End part fixing structure of furring strip for wall substrate

Abstract

To provide an end part fixing structure of furring strip for wall substrate which can be fixed more easily without requiring on-site welding and which can prevent the positional deviation of an upper end part and a lower end part of the furring strip.SOLUTION: An end part fixing structure 10 allows end parts 11a, 11b of a metal furring strip 11 which is installed in an upright state via a joint plate 13 mounted on a floor member 12 and which becomes a wall substrate material to be fixed with the lateral position adjusted, and a bolt fastening hole formed at the joint plate 13 serves as a laterally long loose hole 14. A fastening position of a bolt member 15 in the loose hole 14 is adjusted, and in a state where the position of a lower end part 11a or an upper end part 11b of the furring strip 11 is adjusted, a drilling tapping screw 16 is driven toward a lower end part 11a or an upper end part 11b of the furring strip 11 from the joint plate 13 side; thereby, the lower end part 11a or the upper end part 11b of the furring strip 11 is fixed in a state where the position in the lateral direction is adjusted.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an end fixing structure and an end fixing method for a wall underlayment furring strip, and in particular to an end fixing structure and an end fixing method for a wall underlayment furring strip that is installed in an upright position perpendicular to a floor member and that is made of metal and serves as a wall underlayment material, and that allows the end of the furring strip to be fixed with its lateral position adjusted. [Background technology]

[0002] For example, in reinforced concrete and steel reinforced concrete buildings, metal furring strips are commonly used, which are arranged vertically as support members (wall underlayment) when attaching wall materials that form exterior walls and partition walls. Furring strips are thin, band-shaped metal plate members that are bent into a vertical shape to form a so-called sheath shape, and are used as wall underlayment members to which wall materials can be attached on the outer periphery. Despite their thin thickness, their rectangular C-shaped cross section gives them considerable strength and rigidity suitable for supporting wall materials.

[0003] In addition, the furring strips are attached to their designated positions by fixing their upper and lower ends to the floor materials that make up the floor portion of each floor using bolt members via connecting plates.In order to enable the upper and lower ends to be fixed in their designated positions with high precision, horizontal or vertical loose hole holes are provided in the connecting plate and at least one of the upper or lower end of the furring strip, and the upper and lower ends of the furring strip are positioned with high precision by adjusting the position where the bolt members are fastened in the loose hole holes (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-88103 Summary of the Invention [Problem to be solved by the invention]

[0005] On the other hand, if the loose holes are left as they are after the upper and lower ends of the furring strips have been positioned and secured by tightening the bolt members, for example, if the bolt members loosen for some reason after construction and the upper or lower ends of the furring strips become misaligned, it is conceivable that the load on the furring strips will not be transmitted sufficiently to the surrounding beams and columns.In particular, when furring strips are used as wall underlayment for exterior walls, there is a high possibility that the furring strips will move laterally, for example horizontally, and become misaligned when loads caused by earthquakes or wind act on the exterior wall during or after construction.

[0006] For this reason, as a conventional technique, a method has been adopted in which, as shown in Figures 3(a) and (b), a plate piece 52 having a fixing hole 53 is placed on a joining plate 50 having a loose hole 51 formed therein, and a bolt member 54 is inserted into the fixing hole 53 and the plate piece 52 is then welded to the joining plate 50, thereby preventing the bolt member 54 fastened to the fixing hole 53 from moving and preventing the furring strip 55 from shifting position in the lateral (horizontal) direction.

[0007] However, the conventional technology of using plate pieces 52 with fixing holes 53 to prevent bolt members 54 from moving requires the work of welding plate pieces 52 to joining plates 50 on-site, which raises concerns about reduced workability and a decline in the quality of joining plates 50 and furring strips 55 in the welded areas. It is also thought that this will increase costs and affect construction time, including the material costs of plate pieces 52, labor costs for welders, and curing costs associated with welding. Therefore, there is a need for the development of technology that can be positioned and fixed more simply, without the need for on-site welding, and that can effectively prevent the upper and lower ends of furring strips from moving and shifting out of position.

[0008] The present invention aims to provide an end fixing structure for wall underlayment furring strips that can be positioned and fixed more easily without the need for on-site welding, and that can effectively prevent the upper and lower ends of the furring strips from moving and becoming misaligned. [Means for solving the problem]

[0009] The present invention provides an end fixing structure for wall underlayment furring strips that are installed vertically to the floor members via a joining plate attached to the floor members, allowing the ends of metal furring strips that serve as wall underlayment materials to be fixed with their lateral positions adjusted. At least one of the bolt fastening holes formed in the joining plate and the lower or upper end of the furring strip is a horizontally elongated loose hole hole, and the fastening position of the bolt member in the loose hole hole is adjusted so that the lateral position of the lower or upper end of the furring strip is adjusted. At least two drilling and tapping screws are driven from the joining plate side into the area above or below the bolt fastening hole in the joining plate toward the lower or upper end of the furring strip, thereby fixing the lower or upper end of the furring strip with its lateral position adjusted. This achieves the above-mentioned object by providing an end fixing structure for wall underlayment furring strips.

