JPH06195838A - Disk player - Google Patents

Abstract

PURPOSE:To replace the other side disk while one side recording disk is recorded/reproduced by parallely providing two disk positioning parts side by side on a disk tray movable back and forth and providing an advancing notched part for an optical pick-up on the rear part of each tray. CONSTITUTION:This disk player is provided with a disk tray 2 for positioning plural recording disks and mounting them. The tray 2 is provided with disk positioning parts 5 and 6. The positioning parts 5 and 6 are respectively provided with a large diameter disk positioning part 8 and a small diameter disk positioning part 9. The positioning parts 5 and 6 are horizontally arranged on the tray 2 and over a part from the centers of the recessed parts 9 of the positioning parts 5 and 6 to the rear edge part of the tray 2 notched parts 10 into which the optical pick-up advances are formed. While the disk mounted on one side of the positioning parts 5 and 6 is recorded/reproduced, the tray 2 is moved back and forth and the disk mounted on the other side of the positioning parts 5 and 6 can be replaced. Thus, continuous recording/ reproducing are carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player apparatus capable of mounting a plurality of recording discs such as optical discs at the same time and recording and / or reproducing an information signal on these recording discs.

[0002]

2. Description of the Related Art Conventionally, there has been proposed a disc player device for recording and / or reproducing an information signal on a recording disc such as an optical disc, a magnetic disc or a magneto-optical disc. In such a disc player device, a rotary drive mechanism that holds and rotates the recording disc and a recording disc that is rotationally operated by the rotary drive mechanism faces the recording disc and writes and / or writes information signals to and from the recording disc. Alternatively, it has a pickup device for reading. The rotary drive mechanism includes a spindle motor and a disk table mounted on the drive shaft of the spindle motor and on which the recording disk is mounted. When the recording disc is an optical disc, the pickup device includes:
An optical pickup device is used.

Conventionally, as the disc player device, a plurality of recording discs can be simultaneously mounted, and an information signal can be recorded and / or reproduced by selectively using these recording discs. Proposed. Such a disc player device has a disc tray on which the respective recording discs are positioned and mounted. The disc tray is movable in the front-rear direction between a position housed in the outer casing of the disc player device and a position protruding to the front side of the outer casing.

The disc tray has a turntable which can be rotated. This turntable is
The upper surface has a plurality of substantially circular recesses for positioning the recording disks. A plurality of disk positioning recesses corresponding to the diameter of the recording disk are formed on the upper surface of the turntable. These disc positioning recesses are formed at positions eccentric from the center of rotation of the turntable by the same distance. That is, these disc positioning recesses are arranged and formed on an arc centered on the rotation center of the turntable.

Further, on the turntable, the disc table and the optical pickup device face the lower surface of the recording disc positioned by the disc positioning recesses, corresponding to the bottoms of the disc positioning recesses. An opening is provided.

In this disc tray, when the turntable is rotated, the disc positioning recesses are rotated together with the turntable and move around the center of rotation of the turntable in an arcuate locus. . In this disc player device, the disc table is arranged at a position on the moving locus when the turntable rotates at the center position of each disc positioning recess.

When reproducing and / or recording information signals on a plurality of recording discs in this disc player device, first, these recording discs are fitted and positioned corresponding to the disc positioning recesses, Then, the turntable is rotated to select one recording disk. The selected recording disc has its center located above the disc table.
Then, when the disc table is operated upward, the disc table holds and holds the selected optical video disc, and the disc table is rotated.

[0008]

By the way, as described above, in the disc player device constructed so that a plurality of recording discs are mounted, a turn is provided in which the recording discs are arranged in an arc shape. Since the table is provided, the size in the depth direction cannot be reduced, and the device configuration becomes large.

Further, in the disc player device as described above, the moving operation of the disc tray cannot be performed while reproducing one recording disc. Therefore, in this disc player device, by continuously exchanging another disc during reproduction of one recording disc, a disc having a number of discs equal to or larger than the number of discs that can be placed on the disc tray at a time is continuously recorded. The operation of physically reproducing cannot be performed.

Therefore, the present invention has been proposed in view of the above circumstances, and continuously records and / or records information signals on a plurality of recording disks without increasing the size of the apparatus. Reproduction is possible, and while recording and / or reproducing one recording disc, another recording disc can be exchanged, and the number of recording discs that can be mounted at one time or more It is an object of the present invention to provide a disc player device capable of continuously recording and / or reproducing a disc.

[0011]

In order to solve the above-mentioned problems and achieve the above-mentioned object, a disc player device according to the present invention has a disc table which is rotationally operated by a rotation driving means and a position behind the disc table. And a sub-chassis provided with a pickup device that is moved toward and away from the disc table in the front-rear direction, and the sub-chassis in a lateral direction and a vertical direction extending from one side position to the other side position. And a plurality of notch portions extending from the central portion of each of the disc positioning recesses to the rear edge portion of the sub-chassis. The disc tray disposed at the upper side position, and the center portion of one of the disc positioning recesses on the disc tray is set on the disc table. A second moving operation means for moving operation in the longitudinal direction over the loading position and the unloading position of the front end than the loading position for direction,
A plurality of detecting means arranged corresponding to each of the disk positioning recesses to detect the presence or absence of a recording disk in the corresponding disk positioning recess; and a control means for controlling the operation of the first and second moving operation means. The control means is capable of moving the disc tray from the loading position to the unloading position and from the unloading position to the loading position when the sub-chassis is being lowered. While the sub-chassis is being raised, the disc tray can be moved from the loading position to the unloading position, and the sub-chassis is raised and the disc positioning corresponding to the position of the disc table is performed. There is no recording disc in the recess Is detected by the detection means, it is possible to move the disc tray from the unloading position to the loading position, and the sub-chassis is raised, and the disc corresponding to the position of the disc table is raised. When the presence of the recording disc in the positioning recess is detected by the detecting means, the disc tray is prohibited from moving from the unloading position to the loading position.

Further, the disc player device according to the present invention is operated so as to be rotated by the rotation drive means and to be moved in the front-back direction which is located on the rear side of the disc table and is brought into contact with and separated from the disc table. A sub-chassis provided with a pickup device, first moving operation means for moving and operating the sub-chassis in a lateral direction and an up-and-down direction between one side position and the other side position, and an upper surface portion. A plurality of disc positioning recesses are formed, and a plurality of notches extending from the central portion of each of the disc positioning recesses to the rear edge portion are provided, and the plurality of disc positioning recesses are stacked and arranged at the upper position of the sub chassis. Disc tray and one of these disc trays with the center of one of the disc positioning recesses facing the disc table. Second moving operation means for independently moving in the front-rear direction over the ding position, the stock position on the front side of the loading position, and the unloading on the front side of the stock position, and the discs. A plurality of detecting means arranged corresponding to each disk positioning recess of the tray to detect the presence / absence of a recording disk in the corresponding disk positioning recess; and a control means for controlling the operation of the first and second moving operation means. The control means moves each of the disc trays between the stock position and the unloading position, and selectively moves one disc tray to the loading position to select one of the disc trays. The recording disk placed in the disk positioning recess on the disk table. It is also possible to place the recording disk on the disc table, and to return the one disc tray on which the recording disc is placed to the stock position and the unloading position. When it is detected by the detecting means that there is no other recording disk in the disk positioning recess where the recording disk mounted on the disk was mounted, the one disk tray may be returned to the loading position. When it is detected by the detection means that another recording disk is present in the disk positioning recess where the recording disk mounted on the disk table was mounted,
Returning the one disc tray to the loading position is prohibited.

