JPS63266681A - Disk reproducing device - Google Patents

Abstract

PURPOSE:To contrive multifunctionalization capable of changing another disk under the reproducing state of one disk by providing a disk inserting hole capable of loading/unloading a disk to/from 3rd or 2nd disk mounting part positioned facing 2nd or 3rd disk rotating drive part and holding a center part of a 1st disk mounting part between them. CONSTITUTION:An exchange tray 32 is set up in front of and on the right side of the front edge of a tray 12 housed in a main chassis 14. This exchange tray 32 is freely slidably supported in the direction of an arrow F or G by guide parts 11c and 11d provided in the chassis 14 via the disk inserting hole formed in the front panel of the disk reproducing device 11 concerned. Then, the exchange tray 32 is extruded from the disk reproducing device 11 under the state of sliding out in the direction of the arrow F, whereas it is housed in the disk reproducing device 11 under the state of sliding out in the direction of the arrow G. By this method, a disk can be loaded or unloaded to or from the 3rd or 2nd disk mounting part under the reproducing state of a disk mounted on the 2nd or 3rd disk mounting part, thus promoting effectively the multifunctionalization.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides a method for selectively reproducing a plurality of types of discs having different diameters, such as a video disc and a compact disc, for example. This invention relates to improvements in compatible type disc playback devices.

(Prior Art) As is well known, for example, a laser video disc with a diameter of 30 cm and a compact disc with a diameter of 12 cm,
2. Description of the Related Art So-called compatible type disc playback devices that can selectively load and play back a plurality of types of discs with different diameters have become widespread.

By the way, the above-mentioned compatible disc playback device is still in the development stage, and efforts are being made to make it even more multi-functional and to make it more compact by organically configuring each part, as well as to make it easier for the user to handle it. There is still room for development in various aspects, such as making it easier.

(Problems to be Solved by the Invention) As described above, in a compatible type disc playback device, in order to fully meet the needs of the user,
Furthermore, further development is strongly desired.

Therefore, the present invention has been made based on the above-mentioned circumstances, and it is possible to install a plurality of small-diameter disks and selectively play them sequentially in a playback device that selectively plays back multiple types of disks with different diameters. In addition, it is an object of the present invention to provide an extremely good disc playback device that can effectively promote multi-functionality by allowing the reproduction of one disc to be replaced with another disc.

[Structure of the Invention] (Means for Solving the Problems) That is, the disc playback device according to the present invention has the following features:
A first disc mounting section, and this first disc mounting section I! !
second and third disk rests, which are arranged at positions facing each other with the center of the disk in between, and on which disks having a smaller diameter than the disks placed on the first disk rest are placed; and a tray that is rotated around the center of the first disk mounting section.

Further, a first disk rotation drive section, in which a disk placed on the first disk mounting section is loaded and rotates the disk, and a second or third disk mounting section that rotates the tray. a second disk rotation drive section on which a disk placed on the disk is selectively loaded and rotationally drives the disk; and a second disk rotation drive section that is movable on a line connecting the first and second disk rotation drive sections; and a pickup for reproducing a disc selectively loaded in the first or second disc rotation drive section.

Then, a second or third disc is placed at a position facing the second disc rotation drive unit across the center of the first disc mounting unit.
A disk insertion opening is provided that allows the disk to be attached to and removed from the third or second disk placement portion in a state where the disk placed on the second disk placement portion is loaded into the second disk rotation drive portion. This is how it was done.

(Function) According to the above configuration, the tray provided with the second and third disc mounting parts, which are arranged at positions facing each other across the center of the first disc mounting part, can be rotated. Since the discs placed on the second and third disc mounting parts are selectively loaded into the second disc rotation drive part for playback, multi-functionality can be achieved. It is possible.

Further, a disk insertion opening is provided at a position facing the second disk rotation drive unit with the center of the first disk placement unit in between, which allows the disk to be attached to and removed from the second or third disk placement unit. Since the disc is mounted on the second or third disc rest, it is possible to attach or remove the disc to or from the third or second disc rest while the disc is being played back. Functionalization can be effectively promoted.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings. In FIG. 2, reference numeral 11 denotes a disc playback device, which has a tray 12 that can be moved in and out horizontally, 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 side of the device. have.

