JP2009205725A - Disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk device which can be made compact, can prevent damage of a recording medium, and enables transportation of a disk without displacement. <P>SOLUTION: The disk device 100 is provided with a disk tray 50 having a small diameter placing plane 51B2, a pedestal part turning a small diameter disk 200, a turntable 24, and a recording and reproducing means. Also, the small diameter placing plane 51B2 is provided with a small diameter supporting part 52 projected to the upper part and supporting the position of an end face part side rather than the turning tip of a small diameter disk 200 when the small diameter disk 200 is turned, and a small diameter positioning part 53 in contact with the outer edge of the small diameter disk 200. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a disk device that conveys a disk-shaped recording medium and performs processing on the recording medium.

  2. Description of the Related Art Conventionally, a disk device has a configuration in which a recording medium is transported into and out of a housing and the loaded recording medium is supported at an information processing position (see, for example, Patent Document 1).

  The device described in Patent Document 1 includes a tray on which a large disk mounting surface and a small disk mounting surface are provided, and a turnable main chassis on which a turntable for mounting the disk is provided. The mounting surface of the small disk is provided in a state that is one step lower than the mounting surface of the large disk. When the tray is set in a horizontal posture, the large disk mounting surface and the small disk mounting surface are inclined so that the front side of the tray is positioned below the rear side.

Japanese Patent Laying-Open No. 2003-141849 (FIGS. 4, 7, and 8)

By the way, in the thing of patent document 1, when removing a small disk (small diameter disk) from a turntable, a main chassis is rotated in the direction which a small diameter disk faces a mounting surface. Then, the small-diameter disk comes into contact with the mounting surface and comes off the turntable, and the small-diameter disk is positioned at a step portion between the large-disk mounting surface and the small-diameter disk mounting surface. However, the small-diameter disk vibrates due to the impact when it comes into contact with the mounting surface, and when the tray unloading operation starts while the small-diameter disk vibrates, the small-diameter disk is not positioned at the stepped portion and is displaced from the mounting surface. The processing surface of the small-diameter disk may be damaged at the step portion.
In recent years, due to the thinning of the disk device, the tray is thinned and the height of the step portion is small. In this state, if the central portion of the small-diameter disk mounting surface is warped and lifted, the small-diameter disk is positioned by the lift, and the degree of engagement between the stepped portion and the disk may be reduced. In addition, since the opening for exposing the pickup is also formed in the stepped portion on the mounting surface, the engagement range between the stepped portion and the small-diameter disk is reduced. Further, when a small-diameter disk is conveyed, if the tray vibrates, the small-diameter disk may not be sufficiently engaged and positioned at the stepped portion. In these cases, during the tray transport operation, the small-diameter disk may not be positioned and may be damaged in the same manner as described above.

  An object of the present invention is to provide a disk device that can be thinned, prevents damage to a recording medium, and can transport a disk without being displaced.

  The invention according to claim 1 is a chassis, a disk tray for inserting and ejecting a disk-shaped recording medium into and out of the chassis with the processing surface facing downward, and the chassis insertion direction side below the disk tray. A pedestal portion provided so that the other end side positioned on the discharge direction side of the one end side can be rotated in a direction contacting and separating from the recording medium, with the one end side positioned at the center being pivoted. A disk holding portion provided on the front end side for detachably holding the recording medium, and provided on the pedestal portion, the recording is performed while moving between a rotation front end side and a rotation base end side of the pedestal portion. Information processing means for performing processing on the medium, and the disk tray has a large-diameter disk mounting surface on which the first recording medium is mounted in a state in which movement in the surface direction is restricted; Within this large diameter disk mounting surface A small-diameter disk mounting portion on which the second recording medium having a diameter smaller than that of the first recording medium is mounted in a state in which movement in the surface direction is restricted, and the large-diameter disk mounting An opening formed from approximately the center of the placement surface to the end in the insertion direction, and a tray opening for allowing the disc holding portion to appear and for exposing the information processing means. A small-diameter disk mounting surface on which the second recording medium is mounted concentrically with the first recording medium below the radial disk mounting surface, and a position on the discharge direction side of the small-diameter disk mounting surface A small-diameter disk support that protrudes upward from the rotation base and supports the position of the rotation base end side of the rotation front end of the second recording medium when the second recording medium rotates with the rotation of the pedestal portion. And the second recording A small-diameter disk positioning portion provided in a position where it comes into contact with the outer edge of the insertion direction side of the body, a disk apparatus characterized by comprising a.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In this embodiment, a disk device that records and reads information on a disk as a disk-shaped recording medium will be described as an example. It should be noted that, for example, a reproduction device, a recording device, a game machine, or the like that performs recording and reproduction processing such as video data recording provided with a portable disk device is not limited to an optical disk, but a magnetic disk, a magneto-optical disk, or the like Any disk device that records or reads various information on this recording medium can be targeted. Examples of the recording medium include a CD (Compact Disc), a DVD (Digital Versatile Disc), a BD (Blue-ray Disc), and an HD-DVD (High Definition DVD). As the disk, a small diameter disk and a large diameter disk can be used. An example of the small-diameter disk is an 8 cm disk.