[0013]

In the disc player device according to the present invention, the sub-chassis on which the disc table and the pick-up device are arranged is operated to move the sub-chassis laterally and vertically, and a plurality of disc positioning recesses are provided. The control means for controlling the operation of the second moving operation means for moving the disk tray having the disk tray in the front-rear direction between the loading position and the unloading position on the front side of the loading position lowers the sub-chassis. It is possible to move the disc tray from the loading position to the unloading position and from the unloading position to the loading position when the sub-chassis is raised. From the loading position above When it is detected by the detection means that the sub-chassis is raised and the recording disc does not exist in the disc positioning recess corresponding to the position of the disc table, it is possible to move to the loading position. It is possible to move the disc tray from the unloading position to the loading position, the sub-chassis is raised, and the recording disc is present in the disc positioning recess corresponding to the position of the disc table. Is detected, the movement of the disc tray from the unloading position to the loading position is prohibited, so that continuous recording and / or reproducing of information signals on a plurality of recording discs is not possible. , Also above It makes it possible to exchange other recording disk on the disk tray when performing the recording and / or reproducing for one of the recording disk on Isukutorei.

Further, in the disc player device according to the present invention, a first moving operation means for moving the sub-chassis provided with the disc table and the pickup device in the lateral direction and the vertical direction, and a plurality of disc positioning devices. A second operation for independently moving the plurality of disc trays each having a recess and arranged in a stacked manner in the front-rear direction between a loading position and an unloading position on the front side of the loading position. The control means for controlling the operation with the moving operation means of the above means moves each of the disc trays between the stock position and the unloading position and selectively moves one disc tray to the loading position. A recording disc placed in one of the disc positioning recesses on the lever disc tray. Can be placed on the disc table, and the one disc tray having a recording disc placed on the disc table can be returned to the stock position and the unloading position. Further, when it is detected by the detecting means that there is no other recording disk in the disk positioning recess in which the recording disk mounted on the disk table is mounted, the one disk tray is When it is detected by the detection means that another recording disk is present in the disk positioning recess where the recording disk mounted on the disk table was mounted, it is possible to return to the loading position, Since it is prohibited to return the one disc tray to the loading position, Continuous recording and / or reproducing of information signals on a plurality of recording discs, and recording and / or reproducing of one recording disc on one disc tray. It is possible to exchange another recording disk on the tray and a disk on another disk tray.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings. This disc player device is shown in FIG.
Also, as shown in FIG. 2, it is configured to have an outer casing 1.
As shown in FIGS. 3 to 5, a chassis 11 is arranged on the bottom surface of the outer casing 1.

The disc player device has a disc tray 2 on which a plurality of recording discs can be positioned and placed. This disc tray 2 is
It is formed in a substantially rectangular flat plate shape and has first and second disk positioning portions 5 and 6 on the upper surface portion. Each of the disk positioning portions 5 and 6 is formed to have a large-diameter disk positioning recess 8 and a small-diameter disk positioning recess 9. The large-diameter disc positioning recess 8 is a circular recess and is formed to have a diameter and a depth with which a large-diameter recording disc having a diameter of, for example, 12 cm can be fitted and positioned. The small-diameter disc positioning recess 9 is a circular recess, has a diameter and a depth such that a small-diameter recording disc having a diameter of, for example, 8 cm can be inserted and positioned, and the large-diameter disc positioning recess 8 is provided. Are formed concentrically with each other, that is, are formed on the bottom surface of the large-diameter disk positioning recess 8.
It should be noted that these recording disks are disks configured as recording media for information signals, such as optical disks and magneto-optical disks, and are used as audio disks and video disks.

The disc positioning portions 5 and 6 are formed on the disc tray 2 in a lateral arrangement. That is, in the disc tray 2, the first disc positioning portion 5 is formed on one side portion and the second disc positioning portion 6 is formed on the other side portion. The disc tray 2 is formed with notches 10 corresponding to the disc positioning portions 5 and 6. These notches 10,
A reference numeral 10 is formed from the center of each of the disc positioning portions 5 and 6, that is, from the center of the small-diameter disc positioning recesses 9 and 9 to the rear edge of the disc tray 2. These notches 10 and 10 are open to the rear side of the disc tray 2.

Photo couplers 44, 44, which are detection means for detecting the presence / absence of a recording disc in the disc positioning portions 5, 6 are attached to the disc tray 2 in correspondence with the respective disc positioning portions 5, 6. Has been. As shown in FIGS. 6 and 11, these photo couplers 44, 44 are attached to a support portion 50 provided on the bottom surface of the disc tray 2 via a support piece 49, and each of the disc positioning portions 5, 5 described above. 6 through the through holes 51, 51 formed in the bottom surface of the small-diameter disk positioning recess 9, 9.
It faces the upper side of the disc tray 2. These photo couplers 44, 44 are configured to have a light source such as an LED and a photodetector element such as a phototransistor. These photocouplers 44, 44 irradiate the recording discs fitted and mounted in the corresponding disc positioning portions 5, 6 with the light flux emitted from the light source through the through hole 51, and the light fluxes are reflected by the recording discs. By detecting the presence / absence of light, the presence / absence of a recording disc in the disc positioning portions 5, 6 is detected.

As shown in FIGS. 3 and 5, the disc tray 2 is disposed on the chassis 11 with both side portions supported, and is movable in the front-rear direction. That is, in the disc tray 2, one side portion is vertically supported on the chassis 11 and the one side support member 43 is provided.
The other side portion is supported by the other side support member 12 disposed on the chassis 11. A rack gear portion 7 is formed on the other side portion of the disc tray 2. A pinion gear 15, which is rotated by a disc tray moving motor 13 mounted on the other side support member 12, is meshed with the rack gear portion 7. That is, the transmission gear 14 is attached to the drive shaft of the tray moving motor 13. The transmission gear 14 meshes with the pinion gear 15 rotatably supported by the other side support member 12. The disc tray 2 is moved by the tray moving motor 13
As indicated by an arrow A in FIGS. 2 and 3, the movement operation is performed in the front-rear direction.

In the initial state, the disc tray 2 is located on the chassis 11 and is in a loading position for being housed in the outer casing 1, as shown in FIG. The disc tray 2 is provided with slits formed on the front surface of the outer casing 1 by the tray moving motor 13 as shown in FIG. The operation is performed via 3 to an unloading position that is projected to a predetermined position on the front side of the outer casing 1.

Further, in the outer casing 1, as shown in FIGS.
As shown in FIG. 5, a rotary drive mechanism for holding and rotating the recording disk, and a recording disk that is rotated by the rotary drive mechanism are opposed to write and / or read information signals to and from the recording disk. A sub-chassis 31 in which an optical pickup device 40, which is a pickup device to perform, is disposed is housed. The rotation drive mechanism includes a spindle motor attached to the sub chassis 31 and a disk table 39 attached to the drive shaft of the spindle motor. The optical pickup device has an optical block section, and in the optical block section, a light source such as a semiconductor laser, an optical device for guiding a light beam emitted by the light source, an objective lens for condensing the light beam on the recording disk, and , And a photodetector for detecting the light flux reflected by the recording disk.