This tray 12 can place a video disc, compact disc, etc., which will be described later, on its upper surface in the figure, and is mounted on a carrier 13.13 driven by a loading drive mechanism (not shown).

As shown in FIG. 2, the tray 12 is a disc recycling bag! ! 11, when it is manually pushed in the direction of arrow B by the user.

The above-mentioned loading drive mechanism is driven and automatically moves to arrow B.
direction, and is 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 arrow B and then lowered slightly to a position where the video disc, compact disc, etc. can be played.

Further, when the tray 12 is housed inside the disc playback device 11 as shown in FIG. 3, by operating a disc loading operator (not shown), the tray 12 is operated by the action of the loading drive mechanism. After being automatically raised, it is horizontally moved in the six directions of arrows to the position shown in FIG. 2, and is projected to the outside of the mount 11.

Here, the above disc playback [in 12t11,
As shown in FIG. 4, a main chassis 14 formed by bending a metal plate into a substantially U-shape is installed.

Then, the tray 12 is housed in the disc playback device 11, and the tray 12 is inserted into the side plates 14a of the main chassis 14.
, 14b.

In addition, the tray 12 has a diameter of 30 cm at its center.
A circular through hole 12a having a diameter slightly larger than that of the video disc is formed. A rotating tray 15 is supported on the tray 12 so as to close the through hole 12a. This rotating tray 15 serves as a first disc mounting section on which the video disc is mounted.
It is rotatably supported relative to the tray 12 in the directions of arrows C and D in FIG.

Further, this rotary tray 15 has linear notches 15a extending from its center to its periphery, and has straight notches 15a at positions facing each other across the center. !
A pair of circular holes 15b having a diameter slightly larger than that of a 12 cm compact disc.

15c is formed.

The rotary tray 15 has a pair of through holes 15.
b, subtray 16.17 to block 15c.
are supported respectively. These sub trays 16゜1
7 is a second plate on which the above-mentioned compact disc is placed, respectively.
This is the disc mounting section for the disc. Further, each sub-tray 16, 17 is formed with a linear notch 16a, 17a extending from its center to its periphery.

Here, a video disc is placed at a position approximately at the center of the bottom surface of the main chassis 14, which corresponds to the lower center of the rotary tray 15 when the tray 12 is completely accommodated in the disc playback device 11. A disk table 18 is rotatably installed for this purpose. Furthermore, when the tray 12 is completely housed in the disc playback device 11, the main chassis 14 has a groove located at a position corresponding to the center and lower side of the notch 15a formed in the rotary tray 15.
A disc table 19 for placing a compact disc is rotatably installed.

The disk tables 18 and 19 are rotationally driven by disk motors (not shown).

Further, an optical pickup 20 is mounted on the main chassis 14 so as to be movable along a cutout 15a formed in the rotary tray 15 under the rotary tray 15 when the tray 12 is completely housed in the disc playback device 11. is installed.

The main chassis 14 also includes side plates 14a thereof.
, 14b, a clamper support plate 21 is installed. Disk clampers (not shown), which are selectively pressed against the disk tables 18 and 19, are rotatably supported on the clamper support plate 21 at positions corresponding to the disk tables 18 and 19, respectively.

Therefore, as shown in FIG.
11, place a video disc (indicated by a two-dot chain line in the figure) 22 on the rotating tray 15, and then remove the tray 1.
2 is housed in the disc playback device 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 to play the optical disc. The pickup 20 now plays the video disc 22 through the notch 15a.

In addition, in the playback state of this video disc 22,
The disk table 19 on which the compact disk is placed, its disk motor, etc. are automatically retracted to a position out of the movement path of the optical pickup 20, as shown by arrow E in FIG.
The height of the video disc 22 is reduced so as not to interfere with playback of the video disc 22.

Next, as shown in FIG. 6, continuous teeth 15d are formed on the peripheral edge of the rotating tray 15.

