JP2003248997A - Disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the change of vibration characteristics by an installation direction of a disk device. <P>SOLUTION: In the disk 11, a tray 20 is slidably supported inside of a shield cover 16. The tray 20 is supported slidably by tray guide mechanisms 30, 32 supported by a left hand side face 64 and a right hand side bottom face 60 of the shield cover 16, and is moved to a disk exchange position and a disk mounting position by manual operation. The first tray guide mechanism 30 disposed at a left side of the tray 20 is set in a direction in which a sliding area becomes larger in a longitudinal direction, and the second tray guide mechanism 32 disposed at a right side of the tray 20 is set in a direction in which a sliding area becomes larger in a lateral direction. Therefore, the disk device 11 is allowed to support the tray 20 under the same condition in either horizontally disposed or vertically disposed. Consequently, reliability to the vibration can be raised by preventing the change of vibration characteristics in accordance with the mounting directions. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc device, and more particularly to a disc device provided with a tray on which a disc-shaped recording medium is mounted so as to be movable to a recording / reproducing mounting position.

[0002]

2. Description of the Related Art As a conventional disk device, for example, there is a CD-ROM device configured to be mounted on a notebook personal computer or the like. This kind of CD-R
In the OM device, the width of the tray on which the disc-shaped recording medium is mounted is made smaller than the diameter of the disc-shaped recording medium (hereinafter, simply referred to as “disc”) so that the personal computer can be made thinner and lighter. ing.

An example of this type of CD-ROM device is a metal frame 1 as shown in FIG. 1 (A).
The tray 3 is slidably supported in the tray housing portion 2, and a turntable 4 for clamping a disc is provided on the upper surface of the tray 3. Further, inside the tray 3, a motor for rotating the turntable 4 (which is hidden behind the turntable and cannot be seen) and an optical pickup 5 for reading information recorded on the disc are provided.

The tray 3 has a lock mechanism (not shown) when an eject button (not shown) provided on a front bezel 6 attached to the front surface of the tray 3 is pressed.
The lock is released by and it becomes possible to move in the eject direction. Further, the tray 3 is formed such that the width dimension thereof is smaller than the diameter (12 cm) of the disc.

A protruding portion 8 of the frame 1 is formed on the side of the tray housing portion 2 so as to face the protruding portion of the disk protruding from the tray 3 in a crescent shape. In addition, the tray 3 stored in the tray storage unit 2
The upper portion of the projecting portion 8 of the frame 1 is covered with a sheet metal cover (not shown).

The disc clamped on the turntable 4 is mounted so as to face the upper surface 3a of the tray 3 and the projecting portion 8, and is rotationally driven in the space covered by the cover.

As shown in FIG. 1B, the tray 3
Is supported slidably on the left and right sides by the tray guide mechanism 9. The tray guide mechanism 9 is mounted so as to be interposed between the left and right side surfaces of the frame 1 and the tray 3.

The tray guide mechanism 9 includes a guide rail 9a fixed to the side surface of the tray 3 and a guide rail 9
It is composed of a slide rail 9b having a C-shaped cross section so as to slide along a and a guide rail 9c formed in a C-shape so as to surround the slide rail 9b. The tray guide mechanism 9 is slidably supported by a pair of tray guide mechanisms 9 provided on the left and right side surfaces of the tray 3 when the disc device is used in a horizontal state.

[0009]

However, in the disc device constructed as described above, the pair of tray guide mechanisms 9 provided on the left and right side surfaces of the tray 3 are provided in the same direction, so that the disc device is The ground contact area of the pair of tray guide mechanisms 9 is small when installed horizontally, and the ground contact area of the pair of tray guide mechanisms 9 is large when the disk device is installed vertically.

An optical pickup is mounted on the tray 1, and precise optical parts such as a laser diode, a reflecting mirror, an objective lens, etc. are provided. Therefore, if the support structure of the tray 3 differs depending on the orientation of the disc device,
Since the vibration characteristic (resonance frequency) changes, the tray 1 has the same vibration characteristic regardless of the orientation of the disk device.
Can't support.

Therefore, in the conventional configuration, depending on the orientation of the disk device, the vibration characteristic may be stable or the vibration characteristic may be unstable, which causes the reliability of the disk device to be impaired.

Therefore, an object of the present invention is to provide a disk device which solves the above problems.

[0013]

In order to solve the above problems, the present invention has the following features.

