JPH0621086Y2 - Pickup lead screw mounting mechanism for disc type recording medium playback device - Google Patents

Pickup lead screw mounting mechanism for disc type recording medium playback device

Info

Publication number
JPH0621086Y2
JPH0621086Y2 JP3421888U JP3421888U JPH0621086Y2 JP H0621086 Y2 JPH0621086 Y2 JP H0621086Y2 JP 3421888 U JP3421888 U JP 3421888U JP 3421888 U JP3421888 U JP 3421888U JP H0621086 Y2 JPH0621086 Y2 JP H0621086Y2
Authority
JP
Japan
Prior art keywords
pickup
feed screw
piece
screw
recording medium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP3421888U
Other languages
Japanese (ja)
Other versions
JPH01138262U (en
Inventor
国男 城戸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tanashin Denki Co Ltd
Original Assignee
Tanashin Denki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tanashin Denki Co Ltd filed Critical Tanashin Denki Co Ltd
Priority to JP3421888U priority Critical patent/JPH0621086Y2/en
Publication of JPH01138262U publication Critical patent/JPH01138262U/ja
Application granted granted Critical
Publication of JPH0621086Y2 publication Critical patent/JPH0621086Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Moving Of Heads (AREA)

Description

【考案の詳細な説明】 (産業上の利用分野) 本考案は、ピックアップ送りねじの回転負荷の減少とス
ラスト方向の移動防止を図ったディスク型記録媒体再生
装置のピックアップ送りねじ取付機構に関する。
DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a pickup feed screw mounting mechanism for a disc-type recording medium reproducing device, in which the rotational load of the pickup feed screw is reduced and movement in the thrust direction is prevented.

(従来の技術) CD(Compact Disk)等の、いわゆるディスク型記録媒体
に記録された情報を読取るための再生装置は、記録媒体
を回転させながら、ピックアップより記録媒体の記録面
にレーザ光を照射して、その反射光をもとに情報を読取
るようになっている。この場合、ピックアップを固定し
た状態で、対物レンズの傾き角を連続的に変化させるこ
とにより、レーザ光の照射方向を記録媒体の半径方向外
方へ連続的に移動させ、その移動量が一定値に適したと
ころで、ピックアップを一定量(例えば0.5mm)半径方
向外方へ送り(ピッチ送り)、同様の動作を繰り返す。
(Prior Art) A reproducing apparatus for reading information recorded on a so-called disk type recording medium such as a CD (Compact Disk) irradiates a recording surface of the recording medium with laser light from a pickup while rotating the recording medium. Then, the information is read based on the reflected light. In this case, by continuously changing the tilt angle of the objective lens with the pickup fixed, the irradiation direction of the laser light is continuously moved outward in the radial direction of the recording medium, and the movement amount is a constant value. Then, the pickup is fed a fixed amount (for example, 0.5 mm) outward in the radial direction (pitch feed), and the same operation is repeated.

この種の再生装置におけるピックアップの送り動作は、
送りねじに、ピックアップの一部に取付けたナットを螺
合させておき、送りねじをモータによって一定量ずつ回
転させることによって行なわれる。
The feed operation of the pickup in this type of playback device is
This is performed by screwing a nut attached to a part of the pickup onto the feed screw and rotating the feed screw by a constant amount by a motor.

そこで、ピックアップの送り量を高精度に管理すること
は、情報の読取精度を高める上で極めて重要であり、送
りねじを再生装置に取付けるための機構のいずれも、ピ
ックアップの送り精度に影響を及ぼす要因となる。
Therefore, it is extremely important to manage the feed amount of the pickup with high accuracy in order to improve the information reading accuracy, and any mechanism for attaching the feed screw to the reproducing device affects the feed accuracy of the pickup. It becomes a factor.

第5図は従来のピックアップ送りねじ取付機構を示すも
ので、図中aはピックアップ、bはこのピックアップa
を矢印A,B方向に送り動作させるピックアップ送りね
じbである。送りねじbは、その一端を剛性ストッパc
によって軸方向より受けられ、他端には当接片dを対向
配置して、この当接片dを板ばねeにより送りねじbに
押付けて、送りねじbの軸方向への移動を規制するよう
にしている。
FIG. 5 shows a conventional pickup feed screw mounting mechanism, in which a is a pickup and b is the pickup a.
Is a pick-up feed screw b for feeding and moving in the directions of arrows A and B. The feed screw b has a rigid stopper c at one end.
The contact piece d is axially received by the other end, and the contact piece d is disposed opposite to the other end, and the contact piece d is pressed against the feed screw b by the leaf spring e to regulate the movement of the feed screw b in the axial direction. I am trying.

