beam

Abstract

A beam is desired that can be made lighter while maintaining sufficient beam strength. [Solution] A beam 1 is arranged to extend along an extension direction X, comprising a first member 10, a second member 20 arranged on a second side Y2 in the width direction relative to the first member 10 so as to face the first member 10 in the width direction Y, and a connecting member 3 that connects the first member 10 and the second member 20 in the width direction Y, wherein the first member 10 has a first side portion 11, the second member 20 has a second side portion 21, and the connecting member 3 comprises a first joining surface portion 31 joined to the surface of the first side portion 11 facing the second side Y2 in the width direction, a second joining surface portion 32 joined to the surface of the second side portion 21 facing the first side Y2 in the width direction, and a connecting portion 33 that connects the first joining surface portion 11 and the second joining surface portion 21 in the width direction Y, and an opening 6 is formed between the first member 10 and the second member 20 in the width direction Y, opening toward the first side Z1 in the vertical direction and extending along the extension direction X.

Description

Technical Field

[0001] The present invention relates to a beam.

Background Art

[0002] For example, Japanese Patent Application Laid-Open No. 2020-56464 (Patent Document 1) discloses a technique related to a beam. Hereinafter, the reference numerals shown in parentheses in the description of the background art are those of Patent Document 1.

[0003] The beam (frame member 11) of Patent Document 1 includes a pair of steel channels (42) extending in the horizontal direction. Holes (42a, 42b) for inserting bolts (45) are formed at both ends of the pair of steel channels (42). Then, by inserting bolts (45) into the respective holes (42a, 42b) and fastening the tip sides of the bolts (45) with nuts (46), the pair of steel channels (42) are connected to each other. Further, by connecting the pair of steel channels (42) with a cylindrical spacer (44) inserted in the shaft portion of the bolt (45), an opening (slit 43) with a predetermined interval (W1) is formed between the pair of steel channels (42). The beam of Patent Document 1 uses this opening to suspend and support a supported member (ceiling suspension 100).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] As described in Patent Document 1, when a beam is suspended from a member above it, or when a supported member is suspended and supported from the beam, it is necessary to increase the thickness of the horizontally extending member (structural steel 42 in Patent Document 1) in the beam to ensure sufficient beam strength. However, increasing the thickness of the horizontally extending member leads to the problem of increased beam weight.

[0006] Therefore, a beam that can reduce weight while maintaining beam strength is desired. [Means for solving the problem]

[0007] The beam relating to this disclosure is a beam that is suspended from above and arranged to extend along the direction of extension, In a vertical view, the direction perpendicular to the extension direction is defined as the width direction, one side in the width direction is defined as the first width direction side, the other side in the width direction is defined as the second width direction side, one side in the vertical direction is defined as the first vertical direction side, and the opposite side is defined as the second vertical direction side. The device comprises a first member, a second member positioned on the second side in the width direction relative to the first member so as to face the first member in the width direction, and a connecting member connecting the first member and the second member in the width direction. The first member has a first side surface portion that is aligned with the extending direction and the vertical direction, The second member has a second side portion that is aligned with the extending direction and the vertical direction, The connecting member comprises a first joining surface portion joined to the surface of the first side portion facing the second side in the width direction, a second joining surface portion joined to the surface of the second side portion facing the first side in the width direction, and a connecting portion that connects the first joining surface portion and the second joining surface portion in the width direction. An opening is formed between the first member and the second member in the width direction, which opens toward the first side in the vertical direction and extends along the extending direction. 、 The first member has a first projection that protrudes from the first end of the first side surface in the vertical direction toward the second side in the width direction and along the extending direction, The second member has a second projection that protrudes from the first end of the second side surface in the vertical direction toward the first side in the width direction and along the extending direction, The first protrusion and the second protrusion are spaced apart in the width direction. The opening is formed between the first protrusion and the second protrusion in the width direction, The connecting member comprises a first reinforcing portion that contacts the first protrusion from the second side in the vertical direction and is arranged along the extending direction, and a second reinforcing portion that contacts the second protrusion from the second side in the vertical direction and is arranged along the extending direction. The first joining surface portion is formed to be aligned with the extending direction and the vertical direction, The second joining surface portion is formed to align with the extending direction and the vertical direction, The connecting portion is formed to connect the second end of the first joining surface portion in the vertical direction and the second end of the second joining surface portion in the vertical direction in the width direction. The first reinforcing portion, the first joining surface portion, the connecting portion, the second reinforcing portion, and the second joining surface portion are integrally formed. 。

[0008] According to this configuration, an opening that opens toward the first side in the vertical direction is formed between the first member and the second member in the width direction so as to extend along the extending direction. Therefore, by using this opening, it is easy to adjust the position in the extending direction of the member connected to the beam with respect to the beam. Further, in a state where the first member and the second member are connected by a connecting member, the first side surface portion of the first member and the first joining surface portion of the connecting member are joined, and the second side surface portion of the second member and the second joining surface portion of the connecting member are joined. For this reason, the first member and the second member can be appropriately connected, and each of the first side surface portion and the second side surface portion can be appropriately reinforced. As a result, it is possible to ensure the strength of the first side surface portion and the second side surface portion without reinforcing the entire first member and the second member. Therefore, it is easy to achieve weight reduction while ensuring the strength of the beam. As described above, according to this configuration, it is possible to achieve weight reduction while ensuring the strength of the beam.

[0009] Another beam relating to this disclosure is a beam that is suspended from above via a relay member and arranged to extend along the direction of extension, In a vertical view, the direction perpendicular to the extension direction is defined as the width direction, one side in the width direction is defined as the first width direction side, the other side in the width direction is defined as the second width direction side, one side in the vertical direction is defined as the first vertical direction side, and the opposite side is defined as the second vertical direction side. The device comprises a first member, a second member positioned on the second side in the width direction relative to the first member so as to face the first member in the width direction, and a connecting member connecting the first member and the second member in the width direction. The first member has a first side surface portion that is aligned with the extending direction and the vertical direction, [[ID=G1]] The second member has a second side portion that is aligned with the extending direction and the vertical direction, The connecting member comprises a first joining surface portion joined to the surface of the first side portion facing the second side in the width direction, a second joining surface portion joined to the surface of the second side portion facing the first side in the width direction, and a connecting portion that connects the first joining surface portion and the second joining surface portion in the width direction. An opening is formed between the first member and the second member in the width direction, which opens toward the first side in the vertical direction and extends along the extending direction. The first member has a first projection that protrudes from the first end of the first side surface in the vertical direction toward the second side in the width direction and along the extending direction, The second member has a second projection that protrudes from the first end of the second side surface in the vertical direction toward the first side in the width direction and along the extending direction, The first protrusion and the second protrusion are spaced apart in the width direction. The opening is formed between the first protrusion and the second protrusion in the width direction and is set to a size that allows the locking member provided on the relay member to be inserted through it. The connecting member comprises a first reinforcing portion that contacts the first protrusion from the second side in the vertical direction and is arranged along the extending direction, and a second reinforcing portion that contacts the second protrusion from the second side in the vertical direction and is arranged along the extending direction. Each of the first and second reinforcing portions is formed to conform to the extending direction and the width direction, and has a contact surface that contacts the locking member inserted into the opening from the first side in the vertical direction.

