Title:
【発明の名称】改善されたシリンダ錠システム
Document Type and Number:
Japanese Patent JP2001514714
Kind Code:
A
Abstract:
A cylinder lock with a resiliently biased auxiliary locking pin, the auxiliary locking pin having a first end which functions as a tenon and a second end which defines a cam follower. The first end of the auxiliary locking pin extends into the keyway and is engaged by a cooperating key blade having a longitudinal slot which defines a mortise. The second end of the auxiliary locking pin normally engages a recess in the inner diameter of the lock shell, a camming surface being provided at one side of the recess. The depth profile of the mortise increases from an initial tenon receiving depth, at the blade tip, to a functional depth, at a point displaced from the blade tip, where the locking pin is partially withdrawn from the shell recess to enable rotation of the lock core relative to the shell. Complete pin withdrawal commensurate with unlocking, in response to camming action instituted upon lock core rotation, is permitted by an aperture in the base of the key blade slot which receives a shaped pin extension which projects from the first end of the auxiliary locking pin.
More Like This:
| WO/1997/011245 | IMPROVED KEYS FOR CYLINDER LOCKS |
| JPS53106299 | LOCK PREVENTING WRENCHING AND KEY USED SAID LOCK |
Inventors:
Charles W Jr. Eden
The Riolt, Kenny Tea
The Riolt, Kenny Tea
Application Number:
JP53222898A
Publication Date:
September 11, 2001
Filing Date:
January 26, 1998
Export Citation:
Assignee:
International Security Products Incorporated
International Classes:
E05B19/06; E05B27/04; E05B19/08; E05B27/00; E05B19/00; (IPC1-7): E05B27/04; E05B19/06
Attorney, Agent or Firm:
Akashi Masatake