JP2001216703A - Disk drive assembly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the shaking of a disk tray in a draw-out position. SOLUTION: This disk drive assembly has the disk tray 4 which is disposed movably between a draw-out position where the disk is drawn out of a device body 26 and the retraction position where the disk is retreated in a main body. The loading and taking out of a disk-like recording medium 18 are carried out in the draw-out position. The assembly is so formed that the disk-like recording medium is subjected to recording and/or reproduction in the state that the disk tray is loaded with the disk-like recording medium and exists in the retraction position. Spring pieces 10 and 10 disposed at the rear end of the disk tray in the state that the disk tray exists in the draw-out position come into elastic contact with a disk retaining guide 17b disposed at the device body, by which the shaking of the disk in the draw-out position is eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a novel disk drive device. More specifically, the present invention relates to a technique for placing a disk-shaped recording medium on a main body of a device and moving the disk tray movably between a drawn-out position and a drawn-in position, and favorably and stably positions the disk tray at the drawn-out position.

[0002]

2. Description of the Related Art For example, CDs, CD-ROMs, DVDs,
Recording on a disk-shaped recording medium such as an HD-CD and / or
Alternatively, a disk drive device that performs reproduction has a disk tray movably provided between an extraction position and a retraction position with respect to the device main body, and a disk-shaped recording medium is placed on the disk tray and loaded. That is, a structure that is moved to a position where recording and / or reproduction is performed is used.

A disk rotation drive mechanism for rotating the loaded disk-shaped recording medium and reading of recorded information from the disk-shaped recording medium, that is, reproduction and / or writing, ie, inside the apparatus body of the disk drive apparatus, ie, And an optical pickup mechanism for performing recording.

[0004] The disk-shaped recording medium is placed on a disk tray at a pull-out position, and when the disk tray is pulled into the apparatus main body, the disk-shaped recording medium is rotated by a disk rotation drive mechanism. The reproduction and / or recording of information is performed by the optical pickup mechanism on the disk-shaped recording medium rotated by the drive mechanism.

[0005]

By the way, in recent years, miniaturization of the above-mentioned disk drive device has been promoted, and with the miniaturization of the disk drive device, the attitude of the disk tray at the draw-out position becomes unstable. Problems arise.

[0006] As shown in FIG.
Are supported by tray guides d, d,... Provided on the side of the apparatus body c on the lower surface of the rails b, b (only one is shown) formed to extend in the front-rear direction on both side surfaces thereof. , And the upper surfaces of the rails b, b are pressed by tray holding guides e, e,... Provided on the side of the apparatus main body c, so that they are movably supported by the apparatus main body c.

When the size of the disk drive device f is reduced, the distance between the supporting portions on the device body f side that supports the disk tray a at the pulled-out position becomes shorter, so that the position of the disk tray a is lowered forward. Become. Specifically, an interval between the front end tray guides d, d (only one of them is shown) and the tray holding guides e, e (only one of them is shown) for holding the rear ends of the rails b, b. L
, And the interval between the tray guides d, d,... And the tray holding guides e, e,... Is equal to or greater than the thickness of the rail members b, b. And tray guides d, d,... And tray holding guide e,
Since there is a clearance between e,.
As shown in (1), the disc tray a is in a forward-lowering position due to its own weight in the state where the disc tray is in the pulled-out position.

[0008] When the disk tray a is placed at the pulling-out position and is in the forwardly lowered position, not only is the appearance not good, but also there is a problem that it is difficult to mount the disk-shaped recording medium. Further, when the disk drive device f is used in a so-called vertical position, that is, when the disk drive device is used in a posture in which the surface direction of the disk-shaped recording medium is vertical, the disk tray a is pulled in or out of the device main body. During operation, there is a problem in that the disc-shaped recording medium may fall from the disc tray a due to rattling of the disc tray a.

Accordingly, an object of the present invention is to prevent the disk tray from rattling at the pull-out position.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the disk drive of the present invention eliminates rattling between the disk tray and the apparatus main body when the disk tray is located at the draw-out position. A rattling removing means is provided.

Therefore, in the disk drive apparatus of the present invention, the disk tray does not rattle at the pulled-out position, so that the attitude of the disk tray at the drawn-out position can be kept good and stable.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a disk drive device according to an embodiment of the present invention.

