Suspension support device and its mounting method

Abstract

To provide a suspension support device with a simple structure and high degree of flexibility in placement. [Solution] A suspension support (1) that sandwiches a floor material (S) having an opening (S) by a first jig (11) positioned on the upper surface of the floor material and a second jig (12) positioned on the lower surface of the floor material, wherein the first jig has a first support portion (111) that abuts against the upper surface of the floor material and a first connecting portion (112) that is connected to the first support portion and extends downward through the opening, and the second jig has a second support portion (121) that abuts against the lower surface of the floor material, a second connecting portion (122) to which the first connecting portion is connected and a mounting portion (123) to which suspension components can be attached.

Description

Technical Field

[0001] The present invention relates to a hanging support and a method for attaching the same.

Background Art

[0002] In a building such as a factory, a floor material having high rigidity and a large number of openings (for example, expanded metal) is generally used as a passage plate for an operator to walk at a position above the floor surface, or as a plate for installing a machine such as an air conditioner.

[0003] By the way, when electrical work or the like is carried out in the above building, it is common practice to install piping along the back side of the passage plate. As a method of installing piping, for example, a hanging bracket is fixed to the flange portion of the frame portion (C-shaped cross section) of the expanded metal, and a piping support member is attached to the hanging bracket via a hanging component (for example, a hanging bolt), and the piping is placed on the upper surface of the piping support member. Patent Document 1 (Japanese Patent Application Laid-Open No. 2021-139398) discloses a fixing bracket fixed to the flange portion of a steel section, and piping or the like is supported by a hanging component and a support member attached to the fixing bracket.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] As described above, the disadvantages of attaching fixing brackets to the flange portion will be briefly explained using Figure 4. Figure 4(A) is a schematic plan view showing a conventional example of a piping arrangement structure, and Figure 4(B) is a partial cross-sectional view along the IVB-IVB line in Figure 4(A). In Figure 4 and other figures, the longitudinal direction of the floor material S is indicated by the symbol X, the width direction by the symbol Y, and the vertical direction by the symbol Z.

[0006] A pipe P extending in the longitudinal direction is provided on the underside (bottom) of a flooring material (e.g., expanded metal) S that has numerous openings Sh. The top side of the flooring material S is the surface where people walk and where machinery such as air conditioners are installed.

[0007] As shown in Figure 4(B), a pair of hanging brackets 10, spaced apart in the width direction, are fixed to the lower flange portion of the frame Sf (C-shaped steel) of the floor material S. The upper part of a hanging component (hanging bolt) 30 is screwed through each hanging bracket 10, and the lower parts of the pair of hanging bolts 30 are connected to the support member 40 that supports the piping P. The piping P is fixed to the support member 40 by a fastener F.

[0008] Since the hanging brackets 10 are fixed to both ends in the width direction of the flooring material S, and the support members 40 are placed in the width direction of the flooring material S, even if the number of pipes P is small, support members 40 are required that extend across the entire width of the flooring material S, resulting in wasted material. In addition, it is time-consuming to attach the hanging brackets 10 to the frame Sf. There is also a method of attaching cantilevered support members to the frame Sf, but the number of pipes P that can be arranged along the frame Sf is not large.

[0009] The present invention was made to solve the above-mentioned problems, and its objective is to provide a suspension support device with a simple structure and a high degree of freedom in placement. [Means for solving the problem]

[0010] The suspension support according to the present invention is a suspension support that, in a certain aspect, sandwiches a floor material between a first jig positioned on the upper surface of the floor material having an opening and a second jig positioned on the lower surface of the floor material, wherein the first jig has a first support portion that abuts against the upper surface of the floor material and a first connecting portion that is connected to the first support portion and extends downward through the opening, and the second jig has a second support portion that abuts against the lower surface of the floor material, a second connecting portion to which the first connecting portion is connected and a mounting portion to which suspension components can be attached.

[0011] Preferably, the first connection part is a male thread, and the second connection part is a female thread.

[0012] Preferably, the second connecting portion extends downward, with the upper region of the second connecting portion receiving the first connecting portion and the lower region of the second connecting portion forming the mounting portion.

[0013] Preferably, the first support portion has a claw portion on its lower surface that contacts the inner wall surface of the opening.

[0014] Preferably, the first connecting portion is formed in a flat plate shape, and its thickness is 1.5 mm to 3 mm.

[0015] Preferably, the flooring material is made of expanded metal.

[0016] The method for attaching a suspension support according to the present invention comprises the steps of: placing a first jig on a floor material having an opening in a certain aspect; and placing a second jig having a mounting portion on its lower surface to which suspension components can be attached, from below the floor material, and joining the first jig and the second jig through the opening to sandwich the floor material. [Effects of the Invention]

[0017] According to the present invention, a suspension support device with a simple structure and high degree of freedom in placement can be provided. [Brief explanation of the drawing]

[0018] [Figure 1](A) is a plan view schematically showing a state in which a suspension support is attached to a floor material according to an embodiment of the present invention, and (B) is a schematic partial cross-sectional view taken along line IB-IB of FIG. 1(A). [Figure 2] It is a partial cross-sectional view schematically showing a disassembled suspension support according to an embodiment. [Figure 3] It is a partial cross-sectional view schematically showing a state of attaching a suspension part to the suspension support according to an embodiment. [Figure 4] (A) is a plan view schematically showing an example of a method of attaching a conventional suspension fitting, and (B) is a schematic partial cross-sectional view taken along line IVB-IVB of FIG. 4(A).

