Frame and electrical panel

Abstract

To realize a frame provided with a connecting member capable of saving resources.SOLUTION: A frame includes a first strength member 40 having a first plate 41 and a second plate 42 extending in a first direction X, a second strength member 70 having a first plate 71 and a second plate 72 extending in a second direction Y, a third strength member 20 having a first plate 21 and a second plate 22 extending in a third direction Z, and a corner connecting member 100 that connects the first strength member 40, the second strength member 70, and the third strength member 20, and the corner connecting member 100 includes a first plate 101 connected to the second strength member 70 and the third strength member 20, a second plate 102 connected to the first strength member 40 and the third strength member 20, a third plate 103 connected to the second strength member 70, and a fourth plate 104 connected to the first strength member 40. A slit 105 extending in the second direction Y is formed between the third plate 103 and the fourth plate 104 of the corner connecting member 100.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to a frame and an electrical panel. [Background technology]

[0002] For example, there is a housing capable of housing electrical equipment such as a switchboard (see, for example, Patent Document 1). The housing described in Patent Document 1 includes left and right side panels, a floor panel, and a top panel. In this housing, corner fittings are attached to the inside corners to join the side panels and the floor panel. The corner fittings have multiple joint surfaces that are perpendicular to each other. The thickness of the portion having the joint surface that is joined to the floor panel is thicker than the thickness of the portion having the joint surface that is joined to the side panel. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2015 / 170426 Summary of the Invention [Problem to be solved by the invention]

[0004] In the corner fitting described in Patent Document 1, a plurality of plate-like portions are overlapped to form a portion with a thick plate thickness. Therefore, with the corner fitting described in Patent Document 1, material is wasted and it is not possible to conserve resources. [Means for solving the problem]

[0005] The frame of the present disclosure defines three mutually perpendicular directions as a first direction, a second direction, and a third direction, and includes a first strength member having a first plate and a second plate extending in the first direction and having an L-shaped cross section intersecting the first direction, a second strength member having a first plate and a second plate extending in the second direction and having an L-shaped cross section intersecting the second direction, a third strength member having a first plate and a second plate extending in a third direction and having an L-shaped cross section intersecting the third direction, an end of the first strength member in the first direction, an end of the second strength member in the second direction, and a third strength member. and a corner connecting material connecting the ends in three directions, the corner connecting material having a first plate whose thickness direction is a first direction and is connected to the second strength member and the third strength member, a second plate whose thickness direction is a second direction and is connected to the first strength member and the third strength member, a third plate whose thickness direction is a third direction and is connected to the second strength member, and a fourth plate whose thickness direction is the third direction and is connected to the first strength member, and a slit extending in the second direction is formed between the third plate and the fourth plate of the corner connecting material.

[0006] The electrical panel of the present disclosure comprises a frame and an electrical device fixed to the frame. [Brief description of the drawings]

[0007] [Figure 1] FIG. 2 is a perspective view showing a frame according to the first embodiment. [Diagram 2] FIG. [Diagram 3] FIG. 2 is a perspective view showing a corner portion where a pillar and a beam intersect. [Figure 4] FIG. 2 is an exploded perspective view of a corner portion where a pillar and a beam intersect. [Diagram 5] FIG. [Figure 6] FIG. [Figure 7] FIG. 13 is a schematic diagram showing the arrangement of corner connectors. [Figure 8] FIG. 2 is an exploded perspective view showing a connecting portion where a pillar and a beam intersect. [Figure 9] FIG. 2 is a perspective view showing a first intermediate connecting material. [Figure 10] FIG. 4 is a perspective view showing a second intermediate connecting material. [Figure 11] FIG. [Figure 12] FIG. 11 is a perspective view showing a corner portion where a pillar and a beam of a frame according to a second embodiment intersect. [Figure 13] FIG. 11 is an exploded perspective view showing a corner portion where a pillar and a beam of a frame according to a second embodiment intersect. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. Note that the dimensions and scale of each part in the drawings are appropriately different from the actual ones. In addition, the embodiment described below is a preferred specific example of the present disclosure. Therefore, various technically preferable limitations are attached to this embodiment. However, the scope of the present disclosure is not limited to these forms unless otherwise specified in the following description to limit the present disclosure.

[0009] In the following description, the three mutually intersecting directions may be described as the X-axis direction, the Y-axis direction, and the Z-axis direction. The X-axis direction includes the X1 direction and the X2 direction, which are opposite directions. The X-axis direction is an example of a first direction. The Y-axis direction includes the Y1 direction and the Y2 direction, which are opposite directions. The Y-axis direction is an example of a second direction. The Z-axis direction includes the Z1 direction and the Z2 direction, which are opposite directions. The Z1 direction is a downward direction, and the Z2 direction is an upward direction. The Z1 direction is an example of a third direction. In addition, in this specification, the terms "upper" and "lower" are used. "Up" and "lower" correspond to "upper" and "lower" in the normal use state of the frame 10.