In the sub-chassis 31, the optical pickup device 40 is supported by a pair of support shafts 47 and 48 which are parallel to each other so as to be movable along the support shafts 47 and 48, as shown in FIG. Has been done. The movable direction of the optical pickup device 40 is a contacting / separating direction with respect to the disc table 39, as shown by an arrow F in FIG. Further, this optical pickup device has an optical axis of the objective lens, that is,
The central axis of the light beam emitted from the objective lens is parallel to the drive shaft of the spindle motor, and the emission direction of the light beam is the front end side direction of the drive shaft.

The sub-chassis 31 is oriented in a direction to position the optical pickup device 40 on the rear side of the disc table 39, is positioned on the lower side of the disc tray 2, and is disposed on the chassis 11. It is arranged on the first loading plate 25. The first loading plate 25 is formed in a substantially flat plate shape, and both side portions are bent downward. The first loading plate 25 has four support shafts 27, 27, 27, 27 hung downward at four corners. And
The first loading plate 25 is fitted with the support shafts 27, 27, 27, 27 corresponding to the shaft support cylinders 28, 28, 28, 28 provided on the chassis 11 to fit them. It is parallel to the chassis 11 and is supported so as to be movable in the vertical direction, that is, in the contacting / separating direction with respect to the chassis 11.

As shown in FIG. 7, the sub-chassis 31 is arranged with respect to the first loading plate 25.
It is movably supported and attached along the guide shafts 32 and 33 through a pair of parallel guide shafts 32 and 33. Both ends of these guide shafts 32, 33 are supported by the upper surface of the first loading plate 25, and are arranged so as to extend laterally. That is, the sub chassis 31 is movable on the first loading plate 25 between the one side position and the other side position.

An endless drive wire 34 is attached to the sub chassis 31. The endless drive wire 34 is stretched between a pair of pulleys 35 and 36 rotatably arranged on the first loading plate 25. One of the pair of pulleys 35, 36 is arranged at a position on one side of the first loading plate 25 and the other is arranged at a position on the other side of the first loading plate 25. A worm wheel is integrally formed on one of the pair of pulleys 35 and 36. The worm wheel includes the first loading plate 2
The worm gear 38 attached to the drive shaft of the sub-chassis moving motor 37 disposed on the gear 5 is meshed with it. That is, by driving the sub chassis movement motor 37,
The sub-chassis 31 is moved along the guide shafts 32 and 33 through the worm gear 38, the worm wheel and the endless drive wire 34, as indicated by arrow E in FIG.

Further, first and second position detection switches 46 and 45 are mounted on the first loading plate 25. These position detection switches 46 and 45 are
This is a so-called micro switch, and is arranged so as to be pressed by the sub chassis 31. That is, when the sub-chassis 31 is set to the first position which is the one side position on the first loading plate 25, the sub-chassis 31 presses the first position detection switch 46,
The second side which is the other side position on the first loading plate 25
When the position is set to, the second position detection switch 45 is pressed. Sub chassis moving motor 3
When any one of the position detection switches 46 and 45 is pressed, 7 stops and positions the chassis 31 at either the first position or the second position.

When the disc tray 2 is in the loading position and the sub-chassis 31 is in the first position as shown in FIG. 6, the sub-chassis 31 moves the disc table 39 to the first position. It is located on the center of the disk positioning portion 5. Further, when the disc tray 2 is at the loading position, the sub-chassis 31 has the disc table 39 at the second position when the disc tray 2 is at the second position.
It is positioned on the center of the disk positioning portion 6.

The first loading plate 25 has a pair of left and right support pins 29, 29 projecting outward from both sides, and these support pins 29, 29 are mounted on the chassis 11. Are engaged with the first cam grooves of the pair of left and right cam plates 16 and 17 disposed on both sides of the.

The cam plates 16 and 17 are arranged so as to be movable in the front-rear direction with respect to the chassis 11.
These cam plates 16 and 17 are moved and operated in the front-rear direction by a loading motor 18 arranged on the chassis 11. That is, the loading motor 18
Operates the cam gear 20 rotatably arranged on the chassis 11 via the transmission gear 19. When the cam gear 20 is rotationally operated, it is
The loading arm 22 rotatably supported on the chassis 11 via the support shaft 21 is rotated as shown by an arrow B in FIG. This loading arm 22
Is rotatably supported by the support shaft 21 at a substantially central portion thereof, and is rotatably engaged at both end sides thereof with the pair of cam plates 16 and 17 through the engaging portions 23 and 24, respectively. I am combining. That is, the driving force of the loading motor 18 causes the cam plates 16 and 17 to move to the arrow C in FIG.
As shown by, the moving operation is performed in the front-rear direction in opposite phases.

When the cam plates 16 and 17 are moved in the front-rear direction, the first loading plate 25 is moved by the first cam groove through the support pins 29 and 29, as shown in FIG. As shown by the middle arrow D, in the vertical direction, that is,
It is moved in the direction of contact with and separated from the chassis 11 and stopped at a predetermined height position.

A second loading plate 26 is arranged on the chassis 11. The second loading plate 26 is located on the upper side of the disc tray 2, and the side portions bent downward are arranged on the respective cam plates 1.
It is supported by 6,17. That is, the second loading plate 26 has a pair of left and right support pins 30 and 30 projecting outward from both side portions, and these support pins 30 and 30 are connected to the cam plates 16 respectively. , 17 second
Is supported by being engaged with the cam groove. When the cam plates 16 and 17 are moved in the front-rear direction, the second loading plate 26 is moved by the second cam groove via the support pins 30 and 30 by the arrow D in FIG. As shown in FIG. 5, the moving operation is performed in the vertical direction, that is, the contacting / separating direction with respect to the chassis 11, and the stopping operation is performed at a predetermined height position.

First and second chucking members 41 and 42 are attached to one side position and the other side position of the second loading plate 26. The chucking members 41, 42 are each formed in a substantially disc shape, and are rotatably attached to the second loading plate 26. These chucking members 41, 42 are at positions corresponding to the positions of the disk positioning portions 5, 6 of the disk tray 2, that is, the disk table 39 when the sub-chassis 31 is at the first position.
And a position facing the disk table 39 when the sub-chassis 31 is in the second position. These chucking members 41, 42
Is a member for sandwiching the central portion of the recording disk placed on the disk table 39 in cooperation with the disk table 39.

When performing recording and / or reproducing on the large-diameter or small-diameter recording disc in the disc player device configured as described above, first, as shown in FIG. Each of the disc positioning portions 5 and 6 serves as the unloading position.
Are projected to the front side of the outer casing 1. Then, the large-diameter or small-diameter recording disk is fitted and positioned in the respective disk positioning recesses 8 and 9 and placed. At this time, a maximum of two recording disks can be placed on this disk player device. Next, as shown in FIG. 1, the disc tray 2 is set to the loading position and is housed in the outer casing 1.

This disc player device is shown in FIG.
As shown in FIG. 9, it has a control circuit 60 as a control means. The control circuit 60 includes the photo couplers 44.
The detection circuit 61 to which the output signal of (1) is sent and the operation unit 4 provided on the front surface of the outer casing 1 are connected. The detection circuit 61 detects, in accordance with the output signal of the photocoupler 44, in which of the disc positioning recesses 5 and 6 the recording disc is placed, and sends the detection result to the control circuit 60. The operation unit 4 is configured to move the disc tray 2, select a recording disc by moving the sub-chassis 31, and select the optical pickup device 4.
0 or a plurality of push button switches for instructing the start and stop of the reproducing operation of the recording disk selected by the reproducing unit 62 including the sub chassis 31 and the like. Then, the control circuit 60 includes the detection circuit 61.
Also, based on a signal sent from the operation unit 4, the reproduction unit 62, the sub-chassis moving motor 37, the loading motor 18, and the tray moving motor 13 are drive-controlled.

