Quick coupler assembly
US4854814A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1988 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Jun 20, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/96
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A quick coupler for attaching various material handling implements to a lift arm. The quick coupler includes an opening on one end for pivotal connection with the lift arm and a slotted end portion for selective engagement with a mounting pin on the implement. An intermediate portion of the quick coupler includes a mounting or coupler pin that extends laterally beyond the sides of the quick coupler. An actuating mechanism including a push-pull link is connected to the quick coupler for rotating it about the end of the lift arm. The quick coupler includes an element which may be used for lifting or positioning objects while the quick coupler is fully attached to the implement. Each implement is provided with a pair of opposed attachment members which include slots for receiving the outer laterally extending portions of the quick coupler mounting pin. After the quick coupler mounting pin is received within the slots in the attachment members, the pin is trapped therein thereby locking the quick coupler to the implement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.