Device for locking a rectilinear displacement mechanical jack incorporating an inertia safety locking member
US5301569A · kind A · utility
10Cited by
12References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 8, 1993 |
| Grant date | Apr 12, 1994 |
| Priority date | — |
| Expiry date | Mar 8, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2107
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
At least one rod is normally locked by toothed rollers cooperating with toothed slanted inner portions of V-shaped locking members controlled by a locking cam. The V-shaped locking members are guided within an inner casing of a polygonal shape that has a lower portion for supporting the rod. The lower portion comprises two slanted inner elements which cooperate with a fluted roller placed underneath the underside of the rod. Under an impact, the fluted roller is locked underneath the rod by moving upwardly along one of the two slanted inner elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.