The invention according to claim 1 is a tray having a turntable on which a disk-shaped recording medium is mounted,
A first tray guide mechanism for movably supporting one side of the tray between a disc exchange position and a disc mounting position;
A second tray guide mechanism for movably supporting the other side of the tray between a disc exchange position and a disc mounting position;
In a disk device comprising: a first tray guide mechanism or a second tray guide mechanism, one of the first tray guide mechanism and the second tray guide mechanism is vertically provided, and the other of the first tray guide mechanism and the second tray guide mechanism is provided. Since it is installed horizontally, it is possible to support the tray under the same conditions whether the disk device is installed horizontally or vertically, and the vibration characteristics change depending on the mounting direction of the disk device. Can be prevented and reliability can be improved.

The invention according to claim 2 is characterized in that, between the tray guide mechanism, which is horizontally arranged, of the first tray guide mechanism or the second tray guide mechanism, and a supporting portion which supports the tray guide mechanism. Since a flexible wiring board is interposed, it is possible to prevent the vibration characteristics from changing depending on the mounting direction of the disk device to improve reliability, and save space in the installation of the flexible wiring board to reduce the size of the device. It is possible to deal with

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a perspective view showing an embodiment of the disk device according to the present invention. FIG. 3 is a longitudinal sectional view of an embodiment of the disk device according to the present invention as seen from the front.

As shown in FIGS. 2 and 3, the disk device 11 is, for example, a CD-ROM or CD-R, C.
It is a drive device in which a disk-shaped recording medium such as a D-RW, a DVD-ROM, a DVD-RAM is mounted, and a tray 20 is slidably supported inside a shield cover 16. Further, in the disc device 11, the optical disc 22 (shown by a chain line) is placed on the tray 20, and
When is moved to the mounting position (direction B), the tray 20 is housed inside the shield cover 16 to record or reproduce information.

The tray 20 includes a turntable 18 for clamping and rotating the optical disk 22, and an optical disk 2.
2 has an optical pickup 26 movably provided in the radial direction for recording information on the optical disc 22 or for optically reading the information recorded on the optical disc 22.

The turntable 18 is the disk 2
It has a clamp mechanism 23 that fits in the center hole of 2 and clamps the disk 22 from the inner circumference. A disk housing portion 24 having a diameter larger than that of the optical disk 22 is formed around the turntable 18.

Further, below the disc storage portion 24,
An optical pickup 26 for reading information recorded on the disc 22 clamped by the clamp mechanism 23 of the turntable 18 is attached so as to be movable in the disc radial direction. The tray 20 is thinly formed in the right end portion, except for the movement range of the turntable 18 and the optical pickup 26. This allows the tray 20
A space 61 is formed between the right end of the flexible wiring board 14 and the bottom surface 60 of the shield cover 16 in the U-shaped bent state.

A flexible wiring board 14 is provided between the connector 12 (shown by broken lines in FIG. 2) provided on the shield cover 16 and the connector 13 (shown by broken lines in FIG. 2) attached to the lower surface of the tray 20. (Indicated by a broken line in FIG. 2). The flexible wiring board 14 is connected to the turntable drive motor 25 and the optical pickup 26 via the connector 13.

The flexible wiring board 14 includes a first wiring board 15 connected to the fixed-side connector 12, a second wiring board 17 connected to the movable-side connector 13, and a first wiring board 15. It has the 3rd wiring board 19 which connects with the 2nd wiring board 17.

The second wiring board 17 extends in the B direction from the third wiring board 19, but is bent in a U shape in the middle, and its end is attached to the lower surface of the tray 20. Connected to the connector 13. Therefore, the second wiring board 17 of the flexible wiring board 14 is provided such that its bent portion moves in the A and B directions as the tray 20 moves.

The tray 20 has a shield cover 16
Is supported slidably in the A and B directions by the tray guide mechanisms 30 and 32 supported by the left side surface (first tray supporting portion) 64, the right side surface 66, and the right side bottom surface (second tray supporting portion) 60. The disk is manually moved to the disc replacement position or the disc mounting position. Therefore, the disk device 1
1, the tray guide mechanisms 30, 32 are not supported by the frame as in the conventional case, but the shield cover 16 is used.
Since the structure is supported by, the cumulative value of the dimensional tolerance of each member can be reduced, and the clearance between the tray 20 and the shield cover 16 can be reduced. It is possible to reduce the thickness.

The flexible wiring board 14 is fixed so that the first wiring board 15 is interposed between the right side bottom surface 60 of the shield cover 16 and the tray guide mechanism 32, and the right side bottom surface 60 and the disc of the tray 20 are fixed. The second wiring board 17 is accommodated in a space 61 formed between the accommodation part 24 and the accommodation part 24 in a U-shaped bent state. Therefore, the flexible wiring board 14 is housed in the space 61 outside the mounting position of the turntable 18 and the movement range of the optical pickup 26 where the height dimension is the limit value, so that the disk device 11 can be made thinner. Can contribute to.

