KR0124615B1 - Tilt adjustment device of optical disk player - Google Patents
Tilt adjustment device of optical disk playerInfo
- Publication number
- KR0124615B1 KR0124615B1 KR1019940034712A KR19940034712A KR0124615B1 KR 0124615 B1 KR0124615 B1 KR 0124615B1 KR 1019940034712 A KR1019940034712 A KR 1019940034712A KR 19940034712 A KR19940034712 A KR 19940034712A KR 0124615 B1 KR0124615 B1 KR 0124615B1
- Authority
- KR
- South Korea
- Prior art keywords
- electric field
- pickup
- deck base
- tilt adjustment
- rotating plate
- Prior art date
Links
Classifications
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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
- G11B7/08582—Sled-type positioners
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- 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
- G11B17/0284—Positioning or locking of single discs of discs rotating during transducing operation by clampers
- G11B17/0285—Positioning or locking of single discs of discs rotating during transducing operation by clampers mounted on a bridge
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- 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
- G11B17/04—Feeding or guiding single record carrier to or from transducer unit
- G11B17/05—Feeding or guiding single record carrier to or from transducer unit specially adapted for discs not contained within cartridges
- G11B17/053—Indirect insertion, i.e. with external loading means
- G11B17/056—Indirect insertion, i.e. with external loading means with sliding loading means
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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
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
- G11B7/0956—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
Description
제 1 도는 종래 틸트조정장치를 나타낸 평면도.1 is a plan view showing a conventional tilt adjustment device.
제 2 도는 종래 틸트조정장치를 나타낸 정면도.2 is a front view showing a conventional tilt adjustment device.
제 3 도는 본 발명 틸트조정장치를 나타낸 평면도.3 is a plan view showing the tilt adjustment device of the present invention.
제 4 도는 본 발명 틸트조정장치를 나타낸 정면도.4 is a front view showing the tilt adjustment device of the present invention.
제 5 도는 본 발명 틸트조정장치를 나타낸 측면도.5 is a side view showing the tilt adjustment device of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 데크베이스 2 : 안내레일1: Deck Base 2: Guide Rail
3 : 픽업 6 : 센서3: pickup 6: sensor
7 : 회동판 8 : 턴테이블7: rotating board 8: turntable
9 : 스핀들모터 10 : 압전소자9 spindle motor 10 piezoelectric element
11 : 스크류 12 : 스프링11: screw 12: spring
본 발명은 광 디스크 플레이어의 틸트조정장치에 관한 것으로서, 더욱 상세하게는 구조를 간소화하여 제작비를 절감함과 함께 동작이 정확하게 이루어지도록 한 것이다.The present invention relates to a tilt adjustment apparatus for an optical disc player, and more particularly, to simplify the structure and to reduce the production cost and to perform the operation accurately.
일반적으로 광 디스크 플레이어는 광 디스크(이하 디스크라 한다)를 기록매체로 하여 상기 디스크에 기록된 신호를 픽업에 의해 읽어 재생하는 기기로서, 재생시 디스크와 픽업의 거리를 항상 적정거리로 유지시켜 깨끗한 음질이 제공되도록 하기 위한 틸트(Tilt) 조정장치를 갖추고 있다.In general, an optical disc player is a device that reads and reproduces a signal recorded on the disc by means of an optical disc (hereinafter referred to as a disc) as a recording medium. Tilt adjustments are made to ensure sound quality.