[0010] Another beam relating to this disclosure is a beam that is suspended from above and arranged to extend along the direction of extension, In a vertical view, the direction perpendicular to the extension direction is defined as the width direction, one side in the width direction is defined as the first width direction side, the other side in the width direction is defined as the second width direction side, one side in the vertical direction is defined as the first vertical direction side, and the opposite side is defined as the second vertical direction side. The device comprises a first member, a second member positioned on the second side in the width direction relative to the first member so as to face the first member in the width direction, and a connecting member connecting the first member and the second member in the width direction. The first member has a first side surface portion that is aligned with the extending direction and the vertical direction, The second member has a second side portion that is aligned with the extending direction and the vertical direction, The connecting member comprises a first joining surface portion joined to the surface of the first side portion facing the second side in the width direction, a second joining surface portion joined to the surface of the second side portion facing the first side in the width direction, and a connecting portion that connects the first joining surface portion and the second joining surface portion in the width direction. An opening is formed between the first member and the second member in the width direction, which opens toward the first side in the vertical direction and extends along the extending direction. The first member has a first projection that protrudes from the first end of the first side surface in the vertical direction toward the second side in the width direction and along the extending direction, The second member has a second projection that protrudes from the first end of the second side surface in the vertical direction toward the first side in the width direction and along the extending direction, The first protrusion and the second protrusion are spaced apart in the width direction. The opening is formed between the first protrusion and the second protrusion in the width direction, The first side portion comprises an overlapping region which overlaps with the first joint surface portion in a widthwise view along the width direction, a non-overlapping region which does not overlap with the first joint surface portion in a widthwise view, and a connecting region to which the overlapping region and the non-overlapping region are connected. The connection region includes a first support portion formed such that it extends toward the second width direction as it extends toward the second vertical direction, The first end of the first joint surface portion in the vertical direction abuts against the first protrusion, and the second end of the first joint surface portion in the vertical direction abuts against the first support portion.

[0011] Further features and advantages of the beam will become clear from the following description of exemplary and non-limiting embodiments described with reference to the drawings.

Brief Description of the Drawings

[0012] [Figure 1] Perspective view of the conveying equipment [Figure 2] Perspective view illustrating the arrangement relationship between the beam and the support member [Figure 3] Front view of the beam [Figure 4] Plan view illustrating the arrangement relationship between the beam and the locking member [Figure 5] Front view illustrating the state where the relay member is attached to the beam [Figure 6] Plan view schematically showing the connection between a plurality of beams [Figure 7] Front view of the beam of another embodiment [Figure 8] Front view of the beam of another embodiment [Figure 9] Front view of the beam of another embodiment

Modes for Carrying Out the Invention

[0013] In the following section, an example of applying an embodiment of beam 1 to the conveying equipment 100 will be described based on the drawings.

[0014] As shown in Figures 1 and 2, the transport equipment 100 comprises a support member 7, a beam 1, a relay member 4, a supported member 94, and a support column 95. Multiple support members 7 are arranged along the horizontal plane and along the ceiling. Each support member 7 is supported by multiple support columns 95. In the example in Figure 1, each of the multiple support members 7 is connected to one another. The support columns 95 are positioned to support the connection points between the support members 7. In this example, the multiple support columns 95 are provided on the floor and support the support members 7 from below. The multiple support members 7 are arranged in a grid pattern when viewed from above. Between the floor and these support members 7, it is possible to install, for example, a transport device for transporting goods. In this example, the supported member 94 is a component of the transport device for transporting goods. Here, the transport device is a device that moves goods along a transport path while suspending and supporting them. The supported member 94 is a guide rail that guides the movement of the goods. The guide rail is further equipped with a moving device that moves an item along the guide rail while suspending it, and a drive device for driving the moving device. Here, the item is a hanger on which clothing can be hung, but it is not limited to this. In addition, the supported member 94 may be other than the guide rail, for example, a storage shelf for storing items, or a component of a device other than the conveying device. In this way, the object suspended from the beam 1 can be changed as needed.

[0015] Beam 1 is suspended from above and positioned to extend along the extension direction X. The extension direction X is the direction along the horizontal plane and the direction in which the beam 1 extends. Multiple beams 1 are arranged in the conveying equipment 100. Each beam 1 is suspended and supported by a support member 7 via a relay member 4. The supported member 94 is also suspended and supported by the beam 1 via a relay member 4. Here, the relay member 4 is a suspension bolt. Multiple beams 1 may be supported by the same support member 7, as shown in Figure 2, for example, or they may be supported by different support members 7. Furthermore, the dimensions of the extension direction X of the multiple beams 1 do not necessarily have to be the same length. For example, the dimensions of the extension direction X of the multiple beams 1 may be made different depending on the size of the supported member 94 to be suspended, or the arrangement area of ​​the support members 7 in the conveying equipment 100. In this embodiment, the direction perpendicular to the extension direction X when viewed from above is defined as the width direction Y, one side of the width direction Y is defined as the first width direction Y1, the other side of the width direction Y is defined as the second width direction Y2, one side of the vertical direction Z is defined as the first vertical direction Z1, and the opposite side is defined as the second vertical direction Z2. In this embodiment, the first vertical direction Z1 is defined as the upper side of the vertical direction Z, and the second vertical direction Z2 is defined as the lower side of the vertical direction Z. In this embodiment, the "connecting member" is defined as the upper connecting member 3, the "first joining surface" as the first upper joining surface 31, the "second joining surface" as the second upper joining surface 32, the "connecting part" as the upper connecting part 33, and the "opening" as the upper opening 6.

[0016] As shown in Figure 3, the beam 1 comprises a first member 10, a second member 20 positioned on the second side Y2 in the width direction relative to the first member 10 so as to face the first member 10 in the width direction Y, and an upper connecting member 3 that connects the first member 10 and the second member 20 in the width direction Y. The first member 10 and the second member 20 are each formed along the extending direction X. Furthermore, the first member 10 and the second member 20 are formed so that their dimensions in the extending direction X are the same. In this embodiment, the upper connecting member 3 connects the first member 10 and the second member 20 at a position above their central region in the vertical direction Z. The upper connecting member 3 is positioned inside the width direction Y of the first member 10 and the second member 20. Furthermore, the upper connecting member 3 is formed to extend along the extending direction X. In this example, the dimension of the upper connecting member 3 in the extending direction X is formed to be the same as the dimension of the first member 10 and the second member 20 in the extending direction X. However, it may be formed to be shorter than, for example, the dimension of the upper connecting member 3 in the extending direction X of the first member 10 and the second member 20.

[0017] The first member 10 includes a first side portion 11 that extends in the extending direction X and the vertical direction Z. The first member 10 also includes a first upper projection 12 that protrudes from the end of the first side portion 11 on the first side Z1 in the vertical direction toward the second side Y2 in the width direction and extends along the extending direction X. In this example, the first side portion 11 and the first upper projection 12 are integrally formed. That is, the first upper projection 12 is bent inward in the width direction Y (second side Y2 in the width direction) from the upper end (end of the first side Z1 in the vertical direction) of the first side portion 11. The first side portion 11 is formed in a plate shape that extends in the vertical direction Z and the extending direction X. The first upper projection 12 is also formed in a plate shape that extends along the width direction Y and the extending direction X.

