WO2022024409A1

WO2022024409A1 - Casing frame structure and method for assembling casing frame

Info

Publication number: WO2022024409A1
Application number: PCT/JP2020/043633
Authority: WO
Inventors: 洋城市; 暢祐宇埜; 卓也西岡田
Original assignee: 富士電機株式会社
Priority date: 2020-07-28
Filing date: 2020-11-24
Publication date: 2022-02-03
Also published as: CN114901955A; JP2022024788A

Abstract

The present invention comprises: a width direction frame (12) that extends in the width direction; a depth direction frame (13) that extends in the depth direction and one end of which is joined with one end of the width direction frame (12) using rivets (61); a vertical direction frame (14) that extends in the vertical direction and one end of which is joined with the one end of the width direction frame (12) and the one end of the depth direction frame (13) using rivets (62), (63); and a reinforcing member (15) one side of which is joined with the one end of the width direction frame (12) using a rivet (64) and the other side of which is joined with the depth direction frame (13) using a rivet (65).

Description

Housing frame structure, housing frame assembly method

The present invention relates to a housing frame structure and a housing frame assembly method.

The switchboard and control panel are configured by accommodating electrical equipment inside the housing, and when the size of the housing is small, a rivet frame with low manufacturing cost and short lead time is adopted as shown in Reference 1. Will be done. The bottom frame and top frame that make up the housing are manufactured by bending a single steel plate.

JP-A-2015-218806

If the size of the housing is large and the width and depth are approximately 1,000 mm or more, the steel plate for manufacturing the bottom frame and top frame will be large, so a large vendor for bending is required. It becomes difficult to manufacture. If a large vendor cannot be used, the bottom frame and top frame will be manufactured separately and then welded, which requires skilled workers and is disadvantageous in terms of lead time and cost.
An object of the present invention is to improve workability and suppress an increase in cost by ensuring sufficient strength in a housing frame structure without welding even if it is large.

In the housing frame structure according to one aspect of the present invention, a width frame extending in the width direction in the lateral direction and a fastener extending in the depth direction in the lateral direction, one end of which is fastened to one end of the width direction frame. A vertical frame that is joined via fasteners to a depth frame that extends vertically and one end of which is joined to one end of the width frame and one end of the depth frame via fasteners. One side is provided with a reinforcing member joined to one end of the width direction frame via a fastener, and the other side is joined to a depth direction frame via a fastener.

In the housing frame assembly method according to another aspect of the present invention, when one end of a width frame extending in the width direction in the lateral direction and one end of the depth direction frame extending in the depth direction in the lateral direction are joined. After joining the joining pieces formed on both sides in the depth direction and the vertical direction by superimposing them on top of each other and joining them via fasteners, and joining one end of the width direction frame and one end of the depth direction frame. , When joining one end of the vertical frame extending in the vertical direction and one end of the width direction frame, the joining pieces formed on both sides in the depth direction and the vertical direction are overlapped with each other through a fastener. And when joining one end of the vertical frame and one end of the width frame, the joining pieces formed on both sides along the width direction and the vertical direction are overlapped and passed through the fastener. After joining one end of the vertical frame and one end of the width frame, and one end of the vertical frame and one end of the depth frame, one side of the reinforcing member When joining one end of the frame in the width direction, the joining pieces formed on both sides along the width direction and the depth direction are overlapped and joined via a fastener, and are joined to the other side of the reinforcing member in the width direction. When joining one end portion of the frame, the step of superimposing the joining pieces formed on both sides along the width direction and the depth direction and joining them via a fastener is included.

According to the present invention, the width direction frame, the depth direction frame, and the vertical direction frame are joined via fasteners, and the connection between the width direction frame and the depth direction frame is reinforced by a reinforcing member. .. As a result, workability can be improved and cost increase can be suppressed by ensuring sufficient strength without welding even if the size is large.

It is a perspective view of the housing frame structure. It is a perspective view which shows one end part of the frame in a width direction. It is a projection drawing which shows one end of the width direction frame. It is a perspective view which shows one end part of the depth direction frame. It is a projection drawing which shows one end of the depth direction frame. It is a perspective view which shows one end part of the vertical frame. It is a projection drawing which shows one end of the vertical frame. It is a perspective view which shows the reinforcing member. It is a projection drawing which shows a reinforcing member. It is a figure which shows the bottom frame and the top frame. It is a figure which shows the state which joined the width direction frame and the depth direction frame. It is a figure which shows the state which joined the vertical frame. It is a figure which shows the state which joined the reinforcing member. It is a figure which shows the vertical frame in the comparative example. It is a figure which shows the corner bracket in the comparative example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that each drawing is a schematic one and may differ from the actual one. In addition, the following embodiments exemplify devices and methods for embodying the technical idea of the present invention, and do not specify the configuration to the following. That is, the technical idea of the present invention can be modified in various ways within the technical scope described in the claims.

<< One Embodiment >>
"composition"
In the following description, the three directions orthogonal to each other are, for convenience, the width direction, the depth direction, and the vertical direction. The width direction and the depth direction are two directions of the horizontal direction (or the horizontal direction), and the vertical direction is the vertical direction (or the vertical direction). The width direction may be the depth direction, and the depth direction may be the width direction.
FIG. 1 is a perspective view of a housing frame structure.
As the housing frame structure 11, an inverter board is assumed here, but it can also be used as a control board, a distribution board, a distribution board, etc. for storing various electric devices such as an outer box of a cubicle type high-voltage power receiving facility. Is also applicable. In particular, it is suitable for a large housing frame structure in which the dimensions in the width direction and the depth direction are approximately 1,000 mm or more.