The first tray guide mechanism 30 arranged on the left side of the tray 20 is provided in a direction in which the sliding area increases in the vertical direction, and the second tray guide mechanism arranged on the right side of the tray 20. 32 is provided in a direction in which the sliding area increases in the lateral direction.

The first tray guide mechanism 30 is mounted in a vertical state, and has a guide rail 34 having a T-shaped cross section fixed to the left side surface of the tray 20 and a left side surface of the guide rail 34. A sliding rail 36 whose cross section is formed in a C shape so as to slide along the vertical protrusion and a C shape which is fixed to the shield cover 16 and surrounds the left side surface and the upper and lower end portions of the sliding rail 36. Guide rail 3 formed on
It is composed of 8 and.

The second tray guide mechanism 32 is the same as the first tray guide mechanism 32.
Is mounted in a horizontal state in which the orientation is different by 90 ° from the tray guide mechanism 30 of FIG. A sliding rail 42 having a C-shaped cross section for movement, and a guide rail fixed to the shield cover 16 and having a C-shape so as to surround the lower surface and the left and right ends of the sliding rail 42. And 44.

When the eject switch button 48 provided on the front bezel 46 is pressed, the tray 20 is unlocked by a lock mechanism (not shown) and pushed out in the direction A by a predetermined distance. As a result, the operator manually pulls out the front bezel 46 in the A direction, whereby the tray 2 guided by the tray guide mechanisms 30 and 32 is guided.
0 slides in the direction A, and the disc storage portion 24 comes out of the shield cover 16 to reach the exposed disc exchange position.

Therefore, when the disk device 11 is in the horizontal state, the ground contact area of the second tray guide mechanism 32 is larger than that of the first tray guide mechanism 30. Further, in the disk device 11, when in the vertical state, the first tray guide mechanism 30 is better than the second tray guide mechanism 32.
Has a larger ground contact area.

Further, the total of the ground contact areas of both tray guide mechanisms 30 and 32 is configured to be substantially equal in the horizontal state and the vertical state. Therefore, tray 2
0 is slidably supported under substantially the same conditions by the tray guide mechanisms 30 and 32 in either a horizontal state or a vertical state, and therefore the turntable 18 and the optical pickup 26 mounted on the tray 20 depending on the orientation of the disk device 11. It is possible to improve the vibration characteristics of the structure that supports the.

Therefore, the disk device 11 can support the tray 20 under the same condition whether it is installed horizontally or vertically, and prevents the vibration characteristics from changing depending on the mounting direction. The reliability against vibration can be improved.

Further, since the height dimensions of the turntable drive motor 25 and the optical pickup 26 are reduced to the limit, the thickness of the turntable 18 and the optical pickup 26 is further reduced. It is difficult to make it. Therefore, in the disk device 11, the shield cover 1 facing the lower surface of the tray 20 is provided.
An opening 50 is formed in the area of 6. Then, a shield plate 52 formed in a shape corresponding to the opening 50 is fixed to the lower surface of the tray 20.

The turntable drive motor 25 and the optical pickup 26 are protected by the shield cover 16 and the shield plate 52 so as not to be affected by electromagnetic waves. Further, the right bottom surface 60 of the shield cover 16
The shield plate 52 and the shield plate 52 are arranged in the C and D directions and arranged so as not to overlap in the height direction, which contributes to the reduction in thickness.

FIG. 4 is a plan view of the disk device 11.
FIG. 5 is a front view of the disk device 11. FIG. 6 is a rear view of the disk device 11. FIG. 7 is a right side view of the disk device 11. FIG. 8 is a bottom view of the disk device 11.

As shown in FIGS. 4 to 8, the tray 2
In the disk device 11 in which 0 is stored inside the shield cover 16, only the front bezel 46 is in a disk mounted state in which the front bezel 46 is exposed to the front side of the shield cover 16, and the optical disk 22 mounted on the turntable 18 is exposed to light. The pickup 26 reads information or writes information.

The front bezel 46 has a lens 54 of an LED (light emitting diode) which blinks when the turntable 18 is being driven, and when the tray 20 cannot be ejected even if the eject switch button 48 is pressed. An insertion hole 56 for emergency eject operation for inserting a wire such as a clip to unlock the tray 20 is provided.

