The anti-skid element for a tire wheel of the vehicle, a method of manufacturing the anti-skid element for a tire wheel of the vehicle, and a method of manufacturing osipovna tires

 

(57) Abstract:

Usage: the invention relates to the tire industry. The inventive anti-skid element for a vehicle tyre contains made of solid material or alloy spike, mounted in a preformed sleeve of thermoplastic synthetic rubber. The sleeve is placed and fixed in the appropriate slot checkers lug tread part of the tire wheel of the vehicle. The sleeve is made of ebony devulcanizing rubber, and the thorn of a rigid material covered with copper-containing material, and the thorn in the sleeve and the sleeve in the tread part of the collected raw tire fixed by vulcanization. Also considered a method of manufacturing the anti-skid element and method of manufacturing Osipovna tires. 3 S. and 2 C.p. f-crystals, 9 Il.

The invention relates to the tire industry and for the design of tools, snow vehicles, in particular of anti-skid elements, which are equipped with the tyre tread to improve their adhesion to the supporting surface, characterized by a low coefficient of adhesion.

Known design protector pineal protector small size from 1 to 9 mm in diameter particles of high hardness of up to 7M, constituting from 5% to 50% of the total mass of the protector, evenly distributed through the volume of the tread and partially protruding from it (see WO, application N 85/05329, class B 60 C 11/14, 1985).

As solids use silica particles, hollow silicate or aluminosilicate particles, particles of solid wood or hard rubber, the inclusion of solid polymer or aluminium oxide particles.

These examples of performance tread with increased coupling properties have a number of common disadvantages. Introduced into the protector of the solid particles do not provide a significant increase in the coefficient of traction in heavy icing, typical for countries with cold climate. In addition, the number and size of solid particles is limited by the effect of these impurities on the properties of the tread, and the destructive impact on the working tread surface, produced as a result of withdrawing solid particles from the tread in contact with the road surface. Some of these problems are solved by the introduction before vulcanization in the tread material of the wire segments, the ends of which are directed to the surface of the tread and partially protrude above it (see GB patent N 38041 the maximum ground pressure occurs in the middle part of the tread, therefore, uniform distribution of solid particles throughout the volume of the tread inefficient. Therefore, the friction elements are often concentrated in certain points of the protector in the form of vulcanized to the tread rubber inserts containing solid particles (see FR, patent N 1365406, class B 60 C 11/14, 1964).

However, the main problem consisting in providing satisfactory adhesion with the road surface in conditions of severe icing, can be solved only in the case of the use of solid metal studs installed on the working surface of the tread.

The most widespread are permanently installed in the protector spikes. Most often they are rods of cylindrical shape, made of high strength material and are mounted with an interference fit in the holes previously made in the tread. Spikes usually provide heads of various shapes, providing a more secure fit of the tenon in the tread. However, the use of such spikes is associated with a number of problems.

First, pulling out thorns from the tread contact with the road due to poor fixation using the above tools. For solutions where additional locking dowel through the use of the forces of elasticity, arise during the deformation of the tread while driving, pre-heat the tenon to improve relations dowel with rubber or imposed in connection dowel with rubber adhesive (SU, ed. St. N 1669770, B 60 C 11/14, 1988).

The most effective from a technological point of view the method is to install the spike in crude rubber and subsequent vulcanization of the whole structure Assembly (FR, patent N 1365406 or FR, patent N 2320198, class B 60 C 11/14, 1973).

Secondly, the interaction of the spike with the road it is heated to a high temperature, which causes heating of the adjacent layers of rubber: this leads to accelerated local aging of the rubber, the loss of its elastic properties and attenuation fixation of the spine.

Thirdly, with significant tread wear is a big part of the spine is protruding from the tread and under the action resulting from contact with the road significant bending efforts spike, made of hard but brittle materials, breaks down.

Fourth, the impact of the thorn from the side of the road, is transmitted to the adjacent layers of rubber, which leads to accelerated destruction of connections dowel with rubber. To avoid this, the spikes are placed in the insert of a harder rubber than ustroystva adopted the device of the anti-skid element for a tire wheel of the vehicle from US, patent N 3805866, class B 60 C 11/14, 1974, containing made of solid material thorn installed in a preformed sleeve of thermoplastic synthetic rubber, is placed and fixed in the corresponding slot checkers lug tread part of the tire wheel of the vehicle, while the end of the dowel protrudes from the bushing.

Fixing the bushing in the socket protector is performed by gluing.

The disadvantage of this anti-skid element is that when solving the problem for reliable fixing of a thorn in the sleeve by vulcanization of the sleeve was not taken into account that the installation sleeve into the socket vulcanized tread you must take appropriate drilling in past cure of the tire. The drilling process violates the integrity of the bonds rubber, which negates all the advantages of the reliable fixation of the spine, as all the above-mentioned drawbacks appear in place of the adhesive connection of the sleeve and protector.

