JPS59672B2 - Equal pressure mullion structure in curtain wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an isobaric structure for preventing water leakage in a part of a curtain wall where a mullion and a face member are fitted.

Conventionally, as a water leakage prevention structure for curtain walls, a horizontal space extending in the longitudinal direction is formed inside the curtain wall, and an outside air inlet is provided on the outside side of the curtain wall to communicate the horizontal space with outside air. In addition, an isobaric structure that prevents water leakage based on the so-called isobaric principle is known, but an isobaric structure for mullions has not yet been developed.

The present invention aims to provide a new mullion wall isobaric structure that prevents water leakage at the fitting part between the mullion and the face material, ensures watertightness, and is extremely easy to manufacture and process. Its features are a mullion with a side plate fitting groove formed by an outer ribbed edge and an inner ribbed edge, and a vertical side portion of the plate fitted into the plate fitting groove and the The vertical space, which extends vertically in a closed state, is formed by the vertical, outer and inner ribs, and the vertical space is communicated with the outside air through an outside air inlet provided in the outer rib.

The present invention will be described in detail below with reference to the drawings.

In Figure 1, mullions 1... are erected vertically and parallel to each other at appropriate intervals, and 2 mullions 1 and 2 are spaced between adjacent mullions 1 and 1.
... are connected in parallel to each other at appropriate intervals, and out of the vertical rectangular frame formed by these mullions and mullions, a metal plate or a glass plate is installed in the frame of the spandrel part facing the floor 3... At the same time, a transparent panel 4' such as a glass plate is fitted into the frame of the opening that does not face the floor 3.

As shown in the second figure, the mullion main body 1' has outer flanges 6.
6 and the inner flange 7.7 are respectively extended to form U-shaped blind grooves consisting of the substrate 5 and the flange 6.7 on both left and right sides, and the inner flange 7.7
A bracket 9 is welded to a position corresponding to the subbandrel part of the legs 8, 8, and the bracket 9 is attached to an anchor 10 fixed to the floor 3.
It is fixed with bolts 11 and nuts 12.

As shown in the third figure, the cross section of the blind 2 has a hollow rectangular shape, and the face material 4 is inserted into the face material fitting grooves provided on the upper and lower walls 13 and 14 through tight materials 15, 16, and 17, respectively. or 4
The upper or lower lateral sides of ' are fitted respectively, and an inclined transverse bulkhead 18 that is slightly downwardly inclined outward is provided at the middle part of the interior of the interior, and a horizontal space C extending over the entire length of the interior is provided between it and the upper wall 13. form,
Further, a vertical partition 21 extends vertically from the outside of the lower surface of the horizontal partition 18 at a small distance from the front wall 20, and the vertical partition 21 and the front wall 2
0, a small space whose lower end is fully opened to the outside of the panel 4 or 4' is formed, and a plurality of first drain ports 23 communicating with the small space are formed in the horizontal bulkhead 18 at appropriate intervals. It is set apart.

In addition, an auxiliary horizontal wall that divides the small space extends from the middle part of the vertical partition wall 21, and the drain port 23 is also provided on the auxiliary horizontal wall.
A second drain port 24 corresponding to the second drain port 24 is provided.

Both ends of such a mullion 2... are connected to the adjacent mullion body 1.
', 1' are inserted into the open grooves, each open end is fixed to the open grooves via brackets as appropriate, and the open ends are filled with caulking material, and the upper surface of the open ends is filled with caulking material. Install the catch pan 25.

The mullion main body 1' has an outer rib 26 on the inside of its outer flange 6 whose upper and lower ends abut against the vertically adjacent blinds 2, 2.
At the same time, an inner rib 27 is attached to the inside of the inner flange 7, the upper and lower ends of which contact the vertically adjacent blinds 2, 2, respectively, and a face material fitting groove is provided between one end of these outer ribs 26 and inner rib 27. The left or right vertical side of the face material 4 or 4' is held in the groove via tight members 15 and 16, respectively.

As shown in the second figure, the outer rim 26 has auxiliary walls 29 and 30 on the inner and outer surfaces of the outer rim main body wall 28 in the cross section.
, 31, 32, and 33, and the wall 30 is connected to the outer flange 6.
The wall 33 is attached to the locking step 35 of the cubic board 5.
A first vertical space A extending over the entire length of the outer ridge is formed between the outer ridge 26 and the mullion 1, and a first vertical space A extending over the entire length of the outer ridge is formed between the outer ridge 26 and the mullion 1, the inner ridge 27 and the panel 4 or 4'. A second vertical space B, which also extends the entire length of the outer rim, is formed between them,
and a first wall 30 on the inside of the mullion outer flange 6.
A plurality of first outside air introduction ports 36 that communicate the space A with outside air,
Further, a plurality of second outside air introduction ports 37 are provided in the main body wall 28 to communicate the first space A and the second space B.

In FIG. 2, 38 is a screw that fixes the inner rim 27 to the mullion main body 1', and 39 is a sealing material that seals the inner rim 27 and the mullion 1.

The legs 8, 8 at the opening of the mullion 1 are covered with a cover 40, as shown in the fourth figure.

