• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    self-retracting lifeline. The present invention relates to a self-retracting lifeline comprising a barrel including a first and a second side operatively connected to a base. a rotor includes a receiving portion and is operatively connected to the base. a pawl is pivotally operatively connected to the rotor, and a biasing member is positioned between the rotor and the pawl to impose a biasing force on the pawl. a support member includes a cavity and a stop member extending into the cavity. the cavity is configured and arranged to receive the drum, the rotor, the pawl and the spring. the drum is rotatably connected operatively to the support member and the pawl is positioned proximate to the stop member. the tongue and the pressing member are held in place by the first side of the base, rotor and support member.
    公开号:BR112014009045B1
    申请号:R112014009045-9
    申请日:2012-10-26
    公开日:2021-06-29
    发明作者:Scott C. Casebolt
    申请人:D B Industries, Llc；
    IPC主号:
    专利说明:

    BACKGROUND OF THE INVENTION
    [001] Self-retracting lifelines are well known in the art of fall protection safety equipment for use by workers performing tasks during which there is a risk of a possible fall. Self-retracting lifelines generally include a housing containing a drum around which a lifeline, such as a rope, lanyard, or sling, is wound. The drum is spring-pressed to extend the lifeline as tension on the lifeline is applied and to retract the lifeline that has been unwound from the drum as the tension on the lifeline is reduced or released. The housing also includes a brake mount to stop drum rotation when the cable is suddenly unwound from the drum at a rate greater than a predetermined maximum rotational speed.
    [002] A self-retracting lifeline is typically connected to a support structure within the vicinity of the worker performing the task and to a safety belt worn by the worker. Depending on the type of task being performed, the housing or the end of the lifeline is connected to the support structure and the other of these is connected to the safety belt worn by the worker. The lifeline is easily extended from the self-retracting lifeline housing as the worker moves away from the device, and the lifeline is automatically retracted into the housing as the worker moves towards of the device. In the event of a fall, a brake member within the device, such as but not limited to a ratchet member or a stop member, will automatically be engaged by a centrifugal brake assembly, which will arrest the fall of the worker interrupting drum rotation when the lifeline is unwound from the drum at a rotation speed greater than a predetermined maximum rotation speed. As drum rotation is stopped, additional lifeline will be prevented from extending from the housing to arrest the worker's fall.
    [003] Therefore, a relatively small and light weight self-retracting lifeline that can be used alone or with a second self-retracting lifeline is desired.
    [004] For reasons mentioned above and for other reasons mentioned below, which will become apparent to those skilled in the art upon reading and understanding the present specification, there is a need in the art for an improved self-retracting lifeline. BRIEF SUMMARY OF THE INVENTION
    [005] The aforementioned problems associated with the above devices are addressed by the embodiments of the present invention and will be understood upon reading and understanding the present specification. The following summary is formed by way of example and not by way of limitation. It is merely provided to help the reader understand some aspects of the invention.
    [006] In one embodiment, a self-retracting lifeline comprises a drum, a rotor, and at least one pawl, at least one spring, and a support member. The drum includes a base to which a lifeline is operatively connected and first and second sides are operatively connected to opposite sides of the base. The rotor includes at least one receiving portion and is operatively connected to the base. At least one pawl is pivotally operatively connected to the rotor, and at least one biasing member is positioned between the rotor and at least one pawl to impose a biasing force on the at least one pawl. At least one pawl has an disengaged position and an engaged position. The support member includes a cavity and a stop member that extends into the cavity. The cavity is configured and arranged to receive the drum, the lifeline, the rotor, at least one pawl, and at least one spring. The drum is rotatably connected operatively to the support member and at least one pawl is positioned proximate to the stop member. At least one pawl and at least one biasing member are held in place by the first side of the base, rotor, and support member.
    [007] In one embodiment, a support member for use with a self-retracting lifeline comprises a first portion and a second portion operatively connected to the first portion. A first slit extends from the first portion to the second portion, and a second slit extends from the first portion to the second portion approximately parallel to the first slit. The first slit and the second slit form a stop member therebetween, and the stop member is bent to extend outwardly from the first portion and the second portion.