Further, the tray 12 is provided with teeth 15 of the rotary tray 15.
Guide gears 23 to 25 are rotatably supported in mesh with d to rotatably support the rotating tray 15 on the tray 12.

That is, these guide gears 23 to 25 are arranged at equal intervals around the periphery of the rotating tray 15. Further, as shown in FIG. 7(a), the guide gears 23 to 25 are rotatably supported by a rotating shaft 12b integrally formed with the tray 12, and have a flange portion 23a at the lower end in the figure. ~
25a is formed. And Kai t'll[Il
[23~25kaOOI)-L/I15(1)m'PA
15d 1. :61 and the flange 23a
25a engages with the peripheral edge of the rotating tray 15, so that the rotating tray 15 is rotatably supported.

Also, as shown in FIG. 6 again, the tray 12 includes:
A gear 26 that meshes with the teeth 15d of the rotating tray 15 is supported, and by transmitting the rotational force of a motor 28 to this gear 26 via the worm gear 21, the rotating tray 15 is rotated in a predetermined direction. It is made to be done.

On the other hand, the sub-tray 16, 17 has an extending portion 16b extending from the portion on which the compact disc is placed.

17b. And the above subtray 1G.

11, the extension portions 16b and 17b are as shown in FIG.
), it is supported by the tray 12 by being rotatably supported by a rotation shaft 12c formed integrally with the tray 12.

Further, the sub-tray 16.17 has an extending portion 16b.
, 17b and the tray 12 are each biased in a direction toward the inner periphery of the rotary tray 15 by coiled springs 16c, 17c attached to the tray 12. However, the springs 16c and 17 of the subtray 16.17
The rotation by c is effected by a stopper (not shown) provided on the rotary tray 15 to the position shown in FIG.

For this reason, the tray 12 is connected to the device t! Assume that the tray 12 is housed in the disc playback device 11 by being pulled out from the disc playback device 11 and placing a compact disc on the sub-tray 16, for example. Then, when the tray 12 is not lowered within the disc playback device 11, as shown in FIG. 8(a),
A compact disc 29 placed on the sub-tray 16 is spaced apart from the disc table 19.

Therefore, in the state shown in FIG. 9(a), the disc playback device [
The rotary tray 15 housed in the rotary tray 11 is moved by the motor 28
The subtray 16 is driven as shown in FIG.
Rotate the disk so that it is positioned above the disk table 19. Thereafter, as shown in FIG. 8(b), by lowering the tray 12, the compact disc 29 is passed through the notch 16a of the sub-tray 16 to the disc table 19.
and the disc clamper 30, and
The optical pickup 20 is rotated by the action of the disc motor 31, and the optical pickup 20 picks up the compact disc 2 through the notch 16a.
9 will now be played.

Further, when the rotating tray 15 is in the state shown in FIG. 9(b),
Pull out the tray 12 to the outside of the device W111, place the compact disc 29 on the sub-tray 11, and remove the tray 1.
2 is housed in the disc playback device 11. Then, while the tray 12 is not lowered within the disc playback device 11, the motor 28 is driven to rotate the rotary tray 15 so that the subtray 17 is positioned above the disc table 19, as shown in the jRQ diagram (C). make it move.

Thereafter, by lowering the tray 12, the compact disc 29 is sandwiched between the disc table 19 and the disc clamper 30 via the notch 17a of the sub-tray 17, and is rotated by the action of the disc motor 31, and the compact disc 29 is rotated by the action of the disc motor 31. The pickup 20 now 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, the two compact discs 29 can be played back in succession.

Next, as shown in the fourth factor again, a replacement tray 32 is installed on the front right side of the front end of the tray 12 housed in the main chassis 14. This exchange tray 32 is
10(a) through a disc insertion opening (not shown) formed in the front panel 11a of the disc playback device 11.
), it is supported by guide portions 110 and 11d provided on the main chassis 14 so as to be slidable in the directions of arrows F and G in the figure. The exchange tray 32 protrudes outward from the disc playback device 11 when slid in the direction of arrow F in FIG. be accommodated.

