Mounting Fixture and Mounting Method

Abstract

To provide a metal bracket to which external force is not applied to a siding board when a load object is fitted to an external wall of a building with the siding board adhered.SOLUTION: A metal bracket comprises: a plurality of column-shape spacers 12, 14 having a greater length than a thickness of a siding board and having axes in a length direction parallel to each other; and a base plate 16 for fixing one ends of the plurality of column-shape spacers 12, 14 to set an interval between the length-direction axes, wherein when and after attaching a load object 20 by using a metal bracket 10 provided with through holes 121, 141 penetrating the column-shape spacers 12, 14 and the base plate 16 along the length-direction axes, a force acting on an external wall of a building is supported by the metal bracket 10 so that it is not applied to the siding board.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a mounting bracket and a mounting method for mounting a heavy object on an outer wall of a building to which a siding board is attached.

Background Art

[0002] There are cases where heavy objects such as drying poles, sunshade sheets, and outdoor decorations are attached to the outer wall of a building to which a siding board is attached. These heavy objects are usually attached to the outer wall of the building using a support bracket having a support portion provided with an opening through which a bolt or the like is passed (for example, Non-Patent Document 1).

[0003] However, when attempting to attach such a heavy object to the outer wall of a building to which a siding board is attached, there is a problem that the siding board may be damaged such as cracked by the force applied to the siding board when, for example, tightening a bolt or the like. Also, even after attaching the heavy object, there is a problem that the siding board may be damaged such as cracked by the force applied to the siding board from the heavy object.

[0004] A method of attaching a heavy object to the outer wall of a building before attaching the siding board is known (for example, Patent Document 1). However, when attempting to attach a heavy object to the outer wall of a building to which a siding board is already attached by retrofitting, it is necessary to remove the siding board or cut the siding board significantly, resulting in problems such as an increase in the work period and cost.

Prior Art Documents

Non-Patent Documents

[0005]

Non-Patent Document 1

Patent Document

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] Therefore, an object of the present invention is to provide a mounting bracket and a mounting method that can prevent an external force from being applied to the siding board when a heavy object is attached to the outer wall of a building to which the siding board is attached and after the attachment, and that can be attached to the outer wall to which the siding board is attached with a simple operation.

Means for Solving the Problems

[0008] To achieve the above object, the mounting bracket according to the present invention includes a plurality of columnar spacers having a length greater than the thickness of the siding board and having axes in the length direction parallel to each other, and a base plate that fixes one end of the plurality of columnar spacers and sets the interval between the axes in the length direction. Each of the columnar spacers and the base plate is provided with a through hole that penetrates along the axis in the length direction.

[0009] Further, using the above mounting bracket, the mounting method according to the present invention includes a first step of forming a plurality of holes in the siding board, the holes having a diameter larger than the outer diameter of the columnar spacer and penetrating in the thickness direction of the siding board; a second step of applying a waterproof sealing material around the plurality of holes in the siding board; a third step of inserting the columnar spacer of the mounting bracket into the plurality of holes in the siding board and abutting the end of the columnar spacer against the building frame material; and a fourth step of fixing the heavy object and the mounting bracket to the building frame material through an opening of a heavy object support portion that is part of the heavy object and the through hole of the mounting bracket, in this order.

Effects of the Invention

[0010] When attaching a heavy object to the outer wall of a building to which a siding board is attached by the mounting bracket of the present invention, and after the attachment, it is possible to prevent damage such as cracks from occurring in the siding board.

[0011] By the mounting method of the present invention, a heavy object can be retrofitted to the outer wall of a building to which a siding board is attached without removing or cutting the siding board.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0013] FIG. 1 shows a configuration example of the mounting bracket 10 according to the embodiment. FIG. 1(A) shows a perspective view of the mounting bracket 10 according to the embodiment. FIG. 1(B) shows a side view of the mounting bracket 10 as viewed from the +X direction. FIG. 1(C) shows a side view of the mounting bracket 10 as viewed from the +Y direction. The same parts of the mounting bracket 10 shown in FIGS. 1(A), (B), and (C) are denoted by the same reference numerals.

