Title:
TWIN LOCK
Document Type and Number:
Japanese Patent JP2003343135
Kind Code:
A
Abstract:
To solve such a problem that, when a plurality of locks are attached to one door, the strength of the door is lowered and the locks must be operated one by one for locking and unlocking.
A twin lock is made to be attached to the door with the notched hole of one lock by combining a surfaced case and a mortise case with one lock, has the crime preventing strengths of two locks, and can be locked and unlocked by operating one lock. In addition, the twin lock can be attached easily to the door without lowering the strength of the door.
Inventors:
SUDO TADAYOSHI
Application Number:
JP2002155664A
Publication Date:
December 03, 2003
Filing Date:
May 29, 2002
Export Citation:
Assignee:
SUDO TADAYOSHI
International Classes:
E05B63/14; E05B65/06; (IPC1-7): E05B63/14; E05B65/06