Known from the same source, the method of manufacturing the anti-skid element for a tire wheel of the vehicle, which consists in the manufacture of synthetic thermoplastic rubber bushings>/P>The disadvantage of this method is that after vulcanization of the sleeve it is a molded at the molecular level structure, which must be glued to also formed at the molecular level due to the vulcanization of the assembled bus. In this way, production element, anti-skid in place gluing the sleeve and the tread rubber of the tire is formed, the area disturbed by properties, relationships, and therefore appear the same drawbacks as discussed earlier in relation to the normal spikes. Due to the heterogeneity of the zone properties bonding and rubber is the destruction zone gluing.

Also known from US patent N 3805866, a method of manufacturing Osipovna tires, which consists in assembling the raw tire with subsequent vulcanization, the execution of nests in checkers lug tread part of the tire, installed in a socket sleeves of synthetic thermoplastic rubber with anti-skid spikes of solid material and fixing plugs in the sockets.

This method has the same disadvantages as mentioned in relation to the anti-skid element and method of its manufacture.

The present invention is directed to solving technical Zina from the accelerated destruction due to force action on the part of the thorn, organization of heat from the cleat and the increase of resistance of the thorn bending loads. Achievable technical result is to increase the service life Osipovna bus and its reliability in operation.

Problem solving is achieved by combining all the best solutions to these problems on the existing level of technology.

This technical result is achieved by the fact that the anti-skid element for a tire wheel of the vehicle, containing made of solid material thorn installed in a preformed sleeve of thermoplastic synthetic rubber, is placed and fixed in the corresponding slot checkers lug tread part of the tire wheel of the vehicle, while the end of the dowel protrudes from the bushing, the latter is made of ebony devulcanizing rubber, and the thorn of a rigid material covered with copper-containing material, and the thorn in the sleeve and the sleeve in the tread part of the collected raw tire fixed by vulcanization.

Furthermore, ebony devulcanizing rubber sleeve further includes particles of a material with a hardness equal to or larger TV is wow, spike made of hard alloy made curly along generatrix and the base.

In terms of method of manufacture of the anti-skid element specified technical result is achieved in that the method consists in the manufacture of thermoplastic synthetic rubber bushings given geometric shape, the fixation of the anti-skid spike in the sleeve, made of ebony devulcanizing rubber, and a thorn from a solid alloy cover the copper-containing material, the fixation of a thorn in the sleeve is carried out at the vulcanization of the raw collected tires.

In terms of method of manufacture Osipovna bus this technical result is achieved in that the method consists in the Assembly of the raw tire with subsequent vulcanization, the execution of nests in checkers lug tread part of the tire, installed in a socket sleeves of synthetic thermoplastic rubber with anti-skid spikes of solid material and fixing the bushing in the nests, while the sleeves are made of devulcanizing ebonite rubber and installed in nests made in the raw tread tape at the geometric centers of checkers lug, and Osipovna tape fix on the procurement of the raw tire,rotary molecular communication through the copper-containing material, sulfur and rubber hard rubber and the tread rubber during vulcanization of the assembled tire.

These characteristics are essential and interrelated with the formation of a stable set of essential features, sufficient to obtain the desired technical result.

Thus, the manufacture of the sleeve from the ebony devulcanizing rubber with placing in it the cleat snow-covered copper-containing material, allows for the simultaneous vulcanization of the raw tire and sleeves to organize reliable fastening at the expense of the molecular bonds of the sleeve with rubber tread and cleat with Bush.

The present invention is illustrated with specific examples, which, however, are not only possible, but clearly demonstrate the possibility of achieving a given set of features required technical result.

In Fig. 1 shows the anti-skid element, a longitudinal section through the anti-skid spike standard; Fig. 2 - placement of snow in the tread rubber of the tire before vulcanization; Fig. 3 - placement of snow in the tread part of the tire after vulcanization; on ansporting means; in Fig. 6 first example execution figure of a thorn in the sleeve; Fig. 7 is a second example of execution figured the cleat of Fig. 8 is a view of A in Fig. 7; Fig. 9 - spike in the form of a hollow cylinder.

The anti-skid element for a tire wheel of the vehicle includes a thorn 1 of a rigid material that serves to improve the adhesion of the wheels and the road surface, especially under conditions of heavy icing. In Fig. 1 shows the spike 1 traditional cylindrical shape. Spike placed in a pre-molded rubber sleeve 2 and is one of its end on the sleeve. The rubber bushing is a solid devulcanizing thermoplastic synthetic rubber, in particular devulcanizing ebonite rubber. The sleeve 2 may be made of a homogeneous rubber or ebonite this rubber may include additional solid particles. While the hardness of these particles must be equal to or greater than the hardness of the vulcanized rubber of the tread portion of the tire wheel of the vehicle. The sleeve may have any geometric shape, for example cylindrical or conical.