(考案が解決しようとする課題) ディスク型記録媒体再生装置では、ピックアップの送り
量を極めて高精度に管理する必要がある。しかしなが
ら、斯かる従来のピックアップ送りねじ取付機構にあっ
ては、ピックアップ送りねじbを常時板ばねeによりス
ラスト方向へ押しているので、この押圧力がピックアッ
プ送りねじbの回転動作を阻害する要因として作用し、
送りねじbの回転量を高精度に管理することが困難にな
る結果、ピックアップの送り量の高精度な管理も困難と
なる問題があった。
(Problems to be Solved by the Invention) In a disc-type recording medium reproducing apparatus, it is necessary to control the feed amount of a pickup with extremely high accuracy. However, in such a conventional pickup feed screw mounting mechanism, since the pickup feed screw b is constantly pushed in the thrust direction by the leaf spring e, this pressing force acts as a factor that hinders the rotational movement of the pickup feed screw b. Then
As a result of difficult control of the rotation amount of the feed screw b with high precision, there is a problem that it is also difficult to control the feed amount of the pickup with high precision.

しかるに、この板ばねeによる押圧力を小さくすると、
ピックアップ送りねじb自体がスラスト方向へ移動し易
くなり、ディスク型記録媒体の記録面に対するピックア
ップaの位置が大幅にずれるおそれがあるので、ばね圧
を小さくするわけにもいかなかった。
However, if the pressing force of this leaf spring e is reduced,
Since the pickup feed screw b itself tends to move in the thrust direction and the position of the pickup a with respect to the recording surface of the disk-type recording medium may be significantly displaced, the spring pressure cannot be reduced.

本考案は上記事情に鑑みてなされたもので、ピックアッ
プ送りねじの回転動作を阻害する要因を排除して、しか
も、ピックアップ送りねじのスラスト方向の移動防止を
も図り、ピックアップの送り量を高精度に管理し得るデ
ィスク型記録媒体再生装置のピックアップ送りねじ取付
機構を提供することを目的としている。
The present invention has been made in view of the above circumstances, and eliminates a factor that impedes the rotational movement of the pickup feed screw, and also prevents the pickup feed screw from moving in the thrust direction, thereby achieving a highly accurate pickup feed amount. It is an object of the present invention to provide a pickup feed screw mounting mechanism for a disc-type recording medium reproducing apparatus that can be managed according to the present invention.

(課題を解決するための手段) ピックアップ送りねじの一端を剛性ストッパで受け、こ
のピックアップ送りねじの他端には当接片を当接させ
て、この当接片の外側に板ばねを対向配置し、この板ば
ねを基板に対して取付ねじにより取り付け、且つ、この
取付ねじで前記板ばねと当接片との間の隙間調節を行な
うようにした。
(Means for Solving the Problem) One end of the pick-up feed screw is received by a rigid stopper, a contact piece is brought into contact with the other end of the pick-up feed screw, and a leaf spring is arranged opposite to the outer side of the contact piece. Then, the leaf spring is attached to the substrate with a mounting screw, and the mounting screw adjusts the gap between the leaf spring and the contact piece.

(作用) 取付ねじの締付力を加減して、板ばねと当接片との間の
隙間を目標値“0”とするべく調節すると、ピックアッ
プ送りねじの回転負荷が減少すると共に、ピックアップ
送りねじがスラスト方向へ移動しない。
(Operation) When the tightening force of the mounting screw is adjusted to adjust the gap between the leaf spring and the contact piece to the target value "0", the rotational load of the pickup feed screw is reduced and the pickup feed screw is moved. The screw does not move in the thrust direction.

