JP3906991B2

JP3906991B2 - Disc player

Info

Publication number: JP3906991B2
Application number: JP2003015137A
Authority: JP
Inventors: 剛志栗田
Original assignee: Funai Electric Co Ltd
Current assignee: Funai Electric Co Ltd
Priority date: 2003-01-23
Filing date: 2003-01-23
Publication date: 2007-04-18
Anticipated expiration: 2023-01-23
Also published as: JP2004227695A

Description

【０００１】
【発明の属する技術分野】
本発明は、ＣＤやＤＶＤなどの光ディスクや光磁気ディスク（以下、ディスクと略称する）の再生や記録または消去を行うためのディスクプレーヤに関する。
【０００２】
【従来の技術】
従来、ディスクプレーヤの技術として特許文献１などに記載したものなどがあり、その一例を図７及び図８に基づいて説明すると、これは合成樹脂からなる筐体１とトレイ２とを有し、前記筐体１が、左右一対の側板部３と、該両側板部３間に架設した横桁部４とからなり、各側板部３の内側面に突設した受台５上に左右一対のガイド部材６，７が前後方向ａ，ｂに沿って突設されている。また、トレイ２の下面の一側縁に略Ｕ字状ガイド溝８が形成されると共に、その下面の他側縁に略Ｌ字状ガイド溝９が形成され、その各ガイド溝８，９が前記各ガイド部材６，７に嵌合され、トレイ２の下面の一側縁近傍に前後方向ａ，ｂに沿ってラック１０が形成され、該ラック１０に対向して筐体１の前部の横桁部４上にピニオン１１が設けられている。なお、図７中、１２は光ピックアップ、１３はディスクＤを回転させるためのターンテーブル、１４は各側板部３に突設したトレイ浮き上がり防止片、１５はトレイ２の両側縁後端に突設した抜け止め片であって、該各抜け止め片１５に対向して両側板部３の前端にストッパ１６が突設されている。
【０００３】
上記構成において、トレイ２を後進ｂさせた状態（図７実線参照）でアンローディング信号を受けると、トレイ２が若干前進ａされて、ラック１０をピニオン１１に噛合させ、該ピニオン１１を正転ｃさせることによりラック１０を介してトレイ２を前進ａさせる。前記トレイ２の前進ａ状態（図２仮想線参照）で、該トレイ２上にディスクＤを載置し、ローディング信号を受けると、ピニオン１１を逆転ｄさせることによりラック１０を介してトレイ２を後進ｂさせる。
【０００４】
【特許文献１】
特許第２８６１７９３号公報
【０００５】
【発明が解決しようとする課題】
上記従来の構成では、筐体１及びトレイ２を安価に量産するために合成樹脂で成形しており、その成形歪みなどを考慮して、略Ｕ字状ガイド溝８とそれに嵌入するガイド部材６との間に若干の隙間を形成して、トレイ２の前後進ａ，ｂを円滑に行うようにしているため、図７に仮想線で示すように、アンローディング信号に基づいてトレイ２を前進ａさせたときに、ピニオン１１の正転ｃ方向への回転力によりトレイ２が傾きながら前進ａされ、該トレイ２の中心軸Ｏ１が筐体１の中心軸Ｏ２から所定角度α位置ずれされ、外観上の体裁が悪い。また、ローディング信号に基づいてトレイ２を後進ｂさせたときに、トレイ２の傾きが修正され、その修正の際に、トレイ２が横揺れしたり雑音が生じてユーザに不快感を与える。
【０００６】
本発明は、上記従来の欠点に鑑み、トレイを傾かせることなく直線的に前後進させるようにしたディスクプレーヤを提供することを目的としている。
【０００７】
上記目的を達成するため、請求項１に記載の発明は、合成樹脂製筐体の両側板部に設けた受台に左右一対のガイド部材が前後方向に沿って突設され、合成樹脂製トレイの下面両側縁に形成した各ガイド溝をそれぞれ前記各ガイド部材に嵌合させることにより、該トレイが筐体に前後進可能に配置され、前記トレイの下面に前後方向に沿ってラックが形成されると共に、該ラックに対向して筐体にピニオンが設けられており、アンローディング信号に基づいてラックに噛合するピニオンを正転させることによりラックを介してトレイを前進させ、ローディング信号に基づいてピニオンを逆転させることによりラックを介してトレイを後進させるようにしたディスクプレーヤにおいて、筐体の両側板部間に架設した横桁部の前側に略Ｊ字状弾性板が一体突設されると共に、該弾性板の先端側面に円弧状突起部が一体突設されており、該円弧状突起部を略Ｕ字状に形成した前記一方のガイド溝に挿入して該円弧状突起部の円弧面を該ガイド溝の一側面に弾性的に押し付けることにより、そのガイド溝の他側面をガイド部材の側面に接触させるようにしたことを特徴としている。
