| 摘要 |
<p>PURPOSE: To obtain a constitution capable of completely airtightly sealing the port of a sonde balloon. CONSTITUTION: The closing member or a valve member 13 is engaged as an airtight holder at the inside of the hose-like neck of a sonde balloon 10 and comprises a ring 12 for bundling the free opening of the neck 11 of the balloon. The closing member or the member 13 for closing the neck 11 is mounted in the neck 11 at the upper position of the ring 12. The free end of the opening bundled by the ring 12 is drawn from the ring 12, folded outward along the ring 12, and the folded superposed part 11b is disposed double with the neck 11 at the outside of the closing member or member 13 in such a manner that the inner diameter of the ring 12 is smaller than the diameter of the cylinder part 13a of the member 13. The ring 12 is seated at the inside of the bottom 13a of the closing member or member 13, and brought into tight contact with it airtightly by the rising force of the balloon 10.</p> |
