巴西专利BR112014007379B1 chisel tip

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专利摘要:
SCARIFIER TIP. A chisel tip includes a front end, a rear end and a mounting cavity extending at the rear end. The scarifier tip further includes an upper surface extending between the front end and the rear end, where a portion of the upper surface at the rear end of the scarifier tip includes a groove projecting upwards having groove sides and an upper part. groove that extends at the rear at the chisel tip.
公开号:BR112014007379B1
申请号:R112014007379-1
申请日:2012-09-28
公开日:2021-01-19
发明作者:Emily J. Rivera；Clifford O. Jeske；Murray A. Smith；Craig Harder
申请人:Caterpillar Inc.；
IPC主号:

专利说明:

Description of the invention Technical Field
[0001] The present disclosure relates to soil engagement tools, and more specifically, to a chisel tip for a chisel rod assembly. History of the Invention
[0002] In the operation of soil engagement machinery, especially of the type known as track-type tractors, it is a common practice to position a mechanism in the machine that will penetrate the resistant material and release it to assist in its removal. This mechanism is commonly referred to as a scarifier rod assembly. Typical scarifier rod assemblies include one or more main beam members, termed as scarifier rods, which are mounted within a frame which is raised and lowered under energy to engage and penetrate the terrain. The scarifier is then moved through the terrain as the machine is energized in a forward direction.
[0003] Such scarifier assemblies typically employ replaceable tips and shank protectors at the end of the scarifier shank which is lowered in the formation of earth. The chisel tip and stem protectors that come into contact with the earth are subjected to vigorous abrasion during the chiseling operation. For this reason, replaceable scarifier tips and stem protectors are provided so that the stem does not have to be replaced as often.
[0004] Such a scarifier rod assembly is disclosed in U.S. Patent No. 3,999,614 to Rhoads (the "614 patent"). The chisel stem assembly of the '614 patent includes a chisel tip provided with a socket for receiving a lower end of a chisel stem. A stem guard / protector includes a hitch arrangement including a hook adapted to engage a recess or slit formed in a raised portion of the upper surface of the chisel tip.
[0005] The rod guard / protector is also adapted to rotate around a ledge adjacent to the recess until it is fully received on the chisel rod. The rod guard / protector is then held in a position locked by a pin or screw. Summary of the invention
[0006] A disclosed configuration refers to a chisel tip that includes a front end, a rear end and a mounting cavity extending at the rear end. The scarifier tip further includes an upper surface extending between the front end and the rear end, where a portion of the upper surface at the rear end of the scarifier tip includes a groove projecting upwards having the groove sides and a part groove that extends at the rear at the chisel tip.
[0007] This disclosure further refers to a scarifier tip including a front end, a rear end and a mounting cavity extending at the rear end. In addition, the scarifier tip includes an upper surface, the upper surface including a first groove and a second groove disposed between the first groove and the front end of the scarifier tip, the second groove being flanked by a pair of depressions on the upper surface .
[0008] Furthermore, this disclosure refers to a scarifier tip including a front end, a rear end and a mounting cavity extending at the rear end. The scarifier tip further includes an upper surface, the upper surface including a first groove, the first groove having the groove sides and an upper groove that extends at the rear to a rear end surface of the scarifier tip, where the the upper groove slopes upward as it extends at the rear and the groove sides slope away from each other as they extend away from the upper groove. An end surface of the rear end of the scarifier tip has a maximum thickness between the mounting cavity and the top groove. Brief description of the drawings
[0009] Figure 1 is a side view of a scarifier rod assembly in accordance with the present disclosure;
[0010] Figure 2 is a front perspective view of a scarifier tip of the scarifier stem assembly of Figure 1;
[0011] Figure 3 is a rear perspective view of the scarifier tip of Figure 2;
[0012] Figure 4 is a rear end view of the scarifier tip of Figure 2;
[0013] Figure 5 is a partial top view of the rod assembly
[0014] of The scarifier Figure 6 is one of Figure 1; top perspective view of a scarifier stem protector from the assembly in Figure 1;
[0015] Figures 7 and 8 are bottom perspective views of the rod protector in Figure 6;
[0016] Figure 9 is a top view of the rod protector in Figure 6;
[0017] Figure 10 is a front end view of the rod protector in Figure 6;
[0018] Figure 11 is a rear end view of the rod protector in Figure 6;
