JP2004327580A - Frame made from sheet metal - Google Patents

Frame made from sheet metal Download PDF

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Publication number
JP2004327580A
JP2004327580A JP2003118100A JP2003118100A JP2004327580A JP 2004327580 A JP2004327580 A JP 2004327580A JP 2003118100 A JP2003118100 A JP 2003118100A JP 2003118100 A JP2003118100 A JP 2003118100A JP 2004327580 A JP2004327580 A JP 2004327580A
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Japan
Prior art keywords
plate portion
bent
piece
bending
plate
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JP2003118100A
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Japanese (ja)
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Manabu Suzuki
学 鈴木
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Sony Corp
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Sony Corp
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Priority to JP2003118100A priority Critical patent/JP2004327580A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a frame made from sheet metal which attached in side board and is equipped with strip without reducing strength. <P>SOLUTION: The frame 18 made from sheet metal is provided with a bottom plate 20, side plates 22 which stand up from both sides of the bottom plate 20, and a plurality of adaptor plates 24 arranged over the bottom plate 20 and the side plates 22. The adaptor plates 24 are constituted of installation strip 2402 wherein a part of the side plates 22 is bent almost by right-angle from the side plate 22 and extends parallel with the bottom plate 20, a leg segment 2404 wherein a part of the base plate 20 is bent almost by right-angle from the base plate 20 and extends almost parallel with the side plate 22, and piece portions 2406 of crookedness which connect tip of installation strip 2402 and a tip of the leg segment 2404. An attachment hole 2410 is formed in the installation strip 2402. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は金属製の薄板からなる板金製フレームとその製造方法に関する。
【０００２】
【従来の技術】
金属製の薄板からなる板金製フレームは種々の機器や装置に用いられており、板金製フレームは、例えば、メカ構造体やこのメカ構造体を制御する制御部を支持するため電子機器の筐体の底部に組み込まれている。
この種の板金製フレームは、筐体の底部を閉塞する底板と、底板の両側から起立する側板とを備え、側板には、メカ構造体や制御部を取り付けて支持するための取り付け片が複数設けられている。
【０００３】
このような取り付け片は、従来、図７（Ａ）に示すように、取り付け片８０の輪郭に対応させて３つの切れ目８２を側板８４に形成しておき、取り付け片８０を折り曲げる方法（例えば、特許文献１）と、図７（Ｂ）に示すように、絞り加工により取り付け座８６を底板８８に形成し、この取り付け座８６の上面を取り付け片９０とする方法が用いられており、図７（Ａ）、（Ｂ）において符号９２は取り付け孔を示している。
【０００４】
【特許文献１】
特開昭６０−２４２５０３号公報
【０００５】
【発明が解決しようとする課題】
しかしながら、図７（Ａ）の取り付け片８０では、取り付け片８０を折り曲げると、３つの切れ目８２により取り付け片８０に対応した大きさの欠部８０Ａが側板８４に形成され、したがって、取り付け片８０の数に対応した複数の欠部８０Ａがフレームに形成されてしまい、フレームの強度が低下してしまう不具合があった。
