KR0126842Y1 - An impact alleviation device of optical pick-up actuator - Google Patents
An impact alleviation device of optical pick-up actuatorInfo
- Publication number
- KR0126842Y1 KR0126842Y1 KR2019950030950U KR19950030950U KR0126842Y1 KR 0126842 Y1 KR0126842 Y1 KR 0126842Y1 KR 2019950030950 U KR2019950030950 U KR 2019950030950U KR 19950030950 U KR19950030950 U KR 19950030950U KR 0126842 Y1 KR0126842 Y1 KR 0126842Y1
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- KR
- South Korea
- Prior art keywords
- optical pickup
- pickup actuator
- elastic
- actuator
- elastic member
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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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/121—Protecting the head, e.g. against dust or impact with the record carrier
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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
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Moving Of Heads (AREA)
Abstract
본 고안은 광픽업 액츄에이터의 충격 완화장치에 관한 것으로서, 구동모터(10)의 변속을 받아 회전하는 변속기어부(20)의 피이드기어(21)에 맞물려서 회전하는 회전축(50)에 의해 수평으로 이동하는 광픽업 액츄에이터(60)의 로딩장치에 있어서, 상기 변속기어부(20)의 피이드기어(21) 측면부에 부설되어 외측으로 갈수록 반경이 커지는 경사홈(31)을 갖는 끼움부재(30)와 상기 끼움부재(30)의 경사홈(31)에 끼워지는 탄성돌기(43)가 몸체(41)의 측면부에 환형으로 다수개 형성되고, 상기 회전축(50) 외주부에 끼움공(42)이 끼워져 광픽업 액츄에이터(60)의 측면부에 설치되는 탄성부재(40)로 구성된 것을 특징으로 하는 광픽업 액츄에이터의 충격 완화장치인바, 광픽업 액츄에이터와 턴테이블 어셈블리가 충격에 의해 서로 파손되는 것을 방지해 준다.The present invention relates to a shock absorbing device of an optical pickup actuator, which is moved horizontally by a rotating shaft (50) engaged with a feed gear (21) of a transmission gear portion (20) which rotates in response to a shift of a driving motor (10). In the loading device of the optical pickup actuator 60, the fitting member 30 and the fitting member having an inclined groove 31 which is attached to the side of the feed gear 21 of the transmission gear portion 20 and the radius thereof increases toward the outside. A plurality of elastic protrusions 43 fitted into the inclined grooves 31 of the 30 are formed in an annular portion at the side of the body 41, and the fitting holes 42 are fitted to the outer circumferential portion of the rotation shaft 50 so that the optical pickup actuator ( The shock absorbing device of the optical pickup actuator, characterized in that it is composed of an elastic member 40 installed on the side of the 60, to prevent the optical pickup actuator and the turntable assembly from being damaged by the impact.
Description
제1도는 일반적인 광픽업 액츄에이터 로딩장치의 사시도.1 is a perspective view of a general optical pickup actuator loading device.
제2도는 본 고안에 따른 충격 완화장치의 구성도.2 is a block diagram of a shock absorber according to the present invention.
제3도는 본 고안에 따른 탄성부재 사시도.3 is a perspective view of the elastic member according to the present invention.
제4도는 본 고안에 따른 충격 완화장치의 사용 상태도.4 is a state of use of the shock absorber according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
30 : 고정부재 31 : 경사홈30: fixing member 31: inclined groove
40 : 탄성부재 43 : 탄성돌기40: elastic member 43: elastic projection
본 고안은 광픽업 액츄에이터에 관한 것으로서, 특히, 광픽업 액츄에이터가 로딩장치에 의해 수평으로 이동할 때 충돌에 의해 파손되는 것을 방지하기 위해 광픽업 액츄에이터를 이송시키는 위엄기어 회전축에 탄성력을 갖는 충격완충용 부재를 설치하여 광픽업 액츄에이터의 이동시 발생되는 충격을 흡수하여 광픽업 액츄에이터의 파손을 방지하도록 해주는 광픽업 액츄에이터의 충격 완화장치에 관한 것이다.The present invention relates to an optical pickup actuator, and in particular, an impact buffer member having an elastic force on an axis of rotation of a dignity gear for transferring the optical pickup actuator to prevent the optical pickup actuator from being damaged by a collision when the optical pickup actuator is moved horizontally by the loading device. The present invention relates to a shock absorbing device for an optical pickup actuator that absorbs a shock generated when the optical pickup actuator is moved to prevent damage of the optical pickup actuator.
