摘要 |
The device has a stand plate (2) supporting a person to be trained, and movably arranged by a spring device (3) such that the spring device is brought from a resting position by impact of weight. The spring device comprises spring elements (6-9) that are movably arranged regarding a position. The spring elements comprise a spiral spring (29), and are displaced along lower guidance units (10, 11) and upper guidance units (12, 13). Threaded spindles (16-19) are provided for linear movement of the spring elements and connected with a remote controllable electrical motor.
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