JP2003109357A - Disk type recording and/or playing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To retract an unused optical pickup in a space saving manner in a disk type recording and playing device which is provided with a plurality of optical pickups and can compatibly record and/or play a plurality of types of disk-shaped recording media with different formats by using the plurality of optical pickups. SOLUTION: In the case that a cartridge 51 for DVR is mounted in a recessed part 14 of a tray 13, a pickup 31 for DVD is retracted to a part of a semicircular notch 17 at the front side of an opening 15 of the tray 13. Meanwhile, in the case that a bear disk 52 is housed in the recessed part 14 of the tray 13 and loaded, a pickup 32 for DVR is retracted into a U-shaped notch 16 at the back side of the opening 15 of the tray 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc type recording and / or reproducing apparatus, and more particularly to a disc type recording and / or reproducing apparatus for recording and / or reproducing by a pickup while rotating a disc-shaped recording medium. Regarding

[0002]

2. Description of the Related Art A disk type recording / reproducing apparatus for recording and / or reproducing using a disk-shaped recording medium composed of an optical disk such as a CD (compact disk) or a DVD is widely used for recording and reproducing music and video. Has been. Further, such a disk-shaped recording medium is used as a storage device of an information processing device such as a computer.

In this case, the disc-shaped recording medium is placed on a tray, and the tray is pulled from the pull-out position to the recording / reproducing position. Then, in this state, the turntable that constitutes the rotation drive unit rises from below, and the disk-shaped recording medium is levitated from the tray and driven to rotate.
In such a state, recording or reproducing is performed on the disc-shaped recording medium while moving the optical pickup in the radial direction.

[0004]

The optical discs used in such disc type recording / reproducing apparatus include CDs (compact discs), DVDs, and so-called D's for high density recording.
There are various formats such as VR. Moreover, the wavelength of the laser light used differs depending on each format. CD uses 780 nm laser light, DVD
Uses 650 nm laser light. On the other hand, DVR
Uses 405 nm laser light.

Although the DVD and CCD differ in the wavelength of the laser light used as described above, they can be configured as a single optical pickup by the technique of a two-wavelength lens or a laser coupler. On the other hand, when considering a disc-type recording / reproducing apparatus that compatiblely uses the DVR format for high-density recording, it is compatible with the optical pickups of the above two types of formats and also uses a laser beam of 405 nm. If it is an optical pickup that can be used, the pickup becomes large in size, the structure becomes complicated, and the adjustment becomes very troublesome.

There are bare disks and cartridge type disks as the optical disks constituting the recording medium of the disk type recording / reproducing apparatus. Here, especially, when a cartridge type medium such as a DVR is placed on the tray while being turned upside down and the tray is pulled in, there is no shutter to open / close on the lower surface of the cartridge, so the spindle motor that constitutes the cartridge shell and rotation drive unit. Interfere with normal chucking operation. In some cases, the verticality with respect to the chassis may change due to the pressure applied to the spindle motor, and the predetermined accuracy may be lost due to changes in the dimensions of the chassis. In the worst case, a failure may occur.

On the other hand, in the case of a bare disk, when it is mounted upside down, the recording / reproducing operation cannot be performed, and there is no problem in chucking itself. However, if the tray is not pulled in while the bare disk is placed at the correct position on the tray, the bare disk will not be correctly loaded at the predetermined position in the device, and the spindle motor and the disk recording that make up the rotation drive unit will not be recorded. The surfaces may interfere with each other and damage the disc.

In particular, if the tray can be used to mount both the cartridge type disk-shaped recording medium and the bare disk, a concave portion matching the cartridge having a large outer casing is formed on the tray, and the above cartridge is stored. There is a problem that it is difficult to correctly position the bare disk with respect to the recessed portion.

The present invention has been made in view of the above problems, and enables a recording / reproducing operation by using a plurality of different types of disc-shaped recording media compatible with each other, and a cartridge-type disc-shaped recording medium is provided. It is an object of the present invention to provide a disc type recording and / or reproducing apparatus capable of preventing a disc-shaped recording medium of a bare disc type from being loaded while being turned upside down, and capable of correctly positioning and loading the disc-shaped recording medium.

[0010]

The main invention of the present application is a disk type recording and / or reproducing apparatus in which recording and / or reproducing is performed by a pickup while rotating a disk-shaped recording medium. A plurality of pickups respectively provided for the disc-shaped recording media of different types, a tray for moving the disc-shaped recording medium between the pull-out position and the recording / reproducing position, and an opening of the tray moved to the recording / reproducing position. An optical pickup that is formed so as to be continuous with an opening of the tray and a rotation drive unit that penetrates and rotates the disc-shaped recording medium, and is used for a disc-shaped recording medium having a format different from that of the mounted disc-shaped recording medium. And disk type recording and / or
Alternatively, it relates to a reproducing device.

[0011] Here, two pickups are provided, and the pair of notches formed at a position separated by about 180 degrees in the circumferential direction of the rotation drive unit with respect to the opening for receiving the rotation drive unit of the tray have the two pickups. Each pickup may be stored. Further, the pair of cuts may be arranged at positions separated by approximately 180 degrees in the circumferential direction of the rotation drive unit and along the moving direction of the tray. Further, the cartridge type disc-shaped recording medium mounted on the tray may be taken out through a notch formed on the pulling out position side of the tray of the pair of notches.

