KR20120112374A - Curtain wall unit and curtain wall - Google Patents

Abstract

The short circuit can be prevented and the curtain wall unit is excellent in appearance. Frame 10 formed by horizontal frame 40, 50, 60 and vertical frame 20, 30, first glass panel 70 disposed in a frame partitioned by the frame body, and first glass The second glass panel 75 is provided in a frame partitioned by a frame body, the surface being arranged so as to face one surface of the first glass panel at a predetermined distance from the panel. A hollow layer A surrounded by the first glass panel and the second glass panel is formed, and one of the horizontal frames of the frame body is provided with a flow opening 51a leading to the hollow layer, and at least among the vertical frames of the frame body. One is used as the curtain wall unit provided with the distribution ports 21a and 31a which lead to a hollow layer.

Description

Curtain Wall Unit and Curtain Wall {CURTAIN WALL UNIT AND CURTAIN WALL}

The present invention relates to a curtain wall unit parallel to a building periphery and a curtain wall including the curtain wall unit, and more particularly, to a double skin curtain wall unit and a curtain wall.

Since the curtain wall only needs to install the curtain wall unit assembled beforehand by the metal member in a building frame, in addition to being excellent in workability, it can respond to the request to the appearance of the glass base in recent years, Increasingly, new construction and reconstruction buildings are employed.

The curtain wall unit is a single skin curtain wall partitioning the interior and exterior by a single glass panel and a double skin curtain wall partitioning the interior and exterior by a plurality of glass panels in parallel having a predetermined gap in and out of the interior and exterior. There is this. In this double skin curtain wall, a hollow layer is formed between the glass panel arrange | positioned at the outdoor side and the glass panel arrange | positioned at the indoor side. By such a hollow layer, it can function as a heat insulation layer at the cold time, such as a winter season, and can improve the heating efficiency of an indoor side. On the other hand, in hot periods, such as summer, by raising the air in the hollow layer, it is possible to mitigate a rise in temperature, such as a glass panel warmed by direct sunlight or a blind disposed in the hollow layer. And since it becomes possible to suppress that these heat flows in the room, the cooling efficiency of the room side can be improved.

In response to the recent necessity of global warming deterrence, from the viewpoint of realizing energy saving to reduce the emission of greenhouse gas, the structure of the curtain wall unit that enables the improvement of the heating and cooling efficiency as described above has been It is increasing and becoming important.

By the way, in a double skin curtain wall unit, since a glass panel is made to be parallel in an indoor-outward direction, it is necessary to divide a space on the indoor side by all means. Therefore, it is desirable to make the installation space as thin as possible. However, when thinning in this way, a hollow layer becomes narrow and it exists in the tendency for above-mentioned ventilation efficiency to worsen by reduction of a ventilation amount or increase of a ventilation resistance.

Patent document 1 is disclosed as a means to ventilate a hollow layer. In the curtain wall of patent document 1, the ventilation opening which communicates with a hollow layer is provided in the lower horizontal frame and upper horizontal frame which form a frame body, and air can be distributed in the upper and lower ventilation sections.

Moreover, in the curtain wall unit (double-window unit) described in patent document 2, it is possible to form the some hole which communicates with a hollow layer along the longitudinal frame of a frame body, and it is possible to ventilate the inside of a hollow layer by this.

Japanese Patent No. 4325806 Japanese Patent Application Publication No. 2006-2395

However, in the curtain wall of patent document 1, the ventilation opening arrange | positioned in the upper horizontal frame of a certain curtain wall unit, and the ventilation opening arrange | positioned in the lower horizontal frame of the curtain wall adjacent to it are parallel and vertically adjacent. Therefore, the so-called short circuit that the air which flowed out from the lower curtain wall unit again flows into the upper curtain wall unit tends to occur, and the efficiency of ventilation is reduced. In addition, since the upper and lower horizontal frames having the ventilation holes overlap, the horizontal frame portion becomes thick when formed as a curtain wall, which is not preferable in appearance.

On the other hand, in the curtain wall described in Patent Document 2, since all of the plurality of ventilation ports are formed in the vertical frame, the horizontal frame can be prevented from becoming thick, and the short circuit can be reduced. However, since the flow of air is on approximately the same line in the longitudinal direction, there is still a problem of the short circuit. In addition, when the air flows in between the vertical frames, it is necessary to supply air from one of the vertical frames to both curtain wall units arranged on both sides thereof, and therefore, to obtain a sufficient amount of air, it is necessary to take a large length between the vertical frames. When formed as a curtain wall, the vertical frame portion sometimes appeared thick.