[0010] Fig. 1 is a perspective view showing a frame 10 according to the first embodiment. Fig. 2 is a front view showing the frame 10. The frame 10 shown in Figs. 1 and 2 is, for example, a frame of an electrical board 1. The electrical board 1 includes the frame 10 and electrical equipment 2 supported by the frame 10. The electrical board 1 is, for example, a distribution board. The electrical board 1 is not limited to a distribution board and may be another type of electrical board.

[0011] The frame 10 comprises a number of pillars 20, 30 and a number of beams 40, 50, 60, 70. The pillars 20, 30 are strength members extending in the Z-axis direction. The beams 40, 50, 60 are strength members extending in the X-axis direction. The beam 70 is a strength member extending in the Y-axis direction. The beam 40 is an example of a first strength member. The beam 70 is an example of a second strength member. The pillar 20 is an example of a third strength member. The pillar 30 is an example of a fourth strength member. The beam 50 is an example of a fifth strength member. The beam 60 is an example of a sixth strength member.

[0012] The frame 10 includes, for example, four pillars 20. The pillars 20 are disposed corresponding to the positions of the four corner portions C1 of the frame 10 in a plan view. The pillars 20 are spaced apart from one another in the X-axis direction when viewed from the Y-axis direction. The pillars 20 are spaced apart from one another in the Y-axis direction when viewed from the X-axis direction.

[0013] The frame 10 includes, for example, four beams 40. When viewed from the Y-axis direction, the beams 40 extend in the X-axis direction between the pillars 20. When viewed from the Y-axis direction, the beams 40 are spaced apart from one another in the Z-axis direction. The beam 40 arranged on the upper side is connected to the upper end 20a of the pillar 20. The beam 40 arranged on the lower side is connected to the lower end 20b of the pillar 20. The upper end 20a is an end in the Z2 direction, and the lower end 20b is an end in the Z1 direction. When viewed from the Y-axis direction, the pillars 20 and the beams 40 are arranged to form a rectangle. In the Y-axis direction, the beams 40 are arranged to be spaced apart from one another.

[0014] The frame 10 includes, for example, six beams 70. Three beams 70 are arranged on the upper side and three on the lower side. The beams 70 are spaced apart from each other in the X-axis direction in a plan view. The beams 70 are spaced apart from each other in the Z-axis direction when viewed from the X-axis direction. Of the beams 70 arranged on the upper side, the beams 70 arranged on the outer side in the X-axis direction are connected to the upper end 20a of the pillar 20. Of the beams 70 arranged on the lower side, the beams 70 arranged on the outer side in the X-axis direction are connected to the lower end 20b of the pillar 20. The pillars 20 and the beams 70 are arranged to form a rectangle when viewed from the X-axis direction. The beams 40 and the beams 70 are arranged to form a rectangle when viewed from a plan view. A part of the beams 70 is arranged in the center in the X-axis direction.

[0015] The frame 10 includes, for example, four pillars 30. The pillars 30 are connected to an upper beam 40 and a lower beam 40. Some of the pillars 30 are disposed in the center of the frame 10 in the X-axis direction. Some of the pillars 30 are disposed in the X2 direction of the pillars 30 disposed in the center in the X-axis direction.

[0016] The frame 10 includes, for example, four beams 50. The beams 50 are connected to columns 30 spaced apart in the X-axis direction. Two of the beams 50 arranged at the top are disposed close to the upper beam 40. Two of the beams 50 arranged at the bottom are disposed close to the lower beam 40.

[0017] The frame 10 includes, for example, eight beams 60. The beams 60 are connected to the columns 20 and 30. The beams 60 arranged in the X1 direction of the columns 30 are longer than the beams 60 arranged in the X2 direction of the columns 30. The beams 60 are arranged at a plurality of different positions in the Z-axis direction.

[0018] The upper beam 60 is disposed near the center in the Z-axis direction of the frame 10. The lower beam 60 is disposed at a position close to the lower beam 40 in the X-axis direction.

[0019] FIG. 3 is a perspective view showing a corner portion C1 where the pillar 20 and the beams 40, 70 intersect. FIG. 4 is an exploded perspective view showing the corner portion C1 where the pillar 20 and the beams 40, 70 intersect. As shown in FIG. 3 and FIG. 4, the pillar 20 has a first plate 21 and a second plate 22 extending in the Z-axis direction. The plate thickness direction of the first plate 21 is along the Y-axis direction. The plate thickness direction of the second plate 22 is along the X-axis direction. The first plate 21 and the second plate 22 are arranged to form an L shape when viewed from the Z-axis direction. The pillar 20 is formed by bending a single plate material. The second plate 22 protrudes from the first plate 21 in the Y1 direction. The first plate 21 and the second plate 22 are provided with through holes 155 for rivets that penetrate in the plate thickness direction.

