JP2006139894A - Recording/playing-back device and disk cartridge - Google Patents

Recording/playing-back device and disk cartridge Download PDF

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JP2006139894A
JP2006139894A JP2005155367A JP2005155367A JP2006139894A JP 2006139894 A JP2006139894 A JP 2006139894A JP 2005155367 A JP2005155367 A JP 2005155367A JP 2005155367 A JP2005155367 A JP 2005155367A JP 2006139894 A JP2006139894 A JP 2006139894A
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recording
disk
stabilizing member
acting force
reproducing apparatus
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Yasutomo Aman
康知 阿萬
Nobuaki Onaki
伸晃 小名木
Masami Nishida
雅己 西田
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Chotaro Engineering Kk
Ricoh Co Ltd
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Chotaro Engineering Kk
Ricoh Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To obtain a satisfied characteristic for a surface wobbling of a disk in whole area on a straight line in the optional radial direction on a disk surface and also to simplify the constitution for generating aerodynamical working force. <P>SOLUTION: 1st stabilizing members 31 for generating the 1st aerodynamical working force such as tilting the surface of the optical disk 1 to the radial direction of the disk, 2nd stabilizing members 32 respectively formed integrally with the 1st stabilizing members 31 to generate the 2nd working force such as making the optical disk 1 parallel with the straight line A passing through a center of the optical disk 1, and a 4th stabilizing member 30 confronted with the optical pickup 4 facing each other across the optical disk 1 to make a 3rd aerodynamical working force actuate on the surface of the disk, are disposed at the side opposite to the installation side of the optical pickup 4 for optically scanning with respect to the optical disk 1 which is a flexible recording disk. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、可撓性を有する記録ディスクに対して記録および／または再生処理を行う記録／再生装置、およびその記録ディスクを収納するディスクカートリッジに関するものである。   The present invention relates to a recording / reproducing apparatus that performs recording and / or reproducing processing on a flexible recording disk, and a disk cartridge that stores the recording disk.

近年、テレビ放送のデジタル化が始まるなど、大容量のデジタルデータを記録することが情報記録媒体に求められている。例えば、光ディスクの分野においては、記録／再生のために光ディスクに集光される光スポット径を小さくすることが、高密度化のための基本的な方法の一つに挙げられる（以下、光ディスクを代表として説明するが、本発明が対象とする記録／再生装置に用いられる記録ディスクは、相変化メモリ，光磁気メモリ，ホログラムメモリなどのディスク状の記録ディスクで活用するものすべてを対象にし、特に光ディスクに限定するものではない）。   In recent years, there has been a demand for information recording media to record large volumes of digital data, such as the start of digitization of television broadcasting. For example, in the field of optical discs, one of the basic methods for increasing the density is to reduce the diameter of the light spot collected on the optical disc for recording / reproduction (hereinafter referred to as an optical disc). As a representative example, the recording disk used in the recording / reproducing apparatus targeted by the present invention is intended for all the disk-shaped recording disks such as phase change memory, magneto-optical memory, hologram memory, etc. Not limited to optical discs).

このため、光ディスクの高密度化においては、記録／再生のために用いられる光の波長を短く、かつ対物レンズの開口数ＮＡを大きくすることが有効である。光の波長についてはＣＤ（ｃｏｍｐａｃｔ ｄｉｓｋ）では近赤外光の７８０ｎｍ、ＤＶＤ（ｄｉｇｉｔａｌ ｖｅｒｓａｔｉｌｅ ｄｉｓｋ）では赤色光の６５０ｎｍ近傍の波長が用いられている。最近、青紫光の半導体レーザが開発され、今後は４００ｎｍ近傍のレーザ光が使用されると予想される。   For this reason, in increasing the density of the optical disk, it is effective to shorten the wavelength of light used for recording / reproduction and increase the numerical aperture NA of the objective lens. As for the wavelength of light, a wavelength of near infrared light of 780 nm is used for CD (compact disk), and a wavelength of about 650 nm of red light is used for DVD (digital versatile disk). Recently, a blue-violet semiconductor laser has been developed, and it is expected that a laser beam of around 400 nm will be used in the future.

また、対物レンズについては、ＣＤ用はＮＡ０．５未満であったが、ＤＶＤ用はＮＡ０.６程度である。今後、さらに開口数（ＮＡ）を大きくしてＮＡ０.７以上とすることが求められる。しかし、対物レンズのＮＡを大きくすること、および光の波長を短くすることは、光を絞るときに収差の影響が大きくなることでもある。したがって、光ディスクのチルトに対するマージンが減ることになる。また、ＮＡを大きくすることによって焦点深度が小さくなるため、フォーカスサーボ精度を上げなくてはならない。   As for the objective lens, the NA for CD is less than 0.5, but the NA for DVD is about 0.6. In the future, it is required to further increase the numerical aperture (NA) to NA 0.7 or more. However, increasing the NA of the objective lens and shortening the wavelength of light also increase the influence of aberrations when focusing light. Therefore, the margin for the tilt of the optical disk is reduced. Further, since the depth of focus is reduced by increasing the NA, the focus servo accuracy must be increased.

さらに、高ＮＡの対物レンズを使用することによって、対物レンズと光ディスクの記録面との距離が小さくなってしまうため、光ディスクの面振れを小さくしておかないと、始動時のフォーカスサーボを引き込む直前、対物レンズと光ディスクとが衝突することがあり、ピックアップの故障の原因となる。   Furthermore, since the distance between the objective lens and the recording surface of the optical disk is reduced by using a high-NA objective lens, the surface vibration of the optical disk must be reduced before the focus servo at the start is pulled in. The objective lens and the optical disk may collide, causing a pickup failure.

短波長，高ＮＡの大容量光ディスクとして、例えば非特許文献１に記載されているように、ＣＤと同程度に厚く、かつ剛性の大きい基板に記録膜を成膜し、記録／再生用の光を基板を通さずに、薄いカバー層内を通して記録膜に対して記録／再生する構成のシステムが提案されている。   As a short-wavelength, high-NA high-capacity optical disk, for example, as described in Non-Patent Document 1, a recording film is formed on a substrate that is as thick as a CD and has high rigidity, and is used for recording / reproducing light. Has been proposed which records / reproduces data on / from a recording film through a thin cover layer without passing through the substrate.

また、特許文献１〜３あるいは非特許文献１，２には、ベルヌーイの法則による空気力学的作用力を利用して光ディスクにおける面振れを安定化させるため、安定化部材に対向させて可撓性を有する光ディスクを回転させる構成の記録／再生装置、あるいは可撓性を有する光ディスクの構成などについての記載がある。
特開平７−１０５６５７号公報 特開平１０−３０８０５９号公報 米国特許出願公開第２００２／０１８６６３６号明細書 オー・プラス・イー（Ｏ ＰＬＵＳ Ｅ）第２０巻，第２号，Ｐ．１８３ページ 「オプティカル・リードアウト・オブ・ビデオディスク」 アイイーイーイー・トランザクション・オン・コンシューマー・エレクトロニクス（“ＯＰＴＩＣＡＬ ＲＥＡＤＯＵＴ ＯＦ ＶＩＤＥＯＤＩＳＣ”，ＩＥＥＥ ＴＲＡＮＳＡＣＴＩＯＮ ＯＮ ＣＯＮＳＵＭＥＲ ＥＬＥＣＴＲＯＮＩＣＳ），１９７６年１１月、Ｐ．３０４−３０８ Further, in Patent Documents 1 to 3 or Non-Patent Documents 1 and 2, in order to stabilize the surface runout in the optical disk by utilizing the aerodynamic action force according to Bernoulli's law, it is flexible to face the stabilizing member. There is a description of a recording / reproducing apparatus configured to rotate an optical disk having a configuration or a configuration of a flexible optical disk.
JP-A-7-105657 Japanese Patent Laid-Open No. 10-308059 US Patent Application Publication No. 2002/0186636 O PLUS E Vol. 20, No. 2, p. 183 pages “Optical Lead-Out of Video Disc”, “Either READOUT OF VIDEODISC”, IEEE TRANSACTION ON CONSUMER ELECTRONICS, November 1976, p. 304-308

しかしながら、前記従来の技術において、光ディスクの基板を剛体で形成すると、回転する光ディスクにおける面振れ，チルトを小さくするためには、きわめて正確な成形をし、かつ熱変形が生じないように低温で記録膜を成膜しなければならない。このことは、光ディスク製造に係るタクトタイムを長くすることになり、コストを上げる原因となる。   However, in the conventional technique, when the substrate of the optical disk is formed of a rigid body, in order to reduce surface deflection and tilt in the rotating optical disk, extremely accurate molding is performed and recording is performed at a low temperature so that thermal deformation does not occur. A film must be deposited. This prolongs the tact time associated with optical disc manufacture and increases costs.

また、特許文献１，２に記載されている、可撓性を有する光ディスクを安定板上で回転させる方法では、光ディスクと安定化板が接して摺動する危険性が高く、ディスク面あるいは安定化板面が傷ついてしまうという問題がある。この摺動により、発塵を引き起こして、その塵埃などがエラーを発生させる原因となる。   Further, in the method of rotating a flexible optical disk on a stabilizing plate described in Patent Documents 1 and 2, there is a high risk that the optical disk and the stabilizing plate will slide in contact with each other. There is a problem that the plate surface is damaged. This sliding causes dust generation, which causes an error.

また、単に平面状の安定化板を用いただけでは、ディスク面振れの低減効果にも限界があり、高ＮＡの対物レンズを使用する際に、対物レンズとディスクが衝突する危険性は未だ問題として残されたままである。   Moreover, there is a limit to the effect of reducing the disc surface shake by simply using a flat stabilizer, and the risk of collision between the objective lens and the disc is still a problem when using a high NA objective lens. It remains.

安定化板を用いる方法の一つとして、非特許文献２に記載されているような方法もある。この構成においては、U-shaped stabilizerなる２つの安定化部材から構成される部材により形成した狭いギャップに、フレシキブルディスクを挟んで回転させることにより、飛躍的に小さなディスク面振れに抑えることを実現できるものの、非特許文献２にも記載されているように、フレキシブルディスクと安定化部材の間のギャップが片側２５μｍと小さいため、安定化部材とディスク間にゴミなどを巻き込んで、記録膜を損傷し、直接エラーを引き起こす危険性がある。特に、この構成においては、安定化部材がディスクの表裏で必ず近接するため、情報記録部をディスクの表裏のいずれに形成した場合にも、この問題は避けることができない。   As one of the methods using the stabilizing plate, there is a method as described in Non-Patent Document 2. In this configuration, by rotating the flexible disc with a narrow gap formed by a member composed of two stabilizing members called U-shaped stabilizers, it is possible to achieve dramatic reduction in disc surface runout. However, as described in Non-Patent Document 2, since the gap between the flexible disk and the stabilizing member is as small as 25 μm on one side, dust or the like is caught between the stabilizing member and the disk, and the recording film is damaged. There is a risk of causing an error directly. In particular, in this configuration, since the stabilizing member is always close to the front and back of the disc, this problem cannot be avoided even when the information recording portion is formed on either the front or back of the disc.

