JP2889472B2 - Building exterior wall panels and building exterior walls using the panels - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building outer wall panel mainly used for a residential building and an outer wall of a building using the panel.

[0002]

2. Description of the Related Art Exterior wall panels for use in steel-framed houses and the like.
For example, on the back of the edge of the exterior board,
The interior frame is attached to the back of this exterior frame.
Is fixed, the exterior board and the exterior frame are attached to the interior frame
With an overhang formed by overhanging
(See Japanese Patent Application Laid-Open No. 4-347236).

According to this conventional outer wall panel, the overhang portion is
It can be installed simply by fixing it directly to the base or trunk of the building.
Therefore, it is not necessary to arrange studs, and construction is greatly
It can be simplified and the exterior frame can be
It is possible to obtain a wall structure with excellent ventilation because it functions
It is said that.

[0004]

The above-mentioned conventional outer wall panel
Now, because the outside air flows inside the frame of the exterior frame,
While air permeability inside the panel is improved, temperature difference from room temperature
When the outside air with large
It is said that dew occurs and damages the wood inside it early
New challenges can arise.

Therefore, glass wool is placed inside the outer wall panel.
Considering filling with heat insulation material such as
However, this heat insulating material is applied to the inside of the outer frame.
After filling, the inside of the frame of the exterior frame becomes a ventilation path
No longer function, impairing the ventilation of the outer wall panel
Will be. The present invention has been made in view of such circumstances, and
Panel without disturbing the function of the frame as a vent
Allows the interior to be filled with insulation and allows the exterior panel
Effectively prevents condensation inside the panel while ensuring temperament
It is a primary object to provide an exterior wall panel.

On the other hand, Japanese Patent Laid-Open Publication No.
In the conventional outer wall described in (1), the underhang of the outer wall panel is
Ventilation cylinder fixed to the base and composed of an exterior frame
The lower end of the edge communicates with the outdoor side (see FIG. 3 of the publication).
See). For this reason, in the conventional outer wall structure, especially in the rainy season and
In summer, humid outside air is introduced into the exterior panel
The humid outside air may cause
Condensation may form inside and damage the wood prematurely.
You.

[0007] Further , under the ventilation trunk formed of an exterior frame.
When the end communicates with the outdoor side, the outer wall panel
If the upper overhang is connected to the ceiling,
The outside air enters the ceiling and rots the wood inside the ceiling.
It can also be a cause. Therefore, the present invention provides an air passage
Using an exterior wall panel with an exterior frame
On the outer wall of the building to be built,
Try to take in the air under the floor where the humidity is less,
Prevents condensation from forming on the exterior wall panels and inside the ceiling
A second object is to improve the permeability of the outer wall while improving the outer wall.

[0008]

In order to achieve the above object,
The present invention has taken the following technical measures. That is, according to the first aspect of the present invention , the exterior frame is fixed to the back surface of the edge of the exterior board.
The interior frame is attached to the back of the exterior frame.
The exterior board and the exterior frame are connected to the interior frame.
A building exterior wall panel having an overhang formed by overhanging the exterior frame and the interior frame.
Insulation material only inside the frame of the interior frame
To fill the inside of the outer frame.
Air flow is ensured .

According to the second aspect of the present invention, an outer wall panel in which an interior frame for fixing an exterior board to a frame member of a building is framed on the back side of the exterior board is arranged in a horizontal plane. An exterior wall of a building, the exterior wall panel
Is attached to the exterior board and the outside
Frame and the interior fixed to the back of this exterior frame
The frame, the exterior board and the exterior frame to the interior
Overhang formed by projecting above and below the frame
In the outer wall of the building and a, when the outer wall panel
The upper overhang is communicated with the ceiling behind the floor where the outer wall panels are juxtaposed, and the lower overhang is communicated under the floor of the floor where the outer wall panels are juxtaposed. Features.

