Title:
CYLINDER LOCK
Document Type and Number:
Japanese Patent JP2003184358
Kind Code:
A
Abstract:
To enhance safety of a lock by providing a cylinder lock which makes picking extremely hard to perform.
A wavy part 21 with a pitch smaller than the width of an unlocking notch 9 at an outside edge of a free end of at least one rotary disc tumbler 14 is formed in a part which is prevented from interfering with the unlocking notch 9; and a recessed groove 19, which can be engaged with the wavy part 21, is formed at an inside edge of a locking bar 6 along the longitudinal direction of the locking bar 6.
Inventors:
NAKAI IKUO
MORI MANABU
MORI MANABU
Application Number:
JP2001385199A
Publication Date:
July 03, 2003
Filing Date:
December 18, 2001
Export Citation:
Assignee:
MIWA LOCK KK
International Classes:
E05B15/00; E05B29/00; (IPC1-7): E05B15/00; E05B29/00
Attorney, Agent or Firm:
Takeo Iida
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