The optical pickup is equipped with two optical pickups, one of which reads and writes to a DVD with a laser light of 650 nm and the other of which reads and writes to a CD with a laser light of 780 nm, and the other optical pickup has a laser of 405 nm. DV by light
When reading or writing to R, and when a DVD or CD consisting of a bare disk is pulled into the recording / reproducing apparatus by the tray, the other optical pickup for the DVR retracts to the notch on the rear side of the tray, When the cartridge type DVR is pulled to the recording / reproducing position, one of the optical pickups for the DVD and the CD may be retracted to the notch on the front side of the tray.

Another main invention of the present application is a disk type recording / reproducing apparatus in which recording and / or reproduction is performed by a pickup while rotating the disk-shaped recording medium, and the disk-shaped recording medium is pulled out and recorded / reproduced. The present invention relates to a disc-type recording and / or reproducing apparatus, which comprises a tray which moves between a position and a position, and the tray is formed with a recess for accommodating the disc-shaped recording medium.

Here, the disc-shaped recording medium may be a cartridge type disc-shaped recording medium, and the cartridge may be housed in the recess. An erroneous mounting prevention protrusion may be provided on the outer peripheral side of the recess of the tray, and a recess for receiving the erroneous mounting prevention protrusion when properly mounted may be formed on the outer periphery of the cartridge.

Another main invention of the present application is a disc type recording and / or reproducing apparatus in which recording and / or reproducing is performed by a pickup while rotating the disc-shaped recording medium, and the disc-shaped recording medium is pulled out. A disc-type recording and / or reproducing apparatus, comprising: a tray that moves between a position and a recording / reproducing position; and a guide unit that correctly positions a disc-shaped recording medium placed on the tray. It is about.

Here, the guide means is attached to the tray so as to be retractable, and is composed of a plurality of guide members urged in a protruding direction by springs so as to guide the outer peripheral portion of the bare disk type disk-shaped recording medium. Placed in
When the bare disc is placed on the two guide portions, the elastic restoring force of the spring is set so as to project and support the bare disc, and the bare disc in an inclined state is placed in the correct position by the guide member. You may be guided. Further, when a cartridge type disc-shaped recording medium is placed on the tray, the elastic restoring force of the spring may be set so that the guide member is submerged in the tray due to the weight of the cartridge. When the cartridge is placed on the tray so that the side end of the cartridge slides on the upper surface of the tray, the guide surface provided on the guide member guides the cartridge to guide it to the correct position. You may

Still another main invention of the present application is to move the disk-shaped recording medium by a tray from a first position where the disk-shaped recording medium is attached and detached to a second position where recording and / or reproduction is performed by a head. In the disc type recording and / or reproducing apparatus according to the present invention, a notch is provided in the tray in front of the placing position where the disc recording medium is placed, and the disc recording medium can be taken out by inserting a finger into the notch. The present invention relates to a disk type recording and / or reproducing apparatus characterized by the above.

Here, it is preferable that a cartridge having a concave portion to be picked up by a finger on the front side can be placed at a placing position where the disc-shaped recording medium is placed.

A preferred embodiment of the invention included in the present application is a recording / reproducing apparatus capable of compatiblely using a cartridge type optical disc and a bare disc type optical disc, by providing a notch or a hole at the front of the tray. A tray mechanism that secures a retreat space for the pickup and improves handleability when inserting and removing a cartridge. When a cartridge type DVR optical disk is inserted, refer to the signal from the cartridge detection switch. Then, the bare disc type DVD or CD optical pickup is retracted into the notch on the front edge side of the tray, and when the bare disc type DVD or CD is loaded, the signal of the cartridge detection switch is referred to. Cartry An optical pickup for a DVR Jitaipu so that is retracted into the notch of the rear edge of the opening of the tray. Moreover, the notch formed in front of the opening of the tray has a substantially semi-circular shape so that the user can easily put his / her finger in the notch from any direction and grasp the cartridge when the tray is moved to the pull-out position. There is.

Therefore, according to such a structure, when considering a structure in which one recording / reproducing apparatus uses optical disks of two or more formats, it is possible to particularly reduce the retreat space of the optical head. Further, it becomes easy to handle the cartridge or the disc with the tray moved to the pull-out position.

Another preferred embodiment of the invention contained in the present application is a disk type recording / reproducing apparatus using a DVR cartridge, wherein the loading of the cartridge is a tray system, and the tray on which the cartridge is loaded has an upper surface with respect to the cartridge. Therefore, a concave portion having a clearance of about 0.5 mm is formed on the outer peripheral side, and at the outer peripheral side of the concave portion, one or more protruding portions for preventing erroneous mounting are provided upward from the bottom surface thereof. The groove is provided on the bottom side of the cartridge and is received by the loading grip for the changer, so that the cartridge cannot be mounted on the tray in an inverted state.

