Tire of a cargo pneumatic tire 12.00 P 20 ply 18

摘要

The utility model relates to the field of automobile tires, in particular to the construction of tires for pneumatic pneumatic tires, can be used in the tire industry for tires of pneumatic tires 12.00 Р 20 with a ply norm of 18 (with a maximum allowable load of 3750 kgf per single tire with an internal tire pressure 8.7 kgf / cm). The well-known tire designs described in the patents are designed for tires of various sizes, maximum permissible loads, differ in the characteristics of the used cords of the carcass, their co t he, different material consumption tire carcass building scheme. They do not indicate all the options for the possible performance of tires. A tire of a pneumatic cargo tire with a radial design of 12.00 P 20 was developed with a ply norm of 18, containing a tread, belt, sidewalls, carcass consisting of the outer and inner groups of layers of rubberized cord, filler cords, flanges made with one side ring, characterized in that the number of side wires with a breaking strength of at least 142.3 kgf in the section of the side ring is 132 pieces, the side ring of the structure is 11 × 12, the frame contains 4 layers of rubber veneer cord made of cord threads with a strength of 450 N (45.9 kgf / thread), the inner group of layers of the frame consists of two layers of cord with a frequency of threads 83 ± 4 pieces per 100 mm, wrapped on the bead ring, and the outer group of layers the frame consists of two layers of cord with a frequency of threads with a lower frequency of threads 60 ± 4 pieces per 100 mm, wrapped under the bead ring, the total thickness of the rubberized layers of the cord of the frame (taking into account the rubber layer) 6.5 ± 0.4 mm. Tires according to this Utility models are manufactured according to standard technology using ndartnogo equipment. Tests of experimental tires of pneumatic tires made using the proposed technical solution showed their reliable performance, successfully passed operational tests, performance characteristics correspond to the standards established for these tires. The technical result of the utility model is to increase the margin of safety of the carcass and expand the arsenal of technical equipment while maintaining overall performance and operational characteristics of the pneumatic tire 12.00 P 20 ply standard 18.