【０００８】
上記構成は実施の一形態（図１から図６参照）に対応するものであって、これによれば、トレイの略Ｕ字状ガイド溝に弾性板の円弧状突起部を挿入してその円弧面を該ガイド溝の一側面に弾性的に押し付けることにより、該ガイド溝の他側面をガイド部材の側面に接触させているから、その接触面を基準線にしてトレイを直線的に前後進させることができ、これによって、従来のように前進するトレイを傾かせることも無く、後進するトレイを横揺れさせたり雑音を発生させることも無いから、外観上の体裁が良好で、トレイを静かに前後進させることができる。
【０００９】
また、弾性板が略Ｊ字状に形成されているので、該弾性板の先端をトレイに押し付けることにより、その弾性板を全体的に撓ませて所定の弾性力を発生させ、その弾性力により略Ｕ字状ガイド溝の他側面をガイド部材の側面に確実に接触させることができる。
【００１０】
更に、弾性板の先端側面に円弧状突起部を一体突設することにより、該弾性板の先端部を太くしているので、その太くした先端部を介して弾性板からトレイに対して弾性力を確実に伝達することができると共に、前記円弧状突起部の円弧面を略Ｕ字状ガイド溝の一側面に線接触させることによりその接触抵抗を小さくしているから、該円弧状突起部がトレイの前後進に大きな障害となるおそれがなく、そのトレイをスムーズに前後進させることができる。
【００１１】
しかも、既存の筐体に弾性板を一体突設するだけでよく、また、トレイの下面に形成した既存の略Ｕ字状ガイド溝を利用して、該略Ｕ字状ガイド溝の一側面に弾性板の円弧状突起部の円弧面を押し付けるようになっており、既存のトレイをそのまま利用することができるから、経済的である。
【００１２】
請求項２に記載の発明は、合成樹脂製筐体の両側板部に設けた受台に左右一対のガイド部材が前後方向に沿って突設され、合成樹脂製トレイの下面両側縁に形成した各ガイド溝をそれぞれ前記各ガイド部材に嵌合させることにより、該トレイが筐体に前後進可能に配置され、前記トレイの下面に前後方向に沿ってラックが形成されると共に、該ラックに対向して筐体にピニオンが設けられており、アンローディング信号に基づいてラックに噛合するピニオンを正転させることによりラックを介してトレイを前進させ、ローディング信号に基づいてピニオンを逆転させることによりラックを介してトレイを後進させるようにしたディスクプレーヤにおいて、筐体の前側に略Ｊ字状弾性板が一体突設されており、該弾性板の先端をトレイに弾性的に押し付けることにより、該トレイをいずれか一方のガイド部材の側面に接触させるようにしたことを特徴としている。
【００１３】
上記構成によれば、左右一対のガイド部材に支持されたトレイに弾性板の先端を弾性的に押し付けることにより、該トレイをいずれか一方のガイド部材の側面に接触させているから、その接触面を基準線にしてトレイを前後進させることができ、これによって、従来のように前進するトレイを傾かせることも無く、後進するトレイを横揺れさせたり雑音を発生させることも無いから、外観上の体裁が良好で、トレイを静かに前後進させることができる。
【００１４】
また、弾性板が略Ｊ字状に形成されているので、該弾性板の先端をトレイに押し付けることにより、その弾性板を全体的に撓ませて所定の弾性力を発生させ、その弾性力によりトレイをいずれか一方のガイド部材の側面に確実に接触させることができる。
【００１５】
更に、既存の筐体に弾性板を一体突設するだけでよいから、設計変更に伴う費用の増加を最小に押さえることができ、経済的である。
【００１６】
請求項３に記載の発明は、請求項２に記載の発明において、前記弾性板の先端側面に円弧状突起部が一体突設されており、該円弧状突起部の円弧面をトレイに弾性的に押し付けるようにしたことを特徴としている。
【００１７】
上記構成によれば、弾性板の先端側面に円弧状突起部を一体突設することにより、該弾性板の先端部を太くしているので、その太くした先端部を介して弾性板からトレイに対して弾性力を確実に伝達することができると共に、前記円弧状突起部の円弧面をトレイに線接触させることによりその接触抵抗を小さくしているから、該円弧状突起部がトレイの前後進に大きな障害となるおそれがなく、そのトレイをスムーズに前後進させることができる。
【００１８】
