JPH053606Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention relates to an exterior wall of a building that improves rain protection.

[Prior art]

As for the conventional exterior walls of buildings, recently it has become popular to use ALC (lightweight aerated concrete) PC plates as unit exterior panels.

This external wall body is constructed by extending unit exterior plates vertically and horizontally through brackets to the building frame, leaving openings for windows, installing unit windows in the openings, and then connecting vertically between each unit. , both horizontal joints were hermetically sealed from both the indoor and outdoor sides with sealing material.

[Problem that the invention attempts to solve]

However, as described above, both the vertical and horizontal joints of this outer wall body are hermetically sealed with a sealing material, so that a joint space that communicates with each other and is sealed is created in both parts. As a result, the following problems arose.

That is, since the pressure within the joint space becomes lower than the outside pressure, rainwater may infiltrate into the joint space from the capillary portion of the seal that is supposed to be hermetically sealed. Because there is no drainage outlet for rainwater that enters,
It remains in the joint space and begins to seep into the room with no escape.

Additionally, if a gap forms between the sealing material and the unit exterior plate or unit window due to deterioration of the seal, the intrusion of rainwater into the joint space will become more intense due to the pressure difference with the outside air pressure. Ta. However, since there is no active drainage means, a large amount of rainwater that enters the room often seeps into the room, corroding the interior walls and adversely affecting the indoor climate.

This invention was made to solve these conventional problems, and its purpose is to suppress the intrusion of rainwater into the joint space, and to prevent rainwater from entering the joint space. To provide an outer wall of a building that can effectively drain rainwater and prevent it from leaking indoors.

[Means for solving problems]

The exterior wall body according to this invention is composed of a unit exterior plate that is stretched vertically and horizontally on the building frame leaving an opening, and a unit window that is attached to the opening,
The vertical joints between the unit exterior plates are filled with indoor and outdoor sealants to form a sealed vertical joint space, and the horizontal joints between the upper unit exterior plates and the unit windows are , in an outer wall body in which a sealed horizontal joint space is formed by filling sealing materials on the indoor side and the outdoor side, the vertical joint space and the horizontal joint space are communicated, and the upper horizontal frame of the unit window is A plurality of water distribution holes communicating with the outside air are formed, and check valves are attached to these drainage holes.

〔Example〕

1 to 9 show a first embodiment of this invention.

FIG. 1 is a front view thereof, and FIGS. 2 to 9 are enlarged views of the main parts thereof. The same parts are given the same reference numerals throughout the figures.

In Fig. 1, P is the unit ALC plate as a unit exterior plate stretched on the building frame in the vertical and horizontal directions.
The PC plate etc. (hereinafter referred to as the exterior plate) W is a unit window that is fitted into an opening k formed between the stretched exterior plates P and stretched on the frame. The unit window W is an aluminum sash window with a size in which two exterior plates P are arranged side by side in the left and right direction, _f1 is the upper horizontal frame, _f2 is the lower horizontal frame, _f3 is the left vertical frame,
f ₄ is the right vertical frame, f ₅ is the middle vertical frame, g ₁ and g ₂ are glass that is fitted across the middle vertical frame f ₅ , and d ₁ and d ₂ are glass shoji. The exterior plate and the unit window W are stretched by being attached to a frame (not shown) via a bracket b, as shown in typical examples in FIGS.
In other words, bracket b consists of a bracket element 1 fixed to the frame and a plate piece 2 fixed by welding to this bracket element.
and an angle piece 3 fixed with bolts 4a, the exterior plate P is attached to the frame by means of attachment means not shown, and the unit window W has its upper and lower horizontal frames f ₁ and f ₂ portions attached to the above angle. It is attached to the frame by fixing bolts 4a to piece 3. Brackets similar to the above bracket b are provided at multiple locations, and unit windows W to these brackets
The mounting structure is also the same as that shown in FIGS. 2 and 3.

Figure 2 shows the unit window W and the ALC above it.
The cross-sectional structure of the horizontal joint _m1 between the slab P is shown.

In the figure, c ₁ is a first sealing material such as Compliform filled on the indoor side of the horizontal joint part m ₁ , and c ₂ is a first sealing material such as caulking material filled with a backup material u such as Compliform on the outdoor side. 2 sealing material. These two sealing materials c ₁ and c ₂ are used at the horizontal joint part m ₁
A horizontal joint space _T1 is formed which is hermetically sealed. V is a check valve, and a drainage hole h is provided in the upper horizontal frame _f1 and drains from the horizontal joint space _T1 to the outside air.
It is installed on. This check valve V is disposed at a plurality of locations on the upper horizontal frame _f1 of the unit window W. K is curtain box.

