Frame structure of the box

Abstract

To provide a box frame structure with a space capable of storing multiple members inside a frame without increasing an external dimensions.SOLUTION: A box frame structure has a skeleton of a box formed of 12 frames. The multiple frames have a cross-sectional structure including outer edges that make up the outline of the box and inner edges positioned inside the outer edges. Between the outer edge and inner edge of two opposing frames, a storage part 50 is formed for storing multiple members. The storage part 50 may be partitioned into a first storage part 51 and a second storage part 52 by providing an intermediate edge between the outer edge and the inner edge.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to a frame structure of boxes such as work boxes and boxes for storing electrical equipment.

Background Art

[0002] As a frame structure of boxes such as work boxes and boxes for storing electrical equipment, twelve frames consisting of four vertical frames, four horizontal frames, and four depth frames are joined in a rectangular parallelepiped shape to form a front surface, a back surface, left and right side surfaces, a top surface, and a floor surface, which has been widely used conventionally. By attaching panels to each surface, a work space where people can enter inside and a space for storing electrical and electronic equipment are formed.

[0003] Patent Document 1 describes a frame structure of a box for storing electrical equipment. In this Patent Document 1, a vertical frame obtained by bending a metal plate into a special hollow cross-sectional shape having a large number of sides is used, and an outer panel is attached to the outer side thereof to form a box for storing electrical equipment. However, a row of holes for mounting equipment is formed on a large number of sides located inside the box, and internal equipment is mounted using these hole rows, and it does not have a structure that forms a space capable of storing a plurality of members such as an outer panel, an inner panel, a sound-absorbing material, an equipment mounting panel, and a door.

[0004] Further, Patent Document 2 describes a work box in which a storage space is formed further outside a frame structure formed in a rectangular parallelepiped shape, and an outer panel, a soundproof material, electrical and electronic equipment, etc. are stored. However, forming a space further outside the frame structure may cause problems such as an increase in the outer dimensions and a need for extra installation space, which is not preferable.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] Therefore, an object of the present invention is to solve the above-described conventional problems and provide a frame structure of a box that forms a space capable of accommodating a plurality of members inside the frame without increasing the outer dimensions.

Means for Solving the Problems

[0007] The present invention made to solve the above problems forms the skeleton of a box with 12 frames Meanwhile, between adjacent frames, a member located on the outer surface of the box and a member located on the inner surface of the box are arranged A frame structure of a box, wherein a plurality of frames have a cross-sectional structure including an outer side forming the outer contour of the box, an inner side located more inside than the outer side, and an intermediate side between the outer side and the inner side, and between the outer side and the intermediate side of two opposing frames, a first storage portion for storing a member located on the outer surface of the box is formed, and between the intermediate side and the inner side, a second storage portion for storing a member located on the inner surface of the box is formed, and the intermediate side is used as a first regulating portion for regulating the position of the member stored in the first storage portion, and the inner side is used as a second regulating portion for regulating the position of the member stored in the second storage portion.

[0008] Incidentally The cross-sectional structure of the frame can also be a line-symmetric shape.

Effects of the Invention

[0009] According to the frame structure of the present invention, it is possible to form a space capable of accommodating a plurality of members inside the frame without increasing the outer diameter dimensions.

Brief Description of the Drawings

[0010]

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Modes for Carrying Out the Invention

[0011] Embodiments of the present invention will be described below. The embodiments described below are the frame structure of a work box. As shown in FIG. 1, the frame structure of the box of the present invention is formed by joining 12 frames consisting of 4 vertical frames 10, 4 horizontal frames 11, and 4 depth frames 12 in a rectangular parallelepiped shape. By attaching panels, doors, etc. to each of the front, back, left and right side surfaces, top surface, and bottom surface, an internal space is formed. Each frame is made of metal to ensure strength, but it may be an extruded metal or a bent metal plate.

[0012] (Vertical Frame) The vertical frame 10 is a frame extending in the vertical direction of the box, and its upper and lower ends are connected to the horizontal frame 11 and the depth frame 12 as shown in FIG. 2. 13 is a corner plate covering the end face of the vertical frame 10. The horizontal cross-sectional shape of the vertical frame 10 is substantially figure-eight shaped as shown in FIG. 3.

[0013] 14 is the first side forming the corner of the box outline. The second side 15 is formed in a 45-degree direction from both ends of the first side 14, and these first side 14 and second side 15 constitute the box outline. At the end of the second side 15, the third side 16 is formed in a 90-degree direction inward. A first groove 17 is formed on one side of the third side 16.

[0014] From the end of the third side 16, the fourth side 18 is formed parallel to the second side 15, and a second groove 19 is formed on the fourth side 18. From the end of the fourth side 18, the fifth side 20 is formed in a 90-degree direction parallel to the third side 16, and a third groove 21 is formed on the fifth side 20.

