Installation structure of joint accessories and building exterior walls

Abstract

To provide an accessory for joint with high cut-off performance and displacement prevention and an installation structure of a building outer wall.SOLUTION: An accessory for joint 2 joins two outer wall panels 1 in a rectangular plate shape in which a back shiplap part 10 is formed at one long side among a right side and a left side and a vertical end surface without a step processing is formed at other long side, and in the accessory for joint a first accessory for joint 2 has a proximal part 20 extending in parallel with a back surface of the outer wall panel 1 and a projection part 21 projecting from the proximal part 20 toward the outer wall panel 1 side, and the projection part 21 has a cut-off surface part 22 extending in parallel with and in contact with the back surface of the outer wall panel 1 and including a seal material 24 between itself and the outer wall panel 1 and a protrusion part 23 protruding from the cut-off surface part 22 toward the outer wall panel 1 side, inserted into the back shiplap part 10 of one outer wall panel 1 and without the seal material between itself and two outer wall panels 1.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a joint fixture and building exterior wall installation structure. [Background technology]

[0002] Conventionally, a sealless method has been known as a method for joining ceramic siding exterior wall materials, which makes the joints less noticeable from the outside and improves the design. The sealless method involves applying a jointing process to the joint ends of two exterior wall materials to be joined, and using a joiner (a joining accessory) at the joint to provide a sealant on the inside of the exterior wall so that it is not exposed to the outside (for example, see Patent Document 1).

[0003] In the sealless construction method described in Patent Document 1, the joint components are required to have watertightness and to prevent the exterior wall material from slipping. Regarding watertightness, as described above, a sealant for watertightness is provided on the inside of the exterior wall to prevent rainwater and the like from entering the interior of the exterior wall material. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-105801 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, when a sealant is placed on the back of the exterior wall material to stop water, the elasticity of the sealant can cause the relative positions of the exterior wall material and the connecting fixture to shift. For example, when a strong force is applied to the building due to an earthquake or impact, the exterior wall material can compress the sealant, causing a shift, and the sealant's deformation can reduce the water-stopping ability. [Means for solving the problem]

[0006] The present disclosure provides a joining accessory for joining two rectangular exterior wall panels having a back joint portion formed on one of the vertical sides, either the right or left side, and a vertical end face without step processing formed on the other vertical side, the joining accessory having a base extending parallel to the back surface of the exterior wall panel and a convex portion protruding from the base toward the exterior wall panel, the convex portion extending parallel to the back surface of the exterior wall panel and having a water-stopping surface portion provided with a sealant that abuts against the back surface of the exterior wall panel, and a protrusion protruding from the water-stopping surface portion toward the exterior wall panel, being inserted into the back joint portion of one of the exterior wall panels, and having no sealant between the two exterior wall panels. [Brief description of the drawings]

[0007] [Figure 1] FIG. 2 is a horizontal cross-sectional view of the exterior wall panel 1 of the present invention. [Diagram 2] FIG. 2 is a horizontal cross-sectional view of the first connecting component 2 in the first embodiment. [Diagram 3] FIG. 1 is a diagram showing a schematic diagram of a first installation structure 100 for a building exterior wall in a first embodiment. [Figure 4] FIG. 2 is a perspective view showing an installed state of an exterior wall panel according to the first embodiment. [Diagram 5] FIG. 11 is a diagram showing a schematic diagram of a second installation structure 200 for a building exterior wall in a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] First Embodiment The first installation structure 100 for a building exterior wall, which is the first embodiment of the present invention, is a building exterior wall installation structure by a ceilingless construction method, which is composed of a square plate-shaped exterior wall panel 1 with a back joint 10 formed on the right vertical side and a vertical end face without step processing formed on the left vertical side, and a first connecting fixture 2 that joins the two exterior wall panels 1. The two exterior wall panels 1 are joined by the first connecting fixture 2 at the joint between the back joint 10 of one exterior wall panel 1 and the vertical end face of the other exterior wall panel 1.

[0009] As shown in Fig. 1, the exterior wall panel 1 is a rectangular plate-shaped exterior wall panel with a back-fitting section 10 formed on the right vertical side and a vertical end face without step processing formed on the left vertical side. The material constituting the exterior wall panel 1 is a ceramic siding that is generally used for exterior wall panels of buildings. The upper and lower sides are not particularly limited, but the upper and lower sides may also have a fitting section formed in order to install and construct multiple exterior wall panels 1 by arranging them one above the other using a ceilingless construction method.

