| 摘要 |
PROBLEM TO BE SOLVED: To provide a snorkel wherein the bonding strength of a snorkel coupling part consisting of two halves is enhanced. SOLUTION: The snorkel 1 is equipped with a mouthpiece part 2, an opening 3, a tubular part 4 connected with the opening 3, and the coupling part 6 which is interposed between the mouthpiece part 2 and the tubular part 4 and where a check valve 11 is mounted. The coupling part 6 is structured so that the first half 21 and the second half 22 to form the coupling part abut on each other at their edges 23 and 24, and is covered with a band-shaped part 25 welded to the coupling part 6 from outside. COPYRIGHT: (C)2004,JPO
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