| 摘要 |
<p>A bicycle hub assembly has a hub axle (40) with a nut (48, 48'), a hub shell (32) rotatably support the hub axle (40) by a bearing assembly (33) disposed between the hub axle (40) and the hub. The hub axle (40) and the nut (48, 48') form a bicycle hub axle assembly (12) that is especially configured to permit easy removal and/or installation of a rear derailleur (26). The hub axle (40) includes a shaft portion (51) having a threaded section (51b) at a first axle end (51a) and a head portion (52) fixed to a second axle end (51c). The nut (48, 48') has a body portion (48a, 48a') with a projection (48b, 48b') extending axially from a frame engaging surface (48c, 48c'), and a threaded bore (48d, 48d') threadedly engaged with the threaded section (51b) of the shaft portion (51) to secure the bicycle hub axle assembly (12) to the bicycle frame (16). The projection (48b, 48b') is configured to engage a slit (16d) in a bicycle frame (16) to prevent rotation of the nut (48, 48') relative to the bicycle frame (16).</p> |
