JP2023000541A - box frame structure - Google Patents

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 The present invention relates to a frame structure for a box such as a work box or a box for storing electrical equipment.

As a frame structure for boxes such as work boxes and electrical equipment storage boxes, 12 frames consisting of 4 vertical frames, 4 horizontal frames, and 4 deep frames are combined in a rectangular parallelepiped shape. , front surface, rear surface, left and right side surfaces, top surface, and floor surface are conventionally widely used. By attaching a panel to each side, a working space in which people can enter and a space for storing electric and electronic equipment are formed.

Patent Literature 1 describes a frame structure of an electrical equipment storage box. In Patent Literature 1, a vertical frame formed by bending a metal plate into a special hollow cross-sectional shape with many sides is used, and outer panels are attached to the outer sides of the vertical frame to form an electrical equipment storage box. However, rows of holes for mounting equipment are formed on many sides located inside the box, and internal equipment is mounted using these rows of holes. , It does not have a structure that forms a space that can store multiple members such as doors.

Further, Patent Document 2 describes a work box in which a storage space is formed further outside a rectangular parallelepiped frame structure, and an outer panel, soundproof material, electrical and electronic equipment, etc. are stored. However, by forming a space further outside the frame structure, the external dimensions become large, and there is a possibility that problems such as the need for an extra installation space may occur, which is not preferable.

JP-A-2001-257481 JP 2020-51163 A

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the above-described conventional problems and to provide a frame structure for a box in which a space is formed to accommodate a plurality of members inside the frame without enlarging the external dimensions.

The present invention, which has been made to solve the above problems, is a box frame structure in which twelve frames form a framework of a box, wherein the plurality of frames are composed of outer sides forming the outline of the box and outer sides. It has a cross-sectional structure with an inner side located inside the frame, and a storage part for storing a plurality of members is formed between the outer side and the inner side of the two opposing frames. It is something to do.

In addition, it is preferable that the outer edge and the inner edge are parallel to each other. Further, an intermediate side is provided between the outer side and the inner side, a first storage portion is formed between the outer side and the intermediate side, and a second storage portion is formed between the intermediate side and the inner side. A formed structure is preferable. Further, the intermediate side serves as a first regulating portion for regulating the position of the member to be stored in the first storage portion, and the inner side serves to regulate the position of the member to be stored in the second storage portion. It is preferable to have a structure that serves as the second restricting portion. Furthermore, the cross-sectional structure of the frame can be a line-symmetrical shape.

According to the frame structure of the present invention, a space capable of accommodating a plurality of members can be formed inside the frame without enlarging the outer diameter.

1 is an overall perspective view of a frame structure of a box; FIG. It is an external appearance perspective view of a frame connection part. 4 is a cross-sectional view of a vertical frame; FIG. FIG. 4 is a cross-sectional view of a lateral frame and a depth frame; FIG. 4 is an exploded perspective view of a frame connecting portion; It is a horizontal sectional view of a frame connection part. It is a horizontal sectional view which shows a storage part. FIG. 3 is an exploded view of the right side panel; It is a cross-sectional view of the right side panel. 4 is an enlarged cross-sectional view of a main portion of the right side panel; FIG. 4 is an enlarged perspective view of upper and lower ends of the right side panel; FIG. It is an exploded perspective view of a left side panel. It is the top view and principal part enlarged view of a left side panel which shows the state which attached the desk. 4 is an exploded perspective view of the rear panel; FIG. FIG. 4 is a horizontal cross-sectional view of the rear panel; 4 is an exploded perspective view of the front panel; FIG. 4 is an exploded perspective view of the front panel; FIG. It is a horizontal sectional view which shows the state which attached the panel to four surfaces. 1 is an overall perspective view of a box; FIG. It is a perspective view showing the front and right sides of the box. It is a perspective view showing the back and left side of the box. It is a front sectional view of the box. FIG. 10 is a cross-sectional view showing another shape of the vertical frame;

Embodiments of the present invention are described below. The embodiment described below is the frame structure of the work box. As shown in FIG. 1, the frame structure of the box of the present invention consists of 12 frames consisting of 4 vertical frames 10, 4 horizontal frames 11 and 4 depth frames 12, which are arranged in a rectangular parallelepiped shape. is combined with The interior space is formed by attaching panels and doors to the front, back, left and right sides, top, and floor. Each frame is made of metal in order to ensure strength, but it may be made by extruding metal or by bending a metal plate.

