Spring damper device suitable for use in lockup clutch of torque

Details Spring damper device suitable for use in lockup clutch of torque Spring damper device suitable for use in lockup clutch of torque

1996-12-06

1999-03-16

Lillis, Eileen Dunn

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Torque transmitted via flexible element

Coil spring

192203, 267168, 464 66, F16D 314

Patent

active

058822640

ABSTRACT:
A spring damper device includes cylindrical outer coil springs and inner springs inserted in the outer coil springs, respectively. The cylindrical outer coil springs are held in the form of arcs of a circle at angular intervals therebetween by a retainer plate, whereas the inner springs have a length shorter than the outer coil springs so that the inner springs are actuated a predetermined angle later compared with their corresponding outer coil springs. Each of the inner springs has a diameter smaller at opposite end portions thereof than at a central portion thereof.

REFERENCES:
patent: 190582 (1877-05-01), Hansell
patent: 2001835 (1935-05-01), Cook
patent: 3030056 (1962-04-01), Rogers
patent: 4427400 (1984-01-01), Lamarche
patent: 4499981 (1985-02-01), Nagano
patent: 4591349 (1986-05-01), Takeuchi et al.
patent: 4810231 (1989-03-01), Weissenberger et al.
patent: 4907788 (1990-03-01), Balsells
patent: 4947700 (1990-08-01), Kern et al.
patent: 5203546 (1993-04-01), Amadore

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