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Title:
UNAUTHORIZED UNLOCKING PREVENTING APPARATUS, AND FITTING EQUIPPED WITH THE APPARATUS
Document Type and Number:
Japanese Patent JP2003020830
Kind Code:
A
Abstract:

To provide an unauthorized unlocking preventing apparatus which has crime-preventive efficiency and anti-theft properties imparted thereto, and can be easily built in an existing fitting, with improved mounting efficiency, and to provide the fitting equipped with the apparatus.

The unauthorized unlocking preventing apparatus includes an opening/closing member 5 for openably covering a key insertion port 27 of a cylinder lock 3, an outdoor case 4a arranged at an outdoor end of the cylinder lock 3, an indoor case 4b arranged at an indoor end of the cylinder lock 3, a first detecting section 7 for detecting an opening state of the opening/closing member 5, a second detecting section 8 for detecting unlocking of the cylinder lock 3, and a control section 10 for detecting that the cylinder lock 3 is not unlocked within a predetermined period after the opening/closing member 5 is opened, and issuing a warning from an alarm 9. The control section 10 and a power source section 50 for the same are arranged in the indoor case 4b or the outdoor case 4a.


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Inventors:
HOZUMI RYOICHI
Application Number:
JP2001000205641
Publication Date:
January 24, 2003
Filing Date:
July 06, 2001
Export Citation:
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Assignee:
TOSTEM CORP
International Classes:
E05B45/10; G08B13/06; (IPC1-7): E05B45/10; G08B13/06
Domestic Patent References:
JPS52120576A1977-10-11
Attorney, Agent or Firm:
後藤田 章