| 摘要 |
A unidirectional coupling device, comprises: a driving element (1) and a driven element (2) which are coaxially mounted and relatively rotatable and a set of balls (3) forming rolling connection elements. The balls (3) are interposed between axially facing surfaces of said driving and driven elements and are housed in races (4) which are inclined both radially and axially with respect of said surfaces. The device may be used in association with the hand control lever of a bicycle with change-speed gears. <IMAGE> |
