NON-CONTACT TYPE ELECTROMAGNETIC CLUTCH AND DOOR LOCK DRIVE DEVICE WHICH USES THE NON-CONTACT TYPE ELECTROMAGNETIC CLUTCH

摘要

PROBLEM TO BE SOLVED: To simplify a structure of a non-contact type electromagnetic clutch, disconnect its power instantaneously, and make it possible to use it in a door lock drive device. ;SOLUTION: In an electromagnetic clutch 4 which is used in a door lock drive device 1, a rotator on output side 15 is arranged on outer periphery of a rotator on input side 8 in which rotation force of a drive motor 2 is transmitted for rotation, and a plurality of extreme teeth 8b provided on outer periphery of the rotator on input side 8 and a plurality of extreme teeth 15a provided on inner circumference of the rotor on output side 15 are arranged by opposing mutually through a minute gap G1. When electricity is conducted into a coil 10 held by a stator 11, a magnetic flux which passes the stator 11 which is a magnetic body, the rotator on output side 15, and the rotator on input side 8 is generated. Since the extreme teeth 8b of the rotator on input side 8 and the extreme teeth 15a of the rotator on output side 15 attract mutually through the minute gap G1, the rotator on input side 8 and an output shaft assembly 9 provided with the rotator on output side 15 operate integrally.;COPYRIGHT: (C)1998,JPO