JP3976510B2 - Optical disk device - Google Patents

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JP3976510B2
JP3976510B2 JP2001057954A JP2001057954A JP3976510B2 JP 3976510 B2 JP3976510 B2 JP 3976510B2 JP 2001057954 A JP2001057954 A JP 2001057954A JP 2001057954 A JP2001057954 A JP 2001057954A JP 3976510 B2 JP3976510 B2 JP 3976510B2
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guide
guide member
base
optical pickup
disk
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JP2002260351A (en
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多圭士 稲谷
厚司 道盛
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、光ディスク装置に関し、特に光ピックアップの移動をガイドするガイド部材の取付け調整機構を有する光ディスク装置に関する。
【0002】
【従来の技術】
近年、ディスクの高密度化に対応するため、これらのディスクを用いて記録、再生する際には、ディスクの信号記録面と光ピックアップの光軸との垂直度を、従来のディスク装置に比べてより高精度に保つよう装置を構成する必要がある。しかし、部品単品の精度を向上させて組み立てるだけでは要求精度を満たすことが出来ないため、現状の装置では、製品内部に調整機構を設け、組み立て後に傾き調整を実施する方法が取られている。
【0003】
図13〜図15は、特開平10−125016に示されたディスクドライブ装置のガイド部材調整機構をそれぞれ示す。図13は、ディスクの載置面を下方に向けて配置した状態を示す装置の全体斜視図、図14はガイド部材調整機構の断面図、そして図15はガイド部材調整機構の分解斜視図である。
【0004】
図13に示すように、ベース116の裏面にブラケット104が固定されている。光ピックアップ108を搭載した移動ベース118は、一対のガイド部材114および115に案内される。一方のガイド部材114の両端は、ブラケット104に設けられた支持体104a,104bに固定されている。ブラケット104には、トラッキングモータ125、減速ギア列126、及び送りスクリュー軸127が支持されており、移動ベース118に板ばね128を介して支持された雌ネジ部材129が前記送りスクリュー軸127に螺合している。移動ベース118が摺動するX軸方向の一方の端には、調整台座130にスピンドルモータ111が固定され、その回転軸111aがベース116の表面側(Z軸の(−)方向)に突出して、この回転軸111aの先端にディスク101を載置するターンテーブル113が固定されている。
【0005】
図14に示すように、ガイド部材115の両端部は、保持部材121及び122にそれぞれ保持されて固定されている。保持部材121,122の互いに向き合う面には、保持穴121a,122aが形成されており、この保持穴121a,122aにガイド部材115の端部がそれぞれ嵌入して固定されている。保持部材121,122の内部には、Z軸方向に延びるネジ挿通用の小孔121b,122b、及びガイド穴となる大孔121c,122cがそれぞれ形成されている。小孔121b,122bは、保持部材121,122の上端に開口し、大孔121c,122cは下端に開口している。
【0006】
ベース116には一対の支持台134,134が固定されている。支持台134,134の下端には、かしめ部134b,134bが一体に突設されており、このかしめ部134b,134bが、ベース116に穿設された取付け孔116a,116aに挿入され、ベース116の裏面でかしめられて固定されている。保持部材121,122のガイド穴となる前記大孔121c,122cは、各々円筒状支持台134,134に隙間なく且つ摺動自在に凹凸嵌合し、保持部材121,122は、各々支持台134,134に対してZ軸方向へ摺動自在に案内されている。
【0007】
ベース116上の一対の支持台134の近傍には、付勢部材としての板ばね123がかしめなどの固定手段によってそれぞれ取付けられている。各板ばね123は、薄い金属製板ばね材をプレス加工して形成されたものであり、図15に示す様に上方(Z軸の(+)方向)に折り曲げられたアーム部123aを有し、その先端部が支持部123bとなっている。支持部123bは、円弧状に形成され、その曲率半径は支持台134の外径よりも大きく形成され、保持部材121,122の下面に弾圧されている。従って、板ばね123は、折り曲げられた根元部分を中心にアーム部123aがZ軸の(+)方向に弾性力を発揮し、支持台134に外挿される保持部材121,122は、Z軸の(+)方向へ付勢されている。
【0008】
また、保持部材121,122の上方からは、調整ネジ124が小孔121b,122b内に挿入され、支持台134,134に形成されているネジ孔134aに螺着されている。この調整ネジ124を締め付けることにより、各保持部材121,122はベース116に近づく方向(Z軸の(−)方向)に調整でき、反対に調整ネジ124を弛めると、板ばね123の付勢力により保持部材121,122は持ち上げられ、Z軸の(+)方向へ位置を調整できる。よって、調整ネジ124の回転により、保持部材121,122をZ軸方向に昇降させることができ、ガイド部材115の高さ調整をすることが可能となる。
【0009】
なお、保持部材121と122の下部には、側方への突出部121d,122dが一体に設けられ、その底面にZ軸の(−)方向に伸びる円筒状の小凸部121e,122eが一体に形成されている。ベース116には、前記小凸部121e,122eが挿通可能な***116b,116bが形成されている。保持部材121,122のベース116に対する高さ調整が行われる際、小凸部121eと122eとが***116b,116b内に位置して昇降し、保持部材121,122の孔116aを中心とした回転が阻止され、保持穴121a,122aが互いに向き合った状態が維持される。
【0010】
【発明が解決しようとする課題】
