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Title:
CYLINDRICAL AND PERMUTATION COMBINATIONAL LOCK ARRANGEMENT
Document Type and Number:
Japanese Patent JPH0249880
Kind Code:
A
Abstract:

PURPOSE: To prevent damages by providing a clutch means for making a shaft rotatable along with a door knob shaft when a lock chamber shaft is rotation disabled, and making the door knob shaft rotatable, when the shaft is rotatable.

CONSTITUTION: When a lock chamber 15 is in an unlocked position and an outer door knob 11 is rotated, its torque is transmitted from a handle shaft 21 to an outer driver 34 via a clutch 19, via a lock chamber shaft 17 and a connector 40. When the outer driver 34 is rotated, a drive member 36 engages the steps of a latch retractor 25 to retreat the retractor 25, which in turn further retracts a latch so that a door is open. When the lock chamber 15 is in a locked condition and the door knob 11 is rotated, the shaft 21 is rotated but the shaft 17 is not rotated, and the clutch 19 slips to keep the door from opening.


Inventors:
AARON EMU FUITSUSHIYU
AREKUSANDAA BURANOOBUAA
ZUGORUZAKU REZUZEKU
Application Number:
JP1989000120245
Publication Date:
February 20, 1990
Filing Date:
May 12, 1989
Export Citation:
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Assignee:
IRUKO YUNIKAN INC
International Classes:
E05B55/14; E05B17/00; E05C1/16; E05B13/00; E05B15/00; (IPC1-7): E05B55/14



 
Next Patent: JPH0249881