상기한 틸트조정장치의 종래 구조는 스핀들모터(22)의 구동에 따라 회전가능하도록 턴테이블(23)이 설치된 데크베이스(21)에 힌지보스(24)가 일체 형성되어 있고, 상기 힌지보스에는 한쌍의 안내레일(25)을 따라 슬라이딩 가능하도록 픽업(26)이 설치된 픽업플레이트(27)가 힌지결합되어 있으며, 상기 픽업(26)의 일측에는 재생시 턴테이블(22)의 회전에 따라 디스크가 함께 회전할때 회전되는 디스크와 픽업(27)의 거리를 센싱하도록 센서(28)가 센서브라켓(29)에 의해 부착되어 있고, 상기 데크베이스(21)에는 틸트조정을 위한 구동력을 발생시키도록 틸트조정용 모터(30)가 부착되어 있으며, 상기 틸트조정용 모터에는 틸트조정용 모터의 구동력을 받아 회전하도록 틸트조정용 구동기어(31)가 축결합되어 있으며, 상기 데크베이스(21)에는 틸트조정용 구동기어(31)의 회전력을 받아 회전하도록 나사봉(32)이 일체형성된 틸트조정용 종동기어(33)가 힌지 결합되어 있고, 상기 픽업플레이트(27)의 일측에는 틸트조정용 종동기어(33)에 일체형성된 나사봉(32)과 나사결합되도록 돌출편(34)이 형성되어 있다.In the conventional structure of the tilt adjusting device, a hinge boss 24 is integrally formed on the deck base 21 on which the turntable 23 is rotatable in accordance with the driving of the spindle motor 22, and a pair of hinge bosses are formed on the hinge boss. A pickup plate 27 having a pickup 26 installed to be slid along the guide rail 25 is hinged, and one side of the pickup 26 rotates along with the rotation of the turntable 22 during playback. The sensor 28 is attached by the sensor bracket 29 so as to sense the distance between the disk and the pickup 27 that is rotated, and the deck base 21 has a tilt adjustment motor to generate a driving force for tilt adjustment. 30) is attached, the tilt adjustment motor is coupled to the tilt adjustment drive gear 31 so as to rotate under the driving force of the tilt adjustment motor, the deck base 21 of the tilt adjustment drive gear 31 Tilt adjustment driven gear 33 having a screw rod 32 integrally formed so as to rotate under rotational force is hinged, and one side of the pickup plate 27 has a screw rod 32 integrally formed with a tilt adjustment driven gear 33. Protruding piece 34 is formed to be screwed with.
따라서, 스핀들모터(22)에 설치된 턴테이블(23)에 디스크 로딩수단(도시는 생략함)을 이용해 재생하고자 하는 디스크를 안착시킨 상태에서 재생버튼을 선택하면 상기 스핀들모터(22)가 구동하므로 턴테이블(23)과 디스크가 함께 회전한다.Accordingly, when the play button is selected while the disc to be played is seated on the turntable 23 installed on the spindle motor 22 by using a disk loading means (not shown), the spindle motor 22 is driven to turn the table. 23) and the disk rotate together.
이와 같이 하여 턴테이블(23)과 디스크가 함께 회전할때 슬라이드모터(35)도 구동하므로 픽업(26)이 상기 슬라이드모터(35)의 구동력을 구동기어(36)와 종동기어(37)을 통해 전달받아 픽업플레이트(27)의 안내레일(25)에 안내되면서 회전되는 디스크와 내측에서 외측으로 이동하는데 이때 픽업(26)을 통해 레이져 빔이 조사되어 디스크의 트랙에 기록된 신호를 읽어들이므로 재생이 행하여진다.In this way, when the turntable 23 and the disc rotate together, the slide motor 35 is also driven, so that the pickup 26 transmits the driving force of the slide motor 35 through the drive gear 36 and the driven gear 37. It is guided to the guide rail 25 of the pickup plate 27 and moves from the inner side to the outer side of the rotating disc. At this time, the laser beam is irradiated through the pickup 26 to read the signal recorded on the track of the disc. Is done.
상기의 작용에 의해 재생이 행하여질때 디스크의 자체적인 휨등에 의해 상기 디스크와 픽업(26)의 거리가 적정거리를 계속적으로 유지하지 못한다면 픽업(26)에서 조사되는 빔이 디스크의 트랙에 기록된 신호를 정확하게 읽어내지 못하므로 깨끗한 음질을 제공받을 수 없어 재생중에는 회전하는 디스크와 이동하는 픽업(26)의 거리가 계속해서 적정거리를 유지하고 있다.When reproducing is performed by the above action, if the distance between the disc and the pickup 26 does not keep the proper distance continuously due to the disc's own bending or the like, the beam irradiated from the pickup 26 is recorded on the track of the disc. Since the sound quality cannot be read accurately, clean sound quality cannot be provided, and the distance between the rotating disk and the pick-up 26 moving is maintained at a proper distance during playback.
그럼 여기서 재생중에 디스크와 픽업(26)의 거리를 적정거리로 유지시키는 과정을 설명하면 후술하는 바와 같다.The process of maintaining the distance between the disc and the pickup 26 at an appropriate distance during playback will be described later.
