Locks – Special application – For control and machine elements
Patent
1992-12-23
1994-01-11
Gall, Lloyd A.
Locks
Special application
For control and machine elements
70226, 70419, B60R 2502
Patent
active
052770427
ABSTRACT:
A mechanical anti-theft device of the type applied to the steering wheel of an automotive vehicle which automatically ratchets to it's applied position without necessity of key lock actuation is provided with several security enhancing features which cumulatively prevent or make the device exceedingly difficult to unlock using conventional burglary tools or lock picking techniques. The features include configuring the ratchet teeth of the telescoping rod member in a way which minimizes any attempt to deactivate the lock unless the key is used. In combination with the ratchet teeth configuration, the lock pawl mechanism is configured to include an arcuate, transversely extending apex edge line or surface which cooperates with or is sized to be coincident with the rod members circumference to prevent a wedge, shim or pick from being readily easily inserted between pawl and ratchet tooth to force a retraction of the pawl.
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patent: 4738127 (1988-04-01), Johnson
patent: 4935047 (1990-06-01), Wu
patent: 4949561 (1990-08-01), Solow et al.
patent: 5040388 (1991-08-01), Chen
patent: 5113673 (1992-05-01), Shen
patent: 5119651 (1992-06-01), Yang
patent: 5131245 (1992-07-01), Chen
patent: 5142889 (1992-09-01), Liu
Gall Lloyd A.
Winner International Corporation
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