| 摘要 |
PROBLEM TO BE SOLVED: To provide a sandbag increased in strength. SOLUTION: In this sandbag 10, a first extension part 5C and a second extension part 5'D extend through the center O of the bottom surface 1b of a bag body 1 on the bottom surface 1b of the bag body 1. The second extension part 5' is placed on the first extension part 5C, and the first extension part 5C is placed on the second extension part 5'D. The first extension part 5C and the second extension part 5'D placed on each other are connected to each other. In the same manner, the second extension part 5D and the first extension part 5"C are connected to each other, and the first extension part 5'C and the second extension part 5"D are connected to each other on the bottom surface 1b of the bag body 1. COPYRIGHT: (C)2008,JPO&INPIT
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