RU2135719C1 - Method for preventing unauthorized release of coding unit in lock-type device - Google Patents

Abstract

FIELD: locking devices. SUBSTANCE: according to method, carried out is preventive blocking of movement of coding detents or intermediate members before occurrence of moment when they come in direct contact with span-piece. Application of aforesaid method eliminates possibility of creating signals generated at interaction of coding unit components. EFFECT: higher efficiency. 3 dwg

Description

 The invention relates to locking devices and is intended to eliminate the possibility of unauthorized unlocking of code devices.

 Lock type code devices, as a rule, in their design have two main elements interacting with each other: an encoded element called a crossbar, and an encoding element - a latch.

 Known code node according to US Pat. RU 2093653, cl. E 05 B 35/04, 1997, containing code locks interacting with a crossbar.

 However, the known device can be unauthorizedly unblocked by determining the jobs of the latches by alternately probing the possibility of movement of the code latches when they come in contact with the crossbar within the backlash formed during their manufacture.

 Known code node lock device according to US Pat. RU 2093655, cl. E 05 B 37/16, 1997, containing code locks, a bolt and elements interacting with them.

 A disadvantage of the known node is the design complexity, which does not eliminate the possibility of unauthorized unlocking of the node.

 Given the fact that the possibility of using the method of probing and listening to determine the unlocking sites of the code node arises only when the bolt and the code clips are relative to each other, the present invention is aimed at eliminating the possibility of signals arising from the interaction of the elements of the code node.

 The method for preventing unauthorized unlocking of the code assembly of a castle-type device containing code latches interacting with a bolt or elements intermediate between the latches and the bolt, according to the invention, consists in preventively blocking the movement of code latches or intermediate elements in contact with the code latches and the bolt capable of generating signals, used for unauthorized unblocking, before the moment of their direct contact with ri gel.

 The technical result of the invention is to eliminate the possibility of signals arising from the interaction of elements of the code node.

 Specific design solutions for the application of the claimed method may be different depending on the design of the code node and are the result of engineering developments using mechanical, electronic and other means.

 In FIG. 1, 2, 3 shows some schematic diagrams of design decisions for the implementation of the claimed method. All circuits reflect devices in a locked state.

 In FIG. 1 shows a design diagram comprising a housing 1, a crossbar 2, having stops 3 and a bar 4, code clips 5, a plate 6 having recesses 7 with inclined walls 8, brake pads 9 interacting with the springs 10, and rollers 11.

 Unlocking the device is as follows. The plate 6 (its control is not shown) is moved in the direction "A", while the rollers 11 are recessed by the inclined walls of the plate, while moving the brake pads 9 towards the latches 5, blocking their movement. At the time of this blocking, the bar 8 is in contact with the bar 4 of the crossbar and moves the crossbar 2, while the stops 3 of the crossbar pass through the work places of the clamps 5, the rollers 11 go into the recesses 7 of the plate 6, and the brake pads 9 under the action of the springs 10 move away from the clamps 5, unlocking them. When closing the lock, the design works in reverse order.

 In FIG. 2 shows a structure comprising a housing 1, a crossbar 2, having stops 3 and a bar 4, code clips 5, brake pads 6, springs 7, contact button 8, solenoid 9.

 Unlocking the device is carried out as follows: the crossbar 2 (its control is not shown) is moved in the direction "A", and in the position in which the stops 3 have not yet touched the latches 5, with their strap 4, the crossbar comes into contact with button 8, closing the electric circuit of the solenoid 9, which, overcoming the efforts of the springs 7, presses the brake pads 6 to the latches 5, blocking their movement. After passing the strap 4 to the end of contact with the button 8, the brake pads 6 are returned to their original position. The process of closing the lock is carried out in the reverse order.

 In FIG. 3 shows a design diagram comprising a crossbar 1 with stops 2 and a strap 3, a lever 4, latches 5, 6, an axle 7, a brake shoe 8 and a spring 9.

 The unlocking work is carried out in the following order: the crossbar 1, moving (its control is not shown) in the direction “A”, pressing the lever 3 on the lever 4, turns it on the axis 7 in the direction “B” with the end “B” of the lever 4, moves brake pad 8 and, overcoming the efforts of the spring 9, presses the pad against the latches 5 and 6, blocking their movement, while the stops 2 of the crossbar 1 with the latches 5, 6 do not contact. Further, after the lath 3 passes through the straight section “P” of the lever 4, the latter returns to its original position, and the latches 5 and 6 are unlocked. The process of closing the lock is carried out in the reverse order.

Claims (1)

 A method for preventing unauthorized unlocking of the code assembly of a castle-type device containing code latches interacting with a bolt or elements intermediate between the latches and the bolt, characterized in that they preventively block the movement of code latches or intermediate elements in contact with the code latches and the bolt capable of generating signals, used for unauthorized unlocking, before the moment of their direct contact with the crossbar.

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