JP3367505B2 - Exterior wall construction structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outer wall construction structure in which a joint treatment member is arranged between adjacent outer wall plates fixed to a structural body via fastening metal fittings.

[0002]

2. Description of the Related Art Conventionally, in a structure for constructing an outer wall of a building, a hat joiner or a joint joiner is provided at a butt joint between adjacent outer wall plates or at a butt joint between an outer wall plate and a projected corner post. Then, a sealing material is placed on it. Such an outer wall construction structure requires a lot of time and labor for construction and requires a long construction period. Further, the finish of the surface of the joint portion is a part of the exterior surface that directly comes into contact with the eye, so that it requires skill in the construction technique.

Further, since the sealing material is made of, for example, a modified silicone type resin, polysulfide type resin, polyurethane type resin, etc., the joint portion becomes glossy and stands out. Therefore, there is a problem that it is difficult to be compatible with the surface of the outer wall plate. Furthermore, joint deterioration due to aging of the above-mentioned sealing material and deterioration caused by insufficient weather resistance are unavoidable. As a result, the exterior wall construction structure will have a poor external appearance, and will also impair the rain performance.

In order to solve the above-mentioned problems, for example, Japanese Unexamined Patent Publication No. 8-232355 and Japanese Unexamined Patent Publication No. 9-32
A joint treatment member as disclosed in Japanese Patent Laid-Open No. 137 and Japanese Patent Laid-Open No. 9-291616 is proposed. The joint treatment member includes a fitting member that fits into a joint between adjacent outer wall plates, and a receiving plate member that is fixed to the structural body to fit and fix the fitting member. Then, the elastic fitting member is in close contact with the side surfaces of the adjacent outer wall plates to prevent rainwater from entering.

[0005]

[Problems to be Solved] However, in all of the outer wall construction structures described above, the outer wall plate is directly fixed to the structural frame. That is, when fixing the outer wall plate to the structural body, nails or the like are driven into the outer wall plate.

Therefore, the appearance and design of the outer wall construction structure may be deteriorated, and the outer wall plate may be damaged such as cracks. Further, no air gap is provided between the structural body and the outer wall plate, so that air permeability is insufficient. Therefore, there is also a problem that the structural skeleton and the outer wall plate are likely to deteriorate.

In order to solve such a problem, there is an outer wall construction structure in which the outer wall plate is fixed to the structural body through a metal fitting. In the outer wall construction structure, since it is not necessary to hit nails or the like on the outer wall plate itself, there is no risk of deterioration of the appearance design of the outer wall plate or cracking of the outer wall plate. Further, in the outer wall construction structure, a ventilation layer is formed between the outer wall plate and the structural body, and thus the outer wall construction is excellent in air permeability. Therefore, it is possible to prevent the deterioration of the structural body and the outer wall plate.

Also in the case of the outer wall construction structure described above, the joint treatment member can be constructed in order to prevent the infiltration of water from the joint portion. However, in the outer wall construction structure, a gap is created between the outer wall plate and the structural frame as described above, and should water enter between the joint treatment member and the outer wall plate, this will cause a gap in the outer wall plate. May reach the underside or structural body. This may deteriorate the structural body and the outer wall plate.

The present invention has been made in view of the above conventional problems, and an object of the present invention is to provide an outer wall construction structure which is excellent in waterproofness and easy to construct.

[0010]

According to a first aspect of the present invention, a plurality of outer wall plates are fixed to a structural body of a building via fastening metal fittings, and joint treatment is performed at joints between the outer wall plates adjacent to each other on the left and right. In an outer wall construction structure in which members are arranged, the joint treatment member is a receiving plate member fixed to the structural body,
And a fitting member that is fitted and fixed to the receiving plate member,
The receiving plate member includes a strip-shaped base plate portion, a pair of wall strips formed along the longitudinal direction of the base plate portion, and an elastic backup material provided outside the wall strips. And a fitting groove portion for fitting the fitting member between the pair of wall strip portions, and a water passage groove between the wall strip portion and the backup member, On the other hand, the fitting member has an elastic surface joint forming portion for closing the joint portion, and a ridge portion provided along the length direction of the surface joint forming portion, and In the outer wall construction structure, the back side surface of the side wall of the outer wall plate is brought into close contact with the backup material, the convex ridge portion of the fitting member is fitted into the fitting groove portion of the receiving plate member, and the surface joint is formed. The part should be adhered to the end face of the outer wall plate, and In external wall construction structure characterized by comprising forming a water channel with the above receiving plate member and the fitting member and the external wall plate.

