KR100269154B1 - Turn table assembly of disk player - Google Patents

Turn table assembly of disk player Download PDF

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Publication number
KR100269154B1
KR100269154B1 KR1019980004765A KR19980004765A KR100269154B1 KR 100269154 B1 KR100269154 B1 KR 100269154B1 KR 1019980004765 A KR1019980004765 A KR 1019980004765A KR 19980004765 A KR19980004765 A KR 19980004765A KR 100269154 B1 KR100269154 B1 KR 100269154B1
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KR
South Korea
Prior art keywords
disk
cap member
base member
turntable assembly
slots
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KR1019980004765A
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Korean (ko)
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KR19990070104A (en
Inventor
이영표
박태원
안철웅
Original Assignee
윤종용
삼성전자주식회사
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Application filed by 윤종용, 삼성전자주식회사 filed Critical 윤종용
Priority to KR1019980004765A priority Critical patent/KR100269154B1/en
Publication of KR19990070104A publication Critical patent/KR19990070104A/en
Application granted granted Critical
Publication of KR100269154B1 publication Critical patent/KR100269154B1/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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
    • 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

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

Abstract

PURPOSE: A turntable assembly is provided for stably centering a mounted disk, and to improve structure of the assembly for reducing size. CONSTITUTION: A base member(30) is coupled to a shaft(61) of a spindle motor(60). A cap member(10) is installed at an upper portion of the base member for being inserted to a center hole(71) of a disk(70). A leaf spring member(40) is installed between the base member and the cap member. The cap member includes through slots(11) on side walls, and the leaf spring member includes elastic pieces(41) corresponding to the through slots. The elastic pieces are protruded for pressing a rim portion(72) of the central hole on the disk. Herein, the elastic pieces are elastically biased to the protrusion direction through the combining slots not to require a space between the base member and the cap member.

Description

디스크 플레이어의 턴테이블 조립체{Turn table assembly of disk player}Turn table assembly of disk player

본 발명은 디스크 플레이어의 턴테이블 조립체에 관한 것으로서, 특히 슬림화에 유리하도록 구조 개선된 디스크 플레이어의 턴테이블 조립체에 관한 것이다.TECHNICAL FIELD The present invention relates to a turntable assembly of a disc player, and more particularly to a turntable assembly of a disc player whose structure is improved to be advantageous for slimming.

일반적으로 CD-ROM이나 DVDP(digital video disk player)와 같은 디스크 플레이어에는 디스크를 안착하여 회전시키기 위한 턴테이블 조립체가 마련되어 있다.In general, a disk player such as a CD-ROM or a digital video disk player (DVDP) is provided with a turntable assembly for seating and rotating a disk.

종래에는 이와 같은 턴테이블 조립체로서, 도 1 및 도 2에 도시된 바와 같은 구조가 채용되었다. 도시된 바와 같이 종래의 턴테이블 조립체는, 디스크(7)가 안착되는 베이스부재(3)와, 상기 베이스부재(3)의 상부에 설치되며 디스크(7)에 형성된 중앙홀(7a)에 삽입되는 캡부재(1)와, 안착된 디스크(7)를 척킹시키기 위해 소정의 척킹부재(8)와 자력결합되도록 상기 캡부재(1)에 설치되는 마그네트(2)와, 상기 베이스부재(3) 및 캡부재(1) 사이에 형성된 내부공간에 승강가능하게 설치되는 링부재(5) 및, 상기 링부재(5)를 상승되는 방향으로 탄성바이어스시키는 압축스프링(4)을 포함하여 구성된다. 상기 링부재(5)에는 소정 각도로 경사진 경사면(5a)이 형성되어 있어서, 이 경사면(5a)이 안착된 디스크(7)의 중앙홀(7a) 테두리부에 접촉된다. 따라서 상기 압축스프링(4)의 탄성력에 의해 상기 링부재(5)가 상승되면, 상기 경사면(5a)이 안착된 디스크(7)의 중앙홀(7a) 테두리부를 그 디스크(7)의 반경방향 외측으로 가압함으로써 디스크(7)가 베이스(3) 상에서 유동되지 않고 턴테이블 조립체의 중앙에 위치되게 한다. 참조부호 6은 상기 턴테이블 조립체를 회전구동시키기 위한 스핀들모터, 참조부호 6a는 상기 스핀들모터(6)의 샤프트를 나타내며, 참조부호 9는 데크를 나타낸다.Conventionally, as such a turntable assembly, a structure as shown in Figs. 1 and 2 is employed. As shown, a conventional turntable assembly includes a base member 3 on which a disk 7 is seated, and a cap installed in an upper portion of the base member 3 and inserted into a central hole 7a formed in the disk 7. A magnet (2) installed in the cap member (1) so as to be magnetically coupled with a predetermined chucking member (8) for chucking the member (1), the seated disc (7), the base member (3) and the cap It comprises a ring member (5) which is installed to be elevated in the inner space formed between the members (1), and a compression spring (4) for elastically biasing the ring member 5 in the rising direction. An inclined surface 5a inclined at a predetermined angle is formed in the ring member 5 so that the inclined surface 5a contacts the edge portion of the center hole 7a of the disk 7 on which it is seated. Accordingly, when the ring member 5 is raised by the elastic force of the compression spring 4, the edge portion of the center hole 7a of the disk 7 on which the inclined surface 5a is seated is radially outer side of the disk 7. Pressing on causes the disk 7 to be positioned in the center of the turntable assembly without flowing on the base 3. Reference numeral 6 denotes a spindle motor for rotating the turntable assembly, reference numeral 6a denotes a shaft of the spindle motor 6, and reference numeral 9 denotes a deck.