また、図７（Ｂ）に示す取り付け片９０では、側板８４の近接して取り付け片９０を設けるためには、絞り加工の関係上、側板８４と底板８８との境の部分に、取り付け座８６の全長にわたる長さのスリット９４を延在形成しなければならず、したがって、取り付け片８０の数に対応した複数のスリット９４がフレームに形成されてしまい、フレームの強度が低下してしまう不具合があった。
本発明は前記事情に鑑み案出されたものであって、本発明の目的は、強度を低下させることなく側板に取り付け片を備えた板金製フレームとその製造方法を提供することにある。
【０００６】
【課題を解決するための手段】
前記目的を達成するため、本発明の板金製フレームは、第１板部と、前記第１板部から折り曲げられた第２板部と、前記第１板部と第２板部とにわたって設けられた取り付け板部とを備え、前記取り付け板部は、前記第２板部の部分が該第２板部から折り曲げられ前記第１板部と平行して延在する取り付け片部と、前記第１板部から該第１板部の部分が折り曲げられ前記第２板部と平行して延在する脚片部と、前記取り付け片部の先端と脚片部の先端を連結する屈曲片部で構成されていることを特徴とする。
そのため、本発明の板金製フレームによれば、欠部やスリットによりフレームの強度を低下させずに取り付け片部を設けることができ、また、曲げ加工により簡単にしかも確実に製造することができる。
また、本発明は、第１板部と、前記第１板部から第１折り曲げ線を境に折り曲げられた第２板部と、前記第１板部と第２板部とにわたって設けられた取り付け板部とを備え、前記取り付け板部は、前記第２板部の部分が該第２板部から前記第１折り曲げ線と平行する第２折り曲げ線を境に折り曲げられ前記第１板部と平行して延在する取り付け片部と、前記第１板部の部分が該第１板部から前記第１折り曲げ線と平行する第３折り曲げ線を境に折り曲げられ前記第２板部と平行して延在して延在する脚片部と、前記取り付け片部の先端と脚片部の先端とが前記第１折り曲げ線と平行する第４折り曲げ線を境に折り曲げられて連結される屈曲片部で構成された板金製フレームの製造方法であって、平坦な金属製の薄板に、形成すべき前記取り付け板部の前記第１折り曲げ線の延在方向の両端に位置し該取り付け板部に沿って前記第１折り曲げ線と直交する方向に延在するスリットをそれぞれ形成し、金型を用いて前記第１折り曲げ線を境に前記第１板部から第２板部を折り曲げると共に、この折り曲げと同時に、前記第２折り曲げ線を境とした前記第２板部からの前記取り付け片部の折り曲げと、前記第３折り曲げ線を境とした前記第１板部からの前記脚片部の折り曲げと、前記第４折り曲げ線を境とした前記屈曲片部の折り曲げを行なうようにしたことを特徴とする。
そのため、本発明の製造方法によれば、第１板部に取り付け板部が設けられた板金製フレームを、簡単にしかも確実に製造することができる。
【０００７】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて説明する。
図１は本発明の板金製フレームを備えた光ディスク装置の斜視図、図２は板金製フレームの斜視図、図３（Ａ）は板金製フレームの平面図、（Ｂ）は板金製フレームの側面図、（Ｃ）は（Ａ）のＣＣ断面図を示す。
図１に示すように、光ディスク装置１２は、矩形箱状の筐体１４を有し、筐体１４の前面の開口１４０２からトレイ１６が出没し、トレイ１６の没入位置においてトレイ１６に載置された光ディスクが回転駆動され、光ピックアップによって情報の記録や再生が行なわれるように構成されている。
このような筐体１４の底部に板金製フレーム１８が配設され、板金製フレーム１８は鋼やアルミ合金などの金属製の薄板が曲げ加工されることで形成されている。
板金製フレーム１８は、図２、図３に示すように、筐体１４の底面を閉塞する底板部２０（特許請求の範囲の第１板部に相当）と、底板部２０の左右両側からほぼ直角に折り曲げられ起立する側板部２２（特許請求の範囲の第２板部に相当）と、底板部２０と側板部２２とにわたって設けられた複数の取り付け板部２４とを備え、トレイ１６や光ディスク、光ピックアップなどを駆動するメカ構造部の一部や、このメカ構造部を制御し情報の記録や再生を行なう制御部の一部がこれら取り付け板部２４を介して配設されている。
【０００８】
取り付け板部２４は、側板部２２の部分が側板部２２からほぼ直角に折り曲げられて底板部２０と平行して延在する取り付け片部２４０２と、底板部２０の部分が底板部２０からほぼ直角に折り曲げられ側板部２２と平行して延在する脚片部２４０４と、取り付け片部２４０２の先端と脚片部２４０４の先端を連結する屈曲片部２４０６とで構成されている。
取り付け片部２４０２は、側板部２２に沿って延在する幅Ｗと、側板部２２から離れる方向に沿って延在する長さＮ１とを有している。
脚片部２４０４は、底板部２０に沿って延在する幅Ｗと、底板部２０から離れる方向に沿って延在する長さＮ２とを有している。
屈曲片部２４０６は、底板部２０および側板部２２に沿って延在する幅Ｗを有している。
これら取り付け片部２４０２、脚片部２４０４、屈曲片部２４０６の幅Ｗは、図３（Ａ）に示すように、均一の寸法で形成されている。
なお、底板部２０と側板部２２には、取り付け板部２４に対応した大きさの欠部２４Ａが形成されている。
【０００９】
本実施の形態では、底板部２０と側板部２２とは、互いにほぼ直角をなす平面上を延在し、取り付け片部２４０２は、側板部２２に対してほぼ直角をなす平面上を延在し、脚片部２４０４は、底板部２０に対してほぼ直角をなす平面上を延在している。
取り付け片部２４０２には取り付け孔（ねじ挿通孔やねじ孔など）２４１０が設けられている。なお、図面では省略されているが、底板部２０や側板部２２には、取り付け孔２４１０以外の様々な取り付け孔や取り付け座などが設けられている。