請求項４に記載の発明は、請求項３に記載の発明において、前記円弧状突起部を略Ｕ字状に形成した前記一方のガイド溝に挿入して該円弧状突起部の円弧面を該ガイド溝の一側面に弾性的に押し付けることにより、そのガイド溝の他側面をガイド部材の側面に接触させるようにしたことを特徴としている。
【００１９】
上記構成によれば、トレイの下面に形成した既存の略Ｕ字状ガイド溝を利用して、該略Ｕ字状ガイド溝の一側面に弾性板の円弧状突起部の円弧面を押し付けるようになっており、既存のトレイをそのまま利用することができるから、経済的である。
【００２０】
【発明の実施の形態】
図１から図３は本発明の実施の一形態であるディスクプレーヤを示すものであって、合成樹脂製筐体１の両側板部３に設けた受台５に前後方向ａ，ｂに所定間隔をおいて突設した複数のガイド片６Ａ，７Ａからなる左右一対のガイド部材６，７が設けられ、合成樹脂製トレイ２の下面両側縁に形成した略Ｕ字状ガイド溝８と略Ｌ字状ガイド溝９とをそれぞれ各ガイド部材６，７に嵌合させ、筐体１の両側板部３間に前後一対の横桁部４が架設され、その前側横桁部４の略Ｕ字状ガイド溝８に対向する箇所に矩形貫通孔１８が貫設され、該貫通孔１８の側縁に基端を一体突設した弾性板１９の先端が略Ｕ字状ガイド溝８に挿入されている。上記以外の構成は図７及び図８に示す構成とほぼ同じであるから、同一部分に同一符号を付してその説明を省略する。
【００２１】
前記弾性板１９は、図４から図６に示すように、略Ｊ字状に形成されており、その先すぼまり状先端側面に円弧状突起部１９Ａが一体突設され、該円弧状突起部１９Ａの円弧面１９ａを略Ｕ字状ガイド溝８の一側面８ａに弾性的に押し付けることにより、該略Ｕ字状ガイド溝８の他側面８ｂを各ガイド片６Ａの側面６ａに接触させている。
【００２２】
上記構成において、トレイ２を後進ｂさせた状態（図１実線参照）でアンローディング信号を受けると、トレイ２が若干前進ａされて、ラック１０をピニオン１１に噛合させ、該ピニオン１１を正転ｃさせることによりラック１０を介してトレイ２を前進ａさせる。このとき、弾性板１９により略Ｕ字状ガイド溝８の他側面８ｂが各ガイド片６Ａの側面６ａに接触されているので、その接触面を基準線Ｌにしてトレイ２が直線的に前進ａされ、トレイ２の中心軸Ｏ１を筐体１の中心軸Ｏ２から位置ずれさせることがない。前記トレイ２を最前進ａさせた状態（図１仮想線参照）で、そのトレイ２上にディスクＤを載置し、ローディング信号を受けると、ピニオン１１を逆転ｄさせることによりラック１０を介してトレイ２を基準線Ｌに沿って直線的に後進ｂさせる。
【００２３】
上記構成によれば、トレイ２の略Ｕ字状ガイド溝８に弾性板１９の円弧状突起部１９Ａを挿入してその円弧面１９ａを該ガイド溝８の一側面８ａに弾性的に押し付けることにより、該ガイド溝８の他側面８ｂをガイド部材６Ａの側面６ａに接触させているから、その接触面を基準線Ｌにしてトレイ２を直線的に前後方向ａ，ｂに移動させることができ、これによって、従来のように前進ａするトレイ２を傾かせることも無く、後進ｂするトレイ２を横揺れさせたり雑音を発生させることも無いから、外観上の体裁が良好で、トレイ２を静かに前後進させることができる。
【００２４】
また、弾性板１９が略Ｊ字状に形成されているので、該弾性板１９の先端をトレイ２に押し付けることにより、その弾性板１９を全体的に撓ませて所定の弾性力を発生させ、その弾性力により略Ｕ字状ガイド溝８の他側面８ｂを各ガイド片６Ａの側面６ａに確実に接触させることができる。
【００２５】
更に、弾性板１９の先端側面に円弧状突起部１９Ａを一体突設することにより、該弾性板１９の先端部を太くしているので、その太くした先端部を介して弾性板１９からトレイ２に対して弾性力を確実に伝達することができると共に、前記円弧状突起部１９Ａの円弧面１９ａを略Ｕ字状ガイド溝８の一側面８ａに線接触させることによりその接触抵抗を小さくしているから、該円弧状突起部１９Ａがトレイ２の前後方向ａ，ｂの移動に大きな障害となるおそれがなく、そのトレイ２をスムーズに前後進させることができる。
【００２６】
しかも、既存の筐体１に弾性板１９を一体突設するだけでよく、また、トレイ２の下面に形成した既存の略Ｕ字状ガイド溝８を利用して、該略Ｕ字状ガイド溝８の一側面８ａに弾性板１９の円弧状突起部１９Ａの円弧面１９ａを押し付けるようになっており、既存のトレイ２をそのまま利用することができるから、経済的である。
【００２７】
上記の実施の形態では、弾性板１９を略Ｕ字状ガイド溝８の一側面８ａに押し付けるようにしたが、これに限定されるわけではなく、弾性板１９を例えばトレイ２の略Ｌ字状ガイド溝９側の外側面に押し付けることにより、略Ｕ字状ガイド溝８の他側面８ｂを各ガイド片６Ａの側面６ａに接触させるようにしてもよい。
