JPS6323338B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention is a curtain wall that is formed by sequentially attaching curtain wall units assembled into units with frames, surface materials, etc. in the vertical and horizontal directions on site. This relates to a curtain wall rain closing mechanism.

[Prior technology] Conventionally, this type of rain closure has filled the joints between units with a seal, and the adhesive force of this seal has maintained watertightness, but with this method, the seal material and There is a problem in that performance varies depending on the quality of seal construction on site, and it is nearly impossible to perform complete seal construction over the entire length of the seal construction, making it difficult to obtain a perfect seal function. Further, there were problems such as peeling or breaking 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 or breaking 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. This is shown in Figures 4 and 5.
As shown in the figure, 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, and outside air is introduced into the horizontal space c, thereby connecting the horizontal space c and the inside and outside. By making the vertical space d closed with sealing materials e and f equal to the outside pressure,
This is an attempt to improve watertightness.

[Problem that the invention seeks to solve]

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 h from the indoor surface of the lower unit b,
A horizontal space c is formed between the upper and lower units a and b, the hanging wall g, and the rising wall h, a seal i is placed between the rising wall h and the upper unit a, and an outside air inlet is provided between the hanging wall g and the lower unit b. The gap j was formed as follows.

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 in the indoor side k, so the sealing material i should be positioned higher than the gap j. I had to punish him. For this reason, it was necessary to form tall hanging walls (g) and rising walls (h) at the upper and lower ends of the unit, which made the structure of the unit extremely complicated and also resulted in poor workability. Furthermore, it is difficult to guarantee that rainwater droplets that have kinetic energy and fly in from the gap j will not completely reach the seal part i.

[Means for solving problems]

This invention was made in view of the above circumstances, and in a curtain wall in which a plurality of curtain wall units are installed adjacent to each other, the interior side of the horizontal space that is continuous horizontally between the upper and lower sides of the curtain wall units is sealed with a sealing material. The curtain wall is sealed, the outdoor side is opened to the outside air, and a draining material is disposed in the horizontal space, and the outdoor side of the sealing material is covered with the draining material, and a curtain wall is formed between the right and left sides of the curtain wall. The vertical space communicating with the horizontal space is sealed on the indoor side with a sealing material and provided with a rain cover mechanism in a sealed curtain wall, which is formed by attaching a joint batten on the outdoor side.

[Effect]

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

Figure 2 shows the rain protection structure of the part that connects the opening unit A and the spandrel unit B. Waku 2,
A plurality of units consisting of a lower frame 3 and vertical frames 4, 4 are arranged in series in the horizontal direction, and the upper frame 2 and lower frame 3 are fixed to the frame 7 via anchors 5, 5 and bolts 6, 6, respectively. There is.

The opening units A constructed in this manner are laterally connected to each other via joint battens 8 as shown in FIG. At this time, the joint part eye plate 8 is formed in a substantially H-shaped or I-shaped cross section, and its 4
A tight material attachment groove 8a' is provided at the tip of each leg portion 8a, 8a..., and the main longitudinal frame 4 of each unit A The vertical space C formed between them is sealed from the outside air. Furthermore, the vertical space C and the interior space are sealed by a sealing material 9'' attached to the groove 9a'' on the interior side of the vertical frames 4,4.

On the other hand, in the vertical direction of opening unit A,
A horizontal space D that is continuous with the vertical space C is formed between vertically adjacent units, and this horizontal space D is sealed from the outdoor side by sealing materials 16 and 17 placed on the indoor side, so that the outdoor A draining material 10 is disposed within the horizontal space D between the lower frame 3' or the upper frame 2' of the adjacent spandrel unit B. Further, the joint batten 8 is the second
It is placed on the draining material 10 as shown by the dotted line in the figure. In this case, the draining material 10 includes a first wall portion 10a that stands vertically on the inside of the room, and a
an inclined part 10b protruding downward from approximately the center of the wall part 10a toward the outdoor side;
A second wall portion 10c projects upward from the inclined portion 10b, and a third wall portion projects downward from the inclined portion 10b on the outdoor side of the second wall portion 10c. 10d, and a fourth wall portion 10e projecting downward from the tip of the inclined portion 10b.
The lower frame 3 or the spandrel unit is configured by the tight material 11 installed in the tight material installation groove 10a' formed in the upper end of the first wall portion 10a. A locking part 10a'' is engaged with the lower end of the lower frame 3' of B and is formed at the lower end of the first wall part 10a, and a locking part 10d' is formed at the tip or lower end of the third wall part 10d. It is adapted to engage with the upper frame 2 or the upper frame 2' of the spandrel unit B.

