JPS6187050A - 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 curtain wall was sealed from rain by filling the joints between the units with irregularly shaped seals, and maintaining watertightness through the adhesive strength of this seal, but this method was difficult due to the seal material and on-site seal construction. There is a problem that performance varies depending on the quality of the seal, and it is almost 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, and outside air is introduced into the horizontal space C through a gap j, thereby sealing the horizontal space C and the inside and outside with a sealing material e. , by making the vertical space d closed by f equal to the outside pressure.

This is an attempt to improve watertightness.

In this case, the vertical space d is either closed inside and out with an irregularly shaped sealing material fee as shown in Fig. 5(a), or the inside of the room is closed with an irregularly shaped sealing material or a molded sealing material f' as shown in Fig. 5(b). The outdoor side was formed by fitting a baffle material e into a groove formed at the end of the vertical frame of the unit.

In the case of FIG. 5(a), the outdoor sealing material e peels off and breaks due to aging, similar to the conventional example, and the sealing material e
Since this is the part of the outdoor area that is covered with rainwater during rain, there is a concern that rainwater may enter the vertical space d from areas where the sealing material has peeled off or broken, and that water may leak further into the indoor space from the indoor side seal area. Ta. Also, in the case of Fig. 5(b), the outside of the baffle material e' is covered with rainwater, and the outside air is introduced into the vertical space d' through the horizontal space, so the wind pressure changes in the space d'. It is difficult to maintain a constant pressure equal to the constantly changing external pressure (the smaller the height of each unit is, the more difficult it becomes), so it is difficult to completely cut off rainwater from entering the space d'. There was a risk that the rainwater that had entered the vertical space d' would further leak into the room through the indoor seal part f'.

This invention was made in view of the above circumstances.

The horizontal space between the upper and lower curtain wall units 1 is sealed with a sealant on the indoor side, and the indoor side is sealed with a sealant between the left and right units in a curtain wall where outside air is introduced by opening the outdoor side. A vertical space is formed between the left and right units, and a joint part plate with a shape formed by an outdoor wall member, an indoor wall member, and a member connecting the outdoor wall member and the indoor wall member is installed between the left and right units. The tips of the outdoor side members and the indoor side members close the unit by packing, the outdoor side members of this batten block the outside of the vertical space, and the indoor side members of the batten divide the vertical space into two. The purpose is to provide a rain control mechanism for curtain walls.

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 as a surface material, an upper frame 2, a lower frame 3, and a vertical width <4, which surrounds the four peripheries of the glass 1. A plurality of unit groups consisting of 4 are connected in the horizontal direction, and the upper frame 2 and lower frame 3 have anchors 5, 5 and bolts 6, respectively.
．． It is fixed to the frame 7 via 6.

The opening units A 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 attached to the outdoor wall member 8-
1. The indoor wall member 8-2 and the member 8-3 connecting the outdoor wall member and the indoor wall member form a substantially shaped cross section. The outdoor side member 8-1 and the indoor side member 8-
Each of the four legs 8a of 2.

Concave grooves 8a' are provided at the tips of 8a..., and these concave grooves 8a
The vertical hollow plate C formed between the main vertical frames 4 of each unit A is maintained watertight through the packing 9 attached to the outer wall member 8-1 of the batten 8. closes the outside of the vertical space C, and the interior side member 8-2 of the batten 8 closes the vertical space C.
It is designed to divide into two parts.

On the other hand, in the vertical direction of the open bottom unit A, the lower frame 3' or the upper frame <2 of the adjacent spandrel unit B
The units A and B are connected to each other through a draining material 10 between them. In this case, the water cutter 10 has a first wall portion 10a vertically installed on the inside of the room, and a
An inclined part 10b protrudes downward from approximately the center of the wall part 10a toward the outdoor side, and this inclined part 1
a second wall portion 10c protruding upward from 0b;
Slanted portion 10 on the outdoor side from this second wall portion 10c
The third wall portion 10d projects downward from the tip of the inclined portion 10b, and the fourth wall portion 10e projects downward from the tip of the inclined portion 10b. The tight material attachment formed at the upper end of 10a is engaged with the lower end of the lower frame 3 or the lower frame 3' of the spandrel unit B by the tight material 11 installed in the groove 108', and
A locking portion 10a” formed at the lower end of the third wall portion 1
It is adapted to engage with the upper frame 2 or the upper frame 2' of the spandrel unit B by a locking portion 10d' formed at the tip or lower end of 0d.