그런데 이와 같은 구조의 턴테이블 조립체는, 상기 베이스부재(3)와 캡부재(1) 사이에 형성된 내부공간의 높이를, 상기 압축스프링(4)이 압축 및 팽창될 수 있는 높이와, 그 압축스프링(4)위에 설치되는 링부재(5)의 높이를 합한 만큼 확보해야 하기 때문에, 턴테이블 조립체의 두께(t)를 더 이상 얇게 만들 수가 없다. 이러한 구조의 턴테이블 조립체 두께(t)는 통상 9mm 정도가 필요하게 된다. 따라서, 최근의 추세가 디스크 플레이어를 슬림(slim)화하려는 방향으로 진행되고 있는데 비해, 상기와 같은 종래의 턴테이블 조립체는 상기 압축스프링(4)과 링부재(5)의 절대 높이를 확보해야 하는 이유로 그 두께(t)를 더 이상 줄일 수 없고, 이것이 슬림화를 방해하는 요인이 되고 있다.However, the turntable assembly having such a structure may include the height of the inner space formed between the base member 3 and the cap member 1, the height at which the compression spring 4 may be compressed and expanded, and the compression spring ( 4) The thickness t of the turntable assembly can no longer be made thin because the heights of the ring members 5 installed on the sum must be secured. The turntable assembly thickness t of this structure usually requires about 9 mm. Therefore, while the recent trend is progressing in the direction of slimming the disc player, the conventional turntable assembly as described above is a reason that the absolute height of the compression spring 4 and the ring member 5 must be secured. The thickness t can no longer be reduced, which is a factor that hinders slimming.

본 발명은 상기의 점을 감안하여 창출된 것으로서, 안착된 디스크를 안정되게 센터링시킬 수 있으며, 슬림화에 유리하도록 구조 개선된 디스크 플레이어의 턴테이블 조립체를 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made in view of the above point, and an object of the present invention is to provide a turntable assembly of a disc player that can be stably centered on a seated disc and is improved in structure to be advantageous in slimming.

도 1 및 도 2는 종래의 턴테이블 조립체를 보인 단면도,1 and 2 is a cross-sectional view showing a conventional turntable assembly,

도 3은 본 발명에 따른 턴테이블 조립체를 보인 분리사시도,3 is an exploded perspective view showing a turntable assembly according to the present invention;

도 4는 도 3에 도시된 턴테이블 조립체의 결합단면도.4 is a cross-sectional view of the turntable assembly shown in FIG.

< 도면의 주요부분에 대한 부호의 설명 ＞<Description of Symbols for Main Parts of Drawings>

10...캡부재 11...관통슬롯10 ... cap member 11 ... through slot

20...마그네트 30...베이스부재20 ... Magnet 30 ... Base member

40...판스프링부재 41...탄성편40 ... plate spring member 41 ... elastic piece

41a...경사면 60...스핀들모터41a ... slope 60 ... spindle motor

61...샤프트 70...디스크61.Shaft 70 ... Disc

71...중앙홀 72...테두리부71 ... the central hall 72 ... the border

상기의 목적을 달성하기 위한 본 발명은, 디스크가 안착되는 베이스부재와; 상기 디스크에 형성된 중앙홀에 삽입되도록 상기 베이스부재의 상부에 설치되고, 그 측벽에 적어도 하나의 관통슬롯이 형성된 캡부재와; 상기 베이스부재와 상기 캡부재 사이에 설치되며, 상기 관통슬롯을 통해 탄력적으로 돌출됨으로써 상기 디스크의 중앙홀 테두리부를 그 디스크의 반경방향 외측으로 가압하는 적어도 하나의 탄성편을 가진 판스프링부재;를 포함하는 것을 특징으로 한다.The present invention for achieving the above object, the base member is seated disk; A cap member installed on an upper portion of the base member to be inserted into a central hole formed in the disk, and having at least one through slot formed on a sidewall of the cap member; A plate spring member installed between the base member and the cap member, the plate spring member having at least one elastic piece that elastically protrudes through the through slot and presses the center hole rim of the disk radially outward of the disk. Characterized in that.

