KR100261093B1 - Apparatus for transferring optical pick-up - Google Patents

Apparatus for transferring optical pick-up Download PDF

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Publication number
KR100261093B1
KR100261093B1 KR1019970065044A KR19970065044A KR100261093B1 KR 100261093 B1 KR100261093 B1 KR 100261093B1 KR 1019970065044 A KR1019970065044 A KR 1019970065044A KR 19970065044 A KR19970065044 A KR 19970065044A KR 100261093 B1 KR100261093 B1 KR 100261093B1
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KR
South Korea
Prior art keywords
pickup
lead screw
lead
driven plate
coupling
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KR1019970065044A
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Korean (ko)
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KR19990046888A (en
Inventor
정원선
윤재현
김현수
Original Assignee
윤종용
삼성전자주식회사
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Priority to KR1019970065044A priority Critical patent/KR100261093B1/en
Publication of KR19990046888A publication Critical patent/KR19990046888A/en
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Publication of KR100261093B1 publication Critical patent/KR100261093B1/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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/02—Arrangements of heads
    • G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
    • G11B3/34—Driving or guiding during transducing operation
    • G11B3/36—Automatic-feed mechanisms producing progressive transducing traverse across record carriers otherwise than by grooves, e.g. by lead-screw
    • 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

Abstract

PURPOSE: A device for transferring an optical pickup is provided to make lead bars of a driven plate finely rotative on the basis of a coupling hole to compensate a deviation, when a lead screw slopes to a coupling member fixed on a pickup base, so as to make lead grooves and the lead bars be correctly in gear with each other. CONSTITUTION: A pickup guide includes a driven plate(10) contacted with a lead screw and a coupling member(20) installed on a pickup base. The driven plate(10) has lead bars(13) which are in gear with by being inserted into lead grooves of the lead screw. A coupling projector is formed on a surface opposite to a surface where the lead bars(13) are formed. Hooking parts(15) are formed on both ends of the driven plate(10), and the coupling parts(15) are inserted into holders(22) of the coupling member(20). The coupling member(20) has an installing plate(21) installed on the pickup base, the holders(22) coupled with the driven plate(10), and an elastic part(23) formed on the holders(22). The installing plate(21) forms settling grooves(24) to be coupled with the pickup base. The holders(22) are formed to be vertical to the installing plate(21). Hooking ends(25) where the hooking parts(15) of the driven plate(10) are inserted are formed in the holders(22). The elastic part(23) is extended to the holders(22) to elastically pressurize the driven plate(10) coupled with the holders(22) toward the lead screw. A coupling hole(26) inserting the coupling projector thereinto is formed in the elastic part(23).

Description

광픽업 이송장치Optical Pickup Transfer Device

본 발명은 광픽업을 디스크의 반경 방향으로 이송시키는 광픽업 이송장치에 관한 것으로서, 상세하게는 가이드레일과 픽업베이스의 결합 구조가 개선된 광픽업 이송장치에 관한 것이다.The present invention relates to an optical pickup transfer apparatus for transferring an optical pickup in a radial direction of a disc, and more particularly, to an optical pickup transfer apparatus having an improved coupling structure between a guide rail and a pickup base.

일반적으로 광픽업은 픽업베이스에 탑재되어 디스크의 반경 방향으로 이송되면서, 디스크의 기록면에 광을 조사하고, 반사된 광을 수광하여 정보의 기록/재생을 수행한다. 이를 위하여 광픽업 이송장치는 상기한 광픽업이 바른 트랙 위치를 추종하도록 정밀한 제어가 요구된다.In general, the optical pickup is mounted on the pickup base and transported in the radial direction of the disc to irradiate light onto the recording surface of the disc and to receive the reflected light to record / reproduce information. To this end, the optical pickup transport apparatus requires precise control so that the optical pickup follows the correct track position.

