JP2007207321A - Disk drive device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk drive device in which relative position variation of a disk and a printer head is suppressed and which can form accurately desired print on a label plane. <P>SOLUTION: The device is the disk drive device provided with a disk drive part DR-U in which the disk is rotated in the prescribed direction, while information is recorded and/or information recorded in the information storage plane is reproduced for the information recording plane, and an ink jet type printing part PR-U performing printing by injecting ink for a label plane of the disk, the printer head 21 of the printing part is placed on a first supporting member 10 on which a vibration source 3 of the disk drive part is mounted. When vibration is caused, also the printer head can be vibrated synchronizing. Thereby, since distance between the dusk and the printer head can be kept constant, high dignified printing can be performed always. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a disk drive device having a function of printing on a disk. More specifically, the present invention relates to a disk drive device in which a printing function for printing desired characters or pictures on a label surface of a disk such as a CD or a DVD is added.

  In recent years, disk-shaped recording media (hereinafter simply referred to as disks) have been widely used for CDs, DVDs, and the like, and various types of disk drive devices for driving these disks have been provided. It has become so. There is a demand for a disk drive device from a read-only device that only reproduces pre-recorded information to a recording / reproduction device that can arbitrarily record (write) information that the user wants to save on the disk. There is a transition situation.

  By the way, generally a disc in a recordable blank state has the same appearance, and the content of information recorded by the user cannot be confirmed. Therefore, there are many cases where the user writes down the information content recorded by the user on the label side of the disc (the side opposite to the information recording side for recording information). However, handwriting every time a recording disk is created is troublesome, and there are problems such as poor appearance when characters on the disk surface are handwritten.

  Therefore, recently, a disk drive device having a function of printing on the label surface of the disk has been provided. Such a disk drive device is very convenient because information can be recorded on the disk and characters or the like that can confirm the recorded contents can be printed on the label surface. For example, in a disk drive device that has been proposed in the past, label printing is performed by ejecting ink particles while moving a printer head having an inkjet nozzle arranged facing the label surface while rotating the disk in the radial direction. There is something to do (Japanese Patent Application Laid-Open No. 5-234005).

  However, if the printer head is moved in the radial direction as in the disk drive device, the size of the device increases. Therefore, Patent Document 1 proposes a disk drive device including a printing apparatus in which a printer head is fixed to a label surface of the disk. This disk drive device can be simplified in structure and can form an annular character on the label surface.

JP-A-6-31906

  In the disk drive device disclosed in Patent Document 1, a printer head is fixed to a column erected from a base structure such as a housing, and the printer head is opposed to a label surface. By the way, a turntable on which a disk is mounted, a spindle motor that rotates the turntable, and an optical pickup device that records and reproduces information by driving an optical system with respect to the disk are mounted on a support member such as a mechanical chassis. It is common. The mechanical chassis is assembled to the base structure with a vibration absorber such as a damper interposed. In this way, the mechanical chassis is assembled to the base structure via the damper because the spindle motor, turntable, etc. mounted on the mechanical chassis serve as the vibration source, It is to do.

  However, even if the vibration isolating structure as described above is employed, the relative vibration (small shaking) of the mechanical chassis with respect to the base structure cannot be completely removed. Therefore, when the printer head is fixed with respect to the base structure as in the disk drive device of Patent Document 1, the distance between the label surface and the printer head varies when vibration occurs. When printing on the label surface of the disc, if the distance is changed, the print quality is lowered and the reliability of the apparatus is lowered.

  The present invention has been made to solve the above-described conventional problems, and provides a disk drive device capable of accurately forming desired printing on a label surface by suppressing a relative positional change between the disk and the printer head. The purpose is to provide.

  The object is to rotate a disk in a predetermined direction and record information on the information recording surface of the disk and / or reproduce information recorded on the information storage surface, and a label surface of the disk A disk drive device including an ink jet type printing unit that performs printing by ejecting ink to the printer, wherein the printer head of the printing unit is mounted with a vibration source of the disk drive unit. This is achieved by a disk drive device characterized in that it is placed on a support member.

