Sughrue, Mion, Zinn, Macpeak & Seas
Electric motor with rotation detecting mechanism
 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. 
Jidosha Denki Kogyo Kabushiki Kaisha
H H
H02K H02K
inventional inventional
Shuji Manabu
Sekine Sano