JP6793475B2 - Housing for board equipment - Google Patents

Housing for board equipment Download PDF

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JP6793475B2
JP6793475B2 JP2016120451A JP2016120451A JP6793475B2 JP 6793475 B2 JP6793475 B2 JP 6793475B2 JP 2016120451 A JP2016120451 A JP 2016120451A JP 2016120451 A JP2016120451 A JP 2016120451A JP 6793475 B2 JP6793475 B2 JP 6793475B2
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metal fitting
housing
corner
double
plate
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JP2017225283A (en
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貴浩 佐々木
貴浩 佐々木
徹 山地
徹 山地
達哉 ▲濱▼田
達哉 ▲濱▼田
進 小鶴
進 小鶴
信和 永易
信和 永易
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Description

この発明は、盤装置用筐体に関するものであり、例えば配電機器などが収納された盤装置用筐体に関するものである。 The present invention relates to a case for a board device, and for example, relates to a case for a board device in which a power distribution device or the like is housed.

配電設備を構成するスイッチギヤの内部には、電流を通電する電路となる導体、電流を遮断するための遮断器などの開閉装置、電圧を昇降させる変圧器、各電流・電圧を計測するための計器用変成器などの機器が収納されている。配電設備の構成次第では、スイッチギヤ筐体内部に収納される機器の総質量が重くなるため、これらの機器を収納するスイッチギヤ筐体には、地震、吊上げ及び輸送時などに耐えうる高い剛性が求められている。 Inside the switch gears that make up the power distribution equipment, there are conductors that serve as electric circuits for conducting current, switching devices such as circuit breakers for cutting off current, transformers for raising and lowering voltage, and for measuring each current and voltage. Contains equipment such as instrument transformers. Depending on the configuration of the power distribution equipment, the total mass of the equipment housed inside the switchgear housing may be heavy, so the switchgear housing that houses these equipment has high rigidity that can withstand earthquakes, lifting, and transportation. Is required.

従来の盤装置用筐体は、床板部と側面板のコ字状折曲げ板部の内側に、同じくコ字状折曲げの略L字状金具を嵌め込み、それぞれの相対する穴にリベットを打ち込む構造により、コーナ部の剛性を上げてラーメン構造としていた。しかし、金具の折曲部が多く複雑な構造であり、しかもそれぞれの部材の穴あけおよび曲げの仕上がり寸法に高度な加工精度が要求される問題があった。 In the conventional housing for board equipment, a substantially L-shaped metal fitting for U-shaped bending is fitted inside the U-shaped bending plate part of the floor plate and side plates, and rivets are driven into the opposite holes. Due to the structure, the rigidity of the corner part was increased to form a rigid frame structure. However, there is a problem that a metal fitting has many bent portions and has a complicated structure, and a high degree of processing accuracy is required for the finished dimensions of drilling and bending of each member.

また、例えば先行文献1に開示された従来の盤装置用筐体では、筐体の各コーナ部に、基礎固定部にあたる面が二重となるようにして3方向に折曲げられたコーナ金具を筐体の各コーナの左側面板と床板と右側面板の3面間、及び左側面板と天井板と右側面板の3面間をリベット接合し、上下・左右・前後の3方向の剛性を高めてラーメン構造とすることで、基礎固定部の高い剛性を得ると共に、床板部及び側面板を、高度な加工精度を必要としない簡素な構造で構成できる。 Further, for example, in the conventional housing for a board device disclosed in Prior Document 1, each corner portion of the housing is provided with a corner metal fitting bent in three directions so that the surface corresponding to the foundation fixing portion is doubled. Rivets are joined between the left side plate, floor plate and right side plate of each corner of the housing, and between the left side plate, ceiling plate and right side plate to increase the rigidity in the three directions of up and down, left and right, and front and back. By adopting the structure, high rigidity of the foundation fixing portion can be obtained, and the floor plate portion and the side plate can be configured with a simple structure that does not require a high processing accuracy.

国際公開第2015−170426号公報International Publication No. 2015-170426

しかしながら、先行文献1で開示された従来の盤装置用筐体では、先行文献1の図2に示すように、筐体の各コーナ部にそれぞれコーナ金具を取り付け、剛性の向上を図っているが、筐体サイズや収納機器の質量が増加すると、次第にコーナ部の剛性を向上させるだけでは耐震性、吊上げ強度が保証できなくなる。そこで、通常はコーナ金具間に補強金具などの補強部材を取り付け、筐体の剛性を保持する。しかし、コーナ金具と補強金具の間には必ず隙間が発生し、隙間部にはコーナ金具や補強板がなく床板1枚のため、部分的に剛性が低下し、補強の効果が薄れてしまう。また、筐体に外力が加わると、その隙間部分に応力が集中し、最悪、部材が塑性変形する恐れがある。 However, in the conventional housing for board equipment disclosed in Prior Document 1, as shown in FIG. 2 of Prior Document 1, corner metal fittings are attached to each corner portion of the housing to improve the rigidity. As the size of the housing and the mass of the storage equipment increase, seismic resistance and lifting strength cannot be guaranteed simply by gradually improving the rigidity of the corners. Therefore, normally, a reinforcing member such as a reinforcing metal fitting is attached between the corner metal fittings to maintain the rigidity of the housing. However, a gap is always generated between the corner metal fitting and the reinforcing metal fitting, and since there is no corner metal fitting or the reinforcing plate in the gap portion and there is only one floor plate, the rigidity is partially reduced and the reinforcing effect is diminished. Further, when an external force is applied to the housing, stress is concentrated in the gap portion, and in the worst case, the member may be plastically deformed.