Further, when viewed from the front, the front bezel 46 has a height Hb of the areas 46b, 46c near the left and right side surfaces of the area 46a covering the mounting position of the turntable 18 and the moving range of the optical pickup 26, It is formed so that Hc becomes small. Therefore, the front bezel 46
The regions 46b and 46c except the region 46a are thin, and the region 46a projects downward from the left and right regions 46b and 46c by a difference of Ha-Hb and Ha-Hc.

Fixed portions 58 fixed to the frame of a personal computer (not shown) project horizontally in the left and right side surfaces and the bottom portion of the back surface of the shield cover 16.

The bottom surface of the disk device 11 is formed by a right bottom surface 60 integrally formed with the shield cover 16 and a shield plate 52 attached to the lower surface of the tray 20. Right side bottom surface 60 of the shield cover 16
Corresponds to the area 46c on the right side of the front bezel 46, and is formed so that the height dimension thereof is smaller than the mounting position of the shield plate 52.

The shield plate 52 is formed so as to cover the mounting position of the turntable 18 and the lower part of the moving range of the optical pickup 26, and is fastened by a plurality of screws 62. Further, since the shield plate 52 is pressed into a shape that bulges downward so as to correspond to the region 46a of the front bezel 46, when viewed from below, it corresponds to the mounting position of the turntable 18 and the movement range of the optical pickup 26. The front region 52a is thicker than the rear region 52b, and a step 52c is formed at the boundary between the front region 52a and the rear region 52b.

Now, the structure of the shield cover 16 will be described.

FIG. 9 is a plan view of the shield cover 16. FIG. 10 is a front view of the shield cover 16. Figure 1
1 is a rear view of the shield cover 16. FIG. 12 is a right side view of the shield cover 16. FIG. 13 is a bottom view of the shield cover 16.

As shown in FIGS. 9 to 13, the shield cover 16 includes an upper surface 62 that covers the disk storage portion 24 of the tray 20 and left and right side surfaces 64 and 66 that are bent downward from the left and right ends of the upper surface 62. , The rear surface 68 bent downward from the rear end of the upper surface 62 and the lower end of the right side surface 66 from the tray 2
0 and the right bottom surface 60 that is bent so as to face the lower surface.

A through hole 62a is provided at a position facing the turntable 18 at substantially the center of the upper surface 62.
Moreover, the periphery of the through hole 62a is recessed downward by one step 62b.
Is provided. The through hole 62a is sealed by a transparent adhesive seal (not shown). Further, on the upper surface 62, a plurality of reinforcing ribs 62c to 62g are projected so as to face the outermost periphery of the disc, and strength is ensured, and the disc is displaced upward due to an external impact during rotation of the disc. In addition, the reinforcing ribs 62c to 62g are in sliding contact with the outermost periphery of the disc, and the portions other than the outermost periphery of the disc are prevented from slidingly contacting the upper surface 62 to protect the disc.

At the front end of the right bottom surface 60 of the shield cover 16, there is provided a recessed portion 70 which is recessed downward. The recessed portion 70 holds the tray 20 when the tray 20 is moved to the disc mounting position. Lock pins 72, 73 for locking a lock lever (not shown) for locking are erected.

The back surface 68 of the shield cover 16 is
It has a connector opening 74 for exposing the connection portion of the connector 12 supported by the right bottom surface 60.

Now, the structure of the flexible wiring board 14 will be described.

FIGS. 14A and 14B are plan views showing the shape of the flexible wiring board 14. 15A and 15B are views showing a state where the flexible wiring board 14 is attached, where FIG. 15A is a plan view and FIG. 15B is a side view.

As shown in FIG. 14A, in the flexible wiring board 14, the first wiring board 15 and the second wiring board 17 extend in parallel with each other, and The end portion with the second wiring board 17 is integrally formed so as to be continuous with the third wiring board 19. The first wiring board 15 has terminals 15a in which a plurality of electrodes connected to the fixed side connector 12 are formed in parallel, and the second wiring board 17 has a plurality of terminals connected to the movable side connector 13. Of the electrodes have terminals 17a formed in parallel.

As shown in FIG. 14B, the first wiring board 15 is bent at a center line 80 extending in the A and B directions, and is centered above the region 15b on the left side of the center line 80. The area 15c on the right side of 80 is folded so as to overlap. As a result, the width of the first wiring board 15 is halved, and it is possible to save space in the disk device 11.

As shown in FIG. 15A, when the flexible wiring board 14 is attached to the disk device 11,
The second wiring board 17 is bent in a U shape and formed so as to extend in the A direction. In this manner, the second wiring board 17 forms the bent portion 17b so that the terminal 17a is connected to the tray 20.
In addition to being connected to the connector 13, the bending portion 17b moves as the tray 20 moves in the A and B directions, and operates so as not to hinder the movement of the tray 20.

