Backhoe bucket quick coupler
US4295287A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1980 |
| Grant date | Oct 20, 1981 |
| Priority date | — |
| Expiry date | Apr 10, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/59
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A quick coupling bucket mounting mechanism is disclosed for coupling a material handling bucket, blade, compactor, impact hammer or other attachment to the free end of a scoop arm extending from a loader or backhoe. A quick coupler is provided which is pivotally mounted to the loader scoop arm for readily receiving various types and sizes of attachments. The quick coupler has a three-leg configuration including a pair of bucket mounting legs adaptable for engagement with a bucket mounting pin. One end of each bucket mounting leg has a hook portion which cooperatively locks around lateral projections of the bucket mounting pin. A releasable latch mechanism is pivotally mounted on the third leg of the quick coupler for engagement with a complementary latch pin on the bucket. The latch mechanism is selectively rotatable to two positions. In a first position, it is aligned with and forms an opening which permits the quick coupler to be seated on the bucket latch pin. The latch mechanism is then rotated to a second position which closes the opening thereby providing a bearing mounting for the bucket latch pin in the latch mechanism. In the latched position of the quick coupler, a quick …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.