JP2006092583A - Disk apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk apparatus wherein a disk is loaded to an apparatus with a method being more easy and having the high degree of freedom. <P>SOLUTION: This apparatus has such constitution that the disk is loaded to the apparatus by providing a pocket part at a front cover arranged fixedly between a standby position of a disk placing plane of a turntable and a recording and reproducing position, by constituting a slant plane forwarding to the disk placing plane of the front cover from a groove part provided at a bottom plane of the pocket part, by transporting a centering means abutting to an outer periphery of the disk by placing the disk on the pocket part, and by centering a disk center to a turntable center. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a recording or reproducing disk such as a CD or a DVD, or a disk apparatus for recording or reproducing by mounting a case containing the disk.

In recent years, DVD recorders that can record and play back DVDs have begun to spread rapidly, but in order to further spread in the future, development of disk devices that are easy to use for anyone, such as universal design, in pursuit of ease of use Is required.
In a conventional disk device, as a disk mounting method, a tray system in which a disk is mounted by placing the disk on a tray coming out of the apparatus and pulling the tray into the apparatus is generally used.

  A conventional disk device will be described below.

  Conventionally, a disk device described in Japanese Patent Publication No. 4-67712 (Japanese Patent No. 1932473) is known.

In the conventional disk device, an opening for inserting and removing the tray is provided on the front panel of the disk-using device. After the disk is placed on the tray that has come out of the opening, the disk and the tray are set in a predetermined manner inside the apparatus. It is comprised so that it may be drawn in to a position (attachment / detachment position to a turntable). Then, when the disc on the tray drawn into the apparatus is mounted on the turntable and rotated at a predetermined rotational speed while being sandwiched between the clamper, for example, this disc is reproduced. The information signal recorded above is reproduced by a recording / reproducing apparatus. That is, the information signal is reproduced by moving the pickup for reading the signal according to the track position of the signal recorded in a predetermined range on the disc.
Japanese Patent Publication No. 4-67712

However, in the conventional configuration described above, in order to mount the disc on the apparatus, a series of operations of pulling out the tray, placing the disc on the tray, and then returning the tray to the apparatus again is necessary. There is a problem in that it is necessary to position and place the disk in the disk mounting recess provided on the tray, and it takes time to mount the disk, and the disk mounting method is less flexible.
SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object of the present invention is to provide a disk device that can be easily mounted by a method having a high degree of freedom.

  In order to achieve this object, the disk apparatus of the present invention is an apparatus capable of recording / reproducing a disk or a disk housed in a case, an optical pickup for recording / reproducing the disk, A turntable on which the pickup is rotated at a position where recording and reproduction can be performed is placed, a traverse that moves between the recording and reproduction position and the standby position, and a position between the standby position and the recording and reproduction position on the disk mounting surface of the turntable. A front cover having a disk mounting surface on which a disk is mounted and a centering means that contacts the disk and moves the center of the disk to the center of the turntable. In order to move the traverse from the standby position to the recording / reproducing position, an opening is formed in a part of the disc mounting surface of the front cover. The centering means has a first plane that passes through the center of the turntable and intersects the disk mounting surface of the turntable at a right angle, and a second plane that passes through the center of the turntable and intersects the first plane at a substantially right angle It is comprised with the centering member comprised so that it might contact | abut to a disk symmetrically centering | focusing on.

  With this configuration, it is possible to obtain an excellent effect that the disk can be easily mounted on the disk device and can be performed by a highly flexible method.

  As described above, the present invention provides an excellent effect that the disk can be easily mounted on the disk device and can be performed by a method having a high degree of freedom.

