JP2021110186A - Joiner, and wall structure - Google Patents

Abstract

To provide a joiner capable of properly suppressing the generation of swelling of the sealant, and a wall structure.SOLUTION: A joiner 2 arranged at the joint 10 between the adjacent wall materials 6 has a receiving surface 20 that receives a sealant 7. In the receiving surface 20, a portion of an unevenness 62 formed on the surface of the wall material 6 corresponding to a concave portion 63 is located closer to a wall base 5 with respect to the portion of the unevenness 62 corresponding to a convex portion 64.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a joiner and a wall structure comprising the joiner.

Patent Document 1 discloses an outer wall joint structure of a building. In this outer wall joint structure, a plurality of hollow portions are provided in the exterior plate material laid on the base material. These plurality of hollow portions have functions such as reducing the weight of the exterior plate material.

In this outer wall joint structure, the hollow portions of the exterior plate materials on both sides are opened facing each other in the joint grooves provided between the adjacent exterior plate materials. A communication member is attached to the bottom of the joint groove, and the inside of the joint groove is filled with a sealing material that covers the communication member.

The communicating member is made of a molded material formed by bending a thin metal plate, and has a square convex portion in the center. Vents are perforated in the convex portions, and the hollow portions of the adjacent exterior plate materials communicate with each other through the vents. Therefore, even if one exterior plate material locally heats up and the air in the hollow portion expands, the expanded air moves to the hollow portion of the adjacent exterior plate material via the communication member, and both hollow portions. The temperature or pressure of the air is equalized throughout the combined space. As a result, the air existing in the hollow portion heats up and expands and invades the sealing material, thereby preventing the generation of air bubbles in the sealing material.

JP-A-2002-54243 (paragraphs 0021, 0022, FIG. 4)

By the way, in the above-mentioned outer wall joint structure, for example, when unevenness as a pattern is formed on the surface of the exterior plate material, the distance from the communicating member receiving the sealing material to the surface of the exterior plate material corresponds to the concave portion of the unevenness. Is larger than the part corresponding to the convex part. Therefore, when the surface of the sealing material is finished so as to be substantially flush with the surface of the exterior plate material, the thickness of the portion of the sealing material corresponding to the recess of the exterior plate material becomes small, and the waterproof property of this portion by the sealing member. May decrease.

The present disclosure has been made in view of the above reasons, and an object of the present invention is to provide a joiner and a wall structure capable of suppressing the occurrence of swelling of a sealing material and suppressing a decrease in waterproofness of joints.

The joiner according to one aspect of the present disclosure is a joiner arranged at a joint between adjacent wall materials, and has a receiving surface for receiving a sealing material, and the receiving surface is formed on the surface of the wall material. The portion corresponding to the concave portion of the uneven surface is located closer to the base of the wall than the portion corresponding to the convex portion of the uneven surface.

Further, the wall structure according to one aspect of the present disclosure is a wall structure using the joiner, and the wall material has a hollow portion that opens toward the joint and corresponds to the convex portion in the jointer. The portion to be formed faces the opening of the hollow portion.

In the joiner and the wall structure according to the above aspect, the portion of the joiner corresponding to the convex portion of the wall material may be opposed to at least a part of the opening of the hollow portion formed in the portion corresponding to the convex portion of the wall material. This makes it difficult for the air from the hollow portion to press the sealing material, and the occurrence of swelling of the sealing material is suppressed. Further, since the portion of the receiving surface corresponding to the concave portion of the wall material is located closer to the base of the wall than the portion corresponding to the convex portion of the wall material, it is sufficient for the area corresponding to the concave portion of the wall material at the joint. An amount of sealant can be filled. Therefore, even when the surface of the sealing material is finished so as to be substantially flush with the surface of the uneven wall material, the thickness of the portion of the sealing material corresponding to the concave portion of the wall material is increased to make the joint waterproof. It is possible to suppress the deterioration of sex.

