Patent ID: 7758008

Claim:
A seat sliding apparatus for a vehicle, comprising: a lower rail mounted to a vehicle floor, the lower rail including: a base bottom portion arranged in parallel with the vehicle floor, a first inner side portion and a first outer side portion, the first inner and outer side portions upwardly extending from both lateral ends of the base bottom portion, respectively, upper portions inwardly extending from respective upper ends of the first inner and outer side portions, and second inner and outer side portions downwardly extending from respective inner ends of the upper portions; an upper rail coupled to a vehicle seat and movably supported relative to the lower rail in a longitudinal direction thereof, the upper rail including: a base top portion arranged in parallel with the vehicle floor, a first inner extending portion and a first outer extending portion, the first inner and outer extending portions downwardly extending from both lateral ends of the base top portion, respectively, connecting portions outwardly extending from respective lower ends of the first inner and outer extending portions, and second inner and outer extending portions upwardly extending from respective outer ends of the connecting portions; a lock mechanism including: a lock portion provided at the first inner side portion of the lower rail, a bracket mounted to the upper rail and extending along an outer surface of the first inner side portion of the lower rail, and a lock member rotatably supported at the bracket so as to be engageable with and disengageable from the lock portion; a cutout portion formed across the base top portion and the first inner extending portion of the upper rail and into which the lock member is inserted; and through-holes provided at the second inner extending portion and the bracket, respectively, and facing the lock portion, the through-holes into which the lock member is inserted while the lock member is engaging with the lock portion.