| 摘要 |
In a gymnastic apparatus, the actuator ( 22 ) is fitted in fixed angular position to a first shaft ( 16 ) to oscillate from initial to final position, normally maintained in initial position by a weight unit ( 8 ) and connected to the weight unit ( 8 ) by a driving device ( 33 ) provided with a cam ( 38 ) splined on a second shaft ( 34 ) transversal to the first shaft ( 16 ), two gears ( 37 ) are joined in angular position to the first and second shaft ( 16, 34 ), respectively.
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