JPH0652560A - Driving device for objective lens - Google Patents

Driving device for objective lens

Info

Publication number
JPH0652560A
JPH0652560A JP23263891A JP23263891A JPH0652560A JP H0652560 A JPH0652560 A JP H0652560A JP 23263891 A JP23263891 A JP 23263891A JP 23263891 A JP23263891 A JP 23263891A JP H0652560 A JPH0652560 A JP H0652560A
Authority
JP
Japan
Prior art keywords
objective lens
plate
spring
driving device
tracking
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.)
Pending
Application number
JP23263891A
Other languages
Japanese (ja)
Inventor
Yukio Adachi
幸夫 足立
Original Assignee
Nec Corp
日本電気株式会社
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 Nec Corp, 日本電気株式会社 filed Critical Nec Corp
Priority to JP23263891A priority Critical patent/JPH0652560A/en
Publication of JPH0652560A publication Critical patent/JPH0652560A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE:To shorten the distance from an objective lens to a fixed section in a spring-supported type objective lens driving device so as to house the device in the window frame of an optical disk cartridge. CONSTITUTION:An objective lens 1 is held at the central part of a three- dimensional mobile body 2 along the direction of tacks and the mobile body 2 is supported at four points by means of four plate springs 3a-3d for focusing which are arranged in parallel with each other. The end sections of the springs 3a-3d on the opposite side to the mobile body 2 are connected to a fixed supporting section 6 by using one plate spring 5 for tracking. The spring 5 is arranged in parallel with the direction of tracks at the central part of a repeating plate 4 and both ends of the spring 5 are connected to the section 6.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は光ディスク装置に用いる対物レンズ駆動装置に関する。 The present invention relates to a objective lens driving device for use in an optical disk apparatus.

【0002】 [0002]

【従来の技術】図2を参照して、従来の対物レンズ駆動装置の構成について説明する。 BACKGROUND OF THE INVENTION With reference to FIG. 2, the configuration of the conventional objective lens driving device.

【0003】図2において、1は光ディスク装置に用いられる光学ヘッドの対物レンズであり、この対物レンズ1は可動体2に固定保持されている。 [0003] In FIG. 2, 1 is the objective lens of the optical head used in an optical disc apparatus, the objective lens 1 is fixed and held to the movable member 2. この可動体2は4 The movable body 2 is 4
枚のフォーカシング用板ばね3a〜3d,中継板4およびトラッキング用板ばね5を介して固定部6にフォーカス方向(図2(b)で言えば上下方向)およびトラック方向(図2(a)で言えば上下方向)に移動自在に支持されている。 Like the focusing plate springs 3 a to 3 d, with (in terms of the FIG. 2 (b) vertical direction) focus direction to the fixed portion 6 via the relay board 4 and the tracking plate spring 5 and the track direction (FIGS. 2 (a) It is movably supported in the vertical direction) speaking.

【0004】即ち、4枚のフォーカシング用板ばね3a [0004] In other words, four of the focusing plate spring 3a
〜3dは、それらの一端が可動体2のフォーカス方向両側部それぞれのトラック方向両端側に、幅方向をフォーカス方向に直交して固定され、他端が互いに平行に中継板4のフォーカス方向両側部に固定される。 ~3d is their end focus direction both side portions each track direction end side of the movable member 2 is fixed orthogonally to the width direction in the focusing direction, the focusing direction both side portions of the other end parallel to the relay plate 4 to each other It is fixed to. さらに、1 In addition, 1
枚のトラッキング用板ばね5はフォーカシング用板ばね3a〜3dの板面に直交するように、その幅方向の一側が中継板4に固定され、他側が固定部6に固定されている。 Sheets of the tracking plate spring 5 so as to be perpendicular to the plate surface of the focusing plate springs 3 a to 3 d, one side in the width direction is fixed to the relay plate 4, the other side is fixed to the fixing portion 6.

