| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact reclining adjuster capable of bearing even large loads by using a sector gear and a worm gear having strength required at the time of normal use. SOLUTION: This reclining adjuster is constituted such that the worm gear 6 is freely turnably attached to a seat cushion and a helical gear 8 engaged with the worm gear 6 is attached to a seat back through an auxiliary lock mechanism. The auxiliary lock mechanism is constituted of a pair of external tooth gears 26 connected to the helical gear 8 and fitted to a part of the seat back and a pair of inner teeth 2b attached to the seat cushion and equipped with the pair of external tooth gears 26 inside respectively. While the seat back is held at a prescribed angle to the seat cushion by the engagement of the worm gear 6 and the helical gear 8 at the time of the normal use, by deforming a part of the pair of external tooth gears 26 and engaging it with the corresponding inner tooth 2b, the seat back is held at the prescribed angle to the seat cushion. COPYRIGHT: (C)2006,JPO&NCIPI
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