  The invention according to claim 1 of the present invention is an apparatus capable of recording / reproducing a disk accommodated in a case, a large-diameter disk, or a small-diameter disk, and an optical pickup for recording / reproducing the disk; A turntable on which a disk is placed and the optical pickup is rotated at a position where recording and reproduction can be performed; a traverse that moves between the recording and reproduction position and the standby position; and a standby position on the disk placement surface of the turntable; A disc is composed of a front cover having a disc placement surface on which a disc is placed and a centering means for contacting the disc and transferring the center of the disc to the center of the turntable. Part of the disc mounting surface of the front cover so that the traverse can be moved from the standby position to the recording / playback position. It has an opening, and a part of the front cover is provided with a pocket portion that can hold the disc. The first plane including the central axis of the optical pickup and the central axis of the turntable and the disc mounting surface of the front cover In the bottom surface of the pocket portion provided in a substantially vertical direction, a groove portion having a flat portion is formed at a position perpendicular to the first plane from the disc mounting surface of the front cover in the vertical direction of the disc mounting surface of the front cover. It is provided at a spaced position, and is characterized by forming an inclined surface from the disk mounting surface of the front cover to the groove, and if the disk is mounted in the pocket portion of the front cover, it can be easily placed on the outer periphery of the disk. A centering member can be contacted, and the center of the disc is automatically centered on the center of the turntable for stable and accurate centering. Since it has the effect of enabling the disk mounted easily.

  The invention described in claim 2 of the present invention is characterized in that, in the bottom surface portion of the pocket portion, a flat surface portion for placing a case storing a disk is provided on the bottom surface portion outside the groove portion. In addition, the disk and the case storing the disk can be stably placed together in the pocket portion.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is a plan view of a disk mounted state of the disk device according to Embodiment 1 of the present invention. Here, the disc mounting state is a state of the device when the user mounts the disc on the device. FIG. 2 is a side cross-sectional view of the disk device in a disk-mounted state, and is a cross section taken along the line ZZ in FIG. 3 and 5 are plan views of the disk device in the centering completion state of the disk, FIG. 4 is a side cross-sectional view of the disk device in the centering completion state of the disk device, and is a cross-sectional view taken along the line YY in FIG. 1 to 4 show an example using a large diameter disk (for example, a 12 cm diameter disk). 5 is a plan view when a disk (hereinafter referred to as a cartridge) housed in a case is mounted on the disk device, and FIG. 6 is a side sectional view when the cartridge is mounted on the disk device. It is a cross section.

  1 to 6, reference numeral 1 denotes a turntable on which a disk 4 is placed and rotates the disk 4 during recording or reproduction. Reference numeral 2 denotes an optical pickup that records or reproduces signals on the disk 4.

  Reference numeral 3 denotes a front cover that covers the front surface of the disk device, and 3a denotes a disk mounting surface provided on the front cover 3, which is provided in a direction orthogonal to the optical axis direction of the optical pickup 2. Reference numeral 3b denotes an opening provided in a part of the disk mounting surface 3a, which is provided so that the disk mounting surface of the turntable 1 can be inserted and moved when switching between the disk mounting state and the recording / reproducing state.