What is most noticeable in the present invention is that a water guide channel is formed by the receiving plate member, the fitting member and the outer wall plate. That is, the headrace
It is obtained by closing the water passage groove of the receiving plate member from the front side in the outer wall construction structure by the outer wall plate and the fitting member. Further, the receiving plate member may be fixed to the structural body via, for example, a furring strip, or may be directly fixed. Further, the structural body is preferably made of wood, but may be made of other materials such as metal.

Next, the function and effect of the present invention will be described.
As described above, in the outer wall construction structure, the surface joint forming portion of the fitting member is brought into close contact with the end surface of the outer wall plate. Therefore, it is possible to prevent water from seepage between the adjacent outer wall plates.

The outer wall construction structure forms the water conduit as described above. A part of the water conduit is formed by bringing the back surface of the side wall of the outer wall plate into close contact with the backup material. That is, the water conduit is a space that is shielded from the structural body and the back side surface of the outer wall plate excluding the side end portions. Therefore, in the joint portion, even if water intrudes between the surface joint forming portion and the end surface of the outer wall plate, the water flows downward through the water conduit to the back side of the outer wall plate. There is no danger of reaching the surface or the structural body. Therefore, the above-mentioned outer wall construction structure is excellent in waterproofness, and there is no possibility of causing deterioration of the outer wall plate and the structural body due to flooding.

Further, the treatment of the joint portion in the outer wall construction structure can be carried out by constructing the joint treatment member. That is, for example, by fixing the receiving plate member to the furring strip attached to the structural body, constructing the outer wall plate, and then fitting the fitting member to the receiving plate member, the joint portion can be easily treated. be able to. Therefore, the outer wall construction structure can be easily constructed.

Further, since the backup material has elasticity, it is easy to bring the back side surface of the side end portion into close contact with the backup material when constructing the outer wall plate. That is, even if there is some dimensional deviation in the front-rear direction of each member such as the fastening metal fittings and the furring strip, the deviation can be absorbed by the elasticity of the backup material, and the outer wall plate can be used as a backup material. It can be firmly attached to the construction. Therefore, it is possible to obtain an outer wall construction structure that is easier to construct and has excellent waterproofness.

As described above, according to the present invention, it is possible to provide an outer wall construction structure which is excellent in waterproofness and easy to construct.

Next, as in the invention described in claim 2, in the design surface of the surface joint forming portion in the fitting member, the center portion in the width direction has a groove color different from the color of the surface of the outer wall plate. It is preferable that the other part has an outer wall surface color that is substantially the same as the surface of the outer wall plate. As a result, it is possible to obtain an outer wall construction structure having an excellent appearance design.

That is, when the fitting member is applied to the joint portion of the outer wall plate, the central portion of the surface joint forming portion having the groove color is used as the bottom surface of the joint portion, and both of the surface joint forming portion having the outer wall surface color are used. The side portion can be a portion that comes into close contact with the end surface of the outer wall plate. Therefore, the joint processing member can be fused to the outer wall plate without any discomfort, and a three-dimensional effect can be exhibited.

Further, even when the joint width is slightly widened due to a cutting dimension error of the outer wall plate used for the butt joint, the width of the groove color at the center of the surface joint forming portion, which is the bottom of the joint, is constant. Therefore, the joint width does not appear to be widened, and the joint width appears to be constant.
The groove color is, for example, a color darker than the outer wall surface color, and may be gray, black, or the like.

Next, as in the invention described in claim 3, it is preferable that the substrate portion of the receiving plate member is formed by coating the surface of a core material made of steel with synthetic rubber. As a result, the receiving plate member is provided with water resistance, strength is ensured, and fixing to the structural frame is facilitated.

