JPH07112213A - Casing structural member and bending die therefor - Google Patents
Casing structural member and bending die thereforInfo
- Publication number
- JPH07112213A JPH07112213A JP25821193A JP25821193A JPH07112213A JP H07112213 A JPH07112213 A JP H07112213A JP 25821193 A JP25821193 A JP 25821193A JP 25821193 A JP25821193 A JP 25821193A JP H07112213 A JPH07112213 A JP H07112213A
- Authority
- JP
- Japan
- Prior art keywords
- bent portion
- angled bent
- die
- bending
- punch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えばＯＣＲ装置、ス
キャナ、プリンタ、複写機等の機器類の外殻を構成する
筐体構成部材およびその曲げ加工用金型に関するもので
あり、特に例えば塩化ビニルのような有機質材料からな
る被覆を有する鋼板その他の金属板によって構成された
筐体構成部材およびその曲げ加工用金型に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a casing constituting member which constitutes an outer shell of equipment such as an OCR device, a scanner, a printer, a copying machine, etc., and a metal mold for bending thereof. The present invention relates to a casing constituent member made of a steel plate or other metal plate having a coating made of an organic material such as vinyl, and a bending die thereof.
【０００２】[0002]
【従来の技術】図１１はＯＣＲ装置（光学式文字読取装
置）の例を示す要部斜視図である。図１１において、１
は固定ユニット、２は可動ユニットであり、文字読取手
段、用紙搬送装置等を内蔵し、スタッカ３から挿入した
用紙に記載された文字情報を読取り、電気信号に変換し
てＣＰＵ（中央制御装置）等へ入力するものである。４
は排出スタッカであり、読取り後の用紙を収納するため
のものである。2. Description of the Related Art FIG. 11 is a perspective view of an essential part showing an example of an OCR device (optical character reading device). In FIG. 11, 1
Is a fixed unit, 2 is a movable unit, which has a built-in character reading means, a sheet conveying device, etc., reads the character information written on the sheet inserted from the stacker 3, converts it into an electric signal, and CPU (central control unit) And so on. Four
Is a discharge stacker for storing the read sheets.
【０００３】可動ユニット２は、例えば固定ユニット１
の後端部に設けられた回動軸（図示せず）を介して選択
的に回動可能に構成されており、例えば用紙のジャミン
グ発生時、保守点検時等において、可動ユニット２を回
動させ、装置内部を開放し、所定の作業を行ない得るよ
うになっている。固定ユニット１および可動ユニット２
の外殻部は、例えば側板５およびカバー６によって包囲
され、内蔵する機能部材の保護を図っている。The movable unit 2 is, for example, the fixed unit 1.
The movable unit 2 is configured to be selectively rotatable via a rotation shaft (not shown) provided at the rear end of the movable unit 2 when, for example, paper jamming occurs or when maintenance is performed. Then, the inside of the apparatus is opened and a predetermined work can be performed. Fixed unit 1 and movable unit 2
The outer shell part is surrounded by, for example, the side plate 5 and the cover 6 to protect the functional member contained therein.
【０００４】図１２は図１１における側板５を示す要部
斜視図、図１３は図１２におけるＡ部拡大斜視図であ
る。図１２および図１３において、側板５の上下端縁は
強度確保および図１１に示すカバー６との組合せ合体の
ために、直角折曲部７が形成されており、更に上端縁に
は側板５の平坦部と平行に延びる平行部８が形成されて
いるのが通常である。また角隅部９は操作者の安全確保
および装置全体の美観維持のために、円筒面状に形成さ
れている。FIG. 12 is a perspective view of an essential part showing the side plate 5 in FIG. 11, and FIG. 13 is an enlarged perspective view of a portion A in FIG. 12 and 13, a right-angled bent portion 7 is formed at the upper and lower edges of the side plate 5 in order to secure the strength and to combine with the cover 6 shown in FIG. A parallel portion 8 that extends parallel to the flat portion is usually formed. Further, the corner portion 9 is formed in a cylindrical surface shape in order to ensure the safety of the operator and maintain the beauty of the entire apparatus.
【０００５】[0005]
【発明が解決しようとする課題】上記のような構成の側
板５を製作する場合は、例えば鉄板若しくは鋼板に板金
加工を施す手段が最も一般的であり、加工後において表
面に防蝕、美観維持のために塗装を施すのが通常であ
る。しかしながら、図１２および図１３に示すように、
円筒面状の角隅部９を形成する際には極めて煩雑な加工
手段が必要である。In the case of manufacturing the side plate 5 having the above-mentioned structure, for example, a means for subjecting an iron plate or a steel plate to sheet metal working is the most common, and after processing, the surface is protected from corrosion and aesthetics are maintained. Therefore, it is usual to apply paint. However, as shown in FIGS. 12 and 13,
When forming the cylindrical corner portion 9, extremely complicated processing means is required.
【０００６】すなわち、平坦部に対して直角に突出する
直角折曲部７が一体に形成されているため、角隅部９を
形成する場合において、直角折曲部７の外縁と内縁との
曲率半径が相違するので、単なるプレス曲げ加工では成
形できない。また単なるプレス曲げ加工によるときに
は、角隅部９の直角折曲部７にしわが発生したり、亀裂
が発生するという非所望な事態に至る。更に直角折曲部
７に連続して平行部８を有するような所謂段付状の形状
のものは、単なるプレス曲げ加工では成形できないのが
通常である。That is, since the right-angled bent portion 7 projecting at a right angle to the flat portion is integrally formed, when the corner portion 9 is formed, the curvature of the outer edge and the inner edge of the right-angled bent portion 7 is formed. Since the radii are different, it cannot be formed by simple press bending. Further, when the press bending is simply performed, an undesired situation occurs in which the right-angled bent portion 7 of the corner portion 9 is wrinkled or cracked. Further, a so-called stepped shape having a parallel portion 8 continuous with the right-angled bent portion 7 cannot usually be formed by simple press bending.
【０００７】上記のような側板５の角隅部９を成形する
には、絞り成形手段によるか、角隅部９の部位の直角折
曲部７および平行部８の一部を切除した状態でプレス曲
げ加工を実施した後、溶接接合するか、何れかによらな
ければならない。しかしながら、絞り成形手段による場
合には、専用の絞り成形用金型が必要であり、場合によ
っては複数工程用のものが必要となり、金型製作費も含
めた加工コストが嵩むのみならず、側板５の部分的設計
変更に対しても新規の成形用金型が必要となるため、更
に加工コストの高騰を招来する。In order to form the corner portion 9 of the side plate 5 as described above, a drawing forming means is used, or the right angled portion 7 and the parallel portion 8 at the corner portion 9 are cut off. After carrying out press bending, either welding or joining must be performed. However, in the case of using the draw forming means, a dedicated draw forming die is required, and in some cases, a die for a plurality of steps is required, which not only increases the processing cost including the die manufacturing cost but also increases the side plate. Since a new molding die is required even for the partial design change of item 5, the processing cost is further increased.
