| 摘要 |
<p>An improved stretching device for bicycle pedaliers in the pushing phase, comprising: pedaliers (1) with housings (2) for containing bearings (6) kept in position by a blocking bottom (3), and with extroversions (4) with bushings (5) carrying pedals (P); bearings (6), contained inside said pedaliers (1), provided with passing-through holes (7), eccentric to the geometrical centre of the same, such as to allow the insertion thereof onto the hub (M) of a bicycle (B), and with passing-through holes (7') such as to allow the application of the same onto supports (8, 9) on the frame (T) of the bicycle (B), by means of known blocking means (10); lever arms (11), having the fulcrum on the pin (P) of the hub (M), provided with movable tabs (12) longitudinally sliding in grooved guides (13) by means of linear bearings (14); movable tabs (12), sliding on lever arms (11), linked to the pedaliers (1) by the insertion of pedal-carrying bushings (5) in the passing-through holes (15) at the ends thereof; a crown (C), shaped on purpose in such a way as to allow the working of said pedaliers (1) and said lever arms (11) witout interfering with the shift group and with the transmission gear usually provided on racing bicycles.</p> |
