| 摘要 |
PROBLEM TO BE SOLVED: To inexpensively manufacture a shape retaining tool for retaining a swelling of a mask body, and reduce an obstacle for making it disposable, thereby making it hygienically effective, and thin and compact. SOLUTION: Both ends of a bendable supporting frame member can be fixed to the inside of a mask body by a fixing means. Therefore, the supporting frame member bent before the face of a user supports the mask body from the inside and retains a swelling. The shape retaining tool does not require an expensive solid domical shape retaining tool and can be realized by using plane members. Therefore, it can be made inexpensive. Making it disposable will not pose any economic inconvenience and proves hygienically effective. The tool can be flattened in any cases other than when a user uses the tool. Therefor, it can be easily made thin and compact. |
