Rotary shafts – gudgeons – housings – and flexible couplings for ro – Torque transmitted via flexible element – Coil spring
Patent
1984-08-15
1986-01-07
Levy, Stuart S.
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Torque transmitted via flexible element
Coil spring
1921062, 464 68, F16D 314
Patent
active
045631654
ABSTRACT:
A damper disc assembly includes an outward flange of a hub that is divided into an inner peripheral portion and an outer peripheral portion, an external tooth of the flange inner peripheral portion being meshed with an internal tooth of the flange outer peripheral portion with a circumferential clearance left therebetween. The inner peripheral portion and the outer peripheral portion of the flange are elastically interconnected through a weak first torsion spring extending in a circumferential direction. Side plates are disposed on both sides of the flange. The flange outer peripheral portion is elastically interconnected with the side plates through a strong second torsion spring extending in the circumferential direction. A locking member enters the clearance between the external tooth and the internal tooth when centrifugal force generated by rotation of the damper disc assembly acts on the locking member. A spring mechanism urges the locking member in the direction extending out of the clearance, and rigidity of the spring mechanism is determined so that the rigidity overcomes the centrifugal force at a low rotation speed and the centrifugal force overcomes the rigidity at a high rotational speed.
REFERENCES:
patent: 3296887 (1967-01-01), Larsen
patent: 4185728 (1980-01-01), Gatewood
patent: 4396103 (1983-08-01), Loizeau
patent: 4430064 (1984-02-01), Lamarche
patent: 4433770 (1984-02-01), Loizeau et al.
Kabushiki Kaisha Daikin Seisakusho
Levy Stuart S.
Stodola Daniel P.
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