[0020] The beam 40 has a first plate 41 and a second plate 42 extending in the X-axis direction. The plate thickness direction of the first plate 41 is along the Z-axis direction. The plate thickness direction of the second plate 42 is along the Y-axis direction. The first plate 41 and the second plate 42 are arranged to form an L shape when viewed from the X-axis direction. The beam 40 is formed by bending a single plate material. The second plate 42 protrudes from the first plate 41 in the Z1 direction. The first plate 41 and the second plate 42 are provided with through holes 155 for rivets that penetrate in the plate thickness direction.

[0021] The beam 70 has a first plate 71 and a second plate 72 extending in the Y-axis direction. The plate thickness direction of the first plate 71 is along the Z-axis direction. The plate thickness direction of the second plate 72 is along the X-axis direction. The first plate 71 and the second plate 72 are arranged to form an L shape when viewed from the Y-axis direction. The beam 70 is formed by bending a single plate material. The second plate 72 protrudes from the first plate 71 in the Z1 direction. The first plate 71 and the second plate 72 are provided with through holes 155 for rivets that penetrate in the plate thickness direction.

[0022] The frame 10 includes a connecting member 100 that connects the column 20 and the beams 40, 70. The connecting member 110 is an example of a corner connecting member. The connecting member 100 is disposed in the corner portion C1. FIG. 5 is a perspective view showing the connecting member 100. As shown in FIGS. 4 and 5, the connecting member 100 has a first plate 101, a second plate 102, a third plate 103, and a fourth plate 104. The first plate 101, the second plate 102, the third plate 103, and the fourth plate 104 are provided with through holes 155 for rivets that penetrate in the plate thickness direction.

[0023] 4 and 5 correspond to an arrangement for connecting the upper end 20a of the column 20, the end 40a of the beam 40 in the X2 direction, and the end 70a of the beam 70 in the Y2 direction. The connecting material 100 can be arranged in any direction as needed.

[0024] The thickness direction of the first plate 101 is along the X-axis direction. The first plate 101 is L-shaped when viewed from the thickness direction. The first plate 101 includes a first portion 101a joined to the second plate 22 of the column 20 and a second portion 101b joined to the second plate 72 of the beam 70.

[0025] The length of the first portion 101a in the Z-axis direction is longer than the width of the first portion 101a in the Y-axis direction. The second portion 101b is disposed in the Y1 direction of the first portion 101a. The second portion 101b protrudes in the Y1 direction from the first portion 101a.

[0026] The plate thickness direction of the second plate 102 is along the Y-axis direction. The second plate 102 is L-shaped when viewed from the plate thickness direction. The second plate 102 protrudes in the X1 direction from the first plate 101. The second plate 102 includes a first portion 102a joined to the first plate 31 of the column 30 and a second portion 102b joined to the second plate 42 of the beam 40.

[0027] The length of the first portion 102a along the Z-axis direction is longer than the width of the first portion 102a along the X-axis direction. The second portion 102b is disposed in the X1 direction of the first portion 102a. The second portion 102b protrudes from the first portion 102a in the X1 direction.

[0028] The thickness direction of the third plate 103 is along the Z-axis direction. The third plate 103 has a rectangular shape when viewed from the thickness direction. The third plate 103 protrudes from the first plate 101 in the X1 direction. The length of the third plate 103 along the Y-axis direction is longer than the width of the third plate 103 along the X-axis direction. The third plate 103 includes a first portion 103a disposed closer to the second plate 102 in the Y-axis direction, and a second portion 103b joined to the first plate 71 of the beam 70. The second portion 103b is disposed in the Y1 direction of the first portion 103a.

[0029] The thickness direction of the fourth plate 104 is along the Z-axis direction. The fourth plate 104 has a rectangular shape when viewed from the thickness direction. The fourth plate 104 protrudes from the second plate 102 in the Y1 direction. The length of the fourth plate 104 along the X-axis direction may be approximately the same as its width along the Y-axis direction. The fourth plate 104 is joined to the first plate 41 of the beam 40. The fourth plate 104 is disposed in the X1 direction of the first portion 103a of the third plate 103 when viewed from the Z-axis direction.

[0030] The outer surface of the third plate 103 and the outer surface of the fourth plate 104 are disposed at the same position in the Z-axis direction. The same position includes approximately the same position within an allowable range in terms of the performance of the frame 10.

[0031] In the Z-axis direction, a slit 105 is formed between the third plate 103 and the fourth plate 104. In the X-axis direction, the slit 105 extends in the Y-axis direction between the first portion 103a of the third plate 103 and the fourth plate 104. When viewed from the Z-axis direction, the third plate 103 and the fourth plate 104 do not overlap.

[0032] Fig. 6 is a development view of the connecting material 100. The connecting material 100 can be formed by bending a single plate material. In Fig. 6, a first bending line L1 is shown between the first plate 101 and the second plate 102. The second plate 102 is formed by bending along the first bending line L1. In the case shown in Fig. 5, the first bending line L1 is along the Z-axis direction.

