| 摘要 |
PROBLEM TO BE SOLVED: To mount a spout attachably/detachably on a fluid pouch while securing good liquid tightness and attachability/detachability.SOLUTION: The attachable/detachable spout 11 attached to a storage vessel of a fluid includes: a spout body 12 inserted in a spout attachment part 5 becoming an outlet of the storage vessel of the fluid (for example the fluid pouch 1) in which the fluid is housed; a spout passage 14 formed in the spout body 12 to let the inside of a housing chamber 4 of the storage vessel of the fluid communicate with the outside; and radially expanding sealing means (26 and 28) arranged annularly around the spout body 12, and expanding inward of the spout attachment part 5 to liquid tight seal the part between the spout body 12 and the spout attachment part 5 and to fix the spout body 12 to the spout attachment part 5. |
