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To provide a method of manufacturing a sealant containing tire tube, which is capable of simply opening a sealant filling hole without use of any specialized jig, and a vulcanizing die therefor. A vulcanizing die includes an upper die, a lower die, and a filling hole opening device. The filling hole

To provide a method of manufacturing a sealant containing tire tube, which is capable of simply opening a sealant filling hole without use of any specialized jig, and a vulcanizing die therefor. A vulcanizing die includes an upper die, a lower die, and a filling hole opening device. The filling hole opening device includes a linear actuator, a drive shaft, and a cutter. The lower die has a cutter passage which passes through the vulcanizing die from outside to inside, and a cut piece recovery passage which extends from the outside of the vulcanizing die to a portion, near the inner opening end, of the cutter passage. The drive shaft of the linear actuator is inserted in the cutter passage, and the cutter is fixed to one end of the drive shaft.

대표청구항 ▼

[ What is claimed is:] [1.] A method of manufacturing a sealant containing tire tube which includes an air chamber filled with air and a sealant chamber filled with a sealant, said method comprising:forming, by extrusion-molding, a tube material wherein an inside of a peripheral wall having an appro

[ What is claimed is:] [1.] A method of manufacturing a sealant containing tire tube which includes an air chamber filled with air and a sealant chamber filled with a sealant, said method comprising:forming, by extrusion-molding, a tube material wherein an inside of a peripheral wall having an approximately circular shape in cross section is partitioned by a partition wall into an air chamber and a sealant chamber;joining both ends of the tube material to each other in an annular shape;setting the annular tube material in a vulcanizing die;opening a sealant filling hole in the peripheral wall of the tube material having been set in the vulcanizing die, said filling hole being in communication with the sealant chamber;heating the vulcanizing die, thereby vulcanizing the tube material to form a tube;ejecting the tube thus vulcanized from the vulcanizing die;filling the sealant chamber with a sealant through a sealant filling hole; andclosing the sealant filling hole.