  Reference numeral 13 denotes a pocket portion provided at a position away from the turntable 1 and the optical pickup 2 on the disc placement surface 3a of the front cover 3, and the amount of protrusion of the pocket portion 13 in a direction substantially perpendicular to the disc placement surface 3a. Set the dimensions so that the disc and cartridge can be placed when the device is installed vertically (installation method in which the disc placement surface 3a is substantially perpendicular to the installation surface of the device). Has been. Further, as shown in FIG. 1, the pocket portion 13 is provided with a groove portion 13c at substantially the center in the longitudinal direction. When the disc 4 is placed, the disc 4 is placed in the groove portion 13c. As shown in FIG. 2, the groove portion 13c is provided with a first taper portion 13a on the disk mounting surface 3a side, and a second taper portion 13b at a position facing the first taper portion 13a. The tapered portion 13a and the second tapered portion 13b form a substantially V-shaped groove as shown in FIG. Further, as shown in FIG. 1, flat portions 13d are formed at both ends in the longitudinal direction of the groove portion 13c. When the cartridge 9 is placed in the pocket portion 13, the cartridge 9 is placed on the flat portion 13d. Is done. The flat portion 13d is provided at a position where the center of the disk 4 accommodated in the cartridge 9 and the center of the turntable 1 in the recording / reproducing state are aligned when the cartridge 9 is placed. That is, it becomes a centering reference plane when the cartridge 9 is placed. In the present embodiment, two tapered portions such as the first and second tapered portions 13a and 13b are provided. However, only the first tapered portion 13a may be provided. A front wall 13e is provided substantially in parallel to the disk mounting surface 3a with a predetermined distance from the disk mounting surface 3a. In the present embodiment, the front wall 13e is provided substantially parallel to the disk mounting surface 3a with an interval equal to or larger than the thickness of the cartridge 9 so that the cartridge 9 can be mounted. The front wall 13e prevents the cartridge from falling off when the cartridge 9 is mounted. As shown in FIG. 1, the pocket portion 13 is not provided over the entire width direction of the lower end of the disk mounting surface 3a, and the flat portion 13d and the groove portion 13c are provided only at the substantially central portion in the width direction. Yes. At both ends in the width direction (near the centering means 8), only the front wall 13e is provided, and the flat portion 13d and the groove portion 13c are not provided. This prevents interference between the centering means and the pocket portion 13 when the centering means 8 rotates.

  Reference numeral 4 denotes a disk that is a recording medium. In this embodiment, a large-diameter disk, a small-diameter disk, and a cartridge containing a large-diameter disk can be used.

  A traverse base 5 on which the turntable 1 and the optical pickup 2 are mounted is provided so as to be rotatable between a standby position and a recording / reproducing position about a support shaft 5a. The standby position is a position where the disk mounting surface of the turntable 1 and the optical pickup 2 do not protrude from the disk mounting surface 3a of the front cover 3 (that is, a state positioned below the disk mounting surface 3a). The recording / reproducing position is a position where the disk mounting surface of the turntable 1 protrudes from the disk mounting surface 3a of the front cover 3 so that the disk 4 can be mounted and recorded / reproduced. Although the rotation means of the traverse base 5 is not shown, it is composed of, for example, a motor and gears.

  A guide shaft 6 serves as a guide when the optical pickup 2 moves in the radial direction of the disk 4, and a drive motor 7 is used for moving the optical pickup 2.

  Reference numeral 8 denotes a centering means for transferring the disk 4 in the direction of arrow A so that the center of the disk 4 placed in the pocket portion 13 is aligned with the center of the turntable 1. In this embodiment, the centering means 8a to 8d. As shown in the figure, it is constituted by four centering means symmetrically in the vertical and horizontal directions about the turntable 1, and passes through the first plane including the central axis of the turntable 1 and the central axis of the optical pickup 2 and the center of the turntable 1. The disc 4 is configured to abut symmetrically about a second plane that intersects the first plane at a substantially right angle. The first and second centering means 8a and 8b support the upper side of the disk 4 when the disk 4 is placed on the disk placement surface 3a. The third and fourth centering means 8c and 8d When the disk 4 is mounted on the disk mounting surface 3a, the lower side of the disk 4 is supported. The centering means 8a to 8d support the disk 4 and move to the centering position with the disk 4 and the cartridge 9 retracted so that the disk 4 and the cartridge 9 can be mounted on the disk mounting surface 3a. Is pivotable about the support shaft 8e in the direction of the arrow A ′ or D ′, respectively, so that it can move between the second position (FIG. 3) in which the step is completed. In addition, gears 8f are provided at the ends of the centering means 8a to 8d, and the gears 8f are arranged around the support shafts 8e. Since the gears 8f provided on the centering means 8a and 8c mesh with each other and the gears 8f provided on the centering means 8b and 8d mesh with each other, the centering means 8a and 8c rotate at the same timing, and the centering The means 8b and 8d rotate at the same timing. Further, the centering means 8a to 8d constitute an internal mechanism so as to rotate at the same timing.

