Hoist mechanism locking assembly
US10377292B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2017 |
| Grant date | Aug 13, 2019 |
| Priority date | — |
| Expiry date | Jan 5, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60P1/16
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hoist mechanism having an improved locking assembly. A hoist mechanism includes a frame including a first end and a second end, and the frame is pivotably coupled with a mounting structure at the frame first end. The hoist mechanism also includes a hoist arm assembly pivotably coupled with the frame second end, and the hoist arm assembly includes a jib operative to move between an extended position and a retracted position. The locking assembly includes a lug disposed on the jib and a link arm coupled with the frame. The link arm defines a slot dimensioned to selectively engage with the lug when the jib is moved from the retracted position. The hoist arm assembly is pivotable with respect to the frame when the jib is in the retracted position, and the frame and the hoist arm assembly are pivotable together when the jib is in the extended position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.