Hanging bolt support

Abstract

To provide a hanging bolt support which can be easily produced by bending one metal plate and has sufficient strength.SOLUTION: A hanging bolt support 1 includes an upper metal fitting 2 and a lower metal fitting 3. The upper metal fitting 2 comprises first and second horizontal support parts 4, 5 which receive a support member S; and a vertical support part 6 connecting the first and second horizontal support parts 4, 5. The support member S is sandwiched between a tip of a fastening bolt 7 which is threadedly engaged with the second horizontal support part 5 and the horizontal support part 4, 5. The lower metal fitting 3 is pivotally supported by a pivot bolt 8 which penetrates through the horizontal support part 4, 5 at the lower side. The upper metal fitting 2 is formed by bending one whole metal plate. The first horizontal support part 4 is formed so as to have a substantially C shaped cross section and opening between vertical plate parts 41 is prevented with a bolt 9. The second horizontal support part 5 is formed into a rectangular cylindrical shape and the fastening bolt 7 is threadedly engaged with the horizontal plate part 52. The vertical support part 6 connects the first and second horizontal support parts 4, 5 with a vertical plate part 61.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a metal fitting for supporting a suspension bolt for suspending a ceiling material or the like from the framework of a building below a structural material such as an H-shaped steel material. [Background technology]

[0002] Conventionally, for example, a suspension bolt support described in Patent Document 1 is known. This support includes an upper fitting and a lower fitting pivotally supported at its lower part, and the upper end of the suspension bolt is supported by the lower fitting. The upper fitting has two horizontal support parts extending parallel to each other and a vertical support part connecting the base ends of both horizontal support parts, and is roughly U-shaped. The upper fitting has two horizontal support parts arranged vertically, receives a support member such as an H-shaped steel material between the two horizontal support parts, and engages with the support member so that the mounting orientation can be selected from the upper and lower directions. A tightening bolt is screwed in so as to penetrate vertically through one of the horizontal support parts. The tightening bolt is brought into contact with the lower or upper surface of the support member according to the vertical mounting orientation of the upper fitting, thereby sandwiching the support member vertically between the other horizontal support part. According to the vertical mounting orientation of the upper fitting to the support member, a pivot bolt is attached so as to penetrate horizontally one of the horizontal support parts arranged below, and the lower fitting is pivoted on it. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2009-236124 A Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned conventional hanging bolt support is provided with four reinforcing parts on the upper metal fitting, which allows the use of thin materials and reduces costs. SUMMARY OF THE PRESENT EMBODIMENTS Accordingly, an object of the present invention is to provide a suspension bolt support having a structure different from that of the above-mentioned conventional suspension bolt supports and having sufficient strength without the addition of a reinforcing portion. [Means for solving the problem]

[0005] In the following description, reference will be made to the figures of the accompanying drawings, in which: FIG. The suspension bolt support 1 of the present invention for solving the above problems comprises an upper fitting 2 and a lower fitting 3 pivotally supported at its lower part, and a suspension bolt B is supported by the lower fitting 3. The upper fitting 2 comprises first and second horizontal support parts 4, 5 extending parallel to each other, and a vertical support part 6 connecting the base ends of the horizontal support parts 4, 5. The upper fitting 2 has the first and second horizontal support parts 4, 5 arranged vertically, receives a support member S between the horizontal support parts 4, 5, and engages with the support member S so that the upper or lower mounting orientation with respect to the support member S can be selected. A tightening bolt 7 is screwed in so as to penetrate vertically through the second horizontal support part 5. The tightening bolt 7 vertically clamps the support member S between the other horizontal support part 4, 5 by abutting the tip of the tightening bolt 7 against the lower or upper surface of the support member S according to the vertical mounting orientation of the upper fitting 2. According to the vertical installation orientation of the upper fitting 2, a pivot bolt 8 is installed so as to penetrate horizontally one of the horizontal support parts 4, 5 arranged below. The lower fitting 3 is pivoted to one of the horizontal support parts 4, 5 by this pivot bolt 8. The upper fitting 2 is formed by bending an entire single metal plate. The first horizontal support part 4 is composed of a pair of parallel vertical plate parts 41 and a horizontal plate part 42 consisting of two folded pieces 42a, 42b folded at a right angle along the outer edges of the pair of vertical plate parts 41 and overlapped, and has a generally U-shaped cross section that opens towards the second horizontal support part 5. The pair of vertical plate parts 41 are prevented from opening by an opening prevention bolt 9 that penetrates horizontally therethrough. The second horizontal support portion 5 is formed in a rectangular tube shape by a pair of parallel vertical plate portions 51, an outer horizontal plate portion 52 connecting the outer sides of the pair of vertical plate portions 51 at right angles, and an inner horizontal plate portion 53 consisting of two folded pieces 53a, 53b folded at right angles along the inner sides of the pair of vertical plate portions 51 and overlapped. A screw hole 52a is formed in the outer horizontal plate portion 52 to screw in the fastening bolt 3, and a bolt hole 53c is formed in the inner horizontal plate portion 53 facing the screw hole 52a to insert the fastening bolt 3. The vertical support portion 6 includes a pair of parallel vertical plate portions 61 continuing to the pair of vertical plate portions 41, 51 of the first and second horizontal support portions 4, 5, and a back plate portion 62 consisting of two folded pieces 62a, 62b folded at right angles along the outer vertical sides of the pair of vertical plate portions 61 and butted against each other. Effect of the Invention

