Substrate fittings, panels for mounting finishing materials, structures for mounting finishing materials, and buildings

Abstract

To provide a substrate metal fitting which does not block (restrict) a locking of a panel or a finishing material in earthquake, a panel for mounting the finishing material, the finishing material mounting structure, and building.SOLUTION: The substrate metal fitting consisting of a plurality of metal fittings to mount a finishing material to a panel has a first substrate metal fitting mounted to a surface of the panel and a second substrate metal fitting with the finishing material mounted directly of indirectly, the first substrate metal fitting is mounted to the panel by a first mount shaft, the second substrate metal fitting is mounted to the first substrate metal fitting by a second mount shaft being coaxial or substantially parallel to the first mount shaft while being rotatable in a plane on the first substrate metal fitting, the first mount shaft and the second mount shaft have separated mount positions in out of plane direction when being coaxial and are deflected for a predetermined interval in a predetermined radial direction around the first mount shaft of the second mount shaft when being substantially parallel.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a base fitting, a finish material mounting panel, a finish material mounting structure, and a building.

Background Art

[0002] Conventionally, in order to finish a panel with a finish material (decorative board) (such as metal pasting, stone pasting, ceramic board pasting, etc.), a finish material mounting panel as shown in FIG. 14 has been used (for example, Patent Document 1). In this finish material mounting panel, a plate-shaped second base fitting 113 (receiving fitting) is attached to a panel 110 by a locking fitting 109, and a finish material 131 is attached to the second base fitting 113 via a connecting member 130. The connecting member 130 is composed of a fitting 126 having a substantially L-shaped cross section attached to the second base fitting 113 by welding or the like, and a plate-shaped fitting 122 coupled to the fitting 126 by bolts 123 and nuts 124.

[0003] The fitting 122 is provided with a rod-shaped protrusion protruding in the vertical direction at the tip of a plate having bolt insertion holes, and the protrusion is fitted into holes provided in the end faces of the upper finish material 131 and the lower finish material 131, respectively. The weight of the upper finish material 131 is supported by the plate.

[0004] When assuming an ALC panel as the finish material mounting panel, as shown in FIG. 15(a), the panel is attached to a building frame at two points above and below using panel mounting fittings 140. With this structure, when an earthquake occurs, the inter-story displacement of the building frame is diverted by the panel itself locking (see FIG. 15(b)).

[0005] The finishing material 131 is attached to this panel after the second base fitting 113 is attached using the various fittings described above. In the case of the second base fitting 113, it is fixed to one panel with fittings in several places, and additional fittings (connecting members) such as fitting 126 are required to attach the finishing material 131. Fitting 126 also serves as a guide fitting (horizontal level guide) for directly attaching the finishing material 131. This fitting 126 (connecting member) needs to be attached to several panels in a row to maintain a consistent level (see Figure 16). [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 6-185159 [Overview of the project] [Problems that the invention aims to solve]

[0007] However, when finishing materials are applied to reinforced concrete (RC) wall panels, the wall does not rock. But when finishing materials are applied to steel-framed wall panels that have a rocking mechanism, the finishing materials restrain the rocking of the wall panels, and seismic forces are applied to both the wall panels and the finishing materials.

[0008] As shown in Figure 16, when a connecting member (metal fitting 126) that fixes the finishing material is attached to adjacent panels 110 that have different rocking behaviors during an earthquake, either directly or via the metal fitting, it not only restrains the rocking of each adjacent panel 110 during an earthquake, but also restrains the rocking of the finishing material. In particular, the high restraining force and frictional force and poor sliding against rotation between the panel and the finishing material result in excessive loads from seismic forces being placed on the panel, the finishing material, and the metal fittings that attach them. Furthermore, conventional mounting structures lack versatility in terms of cost and ease of installation due to the limited shape of the base fittings.

[0009] This invention was proposed in view of the above-mentioned conventional circumstances, and the object of this invention is to provide a base fitting, a panel for attaching finishing materials, a structure for attaching finishing materials, and a building that do not hinder (restrain) the rocking of panels and finishing materials during an earthquake. [Means for solving the problem]

