JPH0574121A - Flexible printed circuit board for magnetic disk device - Google Patents
Flexible printed circuit board for magnetic disk deviceInfo
- Publication number
- JPH0574121A JPH0574121A JP23760391A JP23760391A JPH0574121A JP H0574121 A JPH0574121 A JP H0574121A JP 23760391 A JP23760391 A JP 23760391A JP 23760391 A JP23760391 A JP 23760391A JP H0574121 A JPH0574121 A JP H0574121A
- Authority
- JP
- Japan
- Prior art keywords
- flexible printed
- circuit board
- printed circuit
- magnetic disk
- disk device
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0393—Flexible materials
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、コンピュータの外部記
憶装置等に用いられる磁気ディスク装置に関し、特に磁
気ディスク装置の密閉容器内部から磁気ヘッド等の信号
を密閉容器外部に取り出すための手段として用いるフレ
キシブルプリント基板に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic disk device used for an external storage device of a computer, and more particularly, it is used as a means for extracting a signal from a magnetic head or the like from the inside of a closed container of the magnetic disk device to the outside of the closed container. A flexible printed circuit board.
【０００２】[0002]
【従来の技術】従来の磁気ディスク装置について図面を
参照して説明する。2. Description of the Related Art A conventional magnetic disk device will be described with reference to the drawings.
【０００３】図３は一般のフレキシブルプリント基板を
用いた磁気ディスク装置の内部構造図、図４は従来例の
フレキシブルプリント基板を用いた磁気ディスク装置の
外観図、図４（ａ）は従来例のフレキシブルプリント基
板を用いた磁気ディスク装置の外観図、図４（ｂ）は図
４（ａ）の矢視Ａから見た従来例の磁気ディスク装置の
側面図である。図３、図４において、従来例の磁気ディ
スク装置は、磁気媒体１と、磁気ヘッド２と、上蓋３
と、下蓋４と、シールパッキン５と、ネジ７と、従来の
フレキシブルプリント基板１１とから構成されている。FIG. 3 is an internal structural view of a magnetic disk device using a general flexible printed circuit board, FIG. 4 is an external view of a magnetic disk device using a conventional flexible printed circuit board, and FIG. FIG. 4B is an external view of a magnetic disk device using a flexible printed circuit board, and FIG. 4B is a side view of the conventional magnetic disk device as seen from an arrow A in FIG. 3 and 4, a conventional magnetic disk device includes a magnetic medium 1, a magnetic head 2, and an upper lid 3.
The lower lid 4, the seal packing 5, the screw 7, and the conventional flexible printed board 11 are included.
【０００４】そして、図３のフレキシブルプリント基板
に、従来例では従来のフレキシブルプリント基板１１が
使用されている。In the conventional example, the conventional flexible printed board 11 is used as the flexible printed board shown in FIG.
【０００５】ここで、磁気媒体１は、信号を磁気記録す
る磁気媒体であり、磁気ヘッド２は、磁気媒体１の回転
にともない発生する空気流により磁気媒体１の表面から
微少浮上し、この磁気ヘッド２により磁気媒体１上に信
号の書込み／読出しを行う。上記したように、磁気媒体
１と磁ヘッド２の間隙は非常に微少であり、しかも磁気
媒体１は高速回転し、また、磁気ヘッド２も高速シーク
を行うので、塵挨が微少でも磁気媒体１あるいは磁気ヘ
ッド２の損傷に結び付いてしまう。このため、磁気ディ
スク装置は、塵挨の無いクリーンな環境下において組み
立てられ、しかも使用時に外部から塵挨が入り込まない
ように上蓋３と下蓋４との接合面に、ゴム等から成るシ
ールパッキン５を配し、磁気ヘッド２からの信号を微薄
な従来のフレキシブルプリント基板１１を経由して外部
に取り出すと共に、ネジ７により上蓋３と下蓋４を締め
付けて外部から塵挨の入らぬ密閉構造としている。Here, the magnetic medium 1 is a magnetic medium for magnetically recording a signal, and the magnetic head 2 slightly floats above the surface of the magnetic medium 1 due to the air flow generated as the magnetic medium 1 rotates, and The head 2 writes / reads a signal on the magnetic medium 1. As described above, the gap between the magnetic medium 1 and the magnetic head 2 is very small, and the magnetic medium 1 rotates at a high speed, and the magnetic head 2 also performs a high-speed seek. Alternatively, the magnetic head 2 will be damaged. For this reason, the magnetic disk device is assembled in a clean environment free of dust, and a seal packing made of rubber or the like is provided on the joint surface between the upper lid 3 and the lower lid 4 so as to prevent dust from entering from the outside during use. 5, the signal from the magnetic head 2 is taken out to the outside via a thin conventional flexible printed circuit board 11, and the upper lid 3 and the lower lid 4 are tightened with screws 7 to prevent dust from entering from the outside. I am trying.