도 1은 종래 광픽업 이송장치를 개략적으로 나타낸 평면도이다. 도시된 바와 같이, 광픽업 이송장치는 데크(1) 상에 설치되어 광픽업(2)을 디스크(미도시)의 반경 방향(A방향)으로 직선 이송시킨다. 이를 위하여, 데크(1) 상에는 한 쌍의 가이드레일(3)이 설치되고, 가이드레일(3)과 평행하게 리드스크류(4)가 설치된다. 가이드레일(3) 상에 슬라이딩 가능하게 픽업베이스(5)가 설치된다. 픽업가이드(6)는 픽업베이스(5)를 리드스크류(4)에 결합시킨다. 리드스크류(4)는 구동원(7)으로부터 회전력을 얻어 회전하고, 리드스크류(4)의 회전에 따라 픽업베이스(5)를 디스크의 반경 방향으로 왕복 이송시키게 된다.1 is a plan view schematically showing a conventional optical pickup transport apparatus. As shown, the optical pickup transport apparatus is installed on the deck 1 to linearly transport the optical pickup 2 in the radial direction (A direction) of the disk (not shown). To this end, a pair of guide rails 3 are installed on the deck 1, and lead screws 4 are installed in parallel with the guide rails 3. The pickup base 5 is slidably mounted on the guide rail 3. The pickup guide 6 couples the pickup base 5 to the lead screw 4. The lead screw 4 rotates by obtaining a rotational force from the drive source 7, and reciprocally transfers the pickup base 5 in the radial direction of the disk in accordance with the rotation of the lead screw 4.

상술한 픽업가이드(6)는 도 2에 도시된 바와 같이, 일체형으로 형성된 것으로 픽업베이스(5)에 설치되는 설치부(6a)와, 리드스크류(4)의 리드(4a)와 맞물림되도록 리드바(9)가 형성된 피동부(6b)를 포함한다.As shown in FIG. 2, the pickup guide 6 is formed integrally with the lead bar to be engaged with the mounting portion 6a installed on the pickup base 5 and the lead 4a of the lead screw 4. It includes the driven part 6b in which (9) was formed.

이와 같이 구성된 종래 광픽업 이송장치는 한 쌍의 가이드레일(3)이 상호 평행하지 않고 기울어지거나, 리드스크류(4)가 기울어지는 경우, 리드(4a)와 리드바(9) 사이의 맞물림이 어긋날 수 있는 문제점이 있다.In the conventional optical pickup transfer apparatus configured as described above, when the pair of guide rails 3 are inclined without being parallel to each other or the lead screw 4 is inclined, the engagement between the leads 4a and the lead bars 9 is misaligned. There is a problem that can be.

본 발명은 상술한 바와 같은 문제점을 해결하기 위해 안출된 것으로, 리드스크류의 리드와 픽업가이드의 안내부가 맞물리는 각이 어긋나더라도 이를 보정할 수 있는 광픽업 이송장치를 제공하는데 목적이 있다.The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an optical pickup transport apparatus capable of correcting even if an angle between a lead of a lead screw and a guide of a pickup guide is shifted.

도 1은 종래 광픽업 이송장치를 개략적으로 나타낸 평면도.1 is a plan view schematically showing a conventional optical pickup transport apparatus.

도 2는 도 1의 픽업가이드를 나타내는 사시도.Figure 2 is a perspective view of the pickup guide of Figure 1;

도 3은 본 발명의 실시예에 따른 광픽업 이송장치를 개략적으로 나타낸 평면도.3 is a plan view schematically showing the optical pickup transport apparatus according to an embodiment of the present invention.

도 4는 도 3의 픽업가이드를 개략적으로 나타내는 분리 사시도.4 is an exploded perspective view schematically illustrating the pickup guide of FIG. 3.

도 5는 도 3의 측면도.5 is a side view of FIG. 3;

도 6은 도 3의 정면도.6 is a front view of FIG. 3;

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1...데크 2...광픽업 3...가이드레일1 ... deck 2 ... optical pickup 3 ... guide rail

4...리드스크류 5...픽업베이스 6...픽업가이드4 ... leadscrew 5 ... pickup base 6 ... pickup guide

7...구동원 8...기어군 10...피동판7 ... Driver 8 ... Gear group 10 ... Drive plate

13...리드바 14...결합돌기 15...걸림부13 ... lead bar 14 ... engagement protrusion 15 ... engagement part

20...결합부재 22...홀더 23...탄성편20 ... Joining member 22 ... Holder 23 ... Elastic piece

