Excavator coupler with two-stage lock member
US7797862B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2009 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Mar 21, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/365
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A coupler for a construction attachment includes a frame including: (i) an upper portion adapted to be secured to an associated excavator; and, (ii) a lower portion adapted to be releasably coupled to a construction attachment. The lower portion of the frame includes a first hook and a second hook. A lock member is movably connected relative to the frame and is movable between an extended position and a retracted position. The first and second hooks include respective open mouths and the lock member obstructs the open mouth of the second hook when the lock member is in the extended position. An actuator is operably connected to the lock member and is adapted to move the lock member between its extended and retracted positions. The lock member slides and pivots sequentially relative to the frame when moved by the actuator from the extended position to the retracted position, and the lock member pivots and slides sequentially relative to the frame when moved by the actuator from the retracted position to the extended position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.