JP2006092689A - Disk apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk apparatus in which loading a disk to the apparatus is made by a method being easy and having the high degree of freedom without damaging the disk. <P>SOLUTION: A disk placing plane is provided at a front cover arranged and fixed between a standby position of the disk placing plane of a turntable and a recording and reproducing position, ribs which are low in the vicinity of the turntable and becomes high gradually as being separated from the turntable are arranged at the disk placing plane, a disk center is centered to a turntable center by a centering means by placing the disk on the disk placing plane, and the disk is loaded to the apparatus. <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-mentioned conventional problems, and an object thereof 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, a disk apparatus according to 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 mounted 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 a standby position, and a standby of the disk placement surface of the turntable A front cover having a disk mounting surface on which a disk is mounted and a centering means for contacting the disk and transferring the center of the disk to the center of the turntable. When the disc is in the recording / playback state, the front cover is removed so that the traverse can be moved from the standby position to the recording / playback position. There is an opening in a part of the mounting surface, ribs are arranged on the disk mounting surface of the front cover, and the height of the ribs in the vertical direction is low near the turntable, but from the vicinity of the turntable to the radial direction It is comprised so that it may become high gradually as it goes outside.

  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. An opening is provided, and ribs are arranged on the disk mounting surface of the front cover. The height of the ribs in the vertical direction is low near the turntable and gradually increases from the turntable to the outside in the radial direction. If the disc is placed on the disc placement surface of the front cover, the center of the disc is automatically centered on the turntable without the need for fine positioning, and the disc is loaded. Therefore, it has an effect that the disk can be easily mounted.

  In addition, it is possible to prevent scratches on the surface of the disk facing the disk mounting surface, protect the disk, and further, a gap is created between the disk and the disk mounting surface by a rib. It can be easily taken out, and has an effect that it can be easily attached to and detached from the disk mounting surface with a high degree of freedom.

  The invention according to claim 2 of the present invention is characterized in that the rib disposed on the disk mounting surface of the front cover is disposed in parallel to the moving direction of the optical pickup. Since the opening provided on the surface is provided parallel to the moving direction of the optical pickup, the opening can be configured without interruption of the rib in the middle, and the effect of preventing damage to the disk is enhanced.

  The invention described in claim 3 of the present invention is characterized in that the rib provided on the disk mounting surface of the front cover is formed at the edge of the opening provided on the disk mounting surface. The ribs can be made inconspicuous in appearance, and the appearance from the direction facing the disc mounting surface, that is, the appearance from the front of the apparatus can be improved.

  In the invention according to claim 4 of the present invention, the rib disposed on the disk mounting surface of the front cover has a height of the rib when the disk stored in the case is mounted on the disk mounting surface. It is characterized by moving in a lowering direction, and has the effect that the height of the rib when the disc is placed can be set high, and the effect of preventing damage to the disc is enhanced.

  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 is a plan view of the disk device in the centered state of the disk, FIG. 4 is a side sectional view of the disk device in the centered state of the disk, and is a cross-sectional view taken along the line YY in FIG. 1 to 4 are examples using a large-diameter disk (for example, a 12-centimeter 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. 3c is a rib provided at a position away from the turntable 1 and the optical pickup 2 on the disk mounting surface 3a of the front cover 3, and the protrusion amount of the rib 3c in a direction substantially perpendicular to the disk mounting surface 3a is as follows. When the apparatus is installed vertically (installation method in which the disk mounting surface 3a is substantially perpendicular to the installation surface of the apparatus), the dimensions are set so that the disk and cartridge can be mounted. Yes. The rib 3c 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 is placed.

  3d is a rib provided in the vicinity of the turntable 1 on the disk mounting surface 3a. When the disk 4 (large diameter or small diameter) is mounted on the disk mounting surface 3a, the outer peripheral edge portion of the disk 4 by the rib 3d. In order to prevent the surface (a recording surface in the case of CD or DVD) of the disk 4 facing the disk mounting surface 3a from coming into contact with the disk mounting surface 3a and scratching or dirt. Is. In the present embodiment, the rib 3d is provided in parallel with the moving direction of the optical pickup 2 (the direction of arrow A or the opposite direction) as shown in FIG. In the present embodiment, the ribs 3d are provided at two places on the left and right sides of the opening 3b so as to follow the left and right edges of the opening 3b. Further, the length in the longitudinal direction of the rib 3d is provided so as to be longer than at least the outer diameter of the large-diameter disk with the turntable as the center. Further, the lower end of the rib 3d extends to the vicinity of the rib 3c. Further, as shown in FIG. 2, the height of the rib 3d with respect to the disk mounting surface 3a is formed such that the vicinity of the turntable 1 is the lowest, and the height is increased in the radial direction of the disk. The upper end and the vicinity of the lower end are formed to be the highest. The shape of the rib 3d when viewed from the side from the upper end in the longitudinal direction to the lower end through the vicinity of the turntable is a continuous substantially arc shape as shown in FIG. 2 in the present embodiment. . The shape is not limited to the arc shape, and may be any shape as long as it is lowest at least near the center. For example, the shape may be substantially V-shaped. In this embodiment, the rib 3d is disposed along the left and right edges of the opening 3b. However, at least the centering means 8 is not obstructed and the rib 3d and the centering means on the disk mounting surface 3a are not disturbed. As long as the condition that the small-diameter disk does not enter between 8 and 8 is satisfied, it may be provided at another position. The width of the rib 3d may be a dimension that can reduce the contact area with the disk 4 as much as possible, for example, a shape that sharpens the shape of the top of the rib 3d.