  According to the present invention, since the printer head of the printing unit is mounted on the first support member on which the vibration source of the disk drive unit is mounted, the printer head also vibrates synchronously when vibration occurs. Become. Therefore, this disk drive device can maintain the distance between the disk and the printer head substantially constant, and can always form high-quality printing on the label surface.

  If the printer head is mounted on the second support member and the second support member is connected to the first support member, then the printer head has the same structure as that mounted on the first support member. can do.

  The vibration source may include at least a turntable that rotatably holds the disk and a spindle motor that rotates the turntable in a predetermined direction.

  According to the present invention, it is possible to provide a disk drive device capable of accurately forming a desired print on a label surface while suppressing a relative position change between the disk and the printer head.

  Hereinafter, a disk drive device according to an embodiment of the present invention will be described with reference to the drawings. This disc drive device has the original function of recording information on the disc and reproducing the information recorded on the disc, and the title, creation date, creator, and images related to these on the label side of the disc. This is a composite device that also has a printing function. FIG. 1 is a perspective view showing the entire disk drive device 1 of the embodiment. Further, FIG. 2 is a perspective view showing a disk drive unit DR-U which is a disk drive unit of the disk drive device 1 taken out. FIG. 3 is a perspective view showing the printing unit PR-U that is a printing unit of the disk drive device 1.

  As shown in FIG. 1, the disk drive device 1 has a structure in which a printing unit PR-U is assembled on a disk drive unit DR-U, and a disk D is set and rotated on the disk drive unit DR-U side. Records or reproduces information. On the other hand, the printing unit PR-U performs printing on the label surface on the upper surface side of the disc D.

  First, the configuration on the disk drive unit DR-U side will be described with reference to FIG. The disk drive unit DR-U is housed in a case (exterior) 2 serving as a base structure. The disk drive unit DR-U includes a spindle motor 3 and an optical pickup device 4. The spindle motor 3 rotates the turntable 5 on which the disk D is placed in a predetermined direction. The optical pickup device 4 emits laser light corresponding to information to be recorded on the disk D and laser light for reproducing information recorded on the disk D. The optical pickup device 4 is formed to be movable in the radial direction of the disk along the guide shafts 6 and 7.

  The components such as the spindle motor 3 and the optical pickup device 4 described above are mounted on a mechanical chassis 10 serving as a first support member. When the spindle motor 3 is driven to rotate the disk D, vibration is generated. This vibration includes an eccentric component of the disk D, a change in airflow around the disk D, a vibration of the spindle motor 3 itself, and the like. When vibration propagates to the surroundings, it causes noise and causes errors when information is recorded and reproduced by the optical pickup device 4. Further, when the optical system of the optical pickup device is driven, the optical pickup device 4 itself may be a vibration source.

  Therefore, the optical pickup device 4 is mounted on the mechanical chassis 10 together with the spindle motor 3. Further, the mechanical chassis 10 is constructed as a vibration-proof structure by being assembled to the case 2 serving as a base structure via a damper 11 that absorbs vibration.

  Further, the printing unit PR-U assembled on the upper side of the disk drive unit DR-U will be described with reference to FIG. In the printing unit PR-U, a structure for printing on the label surface of the disc is assembled to the support frame 20 serving as a second support member. The support frame 20 is provided with a rectangular cutout 20CR. The printer head 21 is fitted in the notch 20CR. On the lower surface of the printer head 21, nozzles (not shown) for ejecting ink are provided. The printer head 21 is set to reciprocate in the disk radial direction RD by an actuator 22. Therefore, it is possible to move the printer head 21 in the disk radial direction and form a desired character or image on the label surface.

  In this embodiment, the support frame 20 is provided with a clamper 23 for pressing the disk D set on the turntable 5 shown in FIG. 1 from above. After the disk D is set on the turntable 5, the clamper 23 is moved downward by a known mechanism (not shown) so as to approach the disk D. The clamper 23 and the turntable 5 are made of a material that is magnetically coupled, such as steel and a magnet. Since the clamper 23 is magnetically attracted when approaching the turntable 5, the disk D is sandwiched between them with a predetermined pressure. Therefore, when the turntable 5 is rotated by the spindle motor 3, the disk D rotates without being detached from the turntable 5. The clamper 23 is rotatably supported by a structure (not shown), and is driven by the rotation of the turntable 5.

