| 摘要 |
<p>In adjustable structure with a drive unit (8), e.g., an actuator driven by an electric motor and controlled via a control unit, a jamming protection arrangement is needed in certain connections. A solution is provided to a jamming protection arrangement, based on a piezo element (20) incorporated in the structure, alternatively in the drive unit. The piezo element is connected with the control unit, which is constructed such that the drive unit is stopped or reversed if a deviation occurs in the force on the adjustable element (5) of the structure.</p> |