The sub-chassis 31 has the control circuit 6
The position 0 is set to either the first position or the second position to select one of the first and second disk positioning portions 5 and 6.
At this time, the disk positioning portion selected by the sub-chassis 31, that is, the recording disk mounted on the disk positioning portion on the side where the sub-chassis 31 is operated, is the chucking disk provided in the central portion. The through hole faces the disc table 39.

In order to place the recording disk selected by the subchassis 31 on the disk table 39, the cam plates 16 and 17 are moved to operate as shown by arrow G in FIG. First loading plate 2
Operate 5 up. Then, the disk table 39
Is, as shown in FIG.
6 is inserted into one of the notches 10 and the recording disk 101 is pushed up from the lower side to move upward, and the recording disk 101 is moved to the chucking members 41, 42.
Work together with either of the two to pinch. The disc table 39 rotates the recording disc 101 sandwiched in cooperation with any of the chucking members 41 and 42 together with the chucking members 41 and 42. At this time, the optical pickup device 40 is inserted into the cutout portion 10.

In the optical pickup device 40, the objective lens can be opposed to the inner and outer circumferences of the recording disk 101 placed on the disk table 39 through the cutout portion 10, and the recording can be performed. Disk 10
The information signal is written and / or read over the entire surface of the signal recording surface on the lower side of 1.

In this disc player device, the holding of the recording disc 101 by the disc table 39 is released, and the sub-chassis 31 is moved to operate the disc positioning portions 5, 6 respectively.
Recording and / or reproduction can be continuously and sequentially performed on the two recording disks 101 positioned by.

In this disc player device, the disc tray 2 is provided with the recording disc 101.
When the writing and / or reading of the information signal is performed, the information signal can be moved to the front side and set to the unloading position as indicated by an arrow H in FIG. That is, in the disc tray 2, since the notches 10 and 10 are open to the rear side, the disc table 3 is provided in the notches 10 and 10.
9 and the optical pickup device 40 are moved to the front side when they are positioned, the disk table 3
9 and the optical pickup device 40 do not come into contact with each other.

Therefore, in this disc player device, recording and / or reproduction is performed on one recording disc 101 of the two recording discs 101, 101 placed on the respective disc positioning portions 5, 6. During this time, the disc tray 2 can be set to the unloading position and the other recording disc 101 can be replaced. The recording disk 101 that has been exchanged and newly placed on the disk tray 2 can be mounted on the disk table 39 by moving the sub chassis 31.

That is, in this disc player device, the two recording discs 101 placed on the disc positioning portions 5 and 6 of the disc tray 2 are alternately reproduced, and during reproduction of one recording disc 101. By exchanging another recording disk 101 that has been reproduced,
Recording disc 1 that can be placed on the disc tray 2
Recording and / or reproduction can be continuously performed on the number of recording disks 101 exceeding 01.

In this disc player device, the sub-chassis 31 is lowered to release the holding of the recording disc 101 by the disc table 39, and the disc tray 2 is set to the unloading position. The recording disk 101 can be taken out to the outside.

In the disc player device, the control circuit 60 controls the disc table 39.
While holding the recording disc 101, the disc tray 2 is set to the unloading position, and another recording disc 101 is mounted on the disc positioning portions 5 and 6 on the side corresponding to the position of the disc table 39 at this time. When placed, it is forbidden to return the disc tray 2 to the loading position.

That is, as shown in the flow chart of FIG. 20, when the control circuit 60 starts operation in step st1, it determines in step st2 whether or not the play button of the operation section 4 has been operated. If the play button is operated, the process proceeds to step st16 and returns. If the play button is not operated, the process proceeds to step st3.

The control circuit 60 controls the step st3.
At, it is determined whether or not the disc tray 2 is at the unloading position. If the disc tray 2 is not in the unloading position, the process proceeds to step st14 and the disc tray 2
Is set to the unloading position, the process proceeds to step st4.

At step st14, the control circuit 60 reproduces (plays) the recording disk 101.
Is started, the process proceeds to step st15 and returns.

In step st4, the control circuit 60 determines whether or not the recording disk 101 is placed in the first disk positioning recess 5 based on the detection signal sent from the detection circuit 61. Determine.
If the recording disc 101 is placed in the first disc positioning recess 5, the process proceeds to step st5, and the recording disc 10 is placed in the first disc positioning recess 5.
If 1 is not placed, the process proceeds to step st6.

In step st5, the control circuit 60 determines whether or not the recording disc 101 is placed in the second disc positioning recess 6 based on the detection signal sent from the detection circuit 61. Determine.
If the recording disc 101 is placed in the second disc positioning recess 6, the process proceeds to step st7, and the recording disc 10 is placed in the second disc positioning recess 6.
If 1 is not placed, the process proceeds to step st8.

On the other hand, also in step st6, the control circuit 60 causes the second disc positioning recess 6 to be formed.
Whether or not the recording disk 101 is mounted on
The determination is made based on the detection signal sent from the detection circuit 61. Here, if the recording disc 101 is placed in the second disc positioning recess 6, the process proceeds to step st9, and if the recording disc 101 is not placed in the second disc positioning recess 6, Go to step st10.

In step st7, the control circuit 60 sets "11" as the disc presence / absence determination bit.
Is set, and the process proceeds to step st11. Above step st
In 8, the control circuit 60 sets "10" as the disc presence / absence determination bit, and proceeds to step st11. In step st9, the control circuit 60 sets "01" as the disc presence / absence determination bit.
Is set, and the process proceeds to step st11. Further, in the step st10, the control circuit 60 sets "00" as the disc presence / absence determination bit, and proceeds to step st11.

In step st11, the control circuit 60 sets the performance determination bit, and in step st11.
Proceed to 12. This performance determination bit is used for the control circuit 60.
As a result, the recording disk 101 placed in the first disk positioning recess 5 is transferred to the disk table 39.
“10” if the recording disk 101 is placed on the disk table 39 or is being reproduced. "01", which recording disc 1
If 01 is also not placed on the disk table 39, it is set to "00".

In step st12, the disc presence / absence determination bit and the performance determination bit are ANDed.
(AND) determination is performed, and the process proceeds to step st13. That is, the disc presence / absence determination bit is "11" or "10" and the performance determination bit is "10", or
When the disc presence / absence determination bit is "11" or "01" and the performance determination bit is "01", the AND determination result is "1".
The ND determination result is “0”. The fact that the AND determination result is "1" means that the position of the disc table 39 holding the recording disc 101 among the disc positioning portions 5 and 6 of the disc tray 2 set to the unloading position. It shows that another recording disk 101 is placed in the disk positioning recesses 5 and 6 on the side corresponding to.

In step st13, the control circuit 60 determines the result of the AND determination. If the result of the AND determination is "1", the above step st4
Returning to step ST14, if the result of the AND determination is "0", the process proceeds to step st14. In step st14, the control circuit 60 moves the disc tray 2 to the loading position, causes the reproducing section 62 to operate,
Start the reproduction of the above-mentioned recording disc, and step st
Proceed to 15 and return.