[0010] [1] A base fitting consisting of multiple metal fittings for attaching a finishing material to a panel, The aforementioned base fitting comprises a first base fitting attached to the surface of the panel and a second base fitting to which the finishing material is directly or indirectly attached. The first base fitting is attached to the panel by the first mounting shaft. The second mounting bracket is attached to the first mounting bracket by a second mounting shaft that is coaxial with or substantially parallel to the first mounting shaft, and is rotatable in plane relative to the first mounting bracket. A base fitting characterized in that, when the first mounting shaft and the second mounting shaft are coaxial, their mounting positions are separated in the out-of-plane direction, and when they are substantially parallel, they are offset at a predetermined interval in a predetermined radial direction centered on the first or second mounting shaft. [2] The aforementioned base fitting has a second bolt provided on the first base fitting and a second nut that screws onto the second bolt, The base fitting according to [1], wherein the second base fitting has an insertion hole through which the second bolt is inserted, and the second base fitting is attached to the first base fitting by screwing the second bolt and the second nut through the insertion hole. [3] The aforementioned base fitting has a first nut embedded in the panel and a first bolt that screws into the first nut. The first base fitting has a through hole through which the first bolt is inserted, and the first base fitting is attached to the panel by screwing the first nut and the first bolt through the through hole, as described in [1] or [2]. [4] A base fitting according to any one of [1] to [3], wherein the tightening torque for attaching the second base fitting to the first base fitting is equal to or less than the tightening torque for attaching the first base fitting to the panel. [5] The aforementioned base fitting has a second bolt provided on the first base fitting and a second nut that screws onto the second bolt, The base fitting according to any one of [2] to [4], wherein the second nut is a nut having a loosening prevention mechanism or a double nut. [6] A base fitting according to any one of [1] to [5], wherein a sliding material is placed between the first base fitting and the second base fitting. [7] The base fitting according to any one of [1] to [6], wherein the cross-sectional shape of the first base fitting is L-shaped, I-shaped, U-shaped, or square-shaped. [8] The base fitting according to any of [1] to [7], wherein the cross-sectional shape of the second base fitting is L-shaped, I-shaped, U-shaped, or square-shaped. [9] A panel for attaching finishing materials, to which the base fittings described in any of [1] to [8] are attached.

[10] A panel for mounting finishing materials, to which a base fitting consisting of multiple metal fittings for fixing finishing materials to the panel is attached, The aforementioned base fittings include a first base fitting attached to the surface of the panel, The finishing material is attached directly or indirectly to a second base fitting, The first base fitting is attached to the panel by the first mounting shaft. The second mounting bracket is attached to the first mounting bracket by a second mounting shaft that is coaxial with or substantially parallel to the first mounting shaft, and is rotatable in plane relative to the first mounting bracket. At the longitudinal end of the panel, the base fitting is attached by changing the attachment orientation to the panel on the upper end side and the lower end side so that the fixing position of the finishing material is closer to the longitudinal end side of the panel. A panel for attaching a finishing material.

[11] A finishing material attachment structure in which a finishing material is attached directly or via a connecting member to the base fitting of the panel for attaching a finishing material according to [9] or

[10] .

[12] The connecting member is a fitting attached across a plurality of the panels for attaching a finishing material. The finishing material attachment structure according to

[11] .

[13] A building provided with the finishing material attachment structure according to

[11] or

[12] .

Effect of the Invention

[0011] According to the present invention, it is possible to provide a panel for attaching a finishing material, a finishing material structure, and a building that do not inhibit (restrain) the locking of the panel and the finishing material during an earthquake.

Brief Description of the Drawings

[0012] <op> [Figure 1] It is an exploded perspective view showing an embodiment of the panel for attaching a finishing material of the present invention. [Figure 2] It is a cross-sectional view showing an embodiment of the panel for attaching a finishing material of the present invention. [Figure 3] It is a partial cross-sectional view showing an embodiment of the panel for attaching a finishing material of the present invention. [Figure 4] It is a perspective view of a locking fitting used for the panel for attaching a finishing material of the present invention. [Figure 5] It is a perspective view of the base fitting of the present invention. [Figure 6] It is a cross-sectional view showing a state in which a finishing material is attached to the panel for attaching a finishing material of the present invention. [Figure 7] It is a diagram schematically showing a state in which the panel for attaching a decorative board of the present invention locks. [Figure 8]A side view showing one embodiment of the panel for mounting finishing materials of the present invention. [Figure 9] This is a cross-sectional view showing one embodiment of a panel for mounting finishing materials according to the present invention. [Figure 10] This is a cross-sectional view showing one embodiment of a panel for mounting finishing materials according to the present invention. [Figure 11] This figure shows another embodiment of the panel for mounting finishing materials according to the present invention. [Figure 12] This figure shows another embodiment of the panel for mounting finishing materials according to the present invention. [Figure 13] This figure shows another embodiment of the panel for mounting finishing materials according to the present invention. [Figure 14] This is a cross-sectional view showing a conventional panel for mounting finishing materials. [Figure 15] This diagram schematically illustrates how a conventional panel locks into place. [Figure 16] This diagram schematically illustrates how a conventional panel locks into place. [Modes for carrying out the invention]

[0013] Hereinafter, one embodiment of the base fitting and finishing material mounting panel of the present invention will be described in detail with reference to the figures. Figures 1 to 5 show one embodiment of the base fitting and finishing material mounting panel of the present invention.

[0014] <First Embodiment> In Figures 1 and 2, the finishing material mounting panel 1 is a finishing material mounting panel in which a base fitting 20 for mounting the finishing material is attached to a panel 10, and an elongated hole 11 is drilled from the end face of the panel 10 in a direction substantially perpendicular to the end face, and a counterbore hole 12 is drilled from the surface substantially perpendicular to the surface so as to connect the surface of the panel 10 on the side of the finishing material 30 with the elongated hole 11 (see Figure 3). Panel 10 is attached to the building frame. Panel 10 is not particularly limited; here, a lightweight aerated concrete panel is shown as an example, but it can also be applied to inorganic panels commonly used as building panels, such as cement-based extruded panels. The panel surface may be left in its raw state or painted.

