JP4369380B2 - Disk drive device - Google Patents

Description

  The present invention relates to a disk drive device, and more particularly to a disk drive device including a traverse mechanism that swings in conjunction with a moving operation of a tray holding a recording medium.

  2. Description of the Related Art Conventionally, a disk drive device is known as a device that performs at least one of a signal recording operation and a reproducing operation on a disk-shaped recording medium (hereinafter referred to as a disk). A disk drive device is a disk drive having an optical pickup support unit that supports a mounted optical pickup so as to be movable in a predetermined direction and range, and a motor and a turntable for reading information recorded on the disk. The optical pickup mounted on the optical pickup support unit records and reproduces signals with respect to the disc by rotating the turntable holding the disc with a motor. Or, a recording or reproducing operation is performed.

As a typical insertion method for transporting a disk to a predetermined position in such a disk drive apparatus, a predetermined position of a mounting member (hereinafter referred to as a tray) movable in a direction orthogonal to one surface of the apparatus is used. There are a tray system in which a disk is placed and the disk is inserted into the disk drive apparatus together with the tray, and a slot-in system in which the disk is directly inserted into the disk drive apparatus.
These insertion methods are appropriately selected according to the purpose of use. However, in the case of a disk drive device adopting the slot-in method, the disk is easily damaged, and in principle, an 8 cm disk cannot be used. Disk drive devices that employ a tray system that is inexpensive in manufacturing and excellent in operability are widely used.

  However, in the case of the conventional disk drive device adopting the tray system, the turntable is fixed to the housing, and the disk placed on the tray is set to the reading position, that is, a predetermined position on the upper surface of the turntable. Therefore, it is necessary to provide a disk transport mechanism for transporting the disk by moving it in a total of two directions, a direction parallel to and perpendicular to the rotation surface of the turntable. As a result, the internal structure of the disk drive device becomes complicated and the manufacturing cost increases.

  Therefore, as a disk drive device capable of simplifying the internal structure, as shown in FIG. 4, the gear 102 and meshing according to the insertion or ejection operation of the tray 100 on which the disk is placed with respect to the casing 101. When the drive mechanism 104 composed of the portion 103 is interlocked, the swinging member 109 on which the optical pickup support member 106 on which the optical pickup 105 is mounted and the turntable 108 connected to the motor 107 is disposed swings. A front loading player 111 has been developed that swings in the upper surface direction A of the housing 101 around the shaft 110 and clamps a disk placed on the tray 100 (see, for example, Patent Document 1).

  Also, in the disk drive device adopting the tray system, the type of the disk is detected by a detection unit comprising a photo sensor during the disk clamping operation, and the optical pickup is positioned corresponding to the type of the disk based on the detection result. Was configured to move to. However, when the type of the disk is detected by the photosensor, there is a problem that the type of the disk is mistaken due to ambient light or the like.

Therefore, as a disk drive device capable of accurately detecting the type of the disk, a tray that can be displaced between a mounting / removing position for performing the disk mounting / removing operation and a playback position for performing the disk reproducing operation is provided at the playback position. A disc detection device for a disc player that detects the presence or absence of a disc by a tilt sensor that moves with an optical pickup when the disc is clamped by movement has been developed (see, for example, Patent Document 2).
Japanese Utility Model Publication No. 6-89654 Patent No. 2640064 specification

However, in recent years, the motor 107 that rotates the turntable has been downsized, and the thickness T ₁ of the motor 107 is smaller than the total thickness T ₂ of the optical pickup 105 and the optical pickup support member 106. Therefore, when the invention described in the above-mentioned Patent Document 1 is applied as it is, as shown in FIG. 4, the rocking motion is based on the total thickness T ₂ of the optical pickup 105 and the optical pickup support member 106. thickness T ₃ of the member is defined. Further, in order to insert the tray 100 into the housing 101, it is necessary to swing the swinging member 109 over a predetermined range, and a space in which the swinging member 109 can swing is formed inside the housing 101. Must be secured.
Therefore, when the thickness T ₃ of the swing member 109 is large, it is necessary to increase the height H of the space inside the housing 101, it is difficult to reduce the thickness of the disk drive unit The problem of becoming.