일반적으로 광픽업 액츄에이터는 미니 디스크 플레이어(MDP), 콤팩트 디스크 플레이어(CDP)나 레이져 디스크 플레이어(LDP)와 같은 각종 광학 디스크 플레이어의 광기록 매체인 시스크 수작하방에 설치되어 그 디스크의 래디얼 방향으로 직선 이동하면서 디스크상에서 원하는 트랙위치를 검출하고, 검출된 트랙위치에서는 디스크면상에 기록된 피트에 레이져 광을 입사시킨 다음 그 반사광을 광학계를 통하여 검출하고 이렇게 검출된 반사광을 신호로 변환시켜서 디스크면상의 기록내용을 재생하도록 하는 장치이다.In general, optical pickup actuators are installed below the disks of the optical recording medium of various optical disc players such as mini disc players (MDPs), compact disc players (CDPs), and laser disc players (LDPs), and in the radial direction of the discs. While detecting the desired track position on the disk while moving in a straight line, at the detected track position, laser light is incident on the pit recorded on the disk surface, and then the reflected light is detected through the optical system, and the detected reflected light is converted into a signal to A device for reproducing the recorded content.
그리고, 제1도는 종래의 광픽업 장치의 외관 사시도로서 일반적인 광픽업 구동 장치의 구성은 동력을 발생하는 구동모터(1)와, 상기 구동 모터(1)의 동력을 적절하게 변속시키는 변속기어부(3)와, 상기 변속기어부(3)의 마지막 기어치에 맞물려서 회전하고, 일정구간 위엄기어치(4a)가 형성된 회전축(4)과, 상기 회전축(4)의 위엄기어치(4a)에 맞물려서 수평으로 이동하고, 상부면에 안치된 디스크 상에 초점을 맞추어서 신호를 재생하는 광픽업 액츄에이터(5)와, 상기 광픽업 액츄에이터(5)와 전기적 신호를 메인 베이스에서 서로 교환하기 위해 광픽업 액츄에이터(5)에 플레서블하게 연결된 플렉서블 피씨비(6)로 구성된다.1 is an external perspective view of a conventional optical pickup device. The general optical pickup drive device includes a drive motor 1 for generating power and a transmission gear part 3 for appropriately shifting power of the drive motor 1. ), The rotary shaft 4 is rotated in engagement with the last gear value of the transmission gear part 3, and is horizontally engaged with the rotary shaft 4 on which the dignity gear 4a is formed, and the dignity gear 4a of the rotary shaft 4. An optical pickup actuator 5 for moving and reproducing a signal focusing on a disc set on an upper surface, and an optical pickup actuator 5 for exchanging the optical pickup actuator 5 and an electrical signal at a main base with each other; It consists of a flexible PC (6) connected to the flexible.
그리고, 상기 회전축(4)의 위엄기어치(4a)에 맞물려 수평으로 이동하는 광픽업 액츄에이터(5)의 수평이동거리를 제한하기 위해 광픽업 액츄에이터(5)가 이동거리를 벗어난 지점에 광픽업 액츄에이터(5)의 측면부에 접촉되어 구동모터(1)의 회전을 정지시키는 리미트스위치(미도시)가 설치되어 있다.Then, in order to limit the horizontal movement distance of the optical pickup actuator 5 which is engaged with the dignity gear 4a of the rotary shaft 4 and moves horizontally, the optical pickup actuator 5 is located at a point out of the movement distance. A limit switch (not shown) is provided in contact with the side surface of (5) to stop the rotation of the drive motor 1.