A horizontal space is formed between each of the units A and B connected with the draining material 10 interposed in this way, and this horizontal space communicates with the vertical space C described above.

Therefore, there is a vertical space C around the entire circumference of each unit A or B.
and a lateral space will be formed. These spaces C9D include air introduction holes 12 and 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, the lower frame 3', and the lower frame. The rain spaces C and D are communicated with the outside through a slit 1-shaped gap between the rain spaces C and D and the upper frame 2', and the insides of the rain spaces 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.
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 horizontally continuous draining material IO is interposed between each curtain wall unit A and B, and the left and right curtain wall units A and A Each unit A is provided with a vertically continuous joint portion plate 8 interposed therebetween.

A vertical space C1 and a horizontal space are formed around the entire circumference of B, and these spaces C and D are communicated with the outside air, and the inside of these spaces C and D is formed to have the same pressure as the outside air pressure. Therefore, it is possible to prevent rainwater etc. from entering the room from the outside by using the equal pressure principle, and even if rainwater does enter into these spaces C and D by any chance.

This allows the rainwater to be quickly drained outside.

This is what I did. Moreover, 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 installation time can be significantly shortened compared to installation using conventional sealing materials. can.

As explained above, according to the rain closure mechanism of the present invention, a vertical space is formed between the left and right units with the indoor sides sealed with a sealant, and between the left and right units there is an outdoor wall member and an indoor wall. Attach the I-shaped joint part plate formed by the member and the member connecting the outdoor and indoor side members, and seal the ends of the outdoor and indoor side members between the units with packing. Since it has a structure in which the exterior side of the batten blocks the outside of the vertical space, and the interior side of the batten divides the vertical space into two, the outside of the space, where rainwater can easily reach, is closed off by the packing. The inside of it is also covered with the inner part of the batten. Therefore, even if the pressure in the vertical space C cannot sufficiently follow changes in external pressure due to changes in wind pressure, etc., the pressure in the two-class space, which is divided into two by the inner side member of the joint part batten, will be Same pressure. Therefore, even if rainwater enters through the packing formed on the outdoor wall member, there will be no pressure difference between the two spaces divided into two as described above, so the rainwater will enter the inner side of the packing attached to the indoor wall member. Rainwater will not enter.

This seals the vertical space and the interior.

[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.
4, 5 (a), and 5 (
b) is an explanatory diagram showing a conventional example. In fig. 8 Opening unit B Spandrel unit C, D, E Space ■ Glass 2.2° Upper frame 3.3/Lower frame 4 Vertical frame 5 Anchor 6 Bolt 7 Frame 8 Joint part batten 8-1 Outdoor wall member 8 -2 Indoor wall member 8a Leg portion 8a' Concave groove 9 Packing 10 Draining material 10a First wall portion 108' Tight material mounting groove 10a''
Locking portion 10b Slanted portion 10c Second wall portion 10d Third wall portion 10d' Locking portion 10e Fourth wall portion 11 Tight material 12.12' Air introduction holes 13, 14 Drain hole 15 Air holes 16, 17 It is a sealing material. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] In a curtain wall in which the horizontal space between the upper and lower curtain wall units is filled with a sealant on the indoor side and outside air is introduced by opening the outdoor side, there is an indoor side between the left and right units. A vertical space sealed with a sealant is formed, and between the left and right units there are an outdoor wall member (8-1), an indoor wall member (8-2), and a member that connects the outdoor wall member and the indoor wall member ( 8-3) Attach the joint part batten of the shape formed by 8-3), close the space between the units with packing at the tips of the outdoor side member and the indoor side member, and use the outdoor side member of this batten to close the outside of the vertical space. A rain control mechanism in a curtain wall that blocks the roof and divides the vertical space into two with a batten interior wall member.