【００２８】
【発明の効果】
請求項１に記載の発明によれば、実施の一形態（図１から図６参照）に示すように、トレイの略Ｕ字状ガイド溝に弾性板の円弧状突起部を挿入してその円弧面を該ガイド溝の一側面に弾性的に押し付けることにより、該ガイド溝の他側面をガイド部材の側面に接触させているから、その接触面を基準線にしてトレイを直線的に前後進させることができ、これによって、従来のように前進するトレイを傾かせることも無く、後進するトレイを横揺れさせたり雑音を発生させることも無いから、外観上の体裁が良好で、トレイを静かに前後進させることができる。
【００２９】
また、弾性板が略Ｊ字状に形成されているので、該弾性板の先端をトレイに押し付けることにより、その弾性板を全体的に撓ませて所定の弾性力を発生させ、その弾性力により略Ｕ字状ガイド溝の他側面をガイド部材の側面に確実に接触させることができる。
【００３０】
更に、弾性板の先端側面に円弧状突起部を一体突設することにより、該弾性板の先端部を太くしているので、その太くした先端部を介して弾性板からトレイに対して弾性力を確実に伝達することができると共に、前記円弧状突起部の円弧面を略Ｕ字状ガイド溝の一側面に線接触させることによりその接触抵抗を小さくしているから、該円弧状突起部がトレイの前後進に大きな障害となるおそれがなく、そのトレイをスムーズに前後進させることができる。
【００３１】
しかも、既存の筐体に弾性板を一体突設するだけでよく、また、トレイの下面に形成した既存の略Ｕ字状ガイド溝を利用して、該略Ｕ字状ガイド溝の一側面に弾性板の円弧状突起部の円弧面を押し付けるようになっており、既存のトレイをそのまま利用することができるから、経済的である。
【００３２】
請求項２に記載の発明によれば、左右一対のガイド部材に支持されたトレイに弾性板の先端を弾性的に押し付けることにより、該トレイをいずれか一方のガイド部材の側面に接触させているから、その接触面を基準線にしてトレイを前後進させることができ、これによって、従来のように前進するトレイを傾かせることも無く、後進するトレイを横揺れさせたり雑音を発生させることも無いから、外観上の体裁が良好で、トレイを静かに前後進させることができる。
【００３３】
また、弾性板が略Ｊ字状に形成されているので、該弾性板の先端をトレイに押し付けることにより、その弾性板を全体的に撓ませて所定の弾性力を発生させ、その弾性力によりトレイをいずれか一方のガイド部材の側面に確実に接触させることができる。
【００３４】
更に、既存の筐体に弾性板を一体突設するだけでよいから、設計変更に伴う費用の増加を最小に押さえることができ、経済的である。
【００３５】
請求項３に記載の発明によれば、弾性板の先端側面に円弧状突起部を一体突設することにより、該弾性板の先端部を太くしているので、その太くした先端部を介して弾性板からトレイに対して弾性力を確実に伝達することができると共に、前記円弧状突起部の円弧面をトレイに線接触させることによりその接触抵抗を小さくしているから、該円弧状突起部がトレイの前後進に大きな障害となるおそれがなく、そのトレイをスムーズに前後進させることができる。
【００３６】
請求項４に記載の発明によれば、トレイの下面に形成した既存の略Ｕ字状ガイド溝を利用して、該略Ｕ字状ガイド溝の一側面に弾性板の円弧状突起部の円弧面を押し付けるようになっており、既存のトレイをそのまま利用することができるから、経済的である。
【図面の簡単な説明】
【図１】本発明の実施の一形態であるディスクプレーヤの平面図である。
【図２】図１のＡ−Ａ矢視図である。
【図３】同筐体を示す斜視図である。
【図４】同要部の分解斜視図である。
【図５】同要部の拡大横断面図である。
【図６】同要部の拡大水平断面図である。
【図７】従来例の平面図である。
【図８】図７のＢ−Ｂ矢視図である。
【符号の説明】
１筐体
２トレイ
３側板部
４横桁部
５受台
６ガイド部材
７ガイド部材
８略Ｕ字状ガイド溝
９略Ｌ字状ガイド溝
１０ラック
１１ピニオン
１９弾性板
１９Ａ円弧状突起部
１９ａ円弧面
ａ，ｂ前後方向
Ｄディスク[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disc player for reproducing, recording or erasing an optical disc such as a CD or a DVD or a magneto-optical disc (hereinafter abbreviated as a disc).
