JPH0982006A - Recording medium storing device and disk device with recording medium storing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an optical disk from being scratched due to contact by supporting the outer-periphery edge of the outer-periphery surface of a disk- shaped recording medium from both sides to support the recording medium from both sides and to support the recording medium nearly vertically. SOLUTION: When an optical disk D is housed at a disk storage part 15 of a rotary table 8, the optical disk D is held in a nearly vertically erected state at each disk storage part 15. Namely, by inserting the optical disk D into the disk storage part 15 and holding the optical disk D with an inner supporting part 20 of an inner support 16 and an outer support part 21 of an outer support body 17, both outer-periphery edges on the outer-periphery surface of the optical disk D are pressed against both inclined surfaces of V-shaped grooves 23 and 24 due to dead weight since the V-shaped groove 23 is formed on the bottom surface of the inner supporting part 20 and the V-shaped groove 24 is formed on the bottom surface of the outer supporting part 21. Then, the weight of the optical disk D is supported at a low part and at the same time the fall of the optical disk D can be prevented at a side part due to the function of both V-shaped grooves 23 and 24.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to reproduction of information or / and
The present invention also relates to a recording medium storage device provided with a recording medium storage portion capable of storing a disc-shaped recording medium such as a recordable optical disc or a magneto-optical disc in a vertical direction, and a disk device including the recording medium storage device. .

[0002]

2. Description of the Related Art Conventionally, a disc for accommodating a large number of disc-shaped recording media, for example, 100 optical discs exclusively for reproduction, and reproducing an information signal such as a musical tone signal recorded by selecting a desired optical disc. A device is provided.
This disc device includes a disc storage device that stores 100 optical discs vertically, and a disc transport mechanism that selectively ejects and transports one of the optical discs stored in the disc storage device. It is composed of a disc reproducing mechanism for reproducing the information signal recorded on the optical disc conveyed by the disc conveying mechanism.

The disc storage device of this disc device is
It is provided with a rotary table provided with 100 disk storage units for individually storing 100 optical disks, a table drive mechanism for rotating the rotary table, and the like. The 100 disk storages provided on the rotary table are radially arranged around the axis of the center of rotation of the rotary table, and one optical disk is stored vertically in each disk storage. Therefore, the 100 optical discs stored in the disc storage portion are arranged in a donut shape as a whole.

A disc transport mechanism for selectively taking out and transporting one of the optical discs housed in the disc housing portion has a first arm for supporting the optical disc from below and pushing it upward, and this first arm. Second movement of the optical disc to the disc reproduction mechanism side while holding it in cooperation with the arm
And an optical disc guide for guiding the optical discs conveyed by the first and second arms to the loading position of the disc reproducing mechanism.

The optical disk carried by the disk carrying mechanism is chucked by the disk table and the chucking plate of the disk reproducing mechanism. This disc reproducing mechanism is a disc rotation driving mechanism that rotationally drives a chucked optical disc, an optical pickup that reproduces an information signal such as a musical tone signal recorded on the optical disc that is rotationally driven, and the optical pickup that drives the optical disc. It is composed of a pickup moving mechanism that moves in the radial direction.

The selection of an optical disk to be reproduced by such a disk player is performed by the user's operation of selecting an operation switch. That is, when a predetermined signal is input by the operation of the operation switch, the control device outputs a predetermined control signal based on the input signal, and first, the rotary table is rotationally driven to move the selected disk storage unit to the disk storage unit. It is moved on the transport path of the transport mechanism. Next, by operating the disc transport mechanism, the optical disc is taken out from the rotary table and transported to the disc playback mechanism, and the optical disc is loaded. As a result, the reproduction of the information signal such as the tone signal recorded on the optical disc is executed by the optical pickup.

When the reproducing operation is completed, the chucking of the optical disk by the disk reproducing mechanism is released, the optical disk is returned to the rotary table side by the disk conveying mechanism, and is housed in the original disk housing section. As a result, the predetermined reproduction operation by the above selection operation is completed and the next reproduction operation becomes possible.

[0008]

However, in the conventional recording medium storage device as described above, the intervals between the optical discs are narrowed as much as possible in order to make the device compact and save space, and the operation for taking out and storing each optical disc is performed. However, since the structure is such that the entire outer peripheral surface of the optical disc (that is, the plate thickness portion of the optical disc) is supported in each disc storage unit that stores the optical disc vertically, There is a problem that scratches may occur and a problem may easily occur when the optical disc is loaded.

That is, in the conventional recording medium storage device, as shown in FIG.
As shown in FIG. 4, a bottom surface 2a of each disk accommodating portion 2 of the rotary table 1 forms a flat surface, and the bottom surface 2a planarly supports the entire outer peripheral surface (plate thickness portion) of the optical disk D. Was becoming. The optical disc D supported in this manner generally has a plate thickness t of 1.2 mm.
However, since it is extremely difficult to finish accurately according to the dimensions, the allowable thickness for the plate thickness t is +0.
Tolerances in the range of 3 mm to -0.1 mm are accepted.
Therefore, the maximum thickness t of the optical disc D is 1.5 mm.
And the minimum dimension is 1.1 mm.

As a result, when the maximum plate thickness of the optical disc D obtained from the above dimensional tolerance is 1.5 mm and a margin of 0.1 mm is taken into consideration, the width S of the bottom surface 2a of the disc accommodating portion 2 is added.
Is 1.6 mm. Then, since the minimum dimension of the plate thickness t of the optical disc D is 1.1 mm, a large gap of 0.5 mm is generated between the optical disc D and the disc housing portion 2. If such a large gap is formed, the optical disc D is not vertically supported by the disc housing portion 2 but is supported in an inclined manner.
May come into contact with the opening side corner 2b of the disc housing portion 2 or may come into contact with the adjacent optical disc D to be rubbed against each other, thereby causing a trouble such as scratching the optical disc D.

The present invention has been made in view of such conventional problems, and supports the recording medium substantially vertically by supporting the outer peripheral edge of the outer peripheral surface of the disk-shaped recording medium from both sides. A recording medium storage device capable of preventing adhesion of scratches due to contact of an optical disc and preventing a problem from occurring when the optical disc is loaded,
It is also an object of the present invention to provide a disk device having the device.

[0012]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems and the like and to achieve the above-mentioned object, the present invention provides a disk-shaped recording in a receiving portion of a recording-medium accommodating portion which comes into contact with a disk-shaped recording medium. It is characterized in that a substantially V-shaped V-shaped groove for supporting both outer peripheral edges of the outer peripheral surface of the medium is provided.

Further, a recording medium storage device having a rotary table provided with a plurality of recording medium storage portions capable of storing the disc-shaped recording medium vertically, and recording and / or reproducing information on the disc-shaped recording medium. One of the recording and / or reproducing mechanism and a plurality of recording media stored in the rotary table is selectively taken out and conveyed to the recording and / or reproducing mechanism, or mounted on the recording and / or reproducing mechanism. A recording medium transporting mechanism that takes out the recording medium and transports it to a recording medium storage device, and the outer peripheral edge of the outer peripheral surface of the disk-shaped recording medium is attached to the receiving portion in contact with the disk-shaped recording medium in the recording medium storage portion. It is characterized in that a V-shaped groove having a substantially V-shape for supporting is provided.

