| 摘要 |
PURPOSE:To facilitate the installation and removal of various shapes of snorkels by providing a curved part for fixing a snorkel to a curve holder made of synthetic resin. CONSTITUTION:An snorkel 6 is set to the opened-angle shaped projection parts 4 of a synthetic resin curve holder 1 and fitted into its curved part 3. On the other hand, the spherical projection part 2 of the holder 1 is inserted into a groove on a mask 5 side, to install the snorkel 6. Since an oblique groove is provided on the mask 5 side, the curve holder 1 can be freely moved in obliquely up and down, right and left, and rear and forth, thereby, without tiring the mouth, etc. even if it is held in the mouth for a long time.
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