Aisin Seiki Kabushiki Kaisha

Kojima Co., Ltd.

Yuki Miyamoto

Tomohiro Saeki

Satoshi Nakagaito

Masanori Suzuki

Hiroaki Suezaki

Atsushi Yamazumi

Hiroyuki Yamamoto

Masaki Kato

Chihiro Hayashi

Toshiyuki Saburi

Makoto Yokota

Takashi Murate

Ryota Akada

A damper device comprises: a first shaft that outputs rotational power from a power source; a second shaft that transmits rotational power to a gear mechanism and has outer splines; a first rotational member(s) to which the rotational power of the first shaft is transmitted; a second rotational member spline-engaged with the outer splines; a damper unit that absorbs torque fluctuation between the first and second rotational members; and an inertial body having inner splines spline-engaged with the outer splines and having an annular portion. The tooth parts of the inner splines are pressed into contact with the tooth parts of the outer splines in the circumferential direction of the inertial body.

Damper device

A torque fluctuation absorber includes a first rotating member arranged to be rotatable, a second rotating member arranged in a rotatable manner relative to the first rotating member, a coil spring for buffering a torsion between the first rotating member and the second rotating member by means of an elastic force, and a cushion member arranged at an inside of the coil spring and buffering the torsion between the first rotating member and the second rotating member by means of an elastic force, wherein the cushion member includes an elastic member formed in a columnar shape, and an abrasion resistant member partly covering a side surface of the elastic member and including a greater abrasion resistance than an abrasion resistance of the elastic member.

Torque fluctuation absorber

A torque fluctuation absorber includes a first plate member to which power of rotation is transmitted from a first rotational shaft, a second plate member arranged at a preset distance from the first plate member, a third plate member arranged between the first plate member and the second plate member and configured to transmit power of rotation to a second rotational shaft. The torque fluctuation absorber also includes a fourth plate member arranged at a preset distance from the second plate member, and a resilient member arranged between the second plate member and the fourth plate member and configured to bias the second plate member towards the third plate member. The fourth plate member includes a fulcrum point that supports a mid portion of the resilient member.

A torque fluctuation absorbing apparatus includes a first plate member, a second plate member rotatable relative to the first plate member, and a first friction member disposed between the first plate member and the second plate member and pressed against the first plate member in a slidable manner. The second plate member includes a first retaining surface that makes contact with the first friction member. The first friction member includes a plurality of grooves at a surface facing the first retaining surface of the second plate member, the grooves extending in a radial direction of the first friction member.

Torque fluctuation absorbing apparatus

A torque fluctuation absorber includes a first plate member to which power of rotation is transmitted from a first rotational shaft, a second plate member arranged at a preset distance from the first plate member, a third plate member arranged between the first plate member and the second plate member and configured to transmit power of rotation to a second rotational shaft. The torque fluctuation absorber also includes a fourth plate member arranged at a preset distance from the second plate member, and a resilient member arranged between the second plate member and the fourth plate member and configured to bias the second plate member towards the third plate member. The resilient member includes a first end abutting against the second plate member in an area where the second plate member faces the third plate member in the axial direction, and a second end abutting against the fourth plate member.

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Kariya, Japan

Yuki Miyamoto