Further, on one side of the exchange tray 32, as shown in FIG.
), toothed portions 32a are formed.

The rotational force of the motor 35 is transmitted to the toothed portion 32a via gears 33 and 34 supported by the guide portion 11d. For this reason, motor 3
5 in the forward or reverse direction, the exchange tray 32 can be slid in the directions of arrows F and G in FIG.

Here, a guide portion 32b curved along the outer periphery of the compact disc 29 is provided at the front end of the exchange tray 32.
is formed. Furthermore, an abbreviated concave portion 32c is formed approximately in the center of the exchange tray 32.

For example, as shown in FIG. 1, the recessed portion 32c of the exchange tray 32 is inserted into the bin 16d formed on the sub-1-ray 16 when the compact disc 29 placed on the sub-tray 17 is being played. It is loosely fitted. In this case, as shown in FIG. 11(a), when the tray 12 is raised inside the disc playback device W111, the sub-tray 16 bin 16d is separated from the recess 32c of the exchange tray 32, and the rotating tray 15 is It is designed to be rotated freely. Then, as shown in FIG. 11(b),
When the tray 12 is lowered within the disc playback device 2211, the bin 16d of the sub-tray 16 is loosely fitted into the recess 32C of the exchange tray 32.

Further, concave portion 32c of the exchange tray 32 is located opposite to the above, where the compact disc 29 placed on the sub-tray 16 is inserted into the recess 32c.
While the cartridge is being reproduced, the bin 17d (see FIG. 6) formed on the sub-tray 17 is loosely fitted.

Therefore, with the bin 16d of the sub-tray 16 now fitted into the recess 320 of the exchange tray 32, the motor 35 is driven to move the exchange tray 32 in the direction of arrow F as shown in FIG. Suppose you slide it to . Then, the concave portion 32c of the exchange tray 32 presses the bin 16d of the sub-tray 16, so that the sub-tray 16 is rotated clockwise in FIG. 11 will be projected outward.

Therefore, the 1111 operation of the compact disc 29 can be performed on the sub-tray 16.

Further, as shown in FIG. 12, assume that the motor 35 is driven to slide the exchange tray 32 in the direction of arrow G with the exchange tray 32 protruding outward.

Then, as the replacement tray 32 is slid in the direction of arrow G, the sub-tray 16 is returned to its original position by the urging force of the spring 16c.

Here, the operation of attaching and detaching the compact disc 29 to and from the sub-tray 16 described above is performed similarly to the sub-tray 17. That is, the bin 17 of the subtray 17
Rotate the rotary tray 15 until d is at a position corresponding to the recess 32C of the exchange tray 32, and at that position, the tray 12
When the sub-tray 17 is lowered, the bins 17d of the sub-tray 17 are loosely fitted into the recesses 32c of the exchange tray 32.

Therefore, when the exchange tray 32 is made to protrude outward, the sub-tray 17 also protrudes outward, and the compact disc 29 can be attached to and removed from the sub-tray 17.

Therefore, while the compact disc 29 placed on one sub-tray 16 or 11 is being played, it is possible to replace the compact disc 29 on the other sub-tray 17 or 16.

Therefore, according to the configuration as in the above embodiment, first,
Two sub-trays 16 and 17 on which the compact disc 29 is placed are installed along the circumference of the center of the rotating tray 15 on which the video disc 22 is placed.
Two sub-trays 16.1 by rotating the 5
A disk table 19.7 for rotating the compact disk 29 placed on the disk table 19.7. It is possible to selectively load and reproduce the disc into a disc rotation drive unit consisting of a disc clamper 30 and a disc motor 31.

Therefore, regarding the compact disc 29, it is possible to automatically play back two compact discs 29 in succession, and it is possible to achieve multi-functionality not seen in conventional compatible type disc playback devices. Further, since the sub-trays 16 and 17 are arranged along the circumference of the center of the rotary tray 15, less space is required, and miniaturization can be effectively promoted.