[0018] The first side portion 11 includes a first upper overlapping region 11a, which overlaps with the first upper joining surface portion 31 (described later) in a widthwise view along the width direction Y; a first non-overlapping region 11b, which does not overlap with the first upper joining surface portion 31 in a widthwise view; and a first upper connecting region 11c, to which the first upper overlapping region 11a and the first non-overlapping region 11b are connected. The first non-overlapping region 11b is located below the first upper overlapping region 11a (second side Z2 in the vertical direction). The first upper connecting region 11c is located between the first upper overlapping region 11a and the first non-overlapping region 11b. Each of the first upper overlapping region 11a and the first non-overlapping region 11b is formed in a plate shape along the vertical direction Z and the extending direction X. The first non-overlapping region 11b is positioned inside the width direction Y (second side Y2 in the width direction) relative to the first upper overlapping region 11a. The first upper projection 12 is formed at the upper end of the first upper overlapping region 11a. The first upper connecting region 11c is formed from the lower end of the first upper overlapping region 11a.

[0019] The first upper connection region 11c is provided with a first upper support portion 16 which is formed to extend towards the second side Y2 in the width direction as it extends towards the second side Z2 in the vertical direction. The first upper support portion 16 has a first upper inclined surface 16a which faces upward and is inclined to extend towards the second side Y2 in the width direction as it extends downward (towards the second side Z2 in the vertical direction).

[0020] The first member 10 further includes a first lower projection 18 that protrudes from the end of the second side Z2 in the vertical direction of the first side portion 11 toward the second side Y2 in the width direction and along the extending direction X. The first side portion 11 and the first lower projection 18 are integrally formed. That is, the first lower projection 18 is bent inward in the width direction Y (second side Y2 in the width direction) from the lower end (end of the second side Z2 in the vertical direction) of the first side portion 11. The first lower projection 18 is formed in a plate shape along the width direction Y and the extending direction X.

[0021] The first side portion 11 further comprises a first lower overlapping region 11d, which is the portion that overlaps with the first lower joining surface portion 51 described later in a widthwise view along the width direction Y, and a first lower connecting region 11e, which is the connecting region between the first lower overlapping region 11d and the first non-overlapping region 11b. The first non-overlapping region 11b does not overlap with the first upper joining surface portion 31 or the first lower joining surface portion 51 in a widthwise view. The first non-overlapping region 11b is positioned above the first lower overlapping region 11d. The first lower connection region 11e is located between the first lower overlapping region 11d and the first non-overlapping region 11b. The first lower overlapping region 11d is formed in a plate shape along the vertical direction Z and the extending direction X. The first non-overlapping region 11b is located inside the width direction Y (second side Y2 in the width direction) relative to the first lower overlapping region 11d. The first lower connection region 11e is formed from the upper end of the first lower overlapping region 11d.

[0022] The first lower connection region 11e is provided with a first lower support portion 17 formed such that it extends toward the second side Y2 in the width direction as it extends toward the first side Z1 in the vertical direction. The first lower support portion 17 has a first lower inclined surface 17a formed on its downward-facing surface, which is inclined so as it extends toward the second side Y2 in the width direction as it extends toward the upward side (first side Z1 in the vertical direction).

[0023] The second member 20 has a second side portion 21 that is aligned with the extending direction X and the vertical direction Z. The second member 20 also has a second upper projection 22 that protrudes from the end of the second side portion 21 on the first side Z1 in the vertical direction toward the first side Y1 in the width direction and is aligned with the extending direction X. In this example, the second side portion 21 and the second upper projection 22 are integrally formed. That is, the second upper projection 22 is bent inward in the width direction Y (first side Y1 in the width direction) from the upper end (end of the first side Z1 in the vertical direction) of the second side portion 21. The second side portion 21 is formed in a plate shape aligned with the vertical direction Z and the extending direction X. The second upper projection 22 is also formed in a plate shape aligned with the width direction Y and the extending direction X.

[0024] The second side portion 21 comprises a second upper overlapping region 21a, which overlaps with the second upper joining surface portion 32 (described later) in a widthwise view along the width direction Y; a second non-overlapping region 21b, which does not overlap with the second upper joining surface portion 32 in a widthwise view; and a second upper connecting region 21c, which is the connecting region between the second upper overlapping region 21a and the second non-overlapping region 21b. The second non-overlapping region 21b is located below the second upper overlapping region 21a (second side Z2 in the vertical direction). The second upper connecting region 21c is located between the second upper overlapping region 21a and the second non-overlapping region 21b. Each of the second upper overlapping region 21a and the second non-overlapping region 21b is formed in a plate shape along the vertical direction Z and the extending direction X. The second non-overlapping region 21b is positioned inside the width direction Y (first side Y1 in the width direction) relative to the second upper overlapping region 21a. The second upper projection 22 is formed at the upper end of the second upper overlapping region 21a. The second upper connecting region 21c is formed from the lower end of the second upper overlapping region 21a.

[0025] The second upper connection region 21c is provided with a second upper support portion 26 formed such that it extends toward the first side Y1 in the width direction as it extends toward the second side Z2 in the vertical direction. The second upper support portion 26 has a second upper inclined surface 26a formed on its surface facing upward, which is inclined so as it extends toward the first side Y1 in the width direction as it extends toward the downward side (second side Z2 in the vertical direction).

[0026] The second member 20 further includes a second lower projection 28 that protrudes from the end of the second side Z2 in the vertical direction of the second side portion 21 toward the first side Y1 in the width direction and along the extending direction X. The second side portion 21 and the second lower projection 28 are integrally formed. That is, the second lower projection 28 is bent inward in the width direction Y (first side Y1 in the width direction) from the lower end (end of the first side Z1 in the vertical direction) of the second side portion 21. The second lower projection 28 is formed in a plate shape along the width direction Y and the extending direction X.

[0027] The second side portion 21 further comprises a second lower overlapping region 21d, which overlaps with the second lower joining surface portion 52 (described later) in a widthwise view along the width direction Y, and a second lower connecting region 21e, which is the connecting region between the second lower overlapping region 21d and the second non-overlapping region 21b. The second non-overlapping region 21b does not overlap with the second upper joining surface portion 32, nor with the second lower joining surface portion 52, in a widthwise view. The second non-overlapping region 21b is positioned above the second lower overlapping region 21d. The second lower connection region 21e is located between the second lower overlapping region 21d and the second non-overlapping region 21b. The second lower overlapping region 21d is formed in a plate shape along the vertical direction Z and the extending direction X. The second non-overlapping region 21b is located inside the second lower overlapping region 21d in the width direction Y (first side Y1 in the width direction). The second lower connection region 21e is formed from the upper end of the second lower overlapping region 21d.

[0028] The second lower connection region 21e is provided with a second lower support portion 27 which is formed such that it extends toward the first side Y1 in the width direction as it extends toward the first side Z1 in the vertical direction. The second lower support portion 27 has a second lower inclined surface 27a which faces downward and is inclined such that it extends toward the first side Y1 in the width direction as it extends toward the upper side (first side Z1 in the vertical direction).

