JP2004055006A - Disk loading mechanism and disk player - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk loading mechanism for a disk player capable of handling a disk with a simple operation. <P>SOLUTION: The disk loading mechanism for a disk player includes a turntable to set a disk thereon, an opening, and a disk mounting base formed below the opening to include the turntable. The disk mounting base can be lowered. The conventional burdensome work of an operator to hold a disk for a while to set it is eliminated and the disk treatment is made easier. Thus, the chance of damaging a disk surface is greatly reduced. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention discloses a disc loading technique that can be suitably used for a disc player that records information using a disc such as a CD-ROM, a CD-R, a CD-RW, and a DVD-ROM, and reproduces the information. In particular, the present invention relates to a disc loading mechanism capable of suppressing damage to a disc and simplifying handling of the disc.
[0002]
[Prior art]
In recent years, disks such as CDs have become widespread as information recording media. Furthermore, compact desktop or portable disc players are also widely used. A conventional disk player has a turntable 6 inside a housing 5 as shown in FIG. 1, for example. The turntable 6 is rotated by a spindle motor (not shown), and a disk support 8 having a ball bearing 7 for holding a disk is provided at an upper portion thereof. The hole 2 at the center of the disk 1 is set in the disk support portion 8. As an actual operation, the operator pushes the disc 1 against the ball bearing 7 while aiming so that the position of the hole 2 matches the position of the disc support portion 8.
[0003]
[Problems to be solved by the invention]
As described above, when handling a disc with a conventional disc player, the operator presses the disc 1 while assuming the position of the disc support 8. Here, if there is a misalignment between the hole 2 of the disk 1 and the disk support portion 8, the disk 1 cannot be set on the disk support portion 8 successfully. Therefore, the operator repeats the operation of pushing the disc 1 while searching for the position where the hole 2 of the disc 1 fits into the disc support portion 8. However, if the operation of searching for a position where the hole 2 of the disk 1 coincides with the disk support portion 8 is performed as described above, the surface of the disk 1 hits the disk support portion 8 or the like and is damaged.
[0004]
Further, it takes a considerable force to push the ball bearing 7 into the hole 2 of the disk 1. Furthermore, if the turntable 6 on which the disk support 8 is formed rotates, the above-described disk setting operation becomes more difficult. Therefore, it is difficult for a young person or an elderly person to reliably set the disc 1 in the disc player.
[0005]
Further, in a conventional disk player, an optical device 3 for reading or recording information from the disk 1 is often exposed on the housing 5 as shown in FIG. Therefore, when setting the disc 1 as described above, a situation may occur in which the operator touches the optical device 3 by mistake. In particular, touching the lens 4 of the optical device 3 with the hand causes troubles in reproduction and recording. As described above, the conventional disk player has many problems.
[0006]
Accordingly, it is a main object of the present invention to provide a disc loading mechanism for a disc player which can handle a disc with a simple operation, and a preferable disc player provided with such a loading mechanism.
[0007]
[Means for Solving the Problems]
2. A disk loading mechanism for a disk player, comprising: a turntable on which a disk is set; and a disk mounting table having an opening and including the turntable below the opening. And
This is achieved by a disk loading mechanism in which the disk mounting table is set to be able to descend.
[0008]
According to the first aspect of the present invention, since the disk mounting table can be lowered, the disk can be set on the turntable when the disk mounting table on which the disk is mounted is lowered. This eliminates the inconvenience of setting the disc by holding the disc for a long time as in the related art, and improves operability. This can also greatly reduce the chances of the disk surface being damaged.
[0009]
According to a second aspect of the present invention, in the disk loading mechanism according to the first aspect, the disk mounting table is lowered to the turntable position in conjunction with the operation of the disk player, and the disk loading mechanism is moved to the turntable position. Is desirably set so as to rise to the initial position in conjunction with the above operation.
[0010]
Further, as set forth in claim 3, in the disc loading mechanism according to claim 2, the disc mounting table is lowered to the turntable position in conjunction with a closing operation of a lid provided on the disc player, It may be set so as to rise and return to the initial position in conjunction with the opening operation of the lid.
