JPH01224932A - Optical pickup device - Google Patents

Optical pickup device

Info

Publication number
JPH01224932A
JPH01224932A JP5114288A JP5114288A JPH01224932A JP H01224932 A JPH01224932 A JP H01224932A JP 5114288 A JP5114288 A JP 5114288A JP 5114288 A JP5114288 A JP 5114288A JP H01224932 A JPH01224932 A JP H01224932A
Authority
JP
Japan
Prior art keywords
damper
optical pickup
pickup device
fixing pin
objective lens
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.)
Granted
Application number
JP5114288A
Other languages
Japanese (ja)
Other versions
JPH0758552B2 (en
Inventor
Takashi Hoshino
隆 星野
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP63051142A priority Critical patent/JPH0758552B2/en
Publication of JPH01224932A publication Critical patent/JPH01224932A/en
Publication of JPH0758552B2 publication Critical patent/JPH0758552B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Optical Recording Or Reproduction (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 [産業上の利用分野] この発明は光デイスク装置または光学式記録再生装置等
に使用する光ピックアップ装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an optical pickup device used in an optical disk device, an optical recording/reproducing device, or the like.

[従来の技術] 第3図は従来の光ピックアップ装置のアクチュエータ部
の一部を切欠いて示す斜視図であり、第3図において、
(1)はベース、(2)はベース(1)に立てた支軸、
(3)は対物レンズ、(4)は偏心位置に対物レンズ(
3)を保持し支軸(2)に回動自在、軸線方向移動自在
に支持された対物レンズホルダ、(5)は支軸(2)を
挾んで対物レンズホルダ(4)の両側に設けられたトラ
ック制御用のコイル、つまり、対物レンズホルダに回動
力を付与するコイル、(6)はコイル(5)に対向して
ベース(1)上に設けられた永久磁石、(7)は対物レ
ンズホルダ(4)を中立位置に付勢するダンパー、(8
)はダンパー(7)を固定するようにベース(1)上に
立てた固定ピン、(9)はベース(1)上に配設された
前記各部材を覆うアクチュエータカバーである。
[Prior Art] FIG. 3 is a partially cutaway perspective view of an actuator section of a conventional optical pickup device.
(1) is the base, (2) is the support shaft erected on the base (1),
(3) is the objective lens, and (4) is the objective lens (
The objective lens holder (3) is rotatably and axially movably supported on the support shaft (2), and (5) is provided on both sides of the objective lens holder (4) with the support shaft (2) in between. (6) is a permanent magnet provided on the base (1) facing the coil (5), (7) is the objective lens. a damper (8) that biases the holder (4) to the neutral position;
) is a fixing pin erected on the base (1) to fix the damper (7), and (9) is an actuator cover that covers each of the above-mentioned members arranged on the base (1).

上記ダンパー(7)はその両端部が対物レンズホルダ(
3)に固定され、中間部が固定ピン(8)に固定されて
いる。第4図、第5図は上記固定ピン(8)に対するダ
ンパー(7)の固定構成を示すもので、第4図は固定ピ
ン(8)に形成された細径首部(10)にダンパー(7
)の中間部に形成したコ字型四部(7a)を引掛は固定
している。
The damper (7) has both ends attached to the objective lens holder (
3), and the intermediate portion is fixed to a fixing pin (8). Figures 4 and 5 show the structure of fixing the damper (7) to the fixing pin (8).
) The hook fixes the U-shaped four parts (7a) formed in the middle part.

また、第5図はダンパー(7)の中間部に設けた支持体
(11)の係合穴(12)を、固定ピン(8)の先端に
形成された細径部(13)に嵌合固定している。
In addition, Fig. 5 shows how the engagement hole (12) of the support body (11) provided in the middle part of the damper (7) is fitted into the narrow diameter part (13) formed at the tip of the fixing pin (8). Fixed.

次に動作について説明する。対物レンズ(3)を保持し
た対物レンズホルダ(4)は、焦点制御コイル(図示せ
ず)およびトラック制御コイル(5)の通電によって軸
線方向(集光方向)への駆動および回動(トラック方向
)駆動が行われ、各コイルに対する通電が終了すると、
ダンパー(7)の復元力によって自動的に中点位114
に復元する。
Next, the operation will be explained. The objective lens holder (4) holding the objective lens (3) is driven and rotated (in the track direction) in the axial direction (focusing direction) by energizing a focus control coil (not shown) and a track control coil (5). ) When the drive is performed and the energization to each coil is finished,
The restoring force of the damper (7) automatically moves the center point to 114.
Restore to.