The housing frame structure 11 is formed in a substantially rectangular parallelepiped by combining a width direction frame 12, a depth direction frame 13, and a vertical direction frame 14. That is, it includes four width-direction frames 12 extending along the width direction, four depth-direction frames 13 extending along the depth direction, and four vertical-direction frames 14 extending along the vertical direction. Here, as an example, the vertical frame 14 is the longest and the depth frame 13 is the shortest. One end of the width direction frame 12, one end of the depth direction frame 13, and one end of the vertical direction frame 14 are all joined via rivets (fasteners). A reinforcing member 15 for improving strength is joined to each corner where the width direction frame 12, the depth direction frame 13, and the vertical direction frame 14 intersect. Therefore, there are a total of eight reinforcing members 15, all of which are joined via rivets.

Specifically, on the bottom surface side, the bottom frame 16 is formed by joining the ends of the two widthwise frames 12 arranged in the depth direction and the two depth direction frames 13 arranged in the width direction to each other. Is formed. Further, on the ceiling side, the top frame 17 is formed by joining the ends of the two widthwise frames 12 arranged in the depth direction and the two depth direction frames 13 arranged in the width direction to each other. There is. The four corners of the bottom frame 16 and the top frame 17 are joined to each other via four vertical frames 14. The width direction frame 12, the depth direction frame 13, the vertical direction frame 14, and the reinforcing member 15 are all formed by bending one steel plate by a bender, and the plate thickness of each steel plate is substantially uniform. And.
In the following description, one corner of the bottom frame 16 shown by A in the figure will be focused on, and each configuration will be described in detail. The other corners also have different orientations such as being flipped up and down or left and right, but they have basically the same configuration, so detailed description will be omitted. Further, when referred to as inside or outside, both refer to the inside or outside of the housing frame structure 11.

FIG. 2 is a perspective view showing one end of a frame in the width direction.
FIG. 3 is a projection drawing showing one end of the widthwise frame.
FIG. 3A is a view of the width direction frame 12 as viewed from the inside in the depth direction. FIG. 3B is a view of the widthwise frame 12 as viewed from the inside in the vertical direction. FIG. 3C is a diagram showing a BB cross section of the widthwise frame 12. FIG. 3D is a diagram showing a CC cross section of the widthwise frame 12. The width direction frame 12 is formed by bending a single steel plate into a substantially square cylinder shape, and has a vertical outer portion 21, a depth outer portion 22, a width direction outer portion 23, and a depth direction inner portion. 24 and a vertical inner portion 25 are provided.

The vertical outer portion 21 is a plate portion along the width direction and the depth direction, and in the case of the width direction frame 12 constituting the bottom frame 16, it is grounded to the floor surface.
The outer portion 22 in the depth direction is a plate portion along the width direction and the vertical direction, and is formed by bending the outer portion 21 in the vertical direction at a right angle from the outer end portion in the depth direction toward the inner side in the vertical direction.
The outer portion 23 in the width direction is a plate portion along the depth direction and the vertical direction, and is formed by bending the outer portion 22 in the depth direction at a right angle from the outer end portion in the width direction toward the inside in the depth direction. The vertical dimension of the outer portion 23 in the width direction is substantially equal to the vertical dimension of the outer portion 22 in the depth direction. The dimension in the depth direction of the outer portion 23 in the width direction is shorter than the dimension in the depth direction in the outer portion 21 in the vertical direction.

The inner portion 24 in the depth direction is a plate portion along the width direction and the vertical direction, and is formed by bending at a right angle from the inner end portion in the depth direction to the inner side in the vertical direction in the outer portion 21 in the vertical direction. The inner portion 24 in the depth direction is not formed in the range of L1 from the tip end in the width direction in the outer portion 21 in the vertical direction. The vertical dimension of the inner portion 24 in the depth direction is shorter than the vertical dimension of the outer portion 22 in the depth direction.
The vertical inner portion 25 is a plate portion along the width direction and the depth direction, and is formed by bending at a right angle from the inner end portion in the vertical direction to the inner side in the depth direction in the outer portion 22 in the depth direction. The depth dimension of the vertical inner portion 25 is shorter than the depth dimension of the vertical outer portion 21.

Two through holes 26 arranged in the vertical direction are formed inside the outer portion 23 in the width direction in the depth direction. A rivet is inserted into the through hole 26 when the through hole 26 is joined to the depth direction frame 13. Two through holes 27 arranged in the vertical direction are formed on the outer side in the depth direction of the outer portion 23 in the width direction. A rivet is inserted into the through hole 27 when joining the vertical frame 14. Therefore, the outer portion 23 in the width direction becomes a joint piece with the depth direction frame 13 and a joint piece with the vertical direction frame 14.
One through hole 28 is formed on the outer side in the width direction of the outer portion 21 in the vertical direction. A rivet is inserted into the through hole 28 when joining the reinforcing member 15. Therefore, the outer side in the width direction of the outer portion 21 in the vertical direction is a joint piece with the reinforcing member 15. The outside of the through hole 28 in the vertical direction is countersunk.