【０００８】一方溶接接合手段を併用した場合において
も、角隅部９を成形若しくは整形するための作業が極め
て煩雑であるのみならず、作業に熟練を要し、特に薄肉
鉄板の溶接接合の場合には、溶接後の寸法精度が不満足
となることが多い。更にこのような溶接作業は自動化が
困難であるため、手作業に依存するため、後処理作業も
含めて加工コストが嵩むと共に生産効率の向上が望めな
いという問題点がある。On the other hand, even when the welding and joining means is used together, not only the work for forming or shaping the corner portion 9 is extremely complicated but also the skill is required for the work, particularly in the case of welding and joining thin iron plates. In many cases, the dimensional accuracy after welding is unsatisfactory. Further, since it is difficult to automate such welding work, it depends on manual work, so that there is a problem that the processing cost including post-processing work increases and the improvement of production efficiency cannot be expected.
【０００９】次に従来においては、鉄板若しくは鋼板か
ら成形後において前記のように塗装作業が必要である
が、塗装作業を行なう場合には、その前後の処理作業も
含めて手作業への依存度が高く、全体の加工コストを高
騰させる一因ともなっている。このため近年において
は、例えば塩化ビニルのような有機質材料からなる被覆
を有する鉄板若しくは鋼板の使用により、成形後の塗装
作業を省略する手段が多用されている。Next, conventionally, the coating work is required after forming from an iron plate or a steel plate as described above. However, when performing the painting work, the degree of dependence on the manual work including the processing work before and after the coating work is required. Is high, which is also one of the factors that increase the overall processing cost. For this reason, in recent years, by using an iron plate or a steel plate having a coating made of an organic material such as vinyl chloride, a means for omitting the painting work after molding has been widely used.
【００１０】しかしながら前記図１２および図１３に示
すような形状の側板５を、例えば塩化ビニル被覆鋼板に
よって成形することは殆ど不可能である。すなわち絞り
成形を行なった場合には、角隅部９における直角折曲部
７および平行部８にしわ、亀裂が発生し、被覆が剥離す
ることとなり、防蝕機能を喪失するのみでなく、著しく
美観を損ない、商品価値をも喪失することとなる。一方
溶接接合作業を伴う成形作業は、被覆を溶損することと
なるため、適用は全く不可能であるという問題点があ
る。However, it is almost impossible to form the side plate 5 having the shape shown in FIGS. 12 and 13 from a vinyl chloride coated steel plate, for example. That is, when drawing is performed, wrinkles and cracks are generated in the right-angled bent portion 7 and the parallel portion 8 in the corner portion 9, the coating is peeled off, and not only the anticorrosion function is lost but also the appearance is significantly improved. Will be lost and the commercial value will be lost. On the other hand, there is a problem in that the forming work accompanied by the welding and joining work cannot completely be applied because the coating will be melted and damaged.
【００１１】本発明は、上記従来技術に存在する問題点
を解決し、例えば塩化ビニルのような有機質材料からな
る被覆を有する金属板によっても容易かつ高精度に成形
し得る筐体構成部材およびその曲げ加工用金型を提供す
ることを目的とする。The present invention solves the above-mentioned problems existing in the prior art, and can be easily and highly accurately molded by a metal plate having a coating made of an organic material such as vinyl chloride, and a casing component thereof. It is an object to provide a bending die.
【００１２】[0012]
【課題を解決するための手段】上記目的を達成するため
に、まず第１の発明においては、有機質材料からなる被
覆を有する金属板からなり、平坦部の少なくとも一方の
端縁に沿って幅寸法ｗなる一体の直角折曲部を形成し、
この直角折曲部を含む平面内において所定角度直角折曲
部側に折曲げ、かつ円筒面状の角隅部を設けてなる筐体
構成部材において、少なくとも角隅部の直角折曲部の幅
寸法ｗ1 をｗ1 ＜ｗに形成する、という技術的手段を採
用した。In order to achieve the above object, in the first aspect of the invention, a width dimension is formed along at least one end edge of a flat portion by a metal plate having a coating made of an organic material. Form an integral right-angled bent part w
In a housing component formed by bending a right-angled bent portion side at a predetermined angle in a plane including the right-angled bent portion and providing a cylindrical corner portion, at least the width of the right-angled bent portion of the corner portion. The technical means of forming the dimension w 1 to be w 1 <w was adopted.
【００１３】次に第２の発明においては、有機質材料か
らなる被覆を有する金属板からなり、平坦部の少なくと
も一方の端縁に沿って幅寸法ｗなる一体の直角折曲部お
よびこの直角折曲部から前記平坦部と平行に外方に延び
る一体の平行部を形成し、前記直角折曲部を含む平面内
において所定角度直角折曲部側に折曲げ、かつ円筒面状
の角隅部を設けてなる筐体構成部材において、少なくと
も角隅部の直角折曲部の幅寸法ｗ1 をｗ1 ＜ｗに形成す
ると共に、角隅部若しくはその近傍の平行部に不連続部
を形成する、という技術的手段を採用した。Next, in a second aspect of the present invention, an integral right-angled bent portion having a width dimension w along at least one edge of the flat portion and a right-angled bent portion formed of a metal plate having a coating made of an organic material. Forming an integral parallel portion that extends outward from the portion in parallel with the flat portion, and bends at a predetermined angle to the right-angled bent portion in a plane including the right-angled bent portion, and forms a cylindrical corner portion. In the provided housing component, at least the width dimension w 1 of the right-angled bent portion of the corner portion is formed so that w 1 <w, and the discontinuous portion is formed in the corner portion or in the parallel portion in the vicinity thereof. I adopted the technical means.