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

도 3 및 도 4는 본 발명에 따른 디스크 플레이어의 턴테이블 조립체를 나타낸다.3 and 4 show a turntable assembly of a disc player according to the invention.

도시된 바와 같이 본 발명의 턴테이블 조립체는, 스핀들모터(60)의 샤프트(61)와 결합되어 회전되며 그 위에 디스크(70)가 안착되는 베이스부재(30)와, 상기 디스크(70)에 형성된 중앙홀(71)에 삽입되도록 베이스부재(30)의 상부에 설치되는 캡부재(10)와, 상기 베이스부재(30)와 상기 캡부재(10) 사이에 설치된 판스프링부재(40)를 포함하여 구성된다. 여기서 상기 캡부재(10)의 측벽에는 복수의 관통슬롯(11)이 동일 간격으로 형성되어 있고, 상기 판스프링부재(40)에는 상기 관통슬롯(11)과 대응되는 탄성편(41)이 역시 동일 간격으로 형성되어 있다. 이 탄성편(41)은 상기 관통슬롯(11)을 통해 외부로 탄력적으로 돌출됨으로써 상기 디스크(70)의 중앙홀(71) 테두리부(72)를 그 디스크(70)의 반경방향 외측으로 가압하게 된다. 이를 위해 상기 탄성편(41)에는 소정 각도로 경사진 경사면(41a)이 마련되어 있어서, 디스크(70)의 중앙홀(71) 테두리부(72)가 이 경사면(41a)을 따라 안착되면서 상기 탄성편(41)을 캡부재(10) 내측으로 누르게 되며, 이와 같이 눌려진 탄성편(41)은 그 탄성복원력에 의해 중앙홀(71) 테두리부(72)를 반경방향 외측으로 가압한다. 도면의 참조부호 20은 상기 캡부재(10)의 상면에 설치되어 턴테이블 조립체의 상방에 설치된 척킹부재(8; 도 1 참조)와 자력결합됨으로써 디스크(70)를 척킹시키는 마그네트를 나타낸다. 이 마그네트(20)는 상기 척킹부재(8; 도 1 참조)에 설치하여서 상기 캡부재(10)와 자력결합되도록 역으로 구성할 수도 있다.As shown, the turntable assembly of the present invention is coupled to the shaft 61 of the spindle motor 60, the base member 30 is rotated and the disk 70 is seated thereon, and the center formed on the disk 70 Cap member 10 is installed on the upper portion of the base member 30 to be inserted into the hole 71, and comprises a leaf spring member 40 provided between the base member 30 and the cap member 10 do. Here, a plurality of through slots 11 are formed on the side wall of the cap member 10 at equal intervals, and the leaf spring member 40 has the same elastic piece 41 corresponding to the through slots 11. It is formed at intervals. The elastic piece 41 elastically protrudes outwardly through the through slot 11 so as to press the edge portion 72 of the center hole 71 of the disk 70 radially outward of the disk 70. do. To this end, the elastic piece 41 is provided with an inclined surface 41a inclined at a predetermined angle, so that the center portion 71 edge portion 72 of the disk 70 is seated along the inclined surface 41a, and the elastic piece 41 is mounted thereon. The 41 is pressed into the cap member 10, and the elastic piece 41 pressed in this way presses the center hole 71 edge portion 72 radially outward by the elastic restoring force. Reference numeral 20 in the drawings denotes a magnet installed on the upper surface of the cap member 10 and chucking the disk 70 by magnetically coupling with the chucking member 8 (see FIG. 1) installed above the turntable assembly. The magnet 20 may be installed in the chucking member 8 (refer to FIG. 1) to be reversely configured to be magnetically coupled to the cap member 10.

