JPH084163A - Open air introduction structure in curtain wall - Google Patents

Abstract

PURPOSE:To facilitate the work and enhance the weathering resistance and sufficiently introduce the open air. CONSTITUTION:A water drip material 11 and a back board material 12 are laid out in parallel, and separated by a specified dimension from each other, thereby forming an open air introduction space 15 having an open air-side opening 16 and an isotactic space-side opening 17. Shielding parts 11A and 12B, which shield a linear line 19 which connects openings 16 and 17 to each other, are projectingly installed to the water drip material 11 and the back board material 12 directed into the space 15. The rainwater which has penetrated the shielding parts 11A and 12B with open air from the opening 16 is removed. Since the openings 16 and 17 are formed to a full-width of a sash, it is possible to take up a large opening area and maintain a voluminous space at an isotactic pressure to the atmosphere.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curtain wall composed of a plurality of panels such as PC (precast concrete) panels, aluminum panels, and glass sash panels, which is formed with equal pressure for preventing water leakage between the panels. The present invention relates to an outside air introduction structure for introducing outside air into a space.

[0002]

BACKGROUND ART In a curtain wall composed of a plurality of panels, it is necessary to seal between the panels so that water does not leak. In recent years, a dry seal system has been widely used because it has good workability and can secure sealing performance for a long period of time. By the way, in the dry seal method of the PC curtain wall using the PC panel,
Usually, a part of the sealing material for the rain barrier provided between the upper and lower panels is cut and opened to introduce the outside air, and the space with the sealing material for the wind barrier is made to have an equal pressure. However, in such an outside air introduction structure, the opening is exposed to the outside, and rainwater easily enters, so
As shown in FIG. 1, when a sash (construction tool) 2 that constitutes an opening window is provided in a part of the PC panel 1, as shown in FIG. There was an outside air introduction structure.

That is, the PC panels 1 arranged one above the other
A hollow drainage member 31 is attached to the lower frame of the aluminum sash 2 provided on the upper panel 1 of the. On the outside of the lower surface of the draining member 31, a lower PC
A seal material 5 for a rain barrier that comes into contact with the panel 1 is attached, and a seal material 6 for a wind barrier is attached on the indoor side. On the other hand, on the upper surface of the PC panel 1,
A splash barrier 7 that abuts the draining material 31;
A seal material 8 for a wind barrier that is in contact with the seal material 6 is attached.

On the outdoor side of the hollow portion of the draining material 31, a plurality of outside air side openings 32 are formed at predetermined intervals along the longitudinal direction of the draining material 31, which are open to the outside of the sealing material 5. On the other hand, on the indoor side of the hollow portion of the draining member 31, an equal pressure space side opening 33 that opens toward the equal pressure space 9 formed between the rain barrier seal material 5 and the wind barrier seal materials 6 and 8 is formed. Are formed at predetermined intervals. At this time, the respective openings 32 and 33 are staggered so that their respective opening positions do not overlap in the indoor and outdoor directions so that the rainwater does not leak from the opening 33 into the isobaric space 9 when rainwater enters the opening 32 together with the outside air. It was formed by processing.

[0005]

However, since the openings 32 and 33 have to be formed by machining, there is a problem that the machining work is complicated, the productivity is low, and the cost is high. Further, since the inner surface of the hollow portion of the draining member 31 cannot be surface-treated, there is a problem that weather resistance is low when rainwater enters. Furthermore, since it is necessary to stagger each opening 32, 33, each opening 3
It is not possible to increase the opening area of 2, 33, and in particular, as shown in FIG. 1, the sash 2 provided in a part of the PC panel 1 is used.
With the openings 32 and 33 formed only in the lower frame part of the PC, the constant pressure space 9 and the constant pressure space 1 on the outer periphery of the PC panel 1 communicating with the constant pressure space 9 are formed.
When it is necessary to make 0 equal to the outside air, there is also a problem that the outside air cannot be introduced sufficiently.

An object of the present invention is to provide an outside air introduction structure for a curtain wall, which is easy to process, can improve productivity, can improve weather resistance, and can introduce sufficient outside air.

[0007]

According to the present invention, in a curtain wall composed of a plurality of panels, an equal pressure formed on an outer periphery of a panel provided on at least one of an upper side and a lower side of a fitting provided on the panel. An outside air introduction structure for introducing outside air into a space, in which upper and lower profiles are formed according to the width dimension of a fitting, and these upper and lower profiles are arranged parallel to each other and separated by a predetermined dimension. To form an outside air introduction space, and at least one of the upper shape member and the lower shape member, a shielding portion that shields a straight line path connecting the outside air side opening and the equal pressure space side opening of the outside air introduction space in the outside air introduction space. It is characterized in that it is installed in. At this time, it is preferable that the outside air side opening is formed at a lower level position than the constant pressure space side opening.

