| 摘要 |
PURPOSE: A reduction gear is provided to elevate a deceleration ratio of a rotary device such as an electromotor at a small space and to obtain a strong rotational force proportional to a large reduction ratio. CONSTITUTION: A reduction gear includes an input shaft(21), an output shaft(36), a pinion(11) connected to the input shaft, a motor internal gear(14) posed on the same planar surface by using the same shaft with the pinion, a flange(23) fixing and supporting the motor internal gear, at least one of motor gears(12) rotating and revolving by being interlocked with the pinion and the motor internal gear, at least one of slave gears(13) rotating by being interlocked with the pinion, a gear fixing body(25) supporting the rotating shafts of the motor gears and the slave gears and rotationally supported by the flange, a slave internal gear(15) rotating by being interlocked with the slave gears and an output shaft connected to the slave internal gear. Herein, the motor gears and the slave gears revolve integrally.
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