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    • 4. 发明申请
    • TIRE MOLD AND METHOD FOR MAKING A TIRE MOLD
    • 轮胎模具和制作轮胎模具的方法
    • WO2004041499A1
    • 2004-05-21
    • PCT/US2003/034353
    • 2003-10-28
    • SOCIETE DE TECHNOLOGIE MICHELINMICHELIN RECHERCHE ET TECHNIQUE S.A.WARD, Keith
    • WARD, Keith
    • B29C33/44
    • B29D30/0629B29D2030/0617B29D2030/063
    • A tire mold according to the invention includes a plurality of tread sectors (20) for forming a tread portion of a tire and two shell inserts (24) for molding the sidewalls of a tire wherein the tread sectors and the shell inserts are castings formed from the same model. A method for manufacturing a mold in accordance with the invention includes the steps of providing a casting model having the tread and sidewall features of a tire, the casting model having parting zones between the tread and sidewall, casting an element (50) from the model, the cast element (50) accordingly having parting zones (54) between the tread (56) and sidewall portions (58), and separating the cast element into a plurality of tread sectors (20) and opposing sidewall shells (24). An advantage of casting the molding parts, the tread sectors and sidewall shells from a single casting model is that deeper and more complex features can be formed in the sidewall shells, and the features extending from the tread onto the sidewall can be better aligned and better conformed in size, shape and appearance.
    • 根据本发明的轮胎模具包括用于形成轮胎的胎面部分的多个胎面扇区(20)和用于模制轮胎侧壁的两个壳体插入件(24),其中胎面扇区和壳体插入件是由 相同的型号。 根据本发明的制造模具的方法包括以下步骤:提供具有轮胎的胎面和侧壁特征的铸造模型,所述铸造模型在胎面和侧壁之间具有分型区,从模型铸造元件(50) 铸造元件(50)相应地具有在胎面(56)和侧壁部分(58)之间的分型区(54),并且将浇铸元件分离成多个胎面扇区(20)和相对的侧壁壳(24)。 从单个铸造模型铸造模制部件,胎面部分和侧壁壳体的优点是可以在侧壁壳体中形成更深和更复杂的特征,并且从胎面延伸到侧壁上的特征可以更好地对准和更好地 符合尺寸,形状和外观。