Wear member for earth working equipment
AssigneeEsco Group LLC
InventorsMichael C. Dare, Rodney K. Clarke, Junbo Qian, Matthew J. Dunford, Sean G. Moore, Geoffrey R. Hodges, Jared R. Ames, Joel S. Hankland
Life of this patent
Estimating the term…
Abstract
A wear member and fastener for securing the wear member to earth working equipment. The fastener can be installed and maintained from the top of the assembly. An eccentric retainer is received in a recess of the wear member and is rotated to shift the wear member rearward on the earth working equipment. A bolt passing through aligned openings of the earth working equipment and the wear member is received by the retainer to secure the wear member to the earth working equipment.
Claims19
A method of installing a wear member onto a lip of earth working equipment comprises:
- installing a retainer in an opening in the wear member;
- positioning the wear member on the lip with the retainer in the opening so the opening in the wear member is aligned with an opening in the lip;
- engaging the retainer with a tightening member to secure the wear member to the lip, wherein a main axis of the tightening member is parallel to and offset from a main axis of the retainer;
- and
- rotating the tightening member to turn the retainer to urge the wear member rearwardly onto the lip.
A wear assembly for earth working equipment comprising:
- a wear member with a wear surface to contact earthen material, an inner surface defining a cavity to receive a portion of the earth working equipment and an opening extending from the inner surface to an outer surface having a bearing surface;
- a retainer rotatably secured in the opening and including a bore, wherein the bore includes a threaded portion with a thread axis parallel to and offset from a main axis of the retainer such that the retainer is eccentric;
- and
- a tightening member to contact the earth working equipment and engage the retainer to pull the retainer toward the bearing surface and secure the wear member to the earth working equipment.
A wear assembly for earth working equipment comprising:
- a wear member to contact earthen material including a mounting portion for securing the wear member to the earth working equipment, the mounting portion including an inner surface to face the earth working equipment, an opposite outer surface, and an opening including a bearing surface and at least one tab or slot;
- a retainer including a complementary at least one other tab or slot to permit insertion of the retainer into the opening in at least one orientation and to preclude removal of the retainer from the opening in at least one other orientation;
- and
- a tightening member to contact the earth working equipment and engage the retainer to pull the retainer against the bearing surface and thereby secure the wear member to the earth working equipment.
A wear member for earth working equipment comprising:
- a front end to contact earthen material;
- a mounting portion for securing the wear member to the earth working equipment, the mounting portion including an inner surface to face the earth working equipment,
- an opposite outer surface;
- an opening extending from the inner surface to the outer surface to receive a retainer to secure the wear member to the earth working equipment, the opening including a bearing surface;
- and
- at least one tab or slot associated with the opening to receive a complementary tab and/or slot on the retainer to permit insertion of the retainer into the opening in one at least one orientation and to preclude removal of the retainer from the opening in at least one other orientation.
Dependencies are inferred from the claim text.