Therefore, in view of the above problem, it is an object of the present invention to provide a curtain wall unit which can prevent a short circuit and which is also excellent in appearance. In addition, a curtain wall provided with the unit is provided.

Hereinafter, the present invention will be described. In addition, in order to make an understanding of this invention easy, the code | symbol of an accompanying drawing is attached | subjected in parentheses, However, this invention is not limited to the form of illustration by this.

The invention according to claim 1 is a curtain wall unit (10, 10 ') disposed on the outer circumference of a building, and is formed by the horizontal frame (40, 50, 60) and the vertical frame (20, 30) At one side of the first glass panel at a predetermined distance from the sieve 15, the first glass panel 70 disposed in the frame partitioned by the frame body, and the first glass panel, A second glass panel 75 disposed in the frame partitioned by the frame body, the hollow layer A surrounded by the frame body, the first glass panel and the second glass panel is formed, and the frame One of the horizontal frames of the sieve is a curtain port unit 51a which passes through the hollow layer, and at least one of the vertical frames of the frame body is provided with distribution ports 21a, 31a leading through the hollow layer.

The invention described in claim 2 is a distribution port 21a, 31a provided in a vertical frame in a posture provided in a building in the curtain wall units 10, 10 ′ according to claim 1. Is characterized in that it is provided at a position higher than the distribution port 51a provided in the horizontal frame.

In the invention described in claim 3, in the curtain wall unit 10 'according to claim 1 or 2, the vertical frames 20 and 30 have water intrusion preventing means (90, 190). , 290, 390 is characterized in that it is provided.

The invention described in claim 4 includes a curtain wall unit (10, 10, ..., 10 ', 10', ...) according to any one of claims 1 to 3 along the outer periphery of the building. It is a curtain wall formed in parallel up, down, left, and right, and between the curtain wall units arrange | positioned up and down, the flow path which connects to the exterior from the distribution port 51a provided in the horizontal frame is formed, and between the curtain wall units arrange | positioned left and right, It is a curtain wall in which the flow path which connects to the exterior from the distribution ports 21a and 31a provided in the vertical frame is formed.

According to the curtain wall unit and curtain wall of this invention, about the external appearance, it can suppress that the frame of any length and width is thick, and can provide what is excellent in an external appearance.

Moreover, these can prevent a short circuit with respect to ventilation in a hollow layer, and can also suppress the temperature rise in a hollow layer low. Thereby, it can contribute to energy saving.

1 is an outdoor view front view of a curtain wall according to one embodiment.
FIG. 2 is a cross-sectional view shown as II-II in FIG. 1.
3 is a cross-sectional view taken along line III-III in FIG. 1.
FIG. 4 is a view corresponding to FIG. 3 among curtain walls according to a modification. FIG.
5 is a view for explaining water intrusion prevention means 190.
6 is a view for explaining water intrusion preventing means 290.
7 is a view for explaining water intrusion preventing means 390.

The above operation and benefits of the present invention will become apparent from the embodiments for carrying out the invention described below. EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated based on embodiment shown in drawing.

The external appearance of the building which the curtain wall which concerns on one Embodiment was comprised in FIG. As can be seen from FIG. 1, a curtain wall, which is one form of a building outer wall, is formed by installing a plurality of curtain wall units 10, 10, ... in parallel to the building frame in parallel with each other (for clarity, Only two curtain wall units 10, 10 adjacent to each other in the horizontal direction are indicated by solid lines, and the other curtain wall units 10, 10, ... are indicated by broken lines.

The curtain wall unit 10 includes a frame body 15 and an outdoor glass panel 70, an indoor glass panel 75 (see FIG. 2) and a span disposed in a frame partitioned by the frame body 15. The draft glass panel 80 and the board 85 (refer FIG. 2) are provided.

2 is a cross-sectional view (vertical cross-sectional view) along the line shown as II-II in FIG. 1, and FIG. 3 is a cross-sectional view (horizontal cross-sectional view) along the line shown as III-III in FIG. In FIG. 2, the left side of the ground is the outdoor side, and the right side of the ground is the indoor side. 3, the upper side of the ground is the indoor side, and the lower side of the ground is the outdoor side.