FIG. 4 is a perspective view showing one end of the depth direction frame.
FIG. 5 is a projection drawing showing one end of the depth direction frame.
FIG. 5A is a view of the depth direction frame 13 as viewed from the inside in the width direction. FIG. 5B is a view of the depth direction frame 13 as viewed from the inside in the vertical direction. FIG. 5 (c) is a diagram showing a DD cross section of the depth direction frame 13. FIG. 5D is a diagram showing an EE cross section of the depth direction frame 13. The depth direction frame 13 is formed by bending a single steel plate into a substantially square cylinder shape, and includes a vertical outer portion 31, a width direction outer portion 32, a depth direction outer portion 33, and a protruding piece 34. , A widthwise inner portion 35 and a vertical inner portion 36.

The vertical outer portion 31 is a plate portion along the depth direction and the width direction, and in the case of the depth direction frame 13 constituting the bottom frame 16, it is grounded to the floor surface.
The outer portion 32 in the width direction is a plate portion along the depth direction and the vertical direction, and is formed by bending at a right angle from the outer end portion in the width direction to the inner side in the vertical direction in the outer portion 31 in the vertical direction. The vertical dimension of the widthwise outer portion 32 is substantially equal to the vertical dimension of the depth direction outer portion 22 of the widthwise frame 12.
The outer portion 33 in the depth direction is a plate portion along the width direction and the vertical direction, and is formed by bending the outer portion 32 in the width direction at a right angle from the outer end portion in the depth direction toward the inside in the width direction. The vertical dimension of the outer portion 33 in the depth direction is substantially equal to the vertical dimension of the outer portion 32 in the width direction. The width direction dimension in the depth direction outer portion 33 is shorter than the width direction dimension in the vertical direction outer portion 31.

The projecting piece 34 is a plate portion along the depth direction and the vertical direction, and is formed by bending at a right angle from the inner end portion in the width direction to the outer side in the depth direction in the outer portion 33 in the depth direction.
The inner portion 35 in the width direction is a plate portion along the depth direction and the vertical direction, and is formed by bending at a right angle from the inner end portion in the width direction to the inner side in the vertical direction in the outer portion 31 in the vertical direction. The inner portion 35 in the width direction is not formed in the range of L2 from the tip in the depth direction in the outer portion 31 in the vertical direction. The vertical dimension in the widthwise inner portion 35 is shorter than the vertical dimension in the widthwise outer portion 32.
The vertical inner portion 36 is a plate portion along the depth direction and the width direction, and is formed by bending at a right angle from the inner end portion in the vertical direction to the inner side in the width direction in the outer portion 32 in the width direction. The widthwise dimension in the vertical inner portion 36 is shorter than the widthwise dimension in the vertical outer portion 31.

The protruding piece 34 is formed with two through holes 37 arranged in the vertical direction. The pitch of the through hole 37 is the same as the pitch of the through hole 26 formed in the outer side portion 23 in the width direction of the width direction frame 12. A rivet is inserted into the through hole 37 when joining the frame 12 in the width direction. Therefore, the protruding piece 34 becomes a joining piece with the widthwise frame 12.
Three through holes 38 arranged in the vertical direction are formed in the outer portion 33 in the depth direction. A rivet is inserted into the through hole 38 when joining the vertical frame 14. Therefore, the outer portion 33 in the depth direction serves as a joint piece with the frame 14 in the vertical direction.
One through hole 39 is formed on the outer side in the depth direction of the outer portion 31 in the vertical direction. A rivet is inserted into the through hole 39 when joining with the reinforcing member 15. Therefore, the outer side in the depth direction of the outer portion 31 in the vertical direction serves as a joint piece with the reinforcing member 15. The outside of the through hole 39 in the vertical direction is countersunk.

FIG. 6 is a perspective view showing one end of the vertical frame.
FIG. 7 is a projection drawing showing one end of the vertical frame.
FIG. 7A is a view of the vertical frame 14 as viewed from the inside in the width direction. FIG. 7B is a view of the vertical frame 14 as viewed from the inside in the depth direction. FIG. 7 (c) is a diagram showing an FF cross section of the vertical frame 14. The vertical frame 14 is formed by bending a single steel plate into a substantially square cylinder shape, and has an outer portion 41 in the width direction, an outer portion 42 in the depth direction, an inner portion 43 in the width direction, and an inner portion in the depth direction. 44 and a vertical outer portion 45 are provided.
The outer portion 41 in the width direction is a plate portion along the depth direction and the vertical direction. The dimension in the depth direction of the outer portion 41 in the width direction is substantially equal to the dimension in the depth direction of the outer portion 21 in the vertical direction in the width direction frame 12.

The outer portion 42 in the depth direction is a plate portion along the width direction and the vertical direction, and is formed by bending the outer portion 41 in the width direction at a right angle from the outer end portion in the depth direction toward the inside in the width direction. The width direction dimension of the depth direction outer portion 42 is substantially equal to the width direction dimension of the depth direction outer portion 33 in the depth direction frame 13.
The inner portion 43 in the width direction is a plate portion along the depth direction and the vertical direction, and is formed by bending at a right angle from the inner end portion in the width direction to the inner side in the depth direction in the outer portion 42 in the depth direction. The dimension in the depth direction in the inner portion 43 in the width direction is shorter than the dimension in the depth direction in the outer portion 41 in the width direction.

