Patent ID: 7735798

Claim:
A seat sliding apparatus for a vehicle, comprising: a lower rail adapted to be fixed to a vehicle floor; an upper rail adapted to be fixed to a vehicle seat and supported by the lower rail so as to be movable relative thereto, the upper rail comprising a hole extending in a longitudinal direction of the upper rail; and a lock mechanism including multiple lock portions provided on the lower rail along a longitudinal direction thereof, a spindle provided on the upper rail and having a rotation axis that extends in the longitudinal direction of the upper rail, and a lock member connected to the spindle to rotate with the spindle about the rotation axis for selective engagement with and disengagement from the lock portions, the lock member being within the upper rail when disengaged from the lock portions, the lock member passing through the hole when being brought into engagement with the lock portions, wherein an upper surface of the upper rail has a recess portion integral with the upper rail, the recess portion extending inwardly toward an interior of the upper rail and being located adjacent a longitudinal end of the hole in the upper rail, the recess portion rotatably supporting the spindle, and the recess portion being exposed upwardly at the upper surface of the upper rail.