[0019] Figure 12 is a perspective view of a scarifier stem from the scarifier stem assembly of Figure 1;
[0020] Figure 13 is a side view of the scarifier rod and stem protector during assembly;
[0021] Figure 14A is a perspective view of a sleeve of a rotary latch assembly of the scarifier shank assembly of Figure 1;
[0022] Figure 14B is a perspective view of a latch of the rotating latch assembly; and
[0023] Figure 14C is a rear view of the lock in Figure 14B. Description of settings
[0024] Figures 1-14C illustrate a configuration of a chisel rod assembly 10 and its components in accordance with the present disclosure. The chisel rod assembly 10 can be used on several types of machines. For example, the chisel rod assembly 10 can be mounted on the rear of a tractor, grader or any other type of mobile machine. The chisel rod assembly 10 may have a base end 12 that attaches to a movable machine. From the base end 12, the chisel stem assembly can extend downwardly and forward to a front end 14 of the chisel stem assembly 10. When mounted on such mobile machines, the chisel stem assembly 10 can be used to cultivate the soil by lowering its front end 14 into the soil and driving it forward through the soil.
[0025] As best shown in Figure 1, the scarifier rod assembly 10 can include a scarifier rod 16, a scarifier tip 18 and a scarifier rod protector 20. The scarifier rod 16 can serve as the member primary structural or “backbone” of scarifier stem assembly 10. Scarifier tip 18 and scarifier stem protector 20 can serve to protect the front portions of scarifier stem 16 from direct contact with the ground.
[0026] Figure 12 shows the chisel stem 16 separated from the chisel tip 18 and chisel stem protector 20. As the chisel stem assembly 10 generally, the chisel stem 16 can extend from the end base 12 downward and forward to a front end 22. The chisel rod 16 may include a straight top portion 24 extending downwardly, a middle portion 26 that curves toward a straight portion, and a front portion 28 which stretches mostly straight and forward. The front portion 28 can decrease in height as it extends to the front end 22. A front edge 30 of the chisel stem 16 can extend along the top portion 24, the middle portion 26 and the front portion 28 to the front end 22. The stem scarifier 16 can be constructed of various materials, including, but not limited to, steel and cast iron.
[0027] The scarifier stem 16 can have several features that facilitate the attachment of the scarifier tip 18 and scarifier stem protector 20 to the scarifier stem 16. For example, in the configuration shown in the drawings, the scarifier stem 16 includes the holes 32, 34, 36 to receive mounting projections 38, 40, 42 for attaching the chisel tip 18 and chisel rod protector 20. Holes 32, 34 and 36 can be included in the upper portion 24, middle portion 26 and front portion 28, respectively, of the chisel rod 16. The projections 38, 40, 42 can have different configurations. In some configurations, the projections 38, 40, 42 may be pins extending on both sides of the chisel rod 16, and having substantially circular cross sections (which may vary in diameter over the length of the pins).
[0028] The scarifier tip 18 can be mounted on the front end 22 of the scarifier stem 16. Figures 2-4 show the scarifier tip 18 separated from the scarifier stem 16 and scarifier stem protector 20. The tip of the scarifier scarifier 18 can include a front end 44 and a rear end 46. Extending between front end 44 and the rear end 46, the scarifier tip 18 can include an upper surface 48, side surfaces 50, 52 and a lower surface 54. The front end 44 of the chisel tip 18 can form a point. Thus, as they extend from the rear end 46 towards the front end 44, upper surface 48, side surfaces 50, 52 and / or lower surface 54 can taper vertically and / or horizontally. The chisel tip 18 can be constructed of a variety of materials, including, but not limited to, steel and cast iron.
[0029] As best shown in Figures 3 and 4, the chisel tip 18 may include a mounting cavity 56 extending inwardly from the rear end 46. The mounting cavity 56 may be shaped to receive and combine with the front portion 28 of the scarifier stem 16. Correspondingly, the scarifier tip 18 can be mounted on the scarifier stem 16 by placing the front portion 28 of the scarifier stem 16 in the mounting cavity 56 of the scarifier tip. 18 and fix the chisel tip 18 in place. Figure 1 shows the chisel tip 18 mounted on the front portion 28 of the chisel rod 16.
