Wear assembly

Patent metadata

Field	Value
Publication number	US-2016201299-A1
Application number	US-201615079169-A
Country	US
Kind code	A1
Filing date	Mar 24, 2016
Priority date	Nov 23, 2011
Publication date	Jul 14, 2016
Grant date	—

Abstract

Wear members for wear assemblies include a lock configured to secure the wear member to a base, where the lock has two engagement positions, namely: (a) a first position that secures the lock to the wear member, and (b) a second position that secures the wear member to the base. The locks are further configured to be unlatched and removed from the wear member in two phases, a first retraction of the latching mechanism, followed by a rotation of the lock itself with removal from the wear member.

First claim

1 - 23 . (canceled)

24 . A wear member for ground-engaging equipment comprising an exterior surface, an interior surface facing the base, and a rear end wall, the interior surface having a first rail and a second rail extending rearward toward the rear end wall, the first and second rails each having a side surface to bear against complementary surfaces on the base, wherein the side surfaces axially converge toward each other.

25 . A wear member according to claim 24 including a front working end, a rear mounting end for engaging a base of the equipment for mounting the wear member to the equipment, the mounting end having a first leg and a second leg opposite the first leg spaced apart to receive the base, the first leg.

26 . A wear member according to claim 25 wherein the side surfaces on the rails face away from each other and converge in a direction toward the rear end wall.

27 . A wear member according to claim 25 wherein the side surfaces on the rails face toward each other and converge in a direction away from the rear end wall.

28 . A wear member according to claim 23 wherein a hole for receiving a lock is provided through the first leg, the first leg has an outer surface and a pair of opposite side surfaces extending between the outer surface and the base, the hole is defined in the outer surface of the first leg, and the first leg includes a lock access recess extending from the hole to one of the side surface for accommodating insertion of a tool to operate the lock.

29 . A wear member according to claim 28 wherein the hole for receiving the lock includes a front wall, a rear wall, and a side wall extending between the front wall and rear wall, the lock access recess extends from a side of the hole opposite the side wall and in a direction away from the side wall, and the lock access recess is defined in the outer side of the first leg but does not extend completely through the first leg.

30 . A wear member according to claim 28 wherein the hole for receiving the lock is provided between the first rail and the second rail.

31 . A wear member according to claim 30 wherein the lock access recess extends over the first rail.

32 . A wear member according to claim 27 wherein the interior surface of the first leg has a recess to each side of the rails to receive the base.

33 . A wear member for ground-engaging equipment comprising a wearable body having an internal surface facing a base on the equipment and an opposite external surface, a hole extending from the external surface to the internal surface, and a lock integrally mounted in the hole for movement between a locked position where the lock contacts the base to hold the wear member to the ground-engaging equipment and a release position where the lock releases the base, the lock having a lock body having a bearing surface to releasably engage the base and a coupling structure to engage the wearable body, a latch member movable relative to the lock body between a first position to engage the wearable body to hold the lock alternatively in the locked position and the release position, and a second position retracted from the first position, and an actuating member operative to move the latch member from the first position to the second position, and move the lock body relative to the wearable body.

34 . A wear member according to claim 33 including a resilient member to bias the latch member toward the first position.

35 . A wear member according to claim 33 wherein the actuating member rotates relative to the lock body on a first axis.

36 . A wear member according to claim 35 where the latch member is pivotable about a second axis between the first and second positions.

37 . A wear member according to claim 36 wherein the first axis and the second axis are parallel and non-aligned.

38 . A wear member according to claim 36 wherein the first axis and the second axis are non-parallel.

39 . A wear member according to claim 38 wherein the first axis diverges from the second axis at an angle from 0° to 45° as measured in a plane to which both axes are projected.

40 . A wear member according to claim 35 wherein a first phase of rotating the actuating member moves the latch member from the first position to the second position, and a second phase of rotating the actuating member moves the lock body about a support between the locked position and the release position.

41 . A wear member according to claim 40 wherein the lock body moves generally about a lock body axis between the locked and release positions, and wherein the first axis and the lock body axis are non-parallel.

42 . A wear member according to claim 33 wherein a first phase of moving the actuating member moves the latch member from the first position to the second position, and a second phase of moving the actuating member moves the lock body between the locked position and the release position.

43 . A wear member according to claim 33 wherein the actuating member includes a tool interface and a cam for engaging the latch member and translating motion of the actuating member to the latch member for moving the latch member between the first and second positions.

44 . A wear member for ground-engaging equipment comprising an exterior surface to contact earthen material, an interior surface facing and contacting a base on the equipment to secure the wear member to the equipment, and a hole extending from the exterior surface to the interior surface, the hole having a rear wall to engage a lock to swing inward to engage the base and hold the wear member to the equipment and swing outward to release the base and permit release of the wear member from the equipment, the hole having a front wall opposite the rear wall, a bearing surface on the front wall to engage a latch on the lock to retain the lock in the inwardly swung position, and the hole having a side wall extending between the front wall and the rear wall, and a lock access recess in the exterior surface to accommodate insertion of a tool to engage and operate the lock, the lock access recess extending away from the side wall of the hole.

45 . A wear member according to claim 44 having a rearwardly-opening cavity for receiving the base, the cavity being defined by a top wall, a bottom wall and spaced sidewalls extending between the top and bottom walls, the hole extending through at least one of the sidewalls, and the lock access recess extending from the hole to at least one of the top and bottom walls.

46 . A wear member according to claim 44 having first and second legs spaced to straddle the base, the first leg having an outer surface and a pair of opposite side surfaces extending between the outer surface and the base, the outer surface and the side surfaces defining a portion of the exterior surface, the hole being defined to open in the outer surface of the first leg, and the lock access recess extending from the hole to one of the side surfaces.

47 . A lock for securing a wear member to ground-engaging equipment comprising:
a lock body including a front bearing surface for contacting a base on the ground-engaging equipment and a rearwardly-opening recess for receiving a complementary support in a hole in the wear member; an actuator member movably coupled to the lock body; and a latch member movably coupled to the actuator member and the lock body such that movement of the actuator member relative to the lock

Assignees

• Esco Corp

Inventors

• Johnston Christopher A
• Conklin Donald M
• Roska Michael B
• Rossi William D
• Stangeland Kevin S

Classifications

• E02F9/2841 Primary

  resilient · CPC title

• E02F9/2825 Primary

  using adapters · CPC title

• E02F9/00 Primary

  Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00 (laying-out or take-up devices for trailing electric cables B66C) · CPC title

• E02F9/2816

  Mountings therefor · CPC title

• E02F9/2883

  Wear elements for buckets or implements in general · CPC title