[0011]
According to the second and third aspects of the present invention, it is possible to easily move the disk mounting table up and down without being conscious, simply by the operator opening and closing the lid of the disk player. Therefore, the disk mounting table can be lowered by interlocking with the lid of a desktop or portable disk player. As described above, the present invention can be suitably applied to a compact type player, but is not limited thereto. For example, if the disc player is of the type housed in a notebook computer, the disc player housing may be configured to move the disc mounting table up and down in conjunction with the operation of the disc player moving in and out of the personal computer body. Good.
[0012]
According to a fourth aspect of the present invention, in the disk loading mechanism according to the second or third aspect, the disk contact surface of the disk mounting table is so soft that the disk is not damaged and contacts the disk when the disk is ejected. It is more preferable to provide a material serving as a brake.
[0013]
According to the fourth aspect of the present invention, the disk can be reliably stopped without damaging the disk even when the disk is rotating when the disk mounting table returns to the initial position. Therefore, whenever the operator handles the disc, the disc can be kept in a non-rotating state.
[0014]
According to a fifth aspect of the present invention, in the disk loading mechanism according to any one of the first to fourth aspects, the disk mounting table has a peripheral portion for defining the disk at a predetermined position. Is desirable.
[0015]
According to the fifth aspect of the present invention, the peripheral portion is formed so that the hole of the disk is centered and is on the turntable, and the predetermined position is determined. Therefore, the operator can easily set the disc at an appropriate position.
[0016]
The object is to provide a housing having an open upper surface, a disk mounting table arranged to be vertically movable with respect to the housing, and an opening formed in the disk mounting table. A disc player including a turntable on which a disc is set and a lid rotatably attached to the housing,
The disk mounting table is also achieved by a disk player which is set so as to descend to the turntable position in conjunction with the closing operation of the lid and to return to the initial position in conjunction with the opening operation of the lid. Is done.
[0017]
According to the sixth aspect of the present invention, since the disk mounting table can be lowered, it is possible to provide a disk player with improved operability without the trouble of the operator holding the disk for a long time as in the related art. it can. Further, such a disk player can surely prevent the surface of the disk from being damaged.
[0018]
According to a seventh aspect of the present invention, in the disk player according to the sixth aspect, an optical device used for reading information from and / or writing information to the disk is provided at a position where the disk mounting table is lowered. It is more preferable to be provided in the.
[0019]
In the invention described in claim 7, since the optical device is located below the disk mounting table, the operator does not touch the optical device when exchanging the disk or the like. Therefore, it is possible to reliably suppress the function of the disc player from being reduced.
[0020]
According to an eighth aspect of the present invention, in the disk player according to the sixth or seventh aspect, a pulley is disposed on an inner wall of the lid at a position corresponding to the turntable, and the lid is closed. At this time, a configuration in which the disk is held by the turntable and the pulley can be adopted.
[0021]
According to a ninth aspect of the present invention, in the disk player according to the eighth aspect, the disk may be rotatably held by magnetic coupling between the turntable and the pulley.
[0022]
According to the eighth and ninth aspects of the invention, the disk can be rotated while securely holding the disk on the turntable.
[0023]
According to a tenth aspect of the present invention, in the disk player according to the sixth aspect, the disk contact surface of the disk mounting table is soft enough to prevent the disk from being damaged and comes into contact with the disk when the disk is ejected. It is more preferable to provide such a material.
[0024]
According to the tenth aspect of the present invention, the disc is not rotated at all times when the operator handles the disc, so that the disc player is more preferable.
[0025]
Further, in the disk player according to any one of the sixth to tenth aspects of the present invention, it is more preferable that the disk mounting table has a peripheral portion for defining the disk at a predetermined position.
[0026]
According to the eleventh aspect of the present invention, a preferable disc player in which the operator can easily center and set the disc.
[0027]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to the drawings. First, a preferred embodiment of the present invention will be outlined based on FIG. FIG. 2 is a diagram schematically showing a disc loading mechanism of the disc player. (A) shows a state where the disk mounting table 10 on which the disk 1 is mounted is at the initial position, and (B) shows a case where the disk mounting table 10 is at a position lowered from the initial position.
