JPH087980B2 - Disk playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Industrial field of application) The present invention can selectively reproduce a plurality of types of discs having different diameters, such as a video disc and a compact disc. , Improvement of compatible type disc reproducing apparatus.

(Prior Art) As is well known, a so-called compatible type capable of selectively mounting a plurality of discs having different diameters, such as a laser video disc having a diameter of 30 cm and a compact disc having a diameter of 12 cm, for reproduction. Disc playback devices have become popular.

By the way, the compatible type disc reproducing apparatus as described above is still in the stage of development, and for example, further multifunctionalization and miniaturization by organically configuring each part, and handling for users. There is room for development in various respects, such as facilitating

(Problems to be Solved by the Invention) As described above, further development of a compatible type disc reproducing apparatus is strongly demanded so as to sufficiently meet the needs of users.

Therefore, the present invention has been made based on the above circumstances, and in a reproducing device for selectively reproducing a plurality of types of discs having different diameters, it is possible to mount a plurality of discs having a small diameter and selectively reproduce the discs. In addition, a disc with a small diameter can be attached / detached while the tray on which the disc is placed is housed in the reproducing device. For example, another disc can be exchanged in the reproducing state of one disc, which is effective for multi-functionality. It is an object of the present invention to provide an extremely good disc reproducing apparatus which is designed to be promoted.

[Structure of the Invention] (Means for Solving the Problems) That is, in the disk reproducing apparatus according to the present invention, first, a first tray that can be inserted into and removed from the main body of the device,
A first disc mounting portion that is rotatably supported by the first tray, and a first disc mounting portion that is arranged around the center of the first disc mounting portion and is mounted on the first disc mounting portion. A disk having a diameter smaller than that of the disk to be mounted is supported so as to be movable between a first position overlapping the first disk mounting portion and a second position protruding to the outside of the first tray. And a plurality of second disk mounting portions.

In addition, by loading a disk placed on the first disk loading section and rotating the first disk rotation driving section and the first disk loading section that rotate and drive the second disk, the second disk loading section is rotated. A disk placed on the disk placing section is selectively loaded, and is movable on a line connecting the second disk rotation driving section that rotationally drives the disk and the first and second disk rotation driving sections. And a pickup for reproducing the disc loaded in the first or second disc rotation drive unit.

A second tray, which is provided so as to be able to move in and out of the device body, and in which the second disc mounting portion of the first tray accommodated in the device body is engaged, and the second tray. And a drive mechanism for moving the tray of the second tray into and out of the device body, and when the first tray is housed in the device body, the drive mechanism interlocks with the operation of moving the second tray in and out of the device body. Then, only the second disk mounting portion is moved to the outside of the device body.

(Operation) According to the configuration as described above, first, by rotating the first disc mounting portion, it is possible to selectively reproduce the discs mounted on the plurality of second disc mounting portions. Therefore, it is possible to achieve multi-functionality such as sequentially reproducing a plurality of discs successively.

In addition, since the first tray is accommodated in the device body, only the second disc mounting portion is moved to the outside of the device body so that the disc can be attached / detached.
The attachment / detachment work to / from a disc having a small diameter can be facilitated and, for example, a plurality of discs can be sequentially and continuously reproduced while being exchanged, and the above-described multi-functionality can be effectively promoted.

(Embodiment) Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. In FIG. 2, reference numeral 11 is a disc reproducing device, and a tray 12 which can be freely moved in and out in a horizontal direction, that is, in the directions of arrows A and B in the figure, through a disc loading opening 11b formed in a front panel 11a on the front surface thereof. Have

The tray 12 is capable of mounting a video disc, a compact disc, or the like, which will be described later, on its upper surface in the figure, and is mounted on carriers 13, 13 driven by a loading drive mechanism (not shown). And the tray 12 is
As shown in FIG. 2, when the user manually pushes the disc reproducing device 11 in the direction of the arrow B while the disc reproducing device 11 is projected outward, the loading drive mechanism is driven to automatically move in the direction of the arrow B. It is retracted and housed in the device 11 as shown in FIG.

In this case, the tray 12 is pulled into the device 11 in the direction of the arrow B and is then lowered slightly so as to be in a position where the video disc, the compact disc or the like can be reproduced.

