Title:
LOCKING DEVICE
Document Type and Number:
Japanese Patent JP3829901
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a locking device having a simple configuration for performing free locking and unlocking by releasing a lock mechanism by using a security key, for which the lock mechanism cannot be released by ordinary keys because the limitation is applied to the locking and unlocking.
SOLUTION: A magnet is embedded in or magnetism is given to a security key 50, a lock pin 31 in a lock mechanism is constituted with a magnetic material, lock state of the lock pin 31 cannot be released in the use of an ordinary key even though a cylinder lock can be unlocked, and lock state of the lock mechanism 30 can be released by pulling the lock pin 31 with a magnetic absorbing force by constraining an output shaft 24 of the cylinder lock main body 20 and using the security key 50 thereby permitting the operation of the output shaft 24 of the cylinder lock main body 20 in a free state.
Inventors:
Shunji Mori
Application Number:
JP15151999A
Publication Date:
October 04, 2006
Filing Date:
May 31, 1999
Export Citation:
Assignee:
OMRON Corporation
International Classes:
E05B19/26; E05B35/10; (IPC1-7): E05B35/10; E05B19/26
Domestic Patent References:
| JP2004124401A | ||||
| JP2001336320A | ||||
| JP2003161065A |
Attorney, Agent or Firm:
Shinichi Iizuka