[0033] 6, a second folding line L2 is shown between the first plate 101 and the third plate 103. The second folding line L2 is perpendicular to the first folding line L1. The third plate 103 is formed by folding along the second folding line L2. In the case shown in FIG. 5, the second folding line L2 is along the Y-axis direction.

[0034] A third bending line L3 is shown between the second plate 102 and the fourth plate 104. The third bending line L3 exists on an extension of the second bending line L2. The third bending line L3 is arranged so as to be perpendicular to the first bending line L1. The fourth plate 104 is formed by bending along the third bending line L3. In the case shown in FIG. 5, the third bending line L3 is

[0035] Fig. 7 is a schematic diagram showing the arrangement of the connecting material 100. Fig. 7 is a diagram of the frame 10 as viewed from above. The connecting material 100 connected to the upper end portion 20a of the column 30 is shown from above. For the sake of simplicity, the beams 40 and 70 are shown as straight lines. Also, the beam 70 arranged in the center in the X-axis direction is not shown.

[0036] 7, the orientation of the connecting material 100 varies depending on the arrangement. For example, in the connecting material 100 that connects the beam 40 arranged in the Y2 direction and the beam 70 arranged in the X2 direction, the slit 105 extends in the Y-axis direction.

[0037] In the connecting member 100 that connects the beam 70 arranged in the X2 direction and the beam 40 arranged in the Y1 direction, the slit 105 extends in the X-axis direction.

[0038] In the connecting member 100 that connects the beam 40 arranged in the Y1 direction and the beam 70 arranged in the X1 direction, the slit 105 extends in the Y-axis direction.

[0039] In the connecting material 100 connecting the beam 70 arranged in the X1 direction and the beam 40 arranged in the Y2 direction, the slit 105 extends in the X-axis direction. Note that the connecting material 100 also connects the column 20 and the beams 40 and 70 at the lower end portion 20b of the column 20.

[0040] 8 is an exploded perspective view showing a connecting portion J1 where the pillar 30 and the beams 50, 60 intersect. At the connecting portion J1, a middle portion M1 of the pillar 30 and an end portion 50a of the beam 50 are connected. At the connecting portion J2, a middle portion M2 of the pillar 30 and an end portion 60a of the beam 60 are connected. FIG. 8 is an exploded perspective view showing an enlarged view of a main portion B in FIG. 2. In the state shown in FIG. 8, the beam 50 is disposed below the beam 60.

[0041] The pillar 30 has a first plate 31 and a second plate 32 extending in the Z-axis direction. The plate thickness direction of the first plate 31 is along the Y-axis direction. The plate thickness direction of the second plate 32 is along the X-axis direction. The first plate 31 and the second plate 32 are arranged to form an L shape when viewed from the Z-axis direction. The pillar 30 is formed by bending a single plate material. The second plate 32 protrudes from the first plate 31 in the Y1 direction. The first plate 31 and the second plate 32 are provided with through holes 155 for rivets that penetrate in the plate thickness direction.

[0042] The beam 50 has a first plate 51 and a second plate 52 extending in the X-axis direction. The plate thickness direction of the first plate 51 is along the Z-axis direction. The plate thickness direction of the second plate 52 is along the Y-axis direction. The first plate 51 and the second plate 52 are arranged to form an L shape when viewed from the X-axis direction. The beam 50 is formed by bending a single plate material. The second plate 52 protrudes from the first plate 51 in the Z1 direction. The first plate 51 and the second plate 52 are provided with through holes 155 for rivets that penetrate in the plate thickness direction.

[0043] The beam 60 has a first plate 61 and a second plate 62 extending in the X-axis direction. The plate thickness direction of the first plate 61 is along the Z-axis direction. The plate thickness direction of the second plate 62 is along the Y-axis direction. The first plate 61 and the second plate 62 are arranged to form an L shape when viewed from the X-axis direction. The beam 60 is formed by bending a single plate material. The second plate 62 protrudes from the first plate 61 in the Z1 direction. The first plate 61 and the second plate 62 are provided with through holes 155 for rivets that penetrate in the plate thickness direction.

[0044] The frame 10 includes a connecting member 110 that connects the pillar 30 and the beam 50. The connecting member 110 is an example of a first intermediate connecting member. As described above, the first plate 31 of the pillar 30 is disposed so as to protrude in the X1 direction from the second plate 32. The end portion 50a of the beam 50 in the X2 direction is disposed in the X1 direction of the first plate 31 of the pillar 30.

