| 摘要 |
<p>The invention, relates to an adjusting device, comprising an inner tubular body (7), an outer tubular body (6) that can slide concentrically over the inner tubular body so that the inner tubular body and the outer tubular body can slide telescopically from a retracted position to an extended position, an actuator (15) to move the inner tubular body and the outer tubular body along the longitudinal axis in relation to one another and a supporting tube (10) which can slide concentrically on the inside of the outer tubular body.</p> |