픽업(26)이 이동하면서 회전되는 디스크의 트랙에 기록된 신호를 읽어낼때 상기 픽업의 일측으로 센서브라켓(29)에 의해 부착되어 있는 센서(28)가 디스크와 픽업(26)의 거리를 센싱하여 이 센싱값을 제어부로 보내고 상기 제어부에서는 센서(28)가 센싱한 값과 기설정된 값을 비교한 다음 센싱값이 설정값 보다 차이가 날 경우 그 차이값에 비례된 만큼 데크베이스(21)에 부착된 틸트조정용 모터(30)의 구동을 제어하므로 상기 틸트조정용 모터가 정,역구동하고 이 구동력은 상기 틸트조정용 모터에 축결합된 틸트조정용 구동기어(31)를 통해 데크베이스(21)에 힌지결합된 틸트조정용 종동기어(33)로 전달되므로 상기 틸트조정용 종동기어가 정,역방향으로 회전한다.When the pickup 26 reads the signal recorded in the track of the rotating disk, the sensor 28 attached by the sensor bracket 29 senses the distance between the disk and the pickup 26 to one side of the pickup. This sensing value is sent to the control unit, and the control unit compares the value sensed by the sensor 28 with a preset value, and attaches it to the deck base 21 in proportion to the difference value when the sensing value is different from the set value. Since the tilt adjustment motor 30 is driven forward and reverse, the driving force is hinged to the deck base 21 through the tilt adjustment drive gear 31 axially coupled to the tilt adjustment motor. Since the tilt adjustment driven gear 33 is transmitted to the driven tilt gear 33, the tilt adjustment driven gear rotates in the forward and reverse directions.
이와 같이 하여 틸트조정용 종동기어(33)가 정,역방향으로 회전하면 상기 틸트조정용 종동기어에는 나사봉(32)이 일체 형성되어 있고 데크베이스(27)의 힌지보스(24)에 힌지결합된 픽업플레이트(27)에는 상기 나사봉(32)에 끼워진 상태로 돌출편(34)이 형성되어 있으므로 결과적으로 돌출편은 상부로 이동력을 부여받거나 하부로 이동력을 부여받고 이에 따라 픽업플레이트(27)가 힌지점을 중심으로 도면상 시계방향으로 회동하거나 반시계방향으로 회동하므로 상기 픽업플레이트(27)에 설치된 픽업(26)의 위치가 변하면서 재생시에 디스크와 픽업(26)의 거리를 항상 적정거리로 유지시켜 준다.In this way, when the tilt adjustment driven gear 33 rotates in the forward and reverse directions, the tilt adjustment driven gear has a screw rod 32 integrally formed therein, and a pickup plate hinged to the hinge boss 24 of the deck base 27. Since the protruding piece 34 is formed in the state of being fitted to the screw rod 32, the protruding piece is given a moving force to the upper side or a moving force to the lower side, and thus the pickup plate 27 is Rotate clockwise or counterclockwise in the drawing about the hinge point so that the position of the pickup 26 installed in the pickup plate 27 is changed so that the distance between the disc and the pickup 26 is always adjusted to a proper distance during playback. Keep it.
즉, 센서(28)가 센싱한 값을 제어부가 받아 상기 센싱값과 설정값을 비교하였을 때 센싱값이 설정값 보다 크다면 디스크와 픽업(26)의 거리는 적정거리 보다 먼 상태이므로 틸트조정용 모터(30)가 정구동하고 이에 따라 픽업플레이트(27)가 힌지축을 중심으로 제 2도의 반시계방향으로 회동하므로 디스크와 상기 픽업플레이트(27)의 안내레일(25)에 설치된 픽업(26)의 거리는 가까워짐을 알 수 있고 센서(28)가 센싱한 값을 제어부가 받아 상기 센싱값과 설정값을 비교하였을때 센싱값이 설정값 보다 적다면 디스크와 픽업(26)의 거리는 적정거리 보다 가까운 상태이므로 틸트조정용 모터(30)가 역구동하고 이에 따라 픽업플레이트(27)가 힌지축을 중심으로 제 2도의 시계방향으로 회동하므로 디스크와 상기 픽업플레이트(27)에 설치된 픽업(26)의 거리는 멀어짐을 알 수 있다.That is, when the sensor receives the value sensed by the sensor 28 and compares the sensing value with the set value, if the sensing value is larger than the set value, the distance between the disc and the pickup 26 is farther than an appropriate distance, and thus the tilt adjusting motor ( 30 is driven forward and thus the pickup plate 27 is rotated counterclockwise in FIG. 2 around the hinge axis, so that the distance between the disk and the pickup 26 provided on the guide rail 25 of the pickup plate 27 is closer. If the sensing value is smaller than the set value when the control unit receives the value sensed by the sensor 28 and compares the sensing value with the set value, the distance between the disc and the pickup 26 is closer than the proper distance. It is understood that the distance between the disk and the pick-up 26 installed in the pick-up plate 27 is increased because the 30 is driven back and the pick-up plate 27 rotates clockwise in FIG. 2 about the hinge axis. Can be.