(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. A corner plate 13 covers the end surface of the vertical frame 10 . The horizontal cross-sectional shape of the vertical frame 10 is substantially eight-shaped as shown in FIG.

Reference numeral 14 denotes a first side forming a corner of the box outline. A second side 15 is formed at an angle of 45 degrees from both ends of the first side 14, and the first side 14 and the second side 15 constitute the outline of the box. A third side 16 is formed at an end of the second side 15 inwardly at an angle of 90 degrees. A first groove 17 is formed in one of the third sides 16 .

A fourth side 18 is formed parallel to the second side 15 from the end of the third side 16 , and a second groove 19 is formed in the fourth side 18 . A fifth side 20 is formed at an angle of 90 degrees from the end of the fourth side 18 so as to be parallel to the third side 16, and a third groove 21 is formed in the fifth side 20. there is

At the end of the fifth side 20, a sixth side 22 and a seventh side 23 are formed in the direction of 90 degrees so as to be parallel to the second side 15 and the fourth side 18. Seventh sides 23 are connected at right angles to form corners of the inner space. 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 internal space of the box, and the fourth groove 24 is a mounting portion for mounting a member arranged in the internal space of the box.

As shown in the figure, a connection side 25 parallel to the first side 14 is formed at the connecting portion between the third side 16 and the fourth side 18, and the first side 14, the second side 15 and the third side 14 are connected. and a second hollow space 27 surrounded by the fourth side 18, the fifth side 20 and the seventh side 23. As shown in FIG. 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.

(horizontal frame and depth frame)
The horizontal frame 11 and the depth frame 12 have the same cross-sectional shape as shown in FIG. These are also extruded materials and have the same cross-sectional shape over their entire length. Reference numeral 30 denotes a first side forming the outline of the box, such as the front, left and right sides, and rear, and 31 denotes a second side formed in the direction of 90 degrees toward the inside of the box. A first groove 32 is formed in the second side 31 . A third side 33 is 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 . A fourth side 35 is formed parallel to the second side 31 from the end of the third side 33, and a third groove 36 is formed therein. A fifth side 37 is formed at an end of the fourth side 35 at an angle of 90 degrees, and a sixth side 38 is formed at an end of the fifth side 37 at an angle of 90 degrees and connected to the first side 30 . is.

(connection between frames)
5 and 6 show the details of the connecting portion between the frames. The ends of the vertical frame 10 and the horizontal frame 11 , and the vertical frame 10 and the depth frame 12 are in contact with each other, and are connected by connecting fittings 40 . The connecting fitting 40 has a right-angled triangular shape, and one orthogonal side abuts on the fifth side 20 of the vertical frame 10 and is fixed by a bolt 42 to a nut 41 inserted into a third groove 21 of the vertical frame 10 . Further, the other orthogonal side abuts against the third side 33 of the horizontal frame 11 and the depth frame 12 and is fixed by a bolt 43 to a nut inserted into the second groove 34 .

The end face of the vertical frame 10 connecting the horizontal frame 11 and the depth frame 12 in this manner is covered with the corner plate 13 described above. A plurality of mounting holes are formed in the corner plate 13 . The first mounting holes 44 correspond to the first mounting portions 28 of the vertical frame 10 and are fixed with bolts. The second mounting holes 45 and the third mounting holes 46 are bolted to nuts inserted into the third grooves 36 of the horizontal frame 11 and the depth frame 12 . A nut is welded to the rear surface of the fourth mounting hole 47 so that an eyebolt for lifting the box when transporting can be mounted. Further, in the horizontal frame 11 and the depth frame 12 positioned on the bottom side, the fourth mounting holes 47 are used for mounting adjusters for fixing to the installation surface.