[0030] The scarifier tip 18 and scarifier stem assembly 10 may include several provisions for attaching the scarifier tip 18 to the scarifier stem 16. In some configurations, the scarifier stem assembly 10 may include provisions for securing the tip of scarifier 18 to the projection 42 extending from the hole 36 in the front portion 28 of the scarifier stem 16. For example, as best shown in Figure 3, the scarifier tip 18 may include a lock cavity 58 and a slot 60 arranged adjacent to the mounting cavity 56. The locking cavity 58 can be configured to receive a rotary locking assembly 62 (shown in detail in Figures 14A-14C) operable to selectively lock the chisel tip 18 to the projection 42. Slit 60 can provide a path through which the projection 42 can slide into the lock cavity 58 and the lock 62 when the chisel tip 18 is slid into place at the front portion 28 of the ha chisel 16. The lock cavity 58 can be positioned so that it substantially aligns with the projection 42 when the chisel tip 18 is properly positioned at the front portion 28 of the chisel rod 16. A lock opening 63 can be extend from the side surface 50 in the lock cavity 58 to provide access to manipulate the lock 62 between the locked and unlocked positions.
[0031] To accommodate the locking cavity 58, the side surface 50 can include a protrusion 64. As shown in Figure 2, the projection 64 can itself include a side surface 66, an upper surface 68 and a lower surface 70. At least a portion of the side surface 66 can tilt inward as it extends forward. The upper surface 68 and the lower surface 70 can tilt towards each other as they extend forward, converging at the forward end of the protrusion 64. Additionally, the upper surface 68 and the lower surface 70 can tilt away from each other as they extend laterally away from the side surface 66.
[0032] Adjacent to the side surface 52, the chisel tip 18 may have a lock cavity 72, a slot 74, a lock opening 75 and a protrusion 76 substantially the same as the lock cavity 58, slot 60, opening of lock 63 and protrusion 64. The discussion in this disclosure of the lock cavity 58, slot 60, lock opening 63 and protrusion 64 adjacent to the side surface 50 also applies to the same elements adjacent to the side surface 52 of the chisel tip 18.
[0033] In addition to the protrusions 64, 76, the chisel tip 18 may include several other features on its outer surfaces. For example, adjacent to the rear end 46, the upper surface 48 may include a groove projecting upwards 78. The groove 78 can extend longitudinally on the upper surface 48. The groove 78 can be substantially centered on the chisel tip 18 in the directions side. Groove 78 can include a groove top 80 and groove sides 82, 84. From a front end 86 of groove 78, the groove top and groove sides 82, 84 can extend towards the rear end of the chisel tip 18. The front end 86 and a rear end 88 of the groove 78 can be located at various points along the chisel tip 18. As shown in the drawings, in some configurations, the front end 86 of the groove 78 may be arranged on one half of the rear end of the chisel tip 18, and the rear end 88 of the groove 78 may coincide with a rear end surface of the rear end 46 of the chisel tip 18.
[0034] Groove 78 can have a wedge shape, both on the side and on top. As it extends at the rear, groove 78 can tilt upward. As shown in Figure 4, the rear end surface of the chisel tip 18 has a maximum thickness (t) between the mounting cavity 56 and the top groove 80 (ie, a thickness greater than the thickness from the cavity mounting brackets 56 to the side and bottom surfaces 50, 52, 54 on the rear end surface of the chisel tip 18). Groove sides 82, 84 can tilt from each other as they extend away from the top of groove 80. Additionally, groove sides 82, 84 can tilt away from each other as they extend at the rear. The groove upper part 80 and groove sides 82, 84 can have different shapes. As shown in the figures, in some configurations, the groove top 80 and groove sides 82, 84 can be substantially flat in shape. Alternatively, the groove top 80 and / or groove sides 82, 84 can include one or more concave and / or convex portions.
[0035] Adjacent to the base of the groove sides 82, 84, the upper surface 48 of the chisel tip 18 may include the shoulders 90, 92. The shoulders 90, 92 can have different shapes. In some configurations, the lugs 90, 92 can be substantially flat. Alternatively, the shoulders 90, 92 may have one or more convex and / or concave portions. The lugs 90, 92 can extend over the total length of the groove 78 to the rear end 46 of the chisel tip 18. Alternatively, the lugs 90, 92 can extend over only part of the length of the groove 78.
[0036] The chisel tip 18 can also include a groove 94 disposed between the groove 78 and the front end 44 of the chisel tip 44. Like the groove 78, the groove 94 can extend longitudinally, and can be substantially centered from lateral shape at the chisel tip 18. Instead of projecting upward from the upper surface 48, the groove 94 can be flanked by depressions 96, 98 on the upper surface 48. In some configurations, the upper part of the groove 94 can be substantially washed with the upper surface portions 48 ahead and at the rear of the groove 94. In fact, in some configurations, the upper part of the groove 94 can be substantially coplanar with the shoulders 90, 92 flanking the groove 78.
