Locks – Special application – For control and machine elements
Patent
1989-03-30
1991-01-01
Gall, Lloyd A.
Locks
Special application
For control and machine elements
70252, 70360, B60R 2502
Patent
active
049810260
ABSTRACT:
A steering column shaft locking device is disclosed in which a lever is rotatably mounted in a key cylinder when a key is inserted into the key cylinder, producing reaction force on a front wall of a housing, thereby causing the key cylinder to move backward against resilient force of a spring in order to certainly operate a key detecting switch provided in an ignition switch device. A guard plate is provided between the key cylinder and the front end of the housing so as to rotate it together with the key cylinder and guard plate when the key is rotated. Forward movement of the key cylinder is controlled by a retainer placed at the proximity thereof and a detent placed therein. The spring urges the key cylinder and the retainer in the forward direction and the detent radially inwardly. The guard plate serves to prevent abrasion of the lever and unauthorized insertion of tools into the device.
REFERENCES:
patent: 2023208 (1935-12-01), Olson
patent: 4495786 (1985-01-01), Masaki et al.
patent: 4516415 (1985-05-01), Kobayashi et al.
patent: 4580822 (1986-04-01), Fukumoto
patent: 4685313 (1987-08-01), Neyret
Kobayashi Toshikazu
Masaki Mikio
Sakuno Hideaki
Sato Hidekazu
Gall Lloyd A.
Kokusan Kinzoku Kogyo Kabushiki Kaisha
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