[0002]
[Prior art]
Conventionally, as a disk player technique, there is one described in Patent Document 1 and the like, and an example thereof will be described based on FIGS. 7 and 8. This has a casing 1 and a tray 2 made of synthetic resin. The housing 1 includes a pair of left and right side plate portions 3 and a lateral girder portion 4 installed between the side plate portions 3. A pair of left and right sides are mounted on a cradle 5 protruding from the inner surface of each side plate portion 3. Guide members 6 and 7 are projected along the front-rear directions a and b. Further, a substantially U-shaped guide groove 8 is formed on one side edge of the lower surface of the tray 2, and a substantially L-shaped guide groove 9 is formed on the other side edge of the lower surface. A rack 10 is formed in the vicinity of one side edge of the lower surface of the tray 2 along the front-rear directions a and b. The rack 10 is opposed to the rack 10 at the front of the housing 1. A pinion 11 is provided on the cross beam 4. In FIG. 7, 12 is an optical pickup, 13 is a turntable for rotating the disk D, 14 is a tray lifting prevention piece projecting from each side plate portion 3, and 15 is projecting from the rear end of both sides of the tray 2. A stopper 16 is projected from the front end of each side plate portion 3 so as to face each of the retaining pieces 15.
[0003]
In the above configuration, when an unloading signal is received in a state where the tray 2 is moved backward b (see the solid line in FIG. 7), the tray 2 is slightly moved forward a to engage the rack 10 with the pinion 11 and rotate the pinion 11 forward. By moving c, the tray 2 is advanced a through the rack 10. In advancing a state of the tray 2 (see FIG. 2 phantom), placing the disc D on the tray 2 receives the loading signal, the tray 2 via the rack 10 by causing the pinion 11 to reverse d Is moved backward b.
[0004]
[Patent Document 1]
Japanese Patent No. 2861793 gazette
[Problems to be solved by the invention]
In the above conventional configuration, the casing 1 and the tray 2 are molded of synthetic resin for mass production at a low cost. Considering the molding distortion and the like, the substantially U-shaped guide groove 8 and the guide member 6 fitted therein are inserted. Since a slight gap is formed between the tray 2 and the tray 2 so as to smoothly move forward and backward a and b, the tray 2 is moved forward based on the unloading signal as indicated by a virtual line in FIG. When a, the tray 2 is moved forward a while being tilted by the rotational force of the pinion 11 in the forward rotation c direction, and the central axis O1 of the tray 2 is displaced from the central axis O2 of the housing 1 by a predetermined angle α. Appearance is bad. Further, when the tray 2 is moved backward b based on the loading signal, the inclination of the tray 2 is corrected, and when the correction is made, the tray 2 shakes or generates noise, giving the user an unpleasant feeling.
[0006]
The present invention has been made in view of the above-described conventional drawbacks, and an object of the present invention is to provide a disc player in which the tray is moved back and forth linearly without tilting.
[0007]
In order to achieve the above object, according to the first aspect of the present invention, a pair of left and right guide members project along the front-rear direction on a pedestal provided on both side plates of a synthetic resin casing, and the synthetic resin tray By fitting the guide grooves formed on both side edges of the lower surface of each of the guide members to the respective guide members, the tray is arranged to be movable forward and backward in the housing, and a rack is formed on the lower surface of the tray along the front-rear direction. In addition, a pinion is provided in the housing so as to face the rack, and the tray is moved forward through the rack by rotating the pinion meshing with the rack based on the unloading signal, and based on the loading signal. In a disc player in which the tray is moved backward through the rack by reversing the pinion, a substantially J-shaped elastic plate is provided on the front side of the cross beam portion installed between the both side plate portions of the housing. While being integrally projecting, arc-shaped protrusions at the tip side of the elastic plate is integrally projected, circle by inserting the circular arc projections on the one guide groove formed in a substantially U shape It is characterized in that the other side surface of the guide groove is brought into contact with the side surface of the guide member by elastically pressing the arc surface of the arc-shaped projection portion against one side surface of the guide groove.
[0008]
The above-described configuration corresponds to an embodiment (see FIGS. 1 to 6). According to this, the arc-shaped protrusion of the elastic plate is inserted into the substantially U-shaped guide groove of the tray, and the arc Since the other side surface of the guide groove is brought into contact with the side surface of the guide member by elastically pressing the surface against one side surface of the guide groove, the tray is linearly moved forward and backward with the contact surface as a reference line. As a result, there is no tilting of the tray that moves forward as in the past, and the tray that moves backward does not roll or generate noise. It can be moved forward and backward.
[0009]
In addition, since the elastic plate is formed in a substantially J shape, the elastic plate is entirely bent by pressing the tip of the elastic plate against the tray to generate a predetermined elastic force. The other side surface of the substantially U-shaped guide groove can be reliably brought into contact with the side surface of the guide member.
[0010]
Furthermore, since the arc-shaped protrusion is integrally provided on the tip side surface of the elastic plate so that the tip of the elastic plate is thickened, an elastic force is applied from the elastic plate to the tray via the thickened tip. Since the contact resistance is reduced by bringing the arc surface of the arc-shaped projection portion into line contact with one side surface of the substantially U-shaped guide groove, the arc-shaped projection portion is There is no risk of a major obstacle to the forward and backward movement of the tray, and the tray can be smoothly moved forward and backward.