これらの問題を解決するための１つの手段として、本件出願人は、特許文献３などにおいて、光ディスクとの対向面が円弧状をなす円柱状の安定化ガイド部材を用い、光ディスクにおける安定化ガイド部材による空気圧の作用による面振れが安定する部位において、ディスク回転方向上流側と下流側とに空気圧の作用を生じさせない領域（安定化ガイド部材がない空間部）を設けて、面振れを安定化させた部位の前後位置に光ディスクに「逃げ」となる部分を存在させ、面ぶれを安定化させた部位での光ディスクにおける反発力を小さくすることにより、空気力による安定化力の効果を増大させるようにした発明を提案した。   As one means for solving these problems, the applicant of the present application uses a cylindrical stabilization guide member in which a surface facing the optical disc forms an arc shape in Patent Document 3, etc. In areas where the surface runout due to the air pressure due to the air becomes stable, areas where no air pressure action is generated (a space without a stabilizing guide member) are provided on the upstream and downstream sides in the disk rotation direction to stabilize the surface runout. In order to increase the effect of stabilizing force by aerodynamic force by reducing the repulsive force in the optical disk at the part where the surface blurring is stabilized by making the optical disk have a “escape” part at the front and rear positions of the part Proposed the invention.

特許文献３の発明によれば、可撓性光ディスクの面振れを確実に抑制し、高密度の記録を可能にし、また対物レンズとの摺接などの不具合の発生を防ぐことが可能となるが、反面、実際には、安定化ガイド部材と記録／再生ヘッドとの複雑な位置調整制御が必要となるため、ドライブ制御系の負荷が大きくなるばかりでなく、装置コストがかなり高価なものになってしまう。   According to the invention of Patent Document 3, it is possible to reliably suppress the surface shake of the flexible optical disk, enable high-density recording, and prevent occurrence of problems such as sliding contact with the objective lens. On the other hand, in reality, complicated position adjustment control of the stabilizing guide member and the recording / reproducing head is required, which not only increases the load on the drive control system but also significantly increases the apparatus cost. End up.

本発明の目的は、前記課題を解決し、ディスク面上の任意半径方向の直線上における全域において良好なディスク面振れ特性を得ることができ、しかも空気力学的な作用力を発生させるための構成を簡略化することができる記録／再生装置およびディスクカートリッジを提供することにある。   An object of the present invention is to solve the above-mentioned problems, obtain a good disk surface run-out characteristic over the entire area on a straight line in an arbitrary radial direction on the disk surface, and to generate an aerodynamic working force Is to provide a recording / reproducing apparatus and a disk cartridge.

前記目的を達成するため、請求項１に記載の発明は、可撓性を有する記録ディスクの面内を、記録／再生手段が走査する動線に近接し、かつ前記記録ディスクの中心付近を通る直線によって２つの領域に分け、前記記録ディスク回転時に、前記領域の少なくとも一方に空気力学的な作用力を発生させる空気力学的作用手段を備えた記録／再生装置において、前記作用力として、前記記録ディスク面をディスク半径方向に傾ける第一の作用力と、前記記録ディスク面を前記直線に対して平行にさせる第二の作用力を発生させることを特徴とし、この構成によって、第一の作用力のみを作用させた場合と比べて、記録／再生手段が走査するディスク半径方向全域のディスク面振れを飛躍的に安定化できると共に、このディスク面振れを安定化した領域を略直線上に配置することができる。   In order to achieve the above object, according to the first aspect of the present invention, the flexible recording disk is in the vicinity of the flow line scanned by the recording / reproducing means and passes near the center of the recording disk. In a recording / reproducing apparatus having an aerodynamic action means for generating an aerodynamic action force in at least one of the areas when the recording disk rotates, the recording / reproducing apparatus includes the recording force as the action force. A first acting force that tilts the disk surface in the radial direction of the disk and a second acting force that causes the recording disk surface to be parallel to the straight line are generated. Compared with the case where only the recording / reproducing means is applied, the disc surface runout in the entire radial direction of the disc scanned by the recording / reproducing means can be remarkably stabilized and the disc surface runout is stabilized. It can be arranged to go to a substantially straight line.

請求項２に記載の発明は、請求項１記載の記録／再生装置において、第一の作用力と第二の作用力との発生側に対して記録ディスクを挟んで反対側に第三の作用力を発生させることを特徴とし、この構成によって、請求項１に記載の領域において、空気力学的な第三の作用力を作用させるだけで、容易に極めて小さなディスク面振れ特性を、ディスク半径方向の直線上において得ることができるようになる。また、第三の作用力は記録ディスクの片面に作用させるだけで十分な効果が得られ、特に記録ディスクの両面でディスクを挟み込むなどの構造が必要なくなるため、記録層を第三の作用力の作用面とは逆側に形成する構成にすれば、第三の作用力を発生させる手段と記録ディスクとの衝突により、記録情報が欠落してエラーが増大するなどの不具合の発生を避けることができる。   According to a second aspect of the present invention, in the recording / reproducing apparatus according to the first aspect, a third action is provided on the opposite side of the recording disk with respect to the generation side of the first acting force and the second acting force. With this configuration, it is possible to easily achieve extremely small disc surface runout characteristics in the radial direction of the disc simply by applying a third aerodynamic action force in the region according to claim 1. Can be obtained on the straight line. In addition, the third acting force can be obtained by simply acting on one side of the recording disk, and a structure such as sandwiching the disk between both sides of the recording disk is not necessary. If the structure is formed on the side opposite to the working surface, it is possible to avoid the occurrence of problems such as loss of recorded information and increased errors due to collision between the means for generating the third acting force and the recording disk. it can.

請求項３に記載の発明は、請求項１または２記載の記録／再生装置において、空気力学的作用手段における第一の作用力と第二の作用力を発生させる部位を一体化したことを特徴とし、この構成によって、第一，第二の作用力の相対位置を確実に固定することが可能となり、調整などが不要になり、また、作用力を発生させるための部品点数の削減，生産プロセスの簡易化により、コスト削減を図ることができる。   According to a third aspect of the present invention, in the recording / reproducing apparatus according to the first or second aspect, the first acting force and the second acting force generating portion in the aerodynamic acting means are integrated. This configuration makes it possible to securely fix the relative positions of the first and second acting forces, eliminating the need for adjustments, reducing the number of parts required to generate the acting force, and the production process. The cost can be reduced by simplifying the above.

請求項４に記載の発明は、請求項１〜３いずれか１項記載の記録／再生装置において、空気力学的作用手段を、第一の作用力を発生させる第一の安定化部材と、該第一の安定化部材以外の領域において第二の作用力を発生させる第二の安定化部材とによって構成し、第一の安定化部材を記録ディスクに対して反発力を発生させる構造とし、第二の安定化部材において、ディスク対向面の記録／再生手段の動線方向における断面の主形状を略直線状、かつこれに垂直な方向における断面の主形状を凹面形状としたことを特徴とし、この構成によって、効果的に、記録ディスク面をディスク半径方向に傾ける第一の作用力と、記録ディスク面を前記直線に対して平行にさせる第二の作用力を得ることができる。   According to a fourth aspect of the present invention, in the recording / reproducing apparatus according to any one of the first to third aspects, the aerodynamic acting means includes a first stabilizing member that generates a first acting force, A second stabilizing member that generates a second acting force in a region other than the first stabilizing member, and the first stabilizing member has a structure that generates a repulsive force against the recording disk. In the second stabilizing member, the main shape of the cross section in the flow direction of the recording / reproducing means on the disk facing surface is substantially linear, and the main shape of the cross section in the direction perpendicular thereto is a concave shape, With this configuration, it is possible to effectively obtain a first acting force for inclining the recording disk surface in the disk radial direction and a second acting force for making the recording disk surface parallel to the straight line.

請求項５に記載の発明は、請求項４記載の記録／再生装置において、第一の安定化部材と第二の安定化部材との設置側に対して記録ディスクを挟んで反対側に第四の作用力を発生させる第三の安定化部材を設置し、該第三の安定化部材において、ディスク対向面の記録／再生手段の動線方向における断面の主形状を略直線状、かつこれに垂直な方向における断面の主形状を凸面形状としたことを特徴とし、この構成によって、ディスク面全体の形状の安定性を得ることができると共に、前記直線付近の記録ディスク面の直線化効果を向上させることが可能となる。   According to a fifth aspect of the present invention, in the recording / reproducing apparatus according to the fourth aspect of the invention, a fourth is provided on the opposite side across the recording disk with respect to the installation side of the first stabilization member and the second stabilization member. A third stabilizing member for generating the acting force is provided, and in the third stabilizing member, the main shape of the cross section in the flow direction of the recording / reproducing means on the disk facing surface is substantially linear, and The main shape of the cross section in the vertical direction is a convex shape, and this configuration can provide stability of the shape of the entire disk surface and improve the straightening effect of the recording disk surface near the straight line It becomes possible to make it.

請求項６に記載の発明は、請求項４または５記載の記録／再生装置において、第一の安定化部材と第二の安定化部材とを一体化したことを特徴とし、この構成によって、部品設計の段階で、第一の安定化部材と第二の安定化部材との相対位置を固定することが可能となり、装置組み付け時の調整などが不要になる。また部品点数の削減、生産プロセスの簡易化によりコスト削減を図ることができる。   According to a sixth aspect of the present invention, in the recording / reproducing apparatus according to the fourth or fifth aspect, the first stabilizing member and the second stabilizing member are integrated. At the design stage, the relative position between the first stabilizing member and the second stabilizing member can be fixed, and adjustment during assembly of the device is not necessary. In addition, the cost can be reduced by reducing the number of parts and simplifying the production process.

請求項７に記載の発明は、請求項４記載の記録／再生装置において、記録／再生手段の設置側に対して記録ディスクを挟んだ反対側に、第三の作用力を発生させる第四の安定化部材を設置したことを特徴とし、この構成によって、第三の作用力をディスク面に作用させることにより、ディスク面振れを飛躍的に低減することができる。   According to a seventh aspect of the present invention, there is provided the recording / reproducing apparatus according to the fourth aspect, wherein a fourth acting force is generated on the opposite side of the recording / reproducing means with respect to the recording disk. A stabilizing member is provided. With this configuration, the third acting force is applied to the disk surface, so that the disk surface deflection can be drastically reduced.

請求項８に記載の発明は、請求項４記載の記録／再生装置において、記録／再生手段に記録ディスクに対して第三の作用力を発生させる第五の安定化部材を設けたことを特徴とし、この構成によって、第三の作用力をディスク面に作用させることにより、ディスク面振れを飛躍的に低減することができる。   The invention according to claim 8 is the recording / reproducing apparatus according to claim 4, wherein the recording / reproducing means is provided with a fifth stabilizing member for generating a third acting force on the recording disk. With this configuration, it is possible to drastically reduce the disc surface run-out by applying the third acting force to the disc surface.

