遊星歯車のかみ合いを利用したツーウェイクラッチ

抄録

Roller-type two-way clutches have high torque loss and cannot rotate at high speed because the rollers slip inside. Therefore, it is not suitable for a device that needs to rotate at high speed. In this paper, we propose a two-way clutch mechanism using planetary gear meshing. In the proposed mechanism, a sun gear is not used, and the distance between the planetary gears is variable. When the input shaft rotates, the planetary gears can rotate at a distance from each other. Thus, the mechanism can rotate with low torque loss and high speed. On the other hand, when the output shaft rotates, the two planetary gears engage, and the shaft locks. We made a prototype of Φ44×22 mm and experimentally confirmed that the mechanism works as expected.