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Mould for making a wear indicator into a pneumatic tyre and a pneumatic tyre comprising a wear indicator
Mould for making a wear indicator into a pneumatic tyre and a pneumatic tyre comprising a wear indicator
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机译:用于将磨损指示器制成充气轮胎的模具以及包括该磨损指示器的充气轮胎
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摘要
A pneumatic tyre with a wear indicator may be manufactured by inserting rods of a mould into the tire tread during manufacturing. A mould may include at least seven rods extending in parallel in a direction of height on a same side of an object and connected to the object. The rods are arranged so multiple distances are left between the cross sections of the rods and a minimum of the multiple distances ≥0.5 mm. In the direction of height, the cross section and/or the height of at least some of the rods varies so at a number of different height positions, the cross sections of the rods at those height positions define that number of different mirror-image symbols, of which mirror images are expressible by the wear indicator, one mirror-image symbol corresponding to one height position, with at least two different height positions and mirror-image symbols.
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