JPH08232354A - Joint structure of internal corner of exterior wall - Google Patents

Abstract

PURPOSE: To improve waterproofness construction efficiency, and design of an internal corner of exterior wall. CONSTITUTION: Ends of joining sides of exterior wall boards 21 constituting an internal corner of exterior wall are shaved symmetrically with each other to form vertically extending belt-like flat surfaces 26. And end surfaces 27 of the boards 21 are obliquely cut off to form a wedge-shaped space tapered outwards toward the surface of the board and the angle between the end surface 27 and the rear surface of the board 21 is set at 25-40 deg.. And a step 29 is formed at an end on the surface side of the surface 27 so as to narrow the width of opening of the space. Caulking compound is put in the space between the surfaces 27 and an elastic cap material of rubber 31 is forced into the space and the step 29 of the surface 27 prevents the material 31 from coming out. The cap material 31 is closely attached to the step 29 to seal the opening of the space. And an elastic joiner of rubber, in place of the caulking material, may be forced into the space between the surfaces 27.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a joint structure of a corner portion of an outer wall with improved workability and designability.

[0002]

2. Description of the Related Art In recent years, as a projecting corner member attached to a projecting corner portion of a building using a ceramic exterior wall plate, there is a case in which two plate materials are cut and bonded in an L shape by factory production and shipped. On the other hand, the number of entrance corners of the building is smaller than that of the exit corner, and in a normal house there are 1 to 2 places around the entrance,
The corner members are often cut and cut at the construction site to be assembled. From this relationship, in the conventional corner portion, the outer surface of the outer wall plate extending from the left and right sides is joined in an L-shape, and the joint portion is subjected to a simple caulking treatment, or as shown in FIG. There is one in which the joiner 11 is nailed to the base material 12 at the entry corner with the nail 13 and the end portion of the outer wall plate 14 is fitted and fixed in the fitting groove of the aluminum joiner 11.

[0003]

However, since almost all of recent outer wall plates have uneven patterns on the surface, it is difficult to fill the caulking material by imitating the uneven pattern on the surface, and it is not a considerable skill of a person skilled in the art. Therefore, there is a drawback that it cannot be filled well, and the appearance of the finished product becomes poor. Moreover, as shown in FIG. 5, a ready-made aluminum joiner 1
In the method of fitting the end portion of the outer wall plate 14 into the outer wall plate 14,
There is a defect that a gap is formed between the uneven pattern on the surface and the aluminum joiner 11, and rainwater penetrates from there, resulting in poor waterproofness.

Further, as a publicly known example aimed at improving waterproofness and designability, as shown in Japanese Utility Model Publication No. 2-43146 (see FIG. 6), a mounting bracket 16 is provided at the corner of the outer wall plate 14 with a nail 17.
In some cases, the mounting pieces 16 are mounted by engaging the engaging pieces 18 on both side edges of the mounting bracket 16 with the flange portions 20 on both side edges of the entry corner cover 19. However, even with this configuration, when an uneven pattern is formed on the surface of the outer wall plate 14, a gap is created between the flange portion 20 of the entry corner cover 19 and the uneven pattern on the wall surface, and rainwater from the gap exists. Can't be prevented.

The present invention has been made in consideration of such circumstances, and its purpose is to provide waterproofness, workability, and
An object of the present invention is to provide a joint structure of a corner portion of an outer wall which has a design triplet.

[0006]

In order to achieve the above-mentioned object, the joining structure of the outer wall entering corner portion according to claim 1 of the present invention has a joining side end of two outer wall plate surfaces constituting the outer wall entering corner portion. The parts are symmetrically cut to form a vertically extending strip-shaped flat surface, and the outer surfaces of both outer wall plates are opened so as to form a space between the outer surfaces of both outer wall plates. Is cut into a slanted shape, and a step portion is formed at the end on the surface side of the wood mouth surface to narrow the opening width of the space portion, and the space portion is filled with caulking material to seal the opening of the space portion. The lid member is locked at the step.

