JPH0383263A - Disk reproducing device - Google Patents

Abstract

PURPOSE:To speedily perform a housing operation when a disk mounted on a subtray is housed into a stocker by housing the subtray into a main tray in accordance with a housing place in the stocker and protruding it from a player. CONSTITUTION:On completion of reproducing of a disk, a driving pin 53 is moved in the direction of A, and the subtray 231 supported by a guard rail 49 is moved by energizing force of a spring 54 in the direction of C, while a movable pin 62 is moved by a driving source 125 in the direction of C, and a clamper 71 supported by a clamp arm 84 is moved in the direction of C. When this state is detected, a driving gear 36 meshed with a rack gear 35 is rotated by the driving source 122, and the main tray 30 mounted with the subtray 231 is brought under the state of protruding outside from an opening 33 of the player in the direction of B. The subtray 231 is housed into a prescribed stage in the stocker 20 by pressing down a required operating button for housing the disk into the stocker 20.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a disc playback device, and more particularly to a disc playback device equipped with a so-called changer function that can selectively play a plurality of discs.

(Prior art) Currently, multiple optically readable discs are stored in a removable stocker in a player, and this stocker is attached to a disc playback device to selectively play back the multiple discs. So-called changer type players are commercially available. Among these players, there are those that place a disc on a sub-tray and support this sub-tray to store a plurality of discs in a stocker, and those that directly support the periphery of the disc and store a plurality of discs in a stocker.

The former method, as disclosed in, for example, Japanese Utility Model Application Publication No. 195257/1982, includes a stocker that is removably engraved on the player and that stores a plurality of sub-trays on which discs are placed, and a sub-tray located inside the player. a main tray that is movable between a first position and a second position that protrudes from the player; A player with a sub-tray for this purpose is a good reference.

(Problem to be solved by the invention) In the conventional example described above, when loading discs into the stocker, the operator partially removes the stocker from the player, and then manually removes the subtray from the stocker. It is necessary to place the disc on the sub-tray, attach the sub-tray to the stocker, and then attach the stocker to the opening formed in the player, which has a disadvantage in operability. means) A sub-tray having a placing portion on which a disc is placed, and a sub-tray that is moved relative to the device so as to take a first position stored in the disk playback device and a second position projected outside the device. a main tray that removably supports a sub-tray; a disc playback means;
A sub-tray (a stocker that can store multiple sub-trays so that the rotating axes of the disks placed thereon are coaxial), and a first
a sub-tray moving means capable of moving the sub-tray between the main tray and the stocker in the first position; The apparatus comprises a disc loading means for loading the disc into the disc reproducing means.

(Function) When playing a disc that is not stored in the stocker,
A main tray containing a sub-tray is projected out of the player, a disc is placed on a disc mounting part of the sub-tray, and after the main tray and the sub-tray are stored in the player, the disc is played by a disc playing means.

Furthermore, when a desired disc is to be played from among the discs placed on each of the plurality of sub-trays stored in the stocker, the sub-tray is moved from the stocker to the main tray stored in the player, and the disc is played by the disc playing means. Furthermore, when storing discs in the stocker by placing them on a sub-tray, the main tray containing the sub-tray is made to protrude outside the player, and the disc loading section of the sub-tray (
After placing this disc and storing the main tray in the player, the sub-tray is moved and stored in the stocker.

(Example) FIGS. 1 to 3 show a disc playback device according to the present invention (in this case, a top view, a side view, and a side view showing a state in which the main tray 30 is housed inside the player 1), and FIG. E-
An E cross-sectional view is shown.

A drive gear 12 rotatably driven by a drive source 121 controlled by a control circuit 120 is rotatably supported 11 on the chassis 10 . Further, on the circumferential surface of the driving gear 12, a connecting gear 14 which is pivotally supported 13, 13, 13 on the chassis 10 is provided.
．． 14.14 are engaged. Each connecting gear 14°14
, 14 are worm gears 15.15°1 extending upward, respectively.
The leg portions 21.21.21 provided on the side surface of the stocker 20 capable of storing five disks are screwed into the worm gear 15.15.15. Therefore, as the worm gear 15.15.15 rotates, the stocker 2
0 is movable in the direction of arrow CD in FIG.

