiner or other means of connection and safety harness (not shown). Figures 19A and 19B illustrate that the rope claw 1000 can be used on elongated members of different sizes 1702 and 1714. The part of the radial engaging edge 1302 of the locking cam 1300 that engages the elongated member depends on the diameter of the elongated member 1702 and 1714.
[0096] [096] According to the rope claw 100, during a fall event with the rope claw 1000, a front user attachment to the user's harness that is attached to the locking arm 1400 will pull the locking arm 1400 downwards, rotating the locking arm 1400 on the central column 1204 therein. This movement causes the extended part 1408 of the locking arm 1400 to engage a locking arm engaging surface 1332 of the locking cam 1300 by pivoting the locking cam 1300 therein. also on the central column 1204 of housing 1200. This movement of the locking cam 1300 forces the radial engaging edge 1302 of the locking cam 1300 to tightly clamp a part of the elongate member 1702 or 1714 between the radial edge 1302 of the locking cam 1300 and the cable guide 1231 of the housing 1200, thereby locking the movement of the rope claw 1000 in relation to the elongated member 1702 or 1714. The rope claw 1000 will remain locked on the member alo 1702 or 1714 until the downward force of the falling user is removed. As discussed above, also during a fall event, the gravitational forces on the cam lock 1300 are overcome by the light inductive force of the cam spring 1132, as well as by inertia forces, to also cause the cam lock 1300 lock on the elongated members 1702 or 1714.
[0097] [097] Another modality of a 2000 rope grab is illustrated in Figures 20A and 20B. In particular, Figure 20A illustrates a first side perspective view of the rope claw 2000, Figure 20B illustrates a second side perspective view of the rope claw 2000. Additionally, a first exploded side view of the rope claw 2000 is illustrated in Figure 21. Similar to the rope grab 100 described above, the rope grab 2000 includes a housing 2200, a locking cam 2300, a locking arm 2400, a swiveling side plate 2500 and a fixed side plate 2600. The locking cam 2300, locking arm 2400 and swiveling side plate 2500 are pivotally coupled to housing 2200.
[0098] [098] Rope clamp housing 2200 2000 includes a cable guide 2231 extending from the first side edge of housing 2200 generally in a C shape. Cable guide 2231 forms a cable guide passage 2230 ( or elongated limb passage) extending from near an upper end to a lower end of housing 2200. Near the lower end of housing 2200 and cable guide 2231, lower cylinder rivet passages 2340 which pass through the housing 2200. A rivet 2142 that passes through the lower cylinder rivet passages 2340 rotationally couples a lower cylinder 2134 to housing 2200. A central column 2204 generally extends perpendicularly from the first side of housing 2200. The central column 2204 it is usually located in an intermediate part between an upper end and a lower end of housing 2200 towards a second late edge housing 2200 similar to the center column 204 of the cable clamp 100 discussed above. Also similar to the cable claw 100, the coupling passage 2304 of the locking cam 2300, as well as the passages in the cam spring 2132, the first bearing 2128, second bearing 2117, the spring spacer 2112, the arm spring 2110 are all received around the central column 2204 of the housing 2200. The central column 2204 includes an end portion 2205 which is received in a connection passage 2604 on the fixed side plate 2600 for coupling the housing 2200 to the fixed side plate 2600. According to the claw of rope 100 described above, housing 2200 includes a cam spring retaining channel 2218 that surrounds central column 2204. Cam retaining channel 2218 includes a circular portion and an extended leg portion to retain a first side of the spring cam 2132. A second side of the spring engages the locking cam 2300. This arrangement of the cam spring 2132 provides a relatively light inductive force on the locking cam 2300 to rotate the locking cam 2300 towards They are attached to an elongated member (cable) in the elongated member passage 2230 of housing 2200. This relatively light inductive force is prevented by gravity in normal climbing operations that prevents cam lock 2300 from locking on the elongated member. Therefore, during normal operations, the rope grab 2000 moves relatively freely up and down the elongated member. In a free fall (fall event), the gravitational forces do not neutralize the light inductive force of the cam spring 2132 and the locking cam 2300 will lock on the elongated member. The inertia loads on the locking cam 2300 during a fall also work in conjunction with the light inductive force of the cam spring 2132 to rotate the locking cam 2300 on the elongated member.