光ピックアップ108、スピンドルモータ111を搭載するベース116の平面的な大きさは、ディスク101の大きさとそれを径方向に走査する光ピックアップ108の大きさによりその概略寸法が決められる。このベース116を小型化するには、光ピックアップ108、またはこれをディスク径方向に駆動する光ピックアップ移動機構を小型化して構成する必要がある。
【0011】
特に1台の装置内に複数枚のディスクをストックし、これらを順次交換しながら、ディスクの記録・再生を実施するディスクチェンジャー機構においては、ベース116を装置内で可動とするものが多く、その寸法は小さいほど望ましい。また、ベース116上に構成する光ピックアップ移動機構は、ディスク交換機構との構造上の干渉を回避しながら装置全体を小型化するために、その配置に自由度のあるものがより望ましい。
【0012】
しかながら、図13〜図15に示した光ピックアップ移動機構の一つであるガイド部材調整機構においては、ガイド部材115を、保持部材121,122で保持してこれをZ軸方向に調整可能に軸支する構造上、保持部材121,122を、光ピックアップ108の可動範囲外のガイド部材115の長手方向(X軸方向)両端部に配置する必要がある。この保持部材121,122を支持台134にねじ止めする本機構では、調整ねじ124をガイド部材115の長手方向(X軸方向)に配置するため、ガイド部材調整機構の長手方向(X軸方向)の寸法を短縮することが難しく、調整ねじ124の配置も図13〜図15に示した位置から大きく変更できないという問題が発生する。
【0013】
また保持部材121,122を、これとは別体の板ばね123で付勢しているため、部品点数が増え、組立て工程が増えるという問題がある。さらにガイド部材115の保持を、保持部材121,122の保持穴121a,122aとガイド部材115の両端部のはめ合いで実施しているため、部品公差のばらつきにより両者のすきまが大きくなると、ガイド部材115が保持部材121,122に対してガタつき、その位置決めが不安定になるという問題が発生する。
【0014】
本発明は、上記のような問題点を解消するためになされたもので、ベース寸法、特にガイド部材の長手方向(X軸方向)の寸法を短縮し、ガイド部材調整機構の配置設計の自由度を高め、部品点数を削減し、かつ安定した位置決めが得られるガイド部材調整機構を得ることを目的とする。
【0015】
【課題を解決するための手段】
請求項1の光ディスク装置は、ディスクに所定のレーザー光を照射する光ピックアップと、該光ピックアップを支持して前記ディスクの径方向に移動せしめる光ピックアップ移動機構と、前記ディスクを保持してこれを回転駆動するスピンドルモータと、ベースとを備えた光ディスク装置であって、
前記ベースに固定され、前記光ピックアップを支持するガイド部材の少なくとも一方の端部を前記光ピックアップの移動方向と略垂直な方向へ昇降自在に案内する支持部材と、前記ベースに固定され、前記光ピックアップの移動方向と略垂直な面に平行で前記ガイド部材の前記端部と係合するガイド先端保持部を有し、該ガイド先端保持部を前記ベースから離間する方向に付勢する弾性部材と、前記弾性部材を挿通して前記ベースに螺合する調整ねじとを有し、
前記調整ねじの締め付け量により、前記ガイド部材の前記端部を前記光ピックアップの移動方向と略垂直な方向へ昇降移動することを特徴とする。
【0016】
請求項2の光ディスク装置は、請求項1記載の光ディスク装置において、前記ガイド部材の前記端部を前記ガイド先端保持部の係合部の一方向にその弾性力で付勢するガイド押圧部を、前記ガイド先端保持部に設けたことを特徴とする。
また、請求項3の光ディスク装置は、請求項1記載の光ディスク装置において、前記ガイド部材の前記端部を前記ガイド先端保持部に係合させた後、外部からの作用で塑性変形することにより前記端部を前記ガイド先端保持部の係合部の一方向に付勢するガイド押圧部を、前記ガイド先端保持部に設けたことを特徴とする。
更に、請求項4の光ディスク装置は、請求項1記載の光ディスク装置において、前記支持部材を前記ベースと一体化したことを特徴とする。
【0017】
【発明の実施の形態】
実施の形態1.
図1から図5は、本発明による光ディスク装置の駆動機構部におけるガイド部材調整機構の実施の形態1の構成を示した図で、図1はこのガイド部材調整機構2を含む駆動機構部1を裏面から見た全体斜視図、図2は図1の分解斜視図、図3は図1のガイド部材の支持構造を示す要部斜視図、図4は図1の一つのガイド部材調整部を示す斜視図、そして図5は図1のもう一つのガイド部材調整部を示す斜視図である。
尚、これらの各図に示されるX,Y,Zの各軸の方向は、各図間で共通するように設定している。
【0018】
駆動機構部1の構成を示す図1、図2において、スピンドルモータ11は、かしめ等の方法によりベース16に固定された支持台35a,35b,35cを介して、止めねじ36a,36b,36cによりベース16に固定されている。光ピックアップ8には、板ばね61、与圧ばね63がそれぞれ止めねじ62,64によって固定され、光ピックアップ8はこれら板ばね61、与圧ばね63がそれぞれガイド部材14、15に接する形で移動可能に支持されている。
尚、光ピックアップ8の移動方向にY軸を設定し、このY軸と直交する、スピンドルモータ11の回転軸方向にZ軸を設定し、そしてこれら両軸に直交する方向にX軸を設定する。
【0019】
ガイド部材15は、図3に示すようにその端部15aが、支持部材41の板状のガイド支持部41aに設けたガイド穴41bと係合し、同様にもう一つの端部15b(図2)が、支持部材42の板状のガイド支持部42aに設けたガイド穴42b(図2)と係合し、Z軸方向に昇降自在に支持されている。支持部材41は、止めねじ43a、43bによりベース16に固定され、支持部材42も、図示しない止めねじにより同様にベース16に固定されている。
【0020】
図4に示す弾性部材51は、薄い金属製板ばね材をプレス加工して形成したものであり、そのガイド先端保持部51aに設けたガイド係合部51bと前記ガイド部材端部15aとがZ軸方向にすきまなく係合している。弾性部材51は、固定部51dにおいて、止めねじ55a、55bによりベース16にねじ止め固定される。弾性部材51は、そのばね部51cが単体の状態からZ軸(−)方向に変位したときにZ軸(+)方向にばね力を発生するよう構成されており、調整ねじ53は、弾性部材51のばね部51cに設けた穴51f(図2)を挿通し、ばね部51cを単体の状態からZ軸(−)方向に変位させながら、ベース16に設けた雌ねじ部16cに螺合している。
