KR940008192Y1 - Pick up apparatus for multi-ld player - Google Patents
Pick up apparatus for multi-ld player Download PDFInfo
- Publication number
- KR940008192Y1 KR940008192Y1 KR92012778U KR920012778U KR940008192Y1 KR 940008192 Y1 KR940008192 Y1 KR 940008192Y1 KR 92012778 U KR92012778 U KR 92012778U KR 920012778 U KR920012778 U KR 920012778U KR 940008192 Y1 KR940008192 Y1 KR 940008192Y1
- Authority
- KR
- South Korea
- Prior art keywords
- pick
- pickup
- holder
- shaft
- operating
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/08—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records
- G11B17/12—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records with axial transfer to the turntable from a stack with a vertical axis
- G11B17/14—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from consecutive-access magazine of disc records with axial transfer to the turntable from a stack with a vertical axis by mechanism in rotating centre post, e.g. permitting the playing of both sides of a record
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/022—Positioning or locking of single discs
- G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
- G11B17/0288—Positioning or locking of single discs of discs rotating during transducing operation by means for moving the turntable or the clamper towards the disk
-
- 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
- G11B2220/23—Disc-shaped record carriers characterised in that the disc has a specific layer structure
- G11B2220/232—Double-sided discs, i.e. two recording layers accessed from opposite sides
Landscapes
- Moving Of Heads (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Abstract
내용 없음.No content.
Description
제1도는 종래의 레이저 플레이어 데크의 구성도.1 is a block diagram of a conventional laser player deck.
제2도는 종래의 레이저 플레이어 데크에서 디스크와 이동되는 픽업과의 수평 관계도.2 is a horizontal relation diagram between a disk and a pickup moved in a conventional laser player deck.
제3도는 본 고안 데크의 픽업 승강장치의 측면도.3 is a side view of the pickup lift device of the present invention deck.
제4도는 본 고안 데크의 픽업 승강장치의 평면도.4 is a plan view of the pickup lifting device of the deck of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
101 : 캐리어 102 : 픽업101: carrier 102: pickup
103 : 지지판 104 : 안내홈103: support plate 104: guide groove
105 : 지지축 106 : 삽입홈105: support shaft 106: insertion groove
107 : 홀더 108 : 축107 holder 108 axis
108' : 연결부재 109 : 작동구108 ': connecting member 109: operating port
110 : 나사축 111 : 원동기110: screw shaft 111: prime mover
112 : 웜 113 : 웜기어112: worm 113: worm gear
본 고안은 양면 재생용 멀티 레이저 플레이어 데크의 픽업 승강장치에 관한 것으로 특히 작동중에 디스크의 외주부분이 휨이나 면진동이 발생할때 픽업을 상하로 작동시켜 픽업 아답타 구동회로에 무리를 안주고 안정된 동작을 구현할 수 있도록 한 것이다.The present invention relates to a pick-up device of a multi-laser player deck for double-sided reproduction. In particular, when the outer peripheral portion of the disc is warped or surface vibrations occur during operation, the pick-up can be operated up and down so that the pick-up adapter drive circuit can be operated without difficulty. I would have to.
종래의 레이저 플레이어 데크는 제1도와 같이 모터(1)에 축설된 웜(2)에 결합되어 회동되는 경사캠(3)과 상기 경사캠(3)에 의하여 작동될때 축(4)을 중심으로 하여 일단이 상하 작동하는 작동판(5)과 상기 작동판(5)위에 형성된 안내축(6)과 상기 안내축(6)을 따라 이동하는 픽업(7)으로 구성되었다.Conventional laser player deck is coupled to the worm (2) arranged in the motor (1) as shown in FIG. 1 when the inclined cam (3) is rotated and operated by the inclined cam (3) centered around the shaft (4) It consists of an operating plate 5 having one end operated up and down, a guide shaft 6 formed on the operating plate 5, and a pickup 7 moving along the guide shaft 6.
그리고 8은 턴테이블이고 9는 디스크이며 10은 대물렌즈이다.8 is the turntable, 9 is the disk and 10 is the objective.
이와같이 구성된 레이저 플레이어 데크가 작동할때 디스크의 처짐이나 진동에 따라 디스크(9)와 픽업(7)의 간격을 일정하게 유지시켜 주기 위하여 모터(1)를 작동시킨다.When the laser player deck configured as described above operates, the motor 1 is operated to keep the distance between the disc 9 and the pickup 7 constant according to the deflection or vibration of the disc.