[0029] The first upper projection 12 and the second upper projection 22 are spaced apart in the width direction Y. Furthermore, the first upper projection 12 and the second upper projection 22 are positioned opposite each other in the width direction Y. Similarly, the first lower projection 18 and the second lower projection 28 are spaced apart in the width direction Y. Furthermore, the first lower projection 18 and the second lower projection 28 are positioned opposite each other in the width direction Y.

[0030] As shown in Figures 3 and 4, an upper opening 6 is formed between the first member 10 and the second member 20 in the width direction Y, opening toward the first side Z1 in the vertical direction and extending along the extension direction X. In this embodiment, the upper opening 6 is formed between the first upper projection 12 and the second upper projection 22 in the width direction Y. In this example, the upper opening 6 is an opening that runs along the width direction Y and the extension direction X and penetrates in the vertical direction Z. The upper opening 6 is formed over the entire extension direction X of the beam 1.

[0031] A lower opening 9 is formed between the first member 10 and the second member 20 in the width direction Y, opening downwards and extending along the extension direction X. In this embodiment, the lower opening 9 is formed between the first lower projection 18 and the second lower projection 28 in the width direction Y. In this example, the lower opening 9 is an opening that extends along the width direction Y and the extension direction X and penetrates in the vertical direction Z. The lower opening 9 is formed over the entire extension direction X of the beam 1. The width Y dimension of the upper opening 6 and the lower opening 9 is set to a size that allows the locking member 41, which is provided at the tip of the relay member 4, to be inserted in a specified state. The specific configuration of the locking member 41 will be described later.

[0032] In the example shown in Figure 3, the first upper overlapping region 11a and the first lower overlapping region 11d of the first side surface 11 are located at the same position in the width direction Y. The first non-overlapping region 11b is formed to be recessed in the second width direction Y2 relative to the first upper overlapping region 11a and the first lower overlapping region 11d. Similarly, the second upper overlapping region 21a and the second lower overlapping region 21d of the second side surface 21 are located at the same position in the width direction Y. The second non-overlapping region 21b is formed to be recessed in the first width direction Y1 relative to the second upper overlapping region 21a and the second lower overlapping region 21d. The first non-overlapping region 11b and the second non-overlapping region 21b are positioned at the same vertical position Z relative to each other.

[0033] As shown in Figure 3, the upper connecting member 3 comprises a first upper joining surface portion 31 joined to the surface of the first side portion 11 facing the second side Y2 in the width direction, a second upper joining surface portion 32 joined to the surface of the second side portion 21 facing the first side Y1 in the width direction, and an upper connecting portion 33 that connects the first upper joining surface portion 31 and the second upper joining surface portion 32 in the width direction Y. The first upper joining surface portion 31, the second upper joining surface portion 32, and the upper connecting portion 33 are integrally formed. However, they do not necessarily have to be integrally formed; for example, they may be formed by connecting them by welding or the like. In this example, the upper connecting member 3 is formed over the entire area of ​​the beam 1 in the extending direction X.

[0034] The first upper joint surface portion 31 is formed to align with the extending direction X and the vertical direction Z. The end of the first upper joint surface portion 31 on the first vertical side Z1 abuts against the first upper projection portion 12, and the end of the first upper joint surface portion 31 on the second vertical side Z2 abuts against the first upper support portion 16. The first upper joint surface portion 31 is formed in a plate shape along the vertical direction Z and the extending direction X. The first upper joint surface portion 31 is positioned to abut against the first upper overlapping region 11a of the first side surface portion 11 from the second width direction Y2. In this example, the upper end of the first upper joint surface portion 31 abuts against the end of the first width direction Y1 of the first upper projection portion 12 from below. The lower end of the first upper joint surface portion 31 abuts against the first upper inclined surface 16a of the first upper support portion 16.

[0035] The second upper joining surface portion 32 is formed to align with the extending direction X and the vertical direction Z. The end of the second upper joining surface portion 32 on the first side Z1 in the vertical direction abuts against the second upper projection portion 22, and the end of the second side Z2 in the vertical direction abuts against the second upper support portion 26. The second upper joining surface portion 32 is formed in a plate shape along the vertical direction Z and the extending direction X. The second upper joining surface portion 32 is positioned to abut against the second upper overlapping region 21a of the second side portion 21 from the first side Y1 in the width direction. The upper end of the second upper joining surface portion 32 abuts against the end of the second side Y2 in the width direction of the second upper projection portion 22 from below. The lower end of the second upper joining surface portion 32 abuts against the second upper inclined surface 26a of the second upper support portion 26.

[0036] The upper connecting portion 33 is formed to connect the end of the second side Z2 in the vertical direction of the first upper joining surface portion 31 and the end of the second side Z2 in the vertical direction of the second upper joining surface portion 32 to the width direction Y. The upper connecting portion 33 is formed in a plate shape along the width direction Y and the extension direction X. The upper connecting portion 33 is formed over the entire extension direction X of the beam 1. In this example, the upper connecting portion 33 overlaps with the first upper support portion 16 and the second upper support portion 26 when viewed in the width direction.

[0037] In this embodiment, the upper connecting member 3 includes a first upper reinforcing portion 34 that contacts the first upper projection 12 from the second side Z2 in the vertical direction and is arranged along the extending direction X, and a second upper reinforcing portion 35 that contacts the second upper projection 22 from the second side Z2 in the vertical direction and is arranged along the extending direction X. The first upper reinforcing portion 34 is bent from the upper end (end on the first side Z1 in the vertical direction) of the first upper joining surface portion 31 toward the inside in the width direction Y (second side Y2 in the width direction). The first upper reinforcing portion 34 is formed in a plate shape along the width direction Y and the extending direction X. The first upper reinforcing portion 34 contacts the entire area of ​​the extending direction X of the surface facing downwards of the first upper projection 12.

[0038] The second upper reinforcing portion 35 is bent from the upper end (the end on the first side Z1 in the vertical direction) of the second upper joining surface portion 32 toward the inside in the width direction Y (the first side Y1 in the width direction). The second upper reinforcing portion 35 is formed in a plate shape along the width direction Y and the extension direction X. The second upper reinforcing portion 35 abuts against the entire area of ​​the extension direction X of the surface facing downwards of the second upper protrusion portion 22.

[0039] In this embodiment, the beam 1 further includes a lower connecting member 5 that connects the first member 10 and the second member 20 in the width direction Y below the upper connecting member 3. The lower connecting member 5 connects the first member 10 and the second member 20 at a position below their central region in the vertical direction Z. The lower connecting member 5 includes a first lower joining surface portion 51 joined to the surface of the first side portion 11 facing the second side Y2 in the width direction, a second lower joining surface portion 52 joined to the surface of the second side portion 21 facing the first side Y1 in the width direction, and a lower connecting portion 53 that connects the first lower joining surface portion 51 and the second lower joining surface portion 52 in the width direction Y. The first lower joining surface portion 51, the second lower joining surface portion 52, and the lower connecting portion 53 are integrally formed. However, they do not necessarily have to be integrally formed, and may be formed by connecting them, for example, by welding. In this example, the lower connecting member 5 is formed over the entire length of the beam 1 in the extending direction X.

