DETACHABLE CYLINDER LOCK

PROBLEM TO BE SOLVED: To provide a detachable cylinder lock, in which even an unskilled person can exchange a cylinder easily, size in the internal-cylindrical axial direction of a cylinder detachable device is reduced, and key difference is not reduced. SOLUTION: In the detachable cylinder lock, th...

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Bibliographic Details
Main Author OKUNO KEIJI
Format Patent
LanguageEnglish
Published 26.09.2000
Edition7
Subjects
ACCESSORIES THEREFOR
FIXED CONSTRUCTIONS
HANDCUFFS
KEYS
LOCKS
SAFES
WINDOW OR DOOR FITTINGS
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Summary:PROBLEM TO BE SOLVED: To provide a detachable cylinder lock, in which even an unskilled person can exchange a cylinder easily, size in the internal-cylindrical axial direction of a cylinder detachable device is reduced, and key difference is not reduced. SOLUTION: In the detachable cylinder lock, the joining sections of a changeover pin 12 and a driver pin 13 are aligned with the second shear line S2 between an external cylinder 5 and a collar 7 unified with an internal cylinder when a detachable key 16 is inserted into a keyhole 9, the collar 7 can be rotated relatively to the external cylinder 5 together with the internal cylinder, and an engaging pin 18 is engaged with a recessed section 8 formed to the outer circumference of the collar by insertion by the resiliency of an engaging pin spring 19, thus extracting the outer end of the engaging pin from the engaging hole 23 of a striker, then liberating a cylinder from the striker.
Bibliography:Application Number: JP19990067218