    [008] In one embodiment, a centrifugal brake assembly comprises at least one pawl including a base from which a circular portion and a triangular bulge extend and at least one pressing member. A rotor includes at least one receiving portion having a notched portion. The notched portion is configured and arranged to receive the circular portion. At least one pawl or the rotor has the split portion and the other of these has a bulge. The split portion is configured and arranged to receive the protrusion and at least one pressing member. At least one pawl is pivotable about the circular portion with respect to the rotor and the triangular portion of the at least one pawl is configured and arranged to engage a stop member when at least one pawl is in an engaged position. The base contacts the rotor in the engaged position to reinforce at least one pawl. BRIEF DESCRIPTION OF THE DRAWINGS
    [009] The present invention may be more easily understood, and additional advantages and uses thereof may be more readily apparent, when considered in view of the detailed description and the following Figures in which: Figure 1 is an exploded perspective view of a self-retracting lifeline constructed in accordance with the principles of the present invention; Figure 2 is a partial front cross-sectional view of the self-retracting lifeline shown in Figure 1 to show a centrifugal brake assembly; Figure 3 is a view in front partial cross-section of the self-retracting lifeline shown in Figure 1 to show a pawl of the centrifugal brake assembly shown in Figure 2 in an engaged position; and Figure 4 shows a self-retracting lifeline constructed in accordance with the principles of the present invention operatively connected to a safety belt.
    [0010] In accordance with common practice, the various features described are not drawn to scale, but are designed to emphasize specific features relevant to the present invention. Reference characters indicate similar elements throughout the Figures and in the text. DETAILED DESCRIPTION OF THE INVENTION
    [0011] In the following detailed description, reference is made to the accompanying drawings, which form a part thereof, and in which are shown, by way of illustration, embodiments in which the inventions may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, it being understood that other embodiments may be used and mechanical changes may be created without departing from the spirit and scope of the present invention. The following detailed description is, therefore, not assumed in a restrictive sense, and the scope of the present invention is defined only by the claims and their equivalents.
    [0012] As shown in Figures 1, 2 and 3, an embodiment of a self-retracting lifeline 100 includes a housing 101 which includes a first portion 102 and a second portion 112 defining a cavity 121 therebetween. The first portion 102 includes a plate portion 103 with an opening 105 near the center and sides 106 that extend approximately perpendicularly outward from the edges of the plate portion 103. A cover 104, which could be a product label including a variety of information, is configured and arranged to be operatively connected to plate portion 103 and covers opening 105. The upper right and left corners and center of the bottom include protrusions 107 extending outwardly from the portion. plate 103 parallel with the direction in which the sides 106 extend. Protrusions 107 include hook-shaped portions (not shown) near the distal ends. Proximate to one side of the protrusion 107 located near the center of the bottom, the side 106 includes a slit (not shown) and a cylindrical portion 110 is proximate to the protrusion 107 and the slit.
    [0013] The second portion 112 includes a plate portion 113 with an opening 115 near the center and sides 116 that extend approximately perpendicularly outward from the edges of the plate portion 113. A cover 114, which could be a product label including a variety of information, is configured and arranged to be operatively connected to the plate portion 113 and cover the opening 115. The upper right and left corners and the bottom center include receiving members 117 which are shaped and disposed. to receive the protrusions 107 of the first portion 102, and the hook-shaped portions near the distal ends of the protrusions 107 engage the receiving members 117 proximate the plate portion 113. As shown in Figure 1, next to a side of receiving member 117 located near the center of the bottom, side 116 includes a slot 116a and a cylindrical portion 120 is proximate to receiving member 117 and slot 116a. The inner surface of plate portion 113 includes cylindrical portions 118 near the top of opening 115 and flanges 119 near the sides of opening 115. Although not shown, first portion 102 includes similar cylindrical portions and flanges. The cylindrical portion 120 corresponds with the cylindrical portion of the first portion 102, and each end of a roller 122 is received by these cylindrical portions.