[0015] At the end of the fifth side 20, a sixth side 22 and a seventh side 23 are formed in a 90-degree direction parallel to the second side 15 and the fourth side 18, and the two seventh sides 23 are connected at a right angle to form a corner of the inner space. Also, a fourth groove 24 is formed in the seventh side 23. The sixth side 22 and the seventh side 23 are inner sides facing the inner space of the box, and the fourth groove 24 is a mounting portion for mounting a member disposed in the inner space of the box.

[0016] As shown in the figure, a connecting side 25 parallel to the first side 14 is formed at the connecting portion between the third side 16 and the fourth side 18, partitioning a first hollow space 26 surrounded by the first side 14, the second side 15, and the third side 16, and a second hollow space 27 surrounded by the fourth side 18, the fifth side 20, and the seventh side 23. An arc-shaped first mounting portion 28 is formed inside the first hollow space 26. The vertical frame 10 is an extruded material and has the same cross-sectional shape over its entire length.

[0017] (Horizontal Frame and Depth Frame) The horizontal frame 11 and the depth frame 12 have the same cross-sectional shape shown in FIG. 4. These are also extruded materials and have the same cross-sectional shape over their entire lengths. 30 is a first side constituting the outer contour of the front, left and right sides, back, etc. of the box, and 31 is a second side formed in a 90-degree direction toward the inside of the box. A first groove 32 is formed in the second side 31. 33 is a third side formed parallel to the first side 30 from the end of the second side 31, and a second groove 34 is formed in the third side 33. 35 is a fourth side formed parallel to the second side 31 from the end of the third side 33, and a third groove 36 is formed in it. 37 is a fifth side formed in a 90-degree direction at the end of the fourth side 35, and 38 is a sixth side formed in a 90-degree direction at the end of the fifth side 37 and connected to the first side 30.

[0018] (Connection between Frames) Figures 5 and 6 show the details of the connection parts between the frames. The vertical frame 10, the horizontal frame 11, and the depth frame 12 are in contact with each other at their ends and are connected by a connecting fitting 40. The connecting fitting 40 is in the shape of a right triangle. One side perpendicular to the other is in contact with the fifth side 20 of the vertical frame 10 and is fixed to a nut 41 inserted into the third groove 21 of the vertical frame 10 by a bolt 42. The other side perpendicular to the other is in contact with the third side 33 of the horizontal frame 11 and the depth frame 12 and is fixed to a nut inserted into the second groove 34 by a bolt 43.

[0019] The end face of the vertical frame 10 to which the horizontal frame 11 and the depth frame 12 are connected in this way is covered by the corner plate 13 described above. A plurality of mounting holes are formed in the corner plate 13. The first mounting hole 44 corresponds to the first mounting portion 28 of the vertical frame 10 and is fixed with a bolt. The second mounting hole 45 and the third mounting hole 46 are fixed to nuts inserted into the third groove 36 of the horizontal frame 11 and the depth frame 12 with bolts. A nut is welded to the back surface of the fourth mounting hole 47, and an eyebolt for lifting when transporting the box can be attached. Also, in the horizontal frame 11 and the depth frame 12 located on the bottom surface side, the fourth mounting hole 47 is used for attaching an adjuster for fixing to the installation surface.

[0020] (Storage section) As described above, 12 frames are connected to form the skeleton of the box. As shown in FIG. 7, the second side 15 of the vertical frame 10 is an outer side located outside the box, the sixth side 22 and the seventh side 23 are inner sides located in the internal space of the box, and the fourth side 18 is an intermediate side. Then, a storage section 50 for storing a plurality of members is formed between the outer sides (second side 15) and the inner sides (sixth side 22, seventh side 23) of the two vertically arranged vertical frames 10. The storage section 50 includes a first storage section 51 formed between the outer side (second side 15) and the intermediate side (fourth side 18), and a second storage section 52 formed between the intermediate side (fourth side 18) and the inner side (sixth side 22, seventh side 23).

[0021] (Right side panel) FIG. 8 is an exploded perspective view of the right side panel of the box. 53 is the outer panel, and 54 is the sound-absorbing material. As shown in FIGS. 9 and 10 which are horizontal cross-sectional views, in the first storage portion 51 formed between the two vertical frames 10, A member located on the outer surface of the box the outer panel 53 is stored and attached, and in the second storage portion 52, A member located on the inner surface of the box the sound-absorbing material 54 is stored and attached. At this time, it is not necessary for all of the sound-absorbing material 54 to fit within the second storage portion 52, and a part of it may be located in the first storage portion 51. In actual installation, first, the sound-absorbing material 54 is stored in the second storage portion 52 from the outside. At this time, the sixth side 22 of the two vertical frames 10 acts as the second restricting portion to restrict the sound-absorbing material 54 from moving into the internal space of the box. After storing the sound-absorbing material 54, the outer panel 53 is stored and attached to the first storage portion 51. Also, the fourth side 18 which is the intermediate side of the two vertical frames 10 acts as the first restricting portion to restrict the position of the member stored in the first storage portion 51.

