Hanging support bracket

Abstract

To provide a suspension support bracket that can accommodate various sizes of ceiling beam materials.SOLUTION: The suspension support bracket includes a first protrusion 5 through which a pressing bolt B1 that presses a lower flange piece F1 of an H-shaped steel F of a ceiling beam material can be inserted, a first side portion 2 provided with the first protrusion 5 integrally protruding laterally, a second protrusion 6 through which the pressing bolt B1 that presses the lower flange piece F1 of the H-shaped steel F can be inserted, a second side portion 3 provided with the second protrusion 6 integrally protruding laterally, and a connecting portion 4 that connects the first side portion 2 and the second side portion 3. The first protrusion 5 and the second protrusion 6 are arranged parallel to each other and facing each other.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a hanging support bracket. [Background technology]

[0002] For example, Patent Document 1 discloses a hanging support fitting for suspending an L-shaped steel bar used as a hanging member, the hanging support fitting having an upper piece into which a pressure bolt is screwed and left and right side pieces integrally formed by bending downwardly into a U-shape from both ends of the upper piece, the left and right side pieces having left and right insertion grooves for inserting into the lower flange pieces of the H-shaped steel and left and right screw fastening parts for fastening the upper end of the L-shaped steel bar with screws to suspend and support the L-shaped steel bar, the lower flange piece inserted into the left and right insertion grooves is supported by the lower flange piece of the H-shaped steel with the pressure bolt screwed into the upper piece, the L-shaped steel bar is suspended and supported in a hanging state by screwing fixing screws through screw insertion holes provided in the left and right screw fastening parts, and the ceiling base material is attached to the lower end of the L-shaped steel bar. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-204926 A Summary of the Invention [Problem to be solved by the invention]

[0004] Although the above-mentioned suspension support fittings are fully capable of withstanding external vibrations and shocks such as those caused by powerful earthquakes, there was a problem in that there was a limit to the size of the H-shaped steel ceiling beams to which they could be attached.

[0005] In view of the above problems, the present invention has an object to provide a suspension support bracket that can accommodate a variety of ceiling beam sizes. [Means for solving the problem]

[0006] The above object of the present invention can be achieved by the following means. Note that the parentheses indicate reference symbols of the embodiments described below, but the present invention is not limited thereto.

[0007] According to the invention of claim 1, a first protrusion (5) through which a pressing bolt (B1) can be inserted to press the flange portion of the ceiling beam material (the lower flange piece (F1) of the H-shaped steel (F) and the lower flange piece (G1) of the C-shaped steel (G)), a first side portion (2) on which the first protrusion (5) is integrally provided and protrudes laterally; A second protrusion (6) through which a pressing bolt (B1) can be inserted to press the flange portion of the ceiling beam (the lower flange piece (F1) of the H-shaped steel (F) and the lower flange piece (G1) of the C-shaped steel (G)); a second side portion (3) on which the second protrusion (6) is integrally provided and protrudes laterally; A connecting portion (4) that connects the first side portion (2) and the second side portion (3), A space (K) is formed between the first side portion (2) and the second side portion (3), The first protrusion (5) and the second protrusion (6) are The space (K) is sandwiched between the two. Parallel and facing arrangement R, The first protrusion (5) and the second protrusion (6) are provided with bolt insertion holes (5c, 6c) through which the pressing bolt (B1) can be inserted, and first screw insertion holes (screw insertion hole 5d, screw insertion hole 6d) through which a screw (B5) can be inserted. It is characterized by the following. According to the invention of claim 2, a first protrusion (5) through which a pressing bolt (B1) can be inserted to press the flange portion of the ceiling beam material (the lower flange piece (F1) of the H-shaped steel (F) and the lower flange piece (G1) of the C-shaped steel (G)), a first side portion (2) on which the first protrusion (5) is integrally provided and protrudes laterally; A second protrusion (6) through which a pressing bolt (B1) can be inserted to press the flange portion of the ceiling beam (the lower flange piece (F1) of the H-shaped steel (F) and the lower flange piece (G1) of the C-shaped steel (G)); a second side portion (3) on which the second protrusion (6) is integrally provided and protrudes laterally; A connecting portion (4) that connects the first side portion (2) and the second side portion (3), A space (K) is formed between the first side portion (2) and the second side portion (3), The first protrusion (5) and the second protrusion (6) are arranged in parallel and facing each other with the space (K) therebetween, The connecting portion (4) is characterized in that a plurality of second screw insertion holes (screw insertion holes 4b) through which the screws (B4) can be inserted are provided.