In the illustrated state, six sub-trays on which discs can be placed are located in the main tray 30 and in the first sub-tray 23.
．． However, each disk 5. ~5. (not shown) are placed on the second to sixth subtrays 23° to 23. are stored in the stocker 20 at predetermined intervals by a plurality of guides 24 formed on the inner side wall of the stocker 20. Here, the stocker 20 has a front opening 27 and a rear opening 27 formed on its front and rear surfaces, and has a sub-tray 23 stored therein. ~23. A portion of the front and rear ends of is exposed.

The illustrated positional arrangement (this fourth
As shown in FIG. 5, the front panel 3 of the player 1
The main tray 30, which can take two positions, protruding to the outside of the player 1 through an opening 33 formed in the main tray 30, has guide grooves 34 and 34 formed on both sides thereof. chassis 1
Tray guide 31 fixed at 0 and having a V-shaped tip
．． 31, 31, 31 are engaged with the guide grooves 34, 34, so that the main tray 30 is supported so as to be slidable in the direction A-8 in the figure.

The drive gear 36 is rotationally driven by a drive source 122 controlled by a control circuit 120, and is meshed with a rack gear 35 provided on one side of the main tray 30. The main tray 30 is driven in the A-8 direction.On both sides of the main tray 30, disc up-and-down mechanisms 40 and 40 are provided symmetrically in order to mount the disc on a turntable, which will be described later. A substantially circular notch 37 is formed in order to receive the disk.

FIGS. 9(a), (b), and (C) show the disk up/down mechanism 40.
40 is a top view, a side view, and a front view of essential parts, and the explanation will be given with one disk up and down mechanism 40.

As shown in FIG. 3, the main tray 30 has a substantially U-shaped cross section, and pins 42, 42 are installed upwardly on the lower wall 41. This pin 42.42 is inserted into an elongated hole 44.44 formed in the slide plate 43 (which is biased in the direction of arrow A in the figure) by a spring 54. Bent parts 47 and 48 are formed at both ends of the slide plate 43 and have cams 45 and 46 of the same shape. 50°51
is inserted. The guide rail 49 has a substantially U-shaped cross section, and supports the first sub-tray 23 in the illustrated state. Further, the bending portion 47 (in this case, an arm portion 52 is formed), and a drive pin 53 driven by a drive source 123 controlled by the control circuit 120 moves the slide plate 43 against the spring 54 via the arm portion 52. It is said that it can be pressed.

Here, as shown in FIG. 1F, a circular first recess 24 having approximately the same diameter as the outer diameter of a standard-sized disk is formed in the sub-tray 23° in order to place a disk thereon.
In the state where the disc is placed, the upper surface of the disc and the subtray 23. The depth of the recess 24 is set so that the upper surfaces of the two are flush with each other. In addition, information is recorded in the recess 24 in the same way as a standard size disc, and
In order to accommodate small-sized discs with small recording capacity,
A second recess 25 is formed in the first recess 24 (in contrast to the first recess 24, which is concentric and has a smaller diameter. A notch 26 for mounting the disc and for reading information recorded on the disc with an optical head is formed from the center to the outer edge.Furthermore, the sub-tray 23 has a notch 26 for restricting its movement, as will be described later. A regulation hole 102 is formed into which a regulation pin can be inserted.

This subtray 23. Each configuration is similar to that of the other sub-trays 23 . ~23. is the same as

In the illustrated state, the first drive roller 91.91 is
Sub tray 23. It is pressed against both rear edges of the Also, the second drive roller 92.92 is the first drive roller 9.
1.91 and behind the first drive roller 91.91. These first and second drive rollers 91, 91, 92, 92 are rotationally driven synchronously by a drive source 124 controlled by a control circuit 120. Here, the first drive roller 91, 91 is The second driving rollers 92 and 92 are arranged so that they are spaced apart from the rear side edges of the sub-tray stored in the main tray 30 when the sub-tray moves up and down within the main tray 30 and when the main tray 30 is moved.
When the tray 0 is moved up and down, it is simultaneously moved in a direction perpendicular to its axis of rotation and takes the position indicated by the dotted line, so as to separate from both front side lines of the sub-tray stored in the main tray 30.