Therefore, the control circuit 60 causes the disc tray 2 to be unloaded when the sub-chassis 31 is in the first position and the recording disc 101 is placed on the disc table 39. When the photo coupler 44 detects that the recording disk 101 is placed on the first disk positioning portion 5, the disk tray 2 is not moved to the loading position. Further, the control circuit 60 controls the recording disc 1 to be placed on the disc table 39 with the sub-chassis 31 in the second position.
01 is placed, when the photo coupler 44 detects that the disc tray 2 is set to the unloading position and the recording disc 101 is placed on the second disc positioning portion 6. , The disc tray 2 is not moved to the loading position.

The disc player device according to the present invention has a plurality of disc trays 2 as described above on which a plurality of recording discs can be placed, and the plurality of disc trays are arranged in a laminated manner. Can be configured.

As shown in FIGS. 12 and 13, this disc player device has an outer casing 1 as in the disc player device described above. As shown in FIGS. 14 to 15, a chassis 11 is arranged in the outer casing 1, and the chassis 11 is located on the chassis 11 and is stacked on top of each other in the upper disc tray 2a and the lower disc tray 2a. 2b is stored. In addition, this outer casing 1
The sub-chassis 31 in which the rotation drive mechanism and the optical pickup device 40 are arranged is housed therein.

The disc trays 2a and 2b are constructed in the same manner as the disc tray 2 in the disc player device described above. That is, the first and second disc positioning portions 5 and 6 are formed on the disc trays 2a and 2b, respectively. Each of the disc positioning portions 5 and 6 is configured to have the large-diameter disc positioning recess 8 and the small-diameter disc positioning recess 9 similarly to the disc positioning parts 5 and 6 in the disc player device described above. .

Each of the disc trays 2a and 2b is shown in FIG.
As shown in FIG. 4 and FIG. 15, both side portions are disposed on the chassis 11 so as to be supported, and are independently movable in the front-rear direction.

That is, the upper disc tray 2a
Is supported by the upper end side portion of the one side support member 43 vertically installed on the chassis 11, and the other side portion of the other side support member 12 disposed on the chassis 11. Is supported by the upper end portion of the. A rack gear portion 7 is formed on the other side of the upper disc tray 2a. The rack gear portion 7 has a pinion gear 1 which is rotated by a first disc tray moving motor 13a attached to the other side support member 12 and arranged.
5a is meshed. That is, the transmission gear 14a is attached to the drive shaft of the first tray moving motor 13a. The transmission gear 14a meshes with the pinion gear 15a that is rotatably supported by the upper end portion of the other-side support member 12. The disc tray 2a on the upper stage is moved and operated in the front-rear direction by the first tray movement motor 13a as indicated by an arrow A in FIGS.

Then, the lower disk tray 2b
Is supported at a midway portion of the one side support member 43 vertically provided on the chassis 11, and the other side portion of the other side support member 12 disposed on the chassis 11. It is supported by an intermediate portion and is located between the upper disc tray 2 a and the chassis 11. On the other side of the lower disc tray 2b, the rack gear 7
Are formed. A pinion gear 15b, which is rotationally operated by a second disc tray moving motor 13b attached to the other side support member 12, is meshed with the rack gear portion 7. That is, the transmission gear 14b is attached to the drive shaft of the first tray moving motor 13b. The transmission gear 14b meshes with the pinion gear 15b that is rotatably supported in the middle portion of the other side support member 12. The lower disc tray 2b is moved in the front-rear direction by the second tray moving motor 13b as shown by an arrow A in FIGS.

In the initial state, the disc trays 2a and 2b are housed in the outer casing 1, respectively, and their front edges are substantially flush with the front face portion of the outer casing 1, as shown in FIG. The stock position has been set. The disc trays 2a and 2b are used to move the tray moving motors 13a and 13b when the recording disc 101 is attached to and detached from the disc player device.
By 13b, it is moved to an unloading position protruding to a predetermined position on the front side of the outer casing 1 through a slit 3 formed in the front surface portion of the outer casing 1. The disc trays 2a and 2b are moved from the stock position by the tray moving motors 13a and 13b when recording and / or reproducing the recording disc 101 placed on the disc trays 2a and 2b. Further, it is moved further to the rear side, that is, to the loading position which is the inner side of the outer casing 1.

In this disc player device, the sub-chassis 31 is arranged on the first loading plate 25 as in the disc player device described above. Further, the first and second loading plates 25, 26 are moved in the vertical direction, that is, in the contacting / separating direction with respect to the chassis 11, by the pair of left and right cam plates 16, 17 as in the disc player device described above. It is moved and stopped at a predetermined height. The sub-chassis 31 can move the disc table 39 between the central portions of the disc positioning portions 5 and 6 of the disc trays 2a and 2b at the loading position as shown by an arrow E in FIG. , Are provided.

When performing recording and / or reproducing on the recording disc 101 in the disc player device configured as described above, first, FIG. 12 and FIG.
As shown in FIG. 3, the disc trays 2a and 2b are
Sequentially, the disk positioning portions 5 and 6 are sequentially moved to the unloading position and the outer casing 1 is sequentially moved.
To the front side of. Then, the recording disk 10
1 is fitted and positioned in the large-diameter or small-diameter disc positioning recesses 8 and 9 of the disc positioning portions 5 and 6, respectively. At this time, a maximum of four recording discs 101 can be placed on this disc player device. Next, the above-mentioned disc trays 2a, 2
b are respectively set to the above-mentioned stock position and housed in the outer casing 1.

Also in this disc player device, movement control of the disc trays 2a and 2b, the sub-chassis 31, the optical pickup device 40 and the like, that is, the sub-chassis moving motor 37, the loading motor 18 and the above-mentioned each is performed. Tray moving motor 13a,
The drive control of 13b and the like is performed by the control circuit 60 in accordance with the operation on the operation unit provided on the front surface of the outer casing 1.

The disc trays 2a, 2b are each
Only one of them is selected by the control circuit 60 and moved to the loading position. The sub-chassis 31 is set to either the first position or the second position by the control circuit 60, so that each disc of the one disc tray 2a or 2b is set to the loading position. Any one of the positioning units 5 and 6 is selected. At this time, the disc positioning portion selected by the sub chassis 31, that is, the disc tray 2 at the loading position is set.
The recording disk mounted on the disk positioning portion on the side where the sub chassis 31 of a and 2b is moved is made to have a chucking through hole opened in the central portion facing the disk table 39.

When the upper disc tray 2a is at the loading position, the loading plates 26 and 25 are located above and below the upper disc tray 2a, as shown in FIG. The movement is controlled by the cam plates 16 and 17 so as to be positioned at a predetermined distance from the disc tray 2a.

In order to place the recording disk 101 selected by the sub chassis 31 on the upper disk tray 2a on the disk table 39, the cam plates 16 and 17 are moved and operated. As shown by an arrow G in FIG. 17, the first loading plate 25 is lifted. Then, the disk table 39 is
The recording disk 101 is inserted through the cutout portion 10 of any one of the disk positioning portions 5 and 6 and is pushed up from the lower side to move upward, and the recording disk 101 is shared with any one of the chucking members 41 and 42. Work and pinch. The disc table 39 rotates the recording disc 101 sandwiched in cooperation with any of the chucking members 41 and 42 together with the chucking members 41 and 42. At this time, the optical pickup device 40 is inserted into the cutout portion 10.

