JPH0740414B2 - Magnetic disk body - Google Patents
Magnetic disk bodyInfo
- Publication number
- JPH0740414B2 JPH0740414B2 JP60053297A JP5329785A JPH0740414B2 JP H0740414 B2 JPH0740414 B2 JP H0740414B2 JP 60053297 A JP60053297 A JP 60053297A JP 5329785 A JP5329785 A JP 5329785A JP H0740414 B2 JPH0740414 B2 JP H0740414B2
- Authority
- JP
- Japan
- Prior art keywords
- disk
- magnetic disk
- recording
- fixed
- magnetic
- 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.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、例えば磁気デイスクカートリツジなどに用い
られる記録デイスク体に係り、特に記録デイスクの内周
部を固着するデイスク支持板を備えた記録デイスク体に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording disk body used, for example, in a magnetic disk cartridge and the like, and particularly to a recording disk provided with a disk supporting plate for fixing an inner peripheral portion of the recording disk. It is related to the disk body.
第２図は、従来の磁気デイスクカートリツジを記録再生
装置に装着した状態を示す一部断面図である。カートリ
ツジケース１内に記録デイスク体２が回転自在に収納さ
れている。この記録デイスク体２はドーナツ状をした磁
気デイスク３と、それの中央部に配置された約0.5mm厚
の磁性ステンレス板などからなるデイスク支持板４と、
ディスク支持板４にアウトサート成形によりプラスチツ
クで一体に形成され、ハブの径方向の移動を下ケース16
に設けられた駆動軸挿入孔の周壁12と当接して規成する
規制リング５とから構成されている。さらにこの磁気デ
イスク３は第３図に示すように、ポリエステルフイルム
などのベースフイルム６と、それの片面もしくは両面に
設けられた磁性層７とから構成されたシート状のもので
ある。FIG. 2 is a partial cross-sectional view showing a state in which a conventional magnetic disc cartridge is mounted on a recording / reproducing apparatus. A recording disk body 2 is rotatably housed in a cartridge case 1. The recording disk body 2 includes a magnetic disk 3 having a donut shape, and a disk support plate 4 made of a magnetic stainless steel plate having a thickness of about 0.5 mm and arranged at the center thereof.
It is integrally formed on the disk support plate 4 by outsert molding by plastics, and the radial movement of the hub is controlled by the lower case 16
And a regulation ring 5 that abuts on and defines the peripheral wall 12 of the drive shaft insertion hole provided in the. Further, as shown in FIG. 3, the magnetic disk 3 is a sheet-like one composed of a base film 6 such as a polyester film and a magnetic layer 7 provided on one side or both sides thereof.
第２図において８は記録再生装置におけるデイスク駆動
体の一部で、シヤフト９と、ハブ10と、永久磁石11とを
有している。この永久磁石11の磁気的吸引力を利用して
前記デイスク支持板４をバブ10の上面（基準面）に当
接、固定し、それによつて記録再生装置内において磁気
デイスク３の厚さ方向の位置決めがなされる。In FIG. 2, reference numeral 8 is a part of the disk drive in the recording / reproducing apparatus, which has a shaft 9, a hub 10 and a permanent magnet 11. Utilizing the magnetic attraction of the permanent magnet 11, the disk supporting plate 4 is brought into contact with and fixed to the upper surface (reference surface) of the bubbling 10, whereby the magnetic disk 3 in the thickness direction of the magnetic disk 3 in the recording / reproducing apparatus is fixed. Positioning is done.
前記デイスク支持板４は、デイスク駆動体８（ハブ10）
の基準面と当接する当接面を内周側に、磁気デイスク３
の内部を接着固定する固着面を外周側に有している。The disk support plate 4 is a disk drive body 8 (hub 10).
Of the magnetic disk 3 to the inner peripheral side of the contact surface that contacts the reference surface of
Has a fixing surface on the outer peripheral side for adhesively fixing the inside thereof.
