| 摘要 |
PROBLEM TO BE SOLVED: To retain a shape of a sun shade sheet as it is in a windless or breeze case, and to make the sheet release wind when the sheet receives a wind pressure equal to or higher than a certain degree.SOLUTION: A sun shade device includes: a supporting stay 30 which is attached along a diagonal direction of a sun shade sheet 20 so as to support the sheet, and which has both ends anchored to anchor parts 14, 15 of a building; a corner angle movable apex of the sun shade sheet 20, which is positioned on an extension of a side extending from the end of the supporting stay 30; and an expansion stay 40 in which a shock chord 43 is interposed in a part thereof via pulleys 24, 25 fixed to the building, and of which end is fixed to the corner angle movable apex. When a wind pressure acts on the sun shade sheet 20, the corner angle movable apex of the sun shade sheet 20 can move so as to balance with the wind pressure by expansion of the expansion stay 40 to release the wind. |