According to a second aspect of the present invention, an elastic joiner is loaded in the space instead of the caulking material, and the elastic joiner closes the opening of the space and is locked by the step. The elastic seal portion may be formed. In any of these cases, it is preferable that the angle between the back surface of the outer wall plate and the cusp surface is set to 25 degrees to 40 degrees.

[0008]

According to the above-mentioned structure of the first aspect, the joining-side end portions of the two outer wall plate surfaces are symmetrically cut to form the vertically extending strip-shaped flat surface. This strip-shaped flat surface acts like a decorative groove that gives a design accent to the entering corner, and has the effect of making the wall surface look larger. As for workability, the outer wall plates on the left and right of the entering corner are brought into contact with each other and fixed to the base material with nails, screws, and metal fittings, and then the caulking material is filled in the space between the openings of both outer wall plates. At this time, if a masking tape for preventing dirt is temporarily adhered to the strip-shaped flat surface of the outer wall plate and the caulking material is filled in advance, the strip-shaped flat surface will not be stained with the caulking material. Moreover, since the surface of the entering corner is a belt-shaped flat surface, it is not necessary to fill the caulking material by following the uneven pattern as in the conventional case, and the filling of the caulking material is very easy. After the filling of the caulking material, the elastic lid member is fitted into the opening of the space portion, and the elastic lid member is locked at the step portion of the wood mouth surface of both outer wall plates, whereby the construction of the corner portion is completed.
With this configuration, the elastic lid member and the caulking member can be double waterproofed, and the waterproof property is also improved.

According to the second aspect of the invention, when the elastic joiner is pressed into the space between the ostium surfaces of the outer wall plates instead of the caulking material, the elastic seal portion formed on the elastic joiner seals the opening of the space. Moreover, the state is locked to the step.
In this case, the construction of the inside corner portion is completed only by loading the elastic joiner, so that the construction is further simplified.

According to the third aspect of the present invention, by setting the angle between the back surface of the outer wall board and the mouth end surface at 25 degrees to 40 degrees, the space between the mouth ends of both outer wall boards is filled with caulking material or elastic. The size is just right for press-fitting the joiner. That is, when the angle is less than 25 degrees, the opening area of the space between the wood mouth surfaces becomes too large and the appearance becomes poor, and the wall thickness of the wood mouth surface (inclined surface) becomes too thin and the strength becomes weak. It is easy to chip or crack. If it is 40 degrees or more, the space between the wood mouth surfaces becomes too narrow, which makes it difficult to fill the caulking material and press-fit the elastic joiners and reduce the waterproofness.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. First, the attachment structure of the ceramic outer wall plate 21 forming the outer wall entry corner will be described with reference to FIG. A waterproof sheet 23 is sandwiched between the columns 22 by vertical furring strips 24 and is fixed with nails or the like. The laterally long outer wall plate 21 is attached to the vertical furring strip 24 by using a fastening metal fitting 25 by a lateral sticking method. An uneven pattern is formed on the surface of the outer wall plate 21.

As shown in FIGS. 1 and 2, the joint-side ends of the surfaces of the two outer wall plates 21 forming the corners of the outer wall are symmetrically cut to form a vertically extending strip-shaped flat surface 26. are doing. Then, the wood mouth surface 27 is cut in a slanted manner so as to form a wedge-shaped space portion that widens toward the front surface between the wood mouth surfaces 27 of both outer wall boards 21, and the wood mouth surface 27 and the back surface of the outer wall board 21 The angle is set to 25 to 40 degrees. Also,
A step portion 29 that narrows the opening width of the space portion is formed at the end portion on the surface side of the mouth end surface 27. Caulking material 30 in the space
And the elastic lid member 31 made of rubber is press-fitted into the opening of the space portion, and the elastic lid member 31 is prevented from coming off at the step portion 29 of the wood mouth surface 27. The elastic lid member 31 is in close contact with the step portion 29 to seal the opening of the space portion.

