Integrated wedge lock arrangement
US8322687B2 · kind B2 · utility
9Cited by
18References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2009 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Oct 5, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C23/305
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A hydraulically operated wedge lock system provides a releasable mechanical lock between telescoping boom segments. Each wedge lock mechanism includes a stationary backing wedge block that defines an angled smooth surface. A stationary shaft and piston is supported generally parallel to the backing wedge block. A slidable wedge block biased by a spring to a locked position is supported for reciprocal movement on the shaft along the angled smooth surface. Hydraulic fluid urges the slidable wedge block against the bias of the spring to an unlocked position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.