| 摘要 |
PCT No. PCT/JP86/00267 Sec. 371 Date Jan. 27, 1987 Sec. 102(e) Date Jan. 27, 1987 PCT Filed May 27, 1986 PCT Pub. No. WO86/07032 PCT Pub. Date Dec. 4, 1986.A spout (1, 1A) attached to a paper container (C) into which is filled a beverage such as milk, juice or the like is made of an elastic material such as polyethylene resin in such a way that it comprises a main body (3) in the form of a pipe or a case passed through the wall of the container and a cover (2) for closing an opening of the main body (3), the main body and the cover being made as an integral body. The cover (2) and the main body (3) are interconnected with each other through a reduced-thickness separable portion (9) which is severed when the cover (2) is opened and through a reduced-thickness portion (7) which functions as a hinge portion when the cover (2) is opened. The main body (3) and the cover (2) have formed on the outer surfaces thereof a first engagement element (10, 10D) and a second engagement element (11, 11D). When a tab (12) is pulled upwardly to open the cover (2), the distal end of the second engagement element (11, 11D) engages with the first engagement element (10, 10D) so that the cover (2) is maintained in an opened position. When the cover (2) is closed, an engaging projection (8a) is brought into engagement with the inner surface of the main body (3), whereby the cover (2) is maintained in the closed position. One of a pair of engagement elements can be replaced by an engaging recess (10E, 11F, 11G).
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