| 摘要 |
A one-way clutch spring ( 6 ) intended to reduce drag torque while retaining the engagement characteristics of one-way clutches. Teeth ( 6 c) extended within pockets ( 6 p) in which engagement members are disposed are bent in advance toward the side which becomes the inner side when they are disposed in an annular space ( 4 ) so as to have bends ( 6 d, 6 e, 6 f) at the proximal end on the column ( 6 b) side and to form an angle of inclination (alpha) of 20°-30° with the base ( 6 a). Further, the teeth have a range of spring constant such that when they are disposed in the annular space to urge the engagement members, the angle of inclination (beta) with the base increases to exceed the angle of inclination (alpha) by an amount of 5° -15°. Further, the height of the front end of the tooth relative to the base is greater than that of the top of the second bend ( 6 e) relative to the base, and the three bends ( 6 d, 6 e, 6 f) each have their center of curvature positioned on the side of an inner ring ( 2 ) with the base used as a reference and their radius of curvature is 0.2 mm -0.6 mm.
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