    [0014] A support 124 is generally inverted U-shaped and includes a top 131 that interconnects a first side 125 and a second side 128. It is recognized that any suitable support member could be used. The first side 125 includes an opening 127 near the center and openings 126 positioned above the opening 127. The second side 128 includes an opening 130 near the center and openings 129 positioned above the opening 130. The openings 127 and 130 correspond, and openings 126 and 129 correspond. Top 131 includes an opening 132 near the center. Near the junction of the first side 125 and the top 131, two generally parallel slits are cut which extend from the first side 125 to the top 131 and the portion between the two slits is bent inwardly to form a stop member 133. Stop member 133 preferably forms an angle generally of ninety degrees. Because both ends of the stop member 133 remain connected to the support 124, the stop member 133 is much stronger than if it were formed by a U-shaped slot or cut only connected at one end. In this way, the stop member 133 is reinforced and is less likely to be distorted when engaged by one of the pawls. It is recognized that the stop member could also be a separate piece of material operatively connected to the support 124.
    [0015] An anchor member 136 generally forms two ring portions with a first opening 137, which is larger, near the top, and a second opening 138, which is smaller, near the bottom. A connector 140 is configured and arranged to extend through the opening 132 in the top 131 of the bracket 124 and connects the anchor member 136 to the bracket 124. The connector 140 is generally U-shaped and includes a lower portion 145 that interconnects a first. side 141 and a second side 143. First side 141 includes an opening 142 near its distal end, and second side 143 includes a corresponding opening 144 near its distal end. The lower portion 145 is generally disk-shaped. A washer 146 is preferably positioned between the lower portion 145 and the support 124, and the first and second sides 141 and 143 extend through the opening 132 of the top of the support 131. The lower portion of the anchor member 136 is positioned between the first and second sides 141 and 143 so that opening 138 is aligned with openings 142 and 144, and a fastener 147 extends through openings 142, 138 and 144. Anchor member 136 extends outwardly from the top of the housing 101, and first opening 137 allows the self-retracting lifeline 100 to be connected to a support structure (not shown) by a hook (not shown) or other suitable fastener well known in the art.
    [0016] A drum 150, which resembles a spool, when assembled, includes a base 151 and plate members that are a first side 152 and a second side 153 operatively connected to opposite sides of the base 151. Preferably, the second side 153 is integral with base 151, as shown in Figure 1, but it is recognized that second side 153 could be a separate component similar to first side 152. Base 151 includes a cylindrical portion 150c that extends outwardly therefrom. with one hole 150b and preferably four smaller holes 150a positioned around the cylindrical portion 150c extending longitudinally through the base 151 and the second side 152 near the center. The first side 152 includes an opening 152b configured and arranged to receive the cylindrical portion 150c and four openings 152a corresponding with the holes 150a. A biasing member 159, such as a motor spring, includes an inner end 159a and an outer end 159b. A housing 159c is configured and arranged to receive biasing member 159 proximate one side of biasing member 159. Housing 159c generally includes a circular plate member with one side extending outwardly thereof to form a cavity in which the housing 159c pressing member 159 is received. The side includes a slit through which the outer end 159b extends. Inner end 159a is operatively connected to second side 153 by means well known in the art and housing 159c is operatively connected to support 124 by a rivet 134 or other means well known in the art. Because outer end 159b is operatively connected to housing 159c, which is operatively connected to support 124, outer end 159b is operatively connected to support 124 and is held in a generally stationary position with respect to support 124.
    [0017] A lifeline 155 includes a first end, a second end and an intermediate portion therebetween. Although the preferred embodiment uses a lanyard, it is recognized that a cable, tie-down or other suitable elongated member can be used as the lifeline. The first end of lifeline 155 is fixedly operatively connected by means well known in the art to base 151. The intermediate portion is wound and unwound from base 151 of drum 150, and sides 152 and 153 of drum 150 hold the lifeline at the base 151. The second end of the lifeline 155 extends through the housing 101 and is operatively connected to a fastening device, such as a carabiner 157. The lifeline 155 could also include a shock absorber 156 next to the carabiner 157.
