JPH11328801A - Disk drive assembly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable sure disk chucking to a turntable by positioning a first disk tray relative to a chassis at the time of moving this disk tray in a vertical direction. SOLUTION: Both side parts of the base chassis 5 are respectively provided with two guide members 8, 8 near the central part of its both side parts and guide grooves 9 are formed. Both sides of the first disk tray 1 are provided with positioning bosses 10 in the positions corresponding to these guide grooves 9. The first disk tray 1 is so constituted that the bosses 10 are guided to the guide grooves 9 when the tray moves in the vertical direction. The first disk tray 1 is supported at a second disk try 2 via a spring 3 in the descending process of the first disk tray 1. The positioning bosses 10 are guided into the guide grooves 9 formed by the guide members 8, 8 and their movement in a longitudinal direction are regulate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk drive, and more particularly, to an operation of pulling a disk into an apparatus, which is used in an optical disk drive such as a CD-ROM, and a method of driving a disk drive. The present invention relates to a disk drive device configured to perform disk loading by two operations of a chucking operation of moving a drawn disk in a vertical direction, placing the disk on a turntable, and clamping the disk.

[0002]

2. Description of the Related Art FIGS. 7 and 8 are views showing the structure of a conventional disk drive device. FIG. 7 is a plan view of the device, and FIG. 8 is a partial sectional view. As shown in FIG. 7, the conventional disk drive device has a double-structured tray including a first disk tray 41 that moves vertically and a second disk tray 42 that moves forward and backward of the drive device. I have it.
The first disk tray 41 is a second disk tray 42
The second disk tray 42 is pulled into the base chassis 45 with the disk 44 placed on the first disk tray 41.
The turntable 46 is fixed to the base chassis 45. After the second disk tray 42 is drawn into the chassis 46, the first disk tray 41 is moved up and down to place the disk 44 on the turntable 45. Then, a disc play is performed.

[0003]

However, this conventional disk drive has the following problems. First, since the disc tray has a double structure, in order to maintain the positioning accuracy between the first and second disc trays 41 and 42 and the turntable 46, the assembling accuracy of each of the two trays is required. Needs to be finished with high precision, and there is a problem that the manufacturing cost is increased.

As shown in the sectional views of FIGS. 8 (a) and 8 (b), the positional accuracy of the first disk tray 41 on which the disk 44 is directly mounted is determined by the first disk tray 41 and the second disk tray 41. It is determined based on the assembly accuracy of the disk tray 42 and the assembly accuracy of the second disk tray 42 and the base chassis 45. Therefore, in order to improve the positional accuracy between the turntable 46 and the first disk tray 41, that is, the disk 44, the first disk tray 4
It is necessary to increase the assembly accuracy of the first and second disk trays 42 and the assembly accuracy of the second disk tray 42 and the base chassis 45.

[0005] Further, in the conventional disk device, there is a problem that it is sometimes difficult to play the disk stably. Because, as described above, the disk loading is performed using the disk tray having the double structure, the first disk tray 41 and the turntable 4 are not used.
6 and the position accuracy becomes difficult, and during the disc play,
This is because the space between the disk 44 mounted on the turntable 46 and the first disk tray 41 may not be sufficiently maintained.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the conventional disk drive device, and maintains the positional accuracy between the first disk tray and the base chassis at a high level, while the disk is being played. Disk and first
The present invention is to provide a disk drive device capable of stably performing a disk play by keeping a sufficient distance from the disk tray.

[0007]

In order to solve the above-mentioned problems, a disk drive according to the present invention comprises a turntable,
A chassis for holding the turntable, a first tray on which a disk is directly mounted and which operates vertically, and a first tray which holds the first tray and performs horizontal operation and And a second tray for pulling the first tray into the chassis, and after the second tray is pulled into the chassis, the first tray is moved up and down to perform disk chucking. The driving device is characterized by comprising positioning means for positioning the first tray with respect to the chassis when the first tray is moved in the vertical direction.

As described above, according to the disk drive of the present invention, when the first tray is moved in the vertical direction, the first tray is moved.
Since the positioning means for positioning the first tray with respect to the chassis is provided, regardless of the assembly accuracy of the first tray and the second tray and the assembly accuracy of the second tray and the chassis, the first tray can be mounted on the chassis. At a predetermined position. Since the first tray directly holds the disk and the chassis holds the turntable, positioning the first tray with respect to the chassis makes it possible to reliably perform disk chucking. it can.

[0009] Preferably, the positioning means comprises a guide groove provided in the chassis member and a guided member provided in the first tray.

It is preferable that the guide groove is constituted by a first guide member provided in a direction for restricting the movement of the first tray in the moving direction of the second tray. With this configuration, the first tray can be positioned with respect to the chassis with a simple structure.

The guide groove includes a first guide member for restricting a movement of the first tray in a moving direction of the second tray, and a guide groove for restricting a movement of the first tray in a moving direction of the second tray. It is preferable that the second guide member restricts in a direction perpendicular to the second guide member. With this configuration, the first tray can be positioned more accurately.

