KR100594212B1 - Disk player - Google Patents

Abstract

The present invention relates to a disc player. In the disc player according to the present invention, a disc pressing portion is provided in the clamper bracket for supporting the clamper, and the disc pressing portion pushes the disc carried by the disc tray toward the centerline side of the disc receiving portion when the disc tray enters the housing. Note that since the minimum diameter of the turntable tip is located in the region of the center hole of the disk, clamping of the disk carried into the housing can be performed accurately.

Description

Disk player {Disk player}

1 is a schematic front view of a conventional disc player.

FIG. 2 is a schematic sectional view taken along the line II-II of the disc player shown in FIG.

3 is a schematic front view of a disc player according to an embodiment of the present invention.

4 and 5 are views for explaining the process of entering the disc tray in the state shown in Figure 3 into the housing.

FIG. 6 is a schematic cross-sectional view taken along line VI-VI of the disc player shown in FIG. 3.

FIG. 7 is a schematic enlarged view of a main portion of FIG. 6.

<Description of Symbols for Main Parts of Drawings>

10.Housing 20 ... Disc Tray

21 ... disk housing 30 ... turntable

31 Insert 32 Tapered

40 ... Clamper 60 ... Clamper Bracket

61.Disk presser

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player, and more particularly, to a disc player having an improved structure so that clamping of a disc can be performed smoothly even if it is installed upright.

Disc players which reproduce information recorded on or record information on a disc such as a compact disc (CD) or a digital multi-function disc (DVD) or the like generally have a housing 10 and a housing thereof as shown in FIG. (10) A disk tray 20 is provided to enter and exit from inside and outside. The disc tray 20 is provided with a disc accommodating portion 21 for accommodating the disc 9. The disc accommodating portion 21 is formed to have a diameter somewhat larger than the diameter of the disc 9 so that the disc 9 can be easily stored and taken out. When the disc tray 20 enters the housing 10 as shown in phantom in FIG. 1, the disc 9 accommodated in the disc accommodating portion 21 is carried into the housing 10 to be shown in FIG. 2. As shown, it is located between the turntable 30 and the clamper 40. The turntable 30 is rotatably attached to the deck plate 11. The clamper 40 is attached to the clamper bracket 50 fixed to the housing 10 by screws 19 or the like.

As shown in FIG. 2, when the disk 9 is positioned between the turntable 30 and the clamper 40, the turntable 30 is approached to the clamper 40 side together with the deck plate 11 to lift the disk 9. So-called disk clamping which comes into close contact with the clamper 40 is performed. The insertion part 31 of the turntable 30 is inserted into the central hole 99 of the disc 9 to position the disc 9 during the above-described disc clamping process. The clamped disc 9 is rotated together with the clamper 40 when the turntable 30 is rotated by the spindle motor 15.

On the other hand, the disc player may be installed in a standing state, that is, with the surface of the disc 9 substantially perpendicular to the ground. In this case, since the disk accommodating portion 21 has a diameter somewhat larger than the diameter of the disk 9 as described above, the disk 9 accommodated in the disk accommodating portion 21 is shown in FIG. 1 by its own weight. As shown below. For reference, in a disc player installed in an upright position, means for preventing the disc 9 accommodated in the disc accommodation portion 21 of the disc tray 20 from being completely detached from the disc accommodation portion 21 (not shown). ) Is provided.

As described above, the disc 9 which is downwardly moved in the disc accommodating portion 21 is moved to the clamping position in such a state even when the disc tray 20 is moved. Thus, as shown in FIG. 2, the center line DC of the disk 9 in the clamping position is far from the center line TC of the turntable 30.

As such, if the centerline of the disc at the clamping position is far away from the centerline of the turntable, the leading end of the turntable insert may be out of the area of the center hole of the disc such that the insert of the turntable cannot be inserted into the center hole of the disc or is incomplete at the time of clamping. Since the insertion occurs in a state, there is a problem that accurate clamping is difficult to be performed.

SUMMARY OF THE INVENTION The present invention has been made to solve this problem, and even if the disc is accommodated in one side in the disc receiving portion of the disc tray, the structure is such that the disc can be positioned at a position where the disc can be smoothly clamped at the clamping position. The purpose is to provide an improved disc player.

In order to achieve the above object, a disc player according to the present invention comprises a housing, a disc tray having a disc accommodating portion for accommodating the disc, and a disc tray which can be moved in and out of the housing, and the disc carried by the disc tray into the housing. A turntable and a clamper disposed to face each other in the housing, and a clamper bracket that supports the clamper and is fixed to the housing, wherein the turntable is provided with an insertion portion inserted into a central hole formed in the center of the disc and a tip portion of the insertion portion. In the taper portion, the clamper bracket is in contact with the outer circumferential surface of the disk accommodated in the disk receiving portion when the disk tray enters into the housing, the disk center line of the disk in the direction approaching the center line of the disk receiving portion Boost It is in that the disc pressing portion, provided so as to satisfy the following condition equation is characterized.

<Conditional expression>

R-d <L <R + d

(Where L is the vertical distance from the centerline of the turntable to the disk pressing portion, R is the radius of the disk, and d is the maximum radius of the tapered portion of the turntable minus the minimum radius of the tapered portion.)

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 schematically shows a disc player according to the invention. The disc player includes a housing 10, a disc tray 20 that can move in and out of the housing 10, a turntable 30, and a clamper 40.

