RU2175705C1 - Method for prevention of unauthorized unlatching of lock-type code assembly (modifications) - Google Patents

Abstract

FIELD: lock devices. SUBSTANCE: the method for prevention of unauthorized unlatching of lock-type code assembly, having a body, cross-bar, at least one code lock striker designed for control of displacement of the cross-bar due to its engagement with the cross-bar or the members that are intermediate ones between the cross- bar and the code lock strikers, consists in quenching, distortion and simulation of signals arising between the crossbar and code lock strikers, or members that are intermediate ones between the cross-bar and the code lock strikers used for unauthorized unlatching of the code assembly; prevention of arising of signals by alternate interrelated locking of the cross-bar or access to the code lock strikers, or members that are intermediate ones between the code lock strikers and the cross-bar. EFFECT: prevented use of signals for unauthorized unlatching of the lock-type code assembly. 4 cl, 13 dwg

Description

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

 The lock type encoder, as a rule, in its design has two main elements interacting with each other - the encoded element and the encoding element, respectively called crossbar and latch.

 Known code node according to US Pat. RF 2132440, class E 05 B 35/04, 1998, comprising a housing with a cover, in which a groove is made having a shape corresponding to the shape of the bolt inlet head, which is placed in the groove, code clips located in holes having a shape corresponding to the shape of the clips that have working and false recesses, the cross-section of which corresponds to the cross-section of the stops of the lead-in head of the crossbar, and the depth of the false recesses is much less than the height of the corresponding stops of the lead-in head of the crossbar, which interact with the code locks; however, this device can be unauthorizedly unblocked by determining the location of the work places of the latches by using signals that occur when enumerating the positions of the code latches relative to the stops of the bolt and perceived by the organs of hearing or touch.

 There is a method of preventing unauthorized unlocking the code node of the castle-type device according to US Pat. RU 2135719, IPC 7 E 05 B 35/04, 37/20, 1999, which is a way to significantly reduce the possibility of the occurrence of signals arising from the movement of code latches interacting with the crossbar by prohibitively blocking the movement of the latches until they are in direct contact with the crossbar. A disadvantage of the known invention is the possibility of the occurrence of signals used with unauthorized unlocking of the code unit, arising from the contacts of the bolts of the bolt with the fixed code locks when the bolt moves within the gap.

 The present invention is aimed at eliminating the possibility of using signals for unauthorized unlocking of a code type lock assembly.

 The solution to this problem was carried out by the applicant in several variants of the proposed method.

 In the first embodiment of the method for preventing unauthorized unlocking of the code assembly of castle-type devices containing code latches interacting with a bolt or elements intermediate between the code latches and the bolt, by significantly reducing the possibility of signals, according to the invention, the possibility of using signals for unauthorized unlocking of the code node by jamming, distortion, imitation of signals arising from acts bolt with clamps or elements, intermediate between the clamps and bolt.

 Specific design solutions for the application of the claimed first variant of the method may be different, depending on the design of the code unit, and are the result of engineering developments using mechanical, electrical, electronic and other means, as well as known devices, such as ratchets, vibrators, etc. P.

 According to the invention, in the second embodiment of the method for preventing unauthorized unlocking of a lock type code assembly containing code latches interacting with a bolt or elements intermediate between the code latches and the bolt, the possibility of occurrence of signals for unauthorized unlocking of the code node by interconnected locking of the bolt with free access to the code latches or to elements intermediate between code latches and a crossbar, or blocking iem access code elements or retainers, intermediate between the code locks and bolt, the bolt at the unlocked position.

 Figure 1, 2 shows a diagram of a design solution for the implementation of the proposed method, containing in the housing 1 code locks 6, a bolt 2, having annular grooves 5, stops 3, ledges on the stops 4, having a height less than the total height of the stop 3 , and the total width of the stop 3 is greater than the width of the working recess 7 of the latch 6. The crossbar 2 is spring-loaded with leaf springs 13. The design operates as follows.

 When trying to get a signal indicating the location of the working recess 7 of the latch 6 by means of mutual contacts during the movement of the code latch and bolt. The stop 3, going into the working recess 7 to a depth not greater than the depth of the false recess, with its ledge 4 rests against the edge of the adjacent adjacent recess 8, simulating the working recess 7 as an inoperative recess, while the crossbar 2, overcoming the limited efforts of the springs 13, rises above the latch 6 to the height of the programmed play and only when unlocking is allowed, ledge 3 passes through the working recess 7.

 In FIG. 2, in the lower part, is a schematic diagram of a structure that imitates the signals that occur when the latch 6 is advanced along the longitudinal axis and in contact with the stop 3 of the bolt 2, which contains a movable pin 15 placed in the hole in communication with the hole in which the code lock is placed 6, a spring 11 cooperating with a pin 15, closed by a cover 16.

 The design works as follows. The pin 15, installed with limited access to the hole where the latch is located, is constantly in direct contact with the latch 6, and when the stop 3, the bolt 2 coincide with the working recess 7, they will rub against each other during movement, giving signals simulating working recess as a non-working recess.