(実施例) 以下、本考案の一実施例を第1図乃至第3図に基づき説
明する。第1図は本考案を適用したディスク型記録媒体
再生装置の一部を切欠した斜視図、第2図は本考案のピ
ックアップ送りねじ取付機構の下面図、第3図は第2図
のIII−III線に沿う断面図であり、図中1はディスク型
記録媒体再生装置で、その略中央部には再生部2が取り
付けられている。この再生部2は、従来と同様に、モー
タ3にて回転駆動されるターンテーブル4と、クランパ
5と、ピックアップ6とを備えている。
(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. FIG. 1 is a perspective view of a disk-type recording medium reproducing apparatus to which the present invention is applied, with a part cut away, FIG. 2 is a bottom view of a pickup feed screw mounting mechanism of the present invention, and FIG. 3 is III- of FIG. FIG. 3 is a cross-sectional view taken along the line III, in which 1 is a disk-type recording medium reproducing apparatus, and a reproducing section 2 is attached to a substantially central portion thereof. The reproducing unit 2 includes a turntable 4, which is rotationally driven by a motor 3, a clamper 5, and a pickup 6 as in the conventional case.

モータ3は、基板7の下面に一対の取付ねじ8で固定さ
れている。このモータ3の回転軸9は基板7の上面側に
突出され、この回転軸9にターンテーブル4が固定され
ている。
The motor 3 is fixed to the lower surface of the substrate 7 with a pair of mounting screws 8. The rotation shaft 9 of the motor 3 is projected to the upper surface side of the substrate 7, and the turntable 4 is fixed to the rotation shaft 9.

クランパ5は、基板7の上方に位置して回転軸9の軸方
向に移動自在に設けられた保持板10に板ばねより成る
ホルダ11を介して保持されて、ターンテーブル4と対
向している。
The clamper 5 is held by a holding plate 10 which is located above the substrate 7 and is movable in the axial direction of the rotary shaft 9 via a holder 11 made of a leaf spring, and faces the turntable 4. .

基板7の下面には、第2図に示すように、合成樹脂製の
一対のピックアップ支持台12a,12bがそれぞれね
じ止めされ、両支持台12a,12b間に一対のガイド
杆13a,13bが、互いに平行に取付けられている。
そして、これら一対のガイド杆13a,13bに、ピッ
クアップ6の下端部が、基板7の下面と平行に移動自在
に装着されている。ピックアップ6の下端部一側にはね
じ孔14が設けられている。また、前記一対のピックア
ップ支持台12a,12b間には前記ガイド杆12,1
3と平行なピックアップ送りねじ15が支持されてお
り、ピックアップ6のねじ孔14が、この送りねじ15
に螺合されている。ピックアップ6の上端部は、基板7
に設けられた開口部7a内を移動可能に介して基板7の
上面側に延出している。そして、ピックアップ送りねじ
15が正逆回転するのに伴うねじ送り作用で、ピックア
ップ6が第2図及び第3図中矢印A,B方向に移動する
ようになっている。
As shown in FIG. 2, a pair of pickup support bases 12a and 12b made of synthetic resin are respectively screwed to the lower surface of the substrate 7, and a pair of guide rods 13a and 13b are provided between the support bases 12a and 12b. Mounted parallel to each other.
The lower end of the pickup 6 is movably mounted on the pair of guide rods 13a and 13b in parallel with the lower surface of the substrate 7. A screw hole 14 is provided on one side of the lower end of the pickup 6. The guide rods 12, 1 are provided between the pair of pickup support bases 12a, 12b.
3 is supported by a pickup feed screw 15 which is parallel to the feed screw 15.
It is screwed to. The upper end of the pickup 6 is the substrate 7
Extends to the upper surface side of the substrate 7 through the inside of the opening 7a provided in the substrate. The pickup 6 is moved in the directions of arrows A and B in FIGS. 2 and 3 by the screw feeding action that accompanies the forward rotation of the pickup feed screw 15.