In the optical pickup device 40, the objective lens can be opposed to the recording disc 101 placed on the disc table 39 through the cutout portion 10 so that the objective lens faces the recording disc 101. Disk 10
The information signal is written and / or read over the entire surface of the signal recording surface on the lower side of 1.

When the lower disc tray 2b is at the loading position, the loading plates 26 and 25 are located above and below the lower disc tray 2b, as shown in FIG. As shown in FIG.
As shown by the middle arrow J, the descending operation is performed.

In order to place the recording disc 101 selected by the sub chassis 31 on the lower disc tray 2b on the disc table 39, the cam plates 16 and 17 are moved and operated. As shown by an arrow G in FIG. 18, the first loading plate 25 is lifted. Then, the disk table 39 is
The recording disk 101 is inserted through the cutout portion 10 of any one of the disk positioning portions 5 and 6 and is pushed up from the lower side to move upward, and the recording disk 101 is shared with any one of the chucking members 41 and 42. Work and pinch. The disc table 39 rotates the recording disc 101 sandwiched in cooperation with any of the chucking members 41 and 42 together with the chucking members 41 and 42. At this time, the optical pickup device 40 is inserted into the cutout portion 10.

In the optical pickup device 40, the objective lens can be opposed to the inner and outer circumferences of the recording disc 101 placed on the disc table 39 through the cutout portion 10, and the recording can be performed. Disk 10
The information signal is written and / or read over the entire surface of the signal recording surface on the lower side of 1.

In this disc player device, the holding of the recording disc 101 by the disc table 39 is released, the sub-chassis 31 is moved, and the disc trays 2a, 2b at the loading position are moved. By alternating, the disc positioning portions 5, 6 of the disc trays 2a, 2b are replaced.
Recording and / or reproduction can be continuously and sequentially performed on the four recording disks 101 positioned by.

In the disc player device, the disc trays 2a and 2b are moved to the front side while writing and / or reading the information signal from the recording disc 101, and Can be made in unloading position. That is, each of the disc trays 2a and 2b has the cutout portion 1
Since 0 and 10 are opened to the rear side, even if the disk table 39 and the optical pickup device 40 are moved to the front side when they are located in the notches 10 and 10, these disk tables 39 and 39 and the optical pickup device 40 do not come into contact with each other.

Therefore, in this disc player device, the four recording discs 1 placed on the disc positioning portions 5 and 6 of the disc trays 2a and 2b are provided.
01, 101, while recording and / or reproducing on one recording disc 101, each disc tray 2a, 2b is set to the unloading position and another recording disc 101 is replaced. You can The disc trays 2a and 2b are replaced and newly replaced.
The recording disc 101 placed on the disc can be mounted on the disc table 39 by moving one of the disc chassis 2a and 2b to the loading position and moving the sub chassis 31. .

That is, in this disc player device, the four recording discs 10 placed on the disc positioning portions 5 and 6 of the disc trays 2a and 2b, respectively.
The number of recording disks that can be placed on each of the above-mentioned disk trays 2a and 2b is changed by sequentially reproducing one recording disk 101 and replacing another recording disk 101 which has been reproduced during the reproduction of one recording disk 101. Recording and / or reproduction can be continuously performed on the number of recording disks 101 that exceeds the limit.

In the disc player device, the holding of the recording disc 101 by the disc table 39 is released by lowering the sub-chassis 31, and the disc trays 2a and 2b are sequentially unloaded. By setting the position, the recording disk 101 can be taken out to the outside.

Also in this disc player device, as shown in FIG. 19, a control circuit 60 serving as control means is provided. The control circuit 60 includes the detection circuit 61 described above.
And the operation unit 4 is connected. This control circuit 60
On the basis of the signals sent from the detection circuit 61 and the operation unit 4, the reproducing unit 62 including the optical pickup device 40 and the sub-chassis 31, the sub-chassis moving motor 37, the loading motor 18 and the trays. The movement motors 13a and 13b are drive-controlled.

In this disc player device, the operating portion 4 provided on the front panel portion of the outer casing 1 is used.
Is for instructing the position of each of the disc trays 2a and 2b and the recording and / or reproducing operation for the recording disc 101.

As shown in FIG. 10, the operation section 4 is a first and second operation section for instructing the movement of the disc trays 2a, 2b between the stock position or the loading position and the unloading position. It has open / close buttons 52 and 53. When the first open / close button 52 is pressed, the upper disc tray 2a is moved to the unloading position when it is in the stock position or the loading position, and is moved to the unloading position. If it is, it is moved to the above stock position. When the second open / close button 53 is pressed, the disc tray 2b in the lower stage is moved to the unloading position when it is in the stock position or the loading position, and becomes the unloading position. If it is, it is moved to the above stock position.

The operation section 4 also includes first to fourth play buttons 54, 55, 56, 5 for instructing movement control of the sub chassis 31 and the loading plates 25, 26.
Have 7. When the first play button 54 is pressed, only the upper disc tray 2a is set to the loading position, and the sub chassis 31 and the loading plates 25 and 26 are moved to move the upper tray. The recording disk 101 placed on the first positioning portion 5 of the disk tray 2a is held on the disk table 39 and rotated. Second above
When the play button 55 is pressed, only the upper disc tray 2a is set to the loading position, and the sub chassis 31 and the loading plates 2 are
5 and 26 are moved, the recording disk 101 placed on the second positioning portion 6 of the upper disk tray 2a is held on the disk table 39 and rotated. When the third play button 56 is pressed, only the lower disc tray 2b is set to the loading position, and the sub chassis 31 and the loading plates 25 and 26 are moved to move the lower stage. The recording disc 101 placed on the first positioning portion 5 of the disc tray 2b is held on the disc table 39 and rotated. And
When the fourth play button 57 is pressed, only the lower disc tray 2b is set to the loading position, and the sub chassis 31 and the loading plates 25 and 26 are moved to move the lower tray. The recording disc 101 placed on the second positioning portion 6 of the disc tray 2b is held on the disc table 39 and rotated.

Then, the play buttons 54, 55, 5 are set.
Reference numerals 6 and 57 are configured to have a light emitting element, and are configured to emit light until the recording operation and / or the reproducing operation corresponding to this operation is released by being pressed. Good.

Then, in the disc player device, the control circuit 60 controls the disc table 39.
While holding the recording disc 101, the disc trays 2a and 2b are set to the unloading position, and the disc trays 2a and 2b of the disc table 39 corresponding to the height position of the disc table 39 at this time. Disk positioning parts 5, 6 on the side corresponding to the position
In addition, when another recording disk 101 is placed, returning the disk trays 2a and 2b to the loading position is prohibited.

That is, as shown in the flow chart of FIG. 21, when the control circuit 60 starts operation in step st17, in step st18, it is determined whether or not any of the disc trays 2a and 2b has been set to the unloading position. To determine. If any of the disc trays 2a and 2b is in the unloading position, the process proceeds to step st19, and if none of the disc trays 2a and 2b is in the unloading position, the process proceeds to step st33 and returns.

The control circuit 60 controls the step st1.
In step 9, it is determined whether the disc tray at the unloading position is the disc tray on which the recording disc 101 held by the disc table 39 is placed. The disc tray at the unloading position is the disc table 39.
If it is the disc tray on which the recording disc 101 held on the disc table has been placed, the process proceeds to step st20, and the disc tray must be the disc tray on which the recording disc 101 held on the disc table 39 is placed. If so, the process proceeds to step st30.