8 and 9 show the structure of the check valve V. In the figure, 5
1 is a cylindrical valve case, and 6 is a ball valve. In the valve case 5, 5a is a storage hole for the ball valve 6, and 5b is a storage hole for the ball valve 6.
5c is a valve seat provided on the inflow port a side, and 5c is a ball receiver provided on the outflow port b side. The storage hole 5a is a hole d with a circular cross section and four grooves e in the length direction, and the inner diameter of the hole d is slightly larger than the ball valve 6 so that the ball valve 6 can move up and down. It is set as. The valve seat 5b functions as a check valve by coming into contact with the ball valve 6. The ball receiver 5c has a rectangular cross section, and a ventilation hole is formed between the ball receiver 5c and the ball valve 6 in contact with the ball receiver 5c. Therefore, when the internal pressure P 1 of the horizontal joint space T ₁ and the joint spaces T ₃ to _{T 6} (described later) communicating with _this is lower than the external pressure P ₂ , the check valve V is activated. It works and stops the inflow of outside air. The groove e provided in the storage hole 5a is a groove for guiding rainwater flowing in from the inlet a to the outlet b.

FIG. 3 shows the cross-sectional structure of the horizontal joint _m2 between the unit window W and the exterior plate P below it. This joint
Similar to the horizontal joint portion m ₁ , m ₂ has a structure in which it is sealed by a first sealing material c ₁ and a second sealing material c ₂ . However, in the case of this embodiment, the liner 8 is interposed in the horizontal joint part _m2 , and a space corresponding to the horizontal joint space _T1 is not formed.
9 is a condensation catcher.

FIG. 4 shows the cross-sectional structure of the vertical joint _m3 between the left and right adjacent unit windows W, W. Right vertical frame f ₄ of one unit window W and left vertical frame f ₃ of the other unit window W
are connected by screws at the flange portions 10, 10 and screws at the connecting plate 11. The above vertical joint between left and right vertical frames f ₃ and f ₄
Similar to the horizontal joint part _m1 , a vertical joint space part _T3 is formed in _m3 , which is hermetically sealed by a first sealing material _c1 and a second sealing material _c2 . 12 is the connecting plate 11
This is a decorative frame that is attached by being hooked to the hooking claws 11a of the frame.

FIG. 5 shows the cross-sectional structure of the vertical joint _m4 between the left and right adjacent unit windows W and exterior plate P. The exterior plate P and the unit window W are connected by screwing the left vertical frame _f3 of the latter to a bracket _b1 attached to the side surface of the former P with a fixer anchor 13. The vertical joint part m ₄ between both P and W has a horizontal joint part.
Similar to m ₁ , a vertical joint space T ₄ is formed which is hermetically sealed by the first sealing material c ₁ and the second sealing material c ₂ . The vertical joint part _m4 on the opposite side has a similar structure.

Fig. 6 shows the cross-sectional structure of the vertical joint part _m5 and the horizontal joint part _m6 between the exterior panels P and P that are adjacent to each other in the vertical and horizontal directions. These joints m ₅ and m ₆ have _the first
A vertical joint space T ₅ and a horizontal joint space T ₆ are formed which are hermetically sealed by the sealing material c ₁ and the second sealing material c ₂ .

FIG. 7 shows the structure of the upper end of the vertical joint _m3 in FIG. 4, viewed from the indoor side. In the figure, 14 indicates that the left vertical frame f ₃ and the right vertical frame f ₄ forming the vertical joint part m ₃ are the fourth
As shown in the figure, since it is a cylindrical frame with a hollow part t, the third sealing material is filled in the upper end of the frame to prevent rainwater from falling through the hollow part t.
15 is a fourth sealing material filled in the upper end of the vertical joint space _m3 for the same reason. Both sealing materials 1
The finished surfaces of 4 and 15 are the same as or slightly higher than the bottom surface of the groove 16 of the upper horizontal frame _f1 of the unit window W. This is to make it easier for rainwater falling on the sealing materials 14 and 15 to be guided to the left and right grooves 16. Although not shown in the figure, the vertical joint _m4 shown in FIG. It's blocked. Therefore, vertical and horizontal joint spaces T ₅ and T ₆ are formed above the unit window W and communicate with each other.
All of the rainwater that has entered the window or the water droplets that have condensed therein fall into the groove 16 formed in the upper horizontal frame _f1 of the unit window W and remain there.

