Wear assembly

Patent metadata

Field	Value
Publication number	US-11359355-B2
Application number	US-201815984247-A
Country	US
Kind code	B2
Filing date	May 18, 2018
Priority date	Jul 14, 2011
Publication date	Jun 14, 2022
Grant date	Jun 14, 2022

Abstract

A wear assembly for use on various kinds of earth working equipment that includes a base with a supporting portion, a wear member with a cavity into which the supporting portion is received, and a lock to releasably secure the wear member to the base. The supporting portion is formed with top and bottom recesses that receive complementary projections of the wear member. These recesses and projections include aligned holes so as to receive and position the lock centrally within the wear assembly and remote from the wear surface. The hole in the wear member is defined by a wall that includes a retaining structure provided with an upper bearing surface and a lower bearing surface for contacting and retaining the lock against upward and downward movement in the hole. The lock includes a mounting component that defines a threaded opening for receiving a threaded pin that is used to releasably hold the wear member to the base. The separate mounting component can be easily manufactured and secured within the wear member for less expense and higher quality than forming the threads directly in the wear member.

First claim

The invention claimed is:

1. A wear member comprising (i) a wearable body having a hole having a central axis, and (ii) a lock including a collar having a threaded opening received in the hole, and a threaded pin received in the threaded opening for adjustment between a hold position where the threaded pin extends through the collar to contact a base to secure the wear member to the base and a release position where the threaded pin permits release of the wear member from the base, wherein the hole includes slots and the collar includes lugs received into the slots to prevent the movement of the collar along the central axis.

2. A wear member in accordance with claim 1 including a latching detent to secure the threaded pin in each of the hold and release positions.

3. A wear member in accordance with claim 2 wherein the latching detent includes a biased tooth projecting outward on the pin and two spaced apart recesses within the threaded opening to receive the tooth in the hold and release positions respectively.

4. A wear member in accordance with claim 1 including a retainer received into the hole to prevent rotation of the collar about the central axis.

5. A wear member in accordance with claim 1 wherein the wearable body includes a rearwardly-facing mounting cavity for receiving a base to facilitate attachment to a digging edge of an earth working equipment.

6. A wear member in accordance with claim 1 wherein the collar includes a body that defines the threaded opening, and the lugs and body are a one-piece member.

7. A wear member comprising (i) a wearable body having a hole having a central axis, and (ii) a lock including one-piece a collar having a threaded opening received in the hole, and a threaded pin received in the threaded opening for adjustment between a hold position where the threaded pin secures the wear member to a base and a release position where the threaded pin permits release of the wear member from the base, and a retainer received into the hole to prevent rotation of the collar about the central axis.

8. A wear member in accordance with claim 7 wherein the retainer is a clip with an extending tab to prevent removal from the hole.

9. A wear member in accordance with claim 7 wherein the retainer is formed of sheet steel.

10. A wear member in accordance with claim 7 including a latching detent to secure the threaded pin in each of the hold and release positions.

11. A wear member in accordance with claim 10 wherein the latching detent includes a biased tooth projecting outward on the pin and two spaced apart recesses within the threaded opening to receive the tooth in the hold and release positions respectively.

12. A wear member in accordance with claim 7 wherein the wearable body includes a rearwardly-facing mounting cavity for receiving a base to facilitate attachment to a digging edge of an earth working equipment.

13. A wear member comprising (i) a wearable body having a hole having a central axis, and (ii) a lock including a collar having a threaded opening received in the hole, and a threaded pin received in the threaded opening for adjustment between a hold position where the threaded pin secures the wear member to a base and a release position where the threaded pin permits release of the wear member from the base, and a latching detent to secure the threaded pin in each of the hold and release positions.

14. A wear member in accordance with claim 13 wherein the latching detent includes a biased tooth projecting outward on the pin and the two spaced apart recesses are within the threaded opening to receive the tooth in the hold and release positions respectively.

15. A wear member in accordance with claim 13 including a retainer that is received into the hole to prevent rotation of the collar about the central axis.

16. A wear member in accordance with claim 15 wherein the retainer is a clip with an extending tab to prevent removal from the hole.

17. A wear member in accordance with claim 15 wherein the retainer is formed of sheet steel.

18. A wear member in accordance with claim 13 wherein the wearable body includes a rearwardly-facing mounting cavity for receiving a base to facilitate attachment to a digging edge of an earth working equipment.

19. A wear member in accordance with claim 13 wherein the collar or pin includes a pair of spaced apart recess, and the other of the collar or pin includes a biased latch member receivable into one of the recesses in the hold position and in the other of the recesses in the release position.

Assignees

• Esco Group Llc

Inventors

• Cheyne Mark A
• Cowgill Noah D
• Roska Michael B
• Conklin Donald M
• Zenier Scott H
• Hainley Chris J

Classifications

• E02F9/2825

  using adapters · CPC title

• E02F9/267 Primary

  Diagnosing or detecting failure of vehicles · CPC title

• E02F9/2858

  characterised by shape · CPC title

• E02F9/2841

  resilient · CPC title

• E02F9/2833 Primary

  Retaining means, e.g. pins · CPC title