In a device in which a DVR cartridge is used and the cartridge is loaded by a tray, the recessed portion formed in the tray has a shape substantially the same as that of the DVR cartridge, and the depth thereof is equal to that of the cartridge. By making the size approximately equal to the thickness of the DVD, it becomes impossible to insert a cartridge having a shape different from that of a DVR cartridge such as a DVD-RAM, and thereby it is possible to prevent an unusable disc-shaped recording medium from being inserted by mistake. . D as above
If a recording medium such as a VD-RAM is incorrectly inserted, the data recorded on the DVD-RAM may be erased depending on the laser power difference. Are prevented by the recess formed in the tray.

Further, at least one erroneous mounting preventing projection provided in the recess formed by digging the tray allows the edge portion of the outer casing of the cartridge to have the above-mentioned projection when the user inserts the cartridge upside down. It will not be caught in the recess and will not fall into the recess. This allows the user to recognize that the mounting direction of the cartridge is upside down. Also, if you accidentally insert the cartridge upside down and move the tray to the recording / playback position, the cartridge is protruding on the tray,
The tray cannot be completely retracted, and the disc loading operation is interrupted. Therefore, the tray can be discharged in this state. When the cartridge is properly installed in the concave portion of the tray, the cartridge is housed in the concave portion formed by digging the tray, so that the cartridge does not protrude upward from the surface of the tray, thereby performing the proper loading operation. .

Yet another aspect of the invention contained in this application is:
In a disc-type recording / reproducing device that is compatible with a cartridge-type disc-shaped recording medium and a bare disc-type recording medium, the position of the disc is regulated on the tray when the bare disc is loaded, and the disc chucking is performed. A guide mechanism is provided so that the above operation can be reliably performed, and when a cartridge type disc-shaped recording medium is inserted, the guide mechanism for guiding the bare disc by the weight of the cartridge is stored in the tray. There is.

Particularly, when the bare disc is placed on the tray in a state of being eccentric with respect to the disc mounting position on the tray, the disc rides on the two bare disc guides of the four bare disc guides. For this purpose, the spring force of the bare disc guide is set so that the weight of the disc is supported by the two bare disc guides, so that the disc slides down the slope on the disc guide and is properly guided to the predetermined position. ing.

On the other hand, when the cartridge is placed on the tray, the weight of the cartridge is applied to the four bare disk guides. At this time, the springs built in the four bare disc guides are set so that the force supported by the bare disc guides is smaller than the weight of the cartridge, and therefore the bare disc guides are set in the tray. Is stored. Also, when the user mounts the cartridge on the tray, it is provided on the bare disk guide when the front end of the cartridge is received by the tray and inserted so as to slide on the upper surface of the tray, not from above the tray. The slope of the guide surface catches this, which allows the bare disc guide to be stored in the tray.

Therefore, even when the tray is being loaded or when vibration is applied from the outside, the bare disk guide properly holds the position of the disk so that the bare disk does not move in the surface direction and the center thereof does not shift. You can Even if the user removes the bare disk from the center of the tray, the bare disk can be correctly centered by the bare disk guide. Further, even if the cartridge is introduced into the tray in any posture, it can be properly mounted in the concave portion of the tray while being guided by the bare disk guide. Moreover, at this time, the bare disk guide is stored so as to be submerged in the tray.

[0028]

BEST MODE FOR CARRYING OUT THE INVENTION (1) Description of Configuration FIGS. 1 and 2 show the overall configuration of a disk type recording / reproducing apparatus according to an embodiment of the present invention, which is a flat rectangular parallelepiped. An outer casing 10 having a shape is provided.
Note that, as shown in FIGS. 1 and 2, the upper portion is shown open. A laterally long opening 12 is formed in the front panel 11 that closes the front side opening of the outer casing 10, and the tray 13 can be drawn out by the laterally long opening 12.
Are incorporated into the outer casing 10.

The tray 13 has a recess 14 for receiving a cartridge or a bare disk in the substantially central portion thereof, and an opening 15 extending in the longitudinal direction so as to cross the recess 14.
Are formed. A U-shaped notch 16 is continuously provided on the back side of the opening 15, and a semicircular notch 17 is formed on the front side.

A drive unit 18 is provided on the back side of the tray 13, and a motor 19 for driving the drive unit 18 is attached. The tray 13 is slidably supported by the step portions 20 on the inner side of the outer casing 10 on both sides thereof, and the pinion constituting the output end of the drive unit 18 meshes with the rack 21 below the step portion 20. As a result, as shown in FIG. 1 and FIG. 2, it is self-propelled so that it can be pulled out and stored in the horizontally elongated opening 12.

The upper part of the bottom plate of the outer casing 10 is shown in FIGS.
A base unit 25 as shown in is provided. The base unit is composed of a chassis made of sheet metal, and a turntable 27 which constitutes a rotary drive unit of the disk is provided at a substantially central portion thereof via a bracket 26.
The turntable 27 is directly driven by the motor below it.

On the base unit 25, a DVD pickup 31 is arranged on the front side of the turntable 27 and a DVR pickup 32 is arranged on the rear side thereof. Both sides of the DVD pickup 31 are supported by a guide rod 33 and a feed screw 34, and the feed screw 34 is rotationally driven by a stepping motor 35, so that the DVD pickup 31 is moved in the radial direction of the optical disc. There is.