[0014] The mounting fitting 10 is composed of three parts: a first columnar spacer 12, a second columnar spacer 14, and a base plate 16. The mounting fitting 10 is a metal fitting made of, for example, stainless steel, etc., with the first columnar spacer 12, the second columnar spacer 14, and the base plate 16 being made of metal.

[0015] The first columnar spacer 12 corresponds to a columnar portion extending in the direction of the longitudinal axis L1. The second columnar spacer 14 corresponds to a columnar portion extending in the direction of the longitudinal axis L2. The base plate 16 has a surface orthogonal to the longitudinal axis L1 and the longitudinal axis L2, and is a plate-like portion to which one end in the extending direction of the first columnar spacer 12 and the second columnar spacer 14 is joined on its surface. The base plate 16 sets the longitudinal axis L1 of the first columnar spacer 12 and the longitudinal axis L2 of the second columnar spacer 14 to be substantially parallel to each other by fixing one end of the first columnar spacer 12 and the second columnar spacer 14.

[0016] As shown in Fig. 1(A), the first columnar spacer 12 is joined to the base plate 16 at one end 122 in the direction of the longitudinal axis L1. The second columnar spacer 14 is joined to the base plate 16 at one end 142 in the direction of the longitudinal axis L2. Thus, the base plate 16 sets the distance between the first columnar spacer 12 and the second columnar spacer 14.

[0017] The first columnar spacer 12 and the base plate 16 may be joined by welding. The second columnar spacer 14 and the base plate 16 may be joined by welding. Also, one end 122 of the first columnar spacer 12 and one end 142 of the second columnar spacer 14 may be screwed into screw holes provided in the base plate 16 for joining. Alternatively, one end 122 of the first columnar spacer 12 and one end 142 of the second columnar spacer 14 may be joined by fitting them into holes provided in the base plate 16.

[0018] As shown in FIG. 1(B), the first columnar spacer 12 has an other end 123 on the opposite side of one end 122 in the length direction axis L1 direction, and the distance between the one end 122 and the other end 123 corresponds to the length of the first columnar spacer 12 in the length direction axis L1 direction. The second columnar spacer 14 has an other end 143 on the opposite side of one end 142 of the length direction axis L2, and the distance between the one end 142 and the other end 143 corresponds to the length of the second columnar spacer 14 in the length direction axis L2 direction.

[0019] The first columnar spacer 12 has a through hole 121 along the length direction axis L1 of the first columnar spacer 12. The through hole 121 is a through hole that penetrates the first columnar spacer 12 and the base plate 16 along the length direction axis L1. The second columnar spacer 14 has a through hole 141 along the length direction axis L2 of the second columnar spacer 14. The through hole 141 is a through hole that penetrates the second columnar spacer 14 and the base plate 16 along the length direction axis L2.

[0020] FIG. 1 shows an example in which the first columnar spacer 12 and the second columnar spacer 14 are cylindrical. The through hole 121 penetrates the first columnar spacer 12 and the base plate 16 along the cylindrical central axis of the first columnar spacer 12. The through hole 141 penetrates the second columnar spacer 14 and the base plate 16 along the cylindrical central axis of the second columnar spacer 14.

[0021] The first columnar spacer 12 shown in FIG. 1 is a cylindrical member having an outer diameter of, for example, 15 mm and a length between one end 122 and the other end 123 of, for example, 40 mm. The second columnar spacer 14 is a cylindrical member having an outer diameter of, for example, 15 mm and a length between one end 142 and the other end 143 of, for example, 40 mm. Also, the inner diameters of both the through hole 121 and the through hole 141 are, for example, 10 mm.

[0022] The base plate 16 shown in FIG. 1 is a plate-shaped member with a size of, for example, 150 mm × 30 mm for the surface that fixes the first columnar spacer 12 and the second columnar spacer 14, and a thickness of, for example, 5 mm. The first columnar spacer 12 and the second columnar spacer 14 are fixed perpendicularly to the plate surface of the base plate 16 with a distance between the longitudinal axis L1 and the longitudinal axis L2 of, for example, 110 mm.