[0045] Fig. 9 is a perspective view showing the connecting material 110. In Fig. 9, the connecting material 110 is illustrated in a direction corresponding to the arrangement of the connecting material 110 in Fig. 8. The arrangement of the connecting material 110 can be changed depending on the arrangement of the columns 30 and beams 50 to be connected. As shown in Figs. 8 and 9, the connecting material 110 has a first plate 111, a second plate 112, and a third plate 113. The first plate 111, the second plate 112, and the third plate 113 are provided with through holes 155 for rivets that penetrate in the plate thickness direction.

[0046] The thickness direction of the first plate 111 is along the Y-axis direction. The first plate 111 is L-shaped when viewed from the thickness direction. The first plate 111 includes a first portion 111a joined to the first plate 31 of the column 30 and a second portion 111b joined to the second plate 52 of the beam 50.

[0047] The length of the first portion 111a in the Z-axis direction is longer than the width of the first portion 111a in the X-axis direction. The second portion 111b is disposed in the X1 direction of the first portion 111a. The second portion 111b protrudes from the first portion 111a in the X1 direction.

[0048] The plate thickness direction of the second plate 112 is along the Z-axis direction. The second plate 112 has a rectangular shape when viewed from the plate thickness direction. The second plate 112 includes a first portion 112a disposed in the Y2 direction of the first plate 31 of the pillar 30, and a second portion 112b joined to the first plate 51 of the beam 50. The first plate 51 of the beam 50 is disposed in the Z2 direction of the second portion 112b.

[0049] The first portion 112a of the second plate 112 is disposed in the Y1 direction of the first portion 111a of the first plate 111. The second portion 112b of the second plate 112 is disposed in the Y1 direction of the second portion 111b of the first plate 111.

[0050] The thickness direction of the third plate 113 is along the X-axis direction. The third plate 113 has a rectangular shape when viewed from the thickness direction. The length of the third plate 113 along the Z-axis direction is longer than the width of the third plate 103 along the Y-axis direction. The third plate 113 is disposed in the X1 direction of the second plate 32 of the pillar 30 in the X-axis direction, and is joined to the second plate 32 of the pillar 30.

[0051] The connecting material 110 can be formed by bending a single plate material. The second plate 112 is formed by bending the first plate 111 along a bending line extending in the X-axis direction. The third plate 113 is formed by bending the first plate 111 along a bending line extending in the Z-axis direction.

[0052] The frame 10 includes a connecting member 120 that connects the pillar 30 and the beam 60. The connecting member 120 is an example of a second intermediate connecting member. An end 60a of the beam 60 in the X1 direction is disposed in the X2 direction of the second plate 32 of the pillar 30.

[0053] Fig. 10 is a perspective view showing the connecting member 120. The arrangement of the connecting member 120 can be changed depending on the arrangement of the columns 30 and beams 60 to be connected. As shown in Fig. 8 and Fig. 10, the connecting member 120 has a first plate 121, a second plate 122, and a third plate 123. The first plate 121, the second plate 122, and the third plate 123 are provided with through holes 155 for rivets that penetrate in the plate thickness direction.

[0054] The plate thickness direction of the first plate 121 is along the Y-axis direction. The first plate 121 has a rectangular shape when viewed from the plate thickness direction. The first plate 121 is disposed in the Y1 direction of the second plate 62 of the beam 60 and joined to the second plate 62 of the beam 60. The length of the first plate 121 in the X-axis direction is longer than the width of the first plate 121 in the Z-axis direction.

[0055] The thickness direction of the second plate 122 is along the Z-axis direction. The second plate 122 has a rectangular shape when viewed from the thickness direction. The second plate 122 is disposed in the Z1 direction of the first plate 61 of the beam 60 and joined to the first plate 61 of the beam 60. The length of the second plate 122 in the X-axis direction is longer than the width of the second plate 122 in the Y-axis direction. The second plate 122 protrudes from the first plate 121 in the Y1 direction.

[0056] The plate thickness direction of the third plate 123 is along the X-axis direction. The third plate 123 has a rectangular shape when viewed from the plate thickness direction. The third plate 123 is disposed in the X2 direction of the second plate 32 of the pillar 30 and joined to the second plate 32 of the pillar 30. The third plate 123 protrudes from the first plate 121 in the Y1 direction.

[0057] The connecting member 120 can be formed by bending a single plate material. The second plate 122 is formed by bending the first plate 121 along a bending line extending in the X-axis direction. The third plate 123 is formed by bending the first plate 121 along a bending line extending in the Z-axis direction.

[0058] 11 is a cross-sectional view showing a rivet fastening portion 150. The connecting material 100 is fastened to the column 20 and the beams 40, 70 by, for example, rivets. Similarly, the connecting material 110 is fastened to the column 30 and the beam 50 by rivets. The connecting material 120 is fastened to the column 30 and the beam 60 by rivets.

[0059] As shown in Fig. 11, the rivet fastening part 150 includes a pin 151 and a collar 152. A head 153 is provided at one end of the pin 151. A male thread is formed on the side of the pin 151. A flange part 152a is formed at one end of the collar 152. A female thread is formed on the inner surface of the opening of the collar 152.