  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 centering means for transporting the disk 4 in the direction of arrow A so that the center of the disk 4 placed on the rib 3c is aligned with the center of the turntable 1. In this embodiment, the centering means 8a to 8d is shown. As described above, the center is constituted by four centering means symmetrically in the vertical and horizontal directions around the turntable 1, and passes through the first plane including the center axis of the turntable 1 and the center axis of the optical pickup 2 and the center of the turntable 1. The disk 4 is configured to abut on the disk 4 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. So that it can be moved between the second positions (FIGS. 3, 5, and 6) in which A is completed, it can be rotated around the support shaft 8e in the direction of arrow A ′ or D ′, respectively. . 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 or the rib 3c of the front cover 3 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 on the rib 3c, the centering means 8a to 8d are configured to stop the rotation operation by the rotation stopping means when the centering means 8a to 8d rotate and come into contact with the cartridge 9. . Although not shown, for example, when a switch type cartridge detection mechanism is provided in the apparatus and the cartridge 9 is placed on the rib 3c, the cartridge is detected and the first to fourth centering means 8a to 8d are rotated. It is good also as a structure which controls and controls so that a moving 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.

  In a state where the disk 4 is mounted on the disk mounting surface 3 a and the rib 3 c by the user, the center of the disk 4 is at a position displaced downward from the center of the turntable 1. At this time, as shown in FIG. 2, the disk 4 is mounted on the rib 3d provided on the disk mounting surface 3a, the outer peripheral edge of the disk 4 is supported by the rib 3d, and the recording surface of the disk 4 is the disk surface. It will be in the state spaced apart from the mounting surface 3a. The position restriction of the disk 4 in the left-right direction is restricted to some extent by 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. 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 on the rib 3c, the center of the disk 4 is displaced downward from the center of the turntable 1, so that the disk 4 is placed on the rib 3c. In this case, 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 in the direction of arrow A. It becomes the operation to lift to. 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. 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 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 peripheral part of the disk 4. . 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 ', respectively, and the disk 4 slides on the disk contact surfaces of the centering means 8c and 8d and is placed on the rib 3c. 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. At this time, as shown in FIG. 2, the disk 4 is mounted on the rib 3d provided on the disk mounting surface 3a, the outer peripheral edge of the disk 4 is supported by the rib 3d, and the recording surface of the disk 4 is the disk surface. It will be in the state spaced apart from the mounting surface 3a. Thereby, the disk 4 can be taken out. Since the rib 3d creates a gap between the disk 4 and the disk mounting surface 3a, the disk 4 is easily grasped by hand when the disk 4 is taken out and is easily 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. 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 is shorter in 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 rib 3c 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. Detailed description of the operation is omitted. Further, even when a small-diameter disk is placed on the rib 3d, the outer peripheral edge of the disk and the rib 3d are in contact with each other like the large-diameter disk, and the recording surface of the disk is separated from the disk placement surface 3a. .

  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 3a and the rib 3c in a state where the first to fourth centering means 8a to 8d are in the first position. In a state where the cartridge 9 is placed on the disc placement surface 3a and the rib 3c by the user, the cartridge 9 is placed on the rib 3d provided on the disc placement surface 3a as shown in FIG. 9 is supported by the rib 3d, and the surface of the cartridge 9 facing the disk mounting surface 3a is in a state of being separated from the disk mounting surface 3a. The centering means 8a to 8d positioned at the left and right ends in the planar direction of the disk mounting surface 3a restricts the position in the left and right directions to some extent. 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 cartridge 9 is pressed onto the disk mounting surface by pressing means (not shown). The pressing means is constituted by an elastic member such as a leaf spring.

  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 on the rib 3c, 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, a pressing means (not shown) releases the pressing of the cartridge 9 and retreats from the projection surface of the disk mounting surface 3a. Then, 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. At this time, as shown in FIG. 6, the cartridge 9 is mounted on the rib 3d provided on the disk mounting surface 3a, and the vicinity of the upper end and the lower end of the surface of the cartridge 9 facing the disk mounting surface 3a is the rib 3d. The surface of the cartridge 9 facing the disk mounting surface 3a is in a state of being separated from the disk mounting surface 3a.

