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Heavy duty pneumatic tires including stepped tread zones for preventing uneven wearing
Heavy duty pneumatic tires including stepped tread zones for preventing uneven wearing
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机译:重型充气轮胎,包括台阶式胎面区域,可防止不均匀磨损
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摘要
An uneven wear-resisting heavy duty pneumatic tire comprises main grooves continuously extending in a tread of the tire along a circumference thereof, land portions separated by the main grooves, and stepped zones each provided in the land. Each stepped zone has a surface located radially inside of the tread by a step a viewed sectionally. Each of said stepped zones is separated from the adjacent land portions via a pair of circumferentially extending grooves or narrow cuts. An uneven wearing-sacrificing portion is formed by the surface of the stepped zone. The unever wear-sacrificed portion slide-contacts with the tread within the tread ground-contacting area for supporting the load exerted upon the tire.
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