[0010] In the exterior wall panel 1, the lateral width of the back joint 10 is designed to be narrower than the joint formed in the exterior wall panel for the conventional ceilingless construction method, and is formed to be approximately the same as the width of the protrusion 23 of the first joining accessory 2 described later, or slightly larger than the width of the protrusion 23 so that the protrusion 23 can be inserted. Specifically, it is preferably 0.5 to 3.0 mm to match the width of the protrusion 23.

[0011] This provides a high degree of prevention of misalignment of the exterior wall panel 1 when the protrusion 23 is inserted between the back-fitting cutout portion 10 of one exterior wall panel 1 and the stepless vertical end face of the other exterior wall panel 1. Furthermore, since the width of the back-fitting cutout portion 10 and the width of the protrusion 23 are approximately the same, alignment can be easily performed when inserting the protrusion 23. In addition, since the width of the back-fitting cutout portion 10 is formed narrow, even when it becomes necessary to perform cutout processing on-site, the back-fitting cutout portion 10 can be formed by simply cutting the exterior wall panel shallowly, making processing easier than before.

[0012] 2 is a metal part extending vertically along the vertical side of the exterior wall panel 1, and has a base 20 extending parallel to the exterior wall panel 1 and a protrusion 21 protruding from the base 20 toward the exterior wall panel 1. In this embodiment, the first joining accessory 2 may also be provided with a spacer 25 on the opposite side of the base 20 from the protrusion 21 in accordance with the distance from the interior wall 5.

[0013] The protrusion 21 extends parallel to and contacts the back surface of the exterior wall panel 1, and has a water-stopping surface portion 22 with a sealant 24 between it and the exterior wall panel 1. The protrusion 21 further protrudes from the water-stopping surface portion 22 toward the exterior wall panel 1, and has a protrusion 23 that is inserted into the back joint portion 10 of one of the exterior wall panels 1 and does not have a sealant between the two exterior wall panels 1.

[0014] The water-stopping surface portion 22 extends parallel to the back surface of the exterior wall panel 1 and is provided with a sealant 24 that abuts against the back surface of the exterior wall panel 1. A sealing surface is formed by pressing the back surface of the exterior wall panel 1 against the water-stopping surface portion 22 having the sealant 24 on its surface, thereby preventing rainwater and the like from entering the back side of the exterior wall panel.

[0015] The width of the protrusion 23 is configured to be approximately the same as the width of the back joint portion 10. The protrusion 23 does not have a sealant between the two exterior wall panels 1. This makes it easy to align the first joining accessory 2 and the exterior wall panel 1, and prevents the exterior wall panel 1 from shifting out of position.

[0016] The sealant 24 is made of an elastic material. It exerts a sealing effect by being placed between the water-stopping surface 22 and the rear surface of the exterior wall panel 1 and compressed. The shape of the sealant 24 is not particularly limited as long as it can prevent the intrusion of rainwater. For example, a sheet-like sealant 24 can be used by being attached along the water-stopping surface 22.

[0017] The first joining accessory 2 further has a rising portion 26 that rises from the base 20 toward the exterior wall panel side 1, at least a portion of which abuts against the exterior wall panel 1. This serves to stop rainwater that seeps in from the joint from penetrating deep into the back side of the exterior wall panel 1. In addition, the area surrounded by the base 20, the rising portion 26, the convex portion 21, and the vicinity of the joint end of the exterior wall panel 1 are connected vertically and serve as a gutter to drain water, thereby more effectively preventing the intrusion of rainwater.

[0018] The first connecting accessory 2 is configured symmetrically with respect to the protrusion 23. Specifically, the protrusion 23 is formed in a plane extending in the interior-exterior direction and the vertical direction of the building. The base 20, water-stopping surface portion 22, rising portion 26, sealing material 24, and spacer 25 are configured symmetrically with respect to this plane. As a result, the shape of the first connecting accessory 2 is symmetrical, making it less likely that a mistake will be made in the installation direction during installation work, improving workability.

[0019] As shown in Fig. 3, in the first installation structure 100, two exterior wall panels 1 are joined using a first joining accessory 2, and are attached to a building interior wall 5 using fasteners 3 and screws 4. The building interior wall 5 is disposed inside where the exterior wall panels 1 are installed, and may contain wall materials 50, pillars 51, and insulating materials etc. inside. The wall material 50 is preferably made of waterproof paper, which improves the waterproofing of the building exterior wall.

