JPS6187049A - Rain closing mechanism in curtain wall - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a curtain wall rain cover mechanism formed by sequentially attaching curtain wall units assembled with frames, surface materials, etc. in the vertical and horizontal directions on site. It is something.

Conventionally, this type of rain closure used seals to fill the joints between units, and the adhesive force of the seals maintained watertightness, but with this method, watertightness was maintained depending on the material of the seals and the quality of the on-site seal construction. There are problems in that there are variations in performance, and it is nearly impossible to completely apply the seal over the entire length, making it difficult to obtain a perfect seal function. Further, there were also problems such as peeling and breakage due to deterioration of the seal, or stress being applied to the seal due to thermal expansion and contraction of the curtain wall, resulting in peeling and breakage of the seal. As described above, with conventional rain closures of this type, there is a great deal of concern about variations in seal performance and long-term performance maintenance, so improvements in this regard are currently desired.

As an improvement to this, a so-called open joint type curtain wall was proposed that utilized the equal pressure principle. As shown in Figures 4 and 5,
A horizontal space C is formed between the upper and lower units a and b, a vertical space d is formed between the left and right units, outside air is introduced into the horizontal space C, and the horizontal space C and the inside and outside are sealed with sealants e and f. By making the closed vertical space d equal to the outside pressure,
This is an attempt to improve watertightness.

In this case, the horizontal space C forms a hanging wall g from the outdoor surface of the upper unit a, and a rising wall from the indoor surface of the lower unit b, and the upper and lower units a, b and the hanging wall g, A horizontal space C is formed between the rising wall, a seal i is applied between the rising wall and the upper unit 8, and a gap j is formed between the hanging wall g and the lower unit 5 to serve as an outside air introduction port. Ta.

In this case, if raindrops adhere to the sealing material i, water leakage will occur when the pressure in the horizontal space C becomes higher than the pressure inside the room, so the sealing material i should be positioned higher than the gap j. I had to punish him. Therefore, it is necessary to form tall hanging walls and rising walls at the upper and lower ends of the unit, which makes the structure of the unit extremely complicated.
The workability was also poor. Furthermore, the rainwater splashes that have flown in from the gap j with kinetic energy are completely absorbed into the seal part i.
It was also difficult to guarantee that this would not be achieved.

This invention was made in view of the above circumstances.

A continuous horizontal space and vertical space are formed between the upper and lower and left and right units that are arranged continuously in the vertical and horizontal directions, and the indoor side of the horizontal space is sealed with a sealant, and the outdoor side is opened to the outside air. The vertical space is sealed inside and out with sealant.
A drainage material is provided in the horizontal space to cross the vertical space to divide the vertical space into upper and lower parts, and this drainage material is used to form a curtain wall that covers the outdoor side of the sealing material provided on the indoor side of the horizontal space. It provides a watertight structure.

This prevents and drains rainwater, etc. from entering the room from the outside based on the principle of equal pressure.

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

Figure 2 shows opening unit A and spandrel unit B.
The opening unit A includes a glass 1 which is a surface material, and an upper frame 2 which surrounds the glass 1. A plurality of unit groups consisting of a lower frame 3 and a vertical width <4, 4 are arranged in series in the horizontal direction, and the upper frame 2 and lower frame 3 each have anchors 5, 5 and bolts 6.
．． It is fixed to the frame 7 via 6.

The eight opening units constructed in this manner are laterally connected to each other via the joint part battens 8 as shown in FIG. At this time, the joint part batten 8 is formed into a substantially H-shaped or square-shaped cross section, and each of its four legs 8a, 8a,
A groove 8a' is provided for attaching a tight material to the tip of the . The vertical space C formed in the space C is sealed from the outside air. Further, the vertical space C and the interior wall are sealed by a sealing material 9'' attached to the indoor groove 98'' of the vertical frame 4.4.

On the other hand, in the vertical direction of the opening unit A, a horizontal space continuous with the vertical space C is formed between the vertically adjacent units 1, and this horizontal space is arranged on the side of the room. The outdoor space is sealed with sealing materials 16 and 17, and the outdoor space is in communication with the outside as will be described later. In this horizontal space, a draining material 10 is disposed between the lower frame 3' or the upper frame 2' of the adjacent spandrel unit B. The draining material 10 is disposed continuously across the vertical space C, as shown by the broken line in FIG.

This draining material 10 is installed in a first
A wall portion 10a, an inclined portion 10b protruding downward from approximately the center of the first wall portion 10a toward the outdoor side, and an inclined portion 10b protruding upward from the inclined portion 10b. A third wall 10d protrudes downward from the inclined part 10b on the outdoor side of the second wall 10c, and a third wall 10d which extends downward from the tip of the inclined part 10b. The fourth wall portion 10e protrudes toward the upper end of the first wall portion 10a. A locking part 10a'' is engaged with the lower end of the frame 3 or the lower frame 3' of the spandrel unit B, and is formed at the lower end of the first wall part 10a and the tip or lower end of the third wall part 10d. The locking portion 10d' engages with the upper frame 2 or the upper arm <2' of the spandrel unit B.