이와같이, 컴팩트 디스크 플레이어에 디스크를 안치시켜 작동시키게 되면 구동모터(1)가 일정한 회전수로 회전하여 맞물려있는 변속기어부(3)를 통해 회전축(4)을 회전시키고, 회전축(4)의 위엄기어치(4a)에 맞물려 있는 광픽업 액츄에이터(5)가 수평으로 이송하면서 광픽업 액츄에이터(5)의 대물렌즈를 통해 레이져 광을 디스크의 저면에 초점을 맞추어서 디스크내에 기록된 내용을 재생시키게 된다.In this way, when the disc is placed in the compact disc player and operated, the drive motor 1 rotates at a constant rotational speed to rotate the rotary shaft 4 through the meshed transmission gear portion 3, and the majestic gear of the rotary shaft 4 is rotated. The optical pickup actuator 5 engaged with (4a) horizontally transfers the laser light to the bottom surface of the disk to reproduce the contents recorded in the disk through the objective lens of the optical pickup actuator 5.
한편, 광픽업 액츄에이터(5)가 디스크 재생거리를 벗어난 지역으로 이동하게 되면 광픽업 액츄에이터(5)의 측면부가 로딩장치 적소에 설치된 리미트스위치에 접촉되면서 전원을 오프시켜서 구동모터(1)의 회전을 정지시키게 된다.On the other hand, when the optical pickup actuator (5) is moved to an area outside the disc play distance, the side of the optical pickup actuator (5) is in contact with the limit switch installed in place of the loading device to turn off the power to rotate the drive motor (1) Stopped.
그런데, 종래에는 구동모터(1)에 의해 수평이동하는 광픽업 액츄에이터(5)의 이동을 제한하는 리미트스위치가 구동모터(1)의 전원을 치단시키는 역할 이외에도 광픽업 액츄에이터의 이동시 발생되는 충격을 흡수하여 완충하는 역할도 수행하는 것인데 종래에는 사용도중 리미트스위치에 고장이 발행하여 제대로 동작하지 않게 되면 광픽업 액츄에이터(5)가 정지하지 않고서 턴테이블 또는 스핀들 모터등에 부딪히게 되어서 주요 부품들이 파손될 우려가 존재했었다.However, in the related art, a limit switch for limiting the movement of the optical pickup actuator 5 horizontally moved by the driving motor 1 absorbs the shock generated when the optical pickup actuator is moved, in addition to the role of cutting the power of the driving motor 1. In the related art, when a limit switch is issued during use and malfunctions, the optical pickup actuator 5 does not stop and hits the turntable or the spindle motor, causing major components to be damaged. .
본 고안은 이러한 점을 감안하여 안출한 것으로서, 광픽업 액츄에이터가 로딩장치에 의해 수평으로 이동할 때 충돌에 의해 파손되는 것을 방지하기 위해 광픽업 액츄에이터를 이송시키는 위엄기어 회전축에 탄성력을 갖는 충격완충용 부재를 설치하여서 광픽업 액츄에이터가 부딪혀서 파손되는 것을 방지하는 것이 목적이다.The present invention has been made in view of this point, and the impact buffer member having an elastic force on the axis of rotation of the dignity gear for transferring the optical pickup actuator to prevent the optical pickup actuator from being damaged by a collision when the optical pickup actuator is moved horizontally by the loading device The purpose of this is to prevent the optical pickup actuator from being hit and broken.
이러한 목적은 구동모터의 변속을 받아 회전하는 변속기어부의 피이드기어에 맞물려서 회전하는 회전축에 의해 수평으로 이동하는 광픽업 액츄에이터의 로딩장치에 있어서, 상기 변속기어부의 피이드기어 측면부에 부설되어 외측으로 갈수록 반경이 커지는 경사홈을 갖는 끼움부재와, 상기 끼움부재의 경사홈에 끼워지는 탄성돌기가 몸체의 측면부에 환형으로 다수개 형성되고, 상기 회전축 외주부에 끼움공이 끼워져 설치되는 탄성부재로 구성된 광픽업의 충격 완화장치를 제공하므로써 달성된다.The object of the present invention is a loading device of an optical pickup actuator that is horizontally moved by a rotating shaft that is engaged with a feed gear of a transmission gear that rotates in response to a shift of a drive motor, the radius of which is attached to the side of the feed gear of the transmission gear, The shock of the optical pickup consisting of a fitting member having an enlarged inclined groove, and a plurality of elastic projections fitted into the inclined groove of the fitting member are formed in a plurality of annular parts on the side surface of the body, and the fitting member is inserted into the outer peripheral portion of the rotating shaft. Achieved by providing a mitigation device.