The inner portion 44 in the depth direction is a plate portion along the width direction and the vertical direction, and is formed by bending the outer portion 41 in the width direction at a right angle from the inner end portion in the depth direction toward the inner side in the width direction. The width direction dimension in the depth direction inner portion 44 is substantially equal to the width direction dimension in the depth direction outer portion 42.
The vertical outer portion 45 is a plate portion along the width direction and the depth direction, and is formed by bending the outer portion 41 in the width direction at a right angle from the outer end portion in the vertical direction toward the inside in the width direction. The vertical outer portion 45, which is the bottom surface side of the vertical frame 14, is grounded to the floor surface. The width direction dimension in the vertical outer portion 45 is substantially equal to the width direction dimension in the depth direction outer portion 42.

Two through holes 46 arranged in the vertical direction are formed on the outer side in the vertical direction in the inner portion 43 in the width direction. The pitch of the through holes 46 is the same as the pitch of the through holes 27 formed in the outer side portion 23 in the width direction of the width direction frame 12. A rivet is inserted into the through hole 46 when joining the frame 12 in the width direction. Therefore, the outer side in the vertical direction of the inner portion 43 in the width direction becomes a joint piece with the frame 12 in the width direction.
Three through holes 47 arranged in the vertical direction are formed on the outer side in the vertical direction in the inner portion 44 in the depth direction. The pitch of the through hole 47 is the same as the pitch of the through hole 38 formed in the outer portion 33 in the depth direction. A rivet is inserted into the through hole 47 when the through hole 47 is joined to the depth direction frame 13. Therefore, the outer side in the vertical direction in the inner portion 44 in the depth direction is a joint piece with the frame 13 in the depth direction.

FIG. 8 is a perspective view showing a reinforcing member.
FIG. 9 is a projection drawing showing the reinforcing member.
FIG. 9A is a view of the reinforcing member 15 viewed from the inside in the vertical direction. (B) in the figure is a view of the reinforcing member 15 as viewed from the inside in the width direction. (C) in the figure is a view of the reinforcing member 15 as viewed from the inside in the depth direction. The reinforcing member 15 is formed by bending a single steel plate, and has a vertical outer portion 51, a depth direction outer portion 52, a depth direction inner portion 53, a width direction inner portion 54, and a vertical outer side. A portion 55 and an outer portion 56 in the width direction are provided.

The outer portion 51 in the vertical direction is a plate portion along the width direction and the depth direction. The dimension in the width direction of the outer portion 51 in the vertical direction is shorter than the length of L1 in which the inner portion 24 in the depth direction is not formed in the width direction frame 12. The dimension in the depth direction of the outer portion 51 in the vertical direction is substantially equal to the dimension in the depth direction of the outer portion 21 in the vertical direction in the width direction frame 12.
The outer portion 52 in the depth direction is a plate portion along the width direction and the vertical direction, and is formed by bending the outer portion 51 in the vertical direction at a right angle from the outer end portion in the depth direction toward the inner side in the vertical direction. The vertical dimension of the depth direction outer portion 52 is shorter than the vertical dimension of the depth direction outer portion 22 in the width direction frame 12.

The inner portion 53 in the depth direction is a plate portion along the width direction and the vertical direction, and is formed by bending at a right angle from the inner end portion in the depth direction to the inner side in the vertical direction in the outer portion 51 in the vertical direction. The vertical dimension of the inner portion 53 in the depth direction is longer than the vertical dimension of the outer portion 52 of the depth direction, and is substantially equal to the vertical dimension of the inner portion 24 of the depth direction in the width direction frame 12.
The inner portion 54 in the width direction is a plate portion along the depth direction and the vertical direction, and is formed by bending the inner portion 53 in the depth direction at a right angle from the outer end portion in the width direction toward the inside in the depth direction. The vertical dimension of the widthwise inner portion 54 is substantially equal to the vertical dimension of the depth direction inner portion 53 and the vertical dimension of the widthwise inner portion 35 of the depth direction frame 13.

The outer portion 55 in the vertical direction is a plate portion along the width direction and the depth direction. The dimension in the depth direction of the outer portion 55 in the vertical direction is shorter than the length of L2 in which the inner portion 35 in the width direction is not formed in the depth direction frame 13. The widthwise dimension of the vertical outer portion 55 is substantially equal to the widthwise dimension of the vertical outer portion 31 of the depth frame 13.
The outer portion 56 in the width direction is a plate portion along the depth direction and the vertical direction, and is formed by bending at a right angle from the outer end portion in the width direction to the inner side in the vertical direction in the outer portion 55 in the vertical direction. The vertical dimension of the widthwise outer portion 56 is shorter than the vertical dimension of the widthwise outer portion 32 of the depth frame 13, and shorter than the vertical dimension of the widthwise inner portion 54.

One through hole 57 is formed in the outer portion 51 in the vertical direction. A rivet is inserted into the through hole 57 when joining the frame 12 in the width direction. Therefore, the outer portion 51 in the vertical direction serves as a joint piece with the frame 12 in the width direction.
One through hole 58 is formed in the outer portion 55 in the vertical direction. A rivet is inserted into the through hole 58 when the through hole 58 is joined to the depth direction frame 13. Therefore, the outer portion 55 in the vertical direction serves as a joint piece with the frame 13 in the depth direction.