【0005】 [0005]

【発明が解決しようとする課題】この従来の対物レンズ駆動装置では、可動体,対物レンズ,中継板等を1枚のトラッキング用板ばねを介して可動体とは反対方向に配置した固定支持部に連結していた。 BRIEF Problem to be Solved] In this conventional objective lens driving device, the movable member, an objective lens, fixed support for the movable body relay plate or the like via a single tracking leaf springs are arranged in the opposite direction It has been linked to. そのため、対物レンズから固定支持部までの距離が長くなり、光ディスク媒体のカートリッジの窓枠に入らないという問題点があった。 Therefore, the distance from the objective lens to the fixed support is long, there is a problem that does not enter the window frame of the cartridge of the optical disk medium.

【0006】 [0006]

【課題を解決するための手段】本発明の対物レンズ駆動装置は、対物レンズをトラック方向に沿って中央部に保持する可動体と、この可動体をそれぞれの端部で4点支持する互いに平行な4枚のフォーカシング用板ばねと、 An objective lens driving device of the present invention, in order to solve the problems] includes a movable body that holds the central portion along the objective lens in the track direction, mutually parallel supporting four points the movable member at each end and four of the focusing leaf springs such,
これら4枚のフォーカシング用板ばねの前記可動体とは反対側に位置する端部を中継板を介して固定支持部に連結する1枚のトラッキング用板ばねとを備えた対物レンズ駆動装置において、前記中継板を保持する前記1枚のトラッキング用板ばねを前記トラック方向と平行に、かつ、前記中継板の中央部に配置し、前記1枚のトラッキング用板ばねの両端をそれぞれ固定支持部に連結して構成される。 In the objective lens driving device including a single tracking leaf springs for connecting the fixed support through the relay plate end located on the opposite side to the movable member of these four focusing plate springs, said one of the tracking leaf spring for holding the relay plate parallel to the track direction, and arranged in a central portion of said relay board, both ends of the one of the tracking plate springs each fixed support consolidated and configured.

【0007】 [0007]

【実施例】次に本発明について図面を参照して説明する。 EXAMPLES The present invention will be described below with reference to the drawings.

【0008】図1(a),(b)および(c)は本発明の一実施例の平面図,正面図および側面図である。 [0008] FIG. 1 (a), and (b) (c) is a plan view, a front view and a side view of an embodiment of the present invention.

【0009】図1に示す実施例における対物レンズ1, [0009] objective lens 1 in the embodiment shown in FIG. 1,
可動体2,フォーカシング用板ばね3a〜3d,中継板4の配置は図2の従来例におけると同じである。 The movable body 2, a focusing plate springs 3 a to 3 d, the arrangement of the relay board 4 is the same as in the conventional example of FIG. 図2の従来例との相違はトラッキング板ばね5の配置とその支持方法である。 The difference from the conventional example of FIG. 2 is a layout and its method of supporting the tracking plate spring 5. 以下にこれら相違点を詳細に説明する。 To explain these differences in detail.

【0010】図1(a)を参照して、トラッキング用板ばね5をトラック方向に平行に配置する。 [0010] With reference to FIG. 1 (a), arranged parallel to the tracking plate spring 5 in the track direction. 図1(c)を参照して説明すると、トラッキング用板ばね5の中央部を中継板4との連結部に使用し、トラッキング用板ばね5の両端をそれぞれ固定部6で支持する。 Figure 1 will be described with reference to (c), using the central portion of the tracking plate spring 5 to the connecting portion of the relay plate 4, which support both ends of the tracking plate spring 5 at the fixed part 6. 従って、図1 Thus, Figure 1
(b)に示す様に、固定部6がトラッキング用板ばね5 As shown in (b), the fixed portion 6 is the tracking plate spring 5
に対して可動体2と同方向に配置されるので、トラック方向と垂直方向の長さは可動体2から中継板4までの距離となり、小型化が計れる。 A movable member 2 because it is arranged in the same direction with respect to the length in the track direction and the vertical direction becomes the distance from the movable body 2 to the relay plate 4, miniaturization can be achieved.

