Apparatus for blocking a winch
US5004177A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 28, 1989 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Nov 28, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66D1/04
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus for blocking a winch is disclosed. A winch reel is mounted between two opposed sideplates which are joined to form a frame. The winch reel includes a plurality of blocking pins extending substantially parallel to the central axis of the reel and away from one side of the reel. One sideplate of the frame incorporates a plurality of blocking apertures positioned to engage the blocking pins. A spring is interposed between the second sideplate to bias the reel in the direction of the sideplate having the blocking apertures. An inclined ramp is integral with and extends away from each of the blocking apertures in one rotational direction. The inclined ramps allow the winch to be readily rotated in one direction. Alternatively, the interaction of the blocking pins and the blocking apertures block rotation in the other direction unless a force is applied through a handle to compress the spring thereby shifting the reel and disengaging the blocking pins from the blocking apertures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.