Dunlop, he first made a tire out of rubber sheets and attached it to a wooden wheel. The part that touches the ground is covered with a thick canvas bag.

Then put it on a tricycle and experiment, and the tire was born.

After that, the rubber sheet was glued to the tire canvas and tested on a larger two-wheeled bicycle. The results showed that the performance was very good.

Since then, the first pneumatic tire was born.

189 1 C. k. Welch invented the steel ball tire, which is an indispensable part in the tire development history.

189 1 year, Michelin brothers invented the manual disassembly patent, 1904, Firestone and Goodyear developed the column edge.

By 1908, almost all American manufacturing industries have adopted this manufacturing method.

19 13 years, the radial tire was developed in Britain, and the knitting method of tire cord material was completely different from that of bias tire. However, it was used 35 years later.

By 1948, the Michelin brothers had come true. The curtain material is woven cotton silk, which is more expensive than cotton silk, so it can't be used.

Used as cord fabric material. Dupont Company of the United States continuously improved the basic theoretical system of synthetic reaction from 65438 to 0928, and developed rapidly in 1930s, which was better than Luo Yong before 1948.

Rayon with low heat content accounts for 75% of the market. Nylon cord fabric was developed by 1948, and it didn't compete with rayon in the market until 1959. 1960 its market price

Won the competition, to 1962, a new polyester curtain cloth appeared in the market.

From 65438 to 0970, steel cord fabric occupied the main market. 1980 follows Europe and stands firmly in front of the American market. 1972 USA

Dupont has developed a material with toughness five times stronger than steel wire, but it can only be used in a few cars because of its high price.

With the development of automobiles and roads, with the continuous progress of materials and manufacturing technology and the improvement of automobile performance, the mechanical properties of tires are paid more and more attention, especially automobile tires.

The development of automobile tires continuously improves the high speed, adaptability and safety, thus continuously developing novel, economical and reliable tires.

On flat roads and highways, the performance of tires and cars is getting better and better.