【0021】
図5に示す弾性部材52も、薄い金属製板ばね材をプレス加工して形成したものであり、そのガイド先端保持部52aに設けたガイド係合部52bと前記ガイド部材端部15bがZ方向にすきまなく係合している。弾性部材52は、固定部52dにおいて、止めねじ56a、56bによりベース16にねじ止め固定される。弾性部材52は、そのばね部52cが単体の状態からZ軸(−)方向に変位したときにZ軸(+)方向にばね力を発生するよう構成されており、調整ねじ54は、弾性部材52のばね部52cに設けた穴52f(図2)を挿通し、ばね部52cを単体の状態からZ軸(−)方向に変位させながら、ベース16に設けた雌ねじ部16dに螺合している。
【0022】
この弾性部材52の場合、ガイド先端保持部52aと、ばね部52c及び固定部52dとが、略L字状に形成され、止めねじ56a、56b及び調整ねじ54がガイド部材15の脇に略平行して配置されている。
【0023】
尚、もう一方のガイド部材14においても、ガイド部材15と同様にその端部14a,14bが、各々図示しない支持部材及び弾性部材によって支持されるが、それらは、ガイド部材15の場合と略同様に構成されるため、それらについての説明を省略する。
【0024】
次に、以上のようにガイド部材15、支持部材41,42、弾性部材51,52、及び調整ねじ53,54等で構成されたガイド部材調整機構2の動作について説明する。
【0025】
Z軸方向に昇降自在に支持されているガイド部材15のZ軸方向の高さは、その両端部15a、15bを保持する弾性部材51、52に設けたガイド係合部51b、52b(図2)のそれぞれの高さ位置により位置決めされる。調整ネジ53(図4)を締め付けることにより、ガイド係合部51bはベース16に近づく方向(Z軸(−)方向)に調整でき、反対に調整ネジ53を弛めると、弾性部材51の付勢力によりガイド係合部51bはベース16と離間する方向に変位するので、Z軸(+)方向への位置調整が可能となる。よって、調整ネジ53の回転により、ガイド係合部51bをZ軸方向に昇降させることができ、ガイド部材15の端部15aの高さ調整をすることが可能となる。
【0026】
同様に調整ネジ54(図5)を締め付けることにより、ガイド係合部52bはベース16に近づく方向(Z軸(−)方向)に調整でき、反対に調整ネジ54を弛めると、弾性部材52の付勢力によりガイド係合部52bはベース16と離間する方向に変位するので、Z軸(+)方向への位置調整が可能となる。よって、調整ネジ54の回転により、ガイド係合部52bをZ軸方向に昇降させることができ、ガイド部材15の端部15bの高さ調整をすることが可能となる。
【0027】
なお、ガイド部材15の高さ調整をした後は、ガイド係合部51bとガイド部材端部15aの係合部、およびガイド係合部52bとガイド部材端部15bの係合部にわずかに残るすきまを接着剤等で埋めて両者を固着する。これにより装置使用時に外部から振動が伝達された場合も、その位置決め状態が変化するのを防ぐことが可能となる。
【0028】
以上のように、実施の形態1のガイド部材調整機構2によれば、弾性部材51,52の形状によって、ガイド部材15の高さを調整する調整ねじ53,54の設定位置を比較的自由に設定できる。また弾性部材51,52が、ガイド部材15に係合するガイド係合部と、これを付勢するためのばね部とを備えるため、構成を簡素化することができる。
【0029】
実施の形態2.
図6から図8は、本発明による光ディスク装置の駆動機構部におけるガイド部材調整機構の実施の形態2の構成を示した図で、図6はこのガイド部材調整機構4を含む駆動機構部3を裏面から見た全体斜視図、図7は図6をY軸の(−)方向からみた側面図、そして図8は図6のガイド部材調整部の要部拡大斜視図である。この図8では、構成の理解のために支持部材41を省いている。
【0030】
尚、これらの各図に示されるX,Y,Zの各軸の方向は、各図間で共通するように設定し、前記実施の形態1の場合と同様に、光ピックアップ8の移動方向にY軸を設定し、このY軸と直交する、スピンドルモータ11(図1)の回転軸方向にZ軸を設定し、そしてこれら両軸に直交する方向にX軸を設定している。
【0031】
本実施の形態のガイド部材調整機構4が前記した実施の形態1のガイド部材調整機構2と異なる点は、弾性部材65の形状である。従って、本実施の形態において使用される弾性部材65と関係する部分の構成について重点的に説明し、実施の形態1のガイド部材調整機構2及びその他と同じ構成を有する個所については同符号を付してそれらの説明を省略する。
【0032】
ここでは弾性部材65のガイド先端保持部65aに設けたガイド係合部65bが穴ではなく、その一部が開放された切り欠きとなっている。さらにガイド先端保持部65aの一端に弾性を有するガイド押圧部65eが形成されている。このガイド押圧部65eは、ガイド部材端部15aをガイド係合部65bに挿入した時に、その弾性により、ガイド部材端部15aをガイド係合部65bの切り欠き端面65fに付勢する位置に配置されている。
尚、Z軸方向に昇降自在に支持されているガイド部材15のZ軸方向の高さ調整方法は、前記実施の形態1の場合と同一であるため、その説明を省略する。
【0033】
また、上記実施の形態2では、ガイド係合部65bとガイド部材端部15aとの係合を、ガイド押圧部65eの弾性力で、ガイド部材端部15aをガイド係合部65bの切り欠き端面65fに付勢するように圧接して行ったが、これを図9及び図10に示すように別の実施例の構成で行ってもよい。
【0034】
図9はガイド部材取付け前のガイド押圧部65e付近の拡大図であり、図10はガイド部材取付け後のガイド押圧部65e付近の拡大図である。図9において、ガイド押圧部65eは、ガイド部材端部15aをガイド係合部65bに挿入した時に、ガイド部材端部15aと接触しない位置に配置されている。ガイド部材端部15aをガイド係合部65bに挿入後、外部からの治工具の作用力によりガイド押圧部65eを図10のように塑性変形させ、ガイド部材端部15aを常にガイド係合部65bの切り欠き端面65fに付勢する。これにより、上記の実施の形態2の場合と同等の効果を得ることができる。
【0035】
以上の様に、実施の形態2のガイド部材調整機構2によれば、ガイド部材端部15aが、ガイド押圧部65eの弾性力により、常にガイド係合部65bの切り欠き端面65fに付勢されているので、前記実施の形態1で示した接着剤等による固着を実施しなくても、装置使用時に外部から振動が伝達された場合の、位置決め状態の変化や、ガタつきを防ぐことが可能となる。
【0036】
実施の形態3.
