Motor with integral clutch

Details Motor with integral clutch Motor with integral clutch

1979-05-02

1981-09-29

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310156, 310268, H02K 710

Patent

active

042925576

ABSTRACT:
A flat drive motor, operative to transmit torque from a rotor to a drive shaft uses the attraction of a rotor magnet for a magnetic material to apply a fixed normal force to an integral friction clutch. When overloaded, the friction clutch slips with a controlled friction proportional to the normal force to prevent the development of excessive torque and to permit the rotor to turn at a normal speed while the drive shaft is slowed or stopped to prevent excessive current in the motor drive coils.

REFERENCES:
patent: 3732447 (1973-05-01), Perhats
patent: 3819966 (1974-06-01), Noguchi
patent: 3845339 (1974-10-01), Merkle et al.

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