The frame 15 is composed of a vertical frame 20, a vertical frame 30, and an upper horizontal frame 40 that is a horizontal frame, a lower horizontal frame 50, and an intermediate horizontal frame 60 combined in a rectangular frame shape. It is. In detail, as can be seen from FIG. 1, a frame shape is formed by the vertical frames 20 and 30, the upper horizontal frame 40, and the lower horizontal frame 50, and the upper horizontal frame 40 and the lower side. An intermediate horizontal frame 60 is arranged between the horizontal frames 50 so as to partition across the vertical frames 20, 30. As a result, the first partition 11 and the vertical frames 20 and 30 and the upper horizontal frame 40 partitioned by the vertical frames 20 and 30, the intermediate horizontal frame 60, and the lower horizontal frame 50. The second partition 12 is formed by the intermediate horizontal frame 60. The 1st partition part 11 is arrange | positioned in the site | part corresponding to the building outer peripheral part of the living space of a building, and the 2nd partition part 12 is arrange | positioned in the site | part corresponding to the ceiling and the floor of each floor, Sometimes called.

As the cross section of the upper horizontal frame 40 is shown in Fig. 2 (however, the upper horizontal frame 40 is a curtain wall unit 10 disposed below the curtain wall unit 10 shown in solid lines in Fig. 1). ) Is the upper horizontal frame 40. The cross section is the same and will be explained by ease of explanation], and has a piece 41 extending in the indoor / outward direction (depth direction). Moreover, the glass installation part 42 which accommodates the upper end part of the spandex part glass panel 80 is provided in the outdoor side of the piece 41, and the board installation part 43 which accommodates the upper end part of the board 85 is provided in the indoor side. ). Moreover, on the upper surface side of the piece 41, it has a to-be-engaged part 44 which the convex part 56 of the lower horizontal frame 50 of the curtain wall unit 10 adjoining on the said curtain wall unit 10 engages. have.

The lower horizontal frame 50 has a piece 51 extending in the interior and exterior direction (depth direction), as the cross section is shown in FIG. The glass panel mounting part 52 which accommodates the lower end part of the outdoor glass panel 70 is provided in the outdoor side of the piece 51, and the glass panel installation part accommodating the lower end part of the indoor glass panel 75 in the indoor side ( 53).

On the piece 51, the slit 51a as a distribution opening which penetrates the piece 51 along the longitudinal direction of the lower horizontal frame 50 between the glass panel mounting part 52 and the glass panel mounting part 53. (Refer FIG. 2, FIG. 3) is formed. The lower surface side of the piece 51 is provided with the piece 54 which extends downward from the slit 51a from the outdoors side, and the piece 55 which extends downward from the indoor side from the slit 51a. Therefore, the flow path which leads to the slit 51a by the piece 54 and the piece 55 is formed.

Moreover, the lower surface side of the piece 51 further has the convex part 56 couple | bonded with the to-be-engaged part 44 of the upper horizontal frame 40 of the curtain wall unit 10 adjacent below.

As the cross section is shown in FIG. 2, the intermediate horizontal frame 60 has a piece 61 extending in the indoor / outward direction (depth direction). The glass panel mounting part 62 which accommodates the upper end of the outdoor glass panel 70 is provided in the outdoor side of the piece 61, and the glass panel mounting part which accommodates the upper end of the indoor glass panel 75 in the indoor side ( 63). In addition, the lower surface of the piece 61 is provided so that the blind 13 may fall vertically.

Moreover, the glass installation part 64 which accommodates the lower end part of the spandex part glass panel 80 is provided in the outdoor side of the piece 61, The board installation part 65 which accommodates the lower end part of the board 85 is provided in the indoor side. ).

As the vertical frame 20 shows the cross section in FIG. 3, the vertical frame 20 has the piece 21 extended in an indoor-outward direction (depth direction). The glass panel mounting part 22 which accommodates the side end part of the outdoor glass panel 70 is provided in the outdoor side of the piece 21, and the glass panel installation which accommodates the side end part of the indoor glass panel 75 is provided in the indoor side. The part 23 is provided.

When combined with the adjacent curtain wall unit 10 among the surfaces of the piece 21, the piece 24 extending in the width direction from the surface facing the adjacent curtain wall unit 10 side and the piece It has the piece 25 arrange | positioned from 24 at the room side.

In addition, in the piece 21, between the glass panel mounting part 22 and the piece 24 (refer FIG. 3), and between the middle horizontal frame 60 and the lower horizontal frame 50 (refer FIG. 2). The slit 21a as a distribution port which penetrates the said piece 21 is formed.

The position of the slit 21a is not particularly limited, but as will be described later, air flows out of the slit 21a by buoyancy due to a decrease in air density, so that the position of the slit 21a is as high as possible, that is, as close to the intermediate horizontal frame 60 as possible. It is preferable to arrange | position to the side.