  Each of the centering means 8a to 8d is configured to have a length capable of scooping up the large diameter disk and the small diameter disk mounted on the disk mounting surface 3a of the front cover 3 or the pocket portion 13 by rotating.

  Each of the centering means 8a to 8d has a structure for stopping the rotation operation at the centering position. The structure includes a structure in which the centering means 8a to 8d is brought into contact with a stopper (not shown) and a slip means (see FIG. (Not shown) is provided so that the driving force is not transmitted to the gear 8f. In this embodiment, a large-diameter disk, a small-diameter disk, and a cartridge can be mounted. For example, when centering a cartridge and a large-diameter disk, the centering means is stopped by a slip mechanism and the small-diameter disk is centered. A configuration in which the rotation of the centering means is stopped by a stopper is conceivable. Alternatively, only the slip mechanism may be provided, and the rotation of the centering means may be stopped by the slip mechanism for all the disks. The means for stopping the rotation operation of the centering means 8a to 8d in this way is hereinafter referred to as “rotation stop means”.

  Further, the centering means 8a to 8d pass through the center of the turntable 1 and intersect with the first plane that intersects the disk mounting surface of the turntable 1 at a right angle, and intersect with the first plane through the center of the turntable. A pair of centering means 8a to 8d are provided symmetrically about the first plane and symmetrical about the second plane, respectively. It is comprised so that it may rotate. In addition, although not shown in figure about the drive means of each centering means 8a-8d, it is comprised with a motor, a gearwheel, and a rack, for example.

  Further, when the cartridge 9 is placed in the pocket portion 13, the centering means 8 a to 8 d are configured to stop the rotation operation by the rotation stop means when the centering means 8 a to 8 d are rotated and come into contact with the cartridge 9. The Although not shown, for example, when a switch type cartridge detection mechanism is provided in the apparatus and the cartridge 9 is placed in the pocket portion 13, the cartridge is detected, and the first to fourth centering means 8a to 8d are It is good also as a structure which controls and rotates so that rotation amount may be restrict | limited.

  Reference numeral 9 denotes a cartridge containing a disk, which is substantially rectangular. A shutter 9b is provided on the cartridge 9 so as to be freely opened and closed. By opening the shutter 9b, a part of the inner disk 4 can be exposed. Reference numerals 9 a and 9 c denote a left end portion and a right end portion of the cartridge 9.

  Reference numeral 10 denotes a clamp base for performing a clamping operation. When the disk 4 is mounted on the disk mounting surface 3a of the front cover 3 in the disk mounting state, the disk mounting is performed so that the disk 4 does not contact the clamp base 10. It stands by at a position where the mounting surface 3a does not overlap the projection surface of the optical pickup 2 in the optical axis direction. In this embodiment, the clamp base 10 stands by at a position on the right side of the disk mounting surface 3a. In addition, you may stand by in the position of the left side of the disk mounting surface 3a. The clamp base 10 is configured to be movable from the standby position to the clamp position in a direction orthogonal to the moving direction of the optical pickup 2 and parallel to the disk mounting surface of the turntable 1. The clamp position is a position where the clamp base 10 can be moved by moving directly above the disk mounting surface of the turntable 1. Although the movement means of the clamp base 10 is not shown, for example, a rack is provided on the clamp base 10 and is moved by a motor and gears. The clamp base 10 is configured not to contact the disk 4 mounted on the disk mounting surface 3a.

  A clamper 11 clamps the disk 4 on the disk mounting surface of the turntable 1 and is provided on the clamp base 10 so as to be movable in the vertical direction of the disk mounting surface of the turntable 1. The clamper 11 has a magnetic body, and is configured to be magnetically attached to the magnetic body on the disk mounting surface of the turntable 1.

  The operation of the disk device configured as described above will be described with reference to FIGS.

  First, a large-diameter disk mounting operation will be described with reference to FIGS.

