Tire pneumatic radial tires

 

(57) Abstract:

Usage: the invention relates to the tire industry and, in particular, to the design of the carcass of radial tractor tires.

The essence of the invention: on the bottom of the first layer of the frame is superimposed rubber mixture for more, without inversion on the side of the ring, the layer inclination angle cord less 5 to 10othan the main layer and the additional layer ends below the average line through the widest part of the profile, and the angle of inclination of the cords in the additional layer is made at an angle 0oto the horizontal axis and the additional layer made of steel cords 123 science and technology committees (structure 93,5 Tex x1/x2), 3 C.p. f-crystals, 1 Il.

The invention relates to the tire industry and, in particular, to the design of the carcass of radial tractor tires.

Known tires 13,R models I-261, NP-318, 12,R models NP-394, in the frame of which is applied polyamide cord brand type 23 science and technology committees, 25 science and technology committees (patterns 187 Tex. HH) [1]

Also known tires (see [2] [4]) with frame and diagonal or radial, with the amplifiers of the frame, in which an additional overlay of one or more ply on the merits of lesuuda inside the frame, and separately on the bottom of the 1st layer was not provided.

For the prototype, you can make [4] it is achieved by a simple increase of the upper zone of the sidewall with two additional layers located inside the frame, and the main layers of the frame have a gap in the crown part.

The prototype is a radial tire design.

The purpose of the invention is the elimination of a defect in the tires from the side of the first layer of the frame during its production and increase the reliability of the design.

The positive effect is achieved by superimposing a layer of rubber coated fabric instead of the rubber layer, for example, 123 science and technology committees (patterns 93,5 Tex. HH) with angle Sacrae smaller angle Sacrae main layers of the framework, namely at an angle 0owith the aim to reduce the health layer during operation of the tire. The angle of Sacrae additional layer selected experimentally, and the rubber mixture, reaching its brezinka differs from the rubber compound layer of a high content of fillers that increase the stiffness of the mixture.

The drawing shows the profile tires.

The lid consists of a frame 1, breaker 2, a tread 3, sides 4, the input layer 5.

In vivoda to its destruction at low mileage.

Option offer as the invention is devoid of this shortcoming. Tires have run 1.5 to 2.0 times higher than tires made by serial technology.

Achieved and the purpose of the invention improve specific quality tires. According to the results of bulk sampling achieved positive results.

Sources of information taken into account in the examination:

1. Directory tyre plant

2. U.S. patent N 3554261

3. U.S. patent N 3897475

4. The UK patent N 1235147 prototype.

1. Tire pneumatic tires of radial structure containing protector, Brecker, the frame with a meridional arrangement of the filaments in the layers of rubber coated fabric, characterized in that on the bottom of the first layer of the frame is superimposed rubber mixture without additional inversion side of the ring layer angle-ply, less 5 10othan the main layers.

2. Tire under item 1, characterized in that the additional layer ends below the average line through the widest part of the profile.

3. The lid on the PP.1 and 2, characterized in that the angle of the cords in the additional layer is made at an angle 0othe horizontal axis.


 

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