[0020] In the first installation structure 100, the protrusion 23 of the first joining accessory 2 is inserted into the back fitting portion 10 of the exterior wall panel 1, and the water-stopping surface portion 22 and the sealant 24 are abutted against the back surface of the exterior wall panel 1. Wake up No elastic sealing material is interposed between the protrusion 23 and the back-fitting portion 10, and between the protrusion 23 and the vertical end face without step processing.

[0021] With this installation structure, the sealant 24 is placed between the water-stopping surface 22 and the back surface of the exterior wall panel 1 and compressed to exert a sealing effect, so that the joint ends of the two exterior wall panels 1 are joined by a sealingless method, and construction can be performed so that the joint is not noticeable from the outside. This improves the design of the building exterior wall. In the first installation structure 100 of the present disclosure, one of the joint ends can be joined as it is without performing a jointing process, improving the efficiency of construction work. Since one of the joint ends is a vertical end face without step processing, it can also be formed by cutting one end of the exterior wall panel 1 to match the actual dimensions of the building at the construction site.

[0022] A portion of each of the two rising portions 26 of the first joining accessory 2 abuts against the two exterior wall panels, thereby blocking rainwater that has entered through the joint from penetrating deep into the back side of the exterior wall panel 1. In addition, the area surrounded by the base 20, the rising portions 26, the protruding portion 21, and the vicinity of the joint end of the exterior wall panel 1 are connected vertically and function as a rain gutter to drain water, thereby more effectively preventing the intrusion of rainwater.

[0023] Furthermore, by adopting a structure in which the width of the protrusion 23 and the width of the back-fitting portion 10 of the exterior wall panel 1 are approximately the same and no elastic sealing material is used between the two, alignment of the protrusion 23 when inserted can be easily achieved and the exterior wall panel 1 has high slippage prevention properties.

[0024] In addition, since the lateral width of the back fitting portion 10 of the exterior wall panel 1 is narrow, there is more room to fix the fasteners 3 even when the length of the exterior wall panel 1 is shortened, improving the workability of installation work in narrow places such as near windows.

[0025] More specifically, for example, in the window area of ​​a building, the length dimension of the exterior wall panel 1 needs to be adjusted according to the arrangement of the window on the exterior wall surface of the building. When the distance from the end of the adjacent exterior wall panel 1 to the window is short, the exterior wall panel 1 is provided at the window area cut short according to that distance. From the viewpoint of mounting stability, it is preferable to perform a metal fastening method using fasteners 3 on the exterior wall panel, but when the exterior wall panel 1 is cut short, the width for mounting the fasteners 3 is insufficient, and metal fastening construction may be difficult. In particular, when a back-fitting process is performed, there is even less room to mount the fasteners 3. In this regard, if the back-fitting section 10 is formed narrow, it becomes easier to fix the fasteners 3, improving the workability of the mounting work, and the metal fastening method can be performed more reliably, improving the stability of the mounting.

[0026] As shown in Figure 4, no sealant is exposed to the outside at the joints of two exterior wall panels 1 joined by the first installation structure 100 using the sealless construction method, and the building exterior wall has high design quality, watertightness, and anti-slip properties.

[0027] The above has described the first installation structure 100 which is the first embodiment of the present invention. According to the first installation structure 100, the following effects are achieved.

[0028] The first joining device 2 of the first installation structure 100 is a joining device 2 for joining two rectangular plate-shaped exterior wall panels 1 having a back-fitting portion 10 formed on one of the vertical sides, either the right or left side, and a vertical end face without step processing formed on the other vertical side, and the first joining device 2 has a base 20 extending parallel to the back surface of the exterior wall panel 1 and a convex portion 21 protruding from the base 20 toward the exterior wall panel 1 side, and the convex portion 21 has a water-stopping surface portion 22 that extends parallel to and is in contact with the back surface of the exterior wall panel 1 and has a sealing material 24 between it and the exterior wall panel 1, and a protrusion 23 that protrudes from the water-stopping surface portion 22 toward the exterior wall panel 1 side, is inserted into the back-fitting portion 10 of one of the exterior wall panels 1, and has no sealing material between it and the two exterior wall panels 1.