FIG. 1 is a perspective view of the wall structure according to the embodiment. 2A and 2B show the joiners provided in the same wall structure, FIG. 2A is a plan view, and FIG. 2B is a perspective view. FIG. 3 is a cross-sectional view taken along the line AA of FIG. FIG. 4 is a cross-sectional view taken along the line BB of FIG. FIG. 5 is a perspective view of the wall material included in the same wall structure. FIG. 6 is a cross-sectional view of the same wall structure. FIG. 7 is a cross-sectional view of the wall structure of the reference example.

(1) Embodiment The joiner 2 of the present embodiment is arranged at the joint 10 between the adjacent wall materials 6 and backs up the sealing material 7 filled in the joint 10, for example, as shown in FIG. Hereinafter, the wall structure 1 using the joiner 2 will be described in detail.

In the following, the directions in which a plurality of wall materials 6 are applied to the wall base 5 will be described. Specifically, the direction from the wall base 5 to the wall material 6 is the front, and the direction from the wall material 6 to the wall base 5 is the rear. Further, the left-right direction is defined with reference to the time when the wall structure 1 is viewed from the front.

The wall structure 1 shown in FIG. 1 includes a wall base 5, a joiner 2, and a plurality of wall materials 6. The wall structure 1 of the present embodiment is an outer wall structure, and a plurality of wall materials 6 are provided on the outdoor side of the wall base 5. The technique of the present invention can also be applied to an inner wall structure.

The wall base 5 is arranged along the surfaces of the plurality of pillars 50, the moisture-permeable waterproof sheet 51 attached to the outdoor side of the plurality of pillars 50, and the moisture-permeable waterproof sheet 51, and the moisture-permeable waterproof sheet 51 is provided. It has a plurality of furring strips 52 attached to the pillar 50 via a plurality of furring strips 52. Each furring strip 52 is attached to the pillar 50 using, for example, a fixture such as a nail or screw.

The joiner 2 has a shape extending linearly in one direction. The joiner 2 of the present embodiment extends linearly in the vertical direction parallel to the length direction of the joint 10, and a part of the joiner 2 is arranged at the joint 10. When joints are formed between wall materials adjacent to each other in the vertical direction, the joiner 2 may be arranged at these joints.

The joiner 2 has a joiner main body 3 and a backup material 4. The joiner body 3 is made of metal, and is formed by, for example, bending a steel plate. The material of the joiner body 3 is not limited. For example, the joiner body 3 may be formed of another metal such as aluminum, or may be formed of a synthetic resin.

The joiner body 3 extends linearly in the vertical direction. As shown in FIGS. 2A and 2B, the joiner main body 3 of the present embodiment has a hat-shaped cross-sectional shape orthogonal to the longitudinal direction. Specifically, the joiner main body 3 has a support portion 30 having a U-shaped cross section that opens rearward, and a pair of left and right fixing portions 31 that are connected to the support portion 30.

The support portion 30 projects forward from the pair of left and right fixed portions 31. The support portion 30 is a portion that supports the backup material 4 from behind. The support portion 30 extends in the vertical direction. The support portion 30 has a receiving portion 32 and a pair of side plate portions 33 and 34. The receiving portion 32 is formed in a plate shape extending in the vertical direction along the wall base 5 (see FIG. 1). As shown in FIGS. 3 and 4, the receiving portion 32 is located forward away from the wall base 5. The front surface of the receiving portion 32 is a plane orthogonal to the front-rear direction.

The pair of side plate portions 33, 34 project rearward from both ends in the left-right direction of the receiving portion 32, respectively. Each side plate portion 33, 34 extends over the entire length of the receiving portion 32 in the length direction (vertical direction).

The pair of fixing portions 31 project from the rear ends of the pair of side plate portions 33, 34 toward the outside in the left-right direction, respectively. The joiner 2 fixes, for example, each fixing portion 31 of the joiner body 3 to the wall base 5 with a fixing tool (not shown) such as a nail or a screw, so that the wall base 5 is shown in FIGS. 3 and 4. Attached to 5. The joiner body 3 may have only one fixing portion 31. Further, the means for attaching the joiner body 3 to the wall base 5 is not limited to the fixture, and may be, for example, an adhesive or tape.

A backup material 4 is attached to the joiner main body 3. The backup material 4 backs up the sealing material 7 and functions as a base for the sealing material 7. The backup material 4 is softer than the joiner body 3 and softer than the uncured sealing material 7 at the time of casting. The backup material 4 is formed of, for example, foamed resin, foamed rubber, or the like. The backup material 4 may be harder or softer than the cured sealing material 7.