[0023] FIG. 2 is a perspective view for explaining the arrangement of members including the mounting bracket 10 according to the embodiment. FIG. 2 is a perspective view for explaining the arrangement of the building skeleton member 50 such as a column, the mounting bracket 10, and the load 20 when the load 20 is attached to the outer wall of a building to which the siding board is attached using the mounting bracket 10. The mounting bracket 10 shown in FIG. 2 is given the same reference numerals as the same parts of the mounting bracket 10 shown in FIG. 1. Also, for the sake of simplicity of the drawing, FIG. 2 does not show the siding board.

[0024] FIG. 2 shows a partial arrangement of the building skeleton member 50, the mounting bracket 10, and the load 20 in a coordinate system with the vertical direction as the Z direction and the horizontal direction as the XY direction. The vertically upward direction corresponds to the +Z direction and the vertically downward direction corresponds to the -Z direction, and the outer surface 51 of the building skeleton member 50 is represented by a plane substantially parallel to the XZ plane.

[0025] The mounting bracket 10 is arranged such that the through hole 121 provided along the longitudinal axis L1 of the first columnar spacer 12 and the through hole 141 provided along the longitudinal axis L2 of the second columnar spacer 14 face in the Y-axis direction perpendicular to the outer surface 51 of the building skeleton member 50.

[0026] The first columnar spacer 12 of the mounting fitting 10 has a length from one end 122 to the other end 123 in the length direction that is greater than the thickness of the siding board attached to the outer wall of the building. The other end 123 in the length direction of the first columnar spacer 12 is arranged to abut against the outer surface 51 of the building frame member 50. The second columnar spacer 14 of the mounting fitting 10 has a length from one end 142 to the other end 143 in the length direction that is greater than the thickness of the siding board attached to the outer wall of the building. The other end 143 in the length direction of the second columnar spacer 14 is arranged to abut against the outer surface 51 of the building frame member 50.

[0027] The siding board (not shown in FIG. 2) is attached along the outer surface 51 of the frame member 50 on the outside (+Y side) of the outer surface 51. The length from one end 122 to the other end 123 of the first columnar spacer 12 is greater than the thickness from the outer surface 51 of the building frame member 50 to the +Y side surface of the siding board, including the gap space required to attach the siding board to the building outer wall. The length from one end 142 to the other end 143 of the second columnar spacer 14 is greater than the thickness from the outer surface 51 of the building frame member 50 to the +Y side surface of the siding board, including the gap space required to attach the siding board to the building outer wall.

[0028] As described above, the siding board is sandwiched and installed between the outer surface 51 of the building frame member 50 and the base plate 16 of the mounting fitting 10 in a state having appropriate gaps on the surface side which is the +Y side and the back side which is the -Y side. The first columnar spacer 12 and the second columnar spacer 14 form a space for installing the siding board without contacting the outer surface 51 of the building frame member 50 or the base plate 16 of the mounting fitting 10.

[0029] In one example, the lengths of the first columnar spacer 12 and the second columnar spacer 14 are, for example, 40 mm, and the thickness from the outer surface 51 of the building skeleton member 50 to the +Y side surface of the siding board, including the gap space for attaching the siding board, is, for example, 37 mm. As a result, the siding board is sandwiched between the outer surface 51 of the building skeleton member 50 and the base plate 16 of the mounting bracket 10 with a gap of approximately 3 mm on the surface side which is the +Y side.

[0030] The lengths of the first columnar spacer 12 and the second columnar spacer 14 may be changed according to the thickness of the siding board. The first columnar spacer 12 and / or the second columnar spacer 14 may have graduations indicating the length of the columnar spacer engraved on a part of the length direction. This graduation may be used to determine the lengths of the first columnar spacer 12 and the second columnar spacer 14 according to the thickness of the siding board.

