| 摘要 |
PROBLEM TO BE SOLVED: To easily and surely prevent an occurrence of puncture caused by a contact between the wall surfaces of tubes. SOLUTION: An outer partition wall 5o and an inner partition wall 5i are built (like a bridge) inside the peripheral wall 4 of a tube 2, which is accommodated in a tire 1, thereby forming an outer sealant chamber 7o and an inner sealant chamber 7i, which are filled with a sealant, and an air chamber 3 surrounded by the chambers 7o, 7i. When the tire 1 runs on an obstacle so that both the tire 1 and the tube 2 are held/pressed by a flange part 12 of a rim (R) and the obstacle, the shock is relieved by the outer partition wall 5o, the inner partition wall 5i, and the sealant 8, thereby preventing the damage of the tube 2. If the tube 2 should be damaged, since the damaged is mended by the sealant 8, there will be no air-leakage from the air chamber 3. |
