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Patent Searching and Data


Title:
PICKING GUARD SYSTEM
Document Type and Number:
Japanese Patent JP2005030183
Kind Code:
A
Abstract:

To provide a picking prevention system by adding a simple improvement to a normal cylinder lock.

A movable key 2 is fitted into a keyway in a cylinder to make picking difficult so that a time to an abusive unlocking can be extended. Also, by using a microswitch 6, the abusive unlocking by picking can be distinguished from a normal unlocking using a duplicate key so as to notify of the abusive unlocking before abusive unlocking is performed.


Inventors:
OCHIAI KEIZO
Application Number:
JP2003000293614
Publication Date:
February 03, 2005
Filing Date:
July 11, 2003
Export Citation:
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Assignee:
OCHIAI KEIZO
International Classes:
E05B15/00; E05B45/10; (IPC1-7): E05B15/00; E05B45/10