| 摘要 |
PURPOSE:To improve the heat collecting efficiency of a solar heat collector throughout a year by a method wherein the upper end of the solar heat collector is ascended or descended by only rotating a screwed rod to change the angle of heat collecting surface of the solar heat collector. CONSTITUTION:A female screw body 3 is provided vertically in the ridge 2 of a roof 1, the screwed rod 4 is screwed elevatably into the female screw body, the upper end of the solar heat collector 5 is connected to the rod 4 so that the upper end of the collector 5 is approached to or separated from the surface of the roof by elevating or descending the rod 4 and the lower end of the collector 5 is placed on the roof 1 movable along the slope of the roof 1. According to this method, the upper end of the collector 5 may be elevated or descended by only rotating the rod 4 to elevate or descend it and whereby the angle of heat collecting surface of the collector 5 may be changed. Accordingly, the angle of heat collecting surface of the collector may be regulated simply in accordance with the altitude of the sun in a season so as to become vertical to the direction of solar beams and whereby a prominent heat collecting efficiency may be obtained throughout a year. |