【００１０】
次に、板金製フレーム１８の製造方法について説明する。
図４に示すように、平面視矩形状の平坦な金属製の薄板３０を用意する。なお、この薄板３０は、両側の第１折り曲げ線Ｌ１を境に折り曲げられ、底板部２０と、この底板部２０の両側から起立する側板部２２が得られるものである。
まず、形成すべく取り付け板部２４の両側の薄板３０箇所にスリットＳ１をそれぞれ形成する。より詳細には、形成すべく取り付け板部２４の第１折り曲げ線Ｌ１の延在方向の両端に位置し取り付け板部２４に沿って第１折り曲げ線Ｌ１と直交する方向に延在するスリットＳ１をそれぞれ形成する。
また、取り付け片部２４０２に対応する薄板３０箇所に取り付け孔２４１０を形成する。
【００１１】
次に、図４、図５に示すように、１回目のプレス加工により第１の金型を用いて、第１折り曲げ線Ｌ１を境に底板部２０から両側の側板部２２をほぼ４５度折り曲げると共に、この折り曲げと同時に、第２折り曲げ線Ｌ２を境とした側板部２２からの取り付け片部２４０２のほぼ４５度の折り曲げと、第３折り曲げ線Ｌ３を境とした底板部２０からの脚片部２４０４のほぼ４５度の折り曲げと、第４折り曲げ線Ｌ４を境とした屈曲片部２４０６のほぼ１３５度の折り曲げを行なう。
なお、第１乃至第４折り曲げ線Ｌ１〜Ｌ４は、設計上あるいは加工上必要とされる図面上での線であり、これら第１乃至第４折り曲げ線Ｌ１〜Ｌ４は全て平行している。
次に、２回目のプレス加工により第２の金型を用いて、第１折り曲げ線Ｌ１を境に底板部２０から両側の側板部２２をさらにほぼ４５度折り曲げると共に、この折り曲げと同時に、第２折り曲げ線Ｌ２を境とした側板部２２からの取り付け片部２４０２のさらなるほぼ４５度の折り曲げと、第３折り曲げ線Ｌ３を境とした底板部２０からの脚片部２４０４のさらなるほぼ４５度の折り曲げと、第４折り曲げ線Ｌ４を境とした屈曲片部２４０６のさらなる４５度の折り曲げを行なう。
【００１２】
このような製造工程により図２、図３に示す板金製フレーム１８が得られる。
なお、底板部２０と側板部２２との折り曲げ方向と、屈曲片部２４０６の折り曲げ方向が逆向きであり、かつ、底板部２０と側板部２２とのなす角度および屈曲片部２４０６がなす角度が共に９０度であることから、２回に分けて曲げ加工を行なっている。より詳細には、底板部２０と側板部２２との折り曲げ方向と、屈曲片部２４０６の折り曲げ方向が逆向きである場合、１回の曲げ加工において、４５度程度の曲げを行なうことが曲げ加工上および金型製作上好ましく、このように４５度ずつ２回に分けて曲げ加工を行なうことにより板金製フレーム１８を簡単にしかも確実に製造することができる。
したがって、例えば、底板部２０と側板部２２とのなす角度および屈曲片部２４０６がなす角度が共に４５度以下の板金製フレーム１８の場合には、１回の曲げ加工で製造されることになる。
【００１３】
実施の形態に係る板金製フレーム１８は、取り付け片部２４０２が側板部２２に設けられており、底板部２０と側板部２２には、取り付け板部２４に対応した大きさの欠部２４Ａが形成されるものの、取り付け片部２４０２、脚片部２４０４、屈曲片部２４０６からなる取り付け板部２４により欠部２４Ａの両側が連結された構造となるため、従来の図７（Ａ）、（Ｂ）に示す板金製フレームのように、欠部やスリットによりフレームの強度を低下させずに取り付け片部２４０２を設けることができる。また、曲げ加工により簡単にしかも確実に製造することができる。
また、実施の形態に係る板金製フレーム１８の製造方法によれば、取り付け板部２４を有する板金製フレーム１８を、簡単にしかも確実に製造することができる。
【００１４】
なお、図６に示すように、屈曲片部２４０６に（より詳細には、第４折り曲げ線Ｌ４上に）、幅Ｗ方向に沿って延在するスリットＳ１１を設けると、あるいは、取り付け片部２４０２が側板部２２から折り曲げられる基部２４０２Ａ（より詳細には、第２折り曲げ線Ｌ２上）、または、脚片部２４０４が底板部２０から折り曲げられる基部２４０４Ａ（より詳細には、第３折り曲げ線Ｌ３上）の一方に幅Ｗ方向に沿って延在するスリットＳ１２を設けると、取り付け片部２４０２や脚片部２４０４の寸法精度を高める上で有利となる。
また、実施の形態では、第１板部（底板部２０）の両側に第２板部（側板部２２）が形成されている場合について説明したが、第１板部の片側のみに第２板部が形成されている場合にも本発明は無論適用され、取り付け板部の個数は１つであってもよく、あるいは複数でもよい。
また、実施の形態では、本発明を光ディスク装置の板金製フレームに適用した場合について説明したが、その他の機器や装置に本発明の板金製フレームは広く適用されるものである。
【００１５】
【発明の効果】
以上説明したように本発明によれば、強度を低下させることなく側板に取り付け片を備えた板金製フレームが得られる。
【図面の簡単な説明】
【図１】本発明の板金製フレームを備えた光ディスク装置の斜視図である。
【図２】板金製フレームの斜視図である。
【図３】（Ａ）は板金製フレームの平面図、（Ｂ）は板金製フレームの側面図、（Ｃ）は（Ａ）のＣＣ断面図である。
【図４】金属製の薄板の平面図である。
【図５】板金製フレームの製造工程の説明図である。
【図６】板金製フレームの変形例の斜視図である。
【図７】（Ａ）、（Ｂ）はそれぞれ取り付け片を備える従来の板金製フレームの斜視図である。
【符号の説明】
１８……板金製フレーム、２０……底板部、２２……側板部、２４……取り付け板部、２４０２……取り付け片部、２４０４……脚片部、２４０６……屈曲片部。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a sheet metal frame made of a thin metal plate and a method for manufacturing the same.
