Patent ID: 6341513
Filing Date: 2002-01-29
Classification: E05B,G07C,Y10S,Y10T

Abstract:
A two-in-one combination safe lock comprising a mechanical lock device and an electronic lock device in a box, wherein:said box is mounted at a door edge of a safe and is separated into a first cabin and a second cabin by a lining; a rectangular slot is disposed on a top of said box for accommodating a lock latch that moves up and down; the mechanical lock device includes a shaft inserted through the first cabin of the box and a numeric dial is disposed on one end of said shaft outside a door of the safe and a disc with a groove is mounted at the other end of said shaft; and a number of numeric plates that each has an opening are arranged between said numeric dial and said disc on said shaft; a mechanical crank with a hook on a lower part thereof and a stop rod on a lateral side thereof hinges to a lower part of said latch on said box; by turning a turning wheel connected to said shaft, said shaft is rotated and said openings of said numeric plates are aligned and then said stop rod of said mechanical crank inserts into said openings of said numeric plates so that said hook of said mechanical crank catches onto said groove of said disc; said latch moves downward through movement of said mechanical crank when said numeric dial is rotated; the electronic lock device includes an electrical crank which hinges to the lower part of said latch on said box coaxial to said mechanical crank; a crook is set on one end of said electrical crank and a cut is mounted on the lateral side of said electrical crank; a torsion spring is set between said mechanical crank and said electrical crank; a shuttle device, which includes a shuttle rod at one end is inside a bushing and a spring in the other end of said shuttle rod, is disposed at the rear of said electrical crank; the front end of said shuttle rod is connected to said cut of said electrical crank and a middle part of said shuttle rod is connected to a first rod; said shuttle rod is moved in accordance with the movement of said first rod controlled by an electromagnetic valve that is controlled by an integrated circuit that connects to a circular pushbutton plate; said circular pushbutton plate is mounted outside said numeric dial on said safe door; an access code is input through said circular pushbutton plate to make said integrated circuit trigger said electromagnetic valve so that said first rod is moved by said electromagnetic valve and said shuttle rod is pulled off said cut of said electrical crank by said first rod; said crook of said electrical crank catches on said groove of said disc so that said latch is moved downwards by rotating said numeric dial; and a second rod is disposed inside said first cabin with a torsion spring thereon connected to the lateral side of said mechanical crank while the other end of said second rod is connected with said shuttle rod; said mechanical crank drives said shuttle rod to move inwards to release said electrical crank whereby said crook of said electrical crank and said hook of said mechanical crank both catches onto said groove of said disc; and said electrical crank of said electrical lock device works with said mechanical crank simultaneously when said mechanical lock device operates.