(storage part)
The 12 frames are connected as described above to form the skeleton of the box. As shown in FIG. 7, the second side 15 of the vertical frame 10 is the outer side located outside the box, and the sixth side 22 and the seventh side 23 are the inner sides located in the inner space of the box. , and the fourth side 18 is the middle side. A plurality of members can be accommodated between the outer side (second side 15) and the inner side (sixth side 22, seventh side 23) of the two vertical frames 10 arranged to face each other. A storage portion 50 is formed in which the The storage portion 50 includes a first storage portion 51 formed between an outer side (second side 15) and an intermediate side (fourth side 18), an intermediate side (fourth side 18) and an inner side. It includes a second storage portion 52 formed between the sides (the sixth side 22 and the seventh side 23).

(right side panel)
FIG. 8 is an exploded perspective view of the right side panel of the box. 53 is an outer panel, and 54 is a sound absorbing material. As shown in horizontal sectional views of FIGS. 9 and 10, a first storage portion 51 formed between two vertical frames 10 accommodates an outer panel 53 and is attached to the second storage portion. A sound absorbing material 54 is accommodated and attached to the portion 52 . At this time, all of the sound absorbing material 54 does not need to be accommodated in the second storage portion 52 , and a portion thereof may be positioned in the first storage portion 51 . When actually attaching the sound absorbing material 54, the sound absorbing material 54 is first stored in the second storage portion 52 from the outside. 54 is restricted from moving into the inner space of the box. After housing the sound absorbing material 54, the outer panel 53 is housed in the first housing portion 51 and attached. A fourth side 18 that is an intermediate side of the two vertical frames 10 acts as a first restricting portion that restricts the position of the member stored in the first storage portion 51 .

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

(left side panel)
The right side panel of the box described above has the simplest structure in which only the sound absorbing material 54 is attached to the second storage part 52, but the left side panel of the box shown in FIGS. It has a structure in which a desk 60 is attached. Desk 60 may be of a foldable structure. As shown in FIG. 13, the desk 60 has a side 90 that abuts on the seventh side 23 of the two vertical frames 10, and one surface of a substantially L-shaped desk mounting bracket 91 (see FIG. 22). , the sixth side 22 and the seventh side 23, which are the inner sides, and the fourth groove 24, which is a mounting portion for mounting a member arranged in the inner space of the box formed on the inner side. It is fixed by a bolt 92 to the inserted nut. The desk 60 is attached to the vertical frame 10 by bringing the other surface of the desk mounting bracket 91 into contact with the back surface of the desk 60 and fixing it with screws or the like. The sound absorbing material 54 is not attached to the left side panel, and the left side inner panel 93 divided into upper and lower parts is housed in the second housing portion 52 . The side 90 of the desk 60 contacts the seventh side 23 of the two vertical frames 10 and also contacts the left side inner panel 93 .

(rear panel)
The back panel shown in FIGS. 14 and 15 has a device mounting panel 61 on the inner surface side of the box. The device mounting panel 61 is used to connect a switch 62 for a lighting fixture, a ventilator, and an air conditioning device provided on the ceiling surface of the box, and a plug for supplying power to a personal computer, a mobile terminal, etc. used in the box. It is a panel on which power supply equipment such as an outlet 63 and a USB outlet 64 are installed. Other video equipment, audio equipment, communication equipment, ventilation equipment, air conditioning equipment, etc. can also be installed. The horizontal width of the device 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 portion. Although the outer panel 65 is also divided into upper and lower parts, it may be a single plate that is not divided.

As shown in FIG. 15, a space 66 is formed between the device mounting panel 61 and the outer panel 65. In this space 66, power distribution devices such as breakers and terminal blocks are installed to distribute power to the electrical devices in the box. be done. Wiring is drawn through an opening provided in the floor of the box.

When the outer panel 65 is divided into upper and lower parts as in this embodiment, the protruding side 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 is bolted to a nut inserted into the second groove 19 of the longitudinal frame 10. A slit 68 is provided in the upper end surface of the lower outer panel 65 , and a projecting side 69 inserted into the slit 68 is formed in the lower end of the upper outer panel 65 . The projecting sides 69 of the upper outer panel 65 are inserted into the slits 68 of the lower outer panel 65 , and the left and right ends are bolted to nuts inserted into the second grooves 19 of the vertical frame 10 . In this rear panel, an outer panel 65 is housed in a first housing portion 51 formed between two vertical frames 10 and attached, and a sound absorbing material 54 and a device mounting panel are housed in a second housing portion 52. 61 is attached. Here, the position of the sound absorbing material 54 stored in the second storage portion 52 is regulated by the device mounting panel 61 at one end thereof, and the position of the vertical frame 10 at the other end thereof. The position is regulated by a regulating fitting 67 provided so as to come into contact with the fifth side 20 .

