Coupling for excavating wear part
First Claim
Patent Images
1. A wear assembly for use in excavating comprising:
- a support structure;
a wear member comprising a body having a front working end and a rear mounting end, the mounting end having a substantially enclosed portion forming a rearwardly opening socket for receiving the support structure, and an ear extending rearward from the body and substantially free of the enclosed portion, the ear having a tapered slot; and
a lock received into the slot by which the wear member is retained to the support structure.
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0 Petitions
Accused Products
Abstract
A wear assembly provided with a tapered opening and a complementary tapered lock wherein the lock can be pried into and from the opening to thereby eliminate the need for hammering. The lock is formed with a body and a latch that is movable between a hold position where the latch is engageable with a stop in the opening to releasably retain the lock in the opening and a release position where the latch disengages the stop.
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Citations
146 Claims
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1. A wear assembly for use in excavating comprising:
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a support structure; a wear member comprising a body having a front working end and a rear mounting end, the mounting end having a substantially enclosed portion forming a rearwardly opening socket for receiving the support structure, and an ear extending rearward from the body and substantially free of the enclosed portion, the ear having a tapered slot; and a lock received into the slot by which the wear member is retained to the support structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A wear assembly for use in excavating comprising:
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a support structure secured to excavating equipment; a wear member including a wear surface and a support cavity for receiving the support structure; an opening having an inlet end; a stop; and a lock received into the opening to retain the wear member on the support structure, the lock including a body and a latch, the latch being movable between a hold position where the latch engages the stop to prevent release of the lock from the opening inlet end when the lock is fully inserted into the opening and a release position wherein the latch is disengaged from the stop to permit removal of the lock from the opening, and the lock having at least one pry surface facing at least partially away from the inlet end of the opening and accessible by a tool to move the latch to the release position and to pull the lock from the opening. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A wear assembly for use in excavating comprising:
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a support structure; a wear member having a support cavity for receiving the support structure; an opening defined between the support structure and the wear member, the opening having an inlet end and narrowing in a plurality of generally perpendicular planes as the opening extends away from the inlet end; and a lock received into the opening through the inlet end to retain the wear member to the support structure, the lock narrowing in a plurality of generally perpendicular planes to complement the narrowing of the opening. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52)
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53. A lock for a wear assembly for an excavator having a support structure and a wear member, the lock comprising:
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a body that tapers toward one end along at least a substantial portion of the length of the body; a latch attached to the body for movement between a hold position where the latch engages a stop in the wear assembly to hold the lock in the wear assembly and a release position where the latch member is disengaged from the stop to permit removal of the lock from the wear assembly; and at least one pry surface remote from said one end, facing at least partially toward said one end, and being accessible by a tool to move the latch member to the release position and to pull the lock from the wear assembly. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73)
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- 74. A method of mounting a wear member having a support cavity onto excavating equipment having a support structure, the method comprising placing the wear member on the support structure such that the support structure is received into the support cavity, and using a leverage tool that engages the wear member or the support structure as a base to pry a lock into an opening defined by the wear member and the support structure.
- 80. A method of removing a wear member from a support structure secured to excavating equipment wherein a support cavity of the wear member is received over the support structure and a lock with a latch sets in an opening with the latch fit behind a stop to retain the lock in the opening, the method comprising moving the latch to a release position, pulling the lock from the opening by using a leverage tool to engage the wear member or the support structure as a base to engage a pry surface on the lock, and removing the wear member from the support structure.
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89. A method of removing a wear member from a support structure secured to excavating equipment wherein a support cavity of the wear member is received over the support structure and a lock is received in an opening to releasably retain the wear member to the support structure, the method comprising (i) placing a tool in a first position against the lock and one of the wear member and the support structure, (ii) rotating the tool such that the lock is pulled from the opening, (iii) removing the lock from the opening;
- and (iv) removing the wear member from the support structure.
- View Dependent Claims (90, 91, 92, 93, 94, 95, 96)
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97. A wear assembly for use in excavating comprising:
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a support structure; a wear member comprising a body having a front working end and a rear mounting end, the mounting end having a rearwardly opening socket for receiving the support structure, and at least one ear extending rearward from the body, the ear having a tapered slot, wherein the socket is partially defined by opposed walls, one of which supports the ear, wherein the slot is defined by an open inlet end, a front wall, an opposing rear wall, and a sidewall extending between the front and rear walls, and wherein the sidewall converges toward a central plane of the socket as the sidewall extends away from the inlet end, the central plane extending generally between and bisecting the opposing walls and generally facing the rearward extension of the ear; and a lock received into the slot through the inlet end to retain the wear member to the support structure.