FIG. 16 is a vertical sectional view showing a state in which the disk device 11 is incorporated in a notebook personal computer.

As shown in FIG. 16, the disk device 1
1, a fixing portion 58 protruding from the left and right side surfaces 64 and 66 and the rear surface 68 of the shield cover 16 when inserted into a disk device housing portion 84 formed on the side surface of the notebook personal computer 82 is screwed to the main frame 86 Conclude by Then, the keyboard 88 is attached above the disk device 11.

The notebook personal computer 82 is
Since the tray guide mechanisms 30 and 32 for guiding the tray 20 are supported by the shield cover 16, the cumulative value of the clearances of the respective components interposed between the tray 20 and the shield cover 16 becomes small, and thinning is achieved. At the same time, since the disk device 11 does not need the conventional frame, it is possible to reduce the thickness of the frame.

In the above embodiment, the disk device 11 incorporated in the notebook type personal computer 82 has been described as an example, but the present invention is not limited to this, and a desktop type personal computer having a vertical casing and a thin type is used. Of course, it is also applicable.

[0058]

As described above, according to the first aspect of the invention, the tray having the turntable on which the disc-shaped recording medium is mounted, and one side of the tray are located between the disc replacement position and the disc mounting position. A disk device comprising a first tray guide mechanism that movably supports the second tray guide mechanism that movably supports the other side of the tray between a disk replacement position and a disk mounting position,
Since one of the first tray guide mechanism and the second tray guide mechanism is provided vertically and the other of the first tray guide mechanism and the second tray guide mechanism is provided horizontally, the disk device is The tray can be supported under the same conditions regardless of whether it is installed horizontally or vertically, preventing vibration characteristics from changing depending on the mounting direction of the disk device, and improving reliability against vibration. You can

According to the invention of claim 2, the first
Since the flexible wiring board is interposed between the tray guide mechanism of the second tray guide mechanism or the tray guide mechanism that is horizontally arranged and the supporting portion that supports the tray guide mechanism, the vibration is generated depending on the mounting direction of the disk device. The characteristics can be prevented from changing and reliability can be improved, and the installation space of the flexible wiring board can be saved to cope with downsizing of the device.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a conventional disk device.

FIG. 2 is a perspective view showing an embodiment of a disk device according to the present invention.

FIG. 3 is a vertical cross-sectional view of an embodiment of the disk device according to the present invention as viewed from the front.

FIG. 4 is a plan view of the disk device 11.

5 is a front view of the disk device 11. FIG.

FIG. 6 is a rear view of the disk device 11.

7 is a right side view of the disk device 11. FIG.

FIG. 8 is a bottom view of the disk device 11.

9 is a plan view of the shield cover 16. FIG.

10 is a front view of the shield cover 16. FIG.

11 is a rear view of the shield cover 16. FIG.

FIG. 12 is a right side view of the shield cover 16.

13 is a bottom view of the shield cover 16. FIG.

FIG. 14 is a plan view showing the shape of a flexible wiring board 14.

15A and 15B are diagrams showing a state where the flexible wiring board 14 is attached, in which FIG. 15A is a plan view and FIG. 15B is a side view.

FIG. 16 is a vertical cross-sectional view showing a state where the disk device 11 is incorporated in a notebook personal computer.

[Explanation of symbols]

11 Disk device 12, 13 connector 14 Flexible wiring board 15 First wiring board 16 Shield cover 17 Second wiring board 18 turntable 19 Third wiring board 20 trays 22 Optical disc 23 Clamp mechanism 24 Disc storage 25 turntable drive motor 26 Optical pickup 30, 32 tray guide mechanism 46 front bezel 50 openings 52 Shield plate 60 Bottom right side 61 space 62 upper surface 64, 66 left and right side 68 back 74 Connector opening 82 Notebook personal computer 84 Disk device storage

Claims (2)

[Claims] 1. A tray having a turntable on which a disc-shaped recording medium is mounted, and a first tray guide mechanism for movably supporting one side of the tray between a disc replacement position and a disc mounting position. A second tray guide mechanism for movably supporting the other side of the tray between a disc exchange position and a disc mounting position, wherein the first tray guide mechanism or the second tray guide mechanism is provided. A disc device, wherein one of the tray guide mechanisms is provided vertically, and the other of the first tray guide mechanism or the second tray guide mechanism is provided horizontally. 2. A flexible wiring board is interposed between the horizontally arranged tray guide mechanism of the first tray guide mechanism or the second tray guide mechanism and a support portion supporting the tray guide mechanism. 2. The disk device according to claim 1, wherein the disk device is made to operate.