KR20000038226A - Device for transferring pickup of optical disc player - Google Patents

Device for transferring pickup of optical disc player Download PDF

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Publication number
KR20000038226A
KR20000038226A KR1019980053133A KR19980053133A KR20000038226A KR 20000038226 A KR20000038226 A KR 20000038226A KR 1019980053133 A KR1019980053133 A KR 1019980053133A KR 19980053133 A KR19980053133 A KR 19980053133A KR 20000038226 A KR20000038226 A KR 20000038226A
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KR
South Korea
Prior art keywords
pickup
wire
pulley
motor
driven pulley
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KR1019980053133A
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Korean (ko)
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KR100531778B1 (en
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단병주
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구자홍
엘지전자 주식회사
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Priority to KR1019980053133A priority Critical patent/KR100531778B1/en
Publication of KR20000038226A publication Critical patent/KR20000038226A/en
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Publication of KR100531778B1 publication Critical patent/KR100531778B1/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs

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  • Moving Of Heads (AREA)

Abstract

PURPOSE: A transferring device of pickup in an optical disc player is provided to reduce a cost and to improve the productivity by having a simple structure and a little component. CONSTITUTION: A driving force of the motor(10) rotates a motive pulley(20) by transferring to the motive pulley(20) installed in a rotating shaft through the rotating shaft. The rotating force of the motive pulley(20) rotates a slave pulley(30) with an electro-motion of wire(40). A contact protrusion(60) contacted in the wire(40) with a regular tension is moved via a proceeding direction of the wire(10) by the rubbing force with the wire(40) and a pickup(50) is transferred toward one direction by the movement. When the motor is rotated in an opposite direction, the motive pulley(20), the slave pulley(30) and the wire(40) are rotated in the opposite direction and the contact protrusion(60) contacted in the wire(40) is moved in the opposite direction according to the proceeding direction of the wire(40). Thereby the pick-up(50) is transferred to the opposite direction. And the pick-up(50) is reciprocated in a radial direction of a disc by guiding with both guides(70)(70A).

Description

광 디스크 플레이어의 픽업 이송장치Pickup transfer unit of optical disc player

본 발명은 광 디스크 플레이어의 픽업 이송장치에 관한 것이다.The present invention relates to a pickup transport apparatus of an optical disc player.

일반적으로 광 디스크 드라이브는 디스크가 안착되는 턴테이블과, 상기 턴테이블에 안착된 디스크를 압착하여 고정하는 클램프와; 상기 클램프에 의해서 턴테이블에 고정된 디스크를 회전시키는 스핀들 모터와; 상기 스핀들 모터의 구동에 의해서 회전되는 광 디스크에 레이저광을 입사시킨 후 디스크에서 되돌아온 광을 검출하여 디스크의 정보를 읽거나 기록하는 픽업과, 상기 픽업을 디스크의 레디얼(Radial)방향, 즉 반경방향으로 이동시키는 광학계 송출기구, 즉 픽업 이송장치로 구성된다. 이와같은 광 디스크 플레이어는 먼저, 턴테이블에 디스크를 안착시키게 되고, 상기 턴테이블에 안착된 디스크는 클램프의 압착으로 고정되며, 상기 클램프에 의해 턴테이블에 고정된 디스크는 스핀들 모터의 구동에 의해서 회전되어 광학계 송출기구에 의한 광 픽업의 이동 및 광 검출로 디스크에 기록된 정보를 읽거나 기록하도록 되어 있다.In general, an optical disk drive includes a turntable on which a disk is seated, and a clamp for pressing and fixing the disk seated on the turntable; A spindle motor for rotating the disk fixed to the turntable by the clamp; A pickup that reads or writes information on the disk by detecting the light returned from the disk after injecting a laser beam into the optical disk rotated by the drive of the spindle motor, and the pickup is in a radial direction, that is, a radial direction of the disk. It consists of an optical system sending mechanism, that is, a pickup transfer device for moving to. Such an optical disk player first seats a disk on a turntable, and the disk seated on the turntable is fixed by crimping of a clamp, and the disk fixed to the turntable by the clamp is rotated by the drive of a spindle motor to send optical systems. The information recorded on the disc is read or recorded by the movement of the optical pickup and the optical detection by the mechanism.