Next, as in the invention described in claim 4, it is preferable that the fitting member is made of synthetic rubber.
As a result, the fitting member has water resistance, can be easily fitted to the receiving plate member, and can be surely brought into close contact with the outer wall plate. Therefore, it is possible to obtain an outer wall construction structure that is easier to construct and has excellent waterproofness.

Next, as in the invention described in claim 5, it is preferable that the backup material is a resin foam. This makes it possible to bring the outer wall plate into close contact with the backup material easily and reliably. Therefore, it is possible to obtain an outer wall construction structure that is easier to construct and has excellent waterproofness.

Further, since the backup material has flexibility, even when the fastening metal fittings must be installed so as to hang on the base plate portion of the receiving plate member, the fastening metal fittings can be formed without causing unevenness. Can be installed on the furring strip. That is, when the fastening member is pressed down, the flexible backup material is sufficiently deformed, which does not hinder the construction.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1 FIG. 1 shows an outer wall construction structure according to an embodiment of the present invention.
~ It demonstrates using FIG. As shown in FIGS. 1 to 3, the outer wall construction structure 1 of the present example has a plurality of outer wall plates 2 fixed to a structural body 10 of a building through fastening metal fittings 11, and the left and right outer wall plates adjacent to each other. The joint processing member 3 is arranged in the joint portion 17 between the two. 3 is a view corresponding to a cross section taken along the line AA of FIG. 2, and FIG. 1 is a view corresponding to a cross section taken along the line BB of FIG.

As shown in FIG. 4, the joint treatment member 3 includes a receiving plate member 31 fixed to the furring strip 14 attached to the structural frame 10 and a fitting member 32 fitted and fixed to the receiving plate member 31. Become. As shown in FIGS. 5 and 6, the receiving plate member 31 includes a strip-shaped substrate portion 311 and a pair of wall strip portions 3 formed along the longitudinal direction of the substrate portion 311.
12 and a backup material 313 having elasticity provided on the outer sides of both wall strips 312. Further, a fitting groove 314 for fitting the fitting member 32 is provided between the pair of wall strips 312, and the wall strip 31 is also provided.
2 and the backup material 313 between the water passage 315.
Are formed.

On the other hand, as shown in FIGS. 7 and 8, the fitting member 32 has an elastic surface joint forming portion 321 for closing the joint portion 17, and a longitudinal direction of the surface joint forming portion 321. And a ridge portion 322 provided along.

As shown in FIG. 4B, in the outer wall construction structure 1, the back surface 22 at the side end portion 21 of the outer wall plate is brought into close contact with the backup material 313. And
The protrusions 322 of the fitting member 32 are fitted into the fitting groove 314 of the receiving plate member 31, and the surface joint forming portion 321 is brought into close contact with the end surface 23 of the outer wall plate 2.

As shown in FIG. 4 (B), the receiving plate member 31, the fitting member 32, and the outer wall plate 2 form a water conduit 13. That is, the headrace 13
Is obtained by closing the water passage groove 315 of the receiving plate member 31 from the front side of the outer wall construction structure 1 by the outer wall plate 2 and the fitting member 32. As shown in FIG. 2, the joint treatment member 3 has a joint portion 17 in the vertical direction.
And the water conduit 13 is formed vertically along the water conduit 13.

As shown in FIGS. 7 and 8A, the design surface 3 of the surface joint forming portion 321 of the fitting member 32.
The central portion 324 in the width direction 23 has a groove color different from the color of the surface of the outer wall plate 2. The side portions 325, which are the other portions, have an outer wall surface color that is substantially the same as the surface of the outer wall plate 2. For example, the groove color is gray and the outer wall surface color is beige (camel color).

The surface joint forming portion 321 is shown in FIG.
(A) As shown in FIG. 7, a rubber sheet 329 having a gray central portion and beige belts on both sides thereof is thermocompression-bonded to a base portion 320 integrally formed with the ridge portion 322. Thereby, the design surface 323 of the surface joint forming portion 321
Are color coded into beige and gray as above.