[0040] The first lower joint surface portion 51 is formed to align with the extending direction X and the vertical direction Z. The end of the first lower joint surface portion 51 on the second vertical side Z2 abuts against the first lower projection portion 18, and the end of the first vertical side Z1 abuts against the first lower support portion 17. The first lower joint surface portion 51 is formed in a plate shape along the vertical direction Z and the extending direction X. The first lower joint surface portion 51 is positioned to abut against the first lower overlapping region 11d of the first side surface portion 11 from the second width direction Y2. In this example, the lower end of the first lower joint surface portion 51 abuts against the end of the first width direction Y1 of the first lower projection portion 18 from above. The upper end of the first lower joint surface portion 51 abuts against the first lower inclined surface 17a of the first lower support portion 17.

[0041] The second lower joint surface portion 52 is formed to align with the extending direction X and the vertical direction Z. The end of the second lower joint surface portion 52 on the second vertical side Z2 abuts against the second lower projection portion 28, and the end of the second lower joint surface portion 52 on the first vertical side Z1 abuts against the second lower support portion 27. The second lower joint surface portion 52 is formed in a plate shape along the vertical direction Z and the extending direction X. The second lower joint surface portion 52 is positioned to abut against the second lower overlapping region 21d of the second side surface portion 21 from the first width direction Y1. The lower end of the second lower joint surface portion 52 abuts against the end of the second width direction Y2 of the second lower projection portion 28 from above. The upper end of the second lower joint surface portion 52 abuts against the second lower inclined surface 27a of the second lower support portion 27.

[0042] The lower connecting portion 53 is formed to connect the end of the first side Z1 in the vertical direction of the first lower joining surface portion 51 and the end of the first side Z1 in the vertical direction of the second lower joining surface portion 52 in the vertical direction in the width direction Y. The lower connecting portion 53 is formed in a plate shape along the width direction Y and the extension direction X. The lower connecting portion 53 is formed over the entire extension direction X of the beam 1. In this example, the lower connecting portion 53 overlaps the first lower support portion 17 and the second lower support portion 27 when viewed in the width direction.

[0043] In this embodiment, the lower connecting member 5 includes a first lower reinforcing portion 54 that contacts the first lower projection 18 from the first side Z1 in the vertical direction and is arranged along the extending direction X, and a second lower reinforcing portion 55 that contacts the second lower projection 28 from the first side Z1 in the vertical direction and is arranged along the extending direction X. The first lower reinforcing portion 54 is bent from the lower end (end of the second side Z2 in the vertical direction) of the first lower joining surface portion 51 toward the inside in the width direction Y (second side Y2 in the width direction). The first lower reinforcing portion 54 is formed in a plate shape along the width direction Y and the extending direction X. The first lower reinforcing portion 54 contacts the entire area of ​​the extending direction X of the surface facing upward of the first lower projection 18.

[0044] The second lower reinforcing portion 55 is formed by bending from the lower end of the second lower joining surface portion 52 (the end on the second side Z2 in the vertical direction) toward the inside in the width direction Y (the first side Y1 in the width direction). The second lower reinforcing portion 55 is formed in a plate shape along the width direction Y and the extension direction X. The second lower reinforcing portion 55 abuts against the entire area of ​​the extension direction X of the surface facing upward of the second lower protrusion portion 28.

[0045] In this example, the connection between the first member 10 and the connecting members (upper connecting member 3, lower connecting member 5) is performed by fastening members 30. Similarly, the connection between the second member 20 and the connecting members (upper connecting member 3, lower connecting member 5) is also performed by fastening members 30. First through holes 19 are formed in each of the first upper overlapping region 11a and the first lower overlapping region 11d at predetermined intervals along the extending direction X. Similarly, second through holes 29 are formed in each of the second upper overlapping region 21a and the second lower overlapping region 21d at predetermined intervals along the extending direction X. In addition, a plurality of third through holes 37 are formed in each of the first upper joining surface portion 31, the second upper joining surface portion 32, the first lower joining surface portion 51, and the second lower joining surface portion 52. The plurality of third through holes 37 in the first upper joining surface portion 31 are formed at positions corresponding to the plurality of first through holes 19. The multiple third through holes 37 in the second upper joining surface portion 32 are formed at positions corresponding to the multiple second through holes 29. A fastening member 30 is inserted through the corresponding first through hole 19 and third through hole 37. Similarly, a fastening member 30 is inserted through the corresponding second through hole 29 and third through hole 37. In this example, the fastening member 30 is a rivet, but it is not limited to this. For example, the fastening member 30 may be a bolt and nut, etc. It may also be joined by welding. Here, for example, the gap between the first through hole 19 and the second through hole 29 and the fastening member 30 inserted through these through holes can be made larger than the gap between the third through hole 37 and the fastening member 30 inserted through the third through hole 37.

[0046] As shown in Figure 3, when the first member 10 and the second member 20 are connected to the upper connecting member 3 and the lower connecting member 5 by the fastening member 30, the upper reinforcing portion (first upper reinforcing portion 34, second upper reinforcing portion 35) abuts against the upper protrusion (first upper protrusion 12, second upper protrusion 22) from below, and the lower ends of the upper joining surface portion (first upper joining surface portion 31, second upper joining surface portion 32) abut against the upper support portion (first upper support portion 16, second upper support portion 26) from above. Furthermore, the upper joining surface portion (first upper joining surface portion 31, second upper joining surface portion 32) is joined to the upper overlapping region (first upper overlapping region 11a, second upper overlapping region 21a) from the inside in the width direction Y. This restricts the upper connecting member 3 from moving at least in the vertical Z direction and width Y direction relative to the first member 10 and the second member 20, thereby enabling a stable connection between the upper parts of the first member 10 and the second member 20.

[0047] Similarly, when the first member 10 and the second member 20 are connected to the upper connecting member 3 and the lower connecting member 5 by the fastening member 30, the lower reinforcing portion (first lower reinforcing portion 54, second lower reinforcing portion 55) abuts against the lower protrusion (first lower protrusion 18, second lower protrusion 28) from above, and the upper ends of the lower joining surfaces (first lower joining surface 51, second lower joining surface 52) abut against the lower support portion (first lower support portion 17, second lower support portion 27) from below. Furthermore, the lower joining surfaces (first lower joining surface 51, second lower joining surface 52) are joined to the lower overlapping region (first lower overlapping region 11d, second lower overlapping region 21d) from the inside in the width direction Y. This restricts the lower connecting member 5 from moving at least in the vertical Z direction and the width Y direction relative to the first member 10 and the second member 20, thereby stably connecting the lower parts of the first member 10 and the second member 20. Furthermore, the shape of the upper connecting portion 33 can be modified so that the end of the first side Y1 in the width direction of the upper connecting portion 33 abuts against the first upper inclined surface 16a, and the end of the second side Y2 in the width direction of the upper connecting portion 33 abuts against the second upper inclined surface 26a. Similarly, the shape of the lower connecting portion 53 can be modified so that the end of the first side Y1 in the width direction of the lower connecting portion 53 abuts against the first lower inclined surface 17a, and the end of the second side Y2 in the width direction of the lower connecting portion 53 abuts against the second lower inclined surface 27a.

[0048] Furthermore, as described above, the protruding parts (first upper protruding part 12, second upper protruding part 22, first lower protruding part 18, second lower protruding part 28) can be reinforced with the corresponding reinforcing parts (first upper reinforcing part 34, second upper reinforcing part 35, first lower reinforcing part 54, second lower reinforcing part 55), so there is no need to increase the thickness in order to make the plate-shaped protruding parts stronger. For this reason, it is easy to reduce the weight of the first member 10 and the second member 20.

