| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a plant protection material capable of reducing counter pressure from protrusions even when not made of elastomer, but of the same material as a lower plant protection material.SOLUTION: A plant protection material has an upper and lower two-layer structure for protecting plants from tread pressure by people and vehicles. A lower plant protection material includes lower tread pressure parts and lower hole-penetrating parts; the lower tread pressure parts are composed of a plurality of protrusions connected together at a certain interval; the lower hole-penetrating parts are spaces surrounded by the protrusions; and connection hole parts for connecting the protrusions to an upper plant protection material are provided on the tops of the protrusions comprising the lower tread pressure parts. The upper plant protection material includes upper tread pressure parts and upper hole-penetrating parts; the upper tread pressure parts are composed of face-down dish-shaped parts covering and connecting to the protrusions which comprise the lower tread pressure parts; the upper hole-penetrating parts are spaces surrounded by the face-down dish-shaped parts; and claw parts are disposed at the lower portions of the face-down dish-shaped parts. This way, the plant protection material has the upper and lower two-layer structure where the claw parts are connected to the connection hole parts provided on the tops of the protrusions.</p> |
