KR20020054577A - Apparatus for moving optical pickup of optical disc device - Google Patents

Apparatus for moving optical pickup of optical disc device Download PDF

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Publication number
KR20020054577A
KR20020054577A KR1020000083722A KR20000083722A KR20020054577A KR 20020054577 A KR20020054577 A KR 20020054577A KR 1020000083722 A KR1020000083722 A KR 1020000083722A KR 20000083722 A KR20000083722 A KR 20000083722A KR 20020054577 A KR20020054577 A KR 20020054577A
Authority
KR
South Korea
Prior art keywords
gear
pickup
lead screw
cover
gear cover
Prior art date
Application number
KR1020000083722A
Other languages
Korean (ko)
Inventor
심관보
Original Assignee
엘지전자 주식회사
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 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020000083722A priority Critical patent/KR20020054577A/en
Publication of KR20020054577A publication Critical patent/KR20020054577A/en

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Classifications

    • 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
    • G11B7/08582—Sled-type positioners
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
    • G11B33/027—Covers

Landscapes

  • Moving Of Heads (AREA)

Abstract

PURPOSE: A pickup transferring device of an optical disk device is provided to have a gear cover preventing the separation of gears, and to arrange a hole gearing with a boss arranged in a sled base, to configure the gear cover with a simple structure and for a wafer-thin device. CONSTITUTION: A gear cover(8) is inserted in a sled base, to cover a gear(4a) of a lead screw(4), a gear(5a) of a sled motor(5), and a shaft gear(6). A hole, or a cover hook(8b) coupled to a boss arranged in the sled base is formed in one side of the gear cover, thereby fixing the gear cover without an additional coupling unit such as a screw. A boss(8a) is arranged in a surface of the gear cover opposite to an axis of the lead screw and elastically supports one side of the lead screw, to prevent the lead screw from shaking in an axial direction and correctly transfer a pickup.

Description

광디스크 장치의 픽업이송장치 { Apparatus for moving optical pickup of optical disc device }Pickup transfer device of optical disc device {Apparatus for moving optical pickup of optical disc device}

본 발명은 광디스크 장치에 관한 것으로 특히 픽업을 이송하는 장치에 관한 것이다.The present invention relates to an optical disc apparatus, and more particularly to an apparatus for transporting a pickup.

광디스크는 최근 CD(Compact Disc)에서 DVD(Digital Versatile Disc)에 이르기까지 정보저장매체로서 곽광을 받고 있다. 즉, CD/DVD 플레이어 등의 오디오/비디오 응용기기, CD/DVD-ROM(Read Only Memory) 드라이브(Drive)등의 컴퓨터 주변기기로서 널리 보급되고 있다.Recently, optical discs are receiving attention as information storage media ranging from compact discs (CDs) to digital versatile discs (DVDs). That is, it is widely used as computer peripheral devices, such as audio / video application devices, such as a CD / DVD player, and a CD / DVD-ROM (Read Only Memory) drive.

이러한 광디스크는 통상 레이저빔을 광디스크에 조사하여 그 반사광을 검출함으로써 기록된 정보를 읽어낸다. 이러한 동작을 수행하는 광픽업은, 광디스크상의 내주에서 외주로 연장되어 배치된 트랙을 따라가면서 정보를 읽는 동작을 수행하는 것이다.Such an optical disc normally reads the recorded information by irradiating a laser beam to the optical disc and detecting the reflected light. The optical pickup for performing such an operation is to perform an operation of reading information while following a track arranged to extend from the inner circumference to the outer circumference of the optical disc.

광픽업을 통상 도 1에 나타낸 바와 같이 턴테이블(2)에 안착된 광디스크(미도시)의 내주에서 외주까지 반경방향으로 이동시키기 위하여 픽업(1)이 슬레드 샤프트(3)에 조립된다. 또한, 픽업(1)은 그 일측이 리드 스크류(4)에 연결되어 있어 후술하는 바와 같이 리드 스크류(4)의 회전에 의하여 내주 또는 외주측으로 이동하는 것이다.The pickup 1 is assembled to the sled shaft 3 to move the optical pickup radially from the inner circumference to the outer circumference of the optical disc (not shown) seated on the turntable 2 as shown in FIG. 1. In addition, one side of the pickup 1 is connected to the lead screw 4, so as to be described later, the pickup 1 moves to the inner circumferential or outer circumferential side by the rotation of the lead screw 4.