[0008] Claim 3 According to the invention, the above claim 1 or 2In the hanging support bracket described in the above, the width direction length (W1) of the first side portion (2) is shorter than the width direction length (W2) of the second side portion (3).

[0009] Claim 4 According to the present invention, in the hanging support bracket described in claim 1 or 2, the first side portion (2) has a plurality of first 3 A screw insertion hole (screw insertion hole 2a) is provided, The second side portion (3) has a plurality of first 4 A screw insertion hole (screw insertion hole 3a) is provided, The above 3 The diameter of the screw insertion hole (screw insertion hole 2a) is 4 It is characterized in that the diameter is smaller than the diameter of the screw insertion hole (screw insertion hole 3a). Effect of the Invention

[0012] Next, the effects of the present invention will be described with reference to the drawings. Note that the reference symbols in the parentheses are those of the embodiments described below, but the present invention is not limited thereto.

[0013] Claim 1 ,2 According to the invention, the first protrusion (5) and the second protrusion (6) through which the pressing bolt (B1) can be inserted to press the flange portion of the ceiling beam material (the lower flange piece (F1) of the H-shaped steel (F) and the lower flange piece (G1) of the C-shaped steel (G)) The space (K) between the first side portion (2) and the second side portion (3) is sandwiched between the first side portion (2) and the second side portion (3). Because they are arranged parallel and facing each other, the flanges of the ceiling beams (the lower flange piece (F1) of the H-shaped steel (F), and the lower flange piece (G1) of the C-shaped steel (G)) can be pressed from above and below with the pressing bolts (B1). Therefore, it can accommodate a variety of ceiling beam sizes. Furthermore, according to the invention as defined in claim 1, the suspension support bracket (1) can be firmly fixed to the flange portion of the ceiling beam (the lower flange piece (G1) of the C-shaped steel (G)). Furthermore, according to the invention as defined in claim 2, various members (for example, studs (MA)) can be attached and fixed to the connecting portion (4) depending on the application.

[0014] Claim 3According to the invention, it is possible to accommodate both cases in which a ceiling is assembled using a rafter (Na) and a rafter (Nb), and cases in which a ceiling is assembled using only the rafter (Nb) without using the rafter (Na).

[0015] Claim 4 According to the invention, the optimum screw can be selected to fix the furring strip support (Na) or the furring strip (Nb). [Brief description of the drawings]

[0018] [Figure 1] FIG. 2 is a perspective view of a suspension support bracket according to one embodiment of the present invention. [Diagram 2] 4A is an exploded front view of the hanging support bracket according to the embodiment, and FIG. 4B is a side view of the hanging support bracket according to the embodiment. [Diagram 3] This is a front view showing the state in which a hanging support bracket is attached to a lower flange piece of an H-shaped steel, which is a ceiling beam material, by pressing the front and back surfaces of the lower flange piece with a pressing bolt using the hanging support bracket of the same embodiment. [Figure 4] This is an oblique view showing the state in which the ceiling is assembled by connecting an H-shaped steel beam, which is a ceiling beam material, to a joist support, which is a ceiling base material, using the hanging support fittings of the same embodiment. [Diagram 5] This is an oblique view showing the state in which the ceiling is assembled by connecting an H-shaped steel beam, which is a ceiling beam material, to a rough girders, which is a ceiling base material, using the hanging support fittings of the same embodiment. [Figure 6] 13 is a perspective view showing a state in which a partition wall is attached to the hanging support bracket according to the embodiment. FIG. [Figure 7] This is an oblique view showing the state in which the ceiling is assembled by connecting a C-shaped steel beam, which is a ceiling beam material, to a joist support, which is a ceiling base material, using the hanging support fittings of the same embodiment. [Figure 8] This is an oblique view showing the state in which a ceiling is assembled by connecting a C-shaped steel beam, which is a ceiling beam material, to a rough girders, which is a ceiling base material, using the hanging support fittings of the same embodiment. [Figure 9] 13 is a perspective view showing a state in which a partition wall is attached to the hanging support bracket according to the embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, an embodiment of a hanging support fitting according to the present invention will be described in detail with reference to the drawings. In the following description, when directions such as up, down, left, and right are indicated, they refer to up, down, left, and right when viewed from the front in the drawings.

