JPS6139793Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to a watertight structure for the joints of exterior panels in the exterior structure of a building made up of a plurality of exterior panels. The purpose is to improve the watertight function of the area.

[Prior Art] Conventionally, in this type of exterior structure, it has been important to maintain airtightness and watertightness at the joints between exterior panels, and for this reason, various sealing members have been developed to provide watertightness with higher performance. It has a structure.
However, even if the linear joints between exterior panels have excellent watertightness as described above, it is difficult to maintain the watertightness at the intersections, and in the end it is difficult to improve the overall watertightness. I have a little problem now.

[Purpose of the invention] This invention was made with the aim of solving the above problem, and consists of a pair of cross-shaped elastic substrates interposed at the intersection of exterior panels, and an approximately central portion of these elastic substrates. between the elastic substrates of a cross packing, the outer elastic substrate of the elastic substrates being formed with a drainage hole communicating with the upper surface of the horizontal connection wall;
By pinching and connecting the ends of the linear joint packings interposed between each of the exterior panels, the watertight performance at the intersection of the exterior panels is improved, and the watertightness is increased through the drainage holes provided in the cross-shaped packing. To provide a watertight structure for an exterior panel joint part in an exterior structure of a building, which is characterized in that rainwater etc. that have entered the frame side of the exterior panel can be discharged.

[Example] The watertight structure of the exterior panel joint portion in the exterior structure of a building of this invention will be described below with reference to the accompanying drawings.

The drawing shows an example of an outer wall of a building having a watertight structure at joints according to this invention, in which a heat insulating material 2 is attached to the outer surface of a frame 1, and a plurality of exterior panels 4 are installed on the outer surface via a space 3. This is the case when the . In this case, the heat insulating material 2 is a styrene resin heat insulating material such as Styrofoam (trade name).

The exterior panel 4 is attached by fixing bolts 7 to the upper surface of an angle-shaped bracket 6 fixed to the outer surface of the frame 1 by anchor bolts 5, and includes a plurality of channel-shaped cross members parallel to each other. 8 (as shown in the second figure) at its upper and lower ends. In addition, each of these exterior panels 4 is
Bent portion 4' that is bent approximately at right angles to its four circumferences
At the same time, outward flange portions 4a extending outward from the bent portion 4' are formed on both left and right sides and the upper end, and an inward flange portion 4a extending inward from the bent portion 4' is formed at the lower end. A flange portion 4b is formed, and a channel-shaped reinforcing frame 9 is horizontally attached to the back surface of the central portion thereof, that is, to the body side. The ends of the reinforcing frame 9 are connected to the left and right bent portions 4' via connecting members 9' (as shown in the third figure). Linear horizontal joint packing 11 is interposed between the connecting portions at the upper and lower ends and left and right ends of each of the exterior panels 4 constructed in this manner, thereby maintaining airtightness and watertightness between the connecting portions. In this case, both joint packings 10 and 11 are both made of, for example, neoprene rubber and have the same cross-sectional shape. That is, a plurality of elastic tongues 17 are provided on both sides of the substantially channel-shaped main body 16 in parallel with each other, and
A pair of engaging tongues 18, 18 are formed at the opening end of the main body 16, and a pair of linear legs 19 extend outward from the bottom 16' of the main body 16. , 19 are provided protrudingly, and when it is installed, the adjacent exterior panel 4
The elastic tongues 1 on both sides are interposed between the bent portions 4' of
7 is elastically brought into close contact with the bent portion 4', the main body 1 is inserted from the outside via the engaging tongues 18, 18.
Both exterior panels 4 are connected via the connecting member 9' by means of a mounting screw 20 penetrating through the bottom 16' of the panel 6.
It is becoming fixed. In this case, the head 20' of the screw 20 is hidden from the outside by the engaging tongue 18. Note that the pair of engaging tongue pieces 1
8 and 18, and at the same time, a cut may be made in this connection portion and the screw 20 may be inserted.