In addition, the optical pickup support member 106 in the disk drive device is normally positioned close to the turntable 108 when the tray 100 is ejected outside the housing 101 as described in Patent Document 2. It is arranged.
When the optical pickup support member 106 is positioned in the vicinity of the turntable 108 as described above, the turntable 108 and the optical pickup support member 106 as shown in FIG. Even when the integrated traverse mechanism 113 is used, the total thickness T _{2 of} the optical pickup 105 and the optical pickup support member 106 is large, so that one end of the optical pickup support member 106 is connected to the chassis 112. It protrudes greatly from the lower surface side.
For this reason, in order to swing the traverse mechanism 113, it is necessary to increase the height dimension H of the space inside the casing 101, which causes a problem that it is difficult to reduce the thickness of the disk drive device. ing.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a disk drive device capable of reducing the thickness of the disk drive device.

In order to solve the above problems, a disk drive device according to the invention described in claim 1
A turntable that rotates while holding a disc,
A moving mechanism for moving the disk from the outside of the housing to the turntable inside, and moving the disk from the turntable inside the housing to the outside ;
An optical pickup that performs reproducing and / or recording operations on the disc , an optical pickup support member that mounts the optical pickup, and a support frame that includes one or more guide members that guide the optical pickup support member in a predetermined direction; ,
A swinging means provided on the support frame and configured to swing the support frame in a predetermined direction in conjunction with the movement of the disk ;
The swing means includes a drive mechanism that displaces the position of the optical pickup support member in conjunction with the swing operation of the support frame;
The optical pickup supporting member swings the swinging means in the guide member in conjunction with the swinging motion of the support frame in a state where the disk is moved from the outside of the housing to the internal turntable. Disposed from a standby position close to the moving center to a position close to the turntable .

The disk drive device according to the invention described in claim 2 is the disk drive device according to claim 1,
The optical pickup support member is displaced to the standby position in the guide member in conjunction with the swinging operation of the support frame in a state in which the disk is moved from the turntable inside the housing to the outside. It is characterized by being arranged .

The disk drive device according to the invention described in claim 3 is the disk drive device according to claim 1 or 2,
The standby position is a position closest to the swing center of the swing means in the guide member .

The disk drive device according to the invention described in claim 4 is the disk drive device according to any one of claims 1 to 3,
The swinging means is a shaft mechanism including a swinging shaft disposed in the housing and the support frame, and a bearing portion .

  According to the present invention, a mounting member that holds a recording medium and is movable inside and outside the housing, an optical pickup that performs reproduction and / or recording operations on the recording medium, and an optical pickup support that includes the optical pickup. A support frame having one or a plurality of guide members for guiding the member and the optical pickup support member in a predetermined direction, and provided on the support frame, and swinging the support frame in a predetermined direction in conjunction with the movement of the mounting member And in the state where the mounting member is outside the housing, the optical pickup support member is in a standby position close to the swing center of the swing means in the guide member, that is, the swing means. Since the optical pickup member protrudes from one surface of the support frame, the support frame swing range is reduced as the mounting member is inserted and ejected. You It is, it is possible to reduce the height of the space inside the housing, which makes it possible to reduce the thickness of the disk drive apparatus.

The best mode for carrying out the present invention will be described below with reference to the drawings. However, although various technically preferable limitations for implementing the present invention are given to the embodiments described below, the scope of the invention is not limited to the following embodiments and illustrated examples.
A disk drive apparatus according to the present invention will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the disk drive device 1 according to this embodiment includes a substantially rectangular parallelepiped housing 2, and an opening (see FIG. (Not shown) is formed. As shown in FIG. 2, a substantially square tray 3 having a substantially circular recess (not shown) on which a disk (not shown) is placed is provided in the opening. .

