JP2006328905A - Curtain wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a curtain wall capable of sufficiently lowering the indoor temperature, when the outdoor temperature is high and solar radiation exists in summer. <P>SOLUTION: A space is formed by installing an outdoor side panel 12 and an indoor side panel 13 in a frame body 11. A blind 14 is arranged near the outdoor side panel 12 in this space. An intermediate air layer 15 is formed between this blind 14 and the indoor side panel 13. This intermediate air layer 15 is formed as a curtain wall unit 10 for flowing outside air by opening outdoors by a lower ventilating opening 16 and an upper ventilating opening 17. This frame body 11 is formed as the curtain wall by being installed between vertically adjacent floor slabs, and the temperature of the intermediate air layer 15 is prevented from becoming high by cutting off the solar radiation by the blind 14, to thereby sufficiently lower the indoor temperature when the outdoor temperature is high and the solar radiation exists. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a curtain wall.

Patent Document 1 discloses a curtain wall called a double skin curtain wall.
The above-mentioned curtain wall has an outer skin attached to the building frame as an outer skin, an indoor panel is attached to the building frame as an inner skin, and a space is formed between the outer skin and the inner skin, A blind is provided near the inner skin in the space so that outside air flows through an intermediate air layer between the blind and the outer skin.
On the other hand, in summer, it is possible to prevent the indoor temperature from rising by blocking the solar radiation (sunlight) with the blind so as not to irradiate the room indoors and the outside air circulating in the intermediate air layer.

JP 2001-253734 A

In the conventional curtain wall described above, the blind is provided closer to the inner skin, and an intermediate air layer is formed between the blind and the outer skin. Cannot be prevented.
For this reason, the temperature of the intermediate air layer is high due to solar radiation, and the effect of preventing the increase in the indoor temperature due to the circulation of outside air to the intermediate air layer is not sufficient, the outdoor temperature is high in summer and the indoor temperature when there is solar radiation Can not be too low.

  An object of the present invention is to provide a curtain wall in which the outdoor temperature is high in summer or the like and the indoor temperature can be sufficiently lowered when there is solar radiation.

The present invention has a space between an indoor side panel and an outdoor side panel attached to the frame, and a blind is provided near the outdoor side panel in the space, and between the blind and the indoor side panel. A curtain in which an intermediate air layer is formed, the lower part of the intermediate air layer communicates with the outside through the lower ventilation port, and the upper part of the intermediate air layer communicates with the outside through the upper ventilation port. As a wall unit,
This curtain wall unit is a curtain wall characterized in that a frame body of the curtain wall unit is attached across floor slabs adjacent to the top and bottom of a building frame.

In the present invention, the lower ventilation opening has an upper opening and a lower opening, and the upper opening is formed closer to the interior of the room than the blind and opens below the intermediate air layer, and the lower opening is below the blind. Formed to open to the outside,
The upper ventilation opening has a lower opening and an upper opening, and the lower opening is formed closer to the interior of the room than the blind and opens above the intermediate air layer, and the upper opening is formed above the blind and opens to the outside of the room. Open and
The upper opening of the lower ventilation port and the lower opening of the upper ventilation port are opposed to each other in the vertical direction so that outside air can flow in a straight line in the intermediate air layer so as not to interfere with the blind.

  In this way, since the outside air smoothly circulates in the intermediate air layer, the outdoor temperature is high, and the indoor temperature can be lowered sufficiently when there is solar radiation.

In the present invention, the width of the lower ventilation port, the upper ventilation port is substantially equal to the width of the curtain wall unit,
The upper ventilation port may be configured to discharge the air in the intermediate air layer obliquely downward.