【0011】 [0011]

【発明の効果】以上説明したように本発明は、トラッキング用板ばねの配置を従来とは直交する方向に変更し、 The present invention described above, according to the present invention, change in the direction perpendicular to the conventional arrangement of the tracking plate spring,
かつ、固定部をトラッキング用板ばねに対して可動体と同方向に配置したことで、対物レンズから固定部までの距離を短くしたので、トラック方向と垂直方向の小型化が計れ、光ディスク媒体のカートリッジの窓枠に入れることができるという効果を有する。 And, the fixing portion by disposing the movable member in the same direction relative to the tracking plate spring, since the short distance from the objective lens to the fixed portion, the miniaturization of the track direction and the vertical direction Hakare, the optical disk medium an effect that can be placed in the window frame of the cartridge.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】分図(a),(b)および(c)は本発明の一実施例の平面図,正面図および側面図である。 [1] partial view (a), (b) and (c) is a plan view, a front view and a side view of an embodiment of the present invention.

【図2】分図(a)および(b)は従来の対物レンズ駆動装置の平面図および正面図である。 [2] fraction view (a) and (b) is a plan view and a front view of a conventional objective lens driving device.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 対物レンズ 2 可動体 3a〜3d フォーカシング用板ばね 4 中継板 5 トラッキング用板ばね 6 固定部 1 the objective lens 2 movable body 3a~3d focusing plate spring 4 relay plate 5 tracking plate spring 6 fixed part

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 対物レンズをトラック方向に沿って中央部に保持する可動体と、この可動体をそれぞれの端部で4点支持する互いに平行な4枚のフォーカシング用板ばねと、これら4枚のフォーカシング用板ばねの前記可動体とは反対側に位置する端部を中継板を介して固定支持部に連結する1枚のトラッキング用板ばねとを備えた対物レンズ駆動装置において、前記中継板を保持する前記1枚のトラッキング用板ばねを前記トラック方向と平行に、かつ、前記中継板の中央部に配置し、前記1枚のトラッキング用板ばねの両端をそれぞれ固定支持部に連結したことを特徴とする対物レンズ駆動装置。 And 1. A movable body that holds the central portion along the objective lens in the track direction, and four focusing plate springs parallel to each other to the movable body supporting four points at each end, these four in the objective lens driving device including a single tracking leaf springs for connecting the fixed support through the relay plate end located on the opposite side to the movable member of the focusing plate spring, the relay plate parallel to the one of the tracking plate spring track direction for holding that, and, arranged in the central portion of the relay plate and connecting both ends of the one of the tracking plate springs each fixed support an objective lens driving device according to claim.
JP23263891A 1991-09-12 1991-09-12 Driving device for objective lens Pending JPH0652560A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23263891A JPH0652560A (en) 1991-09-12 1991-09-12 Driving device for objective lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23263891A JPH0652560A (en) 1991-09-12 1991-09-12 Driving device for objective lens

Publications (1)

Publication Number Publication Date
JPH0652560A true JPH0652560A (en) 1994-02-25

Family

ID=16942440

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23263891A Pending JPH0652560A (en) 1991-09-12 1991-09-12 Driving device for objective lens

Country Status (1)

Country Link
JP (1) JPH0652560A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9381756B2 (en) 2009-03-31 2016-07-05 Brother Kogyo Kabushiki Kaisha Tape cassette
US9409425B2 (en) 2009-03-31 2016-08-09 Brother Kogyo Kabushiki Kaisha Tape cassette
US9427988B2 (en) 2009-03-31 2016-08-30 Brother Kogyo Kabushiki Kaisha Tape cassette
US9498998B2 (en) 2008-12-25 2016-11-22 Brother Kogyo Kabushiki Kaisha Tape cassette
US9533522B2 (en) 2008-12-25 2017-01-03 Brother Kogyo Kabushiki Kaisha Tape cassette
US9539837B2 (en) 2009-12-16 2017-01-10 Brother Kogyo Kabushiki Kaisha Tape cassette
US9566808B2 (en) 2009-03-31 2017-02-14 Brother Kogyo Kabushiki Kaisha Tape cassette
US9573401B2 (en) 2009-06-30 2017-02-21 Brother Kogyo Kabushiki Kaisha Tape cassette
US10265982B2 (en) 2009-12-28 2019-04-23 Brother Kogyo Kabushiki Kaisha Tape cassette

