JP7633022B2 - Joiner and exterior wall construction - Google Patents

Description

The present invention relates to a jointer and an installation structure for exterior wall materials. More specifically, the present invention relates to a jointer located in a joint formed between laterally adjacent exterior wall panels and an installation structure for exterior wall materials that includes this jointer.

Conventionally, joints are formed between horizontally adjacent exterior wall materials, and waterproofing sealants are provided in the joints. The interval (joint width) between horizontally adjacent exterior wall materials is regulated by a joiner. Figures 8A and 8B show a hat-shaped one as an example of a joiner 110. The hat-shaped joiner 110 is formed long so as to extend vertically. The hat-shaped joiner 110 also has a protrusion 111 and a base 113. The protrusion 111 is formed to have a U-shaped cross section, but the width (horizontal dimension) of the protrusion 111 is larger at the outdoor end than at the indoor end (end on the base 113 side). The base 113 is formed to protrude outward from each of both ends of the protrusion 111. As shown in Figure 8C, the hat-shaped joiner 110 is arranged on the outdoor surface of the wall base 30 including the building's framework (columns, etc.). A pair of horizontally adjacent exterior wall materials 200 are attached to the exterior side of the wall base 30 with fasteners 35, and are arranged with the protrusions 111 positioned between the opposing side end faces 201. A sealant 40 is then provided in the space between the joints on the exterior side of the protrusions 111.

9A and 9B show a schematic diagram of the construction structure of the exterior wall material 200. As described above, the convex portion 111 of the hat-shaped joiner 110 is positioned between the opposing side end faces 201 of a pair of horizontally adjacent exterior wall materials 200, and at this time, the side end face 201 of each exterior wall material 200 is in contact with the corner portion 116 of the outdoor end of the convex portion 111. The sealing 140 is adhered to the side end face 201 of the exterior wall material 200, but is not adhered to the outdoor surface of the convex portion 111. If the sealing 140 is not adhered to the outdoor surface of the convex portion 111 in this way, when the exterior wall material 200 sways horizontally due to an earthquake, the movement of the sealing 140 is less likely to be restricted by the hat-shaped joiner 110, and the sealing 140 is less likely to crack.

JP 2015-163747 A

However, when an earthquake causes the building to shake laterally, the exterior wall material 200 tries to displace laterally, but since the joiner 110 is fixed to the wall base 30, it is difficult to move laterally, and therefore the lateral displacement of the exterior wall material 200 is restricted by the joiner 110. In this case, as shown in FIG. 9B, the side end face 201 of the exterior wall material 200 hits the corner 116 at the outdoor end of the protrusion 111, and a load (weight) is applied to the exterior wall material 200. In particular, as shown in FIG. 9C, when an earthquake occurs, the upper floor (second floor) of the building 300 has a larger width of lateral sway than the lower floor (first floor), and therefore the exterior wall material 200 on the upper floor is displaced laterally more than the exterior wall material 200 on the lower floor, and there is a problem that the exterior wall material 200 on the lower floor is more likely to be subjected to a load.

The present invention has been made in consideration of the above-mentioned reasons, and aims to provide a jointer and an exterior wall construction structure that can reduce the load on exterior wall materials during earthquakes.

A joiner according to one aspect of the present invention includes a protruding portion disposed between adjacent exterior wall materials in a horizontal direction, and a deformation portion capable of deforming in a horizontal direction at an interlayer deformation angle of 1/200 or more. The deformation portion is formed in a bellows shape capable of expanding and contracting in the horizontal direction.

The construction structure for exterior wall materials according to one aspect of the present invention comprises a joiner and a plurality of exterior wall materials. The protruding portion of the joiner is disposed between the exterior wall materials adjacent to each other in the horizontal direction.

The present invention has the advantage that when an earthquake causes the exterior wall material to be displaced laterally and hit a protrusion, the deformation portion deforms, reducing the force acting on the exterior wall material.

