TORTIONAL DAMPER PULLEY

WIPO Patent Application WO/2003/102441

A1

A torsional damper pulley that has improved versatility and is easy to produce, and whose production costs can be reduced. A torsional damper pulley comprises a hub (11) fixed to a rotation shaft of an internal combustion engine, a ring-shaped pulley main body (10) provided coaxially with a ring-shaped fixing portion (11b) on the outer periphery of the hub, and an elastic body (13) interposed between the outer periphery of a flange and the inner periphery of the pulley main body. The pulley main body (10) comprises a ring-shaped frame body (12) having a substantially U letter-shaped cross section and having a concave portion (15) opened at one side in an axial direction of the frame body, and an ring-shaped inertia mass body (14) axially inserted and fixed in the concave portion (15). The inertia mass body includes a layered body formed with circular ring-shaped plates (14a) laid over one another and joined together. The inertia mass body is fixed in position by being pressed into the concave portion.

WATANABE HIDEAKI (JP)
OHKI KAZUMI (JP)
YOSHIDA TAKASHI (JP)
ISONO MASAKAZU (JP)

PCT/JP2003/006889

December 11, 2003

May 30, 2003

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FUKOKU KK (JP)
WATANABE HIDEAKI (JP)
OHKI KAZUMI (JP)
YOSHIDA TAKASHI (JP)
ISONO MASAKAZU (JP)

F16F15/12; F16F15/126; F16H55/36; F16F15/31; F16F15/315; (IPC1-7): F16F15/12; F16F15/126

WO1998051939A1

1998-11-19

JP2001355678A	2001-12-26
EP0013129A1	1980-07-09
JPH10202332A	1998-08-04
JPH11230255A	1999-08-27
JPH0173544U	1989-05-18

See also references of EP 1510724A4
None

Kitamura, Kinichi (16-1 Shinbashi 2-chom, Minato-Ku Tokyo, JP)

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