[0028]
As shown in FIGS. 2A and 2B, the disk mounting table 10 of the present invention is designed to be able to descend as indicated by an arrow Y. An example of a mechanism for lowering the disk mounting table 10 will be described in an embodiment described later. (A) shows a state in which the operator sets or removes the disc 1. For example, this state is established when the lid of the disc player is opened. In the initial state of (A), the turntable 12 for rotating the disk 1 and the disk holder 18 formed thereon are located below the disk mounting table 10. Further, an optical device 13 for reading or recording information from the disk 1 is also arranged below the disk mounting table 10.
[0029]
An opening 11 is formed in the center of the disk mounting table 10. The turntable 12 is arranged so as to fit inside the opening 11. Therefore, even if the disk mounting table 10 descends, the disk mounting table 10 and the turntable 12 do not interfere with each other. When the disk mounting table 10 is lowered, a state where the disk 1 is mounted on the turntable 12 can be formed as shown in FIG.
[0030]
Reference numeral 19 denotes a pulley that contacts the disk 1 from above. The pulley 19 is disposed, for example, inside a disk player cover.
[0031]
With the above configuration, the disc mounting table 10 can be designed to move down in conjunction with the closing operation of the disc player lid, and to rise (return) to the initial position in conjunction with the opening operation of the lid. Thus, the disc 1 can be placed on the turntable 12. Further, as a preferred embodiment of the present invention, a peripheral portion 10SUR for positioning is provided on the disk mounting table 10. The position of the opening 2 of the disk 1 can be centered by the peripheral portion 10SUR to correspond to the position of the pulley 19. Further, when the taper portion TAP is formed in the disk holding portion 18, the disk 1 can be set on the disk holding portion 18 more accurately. Also, by forming one of the disk holding portion 18 and the pulley 19 with a magnetic material and the other with a Ni, Fe, Co-based magnetic metal or the like, the disk 1 can be securely clamped by utilizing magnetic force. it can.
[0032]
Further, as shown in FIG. 2 (B), the surface of the disk mounting table 10 in contact with the disk 1 is soft enough to prevent the disk from being damaged, and a material (cushion material) which comes into contact with the disk when the disk is ejected and serves as a brake It is desirable to provide. By using such a cushion material, when returning from the state of FIG. 2B to the state of FIG. 2A, the rotation of the disk 1 can be reliably stopped. Therefore, when the operator tries to touch the disk 1, a state where the disk 1 is always stopped can be formed.
[0033]
As described above, according to the preferred embodiment of the present invention, the operator simply completes the operation of simply placing the disk on the disk mounting table 10. Therefore, it is not necessary for the operator to perform operations such as positioning while holding the disc by hand as in a conventional disc player. Therefore, even a young person or an elderly person can easily set the disc. Further, it is possible to reliably suppress a situation where the disk surface is damaged.
[0034]
[Example]
In the following, an embodiment in which the loading mechanism having the above configuration is applied to a desktop disc player will be described with reference to the drawings. Parts corresponding to the parts shown in FIG. 2 are denoted by the same reference numerals.
[0035]
FIG. 3 is a perspective view showing the entire disc player. (A) shows a state where the lid 30 of the player is open, and (B) shows a state where the lid 30 of the player is closed. 1A shows a state where the disk 1 is mounted inside the disk mounting table 10. The disc mounting table 10 is set so that it can be lowered with respect to the housing 20 of the disc player. To explain this point in more detail, a link plate 31 is rotatably connected to the lid 30. The link plate 31 extends to the side of the housing 20 via the long hole 17 formed in the disk mounting table 10. A cam plate (not shown) is disposed on the side of the housing 20, and the other end of the link plate 31 is connected to the cam plate. Then, when the lid 30 is closed, the link plate 31 enters the long hole 17 and moves the cam plate to lower the disk mounting table 10. This lowering mechanism will be described in detail with reference to FIGS.
[0036]
FIGS. 4A and 4B are diagrams showing the side structure of the disc player so that the relationship between the link plate 31 and the cam plate can be confirmed. FIG. 4A shows a state in which the cover 30 is open, and FIG. Indicates a closed state. As can be seen from the figure, the cam plate 24 has a long plate shape and is arranged along the side of the housing 20. An elongated hole 26 is formed in the cam plate 24, and the other end 32 of the link plate 31 is movably fitted in the elongated hole 26. Therefore, when the lid 30 is closed as shown in FIG. 3B, the link plate 31 moves the cam plate 24 in the direction of arrow F (rightward in the figure).