[0060] The first plate 31 of the column 30 and the second plate 102 of the connecting member 100 are provided with a through hole 155. The pin 151 is inserted through the through hole 155. The head 153 is disposed in the Y2 direction of the first plate 31 of the column 30. The collar 152 is disposed on the opposite side of the first plate 31 and the second plate 102. The collar 152 is disposed in the Y2 direction of the second plate 102. The collar 152 is attached to the pin 151, and the flange portion 152a is pressed against the second plate 102. In this manner, the connecting member 100 and the column 30 can be joined by the rivet fastening portion 150. In the other corner portions C1 and the connecting portions J1 and J2, the connecting members 100, 110, and 120 are also joined to the columns and / or beams by using the rivet fastening portion 150.

[0061] The connecting material 100 shown in Figs. 3 and 4 is joined to the first plate 21 of the column 20 using three rivet fastening portions 150. The connecting material 100 is joined to the second plate 22 of the column 20 using three rivet fastening portions 150. The connecting material 100 is joined to the second plate 42 of the beam 40 using two rivet fastening portions 150. The connecting material 100 is joined to the first plate 41 of the beam 40 using two rivet fastening portions 150. The connecting material 100 is joined to the second plate 72 of the beam 70 using two rivet fastening portions 150. The connecting material 100 is joined to the first plate 71 of the beam 70 using two rivet fastening portions 150.

[0062] In other words, the connecting material 100 is joined to the column 20 by six rivet fastening portions 150. The connecting material 100 is joined to the beam 40 by four rivet fastening portions 150. The connecting material 100 is joined to the beam 70 by four rivet fastening portions 150. The number of rivet fastening portions 150 used to join the connecting material 100 to the column 20 is greater than the number of rivet fastening portions 150 used to join the connecting material 100 to the beam 40. Similarly, the number of rivet fastening portions 150 used to join the connecting material 100 to the column 20 is greater than the number of rivet fastening portions 150 used to join the connecting material 100 to the beam 70.

[0063] In the connecting material 100 of such a frame 10, a slit 105 is formed between the third plate 103 and the fourth plate 104, and the third plate 103 and the fourth plate 104 do not overlap. In such a connecting material 100, the third plate 103 and the fourth plate 104 are not formed to overlap in the plate thickness direction, and no material is wasted. This makes it possible to manufacture the frame 10 while eliminating material waste and saving resources.

[0064] Moreover, the connecting material 100 is formed by bending a single plate material. This makes it easy to realize the connecting material 100 that includes the first plate 101, the second plate 102, the third plate 103, and the fourth plate 104 that are made of the same material and have the same plate thickness. Also, the connecting material 100 that has a simple structure can be manufactured.

[0065] The connecting material 100 has surfaces perpendicular to the X-axis direction, the Y-axis direction, and the Z-axis direction, respectively. This allows the columns 20, the beams 40, and the beams 70 to be easily connected so that they are perpendicular to each other. This allows the positional accuracy between the strength members to be kept within a predetermined range, preventing significant positional deviation. This allows the variation in positional accuracy of the frame 10 to be suppressed. For example, when multiple frames 10 are arranged side by side, positional deviation between the frames 10 is suppressed.

[0066] In the connecting material 100, the third plate 103 and the fourth plate 104 do not overlap in the plate thickness direction, so that it is easy to align the position of the beam 70 joined to the third plate 103 with the position of the beam 40 joined to the fourth plate 104. Misalignment between the third plate 103 and the fourth plate 104 in the Z-axis direction is suppressed.

[0067] In the frame 10, the columns 20, 30, the beams 40, 50, 60, 70, and the connecting members 100, 110, 120 can be formed from plate materials of the same material and the same plate thickness. By standardizing the materials in this way, material waste can be eliminated and resources can be used more effectively.

[0068] If the columns 20, 30, the beams 40, 50, 60, 70, and the connecting members 100, 110, 120 are made of the same material, corrosion of the frame 10 can be prevented. The frame 10 is connected to earth. If the materials of the members constituting the frame 10 are different, a potential difference may occur and corrosion may occur, but in the frame 10, the materials of the members are the same, so corrosion is prevented.

[0069] Furthermore, since the connecting material 100 has the slits 105, it can tolerate deformation of the frame 10 in the event of an earthquake, etc., compared to a case in which the slits 105 are not provided. In the connecting material 100, the slits 105 are arranged along the Y-axis direction. This prevents the slits 105 from being arranged along the Z-axis direction, and allows the connecting material 100 to preferably bear the load in the direction of gravity.

[0070] In the frame 10, as shown in Fig. 7, the slits 105 extend in different directions, so that stress can be dispersed in a well-balanced manner. Furthermore, in the frame 10, the slits 105 are arranged along the Y-axis direction or the X-axis direction that intersects with the Z-axis direction. The slits 105 are not arranged along the Z-axis direction. Therefore, stress concentration on the second plate 102 that intersects with the slits 105 is prevented.