In addition, the opening area of the slit 21a is determined from the viewpoint of the smooth airflow. As one example of determining the opening area, it is also possible to obtain the size of the opening area and the like from the idea of the equivalent opening area. The equivalent opening area means an area effective for ventilation and is represented by αA (cm 2) and is obtained from the following equation (1).

Where γ is the density of air (kg / m 3), Q ₀ is the leakage amount Q (m 3 / h) when the internal and external pressure Δp = 1 mmAq (9.8Pa), g is the acceleration of gravity (m / s ² ), n is a coefficient representing the gap characteristic (1 is taken for laminar flow, 2 is taken for turbulent flow), and α is a flow coefficient.

As the vertical frame 30 shows the cross section in FIG. 3, the vertical frame 30 has the piece 31 extended in an indoor-outward direction (depth direction). The glass panel mounting part 32 which accommodates the side end part of the outdoor glass panel 70 is provided in the outdoor side of the piece 31, and the glass panel installation which accommodates the side end part of the indoor glass panel 75 is provided in the indoor side. The part 33 is provided.

The piece 34 and the said piece which extend in the width direction from the surface which faces the said curtain wall unit 10 side when combined with the adjacent curtain wall unit 10 among the surfaces of the piece 31. It has the piece 35 arrange | positioned from the 34 to the indoor side. Packings are provided at the ends of the pieces 34 and 35, respectively.

In addition, among pieces 31, between glass panel mounting part 32 and piece 34 (refer FIG. 3), and between middle horizontal frame 60 and lower horizontal frame 50 (refer FIG. 2). The slit 31a as a distribution port which penetrates the said piece 31 is formed.

The position of the slit 31a is not particularly limited, but as will be described later, air flows out of the slit 31a by buoyancy due to a decrease in air density, so that the position of the slit 31a is as high as possible, that is, as close to the intermediate horizontal frame 60 as possible. It is preferable to arrange | position to the side. It is preferable that the position where the slit 31a is arrange | positioned is the same height position as the said slit 21a. As a result, the hollow layer A is arranged in a balanced manner. However, this does not prevent the height position of the slit 21a and the slit 31a from changing, but may change the height position as needed as needed. Since the opening area of the slit 31a is the same as that of the slit 21a mentioned above, description is abbreviate | omitted here.

In this embodiment, although the slit 21a and the slit 31a were formed in each of the vertical frames 20 and 30, the slit may be formed only in either one. In this embodiment, the slits 21a and 31a were formed as a preferable form for the reason that the area of the distribution port is better and the balance of the arrangement distribution in the hollow layer A is good. Therefore, as long as the opening area of a slit is enough, or the balance of the arrangement distribution of a hollow layer is an allowable range, only one may be sufficient.

The outdoor glass panel 70 is a 1st glass panel arrange | positioned at the outdoor side among the 1st partition parts 11 of the said frame body 15, as FIG. Accordingly, the four sides of the packing material are provided on the glass panel mounting portions 22, 32, 52, and 62 of the vertical frame 20, the vertical frame 30, the lower horizontal frame 50, and the intermediate horizontal frame 60, respectively. In addition, watertight confidentiality is secured and installed.

The interior glass panel 75 is a 2nd glass panel arrange | positioned at the interior side among the 1st partition parts 11 of the said frame body 15, as can be seen from FIG. It is a panel. Therefore, the outdoor glass panel 70 and the indoor glass panel 75 are parallel to each other at predetermined intervals. The four sides of the interior glass panel 75 are each of the glass panel mounting portions 23, 33, 53 of the vertical frame 20, the vertical frame 30, the lower horizontal frame 50, and the intermediate horizontal frame 60. 63) The watertight airtightness is secured together with the packing material.

As can be seen from FIG. 1 and FIG. 2, the spandular glass panel 80 is a glass panel disposed on the outdoor side of the second partition 12 of the frame 15. Therefore, the four sides of the packing material are attached to the glass panel mounting portions 22, 32, 42, and 64 of the vertical frame 20, the vertical frame 30, the upper horizontal frame 40, and the intermediate horizontal frame 60, respectively. In addition, watertight confidentiality is secured and installed.