[0015] A rod-shaped or tubular steel material 13 is inserted into the elongated hole 11 from the end face of the panel 10, and a locking fitting 14 is inserted into the counterbore hole 12 from the finishing material 30 side of the panel 10. Inside the panel 10, the steel material 13 and the locking fitting 14 are engaged. As shown in Figure 4, the locking fitting 14 consists of an O-nut 15 (first nut) having an engagement hole 15a, a bolt 16 (first bolt), and a washer 17. The steel material 13 is engaged with the engagement hole 15a of the O-nut 15 inside the panel 10.

[0016] Figure 3 is a partial cross-sectional perspective view of Figure 1. To achieve the configuration shown in Figure 1, an elongated hole 11 is drilled on the end face of the panel 10, approximately perpendicular to that face, and a counterbore hole 12 is drilled from the outer surface of the panel 10, reaching perpendicular to this face, to connect them. The elongated hole 11 and the counterbore hole 12 can be easily drilled with a handheld electric drill commonly used at construction sites, but they can also be drilled in advance during the panel manufacturing process. Next, the engagement hole 15a of the O-nut 15 of the locking fitting 14 is inserted into the elongated hole 11 from the counterbore hole 12, and the steel material 13 is inserted from the elongated hole 11 so as to pass through the engagement hole 15a. The length of the O-nut 15 should not reach the outside of the counterbore hole 12.

[0017] The diameter of the engagement hole 15a of the O-nut 15 is approximately equal to the outer diameter of the steel material 13. By passing the steel material 13 through the engagement hole 15a, the O-nut 15 and the steel material 13 engage and become one. The steel material 13 can be passed horizontally through a single panel 10, for example, at multiple positions on the top and bottom, and the locking fittings 14 can be attached in a vertical direction (the longitudinal direction of the panel) to fix the first base fitting 21, and these can be increased as needed. Alternatively, the O-nut 15 may be positioned and fixed by welding to the reinforcing bars inside the panel 10. In that case, the steel material 13 and the engagement hole 15a can be omitted. The mounting positions of the O-nuts 15 (and consequently the mounting positions of the base fittings 20) are arranged in a line along the longitudinal direction, approximately in the center of the width direction of the panel 10. When the mounting positions of the O-nuts 15 are arranged approximately in the center of the width of the panel 10, the panel 10 and the finishing material 30 become easier to lock together, and further seismic resistance can be expected. The spacing of the O-nuts 15 in the vertical direction (longitudinal direction of the panel) is preferably 600 mm or less. In addition, the pitch of adjacent base fittings 20 in the horizontal direction (width direction of the panel 10) is approximately equal to the width dimension of the panel 10, or approximately an integer multiple of the width dimension of the panel 10.

[0018] In this embodiment, the base fittings 20 are attached to the panel 10. In this embodiment, the base fitting 20 comprises at least a first base fitting 21 arranged on the surface of the panel 10 and a second base fitting 22 for fixing the finishing material 30, and has a locking mechanism between the first base fitting 21 and the second base fitting 22.

[0019] A flat first base fitting 21 and an L-shaped second base fitting 22 are arranged in this order on the O-nut 15 exposed on the surface of the panel 10. At this time, it is preferable to place a backup material 24 inside the panel 10, in front of the elongated hole 11 of the counterbore hole 12.

[0020] Figure 5 is a perspective view showing the base fittings 20 (first base fitting 21 and second base fitting 22) separately. The base fitting 20 includes an O-nut 15 (first nut: not shown in Figure 5) embedded in the panel 10, a bolt 16 (first bolt) that screws into the O-nut 15, and a bolt portion 21b (second bolt) and a nut 23 (second nut) that screws into the bolt portion 21b, which are provided integrally with the first base fitting 21. In a side view, the bolt portion 21b is arranged approximately parallel to the bolt 16.

[0021] The first base fitting 21 is positioned on the surface of the panel 10. The first base fitting 21 has an insertion hole 21a through which a bolt 16 is inserted, and the first base fitting 21 is attached to the panel 10 by screwing the O-nut 15 and the bolt 16 through the insertion hole 21a. The cross-sectional shape of the first base fitting 21 is, for example, L-shaped, I-shaped, U-shaped, or square-shaped. Furthermore, the method of fixing the first base fitting 21 to the panel 10 is not limited, as long as it is fixed to the panel 10. For example, the first base fitting 21 may be fixed to the panel 10 by passing a locking fitting such as a bolt fixed to the panel 10 through the insertion hole 21a, without using an O-nut 15. Alternatively, the first base fitting 21 may be directly fixed to the panel 10 with screws or post-installed anchors.

[0022] The second base fitting 22 is used to fix the finishing material 30 directly or indirectly. The second base fitting 22 has a through hole 22a through which a bolt portion 21b is inserted, and the second base fitting 22 is attached to the first base fitting 21 by screwing the bolt portion 21b and a nut 23 through the through hole 22a. The second base fitting 22 is rotatable in plane on the first base fitting 21 with the mounting axis to the first base fitting 21 (shown as the dotted line T in the figure, the second mounting axis), i.e., the bolt portion 21b, as the pivot axis.

