Jib attachment/detachment mechanism
US9738497B2 · kind B2 · utility
2Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2014 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Dec 3, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C23/702
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A jib attachment/detachment mechanism to mount a jib on a boom head includes a guide mechanism including a guide roller and a guide support configured to guide engaging portions of a jib support to positions of engagement with shaft pins of a boom head when the jib support is pulled up with a wire by using a winch and to prevent change of a state of the wire pulled up by the winch when the jib support is rotated around the shaft pins by contracting a cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.