According to the present invention, which has the above-described structure, the V-shaped groove provided in the receiving portion of the recording medium accommodating portion supports both outer peripheral edges of the outer peripheral surface of the recording medium so as to support the plate thickness. Even disc-shaped recording media having different thicknesses and different thicknesses can be supported substantially vertically without rattling.

Further, since the disk-shaped recording medium is supported substantially vertically by the V-shaped groove provided in the receiving portion of the recording medium storage portion of the recording medium storage device, the recording medium is securely held by the recording medium transport mechanism. Recording medium and / or reproducing mechanism, and the recording and / or reproducing mechanism can record and / or reproduce information on the recording medium, and the recording medium mounted on the recording and / or reproducing mechanism. Can be reliably held by the recording medium transport mechanism and can be reliably stored in the recording medium storage portion of the recording medium storage device.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 12 show an embodiment of the present invention, which is applied to a CD player showing a specific example of a disk device having a recording medium housing device capable of housing a plurality of optical disks. 1 is an external perspective view of the disk device of the present invention with the front door open, FIG. 2 is an external perspective view of the disk device of the present invention with the front door closed, and FIG. 3 is an internal structure of the disk device of the present invention. FIG. 4 is an enlarged view of an essential part of FIG. 3, and is a plan view of the disc transport mechanism. FIG. 5 is a perspective view showing the disc transport mechanism according to the present invention. FIG. 6 is a disc device of the present invention. 7 is a longitudinal sectional view of FIG.
9 is an explanatory view showing an operating state of the disc transport mechanism of the disc device of the present invention, FIG. 10 is a longitudinal sectional view of the rotary table according to the recording medium storage device of the present invention, and FIG.
1 is an enlarged sectional view showing an essential part of the rotary table shown in FIG. 10, FIG. 12 is an enlarged plan view showing an essential part of the internal structure of the disk device shown in FIG. 3, and FIG. 13 is a rotary shown in FIG. It is sectional drawing of the AA line of a table, a BB line, and a CC line.

As shown in FIGS. 1 and 2, the disk device of the present invention includes a plurality of optical disks D, each of which is a specific example of a disk-shaped recording medium, in a housing 3 which constitutes a device body having a substantially rectangular shape. A disc storage device 4 showing a specific example of a recording medium storage device capable of storing (100 discs in this embodiment), and one selected from a plurality of optical discs D stored in the disc storage device 4. A disk carrying mechanism 5 showing a specific example of a recording medium carrying mechanism for taking out and carrying a single optical disk D, and recording and / or reproducing for reproducing information recorded on the optical disk D carried by the disk carrying mechanism 5.
Alternatively, a disc reproducing mechanism 6 or the like showing a specific example of the reproducing mechanism is built in.

The housing 3 has a box-shaped box body 3a having an opening on the front side and a front panel 3b for closing the front opening of the box body 3a. Is formed with an opening 3c. The opening 3c of the front panel 3b can be opened and closed by a front door 3d that is also rotatably attached to the front panel 3b. A part of the front side of the rotary table 8 rotatably attached to the box body 3a faces the interior of the opening 3c of the front panel 3b which is opened and closed by the front door 3d, and the optical disk D is accommodated through the opening 3c. And the take-out operation is possible.

Further, the front panel 3b has a power switch 1 for turning on / off the power supplied from an external power supply.
9a, an operation dial 19b that can rotate the rotary table 8 in any direction to the left or right by a manual rotation operation, and many other operation switches 19c (for example, a reproduction switch, a pause switch,
Stop switch, etc.) is provided. The input state by the operation dial 19b and the operation switch 19c, and the operation state such as performance based on the input state are displayed by the display section 3e (for example, a liquid crystal display) provided below the opening 3c.

As shown in FIG. 6 and the like, the disk storage device 4 disposed in the housing 3 includes a rotary table 8 rotatably supported on the box body 3a side via a support shaft 7, and a rotary table 8 The rotary table 8 is provided with a table drive mechanism 9 that drives the rotary table 8 to rotate about the support shaft 7. The support shaft 7 penetrates through the center of the rotary table 8 and projects vertically, and the support pin 11 of the upper bearing plate 10 fixed to the top plate of the box body 3a of the housing 3 is provided at the upper end of the upper projection. Is rotatably fitted, and a support pin 13 of a lower bearing plate 12 fixed to the lower surface plate of the box body 3a is rotatably fitted to the lower end of the lower protrusion of the rotary table. 8 is rotatable in parallel with the bottom surface of the housing 3.

Further, the support shaft 7 is a lower surface piece 10a of an upper bearing plate 10 formed by bending so as to be parallel to the bottom surface of the housing 3.
And the upper bearing piece 12a of the lower bearing plate 12 are pierced through, the upper face piece 12a supports the rotary table 8 from below, and the lower face piece 10a prevents the rotary table 8 from moving upward. The rotary table 8 is always configured to rotate horizontally at a predetermined height position. Reference numeral 14 in the figure denotes a bearing ring fitted and fixed to the center of the upper portion of the rotary table 8.

As shown in FIGS. 3 and 6 to 13, the rotary table 8 has a disk shape such that the inner surface of the upper surface is bulged into a cylindrical shape, and the upper surface is inclined outward in the radial direction. In the portion, a plurality of disk storage portions 15 (100 in this embodiment) are formed radially around the rotation center of the support shaft 7 as a specific example of the recording medium storage portion. More specifically, the rotary table 8 includes a disc-shaped inner support 16 and the inner support 16.
And a ring-shaped outer support 17 arranged concentrically with a predetermined gap in the radial direction with respect to the inner support 16
And a large number of partition walls 18 that connect the outer supports 17 to each other. The partition walls 18 are arranged at equal angular intervals in the circumferential direction.
There are provided 100 disk storage portions 15 each of which is a concave portion curved in an arc shape by providing zero.

As shown in FIGS. 10 to 13, the disc storage portion 15 of the rotary table 8 has an inner support 1
6, the inner receiving portion 20 provided on the upper surface of
The outer receiving portion 21 is provided on the upper surface of the outer wall 7, and the operation port 22 is formed between the adjacent partition walls 18 and includes an opening penetrating in the vertical direction. The inner receiving portion 20 and the outer receiving portion 21 are formed to have a V-shaped or U-shaped cross-section, and their bottom surfaces have a radius of curvature corresponding to the radius of curvature of the outer peripheral surface of the optical disc D. A V-shaped groove 2 that has a cross-sectional shape that is substantially V-shaped
3 and 24 are provided respectively.

That is, the V-shaped groove 23 of the inner receiving portion 20 is provided over the entire length of the bottom surface along the valley of the inner receiving portion 20, while the V-shaped groove 24 of the outer receiving portion 21 is V-shaped. Groove 2
It is provided at a corner portion of the upper surface on the inner peripheral side of the outer support 17 so as to face the outer support 3. The lower portion of the optical disc D is supported by the V-shaped groove 24 of the outer receiving portion 21 and the outer peripheral side of the V-shaped groove 23 of the inner receiving portion 20, and the optical disc D is supported by the inner peripheral side of the V-shaped groove 23 of the inner receiving portion 20. The sides are supported. This V-shaped groove 23,
The width W on the opening side of 24 is formed to be larger than the thickness t of the optical disc D (W> t). For example, in this embodiment, the maximum allowable thickness of the optical disc D is 1.5 m as described above.
Since it is m, the width W of the V-shaped grooves 23 and 24 on the opening side is
Set to a value of 1.6 mm or slightly larger.