  When the disc 4 is placed on the disc placement surface 3 a and the pocket portion 13 by the user, the center of the disc 4 is located at a position displaced downward from the center of the turntable 1. Further, as shown in FIG. 2, the pocket portion 13 is provided with the first and second taper portions 13a and 13b, so that the lower end of the disk 4 placed in the pocket portion 13 is the first and second tapes. Guided by the tapered portions 13a and 13b, a gap can be formed between the surface near the lower end of the disk 4 and the disk mounting surface 3a. At this time, the vicinity of the upper end of the disk 4 is in contact with the disk mounting surface 3a. Therefore, the disk 4 is placed in the pocket portion 13 while being inclined with respect to the disk placement surface 3a as shown in FIG.

  Further, the position restriction of the disk 4 in the left-right direction is restricted to some extent by the stepped part from the groove 13c to the flat part 13d and the centering means 8a to 8d. At this time, the centering means 8a to 8d are retracted so as not to be positioned on the projection surface of the disk mounting surface 3a.

  Next, when a recording / reproduction start switch (not shown) is turned ON, the clamp base 10 moves from the standby position shown in FIG. 1 in the direction of arrow B (in the direction orthogonal to the moving direction of the optical pickup 2), It moves to the clamp position shown in FIG.

  Next, the driving force is transmitted to the gear 8f, and the centering means 8a to 8d simultaneously rotate in the direction of the arrow A 'about the support shaft 8e. At this time, the vicinity of the tips of the centering means 8c and 8d passes through the space between the front wall 13e and the disc mounting surface 3a, and rotates without contacting or contacting the pocket portion 13. Then, the centering means 8a to 8d abut on the outer periphery of the disk 4, and the disk 4 can be moved in the direction of arrow A while the disk 4 slides on the disk contact surface of the centering means 8a to 8d. In the present embodiment, when the disk 4 is placed in the pocket portion 13, the center of the disk 4 is displaced downward from the center of the turntable 1. When placed, when the centering means 8a to 8d are rotated, the lower centering means 8c and 8d are first brought into contact with the outer peripheral portion of the disk 4, and the rotation operation is continued as it is to move the disk 4 to the arrow. The operation is to lift in the A direction. When the lower centering means 8c and 8d come into contact with the outer periphery of the disk 4, there is a gap between the disk 4 and the disk mounting surface 3a, so that the centering means 8c and 8d can surely scoop up the disk 4. . Next, the upper centering means 8a and 8b are in contact with and supported by the outer peripheral portion of the disk 4.

  When the disk 4 reaches the centering completion position shown in FIG. 3, the first to fourth centering means 8a to 8d stop the rotation operation by the rotation stop means. The rotation stopping means is provided to stop at a centering position where the center of the disk 4 moved by the first to fourth centering means 8a to 8d matches the center of the turntable 1.

  Thereafter, as shown in FIG. 2, the traverse base 5 rotates about the support shaft 5a in the direction of arrow C, the turntable 1 moves through the opening 3b to the recording / reproducing position, and the disk 4 moves to the turntable 1. It is lifted on the disk mounting surface. As a result, the clamper 11 is attracted to the disk mounting surface of the turntable 1 by the magnetic force, and the disk 4 is clamped by the turntable 1 and the clamper 11 to be in a recordable / reproducible state as shown in FIG.

  As shown in FIGS. 3 and 4, when the traverse base 5 completes moving to the recording / reproducing position, the centering means 8a to 8d rotate in the direction of the arrow D ′, respectively, and the outer periphery of the disk 4 placed on the turntable 1 Retreat to a position away from. Also at this time, the vicinity of the tips of the centering means 8c and 8d passes through the space between the front wall 13e and the disk mounting surface 3a and rotates without contacting or contacting the pocket portion 13. In the present embodiment, the first to fourth centering means 8a to 8d are moved to the first position shown in FIG. At this time, the disk 4 is held on the turntable 1. Then, the turntable 1 rotates to rotate the disk 4 so that information can be recorded on and reproduced from the disk 4. If the first to fourth centering means 8a to 8d are separated from the outer periphery of the disk 4 placed on the turntable 1, they are retracted to any position between the first position and the second position. May be.

