JPS6228254B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides rainwater infiltration prevention that can be applied to unit curtain walls, particularly to double gasket spaces and glass groove outer spaces arranged between units using aluminum profiles. This is related to the intended curtain wall isobaric device.

To explain this invention with reference to drawings, FIG. 1 shows a wall surface of a building using a unit curtain wall using the equal pressure device of this invention, and each unit 1, 2, 3, and 4 are adjacent to each other in a building. It is attached to the surface of the building body with a mounting bracket 30. There is a spacing 9, 10 between adjacent side edges 5, 6 and 7, 8 of each unit, respectively.

This invention forms a hollow hollow part 20 that communicates with the entire circumference inside the side edge of each rectangular unit of the unit curtain wall, and forms a hollow hollow part 20 that communicates with the entire circumference in the middle part of both outer walls of the hollow parts 20 that face each other in the upper, lower, left, and right directions. A fitting groove 15 that opens to the outside air side is formed along the longitudinal direction, and a piece of outside air side gasket 1 is inserted into the fitting groove 15.
1 are air- and water-tightly fixed by one of the fitting portions 14 to seal the space 16 on the outside air side of both side edges, and a fitting groove 15' that opens to the outside air side is formed along the indoor side portion of the opposing outer wall. A sheet of indoor gasket 11' is fixed in the fitting groove 15' with its fitting portion 14 in an air-water tight manner to seal the indoor space 16' on both side edges, and the outside air side gasket 11 and An annular continuous space 33 is formed between the double seals consisting of the indoor gasket 11', and the hollow outer wall 26 at the lower edge of each unit is provided with a part that is closer to the outside air side than the outside air side fitting groove 15. Hollow portions 20 and spaces 33 are formed in the hollow portion outer wall 26 excluding the lower edge.
This is a curtain wall equal pressure device in which an equal pressure through hole 29 is formed to communicate with the curtain wall. As shown in FIG. 2, the gasket 11 for the second floor or half of the first floor is molded using a rubber-like elastic material. This gasket 11 is made by extrusion molding a band-shaped part, molding the vertical and horizontal intersection parts 12 separately, and integrally molding them by press molding so as to connect them.

This gasket 11 has, for example, a curved portion 13 toward the indoor side in order to absorb the displacement of the intervals 9 and 10 at the center of the cross section, and fitting portions 14 which similarly protrude toward the indoor side at both side edges.

On the other hand, two fitting grooves 15, 15' open to the outside air are formed at the left, right, upper and lower side edge portions of each of the rectangular units 1, 2, 3, 4. One fitting groove 15 is formed on the outside air side, and the other fitting groove 15' is arranged on the indoor side. A gap 16 is formed between the side edges of each adjacent unit, and in the illustrated case, a large gap 16 is formed on the outside air side, and a small gap 16 is formed on the indoor side.
6'.

In order to close these gaps 16, 16', gaskets 11, 1 are installed as shown in FIGS. 4 and 5.
1' and insert the respective fitting portions 14 into the fitting grooves 15,
15' to form a double closed structure. In addition, a sawtooth recess 18 is formed in the fitting portion 14 that contacts the inner surface 17 of the fitting groove 15, 15' so that the fitting portion does not easily come out once fitted.

Gasket 11, as mentioned above, is installed in a multi-story building.
11', and a separately molded short gasket (not shown) is applied to the end portions 19, 19 of each gasket strip where they abut, so as to cover both end portions 19, 19, or the upper end portion is provided with a chamber. They may be stacked so as to be attached to the inside and adhered airtightly and watertightly with an adhesive.

In the illustrated embodiment, the frame members of each unit 1, 2, 3, and 4 are made of aluminum, and there is a hollow hollow part 20 inside the side edge that extends all over the country.
and block 22 and packing 2 the glass 21.
Glass outer space 25 when installed with 3 and 24
is formed. The fitting groove 15 on the outside air side is formed along the approximate center of the outer wall 26 of the hollow part 20, and a ventilation hole 27 is formed as appropriate in the part of the hollow part outer wall 26 on the outside air side from the fitting groove 15 on the lower edge 32. Open the day.
The purpose of this vent hole 27 is to quickly equalize the air pressure inside the hollow part 20 when there is a change in the outside air pressure, and the vent holes 27 are made as small and as few as possible.
The vent holes 27 in the lower edge 32 are also for drainage.

Opening holes 29, 29 in the hollow part outer wall 26 excluding the lower edge on the indoor side from the fitting groove 15 and in the partition wall 28 between the hollow part 20 and the glass outer peripheral space 25,
Fluctuations in the outside air, that is, fluctuations in the atmospheric pressure in the hollow portion 20, are immediately transmitted to the space 33 of both gaskets 11, 11' and the glass outer peripheral space 25. Therefore, the fitting groove 15' on the indoor side is formed closer to the indoor side than the through hole 29.

