RU2709565C1 - Relocation lock - Google Patents

Abstract

FIELD: locks.

SUBSTANCE: invention relates to devices of relocation locks with reversible disks located on one axis and installed simultaneously with rotary but not movable handle. Relocation lock comprises a housing with a hollow axis on which rotary disks are arranged, with a groove on the end face, and on the side surface there are projections interacting with each other and with a drive cam fixed on the drive shaft, which is arranged in a hollow axis, wherein the opposite shaft end comprises a limb handle, and the drive cam comprises on the end surface of the recess and is configured to interact with a spring-loaded hook-shaped lever, which is equipped with a shank, interacting with the ends of the rotary discs, wherein the opposite end of the lever is pivotally mounted on the crossbar, besides, a spring is attached to the housing, the second end of which is fixed on the post installed on the drive cam.

EFFECT: advantage of the invention consists in the fact that reliability is increased from unauthorized opening of the lock by manipulation.

1 cl, 5 dwg

Description

The described invention relates to devices locks with reversible disks located on the same axis and installed simultaneously with a rotary, but not movable handle.

A similar permutation lock is known, comprising a housing with a hollow axis, on which rotary disks are located, with a groove on the end surface of each and protrusions interacting with each other and with a drive cam fixed to the drive shaft, which is located in the hollow axis moreover, the opposite end of the shaft contains a limb handle, and the drive cam contains a depression on the end surface and is made interacting with a spring-loaded hook-shaped lever, the opposite the end of which is secured, with the possibility of rotation, on the crossbar, and the hook-shaped lever is provided with a shank interacting with the end surfaces of the rotary disks (see USA patent No. 3, 373, 583, IPC EV 05/37 published March 19, 1968).

The disadvantage of the analogue is that such a lock opens quite quickly (the opening record is 5 minutes 19 seconds) by manipulations carried out by an attacker using the feeling of increased load when manipulating the drive cam when the nose of the hook-shaped lever is located in its depression (see https: // .yotub.com / watch? v = qw_4HQMS-pk). Swivel discs vary slightly in outer diameter. When the groove of the disk with the largest diameter is under the shank, and the cavity of the drive cam is under the nose of the hook, the entire lever drops slightly lower (now it rests on the disk of a smaller diameter. When lifting the nose of the lever with the edges of the cavity of the drive cam, the force that the attackers learned to determine with your fingertips.

A similar permutation lock is known, comprising a housing with a hollow axis, on which rotary disks are located, with a groove on the end surface of each and protrusions interacting with each other and with a drive cam fixed to the drive shaft, which is located in the hollow axis moreover, the opposite end of the shaft contains a limb handle, and the drive cam contains a depression on the end surface and is made interacting with a spring-loaded hook-shaped lever, the opposite the end of which is fixed, with the possibility of rotation on the bolt, and the hook-shaped lever is equipped with a shank interacting with the end surfaces of the rotary disks. The lock is supplemented by a figured lever, on the long end of which the second end of the hook spring of the hook-shaped lever is fixed, and a pin interacting with the figured lever is placed on the lateral surface of the drive cam (see USA patent No. 4, 756, 176, IPC ЕВВ 37/08, published July 12 1988).

The disadvantage of a similar permutation lock is that it is not fully protected from the successful manipulation by highly qualified intruders.

The closest device of the same purpose to the claimed invention in terms of features is a permutation lock containing a housing with a hollow axis, on which rotary disks are located, moreover, there is a groove on the end surface of each and protrusions interacting with each other and with the drive a cam mounted on the drive shaft, which is placed in the hollow axis, the opposite end of the shaft containing a limb handle, and the drive cam contains on the end surface of the troughs y and is made interacting with a spring-loaded hook-shaped lever, the opposite end of which is secured, with the possibility of rotation, on the crossbar, and the hook-shaped lever is equipped with a shank interacting with the end surfaces of the rotary disks. The lock is supplemented with three permanent magnets, one of which is located in the nose of the hook-shaped lever, and the other two along the edges of the cavity located on the end surface of the drive cam (see USA patent No. 5,473,919, IPC EV 05/37, published December 12, 1995). Selected as a prototype.