[0020] <Explanation of hanging support bracket> 1, the hanging support bracket 1 according to this embodiment is formed in a roughly U-shape, and is mainly composed of a first side portion 2, a second side portion 3, a connecting portion 4 connecting the first side portion 2 and the second side portion 3, a first protrusion 5, and a second protrusion 6. Each component will be described in detail below.

[0021] <Explanation of the first side> The first side portion 2 is located on the upper side as shown in Fig. 1 and Fig. 2(a), and is formed in a horizontally elongated rectangular shape when viewed from the front, extending in the left-right direction, and has a width (vertical) length of W1 as shown in Fig. 2(a). In addition, in the first side portion 2, as shown in Fig. 1 and Fig. 2(a), a plurality of screw insertion holes 2a through which screws are inserted are provided at regular intervals along the longitudinal direction (left-right direction) and are formed in a circular shape. The diameter d1 of the screw insertion holes 2a is, for example, φ4.5.

[0022] <Explanation of the second side> The second side portion 3, as shown in Figures 1 and 2(a), is located on the lower side, and is formed in a horizontally elongated rectangular shape when viewed from the front, extending in the left-right direction, and is formed so as to be parallel to the first side portion 2. Furthermore, as shown in Figure 1, the second side portion 3 is formed so as to form a space K between the first side portion 2 and the second side portion 3. Furthermore, as shown in Figure 2(a), the length in the width direction (vertical direction) is formed to be W2. Note that the length W2 is longer than the length W1.

[0023] 1 and 2(a), a plurality of screw insertion holes 3a through which screws are inserted are provided in the second side portion 3 at regular intervals along the longitudinal direction (left-right direction) and in a circular shape. The diameter d2 of the screw insertion holes 3a (see FIG. 2(a)) is, for example, φ5.2, which is larger than the diameter d1 of the screw insertion hole 2a.

[0024] <Explanation of connection parts> As shown in Fig. 1 and Fig. 2(a), the connecting portion 4 is formed in a vertically elongated rectangular shape when viewed from the front, extending in the up-down direction, which is a direction perpendicular to the left-right direction, and the lower surface 2b of the first side portion 2 and the upper surface 3b of the second side portion 3 are integrally connected to the left side surface 4a. This allows the connecting portion 4 to connect the first side portion 2 and the second side portion 3. Thus, as shown in Fig. 1 and Fig. 2(a), multiple screw insertion holes 4b through which screws are inserted are provided in a circular shape at regular intervals along the longitudinal direction (up-down direction) of the connecting portion 4. The diameter d3 of the screw insertion holes 4b is, for example, φ5.2.

[0025] <Explanation of the first protrusion> As shown in Fig. 2(b), the first protrusion 5 is formed in a rectangular shape in a side view, and is provided so as to protrude from the first side portion 2 toward the front as shown in Fig. 1. More specifically, as shown in Fig. 2(a), the first protrusion 5 is integrally provided on the lower side surface 2b of the first side portion 2, and is provided so as to protrude from the first side portion 2 toward the front as shown in Fig. 1 by bending along the bending line O1. Note that, as shown in Figs. 1 and 2(a), the first protrusion 5 is provided with circular bolt insertion holes 5c through which a bolt is inserted on the left side surface 5a and the right side surface 5b, respectively, and a circular screw insertion hole 5d through which a screw is inserted is provided between the pair of bolt insertion holes 5c.

[0026] <Explanation of the second protrusion> As shown in Fig. 2(b), the second protrusion 6 is formed in a rectangular shape in a side view, and is provided so as to protrude from the second side portion 3 toward the front as shown in Fig. 1. More specifically, as shown in Fig. 2(a), the second protrusion 6 is integrally provided on the upper side surface 3b of the second side portion 3, and is provided so as to protrude from the second side portion 3 toward the front as shown in Fig. 1 by bending along the bending line O2. Note that, as shown in Figs. 1 and 2(a), the second protrusion 6 has a bolt insertion hole 6c through which a bolt is inserted, which is provided circularly on the left side surface 6a and the right side surface 6b, respectively, and a screw insertion hole 6d through which a screw is inserted is provided circularly between the pair of bolt insertion holes 6c.