[0023] When the first base fitting 21 is rotated on the surface of panel 10, the frictional force between panel 10 and the first base fitting 21 is large, resulting in poor sliding. Therefore, the second base fitting 22 is preferentially rotated on the surface of the first base fitting 21. Because the first base fitting 21 and the second base fitting 22 are in metal-to-metal contact, the frictional force is reduced (allowing for better sliding), enabling the second base fitting 22 to rotate smoothly and improving the locking performance. The first base fitting 21 and the second base fitting 22 are preferably made of metal. Specifically, they are made of materials such as SS material (rolled steel for general structural use) or stainless steel plate.

[0024] In particular, the panel 1 for mounting the finishing material of this embodiment is characterized in that the mounting axis S of the first base fitting 21 to the panel 10 by bolts 16 (shown as the dotted line S in the figure, the first mounting axis) and the mounting axis T of the second base fitting 22 by bolt portion 21b (the second mounting axis) are substantially parallel in a side view. Furthermore, they are offset at a predetermined interval in a predetermined radial direction (vertical direction and / or horizontal direction) centered on the first or second mounting axis. This makes it possible to separate the axis to be fixed from the axis to be rotated, contributing to the promotion of rotation and the prevention of loosening of the mounting part (safety). The figure shows an example where they are offset in the vertical direction. The predetermined interval is such that it does not hinder the rotation of the second base fitting 22.

[0025] The offset between the mounting position of the first base fitting 21 (e.g., mounting axis S) and the mounting position of the second base fitting 22 (e.g., mounting axis T) allows for individual setting and control of the degree of fixation. In other words, by offsetting the mounting positions (e.g., mounting axes), different tightening torques can be used, allowing the first base fitting 21 to be firmly fixed and the second base fitting 22 to be loosely fixed to allow rotation (however, if they are coaxial, a rotational force will inevitably be generated in the nut on the panel fixing side via the same bolt). Therefore, during an earthquake, a difference will be created between the rotation of the first base fitting 21 and the rotation of the second base fitting 22. For example, the rotation radius and rotation phase will be different. Then, for example, the rotation of the first base fitting 21 and the rotation of the second base fitting 22 will cancel each other out, allowing for efficient deflection of displacement and more reliably preventing damage to the panel 10 and finishing material 30. Furthermore, shifting the mounting position simplifies the verification of the fixing points. During the final inspection of the construction or during maintenance, it is possible to visually check whether the nuts 23 of the first base fitting 21 are loose.

[0026] Furthermore, as shown in Japanese Patent Publication No. 2018-188850, if the first fitting (fitting for fixing to the panel) and the second fitting (fitting for rotation) are fixed on the same axis, if the fixing force is strong, the rotation of the second fitting will be restrained, and if the fixing force is weak, the first fitting that should be fixed may rotate, making it difficult to set and manage the fixing force.

[0027] It is preferable that the tightening torque of the nut 23 that screws onto the bolt portion 21b for attaching the second base fitting 22 to the first base fitting 21 is equal to or less than the tightening torque of the bolt 16 that screws onto the O-nut 15 for attaching the first base fitting 21 to the panel 10. In the finishing material mounting panel 1 of this embodiment, a difference is provided between the tightening torque of the first base fitting 21 and the tightening torque of the second base fitting 22. Specifically, by making the tightening torque of the nut 23 that fixes the second base fitting 22 to the first base fitting 21 smaller than the tightening torque of the bolt 16 that fixes the first base fitting 21 to the panel 10, a rotation mechanism is formed that preferentially rotates between the first base fitting 21 and the second base fitting 22 during an earthquake, rather than between the panel 10 and the first base fitting 21. This allows for more efficient dissipation of displacement caused by earthquakes. By preferentially rotating the second base fitting 22 on the first base fitting 21, the rotation of the first base fitting 21 on the surface of the panel 10 can be kept to a minimum, thereby preventing wear on the panel surface, such as peeling of the paint on the panel surface or abrasion and damage to the panel substrate surface.

[0028] The tightening torque of the bolt 16 that secures the first base fitting 21 is preferably, for example, 20 to 25 N·m. Similarly, the tightening torque of the nut 23 that secures the second base fitting 22 is preferably, for example, 15 to 18 N·m. If the tightening torque is too low, the fastening may loosen, and if it is too high, the bolt and nut may break.

[0029] It is preferable that the nut 23 used to attach the second base fitting 22 to the first base fitting 21 has a loosening prevention mechanism or is a double nut. The second base fitting 22 is typically attached to the first base fitting 21 using bolts and nuts. In this case, it is preferable to use nuts with a loosening prevention mechanism or to use double nuts. This prevents the nuts 23 from loosening even if the tightening torque of the nuts 23 is relatively small when attaching the first base fitting 21. The anti-loosening mechanism for the nut 23 is not particularly limited as long as it can achieve the purpose of preventing loosening.

[0030] Thus, instead of directly attaching the second base fitting 22 to the panel 10, the second base fitting 22 is attached to the panel 10 via the first base fitting 21, and the tightening torque of the second base fitting 22 is made equal to or less than the tightening torque of the first base fitting 21. In the event of an earthquake, the second base fitting 22 preferentially rotates within the plane of the first base fitting 21 in response to the rocking of the panel 10. As a result, the connecting member 31 and the finishing material 30 attached to the second base fitting 22 can also rock, allowing them to withstand the displacement (see Figure 7). Consequently, damage to the panel 10 and the finishing material 30 due to excessive force can be avoided.