Fig. 1A is a partial perspective view showing a first embodiment of a joiner according to the present invention. Fig. 1B and Fig. 1C are cross-sectional views each showing a schematic diagram of an embodiment of a construction structure for an exterior wall material according to the present invention. 2A and 2B are cross-sectional views that typically show a second embodiment of a joiner according to the present invention. 3A and 3B are cross-sectional views that typically show a third embodiment of a joiner according to the present invention. 4A and 4B are cross-sectional views that typically show a fourth embodiment of a joiner according to the present invention. 5A and 5B are cross-sectional views that typically show a fifth embodiment of a joiner according to the present invention. 6A and 6B are cross-sectional views that typically show a sixth embodiment of a joiner according to the present invention. 7A to 7D show a sixth embodiment of a joiner according to the present invention, where FIG. 7A is a plan view, FIG. 7B is a front view, FIG. 7C is a left side view, and FIG. 7D is a right side view. Fig. 8A is a partial perspective view showing a conventional joiner, Fig. 8B is a cross-sectional view showing the conventional joiner, and Fig. 8C is a cross-sectional view showing a construction structure of a conventional exterior wall material. 9A and 9B are cross-sectional views showing a typical construction of a conventional exterior wall material, and Fig. 9C is a schematic diagram showing the inclination of a building when an earthquake occurs.

(Embodiment 1)
FIG. 1A shows a joiner 10 according to this embodiment. FIG. 1B and FIG. 1C are schematic diagrams showing the construction structure of the exterior wall material 20 according to this embodiment. The joiner 10 is provided with a convex portion 11 arranged between the exterior wall materials 20 adjacent in the horizontal direction, and a deformation portion 12 capable of deforming in the horizontal direction with an interlayer deformation angle of 1/200 or more. In this specification, the horizontal direction means the horizontal direction, but it includes not only the horizontal direction in the strict sense, but also a substantially horizontal direction to the extent that does not cause practical problems in the architectural field. In this specification, the vertical direction means the vertical direction, but it includes not only the vertical direction in the strict sense, but also a substantially vertical direction to the extent that does not cause practical problems in the architectural field. In this specification, the front means the direction from the wall base 30 toward the outdoors. In this specification, the rear means the direction from the wall base 30 toward the indoors.

The joiner 10 is a member for regulating the spacing between adjacent exterior wall materials 20 in the horizontal direction and positioning the exterior wall materials 20 in a predetermined position. In other words, the joiner 10 has the function of ensuring a joint of a predetermined width between adjacent exterior wall materials 20 when constructing multiple exterior wall materials 20. The joiner 10 is formed to extend in the vertical direction and has the same cross-sectional shape over its entire length. The joiner 10 is made of plastic or metal, and is formed by bending a corrosion-resistant metal plate such as a hot-dip zinc-aluminum-magnesium alloy-plated steel plate, for example.

The joiner 10 has a convex portion 11 and a deformation portion 12. The convex portion 11 is arranged between the exterior wall materials 20 adjacent in the horizontal direction. The exterior wall materials 20 adjacent in the horizontal direction are arranged with a joint of a predetermined width by the convex portion 11. The deformation portion 12 is formed so that it can be deformed with an interlayer deformation angle of 1/200 or more. The interlayer deformation angle is defined in the Building Standards Act, and the horizontal interlayer displacement caused by earthquake force on each floor is calculated by a predetermined method, and the interlayer deformation angle is regulated as the ratio of the interlayer displacement to the height of each floor. The interlayer deformation angle is an index of the ease of deformation of a building due to an earthquake, and the smaller the interlayer deformation angle, the less likely it is to deform. Therefore, when a relatively large earthquake occurs and the deformation of the building is large (when the interlayer deformation angle is 1/200 or more), the deformation portion 12 is formed to deform. The joiner 10 also has a pair of base portions 13. The base portions 13 are parts that fix the joiner 10 to the wall base 30. Each base portion 13 is formed as a plate with its thickness in the front-to-rear direction and aligned horizontally. Therefore, the joiner 10 has a generally hat-shaped cross section.

