| 摘要 |
Door closing device with a remotely controlled mechanism, with a horizontal transverse locking bar (B) allowing the remote locking and unlocking of an entry door (K) either from the inside, or from the outside by sending HF waves. It consists: 1) of a dry battery installed outside the device. 2) of an autotransformer installed outside the device. 3) of a portable HF transmitter (2 keys). 4) of two dual-channel receivers (H and G). 5) of a device for driving the movable bar (B). 6) two end-of-travel stop relays (I). 7) of a device for locking the ends of the moving bar (B) by two lock bolts (C) sealed respectively into the jamb lining (J) and the wall. The moving part of the lock bolt (C) at the right end of the bar (B) withdraws so as to allow rotation of the door. The moving part of the lock bolt (C) at the left end of the bar (B) withdraws so as to provide the unlocking of the end of the bar (B), and either manually with the aid of the stud on the moving part of the lock bolt, or by the remote control of the electromagnetic system (F). <IMAGE>
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