Jungheinrich Cushion Tire Forklift San Diego

Pneumatic Tires

Most of the tires that have been used over the last 100 years have been pneumatic tires. They are constructed of rubber and allow for a way more comfortable ride compared to other kinds of materials. The contemporary transportation system of the world depends completely on pneumatic tires.



The pneumatic tire is a toughened rubber tire and is then compressed with air. Motor vehicles like for instance airplanes, motorcycles, cars, trucks and buses all use pneumatic tires. Wheeled vehicles which are not motorized, such as bicycles, also utilize pneumatic tires.



History

The tire began after the invention or iron bands utilized around wooden wheels. It wasn't until the middle part of the 19th century that the utilization of solid rubber in the construction of tires. The very first patent for a successful pneumatic tire was issued in 1888 to Irishman John Dunlop who invented an inner-tube for a bicycle tire. This was when the term "pneumatic" started to describe tires.



Seven years after, in the year 1895, Andre and Edouard Michelin produced pneumatic tires for a car in France. The Michelin brothers' company was destined to become a top manufacturer of tires for cars. The very first U.S. company to make tires was Goodyear Tire company established in the year 1898, followed by the Firestone Tire & Rubber company in 1900, the second United States company to produce tires.



Function

For the first half of the 20th century, pneumatic tires needed a rubber inner tube in order to hold the air pressure. Tires were made of toughened layers of plies or cord covered with rubber. The plies were laid on an angle or bias to strengthen it and to define the shape of the tire. These "bias ply" tires had a tread pattern for traction.



Modern radial tires are made with the plies running at 90 degrees across the body of the tire. Inner tube is not required since the tire forms an airtight seal with the wheel. This was an invention of the Michelin company in the year 1948. The tires did not become widely used until the latter parts of the 1970s. Radial tires last longer and provide better fuel economy.

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