[Disk unit configuration]
First, the overall configuration of a disk device according to an embodiment of the present invention will be described.
FIG. 1 is an exploded perspective view showing an overall schematic configuration of a disk device according to an embodiment of the present invention. FIG. 2 is a plan view showing the relationship between the chassis of the disk device and the disk tray.
In FIG. 1, a disk device 100 is a so-called horizontal type disk device and has a metal case body 10. The case body 10 includes an upper case 11 having a lower surface and a front surface that open over two surfaces, a lower case 12 that closes the lower surface of the upper case 11, and a front surface of the upper case 11 that has a window portion 13A. The decorative panel 13 is provided.

  The case body 10 is provided with a chassis 15 made of synthetic resin. The chassis 15 forms a case body 10 with the upper case 11, the lower case 12 and the decorative plate 13. The chassis 15 has a side surface portion 15A that is in close contact with the inner surface of the side plate portion of the upper case 11, an end surface portion 15B that is in close contact with the inner surface of the end plate portion of the upper case 11, and an inner surface side of the side surface portion 15A and the end surface portion 15B. A substantially rectangular shape having a support rib 15C projecting inward and an opening / closing drive arrangement portion 15D provided so as to bridge the front end portion of the side surface portion 15A and opening both end surfaces in the axial direction. It is formed in a frame shape.

  Further, the chassis 15 is provided with a clamper support member 17 that is fixed in a state of substantially closing the opening surface of the chassis 15. The clamper support member 17 is provided with a clamper 25 that can hold the small-diameter disk 200 together with a turntable 24 of the rotation driving means 23 described later.

A main body 20 is disposed on the chassis 15. The main body 20 has a pedestal 21 formed in, for example, a metal flat frame shape. The pedestal 21 is attached to the support rib 15 </ b> C of the chassis 15 so that one edge is rotatable in the vertical direction. Specifically, the other edge of the pedestal portion 21 is attached to the support rib 15 </ b> C via the float rubber 211.
Further, a float base 22 is attached between the chassis 15 and the pedestal portion 21 along one edge of the pedestal portion 21 as shown in FIG. The float base 22 has a longitudinal attachment holding portion 221 along one edge of the pedestal portion 21, and a pair of pivots integrally protruding substantially vertically at both ends in the longitudinal direction of the attachment holding portion 221. Arm portion 222.
Both ends of one edge of the pedestal portion 21 are attached to the attachment holding portion 221 via float rubber 211. Each of the pair of rotating arm portions 222 is provided with a rotating shaft portion 222A that is pivotally supported by the support rib 15C of the chassis 15 at the tip thereof. The pedestal 21 is guided to rotate by the float base 22. Here, the end portion of the pedestal portion 21 on the side of the end surface portion 15B is the rotation base end.

