To provide a one-way clutch capable of enhancing biasing of a compression plate spring folded zigzag, at a low temperature.
In a one-way clutch 1 including an inner ring 2, an annular outer ring 3 disposed at a radial outer side of the inner ring 2, a pocket 4 formed on an inner peripheral face of the outer ring 3 and formed into a wedge-shape in the circumferential direction with an outer peripheral face of the inner ring 2, a roller 5 disposed in the pocket 4, and a compression plate spring 6 biasing the roller 5 in the narrow direction of the pocket 4. The compression plate spring 6 has faces 61 in parallel with a rotating shaft, and folded portions 62 folded from radial end portions of the faces 61, and the faces 61 and the folded portions 62 are alternately continued to form the zigzag shape. Spring addition members 7 are integrally formed on the folded portions 62, and the spring addition members 7 enhance the biasing by the compression plate spring 6 on the basis of difference in shrinkage factors to the compression plate spring 6 at a low temperature.
MAEDA TAKAHIRO
KUBO SHINJI
MASUDA HIROYUKI
SETO ERI
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