Next, a method of assembling the housing frame structure 11 will be described.
FIG. 10 is a diagram showing a bottom frame and a top frame.
As an outline of the assembly method, first, the bottom frame 16 and the top frame 17 are assembled. That is, the bottom frame 16 is formed by joining the ends of the two widthwise frames 12 arranged in the depth direction and the two depth direction frames 13 arranged in the width direction to each other. Further, the top frame 17 is formed by joining the ends of the two widthwise frames 12 arranged in the depth direction and the two depth direction frames 13 arranged in the width direction to each other.

Then, the four corners of the bottom frame 16 and the top frame 17 are joined to each other via the four vertical frames 14, and the reinforcing member 15 is joined to each corner to complete the housing frame structure 11. When joining the vertical frame 14 to the bottom frame 16 or the top frame 17, it is desirable that the vertical frame 14 is laid down and the bottom frame 16 or the top frame 17 is raised.
In the following description, one corner of the bottom frame 16 shown by A in the figure will be focused on, and the assembly method will be described in detail. The other corners also have different orientations such as being flipped up and down or left and right, but they have basically the same configuration, so detailed description will be omitted.

FIG. 11 is a diagram showing a state in which the width direction frame and the depth direction frame are joined.
First, one end of the width direction frame 12 and one end of the depth direction frame 13 are joined. In this step, the joining pieces formed on both sides along the depth direction and the vertical direction are overlapped and joined via the rivet 61 (fastener). That is, the inner side in the depth direction in which the two through holes 26 are formed in the outer side portion 23 in the width direction in the width direction frame 12, and the protruding piece 34 in which the two through holes 37 are formed in the depth direction frame 13 are formed. Overlay. Then, the rivet 61 is inserted from the inside in the width direction into each of the overlapped through

holes

26 and 37, and the outer end portion in the width direction of the rivet 61 is crimped and firmly adhered by using a special fastening tool. As a result, the width direction frame 12 and the depth direction frame 13 are joined. At this time, the vertical outer side portion 21 of the width direction frame 12 and the vertical outer side portion 31 of the depth direction frame 13 are flush with each other in the vertical direction outer end faces. As the rivet 61, it is desirable to use a rivet for a structure that can obtain high shear, high tension, and high crimping, and a round head type is used here.

FIG. 12 is a diagram showing a state in which vertical frames are joined.
After joining one end of the width direction frame 12 and one end of the depth direction frame 13, one end of the vertical direction frame 14 and one end of the width direction frame 12 are joined. In this step, the joining pieces formed on both sides along the depth direction and the vertical direction are overlapped and joined via the rivet 62 (fastener). That is, the outer side in the depth direction in which two through holes 27 are formed in the outer portion 23 in the width direction in the width direction frame 12, and the inner portion 43 in the width direction in which two through holes 46 are formed in the vertical frame 14. , Overlay. Then, the rivet 62 is inserted from the inside in the width direction into each of the overlapped through hole 27 and the through hole 46, and the outer end portion in the width direction of the rivet 62 is crimped and firmly adhered by using a special fastening tool. As a result, the width direction frame 12 and the vertical direction frame 14 are joined. At this time, the vertical outer side portion 21 of the width direction frame 12 and the vertical outer side portion 45 of the vertical direction frame 14 are flush with each other in the vertical direction outer end faces. As the rivet 62, it is desirable to use a rivet for a structure that can obtain high shear, high tension, and high crimping, and a round head type is used here.

Further, after joining one end of the width direction frame 12 and one end of the depth direction frame 13, one end of the vertical direction frame 14 and one end of the depth direction frame 13 are joined. In this step, the joining pieces formed on both sides along the width direction and the vertical direction are overlapped and joined via the rivet 63 (fastener). That is, the outer portion 33 in the depth direction in which the three through holes 38 of the depth direction frame 13 are formed and the inner portion 44 in the depth direction in which the three through holes 47 of the vertical frame 14 are formed are overlapped with each other. Then, the rivet 63 is inserted into each of the overlapped through

holes

38 and 47 from the inside in the depth direction, and the outer end portion of the rivet 63 in the depth direction is crimped and firmly adhered using a dedicated fastening tool. As a result, the depth direction frame 13 and the vertical direction frame 14 are joined. At this time, the vertical outer side portion 31 of the depth direction frame 13 and the vertical outer side portion 45 of the vertical direction frame 14 are flush with each other in the vertical direction outer end faces. As the rivet 63, it is desirable to use a rivet for a structure that can obtain high shear, high tension, and high crimping, and a round head type is used here. The arrangement of the rivet 61 in the depth direction is set so that the outer end portion of the rivet 63 in the depth direction does not interfere with the outer end portion of the rivet 61 in the width direction.

FIG. 13 is a diagram showing a state in which the reinforcing members are joined.
After joining one end of the vertical frame 14 and one end of the width frame 12, and joining one end of the vertical frame 14 and one end of the depth frame 13, one side of the reinforcing member 15 and the width Join one end of the directional frame 12. In this step, the joining pieces formed on both sides along the width direction and the depth direction are overlapped and joined via the rivet 64 (fastener). That is, the vertical outer portion 21 in which one through hole 28 in the width direction frame 12 is formed and the vertical outer portion 51 in which one through hole 57 in the reinforcing member 15 is formed are overlapped with each other. Then, the rivet 64 is inserted from the outside in the vertical direction into each of the overlapped through hole 28 and the through hole 57, and the inner end portion in the vertical direction of the rivet 64 is crimped and firmly adhered by using a dedicated fastening tool. This joins the widthwise frame 12 and the reinforcing member 15. At this time, the depth direction outer portion 52 of the reinforcing member 15 and the depth direction outer portion 22 of the width direction frame 12 come into surface contact with each other to perform positioning in the depth direction. The inner portion 53 in the depth direction of the reinforcing member 15 and the inner portion 24 in the depth direction of the width direction frame 12 are flush with each other on the inner end faces in the depth direction. As the rivet 64, it is desirable to use a rivet for a structure that can obtain high shear, high tension, and high crimping, and here, a countersunk type is used.