[発明が解決しようとする課2fU] 従来の光ピックアップ装置は以−りのように構成されて
いるので、固定ピンに対するダンパーの固定構成として
、第4図のような構成では、組立性に問題があり、第5
図のような構成では、組立性は良いが対物レンズホルダ
の軸線方向への駆動によって固定ピンから抜ける心配が
あり、取付後に接イク等の必要かあるなどの課題があっ
た。
[Issue 2fU to be solved by the invention] Since the conventional optical pickup device is configured as described below, the structure shown in FIG. There is a fifth
Although the configuration shown in the figure is easy to assemble, there is a risk that the objective lens holder will come off the fixing pin when driven in the axial direction, and there are problems such as the need for contact after installation.

この発明は」−記のような課題を解決するためになされ
たもので、ダンパーの組立性が良く、取付後におけるダ
ンパーの固定ピンからの抜け発生がない光ピックアップ
装置を得ることを1−1的とする。
This invention was made in order to solve the problems as described in 1-1.It is an object of the present invention to obtain an optical pickup device in which the damper is easy to assemble and the damper does not come off from the fixing pin after installation. target

[課題を解決するための手段] この発明に係る光ピックアップ装置は、固定ピン先端の
細径部に係合穴を1俣合させたダンパーを抜け市め的に
押える押え部をアクチュエータカバーの内側に突設した
ものである。
[Means for Solving the Problems] The optical pickup device according to the present invention has a damper in which one engagement hole is aligned with the narrow diameter portion of the tip of the fixing pin, and a presser portion that presses the damper in a fixed manner is inserted into the inside of the actuator cover. It is a projecting structure.

[作J10 この発明におけるアクチュエータカバーは、その内側に
突設した押え部により、ダンパーを押えて固定ピンから
の抜けを防止するようにしたことにより、ダンパー形状
およびその組付けが簡素化される。
[Production J10] The actuator cover of the present invention has a presser portion protruding from the inside thereof to press the damper and prevent it from coming off from the fixing pin, thereby simplifying the shape of the damper and its assembly.

[実施例] 以下、この発明の一実施例を図について説明する。[Example] An embodiment of the present invention will be described below with reference to the drawings.

第1図において、(14)はダンパー(7)の一端部に
設けた支持体、(15)は支持体(14)に上下貫通し
て設けた係合穴であり、この係合穴(15)を固定ピン
(8)の先端に設けた細径部(13)に嵌合固定するも
ので、前記第3図と同一の他の構成部分には同一符号を
付して説明を省略する。
In FIG. 1, (14) is a support provided at one end of the damper (7), and (15) is an engagement hole provided vertically through the support (14). ) is fitted and fixed to a narrow diameter portion (13) provided at the tip of a fixing pin (8), and other components that are the same as those in FIG.

第2図はアクチュエータカバー(9)を取付けた状態の
一部の断面図を示すもので、第2図において、(16)
はアクチュエータカバー(9)の内側に突設したダンパ
ー(7)の押え部である。
Figure 2 shows a partial cross-sectional view of the actuator cover (9) attached.
is a holding part of the damper (7) that is protruded from the inside of the actuator cover (9).

次に上記実施例におけるダンパー(7)の組付けについ
て説明する。ダンパー(7)は対物レンズホルダ(4)
の側面に取付けられており、この対物レンズホルダ(4
)を支軸(2)に装着する際、ダンパー(7)の一端部
に設けた支持体(14)の係合穴(15)を固定ピン(
8)の細径部(13)に嵌合する。ついで、対物レンズ
等を覆うようにベース(1)にアクチュエータカバー(
9)を取付け、このアクチュエータカバー(9)の押え
部(16)で」二記支持体(14)の上面を抜け1にめ
的に押え込むようにしたものである。
Next, the assembly of the damper (7) in the above embodiment will be explained. The damper (7) is the objective lens holder (4)
This objective lens holder (4
) on the support shaft (2), insert the engagement hole (15) of the support (14) provided at one end of the damper (7) into the fixing pin (
Fits into the narrow diameter portion (13) of 8). Next, attach the actuator cover (
9) is attached, and the presser part (16) of this actuator cover (9) allows the upper surface of the support (14) to be pushed through and pressed into place 1.

