Damper disc assembly having spring engaging means which restrict

Details Damper disc assembly having spring engaging means which restrict Damper disc assembly having spring engaging means which restrict

1996-07-23

1998-09-01

Stryjewski, William

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

Torque transmitted via flexible element

Coil spring

464 68, 192205, F16D 352

Patent

active

058002707

ABSTRACT:
A clutch disc assembly includes a flange having a plurality of window holes formed in a circumferential direction about the flange. A clutch plate and a retaining plate are disposed on either side the flange. The clutch plate and the retaining plate are fixed to each other and include a plurality of window holes corresponding to the window holes of the flange. A plurality of first coil springs are disposed in the window holes of the flange such that each end of the first coil springs are supported in the circumferential direction by the window holes in the retaining plate and the clutch plate. Protrusions are formed on circumferentially opposite ends of the window holes in the flange. The protrusions are configured to engage the first coil spring in response to rotary displacement between the flange and the retaining and clutch plates. Upon engagement between the ends of the first coil spring and the protrusions, the protrusions limit the radial outward movement of the first coil spring. In a second embodiment, the clutch disc assembly includes a spring seat retained within the window hole and which engages the first coil spring to limit radial movement of the first coil spring.

REFERENCES:
patent: 4493408 (1985-01-01), Nagano
patent: 4702721 (1987-10-01), Lamarche
patent: 4747801 (1988-05-01), Chasseguet et al.
patent: 4959039 (1990-09-01), Naudin
patent: 5065642 (1991-11-01), Kagiyama et al.
patent: 5218884 (1993-06-01), Rohrle
patent: 5380248 (1995-01-01), Kraus et al.

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