[0099] [099] On the rope grab 2000, the locking arm 2400 does not include an energy absorbing part like the locking arm 400 described above. Locking arm 2400 does not include an extended part of locking arm 2408 and a connecting arm 2404. Extended part of locking arm 2408 is designed to engage a portion of locking cam 2300 during a drop event to engage an edge radial 2302 on the elongated member, as described above in relation to the extended locking arm part 408 and the locking cam 300. The connecting arm 2404 includes a connecting opening 2406 in which a connector 2350 is attached. In particular, a 2122 lifeline swivel connector is coupled to the connection opening 2406 of the locking arm 2400 through the swivel swivel connector 2118. The swivel lifeline connector 2122 includes a base with a passage connection 2121 and a pair of spaced arms 2122a and 2122b with aligned passages 2123a and 2123b. A pair of spaced arms 2118a and 2118b from a swivel pivot connection 2118 is passed through the connection passage 2121 of the swivel lifeline connector 2122. A head portion 2118c of the swivel pivot connection 2118 has a diameter greater than the diameter of the connection pass 2121 of the swivel lifeline connector 2122. The spaced arms pair 2118a and 2118b have aligned swivel pivot connection passages 2115a and 2115b. A rivet 2120 passes through the aligned swivel pivot connection passages 2115a and 2115b and the connection passage 2406 of the locking arm 2400 to attach the swivel lifeline connector 2122 to the locking arm 2400. A rivet 2124 passed through the aligned passages 2123a and 2123b of the swivel lifeline connector 2122 is used to attach a lifeline to the 2000 rope claw. The 2350 carabiner is selectively attached to the 2124 rivet. The 2350 carabiner would be attached to a safety harness (not shown) worn by a user.
[0100] [0100] The second bearing 2117 is positioned in a main locking arm passage 2412 of the locking arm 2400. The main locking passage 2412 of the locking arm is then positioned around the central column 2204 of housing 2200, as shown described above. The spring spacer 2112 is also positioned around another part of the central column 2204. The coiled part of the arm spring 2110 is positioned around the spring spacer 2112, while a first end part 2110a of the arm spring 2110 is received in a spring retaining slot 2112b of the spring spacer 2112. The first end part 2110a of the arm spring 2110 is additionally received in a cut-out section 2203 of the central column 2204 of the housing 2200. This arrangement retains the first part of end 2110a of the arm spring 2110 in a static position with respect to housing 2200. A second end part 2110b of the arm spring 2110 is received in the arm spring groove 2409 of the locking arm 2400 to impose an inductive force on the locking arm 2400 in a locked position.
[0101] [0101] The swivel sliding plate 2500 includes an upper part with a cylinder passage 2514 and a lower part with a pivot connection passage 2512. The upper cylinder 2114 is rotationally coupled to the sliding plate 2500 through pin 2116. A pivot connection passage 2512 receives in the second column 2208 of housing 2200. The swivel slide plate 2500 additionally includes a first edge 2508 and a second opposite edge 2510. The swiveling side plate 2500 additionally includes a first cut-out section 2533 extending from the second edge 2510 close to the bottom and a second centrally located cutout section 2531 to reduce the weight of the rope grab 2000. Also included along the second edge 2510 of the rotating side plate 2500 is a part lock surface 2511 and an extended flap 2502. The first cut-out section 2533 is positioned between the lock surface part 2511 and the extended flap 2502. U a side plate spring 2108 is also received in a second column 1208 of housing 2200. An inductive force from side plate spring 2108 that engages the extended flap 2502 induces the rotating side plate 2500 into the retention configuration. The 2500 rotating side plate needs to be rotated by hand after lever 2700 or 2102 (discussed below) is rotated. This is done by pulling back the rotating side plate 2500 next to the upper cylinder 2114. Once in the open position, an elongated member can be slid in or out of the 2230 cable passage. Once the elongated member is positioned inside or removed from the cable gland 2230, the swivel side plate 2500 can be released to rotate the swivel side plate 2500 to the holding position and lever 2700 or 2102 can be released to engage lock member 2106 (discussed below) to the 2500 swiveling side plate.
[0102] [0102] In this embodiment, the first lever 2700 includes a lever column 2701 that extends through a first lever passage 2207 in housing 2200 and a second lever passage 2607 in the fixed side plate 2600. The second lever 2102 and a washer 2104 are mounted on one end of lever column 2701. Therefore, this mode has two levers 2700 and 2102 that are connected together, which are positioned respectively on each side of the rope grab 2000. A lock member 2106 is also mounted in lever column 2701. In particular, a lock tab 2707 extending from lever column 2701 is received in a lock slot 2109 to lock the rotation of lock member 2106 with the rotation of lever column 2701. The locking member 2106 engages the locking surface part 2511 of the swivel slide plate 2500 to lock the swivel side plate 2500 to cover one side of the cable guide passage 2230, as d cut below. Lock member 2106 includes a cutout section 2107. When lever column 2701 is rotated by turning one of the levers 2700 or 2102 and cutout section 2107 is aligned with the locking surface part 2511 of the swiveling side plate 2500 , the 2000 rope grab is in an unlocked configuration and the 2500 swivel slide plate can be moved, as discussed below. A lever-inducing member 2138 is received around lever column 2701. The lever-inducing member 2138 has one end engaged with housing 2200 and the other end engaged with lever 2700 to induce lever column 2701 and the member of connected lock 2106 in a locked configuration, where the cut-out section 2107 of lock member 2106 is not aligned with the lock surface part 2511 of the rotating side plate.