In this way, the width of the upper and lower ventilation ports is approximately equal to the width of the curtain wall unit, so even if the expected size of the intermediate air layer is small, a large amount of air flows through the intermediate air layer. It can satisfy the function as a skin curtain wall. Therefore, since the expected width of the frame body of the curtain wall unit can be reduced, each frame material of the frame body can be formed as an integral aluminum extruded shape.
In addition, since the air in the intermediate air layer is discharged obliquely downward from the upper ventilation port, the air discharged from the upper ventilation port is difficult to flow into the intermediate air layer from the lower ventilation port of the upper curtain wall.
Therefore, high-temperature air heated in the intermediate air layer in summer is difficult to be introduced into the intermediate air layer of the upper curtain wall unit, and an increase in room temperature can be prevented.

In the present invention, a louver provided with a plurality of louver blades is attached to the outdoor portion of the lower ventilation port and the outdoor portion of the upper ventilation port, respectively.
The vertical dimension of the louver blade of each louver is the same as the vertical dimension of the slat of the blind, the distance between the upper and lower louver blades is the same as the distance between the upper and lower slats, and the outdoor side of each louver blade and each slat The end portion can be in the same position in the indoor / outdoor direction.

If it does in this way, the flow of outside air can be made smooth by a louver.
In addition, each slat of the blind and the louver blade of each louver can have an external appearance that is continuous in the vertical direction.

According to the present invention, it is possible to block the solar radiation with the blind so that the temperature of the intermediate air layer does not increase due to the solar radiation. Therefore, the outdoor temperature is high in summer and the indoor temperature can be sufficiently lowered when there is solar radiation.
In addition, a curtain wall unit having an intermediate air layer is assembled by attaching an outdoor panel, an indoor panel, and a blind to a frame at a factory, etc., and the frame is mounted by mounting it between floor slabs of a building frame. it can.
Therefore, the indoor side panel and the outdoor side panel can be easily attached to the building frame.

As shown in FIGS. 1, 2, and 3, a curtain wall is configured by attaching a plurality of curtain wall units 10 to a building housing 1 sequentially in the vertical and horizontal directions.
In the curtain wall unit 10, an outdoor panel 12 (outer skin) and an indoor panel 13 (inner skin) are attached to a frame 11, and a space is provided between the outdoor panel 12 and the indoor panel 13. Have
A blind 14 is provided near the outdoor panel 12 in the space, and an intermediate air layer 15 is formed between the blind 14 and the indoor panel 13.
The curtain wall unit 10 has a lower ventilation port 16 at the bottom and an upper ventilation port 17 at the top.
The lower ventilation port 16 communicates the lower part of the intermediate air layer 15 to the outside of the room, and the upper ventilation port 17 communicates the upper part of the intermediate air layer 15 to the outside of the room.
The outdoor panel 12 is a wall that keeps sound insulation and windproof performance, the indoor panel 13 is a wall that keeps performance such as heat insulation, water tightness, air tightness, fire resistance, etc. Outside air circulates. This constitutes a double skin type curtain wall.

Thereby, the intermediate air layer 15 has a role as a heat insulating layer, and can prevent the indoor temperature from being lowered by the outside air in winter.
Further, when the outdoor temperature is high in summer and the like, and there is solar radiation, the sunlight is blocked by the blind 14 and the temperature of the intermediate air layer 15 does not increase due to the solar radiation. Therefore, the outdoor air is circulated through the intermediate air layer 15. The effect of preventing temperature rise is sufficient, and the room temperature can be sufficiently lowered.

Next, although the structure of each part is demonstrated, it is not restricted to the structure.
As shown in FIG. 2, the lower ventilation port 16 has an upper opening 16a and a lower opening 16b. The upper opening 16a is formed closer to the room than the blind 14 and opens below the intermediate air layer 15, and the lower opening 16b is formed below the blind 14 and opens outside the room.
The upper ventilation port 17 has a lower opening 17a and an upper opening 17b. The lower opening 17a is formed closer to the room than the blind 14 and opens above the intermediate air layer 15, and the upper opening 17b is formed above the blind 14 and opens outside the room.
The upper opening 16a of the lower ventilation port 16 and the lower opening 17a of the upper ventilation port 17 are opposed to each other in the vertical direction so that outside air circulates linearly in the intermediate air layer 15 and does not interfere with the blind 14. is there.