[0022] FIG. 11 shows the attachment structure of the upper and lower ends of the outer panel 53. As shown in the lower part of FIG. 11, the outer panel 53 is a plate-like member, and a horizontal first bent side 55 and a second bent side 56 with its tip bent downward are formed at its lower end. The second bent side 56 is inserted into the first groove 32 of the depth frame 12 on the bottom surface side. Also, as shown in the upper part of FIG. 11, a horizontal third bent side 57 and a fourth bent side 58 with its tip bent upward are formed at the upper end of the outer panel 53. A bolt 59 is passed through the bolt hole provided in the fourth bent side 58 and fixed using the nut inserted into the second groove 19 of the vertical frame 10.

[0023] (Left side panel) The right side panel of the box described above has the simplest structure with only the sound-absorbing material 54 attached to the second storage part 52. However, the left side panel of the box shown in FIGS. 12 and 13 has a structure in which the sound-absorbing material 54 is removed and the desk 60 is attached. The desk 60 may have a foldable structure. As shown in FIG. 13, the desk 60 has a side 90 that abuts against the seventh side 23 of the two vertical frames 10. One surface of the substantially L-shaped desk mounting bracket 91 (see FIG. 22) is brought into contact with the sixth side 22 and the seventh side 23, which are the inner sides, and is inserted into the fourth groove 24, which is a mounting part for attaching a member disposed in the internal space of the box formed on the inner side. It is fixed by a bolt 92 to a nut. Also, the other surface of the desk mounting bracket 91 is brought into contact with the back surface of the desk 60 and fixed by screws or the like, thereby attaching the desk 60 to the vertical frame 10. The sound-absorbing material 54 is not attached to the left side panel, and the left side inner panel 93 divided vertically is stored in the second storage part 52. Note that the side 90 of the desk 60 abuts against the seventh side 23 of the two vertical frames 10 and also abuts against the left side inner panel 93.

[0024] (Rear panel) The rear panel shown in FIGS. 14 and 15 is provided with an equipment mounting panel 61 on the inner surface side of the box. The equipment mounting panel 61 is a panel on which lighting fixtures, ventilation devices, switches 62 for air conditioning devices provided on the ceiling surface of the box, power outlets 63 for connecting plugs for supplying power to personal computers, mobile terminals, etc. used in the box, and power supply devices such as USB power outlets 64 are installed. Other video devices, audio devices, communication devices, ventilation devices, air conditioning devices, etc. can also be attached. The horizontal width of the equipment mounting panel 61 is about 1 / 3 of the total width of the box, and the sound-absorbing material 54 divided vertically is arranged in the remaining 2 / 3 part. Note that the outer panel 65 is also divided vertically, but it can also be a single undivided plate.

[0025] As shown in Fig. 15, a space 66 is formed between the equipment mounting panel 61 and the outer panel 65. In this space 66, power distribution equipment such as breakers and terminal blocks is installed to distribute power to the electrical equipment in the box. Wiring is drawn in through an opening provided in the floor surface of the box.

[0026] When the outer panel 65 is divided vertically as in this embodiment, the protruding edge provided at the lower end of the lower outer panel 65 is inserted into the first groove 32 of the lower horizontal frame 11, and the left and right ends are fixed with bolts to nuts inserted into the second groove 19 of the vertical frame 10. A slit 68 is provided on the upper end surface of the lower outer panel 65, and a protruding edge 69 that is inserted into the slit 68 is formed at the lower end of the upper outer panel 65. The upper outer panel 65 inserts the protruding edge 69 into the slit 68 of the lower outer panel 65, and the left and right ends are fixed with bolts to nuts inserted into the second groove 19 of the vertical frame 10. In this rear panel, the outer panel 65 is housed and attached in the first storage portion 51 formed between the two vertical frames 10, and a sound-absorbing material 54 and the equipment mounting panel 61 are attached to the second storage portion 52. Here, the sound-absorbing material 54 housed in the second storage portion 52 has its position regulated by the equipment mounting panel 61 at one end thereof, and its position is regulated by a regulating fitting 67 provided so as to abut against the fifth side 20 of the vertical frame 10 at the other end thereof.

[0027] (Front Panel) The front panel shown in Figs. 16 and 17 is provided with a door 70. First, a mounting bracket 72 extending in the left-right direction is fixed with bolts to a nut inserted into the first groove 32 of the upper horizontal frame 11 on the front side. The upper end of a vertically long plate 73 extending in the vertical direction is fixed to the lower part of this mounting bracket 72.