【０００６】しかし、磁気ヘッド２からの信号をケース
の外に取り出す手段として微薄な従来のフレキシブルプ
リント基板１１を用いているが、この従来のフレキシブ
ルプリント基板１１は、図３に示すように、ケースの上
蓋３と下蓋４とシールパッキン５の間からケース外部に
はい回されており、従来のフレキシブルプリント基板１
１の厚みのため微小ではあるがシールパッキン５に隙間
８が生ずる。However, although a thin conventional flexible printed circuit board 11 is used as a means for extracting the signal from the magnetic head 2 to the outside of the case, the conventional flexible printed circuit board 11 is, as shown in FIG. The flexible printed circuit board 1 according to the related art is laid out between the upper lid 3, the lower lid 4 and the seal packing 5 to the outside of the case.
Due to the thickness of 1, a gap 8 is formed in the seal packing 5, although it is minute.
【０００７】[0007]
【発明が解決しようとする課題】上述したように従来の
磁気デイスク装置は、磁気ヘッドおよび磁気媒体を塵挨
から保護するために磁気ヘッドおよび磁気媒体は上蓋お
よび下蓋から成るケースの中に配置されており、しかも
上蓋と下蓋との間にはゴム等から成るシールパッキンに
て磁気ディスク装置内部をシールしているが、フレキシ
ブルプリント基板の厚みにより微小ではあるがシールパ
ッキンに隙間が生じ、ここから塵挨が入り込むという欠
点がある。As described above, in the conventional magnetic disk device, the magnetic head and the magnetic medium are arranged in a case including an upper lid and a lower lid in order to protect the magnetic head and the magnetic medium from dust. In addition, the inside of the magnetic disk device is sealed by a seal packing made of rubber or the like between the upper lid and the lower lid, but there is a gap in the seal packing due to the thickness of the flexible printed circuit board, There is a drawback that dust enters from here.
【０００８】本発明の目的は、磁気ディスク装置の密閉
容器の密閉度を保ち外部からの塵埃浸入を防ぐため、こ
の密閉容器の上蓋と下蓋の隙間に設けるゴム等のシール
手段を有し、フレキシブルプリント基板のエッジ部との
接触が長くなるようにシール手段と接触する部分のフレ
キシブルプリント基板の幅方向に凸凹部を形成し、フレ
キシブルプリント基板の厚みにより生じたシール手段と
の隙間をラビリンス構造とすることにより、上記の欠点
を解消し、フレキシブルプリント基板とシール手段との
隙間から磁気ディスク装置内部への塵埃の浸入を防止す
ることができる磁気ディスク装置用フレキシブルプリン
ト基板を提供することにある。An object of the present invention is to have a sealing means such as rubber provided in a gap between the upper lid and the lower lid of the hermetically sealed container in order to maintain the hermeticity of the hermetically sealed container of the magnetic disk device and prevent the infiltration of dust from the outside. A convex / concave portion is formed in the width direction of the flexible printed circuit board at a portion in contact with the sealing device so that the contact with the edge part of the flexible printed circuit board becomes long, and a labyrinth structure is formed in a gap with the sealing device caused by the thickness of the flexible printed circuit board. By providing the above, it is an object of the present invention to provide a flexible printed circuit board for a magnetic disk device which can solve the above-mentioned drawbacks and prevent dust from entering the inside of the magnetic disk device through a gap between the flexible printed circuit board and the sealing means. ..