[0010]

[Action] In the first aspect of the present invention, the back surface of the armor board 2
It and the outer frame 3 and interior frame 4 at the side the name of the inner and outer double frame structure, moreover, the outer frame 3
And the inside of the frame of the interior frame 4
By filling only the part with the heat insulating material 27,
Airflow inside the frame of the room 3 is secured
Therefore, the function of the exterior frame 3 as a ventilation path may be impaired.
Insulation material 27 can be filled inside the panel
While maintaining the ventilation of the outer wall panel 1
Condensation is effectively prevented.

According to the second aspect of the present invention, the overhang portion 11 on the upper side of the outer wall panel 1 is communicated with the ceiling backs 42 and 44 of the floor where the outer wall panel 1 is juxtaposed, and the lower overhang portion. 1
1 is below the floor 43, 45 of the floor where the outer wall panel 1 is juxtaposed.
To the outside air instead of the humid outside air
Air under the floor 43, 45, which is less humid than the
1 and the air with low humidity
It flows into the ceilings 42 and 44 via the panel 1 .

[0012]

An embodiment of the present invention will be described below in detail with reference to the drawings. 1 to 7, an outer wall panel 1 according to the present embodiment includes a rectangular flat plate-shaped exterior board 2 made of a stone material or a ceramic extruded material, and an exterior frame 3 fixed to a back surface of the exterior board 2. Further, there is provided an interior frame 4 fixed to the back surface of the exterior frame 3.

[0013] As shown in FIG.
Is formed in a rectangular frame shape from a vertical longitudinal edge member 5 and a vertical crosspiece 6 made of wood having a rectangular cross section, and a horizontal horizontal edge member 7 also made of wood having a rectangular cross section.
Are fixed by an adhesive along the periphery of the. On the other hand, the interior frame 4 is formed in the shape of a rectangular frame from a vertical frame member 8 made of wood having a rectangular cross section and a horizontal frame member 9 made of wood having a rectangular cross section. 4 is set to be about two to three times the sectional height H1 of the exterior frame 3.

The vertical frame member 8 is fixed to the rear surface of the vertical edge member 5 with an adhesive or a nail so that the inner surface of the vertical frame member 8 coincides with the inner surface of the exterior frame 3. The side surface is a mounting surface to the steel pillar 10. Also,
The vertical frame member 8 is shorter than the vertical edge member 5, and the horizontal frame member 9 is fixed to the panel center side of the horizontal edge member 7 in both the upper and lower directions. In the upper and lower parts, a projecting portion 11 is formed in which the exterior board 2 and the exterior frame 3 project vertically above the interior frame 4.

On the upper surface of the interior frame 4, an auxiliary bar 12 is fixedly attached to a beam 13 to be described later. As described above, in the outer wall panel 1 according to the present embodiment, since the peripheral edge of the exterior board 2 is reinforced by the exterior frame 3, the exterior board 2 is prevented from being damaged at the overhang portion 11.

Further, since the exterior frame 3 and the interior frame 4 have a double inner / outer frame structure on the back surface of the exterior board 2, as shown by arrows in FIG. If the exterior frame 3 is opened by inserting it, air circulation in the in-plane direction inside the outer wall panel 1 is achieved. FIG. 1B shows a structure for attaching the outer wall panel 1 to a residential building.

In FIG. 1, a pillar 10 is erected on a cloth foundation (not shown), and an upper end portion of the pillar 10 is connected by a beam 13 made of H-shaped steel. ), A brace 14 is provided to form a bearing wall, and the outer wall panel 1 is fitted into the frame of the bearing wall from the outside. That is, a hook 15 having a hook with a downward opening is fixed to a lower portion of the outer surface of the vertical frame member 8, and the hook of the hook 15 is hooked to the base piece 16 of the pillar 10. At the same time, the outer wall panel 1 is mounted in the frame of the load-bearing wall by screwing a suspension bolt 17 penetrating the lower flange of the beam member 13 to a mounting plate 18 embedded in the upper surface of the auxiliary bar 12. .