그러나 종래 이와같은 장치는 픽업이 설치된 픽업플레이트를 회동하여 줌에 따라 틸트가 조정되도록 되어 있으므로 상기 픽업플레이트를 회동시켜주기 위한 구조가 반드시 필요하여 부품수의 증가에 따른 제작비 상승이 초래되는 문제점이 있음은 물론 상기 부품수의 증가에 의해 동작이 신소하고 정확하게 이루어지지 못하므로 깨끗한 음질이 제공되지 못하던 문제점도 있었다.However, in the related art, since the tilt is adjusted according to the zoom by rotating the pickup plate on which the pickup is installed, a structure for rotating the pickup plate is necessary, resulting in an increase in manufacturing cost due to an increase in the number of parts. Of course, there is a problem that the operation is not made by the increase in the number of parts, so that the clean sound quality is not provided accurately.
본 발명은 상기 문제점을 해결하기 위하여 안출한 것으로서, 압전소자를 이용하여 디스크의 높낮이를 조절함에 따라 틸트가 조정되도록 구조를 변경하여 부품수를 줄임에 따른 제작비의 절감과 함께 신속하고 정확한 틸트조정이 가능하도록 하는데 그 목적이 있다.The present invention has been made to solve the above problems, by changing the structure to adjust the tilt of the disk using a piezoelectric element to change the structure to reduce the manufacturing cost according to the reduction of the number of parts fast and accurate tilt adjustment Its purpose is to make it possible.
상기 목적을 달성하기 위한 본 발명 형태에 따르면, 데크베이스에 안내레일을 따라 슬라이딩 가능하도록 설치된 픽업과, 상기 픽업에 부착되어 재생시 디스크와 픽업의 거리를 센싱하는 센서와, 상기 센서에서 센싱된 값과 기 설정된 값의 차를 제어부를 통해 받아 전계를 발생시키는 전계발생부와, 상기 데크베이스에 중심선상을 기점으로 회동가능하게 설치되어 턴테이블이 축결합된 스핀들모터를 지지하는 회동판과, 상기 회동판의 회동기점과 직교되는 중심선상에 위치되도록 데크베이스와 회동판 사이의 양측에 설치되어 전계발생부에서 발생된 전계를 받아 수직으로 팽창되는 압전소자로 구성하여서 된 본 발명 광 디스크 플레이어의 틸트조정장치가 제공된다.According to an aspect of the present invention for achieving the above object, a pickup provided to the deck base to slide along a guide rail, a sensor attached to the pickup for sensing the distance between the disk and the pickup during playback, and the value sensed by the sensor An electric field generating unit for generating an electric field by receiving a difference between a predetermined value and a rotating plate which is rotatably installed on the deck base from the center line, and supports a spindle motor having a turntable axially coupled thereto; Tilt adjustment of the optical disk player of the present invention, which is composed of a piezoelectric element which is installed on both sides between the deck base and the rotating plate so as to be located on a center line orthogonal to the rotational starting point of the copper plate and is expanded vertically by receiving the electric field generated by the electric field generating unit An apparatus is provided.
이하 본 발명은 일실시예로 도시한 첨부된 도면 제 3 도 내지 제 5 도를 참고로 하여 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to FIGS. 3 to 5 of the accompanying drawings.
첨부도면 제 3 도는 본 발명 틸트조정장치를 나타낸 평면도이고, 제 4 도는 본 발명 틸트조정장치를 나타낸 정면도이며 제 5도는 본 발명 틸트조정장치를 나타낸 측면도로서, 본 발명은 데크베이스(1)에 한쌍의 안내레일(2)을 따라 슬라이딩 가능하도록 픽업(3)을 설치하고, 상기 픽업의 일측에는 재생시 디스크와 픽업(3)의 거리를 센싱하도록 센서브라켓(5)에 의해 센서(6)를 부착하며, 상기 데크베이스(1)에는 중심선상을 기점으로 회동가능하게 회동판(7)을 설치하고, 상기 회동판에는 턴테이블(8)이 축결합된 스핀들모터(9)를 부착하며, 상기 데크베이스(1)와 회동판(7) 사이의 양측에는 전계발생부에서 발생된 전계를 받아 수직으로 팽창되도록 압전소자(10)를 설치한다.FIG. 3 is a plan view showing the tilt adjusting device of the present invention, FIG. 4 is a front view showing the tilt adjusting device of the present invention, and FIG. 5 is a side view showing the tilt adjusting device of the present invention. The pickup 3 is installed to be slidable along the guide rail 2 of the sensor, and the sensor 6 is attached to one side of the pickup by the sensor bracket 5 so as to sense the distance between the disk and the pickup 3 during playback. The deck base 1 is provided with a pivot plate 7 rotatably starting from a center line, and the spindle base 9 has a spindle motor 9 coupled with a turntable 8 to the deck base. Piezoelectric elements 10 are installed on both sides between (1) and the rotating plate 7 so as to receive the electric field generated by the electric field generator and expand vertically.