【０００９】[0009]
【課題を解決するための手段】本発明の磁気ディスク装
置用フレキシブルプリント基板は、磁気ディスク装置内
の磁気ディスク媒体上で磁気ヘッドによりデータの書込
み／読出しを行う機能を有する密閉容器の内部と外部と
の間で磁気ヘッドでデータを書き込み／読み出すための
信号の出し入れをする磁気ディスク装置用フレキシブル
プリント基板において、密閉容器の密閉度を保つための
密閉容器の上蓋と下蓋の隙間に設けたシール手段と接触
する部分のフレキシブルプリント基板の幅方向の両端を
少なくとも一箇所フレキシブルプリント基板と同一の厚
みで幅方向に広げた凸部を設けている。A flexible printed circuit board for a magnetic disk device according to the present invention is provided inside and outside a hermetically sealed container having a function of writing / reading data by a magnetic head on a magnetic disk medium in the magnetic disk device. In a flexible printed circuit board for a magnetic disk device in which a signal for writing / reading data is read / written by a magnetic head between a seal, which is provided in a gap between an upper lid and a lower lid of a hermetically sealed container for maintaining the hermeticity of the hermetically sealed container. At both ends in the width direction of the flexible printed circuit board in a portion in contact with the means, at least one portion is provided with a protrusion having the same thickness as the flexible printed circuit board in the width direction.
【００１０】[0010]
【実施例】次に、本発明の実施例について図面を参照し
て説明する。Embodiments of the present invention will now be described with reference to the drawings.
【００１１】図１は本発明の一実施例のフレキシブルプ
リント基板を用いた磁気ディスク装置の外観図、図２は
本実施例のフレキシブルプリント基板で凸部が二箇所あ
るものの正面図および側面図、図２（ａ）は本実施例の
フレキシブルプリント基板で凸部が二箇所あるものの正
面図、図２（ｂ）は本実施例のフレキシブルプリント基
板で凸部が二箇所あるものの側面図、図３は一般のフレ
キシブルプリント基板を用いた磁気ディスク装置の内部
構造図である。図１、図３において、本実施例の磁気デ
ィスク装置は、磁気媒体１と、磁気ヘッド２と、上蓋３
と、下蓋４と、シールパッキン５と、フレキシブルプリ
ント基板６と、ネジ７と、凸凹部９とから構成されてお
り、この場合の凸凹部９の凸部は両端にそれぞれ一箇所
ある。FIG. 1 is an external view of a magnetic disk device using a flexible printed circuit board according to an embodiment of the present invention, and FIG. 2 is a front view and a side view of a flexible printed circuit board according to this embodiment having two convex portions. FIG. 2A is a front view of the flexible printed circuit board of this embodiment having two convex portions, and FIG. 2B is a side view of the flexible printed circuit board of this embodiment having two convex portions. FIG. 3 is an internal structural diagram of a magnetic disk device using a general flexible printed board. 1 and 3, the magnetic disk device of the present embodiment includes a magnetic medium 1, a magnetic head 2, and an upper lid 3.
The lower lid 4, the seal packing 5, the flexible printed circuit board 6, the screw 7, and the convex / concave portion 9 are provided, and the convex portion of the convex / concave portion 9 in this case is one at each end.
【００１２】ここで、図１は上蓋３を下蓋４に取り付け
ようとしているところを示しており、内部の状態は従来
の技術の項で説明した図３と同じである。そして、図３
のフレキシブルプリント基板に、本実施例ではフレキシ
ブルプリント基板６が使用されている。Here, FIG. 1 shows the upper lid 3 being attached to the lower lid 4, and the internal state is the same as that of FIG. 3 described in the section of the prior art. And FIG.
In this embodiment, the flexible printed board 6 is used as the flexible printed board.
【００１３】また、図２は本実施例のフレキシブルプリ
ント基板を示しており、図２（ａ）はその正面図、図２
（ｂ）はその側面図であり、この場合の凸凹部９の凸部
は両端にそれぞれ二箇所ある。FIG. 2 shows a flexible printed circuit board of this embodiment, and FIG. 2 (a) is a front view thereof, and FIG.
(B) is a side view thereof, and in this case, there are two convex portions of the convex concave portion 9 at both ends.
