Containment device and equipment box

Abstract

To provide a storage device capable of sufficiently fixing a framework body, and to provide an apparatus box.SOLUTION: A storage device stores an electric apparatus and comprises a framework structure. The framework structure comprises a first frame material, a plurality of second frame materials, and an engage mechanism. The first frame material is formed in a rectangular ring shape in parallel with a first axis direction and a second axis direction which is orthogonal to the first axis direction. The second frame material extends in a third axis direction, which is different from the first axis direction and orthogonal to the second axis direction, and crosses the first frame material. The engage mechanism positions the first frame material and the plurality of second frame materials around a second axis in a plurality of any locations in a plurality of crossing regions where the first frame material crosses the plurality of second frame materials.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a housing device and an equipment box that are installed under the floor of a railway vehicle, for example, and house various electrical devices.

Background Art

[0002] Conventionally, as an underfloor device installed under the floor of a railway vehicle to house various electrical devices, a box-shaped housing having a box-shaped housing has been used.

[0003] For example, Patent Document 1 describes a housing (frame structure) having a pair of vertical frames and a pair of horizontal frames, and the pair of vertical frames and the pair of horizontal frames are fixed by rivets.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in Patent Document 1, when the vertical frame and the horizontal frame are fixed with rivets, when an external force is applied to the housing (frame structure), the vertical frame and the horizontal frame rotate around the axis into which the rivets are inserted, and there is a problem that the vertical frame and the horizontal frame are not orthogonal.

[0006] In view of the above circumstances, an object of the present invention is to provide a housing device and an equipment box that can easily position and fix a frame structure.

Means for Solving the Problems

[0007] To achieve the above object, a housing device according to one aspect of the present invention is a housing device that houses an electrical device, and includes a frame structure. The bone structure has a first frame member, a plurality of second frame members, and an engagement mechanism. The first frame member is in a rectangular ring shape parallel to a first axial direction and a second axial direction orthogonal to the first axial direction. Unlike the first axial direction, the second frame member extends in a third axial direction orthogonal to the second axial direction and intersects the first frame member. The engagement mechanism positions the first frame member and the plurality of second frame members around the second axis at any plurality of locations among a plurality of intersection regions where the first frame member and the plurality of second frame members intersect.

[0008] In the housing device, the engagement mechanism positions the first frame member and the plurality of second frame members around the second axis at any plurality of locations among a plurality of intersection regions where the first frame member and the plurality of second frame members intersect. Thereby, the first frame member and the plurality of second frame members can be easily positioned around the second axis.

[0009] The first frame member may have a plurality of first frame portions extending in the first axial direction and a plurality of second frame portions extending in the second axial direction. In that case, the plurality of intersection regions have at least one of a plurality of first intersection regions where the plurality of second frame members intersect each of the plurality of first frame portions and a plurality of second intersection regions where the plurality of second frame members intersect each of the plurality of second frame portions.

[0010] The engagement mechanism may have a first engagement mechanism that positions the plurality of first frame portions and the plurality of second frame members around the second axis at any plurality of locations among the plurality of first intersection regions.

[0011] The engaging mechanism may have a second engaging mechanism that positions the plurality of second frame portions and the plurality of second frame members about the second axis at any plurality of locations among the plurality of second intersection regions.

[0012] The first frame member may be orthogonal to an intermediate portion of the plurality of second frame members extending in the third axial direction.

[0013] The engaging mechanism may include a first recess having a plurality of first opposing surfaces provided at the intermediate portion of the plurality of second frame members and opposing in the third axial direction, and a first engaging portion provided on the first frame member and engaging with the first recess.

[0014] The framework structure may further include a rectangular annular third frame member that intersects one end side of the plurality of second frame members and faces the first frame member. In that case, the engaging mechanism may have a third engaging mechanism that positions the third frame member and the plurality of second frame members about the second axis at any plurality of locations among a plurality of third intersection regions where the third frame member and the plurality of second frame members intersect.

[0015] The third engaging mechanism may include a second recess having a plurality of second opposing surfaces provided on the third frame member and opposing in the first axial direction, and a second engaging portion provided on the plurality of second frame members and engaging with the second recess.

[0016] The framework structure may further include a rectangular annular fourth frame member that intersects the other end side of the plurality of second frame members and faces the first frame member. In that case, the engaging mechanism has a fourth engaging portion that positions the fourth frame member and the plurality of second frame members about the second axis at any plurality of locations among a plurality of fourth intersection regions where the fourth frame member and the plurality of second frame members intersect.

[0017] The plurality of second frame members may be L-shaped when viewed from the third axial direction.

[0018] The housing device may be installed under the floor of the railway vehicle.

[0019] To achieve the above object, an equipment box according to an aspect of the present invention includes the electrical equipment.

Effect of the Invention

[0020] As described above, according to the present invention, the framework can be easily positioned and fixed.

Brief Description of the Drawings

[0021]

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Mode for Carrying Out the Invention

[0022] Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of the equipment box 1000 in the embodiment of the present invention. FIG. 2 is a perspective view of the equipment box 1000 with the door portion 30 removed in the present invention. FIG. 3 is a perspective view of the housing device 1 with the door portion 30 removed and the upper surface portion 21 removed in the present invention. FIG. 4 is a perspective view of the housing device 1 with the door portion 30 and the upper surface portion 21 removed and a plurality of side surface portions 22, 23 removed. FIG. 5 is a perspective view of the framework structure 10 and the bottom surface portion 40. FIG. 6 is a perspective view of the framework structure 10. FIG. 7 is a perspective view of the framework 10A. FIG. 8 is a perspective view of the main frame 11. FIG. 9 is a perspective view of the first main frame 11A and the second main frame 11B. FIG. 10 is a perspective view of a plurality of sub-frames 12A to 12J and the rear surface portion 14. In the following figures, the X-axis, Y-axis, and Z-axis directions are three mutually perpendicular axis directions.

[0023] In this embodiment, the equipment box 1000 is installed under the floor (not shown) of a railway vehicle. As shown in FIGS. 1 to 4, the equipment box 1000 includes a housing device 1 and an electrical device 54. The housing device 1 includes a framework 10, a plate portion 20, a door portion 30, a bottom surface portion 40, a mounting member 50, and a third connecting member 60. In this embodiment, the length of the housing device 1 in the Y-axis direction is approximately 1 m, the length of the housing device 1 in the X-axis direction is approximately 0.7 m, and the length of the housing device 1 in the Z-axis direction is approximately 0.8 m, which is a cube, but of course it is not limited to this.

[0024] In this embodiment, the traveling direction of the railway vehicle is defined as the Y-axis direction, the vehicle width direction is defined as the X-axis direction, and the vehicle height direction is defined as the Z-axis direction.

[0025] There is a space under the floor (not shown) of the railway vehicle on the positive Z-axis side as viewed from the housing device 1, and the housing device 1 is attached to the floor under it. The housing device 1 is configured to be able to accommodate various electrical devices according to the type and car number of the railway vehicle. Also, in one vehicle, two housing devices 1 can be arranged in the X-axis direction. In this embodiment, they are arranged in a direction such that the cylindrical portion 90 described later is not exposed, but of course it is not limited to this.

[0026] [Bottom surface portion] In this embodiment, as shown in FIGS. 2 to 5, the bottom surface portion 40 has a surface parallel to the X-axis direction (the third axis direction) and the Y-axis direction (the first axis direction). In this embodiment, the bottom surface portion 40 is rectangular with a short side in the X-axis direction and a long side in the Y-axis direction, but of course it is not limited to this, and it may be rectangular with a long side in the X-axis direction and a short side in the Y-axis direction, or square. In this embodiment, the bottom surface portion 40 is formed of iron, but of course it is not limited to this, for example, it may be stainless steel (SUS), or not limited to metal, and may be made of resin.

[0027] [Plate portion] In this embodiment, as shown in FIGS. 1 to 4, the plate portion 20 has an upper surface portion 21 that faces the bottom surface portion 40 and is connected to the framework 10 (described later), and a plurality of side surface portions 22 and 23 that are parallel to each other in the XZ plane (second plane) orthogonal to the Y-axis direction and are connected to the framework 10. In this embodiment, the plate portion 20 is formed of iron, but of course it is not limited to this, and for example, it may be made of stainless steel (SUS), not limited to metals, and may also be made of resin.

[0028] (Upper surface portion) The upper surface portion 21 has an upper surface 210 that is a plane parallel to the XY plane and faces the bottom surface portion 40. In this embodiment, the upper surface 210 is rectangular with a short side in the X-axis direction and a long side in the Y-axis direction. Of course, it is not limited to this, and it may be rectangular with a long side in the X-axis direction and a short side in the Y-axis direction, or may be square. In this embodiment, the thickness of the upper surface 210 in the Z-axis direction is approximately 1.6 mm, but of course it is not limited to this.

[0029] The upper surface portion 21 has suspension fittings 211 to 214 for attaching the housing device 1 under the floor of a railway vehicle on the positive Z-axis side. In this embodiment, the suspension fittings 211 to 214 are provided at the four corners of the rectangular upper surface portion 21 (see FIGS. 1 to 3). The suspension fittings 211 to 214 are connected to the upper surface portion 21 by bolts B and nuts N (see FIG. 7). The bolts B penetrate and connect not only the suspension fittings 211 to 214 and the upper surface portion 21, but also the suspension fittings 211 to 214, the upper surface portion 21, and the framework 10.

[0030] The upper surface portion 21 also has an upper surface bending portion 215 that extends in the negative Z-axis direction from the four sides of the upper surface 210. The upper surface bending portion 215 has a "□" shape when viewed from the Z-axis direction (the second axial direction), and is located outside the size of the outer frame before the upper surface portion 21 is fitted (in the state where the bottom surface portion 40, the framework 10, and the plurality of side surface portions 22 and 23 are combined, see Fig. 3) (when viewed from the Z-axis direction). That is, when the upper surface portion 21 is combined, when viewed from the Z-axis direction, the upper surface bending portion 215 is located on the outermost side among the plurality of side surface portions 22 and 23, the front surface portion 13, and the rear surface portion 14 (see Figs. 1 and 2).

[0031] Furthermore, as shown in Figs. 2 and 3, the upper surface portion 21 has a plurality of upper surface connection holes 21A through which the bolts B penetrate the upper surface portion 21. In the present embodiment, the arrangement of the plurality of upper surface connection holes 21A is provided at the positions where a plurality of sub-frames 12A, 12B, 12D, and 12E (described later) of the framework 10 are provided when viewed from the Z-axis direction in order to connect the upper surface portion 21 and the framework 10 (penetrating in the Z-axis direction).

[0032] In the present embodiment, four upper surface connection holes 21A are provided along the X-axis direction and arranged in four rows parallel to each other, but of course, it is not limited to this.

[0033] (Side surface portion) The plurality of side surface portions 22 and 23 are parallel to the XZ plane (the second plane) orthogonal to the Y-axis direction, face each other, and are connected to the framework 10. The thickness in the Y-axis direction of the first side surface 220 and the second side surface 230 (described later) in the present embodiment is approximately 1.6 mm, but of course, it is not limited to this.

[0034] (The first side surface portion) The first side surface portion 22 has a first side surface 220 that is a plane parallel to the XZ plane, and is connected to the right side surface of the framework 10 when viewed from the front surface portion 13 side described later (see Figs. 1 to 4).

[0035] The first side surface portion 22 also has a first side surface bending portion 221 extending in the negative Y-axis direction from three sides of the first side surface 220. The three sides are parallel to the X-axis direction and include one side on the bottom surface portion 40 side and two sides parallel to the Z-axis direction, and are in a "U" shape when viewed from the Y-axis direction (see FIGS. 2 to 4).

[0036] When viewed from the Y-axis direction, the first side surface bending portion 221 is located outside the size of the outer frame before the first side surface portion 22 is fitted (in the state where the bottom surface portion 40 and the framework structure 10 are combined, see FIG. 4). That is, when the first side surface portion 22 is combined, when viewed from the Y-axis direction, the first side surface bending portion 221 is located on the outermost side among the front surface portion 13, the rear surface portion 14, and the framework 10 (see FIGS. 1 to 3).

[0037] As shown in FIGS. 2 to 4, the first side surface 220 has a plurality of first side surface connection holes 22A through which the first connecting member T penetrates the first side surface portion 22. In the present embodiment, the arrangement of the plurality of first side surface connection holes 22A is such that, in order for the first connecting member T to connect the first side surface portion 22 and the framework 10 (penetrating in the Y-axis direction), the positions where the plurality of sub-frames 12A, 12F, 12H of the framework 10 and the second main frame 11C are connected when viewed from the Y-axis direction, and the positions where the second main frame 11C is not arranged on the plurality of sub-frames 12A, 12F, 12H when viewed from the Y-axis direction are provided (see FIGS. 6 and 7).

[0038] In the present embodiment, five of the plurality of first side surface connection holes 22A are provided side by side along the X-axis direction, and three sets of the five are provided along the Z-axis direction. Of course, it is not limited to this, and for example, three may be provided side by side along the X-axis direction.

[0039] Also, as shown in FIGS. 1 to 5, the first side surface 220 and the front surface bending portion 130A (described later) of the front surface portion 13 and the rear surface bending portion 140A of the rear surface portion 14 are connected by the first connecting member T through the first side surface connection holes 22A.