As shown in FIG. 2B, the backup material 4 extends linearly in the vertical direction along the front surface of the receiving portion 32 of the joiner main body 3. The backup material 4 covers the entire length of the joiner main body 3 in the vertical direction. The backup material 4 is formed in a block shape extending in the vertical direction.

The width of the backup material 4 is smaller than the width of the front surface of the receiving portion 32 (the width of the supporting portion 30). The width of the backup material 4 may be the same as the width of the front surface of the receiving portion 32.

The backup material 4 is attached to the joiner main body 3, for example, by attaching the rear surface of the backup material 4 to the front surface of the receiving portion 32 of the joiner main body 3 using an adhesive, double-sided tape, or the like. The backup material 4 is located in the front surface of the receiving portion 32 between both ends in the width direction. The side surfaces of the backup material 4 in the width direction are located inside the side surfaces of the support portion 30 in the width direction.

The joiner 2 has a receiving surface 20 that receives the sealing material 7. The receiving surface 20 of the present embodiment is composed of a surface of the backup material 4 opposite to the joiner main body 3. A plurality of recesses 40 located at intervals in the vertical direction are formed on the receiving surface 20 of the backup material 4. As for the thickness (dimension in the front-rear direction) of the backup material 4, the portion corresponding to the recess 40 is smaller than the other portions.

As shown in FIG. 5, unevenness 62 is formed as a pattern on the surface (outdoor side surface) of each wall material 6. The unevenness 62 has a plurality of concave portions 63 and a plurality of convex portions 64. For example, each recess 63 is a recess groove extending in the left-right direction and formed over the entire length of the wall material 6 in the left-right direction. The plurality of recesses 63 are arranged in the vertical direction at equal pitches. The convex portion 64 is a portion of the wall material 6 adjacent to the concave portion 63, and projects toward the surface side of the wall material 6. The shape of the unevenness 62 formed on the wall material 6 is not limited. For example, the plurality of recesses 63 may be formed by intersecting one or more grooves extending in the left-right direction and one or more grooves extending in the vertical direction.

As shown in FIG. 1, the plurality of recesses 40 of the backup material 4 are arranged in the vertical direction at equal pitches. The distance between the adjacent recesses 40 of the backup material 4 is the same as the distance between the adjacent recesses 63 of the wall material 6. Each recess 40 of the backup material 4 is formed in a portion of the receiving surface 20 corresponding to the recess 63 (see FIG. 1) of the unevenness 62 formed on the surface of the wall material 6. Each recess 40 of the present embodiment is a concave groove having a rectangular cross section that opens from both side surfaces of the backup material 4 in the width direction toward the outside in the width direction of the backup material 4. The bottom surface of the recess 40 is a plane orthogonal to the front-rear direction.

In the receiving surface 20, the portion 41 other than the concave portion 40 is a portion corresponding to the convex portion 64 of the wall material 6. Hereinafter, the portion 41 is referred to as a convex portion corresponding portion 41. The convex portion corresponding portion 41 is a plane orthogonal to the front-rear direction. The bottom surface of the concave portion 40 is located behind the convex portion corresponding portion 41 (on the wall base 5 side). The joiner 2 of the present embodiment has two members, a joiner main body 3 and a backup material 4, but may be composed of one member.

Each of the plurality of wall materials 6 is a cured product of a molding material containing cement as a main component, and is a ceramic-based outer wall material. Each wall material 6 is formed in a plate shape along the surface of the wall base 5. Each wall material 6 of the present embodiment is a wall material for horizontal tension, and is formed in the shape of a rectangular plate extending in the left-right direction. The wall material 6 is not limited to the ceramic wall material. Further, each wall material 6 may be a wall material for vertical tension.