Further, the guide groove includes the first and second guide grooves.
And a third guide member provided in a direction for restricting the movement of the first tray in the moving direction of the first tray. With this configuration, during the disc play, the first
The distance between the tray and the disc can be kept to a maximum, and stable disc play can be performed.

The first guide member and / or the second guide member
Has a tapered shape at a portion receiving the guided member, and the guided member has a tapered shape at a distal end portion guided by the first guide member and / or the second guide member. It is preferred to have. With this configuration, the positioning of the first tray with respect to the chassis can be performed more smoothly.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are views showing a configuration of a disk drive device according to the present invention. FIG. 1A is a plan view showing a state before a disk tray is pulled into a chassis, and FIG. FIG. 2A is a plan view showing a state in which the tray is pulled into the chassis. FIG. 2A is a partial cross-sectional view showing a state in which the disk tray is drawn into the chassis. FIG. FIG. 4 is a partial cross-sectional view showing a state where the disk is mounted on a turntable.

The first disc tray 1 is supported on a second disc tray 2 by a spring 3 and is lifted. The first disk tray 1 has a disk 4 directly mounted thereon, and is configured to be vertically slidable with respect to the second disk tray 2. Also, the second
The disk tray 2 is configured to be slidable in the front-rear direction (direction indicated by arrow A) on a rail 6 formed on the base chassis 5 while holding the first disk tray 1. At the four corners of the base chassis 5, there are provided pressing members 7 for regulating the vertical movement of the second tray 2 when pulling the second tray 2 into the chassis 3.

In the apparatus according to the present invention, the base chassis 5
Two guide members 8, 8 are provided near the center of both sides of the guide groove 8, respectively, and these members form a guide groove 9. Positioning bosses 10 are provided on both sides of the first disk tray 1 at positions corresponding to the guide grooves 9, and when the first disk tray 1 moves up and down, the bosses 10 are inserted into the guide grooves 9. It is configured to be guided. When lowering the first disk tray 1, the guide members 8, 8 guide the boss 10 to position the first disk tray at a predetermined position,
When the disc tray 2 is pulled into the base chassis 3, the disc tray 2 also serves as a pressing member that regulates the vertical movement of the tray 2.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In a first embodiment of the present invention, a first disk tray 1 has a disk 4 mounted thereon and a spring 3 mounted thereon.
The second disk tray 2 is lifted by
The second disc tray 2 is supported by the pressing member 7 and the guide members 8, 8 while being restricted from moving in the vertical direction, and along the guide rail 6 as indicated by an arrow A in FIG. Move to a predetermined position in the direction shown.

After the pull-in operation of the second disk tray 2 is completed, as shown in FIG.
Is started, and in the course of this descent, the disk 4 placed on the first disk tray 1 is mounted on the turntable 11. Referring to FIG. 2A,
The first disk tray 1 on which the disk 4 is placed is supported by the second tray 2 via a spring 3. At this time, since the positioning boss 10 is located above the guide member 8, the second disk tray 2 is slidable in the horizontal direction.

When the first disk tray 1 is lowered after the second disk tray 2 has stopped at a predetermined position, the state shown in FIG. 2B is obtained. At this time, positioning boss 1
The reference numeral 0 is guided into a guide groove 9 formed by the guide members 8, 8, and the movement of the guide members 8, 8 in the front-rear direction (the direction perpendicular to the paper surface) is regulated. The disc 4 is set on the turntable 11 while the first disc tray 1 descends. At this time, the movement of the first disc tray 1 in the front-rear direction is already restricted by the guide grooves 9. Therefore, the displacement between the turntable 11 and the disk 4 can be reduced, and the disk 4 can be installed smoothly.

FIG. 3 is a side view showing the state of positioning of the first disk tray 1. FIG. 3A shows the first
Second disk tray 2 on which the first disk tray 1 is placed
Shows the state when the positioning boss 10 is pulled into the chassis 5, and the positioning boss 10 passes through one guide member 8 and stops above the guide groove 9. FIG. 3B shows the second tray 2
FIG. 3 is a diagram showing a state in which is stopped at a predetermined position. In this state, the position of the first tray 1 in the front-rear direction may be deviated from an appropriate position due to a component tolerance or the like. FIG.
(C) is a diagram showing a state where the first tray 1 is lowered and loading is completed. In the process of lowering the first tray 1, the positioning boss 10 is guided in the guide groove 9, and
It is positioned at an appropriate position with respect to the base chassis 5. In this way, the error of the position of the first tray 1 in the front-rear direction is corrected, so that the disc chucking can be performed reliably.

As shown in FIG. 3, the positioning boss 10
A tapered portion 10a is provided at the lower end of the guide member 8, and tapered portions 8a, 8
By providing a, the guiding operation of the boss 10a can be performed more smoothly.