Next, the action will be explained.

When the internal pressure P ₁ of the horizontal joint space T ₁ is lower than the external pressure P ₂ , the ball valve 6 is pushed up and comes into contact with the valve seat 5 b, and the check valve operates to prevent the inflow of outside air. It can also prevent rainwater from blowing in.

Therefore, rainwater that has entered both the vertical and horizontal joint spaces T ₅ and T ₆ of the exterior plate P due to capillary action etc. can be removed from the vertical joint space T ₅ to the concave groove 16 of the upper horizontal frame f ₁ of the unit window W.
The ball valve 6 of the check valve V is pushed down, and the water is discharged outside through the valve seat 5b, the groove e, the ball receiver 5c, and the discharge port b. For this reason, rainwater that has entered the joint space is not drained away as in the past.
There is no longer any risk that it would accumulate in T ₅ and T ₆ and leak into the room, corrode the inner walls, or adversely affect the indoor climate.

As mentioned above, in this embodiment, the check valve V is installed in the drainage hole h of the upper horizontal frame _f1 of the unit window W, and the rainwater that has entered the spaces _T5 and _T6 of the exterior plate P is was led to this check valve V and discharged from this check valve V. Therefore, according to this embodiment, the rainwater that has entered the joint spaces T ₅ and T ₆ is effectively discharged to prevent it from seeping into the room and also from backflowing.

10 and 11 show a second embodiment. 1st, 2nd
The same or corresponding parts as those in the figures are given the same reference numerals.

This embodiment is an example in which a unit window _w1 is provided with outward folding windows _d3 and _d4 on the upper stage. Unit window W ₁
Due to the structure, the cross-sectional shape of the upper horizontal frame _f1 is different, so the mounting position of the check valve V is also different. There is no difference from the first embodiment in other configurations and effects.

[Effect of idea]

As explained above, according to this invention, a check valve is installed in the drainage hole provided in the upper horizontal frame of the unit window, and rainwater that has entered the joint space of the exterior plate is guided to the check valve. Since the structure is configured to drain from this, rainwater that has entered the joint space can be effectively drained and prevented from leaking into the room, and backflow can also be prevented.

[Brief explanation of the drawing]

Figure 1 is a front view of the first embodiment of this invention;
The figure is a sectional view of Fig. 1, Fig. 3 is a sectional view of Fig. 1, Fig. 4 is a sectional view of Fig. 1, Fig. 5 is a sectional view of Fig. 1, and Fig. 6 is a sectional view of Fig. 1. Fig. 7 is an enlarged perspective view of the part shown in Fig. 1 seen from the rear side, Fig. 8 is a sectional view of the check valve in Fig. 2, and Fig. 9 is a cross-sectional view of the check valve in Fig. 8. - cross-sectional view;
Figure 10 is a sectional view of the second embodiment of this invention;
1 is a sectional view taken along the line XI-XI in FIG. 10. In the figure, P is the unit exterior plate (ALC version, PC version, etc.), k is the opening, W is the unit window, _c1 is the first sealing material, _c2 is the second sealing material, 14 is the third sealing material, 15 is the fourth sealing material, T ₃ , T ₄ , T ₅ are the vertical joint spaces, T ₁ , T ₆ are the horizontal joint spaces, f ₁ is the upper horizontal frame,
h is a drainage hole, and V is a check valve.

Claims (1)

[Scope of utility model registration request] It consists of a unit exterior plate that is stretched vertically and horizontally over the building frame, leaving an opening, and a unit window that is attached to the opening, and a sealing material for the indoor and outdoor sides is applied to the vertical joints between the unit exterior plates. A sealed vertical joint space is formed by filling the horizontal joint space between the upper unit exterior plate and the unit window, and a sealed horizontal joint space is created by filling the indoor side and outdoor side sealants into the horizontal joint space between the upper unit exterior plate and the unit window. The vertical joint space and the horizontal joint space are made to communicate with each other in the outer wall body in which the vertical joint space and the horizontal joint space are formed, and a plurality of drainage holes communicating with the outside air are formed in the upper horizontal frame of the unit window, and check valves are installed in the drainage holes. An exterior wall of a building characterized by being equipped with.