In step st20, the control circuit 60 detects whether or not the recording disc 101 is placed in the first disc positioning recess 5 of the disc tray in the unloading position. The determination is made based on the detection signal sent from the circuit 61. If the recording disc 101 is placed in the first disc positioning recess 5 of the disc tray, the process proceeds to step st21 and the first disc positioning recess 5 is performed.
If the recording disk 101 is not placed in step ST22, the process proceeds to step st22.

In step st21, the control circuit 60 detects whether or not the recording disc 101 is placed in the second disc positioning recess 6 of the disc tray at the unloading position. The determination is made based on the detection signal sent from the circuit 61. If the recording disc 101 is placed in the second disc positioning recess 6 of the disc tray, the process proceeds to step st23 and the second disc positioning recess 6 is performed.
If the recording disk 101 is not placed in step ST24, the process proceeds to step st24.

On the other hand, also in step st22,
The control circuit 60 determines whether or not the recording disc 101 is placed in the second disc positioning recess 6 of the disc tray which is in the unloading position, based on a detection signal sent from the detection circuit 61. To determine. Here, if the recording disc 101 is placed in the second disc positioning recess 6 of the disc tray, the process proceeds to step st25, and the recording disc 101 is placed in the second disc positioning recess 6. If not, the process proceeds to step st26.

At step st23, the control circuit 60 sets the disc presence / absence determination bit to "1".
1 ”is set, and the process proceeds to step st27. In the step st24, the control circuit 60 sets "10" as the disc presence / absence determination bit, and the step st
Proceed to 27. Further, in the above step st25,
The control circuit 60 uses the disc presence / absence determination bit as follows.
"01" is set, and the process proceeds to step st27. further,
In step st26, the control circuit 60
Sets "00" as the disc presence / absence determination bit, and proceeds to step st27.

In step st27, the control circuit 60 sets the performance determination bit, and in step st27.
Proceed to 28. This performance determination bit is used for the control circuit 60.
As a result, the recording disk 101 placed in the first disk positioning recess 5 of the disk tray in the unloading position is transferred to the disk table 39.
If the recording disc 101 is placed on the disc table 3 or is being reproduced, the recording disc 101 placed in the second disc positioning concave portion 6 of the disc tray is "10".
9 is set, or is set to "01" when reproducing.

In step st28, the disc presence / absence determination bit and the performance determination bit are ANDed.
(AND) determination is performed, and the process proceeds to step st13. That is, the disc presence / absence determination bit is "11" or "10" and the performance determination bit is "10", or
When the disc presence / absence determination bit is "11" or "01" and the performance determination bit is "01", the AND determination result is "1".
The ND determination result is “0”. The fact that the AND determination result is "1" means that the disc table 39 holding the recording disc 101 is located at the position of the disc positioning portions 5 and 6 of the disc tray set to the unloading position. It is shown that another recording disk 101 is placed in the disk positioning recesses 5 and 6 on the corresponding side.

In step st29, the control circuit 60 determines the result of the AND determination. If the result of the AND determination is "1", the above step st2
Returning to 0, if the result of the AND determination is “0”, the process proceeds to step st30.

At step st30, the control circuit 60 causes the open / close buttons 52 and 53 to be opened.
It is determined whether any of the above has been operated. If any of the open / close buttons 52 and 53 is operated, the operation proceeds to step st31, and if neither of the open / close buttons 52 and 53 is operated, the operation proceeds to step st32 and returns.

At step st31, the control circuit 60 causes the open / close buttons 52 and 53 to be opened.
Depending on the operation for the above-mentioned disc trays 2a, 2
b is moved to the stock position or the loading position, the process proceeds to step st32 and returns.

Therefore, in the control circuit 60, the sub-chassis 31 is set to the first position, and the recording disc 101 placed on the upper disc tray 2a is placed on the disc table 39. When the upper disk tray 2a is set to the unloading position while being placed, and the photocoupler 44 detects that the recording disk 101 is placed on the first disk positioning portion 5, The upper disc tray 2a is not moved to the loading position. Also,
In the control circuit 60, the sub chassis 31 has the second
When the recording disc 101 placed on the upper disc tray 2a is placed on the disc table 39, the upper disc tray 2a is set to the unloading position, Second
When the photocoupler 44 detects that the recording disc 101 is placed on the disc positioning portion 6, the upper disc tray 2a is not moved to the loading position.

In the control circuit 60, the sub-chassis 31 is set to the first position, and the recording disc 101 placed on the lower disc tray 2b is placed on the disc table 39. When the photo coupler 44 detects that the lower disc tray 2b is set to the unloading position and the recording disc 101 is placed on the first disc positioning portion 5, the lower disc tray 2b is set to the unloading position. Disc tray 2b
Does not move to the loading position. Further, the control circuit 60 is configured such that the sub-chassis 31 is at the second position and the recording disc 101 placed on the lower disc tray 2b on the disc table 39.
When the disc is placed, the lower disc tray 2b
Is set to the unloading position, and when the photocoupler 44 detects that the recording disc 101 is placed on the second disc positioning portion 6,
The lower disc tray 2b is not moved to the loading position.

As described above, this disc player device has two disc trays 2 in the upper and lower stages.
The configuration is not limited to having a and 2b, and may be a configuration having three or more stages of disc trays.

[0097]

As described above, in the disc player device according to the present invention, there is provided the first moving operation means for moving the sub-chassis provided with the disc table and the pickup device in the lateral and vertical directions. The control means for controlling the operation of the disk tray having the plurality of disk positioning recesses and the second moving operation means for moving the disk tray in the front-back direction between the loading position and the unloading position on the front side of the loading position, When the sub-chassis is being lowered, it is possible to move the disc tray from the loading position to the unloading position and from the unloading position to the loading position, and raise the sub-chassis. The disc tray is It is possible to move it from the loading position to the unloading position, the sub-chassis is raised, and it is detected by the detecting means that there is no recording disk in the disk positioning recess corresponding to the position of the disk table. When you are
It is possible to move the disc tray from the unloading position to the loading position,
The disc tray is moved from the unloading position to the loading position when the detection means detects that the sub-chassis is raised and the recording disc is present in the disc positioning recess corresponding to the position of the disc table. It is prohibited to move.

Therefore, the control means enables continuous recording and / or reproducing of information signals on a plurality of recording discs, and recording and / or reproducing of one recording disc on the disc tray. It is possible to exchange another recording disk on the disk tray during the operation.

Further, in the disc player device according to the present invention, a first moving operation means for moving the sub-chassis provided with the disc table and the pickup device in the lateral direction and the vertical direction, and a plurality of disc positioning devices. Second disc trays each having a concave portion and arranged in a stacked manner so as to be stacked on top of each other independently in the front-back direction between a loading position and an unloading position on the front side of the loading position. Control means for controlling the operation with the moving operation means for moving the disc trays between the stock position and the unloading position and selectively moving one disc tray to the loading position. A recording disc placed in one of the disc positioning recesses on the lever disc tray. Can be placed on the disc table, and the one disc tray having a recording disc placed on the disc table can be returned to the stock position and the unloading position. Further, when it is detected by the detecting means that there is no other recording disk in the disk positioning recess in which the recording disk mounted on the disk table is mounted, the one disk tray is When it is detected by the detection means that another recording disk is present in the disk positioning recess where the recording disk mounted on the disk table was mounted, it is possible to return to the loading position, Returning the one disc tray to the loading position is prohibited.

