Tire mold
AssigneeCheng Shin Tire & Rubber (China) Co., Ltd.
InventorsJun Zhang, Hai Wang, Xian-Sheng Yin, Yang Lu
Life of this patent
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Abstract
A tire mold for processing a green tire includes a movable block, an upper sidewall plate, and a lower sidewall plate. A curved surface corresponding to the green tire is provided at a junction of the movable block and the upper sidewall plate/the lower sidewall plate. The movable block, the upper sidewall plate and the lower sidewall plate cooperate with each other to surround a tire cavity for accommodating the green tire. Thereby, the edge of the upper sidewall plate or the lower sidewall plate won't penetrate the green tire to form a joint fin when the mold is closed, which is beneficial to save the rubber material, improves production efficiency and reduces manufacturing costs.
Claims9
A tire mold for processing a green tire, comprising:
- a movable block;
- an upper sidewall plate coupled to the movable block, and
- a lower sidewall plate coupled to the movable block, wherein a curved surface corresponding to the green tire is configured to extend at a junction of the movable block with the lower sidewall plate and at a junction of the movable block with the upper sidewall plate, the curved surface having a radius ranging between 0.5 mm and 4 mm;
- wherein the movable block, the upper sidewall plate and the lower sidewall plate cooperate with each other to define a tire cavity for accommodating the green tire, and wherein the curved surface forms a smooth transition between the movable block and the upper sidewall plate and between the movable block and the lower sidewall plate, thereby preventing a sharp-angled interference between edges of the upper and lower sidewall plates with the tire cavity.
Dependencies are inferred from the claim text.