【００１４】更に第３の発明においては、有機質材料か
らなる被覆を有する金属板からなり、平坦部の少なくと
も一方の端縁に沿って幅寸法ｗなる一体の直角折曲部を
形成し、この直角折曲部を含む平面内において所定角度
直角折曲部側に折曲げ、かつ円筒面状の角隅部を設けて
なる筐体構成部材の曲げ加工用金型において、横断面輪
郭の一部をＶ字状に形成した凹部を有するダイと、先端
部の横断面輪郭を円弧状に形成しかつ前記ダイと接離可
能に形成したポンチとによって構成すると共に、前記ポ
ンチおよび／または前記ポンチの端面と前記ダイの端面
との間に前記直角折曲部の金属板の厚さ寸法より僅かに
大なる隙間寸法に形成した挟持部を前記ポンチの移動方
向に沿って設け、この挟持部に前記直角折曲部を係止さ
せることにより曲げ加工時における前記筐体構成部材と
前記ポンチおよびダイとの前記直角折曲部の厚さ方向の
相対移動を拘束するように構成する、という技術的手段
を採用した。Further, in the third aspect of the invention, an integrally formed right-angled bent portion having a width dimension w is formed along at least one end edge of the flat portion, the metal plate having a coating made of an organic material. In a bending die for a casing component, which is bent to a bent portion side at a right angle at a predetermined angle in a plane including the bent portion, and provided with a corner portion of a cylindrical surface, The punch and / or the end surface of the punch are formed by a die having a V-shaped concave portion and a punch having a cross-sectional contour of a tip portion formed in an arc shape and capable of coming into contact with and separating from the die. And the end surface of the die, a sandwiching portion formed with a clearance dimension slightly larger than the thickness dimension of the metal plate of the right-angled bent portion is provided along the moving direction of the punch, and the sandwiching portion is provided with the right angle. Bending by locking the bent part Wherein configured to restrain the housing components relative movement thickness direction of the right-angled bent portion between the punch and die at the time of processing, employing the technical means of.
【００１５】本発明において被覆を形成する有機質材料
としては、付着性、耐候性、防蝕性、光沢、表面硬度な
ど一般塗料にも共通する特性の他に、速硬化性、加工性
が強く要求されるが、アミノアルキド系、ポリエステル
系、オルガノゾル、ブラスチゾル（ビニル系）、エポキ
シ系、アクリル系、シリコーン系、ポリビニリデンフル
オライド系、アクリルエマルジョン、水溶性アクリル
系、水溶性ポリエステル系等の公知のものが使用でき
る。In the present invention, the organic material forming the coating is strongly required to have fast-curing property and processability in addition to properties common to general paints such as adhesion, weather resistance, corrosion resistance, gloss and surface hardness. Known, such as amino alkyd, polyester, organosol, blastisol (vinyl), epoxy, acrylic, silicone, polyvinylidene fluoride, acrylic emulsion, water-soluble acrylic, water-soluble polyester Can be used.
【００１６】また金属板としては、亜鉛めっき鋼板（熱
漬めっき、電気めっき）、冷延鋼板、アルミニウム板、
アルミニウムめっき鋼板、クロムめっき鋼板、ステンレ
ス鋼板、銅板等がある。As the metal plate, a galvanized steel plate (hot dipping plating, electroplating), a cold rolled steel plate, an aluminum plate,
Aluminum plated steel plate, chrome plated steel plate, stainless steel plate, copper plate, etc. are available.
【００１７】[0017]
【作用】上記の構成により、まず第１の発明において
は、角隅部における直角折曲部の外縁と内縁との曲率半
径の差が緩和されるため、曲げ加工に伴う前記部位の塑
性変形量が近似することとなり、しわ、亀裂の発生を防
止することができる。According to the first aspect of the invention, the difference in the radius of curvature between the outer edge and the inner edge of the right-angled bent portion at the corners is alleviated by the above-mentioned structure, so that the amount of plastic deformation of the above-mentioned portion due to bending is reduced. Are approximated to each other, and it is possible to prevent the generation of wrinkles and cracks.
【００１８】次に第２の発明においては、上記第１の発
明における作用に加えて、直角折曲部の内縁に存在する
平行部の曲げ加工に伴う座屈現象を防止し、併せて曲げ
加工後における正常な円筒面の形成を助長することがで
きる。Next, in the second aspect of the invention, in addition to the operation of the first aspect of the invention, the buckling phenomenon due to the bending of the parallel portion existing at the inner edge of the right-angled bent portion is prevented, and the bending is also performed. The formation of a normal cylindrical surface can be promoted later.
【００１９】更に第３の発明においては、比較的簡単な
構造の汎用の所謂薬研台状のダイを使用できると共に、
幅寸法の異なる筐体構成部材に対しても共通の曲げ加工
用金型を充当できるのである。またポンチおよび／また
はポンチとダイとの間に形成した挟持部によって直角折
曲部を係止させる構成であるため、被加工材である筐体
構成部材の非所望な移動を防止し、寸法精度および品質
の向上が可能となる。Further, according to the third aspect of the invention, a general-purpose so-called chemical-laboratory die having a relatively simple structure can be used, and
It is possible to apply the common bending die to the casing constituent members having different width dimensions. Further, since the right-angled bent portion is locked by the punch and / or the sandwiching portion formed between the punch and the die, it is possible to prevent undesired movement of the casing component member which is the workpiece, and to improve the dimensional accuracy. And the quality can be improved.
【００２０】[0020]
【実施例】図１は本発明の実施例を示す要部斜視図であ
り、同一部分は前記図１３と同一の参照符号で示す。図
１において、平行部８の端縁には折返部１０を設け、平
行部８の高さ寸法ｈとし、例えば塩化ビニル被覆鋼板か
らなる側板５の切口端縁が露出するのを防止する。１１
は不連続部であり、角隅部９の近傍の平行部８に設け
る。１２は打抜部であり、角隅部９およびその近傍の直
角折曲部７に設ける。従って角隅部９およびその近傍に
おける直角折曲部７の幅寸法ｗ1 は、他の部位の直角折
曲部７の幅寸法ｗよりも小に形成される。1 is a perspective view of an essential part showing an embodiment of the present invention, in which the same parts are designated by the same reference numerals as in FIG. In FIG. 1, a folded-back portion 10 is provided at the edge of the parallel portion 8 and has a height dimension h of the parallel portion 8 to prevent the cut edge of the side plate 5 made of, for example, a vinyl chloride-coated steel plate, from being exposed. 11
Is a discontinuous portion and is provided in the parallel portion 8 near the corner portion 9. Reference numeral 12 is a punching portion, which is provided in the corner portion 9 and the right-angled bending portion 7 in the vicinity thereof. Therefore, the width dimension w 1 of the right-angled bent portion 7 in the corner portion 9 and in the vicinity thereof is formed smaller than the width dimension w of the right-angled bent portion 7 in other portions.
