DISC RECLINER WITH REDUCED BACKLASH

摘要

A disc recliner mechanism includes a guide plate having a pair of guides and a tooth plate having an inner radial edge with a plurality of teeth. A pawl mounted between the guide and tooth plates includes a radially inner cam surface and a toothed outer edge. The pawl is guided by the guides between a retracted position disengaged with the tooth plate to allow rotational movement of the tooth plate and an extended position engaged with the tooth plate to prevent rotational movement of the tooth plate. A cam rotatably mounted between the guide and tooth plates includes a radially outer cam profile selectively engaging and cooperating with the cam surface. Rotating the cam in a first direction moves the pawl radially outward with respect to the guide plate to the extended position and applies a rotational moment to the pawl thereby wedging the pawl between the guides.