The protrusion 11 has a pair of legs 14. The legs 14 form the side surfaces of the protrusion 11. Each leg 14 protrudes diagonally forward from the opposing ends of the pair of bases 13. The pair of legs 14 face each other laterally, but the dimension between the rear ends of the legs 14 (joints with the bases 13) is smaller than the dimension between the front ends of the legs 14. That is, the distance between the pair of legs 14 is wider as viewed forward from the base 13. In other words, the pair of legs 14 are inclined in a direction away from each other from the base 13 toward the front. A space 17 is formed between one base 13 and one leg 14 joined thereto. A space 17 is also formed between the other base 13 and the other leg 14 joined thereto. That is, the space that forms a minor angle between the adjacent base portions 13 and leg portions 14 is formed as the space portion 17, and the space portion 17 is formed on both lateral sides of the joiner 10.

The protrusion 11 has a top 15. The top 15 extends horizontally from the front ends of the pair of legs 14, forming the front surface of the protrusion 11. One horizontal end of the top 15 is joined to the front end of one leg 14, and the other horizontal end of the top 15 is joined to the front end of the other leg 14. The corner (outer corner) formed at the joint between the front end of one leg 14 and one horizontal side end of the top 15 is formed as a contact portion 16 with which the side end surface 21 of the exterior wall material 20 can come into contact. The corner of the joint between the front end of the other leg 14 and the other horizontal side end of the top 15 is also formed as a contact portion 16 with which the side end surface 21 of the exterior wall material 20 can come into contact. In other words, the joiner 10 has contact portions 16 formed on both front end portions.

In this embodiment, the deformation portion 12 is formed on the top 15. In this case, the deformation portion 12 is formed in approximately the center of the top 15 in the horizontal direction. In this embodiment, the deformation portion 12 is formed in a bellows shape that can expand and contract in the horizontal direction. That is, the deformation portion 12 is composed of a plurality of movable plates 121 arranged in the horizontal direction, and the movable plates 121 adjacent in the horizontal direction are joined at either the front end or the rear end. The joined ends of the movable plates 121 are formed so that the front and rear are alternately switched along the horizontal direction, and as a result, the deformation portion 12 has a W-shaped cross section. Therefore, the deformation portion 12 has an accordion-shaped cross section, and is formed so that the distance between adjacent movable plates 121 in the horizontal direction is reduced and expanded.

The construction structure of the exterior wall material 20 according to this embodiment is formed with the above-mentioned joiner 10 and multiple exterior wall materials 20. The exterior wall material 20 is a hardened product of a molding material containing cement, and so-called ceramic siding is used. The exterior wall material 20 is formed in a rectangular shape when viewed from the front. Therefore, the side end surface 21 of the exterior wall material 20 is formed into a flat surface that is approximately perpendicular to the horizontal direction.

The construction structure of the exterior wall material 20 according to this embodiment is formed as follows. First, the joiner 10 is attached to the front side (outdoor side) of the wall base 30. The wall base 30 includes the building's framework such as pillars, and may further include furring strips, gypsum board, plywood, etc. The base part 13 of the joiner 10 is placed along the front side (outdoor side) of the wall base 30, and the base part 13 is fixed to the wall base 30 with a fastener such as a nail or screw that penetrates in the thickness direction (front-to-back direction). In this way, the joiner 10 is placed so that it extends along the vertical direction. Almost no lateral force is applied to the deformation part 12 of the joiner 10 attached in this way. In other words, the deformation part 12 is in a state where it is not expanding or contracting in the lateral direction.

Next, a pair of exterior wall materials 20 are placed so as to sandwich the joiner 10 horizontally. Here, the exterior wall materials 20 are installed on the front side (outdoor side) of the wall base 30 by hooking the upper and lower ends onto fasteners provided on the wall base 30. A pair of horizontally adjacent exterior wall materials 20 are also placed so that their side end faces 21 face each other, and the space between the opposing side end faces 21 is formed as a joint. Therefore, the joiner 10 is placed in the space (joint) between the opposing side end faces 21. The exterior wall material 20 can be placed with the side end face 21 in contact with the contact portion 16 of the joiner 10. As a result, the interval between a pair of horizontally adjacent exterior wall materials 20 is restricted to the width of the protruding portion 11, making it easier to install multiple exterior wall materials 20 at a predetermined interval in the horizontal direction.