  As a result, the outside air smoothly circulates in the intermediate air layer 15, so that the outdoor temperature is high and the indoor temperature can be sufficiently lowered when there is solar radiation.

The curtain wall unit 10 includes a vision unit 10a and a spandrel unit 10b, and is mounted between the upper and lower floor slabs 2 of the building frame 1.
For example, the upper portion of the frame body 11 is attached to the upper floor slab 2 by a fastener 3 and attached, the lower portion of the frame body 11 is opposed to the outdoor side of the lower floor slab 2, and the upper curtain wall is attached. The lower part of the frame 11 of the unit 10 and the upper part of the frame 11 of the lower curtain wall unit 10 are connected so as not to move in the indoor exterior direction.
In this manner, the outdoor panel 12 and the indoor panel 13 are attached to the frame 11 at a factory or the like, and the curtain wall unit 10 having the intermediate air layer 15 is assembled by attaching the blind 14 to the curtain wall unit. 10 can be carried to a construction site, and the frame 11 can be attached to the floor slab 2 by a fastener 3.
Therefore, the indoor side panel 12 and the outdoor side panel 13 can be easily attached to the building housing 1.

The lower ventilation port 16 is formed over substantially the entire length of the curtain wall unit 10 in the width direction (left-right direction in FIG. 1), and a large amount of air smoothly flows through the lower ventilation port 16.
The upper ventilation port 17 is formed over almost the entire length of the curtain wall unit 10 in the width direction (left and right direction in FIG. 1), and a large amount of air smoothly flows through the upper ventilation port 17.
Therefore, even if the size of the intermediate air layer 15 in the indoor outside direction (expected size) is small, a large amount of air circulates in the intermediate air layer 15 and satisfies the function as the double skin curtain wall described above. Can do.
Therefore, the expected width of the frame body 11 of the curtain wall unit 10 can be reduced to, for example, 400 mm or less, and each frame material constituting the frame body 11 can be formed as an integral aluminum extruded shape.

In the case described above, the upper ventilation port 17 preferably has a shape that discharges the air in the intermediate air layer 15 obliquely downward.
That is, if the width of the lower ventilation port 16 and the upper ventilation port 17 is substantially equal to the width of the curtain wall unit 10 as described above, the upper ventilation port 17 of the lower curtain wall unit 10 in the curtain wall unit 10 adjacent to the upper and lower sides. Since the lower ventilation port 16 of the upper curtain wall unit 10 is located above, the air exhausted from the upper ventilation port 17 of the lower curtain wall unit 10 is intermediate from the lower ventilation port 16 of the upper curtain wall unit 10. Since it is easy to be introduced into the air layer 15 and high temperature air heated in the intermediate air layer 15 of the lower curtain wall unit 10 is introduced into the intermediate air layer 15 of the upper curtain wall unit 10 in summer, It may not be possible to prevent a rise in room temperature.

  In order to prevent this, the air in the intermediate air layer 15 is discharged obliquely downward from the upper ventilation port 17, and the discharged air is discharged from the lower ventilation port 16 of the upper curtain wall unit 10 into the intermediate air layer 15. It was hard to be introduced.

Next, the specific shape of each member will be described.
As shown in FIG. 1, the frame 11 is rectangular with an upper horizontal frame member 11a, a lower horizontal frame member 11b, and left and right vertical frame members 11c, and as shown in FIG. 2, between the left and right vertical frame members 11c. The outdoor intermediate horizontal frame member 11d is connected to the upper side near the outdoor side in FIG. 2, and the indoor intermediate horizontal frame member 11e is connected to the upper side near the indoor side between the left and right vertical frame members 11c.
The outdoor intermediate horizontal frame member 11d is located above the indoor intermediate horizontal frame member 11e.
As shown in FIG. 3, the vertical frame member 11c is an integral shape that is continuous from the indoor side to the outdoor side, for example, an aluminum extruded shape.