【００１４】図１、図２、図３において、本実施例のフ
レキシブルプリント基板６は、磁気ディスク装置内部の
密閉度を保つための上蓋３と下蓋４の隙間に設けたシー
ルパッキン５と接触するフレキシブルプリント基板６の
エッジ部をフレキシブルプリント基板６の幅方向に広げ
た凸凹部９を有している。In FIGS. 1, 2 and 3, the flexible printed circuit board 6 of this embodiment is in contact with the seal packing 5 provided in the gap between the upper lid 3 and the lower lid 4 for maintaining the airtightness inside the magnetic disk device. The flexible printed circuit board 6 has convex and concave portions 9 in which the edge portion is widened in the width direction of the flexible printed circuit board 6.
【００１５】そして、上蓋３と下蓋４との間に設けられ
たシールパッキン５と接してフレキシブルプリント基板
６が配置され、磁気ディスク装置内部の磁気ヘッド２か
らの信号を磁気ディスク装置外部に取り出している。そ
して、ネジ７により上蓋３と下蓋４とを締め付け、蓋を
すると、フレキシブルプリント基板６は、シールパッキ
ン５と上蓋３とに挟まれ、フレキシブルプリント基板６
の幅方向の凸凹部９のため、フレキシブルプリント基板
６の厚みにより生じる隙間８は、ラビリンス（迷路）１
０を形成して磁気ディスク装置外部からの塵埃の浸入を
防ぐ。A flexible printed board 6 is arranged in contact with a seal packing 5 provided between the upper lid 3 and the lower lid 4, and a signal from the magnetic head 2 inside the magnetic disk device is taken out to the outside of the magnetic disk device. ing. Then, the upper lid 3 and the lower lid 4 are tightened with the screws 7, and when the lids are closed, the flexible printed circuit board 6 is sandwiched between the seal packing 5 and the upper lid 3, and the flexible printed circuit board 6
Because of the convex-concave portions 9 in the width direction of the labyrinth (labyrinth) 1
0 is formed to prevent dust from entering from the outside of the magnetic disk device.
【００１６】[0016]
【発明の効果】以上説明したように、本発明の磁気ディ
スク装置用フレキシブルプリント基板は、磁気ディスク
装置の密閉容器の密閉度を保ち外部からの塵埃浸入を防
ぐため、この密閉容器の上蓋と下蓋の隙間に設けるゴム
等のシール手段を有し、フレキシブルプリント基板のエ
ッジ部との接触が長くなるようにシール手段と接触する
部分のフレキシブルプリント基板の幅方向に凸凹部を形
成し、フレキシブルプリント基板の厚みにより生じたシ
ール手段との隙間をラビリンス構造とすることにより、
フレキシブルプリント基板とシール手段との隙間から磁
気ディスク装置内部への塵埃の浸入を防止することがで
きるという効果がある。As described above, in the flexible printed circuit board for a magnetic disk device of the present invention, in order to maintain the airtightness of the airtight container of the magnetic disk device and prevent the intrusion of dust from the outside, the upper lid and the bottom of the airtight container are closed. Having a sealing means such as rubber provided in the gap of the lid, a convex / concave portion is formed in the width direction of the flexible printed circuit board at a portion in contact with the sealing device so that the contact with the edge portion of the flexible printed circuit board becomes longer. By using a labyrinth structure for the gap between the sealing means and the thickness of the substrate,
There is an effect that it is possible to prevent dust from entering the inside of the magnetic disk device through the gap between the flexible printed circuit board and the sealing means.
【図１】本発明の一実施例のフレキシブルプリント基板
を用いた磁気ディスク装置の外観図である。FIG. 1 is an external view of a magnetic disk device using a flexible printed circuit board according to an embodiment of the present invention.
【図２】本実施例のフレキシブルプリント基板の正面図
および側面図である。 図２（ａ）は本実施例のフレキシブルプリント基板の正
面図である。 図２（ｂ）は本実施例のフレキシブルプリント基板の側
面図である。FIG. 2 is a front view and a side view of a flexible printed circuit board according to the present embodiment. FIG. 2A is a front view of the flexible printed circuit board of this embodiment. FIG. 2B is a side view of the flexible printed circuit board of this embodiment.