[0040] (The second side surface portion) The second side surface portion 23 has a second side surface 230 that is a plane parallel to the XZ plane, and is connected to the left side surface of the framework 10 as viewed from the front surface portion 13 side described later (see FIGS. 3 and 4).

[0041] The second side surface portion 23 also has a second side surface bending portion 231 that extends in the positive direction of the Y axis from three sides of the second side surface 230. The three sides are parallel to the X-axis direction and have one side on the bottom surface portion 40 side and two sides parallel to the Z-axis direction, and are in a "U" shape when viewed from the Y-axis direction.

[0042] When viewed from the Y-axis direction, the second side surface bending portion 231 is located outside the size of the outer frame before the second side surface portion 23 is fitted (see FIG. 4, the state where the bottom surface portion 40 and the framework structure 10 are combined). That is, when the second side surface portion 23 is combined, when viewed from the Y-axis direction, the second side surface bending portion 231 is located on the outermost side among the front surface portion 13, the rear surface portion 14, and the framework 10 (see FIGS. 3 and 4).

[0043] As shown in FIG. 4, the second side surface 230 has a plurality of second connection holes 23A through which the first connection member T penetrates the second side surface portion 23. In the present embodiment, the arrangement of the plurality of second side surface connection holes 23A is such that the first connection member T connects the second side surface portion 23 and the framework 10 (penetrates in the Y-axis direction), so that when viewed from the Y-axis direction, a plurality of sub-frames 12E, 12G, 12J of the framework 10 and the second main frame 11E are connected, and positions where the second main frame 11E is not arranged on the plurality of sub-frames 12E, 12G, 12I when viewed from the Y-axis direction (see FIGS. 6 and 7).

[0044] In the present embodiment, five of the plurality of first side surface connection holes 22A are provided side by side along the X-axis direction, and three sets of the five are provided along the Z-axis direction. Of course, it is not limited to this, and for example, three may be provided side by side along the X-axis direction.

[0045] Similarly, via the second side connection holes 23A, similar to the first side surface portion 22, the second side surface 230, the front bending portion 130A (described later) of the front surface portion 13, and the rear bending portion 140A of the rear surface portion 14 are connected by the first connecting member T.

[0046] In this embodiment, the first side surface 220 and the second side surface 230 were approximately square, but are not limited thereto, and may be rectangular with a short side in the X-axis direction and a long side in the Y-axis direction.

[0047] [Framework structure] The framework structure 10 has a framework 10A described later, a front surface portion 13 and a rear surface portion 14 attached to the framework 10A, and engagement mechanisms M1 to M4. The framework structure 10 is formed in a lattice shape.

[0048] The framework 10A has a rectangular ring-shaped main frame body (first frame member) 11 parallel to the YZ plane (first plane) orthogonal to the X-axis direction, and a plurality of sub-frames (a plurality of second frame members) 12A to 12J that extend along the X-axis direction, are provided parallel to each other, and are connected (intersect) with the main frame body 11, and is provided on the bottom surface portion 40. The main frame body (first frame member) 11 is rectangular when viewed from the X-axis direction. Also, the plurality of sub-frames (a plurality of second frame members) 12A to 12J are in an "L" shape (see FIGS. 3 to 9). In this embodiment, the framework 10 is formed of iron, but of course is not limited thereto, and for example, may be stainless steel (SUS), or not limited to metal, and may be made of resin.

[0049] The framework structure 10 further has a front surface portion 13 having first opening ends 131 and 132 of first openings 131' and 132' that are parallel to the YZ plane and to which the attachment member 50 can be inserted and are fixed (intersected) to one end sides of the plurality of sub-frames (a plurality of second frame members) 12A to 12J, and a rear surface portion 14 having second opening ends 141 and 142 of second openings 141' and 142' that are parallel to the YZ plane and to which the attachment member 50 can be inserted and are fixed (intersected) to the other end sides of the plurality of sub-frames (a plurality of second frame members) 12A to 12J (see FIGS. 2 to 5).

[0050] Here, the intersection does not refer only to the orthogonal state (cross shape), but also refers to the state where they overlap in a T shape.

[0051] (Main frame body) The main frame body 11 includes a plurality of first main frames (a plurality of first frame portions) 11A and 11B that extend along the Y-axis direction and are provided parallel to each other, and a plurality of second main frames (a plurality of second frame portions) 11C to 11E that extend along the Z-axis direction, are provided parallel to each other, and are connected to both ends of the plurality of first main frames (a plurality of first frame portions) 11A and 11B by a second connecting member 70 described later.

[0052] (First main frame) The first main frame 11A has a first main frame surface 111A provided on the upper surface portion 21 side and parallel to the XY plane, a plurality of first main bending portions 112A that extend from both sides along the Y-axis direction of the first main frame surface 111A in the negative direction of the Z-axis, and a first engaging portion 115A that engages with sub-frames 12B to 12D described later (see FIGS. 7 to 9).

[0053] The first main frame 11A has a plurality of first main connecting holes 113A on the first main frame surface 111A. The plurality of first main connecting holes 113A are provided at positions corresponding to the first sub-connecting holes 123A to 123E of the plurality of sub-frames 12A to 12E.

[0054] That is, when viewed from the Z-axis direction, a part of the first sub-connecting holes 123A to 123E is arranged at the position where the plurality of first main connecting holes 113A are provided. And the third connecting member 60 penetrates through the first sub-connecting holes 123A to 123E and the plurality of first main connecting holes 113A. In other words, the plurality of first connecting holes 113A and a part of the first sub-connecting holes 123A to 123E are arranged in a straight line in the Z-axis direction.

[0055] In addition, the first main frame 11A has a plurality of first bending connection holes 114A in a plurality of first main bending portions 112A. The plurality of first bending connection holes 114A are through holes for connection with the second main frames 11C to 11E and the second connecting members 70 described later. The plurality of first bending connection holes 114A are formed to penetrate in the X-axis direction. In the present embodiment, six of the plurality of first main bending portions 112A are provided on the positive X-axis side.

[0056] That is, two are provided at each of the three locations (one end on the positive Z-axis side) connected to the second main frames 11C to 11E (see FIG. 8). Among the plurality of first main bending portions 112A, a plurality of first bending connection holes 114A are also provided on the negative X-axis side in the same manner as on the positive X-axis side, and are provided so as to penetrate when viewed from the X-axis direction.

[0057] In addition, the first engaging portion 115A engages (accommodates) with, for example, a first recess 124B (described later) having a plurality of first opposing surfaces 1241B provided on the sub-frame 12B. In the present embodiment, the first engaging portion 115A has a "U" shape having the first main frame surface 111A and a plurality of first main bending portions 112A, and is provided in a first intersection region W1 where the sub-frame 12B and the first main frame A intersect. However, of course, it is not limited to this, and the first engaging portion 115A may have a notch in the Z-axis direction, and a part of the first recess 124B described later may be inserted into the notch.

[0058] In addition, the first engaging portion 115A is not limited to the above-described sub-frame 12B, and the sub-frames 12C and 12D also have the same configuration as the sub-frame 12B.

[0059] The first main frame 11B has a first main frame surface 111B provided on the bottom surface portion 40 side and parallel to the XY plane, a plurality of first main bending portions 112B extending in the positive Z-axis direction from both sides along the Y-axis direction of the first main frame surface 111B, and a first engaging portion 115B that engages with the sub-frame 12I described later (see FIG. 8).

[0060] Also, the first main frame 11B has a plurality of first bending connection holes 113B in a plurality of first main bending portions 112B. The plurality of first bending connection holes 113B are through holes for connecting with the second main frames 11C to 11E and the second connecting member 70 described later. The plurality of first bending connection holes 113B are formed to penetrate in the X-axis direction. In this embodiment, among the plurality of first main bending portions 112B, two are provided on the positive X-axis side, and these are respectively provided at three positions (one end on the negative Z-axis side) corresponding to the second main frames 11C to 11E (see FIG. 8). Among the plurality of first main bending portions 112B, a plurality of first bending connection holes 113B are also provided on the negative X-axis side in the same manner as on the positive X-axis side, and are provided so as to penetrate when viewed from the X-axis direction.

[0061] Also, the first engaging portion 115B is the same as the first engaging portion 115A, and engages with a first recess (not shown) having a plurality of first opposing surfaces (not shown) provided on the sub-frame 12I. In this embodiment, the first engaging portion 115B has a "U" shape having the first main frame surface 111B and a plurality of first main bending portions 112B. However, of course, it is not limited to this, and the first engaging portion 115B may have a notch in the Z-axis direction, and a part of the first recess described later may be inserted into the notch.

[0062] As shown in FIG. 8, the first main frame 11A and the first main frame 11B have a "U" shape, and the opening portions face each other.

[0063] In this embodiment, the first main frames 11A and 11B have a "U" shape, but of course, it is not limited to this, and they may have other shapes.

[0064] (Second Main Frame) The second main frame 11C is provided to connect one ends of the first main frame 11A and the first main frame 11B on the positive Y-axis side. The second main frame 11C is provided on the first side surface 22 side, and has a second main frame surface 111C parallel to the XZ plane, a plurality of second main bending portions 112C extending in the negative Y-axis direction from both sides along the Z-axis direction of the second main frame surface 111C, and a first engaging portion 117C that engages with a sub-frame 12F described later, and has a U-shaped form.

[0065] The second main frame 11C is provided inside the U-shaped forms of the first main frames 11A and 11B. That is, the size (width) of the opening in the X-axis direction of the first main frames 11A and 11B is larger than the size (width) of the second main frame 11C in the X-axis direction (see FIGS. 7 to 9).

[0066] The second main frame 11C also has a plurality of second main connection holes 113C and a plurality of second main corresponding holes 113C' on the second main frame surface 111C. The plurality of second main connection holes 113C are provided at positions corresponding to the second sub-connection holes 124A, 123F, and 121H of the plurality of sub-frames 12A, 12F, and 12H. The plurality of second main corresponding holes 113C' are provided at positions corresponding to a part of the plurality of first side connection holes 22A described above (see FIGS. 1, 2, and 8).

[0067] That is, when viewed in the Y-axis direction, the plurality of second sub-connection holes 124A, 123F, and 121H are arranged at positions where the plurality of second main connection holes 113C are provided. The third connecting member 60 passes through the second sub-connection holes 124A, 123F, and 121H and passes through the plurality of second main connection holes 113C. In other words, the second sub-connection holes 124A, 123F, and 121H and the plurality of second main connection holes 113C are arranged in a straight line in the Y-axis direction.

[0068] Also, when viewed from the Y-axis direction, a plurality of first side connection holes 22A are arranged at positions where a plurality of second main corresponding holes 113C' are provided. And the first connecting member T passes through the plurality of second main corresponding holes 113C' through the first side connection holes 22A. In other words, the first side connection holes 22A and the plurality of second main corresponding holes 113C' are arranged in a straight line in the Y-axis direction respectively.

[0069] In the present embodiment, a plurality of second main connection holes 113C are provided in two along the X-axis direction on the positive Z-axis side of the second main frame 11C, and one second main corresponding hole 113C' is provided below (negative Z-axis direction) those two second main connection holes 113C. Those three holes are provided at three positions along the Z-axis direction.

[0070] Also, the second main frame 11C has a plurality of second bending connection holes 114C in a plurality of second main bending portions 112C. The plurality of second bending connection holes 114C are through holes for connecting with the above-described first main frames 11A, 11B and the second connecting member 70. The plurality of second bending connection holes 114C are formed to penetrate in the X-axis direction. In the present embodiment, among the plurality of second main bending portions 112C, two are provided on the positive X-axis side and are respectively provided at two positions corresponding to the first main frames 11A, 11B (see FIG. 8). Among the plurality of second main bending portions 112C, a plurality of second bending connection holes 114C are also provided on the negative X-axis side in the same manner as on the positive X-axis side, and are provided so as to penetrate when viewed from the X-axis direction.

[0071] Also, the first engaging portion 117C engages with a first concave portion 124F having a plurality of first opposing surfaces 1241F provided on the sub-frame 12F. In the present embodiment, the first engaging portion 117C has a "U" shape having the second main frame surface 111C and a plurality of second main bending portions 112C. However, of course, it is not limited to this, and the first engaging portion 117C may have a notch in the Y-axis direction, and a part of the first concave portion 124F described later may be inserted into the notch.

[0072] The second main frame 11E is provided to connect one ends of the first main frames 11A and 11B on the negative Y-axis side. The second main frame 11E is provided on the second side surface portion 23 side, and has a second main frame surface 111E parallel to the XZ plane, a plurality of second main bent portions 112E extending in the positive Y-axis direction from both sides along the Z-axis direction of the second main frame surface 111E, and a first engaging portion 117E that engages with a sub-frame 12G described later, and has a "U" shape.

[0073] The second main frame 11E is provided inside the "U" shape of the first main frames 11A and 11B. That is, the size (width) of the opening in the X-axis direction of the first main frames 11A and 11B is larger than the size (width) of the second main frame 11E in the X-axis direction.