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9566812B2 (en) 2008-12-25 2017-02-14 Brother Kogyo Kabushiki Kaisha Tape cassette
US9751349B2 (en) 2008-12-25 2017-09-05 Brother Kogyo Kabushiki Kaisha Tape cassette
US9682584B2 (en) 2008-12-25 2017-06-20 Brother Kogyo Kabushiki Kaisha Tape cassette
US9656496B2 (en) 2008-12-25 2017-05-23 Brother Kogyo Kabushiki Kaisha Tape cassette
US9498998B2 (en) 2008-12-25 2016-11-22 Brother Kogyo Kabushiki Kaisha Tape cassette
US9498997B2 (en) 2008-12-25 2016-11-22 Brother Kogyo Kabushiki Kaisha Tape cassette
US9656497B2 (en) 2008-12-25 2017-05-23 Brother Kogyo Kabushiki Kaisha Tape cassette
US9511609B2 (en) 2008-12-25 2016-12-06 Brother Kogyo Kabushiki Kaisha Tape cassette
US9511611B2 (en) 2008-12-25 2016-12-06 Brother Kogyo Kabushiki Kaisha Tape cassette
US9511610B2 (en) 2008-12-25 2016-12-06 Brother Kogyo Kabushiki Kaisha Tape cassette
US9522556B2 (en) 2008-12-25 2016-12-20 Brother Kogyo Kabushiki Kaisha Tape cassette
US9533522B2 (en) 2008-12-25 2017-01-03 Brother Kogyo Kabushiki Kaisha Tape cassette
US9649861B2 (en) 2008-12-25 2017-05-16 Brother Kogyo Kabushiki Kaisha Tape cassette
US9539838B2 (en) 2008-12-25 2017-01-10 Brother Kogyo Kabushiki Kaisha Tape Cassette
US9855779B2 (en) 2008-12-25 2018-01-02 Brother Kogyo Kabushiki Kaisha Tape cassette
US10189284B2 (en) 2008-12-25 2019-01-29 Brother Kogyo Kabushiki Kaisha Tape cassette
US9566808B2 (en) 2009-03-31 2017-02-14 Brother Kogyo Kabushiki Kaisha Tape cassette
US9381756B2 (en) 2009-03-31 2016-07-05 Brother Kogyo Kabushiki Kaisha Tape cassette
US9592692B2 (en) 2009-03-31 2017-03-14 Brother Kogyo Kabushiki Kaisha Tape cassette
US9616690B2 (en) 2009-03-31 2017-04-11 Brother Kogyo Kabushiki Kaisha Tape cassette
US10226949B2 (en) 2009-03-31 2019-03-12 Brother Kogyo Kabushiki Kaisha Tape cassette
US9656488B2 (en) 2009-03-31 2017-05-23 Brother Kogyo Kabushiki Kaisha Tape cassette
US9427988B2 (en) 2009-03-31 2016-08-30 Brother Kogyo Kabushiki Kaisha Tape cassette
US10201988B2 (en) 2009-03-31 2019-02-12 Brother Kogyo Kabushiki Kaisha Tape cassette
US9409425B2 (en) 2009-03-31 2016-08-09 Brother Kogyo Kabushiki Kaisha Tape cassette
US9403389B2 (en) 2009-03-31 2016-08-02 Brother Kogyo Kabushiki Kaisha Tape cassette
US9498988B2 (en) 2009-03-31 2016-11-22 Brother Kogyo Kabushiki Kaisha Tape cassette
US9573401B2 (en) 2009-06-30 2017-02-21 Brother Kogyo Kabushiki Kaisha Tape cassette
US9802432B2 (en) 2009-06-30 2017-10-31 Brother Kogyo Kabushiki Kaisha Tape cassette
US9676217B2 (en) 2009-06-30 2017-06-13 Brother Kogyo Kabushiki Kaisha Tape cassette
US9539837B2 (en) 2009-12-16 2017-01-10 Brother Kogyo Kabushiki Kaisha Tape cassette
US10265982B2 (en) 2009-12-28 2019-04-23 Brother Kogyo Kabushiki Kaisha Tape cassette

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