Now, when the external pressure exerted on the outer wall of the building suddenly increases or decreases due to the influence of wind, this change in external pressure is quickly conducted to the gasket space 33 and the glass outer space 25 through the ventilation holes 27 and the communication holes 29.
The gasket 11 and gasket 23 that are in contact with the outside air are not deformed due to fluctuations in the outside air.

Particularly when the wind and rain are strong, there is a risk that rainwater may enter through the joints between the gasket 11 and packing 23 and the unit frame, and other joints 34 with the unit frame that are in contact with the outside air. Since the atmospheric pressure is always equalized, it is possible to block the infiltration of rainwater.

The above-mentioned isobaric effect is, for example, when the outside air has a wind pressure of 0 to 300.
Kg/m ² , in approximately 1 second both spaces 2
5 and 33 became equal pressure.

In this invention, two gaskets 11 and 11' are used to provide a double inner and outer seal at the vertical and horizontal intervals 9 and 10, which are adjacent to and connected to each other in the rectangular units, thereby creating a complete seal between the two gaskets 11 and 11'. It is possible to extremely easily create a space 33 that is annular and continuous vertically and horizontally around each unit.
Further, as a result, fluctuations in the outside air pressure, that is, the air pressure in the hollow portion 20, are immediately transmitted to the space 33 of both gaskets 11, 11' and the glass outer circumferential space 25, and the pressure is equalized.

In particular, the outside air side gasket 11 can be made of a single band-like rubber-like elastic body, and fitting portions 14 are formed on both side edges of the gasket 11, which are connected to both adjacent hollow portions 2.
By easily fitting the fitting grooves 15 formed in the outer wall of 0 from the outside air side, installation and replacement can be carried out simply and quickly. And, it will not be damaged even by fluctuations in outside pressure,
In addition, it can maintain airtightness even when the building shakes (displacement between floors) due to earthquakes, etc., and can withstand use for a long time.

On the other hand, the indoor side gasket 11' is formed in the same manner as the outside air side gasket 11, and has a similar fitting groove 1.
It can be fixed at 5'.

In this way, an annular sealed space 33 is formed that is continuous with the vertical and horizontal intervals 9 and 10 of each rectangular unit.
, it is possible to make an extremely simple isobaric device, and the cost is low because the device has the same shape and fewer types of parts.

[Brief explanation of the drawing]

Fig. 1 is a front view on the outside air side of a curtain wall using the equal pressure device according to the present invention, Fig. 2 is a front view of the gasket, Fig. 3 is an enlarged perspective view of the intersection of the gaskets, and Fig. 4 is the same as Fig. 1. An enlarged longitudinal side view taken along the line (-), FIG.
) is an enlarged cross-sectional side view taken along. In the drawings, numerals 1, 2, 3, and 4 are units;
6, 7, 8 are the side edges, 9, 10 are the intervals, 11,
11' is a gasket, 12 is an intersection part, 13 is a curved part, 14 is a fitting part, 15, 15' are fitting grooves, 16, 16' are gaps, 33 is a gasket space, 25 is a glass outer peripheral space, 27 is a Air vent, 29
is a conduction hole.

Claims (1)

[Claims] 1 A hollow hollow part 20 is formed inside the side edge of each rectangular unit of the unit curtain wall, and a hollow hollow part 20 communicating with the entire circumference is formed, and a hollow part 20 is formed in the middle part of both outer walls of the adjacent hollow parts 20 facing each other in the vertical and horizontal directions in the longitudinal direction. A fitting groove 15 that opens to the outside air side is formed along the fitting groove 15, and a piece of outside air side gasket 11 is fixed to the fitting groove 15 in an air-water tight manner at its fitting portion 14, thereby forming an outside air side gap 16 between both side edges. A fitting groove 15' is formed along the indoor side portion of the opposing outer wall to open to the outside air side, and a piece of indoor side gasket 11' is inserted into the fitting groove 15' at its fitting portion 14. The air and water-tight fixation is performed to seal the indoor space 16' on both side edges, forming an annular continuous space 33 between the double seals consisting of the outside air side gasket 11 and the indoor side gasket 11'. A ventilation hole 27 is formed in the hollow part outer wall 26 at the lower edge at a portion closer to the outside air side than the outside air side fitting groove 15, and the hollow part outer wall 26 excluding the lower edge has a hollow part 20 and a space 33. An isobaric device for a curtain wall, characterized in that an isobaric through hole 29 is formed to communicate with the curtain wall.