As shown in FIG. 5, each wall material 6 has a plurality of hollow portions 60. Each hollow portion 60 is a hole that extends linearly in the left-right direction and penetrates the wall material 6 in the left-right direction. In the wall material 6, the plurality of hollow portions 60 are arranged in the vertical direction. Both ends of each hollow portion 60 in the left-right direction are open from the end faces 67 on both the left and right sides of the wall material 6. A plurality of openings 61 of the hollow portion 60 are formed at each of the left and right end faces 67 of each wall material 6 at intervals in the vertical direction.

Each hollow portion 60 of the wall material 6 is formed only in a portion (a portion having the same vertical position as the convex portion 64) corresponding to the convex portion 64, which is a portion having a large thickness in the wall material 6. Therefore, the strength of the wall material 6 is higher than that of the wall material in which the hollow portion 60 is also formed in the portion of the wall material 6 corresponding to the recess 63.

As shown in FIG. 1, each wall material 6 is attached to the wall base 5 by a plurality of fasteners 8. Each fastener 8 is attached to the wall base 5 by being fixed to the wall base 5 by, for example, a fixing tool (not shown) such as a nail or a screw. Each fastener 8 is located between the wall material 6 and the wall base 5, and holds the wall material 6 at a position separated forward from the wall base 5. A ventilation layer 11 is formed between the plurality of wall materials 6 and the wall base 5 (specifically, the moisture permeable waterproof sheet 51).

The wall materials 6 adjacent to each other in the vertical direction include, for example, a convex solid portion 65 (see FIG. 5) formed on one wall material 6 and a concave solid portion 66 (see FIG. 5) formed on the other wall material 6. And are fitted and connected.

As shown in FIGS. 3 and 4, the plurality of wall materials 6 are attached to the wall base 5 so as to sandwich the support portion 30 of the joiner 2 and the backup material 4 between the wall materials 6 adjacent to each other in the left-right direction. A joint 10 that opens forward is formed between the wall materials 6 that are adjacent to each other in the left-right direction. Each of the wall materials 6 adjacent to each other in the left-right direction is restricted from moving to the joint 10 side when the end face 67 facing the joint 10 hits the support portion 30. The support portion 30 of the joiner 2 has a function of keeping the width of the joint 10 at a predetermined dimension.

A gap 42 is formed between the backup material 4 and the end faces 67 of the wall material 6 located on both sides of the backup material 4. The gap 42 leads to the opening 61 of each hollow portion 60 of the corresponding wall material 6 over the entire length of the backup material 4 in the longitudinal direction.

The sealing material 7 is filled in front of the backup material 4 at the joint 10. The sealing material 7 is a wet type sealing material, and is formed of, for example, modified silicone or the like. The sealing material 7 fills the joint 10 and prevents rainwater from infiltrating from the joint 10 to the wall base 5 side.

The sealing material 7 is in contact with the receiving surface 20 of the joiner 2. The sealing material 7 is supported from behind by the backup material 4 of the joiner 2.

The construction of the sealing material 7 is performed, for example, by filling the joint 10 with the uncured sealing material 7 from the front with the curing tape attached to the surface of the wall material 6. The sealing material 7 filled in the joint 10 in this way is finished with a spatula or the like so that the surface thereof is substantially flush with the surface of the wall material 6 having the unevenness 62.

In the sealing material 7, the surface of the portion of the wall material 6 corresponding to the convex portion 64 is substantially flush with the surface of the convex portion 64, and the surface of the portion of the wall material 6 corresponding to the concave portion 63 is the concave portion 63. It is formed at the joint 10 so as to be substantially flush with the surface of the lumber. Therefore, on the surface of the sealing material 7, a recess 70 continuous with the recess 63 of the wall material 6 is formed in the portion of the wall material 6 corresponding to the recess 63, as shown in FIG.

As shown in FIG. 6, in each wall material 6, a part of the opening 61 of the hollow portion 60 formed in the end surface 67 of the wall material 6 is arranged so as to face the backup material 4 of the corresponding joiner 2. NS. In this case, as shown in FIG. 3, a part of the opening 61 of each hollow portion 60 of the wall material 6 faces the rear portion of the convex portion corresponding portion 41 of the backup material 4 and faces the opening 61 of the sealing material 7. The area to be used becomes smaller. Therefore, when the air in the hollow portion 60 expands due to the wall material 6 being heated by an increase in temperature or sunlight, the expanded air makes it difficult for the sealing material 7 to be pressed. Therefore, it is possible to suppress the swelling of the sealing material 7 that occurs when the sealing material 7 that has not been completely cured immediately after construction is pressed by the air discharged from the hollow portion 60.