The disk drive 1 is, for example,
D, CD-ROM, DVD, HD-CD, etc., for performing recording and / or reproduction on a disk-shaped recording medium, and is provided movably between a drawing position and a drawing position with respect to the apparatus main body. A disk-shaped recording medium having a disk tray is placed on the disk tray and loaded, that is, moved to a position where recording and / or reproduction is performed, and the loaded disk-shaped recording medium is rotated by a disk rotation driving mechanism. Is driven to rotate,
Information is recorded and / or reproduced on the disk-shaped recording medium by an optical pickup device that moves in the radial direction of the rotating disk-shaped recording medium.

The exterior of the disk drive device 1 is composed of a flat, box-shaped exterior body 2 with an open front, and a front panel 3 fixed to the opening of the exterior body 2. The front panel 3 is formed with a tray entrance 3a into which the disk tray 4 can be inserted and removed.

The disk tray 4 has a substantially flat main part 5.
The main part 5 is formed of a synthetic resin. Main part 5
Has a rectangular shape slightly longer in the front-rear direction in a planar shape, and a disk mounting concave portion 6 which is a shallow circular concave portion for mounting the disk-shaped recording medium in a state of being biased to the front side is formed,
An opening 7 is formed from the center of the disc mounting recess 6 to near the rear end.

Rail bodies 8, 8 extending in the front-rear direction are provided on both right and left side surfaces of the main portion 5 of the disk tray 4.
Resilient pieces 9, 9, 10, and 10 are formed at portions of the rail bodies 8 near the front end and near the rear end, respectively. The front-side resilient piece 9 is formed by providing a slit that crosses the rail body 8 and a slit that is continuous with the rear end of the slit and extends rearward along the base end of the rail body 8. A large elastic deformation is made possible by reducing the wall thickness. The rear elastic piece 10 is formed by providing a slit that crosses the rail body 8 and a slit that is continuous with the rear end of the slit and extends forward along the base end of the rail body 8. A large elastic deformation is made possible by reducing the thickness of the thinner. In addition, these projectile pieces 9, 9,
The width of each of the rails 10 and 10 is approximately half the width of each of the rails 8 and 8. Further, projections 9a, 9a and 10a and 10a are formed on the top surfaces of the tips of the resilient pieces 9, 9 and 10 and 10. The projections 9a, 9a and 10a, 10a project upward from the upper surfaces of the rails 8, 8.

A front plate 11 is attached to the front end of the main part 5 of the disc tray 4. When the disk tray 4 is completely housed in the exterior body 2, that is, in the retracted position, the tray entrance 3 a formed in the front panel 3 of the exterior body 2 is
(See FIG. 1).

A frame 12 is fixedly supported in the exterior body 2. The frame 12 has a bottom wall 13 integrally formed slightly above the lower ends inside the three side walls except for the front.
A large opening 14 is formed in the bottom wall 13 except for a small portion surrounded by four. And the bottom wall 13
The left and right side edges of the tray guides 16, 16,.
・ ・ Are protruded integrally. The left and right side walls 1
The tray guides 16, 16,.
..Tray holding guide 1 at a predetermined interval from above
7a, 17a, 17b, 17b, 17c, 17c, 17
d and 17d are protruded. The vertical spacing between the lower surfaces of the tray holding guides 17, 17,... And the upper surfaces of the tray guides 16, 16,. It is slightly larger. Further, the front tray holding guides 17a, 17a, the second tray holding guide 17b, 17b from the front, and the rearmost tray holding guide 17d,
The projecting amount of the 17d from the side walls 15, 15 is substantially equal to the width of the rails 8, 8 of the disk tray 4, and the projecting amount of the second tray pressing guide 17c, 17c from the rear side from the side walls 15, 15. Is less than half the width of the rails 8.

In the disc tray 4, the lower surfaces of the rails 8, 8 are supported by tray guides 16, 16,..., And the upper surfaces of the rails 8, 8 are tray pressing guides 17, 17,. Is supported by the frame 12 so as to be slidable in the front-rear direction.