  The tray 3 is moved in the longitudinal direction of the housing 2 by a user operating an operation unit (not shown), and is inserted into the housing 2 through the opening. ing. In addition, a flat plate-shaped closing plate (not shown) molded to a size that matches the opening of the housing 2 is provided at one end of the tray 3 that is orthogonal to the moving direction. As the tray 3 is inserted, the opening is closed.

  A traverse mechanism 5 having a substantially rectangular chassis 4 as shown in FIG. 3 is provided inside the housing 2. As shown in FIGS. 1 and 2, a substantially circular turntable 7 connected to the spindle motor 6 is provided on one end side in the longitudinal direction of the chassis 4. Also, on the same surface as the turntable 7, as shown in FIG. 3, a long sub guide member 8 extending in a rail shape and a main guide member 9 having a substantially cylindrical shape are parallel to each other. Are spaced apart from each other.

  An optical pickup support member 10 is provided between the sub guide member 8 and the main guide member 9. One surface of the optical pickup support member 10 rotates while being held by the turntable 7. An optical pickup 11 that performs signal recording and reproducing operations on a disc (not shown) is provided.

  On the side surface of the optical pickup support member 10 that faces the sub guide member 8, a sub guide member receiving portion 12 having a concave cross section that is engaged with the sub guide member 8 faces the main guide member 9 of the optical pickup support member 10. Each side surface is provided with a main guide member receiving portion 13 having an insertion hole (not shown) through which the main guide member 9 is inserted, and the pickup supporting member 10 has the sub guide member receiving portion 12 as the sub guide. The main guide member 9 is engaged with the member 8 and moved along the guide direction X while being guided by the sub guide member 8 and the main guide member 9 with the main guide member 9 being inserted through the insertion hole of the main guide member receiving portion 13. It is possible.

  Further, the optical pickup support member 10 described above is located in the vicinity of the swing shaft 15 in the sub guide member 8 and the main guide member 9, that is, in the swing center, when the tray 3 is discharged to the outside of the housing 2. It is arranged at a position closest to the rocking shaft 15.

  Note that the optical pickup support member 10 in the present embodiment is disposed at a position closest to the swing shaft 15 of the sub guide member 8 and the main guide member 9 when the tray 3 is ejected to the outside of the housing 2. However, when the traverse mechanism 5 swings, the surface of the optical pickup support member 10 opposite to the surface on which the optical pickup 11 is mounted does not contact the lower surface of the housing 2. For example, the auxiliary guide member 8 and the main guide member 9 may wait at an intermediate position.

  Further, on one end in the longitudinal direction of the chassis 4 and on both sides in the direction orthogonal to the guide direction X, as shown in FIG. 1 and FIG. ing. A rocking shaft 15 provided in the housing 2 is passed through the bearing portion 14, and the traverse mechanism 5 is pivotally supported by the rocking shaft 15 so as to be rockable.

  In addition, although the bearing part 14 and the rocking | fluctuation shaft 15 in this embodiment are each arrange | positioned by the chassis 4 and the housing | casing 2, about the member arrange | positioned, it is not specifically limited, For example, The chassis 4 may be provided with the swing shaft 15, and the housing 2 may be provided with the bearing portion 14.

  In such a traverse mechanism 5, the traverse mechanism 5 is swung in conjunction with the operation of the tray 3 on which the disk is placed, and at the same time, an optical pickup support member 10 provided in the chassis 4 of the traverse mechanism 5 is provided. A drive mechanism (not shown) that moves along the guide direction X is provided.

  The drive mechanism described above is not particularly limited as long as the traverse mechanism 5 can be swung in conjunction with the operation of the tray 3 and the position of the optical pickup support member 10 can be displaced. For example, it may be mechanically driven using a gear and a meshing member, or electrically driven using a sensor and a control circuit.

