KR950009783B1 - Disk clamping apparatus for disk player - Google Patents

Disk clamping apparatus for disk player Download PDF

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Publication number
KR950009783B1
KR950009783B1 KR1019910024200A KR910024200A KR950009783B1 KR 950009783 B1 KR950009783 B1 KR 950009783B1 KR 1019910024200 A KR1019910024200 A KR 1019910024200A KR 910024200 A KR910024200 A KR 910024200A KR 950009783 B1 KR950009783 B1 KR 950009783B1
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KR
South Korea
Prior art keywords
disc
disk
centering
turntable
clamping
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KR1019910024200A
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Korean (ko)
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KR930014275A (en
Inventor
박성연
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삼성전자주식회사
강진구
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Application filed by 삼성전자주식회사, 강진구 filed Critical 삼성전자주식회사
Priority to KR1019910024200A priority Critical patent/KR950009783B1/en
Priority to JP4338763A priority patent/JP2648427B2/en
Priority to DE4243972A priority patent/DE4243972A1/en
Publication of KR930014275A publication Critical patent/KR930014275A/en
Application granted granted Critical
Publication of KR950009783B1 publication Critical patent/KR950009783B1/en

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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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card

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  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Abstract

A turntable(2) manufactured in one piece with an elastomeric cushion(2a) is rotated by the shaft(1a) of a motor(1) while the disc is held down by a clamp(3) in its holder(4) under a ball(5) and a spring strip(6). Rubber pads(7) are fitted to the ends of coaxial projections spaced and dimentioned so that only the central projection(3a) enters the hole in a compact disc(D), but the intermediate projection(3b) additionally engages in the hole of a large disc. Compact discs and video discs can be centered, clamped and played back interchangeably in same apparatus.

Description

디스크 플레이어의 디스크 클램핑장치Disc clamping device for disc player

제1도는 종래 디스크 플레이어의 디스크 클램핑장치를 보인 입단면도.1 is a cross-sectional view showing a disc clamping device of a conventional disc player.

제2도는 본 발명에 따른 디스크 플레이어의 디스크 클램핑장치를 보인 입단면도로,2 is a sectional view showing the disc clamping device of the disc player according to the present invention;

a도는 콤팩트 디스크의 클램핑상태이고,a is the clamping state of the compact disc,

b도는 비디오 디스크의 클램핑상태이다.b is the clamping state of the video disc.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

2 : 턴테이블 3 : 클램퍼2: turntable 3: clamper

3a,3b : 제1, 제2센터링보스 3c,3d : 제1, 제2가압부3a, 3b: 1st, 2nd centering boss 3c, 3d: 1st, 2nd press part

6 : 스프링부재 7 : 마찰력이 큰 탄성부재6: spring member 7: elastic member with large friction

본 발명은 디스크 플레이어의 디스크 클램핑장치에 관한 것으로서, 더 상세하게는 클램핑 기능외에 규격이 다른 2종류의 디스크를 선택적으로 센터링하는 센터링기능을 가지는 디스크 플레이어의 디스크 클램핑장치에 관한 것이다.The present invention relates to a disc clamping apparatus for a disc player, and more particularly, to a disc clamping apparatus for a disc player having a centering function for selectively centering two types of discs having different specifications in addition to the clamping function.

일반적으로 디스크 플레이어는 디스크가 외부로부터 가해지는 충격으로 인해 흔들리거나 또는 턴테이블에 편심되게 정착된 상태로 구동될 경우 음의 재생기록시에 노이즈(Noise) 현상과 음의 끊어짐 및 지터(Jitter)현상이 발생되기 때문에 디스크가 턴테이블에 장착된 상태가 안전하도록 하기 위해 디스크 클램핑장치가 사용되고 있다.In general, a disc player causes noise, breaks, and jitter during recording of sound when the disc is shaken or driven eccentrically on the turntable. Because of this, disc clamping devices are used to ensure that the disc is mounted on the turntable.