FIGS. 4 and 5 are views showing the structure of a disk drive according to a second embodiment of the present invention. FIG. 4 is a plan view of the disk drive, and FIG. 5 is a partial sectional view. In the following description of the embodiment, the same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted. As shown in FIGS. 4 and 5, in the second embodiment, a guide groove 9 for guiding the positioning boss 10 is provided with a second guide member 21 for further restricting the first disc tray 1 from moving in the left-right direction. Is provided. That is, the second inner side surface of the base chassis 5 is located at a position corresponding to the guide groove 9.
The first guide member 8 regulates the movement of the first disc tray 1 in the front-rear direction, and the second guide member 21 also regulates the movement in the left-right direction. did. As a result, the first tray 1 can be positioned with higher accuracy, and disc chucking can be performed more reliably. In addition, a tapered shape 21a is also provided at the upper end of the second guide member 21 so that the positioning boss 10 can be smoothly guided.

FIG. 6 is a diagram showing the configuration of a third embodiment of the disk drive of the present invention. As shown in FIG. 6, in the third embodiment, first guide members 8, 8, which guide the positioning boss 10 of the first disk tray 1 in the front-rear direction (the method of moving the second disk tray), and In addition to the second guide member 21 that guides in the left-right direction, a stopper member 31 protruding inward from the lower end of the guide member 21 is provided so as to restrict the downward movement of the first disc tray 1. I have. With this configuration, the first disk tray 1 is positioned only by the positioning guide members (8, 21, 31) provided on the base chassis 7 regardless of the component accuracy of the second disk tray 2. It becomes possible. By providing a predetermined space between the stopper 31 and the rotating surface of the turntable 11, the space between the disk 4 and the first disk tray 1 is ensured when the first disk tray 1 is lowered. And a stable disc play can be realized.

[0024]

As described in detail above, according to the disk drive of the present invention, the tray (first disk tray) on which the disk is directly mounted is positioned with respect to the chassis accommodating the turntable. Since the positioning means is provided, the first disk tray (and thus the disk) can be positioned with high accuracy with respect to the turntable, and reliable disk chucking can be realized. Also, by restricting the downward movement of the first tray, the distance between the first tray and the disc can be reliably and sufficiently maintained, and a stable disc play can be performed. Furthermore, the device of the present invention does not require special positioning components, and the first tray can be positioned by devising the shape of the conventionally used components, that is, the shape of the base chassis. The above effect can be obtained without increasing the number of parts.

[Brief description of the drawings]

FIG. 1 is a plan view showing a configuration of an embodiment of a disk drive device of the present invention.

FIG. 2 is a partial sectional view showing the configuration of a first embodiment of the disk drive device of the present invention.

FIG. 3 is a partial side view showing the configuration of the first embodiment of the disk drive device of the present invention.

FIG. 4 is a plan view showing the configuration of a second embodiment of the disk drive device of the present invention.

FIG. 5 is a partial sectional view showing a configuration of a second embodiment of the disk drive device of the present invention.

FIG. 6 is a partial sectional view showing the configuration of a third embodiment of the disk drive device of the present invention.

FIG. 7 is a plan view showing a configuration of a conventional disk drive.

FIG. 8 is a partial side view showing the configuration of a conventional disk drive.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st disk tray 2 2nd disk tray 3 spring 4 disk 5 base chassis 6 rail 7 holding member 8 1st guide member 9 guide groove 10 positioning boss 11 turntable 21 second guide member 31 stopper

Claims (8)

[Claims] 1. A turntable, a chassis for holding the turntable, a first tray on which a disk is directly mounted and which operates in the vertical direction, and a horizontal operation for holding the first tray And a second tray that draws the first tray into the chassis.
After pulling the tray into the chassis,
A disk drive configured to perform disk chucking by vertically moving the first tray, wherein the first tray is positioned relative to the chassis when the first tray is vertically moved. A disk drive comprising means. 2. The disk drive according to claim 1, wherein said positioning means comprises a guide groove provided in said chassis and a guided member provided in said first tray. 3. The apparatus according to claim 2, wherein the guide groove is formed of a first guide member provided in a direction for restricting a movement of the first tray in a moving direction of the second tray. 3. The disk drive device according to 2. 4. A second guide provided in a direction in which the guide groove restricts the movement of the first guide member and the first tray in a direction orthogonal to the direction of movement of the second tray. 4. The disk drive according to claim 3, wherein the disk drive is constituted by a member. 5. The guide groove, wherein the first and second guide members and a third guide member provided in a direction for restricting a movement of the first tray in a moving direction of the first tray. The disk drive according to claim 4, wherein the disk drive is configured. 6. The disk according to claim 3, wherein the first guide member and / or the second guide member has a tapered shape at a portion receiving the guided member. Drive. 7. The device according to claim 3, wherein the guided member has a tapered shape at a leading end guided by the first guide member and / or the second guide member.
The disk drive device according to any one of the above. 8. The disk according to claim 3, wherein said first guide member also serves as a holding means for restricting a vertical movement of said second tray. Drive.