[0031] Furthermore, it is preferable that a sliding material is placed between the first base fitting 21 and the second base fitting 22. The number of sliding materials may be multiple. This reduces the frictional force between the first base fitting 21 and the second base fitting 22, thereby promoting rotation. This prevents the rocking of the panel 10 and the finishing material 30 from being hindered (restrained) during an earthquake. The sliding material is not particularly limited as long as it can reduce the frictional force between the first base fitting 21 and the second base fitting 22, but a stainless steel washer 25 is an example. The first base fitting 21 and the second base fitting 22 may be subjected to a surface treatment that reduces the coefficient of friction.

[0032] Next, the structure in which the finishing material 30 is attached to the panel 10 will be explained with reference to Figures 6 and 7. In Figures 6 and 7, the finishing material 30 is attached to the second base fitting 22 of the panel 10 via a connecting member 31 (base rail). The cross-sectional shape of the second base fitting 22 is, for example, L-shaped, I-shaped, U-shaped, or square-shaped. Because the second base fitting 22 has the above cross-sectional shape, the connecting member 31 or finishing material 30 can be fixed to the second base fitting 22 without interfering with the first base fitting 21 fixed to the panel 10 or the bolts used to attach the first base fitting 21 to the panel 10.

[0033] The connecting member 31 is composed of an L-shaped metal fitting attached to the second base fitting 22 by welding, bolts, nuts, etc. The connecting member 31 serves as a guide fitting (horizontal level guide) for directly attaching the finishing material 30. This connecting member 31 needs to be attached continuously across several panels 10 in order to maintain a consistent level (see Figure 7). The finishing material 30 is attached to this connecting member 31. Various types of finishing materials 30 (decorative panels) can be used, such as cement-based, gypsum-based, or metal-based materials. The size of the finishing material 30 is also suitable, for example, from 0.6m x 0.6m to 1.2m x 2.4m or 0.6m x 5m.

[0034] As described above, in conventional methods, when connecting members (metal fittings 126) were attached in a continuous manner to several panels 110, even if the panels themselves could rock due to inter-story displacement during an earthquake, the base fittings and connecting members could not rock (see Figure 16). Therefore, there was a risk that the panels 110 and the finishing material would be damaged due to excessive force.

[0035] In contrast, in the finishing material mounting structure of this embodiment, the second base fitting 22 is attached via the first base fitting 21. As shown in Figure 7, even when the connecting member 31 is attached to several panels 10 in a continuous manner, the second base fitting 22 preferentially rotates in plane on the first base fitting 21 in response to the rocking of the panels 10 during an earthquake. This allows the second base fitting 22 and the connecting member 31 to rock while maintaining a horizontal position. When the connecting member 31 rocks, the displacement caused by the rocking of the panels 10 can be absorbed by the second base fitting 22, and consequently by the connecting member 31 and the finishing material 30 attached to the second base fitting 22. This prevents excessive force from being applied to the panels 10 and the finishing material 30, making them less susceptible to damage.

[0036] In the finishing material mounting structure of this embodiment, it is preferable to cut the edges of the connecting member 31, that is, to divide the connecting member, at locations where the wall has a superior or inferior position, such as at locations that straddle opening reinforcement members and at outside corners.

[0037] For example, as shown in circle A in Figure 8, by cutting the edge of the connecting member 31 at the boundary between the general wall and the opening (where it straddles the vertical member of the opening reinforcement), the finishing material 30 does not hinder (restrain) the rocking of the panel 10 during an earthquake.

[0038] Furthermore, as shown by circle B in Figure 8, even in corner walls where the rocking behavior differs between the in-plane and out-of-plane directions, cutting the edge of the connecting member 31 prevents the finishing material 30 from hindering (restraining) the rocking of the panel 10 during an earthquake.

[0039] In the above-described embodiment, the example given was that the connecting member 31 is attached across several panels 10. However, if the connecting member 31 is attached within a single panel 10 rather than across multiple panels 10, the first base fitting 21 may be attached in two or more places within the single panel 10, substantially parallel to or substantially horizontal to one side of the panel 10.

[0040] Incidentally, in the configuration described above, since the finishing material 30 has a primary waterproofing function, waterproofing treatment is not required for the substrate panel 10, and legally, this can be satisfied only when fire resistance is required by inserting rock wool or glass wool into the horizontal joints. When a secondary waterproofing function was required, sealant had to be applied to the vertical and horizontal joints of panel 10, and the areas around the second base fittings 22 and nuts 23 had to be sealed from the outside to prevent water leakage. Sealing around the fittings required a long length of sealant, and it was necessary to remember to seal both the top and bottom. Sealing around the bolts was also complicated due to the large number of locations. On the other hand, it was difficult to secure enough sealant around the fittings to match the thickness of the fittings, making it difficult to ensure quality. Furthermore, since the work was done from the outside, there were issues with ensuring long-term durability and compromising the aesthetics.

[0041] For this reason, for example, in panel 10, an irregularly shaped sealing material 26 is press-fitted onto the surface of the counterbore 12, that is, between the backup material 24 and the first base fitting 21 (see Figure 1).