Further, as shown in FIG. 1, the pedestal portion 21 is provided with a rotation driving means 23 located on one side of the rotation. The rotation driving means 23 has a turntable 24 as a disk holding portion that is detachably engaged with the center hole 201 of the small diameter disk 200.
Further, a processing moving means 30 is disposed on the pedestal portion 21. The processing moving means 30 includes a pair of shafts 31 and a moving electric motor 32.
Further, the processing moving means 30 is provided with a recording / reproducing means 35 as information processing means. The recording / reproducing means 35 has a movement holding portion 36 that is held in a state of being bridged by the pair of shafts 31. In addition, a pickup 37 is disposed in the movement holding unit 36.

The chassis 15 is provided with a disc tray 50 that moves so as to be able to advance and retreat in the horizontal direction above the support ribs 15C. The disc tray 50 is formed in a substantially rectangular plate shape and has a tray portion 51 on which the small-diameter disc 200 is placed.
The tray unit 51 has a large-diameter mounting recess formed in a concave shape. The bottom surface of the large-diameter mounting recess is a large-diameter mounting surface 51A as a large-diameter disk mounting surface on which the large-diameter disk 300 having the center hole 301 can be mounted. A small-diameter mounting recess 51B as a small-diameter disk mounting portion is formed in a concave shape substantially at the center of the large-diameter mounting surface 51A. The small-diameter mounting recess 51B is provided with an outer peripheral wall 51B1 and a small-diameter mounting surface 51B2 as a small-diameter disk mounting surface on the bottom surface. The small-diameter placement surface 51B2 is formed one step lower than the large-diameter placement surface 51A. The small-diameter placement surface 51B2 can place the small-diameter disc 200 in a state where the surface direction coincides with the horizontal direction.
An opening 51C is formed in the small-diameter mounting recess 51B from the approximate center of the small-diameter mounting surface 51B2 to the insertion direction side, that is, the end on the end surface portion 15B side. The opening 51C causes the turntable 24 to appear and disappear and the recording / reproducing means 35 to be exposed.

A pair of small-diameter support portions 52 as small-diameter disk support portions project upward from the small-diameter placement surface 51B2 at positions corresponding to the end surface portion 15B side with respect to the rotational tip of the small-diameter disc 200. Specifically, the pair of small diameter support portions 52 are provided at substantially symmetric positions around a virtual line C including the center of the small diameter placement surface 51B2 and parallel to the insertion direction of the disc tray 50. These small diameter support portions 52 support the small diameter disk 200 by coming into contact with the vicinity of the outer edge on the outer peripheral side of the processing surface of the small diameter disk 200. Note that the tip of the small diameter support portion 52 may have a contact surface that contacts the small diameter disk 200. Thereby, stability improves compared with the case where the small diameter support part 52 supports the small diameter disk 200 by point contact.
Further, the end surface portion 15B side of the outer peripheral wall 51B1 of the small-diameter mounting recess 51B is a small-diameter positioning portion 53 as a small-diameter disk positioning portion with which the outer edge of the small-diameter disc 200 supported by the small-diameter support portion 52 abuts. The small diameter positioning part 53 and the small diameter support part 52 support the small diameter disk 200 in an inclined manner.

An opening / closing drive means 60 for moving the disk tray 50 back and forth is provided in the opening / closing drive arrangement portion 15D of the chassis 15. The opening / closing drive means 60 includes a drive transmission unit 61 provided with gears, pulleys, endless belts, and the like, and an in / out electric motor 63 as a motor. Then, the opening / closing driving means 60 advances and retracts the disk tray 50 in and out of the chassis 15 via the drive transmission unit 61 by driving the electric motor 63 for entering / exiting.
Further, the opening / closing drive means 60 has a moving cam 68 that is arranged on the opening / closing drive arrangement portion 15D of the chassis 15 so as to be movable along the opposing direction of the side surface portion 15A. The moving cam 68 is provided with a link groove that engages with an engagement pin (not shown) of the float base 22. The movable cam 68 moves along the width direction of the chassis 15 when the electric motor 63 for entry / exit is driven and the drive transmission unit 61 is driven, and the pedestal portion 21 is moved by moving the engagement pin along the link groove. Is turned up and down. A circuit board 70 is detachably attached to the chassis 15.

