Motor having gears with means to intermittently rotate a gear th

Details Motor having gears with means to intermittently rotate a gear th Motor having gears with means to intermittently rotate a gear th

1997-06-26

2000-07-04

Williams, C

Machine element or mechanism

Mechanical movements

Rotary to intermittent unidirectional motion

74435, 74437, 310 83, 310 84, H02K 710

Patent

active

060822066

ABSTRACT:
A motor having gears which transmit rotations of a rotor to an output shaft through a gear mechanism made of gear trains, comprises a gear mechanism provided with an intermittent rotation mechanism including a primary gear which rotates upon receiving rotations of the rotor and a secondary gear which meshes with the primary gear and rotates intermittently. The primary gear has a tooth unit for driving the secondary gear, a tooth-shaped hole, which is provided adjacent to one side of the tooth unit and with which a meshing tooth of the secondary gear meshes, and a control unit which is provided adjacent to the other side of the tooth unit so as to stop the secondary gear for a given period such that the primary gear is asymmetric around the tooth unit. When the primary gear rotates in a predetermined direction, the meshing tooth meshes with the tooth-shaped hole to intermittently rotate the secondary gear. When the primary gear rotates in a direction oppoite to the predetermined direction, the meshing tooth contacts the control unit to stop the secondary gear and rotate the primary gear in reverse of the predetermined rotational direction.

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patent: 2881630 (1959-04-01), Opocensky
patent: 3307056 (1967-02-01), Woolley
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patent: 3813952 (1974-06-01), Fehrenbacher
patent: 3883758 (1975-05-01), Lechner
patent: 4104859 (1978-08-01), Ogihara et al.
patent: 4223528 (1980-09-01), Vuilleumier
patent: 4311059 (1982-01-01), Wagble

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