    [0018] A centrifugal brake assembly includes a rotor 162, pawls 172 and 176, and springs 180 and 181. The rotor 162 is generally an oval-shaped disc or plate including two opposing receiving portions. The first receiving portion 165 includes a notched portion 166, which includes a semicircular portion, and a slotted portion 167. The second receiving portion 168 includes a notched portion 169, which includes a semicircular portion, and a slotted portion 170. An opening 163 near the center of rotor 162 is in alignment with opening 152b of first side 152 and is also configured and arranged to receive cylindrical portion 150c. Apertures 164 are disposed around aperture 163 in alignment with apertures 152a and apertures 150a. Aperture 163 and apertures 164 are disposed in a generally circular central portion of rotor 162. Receiving portions 165 and 168 extend outwardly from central portion of rotor 162 to form the generally oval-shaped disc.
    [0019] The first tab 172 includes a circular portion 173, a protrusion 174, and a triangular protrusion 175a, all projecting outward from a generally rectangular base portion 172a. Circular portion 173 projects outwardly near a first corner of base portion 172a. Protrusion 174 protrudes outwardly near the middle of one side near circular portion 173. A notched portion 175 is formed by base portion 172a and triangular protrusion 175a, which extends outwardly near a second corner adjacent the portion. circular 173 and close to an opposite side of the bulge 174.
    [0020] The first receiving portion 165 of the rotor 162 is configured and arranged to receive the first pawl 172 and a first spring 180. The notched portion 166 receives the circular portion 173 and the slotted portion 167 receives the first spring 180 and the protrusion 174. The notched portion 166 is configured and arranged to allow the first pawl 172 to pivot about the circular portion 173. It is recognized that the slotted portion of the motor and the pawl boss could be reversed so that the pawl includes a slotted portion configured and arranged to receive the first spring and the rotor protrusion.
    [0021] The second tab 176 includes a circular portion 177, a protrusion 178, and a triangular protrusion 179a, all projecting outward from a generally rectangular base portion 176a. Circular portion 177 projects outwardly near a first corner of base portion 176a. Protrusion 178 protrudes outwardly near the middle of one side near circular portion 177. A notched portion 179 is formed by base portion 176a and triangular protrusion 179a, which extends outwardly near a second corner adjacent the portion. circular 177 and close to the opposite side of the bulge 178.
    The second receiving portion 168 of the rotor 162 is configured and arranged to receive the second pawl 176 and a second spring 181. The notched portion 169 receives the circular portion 177 and the slotted portion 170 receives the second spring 181 and protrusion 178 The notched portion 169 is configured and arranged to allow the second pawl 176 to pivot about the circular portion 177. It is recognized that the slotted portion of the rotor and the protrusion of the pawl could be reversed so that the pawl includes a slotted portion shaped and arranged to receive the first spring and the rotor protrusion.
    [0023] To assemble the self-retracting lifeline, the lifeline 155 is operatively connected to the base 151 of the drum and the opening 152b of the first side 152 receives the cylindrical portion 150c. The openings 152a and first side 152 correspond with the holes 150a of the drum 150. The rotor 162 includes the opening 163 configured and arranged to receive the cylindrical portion 150c and four openings 164 corresponding with the openings 152a and the holes 150a. The holes 150a, the openings 152a, the openings 164 are spaced approximately evenly around the hole 150b of the drum 150, the opening 152b of the rotor 162, and the opening 163 of the rotor, respectively, and are configured and arranged to receive. Read the fasteners 154. The pawls 172 and 176 and the springs 180 and 181 are positioned in the respective receiving positions 165 and 168. The drum 150, the lifeline 155, the motor spring 159, and the brake assembly Centrifugal are configured and arranged to fit between the first and second sides 125 and 128 of the support 124 so that the hole 150b corresponds with the openings 127 and 130. The anchor member 136 is operatively connected to the support 124, as previously described. Tongues 172 and 176 are positioned proximate to first side 125. A shaft 184 is inserted through opening 127, hole 150b, and opening 130 to connect these components.
