To provide a tire vulcanization mold and a method for manufacturing tires in which dirt is less likely to be deposited in recesses arranged on the molding surface.SOLUTION: A tire vulcanization mold 1 includes a molding surface 10 for molding a tire during vulcanization molding, the molding surface 10 including a first region 11 with a plurality of recesses 13 for forming a plurality of projections on the tire surface. The first region 11 has two or more recesses 13 per 1 mm2. Each of the recesses 13 includes a sidewall surface 15, a bottom surface 20, and a hypothetical recess center axis 13c extending in the depth direction of the recess 13. In a cross-sectional view of the recess 13 including the recess center axis 13c, the bottom surface 20 includes a bottom projection 25 that is convex outwardly in the direction of depth. The sidewall surface 15 includes an arcuate surface 16 that is smoothly connected to the bottom surface.SELECTED DRAWING: Figure 4
【課題】成形面に配された凹部に汚れが堆積しにくいタイヤ加硫金型及びタイヤの製造方法を提供する。【解決手段】タイヤ加硫金型1である。加硫成形時にタイヤを成形するための成形面10を含み、成形面10は、タイヤ表面に複数の突起を形成するための複数の凹部13が設けられた第1領域11を含む。第1領域11には、1mm2当たり凹部13が2個以上配置されている。凹部13のそれぞれは、側壁面15と、底面20と、凹部13の深さ方向に延びる仮想の凹部中心軸線13cとを含む。凹部中心軸線13cを含む凹部13の断面視において、底面20は、深さ方向の外方に凸となる底部突起25を含む。側壁面15は、底面に滑らかに連なる円弧面16を含む。【選択図】図4
TIRE VULCANIZING DIE, TIRE MANUFACTURING METHOD AND TIRE
タイヤ加硫金型、タイヤの製造方法及びタイヤ
09.03.2023
Patent
Elektronische Ressource
Japanisch
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