US Patent 10414300 Seat sliding apparatus for a vehicle

A vehicle seat sliding apparatus includes an upper rail that supports a seat at an upper side, a lower rail that supports the upper rail to be relatively movable manner in a longitudinal direction of the upper rail, and a lock mechanism configured to restrain the upper rail from moving relative to the lower rail. The upper rail includes two side walls that are opposed in a width direction of the upper rail and an upper wall that connects the two side walls. The upper wall has a plurality of seat fasteners. The upper rail has at least one hole between a longitudinal end of the upper rail and one of the seat fasteners closest to the longitudinal end. The hole is a cutout formed in each of the two side walls and the upper wall.