The operation of the equal pressure mullion structure according to the present invention will be explained below along with the overall operation.

The interior of spaces A, B, C, and D instantly becomes equal to the outside air pressure through the outside air inlet 36.37 and the outlet 23.24.

In this case, the drain ports 23 and 24 may be appropriately enlarged to actively introduce outside air.

When introducing outside air as described above, for the mullion side, the outside air first enters the first vertical space A through the first outside air inlet 36, then enters the second vertical space B through the second outside air inlet 37, and Space A
.

B instantaneously becomes equal to the outside pressure, thereby sufficiently preventing the intrusion of rainwater based on the principle of equal pressure.

Also, raindrops with kinetic energy enter the space A from the inlet 36.
However, such raindrops are prevented from entering the space B by the auxiliary wall 32 and the outer rim main body 28, and then flow down the auxiliary wall 32 and the outer rim main body 28 onto the catch pan 25. Then, from the outlet of the catch pan 25, it flows down into the horizontal space C from the face material fitting groove opened in the blind 2, and then flows into the horizontal space C, and then the drain port 23, the space D1, and the drain port 2.
4 and is discharged to the outside.

Atomized water droplets that are not treated in the first vertical space A and enter the second vertical space B from the inlet 37 hit the auxiliary walls 31 and 33 of the outer rim and the inner rim 27 and hit the catch pan 2.
5, and is led to the horizontal space C of the mumu 2 and is discharged through the drain port 23 and the drain port 24 of the space D1.

Therefore, there is no danger of rainwater hitting the tight material 16.39.

In the present invention, in some cases, the first and second vertical spaces A
, B formed in one vertical space can also be implemented.

Further, on both sides of the lower part of each shaft, plate guide blocks 41 and 41 are respectively provided, and the guide blocks 41 are made of synthetic resin, and have inclined surfaces 42 on the side surfaces as shown in figures 5 and 5a, and have fitting grooves 43. It is a block with a vertically extending block, and is attached by fitting the fitting groove 43 into the auxiliary wall 31 with the inclined surface 42 facing the side of the face material fitting groove.

Both guide blocks 41.41 automatically position the facing material in the correct position using the inclined surface 42.42 when the facing material is dropped into the frame from above, and after mounting with the text, the facing material can be easily moved in the event of an earthquake. play the role of deterrent.

The tight material 15 is made of an elastic material such as rubber or synthetic resin, and has three legs 15a extending from a main body that is curved in a substantially arched cross section as shown in FIG.
The outer curved surface of the tight member 15 is fitted into the jagged arcuate recess of the outer ridge 26 to prevent it from falling off.

According to the present invention, a vertical space is formed between the mullion, the outer ribbed edge, the inner ribbed edge, and the vertical side portion of the facing material fitted into the bottom groove of the facing material of the mullion, and the vertical space is filled in the vertical space. By introducing outside air from the outside air inlet provided on the outside rim, it is possible to maintain equal pressure inside and outside the vertical space, thereby sufficiently preventing water leakage from the fitting part between the mullion and the facing material. It can be done.

Furthermore, for mullions that are inherently complex in shape, long, and quite heavy, it is difficult to achieve cross-sectional accuracy, and there are also restrictions on the shape, making it difficult to manufacture. Although it had the disadvantage that it was not easy to process later, the mullion was assembled with the mullion main body and the outer ribbed edge, and the outer ribbed edge was easy to manufacture and later process, so the mullion was By using a simple structure for the main body and attaching an outer rib with a complicated structure or processing to it, the above manufacturing difficulties can be eliminated and the processing of the outside air inlet etc. can be made easier. In addition, it is possible to obtain a watertight, watertight, mullioned wall isobaric structure. Raindrops with kinetic energy are disposed of in the above vertical space, so they do not enter any further, and even a small amount of raindrops can be kept within the above isobaric space. Due to its principle, water will fall and be disposed of immediately, so there will be no leakage into the room.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view of a part of the curtain wall, FIG. 2 is a partially enlarged sectional view taken along the line ■-■ in FIG. 1, and FIG. -■ Line partially omitted enlarged sectional view, Fig. 4 is a partially omitted enlarged sectional view of Fig. 1 IV - The oblique view and FIG. 6 are enlarged sectional views of the tight material portion. 1... mullion, 1'... mullion body, 4.
4' Face material, 26...Outer rim, 27...
・Inner rim, 36...First outside air inlet, 37.
...Second outside air inlet, A...First vertical space, B...Second vertical space.

Claims (1)

[Scope of Claims] 1. An outer ribbed edge is provided on the outer side of the side surface of the mullage, and an inner ribbed edge is provided on the inner side of the side surface, and a face material fitting groove is formed between the outer ribbed edge and the inner ribbed edge, and the face material fitting groove is formed between the outer ribbed edge and the inner ribbed edge. A vertical space extending vertically in a sealed state is formed between the panel fitted inside the panel, the mullion, the outer ribbed edge, and the inner ribbed edge, and the vertical space is passed through an outside air inlet provided on the outer ribbed edge. A mullioned wall isobaric structure in a curtain wall that communicates with the outside air.