図11及び図12は、本発明による光ディスク装置のガイド部材調整機構の実施の形態3の構成を示したガイド部材調整部の要部斜視図である。
【0037】
尚、これらの各図に示されるX,Y,Zの各軸の方向は、各図間で共通するように設定し、前記実施の形態1の場合と同様に、光ピックアップ8の移動方向にY軸を設定し、このY軸と直交する、スピンドルモータ11(図1)の回転軸方向にZ軸を設定し、そしてこれら両軸に直交する方向にX軸を設定している。
【0038】
本実施の形態のガイド部材調整機構5が前記した実施の形態1のガイド部材調整機構2と異なる点は、ガイド支持部16eの構成である。従って、本実施の形態におけるガイド支持部16eと関係する部分の構成について重点的に説明し、実施の形態1のガイド部材調整機構2及びその他と同じ構成及び動作をする個所については同符号を付して、或いは図示せずにそれらの説明を省略する。
【0039】
上記実施の形態1および2では、支持部材41、42(図2)をベース16と別部材とし、ベース16にねじ止めするように構成していたが、本実施の形態では、この支持部材41、42に替えて、ベース16と一体化したガイド支持部16eを形成している。図11は、このガイド支持部16eの形状を示す斜視図で、このガイド支持部16eに形成され、実施の形態1における支持部材41(図2)のガイド穴41bに対応するガイド穴16fに、ガイド部材15の端部15aが嵌合している状態を示している。
【0040】
更に、図12は、前記した弾性部材51が、その係合部51bがガイド部材15の端部15aと係合するように配設されて、ガイド部材調整部が完成した状態を示している。この状態におけるガイド部材15のZ軸方向の高さ調整方法は、前記実施の形態1の場合と同一であるため、その説明を省略する。
【0041】
以上のように、実施の形態3のガイド部材調整機構によれば、ガイド支持部16eをベース16と一体形成することにより、部品点数の削減が図れる。
【0042】
【発明の効果】
請求項1のディスク装置によれば、弾性部材の形状を考慮することによって、ガイド部材の高さを調整する調整ねじの設定位置をガイド部材の延長上に限らず比較的自由に設定できるため、光ピックアップ移動機構の形状を、限られたスペースに効率よく合わせて設計する自由度が増える。また、弾性部材自身がガイド部材と係合して作用する構成とするため、構成が簡潔になって部品点数を削減することができる。
【0043】
請求項2、3のディスク装置によれば、請求項1の効果に加え、ガイド部材をガタつきなく保持できるため、接着剤を使用することなく外部振動等の要因による位置決め変化を防止することができる。
【0044】
請求項4のディスク装置によれば、請求項1の効果に加え、ガイド支持部をベースと一体形成することにより、部品点数が削減されて更に組立工程数を減らすことができる。
【図面の簡単な説明】
【図1】 本発明による光ディスク装置の実施の形態1のガイド部材調整機構2を含む駆動機構部1を裏面から見た全体斜視図である。
【図2】 図1の分解斜視図である。
【図3】 図1のガイド部材の支持構造を示す要部斜視図である。
【図4】 図1の一つのガイド部材調整部を示す斜視図である。
【図5】 図1のもう一つのガイド部材調整部を示す斜視図である。
【図6】 本発明による光ディスク装置の実施の形態2のガイド部材調整機構4を含む駆動機構部3を裏面から見た全体斜視図である。
【図7】 図6をY軸の(−)方向からみた側面図である。
【図8】 図6のガイド部材調整部の要部拡大斜視図である。
【図9】 実施の形態2の他の実施例を示すガイド押圧部65e付近の拡大図である。
【図10】 図9のガイド押圧部65eにガイド部材を取付けた後の同部分の拡大図である。
【図11】 本発明による光ディスク装置のガイド部材調整機構の実施の形態3の構成を示したガイド部材調整部の完成前の要部斜視図である。
【図12】 図11のガイド部材調整部の完成後の要部斜視図である。
【図13】 ディスクの載置面を下方に向けて配置した状態を示す従来装置の全体斜視図である。
【図14】 従来装置のガイド部材調整機構の断面図である。
【図15】 従来装置のガイド部材調整機構の分解斜視図である。
【符号の説明】
1,3 駆動機構部、 2,4,5 ガイド部材調整機構、 8 光ピックアップ、 11 スピンドルモータ、 14,15 ガイド部材、 15a,15b 端部、 16 ベース、 16c,16d 雌ねじ部、 16e ガイド支持部、 16f ガイド穴、 35a,35b,35c 支持台、 36a,36b,36c 止めねじ、 41,42 支持部材、 41a,41a ガイド支持部、 41b,42b ガイド穴、 43a,43b 止めねじ、 51,52,65 弾性部材、 51a,52a,65a ガイド先端保持部、 51b,52b,65b ガイド係合部、 51c,52c,65c ばね部、 51d,52d,65d 固定部、 53,54 調整ねじ、 55a,55b,56a,56b,62,64 止めねじ、 61 板ばね、 63 与圧ばね、65e ガイド押圧部、 65f 切り欠き端面。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an optical disc apparatus, and more particularly to an optical disc apparatus having a guide member attachment adjustment mechanism for guiding the movement of an optical pickup.
[0002]
[Prior art]
In recent years, in order to cope with the higher density of discs, the perpendicularity between the signal recording surface of the disc and the optical axis of the optical pickup is higher than that of conventional disc devices when recording and reproducing using these discs. It is necessary to configure the apparatus so as to maintain higher accuracy. However, since the required accuracy cannot be satisfied simply by improving the accuracy of a single component, the current apparatus employs a method in which an adjustment mechanism is provided inside the product and tilt adjustment is performed after assembly.
[0003]
13 to 15 show a guide member adjusting mechanism of a disk drive device disclosed in Japanese Patent Laid-Open No. 10-1225016, respectively. 13 is an overall perspective view of the apparatus showing a state in which the disc mounting surface is disposed downward, FIG. 14 is a sectional view of the guide member adjusting mechanism, and FIG. 15 is an exploded perspective view of the guide member adjusting mechanism. .
[0004]
As shown in FIG. 13, the bracket 104 is fixed to the back surface of the base 116. The moving base 118 on which the optical pickup 108 is mounted is guided by a pair of guide members 114 and 115. Both ends of one guide member 114 are fixed to supports 104 a and 104 b provided on the bracket 104. The bracket 104 supports a tracking motor 125, a reduction gear train 126, and a feed screw shaft 127. A female screw member 129 supported by a moving base 118 via a leaf spring 128 is screwed onto the feed screw shaft 127. Match. At one end in the X-axis direction on which the moving base 118 slides, the spindle motor 111 is fixed to the adjustment base 130, and the rotating shaft 111a protrudes to the surface side of the base 116 (Z-axis (-) direction). The turntable 113 on which the disk 101 is placed is fixed to the tip of the rotating shaft 111a.