【００２１】上記の構成により、例えば後述するような
曲げ加工用金型によって角隅部９を曲げ加工する場合に
おいて、角隅部９における直角折曲部７の外縁と内縁と
の曲率半径の差が緩和されるため、曲げ加工に伴う直角
折曲部７の内外縁の圧縮変形量が近似することとなり、
しわ、亀裂の発生を防止することができる。また鋼板の
表面に設けられた塩化ビニル被覆に対する応力の差も当
然に緩和されることとなり、しわ、剥離等の発生を防止
することができ、美麗な被覆を維持できるのである。With the above configuration, when the corner portion 9 is bent by a bending die as described later, for example, the difference in radius of curvature between the outer edge and the inner edge of the right-angled bent portion 7 at the corner portion 9 is formed. Is relaxed, the amount of compressive deformation of the inner and outer edges of the right-angled bent portion 7 due to bending is approximated,
It is possible to prevent the generation of wrinkles and cracks. Further, the difference in stress with respect to the vinyl chloride coating provided on the surface of the steel sheet is naturally alleviated, and it is possible to prevent the occurrence of wrinkles, peeling, etc. and maintain a beautiful coating.
【００２２】また平行部８に不連続部１１を設けたこと
により、直角折曲部７の内縁側に存在する平行部８の曲
げ加工に伴う座屈現象が防止されると共に、直角折曲部
７との非所望な干渉も防止される。従って曲げ加工に要
するエネルギーが少なく、かつ正常な円筒面の形成を助
長することができるのである。By providing the discontinuous portion 11 in the parallel portion 8, the buckling phenomenon due to the bending process of the parallel portion 8 existing on the inner edge side of the right-angled bent portion 7 is prevented and the right-angled bent portion is formed. Undesired interference with 7 is also prevented. Therefore, less energy is required for bending, and it is possible to promote the formation of a normal cylindrical surface.
【００２３】図２は図１における側板５の曲げ加工前の
素材の加工工程を示す要部説明図であり、（ａ）ないし
（ｄ）は夫々第１工程ないし第４工程における素材５ａ
の要部平面、（ｅ）ないし（ｈ）は夫々第１工程ないし
第４工程における素材５ａの要部端面を示し、左右の図
は夫々同一工程に対応した状態で示してある。なお同一
部分は前記図１と同一の参照符号で示す。FIG. 2 is an explanatory view of a main part showing a working process of the raw material before bending the side plate 5 in FIG. 1, and (a) to (d) respectively show the raw material 5a in the first to fourth processes.
Of the main parts, and (e) to (h) show the end faces of the main parts of the material 5a in the first to fourth steps, respectively, and the left and right drawings are shown corresponding to the same step, respectively. The same parts are designated by the same reference numerals as those in FIG.
【００２４】まず第１工程（ａ），（ｅ）においては、
素材５ａの端縁に全体として略Ｌ字状となる不連続部１
１および打抜部１２を打抜加工する。この場合におい
て、不連続部１１の幅寸法ｗ2 は、図１における直角折
曲部７の内外縁の曲率半径差および角隅部９の曲げ角度
（図１においては９０°）等を勘案して設定する。また
打抜部１２の長さ寸法Ｌは、素材５ａの機械的性質、角
隅部９（図１参照）の円筒面の円周方向長さおよび素材
５ａ上の被覆（図示せず）の柔軟性等を勘案して設定す
る。打抜部１２の幅寸法ｗ3 は、図１における直角折曲
部７の幅寸法の差（ｗ−ｗ1 ）に対応させて設定する。
なお不連続部１１の幅寸法ｗ2 は、図１のように曲げ加
工した場合に、不連続部１１の対縁部が当接するように
設定することが望ましい。First, in the first steps (a) and (e),
A discontinuous portion 1 that is substantially L-shaped as a whole at the edge of the material 5a
1 and the punching part 12 are punched. In this case, the width w 2 of the discontinuous portion 11 takes into consideration the difference in radius of curvature between the inner and outer edges of the right-angled bent portion 7 in FIG. 1, the bending angle of the corner portion 9 (90 ° in FIG. 1), and the like. To set. Further, the length dimension L of the punched portion 12 is determined by the mechanical properties of the material 5a, the circumferential length of the cylindrical surface of the corner portion 9 (see FIG. 1) and the flexibility of the coating (not shown) on the material 5a. Set in consideration of gender. The width dimension w 3 of the punched portion 12 is set in correspondence with the difference (w−w 1 ) in the width dimension of the right-angled bent portion 7 in FIG.
The width dimension w 2 of the discontinuous portion 11 is preferably set so that the opposite edge portion of the discontinuous portion 11 comes into contact when bent as shown in FIG.
【００２５】次に第２工程（ｂ），（ｆ）においては、
素材５ａの端縁に折返部１０を加工する。第３工程にお
いては、素材５ａの端縁を直角に折曲げる。この場合の
折曲げ幅の寸法ｗ4 は、図１に示す直角折曲部７の幅寸
法ｗと平行部８の高さ寸法ｈの和（ｗ＋ｈ）と対応させ
る。そして第４工程において素材５ａの端縁を直角に折
曲げて、直角折曲部７および平行部８を形成する。上記
のように成形した素材５ａにより、前記図１に示すよう
に角隅部９を形成し、側板５とする。Next, in the second steps (b) and (f),
The folded portion 10 is processed on the edge of the material 5a. In the third step, the edge of the material 5a is bent at a right angle. The dimension w 4 of the bending width in this case corresponds to the sum (w + h) of the width dimension w of the right-angled bending portion 7 and the height dimension h of the parallel portion 8 shown in FIG. Then, in a fourth step, the edge of the material 5a is bent at a right angle to form a right angle bent portion 7 and a parallel portion 8. As shown in FIG. 1, the corners 9 are formed from the material 5a molded as described above to form the side plate 5.
【００２６】図３は本発明の他の実施例を示す要部斜視
図であり、同一部分は前記図１と同一の参照符号で示
す。図３に示すものは、不連続部１１を角隅部９に設け
たものである。このような側板５を形成するには、図４
に示すような全体としてＴ字形状となる不連続部１１お
よび打抜部１２を設けた素材５ａを使用すればよい。な
お各部位の寸法関係は前記図２に示すものと同様であ
る。FIG. 3 is a perspective view of an essential part of another embodiment of the present invention, in which the same parts are designated by the same reference numerals as in FIG. As shown in FIG. 3, the discontinuous portion 11 is provided at the corner portion 9. To form such a side plate 5, FIG.
It is sufficient to use the material 5a provided with the discontinuous portion 11 and the punched portion 12 which are T-shaped as shown in FIG. The dimensional relationship of each part is the same as that shown in FIG.