Further, as shown in FIG. 3, the tray 12 is accommodated inside the disc reproducing apparatus 11, and by operating a disc loading operator (not shown), the loading drive mechanism operates. After being automatically raised, it is horizontally moved in the direction of arrow A to the position shown in FIG.

Here, in the disc reproducing apparatus 11, the fourth
As shown in the figure, a main chassis 14 formed by bending a metal plate into a substantially U shape is installed. Then, the tray 12 is located between the both side plates 14a and 14b of the main chassis 14 in a state of being accommodated in the disc reproducing device 11.

Further, the tray 12 has a circular through hole 12 in the center thereof, which has a diameter slightly larger than that of a video disc having a diameter of 30 cm.
a is formed. A rotary tray 15 is supported on the tray 12 so as to close the through hole 12a. The rotary tray 15 serves as a first disk mounting portion for mounting the video disk, and is supported on the tray 12 so as to be rotatable in the directions of arrows C and D in FIG.

Further, the rotary tray 15 is formed with a linear cutout portion 15a extending from the central portion to the peripheral portion, and has a diameter of 12 cm at positions facing each other with the central portion interposed therebetween.
A pair of circular through holes 15b, 15c having a diameter slightly larger than that of the compact disc are formed.

The rotary tray 15 has a pair of through holes 15b,
Sub trays 16 and 17 are respectively supported so as to close 15c. These sub trays 16 and 17 serve as a second disc mounting portion on which the compact disc is mounted. Further, each of the sub trays 16 and 17 is formed with linear notches 16a and 17a extending from the central portion to the peripheral portion thereof.

Here, when the tray 12 is completely housed in the disc reproducing device 11 in the substantially central portion of the bottom surface of the main chassis 14, a video disc is placed at a position corresponding to the lower side of the central portion of the rotary tray 15. A disk table 18 for rotating is installed rotatably. In addition, the above main chassis 14
In order to place the compact disc at the position corresponding to the lower side of the central portion of the cutout portion 15a formed in the rotary tray 15 when the tray 12 is completely accommodated in the disc reproducing device 11. The disk table 19 of is rotatably installed.

The disc tables 18 and 19 are rotationally driven by the action of a disc motor (not shown).

Further, in the main chassis 14, the tray 12 is completely accommodated in the disc reproducing apparatus 11, and an optical pickup 20 is movably provided below the notch 15a formed in the rotary tray 15 along the notch 15a. Is installed.

In addition, the main chassis 14 has its both side plates 14a, 14
A clamper support plate 21 is installed spanning between b.
The clamper support plate 21 has the disc tables 18, 1
Disc clampers (not shown), which are selectively brought into pressure contact with the disc tables 18 and 19, are rotatably supported at positions corresponding to 9, respectively.

Therefore, as shown in FIG. 5, the tray 12 is pulled out to the outside of the apparatus 11, the video disk (indicated by the chain double-dashed line in the figure) 22 is placed on the rotary tray 15, and the tray 12 is moved to the disk reproducing apparatus. When housed in 11, the video disc 22 is sandwiched between the disc table 18 and the disc clamper via the notch 15a of the rotary tray 15, and is rotated by the action of the disc motor, so that the optical pickup 20 is notched. Department
The video disk 22 is reproduced via 15a.

In the playback state of this video disc 22,
The disc table 19 on which the compact disc is placed, the disc motor, and the like are automatically retracted to a position outside the movement path of the optical pickup 20 as shown by an arrow E in FIG. The height of the disc is lowered so as not to interfere with the reproduction of the video disc 22.

Next, as shown in FIG. 6, continuous tooth portions 15d are formed on the peripheral portion of the rotary tray 15. Further, guide gears 23 to 25, which mesh with the tooth portions 15d of the rotary tray 15 and rotatably support the rotary tray 15 on the tray 12, are rotatably supported on the tray 12. .

That is, these guide gears 23 to 25 have
Are arranged at equal intervals with respect to the peripheral edge of. Further, the guide gears 23 to 25 are mounted on the tray as shown in FIG.
It is rotatably supported by a rotary shaft 12b integrally formed with 12, and flanges 23a to 25a are formed at the lower end in the figure. The guide gears 23 to 25 are the teeth of the rotary tray 15.
15d is meshed with the collar portions 23a to 25a of which the peripheral edge portion of the rotary tray 15 is engaged, so that the rotary tray 15d.
15 is rotatably supported.