 When rectangular latches 10 are used in the design of the code assembly (Figs. 3, 4, 5) in order to increase the number of code combinations without increasing the number of code latches and improve convenience when the device owner performs actions to change the lock code, it is advisable to perform false code notches on both sides of the code latches 10. This will allow for the bolt to move in one translational direction to provide for locking or unlocking of the locking device, which will require, in case of unauthorized dismantling okirovanii code unit, twice the number of searched privacy options.

 To complicate the unauthorized unlocking of the code node, “surprises” code latches can be used, which have certain deviations and differences from all code latches of the code node, which make it difficult to detect working notches, as, for example, shown in FIG. 6. Such a code lock has a one-sided working recess, while all other code clips have working recesses in the form of annular grooves. It is possible to perform annular grooves with a displacement of the longitudinal axes of the grooves and clamps; such clamps - "surprises" when they are installed in the working position, are installed in a certain angular position, known only to the owner of the castle.

 To complicate the unauthorized access to the code locks to determine the location of the working recesses through the space between the walls of the holes 19 (FIG. 7) and the lock on the front end of the lock, a protrusion 9 (FIG. 8) having a diameter smaller than the diameter of the code lock and a length , greater than the length of the longitudinal movement of the code lock, which does not allow you to drill and remove the lock, and also have access to it through the hole 19 (Fig. 11), since when you try to drill the protrusion will rotate with the drill.

 To simulate the absence of a working recess, a spring ring 12 can be used (Fig. 9), which, having constant friction against the wall of the hole, creates signals.

 Unauthorized unlocking of the code node using signals arising from the interaction of code latches with the bolt or elements intermediate between the code latches and the bolt can be prevented by blocking the bolt 2 (Fig. 11) with the lock 17 and depriving the bolt 2 of the possibility of having direct contacts with the code latches or elements intermediate between the code clips and the bolt, as a result of which the occurrence of signals is excluded.

 Prevention of unauthorized unlocking of the code node using signals arising from the interaction of code latches with the bolt or elements intermediate between the latches and the bolt can be carried out by alternately interconnected elimination of the possibility of signal occurrence by blocking the movement of the bolt and preventing its contacts with the code latches or elements intermediate between code locks and bolt, on the one hand, and the exception of the possibility of access to code iksatoram or elements between the intermediate code locks and deadbolt and as a consequence, removing the possibility of occurrence of the signals by performing manipulation with code locks and intermediate elements on the other side. In FIG. 11 and 12 are diagrams of the interaction and execution of operations to implement one of the variants of the proposed method in the closed position of the code node. In FIG. 12, the bolt 2 is in an unlocked state, and the lock 17 is in contact only with the shutter, at the same time, the shutter 18 is closed to the through holes 19, intended for placement in them of the code columns 21 of the key 20, and at the same time is closed for access to perform manipulations with code latches and intermediate elements in contact with the crossbar 2, and for the perception of signals.

 The transition from this state of the code node to the state shown in FIG. 11 was carried out in the following sequence. The flap 18, moving in the direction of unlocking the holes 19 (in the diagram to the right side), with the inclined plane 22 moved the blocker 17 onto the plane 23 and inserted it into the annular groove 5 of the crossbar 2, blocking its movement and contacts with the code latches, and thereby blocking the possibility occurrence of signals, at the same time, the shutter has taken a position that provides opportunities for applying a key, for performing manipulations with code latches and for perceiving signals. This example showed that in none of the interconnected positions of the crossbar and the damper there was an opportunity for the emergence and perception of signals.

 Locking and unlocking the code unit in the operating conditions of the locking device can be performed with a key 20, superimposed on the through holes and closed by a shutter.

 In the code nodes that require the removal of the key 20 from the casing 1 of the code node, it is necessary to carry out the second annular groove 5 on the crossbar 2 to place the blocker 17 moved by the shutter 18 in it.

 Depending on the design of the code unit and the locking device, the interaction between the shutter and the bolt can be carried out in various ways and means. For example, locking the bolt with a shutter using the solenoid 25 through the button 24 (Fig. 13).

 The list of positions.

 1. Case.

 2. The crossbar.

 3. The emphasis of the crossbar.

 4. The step of the stop bolt.

 5. An annular groove of the crossbar.

 6. The code lock.

 7. Working recess.

 8. False notch.

 9. The protrusion of the latch.

 10. The lock is code rectangular.

 11. The spring.

 12. The spring ring.

 13. Leaf spring.

 14. The slot.

 15. The pin.

 16. The cover.

 17. The blocker.

 18. Damper.

 19. Through hole.

 20. The key.

 21. Key code column.

 22. Inclined plane.

 23. The plane of the flap.

 24. Button.

 25. Solenoid.

Claims (2)

 1. A method for preventing unauthorized unlocking of a lock type code assembly containing code locks interacting with a bolt or elements intermediate between the code locks and the bolt, by significantly reducing the possibility of signal occurrence, characterized in that they reduce, up to the exception, the possibility of using signals for unauthorized unlocking of the code node by jamming, distortion, imitation of signals.  2. A method for preventing unauthorized unlocking of a lock type code assembly containing code locks interacting with a bolt or elements intermediate between code locks and a bolt, characterized in that they exclude the possibility of signals for unauthorized unlocking of the code node by interlocking interlocking of the bolt by free access to the code latches or elements intermediate between the code latches and the bolt, or blocking access to the code to latches or elements intermediate between code latches and the crossbar, with the unlocked position of the crossbar.

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