【００２７】図５は本発明の更に他の実施例を示す要部
斜視図であり、前記図１および図３における平行部８を
欠如する場合の例である。なお図５に示すものは、前記
図１２における側板５の下端縁部に相当するものであ
る。図５において、角隅部９における直角折曲部７の幅
寸法ｗ1 を他の部位の直角折曲部７の幅寸法ｗより小に
形成したことにより、前記実施例と同様に曲げ加工を容
易かつ円滑に遂行することができる。FIG. 5 is a perspective view of an essential part showing still another embodiment of the present invention, which is an example when the parallel part 8 in FIGS. 1 and 3 is omitted. The one shown in FIG. 5 corresponds to the lower end edge of the side plate 5 in FIG. In FIG. 5, since the width dimension w 1 of the right-angled bent portion 7 in the corner portion 9 is formed to be smaller than the width dimension w of the right-angled bent portion 7 of the other portion, the bending process is performed in the same manner as in the above embodiment. It can be carried out easily and smoothly.
【００２８】図６は本発明の曲げ加工用金型を構成する
ポンチの例を示す説明図であり、（ａ）は正面、（ｂ）
は左側面を示す。図７は図１および図３における側板５
の曲げ加工状態を示す説明図であり、（ａ）は縦断面、
（ｂ）は左側面を示す。また図８は本発明の曲げ加工用
金型を構成するダイの例を示す説明図であり、（ａ）は
縦断面、（ｂ）は（ａ）におけるＢ−Ｂ線断面を示す。
なお図７において同一部分は前記図１および図３と同一
の参照符号にて示す。また図６ないし図８は夫々側板５
の曲げ加工状態を示すために上下を対応させて示してあ
る。FIG. 6 is an explanatory view showing an example of a punch which constitutes the bending die of the present invention, (a) is a front surface, and (b) is a drawing.
Indicates the left side surface. FIG. 7 shows the side plate 5 in FIGS. 1 and 3.
FIG. 6A is an explanatory view showing a bending state of FIG.
(B) shows the left side surface. Further, FIG. 8 is an explanatory view showing an example of a die constituting the bending die of the present invention, (a) shows a vertical section, and (b) shows a section taken along line BB in (a).
7 that are the same as those shown in FIGS. 1 and 3 are designated by the same reference numerals. 6 to 8 show side plates 5 respectively.
The upper and lower sides are shown in correspondence with each other in order to show the bending state.
【００２９】まず図６において、ポンチ２１は例えば工
具鋼により、先端部（下端部）２２の横断面輪郭を図７
に示す側板５の角隅部９の内側面の円筒面の曲率半径と
対応する曲率半径の円弧状に形成し、上端部に設けた取
付部２３を介して例えばプレスラム（図示せず）に取付
け、図８に示すダイと接離可能、例えば上下動可能に構
成する。２４は突起部であり、横断面輪郭を先端部２２
と同心であり、かつ図７に示す側板５の角隅部９におけ
る平行部８の内側面の円筒面の曲率半径と対応する曲率
半径の円弧状（円形であってもよい）にかつ長さ寸法ｈ
に形成し、ポンチ２１と一体に、若しくはねじ止め等に
よって固着する。なおポンチ２１の長さ寸法Ｌp は、図
７に示す側板５の直角折曲部７，７間の内側寸法Ｌs と
対応させて設定する。例えばＬp ＝Ｌs に形成する。First, in FIG. 6, the punch 21 is made of, for example, tool steel, and the cross-sectional contour of the tip portion (lower end portion) 22 is shown in FIG.
Is formed in an arc shape having a radius of curvature corresponding to the radius of curvature of the cylindrical surface of the inner surface of the corner portion 9 of the side plate 5 shown in FIG. 1, and is attached to, for example, a press ram (not shown) via the attachment portion 23 provided at the upper end portion. It is configured such that it can be brought into and out of contact with the die shown in FIG. 8, for example, can move up and down. Reference numeral 24 denotes a protrusion, the cross-sectional profile of which is the tip 22.
7 is concentric with the radius of curvature of the cylindrical surface of the inner surface of the parallel portion 8 in the corner portion 9 of the side plate 5 shown in FIG. Dimension h
And is fixed integrally with the punch 21 or by screwing or the like. The length dimension L p of the punch 21 is set in correspondence with the inner dimension L s between the right-angled bent portions 7, 7 of the side plate 5 shown in FIG. 7. For example, L p = L s is formed.
【００３０】次に図８において、ダイ２５は例えば工具
鋼により形成し、上端部に横断面輪郭の一部をＶ字状に
形成した凹部２６を設ける。なお凹部２６の開口角度
は、図７に示す側板５の角隅部９の曲げ加工角度と対応
させて設定する（図８においては９０°）が、側板５を
構成する金属板の機械的性質に起因するスプリングバッ
クを勘案して、部分的に逃げ面（図示せず）を設ける
か、前記曲げ加工角度より小に形成してもよい。Next, in FIG. 8, the die 25 is formed of, for example, tool steel, and a recess 26 having a V-shaped part of the cross-sectional contour is provided at the upper end. The opening angle of the recess 26 is set in correspondence with the bending angle of the corner portion 9 of the side plate 5 shown in FIG. 7 (90 ° in FIG. 8), but the mechanical properties of the metal plate forming the side plate 5 are set. In consideration of the spring back caused by the above, a flank (not shown) may be partially provided, or may be formed smaller than the bending angle.
【００３１】２７，２８は挟持部材であり、例えば工具
鋼によって形成し、ダイ２５の両側面にボルト２９を介
して固着する。挟持部材２７，２８の内側面間の距離、
若しくはダイ２５の長さ寸法Ｌd は、図７に示す側板５
の直角折曲部７，７の外側寸法と対応させて設定する。
すなわち直角折曲部７の金属板の厚さ寸法をｔとする
と、ダイ２５の長さ寸法Ｌd は（Ｌs ＋２ｔ）より僅か
に大に設定するのがよい。Numerals 27 and 28 are sandwiching members, which are made of, for example, tool steel and fixed to both side surfaces of the die 25 with bolts 29. The distance between the inner surfaces of the clamping members 27, 28,
Alternatively, the length dimension L d of the die 25 is the side plate 5 shown in FIG.
It is set in correspondence with the outer dimension of the right-angled bent portions 7, 7.
That is, assuming that the thickness dimension of the metal plate of the right-angled bent portion 7 is t, the length dimension L d of the die 25 is preferably set to be slightly larger than (L s + 2t).
【００３２】次に挟持部材２７には上方に開口するＶ字
状の凹部３０を形成する。この凹部３０の開口角度は、
前記凹部２６と同一とし、かつ凹部３０の長さ寸法Ｌ1
は、図７に示す側板５の平行部８の高さ寸法ｈと対応さ
せて設定する。なお凹部３０の底部の曲率半径は、側板
５の角隅部９における平行部８の外側の円筒面の曲率半
径と対応させて設定する。Next, the holding member 27 is formed with a V-shaped recess 30 that opens upward. The opening angle of the recess 30 is
The length dimension L 1 of the recess 30 is the same as that of the recess 26.