[0074] The second main frame 11E also has a plurality of second main connection holes 113E and a plurality of second main corresponding holes (not shown) on the second main frame surface 111E. The plurality of second main connection holes 113E are provided at positions corresponding to second sub-connection holes (not shown) of the plurality of sub-frames 12E, 12G, and 12J. The plurality of second main corresponding holes (not shown) are the same as the plurality of second main corresponding holes 113C' described above, and are provided at positions corresponding to a part of the plurality of second side connection holes 23A described above.

[0075] That is, when viewed in the Y-axis direction, second sub-connection holes (not shown) are arranged at positions where the plurality of second main connection holes 113E are provided. The third connecting member 60 passes through the second sub-connection holes (not shown) and the plurality of second main connection holes 113E. The plurality of second main connection holes 113C and the plurality of second main connection holes 113E are arranged in a straight line in the Y-axis direction.

[0076] Also, the second main frame 11E has a plurality of second bending connection holes 114E in a plurality of second main bending portions 112E. The plurality of second bending connection holes 114E are through holes for connecting with the first main frames 11A and 11B and the second connecting member 70 described above. The plurality of second bending connection holes 114E are formed to penetrate in the X-axis direction. In this embodiment, among the plurality of second main bending portions 112E, two are provided on the positive X-axis side, and they are provided at two locations corresponding to the first main frames 11A and 11B respectively (see FIG. 8). Among the plurality of second main bending portions 112E, a plurality of second bending connection holes 114E are also provided on the negative X-axis side in the same manner as on the positive X-axis side, and are provided so as to penetrate when viewed from the X-axis direction.

[0077] Also, the first engaging portion 117E, similar to the first engaging portion 117C, engages with a first recess (not shown) having a plurality of opposing surfaces (not shown) provided on the sub-frame 12G. In this embodiment, the first engaging portion 117E has a "C" shape having the second main frame surface 111E and a plurality of second main bending portions 112E. However, of course, it is not limited to this, and the first engaging portion 117E may have a notch in the Y-axis direction, and a part of the first recess described later may be inserted into the notch.

[0078] The second main frame 11D is provided at the central portion of the first main frames 11A and 11B in the Y-axis direction. The second main frame 11D has a "C" shape having a second main frame surface 111D parallel to the XZ plane and a plurality of second main bending portions 112D extending in the negative Y-axis direction from both sides along the Z-axis direction of the second main frame surface 111D. In this embodiment, the opening of the second main frame 11D faces the negative Y-axis side, but of course, it is not limited to this, and it may face the positive Y-axis side.

[0079] The second main frame 11D is provided inside the "U" - shaped interior of the first main frames 11A and 11B. That is, the size (width) of the opening in the X - axis direction of the first main frames 11A and 11B is larger than the size (width) of the second main frame 11D in the X - axis direction.

[0080] Also, the second main frame 11D has a plurality of second main bending portions 112D with a plurality of second bending connection holes 113D. The plurality of second bending connection holes 113D are through - holes for connecting with the above - mentioned first main frames 11A and 11B and the second connecting member 70. The plurality of second bending connection holes 113D are formed to penetrate in the X - axis direction. In this embodiment, among the plurality of second main bending portions 112D, two are provided on the positive X - axis side, and they are provided at two corresponding positions on the first main frames 11A and 11B respectively (see Fig. 8). Among the plurality of second main bending portions 112D, a plurality of second bending connection holes 113D are also provided on the negative X - axis side in the same manner as on the positive X - axis side, and are provided so as to penetrate when viewed from the X - axis direction.

[0081] In this embodiment, the sub - frame extending in the X - axis direction does not intersect (connect) with the second main frame 11D, but the sub - frame may intersect (connect) with the second main frame 11D. Also, in that case, a structure similar to the first engaging portions 117C and 117E may be provided.

[0082] Also, the second main frames 11C, 11D, and 11E have attachment member connection holes 115C, 116C, 115D, 116D, 115E, and 116E for fixing the attachment support member 50D (described later) by the rear fixture 50C (described later) (see Figs. 3 and 8).

[0083] The attachment member connection holes 115C, 115D, and 115E are provided in a straight line side - by - side in the Y - axis direction when viewed from the X - axis direction. Also, the attachment member connection holes 116C, 116D, and 116E are provided in a straight line side - by - side in the Y - axis direction on the negative Z - axis side of the attachment member connection holes 115C, 115D, and 115E when viewed from the X - axis direction.

[0084] As for the connection method between the first main frames 11A and 11B and the second main frames 11C, 11D, and 11E, not only the second connecting member 70 but also fillet welding may be performed on the portions connected by the second connecting member 70. Thereby, rattling of the main frame 11 can be suppressed.

[0085] In the present embodiment, the second main frames 11C, 11D, and 11E are in a "C" shape, but of course, the present invention is not limited to this, and other shapes may be used.

[0086] (Sub-frame) The plurality of sub-frames 12A to 12J extend along the X-axis direction, are provided parallel to each other, and intersect with the main frame body 11, the front surface portion 13, and the rear surface portion 14 (see FIGS. 5 to 7). Specifically, the plurality of sub-frames 12A to 12J engage with the main frame body 11 at the intermediate portions in the X-axis direction of the plurality of sub-frames 12A to 12J and are fixed by the third connecting member 60 and welding. The plurality of sub-frames 12A to 12J also engage with the front surface portion 13 and the rear surface portion 14 and are fixed by welding. The plurality of sub-frames 12A to 12J are arranged (connected) along the entire circumference (outer circumference) of the main frame body 11 as viewed from the X-axis direction. Here, the entire circumference of the main frame body 11 is formed by the first main frame surfaces 111A and 111B and the second main frame surfaces 111C and 111E. That is, the plurality of sub-frames 12A to 12J are arranged in a rectangular ring shape as viewed from the X-axis direction.

[0087] The sub-frame 12A has an "L" shape having a first sub-frame surface 121A parallel to the XY plane and a second sub-frame surface 122A extending from one side (on the positive Y-axis side) along the X-axis direction of the first sub-frame surface 121A in the negative Z-axis direction. The sub-frame 12A is provided at one end on the positive Y-axis side of the first main frame 11A. In the present embodiment, the sub-frame 12A is connected to the main frame 11 at approximately the central portion (intermediate portion) AO (in the X-axis direction) of the sub-frame 12A.

[0088] The sub-frame 12A has a plurality of first sub-connection holes 123A for connecting to the upper surface portion 21 by bolts B on the first sub-frame surface 121A. Further, the plurality of first sub-connection holes 123A are also through holes for connecting the first sub-frame surface 121A and the first main frame 11A by the third connecting member 60. A nut N is provided on the first sub-frame surface 121A on the negative Z-axis side, and the above-described bolt B is fitted therein.

[0089] The plurality of first sub-connection holes 123A are provided along the X-axis direction. The plurality of first sub-connection holes 123A provided at the connection portion between the sub-frame 12A and the first main frame 11A are provided so as to be penetrated by the third connecting member 60 in the Z-axis direction as described above. In the present embodiment, two first sub-connection holes 123A are provided at both ends in the X-axis direction, and a total of six first sub-connection holes 123A, two at the connection portion with the first main frame 11A, are provided, but the number is not particularly limited and may be four or eight.

[0090] The sub-frame 12A has a plurality of second sub-connection holes 124A for connecting to the second main frame 11C on the second sub-frame surface 122A by the third connecting member 60, and a plurality of second sub-corresponding holes 125A provided at positions corresponding to a part of the plurality of first side connection holes 22A described above.

[0091] The plurality of second sub-connection holes 124A and the plurality of second main connection holes 113C provided at the connection portion between the sub-frame 12A and the second main frame 11C (the central portion in the X-axis direction of the sub-frame 12A and one end on the positive Z-axis side of the second main frame 11C) are provided so as to be penetrated by the third connecting member 60 in the Y-axis direction as described above. In the present embodiment, two second sub-connection holes 124A are provided at positions overlapping the second main frame surface 111C when viewed from the Y-axis direction. Of course, it is not limited to this, and the number of holes may be one.

[0092] Also, when viewed from the Y-axis direction, a plurality of first side connection holes 22A are arranged at positions where a plurality of second sub-corresponding holes 125A are provided. And the first connecting member T passes through the plurality of first side connection holes 22A and then through the plurality of second sub-corresponding holes 125A. In other words, the first side connection holes 22A and the second sub-corresponding holes 125A are arranged in a straight line in the Y-axis direction. In the present embodiment, three second sub-corresponding holes 125A are provided along the X-axis direction. As shown in FIG. 7, the three holes are provided one each in the positive and negative directions of the X-axis with the hole provided at a position overlapping the second main corresponding hole 113C' when viewed from the Y-axis direction as the center.

[0093] In the present embodiment, two second sub-connection holes 124A are provided along the X-axis direction on the positive Z-axis side of the second sub-frame surface 122A, and one second sub-corresponding hole 125A is provided below (negative Z-axis direction) the two second sub-connection holes 124A.

[0094] Also, the plurality of second sub-connection holes 124A and the plurality of second main connection holes 113C described above are used as holes for temporarily fixing the sub-frame 12A and the main frame 11. This is because it is necessary to fix the main frame 11 and the sub-frame 12 in advance in order to connect them to the plate portion 20, the front portion 13, and the rear portion 14 described later. In the present embodiment, for example, the two second sub-connection holes 124A and the second main connection hole 113C may be fixed in advance with bolts, nuts, or rivets for temporary fixing.

[0095] Also, the portions where the sub-frame 12A abuts against the first main frame 11A and the second main frame 11C may be welded (fillet welding). Thereby, rattling when the sub-frame 12A is fixed to the first main frame 11A and the second main frame 11C can be suppressed.

[0096] The sub-frame 12A has a first engaging portion 126A that engages with a front bending portion 130A described later, and a second engaging portion 127A that engages with a rear bending portion 140A described later.

[0097] The first engaging portion 126A is provided on the positive X-axis side of the sub-frame 12A and engages with a first recess 1300A formed in the front bending portion 130A described later. The first engaging portion 126A has an L shape when viewed from the X-axis direction, and the first recess 1300A formed in the front bending portion 130A has the same L shape as the first engaging portion 126A when viewed from the X-axis direction.

[0098] The second engaging portion 127A is provided on the negative X-axis side of the sub-frame 12A and engages with a second recess 1400A formed in the rear bending portion 140 described later. The second engaging portion 127A has an L shape when viewed from the X-axis direction, and the second recess 1400A formed in the rear bending portion 140A has the same L shape as the second engaging portion 127A when viewed from the X-axis direction.

[0099] The front bending portion 130A and the first engaging portion 126A are flush in the XY plane and the XZ plane. Also, the rear bending portion 140A and the second engaging portion 127A are flush in the XY plane and the XZ plane.

[0100] The sub-frame 12E has substantially the same configuration as the above-described sub-frame 12A, and is different in that the sub-frame 12E is provided at one end on the negative Y-axis side of the first main frame 11A. The sub-frame 12H has substantially the same configuration as the above-described sub-frame 12A, and is different in that the sub-frame 12H is provided at one end on the positive Y-axis side of the first main frame 11B. Further, the sub-frame 12J has substantially the same configuration as the above-described sub-frame 12A, and is different in that the sub-frame 12J is provided at one end on the negative Y-axis side of the first main frame 11B.

[0101] The sub-frame 12B has an "L" shape having a first sub-frame surface 121B parallel to the XY plane and a second sub-frame surface 122B extending from one side (on the positive Y-axis side) along the X-axis direction of the first sub-frame surface 121B in the negative Z-axis direction. The sub-frame 12B is provided on the negative Y-axis side of the sub-frame 12A.

[0102] The sub-frame 12B has a plurality of first sub-connection holes 123B for connecting the upper surface portion 21 by bolts B or the first main frame 11A by the third connecting member 60 on the first sub-frame surface 121B. A nut N is provided on the negative Z-axis side of the first sub-frame surface 121B, and the above-described bolt B is fitted therein.

[0103] The plurality of first sub-connection holes 123B are provided along the X-axis direction. The plurality of first sub-connection holes 123B provided at the location where the sub-frame 12B and the first main frame 11A are connected are provided so as to be penetrated by the third connecting member 60 in the Z-axis direction as described above. In the present embodiment, a total of six first sub-connection holes 123B, two at each of both ends in the X-axis direction and two at the location where it is connected to the first main frame 11A, are provided, but the number is not particularly limited and may be four or eight.

[0104] The second sub-frame surface 122B has a recess (first recess) 124B cut in a "C" shape. The recess 124B is formed at the same position in the X-axis direction as the first sub-connection hole 123B in the central portion (intermediate portion) BO in the X-axis direction and has a plurality of first opposing surfaces 1241B opposing in the X-axis direction. The sub-frame 12B also has a first engaging portion 125B and a second engaging portion 126B at both ends in the X-axis direction, and engages with the front surface portion 13 and the rear surface portion 14 described later.

[0105] The first engaging portion 125B is provided on the positive X-axis side of the sub-frame 12B and engages with a first recess (second recess) 1300A formed in a front bending portion 130A described later. The second engaging portion 126B is provided on the negative X-axis side of the sub-frame 12B and engages with a second recess 1400A formed in a rear bending portion 140A described later.

