Chairs and seats – Movable back – Tiltable
Patent
1985-07-01
1987-08-18
Dorner, Kenneth J.
Chairs and seats
Movable back
Tiltable
297362, B60N 102
Patent
active
046872523
ABSTRACT:
A recliner mechanism particularly adapted for motor vehicle seats is described. In accordance with this invention, the adjusted position of the seat back is controlled by using a recliner mechanism which includes a coil spring clutch which is selectively tightened or loosened around an actuator clutch drum surface to fix the reclined position or to permit it to be varied. The upper recliner structure has a toothed quadrant surface which meshes with a recliner gear which communicates preferably through an intermediate gear to the rotating actuator clutch drum. A lever is employed to cause relative rotation between a pair of actuator cam plates which are connected to extending ends of a coil clutch spring. Movement of the actuator lever selectively causes the coil clutch spring to tighten or loosen around the actuator clutch drum. In accordance with another feature of this invention, a redundant positioning pawl is provided which prevents unrestrained motion of the upper recliner structure in the event of a failure or improper operation of the coil spring clutch actuator.
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Bell Robert L.
Secord Tyrone R.
Binder Mark W.
Dorner Kenneth J.
Fisher Dynamics Corporation
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