Thus, when the optical disk D is stored in the disk storage portion 15 of the rotary table 8, both outer peripheral edges of the outer peripheral surface of the optical disk D come into contact with both slopes of the V-shaped grooves 23 and 24, respectively, and the optical disk D is formed by these slopes. D
Is supported. In addition, the outer peripheral edges of the outer peripheral surface of the optical disc D contact with lines over substantially the entire length of the V-shaped grooves 23 and 24,
The optical disc D is held so as to be sandwiched from both sides by the two parallel planes including the contact line. Therefore, due to the action of the V-shaped grooves 23 and 24, the optical disc D is securely held by the disc storage portion 15 and vertically supported in a state of standing upright so as to be substantially vertical.

The functions of the V-shaped grooves 23 and 24 can be obtained without change even when the plate thickness of the optical disk D changes, and both outer peripheral edges of the outer peripheral surface of the optical disk D are V-shaped grooves. Since there is no change in contact with both slopes 23 and 24, even optical disks D having different thicknesses can be supported substantially vertically without rattling.
Further, in the optical disc D, since only the non-signal recording areas on both outer peripheral edges of the outer peripheral surface where the information signal is not recorded are supported by the inner receiving portion 20 and the outer receiving portion 21 of the disc storage portion 15, It is possible to reliably prevent the signal recording area formed on the inner peripheral side where the recording is performed from coming into contact with the side wall forming the disc housing portion 15, and it is possible to effectively prevent the signal recording area from being damaged. .

Further, a ring-shaped first detection plate 25 and a second detection plate 26 are provided on the lower surface side of the rotary table 8 so as to be concentric with each other about the support shaft 7. The first detection plate 25 has a diameter larger than that of the second detection plate 26, and the lower end surface thereof has slits formed at a constant pitch in the circumferential direction. The number of these slits is the disc storage unit 1 provided on the rotary table 8.
It is formed in the same pitch corresponding to the number of 5, therefore,
In this embodiment, 100 slits are provided.

On the other hand, the second detection plate 26 is located inside the first detection plate 25, and ten slits are provided on the lower end surface thereof at different pitches in the circumferential direction. The ten slits of the second detection plate 26 having different pitches and the 100 slits of the first detection plate 25 having the same pitch are configured to identify the respective positions of the 100 disc storage portions 15. . And
Three optical sensors 27, 28, 29 are provided in association with the first and second detection plates 25, 26.

Each of the three optical sensors 27 to 29 is composed of a combination of a light emitting element and a light receiving element, and is attached to a lower bearing plate 12 which pivotally supports the support shaft 7 of the rotary table 1 and a mounting plate 30. Is attached to. A first optical sensor 27 and a second optical sensor 28 are installed at a predetermined interval with respect to the first detection plate 25, and a third optical sensor 29 is provided with respect to the second detection plate 26. Is installed. The first to third optical sensors 27 to 29 are set to output, for example, high-level detection signals when detecting the slit portions of the corresponding detection plates 25 and 26, for example.

The detection signals of these three optical sensors 27 to 29 are supplied to a control device (not shown), and after predetermined arithmetic processing by the arithmetic processing device, 100 disc addresses corresponding to 100 disc accommodating portions 15 are supplied. It is configured to be able to identify. By thus specifying the positions of the 100 disc storage portions 15 of the rotary table 1, the optical disc D in the disc storage portion 15 having the desired disc number can be taken out, or the optical disc D can be stored in the disc storage portion 15 having the desired disc number. Operations such as storing D can be performed easily and accurately.

On the lower surface side of the rotary table 8 and outside the first detection plate 25, both detection plates 25, 2 are provided.
A cylindrical lock plate 31 is provided so as to be concentric with the lock plate 6. The lock plate 31 is provided with 100 lock recesses 32 that are open to the outside in the radial direction at equal intervals in correspondence with the disc storage portion 15 of 100, and the stopper pin 33 is engaged with the desired lock recess 32. By doing so, rotation of the rotary table 8 is prevented and the rotary table 8 is positioned at a desired position, and the disk storage unit 1 having a desired disk number is formed.
The rotary table 8 can be locked with 5.

Reference numeral 34 shown in FIGS. 3 and 6 is a support roller for supporting the outer support 17 which is the outer peripheral edge of the rotary table 8 from below, and is five support rollers 34 arranged substantially evenly in the circumferential direction. By supporting the outer peripheral edge of the rotary table 8, flexural deformation of the outer peripheral edge of the rotary table 8 when the optical disk D is stored is prevented. The support roller 34 is rotatably attached to a support plate 35 provided upright on the box body 3a with a support pin,
The function of the support roller 34 ensures the stability of rotation of the rotary table 8 under a heavy load such as when the optical disks D are stored in all the disk storage portions 15, for example.

Further, the outer peripheral surface of the rotary table 8, that is, the outer peripheral surface of the outer supporting body 17, is provided with a gear portion 36 over the entire circumference thereof. The gear portion 36 is for rotating the rotary table 8. The output gear 37a of the reduction gear train 37 of the table drive mechanism 9 is meshed with the rotary table 8 via the reduction gear train 37. It is connected to the drive motor 38 so that power can be transmitted. The reduction gear train 37 includes five gears including an output gear 37a and a driven pulley 37b, and a drive belt 39 is wound between the driven pulley 37b and a drive pulley 38a fixed to the rotation shaft of the table drive motor 38. It has been passed. The table drive motor 38 is fixed to the base plate 40, while the reduction gear train 37 is rotatably attached to the base plate 40 via a plurality of shafts.

As shown in FIG. 5 and the like, the base plate 40
A stand plate 41 is erected upright, and a disc transport mechanism 5 and a disc reproducing mechanism 6 are provided in association with the stand plate 41. The stand plate 41 includes a standing plate portion 41a provided so as to stand upright on the base plate 40, and a bearing portion 41b continuously provided on one side in the surface direction of the standing plate portion 41a. An opening window 42 is formed in the portion 41a.
An arm bracket 43 is arranged in the opening window 42 of the stand plate 41, and the upper portion of the arm bracket 43 is rotatably supported by the stand plate 41, so that the arm bracket 43 is rotatably held at the lower portion of the arm bracket 43. The chucking plate 44 is configured to be swingable in the lateral direction.

As shown in FIG. 6, the stand plate 41
The base end of an upper bearing plate 10 that fixes and supports the support shaft 7 is fixed to the upper end of the. A disc guide 45 is arranged on one surface side of the upper bearing plate 10.
One end of 5 is rotatably supported on the tip side of the upper bearing plate 10, and the other end extends horizontally and is arranged above the arm bracket 43 so as to be vertically swingable. An engaging pin 46 is laterally inserted and engaged with an end portion of the disc guide 45 on the swinging side, and
The engagement pin 46 is fixed to an upper end portion of a guide link 47 that is held by the stand plate 41 so as to be slidable in the vertical direction on one surface side of the stand plate 41. As shown in FIG. 3, the lower end portion of the guide link 47 is laterally bent and arranged behind the cylindrical cam 50, and the cam pin 48 fixed to the tip of the bent portion is fixed by the spring 49 to the cylindrical cam 50. It is biased by the disc guide driving cam portion 54.