請求項９に記載の発明は、可撓性を有する記録ディスクを収納し、該記録ディスクの面内を、記録／再生手段が走査する動線に近接し、かつ前記記録ディスクの中心付近を通る直線によって２つの領域に分け、前記記録ディスク回転時に、前記領域の少なくとも一方に空気力学的な作用力を発生させる空気力学的作用手段を備えたディスクカートリッジにおいて、前記空気力学的作用手段として、前記記録ディスク面をディスク半径方向に傾ける第一の作用力を発生させる第一の安定化部材と、該第一の安定化部材以外の領域において前記第二の作用力を発生させる第二の安定化部材とを備えたことを特徴とし、この構成によって、前記各請求項の作用効果を、記録／再生装置側の構成を簡略化して得ることができる。また、ディスクカートリッジごとに前記第一の安定化部材および第二の安定化部材を個別に設定することができることから、様々なディスク仕様ごとに第一の安定部材および第二の安定部材を個々に設計することが容易になって、ディスク仕様のばらつきによる安定化条件のずれを補正することが容易になる。   According to the ninth aspect of the invention, a flexible recording disk is accommodated, and the surface of the recording disk is close to the flow line scanned by the recording / reproducing means and passes through the vicinity of the center of the recording disk. In a disc cartridge provided with aerodynamic action means for generating an aerodynamic action force in at least one of the areas when the recording disk is rotated, the straight line is divided into two areas by a straight line. A first stabilizing member that generates a first acting force that tilts the recording disk surface in the radial direction of the disk, and a second stabilization that generates the second acting force in a region other than the first stabilizing member. With this configuration, the effects of the respective claims can be obtained by simplifying the configuration on the recording / reproducing apparatus side. Further, since the first stabilizing member and the second stabilizing member can be individually set for each disk cartridge, the first stabilizing member and the second stabilizing member are individually set for each of various disk specifications. It becomes easy to design, and it becomes easy to correct the deviation of the stabilization condition due to the variation of the disk specification.

請求項１０に記載の発明は、請求項９記載のディスクカートリッジにおいて、第一の安定化部材を記録ディスクに対して反発力を発生させる構造とし、第二の安定化部材において、ディスク対向面の記録／再生手段の動線方向における断面の主形状を略直線状、かつこれに垂直な方向における断面の主形状を凹面形状としたことを特徴とし、この構成によって、効果的に、記録ディスク面をディスク半径方向に傾ける第一の作用力と、記録ディスク面を前記直線に対して平行にさせる第二の作用力を得ることができる。   According to a tenth aspect of the present invention, in the disk cartridge according to the ninth aspect, the first stabilizing member is structured to generate a repulsive force against the recording disk, and the second stabilizing member has a structure of the disk facing surface. The main shape of the cross section in the direction of flow of the recording / reproducing means is substantially linear, and the main shape of the cross section in the direction perpendicular to this is a concave shape. Can be obtained, and a second acting force that makes the recording disk surface parallel to the straight line can be obtained.

請求項１１に記載の発明は、請求項９または１０記載のディスクカートリッジにおいて、第一の安定化部材と第二の安定化部材との設置側に対して記録ディスクを挟んで反対側に第四の作用力を発生させる第三の安定化部材を設置し、該第三の安定化部材において、ディスク対向面の記録／再生手段の動線方向における断面の主形状を略直線状、かつこれに垂直な方向における断面の主形状を凸面形状としたことを特徴とし、この構成によって、ディスク面全体の形状の安定性を得ることができると共に、前記直線付近の記録ディスク面の直線化効果を向上させることが可能となる。   According to an eleventh aspect of the present invention, there is provided a disc cartridge according to the ninth or tenth aspect, wherein the recording disk is sandwiched with respect to the installation side of the first stabilizing member and the second stabilizing member, and the fourth is arranged on the opposite side. A third stabilizing member for generating the acting force is provided, and in the third stabilizing member, the main shape of the cross section in the flow direction of the recording / reproducing means on the disk facing surface is substantially linear, and The main shape of the cross section in the vertical direction is a convex shape, and this configuration can provide stability of the shape of the entire disk surface and improve the straightening effect of the recording disk surface near the straight line It becomes possible to make it.

請求項１２に記載の発明は、請求項９〜１１いずれか１項記載のディスクカートリッジにおいて、前記第一の安定化部材と第二の安定化部材とを一体化したことを特徴とし、この構成によって、部品設計の段階で、第一の安定化部材と第二の安定化部材との相対位置を固定することが可能となり、装置組み付け時の調整などが不要になる。また部品点数の削減、生産プロセスの簡易化によりコスト削減を図ることができる。   According to a twelfth aspect of the present invention, in the disk cartridge according to any one of the ninth to eleventh aspects, the first stabilizing member and the second stabilizing member are integrated, and this configuration is provided. Thus, it becomes possible to fix the relative positions of the first stabilizing member and the second stabilizing member at the part design stage, and the adjustment at the time of assembling the apparatus becomes unnecessary. In addition, the cost can be reduced by reducing the number of parts and simplifying the production process.

請求項１３に記載の発明は、請求項９または１０記載のディスクカートリッジにおいて、記録／再生手段の設置側に対して記録ディスクを挟んだ反対側に、第三の作用力を発生させる第四の安定化部材を設置したことを特徴とし、この構成によって、第三の作用力をディスク面に作用させることにより、ディスク面振れを飛躍的に低減することができる。   According to a thirteenth aspect of the present invention, there is provided a disc cartridge according to the ninth or tenth aspect, wherein a fourth acting force is generated on the opposite side of the recording / reproducing means with respect to the recording disc. A stabilizing member is provided. With this configuration, the third acting force is applied to the disk surface, so that the disk surface deflection can be drastically reduced.

本発明に係る記録／再生装置およびディスクカートリッジによれば、記録ディスクの面内を、記録／再生手段が走査する動線に近接し、かつ前記記録ディスクの中心付近を通る直線Ａによって２つの領域に分け、前記記録ディスク回転時に、該領域の少なくとも一方に、空気力学的な作用力を発生させる機構を有する記録／再生装置において、前記作用力が、前記記録ディスク面をディスク半径方向に傾ける第一の作用力と、前記記録ディスク面を前記直線Ａに対して平行にさせる第二の作用力からなるようにしたことにより、第一の作用力のみを作用させた場合と比べて、記録／再生手段が走査するディスク半径方向全域のディスク面振れを飛躍的に安定化できると共に、このディスク面振れを安定化した領域を略直線上に配置することができた。この領域においては、簡単な構成により空気力学的な第三の作用力を作用させるだけで、容易に極めて小さなディスク面振れ特性を、ディスク半径方向の直線上において得ることができるようになった。これにより、ディスク面上の任意半径方向の直線上全域において良好なディスク面振れ特性を得ることができる、空気力学的な作用の構成動作を簡略化した記録／再生装置およびディスクカートリッジの提供を実現することができた。   According to the recording / reproducing apparatus and the disk cartridge of the present invention, two areas are defined by the straight line A that is close to the flow line that the recording / reproducing means scans in the surface of the recording disk and passes through the vicinity of the center of the recording disk. In a recording / reproducing apparatus having a mechanism for generating an aerodynamic acting force in at least one of the areas when the recording disk rotates, the acting force causes the recording disk surface to tilt the disk radial direction. Compared with the case where only the first acting force is applied, the first acting force and the second acting force that causes the recording disk surface to be parallel to the straight line A are used. It is possible to drastically stabilize the disc surface runout in the entire radial direction of the disc scanned by the reproducing means, and to arrange the area where the disc runout is stabilized on a substantially straight line. It came. In this region, it is possible to easily obtain extremely small disc surface run-out characteristics on a straight line in the disc radial direction only by applying a third aerodynamic acting force with a simple configuration. As a result, it is possible to provide a recording / reproducing apparatus and a disk cartridge which can obtain good disk surface run-out characteristics over the entire area on a straight line in an arbitrary radial direction on the disk surface, and which can simplify the aerodynamic configuration operation. We were able to.

本発明の概要について説明する。   The outline of the present invention will be described.

本発明に係る記録／再生装置における基本である、回転する記録ディスクに対して空気力学的な力を作用させた場合の現象に関して、各種実験を行い考察を行ったところ、記録ディスク面上の任意の部位に、記録ディスク面をディスク半径方向に傾けるような空気力学的な力（第一の作用力）を作用させた際には、作用させた部位からディスク回転方向の上下流側に約±９０度離れた付近の記録ディスク面に半径方向に向かう直線化力が付与されると共に、記録ディスク面の剛性が上がり、かつ記録ディスク面付近のディスク面振れが安定する現象を捕らえた。この現象を利用した記録／再生装置を試作して、各種実験を行い考察を行った。   As a result of various experiments and considerations regarding the phenomenon in the case where an aerodynamic force is applied to the rotating recording disk, which is the basis of the recording / reproducing apparatus according to the present invention, an arbitrary analysis on the surface of the recording disk is performed. When an aerodynamic force (first acting force) that inclines the recording disk surface in the radial direction of the disk is applied to the area of, approximately ± A linearizing force in the radial direction was applied to the recording disk surface near 90 degrees away, and the rigidity of the recording disk surface was increased, and the phenomenon that the disk surface vibration near the recording disk surface was stabilized was captured. A recording / reproducing apparatus using this phenomenon was prototyped and various experiments were conducted for consideration.

図１は前記試作した記録／再生装置の要部の平面図、図２は図１に示す装置の正面図であり、１は可撓性を有する記録ディスクである光ディスク、２は光ディスク１の回転中心（中央）部分に装着された光ディスク１を回転させるために保持する一方の保持部材のハブ、３は他方の保持部材であるチャッキング部をハブ２に嵌合して光ディスク１を回転駆動するスピンドルモータ、４は、光ディスク１の半径方向に移動して光ディスク１に対して光ビームを集光させ、情報の記録／再生処理を行うため光ディスク１に対して光走査（動線Ｒ方向）を行う記録／再生手段である光ピックアップである。   1 is a plan view of the main part of the prototype recording / reproducing apparatus, FIG. 2 is a front view of the apparatus shown in FIG. 1, 1 is an optical disk that is a flexible recording disk, and 2 is a rotation of the optical disk 1. A hub of one holding member that holds the optical disc 1 mounted at the center (center) portion for rotation, and a chucking portion that is the other holding member is fitted to the hub 2 to rotate the optical disc 1. The spindle motor 4 moves in the radial direction of the optical disc 1 to focus the light beam on the optical disc 1, and performs optical scanning (flow line R direction) on the optical disc 1 in order to perform information recording / reproduction processing. An optical pickup which is a recording / reproducing means to be performed.

