| 摘要 |
<p>The device has a door frame section (D) provided with a longitudinal enveloping part (PE) that covers a longitudinal excrescent part (PX) of opening frame section (O). The enveloping part is equipped with a reduction unit to reduce a spacing clearance (J) between the sections, so that a weighing between edges of the sections in order to separate the edges to exit a bolt (PN) from a housing. The bolt generates a contact between the enveloping part and the excrescent part to prevent exit of the bolt from the housing and prevent forced opening of a gate.</p> |