[0037] The scarifier tip 18 may also have an eye 99 mounted on the upper surface 48. The eye 99 may allow the attachment of a lifting mechanism to the scarifier tip 18 to facilitate maneuvering of the scarifier tip 18. The eye 99 can be attached between groove 78 and groove 94.
[0038] As shown in Figure 1, the scarifier stem protector 20 can be configured to mount on the scarifier stem 16 behind and above the scarifier tip 18. Figures 6-11 show the scarifier stem protector 20 from from different angles. The scarifier rod protector 20 can have a body 100 with a front end 102 and a rear end 104. Body 100 can include sides 106, 108 and a center face 110 extending between sides 106, 108. As best shown in Figures 7, 8, 10 and 11, a mounting cavity 112 can be arranged between sides 106, 108 adjacent to a underside of the central face 110. Mounting cavity 112 can be configured to receive and combine with the front edge 30 of the chisel rod 16. The chisel rod protector 20 can be constructed of various materials, including, but not limited to, steel and cast iron.
[0039] The scarifier stem protector 20 can include several provisions for attaching it to the scarifier stem 16. In some configurations, the scarifier stem protector can mounts 114 and 116 on the 106 side, and mounts 118 and 120 on the side 108. Assembly 114 may include an open end slit 122 configured to receive an end of the projection 40 extending from hole 34 in the chisel rod 16. Slit 122 can generally extend away from the central face 110 of the scarifier stem protector 20. The edges of the slit 122 may taper away from the other as they extend outward. An inner end of the slot 122 may be substantially round in shape. For example, the inner end of slot 122 may have a constant radius of curvature substantially the same as the radius of curvature of the projection portion 40 that slot 122 engages. Assembly 118 may have a slot 124 configured to engage an end of the projection 40 opposite the one that slot 122 engages. The slot 124 can be aligned and have substantially the same shape as the slot 122.
[0040] As best understood by reference to Figure 13, the slits 122, 124 allow the slides 114, 118 to slide in engagement with the projection 40 extending on each side of the chisel rod 16. For this purpose, the rod protector ripper 20 can be lifted above the ripper rod 16 and maneuvered to a position where the slots 122 are usually arranged above the opposite ends of the projection 40. Then, the ripper rod protector 20 can be lowered while guiding the open ends of the slits 122, 124 on the ends of the projection 40. The tapered surfaces of the outer ends of the slits 122, 124 can help guide the slits 122, 124 in alignment with the projection 40. As soon as the slits 122, 124 are aligned with the projection 40, the scarifier rod protector 20 can be lowered until the projection 40 rests on the inner ends of the slits 122, 124. In this state, the surface substantially and round at the inner end of each slot 122, 124 can rest on the corresponding round surface of the projection 40. This allows a rotation of the scarifier rod protector 20 over the projection 40 in proper engagement with the front edge 30 of the scarifier rod 16. Such a turn is illustrated by the arrow in Figure 13.
[0041] Assemblies 116 and 120 can include features that engage projection 38 as scarifier rod protector 20 is rotated that way in projection 40. For example, as best shown in Figure 8, assembly 116 can include a slit 126 on an internal surface of side 106. Slit 126 can be spaced from assembly 114 by substantially the same distance as projection 38 is spaced from projection 40. Correspondingly, as the chisel rod protector 20 is rotated at the location on projection 40, slot 126 substantially aligns with projection 38. Thus, as indicated on the dotted lines in Figure 13, slot 126 extends substantially perpendicular to a line extending between the projection receiving the portions of assembly 116 and assembly 114. Correspondingly, slit 126 slides over projection 40 while the scarifier rod protector 20 is rotated in place.
[0042] As best shown in Figure 7, assembly 120 of stem protector 20 may include a slot 128 to receive an end of the projection 38 opposite the end received by slot 126. Similar to slot 126, slot 128 can be spaced at from assembly 118 by substantially the same distance as projection 38 is spaced from projection 40. Thus, slot 128 extends in the same direction as slot 126, ie, substantially perpendicular to a line extending between the projection receiving the portions of assembly 120 and assembly 118. Correspondingly, when the scarifier rod protector 20 is rotated over projection 40, slot 128 slides into place over projection 38. An inner end of slot 128 may include a round surface that rests on the 38 projection.