Next, the construction procedure will be described. The joint-side ends of the two outer wall plates 21 are symmetrically cut to form a vertically extending strip-shaped flat surface 26, and at the same time, a cut end surface 27.
And the back surface of the outer wall plate 21 is cut at an angle θ of 25 to 40 degrees. Furthermore, in order to improve the adhesion between the wood surface 27 and the caulking material 30, the wood surface 27 is treated with a primer. After that, the outer wall plates 21 on the left and right of the entering corners are brought into contact with each other and fixed to the vertical furring strips 24 with fastening metal fittings 25, nails, screws, etc. Fill 30. At this time, if a masking tape (not shown) for preventing dirt is temporarily adhered to the strip-shaped flat surface 26 of the outer wall plate 21 in advance and the caulking material 30 is filled with the strip-shaped flat surface 26, the strip-shaped flat surface 26 may be soiled with the caulking material 30. Absent. After filling the caulking material 30, the elastic lid material 31 is fitted into the opening of the space filled with the caulking material 30,
The elastic lid member 31 is formed by the step portion 29 of the front end surface 27 of both outer wall plates 21.
After locking, the masking tape is peeled off, and the construction of the inside corner is completed.

According to the embodiment described above, the outer wall plate 21
Since the band-shaped flat surface 26 is machined at the end on the joining side of the surface, the band-shaped flat surface 26 acts like a decorative groove to give a design accent to the entering corner, making the wall surface look large. effective. Moreover, the design of the joint portions of both outer wall plates 21 does not become uneven, and the joint portions of both outer wall plates 21 can be unified in design by the band-shaped flat surface 26, and the designability can be improved. Moreover, when the caulking material 30 is filled, the masking tape is temporarily adhered to the strip-shaped flat surface 26 of the outer wall plate 21, so that the strip-shaped flat surface 26 can be finished beautifully without being contaminated with the caulking material 30.

Further, regarding workability as well, by cutting the band-shaped flat surface 26 at the joint side end portion of the surface of the outer wall plate 21,
Unlike the conventional case, it is not necessary to fill the caulking material 30 according to the uneven pattern, and the filling of the caulking material 30 is very easy. Moreover, after the caulking material 30 is filled, the elastic lid material 31 is simply fitted into the opening of the space filled with the caulking material 30, so that the construction is easy.

Further, the joint portion of both outer wall plates 21 is connected to the elastic lid member 3.
Double waterproofing can be achieved by the 1 and the caulking material 30, and the waterproofness of the joint portion can also be improved. In this case, before filling the caulking material 30, the outer surface 2 of the outer wall plate 21
If 7 is subjected to a primer treatment, the adhesion between the wood mouth surface 27 and the caulking material 30 can be maintained well, joint cracks are less likely to occur, and durability can be improved.

By the way, the back surface of the outer wall plate 21 and the entrance 27
If the angle between and is less than 25 degrees, the opening area of the space between the wood mouth surfaces 27 becomes too large and the appearance becomes poor, and the wall thickness of the wood mouth surface 27 (inclined surface) becomes too thin, The strength is weakened, and chips or cracks easily occur. Further, when the angle is 40 degrees or more, the space between the wood mouth surfaces 27 becomes too narrow, the filling of the caulking material 30 becomes difficult, and the waterproof property deteriorates.

In this respect, in the above-mentioned embodiment, the angle between the back surface of the outer wall plate 21 and the mouth surface 27 is set to 25 to 40 degrees, so that the size of the space between the outer surface boards 21 and the mouth surface 27 is large. Is a size that is suitable for filling the caulking material 30 while ensuring the appearance and the strength of the mouthpiece surface 27, and the caulking material 30 can be spread to every corner of the space portion. It is possible to ensure close contact (adhesion) with the surface 27, which contributes to improvement in waterproofness.

In the first embodiment described above, the caulking material 30 is filled in the space, but the second embodiment of the present invention shown in FIG.
As in the embodiment, the rubber elastic joiner 32 may be press-fitted into the space. In this case, the elastic joiner 3
An elastic seal portion 33 that seals the opening of the space portion and is locked by the step portion 29 and an inner seal piece 34 that is pressed against the wood mouth surface 27 are integrally formed in the unit 2.

