Delta Tooling Co., Ltd.

Miho Kikusui

Etsunori Fujita

Yumi Ogura

Seiji Kawasaki

Yasuhide Takata

Kazuyoshi Chizuka

Shigeyuki Kojima

Naoki Ochiai

The object of the present invention is to suppress rebound of a human body by making a reaction force small due to a large damping ratio. A bulging portion is formed at a seat cushioning member which is a tension structure. This structure has a structure of changing the damping characteristics functioned by the change in strain energy and tension by deformation created by a plane wave of the tension structure in accordance with the magnitude of the excitation force of an inputted vibration. Therefore, since the damping characteristics function with a small damping ratio to an input of a small excitation force, it can relieve the vibration with a phase difference due to the spring property of the seat cushioning member and/or a back cushioning member and to an input of a large excitation force, by increase of the strain energy and decrease of the tension, the damping characteristics function with a large damping ratio and a long operating time, so that rebound of a human body upward can be suppressed.

Seat structure

Growing community of inventors

Hiroshima, Japan

Miho Kikusui