상기 구성에 있어서, 디스크(70)를 베이스부재(30) 위에 안착시키게 되면, 상기 디스크(70)의 중앙홀(71)은 상기 캡부재(10)에 끼워지게 된다. 이때 전술한 바와 같이, 상기 디스크(70)의 중앙홀(71) 테두리부(72)가 상기 경사면(41a)을 따라 슬라이딩되며 안착되면서 상기 탄성편(41)을 캡부재(10) 내측으로 누르게 되며, 눌려진 탄성편(41)은 그 탄성복원력에 의해 중앙홀(71) 테두리부(72)를 반경방향 외측 즉, 도 4의 화살표 방향으로 가압한다. 이와 같이 상기 탄성편(41)은, 종래의 링부재(5; 도 1 참조)와 같이 수직으로 승강되는 것이 아니라 상기 결합슬롯(11)을 통해 돌출되는 방향으로 탄성바이어스된 것이기 때문에, 상기 베이스부재(30)와 캡부재(10) 사이에 별도의 공간을 필요로 하지 않는다.In the above configuration, when the disk 70 is seated on the base member 30, the center hole 71 of the disk 70 is fitted to the cap member 10. At this time, as described above, the center portion 71 of the disk 70, the edge portion 72 is slid along the inclined surface (41a) while being seated to press the elastic piece 41 into the cap member 10 inside. The pressed elastic piece 41 presses the center hole 71 edge portion 72 in the radially outer direction, that is, the arrow direction of FIG. 4 by the elastic restoring force. As described above, the base piece is elastically biased in a direction protruding through the coupling slot 11, rather than being vertically lifted like the conventional ring member 5 (see FIG. 1). There is no need for a separate space between the 30 and the cap member 10.

따라서 상기 판스프링부재(40)는 상기 베이스부재(30)와 캡부재(10)에 각각 밀착된 상태로 설치될 수 있으며, 그에 따라 턴테이블 조립체의 두께(t')가 종래 대비 약 1/3정도로 감소될 수 있다.Therefore, the leaf spring member 40 may be installed in close contact with the base member 30 and the cap member 10, respectively, so that the thickness t 'of the turntable assembly is about one third of that of the conventional art. Can be reduced.

상술한 바와 같이 본 발명에 따른 디스크 플레이어의 턴테이블 조립체는, 결합슬롯을 통해 탄력적으로 돌출되는 복수의 탄성편을 가진 판스프링부재를 채용하여 베이스부재와 캡부재 사이의 공간을 없앰으로써, 턴테이블 조립체의 두께를 크게 감소시켜 디스크 플레이어의 슬림화에 기여하는 이점이 있다.As described above, the turntable assembly of the disc player according to the present invention employs a leaf spring member having a plurality of elastic pieces projecting elastically through the coupling slot, thereby eliminating the space between the base member and the cap member. The thickness is greatly reduced, which contributes to the slimming of the disc player.

본 발명은 상기에 설명되고 도면에 예시된 것에 의해 한정되는 것은 아니며, 다음에 기재되는 청구의 범위 내에서 더 많은 변형 및 변용예가 가능한 것임은 물론이다.It is to be understood that the invention is not limited to that described above and illustrated in the drawings, and that more modifications and variations are possible within the scope of the following claims.

Claims (2)

디스크가 안착되는 베이스부재와;A base member on which the disk is mounted; 상기 디스크에 형성된 중앙홀에 삽입되도록 상기 베이스부재의 상부에 설치되고, 그 측벽에 적어도 하나의 관통슬롯이 형성된 캡부재와;A cap member installed on an upper portion of the base member to be inserted into a central hole formed in the disk, and having at least one through slot formed on a sidewall of the cap member; 상기 베이스부재와 상기 캡부재 사이에 설치되며, 상기 관통슬롯을 통해 탄력적으로 돌출됨으로써 상기 디스크의 중앙홀 테두리부를 그 디스크의 반경방향 외측으로 가압하는 적어도 하나의 역"U"자형 탄성편을 가진 판스프링부재;를 포함하는 것을 특징으로 하는 디스크 플레이어의 턴테이블 조립체.A plate having at least one inverted " U " elastic piece provided between the base member and the cap member and elastically projecting through the through slot to press the center hole rim of the disk radially outward of the disk; Spring member; turntable assembly of the disc player comprising a. 제1항에 있어서,The method of claim 1, 상기 관통슬롯은 상기 캡부재의 측벽에 동일 간격으로 복수개가 형성되고, 상기 탄성편도 그 각각의 관통슬롯에 대응되도록 동일 간격으로 형성된 것을 특징으로 하는 디스크 플레이어의 턴테이블 조립체.The plurality of through slots are formed on the side wall of the cap member at equal intervals, and the elastic piece is formed at equal intervals so as to correspond to the respective through slots.
KR1019980004765A 1998-02-17 1998-02-17 Turn table assembly of disk player KR100269154B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04216364A (en) * 1990-12-14 1992-08-06 Mitsubishi Electric Corp Disk loader
KR930016992A (en) * 1992-01-24 1993-08-30 오오가 노리오 Disk Table and Manufacturing Method of Disk Table

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04216364A (en) * 1990-12-14 1992-08-06 Mitsubishi Electric Corp Disk loader
KR930016992A (en) * 1992-01-24 1993-08-30 오오가 노리오 Disk Table and Manufacturing Method of Disk Table

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