| 摘要 |
<p>The system has a roll-over frame (1) that is movable from a lowered starting position to an extended working position. A release mechanism (11) is designed as a mechanism for centering the roll-over frame in the starting position. An inner surface (7) of a circular-cylindrical retainer (4) encloses a shell surface (13) of the release mechanism in the starting position of a roll-over mechanism.</p> |