    [0024] The support 124 together with the components therein and the roller 122 are then positioned between the first portion 102 and the second portion 112 of the housing 101. The openings 126 of the first side 125 are configured and arranged to receive the cylindrical portions ( not shown) of the first portion 102, and the openings 129 of the second side 128 are configured and arranged to receive the cylindrical portions 118 of the second portion 112. The receiving members 117 of the second portion 112 receive the protrusions 107 of the first portion 102, and the hook-like portions at the distal ends of the protrusions engage the receiving members 117 to operatively connect the first and second portions 102 and 112 of the housing 101. The openings 127 and 130 of the first and second sides 125 and 128 of the support and hole 150b of drum 150 aligns with openings 105 and 115 of first and second housing portions 102 and 112, and an axle 184 is configured and disposed. and to extend therethrough so that drum 150 is rotatably operatively connected to support 124 and housing 101. Motor spring 159, which is operatively connected to drum 150 and support member 124, as previously described, imposes a pressing force on the drum 150 so that the lifeline 155 is wound around the drum 150 when the tension on the lifeline 155 is released. The lifeline 155 extends through the slits in the first and second portions 102 and 112 and the roller 122 aids in reducing wear on the lifeline 155 as it is extended from the housing 101 and retracted thereto.
    The pawls 172 and 176 and the springs 180 and 181 are held in place by the first side 152 of the drum 150, the rotor 162, and the first side 125 of the support 124. In other words, the notched portions 166 and 169, slotted portions 167 and 170, first side 152 of drum 150, and first side 125 of support 124 form cavities or confinement areas within which pawls 172 and 176 and springs 180 and 181 are disposed.
    [0026] In operation, the housing 101 of the self-retracting lifeline 100 is operatively connected to a support structure via the anchor member 136, and the lifeline 155 is operatively connected to a safety belt worn by a worker. via the carabiner 157. The worker is free to move around the proximities of the self-retracting lifeline 100, with only the length of the lifeline 155 restricting the distance of the worker's movement. As the worker moves away from the self-retracting lifeline 100, the lifeline 155 is extended from the housing 101 as it is unwound from the drum 150. As the worker moves closer to the self-retracting lifeline 100, lifeline 155 is retracted into housing 101 as it is wound around drum 150 due to the pressing force exerted on drum 150 by motor spring 159.
    [0027] In the event of a fall, sudden acceleration or the high rate of velocity at which drum 150 rotates to extend lifeline 155 causes pawls 172 and 176 to overcome the force of springs 180 and 181. Centrifugal force causes pawls 172 and 176 to pivot around circular portions 173 and 177 and protrusions 174 and 178 compress springs 180 and 181. As drum 150 rotates and pawls 172 and 176 move. from an disengaged position 190 to an engaged position 191, one of the pawls 172 and 176 will engage the stop member 133 of the bracket 124. The notched portions 175 and 179 of the pawls 172 and 176 are configured and arranged to engage the stop member 133. In addition, the protrusions 174 and 178 are positioned within the slotted portions 167 and 170 and the bases 172a and 176a of the pawls 172 and 176 contact the rotor 162, which reinforces the pawl that engages the stop member 133 . The first and second pawls 172 and 176 are each shown in an disengaged position 190 in Figure 2, and second pawl 176 is shown in an engaged position 191 in Figure 3. When the lifeline 155 is unwound from the drum 150 at a speed rotation greater than a predetermined maximum rotational speed, both pawls 172 and 176 pivot to the engaged positions. After the fall is arrested, the pawl that is not engaging the stop member 133 will be returned to the disengaged position due to the biasing force of the biasing member 159. Engagement of the stop member 133 by one of the pawls 172 and 176 prevents that the rotation of the drum 150 and therefore prevents the additional lifeline 155 from being extended from the housing 101. Once one of the pawls 172 and 176 has engaged the stop member 133, it cannot be disengaged until the drum 150 begin to rotate backwards to rewind lifeline 155 over drum 150. Shock absorber 156 is used to absorb energy and reduce the amount of force exerted on the worker from the fall.
    [0028] During use, but not during a fall, the first spring 180 imposes a pressing force on the first pawl 172 so that the triangular protrusion 175a contacts the rotor 162 and the second spring 181 imposes a pressing force on second pawl 176 so that triangular protrusion 179a contacts rotor 162. During a fall or when drum 150 rotates at a predetermined speed, the pressing forces of the first and second springs 180 and 181 are overcome, the first and second tongues 172 and 176 pivot in the direction of the respective slotted portions 167 and 170, and the protrusions 174 and 178 compress the respective first and second springs 180 and 181.