[0006] According to the present invention, a suspension bolt support having sufficient strength can be provided without the need for additional reinforcing processing such as a bulge formed by press processing. [Brief description of the drawings]

[0007] [Figure 1] FIG. 2 is a perspective view of the suspension bolt support of the present invention. [Diagram 2] FIG. 2 is an exploded perspective view of the suspension bolt support of FIG. 1. [Diagram 3] FIG. 2 is a front view of the suspension bolt support of FIG. [Figure 4] FIG. 2 is a side view of the suspension bolt support of FIG. 1. [Diagram 5] FIG. 2 is a rear view of the suspension bolt support of FIG. 1. [Figure 6] 2 is a side view showing a different mode of use of the suspension bolt support of FIG. 1. [Figure 7] FIG. 11 is a perspective view showing another embodiment of the suspension bolt support of the present invention. [Figure 8] FIG. 8 is a side view of the suspension bolt support of FIG. 7. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] An embodiment of the present invention will be described with reference to the drawings. The suspension bolt support 1 comprises an upper fitting 2 and a lower fitting 3 pivotally supported at its lower part, and the upper part of a suspension bolt B is supported by the lower fitting 3.

[0009] The upper fitting 2 comprises first and second horizontal support portions 4, 5 extending parallel to each other, and a vertical support portion 6 connecting the base ends of the horizontal support portions 4, 5, and is formed entirely by bending a single metal plate.

[0010] The upper fitting 2 has first and second horizontal support parts 4, 5 disposed one above the other, receives a support member S between them, and engages with the support member S so that either the upper or lower mounting orientation relative to the support member S can be selected, as shown in FIG.

[0011] A tightening bolt 7 is screwed in so as to penetrate vertically through the second horizontal support part 5. The tightening bolt 7 vertically clamps the support member S between the other horizontal support part 4, 5 by abutting its tip against the underside (FIG. 6(A)) or the top side (FIG. 6(B)) of the support member S depending on the vertical installation orientation of the upper fitting 2.

[0012] In accordance with the vertical installation orientation of upper fitting 2, pivot bolt 8 is installed so as to horizontally penetrate one of the horizontal support parts (horizontal support part 5 in 6(A) and horizontal support part 4 in FIG. 6(B)) located on the lower side. Lower fitting 3 is pivotally supported to one of the horizontal support parts 4, 5 by this pivot bolt 8.

[0013] The first horizontal support part 4 is composed of a pair of parallel vertical plate parts 41 and a horizontal plate part 42 consisting of two folded pieces 42a, 42b folded at right angles along the outer sides of the pair of vertical plate parts 41 and overlapped, and has a generally U-shaped cross section that opens towards the second horizontal support part 5. The pair of vertical plate parts 41 are prevented from opening by an opening prevention bolt 9 that passes horizontally through them.

[0014] The first horizontal support part 4 has a horizontal plate part 42 with double bent pieces 42a, 42b at the top and bottom, which enhances its strength against vertical loads. When the first horizontal support part 4 receives a vertical load, it receives a force in a direction that causes the pair of vertical plate parts 41 to open, but this force is countered by the opening prevention bolt 9. Therefore, the first horizontal support part 4 has high strength due to the cooperation of the double bent pieces 42a, 42b at the top and bottom and the opening prevention bolt 9.

[0015] The second horizontal support portion 5 is formed into a rectangular tube shape by a pair of parallel vertical plate portions 51, an outer horizontal plate portion 52 connecting the outer sides of the pair of vertical plate portions 51 at right angles, and an inner horizontal plate portion 53 consisting of two folded pieces 53a, 53b folded at right angles along the inner sides of the pair of vertical plate portions 51 and stacked on top of each other.