[0042] However, if the sealant deteriorated or was poorly filled, the elongated hole 11 for the steel material 13, which was connected to the counterbore 12 of the O-nut 15, could become a waterway and cause water to leak into the interior.

[0043] Therefore, in this embodiment, the elongated holes 11 on the edges of the panel 10 are filled with sealing material 27 (or putty material) (see Figure 1). By filling the elongated holes 11 for the steel members 13 with sealant 27 in addition to the counterbore holes 12, watertightness can be ensured from the elongated holes 11 (water outlet side) for the steel members 13 if the sealing of the counterbore holes 12 fails to function due to poor workmanship or other reasons. The sealing of the elongated holes 11 can be done, for example, at a factory. By using this double waterproofing method, the waterproofing of the fixing points of the finishing material can be made more reliable.

[0044] The amorphous sealants 26 and 27 are not particularly limited, and any wet sealants commonly used for sealing building materials can be used as appropriate. However, sealants that are highly flexible and less likely to cause damage to the base material when deformed by external forces such as earthquakes, such as modified silicone, acrylic urethane, and polyurethane sealants, are preferred. Specific examples include silicone-based, modified silicone-based, polysulfide-based, acrylic urethane-based, polyurethane-based, modified polysulfide-based, acrylic, SBR-based, butyl rubber-based, and polyisobutylene-based sealants as specified in JIS A 5758:1997.

[0045] The softness of the sealants 26 and 27 is not particularly limited, but they must be soft enough to be pressed in with the bolt 16 and the first base fitting 21, allowing them to spread sufficiently into the hole and inside the nut, filling the gap. If they are too hard, it will be difficult to press them into the hole, and if they are too soft and runny, gravity will cause them to settle unevenly during press-fitting, making it impossible to fill the hole uniformly. There is no particular limit to the amount of sealant 26 and 27 to be filled, but if there is too little, the gaps may not be sufficiently filled and waterproofing may not be ensured, and if there is too much, the excess sealant will spill out and be wasted.

[0046] As a third level of waterproofing, sealant 28 may be filled into the joints between the panels 10 (see Figure 6). As for the configuration of the joints, as shown in Figure 10, a double seal configuration can be provided, in which sealant 50, backing material 51, sealant 50, and backing material 52 are arranged in that order from the outdoor side. Alternatively, a single seal configuration can be provided, in which sealant 50 and backing material 51 are arranged in that order from the outdoor side, but the double seal configuration provides better watertightness. This makes the watertightness function more perfect. In the example shown in Figure 10, fire-resistant joint material 53 is filled on the indoor side of the backing material 52.

[0047] Backing material is made of an elastically deformable material, and foamed polyethylene and foamed polystyrene are commonly used. Furthermore, when no external force is applied, the cross-sectional shape of the backing material is not limited, but examples include rectangular, trapezoidal, circular, semicircular, semi-elliptical, and triangular shapes. In the example shown in Figure 10, backing material 51 has a rectangular cross-sectional shape, and backing material 52 has a circular cross-sectional shape.

[0048] Alternatively, a bond breaker may be used instead of the backup material 51. This can extend the lifespan of the sealant. As a bond breaker, any adhesive tape that does not adhere to the sealant can be used, such as paper-based, cloth-based, or plastic-based adhesive tapes.

[0049] In conventional structures, in order to avoid interference between the fasteners for fixing the panel 10 to the building frame (panel fasteners 40) and the fasteners for attaching the finishing material 30 to the panel 10 (locking fasteners 14), it is necessary to install them with a certain distance between them. Therefore, when multiple base fasteners are installed in the same orientation along the length of the panel 10, the fixing position of the finishing material 30 at the longitudinal end of the panel 10 will be set at a position a certain distance from the longitudinal end of the panel 10 (horizontal joint), resulting in a large distance from the horizontal joint of the panel 10 to the fixing position of the finishing material 30 (x in Figure 6). As a result, the longitudinal end of the finishing material 30 is prone to warping due to external forces such as wind loads.

[0050] Therefore, in this embodiment, as shown in Figure 9, the mounting direction of the base fittings 20 (first base fitting 21 and second base fitting 22) to the panel 10 is not all the same direction. Instead, the mounting direction of the base fittings 20 to the panel 10 is changed so that the fixing position of the finishing material 30 is closer to the longitudinal end of the panel 10. At the longitudinal end (horizontal joint) of panel 10, the mounting orientation of the first base fitting 21 and the second base fitting 22 is reversed from the conventional method, so that the mounting position of the base fitting 20 to the connecting member 31 faces the upper end side (see Figure 9(a)) and the lower end side (see Figure 9(b)) of panel 10, respectively. This reduces the distance from the horizontal joint of panel 10 to the fixing position of the finishing material 30 (x1, x2 in Figure 9).

[0051] For example, fasteners for the base fittings are provided in an area at least 100 mm away from the longitudinal end of the panel 10, and the side (horizontal part) of the second base fitting 22 that fixes the finishing material 30 is reversed from the conventional method and fixed toward (closer to) the longitudinal end of the panel 10. This makes it possible to position the fixing point of the end of the finishing material 30 as close as possible to the horizontal joint of the panel 10. Furthermore, it suppresses warping of the longitudinal end of the finishing material 30 due to external forces such as wind loads, and allows the end of the finishing material 30 to be stably fixed.