この問題を解決するため、先行文献1では、先行文献1の図7に示すように、コーナ金具と補強金具などの補強部材を一体ものに変更し、コーナ金具と補強金具の間に隙間ができない構造にしている。しかし、コーナ金具は、筐体の高い組立精度を維持するため、仕上がり寸法に高度な加工精度が要求される。コーナ金具の二重曲げという複雑な曲げを高精度なものにするには、専用の曲げ金型などを製作する必要があるが、先行文献1の図7に示すように、コーナ金具と補強金具を一体ものにして製作すると、筐体のサイズごとに異なる種類のコーナ金具を製作しなければならなくなり、高コストとなる問題があった。 In order to solve this problem, in Prior Document 1, as shown in FIG. 7 of Prior Document 1, the corner metal fittings and the reinforcing members such as the reinforcing metal fittings are changed to one, and there is no gap between the corner metal fittings and the reinforcing metal fittings. It has a structure. However, in order to maintain high assembly accuracy of the housing, the corner metal fittings are required to have a high degree of processing accuracy in the finished dimensions. In order to make the complicated bending of double bending of the corner metal fittings highly accurate, it is necessary to manufacture a special bending die, etc., but as shown in FIG. 7 of the prior document 1, the corner metal fittings and the reinforcing metal fittings If the above are manufactured as a single unit, different types of corner metal fittings must be manufactured for each size of the housing, which causes a problem of high cost.

この発明は、上述のような問題点を解決するためになされたものであり、盤装置用筐体のサイズや収納機器の質量が増加した際に、吊上げなどにより筐体に外力が加わっても、筐体の部分変形を防ぐことができる盤装置用筐体を得ることを目的としている。 The present invention has been made to solve the above-mentioned problems, and even if an external force is applied to the housing by lifting or the like when the size of the housing for the board device or the mass of the storage device increases. The purpose is to obtain a housing for a board device that can prevent partial deformation of the housing.

この発明に係る盤装置用筐体は、周辺部にコ字型に折り曲げられた端部を有する床板と、前記床板の角部に組み付けられ、互いに直角に交わる複数の接合面を有するとともに、前記床板の床面との接合面に上層板と下層板が二重に重ねられた二重折曲部を前記床板の幅方向および奥行方向に対応してそれぞれ有するコーナ金具と、を備え、前記コーナ金具は、前記床板の幅方向および奥行方向において、前記二重折曲部の前記上層板の長さが前記下層板の長さより長いことを特徴とするものである。
The housing for a board device according to the present invention has a floor plate having a U-shaped bent end portion at a peripheral portion, and a plurality of joint surfaces assembled at a corner portion of the floor plate and intersecting each other at right angles. A corner fitting having a double bent portion in which an upper layer plate and a lower layer plate are doubly overlapped on a joint surface of the floor plate with the floor surface corresponding to the width direction and the depth direction of the floor plate, respectively , is provided. The metal fitting is characterized in that the length of the upper layer plate of the double bent portion is longer than the length of the lower layer plate in the width direction and the depth direction of the floor plate.

この発明による盤装置用筐体によれば、盤装置用筐体のサイズに関係なく、高い寸法精度を必要とするコーナ金具を1種類にできるため、コーナ金具製作のための曲げ金型を製作した場合にも、金型コストを削減できる。また、一体ものの金具と違い、盤装置用筐体内に収納する収納機器の質量に応じて、補強金具の有無を調整できるため、部材コスト及び設計コストを最小化できる。 According to the housing for the board device according to the present invention, one type of corner metal fittings requiring high dimensional accuracy can be used regardless of the size of the housing for the board device. Therefore, a bending die for manufacturing the corner metal fittings is manufactured. Even if this is the case, the mold cost can be reduced. Further, unlike the one-piece metal fittings, the presence or absence of the reinforcing metal fittings can be adjusted according to the mass of the storage device housed in the board device housing, so that the member cost and the design cost can be minimized.

この発明の実施の形態1による盤装置用筐体の床部のコーナ部を示す拡大斜視図である。It is an enlarged perspective view which shows the corner part of the floor part of the housing for a board device by Embodiment 1 of this invention. 図1の分解状態を示す分解斜視図である。It is an exploded perspective view which shows the disassembled state of FIG. この発明の実施の形態1による盤装置用筐体の床前面部を示す斜視図である。It is a perspective view which shows the floor front part of the housing for a board device by Embodiment 1 of this invention. この発明の実施の形態1による盤装置用筐体の筐体パネル構造を示す斜視図である。It is a perspective view which shows the housing panel structure of the housing for a board device by Embodiment 1 of this invention. 図1に示すコーナ金具の展開図である。It is a development view of the corner metal fitting shown in FIG. この発明の実施の形態2による盤装置用筐体の床部のコーナ部を示す斜視図である。It is a perspective view which shows the corner part of the floor part of the housing for a board device by Embodiment 2 of this invention. 図6の分解状態を示す分解斜視図である。It is an exploded perspective view which shows the disassembled state of FIG. この発明の実施の形態2による盤装置用筐体の床板とその他の部品の分解状態を示す分解斜視図である。It is an exploded perspective view which shows the disassembled state of the floor plate and other parts of the housing for a board device by Embodiment 2 of this invention. この発明の実施の形態3による盤装置用筐体の床部のコーナ部を示す斜視図である。It is a perspective view which shows the corner part of the floor part of the housing for a board device by Embodiment 3 of this invention. この発明の実施の形態3による盤装置用筐体の床部のコーナ部を示す斜視図である。It is a perspective view which shows the corner part of the floor part of the housing for a board device by Embodiment 3 of this invention.

