| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a spouting plug spouting a content in a favorable range by controlling an increase in the internal pressure of a container. <P>SOLUTION: The spouting plug comprises: a spouting cylindrical body 2 which is fixed to and held by a container mouth part 20a to allow the liquid content to flow out through a fore end open hole 2b; and a valve element 5 which is supported by the inner side of the spouting cylindrical body 2 via an elastic member 4, and abutted on an inner seat face F<SB>12</SB>of the spouting cylindrical body 2 to maintain the fore end open hole 2b in a sealed state. The valve element 5 has a push-in projection 5b which passes through the fore end open hole 2b in the spouting cylindrical body and is exposed to the outside, and opens the fore end open hole 2b by separating the valve element 5 from the seat face F<SB>12</SB>of the spouting cylindrical body by pushing in the exposed part. An internal passage 5d to be communicated with the outside through a fore end open hole A of the projection 5b is formed in the valve element 5. A member 6 for forming an internal space R between the valve element 5 and itself is provided on a lower side of the valve element 5. A first small hole 7 for communicating the container mouth part 20a with the internal space R is formed in the member 6. A second small hole 8 for communicating the internal space R with the outside through the passage 5d is formed in the valve element 5, and in addition, a ball valve B is arranged in the internal space R. <P>COPYRIGHT: (C)2010,JPO&INPIT |