    [0029] One of the advantages of the present invention is the ease of fabrication and assembly of the self-retracting lifeline 100. In prior art self-retracting lifelines, the pawls include pins around which the pawls pivot and the pawls are fixedly connected to the springs, which are fixedly connected to another component. The present invention does not include pins in the pawls or fixedly connecting the springs to any component. Tongues 172 and 176 and springs 180 and 181 are simply placed within the appropriate spaces or cavities formed by first side 152 of drum 150, rotor 62, and first side 125 of support 124.
    [0030] The first side 152 of the drum 150, the rotor 162, and the first side 125 of the support 124 form a casing that defines boundaries of a confinement cavity, where the pawls 172 and 176 and the springs 180 and 181 are held in place from movement in a first direction by a front stop (first side 125) and a back stop (first side 152). Detents 172 and 176 are held in place of movement in a second direction generally perpendicular to the first direction by rotor 162. Springs 180 and 181 are held in place of movement in the second direction by rotor 162 and respective lugs 174 and 178 of the pawls. 172 and 176. Tabs 172 and 176 and springs 180 and 181 are held in place by the confines of the confinement cavity. Therefore, pawls 172 and 176 and springs 180 and 181 do not need any interconnections, such as pins or other fixed connections well known in the art.
    [0031] Figure 4 shows the self-retracting lifeline 100 operatively connected to a network by means well known in the art.
    [0032] It is recognized that the centrifugal brake assembly, including rotor 162, pawls 172 and 176, and springs 180 and 181, of the present invention is not limited to use with the self-retracting lifeline of preferred embodiment 100 and can be used with any other suitable self-retracting lifeline or controlled descent device well known in the art.
    [0033] The above specification, examples, and data provide a complete description of the manufacture and use of the composition of embodiments of the invention. Although specific embodiments have been illustrated and described herein, it will be appreciated by those skilled in the art that any arrangement, which is calculated to achieve the same purpose, can be substituted for the specific embodiment shown. This application is intended to cover any adaptations or variations of the invention. Therefore, it is clearly intended that this invention be limited only by the claims and their equivalents.
    权利要求:
    Claims (11)
    [0001]
    1. Self-retracting lifeline CHARACTERIZED by the fact that it comprises: a drum (150) including a base (151) to which a lifeline (155) is operatively connected and a first and second side (152, 153) operatively connected to opposite sides of the base; a rotor (162) including at least one receiving portion (165, 168) and operatively connected to the drum (150); at least one pressing member (180, 181); (172, 176) being pivotally operatively connected to the rotor (162) near at least one receiving portion (165, 168), to at least one pawl (172, 176) having a rectangular base (172a, 176a), a portion circular (173, 177) and a protrusion member (174, 178), the circular portion (173, 177) extending outwardly from a first corner of the rectangular base (172a, 176a), the protrusion member (174 , 178) extending outwardly from a first side of the rectangular base (172a, 176a) near portion ci rcular (173, 177), the at least one biasing member (180, 181) being positioned between the rotor (162) and the protrusion member (174, 178) of the at least one pawl to impose a biasing force on the at least one pawl, the at least one pawl having an disengaged position and an engaged position; and a support member (124) including a cavity and a stop member (133) extending into the cavity, the cavity configured and arranged to receive the drum (150), the lifeline (155), the rotor (162). ), the at least one pawl (172, 176), and at least one biasing member (180, 181), the drum being rotatably operatively connected to the support member and the at least one pawl being positioned proximate to the stop member ( 133), the at least one pawl and the at least one pressing member being held in place by the first side of the base, the rotor and the support member.
    [0002]
    2. Self-retracting lifeline according to claim 1, CA-RACTERIZED by the fact that the drum (150) includes a cylindrical portion (150c) that extends longitudinally outwardly thereof and the rotor (162) includes an opening rotor (163) configured and arranged to receive the cylindrical portion.
    [0003]
    3. Self-retracting lifeline according to claim 1, CA-RACTERIZED by the fact that the rotor (162) includes first and second receiving portions (165, 168) near opposite ends of the rotor, the first portion receiving (165) configured and arranged to receive a first pawl (172) and a first spring (180), the second receiving portion (168) configured and arranged to receive a second pawl (176) and a second spring (181) .
