Tape recorder motor with internal clutch

Details Tape recorder motor with internal clutch Tape recorder motor with internal clutch

H - Electricity

02

K

192/3, 310/46

H02K 7/10 (2006.01) G11B 15/50 (2006.01) H02K 7/102 (2006.01) H02K 7/12 (2006.01) H02K 29/08 (2006.01)

Patent

CA 1112706

ABSTRACT OF THE DISCLOSURE 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.

326942

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