After this, a sealant 40 is formed in the space in the joint (the space between the opposing side end faces 21) in front of the joiner 10. In this case, the sealant 40 is formed by filling the space with a wet sealant and allowing it to harden. The sealant 40 is adhered to the side end faces 21 but not to the joiner 10. In other words, the rear surface of the sealant 40 and the front surface of the top 15 are positioned opposite each other and are not adhered to each other.

In the construction structure of the exterior wall material 20 according to this embodiment, in a normal state where no earthquake has occurred, as shown in FIG. 1B, the deformed portion 12 of the joiner 10 remains almost undeformed in the lateral direction. However, the exterior wall material 20 expands and contracts somewhat in the lateral direction when exposed to sunlight, etc., but the deformed portion 12 expands and contracts in accordance with the expansion and contraction of the exterior wall material 20 due to temperature changes. When an earthquake occurs and the exterior wall material 20 is displaced in the lateral direction (the direction of the arrow in FIG. 1C), the contact portion 16 of the convex portion 11 is pushed in the lateral direction by the side end surface 21 of the exterior wall material 20. At this time, since the base portion 13 of the joiner 10 is fixed to the wall base 30, the joiner 10 does not move as a whole, and the convex portion 11 is deformed. That is, the convex portion 11 is deformed so that the angle of the leg portion 14 relative to the base portion 13 is widened, that is, the space portion 17 is deformed so that it is widened in the front-to-rear direction. The convex portion 11 is also deformed so that the width dimension of the top portion 15 is reduced. At this time, the deformation portion 12 at the top 15 is deformed as if folded, reducing the width dimension.

Even if the exterior wall material 20 is displaced in the horizontal direction, the amount of displacement is absorbed by the contraction of the width of the protruding portion 11. Therefore, even if the side end face 21 of the exterior wall material 20 and the contact portion 16 of the joiner 10 come into contact, the side end face 21 of the exterior wall material 20 is less likely to be subjected to load. Therefore, it is possible to make it difficult for force to be applied to the side end face 21 of the exterior wall material 20. In addition, since the deformation portion 12 of this embodiment is expandable, the deformation of the protruding portion 11 is easily restored and can easily follow even if the exterior wall material 20 is displaced back and forth in the lateral direction.

(Embodiment 2)
The joiner 10 according to this embodiment differs from the joiner 10 according to the first embodiment in the configuration of the deformation portion 12 .

In the following, configurations similar to those in embodiment 1 will be denoted by the same reference numerals and descriptions will be omitted as appropriate.

The configuration described in embodiment 2 can be applied in appropriate combination with the configuration described in embodiment 1.

2A and 2B, the joiner 10 according to this embodiment is formed by joining two members 101. Each member 101 has a shape similar to a conventional hat-shaped joiner separated in half horizontally at approximately the center of the top 15. That is, each member 101 has a base 13, a leg 14, and a top piece 122. The top piece 122 is formed by protruding horizontally (the opposite direction to the base 13) from the front end of the leg 14. The top pieces 122 of a pair of members 101 are bonded together at an adhesive portion 123 to form the top 15. The pair of top pieces 122 are arranged so that their tips overlap in the front-rear direction, and an adhesive portion 123 is provided between the tips of the pair of overlapping top pieces 122, and the pair of top pieces 122 are joined together.