  As described above, according to the first embodiment, the opening 3b through which the turntable 1 can be inserted and moved is provided in a part of the front cover 3, and the centering means 8a to 8d are provided on the left and right of the front cover 3. Thus, if the disk 4 is placed on the disk placement surface 3a and the rib 3c, the center of the disk 4 can be automatically transferred so as to match the center of the turntable 1, and the disk 4 can be finely divided. There is no need to position and mount, and mounting is easy. 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, according to the present embodiment, a part of the pair of centering members has the gears 8e, and the gears 8e are arranged so as to mesh with each other, thereby matching the rotation timings of the pair of centering members. The centering accuracy can be improved, and if the rotational driving force is applied to only one of the pair of centering members, it can be driven both up and down, and the number of parts required for driving can be reduced.

  In addition, according to the present embodiment, the first plane is constituted by a plane including the optical axis of the optical pickup 2 and the central axis of the turntable 1. Since the centering means 8a to 8d are arranged symmetrically with respect to the path, the centering means 8a to 8d are less likely to interfere with the movement path of the optical pickup 2, and the degree of freedom of the configuration of the centering means 8a to 8d is increased. The rotation range of 8a to 8d can be increased, and therefore, the disk mounting range that can be centered is widened, and the degree of freedom of disk mounting can be increased. Further, when the cartridge 9 containing the disk 4 is mounted, the outer shape of the cartridge 9 is quadrangular and the left and right side surfaces are parallel to the movement path of the optical pickup 2, so that when the centering means 8a to 8d abut on the cartridge 9, It can abut against the left and right side surfaces evenly, and has an effect that the cartridge 9 can be stably placed.

  Further, by providing the rib 3d on the disk mounting surface 3a of the front cover 3, it is possible to prevent the surface of the disk 4 facing the disk mounting surface 3a from being scratched, to protect the disk 4, and Since the gap is formed by the rib 3d between the disk 4 and the disk mounting surface 3a, the disk can be easily taken out from the apparatus, and the disk mounting surface 3a can be easily attached to and detached from the disk mounting surface 3a. .

  Further, since the rib 3d is arranged in parallel with the moving direction of the optical pickup 2, the opening 3b provided in the disk mounting surface 3a is provided in parallel with the moving direction of the optical pickup 2, and therefore the opening 3b. Therefore, the rib 3d can be configured without being interrupted, and the effect of preventing the disc 4 from being damaged can be enhanced.

  The rib 3d is formed at the edge of the opening 3b provided on the disc mounting surface 3a. The rib 3d can be made inconspicuous in appearance, and the disc mounting surface 3a The appearance from the opposite direction, that is, the appearance from the front of the apparatus can be improved.

  In this embodiment, when the cartridge 9 is mounted, the cartridge 9 is placed on the fixed rib 3d. However, when the cartridge 9 is placed, the rib 3d is lowered so that the height of the rib 3d is lowered. It is good also as a structure which 3d moves. In this case, the height of the rib 3d when the disc 4 is placed can be set high, the disc 4 can be prevented from being damaged, and the disc 4 can be taken out more easily. Although the movement of the rib 3d is not shown, for example, the rib 3d is pushed inside the disk mounting surface 3a by its own weight, and the original rib height is restored by an elastic member such as a spring. do it.

  In this embodiment, the opening 3b provided in the front cover 3 is formed in a rectangular shape. However, the opening 3b does not have to be a rectangular shape, and any shape can be used as long as the turntable 1 and the optical pickup 2 can be inserted. There may be.

  In the present embodiment, the centering means 8 is a means in which a pair of upper, lower, left and right members rotate in a pair, 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.

  The disk apparatus according to the present invention includes a disk mounting surface on a front cover that is fixedly disposed between a standby position and a recording / reproducing position of a disk mounting surface of a turntable, and the turntable is provided on the disk mounting surface. In the center of the disc, a rib which is low and gradually increases as the distance from the center of the turntable is disposed, and by placing the disc on the disc placement surface, the center of the disc is centered to the center of the turntable by the centering means, and the disc is Depending on the method of mounting on the device, the disk can be mounted on the disk device in a manner that prevents the disk from being scratched and requires an easy and highly flexible method.

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 3c Rib 3d Rib 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 9 Cartridge 9b Shutter 10 Clamp base 11 Clamper

Claims (4)

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,
Ribs are disposed on the disk mounting surface of the front cover, and the height of the ribs in the vertical direction is low near the turntable and gradually increases from the turntable near the radial direction. A disk unit. 2. The disk device according to claim 1, wherein the rib disposed on the disk mounting surface of the front cover is disposed in parallel with the moving direction of the optical pickup. 2. The disk apparatus according to claim 1, wherein a rib disposed on the disk mounting surface of the front cover is formed at an edge of an opening provided on the disk mounting surface. The rib disposed on the disk mounting surface of the front cover moves in a direction in which the height of the rib decreases when the disk stored in the case is mounted on the disk mounting surface. The disk device according to claim 1.

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