The disadvantage of the prototype is that such a mechanism is quite complicated to manufacture and poorly adapted to facilitate assembly methods in the mass production of combination locks. This disadvantage is specifically indicated in USA patent No. 5,749,252, IPC EV 05/37, published May 12, 1988.

The technical task is to create additional difficulties for the attacker to manipulate.

EFFECT: additional inconvenience to an attacker and, as a result, increased reliability from unauthorized opening of the castle by manipulation.

The specified technical result is achieved by the fact that the permutation lock containing the housing with a hollow axis, on which the rotary disks are placed, with a groove at the end, and on the side surface there are protrusions interacting with each other and with the drive cam mounted on the drive shaft, which is placed in the hollow axis, and the opposite end of the shaft contains a limb handle, and the drive cam contains a depression on the end surface and is made interacting with a spring-loaded hook-shaped lever, which is equipped with a tail the ovik interacting with the ends of the rotary disks, the opposite end of the lever being pivotally mounted on the bolt, the peculiarity is that a spring is attached to the housing, the second end of which is fixed to the stand mounted on the drive cam.

Additionally, the permutation lock is characterized in that the rack is provided with an annular groove.

The invention is illustrated by drawings.

FIG. 1 - permutation lock in the context.

FIG. 2 is a plan view. The lock is in the closed position. The cover is removed.

FIG. 3 - the situation when all three grooves of the end surfaces of the rotary disks are located under the shank and the nose of the hook-shaped lever sank into the cavity of the drive cam.

FIG. 4 is a plan view. The lock is in the open position. The cover is removed.

FIG. 5 - hook-shaped lever.

The drawings show: safe door 1, a relocation lock, consisting of a housing 2 with a hollow axis 3 and a cover 4, a spring 5, which presses the rotary disks 6, 7, 8 against each other with a force of 15 ounces; gear 9, designed to adjust the compression of the rotary disks 6, 7, 8. On the side surface of the rotary disks there are protrusions 10 interacting with each other and a drive cam 11, on the side surface of which there is a protrusion 12. The drive cam 11 is mounted on the drive shaft 13 with thread and T-key 14 located in the keyways of the shaft and the drive cam. The opposite end of the drive shaft 13 is provided with a limb handle 15. The drive cam 11 has a recess 16. The nose 17 of the spring-loaded hook-shaped lever 18, which is mounted on the crossbar 19 with a rotary screw, interacts with the end surface of the drive cam 11. The spring 21 is located on the screw 20. The bolt 19 is equipped with a blind recess 22 and a ball lock 23. Inside the housing 2 there is a safety lever 24 with a spring 25, the left shoulder of which interacts with the cover 4, and the right shoulder hangs over the blind recess 22. If the cover is removed, then the bolt is locked by the lever 24. The rotary disks 6, 7 and 8 are provided with grooves 26 at the end. The rotary discs 6, 7 and 8 are equipped with a code change mechanism, which has a key hole 27. The lower part 28 of the screw 20 is located in the groove 29, the size of which limits the movement of the bolt 19. The cavity 16 of the drive cam 11 has an edge 30 for moving the hook-shaped lever 18 to open the lock. And the edge 31 for closing the lock and lifting the spring-loaded hook-shaped lever 18. The drive cam 11 is equipped with a stand 32 with an annular groove 33. The same stand 34 is placed on the housing. The stands 32 and 34 are spring-tightened 35. The hook-shaped lever 18 has a shank 36 that interacts with the ends rotary discs 6, 7, 8.