実施の形態1.
以下、図面に基づいてこの発明の実施の形態1について説明する。なお、各図面において、同一符号は同一あるいは相当部分を示す。
図1は、この発明の実施の形態1による盤装置用筐体の床部のコーナ部を示す拡大斜視図であり、図2は、図1の分解状態を示す分解斜視図である。また、図3は、盤装置用筐体の床部の斜視図であり、図4は盤装置用筐体柱を柱構造からパネル構造に変更した際の斜視図である。図3と図4は、盤装置用筐体の前面部分を示しており、筐体の背面側を筐体の内側から見た図である。また、図5は、図1に示すコーナ金具3の折り曲げ加工前の展開図である。
なお、図3の方向に筐体を見たとき、前方を筐体の前面側とし、後方を背面側とする。そして、左右方向を筐体の幅方向、前面側から背面側に向かう方向を奥行方向と呼ぶ。
Embodiment 1.
Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings. In each drawing, the same reference numerals indicate the same or corresponding parts.
FIG. 1 is an enlarged perspective view showing a corner portion of a floor portion of a board housing according to the first embodiment of the present invention, and FIG. 2 is an exploded perspective view showing an exploded state of FIG. Further, FIG. 3 is a perspective view of the floor portion of the board device housing, and FIG. 4 is a perspective view when the board device housing pillar is changed from a pillar structure to a panel structure. 3 and 4 show a front portion of the board device housing, and is a view of the back side of the housing viewed from the inside of the housing. Further, FIG. 5 is a developed view of the corner metal fitting 3 shown in FIG. 1 before bending.
When the housing is viewed in the direction of FIG. 3, the front side is the front side of the housing and the rear side is the back side. The left-right direction is called the width direction of the housing, and the direction from the front side to the back side is called the depth direction.

まず、図3を参照して、盤装置用筐体の全体から説明する。
図3に示すように、盤装置用筐体50の床部は、床板1、柱2、コーナ金具3、補強金具4及びコーナ金具6で構成されており、盤装置用筐体50は直方体形状の構造である。コーナ金具6は、コーナ金具3と対称に配置されている。また、天井部は、基本的には床部と同じ構成のため説明を省略する。
また、盤装置用筐体50は、例えば補強金具4を床板1の所定の位置に取り付け、続いてコーナ金具3とコーナ金具6を床板1の角部に取り付け、最後に柱2をコーナ金具3とコーナ金具6に取り付けることにより組み立てられる。
図3では、盤装置用筐体50の構造として柱2を用いた柱構造となっているが、これはこの発明の実施の形態1の主要部を説明するための一例であり、例えば、図4に示すように、柱2において柱同士が一体ものとなった右側面パネル7、左側面パネル8としたパネル構造でもよい。この発明の実施の形態1における特徴部は、床板1、柱2に接合されたコーナ金具3と、床板1及びコーナ金具3に接合された補強金具4の接合部分に特徴を有する。
First, with reference to FIG. 3, the entire housing for the board device will be described.
As shown in FIG. 3, the floor portion of the board device housing 50 is composed of a floor plate 1, a pillar 2, a corner metal fitting 3, a reinforcing metal fitting 4, and a corner metal fitting 6, and the board device housing 50 has a rectangular parallelepiped shape. It is the structure of. The corner metal fittings 6 are arranged symmetrically with the corner metal fittings 3. Further, since the ceiling portion has basically the same configuration as the floor portion, the description thereof will be omitted.
Further, in the board device housing 50, for example, the reinforcing metal fitting 4 is attached to a predetermined position of the floor plate 1, the corner metal fitting 3 and the corner metal fitting 6 are attached to the corners of the floor plate 1, and finally the pillar 2 is attached to the corner metal fitting 3. It is assembled by attaching it to the corner metal fitting 6.
In FIG. 3, a pillar structure using a pillar 2 is used as the structure of the board device housing 50, but this is an example for explaining the main part of the first embodiment of the present invention. As shown in 4, the panel structure may be a right side panel 7 and a left side panel 8 in which the pillars are integrated in the pillar 2. The characteristic portion in the first embodiment of the present invention is characterized by a joint portion between the corner metal fitting 3 joined to the floor plate 1 and the pillar 2 and the reinforcing metal fitting 4 joined to the floor plate 1 and the corner metal fitting 3.