Is set in correspondence with the height dimension h of the parallel portion 8 of the side plate 5 shown in FIG. The radius of curvature of the bottom of the recess 30 is set in correspondence with the radius of curvature of the cylindrical surface outside the parallel portion 8 in the corner 9 of the side plate 5.
【００３３】上記の構成により、図８に示すダイ２５と
図６に示すポンチ２１との間に被加工材である側板５を
介装させてポンチ２１をダイ２５に当接させれば、側板
５に角隅部９を成形することができる。この場合、ポン
チ２１の両側面と挟持部材２７，２８の各内端面との間
に、側板５の直角折曲部７の金属板の肉厚寸法ｔに対応
する隙間寸法の挟持部が形成され、この挟持部に前記直
角折曲部７が係止される。従って側板５の曲げ加工時に
おける側板５とポンチ２１およびダイ２５との直角折曲
部７の厚さ方向の相対移動を防止することができ、寸法
精度および品質の向上が期待できる。With the above-described structure, if the side plate 5 which is the material to be processed is interposed between the die 25 shown in FIG. 8 and the punch 21 shown in FIG. The corners 9 can be molded into the corner 5. In this case, a sandwiching portion having a clearance dimension corresponding to the wall thickness dimension t of the metal plate of the right-angled bent portion 7 of the side plate 5 is formed between both side surfaces of the punch 21 and the inner end surfaces of the sandwiching members 27, 28. The right-angled bent portion 7 is locked to the holding portion. Therefore, it is possible to prevent relative movement in the thickness direction of the right-angled bent portion 7 between the side plate 5 and the punch 21 and the die 25 during bending of the side plate 5, and improvement in dimensional accuracy and quality can be expected.
【００３４】そして側板５の角隅部９の円筒面は、ポン
チ２１の先端部２２とダイ２５の凹部２６により、平行
部８の円筒面はポンチ２１の突起部２４と挟持部材２７
の凹部３０により、各々容易かつ精度よく成形され得る
のである。The cylindrical surface of the corner 9 of the side plate 5 is formed by the tip 22 of the punch 21 and the recess 26 of the die 25, and the cylindrical surface of the parallel portion 8 is formed by the projection 24 of the punch 21 and the holding member 27.
Each of the concave portions 30 allows easy and accurate molding.
【００３５】図９は本発明の曲げ加工用金型を構成する
ポンチの他の例を示す説明図であり、（ａ）は正面、
（ｂ）は左側面を示し、同一部分は前記図６と同一の参
照符号で示す。図９において、３１は突起部材であり、
ポンチ２１の一方の側面にボルト３２を介して一体に固
着される。突起部材３１の厚さ寸法は、前記図１および
図３に示す平行部８の高さ寸法ｈと同一寸法に形成す
る。FIG. 9 is an explanatory view showing another example of the punch forming the bending die of the present invention, (a) is a front view,
6B shows the left side surface, and the same portions are denoted by the same reference numerals as those in FIG. In FIG. 9, 31 is a protruding member,
It is integrally fixed to one side surface of the punch 21 via a bolt 32. The thickness dimension of the protruding member 31 is formed to be the same as the height dimension h of the parallel portion 8 shown in FIGS. 1 and 3.
【００３６】３３は挟持部であり、突起部材３１を固着
したポンチ２１の端面からＬp の距離に、隙間寸法若し
くは幅寸法ｔに、かつポンチ２１の移動方向に沿って設
ける。この挟持部３３の深さ寸法ｄは、直角折曲部７
（図１および図３参照）の幅寸法ｗから金属板の厚さ寸
法ｔを減じた寸法若しくはそれより若干大に形成するの
がよい。なお突起部材３１の先端部（下端部）の曲率半
径は、前記図６に示す突起部２４と同様に形成する。Reference numeral 33 denotes a sandwiching portion, which is provided at a distance of L p from the end surface of the punch 21 to which the protruding member 31 is fixed, a clearance dimension or a width dimension t, and along the moving direction of the punch 21. The depth dimension d of the sandwiching portion 33 is equal to the right-angled bending portion 7
It is preferable that the width dimension w (see FIGS. 1 and 3) is subtracted from the thickness t of the metal plate or a size slightly larger than that. The radius of curvature of the tip portion (lower end portion) of the protruding member 31 is formed similarly to the protruding portion 24 shown in FIG.
【００３７】上記の構成により、前記図８に示す構成の
ダイ２５（但し挟持部材２８を欠如した構成のもの）と
組合せれば、前記と同様にして図７に示す側板５の曲げ
加工を行なうことができる。この場合、図７（ａ）に示
す側板５の右側の直角折曲部７は、図９（ａ）に示すポ
ンチ２１に設けた挟持部３３によって係止されるから、
曲げ加工時における側板５の相対移動を防止することが
できる。ポンチ２１にＬp 寸法の異なる複数個の挟持部
３３を設けておけば、Ｌs 寸法（図７（ａ）参照）の異
なる複数種類の側板５に対しても、同一の曲げ加工用金
型を共用することができる。If the die 25 having the structure shown in FIG. 8 is combined with the die having the structure shown in FIG. 8 (however, the sandwiching member 28 is omitted), the side plate 5 shown in FIG. 7 is bent in the same manner as described above. be able to. In this case, since the right-angled bent portion 7 on the right side of the side plate 5 shown in FIG. 7A is locked by the holding portion 33 provided on the punch 21 shown in FIG. 9A,
It is possible to prevent relative movement of the side plate 5 during bending. If the punch 21 is provided with a plurality of holding portions 33 having different L p dimensions, the same bending mold can be used for a plurality of types of side plates 5 having different L s dimensions (see FIG. 7A). Can be shared.
【００３８】図１０は本発明の曲げ加工用金型を構成す
るポンチの更に他の例を示す説明図であり、（ａ）は正
面、（ｂ）は左側面を示し、同一部分は前記図９と同一
の参照符号で示す。図１０において、挟持部３３は、ポ
ンチ２１にＬp 寸法の間隔で２個設ける。このポンチ２
１に対応させるダイは、図８において左右の挟持部材２
７，２８を欠如する構成のものであり、前記図１２に示
す側板５の上下端縁に直角折曲部７のみを設けた構成の
ものの曲げ加工用のものである。そして側板５に対する
曲げ加工の態様は、前記図６ないし図９に示すものと同
様である。FIG. 10 is an explanatory view showing still another example of the punch forming the bending die of the present invention. (A) shows the front surface, (b) shows the left side surface, and the same parts are the same as the above-mentioned drawings. It is designated by the same reference numeral as 9. In FIG. 10, two sandwiching portions 33 are provided on the punch 21 at an interval of L p dimension. This punch 2
The die corresponding to 1 is a holding member 2 on the left and right in FIG.