As can be seen from FIG. 2, the board 85 is a plate-shaped member which is disposed inside the second partition 12 of the frame body 15 and is concealed when the inside thereof is viewed outdoors. Therefore, the spanned portion glass panel 80 and the board 85 are paralleled at a predetermined interval outside the room. Four sides of the board 85 are provided with watertight airtightness together with a packing material in each of the vertical frame 20, the vertical frame 30, the upper horizontal frame 40, and the intermediate horizontal frame 60.

In the curtain wall unit 10 combined as mentioned above, as shown from FIG. 2, FIG. 3, in the 1st partition part 11, all four sides are vertical frame 20, the vertical frame 30, The hollow layer A is surrounded by the intermediate horizontal frame 60 and the lower horizontal frame 50, and the interior and exterior surfaces thereof are closed by the outdoor glass panel 70 and the indoor glass panel 75. In addition, the hollow layer A can communicate with the outside via the slit 21a of the vertical frame 20, the slit 31a of the vertical frame 30, and the slit 51a of the lower horizontal frame 50. It is.

In this embodiment, by reaching the position where the intermediate horizontal frame 60 is exposed to the outdoor side, the first partition 11 and the second partition 12 are different glass panels (outer-side glass panel 70 and Spandular glass panel 80]. However, the present invention is not limited thereto. For example, when watertight airtightness is taken from the first compartment and the second compartment, the intermediate horizontal frame is not exposed to the outdoor side, and one sheet in which the first compartment and the second compartment are common. You may have the glass panel of the outdoor side of the.

When the curtain wall unit 10 is combined with another curtain wall unit 10, it becomes as follows.

The curtain wall unit 10 and the curtain wall unit 10 which are combined adjacent to this lower part are shown well in the part shown by B in FIG. That is, the convex part 56 provided in the lower horizontal frame 50 of the curtain wall unit 10 arrange | positioned at the upper side is provided in the upper horizontal frame 40 of the curtain wall unit 10 arrange | positioned at the lower side. It is coupled to the coupling portion 44. In this case, as shown by C in FIG. 2, between the upper horizontal frame 40 and the lower horizontal frame 50, and the ones 54 and 51 of the lower horizontal frame 50, A distribution path C through the outside is formed.

On the other hand, the combination of the curtain wall units 10 and 10 adjacent to the left and right becomes as follows, as shown in FIG. That is, the piece 34 of the vertical frame 30 of the curtain wall unit 10 adjacent to the piece 24 of the vertical frame 20 is closely adhered through the packing. Similarly, the piece 35 of the vertical frame 30 of the curtain wall unit 10 adjacent to the piece 25 of the vertical frame 20 is in close contact with each other through the packing. In addition, the glass panel mounting portion 23 and the glass panel mounting portion 33 of the vertical frame 30 of the curtain wall unit 10 adjacent thereto are closely adhered through the packing.

At this time, as shown by the D, D in Fig. 3, the slit (21a, 31a) and the flow path (D, D) through the outside between the vertical frame 20 and the vertical frame 30 is formed.

According to the curtain wall formed in the building by the curtain wall units 10, 10, ... as described above, since the air inflow passage and the outflow passage are divided into horizontal frames and vertical frames, any one of the vertical and horizontal frames is thickened. It can be suppressed. Therefore, it becomes possible to comprise the curtain wall excellent also in an external appearance.

For example, in the case of using a single skin curtain wall and a double skin curtain wall separately according to an orientation facing the outer wall in one building, when unifying the appearance, the frame is not too thick in a preferable form. Can be unified.

In addition, by suppressing the thickening of the frame, the contamination is less, and it becomes inconspicuous. In particular, since there is no need for an exposed large water return member (so-called: the blade plate of the blind field in parallel) for a conventional exhaust and exhaust, it is possible to prevent the problem of appearance due to the contamination. In addition, the structure of a member and a distribution port was simplified, and it became possible to provide a curtain wall at low cost.

According to the curtain wall provided with the curtain wall units 10, 10, ..., the air in the hollow layer A is ventilated as follows. It demonstrates, referring FIG. 2 and FIG.

Initially, the outdoor glass panel 70, the indoor glass panel 75, the blind 13, etc. are warmed by solar radiation etc., and the air in the hollow layer A is heated, and therefore, in the hollow layer A At the same time as the air is warmed, its density decreases.

The air whose density is reduced in this way rises, and the air in the hollow layer A flows out in order to sequentially extrude the air from the slits 21a and 31a of the vertical frames 20 and 30. At this time, air flows through the passage formed between the slit 21a, 31a between the vertical frames 20, 30, as shown by D in FIGS.