[0049] As shown in Figures 4 and 5, the relay member 4 includes a relay body 42 in addition to the locking member 41. Here, the relay body 42 is the main body portion (threaded portion) of a suspension bolt extending in the vertical direction Z. The locking member 41 is provided at the tip of the relay body 42. The locking member 41 is configured to be able to change its position between a locked position and an unlocked position by pivoting around an axis P along the vertical direction Z relative to the relay body 42. Then, as shown in Figure 4, when attaching the relay member 4 to the beam 1, the locking member 41 in the unlocked position is inserted into the opening (the upper opening 6 in the illustrated example), and then the position of the locking member 41 is changed from the unlocked position to the locked position (from the position on the upper side of the paper to the position on the lower side of the paper in the locking member 41 of Figure 4). As a result, the locking member 41 overlaps the protruding portion when viewed from above, so for example, as shown in Figure 5, the beam 1 can be suspended from the support member 7, or the supported member 94 (not shown in Figure 5) can be suspended from the beam 1. Furthermore, by changing the vertical dimension Z of the relay body 42, the suspension position (position in the vertical Z direction) of the beam 1 and the supported member 94 can be adjusted. Moreover, since the upper opening 6 and the lower opening 9 are formed over the entire extension direction X of the beam 1, the relay member 4 can be attached to any position in the extension direction X of the beam 1. This makes it easier to adjust the position in the extension direction X of the beam 1 suspended from above, and the position in the extension direction X of the supported member 94 suspended from the beam 1.

[0050] Furthermore, in this example, as described above, multiple beams 1 are used in the conveying equipment 100. As shown in Figure 6, when multiple beams 1 are connected to each other, a connecting fastener 101 is used. Here, one end of beam 1 in the extending direction X is connected to the side of another beam 1 by the connecting fastener 101. In the illustrated example, the connecting fastener 101 is formed in a shape (in this case, T-shaped) that matches the shape of the connecting portion of the two beams 1. In the illustrated example, the connecting fastener 101 is attached to each beam 1 from above and fixed to each beam 1 by fastening bolts 102 using the upper opening 6. The shape of the connecting fastener 101 can be appropriately changed according to the shape of the connecting portion of the multiple beams 1.

[0051] [Other Embodiments] (1) In the above embodiment, the extending direction X is a direction along the horizontal plane, but is not limited to this. The extending direction X may be a direction inclined with respect to the horizontal plane. In that case, the beam 1 is suspended from above so as to extend in a direction inclined with respect to the horizontal plane. In addition, in the conveying equipment 100, among the multiple beams 1, there may be beams 1 arranged to extend in a direction along the horizontal plane and beams 1 arranged to extend in a direction inclined with respect to the horizontal plane.

[0052] (2) In the above embodiment, a configuration in which both the upper opening 6 and the lower opening 9 are continuously formed over the entire length of the beam 1 in the extending direction X was described as an example, but the embodiment is not limited to this. For example, at least one of the upper opening 6 and the lower opening 9 may be formed intermittently along the extending direction X. In this case, a plurality of openings are formed that open upwards or downwards along the extending direction X.

[0053] (3) In the above embodiment, a configuration in which both an upper opening 6 and a lower opening 9 are formed between the first member 10 and the second member 20 in the width direction Y has been described as an example, but the invention is not limited to this. A configuration in which only one of the upper opening 6 and the lower opening 9 is formed between the first member 10 and the second member 20 in the width direction Y is also possible. Furthermore, on the side of the first member 10 and the second member 20 in which such openings are not formed, the first member 10 and the second member 20 may be directly connected without the use of a connecting member (upper connecting member 3 or lower connecting member 5), thereby forming them integrally.

[0054] (4) In the above embodiment, a configuration in which the first member 10 has a first upper projection 12 and a first lower projection 18, and the second member 20 has a second upper projection 22 and a second lower projection 28 was described as an example, but the invention is not limited to this. The first member 10 and the second member 20 do not each have to have such projections. In addition, the beam 1 may be configured to have only one of the first upper projection 12 and the second upper projection 22, or the first lower projection 18 and the second lower projection 28. In addition, in the above embodiment, a configuration in which the first upper reinforcing part 34, the second upper reinforcing part 35, the first lower reinforcing part 54, and the second lower reinforcing part 55 are provided in correspondence with each projection was described as an example, but the invention is not limited to this. These reinforcing parts are not necessarily required.

[0055] (5) In the above embodiment, the beam 1 was described as having both an upper connecting member 3 and a lower connecting member 5 as an example, but it is not limited to this. The beam 1 may also have a configuration that includes either the upper connecting member 3 or the lower connecting member 5.

[0056] (6) In the above embodiment, the first side portion 11 is provided with a first upper connection region 11c and a first lower connection region 11e, and the second side portion 21 is provided with a second upper connection region 21c and a second lower connection region 21e as an example, but the embodiment is not limited to this. As shown in Figure 7, the first side portion 11 is provided with a first upper connection region 11c and a first lower connection region 11e, and the second side portion 21 is not provided with a second upper connection region 21c and a second lower connection region 21e. In this case, the second non-overlapping region 21b is directly connected to the second upper overlapping region 21a and the second lower overlapping region 21d, and the entire second side portion 21 may be formed in a plate shape along the vertical direction Z and the extending direction X. Also, as shown in Figure 8, the first side portion 11 is not provided with a first upper connection region 11c and a first lower connection region 11e. In this case, the first non-overlapping region 11b is directly connected to the first upper overlapping region 11a and the first lower overlapping region 11d, and the entire first side portion 11 may be formed in a plate shape along the vertical direction Z and the extending direction X.

[0057] (7) In the above embodiment, the first non-overlapping region 11b is located inside the width direction Y relative to the first upper connection region 11c and the first lower connection region 11e, and the second non-overlapping region 21b is located inside the width direction Y relative to the second upper overlapping region 21a and the second lower overlapping region 21d. However, the embodiment is not limited to this configuration. For example, the first non-overlapping region 11b may be located outside the width direction Y relative to the first upper connection region 11c and the first lower connection region 11e. Similarly, the second non-overlapping region 21b may be located outside the width direction Y relative to the second upper overlapping region 21a and the second lower overlapping region 21d. Also, for example, as shown in Figure 9, the central region in the vertical direction Z of at least one of the first non-overlapping region 11b and the second non-overlapping region 21b may be formed in such a shape that it bulges outwards in the width direction Y relative to both ends in the vertical direction Z.

[0058] (8) In the above embodiment, a configuration in which both the upper connecting member 3 and the lower connecting member 5 are formed (extend) continuously along the extending direction X was described as an example, but the invention is not limited to this. For example, at least one of the upper connecting member 3 and the lower connecting member 5 may be formed intermittently. For example, a plurality of intermittently formed connecting members may be arranged between a first member 10 and a second member 20 that extend in the extending direction X, and each connecting member may connect the first member 10 and the second member 20.

