Electric motor with rotation detecting mechanism

Details Electric motor with rotation detecting mechanism Electric motor with rotation detecting mechanism

1994-10-12

1996-03-19

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 68B, H02K 710

Patent

active

055005640

ABSTRACT:
An electric motor is provided with an armature, an output shaft rotatable according to the rotation of the amature through a worm gear pair, and a rotation detectiong mechanism which comprises a rotary magnet rotatable together with the output shaft through an intervenient member and a reed switch for detecting rotation of the output shaft according to alterarion of the magnetic force caused by the rotation of the rotary magnet, and the intervenient member is fixed to the output shaft so as to form a predetermined play between the output shaft and the rotary magnet and transmit the rotation of the output shaft to the rotary magnet through the play.

REFERENCES:
patent: 4935652 (1990-06-01), Maxa
patent: 5184038 (1993-02-01), Matsui et al.
patent: 5272402 (1993-12-01), Blaser et al.
patent: 5291130 (1994-03-01), Kendzior

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