On the other hand, with the outflow of air from the hollow layer A, air flows in from the slit 51a of the lower horizontal frame 50 so that it may be sucked in the hollow layer A. FIG. This air flows through the passage formed between the upper horizontal frame 40 and the lower horizontal frame 50 and between the pieces 54 and 55, as shown by C in FIG. Since the air introduced is outside air and at least a temperature lower than the air warmed in the hollow layer A, the outdoor glass panel 70, the indoor glass panel 75, the blind 13, and the like are cooled by this.

By repeatedly performing the above heating and air movement continuously, the inside of the hollow layer A can be stabilized at a lower temperature than when there is no air movement, and it becomes possible to suppress the fall of the cooling efficiency on the indoor side. .

In addition, in the curtain wall by the curtain wall units 10, 10, ..., air flows in from the lower horizontal frame 50, and air flows out from the vertical frames 20, 30, and thus flows out from the hollow layer A. The opportunity for air to flow back into the hollow layer A can be greatly reduced. As a result, the short circuit can be prevented, and the air in the hollow layer A can be stabilized at a lower temperature.

In addition, since the distribution port of the horizontal frame can be made large over the entire length of the said horizontal frame, and the distribution port of the vertical frame corresponding to this can be provided in the said vertical frame, an effective distribution port area can be taken large.

In this embodiment, in the hollow layer A, the slit for air inflow was provided in the lower horizontal frame, and the slit for air outflow was arrange | positioned at the site | part of the vertical frame arrange | positioned upward by this. However, from the viewpoint of preventing the short circuit, this positional relationship may be reversed. That is, the slit for air inflow may be provided in the lower part of the vertical frame in the hollow layer A, and the slit for air outflow may be provided in the intermediate horizontal frame, and the outflow channel may be arranged.

In the present embodiment, as described below, the curtain wall unit 10 described above is described as a preferred embodiment from the viewpoint of discharging the water penetrating into the hollow layer A. FIG.

In the curtain wall units 10, 10,..., Even when rainwater enters the hollow layer A from the slits 21a and 31a of the vertical frames 20 and 30, the rainwater is the lower horizontal frame 50. The water may not accumulate in the hollow layer A by falling out of the slit 51a of the slit). This makes it possible to prevent the occurrence of mold and contamination in the hollow layer (A).

In addition, the water removed from the slit 51a moves the piece 41 of the upper horizontal frame 40 to the longitudinal direction of the said piece 41, and between the curtain wall units adjacent in a horizontal direction (between vertical frames). ) The drip tray (catch pan) which is not shown in figure is provided between the said vertical frames, and is discharged | emitted outside here.

4, the figure for demonstrating the curtain wall formed by the curtain wall units 10 'and 10' which concerns on a modification is shown. 4 is a diagram corresponding to FIG. 3. In the curtain wall units 10 'and 10', only the point in which the water intrusion prevention means 90 is provided with respect to the curtain wall units 10 and 10 mentioned above differs, and about the other part, the said curtain wall unit 10 And 10), the same reference numerals are given and the description is omitted.

The water penetration prevention means 90 is equipped with the 1st member 91 and the 2nd member 92. As shown in FIG. As can be seen from FIG. 4, the first member 91 is a member having a substantially L-shaped cross section. The installation piece 91b is provided in the edge part of the one side 91a side of the L-shape of the 1st member 91 so that it may orthogonally cross the said piece 91a. Further, a plurality of projections 91d, 91d, ... are provided on the surface of the other side 91c of the L-shape. Moreover, the edge part 91e of the piece 91c is bent in the same direction as the piece 91a side.

On the other hand, the 2nd member 92 is provided with three pieces 92a, 92b, 92c formed in the line shape in the cross section.

As can be seen from FIG. 4, the first member 91 and the second member 92 have a vertical frame 20 when the curtain wall is formed by the curtain wall units 10 ', 10',... , The vertical frame 30, the pieces 24 and 34 and the glass panel mounting portions 22 and 32 are arranged in a space enclosed. In more detail as follows.

The 1st member 91 is provided in the vertical frame 30, in which case the piece 91a extends in a depth direction, and the piece 91c of the vertical frame 20 of the curtain wall unit 10 'which is adjacent to it is provided. It is a direction extending in the direction. The projections 91d, 91d, ... of the piece 91c can face the side where the glass panel mounting portions 22, 32 are arranged. As can be seen from FIG. 4, the piece 91c is formed to intersect the depth-direction interior side of the gap between the glass panel mounting portions 22 and 32.