In the second embodiment, the construction is completed by simply press-fitting the elastic joiner 32 into the space, so that the first
The construction is simpler than the embodiment. Further, since the elastic seal portion 33 formed on the elastic joiner 32 seals the opening of the space and the inner seal piece 34 presses against the wood mouth surface 27, sufficient waterproofness can be ensured. Also in this case, the angle between the back surface of the outer wall plate 21 and the mouth surface 27 is 25 degrees or more.
By setting it to 40 degrees, the size of the space portion is just a good size for press-fitting the elastic joiner 32 of a size necessary for ensuring waterproofness.

The shape of the elastic joiner 32 is not limited to the shape shown in FIG. 4. For example, the elastic joiner is formed into a wedge shape according to the shape of the space, and the contact area between the elastic joiner and the wood mouth surface 27 is increased. The shape of the elastic joiner may be modified in various ways, such as by enlarging.

Further, the strip-shaped flat surface 26, the mouth end surface 27, and the step portion 29 formed at the end portion on the joint side of the outer wall plate 21 may be cut at the factory or at the construction site. Is also good.

[0023]

As is apparent from the above description, according to the configuration of claim 1 of the present invention, the design accent is applied to the corner portion by the band-shaped flat surface cut on the joining side end portion of the outer wall plate surface. It is possible to improve the design, since the joint portion of both outer wall plates can be unified in terms of design with a belt-shaped flat surface. Moreover, unlike the conventional case, it is not necessary to fill the caulking material by following the uneven pattern, the filling of the caulking material is easy, and the workability can be improved. Further, the joint between the two outer wall plates can be double waterproofed by the elastic lid member and the caulking material, and the waterproofness of the joint can be improved.

Further, in claim 2, since the construction is completed only by press-fitting the elastic joiner into the space portion, the above-mentioned claim 1
It is even easier to install. Further, in claim 3, since the angle between the back surface of the outer wall board and the mouth surface is set to 25 degrees to 40 degrees, the size of the space portion between the outer surface boards and the mouth surface is determined by the appearance and the strength of the wood surface. The size is just right for filling caulking material and press-fitting elastic joiner while ensuring
This leads to improved workability and waterproofness.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a corner portion showing a first embodiment of the present invention.

FIG. 2 is a perspective view of a joint side portion of an outer wall plate.

FIG. 3 is a perspective view showing the entire inside corner of the building.

FIG. 4 is a transverse cross-sectional view of a corner portion showing a second embodiment of the present invention.

FIG. 5 is a cross-sectional view of a conventional entry corner portion.

FIG. 6 is a cross-sectional view of a conventional improved corner portion.

[Explanation of symbols]

21 ... Outer wall plate, 24 ... Vertical furring strip, 26 ... Belt-shaped flat surface, 27
... Kiguchi surface, 29 ... Step portion 29, 30 ... Caulking material, 31 ... Elastic lid material, 32 ... Elastic joiner, 33 ... Elastic seal portion, 34 ... Internal seal piece.

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] February 28, 1995

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

Claims (3)

[Claims] 1. A laterally symmetrical cutting work is performed on the joint side ends of the surfaces of the two outer wall plates forming the corners of the outer wall so as to form a vertically extending strip-shaped flat surface, and between the ostium surfaces of both outer wall plates. The outer surface of the outer wall plate is cut into a slanted surface so as to form a space portion that expands toward the front surface side, and a step portion that narrows the opening width of the space portion is provided at the surface side end portion of the wood surface. A joint structure for entering a corner portion of an outer wall, characterized in that a caulking material is formed in the space portion and an elastic lid material for sealing an opening of the space portion is locked at the step portion. 2. An elastic joiner is loaded in the space instead of the caulking material, and the elastic joiner is formed with an elastic seal part that seals the opening of the space and is locked by the step. The joint structure of the corner portion of the outer wall according to claim 1. 3. The angle between the back surface of the outer wall plate and the mouth surface is 2
It is set to 5 degrees to 40 degrees, The joint structure of the corner portion of the outer wall according to claim 1 or 2, which is characterized in that.