| 摘要 |
<p>PROBLEM TO BE SOLVED: To securely prevent a cover inserted into a container from slipping off unintentionally from the container. SOLUTION: An engaging piece 19 is provided in contact with a bottom face plate 14 of the container 10, while a notch section 24 is formed on the bottom face plate 24 of a cover 20 corresponding to the bottom face plate 14 on which the engaging piece 9 is provided. Protrusions 241 protruded outwardly more than the vertical dimension of the bottom face plate 24 are formed continuously to the left and right end edge corners on the left and right end edges of the notch section 24x so as to elastically deform the vicinity, in the state of being inclined inwardly, to the left and right end edges of the notch section 24x. Thus when the cover 20 is inserted into the container 10, the engaging piece 19 is positioned in the notch section 24x to move slidably the cover 24 in the range of the notch section 24x until the left and right end edges of the notch section 24x are engaged with the left and right end edges of the engaging piece 19.</p> |