[0071] Furthermore, in the frame 10, the connecting material 100 is arranged so as not to protrude from the pillars 20 and the beams 40, 70. The connecting material 110 is arranged so as not to protrude from the pillars 30 and the beams 60. The connecting material 120 is arranged so as not to protrude from the beam 60. This ensures that the connecting materials 100, 110, 120 do not get in the way. If the connecting materials 100, 110, 120 protrude from strength members such as the pillars and beams, they may get in the way when installing wiring or the electrical equipment 2. In the frame 10, the connecting materials 100, 110, 120 do not protrude, so they do not get in the way when installing wiring or the electrical equipment 2.

[0072] In the frame 10, the connecting members 100, 110, 120 are joined to the columns 20, 30 and / or beams 40, 50, 60, 70 by rivet fastening parts 150. In the frame 10, the strength members are joined to each other without welding. In the frame 10, a weld-less structure is realized, and the positional accuracy is maintained regardless of the skill of the worker, while the quality variation is suppressed. Since the frame 10 can be manufactured without welding, the number of work steps can be reduced, and the manufacturing cost can be reduced.

[0073] Next, a frame 10B according to a second embodiment will be described with reference to Fig. 12 and Fig. 13. Fig. 12 is a perspective view showing a corner portion C1 where the pillar 20 and the beams 40, 70B of the frame 10B according to the second embodiment intersect. Fig. 12 is an exploded perspective view showing the corner portion C1 where the pillar 20 and the beams 40, 70B of the frame 10B intersect.

[0074] A frame 10B according to the second embodiment shown in Figures 12 and 13 differs from the frame 10 according to the first embodiment in that a beam 70B having a different shape of a first plate 71B is provided instead of the beam 70. In the description of the frame 10B of the second embodiment, descriptions similar to those of the frame 10 of the first embodiment will be omitted.

[0075] The beam 70B has a first plate 71B and a second plate 72 extending in the Y-axis direction. The first plate 71B includes an extension portion 73 that protrudes in the Y2 direction beyond the second plate 72. The extension portion 73 is disposed so as to cover the first portion 103a of the third plate 103 of the connecting material 100. The first plate 41 of the beam 40 is disposed in the X1 direction of the extension portion 73.

[0076] The extension portion 73 may be in close contact with the first plate 41 of the beam 40 arranged in the X1 direction of the extension portion 73. The extension portion 73 may be in close contact with the first plate 21 of the pillar 20 arranged in the Y2 direction of the extension portion 73. The extension portion 73 may be in close contact with the second plate 22 of the pillar 20 arranged in the X2 direction of the extension portion 73. In the Z2 direction, the positions of the end face of the pillar 20, the first plate 41 of the beam 40, and the first plate 71B of the beam 70B may be aligned.

[0077] The frame 10B according to the second embodiment also provides the same effects as the frame 10 according to the first embodiment. In the frame 10B, the connecting material 100 is covered by the extension portion 73 of the first plate 71B of the beam 70B. Such a frame 10B prevents foreign matter such as dust from entering through the gap at the joint between the pillar 20 and the connecting material 100. The extension portion 73 may be provided on the beam 40. If the extension portion 73 is provided on the first plate 41 of the beam 40, the slit 105 of the connecting material 100 can be covered.

[0078] It should be noted that the above-described embodiments merely illustrate typical forms of the present disclosure, and the present disclosure is not limited to the above-described embodiments, and various modifications and additions are possible without departing from the gist of the present disclosure.

[0079] In the above embodiment, the frame 10 is manufactured from materials of the same material and the same plate thickness, but the connecting members, columns, and beams of the frame 10 may be formed from different materials.

[0080] In addition, in the above embodiment, the pillars, beams, and connecting members are formed by bending processing, but the manufacturing method of these strength members is not limited to this, and they can be manufactured using other methods such as welding, cutting, casting, and forging.

[0081] In the above embodiment, the components of the frame 10 are joined by the rivet fastening portion 150, but they may be joined by other rivets. Also, the method of joining the components does not have to be rivets, and may be, for example, screws, or other joining methods.