ピックアップ送りねじ15は、その両端部が、各ピック
アップ支持台12a,12bに一体形成された軸受1
6,17に、回転自在に且つ軸方向に移動自在に支持さ
れている。ピックアップ送りねじ15の一端(第3図中
右端)は、一端側の軸受16と一体に設けられた剛性ス
トッパ18によって軸方向に受け止められている。ピッ
クアップ送りねじ15の他端には、他端側の軸受17と
一体に設けられた当接片19が当接している。この当接
片19はピックアップ支持台12bの本体部分と薄肉部
19aを介して繋がっており、薄肉部19aを中心に揺
動することによって、送りねじ15の他端に対して自由
に離接し得る。さらに、ピックアップ支持台12bには
ストッパ片19bが一体形成され、このストッパ片19
bの先端を当接片19の外面に接近させて、当接片19
の揺動量を制限するようにしている。当接片19とスト
ッパ片19bとの間には板ばね20が配置されている。
この板ばね20は、U字状に屈曲された屈曲部21と、
この屈曲部21の一片21aより延長された延長部22
とを有している。そして、屈曲部21の他片21bを基
板7の下面に接触させ、且つ延長部22先端を当接片1
9とストッパ片19bとの間の隙間から外方へ突出させ
た状態で、屈曲部21の両片21a,21bに貫通させ
た取付ねじ23により、基板7の下面に取り付けられて
いる。従って、取付ねじ23の締付力を加減することに
より、板ばね20の延長部22と当接片19との間の隙
間を調節し得るが、このような調節がし易いように、前
記ストッパ片19bには工具挿通孔19cがあけてあ
る。
The pickup feed screw 15 has a bearing 1 in which both ends thereof are integrally formed with the pickup support bases 12a and 12b.
It is supported by 6 and 17 so as to be rotatable and movable in the axial direction. One end (right end in FIG. 3) of the pickup feed screw 15 is axially received by a rigid stopper 18 that is integrally provided with a bearing 16 on one end side. The other end of the pickup feed screw 15 is in contact with a contact piece 19 integrally provided with the bearing 17 on the other end side. The contact piece 19 is connected to the main body of the pickup support base 12b via the thin portion 19a, and can swing freely around the thin portion 19a to freely come into contact with or separate from the other end of the feed screw 15. . Further, a stopper piece 19b is integrally formed on the pickup support base 12b.
The tip of b is brought close to the outer surface of the contact piece 19 and
The amount of rocking is limited. A leaf spring 20 is arranged between the contact piece 19 and the stopper piece 19b.
The leaf spring 20 includes a bent portion 21 bent in a U shape,
Extension part 22 extended from one piece 21a of this bent part 21
And have. Then, the other piece 21b of the bent portion 21 is brought into contact with the lower surface of the substrate 7, and the tip of the extension portion 22 is brought into contact with the contact piece 1.
9 is attached to the lower surface of the substrate 7 by a mounting screw 23 that penetrates both the pieces 21a and 21b of the bent portion 21 while protruding outward from the gap between the stopper piece 19b and the stopper piece 19b. Therefore, the gap between the extension 22 of the leaf spring 20 and the contact piece 19 can be adjusted by adjusting the tightening force of the mounting screw 23. However, in order to facilitate such adjustment, the stopper A tool insertion hole 19c is formed in the piece 19b.

なお、第2図及び第3図中24はピックアップ送りねじ
15の他端側に固定されたプーリで、このプーリ24
と、送り用モータ25の回転軸25aに固定されたモー
タプーリ26との間に無端ベルト27が捲装されてい
る。そして、送り用モータ25によりピックアップ送り
ねじ15が一定量ずつ回転駆動されてピックアップ6の
ピッチ送りがなされる。また、第1図中28は多数のデ
ィスク型記録媒体(図示省略)を収納する収納部、29
は収納部28から所望のディスク型記録媒体を引き出し
てターンテーブル4上へ移行させる引出機構である。
Reference numeral 24 in FIGS. 2 and 3 denotes a pulley fixed to the other end of the pickup feed screw 15.
An endless belt 27 is wound between the motor pulley 26 fixed to the rotary shaft 25a of the feed motor 25 and the motor pulley 26. Then, the pickup feed screw 15 is rotationally driven by a constant amount by the feed motor 25, and the pitch feed of the pickup 6 is performed. Further, 28 in FIG. 1 is a storage portion for storing a large number of disc type recording media (not shown), and 29.
Is a pull-out mechanism for pulling out a desired disc-type recording medium from the accommodating portion 28 and moving it onto the turntable 4.

