| 摘要 |
<p>The plate has a locking plate (4) arranged in a locking position for blocking pivoting motion of side wings (2, 3) with a locking section at a pivoting region of a partial region of the wings. The plate is displaced against force of a return spring (5) from the locking position into a release position. The locking section is formed such that the side wings are not pivoted in the locking position, where the locking section is arranged outside a pivoting region of the side wings after displacement of the locking plate into the release position, so that the side wings are pivoted outwardly.</p> |
