| 摘要 |
PROBLEM TO BE SOLVED: To provide a guiding block capable of melting snow on an upper surface of the guiding block without using a large-scale device such as a snowplow, and without manually performing snow removing work, and of clearly identifying a projection group on the block upper surface being an information source. SOLUTION: This guiding block 1 is composed of a plate-like member 2 laid on a walk, and the guiding projection group arranged on a plate-like material upper surface. Electric heating elements 4 are installed on the plate-like member to melt the snow on the upper surface. |