한편, 종래의 광 디스크 플레이어의 픽업 이송장치는 도 1에 도시된 바와 같이 구동력을 발생하는 모터(1)와, 상기 모터(1)의 구동력으로 회전하는 리드스크류(2)와, 상기 리드스크류(2) 측으로 모터(1)의 구동력을 전달하는 수단으로 구성되고, 리드스크류(2) 상에 픽업(3)과 연결된 예압판(4)이 밀착되어 있다. 또한 상기 모터(1)의 구동력을 리드스크류(2) 측으로 전달하기 위한 수단으로서, 여러 조의 기어를 사용한 기어열(5)이 구비되어 있다. 상기 기어열(5)은 모터(1)의 회전축 상에 원동기어(5A)가 설치되어 있고, 리드스크류(2) 상에는 종동기어(5D)가 설치되어 있으며, 상기 원동기어(5A)와 종동기어(5D) 사이에는 아이들기어(5B)(5C)가 상호 치합되어 있다. 그리고 픽업(3)의 양측에는 상기 픽업(3)의 직선왕복운동을 안내하기 위해 한 쌍의 가이드(6)(6A)가 설치되어 있다.Meanwhile, as shown in FIG. 1, a pickup transport apparatus of a conventional optical disc player includes a motor 1 generating a driving force, a lead screw 2 rotating with a driving force of the motor 1, and the lead screw ( It is comprised by the means which transmits the driving force of the motor 1 to 2) side, The preload plate 4 connected with the pickup 3 on the lead screw 2 is in close contact. Moreover, as a means for transmitting the driving force of the said motor 1 to the lead screw 2 side, the gear train 5 which used several sets of gears is provided. The gear train 5 is provided with a prime mover 5A on the rotation shaft of the motor 1, and a driven gear 5D on the lead screw 2, and the prime mover 5A and the driven gear. Idle gears 5B and 5C are engaged with each other between 5D. A pair of guides 6 and 6A are provided on both sides of the pickup 3 to guide the linear reciprocation of the pickup 3.

이와같이 구성된 종래의 광 디스크 플레이어의 픽업 이송장치는 먼저, 전기적인 동작신호에 따라 모터(1)를 구동시키게 된다. 이에 따라 상기 모터(1)의 회전축 상에 축설된 원동기어(5A)가 일측방향으로 회전하게 되고, 이의 회전력은 다시 아이들기어(5B)(5C)를 거쳐 리드스크류(2) 상에 압입 설치된 종동기어(5D)로 전달된다. 상기 종동기어(5D)가 회전함에 따라 리드스크류(2)는 일측 방향으로 회전하게 되고, 이의 회전으로 상기 리드스크류(2) 상에 밀착된 예압판(4)이 리드스크류(2)의 회전방향을 따라 이동함으로써 상기 예압판(4)에 연결된 픽업(3)을 레디얼 방향으로 가이드(6)(6A)를 따라 이송시킬 수 있도록 하고 있다.The pickup transport apparatus of the conventional optical disc player configured as described above first drives the motor 1 in accordance with an electrical operation signal. Accordingly, the prime mover 5A arranged on the rotational shaft of the motor 1 rotates in one direction, and the rotational force is driven by being pushed onto the lead screw 2 via the idle gears 5B and 5C again. It is transmitted to the gear 5D. As the driven gear 5D rotates, the lead screw 2 rotates in one direction, and by the rotation thereof, the preload plate 4 closely contacted on the lead screw 2 rotates in the direction of the lead screw 2. By moving along, the pickup 3 connected to the preload plate 4 can be transported along the guides 6 and 6A in the radial direction.

그러나 이러한 종래의 광 디스크 플레이어의 픽업 이송장치는 여러 조의 기어를 사용하기 때문에 기어열의 백래쉬에 의한 위치 변동 및 오차가 크게 발생될 뿐만 아니라 예압판의 스프링 힘에 의한 부하 변동이 커서 기기의 성능 및 신뢰성이 저하되는 문제점이 있었다. 또한 부품수가 많고 구조가 복잡하여 원가상승은 물론 생산성 저하를 초래하는 문제점이 있었다. 따라서 본 발명의 목적은 구조가 간단하면서도 백래쉬에 의한 위치 오차 및 스프링 하중 불균일에 의한 부하 변동를 제거하는데 있다.However, since the pick-up feeder of such a conventional optical disc player uses several sets of gears, the positional change and error caused by the backlash of the gear train are greatly generated, and the load fluctuation by the spring force of the preload plate is large, so that the performance and reliability of the device are high. There was a problem of this deterioration. In addition, the number of parts and the structure is complex, there is a problem that not only increases the cost but also decreases the productivity. Accordingly, an object of the present invention is to simplify the structure and to eliminate the load fluctuation caused by the backlash position error and the spring load unevenness.

도 1은 종래의 광 디스크 플레이어의 픽업 이송장치를 보인 평면도.1 is a plan view showing a pickup transfer device of a conventional optical disc player.

도 2는 본 발명에 의한 광 디스크 플레이어의 픽업 이송장치를 보인 평면도.Figure 2 is a plan view showing a pickup transport apparatus of the optical disk player according to the present invention.

