Patent ID: 6764136
Filing Date: 2004-07-20
Classification: B60N

Abstract:
A reclining adjuster, comprising:a worm pivotably attached to a seat cushion; a worm wheel fixed to a seat back and engaging with the worm; and a locking mechanism selectively operated to lock the worm to be unable to rotate or to release the locking, wherein recess portions are respectively provided on both end faces of said worm and on the inside end faces of a pair of support members to support the both end portions of the worm, and balls are rotatably housed respectively in a pair of spaces formed between the recesses where both end faces of the worm face a pair of the support members so that a pair of bearings are formed to rotatably support the worm, wherein said locking mechanism includes a press means to press a tooth portion of said worm into a tooth portion of the worm wheel at the time of locking; wherein said locking mechanism comprises: an engaging claw which can engage and disengage with or from an engaging groove formed on a part of the tooth portion of the worm at the end portion thereof and an arm member pivotably supported with a shaft member in order to engage and disengage the engaging claw with or from the engaging groove, and wherein said press means is connected to the arm member, and is composed of an elastic member enforcing in the direction to engage said engaging claw to the engaging groove.