  Further, the disk drive device 1 according to the present embodiment employs a tray system in which a disk is placed on the tray 3 and then inserted into the housing 2 together with the tray 3, but the insertion system is particularly limited. For example, other insertion methods such as a slot-in method may be adopted.

Next, the operation of the disk drive device 1 in this embodiment will be described.
When reading the information recorded on the disc, the disc 3 is placed in the concave portion of the tray 3 that has been ejected to the outside of the casing 2, and the tray 3 is moved to the casing 2 by operating an operation unit (not shown). Is inserted inside. At this time, the drive mechanism is interlocked with the insertion operation of the tray 3, so that the traverse mechanism 5 is tilted toward the lower surface of the housing 2 from the tilted state toward the upper surface of the housing 2 as shown in FIG. In other words, it is swung in the clockwise direction R ₁ around the swing shaft 15.
Simultaneously with such a swinging operation, the optical pickup 11 and the optical pickup support member 10 that are disposed at positions closest to the swinging shaft 15 of the guide members 8 and 9 are disposed along the guide direction X. It is moved to the installed side.
Thereafter, when the upper surface of the inserted tray 3 and one surface of the traverse mechanism 5 become substantially parallel, the swinging operation of the traverse mechanism 5 is restricted, and the optical pickup 11 and the optical pickup support member 10 are turned. It is arranged at a position close to the table 7. Eventually, the disc placed on the tray 3 is clamped, and the information recorded on the disc is read by the optical pickup 11 to complete a series of operations.

On the other hand, when exchanging the disk, the user operates the operation unit to eject the tray 3 of the disk drive device 1 to the outside of the housing 2. At this time, the drive mechanism is interlocked with the discharge operation of the tray 3, so that the traverse mechanism 5 moves from the state substantially parallel to the upper surface and the lower surface of the housing 2 as shown in FIG. Is swung in the counterclockwise direction R ₂ around the rocking shaft 15.
At the same time as the swinging operation, the optical pickup 11 and the optical pickup support member 10 disposed on the side of the traverse mechanism 5 on which the turntable 7 is disposed move along the sub guide member 8 and the main guide member 9. Thus, it is moved to the side where the swing shaft 15 is disposed.
Thereafter, when the traverse mechanism 5 is tilted toward the lower surface of the housing 2 to a predetermined angle, the rotation of the traverse mechanism 5 is restricted, and the optical pickup 11 and the optical pickup support member 10 are guided by the guide members 8 and 9. Is disposed at a position closest to the swing shaft 15. Eventually, the tray 3 on which the disk is mounted is ejected to the outside of the housing 2, and a series of operations is completed.

  At this time, since the optical pickup support member 10 is disposed at a standby position in the vicinity of the swing shaft 15 of the guide members 8 and 9 in a state where the tray 3 exists outside the housing 2, the traverse mechanism 5 Even when one end of the optical pickup support member 10 protrudes from one surface of the chassis 4, the range of the space inside the housing 2 can be reduced by reducing the swing range of the chassis 4 that accompanies the insertion and ejection operations of the tray 3. The height dimension H can be reduced.

  Further, since the standby position is the position closest to the swing center of the swinging means in the guide members 8 and 9, the height dimension H of the space inside the housing 2 can be further reduced.

  Further, since the swinging means is a shaft mechanism composed of the swing shaft 15 disposed in the housing 2 and the chassis 4 and the bearing portion 14, the chassis 4 is swung in a predetermined direction with a simple configuration. Can be made.

  Further, since the swinging means includes a drive mechanism for displacing the position of the optical pickup support member 10 in conjunction with the swing operation of the chassis 4, the swing operation of the chassis 4 and the movement operation of the optical pickup support member 10 are performed. Are simultaneously performed, it is possible to shorten the operation time required until the reading operation with respect to the disk.

