Releasable locking device
US4379354A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1981 |
| Grant date | Apr 12, 1983 |
| Priority date | — |
| Expiry date | Aug 5, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/0947
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A device is provided for releasably locking a parked vehicle to an adjacent loading dock. The device includes a vertically adjustable carriage mounted on the front wall of the dock, and a hook-like member supported by the carriage for independent rotary movement between an operative vehicle-interlocking position and an inoperative vehicle-release position. A carriage-supported first member is disposed coaxially with the axis of said hook-like member and moves therewith as a unit. A flexible second member engages the first member and upon a predetermined pulling force being applied to said second member, causes the hook-like member to move to the operative vehicle-interlocking position. A unit is operatively connected to the flexible second member whereby the predetermined pulling force applied thereto is enhanced so as to effect a substantially greater turning force being exerted on the first member. Mounted on the carriage and disposed adjacent the first member is a releasable lock element which retains the hook-like member in the operative vehicle-interlocking position. Manually actuated means is connected to the lock element to effect controlled disengagement of the element from…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.