[0103] [0103] With reference to the partial views of the rope grab 2000 in Figures 22A and 22B, a part of the operation of the rope grab 2000 is discussed. Figure 22A illustrates the swivel side plate 2500 in a retention configuration, in which a portion of the swivel side plate 2500 near the first edge 2508 of the swivel side plate 2500 covers at least part of the side opening 2150 through the cable guide passage 2230. In this configuration, an elongated member (not shown in Figure 22A) is retained in the cable guide passage 2230 of the cable guide 2231 of the housing 2200. The retention configuration is achieved when the cut-out section 2107 of the lock member 2106 it is not aligned with the locking surface part 2511 of the second edge 2510 of the swiveling side plate 2500, as shown in Figure 22A. As illustrated, lock member 2106 in this configuration engages swivel side plate 2500 to hold swivel side plate 2500 in a static location relative to cable guide 2231. Lever induction member 2138 induces lock member 2106 in this configuration , as discussed above. Figure 22B illustrates the 2500 swivel side plate in an open configuration. In this configuration, the cutout section 2107 of the locking member 2106 is aligned with the locking surface part 2511 of the 2500 swiveling side plate. This allows the 2500 swiveling side plate to pivot. When pivoted, a portion of the swivel side plate 2500 near the first edge 2508 of the swivel side plate 2500 is moved far enough away from the cable guide 2231 to allow the passage of an elongated member in and out of the cable guide passage. cable 2230 through side opening 2150 to the cable guide passage 2230. To place the swiveling side plate 2500 in this configuration, in this mode, one of the levers 2700 or 2102 is rotated, which rotates the lock member 2106 to align the section in cutout 2107 with the latch surface part. The inductive force from the side plate spring 2108 that engages the extended flap 2502 induces the rotating side plate 2500 into the retention configuration. Therefore, the swiveling side plate 2500 needs to be rotated by hand after levers 2700 and 2102 are rotated. This is done by pulling back the 2500 swiveling side plate next to the upper cylinder 2114. The rope claw 2000 is designed so that a user can either rotate levers 2700 and 2102 or pull back the 2500 swiveling side plate to place the 2500 swiveling side plate in the one-handed open configuration. Once in the open position, an elongated member can be slid in or out of the cable gland 2230. Once the elongated member is positioned in or removed from the cable gland 2230, the swiveling side plate 2500 can be released to rotate the swivel side plate 2500 to the holding position and levers 2700 and 2102 can be released to engage lock member 2106 with the swivel side plate 2500.
[0104] [0104] The partial cross-sectional views in Figures 23A and 23B illustrate the rope claw 2000 in use, after the elongated member 2914 or 2920, respectively, has been positioned within the cable guide passage 2230 of housing 2200. According to shown, the elongated members 2914 or 2920 are guided through the cable guide passage 2230 formed by the cable guide 2231 with the upper cylinder 2114 and the lower cylinder 2134. During normal use, when the user is climbing or descending, the cam locking element 2300 rotates to the open position under the influence of gravity, thus a minimum frictional force (if any) is applied to the elongated member through the rope claw 2000. Consequently, the rope claw 2000, in one use normal without a fall event, it is relatively free to move up and down on the elongated limb with the user's movement that would be coupled to the 2400 locking arm through the carabiner or other means of connection and safety harness (not shown). Figures 23A and 23B illustrate that the rope claw 2000 can be used on elongated members of different sizes 2914 and 2920. The part of the radial engagement edge 2302 of the locking cam 2300 that engages the elongated member depends on the diameter of the elongated member 2914 and 2920.
[0105] [0105] According to the rope claw 100, during a fall event with the rope claw 2000, a front user attachment to the user's harness that is coupled to the locking arm 2400 will pull the locking arm 2400 downwards, rotating the locking arm 2400 on the central column 2204 therein. This movement causes the extended part 2408 of the locking arm 2400 to engage a locking arm engagement surface 2332 of the locking cam 2300 on it by pivoting the locking cam 2300 also on the central column 2204 of housing 2200. This movement of the locking cam 2300 forces the radial engaging edge 2302 of the locking cam 2300 to tightly clamp a part of the elongated member 2914 or 2920 between the radial edge 2302 of the locking cam 2300 and the cable guide 2231 of the housing 2200 still locking the movement of the rope claw 2000 with respect to the elongated member 2914 or 2920. The rope claw 2000 will remain locked on the elongate member 2914 or 2920 until the downward force of the falling user is removed. As with other modalities, also during a fall event, the gravitational forces on the cam lock 2300 are overcome by the light inductive force of the cam spring 2132, as well as by inertia forces, to also cause the cam lock 2300 beam over 2914 or 2920 elongated limbs.
[0106] [0106] Although the specific modalities have been illustrated and described in this document, it will be observed by the elements versed in the technique that any provision, which is calculated to achieve the same purpose, can replace the specific modality shown. This application is intended to cover any adaptations or variations of the present invention. Therefore, it is obviously intended that this invention be limited only by the claims and their equivalents.

