| 摘要 |
PROBLEM TO BE SOLVED: To provide a waterproof sheet as an underlay for a portable toilet for preventing slipping and tripping over when a disabled person or the like steps on it. SOLUTION: Many elastic projections 4 are provided on the surface of a body 3 of the waterproof sheet 2 so as to prevent slipping of the feet when a person steps on it. Layers 5, 7 and 17 are provided for both water shielding and slip prevention on the back of the body 3 so as to prevent the waterproof sheet 2 from moving over the floor. COPYRIGHT: (C)2007,JPO&INPIT
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