【図３】一般のフレキシブルプリント基板を用いた磁気
ディスク装置の内部構造図である。FIG. 3 is an internal structural diagram of a magnetic disk device using a general flexible printed board.
【図４】従来例のフレキシブルプリント基板を用いた磁
気ディスク装置の外観図である。 図４（ａ）は従来例のフレキシブルプリント基板を用い
た磁気ディスク装置の外観図である。 図４（ｂ）は図４（ａ）の矢視Ａから見た従来例の磁気
ディスク装置の側面図である。FIG. 4 is an external view of a magnetic disk device using a conventional flexible printed circuit board. FIG. 4A is an external view of a magnetic disk device using a conventional flexible printed circuit board. FIG. 4B is a side view of the conventional magnetic disk device seen from the arrow A of FIG.
１ 磁気媒体 ２ 磁気ヘッド ３ 上蓋 ４ 下蓋 ５ シールパッキン ６ フレキシブルプリント基板 ７ ネジ ８ 隙間 ９ 凸凹部 １０ ラビリンス １１ 従来のフレキシブルプリント基板 1 Magnetic Medium 2 Magnetic Head 3 Upper Lid 4 Lower Lid 5 Seal Packing 6 Flexible Printed Circuit Board 7 Screw 8 Gap 9 Convex Recess 10 Labyrinth 11 Conventional Flexible Printed Circuit Board
Claims (1)
上で磁気ヘッドによりデータの書込み／読出しを行う機
能を有する密閉容器の内部と外部との間で前記磁気ヘッ
ドでデータを書き込み／読み出すための信号の出し入れ
をする磁気ディスク装置用フレキシブルプリント基板に
おいて、前記密閉容器の密閉度を保つための前記密閉容
器の上蓋と下蓋の隙間に設けたシール手段と接触する部
分の前記フレキシブルプリント基板の幅方向の両端を少
なくとも一箇所前記フレキシブルプリント基板と同一の
厚みで前記幅方向に広げた凸部を設けたことを特徴とす
る磁気ディスク装置用フレキシブルプリント基板。1. A signal for writing / reading data by the magnetic head between the inside and the outside of an airtight container having a function of writing / reading data on / from a magnetic disk medium in a magnetic disk device. In a flexible printed circuit board for a magnetic disk device for loading and unloading, a width direction of the flexible printed circuit board at a portion in contact with a sealing means provided in a gap between the upper lid and the lower lid of the closed container for maintaining the airtightness of the closed container. A flexible printed board for a magnetic disk device, characterized in that both ends of the flexible printed board are provided at least at one place with the same thickness as that of the flexible printed board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23760391A JPH0574121A (en) | 1991-09-18 | 1991-09-18 | Flexible printed circuit board for magnetic disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23760391A JPH0574121A (en) | 1991-09-18 | 1991-09-18 | Flexible printed circuit board for magnetic disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0574121A true JPH0574121A (en) | 1993-03-26 |
Family
ID=17017771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23760391A Pending JPH0574121A (en) | 1991-09-18 | 1991-09-18 | Flexible printed circuit board for magnetic disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0574121A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6678112B1 (en) * | 1999-05-18 | 2004-01-13 | Fujitsu Limited | Disk drive device |
| KR100525247B1 (en) * | 1998-10-24 | 2006-01-12 | 삼성전자주식회사 | Flexible printed circuit connection device from head to main board in hard disk drive and method thereof |
| US7630168B2 (en) | 2004-08-09 | 2009-12-08 | Hitachi Global Storage Technologies Nethlerlnads B.V. | Solution for leaking problem of punching base and cover with seal tape |
-
1991
- 1991-09-18 JP JP23760391A patent/JPH0574121A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100525247B1 (en) * | 1998-10-24 | 2006-01-12 | 삼성전자주식회사 | Flexible printed circuit connection device from head to main board in hard disk drive and method thereof |
| US6678112B1 (en) * | 1999-05-18 | 2004-01-13 | Fujitsu Limited | Disk drive device |
| US7630168B2 (en) | 2004-08-09 | 2009-12-08 | Hitachi Global Storage Technologies Nethlerlnads B.V. | Solution for leaking problem of punching base and cover with seal tape |
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