A method is provided for retrofitting an existing dead-bolt assembly with an electrically operated actuator (12, 112, 212, 312, 800). The electrically operated actuator automatically operates the dead-bolt assembly while preserving manual operation of the lock. The actuator assembly has rotating mea
A method is provided for retrofitting an existing dead-bolt assembly with an electrically operated actuator (12, 112, 212, 312, 800). The electrically operated actuator automatically operates the dead-bolt assembly while preserving manual operation of the lock. The actuator assembly has rotating means for rotation of the drive bar (18), which in turn extends or retracts the bolt (14) of the lock. The rotating means may be a lever (28, 128, 238, 328, 438, 818) attached to the drive bar (18) that is pivotable about the axis of rotation of the drive bar (18). The actuator assembly has driving means that forces the rotating means to rotate. The driving means is responsive to an electrical signal, which, for example, may be initiated from a remote-controlled transmitter (502, 602). The driving means may include a motor (20, 120, 220) for rotating a rod (22, 122, 222, 322) that in turn operates an assembly that rotates or drives the rotating means. In response to an electrical signal, the driving means actuates the rotating means to affect either a locking or unlocking operation, which operations are always completed by placing the actuator assembly in a state whereby the bolt of the lock may subsequently be extended or retracted manually, or automatically by the driving means.
대표청구항▼
[ What is claimed is:] [1.]1. An electrically operated actuator in combination with a dead bolt assembly, the dead bolt assembly comprising a lock having a drive bar and a bolt, the bolt being operably coupled to the drive bar such that rotation of the drive bar extends and retracts the bolt linearl
[ What is claimed is:] [1.]1. An electrically operated actuator in combination with a dead bolt assembly, the dead bolt assembly comprising a lock having a drive bar and a bolt, the bolt being operably coupled to the drive bar such that rotation of the drive bar extends and retracts the bolt linearly, the actuator comprising:means for rotating the drive bar to extend and retract the bolt;means for driving said rotating means, said driving means being responsive to an electrical signal;wherein said electrical signal is generated by:a wireless transmitter that transmits a request to actuate the actuator;a wireless receiver that receives the request to actuate the actuator; anda control circuit, operably connected to said wireless receiver, the control circuit providing said electrical signal to said driving means if the request is valid; andwherein said rotating means comprises:a resilient lever attached to the drive bar, said resilient lever being pivotal about an axis that is coaxial to an axis of rotation of the drive bar; andwherein said driving means comprises:a motor capable of rotating a threaded rod that extends from said motor;a threaded member screwed onto said threaded rod;a guide preventing rotation of said threaded member; andsaid threaded member being adapted to frictionally engage and to rotate said resilient lever.
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