리드 스크류(4)는 도 2에 나타낸 바와 같이 슬레드 모터(5)의 회전력을 샤프트기어(6)을 통해 전달 받음으로써 회전하게 된다. 샤프트 기어(6)는 슬레드 모터(5)에 압입된 기어(5a)와, 리드 스크류(4)의 일단에 압입된 기어(4a)에 연결되어 있다.The lead screw 4 is rotated by receiving the rotational force of the sled motor 5 through the shaft gear 6 as shown in FIG. The shaft gear 6 is connected to the gear 5a pressed into the sled motor 5 and the gear 4a pressed into one end of the lead screw 4.

이러한 기어(4a, 5a, 6)들은 이탈되지 않도록 기어커버(7)가 이들을 덮고 있다.The gear covers 7 cover them so that these gears 4a, 5a, 6 are not separated.

기어커버(7)는 통상 금속판으로 되어 있으며, 도 1에 나타낸 바와 같이 나사로 조립한다.The gear cover 7 is usually made of a metal plate, and is assembled with screws as shown in FIG.

그러나, 이러한 구조는 노트북(notebook) 컴퓨터 등과 같이 박형화된 디스크장치가 요구되는 경우에는 부적합한 문제가 있다. 또한, 나사로 조립하기 때문에 조립성이 나쁘다는 문제도 있다.However, this structure is inadequate when a thin disk device such as a notebook computer is required. In addition, there is also a problem that the assemblability is poor because of assembling with screws.

따라서, 본 발명의 목적은 이러한 문제를 해결하여 보다 개선된 광픽업 이송장치를 제공하는 데 있다.Accordingly, it is an object of the present invention to solve this problem and to provide an improved optical pickup transport apparatus.

도 1은 종래의 광디스크 장치를 보인 도면,1 is a view showing a conventional optical disk device,

도 2는 종래의 픽업이송장치를 보인 도면,2 is a view showing a conventional pickup transport apparatus,

도 3은 본 발명에 따른 픽업이송장치를 보인 도면,3 is a view showing a pickup transport apparatus according to the present invention,

도 4는 본 발명에 따른 슬레드 베이스에 마련된 돌기를 보인 도면.Figure 4 is a view showing the projection provided on the sled base according to the present invention.

위 목적을 달성하기 위하여, 본 발명에 따른 광디스크 장치의 픽업 이송 장치는, 슬레드 사프트에 조립된 픽업을 이동시키기 위한 리드 스크류, 슬레드 모터, 상기 모터로부터 리드 스크류에의 동력전달을 위한 적어도 하나의 기어, 상기 기어의 이탈을 방지하는 기어커버를 구비하고, 상기 기어커버에는 슬레드베이스에 마련된 돌기와 치합되는 구멍이 마련된 것을 특징으로 한다.In order to achieve the above object, the pickup transport apparatus of the optical disk apparatus according to the present invention, a lead screw for moving the pickup assembled to the sled shaft, a sled motor, at least one for power transmission from the motor to the lead screw The gear, the gear cover is provided to prevent the departure of the gear, characterized in that the gear cover is provided with a hole that is engaged with the protrusion provided in the sled base.

이하, 본 발명에 따른 실시예를 도 3 내지 도 4을 참조하여 설명한다.Hereinafter, embodiments of the present invention will be described with reference to FIGS. 3 to 4.

도 3은 본 발명에 따른 픽업이송장치를 나타낸 것으로, 도 1 및 도 2를 참조한 종래기술 설명에서의 슬레드 샤프트(3), 리드 스큐류(4), 슬레드 모터(5) 등 픽업 이송을 위한 기본적인 구조는 종래와 동일하다.Figure 3 shows a pickup transport apparatus according to the present invention, in the prior art description with reference to Figures 1 and 2, the pickup transport such as the sled shaft 3, lead skew (4), sled motor (5) The basic structure is the same as in the prior art.

따라서, 변경된 부분만을 설명하기로 한다.Therefore, only changed parts will be described.

