| 摘要 |
PROBLEM TO BE SOLVED: To provide a means which enables skiing even on lawn when only a small amount of snow is accumulated on a skiing ground. SOLUTION: In a skiing ground member in which a protrusion and a permeable portion are provided on a flat plate, the protrusion is opened on the flat plate; the other end of the protrusion is closed; and the permeable portion is a through-hole which is provided in the flat plate. In the skiing ground, the skiing ground member is provided in a tensioned state. The snow is held between the protrusions. In summer, the grass grows via the through-hole which is provided between the protrusions, so as to enable grass skiing. COPYRIGHT: (C)2008,JPO&INPIT
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