The deck plate 11 and the clamper bracket 60 are installed in the housing 10. As shown in FIG. 6, the deck plate 11 is provided with a spindle motor 15, and the turntable 30 is fixed to the shaft of the spindle motor 15. The turntable 30 is provided with the insertion part 31 which can be inserted into the center hole 99 of the disk 9, and the taper part 32 provided in the front-end | tip of the insertion part 31. As shown in FIG. The clamper bracket 60 is fixed to the housing 10 by fixing means such as a screw 19. The clamper bracket 60 is provided with the clamper 40 at a position facing the turntable 30. The clamper 40 is installed to allow rotation and a predetermined range of flow with respect to the clamper bracket 60.

The disc tray 20 is provided with a disc accommodating portion 21 which is inserted in a predetermined depth to accommodate the disc 9. The disc accommodating portion 21 has a diameter slightly larger than the diameter of the disc 9 for smooth receipt and take out of the disc 9. Basically, the center line of the disc accommodating portion 21 in the state where the disc tray 20 is completely immersed into the housing 10 is designed to coincide with the center line of the turntable 30.

On the other hand, in the disc player of the present embodiment, unlike the conventional disc player, the disc pressing portion 61 is formed to protrude from the clamper bracket 60. In the state where the clamper bracket 60 is fixed to the housing 10, the disk pressing portion 61 is located on the movement trajectory of the disk 9 according to the movement of the disk tray 20. As shown in FIG. 7, the vertical distance L from the center line TC of the turntable 30 to the disk pressing portion 61 is a tapered portion at the maximum radius of the tapered portion 32 of the turntable 30. The difference in radius of the tapered portion from the radius R of the disk 9 is less than the value of the radius (taper portion of the tapered portion) d minus the minimum radius of 32; It is larger than minus). This is expressed as follows.

R-d <L <R + d

In such a disc player, a process in which the disc 9 is carried into the housing 10 will be described, taking the case where the disc player is installed in an upright position as an example.

First, as shown in FIG. 3, in the state where the disc tray 20 protrudes from the housing 10, the disc 9 is accommodated in the disc accommodation portion 21 of the disc tray 20. As shown in FIG. At this time, the disk 9 is inclined downward by its own weight in the disk accommodating portion 21 having a diameter slightly larger than the diameter of the disk 9. In this way, the disc 9 accommodated in the disc accommodating portion 21 is prevented from being completely separated from the disc accommodating portion 21 by a well-known release preventing means (not shown).

In the state where the disc 9 is accommodated in the disc accommodating portion 21 as described above, the disc tray 20 enters into the housing 10 by a motor (not shown) in the housing. As such, while the disc tray 20 enters the housing 10, the lower outer circumferential surface of the disc 9 in a state in which the disc tray 20 is lowered in the disc accommodating portion 21 is shown in FIG. 4. 61). The disc tray 20 continues to enter the housing 10 thereafter, while the disc 9 is pushed by the disc pressing portion 61 in contact with the lower outer circumferential surface thereof, the center line of which is the disc receiving portion. It is displaced upward in the direction approaching the center line of (21). As a result, as shown in FIGS. 5 and 6, in the state where the disc tray 20 is completely entered into the housing 10 and the disc 9 is located between the turntable 30 and the clamper 40, the disc The center line DC of the disk accommodating portion 21 is adjacent to the center line of the disk receiving portion 21, that is, the center line TC of the turntable 30, the minimum diameter portion of the tapered portion 32 of the turntable 30, that is, the tapered portion 32 The tip of is positioned in the area that can be inserted into the central hole 99 of the disk (9).

When the disk 9 is located between the turntable 30 and the clamper 40, the turntable 30 approaches the clamper 40 with the deck plate 11 by a drive means (not shown) in the housing 10. The disk clamping which closely supports the disk 9 with the clamper 40 is performed. At this time, as described above, the center line DC of the disk and the center line TC of the turntable 30 substantially coincide so that the tip of the tapered portion 32 of the turntable 30 is the central hole 99 of the disk 9. Since the taper portion 32 of the turntable 30 is inserted into the central hole 99 of the disk 9, the disk 9 is coaxially with the turntable 30. To be positioned. Accordingly, the insert 31 of the turntable 30 is reliably inserted into the central hole 99 of the disk 9 so that the disk 9 can be clamped accurately. The clamped disc 9 is rotated together with the clamper 40 when the turntable 30 is rotated by the spindle motor 15.

In the present embodiment, the disk pressing portion 61 is formed and described only on one side of the clamper bracket 60, that is, only on the lower side in FIG. However, in view of the case where the disc player is installed in a position opposite to that shown in Figs. 3 to 6, the above-described disc pressing portions may be formed on both sides of the clamper bracket, of course.

As described above, in the disc player according to the present invention, the disc pressing portion is provided in the clamper bracket for supporting the clamper, and the disc pressing portion carries the disc carried by the disc tray when the disc tray is inserted into the housing. Since the minimum diameter portion of the tip of the turntable is located in the area of the center hole of the disk by pushing toward the centerline side of the receiver, clamping of the disk carried into the housing can be performed accurately.

Claims (1)

A disk tray having a housing, a disk accommodating part for accommodating the disk, and a disk tray which can be moved in and out of the housing; And a clamper bracket fixed to the housing, wherein the turntable includes an insertion portion inserted into a central hole formed at the center of the disc and a taper portion provided at a distal end of the insertion portion. The clamper bracket includes a disk pressing portion for contacting the outer circumferential surface of the disk accommodated in the disk accommodation portion when the disk tray enters the housing and pushing the disk in a direction in which the center line of the disk approaches the center line of the disk accommodation portion. And a disc player installed to satisfy the following conditional expression. <Conditional expression> R-d <L <R + d (Where L is the vertical distance from the centerline of the turntable to the disk pressing portion, R is the radius of the disk, and d is the maximum radius of the tapered portion of the turntable minus the minimum radius of the tapered portion.)

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