| 摘要 |
PROBLEM TO BE SOLVED: To provide a weed-proof component capable of executing a weed-proof structure, in particular, capable of constructing easily the weed-proof structure onto a slope face. SOLUTION: A weed-proof sheet has the at least one first end part connected to a columnar block, the first end part has a substantially linear side, the length of the columnar block is shorter than the length of the side of the first end part, the weed-proof sheet has further the prescribed second end part and the prescribed third end part, a surface of the weed-proof sheet excepting the third end part has an inorganic particle, a boundary between a surface having the inorganic particle and a surface having no inorganic particle forms the third end part boundary, in this weed-proof component. The weed-proof component is constituted to make a distance between one point in the side of the second end part, and one point in the side of the third end part on a straight line passing the one point in the side of the second end part and parallel to the side of the first end part, equal to a length of the side of the first end part, and to make a distance between the one point in the side of the second end part, and one point of the third end part boundary on the straight line passing the one point in the side of the second end part and parallel to the side of the first end part, equal to the length of the columnar block. COPYRIGHT: (C)2010,JPO&INPIT
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