제1도는 종래 디스크 플레이어의 디스크 클램핑장치가 도시되어 있는 바, 이는 모터(10)의 회전축(10a)에 고정결합되며 그 상면에 러버(11a)가 설치된 턴테이블(11)과, 상기 턴테이블(11)의 공간부(11b)에 스프링(13)에 의해 상방으로 탄성바이어스 되도록 설치되며 디스크(D)를 센터링하는 센터링보스(12)와, 클램핑홀더(14)에 볼(15)에 의해 회전 가능하게 설치되며 상기 턴테이블(11)에 안착된 디스크(D)를 클램핑하는 클램퍼(16)를 구비한다.1 shows a disc clamping device of a conventional disc player, which is fixedly coupled to a rotating shaft 10a of a motor 10 and having a rubber 11a installed on an upper surface thereof, and the turntable 11. It is installed so as to be elastically biased upward by the spring 13 in the space portion 11b of the centering boss 12 for centering the disk (D), it is installed rotatably by the ball 15 in the clamping holder (14) And a clamper 16 for clamping the disk D seated on the turntable 11.

이와 같이 구성된 종래 디스크 플레이어의 디스크 클램핑장치는 디스크(D)를 클램핑하는 클램퍼(16)와, 디스크(D)를 센터링하는 센터링보스(12)가 별도로 형성되고 상기 센터링보스(12)가 턴테이블(11)쪽에 스프링(13)에 의해 상방으로 탄성바이어스 되도록 설치되어 있으므로 턴테이블의 구조가 복잡하고 공간을 많이 차지하게 됨에 따라 디스크의 정보를 읽어내는 픽업(pick­up)의 형상 및 이동에 제약을 많이 받게 되는 문제점이 있었다. 또한 디스크를 센터링하는 센터링보스(12)의 구조가 단일규격의 디스크만을 센터링하도록 되어 있으므로, 규격이 다른 2종의 디스크를 예를 들면 콤팩트디스크(CD)와 비디오디스크(LD)를 겸용으로 사용할 수 없게 되는 문제점이 있었다.In the disk clamping apparatus of the conventional disc player configured as described above, the clamper 16 clamping the disk D and the centering boss 12 for centering the disk D are separately formed, and the centering boss 12 is a turntable 11. Since the spring 13 is installed to be elastically biased upward, the structure of the turntable is complicated and occupies a lot of space, so that the shape and movement of the pickup that reads the disk information are restricted. There was this. In addition, since the centering boss 12 for centering the disc is designed to center only a single standard disc, two discs having different specifications can be used, for example, a compact disc (CD) and a video disc (LD). There was a problem of disappearing.

본 발명은 상술한 바와 같은 문제점을 감안하여 창출된 것으로서, 턴테이블의 구조를 단순화 함과 동시에 클램핑기능외에 규격이 다른 2종류의 디스크를 선택적으로 센터링하는 센터링기능을 가지는 디스크 플레이어의 디스크 클램핑장치를 제공함에 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a disk clamping apparatus for a disc player having a centering function for simplifying the structure of the turntable and selectively centering two types of disks having different specifications in addition to the clamping function. Has its purpose.

상기의 목적을 달성하기 위하여 본 발명은, 회전구동되는 턴테이블과, 이 턴테이블 상부에 승강 및 회전가능 하게 설치된 클램퍼를 구비하여 그들 사이에 디스크를 클램핑시켜 구동하게 된 디스크 플레이어의 디스크 클램핑장치에 있어서, 상기 클램퍼가 규격이 다른 2종류의 디스크를 선택적으로 센터링하는 제1, 제2센터링보스와, 그 센터링과 동시에 각 디스크의 상면을 가압 클램핑하는 제1, 제2가압부를 구비하여 된 점에 그 특징이 있다.In order to achieve the above object, the present invention, in the disk clamping apparatus of a disk player having a rotationally driven turntable and a clamper mounted on the turntable to be elevated and rotatably mounted to drive the clamping disk therebetween, The clamper includes first and second centering bosses for selectively centering two types of disks having different specifications, and first and second pressing parts for pressurizing and clamping the upper surface of each disk simultaneously with the centering. There is this.

