| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power slide device of a vehicle seat of which a friction sound caused between two members that contact while relatively rotating with each other in a case where a slide rail is inclined can be the same in volume when sliding toward a rear lower side and sliding toward a forward upper side, and moreover, that can be applied to a plurality of kinds of vehicles with low cost. <P>SOLUTION: Between a worm wheel 65 and at least one of a fore side inner wall face 117a of a gear box positioned right in front of the worm wheel 65, and a rear side inner wall face 117b of the gear box positioned right behind the worm wheel 65, there is provided a frictional force changing means W4 which reduces a difference between the fore frictional force and the rear frictional force by changing at least one of the fore frictional force and the rear frictional force, wherein a fore frictional force is a frictional force caused between the fore side inner wall face 117a and the worm wheel 65 when a screw rod 120 slides forward, and a rear frictional force is a frictional force caused between the rear side inner wall face 117b and the worm wheel 65 when the screw rod 120 slides rearward. <P>COPYRIGHT: (C)2013,JPO&INPIT |