さらに、３１は前記第一の作用力をディスク面に作用させるための第一の安定化部材である。本試作機においては、光ピックアップ４の動線Ｒに近接し、光ディスク１の中心付近を通る直線Ａにより２つに分けたディスク面の領域Ｓ１，Ｓ２に、それぞれ空気力学的な力を作用させる構成とした。   Further, 31 is a first stabilizing member for causing the first acting force to act on the disk surface. In this prototype, an aerodynamic force is applied to each of the areas S1 and S2 on the disk surface divided into two by a straight line A that is close to the flow line R of the optical pickup 4 and passes near the center of the optical disk 1. The configuration.

この試作機により、前記直線Ａ付近の光ディスク面全域（光ピックアップ動線Ｒ付近に限らず、動線Ｒから１８０度ずれた位置も含む）において、ディスク面振れが安定化する現象が実証された。さらに検討を重ねた結果、光ディスク面を前記直線Ａに対して平行にさせる第二の作用力を作用させることにより、ディスク面の直線化効果と面振れ抑制効果が向上することが新たに判明した。   This prototype demonstrated the phenomenon that the disc surface runout is stabilized over the entire optical disc surface near the straight line A (not only in the vicinity of the optical pickup flow line R, but also including a position shifted by 180 degrees from the flow line R). . As a result of further studies, it has been newly found that the effect of straightening the disk surface and suppressing the surface run-out can be improved by applying a second acting force that makes the optical disk surface parallel to the straight line A. .

前記第一の作用力と第二の作用力とを複合させて作用させることにより奏される前記直線Ａ付近の記録ディスク面の直線化効果，剛性向上効果、および面振れ抑制効果により、前記直線Ａ付近のディスク面において、ディスク面振れを安定させた直線状領域が得られるようになり、前記直線Ａ付近における第三の作用力による効果的なディスク面振れの安定化を、何ら複雑な制御機構を用いることなく、容易に前記直線Ａ付近の直線上において実現することができた。   Due to the effect of straightening the recording disk surface near the straight line A, the effect of improving the rigidity, and the effect of suppressing the surface deflection, the straight line can be obtained by combining the first acting force and the second acting force. In the disk surface in the vicinity of A, a linear region in which the disk surface vibration is stabilized can be obtained, and the stabilization of the effective disk surface vibration by the third acting force in the vicinity of the straight line A is complicatedly controlled. It could be easily realized on a straight line near the straight line A without using a mechanism.

以下、本発明の実施の形態について説明する。   Embodiments of the present invention will be described below.

図３は本発明の実施形態１を説明するための記録／再生装置の要部の正面図である。なお、以下の説明において、既に説明した部材に対応する部材には同一符号を付して説明する。   FIG. 3 is a front view of the main part of the recording / reproducing apparatus for explaining the first embodiment of the present invention. In the following description, members corresponding to those already described are denoted by the same reference numerals.

図３において、１は可撓性を有する記録ディスクである光ディスク、２は光ディスク１の回転中心（中央）部分に装着された光ディスク１を回転させるために保持する一方の保持部材であるハブ、３は他方の保持部材であるチャッキング部をハブ２に嵌合して光ディスク１を回転駆動するスピンドルモータ、４は、光ディスク１の半径方向に移動して光ディスク１に対して光ビームを集光させ、情報の記録／再生処理を行うため光ディスク１に対して光走査（動線Ｒ方向）を行う記録／再生手段である光ピックアップ、１０は記録／再生装置における装置本体の筐体である。   In FIG. 3, 1 is an optical disk that is a flexible recording disk, 2 is a hub that is one holding member for holding the optical disk 1 mounted on the rotation center (center) portion of the optical disk 1 for rotation, The spindle motor 4 that rotates the optical disk 1 by fitting the chucking portion, which is the other holding member, to the hub 2, moves in the radial direction of the optical disk 1 to focus the optical beam on the optical disk 1. An optical pickup 10 is a recording / reproducing means for performing optical scanning (direction of flow line R) with respect to the optical disc 1 in order to perform information recording / reproducing processing.

さらに、３１は第一の空気力学的な作用力をディスク面に作用させるための第一の安定化部材、３２は、第一の安定化部材３１と一体に形成され、第二の空気力学的な作用力をディスク面に作用させるための第二の安定化部材、３０は、光ピックアップ４と光ディスク１を挟んで対向設置され、第三の空気力学的な作用力をディスク面に作用させるための第四の安定化部材である。   Further, 31 is a first stabilizing member for causing the first aerodynamic acting force to act on the disk surface, and 32 is formed integrally with the first stabilizing member 31, and the second aerodynamics is formed. The second stabilizing member 30 for causing a large acting force to act on the disc surface is disposed opposite to the optical pickup 4 and the optical disc 1 so that the third aerodynamic acting force acts on the disc surface. This is a fourth stabilizing member.

図３に示す記録／再生装置の構成では装置本体の筺体１０に、第一の安定化部材３１と第二の安定化部材３２を設けた構成について説明したが、図４に示す記録／再生装置の断面図のように、第一の安定化部材３１と第二の安定化部材３２をディスクカートリッジ１１に設けてもよい。また、図５，図６は図４におけるカートリッジの構成を示す図であって、図５はカートリッジの平面図、図６は図５におけるＡ−Ａ一部断面図である。   In the configuration of the recording / reproducing apparatus shown in FIG. 3, the configuration in which the first stabilizing member 31 and the second stabilizing member 32 are provided in the housing 10 of the apparatus main body has been described. However, the recording / reproducing apparatus shown in FIG. The first stabilizing member 31 and the second stabilizing member 32 may be provided in the disc cartridge 11 as shown in the sectional view of FIG. 5 and 6 are diagrams showing the configuration of the cartridge in FIG. 4, FIG. 5 is a plan view of the cartridge, and FIG. 6 is a partial cross-sectional view along AA in FIG.

図５，図６において、１２は第四の安定化部材３０が挿入され、ディスク半径方向に移動可能にするための第１の通孔部、１３は光ピックアップ４およびスピンドルモータ３の一部が挿入され、かつ光ピックアップ４をディスク半径方向に移動可能にするための第２の通孔部である。なお、前記通孔部１２，１３を開閉するためのシャッタ、あるいはカートリッジ内で光ディスク１を固定するための機構、さらにカートリッジをスピンドルモータ３に設置する際に必要なその他の機構などに関しては図示していない。   5 and 6, reference numeral 12 denotes a first through hole for allowing the fourth stabilizing member 30 to be inserted and movement in the radial direction of the disk, and 13 denotes a part of the optical pickup 4 and the spindle motor 3. This is a second through hole that is inserted and allows the optical pickup 4 to move in the radial direction of the disk. A shutter for opening and closing the through holes 12 and 13, a mechanism for fixing the optical disc 1 in the cartridge, and other mechanisms necessary for installing the cartridge in the spindle motor 3 are shown in the figure. Not.

図７は本発明の実施形態２を説明するための記録／再生装置の要部の正面図である。実施形態２において実施形態１と異なる構成は、前記第一の安定化部材３１と第二の安定化部材３２に光ディスク１を介して対向配設されて、第四の空気力学的な作用力をディスク面に作用させるための第三の安定化部材３３を設けた点である。   FIG. 7 is a front view of the main part of the recording / reproducing apparatus for explaining the second embodiment of the present invention. The second embodiment is different from the first embodiment in that the first stabilizing member 31 and the second stabilizing member 32 are arranged to face each other with the optical disc 1 therebetween, and a fourth aerodynamic acting force is provided. This is the point that a third stabilizing member 33 for acting on the disk surface is provided.

実施形態２において、図７に示す記録／再生装置の構成では装置本体の筺体１０内に、第一の安定化部材３１と第二の安定化部材３２と第三の安定化部材３３とを設けた構成について説明したが、図８に示す記録／再生装置の断面図のように、第一の安定化部材３１と第二の安定化部材３２と第三の安定化部材３３とをディスクカートリッジ１１に設けるようにしてもよい。また、図９，図１０は図８におけるカートリッジの構成を示す図であって、図９はカートリッジの平面図、図１０は図９におけるＡ−Ａ一部断面図である。   In the second embodiment, in the configuration of the recording / reproducing apparatus shown in FIG. 7, a first stabilizing member 31, a second stabilizing member 32, and a third stabilizing member 33 are provided in the housing 10 of the apparatus body. The first stabilizing member 31, the second stabilizing member 32, and the third stabilizing member 33 are connected to the disk cartridge 11 as shown in the sectional view of the recording / reproducing apparatus shown in FIG. You may make it provide in. 9 and 10 are diagrams showing the configuration of the cartridge in FIG. 8, wherein FIG. 9 is a plan view of the cartridge, and FIG. 10 is a partial cross-sectional view along AA in FIG.

前記各実施形態について具体的に説明する。   Each said embodiment is described concretely.

図３〜図６に示す実施形態１に係る構成では、第一の安定部材３１と、第二の安定化部材３２の作用により、光ピックアップ４が走査するディスク半径方向全域のディスク面振れを安定化することができると共に、このディスク面振れを安定化した領域を略直線上に配置することができた。これにより、第四の安定化部材３０などの簡単な構成の機構により空気力学的な第三の作用力を光ディスク１に作用させるだけで、容易に極めて小さなディスク面振れ特性を、ディスク半径方向の直線Ａ上において得ることができるようになった。   In the configuration according to the first embodiment shown in FIG. 3 to FIG. 6, the disc surface runout in the entire disc radial direction scanned by the optical pickup 4 is stabilized by the action of the first stabilizing member 31 and the second stabilizing member 32. The area where the disk surface runout was stabilized could be arranged on a substantially straight line. As a result, an extremely small disk runout characteristic can be easily achieved in the radial direction of the disk simply by applying a third aerodynamic force to the optical disk 1 by a mechanism having a simple configuration such as the fourth stabilizing member 30. It can be obtained on the straight line A.

また、図７〜図１０に示す実施形態２に係る構成では、第一の安定部材３１と、第二の安定化部材３２の作用により、光ピックアップ４が走査するディスク半径方向全域のディスク面振れを安定化させることができると共に、このディスク面振れが安定化した領域を略直線Ａ上に配置することができ、さらに第三の安定化部材３３の光ディスク１に対する作用により、ディスク面全体の形状安定性を得ることができると共に、ディスク面振れを安定化した前記領域の直線化効果を向上させることができた。これにより、実施形態１の効果をさらに向上させることができた。   Further, in the configuration according to the second embodiment shown in FIGS. 7 to 10, the disk surface runout in the entire disk radial direction scanned by the optical pickup 4 is caused by the action of the first stabilizing member 31 and the second stabilizing member 32. Can be arranged on the substantially straight line A, and the action of the third stabilizing member 33 on the optical disk 1 allows the shape of the entire disk surface to be stabilized. Stability can be obtained, and the linearization effect of the region where the disc surface run-out is stabilized can be improved. Thereby, the effect of Embodiment 1 was able to be improved further.