25...걸림턱 26...결합공25 ... Jack jaw 26 ... Joiner

상기 목적을 달성하기 위하여 본 발명에 따른 광픽업 이송장치는 데크와; 상기 데크에 결합 설치되며, 픽업베이스에 탑재된 광픽업의 이송을 가이드하는 가이드레일과; 상기 데크에 회전 가능하게 상기 가이드레일과 나란한 방향으로 설치된 리드스크류와; 상기 리드스크류를 회전 구동시키는 구동원과; 상기 리드스크류의 회전에 의해 상기 픽업베이스가 이송되도록 상기 픽업베이스를 상기 리드스크류에 결합하는 픽업가이드;을 포함하는 광픽업 이송장치에 있어서, 상기 픽업가이드는, 상기 리드스크류의 리드홈에 끼워져 맞물리는 리드바를 가지는 피동판과; 상기 픽업베이스에 설치된 설치판과, 상기 설치판의 일측에 형성되며 상기 피동판이 결합 설치되는 홀더와, 상기 홀더에 결합된 피동판을 상기 리드스크류쪽으로 탄성 가압하도록 상기 홀더에 형성된 탄성편을 구비한 결합부재;를 포함하는 것을 특징으로 한다.In order to achieve the above object, an optical pickup transport apparatus according to the present invention includes a deck; A guide rail coupled to the deck and configured to guide the transfer of the optical pickup mounted on the pickup base; A lead screw rotatably mounted to the deck in a direction parallel to the guide rail; A drive source for rotationally driving the lead screw; A pickup guide for coupling the pickup base to the lead screw so that the pickup base is transferred by the rotation of the lead screw, the pickup guide is fitted into the lead groove of the lead screw. A driven plate having a biting lead bar; And a mounting plate provided on the pick-up base, a holder formed on one side of the mounting plate and coupled to the driven plate, and an elastic piece formed on the holder to elastically press the driven plate coupled to the holder toward the lead screw. Coupled member; characterized in that it comprises a.

여기서, 상기 피동판은 상기 리드바와 대향되는 면에 형성된 결합돌기를 구비하고, 상기 탄성편에는 상기 결합돌기가 삽입될 수 있는 결합공이 형성되어 상기 피동판이 상기 홀더에 대해 상기 결합공을 중심으로 회동 가능한 것이 바람직하다.Here, the driven plate has a coupling protrusion formed on a surface facing the lead bar, the elastic piece is formed with a coupling hole into which the coupling protrusion can be inserted so that the driven plate rotates about the coupling hole with respect to the holder. It is desirable that it is possible.

이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명의 실시예에 따른 광픽업 이송장치를 개략적으로 나타낸 평면도이고, 도 4는 도 3의 픽업가이드를 개략적으로 나타내는 분리 사시도이고, 도 5 및 도 6은 각각 도 3의 측면도와 정면도이다.3 is a plan view schematically showing an optical pickup transport apparatus according to an exemplary embodiment of the present invention, FIG. 4 is an exploded perspective view schematically illustrating the pickup guide of FIG. 3, and FIGS. 5 and 6 are side and front views of FIG. 3, respectively. to be.

도시된 바와 같이, 광픽업 이송장치는 데크(1)와, 광픽업(2)의 이송을 가이드하는 한 쌍의 가이드레일(3)과, 데크(1)에 회전 가능하게 설치된 리드스크류(4)와, 이 리드스크류(4)를 회전 구동시키는 구동원(7)과, 픽업베이스(5)를 리드스크류(4)에 결합하는 픽업가이드(10)를 포함한다.As shown, the optical pickup transfer device includes a deck 1, a pair of guide rails 3 for guiding the transfer of the optical pickup 2, and a lead screw 4 rotatably installed on the deck 1; And a drive source 7 for rotationally driving the lead screw 4 and a pickup guide 10 for coupling the pickup base 5 to the lead screw 4.

