JPH0283853A - Optical disk device - Google Patents
Optical disk deviceInfo
- Publication number
- JPH0283853A JPH0283853A JP63237032A JP23703288A JPH0283853A JP H0283853 A JPH0283853 A JP H0283853A JP 63237032 A JP63237032 A JP 63237032A JP 23703288 A JP23703288 A JP 23703288A JP H0283853 A JPH0283853 A JP H0283853A
- Authority
- JP
- Japan
- Prior art keywords
- optical disk
- spindle
- positioning
- hub
- optical disc
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 51
- 238000010438 heat treatment Methods 0.000 claims abstract 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 2
- 238000010791 quenching Methods 0.000 abstract 1
- 230000000171 quenching effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 2
- 230000002079 cooperative effect Effects 0.000 description 1
Landscapes
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は光ディスク装置に関し、特に光ディスクを嵌合
して位置決め芯出し部のハブの改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an optical disc device, and more particularly to an improvement in a hub of a positioning and centering portion into which an optical disc is fitted.
従来、この種の光ディスク装置は、光ディスクの中央部
に芯出し位置決め用の丸穴開口部を有する熱処理なしの
マルテンサイト系ステンレス鋼製ハブを設け、熱処理を
施したマルテンサイト系ステンレス鋼製のスピンドルシ
ャフトの外径部と嵌合させて光ディスクをスピンドルに
装着し、スピンドルのスピンドルハブに設けられたマグ
ネットにより光ディスクを吸着固定する構造となってい
た。Conventionally, this type of optical disk device has a hub made of martensitic stainless steel that is not heat treated and has a round hole opening for centering and positioning in the center of the optical disk, and a spindle made of martensitic stainless steel that has been heat treated. The optical disk was fitted onto the outer diameter of the shaft and mounted on the spindle, and the optical disk was attracted and fixed by a magnet provided on the spindle hub of the spindle.
上述した従来の光ディスク装置は、光ディスクの芯出し
位置決め用のハブには熱処理（焼入れ）を施しておらず
、一方スピンドルシャフトには熱処理を施しているため
、両者間の硬度差が大きく、光ディスクのスピンドルへ
の装着・離脱の繰り返しによる摩擦により、ハブの内径
部の磨耗量が増大し、光ディスクをスピンドルに装着し
た状態で偏心量が大きくなったり、スピンドルハブに対
してスピンドルシャフトが傾斜するといっな現象が発生
するという欠点がある。In the conventional optical disc device described above, the hub for centering and positioning the optical disc is not heat-treated (hardened), but the spindle shaft is heat-treated, so there is a large difference in hardness between the two, and the optical disc Friction caused by repeated loading and unloading on the spindle increases the amount of wear on the inner diameter of the hub, resulting in increased eccentricity when an optical disk is attached to the spindle, or when the spindle shaft tilts with respect to the spindle hub. The disadvantage is that this phenomenon occurs.
本発明は光ディスクと前記光ディスクを位置決め支持し
て回転させるスピンドル回転機構と情報記録・再生用の
光ヘッド及び前記光ヘッドを保持固定して位置決めを行
うキャリッジとを備える光ディスク装置において、前記
スピンドル回転機構のスピンドルシャフトの外周部及び
前記外周部と嵌合する前記光ディスクの位置決め芯出し
部のハブが熱処理を施されたものにより構成されている
。The present invention provides an optical disc device comprising an optical disc, a spindle rotation mechanism for positioning, supporting and rotating the optical disc, an optical head for recording and reproducing information, and a carriage for holding and fixing the optical head for positioning. The outer circumferential portion of the spindle shaft and the hub of the positioning and centering portion of the optical disk that fits into the outer circumferential portion are heat-treated.
次に本発明の実施例について図面を参照して説明する。 Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例である光ディスク装置の部分
断面の正面図を示す。FIG. 1 shows a partially sectional front view of an optical disc device according to an embodiment of the present invention.