权利要求:
Claims (15)
[0001]
Rope claw CHARACTERIZED by the fact that it comprises: a housing (200) having an elongated member guide that forms an elongated member passage, the elongated member passage being configured and arranged to receive an elongated member; a locking cam (300) hingedly coupled to the housing (200), the locking cam (300) being configured and arranged to selectively engage an elongated member received in the elongated member passage; a cam induction member (132) positioned to provide a relatively light induction force on the locking cam (300) towards an elongated member received at the elongated member passage, the relatively light induction force being prevented by gravity during normal rope grab operations, to allow the rope grab to move both up and down on the elongated member, without the locking cam (300) locking on the elongated member during normal operations, while the inertia loads on the locking cam (300) and the light induction force of the cam inducing member, during a fall event, work together to rotate the locking cam (300) on the elongated member to lock the locking cam (300) on the elongated member in the passage of the elongated member; and a locking arm (400) hingedly coupled to the housing (200), the locking arm having a first end configured and arranged to be coupled to a user's safety harness and a second end configured and arranged to engage selectively locking the cam (300) to selectively lock the locking cam (300) on the elongated member in the passage of the elongated member during a fall event.
[0002]
Rope claw, according to claim 1, CHARACTERIZED by the fact that it additionally comprises: a swiveling side plate hingedly connected to the housing (200) to selectively block a lateral opening until the passage of an elongated member of the housing (200).
[0003]
Rope claw, according to claim 2, CHARACTERIZED by the fact that it additionally comprises: a fixed side plate coupled to the housing (200), the locking cam (300), the locking arm and the rotating side plate being positioned between the fixed side plate and the housing (200).
[0004]
Rope claw, according to claim 1, CHARACTERIZED by the fact that it additionally comprises: the locking cam (300) which has a radial edge that is configured and arranged to engage an elongated member, the radial edge having a curvature that varies in relation to a pivot connection to the housing (200), so that the radial edge engages each elongated member at a contact angle that is the same even when elongated members of different diameter are received at the elongated member passage of the housing (200).
[0005]
Rope claw, according to claim 1, CHARACTERIZED by the fact that it additionally comprises: a fixed side plate coupled to the housing (200), the locking cam (300), the locking arm and the rotating side plate being positioned between the fixed side plate and the housing (200); a spring spacer positioned between the locking arm and the fixed plate, the spacer having a spring retaining slot formed at one end of the spacer; and an arm spring having a first end part, a second end part and a curled part positioned between the first end part and the second end part, the curled part received around the spring spacer, the first part of end of the arm spring received in the spring retaining slot of the spring spacer, the first end part of the arm spring additionally engaging a part of the housing (200), the second end part of the spring of arm engages the locking arm to provide an inductive force on the locking arm.
[0006]
Rope claw, according to claim 5, CHARACTERIZED by the fact that the housing (200) includes a column with a cut-out section, the spring spacer having a central passage, the housing column (200) received in the central passage and the first end of the arm spring received in the cutout section of the column to engage the first end of the arm spring to the housing (200).
[0007]
Rope claw, according to claim 2, CHARACTERIZED by the fact that it additionally comprises: at least one cylinder coupled near one end of the rotating side plate, the at least one cylinder being configured to guide an elongated member through the elongated member passage.
[0008]
Rope claw, according to claim 2, CHARACTERIZED by the fact that it additionally comprises: a side plate spring coupled between the housing (200) and the rotating side plate to provide an inductive force on the rotating side plate.
[0009]
Rope claw, according to claim 2, CHARACTERIZED by the fact that it additionally comprises; at least one lever; a lever spring coupled between the housing (200) and at least one lever to provide an inductive force on the at least one lever; a locking member coupled to rotate in response to the rotation of at least one lever, the locking member being configured and arranged to selectively engage the rotating side plate to lock the rotating side plate in a static position in relation to the housing (200) to selectively block at least part of the side opening until the elongated passage; and a lock spring coupled between the housing (200) and the rotating side plate to provide an inductive force on the rotating side plate.
[0010]
Rope claw, according to claim 9, CHARACTERIZED by the fact that it additionally comprises: the lever that extends through a slot in the housing (200).
[0011]
Rope claw according to claim 1, CHARACTERIZED by the fact that the locking arm includes an energy-absorbing part configured and arranged to absorb energy during a fall event.
[0012]
Rope claw, according to claim 1, CHARACTERIZED by the fact that it additionally comprises: at least one bypass support configured and arranged to couple an elongated member to a support structure.
[0013]
Rope claw according to claim 12, CHARACTERIZED by the fact that the bypass support additionally comprises: a base support configured and arranged to be coupled to the support structure; a sleeve clamp coupled to the base support, the sleeve clamp including first and second spaced retaining ears facing away from each other; and a tubular sleeve having a central passage and first and second indentations spaced and positioned in an opposite manner formed on an external surface of the sleeve, the first and second retaining ears of the sleeve clamp being configured and arranged to selectively receive the respective first and second recesses positioned opposite the tubular sleeve.
[0014]
Method for handling a rope claw, the method CHARACTERIZED by the fact that it comprises: rotating a lever rotationally coupled to a housing (200) to release a rotating side plate with a user's hand; pulling back one end of the rotating side plate to pivot a part of the rotating side plate away from a side opening to an elongated member passage formed in the housing (200) with the user's hand; positioning the rope claw to receive an elongated member within the elongated member passage of the housing (200) with the user's hand; and releasing the pivoting side plate to allow the pivoting side plate to cover the side opening at least partially until the elongated limb passage of the housing (200) to retain the elongated limb with the elongated limb passage.
[0015]
Method, according to claim 14, CHARACTERIZED by the fact that it additionally comprises: rotating a lever rotationally coupled to a housing (200) to release a rotating side plate with a user's hand; pulling back one end of the rotating side plate to pivot a part of the rotating side plate away from a side opening to an elongated member passage formed in the housing (200) with the user's hand; removing the elongated member from the elongated member passage of the housing (200) with the user's hand; and release the rotating side plate to allow the rotating side plate to cover the side opening at least partially until the elongated member of the housing passes (200).