The joiner 10 of this embodiment is installed in the joint between the side end faces 21 of the exterior wall materials 20 adjacent in the horizontal direction, as in the first embodiment, but in a normal state where no earthquake has occurred, the pair of top pieces 122 remain attached at the adhesive part 123. On the other hand, when an earthquake occurs from the installed state, the contact part 16 is pushed laterally at the side end face 21 of the exterior wall material 20. As a result, a force is applied to the adhesive part 123, which destroys the adhesive part 123, and the joint of the pair of top pieces 122 is released as shown in FIG. 2B. In other words, the deformation part 12 that can deform at an interlayer deformation angle of 1/200 or more is composed of a pair of top pieces 122 and adhesive part 123. As a result, even if the side end face 21 of the exterior wall material 20 and the contact part 16 of the joiner 10 come into contact, the horizontal dimension of the top part 15 changes, making it difficult for a load to be applied to the side end face 21 of the exterior wall material 20. Therefore, force is less likely to be applied to the side end surface 21 of the exterior wall material 20.

In addition, of the pair of top pieces 122, the top piece 122 located at the front has a smaller lateral displacement dimension than the top piece 122 located at the rear. Therefore, even if the protrusion 11 deforms in the lateral direction, the sealing located further forward of the top piece 122 located at the front is less likely to be burdened.

(Embodiment 3)
The joiner 10 according to this embodiment differs from the joiner 10 according to the second embodiment in the configuration of the base portion 13 .

In the following, configurations similar to those in embodiments 1 and 2 will be denoted by the same reference numerals and descriptions will be omitted as appropriate.

The configuration described in embodiment 3 can be applied in appropriate combination with the configurations described in embodiments 1 and 2.

As shown in Figures 3A and 3B, the joiner 10 according to this embodiment is formed by joining two members 101, as in the second embodiment, but a fixing hole 18 is formed in the base portion 13. This fixing hole 18 is a hole for inserting a fastener 31 that is fixed to the wall base 30, and penetrates the base portion 13 in the thickness direction (front-to-back direction). The fixing hole 18 is also formed as a long hole that extends laterally. Therefore, the joiner 10 and the members 101 are formed so that they can be displaced laterally within the range of the fixing hole 18, even when the base portion 13 is fixed by the fastener 31.

In the joiner 10 according to this embodiment, as in embodiment 2, the pair of top pieces 122 are released from the joint, reducing the force applied to the side end surface 21 of the exterior wall material 20, but the range of displacement of the base portion 13 is greater than in embodiment 2 by the lateral dimension of the fixing hole 18. Therefore, the lateral range of movement of the joiner 10 and the member 101 is increased, and the force applied to the side end surface 21 of the exterior wall material 20 is reduced.

Note that while Figures 3A and 3B show an example in which the fixing holes 18 are applied to the second embodiment, the fixing holes 18 may also be applied to the first embodiment.

(Embodiment 4)
The joiner 10 according to this embodiment differs from the joiners 10 according to the first to third embodiments in the configuration of the deformation portion 12.

In the following, configurations similar to those in embodiments 1 to 3 will be denoted by the same reference numerals and descriptions will be omitted as appropriate.

The configuration described in embodiment 4 can be applied in appropriate combination with the configurations described in embodiments 1 to 3.

As shown in Figures 4A and 4B, the joiner 10 according to this embodiment is formed so that the apex 15 is curved and convex toward the rear in a conventional hat-type joiner. In other words, the entire apex 15 is formed as the deformation portion 12.

In this embodiment, as in the first embodiment, the joint is placed in the joint between the side end faces 21 of the horizontally adjacent exterior wall materials 20 and installed. In a normal state where no earthquake has occurred, the top 15 maintains a gently curved state so as to be convex toward the rear, as shown in FIG. 4A. On the other hand, when an earthquake occurs in the installed state, the contact portion 16 is pushed laterally at the side end face 21 of the exterior wall material 20. As a result, a force is applied to the top 15, and as shown in FIG. 4B, the entire top 15 is curved steeply so as to protrude toward the rear. As a result, even if the side end face 21 of the exterior wall material 20 and the contact portion 16 of the joiner 10 come into contact with each other, a load is less likely to be applied to the side end face 21 of the exterior wall material 20. Therefore, force is less likely to be applied to the side end face 21 of the exterior wall material 20.

(Embodiment 5)
The joiner 10 according to this embodiment differs from the joiners 10 according to the first to fourth embodiments in the configuration of the deformation portion 12.