しかして、ディスク型記録媒体再生装置1の作動は従来
と同様に、収納部28から引出機構29により引き出さ
れたディスク型記録媒体が、ターンテーブル4上に載置
セットされると、クランパ5が下降して、このクランプ
5とターンテーブル4とでディスク型記録媒体が挟持さ
れた状態でモータ3により回転駆動される。これと同時
に、送り用モータ25によりピックアップ送りねじ15
が回転駆動されて、ピックアップ6がガイド杆12,1
3の軸線に沿って一定量ずつピッチ送りされる。
The operation of the disc-type recording medium reproducing apparatus 1 is the same as in the conventional case. When the disc-type recording medium pulled out from the accommodating section 28 by the pull-out mechanism 29 is set on the turntable 4, the clamper 5 is set. The disk 3 descends and is rotationally driven by the motor 3 with the disk type recording medium being held between the clamp 5 and the turntable 4. At the same time, the pickup feed screw 15 is moved by the feed motor 25.
Is driven to rotate, and the pickup 6 moves the guide rods 12, 1
A fixed amount of pitch feed is performed along the axis of 3.

以上の構成では、取付ねじ8の締付力を加減することに
より、板ばね20と当接片19との間の隙間を変化させ
ることができ、また、板ばね20の当接片19に対する
押付け力を加減することもできるので、この押付け力が
殆んど“0”で、しかも、板ばね20と当接片19との
間の隙間も殆んど“0”となるように調節しておくこと
は可能である。従って、このような調節を予め行なって
おけば、ピックアップ送りねじ15の回転負荷が減少す
ると共に、ピックアップ送りねじ15がスラスト方向へ
移動することもない。
In the above configuration, by adjusting the tightening force of the mounting screw 8, the gap between the leaf spring 20 and the contact piece 19 can be changed, and the leaf spring 20 is pressed against the contact piece 19. Since the force can be adjusted, the pressing force is adjusted to almost "0", and the gap between the leaf spring 20 and the contact piece 19 is adjusted to "0". It is possible to set it. Therefore, if such adjustment is performed in advance, the rotational load of the pickup feed screw 15 is reduced and the pickup feed screw 15 does not move in the thrust direction.

第4図は本考案の他の実施例を示すピックアップ送りね
じ取付機構の断面図である。なお、この第4図の実施例
において、上述した第1図乃至第3図の実施例と同一部
分については、図面に同一符号を付してある。この第4
図の実施例は、基板7に直角下方に向けて取付片7aを
切り起こし形成し、この取付片7aの外側面に板ばね2
0の屈曲部21の他片21bを接触させ、両片21a,
21bに貫通させた取付ねじ23により、板ばね20を
基板7の取付片7aの外側面に取り付けたものである。
そして、板ばね20の屈曲部21の一片21aの延長部
22は、基板7に取付片7aの切り起こし形成に伴い穿
設された孔7bを介してその上面側に延出させ、当接片
19とストッパ片19bとの間の隙間を通して外方へ突
出させている。
FIG. 4 is a sectional view of a pickup feed screw mounting mechanism showing another embodiment of the present invention. In the embodiment of FIG. 4, the same parts as those of the embodiment of FIGS. 1 to 3 described above are designated by the same reference numerals. This 4th
In the illustrated embodiment, the mounting piece 7a is formed by cutting and raising the substrate 7 downward at right angles, and the leaf spring 2 is formed on the outer surface of the mounting piece 7a.
The other piece 21b of the bent portion 21 of 0 is brought into contact with both pieces 21a,
The leaf spring 20 is attached to the outer side surface of the attachment piece 7a of the substrate 7 by the attachment screw 23 penetrating through 21b.
Then, the extension portion 22 of the piece 21a of the bent portion 21 of the leaf spring 20 is extended to the upper surface side of the board 7 through the hole 7b formed along with the cut-and-raised formation of the mounting piece 7a, and the abutting piece. It is made to project outward through the gap between 19 and the stopper piece 19b.

なお、この第4図の実施例における他の構成及び作用は
第1図乃至第3図の実施例と同様である。
The other construction and operation of the embodiment of FIG. 4 are the same as those of the embodiment of FIGS.