In FIGS. 1 to M3, the optical helad base 60 is provided with a fixed pin 61 and a movable pin 62 on one side. The movable bin 62 is moved in the direction of arrow C-D within the elongated hole 63 formed in the optical head base 60 by a drive source 125t controlled by the control circuit 120, and is moved in the direction of arrow C-D.
It is inserted into a long hole 65 formed in a letter-shaped clamp arm 64. By providing a spring 66 between the movable bin 62 and the clamp arm 64, the movable bin 62
The clamp arm 64 is biased in the direction of the arrow in the figure so that the clamp arm 64 is positioned at the upper end of the elongated hole 65. In addition, the fixed bin 61
is inserted into a long hole 67 formed in the clamp arm 64 to guide the clamp arm 64 to move in the direction of arrow C-D in the figure when the movable pin 62 moves the clamp arm 64.

The tip of the shaft 6B fixed to the upper part of the clamp arm 64 has a large diameter portion 69, and a hemispherical protrusion 70 is formed at its lower end. The cylindrical clamper 71 has a large diameter portion 69 located in its internal space, and is rotatable about the shaft 68 while clamping the disk.

In cooperation with this clamper 71, a motor 82 drives a turntable 81 that rotates the disk by engaging the center hole formed in the disk, and a laser that optically reads information recorded on the disk. An optical head 84 is disposed on the optical radar base 60 and is equipped with an objective lens 83 for emitting a beam, and is movable in the diametrical direction of the disk along two guide rails 85, 85 fixed to the optical radar base 60. .

As shown in FIGS. 4 and 5, when the main tray 30 protrudes from the opening 33 formed in the front panel 32 of the player 1, the main tray 30 and the sub tray 2
5. In addition, as shown in FIGS. 1 to 3, when the main tray 30 is stored in the player 1, the subtray 23 can be stored in the stocker 20. Main tray 3
In order to be able to move towards 0f, the sub-tray regulating means 10
0 is set.

FIG. 10 is a diagram illustrating the sub-tray regulating means 100, and FIGS. 10(a) and 10(b) are a front view and a side view of the main part when the main tray 30 is stored inside the player 1,
FIG. 10(C) is a front view of the main part when the main tray 30 is protruded from the player 1, and FIG. 10(d) is a front view of the main part when the main tray 30 is stored inside the player 1 and the disc 5. In order to attach the disc to the turntable 81, the disc up/down mechanism 4
0.40 by subtray 23. FIG.

Hole 10 formed in one lower wall 41 of main tray 30
7, one end of which is a subtray 23. A regulation bottle 101 that can be inserted into a regulation hole 102 formed in the figure is inserted so as to be movable in the vertical direction in the figure. At the other end of the regulation bin 101, a guide bin 103 which is disposed on the upper surface of the optical heliometer base 60 and is engaged with a cam 105 having an L-shaped cross section, and a spring 108 which biases the regulation bin 101 are attached to the main tray. 30, a bin 104 for passing the hangings is formed. Further, a stopper 106 is fixed to the regulation bin 101 so as to be located below the hole 107.

The operation of the above configuration f will be described in detail.

First, a case will be described in which an attempt is made to play a disc that is not stored inside the player 1.

As shown in FIGS. 1 to 3, a main tray 30 that accommodates the subtray 23.degree. is located inside the player 1, and five discs are stored in the stocker 20 in the subtray 23.degree.
~23. In the state where the upper tray is placed and stored, the control unit 120 uses the drive source 124 to move the drive rollers 91, 91, 92, 92 to the subtray 23 in response to a required operation.
, the main tray 30 is brought to the dotted line position in the figure where it is not in pressure contact with the tray guide 3 .
It is guided by 1.31.31.31 and moved in eight directions in the figure.

As shown in FIGS. 4 and 5, in a state in which the main tray 30 protrudes from the opening 33 formed in the front panel 32 of the player 1, the sub-tray regulating means 100 as shown in FIG. As the tray 30 moves, the engagement between the guide bin 103 and the cam 105 is released. Therefore, the regulation bin 101 is brought to the illustrated position where the stopper 106 abuts the lower wall 41 of the main tray 30 by the biasing force of the spring 108, and the regulation bin 101 is moved to the sub-tray 23. [This is inserted into the formed regulation hole 102.] In this state, the subtray 23. is regulation bin 1
01 (This restricts movement in the horizontal direction relative to the main tray 30. Therefore, since it is prevented that the sub tray 23. is moved relative to the main tray 30 due to an operator's erroneous operation, The recess 24 formed in the sub-tray 23 through the cutout 37
．． There is no fear that the disk will not be able to be placed on the 25.