As shown in FIGS. 4, 5, and 6, the above-described outdoor side extends over the outdoor side portion of the lower horizontal frame member 11 b, the outdoor intermediate horizontal frame member 11 d, and the outdoor side portions of the left and right vertical frame members 11 c. A panel 12, such as glass, is mounted.
As shown in FIGS. 4, 5, and 6, between the indoor side portion of the upper horizontal frame member 11 a and the indoor intermediate horizontal frame member 11 e, a fireproof panel 13 a that is the indoor side panel 13 is provided. The spandrel part 10b is configured by the fireproof panel 13a.
A face material 13b, which is the indoor side panel 13, spans between the indoor side portion of the lower horizontal frame material 11b and the indoor side intermediate horizontal frame material 11e. The face material 13b is firmly attached in a watertight and airtight manner. The above-mentioned vision part 10a is constituted by the part. That is, the face panel 13b and the fireproof panel 13a serve as the indoor panel 13.

The face material 13b can be opened indoors.
For example, as shown in FIGS. 4 and 6, an indoor vertical frame member 11f is attached across the indoor side portion of the lower horizontal frame member 11b and the indoor intermediate horizontal frame member 11e, and the indoor vertical frame member 11f The indoor side intermediate horizontal frame member 11e and the indoor side portions of the left and right vertical frame members 11c form both side frame portions 11g and an intermediate frame portion 11h.
A sliding member 18 is attached to the both side frame portions 11g so as to be pivotable toward the indoor side to form a face material 13b that can be opened and closed. The blind frame 14b is opened by rotating the shoji 18 toward the indoor side to open the both side frame portions 11g. Maintenance and inspection etc.
A glass 19 is attached to the intermediate frame portion 11h to form a fixed face member 13b.

As shown in FIG. 4, the lower ventilation port 16 is substantially L-shaped, with the upper opening 16a opening in the intermediate air layer 15 facing upward and the lower opening 16b opening outside the room facing sideways.
The lower ventilation port 16 is formed in the lower horizontal frame member 11b. For example, the lower horizontal frame member 11b is formed of two members, and the lower ventilation port 16 is formed between the two members.
Specifically, the outdoor side member 20 and the indoor side member 21 form the lower horizontal frame member 11b, the outdoor side member 20 is connected between the left and right vertical frame members 11c, and the indoor side member 21 is The vertical frame member 11c is connected to the indoor side, and the outdoor member 20 and the indoor member 21 are separated in the indoor outside direction, and a lower ventilation passage 22 is formed therebetween.
The lower ventilation passage 22 is substantially L-shaped, and a grill 23 is attached to the upper portion (the above-described upper opening 16a) across the outdoor member 20 and the indoor member 21.
A louver 24 for a lower ventilation port is attached to the lower part of the lower ventilation passage 22 (the lower opening 16b described above).
That is, the lower ventilation port 16 has a grille 23 in the upper opening 16a and a louver 24 for the lower ventilation port in the lower opening 16b.

The indoor side member 21 is substantially L-shaped with a vertical portion 21a and a horizontal portion 21b, and the outdoor member 20 is attached to face the vertical portion 21a, and the indoor side surface and the indoor side member of the outdoor member 20 are attached. The lower ventilation passage 22 is formed by the substantially L-shaped outdoor side surface 21.
And the grille 23 is attached over the vertical part 21 a of the outdoor side member 20 and the indoor side member 21. A louver 24 for the lower ventilation port is attached across the outdoor member 20 and the indoor member 21.
The outdoor side surface 25 of the indoor side member 21 is curved in an arc shape so that the air flow can be smoothly converted to approximately 90 degrees.