After joining one end of the vertical frame 14 and one end of the width frame 12, and joining one end of the vertical frame 14 and one end of the depth frame 13, the other side and the depth of the reinforcing member 15 Joins one end of the directional frame 13. In this step, the joining pieces formed on both sides along the width direction and the depth direction are overlapped and joined via the rivet 65. That is, the vertical outer portion 31 in which one through hole 39 in the depth direction frame 13 is formed and the vertical outer portion 55 in which one through hole 58 in the reinforcing member 15 is formed are overlapped with each other. Then, the rivet 65 is inserted from the outside in the vertical direction into each of the overlapped through hole 39 and the through hole 58, and the inner end portion in the vertical direction of the rivet 65 is crimped and firmly adhered using a dedicated fastening tool. As a result, the depth direction frame 13 and the reinforcing member 15 are joined. At this time, the widthwise outer portion 56 of the reinforcing member 15 and the widthwise outer portion 32 of the widthwise frame 12 come into surface contact with each other to perform positioning in the width direction. The widthwise inner portion 54 of the reinforcing member 15 is inside the widthwise inner portion 35 of the widthwise frame 12 in the width direction. As the rivet 65, it is desirable to use a rivet for a structure that can obtain high shear, high tension, and high crimping, and here, a countersunk type is used.

《Action》
Next, the main action of one embodiment will be described.
The bottom frame and top frame constituting the housing are generally manufactured by bending a single steel plate and joined by rivets. However, if the size of the housing is large and the width and depth are approximately 1,000 mm or more, the steel plate for manufacturing the bottom frame and top frame will be large, so a large vendor that performs bending processing. Is required, which makes production difficult. If a large vendor cannot be used, the bottom frame and top frame will be manufactured separately and then welded, which requires skilled workers and is disadvantageous in terms of lead time and cost.

Therefore, in one embodiment, the housing frame structure 11 is configured by the width direction frame 12, the depth direction frame 13, the vertical direction frame 14, and the reinforcing member 15. One end of the depth direction frame 13 is joined to one end of the width direction frame 12 via a rivet 61. One end of the vertical frame 14 is joined to one end of the width frame 12 via rivets 62, and one end of the depth frame 13 is joined to one end of the depth frame 13 via rivets 63. One side of the reinforcing member 15 is joined to one end of the widthwise frame 12 via rivets 64, and the other side of the reinforcing member 15 is joined to the depth direction frame 13 via rivets 65. .. In this way, the width direction frame 12, the depth direction frame 13, and the vertical direction frame 14 are each joined via rivets, and the joint between the width direction frame 12 and the depth direction frame 13 is reinforced by the reinforcing member 15. is doing. As a result, workability can be improved and cost increase can be suppressed by ensuring sufficient strength without welding even if the size is large.

Further, the bottom frame 16 is formed by joining the ends of the two widthwise frames 12 arranged in the depth direction and the two depth direction frames 13 arranged in the width direction to each other. Further, the top frame 17 is formed by joining the ends of the two widthwise frames 12 arranged in the depth direction and the two depth direction frames 13 arranged in the width direction to each other. Then, the four corners of the bottom frame 16 and the top frame 17 are joined to each other via four vertical frames 14. This makes it possible to form a cubic housing frame structure 11 having 6 faces, 12 sides, and 8 vertices.

Further, when joining the width direction frame 12, the depth direction frame 13, the vertical direction frame 14, and the reinforcing member 15, rivets are used as fasteners. As a result, since it is not necessary to perform welding, workability can be improved and an increase in cost can be suppressed.
Further, the width direction frame 12 and the depth direction frame 13 are joined by superimposing the joining pieces formed on both sides along the depth direction and the vertical direction. With such a simple structure, highly rigid joining can be performed.
Further, the width direction frame 12 and the vertical direction frame 14 are joined by superimposing the joining pieces formed on both sides along the depth direction and the vertical direction. Further, the depth direction frame 13 and the vertical direction frame 14 are joined by superimposing the joining pieces formed on both sides along the width direction and the vertical direction. With such a simple structure, highly rigid joining can be performed.

Further, one side of the reinforcing member 15 and the width direction frame 12 are joined by superimposing the joining pieces formed on both sides along the width direction and the depth direction. Further, the other side of the reinforcing member 15 and the depth direction frame 13 are joined by superimposing the joining pieces formed on both sides along the width direction and the depth direction. With such a simple structure, highly rigid joining can be performed.
Further, the width direction frame 12, the depth direction frame 13, the vertical direction frame 14, and the reinforcing member 15 are all formed by bending. Therefore, it is advantageous in terms of production lead time and yield.
Further, the housing frame structure 11 has dimensions of approximately 1,000 mm or more in each of the width direction and the depth direction. As described above, by ensuring sufficient strength without welding even if the size is large, workability can be improved and an increase in cost can be suppressed.