Embodiments for Carrying out the Invention

[0019] Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and their descriptions will not be repeated.

[0020] (Regarding the attachment state) Embodiments of the present invention will be described with reference to FIGS. 1 to 3. FIG. 1(A) is a plan view showing a state in which a suspension support 1 according to an embodiment is attached to a floor material S. The floor material S is, for example, expanded metal, and the length dimension of one sheet is about 900 to 1500 mm, and the width dimension is about 1800 to 3000 mm. Expanded metal refers to a plate material processed to have a diamond-shaped or tortoise-shell-shaped mesh by making zigzag cuts in a single metal material and stretching it. For ease of understanding the invention, the openings (meshes) Sh and the suspension support 1 are shown exaggeratedly. Examples of the dimensions of the suspension support 1 will be described later.

[0021] As shown in Fig. 1(B), the suspension support 1 has a first jig 11 disposed on the upper surface Sa side of the floor material S having an opening Sh, and a second jig 12 disposed on the lower surface Sb side of the floor material S. The floor material S is sandwiched from both the upper and lower sides by the first and second jigs 11 and 12. A suspension bolt (an example of a suspension component) 3 is attached to the lower part of the second jig 12, and a support plate material 4 is connected to the lower part of the suspension bolt 3. A pipe P is placed on the upper surface of the support plate material 4. The pipe P is fixed to the support plate material 4 via a fixture F. Note that a plurality of pipes P may be arranged in the width direction.

[0022] (Regarding the structure) Referring to Fig. 2, the structure of the suspension support 1 will be described. The first jig 11 of the suspension support 1 is formed in a substantially T shape in side view, and has a first support portion 111 and a first connection portion 112 that is integrally formed with the first support portion 111 and extends downward.

[0023] The first support portion 111 is formed in a flat plate shape, and its thickness dimension T1 is, for example, 1.5 mm to 3 mm. Also, the first support portion 111 is formed, for example, in a circular shape, and its diameter D1 is, for example, 40 to 80 mm. The first support portion 111 includes a front surface 111a and a back surface 111b, and as will be described later, the back surface 111b abuts against the upper surface Sa of the floor material S.

[0024] The first connection portion 112 extends downward from the central portion of the back surface 111b. When attaching the first jig 11 to the floor material S, the first connection portion 112 passes through the opening Sh of the floor material S. The first connection portion 112 is formed in a male screw shape. The first jig 11 may be formed by fixing (welding) a slitting bolt as the first connection portion 112 to the first support portion 111. Note that the material of the first jig 11 is not particularly limited, and may be, for example, iron, stainless steel, aluminum, resin, rubber, etc.

[0025] The second jig 12 of the suspension support 1 is formed in a substantially T shape in side view, and has a second support portion 121 and a second connection portion 122 that is integrally continuous with the second support portion 121 and extends downward.

[0026] The second support portion 121 is formed in a flat plate shape, and its thickness dimension T2 is, for example, 1.5 mm to 3 mm. Alternatively, the second support portion 121 may be formed in a circular shape, and its diameter D2 is, for example, 40 to 80 mm. The second support portion 121 includes a surface 121a and a back surface 121b, and as will be described later, the surface 121a abuts against the lower surface Sb of the flooring material S.

[0027] A second connecting portion 122 extends downward from the center of the back surface 121b. The second connecting portion 122 is formed in the shape of an internal thread. In this embodiment, the second jig 12 is formed by fixing (welding) a long nut as the second connecting portion 122 to the second support portion 121. The material of the second jig 12 is not particularly limited and may be, for example, iron, stainless steel, aluminum, resin, or rubber.

[0028] The vertical length of the second connecting portion 122 is greater than the vertical length of the first connecting portion 112. For example, the vertical length of the first connecting portion 112 is 30 to 50 mm, and the vertical length of the second connecting portion 122 is 40 to 60 mm. As will be described later, a mounting portion 123 to which a suspension component can be attached is formed at the lower part of the second connecting portion 122.

[0029] (Regarding installation) Referring to Figure 3, the state of attachment of the suspension support 1 to the floor material S and the method of attaching the suspension bolt 3 to the suspension support 1 will be explained.

[0030] To attach the suspension support 1 to the flooring material S, first, the first jig 11 is positioned on the upper surface Sa side of the flooring material S such that the first connecting portion 112 of the first jig 11 passes through the opening Sh in the flooring material S and the first support portion 111 abuts against the upper surface Sa of the flooring material S. Next, the second jig 12 is positioned on the lower side of the flooring material S, and is attached so that the second connecting portion 122 of the second jig 12 and the first connecting portion 112 of the first jig 11 are joined (screwed together).