[0027] Incidentally, the first protrusion 5 and the second protrusion 6 are arranged parallel and facing each other as shown in Fig. 1 and Fig. 2(b). In this way, for example, as shown in Fig. 3, when attaching the hanging support bracket 1 to the lower flange piece F1 of the H-shaped steel F, which is a ceiling beam material attached to the underside of the ceiling part S, if the lower flange piece F1 has a large width, as shown in Fig. 3, the pressing bolts B1 can be screwed into the pair of bolt insertion holes 5c of the first protrusion 5, and the front surface F1a of the lower flange piece F1 can be pressed by the tip of the pressing bolt B1. Furthermore, the pressing bolts B1 can be screwed into the pair of bolt insertion holes 6c of the second protrusion 6, and the back surface F1b of the lower flange piece F1 can be pressed by the tip of the pressing bolt B1. This makes it possible to attach the hanging support bracket 1 even to the lower flange piece F1 with a large width. On the other hand, if the lower flange piece F1 is not large in width, as in the conventional method, the pressing bolts B1 can be screwed into only a pair of bolt insertion holes 5c of the first protrusion 5, and the tip of the pressing bolt B1 can be used to press the surface of the lower flange piece F1.

[0028] In this way, it becomes possible to accommodate various sizes of H-shaped steel, and therefore to accommodate various sizes of ceiling beams. As shown in Fig. 3, a nut B1a is screwed onto the pressing bolt B1 to fix the position of the pressing bolt B1.

[0029] <Explanation of examples of using hanging support fittings> Next, examples of use of the hanging support fitting 1 configured as above will be specifically described with reference to Figures 4 to 9. In the examples of use described below, for ease of understanding, only an example in which the pressing bolt B1 is used on either the first protrusion 5 or the second protrusion 6 is shown, but it is of course possible to use the pressing bolt B1 on both.

[0030] The example of use shown in FIG. 4 shows an example of use when assembling a ceiling using the joist support Na and the joist Nb. That is, as shown in FIG. 4, an H-shaped steel F, which is a ceiling beam material, is attached to the underside of the ceiling part S. Then, with the first side part 2 of the hanging support bracket 1 facing up and the second side part 3 facing down, the lower flange piece F1 of the H-shaped steel F is sandwiched between the first side part 2 and the second side part 3, and the pressing bolts B1 are screwed into a pair of bolt insertion holes 5c (see FIG. 1 and FIG. 2(a)) of the first protrusion 5 (see FIG. 1 and FIG. 2), respectively, and the tip part of the pressing bolt B1 presses the surface F1a of the lower flange piece F1. Note that, as shown in FIG. 4, a nut B1a is screwed into the pressing bolt B1 to fix the position of the pressing bolt B1.

[0031] Next, as shown in Fig. 4, the ceiling base material, the joist support Na, is fixed to the second side portion 3 with a screw B2 using the screw insertion hole 3a provided in the second side portion 3. Then, as shown in Fig. 4, the ceiling base material, the joist Nb, is attached to the joist support Na perpendicularly to the joist support Na with a known clip C, and the ceiling board T is fixed to the underside of the joist Nb with a screw or adhesive. This completes the assembly of the ceiling.

[0032] The example of use shown in FIG. 5 shows an example of use when assembling a ceiling only with the joists Nb without using the joists Na. That is, as shown in FIG. 5, an H-shaped steel F, which is a ceiling beam material, is attached to the underside of the ceiling part S. Then, with the first side part 2 of the hanging support bracket 1 facing down and the second side part 3 facing up, the lower flange piece F1 of the H-shaped steel F is sandwiched between the first side part 2 and the second side part 3, and the pressing bolts B1 are screwed into the pair of bolt insertion holes 6c (see FIG. 1 and FIG. 2(a)) of the second protrusion 6, respectively, and the tip of the pressing bolt B1 presses the surface F1a of the lower flange piece F1. Note that, as shown in FIG. 5, a nut B1a is screwed into the pressing bolt B1 to fix the position of the pressing bolt B1.

[0033] Next, as shown in Fig. 5, the ceiling base material, the joist Nb, is fixed to the first side portion 2 with a screw B3 using the screw insertion hole 2a provided in the first side portion 2. Then, the ceiling board T is fixed to the underside of the joist Nb with a screw or adhesive. This completes the assembly of the ceiling.

[0034] Thus, in this embodiment, as explained above, the length W1 in the width direction (the vertical direction shown in FIG. 2(a)) of the first side portion 2 is shorter than the length W2 in the width direction (the vertical direction shown in FIG. 2(a)) of the second side portion 3. This is to match the size of the furring strip Nb when fixing the furring strip Nb to the first side portion 2 (see FIG. 5). In this way, the first side portion 2 does not get in the way when fixing the ceiling board T to the underside of the furring strip Nb with screws or adhesive.