The 2nd member 92 is provided in the vertical frame 20, and in that case, the piece 92a is fixed to the interior side surface of the glass panel mounting part 22. As shown in FIG. In addition, the piece 92b extends so as to incline to the interior side in the direction of the vertical frame 30 of the adjacent curtain wall unit 10 '. The piece 92c extends in the direction of the vertical frame 30 of the curtain wall unit 10 'which is further adjacent from the tip of the piece 92b. In the 2nd member 92, the piece 92b and the piece 92c are formed so that it may cross the depth direction interior side of the clearance gap between the glass panel mounting parts 22 and 32. As shown in FIG.

According to the above-mentioned water intrusion prevention means 90, even if rainwater intrudes between the glass panel mounting parts 22 and 32 from the direction shown by E in FIG. 4, further intrusion of rainwater by the 2nd member 92 is carried out. This is suppressed. Alternatively, further intrusion of rainwater is also suppressed by the first member 91, and intrusion of rainwater from the slits 21a and 31a into the hollow layers A and A is prevented.

Since the projections 91d, 91d, ... are provided in the piece 91c of the 2nd member 91, and the edge part 91e is also provided, the movement of rainwater is interrupted here, and the intrusion is effectively prevented. . On the other hand, as apparent from FIG. 4, since the air flow path is secured, the outflow of air from the hollow layers A and A is not inhibited.

The water penetration prevention means 90 should just be provided in the vicinity of the position provided with the slit 21a, 31a. Therefore, it is not necessary to extend over the entire length of the vertical frames 20, 30, and is about the same as the size of the direction along the longitudinal direction of the vertical frames 20, 30 of the slits 21a, 31a to 100 mm long. The degree is good. Thereby, compared with the case where it extends over the whole length direction, cost can be suppressed and ventilation resistance can also be suppressed low.

5-7 is a figure for demonstrating each of the water penetration prevention means 190, 290, and 390 of another form. 5-7 is a figure corresponding to FIG.

The water intrusion prevention means 190 shown in FIG. 5 is provided with the 1st member 191 and the 2nd member 192. As shown in FIG. Since the 1st member 191 and the 2nd member 192 have a symmetrical shape, only the 1st member 191 is demonstrated here.

As can be seen from FIG. 5, the first member 191 is a member having an approximately L-shaped cross section, which is a short piece 191a in the width direction and a long piece 191b in the depth direction. The piece 191a also serves to press the outdoor side surface of the side end of the outdoor glass panel 70.

On the other hand, the piece 191b is in the space enclosed by the vertical frame 20, the vertical frame 30, the pieces 24 and 34, and the glass panel mounting parts 22 and 32 from the edge part of the piece 191a. Extends to the interior. Here, the indoor side edge part of the piece 191b is bent in the width direction toward the opposite side to the piece 21 side. Moreover, among the surface of the piece 191b, the some protrusion 191c, 191c, ... which paralleled in the depth direction is provided from the surface on the opposite side to the side which opposes the piece 21. As shown in FIG.

According to the water intrusion prevention means 190 described above, even if rainwater enters between the glass panel mounting portions 22 and 32 from the direction shown by F in FIG. 5, the first member 191 and the second member 192 are separated. Since the narrow space between them is formed long, the flow resistance is large and further intrusion of rainwater is suppressed. Alternatively, the flow of water to the indoor side is prevented by the projections 191c, 191c, ..., 192c, 192c, ..., which effectively prevents water from entering. On the other hand, as is apparent from FIG. 5, since the air flow path is secured, the outflow of air from the hollow layers A and A is not inhibited.

The water intrusion prevention means 190 should just be provided in the vicinity of the position provided with the slit 21a, 31a. Therefore, it is not necessary to extend over the entire length of the vertical frames 20, 30, and is about the same as the size of the direction along the longitudinal direction of the vertical frames 20, 30 of the slits 21a, 31a to 100 mm long. The degree is good. Thereby, compared with the case where it extends over the whole length direction, cost can be suppressed and ventilation resistance can also be suppressed low.

The water intrusion prevention means 290 shown in FIG. 6 is equipped with the 1st member 291 and the 2nd member 292. Since the 1st member 291 and the 2nd member 292 have symmetrical shape, only the 1st member 291 is demonstrated here.

As can be seen from FIG. 6, the first member 291 is provided at an inner corner of the glass panel attaching portion 22 and extends to the interior side. Here, the interior side edge part of the 1st member 291 is bent in the width direction toward the opposite side to the piece 21 side.

