Title:
LOCKING AND UNLOCKING STATE MONITORING DEVICE OF LOCKING DEVICE FOR BUILDING
Document Type and Number:
Japanese Patent JP2002115429
Kind Code:
A
Abstract:
To provide the locking and unlocking state monitoring device of a locking device for a building, capable of improving crime prevention.
A sensor device 2 is provided with first and second switches 12, 13, and the locking and unlocking signal of a crescent lock (not shown) is output, on the basis of on and off states of the first lead switch 12. In addition, the sensor device 2 outputs an alarm signal, when both the lead switches 12, 13 are turned on. A monitoring device 3 gives an alarm from an alarm device 30, when the locking and unlocking signal and the alarm signal are received in warning mode.
More Like This:
Inventors:
KATO AKIO
Application Number:
JP2000304993A
Publication Date:
April 19, 2002
Filing Date:
October 04, 2000
Export Citation:
Assignee:
TOKAI RIKA CO LTD
International Classes:
E05B45/14; E05B65/08; (IPC1-7): E05B45/14; E05B65/08
Attorney, Agent or Firm:
Hironobu Onda (1 person outside)
Previous Patent: LOCK INCAPABLE OF BEING PICKED BY BLOCKING COMBINED KEY HOLE THROUGH LOCK OF REMOTE KEY
Next Patent: TRAFFIC REGULATION SYSTEM
Next Patent: TRAFFIC REGULATION SYSTEM