[0031] The load 20 attached to the outer wall of the building is composed of a support portion 21 and a load body portion 24. The support portion 21 has a plurality of openings for attaching the load 20 to the outer wall of the building. The openings of the support portion 21 are used as holes through which bolts or the like for attaching the load 20 to the outer wall of the building pass. There are various types of loads 20 depending on the application, such as a drying pole and a drying pole support fitting as shown in Non-Patent Document 1, a sunshade sheet and a sunshade sheet mounting support fitting, an outdoor decoration and an outdoor decoration mounting support fitting, etc. Although FIG. 2 does not show the details of the load body portion 24, the load body portion 24 corresponds to a part of these loads 20.

[0032] FIG. 2 shows an example in which two openings 22 and 23 are provided in the support portion 21. The gravity acting on the load 20 generates a load in the vertically downward direction (-Z direction) and a moment about the X axis in the support portion 21 of the load 20. For this reason, the openings 22 and 23 of the support portion 21 are usually used in a state where they are arranged at intervals in a substantially vertical direction.

[0033] According to the openings 22 and 23 provided in the support portion 21 of the load 20, the first columnar spacer 12 and through hole 121 of the mounting bracket 10, the second columnar spacer 14 and through hole 141, etc. are set. That is, the through hole 121 provided along the longitudinal axis L1 of the first columnar spacer 12 is configured to be on the same L1 axis as the opening 22. The through hole 141 provided along the longitudinal axis L2 of the second columnar spacer 14 is configured to be on the same L2 axis as the opening 23. Thereby, the first columnar spacer 12 and through hole 121 of the mounting bracket 10, the second columnar spacer 14 and through hole 141, etc. are also usually arranged at intervals in a substantially vertical direction.

[0034] FIG. 3 is a cross-sectional view showing a state in which a load 20 is attached to the outer wall of a building using the mounting bracket 10 according to the embodiment. FIG. 3 shows the arrangement of a part of the load 20 including the building skeleton member 50 such as a column, the siding board 40, the mounting bracket 10, and the support portion 21 of the load 20 in a state where the load 20 is attached. In the cross-sectional view shown in FIG. 3, the same parts as those shown in FIGS. 1 and 2 are denoted by the same reference numerals, and the same description will not be repeated.

[0035] The cross-sectional view shown in FIG. 3 is a cross-sectional view of a plane parallel to the YZ plane including the longitudinal axis L1 of the first columnar spacer 12 and the longitudinal axis L2 of the second columnar spacer 14 in a coordinate system with the vertical direction as the Z direction and the horizontal direction as the XY direction, and a part of the skeleton member 50, the siding board 40, the mounting bracket 10, and the load 20 is cut out.

[0036] The siding board 40 is a finishing board attached along the outer wall of the building including the outer surface 51 of the skeleton member 50. The siding board 40 includes those made of ceramics, metal, wood, resin, etc. depending on the material. The siding board 40 has a rich design, stable quality, and is lightweight. Also, by using the siding board 40, there are advantages such as shortening the construction period of the outer wall finish. The siding board 40 is used in many buildings as a finishing outer wall material.

[0037] As shown in FIG. 3, the siding board 40 is used by attaching boards 41 and 42 cut according to the size and shape of the outer wall of the building to the outer wall of the building with fasteners 61 or the like. The joint between the board 41 and the board 42 is filled with a waterproof sealing material 62 (referred to as caulking or sealing).

[0038] In the cross-sectional view shown in FIG. 3, a plurality of holes penetrating the siding board 40 in the thickness direction are provided in the portion of the siding board 40 covering the building skeleton member 50 such as a column. These plurality of holes are holes for installing the mounting bracket 10. The plurality of holes in the siding board 40 for installing the mounting bracket 10 each have an inner diameter larger than the outer diameter of the first columnar spacer 12 and the second columnar spacer 14, and are arranged side by side in a substantially vertical direction at a distance corresponding to the distance between the longitudinal axis L1 of the first columnar spacer 12 and the longitudinal axis L2 of the second columnar spacer 14.