[0016] The outer horizontal plate portion 52 is formed with a screw hole 52a into which the fastening bolt 8 is screwed. The inner horizontal plate portion 53 is formed with a bolt hole 53c facing the screw hole 52a, through which the fastening bolt 7 is inserted.

[0017] The vertical support portion 6 comprises a pair of parallel vertical plate portions 61 continuous with the pair of vertical plate portions 41, 51 of the first and second horizontal support portions 4, 5, and a back plate portion 62 consisting of two folded pieces 62a, 62b bent at right angles along the outer vertical edges of the pair of vertical plate portions 61 and butting their edges together.

[0018] One of the bent pieces 62a constituting the back plate portion 62 is formed with a vertically long hole 62c.

[0019] As shown in FIG. 8, when the suspension bolt support 1 is hooked to one side of the lower flange of a support member S made of H-shaped steel, a hook bolt 10 is attached to resist lateral shaking due to earthquakes or the like.

[0020] The hook bolt 10 is inserted through the long hole 61c in the back plate portion 62 and extends along the underside of the lower flange, with the hook portion 10a at the tip end engaging the other side edge of the lower flange of the support member S and the base end being fastened and fixed to the lower flange of the support member S with a nut 11. Even if the suspension bolt support 1 is installed upside down or if the size of the H-shaped steel material that is the support member S is different, the hook bolt 10 can be adapted by adjusting the fixed position in the longitudinal and vertical directions. [Explanation of symbols]

[0021] 1 Hanging bolt support 2 Upper bracket 3 Lower bracket 4 First horizontal support 41 Vertical plate section 42 Horizontal plate section 42a bent piece 42b bent piece 5 Second horizontal support 51 Vertical plate part 52 Outer horizontal plate section 53 Inner horizontal plate part 53a bent piece 53b bent piece 6 Vertical support 61 Vertical plate part 62 Back plate part 62a bent piece 62b bent piece 62c long hole 7 Fastening bolt 8 Pivot Bolt 9 Stop bolt 10 Hook bolt 11 Nut B Hanging bolt S Support member

Claims

1. an upper fitting including first and second horizontal support portions extending parallel to each other and a vertical support portion connecting base ends of both horizontal support portions, the first and second horizontal support portions being arranged one above the other to receive a support member between both horizontal support portions, and engaging with the support member so as to select either an upper or lower mounting orientation with respect to the support member; a tightening bolt that is screwed into the second horizontal support portion so as to vertically penetrate the second horizontal support portion and that vertically clamps the support member between the other horizontal support portion and the second horizontal support portion by abutting a tip end of the tightening bolt against the lower surface or the upper surface of the support member depending on the vertical installation orientation of the upper fitting; a pivot bolt that is attached so as to horizontally penetrate one of the horizontal support parts on the lower side in accordance with the vertical attachment direction of the upper fitting; A suspension bolt support device comprising: a lower metal fitting pivotally supported by the pivot bolt on one of the horizontal support parts disposed below the pivot bolt and supporting an upper end of the suspension bolt, The upper metal fitting is formed entirely by bending a single metal plate, The first horizontal support portion is formed into a substantially U-shaped cross section that opens toward the second horizontal support portion by a pair of parallel vertical plate portions and a horizontal plate portion consisting of two folded pieces that are folded at right angles along the outer sides of the pair of vertical plate portions and overlapped, and the pair of vertical plate portions is prevented from opening and closing by an opening prevention bolt that penetrates horizontally between the pair of vertical plate portions, the second horizontal support portion is formed in a rectangular tube shape by a pair of parallel vertical plate portions, an outer horizontal plate portion connecting outer sides of the pair of vertical plate portions at a right angle and having a screw hole into which the fastening bolt is screwed, and an inner horizontal plate portion consisting of two folded pieces folded at a right angle along the inner side of the pair of vertical plate portions and overlapping each other, the inner horizontal plate portion having a bolt hole facing the screw hole through which the fastening bolt is inserted, A hanging bolt support device characterized in that the vertical support portion comprises a pair of parallel vertical plate portions continuous with the pair of vertical plate portions of the first and second horizontal support portions, and a back plate portion consisting of two bent pieces bent at right angles along the outer vertical edges of the pair of vertical plate portions and butted together.

2. 2. The suspension bolt support according to claim 1, wherein the support member is an H-shaped steel material, and is used to receive one side of a lower flange of the H-shaped steel material between the first and second horizontal support parts, The back plate portion has a vertical long hole, The hook bolt is inserted into the long hole so that the fixed position in the axial direction and the vertical direction can be adjusted. A hanging bolt support device characterized in that the hook bolt extends along the underside of the lower flange of the H-shaped steel material, and the hook portion at the tip end is arranged to engage with the other side edge of the lower flange.

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