[0011]
In addition, it is only necessary to integrally project an elastic plate on an existing housing, and an existing substantially U-shaped guide groove formed on the lower surface of the tray is used to form one side surface of the substantially U-shaped guide groove. Since the arc surface of the arc-shaped protrusion of the elastic plate is pressed and the existing tray can be used as it is, it is economical.
[0012]
According to the second aspect of the present invention, a pair of left and right guide members project along the front-rear direction on the pedestals provided on both side plates of the synthetic resin casing, and are formed on both side edges of the lower surface of the synthetic resin tray. By fitting each guide groove to each guide member, the tray is disposed so as to be able to move forward and backward in the housing, and a rack is formed on the lower surface of the tray along the front-rear direction and is opposed to the rack. The housing is provided with a pinion, the tray is moved forward through the rack by rotating the pinion meshing with the rack based on the unloading signal, and the pinion is reversed by rotating the pinion based on the loading signal. in the disk player which is adapted to reverse the tray through a substantially J-shaped elastic plate on the front side of the housing is integrally projected elastically tip of the elastic plate to the tray By pressing, it is characterized in that so as to contact with the side surface of one of the guide members the tray.
[0013]
According to the above configuration, since the tip of the elastic plate is elastically pressed against the tray supported by the pair of left and right guide members, the tray is brought into contact with the side surface of one of the guide members. This makes it possible to move the tray forward and backward with respect to the reference line, which does not tilt the tray that moves forward as in the past, and does not cause the side tray to roll or generate noise. The appearance is good, and the tray can be moved forward and backward gently.
[0014]
In addition, since the elastic plate is formed in a substantially J shape, the elastic plate is entirely bent by pressing the tip of the elastic plate against the tray to generate a predetermined elastic force. The tray can be reliably brought into contact with the side surface of one of the guide members.
[0015]
Furthermore, since it is only necessary to provide an elastic plate integrally with an existing housing, an increase in cost associated with a design change can be minimized, which is economical.
[0016]
According to a third aspect of the present invention, in the second aspect of the present invention, an arc-shaped projection is integrally provided on the tip side surface of the elastic plate, and the arc-shaped projection of the arc-shaped projection is elastic to the tray. It is characterized in that it is pressed against .
[0017]
According to the above configuration, the arc-shaped protrusion is integrally provided on the tip side surface of the elastic plate so that the tip of the elastic plate is thickened. Therefore, the elastic plate is transferred to the tray via the thickened tip. On the other hand, the elastic force can be reliably transmitted, and the arc resistance of the arcuate protrusion is reduced by bringing the arcuate surface of the arcuate protrusion into line contact with the tray. Therefore, the tray can be smoothly moved forward and backward.
[0018]
According to a fourth aspect of the present invention, in the third aspect of the present invention, the arcuate protrusion is inserted into the one guide groove formed in a substantially U shape so that the arcuate surface of the arcuate protrusion is It is characterized in that the other side surface of the guide groove is brought into contact with the side surface of the guide member by being elastically pressed against one side surface of the guide groove .
[0019]
According to the above configuration, using the existing substantially U-shaped guide groove formed on the lower surface of the tray, the arc surface of the arc-shaped protrusion of the elastic plate is pressed against one side surface of the approximately U-shaped guide groove. This is economical because existing trays can be used as they are.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
1 to 3 show a disc player according to an embodiment of the present invention, in which a receiving base 5 provided on both side plate portions 3 of a synthetic resin casing 1 is placed at predetermined intervals in the front and rear directions a and b. A pair of left and right guide members 6, 7 made up of a plurality of guide pieces 6 </ b> A, 7 </ b> A projecting from each other is provided, and a substantially U-shaped guide groove 8 and a substantially L-shape formed on both sides of the lower surface of the synthetic resin tray 2 A pair of front and rear cross beam portions 4 are installed between the side plate portions 3 of the housing 1, and the front cross beam portion 4 is substantially U-shaped. A rectangular through-hole 18 is provided at a location facing the guide groove 8, and the distal end of an elastic plate 19 having a base end integrally protruding from the side edge of the through-hole 18 is inserted into the substantially U-shaped guide groove 8. . Since the configuration other than the above is substantially the same as the configuration shown in FIGS. 7 and 8, the same parts are denoted by the same reference numerals and the description thereof is omitted.
[0021]
As shown in FIGS. 4 to 6, the elastic plate 19 is formed in a substantially J-shape, and an arc-shaped projection 19A is integrally projected on the tip end side surface of the tip. By elastically pressing the arcuate surface 19a of the portion 19A against one side surface 8a of the substantially U-shaped guide groove 8, the other side surface 8b of the substantially U-shaped guide groove 8 is brought into contact with the side surface 6a of each guide piece 6A. Yes.
