| 摘要 |
PROBLEM TO BE SOLVED: To secure the sealability of a container and to improve the operability of a rotary cap.SOLUTION: A fixed cap 2 having a fixed hole 2b is fixed in an upper opening 1a of a paper tube 1. A rotary cap 3 having a rotary hole 3b is fit freely rotatably to the upper part of the fixed cap 2. A projection part 5 is arranged in a sidewall part of the fixed cap 2 and a double wall part 6 is arranged in a sidewall part of the rotary cap 3. The projection part 5 is fit in the space between the walls of the double wall part 6, so that the rotary cap 3 is contacted closely with the fixed cap 2. Since a user grasps the sidewall part 3c of the rotary cap 3 and rotates the rotary cap 3, the rotary cap 3 can be rotated smoothly without exerting pressing force on the rotary cap 3 from above. |