데크(1)는 가이드레일(3)과 리드스크류(4)가 설치되는 기본 프레임이다. 한 쌍의 가이드레일(3) 상에는 픽업베이스(5)가 슬라이딩 가능하게 설치된다. 이 픽업베이스(5)에는 광픽업(2)이 설치된다. 리드스크류(4)는 구동원(7)의 회전력에 의해 회전한다. 이 구동원(7) 예를 들어, 모터에서 발생한 회전력은 주지된 바와 같이 한 쌍의 기어(8)나 벨트에 의해 변환되어 리드스크류(4)를 회전시킨다.The deck 1 is a basic frame on which the guide rail 3 and the lead screw 4 are installed. On the pair of guide rails 3, the pickup base 5 is slidably installed. The pickup base 5 is provided with an optical pickup 2. The lead screw 4 rotates by the rotational force of the drive source 7. For example, the rotational force generated by the drive source 7, for example, the motor, is converted by the pair of gears 8 or the belt to rotate the lead screw 4 as is well known.

픽업가이드(60)는 리드스크류(4)에 접촉되는 피동판(10)과, 픽업베이스(5)에 설치되는 결합부재(20)를 포함한다.The pickup guide 60 includes a driven plate 10 in contact with the lead screw 4 and a coupling member 20 installed in the pickup base 5.

피동판(10)은 리드스크류(4)의 리드홈(4a)에 끼워져 맞물리는 리드바(13)를 가지고 있고, 리드바(13)가 형성된 면과 대향되는 면에 결합돌기(14)가 형성되어 있다. 그리고, 피동판(10)의 양단은 걸림부(15)가 형성되어 있고, 이 걸림부(15)는 후술하는 결합부재(20)의 홀더(22)에 끼워지게 된다.The driven plate 10 has a lead bar 13 engaged with the lead groove 4a of the lead screw 4, and the engaging projection 14 is formed on a surface opposite to the surface on which the lead bar 13 is formed. It is. Then, both ends of the driven plate 10 is formed with a locking portion 15, the locking portion 15 is fitted to the holder 22 of the coupling member 20 to be described later.

결합부재(20)는 픽업베이스(5)에 설치되는 설치판(21)과, 피동판(10)이 결합 설치되는 홀더(22)와, 이 홀더(22)에 형성된 탄성편(23)를 구비한다.The coupling member 20 includes a mounting plate 21 installed on the pickup base 5, a holder 22 on which the driven plate 10 is coupled and installed, and an elastic piece 23 formed on the holder 22. do.

설치판(21)은 픽업베이스(도 4의 5)에 결합될 수 있도록 결착홈(24)이 형성되며, 이 설치판(21)과 수직되게 홀더(22)가 일체로 형성된다.The mounting plate 21 is formed with a binding groove 24 so as to be coupled to the pickup base (5 in FIG. 4), and the holder 22 is integrally formed to be perpendicular to the mounting plate 21.

홀더(22)에는 상기한 피동판(10)의 걸림부(15)가 끼워져 결합 설치되는 걸림턱(25)이 마련되어 있다.The holder 22 is provided with a locking jaw 25 to which the locking portion 15 of the driven plate 10 is fitted and installed.

탄성편(23)은 홀더(22)에 결합된 피동판(10)을 리드스크류(도 4의 4) 쪽으로 탄성 가압하도록 홀더(22)에 연장되어 형성되어 있고, 상기 결합돌기(14)가 삽입되는 결합공(26)이 형성된다. 따라서, 리드바(13)가 리드(4a)홈에 맞물림되어 직선 운동할 때 홀더(22)에 대해 소정 간격 회전 또는 유동 가능하도록 한다.The elastic piece 23 is formed to extend to the holder 22 to elastically press the driven plate 10 coupled to the holder 22 toward the lead screw (4 in Fig. 4), the coupling projection 14 is inserted Coupling holes 26 are formed. Therefore, when the lead bar 13 is engaged with the groove of the lead 4a and moves linearly, the lead bar 13 can be rotated or moved at a predetermined interval with respect to the holder 22.

이와 같이 구성된 광픽업 이송장치의 작동 과정을 설명하면 다음과 같다.Referring to the operation of the optical pickup transport device configured as described above are as follows.