Further, as shown in FIG. 4B, the fitting member 32 of the joint treatment member 3 fitted to the joint portion 17 of the outer wall plate 2 has the both side portions 325 of the surface joint forming portion 321 at the central portion. It is bent substantially at right angles to 324 and is in close contact with the end surface 23 of the outer wall plate 2. In addition, FIG.
As shown in FIG. 3, the protruding strip 322 of the fitting member 32 is formed with two pairs of protruding strips 326 on the left and right sides thereof.
As shown in FIG. 4B, in the state where the convex strip 322 is fitted in the fitting groove 314 of the receiving plate member 31, the projecting strip 326 is the wall strip 312 of the receiving plate member 31.
To prevent it from coming off. That is, the protruding ridge 322 is fitted in the fitting groove 314 in a state where the protruding ridge 326 is biased by the elasticity in a direction to expand.

As shown in FIGS. 4 and 5, the base plate portion 311 of the receiving plate member 31 has a core member 316 made of steel.
The surface of is coated with a synthetic rubber such as PVC (polyvinyl chloride). The fitting member 322 is made of synthetic rubber such as chlorosulfonated polyethylene. The backup material 313 is a closed cell type resin foam, and is adhered to the substrate portion 311 via an adhesive 317.

Further, in the outer wall construction structure 1 of this example,
As shown in FIGS. 1 to 3, the outer wall plate 2 is fixed to a furring strip 14 attached to the structural body 10 via a fastening member 11. That is, the fastener 11 is fixed to the furring strip 14 by the nail 111, and the outer wall plate 2 is
The upper end portion 24 and the lower end portion 25 are fixed to the fastening fitting 11
It is engaged and fixed to. The furring strip 14 is the structural body 1
It is vertically fixed to the pillar 15 of 0, and the waterproof paper 16 is interposed between the furring strip 14 and the pillar 15 (FIG. 1).

Further, as shown in FIG. 3, a lower solid portion 241 is formed on the upper end portion 24 of the outer wall plate 2 and an upper solid portion 251 is formed on the lower end portion 25 thereof. In the outer wall construction structure 1 described above, the upper solid portion 251 of the upper outer wall plate 2 and the lower solid portion 241 of the lower outer wall plate 2 are joined to each other. And in Figure 2,
As shown in FIG. 3, the caulking material 26 cast on the lower solid portion 241 is pressed by the back side surface of the upper solid portion 251 to form a structure for preventing rainwater from entering.

Further, as shown in FIG. 3, stepped notches 271 are provided on the front side surfaces of the lower end portion 25 and the upper end portion 24 of the outer wall plate 2, and a lateral joint portion 27 is formed by both. Further, as shown in FIG. 2, lateral groove portions 28 are formed on the front side surface 29 of the outer wall plate 2 at predetermined intervals. On the front side surface 29 of the outer wall plate 2, the lateral joint portion 2 is formed.
A beige coating layer 290, which is the surface color of the outer wall, is formed except for 7 and the lateral groove portion 28. Further, the lateral joint portion 27 and the lateral groove portion 28 are coated with gray, which is the groove color.

Next, a construction method of the outer wall construction structure of this example will be described with reference to FIGS. That is, first, the receiving plate member 31 of the joint treatment member 3 is attached to the furring strip 14 of the structural body 10.
Then, nail it and fix it. In addition, the above-mentioned fastener 11
Is fixed to the furring strip 14 with nails 111.

Next, as shown in FIG. 4 (A), the left and right outer wall plates 2 and 2 are brought into close contact with the back side surfaces 22 at the respective side end portions 21 of the backup material 313, and the fastening metal member 11 is attached. It is fixed to the structural body 10 through the above. Next, as shown in FIGS. 4B and 2, the fitting member 32 is connected to the joint portion 1 between the adjacent outer wall plates 2.
Fit in 7. At this time, as shown in FIG. 4 (B), the protrusions 322 of the fitting member 32 are attached to the receiving plate member 3
No. 1 fitting groove 314, and both side portions 325 of the surface joint forming portion 321 are attached to the end surface 23 of the outer wall plate 2.
In close contact with.

Next, the function and effect of this example will be described. As described above, in the outer wall construction structure 1, the surface joint forming portion 321 of the fitting member 32 is connected to the end surface 23 of the outer wall plate 2.
Is in close contact with. Therefore, it is possible to prevent water from seeping from the joint portion 17 between the adjacent outer wall plates 2.

