| 摘要 |
PROBLEM TO BE SOLVED: To obtain a container with a treaded part, which can be stacked well in the vacant condition, by forming a stretched-down part (under part) bent toward the external surface of the body from the opening of the container so as to have a thread, in the cup-shaped container formed in a sheet forming method. SOLUTION: In a plastic cup-shaped container formed in a sheet forming method, the stretched-down part 6 bent from the opening of the container body 5 to the external surface of the body and extended down, in formed to have a thread. And also a cover 1 is formed in a sheet forming method and the side wall 2 thereof is formed to have a threaded part screwed on the thread of the container body 5. A seal member 4 and a packing member 3 are interposed between the opening of the container body and the cover 1 to increase the hermetical tightness. Since there is no threaded part at the opening of the container, although the thread is fomred in the container body 5, when a tapered side wall 7 is fomred, vacant containers can be stacked and hence, transportation and keeping thereof are facilitated. |