以下、実施形態２に係るディスクカートリッジの変形例について説明する。しかし、以下に説明する変形例の構成は、第三の安定化部材３３を具備しない実施形態１においても適用できる構成であり、また、ディスクカートリッジを使用しない記録／再生装置においても適用可能である。   Hereinafter, modifications of the disk cartridge according to the second embodiment will be described. However, the configuration of the modified example described below is applicable to the first embodiment that does not include the third stabilizing member 33, and can also be applied to a recording / reproducing apparatus that does not use a disk cartridge. .

図１１に示す実施形態２の変形例１では、第三の作用力を発生させるための第五の安定化部材３５を、第三の安定化部材３３に形成した移動用溝３３ａ内で、かつ第一の安定部材３１と第二の安定化部材３２に対して光ディスク１を介して対向設置される光ピックアップ４の上面側に形成している。   In Modification 1 of Embodiment 2 shown in FIG. 11, the fifth stabilizing member 35 for generating the third acting force is disposed in the moving groove 33 a formed in the third stabilizing member 33, and The first stabilizing member 31 and the second stabilizing member 32 are formed on the upper surface side of the optical pickup 4 that is disposed to face the first stabilizing member 31 through the optical disc 1.

図１２，図１３は図１１の変形例１におけるディスクカートリッジ１１の構成を示す図であって、図１２はカートリッジの平面図、図１３は図１２におけるＡ−Ａ一部断面図であり、第五の安定化部材３５が上面に形成された光ピックアップ４のディスク半径方向への移動を可能にするため、第三の安定化部材３３に移動用溝３３ａを形成している。   12 and 13 are diagrams showing the configuration of the disk cartridge 11 in the first modification of FIG. 11, in which FIG. 12 is a plan view of the cartridge, FIG. 13 is a partial cross-sectional view along AA in FIG. In order to enable movement of the optical pickup 4 having the five stabilizing members 35 formed on the upper surface in the disk radial direction, a movement groove 33a is formed in the third stabilizing member 33.

図１４，図１５は実施形態２の変形例２におけるディスクカートリッジ１１の構成を示す図であって、図１４はカートリッジの平面図、図１５は図１４におけるＡ−Ａ一部断面図であり、変形例２においては、第一の安定化部材３１と第二の安定化部材３２を光ディスク１の半面のみに配置した構成を採用している。   14 and 15 are diagrams showing a configuration of the disk cartridge 11 in the second modification of the second embodiment, in which FIG. 14 is a plan view of the cartridge, and FIG. 15 is a partial cross-sectional view along AA in FIG. In the second modification, a configuration in which the first stabilizing member 31 and the second stabilizing member 32 are disposed only on the half surface of the optical disc 1 is employed.

図１６，図１７は実施形態２の変形例３におけるディスクカートリッジ１１の構成を示す図であって、図１６はカートリッジの平面図、図１７は図１６におけるＡ−Ａ一部断面図であり、変形例３においては、第四の安定化部材３０として、光ディスク１の対向面の光ピックアップ４の動線方向断面の主形状を直線状、かつこれに垂直な方向の断面を凸曲面形状として、ディスク半径方向に延在させた構成を採用している。   16 and 17 are views showing a configuration of the disk cartridge 11 according to the third modification of the second embodiment, in which FIG. 16 is a plan view of the cartridge, and FIG. 17 is a partial cross-sectional view along AA in FIG. In Modification 3, as the fourth stabilizing member 30, the main shape of the cross section in the flow line direction of the optical pickup 4 on the opposite surface of the optical disc 1 is linear, and the cross section in the direction perpendicular thereto is a convex curved surface shape. A configuration extending in the radial direction of the disk is adopted.

図１８，図１９は実施形態２の変形例４におけるディスクカートリッジ１１の構成を示す図であって、図１８はカートリッジの平面図、図１９は図１８におけるＡ−Ａ一部断面図であり、変形例４においては、光ディスク１の面内を、光ピックアップ４が走査する動線に近接し、かつ光ディスク１の中心Ｏ付近を通る直線Ａを起点として、略４５度間隔で８つの領域（Ａ，Ｂ，Ｃ，Ｄ，Ｅ，Ｆ，Ｇ，Ｈ）に分け、前記起点から略４５度〜略９０度の領域Ｂ内、および前記起点から略９０度〜略１３５度の領域Ｃ内、および前記起点から略２２５度〜略２７０度の領域Ｆ内、および前記起点から略２７０度〜略３１５度の領域Ｇ内における前記記録ディスクが可撓性を呈する部位に、それぞれ第一の安定化部材３１を１つ存在させる構成としたものである。   18 and 19 are diagrams showing a configuration of the disk cartridge 11 in the fourth modification of the second embodiment, in which FIG. 18 is a plan view of the cartridge, and FIG. 19 is a partial cross-sectional view along AA in FIG. In the fourth modification, eight regions (A) are spaced at approximately 45 degrees intervals starting from a straight line A that is close to the flow line scanned by the optical pickup 4 and passes through the vicinity of the center O of the optical disc 1 in the plane of the optical disc 1. , B, C, D, E, F, G, H), in a region B of approximately 45 degrees to approximately 90 degrees from the starting point, and in a region C of approximately 90 degrees to approximately 135 degrees from the starting point, and A first stabilizing member is provided at a portion where the recording disk exhibits flexibility in a region F of approximately 225 degrees to approximately 270 degrees from the starting point and in a region G of approximately 270 degrees to approximately 315 degrees from the starting point. It was configured to have one 31 Than it is.

図２０は実施形態２の変形例５における記録／再生装置の構成を示す断面図であって、第五の安定化部材３５を端面に形成した光ピックアップ４を、第一の安定化部材３１と第二の安定化部材３２の設置側と同じ側に、ディスク半径方向に移動可能に設けたものである。   FIG. 20 is a cross-sectional view showing the configuration of the recording / reproducing apparatus in the fifth modification of the second embodiment. The optical pickup 4 having the fifth stabilizing member 35 formed on the end face is connected to the first stabilizing member 31. It is provided on the same side as the installation side of the second stabilizing member 32 so as to be movable in the disk radial direction.

なお、変形例を含む、前記全ての実施形態においては、第一の安定化部材３１と第二の安定化部材３２とを一体化して１つの安定化部材として構成することが可能であり、また、第四の安定化部材３０を、第一の安定化部材３１と第二の安定化部材３２の設置側に対して、光ディスク１を挟んで逆側に配置してもよい。   In all the embodiments including the modification, it is possible to integrate the first stabilization member 31 and the second stabilization member 32 as one stabilization member, and The fourth stabilization member 30 may be disposed on the opposite side of the optical disc 1 with respect to the installation side of the first stabilization member 31 and the second stabilization member 32.

図２１〜図２３は実施形態２の変形例６を示す図であって、図２１は記録／再生装置の断面図、図２２は該記録／再生装置で用いているディスクカートリッジの平面図、図２３は図２２におけるＡ−Ａ一部断面図である。   21 to 23 are views showing a sixth modification of the second embodiment, in which FIG. 21 is a cross-sectional view of a recording / reproducing apparatus, FIG. 22 is a plan view of a disk cartridge used in the recording / reproducing apparatus, and FIG. 23 is a partial cross-sectional view taken along line AA in FIG.

変形例６では、図８〜図１０に示す実施形態２において第二の安定化部材３２に突出させて設けた第一の安定化部材３１をなくして、第二の安定化部材３２の下面（光ディスク１側）を単純な湾曲面３２ａの形状とし、この湾曲面３２ａの傾斜部において第一の作用力と第二の作用力の両方の発生機能を担わせている。変形例６における安定化部材は、既述した第二の安定化部材３２がベースとなっていることから、第二の安定化部材と称す。   In the modified example 6, the first stabilizing member 31 provided to protrude from the second stabilizing member 32 in the second embodiment shown in FIGS. 8 to 10 is eliminated, and the lower surface of the second stabilizing member 32 ( The optical disk 1 side) has a simple curved surface 32a, and the inclined portion of the curved surface 32a has a function of generating both the first acting force and the second acting force. The stabilizing member in Modification 6 is referred to as a second stabilizing member because the second stabilizing member 32 described above is the base.

図２４〜図２６は実施形態２の変形例７を示す図であって、図２４は記録／再生装置の断面図、図２５は該記録／再生装置で用いているディスクカートリッジの平面図、図２６は図２５におけるＡ−Ａ一部断面図である。   24 to 26 are diagrams showing a seventh modification of the second embodiment, in which FIG. 24 is a cross-sectional view of a recording / reproducing apparatus, FIG. 25 is a plan view of a disk cartridge used in the recording / reproducing apparatus, and FIG. 26 is a partial cross-sectional view taken along line AA in FIG.

変形例７では、変形例６と同様に第二の安定化部材３２の下面を単純な湾曲面３２ａの形状とし、この湾曲面３２ａの傾斜部に第一の作用力と第二の作用力の両方の発生機能を担わせ、さらに第三の作用力の発生機能を、湾曲面３２ａの稜線部分（第二の安定化部材３２の中心孔）に担わせている。変形例７においても、安定化部材は既述した第二の安定化部材３２がベースとなっていることから、第二の安定化部材と称す。   In the modified example 7, similarly to the modified example 6, the lower surface of the second stabilizing member 32 has a simple curved surface 32a, and the first acting force and the second acting force are applied to the inclined portion of the curved surface 32a. Both generation functions are assigned, and the generation function of the third acting force is assigned to the ridge line portion of the curved surface 32a (the central hole of the second stabilization member 32). Also in Modification 7, the stabilizing member is referred to as the second stabilizing member because the second stabilizing member 32 described above is the base.

以下、本発明を実施例および比較例に基づいてより具体的に説明する。   Hereinafter, the present invention will be described more specifically based on examples and comparative examples.

（実施例１）
実施例１において、図４〜図６に示す構成を採用した。第一，第二の安定化部材３１，３２を複合させた形状は３次元の複雑形状であり、その面形状を厳密には言い表せないが、本発明の効果を奏するための主な形状要素は以下の通りである。 Example 1
In Example 1, the structure shown in FIGS. 4 to 6 was adopted. The shape in which the first and second stabilizing members 31 and 32 are combined is a three-dimensional complex shape, and the surface shape cannot be expressed strictly, but the main shape element for achieving the effect of the present invention is It is as follows.

まず、第一の安定化部材３１は光ディスク（直径１２０ｍｍ）１に対向する面を曲率半径２００ｍｍとし、光ディスク１に対向する面の形状を直径２５ｍｍの略円状とした。また、第二の安定化部材３２は、光ディスク１の対向面の光ピックアップ４の動線方向断面の主形状を直線状、かつこれに垂直な方向の断面が曲率半径（２５０ｍｍ）の凹面形状とした。   First, the surface of the first stabilizing member 31 facing the optical disc (diameter 120 mm) 1 has a curvature radius of 200 mm, and the shape of the surface facing the optical disc 1 has a substantially circular shape with a diameter of 25 mm. Further, the second stabilizing member 32 has a linear shape as a main shape of the cross section in the flow line direction of the optical pickup 4 on the opposite surface of the optical disc 1 and a concave shape with a radius of curvature (250 mm) in a direction perpendicular thereto. did.