ところで従来の記録デイスク体２は第２図に示すよう
に、デイスク支持板４の前記当接面と固着面とが反対側
に設けられている。すなわち、当接面に対する固着面の
位置がデイスク支持板４の厚さのばらつきによつて変動
し、そのため磁気デイスク３の固定位置がばらついてし
まう。デイスク支持板４の当接面が当接するデイスク駆
動体８（ハブ10）の基準面を基準にして磁気ヘツドの磁
気デイスク３に対する移動量が決定されているから、前
述のようにデイスク支持板４の厚さのバラツキによつて
磁気デイスク３の固定位置がばらついてしまうと、結局
は磁気デイスク３に対する磁気ヘツドの接触圧が変動
し、ヘツドコンタクトが悪くなる。By the way, in the conventional recording disk body 2, as shown in FIG. 2, the contact surface and the fixing surface of the disk supporting plate 4 are provided on opposite sides. That is, the position of the fixed surface with respect to the abutting surface fluctuates due to the variation in the thickness of the disk supporting plate 4, so that the fixed position of the magnetic disk 3 varies. Since the moving amount of the magnetic head with respect to the magnetic disk 3 is determined with reference to the reference surface of the disk driving body 8 (hub 10) with which the contact surface of the disk supporting plate 4 comes into contact, the disk supporting plate 4 as described above. If the fixed position of the magnetic disk 3 varies due to the variation in the thickness of the magnetic disk 3, the contact pressure of the magnetic head on the magnetic disk 3 fluctuates, and the head contact deteriorates.
本発明の目的は、このような従来技術の欠点を解消し、
ヘツドコンタクトが常に一定で、信頼性の高い記録デイ
スク体を提供するにある。The object of the present invention is to eliminate such drawbacks of the prior art,
The purpose of the present invention is to provide a highly reliable recording disk body with constant head contact.
前述の目的を達成するため、本発明は、デイスク支持板
の当接面と固着面とを同一平面上に設けたことを特徴と
するものである。In order to achieve the above-mentioned object, the present invention is characterized in that the contact surface and the fixing surface of the disk supporting plate are provided on the same plane.
次に本発明の実施例を第１図とももに説明する。この図
において、第２図に示した従来のものとほぼ同一であ
り、主に磁気デイスク３の固着位置の点で相違する。す
なわち、ハブ10の上面（基準面）に当接するデイスク支
持板４の当接面と同一平面上に磁気デイスク３を接着、
固定したものである。第４図は、磁気デイスクカートリ
ツジの一部底面図である。図中の13はスピンドル受け
面、14は駆動ピン挿入孔である。Next, an embodiment of the present invention will be described with reference to FIG. In this figure, it is almost the same as the conventional one shown in FIG. 2, and mainly differs in the fixing position of the magnetic disk 3. That is, the magnetic disk 3 is bonded on the same plane as the contact surface of the disk supporting plate 4 that contacts the upper surface (reference surface) of the hub 10.
It is fixed. FIG. 4 is a partial bottom view of the magnetic disk cartridge. In the figure, 13 is a spindle receiving surface, and 14 is a drive pin insertion hole.
なお、磁気デイスク３を固着する際には、規制リブ５が
磁気デイスク３の径方向の位置決めに役立つている。こ
の場合、規制リブ５は第４図に示すように磁気デイスク
３の中心を中心とした同心円の環状リブとなつており、
その環状リブに磁気デイスク３の中心孔を嵌入すること
によつて磁気デイスク３の位置決めがなされる。この場
合環状リブ５は、連続した環状リブに限らず、不連続の
環状リブであつてもよい。When the magnetic disk 3 is fixed, the regulation rib 5 serves to position the magnetic disk 3 in the radial direction. In this case, the regulating rib 5 is an annular rib of a concentric circle centered on the center of the magnetic disk 3 as shown in FIG.
The magnetic disk 3 is positioned by fitting the center hole of the magnetic disk 3 into the annular rib. In this case, the annular rib 5 is not limited to a continuous annular rib and may be a discontinuous annular rib.