[0039] In one example, the outer diameters of the first columnar spacer 12 and the second columnar spacer 14 are, for example, 15 mm, and the inner diameters of the plurality of holes in the siding board 40 are, for example, 20 mm. The plurality of holes in the siding board 40 are arranged side by side in a substantially vertical direction at an interval between central axes of, for example, 110 mm, similar to the first columnar spacer 12 and the second columnar spacer 14.

[0040] The mounting bracket 10 is installed by inserting the first columnar spacer 12 and the second columnar spacer 14 fixed to the base plate 16 into the plurality of holes provided in the siding board 40 from a direction (Y-axis direction) perpendicular to the outer surface 51 of the skeleton member 50. The mounting bracket 10 is installed by inserting until the other end 123 in the longitudinal direction of the first columnar spacer 12 abuts against the outer surface 51 of the skeleton member 50. The mounting bracket 10 is installed by inserting until the other end 143 in the longitudinal direction of the second columnar spacer 14 abuts against the outer surface 51 of the skeleton member 50.

[0041] As described above, the plurality of holes provided in the siding board 40 have an inner diameter larger than the outer diameter of the columnar spacers of the mounting bracket 10. Further, the columnar spacers of the mounting bracket 10 have a length larger than the thickness from the outer surface 51 of the building's skeletal member 50 to the siding board surface, including the gap space for attaching the siding board. Due to these, when the other ends 123 of the first columnar spacers 12 and the other ends 143 of the second columnar spacers 14 of the mounting bracket 10 are inserted until they abut against the outer surface 51 of the skeletal member 50, the first columnar spacers 12 and the second columnar spacers 14 of the mounting bracket 10, and the base plate 16 are in a state of not contacting the siding board 40.

[0042] The fixing bolt 32 fixes the load 20 and the mounting bracket 10 to the building's skeletal member 50 through the opening 22 of the support portion 21 of the load 20 and the through-hole 121 of the mounting bracket 10 with the first columnar spacer 12 of the mounting bracket 10 inserted into the hole of the siding board 40. The fixing bolt 34 fixes the load 20 and the mounting bracket 10 to the building's skeletal member 50 through the opening 23 of the support portion 21 of the load 20 and the through-hole 141 of the mounting bracket 10 with the second columnar spacer 14 of the mounting bracket 10 inserted into the hole of the siding board 40.

[0043] The other ends 123 of the first columnar spacers 12 and the other ends 143 of the second columnar spacers 14 of the mounting bracket 10 abut against the outer surface 51 of the building's skeletal member 50, and the first columnar spacers 12 and the second columnar spacers 14 of the mounting bracket 10, and the base plate 16 are in a state of not contacting the siding board 40. For this reason, even when the fixing bolts 32, 34 are tightened, the siding board 40 does not receive the force from the fixing bolts 32, 34. That is, when attaching the load 20 to the outer wall of the building, no external force from the fixing bolts 32, 34 is applied to the siding board 40.

[0044] After a heavy object 20 is attached to the outer wall of a building, the load and moment caused by the gravity acting on the heavy object 20 are supported by the building's skeletal members 50, the fixing bolts 32 and 34 fixed to the skeletal members 50, the supporting portion 21 of the heavy object 20, and the mounting bracket 10 whose other ends 123 and 143 are abutted against the skeletal members 50. That is, even after the heavy object 20 is attached to the outer wall of the building, no external force from the heavy object 20 is applied to the siding board 40.

[0045] That is, by using the mounting bracket 10 according to the present embodiment, the force applied to the outer wall when attaching the heavy object 20 to the outer wall with the siding board 40 attached, and the force applied from the heavy object 20 to the outer wall after the heavy object 20 is attached, are not transmitted to the siding board 40. These forces can prevent damage such as cracks from occurring in the siding board 40.

[0046] FIG. 3 shows a case where the waterproof sealing material 63 fills the space between the outside of the columnar spacers 12 and 14 of the mounting bracket 10 and the inside of the hole provided in the siding board 40. The waterproof sealing material 63 prevents rainwater and the like from entering the building side through the gap between the columnar spacer and the siding board. Since the waterproof sealing material 63 has elasticity even after solidification, even when filled with the waterproof sealing material 63, the force applied to the outer wall when attaching the heavy object 20, and the force applied to the outer wall after the heavy object 20 is attached, are not directly transmitted to the siding board 40, and damage such as cracks in the siding board 40 can be prevented.