[0005]
As shown in FIG. 14, both end portions of the guide member 115 are held and fixed by holding members 121 and 122, respectively. Holding holes 121a and 122a are formed in the mutually facing surfaces of the holding members 121 and 122, and the end portions of the guide member 115 are fitted and fixed to the holding holes 121a and 122a, respectively. Inside the holding members 121 and 122, small holes 121b and 122b for screw insertion extending in the Z-axis direction and large holes 121c and 122c serving as guide holes are formed, respectively. The small holes 121b and 122b open to the upper ends of the holding members 121 and 122, and the large holes 121c and 122c open to the lower ends.
[0006]
A pair of support bases 134 are fixed to the base 116. Caulking portions 134 b and 134 b are integrally projected at the lower ends of the support bases 134 and 134, and the caulking portions 134 b and 134 b are inserted into mounting holes 116 a and 116 a drilled in the base 116. It is squeezed and fixed on the back side. The large holes 121c and 122c that serve as guide holes for the holding members 121 and 122 are slidably fitted into the cylindrical support bases 134 and 134 without any gaps, respectively. The holding members 121 and 122 are respectively supported by the support base 134. , 134 is slidably guided in the Z-axis direction.
[0007]
In the vicinity of the pair of support bases 134 on the base 116, leaf springs 123 as urging members are respectively attached by fixing means such as caulking. Each leaf spring 123 is formed by pressing a thin metal leaf spring material, and has an arm portion 123a bent upward (in the (+) direction of the Z axis) as shown in FIG. The tip portion is a support portion 123b. The support portion 123b is formed in an arc shape, and its radius of curvature is larger than the outer diameter of the support base 134, and is elastically pressed to the lower surfaces of the holding members 121 and 122. Accordingly, the leaf spring 123 has the arm portion 123a exerting an elastic force in the (+) direction of the Z axis centered on the bent root portion, and the holding members 121 and 122 that are extrapolated to the support base 134 are It is biased in the (+) direction.
[0008]
Further, an adjustment screw 124 is inserted into the small holes 121b and 122b from above the holding members 121 and 122, and is screwed into screw holes 134a formed in the support bases 134 and 134. By tightening the adjusting screw 124, the holding members 121 and 122 can be adjusted in the direction approaching the base 116 (Z-axis (−) direction). Conversely, when the adjusting screw 124 is loosened, the urging force of the leaf spring 123 is used. The holding members 121 and 122 can be lifted and their positions can be adjusted in the (+) direction of the Z axis. Therefore, the holding members 121 and 122 can be moved up and down in the Z-axis direction by the rotation of the adjusting screw 124, and the height of the guide member 115 can be adjusted.
[0009]
Note that laterally projecting portions 121d and 122d are integrally provided at the lower portions of the holding members 121 and 122, and cylindrical small convex portions 121e and 122e extending in the (−) direction of the Z axis are integrally formed on the bottom surface thereof. Is formed. The base 116 is formed with small holes 116b and 116b through which the small convex portions 121e and 122e can be inserted. When the height adjustment of the holding members 121 and 122 with respect to the base 116 is performed, the small convex portions 121e and 122e move up and down in the small holes 116b and 116b, and rotate around the holes 116a of the holding members 121 and 122. Is prevented, and the holding holes 121a and 122a are kept facing each other.
[0010]
[Problems to be solved by the invention]
The planar size of the base 116 on which the optical pickup 108 and the spindle motor 111 are mounted is roughly determined by the size of the disk 101 and the size of the optical pickup 108 that scans the disk 101 in the radial direction. In order to reduce the size of the base 116, it is necessary to reduce the size of the optical pickup 108 or the optical pickup moving mechanism that drives the optical pickup 108 in the disk radial direction.
[0011]
In particular, in a disk changer mechanism that records and reproduces a disk while stocking a plurality of disks in one apparatus and sequentially exchanging them, there are many that make the base 116 movable in the apparatus. Smaller dimensions are desirable. Further, the optical pickup moving mechanism configured on the base 116 is more preferably a flexible one in order to reduce the size of the entire apparatus while avoiding structural interference with the disk exchange mechanism.
[0012]
However, in the guide member adjusting mechanism which is one of the optical pickup moving mechanisms shown in FIGS. 13 to 15, the guide member 115 is held by the holding members 121 and 122 and can be adjusted in the Z-axis direction. Due to the support structure, the holding members 121 and 122 need to be disposed at both ends in the longitudinal direction (X-axis direction) of the guide member 115 outside the movable range of the optical pickup 108. In this mechanism in which the holding members 121 and 122 are screwed to the support base 134, the adjustment screw 124 is disposed in the longitudinal direction (X-axis direction) of the guide member 115, and thus the longitudinal direction (X-axis direction) of the guide member adjustment mechanism. It is difficult to reduce the size of the adjustment screw 124, and the arrangement of the adjustment screw 124 cannot be changed greatly from the position shown in FIGS.
[0013]
Further, since the holding members 121 and 122 are urged by a plate spring 123 that is a separate member, there is a problem that the number of parts increases and the assembly process increases. Further, since the holding of the guide member 115 is performed by fitting the holding holes 121a and 122a of the holding members 121 and 122 with both ends of the guide member 115, if the clearance between the two becomes large due to variation in component tolerance, the guide member 115 A problem arises that 115 is rattled with respect to the holding members 121 and 122 and the positioning thereof becomes unstable.
[0014]
The present invention has been made to solve the above-described problems. The base dimension, in particular, the length of the guide member in the longitudinal direction (X-axis direction) is shortened, and the degree of freedom in the layout design of the guide member adjustment mechanism. An object of the present invention is to obtain a guide member adjusting mechanism capable of increasing the number of parts, reducing the number of parts, and obtaining stable positioning.
[0015]
[Means for Solving the Problems]
An optical disk apparatus according to claim 1 is an optical pickup that irradiates a disk with a predetermined laser beam, an optical pickup moving mechanism that supports the optical pickup and moves the disk in a radial direction of the disk, and holds the disk. An optical disk device comprising a spindle motor that rotates and a base,
A support member fixed to the base and supporting at least one end of a guide member supporting the optical pickup so as to be movable up and down in a direction substantially perpendicular to the moving direction of the optical pickup; An elastic member having a guide tip holding portion that is parallel to a surface substantially perpendicular to the moving direction of the pickup and that engages with the end portion of the guide member, and that biases the guide tip holding portion in a direction away from the base; An adjustment screw inserted through the elastic member and screwed into the base,
The end portion of the guide member is moved up and down in a direction substantially perpendicular to the moving direction of the optical pickup according to the tightening amount of the adjusting screw.
