Sumitomo Riko Company Limited

Toyota Boshoku Kabushiki Kaisha

Shuka Kitamura

Yasuo Suzuki

Koji Tomiyama

Akio Yabu

Yuhei Adachi

Yasuhiko Maekawa

This soundproof member is mounted to a drive device provided with a rotating body and comprises: an elastic member having a base material consisting of a resin or elastomer, the elastic member also having a magnetic filler contained in the base material so as to be interconnected and oriented in one direction; and a mass disposed on a surface with the elastic member provided therebetween, the surface extending in the direction of the rotation axis of the rotating body, the mass being supported by the elastic member.

Soundproof member

A soundproof cover is mounted to a first gear box of a power seat motor unit that is attached to a frame member of a seat and that has a motor and a gear box. In the first gear box, the axial direction of the motor is defined as the X direction, the direction of attachment to the frame member, which is one of two directions that are orthogonal to the X direction, is defined as the Y direction, and the remaining direction is defined as the Z direction. Then, the soundproof cover has: a foam disposed on at least an X-Z surface of the first gear box; a cover member disposed on the outer side of the foam; and a mass body interposed between the foam and the cover member and disposed at a position corresponding to at least the X-Z surface of the first gear box in contact with the foam.

Soundproof cover

Growing community of inventors

Aichi-ken, Japan

Shuka Kitamura