Patent ID: 7600802

Claim:
A seat apparatus for a vehicle, comprising: a first rail secured to a floor of the vehicle; a second rail secured to a seat and relatively movable to the first rail; a lock member for restricting a movement of the second rail relative to the first rail; an operational member for engaging with the lock member to release a restriction of the movement of the second rail relative to the first rail exerted by the lock member; a memory release member operable with the operational member; a release member operable in association with a tilt of a seat back over a predetermined angle for engaging with the lock member to release the restriction of the movement of the second rail relative to the first rail exerted by the lock member; and a memory member of which a movement relative to the floor of the vehicle is restricted when the movement of the second rail relative to the first rail is restricted by the lock member, wherein when the restriction of the movement of the second rail relative to the first rail is released by the operational member, the memory release member engages with the memory member so that a restriction of the movement of the memory member relative to the floor of the vehicle is released and so that the memory member integrally moves with the second rail, on the other hand, when the restriction of the movement of the second rail relative to the first rail is released by the release member, the movement of the memory member relative to the floor of the vehicle is restricted while the second rail moves in a first direction and after that the second rail moves in a second direction so that the memory member engages with the second rail as the second rail moves in the second direction and so that a position of the second rail relative to the first rail before the second rail moves in the first direction can be retrieved.