| 摘要 |
PROBLEM TO BE SOLVED: To provide a pump unit which can change the discharge ports optionally at use and prevent a liquid from flowing out at non-use and is prevented from deterioration of operation-ability attributed to the compaction of bellows or the like for a long duration and to provide a container. SOLUTION: The pump unit 10 is for pumping up a liquid in a container main body 12 to the outside and is provided with a liquid storage part and a piston part inserted into the liquid storage part in a movable manner. The container has a piston part installed in the storage part, a shaft case 20 having a female screw part 20a in the inner circumferential face, and piston head parts (21, 22) which are installed in such a manner that they are projected out of the liquid storage part so as to form a discharge port 22c and which are provided with a male screw part 21a to be joined to the female screw part 20a by screwing in the outer circumferential face and inserted into the shaft case 20. A non-screw part 20b is formed in the shaft case 20 so as to freely turn the male screw part 21a of the piston head part in the circumferential direction of the shaft case 20. COPYRIGHT: (C)2004,JPO
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