The cylindrical cam 50 is provided with an optical system driving cam portion 51 provided on the upper surface of a cylindrical cam body, an arm driving cam portion 52 provided on the outer peripheral surface of the cam body, and a lower portion of the cam body. Gear portion 53, the disc guide driving cam portion 54 provided on the upper surface of the gear portion 53, and the gear portion 53.
Rotary table drive cam 55 provided on the lower surface of the
And a stopper pin driving cam portion 56 provided on the lower surface of the cam body. The cylindrical cam 50 is rotatably fitted to a pivot 57 that is erected on the base plate 40, and the upper part of the center of rotation is the base plate 40.
It is rotatably supported by a cam bracket 58 fixed to the.

An output gear 61a of a reduction gear train 61 of a cam drive mechanism 60 is meshed with a gear portion 53 of the cylindrical cam 50, and the cylindrical cam 50 transmits power to a cam drive motor 62 via the reduction gear train 61. Connected as possible. The reduction gear train 61 is composed of seven gears including an output gear 61a and a driven pulley 61b, and a drive belt 63 is wound between the driven pulley 61b and a drive pulley 62a fixed to a rotation shaft of a cam drive motor 62. It has been passed. The cam drive motor 62 is fixed to the base plate 40, while the reduction gear train 61 is rotatably attached to the base plate 40 via a plurality of shafts.

Further, as shown in FIG. 5, a shaft sleeve 64 is fixed to the bearing portion 41b of the stand plate 41 with the center hole oriented in the lateral direction. The rotating shaft 65 is rotatably inserted. A first arm 66 is fixed to the tip of one of the protrusions of the rotating shaft 65 to be integrated in the rotating direction, and
A sleeve 67 is rotatably fitted inside the first arm 66, and the second arm 6 is attached to the sleeve 67.
8 is fixed and integrated in the rotating direction. And
Coil spring 69 fitted to the other protrusion of the rotary shaft 65
Thus, the first arm 66 and the second arm 68 are biased toward the shaft sleeve 64 side.

The first arm 66 has a working piece that extends to one side in the radial direction with the turning shaft 65 as the center of rotation, and an input piece that extends to the opposite side. The working piece of the rotary table 8 is the working piece. In order to avoid the outer supporting body 17, the outer supporting body 17 is formed in a U-shape, and the first conveying claw 70 is fixed to the tip portion thereof. The first transporting claw 70 is mounted on the disc reproducing mechanism 6 by lifting the optical disc D accommodated in the disc accommodating portion 15 of the rotary table 8 from below and moving it to the disc reproducing mechanism 6 side. This is for returning the optical disc D to the disc storage portion 15.
Therefore, the first transfer claw 70 is provided on the rotary table 8
The operation port 22 provided in each of the disc storage portions 15 has a shape corresponding to the planar shape of the operation port 22 so that the operation port 22 can pass in the vertical direction, and the optical disc D is held on the upper surface thereof so as not to be detached. A holding groove 71 is formed. Then, at the tip of the input piece of the first arm 66,
The slide pin 72 is fixed.

The second arm 68 extends to the input side of the first arm 66, and its tip is bent toward the side of the first arm 66. The second arm 68 has a second tip at its tip. The transport claw 73 is fixed. Second transport claw 7
Reference numeral 3 is for holding the optical disc D in cooperation with the first conveying claw 70 and for conveying the optical disc D between the rotary table 8 and the disc reproducing mechanism 6. Therefore, the second transport pawl 73 is formed with a holding groove 74 for holding the optical disc D so as not to be detached from the wheel, as with the first arm 66, and the holding groove 74 is held by the first transport pawl 70. Is attached to the second arm 68 so as to face the holding groove 71. A slide pin 75 is fixed in the middle of the second arm 68.

The slide pin 72 of the first arm 66.
A forked portion 76b provided at the tip of the horizontal portion 76a of the first L-shaped link 76 is slidably engaged with the. The first L-shaped link 76 is arranged on the side of the cylindrical cam 50 of the stand plate 41, and the two guide pins 77 fixed to the stand plate 41 are connected to the first L-shaped link 76.
The first L-shaped link 76 is slidably supported in the vertical direction by slidably engaging the two elongated holes provided in the vertical portion 76c. Further, the fork portion 78b provided at the tip of the horizontal portion 78a of the second L-shaped link 78 is slidably engaged with the slide pin 75 of the second arm 68. The second L-shaped link 78 is arranged so as to be overlapped with the first L-shaped link 76 with a predetermined gap therebetween, and at the same time, the two guide pins 7 are provided.
The second L-shaped link 78 is also slidably supported in the vertical direction by slidably engaging 7 with the two elongated holes provided in the vertical portion 78c of the second L-shaped link 78. .

An upper cam pin 79 protruding toward the cylindrical cam 50 is fixed to the base portion of the horizontal portion 76a of the first L-shaped link 76, and a cylindrical portion is provided at the base portion of the horizontal portion 78a of the second L-shaped link 78. A lower cam pin 80 protruding toward the cam 50 is fixed. The upper and lower cam pins 79, 80 are used for the cylindrical cam 50.
It is installed so as to face each other in the vertical direction with the arm driving cam portion 52 interposed therebetween. A spring 81 is stretched between the first and second L-shaped links 76 and 78, and the spring force of the spring 81 causes the upper cam pin 7 to move.
9 is biased to the upper surface of the arm driving cam portion 52, and the lower cam pin 80 is biased to the lower surface of the arm driving cam portion 52. Due to the shapes of the upper and lower cam surfaces of the arm driving cam portion 52, the first arm 66 and the second arm 68 are given different movements as will be described later, so that the optical disc D can be transported.

The stopper pin driving cam portion 56 of the cylindrical cam 50 is formed of a substantially C-shaped cam groove, and the stopper pin driving cam portion 56 has a cam pin 83 fixed to the base end of the slide lever 82. Are slidably engaged. The stopper pin driving cam portion 56 includes the cylindrical cam 50.
It is provided so as to be eccentric with respect to the pivot shaft 57 which is the center of rotation of the slide lever 82.
Is given a predetermined slide amount. Slide lever 82
Of the lever pin 82a extending toward the center of the rotary table 8 and erected on the base plate 40.
While the base end side is guided by, the tip end is rotatably connected to the base end of the swing lever 84. A rotating shaft 85 is inserted in the middle of the swing lever 84, and the stopper pin 33 is fixed to the tip on the opposite side and protrudes upward. The rotating shaft 85 is erected on a support plate 86 slidably supported on the base plate 40.

Thus, by retracting the slide lever 82, the stopper pin 33 advances through the swing motion of the swing lever 84. As a result, the stopper pin 33
Enter into the lock concave portion 32 provided in the lock plate 31 of the rotary table 8, whereby the rotary table 8 is locked in the rotation direction. On the other hand, when the slide lever 82 is moved forward and the stopper pin 33 is retracted, the stopper pin 33 comes out of the lock recess 32, whereby the rotation direction lock of the rotary table 8 is released.

