| 摘要 |
PROBLEM TO BE SOLVED: To prevent the blown-up of a roof snow sliding-down device due to the strong wind in non-snowy season by covering a roof snow sliding-down device at a ridge part with a net-like sheet arranged a rope having high strength in the periphery thereof, and fixing the roof snow sliding-down device to the roof through this rope. SOLUTION: Plural roof snow sliding-down devices (a)-(l) are fitted to the roof while utilizing snow stoppers a1-a3, b1-b3 on the roof. A rope 2 having high strength is arranged in the periphery of a net-like sheet 1 so as to form a presser tool for the roof snow sliding-down devices (a)-(l). The presser tools are designed so as to have shape and dimension capable of being commonly used for plural devices (a)-(l). At least one part of the roof snow sliding-down devices (a)-(l) close to a ridge easy to receiver the wind is covered with the net-like presser tool. With this structure, blown-up of the devices in non-snowy season can be prevented. Furthermore, installation of the devices through a year is possible, and the labor for dismantling and re-installation can be saved.
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