[0043] Returning to Figure 8, assembly 116 can include a lock cavity 130 at the inner end of slot 126. Lock cavity 130 can be configured to receive a rotary lock assembly 62 (shown in detail in Figures 14A-14C ) configured to selectively lock into projection 38. A lock opening 134 can extend across side 106 of the scarifier rod protector 20 to allow locking assembly 62 to lock and unlock it. The lock cavity 130 and lock assembly can have substantially the same configuration as the lock cavity 58 and lock assembly 62 of the chisel tip 18, so that the lock assembly 62 can be used interchangeably between the shank 120 and the chisel tip 18.
[0044] To accommodate latch cavity 130 and latch assembly 62, the outer surface of side 106 may include a projection 136. The projection 136 can be elongated. The direction in which the projection 136 is elongated may differ from the direction in which the slit 126 extends. This is best observed with reference to Figure 7 and remembering that the slit 126 extends in the same direction as the slit 128. Thus, comparing the direction that the projection 136 is elongated to the direction that the slit 128 extends, shows that the projection 136 is elongated in a significantly different direction than the direction in which slit 126 extends. Whereas the slot 126 extends generally towards the central face 110 of the scarifier shank protector 20, the protrusion 136 is elongated in a direction generally to the front end 102 of the scarifier shank 20. Additionally, the protrusion 136 can taper inward as it extends toward the front end 102 of the scarifier rod protector 20.
[0045] As best shown in Figures 1, 5, 6, 9 and 10, the scarifier rod protector 20 can include a groove 138 projecting upwardly from the central face 110. Groove 138 can extend longitudinally along the central face 110. In some configurations, the groove 138 can extend over the entire length of the central face 110. Alternatively, the groove 138 can extend over only a portion of the length of the central face 110. As best shown in Figures 1, 5, 9 and 10, groove 138 can have an upper part 140 and sides 142, 144. Groove 138 can have several lateral cross-sectional shapes. As best shown in Figure 10, in some configurations, the sides 142, 144 of the groove 138 can tilt away from each other as they extend away from the top 140.
[0046] Groove 138 can be positioned in different ways laterally. In some configurations, the groove 138 can be laterally aligned with the groove 78 of the chisel tip 18. For example, as best shown in Figure 5, in some configurations, both grooves 78 and 138 can be laterally centered.
[0047] Groove 138 can have several longitudinal profiles. As best shown in Figures 1, 6 and 13, the height or thickness of the groove 138 (from the center face surface 110 in combination with the chisel rod 16) can vary over the length of the groove 138. In some configurations, the portion the front of the groove 138 can tilt up to a maximum height at the front end 102 of the chisel stem protector 20. The height of the groove 138 may gradually decrease in height as it extends to the rear end 104 of the stem protector 120. As best shown in Figure 1, the front portion of the groove 138 can rise higher than the height of the groove 78 at the chisel tip 18. The front portion of the groove 138 can also include a section that has a convex profile 146 that curves as extends away from the front end 102 of the chisel rod protector 20. Well in the past, groove 138 may include a section with a concave profile that join with a generally straight section as the profile extends away from the front end 102 of the scarifier rod protector 20.
[0048] Similar to scarifier tip 18, scarifier rod protector 20 can include an eye 150. Eye 150 can be attached to groove 138. Eye 150 can facilitate the suspension of scarifier rod protector 20 from a crane to maneuver the same.
[0049] With reference to Figures 14A-14C, the rotary lock assembly 62 may include a sleeve 160 and a lock 162 for each of the locking cavities 58, 72, 130 of the chisel tip 18 and stem protector 20, respectively . Each sleeve 160 includes a C-shaped skirt 164 with a regular inner and outer frustro-conical surface 166. Each sleeve 160 also includes two obstacle projections extending inwardly 168 spaced 180 degrees from each other. Each lock 162 includes a C-shaped skirt 170 connected to a head 172. The skirt 170 of the lock 162 defines a lock slot 174 with an open end 176 and a closed end 178. The outer surface 180 of the skirt 170 of the lock 162 includes a regular frustro-tapered surface and two 182 obstacle recesses 180 degrees apart.
[0050] Each sleeve 160 and lock 162 rests inside one of the locking cavities 58, 72, 130 when mounted on the chisel tip 18 and / or stem protector 120. In an unlocked position, the outer frustro-conical surface 180 of the latch skirt 170 rests within the frustro-conical inner surface 166 of sleeve 160. Additionally, the obstacle projections 168 of sleeve 160 rest within the obstacle recesses 182 of latch 162, in order to resist the unintended rotation of latch 162. The unlocked position of the lock assembly 62 places the open ends 176 of the lock slot 174 adjacent to the side slot 60, 74 or 126 of the chisel tip 18 or stem protector 120 (Figures 3 and 8). With sleeve 160 and lock 162 in the unlocked position, the chisel tip 18 and stem protector 120 can be received in the corresponding projections 42, 38 of the chisel stem 16. As the chisel tip 18 and stem protector 120 are received in the scarifier stem 16, projections 42, 38 slide through slits 60, 74 and 126 of scarifier tip 18 or stem protector 120 and into lock slots 174 of lock 162.