[0035] In addition, the length W2 in the width direction (vertical direction shown in FIG. 2(a)) of the second side portion 3 is longer than the length W1 in the width direction (vertical direction shown in FIG. 2(a)) of the first side portion 2. This is to match the size of the furring strip support Na when fixing the furring strip support Na to the first side portion 2 (see FIG. 5). In this way, the furring strip support Na can be stably fixed to the first side portion 2.

[0036] Needless to say, the width of the furring strip Nb at the point where it is attached to the first side portion 2 is narrower than the width of the furring strip support Na at the point where it is attached to the second side portion 3.

[0037] By making the length W1 in the width direction (the vertical direction shown in Figure 2(a)) of the first side portion 2 different from the length W2 in the width direction (the vertical direction shown in Figure 2(a)) of the second side portion 3 in this manner, it becomes possible to accommodate both cases in which the ceiling is assembled using the furring strip support Na and the furring strip Nb, and cases in which the ceiling is assembled using only the furring strip Nb without using the furring strip support Na.

[0038] In this embodiment, the diameter d1 of the screw insertion hole 2a in the first side portion 2 is smaller than the diameter d2 of the screw insertion hole 3a in the second side portion 3. This is to match the size of the screw B3 that is optimal when attaching and fixing the first side portion 2 to the furring strip Nb, and to match the size of the screw B2 that is optimal when attaching and fixing the second side portion 3 to the furring strip support Na. In this way, the optimal screw can be selected to fix the furring strip support Na or the furring strip Nb.

[0039] As explained above, the connecting portion 4 also has screw insertion holes 4b. Therefore, as shown in Fig. 6, with the suspension support bracket 1 attached to the lower flange piece F1 of the H-shaped steel F, various members such as studs MH can be attached and fixed using screws B4 using the screw insertion holes 4b depending on the application.

[0040] On the other hand, in the examples of use shown in Figures 4 to 6, H-shaped steel F is used as the ceiling beam material, but the present invention is not limited to this and can also be applied to C-shaped steel. This point will be described in detail below.

[0041] The example of use shown in FIG. 7 shows an example of use when assembling a ceiling using the joist support Na and the joist Nb. That is, as shown in FIG. 7, a C-shaped steel G, which is a ceiling beam material, is attached to the underside of the ceiling part S. Then, with the first side part 2 of the hanging support bracket 1 facing up and the second side part 3 facing down, the lower flange piece G1 of the C-shaped steel G is sandwiched between the first side part 2 and the second side part 3, and a pressing bolt B1 is screwed into one of a pair of bolt insertion holes 5c (see FIG. 1 and FIG. 2(a)) of the first protrusion 5, and the tip part of the pressing bolt B1 presses the surface G1a of the lower flange piece G1. At this time, as shown in FIG. 7, a screw B5 is inserted into the screw insertion hole 6d provided in the second protrusion 6, and the second protrusion 6 is attached and fixed to the lower flange piece G1. As a result, the hanging support bracket 1 is firmly fixed to the lower flange piece G1 of the C-shaped steel G. As shown in FIG. 7, a nut B1a is screwed onto the pressing bolt B1 to fix the position of the pressing bolt B1.

[0042] Next, as shown in Fig. 7, the ceiling base material, the joist support Na, is fixed to the second side portion 3 with a screw B2 using the screw insertion hole 3a provided in the second side portion 3. Then, as shown in Fig. 7, the ceiling base material, the joist Nb, is attached to the joist support Na perpendicularly to the joist support Na with a known clip C, and the ceiling board T is fixed to the underside of the joist Nb with a screw or adhesive. This completes the assembly of the ceiling.