In the following, configurations similar to those in embodiments 1 to 4 will be denoted by the same reference numerals and descriptions will be omitted as appropriate.

The configuration described in embodiment 5 can be applied in appropriate combination with the configurations described in embodiments 1 to 3.

As shown in Figures 5A and 5B, the joiner 10 according to this embodiment is formed so that the apex 15 is curved and convex toward the front in a conventional hat-shaped joiner. In other words, the entire apex 15 is formed as an arc-shaped deformation portion 12.

In this embodiment, as in the first embodiment, the joint is placed in the joint between the side end faces 21 of the exterior wall material 20 adjacent in the horizontal direction, but in a normal state where no earthquake has occurred, the top 15 maintains a gently curved state so as to be convex toward the front, as shown in FIG. 5A. On the other hand, when an earthquake occurs in the installed state, the contact portion 16 is pushed laterally by the side end face 21 of the exterior wall material 20. As a result, a force is applied to the top 15, and as shown in FIG. 5B, the entire top 15 becomes sharply curved so as to protrude toward the front. As a result, even if the side end face 21 of the exterior wall material 20 and the contact portion 16 of the joiner 10 come into contact with each other, a load is less likely to be applied to the side end face 21 of the exterior wall material 20. Therefore, force is less likely to be applied to the side end face 21 of the exterior wall material 20.

(Embodiment 6)
The joiner 10 according to this embodiment differs from the joiners 10 according to the first to fifth embodiments in the configuration of the deformation portion 12.

In the following, configurations similar to those in embodiments 1 to 5 will be denoted by the same reference numerals and descriptions will be omitted as appropriate.

The configuration described in embodiment 6 can be applied in appropriate combination with the configurations described in embodiments 1 to 5.

As shown in Figures 6A and 6B, the joiner 10 according to this embodiment is a hat-shaped joiner in which a deformation portion 12 is formed at the top 15. This deformation portion 12 is provided at approximately the center of the top 15 in the horizontal direction. In addition, a deformation portion 12 is also formed on a pair of legs 14. This deformation portion 12 is provided at approximately the center of each leg 14 in the front-to-rear direction (indoor-outdoor direction). Each deformation portion 12 is formed of a weak portion. The weak portion is a portion that is weaker in strength than the other portions of the joiner 10 and is easily deformed. The weak portion is formed in the form of, for example, a hole, a thin plate, a groove, a bent shape, or the like.

As shown in Figures 7A to 7D, the joiner 10 according to this embodiment further includes a notch 19 at least in a corner (contact portion 16) between the leg 14 and the top 15. That is, the protruding portion 11 of the joiner 10 is provided with a plurality of notches 19. The plurality of notches 19 are formed in both of the pair of legs 14. The plurality of notches 19 are formed as rectangular holes and have the same shape and size, although the shape and size do not have to be the same. The plurality of notches 19 are lined up at a predetermined interval along the extension direction of the joiner 10.

Each notch 19 is connected to the space 110 inside the protrusion 11. The notch 19 penetrates the top 15 and the leg 14. The notch 19 spans both the top 15 and the leg 14. Of the multiple notches 19, the notch 19 formed in one leg 14 and the notch 19 formed in the other leg 14 are formed alternately in the extension direction of the joiner 10 so as not to face each other.

In this embodiment, as in the first embodiment, the joint is placed in the joint between the side end faces 21 of the exterior wall materials 20 adjacent in the horizontal direction and constructed, but in a normal state where no earthquake occurs, as shown in FIG. 6A, the top 15 and the leg 14 maintain a state in which they are not bent at the deformed portion 12. On the other hand, when an earthquake occurs from the constructed state, the contact portion 16 is pushed laterally at the side end face 21 of the exterior wall material 20. As a result, a force is applied to the top 15 and the leg 14, and the deformed portion 12 is deformed. As shown in FIG. 6B, at the top 15, the deformed portion 12 is bent so as to protrude backward, and the top 15 becomes "L-shaped". At the leg 14, the deformed portion 12 is bent so as to protrude toward the space 110 inside the convex portion 11, and each leg 14 becomes "L-shaped". As a result, even if the side end face 21 of the exterior wall material 20 and the contact portion 16 of the joiner 10 come into contact, a load is less likely to be applied to the side end face 21 of the exterior wall material 20. Therefore, force is less likely to be applied to the side end surface 21 of the exterior wall material 20. In addition, in this embodiment, the notch 19 is provided at the corner between the leg 14 and the top 15, so the strength of the top 15 and the leg 14 is reduced and they are more likely to deform than if there was no notch 19. As a result, even if the side end surface 21 of the exterior wall material 20 comes into contact with the contact portion 16 of the joiner 10, force is less likely to be applied to the side end surface 21 of the exterior wall material 20.