まず、図2を参照して、床板1について説明する。床板1は、床板1の床面の四辺の端部にコ字状(U字状のコーナ部分が直角である形状)に折り曲げられて形成された折曲部1a、1bを有している。ここで、床板1の折曲部1a、1bを含まない水平部分を床面と呼ぶ。つまり、床板1の床面の周辺部は、まずL字状に曲げられており、さらにその端部がL字状に折り曲げられている。また、折曲部1a、1bは、端部に数mm程度のC面取りが施されている。また、床板1の床面の角部には、柱2を取り付けるため、折曲部1a、1bは形成されていない。よって、図2の状態から図1に示すように組み立てると、床板1と柱2は面一となるように構成されている。
次に、図2を参照して補強金具4について説明をする。補強金具4は、床板1の折曲部1bとの接合面4aと、床板1及びコーナ金具3の二重折曲内側部3c及び二重折曲外側部3dとの接合面4bと、剛性向上のためのL字状の折曲部4cとで構成されている。補強金具4の断面形状は、コ字状であり、コーナ金具3の形状に合わせたものである。つまり、コーナ金具3とリベット接合した際に、補強金具4とコーナ金具3の隙間を極力小さくすることができる形状とする。
また、柱2は、端部にL字状に折り曲げられた折曲部2aおよび折曲部2bを有している。
First, the floor board 1 will be described with reference to FIG. The floor plate 1 has bent portions 1a and 1b formed by being bent in a U-shape (a shape in which U-shaped corner portions are at right angles) at the four side ends of the floor surface of the floor plate 1. Here, the horizontal portion of the floor plate 1 that does not include the bent portions 1a and 1b is referred to as a floor surface. That is, the peripheral portion of the floor surface of the floor plate 1 is first bent in an L shape, and the end portion thereof is further bent in an L shape. Further, the bent portions 1a and 1b are chamfered with a C chamfer of about several mm at the ends. Further, since the pillar 2 is attached to the corner portion of the floor surface of the floor plate 1, the bent portions 1a and 1b are not formed. Therefore, when assembled as shown in FIG. 1 from the state of FIG. 2, the floor plate 1 and the pillar 2 are configured to be flush with each other.
Next, the reinforcing metal fitting 4 will be described with reference to FIG. The reinforcing metal fitting 4 has improved rigidity with a joint surface 4a of the floor plate 1 with the bent portion 1b and a joint surface 4b of the floor plate 1 and the corner metal fitting 3 with the double bent inner portion 3c and the double bent outer portion 3d. It is composed of an L-shaped bent portion 4c for the purpose. The cross-sectional shape of the reinforcing metal fitting 4 is U-shaped and matches the shape of the corner metal fitting 3. That is, the shape is such that the gap between the reinforcing metal fitting 4 and the corner metal fitting 3 can be made as small as possible when the corner metal fitting 3 is riveted.
Further, the pillar 2 has a bent portion 2a and a bent portion 2b that are bent in an L shape at the end portion.

続いて、図2および図5を参照してコーナ金具3について説明をする。コーナ金具3は、柱2の折曲部2a及び床板1の折曲部1aとの接合面3aと、柱2及び床板1の折曲部1bとの接合面3bと、床板1と接合する二重折曲部である二重折曲内側部3c及び二重折曲外側部3dと、二重折曲内側部3cをL字状に曲げて形成された折曲部3eとで構成されている。
ここでコーナ金具3の二重折曲部とは、例えば鋼板などの板材を図5において点線で示した谷折り部22で折り曲げることにより、床板1の床面に接する部分が上層板と下層板の二枚の板で形成された部分のことを呼ぶ。また、図1、図2で示した二重折曲内側部3cとは、二層構造である二重折曲部の上層板のことを示す。また、二重折曲外側部3dとは、二層構造である二重折曲部の下層板のことを示す。ここで、二重折曲内側部3cと二重折曲外側部3dは平行であり、接合面3a、3b、3cは、互いに直角に交わるように折り曲げられて形成されている。コーナ金具3は、床板1、柱2及び補強金具4と各三方向からリベット接合されている。また、コーナ金具3には、基礎固定用の取付穴20が形成されている。
Subsequently, the corner metal fitting 3 will be described with reference to FIGS. 2 and 5. The corner metal fitting 3 joins the joint surface 3a between the bent portion 2a of the pillar 2 and the bent portion 1a of the floor plate 1, the joint surface 3b between the bent portion 1b of the pillar 2 and the floor plate 1, and the floor plate 1. It is composed of a double-folded inner portion 3c and a double-folded outer portion 3d, which are double-folded portions, and a bent portion 3e formed by bending the double-folded inner portion 3c into an L shape. ..
Here, the double-folded portion of the corner metal fitting 3 is a portion of the floor plate 1 in contact with the floor surface of the floor plate 1 by bending a plate material such as a steel plate at the valley fold portion 22 shown by the dotted line in FIG. It is called the part formed by the two plates of. Further, the double-folded inner portion 3c shown in FIGS. 1 and 2 indicates an upper plate of the double-folded portion having a two-layer structure. Further, the double-folded outer portion 3d indicates a lower layer plate of the double-folded portion having a two-layer structure. Here, the double-folded inner portion 3c and the double-folded outer portion 3d are parallel to each other, and the joint surfaces 3a, 3b, and 3c are formed by being bent so as to intersect each other at right angles. The corner metal fitting 3 is riveted to the floor plate 1, the column 2, and the reinforcing metal fitting 4 from each of the three directions. Further, the corner metal fitting 3 is formed with a mounting hole 20 for fixing the foundation.