[発明の効果] 以上のように、この発明によれば、その一端部に設けた
支持体の係合穴を固定ピンの先端に形成した細径部に嵌
合させ、この支持体をアクチュエータカバーの内側に突
設した押え部で抜け止め的に押圧するように構成したの
で、固定ピンの形状を簡素化でき、この固定ピンに対す
るダンパーの組1γが容易になり、ダンパーの固定ピン
からの抜けを確実に防止できるという効果がある。
[Effects of the Invention] As described above, according to the present invention, the engagement hole of the support provided at one end of the support is fitted into the narrow diameter portion formed at the tip of the fixing pin, and the support is attached to the actuator cover. Since it is configured so that it is pressed to prevent it from coming off with a presser part protruding from the inside, the shape of the fixing pin can be simplified, and the damper can be easily assembled to this fixing pin, thereby preventing the damper from coming off from the fixing pin. This has the effect of reliably preventing this.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明の一実施例による光ピックアップ装置
を示すアクチュエータ部の斜視図、第2図はその実施例
におけるダンパー固定部の断面図、第3図は従来の光ピ
ックアップ装置におけるアクチュエータ部の斜視図、第
4図及び第5図はその従来装置におけるダンパーの固定
ピンへの取付構成を示した斜視図である。 図において、(1)はベース、(2)は支軸、(4)は
対物レンズホルダ、(7)はダンパー、(8)は固定ピ
ン、(9)はアクチュエータカバー、(13)は細径部
、(14)は支tFj体、(15)は係合穴、(16)
は押え部である。 尚、図中、同一符号は同−又は相当部分を示す。 代理人 弁理士 大 岩 増 雄 (他 2名) 9ニアクチユニークかe−15:  /f、金穴γソt
−!−If定郭nfffr面口
FIG. 1 is a perspective view of an actuator section showing an optical pickup device according to an embodiment of the present invention, FIG. 2 is a sectional view of a damper fixing section in the embodiment, and FIG. 3 is a perspective view of an actuator section in a conventional optical pickup device. The perspective view, FIG. 4, and FIG. 5 are perspective views showing the structure of attaching the damper to the fixing pin in the conventional device. In the figure, (1) is the base, (2) is the support shaft, (4) is the objective lens holder, (7) is the damper, (8) is the fixing pin, (9) is the actuator cover, and (13) is the thin diameter. part, (14) is the support tFj body, (15) is the engagement hole, (16)
is the presser foot. In the drawings, the same reference numerals indicate the same or corresponding parts. Agent: Patent Attorney Masuo Oiwa (and 2 others) 9Niakuchi Unique e-15: /f, Kanana γ Sot
-! -If contour nfffr face opening

Claims (1)

【特許請求の範囲】[Claims] ベースに立設した支軸に軸線方向移動自在および回転自
在に支持された対物レンズホルダと、前記ベースに設け
た固定ピンに取付けられ前記対物レンズホルダを中立位
置に復帰支持するダンパーと、前記対物レンズホルダお
よびダンパー等を覆うアクチュエータカバーとを有する
光ピックアップ装置において、前記固定ピン先端の細径
部に係合穴を嵌合させた前記ダンパーを抜け止め的に押
さえる押え部を前記アクチュエータカバーの内側に突設
したことを特徴とする光ピックアップ装置。
an objective lens holder supported axially movably and rotatably on a support shaft provided upright on a base; a damper attached to a fixing pin provided on the base to return and support the objective lens holder to a neutral position; In an optical pickup device having an actuator cover that covers a lens holder, a damper, etc., a presser part that holds the damper, which has an engagement hole fitted into a narrow diameter part at the tip of the fixing pin so as to prevent it from coming off, is placed inside the actuator cover. An optical pickup device, characterized in that the optical pickup device is protruded from the top.
JP63051142A 1988-03-04 1988-03-04 Optical pickup device Expired - Fee Related JPH0758552B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63051142A JPH0758552B2 (en) 1988-03-04 1988-03-04 Optical pickup device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63051142A JPH0758552B2 (en) 1988-03-04 1988-03-04 Optical pickup device

Publications (2)

Publication Number Publication Date
JPH01224932A true JPH01224932A (en) 1989-09-07
JPH0758552B2 JPH0758552B2 (en) 1995-06-21

Family

ID=12878574

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63051142A Expired - Fee Related JPH0758552B2 (en) 1988-03-04 1988-03-04 Optical pickup device

Country Status (1)

Country Link
JP (1) JPH0758552B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61114525U (en) * 1984-12-27 1986-07-19
JPS6242120U (en) * 1985-08-30 1987-03-13

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61114525U (en) * 1984-12-27 1986-07-19
JPS6242120U (en) * 1985-08-30 1987-03-13

Also Published As

Publication number Publication date
JPH0758552B2 (en) 1995-06-21

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