[0047] Still, in connection with this, the through holes 121 and 141 of the mounting brackets 10 into which the fixing bolts 32 and 34 are inserted are sealed with the base plate 16, the support portion 21 of the load 20, the fixing bolts 32 and 34, and the like. Thereby, it is possible to prevent rainwater or the like from entering through the through holes 121 and 141. In order to waterproof more reliably, a waterproof sealing material 63 may be applied to the gap between the base plate 16 and the siding board 40, the contact portion between the base plate 16 and the support portion 21 of the load 20, the contact portion between the support portion 21 of the load 20 and the fixing bolt head, and the like.

[0048] FIG. 4 is a flowchart showing the steps of a method for attaching a load 20 to the outer wall of a building using the mounting bracket 10 according to the embodiment. The steps shown in FIG. 4 are steps for attaching the load 20 retroactively to the outer wall of a building where the siding board is already attached.

[0049] First, a plurality of holes penetrating the siding board 40 in the thickness direction are formed in the siding board 40 covering the building frame member 50 (step 202). The holes penetrating the siding board 40 can be easily formed by an appropriate tool such as an electric drill. The diameter of each hole is, for example, 20 mm. The positions of the holes to be formed are positions corresponding to the frame member 50 and are determined according to the intervals of the openings through which fixing bolts or the like provided in the support portion 21 of the load 20 pass.

[0050] A waterproof sealing material 63 is applied around the entrance of the hole formed in the siding board 40 (step 204). The waterproof sealing material 63 has sufficient plasticity during application, and the waterproof sealing material 63 is applied around the entrance of the hole from the outside (+Y side, see FIG. 3) of the hole formed in the siding board 40.

[0051] Insert the column spacers 12, 14 of the mounting fitting 10 into the holes of the siding board 40, and abut the other ends 123, 143 of the column spacers against the outer surface 51 of the skeletal member 50 (step 206). Insert the first column spacer 12 and the second column spacer 14 of the mounting fitting 10 into the holes made in the siding board 40 along the longitudinal axis L1 and the longitudinal axis L2. The waterproof sealant 63 applied around the entrance of the hole spreads to fill the space between the outside of the column spacers 12, 14 and the inside of the hole made in the siding board 40. The column spacers 12, 14 are inserted until the other ends 123, 143 in their respective longitudinal directions abut against the outer surface 51 of the skeletal member 50.

[0052] Fix the support portion 21 of the load 20 to the skeletal member 50 together with the mounting fitting 10 by fixing bolts (step 208). The openings 22, 23 of the support portion 21 of the load 20 are respectively on the same axes L1, L2 as the through holes 121, 141 of the mounting fitting 10, and the fixing bolts 32, 34 can pass through. Thereby, the fixing bolts 32, 34 fix the load 20 to the skeletal member 50 together with the mounting fitting 10.

[0053] According to the mounting method shown in FIG. 4, even when the siding board is already attached to the outer wall of the building, the load 20 can be retrofitted. The work on the siding board 40 is, for example, just to make a plurality of holes with a diameter of 20 mm and apply a waterproof sealant. There is no need to remove the siding board or cut a large area of the board. The mounting method shown in FIG. 4 contributes to reducing the construction period and cost of the work of attaching the load 20 to the outer wall of the building with the siding board attached. (Modification example)

[0054] FIG. 5 is a perspective view showing a modification example of the mounting fitting 10. FIG. 5(A) is an example having four column spacers, and FIGS. 5(B), (C) are examples having column spacers that are not cylindrical.

[0055] The heavy object 20 attached to the outer wall of the building may have two or more openings in the support portion 21. The columnar spacers and through holes of the mounting bracket 10 may be set according to the number and arrangement of the openings provided in the support portion 21 of the heavy object 20.