床方向以外からのリベット接合は、床板1と補強金具4、柱2とコーナ金具3の接合面3a、柱2とコーナ金具3の接合面3b、と二枚の板でリベット接合されている。
一方、床方向からの接合は、基礎固定部の剛性を高くし、耐震性を高めるため、三枚の板でリベット接合されている。具体的には、床板1、コーナ金具3の二重折曲内側部3c、コーナ金具3の二重折曲外側部3dの三枚、あるいは床板1、コーナ金具3の二重折曲内側部3c、補強金具4の接合面4bの三枚の板材で接合されて耐震性の向上を図っている。
コーナ金具3の二重折曲部は、それぞれ幅方向において長さが異なっており、二重折曲内側部3cの方が、二重折曲外側部3dより長い構造となっている。二重折曲内側部3cと二重折曲外側部3dが重なっている部分は、床板1と、二重折曲内側部3c、二重折曲外側部3dにより三重にリベット接合されている。また、二重折曲内側部3cと二重折曲外側部3dが重なっていない端部は、二重折曲内側部3cにリベット穴5が設けられており、このリベット穴5を用いて、床板1、補強金具4の接合面4b、二重折曲内側部3cが三重にリベット接合されている。
The rivet joint from other than the floor direction is rivet-joined with two plates: the floor plate 1 and the reinforcing metal fitting 4, the joint surface 3a between the column 2 and the corner metal fitting 3, and the joint surface 3b between the column 2 and the corner metal fitting 3.
On the other hand, the joint from the floor direction is riveted with three plates in order to increase the rigidity of the foundation fixing portion and enhance the seismic resistance. Specifically, the floor plate 1, the corner metal fitting 3 double-folded inner portion 3c, the corner metal fitting 3 double-folded outer portion 3d, or the floor plate 1 and the corner metal fitting 3 double-folded inner portion 3c. , The joint surface 4b of the reinforcing metal fitting 4 is joined by three plates to improve the seismic resistance.
The double-folded portions of the corner metal fittings 3 have different lengths in the width direction, and the double-folded inner portion 3c has a structure longer than the double-folded outer portion 3d. The portion where the double-folded inner portion 3c and the double-folded outer portion 3d overlap is triple-rivet-joined by the floor plate 1, the double-folded inner portion 3c, and the double-folded outer portion 3d. Further, at the end where the double-folded inner portion 3c and the double-folded outer portion 3d do not overlap, a rivet hole 5 is provided in the double-folded inner portion 3c, and the rivet hole 5 is used. The floor plate 1, the joint surface 4b of the reinforcing metal fitting 4, and the double-bent inner portion 3c are riveted in three layers.

この発明の実施の形態1において、コーナ金具3の二重折曲内側部3cの幅方向の長さは、接合面3bと同一でも問題ないが、図2に示すように、接合面3b、二重折曲内側部3c、二重折曲外側部3dの長さがそれぞれ異なる長さの方がよい。これは、コーナ金具3と補強金具4の隙間が幅方向において不連続であれば、隙間部分をコーナ金具3及び補強金具4の剛性で補いやすくなるためである。詳細を後述にて説明する。
比較例となる従来の筐体構造において、コーナ金具と補強金具との間に隙間を有する筐体構造における幅方向の断面二次モーメントを考えると、コーナ金具と補強部材の間に隙間ができ床板一枚となるため、隙間部分の剛性が非常に低くなる。
しかし、この発明の実施の形態1における盤装置用筐体50の構造では、図1に示すように、コーナ金具3と補強金具4との間に3ヶ所の隙間を有しているが、各隙間には最低でもコーナ金具3及び補強金具4のL字曲げ以上の剛性を有する鋼板が配置されている。
In the first embodiment of the present invention, the length in the width direction of the double bent inner portion 3c of the corner metal fitting 3 may be the same as that of the joint surface 3b, but as shown in FIG. 2, the joint surfaces 3b and 2 It is preferable that the lengths of the double-folded inner portion 3c and the double-folded outer portion 3d are different from each other. This is because if the gap between the corner metal fitting 3 and the reinforcing metal fitting 4 is discontinuous in the width direction, the gap portion can be easily supplemented by the rigidity of the corner metal fitting 3 and the reinforcing metal fitting 4. Details will be described later.
Considering the moment of inertia of area in the width direction in the housing structure in which there is a gap between the corner metal fitting and the reinforcing metal fitting in the conventional housing structure as a comparative example, a gap is formed between the corner metal fitting and the reinforcing member and the floor plate. Since it is a single piece, the rigidity of the gap is very low.
However, in the structure of the board device housing 50 according to the first embodiment of the present invention, as shown in FIG. 1, there are three gaps between the corner metal fitting 3 and the reinforcing metal fitting 4, but each of them has a gap. A steel plate having at least a rigidity equal to or higher than the L-shaped bending of the corner metal fitting 3 and the reinforcing metal fitting 4 is arranged in the gap.

具体的には、図1に示すように、二重折曲外側部3dと補強金具4の接合面4bの隙間16には、コーナ金具3の二重折曲内側部3c、折曲部3eで構成されたL字状折曲部があるので、金具間を連結する際にできてしまう隙間16に対して、十分な剛性を有する。
また、コーナ金具3の接合面3bと補強金具4の接合面4aの隙間17にも、同じくコーナ金具3の二重折曲内側部3c、折曲部3eで構成されたL字状鋼板と補強金具4の接合面4bがあるため、金具間を連結する際にできてしまう隙間17に対しても、十分な剛性を有する。さらにまた、コーナ金具3の折曲部3eと補強金具の折曲部4cの隙間18には、補強金具4の接合面4a、接合面4bで構成されたL字状折曲部があるため、金具間を連結する際にできてしまう隙間部分に対して、十分な剛性を有した構造である。
つまり、コーナ金具3と補強金具4の間にできる隙間16、17、18は、最低でも必ずコーナ金具3、あるいは補強金具4のL字状に折曲げられた鋼板で構成されるので、隙間16、17、18の各部分も高い剛性を維持でき、かつ応力が集中する問題を解消できる。
これにより、盤装置用筐体のサイズや収納機器の質量が増加した際に、吊上げやバールによる筐体床部持ち上げなどにより、筐体に外力が加わっても、筐体が部分変形するのを防ぐことができる。
Specifically, as shown in FIG. 1, in the gap 16 between the double-folded outer side portion 3d and the joint surface 4b of the reinforcing metal fitting 4, the double-folded inner portion 3c and the bent portion 3e of the corner metal fitting 3 are formed. Since there is an L-shaped bent portion that is configured, it has sufficient rigidity against the gap 16 that is created when connecting the metal fittings.
Further, the gap 17 between the joint surface 3b of the corner metal fitting 3 and the joint surface 4a of the reinforcing metal fitting 4 is also reinforced with an L-shaped steel plate composed of the double bent inner portion 3c and the bent portion 3e of the corner metal fitting 3. Since there is a joint surface 4b of the metal fitting 4, it has sufficient rigidity even with respect to the gap 17 created when connecting the metal fittings. Furthermore, since the gap 18 between the bent portion 3e of the corner metal fitting 3 and the bent portion 4c of the reinforcing metal fitting has an L-shaped bent portion composed of the joint surface 4a and the joint surface 4b of the reinforcing metal fitting 4. The structure has sufficient rigidity against the gaps created when connecting the metal fittings.
That is, the gaps 16, 17, and 18 formed between the corner metal fitting 3 and the reinforcing metal fitting 4 are always composed of at least the corner metal fitting 3 or the L-shaped steel plate of the reinforcing metal fitting 4, so that the gap 16 is formed. High rigidity can be maintained in each of the parts of, 17 and 18, and the problem of stress concentration can be solved.
As a result, when the size of the housing for the board device or the mass of the storage device increases, the housing is partially deformed even if an external force is applied to the housing by lifting or lifting the floor of the housing with a bar. Can be prevented.