[0010] Furthermore, it is preferable that the end fixing structure of the wall underlayment furring strip of the present invention is such that the joining plate attached to the floor member is a joining plate that is installed vertically from the upper or lower surface of the floor slab.

[0011] In addition, it is preferable that the end fixing structure of the wall underlayment furring strip of the present invention is such that the joining plate attached to the floor member is a joining plate that is arranged vertically and protrudes laterally from the side portion of the floor beam.

[0012] Furthermore, in the end fixing structure of the wall underlayment furring strip of the present invention, it is preferable that the furring strip is a wall underlayment material for an exterior wall that is installed along the outer periphery of a building and supports an exterior wall material.

[0013] Furthermore, the present invention provides a method for fixing the ends of metal furring strips that serve as wall underlayment materials and are installed perpendicular to the floor members via a joining plate attached to the floor member, allowing the ends of the metal furring strips, which serve as wall underlayment materials, to be fixed with their lateral positions adjusted. At least one of the bolt fastening holes formed in the joining plate and the lower or upper end of the furring strip is made into a horizontally elongated loose hole hole, and the fastening position of the bolt member in the loose hole hole is adjusted to adjust the lateral position of the lower or upper end of the furring strip, and the bolt member is fastened to temporarily fix the furring strip. After that, at least two drilling and tapping screws are driven into the area of ​​the joining plate above or below the bolt fastening hole from the joining plate side toward the lower or upper end of the furring strip, thereby fixing the lower or upper end of the furring strip with its lateral position adjusted. This method achieves the above-mentioned object. [Effects of the Invention]

[0014] According to the end fixing structure or end fixing method of the wall underlayment furring strips of the present invention, the upper and lower ends of the furring strips can be positioned and fixed more easily without the need for on-site welding, and can be effectively prevented from moving and becoming misaligned. [Brief explanation of the drawings]

[0015] [Figure 1] 1(a) is a schematic side view illustrating the end fixing structure of a wall base furring strip according to a preferred embodiment of the present invention, and FIG. 1(b) is a schematic cross-sectional view taken along AA in FIG. 1(a). [Figure 2] 10 is a schematic side view illustrating the end fixing structure of a wall base furring strip according to another preferred embodiment of the present invention. FIG. [Figure 3] 1A is a schematic side view illustrating a conventional end fixing structure of a wall base furring strip, and FIG. 1B is a schematic cross-sectional view taken along line BB in FIG. 1A. DETAILED DESCRIPTION OF THE INVENTION

[0016] 1(a) and 1(b), a preferred embodiment of the present invention is a wall underlayment furring strip edge fixing structure 10. It is used as a wall underlayment for exterior walls, supporting exterior wall materials, preferably installed along the perimeter of a building, for example, in a SRC building. It is employed as a structure for precisely positioning and fixing the upper end 11b and lower end 11a of the furring strip 11, to which exterior wall materials (not shown), such as sandwich panels or corrugated steel sheets, are attached, to floor members 12, such as floor slabs 12a and floor beams 12b. The wall underlayment furring strip edge fixing structure 10 of this embodiment has a simpler configuration and does not require on-site welding, and has the function of preventing the upper end 11b and lower end 11a of the furring strip 11 from shifting and becoming misaligned due to some factor after it has been positioned and fixed. In addition, in the end fixing structure 10 of the wall underlayment furring strip of this embodiment, the furring strip 11 is formed using a thin metal plate member with a thickness of, for example, about 2.0 to 6.0 mm, so the joining plate 13 is also formed using a thin metal plate member, and by using a known fixing metal fitting that can penetrate a thin metal plate, preferably a drilling tapping screw 16, it is possible to easily prevent misalignment of the upper end 11b and lower end 11a of the furring strip 11.

[0017] The end fixing structure 10 of the wall underlayment furring strip in this embodiment is, as shown in Figures 1(a) and (b), installed vertically to the floor member 12 via a connecting plate 13 attached to a floor slab 12a, preferably made of concrete, as a floor member 12, and is a fixing structure that allows the ends 11a, 11b of the metal furring strip 11 that serves as the wall underlayment to be fixed in a lateral direction, preferably with their horizontal positions adjusted, and at least one of the bolt fastening holes formed in the connecting plate 13 and the lower end 11a or upper end 11b of the furring strip 11 (in this embodiment, the bolt fastening hole of the connecting plate 13) is a horizontally elongated loose hole hole 14. By adjusting the fastening position of the bolt member 15 in this loose hole hole 14, the horizontal position of the lower end 11a or upper end 11b of the furring strip 11 is preferably adjusted, and at least two drilling tapping screws 16 are driven into the area above or below the bolt fastening hole (loose hole hole) 14 in the joining plate 13 from the joining plate 13 side toward the lower end 11a or upper end 11b of the furring strip 11, so that the lower end 11a or upper end 11b of the furring strip 11 is fixed, preferably with its horizontal position adjusted.

