| 摘要 |
PROBLEM TO BE SOLVED: To improve driving force in the same number of revolutions of a drive shaft and a driven shaft by changing a conventional fixed type to a movable type and structuring it to improve a function of the driving gear by providing an inner tooth gear on the inside of a gear box. SOLUTION: This output amplifier of rotational driving force is constituted by providing an inner tooth gear 6 on the inside of a gear box 1, installing three pieces of movable driving gears 5 on a drive shaft rotating plate 3 with equal intervals and engaging them with a driven gear 7 in the center.
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