また、実施例１では、ディスク基板として直径１２０ｍｍ，厚さ７５μｍのポリカーボネイト製シートを用いた。ディスクを準備するにあたっては、まず、前記シートに、熱転写でスタンパのピッチ０.６μｍ、幅０．３μｍのグルーブを転写し、その後、スパッタリングでシート／Ａｇ反射層 １２０ｎｍ／（ＺｒＯ２−Ｙ２Ｏ３）−ＳｉＯ２ ７ｎｍ／ＡｇＩｎＳｂＴｅＧｅ １０ｎｍ／ＺｎＳ−ＳｉＯ２ ２５ｎｍ／Ｓｉ３Ｎ４ １０ｎｍの順番に成膜した。情報記録領域は内周直径４０ｍｍから外周直径１１８ｍｍまで（半径２０ｍｍ〜５８ｍｍ）の範囲に設定した。その後、ＵＶ樹脂をスピンコートし、紫外線照射で硬化させて厚さ５μｍの透明保護膜を形成した。また、逆側の面には１０μｍ厚のハードコートを施した。なお、このディスク中心部には外形直径３０ｍｍ，内径直径１５ｍｍ、厚み０.３ｍｍのハブ２を取り付けた。このディスクの仕上がり状態はハードコート側に僅かに反った形状となった。 In Example 1, a polycarbonate sheet having a diameter of 120 mm and a thickness of 75 μm was used as the disk substrate. In preparing the disk, first, a groove having a stamper pitch of 0.6 μm and a width of 0.3 μm was transferred to the sheet by thermal transfer, and then a sheet / Ag reflection layer 120 nm / (ZrO 2 —Y 2 O) by sputtering. 3) it was formed in the order of -SiO 2 7nm / AgInSbTeGe 10nm / ZnS -SiO 2 25nm / Si 3 N 4 10nm. The information recording area was set in a range from an inner diameter of 40 mm to an outer diameter of 118 mm (radius 20 mm to 58 mm). Thereafter, a UV resin was spin-coated and cured by ultraviolet irradiation to form a transparent protective film having a thickness of 5 μm. Further, a hard coat having a thickness of 10 μm was applied to the opposite surface. A hub 2 having an outer diameter of 30 mm, an inner diameter of 15 mm, and a thickness of 0.3 mm was attached to the center of the disk. The finished state of the disk was slightly warped toward the hard coat side.

前記光ディスク１を、１５ｍ／ｓｅｃのディスク回転数で回転させ、第一，第二の安定化部材３１，３２を光ディスク１に作用させた。この状態で第四の安定化部材３０をディスク半径方向に走査(半径２５ｍｍ，４０ｍｍ，５５ｍｍの３水準)させ、光ピックアップ４の位置にレーザ変位計を配置してディスク面振れを評価した。この際、第四の安定化部材３０のディスク回転軸方向の位置は、光ディスク基準面(光ディスクが平坦と仮定した場合の第四の安定化部材側の面)に固定した。   The optical disc 1 was rotated at a disc rotational speed of 15 m / sec, and the first and second stabilizing members 31 and 32 were applied to the optical disc 1. In this state, the fourth stabilizing member 30 was scanned in the radial direction of the disk (three levels of radius 25 mm, 40 mm, and 55 mm), and a laser displacement meter was placed at the position of the optical pickup 4 to evaluate the disk runout. At this time, the position of the fourth stabilizing member 30 in the disc rotation axis direction was fixed to the optical disc reference surface (the surface on the fourth stabilizing member side when the optical disc was assumed to be flat).

（実施例２）
実施例２において、図８〜図１０に示す構成を採用した。第一，第二の安定化部材３１，３２については実施例１と同様とした。第三の安定化部材３３については、光ディスク１の対向面の光ピックアップ４の動線方向断面の主形状を直線状、かつこれに垂直な方向の断面が曲率半径（２５０ｍｍ）の凸面形状とした。 (Example 2)
In Example 2, the configuration shown in FIGS. 8 to 10 was adopted. The first and second stabilizing members 31 and 32 were the same as those in Example 1. For the third stabilizing member 33, the main shape of the cross section in the flow line direction of the optical pickup 4 on the opposite surface of the optical disc 1 is a linear shape, and the cross section in the direction perpendicular thereto is a convex shape having a radius of curvature (250 mm). .

光ディスク１は実施例１と同様のものを用い、光ディスク１を、１５ｍ／ｓｅｃのディスク回転数で回転させ、第一〜第三の安定化部材３１〜３３を光ディスク１に作用させた。この状態で第四の安定化部材３０をディスク半径方向に走査(半径２５ｍｍ，４０ｍｍ，５５ｍｍの３水準)させ、光ピックアップ４の位置にレーザ変位計を配置してディスク面振れを評価した。この際、第四の安定化部材３０のディスク回転軸方向の位置は、光ディスク基準面(光ディスクが平坦と仮定した場合の第四の安定化部材側の面)に固定した。   The same optical disk 1 as in Example 1 was used. The optical disk 1 was rotated at a disk rotational speed of 15 m / sec, and the first to third stabilizing members 31 to 33 were applied to the optical disk 1. In this state, the fourth stabilizing member 30 was scanned in the radial direction of the disk (three levels of radius 25 mm, 40 mm, and 55 mm), and a laser displacement meter was placed at the position of the optical pickup 4 to evaluate the disk runout. At this time, the position of the fourth stabilizing member 30 in the disc rotation axis direction was fixed to the optical disc reference surface (the surface on the fourth stabilizing member side when the optical disc was assumed to be flat).

（実施例３）
実施例３において、図１１〜図１３に示す構成を採用した。第一〜第三の安定化部材３１〜３３については実施例２と同様とした。 (Example 3)
In Example 3, the configuration shown in FIGS. 11 to 13 was adopted. The first to third stabilizing members 31 to 33 were the same as those in Example 2.

光ディスク１は実施例１と同様のものを用いた。光ディスク１を１５ｍ／ｓｅｃのディスク回転数で回転させ、第一〜第三の安定化部材３１〜３３を光ディスク１に作用させた。この状態で第五の安定化部材３５を形成した光ピックアップ４を、フォーカスサーボをかけた状態でディスク半径方向に走査(半径２５ｍｍ，４０ｍｍ，５５ｍｍの３水準)させ、フォーカス位置でのディスク面振れをレーザ変位計により計測した。なお、レーザ変位計による計測のため、ディスクカートリッジ１１を透明部材により作製し、ディスク面振れ計測はディスクカートリッジ１１を透過することにより実施した。この際、第五の安定化部材３５のディスク回転軸方向の位置は、光ディスク基準面(光ディスクが平坦と仮定した場合の第五の安定化部材側の面)に固定した。   The same optical disk 1 as in Example 1 was used. The optical disc 1 was rotated at a disc rotational speed of 15 m / sec, and the first to third stabilizing members 31 to 33 were applied to the optical disc 1. In this state, the optical pickup 4 on which the fifth stabilizing member 35 is formed is scanned in the radial direction of the disc with the focus servo applied (three levels of radius 25 mm, 40 mm, and 55 mm), and the disc surface shakes at the focus position. Was measured with a laser displacement meter. For measurement with a laser displacement meter, the disk cartridge 11 was made of a transparent member, and the disk surface deflection measurement was performed by passing through the disk cartridge 11. At this time, the position of the fifth stabilizing member 35 in the disc rotation axis direction was fixed to the optical disc reference surface (the surface on the fifth stabilizing member side when the optical disc is assumed to be flat).

（実施例４）
実施例４において、図２１〜図２３に示す構成を採用した。第二の安定化部材３２は、光ディスク１の対向面の光ピックアップ４の動線方向断面の主形状を直線状、かつこれに垂直な方向の断面が曲率半径（１０００ｍｍ）の凹面形状とした。また、第三の安定化部材３３は、光ディスク１の対向面の光ピックアップ４の動線方向断面の主形状を直線状、かつこれに垂直な方向の断面が曲率半径（１０００ｍｍ）の凸面形状とした。 Example 4
In Example 4, the configuration shown in FIGS. 21 to 23 was adopted. In the second stabilizing member 32, the main shape of the cross section in the flow line direction of the optical pickup 4 on the opposite surface of the optical disc 1 is a linear shape, and the cross section in the direction perpendicular to the main shape is a concave shape with a radius of curvature (1000 mm). The third stabilizing member 33 is a convex shape having a linear shape in the cross section in the flow line direction of the optical pickup 4 on the opposite surface of the optical disc 1 and a curvature radius (1000 mm) in the cross section perpendicular thereto. did.

光ディスク１は実施例１と同様のものを用い、光ディスク１を、１５ｍ／ｓｅｃのディスク回転数で回転させ、第二，第三の安定化部材３２，３３を光ディスク１に作用させた。この状態で第四の安定化部材３０をディスク半径方向に走査(半径２５ｍｍ，４０ｍｍ，５５ｍｍの３水準)させ、光ピックアップ４の位置にレーザ変位計を配置してディスク面振れを評価した。この際、第四の安定化部材３０のディスク回転軸方向の位置は、光ディスク基準面(光ディスクが平坦と仮定した場合の第四の安定化部材側の面)に固定した。   The same optical disk 1 as in Example 1 was used. The optical disk 1 was rotated at a disk rotational speed of 15 m / sec, and the second and third stabilizing members 32 and 33 were applied to the optical disk 1. In this state, the fourth stabilizing member 30 was scanned in the radial direction of the disk (three levels of radius 25 mm, 40 mm, and 55 mm), and a laser displacement meter was placed at the position of the optical pickup 4 to evaluate the disk runout. At this time, the position of the fourth stabilizing member 30 in the disc rotation axis direction was fixed to the optical disc reference surface (the surface on the fourth stabilizing member side when the optical disc was assumed to be flat).

（実施例５）
実施例５において、図２４〜図２６に示す構成を採用した。第二の安定化部材３２は、光ディスク１の対向面の光ピックアップ４の動線方向断面の主形状を直線状、かつこれに垂直な方向の断面が曲率半径（１０００ｍｍ）の凹面形状とした。また、第三の安定化部材３３は、光ディスク１の対向面の光ピックアップ４の動線方向断面の主形状を直線状、かつこれに垂直な方向の断面が曲率半径（１０００ｍｍ）の凸面形状とした。 (Example 5)
In Example 5, the configuration shown in FIGS. 24 to 26 was adopted. In the second stabilizing member 32, the main shape of the cross section in the flow line direction of the optical pickup 4 on the opposite surface of the optical disc 1 is a linear shape, and the cross section in the direction perpendicular to the main shape is a concave shape with a radius of curvature (1000 mm). The third stabilizing member 33 is a convex shape having a linear shape in the cross section in the flow line direction of the optical pickup 4 on the opposite surface of the optical disc 1 and a curvature radius (1000 mm) in the cross section perpendicular thereto. did.