According to the above-mentioned water intrusion prevention means 290, even if rainwater intrudes between the glass panel mounting parts 22 and 32 from the direction shown by G in FIG. 6, the 1st member 291 and the 2nd member 292 are the same. Since the narrow space between them is formed long, the flow resistance is large and further intrusion of rainwater is suppressed. On the other hand, as is apparent from FIG. 6, since the air flow path is secured, the outflow of air from the hollow layers A and A is not inhibited.

The water intrusion prevention means 290 should just be provided in the vicinity of the position provided with the slit 21a, 31a. Therefore, it is not necessary to extend over the entire length of the vertical frames 20, 30, and is about the same as the size of the direction along the longitudinal direction of the vertical frames 20, 30 of the slits 21a, 31a to 100 mm long. The degree is good. Thereby, compared with the case where it extends over the whole length direction, cost can be suppressed and ventilation resistance can also be suppressed low.

The water intrusion prevention means 390 shown in FIG. 7 is provided with the piece 391 and the piece 392. As can be seen from FIG. 7, the piece 391 is provided at an outdoor corner of the glass panel attaching part 32 and extends to the outdoor side. The piece 392 is a piece extending in the width direction from the outdoor end of the piece 391. Here, the piece 392 is provided so as to cross the depth direction outdoor side between the glass panel attaching part 22 and the glass panel attaching part 32. Therefore, according to the water intrusion prevention means 390, the rainwater from the direction shown by H in FIG. 7 touches the piece 392 and cannot intrude between the glass panel mounting parts 22 and 32. FIG. On the other hand, as is apparent from FIG. 7, since the air flow path is secured, the outflow of air from the hollow layers A and A is not inhibited.

The water intrusion prevention means 390 should just be provided in the vicinity of the position provided with the slit 21a, 31a. Therefore, it is not necessary to extend over the entire length of the vertical frames 20, 30, and is about the same as the size of the direction along the longitudinal direction of the vertical frames 20, 30 of the slits 21a, 31a to 100 mm long. The degree is good. Thereby, compared with the case where it extends over the whole length direction, cost can be suppressed and ventilation resistance can also be suppressed low.

However, since the water intrusion prevention means 390 is exposed to the outdoors, the water intrusion prevention means 390 may extend long along the longitudinal direction of the vertical frames 20 and 30 from an external viewpoint. This also has a function as the water intrusion prevention means 390.

As mentioned above, although this invention was demonstrated in connection with embodiment which is considered practical and preferable at this time, this invention is not limited to embodiment disclosed in this specification, It is invention which is read from a Claim and the whole specification. Changes can be made as appropriate without departing from the spirit or spirit of the invention, and the curtain wall unit accompanying such a change and the curtain wall on which the curtain wall unit is disposed are also not understood as being included in the technical scope of the present invention. Can not be done.

10: curtain wall unit
15 frame
20: vertical frame
21a: slit (distribution port)
30: vertical frame
31a: slit (distribution port)
40: horizontal frame on the upper side (horizontal frame)
50: lower horizontal frame (horizontal frame)
60: middle horizontal frame (horizontal frame)
70: outdoor glass panel (first glass panel)
75: indoor glass panel (second glass panel)
90, 190, 290, 390: water intrusion prevention means

Claims (4)

Curtain wall unit is disposed on the outer periphery of the building,
A frame formed by a horizontal frame and a vertical frame,
A first glass panel disposed in a frame partitioned by the frame body;
A second glass panel is provided at a predetermined distance from the first glass panel, and is disposed to face one surface of the first glass panel so as to be provided in a frame partitioned by the frame body.
A hollow layer surrounded by the frame body, the first glass panel and the second glass panel is formed,
One of said horizontal frames of the said frame body is provided with the distribution port which leads to the said hollow layer, and at least one of the said vertical frames of the said frame body will be provided with the distribution port which leads to the said hollow layer. The curtain wall unit according to claim 1, wherein in the posture provided in the building, the distribution port provided in the vertical frame is provided at a position higher than the distribution port provided in the horizontal frame. The curtain wall unit according to claim 1 or 2, wherein said vertical frame is provided with water intrusion prevention means. It is a curtain wall formed in parallel with the curtain wall unit in any one of Claim 1 thru | or 3 along the outer periphery of a building,
Between the curtain wall units arranged up and down, a distribution passage communicating with the outside from the distribution port provided in the horizontal frame is formed,
A curtain wall is formed between the curtain wall units arranged to the left and right, and has a flow passage communicating with the outside from the distribution port provided in the vertical frame.

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