(考案の効果) 上述した如く本考案のディスク型記録媒体再生装置のピ
ックアップ送りねじ取付機構は、ピックアップ送りねじ
の一端を剛性ストッパで受け、ピックアップ送りねじの
他端には当接片を当接させて、この当接片の外側に板ば
ねを対向配置し、この板ばねを基板に対して取付ねじに
より取り付け、且つ、その取付ねじで前記板ばねと当接
片との間の隙間調節を行なうようにしたものである。
(Advantages of the Invention) As described above, the pickup feed screw mounting mechanism of the disc-type recording medium reproducing apparatus of the present invention receives one end of the pickup feed screw with the rigid stopper, and abuts the abutment piece on the other end of the pickup feed screw. Then, the leaf springs are arranged opposite to each other on the outer side of the abutment piece, the leaf spring is attached to the board with a mounting screw, and the mounting screw adjusts the gap between the leaf spring and the abutting piece. It was something that I was supposed to do.

従って、取付ねじの締付力を加減して板ばねと当接片と
の間の隙間を目標値“0”とするべく調節することによ
って、ピックアップ送りねじの回転負荷の減少を図り、
しかも、ピックアップ送りねじのスラスト方向への移動
を確実に防止して、ピックアップのピッチ送り精度を高
めることができる等の効果を奏する。
Therefore, the rotational load of the pickup feed screw is reduced by adjusting the tightening force of the mounting screw to adjust the gap between the leaf spring and the contact piece to the target value "0".
In addition, it is possible to reliably prevent the pickup feed screw from moving in the thrust direction and to improve the pitch feed accuracy of the pickup.

【図面の簡単な説明】[Brief description of drawings]

第1図乃至第3図は本考案の一実施例を示し、第1図は
本考案を適用したディスク型記録媒体再生装置の一部を
切欠した斜視図、第2図は本考案のピックアップ送りね
じ取付機構の下面図、第3図は第2図のIII−III線に沿
う断面図、第4図は本考案の他の実施例を示す第3図と
同状図、第5図は従来のピックアップ送りねじ取付機構
の断面図である。 1…ディスク型記録媒体再生装置、6…ピックアップ、
7…基板、15…ピックアップ送りねじ、18…剛性ス
トッパ、19…当接片、20…板ばね、21…屈曲部、
21a…一片、21b…他片、22…延長部、23…取
付ねじ、25…送り用モータ。
1 to 3 show an embodiment of the present invention, FIG. 1 is a perspective view of a disk type recording medium reproducing apparatus to which the present invention is applied, with a part cut away, and FIG. 2 is a pickup feed of the present invention. FIG. 3 is a bottom view of the screw mounting mechanism, FIG. 3 is a sectional view taken along the line III-III of FIG. 2, FIG. 4 is the same view as FIG. 3 showing another embodiment of the present invention, and FIG. FIG. 3 is a sectional view of the pickup feed screw mounting mechanism of FIG. 1 ... Disk type recording medium reproducing device, 6 ... Pickup,
7 ... Board, 15 ... Pickup feed screw, 18 ... Rigidity stopper, 19 ... Abutment piece, 20 ... Leaf spring, 21 ... Bent portion,
21a ... One piece, 21b ... Other piece, 22 ... Extension part, 23 ... Mounting screw, 25 ... Feed motor.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】モータ(25)により回転駆動されてピックア
ップ(6)を軸方向に送り動作するピックアップ送りねじ
(15)の両端をそれぞれ回転自在に支持して基板(7)上に
取付ける一対の軸受(16,17)と、 前記ピックアップ送りねじの一端を支持する一方の軸受
に設けられて前記ピックアップ送りねじを軸方向に受け
止める剛性ストッパ(18)と、 前記ピックアップ送りねじの他端を支持する他方の軸受
に、前記ピックアップ送りねじの他端に接離可能に設け
られた当接片(19)と、 この当接片を介して前記ピックアップ送りねじの他端に
対向配置されて前記ピックアップ送りねじの軸方向の移
動を規制する板ばね(21)とを具備したディスク型記録媒
体再生装置のピックアップ送りねじ取付機構において、 前記板ばねを基板に取付ける取付けねじ(23)を、前記板
ばねと前記当接片との隙間を調節可能に設けたことを特
徴とするディスク型記録媒体再生装置のピックアップ送
りねじ取付機構。
1. A pickup feed screw which is rotationally driven by a motor (25) to axially feed a pickup (6).
A pair of bearings (16, 17) that rotatably support both ends of (15) and are mounted on the substrate (7), and one pickup bearing that supports one end of the pickup feed screw. A rigid stopper (18) for axially receiving the other end of the pickup feed screw, the other bearing supporting the other end of the pickup feed screw, and an abutment piece (19) provided so as to be separable from the other end of the pickup feed screw. A pickup feed screw of a disc type recording medium reproducing apparatus, which is provided with a leaf spring (21) which is arranged opposite to the other end of the pickup feed screw via the abutment piece and regulates the axial movement of the pickup feed screw. In the mounting mechanism, a mounting screw (23) for mounting the leaf spring on the substrate is provided so that a gap between the leaf spring and the abutment piece can be adjusted, and a pickup feeding device for a disc-type recording medium reproducing apparatus. Reel screw mounting mechanism.
【請求項2】前記板ばねは、U字状に屈曲された屈曲部
を有し、該屈曲部の一片の延長部を前記ピックアップ送
りねじの他端に対向させ、該屈曲部の一片に係止し、他
片を貫通する前記取付けねじにて基板に取付けられるも
のであって、基板に対する取付けねじの螺合量の調整に
より前記延長部と前記当接片との隙間が調節されること
を特徴とする請求項1に記載のディスク型記録媒体再生
装置のピックアップ送りねじ取付機構。
2. The leaf spring has a bent portion bent in a U shape, and an extension of one piece of the bent portion is opposed to the other end of the pickup feed screw to engage with the one piece of the bent portion. It is mounted on the board with the mounting screw that passes through the other piece, and the gap between the extension and the contact piece is adjusted by adjusting the screwing amount of the mounting screw with the board. The pick-up feed screw mounting mechanism of the disk type recording medium reproducing apparatus according to claim 1, which is characterized in that.
JP3421888U 1988-03-15 1988-03-15 Pickup lead screw mounting mechanism for disc type recording medium playback device Expired - Lifetime JPH0621086Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3421888U JPH0621086Y2 (en) 1988-03-15 1988-03-15 Pickup lead screw mounting mechanism for disc type recording medium playback device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3421888U JPH0621086Y2 (en) 1988-03-15 1988-03-15 Pickup lead screw mounting mechanism for disc type recording medium playback device

