| 摘要 |
A TUBE BLANK (2'') WHOSE INSIDE IS DIVIDED INTO AN AIR CHAMBER (3) AND A SEALANT CHAMBER (7) BY A PARTITION WALL, IS FORMED BY EXTRUSION AND CUT INTO A PREDETERMINED LENGTH. AN AIR VALVE ISMOUNTED TO THE TUBE BLANK (2'') TO COMMUNICATE WITH THE AIR CHAMBER (3) AND THEN, OPPOSITE ENDS OF THE TUBE BLANK (2'') IS BONDED BY PRESSURE BONDING AND VULCANIZED. A SEALANT CHARGING BORE (41) IS FORMED IN THE TUBE BLANK (2'') TO COMMUNICATE WITH THE SEALANT CHAMBER (7). THEREAFTER, AIR IS SUPPLIED TO THE AIR CHAMBER (3) THROUGH AN AIR VALVE TO URGE THE PARTITION WALL (5), THEREBY EXPELLING THE AIR FROM THE SEALANT CHAMBER (7). IN THIS STATE, A SEALANT IS SUPPLIED INTO THE SEALANT CHAMBER (7) THROUGH THE SEALANT CHARGING BORE. THE SEALANT CHARGING BORE (41) IS CLOSED BY AFFIXING A RAW RUBBER SHEET AND VULCANIZING IT. |