The support plate 86 is also provided with an elongated hole 86a extending in the direction in which the slide lever 82 extends and a plurality of elongated holes 86b extending in a direction intersecting with the elongated hole 86a. Protrusions bulging from the base plate 40 are engaged with a plurality of elongated holes 86b of the support plate 86, and by restricting the movement of the support plate 86 by these protrusions, the support plate 86 slides only in the intersecting direction. It is possible. An adjusting screw 87, which is rotatably supported by the base plate 40, is inserted into the elongated hole 86a of the supporting plate 86.
An eccentric shaft portion provided between the head portion and the shaft portion is rotatably fitted in the elongated hole 86a.

Thus, by rotating the adjusting screw 87 to eccentrically move the eccentric shaft portion, the support plate 86 can be slid in the direction in which the elongated hole 86b extends in accordance with the amount of eccentricity of the eccentric shaft portion. When the support screw 86 is slid by rotating the adjusting screw 87 in this manner, the position of the stopper pin 33 changes together with the rotation shaft 85, and accordingly, the swing position of the stopper pin 33 is changed. As a result, the lock position of the rotary table 8 that is locked at the forward position of the stopper pin 33 can be adjusted.
By making the lock position of the rotary table 8 changeable in this manner, the position of the operation port 22 of each disc storage portion 15 at a predetermined position of the rotary table 8 can be aligned with the first arm 66.

Further, the disc guide driving cam portion 54 of the cylindrical cam 50 is composed of an arcuate ridge extending in the circumferential direction, and an inclined surface is provided at one end in the circumferential direction of the disc guide driving cam portion 54. The cam pin 48 can be moved up and down. The cam pin 48 is aligned with the cam portion 5 along the inclined surface.
The guide link 47 is lifted by an amount corresponding to the lift of the cam pin 48 when the guide link 47 is lifted up. By the function of the disc guide driving cam portion 54, the optical disc D
At the time of chucking, the cam pin 48 is lifted, and one end of the disc guide 45 is lifted through the operation of the guide link 47 and the engaging pin 46 which are integral with the cam pin 48. Thereby, it is considered that the optical disc D does not come into contact with the disc guide 45 even when the disc guide 45 is separated from the optical disc D and shake occurs during rotation.

Further, the rotary table driving cam portion 55 of the cylindrical cam 50 is composed of an arcuate ridge extending in the circumferential direction, and detects the rotational direction of the cylindrical cam 50 as shown in FIG. 4 and FIG. The control switch 88 is turned on / off by the circumferential edges of the rotary table driving cam portion 55. The detection signal of the control switch 88 is input to a control device (not shown) serving as control means having a CPU (central processing unit), RAM / ROM (storage device) and the like. Then, the control device executes predetermined arithmetic processing based on the detection signal of the control switch 88 and outputs the control signal to the table drive motor 38 and the cam drive motor 62, so that loading of the optical disc, reproduction performance, etc. will be described later. Run.

Further, the optical system driving cam portion 51 of the cylindrical cam 50 comprises a cam groove formed in a substantially C shape, and this optical system driving cam portion 51 also serves as the stopper pin driving cam portion 5.
As in the case of No. 6, it is provided so as to be eccentric with respect to the pivot 57 which is the center of rotation of the cylindrical cam 50. As shown in FIG. 6, a cam pin 92 fixed to the lower end of a frame plate 91 on which an optical pickup 90 is mounted is slidably engaged with the optical system driving cam portion 51. A predetermined opening / closing operation is given to the frame plate 91 by the eccentric amount of 51.

That is, as shown in FIGS. 3 and 6, the frame plate 91 is the cylindrical cam 5 of the stand plate 41.
It is arranged so as to face the 0 side with a predetermined interval. The frame plate 91 is formed by the support shaft 58a provided on the cam bracket 58 and the support shaft 93a provided on the arm bracket 93 fixed to the upper surface of the stand plate 41.
Both the upper and lower ends of the rear part are pivotally supported, so that the rotary table 8 side of the frame plate 91 is swingable in the left-right direction. Furthermore, the frame plate 9
The cam pin 92 is provided in the lower part of 1, and can be opened and closed on the side of the cylindrical cam 50 which is the lower side by the movement of the cam pin 92 by the optical system driving cam portion 51.

A plurality of mounting means 9 are mounted on the frame plate 91 which can be swung left and right and downward as described above.
The mounting plate 95 is elastically supported in the front-back, left-right and up-down directions through the mounting plate 9.
5 is configured to absorb the vibration applied thereto.
A spindle motor and a pickup drive motor 96 are fixed to the attachment plate 95, and a disc table 97 is attached to the rotary shaft of the spindle motor. The disk table 97 is provided with a truncated cone-shaped convex portion so that the optical disk D can be aligned and held, and the chucking plate 44 is arranged so as to be able to approach and separate from the disk table 97 so as to face the disk table 97. There is.

A feed screw shaft 99 is connected to a pickup drive motor 96 mounted on the mounting plate 95 via a reduction gear train 98, and the feed screw shaft 99 is a feed screw shaft fixed to one side of the optical pickup 90. Nut 100
Are screwed together. The feed screw shaft 99 is a mounting plate 95.
The guide rail 101 is rotatably supported by the mounting plate 95 so as to be parallel to the feed screw shaft 99.
It is provided in. A bearing member 102 fixed to the other side of the optical pickup 90 is slidably engaged with the guide rail 101, and the optical pickup 90 is movable between the guide rail 101 and the feed screw shaft 99. Is held.

Thus, the rotational force of the pickup drive motor 96 is transmitted to the reduction gear train 98 to drive the feed screw shaft 99 to rotate, whereby the optical pickup 90 is guided by the guide rail 101 in the radial direction of the disc table 97. Move to approach or leave. When the optical pickup 90 moves, the information recorded on the recording surface of the optical disc D is read, and the reproduction performance or the like is executed. Therefore, the optical pickup 90 contains a light source such as a laser diode, a predetermined optical device such as a beam splitter and a collimator lens, and a photodiode and the like.

Further, 103 shown in FIG. 6 is a front panel 3
It is a disk cover arranged above the rear side of the opening 3c of b, and is screwed to the upper bearing plate 10 by a mounting bracket 104. The disc cover 103 is formed in an arc shape so that the optical disc D stored in the disc storage portion 15 of the rotary table 8 can pass in the horizontal direction, and is provided with a ring-shaped pop-out prevention band 105. Cage and this pop-out prevention band 105
This prevents the optical disc D from jumping out of each disc storage portion 15.

Incidentally, the first and second arms 66, 68 described above.
And the first and second transfer claws 70, 73 and the first and second L
The shape links 76 and 78, the cylindrical cam 50 and the like constitute the disc transfer mechanism 5, and the optical pickup 90, the frame plate 91, the disc table 97, the arm bracket 43, the chucking plate 44 and the like constitute the disc reproduction mechanism 6. There is.

The disk device having such a structure is
For example, by using as follows, it is possible to select a desired one optical disk D from a plurality of optical disks D and execute the reproduction performance. First, an appropriate number of optical disks D are stored in the disk storage device 4 in the housing 3. In this embodiment, 100 disk storage units 15 are set in the rotary table 8 of the disk storage device 4, and one optical disk D can be stored in each disk storage unit 15. One optical disk D can be stored. The size of the optical disk D used is generally 12 inches,
It is also possible to use an 8-inch optical disk by using an adapter.