[0043] The example of use shown in FIG. 8 shows an example of use when assembling a ceiling only with the joist Nb without using the joist support Na. That is, as shown in FIG. 8, a C-shaped steel G, which is a ceiling beam material, is attached to the underside of the ceiling part S. Then, with the first side part 2 of the hanging support bracket 1 facing down and the second side part 3 facing up, the lower flange piece G1 of the C-shaped steel G is sandwiched between the first side part 2 and the second side part 3, and a pressing bolt B1 is screwed into one of a pair of bolt insertion holes 6c (see FIG. 1 and FIG. 2(a)) of the second protrusion 6, and the tip part of the pressing bolt B1 presses the surface G1a of the lower flange piece G1. At this time, as shown in FIG. 8, a screw B5 is inserted into the screw insertion hole 5d provided in the first protrusion 5, and the first protrusion 5 is attached and fixed to the lower flange piece G1. As a result, the hanging support bracket 1 is firmly fixed to the lower flange piece G1 of the C-shaped steel G. As shown in FIG. 8, a nut B1a is screwed onto the pressing bolt B1 to fix the position of the pressing bolt B1.

[0044] Next, as shown in Fig. 8, the ceiling base material, the joist Nb, is fixed to the first side portion 2 with a screw B3 using the screw insertion hole 2a provided in the first side portion 2. Then, the ceiling board T is fixed to the underside of the joist Nb with a screw or adhesive. This completes the assembly of the ceiling.

[0045] Therefore, as explained above, the suspension support bracket 1 in this embodiment can also be used for C-shaped steel G.

[0046] As explained above, the connecting portion 4 also has a screw insertion hole 4b. Therefore, in the case of a C-shaped steel, as shown in Fig. 9, with the suspension support bracket 1 attached to the lower flange piece G1 of the C-shaped steel G, various members such as a stud MH can be attached and fixed using screws B4 using the screw insertion hole 4b depending on the application.

[0047] According to the present embodiment described above, it is possible to accommodate a variety of sizes of ceiling beams.

[0048] The hanging support fitting 1 shown in this embodiment is merely one example, and various modifications and changes are possible within the scope of the gist of the present invention described in the claims. For example, in this embodiment, an example has been shown in which one pressing bolt B1 is used to support the hanging support fitting 1 on the lower flange piece G1 of the C-shaped steel G, but multiple bolts may be used. [Explanation of symbols]

[0049] 1 Suspension support bracket 2 First Side 2a Screw insertion hole (No. 3 Screw insertion hole) 3 Second Side 3a Screw insertion hole (No. 4 Screw insertion hole) 4 Connecting part 4b Screw insertion hole (No. 2 Screw insertion hole) 5 First protrusion 5c Bolt insertion hole 5d Screw insertion hole (No. 1 Screw insertion hole) 6 Second protrusion 6c Bolt insertion hole 6d Screw insertion hole (No. 1 Screw insertion hole) B1 Press bolt B2~B5 screws W1 (first side width) length W2 (width of second side) length FH section steel F1 Lower flange piece (flange part) GC shape steel G1 Lower flange piece (flange part) Na Nobori Uke Nb Nobori T Ceiling Board MA Studs

Claims

1. A first protrusion through which a pressing bolt can be inserted to press against a flange portion of a ceiling beam; a first side portion on which the first protrusion is integrally provided and protrudes laterally; A second protrusion through which a pressing bolt can be inserted to press against the flange portion of the ceiling beam; a second side portion on which the second protrusion is integrally provided and protrudes laterally; a connecting portion connecting the first side portion and the second side portion, A space is formed between the first side portion and the second side portion, The first protrusion and the second protrusion are arranged in parallel and facing each other with the space therebetween, The first protrusion and the second protrusion are provided with a bolt insertion hole through which the pressure bolt can be inserted and a first screw insertion hole through which a screw can be inserted.

2. A first protrusion through which a pressing bolt that presses against a flange portion of a ceiling beam can be inserted; a first side portion on which the first protrusion is integrally provided and protrudes laterally; A second protrusion through which a pressing bolt can be inserted to press against the flange portion of the ceiling beam; a second side portion on which the second protrusion is integrally provided and protrudes laterally; a connecting portion connecting the first side portion and the second side portion, A space is formed between the first side portion and the second side portion, The first protrusion and the second protrusion are arranged in parallel and facing each other with the space therebetween, The connecting portion is provided with a plurality of second screw insertion holes through which screws can be inserted, forming a suspension support bracket.

3. 3. The suspension support bracket according to claim 1, wherein the length of the first side portion in the width direction is shorter than the length of the second side portion in the width direction.

4. The first side portion is provided with a plurality of third screw insertion holes, the second side portion is provided with a plurality of fourth screw insertion holes, 3. The suspension support bracket according to claim 1, wherein a diameter of the third screw insertion hole is smaller than a diameter of the fourth screw insertion hole.

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