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Generated January 23, 2018

Clutch mechanism for electronic locks

Patent Number: 6,845,642

Patent Information

This mechanism is intended for being located in the inner escutcheon of the lock and its purpose is to minimize the forces transmitted, thereby preventing premature wear, as well as being able to be adaptable to any lock. Its structure permits to minimize the turning of the handle or outer operating knob under no load. The outer escutcheon (3) holds the key reader (4) and an outer knob (5) while the inner escutcheon (6) contains the electronic control circuit (7) powered by batteries (8), the clutch mechanism (9) and an inner operating knob (10). Exiting from the clutch mechanism (9) are two concentric shafts (21, 26), one of which acts on the tumbler (2) of the lock and the other (26) which rotates freely in its interior and to which the outer knob (5) is connected. A validated key activates an electric motor (51) or similar which displaces a collar (28) causing the clutch element (27) to bring both concentric shafts (21, 26) together temporarily, forming a single unit and permitting the opening of the lock.
Patent Number: 6,845,642
Issue Date: 2005-01-25

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Patents cited by this patent

Patent Title
6,334,348 Electronic lock
6,189,351 Door lock with clutching mechanism
6,041,630 Clutch mechanism for a lock
6,021,654 Door lock with clutch arrangement
5,960,656 Electronic lock
5,934,117 Lock with a clutching outer handle
5,732,580 Axially disengageable lock for a motor vehicle locking system

Patents that cite this patent

Patent Title
9,217,264 Low energy clutch for electronic door lock
8,939,477 Clutch mechanism for a lock assembly
8,904,836 Handle fixing mechanisms and methods of making and using thereof
8,899,081 Electromechanical lock
8,683,833 Electronic access control handle set for a door lock
8,539,802 Movement transmission device and method
8,516,865 Clutch mechanism for electromechanical lock cylinders
8,456,277 Locking cylinder and closing method
8,201,858 Locking system for mortise lock base
8,011,217 Electronic access control handle set for a door lock
8,001,818 Clutch mechanism couplable to door locks with locking bolt operated by handles or knobs
7,966,854 Clutch mechanism applicable to electromechanical cylinders for locks
7,963,134 Deadbolt lock
7,918,117 Fastener shield device for locks
7,908,896 Biometric deadbolt lock assembly
7,845,201 Electronic access control device
7,827,837 Electro-mechanical lock assembly
7,770,423 Electro-mechanical lock structure
7,721,576 Lock cylinder opening system and method
7,698,919 Locking device
7,543,469 Mechanism of electronic door lock
7,231,791 Electric cylinder for actuating a door lock and a cylinder door lock
7,155,945 Lock having a lockable handle shaft
7,069,755 Deadbolt lock with electronic touch-key
7,007,526 Electronic clutch assembly for a lock system

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