[0051] Once the projections 42 and 38 are arranged in the lock slots 174 of the lock assemblies 62 of the chisel tip 18 and stem protector 120, the locks 162 can be rotated on the projections 42, 38. According to lock 162 leaves the unlocked position, the recess obstacles 182 of the lock 162 disengage from the projection obstacles 168 of the sleeve 160. As the lock rotates, the outer frustro-conical surface 180 of the lock 162 slides along the internal frustro-conical surface 166 of the sleeve 160. When the lock 162 rotated 180 degrees, it reaches the locked position, and the recess obstacles 182 of the lock 162 again engage the projection obstacles 168 of the sleeve 160 to keep the lock 162 in the locked position. In the locked position, the closed end 178 of each lock 162 rests behind the associated projection 42, 38 and blocks one side of the lock cavities 58, 72, 130 adjacent to the slots 60, 74, 126. With the projections 42, 38 extending if in the locking cavities 58, 72, 130, and the locks 162 blocking the locking cavities 58, 74, 130, the projections 42, 38 keep the chisel tip 18 and shank protector 120 on the chisel rod 16. Industrial Applicability
[0052] The scarifier shank assembly of the present disclosure can be used with any ground engagement type machine to penetrate the resistant material and loosen it to aid removal.
[0053] In accordance with the present disclosure, the upper projection groove 78 of the chisel tip 18 provides the added material in a wear location and assists in pushing the material away from the chisel rod assembly 10. Incorporation of the mounts locking pin 62 to the chisel tip 18 provides easy and secure mounting of the chisel tip 18 to the chisel stem 16. The stem protector 20 also provides easy and secure mounting to the chisel stem 16. Specifically, the use of the chisel action pivoting to lock in the stem guard assembly 20 (Figure 13) allows the weight of the stem guard 20 to be substantially supported by the scarifier stem 16 while moving the stem guard to a locked position. In addition, the thickness distribution of the groove 138 of the stem protector 20 - so that greater thickness is provided near a front end 102 of the stem protector 20 - serves to extend the life of the stem protector 20 when locating the thickest portion of groove 138 where the stem protector receives increased wear. Finally, the combination of the projection groove 78 of the chisel tip 18 with the groove 138 of the stem protector 20 together serves to propel the material away from the stem assembly 10 and, specifically, away from the gap provided between the chisel tip 18 and the stem protector 20. Likewise, separate attachment of the chisel tip 18 to the chisel stem 16, and stem protector 20 to the chisel stem 26 facilitates removal of the assembly.
[0054] Other configurations of the systems and methods disclosed will be apparent to those of skill in the art from consideration of the specification and practice of the systems and methods disclosed herein. The specification and examples are intended to be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims and their equivalents. List of elements Title: scarifier tip for a scarifier stem assembly File: 11-0530 (our file n ° 08350.0346-00000) Scarifier stem assembly Base end Front end 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 63 64 Chisel chisel Chisel tip Chisel shank protector Frontal end Straight upper portion Medium portion Frontal edge Orifice Orifice Orifice Projection Projection Projection Front end Top surface Side surface Side surface Bottom surface Mounting cavity Locking cavity Slit Rotating locking mounting Opening protrusion 66. Side surface 68. Upper surface 70. Lower surface 72. Lock cavity 74. Slit 75. Lock opening 76. Overhang 78. Groove 80. Top of groove 82. Groove side 84. Groove side 86. Front end 88. Rear end 90. Boss 92. Boss 94. Groove 96. Depression 98. Depression 99. Eye 100. Body 102. Front end 104. Rear end 106. Side 108. Side 110. Central face 112. Mounting cavity 114. Assembly 116. Assembly 118. Assembly 120. Assembly 122. Slit with open end 124. Slit 126. Slit 128. Slit 130. Lock cavity 134. Lock opening 136. Overhang 138. Groove 140. Top of groove 142. Groove side 144. Groove side 146. Convex profile 150. Eye 160. Sleeve 162. Latch 164. Exit in C 166 format. Frustro-conical surface 168. Obstacle projections 170. Exit in C 172 format. Head 174. Lock slot 176. Open end 178. Closed end 180. Outer surface 182. Obstacle Recesses

