One-way clutch for a reduction-geared motor

Details One-way clutch for a reduction-geared motor One-way clutch for a reduction-geared motor

1989-11-03

1990-12-25

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

74425, 192 137, 192 8R, 310 78, H02K 7108, F16D 704

Patent

active

049805916

ABSTRACT:
A one-way clutch for a reduction-geared motor having a reversible electric motor and reduction gears allows an output shaft thereof to rotate in a normal direction and firmly prevents the output shaft from rotating in a reverse direction when the reversible electric motor is not fed. The one-way clutch includes a transmission gear supported on the output shaft wherein a sawtooth is provided on one side of the transmission gear. A clutch, axially movable relative to the output shaft, has a sawtooth facing the sawtooth of the transmission gear. The clutch also provides a radially located rotation-prevention portion. A compression spring is included for urging the clutch for the transmission gear in a direction along the axis of the output shaft. A stopper pin in the gear casing is inserted into the rotation prevention portion of the clutch. An electromagnet in the gear casing urges the clutch in a direction opposite to the direction urged by the compression spring when the electromagnet is fed. The clutch permits fail-safe closing of a power window, sunroof, etc.

REFERENCES:
patent: 3562565 (1971-02-01), Higashino
patent: 4430592 (1984-02-01), Manktelow
patent: 4510405 (1985-04-01), Carroll et al.
patent: 4534233 (1985-08-01), Hamaguchi
patent: 4643040 (1987-02-01), Adam et al.
patent: 4652781 (1987-03-01), Andrei-Alexandru et al.

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