JPH0457248A - Disc regenerator - Google Patents

Abstract

PURPOSE: To shorten the time required for taking out a disk by providing a rotation driving part for rotationally driving a disk housing part in which the plural disks are arranged and housed in the doughnut state, and constituting the part so as to take out a desired disk housed therein. CONSTITUTION: A rotary frame A is arranged on the center part of a main body H, and on the outer peripheral part, disk playing part B and a disk exchanging part C are arranged. These parts B and C are arranged so as to face toward the outer periphery from the inner peripheral side. On the main body H, an exit (not shown in the figure) for exchanging the disk is provided on the place coincident with the outer peripheral direction from the inside exchanging part C. The rotary frame A consists of a rotary plate 2 rotating around the center of a central hub 1, a display base 3 mounted integrally with the upper surface of this rotary plate 2 and radial grooves 5 engraved on the upper and lower parts of the display base 3. A specified disk D is taken out by a disk mounting mechanism when the specified disk D is moved to the taking out position of a disk taking out mechanism. The disk D is reproduced by the reproducing part B. Thus, the desired disk D is taken out by rotationally driving the disk housing part, then the time required for taking out the disk is shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention generally relates to a disc playback device, and particularly relates to a disc playback device that plays back signals recorded on a plurality of stored discs.

[Prior Art] Video disc players, compact disc players, compact disc ROMs, and the like are known as laser disc players that read video signals or audio signals recorded using a laser. Most laser disc players are of a type in which the user inserts the disc of their choice and then plays.If the user wishes to play another disc, the player must first stop the player and replace the disc. There is an inconvenience in that the player must be operated again after the playback is completed.

On the other hand, an automatic continuous play one-type automatic electric storage system called a jukebox has been put into practical use. This automatic energy storage is made of ordinary synthetic resin disks (
In other words, a large number of records (records) are stored in the main body, and when the user arbitrarily selects a disc from the outside, the device automatically moves the disc to the playing position and plays it.

[Problems to be Solved by the Invention] However, since the jukebox described above has a structure in which a large number of discs are displayed and stored on multiple shelves on the second floor or higher, it is difficult to take out and store discs for selection. The movements of the mechanical operating parts required for redisplaying the items are complicated. That is, the operating section must move in the X and Y directions in the disk display section, and a stop position must be designated for each coordinate.

Furthermore, since the distance to move the disc to the play location is long, it takes time to access the disc. That is, conventional jukeboxes require a complicated mechanical structure to take out and store discs, and it takes time to access them.

This invention has been made to solve the above-mentioned problems, and one purpose thereof is to simplify the structure for taking out and playing a designated disc in a disc playback device. Another purpose is to shorten the time required to play a specified disc in a disc playback device.

[Means for Solving the Problems] A disc playback device according to the present invention includes a rotatable disc storage unit that arranges and stores a plurality of discs in a donut shape, and a disc ejection mechanism that takes out the discs stored in the disc storage unit. and a rotary drive unit that rotates the disc storage section in response to a disc designation signal given from the outside so that the disc designated by the disc designation signal moves to the ejection position of the disc ejection mechanism; and a reproducing unit that reproduces signals recorded on the disc.

[Operation] In the disc playback device according to the present invention, a plurality of discs are arranged and stored in a donut shape in the disc storage section. The rotation drive unit rotates the disc storage unit so that a disc specified from the outside is moved to a take-out position of the disc take-out mechanism. When the specified disc moves to the ejecting position of the disc ejecting mechanism, the disc ejecting mechanism
Ejects the specified disk. The ejected disc is played back by the playback section. In this way, a desired disk can be taken out by rotating the disk storage section, thereby simplifying its mechanical structure. Additionally, the time required to remove the disk has been shortened as the mechanical structure has been simplified.

[Embodiment of the Invention] FIG. 1 is a perspective view of a disc playback device showing an embodiment of the invention. Referring to FIG. 1, a rotary frame A is arranged at the center of a main body H, and two disc play parts B and a disc exchange part C are arranged at its outer peripheral part.

The disk pre part B and the replacement part C are arranged from the inner circumference side toward the outer circumference. The main body H is provided with an outlet (not shown) for exchanging the disk at a location that coincides with the inner exchanging portion C in the outer circumferential direction.