따라서 모터(1)에 축설된 웜(2)이 회동하면서 경사캠(3)을 회동시켜 주기 때문에 축(4)을 중심으로 하여 작동판(5)이 상하 작동한다.Therefore, since the inclined cam 3 rotates while the worm 2 built in the motor 1 rotates, the operating plate 5 operates up and down about the shaft 4.
이때 작동판(5)위에 형성된 안내축(6)을 따라 이동하는 픽업(7)의 대물렌즈(10)과 디스크(9)와의 간격을 조절하여 주도록 하였다.At this time, the distance between the objective lens 10 and the disk 9 of the pickup 7 moving along the guide shaft 6 formed on the operating plate 5 was adjusted.
그러나 제2도와 같이 턴테이블(8)에 올려져 있는 디스크(9)는 외주부분으로 갈수록 휨상태가 심하여 진다.However, as shown in FIG. 2, the disk 9 mounted on the turntable 8 becomes more severe in the outer peripheral portion.
따라서 픽업(7)이 디스크(9)의 외주부분쪽으로 이동하였을때는 픽업(7)에서 투사되는 레이저의 입사각이 수직이 되지 못한다.Therefore, when the pickup 7 is moved toward the outer circumferential portion of the disc 9, the incident angle of the laser projected from the pickup 7 is not perpendicular.
이때 수직입사를 위하여 픽업(7)을 기울여 주게 되는데 이것이 틸트서보(Tilt Servo)이다.At this time, the pickup 7 is tilted for vertical incidence, which is a tilt servo.
그러나 이동작으로 레이저의 수직입사는 가능하나 디스크(9)와 대물렌즈(10) 사이의 간격이 너무 가까워지므로 이를 위해서 픽업(7)에 오프셋트 전압을 걸어 주어 대물렌즈(10)를 밑으로 내려야 하는것 즉, 포커싱 서보의 양이 커지다 보면 회로적으로 무리가 따르는 문제가 발생하였다.However, the vertical incidence of the laser is possible due to the movement, but the distance between the disk 9 and the objective lens 10 becomes too close. For this purpose, an offset voltage is applied to the pickup 7 to lower the objective lens 10 downward. In other words, as the amount of focusing servo increases, there is a problem that the circuit is crowded.
본 고안은 이러한 점을 감안하여 고한한 것으로서 안내축을 따라 이동되는 캐리어에 픽업이 상하로 이동할수 있도록 구성함으로써 픽업 아답타 구동회로에 무리를 안주고 안정된 동작을 구현할 수 있도록 하였다.The present invention has been made in view of this point, so that the pickup can be moved up and down on the carrier moving along the guide shaft, so that the pick-up adapter driving circuit can be implemented without any burden on the pick-up adapter driving circuit.
본 고안 양면 재생용 멀티 레이저 플레이어 데크의 픽업 승강장치의 구성을 제3도 및 제4도에 의하여 상세히 설명한다.The configuration of the pickup lift apparatus of the multi-laser player deck for double-sided reproduction of the present invention will be described in detail with reference to FIGS. 3 and 4.
안내축을 따라 이동하는 캐리어(101)에 픽업(102)을 지지하는 지지부와 상기 지지부에 지지된 픽업(102)을 승강시켜 주도록한 승강부와 상기 승강부를 상하로 작동시켜 주는 상하작동부와 상기 상하작동부를 구동시켜주는 구동부로 구성하였다.A support for supporting the pick-up 102 to the carrier 101 moving along the guide shaft, a lift for allowing the pick-up 102 supported by the support to be lifted, and an up and down operating part for operating the lift up and down, and the up and down operation. It consists of a driving unit for driving the operating unit.
상기 지지부는 캐리어(101)에 형성된 지지판(103)에 형성된 안내홈(104)과 상기 안내홈(104)에 삽입되어 상하로 이동될 수 있도록한 지지축(105)을 픽업(102)의 양단에 형성하였다.The support portion has guide grooves 104 formed on the support plate 103 formed on the carrier 101 and support shafts 105 inserted into the guide grooves 104 so as to be moved up and down at both ends of the pickup 102. Formed.
상기 승강부는 픽업(102)에 형성된 지지축(105)의 삽입되는 삽입홈(106)과 상기 삽입홈(106)이 형성된 홀더(107)와 상기 홀더(107)가 축(108)을 중심으로 하여 회동할 수 있도록 형성하였다.The lifting unit has an insertion groove 106 into which the support shaft 105 formed in the pickup 102 is inserted, a holder 107 in which the insertion groove 106 is formed, and the holder 107 around the shaft 108. It was formed to be able to rotate.
