| 摘要 |
<p>The door is designed so that one leaf closes before the other which can then be locked. The locking mechanism has at least one axially movable first push rod (5) and a further locking element. A movable locking member (9) is mounted between the push rod and the locking element and in normal operation permits only movement of the first push rod or only movement of the further locking element. An overload protection is provided to guard against faulty sequence.</p> |
