Patent ID: 7533936

Claim:
A vehicle seat assembly comprising: a pair of right and left seat slide rails including: a pair of right and left lower rails each fixed onto a floor portion of an occupant compartment to extend in a longitudinal direction of a vehicle body, and a pair of right and left upper rails slidably supported along corresponding ones of said lower rails; and a pair of right and left seat-cushion frames each supported by a corresponding one of said seat slide rails in such a manner as to be moved in said longitudinal direction together with a corresponding one of said upper rails, a coupling member coupling a front end of each of said seat-cushion frames to a corresponding one of said upper rails; a rear link member provided in a rear end of each of said seat-cushion frames; and a vehicle body-side support member provided on the side of the vehicle body to support said rear link member, wherein: said rear link member including: a pivoted portion pivotally supported by said upper rail, a coupled portion coupled to the rear end of said seat-cushion frame, and an engaged portion engaged with said vehicle body-side support member; and said vehicle body-side support member including: a sliding drive portion which slidably supports said engaged portion of said rear link member to allow said rear link member to be swingingly displaced about said pivoted portion in conjunction with a longitudinal movement of said seat-cushion frame, so as to move said coupled portion of said rear link member in an upward/downward direction to drivingly lift and lower the rear end of said seat-cushion frame.