Further, in the present embodiment, as shown in FIG. 3, a gap 42 is formed between the end surface 67 of the wall material 6 and the rear portion of the convex portion corresponding portion 41 in the backup material 4, and each hollow portion 60 has a gap. It leads to 42. Therefore, the air in the hollow portion 60 is easily discharged into the gap 42, and the sealing material 7 is less likely to swell.

Further, since the backup material 4 of the present embodiment is softer than the sealing material 7 in the uncured state at the time of casting, the backup material 4 is likely to be pressed by the air expanded in the hollow portion 60. Therefore, the air in the hollow portion 60 is more likely to be discharged into the gap 42. The backup material 4 may be harder than the sealing material 7 at the time of casting.

In the present embodiment, a part of the opening 61 of the hollow portion 60 faces the sealing material 7, but the entire opening 61 may face the backup material 4. Further, a gap 42 may not be formed between the opening 61 of each hollow portion 60 of the wall material 6 and the rear portion of the convex portion corresponding portion 41 of the backup material 4.

As shown in FIG. 6, the recess 40 of the backup material 4 is arranged at the same position in the vertical direction as the recess 63 of the wall material 6 and at a position corresponding to the recess 63. Further, the convex portion corresponding portion 41 of the backup material 4 is arranged at the same position as the convex portion 64 of the wall material 6 in the vertical direction and at a position corresponding to the convex portion 64. Therefore, in the sealing material 7, the thickness of the portion of the wall material 6 corresponding to the concave portion 63 can be increased to the same extent as the thickness of the portion corresponding to the convex portion 64.

For example, as shown in FIG. 7, the portion of the receiving surface 20 of the backup material 4 corresponding to the concave portion 63 of the wall material 6 is located forward away from the support portion 30 by the same distance as the convex portion corresponding portion 41. Suppose. In this case, when the surface of the sealing material 7 is finished so as to be substantially flush with the surface of the wall material 6 having the unevenness 62, the thickness of the portion of the sealing material 7 corresponding to the recess 63 of the wall material 6 becomes small. There is a concern that the waterproof property of the sealing member 7 in this portion may be reduced. However, in the present embodiment, as shown in FIG. 6, the portion of the receiving surface 20 of the backup material 4 corresponding to the concave portion 63 of the wall material 6 (the bottom surface of the concave portion 40) corresponds to the convex portion 64 of the wall material 6. It is located behind the portion (convex corresponding portion 41) (on the wall base 5 side). Therefore, a sufficient amount of the sealing material 7 can be filled in the region corresponding to the recess 63 of the wall material 6 (the front region of the recess 40 of the backup material 4) in the joint 10. Therefore, even when the surface of the sealing material 7 is finished so as to be substantially flush with the surface of the wall material 6 having the unevenness 62, the thickness of the portion of the sealing material 7 corresponding to the recess 63 of the wall material 6 is increased. It is possible to sufficiently secure the waterproofness of the joint 10 by the sealing material 7.

The design of the joiner 2 and the wall structure 1 of the above embodiment can be changed as appropriate. For example, the shape, size, position, number, material, and the like of each of the joiner 2, the wall base 5, the wall material 6, the fastener 8, and the sealing material 7 can be changed as appropriate.

(2) Aspect As is clear from the embodiment described above, the joiner 2 of the first aspect is a joiner arranged at a joint 10 between adjacent wall materials 6 and has the following configuration. .. The joiner 2 has a receiving surface 20 that receives the sealing material 7. The portion of the receiving surface 20 corresponding to the concave portion 63 of the unevenness 62 formed on the surface of the wall material 6 is located closer to the wall base 5 than the portion corresponding to the convex portion 64 of the unevenness 62.