[0018] In addition, in this embodiment, the connecting plate 13 attached to the floor slab 12a, which is preferably made of concrete as the floor member 12, is installed in a state where its base is buried in the concrete that forms the floor slab 12a and it stands vertically from the upper or lower surface of the floor slab 12a.

[0019] In this embodiment, the furring strips 11 can be formed using a well-known metal material with a rectangular C-shaped cross section, known as a "sechan" shape, formed by bending a thin, strip-shaped metal plate member with a thickness of, for example, 2.0 to 6.0 mm. The furring strips 11 are preferably cut vertically to a length corresponding to the floor height and are widely used as wall underlayment. The lower end 11a and upper end 11b of the furring strips 11 are provided with bolt fastening holes. These holes are aligned with loose-hole holes 14 formed in the connecting plate 13, and bolt members 15 are fastened to secure the lower end 11a and upper end 11b to the connecting plate 13 with high precision in the horizontal direction.

[0020] The connecting plate 13 can be formed using a thin metal plate, e.g., 2.0 to 6.0 mm thick, with a width of, e.g., 40 to 120 mm, similar to the width of the furring strips 11, and with a vertically elongated rectangular flat plate shape, e.g., 50 to 120 mm high, so as to stand vertically from the upper or lower surface of the floor slab 12a. In this embodiment, the connecting plate 13 is installed by embedding its base in concrete and standing vertically from the upper or lower surface of the floor slab 12a, as described above. However, it can also be formed with an L-shaped cross section, for example, by attaching a horizontal piece to the upper or lower surface of the floor slab 12a and joining it with insert bolts or the like, so that the vertical piece stands vertically from the upper or lower surface of the floor slab 12a. A horizontally elongated loose hole 14 is formed in the middle of the connecting plate 13, which stands vertically from the upper or lower surface of the floor slab 12a. As described above, by aligning the bolt fastening holes formed in the lower end 11a and upper end 11b of the furring strip 11 with the horizontally elongated loose hole hole 14 and fastening the bolt member 15, the lower end 11a and upper end 11b of the furring strip 11 can be positioned horizontally and fixed to the joining plate 13 while being slightly spaced apart from the upper or lower surface of the floor slab 12a (see Figure 1(b)).

[0021] The drilling tapping screws 16 are known metal fastening screws that can be driven through thin metal plates, and preferably satisfy the mechanical properties specified in JIS B1055, JIS B1059, JIS B1124, etc. The drilling tapping screws 16 can be easily driven from the joining plate 13 side toward the lower end 11a or upper end 11b of the furring strip 11 using a known driving device. It is preferable to pre-drill a screw hole to serve as a driving guide at the driving position of the drilling tapping screws 16 in the joining plate 13.

[0022] To provide the end fixing structure 10 of the wall underlayment furring strip of this embodiment having the above-mentioned configuration, for example, the fastening position of the bolt member 15 in the loose hole hole 14 formed in the joining plate 13 is adjusted to adjust the horizontal position of the lower end 11a or upper end 11b of the furring strip 11, and the bolt member 15 is then fastened to temporarily fix the furring strip 11.Then, at least two (two in this embodiment) drilling tapping screws 16 are driven into the area above or below the loose hole hole 14, which is the bolt fastening hole in the joining plate 13, from the joining plate 13 side toward the lower end 11a or upper end 11b of the furring strip 11, so as to penetrate both the joining plate 13 and the furring strip 11. This makes it possible to adjust the lateral position of the lower end 11a or upper end 11b of the furring strip 11, and to join the joining plate 13 and the lower end 11a or upper end 11b of the furring strip 11 as a single unit, thereby firmly fixing the furring strip 11 to the joining plate 13 while preventing them from shifting position.

[0023] That is, in this embodiment, the end fixing method of the wall base furring strips, which are installed in a state of standing perpendicular to the floor member 12 via the joining plate 13 attached to the floor member 12, and which can fix the ends 11a, 11b of the metal furring strips 11 that serve as wall base materials in a state of adjusting the lateral position, is to fix the end parts 11a, 11b of the metal furring strips 11 in a state of adjusting the lateral position by forming at least one of the bolt fastening holes formed in the joining plate 13 and the lower end part 11a or the upper end part 11b of the furring strips 11 as horizontally elongated loose hole holes 14, and adjusting the fastening position of the bolt member 15 in the loose hole hole 14. By adjusting the bolt members 15, the furring strip 11 is temporarily fixed in place with the lateral position of the lower end 11a or the upper end 11b of the furring strip 11 adjusted, and then at least two drilling tapping screws 16 are driven from the joining plate 13 side toward the lower end 11a or the upper end 11b of the furring strip 11 in the region above or below the bolt fastening holes 14 in the joining plate 13, thereby fixing the lower end 11a or the upper end 11b of the furring strip 11 in the state where the lateral position has been adjusted.