  The disk loading operation is performed in the order of clamp base movement, centering, and traverse movement (clamping). However, the order is not necessarily required, and the order is changed if the disk can be moved to the clamped state. Also good.

  Next, a case where the disk 4 is removed from the apparatus will be described.

  When a disk ejecting switch (not shown) is turned on while the disk 4 is at the recording / reproducing position, the rotation of the turntable 1 is stopped and the rotation of the disk 4 is stopped. Then, the first to fourth centering means 8a to 8d rotate in the direction of the arrow A ′ from the first position (position away from the disk) to the second position that supports the outer periphery of the disk 4, and Support the outer periphery. At this time, the vicinity of the tips of the centering means 8c and 8d passes through the space between the front wall 13e and the disc mounting surface 3a, and rotates without contacting or contacting the pocket portion 13. Thereafter, the traverse base 5 rotates in the direction of arrow F about the support shaft 5a, and moves from the recording / reproducing state to the standby state shown in FIG. Accordingly, the disk 4 held by the turntable 1 and the clamper 11 is separated from the disk mounting surface of the turntable 1 and the clamper 11.

  Thereafter, the centering means 8a to 8d rotate in the direction of the arrow D ', and the disk 4 slides on the disk contact surfaces of the centering means 8c and 8d and is placed on the pocket portion 13. Also at this time, the vicinity of the tips of the centering means 8c and 8d passes through the space between the front wall 13e and the disk mounting surface 3a and rotates without contacting or contacting the pocket portion 13. Next, the clamp base 10 moves from the clamp position shown in FIG. 3 in the direction of arrow E and moves to the standby position shown in FIG. Thereby, the disk 4 can be taken out.

  Note that the above-described disk ejecting operation is performed in the order of releasing the clamp, releasing the centering, and retracting the clamp base. However, the order is not necessarily required. If the disk can be moved from the clamped state to the removable state, the order is not limited. It may change.

  Note that this apparatus can also mount a small-diameter disk. The small-diameter disk mounting operation is substantially the same as the above-described large-diameter disk mounting operation, but the rotation amounts of the centering means 8a to 8d are different. Since the small-diameter disk has a smaller diameter than the large-diameter disk, a large amount of rotation is required when centering. Further, the length and arrangement of the centering means 8a to 8d need to be optimized so that the small-diameter disk placed on the pocket portion 13 can be held. The centering means 8a to 8d of the present embodiment have a length and an arrangement that can hold both a large diameter disk and a small diameter disk. Also, the small-diameter disk placed in the pocket portion 13 creates a gap between the first and second taper portions 13a and 13b and the disk placement surface 3a in the vicinity of the lower end of the disk, as in the case of the large-diameter disk described above. Can be made. Thereby, the small diameter disk can be surely scooped up by the centering means 8c and 8d. Detailed description of the operation is omitted.

  Next, the mounting operation of the cartridge 9 will be described with reference to FIGS.

  As shown in FIG. 5, the cartridge 9 can be mounted on the disk mounting surface 3 a and the flat portion 13 d of the pocket portion 13 in a state where the first to fourth centering means 8 a to 8 d are in the first position. it can. When the cartridge 9 is placed on the disc placement surface 3a and the flat portion 13d by the user, the centering means 8a to 8d positioned at the left and right ends in the planar direction of the disc placement surface 3a allow a certain amount of lateral direction. Position restrictions are made. At this time, the first and third centering means 8a and 8c are not in contact with the left end portion 9a of the cartridge 9 and are in a separated state. The second and fourth centering means 8b and 8d are not in contact with the right end portion 9c of the cartridge 9 and are separated from each other.