Further, the outer wall construction structure 1 forms the water conduit 13 as described above (FIG. 4 (B)). And, a part of the water conduit 13 is provided with the backup material 31.
It is formed by closely adhering the back side surface 22 at the side end 21 of the outer wall plate 2 to the outer wall plate 3. That is, the headrace 13
Is a space that is shielded from the structural body 10 and the back side surface 22 of the outer wall plate 2 excluding the side end portions 21.

Therefore, in the joint portion 17, even if water intrudes from between the surface joint forming portion 321 and the end surface 23 of the outer wall plate 2, the water will pass downward through the water conduit 13. There is no possibility that it will flow to the back side surface 22 of the outer wall plate 2 and reach the structural body 10. Therefore, the outer wall construction structure 1 is excellent in waterproofness, and there is no possibility of causing deterioration of the outer wall plate 2 and the structural body 10 due to flooding.

The treatment of the joint portion 17 in the outer wall construction structure 1 can be performed by constructing the joint treatment member 3. That is, the receiving plate member 31 is fixed to the furring strip 14, the outer wall plate 2 is constructed by the fastening fittings 11, and then the fitting member 32 is fitted to the receiving plate member 31, whereby the joint portion 17 is formed. Can be easily processed. Therefore, the outer wall construction structure 1 can be easily constructed.

Since the backup material 313 has elasticity, it is easy to bring the back side surface 22 into close contact with the backup material 313 when constructing the outer wall plate 2. That is, the fastener 11 and the furring strip 1 described above
Even if there is some dimensional deviation in the front-back direction for each member such as 4,
Due to the elasticity of the backup material 313, the deviation can be absorbed, and the outer wall plate 2 is used as the backup material 3
It is possible to make sure that the work piece 13 is closely attached. Therefore, it is possible to obtain the outer wall construction structure 1 that is easier to construct and has excellent waterproofness.

Further, since the backup material 313 has elasticity, the back side surface 22 at the side end portion 21 of the outer wall plate 2 can be mounted even when the fastening fitting 11 is mounted so close to the receiving plate member 311. Can be reliably brought into close contact with the backup material 313.

In the design surface 323 of the surface joint forming portion 321 of the fitting member 32, the central portion 324 in the width direction has a groove color (gray) different from the color of the surface of the outer wall plate 2, and other than that. Both side portions 325, which are portions, have an outer wall surface color (beige) that is substantially the same color as the surface of the outer wall plate 2. Therefore, the outer wall construction structure 1 using the joint treatment member 3 can have excellent appearance and design.

That is, as shown in FIG. 4 (B), when the fitting member 32 is applied to the joint portion 17 of the outer wall plate 2, the central portion 324 of the surface joint forming portion 321 having the groove color is connected to the joint portion 17 of the joint portion 17. Both sides 325 of the surface joint forming portion 321 having the outer wall surface color can be used as a bottom surface and a portion in close contact with the end surface 23 of the outer wall plate 2. Therefore, the joint treatment member 3 is fused to the outer wall plate 2 without any uncomfortable feeling, and
It is possible to express a three-dimensional effect. That is, the joint portion 17 on which the joint treatment member 3 is disposed is the front side surface 2 of the outer wall plate 2.
The lateral groove portion 28 and the lateral joint portion 27 formed in No. 9 can have the same appearance.

Further, even when the joint width is slightly widened due to a cutting dimension error of the outer wall plate 2 used for the butt joint, the surface joint forming portion 321 serving as the bottom surface of the joint portion 17 is formed.
Since the width of the groove color of the central portion 324 is constant, the joint width does not appear to be widened, and the joint width looks uniform.

Further, the base plate portion 311 of the receiving plate member 31.
Since the surface of the core material 316 made of steel is coated with synthetic rubber, the strength of the receiving plate member 31 can be ensured and the fixing to the structural body 10 becomes easy. Further, since the fitting member 32 is made of synthetic rubber, the fitting member 31 can be easily fitted to the receiving plate member 31 and can be surely brought into close contact with the outer wall plate 2. Therefore, it is possible to obtain the outer wall construction structure 1 that is easier to construct and has excellent waterproofness.