FIGS. 3 and 4 show the joining structure of the outer wall panel 1 in the lateral direction. In this embodiment, the outer wall panels 1 and 1 adjacent in the horizontal direction are joined to each other by a U-shaped mounting bracket 20 fastened to an intermediate portion of the outer surface of the vertical frame member 8 with a bolt 19. The column material 10 is provided inside. A spacer 21 for securing a joint width is fixed to an outer edge surface of the vertical edge member 5, and the vertical edge members 5 of the outer wall panels 1, 1 that are adjacent in the horizontal direction so that the spacers 21 are pressed against each other. They are fastened to each other by through bolts 22.

At this time, the exterior board 2 and the exterior frame 3
A gasket 24 is interposed in a joint 23 formed between the joint edges of the joints, and a joint heat insulating plate 2
5 are provided. An interior board 26 made of a gypsum board or the like is attached to the back surface of the outer wall panel 1 after the joining. As shown in FIGS. 2, 5 and 6, the interior frame 4 of each outer wall panel 1 is filled with a heat insulating material 27 made of glass wool or rock wool at a construction site. Is not filled with the heat insulating material 27, thereby ensuring the flow of air in the vertical direction of the outer wall panel 1.

On the other hand, FIG. 5 and FIG.
3 shows a joint structure in the vertical direction, that is, a joint structure of the outer wall panels 1 arranged on the upper and lower floors of a two-story house. As shown in the figure, the upper and lower outer wall panels 1 and 1 are juxtaposed so that the outer board 2 and the outer frame 3 are located outside the beam material 13, and in this case, the upper and lower outer panels 1 and 1 project from each other. The parts 11 are arranged so as to be abutted up and down.

A joining groove 28 is formed in the lateral edge member 7 of the exterior frame 3 so as to open toward the exterior board 2 to be joined. On the upper surface of the flange of the beam 13, the joining groove 28 is fitted. Fastening means 29 for fastening the lateral edge members 7 of both exterior boards 2 to each other are attached at regular intervals in the longitudinal direction of the beam 13. The fastening means 29 includes a substantially L-shaped joint fitting 31 fastened by bolts 30 to the upper surface of the flange of the beam member 13, and a joint fitting 31 with upper and lower ends fitted in the joining grooves 28 of both outer wall panels 1. And a press fitting 32 pressed to the side.

The joint fitting 31 includes a board portion 33, a standing plate portion 34 rising upward from an outer end of the board portion 33, and a guide plate portion 35 inclined upward and inward from the upper end of the standing plate portion 34.
The standing portion 34 is erected on the outer surface side of the beam 13 by fastening the substrate portion 33 to the upper surface of the flange of the beam 13 with bolts 30. A fastening bolt 36 having a hexagonal hole in the head is inserted laterally through the center of the holding metal fitting 32, and the fastening bolt 36 is screwed into a nut 37 fixed to the upright plate portion 34 of the joint fitting 31, The upper and lower lateral edge members 7 are sandwiched between the presser fitting 32 and the upright plate portion 34, whereby the upper and lower outer wall panels 1, 1 are joined to each other.

A compression spring 38 is interposed on the shaft of the fastening bolt 36. The compression spring 38 urges the holding member 32 before fastening toward the head side of the fastening bolt 36, and It is easy to insert the edge member 7 between the press fitting 32 and the upright plate portion 34. After the upper and lower outer wall panels 1 are joined, the joint 39 formed between the lateral edge members 7 is provided with a drain, and the outside of the joint 39 is waterproofed by a decorative parting edge made of PVC or the like.

FIG. 8 shows a two-story house using the outer wall panel 1 to adopt a ventilation system on the outer wall. In the figure, the outer wall of the lower floor section 40 on the first floor and the outer wall of the upper floor section 41 on the second floor are formed by arranging the outer wall panels 1 in a horizontal plane. At this time, the outer wall panel 1 of the shed 40 is provided with the overhang 1
1 communicates with the underside 42 of the cabin 40, and the lower overhang 11 communicates with the underfloor 43 on the first floor. In the outer wall panel 1 of the shed 41, the overhang 11 on the upper side is communicated with the ceiling 44 of the shed 41, and the lower overhang 1
1 communicates with the underfloor 45 on the second floor.