[0016]
The optical disk device according to claim 2 is the optical disk device according to claim 1, wherein a guide pressing portion that urges the end portion of the guide member in one direction of the engaging portion of the guide tip holding portion with its elastic force, The guide tip holding portion is provided.
According to a third aspect of the present invention, in the optical disk device of the first aspect, the end portion of the guide member is engaged with the guide tip holding portion and then plastically deformed by an external action. The guide tip holding portion is provided with a guide pressing portion that urges an end portion in one direction of the engaging portion of the guide tip holding portion.
Further, an optical disk apparatus according to a fourth aspect is the optical disk apparatus according to the first aspect, wherein the support member is integrated with the base.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
FIGS. 1 to 5 are views showing the configuration of the first embodiment of the guide member adjustment mechanism in the drive mechanism portion of the optical disk apparatus according to the present invention. FIG. 1 shows the drive mechanism portion 1 including the guide member adjustment mechanism 2. FIG. 2 is an exploded perspective view of FIG. 1, FIG. 3 is a perspective view of a main part showing a support structure of the guide member of FIG. 1, and FIG. 4 shows one guide member adjusting portion of FIG. 1. FIG. 5 is a perspective view showing another guide member adjusting portion of FIG.
The directions of the X, Y, and Z axes shown in these drawings are set so as to be common between the drawings.
[0018]
1 and 2 showing the configuration of the drive mechanism unit 1, the spindle motor 11 is set by set screws 36a, 36b, and 36c via support bases 35a, 35b, and 35c fixed to the base 16 by a method such as caulking. It is fixed to the base 16. A plate spring 61 and a pressure spring 63 are fixed to the optical pickup 8 by set screws 62 and 64, respectively. The optical pickup 8 moves so that the plate spring 61 and the pressure spring 63 are in contact with the guide members 14 and 15, respectively. Supported as possible.
The Y axis is set in the moving direction of the optical pickup 8, the Z axis is set in the direction of the rotation axis of the spindle motor 11 perpendicular to the Y axis, and the X axis is set in the direction perpendicular to both the axes. .
[0019]
As shown in FIG. 3, the end 15a of the guide member 15 engages with a guide hole 41b provided in the plate-like guide support portion 41a of the support member 41. Similarly, the other end 15b (FIG. 2) is engaged. ) Engages with a guide hole 42b (FIG. 2) provided in the plate-like guide support portion 42a of the support member 42, and is supported so as to be movable up and down in the Z-axis direction. The support member 41 is fixed to the base 16 with set screws 43a and 43b, and the support member 42 is similarly fixed to the base 16 with set screws (not shown).
[0020]
The elastic member 51 shown in FIG. 4 is formed by pressing a thin metal leaf spring material, and the guide engaging portion 51b provided on the guide tip holding portion 51a and the guide member end portion 15a are Z. Engage in the axial direction without any clearance. The elastic member 51 is screwed and fixed to the base 16 by set screws 55a and 55b in the fixing portion 51d. The elastic member 51 is configured to generate a spring force in the Z-axis (+) direction when the spring portion 51c is displaced in the Z-axis (−) direction from a single state, and the adjustment screw 53 is an elastic member. The hole 51f (FIG. 2) provided in the spring portion 51c of 51 is inserted and screwed into the female screw portion 16c provided in the base 16 while displacing the spring portion 51c from the single state in the Z-axis (−) direction. Yes.
[0021]
The elastic member 52 shown in FIG. 5 is also formed by pressing a thin metal leaf spring material, and the guide engaging portion 52b provided on the guide tip holding portion 52a and the guide member end portion 15b are in the Z direction. It is engaged without any clearance. The elastic member 52 is screwed and fixed to the base 16 by set screws 56a and 56b at the fixing portion 52d. The elastic member 52 is configured to generate a spring force in the Z-axis (+) direction when the spring portion 52c is displaced from the single state in the Z-axis (−) direction. 52 is inserted through a hole 52f (FIG. 2) provided in the spring portion 52c, and is screwed into a female screw portion 16d provided in the base 16 while displacing the spring portion 52c in the Z-axis (−) direction from a single state. Yes.
[0022]
In the case of this elastic member 52, the guide tip holding portion 52 a, the spring portion 52 c, and the fixing portion 52 d are formed in a substantially L shape, and the set screws 56 a and 56 b and the adjustment screw 54 are substantially parallel to the side of the guide member 15. Are arranged.
[0023]
In the other guide member 14, the end portions 14 a and 14 b are respectively supported by a support member and an elastic member (not shown) as in the case of the guide member 15, but they are substantially the same as in the case of the guide member 15. Therefore, description thereof will be omitted.
[0024]
Next, the operation of the guide member adjustment mechanism 2 constituted by the guide member 15, the support members 41 and 42, the elastic members 51 and 52, the adjustment screws 53 and 54, and the like as described above will be described.
[0025]
The height in the Z-axis direction of the guide member 15 supported so as to be movable up and down in the Z-axis direction is determined by guide engaging portions 51b and 52b provided on the elastic members 51 and 52 that hold both end portions 15a and 15b (FIG. 2). ) At each height position. By tightening the adjustment screw 53 (FIG. 4), the guide engaging portion 51b can be adjusted in the direction approaching the base 16 (Z-axis (−) direction), and conversely, if the adjustment screw 53 is loosened, the biasing force of the elastic member 51 As a result, the guide engaging portion 51b is displaced in a direction away from the base 16, so that the position adjustment in the Z-axis (+) direction is possible. Therefore, the guide engagement portion 51b can be moved up and down in the Z-axis direction by the rotation of the adjustment screw 53, and the height of the end portion 15a of the guide member 15 can be adjusted.
[0026]
Similarly, by tightening the adjustment screw 54 (FIG. 5), the guide engaging portion 52b can be adjusted in the direction approaching the base 16 (Z-axis (−) direction), and conversely, if the adjustment screw 54 is loosened, the elastic member 52 Since the guide engaging portion 52b is displaced in the direction away from the base 16 by the urging force, the position adjustment in the Z-axis (+) direction is possible. Accordingly, the guide engaging portion 52b can be moved up and down in the Z-axis direction by the rotation of the adjusting screw 54, and the height of the end portion 15b of the guide member 15 can be adjusted.
