| 摘要 |
PROBLEM TO BE SOLVED: To efficiently remove ice and snow clinging to the horizontal members of a road guide sign. SOLUTION: In this snow accretion preventive structure in which a roof member is installed over the road guide sign 1 via cover the road guide sign 1, the roof member comprising a frame 21 with a film 22 stretched thereon is swingably supported by the post 11 via a mounting fulcrum 30 in such a manner that its oscillating angle is regulated by an oscillating angle regulating member 40 provided between the roof member and the post 11. |
