| 摘要 |
PROBLEM TO BE SOLVED: To enable easy detachment, by forming a cap such that the length of a skirt extending downward from the periphery of the top wall of an upper cap covers in its axial direction the peripheral face of the outside mounting wall of a main body, thereby forcibly moving the lower end of the outside mounting wall in the axial direction where it is separated from a container opening. SOLUTION: An upper cap 6 is provided with a top wall 40 extending horizontally, and from its periphery a skirt 42 is formed downward. Here, the length of the skirt 42 in its axial direction is set so as to cover the peripheral face of the outside mounting wall 20 of a main body 4. When the cap 2 is separately recovered, the upper cap 6 is rotated in relation to the main body 4, thereby unlocking the main body 4 from a locking screw 24. Consequently the skirt 42 is put out of the position where it covers the peripheral face of the outside mounting wall 20. Then, the flange 30 of the outside mounting wall 20 is forcibly moved with fingertips in the axial direction where it is separated from a container opening 52, thus an easy removal of the cap is made possible. |