Further, as shown in FIG. 6 again, the tray 12 has
A gear 26 that meshes with the tooth portion 15d of the rotary tray 15 is supported, and the rotary force of the motor 28 is transmitted to the gear 26 via the foam gear 27, whereby the rotary tray 15 rotates in a predetermined direction. It is designed to be done.

On the other hand, the sub trays 16 and 17 have extension portions 16b and 17b extending from the portion on which the compact disc is placed. The sub trays 16 and 17 are provided with the extension portions 16b and 1
7b, as shown in FIG. 7 (b), is supported by the tray 12 by being rotatably supported by a rotating shaft 12c formed integrally with the tray 12.

The sub trays 16 and 17 are biased in the direction toward the inner circumference of the rotary tray 15 by the coil springs 16c and 17c attached to the extending portions 16b and 17b and the tray 12, respectively. However, the spring 1 of the subtray 16,17
The rotation by 6c and 17c is performed up to the position shown in FIG. 6 by the action of a stopper (not shown) provided on the rotary tray 15.

Therefore, it is assumed that the tray 12 is pulled out of the device 11, the compact disc is placed on the sub-tray 16, and the tray 12 is housed in the disc reproducing device 11. Then, in a state where the tray 12 is not lowered in the disc reproducing device 11, as shown in FIG.
Is separated from.

Therefore, in the state shown in FIG. 9A, the rotary tray 15 housed in the disc reproducing apparatus 11 is driven by the motor 28 so that the sub-tray 16 is moved to the disc table 19 as shown in FIG. 9B. Rotate so that it is located above. Thereafter, as shown in FIG. 8 (b), the tray 12 is lowered so that the compact disc 29 is sandwiched between the disc table 19 and the disc clamper 30 via the notch 16a of the sub-tray 16. The optical pickup 20 is rotated by the action of the disc motor 31, and the compact disc 29 is reproduced through the notch 16a.

Further, when the rotary tray 15 is in the state shown in FIG. 9 (b),
It is assumed that the tray 12 is pulled out of the device 11, the compact disc 29 is placed on the sub-tray 17, and the tray 12 is housed in the disc reproducing device 11. Then, while the tray 12 is not lowered in the disc reproducing device 11,
As shown in FIG. 9 (c), by driving 28, the sub tray
The carousel so that 17 is located on the disc table 19.
Rotate 15.

After that, by lowering the tray 12, the compact disc 29 is sandwiched between the disc table 19 and the disc clamper 30 via the cutout portion 17a of the sub-tray 17, and rotated by the action of the disc motor 31, so that the optical disc is rotated. The pickup 20 plays the compact disc 29 through the notch 17a. Therefore, if the compact discs 29 are placed on the two sub-trays 16 and 17, respectively, the two compact discs 29 can be continuously reproduced.

Next, as shown in FIG. 4 again, an exchange tray 32 is installed on the front right side of the front end portion of the tray 12 housed in the main chassis 14. The exchange tray 32 is provided with guide portions 11c, 11d provided on the main chassis 14 through a disc insertion opening (not shown) formed on the front panel 11a of the disc reproducing device 11 as shown in FIG. 1 (a). Is supported slidably in the directions of arrows F and G in the figure. The exchange tray 32 projects outward from the disc reproducing device 11 in the state of being slid in the direction of arrow F in FIG. 1A, and is accommodated in the disc reproducing device 11 in the state of being slid in the direction of arrow G. To be done.

Also, one side surface of the exchange tray 32 is shown in FIG.
As shown in, the tooth portion 32a is formed. The tooth portion 32a includes gears 33, 3 supported by the guide portion 11d.
The rotational force of the motor 35 is transmitted via 4. Therefore, by rotating the motor 35 in the forward or reverse direction, the replacement tray 32 is moved to the arrow F,
Can be slid in G direction.