The rotating frame A consists of a rotating plate 2 that rotates around a central hub 1, a display stand 3 integrally attached to the upper surface of the rotating plate 2, and radial grooves 5 carved on the top and bottom of the display stand 3. Become. A positioning opening 6 and a gear 7 for determining the address of the radiation 1115 are provided on the outer periphery of the rotary plate 2 . A drive mechanism 8 that meshes with the gear 7 and rotates the rotary plate 2 is arranged on the outer peripheral side of the rotary frame A.

As shown in FIG. 2, a bending spring 9 is installed on the outer peripheral side below the radiation 11!5 so that the disk D can be held stably.
is arranged to prevent the disc D from suddenly jumping out of the display stand 3.

With this configuration, the disc D inserted into the radial groove 5 of the display stand 3 is sent to the disc plate part B by the drive mechanism 8 driving the rotary plate 2. In this process, the selection of the disk D is based on the designation by an electrical signal from the user, and in this case, the designation signal is one of the addresses attached to each radiation groove 5. This will be done through an operation that specifies the .

The drive mechanism 8 rotates the rotary plate while counting the positioning openings 6 until the disk D corresponding to the designated address is sent to the disk plate part B. Therefore, although not shown, the drive mechanism 8 includes an electronic circuit for sensing and counting the positioning apertures 6 and a motor controlled by this electronic circuit.

FIG. 2 is a structural diagram showing the interlocking structure of the disk play part B and the exchange part C shown in FIG.

Referring to FIG. 2, a disk plate part B is arranged around a rotating frame A, and a replacement part C is arranged on the inner periphery of the rotating frame A. A part B of the disc plate arranged around the outer periphery of the rotating frame A is a part of the display stand 3.
a chassis 11 having an extension portion 10 extending toward the inner circumferential side;
A loading lever 12 and an unloading lever 13 are disposed symmetrically with each other in the extension part 10 and are synchronously interlocked.
It is equipped with

FIG. 3 is a structural diagram showing the structure of the disc play part B. FIG. Referring to FIG. 3, loading lever 12 and unloading lever 13 are held in chassis 11 so as to be rotatable about shafts 14 and 15, respectively. The upper ends of these levers 12 and 13 are connected to a tension spring 16, so that the levers 12 and 13 are synchronously interlocked with each other. The levers 12 and 13 are synchronously interlocked by an actuation lever 17 disposed on the rear side of the chassis 11. In addition, the operating lever 1
7 includes a rack gear 18 at its lower end that is driven by a motor (not shown). When the motor drives the operating lever 17 in the direction of arrow "A" in the drawing, the interlocking pin 19a attached to the upper end of the loading lever 12 is pushed by the tip of the operating lever 17, and the loading lever 12 moves in the drawing with the shaft 14 as the base point. is rotated in the direction of the arrow “mouth”,
The disk D stored in the display stand 3 is pushed into the inside of the chassis 11. In this case, unloading lever 1
3 are also synchronously rotated in the direction of the arrow ``mouth'' through the tension spring 16 connected to their upper ends, so that the disk D guided inside the chassis 11 is not interfered with.

On the contrary, when the operating lever 17 is advanced in the opposite direction of arrow "A" in the drawing, the unloading lever 1
The interlocking pin 19b of No. 3 is pushed and begins to rotate in the opposite direction of the arrow "mouth" about the shaft 15, and the tension spring No. 1
6, the loading lever 12 also pivots in the opposite direction of the arrow "mouth".

It is preferable that the movement of the operating lever 17 be precisely controlled by a limit switch or the rotational speed of a motor so that both levers 12 and 13 can be accurately synchronously interlocked.

A pair of guide channels 20 and 21 for receiving the guided disc D are arranged one above the other at positions corresponding to the radial grooves 5 of the display stand 3 inside the chassis 11. Guide channels 20 and 21 are not provided in a fixed manner, but are swingably held by fixed shafts 22 and 23, respectively. On the other hand, guide channels 20 and 2
A ring 25 that receives the tensile force of a spring 24 is installed between the ends of the guide channels 20 and 21 in the diagonal direction, and changes the posture of both guide channels 20 and 21 in conjunction with the movement of a slider, which will be described later.