[Small-diameter disk carry-out operation of disk unit]
Next, the carry-out state of the small-diameter disk 200 of the disk device 100 in the above embodiment will be described with reference to FIGS. FIG. 3 is a cross-sectional view showing a first carry-out state of the disc tray. FIG. 4 is a cross-sectional view showing the second carry-out state of the disc tray. FIG. 5 is a cross-sectional view showing a third carry-out state of the disc tray. FIG. 6 is a cross-sectional view showing a fourth carry-out state of the disc tray. FIG. 7 is a cross-sectional view showing a fifth carry-out state of the disc tray.

As shown in FIG. 3, in the disk device 100, the small-diameter disk 200 is engaged and held by the turntable 24 before shifting to the carry-out operation of the small-diameter disk 200.
The control unit of the circuit board 70 drives the electric motor 63 for entering / exiting the opening / closing driving means 60. The drive transmission unit 61 is rotationally driven by the driving of the in / out electric motor 63, and the movable cam 68 moves in the right direction in FIG. Then, as shown in FIG. 4, the main body 20 rotates downward, and the small-diameter support 52 abuts against the outer edge of the lower surface of the small-diameter disk 200 during the rotation. The small diameter disc 200 is removed from the turntable 24 by the contact of the small diameter support portion 52 as shown in FIG. And the small diameter support part 52 becomes a fulcrum, and the outer edge of the end surface part 15B side of the small diameter disk 200 falls toward the small diameter mounting surface 51B2. As shown in FIG. 6, the outer edge of the small-diameter disc 200 on the end surface portion 15B side contacts the small-diameter positioning portion 53 that is the outer peripheral wall 51B1.
At this time, the length from the outer edge of the small-diameter disc 200 that contacts the small-diameter positioning portion 53 to the contact portion with the small-diameter support portion 52 is such that the tip of the small-diameter disc 200 directly contacts the small-diameter mounting surface 51B2. It is smaller than the length dimension from the outer edge contacting the small diameter positioning portion 53 to the contact portion with the tip when 200 is removed. For this reason, the vibration of the small-diameter disk 200 is reduced.
The small diameter disc 200 is inclined at the small diameter support portion 52 and the small diameter positioning portion 53. Next, as shown in FIG. 7, the disk tray 50 advances from the chassis 15, and the small-diameter disk 200 is conveyed to the outside. At this time, since the small-diameter disc 200 is inclined, its own weight is greatly applied to the small-diameter positioning portion 53, and the small-diameter disc 200 is positioned by the small-diameter positioning portion 53.

[Effects of disk unit]
According to the disk device 100 described above, the following operational effects are expected.

(1) A disc tray 50 having a small-diameter placement surface 51B2 on which the small-diameter disc 200 is placed on the disc device 100, and a pedestal portion that moves in a direction in which the small-diameter disc 200 is contacted and separated by the rotation of the rotation shaft portion 222A. 21, a turntable 24 that detachably holds the small-diameter disk 200, and a recording / reproducing means 35 that performs a recording / reproducing process on the small-diameter disk 200. Further, the small-diameter mounting surface 51B2 protrudes upward, and when the small-diameter disk 200 rotates, the small-diameter support part 52 supports the position on the end surface part 15B side with respect to the rotating tip of the small-diameter disk 200, and the small-diameter disk 200. And a small-diameter positioning portion 53 that abuts on the outer edge on the end face portion 15B side.
During the rotation of the turntable 24, the small-diameter disk 200 contacts the small-diameter support portion 52 at a position closer to the end surface portion 15B than the rotation tip. For this reason, since the length dimension from the contact part of the small diameter disk 200 to the small diameter support part 52 to the outer edge contacting the small diameter positioning part 53 is relatively small, the vibration of the small diameter disk 200 is reduced. Therefore, the small-diameter disc 200 is not displaced from the small-diameter placement surface 51B2, and is not damaged during the carry-out operation of the disc tray 50.
Further, since the small-diameter disk 200 is inclined by the small-diameter support part 52 and the small-diameter positioning part 53, the own weight of the small-diameter disk 200 is greatly applied to the small-diameter positioning part 53. Therefore, when the height dimension of the outer peripheral wall 51B1, which is the step between the large-diameter mounting surface 51A and the small-diameter mounting recess 51B, is small, when the opening 51C is formed in the outer peripheral wall 51B1, or when the disc tray 50 vibrates. Even when the carrying operation is performed, the degree of engagement between the small-diameter positioning portion 53 and the outer edge of the small-diameter disk 200 is increased, and the small-diameter disk 200 is not displaced. Therefore, the thin disk 200 can be transported without being displaced while preventing the small disk 200 from being damaged while reducing the thickness of the disk device 100.