[0029] This provides a high degree of prevention of misalignment of the exterior wall panel 1 when the protrusion 23 is inserted between the back-fitting section 10 of one exterior wall panel 1 and the stepless vertical end face of the other exterior wall panel 1. Furthermore, since the width of the back-fitting section 10 and the width of the protrusion 23 are approximately the same, alignment can be easily achieved when inserting the protrusion 23.

[0030] In addition, in the ceilingless method of installation on the exterior walls of buildings, it is possible to ensure design, ease of installation work, and sufficient watertightness, and the width of the back joint of the exterior wall panel 1 in the horizontal direction can be designed to be narrow, so that the exterior wall panel 1 for the ceilingless method can also be used in the sealing method. By being able to use both methods with one type of panel, the burden of material management and installation work is reduced, and human errors such as panel mix-ups can be prevented. In addition, it becomes easier to install the metal fitting method, and the workability and stability of installation in narrow places such as near windows are improved.

[0031] The first joining accessory 2 further has a rising portion 26 that rises from the base 20 toward the exterior wall panel side 1, at least a portion of which abuts against the exterior wall panel 1. This serves to stop rainwater that seeps in from the joint from penetrating deep into the back side of the exterior wall panel 1. In addition, the area surrounded by the base 20, the rising portion 26, the convex portion 21, and the vicinity of the joint end of the exterior wall panel 1 are connected vertically and serve as a gutter to drain water, thereby more effectively preventing the intrusion of rainwater.

[0032] The first connecting accessory 2 is configured symmetrically with respect to the protrusion 23. As a result, the shape of the first connecting accessory 2 is symmetrical, making it difficult to make a mistake in the installation direction during installation work, improving workability.

[0033] The present disclosure also relates to a first installation structure 100 for a building exterior wall, which is configured to have two exterior wall panels 1 and a first joint fitting 2, and the two exterior wall panels 1 are joined by the first joint fitting 2 at a joint between a back joint portion 10 of one exterior wall panel 1 and the vertical end face of the other exterior wall panel, and Wake up The water-stopping surface portion 22 and the sealant 24 are abutted against the inside of the exterior wall panel 1 to form a sealing surface, thereby providing a first installation structure 100 for a building exterior wall using a sealless construction method.

[0034] This allows for an installation structure for building exterior walls that is excellent in terms of waterproofing and preventing misalignment. In addition, the ability to use both the ceilingless method and the ceilingless method on a single type of exterior wall panel reduces the burden of material management and construction work, and makes it possible to prevent human errors such as mixing up panels.

[0035] <Second embodiment> Next, a second embodiment of the present invention will be described. The second embodiment is a second installation structure 200 for a building exterior wall shown in FIG.

[0036] The second installation structure 200 has an exterior wall panel 1 and a hat-shaped protrusion 8 having a lateral width of The first embodiment First connecting part 2 Thrust Wake up Department 23 The second installation structure 200 of the building exterior wall by the sealing method is configured to include a second joining accessory 6 formed wider than the plate thickness of the building exterior wall, and a wet sealant 7.

[0037] In the second installation structure 200, the two exterior wall panels 1 are joined by a second joining accessory 6 at the joint between the back joint portion 10 of one exterior wall panel 1 and the vertical end face of the other exterior wall panel 1, a portion of the convex portion 8 is inserted between the two second exterior wall panels, and a wet sealant 7 is enclosed in the joint portion surrounded on three sides by the two exterior wall panels 1 and the convex portion 8.

[0038] The exterior wall panel 1 can be the same as that of the first embodiment. Normally, exterior wall panels for the sealingless construction method, which have a joint edge formed with a joint joint, are difficult to fill with a sealant in the joint when performing the sealing method, and are difficult to apply to the sealing method. Since the step at the joint edge of the exterior wall panel 1 of this embodiment, which is caused by the back joint joint 10, is shallow, the sealant can be filled in the same way as in the case of an exterior wall panel without a step at the joint edge. Therefore, the exterior wall panel 1 can also be installed by the sealing method.

[0039] The second joining fixture 6 is a metal part that extends vertically along the vertical side of the exterior wall panel 1, and its horizontal cross section has a hat-shaped shape as shown in Fig. 6. The second joining fixture 6 is used in the second installation structure 200 to join two laterally adjacent exterior wall panels 1 together using the back joint 10 of one exterior wall panel 1 and the vertical end surface of the other exterior wall panel 1 that has no step processing.

