RUBBER ARTICLE MOLD AND METHOD FOR MANUFACTURING RUBBER ARTICLE MOLD
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United States of America Patent
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app pub date -
Jun 7, 2016
filing date -
Jun 9, 2015
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Abstract
A rubber article mold capable of discharging air from a molding-surface side to a back-surface side during curing while restraining entry of rubber into an air vent hole and a method for producing such a rubber article mold are provided. The rubber article mold including portions for discharging air from a molding-surface side to a back-surface side, including a hole penetrating from a molding surface to a back surface of the mold and a valve member within the hole to provide a predetermined clearance between the valve member and a hole wall forming the hole. The hole has an inflow area where the air on the molding-surface side flows in, a discharge area for discharging the air flowed in from the inflow area to the back-surface side, and an intermediate area smaller in diameter than the inflow area and the discharge area and communicating with the inflow and discharge areas.
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