[0022]
In the above configuration, when the unloading signal is received in the state where the tray 2 is moved backward b (see the solid line in FIG. 1), the tray 2 is slightly moved forward a, and the rack 10 is engaged with the pinion 11 and the pinion 11 is rotated forward. By moving c, the tray 2 is advanced a through the rack 10. At this time, since the other side surface 8b of the substantially U-shaped guide groove 8 is in contact with the side surface 6a of each guide piece 6A by the elastic plate 19, the tray 2 advances linearly a with the contact surface as the reference line L. Thus, the center axis O 1 of the tray 2 is not displaced from the center axis O 2 of the housing 1. When the tray 2 is moved forward a (see the phantom line in FIG. 1), a disk D is placed on the tray 2 and when a loading signal is received, the pinion 11 is reversed d through the rack 10. The tray 2 is moved backward b linearly along the reference line L.
[0023]
According to the above configuration, the arcuate protrusion 19A of the elastic plate 19 is inserted into the substantially U-shaped guide groove 8 of the tray 2, and the arcuate surface 19a is elastically pressed against the one side surface 8a of the guide groove 8. Since the other side surface 8b of the guide groove 8 is in contact with the side surface 6a of the guide member 6A, the tray 2 can be moved linearly in the front-rear directions a and b with the contact surface as the reference line L. As a result, the tray 2 that moves forward a does not tilt, and the tray 2 that moves backward b does not roll or generate noise as in the prior art, so the appearance is good and the tray 2 is quiet. Can move forward and backward.
[0024]
Further, since the elastic plate 19 is formed in a substantially J shape, pressing the tip of the elastic plate 19 against the tray 2 causes the elastic plate 19 to bend as a whole to generate a predetermined elastic force, Due to the elastic force, the other side surface 8b of the substantially U-shaped guide groove 8 can be reliably brought into contact with the side surface 6a of each guide piece 6A.
[0025]
Further, since the arc-shaped protrusion 19A is integrally provided on the front end side surface of the elastic plate 19, the front end portion of the elastic plate 19 is thickened, so that the tray 2 is moved from the elastic plate 19 through the thickened front end portion. In addition, the elastic force can be reliably transmitted to the arcuate protrusion 19A, and the arcuate surface 19a of the arcuate protrusion 19A is brought into line contact with the one side surface 8a of the substantially U-shaped guide groove 8 to reduce the contact resistance. Therefore, there is no possibility that the arcuate protrusion 19A becomes a major obstacle to the movement of the tray 2 in the front-rear direction a, b, and the tray 2 can be smoothly moved back and forth.
[0026]
Moreover, it is only necessary to integrally project the elastic plate 19 on the existing housing 1, and the substantially U-shaped guide groove 8 is formed by using the existing substantially U-shaped guide groove 8 formed on the lower surface of the tray 2. 8 is pressed against the arcuate surface 19a of the arcuate projection 19A of the elastic plate 19, and the existing tray 2 can be used as it is, which is economical.
[0027]
In the above embodiment, the elastic plate 19 is pressed against the one side surface 8a of the substantially U-shaped guide groove 8. However, the present invention is not limited to this, and the elastic plate 19 is, for example, substantially L-shaped on the tray 2. The other side surface 8b of the substantially U-shaped guide groove 8 may be brought into contact with the side surface 6a of each guide piece 6A by pressing against the outer surface on the guide groove 9 side.
[0028]
【The invention's effect】
According to the first aspect of the present invention, as shown in one embodiment (see FIGS. 1 to 6), the arc-shaped protrusion of the elastic plate is inserted into the substantially U-shaped guide groove of the tray, and the arc Since the other side surface of the guide groove is brought into contact with the side surface of the guide member by elastically pressing the surface against one side surface of the guide groove, the tray is linearly moved forward and backward with the contact surface as a reference line. As a result, there is no tilting of the tray that moves forward as in the past, and the tray that moves backward does not roll or generate noise. It can be moved forward and backward.
[0029]
In addition, since the elastic plate is formed in a substantially J shape, the elastic plate is entirely bent by pressing the tip of the elastic plate against the tray to generate a predetermined elastic force. The other side surface of the substantially U-shaped guide groove can be reliably brought into contact with the side surface of the guide member.
[0030]
Furthermore, since the arc-shaped protrusion is integrally provided on the tip side surface of the elastic plate so that the tip of the elastic plate is thickened, an elastic force is applied from the elastic plate to the tray via the thickened tip. Since the contact resistance is reduced by bringing the arc surface of the arc-shaped projection portion into line contact with one side surface of the substantially U-shaped guide groove, the arc-shaped projection portion is There is no risk of a major obstacle to the forward and backward movement of the tray, and the tray can be smoothly moved forward and backward.
[0031]
In addition, it is only necessary to integrally project an elastic plate on an existing housing, and an existing substantially U-shaped guide groove formed on the lower surface of the tray is used to form one side surface of the substantially U-shaped guide groove. Since the arc surface of the arc-shaped protrusion of the elastic plate is pressed and the existing tray can be used as it is, it is economical.