No. 7, 28 is omitted, and is for bending of the structure shown in FIG. 12 in which only the right-angled bent portion 7 is provided at the upper and lower edges of the side plate 5. The mode of bending the side plate 5 is the same as that shown in FIGS. 6 to 9.
【００３９】本実施例においては、ＯＣＲ装置を構成す
る固定ユニットの側板およびその曲げ加工用金型につい
て記述したが、側板以外の筐体構成部材およびＯＣＲ装
置以外のものについても本発明の適用が可能である。ま
た曲げ加工角度が９０°の場合について記述したが、９
０°以外の曲げ加工についても本発明の曲げ加工用金型
を当然に適用可能である。要するに平坦部の少なくとも
一方の端縁に沿って一体の直角折曲部を有し、この直角
折曲部を含む平面内において所定角度直角折曲部側に折
曲げる構成の筐体構成部材およびその曲げ加工用金型に
適用できる。In this embodiment, the side plate of the fixed unit constituting the OCR device and the bending die thereof have been described, but the present invention can be applied to the casing constituent members other than the side plate and those other than the OCR device. It is possible. Also, the description was given for the case where the bending angle is 90 °.
The bending die of the present invention can naturally be applied to bending processes other than 0 °. In short, a casing component having an integral right-angled bent portion along at least one edge of the flat portion and bent to a right-angled bent portion side at a predetermined angle in a plane including the right-angled bent portion, and the same. It can be applied to bending dies.
【００４０】[0040]
【発明の効果】本発明は以上記述のような構成および作
用であるから、下記の効果を奏することができる。EFFECTS OF THE INVENTION Since the present invention has the structure and operation as described above, the following effects can be obtained.
【００４１】(1) 有機質材料からなる被覆を有する金属
板により円筒面状の角隅部を設けた筐体部材を容易かつ
高精度で製作できる。 (2) 角隅部にしわ、亀裂または被覆の剥離を発生するこ
となく、美麗な仕上面を得ることができる。(1) It is possible to easily and highly accurately manufacture a housing member having a cylindrical corner portion by using a metal plate having a coating made of an organic material. (2) A beautiful finished surface can be obtained without generating wrinkles, cracks or peeling of the coating at the corners.
【００４２】(3) 有機質材料からなる被覆を有する金属
板を直接加工するため、材料費が若干高価であるが、塗
装作業が不要であるため、全体の製作コストを低減する
ことができる。(3) Although the metal plate having a coating made of an organic material is directly processed, the material cost is a little high, but the painting work is not required, so that the total manufacturing cost can be reduced.
【００４３】(4) 絞り専用金型を使用することなく、汎
用的な金型の使用により複雑な形状の角隅部の曲げ加工
が可能であり、金型費を大幅に低減することができる。 (5) 汎用型かつ共用型であるため、筐体構成部材の寸法
形状が若干変更された場合においても、金型の一部変更
によって対応することができ、多種少量生産、短納期生
産が可能である。(4) It is possible to bend the corners of a complicated shape by using a general-purpose die without using a die for exclusive use of drawing, and it is possible to greatly reduce the die cost. . (5) Since it is a general-purpose type and common type, even if the dimensions and shapes of the housing components are slightly changed, it is possible to respond by partially changing the mold, enabling a wide variety of small-quantity production and quick delivery. Is.
【図１】本発明の実施例を示す要部斜視図である。FIG. 1 is a perspective view of an essential part showing an embodiment of the present invention.
【図２】図１における側板５の曲げ加工前の素材の加工
工程を示す要部説明図であり、（ａ）ないし（ｄ）は夫
々第１工程ないし第４工程における素材５ａの要部平
面、（ｅ）ないし（ｈ）は夫々第１工程ないし第４工程
における素材５ａの要部端面を示す。FIG. 2 is an explanatory view of a main part showing a processing step of the material before bending the side plate 5 in FIG. 1, and FIGS. 2 (a) to (d) are plan views of a main part of the material 5a in the first to fourth steps, respectively. , (E) to (h) show end faces of main parts of the material 5a in the first to fourth steps, respectively.
【図３】本発明の他の実施例を示す要部斜視図である。FIG. 3 is a perspective view of an essential part showing another embodiment of the present invention.
【図４】図３における側板５の曲げ加工前の素材を示す
要部平面図である。4 is a plan view of relevant parts showing a material of the side plate 5 in FIG. 3 before bending.
【図５】本発明の更に他の実施例を示す要部斜視図であ
る。FIG. 5 is a perspective view of an essential part showing still another embodiment of the present invention.
【図６】本発明の曲げ加工用金型を構成するポンチの例
を示す説明図であり、（ａ）は正面、（ｂ）は左側面を
示す。6 (a) and 6 (b) are explanatory views showing an example of a punch forming the bending mold of the present invention, in which (a) shows a front surface and (b) shows a left side surface.
【図７】図１および図３における側板５の曲げ加工状態
を示す説明図であり、（ａ）は縦断面、（ｂ）は左側面
を示す。FIG. 7 is an explanatory view showing a bending state of the side plate 5 in FIGS. 1 and 3, (a) showing a vertical section and (b) showing a left side surface.
【図８】本発明の曲げ加工用金型を構成するダイの例を
示す説明図であり、（ａ）は縦断面、（ｂ）は（ａ）に
おけるＢ−Ｂ線断面を示す。8A and 8B are explanatory views showing an example of a die that constitutes the bending die of the present invention, in which FIG. 8A is a vertical section and FIG. 8B is a section taken along line BB in FIG. 8A.
【図９】本発明の曲げ加工用金型を構成するポンチの他
の例を示す説明図であり、（ａ）は正面、（ｂ）は左側
面を示す。9A and 9B are explanatory views showing another example of a punch forming the bending die of the present invention, in which FIG. 9A is a front surface and FIG. 9B is a left side surface.
【図１０】本発明の曲げ加工用金型を構成するポンチの
更に他の例を示す説明図であり、（ａ）は正面、（ｂ）
は左側面を示す。FIG. 10 is an explanatory view showing still another example of the punch forming the bending die of the present invention, where (a) is a front surface and (b) is a front view.
Indicates the left side surface.
【図１１】ＯＣＲ装置の例を示す要部斜視図である。FIG. 11 is a perspective view of an essential part showing an example of an OCR device.
【図１２】図１１における側板５を示す要部斜視図であ
る。12 is a perspective view of an essential part showing a side plate 5 in FIG.
【図１３】図１２におけるＡ部拡大斜視図である。13 is an enlarged perspective view of a portion A in FIG.