(2) Further, a concave small-diameter mounting recess 51B is formed on the large-diameter mounting surface 51A, and a small-diameter supporting portion 52 is projected from the small-diameter mounting surface 51B2 of the small-diameter mounting recess 51B. The end surface portion 15B side of the outer peripheral wall 51B1 in 51B is a small diameter positioning portion 53.
For this reason, since the small-diameter mounting recess 51B has a general shape, it is only necessary to use the outer peripheral wall 51B1 of the small-diameter mounting recess 51B as the small-diameter positioning portion 53 and provide the small-diameter support surface 52 on the small-diameter mounting surface 51B2. Therefore, the design change of the general small-diameter mounting recess 51B can be reduced, and the productivity is improved.

(3) Further, the small-diameter disk 200 is supported by bringing the small-diameter support portion 52 into contact with the vicinity of the outer edge on the outer peripheral side of the processing surface of the small-diameter disk 200.
For this reason, since it contacts a portion different from the recording / reproducing area on the processing surface, damage to the recording / reproducing area on the processing surface can be prevented.

(4) A pair of small-diameter support portions 52 are provided at substantially symmetrical positions around a virtual line C including the center of the small-diameter placement surface 51B2 and parallel to the insertion direction of the disc tray 50.
For this reason, compared with the case where one small diameter support part 52 is provided or the case where it is provided in an asymmetrical position, the vibration of the small diameter disk 200 can be suppressed and can be supported stably.

[Other Embodiments]
The present invention is not limited to the above-described embodiment, but includes modifications and improvements as long as the object of the present invention can be achieved.

That is, although the small diameter mounting recessed part 51B showed the structure extended in a horizontal direction, it is not restricted to this. For example, the small-diameter placement surface 51B2 may be inclined such that the bottom surface on the small-diameter positioning portion 53 side is below the bottom surface on the small-diameter support portion 52 side.
Furthermore, although the small diameter support part 52 showed the structure provided in the position which supports the outer edge vicinity of the small diameter disc 200 in the small diameter mounting recessed part 51B, it is not restricted to this, It is provided in the approximate center of the small diameter mounting surface 51B2. It may be.
And although the small diameter positioning part 53 showed the structure with outer peripheral wall 51B1, it is not restricted to this, You may newly be provided in a different part from outer peripheral wall 51B1.
The pair of the small-diameter support portions 52 provided at substantially symmetrical positions around the virtual line C including the center of the small-diameter placement surface 51B2 and parallel to the insertion direction of the disc tray 50 is shown. I can't. For example, the small diameter support portion 52 may be provided at an asymmetric position around the imaginary line C, or one or more than three may be provided.

[Effects of Embodiment]
The disk device 100 is provided with a disk tray 50 having a small-diameter placement surface 51B2, a pedestal 21 for rotating the small-diameter disk 200, a turntable 24, and a recording / reproducing means 35. Further, the small-diameter mounting surface 51B2 protrudes upward, and when the small-diameter disc 200 rotates, the small-diameter support portion 52 supports the position closer to the end surface portion 15B than the rotating tip of the small-diameter disc 200, and the small-diameter disc 200. A small-diameter positioning portion 53 that abuts against the outer edge.
During the rotation of the turntable 24, the small-diameter disk 200 contacts the small-diameter support portion 52 at a position closer to the end surface portion 15B than the rotation tip. For this reason, the vibration of the small-diameter disk 200 is reduced. Therefore, the small-diameter disc 200 is not displaced from the small-diameter placement surface 51B2, and is not damaged during the carry-out operation of the disc tray 50.
Further, since the small-diameter disk 200 is inclined by the small-diameter support part 52 and the small-diameter positioning part 53, the own weight of the small-diameter disk 200 is greatly applied to the small-diameter positioning part 53. Therefore, when the height dimension of the outer peripheral wall 51B1, which is the step between the large-diameter mounting surface 51A and the small-diameter mounting recess 51B, is small, when the opening 51C is formed in the outer peripheral wall 51B1, or when the disc tray 50 vibrates. Thus, the small-diameter disk 200 will not be misaligned even when the carrying operation is performed.

