RU28156U1 - CROSS FOR SUVALDNOGO LOCK - Google Patents

Description

Crossbar for a level lock

The utility model relates to hardware, namely, to the design of the bolt (bolt) of the lock, designed to improve the strength and operational properties of the lock.

As analogues, patented design solutions of locks were selected, namely:

Patent RU No. 2154143, MKI E05B 15/10, publ. 10/08/2000, in which a lock is described with a crossbar having a crossbar with bolts and curly grooves made with teeth for interaction with the code ledges of the key.

The disadvantages of the known solutions include the lack of reliability of the device, due to the possibility of mixing, the plate acting on it through the existing one; carrying teeth with increased force destroying the secret device.

As the closest analogue, a patent of the Russian Federation. No. 2142542, MKI E05B 21/00, publ. 12/10/99. The essence of the known invention consists in the execution of a crossbar for a level lock in the form of a plate with at least one dead-bolt fixed at its end, and at least one tooth is made in the plate in its figured groove for interaction with the key of the level lock.

The prototype of the prototype is not the high reliability of the lock due to the possibility of its unauthorized unlocking by mechanical destruction of the code part of the lock and the movement of the bolt due to the application of forces exceeding the force due to the action of the “native key of the lock when it is opened. Another disadvantage is the structural complexity of the secret part.

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due to the need to introduce additional protective equipment and mechanisms to increase privacy and prevent the unlocking of the code part of the lock.

The task, the solution of which the utility model is aimed at, is to increase the protective properties of the level lock by eliminating the possibility of its unauthorized opening by destroying the secret part.

The technical result consists in reducing the strength properties of the junction of the tooth with the bolt plate so that when you open the lock with a different object than the "native key, for example, with a master key or a fake key, the said tooth breaks. This is due to the fact that when using a fake key or master key, the force of action on the secret part of the lock, in particular on the tooth of the bolt plate, is required to move the bolt with bolts when unlocking and exceeding the force set by the manufacturer for the "native key".

To solve the problem and achieve a technical result in the known crossbar for leveling lock, made in the form of a crossbar with at least one bolt attached to its end, and at least one tooth is made on the crossbar to interact with with the key of the lever lock when moving the bolt plate, on the bolt plate in the area of the tooth leg and / or directly on it, elements for reducing the strength of the connection of the tooth with the bolt plate are made, with their number and param ry defined by the condition of the tooth from breaking force acts on it in case of unauthorized opening of the lock, greater than the force of the lock key.

- Elements for reducing nullity would be made in the form of holes and / or grooves on the surface of the tooth.

- elements of strength reduction would be made in the form of inserts from a material other than the tooth material.

The above signs characterizing the design of the crossbar for the level lock are essential and interconnected causally with the formation of a set of essential signs sufficient to achieve a technical result, in particular, a decrease in the strength properties of the junction of the tooth with the level plate so that when opening the lock with a skeleton key or a fake key, the aforementioned tooth broke, thereby preventing the possibility of mechanical movement of the bolts of the lock.

The essence of the utility model is illustrated by drawings, where

in FIG. 1 shows a General view of a utility model;

on Fig, 2,3, - embodiments of elements for reducing the strength of the tooth of the crossbar plate.

The utility model is illustrated by a specific implementation example, which, however, is not the only possible one, but clearly demonstrates the possibility of achieving this set of essential features of a given technical result.

According to a useful model, the crossbar of the level lock 1 is made in the form of a crossbar 2 with bolts 3 fixed on its end. The bolts 3 can be made in a cylindrical shape or in the form of a parallelepiped.

The bolt plate 2 is made with teeth 4, designed to interact with the key 5 of the level lock after unlocking its code mechanism and moving the bolt plate 2.

On the bolt plate 2 (Fig.2,3) in the area of the legs of each tooth 5 and / or directly on its surface, elements for reducing the strength of the connection of the tooth 4 with the bolt plate 2 are made. Elements for reducing the strength can be made in the form of holes 6 and / or grooves 7 on the surface of the tooth 5 (FIG. 2,3). It is possible to perform elements of strength reduction in the form of inserts 8 of a different material than the material of the tooth 4 and mounted in it. In particular, the tooth 4 can be made integral, while the inserts 8 are made of a different material than the material of the tooth 4 and are fused into it. In each concrete construction of the level lock, the number of tooth strength reduction elements 4 and their parameters are determined from the condition of tooth breakage from the possible force of action on it in case of unauthorized unlocking of the lock. Elements for reducing strength can be located on one tooth 4 or on several, for example, extreme teeth 4.

The device operates as follows.

When you try to open the level lock with a master key or some other fake key, an increased force naturally arises on the details of the secret part of the lock, including the teeth 4. In accordance with the process of moving the details of the secret part of the level lock when exposed to the code protrusions of the key 5, it is necessary as a result, to ensure the combination of the position of the leveling plates 9 of the secret part of the lock to ensure the movement of the crossbar 2 with the bolts 3. When the pick in the process, the position of the leveling plates is combined ting 9 significantly increase the forces acting on the teeth 4 transom plate 2, however, their design is such (fig.2,3) that any increase in force over efforts due to the action of "native key leads to the destruction of tooth 4 and dalneyschih rotation master key does not provide

moving the crossbar plate 2 and removing the bolts 3 from the "closed to" open position.

The use of the utility model provides an increase in the protective properties of the level lock by eliminating the possibility of its unauthorized opening by reducing the strength properties of the junction of the tooth with the level plate so that when the lock is opened with a different object, master key or a fake key, the tooth breaks.

The utility model meets the patentability condition “industrial applicability, since its implementation is possible using existing means of production using well-known technological operations.

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Claims (3)

1. A crossbar for a level lock made in the form of a crossbar with at least one dead-bolt attached to its end face, wherein at least one tooth is made on the crossbar for interacting with a level lock key for moving the crossbar, characterized in that on the bolt plate in the area of the tooth leg and / or directly on it there are elements for reducing the strength of the tooth to the bolt connection, while their number and parameters are determined from the condition of tooth breakage from the force exerted on it unauthorized unlocking greater than the force of the lock key.  2. The crossbar according to claim 1, characterized in that the elements of strength reduction are made in the form of holes and / or grooves on the tooth surface. 3. The crossbar according to claim 1, characterized in that the elements of strength reduction are made in the form of inserts from a material other than the tooth material.