[0032]
According to the second aspect of the present invention, the end of the elastic plate is elastically pressed against the tray supported by the pair of left and right guide members, thereby bringing the tray into contact with the side surface of one of the guide members. Therefore, the tray can be moved forward and backward with the contact surface as a reference line, which does not incline the tray that moves forward as in the past, and can cause the tray that moves backward to roll or generate noise. Since there is no appearance, the appearance is good and the tray can be moved back and forth gently.
[0033]
In addition, since the elastic plate is formed in a substantially J shape, the elastic plate is entirely bent by pressing the tip of the elastic plate against the tray to generate a predetermined elastic force. The tray can be reliably brought into contact with the side surface of one of the guide members.
[0034]
Furthermore, since it is only necessary to provide an elastic plate integrally with an existing housing, an increase in cost associated with a design change can be minimized, which is economical.
[0035]
According to the invention described in claim 3, since the tip end portion of the elastic plate is thickened by integrally projecting the arc-shaped protrusion on the tip side surface of the elastic plate, The elastic force can be reliably transmitted from the elastic plate to the tray, and the arc resistance of the arc-shaped projection is reduced by bringing the arc surface of the arc-shaped projection into line contact with the tray. However, there is no possibility that the tray will be a major obstacle to the forward and backward movement of the tray, and the tray can be smoothly moved forward and backward.
[0036]
According to the fourth aspect of the present invention, the arc of the arc-shaped protrusion of the elastic plate is formed on one side surface of the substantially U-shaped guide groove using the existing substantially U-shaped guide groove formed on the lower surface of the tray. Since the surface is pressed, the existing tray can be used as it is, which is economical.
[Brief description of the drawings]
FIG. 1 is a plan view of a disc player according to an embodiment of the present invention.
FIG. 2 is an AA arrow view of FIG.
FIG. 3 is a perspective view showing the housing.
FIG. 4 is an exploded perspective view of the main part.
FIG. 5 is an enlarged cross-sectional view of the main part.
FIG. 6 is an enlarged horizontal sectional view of the main part.
FIG. 7 is a plan view of a conventional example.
8 is a BB arrow view of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Housing | casing 2 Tray 3 Side board part 4 Horizontal girder part 5 Receptacle 6 Guide member 7 Guide member 8 Substantially U-shaped guide groove 9 Substantially L-shaped guide groove 10 Rack 11 Pinion 19 Elastic plate 19A Arc-shaped protrusion 19a Arc surface a, b Front-back direction D disc

Claims

A pair of left and right guide members project along the front-rear direction on a pedestal provided on both side plates of the synthetic resin casing, and the guide grooves formed on both side edges of the lower surface of the synthetic resin tray The tray is disposed so as to be able to move forward and backward in the housing, and a rack is formed on the lower surface of the tray along the front-rear direction, and a pinion is provided on the housing so as to face the rack. The tray is moved forward via the rack by rotating the pinion meshing with the rack based on the unloading signal, and the tray is moved backward via the rack by reversing the pinion based on the loading signal. In the disc player, a substantially J-shaped elastic plate is integrally projected on the front side of the cross beam portion laid between the two side plate portions of the housing, and an arc is formed on the front side surface of the elastic plate. Protrusion is integrally projected resiliently the arcuate surface of the circular arc protrusion by inserting the circular arc projections on the one guide groove formed in a substantially U shape on one side surface of the guide groove A disc player wherein the other side surface of the guide groove is brought into contact with the side surface of the guide member by being pressed against the guide member.

A pair of left and right guide members project along the front-rear direction on a pedestal provided on both side plates of the synthetic resin casing, and the guide grooves formed on both side edges of the lower surface of the synthetic resin tray The tray is disposed so as to be able to move forward and backward in the housing, and a rack is formed on the lower surface of the tray along the front-rear direction, and a pinion is provided on the housing so as to face the rack. The tray is moved forward via the rack by rotating the pinion meshing with the rack based on the unloading signal, and the tray is moved backward via the rack by reversing the pinion based on the loading signal. in the disk player, a substantially J-shaped elastic plate on the front side of the housing is integrally protruded, by pressing elastically the tip of the elastic plate to the tray, Disc player, wherein a tray and so as to contact with the side surface of one of the guide members.

3. The disc player according to claim 2 , wherein an arc-shaped protrusion is integrally projected on the front end side surface of the elastic plate, and the arc surface of the arc-shaped protrusion is elastically pressed against the tray. .

By inserting the arcuate protrusion into the one guide groove formed in a substantially U shape and elastically pressing the arcuate surface of the arcuate protrusion against one side surface of the guide groove, 4. The disc player according to claim 3 , wherein the side surface is brought into contact with the side surface of the guide member .