[0027]
After the height of the guide member 15 is adjusted, the guide member 15 slightly remains in the engagement portion between the guide engagement portion 51b and the guide member end portion 15a and the engagement portion between the guide engagement portion 52b and the guide member end portion 15b. Fill the gap with adhesive etc. and fix them together. As a result, even when vibration is transmitted from the outside during use of the apparatus, it is possible to prevent the positioning state from changing.
[0028]
As described above, according to the guide member adjusting mechanism 2 of the first embodiment, the setting positions of the adjusting screws 53 and 54 for adjusting the height of the guide member 15 can be relatively freely set by the shapes of the elastic members 51 and 52. Can be set. Moreover, since the elastic members 51 and 52 are provided with the guide engaging part which engages with the guide member 15, and the spring part for biasing this, a structure can be simplified.
[0029]
Embodiment 2. FIG.
6 to 8 are diagrams showing the configuration of the second embodiment of the guide member adjustment mechanism in the drive mechanism section of the optical disk apparatus according to the present invention. FIG. 6 shows the drive mechanism section 3 including the guide member adjustment mechanism 4. FIG. 7 is a side perspective view of FIG. 6 as viewed from the (−) direction of the Y-axis, and FIG. 8 is an enlarged perspective view of a main part of the guide member adjusting portion of FIG. In FIG. 8, the support member 41 is omitted for understanding the configuration.
[0030]
The directions of the X, Y, and Z axes shown in these drawings are set so as to be common between the drawings, and the movement direction of the optical pickup 8 is the same as in the first embodiment. The Y axis is set, the Z axis is set in the direction of the rotation axis of the spindle motor 11 (FIG. 1) orthogonal to the Y axis, and the X axis is set in the direction orthogonal to both the axes.
[0031]
The difference between the guide member adjusting mechanism 4 of the present embodiment and the guide member adjusting mechanism 2 of the first embodiment is the shape of the elastic member 65. Accordingly, the configuration of the portion related to the elastic member 65 used in the present embodiment will be described with emphasis, and the guide member adjusting mechanism 2 of the first embodiment and the parts having the same configuration as those of the first embodiment will be denoted by the same reference numerals. Therefore, those explanations are omitted.
[0032]
Here, the guide engaging portion 65b provided in the guide tip holding portion 65a of the elastic member 65 is not a hole but a notch that is partially opened. Further, an elastic guide pressing portion 65e is formed at one end of the guide tip holding portion 65a. The guide pressing portion 65e is arranged at a position where when the guide member end portion 15a is inserted into the guide engaging portion 65b, the guide member end portion 15a is urged against the notch end surface 65f of the guide engaging portion 65b by its elasticity. Has been.
The height adjustment method in the Z-axis direction of the guide member 15 supported so as to be movable up and down in the Z-axis direction is the same as that in the first embodiment, and the description thereof is omitted.
[0033]
In the second embodiment, the engagement between the guide engaging portion 65b and the guide member end portion 15a is performed by the elastic force of the guide pressing portion 65e, and the guide member end portion 15a is cut away from the notched end surface of the guide engaging portion 65b. Although this is performed by pressing so as to urge it to 65f, this may be performed by the configuration of another embodiment as shown in FIGS.
[0034]
FIG. 9 is an enlarged view of the vicinity of the guide pressing portion 65e before the guide member is attached, and FIG. 10 is an enlarged view of the vicinity of the guide pressing portion 65e after the guide member is attached. In FIG. 9, the guide pressing portion 65e is disposed at a position that does not contact the guide member end portion 15a when the guide member end portion 15a is inserted into the guide engaging portion 65b. After the guide member end portion 15a is inserted into the guide engagement portion 65b, the guide pressing portion 65e is plastically deformed as shown in FIG. 10 by the acting force of the jig from the outside, so that the guide member end portion 15a is always kept at the guide engagement portion 65b. The notch end face 65f is urged. Thereby, the same effect as in the case of the second embodiment can be obtained.
[0035]
As described above, according to the guide member adjusting mechanism 2 of the second embodiment, the guide member end portion 15a is always urged against the notch end surface 65f of the guide engaging portion 65b by the elastic force of the guide pressing portion 65e. Therefore, it is possible to prevent changes in the positioning state and rattling when vibration is transmitted from the outside during use of the device, even without fixing with the adhesive shown in the first embodiment. It becomes.
[0036]
Embodiment 3 FIG.
11 and 12 are perspective views of a main part of the guide member adjusting unit showing the configuration of the guide member adjusting mechanism of the optical disk apparatus according to Embodiment 3 of the present invention.
[0037]
The directions of the X, Y, and Z axes shown in these drawings are set so as to be common between the drawings, and the movement direction of the optical pickup 8 is the same as in the first embodiment. The Y axis is set, the Z axis is set in the direction of the rotation axis of the spindle motor 11 (FIG. 1) orthogonal to the Y axis, and the X axis is set in the direction orthogonal to both the axes.
[0038]
The difference between the guide member adjusting mechanism 5 of the present embodiment and the guide member adjusting mechanism 2 of the first embodiment is the configuration of the guide support portion 16e. Therefore, the configuration of the portion related to the guide support portion 16e in the present embodiment will be described mainly, and the same reference numerals will be given to the portions that perform the same configuration and operation as those of the guide member adjustment mechanism 2 of the first embodiment and others. Or the description thereof is omitted without being shown.
[0039]
In the first and second embodiments, the support members 41 and 42 (FIG. 2) are separate members from the base 16 and are configured to be screwed to the base 16, but in the present embodiment, the support members 41 are provided. , 42 is formed, and a guide support portion 16e integrated with the base 16 is formed. FIG. 11 is a perspective view showing the shape of the guide support portion 16e. In the guide hole 16f formed in the guide support portion 16e and corresponding to the guide hole 41b of the support member 41 (FIG. 2) in the first embodiment, The state which the edge part 15a of the guide member 15 is fitting is shown.
[0040]
Further, FIG. 12 shows a state in which the elastic member 51 is disposed so that the engaging portion 51b engages with the end portion 15a of the guide member 15, and the guide member adjusting portion is completed. The method for adjusting the height of the guide member 15 in the Z-axis direction in this state is the same as that in the first embodiment, and a description thereof will be omitted.
[0041]
As described above, according to the guide member adjusting mechanism of the third embodiment, the number of parts can be reduced by integrally forming the guide support portion 16e with the base 16.