[0040] The sealant 7 may be made of materials and using methods that are used in normal sealing techniques. That is, sealant such as urethane or silicone may be used, and may be formed by filling the joint between the two exterior panels 1 with a paste-like sealant and allowing it to harden.

[0041] As shown in Fig. 5, in the second installation structure 200, two exterior wall panels 1 are joined using a first joining accessory 2, and are attached to a building interior wall 5 with fasteners 3 and screws 4. At this time, a convex portion 8 of a second joining accessory 6 is inserted between the two exterior wall panels 1, and a sealant 7 is enclosed in the area surrounded on three sides by the two exterior wall panels 1 and the convex portion 8.

[0042] With this installation structure, the joint ends of the two exterior wall panels 1 are joined with high sealing properties, just like end faces without any steps. This improves the water resistance of the building exterior walls. In addition, it becomes easy to use the highly aesthetic sealless method and the sealing method with excellent sealing properties in combination depending on the part of the building, improving the efficiency of the entire installation work.

[0043] The above has described the second installation structure 200 which is the second embodiment of the present invention. According to the second installation structure 200, the following effects are achieved.

[0044] The second installation structure 200 is a second installation structure 200 for a building exterior wall, which is composed of an exterior wall panel 1, a second connecting fixture 6 having a hat-shape and in which the horizontal width of the hat-shaped convex portion 8 is formed wider than the width of the protrusion 23 of the first connecting fixture 2, and a wet sealant 7, in which the two exterior wall panels 1 are joined by the second connecting fixture 6 at the joint between the back-fitting portion 10 of one exterior wall panel 1 and the vertical end face of the other exterior wall panel 1, a portion of the convex portion 8 is inserted between the two exterior wall panels 1, and the sealant 7 is enclosed in the joint portion surrounded on three sides by the two exterior wall panels 1 and the convex portion 8, in this installation structure for a building exterior wall by a sealing method.

[0045] This allows the exterior wall panel 1 used in the sealingless method to be used in conjunction with the sealing method for mounting on the exterior wall of a building, and can exhibit excellent sealing properties similar to those of an exterior wall panel that has no steps on the joining end surfaces. [Explanation of symbols]

[0046] REFERENCE SIGNS LIST 1...exterior wall panel, 10...back joint, 2...first joint accessory, 20...base, 21...projection, 22...waterstop surface, 23...projection, 24...sealing material, 25...spacer, 26...rising portion, 3...fastening metal, 4...screw, 5...inner wall, 50...wall material, 51...pillar, 6...second joint accessory, 7...sealing material, 8...projection, 100...first installation structure, 200...second installation structure

Claims

1. A joining accessory for joining two rectangular exterior wall panels, in which a back joint is formed on one of the vertical sides, either the right side or the left side, and a vertical end surface without step processing is formed on the other vertical side, The joining components are: A base portion extending parallel to the rear surface of the exterior wall panel; A protrusion protruding from the base toward the exterior wall panel; a rising portion rising from the base portion toward the exterior wall panel side, at least a portion of which abuts against the exterior wall panel; The protrusion is A water-stopping surface portion extending parallel to the rear surface of the exterior wall panel and having a sealant that abuts against the rear surface of the exterior wall panel; a protrusion portion that protrudes from the water-stopping surface portion toward the exterior wall panel side and is inserted into a back joint portion of one of the exterior wall panels, and has no sealant between the two exterior wall panels; The protrusion is formed by folding a plate material, The width of the protrusion is approximately the same as the width of the back-fitting portion, The area surrounded by the base, the rising portion, the convex portion, and the joint end portion of the exterior wall panel is connected vertically and functions as a rain gutter.

2. The joining fixture of claim 1 , wherein the joining fixture is configured symmetrically about the protrusion.

3. The two exterior wall panels; A structure for installing a building exterior wall comprising the joint accessory according to claim 1 or 2, The two exterior wall panels are joined by the joint fitting at a joint between the back joint portion of one exterior wall panel and the vertical end surface of the other exterior wall panel, The protrusion is inserted into the backing portion, The water-stopping surface portion and the sealing material are abutted against the inside of the exterior wall panel to form a sealing surface, in this building exterior wall installation structure using a sealless construction method.

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