JPH0790968A - Waterproof structure of connecting section in curtain wall - Google Patents

Abstract

PURPOSE:To stop water positively by installing a rain barrier with an outside-air introducing port outside a connecting section and mounting a wind barrier inside the connecting section. CONSTITUTION:A horizontal-joint rain barrier 3 is set up outside the horizontal joint 2 of a curtain wall 1, and a horizontal-joint wind barrier 4 is attached inside the curtain wall 1, thus forming a horizontal-joint internal space 5. A splash barrier 6 is stuck on an inclined plane on the inside of an outside-air introducing port 2a between the horizontal-joint rain barrier 3 and the horizontal-joint wind barrier 4. Accordingly, water droplets introduced from the outside-air introducing port are stopped by the splash barrier, thus constructing complete waterproof structure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof structure for a joint portion of a curtain wall.

[0002]

2. Description of the Related Art Generally, as shown in FIG. 7, a curtain wall is provided with a rain barrier 20 on the outside and a wind barrier 30 on the inside thereof, as shown in FIG. The rain barrier 20 is a fin-shaped rubber molded product. In order to prevent water droplets entrained by the airflow from the outside air introduction port 20a provided therein from reaching the wind barrier, a rain barrier 20 and a wind barrier 30 are provided. Another rain barrier 40 is provided between the two. This is to stop the water by arranging the rain barriers 20 and 40 in double so as to shift the position of the outside air introduction port 20a.

[0003]

However, in the waterproof structure of the joint portion in the curtain wall as described above, since the rain barrier is double provided with the position of the outside air introduction port being shifted, the cost is increased. At the same time, the fitting groove for mounting the rain barrier has to be additionally provided, so that there is a problem that the production of the curtain wall becomes complicated. In addition, since these rain barriers are fin-shaped rubber molded products, the tip of the rain barrier twists in one direction in the joint portion of the curtain wall without being regularly curved, so a sufficient waterproofing effect is exhibited. There were times when I couldn't. The present invention has been made in view of such a problem, and an object thereof is to provide a waterproof structure for a joint portion in a curtain wall that can be easily constructed at low cost and can reliably stop water.

[0004]

The summary of the waterproof structure of the joint portion in the curtain wall of the present invention for attaining the above object is to provide a rain barrier having an outside air introduction port on the outside of the joint portion. This is because a tubular splash barrier is provided at an inner position of the outside air introduction port of the rain barrier at a joining portion of the curtain wall provided with a wind barrier inside the portion.

[0005]

The inner space of the joint portion including the rain barrier and the wind barrier is communicated with the outside by the outside air introduction port and becomes equal in pressure to the outside pressure, so that intrusion of mist-like rainwater can be prevented. However, in some cases, water droplets may jump in from the outside air introduction port, but this is stopped by the splash barrier provided inside the outside air introduction port and drained from the outside air introduction port. As a result, rainwater does not reach the inner wind barrier, and a perfect waterproof structure can be constructed. Further, since the cylindrical splash barrier is provided only at the inner position of the outside air introduction port of the rain barrier, the waterproof structure of the joint portion of the curtain wall can be inexpensively and easily constructed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a waterproof structure for a joint portion of a curtain wall of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view showing a waterproof structure in a lateral joint 2 of a curtain wall 1, in which a lateral joint rain barrier 3 is provided outside the lateral joint 2 and a lateral joint wind barrier 4 is provided inside thereof.
To form the lateral joint internal space 5, and between the lateral joint rain barrier 3 and the lateral joint wind barrier 4,
That is, the splash barrier 6 is provided on the inclined surface 13 inside the outside air inlet 2a of the horizontal joint rain barrier 3.

The horizontal joint wind barrier 4 and the splash barrier 6 are formed by attaching a tubular gasket to the lower end surface of the joint portion of the curtain wall 1 with an adhesive material, while the horizontal joint wind barrier 4 is attached to the entire length of the curtain wall 1. The splash barrier 6 is attached only to the location where the outside air inlet 2a is located. The lateral joint rain barrier 3 is fitted with a fin-shaped rubber molded product in the fitting groove 2b and attached to the entire length of the curtain wall 1, and is provided with the outside air introduction ports 2a at appropriate intervals.

Therefore, since the lateral joint internal space 5 becomes equal in pressure to the external pressure by the outside air introduction port 2a, it is possible to prevent the entry of atomized rainwater, and even if a water drop jumps from the outside air introduction port 2a, Water is stopped by the splash barrier 6 and drained from the outside air introduction port 2a so as not to reach the inside horizontal joint wind barrier 4.

The curtain wall 1 has a lateral joint rain barrier 3 and a lateral joint wind barrier 4 on the lower end surface of the joint.
And the splash barrier 6, it is formed when the curtain wall 1 is joined.

FIG. 3 is a perspective view showing a waterproof structure at the intersection of the horizontal joint 2 and the vertical joint 7 of the curtain wall 1. This is because the lateral joint rain barriers 3 and 3a of adjacent curtain walls 1 and the lateral joint wind barriers 4 and 4a are respectively joined by vertical joints 7 to form a lateral joint internal space 5. A vertical joint internal space 10 is formed by the vertical joint rain barriers 8 and 8a and the vertical joint wind barriers 9 and 9a in a direction orthogonal to the above.

