| 摘要 |
<P>PROBLEM TO BE SOLVED: To further improve the sealing of an inner circumferential surface of a container equipped with pump, which has a slide bottom lid having an outer annular circumferential surface in contact with the inner circumferential surface around the slide bottom lid body. <P>SOLUTION: The outer annular circumferential surface 46 has an upper outer circumferential surface 47 and a lower outer circumferential surface 48, which are formed upward and downward on the circumference of the slide bottom lid body 41, respectively. The upper outer circumferential surface 47 has an end 47a which has a sloped surface that makes the end in a tapered form with inner diameter in the container larger as the slope goes upward, and has an annular projection 49 formed close to the base end than the end ridge of the end with sloped surface and pressed to be in contact with the inner circumferential surface 19 of the container. In the upper outer circumferential surface 47, the portion of the outer circumferential surface close to the base end than the projection 49 has a sloped surface that makes the portion of the outer circumferential surface thinner to reduce the outer diameter in the container as it becomes close to the base end. The end of the lower outer circumferential surface 48 also has an annular projection 49a pressed to be in contact with the inner circumferential surface of the container. <P>COPYRIGHT: (C)2003,JPO |