Publications (2)

Publication Number Publication Date
JPH01138262U JPH01138262U (en) 1989-09-21
JPH0621086Y2 true JPH0621086Y2 (en) 1994-06-01

Family

ID=31260939

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3421888U Expired - Lifetime JPH0621086Y2 (en) 1988-03-15 1988-03-15 Pickup lead screw mounting mechanism for disc type recording medium playback device

Country Status (1)

Country Link
JP (1) JPH0621086Y2 (en)

Also Published As

Publication number Publication date
JPH01138262U (en) 1989-09-21

Similar Documents

Publication Publication Date Title
WO2002059504A1 (en) Feed screw driver and information recorder/reproducer
US5761182A (en) Optical recording and reproducing apparatus
US6192023B1 (en) Optical pick-up feeding device having a regulating member to adjust an orientation of a lead screw thereof
JPH0731417Y2 (en) Pickup feed mechanism for disc type recording medium reproducing device
US20020181386A1 (en) Disk reproducing device
JPH0621086Y2 (en) Pickup lead screw mounting mechanism for disc type recording medium playback device
JPS60191479A (en) Feeding mechanism for optical head
KR100189914B1 (en) Pickup tilt adjusting device for disc player
JPS61150162A (en) Support mechanism of optical disc driver
JPH0734541Y2 (en) Pickup feed mechanism of disk type recording medium reproducing device
JPH0329771Y2 (en)
JPH11306548A (en) Disk reproducing device
KR910005213Y1 (en) Pickup fixed device of disk type recording
JP3924486B2 (en) Skew adjustment device for disk drive device and disk drive device
JPH11224438A (en) Optical pickup device
JP2001222823A (en) Disk drive device and skew regulating member
JPS61104335A (en) Optical axis adjusting device of optical pickup
KR100231645B1 (en) Pick-up unit of an optical disk player
JP2006286127A (en) Optical disk drive unit
US5218598A (en) Disc driving apparatus with magnetic means for preventing axial movement
JPS6343631Y2 (en)
JP2588609B2 (en) Guide shaft support device for disc player
JPS6371934A (en) Optical pickup driving device
JPH0127174Y2 (en)
JP2926868B2 (en) Rotating head device