When the disk tray 4 is at the pulled-out position where most of the disk tray 4 has been pulled out of the exterior body 2, the lower surfaces of the rails 8, 8 located immediately behind the tray entrance 3a are at the forefront end. The lower surfaces of the rear ends of the rail bodies 8, 8 are supported by the tray guides 16, 16, which are positioned, and are supported by the second tray guides 16, 16, from the front. 1
The zero projections 10a, 10a are in elastic contact with the lower surfaces of the second tray pressing guides 17b, 17b from the front (see FIGS. 5 and 6). As described above, the projections 10a, 10a of the elastic pieces 10, 10 formed at the rear ends of the rail bodies 8, 8
When a contacts the lower surface of the second tray pressing guide 17b, 17b from the front, the lower surface of the rear end portion of the rail body 8, 8 is pressed against the second tray guide 16, 16 from the front, As a result, the clearance between the vertical distance between the second tray guide 16, 16 from the front and the second tray pressing guide 17b, 17b in the vertical direction and the thickness of the rail body 8, 8 is lowered. That is, the disc guide 4 is absorbed by the tray guides 16, 16, and the disc tray 4 is prevented from being lowered forward by its own weight.

When the disc tray 4 is at the retracted position where the disc tray 4 is retracted into the exterior body 2, the projections 9a, 9a of the resilient pieces 9, 9 on the front side of the disc tray 4 are positioned at the frontmost tray pressing guide 17a, 17a, and the projections 10a, 10a of the elastic pieces 10, 10 at the rear end elastically contact the tray holding guides 17d, 17d at the rear end, whereby the rail members 8, 8 are connected to the tray guides 16, 16,. Therefore, the disc tray 4 does not rattle in the retracted position.

The amount of protrusion of the second tray pressing guide 17c, 17c from the rear from the side walls 15, 15 is less than half the width of the rails 8, 8, so that the disk tray 4 moves during the movement of the disk tray 4. The resilient pieces 10, 10 at the rear end do not abut against the tray holding guides 17c, 17c, and therefore, the tray holding guides 17c, 17c do not hinder the smooth movement of the disk tray 4.

The disk tray 4 as described above can be moved between the drawn position shown in FIG. 6 and the drawn position shown in FIG. 8 by known means.

The disk-shaped recording medium 18 is placed in the disk loading recess 6 of the disk tray 4 at the pull-out position, and the disk tray 4 is pulled into the pull-in position. It is drawn to the position of.

The movable chassis 1 is provided at the rear end of the frame 12.
A rear end 9 is tiltably supported. Thus, the movable chassis 19 is tilted such that the front end moves up and down.

At the front end of the movable chassis 19, a disk rotation drive mechanism 20 is supported. The disk rotation drive mechanism 20 includes a spindle motor 21 and the spindle motor 2.
1 is provided with a turntable 22 that is rotated.

The movable chassis 19 has a disk rotation drive mechanism 2 at the rear side of the disk rotation drive mechanism 20.
An optical pickup mechanism 23 that moves in a direction away from and close to 0 is supported.

A support plate 24 is fixed so as to extend between the upper edges of the front end portions of the side walls 15 and 15 of the frame 12, and the center of the support plate 24 faces the disk rotation drive mechanism 20. The chucking disk 25 is rotatably supported at the set position.

As described above, the apparatus main body 26 is formed by the frame 12, the movable chassis 19, the support plate 24, the mechanisms and members supported by these, and the exterior body 2.
Is configured.

As described above, when the disk tray 4 is pulled into the apparatus main body 26, the movable chassis 19 located below is rotated upward and the disk rotation drive mechanism 2 is rotated.
0 turntable 22 is the opening 7 of the disc tray 4
The disk-shaped recording medium 18 is placed on the turntable 22 so that the disk-shaped recording medium 18 slightly lifts up from the disk-mounting concave part 6 and, at the same time, chucks. Disk 25
Are attracted to the turntable 22 by a magnet (not shown), so that the disk-shaped recording medium 18 is held between the turntable 22 and the chucking disk 25 (see FIG. 9).

Then, the turntable 22 is rotated by the spindle motor 21 and the chucking disc 2 is rotated.
5 and the disk-shaped recording medium 18 are rotated together with the turntable 22, and the optical pickup mechanism 23 is moved in the radial direction of the rotating disk-shaped recording medium 18,
The recording and / or reproduction of information on the disc-shaped recording medium 18 is performed.