[0082] In the above embodiment, the electric device 2 is arranged on the frame 10, but other devices may be arranged thereon. In the above embodiment, the frame 10 is used as the electrical panel 1, but it may be used as a frame for storing other devices. The arrangement of the columns, beams, and connecting members may be changed as appropriate. The frame 10 may have panels or the like attached to the columns 20 and beams 40, 70. [Explanation of symbols]

[0083] Reference Signs List 1...electrical panel, 10, 10B...frame, 20...pillar (third strength member), 21...first plate, 22...second plate, 30...pillar (fourth strength member), 31...first plate, 32...second plate, 40...beam (first strength member), 41...first plate, 42...second plate, 50...beam (fifth strength member), 51...first plate, 52...second plate, 60...beam (sixth strength member), 61...first plate, 62...second plate, 70, 70B...beam (second strength member), 71, 71B...first plate, 72...second plate, 100...connecting member (corner connecting member), 101...second First plate, 102...second plate, 103...third plate, 104...fourth plate, 105...slit, 110...connecting material (first intermediate connecting material), 111...first plate, 112...second plate, 113...third plate, 120...connecting material (second intermediate connecting material), 121...first plate, 122...second plate, 123...third plate, L1...first folding line, L2...second folding line, L3...third folding line, X...X-axis direction (first direction, fourth direction, fifth direction), Y...Y-axis direction (second direction, fourth direction, fifth direction), Z...Z-axis direction (third direction).

Claims

1. The three directions perpendicular to each other are a first direction, a second direction, and a third direction, a first strength member having a first plate and a second plate extending in the first direction and having an L-shaped cross section intersecting the first direction; a second strength member having a first plate and a second plate extending in the second direction and having an L-shaped cross section intersecting the second direction; a third strength member having a first plate and a second plate extending in the third direction and having an L-shaped cross section intersecting the third direction; a corner connector connecting an end of the first strength member in the first direction, an end of the second strength member in the second direction, and an end of the third strength member in the third direction, The corner connector is A first plate whose plate thickness direction is the first direction and which is connected to the second strength member and the third strength member; A second plate whose plate thickness direction is the second direction and which is connected to the first strength member and the third strength member; A third plate whose plate thickness direction is the third direction and which is connected to the second strength member; A fourth plate whose plate thickness direction is the third direction and which is connected to the first strength member, A slit extending in the second direction is formed between the third plate and the fourth plate of the corner connecting material. Frame.

2. The corner connector is formed by bending a plate material, The second plate of the corner connector is folded from the first plate of the corner connector along a first fold line along the third direction, The third plate of the corner connector is folded from the first plate of the corner connector along a second fold line along the second direction, The fourth plate of the corner connector is formed by folding from the second plate of the corner connector along a third folding line along the first direction. The frame of claim 1 .

3. One of the first direction or the second direction is a fourth direction, and the other is a fifth direction; a fourth strength member having a first plate and a second plate extending in the third direction and an L-shaped cross section intersecting the third direction; a fifth strength member having a first plate and a second plate extending in the fourth direction and an L-shaped cross section intersecting the fourth direction; a first intermediate connecting member connecting an intermediate portion of the fourth strength member in the third direction and an end portion of the fifth strength member in the fourth direction; The first intermediate connecting material is A first plate whose plate thickness direction is the fifth direction and which is connected to the fourth strength member and the fifth strength member; A second plate whose plate thickness direction is the third direction and which is connected to the fifth strength member; A third plate having a plate thickness direction in the fourth direction and connected to the fourth strength member, The second plate of the first intermediate connector is folded from the first plate of the first intermediate connector along a first folding line along the fourth direction, The third plate of the first intermediate connecting material is formed by bending the first plate of the first intermediate connecting material along a second bending line along the third direction. A frame according to claim 1 or 2.

4. a sixth strength member having a first plate and a second plate extending on an opposite side of the fourth strength member from the fifth strength member in the fourth direction and having an L-shaped cross section intersecting the fourth direction; a second intermediate connecting member connecting an intermediate portion of the fourth strength member in the third direction and an end portion of the sixth strength member in the fourth direction; The second intermediate connecting material is A first plate whose plate thickness direction is the fifth direction and which is connected to the sixth strength member; A second plate whose plate thickness direction is the third direction and which is connected to the sixth strength member; A third plate having a plate thickness direction in the fourth direction and connected to the fourth strength member, The second plate of the second intermediate connector is folded from the first plate of the second intermediate connector along a first folding line along the fourth direction, The third plate of the second intermediate connecting material is formed by bending the first plate of the second intermediate connecting material along a second bending line along the third direction. The frame of claim 3.

5. A plurality of through holes for rivets are formed in the first plate and the second plate of the first strength member, A plurality of through holes for rivets are formed in the first plate and the second plate of the second strength member, A plurality of through holes for rivets are formed in the first plate and the second plate of the third strength member, A plurality of through holes for rivets are formed in the first plate, the second plate, the third plate, and the fourth plate of the corner connecting material, the number of rivet fastening portions between the second plate of the corner connector and the first plate of the third strength member is greater than the number of rivet fastening portions between the second plate of the corner connector and the second plate of the first strength member, The number of rivet fastening portions between the first plate of the corner connector and the second plate of the third strength member is greater than the number of rivet fastening portions between the first plate of the corner connector and the second plate of the second strength member. A frame according to any one of claims 1 to 4.

6. A frame according to any one of claims 1 to 5; An electrical device fixed to the frame; An electrical panel equipped with:

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