As mentioned above, spaces C and D are formed around each unit A or B. The spaces C and D are air introduction holes 12 and 12' provided in the hanging walls 3a and 3a' of the lower frame 3 or 3' that cover the outdoor side of the draining material 10, and the upper frame 2, the lower frame 3', and the lower frame 3'. The slit-shaped gap between the frame 3 and the upper frame 2' communicates with the outside, and the air insides C and D are formed to have the same pressure as the outside air pressure.

In addition, drainage holes 13 and 14 are provided in the lower part of the inclined part 10b and the second wall part 10c of the draining material 10, respectively, and the rainwater that has entered the space D through these drainage holes 13 and 14 is drained to the outside. It is designed to be discharged. 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 space C, and reaches the lower space D.
From there it is discharged to the outside. Also, the first wall portion 10
An air hole 15 is provided in the lower part of the wall 10a, and this air hole 15 allows the sealing members 16 and 17, which are attached to the inside of each unit A and B and which are engaged with each other, to connect with the first wall portion 10a. The space E formed between them is similarly communicated with the outside to prevent rainwater from entering the space E, or even if rainwater should enter, it can be discharged to the outside using the same pressure principle as described above. There is.

According to the embodiment of the rain protection mechanism of the present invention configured as described above, the horizontally continuous drainage material 10 is interposed between each of the curtain wall units A and B, and the left and right curtain wall units A and A With a joint part eye plate 8 interposed between them,
Spaces C and D that communicate with each other are formed around the entire circumference of each unit A and B, and these spaces C and D are communicated with the outside air, and the inside of spaces C and D is formed at the same pressure as the outside air pressure. Therefore, it is possible to prevent rainwater, etc. from entering the room from outside using the equal pressure principle, and even if rainwater does enter spaces C and D, it can be quickly drained outside. This is what I did. Furthermore, the installation is extremely simple, as it only needs to be assembled between each curtain wall unit A and B, which are assembled on site, and the construction time can be significantly shortened compared to construction using conventional sealing materials. can.

〔Effect of the invention〕

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, the rainwater does not hit the sealing material on the indoor wall, ensuring safe watertight performance. It is possible to maintain the performance of the seal, and there is no variation in the performance of the seal like in rain cover mechanisms using conventional sealing materials.In addition, there may be gaps in the interior sealing material due to long-term use or poor installation. Even if rainwater occurs, the draining material and joint part battens will prevent rainwater from entering.
It is possible to prevent water from leaking into the interior of the room, and to maintain a stable rain control function over a long period of time. By doing so, it is also possible to obtain the effect of making it easier to attach the joint part battens.

Also, when compared with the conventional example shown in Figs. 4 and 5, in the conventional example, there is a gap formed on the outdoor side of the horizontally continuous space that serves as an outside air inlet, and a gap between the indoor and outdoor spaces. In the past, it was necessary to form a large height difference between the seals formed at the upper and lower ends of the unit, but with this invention, this can be done with almost the same height, and the upper and lower ends of the unit There is no need to form tall hanging walls or rising walls. This makes the structure of the unit relatively simple and improves workability.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view of an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along the line --- in FIG. 1, FIG. 3 is a cross-sectional view taken along the -- line in FIG. 1, and FIGS. 4 and 5 are explanatory diagrams showing a conventional example. In the figure, A...opening unit, B...spandrel unit, C, D, E...space, 1
...Glass, 2, 2'...Top frame, 3,3'...Bottom frame, 4...Vertical frame, 5...Anchor, 6...Bolt, 7...Structure, 8...Joint part plate , 8
a...Legs, 8a'...Tight material mounting groove, 9...
...Tight material, 9"...Sealing material, 9a"...Groove, 1
0... Draining material, 10a... First wall portion, 10
a'...Tight material mounting groove, 10a''...Locking part,
10b... Slope part, 10c... Second wall part, 10
d...Third wall part, 10d'...Locking part, 10e
... Fourth wall part, 11 ... Tight material, 12,1
2'... Air introduction hole, 13, 14... Drain hole, 1
5...Air hole, 16, 17...Sealing material.

Claims (1)

[Claims] 1. In a curtain wall in which a plurality of curtain wall units are installed adjacent to each other, an indoor side of a horizontal space that is continuous horizontally between the upper and lower sides of the curtain wall units is sealed with a sealing material, and the outdoor area is sealed. The curtain wall is opened to the outside air, and a drainage material is provided in the horizontal space, and the drainage material covers the outdoor side of the sealing material. A rain screening mechanism in a curtain wall, in which the vertical space that communicates is sealed on the indoor side with a sealant and a joint batten is attached on the outdoor side. 2. A rain cover mechanism in a curtain wall according to claim 1, wherein the drainage material is arranged across a vertical space. 3. The drainage material is arranged across the vertical space,
2. A rain cover mechanism for a curtain wall according to claim 1, wherein said joint part batten is placed on said drainage material.