光ディスク１は実施例１と同様のものを用い、光ディスク１を、１５ｍ／ｓｅｃのディスク回転数で回転させ、第二，第三の安定化部材３２，３３を光ディスク１に作用させた。この状態で光ピックアップ４の位置にレーザ変位計を配置してディスク面振れを評価した。評価半径位置は半径２５ｍｍ，４０ｍｍ，５５ｍｍの３水準とした。この際、第二の安定化部材３２のディスク回転軸方向の位置は、第二の安定化部材３２の稜線が光ディスク基準面(光ディスクが平坦と仮定した場合の第二の安定化部材側の面)から１００μｍ離れた位置となるように設定した。   The same optical disk 1 as in Example 1 was used. The optical disk 1 was rotated at a disk rotational speed of 15 m / sec, and the second and third stabilizing members 32 and 33 were applied to the optical disk 1. In this state, a laser displacement meter was placed at the position of the optical pickup 4 to evaluate disc surface vibration. The evaluation radius position was set to three levels of radius 25 mm, 40 mm, and 55 mm. At this time, the position of the second stabilizing member 32 in the disc rotation axis direction is such that the ridge line of the second stabilizing member 32 is the optical disc reference surface (the surface on the second stabilizing member side when the optical disc is assumed to be flat). ) To be 100 μm away.

（比較例）
比較例の構成は図２７の平面図，図２８の正面図に示す構成のものであって、円筒状の安定化部材３６を１つだけ用いた構成である。安定化部材３６は、光ディスク１に対向する端面を曲率半径１００ｍｍとし、平面視直径１０ｍｍの円柱状の形状とした。 (Comparative example)
The configuration of the comparative example is the configuration shown in the plan view of FIG. 27 and the front view of FIG. 28, and uses only one cylindrical stabilizing member 36. The stabilizing member 36 has a cylindrical shape with a radius of curvature of 100 mm at the end surface facing the optical disc 1 and a diameter in plan view of 10 mm.

なお、ここでは説明するための必要最小限の構成を図示するに留め、制御系などの詳細については図示しないが、安定化部材３６にはディスク半径方向の移動機構を具備させた。   It should be noted that only the minimum necessary configuration for explanation is shown here, and details of the control system and the like are not shown, but the stabilizing member 36 is provided with a moving mechanism in the disk radial direction.

前記構成の比較例において、実施例１と同様のディスクを１５ｍ／ｓｅｃのディスク回転数で回転させた。その後、安定化部材３６を、その作用面がディスク基準面近傍となるように配置して、ディスク半径方向を移動させ、２５ｍｍ，４０ｍｍ，５５ｍｍの各ディスク半径位置において、光ピックアップ４の位置に配置したレーザ変位計によってディスク面振れを計測した。   In the comparative example having the above-described configuration, the same disk as in Example 1 was rotated at a disk rotational speed of 15 m / sec. Thereafter, the stabilizing member 36 is disposed so that the working surface thereof is in the vicinity of the disk reference surface, moved in the disk radial direction, and disposed at the position of the optical pickup 4 at each disk radial position of 25 mm, 40 mm, and 55 mm. The disc surface runout was measured with a laser displacement meter.

なお、図２７，図２８においては、安定化部材３６をディスク基準面に対して押し込んだ例を示してあるが、本比較例はこの押し込み量を零とした。   27 and 28 show an example in which the stabilizing member 36 is pushed into the disk reference surface. In this comparative example, the pushing amount is zero.

前記各実施例と比較例において、各半径位置でのディスク面振れの測定結果は、図２９に示す通りとなった。この結果に示すように、本実施例では、ディスク面上の任意半径方向の直線上全域において良好なディスク面振れ特性を得ることができた。この良好なディスク面振れを得るにあたっては、第三の作用力を発生させる第四の安定化部材３０あるいは第五の安定化部材３５に、複雑な機構を持たせ、また何ら複雑な動作を行わせるような必要はなかった。すなわち、極めて簡略化した構成動作による空気力学的な力の作用のみで、前記の良好なディスク面振れ特性を得ることができた。比較例と比べると、その差は顕著であり、本発明の効果が絶大であることが理解できる。   In each of the examples and comparative examples, the measurement results of the disc surface runout at each radial position are as shown in FIG. As shown in this result, in this example, it was possible to obtain good disk surface run-out characteristics over the entire area on the straight line in the arbitrary radial direction on the disk surface. In order to obtain this good disc surface runout, the fourth stabilizing member 30 or the fifth stabilizing member 35 that generates the third acting force is provided with a complicated mechanism, and any complicated operation is performed. There was no need to let them go. That is, the above-mentioned good disk surface run-out characteristic could be obtained only by the action of aerodynamic force by the extremely simplified configuration operation. Compared with the comparative example, the difference is remarkable, and it can be understood that the effect of the present invention is great.

また、本実施例で示すように、光ピックアップ４の設置側に対して光ディスク１を挟んで反対側に安定化部材を配置して、光ディスク１における記録／再生部分のディスク面振れを抑制する構成の記録／再生装置、光ピックアップ４自体に安定化部材を具備させて、記録／再生部分のディスク面振れを抑制する構成の記録／再生装置などに適用して有効であったが、これに限るものではなく、空気力学的な作用力により記録／再生位置のディスク面振れを安定化して記録／再生を行う構成の記録／再生装置全般において適用可能であり、その適用範囲を何ら制限するものではない。   Further, as shown in the present embodiment, a stabilizing member is disposed on the opposite side of the optical pickup 4 with respect to the optical pickup 4 installation side, thereby suppressing the disc surface fluctuation of the recording / reproducing portion of the optical disc 1. However, the present invention is effective when applied to a recording / reproducing apparatus having a configuration in which the optical pickup 4 itself is provided with a stabilizing member to suppress the disc surface vibration of the recording / reproducing part. However, the present invention can be applied to any recording / reproducing apparatus having a configuration in which recording / reproducing is performed by stabilizing the disc surface vibration at the recording / reproducing position by an aerodynamic force, and is not intended to limit the applicable range. Absent.

このように、本実施形態，本実施例では、簡略化した空気力学的な作用力の構成・動作により、ディスク面上の任意半径方向の直線上全域において良好なディスク面振れ特性を得ることのできる記録／再生装置，ディスクカートリッジを提供することができる。   As described above, in the present embodiment and the present example, it is possible to obtain good disk surface run-out characteristics in the entire area on the straight line in the arbitrary radial direction on the disk surface by the simplified configuration and operation of the aerodynamic acting force. It is possible to provide a recording / reproducing device and a disc cartridge that can be used.

本発明は、可撓性を有する記録ディスクに対して記録および／または再生処理を行う記録／再生装置、およびその記録ディスクを収納するディスクカートリッジに適用され、本発明が対象とする記録ディスクとしては、相変化メモリ，光磁気メモリ，ホログラムメモリなどのディスク状の記録ディスクで活用するものすべてを対象とすることができる。   The present invention is applied to a recording / reproducing apparatus that performs recording and / or reproducing processing on a flexible recording disk, and a disk cartridge that houses the recording disk. In addition, it is possible to target anything utilized in disk-shaped recording disks such as phase change memory, magneto-optical memory, and hologram memory.

本発明の概略を説明するための記録／再生装置の要部の平面図The top view of the principal part of the recording / reproducing apparatus for demonstrating the outline of this invention 図１に示す記録／再生装置の正面図Front view of the recording / reproducing apparatus shown in FIG. 本発明の実施形態１を説明するための記録／再生装置の要部の正面図The front view of the principal part of the recording / reproducing apparatus for describing Embodiment 1 of this invention 第一の安定化部材と第二の安定化部材を設けた本発明の実施形態１に係るディスクカートリッジを説明するための断面図Sectional drawing for demonstrating the disc cartridge concerning Embodiment 1 of this invention which provided the 1st stabilization member and the 2nd stabilization member. 図４のカートリッジの構成を示す平面図The top view which shows the structure of the cartridge of FIG. 図５のカートリッジにおけるＡ−Ａ一部断面図AA partial sectional view of the cartridge of FIG. 本発明の実施形態２を説明するための記録／再生装置の要部の正面図The front view of the principal part of the recording / reproducing apparatus for describing Embodiment 2 of this invention 第一〜第三の安定化部材を設けた本発明の実施形態２に係るディスクカートリッジを説明するための断面図Sectional drawing for demonstrating the disc cartridge which concerns on Embodiment 2 of this invention which provided the 1st-3rd stabilization member. 図８のカートリッジの構成を示す平面図The top view which shows the structure of the cartridge of FIG. 図９のカートリッジにおけるＡ−Ａ一部断面図AA partial cross-sectional view of the cartridge of FIG. 実施形態２の記録／再生装置の変形例１における要部を示す断面図Sectional drawing which shows the principal part in the modification 1 of the recording / reproducing apparatus of Embodiment 2. FIG. 図１１の変形例１におけるディスクカートリッジの平面図FIG. 11 is a plan view of a disk cartridge in the first modification of FIG. 図１２のカートリッジにおけるＡ−Ａ一部断面図FIG. 12 is a partial cross-sectional view of the cartridge of FIG. 実施形態２の変形例２におけるディスクカートリッジの構成を示す平面図FIG. 6 is a plan view showing the configuration of a disk cartridge in a second modification of the second embodiment. 図１４のカートリッジにおけるＡ−Ａ一部断面図14 is a partial cross-sectional view taken along the line AA in the cartridge of FIG. 実施形態２の変形例３におけるディスクカートリッジの構成を示す平面図FIG. 9 is a plan view showing the configuration of a disc cartridge according to Modification 3 of Embodiment 2. 図１６のカートリッジにおけるＡ−Ａ一部断面図AA partial sectional view of the cartridge of FIG. 実施形態２の変形例４におけるディスクカートリッジの構成を示す平面図FIG. 9 is a plan view showing the configuration of a disc cartridge according to Modification 4 of Embodiment 2. 図１８のカートリッジにおけるＡ−Ａ一部断面図AA partial sectional view of the cartridge of FIG. 実施形態２の変形例５における記録／再生装置の構成を示す断面図Sectional drawing which shows the structure of the recording / reproducing apparatus in the modification 5 of Embodiment 2. FIG. 実施形態２の変形例６を示す記録／再生装置の断面図Sectional drawing of the recording / reproducing apparatus which shows the modification 6 of Embodiment 2. FIG. 変形例６の記録／再生装置で用いているディスクカートリッジの平面図Plan view of a disk cartridge used in the recording / reproducing apparatus of Modification 6 図２２のカートリッジにおけるＡ−Ａ一部断面図22 is a partial cross-sectional view taken along the line AA in the cartridge of FIG. 実施形態２の変形例７を示す記録／再生装置の断面図Sectional drawing of the recording / reproducing apparatus which shows the modification 7 of Embodiment 2. FIG. 変形例７の記録／再生装置で用いているディスクカートリッジの平面図Plan view of a disk cartridge used in the recording / reproducing apparatus of Modification 7 図２５のカートリッジにおけるＡ−Ａ一部断面図AA partial sectional view of the cartridge of FIG. 本発明の比較例の構成を示す平面図The top view which shows the structure of the comparative example of this invention 図２７の比較例の正面図Front view of the comparative example of FIG. 本発明に係る実施例と比較例とにおける各半径位置でのディスク面振れの測定結果を示す図The figure which shows the measurement result of the disk surface runout in each radial position in the Example which concerns on this invention, and a comparative example