On the other hand, the rear DVR pickup 32 is guided by the pair of guide rods 37 and 38 on both sides, and the DVR pickup 32 is moved in the radial direction with respect to the optical disc. Is provided with a feed screw 39. This lead screw 3
9 is driven by a stepping motor 40, and the feed screw 39 is screwed into a nut 41 of the pickup 32.

On the base unit 25, a pair of support rods 45 are erected on both front sides thereof, and support arms 46 are integrally connected on both rear sides thereof. The support rod 45 and the support arm 46 come to project from the openings 47 and 48 of the tray 13 when the base unit 25 is lifted by an elevating mechanism (not shown), and thereby the DVR cartridge mounted on the tray 13. The 51 is supported from the lower surface at its four corners.

The tray 13 has a flat panel shape as shown in FIGS. 13 to 15, and the recess 14 is formed in the substantially central portion thereof as described above. The recess 14 is for accommodating a DVR cartridge 51 described later, and is about 0.5 mm on the outer peripheral side with respect to the cartridge.
It is shaped so that clearance is generated. The bottom of the recess 14 is formed as an opening 15, a U-shaped cut 16 is continuously formed behind the opening 15, and a semicircular cut 17 is continuously formed on the front side. U-shaped notch 16 is DVR pickup 32
And the semicircular notch 17 constitutes a retreat space for the DVD pickup 31.

In the vicinity of the corner on the front side of the concave portion 14 of the tray 13, erroneous mounting preventing projections 55 and 56 are formed on the left and right portions thereof, respectively. These protrusions 55 and 56 are received in the recesses 57 and 58 of the DVR cartridge 51 shown in FIGS. 19 to 22, so that the cartridge 51 is mounted in the recess 14 of the tray 13 in the correct posture. is there.

The erroneous mounting preventing protrusion 55 located on the upper side in FIG. 14 is received in the recess 57 shown in FIGS. 2 and 21 of the cartridge 51. On the other hand, the lower erroneous mounting preventing projection 56 shown in FIG.
It is received in the recess 58 shown in FIG. As a result, the cartridge 51 is set in the recess 14 of the tray 13 as shown in FIG.
Be installed in the correct posture.

Further, in the recess 14 of the tray 13, FIG.
As shown in FIGS. 16 and 23, four bare disk guides 60 are attached. Bare disc guide 60
As shown in FIGS. 24 and 25, is composed of a synthetic resin molded body, and elastic legs 61 are respectively provided on the left and right sides thereof, and the claws 62 are provided at the tip ends of these elastic legs 61 and outside thereof. . Further, a concave portion 63 is formed inside.

On the other hand, mounting holes 64 are formed at the mounting positions in the recesses 14 of the tray 13 to which the bare disk guide 60 is mounted, and the mounting holes 64 are formed.
An arm 65 is integrally formed on the lower side as shown in FIGS. 27, 29, and 30 to 33.
Has a pin 66 on its tip side. A compression coil spring 67 is attached to the pin 66.
The upper end of 7 is received in the recess 63 of the bare disk guide 60. In such a state, in the bare disk guide 60, the elastic legs 61 are inserted into the mounting holes 64, and the claws 62 on both sides are engaged with the edges of the mounting holes 64. Further, the bare disk guide 60 has an inclined surface 68 on the front end side thereof, and the inclined surface 68 constitutes a guide surface of the bare disk guide 60.

(2) Description of Operation Next, the operation of the recording / reproducing apparatus having the above configuration will be described. In the recess 14 of the tray 13 shown in FIG.
This tray 13 with the cartridge 51 for
When the cartridge is drawn into the outer casing 10, the DVR cartridge 51 is attached to this apparatus as shown in FIGS. 7 to 9. At this time, the step-up motor 35 and the feed screw 34 retract the DVD pickup 31 to the outer peripheral side of the DVR cartridge 51 and to the front side of the tray 13. At this time, the DVR cartridge 51 is supported by the pair of support rods 45 and the pair of support arms 46 on the base unit 25, respectively. The rod 45 and the arm 46 both face the recess 14 of the tray 13 through the openings 47 and 48 of the tray 13 by the raising operation of the base unit 25, and correctly position the DVR cartridge 51.

On the other hand, the bare disk 52 is the tray 1
When the tray 13 is retracted while being placed in the recess 14 of the tray 3, the tray 13 is retracted into the outer casing 10. The positional relationship of the bare disk 12 on the base unit 25 at this time is as shown in FIGS. That is, in this case, the stepping motor 40 causes the feed screw 3
9 retreats the DVR pickup 32 to the rear side of the tray 13. That is, the DVR pickup 32 is located on the outer peripheral side of the bare disk 52. Then, the step-up motor 35 positions the DVD pickup 31 on the lower surface of the bare disk 52 via the feed screw 34. In such a state, the bare disk 52 is rotationally driven by the turntable 27, and recording and / or reproduction is performed on the bare disk 52.

