| 摘要 |
A wheel lock assembly for reversibly rotatably mounting a wheel assembly which comprises an inner race and an outer race and bearings disposed therebetween on a trolley which includes a central bore having a central axis and having a substantially annular recess eccentric relative to the central bore. The wheel lock assembly includes an axle member, the axle member including a cylindrical body portion having a longitudinal axis and an enlarged substantially annular head portion eccentric relative to the longitudinal axis. The wheel lock assembly further includes a cap member and locking screw for fastening the cap member to an end of the body portion of the axle member to draw the cap member into frictional engagement with the inner face and to draw the head portion of the axle member into mating engagement with the recess of the trolley arm.
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