Therefore, the fresh air under the floor 43 on the first floor is:
It is taken into the first floor ceiling 42 and the second floor underfloor 45 via the first floor outer wall panel 1, and is further taken up on the second floor outer wall panel 1.
To the ceiling 44 of the second floor through which a ventilation system is constructed on the outer wall of the building.

[0026]

As described above, the outer wall panel according to the present invention is provided.
According to FIG. 1 , the function of the exterior frame 3 as a ventilation path
Fill the inside of the panel with the heat insulating material 27 without hindrance
It is possible to ensure the ventilation of the outer wall panel 1
Thus, dew condensation inside the panel can be effectively prevented.

[0027] In addition, according to the outer wall of the building of the present invention, moisture
It is not under the humid outside air, but under the floor 4 with less humidity
While 3,45 air circulates inside the outer wall panel 1,
The low-humidity air passes through the panel 1 and
2 and 44, the outer wall panel 1 and the ceiling 42,
Ventilation of the outer wall while preventing dew condensation inside 44
Performance can be improved.

[Brief description of the drawings]

1A is a perspective view of an outer wall panel, and FIG. 1B is a perspective view showing a mounting structure of the outer wall panel.

FIG. 2 is a longitudinal sectional view of an outer wall panel.

FIG. 3 is a cross-sectional view illustrating a lateral joining structure of the outer wall panel.

FIG. 4 is a perspective view showing a lateral joining structure of the outer wall panel.

FIG. 5 is a cross-sectional view showing a vertical joining structure of the outer wall panel.

FIG. 6 is an enlarged sectional view of the same.

FIG. 7 is a rear view of a joint corner portion of the outer wall panel.

FIG. 8 is a sectional view of a house in which a ventilation system on an outer wall is introduced.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 outer wall panel 2 exterior board 3 exterior frame 4 interior frame 11 overhang 10 skeletal member (column member) 13 skeletal member (beam member) 42 ceiling back 43 underfloor 44 ceiling back 45 underfloor

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Masamichi Yoshioka 3-12-12 Minamisenba, Chuo-ku, Osaka-shi, Osaka Inside Kubota House Co., Ltd. (56) References JP-A-4-347236 (JP, A) (58) ) Surveyed field (Int.Cl. ⁶ , DB name) E04B 2/56 E04C 2/46

Claims (2)

(57) [Claims] An exterior frame is provided on the back surface of the edge of the exterior board (2).
Arm (3) is fixed, and the back surface of this exterior frame (3)
The interior frame (4) is fixed to the
(2) and the exterior frame (3) to the interior frame (4)
Overhang portion (11) formed by overhanging
The exterior wall panel for a building, wherein the interior of the exterior frame (3) and the interior frame (4)
Of the heat insulation material (2
7) to fill the outer frame (3).
An exterior wall panel for a building, characterized in that the flow of air inside the frame is secured . 2. The exterior board (2) is connected to a frame member (1) of a building.
0) (13) is an outer wall of a building in which an inner frame (4) for fixing to the (13) is an outer wall panel (1) which is framed on the back side of the outer board (2) and is arranged side by side in a horizontal direction.
Te, the outer wall panel (1) is an exterior board (2), the ball
Exterior frame (3) fixed to the back of the edge of the arm (2)
And the interior frame fixed to the back of the exterior frame (3).
Arm (4), the exterior board (2) and the exterior frame
Overhang (3) above and below the interior frame (4)
Building comprising an overhang (11) formed by
In the outer wall, the outer wall panel (1) ceiling above the projecting portion (11) of the floor to which the external wall panels (1) are arranged in (42) (4
4), and the lower overhang portion (11) is below the floor (43) (4) of the floor where the outer wall panel (1) is juxtaposed.
An outer wall of a building, which is connected to 5).