JPH0571311U - Curtain wall waist dew condensation prevention structure - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a dew condensation preventing structure for a waist portion of a curtain wall, which is intended to prevent dew condensation on the window portion due to cooling of the waist portion of the curtain wall. [Structure] Curtain wall waist (spandrel)
In the seamless portion 7 of No. 4, the vicinity of the glass groove bottom portion of the web portion 8 from the outdoor side to the indoor side has the cold heat conduction blocking structure 11,
The exposed portion between the outer glass 6 and the refractory board 5 is covered with a heat insulating protective material 12, and its end 13 is in contact with the refractory board 5. [Effect] The cold heat conduction blocking structure provided near the bottom of the glass groove of the web part from the outdoor side to the indoor side without exposing the waist of the curtain wall, and exposed between the blind glass and the fireproof board. The simple means of covering a part with a heat insulating protective material and contacting the end with the fireproof board effectively prevents the dew condensation on the window due to the uncooled lumber by the single glass on the waist. Can be prevented.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dew condensation prevention structure for a waist portion of a curtain wall, which is intended to prevent dew condensation on the window portion due to cooling of the waist portion of the curtain wall.

[0002]

[Prior Art]

 As shown in FIGS. 3 and 4, the structure of the waist portion of the conventional curtain wall and the window portion connected to the waist portion is such that the window portion 21 is a double glass of the outside glass 22 and the inside glass 23. The spandrel portion 24 is usually fitted with only one glass of the outer glass 26 in the front portion because the refractory board 25 is inserted in the back portion thereof. Therefore, especially in the cold season, the space 27 between the outer glass 26 of the waist and the refractory board 25 is cooled to a temperature close to the outside temperature, whereas the interior space inside the refractory board 25 is warm. The temperature difference becomes large with the outer surface of the refractory board 25 as a boundary, and as a result, the upper part of the window portion is cooled because the thermal conductivity is high and dew condensation water is inevitably generated there.

[0003]

[Problems to be solved by the device]

 The present invention intends to obtain a dew condensation preventing structure for the lower part of the curtain wall, which can effectively prevent the occurrence of the dew condensation on the window due to the cooling of the lower part of the curtain wall as described above by a simple means. Is.

[0004]

[Means for Solving the Problems]

 The present invention has been made in view of the above point of view, and the waist of the curtain wall (spandrel) is seamless, and the vicinity of the glass groove bottom of the web portion from the outdoor side to the indoor side has a cold heat conduction blocking structure. In order to provide a structure for preventing dew condensation on the waist of a curtain wall in which the exposed portion between the blind outer glass and the refractory board is covered with a heat insulating protective material, and the end portion is in contact with the refractory board. .

[0005]

[Action and Example]

 Hereinafter, a structure of one embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the window portion 1 of the curtain wall is made of double glass including an outer glass 2 and an inner glass 3. A waist portion (spandrel portion) 4 of the curtain wall is fitted with a fire resistant board 5 on its back portion, and an outer glass 6 is fitted on the front side thereof.

The blind portion 7 of the waist portion 4 of the curtain wall is cut near the bottom of the glass groove of the web portion 8 extending from the outdoor side to the indoor side, and the heat insulating resin 10 is integrally interposed in the cut portion 9 to provide heat insulation. The resulting structure is a cold heat conduction blocking structure 11 that blocks cold heat conduction from the outside, and the exposed portion between the outer glass 6 and the refractory board 5 of the seamless 7 is covered with a heat insulating protective material 12, and its end is covered. The part 13 is in contact with the refractory board 5.

By doing so, even in the cold season, even if the space 14 between the outer glass 6 of the waist 4 and the refractory board 5 is cooled to a temperature close to the outside temperature, the heat conductivity is high and the temperature is high. 7, the heat insulating and protective material 12 that covers the seamless eye 7 and reaches the fireproof board 5 behind acts as a heat conduction relaxation material for the seamless eye 7, and the web portion 8 that extends from the outdoor side to the indoor side. In combination with the blockage of cold heat conduction from the outside by the cold heat conduction blocking structure 11 near the bottom of the glass groove, the occurrence of dew condensation can be prevented or significantly reduced.

[0008]

[Effect of the device]

 As is clear from the above description, the present invention has a cold heat conduction blocking structure provided without a waist (spandrel) of a curtain wall and near the bottom of the glass groove of the web portion from the outdoor side to the indoor side. And the exposed part of the glass between the blind glass and the refractory board is covered with a heat-insulating protective material, and the end portion is simply brought into contact with the refractory board. It is possible to effectively prevent or reduce the generation of dew condensation on the window due to the cooling without eyes.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a structure of a part of a waist portion of a curtain wall according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the structure of the other part of the waist of the curtain wall according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a structural example of a part of a waist of a conventional curtain wall.

FIG. 4 is a cross-sectional view showing a structural example of another portion of the waist of a conventional curtain wall.

[Explanation of symbols]

 1 Window Part 2 Outside Glass 3 Inner Glass 4 Waist Part (Spandrel Part) 5 Fireproof Board 6 Outer Glass 7 No Specimen 8 Web Part from Outdoor Side to Indoor Side 9 Cut Part 10 Thermal Insulation Resin 11 Cold Heat Conduction Blocking Structure 12 Insulation Protection Material 13 Ends of insulation protection material 14 Space between outer glass and fireproof board

Claims (1)

[Scope of utility model registration request] 1. A blind portion 7 of a waist portion (spandrel portion) 4 of a curtain wall has a cold / heat conduction blocking structure 11 near the bottom of a glass groove of a web portion 8 extending from the outdoor side to the indoor side. A structure for preventing dew condensation on a waist portion of a curtain wall, characterized in that an exposed portion between the fireproof board 5 and the fireproof board 5 is covered with a heat insulating protective material 12, and an end portion 13 thereof is in contact with the fireproof board 5.