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Patent Searching and Data


Title:
KEY LOCK SWITCH
Document Type and Number:
Japanese Patent JP2007123083
Kind Code:
A
Abstract:

To provide a key lock switch having a switch mechanism part interlocked with a rotor in which types of keys are increased by having features in the arrangement positions of a pin arranged in a hole provided in the rotor and having features in arrangement position of vertical grooves and projection pieces provided in the key cylinder corresponding to the pin, thereby making fabrication of a replacement key difficult to improve security.

Pins 4 are arranged in the vicinity of a rotor 5 in which a flange part 5d is formed at the upper part by cutting the side, thereby coming-off of the pins at the flange part 5d of the rotor is prevented, and the remaining pins 4 are prevented from coming off at the top face of the housing 2. Therefore, a vertical groove corresponding to the pin is formed anew at the inner diameter of the key cylinder, thus the types of keys are increased to make fabrication of replacement key difficult and security can be improved.


Inventors:
Seshimo, Yukiaki
Application Number:
JP2005000314263
Publication Date:
May 17, 2007
Filing Date:
October 28, 2005
Export Citation:
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Assignee:
NIHON KAIHEIKI INDUSTRY CO LTD
International Classes:
H01H27/06; E05B17/22
Domestic Patent References:
JPS59190853U
JPH0279772U
JPS5781570A