[0106] The first engaging portion 125B is formed shorter than the second sub-frame surface 122B when viewed in the Z-axis direction (in the X-axis direction). That is, when viewed in the Y-axis direction, one end of the sub-frame 12B in the positive X-axis direction has a portion where only the second sub-frame surface 122B is formed. The second sub-frame surface 122B has a first extending portion 1221B provided on the positive X-axis side (front bending portion 130A side or front portion 13 side) of the first sub-frame surface 121B when viewed in the Y-axis direction. The first extending portion 1221B abuts (contacts) the front bending portion 130A and the front surface 130. The first extending portion 1221B has a first notch portion 125B' cut toward the negative Z-axis side. The role of the first notch portion 125B' is to provide relief for sheet metal bending. That is, it is a notch for preventing the sheet metal (frame) from being pulled and becoming convex outward when the sub-frame 12B is bent.

[0107] The second engaging portion 126B is formed shorter than the second sub-frame surface 122B when viewed in the Z-axis direction (in the X-axis direction). That is, when viewed in the Y-axis direction, one end of the sub-frame 12B in the negative X-axis direction has a portion where only the second sub-frame surface 122B is formed. The second sub-frame surface 122B has a second extending portion 1222B provided on the negative X-axis side (rear bending portion 140A side or rear portion 14 side) of the first sub-frame surface 121B when viewed in the Y-axis direction. The second extending portion 1222B abuts (contacts) the rear bending portion 140A and the front surface 140. The second extending portion 1222B has a second notch portion (not shown) similar to the first notch portion 125B' cut toward the negative Z-axis side.

[0108] The front bending portion 130A and the first engaging portion 125B are flush with each other in the XY plane and the XZ plane. Also, the rear bending portion 140A and the second engaging portion 126B are flush with each other in the XY plane and the XZ plane.

[0109] The portion where the first engaging portion 125B and the first extending portion 1221B contact the front portion 13 (the front bending portion 130A and the front surface 130) may be welded (fillet welding). Thereby, rattling when the sub-frame 12B and the front portion 13 are fixed can be suppressed.

[0110] Also, the portion where the second engaging portion 126B and the second extending portion 1222B contact the rear portion 14 (the rear bending portion 140A and the rear surface 140) may be welded (fillet welding). Thereby, rattling when the sub-frame 12B and the rear portion 14 are fixed can be suppressed.

[0111] Also, in the present embodiment, the plurality of opposing surfaces 1241B of the concave portion 124B face (contact) the plurality of first main bending portions 112A.

[0112] Furthermore, the portion where the concave portion 124B contacts the first main frame 11A may be welded (fillet welding). Thereby, positioning can be performed when connecting the upper surface portion 21. Also, rattling when the sub-frame 12B and the first main frame 11A are fixed can be suppressed.

[0113] The sub-frame 12C has substantially the same configuration as the above-described sub-frame 12B. As shown in FIG. 10, the sub-frame 12C has an "L" shape having a first sub-frame surface 121C parallel to the XY plane and a second sub-frame surface 122C extending from one side (on the positive Y-axis side) along the X-axis direction of the first sub-frame surface 121C in the negative Z-axis direction. The sub-frame 12C is provided on the negative Y-axis side of the sub-frame 12B. In other words, the sub-frame 12C is provided at the central portion of the first main frame 11A along the Y-axis direction.

[0114] The sub-frame 12C has a plurality of first sub-connection holes 123C for connecting to the first main frame 11A by a third connection member 60 on the first sub-frame surface 121C.

[0115] The plurality of first sub-connection holes 123C are provided along the X-axis direction. The plurality of first sub-connection holes 123C provided at the connection location between the sub-frame 12C and the first main frame 11A are provided so as to be penetrated by the third connection member 60 in the Z-axis direction as described above. In the present embodiment, two first sub-connection holes 123C are provided along the X-axis direction, but the number is not particularly limited and may be one or three.

[0116] The second sub-frame surface 122C has a recess (first recess) 124C cut in a "U" shape. The recess 124C is formed at the same position as the first sub-connection hole 123C of the central portion CO in the X-axis direction and has a plurality of first opposing surfaces 1241C opposing in the X-axis direction. Further, the sub-frame 12C has a first engaging portion (not shown) and a second engaging portion 125C at both ends in the X-axis direction, and is connected to the front portion 13 and the rear portion 14 described later by uneven engagement.

[0117] The second engaging portion 125C is formed shorter than the second sub-frame surface 122C when viewed from the Z-axis direction (in the X-axis direction). That is, when viewed from the Y-axis direction, at one end in the negative X-axis direction of the sub-frame 12C, there is a portion where only the second sub-frame surface 122C is formed. The second sub-frame surface 122C has a second extending portion 1221C provided on the negative X-axis side (the rear surface bending portion 140A side or the rear portion 14 side) of the first sub-frame surface 121C when viewed from the Y-axis direction. The second extending portion 1221C abuts (contacts) the rear surface bending portion 140A. Further, the second extending portion 1221C has a second notch portion 125C' cut toward the negative Z-axis side.

[0118] In the present embodiment, the plurality of opposing surfaces 1241C of the recess 124C oppose (abut) the plurality of first main bending portions 112A.

[0119] The sub-frame 12D has substantially the same configuration as the above-described sub-frame 12B, and is different in that the sub-frame 12D is provided on the negative Y-axis side of the first main frame 11A. Further, the sub-frame 12I has substantially the same configuration as the above-described sub-frame 12B, and is different in that the sub-frame 12I is provided at approximately the central portion of the Y-axis of the first main frame 11B.

[0120] The sub-frame 12F has an "L" shape having a first sub-frame surface 121F parallel to the XY plane and a second sub-frame surface 122F extending in the negative Z-axis direction from one side (negative Y-axis side) along the X-axis direction of the first sub-frame surface 121F. The sub-frame 12F is provided at approximately the central portion of the Z-axis of the second main frame 11C.

[0121] The sub-frame 12F has a plurality of first sub-connection holes 123F provided at the central portion in the X-axis direction for connecting to the second main frame 11C by the third connecting member 60 on the second sub-frame surface 122F, and a plurality of second sub-corresponding holes 127F provided at positions corresponding to a part of the plurality of first side connection holes 22A described above.

[0122] A plurality of first sub-connection holes 123F and a plurality of second main connection holes 113C provided at the connection portion (central portion in the X-axis direction of the sub-frame 12F, central portion in the Z-axis direction of the second main frame 11C) where the sub-frame 12F and the second main frame 11C are connected are provided so as to be penetrated by the third connecting member 60 in the Y-axis direction as described above. In the present embodiment, two first sub-connection holes 123F are provided at the connection portion connecting to the first main frame 11A.

[0123] In addition, as viewed from the Y-axis direction, the first side connection holes 22A are arranged at the positions where the second sub corresponding holes 127F are provided. The first connection member T penetrates the first side connection hole 22A and then the second sub corresponding holes 127F. In other words, the first side connection hole 22A and the second sub corresponding holes 127F are arranged on a straight line in the Y-axis direction. In this embodiment, three second sub corresponding holes 127F are provided along the X-axis direction. As shown in FIG. 7, the three second sub corresponding holes 127F are provided in the positive and negative directions of the X-axis, centered on a hole provided at a position overlapping with the second main corresponding hole 113C' as viewed from the Y-axis direction.

[0124] In this embodiment, the multiple second sub-connecting holes 123F are provided in pairs along the X-axis direction on the positive side of the Z-axis of the second sub-frame surface 122F, and one second sub corresponding hole 127F is provided below (in the negative direction of the Z-axis) the two second sub-connecting holes 123F.

[0125] The above-mentioned plurality of second sub-connecting holes 123F and the plurality of second main connecting holes 113C are used as holes for temporarily fastening the sub-frame 12F and the main frame 11. This is because the main frame 11 and the sub-frame 12 need to be fixed in advance in order to connect them to the plate portion 20, the front portion 13, and the rear portion 14, which will be described later. In this embodiment, for example, the two second sub-connecting holes 123F and the second main connecting holes 113C may be fixed in advance with bolts and nuts, rivets, or the like, for temporary fastening.

[0126] The first sub-frame surface 121F has a recess 124F cut into a U-shape. The recess 124F is formed at the same position in the X-axis direction as the second sub-connecting hole 123F of the central portion FO, has a plurality of first opposing surfaces 1241F opposing in the X-axis direction, and is engaged with the second main frame 11C. The sub-frame 12F also has a first engagement portion 125F and a second engagement portion 126F at both ends in the X-axis direction, and is connected to the front surface portion 13 and the rear surface portion 14 described later by concave-convex engagement.

[0127] The first engaging portion 125F is provided on the positive X-axis side of the sub-frame 12F and engages with a first recess 1300A formed in a front bending portion 130A described later. The second engaging portion 126F is provided on the negative X-axis side of the sub-frame 12A and engages with a second recess 1400A formed in a rear bending portion 140 described later.

[0128] The first engaging portion 125F is formed shorter than the first sub-frame surface 121F in the X-axis direction when viewed from the Y-axis direction. That is, when viewed from the Z-axis direction, one end of the sub-frame 12F in the positive X-axis direction has a portion where only the first sub-frame surface 121F is formed. The first sub-frame surface 121F has a first extending portion 1211F provided on the positive X-axis side (on the side of the front bending portion 130A or the front portion 13) of the second sub-frame surface 122F when viewed from the Z-axis direction. The first extending portion 1211F abuts (contacts) the front bending portion 130A and the front surface 130. The first extending portion 1211F also has a first notch portion 125F' cut toward the negative Y-axis side. The role of the first notch portion 125F' is to provide relief for sheet metal bending. That is, it is a notch for preventing the sheet metal (frame) from being pulled and becoming convex outward when the sub-frame 12F is bent.

[0129] The second engaging portion 126F is formed shorter than the first sub-frame surface 121F in the X-axis direction when viewed from the Z-axis direction. When viewed from the Z-axis direction, one end of the sub-frame 12F in the negative X-axis direction has a portion where only the first sub-frame surface 121F is formed. The first sub-frame surface 121F has a second extending portion 1212F provided on the negative X-axis side (on the side of the rear bending portion 140A or the rear portion 14) of the second sub-frame surface 122F when viewed from the Z-axis direction. The second extending portion 1212F abuts (contacts) the rear bending portion 140A and the rear surface 140. The second extending portion 1212F also has a second notch portion 126F' similar to the first notch portion 125F' cut toward the negative Y-axis side.

[0130] The front bending portion 130A and the first engaging portion 125F (the second sub-frame surface 122F) are flush with each other in the XZ plane. Also, the rear bending portion 140A and the second engaging portion 126F (the second sub-frame surface 122F) are flush with each other in the XZ plane.

[0131] In this embodiment, a plurality of opposing surfaces 1241F of the recess 124F face (abut against) a plurality of second main bending portions 112C.

[0132] The portion where the first engaging portion 125F and the first extending portion 1211F contact the front portion 13 (the front bending portion 130A and the front surface 130) may be welded (fillet welding). Thereby, positioning can be performed when connecting the upper surface portion 21. Also, rattling when the sub-frame 12F and the front portion 13 are fixed can be suppressed.

[0133] The portion where the second engaging portion 126F and the second extending portion 1212F contact the rear portion 14 (the rear bending portion 140A and the rear surface 140) may be welded (fillet welding). Thereby, positioning can be performed when connecting the upper surface portion 21. Also, rattling when the sub-frame 12F and the rear portion 14 are fixed can be suppressed.

[0134] Furthermore, the portion where the recess 124F contacts the second main frame 11C may be welded (fillet welding). Thereby, positioning can be performed when connecting the second side surface portion 22. Also, rattling when the sub-frame 12F and the second main frame 11C are fixed can be suppressed.

[0135] The sub-frame 12G has substantially the same configuration as the above-described sub-frame 12F, and is different in that the sub-frame 12G is provided at approximately the central portion of the second main frame 11E in the Y-axis direction.

[0136] Since the framework 10 is formed by the main frame 11 parallel to the YZ plane and the plurality of sub-frames 12A to 12J extending in the X-axis direction as described above, the strength of the housing device 1 can be ensured by the framework 10.

[0137] In this embodiment, the sub-frames 12A to 12J are L-shaped, but of course, they are not limited to this and may have other shapes. Also, the number of sub-frames is not limited to 10 as in this embodiment. Also, the arrangement of the sub-frames 12A to 12J is not limited to this embodiment.

[0138] (Front part) The front part (the third frame member) 13 is parallel to the YZ plane and has a front surface 130 fixed to one end on the positive X-axis side of the plurality of sub-frames 12A to 12J, and first opening ends 131 and 132 provided on the front surface 130 (see FIGS. 1 to 5). In this embodiment, the front surface 13 is rectangular, short in the Z-axis direction and long in the Y-axis direction. Of course, it is not limited to this, and it may be rectangular, long in the Z-axis direction and short in the Y-axis direction, or square.

[0139] The front surface 130 has a front bending part 130A extending in the negative X-axis direction from the four sides of the front surface 130. The front bending part 130A has a plurality of first front bending surfaces 130B extending along the Y-axis direction and a plurality of second front bending surfaces 130C extending along the Z-axis direction, and is in a "mouth" shape when viewed from the X-axis direction.