Further, the assembly method of one embodiment includes the following steps. First, when joining one end of the width direction frame 12 and one end of the depth direction frame 13, the joining pieces formed on both sides along the depth direction and the vertical direction are overlapped and joined via the rivet 61. do. Then, when joining one end of the vertical frame 14 and one end of the width frame 12, the joining pieces formed on both sides in the depth direction and the vertical direction are superposed and joined via the rivet 62. do. Then, when joining one end of the vertical frame 14 and one end of the depth frame 13, the joining pieces formed on both sides along the width direction and the vertical direction are superposed and joined via the rivet 63. do. Then, when joining one side of the reinforcing member 15 and one end of the width direction frame 12, the joining pieces formed on both sides along the width direction and the depth direction are superposed and joined via the rivet 64. .. Further, when joining the other side of the reinforcing member 15 and one end of the depth direction frame 13, the joining pieces formed on both sides along the width direction and the depth direction are overlapped and joined via the rivet 65. .. In this way, the width direction frame 12, the depth direction frame 13, and the vertical direction frame 14 are each joined via rivets, and the joint between the width direction frame 12 and the depth direction frame 13 is reinforced by the reinforcing member 15. is doing. As a result, workability can be improved and cost increase can be suppressed by ensuring sufficient strength without welding even if the size is large.

It should be noted that the order of the steps of joining the vertical frame 14 and the steps of joining the reinforcing member 15 cannot be exchanged. That is, the reinforcing member 15 cannot be joined before the vertical frame 14 is joined. This is because, as shown in FIG. 13, if the rivet 65 is hit first, the fastening tool interferes with the rivet 65, and the rivet 63 located on the outermost side of the rivet 63 in the vertical direction cannot be hit. Is. Therefore, in one embodiment, the vertical frame 14 is joined to both the width direction frame 12 and the depth direction frame 13, and then the reinforcing member 15 is joined to both the width direction frame 12 and the depth direction frame 13. By joining in this order, it is possible to prevent the fastening tools from interfering with each other and securely fasten the rivet 63.

Next, a comparative example will be described.
Here, a configuration will be described in which a single steel plate is bent to form a bottom frame 71, and the vertical frame 73 is joined to the bottom frame 71 via a corner bracket 72.
FIG. 14 is a diagram showing a vertical frame in a comparative example.
FIG. 14A shows a state before fitting the vertical frame 73. FIG. 14B shows a state after the vertical frame 73 is fitted. The bottom frame 71 is formed with a through hole 81 into which a rivet is inserted when the corner bracket 72 is joined. The vertical frame 73 is formed with a notch 82 fitted to the bottom frame 71 and a through hole 83 into which a rivet is inserted when the corner bracket 72 is joined. The circumference of the through hole 83 is drawn. The vertical frame 73 is positioned by fitting the notch 82 to the bottom frame 71.

FIG. 15 is a diagram showing a corner bracket in a comparative example.
FIG. 15A shows a perspective view of the corner bracket 72. FIG. 15B shows a state in which the corner bracket 72 is joined. The corner bracket 72 is formed with a through hole 84 into which a rivet is inserted when joining with the bottom frame 71, and a through hole 85 into which a rivet is inserted when joining with the vertical frame 73. The circumference of the through hole 85 is drawn. The corner bracket 72 is fitted to the bottom frame 71 and is joined to the bottom frame 71 by a rivet 86 inserted into the through hole 81 and the through hole 84. Further, the vertical frame 73 is joined to the corner bracket 72 by the through hole 83 and the rivet 87 inserted into the through hole 85.

According to the comparative example, the vertical frame 73 is not directly joined to the bottom frame 71, but is indirectly joined via the corner bracket 72. Therefore, for the purpose of improving the joining strength, the vertical frame 73 and the corner bracket 72 are drawn, but a special mold is required for the drawing, which causes an increase in cost. On the other hand, in one embodiment, since the vertical frame 14 is directly bonded to the bottom frame 16 and the top frame 17, the bonding strength is improved as compared with the configuration of the comparative example. Since the reinforcing member 15 plays a role of reinforcing the bottom frame 16 and the top frame 17 and is not joined to the vertical frame 14, it is not necessary to draw the vertical frame 14 and the reinforcing member 15. Therefore, the increase in cost can be suppressed.

<< Modification example >>
In one embodiment, rivets are used as fasteners, but the present invention is not limited to this, and screws or bolts and nuts may be used. The point is that any fastener such as a rivet, a screw, a bolt and a nut can be used because the workability can be improved without requiring a skilled worker as in welding. This makes it possible to secure a certain joint strength with a relatively simple operation. In addition, it is easier to inspect joints than welding. In particular, rivets are excellent in reliability because they basically do not loosen.

In one embodiment, the inner portion 53 in the depth direction of the reinforcing member 15 and the inner portion 24 in the depth direction of the width direction frame 12 are in a non-contact state, but the present invention is not limited to this. For example, the vertical outer portion 51, the depth direction outer portion 52, and the depth direction inner portion 53 of the reinforcing member 15 are combined with the vertical outer portion 21, the depth direction outer portion 22, and the depth direction inner portion 24 of the width direction frame 12. It may be fitted. As a result, the contact area of the reinforcing member 15 increases, so that the rigidity can be increased. Similarly, the widthwise inner portion 54 of the reinforcing member 15 and the widthwise inner portion 35 of the depth direction frame 13 are in a non-contact state, but the present invention is not limited to this. For example, the vertical outer portion 55, the width direction outer portion 56, and the width direction inner portion 54 of the reinforcing member 15 are fitted to the vertical outer portion 31, the width direction outer portion 32, and the width direction inner portion 35 of the depth direction frame 13. You may match. As a result, the contact area of the reinforcing member 15 increases, so that the rigidity can be increased.