符号の説明Explanation of symbols

１ 可撓性を有する光ディスク（記録ディスク）
３ スピンドルモータ
４ 光ピックアップ（記録／再生手段）
３０ 第四の安定化部材
３１ 第一の安定化部材
３２ 第二の安定化部材
３３ 第三の安定化部材
３５ 第五の安定化部材 1 Flexible optical disk (recording disk)
3 Spindle motor 4 Optical pickup (recording / reproducing means)
30 4th stabilization member 31 1st stabilization member 32 2nd stabilization member 33 3rd stabilization member 35 5th stabilization member

Claims (13)

可撓性を有する記録ディスクの面内を、記録／再生手段が走査する動線に近接し、かつ前記記録ディスクの中心付近を通る直線によって２つの領域に分け、前記記録ディスク回転時に、前記領域の少なくとも一方に空気力学的な作用力を発生させる空気力学的作用手段を備えた記録／再生装置において、前記作用力として、前記記録ディスク面をディスク半径方向に傾ける第一の作用力と、前記記録ディスク面を前記直線に対して平行にさせる第二の作用力を発生させることを特徴とする記録／再生装置。   The surface of the flexible recording disk is divided into two areas by a straight line that is close to the flow line that the recording / reproducing means scans and passes through the vicinity of the center of the recording disk. In the recording / reproducing apparatus provided with aerodynamic action means for generating aerodynamic action force on at least one of the above, as the action force, a first action force for inclining the recording disk surface in the disk radial direction; A recording / reproducing apparatus for generating a second acting force that makes a recording disk surface parallel to the straight line. 前記第一の作用力と前記第二の作用力との発生側に対して前記記録ディスクを挟んで反対側に第三の作用力を発生させることを特徴とする請求項１記載の記録／再生装置。   2. The recording / reproducing apparatus according to claim 1, wherein a third acting force is generated on the opposite side of the recording disk with respect to a generating side of the first acting force and the second acting force. apparatus. 前記空気力学的作用手段における前記第一の作用力と前記第二の作用力を発生させる部位を一体化したことを特徴とする請求項１または２記載の記録／再生装置。   3. The recording / reproducing apparatus according to claim 1, wherein a part for generating the first acting force and the second acting force in the aerodynamic acting means is integrated. 前記空気力学的作用手段を、前記第一の作用力を発生させる第一の安定化部材と、該第一の安定化部材以外の領域において前記第二の作用力を発生させる第二の安定化部材とによって構成し、前記第一の安定化部材を前記記録ディスクに対して反発力を発生させる構造とし、前記第二の安定化部材において、ディスク対向面の前記記録／再生手段の動線方向における断面の主形状を略直線状、かつこれに垂直な方向における断面の主形状を凹面形状としたことを特徴とする請求項１〜３いずれか１項記載の記録／再生装置。   The aerodynamic acting means includes a first stabilizing member that generates the first acting force and a second stabilization that generates the second acting force in a region other than the first stabilizing member. And the first stabilizing member is configured to generate a repulsive force with respect to the recording disk, and in the second stabilizing member, the flow direction of the recording / reproducing means on the disk facing surface is 4. The recording / reproducing apparatus according to claim 1, wherein the main shape of the cross section in the cross section is substantially linear, and the main shape of the cross section in the direction perpendicular thereto is a concave shape. 前記第一の安定化部材と前記第二の安定化部材との設置側に対して前記記録ディスクを挟んで反対側に第四の作用力を発生させる第三の安定化部材を設置し、該第三の安定化部材において、ディスク対向面の記録／再生手段の動線方向における断面の主形状を略直線状、かつこれに垂直な方向における断面の主形状を凸面形状としたことを特徴とする請求項４記載の記録／再生装置。   Installing a third stabilizing member for generating a fourth acting force on the opposite side across the recording disk with respect to the installation side of the first stabilizing member and the second stabilizing member; The third stabilizing member is characterized in that the main shape of the cross section in the direction of flow of the recording / reproducing means on the disk facing surface is substantially linear, and the main shape of the cross section in the direction perpendicular thereto is a convex shape. The recording / reproducing apparatus according to claim 4. 前記第一の安定化部材と前記第二の安定化部材とを一体化したことを特徴とする請求項４または５記載の記録／再生装置。   6. The recording / reproducing apparatus according to claim 4, wherein the first stabilizing member and the second stabilizing member are integrated. 前記記録／再生手段の設置側に対して前記記録ディスクを挟んだ反対側に、第三の作用力を発生させる第四の安定化部材を設置したことを特徴とする請求項４記載の記録／再生装置。   5. The recording / reproducing device according to claim 4, wherein a fourth stabilizing member for generating a third acting force is installed on the opposite side of the recording disk from the installation side of the recording / reproducing means. Playback device. 前記記録／再生手段に前記記録ディスクに対して第三の作用力を発生させる第五の安定化部材を設けたことを特徴とする請求項４記載の記録／再生装置。   5. A recording / reproducing apparatus according to claim 4, wherein the recording / reproducing means is provided with a fifth stabilizing member for generating a third acting force on the recording disk. 可撓性を有する記録ディスクを収納し、該記録ディスクの面内を、記録／再生手段が走査する動線に近接し、かつ前記記録ディスクの中心付近を通る直線によって２つの領域分け、前記記録ディスク回転時に、前記領域の少なくとも一方に空気力学的な作用力を発生させる空気力学的作用手段を備えたディスクカートリッジにおいて、前記空気力学的作用手段として、前記記録ディスク面をディスク半径方向に傾ける第一の作用力を発生させる第一の安定化部材と、該第一の安定化部材以外の領域において前記第二の作用力を発生させる第二の安定化部材とを備えたことを特徴とするディスクカートリッジ。   A recording disk having flexibility is housed, and the area of the recording disk is divided into two regions by a straight line that is close to the flow line that the recording / reproducing means scans and passes through the vicinity of the center of the recording disk. In a disc cartridge provided with aerodynamic action means for generating an aerodynamic action force in at least one of the regions when the disk rotates, the recording disk surface is tilted in the disk radial direction as the aerodynamic action means. A first stabilizing member that generates one acting force; and a second stabilizing member that generates the second acting force in a region other than the first stabilizing member. Disc cartridge. 前記第一の安定化部材を前記記録ディスクに対して反発力を発生させる構造とし、前記第二の安定化部材において、ディスク対向面の前記記録／再生手段の動線方向における断面の主形状を略直線状、かつこれに垂直な方向における断面の主形状を凹面形状としたことを特徴とする請求項９記載のディスクカートリッジ。   The first stabilizing member is configured to generate a repulsive force with respect to the recording disk, and in the second stabilizing member, a main shape of a cross section in the flow direction of the recording / reproducing means on the disk facing surface is set. 10. The disc cartridge according to claim 9, wherein a main shape of a cross section in a substantially straight line shape and a direction perpendicular thereto is a concave shape. 前記第一の安定化部材と前記第二の安定化部材との設置側に対して前記記録ディスクを挟んで反対側に第四の作用力を発生させる第三の安定化部材を設置し、該第三の安定化部材において、ディスク対向面の記録／再生手段の動線方向における断面の主形状を略直線状、かつこれに垂直な方向における断面の主形状を凸面形状としたことを特徴とする請求項９または１０記載のディスクカートリッジ。   Installing a third stabilizing member for generating a fourth acting force on the opposite side across the recording disk with respect to the installation side of the first stabilizing member and the second stabilizing member; The third stabilizing member is characterized in that the main shape of the cross section in the direction of flow of the recording / reproducing means on the disk facing surface is substantially linear, and the main shape of the cross section in the direction perpendicular thereto is a convex shape. The disk cartridge according to claim 9 or 10. 前記第一の安定化部材と前記第二の安定化部材とを一体化したことを特徴とする請求項９〜１１いずれか１項記載のディスクカートリッジ。   12. The disc cartridge according to claim 9, wherein the first stabilizing member and the second stabilizing member are integrated. 前記記録／再生手段の設置側に対して前記記録ディスクを挟んだ反対側に、第三の作用力を発生させる第四の安定化部材を設置したことを特徴とする請求項９または１０記載のディスクカートリッジ。   11. The fourth stabilizing member for generating a third acting force is installed on the opposite side of the recording / reproducing means with respect to the recording disk. Disc cartridge.
JP2005155367A 2004-10-14 2005-05-27 Recording/playing-back device and disk cartridge Pending JP2006139894A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4940501A (en) * 1972-08-18 1974-04-16
JPS5159608A (en) * 1974-11-20 1976-05-24 Matsushita Electric Ind Co Ltd FUREKISHIBURUDEISUKUKIROKUSAISEISOCHI
JPS51104804A (en) * 1975-03-12 1976-09-17 Hitachi Ltd KATOSEISHIITOJOENBANNO KAITENSOCHI
JPS5342807A (en) * 1976-09-30 1978-04-18 Ibm Data memory
JPS60145538A (en) * 1984-01-09 1985-08-01 Nippon Telegr & Teleph Corp <Ntt> Optical recording and reproducing method and its device
JP2003022651A (en) * 2001-07-06 2003-01-24 Ricoh Co Ltd Optical disk drive, optical information recorder and optical information reproducing device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4940501A (en) * 1972-08-18 1974-04-16
JPS5159608A (en) * 1974-11-20 1976-05-24 Matsushita Electric Ind Co Ltd FUREKISHIBURUDEISUKUKIROKUSAISEISOCHI
JPS51104804A (en) * 1975-03-12 1976-09-17 Hitachi Ltd KATOSEISHIITOJOENBANNO KAITENSOCHI
JPS5342807A (en) * 1976-09-30 1978-04-18 Ibm Data memory
JPS60145538A (en) * 1984-01-09 1985-08-01 Nippon Telegr & Teleph Corp <Ntt> Optical recording and reproducing method and its device
JP2003022651A (en) * 2001-07-06 2003-01-24 Ricoh Co Ltd Optical disk drive, optical information recorder and optical information reproducing device

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