Gear operated seat recliner with redundant positioning...

Details Gear operated seat recliner with redundant positioning... Gear operated seat recliner with redundant positioning...

A - Human Necessities

47

C

155/51.2, 155/8.

A47C 1/024 (2006.01) B60N 1/02 (1985.01)

Patent

CA 1253068

ABSTRACT OF THE DISCLOSURE A gear operated seat recliner mechanism is described which is particularly useful in connection with motor vehicle occupant seats. The recliner permits the angle between the e at back and meat bottom to be varied as desired by the seat occupant. In accordance with this invention, the upper recliner structure pivots about the lower recliner structure and a quadrant component which pivots with the upper recliner structure includes a curved toothed rack which meshes with a gear. A locking pawl is movable between a position of engagement with the gear to fix the sea back angle to a disengaged position, permitting the seat back angle to be adjusted. Further, a restraint pawl is provided which acts upon the curved toothed rack in the event that the locking pawl or recliner gear fails, thereby providing a redundant means for fixing the relative angular position between the upper and lower recliner structure.

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