Push-pull assembly for lift trucks
US4205938A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1978 |
| Grant date | Jun 3, 1980 |
| Priority date | — |
| Expiry date | Oct 26, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F9/195
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A load push-pull assembly for a lift truck having a main frame and a tiltable load-supporting frame. The push-pull assembly comprises a push frame connected by a selectively extensible and retractable linkage to a rear mounting frame which does not tilt in unison with the tiltable load-supporting frame but rather maintains a constant angular attitude with respect to the truck-supporting surface regardless of the tilting attitude of the load-supporting frame. The linkage maintains the push frame in a constant angular attitude with respect to the rear mounting frame such that the push frame is maintained perpendicular with respect to the truck-supporting surface during the tilting of the load-supporting frame. The push frame is freely movable vertically with respect to the rear mounting frame, and is supported vertically by the tiltable load-supporting frame, such that it moves vertically with a rectilinear motion in response to the tilting movement of the load-supporting frame without changing its angular attitude with respect to the truck-supporting surface. A slip sheet clamp is mounted on the bottom of the push frame such that both jaws of the clamp move vertically in unison with…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.