Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1989-03-09
1990-01-09
Salce, Patrick R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 41, 310162, 188 821, 744115, H02K 710, H02K 1900, F16D 6300, F16H 5710
Patent
active
048930385
ABSTRACT:
A device for limiting the direction of rotation of a synchronous motor includes a gear connectable to a rotor of the motor for being rotated. A shaft rotatably supports the gear in such a manner that the gear is movable along the axis of the shaft. A pair of fixed members are fixed to a casing and support the shaft. The gear is interposed between the pair of fixed members, and one of the fixed members has a first engaging portion on a surface thereof facing the gear. A first projection is integrally formed on a surface of the gear facing the one fixed member, the projection being engageable with the engaging portion when the gear is rotated. The projection is engageable with the engaging portion to move the gear along the axis of the shaft to allow the rotation of the gear when the rotor is rotated in a normal direction. The projection is brought into abutting engagement with the engaging portion to prevent the rotation of the gear when the rotor is rotated in a reverse direction. This abutting engagement causes the gear in the opposite direction due to a reaction force so that the rotor is caused to rotate in its normal direction.
Kabushiki Kaisha Sankyo Seiki Seisakusho
La Balle C.
Salce Patrick R.
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