Wear edge assembly
AssigneeESCO Corporation
InventorsLarren Jones, Oan Jones
Life of this patent
Estimating the term…
Abstract
A wear assembly for protecting a structure, such as an excavating bucket, from wear includes a lock for securing the wear member in place. The lock includes a take-up element for tightening the fit of the wear member, a latch to retain the lock in the assembly during use, and an arrangement for resisting loosening of the lock. With the assembly, the lock is able to effectively tighten the fit of the wear member on the lip, resist loosening of the fit, and facilitate easy removal of the lock without a concomitant increased risk of lock ejection.
Claims31
A lock adapted to be received in a wear member for holding a wear member to a structure of an excavator subjected to wear, the lock comprising:
- a body adapted to be received in an opening of the wear member, the body including a front wall for opposing a bearing wall of the structure, a rear wall for opposing a bearing wall of the wear member, and a hole extending through the body and opening in the front and rear walls, the hole having threads;
- a threaded member for expanding the lock to tighten the mounting of the wear member on the structure, the threaded member being received in the hole;
- a resilient member impeding loosening of the threaded member;
- and
- a retainer releasably holding the body in the opening of the wear member.
A lock adapted to be received in a wear member for holding the wear member to a structure of an excavator subjected to wear, the lock comprising (i) a body having an elongate, arcuate configuration, (ii) a movable take-up element projecting from the body for tightening the connection of the wear member on the structure, and (iii) a latch projecting from the body for retaining the lock in the wear member.
A lock adapted to be received in a wear member for holding the wear member to a structure of an excavator subjected to wear, the lock comprising:
- a body including a front wall for opposing a bearing wall of the structure, a rear walt for opposing a bearing wall of the wear member, and a threaded hole extending through the body and opening in the front and rear walls;
- and
- a threaded member received in the hole and selectively projecting beyond the front wall of the body to expand the lock and thereby tighten the mounting of the wear member on the structure, the threaded member having a thread deformation forward of the front wall to prevent loosening of the threaded member.
A wear assembly for protecting a surface of a structure subjected to wear comprising:
- a boss fixed to the structure;
- a wear member fit with the boss to protect the structure from wear;
- and
- a lock for holding a wear member to a structure subjected to wear, the lock comprising a body adapted to be received in an opening of the wear member, the body including a front wall for opposing a bearing wall of the structure, a rear wall for opposing a bearing wall of the wear member, and a hole extending through the body and opening in the front and rear walls, the hole having threads, a take-up element including a threaded member for expanding the lock to tighten the mounting of the wear member on the structure, the threaded member being received in the hole, means for impeding loosening of the threaded member, and means for retaining the body in the opening of the wear member, which is independent of the impeding means.
A wear member for protecting a surface of an excavator subjected to an abrasive environment, the surface including a boss, the wear member comprising an interior side facing the surface and including a slot to receive the boss, an exterior wear surface, and a lock-receiving passage, the passage having a curved shape with two opposite ends, each end opening in the exterior wear surface.
Dependencies are inferred from the claim text.