In this case, the work of storing the optical disc D in each disc storage portion 15 of the disc storage device 4 is first performed manually. First, as shown in FIG. 1, the front door 3d at the center of the front panel 3b is pulled toward the front to open the opening 3c to expose the front side of the rotary table 8. Next, the optical disc D held in the hand is inserted vertically into the opening 3c, and the optical disc D is stored in the disc storage portion 15 located on the front side of the rotary table 8. When a plurality of optical discs D are to be stored, the front operation dial 19b is turned in any direction to rotate the rotary table 8 to the right or the left, and the vacant disc storage portion 15 is searched for. To store.

At this time, unique addresses 1 to 100 are assigned to the 100 disk storage portions 15, and the position of the rotary table 8 is controlled by a control device for controlling the operation of the disk device. It is performed based on the above address. Therefore, in the subsequent reproduction performance and the like, the relationship between the address of each disk storage portion 15 of the disk storage device 4 and the optical disk D stored in the disk storage portion 15 corresponding to the address is clarified in advance. There is a need.

Therefore, in this type of disc device, a storage device that can freely write and erase information is usually provided, and when the optical disc D is stored, the information of the stored optical disc D is input for each address. It is possible. The information on this optical disc D is recorded on the front panel 3b.
The information about the optical disc D stored in the disc storage unit 15 located in front of the disc transfer mechanism 5 on which the loading is performed can be displayed by the display unit 3e disposed on the front surface of the disc. It is displayed on the display unit 3e.

When the optical disk D is stored in the disk storage portion 15 of the rotary table 8 in this way, in the case of this embodiment, the optical disk D is held in a substantially vertical state in each disk storage portion 15. . That is, the optical disc D is inserted into the disc storage portion 15, and the inner receiving portion 20 of the inner supporting body 16 and the outer receiving portion 2 of the outer supporting body 17 are inserted.
When the optical disc D is held by the optical disc 1, the V-shaped groove 23 is formed on the bottom surface of the inner receiving portion 20, and the outer receiving portion 21 is formed.
Since the V-shaped groove 24 is formed on the bottom surface of the optical disk D, both outer peripheral edges of the outer peripheral surface of the optical disc D are V-shaped grooves 23, 2 due to their own weight.
It is pressed against both slopes of No. 4. Then, the inner receiving portion 20
The V-shaped groove 23 rises in a curved manner from the lower surface of the optical disk D to the upper surface through the side surface, and the weight of the optical disk D is supported by the lower V-shaped grooves 23 and 24 while the optical disk D collapses at the side. It will be held to prevent it.

As a result, the V-shaped grooves 23 and 24 of the disc storage portion 15 can securely hold both outer peripheral edges of the outer peripheral surface of the optical disc D, and support the optical disc D in a state where it stands substantially vertically. The holding action of the optical disc D by the V-shaped grooves 23 and 24 can be similarly obtained even when the thickness of the optical disc D changes. That is, when the thickness of the optical disc D is within the range of the width W of the V-shaped grooves 23 and 24, both outer peripheral edges of the optical disc D are inclined to both sides of the V-shaped grooves 23 and 24 regardless of whether the plate thickness is thick or thin. Since it comes into contact with the surface so as to be pressed against it, the optical disk D can be supported and held substantially vertically without rattling and can be held securely.

Thus, as in the present embodiment, 100 disk storage portions 15 are arranged on the rotary table 8 on the same circumference and provided radially, so that the optical disk D is stored in each disk storage portion 15 to form a donut shape. By supporting the optical disc D on the inner side of the rotary table 8, the gap between the adjacent optical discs D can be narrowed as much as possible. As a result, the space inside the housing 3 can be reduced and the overall size of the disk device can be reduced. On the other hand, the optical discs D extend radially outside the rotary table 8, and the gap between the adjacent optical discs D increases as it moves outward in the radial direction, so that the gap between the optical discs D can be sufficiently wide. It is possible to prevent the optical disks D from coming into contact with each other.

Next, a case will be described in which the optical disk D stored in the disk storage portion 15 of the rotary table 8 is taken out by the disk transfer mechanism 5 and transferred, and is mounted on the disk reproduction mechanism 6 to perform reproduction performance. The operation of transporting the optical disc D can be performed as follows, for example.

In the initial state before this operation is started, the stopper pin 33 is in the retracted position by the action of the stopper pin driving cam portion 56 of the cylindrical cam 50, as shown in FIG. 8 is not engaged with any of the lock recesses 32 provided in the lock plate 31, and therefore the rotary table 8 is in a rotatable state. Further, the rotary table driving cam portion 55 of the cylindrical cam 50 is in contact with the operator 88a of the control switch 88, and the detection signal thereof is input to the control device. Further, as shown in FIG. 5, by the action of the arm driving cam 52 of the cylindrical cam 50, the first arm 66 is pushed down and positioned below the rotary table 8, while the second arm 68 is retracted rearward. It is located below the chucking plate 44.

Furthermore, due to the function of the optical system driving cam portion 51 of the cylindrical cam 50, the rotary table 8 side of the frame plate 91 is slightly opened, and the disc table 97 is opened.
Are separated from the chucking plate 44. On the other hand, the cam pin 48 is provided on the disc guide driving cam portion 54.
Are not in contact with each other, and the guide link 47 has a spring 49.
The disk guide 45 is in the lowered state because it is pushed down by the spring force of.

From this state, after turning on the power switch 19a shown in FIG. 1 to supply power to the disc device, the optical disc D desired to be reproduced and played is selected, and the disc in which the selected optical disc D is stored. The address number of the storage section 15 is input by the operation switch 19c. At this time, the rotary table 8 can be manually turned by turning the operation dial 19b.
The disk storage unit 15 moved to the take-out position of the optical disk D
The address of is displayed on the display unit 3e. Further, the contents of the optical disc D can be visually confirmed by opening the front door 3d and looking at the label of the optical disc D accommodated in the disc accommodating portion 15 facing the opening 3c.

Next, the selection signal of the optical disk D selected as described above is input to the control device, whereby the control device sequentially outputs a predetermined control signal, and the table drive motor 38 and the cam drive are driven. Motor 6
2 is drive-controlled. The control device first supplies a drive current to the table drive motor 38 of the table drive mechanism 9, transmits the rotational force of the rotation shaft to the gear portion 36 of the rotary table 8 via the drive belt 39 and the reduction gear train 37, The rotary table 8 is rotationally driven until the disc storage portion 15 in which the selected optical disc D is stored moves to the take-out position in the front part of the disc transport mechanism 5.

In this case, the rotary position of the rotary table 8 is the first and second positions provided on the rotary table 8.
Optical sensors 2 installed in relation to the detection plates 25 and 26 of the
7 to 29 are constantly detected, and those detection signals are input to the control device. The control device executes the predetermined arithmetic processing based on the input signals from the optical sensors 27 to 29, so that the address number of the disc storage portion 15 at the predetermined position is always known by the control device.

