| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a plastic cap having a spout tube, which can pour a content liquid smoothly with a constant liquid width even in case the degree of inclination of a container at the time of pouring the content liquid is more or less changed and which can adjust the liquid quantity easily. <P>SOLUTION: A bill portion 20 protruding obliquely outward is formed at the upper end portion of a spout tube 11 formed at a top plate portion 5 of a cap body 1. The lower end portion of the inner face of the spout tube 11 is a generally cylindrical seal face 17. A groove 30 extending from the upper end portion of the seal face 17 to the upper end of the bill portion 20 is formed in the inner face of the bill portion 20 of the spout tube 11. A seal ring 29 coming into close contact with the seal face 17 of the inner face of the spout tube 11 when the upper cover 2 is closed is formed on the inner face of an upper cover 2. <P>COPYRIGHT: (C)2009,JPO&INPIT |