(summary)
As described above, the joiner 10 of the first embodiment has a convex portion 11 arranged between laterally adjacent exterior wall materials 20, and a deformation portion 12 that is capable of deforming laterally with an interlayer deformation angle of 1/200 or more.

According to the first aspect, when an earthquake causes the exterior wall material 20 to be displaced laterally and hit the protrusion 11, the deformation portion 12 deforms, reducing the force acting on the exterior wall material 20, which has the advantage of reducing the load on the exterior wall material 20.

The second aspect is the joiner 10 in the first aspect. The joiner 10 further includes a base portion 13 that is fixed to the wall base 30. The protruding portion 11 has a leg portion 14 that protrudes forward from the base portion 13, and an apex portion 15 that extends laterally from the front end portion of the leg portion 14. The corner portion between the leg portion 14 and the apex portion 15 is formed as a contact portion 16 that can come into contact with the side end surface 21 of the exterior wall material 20. A space portion 17 is formed between the base portion 13 and the leg portion 14. The deformation portion 12 is formed in the apex portion 15.

According to the second aspect, the contact portion 16 and the space portion 17 can regulate the distance between adjacent exterior wall materials 20 in the horizontal direction, making it easier to arrange the exterior wall materials 20, and the deformation portion 12 has the advantage of reducing the load associated with the displacement of the exterior wall materials 20.

The third embodiment is the joiner 10 of the second embodiment. The base portion 13 has a fixing hole 18 for inserting a fastener 31 that is fixed to the wall base 30. The fixing hole 18 extends along the horizontal direction.

The third aspect has the advantage that the joiner 10 can move more easily in the lateral direction, further reducing the force applied to the exterior wall material 20 and reducing the load on the exterior wall material 20.

The fourth aspect is the joiner 10 of any one of the first to third aspects. The deformation portion 12 is formed in a bellows shape that can expand and contract in the lateral direction.

According to the fourth aspect, when the exterior wall material 20 is displaced laterally and hits the protrusion 11, the deformation portion 12 deforms, reducing the force applied to the exterior wall material 20, and the load on the exterior wall material 20 is reduced.

The fifth aspect is the joiner 10 in the first aspect. The joiner 10 further includes a base portion 13 that is fixed to the wall base 30. The protruding portion 11 has a leg portion 14 that protrudes forward from the base portion 13, and an apex portion 15 that extends laterally from the front end portion of the leg portion 14. The corner portion between the leg portion 14 and the apex portion 15 is formed as a contact portion 16 that can come into contact with the side end surface 21 of the exterior wall material 20. The deformation portion 12 is formed in the leg portion 14.

According to the fifth aspect, the contact portion 16 can regulate the spacing between adjacent exterior wall materials 20 in the horizontal direction, making it easier to arrange the exterior wall materials 20, and the deformation portion 12 has the advantage of reducing the load associated with the displacement of the exterior wall materials 20.

The sixth aspect is the joiner 10 of the fifth aspect. The joiner 10 further includes a notch 19 at least in a portion of the corner between the leg 14 and the top 15.

The sixth aspect has the advantage that the notch 19 makes it easier for the legs 14 and the top 15 to deform, and the deformation portion 12 reduces the load caused by the displacement of the exterior wall material 20.