As described above, the recording / reproducing apparatus according to the present embodiment is a recording / reproducing apparatus capable of using two disc-shaped recording media having formats which are incompatible with each other, such as DVD / CD and DVR. Here, the base unit 25 is formed of sheet metal or resin, and the housing 1 of this device is
It is provided within 0. The optical pickup 31 for DVD / CD is arranged on the front side or the front side on the base unit 25, and the optical pickup 32 for DVR is arranged on the rear side. On the other hand, the optical disk rotating motor is commonly used with the turntable 27 and a single motor is used.
The two types of optical pickups 31 and 32 described above are movable in the radial direction of the optical disk at positions displaced by 180 degrees in the circumferential direction of the turntable 27 with the center of the center of FIG.
The two types of optical pickups 31 and 32 are capable of tilting and position adjustment independently.

Here, the DVR pickup 32, which is an optical pickup of a format for high-density recording, which is particularly vulnerable to dust that may penetrate into the apparatus, is positioned on the inner side with respect to the outer casing 10. By disposing it at the rear of the base unit 25, it is possible to take measures against dust. Two types of optical pickup 3
If at least one of the guides 33, 37, and 38 on which the guides 1, 32 move is made common to at least one of the main shafts or the auxiliary shafts, the number of parts can be reduced.

Further, in the case where the bare disk 52 of DVD / CD is used in this apparatus, in order to prevent the DVR pickup 32 from hitting the bare disk 52, the side opposite to the turntable 27 in plan view. The guide rods 37 and 38 for moving the DVR pickup 32 are provided so as to move to. These guide rods 37, 38 are parts necessary for the DVR pickup 32 to access the DVR cartridge 51 and move it in the radial direction with respect to the optical disc in this cartridge, but the length thereof is made slightly longer. The evacuation mechanism for the DVR pickup 32 is completed by itself.

On the contrary, when the DVR cartridge 51 is used, the DVD / CD pickup 31 is the DVR.
Here, the lengths of the guide rod 33 and the feed screw 34 are increased so that the guide rod 33 and the feed screw 34 are moved to the outer peripheral side opposite to the turntable 27 so as not to interfere with the cartridge 51. The guide rod 33 and the feed screw 34 are DVD
The pickup 31 for DVD is a component necessary for accessing the bare disk 52, but the DVD pickup 31 can be retracted by slightly increasing the length thereof.

In the above embodiment, the turntable 27 is arranged with the pair of optical pickups 31 and 32.
The optical pickups 31 and 32 are arranged 180 degrees apart from each other in the circumferential direction and are arranged on the front side and the back side of the base unit 25. Does not have to be. Ie 90
The two pickups 31 and 32 may be movably arranged in a direction orthogonal to each other, or the intersecting angle between the two moving directions may be set to an arbitrary angle such as 60 degrees. These two types of optical pickup 3
The disposition of the moving parts 1 and 32 in the moving direction can be appropriately selected in relation to the disposition of other components in the outer casing 10 or the base unit 25.

The tray 13 is formed of resin or sheet metal into a flat panel shape as shown in FIGS.
As shown in FIGS. 16 and 17, the disc type recording / reproducing apparatus is slidably mounted inside. Then, the turntable 27 constituting the disk rotating portion is commonly used as one, and as described above, the pair of optical pickups 31 and 32 are arranged at positions separated by 180 degrees in the circumferential direction about the turntable 27 as a center. There is.

The DVD pickup 31 used for the bare discs of DVD and CD is arranged on the front panel 11 side of the apparatus and on the front side. This optical pickup 31 is 650 nm when used for DVD.
Emits a laser beam of 780 and is used for a CD
Laser light of nm is emitted. On the other hand, the DVR pickup 32 is arranged on the rear side of the turntable 27. The pickup 32 emits a 405 nm laser beam.

These optical pickups are cartridge detection plates 70 for mechanically detecting the outer shape of the cartridge.
One of the pair of optical pickups 31 and 32 is used and the other is set to the standby state by monitoring and discriminating the signal. Here, the optical pickup, to which the roles are given as the standby state, retracts to the tray standby position and holds the retracted state until the disc-shaped recording medium is ejected. A semicircular cut 17 in front of the opening 15 of the tray 13 is allocated as a standby space for the DVD pickup 31, and a U-shaped cut 1 on the rear side of the opening 15 of the tray 13 is used as a standby space for the DVR pickup 32.
6 is assigned.

In particular, the semicircular notch 17 in front of the tray 13 from which the DVD pickup 31 retracts has its finger inserted into the notch 17 when the tray 13 is moved to the pull-out position as shown in FIG. The cartridge 51 or the bare disk is easily taken out. Therefore, it becomes easy to handle the cartridge 51 or the bare disk 52 when the tray 13 is ejected as shown in FIG.

Moreover, the DVR cartridge 51 is provided with a concave portion 75 into which the finger is inserted on the upper surface of the outer casing thereof. Therefore, it is possible to hold the case of the cartridge 51, for example, by putting a thumb in the recess 75. Therefore, by providing such a concave portion 75 into which the finger is inserted, it becomes very easy to mount the cartridge 51 on the tray 13 or remove it from the tray 13.