이하 첨부된 도면을 참조하여 본 발명에 따른 한 바람직한 실시예를 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.

제2도에는 본 발명에 따른 디스크 플레이어의 디스크 클램핑장치가 도시되어 있는 바, 이는 모터(1)의 회전축(1a)에 고정결합되며 상면에 마찰력이 큰 탄성부재(2a)가 설치된 단일몸체의 턴테이블(2)과 클램핑홀더(4)에 볼(5)에 의해 회전가능하게 설치됨과 동시에 스프링부재(6)에 의해 하방으로 탄성바이어스되도록 설치되며, 그 하부에 규격이 다른 2종류의 디스크, 즉 콤팩트디스크(D)나 비디오디스크(D')를 선택적으로 센터링하는 제1, 2센터링보스(3a)(3b)와 상기 각 디스크(D)(D')의 상면을 가압클램핑하는 제1, 제2가압부(3c)(3d)가 형성된 클램퍼(3)를 구비한다. 그리고 상기 제1가압부(3c)는 상기 제2센터링보스(3b)의 단부에 마련되며, 상기 제1가압부(3c)와 제2가압부(3d)에는 상기 디스크와 접촉되는 마찰력이 큰 탄성부재(7)가 각각 설치된다. 여기에서 상기 제1, 제2센터링보스(3a)(3b)와 제1, 2가압부(3c)(3d)는 원통형으로 형성되고, 상기 제1, 제2센터링보스(3a)(3b)의 디스크(D)(D')와 접촉되는 부위는 곡면으로 형성되며, 상기 마찰력이 큰 탄성부재(7)로는 고무가, 스프링부재(6)로는 판스프핑이 사용된다.2 shows a disc clamping device of a disc player according to the present invention, which is fixedly coupled to the rotating shaft 1a of the motor 1 and has a single body turntable provided with an elastic member 2a having a high frictional force on its upper surface. (2) and the clamping holder (4) is rotatably installed by the ball (5) and at the same time is installed so as to be elastically biased downward by the spring member (6), two kinds of discs of different sizes, that is, compact in the lower part First and second centering bosses 3a and 3b for selectively centering the disk D or the video disk D ', and first and second pressure clamping upper surfaces of the respective disks D and D'. The clamper 3 in which the press part 3c, 3d was formed is provided. The first pressing part 3c is provided at an end of the second centering boss 3b, and the first pressing part 3c and the second pressing part 3d are elastically large in contact with the disk. Each member 7 is provided. Here, the first and second centering bosses 3a and 3b and the first and second pressing parts 3c and 3d are formed in a cylindrical shape, and the first and second centering bosses 3a and 3b are formed in a cylindrical shape. The portion in contact with the disk (D) (D ') is formed in a curved surface, rubber is used as the elastic member 7 having a large friction force, and plate sprinkling is used as the spring member 6.

이와 같이 구성된 본 발명에 따른 디스크 플레이어의 디스크 클램핑장치는 다음과 같이 작동되는데, 먼저 콤팩트디스크(D)를 클램핑하는 경우에는 제2a도에 도시되어 있는 바와 같이 턴테이블(2)의 상면에 콤팩트디스크(D)를 안착시킨 다음 클램프홀더(4)를 하강시키면, 클램퍼(3)의 제1센터링보스(3a)가 상기 콤팩트디스크(D)의 중앙홈(3b)에 결합되어 콤팩트디스크(D)를 센터링함과 동시에 제2센터링보스(3b)의 선단에 마련된 제1가압부(3c)가 콤팩트디스크(D)를 클램핑하게 된다.The disc clamping apparatus of the disc player according to the present invention configured as described above operates as follows. In the case where the compact disc D is clamped, the compact disc (on the upper surface of the turntable 2, as shown in FIG. After mounting D) and lowering the clamp holder 4, the first centering boss 3a of the clamper 3 is coupled to the center groove 3b of the compact disk D to center the compact disk D. At the same time, the first pressing portion 3c provided at the tip of the second centering boss 3b clamps the compact disc D.

