초록 ▼

An electronic digital combination lock including a frame supported within the interior of a door; a bolt mechanism which moves in relation to the frame to be retracted from a door jamb to open the door; a logic circuit which generates a control signal in response to entry of a predetermined combinat

An electronic digital combination lock including a frame supported within the interior of a door; a bolt mechanism which moves in relation to the frame to be retracted from a door jamb to open the door; a logic circuit which generates a control signal in response to entry of a predetermined combination signal, including push button switches which are housed within the door interior and produce bits when selectively depressed; and, a rotatable handle member which is coupled to the frame from the outside surface of the door to activate the bolt mechanism, including a tube that is coupled adjacent the push button switches and is selectively rotatable to depress each of the switches to generate the predetermined combination signal. The handle member including the tube has only limited rotational movement until the correct combination signal is entered, at which time an electromagnetic and lever mechanism is energized to release the handle member for extended rotation to retract the belt mechanism.

대표청구항 ▼

A electronic digital combination lock, comprising: (a) a frame; (b) bolt means for moving in relation to said frame; (c) electronic circuit means, responsive to a predetermined combination signal, for generating a control signal, including switch means, selectively actuatable, for generating digital

A electronic digital combination lock, comprising: (a) a frame; (b) bolt means for moving in relation to said frame; (c) electronic circuit means, responsive to a predetermined combination signal, for generating a control signal, including switch means, selectively actuatable, for generating digital signals, said switch means being supported adjacent said frame to be unexposed to a user of the lock; (d) first handle means, coupled to said frame, for moving said bolt means, including means, selectively actuatable, for controlling said switch means to produce the predetermined combination signal; (e) means, responsive to the control signal, for permitting said first handle means to move said bolt means a certain distance; (f) second handle means for moving said bolt means the certain distance; and (g) key operated means for moving said bolt means the certain distance, said first handle means, said second handle means and said key operated means moving said bolt means independently of one another.