기어커버(8)는 리드 스크류(4)의 기어(4a), 슬레드 모터(5)의 기어(5a)와 샤프트 기어(6)를 덮도록 슬레드 베이스에 압입되는 구조로 되어 있다.The gear cover 8 is structured to be press-fitted into the sled base so as to cover the gear 4a of the lead screw 4, the gear 5a of the sled motor 5 and the shaft gear 6.

또한 기어 커버(8)의 일측에는, 도 4와 같이 슬레드 베이스에 마련된 돌기(9)와 결합되는 구멍(커버후크)(8b)이 마련되어 있어, 나사 등 별도의 체결수단없이 기어커버를 고정할 수 있는 것이다.In addition, one side of the gear cover 8 is provided with a hole (cover hook) 8b that is engaged with the protrusion 9 provided in the sled base as shown in FIG. 4, so that the gear cover can be fixed without a separate fastening means such as a screw. It can be.

더 나아가 커버(8)에는 리드 스크류(4) 축과 대향하는 면에 돌기(부시 부분)(8a)가 마련되어 있어 리드 스크류(4)의 일측을 탄성적으로 지지하여, 리드 스크류가 축방향으로 요동하는 것을 방지함으로써 정확하게 픽업을 이송할 수 있다.Furthermore, the cover 8 is provided with a projection (bush portion) 8a on a surface opposing the lead screw 4 axis to elastically support one side of the lead screw 4, so that the lead screw swings in the axial direction. The pick-up can be conveyed accurately by preventing it.

이상, 본 발명의 일실시예에 관하여 설명하였지만, 본 발명은 상기 실시예에만 한정되는 것은 아니고 본 발명의 요지를 벗어나지 않는 범위 내에서 충분히 수정 또는 변형하여 실시할 수 있다.As mentioned above, although one Embodiment of this invention was described, this invention is not limited only to the said Example, It can implement by a sufficient correction or modification within the range which does not deviate from the summary of this invention.

이상에서와 같이 본 발명에 의하면, 기어커버를 간단한 구성으로 하여 박형화 및 재료비 절감에 유리한 픽업이송장치를 제공할 수 있는 효과가 있다.As described above, according to the present invention, the gear cover can be provided with a simple configuration to provide a pickup and transfer device which is advantageous in thinning and reducing material costs.

Claims (2)

광디스크 장치의 픽업 이송 장치에 있어서,In the pickup transport apparatus of the optical disk device, 슬레드 사프트에 조립된 픽업을 이동시키기 위한 리드 스크류, 슬레드 모터, 상기 모터로부터 리드 스크류에의 동력전달을 위한 적어도 하나의 기어, 상기 기어의 이탈을 방지하는 기어커버를 구비하고,A lead screw for moving the pickup assembled to the sled shaft, a sled motor, at least one gear for power transmission from the motor to the lead screw, and a gear cover for preventing separation of the gear, 상기 기어커버에는 슬레드베이스에 마련된 돌기와 치합되는 구멍이 마련된 것을 특징으로 하는 픽업이송장치.The gear cover is a pickup transport device, characterized in that provided with a hole that is engaged with the projection provided in the sled base. 제1항에 있어서,The method of claim 1, 상기 기어커버에는 상기 리드 스크류에 축방향으로 압력을 가하는 돌기가 마련된 것을 특징으로 하는 픽업 이송장치.The gear cover is provided with a projection for applying pressure in the axial direction to the lead screw pickup pickup device.
KR1020000083722A 2000-12-28 2000-12-28 Apparatus for moving optical pickup of optical disc device KR20020054577A (en)

Priority Applications (1)

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KR1020000083722A KR20020054577A (en) 2000-12-28 2000-12-28 Apparatus for moving optical pickup of optical disc device

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KR1020000083722A KR20020054577A (en) 2000-12-28 2000-12-28 Apparatus for moving optical pickup of optical disc device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030084505A (en) * 2002-04-27 2003-11-01 엘지전자 주식회사 Apparatus for sending pickup in optical disk player

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030084505A (en) * 2002-04-27 2003-11-01 엘지전자 주식회사 Apparatus for sending pickup in optical disk player

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