JPS624499B2 - - Google Patents

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 into units 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 units with an irregularly shaped seal, and maintaining watertightness through the adhesive force of this seal. There is a problem that the performance varies depending on the quality of the construction, and it is almost impossible to perform complete construction over the entire length of the seal construction, making it difficult to obtain a perfect sealing 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, outside air is introduced into the horizontal space c through a gap j, and thereby the horizontal space c and sealing material e inside and outside,
This is intended to improve watertightness by making the vertical space d closed by f equal to the outside pressure.

In this case, the vertical space d is either closed on the inside and outside with amorphous sealing materials f and e as shown in Fig. 5a, or the inside of the room is closed with an amorphous sealing material or molded sealing material f' as shown in Fig. 5b. These were formed by fitting a baffle material e' into grooves k and k formed at the ends of the vertical frame of the unit.

In the case of Fig. 5a, the outdoor wall sealing material e peels off and breaks due to aging, similar to the conventional example.
Since the outdoor side of the sealing material e is covered with rainwater during rain, rainwater can enter into the vertical space d from the peeled or broken part of the sealing material, and further into the room from the indoor side sealing part. There were concerns about water leakage.
Also, in the case of Fig. 5b, the outside of the bulk material e' is covered with rainwater, and the outside air is introduced into the vertical space d' through the horizontal space, so that the inside of the space d' is constantly affected by changes in wind pressure. Because it is difficult to keep the pressure always equal to the changing external pressure (the higher the height of each unit, the more difficult it becomes), it is difficult to completely cut off rainwater from entering the space d', There was a risk that the rainwater that had entered the space d' would further leak into the room from the indoor seal part f'.

This invention was made in view of the above circumstances, and is 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 an open side on the outdoor side to introduce outside air. A vertical space is formed by sealing the indoor wall with a sealant, and between the left and right units, an outdoor wall member, an indoor wall member, and a member connecting the outdoor wall member and the indoor wall member are formed. Attach the batten to the joint part of the construction, close the space between the units by packing the tips of the outdoor and indoor side members, close the vertical space outside of this batten with the outdoor side member, and close the indoor part of the batten to the outside of the vertical space. The purpose is to provide a rain control mechanism for a curtain wall that divides a vertical space into two parts.

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 a joint batten 8 as shown in FIG. At this time, the joint part eye plate 8 is an outdoor wall member 8-1, an indoor wall member 8-2, and a member 8 that connects the outdoor wall member and the indoor wall member.
-3, the cross section is formed into a substantially rough shape. 4 of the outdoor side member 8-1 and indoor side member 8-2
A vertical space C is formed between the main vertical frames 4 of each unit A through a packing 9 attached to these grooves 8a'. is maintained watertight, and the outdoor side member 8-1 of the batten 8 closes the exterior of the vertical space C, and the indoor side member 8-2 of the batten 8 closes the vertical space C by 2.
It is becoming more and more divided.

On the other hand, in the vertical direction of the opening unit A, each of the units A and B is connected to the lower frame 3' or upper frame 2' of the adjacent spandrel unit B with a drainage member 10 interposed therebetween. In this case, the draining material 10 has a first wall 10a that stands vertically on the indoor side, and a slope that slopes downward from approximately the center of the first wall 10a toward the outdoor side. The inclined portion 10b provided and the inclined portion 10
A second wall portion 10c protrudes upward from b.
A third wall portion 10d protrudes downward from the inclined portion 10b on the outdoor side of the second wall portion 10c, and a fourth wall portion protrudes downward from the tip of the inclined portion 10b. A tight material 11 is installed in a tight material mounting groove 10a' formed at the upper end of the first wall portion 10a.
is engaged with the lower end of the lower frame 3 or the lower frame 3' of the spandrel unit B, and the first wall 1
It is connected to the upper frame 2 or the upper frame 2' of the spandrel unit B by a locking part 10a'' formed at the lower end of the third wall part 10a and a locking part 10d' formed at the tip or lower end of the third wall part 10d. A horizontal space D is formed between each unit A and B connected with the draining material 10 interposed in this way, and this horizontal space D is communicated with the above-mentioned vertical space C. .

Therefore, a vertical space C and a horizontal space D are formed around each unit A or B.
These spaces C and D are the hanging walls 3a and 3 of the lower frame 3 or 3' that covers the outdoor side of the draining material 10.
The air introduction holes 12, 12' provided in a' and the slit-shaped gaps between the upper frame 2 and the lower frame 3', and between the lower frame 3 and the upper frame 2' communicate with the outside, and both spaces C , D are formed so that the pressure is equal to the outside 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 into the horizontal space D through these drainage holes 13 and 14 is drained to the outside. It is designed to be discharged to 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, and flows into the lower horizontal space D.
and from there it is discharged to the outside. 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 1, which are attached to the inside of each unit A and B, to engage with each other.
Similarly, the space E formed between 6 and 17 and the first wall portion 10a is communicated with the outside to prevent rainwater from entering the space E, or even if rainwater does enter, the above-mentioned method is provided. It is designed to be able to be discharged to the outside using a similar equal pressure principle.

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 A vertically continuous joint part batten 8 is interposed to form a vertical cavity C and a horizontal space D that communicate with each other around the entire circumference of each unit A and B, and these spaces C and D are communicated with the outside air. Since the inside of these 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 principle of equal pressure, and in the event that these spaces C, Even if rainwater enters into D,
This allows the rainwater to be quickly drained outside. Moreover, the construction involves each curtain wall unit A, which is assembled on site.
Since it is only necessary to assemble between B and 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, a vertical space is formed between the left and right units with the indoor side sealed with a sealant, and between the left and right units there is an outdoor wall member and an indoor side wall. Attach the joint plate of the shape formed by the members and the member connecting the outdoor wall member and the indoor wall member, and close the space between the units by packing the tips of the outdoor wall member and the indoor wall member. Since it has a structure in which the outside of the vertical space is closed off by the outside side of the batten, and the vertical space is divided into two by the inside of the batten, the outside of the space where rainwater can easily reach is blocked off by packing. The inside of it is also covered with the inner side of the batten. This results in
This has the effect that rainwater rarely reaches the sealing material that seals the vertical space and the room.

[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, 5 a, and 5 b are explanations showing conventional examples. It is a diagram. 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
-1...Outdoor wall member, 8-2...Indoor wall member, 8a...leg, 8a'...groove, 9...packing, 10...draining material, 10a...first wall Part, 10a'...Tight material mounting groove, 10a''...
Locking part, 10b... Inclined part, 10c... Second wall part, 10d... Third wall part, 10d'... Locking part,
10e...Fourth wall part, 11...Tight material, 1
2, 12'... Air introduction hole, 13, 14... Drain hole, 15... Air hole, 16, 17... Sealing material,
It is.

Claims (1)

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