192 clutches and power-stop control – Elements – Thrust members – retarders – and stops
Patent
1986-10-31
1988-04-19
Bonck, Rodney H.
192 clutches and power-stop control
Elements
Thrust members, retarders, and stops
192110R, F16D 1350, F16D 1371
Patent
active
047383445
ABSTRACT:
A friction clutch wherein a clutch disc is disposed between a flywheel, and a pressure plate fixed to the flywheel via a clutch cover secured to the flywheel, such that the clutch disc is normally held in pressed contact with the flywheel and pressure plate, with the pressure plate biased by a diaphragm spring against the clutch disc. The diaphragm spring engages the clutch cover at its outer end and engages a releasing member at its inner end, such that the spring normally biases the pressure plate at its intermediate portion. The clutch disc is released from the flywheel and pressure plate when the releasing member is operated to free the pressure plate from the biasing action of the spring. The friction clutch has a stopper device for limiting a maximum permissible length of axial displacement of the pressure plate toward the clutch disc due to wear of the clutch disc. This length is determined to the smaller than X.multidot.a/b, where "X" is a distance between the releasing member and the clutch disc; "a" is a distance between a point of engagement of the spring with the clutch cover and a point of abutment of the spring on the pressure plate; and "b" is a distance between points of engagement of the spring with the clutch cover and releasing member.
REFERENCES:
patent: 3489256 (1970-01-01), Binder et al.
patent: 3640361 (1972-02-01), Spichala
patent: 3712435 (1973-01-01), Kraus
patent: 4558771 (1985-12-01), Despres
patent: 4607738 (1986-08-01), Muller
patent: 4613025 (1986-09-01), Despres
patent: 4655334 (1987-04-01), Valier
Maruyamano Satoru
Ohtani Hisao
Bonck Rodney H.
Lorence Richard M.
Toyota Jidosha & Kabushiki Kaisha
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