US Patent 7086696 Vehicle seat

A vehicle seat includes a seat back supported to a body floor of a vehicle, a seat cushion pivotally supported to the seat back so as to be tipped up relative to the seat back, a leg member pivotally supported to a lower portion of the seat cushion, at least one spring member for biasing the leg member in such a direction as to be away from a bottom surface of the seat cushion, at least one stopper member for stopping the leg member against an action of the spring member and keeping the leg member vertically standing from the bottom surface of the seat cushion, and a mechanism for causing the leg member to be operatively folded and then laid on the bottom surface of the seat cushion against the action of the spring member, synchronously with the tipping-up of the seat cushion relative to the seat back.