  As described above, in the printing unit PR-U, the printer head 21 is movably supported by the support frame 20. The support frame 20 has a pair of connecting legs 25 and 26 on both sides. The lower ends of the leg portions 25 and 26 are bent into an L shape, and an opening for screwing is provided. In FIG. 3, only the lower end 25BE and the opening 25HL of the leg portion 25 are shown for convenience of drawing. The leg portions 25 and 26 have a structure for connecting to the mechanical chassis 10 on the disk drive unit DR-U side. The leg portions 25 and 26 of the support frame 20 are formed to be fixed on the mechanical chassis 10, and the support frame 20 is fixed to the mechanical chassis 10 by inserting screws into the openings 25 HL and fastening them.

  4 is a view taken in the direction of arrows AA in FIG. In FIG. 4, it can be confirmed that the support frame 20 is fixed to the mechanical chassis 10 with screws 27 and 28. As indicated by the symbol PT, the legs 25 and 26 of the support frame 20 are fixed on the mechanical chassis 10 by screws 27 and 28.

  In the disk drive device 1 having the above structure, since the leg portions 25 and 26 of the support frame 20 are connected to the mechanical chassis 10, the printer head 21 can be substantially mounted on the mechanical chassis 10. . Therefore, when the mechanical chassis 10 vibrates, the printer head 21 also vibrates synchronously. Since the disk D is mounted on the mechanical chassis 10, the distance between the printer head 21 and the label surface of the disk D can always be kept constant. Therefore, the disk drive device 1 can always form a clear print on the label surface stably. Such a disk drive device 1 can be provided as a highly reliable device.

  In the above embodiment, the case where the connecting leg portion is provided on the support frame 20 on the printing unit PR-U side is illustrated, but the connecting column portion is provided from the mechanical chassis 10 on the disk drive unit DR-U side. It is good also as a structure. Further, the mechanical chassis is formed in multiple stages in advance without connecting the first and second support members, and the vibration source such as the spindle motor of the disk drive unit DR-U and the printer head 21 of the printing unit PR-U are connected. You may make it mount together.

  In this embodiment, the case where the turntable 5, the spindle motor 3, and the optical pickup device 4 are all mounted on the mechanical chassis 10 is shown as an example. However, the present invention is not limited to such a structure. For example, in the case of a designed disk drive device, in particular, when vibrations of the spindle motor and the turntable become a problem, only these may be mounted on the mechanical chassis.

  The printing unit PR-U can drive the printer head 21 in the radial direction by the actuator 22. However, the printer head 21 may be fixed to the support frame 20 without providing the actuator 22. In this case, since the configuration can be simplified, the disk drive device 1 can be downsized.

  The preferred embodiment of the present invention has been described in detail above, but the present invention is not limited to the specific embodiment, and various modifications can be made within the scope of the gist of the present invention described in the claims.・ Change is possible.

1 is a perspective view showing an entire disk drive device of an embodiment. It is the perspective view which took out and showed disk drive unit DR-U of a disk drive device. It is the perspective view which took out and showed printing unit PR-U of a disk drive device. It is an AA arrow line view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Disk drive apparatus 3 Spindle motor 4 Optical pick-up apparatus 5 Turntable 10 Mechanical chassis (1st support member)
11 Damper 20 Support frame (second support member)
21 Printer head 22 Actuator 25, 26 Leg DR-U Disk drive unit PR-U Printing unit D Disk

Claims (3)

A disc drive unit for rotating the disc in a predetermined direction and recording information on the information recording surface of the disc and / or reproducing the information recorded on the information storage surface;
A disk drive device comprising an ink jet printing unit that performs printing by ejecting ink onto a label surface of the disk;
A disk drive device, wherein the printer head of the printing unit is mounted on a first support member on which a vibration source of the disk drive unit is mounted. 2. The disk drive device according to claim 1, wherein the printer head is mounted on a second support member, and the second support member is connected to the first support member. The disk drive device according to claim 1, wherein the vibration source includes at least a turntable that rotatably holds the disk and a spindle motor that rotates the turntable in a predetermined direction.

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