Title:
CYLINDER LOCK
Document Type and Number:
Japanese Patent JP2015094195
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a cylinder lock with high operational reliability.SOLUTION: A cylinder lock has: a cylinder lock body 4 in which a plug 2 comprising a special tumbler portion 1 that can open rotation boundaries at two positions is inserted into a case 3; and two types of unlocking keys 6 comprising an unlocking recess 5 for moving the special tumbler portion 1 to each of the rotation boundary open positions. The special tumbler portion 1 locks to the unlocking recess 5 when guided to the rotation boundary open position by one of the unlocking keys 6, and restricts movement in the removal direction of the unlocking key 6.
Inventors:
USUI TOSHIYUKI
SASAKI KOHEI
SASAKI KOHEI
Application Number:
JP2013235982A
Publication Date:
May 18, 2015
Filing Date:
November 14, 2013
Export Citation:
Assignee:
ALPHA CORP
International Classes:
E05B65/02; E05B19/06; E05B19/20; E05B27/06; E05B29/08
Attorney, Agent or Firm:
Masao Yamakawa
Kawaoka Hideo
Kawaoka Hideo
Previous Patent: JP2015094194
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