RU2299817C1 - Twin-wheel antislip device - Google Patents

Abstract

FIELD: automotive industry.

SUBSTANCE: invention relates to devices preventing slipping of driving twin wheels. Proposed device contains traction member with antislip elements on its outer surface made for slacklessly fitting in clearance between side strips of twin wheel pointed to each other and resting on side strips. Antislip elements project from clearance outside outer diameter of pneumatic tires of twin wheel under load, and form of cross section of traction member corresponds to form of clearance between side strips in place of fitting in. Traction member is made in form of ring for fitting into clearance coaxially to tires. Device provides simplification of design and excludes increased wear of tires as load on tires becomes more uniform, and improved safety on the road owing to prevention of sticking of foreign objects in clearance between tires.

EFFECT: simplified design, reduced wear of tires, improved safety.

9 cl, 3 dwg

Description

The invention relates to devices that prevent wheel slippage, and in particular to anti-skid devices of driving double wheels, for example, double wheels of trucks.

From the prior art, various anti-skid devices are known which are mounted in the lumen between adjacent pneumatic tires of a double wheel. A number of such devices include traction plates, each of which rests at its ends on the treads of adjacent tires of a double wheel, arranged around the circumference of the wheels with a certain pitch and pulled together by pulling elements placed in the space between the tires, which can both be fixed on the rim [patent FR 611668 publ. 10/08/1926], for example with execution in the form of a caterpillar [patent US 3750734, publ. 08/07/1973], and placed in the lumen without such a fastening [patent US 3581797 publ. 06/01/1971], for example, with the implementation of spikes on the traction elements [application JP 1208210, publ. 08/22/1989].

In other known devices, all structural elements of the device are mounted in the gap between adjacent tires [application JP 8-142619, publ. 06/04/1996]. As a prototype of the present invention, one of such devices is selected, containing traction elements clamped in the lumen with a certain step by means of a roller chain, on the outer surfaces of which anti-skid elements are made in the form of spikes [application JP 2003-267013, publ. 09/25/2003]. The cross-sectional shape of the traction elements corresponds to the shape of the gap between the sidewalls of the tires of the double wheel. The design ensures that the anti-skid elements protrude beyond the treads of adjacent tires under load.

All of the above devices have a number of disadvantages, in particular:

- structural complexity, which determines a relatively high cost and low reliability;

- increased tire wear, for example, detachment of the cord, due to uneven loading and cyclic bending of the broker (fabric and / or cord), due to the discrete arrangement of traction elements;

- increased wear of the suspension elements of the double wheel due to the inability to ensure its accurate balancing assembly with the anti-skid device;

- increasing the likelihood of stuck in the lumen between the tires of foreign objects, which reduces road safety.

The main technical task to be solved is the simplification of the design and, as a result, the reduction in the cost of a dual-wheel anti-skid device. Also, the present invention solves other technical problems: reducing the wear of pneumatic tires of a double wheel when using the device; increase traffic safety.

A dual wheel anti-skid device is proposed, comprising a traction element with anti-skid elements on its outer surface, configured to be embedded without a gap in the lumen between the sidewalls of the tires of the double wheel facing each other and resting on the sidewalls, while the anti-skid elements protrude from the lumen beyond the outer diameter of the pneumatic tires of the double wheel under load, and the cross-sectional shape of the traction element corresponds to the shape of the gap between the sidewalls in place i. What is new is that the traction element is made in the form of a ring configured to be inserted into the lumen of the coaxial tire by clamping in the lumen between the sidewalls of the tires facing each other with a force that transfers torque from the tires to the traction wheel. T.O. the design of the anti-skid device is simplified, the load on the tires becomes more uniform, which eliminates their increased wear, and also eliminates the possibility of foreign bodies getting stuck in the lumen between the tires due to the fact that the entire lumen is completely occupied by a continuous ring.

Anti-skid elements are best done in the form of spikes, for example, standard spikes for car tires, although the possibility of another design, for example, in the form of brackets, chain links, etc., is not excluded. The role of anti-skid elements can also be performed by a “winter” tread made on the outer surface of the ring.