As described above, a vertical space C and a horizontal space are formed around the entire circumference of each unit A or B. These spaces C and D are air introduction holes 12° 12' provided in the hanging walls 3a and 3a' of the lower frame 3 or 3' that covers the outdoor side of the draining material 10, the upper frame 2 and the lower frame 3', A slit-like gap between the lower frame 3 and the upper frame 2' communicates with the outside, and the inside of each space C, D is formed to have the same pressure as the outside air pressure.

In addition, drainage holes 13 and 14 are provided in the inclined part tab of the draining material 10 and the lower part of the second wall part 10c, respectively.
Rainwater that has entered the horizontal space through these drainage holes 13 and 14 is drained to the outside. In addition, rainwater falling from the drainage hole 14 falls on the upper surface of the upper frame 2 or 2', flows in the longitudinal direction, falls within the vertical space C, reaches the lower horizontal space, and is discharged to the outside from there. . Further, an air hole 15 is provided in the lower part of the first wall portion 10a, and the air hole 15 allows the sealing members 16, 17, which are attached to the interior of each unit A and B, to engage with each other and the first The space E formed between the wall 10a and the wall 10a is similarly communicated with the outside to prevent rainwater from entering the space E, or even if rainwater does enter, the same pressure principle as described above is used to prevent rainwater from entering the space E. It is designed so that it can be discharged to the outside.

According to the embodiment of the rain cover mechanism of the present invention configured as described above, a draining material is provided between each curtain wall unit A and B, which is continuous horizontally and crosses each vertical space to divide the vertical space into vertical parts. 10, and the left and right curtain wall units A, A are provided with vertically continuous joins 1 to 10.
A vertical space C and a horizontal space that communicate with each other are formed around the entire circumference of each unit A and B by interposing a section plate 8, and these spaces C and D are communicated with the outside air. Since the inside of spaces C and D are formed at the same pressure as the outside pressure, it is possible to prevent rainwater etc. from entering the room from outside due to the equal pressure principle, and in the event that rainwater enters into the spaces C and D by any chance. Even if there is rainwater, it can be quickly drained outside. Moreover, the construction is carried out by each curtain wall unit A, which is assembled on site.
, B, it is extremely simple, and the construction time can be significantly shortened compared to construction using conventional sealing materials.

As explained above, according to the rain closure mechanism of the present invention, since the horizontally continuous space is communicated with the outdoor wall and the pressure is made equal to the outside pressure, all water intrusion is prevented due to the pressure difference. In the unlikely event that rainwater enters due to kinetic energy, etc., it can be blocked by the draining material and drained immediately. Therefore, as described above, safe watertight performance is maintained without rainwater hitting the sealing material on the interior walls. It is possible to do so.

There is no variation in the performance of the seal, unlike with conventional rain cover mechanisms that use sealants, and even if there are gaps in the indoor sealant due to long-term use or poor installation, the drainer will prevent rainwater from leaking. This prevents water from leaking into the indoor windows, making it possible to maintain a stable rain protection function over a long period of time.

Also, when compared with the conventional example shown in Figures 4 and 5,
In the conventional example, it is necessary to create a large difference in height between the gap formed on the outdoor side of a horizontally continuous space, which serves as an outside air inlet, and the seal formed on the indoor side. However, according to the present invention, this can be done with almost the same height, and there is no need to form hanging walls or rising walls at the upper and lower ends of the unit. This makes the structure of the units 1 to relatively simple and improves workability.

Further, according to the present invention, since the indoor sealing material portion at the intersection of the vertical and horizontal spaces of each curtain unit, where gaps are particularly likely to occur, is covered with a drainage material, water leakage from this portion is eliminated. Furthermore, even if water leaks in the vertical space for some reason, it has the unique effect of being able to drain water to the outside at certain heights because the vertical space is divided into units by the drainage material.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view of an embodiment of the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is a schematic front view of an embodiment of the present invention.
FIGS. 4 and 5 are sectional views taken along the line (2), and are explanatory views showing conventional examples. In the figure: 8 Opening unit B Spandrel unit C Vertical space D Horizontal space L Glass 2.2' Upper frame 3.3' Lower frame 4 Vertical frame 5 Anchor 6 Bolt 7 Frame 8 Joint part batten 8a Leg part 88'' Tight material installation groove 9 Tight material 10 Draining material 10a First wall part 10a" Tight material installation iF+W10a"
Locking part 10b Inclined part 10c Second wall part 10d Third wall part 10d' Locking part 10e Fourth wall part 11 Material to tie 1 12.12' Air introduction hole 13, l/l Drain hole 15 Air Holes 16 and 17 are sealing materials. Patent applicant Nippon Light Kinku Co., Ltd. Agent Patent attorney Hiroshi Ishiyama Figure 1 Figure 3

Claims (1)

[Claims] In a curtain wall in which a plurality of curtain wall units are installed adjacent to each other, a horizontal space that continues horizontally is formed between the upper and lower sides of the curtain wall units, and the horizontal space is formed between the left and right sides of the curtain wall units. The horizontal space communicates with the indoor wall and forms a continuous vertical space, and the horizontal space seals the indoor wall with a sealing material and opens the outdoor wall to the outside air, and the vertical space connects the indoor wall and the outdoor wall. The horizontal space is sealed with a sealing material, and a draining material that crosses the vertical space is provided in the horizontal space to divide the vertical space into upper and lower parts. A rain control mechanism for a curtain wall covered with cotton.