| 摘要 |
PROBLEM TO BE SOLVED: To provide a snow fence which is high in strength of an airfoil air-course deflection plate, good in assembling efficiency, and high in handling safety. SOLUTION: The snow fence consists of the airfoil air-course deflection plates and supports supporting the deflection plates at vertical intervals. Each deflection plate is formed of upper and lower panel members, a front edge member, an intermediate member, and a rear edge member. The front and rear edge members each have an upper panel insertion portion in an upper surface and a lower panel insertion portion in a lower surface, for forming the upper and lower panel members into an airfoil by curving and fixing the upper and lower panel members by means of the front edge member, the intermediate member, and the rear edge member. The upper panel member has both ends thereof inserted into the upper panel insertion portions formed in the front and rear edge members, respectively, and fixed to the upper surfaces of the front edge member, the intermediate member, and the rear edge member. The lower panel member has both ends thereof inserted into the lower panel insertion portions formed in the front and rear edge members, respectively, and fixed to the lower surfaces of the front edge member, the intermediate member, and the rear edge member. The front edge members and/or the rear edge members of the respective airfoil air-course deflection plates may be connected together by means of connection members. COPYRIGHT: (C)2005,JPO&NCIPI
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