第１図において、光ディスク装置はフレーム１３に防振
ゴム９を介して搭載されたベースプレート１と、ベース
プレートｌに固定されカートリッジ５に収容された光デ
ィスク６を支持回転させるスピンドル２及び光ヘッドＩ
Ｉを保持固定して位置決め動作を行うキャリッジｌＯと
により構成されている。スピンドル２はスピンドルハブ
３．スピンドルシャフト８及びモータ１４より構成され
、スピンドルハブ３には光ディスク６のハブ７の対向面
にマグネット４が設けられ、熱処理を施したハブ７及び
スピンドルシャフト８との嵌合により光ディスク６を半
径方向に位置決めし芯出しと、スピンドルハブ３のフラ
ンジ面３ａでスピンドルシャフト８の軸方向の位置決め
とを行い、マグネット４の吸着力によって光ディスク６
をスピンドル２に装着している。また、キャリッジｌＯ
は光ヘッド１１を搭載し、光ディスク６に対して半径方
向に直線往復運動を行う。このキャリッジＩＯの直線往
復運動は、永久磁石によって構成される磁気回路Ｉ２が
設けられキャリッジｌＯに連結されているコイル（図示
せず）と、磁気回路Ｉ２との共働作用により駆動される
。In FIG. 1, the optical disc device includes a base plate 1 mounted on a frame 13 via a vibration isolating rubber 9, a spindle 2 fixed to the base plate l for supporting and rotating an optical disc 6 housed in a cartridge 5, and an optical head I.
The carriage 10 holds and fixes the carriage 10 and performs positioning operations. Spindle 2 is connected to spindle hub 3. Consisting of a spindle shaft 8 and a motor 14, the spindle hub 3 is provided with a magnet 4 on the opposite surface of the hub 7 of the optical disk 6, and when fitted with the heat-treated hub 7 and spindle shaft 8, the optical disk 6 is rotated in the radial direction. The flange surface 3a of the spindle hub 3 positions the spindle shaft 8 in the axial direction, and the attraction force of the magnet 4 holds the optical disc 6.
is attached to spindle 2. Also, the carriage lO
is equipped with an optical head 11 and performs linear reciprocating motion in the radial direction with respect to the optical disk 6. This linear reciprocating motion of the carriage IO is driven by the cooperative action of a coil (not shown) provided with a magnetic circuit I2 constituted by a permanent magnet and connected to the carriage IO, and the magnetic circuit I2.
上述のように、構成された光ディスク装置は次のように
動作する。まず、モータ１４によって駆動される光ディ
スク６がスピンドル２と共に回転しているとき、光ディ
スク装置の上位装置から位置決めの指令を受けるとキャ
リッジＩＯは、位置決め制御回路（図示せず）に指示さ
れてシーク動作を行い、指令された所定位置において光
ヘッド１１により光ディスク６へ情報の記録・再生を行
う。The optical disc device configured as described above operates as follows. First, when the optical disk 6 driven by the motor 14 is rotating together with the spindle 2, when a positioning command is received from a host device of the optical disk device, the carriage IO is instructed by a positioning control circuit (not shown) to perform a seek operation. The optical head 11 records and reproduces information on the optical disc 6 at the designated predetermined position.
以上説明したように、本発明の光ディスク装置は光ディ
スクの位置決めしのハブにスピンドルシャフトとほぼ同
一の硬度となる熱処理（焼入れ）を施すという簡単な構
成により、光ディスクをスピンドルへの着脱動作の繰り
返しによる磨耗量を極めて少くでき偏心量や傾斜が極小
となり、信頼性の高い光ディスク装置を提供できるとい
う効果がある。As explained above, the optical disk device of the present invention has a simple configuration in which the hub for positioning the optical disk is heat-treated (quenched) to have almost the same hardness as the spindle shaft, and the optical disk device can be repeatedly attached to and removed from the spindle. This has the effect that the amount of wear can be extremely reduced, the amount of eccentricity and inclination can be minimized, and a highly reliable optical disc device can be provided.