[0008]

In the present invention as described above, the outside air introduction space is formed from the outside air side opening formed between the upper and lower profiles.
The outside air is introduced into the constant pressure space through the constant pressure space side opening. The isobaric space communicates with the isobaric space around each panel, and each isobaric space is maintained at an isobaric pressure by the introduction of outside air. At this time, since each opening is formed to fill the width of the fitting such as an aluminum sash, the opening area becomes large, and even if the volume of the isobaric space is large, the isobaric space is reliably maintained at the same pressure as the outside air. It Further, even if rainwater enters through the outside air side opening, it will not be blocked by the shielding portion and leak to the isobaric space side opening, and will not leak inside the isobaric space and thus through the wind barrier portion to the indoor side.

[0009]

An embodiment of the present invention will be described below with reference to the drawings. In this embodiment, the same or corresponding components as those of the conventional example are designated by the same reference numerals, and the description thereof will be omitted or simplified. As shown in FIG. 1, the curtain wall to which the outside air introduction structure of the present embodiment is applied is composed of a plurality of PC panels 1 partially provided with an aluminum sash 2. As shown in FIG. 2, the upper part of the PC panel 1 is
A step is formed through the slope so that the inside is higher than the outside. A decorative panel 3 such as a stone material is attached to the outer surface of the concrete portion of the PC panel 1.

On the other hand, on the lower frame 2A of the aluminum sash 2 of the PC panel 1, a draining member 11 which is an upper shape member is attached. Below the draining material 11, the draining material 11
In parallel with the water draining member 11 and a predetermined distance from the draining member 11, a water repelling member 12 which is a lower section member is arranged. Both ends of the draining member 11 and the draining member 12 are screwed to the vertical frame of the sash 2 and are not directly connected to each other. However, when the draining member 11 and the water return member 12 have large longitudinal dimensions, a piece-shaped connecting member 13 may be attached to the intermediate portion in the longitudinal direction.

A sealing material 6 for a wind barrier is attached to the lower surface on the indoor side of the draining material 11 over the entire length in the longitudinal direction, and a sealing material for a rain barrier is provided on the lower surface on the outdoor side of the water return material 12 over the entire length in the longitudinal direction. Material 5 is attached. Further, on the upper surface of the PC panel 1, a splash barrier 7 and a sealing material 8 for a wind barrier are provided.
Are attached over their entire length in the longitudinal direction.
By installing the PC panel 1, these sealing materials 5 to 8 are in close contact with the panel 1, the water return material 12, the sealing materials 6 and 8 and the like to ensure watertight performance. An isobar space 9 is formed by the space between the seal materials 5, 6, 8 of the rain barrier and the wind barrier.

Between the draining member 11 and the draining member 12,
An outside air introduction space 15 is formed. Outside air introduction space 15
Outdoor side, that is, the outdoor side edge of the water return material 12 and the draining material 1
The outside air-side opening 16 that is opened downward is formed by the gap formed between the insides 1, and is formed inside the outside air introduction space 15, that is, between the indoor side edge of the water return member 12 and the draining member 11. An equal pressure space side opening 17 opened toward the equal pressure space 9 side is formed by the gap.

The draining member 11 is provided with a first shielding portion 11A which projects horizontally toward the outside air introducing space 15 at a position above the outside air side opening 16. On the other hand, in the water return member 12, a rising wall portion 12A formed so as to face the indoor side edge of the shielding portion 11A, and this wall portion 12
A second shielding portion 12B is formed so as to horizontally project from the upper end of A toward the outdoor side. As a result, the straight line path 19 from the opening 16 to the opening 17 becomes
The outside air from the opening 16 is shielded by A and 12B, and is configured to flow to the opening 17 side through the meandering flow path 18 formed in the shield portions 11A and 12B in a substantially S shape.

According to the present invention as described above, the outside air side opening 1
The outside air flowing from 6 through the meandering flow path 18 in the outside air introduction space 1 is introduced into the isobaric space 9 from the isobaric space side opening 17, and thereby the isobaric space 9 and the outer periphery of the PC panel communicated therewith. It is possible to maintain the isobaric space 10 at a constant pressure with the outside air. At this time, since the openings 16 and 17 are formed over the entire length of the lower frame of the sash 2, the opening area can be maximized and the outside air can be sufficiently introduced even when the volumes of the equal pressure spaces 9 and 10 are large. Each of the spaces 9 and 10 can be reliably maintained in a state of equal pressure with the outside air. Further, since the areas of the openings 16 and 17 are not changed according to the size of the panel 1, the outside air introducing structure of the present embodiment can be commonly used for the panels 1 of various sizes. Furthermore, in the conventional example shown in FIG. 3, when forming the openings 32 and 33, the calculation of the opening area according to the volume of the isobaric spaces 9 and 10 and the allocation for zigzag processing are performed at the time of design and for each property. It was troublesome to do each of these,
According to this embodiment, the openings 16 and 17 can be formed over the entire length of the lower frame of the sash 2, and the maximum opening area that can be ensured, that is, an area larger than the required opening area can always be secured. Since there is no need for calculation and zigzag processing is not required, layout work is also unnecessary, and design work can be performed extremely easily.

Further, instead of using the conventional draining material 31 made of a hollow aluminum shape, two draining materials 11 and 12 made of a solid material are used. It is possible to eliminate the need for boring the openings 32 and 33, simplify the production process in the factory, improve the productivity, and reduce the cost. Further, since there is no hollow portion, each draining material 11 and water repelling material 12 can be surface-treated to improve weather resistance and prevent deterioration of the material even if rainwater enters the outside air introduction space 15. can do.

Further, the shielding portions 11A and 12B formed on the draining material 11 and the water return material 12 are less restricted in manufacturing as compared with the case where they are formed in the hollow portion, so that they have a large protruding dimension and a complicated shape. can do. For this reason,
Since the meandering flow path 18 can be formed in a complicated and long path, even if rainwater enters from the opening 16 together with the outside air, it can be drained by colliding with the rising wall 12A or the like while passing through the meandering flow path 18, and the like. It is possible to effectively prevent the penetration up to 17. In addition, in the above-described embodiment, since the opening 16 is formed at a position lower than the opening 17, rainwater flows into the isobaric space 9 through the opening 17 unless water of the height is accumulated in the outside air introduction space 15. Does not infiltrate and its water leakage can be almost completely prevented.

Further, in the above-mentioned embodiment, since the splash barrier 7 is provided, rainwater that has infiltrated from the sealing material 5 can be waterproofed by the splash barrier 7 part, and the leakage of water to the sealing materials 6 and 8 can be surely prevented. You can Also at this time, since the sealing material 5 is located at a position lower than the sealing materials 6 and 8, the rainwater does not leak unless the height of rainwater is accumulated in the isobaric space 9. It is possible to reliably prevent water leakage to the.

The present invention is not limited to the above-mentioned embodiments, but includes modifications and improvements as long as the object of the present invention can be achieved. For example, the outside air introduction structure of the present invention is not limited to being provided in the lower frame portion of the sash 2 as in the above-described embodiment, but may be provided in the upper frame portion of the sash 2 or in the upper and lower frames respectively. However,
Since the lower frame portion of the sash 2 is provided with a drainer, it is advantageous in that it is difficult for rainwater to blow into the outside air side opening 16.

The shape, number, etc. of the shielding portions are not limited to those in the above-mentioned embodiment, and one or more shielding portions may be formed on at least one of the upper shape member and the lower shape member. The appropriate shape may be set appropriately for implementation. At this time, according to the present invention, since the outside air introduction space 15 is configured by two shape members, the shape of the shield portions 11A and 12B can be complicated, and a plurality of shield portions are provided in each shape member and combined. This is advantageous in that the meandering flow path 18 can be formed in a complicated shape and the water leakage can be reliably prevented. Furthermore, the splash barrier 7 and the connecting member 13 are not always necessary, and may be appropriately provided for implementation. In particular, the connecting member 13 may be provided to prevent bending when the water return member 12 has a long dimension and the water return member 12 bends due to the elastic force of the seal material 5 or the splash barrier 7.

As the upper and lower profile members,
It is not limited to the one using the draining material 11 and the water return material 12 as in the above-mentioned embodiment, but the upper frame and the lower frame of the sash 2 may be used. Further, the present invention is applicable not only to the PC panel 1 but also to panels of various materials provided with the sash 2.

[0021]

As described above, according to the present invention, since the outside air introducing space is constituted by the two shape members made of solid material, it is possible to improve productivity by eliminating the need for drilling and to perform surface treatment. Therefore, the weather resistance can be improved. Also, since the outside air side opening and the constant pressure space side opening can be formed to fill the width of the aluminum sash (joint), sufficient outside air can be introduced, and even if the panel size is large and the volume of the constant pressure space is large, the outside air side can be reliably Can be maintained at a constant pressure.

[Brief description of drawings]

FIG. 1 is a front view showing a part of a curtain wall to which the present invention is applied.

FIG. 2 is a vertical cross-sectional view showing an outside air introducing structure according to an embodiment of the present invention.

FIG. 3 is a vertical cross-sectional view showing an outside air introduction structure of a conventional example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 PC panel 2 Sash 5 Sealing material for rain barrier 6,8 Sealing material for wind barrier 9,10 Isobaric space 11 Draining material which is an upper shape material 12 Water turning material which is a lower shape material 11A 1st shielding part 12B Second shielding part 15 Outside air introduction space 16 Outside air side opening 17 Isobaric space side opening 18 Meandering flow path

Claims (1)

[Claims] 1. A curtain wall comprising a plurality of panels (1), which is provided on at least one of an upper side and a lower side of a fitting (2) provided on the panel (1) and is formed on an outer periphery of the panel (1). Equal pressure space (9), (1
0) An outside air introduction structure for introducing outside air into the upper shape member (11) formed according to the width dimension of the fitting (2).
And a lower profile (12) arranged in parallel to the upper profile (11) and separated by a predetermined dimension, and at least one of the upper profile (11) and the lower profile (12) is The outside air introduction space (15) has an outside air side opening (16) and an equal pressure space side opening (17) toward the outside air introduction space (15) formed between the upper shape member (11) and the lower shape member (12). The outside air introduction structure in the curtain wall, which is characterized in that shield portions (11A) and (12B) that shield a straight path (19) connecting (1) to (4) are provided in a protruding manner.