[0037]
The cam plate 24 includes cam portions 25FR and 25BK that are inclined forward and rearward. Further, the housing 2 is provided with ribs 21FR, 21BK standing upright along the side wall, and the disc mounting table 10 is formed with guide grooves 22FR, 22BK for receiving the ribs 21FR, 21BK. The mechanism for lowering the disk mounting table 10 according to the present embodiment is realized by these components.
[0038]
FIG. 5 is an exploded view showing the inside of the disk player so that the lowering mechanism of the disk mounting table 10 can be easily checked. FIG. 5 shows the internal space of the housing 20 and the bottom surface of the disk mounting table 10 so as to be visible. FIG. 5 also clearly shows the shape of the cam plate 24. The mechanism for lowering the disk mounting table 10 is provided symmetrically to the left and right, but the same is true. Therefore, only the mechanism on the right side as viewed in the direction of arrow X in FIG. 5 is shown. A notch 16 formed in the disk mounting table 10 indicated by reference numeral 16 is formed in a range where the optical device 3 moves. By providing the notch 16, the disk mounting table 10 can be lowered without interfering with the optical device 3.
[0039]
Further, a state in which the disk mounting table 10 moves up and down with respect to the housing 20 will be described with reference to FIGS. FIG. 6 is a view showing a state where the housing 20 and the disk mounting table 10 are combined except for the cam plate 24 in particular. Since the positions of the ribs 21FR and 21BK of the housing 20 correspond to the guide grooves 22FR and 22BK of the disk mounting table 10, the disk mounting table 10 is placed in the housing 20 as shown in FIGS. Can descend to fit. FIG. 6 shows an enlarged view of the circle S of the rib 21FR and the guide groove 22FR so that the state of the rib 21 and the guide groove 22 can be easily checked. The same applies to FIGS. 7 and 8 below.
[0040]
FIG. 7 is a diagram showing the relationship between the guide groove 22 of the disk mounting table 10 and the moving cam plate 24, especially excluding the case 20 side. As described above, the cam plate 24 is pushed rightward by the other end 32 of the link plate 31. Accordingly, the cam portions 25FR and 25BK move, so that the initially hidden guide grooves 22FR and 22BK gradually overlap with the cam portions 25FR and 25BK, and finally the guide grooves 22FR and 25BK as shown in (C). A state where all of 22FR and 22BK appear is formed.
[0041]
FIG. 8 is a superimposition of FIG. 6 and FIG. That is, with the movement of the cam plate 24, the cam portions 25FR and 25BK are sequentially exposed in the guide grooves 22FR and 22BK. Since the ribs 21FR and 21BK are located below the guide grooves 22FR and 22BK, a state where the ribs 21FR and 21BK slide sequentially into the guide grooves 22FR and 22BK is formed. Therefore, the disk mounting table 10 descends with respect to the housing 20 as the cam plate 24 moves.
[0042]
As described above, since the cam plate 24 is moved by the link plate 31 that moves with the opening and closing of the lid 30, a mechanism for lowering the disk mounting table 10 by opening and closing the lid 30 is realized.
[0043]
FIG. 9 is a diagram showing a side configuration of a disk player according to the embodiment in which the disk 1 is mounted on the disk mounting table 10. (A) shows a state where the lid 30 is open, and (B) shows a state where the lid 30 is closed. As can be seen from the figure, when the state changes from (A) to (B), the disk mounting table 10 descends. As a result, the relative position of the turntable 12 rises, so that the turntable 12 protrudes from the upper surface of the disk mounting table 10 so that the disk 1 can be held by the disk holding unit 18. When the lid 30 is completely closed, the disk 1 can be reliably held by the magnetic coupling force between the disk holding portion 18 and the pulley 19.
[0044]
When the disk 1 is taken out, the reverse operation from (B) to (A) is executed by opening the lid 30. When the disk mounting table 10 returns to the initial position, the disk 1 comes into surface contact with the disk 1. Therefore, the surface of the disk mounting table 10 side is formed of a rubber material or the like to stop the rotation when the disk 1 is pushed up. be able to.