    [0004]
    4. Self-retracting lifeline according to claim 1, characterized by the fact that the at least one receiving portion (165, 168) includes a notched portion (166, 169) and a slotted portion (167, 170 ) and wherein the at least one tongue (172, 176) includes a triangular protrusion (175a, 179a), the notched portion being shaped and arranged to receive the circular portion (173, 177), the slotted portion being shaped and arranged to receiving the protrusion member (174, 178) and the at least one biasing member (180, 181), and the triangular protrusion (175a, 179a) being configured and arranged to engage the stop member (133) when the at least one pawl (172, 176) is in the engaged position.
    [0005]
    5. Self-retracting lifeline according to claim 1, CA-RACTERIZED by the fact that the at least one pawl (172, 176) includes a base portion (172a, 176a) that contacts the rotor (162 ) when the at least one pawl is in the engaged position.
    [0006]
    6. Self-retracting lifeline according to claim 1, CHARACTERIZED by the fact that it additionally comprises a drum pressing member (159) that interconnects the drum (150) and the support member (124), thus imposing a force of pressing on the drum to wrap the lifeline (155) around the drum when the tension is released from the lifeline.
    [0007]
    7. Self-retracting lifeline according to claim 1, characterized by the fact that it additionally comprises a housing (101) configured and arranged to receive the support member (124).
    [0008]
    8. Self-retracting lifeline according to claim 7, CA-RACTERIZED by the fact that it additionally comprises a drum pressing member (159) that interconnects the drum (150) and the housing, thus imposing a force of pressing on the drum to wrap the lifeline (155) around the drum when the tension is released from the lifeline.
    [0009]
    9. Self-retracting lifeline according to claim 1, CA-RACTERIZED by the fact that the support (124) includes a first portion (125, 128) operatively connected to a second portion (131) and a first slot parallel to a second slot, the first and second slots extending from the first portion to the second portion and forming the stop member (133), the stop member being bent to extend outwardly from the first and second portions.
    [0010]
    10. Centrifugal Brake Assembly CHARACTERIZED by the fact that it comprises: at least one tongue (172, 176) including a rectangular base (172a, 176a) from which a circular portion (173, 177), a protrusion member (174, 178) and a triangular protrusion (175a, 179a) extend, the circular portion (173, 177) extending outwardly from a first corner of the rectangular base (172a, 176a), the protrusion member (174 , 178) extending outward from a first side of the rectangular base near the circular portion, the triangular bulge extending outward from a second corner and a second side of the rectangular base, the second side being opposite the first side of the rectangular base; at least one biasing member (180, 181); a rotor (162) including at least one receiving portion (165, 168) having a notched portion (166, 169) that is configured and arranged to receive the circular portion (173, 177) and a split portion (167, 170) confi secured and arranged to receive the protrusion member (174, 178) and the at least one biasing member (180, 181); wherein the at least one tongue (172, 176) is pivotable about the circular portion (173, 177) with respect to the rotor (162) and the triangular protrusion (175a, 179a) of the at least one pawl is configured and arranged to engage a stop member (133) when the at least one pawl is in an engaged position, the base rectangular (172a, 176a) in contact with the rotor (162) in the engaged position to reinforce the at least one pawl.
    [0011]
    11. Centrifugal brake assembly, according to claim 10, CHARACTERIZED by the fact that the at least one pressing member (180, 181) presses the at least one pawl (172, 176) in a disengaged position and the at least one pawl compresses the at least one pressing member and moves into the engaged position when the rotor exceeds a predetermined maximum rotational speed.
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    CN106139431A|2016-11-23|
    US9488235B2|2016-11-08|
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    法律状态:
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-12-31| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-03-09| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]|
    2021-06-01| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-06-29| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 26/10/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201161552530P| true| 2011-10-28|2011-10-28|
    US61/552,530|2011-10-28|
    US13/660,262|2012-10-25|
    US13/660,262|US9121462B2|2011-10-28|2012-10-25|Self-retracting lifeline|
    PCT/US2012/062153|WO2013063414A2|2011-10-28|2012-10-26|Self-retracting lifeline|
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