Here, at the front end portion of the exchange tray 32, a guide portion 32b that is curved along the outer periphery of the compact disc 29 is formed. Furthermore, in the approximate center of the exchange tray 32,
A substantially L-shaped recess 32c is formed.

The recess 32c of the exchange tray 32 is, for example, the tenth
As shown in the figure, the pin 16d formed on the sub-tray 16 is loosely fitted while the compact disc 29 mounted on the sub-tray 17 is being reproduced. In this case, as shown in FIG. 11A, when the tray 12 is raised in the disc reproducing apparatus 11, the pin 16d of the sub-tray 16 is separated from the recess 32c of the exchange tray 32, and the rotary tray 15 is It is designed to be freely rotated. Then, as shown in FIG. 11B, the pin 16d of the sub-tray 16 is loosely fitted in the recess 32c of the exchange tray 32 while the tray 12 is lowered in the disc reproducing device 11.

Further, the recess 32c of the exchange tray 32, contrary to the above,
The pin 17d formed on the sub-tray 17 while the compact disc 29 placed on the sub-tray 16 is being reproduced.
(See FIG. 6) is loosely fitted.

For this reason, the pin 16d of the subtray 16 is now replaced by the replacement tray 3
It is assumed that the motor 35 is driven and the exchange tray 32 is slid in the direction of arrow F as shown in FIG. 12 while being loosely fitted in the second recess 32c. Then, the exchange tray 32
The recess 32c of the sub-tray 16 presses the pin 16d of the sub-tray 16 so that the sub-tray 16 resists the biasing force of the spring 16c.
(2) It is rotated clockwise in the figure so that it is projected to the outside of the disc reproducing device 11 together with the exchange tray 32. Therefore, the compact disc 29 can be attached / detached to / from the sub-tray 16.

Further, as shown in FIG. 12, it is assumed that the motor 35 is driven and the replacement tray 32 is slid in the direction of arrow G while the replacement tray 32 is projected outward. Then, as the replacement tray 32 slides in the direction of arrow G, the sub-tray 16 is returned to its original position by the biasing force of the spring 16c.

Here, the above-described attachment / detachment operation of the compact disc 29 with respect to the sub-tray 16 is similarly performed with respect to the sub-tray 17. That is, the rotary tray 15 is rotated until the pin 17d of the sub-tray 17 reaches the position corresponding to the recess 32c of the exchange tray 32, and the tray 12 is lowered at that position.
The pin 17d of the sub-tray 17 is loosely fitted in the recess 32c of the exchange tray 32. Therefore, when the replacement tray 32 is projected outward, the sub-tray 17 is projected outward accordingly, and the compact disc 29 can be attached / detached to / from the sub-tray 17.

Therefore, when the compact disc 29 placed on one of the sub-tray 16 or 17 is in the playback state, the other sub-tray
The compact disc 29 can be replaced with respect to 17 or 16.

Therefore, according to the configuration of the above embodiment, first, the two sub-trays 16 and 17 on which the compact disc 29 is placed are arranged along the circumferential side of the central portion of the rotary tray 15 on which the video disc 22 is placed. And a compact disc 29 placed on the two sub-tray 16 and 17 by rotating the rotary tray 15 is composed of a disc table 19, a disc clamper 30 and a disc motor 31 for rotating and driving the compact disc 29. The disc rotation drive unit is selectively loaded so that the disc can be reproduced.

Therefore, as for the compact disc 29, it is possible to continuously and automatically reproduce the two compact discs 29, and it is possible to achieve the multi-functionality which is not found in the conventional compatible type disc reproducing device. Further, since the sub trays 16 and 17 are arranged along the peripheral side of the central portion of the rotary tray 15, the occupied space is small and the miniaturization can be effectively promoted.

Next, the rotary tray 15 is rotatably supported by a plurality of guide gears 23 to 25 whose peripheral portions are rotatably supported by the tray 12, and the tray 12 is housed in the disc reproducing device 11. Since the disc table 18 is positioned in the center of the rotary tray 15 when the disc is rotated, the configuration is organic and simple without waste, and it is possible to effectively promote the realization of the multi-functionality described above. it can.