In the state shown in FIGS. 4 and 5, the main tray 3
0 through the recess 37 of the standard size disc 5, the recording surface of which is placed on the subtray 23. Subtray 23. When a required operation button is operated after the main tray 30 is placed in the first recess 24 formed in the guide groove 3, the drive gear 36 is rotationally driven by the drive source 122, and the main tray 30
4.34 and the tray guides 31° 31, 31.31 while being guided in the direction of arrow A in the figure.

Disc 5. The main tray 30 is placed in the first
When it is detected that the drive source 12 has been brought to the position shown in FIGS.
3 moves the drive bin 53.53 in eight directions in the figure. Therefore, the slide plate 43.43 in the disk up/down mechanism 40 shown in FIG. 9 resists the biasing force of the spring 54.54 while being guided by the long hole 44.44. and is moved in eight directions in the figure via the arms 52.52. Therefore, the slide plate 43.4
The cams 45, 45, 46, 46 formed on the bent portions 47, 47, 48, 48 of the guide bins 50, 50, .
51. Guide rails 49 and 49 are moved in the direction of the arrow in the figure via 51. Along with this movement, the guide rail 4
Sub-tray 23 supported at 9°49. is similarly moved in the direction of the arrow in the figure, but during the movement, the turntable 81 placed on the optical disc base 60 is moved. The sub-tray 23. By moving disk 5. The state shown in FIGS. 6 to 8 is brought to the state where the and subtray 23 degrees are separated.

At the same timing as the movement of the drive bins 53 and 53 described above, the movable bin 62 provided on the optical head base 60 is moved in the direction of the arrow in the figure by the drive source 125, and the clamp arm 64 is fixed to the fixed bin 61 via the spring 66. Similarly, move it in the direction of the arrow in the figure while guiding it. This movement of the clamp arm 64 causes the clamper 71 to come into contact with the upper surface of the turntable 81 (the disk 5 mounted thereon).The movable bin 62 further moves from this position, and the elongated hole 65
By being moved away from the upper end to the position shown in FIGS. 1116 to 8, the clamper 71 is moved by the spring 66 via the clamp arm 64 to the disk 5. is elastically pressed.

In this case, the turntable 81 (the clamped disk 5) is rotated by a motor 82 at a required speed, and the objective lens of the optical head 84 disposed on the optical head base 60 is rotated by a motor 82. Information recorded on the disc 5. is optically reproduced by laser light emitted from the disc 83.

Here, the subtray 23. is disk 5. In order to mount it on the turntable 81, move it from the position shown in Figs. 1 to 3 to the position shown in Figs. 6 to 8! l! Up to subtray 23. As shown in FIG. 10Cd), the regulation bin 101 is inserted into the regulation hole 102 formed in the sub-tray 23. Therefore, when the sub-tray 23 is lowered, Subtray regulation means 1
00 is the subtray 23 along the guide rail 49.49
．． Prohibit the movement of the parts to prevent adverse effects on other parts.

Disc 5. When the playback is finished, the turntable 81
The rotation of and the emission of laser light are stopped.

In this state f, when a required operation button is operated, the operation opposite to the above-mentioned operation is performed, and the drive bin 53 53 moves in the direction A in the figure, and the sub-tray supported by the guide rail 49 23. is moved in the C direction in the figure by the biasing force of the springs 54 and 54, the movable bin 62 is moved in the C direction in the figure by the drive source 125, and the clamper 71 supported by the clamp arm 84 is moved in the C direction in the figure. Let me be the first
When this state is detected, the drive gear 36 meshing with the rack gear 35 is rotated by the drive source 122r, and the main tray 30 is driven in the direction B in the figure. Player 1 shown in Figures 4 and 5
brought to a prominent state.

Next, a disk 5. is stored in a stocker 20 located inside the player 1. ~5. (not shown), the lowermost sub-tray 23. Disk placed on 5. (not shown) will be described.