５ 側板 ７ 直角折曲部 ８ 平行部 ９ 角隅部 １１ 不連続部 ２１ ポンチ ２５ ダイ ３３ 挟持部 5 Side plate 7 Right angle bent part 8 Parallel part 9 Corner part 11 Discontinuous part 21 Punch 25 Die 33 Clamping part
Claims (3)
からなり、平坦部の少なくとも一方の端縁に沿って幅寸
法ｗなる一体の直角折曲部を形成し、この直角折曲部を
含む平面内において所定角度直角折曲部側に折曲げ、か
つ円筒面状の角隅部を設けてなる筐体構成部材におい
て、 少なくとも角隅部の直角折曲部の幅寸法ｗ1 をｗ1 ＜ｗ
に形成したことを特徴とする筐体構成部材。1. A flat plate comprising a metal plate having a coating made of an organic material, forming an integral right-angled bent portion having a width dimension w along at least one edge of the flat portion, and including the right-angled bent portion. In a case-constituting member which is bent to the side of a right-angled bent portion at a predetermined angle and provided with a cylindrical corner portion, at least the width dimension w 1 of the right-angled bent portion of the corner portion is set to w 1 <w
A casing constituent member characterized by being formed in.
からなり、平坦部の少なくとも一方の端縁に沿って幅寸
法ｗなる一体の直角折曲部およびこの直角折曲部から前
記平坦部と平行に外方に延びる一体の平行部を形成し、
前記直角折曲部を含む平面内において所定角度直角折曲
部側に折曲げ、かつ円筒面状の角隅部を設けてなる筐体
構成部材において、 少なくとも角隅部の直角折曲部の幅寸法ｗ1 をｗ1 ＜ｗ
に形成すると共に、角隅部若しくはその近傍の平行部に
不連続部を形成したことを特徴とする筐体構成部材。2. An integral right-angled bent portion having a width dimension w along at least one edge of the flat portion and a parallel plate from the right-angled bent portion to the flat portion, the metal plate having a coating made of an organic material. To form an integral parallel part that extends outward,
In a housing component formed by bending a right angle bent portion side at a predetermined angle in a plane including the right angle bent portion and providing a cylindrical corner portion, at least the width of the right angle bent portion of the corner portion. Dimension w 1 to w 1 <w
And a discontinuous portion is formed at a corner portion or a parallel portion in the vicinity thereof.
からなり、平坦部の少なくとも一方の端縁に沿って幅寸
法ｗなる一体の直角折曲部を形成し、この直角折曲部を
含む平面内において所定角度直角折曲部側に折曲げ、か
つ円筒面状の角隅部を設けてなる筐体構成部材の曲げ加
工用金型において、 横断面輪郭の一部をＶ字状に形成した凹部を有するダイ
と、先端部の横断面輪郭を円弧状に形成しかつ前記ダイ
と接離可能に形成したポンチとによって構成すると共
に、前記ポンチおよび／または前記ポンチの端面と前記
ダイの端面との間に前記直角折曲部の金属板の厚さ寸法
より僅かに大なる隙間寸法に形成した挟持部を前記ポン
チの移動方向に沿って設け、この挟持部に前記直角折曲
部を係止させることにより曲げ加工時における前記筐体
構成部材と前記ポンチおよびダイとの前記直角折曲部の
厚さ方向の相対移動を拘束するように構成したことを特
徴とする筐体構成部材の曲げ加工用金型。3. A flat plate including a right-angled bent portion having a width dimension w formed along at least one edge of the flat portion, the flat plate including a metal plate having a coating made of an organic material. In a metal mold for bending a casing constituting member, which is bent at a right-angled bent portion side at a predetermined angle and provided with a cylindrical corner portion, a part of the cross-sectional contour is formed in a V shape. The punch and / or the end face of the punch and the end face of the die are formed by a die having a concave portion and a punch having a cross-sectional contour of a tip portion formed in an arc shape and capable of coming into contact with and separating from the die. A sandwiching portion formed with a clearance dimension slightly larger than the thickness dimension of the metal plate of the right-angled bent portion is provided along the moving direction of the punch, and the right-angled bent portion is locked to the sandwiched portion. By causing the housing to be bent Forming member and the punch and the bending die housing structure member, characterized by being configured so as to restrain the relative movement thickness direction of the right-angled bent portions of the die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25821193A JP2815294B2 (en) | 1993-10-15 | 1993-10-15 | Housing constituent member and mold for bending the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25821193A JP2815294B2 (en) | 1993-10-15 | 1993-10-15 | Housing constituent member and mold for bending the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07112213A true JPH07112213A (en) | 1995-05-02 |
| JP2815294B2 JP2815294B2 (en) | 1998-10-27 |
Family
ID=17317067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25821193A Expired - Fee Related JP2815294B2 (en) | 1993-10-15 | 1993-10-15 | Housing constituent member and mold for bending the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2815294B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100898239B1 (en) * | 2007-10-22 | 2009-05-18 | 이일순 | Method for manufacturing metal box using bending machine |
| US7791840B2 (en) | 2006-02-21 | 2010-09-07 | Nhk Spring Co., Ltd. | Head suspension, load beam, and method of manufacturing load beam |
| CN109604438A (en) * | 2018-12-24 | 2019-04-12 | 安徽中佳自动化科技有限公司 | A kind of production technology of Combined machining kitchen cabinet abnormal shape door-plate |
| CN113231511A (en) * | 2021-06-03 | 2021-08-10 | 四川航天长征装备制造有限公司 | Rapid forming method for manual outer pulling edges at four corners of box-shaped sheet metal part |
-
1993
- 1993-10-15 JP JP25821193A patent/JP2815294B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7791840B2 (en) | 2006-02-21 | 2010-09-07 | Nhk Spring Co., Ltd. | Head suspension, load beam, and method of manufacturing load beam |
| KR100898239B1 (en) * | 2007-10-22 | 2009-05-18 | 이일순 | Method for manufacturing metal box using bending machine |
| CN109604438A (en) * | 2018-12-24 | 2019-04-12 | 安徽中佳自动化科技有限公司 | A kind of production technology of Combined machining kitchen cabinet abnormal shape door-plate |
| CN113231511A (en) * | 2021-06-03 | 2021-08-10 | 四川航天长征装备制造有限公司 | Rapid forming method for manual outer pulling edges at four corners of box-shaped sheet metal part |
| CN113231511B (en) * | 2021-06-03 | 2023-03-28 | 四川航天长征装备制造有限公司 | Rapid forming method for manual outer pulling edges at four corners of box-shaped sheet metal part |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2815294B2 (en) | 1998-10-27 |
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