Further, this disk type recording / reproducing apparatus adopts a tray system as a loading mechanism for the disk-shaped recording medium. This makes it possible to easily use a bare disk such as a DVD / CD without a cartridge and a cartridge type optical disk in the same disk drive device. Moreover, the tray 13 has a DVR.
The cartridge 51 has a matching shape, and the concave portion 14 is formed by digging so that a clearance of about 0.5 mm is generated on the outer peripheral side of the cartridge 51. Here, the depth of the recess 14 is the thickness of the cartridge 51 and is set to a value slightly larger than the height of the disc in the axial direction. Therefore, when the cartridge 51 is mounted in the recess 14 as shown in FIGS.
The upper surface of the cartridge 51 does not protrude from the upper surface of the tray 13.

The cartridge 51 is shown in FIGS.
As shown in FIG.
8 are provided. These recesses 57 and 58 form a loading grip for the changer, and the cartridge 5
1 is provided on the bottom surface side, and does not penetrate to the top surface. Corresponding to the recesses 57 and 58, the recesses 14 of the tray 13 are formed with erroneous mounting preventing projections 55 and 56 as shown in FIG.

Therefore, when the cartridge 51 is properly mounted as shown in FIGS. 17 and 18, the recesses 57 and 58 of the cartridge 51 are provided with the erroneous mounting preventing projection 55,
56 is correctly received, so that the recess 1 of the tray 13
The cartridge 51 is properly attached to the cartridge 4. On the other hand, when the cartridge 51 is mounted upside down, the edge portion of the cartridge 51 has the erroneous mounting prevention projection 5
5, 56, which causes the recess 14 of the tray 13 to
The cartridge 51 is not properly attached to the cartridge. As a result, the user can surely recognize that the user has mistakenly installed the device.

Further, this disk type recording / reproducing apparatus is shown in FIG.
As shown in FIGS. 33A to 33C, bare disk guides 60 are attached to the recesses 14 of the tray 13 at four locations.
The bare disk guide 60 is a molded part having a shape as shown in FIGS. 24 and 25. The bare disk guide 60 has a compression coil spring 67 in its recess 63.
Is accommodated in the mounting hole 64 and attached to the pin 66 on the upper portion of the arm 65 as shown in FIGS. 30 and 31.

When the cartridge 51 is housed in the recess 14 of the tray 13 as shown in FIG. 18, the weight of the cartridge 51 is applied to the four bare disk guides 60, whereby the bare disk guide 60 is compressed by the compression coil spring 67. 32, and is stored so as to be submerged in the recess 14 as shown in FIGS. When a user inserts the cartridge 51, the front end of the cartridge 51 slides on the receiving surface of the tray 13 instead of from above the tray 13, and the bare disk guide 6
An inclined surface 68 provided on the front end side of 0 catches the front end of the cartridge 51 and guides it into the recess 14 of the tray 13.

On the other hand, the bare disk 52 is the tray 1
When the tray 13 is placed in the recess 14 of FIG. 3, the bare disk guide 60 holds the position of the bare disk 52 so that the bare disk 52 does not move and its center does not shift when the tray 13 moves to the recording / reproducing position. . If the user intentionally removes the bare disk 52 from the center of the tray 13, the weight of the bare disk 52 is added to two of the four bare disk guides 60.
At this time, the compression coil spring 6 of the bare disk guide 60
7 is a bare disk 52 on which half the spring force is applied.
The bare disk guide 60 is not stored in the tray 13 due to the elastic restoring force of the compression coil spring 67, but is in a state of protruding from the concave portion 14 of the tray 13 as shown in FIGS. 30 and 31. Therefore, bare disk 52
Will be centered by sliding down the guide surface 68 provided on the bare disk guide 60 and will be correctly guided to a predetermined position of the recess 14.

[0058]

The main invention of the present application is to record and / or record by a pickup while rotating a disc-shaped recording medium.
Or disk type recording and / or playback
Or, in the reproducing apparatus, a plurality of pickups respectively provided corresponding to a plurality of types of disc-shaped recording media having different formats, a tray for moving the disc-shaped recording medium between a pulling position and a recording / reproducing position, and a recording / reproducing position The drive unit for rotating the disk-shaped recording medium by penetrating into the opening of the tray that has been moved to the tray, and the disk-shaped recording medium formed so as to be continuous with the opening of the tray and having a different format from the mounted disk-shaped recording medium. A notch for retracting the pickup used for the recording medium.

Therefore, such disc type recording and / or
Alternatively, according to the reproducing device, a disc type recording and / or reproducing device capable of compatiblely recording or reproducing a plurality of types of disc-shaped recording media having different formats is provided by selectively using a plurality of pickups. It Moreover, the unused pickup is now retracted in the notch that is continuous with the opening of the tray,
This makes it possible to construct a retractable space for the pickup reasonably and compactly.

Another main invention of the present application is a disc type recording and / or reproducing apparatus in which recording and / or reproducing is performed by a pickup while rotating the disc-shaped recording medium, and the disc-shaped recording medium is set to a pull-out position. A tray for moving between the recording and reproducing positions is provided, and the tray is formed with a concave portion for accommodating the disc-shaped recording medium.