상기 상하 작동부는 상기 홀더(107)와 연결부재(108)로 연결된 작동구(109)와 상기 작동구(109)는 나사 결합되어 있는 나사축(110)의 회동에 의하여 상하로 작동할 수 있도록 형성하였다.The up and down operating portion is formed to be operated up and down by the rotation of the screw shaft 110 is screwed to the operating port 109 and the operating port 109 connected to the holder 107 and the connecting member 108 It was.
도면중 미설명 부호 114는 대물렌즈이다.Reference numeral 114 in the drawing denotes an objective lens.
이상과 같이 구성된 본 고안의 작용효과를 제3도 및 제4도에 의하여 설명한다.Effects of the present invention configured as described above will be described with reference to FIGS. 3 and 4.
캐리어(101)가 안내축을 따라 이동을 하여 디스크의 외주연 부분에 위치하게 되었을때 디스크의 외주부분이 처짐에 따라 디스크와 픽업(102)의 대물렌즈(114)와의 거리를 조절하기 위하여 원동기(111)를 작동시킨다.When the carrier 101 moves along the guide shaft and is positioned at the outer peripheral portion of the disk, the prime mover 111 is used to adjust the distance between the disk and the objective lens 114 of the pickup 102 as the outer peripheral portion of the disk sags. ).
따라서 원동기(111)에 축설되어 있는 웜(112)이 회동하면서 나사축(110)에 축설되어 있는 웜기어(113)를 회동시킴으로 나사축(110)도 따라 회동한다.Therefore, as the worm 112 arranged on the prime mover 111 rotates, the screw shaft 110 also rotates by rotating the worm gear 113 built on the screw shaft 110.
이때 나사축(110)이 회동하게 되면 나사축(110)에 나사결합되어 있는 작동구(109)가 나사축(110)의 회전방향에 따라 상하로 작동된다.At this time, when the screw shaft 110 is rotated, the operating port 109 is screwed to the screw shaft 110 is operated up and down in accordance with the rotation direction of the screw shaft 110.
이와같이 작동구(109)가 작동하게 되면 작동구(109)에 연결부재(108')로 연결된 홀더(107)가 상하로 이동하게 된다.When the operation tool 109 is operated in this way, the holder 107 connected to the operation member 109 by the connecting member 108 'is moved up and down.
이때 홀더(107)는 축(108)을 중심으로 하여 상하로 작동됨과 더불어 홀더(107)의 선단에 형성된 삽입홈(106)에 삽입되어져 있는 지지축(105)을 상하로 이송시킨다.At this time, the holder 107 is operated up and down about the shaft 108 and transfers the support shaft 105 inserted into the insertion groove 106 formed at the tip of the holder 107 up and down.
이와같이 지지축(105)은 지지판(103)에 형성된 안내홈(104)을 따라서 상하로 작동되고 상기 지지축(105)의 결합되어져 있는 픽업(102)이 따라 상하로 이동하면서 디스크와 픽업(102)의 대물렌즈(114)와의 거리를 조절하여 주는 것이다.In this way, the support shaft 105 is operated up and down along the guide groove 104 formed in the support plate 103 and the disk and the pick-up 102 as the pick-up 102 coupled to the support shaft 105 moves up and down along it. To adjust the distance to the objective lens 114.
이와같이 원동기(111)의 회전방향에 따라 픽업(102)의 상하 작동을 하여 디스크와 대물렌즈의 거리를 조절해주는 것으로서 디스크 재생시 픽업이 외주부분에 왔을 경우 디스크의 처짐 정도에 맞추어 픽업을 다운시켜줌으로써 픽업 아답타의 구동회로에 무리를 안주고 안정된 동작을 구현할 수 있는 고안이다.As such, the distance between the disc and the objective lens is adjusted by operating the pick-up 102 in accordance with the rotational direction of the prime mover 111. It is designed to realize stable operation without straining the driving circuit of the pickup adapter.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR92012778U KR940008192Y1 (en) | 1992-07-11 | 1992-07-11 | Pick up apparatus for multi-ld player |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR92012778U KR940008192Y1 (en) | 1992-07-11 | 1992-07-11 | Pick up apparatus for multi-ld player |
Publications (2)
Publication Number | Publication Date |
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KR940004178U KR940004178U (en) | 1994-02-24 |
KR940008192Y1 true KR940008192Y1 (en) | 1994-11-29 |
Family
ID=19336517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR92012778U KR940008192Y1 (en) | 1992-07-11 | 1992-07-11 | Pick up apparatus for multi-ld player |
Country Status (1)
Country | Link |
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KR (1) | KR940008192Y1 (en) |
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1992
- 1992-07-11 KR KR92012778U patent/KR940008192Y1/en not_active IP Right Cessation
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Publication number | Publication date |
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KR940004178U (en) | 1994-02-24 |
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