SEAT

摘要

A seat where a cushion member exhibits high follow-up properties for the motion of a human body and vibration inputted externally can be removed more efficiently. A parallel link mechanism having a first link board (113) employing a torsion bar (112) and pivotally supporting the cushion material of a seat cushion part (150) on the torsion bar (112), a second link board (116) arranged in association with the first link board (113), and a link board (117) for connecting them is employed for supporting, and the operating directions of the first link board (113) and the second link board (116) are set so as to be substantially aligned with the vertical direction along the surface of the seat back portion. Since the seat performs rotary motion following up the movement of a human body caused by an external vibration input, relative movement between the human body and the cushion member is small, and thereby resonance peak is lowered and vibration absorption characteristics can be enhanced.