Hoist mechanism
US5513901A · kind A · utility
15Cited by
17References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1994 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | Mar 14, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60P1/34
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hoist mechanism including a hoist subframe, a body subframe, a dump linkage pivotally coupling the body subframe to the hoist subframe such that the body subframe pivots about an instant center which moves continuously as the body subframe pivots and an actuator for moving the body subframe between a lowered position and a raised position. The instant center is positioned at a point below the hoist subframe with the body subframe in the lowered position, and progresses to a point above the hoist subframe as the body subframe is lifted to the raised position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.