权利要求:
Claims (20)
[0001]
1. Chisel tip, characterized by the fact that it comprises: - a front end (44); - a rear end (46); - a mounting cavity (56) extending at the rear end (46), the mounting cavity (56) including side walls, a first side wall defining a first locking cavity (58) configured to receive a first assembly rotary lock (62) and a second side wall defining a second lock cavity (72) configured to receive a second rotary lock assembly, the first rotary lock assembly being configured to be separate from the second rotary lock assembly; and - an upper surface (48) extending between the front end (44) and the rear end (46), where a portion of the upper surface (48) at the rear end (46) of the chisel tip (18) includes a groove (78) projecting upwards having the groove sides (82, 84) and an upper groove part (80) that extends at the rear at the chisel tip (18).
[0002]
2. Chisel tip, according to claim 1, characterized by the fact that the groove (78) increases in thickness as it extends at the rear.
[0003]
Chisel tip according to claim 2, characterized in that an end surface of the rear end (46) of the chisel tip (18) has a maximum thickness between the mounting cavity (56) and the upper part groove (80).
[0004]
Chisel tip according to claim 2, characterized in that the groove sides (82, 84) tilt away from each other as they extend away from the top groove (80).
[0005]
Chisel tip according to claim 4, characterized in that the upper surface (48) includes a shoulder (90, 92) adjacent to a base on each side of the groove (82, 84) at the rear end (46 ) of the chisel tip (18).
[0006]
6. Chisel tip, according to claim 5, characterized by the fact that the shoulders (90, 92) are flat.
[0007]
7. Chisel tip according to claim 1, characterized in that the groove sides (82, 84) tilt away from each other as they extend away from the top groove (80).
[0008]
Chisel tip according to claim 1, characterized in that the upper surface (48) includes a shoulder (90, 92) adjacent to a base on each side of the groove (82, 84) at the rear end (46 ) of the chisel tip (18).
[0009]
Chisel tip according to claim 1, characterized in that a front end (86) of the groove (78) is at the rear of the front end (44) of the chisel tip (18).
[0010]
Chisel tip according to claim 1, characterized in that a front end (86) of the groove (78) is arranged in one half of the rear of the upper surface (48) of the chisel tip (18).
[0011]
Chisel tip according to claim 1, characterized in that a lateral surface (50, 52) of the chisel tip (18) includes a protrusion (64, 76) with a locking cavity (58, 72) to receive a rotary lock (62) to fix the chisel tip (18) to a chisel rod (16).
[0012]
12. Chisel tip, characterized by the fact that it comprises: - a front end (44); - a rear end (46); - a mounting cavity (56) extending at the rear end (46); and - an upper surface (48), the upper surface (48) including: - a first groove (78), and - a second groove (94) disposed between the first groove (78) and the front end (44) of the tip of scarifier (18), the second groove (94) being flanked by a pair of depressions (96, 98) on the upper surface (48).
[0013]
13. Chisel tip according to claim 12, characterized by the fact that: - the first groove (78) includes the groove sides (82, 84) and an upper groove part (80); and - the groove sides (82, 84) slope away from each other as they extend away from the top groove (80).
[0014]
Scarifier tip according to claim 13, characterized in that an end surface of the rear end (46) of the scarifier tip (18) has a maximum thickness between the mounting cavity (56) and the upper part groove (80).
[0015]
Chisel tip according to claim 13, characterized in that the upper surface (48) includes a shoulder (90, 92) adjacent to a base on each side of the groove (82, 84) at the rear end (46 ) of the chisel tip (18).
[0016]
16. Scarifier tip, according to claim 15, characterized by the fact that the shoulders (90, 92) are coplanar with an upper part of the second groove (94).
[0017]
17. Chisel tip according to claim 13, characterized in that the groove sides (82, 84) are flat.
[0018]
18. Chisel tip according to claim 17, characterized in that the upper part of the groove (80) is flat.
[0019]
Chisel tip according to claim 12, characterized in that a side surface (50, 52) of the chisel tip (18) includes a protrusion (64, 76) with a locking cavity (58, 72) to receive a rotary lock (62) to fix the chisel tip (18) to a chisel rod (16).
[0020]
20. Chisel tip, characterized by the fact that it comprises: - a front end (44); - a rear end (46); - a mounting cavity (56) extending at the rear end (46), the mounting cavity (56) including side walls, a first side wall defining a first locking cavity (58) configured to receive a first assembly rotary lock (62) and a second side wall defining a second lock cavity (72) configured to receive a second rotary lock assembly, the first rotary lock assembly being configured to be separate from the second rotary lock assembly; and - an upper surface (48), the upper surface (48) including: - a first groove (78), the first groove (78) having the groove sides (82, 84) and an upper groove (80) which extends at the rear to a rear end surface (46) of the chisel tip (18), where: - the top groove (80) slopes upwards as it extends at the rear, - the groove sides ( 82, 84) tilt away from each other as they extend away from the top groove (80), and - an end surface of the rear end (46) of the chisel tip (18) has a maximum thickness between the mounting cavity (56) and the groove top 80).

