| 摘要 |
FIELD: construction.SUBSTANCE: safety lock (1) with locking plates (7), in particular, for armoured doors, comprises a system against break-in, including moving facilities, which may automatically move at least one locking plate (7) into the position of maximum lift, when at least one locking plate (7) is exposed to a blocking force in direction of crossbar (5) retraction.EFFECT: improved design.6 cl, 3 dwg |