그리고 비디오디스크(D')를 클램핑할 경우에는 제2b도에 도시된 바와 같이 턴테이블(2)의 상면에 비디오디스크(D')를 안착시킨 다음 클램프홀더(4)를 하강시키면 클램퍼(3)의 제2센터링보스(3b)가 상기 비디오디스크(D')의 중앙홈(Da')에 결합되어 비디오디스크(D')를 센터링시킴과 동시에 제2가압부(3d)가 비디오디스크(D')를 클램핑시키게 된다.In the case of clamping the video disk D ', the video disk D' is seated on the top surface of the turntable 2 as shown in FIG. 2B, and then the clamp holder 4 is lowered. The second centering boss 3b is coupled to the center groove Da 'of the video disk D' to center the video disk D ', and the second pressing unit 3d is connected to the video disk D'. Will be clamped.

여기서 제1가압부(3c)와 제2가압부(3d)가 상기 각 디스크(D)(D')의 상면을 가압할때, 클램퍼(3)는 스프링부재(6)에 의해서 하향으로 탄성바이어스되므로 그 스프링력에 의해서 탄력적으로 각 디스크(D)(D')를 무리없이 클램핑할 수 있게 된다. 또한, 제1가압부(3c)와 제2가압부(3d)의 선단에 마찰력이 큰 탄성부재(7)가 설치되어 있으므로 회전시 디스크의 미끄럼이 방지되고, 스프링부재(6)에 의해 턴테이블(2)의 진동으로 인한 클램퍼(3)의 진동이 완화되게 되며, 제1, 제2센터링보스(3a)(3b)에 의해 디스크의 이탈이나 편심이 방지되게 된다.Here, when the first pressing portion 3c and the second pressing portion 3d press the upper surface of each of the disks D and D ', the clamper 3 is elastically biased downward by the spring member 6. Therefore, it is possible to clamp each disk D (D ') without difficulty by the spring force. In addition, since the elastic member 7 having a large frictional force is provided at the ends of the first pressing part 3c and the second pressing part 3d, the disc is prevented from sliding during rotation, and the spring member 6 makes the turntable ( Vibration of the clamper 3 due to the vibration of 2) is alleviated, and disc separation or eccentricity is prevented by the first and second centering bosses 3a and 3b.

이상에서 설명한 바와 같이 본 발명 디스크 플레이어의 디스크 클램핑장치는 규격이 서로 다른 2종의 디스크를 선택적으로 클램핑하여 사용할 수 있게 되고, 디스크의 이탈 및 편심을 방지할 수 있게 되며, 턴테이블쪽의 진동으로 인한 클램퍼의 진동이 완화되어 클램퍼의 클램핑상태가 안정되게 되고, 턴테이블의 구조가 단순화되게 되는 등의 이점이 있는 것이다.As described above, the disc clamping apparatus of the disc player of the present invention can be used by selectively clamping two kinds of discs having different specifications, and can prevent the disc from being separated and eccentric, and due to the vibration of the turntable side. The vibration of the clamper is alleviated so that the clamping state of the clamper is stabilized, and the structure of the turntable is simplified.