筐体のサイズが変わった場合は、コーナ金具3の形状及び補強金具4の末端部分の形状は変更せず、補強金具4の全長を調整する。これにより、コーナ金具3は1種類だけ製作すればよいため、コスト削減につながる。
また、筐体のサイズが縮小、あるいは筐体内に収納する収納機器が少なくなった場合は、補強金具4を取り外して運用することが可能である。収納機器の状況に応じて、補強金具4の有無を容易に調整できるので、部材コストの削減だけでなく、設計コストも抑えることができる。
この発明の実施の形態1においては、コーナ金具3の二重折曲内側部3cをL字状に曲げた折曲部3eを一例としているが、折曲部3eの折曲形状は、L字状曲げ以外にZ曲げ、コ字状曲げ、ヘミング曲げなどでもよく、要するに幅方向において剛性を上げるための断面形状を有する構造としていればよい。
なお、この発明の実施の形態1のコーナ金具3は、曲げ加工を前提に説明しているが、鋳造あるいは鍛造で製作されていてもよい。
When the size of the housing is changed, the shape of the corner metal fitting 3 and the shape of the end portion of the reinforcing metal fitting 4 are not changed, and the total length of the reinforcing metal fitting 4 is adjusted. As a result, only one type of corner metal fitting 3 needs to be manufactured, which leads to cost reduction.
Further, when the size of the housing is reduced or the number of storage devices to be stored in the housing is reduced, the reinforcing metal fitting 4 can be removed for operation. Since the presence or absence of the reinforcing metal fitting 4 can be easily adjusted according to the situation of the storage device, not only the member cost can be reduced but also the design cost can be suppressed.
In the first embodiment of the present invention, an example is a bent portion 3e in which the double bent inner portion 3c of the corner metal fitting 3 is bent into an L shape, but the bent shape of the bent portion 3e is an L shape. In addition to the shape bending, Z bending, U-shaped bending, hemming bending and the like may be performed, and in short, the structure may have a cross-sectional shape for increasing the rigidity in the width direction.
Although the corner metal fitting 3 according to the first embodiment of the present invention has been described on the premise of bending, it may be manufactured by casting or forging.

実施の形態2.
図6は、実施の形態2による盤装置用筐体の床コーナ部を拡大した斜視図であり、図7は、図6の分解状態を示す分解斜視図である。また、図8は、盤装置用筐体の床板とその他の部品の分解状態を示す分解斜視図である。
実施の形態1では、補強金具4を幅方向に使用してコーナ金具3と連結していたのに対し、この発明の実施の形態2では、図7に示すように、幅方向だけでなく、奥行方向にも幅方向に用いた補強金具4と末端部が同形状の補強金具11を使用し、コーナ金具9と連結する。コーナ金具9は、接合面9aと、接合面9bと、床板10と接合する二重折曲部である二重折曲内側部9c及び二重折曲外側部9dと、二重折曲内側部9cをL字状に曲げて形成された折曲部9eおよび折曲部9fとで構成されている。
Embodiment 2.
FIG. 6 is an enlarged perspective view of the floor corner portion of the board device housing according to the second embodiment, and FIG. 7 is an exploded perspective view showing an exploded state of FIG. Further, FIG. 8 is an exploded perspective view showing an exploded state of the floor plate and other parts of the board device housing.
In the first embodiment, the reinforcing metal fitting 4 is used in the width direction to connect with the corner metal fitting 3, whereas in the second embodiment of the present invention, as shown in FIG. 7, not only in the width direction but also in the width direction. A reinforcing metal fitting 4 used in the width direction also in the depth direction and a reinforcing metal fitting 11 having the same shape at the end are used, and are connected to the corner metal fitting 9. The corner metal fitting 9 includes a joint surface 9a, a joint surface 9b, a double-folded inner portion 9c and a double-folded outer portion 9d, which are double-folded portions to be joined to the floor plate 10, and a double-folded inner portion. It is composed of a bent portion 9e and a bent portion 9f formed by bending 9c into an L shape.