The louver 24 includes a plurality of louver blades 26. The vertical dimension of the louver blades 26 is the same as the slat 14a of the blind 14, and the louver blades 26 and the slats 14a have the same appearance when viewed from the outdoor side. The interval between the upper and lower louver blades 26 is the same as the interval between the upper and lower slats 14a. The outdoor side end portion 26a of each louver blade 26 (the outdoor side end portion of the louver 24) is at the same position as the outdoor side end portion 14b of the slat 14a.
Specifically, as shown in FIGS. 4 and 7, the longitudinal bones 27 are fixed to a plurality of longitudinal positions at the indoor side end portions 26 b of the plurality of louver blades 26 to form the louvers 24.
The upper and lower parts of the vertical bone 27 are fixed to the indoor side portion of the outdoor side member 20 of the lower horizontal frame member 11b and the outdoor side portion of the horizontal portion 21b of the indoor side member 21 by attachment brackets 28, respectively. It is installed.
In the left and right vertical frame members 11 c, the lower outer side of the lower horizontal frame member 11 b that protrudes downward from the outdoor member 20 is cut out, and air flows from the cutout portion 29.
The lower horizontal frame member 11b may be integrated and the lower ventilation port 16 may be processed.

As shown in FIG. 5, the upper ventilation port 17 is formed between the upper horizontal frame member 11a and the outdoor intermediate horizontal frame member 11d.
That is, the upper horizontal frame member 11a is fixed to the indoor side of the vertical frame member 11c, and the outdoor intermediate horizontal frame member 11d is fixed to the outdoor side of the vertical frame member 11c, and the outdoor intermediate horizontal frame member 11d. The aforementioned lower opening 17a is formed between the indoor side surface and the indoor side panel 13 (fireproof panel 13a).
The upper horizontal frame member 11a is positioned above the outdoor intermediate horizontal frame member 11d, and the upper opening 17b is formed between the lower surface of the upper horizontal frame member 11a and the upper surface of the outdoor intermediate horizontal frame member 11d. is doing.

A louver 30 for the upper ventilation port is attached to the outdoor portion of the upper opening 17b so that the air in the intermediate air layer 15 is discharged obliquely downward.
The louver 30 includes a plurality of louver blades 31, and the plurality of louver blades 31 are disposed obliquely downward at intervals in the vertical direction. The vertical dimension of each louver blade 31 is the vertical dimension of the slat 14 a of the blind 14. The outdoor end 31a (the outdoor end of the louver 30) is the same position as the outdoor end 14b of the slat 14a of the blind 14 in the indoor outside direction, and the distance between the upper and lower louver blades 31 is the same. Is the same as the interval between the upper and lower slats 14a. That is, the two louvers 24 and 30 are the same.
Specifically, the vertical bones 32 are fixed to a plurality of positions spaced in the longitudinal direction of the indoor side end portions 31b of the plurality of louver blades 31. The upper and lower portions of the vertical bones 32 are mounting brackets 33 and upper horizontal frames. The material 11a is fixed to the outdoor intermediate horizontal frame member 11d, and the lower end of the vertical bone 32 is in contact with the upper surface of the outdoor intermediate horizontal frame member 11d.

The lower vent louver 24 continues to the lower end of the curtain wall unit 10.
The upper vent louver 30 continues to the upper end of the curtain wall unit 10.
As a result, the louver 24 for the lower ventilation port of the upper curtain wall unit 10 and the louver 30 for the upper ventilation port of the lower curtain wall unit 10 are continuous in the vertical direction, and the louver blades 26 and 31 are shown in FIG. As you can see, it looks like a single louver in the vertical direction, so it looks great.

  Further, since the vertical dimensions and vertical intervals of the louver blades 26 and 31 and the slats 14a are the same, and the indoor outside direction positions of the outdoor end portions are the same, the slats 14a of the blind 14 and the louvers of the lower vent louver 24 are provided. The outer appearance of the blades 26 and the louver blades 31 of the louver 30 for the upper ventilation port is continuous in the vertical direction.