Further, since the two sub trays 16 and 17 are provided at positions facing each other with the central portion of the rotary tray 15 interposed therebetween, the compact disc 29 placed on one of the sub trays 16 or 17 is the disc rotation drive unit described above. In the state in which the compact disc 29 placed in the other sub-tray 17 or 16 is inevitably located at a position corresponding to the exchange tray 32, both the sub-tray 16, while exchanging the compact disc 29, It becomes possible to successively and successively reproduce the compact discs 29 mounted on the media 17.

Furthermore, even if the replacement tray 32 is provided and the tray 12 is not projected to the outside of the disc reproducing device 11, the sub-tray 16, 17
Since the compact discs 29 mounted on the disc can be selectively exchanged, continuous reproduction of the plurality of compact discs 29 described above can be realized with a simple configuration. Further, when performing the mounting / removing operation of the compact disc 29, it is not necessary to project the entire tray 12 to the outside of the disc reproducing device 11, so that the user can easily handle it.

The present invention is not limited to the above-described embodiment, and can be variously modified and implemented without departing from the scope of the invention.

[Effects of the Invention] Therefore, according to the present invention as described in detail above,
In a playback device that selectively plays back multiple types of discs with different diameters, a plurality of discs with small diameters should be mounted so that they can be played sequentially and selectively. Provided is a very good disc reproducing apparatus that allows a disc having a small diameter to be attached and detached while being housed, and for example, another disc can be exchanged in a reproducing state of one disc to effectively promote multifunctionality. can do.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a disc reproducing apparatus according to the present invention, FIGS. 2 and 3 are perspective views for explaining loading of the disc reproducing apparatus, and FIG. 4 is the disc reproducing apparatus. FIG. 5 is a perspective view schematically showing the inside of the apparatus, FIG. 5 is a plan view for explaining the operation of retracting the disk rotation drive unit for a compact disk when reproducing a video disk in the disk reproducing apparatus, FIGS. FIG. 8 is a plan view and a side sectional view for explaining a rotary tray and a sub-tray of the disc reproducing apparatus, respectively, and FIG. 8 is a side sectional view for explaining a compact disc clamping operation of the disc reproducing apparatus. Is a plan view for explaining a reproducing operation of a compact disc in the disc reproducing apparatus, and FIG. 10 is a plan view for explaining a replacement tray of the disc reproducing apparatus. Rear view, FIG. 11 is a side sectional view showing the relationship between the exchange tray and sub tray of the disc player, the
FIG. 12 is a plan view for explaining the operation of the exchange tray. 11 …… Disc player, 12 …… Tray, 13 …… Carrier, 14 …… Main chassis, 15 …… Rotating tray, 16,17
...... Sub tray, 18, 19 ...... Disc table, 20 ......
Optical pickup, 21 …… Clamper support plate, 22 …… Video disc, 23-25 …… Guide gear, 26 …… Gear, 27
...... Worm gear, 28 ...... Motor, 29 ...... Compact disc, 30 ...... Disc clamper, 31 ...... Disc motor, 32 ...... Exchange tray, 33, 34 ...... Gear, 35 ...... Motor.

Claims (1)

[Claims] Claim: What is claimed is: 1. A first tray which is provided in a device main body so as to be freely inserted and removed, and a first tray which is rotatably supported by the first tray.
And a disc having a diameter smaller than that of the disc placed on the first disc placing part and around the center of the first disc placing part. A plurality of second disk mounting portions movably supported between a first position overlapping the first disk mounting portion and a second position protruding to the outside of the first tray; A first disc rotation driving unit that is loaded with the disc mounted on a first disc mounting unit and rotationally drives the disc; and the second disc by rotating the first disc mounting unit. The disk mounted on the mounting section is selectively loaded so that the disk can be moved on a line connecting the first and second disk rotation driving sections with a second disk rotation driving section that rotationally drives the disk. The first or second disk rotation drive provided The pickup for reproducing the disc loaded in the device is engaged with the second disc mounting portion of the first tray that is provided in the device main body and is housed in the device main body in the inserted state. A second tray and a drive mechanism for moving the second tray into and out of the device body, and with the first tray housed in the device body, the drive mechanism Only the second disk mounting portion is configured to be moved into and out of the device body in association with the operation of the second tray moving in and out of the device body. Disc playback device.