[0052] Furthermore, the present invention also includes a finishing material mounting structure in which a finishing material 30 (decorative panel) is attached to a finishing material mounting panel 1, and a building equipped with the finishing material mounting structure. In the finishing material mounting structure and building of the present invention, the rocking of the panel and finishing material is not hindered (restrained) during an earthquake. This makes it possible to deflect inter-story displacement during an earthquake and makes it less susceptible to damage.

[0053] <Second Embodiment> The following describes in detail a second embodiment of the base fitting and finishing material mounting panel of the present invention with reference to the figures. Figures 11 to 13 show the base fitting of this embodiment, where (a) is a cross-sectional view and (b) is a top view. In the following description, we will mainly explain the parts that differ from the first embodiment described above, and will omit explanations of parts that are the same.

[0054] The base fitting of this embodiment is a base fitting consisting of a plurality of fittings for attaching a finishing material to a panel, and includes a first base fitting 21 that is attached to the surface of the panel 10, and a second base fitting 22 to which the finishing material is attached directly or indirectly. In this embodiment, the base fitting 20 is attached to the panel 10 by a mounting shaft S (first mounting shaft), and the second base fitting 22 is attached to the first base fitting 21 by a mounting shaft T (second mounting shaft) that is coaxial with the mounting shaft S, and is rotatable in-plane on the first base fitting 21. The mounting positions of the mounting shaft S and the mounting shaft T are separated in the out-of-plane direction.

[0055] Figure 11 shows the case where the cross-sectional shape of the first base fitting 21 of this embodiment is square-shaped, Figure 12 shows the case where the cross-sectional shape of the first base fitting 21 is U-shaped (vertical orientation), and Figure 13 shows the case where the cross-sectional shape of the first base fitting 21 is U-shaped (horizontal orientation).

[0056] In the first embodiment described above, the first base fitting 21 was substantially planar. However, by making the first base fitting 21 have a cross-sectional shape of a square or a U, the second base fitting 22 can be attached to the first base fitting 21 by a mounting shaft T that is coaxial with the mounting shaft S. The mounting positions of the mounting shaft S and the mounting shaft T are separated in the out-of-plane direction. Thus, in this embodiment as well, by shifting the mounting positions of the mounting shaft S and the mounting shaft T in the out-of-plane direction, it is possible to separate the shaft to be fixed from the shaft to be rotated, which contributes to promoting rotation and preventing loosening of the mounting part (safety).

[0057] Furthermore, because the mounting position of the first base fitting 21 (e.g., mounting axis S) and the mounting position of the second base fitting 22 (e.g., mounting axis T) are offset in the out-of-plane direction, the degree of fixation can be individually set and controlled. For example, by firmly fixing the first base fitting 21 and loosely fixing the second base fitting 22 to allow rotation, a difference is created in the rotation of the first base fitting 21 and the second base fitting 22 during an earthquake. For example, the rotation radius and rotation phase may differ. Then, for example, the rotation of the first base fitting 21 and the rotation of the second base fitting 22 cancel each other out, allowing displacement to be efficiently absorbed and making it more certain to avoid damage to the panel 10 and the finishing material 30.

[0058] While embodiments of the present invention have been described above, the present invention is not limited thereto and can be modified as appropriate without departing from the spirit of the invention. The present invention is not limited to indoor or outdoor use and is widely applicable when attaching finishing materials to panels. [Industrial applicability]

[0059] By using the finishing material mounting panel according to the present invention, the panel can withstand inter-story displacement during an earthquake, making it less susceptible to damage, and thus can be widely used as a finishing material mounting structure for buildings. [Explanation of symbols]

[0060] 1. Panel for mounting finishing material 10 panels 11 long hole 12 Spot hole 13 Steel materials 14. Locking hardware 15. O-nut (first nut) 15a Engagement hole 16 bolts (first bolt) 17: Washer 20 Base fittings 21. First base metal fitting 21a Through hole 21b Bolt section (second bolt) 22. Second base fitting 22a Through hole 23. Nut (second nut) 24 Backup material 25 Stainless steel washers (sliding material) 26. Sealant 27. Sealant 30 Finishing materials 31. Connecting component (ruler fitting) 40 Panel fasteners 50 sealant 51 Backup material 52 Backup material 53 Fireproof joint material

Claims

1. A base fitting consisting of multiple metal fittings for attaching a finishing material to a panel, The aforementioned base fitting comprises a first base fitting and a second base fitting to which the finishing material is directly or indirectly attached. The first base fitting has an insertion hole, and a first locking fitting having a first mounting shaft for attaching the first base fitting is passed through the insertion hole and attached to the panel. The second base fitting has an insertion hole through which a second mounting shaft for attaching the second base fitting is inserted, and is rotatable in plane with the second mounting shaft as the pivot axis. If the first mounting shaft and the second mounting shaft are coaxial, their mounting positions are separated in the out-of-plane direction. If they are substantially parallel, the first mounting shaft is offset from the second mounting shaft in the vertical and / or left-right directions so as not to obstruct the rotation of the second base fitting. The degree of fixation of the second base fitting is less than the degree of fixation of the first base fitting to the panel. A base fitting in which the second base fitting rotates preferentially relative to the first base fitting.