이하, 첨부도면에 의거하여 본 고안의 구성을 상세히 설명하도록 한다.Hereinafter, on the basis of the accompanying drawings to explain the configuration of the present invention in detail.
제2도 내지 제4도에 도시된 바와같이, 본 고안의 구성은 구동모터(10)의 변속을 받아 회전하는 변속기어부(20)의 피이드기어(21)에 맞물려서 회전하는 회전축(50)에 의해 수평으로 이동하는 광픽업 액츄에이터(60)의 로딩장치에 있어서, 상기 변속기어부(20)의 피이드기어(21) 측면부에 부설되어 외측으로 갈수록 반경이 커지는 경사홈(31)을 갖는 끼움부재(30)와, 상기 끼움부재(30)의 경사홈(31)에 끼워지는 탄성돌기(43)가 몸체(41)의 측면부에 환형으로 다수개 형성되고, 상기 회전축(50) 외주부에 끼움공이 끼워져 설치되는 탄성부재(40)로 구성된 것이다.As shown in Figures 2 to 4, the configuration of the present invention by the rotation shaft 50 is engaged with the feed gear 21 of the transmission gear portion 20 that rotates in response to the shift of the drive motor 10. In the loading device of the optical pickup actuator 60 to move horizontally, the fitting member 30 having an inclined groove 31 is provided in the side of the feed gear 21 of the transmission gear portion 20 to increase the radius toward the outside And, the plurality of elastic protrusions 43 to be fitted in the inclined groove 31 of the fitting member 30 is formed in a plurality of annular portion in the side portion of the body 41, the elasticity is fitted to the fitting hole is installed in the outer peripheral portion of the rotary shaft 50 The member 40 is comprised.
그리고, 상기 탄성부재(40)의 탄성돌기(43)는 끝단부가 외주방향으로 둥글게 형성되고, 탄성돌기(43) 사이에는 일정한 간격을 갖도록 구성된다.In addition, the elastic protrusion 43 of the elastic member 40 is formed so that the end portion is rounded in the outer circumferential direction, and has a predetermined interval between the elastic protrusions 43.
또한, 상기 탄성부재(40)의 끼움공(42)은 회전축(50)의 외주면과 일정한 간격을 갖도록 구성되어서 탄성부재(42)가 회전축(50)에서 자유롭게 회전하도록 해준다.In addition, the fitting hole 42 of the elastic member 40 is configured to have a predetermined interval with the outer circumferential surface of the rotating shaft 50 to allow the elastic member 42 to rotate freely on the rotating shaft 50.
이하, 첨부도면에 의거하여 본 고안의 작용, 효과를 상세히 설명하도록 한다.Hereinafter, on the basis of the accompanying drawings to explain the operation, the effect of the present invention in detail.
먼저, 컴팩트 디스크 플레이어의 덱크내에 감상하고자 하는 디스크를 장착시켜서 턴테이블 어셈블리(80)상에 안치시킨 후, 플레이버튼을 눌러서 컴팩트 디스크 플레이어를 작동시키게 되면 구동모터(10)가 회전하여 변속기어부(20)에서 기어변속에 이루어지게 된다.First, the disc to be watched is mounted in the deck of the compact disc player and placed on the turntable assembly 80. Then, when the compact disc player is operated by pressing the play button, the drive motor 10 rotates to shift the gear unit 20. To the gearshift.
그리고, 상기 변속기어부(20)의 마지막 기어인 피이드기어(21) 회저하게 되면, 피이드기어(21)가 측면부에 부설된 고정부재(30) 역시 같이 회전하는 상태로 있으면서 피이드기어(21)에 끼움 결합된 회전축(50)이 소정의 방향으로 회전하게 된다.When the feed gear 21, which is the last gear of the transmission gear 20, is rotated, the feed gear 21 is fitted to the feed gear 21 while the fixing member 30 attached to the side portion also rotates together. The combined rotation shaft 50 rotates in a predetermined direction.
한편, 회전축(50)의 외주부에 형성된 위엄기어치(51)에 맞물려 있는 광픽업 액츄에이터(60)가 회전축(50)의 회전에 따라 일정한 수평방향으로 안내축(70)을 따라서 이동하게 된다.On the other hand, the optical pickup actuator 60 engaged with the dignity gear 51 formed on the outer circumferential portion of the rotary shaft 50 is moved along the guide shaft 70 in a constant horizontal direction in accordance with the rotation of the rotary shaft 50.
