RU2461475C2 - Antitheft device for locking vehicle rotary shaft - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to security systems and may be used for locking automotive steering controls. Proposed device is made up of metal case with iner chamber. Said chamber is shaped to wedge-like surface to receive locking element composed of metal roller or ball. Said surface and said locking element are coupled with their drive to provided for friction interaction so that shaft is locked in turning it by unauthorised user.

EFFECT: antitheft device.

3 cl, 2 dwg

Description

The invention relates to security equipment and can be used to lock or lock the controls, in particular steering, various vehicles.

Known anti-theft device for locking the rotary shaft of the vehicle, in particular the steering shaft with the help of a device fixedly mounted on the steering column, the pin of which enters the groove made on the steering shaft (JP No. 5705255 A, B60R 25/02).

The disadvantage of this device is that the installation of an anti-theft device requires a weakening of the cross section of the steering shaft, due to the groove in it for the pin of the anti-theft device, as well as the possibility of hijacking a vehicle without destroying the anti-theft device, by partially disassembling the steering.

Known anti-theft device for blocking the rotary shaft of a vehicle, in particular the steering shaft, comprising a bracket combined with a steering column with a lock fixed therein, an annular coupling fixed to the steering shaft with a smoothly enveloping outer surface and a slot for accommodating a sliding lock rod (analog - SU No. 1342786, B60R 25/02).

The disadvantage of this device is that the installation of the lock takes place directly on the steering shaft and it is also possible to hijack a vehicle without destroying the anti-theft device itself, also by partially disassembling the steering.

There is also known a lock containing a housing made of two parts detachably connected by screws, the heads of which are located in one of the housing parts and are insured against unscrewing (closed) by a removable bolt, which is located in the installation groove of a T-shape made in this part of the housing, in which, from the side facing the removable deadbolt, there is a blind hole for the latch located in the deadbolt and having the opportunity to exit into this blind hole of the housing. The lock is mounted on the steering shaft of a car (RU 4133 U1, E05B 55/00).

The disadvantage of installing the lock directly on the steering shaft is the existing possibility of hijacking a vehicle without destroying the anti-theft device itself, by partially disassembling the steering. For example, in vehicles equipped with an intermediate shaft, it is possible to remove and replace the intermediate shaft with the steering column by removing the screws and nuts securing the steering shaft to the steering bracket and loosening the tightening screws of the two clamp couplings and the lower flange of the coupling connecting the main shaft to the intermediate and the intermediate a shaft with a gear wheel (gear) of the steering mechanism. In addition, a two-part housing requires a certain qualification from the installer, or a service installation is required.

The objective of the invention is to increase the reliability of locking any rotary shaft that is present in the nodes of the vehicle and transmitting a control signal from the controls to the actuators, to prevent unauthorized use of the vehicle.

The technical result consists in the fact that in case of unauthorized rotation of the rotary shaft in any direction, the blocking element is automatically jammed, whether it is a ball or roller between the surfaces: wedge-shaped and cylindrical.

The claims are made without division into distinctive and restrictive parts.

The technical result is achieved due to the fact that the anti-theft device for blocking the rotary shaft of the vehicle is made in the form of a metal body enclosing the rotary shaft with at least one cavity having a working curly wedge-shaped surface in which a blocking element in the form of a metal roller or ball is placed while the working curly wedge-shaped surface and / or the blocking element are connected with the mechanism of their movement to ensure frictional interaction of the surface the body, the locking element and the rotary shaft of the vehicle to block the said rotary shaft when turning it by an unauthorized user.

Other embodiments are possible, according to which it is necessary that:

- the device was placed on any node of the vehicle having a rotary shaft transmitting a control signal from the vehicle controls to its actuating elements;

- the movement mechanism was performed with a secret part, excluding unauthorized activation of it.

These features of the invention are essential and interconnected causation with the formation of a combination of essential features sufficient to achieve a technical result.

The invention is illustrated by drawings, where:

figure 1 shows the anti-theft device in the first embodiment;

figure 2 - anti-theft device in the second embodiment;

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

The anti-theft device for blocking the vehicle’s rotary shaft is made in the form of a metal body 1 enclosing the rotary shaft, in which at least one cavity is made having a working curly wedge-shaped surface 2 in which the blocking element 3 is placed in the form of a metal roller or ball. The working curly wedge-shaped surface 2, or the blocking element 3, or simultaneously connected with the mechanism of their forced movement (not shown) to ensure frictional interaction of the wedge-shaped surface 2 of the housing 1, the blocking element 3 and the rotary shaft 4 of the vehicle to block the said rotary shaft 4 when turning its unauthorized user. The forced movement mechanism 5 can be of any type: mechanical, for example, in the form of springs or levers, hydraulic or electric. The anti-theft device can be placed on any node of the vehicle having a rotary shaft 4 that transmits a control signal from the vehicle controls to its actuators, in particular, on the steering shaft of the vehicle, which transmits a control signal from the steering wheel to the steering wheels of the vehicle . The movement mechanism can be performed with a secret part (not shown), excluding unauthorized activation of it.

The device operates as follows.

In one embodiment (Fig. 1), when the anti-theft device is set to the “guard” mode, the driver connects a forced movement mechanism 5 that locks the rotary shaft 4, for example the steering shaft, by moving the locking elements 3 along the wedge-shaped surface 2 of the housing 1 until frictional interaction of the wedge-shaped surface 2 of the housing 1, the locking element 3 and the rotary shaft 4 of the vehicle, i.e. to jam the rotary shaft 4 and exclude the possibility of its rotation in both directions. In other embodiments, the forced movement mechanism 5 can move the housing 1 with the wedge-shaped surfaces 2 relative to the blocking elements 3 (FIG. 2) or simultaneously the housing 1 with the wedge-shaped surfaces 2 and the locking elements 3 towards each other to ensure frictional interaction of the wedge-shaped surface 2 of the housing 1 blocking element 3 and the rotary shaft 4 of the vehicle, i.e. to jam the rotary shaft 4 and exclude the possibility of its rotation in both directions.

The anti-theft device can be made with a secret part located in any inaccessible place of the vehicle (not shown) and which is made in the form of any known element: lock, button, toggle switch, etc., when turned on by the owner of the vehicle, the movement mechanism 5 moves and blocking of the rotary shaft 4 will not occur. When the said item is disabled by the vehicle owner, i.e. when the anti-theft device is set to the “guard” mode and if any person who does not have authorized access to control this vehicle tries to rotate the rotary shaft 4, the movement mechanism 5 is forcibly connected and locks the rotary shaft 4, not allowing to control the vehicle.

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

Claims (3)

1. The anti-theft device for blocking the rotary shaft of the vehicle, made in the form of a metal body with at least one cavity having a working curly wedge-shaped surface, and in which a blocking element is placed in the form of a metal roller or ball, while the working curly wedge-shaped surface the case or the working curly wedge-shaped surface of the case and the blocking element are connected with the mechanism of their movement to ensure friction interaction of the surfaces of the case ruyuschego member and the rotary shaft of the vehicle for blocking said rotating shaft when it is rotated by an unauthorized user. 2. The device according to claim 1, characterized in that it is located on any node of the vehicle having a rotary shaft, transmitting a control signal from the vehicle controls to its actuating elements. 3. The device according to claim 1, characterized in that the movement mechanism is made with a secret part, excluding unauthorized activation of it.

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