SU1239248A1 - Coded locking device of mechanical type - Google Patents

Description

The invention relates to a technique of locking devices, and more specifically to door locks for office or household appliances.

The purpose of the invention is to increase secrecy by providing automatic code change and simplifying the design.

FIG. 1 shows the proposed device, the cut; in fig. 2 is a view A of FIG. one.

The device includes a housing 1 with a partition 2 and a rear wall 3 in which the bolt 4 is installed, its interchange mechanism, consisting of a push key 5, in which the cut-out blind holes of which the spring-loaded spring 6 6 has an central axis 7 fixed to it fixedly with using a pin 8 retainer 9 with a serrated cut and mounted with the possibility of axial movement and spring-loaded spring 10 with a stopper 11 with a serrated cut, as well as axes 13 spring-loaded with springs 12 (according to the number of code disks), each having two Each of the flats 14 and two circular hemispherical grooves 5 under the balls 16 and 17, located in the corresponding apertures made in the walls of the slingshot sleeves 18, are mounted on shorts 13 with a pivot and axial displacement. On the slots of the sleeves 18, the code discs 19 are installed with the possibility of their discrete treading along with the sleeve, and only in one direction, which is ensured by the interaction of the end of each code disc, on which there are holes with the corresponding leaf spring 20 of the dish-shaped type, fixedly fixed to the burst, ke 2. At the periphery of the code discs 19, serrated teeth are made interacting with the threading of the stopper 11, and code symbols (numbers) are printed on the end. The number of code symbols, protrusions and holes is the same. In addition, the code disks each contain one finger 21, which interacts with an emphasis made on the adjacent end of the corresponding locking disk 22, which limits the angle of rotation of the disk under the action of the elastic element 23, which is fixed at one end to the code disk 19 and in the locking disk 22, which contains a tooth1 on the periphery (atU10 cutting, interacting with cutting of retainer 9. Discs 22 devices, on separators 24, which, in turn, are installed on the corresponding BTV.:IKKX 18 with the possibility of rotation along with their disc 22 relative to the sleeve 18 and with the possibility of axial remen.e: .and, both relative to the sleeve 18, and relative to the disk 22, which is engaged with the separator 24 by means of the disk 22, connected with the separator 24 by means of a sliding tongue, made in this case, as one whole with the separator 24. Senaratog s

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on the inner cylindrical surface they have one notch 25 and one notch 26 under the ball 16. There are spacers 28 between the end of each separator 24 and the flange 27 of the sleeves 18.; axes 13, and in the crossbar 4 - figured through grooves g: o P1tyry 13 with tsekovka under the sleeves 18 and through the 1az under the axis 7. On the crossbar 4 also

wedge-shaped protrusions 29 are made one at a time; 1 each of the lateral sides of all the shaped grooves, each pair of which cooperates with a corresponding chamfer of the separator 24. The casing 1 has slots for the code elements.

The code device operates as follows.

In the closed state, when bolt 4 is extended by a certain amount from housing 1, bolt 4 is locked by cylindrical

0 portions of the cutters 13 located in the respective shaped grooves. Turning in random order the code discs 19 in the allowed compression, and with them the sleeves 18 with balls 16 and 17 relative to ceiiapaTOpoB 24, thereby twisting the springs 23, since the latter are fixed with their second end in the fixation disk 9 discs 22 ki 16 opposite the corresponding grooves 26 of separators 24, which corresponds to a correct abrasive code. After that, pressing the claving / 5 until the stop moves in the axial direction of the axis 13 and the axis 7 with the latch 9 and the stopper 11 mounted on it. The latter engages with the code disks to prevent them from moving, the latch 9 disengages With discs 22, P1aRs 16 and 17 are squeezed out of the grooves 15 without any help, and the flats 14 are mounted coaxially with the bolt 4, allowing further movement within the figures of the slot grooves under the action of a pre-tensioned drive spring, or force the person opening the lock. The bolt 4, when moving in the direction of opening and with its wedge-shaped protrusions 29, acts on the separators 24, turning them in the axial direction relative to the sleeves 18 to align the notches 25 with the wigs 16, overcoming the force of the spring 28, | 1After which the unrestrained discs 22 with separators 24 under the twist-in-turn TBI-iew when dialing the code of the spring, n :( 23 are pairwise rotated until the interaction by the stop 21 is the angle, the magnitude of the square for each pair is equal to the angle rotation of the corresponding code disk when typing the code, and this with its automatic change. The value of the angles,

5 pa which you need to rotate the code disk to align the balls 16 seconds. grooves 26, which determines the code cMCHiji code, can be changed

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By replacing the code discs on the slots of the corresponding sleeves 18, it is possible to provide by means of known methods to reorient the code elements without disassembling the lock.

When the bolt 4 moves in the direction of closing, its wedge-shaped protrusions 29 release the separators 24, which after returning the axes 13, the retainer 9, the stopper 11, the axis 7 and the keys 5 to the initial state, pressing the balls 16 into the grooves 15 that are compatible with them under the action of the spring 28 are also returned to their original condition. The device is prepared for the next code set and unlocked. However, the next attempt to unlock the device with a similarly typed code combination makes it impossible to unlock the code device, since opposite to the balls 16 due to the rotation of the disks 22 there is a body of separators 24, and when the axes 13 are moved by pressing the button 5, the balls 16 are squeezed out of their grooves 15, which leads to displacement, along with the axle 13, of the bushings 18, which, compressing the spring 28, are included in the crossbar guides 4, hindering its mixing despite the fact that the displaced axes 13, as in the case of the correct dialing of the code, do not hold bolt 4. During the joint movement of the axles 13 with the sleeves 18, the balls 17 are locked in their grooves 15

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the slotted surface of the code elements, the stopper 11 engages with the code disks, the clamp 9 leaves the engagement with the locking disks 22, and the balls 16 are aligned with the recesses 25, after which the disks 22 together with the separators 24 are able to turn through a certain angle, and if pressed Key 5 is preceded by a set of some code value, rotated by a certain angle, which ensures automatic code change when you try to unlock the device.

After releasing the key 5, all the displaced elements of the device return to their original position.

For the subsequent unlocking of the lock, it is necessary to establish a new code, the value of which is equal to the value of the previous one, increased by a certain value, known only to persons with access to the object (or apartment). The summation is given bitwise without taking into account the transfer of units to the most significant digit of the code number. For example, the lock is open (or an attempt is made to open) with the code value of 3679, the programmed increase is 1258. The new code is 3679+ 1258 4827, i.e., the code element that is the highest in the discharge position is moved one position and the next ones are 2.5 and 8 respectively. positions, so in principle it is possible and not to perform calculations. This allows the device to be used in the dark, by touch.

Claims (1)

MECHANICAL TYPE CODE LOCKING DEVICE, comprising a housing, a code assembly located therein, including code disks mounted on parallel axes, coaxially mounted thereto and associated with them spring-loaded elastic elements, locking disks provided with stops, a deadbolt, a deadbolt moving mechanism including a control body, located on a central axis parallel to the axes of the disks, a locking means including a lock of the code disks and a lock of the locking disks, characterized in that, in order to increase security by to ensure automatic code change and simplify the design, the code disks are connected to the locking disks by means of the fingers fixed on them, which serve to contact the locking disks of the stops, and the stop elements, some ends of which are fixed to the locking disks, and the other to the code disks, and the code disk stop and the lock of the locking discs are fixed on the central axis and provided with gear cutting, while the locking and code discs have gear cutting on the outer surface for engagement with the cutting of the lock and stop, respectively, and the central axis and axis of the discs are spring-loaded. 1239248 A1 Fig. / 1239243