Patent ID: 7134718

Claim:
A vehicle seat, comprising: a frame; a seat connected to said frame and having a seat cushion; a backrest connected to said frame and having a backrest cushion that includes a buttocks-contact portion and a shoulder-contact portion; and a backrest damping element, wherein each of the seat cushion and the backrest cushion comprises a plurality of cells, each of the plurality of cells having a spring element which is configured to be compressed in a pressing direction of the seated occupant and to be extended in a direction opposite to the pressing direction so as to dampen compression and extension of the corresponding cell, and the backrest damping element is formed by superposing the seat cushion and backrest cushion to each other by sewing threads or a semi-welded portion, such that the sewing threads break or the semi-welded portion peels apart when a predetermined impact force is applied from the back toward the front, thus causing the buttocks-contact portion to expand and allowing a waist portion of the seated occupant to sink downward, thereby damping the impact force on the seated occupant.