  Next, when a recording / reproducing start switch (not shown) is turned ON, the clamp base 10 moves from the standby position shown in FIG. 5 in the direction of arrow H (in the direction orthogonal to the moving direction of the optical pickup 2), It moves to a clamp position where the center of the turntable 1 and the center of the clamper 11 substantially coincide (not shown).

  Next, the centering means 8a to 8d rotate in the direction of the arrow A ', but the centering means 8a to 8d abut on the left end portion 9a and the right end portion 9c of the cartridge 9 only by slightly rotating, and the centering means In 8a to 8d, the rotation operation is stopped by the rotation stop means. Here, as the means for stopping the sliding operation when the first to fourth centering means 8a to 8d abut on the cartridge 9, for example, the centering means is constituted by a slip structure and is brought into contact with the cartridge 9. There is means for stopping the sliding operation by slipping. The cartridge 9 is placed in the pocket portion 13 so that the cartridge 9 can be positioned in the vertical direction.

  Thereafter, the shutter 9b provided on the cartridge 9 is opened by a shutter opening / closing mechanism (not shown).

  Next, as shown in FIG. 6, the traverse base 5 rotates about the support shaft 5a in the direction of the arrow J, the turntable 1 moves through the opening 3b to the recording / reproducing position, and the disc 4 moves to the turntable. 1 is lifted on the disk mounting surface. Along with this, the clamper 11 is attracted to the disk mounting surface of the turntable 1 by the magnetic force, and the disk 4 is clamped by the turntable 1 and the clamper 11 to be in a recording / reproducing state. Then, the turntable 1 rotates to rotate the disk 4 so that information can be recorded on and reproduced from the disk 4.

  Next, a case where the cartridge 9 is taken out from the apparatus will be described.

  When a disk ejection switch (not shown) is turned on while the disk 4 in the cartridge 9 is at the recording / reproducing position, the rotation of the turntable 1 stops and the rotation of the disk 4 stops.

  Then, from the position where the first to fourth centering means 8a to 8d abut against and support the left end portion 9a and the right end portion 9c of the cartridge 9, the centering means 8a to 8d rotate in the direction of the arrow D ', The means 8a to 8d are separated from the cartridge 9 to release the support. Note that the amount of rotation of the centering means 8a to 8d at this time is slight.

  Next, the traverse base 5 rotates about the support shaft 5a in the direction opposite to the arrow J, and moves to a standby state as shown in FIG. Accordingly, the disc 4 held by the turntable 1 and the clamper 11 is detached from the disc placement surface of the turntable 1. Next, the clamp base 10 moves from the clamp position in the direction opposite to the arrow H, moves to the standby position shown in FIG. 5, and the cartridge 9 can be taken out.

  As described above, according to the first embodiment, the groove portion 13c is provided inside the pocket portion 13 on which the disk 4 is placed, and the first taper portion 13a is provided at least on the disk placement surface 3a side of the groove portion 13c. As a result, when the disk 4 is placed in the pocket portion 13, a gap can be formed between the disk 4 and the disk placement surface 3a in the vicinity of the lower end of the disk 4, so that the centering means 8c and 8d can cause the disk 4 to move. It is possible to reliably support the outer periphery of the.

  Further, by providing the flat portions 13d on both sides of the groove portion 13c of the pocket portion 13, the position of the cartridge 9 can be regulated and stably placed in the pocket portion 13.

  Further, an opening 3b through which the turntable 1 can be inserted and moved is provided in a part of the front cover 3, and centering means 8a to 8d are provided on the left and right sides of the front cover 3, so that the disk 4 is inserted into the disk mounting surface 3a and If placed on the pocket 13, the disk 4 can be automatically transferred so that the center of the disk 4 is aligned with the center of the turntable 1, and it is not necessary to position and mount the disk 4 finely. Can be easily done. Further, since the disk is supported from four directions, the disk mounting range in which centering can be performed is wide, and the degree of freedom of disk mounting can be increased.

