| 摘要 |
<p>The plate (1) has a catch case (2) engaged with a catch lever (4) connected with a connecting rod fitting of a window sash. A movable catch element (6) is formed via a catch base (8) parallel to a blind frame folded edge. The catch base is moved away from the catch case into a position that overlaps the blind frame folded edge, and forms another catch case. The latter catch case is arranged parallel to the former catch case, and forms a plane of engagement with the former catch case in a direction of a longitudinal axis of the blind frame in the direction of the window sash.</p> |