[0042]
【The invention's effect】
According to the disk device of claim 1, since the setting position of the adjusting screw for adjusting the height of the guide member can be set relatively freely without considering the shape of the elastic member, The degree of freedom in designing the shape of the optical pickup moving mechanism in accordance with the limited space is increased. Further, since the elastic member itself is configured to act by engaging with the guide member, the configuration is simplified and the number of parts can be reduced.
[0043]
According to the disk device of the second and third aspects, in addition to the effect of the first aspect, the guide member can be held without rattling, so that a change in positioning due to factors such as external vibration can be prevented without using an adhesive. it can.
[0044]
According to the disk device of the fourth aspect, in addition to the effect of the first aspect, by integrally forming the guide support portion with the base, the number of parts can be reduced and the number of assembly steps can be further reduced.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of a drive mechanism unit 1 including a guide member adjusting mechanism 2 according to a first embodiment of an optical disc apparatus according to the present invention as viewed from the back side.
FIG. 2 is an exploded perspective view of FIG.
FIG. 3 is a perspective view of a main part showing a support structure for the guide member of FIG. 1;
4 is a perspective view showing one guide member adjusting portion of FIG. 1. FIG.
5 is a perspective view showing another guide member adjusting portion of FIG. 1; FIG.
FIG. 6 is an overall perspective view of a drive mechanism unit 3 including a guide member adjusting mechanism 4 according to a second embodiment of the optical disc device according to the present invention as viewed from the back side.
7 is a side view of FIG. 6 as viewed from the (−) direction of the Y-axis.
FIG. 8 is an enlarged perspective view of a main part of the guide member adjusting unit in FIG. 6;
FIG. 9 is an enlarged view of the vicinity of a guide pressing portion 65e showing another example of the second embodiment.
FIG. 10 is an enlarged view of the same part after the guide member is attached to the guide pressing part 65e of FIG.
FIG. 11 is a perspective view of a main part before completion of a guide member adjusting unit showing a configuration of a guide member adjusting mechanism of an optical disc apparatus according to a third embodiment of the present invention;
12 is a perspective view of a main part after completion of the guide member adjusting part of FIG. 11. FIG.
FIG. 13 is an overall perspective view of a conventional apparatus showing a state in which a disk mounting surface is disposed downward.
FIG. 14 is a sectional view of a guide member adjusting mechanism of a conventional device.
FIG. 15 is an exploded perspective view of a guide member adjusting mechanism of a conventional device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1,3 Drive mechanism part, 2,4,5 Guide member adjustment mechanism, 8 Optical pick-up, 11 Spindle motor, 14, 15 Guide member, 15a, 15b End part, 16 Base, 16c, 16d Female thread part, 16e Guide support part , 16f guide hole, 35a, 35b, 35c support base, 36a, 36b, 36c set screw, 41, 42 support member, 41a, 41a guide support part, 41b, 42b guide hole, 43a, 43b set screw, 51, 52, 65 elastic member, 51a, 52a, 65a guide tip holding part, 51b, 52b, 65b guide engaging part, 51c, 52c, 65c spring part, 51d, 52d, 65d fixing part, 53, 54 adjusting screw, 55a, 55b, 56a, 56b, 62, 64 set screw, 61 leaf spring, 63 pressurizing spring, 65e guide Pressure section, 65f cutout end face.

Claims (4)

ディスクに所定のレーザー光を照射する光ピックアップと、該光ピックアップを支持して前記ディスクの径方向に移動せしめる光ピックアップ移動機構と、前記ディスクを保持してこれを回転駆動するスピンドルモータと、ベースとを備えた光ディスク装置において、
前記ベースに固定され、前記光ピックアップを支持するガイド部材の少なくとも一方の端部を前記光ピックアップの移動方向と略垂直な方向へ昇降自在に案内する支持部材と、
前記ベースに固定され、前記光ピックアップの移動方向と略垂直な面に平行で前記ガイド部材の前記端部と係合するガイド先端保持部を有し、該ガイド先端保持部を前記ベースから離間する方向に付勢する弾性部材と、
前記弾性部材を挿通して前記ベースに螺合する調整ねじと
を有し、
前記調整ねじの締め付け量により、前記ガイド部材の前記端部を前記光ピックアップの移動方向と略垂直な方向へ昇降移動することを特徴とする光ディスク装置。
An optical pickup that irradiates a predetermined laser beam onto a disk, an optical pickup moving mechanism that supports the optical pickup and moves the disk in the radial direction of the disk, a spindle motor that holds the disk and rotationally drives it, and a base In an optical disc device comprising:
A support member that is fixed to the base and guides at least one end of a guide member that supports the optical pickup so as to be movable up and down in a direction substantially perpendicular to the moving direction of the optical pickup;
A guide tip holding portion that is fixed to the base and is parallel to a plane substantially perpendicular to the moving direction of the optical pickup and engages with the end portion of the guide member; and the guide tip holding portion is separated from the base. An elastic member biasing in the direction;
An adjustment screw inserted through the elastic member and screwed into the base;
An optical disc apparatus, wherein the end portion of the guide member is moved up and down in a direction substantially perpendicular to the moving direction of the optical pickup according to the tightening amount of the adjusting screw.
前記ガイド部材の前記端部を前記ガイド先端保持部の係合部の一方向にその弾性力で付勢するガイド押圧部を、前記ガイド先端保持部に設けたことを特徴とする請求項1記載の光ディスク装置。The guide tip holding portion is provided with a guide pressing portion that urges the end portion of the guide member in one direction of the engaging portion of the guide tip holding portion with an elastic force. Optical disk device. 前記ガイド部材の前記端部を前記ガイド先端保持部に係合させた後、外部からの作用で塑性変形することにより前記端部を前記ガイド先端保持部の係合部の一方向に付勢するガイド押圧部を、前記ガイド先端保持部に設けたことを特徴とする請求項1記載の光ディスク装置。After engaging the end portion of the guide member with the guide tip holding portion, the end portion is urged in one direction of the engaging portion of the guide tip holding portion by plastic deformation by an external action. The optical disc apparatus according to claim 1, wherein a guide pressing portion is provided in the guide tip holding portion. 前記支持部材を前記ベースと一体化したことを特徴とする請求項1記載の光ディスク装置。The optical disk apparatus according to claim 1, wherein the support member is integrated with the base.
JP2001057954A 2001-03-02 2001-03-02 Optical disk device Expired - Fee Related JP3976510B2 (en)

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JP3976510B2 true JP3976510B2 (en) 2007-09-19

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