According to this aspect, in the joiner 2, the portion corresponding to the convex portion 64 of the wall material 6 can be made to face at least a part of the opening 61 of the hollow portion 60 formed in the portion corresponding to the convex portion 64. It is possible to prevent the sealing material 7 which has not been completely cured immediately after the construction from being swelled on the side opposite to the wall base 5 due to the air discharged from the hollow portion 60. Further, since the portion of the receiving surface 20 corresponding to the concave portion 63 of the wall material 6 is located closer to the wall base 5 than the portion corresponding to the convex portion 64 of the wall material 6, the concave portion 63 of the wall material 6 is located at the joint 10. A sufficient amount of the sealing material 7 can be filled in the region corresponding to the above. Therefore, even when the surface of the sealing material 7 is finished so as to be substantially flush with the surface of the wall material 6 having the unevenness 62, the thickness of the portion of the sealing material 7 corresponding to the recess 63 of the wall material 6 is increased. As a result, the waterproofness of the joint 10 by the sealing material 7 can be sufficiently ensured.

The joiner 2 of the second aspect can be realized in combination with the first aspect. The joiner 2 of the second aspect has the following configuration. The joiner 2 has a joiner main body 3 and a backup material 4. The backup material 4 is attached to the surface of the joiner body 3 opposite to the wall base 5, and backs up the sealing material 7. The receiving surface 20 is a surface of the backup material 4 opposite to the joiner main body 3.

According to this aspect, the joiner 2 having the receiving surface 20 can be easily manufactured by attaching the backup material 4 on which the receiving surface 20 is formed to the joiner main body 3.

The joiner 2 of the third aspect can be realized in combination with the second aspect. The backup material 4 of the third aspect is softer than the sealing material 7 at the time of casting.

According to this aspect, the air expanded in the hollow portion 60 of the wall material 6 easily presses the backup material 4. Therefore, the swelling of the sealing material 7 can be further suppressed.

The joiner 2 of the fourth aspect can be realized in combination with the second or third aspect. The backup material 4 of the fourth aspect is narrower than the surface of the joiner body 3 opposite to the wall base 5.

According to this aspect, a gap 42 can be formed between the backup material 4 and the end surface 67 of the wall material 6. Therefore, the air in the hollow portion 60 of the wall material 6 can be discharged to the gap 42, and the sealing material 7 is less likely to swell.

The wall structure 1 of the fifth aspect is a wall structure using the joiner 2 of any one of the first to fourth aspects, and has the configuration shown below. The wall material 6 has a hollow portion 60 that opens toward the joint 10. The portion of the joiner 2 corresponding to the convex portion 64 faces the opening 61 of the hollow portion 60.

According to this aspect, it is possible to prevent the sealing material 7 from causing "bulging" that swells on the side opposite to the wall base 5 due to the air discharged from the hollow portion 60. Further, even when the surface of the sealing material 7 is finished so as to be substantially flush with the surface of the wall material 6 having the unevenness 62, the thickness of the portion of the sealing material 7 corresponding to the recess 63 of the wall material 6 is increased. As a result, the waterproofness of the joint 10 by the sealing material 7 can be sufficiently ensured.

1 Wall structure 10 Joints 2 Joiner 20 Receiving surface 3 Joiner body 4 Backup material 5 Wall base 6 Wall material 60 Hollow part 61 Opening 62 Concavo-convex 63 Concave 64 Convex 7 Sealing material

Claims (5)

A joiner placed at the joint between adjacent wall materials,
Has a receiving surface to receive the sealing material
In the receiving surface, the portion corresponding to the concave portion of the unevenness formed on the surface of the wall material is located closer to the base of the wall than the portion corresponding to the convex portion of the unevenness.
Joiner. The joiner according to claim 1,
Joiner body and
It has a backup material that is attached to the surface of the joiner body opposite to the wall base and backs up the sealing material.
The receiving surface is a surface of the backup material opposite to the joiner body.
Joiner. The joiner according to claim 2,
The backup material is softer than the sealing material at the time of casting.
Joiner. The joiner of claim 2 or 3,
The backup material is narrower than the surface of the joiner body opposite to the wall base.
Joiner. A wall structure using the joiner according to any one of claims 1 to 4.
The wall material is
It has a hollow portion that opens toward the joint and has a hollow portion.
The portion of the joiner corresponding to the convex portion faces the opening of the hollow portion.
Wall structure.

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