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同族专利:

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公开号 | 公开日

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US20140020988A1|2014-01-23|

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EP2877251B1|2020-01-22|

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AU2013292646A1|2015-01-22|

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SG11201500296WA|2015-02-27|

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RU2657412C2|2018-06-13|

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MX2015000802A|2015-05-08|

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WO2014015026A2|2014-01-23|

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US9168402B2|2015-10-27|

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CN105263584A|2016-01-20|

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JP2015531617A|2015-11-05|

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JP6426605B2|2018-11-21|

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BR112015001131A2|2017-06-27|

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CA2877993C|2020-08-25|

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CA2877993A1|2014-01-23|

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WO2014015026A3|2014-09-12|

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RU2014153262A|2016-09-10|

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CN105263584B|2019-04-02|

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EP2877251A2|2015-06-03|

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AU2013292646B2|2017-07-06|

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法律状态:
2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|

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2020-01-14| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|

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2021-03-02| B09A| Decision: intention to grant|

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2021-03-23| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 17/07/2013, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

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申请号 | 申请日 | 专利标题

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US13/551,845|2012-07-18|

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US13/551,845|US9132297B2|2012-07-18|2012-07-18|Rope grab|

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US13/891,871|US9168402B2|2012-07-18|2013-05-10|Rope grab|

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US13/891,871|2013-05-10|

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PCT/US2013/050868|WO2014015026A2|2012-07-18|2013-07-17|Rope grab|

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