(front panel)
The front panel shown in FIGS. 16 and 17 has a door 70 . First, the mounting bracket 72 extending in the left-right direction is bolted to a nut inserted into the first groove 32 of the horizontal frame 11 on the upper front side. The upper end of a vertically elongated plate 73 is fixed to the lower portion of the mounting bracket 72 .

A door 70 is attached to the side of this plate 73 . The door 70 is supported by the vertical frame 10 by means of hinges 74 so as to be openable and closable. The plate 73 has an engagement portion with the handle 75 of the door 70 and an engagement portion with the locking device 76 .

An outer front panel 78 and an inner front panel 79 are attached to the left side of the plate 73 . The lower end of the front outer panel 78 is fixed by a bolt to a nut inserted into the first groove 32 of the lateral frame 1 on the lower side of the front, and the lower end of the front inner panel 79 is provided with a projecting side 80, which is located on the lower side of the front. is inserted into the first groove 32 of the lateral frame 11 of the . The upper ends of the front outer panel 78 and the front inner panel 79 are fixed to the mounting bracket 72 with bolts.

FIG. 18 shows a state in which panels are attached to the four surfaces described above. As for the right side and the back, an outer panel is attached to a first storage portion 51 formed between two vertical frames 10 arranged opposite to each other, and a sound absorbing material 54 is attached to a second storage portion 52. However, as for the right side, the outer panel is attached to the first storage portion 51 and the inner panel is attached to the second storage portion 52 . Further, a door 70 is attached to the first storage section 51 on the front side.

A work box shown in FIGS. 19, 20, 21, and 22 is obtained by attaching a ceiling surface 81 and a floor surface 82 to the framework of the box described above. Since it is not the main part, the explanation is omitted.

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, and as shown in FIG. It may be a line symmetrical shape. Also, an arcuate second mounting portion 29 may be formed inside the second hollow space 27 .

As described above, according to the frame structure of the box of the present invention, a space for storing a plurality of members is formed inside the frame. Various members of can be stored and attached. Although the frame structure of the work box has been described in the above embodiment, the present invention can also be applied to a box for storing electrical equipment.

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 Connection 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 folded side 56 Second folded side 57 Third folded side 58 Fourth folded side 59 Bolt 60 Desk 61 Equipment mounting panel 62 Switch 63 Outlet 64 USB outlet 65 Outer panel 66 Space 67 Regulating bracket 68 Slit 69 Protruding side 70 Door 72 Mounting bracket 73 Plate 74 Hinge 75 Handle 76 Locking device 78 Front outer panel 79 Front inner panel 80 Protruding side 81 Ceiling surface 82 Floor surface 90 Side 91 Desk mounting bracket 92 Bolt 93 Left side inner panel

Claims (5)

A frame structure of a box that forms a skeleton of the box with 12 frames,
The plurality of frames has a cross-sectional structure with outer sides that form the outline of the box and inner sides positioned inside the outer sides,
1. A frame structure of a box, characterized in that a storage section for storing a plurality of members is formed between outer sides and inner sides of two frames facing each other. 2. The frame structure of a box according to claim 1, wherein said outer edge and said inner edge are parallel. An intermediate side is provided between the outer side and the inner side, a first storage portion is formed between the outer side and the intermediate side, and a second storage portion is formed between the intermediate side and the inner side. The box frame structure according to claim 1 or 2, characterized in that: The intermediate side serves as a first regulating section for regulating the position of the member stored in the first storage section, and the inner side serves as the second regulating section for regulating the position of the member stored in the second storage section. 4. The box frame structure according to claim 3, wherein there are two restricting portions. 5. The box frame structure according to any one of claims 1 to 4, wherein the cross-sectional structure of the frame is a line-symmetrical shape.

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