| 摘要 |
The invention relates to an anti-break-in device. This device comprises, for actuating an electromechanically controlled bolt 1, an electronic circuit 7, as well as a detector 5 which is sensitive to the state of closure or opening of a door 2 to be protected and with which a first commutator 6 is associated. The electronic circuit is arranged such that the door is locked, via a control unit 13, only when an attempted break-in has been detected by a noise sensor 8, unlocking occurring by means of a remote control 17 which can, at a distance, control the unit 13 and open the circuit 7 via a second commutator 19. The invention applies to the protection of doors and other closure means. <IMAGE>
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