**도면의주요부분에대한부호의설명**** description of the symbols for the main parts of the drawings **

10:모터 20:원동풀리10: motor 20: driven pulley

30:종동풀리 40:와이어30: driven pulley 40: wire

50:픽업 60:접촉돌기50: pickup 60: contact projection

70,70A:가이드70,70A: Guide

이러한 본 발명의 목적을 달성하기 위하여 구동력을 발생하는 모터와; 상기 모터의 회전축 상에 설치되어 모터의 구동력으로 회전하는 원동풀리와; 상기 원동풀리와 간격을 두고 동일선상에 회전가능하게 설치되는 종동풀리와; 상기 원동풀리와 종동풀리 사이를 상호 연결하여 원동풀리의 회전력을 종동풀리로 전달하는 앤드리스 와이어와; 상기 와이어에 일정 장력으로 접촉되고 픽업에 일체로 형성되는 접촉돌기와; 상기 픽업의 양측에 설치되어 픽업의 이송을 안내하는 가이드로 구성된 것을 특징으로 한 광 디스크 플레이어의 픽업 이송장치가 제공된다.A motor for generating a driving force to achieve the object of the present invention; A driving pulley installed on a rotation shaft of the motor to rotate with a driving force of the motor; A driven pulley rotatably installed on the same line at intervals from the prime pulley; An endless wire connecting the driven pulley and the driven pulley to transfer the rotational force of the driven pulley to the driven pulley; A contact protrusion contacting the wire with a predetermined tension and integrally formed with the pickup; There is provided a pickup transport apparatus of an optical disc player, which is provided on both sides of the pickup and constitutes a guide for guiding the transport of the pickup.

이하 첨부된 도면을 참조로 하여 본 발명의 구성을 실시예에 따라 상세히 설명한다.Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 의한 광 디스크 플레이어의 픽업 이송장치를 보인 것으로서, 이에 도시된 바와 같이 본 발명은 구동력을 발생하는 모터(10)가 설치되고, 상기 모터(10)의 회전축 상에는 모터(10)의 구동력에 의해서 상기 회전축과 함께 회전하는 원동풀리(20)가 설치된다. 또한 상기 원동풀리(20)의 타측부 동일선 상에는 간격을 두고 종동풀리(30)가 회전이 자유롭게 설치된다. 그리고 상기 원동풀리(20)와 종동풀리(30) 사이는 앤드리스 와이어(40)에 의해서 상호 연결되어져 원동풀리(20)의 회전력을 종동풀리(30)로 전달하도록 구성된다. 이와함께 픽업(50)의 양측에는 통상에서와 같이 상기 픽업(50)의 직선운동을 안내하는 한 쌍의 가이드(70)(70A)가 설치되고, 픽업(50)의 일측부에는 일정 장력으로 와이어(40)에 접촉되는 접촉돌기(60)가 일체로 형성된다. 이와같이 구성된 본 발명은 먼저, 모터(10)를 구동시킨다. 상기 모터(10)의 구동력은 회전축을 통해 상기 회전축에 설치된 원동풀리(20)로 전달되어 상기 원동풀리(20)를 회전시키게 되고, 원동풀리(20)의 회전력은 다시 와이어(40) 전동으로 종동풀리(30)를 회전시키게 된다. 이때 상기 와이어(40)에 일정 장력으로 접촉된 접촉돌기(60)는 와이어(40)와의 마찰력으로 상기 와이어(40)의 진행방향을 따라 이동하게 되고, 이의 이동으로 픽업(50)이 일측 방향으로 이송된다. 그리고 상기 모터(10)의 역방향으로 구동시키게 되면 원동풀리(20) 및 종동풀리(30), 와이어(40) 모두 역방향으로 회전되고, 상기 와이어(40)에 접촉된 접촉돌기(60) 또한 와이어(40)의 진행방향을 따라 역방향으로 이동됨으로써 픽업(50)을 상기의 반대방향으로 이송시킬 수 있게 되는 것이다. 이와함께 상기 픽업(50)은 통상에서와 같이 양측 가이드(70)(70A)의 안내를 받고 디스크의 레디얼 방향으로 직선왕복운동을 한다.Figure 2 shows a pickup transport apparatus of an optical disk player according to the present invention, as shown in the present invention, a motor 10 for generating a driving force is installed, the motor 10 on the rotation axis of the motor 10 The driving pulley 20 is rotated by the driving force of the rotating shaft. In addition, the driven pulley 30 is freely rotated at intervals on the same line of the other side of the driven pulley 20. And between the driven pulley 20 and the driven pulley 30 is interconnected by the endless wire 40 is configured to transfer the rotational force of the driven pulley 20 to the driven pulley (30). At the same time, a pair of guides 70 and 70A are provided on both sides of the pickup 50 to guide the linear movement of the pickup 50 as usual, and one side of the pickup 50 has a wire with a constant tension. The contact protrusion 60 in contact with the 40 is integrally formed. The present invention configured as described above first drives the motor 10. The driving force of the motor 10 is transmitted to the driving pulley 20 installed on the rotating shaft through the rotating shaft to rotate the driving pulley 20, and the rotational force of the driving pulley 20 is driven by the wire 40 again. The pulley 30 is rotated. At this time, the contact protrusion 60 in contact with the wire 40 with a predetermined tension is moved along the advancing direction of the wire 40 by the frictional force with the wire 40, the pickup 50 is moved in one direction by the movement thereof. Transferred. In addition, when driven in the reverse direction of the motor 10, both the driving pulley 20, the driven pulley 30, and the wire 40 are rotated in the reverse direction, and the contact protrusion 60 in contact with the wire 40 is also a wire ( By moving in the reverse direction along the traveling direction of 40, it is possible to transport the pickup 50 in the opposite direction. In addition, the pickup 50 is guided by both guides 70 and 70A as usual, and performs a linear reciprocating motion in the radial direction of the disc.