A closing plate 35 is attached between the upper portions of the longitudinal bones 32 of the louver 30, and the upper portions of the adjacent longitudinal bones 32 are closed.
For example, the closing plate 35 is a long material having a cross-sectional shape having a horizontal piece and a vertical piece, a portion facing the vertical bone in the vertical piece is cut out, and the vertical bone 32 is fitted into the cutout portion. At the same time, the horizontal piece is in contact with the upper end surface of the vertical bone 32 so that the outdoor side surface of the vertical piece and the outdoor side surface of the vertical bone 32 are flush with each other, and the gap between the upper end surface of the vertical bone 32 and the upper portion of the outdoor side surface is closed. .
In addition, you may make it attach the obstruction board 35 between the side surfaces of the adjacent vertical board 32, respectively.
Thus, the air flowing out from the upper opening 17 b does not flow upward through the upper part of the longitudinal bone 32, but is surely discharged obliquely downward by the louver blade 31.

  A bird net 36 is attached to the lower opening 16b of the lower ventilation opening 16 and the upper opening 17b of the upper ventilation opening 17, respectively.

As shown in FIG. 5, the blind 14 includes a large number of slats 14a and a head box 14c, and a slat 14a is moved up and down by a string 14d by a drive mechanism (not shown) provided in the head box 14c.
The head box 14c is attached to the outdoor intermediate horizontal frame member 11d.

It is a partial external view of a curtain wall. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is an expansion detailed longitudinal cross-sectional view of the vision part of a curtain wall unit. It is an expansion detailed longitudinal cross-sectional view of the spandrel part of a curtain wall unit. It is an expansion detailed cross-sectional view of the vision part of a curtain wall unit. It is an expansion detailed external view of the spandrel part of a curtain wall unit.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Building frame, 2 ... Floor slab, 3 ... Fastener, 10 ... Curtain wall unit, 10a ... Vision part, 10b ... Spandrel part, 11 ... Frame, 11a ... Upper horizontal frame material, 11b ... Lower horizontal frame material, 11c ... left and right vertical frame members, 12 ... indoor side panels, 13 ... outdoor side panels, 14 ... blinds, 14a ... slats, 15 ... intermediate air layer, 16 ... lower vent, 17 ... upper vent, 24 ... lower Louver for ventilation port, 26 ... louver blade, 30 ... louver for upper ventilation port, 31 ... louver blade.

Claims (4)

A space is provided between an indoor panel and an outdoor panel attached to the frame, and a blind is provided near the outdoor panel in the space, and an intermediate air layer is formed between the blind and the indoor panel. A curtain wall unit in which the lower part of the intermediate air layer communicates with the outside through the lower ventilation port, and the upper part of the intermediate air layer communicates with the outside through the upper ventilation port, and the outer air communicates with the intermediate air layer.
A curtain wall characterized in that the frame of the curtain wall unit is mounted between floor slabs adjacent to the top and bottom of the building frame. The lower ventilation opening has an upper opening and a lower opening, and the upper opening is formed closer to the room than the blind and opens to the lower part of the intermediate air layer, and the lower opening is formed below the blind and opened to the outside of the room. Open and
The upper ventilation opening has a lower opening and an upper opening, and the lower opening is formed closer to the interior of the room than the blind and opens above the intermediate air layer, and the upper opening is formed above the blind and opens to the outside of the room. Open and
The curtain wall according to claim 1, wherein the upper opening of the lower ventilation opening and the lower opening of the upper ventilation opening are opposed to each other in the vertical direction so that outside air flows in a straight line in the intermediate air layer and does not interfere with the blind. . The width of the lower and upper vents is approximately equal to the width of the curtain wall unit,
The curtain wall according to claim 1, wherein the upper ventilation port has a structure that discharges air in an intermediate air layer obliquely downward. A louver with a plurality of louver blades is attached to the outdoor part of the lower vent and the outdoor part of the upper vent, respectively.
The vertical dimension of the louver blade of each louver is the same as the vertical dimension of the slat of the blind, the distance between the upper and lower louver blades is the same as the distance between the upper and lower slats, and the outdoor side of each louver blade and each slat The curtain wall according to claim 1, wherein the end portion is located at the same position in the indoor exterior direction.

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