Damper disc assembly

Details Damper disc assembly Damper disc assembly

2004-09-28

2008-11-04

Binda, Greg (Department: 3679)

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

Torque transmitted via flexible element

Coil spring

Reexamination Certificate

active

07445553

ABSTRACT:
A damper disc assembly includes a drive plate rotatably connected to a driving power source, a driven plate connected to a driven side and being rotatable relative to the drive plate, a damping mechanism adjusted to absorb an impact caused between the drive plate and the driven plate in response to the relative rotation between the drive plate and the driven plate. The damping mechanism positioned at the driven plate. The damping mechanism includes a coil spring, and a torsion damper disposed in the coil spring. The torsion damper includes at least one guiding portion having a predetermined clearance relative to an inner side of the coil spring and a cushion portion integral with the at least one guiding portion inside the guiding portion.

REFERENCES:
patent: 330445 (1885-11-01), Vose
patent: 937346 (1909-10-01), Webster
patent: 4148200 (1979-04-01), Schallhorn et al.
patent: 4714448 (1987-12-01), Focqueur et al.
patent: 4789374 (1988-12-01), Suzuki
patent: 6227976 (2001-05-01), Rohs et al.
patent: 2002/0173361 (2002-11-01), Uehara
patent: 09229138 (1997-09-01), None

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