| 摘要 |
PURPOSE:To enable heating of the room in the nighttime utilizing solar heat by accumulating solar heat in a heat accumulating material layer of a strip-shaped sheet and turning the strip- shaped sheet in the nighttime so that the above heat accumulating material layer in which the solar heat is accumulated is placed at the inner side. CONSTITUTION:Support shafts 4 are provided respectively in an upper frame part 2 and a lower frame part 3 which are located in opposite to each other on the inner side of the window, and an endless ring-shaped strip-shaped sheet 5 is stretched rotatably between both support shafts 4. The front surface of the strip-shaped sheet 5 is formed by the heat accumulating material layer 6 and the back surface thereof by a heat insulating material layer 7. The heat accumulating material layer 6 is formed by interposing a polyethylene resin fiber sheet 9 between vinyl chloride resin sheets 8, fusing the peripheral edges of these sheets into an integral body, and impregnating paraffin wax into the polyethylene resin fiber sheet 9. Accordingly, solar heat is accumulated in the daytime in the heat accumulating layer 6 of the strip- shaped sheet 5 located on the outer side, and in the nighttime, the strip-shaped sheet 5 is turned so that the heat accumulating material layer in whcih solar heat is accumulated, comes to the inner side. Then, the solar heat accumulated in the heat accumulating material layer 6 can be radiated within the room,and the interior of the room can be positively warmed. |
