Patent ID: 6159403
Filing Date: 2000-12-12
Classification: B29C,B29D,B29K,B29L

Abstract:
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.