[0045]
As described above, the loading mechanism of the present invention can be suitably employed as a loading mechanism for a desktop or portable disc player having a lid on the main body. However, the present invention is not limited to this, and in the case of a disc player or the like stored in a notebook computer, the lid is opened when the housing is pulled out of the personal computer, and the lid is pressed when the housing is pushed into the personal computer. It can be easily understood that the same effect can be obtained by replacing the closed state.
[0046]
Although the preferred embodiment of the present invention has been described in detail, the present invention is not limited to the specific embodiment, and various modifications and changes may be made within the scope of the present invention described in the appended claims. Changes are possible.
[0047]
【The invention's effect】
As is clear from the above description, according to the present invention, since the disk mounting table can be lowered, the disk can be set on the turntable when the disk mounting table on which the disk is mounted is lowered. This eliminates the inconvenience of setting the disc by holding the disc for a long time as in the related art, and improves operability. This can also greatly reduce the chances of the disk surface being damaged.
[Brief description of the drawings]
FIG. 1 is a diagram showing a schematic configuration of a conventional disc player.
FIG. 2 is a diagram schematically showing a disk loading mechanism according to a preferred embodiment.
FIG. 3 is a perspective view showing the entire disc player of the embodiment.
FIG. 4 is a diagram showing a side configuration of the disc player so that a relationship between a link plate and a cam plate of the disc player of the embodiment can be confirmed.
FIG. 5 is a diagram showing the internal space of the housing of the disk player of the embodiment and the bottom surface of the disk mounting table so as to be visible.
FIG. 6 is a diagram showing a state where the housing and the disk mounting table are combined except for a cam plate.
FIG. 7 is a diagram showing a relationship between a guide groove of a disk mounting table and a moving cam plate except for a case side.
FIG. 8 is a view in which FIGS. 6 and 7 are superimposed.
FIG. 9 is a diagram showing a side configuration of a disk player according to an embodiment in which a disk is mounted on a disk mounting table.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Disk 2 hole 10 Disk mounting table 10 Peripheral part 11 Opening 12 Turntable 13 Optical device 18 Disk holding part 19 Pulley 20 Housing 30 Cover part

Claims (11)

A disc loading mechanism for a disc player including a turntable on which a disc is set, and a disc mounting table having an opening and including the turntable below the opening,
A disk loading mechanism, wherein the disk mounting table is set to be able to descend. 2. The disc loading mechanism according to claim 1, wherein the disc mounting table descends to the turntable position in conjunction with the operation of the disc player, and rises to an initial position in conjunction with the operation of the disc player. A disk loading mechanism characterized by being set as follows. 3. The disk loading mechanism according to claim 2, wherein the disk mounting table descends to the turntable position in conjunction with a closing operation of a lid provided on the disk player, and moves to an initial position in association with an opening operation of the lid. A disk loading mechanism characterized in that it is set to return to a raised position. 4. The disk loading mechanism according to claim 2, wherein a material that is soft enough to prevent the disk from being damaged and that comes into contact with the disk when the disk is ejected to form a brake is provided on the disk contact surface of the disk mounting table. Disc loading mechanism. 5. The disk loading mechanism according to claim 1, wherein the disk mounting table has a peripheral portion for defining the disk at a predetermined position. A housing having an open upper surface, a disk mounting table arranged to be vertically movable with respect to the housing, and a turntable on which a disk is set, which is disposed below an opening formed in the disk mounting table, A disc player including a lid rotatably attached to the housing,
The disc mounting table is set so as to descend to the turntable position in conjunction with the closing operation of the lid, and to return to the initial position in conjunction with the opening operation of the lid. Disc player. 7. The disc player according to claim 6, wherein an optical device used for reading information from and / or writing information to the disc is disposed at a position where the disc mounting table is lowered. Disc player to do. 8. The disc player according to claim 6, wherein a pulley is arranged on an inner wall of the lid at a position corresponding to the turntable, and the disc is held by the turntable and the pulley when the lid is closed. A disc player, characterized by holding a disc. 9. The disk player according to claim 8, wherein the disk is rotatably held by magnetic coupling between the turntable and the pulley. 7. The disk player according to claim 6, wherein the disk contact surface of the disk mounting table is provided with a material which is soft enough not to damage the disk and which comes into contact with the disk when the disk is ejected to act as a brake. Player. 11. The disk player according to claim 6, wherein the disk mounting table has a peripheral portion for defining the disk at a predetermined position.

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