[0059] (9) The configurations disclosed in each of the embodiments described above can be applied in combination with configurations disclosed in other embodiments (including combinations of embodiments described as other embodiments), as long as no inconsistencies arise. With regard to other configurations, the embodiments disclosed herein are merely illustrative in all respects. Therefore, various modifications can be made as appropriate without departing from the spirit of this disclosure.

[0060] [Summary of the above embodiments] The following is a summary of the beams described above.

[0061] The beam relating to this disclosure is a beam that is suspended from above and arranged to extend along the direction of extension, In a vertical view, the direction perpendicular to the extension direction is defined as the width direction, one side in the width direction is defined as the first width direction side, the other side in the width direction is defined as the second width direction side, one side in the vertical direction is defined as the first vertical direction side, and the opposite side is defined as the second vertical direction side. The device comprises a first member, a second member positioned on the second side in the width direction relative to the first member so as to face the first member in the width direction, and a connecting member connecting the first member and the second member in the width direction. The first member has a first side surface portion that is aligned with the extending direction and the vertical direction, The second member has a second side portion that is aligned with the extending direction and the vertical direction, The connecting member comprises a first joining surface portion joined to the surface of the first side portion facing the second side in the width direction, a second joining surface portion joined to the surface of the second side portion facing the first side in the width direction, and a connecting portion that connects the first joining surface portion and the second joining surface portion in the width direction. An opening is formed between the first member and the second member in the width direction, which opens toward the first side in the vertical direction and extends along the extending direction.

[0062] In this configuration, an opening is formed between the first and second members in the width direction, opening toward the first side in the vertical direction, and extending along the extension direction. Therefore, by utilizing this opening, it is easy to adjust the position of the member connected to the beam in the extension direction relative to the beam. Furthermore, with the first and second members connected by a connecting member, the first side surface of the first member and the first joining surface of the connecting member are joined, and the second side surface of the second member and the second joining surface of the connecting member are joined. This allows the first and second members to be properly connected, and the first and second side surfaces to be properly reinforced. As a result, it is possible to ensure the strength of the first and second side surfaces without reinforcing the entire first and second members. Therefore, it is easier to reduce the weight while ensuring the strength of the beam. Thus, this configuration makes it possible to reduce weight while ensuring beam strength.

[0063] Here, the first member has a first projection that protrudes from the first end of the first side surface in the vertical direction toward the second side in the width direction and along the extending direction, The second member has a second projection that protrudes from the first end of the second side surface in the vertical direction toward the first side in the width direction and along the extending direction, The first protrusion and the second protrusion are spaced apart in the width direction. Preferably, the opening is formed between the first protrusion and the second protrusion in the width direction.

[0064] According to this configuration, when suspending a beam from a support member above it using the protrusions (first protrusion, second protrusion) arranged on both sides in the width direction of the opening, it is possible to easily connect the beam to the support member, and when suspending a supported member from the beam, it is possible to easily connect the beam to the supported member.

[0065] Furthermore, it is preferable that the connecting member comprises a first reinforcing portion that contacts the first protrusion from the second side in the vertical direction and is arranged along the extending direction, and a second reinforcing portion that contacts the second protrusion from the second side in the vertical direction and is arranged along the extending direction.

[0066] According to this configuration, when the beam is suspended from a support member above it, or when a supported member is suspended from the beam, the first and second protrusions, which are prone to loads, can be reinforced by the first and second reinforcing parts. Therefore, even when the beam has the first and second protrusions, it is easy to reduce the weight while ensuring the strength of the beam.

[0067] Furthermore, it is preferable that the first joining surface portion is formed to align with the extending direction and the vertical direction, the second joining surface portion is formed to align with the extending direction and the vertical direction, and the connecting portion is formed to connect the second end of the first joining surface portion in the vertical direction and the second end of the second joining surface portion in the vertical direction in the width direction.

[0068] With this configuration, the connecting portion is positioned on the side furthest from the opening. Therefore, when there are members inserted into the opening along the vertical direction to suspend the beam from a support member above it, or to suspend a supported member from the beam, interference between the member and the connecting member can be easily avoided.

[0069] Furthermore, the first side portion includes an overlapping region which is the portion that overlaps with the first joint surface portion when viewed in the width direction along the width direction, a non-overlapping region which is the portion that does not overlap with the first joint surface portion when viewed in the width direction, and a connecting region to which the overlapping region and the non-overlapping region are connected. The connection region includes a first support portion formed such that it extends toward the second width direction as it extends toward the second vertical direction, Preferably, the first end of the first joint surface portion in the vertical direction abuts against the first protrusion, and the second end of the first joint surface portion in the vertical direction abuts against the first support portion.

[0070] In this configuration, the first joining surface is joined to the first side surface, and the first end of the first joining surface in the vertical direction abuts against the first protrusion, while the second end of the first joining surface in the vertical direction abuts against the first support. This restricts the movement of the first joining surface relative to the first side surface in the vertical direction, and allows the connecting member to be held in an appropriate position.

[0071] Furthermore, the first side in the vertical direction shall be defined as the upper side in the vertical direction, the second side in the vertical direction shall be defined as the lower side in the vertical direction, the connecting member shall be defined as the upper connecting member, the first joining surface portion shall be defined as the first upper joining surface portion, the second joining surface portion shall be defined as the second upper joining surface portion, the connection portion shall be defined as the upper connection portion, and the opening shall be defined as the upper opening. A lower connecting member is further provided below the upper connecting member, connecting the first member and the second member in the width direction. The lower connecting member comprises a first lower connecting surface portion joined to the surface of the first side portion facing the second side in the width direction, a second lower connecting surface portion joined to the surface of the second side portion facing the first side in the width direction, and a lower connecting portion that connects the first lower connecting surface portion and the second lower connecting surface portion in the width direction. Preferably, a lower opening is formed between the first member and the second member in the width direction, which opens downward and extends along the extension direction.

[0072] In this configuration, since an upper opening and a lower opening are formed between the first member and the second member in the width direction, it becomes easy to suspend the beam from a support member above it using these openings, and to suspend and support a member to be supported by the beam. Furthermore, in this case, it is easy to adjust the position of both the member connected to the upper opening of the beam and the member connected to the lower opening of the beam in the direction of extension relative to the beam.

[0073] The beam relating to this disclosure only needs to be able to achieve at least one of the effects described above. [Explanation of symbols]

[0074] 1: Beam 3: Upper connecting member (connecting member) 6: Upper opening (opening) 9: Lower opening 10: First member 11:First side part 11a: 1st upper overlapping area (overlapping area) 11b: 1st non-overlapping area (non-overlapping area) 11c: First upper connection region (connection region) 12:First upper protrusion (first protrusion) 16:First upper support part (first support part) 20: Second member 21:Second side part 22: Second upper protrusion (second protrusion) 31: First upper joint surface part (first joint surface part) 32: Second upper joint surface part (second joint surface part) 33: Upper connection part (connection part) 34: First upper reinforcement section (first reinforcement section) 35: Second upper reinforcement section (second reinforcement section) 51: 1st lower joint surface part 52: 2nd lower joint surface part 53: Lower connection part X: Extending direction Y: width direction Y1: First side in the width direction Y2: Second side in the direction of amplitude Z: Up / Down direction Z1: First side in the up / down direction Z2: Second side in the up / down direction