The ring is best made of an elastic material, for example rubber, in particular similar to rubber tires.

In this case, the ring is better to be reinforced to increase its strength characteristics and prevent its displacement in the gap under the influence of centrifugal force, foreign bodies on the road, etc. Reinforcement, as for automobile tires, can be carried out with fabric, cord and / or elastic and / or rigid ring of wire.

The device may further comprise a rigid inner sleeve, made with the possibility of installation and support on facing each other the flanges of the rims of the discs of the double wheels, while the sleeve is inserted into the inner hole of the ring. This design virtually eliminates the displacement of the ring during operation.

The invention is illustrated by drawings. Figure 1 shows the appearance of the traction ring, figure 2 - on a fragment of a cross section of a double wheel explains its installation. Figure 3 presents a fragment of a section of another modification of the traction ring mounted on a double wheel position.

The invention is illustrated by examples of two anti-skid devices.

Example 1. Device for a truck with a net weight of up to 3.5 tons.

The ring 1 of the anti-skid device is made of vulcanized rubber and is equipped with metal spikes 2, built-in and protruding along its outer surface 3 with a tread pattern applied on it (see figure 1). Ring 1 is reinforced along the cross section by a broker 4 of several layers of nylon fabric laid parallel to surface 3, a radial or diagonal metal cord frame 5 laid parallel to surface 3 and side surfaces of ring 1, as well as a ring of steel wire 6 (see figure 2) . Ring 1 is mounted between adjacent sidewalls of tires 7 and 8, first the outer wheel is removed from the hub (tire 7 with disk 9), ring 1 is coaxially mounted to tire 7 and clamped in the gap between the sidewalls of tires 7 and 8 by replacing the outer wheel . It is better when the studs protrude slightly beyond the outer diameter of the tread of tires 7 and 8 in areas outside the contact of the tires with the road. When operating a double wheel in the area where the tire treads 4 and 5 come in contact with the road, the tires sag, it is better until the surface 3 comes in contact with the road, and this drawdown provides a greater clamping force of the ring 1 between the sidewalls of the tires 7 and 8, which ensures reliable transmission of torque to the ring 1 and spikes 3, providing reliable adhesion of the latter to the road surface, and also prevents the displacement of the ring 1 into the lumen.

Example 2. A device for a truck with a net weight of over 3.5 tons (see figure 3).

The device is designed and operated as described in example 1, except that the ring 1 is fitted with an interference fit on the inner plastic sleeve 10 mounted on the flanges 11.

The above examples are used only to illustrate the possibility of carrying out the invention. They do not limit the scope of legal protection presented in the claims, while a person skilled in the art is relatively simple to implement other ways of carrying out the invention.

Claims (9)

1. The anti-skid device of a double wheel containing a traction element with anti-skid elements on its outer surface, made with the possibility of embedding without a gap in the lumen between the sidewalls of the tires of the double wheel facing each other and resting on the sidewalls, while the anti-skid elements protrude from the lumen beyond the outer diameter pneumatic tires of a double wheel under load, and the cross-sectional shape of the traction element corresponds to the shape of the gap between the sidewalls at the point of incorporation, distinguishing Esja in that the traction element is a ring adapted to be embedded into the lumen coaxially rails by clamping in the lumen between the facing sidewalls of the tire with a force providing a torque transmission from the tires to said traction element. 2. The device according to claim 1, characterized in that the anti-skid elements are made in the form of spikes. 3. The device according to claim 1, characterized in that the traction element is made of elastic material. 4. The device according to claim 3, characterized in that the traction element is made of rubber. 5. The device according to claim 3, characterized in that the traction element is made reinforced. 6. The device according to claim 5, characterized in that the traction element is reinforced with fabric. 7. The device according to claim 5, characterized in that the traction element is reinforced with cord. 8. The device according to claim 5, characterized in that the traction element is reinforced with a coaxial elastic and / or rigid ring of wire. 9. The device according to claim 3, characterized in that it further comprises a rigid inner sleeve made with the possibility of installation and support on the flanges of the rims of the wheels of the double wheel facing each other, while the sleeve is inserted into the inner hole of the traction element.

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