Therefore, such disc type recording and / or
Alternatively, according to the reproducing apparatus, it becomes possible to store the disc-shaped recording medium in the recess provided in the tray that moves the disc-shaped recording medium between the pull-out position and the recording / reproducing position.

Another main invention included in the present application is a disk type recording and / or reproducing apparatus in which recording and / or reproduction is performed by a pickup while rotating the disk-shaped recording medium, and the disk-shaped recording medium is pulled out. It is provided with a tray which is moved between a position and a recording / reproducing position, and a guide means for correctly positioning the disc-shaped recording medium placed on the tray.

Therefore, according to such a recording and / or reproducing apparatus, the disc-shaped recording medium placed on the tray can be correctly positioned by the guiding means, and the disc can be properly loaded by the tray. It will be possible.

Another main invention included in the present application is to move the disc-shaped recording medium by the tray from the first position for attaching and detaching the disc-shaped recording medium to the second position for recording and / or reproducing by the head. In the disc type recording and / or reproducing apparatus according to the present invention, a notch is provided on the front side of the mounting position of the tray for placing the disc-shaped recording medium, and the disc-shaped recording medium can be taken out by inserting a finger into the notch. It is a thing.

Therefore, such disc type recording and / or
Alternatively, according to the reproducing apparatus, it is possible to take out the disc-shaped recording medium by inserting a finger into the notch provided on the front side of the tray, and the operability of handling the disc-shaped recording medium is improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a disk type recording / reproducing device.

FIG. 2 is a perspective view showing a state where the tray is pulled out.

FIG. 3 is a plan view of a base unit.

FIG. 4 is a side view of the base unit.

FIG. 5 is a front view of a base unit.

FIG. 6 is a perspective view of a base unit.

FIG. 7 is a plan view of a base unit in which a DVR cartridge is mounted.

FIG. 8 is a side view of the same.

FIG. 9 is a perspective view of the same.

FIG. 10 is a plan view of a base unit on which a bare disk is mounted.

FIG. 11 is a side view of the same.

FIG. 12 is a perspective view of the same.

FIG. 13 is an external perspective view showing the structure of the tray.

FIG. 14 is a plan view of the same.

FIG. 15 is a bottom view of the same.

FIG. 16 is an external perspective view showing the retracting operation of the pickup in the notch of the tray.

FIG. 17 is a perspective view of a main part showing the retracting operation of the pickup with respect to the front notch.

FIG. 18 is a perspective view of a main part of the tray that has been pulled out.

FIG. 19 is a bottom view of the cartridge.

FIG. 20 is a perspective view of the relevant part.

FIG. 21 is a perspective view of an essential part seen from the same angle.

FIG. 22 is a perspective view of a main part of a portion on the opposite side.

FIG. 23 is an exploded perspective view of the tray showing the mounting of the bare disk guide.

FIG. 24 is an enlarged perspective view of a bare disk guide.

FIG. 25 is an enlarged perspective view of the bare disk guide in an inverted state.

FIG. 26 is a perspective view of relevant parts showing a mounting state of the bare disk guide on the tray.

FIG. 27 is a perspective view of the tray as viewed from below.

FIG. 28 is an external perspective view of the bare disk guide in a state of being retracted into the tray.

FIG. 29 is an external perspective view of the bare disk guide in a state of being immersed in the tray as viewed from the lower side of the tray.

FIG. 30 is a vertical sectional view showing the mounting of the bare disk guide.

FIG. 31 is a vertical sectional view showing the mounting of the bare disk guide.

FIG. 32 is a vertical cross-sectional view showing a state where the bare disk guide is immersed.

FIG. 33 is a vertical cross-sectional view showing a state where the bare disk guide is immersed.

[Explanation of symbols]

10 ... Outer casing, 11 ... Front panel, 12 ... Horizontal opening, 13 ... Tray, 14 ... Recess, 15 ... Opening,
16 ... U-shaped notch, 17 ... Semi-circular notch, 18
... Drive unit, 19 ... Motor, 20 ... Step, 2
1 ... rack, 25 ... base unit, 26 ... bracket, 27 ... turntable, 31 ... DVD pickup, 32 ... DVR pickup, 33 ...
Guide rod, 34 ... feed screw, 35 ... stepping motor, 37, 38 ... guide rod, 39 ... feed screw, 40 ... stepping motor, 41 ... nut,
45: Support rod, 46: Support arm, 4
7, 48 ... Opening, 51 ... DVR cartridge, 5
2 ... Bare disc, 53 ... Opening, 54 ... Shutter, 55, 56 ... Protrusions for preventing incorrect mounting, 57, 58.
Recesses, 60 ... Bare disc guides, 61 ... Elastic legs,
62 ... Claws, 63 ... Recesses, 64 ... Mounting holes, 65 ...
Arms, 66, pins, 67, compression coil springs, 6
8 ... Inclined surface (guide surface), 70 ... Cartridge detection plate, 75 ... Recess for inserting fingers

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[Procedure amendment]

[Submission date] October 23, 2001 (2001.10.
23)