  In addition, although the rotation stop means of this Embodiment was based on mechanical means, such as a slip mechanism and a stopper, it may be based on electrical control.

  In this embodiment, as the centering means, a means in which a pair of left and right and upper and lower members rotate in a pair is used, but another centering means may be used. For example, centering means for supporting the disk 4 at three points may be used.

  In this embodiment, as means for clamping the disk 4 to the turntable 1, means for moving the clamp base 10 parallel to the disk placement surface using the clamp base 10 is used. Other means such as translation or rotation from the direction may be used. Further, a means for clamping only by the turntable 1 without using the clamp base 10 may be used.

  It should be noted that the present invention can be applied to a disk device dedicated for recording / reproducing only a disk, a disk device capable of recording / reproducing only a cartridge, or a disk device capable of recording / reproducing both a disk and a cartridge. is there.

  The present invention is not limited to the embodiment described above.

  In the disk device according to the present invention, a pocket portion is provided on a front cover that is fixedly disposed between a standby position and a recording / reproducing position on a disk mounting surface of a turntable, and is provided on a bottom surface portion of the pocket portion. An inclined surface is formed from the groove portion toward the disc mounting surface of the front cover, and the disc is placed in the pocket portion, so that the centering means abuts on the outer periphery of the disc and transfers it, and the disc center is centered to the turntable center. Thus, the present invention can also be applied to applications that require the disk to be mounted in the disk device in a manner that is easy and highly flexible, depending on the method of mounting the disk in the device.

The top view of the disc mounting state of the disc apparatus in Embodiment 1 of this invention Side surface sectional drawing of the disc installation state of the disc apparatus in Embodiment 1 of this invention The top view of the disc centering completion state of the disc apparatus in Embodiment 1 of this invention Side surface sectional drawing of the disc centering completion state of the disc apparatus in Embodiment 1 of this invention The top view when the case which accommodated the disk in the disk apparatus in Embodiment 1 of this invention was mounted | worn Side surface sectional drawing when the case which accommodated the disk in the disk apparatus in Embodiment 1 of this invention was mounted | worn

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Turntable 2 Optical pick-up 3 Front cover 3a Disc mounting surface 3b Opening 4 Disc 5 Traverse base 5a Support shaft 6 Guide shaft 7 Drive motor 8 Centering means 8a First centering means 8b Second centering means 8c Third Centering means 8d Fourth centering means 8e Centering means rotation shaft 8f Centering means gear 9 Cartridge 9b Shutter 10 Clamp base 11 Clamper 13 Pocket part 13a First taper part 13b Second taper part 13c Groove part 13d Flat part 13e front wall

Claims (2)

A disc stored in a case, or a large-diameter disc or a small-diameter disc can be recorded / reproduced,
An optical pickup for recording / reproducing the disk and a turntable on which the disk is mounted and rotated at a position where the optical pickup can be recorded / reproduced, and which moves between a recording / reproduction position and a standby position When,
A front cover having a disk mounting surface on which the disk is mounted, and abutting on the disk, fixedly disposed between the standby position and the recording / reproducing position of the disk mounting surface of the turntable; And a centering means for transferring the center to the center of the turntable,
In order to move the traverse from the standby position to the recording / reproducing position when the disk is in a recording / reproducing state, an opening is formed in a part of the disk mounting surface of the front cover,
A part of the front cover includes a pocket portion that can hold the disk,
In the first plane including the central axis of the optical pickup and the central axis of the turntable and the bottom surface portion of the pocket portion provided substantially perpendicular to the disk mounting surface of the front cover, the first plane A groove portion having a flat portion at a position perpendicular to the disk mounting surface of the front cover is provided at a position separated from the disk mounting surface of the front cover in the vertical direction.
An inclined surface is formed from the disk mounting surface of the front cover to the groove. 2. The disk device according to claim 1, wherein, in the bottom surface portion of the pocket portion, a flat surface portion is provided on the bottom surface portion on the outer side of the groove portion for placing the case storing the disk.

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