To improve the coupling relations of ebony stud with a rubber anti-skid spike covered with honey is popular level, which increases the reliability of fixing of a thorn in the sleeve.

This sleeve has independent significance, because it can be used for the manufacture Osipovna tires both at the stage of raw Assembly and repair of the vulcanized tire.

Production of anti-skid elements is performed by executing a given geometric shape of the sleeves (e.g., by molding) of crude devulcanizing ebonite rubber and the room they are covered with copper-containing material spikes. After this is made so the anti-skid elements installed in nests made in the centers of checkers raw tread belt 3. Geometric centers of checkers on the ribbon 3 correspond to the geometric centers of the sticks in the mold of a vulcanizer. After this tread strips, fitted sleeves with spikes attached to the raw blank of the tire. Fixing the bushing in the tread belt and studs bushings occurs during the vulcanization of the assembled tire in the mold of a vulcanizer. Thus, by establishing the adhesive and chemical bonds between the sleeve and protector, as well as between ebony sleeve and covered with a copper-containing material thorn is nadejatsja through molecular communication through the copper-containing material, sulfur and rubber hard rubber and the tread rubber during vulcanization of the raw collected tires.

Sleeve of hard rubber raw rubber can be made from a mixture of ebonite rubber 4 distributed by volume of a metal or metallic particles 5. In this case, the sleeve serves to prevent the damaging effects of a thorn on the material of the tread, which takes place during the contact of the stud with the road surface, as well as for removal of heat generated in the tire from the spike due to impact and friction with the road. For heat dissipation are metal particles in contact with each other and with the surface of a thorn. Due to the formation-facing surface of the tire chains vzaimokompensiruyuschim particles heat is distributed over the volume of the sleeve and is discharged in the atmosphere as shown in Fig. 4.

As the metal particles can be used scrap metal and metallic particles are particles covered with a metal layer. In any case, you should consider the possibility of their binding with ebonite rubber during vulcanization.

There are several examples of execution of the anti-skid spike, providing increased soprotivlenie use long studs (for example, in the case when the length of the spike is equal to the height of grouser). The spike can be installed in a protective sleeve 6 of conductive material or metal, having ribs that are located perpendicular to the axis of the spike (Fig. 6). In the example of execution according to Fig. 7 and 8 in a protective sleeve 7 ribs are located along the axis of the spike. It is also possible execution of the spine in the form of a hollow thin-walled cylinder 8 with an enlarged outer diameter (Fig. 9). In Fig. 6-9 are examples of the combined performance of the anti-skid spike, but the execution of the spine in the form of sleeves. This implementation provides a significant increase in resistance to bending.

The present invention allows to create Osipovna winter tyre for vehicles with high performance. The invention is industrially applicable as for its manufacture requires standard equipment used for the manufacture of tires.

1. The anti-skid element for a tire wheel of the vehicle, containing made of solid material thorn, set in pre-otterbine sleeve of thermoplastic synthetic rubber, is placed and sufix is a, at the end of a stud protrudes from the bushing, wherein the bushing is made of ebonite devulcanizing rubber, and the thorn of a rigid material covered with copper-containing material, and the thorn in the sleeve and the sleeve in the tread part of the collected raw tire fixed by vulcanization.

2. Item under item 1, characterized in that the ebony devulcanizing rubber sleeve further includes particles of a material with a hardness equal to or greater than the hardness of the vulcanized rubber of the tread portion of the tire wheel of the vehicle.

3. Item under item 1, characterized in that the spike of hard alloy made curly along generatrix and the base.

4. A method of manufacturing the anti-skid element for a tire wheel of the vehicle, which consists in the manufacture of thermoplastic synthetic rubber bushings predetermined geometric shape and fixation of the anti-skid spike in the sleeve, wherein the sleeve is made of ebony devulcanizing rubber, and a thorn from a solid alloy cover the copper-containing material, the fixation of a thorn in the sleeve is carried out at the vulcanization of the raw collected tires.

5. A method of manufacturing Osip is notacow the tread part of the tire, installed in socket sleeves of synthetic thermoplastic rubber with anti-skid spikes of solid material and fixing the bushing in the slots, wherein the sleeves are made of devulcanizing ebonite rubber and installed in nests made in the raw tread tape at the geometric centers of checkers lug, and Osipovna tape fix on the procurement of the raw tire, and the fixation spikes carbide bushings and sleeves in the tread part of the tyre is carried out through molecular communication through the copper-containing material, sulfur and rubber hard rubber and the tread rubber during vulcanization of the assembled tire.

 

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