또한 데크베이스(1)에는 머리가 회동판(7)의 상부로 노출되도록 스크류(11)를 고정하고 상기 스크류에는 스크류의 머리와 회동판(7) 사이에 위치하도록 스프링(12)을 끼워 전계발생부에서 발생된 전계가 팽창되어 있던 압전소자(10)로 전달되지 않을때 상기 압전소자가 스프링(12)의 복원력을 받아 신속하게 원상태로 되돌아 가도록 한다.In addition, the deck base (1) is fixed to the screw 11 so that the head is exposed to the upper portion of the rotating plate (7), the screw is fitted with a spring 12 so as to be located between the head of the screw and the rotating plate (7) When the electric field generated in the negative portion is not transmitted to the expanded piezoelectric element 10, the piezoelectric element is quickly returned to its original state by receiving the restoring force of the spring 12.
이와 같이 구성된 본 발명의 작용, 효과를 설명하면 다음과 같다.Referring to the operation and effects of the present invention configured as described above are as follows.
재생시 회동판(7)에 지지된 스핀들모터(9)의 구동에 따라 턴테이블(8)과 함께 디스크가 회전할때 픽업(3)이 슬라이드모터(13)의 구동력을 구동기어(14)와 종동기어(15)를 통해 전달받아 한쌍의 안내레일(2)을 따라 수평이동하면서 상기 회전되는 디스크의 트랙에 기록된 신호를 읽어내는데, 이때 픽업(3)의 일측으로 센서브라켓(10)에 의해 부착되어 있는 센서(9)가 디스크와 픽업(3)의 거리를 센싱하여 이 센싱값을 제어부로 보내고 상기 제어부에서는 센서(6)가 센싱한 값과 기설정된 값을 비교한 다음 센싱값이 설정값 보다 차이가 날 경우 전계발생부에서 전계를 발생시킨다.When the disc is rotated together with the turntable 8 as the spindle motor 9 is supported by the rotary plate 7 during regeneration, the pickup 3 drives the driving force of the slide motor 13 with the drive gear 14. Received through the gear 15 and reads the signal recorded on the track of the rotating disk while moving horizontally along the pair of guide rails (2), this time attached to the side of the pickup (3) by the sensor bracket (10) The sensor 9 senses the distance between the disk and the pickup 3 and sends this sensing value to the control unit. The controller compares the value sensed by the sensor 6 with a preset value, and then the sensing value is greater than the set value. If there is a difference, the field generator generates an electric field.
이와 같이 하여 전계발생부에서 발생된 전계는 데크베이스(1)와 회동판(7) 사이의 양측에 설치된 압전소자(10) 중 어느 하나의 압전소자로 전달되는데, 이때 전계를 전달받은 압전소자(10)는 스크류(11)에 끼워진 스프링(12)의 탄력을 받으면서 수직방향으로 팽창되므로 상기 회동판(7)이 힌지축을 중심으로 하여 도면상 시계방향으로 회동하거나 반시계방향으로 회동하고 이에 따라 상기 회동판(7)에 부착된 스핀들모터(9)와 상기 스핀들모터에 축결합된 턴테이블(8)이 기울어지므로 결과적으로 디스크가 기울어지면서 디스크와 픽업(6)의 거리를 항상 적정거리로 유지시켜 준다.In this way, the electric field generated by the electric field generating unit is transmitted to any one of the piezoelectric elements 10 of the piezoelectric elements 10 installed on both sides between the deck base 1 and the rotating plate 7, wherein the piezoelectric element ( 10) is expanded in the vertical direction while receiving the elasticity of the spring 12 fitted to the screw 11, so that the rotating plate 7 rotates clockwise or counterclockwise in the drawing about the hinge axis and thus The spindle motor 9 attached to the rotating plate 7 and the turntable 8 axially coupled to the spindle motor are inclined, and as a result, the disk is inclined so that the distance between the disk and the pickup 6 is always maintained at an appropriate distance. .