[0002]
[Prior art]
BACKGROUND ART A sheet metal frame made of a thin metal plate is used for various devices and apparatuses. The sheet metal frame is, for example, a housing of an electronic device for supporting a mechanical structure and a control unit that controls the mechanical structure. Built into the bottom of the.
This type of sheet metal frame includes a bottom plate that closes the bottom of the housing, and side plates that stand up from both sides of the bottom plate. The side plate has a plurality of mounting pieces for mounting and supporting a mechanical structure and a control unit. Is provided.
[0003]
Conventionally, as shown in FIG. 7A, such a mounting piece is formed by forming three cuts 82 in the side plate 84 in correspondence with the contour of the mounting piece 80 and bending the mounting piece 80 (for example, As shown in Patent Document 1) and FIG. 7B, a method is used in which a mounting seat 86 is formed on a bottom plate 88 by drawing and the upper surface of the mounting seat 86 is used as a mounting piece 90. In (A) and (B), reference numeral 92 indicates a mounting hole.
[0004]
[Patent Document 1]
JP-A-60-242503
[Problems to be solved by the invention]
However, in the mounting piece 80 of FIG. 7A, when the mounting piece 80 is bent, a cutout 80A having a size corresponding to the mounting piece 80 is formed by the three cuts 82 in the side plate 84. A plurality of notches 80A corresponding to the number are formed on the frame, and the strength of the frame is reduced.
In addition, in the mounting piece 90 shown in FIG. 7B, in order to provide the mounting piece 90 near the side plate 84, the mounting seat 86 is provided at the boundary between the side plate 84 and the bottom plate 88 due to the drawing process. Must be formed so as to extend over the entire length of the frame. Therefore, a plurality of slits 94 corresponding to the number of mounting pieces 80 are formed in the frame, and the strength of the frame is reduced. there were.
The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide a sheet metal frame having a mounting piece on a side plate without reducing strength, and a method for manufacturing the same.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the sheet metal frame of the present invention is provided over a first plate portion, a second plate portion bent from the first plate portion, and the first plate portion and the second plate portion. A mounting plate portion, wherein the mounting plate portion is formed by bending a portion of the second plate portion from the second plate portion and extending in parallel with the first plate portion; The first plate portion is bent from the plate portion and includes a leg portion extending parallel to the second plate portion, and a bent piece portion connecting a tip of the mounting piece and a tip of the leg portion. It is characterized by having been done.
Therefore, according to the sheet metal frame of the present invention, the mounting piece can be provided without lowering the strength of the frame due to the cutouts and slits, and it can be easily and reliably manufactured by bending.
The present invention also provides a first plate portion, a second plate portion bent from the first plate portion at a first folding line, and an attachment provided over the first plate portion and the second plate portion. A plate portion, wherein the mounting plate portion is configured such that a portion of the second plate portion is bent from the second plate portion at a second folding line parallel to the first folding line, and is parallel to the first plate portion. The first plate portion is bent from the first plate portion at a third fold line parallel to the first fold line and is parallel to the second plate portion. A leg piece extending and extending, and a bent piece connected by bending a tip of the mounting piece and a tip of the leg at a fourth fold line parallel to the first fold line. A method for manufacturing a sheet metal frame, comprising the steps of: Slits are formed at both ends of the plate portion in the extending direction of the first folding line and extend in the direction orthogonal to the first folding line along the mounting plate portion, and the slits are formed using a mold. Bending the second plate portion from the first plate portion at one folding line, and simultaneously bending the attachment piece from the second plate portion at the second folding line, The bending of the leg portion from the first plate portion at a third bending line and the bending of the bent piece portion at the fourth bending line are performed.
