To suppress occurrence of failures.SOLUTION: A tire forming die 101 includes: a plurality of sectors 101A divided in a tire circumferential direction; a blade portion 121 extending in a tire radial direction from a tread forming surface 103 in the sector 101A; and multiple sipe blades 120 provided in the tire circumferential direction of one sector 101A and having an enlarged portion 122 that is enlarged from a width Wt of the blade portion 121 at an extending end of the blade portion 121, in which the enlarged portion 122 of the sipe blade 120, provided near the division position 101Aa between sectors 101A in one sector 101A, is formed so as to be largely biased toward the division position 101Aa side with respect to the blade portion 121.SELECTED DRAWING: Figure 6

    【課題】故障の発生を抑制すること。【解決手段】タイヤ成形用金型101は、タイヤ周方向に分割される複数のセクター101Aと、セクター101Aにおけるトレッド成形面103からタイヤ径方向に延在するブレード部121およびブレード部121の延在端においてブレード部121の幅Wtから拡大する拡大部122を有し1つのセクター101Aのタイヤ周方向に複数設けられたサイプブレード120と、を含み、1つのセクター101Aにおいてセクター101A同士の分割位置101Aa付近に設けられたサイプブレード120は、拡大部122がブレード部121に対して分割位置101Aa側寄りに大きく偏って形成されている。【選択図】図6


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    Title :

    TIRE FORMING DIE AND TIRE


    Additional title:

    タイヤ成形用金型およびタイヤ


    Contributors:

    Publication date :

    2021-09-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B60C VEHICLE TYRES , Fahrzeugreifen



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