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同族专利:

公开号 | 公开日

US20130081833A1|2013-04-04|

JP6240282B2|2017-11-29|

BR112014007379A2|2017-06-13|

WO2013049546A1|2013-04-04|

JP2014532130A|2014-12-04|

CN103842595B|2017-05-17|

US9297149B2|2016-03-29|

RU2597654C2|2016-09-20|

CA2850345A1|2013-04-04|

AU2012315821A1|2014-03-27|

CN103842595A|2014-06-04|

EP2761104B1|2016-11-16|

JP2017002717A|2017-01-05|

US20150167278A1|2015-06-18|

RU2014117798A|2015-11-10|

EP2761104A1|2014-08-06|

US8967287B2|2015-03-03|

AU2012315821B2|2016-11-24|

CA2850345C|2019-10-15|

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法律状态:
2019-05-14| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|

2019-11-26| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|

2020-12-01| B09A| Decision: intention to grant|

2021-01-19| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 28/09/2012, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

申请号 | 申请日 | 专利标题

US201161542042P| true| 2011-09-30|2011-09-30|

US61/542,042|2011-09-30|

US13/629,161|US8967287B2|2011-09-30|2012-09-27|Ripper tip for a ripper shank assembly|

US13/629,161|2012-09-27|

PCT/US2012/057879|WO2013049546A1|2011-09-30|2012-09-28|Ripper tip for a ripper shank assembly|

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