MY123006A - Method of manufacturing sealant-containing tires, and sealant-containing tire - Google Patents

Abstract

OBJECT] TO CLEARLY DEFINE THE BOUNDARY BETWEEN A BONDED PORTION AND AN UNBONDED PORTION OF AN INNER LINER IN VULCANIZING A GREEN TIRE, THEREBY FORMING A SEALANT CHAMBER HAVING A DESIRED SHAPE. [CONSTITUTION] A GREEN TIRE 24 PREPARED BY BRINGING AN INNER LINER 2 INTO CONTACT WITH THE INNER SURFACE OF A TIRE BODY 1 IS SET BETWEEN AN UPPER DIE 29 AND A LOWER DIE 30. IN THIS CONDITION, A PRESSURE BAG 31 PLACED INSIDE THE GREEN TIRE 24 IS EXPANDED BY AIR PRESSURE TO PERFORM VULCANIZATION AND FORMING. PRIOR TO SUCH VULCANIZATION, A LUBRICATING SHEET 9 SUCH AS A FLUORO RESIN SHEET HAVING A LUBRICATING PROPERTY ON ONE SURFACE ONLY IS INTERPOSED BETWEEN A PART OF THE INNER LINER 2 AND THE TIRE BODY 1 IN SUCH A MANNER THAT THE LUBRICATIVE SURFACE OF THE LUBRICATING SHEET 9 IS OPPOSED TO THE INNER LINER 2. ACCORDINGLY, THIS PART OF THE INNER LINER 2 IS PREVENTED FROM BEING BONDED BY VULCANIZATION TO THE TIRE BODY L OWING TO THE PRESENCE OF THE LUBRICATING SHEET 9, THEREBY FORMING A SEALANT CHAMBER HAVING A DESIRED SHAPE FOR CONTAINING A SEALANT. IN THE CASE THAT THE LUBRICATING SHEET 9 IS FORMED OF A MATERIAL SOLUBLE IN THE SEALANT, A REDUCTION IN SEALABILITY OF THE SEALANT DUE TO THE LUBRICATING SHEET 9 LEFT IN THE SEALANT CHAMBER CAN BE AVOIDED.