이같이 본 발명은 와이어 전동으로 픽업을 디스크의 레디얼 방향으로 이송시킬 수 있도록 함으로써 기존의 백래쉬에 의한 위치 오차를 근본적으로 제거할 수 있을 뿐만 아니라 예압판의 스프링 하중 불균일에 따른 부하 변동이 없어 기기의 성능 및 신뢰성을 보다 향상시킬 수 있는 효과를 갖게 된다. 또한 구조가 간단하고 부품수가 적어 원가절감은 물론 생산성 향상을 기할 수 있는 효과가 있다.As such, the present invention enables the transfer of the pickup in the radial direction of the disc by wire transmission, thereby not only fundamentally eliminating the positional error caused by the existing backlash, but also eliminating the load variation due to the spring load unevenness of the preload plate. And it has an effect which can improve reliability more. In addition, since the structure is simple and the number of parts is small, it is possible to reduce costs and improve productivity.

Claims (1)

구동력을 발생하는 모터와; 상기 모터의 회전축 상에 설치되어 모터의 구동력으로 회전하는 원동풀리와; 상기 원동풀리와 간격을 두고 동일선상에 회전가능하게 설치되는 종동풀리와; 상기 원동풀리와 종동풀리 사이를 상호 연결하여 원동풀리의 회전력을 종동풀리로 전달하는 앤드리스 와이어와; 상기 와이어에 일정 장력으로 접촉되고 픽업에 일체로 형성되는 접촉돌기와; 상기 픽업의 양측에 설치되어 픽업의 이송을 안내하는 가이드로 구성된 것을 특징으로 한 광 디스크 플레이어의 픽업 이송장치.A motor for generating a driving force; A driving pulley installed on a rotation shaft of the motor to rotate with a driving force of the motor; A driven pulley rotatably installed on the same line at intervals from the prime pulley; An endless wire connecting the driven pulley and the driven pulley to transfer the rotational force of the driven pulley to the driven pulley; A contact protrusion contacting the wire with a predetermined tension and integrally formed with the pickup; Pick-up transfer device of the optical disc player, characterized in that the guide is provided on both sides of the pickup to guide the transfer of the pickup.
KR1019980053133A 1998-12-04 1998-12-04 Pick-up Transfer Unit for Optical Disc Player KR100531778B1 (en)

Priority Applications (1)

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KR1019980053133A KR100531778B1 (en) 1998-12-04 1998-12-04 Pick-up Transfer Unit for Optical Disc Player

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KR1019980053133A KR100531778B1 (en) 1998-12-04 1998-12-04 Pick-up Transfer Unit for Optical Disc Player

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KR20000038226A true KR20000038226A (en) 2000-07-05
KR100531778B1 KR100531778B1 (en) 2006-02-08

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6011559B2 (en) * 1980-03-24 1985-03-26 株式会社日立製作所 positioning mechanism
KR930006574Y1 (en) * 1988-10-31 1993-09-28 삼성전기 주식회사 Pick-up operating device
KR950012338A (en) * 1993-10-12 1995-05-16 배순훈 Pickup Transfer Device
JP3349287B2 (en) * 1995-02-07 2002-11-20 三洋電機株式会社 Pickup feeder
JPH09231694A (en) * 1996-02-26 1997-09-05 Nippon Columbia Co Ltd Wire driving device
KR980004945U (en) * 1996-06-29 1998-03-30 Pickup transfer unit for compact disc player
KR19990000471U (en) * 1997-06-10 1999-01-15 김영환 Pickup Stabilization Structure

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