[0056] FIG. 5(A) shows an example in which the mounting bracket 10 is composed of four columnar spacers 152, 154, 156, 158 and a base plate 16. The columnar spacers 152, 154, 156, 158 have lengths greater than the thickness of the siding board, and the axes in the length direction are parallel to each other. Further, the mounting bracket 10 shown in FIG. 5(A) has through holes penetrating each columnar spacer and the base plate 16, and the columnar spacers 152, 154, 156, 158 and the respective through holes are on the same axis as the four openings provided in the support portion 21 of the heavy object 20.

[0057] The mounting bracket 10 shown in FIG. 5(A) can fix the heavy object 20 to the skeletal material 50 in a state where the mounting bracket 10 does not contact the siding board 40 by making four holes in the siding board 40 and inserting the columnar spacers until they abut against the skeletal material 50.

[0058] FIG. 5(B) shows a case where the mounting bracket 10 is composed of prismatic spacers 162, 164 and a base plate 16. FIG. 5(C) shows a case where the mounting bracket 10 is composed of columnar spacers 172, 174 having a gutter-shaped cross section and a base plate 16. The prismatic spacers 162, 164 and the columnar spacers 172, 174 shown in FIGS. 5(B) and 5(C) each have a length greater than the thickness of the siding board, and the axes in the length direction are parallel to each other. Further, the mounting brackets 10 shown in FIGS. 5(B) and 5(C) have through holes penetrating each columnar spacer and the base plate 16, and the prismatic spacers 162, 164 and the columnar spacers 172, 174, and the respective through holes are on the same axis as the openings provided in the support portion 21 of the heavy object 20.

[0059] The mounting bracket 10 shown in FIGS. 5(B) and 5(C) can fix the load 20 to the framework 50 in a state where the mounting bracket 10 does not contact the siding board 40 by making two holes of appropriate sizes in the siding board 40 and inserting the columnar spacers until they abut against the framework 50.

[0060] As described above, the mounting bracket for a load on the siding outer wall and the mounting method of the present invention have been described by way of embodiments and modifications thereof. The present invention is not limited to the described embodiments and modifications, and various modifications can be made within the scope described in each claim. Forms with such modifications are also included in the scope of rights of the present invention.

Explanation of Reference Numerals

[0061] 10... Mounting bracket, 12... First columnar spacer, 121... Through hole, 122... One end, 123... The other end, 14... Second columnar spacer, 141... Through hole, 142... One end, 143... The other end, 16... Base plate, 20... Load, 21... Support portion, 22, 23... Openings, 24... Load body portion, 32, 34... Fixing bolts, 40... Siding board, 41, 42... Boards, 50... Framework, 51... Outer surface, 61... Fastener, 62, 63... Waterproof sealant, 152, 154, 156, 158, 162, 164, 172, 174... Columnar spacers, L1, L2... Length direction axes

Claims

1. An attachment fitting for attaching a heavy object to the outer wall of a building to which a siding board is attached, comprising: a plurality of columnar spacers having a length greater than the thickness of the siding board and having axes in the length direction parallel to each other; a base plate for fixing one end of the plurality of columnar spacers and setting the interval between the axes in the length direction; an attachment fitting in which each of the columnar spacers and the base plate are provided with through holes penetrating along the axis in the length direction.

2. An attachment method for attaching a heavy object to the outer wall of a building to which a siding board is attached, using an attachment fitting comprising a plurality of columnar spacers having a length greater than the thickness of the siding board and a base plate for determining the arrangement of the plurality of columnar spacers, and provided with a plurality of through holes penetrating the columnar spacers and the base plate, the method comprising: a first step of forming a plurality of holes in the siding board, the holes having a diameter larger than the outer diameter of the columnar spacers and penetrating in the thickness direction of the siding board; a second step of applying a waterproof sealant around the plurality of holes in the siding board; a third step of inserting the columnar spacers into the plurality of holes in the siding board and abutting the ends of the columnar spacers against the building skeleton; a fourth step of fixing the heavy object and the attachment fitting to the building skeleton through an opening of a heavy object support portion which is part of the heavy object and through the through hole of the attachment fitting. The attachment method comprising the above steps.

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