Therefore, according to the manufacturing method of the present invention, it is possible to easily and reliably manufacture a sheet metal frame in which the first plate portion is provided with the mounting plate portion.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of an optical disk apparatus provided with a sheet metal frame of the present invention, FIG. 2 is a perspective view of the sheet metal frame, FIG. 3A is a plan view of the sheet metal frame, and FIG. FIG. 3C is a cross-sectional view taken along line CC of FIG.
As shown in FIG. 1, the optical disc device 12 has a rectangular box-shaped housing 14, and the tray 16 protrudes and retracts from an opening 1402 on the front surface of the housing 14, and is placed on the tray 16 at a position where the tray 16 is immersed. The optical disk is rotated, and information is recorded and reproduced by an optical pickup.
A sheet metal frame 18 is provided at the bottom of the housing 14 and the sheet metal frame 18 is formed by bending a thin metal plate such as steel or an aluminum alloy.
As shown in FIGS. 2 and 3, the sheet metal frame 18 includes a bottom plate portion 20 (corresponding to a first plate portion in the claims) that closes the bottom surface of the housing 14, and substantially right and left sides of the bottom plate portion 20. A side plate portion 22 (corresponding to a second plate portion in the claims) which is bent and raised at a right angle, and a plurality of mounting plate portions 24 provided over the bottom plate portion 20 and the side plate portion 22 are provided. A part of a mechanical structure for driving an optical pickup and the like, and a part of a control unit for controlling the mechanical structure and recording and reproducing information are provided via these mounting plate parts 24.
[0008]
The mounting plate portion 24 includes a mounting piece portion 2402 in which a portion of the side plate portion 22 is bent substantially at right angles from the side plate portion 22 and extends in parallel with the bottom plate portion 20, and a portion of the bottom plate portion 20 is substantially perpendicular to the bottom plate portion 20. And a bent piece 2406 for connecting the tip of the mounting piece 2402 and the tip of the leg 2404 to each other.
The attachment piece 2402 has a width W extending along the side plate 22 and a length N1 extending along a direction away from the side plate 22.
The leg piece 2404 has a width W extending along the bottom plate 20 and a length N2 extending along a direction away from the bottom plate 20.
The bent piece portion 2406 has a width W extending along the bottom plate portion 20 and the side plate portion 22.
The width W of the attachment piece 2402, the leg piece 2404, and the bent piece 2406 is formed to have uniform dimensions as shown in FIG.
The bottom plate 20 and the side plate 22 are formed with a cutout 24A having a size corresponding to the size of the mounting plate 24.
[0009]
In the present embodiment, bottom plate portion 20 and side plate portion 22 extend on a plane substantially perpendicular to each other, and mounting piece 2402 extends on a plane substantially perpendicular to side plate portion 22. The leg piece 2404 extends on a plane substantially perpendicular to the bottom plate 20.
The attachment piece 2402 is provided with an attachment hole (screw insertion hole, screw hole, etc.) 2410. Although not shown in the drawings, the bottom plate portion 20 and the side plate portion 22 are provided with various mounting holes other than the mounting holes 2410, mounting seats, and the like.
[0010]
Next, a method of manufacturing the sheet metal frame 18 will be described.
As shown in FIG. 4, a flat metal thin plate 30 having a rectangular shape in plan view is prepared. The thin plate 30 is bent at the first bending line L1 on both sides to obtain a bottom plate portion 20 and side plate portions 22 rising from both sides of the bottom plate portion 20.
First, slits S1 are respectively formed in 30 places of the thin plate on both sides of the mounting plate portion 24 to be formed. More specifically, slits S1 are formed at both ends of the mounting plate portion 24 in the extending direction of the first bending line L1 and extend along the mounting plate portion 24 in a direction orthogonal to the first bending line L1. Form each.
Further, mounting holes 2410 are formed at 30 places of the thin plate corresponding to the mounting piece 2402.
[0011]
Next, as shown in FIGS. 4 and 5, the first press working is performed using the first mold to bend the side plate portions 22 on both sides from the bottom plate portion 20 by approximately 45 degrees at the first bending line L1. Simultaneously with this bending, the attachment piece 2402 from the side plate portion 22 is bent at approximately 45 degrees from the second bending line L2, and the leg piece from the bottom plate portion 20 is bounded from the third bending line L3. The bending of the bent piece portion 2406 at approximately 135 degrees with respect to the fourth bending line L4 is performed.
Note that the first to fourth bending lines L1 to L4 are lines on the drawing required for design or processing, and the first to fourth bending lines L1 to L4 are all parallel.