Next, the rotary tray 15 is rotatably supported at its peripheral edge by a plurality of guide gears 23 to 25 rotatably supported by the tray 12, so that the tray 12 is inserted into the disk regenerated snowmaking 11. Since the disk table 18 is positioned at the center of the rotary tray 15 when accommodated, the structure is organic and simple without waste.
Realization of the above-mentioned multifunctionality can be effectively promoted.

Furthermore, the two sub-trays 16 and 17 are connected to the rotating tray 15.
are located opposite each other across the center of the
When the compact disc 29 placed on one sub-tray 16 or 17 is loaded in the disc rotation drive unit, the other sub-ray 11 or 1G
The compact disc 29 placed on the sub-tray 16 and 17 is necessarily placed in a position corresponding to the exchange tray 32, so while exchanging the compact disc 29, the compact discs 29 placed on both sub-trays 16 and 17 are sequentially and continuously placed. It becomes possible to play.

Furthermore, by providing a replacement tray 32, the sub-tray 1 can
Since the compact discs 29 placed in the tank 6.17 can be selectively replaced, continuous playback of the compact discs 29 in the above-mentioned number of tanks can be realized with a simple configuration. Further, when the compact disc 29 is to be loaded or unloaded, there is no need to project the entire tray 12 outside the disc playback device 111, making it easier for the user to handle the compact disc 29.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and can be implemented with various modifications without departing from the gist thereof.

[Effects of the Invention] Therefore, as detailed above, according to the present invention, in a playback device that selectively plays back multiple types of discs with different diameters, a plurality of discs with small diameters can be loaded and selectively sequentially played back. It is possible to provide an extremely good disc playback device that can play the disc and also allows the player to replace another disc while one disc is being played, effectively promoting multifunctionality.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing one embodiment of a disc playback device according to the present invention, FIGS. 2 and 3 are perspective views for explaining loading of the same disc playback device, and FIG. 4 is a plan view showing an embodiment of the disc playback device according to the present invention. FIG. 5 is a perspective view schematically showing the inside of the device; FIG. 5 is a plan view for explaining the operation of retracting the disc rotation drive unit for compact discs during video disc playback in the same disc playback device; FIGS. The figures are a plan view and a side sectional view, respectively, for explaining the rotary tray and sub-tray of the same disc playback device, FIG. 8 is a side sectional view for explaining the compact disc clamping operation of the same disk playback device, and FIG. 9 10 is a plan view for explaining the compact disc playback operation in the disc playback device, FIG. 10 is a configuration diagram for explaining the replacement tray of the same disc playback device, and FIG. 11 is a replacement tray for the subtray of the same disc playback device. FIG. 12 is a side sectional view showing the relationship with the tray, and a plan view for explaining the operation of the exchange tray. 11... Disc playback device, 12... Tray, 13
...Carrier, 14...Main chassis, 15...
- Rotating l-ray, 16, 17... subtray, 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. Applicant's representative Patent attorney Takehiko Suzue Figure 2 Figure 3 (a) (b) Figure 7 (a) (b) (b) Figure 8
Figure 11

Claims (1)

[Claims] A first disk mounting section and a disk that is arranged opposite to each other across the center of the first disk mounting section and has a smaller diameter than the disk placed on the first disk mounting section. a tray having second and third disk placement parts placed thereon and rotated around the center of the first disk placement part; and a tray placed on the first disk placement part. a first disk rotation drive section loaded with the disk loaded with the disk and rotationally driving the disk; and a first disk rotation drive section that rotates the disk loaded with the disk; and a disk mounted on the second or third disk mounting section by rotating the tray. a second disk rotation drive section that is loaded into the disk drive section and rotates the disk; and the first or second disk rotation drive section that is movable on a line connecting the first and second disk rotation drive sections. a pickup for playing back the disc selectively loaded in the disc;
When the disk mounted on the second or third disk mounting section, which is provided at a position facing the disk rotation drive section, is loaded into the second disk rotation drive section, the third or third disk rotation drive section 1. A disc playback device comprising: a disc insertion opening that allows the disc to be inserted into and removed from a second disc mounting portion.