| 摘要 |
PROBLEM TO BE SOLVED: To provide an inflatable tube capable of being smoothly expanded without a risk of preventing an inflating operation that the tube is bent at the time of expansion and a risk of rupture of the tube. SOLUTION: An inflator tube stored folded or rounded, inflated by allowing gas to be flown from one end of the tube 1 so as to form a cylindrical bar, and finally hardening to maintain a shape, comprises a tube 1 formed in a cylindrical shape in expanded condition, a pipe 2 wound spirally on the inner or outer surface of the tube 1, and a cylinder 3 connected to one end of the tube 1 and the pipe 2 and installed to the tube 1 or a cylinder 3 having a flow control mechanism provided therein. When gas flows from the cylinder 3 to the tube 1 and the pipe 2, a gas pressure is varied for expansion of the tube.
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