Anti-theft device with key presence security
US4685313A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1986 |
| Grant date | Aug 11, 1987 |
| Priority date | — |
| Expiry date | Nov 17, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/5956
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention relates to an anti-theft steering lock for automobile vehicle, of the type comprising a bolt thrust elastically into the locking position and controlled by the rotation of a key rotor, and means for retaining the bolt in the retracted position which are set out of action by the withdrawal of the key. The anti-theft device according to the invention is characterized in that the said retaining means comprise a key sensor sliding radially in the rotor and co-operating, in the locking angular position of the rotor, with a slide block movable in the lock housing at right angles to the axis of the rotor and thrust elastically towards the said rotor, the said slide block co-operating with an aperture of a slider fast in translational movement with the said bolt, the said aperture being prolonged towards the rear by a narrower slot, the said slide block having a width slightly less than that of the said slot and comprising, over a part of its height, an excess thickness of width greater than that of the said slot but less than that of the said aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.