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98. A wear assembly for use in excavating comprising:
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a support structure; a wear member comprising a body having a front working end and a rear mounting end, the mounting end having a rearwardly opening socket for receiving the support structure, and at least one ear extending rearward from the body, the ear having a tapered slot, wherein the socket is partially defined by opposed walls, one of which supports the ear, and the slot is defined by an open inlet end, a front wall, an opposing rear wall, and a sidewall extending between the front and rear wall, and wherein the sidewall converges toward a central plane of the socket as the sidewall extends forward, the central plane extending generally between and bisecting the opposing walls and generally facing the rearward extension of the ear; and a lock received into the slot through the inlet end to retain the wear member to the support structure.
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99. A wear assembly for use in excavating comprising:
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a support structure; a wear member comprising a body having a front working end and a rear mounting end, the mounting end having a rearwardly opening socket for receiving the support structure, and at least one ear extending rearward from the body, the ear having a tapered slot, wherein the slot includes a notch in at least one wall; and a lock received into the slot by which the wear member is retained to the support structure.
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100. A wear assembly for use in excavating comprising:
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a support structure; a wear member comprising a body having a front working end and a rear mounting end, the mounting end having a rearwardly opening socket for receiving the support structure, and at least one ear extending rearward from the body, the ear having a tapered slot with an inlet end, wherein the slot includes a front wall and a rear wall, and the rear wall includes a projecting portion adjacent the inlet end that extends inward beyond central portions of the ear; and a lock received into the slot by which the wear member is retained to the support structure.
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101. A lock for a wear assembly for an excavator having a support structure and a wear member, the lock comprising:
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a body that tapers toward one end along at least a substantial portion of the length of the body; a latch attached to the body for movement between a hold position where the latch engages a stop in the wear assembly to hold the lock in the wear assembly and a release position where the latch member is disengaged from the stop to permit removal of the lock from the wear assembly, wherein one of the body and the latch includes a rail and the other of the body and the latch includes a groove receiving the rail, the rail and the groove cooperating to retain the latch and body together; and at least one pry surface by which a tool presses to move the latch member to the release position and to pull the lock from the wear assembly.
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102. A lock for a wear assembly for an excavator having a support structure and a wear member, the lock comprising:
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a body that tapers toward one end along at least a substantial portion of the length of the body; a latch attached to the body for movement between a hold position where the latch engages a stop in the wear assembly to hold the lock in the wear assembly and a release position where the latch member is disengaged from the stop to permit removal of the lock from the wear assembly, wherein the body includes a hood that extends over at least part of the latch; and at least one pry surface by which a tool presses to move the latch member to the release position and to pull the lock from the wear assembly.
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103. A lock for a wear assembly for an excavator having a support structure and a wear member, the lock comprising:
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a body that tapers toward one end along at least a substantial portion of the length of the body; a latch attached to the body for movement between a hold position where the latch engages a stop in the wear assembly to hold the lock in the wear assembly and a release position where the latch member is disengaged from the stop to permit removal of the lock from the wear assembly, wherein the body includes a support surface against which a portion of the latch abuts when the lock is pried from the opening; and at least one pry surface by which a tool presses to move the latch member to the release position and to pull the lock from the wear assembly.
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104. A lock for a wear assembly for an excavator having a support structure and a wear member, the lock comprising:
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a body that tapers toward one end along at least a substantial portion of the length of the body; a latch attached to the body for movement between a hold position where the latch engages a stop in the wear assembly to hold the lock in the wear assembly and a release position where the latch is disengaged from the stop to permit removal of the lock from the wear assembly, wherein the body includes a channel and the latch is movably received in the channel for movement between the hold and release positions; and at least one pry surface by which a tool presses to move the latch to the release position and to pull the lock from the wear assembly.