Therefore, the control means enables continuous recording and / or reproducing of information signals on a plurality of recording discs, and recording and / or recording on one recording disc on one disc tray. It is possible to exchange the other recording disc on the one disc tray and the disc on the other disc tray during reproduction.

In each of the disc player devices, the disc positioning recesses in the disc tray need not be arranged in the depth direction of the disc player device, but may be arranged in the lateral direction. Therefore, this disc player device can be constructed so that the depth dimension substantially corresponds to the diameter of the recording disc.

That is, according to the present invention, it is possible to continuously record and / or reproduce information signals on a plurality of recording disks without increasing the size of the apparatus.
Further, while recording and / or reproducing one recording disc, another recording disc can be exchanged, and continuous recording discs with a number equal to or larger than the number of recording discs that can be loaded at one time can be continuously performed. It is possible to provide a disc player device capable of recording and / or reproducing.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a disc player device according to the present invention.

FIG. 2 is a perspective view showing a state where the disc player is in the unloading position in the disc player device.

FIG. 3 is a perspective view showing a configuration of a disc tray and a mechanism for moving and operating the disc tray in the disc player device.

FIG. 4 is a perspective view showing a configuration of a mechanism for moving and operating a sub chassis and a mechanism for chucking a recording disc in the disc player device.

FIG. 5 is a perspective view showing a configuration of a mechanism for moving and operating a disc tray, a sub chassis, a disc tray, and the like in the disc player device.

FIG. 6 is a plan view showing a configuration of the disc tray.

FIG. 7 is a perspective view showing a configuration of a sub-chassis and a mechanism for moving and operating the sub-chassis in the disc player device.

FIG. 8 is a longitudinal sectional view of an essential part showing a state where a recording disc is held in the disc player device.

FIG. 9 is a longitudinal cross-sectional view of essential parts showing a state in which the recording disc is held and the disc tray is in the unloading position in the disc player device.

FIG. 10 is an enlarged front view of an essential part showing the configuration of the display unit in the disc player device.

FIG. 11 is an enlarged longitudinal sectional view of an essential part showing the configuration of the essential part of the disc tray in the disc player device.

FIG. 12 is another example of the configuration of the disc player device according to the present invention, and is a perspective view showing a state in which the upper disc tray is in the unloading position.

FIG. 13 is a perspective view showing the disc player device shown in FIG. 12 in a state where the lower disc tray is in the unloading position.

14 is a perspective view showing a configuration of a disc tray and a mechanism for moving and operating the disc tray in the disc player device shown in FIG.

15 is a perspective view showing a configuration of a mechanism for moving and operating a disc tray, a sub chassis, a disc tray and the like in the disc player device shown in FIG.

16 is a plan view showing a moving state of a disc tray in the disc player device shown in FIG.

FIG. 17 is a vertical cross-sectional view showing a state where the optical disc mounted on the upper disc tray in the disc player device shown in FIG. 12 is moved to the mounting position.

18 is a vertical cross-sectional view showing a state where the optical disc mounted in the lower disc tray in the disc player device shown in FIG. 12 has been moved to the mounting position.

FIG. 19 is a block diagram showing a configuration of a disc player device according to the present invention.

20 is a flowchart illustrating an operation of the disc player device shown in FIG.

21 is a flowchart explaining the operation of the disc player device shown in FIG.

[Explanation of symbols]

 2 ... Disc tray 2a ... Upper disc tray 2b ... Lower disc tray 5 ...・ ・ ・ ・ ・ ・ ・ ・ First disk positioning part 6 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Second disk positioning part 8 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Large diameter disk Positioning recess 9 ・ ・ ・ ・ ・ ・ ・ Small diameter disk positioning recess 10 ・ ・ ・ ・ ・ ・ Notch 13 ・ ・ ・ ・ ・ ・ Tray Moving motor 13a: upper tray moving motor 13b: lower tray moving motor 37: Sub chassis movement Motor 39 ..... Disk table 40 .................. Optical pickup device 10 ............ recording disk

Claims (2)

[Claims] 1. A sub including a disk table which is rotationally operated by a rotary drive means, and a pickup device which is located on the rear side of the disk table and is operated to move in the front-rear direction toward and away from the disk table. A chassis, a first moving operation means for moving the sub-chassis in a lateral direction and an up-down direction between one side position and the other side position, and a plurality of disc positioning recesses formed on an upper surface portion, A disc tray having a plurality of notches extending from the central portion to the rear edge portion of each of the disc positioning recesses and arranged at the upper side position of the sub chassis, and the disc tray, A loading position with the center of the disk facing the disc table, and an unloading position in front of the loading position. Second movement operation in the front-back direction
Movement operating means, a plurality of detecting means arranged corresponding to each of the disc positioning recesses and detecting the presence or absence of a recording disc in the corresponding disc positioning recess, and operations of the first and second movement operating means. A control means for controlling the disc tray, the control means for moving the disc tray from the loading position to the unloading position and from the unloading position to the loading position when the sub-chassis is being lowered. When the sub-chassis is raised, the disc tray can be moved from the loading position to the unloading position to raise the sub-chassis. In the disc positioning recess corresponding to the position of When it is detected by the detection means that there is no recording disk, the disk tray can be moved from the unloading position to the loading position, and the sub-chassis is lifted. A disc player device in which movement of the disc tray from the unloading position to the loading position is prohibited when the presence of the recording disc in the disc positioning recess corresponding to the position is detected by the detecting means. 2. A sub-device provided with a disk table which is rotationally operated by a rotary drive means, and a pickup device which is located on the rear side of the disk table and is operated to move in the front-rear direction to move toward and away from the disk table. A chassis, a first moving operation means for moving the sub-chassis in a lateral direction and an up-and-down direction between one side position and the other side position, and a plurality of disk positioning recesses are formed on the upper surface part. A plurality of disc trays each having a plurality of notches extending from a central portion of each of the disc positioning concave portions to a rear edge portion thereof, the plurality of disc trays being arranged in a stacked manner at the upper side position of the sub chassis, For each disc tray, the loading position in which the center of one of the disc positioning recesses faces the disc table and the loading position Second moving operation means for independently moving in the front-rear direction between the stock position on the front side of the position and the unloading on the front side of the stock position, and each disc of each disc tray. A plurality of detecting means arranged corresponding to the positioning recesses for detecting the presence or absence of the recording disk in the corresponding disk positioning recesses; and a control means for controlling the operation of the first and second moving operation means, The control means moves each of the disc trays between the stock position and the unloading position, and selectively moves one disc tray to the loading position so that any disc of the disc trays is moved. It becomes possible to place the recording disc placed in the positioning recess on the disc table. Further, it is possible to return the one disc tray on which the recording disc is placed on the disc table to the stock position and the unloading position, and further, the recording placed on the disc table. When it is detected by the detecting means that there is no other recording disk in the disk positioning recess in which the disk was placed, the one disk tray can be returned to the loading position, and the disk table can be returned. When it is detected by the detection means that another recording disk is present in the disk positioning recess where the recording disk mounted on the disk was mounted, the one disk tray may be returned to the loading position. Forbidden disc player device.