To provide a pneumatic tire which can reduce deterioration of design property of a tire side surface due to spew while restraining molding defect of protrusion of a region of buttress as well as a tire vulcanization die used to vulcanization molding of the pneumatic tire.SOLUTION: The pneumatic tire comprises a pair of bead portions, a pair of side wall portions which extends from the bead portions to outside of tire radial direction, a tread part which strings to an outside end of each tire radial direction of the pair of side wall portions, a plurality of protrusions 12 which are provided along a tire circumferential direction on the buttress region of the side wall portions and a plurality of spews 20 which protrude from a surface 12s of the protrusion 12. The pneumatic tire is provided with at least one spew 20 on each rectangle zones 12a-12q about each of the plurality of sides 12A-12Q which form a circumference of the surface 12s of the protrusion 12 when a distance from the sides 12A-12Q define rectangle zones 12a-12q ranging within 2.5 mm to the surface 12s of the protrusion 12.SELECTED DRAWING: Figure 3

    【課題】バットレス領域の突起の成形不良を抑制しつつ、スピューによるタイヤ側面のデザイン性の悪化を軽減できる空気入りタイヤと、その空気入りタイヤの加硫成形に用いられるタイヤ加硫金型を提供する。【解決手段】一対のビード部と、そのビード部からタイヤ径方向外側に延びる一対のサイドウォール部と、一対のサイドウォール部の各々のタイヤ径方向外側端に連なるトレッド部と、サイドウォール部のバットレス領域にタイヤ周方向に沿って設けられた複数の突起12と、突起12の表面12sから突出している複数のスピュー20とを備える。突起12の表面12sの周囲を形成する複数の辺12A〜12Qの各々について、その辺12A〜12Qからの距離が2.5mm以内の範囲となる矩形区域12a〜12qを突起12の表面12sに画定したときに、矩形区域12a〜12qの各々に少なくとも1つのスピュー20が設けられている。【選択図】図3


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    Title :

    PNEUMATIC TIRE AND TIRE VULCANIZATION DIE


    Additional title:

    空気入りタイヤ及びタイヤ加硫金型


    Contributors:

    Publication date :

    2019-06-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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