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105. A lock for a wear assembly for an excavator having a support structure and a wear member, the lock comprising:
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a body that tapers toward one end along at least a substantial portion of the length of the body; a latch pivotally attached to the body for movement between a hold position where the latch extends laterally outward of a wall of the body to engage a stop in the wear assembly to hold the lock in the wear assembly, and a release position where the latch member is retracted relative to the wall of the body and is disengaged from the stop to permit removal of the lock from the wear assembly; and a resilient element between the body and the latch to bias the latch in a lateral direction outward of the wall of the body and into the hold position. - View Dependent Claims (106, 107, 108, 109, 110)
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111. A lock for a wear assembly for an excavator having a support structure and a wear member, the lock comprising:
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a body with a first end to be first received into the wear assembly and a second opposite end; a latch attached to the body for movement between a hold position where the latch extends outward of a wall of the body to engage a stop in the wear assembly to hold the lock in the wear assembly, and a release position where the latch member is retracted relative to the wall of the body and is disengaged from the stop to permit removal of the lock from the wear assembly; and a hood of the body at the second end that overlies the latch. - View Dependent Claims (112, 113)
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114. A lock for a wear assembly for an excavator having a support structure and a wear member, the lock comprising:
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a body with a first end to be first received into the wear assembly and a second opposite end; and a latch attached to the body for movement between a hold position where the latch extends outward of a wall of the body to engage a stop in the wear assembly to hold the lock in the wear assembly, and a release position where the latch member is retracted relative to the body and is disengaged from the stop to permit removal of the lock from the wear assembly, wherein one of the body and the latch includes a rail and the other of the body and the latch includes a groove receiving the rail, the rail and the groove cooperating to retain the latch and body together. - View Dependent Claims (115, 116, 117)
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118. A lock for a wear assembly for an excavator having a support structure and a wear member, the lock comprising:
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a body having a first end, a second end, and a first axis that extends from the first end to the second end, wherein the body tapers toward the first end along at least a substantial portion of the length of the body; and a latch attached to the body for movement generally along a length of an arcuate path of rotation about a second axis extending generally transverse to the first axis, the latch being movable between a hold position where the latch extends outward of a wall of the body to engage a stop in the wear assembly to hold the lock in the wear assembly, and a release position where the latch is retracted relative to the wall of the body and is disengaged from the stop to permit removal of the lock from the wear assembly. - View Dependent Claims (119, 120, 121, 122)
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123. A lock for a wear assembly for an excavator having a support structure and a wear member, the lock comprising:
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a body having a first end and a second end, wherein the body tapers toward the first end along at least a substantial portion of the length of the body in two generally perpendicular planes to form a substantial narrowing of the body toward the first end in said two planes for easy receipt within a complementary opening in the wear assembly; and a latch coupled to the body for movement between a hold position where the latch engages a stop in the wear assembly to hold the lock in the wear assembly, and a release position where the latch disengages from the stop to permit removal of the lock from the wear assembly. - View Dependent Claims (124, 125, 126, 127, 128, 129)
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130. A lock for securing a wear member to an excavator, the lock comprising:
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a body having a leading end for initial receipt into an opening where the lock holds the wear member in place, an opposite trailing end, sidewalls extending between the leading and trailing ends, and a first axis extending from the leading end to the trailing end; a latch attached to the body for movement generally along a length of an arcuate path of rotation about a second axis that is generally transverse to the first axis between a hold position and a release position, the latch extending outside of one of the sidewalls to engage a stop on the wear member or excavator and thereby retain the lock in the opening in the hold position, and being retracted from the hold position to release the latch from the stop and permit removal of the lock from the opening; and a resilient element compressed between the body and the latch to bias the latch to the hold position. - View Dependent Claims (131, 132, 133, 134, 135, 136, 137, 138)
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139. A lock for securing a wear member to an excavator, the lock comprising:
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a body, a latch, and a pivot pin to couple the latch to the body; the body having a leading end for initial receipt into an opening where the lock holds the wear member in place, an opposite trailing end, sidewalls extending between the leading and trailing ends, and a first axis extending from the leading end to the trailing end; and the latch being attached to the body for movement generally about a second axis between a hold position and a release position, the second axis being defined by the pivot pin that is generally transverse to the first axis, the latch extending outside of one of the sidewalls to engage a stop on the wear member or excavator and thereby retain the lock in the opening in the hold position, and being retracted from the hold position to release the stop and permit removal of the lock from the opening in the release position. - View Dependent Claims (140, 141, 142, 143, 144, 145)
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146. A lock to be received in an opening in a wear assembly for an excavator, the wear assembly having a base and a wear member fit over the base, the lock comprising:
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a body having a leading end, an opposite trailing end, and a first axis extending from the leading end to the trailing end, the body being defined in part by a pair of opposite walls adapted to contact corresponding walls defining the opening, the opposite walls converging toward the leading end along at least part of their lengths; and a latch attached to the body for movement between a hold position where the latch engages a stop in the wear assembly to hold the lock in the wear assembly and a release position where the latch is disengaged from the stop to permit removal of the lock from the wear assembly, the latch moving between the hold and release positions in directions generally transverse to the first axis, and, in the hold position, the latch being generally restrained in a direction parallel to the first axis to hold the lock in the wear assembly substantially free of bias tending to move the body along the first axis relative to the latch.
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Specification