When a required operation button is operated from the state shown in FIGS. 1 to 3, the first and second drive rollers 91, 91, 92, .
92 are simultaneously rotationally driven by the drive source 124, and the movement of the subtrays 23. Move in direction A in the figure. Sub tray 23. is guided by the guide 24 formed in the stocker 20, and when it is detected that it is stored in the uppermost stage of the stocker 20 through the front opening 27 of the stocker 20, the first and second driving rollers 91 .91.92
．． The rotation of the drive roller 92 is stopped and the drive roller 92 is brought to the position shown by the dotted line in FIG. is rotationally driven, the worm gear 15.15.15 rotates via the connecting gear 14.14.14, and the worm gear 15.15.
The stocker 20, which is integrated with the leg portions 21, 21, and 21 screwed together by the screws 15.15f, is moved in the direction C in the figure.

Fig. 11 f As shown, the stocker 20 is moved in the direction of arrow C (
This is moved and the subtray 23. is the second driving roller 9
2.92, the rotation of the drive gear 12 is stopped and the first and second drive rollers 91
．． 91, 92, and 92 are brought to the position shown by the solid line in FIG. It is pressed against both front side edges of the

In this state, the drive rollers 91.91.92.92 are rotationally driven by the drive source 124, thereby causing the subtray 23. is moved in the direction B in the figure, and the guide rail 49
．． 4! The patient is guided and brought to the position shown in FIGS. 1 to 3. When this state is detected, as explained above, the disk upper and lower structure 40.40 moves to the guide rail 4.
9 and lower the subtray 23. Disk placed on 5. is attached to the turntable 81.

When disc 5.0 playback is finished, disc 5. The subtray 23. is similar to the above explanation. As shown in FIG. 11, it is stored at the bottom of the stocker 20.

Next, the first section will briefly show the arrangement of each mechanism and the chronological operation of the operation of storing a disk in the stocker 20 when no disk is stored in the stocker 20.
This will be explained using Figure 2. Note that a detailed explanation of the operation is omitted because it overlaps with the operation explained above. Further, the sub-tray on which the disk is placed is indicated by diagonal lines.

Sub tray 23. are stored in the main tray 30 located inside the player 1, and the sub tray 23 is stored in the stocker 20.
．． ~23. FIG. 12(a) shows the state in which it is stored.

This state is the same as in Figures 1 to 3, and the disc playback mechanism consisting of the optical head, turntable, etc.
Indicated by

Here, when a required operation button is operated to store a disc in the stocker 20, the subtray 23. stocker 2
12 (b)), the stocker 20
12 (C)
), the subtray 2 stored in the second stage of the stocker 20
3. after moving it into the main tray 30 (Fig. 12 (
d)) The main tray 30 is made to protrude outside the player 1. In this state, place the disc on the sub-tray 23 (FIG. 12(e)), move the main tray 30 inside the player 1, and then move the sub-tray 237 to the stocker 2.
0 (FIG. 12(f)). Next, the stocker 20 is moved upward in the figure by a required distance, and the subtray 23 stored in the third stage of the stocker 20. into the main tray 30 to a movable position (first
Figure 2 (g)).

By performing the above operations continuously, the sub tray 2
3. ~23. Stores 5 discs.

In the above embodiment, the control circuit 120 shown in FIG. 1 controls each drive J 121 to 1 so that the player 1 is always in the state shown in FIG. 12(a) in the initial state such as when the power is turned on.
It controls 25. Therefore, when playing a disc that is not stored in player 1, simply
0 needs to protrude from the player 1, and its responsiveness and operability are no different from those of a player that does not have a changer function. However, when playing back a disc stored in the stocker 20, the subtray 23. It is necessary to store the discs on the top stage of the stocker 20 and move the stocker 20 up and down, and then move the sub-tray on which the desired disc is placed into the main tray 30.

Therefore, if emphasis is placed on responsiveness and operability when playing discs stored in the stocker 20, the control unit 120 controls each drive source so that the player 1 is always in the state shown in FIG. 12 (15) in the initial state. 121 to 125 are controlled. In this case, when playing back the disc stored in the stocker 20,
Since the vertical movement of the stocker 20 is the first operation, it is possible to improve the response speed compared to the above embodiment.