On the other hand, as shown in FIG. 5, at the intersection of the exterior panel 4, the joint packing 10,
A cross packing 21 is interposed to sandwich and connect the ends of 11. As shown in FIG. 6, this cross packing 21 includes a pair of opposing inner and outer cross-shaped elastic substrates 22, 23, and these elastic substrates 22, 23.
A horizontal connection wall 24 is formed horizontally slightly below the center of the outer elastic substrate 22 and connects both elastic substrates 22 and 23, and a horizontal connection wall 24 is formed at the center of the outer elastic substrate 23 on the upper surface of the horizontal connection wall 24. Communicating drainage hole 25
The material used is, for example, neoprene rubber. Since the ends of the linear joint packings 10 or 11 are sandwiched and connected between the elastic substrates 22 and 23 of the cross packing 21 configured in this way, the joint packings 10 or 11 are connected at the intersection of the exterior panel 4. and the cross packing 21 are interposed in an overlapping state, and furthermore, at the joint intersection, the pair of inner and outer elastic substrates 22 and 23 face each other and double close the gap, so extremely high watertight performance is achieved. Obtainable. In addition, a drainage hole 25 is provided in the outer elastic substrate 23.
are perforated, so the inner and outer elastic substrates 22, 23
It is possible to drain rainwater etc. that have entered the room or from other sources to the outside.

In addition, an outside air introduction/drainage hole 12 is bored in the lower bent portion 4' of the exterior panel 4 (as shown in the second figure), and the inside of the space 3 is maintained at a pressure equal to the outside pressure through this hole 12. At this time, in order to prevent rainwater etc. from entering the space 3 together with the outside air passing through the outside air introduction and water drainage hole 12, a buttful 13 is arranged on the space side of the outside air introduction and water drainage hole 12, Also, between the lower part of the exterior panel 4 and the horizontal member 8, there is a water return plate 14 having an inclined surface that slopes upward toward the frame 1 side.
is installed. Further, a reinforcing member 15 is installed between the cross member 8 and the bracket 6.

As described above, in this embodiment, the space 3 communicates with the outside air through the outside air introduction/drainage hole 12, and the joint packings 10, 11 interposed between the exterior panels 4 and each exterior panel 4. Complete airtightness and watertightness is achieved by the cross packing 21 which is interposed at the intersection and connects the ends of each joint packing 10, 11 by sandwiching it, so that good rain closure can be performed using the equal pressure principle. It is.

[Effects of the invention] As explained above, according to the watertight structure of this invention, each end of the linear joint packing is sandwiched and connected between a pair of cross-shaped elastic substrates that are connected in a facing manner. It has a heavy seal structure and can maintain extremely high watertight performance. In addition, drainage holes are drilled in the outer elastic substrate, so even if rainwater gets in between the elastic substrates or from other parts, it can be completely drained to the outside. The effectiveness of this method is significant, and its utility value is remarkable.

In addition, in the above example, the case where the watertight structure of this invention is applied between the exterior panels that exteriorize the waist of the building is explained, but of course the same method can be applied between the exterior panels that form the openings. It goes without saying that the present invention can also be used between other types of exterior panels.

[Brief explanation of drawings]

Fig. 1 is a front view of an exterior panel with a watertight structure of this invention, Figs. 2 to 4 are enlarged sectional views taken along lines -, -, and - in Fig. 1, respectively, and Fig. 5. 6 is a perspective view showing a connected state of the cross packing and joint packing in this invention, and FIG. 6 is a half-sectional perspective view of the cross packing. In the drawings, 4...exterior panel, 1
0, 11...Joint packing, 21...Cross packing, 22, 23...Elastic substrate, 24...Horizontal connection wall, 25...Drain hole.

Claims (1)

[Scope of utility model registration request] In the exterior structure of a building, which includes a plurality of exterior panels, a pair of cross-shaped elastic substrates, an inner and an outer pair, are interposed at the intersections of the exterior panels, and a horizontal connecting wall is connected at approximately the center of these elastic substrates. between the elastic substrates of a cross packing, the outer elastic substrate of the elastic substrates having a drainage hole communicating with the upper surface of the horizontal connection wall;
A watertight structure of an exterior panel joint in a building exterior structure, which is constructed by sandwiching and connecting the ends of linear joint packing interposed between each of the exterior panels.