[0028] The door 70 is attached to the side of this plate 73. The door 70 is supported by hinges 74 so as to be openable and closable with respect to the vertical frame 10. Engaging portions with the handle 75 of the door 70 and with a locking device 76 are formed on the plate 73.

[0029] On the left side of the plate 73, a front outer panel 78 and a front inner panel 79 are attached. The lower end of the front outer panel 78 is fixed by bolts to a nut inserted into the first groove 32 of the front lower horizontal frame 1. A protruding edge 80 is provided at the lower end of the front inner panel 79 and is inserted into the first groove 32 of the front lower horizontal frame 11. Also, the upper ends of the front outer panel 78 and the front inner panel 79 are fixed to the mounting bracket 72 by bolts.

[0030] FIG. 18 shows a state in which panels are attached to the four surfaces described above. For the right side and the back, an outer panel is attached to the first storage portion 51 formed between two vertically arranged frames 10 arranged opposite to each other, and a sound-absorbing material 54 is attached to the second storage portion 52. For the right side, an outer panel is attached to the first storage portion 51 and an inner panel is attached to the second storage portion 52. Also, for the front, a door 70 is attached to the first storage portion 51.

[0031] In addition, a ceiling surface 81 and a floor surface 82 are further attached to the above-described box skeleton to form a work box shown in FIGS. 19, 20, 21, and 22. Since the ceiling surface 81 and the floor surface 82 are not the main parts of the present invention, the description thereof is omitted.

[0032] In the embodiment described above, the vertical frame 10 having the cross-sectional shape shown in FIG. 3 is used. However, the cross-sectional shape of the vertical frame 10 is not limited to that shown in FIG. 3. As shown in FIG. 23, the vertical frame 10 may have a line-symmetric shape with respect to a line passing through the center of the first side 14 and perpendicular to the first side 14. Also, an arc-shaped second attachment portion 29 may be formed inside the second hollow space 27.

[0033] As described above, according to the frame structure of the box of the present invention, a space for accommodating a plurality of members is formed inside the frame. Therefore, various members such as an outer panel, an inner panel, and a sound-absorbing material can be accommodated and attached without increasing the outer dimensions. In the above-described embodiment, the frame structure of the work box has been described, but the present invention can also be applied to a box for accommodating electrical equipment.

Description of Symbols

[0034] 10 Vertical Frame 11 Horizontal Frame 12 Depth Frame 13 Corner Plate 14 First Side 15 Second Side 16 Third Side 17 First Groove 18 Fourth Side 19 Second Groove 20 Fifth Side 21 Third Groove 22 Sixth Side 23 Seventh Side 24 Fourth Groove 25 Connecting Side 26 First Hollow Space 27 Second Hollow Space 28 First Mounting Portion 29 Second Mounting Portion 30 First Side 31 Second Side 32 First Groove 33 Third Side 34 Second Groove 35 Fourth Side 36 Third Groove 37 Fifth Side 38 Sixth Side 40 Connecting Fitting 41 Nut 42 Bolt 43 Bolt 44 First Mounting Hole 45 Second Mounting Hole 46 Third Mounting Hole 47 Fourth Mounting Hole 50 Storage Portion 51 First Storage Portion 52 Second Storage Portion 53 Outer Panel 54 Sound Absorbing Material 55 First Bent Side 56 Second Bent Side 57 Third Bent Side 58 Fourth Bent Side 59 Bolt 60 Desk 61 Machine mounting panel 62 Switch 63 Outlet 64 USB outlet 65 Outer panel 66 Space 67 Regulatory fitting 68 Slit 69 Protruding edge 70 Door 72 Mounting fitting 73 Plate 74 Hinge 75 Handle 76 Locking device 78 Front outer panel 79 Front inner panel 80 Protruding edge 81 Ceiling surface 82 Floor surface 90 Side 91 Desk mounting fitting 92 Bolt 93 Left side inner panel

Claims

1. A box frame structure in which a framework of a box is formed by 12 frames, and members located on the outer surface of the box and members located on the inner surface of the box are arranged between adjacent frames, wherein the plurality of frames include outer sides that constitute the outer contour of the box, inner sides that are located more inward than the outer sides, and have a cross-sectional structure including intermediate sides between the outer sides and the inner sides, a first storage portion for storing members located on the outer surface of the box is formed between the outer sides and the intermediate sides of two opposing frames, a second storage portion for storing members located on the inner surface of the box is formed between the intermediate sides and the inner sides, the intermediate side is used as a first regulating portion for regulating the position of the members stored in the first storage portion, and the inner side is used as a second regulating portion for regulating the position of the members stored in the second storage portion. A box frame structure characterized by this.

2. The box frame structure according to claim 1, characterized in that the outer side and the inner side are parallel to each other.

3. The box frame structure according to claim 1 or 2, characterized in that the cross-sectional structure of the frame is a line-symmetric shape.

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