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   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Manabu Obata             Sony 6-735 Kitashinagawa, Shinagawa-ku, Tokyo             Within the corporation (72) Inventor Ryuji Kusumi             Sony 6-735 Kitashinagawa, Shinagawa-ku, Tokyo             Within the corporation F term (reference) 5D046 AA20 CB16 EA01 EA08 EA11                       EA15 FA04 HA08

Claims (14)

[Claims] 1. A disc-type recording and / or reproducing apparatus in which recording and / or reproduction is performed by a pickup while rotating the disc-shaped recording medium, each corresponding to a plurality of types of disc-shaped recording media having different formats. A plurality of pickups provided, a tray for moving the disk-shaped recording medium between a pull-out position and a recording / reproducing position, and a disk-shaped recording medium that rotates by entering into the opening of the tray moved to the recording / reproducing position. A disc type recording device comprising: a rotation driving unit; and a notch formed so as to be continuous with the opening of the tray and for retracting a pickup used for a disc-shaped recording medium having a different format from the mounted disc-shaped recording medium. And / or a playback device. 2. A pair of cutouts provided with two pickups, which are formed at a position approximately 180 degrees apart in the circumferential direction of the rotary drive unit with respect to an opening for receiving the rotary drive unit of the tray, and the two of the two. The disc type recording and / or reproducing apparatus according to claim 1, wherein the pickups are housed respectively. 3. The pair of cuts are arranged along the moving direction of the tray at positions separated by approximately 180 degrees in the circumferential direction of the rotary drive unit. Disc type recording and / or reproducing apparatus. 4. The cartridge type disk-shaped recording medium mounted on the tray is taken out through a notch formed on the side of the tray where the tray is pulled out, out of the pair of notches. 3. The disc type recording and / or reproducing apparatus according to item 3. 5. An optical pickup comprising two optical pickups, one of which is a DV for a laser beam of 650 nm.
In addition to reading and writing to D, reading and writing to CD with 780 nm laser light, the other optical pickup performs reading and writing to DVR with 405 nm laser light, and DVD or CD consisting of a bare disk is recorded and reproduced by the tray. When it is pulled into the device, the DVR
When the other optical pickup for use retracts to the notch on the rear side of the tray and the cartridge type DVR is pulled to the recording / reproducing position by the tray, the DVD and CD
4. The disc type recording and / or reproducing apparatus according to claim 3, wherein one of the optical pickups is retracted to a notch on the front side of the tray. 6. A disc-type recording and / or reproducing apparatus in which recording and / or reproducing is performed by a pickup while rotating the disc-shaped recording medium, wherein the disc-shaped recording medium is between a pull-out position and a recording / reproducing position. 2. A disc-type recording and / or reproducing apparatus, comprising: a tray for moving the disc-shaped recording medium; and a recess for accommodating the disc-shaped recording medium. 7. The disc type recording and / or reproducing apparatus according to claim 6, wherein the disc type recording medium is a cartridge type disc type recording medium, and the cartridge is housed in the recess. . 8. An erroneous mounting preventing protrusion is provided on the outer peripheral side of the recess of the tray, and a recess is formed in the outer peripheral portion of the cartridge for receiving the erroneous mounting preventing protrusion when properly mounted. The disc-type recording and / or reproducing apparatus according to claim 7, wherein 9. A disc-type recording and / or reproducing apparatus in which recording and / or reproducing is performed by a pickup while rotating the disc-shaped recording medium, wherein the disc-shaped recording medium is between a pull-out position and a recording / reproducing position. 2. A disc-type recording and / or reproducing apparatus, comprising: a tray that is moved by means of; and guide means that correctly positions a disc-shaped recording medium placed on the tray. 10. The guide means is attached to the tray so as to be retractable and retractable, and comprises a plurality of guide members urged by a spring in a projecting direction so as to guide an outer peripheral portion of a bare disk type disk-shaped recording medium. The elastic restoring force of the spring is set so as to project and support the bare disc when the bare disc is placed on the two guide portions, and the bare disc in the inclined state is disposed on the guide member. The disc-type recording and / or reproducing apparatus according to claim 9, wherein the disc-type recording and / or reproducing apparatus is guided to a correct position by. 11. An elastic restoring force of the spring is set such that when the cartridge type disc-shaped recording medium is placed on the tray, the weight of the cartridge causes the guide member to be submerged in the tray. The disc-type recording and / or reproducing apparatus according to claim 10. 12. When the cartridge is placed on the tray so that a side end of the cartridge slides on an upper surface of the tray, a guide surface provided on the guide member guides the cartridge to a correct position. 11. The disc type recording and / or reproducing apparatus according to claim 10, wherein 13. A disc-type recording and / or recording device, wherein the disc-shaped recording medium is moved by a tray from a first position where the disc-shaped recording medium is attached and detached to a second position where recording and / or reproduction is performed by a head. In the reproducing apparatus, a notch is provided on the front side of the mounting position of the tray on which the disc-shaped recording medium is placed, and the disc-shaped recording medium can be taken out by inserting a finger into the notch. Disc type recording and / or reproducing device. 14. The disk-type recording device according to claim 13, wherein a cartridge having a concave portion to be picked by a finger on the front side can be mounted at a mounting position for mounting the disk-shaped recording medium. And / or playback device.