| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a tire reinforcing strip-like material, capable of manufacturing the reinforcing strip-like material different in the number of the ends of a reinforcing cord and the wall thickness (gauge) of a member without replacing a die one by one, and the structure of the die used in the method. SOLUTION: In this embodiment, the reinforcing cord Z is inserted into an extruder 12 and, when the outer periphery of the reinforcing cord is covered with a rubbery elastic material Wa, a rubber-coated reinforcing cord Za having a predetermined shape is obtained by the cord groove hole 18 formed to the die 13. That is, the flange groove part 19, which is connected to the cord groove hole 18 to form a flange part Wx of which the diameter is smaller than a cord diameter d, is formed to the cord groove hole 18 formed to the die 13. This flange groove part 19 is formed at a symmetric position with respect to the cord groove hole 18 but can be provided at an asymmetric position. COPYRIGHT: (C)2005,JPO&NCIPI |
