| 摘要 |
<p>The invention concerns a device for propelling and/or retaining people designed for amusement, sport or training wherein at least a cable (3, 4) or any other similar element is used with an elastic system (12) for propelling and/or retaining one or several users (1). More precisely, it concerns a device comprising means (19, 28) for adapting the return force of the cable (3, 4) according to the weight and/or strength of the user (1).</p> |