第１図は本発明の一実施例を示す光ディスク装置の部分
断面の正面図である。
１・・・ベースプレート、２・・・スピンドル、３・・
・スピンドハブ、３ａ・・・フランジ面３ａ、４・・・
マグネット、５・・・カートリッジ、６・・・光ディス
ク、？・・・ハブ、８・・・スピンドルシャフト、９・
・・防振ゴム、ＩＯ・・・キャリッジ、１１・・・光ヘ
ッド、１２・・・磁気回路、１３・・・フレーム、１４
・・・モータ。FIG. 1 is a partially sectional front view of an optical disc device showing an embodiment of the present invention. 1...Base plate, 2...Spindle, 3...
・Spined hub, 3a...flange surface 3a, 4...
Magnet, 5...cartridge, 6...optical disc, ? ...Hub, 8...Spindle shaft, 9.
... Anti-vibration rubber, IO... Carriage, 11... Optical head, 12... Magnetic circuit, 13... Frame, 14
···motor.
Claims (1)
せるスピンドル回転機構と情報記録・再生用の光ヘッド
及び前記光ヘッドを保持固定して位置決めを行うキャリ
ッジとを備える光ディスク装置において、前記スピンド
ル回転機構のスピンドルシャフトの外周部及び前記外周
部と嵌合する前記光ディスクの位置決め芯出し部のハブ
が熱処理を施されたことを特徴とする光ディスク装置。In an optical disc device comprising an optical disc, a spindle rotation mechanism for positioning, supporting and rotating the optical disc, an optical head for recording/reproducing information, and a carriage for holding and fixing the optical head for positioning, a spindle shaft of the spindle rotation mechanism. An optical disc device characterized in that an outer circumferential portion of and a hub of a positioning and centering portion of the optical disk that fits with the outer circumferential portion are subjected to heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63237032A JPH0283853A (en) | 1988-09-20 | 1988-09-20 | Optical disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63237032A JPH0283853A (en) | 1988-09-20 | 1988-09-20 | Optical disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0283853A true JPH0283853A (en) | 1990-03-23 |
Family
ID=17009385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63237032A Pending JPH0283853A (en) | 1988-09-20 | 1988-09-20 | Optical disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0283853A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04139652A (en) * | 1990-09-30 | 1992-05-13 | Nec Corp | Optical disk device |
| JPH05120736A (en) * | 1991-10-25 | 1993-05-18 | Sharp Corp | Production of disk-shaped information recording medium |
-
1988
- 1988-09-20 JP JP63237032A patent/JPH0283853A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04139652A (en) * | 1990-09-30 | 1992-05-13 | Nec Corp | Optical disk device |
| JPH05120736A (en) * | 1991-10-25 | 1993-05-18 | Sharp Corp | Production of disk-shaped information recording medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5675455A (en) | Rotary actuator for disk drive | |
| US20020024763A1 (en) | Disc drive clamp having centering features | |
| HK176495A (en) | Device for eliminating the axial and radial play of an axle | |
| US5689388A (en) | Reduced-height magnetic disk drive unit, and disk mounting device for the unit | |
| JP2002247828A (en) | Spindle motor | |
| JPH0283853A (en) | Optical disk device | |
| JPH0542067B2 (en) | ||
| KR100370763B1 (en) | Swage mount plate in hard disk drive | |
| JP2003045105A (en) | Spindle motor | |
| KR100468762B1 (en) | Assembling method of disk stack assembly of hard disk drive and apparatus therefore, and writing method and writter of servo information of hard disk drive | |
| JPH11339379A (en) | Disk rotation drive mechanism | |
| JPH01185869A (en) | Magnetic disk device | |
| JPH04139652A (en) | Optical disk device | |
| JP2996805B2 (en) | Spindle motor | |
| JP2985417B2 (en) | Optical disk drive | |
| JP2662342B2 (en) | Spindle structure of magnetic disk drive and method of assembling the same | |
| JPH056595Y2 (en) | ||
| JPH0283852A (en) | Optical disk device | |
| JPH10125053A (en) | Magnetic disc drive | |
| JPH02101671A (en) | Optical disk device | |
| JP3469601B2 (en) | motor | |
| KR0117658Y1 (en) | Actuator device of hard disk drive | |
| JPH0739087Y2 (en) | Disk drive | |
| JP2532148Y2 (en) | Disk drive | |
| JPH1097780A (en) | Disk damper for optical disk |