[0140] The front bending portion 130A has a plurality of bending corresponding holes 130A' that are connected to a part of the plurality of first side connection holes 22A described above. The plurality of bending corresponding holes 130A' are provided on a plurality of second front bending surfaces 130C of the front bending portion 130A where the plurality of sub-frames 12A, 12F, 12H and the plurality of sub-frames 12E, 12G, 12I are connected to the front portion 13. In this embodiment, three bending corresponding holes 130A' are provided along the Z-axis direction. Of course, it is not limited to this, and there may be four or more, or two or less. Also, the plurality of bending corresponding holes 130A' are not provided in a straight line with the sub-frames 12A, 12F, 12H in the X-axis direction. Of course, they may be provided on the same straight line. The same configuration applies to the plurality of sub-frames 12E, 12G, 12I side.

[0141] Also, the plurality of first front bending surfaces 130B of the front bending portion 130A have first concave portions (second concave portions) 1300A that engage with the above-described sub-frames 12A to 12E, 12H to 12J. Also, the plurality of second front bending surfaces 130C of the front bending portion 130A have first concave portions (second concave portions) 1300B that engage with the above-described sub-frames 12A, 12E, 12F, 12G, 12H, 12J.

[0142] As shown in FIGS. 5 and 7, the first concave portion 1300A engages with the first engaging portion 126A of the sub-frame 12A and the first engaging portion 125B of the sub-frame 12B. The first concave portion 1300A that engages with the sub-frames 12B, 12C, 12D, 12I has a plurality of second opposing surfaces 1301A that oppose in the Y-axis direction. Of course, although not shown, the first concave portion 1300A also engages with the sub-frames 12C, sub-frame 12D, sub-frame 12E, sub-frame 12H, sub-frame 12I, sub-frame 12J in the same manner.

[0143] The first recess 1300B engages with the first engaging portion 126A of the sub-frame 12A and the first engaging portion 125F of the sub-frame 12F. The first recess 1300B that engages with the sub-frames 12F and 12G has a plurality of second opposing surfaces 1301B that oppose in the Z-axis direction. Of course, although not shown, the first recess 1300B is similarly engaged with the sub-frames 12E, 12G, 12H, and 12J.

[0144] The first recesses 1300A and 1300B that engage with the first engaging portion 126A of the sub-frame 12A in a concave-convex manner are cut in an "L" shape when viewed from the X-axis direction. Similarly, the first recesses 1300A and 1300B that engage with the first engaging portions (not shown) of the sub-frames 12E, 12H, and 12J in a concave-convex manner are cut in an "L" shape when viewed from the X-axis direction.

[0145] The first recess 1300A that engages with the first engaging portion 125B of the sub-frame 12B in a concave-convex manner is cut in a "U" shape when viewed from the Z-axis direction. Similarly, the first recess 1300A that engages with the first engaging portions (not shown) of the sub-frames 12C, 12D, and 12I in a concave-convex manner is cut in a "U" shape when viewed from the Z-axis direction.

[0146] The first recess 1300B that engages with the first engaging portion 125F of the sub-frame 12F in a concave-convex manner is cut in a "U" shape when viewed from the Y-axis direction. Similarly, the first recess 1300B that engages with the first engaging portion (not shown) of the sub-frame 12G in a concave-convex manner is cut in a "U" shape when viewed from the Y-axis direction.

[0147] The first recesses 1300A and 1300B are formed to engage with a plurality of sub-frames 12A to 12J and be parallel (flush) to the XY plane and the XZ plane. Thereby, when connecting the upper surface portion 21, the first side surface portion 22, and the second side surface portion 23, the gaps between the plurality of sub-frames 12A to 12J and the plate portion 20 can be eliminated.

[0148] The first opening end 131 is provided on the positive Y-axis side, has a rectangular opening 131' when viewed from the X-axis direction, and is rectangular with a short side in the Z-axis direction and a long side in the Y-axis direction. Of course, it is not limited to this, and it may also be rectangular with a long side in the Z-axis direction and a short side in the Y-axis direction, or square.

[0149] The first opening end 131 has a protruding portion 131A protruding in the positive X-axis direction from the front surface 130 (opening 131'), a flange portion 131B provided on the protruding portion 131A and parallel to the YZ plane, and a contact portion 131C extending from the negative X-axis side to the negative Z-axis side of the protruding portion 131A and formed along the Y-axis direction (see FIGS. 1 to 5, 10, and 11).

[0150] The protruding portion 131A is a rectangular ring provided along the opening 131', and the flange portion 131B is formed to extend outward (outside the opening 131') from the protruding portion 131A.

[0151] The second opening end 132 is the same as the first opening end 131, is provided on the negative Y-axis side, has a rectangular ring-shaped opening when viewed from the X-axis direction, and is rectangular with a short side in the Z-axis direction and a long side in the Y-axis direction. Of course, it is not limited to this, and it may also be rectangular with a long side in the Z-axis direction and a short side in the Y-axis direction, or square.

[0152] The second opening end 132 has a protruding portion 132A protruding in the positive X-axis direction from the front surface 130 (opening 132'), a flange portion 132B provided on the protruding portion 132A and parallel to the YZ plane, and a contact portion (not shown) provided on the negative X-axis side of the protruding portion 132A and extending in the Y-axis direction.

[0153] The protruding portion 132A is a rectangular ring provided along the opening 132', and the flange portion 132B is formed to extend outward (outside the opening 132') from the protruding portion 132A.

[0154] In this embodiment, the front portion 13 has a first opening end portion 131 and a second opening end portion 132, but it is not limited thereto, and either one of them may be used, or three or more may be used.

[0155] The front portion 13 has a plurality of wiring holes 133 provided so as to penetrate in the X-axis direction (see FIGS. 2 to 5). The plurality of wiring holes 133 are holes for passing the external wiring 90 when supplying the power supplied from the outside to the electric device 54. The number and size of the plurality of wiring holes 133 can be appropriately changed.

[0156] The front portion 13 also has a plurality of hinge portions 134 between the first opening end portion 131 and the plurality of wiring holes 133 in the Z-axis direction.

[0157] In this embodiment, two hinge portions 134 are provided along the Y-axis direction, and the door portion 30 described later is configured to be rotatable about the center in the Y-axis direction. That is, the door portion 30 is opened in the positive direction of the Z-axis. Of course, it is not limited thereto, and three or more hinge portions 134 may be provided.

[0158] The plurality of hinge portions 134 have a connection plate 134A connected to the door portion 30 and a rotation support portion 134B fixed to the front portion 13 and rotatably supporting the connection plate 134A.

[0159] (Rear portion) Regarding the rear portion (the fourth frame member) 14, it has the same configuration as the front portion 13. The rear portion 14 is parallel to the YZ plane and has a rear surface 140 fixed to one end on the negative X-axis side of the plurality of sub-frames 12A to 12J, and a second opening end portion provided on the rear surface 14A (see FIGS. 1 to 5). In this embodiment, the rear surface 140 has a rectangular shape that is short in the Z-axis direction and long in the Y-axis direction. Of course, it is not limited thereto, and it may have a rectangular shape that is long in the Z-axis direction and short in the Y-axis direction, or a square shape.

[0160] The rear surface 140 has a rear surface bending portion 140A that extends in the negative X-axis direction from the four sides of the rear surface 140. The rear surface bending portion 140A has a plurality of first rear surface bending surfaces 140B that extend along the Y-axis direction and a plurality of second rear surface bending surfaces 140C that extend along the Z-axis direction, and has a "mouth" shape when viewed from the X-axis direction.

[0161] The rear surface bending portion 140A has a plurality of bending corresponding holes 140A' that are connected to a part of the plurality of first side surface connection holes 22A described above. The plurality of bending corresponding holes 140A' are provided on the plurality of second rear surface bending surfaces 140C of the rear surface bending portion 140A where the plurality of sub-frames 12A, 12F, 12H and the rear surface portion 14 are connected. In this embodiment, three bending corresponding holes 140A' are provided along the Z-axis direction, but of course, it is not limited to this, and there may be four or more, or two or less. Also, the plurality of bending corresponding holes 140A' are not provided in a straight line with the sub-frames 12A, 12F, 12H in the X-axis direction, but of course, they may be provided on the same straight line. The same configuration applies to the plurality of sub-frames 12E, 12G, 12I side.

[0162] Also, the plurality of first rear surface bending surfaces 140B of the rear surface bending portion 140A have a second recess (third recess) 1400A that engages with the above-described sub-frames 12A to 12E, 12H to 12J. Also, the plurality of second rear surface bending surfaces 140C of the rear surface bending portion 140A have a second recess (third recess) 1400B that engages with the above-described sub-frames 12A, 12E, 12F, 12G, 12H, 12J.

[0163] As shown in FIGS. 5 and 7, the second recess 1400A engages with the second engaging portion 127A of the sub-frame 12A, the second engaging portion 126B of the sub-frame 12B, and the second engaging portion 125C of the sub-frame 12C. The second recess 1400A that engages with the sub-frames 12B, 12C, 12D, and 12I has a plurality of third opposing surfaces 1401A that oppose in the Y-axis direction. Of course, although not shown, the second recess 1400A also engages with the sub-frames 12D, 12E, 12H, 12I, and 12J in the same manner.

[0164] The second recess 1400B engages with the second engaging portion 127A of the sub-frame 12A and the second engaging portion 126F of the sub-frame 12F. The second recess 1400B that engages with the sub-frames 12F and 12G has a plurality of third opposing surfaces 1401B that oppose in the Z-axis direction. Of course, although not shown, the second recess 1400B also engages with the sub-frames 12E, 12G, 12H, and 12J in the same manner.

[0165] The second recesses 1400A and 1400B that engage with the second engaging portion 127A of the sub-frame 12A in a concave-convex manner are cut in an "L" shape when viewed from the X-axis direction. Similarly, the second recesses 1400A and 1400B that engage with the second engaging portions (not shown) of the sub-frames 12E, 12H, and 12J in a concave-convex manner are cut in an "L" shape when viewed from the X-axis direction.

[0166] The second recess 1400A that engages with the second engaging portion 126B of the sub-frame 12B and the second engaging portion 125C of the sub-frame 12C in a concave-convex manner is cut in a "U" shape when viewed from the Z-axis direction. Similarly, the second recess 1400A that engages with the second engaging portions (not shown) of the sub-frames 12D and 12I in a concave-convex manner is cut in a "U" shape when viewed from the Z-axis direction.

[0167] The second concave portion 1400B that engages in a concave-convex manner with the second engaging portion 126F of the sub-frame 12F is cut in a U-shape as viewed from the Y-axis direction. Similarly, the second concave portion 1400A that engages in a concave-convex manner with the second engaging portion (not shown) of the sub-frame 12G is cut in a U-shape as viewed from the Y-axis direction.

[0168] The second concave portions 1400A and 1400B are formed to engage with the plurality of sub-frames 12A to 12J so as to be parallel (flush) in the XY plane and the XZ plane. Thereby, when connecting the upper surface portion 21, the first side surface portion 22, and the second side surface portion 23, gaps between the plurality of sub-frames 12A to 12J and the plate portion 20 can be eliminated.

[0169] The third opening end portion 141 is provided on the positive Y-axis side, has a rectangular opening 141' as viewed from the X-axis direction, and is in a rectangular shape with a short side in the Z-axis direction and a long side in the Y-axis direction. Of course, it is not limited to this, and it may be in a rectangular shape with a long side in the Z-axis direction and a short side in the Y-axis direction, or it may be in a square shape.

[0170] The third opening end portion 141 has, similar to the above-described first opening end portion 131, a protruding portion (not shown) protruding in the positive X-axis direction from the rear surface 140 (opening 141'), a flange portion (not shown) provided on the protruding portion and parallel to the YZ plane, and a contact portion (not shown) extending from the positive X-axis side to the negative Z-axis side of the protruding portion and formed along the Y-axis direction.

[0171] [Engagement mechanism] The engagement mechanism positions the main frame body 11, the front surface portion 13, and the rear surface portion 14, and the plurality of sub-frames 12A to 12J around the Z-axis at any plurality of locations among the plurality of intersection regions where the main frame body 11, the front surface portion 13, and the rear surface portion 14, and the plurality of sub-frames 12A to 12J intersect.

[0172] Here, "any plurality of locations" means that there are a plurality of locations where the main frame body 11, the front portion 13, and the rear portion 14 intersect with the plurality of sub-frames 12A to 12J, and it may be all locations. Also, positioning around the Z-axis means that movement (rotation) around the Z-axis is restricted.

[0173] The plurality of intersection regions include a plurality of first intersection regions W1 where the plurality of sub-frames 12B to 12D and 12I intersect with each of the first main frames 11A and 11B (a plurality of first frame portions), and a plurality of second intersection regions W2 where the plurality of sub-frames 12F and 12G intersect with each of the second main frames 11C and 11D (a plurality of second frame portions).

[0174] The plurality of intersection regions also include a plurality of third intersection regions W3 where the front portion 13 (the third frame member) intersects with the plurality of sub-frames 12B to 12D and 12I, and a plurality of fourth intersection regions W4 where the rear portion 14 (the fourth frame portion) intersects with the plurality of sub-frames 12B to 12D and 12I.

[0175] The engagement mechanism has a first engagement mechanism M1 that positions the first main frames 11A and 11B and the sub-frames 12B to 12D and 12I around the Z-axis at any plurality of locations among the plurality of first intersection regions W1.

[0176] The first engagement mechanism M1 has a recess 124B provided in the middle portion BO of the sub-frame 12B and having a plurality of first opposing surfaces 1241B opposing in the X-axis direction, and a first engagement portion 115A provided on the first main frame 11A and engaging with the recess 124B. Of course, it is not limited to the sub-frame 12B, and the same applies to the sub-frames 12C, 12D, and 12I.

[0177] That is, even if the sub-frame 12B attempts to move (rotate) about the Z-axis by the first engagement mechanism M1, the movement (rotation) is restricted by the plurality of first main bending portions 112A of the first main frame 11A (the concave portion 124B is caught by the plurality of first main bending portions 112A). Thereby, the sub-frame 12B and the first main frame 11A are positioned about the Z-axis. Of course, this is not limited to the sub-frame 12B, and the same applies to the sub-frames 12C, 12D, and 12I.

[0178] The engagement mechanism has a second engagement mechanism M2 that positions the second main frames 11C and 11D and the sub-frames 12F and 12G about the axis in the Z-axis direction at any plurality of locations among the plurality of second intersection regions M2.

[0179] The second engagement mechanism M2 has a concave portion 124F provided in the middle portion FO of the sub-frame 12F and having a plurality of first opposing surfaces 1241F opposing in the X-axis direction, and a second engagement portion 117C provided in the second main frame 11C and engaging with the concave portion 124F. Of course, this is not limited to the sub-frame 12F, and the same applies to the sub-frame 12G.

[0180] That is, even if the sub-frame 12F attempts to move (rotate) about the Z-axis by the first engagement mechanism M2, the movement (rotation) is restricted by the plurality of second main bending portions 112C of the second main frame 11C (the concave portion 124F is caught by the plurality of second main bending portions 112C). Thereby, the sub-frame 12F and the second main frame 11C are positioned about the Z-axis. Of course, this is not limited to the sub-frame 12F, and the same applies to the sub-frame 12G.

[0181] The engagement mechanism has a third engagement mechanism M3 that positions the front portion 13 and the sub-frames 12B to 12D and 12I about the Z-axis at any plurality of locations among the plurality of third intersection regions W3 where the front portion 13 intersects with the sub-frames 12B to 12D and 12I.

[0182] The third engagement mechanism M3 includes a first recess 1300A having a plurality of second opposing surfaces 1301A facing in the Y-axis direction provided on a plurality of first front bent surfaces 130B of the front portion 13, and a second engaging portion 125B provided on the sub-frame 12B and engaging with the first recess 1300A. Of course, this is not limited to the sub-frame 12B, and the same applies to the sub-frames 12C, 12D, and 12I.

[0183] That is, even if the sub-frame 12B attempts to move (rotate) about the Z-axis, the movement (rotation) is restricted by the first recess 1300A of the first front bent surface 130B (the second engaging portion 125B catches on the plurality of second opposing surfaces 1301A of the first recess 1300A). Thereby, the sub-frame 12B and the front portion 13 are positioned about the Z-axis. Of course, this is not limited to the sub-frame 12B, and the same applies to the sub-frames 12C, 12D, and 12I.

[0184] The engagement mechanism has a fourth engagement mechanism M4 that positions the rear portion 14 and the sub-frames 12B to 12D, 12I about the Z-axis at any plurality of locations among a plurality of fourth intersection regions W4 where the rear portion 14 intersects the sub-frames 12B to 12D, 12I.

[0185] The fourth engagement mechanism M4 includes a second recess 1400B having a plurality of third opposing surfaces 1401B facing in the Y-axis direction provided on a plurality of first rear bent surfaces 140B of the rear portion 14, and a second engaging portion 126B provided on the sub-frame 12B and engaging with the second recess 1400B. Of course, this is not limited to the sub-frame 12B, and the same applies to the sub-frames 12C, 12D, and 12I.

[0186] That is, even if the sub-frame 12B attempts to move (rotate) about the Z-axis by the fourth engagement mechanism M4, the movement (rotation) is restricted by the second recess 1400A of the first rear bending surface 140B (the second engaging portion 126B catches on the plurality of third opposing surfaces 1401A of the second recess 1400A). As a result, the sub-frame 12B and the rear portion 14 are positioned about the Z-axis. Of course, this is not limited to the sub-frame 12B, and the same applies to the sub-frames 12C, 12D, and 12I.

[0187] [Door portion] FIG. 11 is a perspective view of the door portion 30, FIG. 12 is a cross-sectional view of the door portion 30, and FIG. 13 is a cross-sectional view of the elastic member 80. As shown in FIG. 1, the door portion 30 has a first door portion 30A and a second door portion 30B on the front surface portion 13 side. In the present embodiment, the length of the door portion 30 in the Y-axis direction is approximately 600 mm, but of course, it is not limited to this.

[0188] As shown in FIGS. 1, 11, and 12, the first door portion 30A has a door surface 31A parallel to the YZ plane, a door bending portion 32A extending in the negative X-axis direction from the four sides of the door surface 31A, and a handle portion 33A provided on the door surface 31A. In the present embodiment, the first door portion 30A is formed of iron, but of course, it is not limited to this. For example, it may be made of stainless steel (SUS), or not limited to metal, and may be made of resin.

[0189] The door surface 31A has a rectangular shape with a short side in the Z-axis direction and a long side in the Y-axis direction. The fastening fitting 33A is rotatable about the center in the X-axis direction. The fastening fitting 33A has a hook portion 331A provided inside the first door portion 30A (on the negative X-axis side with respect to the door surface 31A). Also, the shape of the door surface 31A is not limited to the above, and may be a rectangular shape with a long side in the Z-axis direction and a short side in the Y-axis direction, or may be a square shape.

[0190] When closing the first door portion 30A, in a state where the elastic member 80 described later is pressed against the flange 131B, the fastening fitting 33A is rotated, and the hook portion 331A is brought into contact (pressed contact) with the contact portion 131C, thereby maintaining the closed state of the door.

[0191] [Elastic member] The elastic member 80 is an annular sealing material that is attached to the first door portion 30A and abuts against the first opening end portion 131 when the door is closed. In the present embodiment, the elastic member 80 is formed of a packing, but of course it is not limited to this.

[0192] The elastic member 80 is provided in a rectangular ring shape inside the door surface 31A of the first door portion 30A (on the negative X-axis side with respect to the door surface 31A). Here, the elastic member 80 is in a state where the elastic member 80 is continuously formed, and a plurality of elastic members are adhered or combined to form a rectangular ring shape. Of course, it is not limited to this, and the elastic member 80 may be integrally formed as a single member (one piece) without joints.

[0193] As shown in FIG. 13, the elastic member 80 has a bottom portion 81 and a bulging portion 82. The bottom portion 81 is provided in a rectangular ring shape along the flange portion 131B and adheres to the door surface 31A. The bulging portion 82 is provided on the bottom portion 81 and bulges toward the negative X-axis side.

[0194] As described above, when closing the first door portion 30A, by closing the door with the bulging portion 82 being crushed toward the positive X-axis side, a sealed state can be formed with respect to the first door portion 30A. As shown in FIG. 12, although a hollow space is not formed in the cross section of the elastic member 80, for example, a hollow space may be provided in the bulging portion 82. Of course, it is not limited to this, and the cross-sectional shape of the elastic member 80 viewed from the Y-axis direction may be rectangular or square (without a convex shape).

[0195] [Mounting member] FIG. 14 is a perspective view of the mounting member 50, and FIG. 15 is a perspective view of the support member 50A. Further, FIG. 16 is a perspective view of the fixing tool 50C, FIG. 17 is a perspective view showing the mounting method of the fixing tool 50C, and FIG. 18 is an enlarged view of the fixing tool 50C and the support member 50A.

[0196] The attachment member 50 includes a support member 50A that supports a plurality of electrical devices 54, and a relay connector 50B provided on the support member 50A for supplying the power output from an external power source to each of the plurality of electrical devices 54. The attachment member 50 is fixed to the framework 10 by a fixture 50C via an attachment support member 50D. In the present embodiment, the attachment member 50 is formed of an aluminum frame.

[0197] (Support member) The support member 50A is parallel to the XZ plane and has a plurality of column frames 51 provided parallel to each other. The support member 50A is also parallel to the Y-axis direction, has a plurality of support frames 52 provided parallel to each other and provided between the plurality of column frames 51. The plurality of electrical devices 54A, 54B, and 54C are attached to the YZ plane of the plurality of support frames 52 or are attached in a three-dimensional shape spanning between the plurality of support frames 52. In the present embodiment, the support member 50A is an aluminum frame.

[0198] As shown in FIGS. 14 and 15, the plurality of column frames 51 include a first column frame 51A that extends along the Z-axis direction and has a plane parallel to the XZ plane, and a second column frame 51B that extends along the Z-axis direction and has a plane parallel to the XZ plane and faces the Y-axis direction.

[0199] As shown in FIGS. 14 and 15, the plurality of support frames 52 are provided to connect between the first column frame 51A and the second column frame 51B, and are "C"-shaped frames having an opening in the negative direction of the Y-axis. The plurality of support frames 52 include a first support frame 52A, a second support frame 52B, a third support frame 52C, and a fourth support frame 52D in order from the positive direction side of the Z-axis. In the present embodiment, the plurality of support frames 52 are four frames, but of course, it is not limited to this, and there may be three or five frames.

[0200] The first support frame 52A has a rectangular first hole portion 522A to which a fixture 50C described later is attached on the negative Y-axis side, and a circular second hole portion 521A on the positive Y-axis side of the first hole portion 522A. Further, the first support frame 52A has a rectangular first hole portion 523A to which the fixture 50C is attached on the positive Y-axis side, and a circular second hole portion 524A on the negative Y-axis side of the first hole portion 523A.

[0201] Also, the fourth support frame 52D has a rectangular first hole portion 522D to which the fixture 50C is attached on the negative Y-axis side, and a circular second hole portion 521D on the positive Y-axis side of the first hole portion 522D. Further, the fourth support frame 52D has a rectangular first hole portion 523D to which the fixture 50C is attached on the positive Y-axis side, and a circular second hole portion 524D on the negative Y-axis side of the first hole portion 523D.

[0202] Also, when the first support frame 52A and the first attachment support member 501D are fixed by the fixture 50C described later, a part of the fixture 50C is configured to be visible from the above-described second hole portion 521A. Of course, this is not limited to the second hole portion 521A, and the same applies to the second hole portions 524A, 521D, and 524D.

[0203] The second support frame 52B is provided on the negative side of the first support frame 52A in the Z-axis direction, and includes a first frame 521B extending along the Y-axis direction, a second frame 522B provided on the negative Y-axis side of the first frame 521B and extending in the Z-axis direction, a third frame 523B provided on the positive Z-axis side of the second frame 522B and connected to the second column frame 51B and extending along the Y-axis direction, and a fourth frame 524B provided on the negative Z-axis side of the second frame 522B and connected to the second column frame 51B and extending along the Y-axis direction.

[0204] As shown in FIG. 14, on the second support frame 52B, a first electrical device 54A attached to the first frame 521B and a third electrical device 54C attached to the third frame 523B and the fourth frame 524B are attached. Examples of the attachment method include, but are not limited to, the method using the DIN rail D, such as screwing.

[0205] In this embodiment, the DIN rail D is attached to the third support frame 52C, and the second electrical device 54B corresponding to the DIN rail D is attached to the DIN rail D. Thereby, since screw fastening can be reduced, the working efficiency can be improved.

[0206] As shown in FIG. 14, the third support frame 52C is provided on the negative direction side of the second support frame 52B in the Z-axis direction, extends along the Y-axis direction, and is provided (connected) between the first pillar frame 51A and the second pillar frame 51B. A second electrical device 54B is attached to the third support frame 52C.

[0207] The first electrical device 54A, the second electrical device 54B, and the third electrical device 54C are not particularly limited, and are, for example, circuit breakers.

[0208] (Mounting support member) As shown in FIG. 3, the mounting support member 50D is a frame having a first mounting support member 501D and a second mounting support member 502D.

[0209] As described above, the first mounting support member 501D is a frame connected to the mounting member connection holes 115C, 115D, and 115E. Also, as described above, the second mounting support member 502D is connected to the mounting member connection holes 116C, 116D, and 116E. The mounting support member 50D is fixed to the second main frames 11C, 11D, and 11E by, for example, bolts and nuts.

[0210] The first mounting support member 501D has a corresponding hole 5012D corresponding to the first hole 522A provided in the first support frame 52A. Although not shown, the first mounting support member 501D further has corresponding holes corresponding to the second hole 521A, the first hole 523A, and the second hole 524A.

[0211] The second mounting support member 502D has holes corresponding to the first hole 522D, the second hole 521D, the first hole 523D, and the second hole 524D provided in the fourth support frame 52D.

[0212] Here, "corresponding" means that it is configured to be provided so as to penetrate when viewed from the X-axis direction.

[0213] (Relay connector) As shown in FIG. 13, the relay connector 50B is attached to the support member 50 (the third support frame 52C). The relay connector 50B is a connector for supplying the power supplied from an external power source via the external wiring 90 to the electric devices 54A, 54B, and 54C via the internal wirings 53A and 53B. Here, the external wiring 90 is inserted inside through the cylindrical portion 90A provided in the wiring hole 133.

[0214] Here, the cylindrical portion 90 has a packing (not shown) having an external wiring hole into which the wiring hole 133 is fitted and through which the external wiring 90 is inserted. In the present embodiment, the packing has one external wiring hole, and the external wiring hole is configured to pass the external wiring 90 having an outer diameter equal to or larger than the hole diameter of the external wiring hole. Thereby, a waterproof structure can be imparted to the hole through which the external wiring 90 passes. In the present embodiment, the structure is such that one external wiring hole is provided in one packing, but the present invention is not limited to this, and two or more external wiring holes may be provided according to the number of the external wirings 90 to be inserted.

[0215] The relay connector 50B is configured such that an external wiring 90 having a first connector formed in the same shape and internal wirings 53A and 53B having a second connector are fitted and connected. The first connector (not shown) is fitted and connected from one end side of the housing of the relay connector 50B, and the second connector (not shown) is fitted and connected from the other end side of the housing of the relay connector 50B. For this reason, insertion ports into which the first connector and the second connector are respectively inserted and fitted are formed at one end side and the other end side of the housing of the relay connector 50B. The insertion ports provided at one end side and the other end side of the housing of the relay connector 50B open in a direction parallel to the direction in which the first connector and the second connector are fitted.

[0216] In this embodiment, power is supplied from the two external wirings 90 gathered together, through the relay connector 50B, to the first internal wiring 53A and the second internal wiring 53B, and then to the electric devices 54A, 54B, and 54C. Of course, the number of the external wirings 90 is not limited to this, and may be three or four. Also, in this embodiment, power is supplied from the first internal wiring 53A to the first electric device 54A and from the second internal wiring 53B to the second electric device 54B. Of course, this is not limited to this, and the configuration may be such that two internal wirings 53 are connected to the first electric device 54A and three internal wirings 53 are connected to the second electric device 54B. The arrangement of the relay connector 50B is not limited to the third support frame 52C, and may be the second support frame 52B.

[0217] [Fastening tool] As shown in FIGS. 14 to 18, the fastening tool 50C is a panel fastener and includes a mounting plate 501C, a bearing member 502C attached to the mounting plate 501C, and a pair of hooks 503C. Hereinafter, the fastening tool 50C attached to the first hole 522A will be described. Of course, this is not limited to this, and the case of being attached to the first holes 524A, 522D, and 524D is the same as that of the first hole 522A.

[0218] The mounting plate 501C has a first mounting surface 5011C which is a flat surface larger than the first hole portion 522A. The first mounting surface 5011C is a surface parallel to the YZ side surface and parallel to the first support frame 52A. The mounting plate 501C also has a second mounting surface 5012C on the side opposite to the first mounting surface 5011C.

[0219] The bearing member 502C is attached to the first mounting surface 5011C and rotatably supports a pair of hooks 503C described later. The bearing member 502C is configured to be smaller than the first hole portion 522A and the first mounting hole 1121A when viewed from the X-axis direction.

[0220] The pair of hooks 503C is rotatably supported by the bearing member 502C described above about the Z-axis. The pair of hooks 503C is configured to be larger than the first hole portion 522A and the first mounting hole 1121A when viewed from the X-axis direction. The pair of hooks 503C is held at a position protruding from the bearing member 502C when viewed from the Z-axis direction by a coil.

[0221] When the fixture 50C is inserted through the first hole portion 522A and the first mounting hole 1121A, the pair of hooks 503C is inserted while being pushed inward by the frames of the first hole portion 522A and the first mounting hole 1121A.

[0222] When the first mounting surface 5011C abuts against the first support frame 52A, the pair of hooks 503C protrudes outward by the force of the spring. As a result, the pair of hooks 503C is locked to the first mounting support member 501D, and the first support frame 52A is fixed to the main frame 11. Also, when the first support frame 52A and the first mounting support member 501D are fixed by the fixture 50C as described above, the pair of hooks 503C is configured to be visible to the operator from the second hole portion 521A described above (see FIG. 18).

[0223] A pair of hooks 503C may be provided with a mark at a position visible from the second hole 521A. Here, the mark is, for example, a red line or a fluorescent paint. This makes it easier for the operator to visually recognize the pair of hooks 503C.

[0224] The fixture 50C has a release portion 504C that allows a pair of hooks 503C to be accommodated within the bearing member 502C on the second mounting surface 5012C. The pair of hooks 503C are accommodated within the bearing member 502C by rotating the release portion 504C about the X-axis direction. The release portion 504C is rotated using a handle member or the like for rotating the release portion 504C. This enables attachment and detachment between the first mounting support member 501D and the attachment member 50.

[0225] [Third connecting member] As shown in FIGS. 1 to 4, the third connecting member 60 connects the main frame 11 and the sub-frame 12.

[0226] In the present embodiment, the third connecting member 60 is a rivet, and more specifically, a flat head rivet.

[0227] [Second connecting member] As shown in FIG. 9, the second connecting member 70 connects a plurality of first main frames 11A, 11B and a plurality of second main frames 11C, 11D, 11E.

[0228] The connection points are a plurality of first bent connection holes 114A and second bent connection holes 114C, 113D, 114E, and a plurality of first bent connection holes 113B and second bent connection holes 114C, 113D, 114E. In the present embodiment, the second connecting member 70 is a rivet, and more specifically, a round head rivet.

[0229] [First connecting member] As shown in FIGS. 1 to 4, the first connecting member T connects the framework 10 and the first side surface portion 22 and the second side surface portion 23.

[0230] Insert the first connecting member T into a plurality of first side surface connecting holes 22A to connect the sub-frames 12A, 12F, 12H and the second main frame 11C to the first side surface portion 22.

[0231] Also, insert the first connecting member T into a plurality of second side surface connecting holes 23A to connect the sub-frames 12E, 12G, 12J and the second main frame 11E to the second side surface portion 23.

[0232] In this embodiment, the first connecting member T is a rivet, and more specifically, a waterproof rivet. Thereby, the airtightness of the housing device 1 can be enhanced.

[0233] (Manufacturing method of the housing device) Subsequently, a manufacturing method of the housing device 1 of this embodiment configured as described above will be described.

[0234] The manufacturing method of the housing device 1 in this embodiment includes a step of assembling the framework structure 10, a step of attaching the attachment member 50 to the framework structure 10, and a step of assembling the plate portion 20 and the door portion 30 to the framework structure 10 to which the attachment member 50 is attached.

[0235] The step of assembling the framework structure 10 will be described (see FIGS. 5 to 9). First, the main frame body 11 is assembled (see FIGS. 8 and 9). As described above, the main frame body 11 connects and fixes the first main frames 11A and 11B and the second main frames 11C, 11D, and 11E with the second connecting member 70. Thereby, the main frame 11 is assembled as shown in FIG. 8.

[0236] At this time, the connection method between the first main frames 11A and 11B and the second main frames 11C, 11D, and 11E may be not only the second connecting member 70 but also fillet welding at the locations connected by the second connecting member 70.

[0237] Next, the sub-frame 12 is connected to the main frame body 11 (see FIGS. 6 and 7). The connection (assembly) of the main frame body 11 and the sub-frame 12 is connected and fixed by the third connecting member 60 as described above.

[0238] At this time, fillet welding may be performed at the contact portion between the main frame body 11 and the sub-frame 12.

[0239] Next, the bottom surface portion 40, the front surface portion 13, and the rear surface portion 14 are connected to the main frame body 11 and the sub-frame 12 (skeleton assembly 10A) (see FIG. 5). The main frame body 11 and the sub-frame 12 are fixed (connected), welded, or adhered to the bottom surface portion 40 by bolts and nuts, welding, or an adhesive. Further, the sub-frame 12 (for example, the first engaging portions 125B and 126B) is welded to the front surface portion 13 and the rear surface portion 14 by welding. Also, the bottom surface portion 40, the front surface portion 13, and the rear surface portion 14 are fixed (connected), welded, or adhered by bolts and nuts, welding, or an adhesive. Thereby, the frame structure 10 is assembled.

[0240] Next, the process of attaching the attachment member 50 to the frame structure 10 will be described (see FIGS. 3, 5, 13 to 17). First, the attachment support member 50D is attached to the frame structure 10 inside the frame structure 10 in the state shown in FIG. 5 (see FIG. 3. However, in this embodiment, the side surface portions 22 and 23 are not attached at this stage).

[0241] Next, the attachment member 50 is inserted into the frame structure 10 in the state shown in FIG. 5. The direction in which the attachment member 50 is inserted into the frame structure 10 (the X-axis direction, the Y-axis direction, or the Z-axis direction) is not particularly limited. However, in this embodiment, the attachment member 50 is inserted from the X-axis direction (the front surface portion 13 or the rear surface portion 14).

[0242] Next, an attachment member 50 having an electric device 54, an internal wiring 53, and a relay connector 50B is attached to the framework 10 via an attachment support member 50D (see FIGS. 3 and 15 to 19). The attachment support member 50D and the attachment member 50 are fixed, for example, at four locations by a fixture 50C as described above. Thereby, the attachment member 50 is attached via the attachment support member 50D attached to the framework structure 10.

[0243] Next, as shown in FIG. 18, the user checks whether a part (a pair of hooks 503C) of the fixture 50C is visible when viewed from the second hole 521A. As shown in FIG. 18, when a part (a pair of hooks 503C) of the fixture 50C is visible when viewed from the second hole 521A, it is determined that the attachment member 50 is attached to the attachment support member 50D (framework structure 10).

[0244] Next, a cylindrical portion 90A is attached to a plurality of wiring holes 133, and an external wiring 90 is connected to the relay connector 50B via the cylindrical portion 90A.

[0245] Next, a process of assembling a plate portion 20 and a door portion 30 to the framework structure 10 to which the attachment member 50 is attached will be described (see FIGS. 1 to 4). First, as described above, the first side surface portion 22 and the second side surface portion 23 are connected to the framework structure 10 by a first connecting member T.

[0246] Next, the upper surface portion 21 is connected to the framework structure 10 to which the first side surface portion 22 and the second side surface portion 23 are attached by bolts B and nuts N as described above.

[0247] Next, the door portion 30 is attached to the front surface portion 13 and the rear surface portion 14. Thereby, the plate portion 20 and the door portion 30 are assembled to the framework structure 10, and the housing device 1 is assembled (see FIG. 1).

[0248] As described above, it becomes possible to attach the attachment member 50 to the framework structure 10 before connecting the plate portion 20 to the framework structure 10. For this reason, when attaching the attachment member 50 to the framework structure 10, it becomes possible for an operator (user) to reach in from the Y-axis direction to support the attachment member 50 and perform alignment for connection. As a result, even if the attachment member 50 is heavy, the attachment work can be performed while being supported by multiple people, so that the efficiency of the attachment work of the attachment member 50 can be improved.

[0249] Since the main frame body 11 and the sub-frame 12 are connected by the third connecting member 60, it becomes possible to reduce the welding process. Thereby, the main frame body 11 and the sub-frame 12 can be easily fixed.

[0250] Since the first main frames 11A, 11B and the second main frames 11C, 11D, 11E are connected by the second connecting member 70, it becomes possible to reduce the welding process. Thereby, the first main frames 11A, 11B and the second main frames 11C, 11D, 11E can be easily fixed.

[0251] Furthermore, the framework 10 and the plate portion 20 are fixed by rivets. Thereby, since it becomes possible to reduce the welding work, the framework 10 and the plate portion 20 can be easily fixed. Also, the first main frames 11A, 11B and the second main frames 11C, 11D, 11E are similarly fixed by rivets. Thereby, since it becomes possible to reduce the fastening work by bolts and nuts or welding, the framework 10 and the plate portion 20 can be easily fixed.

[0252] When attaching the attachment member 50 to the attachment support member 50D (skeleton 10), it is possible to determine whether the attachment member 50 is securely attached to the attachment support member 50D (skeleton 10) by checking whether the pair of hooks 503C can be seen through the second hole 521A, which can be easily confirmed by the operator. Also, since the attachment member 50 is attached to the attachment support member 50D (skeleton 10) by the fixing tool 50C (panel fastener), the attachment member 50 can be easily attached to the attachment support member 50D (skeleton 10) without using bolts and nuts.

[0253] Since the skeleton 10 and the plate portion 20 are connected by the bolt B and the first connecting member T, it is possible to reduce the welding process. Thereby, the skeleton 10 and the plate portion 20 can be easily fixed. Also, a caulking material may be applied between the skeleton 10 and the plate portion 20, for example, by a caulking gun. In this case, it is applied to the portion where the skeleton 10 and the plate portion 20 are in contact. Thereby, the airtightness can be enhanced. Of course, it is not limited to a caulking gun, and a tape-like material that can be adhered may be used.

[0254] Also, the attachment member 50 has a relay connector 50B for supplying the power output from an external power source to each of the plurality of electric devices 54A, 54B, 54C. Thereby, it is not necessary to wire the external wiring 90 to each of the electric devices 54A, 54B, 54C, and it is only necessary to connect the external wiring 90 to the relay connector 50B, so that the working efficiency for the wiring can be improved.

[0255] Furthermore, since the attachment member 50 having the electric devices 54A, 54B, 54C with the internal wirings 53A, 53B arranged therein is attached to the skeleton 10, it is not necessary to perform the work of attaching the electric devices 54A, 54B, 54C within the skeleton 10. That is, since it is possible to attach the electric devices 54 and the internal wirings 53A, 53B to the support member 50A in advance and then attach it to the skeleton 10, the operator can efficiently perform the work of attaching the electric devices 54A, 54B, 54C.

[0256] In addition, as described above, since the mounting member 50 is composed of the column frame 51 and the support frame 52, the degree of freedom in arranging the electric equipment 54 can be increased. For example, a plate parallel to the XZ plane can be attached between the third frame 523B and the fourth frame 524B, and a plurality of second electric equipment 54C can be arranged side by side on both sides of the plate. That is, since the mounting member 50 has a three-dimensional structure, a three-dimensional arrangement of the electric equipment 54 can be achieved, and more electric equipment 54 can be accommodated.

[0257] In addition, as described above, since the mounting member 50 is composed of the column frame 51 and the support frame 52, a plurality of electric equipment 54 with different sizes can be easily arranged (see Fig. 13).

[0258] Since the mounting member 50 is formed of an aluminum frame, weight reduction and cost reduction can be achieved as compared with the case of processing and painting using sheet metal.

[0259] In addition, since the elastic member 80 is provided on the door portion 30 side and is a single piece, the attachment work of the elastic member 80 can be facilitated. Further, since the bulging portion 82 of the elastic member 80 is brought into contact with the flange portion 131B, the door portion 30 can be easily closed (for example, as compared with the case where a gasket is provided on the front surface portion 13 side and the door bending portion 32A is pressed against the gasket).

[0260] In addition, since the housing device 1 can maintain the strength of the box with the above-described framework structure 10, the thickness of the plate portion 20 can be reduced, so that the manufacturing cost can be suppressed.

[0261] In addition, as described above, since the main frame body 11 and the plurality of sub-frames 12A to 12J are engaged by the engaging mechanism, when assembled as the framework structure 10, rattling around the Z axis can be suppressed (deformation into a shape like a parallelogram can be suppressed).

[0262] Furthermore, as described above, since the front portion 13 and the rear portion 14 are engaged with the plurality of sub-frames 12A to 12J by the engaging mechanism, when assembled as the framework structure 10, rattling around the Z-axis can be further suppressed (suppressing deformation into a shape like a parallelogram).

[0263] That is, the framework structure 10 (framework 10A) can be easily positioned and fixed around the Z-axis and the Y-axis by simply engaging the recesses of the plurality of sub-frames 12A to 12J with the main frame body 11 and engaging the engaging portions of the main frame body 11 with the recesses of the front portion 13 and the rear portion 14.

[0264] Also, the first engaging portion 125F of the sub-frame 12F engages with a first recess 1300B having a plurality of second opposing surfaces 1301B facing in the Z-axis direction provided on the plurality of second front bending surfaces 130C. Thereby, the positioning of the first engaging portion 125F and the front portion 13 around the Y-axis can be achieved. The same applies not only to the sub-frame 12F but also to the sub-frame 12G.

[0265] <Second Embodiment> Subsequently, a second embodiment of the present invention will be described. FIG. 19 is a perspective view of the housing device 1' in the second embodiment with the door portion 30 and the upper surface portion 21 removed and a plurality of side surface portions 22, 23 removed. FIG. 20 is a perspective view of the main frame 11' in the second embodiment. FIG. 21 is a view of the first curtain rail portion 51R in the second embodiment, where (A) is a cross-sectional view of the first curtain rail portion 51R and (B) is a perspective view of the first curtain rail portion 51R. FIG. 22 is a perspective view of the support member 50A' and the first curtain rail portion 51R in the second embodiment. Hereinafter, the configurations different from those of the first embodiment will be mainly described, and the same configurations as those of the first embodiment will be denoted by the same reference numerals and their descriptions will be omitted or simplified.

[0266] The housing device 1' of this embodiment is different from the first embodiment in that a curtain rail portion 50R is attached to the main frame body 11'. The attachment member 50 includes a curtain rail portion 50R that extends along the Y-axis direction, is provided in parallel with each other, and is fixed to the main frame body 11' by a fixture B0, a first bolt B1 that is provided on the curtain rail portion 50R and is movable in the Y-axis direction, and a first nut N1 that fits with the first bolt B1.

[0267] Further, the main frame body 11' has rail connection holes 115C', 116C', 115D', 116D', 115E', 116E' through which the fixture B0 passes (see FIG. 22).

[0268] In this embodiment, the curtain rail portion 50R is provided between the second main frames 11C' and 11D' of the main frame body 11'. The curtain rail portion 50R has two rails in this embodiment, a first curtain rail portion 51R and a second curtain rail portion 52R. The first curtain rail portion 51R extends along the Y-axis direction, and one end in the Y-axis direction is connected to the second main frame 11D', and the other end in the Y-axis direction is connected to the second main frame 11C'. The second curtain rail portion 52R extends along the Y-axis direction, and one end in the Y-axis direction is connected to the second main frame 11D', and the other end in the Y-axis direction is connected to the second main frame 11C', and faces the first curtain rail portion 51R in the Z-axis direction.

[0269] Here, the fixing method of the curtain rail portion 50R to the main frame 11 will be described using the first curtain rail portion 51R and the second main frame 11D'.

[0270] As shown in FIGS. 19 to 21(A), one end (the negative direction side of the Y-axis) of the first curtain rail portion 51R is fixed to the second main frame 11D' via a fixture B0. The fixture 50C' is a bolt and nut (not shown) in this embodiment, but of course, it is not limited to this, and it may be a rivet.

[0271] The second main frame 11D' has a rail connection hole 115D through which the fixture B0 penetrates. Also, as shown in FIGS. 19 to 21(A), the other end (the positive Y-axis side) of the first curtain rail portion 51R is similarly fixed to the second main frame 11C' via the fixture B0. The second main frame 11C' has a rail connection hole 115C' through which the fixture B0 penetrates. The rail connection holes 115C' and 115D' are provided in a straight line in the Y-axis direction.

[0272] That is, the first curtain rail portion 51R is fixed to the second main frames 11C' and 11D' by the fixture B0 penetrating the first curtain rail portion 51R and the rail connection holes 115C' and 115D'.

[0273] The second curtain rail portion 52R is fixed to the main frame 11 in the same manner as the first curtain rail portion 51R.

[0274] Next, the fixing method of the curtain rail portion 50R and the support member 50A' will be described. The first curtain rail portion 51R has a first groove portion 501R in which the first bolt B1 is movable on the positive X-axis side (the front portion 13 or the support member 50A'). The second curtain rail portion 52R has a second groove portion 502R in which the second bolt B2 is movable on the positive X-axis side (the front portion 13 or the support member 50A').

[0275] The first groove portion 501R and the second groove portion 502R extend along the Y-axis direction and are provided at positions overlapping fastening holes 501A' and 502A' described later when viewed from the X-axis direction. The head of the first bolt B1 is slidably provided in the first groove portion 501R in the Y-axis direction. The head of the second bolt B2 is slidably provided in the second groove portion 502R in the Y-axis direction.

[0276] Further, the support member 50A' has a surface parallel to the Y-axis direction and is a rectangular support plate (plate-like) for supporting the electric device 54, and has a plurality of fastening holes 501A' at four rectangular corners. As shown in FIG. 21, the plurality of fastening holes 501A' are provided at positions overlapping the above-described first groove portion 501R and second groove portion 502R when viewed from the X-axis direction.

[0277] The first bolts B1 and B2 can be slid so as to be inserted into the plurality of fastening holes 501A', and the support member 50A' can be fixed using the first bolts B1 and B2 and the first nuts N1 and N2.

[0278] As described above, since the first bolts B1 and B2 are configured to be movable (slidable), it is not necessary to improve the accuracy of the interval between the plurality of fastening holes 501A' as compared with the case where the arrangement positions of the bolts are fixed. Therefore, the working efficiency when fixing the support member 50A' (mounting member) to the main frame 11' can be improved.

[0279] Also, in the present embodiment, the first bolts B1 and B2 penetrate and fix the plurality of fastening holes 501A', but the present invention is not limited to this. For example, the plurality of fastening holes 501A' may be notch portions cut in the Y-axis direction. Thereby, the working efficiency at the time of fixing can be further improved.

[0280] Also, in the present embodiment, the support member 50A' which is a support plate has been described, but of course, the present invention is not limited to this, and the support member 50A (see FIG. 15) may be used.

[0281] Furthermore, in the present embodiment, the curtain rail portion 50R is provided between the second main frames 11C' and 11D', but the present invention is not limited to this, and the curtain rail portion 50R may be provided between the second main frames 11D' and 11E'.

[0282] For example, the method of fixing the plate-shaped support member 50A' to the framework 10 may be the method using the panel fastener 50C described above in addition to the fixing by the curtain rail portion 50R. That is, similar to the support member 50A, the support member 50A' may be formed with a first hole portion to which the panel fastener 50C is attached and a second hole portion for confirming that the panel fastener 50C is sufficiently attached.

[0283] As described above, the embodiments of the present invention have been explained. However, the present invention is not limited to only the above-described embodiments, and it goes without saying that various modifications can be made, and the configurations of each embodiment and modification example may be combined. For example, in the present embodiment, the housing device 1 installed under the floor of the railway vehicle has been described. However, for example, it may be provided in a railway vehicle on-board device, an indoor / outdoor switchboard, a distribution box, an equipment room, or the like.

Explanation of reference numerals

[0284] 1…Housing device 10…Framework structure 11…Main frame body 12…Sub-frame 13…Front face portion 14…Rear face portion 20…Plate portion 21…Upper face portion 22…First side face portion 23…Second side face portion 30…Door portion 40…Bottom face portion 50…Attachment member 50A…Support member 50B…Relay connector 50C…Panel fastener 60…Third connecting member 70…Second connecting member 80…Elastic member

Claims

1. A housing device for housing an electrical device, a rectangular annular first frame member parallel to a first axial direction and a second axial direction orthogonal to the first axial direction; a plurality of second frame members extending in a third axial direction different from the first axial direction and orthogonal to the second axial direction and intersecting the first frame member; an engagement mechanism for positioning the first frame member and the plurality of second frame members about the second axis at any plurality of locations among a plurality of intersection regions where the first frame member and the plurality of second frame members intersect; having a framework structure comprising The first frame member is orthogonal to an intermediate portion of the plurality of second frame members extending in the third axial direction. Housing device.

2. The housing device according to claim 1, the first frame member having a plurality of first frame portions extending in the first axial direction and a plurality of second frame portions extending in the second axial direction; the plurality of intersection regions having at least one of a plurality of first intersection regions where the plurality of second frame members intersect each of the plurality of first frame portions and a plurality of second intersection regions where the plurality of second frame members intersect each of the plurality of second frame portions; Housing device.

3. The housing device according to claim 2, the engagement mechanism having a first engagement mechanism for positioning the plurality of first frame portions and the plurality of second frame members about the second axis at any plurality of locations among the plurality of first intersection regions; Housing device.

4. The housing device according to claim 2, The engaging mechanism has a second engaging mechanism that positions the plurality of second frame parts and the plurality of second frame members around the second axis at any plurality of locations among the plurality of second intersection regions. Containing device.

5. The containing device according to claim 1, The engaging mechanism includes a first recess provided at the middle part of the plurality of second frame members and having a plurality of first opposing surfaces opposing in the third axial direction, and a first engaging portion provided on the first frame member and engaging with the first recess. Containing device.

6. The containing device according to claim 1, The framework structure further includes a rectangular annular third frame member that intersects one end side of the plurality of second frame members and faces the first frame member. The engaging mechanism has a third engaging mechanism that positions the third frame member and the plurality of second frame members around the second axis at any plurality of locations among the plurality of third intersection regions where the third frame member and the plurality of second frame members intersect. Containing device.

7. The containing device according to claim 6, The third engaging mechanism includes a second recess provided on the third frame member and having a plurality of second opposing surfaces opposing in the first axial direction, and a second engaging portion provided on the plurality of second frame members and engaging with the second recess. Containing device.

8. The containing device according to claim 6, The framework structure further includes a rectangular annular fourth frame member that intersects the other end side of the plurality of second frame members and faces the first frame member. The engaging mechanism has a fourth engaging portion for positioning the fourth frame member and the plurality of second frame members around the second axis at any plurality of locations among a plurality of fourth intersection regions where the fourth frame member and the plurality of second frame members intersect. Containment device. **Claim 9** The containment device according to claim 1, wherein the plurality of second frame members are L-shaped when viewed from the third axial direction. Containment device. **Claim 10** The containment device according to claim 1, wherein the containment device is installed under the floor of a railway vehicle. Containment device. **Claim 11** The containment device according to claim 1, and the electrical equipment A equipment box comprising the same.

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