Next, by using the second die by the second press working, the side plate portions 22 on both sides are further bent approximately 45 degrees from the bottom plate portion 20 at the boundary of the first bending line L1. A further approximately 45 degree bending of the attachment piece 2402 from the side plate 22 at the folding line L2, and a further approximately 45 degree bending of the leg 2404 from the bottom plate 20 at the third folding line L3. Then, the bent piece portion 2406 is further bent at 45 degrees with respect to the fourth bending line L4.
[0012]
Through such a manufacturing process, the sheet metal frame 18 shown in FIGS. 2 and 3 is obtained.
The bending direction of the bottom plate 20 and the side plate 22 and the bending direction of the bent piece 2406 are opposite to each other, and the angle formed between the bottom plate 20 and the side plate 22 and the angle formed by the bent piece 2406 are different. Since both are 90 degrees, the bending process is performed twice. More specifically, when the bending direction of the bottom plate portion 20 and the side plate portion 22 is opposite to the bending direction of the bent piece portion 2406, it is possible to perform bending of about 45 degrees in one bending process. It is preferable from the viewpoint of the upper part and the mold production. By performing the bending process in two steps of 45 degrees in this manner, the sheet metal frame 18 can be easily and reliably manufactured.
Therefore, for example, in the case of the sheet metal frame 18 in which the angle between the bottom plate portion 20 and the side plate portion 22 and the angle between the bent piece portions 2406 are both 45 degrees or less, it is manufactured by one bending process. .
[0013]
In the sheet metal frame 18 according to the embodiment, the mounting piece 2402 is provided on the side plate 22, and the bottom plate 20 and the side plate 22 are formed with a notch 24 </ b> A having a size corresponding to the mounting plate 24. However, since both sides of the cutout 24A are connected by the mounting plate 24 composed of the mounting piece 2402, the leg piece 2404, and the bent piece 2406, the conventional structure shown in FIGS. 7A and 7B is used. The mounting piece 2402 can be provided without reducing the strength of the frame due to the cutouts or slits as in the sheet metal frame shown in FIG. Further, it can be manufactured easily and reliably by bending.
Further, according to the method of manufacturing the sheet metal frame 18 according to the embodiment, the sheet metal frame 18 having the mounting plate portion 24 can be easily and reliably manufactured.
[0014]
As shown in FIG. 6, if a slit S11 extending along the width W direction is provided in the bent piece portion 2406 (more specifically, on the fourth bending line L4), or the mounting piece portion 2402 Is bent from the side plate portion 22 (more specifically, on the second bending line L2), or the base portion 2404A where the leg portion 2404 is bent from the bottom plate portion 20 (more specifically, on the third bending line L3) ) Is advantageous in improving the dimensional accuracy of the mounting piece 2402 and the leg piece 2404 when the slit S12 extending along the width W direction is provided on one side.
Further, in the embodiment, the case where the second plate portion (side plate portion 22) is formed on both sides of the first plate portion (bottom plate portion 20) has been described, but the second plate portion is provided only on one side of the first plate portion. The present invention is of course applied to the case where a portion is formed, and the number of mounting plate portions may be one or plural.
Further, in the embodiments, the case where the present invention is applied to the sheet metal frame of the optical disc device has been described, but the sheet metal frame of the present invention is widely applied to other devices and apparatuses.
[0015]
【The invention's effect】
As described above, according to the present invention, it is possible to obtain a sheet metal frame provided with a mounting piece on a side plate without reducing strength.
[Brief description of the drawings]
FIG. 1 is a perspective view of an optical disc device provided with a sheet metal frame of the present invention.
FIG. 2 is a perspective view of a sheet metal frame.
3A is a plan view of a sheet metal frame, FIG. 3B is a side view of the sheet metal frame, and FIG. 3C is a cross-sectional view taken along line CC of FIG.
FIG. 4 is a plan view of a thin metal plate.
FIG. 5 is an explanatory diagram of a manufacturing process of a sheet metal frame.
FIG. 6 is a perspective view of a modification of the sheet metal frame.
FIGS. 7A and 7B are perspective views of a conventional sheet metal frame including mounting pieces.
[Explanation of symbols]
18: sheet metal frame, 20: bottom plate part, 22: side plate part, 24: mounting plate part, 2402 ... mounting piece part, 2404 ... leg piece part, 2406 ... bending part part.

