| 摘要 |
PROBLEM TO BE SOLVED: To provide a one-way clutch having a small pressure supporting stress applied, able to be formed easily from a reinforced metal, and capable of being embodied at low cost with a high reliability. SOLUTION: The one-way clutch of ratchet type comprises a cam plate furnished with a cam surface arranged with a spacing reserved in the angle direction around the center axis and a rocker plate having pockets arranged with a spacing reserved in the angle direction around the center axis, wherein each pocket includes a surface having a rotary shaft placed in the pocket. Rocker placed in each pocket rotates round the rotary axis in such a way as approaching the cam surface and then separating from the cam surface. The rocker has a center of mass and is arranged relative to the rotary shaft so that the acute angle formed between the first line extending in the radial direction upon passing the rotary shaft from the center axis and the second line passing the center of mass and the rotary shaft is 20 degs. or less when the rocker separates from the cam surface and retreats into the pocket. COPYRIGHT: (C)2007,JPO&INPIT
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