| 摘要 |
<p>A bicycle one-way rotation transmission mechanism (56) is used in a bicycle hub (12) having a hub axle (40). The one-way rotation transmission (56) has an inner tubular (50) member rotatably mounted on the hub axle (40), an outer tubular member (51) arranged around the inner tubular member (50), and a one-way clutch (53) disposed between the inner and outer tubular members. The one-way clutch (53) has a plurality of ratchet teeth (60) provided on an internal circumferential surface of the outer tubular member (51); at least two clutch pawls (61) arranged on the inner tubular member (50) to freely move between an engagement position and a disengagement position; and two force applying members (62a, 62b) applying forces against alternate ones of the clutch pawls (61) to urge the respective clutch pawls (61) to the engagement positions.
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