Claims

1. A beam suspended from above and positioned to extend along the direction of extension, In a vertical view, the direction perpendicular to the extension direction is defined as the width direction, one side of the width direction is defined as the first width direction side, the other side of the width direction is defined as the second width direction side, one side of the vertical direction is defined as the first vertical direction side, and the opposite side is defined as the second vertical direction side. The device comprises a first member, a second member positioned on the second side in the width direction relative to the first member so as to face the first member in the width direction, and a connecting member connecting the first member and the second member in the width direction. The first member has a first side surface portion that is aligned with the extending direction and the vertical direction, The second member has a second side surface portion that is aligned with the extending direction and the vertical direction, The connecting member comprises a first joining surface portion joined to the surface of the first side portion facing the second side in the width direction, a second joining surface portion joined to the surface of the second side portion facing the first side in the width direction, and a connecting portion that connects the first joining surface portion and the second joining surface portion in the width direction. An opening is formed between the first member and the second member in the width direction, which opens toward the first side in the vertical direction and extends along the extending direction. The first member has a first projection that protrudes from the first end of the first side surface in the vertical direction toward the second side in the width direction and along the extending direction, The second member has a second projection that protrudes from the first end of the second side surface in the vertical direction toward the first side in the width direction and along the extending direction, The first protrusion and the second protrusion are spaced apart in the width direction. The opening is formed between the first protrusion and the second protrusion in the width direction, The connecting member comprises a first reinforcing portion that contacts the first protrusion from the second side in the vertical direction and is arranged along the extending direction, and a second reinforcing portion that contacts the second protrusion from the second side in the vertical direction and is arranged along the extending direction. The first joining surface portion is formed to be aligned with the extending direction and the vertical direction, The second joining surface portion is formed to align with the extending direction and the vertical direction, The connecting portion is formed to connect the second end of the first joining surface in the vertical direction and the second end of the second joining surface in the vertical direction in the width direction. A beam in which the first reinforcing portion, the first joining surface portion, the connecting portion, the second reinforcing portion, and the second joining surface portion are integrally formed.

2. A beam suspended from above via a relay member and arranged to extend along the direction of extension, In a vertical view, the direction perpendicular to the extension direction is defined as the width direction, one side of the width direction is defined as the first width direction side, the other side of the width direction is defined as the second width direction side, one side of the vertical direction is defined as the first vertical direction side, and the opposite side is defined as the second vertical direction side. The device comprises a first member, a second member positioned on the second side in the width direction relative to the first member so as to face the first member in the width direction, and a connecting member connecting the first member and the second member in the width direction. The first member has a first side surface portion that is aligned with the extending direction and the vertical direction, The second member has a second side surface portion that is aligned with the extending direction and the vertical direction, The connecting member comprises a first joining surface portion joined to the surface of the first side portion facing the second side in the width direction, a second joining surface portion joined to the surface of the second side portion facing the first side in the width direction, and a connecting portion that connects the first joining surface portion and the second joining surface portion in the width direction. An opening is formed between the first member and the second member in the width direction, which opens toward the first side in the vertical direction and extends along the extending direction. The first member has a first projection that protrudes from the first end of the first side surface in the vertical direction toward the second side in the width direction and along the extending direction, The second member has a second projection that protrudes from the first end of the second side surface in the vertical direction toward the first side in the width direction and along the extending direction, The first protrusion and the second protrusion are spaced apart in the width direction. The opening is formed between the first protrusion and the second protrusion in the width direction and is set to a size that allows the locking member provided on the relay member to be inserted through it. The connecting member comprises a first reinforcing portion that contacts the first protrusion from the second side in the vertical direction and is arranged along the extending direction, and a second reinforcing portion that contacts the second protrusion from the second side in the vertical direction and is arranged along the extending direction. A beam, wherein each of the first and second reinforcing portions is formed to extend along the extending direction and the width direction, and has a contact surface that abuts against the locking member inserted through the opening from the first side in the vertical direction.

3. A beam suspended from above and positioned to extend along the direction of extension, In a vertical view, the direction perpendicular to the extension direction is defined as the width direction, one side of the width direction is defined as the first width direction side, the other side of the width direction is defined as the second width direction side, one side of the vertical direction is defined as the first vertical direction side, and the opposite side is defined as the second vertical direction side. The device comprises a first member, a second member positioned on the second side in the width direction relative to the first member so as to face the first member in the width direction, and a connecting member connecting the first member and the second member in the width direction. The first member has a first side surface portion that is aligned with the extending direction and the vertical direction, The second member has a second side surface portion that is aligned with the extending direction and the vertical direction, The connecting member comprises a first joining surface portion joined to the surface of the first side portion facing the second side in the width direction, a second joining surface portion joined to the surface of the second side portion facing the first side in the width direction, and a connecting portion that connects the first joining surface portion and the second joining surface portion in the width direction. An opening is formed between the first member and the second member in the width direction, which opens toward the first side in the vertical direction and extends along the extending direction. The first member has a first projection that protrudes from the first end of the first side surface in the vertical direction toward the second side in the width direction and along the extending direction, The second member has a second projection that protrudes from the first end of the second side surface in the vertical direction toward the first side in the width direction and along the extending direction, The first protrusion and the second protrusion are spaced apart in the width direction. The opening is formed between the first protrusion and the second protrusion in the width direction, The first side portion comprises an overlapping region which overlaps with the first joint surface portion in a widthwise view along the width direction, a non-overlapping region which does not overlap with the first joint surface portion in a widthwise view, and a connecting region to which the overlapping region and the non-overlapping region are connected. The connection region includes a first support portion formed such that it extends toward the second side in the width direction as it extends toward the second side in the vertical direction, A beam in which the first end of the first joining surface portion in the vertical direction abuts against the first protruding portion, and the second end of the first joining surface portion in the vertical direction abuts against the first support portion.

4. The beam according to claim 3, wherein the connecting member comprises a first reinforcing portion that contacts the first protrusion from the second side in the vertical direction and is arranged along the extending direction, and a second reinforcing portion that contacts the second protrusion from the second side in the vertical direction and is arranged along the extending direction.

5. The beam according to claim 3, wherein the first joining surface portion is formed to align with the extending direction and the vertical direction, the second joining surface portion is formed to align with the extending direction and the vertical direction, and the connecting portion is formed to connect the second end of the first joining surface portion in the vertical direction and the second end of the second joining surface portion in the vertical direction in the width direction.

6. The first side in the vertical direction shall be the upper side in the vertical direction, the second side in the vertical direction shall be the lower side in the vertical direction, the connecting member shall be the upper connecting member, the first joining surface portion shall be the first upper joining surface portion, the second joining surface portion shall be the second upper joining surface portion, the connection portion shall be the upper connection portion, and the opening shall be the upper opening. A lower connecting member is further provided below the upper connecting member, connecting the first member and the second member in the width direction. The lower connecting member comprises a first lower connecting surface portion joined to the surface of the first side portion facing the second side in the width direction, a second lower connecting surface portion joined to the surface of the second side portion facing the first side in the width direction, and a lower connecting portion that connects the first lower connecting surface portion and the second lower connecting surface portion in the width direction. The beam according to any one of claims 1 to 5, wherein a lower opening is formed between the first member and the second member in the width direction, the lower opening opening toward the downward side and extending along the extension direction.

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