즉, 센서(6)가 센싱한 값을 제어부가 받아 상기 센신값과 설정값을 비교하였을때 센싱값이 설정값 보다 크다면 디스크와 픽업(6)의 거리는 적정거리 보다 먼 상태이므로 전계발생부에서 발생된 전계는 데크베이스(1)와 회동판(7) 사이의 양측에 설치되어 있는 압전소자(10) 중 제 4 도의 오른쪽 압전소자로 전달되고 이에 따라 상기 전계를 받은 압전소자가 팽창되므로 디스크와 픽업(6)의 거리는 가까워짐을 알 수 있고 센서(6)가 센싱한 값을 제어부가 받아 상기 센싱값과 설정값을 비교하였을 때 센싱값이 설정값 보다 작다면 디스크와 픽업(6)의 거리는 적정거리 보다 가까운 상태이므로 전계발생부에서 발생된 전계는 데크베이스(1)와 회동판(7) 사이의 양측에 설치되어 있는 압전소자(10) 중 제 4 도의 왼쪽 압전소자로 전달되고 이에 따라 상기 전계를 받은 압전소자가 팽창되므로 디스크와 픽업(6)의 거리는 멀어짐을 알 수 있다.That is, when the sensor receives the value sensed by the sensor 6 and compares the sensed value with the set value, if the sensed value is larger than the set value, the distance between the disk and the pickup 6 is farther than the proper distance. The generated electric field is transmitted to the right piezoelectric element of FIG. 4 of the piezoelectric elements 10 installed on both sides between the deck base 1 and the rotating plate 7, and thus the piezoelectric element receiving the electric field is expanded so that the disk and It can be seen that the distance of the pickup 6 is close, and when the sensor receives the value sensed by the sensor 6 and compares the sensing value with the setting value, if the sensing value is smaller than the setting value, the distance between the disk and the pickup 6 is appropriate. Since the field is closer than the distance, the electric field generated by the electric field generating unit is transmitted to the left piezoelectric element of FIG. 4 among the piezoelectric elements 10 installed on both sides between the deck base 1 and the rotating plate 7 and thus the electric field. Received As the piezoelectric element is expanded, it can be seen that the distance between the disk and the pickup 6 is farther away.
한편 압전소자(10)에 전계가 전달된 상태에서 상기 압전소자가 팽창되어 있다가 전계의 전달이 중단되면 팽창되어 있던 압전소자는 스크류(11)에 끼워져 상기 스크류의 머리와 회동판(7) 사이에 위치된 스프링(12)의 복원력을 받아 신속히 원상태로 되돌아간다.On the other hand, when the piezoelectric element is expanded while the electric field is transmitted to the piezoelectric element 10, and the transmission of the electric field is stopped, the expanded piezoelectric element is fitted to the screw 11 and is disposed between the head of the screw and the rotating plate 7. Receives the restoring force of the spring 12 located in the and quickly returns to the original state.
그러므로 본 발명은 종래에 비해 구조적으로 간단하므로 부품의 최소화에 따라 제작비용이 절감되는 효과가 있음은 물론 동력전달이 신속하고 정확하게 이루어짐에 따라 깨끗한 음질이 제공되는 효과도 있다.Therefore, since the present invention is structurally simple compared to the prior art, as well as the production cost is reduced according to the minimization of parts, as well as the power transmission is made quickly and accurately, there is an effect that a clean sound quality is provided.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940034712A KR0124615B1 (en) | 1994-12-16 | 1994-12-16 | Tilt adjustment device of optical disk player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940034712A KR0124615B1 (en) | 1994-12-16 | 1994-12-16 | Tilt adjustment device of optical disk player |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR960025408A KR960025408A (en) | 1996-07-20 |
| KR0124615B1 true KR0124615B1 (en) | 1997-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019940034712A KR0124615B1 (en) | 1994-12-16 | 1994-12-16 | Tilt adjustment device of optical disk player |
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| KR (1) | KR0124615B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100400640B1 (en) * | 2001-01-19 | 2003-10-10 | 박영필 | Stack-Type Piezoelectric Actuator For Optical Pick-up Device |
-
1994
- 1994-12-16 KR KR1019940034712A patent/KR0124615B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100400640B1 (en) * | 2001-01-19 | 2003-10-10 | 박영필 | Stack-Type Piezoelectric Actuator For Optical Pick-up Device |
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| KR960025408A (en) | 1996-07-20 |
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