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US 8,075,718 B2Granted
Manufacturing method for heavy-duty pneumatic tire and tire manufactured by the same
AssigneeHankook Tire Co., Ltd.
InventorsYun Chang Chun, Seung Il Min
Life of this patent
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Abstract
Disclosed are a method for manufacturing a heavy-duty pneumatic tire by winding a reinforcing belt disposed in a belt layer of a tread with an untopped spiral steel cord, and a tire manufactured by the same.
Claims6
A method for manufacturing a heavy-duty pneumatic tire which is equipped with a belt layer including a reinforcing belt formed by winding a steel cord between a second belt and a third belt which are wound on a forming drum, the manufacturing method comprising:
- winding and attaching the second belt attached with a lower rubber sheet onto the forming drum;
- forming a reinforcing belt by simultaneously supplying and winding a plurality of strands of untopped steel cord on the lower rubber sheet;
- disposing a weft yarn on the reinforcing belt in the form of waves;
- and
- mounting an upper rubber sheet pre-attached to the third belt on the reinforcing belt and the weft yarn.
2 more elements
Dependencies are inferred from the claim text.