When the desired disk storage portion 15 is installed facing the front portion of the disk transport mechanism 5 by the rotation of the rotary table 8, the control device causes the cam drive motor 6 to move.
2 is supplied with a drive current to rotate its rotary shaft to transmit the rotational force to the gear portion 53 of the cylindrical cam 50 via the drive belt 63 and the reduction gear train 61, so that the cylindrical gear 50 moves in one direction (for example, the forward rotation direction). ) To rotate. As a result, first, the cam pin 8 engaged with the stopper pin driving cam portion 56 is
3 moves to the rotation center side of the cylindrical cam 50 to move the slide lever 82 backward, and the swing lever 84 around the rotation shaft 85.
By swinging the stopper pin 33 to the rotary table 8
Rock to the side. As a result, the stopper pin 33 enters the lock concave portion 32 corresponding to the selected disc storage portion 15, whereby the rotary table 8 is locked at the desired position.

A little later than the movement of the stopper pin 33, the cam portion 52 is actuated by the operation of the arm driving cam portion 52.
Slide pin 72 fixed to the first L-shaped link 76 biased to the upper surface of the slide pin 7 and slide pin 7 fixed to the second L-shaped link 78 biased to the lower surface of the cam portion 52.
5, the upper slide pin 72 is pushed down, while the lower slide pin 75 is pulled up. As a result, the forked portion 76b provided at the tip of the horizontal portion 76a of the first L-shaped link 76 pushes down the slide pin 72 slidably engaged with the horizontal portion 76a, while the second L-shaped link 78 horizontally extends. A forked portion 78b provided at the tip of the portion 78a pulls up the slide pin 75 slidably engaged with the forked portion 78b.

As a result, in FIGS. 6 and 7, the first arm 66 pivots counterclockwise about the pivot shaft 65, while the second arm 68 opposes the pivot shaft 65. Rotate clockwise. Then, as shown in FIG. 8, the first transfer claw 70 provided at the tip of the first arm 66 enters the operation port 22 of the selected disk storage portion 15 of the rotary table 8 from below, and the disk concerned. Storage 1
The optical disc D accommodated in the optical disc 5 is pushed up from below and taken out from the disc accommodating portion 15, and the second transport claw 73 provided at the tip of the second arm 68 causes the optical disc D to move.
And holds the optical disc D so that the optical disc D is sandwiched in the diametrical direction. When the cylindrical cam 50 further rotates in the forward rotation direction, only the rotation direction of the second arm 68 reverses, and the first and second transport pawls 70 and 73 are rotated.
Cooperate to rotate counterclockwise.

Such first and second arms 66, 6
By the rotation of 8, the optical disk D is guided by the disk guide 45 and moved to the disk reproducing mechanism 6 side. And
When the optical disc D is held by the first and second conveying claws 70 and 73 and moves to a predetermined chucking position, the optical system driving cam portion 51 closes the opening side of the frame plate 91, and the optical disc D can be rotated. The disk table 97 held by is parallel to the chucking plate 44 held by the stand plate 41. As a result, the chucking plate 44 is attracted to the disc table 97 across the optical disc D by the magnetic force of the magnet fixed to the chucking plate 44. As a result, the optical disc D is rotatably held on the disc table 97, and the chucking operation of the optical disc D is completed.

After the chucking operation is completed, as shown in FIG. 9, the second arm 68 further rotates in the forward direction so that the second carrying claw 73 is separated from the optical disc D, while the first arm 68 is rotated in the normal direction. The arm 66 rotates in the opposite reverse rotation direction to the extent that the first conveying claw 70 moves away from the optical disc D. At the same time, the cam pin 48 fixed to the guide link 47 is pushed up by the action of the disc guide driving cam portion 54, and the guide link 47 is raised by the pushing amount. As a result, the outer end of the disc guide 45 is lifted away from the optical disc D by the engagement pin 46 fixed to the guide link 47. As a result, the preparation for the reproduction performance of the optical disc D is completed.

It is to be noted that the first and second transporting claws 70, 73 and the disc guide 45 are separated from the optical disc D by an appropriate amount because, during reproduction or the like, an extra vibration is generated in the optical disc D and it swings. Even if
This is to prevent the optical disc D from coming into contact with the first transport claw 70 and the like.

After that, the control device outputs a control signal for reproducing performance, drives the spindle motor to rotate the optical disc D mounted on the disc plate 97, and drives the pickup drive motor 96 to drive the optical disc D. The pickup 90 is moved in the radial direction of the optical disc D. At this time, the optical pickup 90 reads the information recorded on the information recording surface of the optical disc D, and the reproduction performance is executed based on the read information.

When the desired reproduction performance is completed, the control device causes the cam drive motor 62 and the table drive motor 3 to operate.
A control signal for rotating and driving 8 in the opposite direction to the above is output, and a transport operation for returning the optical disc D to the disc storage device 4 is performed. First, the control device outputs a control signal for rotationally driving the cam drive motor 62 in the direction opposite to the rotational direction, and rotationally drives the cylindrical cam 50 in the reverse direction opposite to the normal direction. As a result, from the state shown in FIG. 9, the guide link 47 is pushed down via the cam pin 48 by the rotation of the disc guide driving cam portion 54 of the cylindrical cam 50, and the engaging pin 46 integrated with this pushes down the guide link 47. The outer end of 45 is pulled down and approaches the upper side of the optical disc D.

At the same time, the rotation of the arm driving cam portion 52 of the cylindrical cam 50 causes the upper and lower cam pins 79 and 80 to move up and down, and first, the upper cam pin 79 is pushed down to move the first L-shaped link 76. While the lower cam pin 80 is pulled up, the second L-shaped link 78 rises. As a result, in FIG. 9, the first arm 66 rotates counterclockwise, the first transporting claw 70 approaches the optical disc D and supports it from the front side, while the second arm 68 rotates clockwise. , The second conveying claw 73 approaches the optical disc D and supports it from the rear side.

A little later than this, the optical system driving cam portion 5
The rotation of 1 moves the cam pin 92 to the side of the pivot 57 that supports the cylindrical cam 50, and opens the rotary table 8 side of the frame plate 91. As a result, the disc table 97 is separated from the chucking plate 44 against the attraction force of the magnet, the optical disc D is released, and the loading state is released. As a result, the optical disc D is supported by the first transport claw 70 and the second transport claw 73 from below at the front and back, and at the same time by the disc guide 45 at the top.

When the cylindrical cam 50 further rotates in the reverse direction, the arm driving cam portion 52 rotates to rotate the upper cam pin 7
9 is pushed up and the lower cam pin 80 is pulled up, so that the first L-shaped link 76 and the second L-shaped link 78 both rise. As a result, as shown in FIG. 8, both the first arm 66 and the second arm 68 rotate clockwise about the rotation shaft 65. As a result, as shown in FIG. 7, the optical disc D moves to the rotary table 8 side along the disc guide 45, and the first transporting claw 70 passes through the operation port 22 of the disc storage portion 15 to move the rotary table 8. The optical disc D is returned to the original disc storage portion 15 by moving downward.

At the same time, the slide lever 82 is pushed out by the rotation of the rotary table driving cam portion 55, so that the stopper pin 33 is retracted by the swing of the swing lever 82 and is engaged with the lock recess 32. Is canceled. As a result, the rotary table 8 becomes rotatable and the operation for reproducing and playing the next optical disk D becomes possible.