1 is an exploded perspective view showing a schematic configuration of a disk device according to an embodiment of the present invention. The top view which shows the relationship between the chassis of the disc apparatus in the said embodiment, and a disc tray. Sectional drawing which shows the 1st carrying-out state of a disk tray. Sectional drawing which shows the 2nd carrying-out state of a disk tray. Sectional drawing which shows the 3rd carrying-out state of a disk tray. Sectional drawing which shows the 4th carrying-out state of a disk tray. Sectional drawing which shows the 5th carrying-out state of a disk tray.

Explanation of symbols

15 ......... Chassis 21 ......... Pedestal part 24 ......... Turntable as disk holding part 35 ......... Recording / reproducing means as information processing means 50 ......... Disc tray 51A ... As a large-diameter disk mounting surface Large-diameter mounting surface 51B ...... small-diameter mounting concave portion 51B1 as a small-diameter disk mounting portion 51B1 outer peripheral wall 51B2 small-diameter mounting surface as a small-diameter disk mounting surface 52 small-diameter support portion as a small-diameter disk supporting portion 53... Small diameter positioning part as a small diameter disk positioning part 100... Disk device 200.

Claims (4)

The chassis,
A disc tray for inserting and ejecting a disc-shaped recording medium into and out of the chassis with the processing surface facing downward;
Centering on the one end side positioned on the chassis insertion direction side below the disk tray, the other end side positioned on the ejection direction side than the one end side is provided so as to be rotatable in the direction of contacting and separating from the recording medium. The pedestal part,
A disk holding portion that is provided on the rotating front end side of the pedestal portion and holds the recording medium in a detachable manner;
An information processing means provided on the pedestal portion, and performing processing on the recording medium while moving between a rotation distal end side and a rotation proximal end side of the pedestal portion;
The disc tray is
A large-diameter disk mounting surface on which the first recording medium is mounted in a state in which movement in the surface direction is restricted;
A small-diameter disk mounted on the large-diameter disk mounting surface on which the second recording medium having a smaller diameter than the first recording medium is mounted in a state where movement in the surface direction is restricted. A placement unit;
An opening formed from the approximate center of the large-diameter disk mounting surface to the end in the insertion direction, and a tray opening that allows the disk holding part to appear and the information processing means is exposed.
The small-diameter disk mounting portion is
A small-diameter disk mounting surface on which the second recording medium is mounted concentrically with the first recording medium below the large-diameter disk mounting surface;
Projecting upward from a position on the ejection direction side on the small-diameter disk mounting surface, and when the second recording medium is rotated with the rotation of the pedestal portion, than the rotating front end of the second recording medium. A small-diameter disk support that supports the position of the rotating proximal end;
A small-diameter disk positioning portion provided at a position in contact with the outer edge on the insertion direction side in the second recording medium;
A disk device comprising: The disk device according to claim 1,
On the large-diameter disk mounting surface, a concave recess is formed,
The small-diameter disk mounting surface is a bottom surface of the recess,
The disk device, wherein the small-diameter disk positioning portion is an outer peripheral wall of the recess. The disk apparatus according to claim 1 or 2,
The small-diameter disk support portion is provided at a position for supporting the vicinity of the outer edge of the second recording medium. 4. The disk device according to claim 1, wherein:
A pair of the small-diameter disk support portions are provided at substantially symmetrical positions around a virtual line that includes the center of the small-diameter disk mounting surface and is parallel to the insertion direction.

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