| 摘要 |
PURPOSE:To realize a ceiling height and a form of a ceiling surface corresponding to the conditions of use of a building by winding and drawing out wires hanging and bearing ceiling constituent materials on an upper skeleton at a plurality of points and wires collectively by a plurality of wires. CONSTITUTION:A disc-like ceiling constituent material C64 is hung and borne on the central position of a roof 3 through wires 65 passing through a skeleton 31. A plurality of circular ceiling constituent materials R64 are hung and borne on the peripheral surface of the disc-like ceiling constituent material C64 concentrically through the wires 65 in the same way. In accordance with the purpose of use such as various kinds of sports, concerts, conferences, etc., the ceiling constituent materials C64 and R64 are raised and lowered. At that time, by winding and drawing out the wires 65 by winders 72 collectively by a plurality of wires, the number of winders 72 is reduced to a half in comparison with in the case wires are separately wound. In addition, an amount of lighting of an outdoor light is adjusted by adjusting a width of a gap between the ends of adjacent ceiling constituent materials C64 and R64. |
