BACKLASH REDUCING STRUCTURE FOR RECLINING ADJUSTER

摘要

PROBLEM TO BE SOLVED: To provide a backlash reducing structure for a reclining adjuster with improved stability and comfort by reducing the backlash with a simple structure. SOLUTION: A worm gear 10 is rotatably attached to a seat cushion and a sector gear 12 is fixed to a seat back so that the worm gear 10 and the sector gear 12 are engaged with each other. And the sector gear 12 is pressed against the worm gear 10 by a pressing member 42 to reduce the backlash between tooth flanks.