먼저, 모터(7)가 작동하면 그 모터(7)의 회전력이 기어군(8)을 통해 리드스크류(4)로 전달되어 리드스크류(4)가 회전하게 된다. 그러면 상기 리드스크류(4)의 회전력이 상기 리드홈에 맞물린 픽업가이드(60)에 전달되어 픽업베이스(5)가 한 쌍의 가이드레일(3)을 따라 왕복 이송된다.First, when the motor 7 operates, the rotational force of the motor 7 is transmitted to the lead screw 4 through the gear group 8 so that the lead screw 4 rotates. Then, the rotational force of the lead screw 4 is transmitted to the pickup guide 60 engaged with the lead groove so that the pickup base 5 is reciprocated along the pair of guide rails 3.

이상에서 설명한 바와 같이 본 발명에 따른 광픽업 이송장치는 픽업베이스(5)에 고정된 결합부재(20)에 대해 리드스크류(4)가 기울어지는 경우, 피동판(10)의 리드바(13)가 상술한 결합공(26)을 중심으로 미세하게 회전 되어 어긋남을 보정함으로써, 리드홈과 리드바 사이의 바른 맞물림이 되도록 한다. 또한, 탄성편이 피동판을 가압하게 되므로 리드스크류와 리드바 사이의 백래쉬를 억제할 수 있다.As described above, in the optical pickup transport apparatus according to the present invention, when the lead screw 4 is inclined with respect to the coupling member 20 fixed to the pickup base 5, the lead bar 13 of the driven plate 10 is provided. Is finely rotated about the above-described coupling hole 26 to correct the misalignment so that a proper engagement between the lead groove and the lead bar is achieved. In addition, since the elastic piece presses the driven plate, the backlash between the lead screw and the lead bar can be suppressed.

Claims (2)

데크와;Decks; 상기 데크에 결합 설치되며, 픽업베이스에 탑재된 광픽업의 이송을 가이드하는 가이드레일과;A guide rail coupled to the deck and configured to guide the transfer of the optical pickup mounted on the pickup base; 상기 데크에 회전 가능하게 상기 가이드레일과 나란한 방향으로 설치된 리드스크류와;A lead screw rotatably mounted to the deck in a direction parallel to the guide rail; 상기 리드스크류를 회전 구동시키는 구동원과;A drive source for rotationally driving the lead screw; 상기 리드스크류의 회전에 의해 상기 픽업베이스가 이송되도록 상기 픽업베이스를 상기 리드스크류에 결합하는 픽업가이드;을 포함하는 광픽업 이송장치에 있어서,In the optical pickup transfer device comprising a; pickup guide for coupling the pickup base to the lead screw so that the pickup base is transferred by the rotation of the lead screw, 상기 픽업가이드는,The pickup guide, 상기 리드스크류의 리드홈에 끼워져 맞물리는 리드바를 가지는 피동판과;A driven plate having a lead bar fitted into and engaged with the lead groove of the lead screw; 상기 픽업베이스에 설치된 설치판과, 상기 설치판의 일측에 형성되며 상기 피동판이 결합 설치되는 홀더와, 상기 홀더에 결합된 피동판을 상기 리드스크류쪽으로 탄성 가압하도록 상기 홀더에 형성된 탄성편을 구비한 결합부재;를 포함하는 것을 특징으로 하는 광픽업 이송장치.And a mounting plate provided on the pick-up base, a holder formed on one side of the mounting plate and coupled to the driven plate, and an elastic piece formed on the holder to elastically press the driven plate coupled to the holder toward the lead screw. Optical pickup transport apparatus comprising a; coupling member. 제1항에 있어서, 상기 피동판은 상기 리드바에 대향되는 면에 형성된 결합돌기를 더 구비하고, 상기 탄성편에는 상기 결합돌기가 삽입될 수 있는 결합공이 형성되어 상기 피동판이 상기 홀더에 대해 상기 결합공을 중심으로 회동 가능하도록 된 것을 특징으로 하는 광픽업 이송장치.The method of claim 1, wherein the driven plate further comprises a coupling protrusion formed on the surface opposite the lead bar, the elastic piece is formed with a coupling hole into which the coupling protrusion can be inserted so that the driven plate is coupled to the holder Optical pickup transport apparatus characterized in that the pivoting around the ball.
KR1019970065044A 1997-12-01 1997-12-01 Apparatus for transferring optical pick-up KR100261093B1 (en)

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