| 摘要 |
<p>The present invention relates to a deadlatch device for doors of various types, comprising a latch apparatus such as to allow the door to be closed and opened even in the presence of hooking pins of the non-protruding type, fixed to the upright of the door, or also in the presence of the upright only, strengthened in the hooking area. The device according to the present invention is further equipped with means adapted to allow it to open even in the event of breakage of the return spring of the closing lever thereof. Finally, the device according to the present invention is adapted to support longitudinal and transverse loads and comply with the current safety regulations concerning resistance to longitudinal load and transverse load.</p> |