コーナ金具9の形状は、幅方向においては実施の形態1におけるコーナ金具3と同形状であり、奥行方向においては二重折曲内側部9cをL字状に曲げてできた折曲部9eおよび折曲部9fを有し、かつ、幅方向と同じく、奥行方向にも二重折曲内側部9cの方が、二重折曲外側部9dより長い。これにより、幅方向に配置した補強金具4と同様、奥行方向に配置した補強金具11の隙間部は、最低でもL字曲げ以上の剛性を有するコーナ金具9あるいは補強金具11で形成される。また、リベット穴12を用いて、床板10、補強金具11、二重折曲内側部9cはリベット接合されている。
図8に示すように、幅方向はコーナ金具9と、コーナ金具9と対称の形状を有するコーナ金具13の間に、補強金具4を連結させ、奥行方向においても、コーナ金具9とコーナ金具13の間に、補強金具11を連結させているため、筐体全体の剛性を向上できる。これにより、例えば、筐体サイズが幅方向だけでなく奥行方向に広がった際に筐体に外力が加わっても、筐体が部分変形するのを防ぐことができる。
The shape of the corner metal fitting 9 is the same as that of the corner metal fitting 3 in the first embodiment in the width direction, and in the depth direction, the bent portion 9e formed by bending the double bent inner portion 9c into an L shape and The double-folded inner portion 9c is longer than the double-folded outer portion 9d in the depth direction as well as in the width direction and has the bent portion 9f. As a result, similarly to the reinforcing metal fitting 4 arranged in the width direction, the gap portion of the reinforcing metal fitting 11 arranged in the depth direction is formed by the corner metal fitting 9 or the reinforcing metal fitting 11 having a rigidity of at least L-shaped bending or more. Further, the floor plate 10, the reinforcing metal fitting 11, and the double bent inner portion 9c are rivet-joined by using the rivet hole 12.
As shown in FIG. 8, the reinforcing metal fitting 4 is connected between the corner metal fitting 9 in the width direction and the corner metal fitting 13 having a shape symmetrical to the corner metal fitting 9, and the corner metal fitting 9 and the corner metal fitting 13 are also connected in the depth direction. Since the reinforcing metal fitting 11 is connected between the two, the rigidity of the entire housing can be improved. This makes it possible to prevent the housing from being partially deformed even if an external force is applied to the housing when, for example, the housing size expands not only in the width direction but also in the depth direction.

実施の形態3.
図9は、この発明の実施の形態3による盤装置用筐体の床コーナ部を拡大した斜視図であり、図10は、図9の分解状態を示す分解斜視図である。
実施の形態3において、コーナ金具14は、接合面14aと、接合面14bと、床板15と接合する二重折曲部である二重折曲内側部14c及び二重折曲外側部14dと、二重折曲内側部14cをコ字状に曲げて形成された折曲面14eおよび折曲面14fとで構成されている。
実施の形態1では、コーナ金具3の二重折曲内側部3cをL字形状に折曲げた折曲部3eを形成していたのに対し、この発明の実施の形態3では、コーナ金具14の二重折曲内側部14cをコ字状に折曲げており、折曲面14e及び折曲面14fを形成している。コーナ金具14の折曲面14fには、リベット穴19が設けられている。コーナ金具14は、実施の形態1と同様のリベット接合構造をするのに加え、折曲面14fにあるリベット穴19を用いて、床板15の折曲部15cとリベット接合する。
Embodiment 3.
FIG. 9 is an enlarged perspective view of the floor corner portion of the board housing according to the third embodiment of the present invention, and FIG. 10 is an exploded perspective view showing an exploded state of FIG. 9.
In the third embodiment, the corner metal fitting 14 includes a joint surface 14a, a joint surface 14b, a double-folded inner portion 14c and a double-folded outer portion 14d which are double-folded portions to be joined to the floor plate 15. It is composed of a folded curved surface 14e and a folded curved surface 14f formed by bending the inner portion 14c of the double bend into a U shape.
In the first embodiment, the double-folded inner portion 3c of the corner metal fitting 3 is bent into an L shape to form the bent portion 3e, whereas in the third embodiment of the present invention, the corner metal fitting 14 is formed. The double-folded inner portion 14c of the above is bent in a U-shape to form a folded curved surface 14e and a folded curved surface 14f. A rivet hole 19 is provided on the folded curved surface 14f of the corner metal fitting 14. In addition to having the same rivet joining structure as in the first embodiment, the corner metal fitting 14 is riveted to the bent portion 15c of the floor plate 15 by using the rivet hole 19 on the folded curved surface 14f.

コーナ金具14は、二重折曲内側部14cと床板15の床面15aのリベット接合と、接合面14bと床板15の折曲部15bのリベット接合と、折曲面14fと床板15の折曲部15cのリベット接合により、3面から強固に接合されている。そのため、前述した接合部付近は、コーナ金具14と床板15を一体ものと同等の剛性とみなすことができる。コーナ金具14と床板15が一体ものであるとすると、接合部付近の筐体の幅方向における断面形状は、コーナ金具14の折曲面14f、折曲面14e、二重折曲内側部14c、補強金具4の接合面4b、床板15の折曲部15b、15cで構成された矩形形状の断面となるため、コーナ金具14と補強金具4の連結部の剛性が格段に向上し、より強固な筐体構造を有することが可能となる。
なお、この発明は、その発明の範囲内において、各実施の形態を自由に組み合わせたり、各実施の形態を適宜、変形、省略することが可能である。
The corner metal fittings 14 are rivet-joined between the double-folded inner portion 14c and the floor surface 15a of the floor plate 15, rivet-bonded between the joint surface 14b and the bent portion 15b of the floor plate 15, and the folded curved surface 14f and the bent portion of the floor plate 15. It is firmly joined from three surfaces by rivet joining of 15c. Therefore, in the vicinity of the joint portion described above, the corner metal fitting 14 and the floor plate 15 can be regarded as having the same rigidity as the one integrated. Assuming that the corner metal fitting 14 and the floor plate 15 are integrated, the cross-sectional shape of the corner metal fitting 14 in the width direction of the housing is the bent curved surface 14f, the folded curved surface 14e, the double bent inner portion 14c, and the reinforcing metal fitting. Since the cross section has a rectangular shape composed of the joint surface 4b of 4 and the bent portions 15b and 15c of the floor plate 15, the rigidity of the connecting portion between the corner metal fitting 14 and the reinforcing metal fitting 4 is remarkably improved, and the housing is stronger. It is possible to have a structure.
In the present invention, each embodiment can be freely combined, and each embodiment can be appropriately modified or omitted within the scope of the invention.

