| 摘要 |
PURPOSE: An anti-slip plate is provided so that it piled-ups through the projection due to the inside of the antiskid plate with inflow. The foreign material piled-up is floated with the wind is prevented. CONSTITUTION: An antiskid plate(1) comprises a projection(5) for guaranteeing the slip prevention function. It cuts one part of material and projection is shaped. It is projected so that the height of a projection from a surface of material exceeds the total thickness of material. It is formed as one of the circular, polygon, a star, a heart, a toothed gear shape.
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