In the above embodiment, the player 1 also has the subtray 23. It is controlled by the control circuit 120 so that it cannot be stored in the stocker 20 with a disk placed thereon. This consists of subtrays 23, -23. If you want to play a disc that is not stored in the player 1 while the disc is stored in the main tray 30, one of the sub trays with the required disc must be stored in the main tray 30.
0 has to protrude from the player 1, which forces the operator to replace the disc. That is, the subtray 23. A disc is placed only when playing a disc that is not stored in the player 1.

However, if emphasis is placed on the storage capacity of discs inside the player 1, it is also possible to place discs on all six sub-trays and store them in the stocker 20. When playing a disc that is not loaded, if the stocker 20 includes subtrays with discs and subtrays with no discs, the subtrays that have discs loaded on them will A sub-tray that is not loaded is detected by a necessary detection means, and after being stored in the main tray, it is made to protrude from the player 1.Furthermore, if all discs are placed on the sub-trays stored in the stocker 20, After storing any sub tray in the main tray, player 1
The operator replaces the disk by protruding it from the disk.

Further, in the above embodiment, the stocker 20 is arranged on an extension line of the main tray 30 in the moving direction, but the present invention is not limited to this, and when the main tray 30 is located inside the player 1, the main tray It is also possible to arrange it in a direction perpendicular to the moving direction of 30.

Furthermore, in the above-mentioned embodiment, the disk up-and-down mechanism provided in the main tray moves the disk in a direction perpendicular to its recording surface and attaches it to the turntable, so that the disk playback mechanism moves up and down with respect to the chassis. Although the configuration is such that it does not move, the present invention is not limited to this.
Of course, various aspects can be taken.

(Effects of the Invention) As described above, according to the present invention, when a disc placed on a sub-tray is stored in a stocker, a sub-tray is provided according to the storage location of the stocker in order to play a disc that is not stored in the stocker. Store it in the main tray with
By protruding the main tray from the player in this state, the operator only has to place the discs to be stored on the sub-tray. Therefore, since the storage operation is performed mechanically without the operator's intervention, the storage operation can be performed speedily without staining or damaging the disc.

[Brief explanation of drawings]

1 to 3 are a top view, a side view, and a sectional view taken along the line E-E in FIG. A top view and a side view showing the state in which the main tray is protruded from the player, and FIGS. 6 to 8 are a top view and a side view showing the position where the disc is in the playing state. Cross-sectional views, Figures 9(a) to (C) are diagrams explaining the disk up and down mechanism, Figures 10(a) to (d) are diagrams explaining the sub-tray regulating means, and Figure 11 is a diagram showing the stocker moving upward. A side view of the device of the present invention in the state shown in FIG.
) to (9) are simplified configuration diagrams showing the arrangement and chronological operation of each mechanism in the device of the present invention, and FIG. 13 is a simplified configuration diagram of the conventional device. 1... Player, 2... Tray, 3... Disc playback mechanism, 4.20... Stocker, 5° to 5. ... Disc, work 0... Chassis, 12... Drive gear, 23
．． ~231...Subtray, 24.25...Recess, 2
7... Front opening, 28... Rear opening, 30 Main tray, 35... Rack gear, 36... Drive gear, 40
...Disc up and down mechanism, 43...Slide plate, 4
5.46...Cam, 49...Guide rail, 53.
... Drive bin, 91.92 ... Drive roller, 60.
...Optical head base, 62...Movable bin, 64...
・Clamp arm, 71... Clamper, 81...
Turntable, 82...Motor, 84...Optical head, 100...Subtray regulating means, 101...
Regulation bottle, 105... cam, 120... control circuit,
121-125... Drive source.

Claims (1)

[Scope of Claims] A sub-tray having a placing portion on which a disc is placed; and a sub-tray configured to take a first position stored in the disc playback device and a second position projected outside the device. a main tray that is movable relative to the main tray and that removably supports the sub-tray; a disc playback means that is disposed within the apparatus so that the rotation axes of the disc placed on the sub-tray are coaxial; a stocker capable of storing a plurality of the sub-trays; a sub-tray moving means capable of moving the sub-tray between the main tray in the first position and the stocker; when the main tray is in the first position; . A disc reproducing apparatus comprising: a disc mounting means for relatively moving the sub-tray and the disc reproducing means, and mounting the disc placed on the sub-tray onto the disc reproducing means.