| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that thin lids molded of a resin sheet are shipped under a piled condition and taken out of the pile one by one when the lid is put on a main body, but the lids under a piled condition are obliquely easily collapsed. SOLUTION: A second horizontal part 10 is provided on the lower side of a hooking part 9 necessary for fitting the lid into a main body. In addition, a third vertical face 11 extending downward from the lower end of the hooking part 9 is provided. Accordingly, when the lids are piled up mutually, the second horizontal part 10 of the hooking part 9 receives a force to the force in the vertical direction, and the third vertical face 11 receives a force to the force in the lateral direction. COPYRIGHT: (C)2006,JPO&NCIPI
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