2. The base fitting according to claim 1, wherein the second base fitting is rotatable in plane by a second locking fitting having the second mounting shaft.

3. The base fitting according to claim 2, wherein the first locking fitting and / or the second locking fitting is a bolt.

4. The base fitting according to any one of claims 1 to 3, wherein the first mounting shaft and the second mounting shaft are offset in a predetermined radial direction centered on the first or second mounting shaft when they are substantially parallel.

5. The base fitting according to any one of claims 1 to 4, wherein the second base fitting is attached to the panel by the second mounting shaft, at least via the first base fitting.

6. The aforementioned base fitting has, as the second locking fitting, a second bolt provided on the first base fitting and a second nut that screws onto the second bolt, The base fitting according to claim 2 or 3, wherein the second base fitting has a through hole through which the second bolt is inserted, and the second base fitting is attached to the first base fitting by screwing the second bolt and the second nut through the through hole.

7. The aforementioned base fitting has, as the first locking fitting, a first nut embedded in the panel and a first bolt that screws into the first nut. The first base fitting has a through hole through which the first bolt is inserted, and the first base fitting is attached to the panel by screwing the first nut and the first bolt through the through hole, according to any one of claims 2, 3, or 6.

8. A base fitting according to any one of claims 1 to 7, wherein a sliding material is provided between the first base fitting and the second base fitting.

9. The base fitting according to any one of claims 1 to 8, wherein the cross-sectional shape of the first base fitting and / or the second base fitting is L-shaped, I-shaped, U-shaped, or square-shaped.

10. The base fitting according to any one of claims 1 to 9, wherein the first base fitting is attached to one panel at two or more locations substantially parallel to or substantially horizontal to one side of the panel.

11. A finishing material mounting structure to which the finishing material is attached using the base fittings described in any one of claims 1 to 10.

12. A finishing material mounting structure comprising a panel having a locking mechanism, a finishing material attached to the panel, and a base fitting for attaching the finishing material to the panel, The aforementioned base fitting comprises a first base fitting attached to the surface of the panel and a second base fitting to which the finishing material is directly or indirectly attached. The first base fitting is attached to the panel by a first locking fitting having a first mounting shaft to which the first base fitting is attached. The second base fitting is mounted so as to be rotatable with respect to the second mounting shaft to which the second base fitting is attached. If the first mounting shaft and the second mounting shaft are coaxial, their mounting positions are separated in the out-of-plane direction. If they are substantially parallel, the first mounting shaft is offset from the second mounting shaft in the vertical and / or left-right directions so as not to obstruct the rotation of the second base fitting. The degree of fixation of the second base fitting is less than the degree of fixation of the first base fitting to the panel. A finishing material mounting structure in which the second base fitting rotates preferentially relative to the first base fitting.

13. The finishing material mounting structure according to claim 12, wherein the second base fitting is mounted so as to be rotatable in plane by a second locking fitting having the second mounting shaft.

14. The finishing material mounting structure according to claim 13, wherein the first locking fitting and / or the second locking fitting is a bolt.

15. The finishing material mounting structure according to any one of claims 12 to 14, wherein the second mounting shaft is offset in a predetermined radial direction around the first mounting shaft when it is substantially parallel to the first mounting shaft.

16. The finishing material mounting structure according to any one of claims 12 to 15, wherein the second base fitting is attached to the panel by the second mounting shaft, at least via the first base fitting.

17. The finishing material mounting structure according to any one of claims 12 to 16, wherein the second base fitting is mounted so as to be rotatable in plane with the second mounting shaft as the pivot axis, by passing the second mounting shaft through an insertion hole provided in the second base fitting.

18. The aforementioned base fitting includes, as the second locking fitting, a second bolt provided on the first base fitting and a second nut that screws onto the second bolt, The finishing material mounting structure according to claim 13 or 14, wherein the second base fitting has a through hole through which the second bolt is inserted, and the second base fitting is attached to the first base fitting by screwing the second bolt and the second nut through the through hole.

19. The aforementioned base fitting has, as the first locking fitting, a first nut embedded in the panel and a first bolt that screws into the first nut. The finishing material mounting structure according to any one of claims 13, 14, or 18, wherein the first base fitting has an insertion hole through which the first bolt is inserted, and the first base fitting is attached to the panel by screwing the first nut and the first bolt through the insertion hole.

20. A finishing material mounting structure according to any one of claims 12 to 19, wherein a sliding material is provided between the first base fitting and the second base fitting.

21. The finishing material mounting structure according to any one of claims 12 to 20, wherein the cross-sectional shape of the first base fitting and / or the cross-sectional shape of the second base fitting is L-shaped, I-shaped, U-shaped, or square-shaped.

22. The finishing material mounting structure according to any one of claims 12 to 21, wherein the first base fitting is attached to one panel at two or more locations substantially parallel to or substantially horizontal to one side of the panel.

23. A building comprising a finishing material mounting structure according to any one of claims 12 to 22.

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