이때, 광픽업 액츄에이터(60)가 턴테이블 어셈블리(80) 쪽으로 이동하게 되면 회전축(50) 외주부에 끼워져 있는 탄성부재(40)가 끼움부재(30) 쪽으로 같이 이동하게 된다.At this time, when the optical pickup actuator 60 is moved toward the turntable assembly 80, the elastic member 40 fitted to the outer circumferential portion of the rotation shaft 50 moves together toward the fitting member 30.
이와같이, 탄성부재(40)의 이동에 의해 탄성부재(40)의 탄성돌기(43)가 고정부재(30)의 경사홈(31)내에 진입하게 되고, 피이드기어(21)와 함께 회전하는 고정부재(30)에 의해 경사홈(31)이 회전하면서 내부로 삽입된 탄성돌기(43)를 비틀어 조여주게 되면서, 회전축(50)의 회전을 탄성적으로 저지시키게 되어 광픽업 액츄에이터(60)가 부드럽고 완만하게 이동이 정지되도록 해준다.As such, the elastic protrusion 43 of the elastic member 40 enters into the inclined groove 31 of the fixing member 30 by the movement of the elastic member 40, and the fixing member rotates together with the feed gear 21. As the inclined groove 31 rotates by twisting the elastic protrusion 43 inserted thereinto, the optical pickup actuator 60 is smooth and gentle as the rotational shaft 50 is elastically prevented from being rotated by the inclined groove 31. To stop the movement.
이와같이, 광픽업 액츄에이터(60)가 턴테이블 어셈블리(80) 쪽으로 이송되는 것을 적절하게 규제해주고, 이송시 발생되는 충격력을 탄성적으로 적절하게 흡수시켜주는 것이다.As such, the optical pickup actuator 60 is appropriately regulated to be transferred toward the turntable assembly 80, and elastically appropriately absorbs the impact force generated during the transfer.
따라서, 종래의 광픽업 액츄에이터가 로딩장치에 의해 수평으로 이동될 때 충돌에 의해 파손될 우려가 있었으나 본 고안에 따른 충격 완화장치를 사용하게 되면, 변속기어부의 피이드기어 측면부에 경사홈을 갖는 끼움부재를 부설하고, 그 끼움부재의 경사홈에 끼워지는 탄성돌기를 갖는 탄성부재를 회전축 외주면에 설치하여 광픽업 액츄에이터가 턴테이블 어셈블리에 부드럽고 탄성적으로 접촉되므로써 광픽업 액츄에이터 및 턴테이블 어셈블리 등이 타손되는 것을 방지하도록 해주는 매우 유용한 고안인 것이다.Therefore, when the conventional optical pickup actuator is moved horizontally by the loading device, there is a possibility that it may be damaged by a collision. However, when the shock absorber according to the present invention is used, a fitting member having an inclined groove on the side surface of the feed gear of the transmission gear is provided. Install an elastic member having an elastic protrusion fitted to the inclined groove of the fitting member on the outer circumferential surface of the rotating shaft so that the optical pickup actuator is smoothly and elastically contacted with the turntable assembly to prevent the optical pickup actuator and the turntable assembly from being damaged. It is a very useful design.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950030950U KR0126842Y1 (en) | 1995-10-30 | 1995-10-30 | An impact alleviation device of optical pick-up actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950030950U KR0126842Y1 (en) | 1995-10-30 | 1995-10-30 | An impact alleviation device of optical pick-up actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970019407U KR970019407U (en) | 1997-05-26 |
| KR0126842Y1 true KR0126842Y1 (en) | 1998-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019950030950U KR0126842Y1 (en) | 1995-10-30 | 1995-10-30 | An impact alleviation device of optical pick-up actuator |
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| Country | Link |
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| KR (1) | KR0126842Y1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100585077B1 (en) * | 1999-12-24 | 2006-05-30 | 삼성전자주식회사 | Deck assembly of disc player |
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1995
- 1995-10-30 KR KR2019950030950U patent/KR0126842Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
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| KR970019407U (en) | 1997-05-26 |
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