| 摘要 |
PROBLEM TO BE SOLVED: To achieve an excellent airtightness of a cosmetic case and smooth opening/closing and free stopping of its lid with overall even pressing force of the lid on a packing material by positively giving flexibility in the direction of slanting to the pivotally attaching part of the lid to the case body of the air-tight cosmetic case. SOLUTION: The pivotally attaching part 30 of a lid 20 to a case body 10 of this airtight cosmetic case consists of a hinge pin 31 and a hinge hole 32. The space in the radial direction between the hinge pin 31 and the hinge hole 32 becomes larger toward both ends of the pivotally attaching part 30 from a support part 34 nearly in the middle of the attaching part 30, so that the hinge pin 31 and the hinge hole 32 oscillate relatively aslant with the support part 34 as the center of oscillation. and the lid 20 is made to rotate and stop with an arbitrary opening angle to the case body 10 at the support part 34.
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