After the recording and / or reproduction of information on the disc-shaped recording medium 18 is completed, the disc-shaped recording medium 18
Is performed, for example, an operation such as pressing an unillustrated eject button provided on the front panel 3 of the exterior body 2 causes the movable chassis 19 to rotate downward, thereby causing the disk rotation drive mechanism 20 to rotate. Moves down,
The disk-shaped recording medium 18 is placed in the disk mounting recess 6 of the disk tray 4, and the chucking disk 25 is separated upward from the disk-shaped recording medium 18.

Subsequently, the disk tray 4 is pulled out from the apparatus main body. Then, the disk-shaped recording medium 18 is taken out from the disk tray 4.

In the disk drive device 1 described above, resilient pieces 10, 10 are formed at the rear ends of the rails 8, 8 of the disk tray 4, and the resilient pieces 10, 10 are located at the pulled-out position. At the pulled-out position, the resilient pieces 10 and 10 elastically contact the tray holding guides 17b and 17b provided on the apparatus main body 26 to serve as a rattling removing means.
Since the back end of the disc tray 8 is pressed against the tray guides 16 and 16 to absorb the backlash, the disc tray 4 does not fall forward due to its own weight.

When the disc tray 4 is in the retracted position, the front and rear resilient pieces 9, 9, 10, 1
0 both act as rattling removing means to prevent rattling of the disk tray 4 at the retracted position.

FIGS. 10 and 11 show a first modification of the rattling removing means.

The rattling removing means is provided with riding protrusions 27, 27 formed at the rear ends of the rails 8, 8 (only one of them is shown) of the disk tray 4, and a second tray holding guide from the front. 17b, and projections 28 formed on the lower surface of 17b (only one of them is shown).
The front ends of the ride-up protrusions 27 are inclined downwards 27a.

In the first modification, when the disk tray 4 reaches the pull-out position, the projections 2 formed on the second tray pressing guides 17b, 17b from the front.
8, 28 ride on the riding protrusions 27, 27 formed at the rear end of the rail bodies 8, 8 of the disc tray 4, whereby the projections 28, 28 move the rear ends of the rail bodies 8, 8 downward. Since the lower surfaces of the rear ends of the rails 8 are pressed against the tray guides 16, the play between the apparatus main body 26 at the rear end of the disk tray 4 is absorbed. Is prevented from being lowered forward due to its own weight.

It is to be noted that the protrusions 2, 2
Since the ride to 7, 7 is performed via the inclined surfaces 27a, 27a, it is performed smoothly.

FIGS. 12 and 13 show a second modification of the rattling removing means.

The rattling removing means shown in this modification removes rattling at the retracted position.

The rattling removing means includes a presser spring 2 attached to the lower surface of the rearmost tray presser guides 17d, 17d.
9, 29 (only one is shown). The presser spring 29 is made of a leaf spring material, is curved in a substantially arcuate shape, and has a front end portion at which the tray presser guides 17d, 17d are provided.
d is fixed to the lower surface, the rear end portion is a free end, and the middle curved portion protrudes downward.

In the second modification, when the disc tray 4 reaches the retracted position, the pressing spring 2
9 and 29 ride on the rear ends of the rails 8 and 8 of the disc tray 4 and press the rear ends downward. Therefore, the rear ends of the rails 8, 8 are pressed against the tray guides 16, 16, and the back end between the disk tray 4 and the apparatus main body 26 is absorbed.

The rails 8 of the holding springs 29, 29,
Riding to the rear end of the rail 8 is performed via the inclined surfaces 8a formed at the rear end of the rails 8, so that the rail 8 is smoothly moved.

Further, in addition to the above-mentioned rattling removing means, for example, an inclined surface is formed at one or both of the places where the disc tray and the apparatus main body come into contact with each other, and the disc tray is moved to the drawn-out position and / or the drawn-in position. When the inclined surface is in sliding contact with the disk tray and presses the disk tray in one direction, the rattling of the disk tray can be removed. It is not limited.

In addition, the shapes and structures of the respective parts shown in the above-described embodiments are merely examples of the specific embodiments to be carried out when carrying out the present invention, and the technical scope of the present invention is not limited thereto. Should not be interpreted restrictively.

