PROBLEM TO BE SOLVED: To prevent the generation of a crack around the spike pin driving hole of a tire after vulcanization by the projection of the design face of a sector mold while suppressing the increase of production cost.SOLUTION: A sector mold 2 has a pin-shaped projection 8 for forming a spike pin fitting hole to the tread part of a spike tire being provided so as to be projected from a design face 2a. In the projection 8, regarding the projections 8B, 8C provided at the nearest position at the edge in the circumferential direction of the design face 2a, the projecting direction directed from the design face 2a to the tip is tilted from the normal direction of the design face 2a in the base end to the outer direction.

    【課題】製造コストの増加を抑制しつつ、セクターモールドの意匠面の突起によって加硫後のタイヤのスパイクピン打込み穴の周囲にクラックが発生するのを防止する。【解決手段】セクターモールド2は、意匠面2aから突出して設けられ、スパイクタイヤのトレッド部にスパイクピン取り付け穴を形成するためのピン状の突起8を有する。突起8のうち、突起8のうちの意匠面2aの周方向端に最も近い位置に設けられた突起8B、8Cは、意匠面2aから先端に向かう突出方向が、突起8の基端における意匠面2aの法線方向から外向きに傾斜している。【選択図】図3


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    Title :

    VULCANIZATION DIE FOR SPIKE TIRE, VULCANIZATION METHOD AND SPIKE TIRE


    Additional title:

    スパイクタイヤ用加硫金型、加硫方法及びスパイクタイヤ


    Contributors:

    Publication date :

    2015-12-07


    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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