本発明は前述のように、デイスク支持板の基準面との当
接面と、記録デイスクの固着面とを同一平面上に設ける
ように構成したから、記録デイスクの固着位置に対する
デイスク支持板の厚さのばらつきによる影響がなくなつ
た。そのため記録デイスクを適正位置に固着することが
でき、ヘツドコンタクトが安定し、信頼性の高い記録デ
イスク体を提供することができる。As described above, according to the present invention, the contact surface of the disk supporting plate with the reference surface and the fixing surface of the recording disk are provided on the same plane. The influence due to the variation in size has disappeared. Therefore, the recording disk can be fixed to an appropriate position, the head contact is stable, and a highly reliable recording disk body can be provided.
第１図は本発明の実施例に係る磁気デイスクカートリツ
ジを記録再生装置に装着した状態を示す一部断面図、第
２図は従来の磁気デイスクカートリツジの同様の一部断
面図、第３図は磁気デイスクの拡大断面図、第４図は磁
気デイスクカートリツジの一部底面図である。 ２……記録デイスク体、３……磁気デイスク、 ４……デイスク支持板、８……デイスク駆動体、 10……ハブ、11……永久磁石。FIG. 1 is a partial sectional view showing a state in which a magnetic disk cartridge according to an embodiment of the present invention is mounted on a recording / reproducing apparatus, and FIG. 2 is a similar partial sectional view of a conventional magnetic disk cartridge, and FIG. The figure is an enlarged sectional view of the magnetic disk, and FIG. 4 is a partial bottom view of the magnetic disk cartridge. 2 ... recording disk body, 3 ... magnetic disk, 4 ... disk support plate, 8 ... disk drive body, 10 ... hub, 11 ... permanent magnet.
Claims (2)
と、記録デイスクの内周部を固着する固着面とを有する
デイスク支持板の前記固着面に記録デイスクを固着した
記録デイスク体において、前記当接面と固着面とがデイ
スク支持板の同一平面上に設けられていることを特徴と
する記録デイスク体。1. A recording disk body in which a recording disk is fixed to the fixed surface of a disk support plate, which has a contact surface for contacting a reference surface of the disk drive member and a fixed surface for fixing the inner peripheral portion of the recording disk. The recording disk body, wherein the contact surface and the fixing surface are provided on the same plane of the disk supporting plate.
ブを設け、この環状リブに記録デイスクの中心孔を嵌入
させてデイスク支持板に固着した特許請求の範囲第
（１）項記載の記録デイスク体。2. The annular rib for positioning the hub in the radial direction is provided on the contact surface, and the central hole of the recording disk is fitted into the annular rib and fixed to the disk supporting plate. Recorded disc body.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60053297A JPH0740414B2 (en) | 1985-03-19 | 1985-03-19 | Magnetic disk body |
| KR1019860000659A KR940009470B1 (en) | 1985-02-16 | 1986-01-31 | Disk cartridge & disk driver |
| DE8686101816T DE3679416D1 (en) | 1985-02-16 | 1986-02-13 | ARRANGEMENT FOR THE POSITIONING OF A RECORDING PLATE TO BE ACCOMMODATED IN A CASSETTE. |
| EP86101816A EP0192188B1 (en) | 1985-02-16 | 1986-02-13 | Arrangement for positioning a recording disc of a disc cartridge |
| US06/829,217 US4743994A (en) | 1985-02-16 | 1986-02-14 | Arrangement for positioning a recording disc of a disc cartridge |
| US07/150,300 US4831478A (en) | 1985-02-16 | 1988-01-29 | Disc drive assembly for supporting a recording disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60053297A JPH0740414B2 (en) | 1985-03-19 | 1985-03-19 | Magnetic disk body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61214182A JPS61214182A (en) | 1986-09-24 |
| JPH0740414B2 true JPH0740414B2 (en) | 1995-05-01 |
Family
ID=12938789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60053297A Expired - Fee Related JPH0740414B2 (en) | 1985-02-16 | 1985-03-19 | Magnetic disk body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0740414B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH042373U (en) * | 1990-04-19 | 1992-01-09 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5523630Y2 (en) * | 1975-09-30 | 1980-06-05 | ||
| JPS55136038U (en) * | 1979-03-19 | 1980-09-27 | ||
| JPH0216461Y2 (en) * | 1980-09-29 | 1990-05-07 |
-
1985
- 1985-03-19 JP JP60053297A patent/JPH0740414B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61214182A (en) | 1986-09-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |