| 摘要 |
PROBLEM TO BE SOLVED: To obtain a nozzle for putting gas into a balloon through which the gas can be put into the balloon simply and where the gas put into the balloon is not leaked out. SOLUTION: The nozzle is provided with: a discharge pipe whose tip part is inserted to the put-in port of the balloon to discharge the gas into the balloon; and an umbrella-state guard part provided enlarging its diameter gradually in the direction of a rear end surrounding the discharge pipe. The umbrella-state guard part is provided with a smoothly tapered surface which adheres to an end part while enlarging the diameter of the end part of the put-in port of the balloon. COPYRIGHT: (C)2006,JPO&NCIPI
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