1 床板、1a、1b 折曲部、2 柱、2a、2b 折曲部、3 コーナ金具、3a、3b 接合面、3c 二重折曲内側部、3d 二重折曲外側部、3e 折曲部、4 補強金具、4a、4b 接合面、4c 折曲部、5 リベット穴、6 コーナ金具、7 右側面パネル、8 左側面パネル、9 コーナ金具、9a、9b 接合面、9c 二重折曲内側部、9d 二重折曲外側部、9e、9f 折曲部、10 床板、11 補強金具、12 リベット穴、13 コーナ金具、14 コーナ金具、14a、14b 接合面、14c 二重折曲内側部、14d 二重折曲外側部、14e、14f 折曲面、15 床板、15a 床面、15b、15c 折曲部、16、17、18 隙間、19 リベット穴、20 取付穴 1 Floor board, 1a, 1b bent part, 2 pillars, 2a, 2b bent part, 3 corner metal fittings, 3a, 3b joint surface, 3c double bent inner part, 3d double bent outer part, 3e bent part 4, Reinforcing metal fittings, 4a, 4b Joint surface, 4c Bent part, 5 Rivets, 6 Corner metal fittings, 7 Right side panel, 8 Left side panel, 9 Corner metal fittings, 9a, 9b Joint surface, 9c Double bending inside Part, 9d double bent outer part, 9e, 9f bent part, 10 floor plate, 11 reinforcing metal fittings, 12 rivet holes, 13 corner metal fittings, 14 corner metal fittings, 14a, 14b joint surface, 14c double bent inner part, 14d double bent outer part, 14e, 14f folded curved surface, 15 floor plate, 15a floor surface, 15b, 15c bent part, 16, 17, 18 gap, 19 rivet hole, 20 mounting hole

Claims (5)

周辺部にコ字型に折り曲げられた端部を有する床板と、
前記床板の角部に組み付けられ、互いに直角に交わる複数の接合面を有するとともに、前記床板の床面との接合面に上層板と下層板が二重に重ねられた二重折曲部を前記床板の幅方向および奥行方向に対応してそれぞれ有するコーナ金具と、を備え、
前記コーナ金具は、前記床板の幅方向および奥行方向において、前記二重折曲部の前記上層板の長さが前記下層板の長さより長いことを特徴とする盤装置用筐体。
A floorboard with a U-shaped bent edge at the periphery,
The double bent portion, which is assembled to the corner portion of the floor plate and has a plurality of joint surfaces intersecting each other at right angles, and in which the upper layer plate and the lower layer plate are doubly overlapped on the joint surface of the floor plate with the floor surface, is described. It is equipped with corner metal fittings that correspond to the width direction and depth direction of the floor board .
The corner metal fitting is a housing for a board device, characterized in that the length of the upper layer plate of the double bent portion is longer than the length of the lower layer plate in the width direction and the depth direction of the floor plate.
前記床板の角部にそれぞれ取り付けられた複数の前記コーナ金具を有しており、
前記複数のコーナ金具間に配置され、コ字状に折り曲げて形成された補強金具を有し、
前記二重折曲部の前記上層板と前記補強金具が連結された構造を有することを特徴とする請求項1に記載の盤装置用筐体。
It has a plurality of the corner fittings attached to the corners of the floor plate, respectively.
It has a reinforcing metal fitting that is arranged between the plurality of corner metal fittings and is formed by bending in a U shape.
The housing for a board device according to claim 1, further comprising a structure in which the upper plate of the double bent portion and the reinforcing metal fitting are connected.
前記コーナ金具の前記二重折曲部は、板材の3カ所を直角に折り曲げて形成された折曲面のうち2面を二重に重ねて構成されたことを特徴とする請求項1または請求項2に記載の盤装置用筐体。 Claim 1 or claim, wherein the double bent portion of the corner metal fitting is formed by double overlapping two surfaces of a folded curved surface formed by bending three points of a plate material at a right angle. 2. The housing for a board device according to 2. 前記コーナ金具の前記上層板には、断面形状がL字状の折曲部が設けられていることを特徴とする請求項1から請求項3のいずれか1項に記載の盤装置用筐体。 The housing for a board device according to any one of claims 1 to 3, wherein the upper plate of the corner metal fitting is provided with a bent portion having an L-shaped cross section. .. 前記コーナ金具の前記上層板には、断面形状がZ字状あるいはコ字状あるいはヘミング曲げに折り曲げられて形成された折曲部を有することを特徴とする請求項1から請求項3のいずれか1項に記載の盤装置用筐体。 Any of claims 1 to 3, wherein the upper plate of the corner metal fitting has a bent portion formed by bending the upper plate into a Z-shape, a U-shape, or a hemming bend. The housing for a board device according to item 1.
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