[0031] The second jig 12 is rotated and raised, and as shown in Figure 3, the flooring material S is sandwiched from above and below by the first support part 111 (back surface 111b) and the second support part 121 (front surface 121a). From the viewpoint of stability, it is desirable that the first support part 111 and the second support part 121 are sandwiched so that they are supported at three points by the three bonded parts S1 of the flooring material S.

[0032] The first support portion 111 may have a claw portion 11a on its back surface 111b that abuts against the inner wall surface of the opening Sh. Preferably, the claw portion 11a is located between a pair of strand portions S2, S2 near the bond portion S1 of the flooring material S. The claw portion 11a functions as a rotation stopper for the first connection portion 112 when the second connection portion 122 is installed, and after installation, it functions as a loosening stopper between the first connection portion 112 and the second connection portion 122. The claw portion may also be provided on the surface 121a of the second support portion 121.

[0033] With the flooring material S sandwiched between the first and second jigs 11 and 12, the first connecting portion 112 is received in the upper region α1 of the second connecting portion 122. The second connecting portion 122 is longer vertically than the first connecting portion 112, and because it sandwiches the flooring material S, a non-fastened portion is created in the lower region α2 of the second connecting portion 122 that is not fastened with the first connecting portion 112. The suspension bolt 3 is screwed into this non-fastened portion from below. That is, the non-fastened portion constitutes a mounting portion 123 to which the suspension bolt 3 can be attached. In this embodiment, the first connecting portion 112 and the suspension bolt 3 are screwed into the second connecting portion 122 (common female thread) and are arranged on the same axis. A nut N (Figure 1(B)) may be fastened so as to abut against the lower end surface of the second connecting portion 122. In addition to the suspension bolt 3, other components such as hook bolts may be used as suspension components.

[0034] (Regarding the advantages) According to the embodiment of the suspension support 1, since it is attached to the opening (mesh) of the floor material (expanded metal) S, it offers a high degree of freedom in placement, and a support material of a width suitable for the number of pipes P can be suspended. Furthermore, because it has a simple structure in which the floor material S is sandwiched between the first and second jigs 11 and 12, it is easy to install and the construction speed can be significantly reduced. In addition, since the first support part 111 is formed in a thin, flat shape, there is little risk of tripping when a person walks on the floor material S.

[0035] Although embodiments of this invention have been described above with reference to the drawings, this invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiments within the same scope as this invention, or within the equivalent scope.

[0036] For example, the floorboard with openings is not limited to a mesh-like floorboard, but may also be a floorboard with small holes scattered throughout. Also, the first support portion 111 and the second support portion 121 may each be polygonal in shape, rather than circular.

[0037] Furthermore, the first connecting portion 112 may have a female thread and the second connecting portion 122 may have a male thread. In this case, a mounting portion may be provided on the back surface 121b of the second support portion 121. Also, in this embodiment, a mounting portion 123 is formed in the lower region α2 of the second connecting portion 122, but instead, a mounting portion may be provided on the back surface 121b of the second support portion 121 at a position radially different from the second connecting portion 122. In addition, the connection of the first and second jigs 11 and 12 may be made by means other than screws, for example, by crimping.

[0038] Furthermore, the second support portion 121 and the second connecting portion 122 may be separate members that are not fixed to each other. In this case, the suspension support device 1 is installed by sandwiching the floor material S between the first support portion 111 and the second support portion 121, and then fastening the first connecting portion 112 and the second connecting portion 122. [Explanation of Symbols]

[0039] 1 Suspension support, 11 First jig, 111 First support part, 112 First connection part, 11 Claw part, 12 Second jig, 121 Second support part, 122 Second connection part, 123 Mounting part, 3 Suspension parts, S Floor plate

Claims

1. A suspension support device that sandwiches a flooring material between a first jig positioned on the upper surface of the flooring material having an opening and a second jig positioned on the lower surface of the flooring material, The first jig has a first support portion that contacts the upper surface of the flooring material, and a first connecting portion that is connected to the first support portion and extends downward through the opening, The second jig is a suspension support having a second support portion that contacts the lower surface of the floor material, a second connecting portion to which the first connecting portion is connected, and a mounting portion to which suspension components can be attached.

2. The suspension support according to claim 1, wherein the first connecting portion is a male thread and the second connecting portion is a female thread.

3. The suspension support according to claim 2, wherein the second connecting portion extends downward, the upper region of the second connecting portion receives the first connecting portion, and the lower region of the second connecting portion constitutes the mounting portion.

4. The suspension support according to any one of claims 1 to 3, wherein the first support portion has a claw portion on its lower surface that contacts the inner wall surface of the opening.

5. The suspension support according to any one of claims 1 to 3, wherein the first support portion is formed in a flat plate shape and has a thickness of 1.5 mm to 3 mm.

6. The flooring material is made of expanded metal, as described in any one of claims 1 to 3.

7. A step of placing the first jig on a floor material having an opening, A method for installing a suspension support, comprising the steps of: positioning a second jig having a mounting portion on its lower surface to which suspension components can be attached from below the floor material; joining the first jig and the second jig through the opening to sandwich the floor material.

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