  As described above, according to the disk drive device 1 of the present embodiment, the tray 3 that holds the disk and is movable to the inside and outside of the housing 2, and the optical pickup 11 that performs reproduction and / or recording operations on the disk, The chassis 4 provided with the optical pickup support member 10 on which the optical pickup 11 is mounted, the guide members 8 and 9 for guiding the optical pickup support member 10 in a predetermined direction, and the chassis 4 are moved in conjunction with the movement of the tray 3. And the optical pickup support member 10 in the state where the tray 3 exists outside the housing 2, the swing center of the swing means in the guide members 8 and 9 Even if one end of the optical pickup member 10 protrudes from one surface of the chassis 4 of the traverse mechanism 5 because it is disposed at a close standby position, the tray By reducing the swing range of the chassis 4 that accompanies the insertion and ejection operations, the height H of the space inside the housing 2 can be reduced, thereby reducing the thickness of the disk drive device 1. Can be planned.

  Further, since the standby position is a position closest to the swing center of the swing means in the guide members 8 and 9, the height dimension H of the space inside the housing 2 can be further reduced. Thus, the disk drive device 1 can be efficiently thinned.

  Further, since the swinging means is a shaft mechanism composed of the swing shaft 15 disposed in the housing 2 and the chassis 4 and the bearing portion 14, the chassis 4 is swung in a predetermined direction with a simple configuration. This makes it possible to reduce manufacturing costs.

  Further, since the swinging means includes a drive mechanism for displacing the position of the optical pickup support member 10 in conjunction with the swing operation of the chassis 4, the swing operation of the chassis 4 and the movement operation of the optical pickup support member 10 are performed. Are simultaneously performed, it is possible to shorten the operation time required for the reading operation with respect to the disk, thereby improving the operability.

It is sectional drawing which shows the internal structure of a disk drive apparatus. It is sectional drawing which shows the aspect inside a disk drive apparatus at the time of tray discharge | emission. It is sectional drawing which shows the aspect inside a disc drive apparatus at the time of tray insertion. It is sectional drawing which shows the internal aspect of the disc drive apparatus in a prior art. It is sectional drawing which shows the internal structure of the disc drive apparatus at the time of tray insertion in a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Disc drive apparatus 2 Housing | casing 3 Tray 4 Chassis 5 Traverse mechanism 6 Spindle motor 7 Turntable 8 Sub guide member 9 Main guide member 10 Optical pick-up support member 11 Optical pick-up 14 Bearing part 15 Swing axis H Height dimension X Guide direction R ₁ and R ₂ swing direction

Claims (4)

A turntable that rotates while holding a disc,
A moving mechanism for moving the disk from the outside of the housing to the internal turntable and moving the disk from the turntable inside the housing to the outside ;
An optical pickup that performs reproducing and / or recording operations on the disc , an optical pickup supporting member on which the optical pickup is mounted, and a support frame including one or more guide members that guide the optical pickup supporting member in a predetermined direction; ,
A swinging means provided on the support frame and configured to swing the support frame in a predetermined direction in conjunction with the movement of the disk ;
The swinging means comprises a drive mechanism for displacing the position of the optical pickup support member in conjunction with the swinging operation of the support frame,
The optical pickup supporting member swings the swinging means in the guide member in conjunction with the swinging operation of the support frame in a state where the disk is moved from the outside of the housing to the internal turntable. A disk drive device, wherein the disk drive device is arranged to be displaced from a standby position close to a moving center to a position close to the turntable . The optical pickup support member is displaced to the standby position in the guide member in conjunction with the swinging operation of the support frame in a state where the disk is moved from the turntable inside the housing to the outside. The disk drive apparatus according to claim 1, wherein the disk drive apparatus is disposed in a manner that 3. The disk drive device according to claim 1, wherein the standby position is a position closest to a swing center of the swing means in the guide member. The disk according to any one of claims 1 to 3, wherein the rocking means is a shaft mechanism including a rocking shaft disposed in the housing and the support frame and a bearing portion. Drive device.

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