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US 10,486,381 B2Granted
Tire mold and method for manufacturing tire mold
AssigneeBridgestone Corporation
InventorTomo Koyanagi
Life of this patent
Estimating the term…
Abstract
Tire mold subject to least energy loss from heat dissipation during a curing process and thus capable of improving a curing efficiency, the tire mold has hollow cavities therein and a heating medium that circulates inside the hollow cavities, thereby heating a tire through the mold.
Claims14
A tire mold for curing a tire by transferring heat to the tire, comprising:
- a plurality of hollow cavities formed inside the tire mold;
- and
- a heating medium held inside the plurality of hollow cavities and being for heating the tire via the tire mold, wherein:
- the plurality of hollow cavities are formed independently of each other, and
- a first distance from a surface of the tire mold of one of the hollow cavities formed in a center molding range having a thinnest gauge thickness of the tire is largest, a second distance from the surface of the tire mold of ones of the hollow cavities formed in shoulder molding ranges having a thickest gauge thickness of the tire is least, and a third distance of ones of the hollow cavities formed in buttress molding ranges having a gauge thickness greater than the center molding range and less than the shoulder molding ranges is less than the first distance and greater than the second distance.
2 more elements
Dependencies are inferred from the claim text.