The seventh aspect is the joiner 10 of the fifth or sixth aspect. The protrusion 11 has a pair of legs 14. The pair of legs 14 are inclined in directions away from each other from the base 13 forward.

According to the seventh aspect, the pair of legs 14 can regulate the spacing between adjacent exterior wall materials 20 in the horizontal direction, which has the advantage that the exterior wall materials 20 can be easily arranged.

The eighth aspect is the joiner 10 of any one of the fifth to seventh aspects. The leg portion 14 has a weak portion that becomes the deformation portion 12.

According to the eighth aspect, the deformation portion 12 makes it easier for the legs 14 and the top portion 15 to deform, which has the advantage of reducing the load caused by the displacement of the exterior wall material 20.

The construction structure of the exterior wall material 20 according to the ninth aspect includes the joiner 10 described in any one of the first to eighth aspects and a plurality of exterior wall materials 20. The protruding portion 11 of the joiner 10 is disposed between the exterior wall materials 20 adjacent to each other in the horizontal direction.

According to the ninth aspect, when an earthquake causes the exterior wall material 20 to be displaced laterally and hit the protrusion 11, the deformation portion 12 deforms, reducing the force acting on the exterior wall material 20, which has the advantage of reducing the load on the exterior wall material 20.

REFERENCE SIGNS LIST 10 joiner 11 protruding portion 12 deformation portion 13 base portion 14 leg portion 15 top portion 16 contact portion 17 space portion 18 fixing hole 19 cutout portion 20 exterior wall material 21 side end surface 30 wall base 31 fixing device

Claims (9)

A protrusion disposed between adjacent exterior wall materials in the horizontal direction;
and a deformation portion capable of deforming laterally at an inter-story deformation angle of 1/200 or more.
Joiner,
The deformation portion is formed in a bellows shape that is expandable and contractable in the lateral direction.
Joiner . A protrusion disposed between adjacent exterior wall materials in the horizontal direction;
and a deformation portion capable of deforming laterally at an inter-story deformation angle of 1/200 or more.
Joiner,
The joiner is formed by joining two members,
The member has a base, a leg and a top piece;
The top piece is formed to protrude from a front end of the leg in a direction opposite to the base portion,
The top pieces of the pair of members are bonded together by an adhesive portion,
The deformation portion is composed of a pair of the top pieces and the adhesive portion.
Joiner. A protrusion disposed between adjacent exterior wall materials in the horizontal direction;
and a deformation portion capable of deforming laterally at an inter-story deformation angle of 1/200 or more.
Joiner,
Further comprising a base portion to be fixed to a wall substrate;
The protrusion has a leg portion protruding forward from the base portion and an apex portion extending laterally from a front end of the leg portion,
The deformation portion is formed on the top portion that is formed so as to be bent so as to be convex toward the front.
Joiner. The base portion has a fixing hole for inserting a fixing device to be fixed to the wall base,
The fixing hole extends along the lateral direction.
The joiner of claim 3 . A protrusion disposed between adjacent exterior wall materials in the horizontal direction;
and a deformation portion capable of deforming laterally at an inter-story deformation angle of 1/200 or more.
Joiner,
Further comprising a base portion fixed to a wall base,
The protrusion has a leg portion protruding forward from the base portion and an apex portion extending laterally from a front end of the leg portion,
The corners between the leg and the top are formed as contact portions that can come into contact with the side end surfaces of the exterior wall material,
The deformation portion is formed on the leg portion.
Joiner . Further, a notch is provided at least in a corner between the leg and the top.
6. The joiner of claim 5. The protrusion includes a pair of legs,
The pair of legs are inclined in a direction away from each other from the base portion forward.
7. A joiner according to claim 5 or 6. The leg portion has a weakened portion that becomes the deformation portion.
A joiner according to any one of claims 5 to 7. A method for constructing a joint comprising the joiner according to any one of claims 1 to 8 and a plurality of exterior wall materials,
The protrusions of the joiner are disposed between the exterior wall materials adjacent to each other in the horizontal direction.
Construction structure of exterior wall materials.

Images