Device operation

Castle opening

The rotary discs 6, 7, 8 are in an arbitrary position. Suppose the combination of a lock is 50-20-30. We start to rotate the dial 15 counterclockwise. Since the spring 35 is hooked on the struts 32 and 34, when rotating in the first half-turn, it will resist the rotation of the limb handle 15, and in the second half-turn the spring will help to rotate the limb handle. Moreover, when the spring 35 is stretched, the load will increase, and then fall. Manipulate with your fingertips the drive limb handle 15 will not work, since the spring is quite elastic. Against the background of this spring elasticity, determining whether the load has decreased or increased when the nose 17 is in contact, the lever 18 with the edge 30 of the cavity 16, the drive cam 11 becomes problematic. Do not hold the limb handle 15 with the tips of the fingertips. The limb handle 15 has to be held tightly, and to rotate for several revolutions, the second hand has to be attracted, since the limb handle tends to break out, either one way or the other. Of course, this creates some inconvenience to the owner of the safe when typing the code.

The drive cam 11 starts to rotate and its protrusion 12 rests on the protrusion 10 of the rotary disk 8. In turn, on the next turn, the rotary disk 8 picks up the rotary disk 7, which at the next turn will rotate the rotary disk 6. Accordingly, the number 50 is carried out three times past the center mark (not shown). For the fourth time, we precisely fix this figure opposite the mark. In this case, the groove 26 of the rotary disk 6 is installed exactly under the shank 36. With each revolution of the drive cam 11, when the cavity 16 is located under the nose 17, the lever 18 will lower to the ends of the rotary disks 6, 7 or 8, since the grooves 26 of the rotary disks not located strictly under the shank 36.

The second digit is set by rotating the dial 15 of the dial already clockwise. Draw the number 20 past the central mark 2 times. For the third time, we precisely fix the number opposite the mark. In this case, the groove 26 of the rotary disk 7 is installed exactly under the shank 36.

The third digit is set by rotating the dial 15 counterclockwise. Draw the number 30 past the center mark once. The second time we precisely set the number opposite the mark. In this case, the groove 26 of the rotary disk 8 is precisely installed under the shank 36.

Slowly turn the dial 15 of the dial clockwise. In this case, the nose 17 of the hook-shaped lever 18 falls into the cavity 16 of the drive cam 11 (see figure 3), since the shank 36 has lowered into the grooves 26 of the rotary disks 6, 7, 8 installed in one line. With further rotation, the lever 18 will begin to move and pull the bolt 19 along with itself. As soon as the shank 28 of the screw 20 abuts against the left edge of the groove 29, the rotation will stop. The lock is open (see figure 4).

Lock closing

To close the lock, we begin to turn the dial 15 counterclockwise. The drive cam begins to shift the lever 18 to the right. The crossbar 19 is shifted to the right. The nose 17 of the lever 18 is pushed out of the cavity 16. The protrusion 12 of the drive cam 11 starts to rotate the rotary disk 8 by the protrusion 9. Now we need to knock down the set code of the rotary disks 6, 7 and 8. In total, 4 turns are made counterclockwise. The lock is closed.

Thus, the above information indicates the fulfillment of the following set of conditions when using the claimed invention:

- a tool embodying the claimed invention in its implementation, relates to devices lock locks with reversible disks located on the same axis and installed simultaneously with a rotary, but not movable handle;

- a tool embodying the claimed invention in its implementation, is able to ensure the achievement of the perceived by the applicant technical result;

- the advantage of the invention is that it increases the reliability of unauthorized opening of the lock by manipulation;

- the claimed invention meets the condition of "industrial applicability".

Claims (2)

1. Permanent lock containing a housing with a hollow axis, on which the rotary discs are placed, with a groove at the end, and on the side surface there are protrusions interacting with each other and with a drive cam fixed to the drive shaft, which is placed in the hollow axis, the opposite end of the shaft contains a limb handle, and the drive cam contains a depression on the end surface and is made interacting with a spring-loaded hook-shaped lever, which is equipped with a shank interacting with the ends of the rotary disk s, and the opposite end of the lever is pivotally mounted on the crossbar, characterized in that a spring is attached to the housing, the second end of which is fixed on a stand mounted on the drive cam. 2. The device according to p. 1, characterized in that the rack is equipped with an annular groove.

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