Claims (7)

第１板部と、
前記第１板部から折り曲げられた第２板部と、
前記第１板部と第２板部とにわたって設けられた取り付け板部とを備え、
前記取り付け板部は、前記第２板部の部分が該第２板部から折り曲げられ前記第１板部と平行して延在する取り付け片部と、前記第１板部から該第１板部の部分が折り曲げられ前記第２板部と平行して延在する脚片部と、前記取り付け片部の先端と脚片部の先端を連結する屈曲片部で構成されている、
ことを特徴とする金属製の薄板からなる板金製フレーム。A first plate portion;
A second plate portion bent from the first plate portion,
A mounting plate provided over the first plate and the second plate;
The mounting plate portion includes a mounting piece portion having a portion of the second plate portion bent from the second plate portion and extending in parallel with the first plate portion, and a first plate portion extending from the first plate portion. Is bent, and is configured by a leg piece that extends in parallel with the second plate portion, and a bent piece that connects the tip of the mounting piece and the tip of the leg piece.
A sheet metal frame made of a thin metal plate. 前記第１板部と第２板部とは、互いにほぼ直角をなす平面上を延在し、前記取り付け片部は、前記第２板部に対してほぼ直角をなす平面上を延在し、前記脚片部は、前記第１板部に対してほぼ直角をなす平面上を延在していることを特徴とする請求項１記載の板金製フレーム。The first plate portion and the second plate portion extend on a plane substantially at right angles to each other, and the mounting piece portion extends on a plane substantially perpendicular to the second plate portion, The sheet metal frame according to claim 1, wherein the leg portion extends on a plane substantially perpendicular to the first plate portion. 前記取り付け片部には取り付け孔が設けられていることを特徴とする請求項１記載の板金製フレーム。The sheet metal frame according to claim 1, wherein a mounting hole is provided in the mounting piece. 前記屈曲片部は、前記第１板部および第２板部に沿って延在する幅を有し、前記屈曲片部には、前記幅方向に沿って延在するスリットが設けられていることを特徴とする請求項１記載の板金製フレーム。The bent piece portion has a width extending along the first plate portion and the second plate portion, and the bent piece portion is provided with a slit extending along the width direction. The sheet metal frame according to claim 1, wherein: 前記取り付け片部は、前記第２板部に沿って延在する幅と、前記第２板部から離れる方向に沿って延在する長さとを有し、前記脚片部は、前記第１板部に沿って延在する幅と、前記第１板部から離れる方向に沿って延在する長さとを有し、前記取り付け片部が前記第２板部から折り曲げられる基部、または、前記脚片部が前記第１板部から折り曲げられる基部の一方には、前記幅方向に沿って延在するスリットが設けられていることを特徴とする請求項１記載の板金製フレーム。The attachment piece portion has a width extending along the second plate portion and a length extending along a direction away from the second plate portion, and the leg piece portion is provided on the first plate portion. A base extending from the second plate portion, the base portion having a width extending along the portion and a length extending along a direction away from the first plate portion, or the leg piece 2. The sheet metal frame according to claim 1, wherein a slit extending along the width direction is provided on one of the bases whose part is bent from the first plate part. 3. 第１板部と、前記第１板部から第１折り曲げ線を境に折り曲げられた第２板部と、前記第１板部と第２板部とにわたって設けられた取り付け板部とを備え、前記取り付け板部は、前記第２板部の部分が該第２板部から前記第１折り曲げ線と平行する第２折り曲げ線を境に折り曲げられ前記第１板部と平行して延在する取り付け片部と、前記第１板部の部分が該第１板部から前記第１折り曲げ線と平行する第３折り曲げ線を境に折り曲げられ前記第２板部と平行して延在して延在する脚片部と、前記取り付け片部の先端と脚片部の先端とが前記第１折り曲げ線と平行する第４折り曲げ線を境に折り曲げられて連結される屈曲片部で構成された板金製フレームの製造方法であって、
平坦な金属製の薄板に、形成すべき前記取り付け板部の前記第１折り曲げ線の延在方向の両端に位置し該取り付け板部に沿って前記第１折り曲げ線と直交する方向に延在するスリットをそれぞれ形成し、
金型を用いて前記第１折り曲げ線を境に前記第１板部から第２板部を折り曲げると共に、この折り曲げと同時に、前記第２折り曲げ線を境とした前記第２板部からの前記取り付け片部の折り曲げと、前記第３折り曲げ線を境とした前記第１板部からの前記脚片部の折り曲げと、前記第４折り曲げ線を境とした前記屈曲片部の折り曲げを行なうようにした、
ことを特徴とする板金製フレームの製造方法。A first plate portion, a second plate portion bent from the first plate portion at a first folding line, and a mounting plate portion provided over the first plate portion and the second plate portion, The mounting plate portion includes a mounting portion in which a portion of the second plate portion is bent from the second plate portion at a second folding line parallel to the first folding line and extends in parallel with the first plate portion. A piece portion and a portion of the first plate portion are bent from the first plate portion at a third fold line parallel to the first fold line and extend in parallel with the second plate portion; And a bent piece connected and bent at a fourth fold line parallel to the first fold line at a tip of the mounting piece and a tip of the attachment piece. A method of manufacturing a frame,