[0024] As a result, according to the end fixing structure 10 or end fixing method of the wall underlayment furring strip of this embodiment, it is possible to more easily position and fix the upper end 11b and lower end 11a of the furring strip 11, and effectively prevent them from moving and becoming misaligned, without the need for on-site welding.

[0025] Figure 2 illustrates a wall underlayment furring strip end fixing structure 10' according to another preferred embodiment of the present invention. In the wall underlayment furring strip end fixing structure 10' according to another embodiment shown in Figure 2, the joining plate 13' attached to the floor member 12 is a joining plate that extends laterally from the side of the floor beam 12b and is installed vertically. The rest of the configuration is the same as the end fixing structure 10 shown in Figures 1(a) and (b) above.

[0026] In the end fixing structure 10' for wall underlayment furring strips of another embodiment shown in Figure 2, the horizontal position of the lower end 11a or upper end 11b of the furring strip 11 is adjusted, and the furring strip 11 is temporarily fixed by tightening the bolt member 15. After that, by driving a drilling tapping screw 16 from the joining plate 13' side toward the lower end 11a or upper end 11b of the furring strip 11, the joining plate 13' and the lower end 11a or upper end 11b of the furring strip 11 are joined together, preventing them from shifting position, and the furring strip 11 can be firmly fixed to the joining plate 13'. At the same time, the bolt member 15 is prevented from shifting position in the loose hole 14, thereby achieving the same effect as the end fixing structure 10 shown in Figures 1(a) and (b) above.

[0027] The present invention is not limited to the above-described embodiments and various modifications are possible. For example, the furring strips whose upper and lower ends are fixed by the end fixing structure of the present invention do not necessarily have to be furring strips that serve as wall base materials for exterior walls, but may also be furring strips that serve as wall base materials for other walls such as partition walls. [Explanation of symbols]

[0028] 10,10' Wall base furring strip end fixing structure 11. Fuselage 11a Lower end 11b Upper end 12 Flooring 12a Floor slab 12b Floor beam 13,13' Joint Plate 14 Loose hole (bolt fastening hole) 15 Bolt material 16 Drilling and tapping screws

Claims

1. A wall underlayment furring strip end fixing structure that is installed in a vertically upright position relative to the floor member through a joining plate attached to the floor member, and that allows the end of a metal furring strip that serves as a wall underlayment material to be fixed in a state where the lateral position is adjusted. At least one of the bolt fastening holes formed in the joining plate and the lower end or upper end of the furring strip is a horizontally elongated loose hole hole, and the fastening position of the bolt member in the loose hole hole is adjusted so that the lateral position of the lower end or upper end of the furring strip is adjusted.At least two drilling tapping screws are driven from the joining plate side toward the lower end or upper end of the furring strip in the area above or below the bolt fastening hole in the joining plate, thereby fixing the lower end or upper end of the furring strip with its lateral position adjusted.

2. 2. The end fixing structure of a wall underlayment furring strip as claimed in claim 1, wherein the connecting plate attached to the floor member is a connecting plate provided vertically upright from the upper or lower surface of the floor slab.

3. 2. The end fixing structure of a wall underlayment furring strip as claimed in claim 1, wherein the connecting plate attached to the floor member is a connecting plate that is provided vertically and extends laterally from the side portion of the floor beam.

4. The end fixing structure of a wall underlayment furring strip described in any one of claims 1 to 3, wherein the furring strip is a wall underlayment material for an exterior wall that supports exterior wall materials and is provided along the outer periphery of a building.

5. A method for fixing the end of a metal furring strip for a wall base, which is installed in a vertically standing state relative to the floor member through a joining plate attached to the floor member, and which can fix the end of the metal furring strip as a wall base material in a state where the lateral position is adjusted. At least one of the bolt fastening holes formed at the lower end or upper end of the joining plate and the furring strip is made into a horizontally elongated loose hole hole, A method for fixing the ends of furring strips for wall underlayment, in which the lateral position of the lower or upper end of the furring strip is adjusted by adjusting the fastening position of the bolt member in the loose hole hole, and the furring strip is temporarily fixed by fastening the bolt member, and then at least two drilling tapping screws are driven from the joining plate side toward the lower or upper end of the furring strip in the area above or below the bolt fastening hole in the joining plate, thereby fixing the lower or upper end of the furring strip in the adjusted lateral position.

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