Since the backup material 313 is a resin foam, the outer wall plate 2 can be easily and reliably brought into close contact with the backup material 313. Therefore, it is possible to obtain an outer wall construction structure that is easier to construct and has excellent waterproofness. In addition, since the backup material 313 has flexibility, even when the fastening metal fitting 11 has to be installed so as to hang on the base plate portion 311 of the receiving plate member 31, the fastening member 11 does not cause the unsteady state. The metal fitting 11 can be applied to the furring strip 14. That is,
When it is pressed down by the fastening fitting 11, the flexible backup material 313 is sufficiently deformed, which does not hinder the construction.

[0049]

As described above, according to the present invention, it is possible to provide an outer wall construction structure which is excellent in waterproofness and easy to construct.

[Brief description of drawings]

FIG. 1 is a sectional perspective view of an outer wall construction structure according to an embodiment.

FIG. 2 is a front view of the outer wall construction structure according to the embodiment.

3 is a cross-sectional view of an outer wall construction structure corresponding to a cross section taken along the line AA of FIG.

FIG. 4 is an explanatory view of the joint treatment member before (A) the fitting member is fitted and (B) after the fitting member is fitted in the embodiment example.

FIG. 5 is a perspective view of a receiving plate member according to the embodiment.

FIG. 6 is a plan view of the receiving plate member according to the embodiment.

FIG. 7 is a perspective view of a fitting member according to the embodiment.

FIG. 8A is a plan view of the fitting member on the front surface side, and FIG.

[Explanation of symbols]

1. ． ． Exterior wall construction structure, 10. ． ． Structural frame, 11. ． ． Fastening hardware, 13. ． ． Headrace, 17. ． ． Joint, 2. ． ． Exterior wallboard, 21. ． ． Side edge, 22. ． ． Back side, 23. ． ． End face, 3. ． ． Joint treatment material, 31. ． ． Backing plate member, 311. ． ． Board part, 312. ． ． Wall strip, 313. ． ． Backup material, 314. ． ． Mating groove, 315. ． ． Water ditch, 32. ． ． Fitting member, 321. ． ． Surface joint formation part, 322. ． ． Ridge,

Claims (5)

(57) [Claims] 1. An outer wall construction structure in which a plurality of outer wall plates are fixed to a structural body of a building through fastening metal fittings, and joint treatment members are arranged in joints between the outer wall plates adjacent to each other on the left and right. In the above, the joint treatment member includes a receiving plate member that is fixed to the structural frame and a fitting member that is fitted and fixed to the receiving plate member, and the receiving plate member is a strip-shaped base plate portion and a base plate portion of the base plate portion. The fitting member is provided with a pair of wall strips formed along the longitudinal direction and a backup material having elasticity provided outside the wall strips, and between the pair of wall strips. And a water passage between the wall strip and the backup material, while the fitting member has an elastic force for closing the joint. Surface joint formation part having properties and the surface joint formation part And a ridge portion provided along the length direction of the outer wall plate, and the outer wall construction structure makes the back surface of the side wall portion of the outer wall plate closely adhere to the backup material.
The projecting ridge portion of the fitting member is fitted in the fitting groove portion of the receiving plate member, and the surface joint forming portion is closely attached to the end surface of the outer wall plate for construction. An outer wall construction structure characterized in that a water conduit is formed by the fitting member and the outer wall plate. 2. The design surface of the surface joint forming portion of the fitting member according to claim 1, wherein the center portion in the width direction has a groove portion color different from the surface color of the outer wall plate, and the other portions are the above. An outer wall construction structure having an outer wall surface color that is substantially the same as the surface of the outer wall plate. 3. The outer wall construction structure according to claim 1, wherein the base plate portion of the receiving plate member is formed by coating a surface of a core material made of steel with synthetic rubber. 4. The method according to claim 1, wherein
The outer wall construction structure, wherein the fitting member is made of synthetic rubber. 5. The method according to any one of claims 1 to 4,
The outer wall construction structure, wherein the backup material is a resin foam.