Then, the lateral joint internal space 5 is formed by the outside air inlets 2a formed at the intersections of the left and right lateral joint rain barriers 3 and 3a and the upper and lower vertical joint rain barriers 8 and 8a.
And the vertical joint internal space 10 communicate with the outside and are at the same pressure as the external pressure. The external introduction port 2a is formed by forming a gap corresponding to the vertical joint interval at the joint between the lateral joint rain barriers 3 and 3a of the adjacent curtain walls 1.

Further, a water receiving sheet 11 is laid across the vertical joints 7 of the lower curtain wall 1. This is to receive rainwater flowing down from the vertical joint 7 and discharge it from the outside air inlet 2a. The auxiliary barrier 12 for guiding rainwater to the water receiving sheet 11 is the vertical joint rain barrier 8 and the vertical joint wind barrier of the vertical joint 7. 9 is attached to the vertical joint wind barrier 9 and the lower end is in contact with the splash barrier 6 of the water receiving sheet 11. Therefore, the rainwater from the vertical joint 7 flows down to the water receiving sheet 11 by the auxiliary barrier 12 and is drained from the outside air introduction port 2a.

The water receiving sheet 11 is a curtain wall 1.
Is preliminarily adhered to the upper surface of, and the ends are overlapped between the vertical joints 7. Then, the splash barrier 6 is formed on the upper surface of the water receiving sheet 11 that is superposed and joined.
Are pressed in contact with each other. Further, the water receiving sheet 11 may be manufactured by adhering the splash barrier 6 in advance, and may be laid across the vertical joints 7 after joining the left and right curtain walls 1.

The splash barrier 6 is located inside the outside air inlet 2a of the horizontal joint rain barrier 3 so as to prevent water droplets entering from the outside air inlet 2a from reaching the horizontal joint wind barriers 4 and 4a. Similarly, a tubular gasket is attached to the inclined surface 13 at the lower end of the joined portion of the curtain wall 1 with an adhesive material. Therefore, the water droplets that have entered from the outside air inlet 2a are stopped by the splash barrier 6 and drained again from the outside air inlet 2a, so that they do not reach the vertical joint wind barrier 9 and the horizontal joint wind barriers 4 and 4a. . Further, the splash barrier 6 may be attached to each water receiving sheet 11 in advance, and may be laterally joined at the same time when the water receiving sheets 11 are superposed and joined.

The waterproof structure of the present invention is formed at the lateral joints 2 of the curtain wall 1 and at the intersections of the lateral joints 2 and the vertical joints 7. The curtain wall 1 has a vertical joint rain on one side surface. Barriers 8 and 8a, vertical joint wind barriers 9 and 9a, and auxiliary barriers 12, horizontal joint rain barriers 3, horizontal joint wind barriers 4, and splash barriers 6 are provided on the lower end surfaces of the joints, and water receiving sheets 11 are provided on the upper surfaces, respectively. ing. Therefore, by joining such curtain walls 1 to each other, the waterproof structure of the present invention is formed at the lateral joints 2 and at the intersections of the lateral joints 2 and the longitudinal joints 10.

[0016]

EFFECTS OF THE INVENTION Since the internal space of the joint portion composed of the rain barrier and the wind barrier is communicated with the outside by the outside air introduction port and becomes equal to the external pressure, intrusion of mist-like rainwater can be prevented. The water droplets that have jumped in from the outside air inlet are stopped by the splash barrier provided inside the outside air inlet and drained from the outside air inlet, so rainwater does not reach the inner wind barrier and is a perfect wall. A waterproof structure can be constructed.

Further, since the splash barrier is provided at the inner position of the outside air inlet of the rain barrier, the waterproof structure of the joint portion in the curtain wall can be constructed inexpensively and easily.

[Brief description of drawings]

FIG. 1 is a perspective view of a waterproof structure in a horizontal joint.

FIG. 2 is a cross-sectional view of a waterproof structure in a horizontal joint.

FIG. 3 is a perspective view of a waterproof structure at an intersection of a horizontal joint and a vertical joint.

FIG. 4 is a partially cutaway perspective view of a waterproof structure at an intersection of a horizontal joint and a vertical joint.

FIG. 5 is a cross-sectional view of a waterproof structure at an intersection of a horizontal joint and a vertical joint.

FIG. 6 is a cross-sectional view of a waterproof structure at an intersection of a horizontal joint and a vertical joint.

FIG. 7 is a cross-sectional view of a conventional waterproof structure.

[Explanation of symbols]

 1 Curtain wall 2 Horizontal joint 2a Outside air introduction port 3 Horizontal joint rain barrier 4 Horizontal joint wind barrier 5 Horizontal joint internal space 6 Splash barrier 7 Vertical joint 8 Vertical joint rain barrier 9 Vertical joint wind barrier 10 Vertical joint internal space 11 Water receiving sheet 12 Auxiliary barrier 13 Slope

Claims (1)

[Claims] 1. A rain barrier provided with an outside air inlet is provided outside the joint, and a wind barrier is provided inside the joined portion at the joint of the curtain wall. A waterproof structure of the joint part in the curtain wall, characterized in that a cylindrical splash barrier is provided at the position.