Ts Tech Co., Ltd.

Takatoshi Nakazawa

Wataru Honda

Hiromi Taniguchi

Yoichi Tachikawa

Naoto Nagasawa

A vehicle seat () is provided with a cushion frame () that can be moved up and down by means of a link mechanism (). To assist the upward movement of the cushion frame (), a torsion bar () is disposed in a connection pipe () having both ends secured to a pair of left and right rear links (). A position holding member () holds the torsion bar () and is supported by the connection pipe (), whereby the positional shift of the axis of the torsion bar () is suppressed. The position holding member () engages an extension portion () extending perpendicular to the shaft portion (), and thus, does not rotate around the axis relative to the torsion bar (). Therefore, in the position holding member (), portions requiring reinforcement against a transverse force from the torsion bar () are limited a narrow range, and the position holding member () can be reduced in size and weight.

Vehicle seat

The number of components required to restrict the movement of an operating section, when a cushion frame is moved in the height direction, and a link member, which is for moving the cushion frame, is reduced. The seat is provided with: a drive link that is rotatably attached to the cushion frame and that moves the cushion frame in the height direction according to rotation thereof; a gear part that engages with the drive link and that rotates the drive link; a link-rotation restricting member for restricting the rotation range of the drive link; an operating section that accepts an operation for adjusting the height of the cushion frame; and a rotation application section for rotating the drive link via the gear part according to the operating section. The movement of the operating section is restricted as a result of the link-rotation restricting member abutting against the rotation application section.

Growing community of inventors

Tochigi, Japan

Takatoshi Nakazawa