Although the above description has been made with reference to a limited number of embodiments, the scope of rights is not limited to them, and modifications of the embodiments based on the above disclosure are obvious to those skilled in the art.

11 ... Housing frame structure, 12 ... Width frame, 13 ... Depth frame, 14 ... Vertical frame, 15 ... Reinforcing member, 16 ... Bottom frame, 17.. .Top frame, 21 ... Vertical outer part, 22 ... Depth outer part, 23 ... Width outer part, 24 ... Depth inner part, 25 ... Vertical inner part, 26 ... through hole, 27 ... through hole, 28 ... through hole, 31 ... vertical outer part, 32 ... width direction outer part, 33 ... depth direction outer part, 34 .. Projection piece, 35 ... inner part in width direction, 36 ... inner part in vertical direction, 37 ... through hole, 38 ... through hole, 39 ... through hole, 41 ... outer part in width direction Part, 42 ... outer part in the depth direction, 43 ... inner part in the width direction, 44 ... inner part in the depth direction, 45 ... outer part in the vertical direction, 46 ... through hole, 47 ... through Hole, 51 ... Vertical outer part, 52 ... Depth outer part, 53 ... Depth inner part, 54 ... Width inner part, 55 ... Vertical outer part, 56 .. Width outer part, 57 ... through hole, 58 ... through hole, 61 ... rivet, 62 ... rivet, 63 ... rivet, 64 ... rivet, 65 ... rivet, 71 ... bottom frame, 72 ... corner bracket, 73 ... vertical frame, 81 ... through hole, 82 ... notch, 83 ... through hole, 84 ... through hole, 85 ... through holes, 86 ... rivets, 87 ... rivets

Claims

A width frame that extends in the width direction of the horizontal direction, and
A depth-direction frame that extends in the depth direction in the lateral direction and has one end joined to one end of the width-direction frame via a fastener.
A vertical frame extending in the vertical direction, one end of which is joined to one end of the width frame and one end of the depth frame via fasteners.
A casing characterized in that one side is joined to one end of the widthwise frame via fasteners and the other side is joined to the depth of the frame via fasteners. Body frame structure.
A bottom frame is formed by joining the ends of the two widthwise frames arranged in the depth direction and the ends of the two depth direction frames arranged in the width direction.
A top frame is formed by joining the ends of the two widthwise frames arranged in the depth direction and the ends of the two depth direction frames arranged in the width direction.
The housing frame structure according to claim 1, wherein the bottom frame and the four corners of the top frame are joined to each other via the four vertical frames.
The housing frame structure according to claim 1 or 2, wherein the fastener is any one of a rivet, a screw, and a bolt and nut.
One of claims 1 to 3, wherein the width direction frame and the depth direction frame are joined by superimposing joint pieces formed on both sides along the depth direction and the vertical direction. The housing frame structure described in.
The width direction frame and the vertical direction frame are joined by superimposing the joining pieces formed on both sides along the depth direction and the vertical direction.
One of claims 1 to 4, wherein the depth direction frame and the vertical direction frame are joined by superimposing joint pieces formed on both sides along the width direction and the vertical direction. The housing frame structure described in.
One side of the reinforcing member and the width direction frame are joined by superimposing joint pieces formed on both sides along the width direction and the depth direction.
Any of claims 1 to 5, wherein the other side of the reinforcing member and the depth direction frame are joined by superimposing joint pieces formed on both sides along the width direction and the depth direction. The housing frame structure described in item 1.
The housing according to any one of claims 1 to 6, wherein the width direction frame, the depth direction frame, the vertical direction frame, and the reinforcing member are all formed by bending. Frame structure.
The housing frame structure according to any one of claims 1 to 7, wherein the dimensions in each of the width direction and the depth direction are 1,000 mm or more.
When joining one end of the width frame extending in the width direction in the horizontal direction and one end of the depth direction frame extending in the depth direction in the horizontal direction, along the depth direction and the vertical direction formed on both sides. The process of stacking joining pieces and joining them via fasteners,
After joining one end of the width direction frame and one end of the depth direction frame,
When joining one end of a vertical frame extending in the vertical direction and one end of the width direction frame, the joining pieces formed on both sides in the depth direction and the vertical direction are overlapped with each other and via a fastener. And when joining one end of the vertical frame and one end of the depth frame, the fasteners formed on both sides are overlapped with each other along the width direction and the vertical direction. And the process of joining through
After joining one end of the vertical frame and one end of the width frame, and joining one end of the vertical frame and one end of the depth frame, one side of the reinforcing member and the width thereof. When joining one end of the directional frame, the joining pieces formed on both sides along the width direction and the depth direction are overlapped and joined via the fastener, and the other side of the reinforcing member and the depth are joined. A casing characterized by including a step of superimposing joint pieces formed on both sides along a width direction and a depth direction and joining them via fasteners when joining one end of a directional frame. Body frame assembly method.