Claims (4)

회전구동되는 턴테이블과, 이 턴테이블 상부에 승강 및 회전가능하게 설치된 클램퍼를 구비하여 그들 사이에 디스크를 클램핑시켜 구동하게 된 디스크 플레이어의 디스크 클램핑장치에 있어서, 상기 클램퍼(3)가 규격이 다른 2종류의 디스크를 선택적으로 센터링하는 제1, 제2센터링보스(3a)(3b)와, 그 센터링과 동시에 각 디스크의 상면을 가압 클램핑하는 제1, 제2가압부(3c)(3d)를 구비하여 된 것을 특징으로 하는 디스크 플레이어의 디스크 클램핑장치.In the disc clamping apparatus of a disc player, which has a rotationally driven turntable and a clamper mounted on the turntable so as to be elevated and rotatably driven to clamp the disc therebetween, the clamper 3 being of two types having different specifications. First and second centering bosses 3a and 3b for selectively centering the disks of the disks, and first and second pressing parts 3c and 3d for pressurizing and clamping the upper surface of each disk simultaneously with the centering. Disc clamping device of a disc player, characterized in that the. 제1항에 있어서, 상기 클램퍼(3)가 스프링부재(6)에 의해 하방으로 탄성바이어스 되도록 설치된 것을 특징으로 하는 디스크 플레이어의 디스크 클램핑장치.The disc clamping device of a disc player according to claim 1, wherein the clamper (3) is installed to be elastically biased downward by a spring member (6). 제1항에 있어서, 상기 제1가압부(3c)가 상기 제2센터링보스(3b)에 마련되어 된 것을 특징으로 하는 디스크 플레이어의 디스크 클램핑장치.The disk clamping device of a disc player according to claim 1, wherein said first pressing portion (3c) is provided in said second centering boss (3b). 제1항 또는 제3항중의 적어도 어느 한 항에 있어서, 상기 제1가압부(3c)와 제2가압부(3d)에 상기 디스크와 접촉되는 마찰력이 큰 탄성부재(7)가 각각 설치되어 된 것을 특징으로 하는 디스크 플레이어의 디스크 클램핑장치.The elastic member 7 having a large frictional force in contact with the disk is provided in the first pressurizing part 3c and the second pressurizing part 3d, respectively. Disc clamping device of a disc player, characterized in that.
KR1019910024200A 1991-12-24 1991-12-24 Disk clamping apparatus for disk player KR950009783B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019910024200A KR950009783B1 (en) 1991-12-24 1991-12-24 Disk clamping apparatus for disk player
JP4338763A JP2648427B2 (en) 1991-12-24 1992-12-18 Disc clamping device for disc players
DE4243972A DE4243972A1 (en) 1991-12-24 1992-12-23 Clamping device for discs of different sizes - has three coaxial projections from clamping ring compatible with different diameters of holes in disc centres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910024200A KR950009783B1 (en) 1991-12-24 1991-12-24 Disk clamping apparatus for disk player

Publications (2)

Publication Number Publication Date
KR930014275A KR930014275A (en) 1993-07-22
KR950009783B1 true KR950009783B1 (en) 1995-08-28

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KR (1) KR950009783B1 (en)
DE (1) DE4243972A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07182754A (en) * 1993-12-24 1995-07-21 Toshiba Corp Discoid medium clamping device
JPH09219038A (en) * 1996-02-13 1997-08-19 Pioneer Electron Corp Optical disk
US6741544B1 (en) 1997-09-25 2004-05-25 Matsushita Electric Industrial Co., Ltd. Disk drive apparatus
TWI258735B (en) * 2005-01-25 2006-07-21 Benq Corp Disc clamp assembly
KR101428046B1 (en) * 2007-11-12 2014-08-07 엘지전자 주식회사 Optical pick-up device, movable tray type optical pick-up device, disk sustaining apparatus for the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60247851A (en) * 1984-05-23 1985-12-07 Victor Co Of Japan Ltd Disk clamping device
JPS6222750U (en) * 1985-07-24 1987-02-12
JPH0535472Y2 (en) * 1988-02-15 1993-09-08

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JP2648427B2 (en) 1997-08-27
KR930014275A (en) 1993-07-22
JPH05242578A (en) 1993-09-21
DE4243972A1 (en) 1993-07-01

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