[0047]

As is apparent from the above description, the disk drive of the present invention is provided so as to be movable between a withdrawal position where it is pulled out from the apparatus main body and a retracted position where it is drawn into the apparatus main body. A disc tray on which the disc-shaped recording medium is placed and taken out at the pull-out position, and recording and recording on the disc-shaped recording medium in a state where the disc tray is loaded with the disc-shaped recording medium and positioned at the drawing-in position. And / or a disk drive device for performing reproduction, wherein a rattling removing means for removing rattling between the disk tray and the device main body in a state where the disk tray is located at the drawing position is provided. Features.

Therefore, in the disk drive device of the present invention, the disk tray does not rattle at the pulled-out position, so that the attitude of the disk tray at the drawn-out position can be kept good and stable.

Therefore, not only does the appearance improve, but also
It becomes easier to place a disk-shaped recording medium.

According to the second aspect of the present invention, the rattling removing means is provided on the disk tray.
Even when the rattling removing means cannot be provided on the apparatus main body side, the rattling of the disk tray can be removed.

According to the third aspect of the present invention, since the rattling removing means is provided on the apparatus main body side, even if the disk tray cannot be provided with the rattling removing means, The rattling of the disc tray can be eliminated.

According to the fourth and fifth aspects of the present invention, the rattling removing means is an inclined surface provided at a position where the disk tray and the apparatus main body come into contact with each other.
It is easy to form the rattling removing means.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the disk drive device of the present invention together with FIG. 2 to FIG. 9, and FIG. 1 is a perspective view showing the appearance.

FIG. 2 is a perspective view showing a state in which a disk tray is at a drawn-out position, with an exterior body removed;

FIG. 3 is an exploded perspective view showing a frame, a movable chassis, and a support plate.

FIG. 4 is a perspective view of a disk tray.

FIG. 5 is a plan view of a main part showing a state where a disk tray is at a drawn-out position.

FIG. 6 is a cross-sectional view of a main part showing a state where the disk tray is at a drawn-out position.

FIG. 7 is a plan view of a main part showing a state where the disk tray is at a retracted position.

FIG. 8 is a sectional view of a main part showing a state where the disk tray is at a retracted position.

FIG. 9 is a sectional view of a main part showing a state where the disk-shaped recording medium is chucked.

FIG. 10 is a sectional view of a main part showing a first modified example of the rattling removing means together with FIG. 11, and this figure shows a state where the disk tray is located immediately before the pull-out position.

FIG. 11 shows a state in which the disk tray is at a drawn-out position.

12 is a sectional view of a main part showing a second modification of the rattling removing means together with FIG. 13, and this figure shows a state where the disk tray is located immediately before the pull-out position.

FIG. 13 shows a state in which the disk tray is at a drawn-out position.

FIG. 14 is a schematic cross-sectional view showing a conventional disk drive device in a state where a disk tray is at a pulled-out position.

[Explanation of symbols]

1 disk drive, 4 disk tray, 9 disk drive
Resilient pieces (rattle removing means), 10 resilient pieces (rattle removing means), 18 disk-shaped recording medium, 26 device main body, 27 ride-up protrusion, 28 ... protrusion, 27, 28 ... Rattling removing means, 29: presser spring (rattle removing means)

Claims (5)

[Claims] 1. A disk-shaped recording medium is mounted and unloaded at a position between a withdrawal position where the disk-shaped recording medium is pulled out of the apparatus body and a withdrawal position where the disk-shaped recording medium is drawn into the apparatus body. A disk drive device comprising a disk tray, wherein recording and / or reproduction on the disk-shaped recording medium is performed in a state where the disk-shaped recording medium is placed on the disk-shaped recording medium and is located at the retracted position, A disk drive device provided with rattling removing means for removing rattling between a disk tray and a device main body in a state where the disk tray is located at a drawing position. 2. The disk drive device according to claim 1, wherein said rattling removing means is provided on a disk tray. 3. The disk drive device according to claim 1, wherein said rattling removing means is provided on a device main body side. 4. The disk drive device according to claim 2, wherein the rattling removing means is an inclined surface provided at a position where the disk tray and the device main body come into contact with each other. 5. The disk drive device according to claim 3, wherein the rattling removing means is an inclined surface provided at a position where the disk tray and the apparatus main body come into contact with each other.