| 摘要 |
PURPOSE:To make it possible to set optionally the thermal insulating capacity of a transparent section by laminating a plurality of transparent film frame bodies to form closed spaces as insulating layers, and filling foamable urethane thermal insulating materials into parts other than the closed spaces. CONSTITUTION:A plurality of transparent film frame bodies 14... that the peripheral surface of transparent film 12 is borne on internal frame 13 and 13 are laminated, they are held between an external plate 15 and a window board 18, and closed spaces are formed as a plurality of thermal insulating layers. After that, excepting the closed spaces, foamable urethane thermal insulating materials 10 are filled among the peripheral surfaces of the external plate 15, internal plate 8 having a notched hole 7, facing frame 9 and internal frame 8. The thickness of the closed space is properly adjusted to set optionally the thermal insulating capacity of a transparent section. |
