Tilt and telescope steering column having a single control

Details Tilt and telescope steering column having a single control Tilt and telescope steering column having a single control

1987-11-25

1988-12-27

Herrmann, Allan D.

Machine element or mechanism

Control lever and linkage systems

Hand operated

74535, 74540, 280775, B62D 118

Patent

active

047932040

ABSTRACT:
A tilt and telescope steering column is disclosed in which a single control member operates the lock and release of a tilt lock mechanism and a telescope lock mechanism. Both lock mechanisms include pivotally mounted pawls having teeth which interfit with teeth on an associated housing assembly to lock the column in its adjusted position. The pawls are movable in opposite directions from their respective locked positions to release positions in which adjustment of the steering column is permitted. A control member is mounted for movement in two directions and operates in one direction to release one lock system and in the opposite direction to release the other lock system. Spring means normally maintain the locking pawls in their locked position and also maintain the control member in its neutral position. In one embodiment, a single spring functions to normally maintain both lock mechanisms in their locked position and also normally maintains the control member in its neutral position. In a second embodiment, the control member provides a shaft on which the pawls are mounted for pivotal movement. A lost motion connection is provided between the control member shaft and the locking pawls so that only one locking system is released at a time.

REFERENCES:
patent: 3285090 (1966-11-01), Cranbury

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