As described above, the present invention is not limited to the above embodiment. For example, in the above embodiment, a read-only optical disk D is used as a disk-shaped recording medium, and a large number of the optical disks D are used. A case where a recording medium storage device is configured by a rotary table that can be stored side by side in the circumferential direction at the same time and a read-only CD player having this rotary table is applied as an example of a disk device has been described. It goes without saying that a write-once type magneto-optical disk that can be written only once and a rewritable type that can be rewritten many times is used as a medium, and can be applied to a disk device that can perform not only reproduction but also recording.

Further, in the above-described embodiment, an example in which a groove having a true V-shaped cross section is used as a specific example of the V-shaped groove has been described. However, for example, a groove having an inverted trapezoidal cross section is applied. You can also Further, the example in which the disk storage portions are radially provided on the rotary table as the recording medium storage device has been described. For example, the disk storage portions are provided in parallel on the stocker formed of a rectangular housing, and the stocker is reciprocally slid. You can also do it. As described above, the present invention can be variously modified without departing from the spirit thereof.

[0083]

As described above, according to the present invention,
In the receiving part that comes into contact with the disk-shaped recording medium in the recording medium storage part,
Since a V-shaped groove having a substantially V shape that supports both outer peripheral edges of the outer peripheral surface of the disc-shaped recording medium is provided, the disc-shaped recording medium is recorded regardless of the thickness of the disc-shaped recording medium. It is possible to securely hold the storage portion without rattling and support the storage portion in a state of standing upright so as to be substantially vertical. Therefore, only the non-signal recording area where the information signal is not recorded on the outer peripheral edge of the disk-shaped recording medium contacts the disc storage portion, and the signal recording area where the information signal on the inner side in the radial direction is recorded is the disc. It is possible to reliably prevent contact with the signal recording area of the disk-shaped recording medium accommodated in the side wall of the accommodation section or the adjacent disk accommodation section, and therefore the signal recording area is damaged and damaged. It is possible to prevent the occurrence of defects.

Further, according to the present invention, a recording medium storage device having a rotary table provided with a plurality of recording medium storage portions capable of storing a disc-shaped recording medium, and recording and / or recording of information on the disc-shaped recording medium. A recording and / or reproducing mechanism for reproducing, a recording medium conveying mechanism for conveying a disc-shaped recording medium between the recording medium housing device and the recording and / or reproducing mechanism, and a receiving portion of the recording medium housing section, Since a V-shaped groove having a substantially V shape for supporting both outer peripheral edges of the outer peripheral surface of the disk-shaped recording medium is provided, the gap between the adjacent disk-shaped recording media is narrowed as much as possible inside the rotary table. On the outside, the gap can be made sufficiently wide. Therefore, it is possible to reduce the size of the disk device as a whole by reducing the space in the housing, and also to secure a sufficiently large gap between the adjacent disk-shaped recording media outside the rotary table. The disc-shaped recording medium can be reliably taken in and out, and the reliability of the loading operation of the disc-shaped recording medium can be improved.

[Brief description of drawings]

FIG. 1 shows an embodiment of a disc device of the present invention, and is an external perspective view of a state in which a front door is opened.

FIG. 2 shows an embodiment of the disk device of the present invention and is an external perspective view with the front door closed.

FIG. 3 is a plan view of the internal structure showing an embodiment of the disk device of the present invention.

FIG. 4 is an enlarged view of a main part of FIG. 3 and is a plan view of a disc carrying mechanism according to a disc device of the present invention.

FIG. 5 is a perspective view showing a disc carrying mechanism according to the disc device of the present invention.

FIG. 6 is a vertical cross-sectional view showing an embodiment of the disk device of the present invention.

FIG. 7 is an explanatory diagram showing an operating state of the disc transport mechanism according to the disc device of the present invention, showing a state before the optical disc is transported.

FIG. 8 is an explanatory diagram showing an operating state of the disc transport mechanism according to the disc device of the present invention, showing a state during transport of the optical disc.

FIG. 9 is an explanatory diagram showing an operating state of the disc transport mechanism according to the disc device of the present invention, showing a state after the optical disc is transported.

FIG. 10 is a vertical cross-sectional view of a rotary table showing an embodiment of a recording medium storage device of the present invention.

11 is an enlarged sectional view showing a main part of the rotary table shown in FIG.

FIG. 12 is an enlarged plan view showing a main part of the rotary table shown in FIG.

13 is a rotary table AA of FIG.
It is sectional drawing of a line, a BB line, and a CC line part.

FIG. 14 is an explanatory view showing a cross section of a disk storage portion of a conventional recording medium storage device.

[Explanation of symbols]

 4 disc storage device (recording medium storage device) 5 disc transport mechanism (recording medium transport mechanism) 6 disc playback mechanism (recording and / or playback mechanism) 8 rotary table 15 disc storage portion (recording medium storage portion) 16 inner support 17 Outer support 18 Partition wall 20 Inner receiving part 21 Outer receiving part 22 Operation port 23, 24 V-shaped groove 44 Chucking plate 45 Disc guide 50 Cylindrical cam 60 Cam drive mechanism 66 First arm 68 Second arm 70 First Transport claw 73 Second transport claw 90 Optical pickup 97 Disc table D Optical disc (disc-shaped recording medium)

Claims (5)

[Claims] 1. A recording medium housing device provided with a recording medium housing part capable of vertically housing a disk-shaped recording medium, wherein the disk-shaped recording is carried out in a receiving part of the recording medium housing part in contact with the disk-shaped recording medium. A recording medium storage device comprising a V-shaped groove having a substantially V-shape that supports both outer peripheral edges of the outer peripheral surface of the medium. 2. The recording medium storage device according to claim 1, wherein the recording medium storage portion comprises a concave portion curved and formed in an arc shape, and the recording medium storage portion is provided on at least both ends in the curving direction of the concave portion on the bottom surface thereof. A recording medium storage device comprising a receiving portion having the V-shaped groove. 3. The recording medium storage device according to claim 1 or 2, wherein the recording medium storage portion is formed radially on a rotary table rotatably supported by a housing, with an axis of a rotation center thereof as a center. A recording medium storage device comprising a plurality of recesses. 4. A recording medium storage device having a rotary table provided with a plurality of recording medium storage portions capable of storing a disc-shaped recording medium in a vertical direction, and recording and / or reproducing information on the disc-shaped recording medium. The recording and / or reproducing mechanism to be performed, and one of the plurality of recording media housed in the rotary table is selectively taken out to perform the recording and / or reproduction.
Or a recording medium conveying mechanism that conveys the recording medium to the reproducing mechanism or takes out the recording medium mounted in the recording and / or reproducing mechanism and conveys the recording medium to the recording medium accommodating device. A disk device, wherein a V-shaped groove having a substantially V shape that supports both outer peripheral edges of the outer peripheral surface of the disc-shaped recording medium is provided in a receiving portion that contacts the recording medium. 5. The disk device according to claim 4, wherein the recording medium storage portion of the rotary table comprises a concave portion curved in an arc shape, and the bottom surface of the concave portion is at least at both ends in the bending direction. A pair of receiving portions having the V-shaped groove is provided in the opening portion, and an operation port through which an arm of the recording medium feeding mechanism is taken in and out for feeding the disk-shaped recording medium is opened between the receiving portions. Disk device.