On the flat metal thin plate, the mounting plate portion to be formed is located at both ends in the extending direction of the first folding line and extends along the mounting plate portion in a direction orthogonal to the first folding line. Form slits respectively,
Using a mold, bending the second plate portion from the first plate portion at the boundary of the first bending line, and, simultaneously with the bending, mounting the second plate portion at the boundary of the second bending line. The bending of one leg, the bending of the leg portion from the first plate portion at the boundary of the third bending line, and the bending of the bent portion at the boundary of the fourth bending line are performed. ,
A method for manufacturing a sheet metal frame, comprising: 前記折り曲げは２回行なわれ、１回目の折り曲げで、前記第１折り曲げ線を境に前記第１板部に対して第２板部がほぼ４５度折り曲げられ、前記第２折り曲げ線を境に前記第２板部に対して前記取り付け片部がはほぼ４５度折り曲げられ、前記第３折り曲げ線を境に前記第１板部に対して前記脚片部がほぼ４５度折り曲げられ、前記第４折り曲げ線を境にほぼ１３５度の角度をなすように前記屈曲片部が折り曲げられ、２回目の折り曲げで、前記第１折り曲げ線を境に前記第１板部に対して第２板部がほぼ９０度折り曲げられ、前記第２折り曲げ線を境に前記第２板部に対して前記取り付け片部がはほぼ９０度折り曲げられ、前記第３折り曲げ線を境に前記第１板部に対して前記脚片部がほぼ９０度折り曲げられ、前記第４折り曲げ線を境にほぼ９０度の角度をなすように前記屈曲片部が折り曲げられることを特徴とする請求項６記載の板金製フレームの製造方法。The bending is performed twice, and in the first bending, the second plate portion is bent approximately 45 degrees with respect to the first plate portion with respect to the first bending line, and the second bending line is bounded with the second bending line The mounting piece is bent at approximately 45 degrees with respect to the second plate, the leg is bent at approximately 45 degrees with respect to the first plate at the third bending line, and the fourth bending is performed. The bent piece portion is bent so as to form an angle of approximately 135 degrees with respect to the line, and in the second bending, the second plate portion is substantially 90 degrees from the first plate portion with respect to the first bent line. And the attachment piece is bent substantially 90 degrees with respect to the second plate portion with respect to the second bending line, and the leg is bent with respect to the first plate portion with respect to the third bending line. The one part is bent approximately 90 degrees, and at the fourth bending line, Method for producing a sheet metal frame according to claim 6, wherein said the bent piece is bent at an angle of 90 degrees pot.
JP2003118100A 2003-04-23 2003-04-23 Frame made from sheet metal Pending JP2004327580A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2006106827A1 (en) * 2005-03-31 2008-09-11 パイオニア株式会社 Case body and electrical equipment
WO2018001071A1 (en) * 2016-06-27 2018-01-04 广东欧珀移动通信有限公司 Method of forming through hole in metal member, electronic apparatus housing, and electronic apparatus
CN107570622A (en) * 2017-09-20 2018-01-12 江苏同力机械有限公司 A kind of urgent guide rail and its bending and molding method
WO2018058516A1 (en) * 2016-09-30 2018-04-05 北京小米移动软件有限公司 Preparation method for metal housing, metal housing, electronic device
CN109683460A (en) * 2017-10-18 2019-04-26 佳能株式会社 Supporting member, imaging device, sheet feeding apparatus, sheet material processing apparatus and image read-out

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2006106827A1 (en) * 2005-03-31 2008-09-11 パイオニア株式会社 Case body and electrical equipment
WO2018001071A1 (en) * 2016-06-27 2018-01-04 广东欧珀移动通信有限公司 Method of forming through hole in metal member, electronic apparatus housing, and electronic apparatus
WO2018058516A1 (en) * 2016-09-30 2018-04-05 北京小米移动软件有限公司 Preparation method for metal housing, metal housing, electronic device
CN107570622A (en) * 2017-09-20 2018-01-12 江苏同力机械有限公司 A kind of urgent guide rail and its bending and molding method
CN107570622B (en) * 2017-09-20 2023-11-17 江苏同力日升机械股份有限公司 Emergency guide rail and bending forming method thereof
CN109683460A (en) * 2017-10-18 2019-04-26 佳能株式会社 Supporting member, imaging device, sheet feeding apparatus, sheet material processing apparatus and image read-out
CN109683460B (en) * 2017-10-18 2021-08-24 佳能株式会社 Supporting member, image forming apparatus, sheet feeding device, sheet processing device, and image reading device

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