Inside the chassis 11 there are guide channels 20 and 2.
A clamper 26 is arranged so that the disk D guided along the disk 1 is accurately set on a laser pickup to be described later, and a slider 27 is provided below the clamper 26. Further, a laser pickup 28 is arranged on the opposite side of the clamper 26 with the chassis 11 as a boundary.

FIG. 4 is an enlarged structural diagram of a part of the disk play part B shown in FIG. 3, viewed from above. The ends of the clamper 26 and the laser pickup 28 are connected to the shaft 2 as shown in FIG.
They are connected like nippers and are provided obliquely in mutually symmetrical directions with respect to the chassis 11 surface so that they are close to each other or remote from each other by 9. Therefore, when the clamper 26 and the laser pickup 28 overlap each other around the chassis 11, the disk D is sandwiched between them, and the laser pickup 28 remains in this state.
plays Disc D. The movement of the clamper 26 is started by the slider 27, and also by the laser pickup 2.
8 movement is initiated by the other slider 30. The sliders 27 and 30 are provided so as to be movable simultaneously with respect to the chassis 11, and can be slid along the surface of the chassis 11 by a motor (not shown) in the same manner as the operating lever 17 is driven. There is.

Next, the clamper 26. The interlocking relationship between the laser pickup 28 and the slider 27, 30 will be explained. The sliders 27 and 30 have predetermined cam grooves 31 and 32, respectively, and the cam roll 33 of the clamper 26 moves along the cam groove 31 of the slider 27. The cam roll 34 moves. The movement of the sliders 27 and 30 causes the clamper 26 and the laser pickup 28 to be positioned close to or apart from each other. In particular, the slider 30 has a third groove in addition to the cam groove 32.
As shown in the figure, a side cam groove 35 is provided at the lower right side.

A cam roll 36 provided at the lower end of the link 25 described above is inserted into this side cam groove 35, and the slider 3
0 begins to operate, the link 25 is located at the terminal end 35a of the side cam groove 35, and the link 25 is pulled slightly downward. As a result, the upper and lower guide channels 20 and 21 are pivoted about the axes 22 and 23, respectively, in a direction connected to the link 25, and the diameter on the exit side is narrowed until the disc D is held by the clamper 26, and the disc D will no longer be reversed.

FIG. 5 is a structural diagram of the exchange section C shown in FIG. 1. Referring to FIG. 5, the replacement part C includes a chassis 40 extending to the outer circumferential side of the display stand 3 fixedly held at the center of the hub 1.
The above-mentioned loading lever 12 or unloading lever 1 is pivotably supported by the chassis 40.
3 and an exchange lever 42 which operates similarly to 3. Regarding the operation of the exchange lever 42, an interlocking lever (not shown) that is reciprocated by a motor (not shown) is provided on the back side of the chassis 40 in the same way as the disk plate part B described above, and an interlocking pin on the upper end side of the interlocking lever (not shown) is provided on the back side of the chassis 40 43 swings back and forth, the exchange lever 42 swings back and forth in the direction of arrow "C" in the drawings with the fixed shaft 43 as a starting point. Therefore, the disc D housed in the display stand 3 is pushed out.

The disc playback device configured as described above operates as follows. It is assumed that a large number of disks D are previously displayed and stored in the display stand 3 of the rotating frame A through an outlet provided in the main body H.

First, the user uses a keyboard etc. to rotate the rotating frame A.
When a desired one of the discs D stored in the display stand 3 is selected, the drive mechanism 8 rotates the rotary plate 2 until the selected disc D is sent to the disc plate part B. . At this time, the drive mechanism 8 counts the positioning openings 6 formed on the outer periphery of the rotating plate 2, and the selected disk D is accurately positioned at the position of the disk plate part B.

The actuation of the drive mechanism 8 is terminated, which means that the selected disk D is located in the disk plate part 8, and in response to this signal, the actuating lever 17 shown in FIG. is slid by the motor, and then the loading lever 12 is rotated and interlocked. Thereby, the selected disc D from the display stand 3 is guided between the guide channels 20 and 21 along the bending spring 9. In this process, when the unloading lever 13 is activated, the tension spring 1
6 and pivot together in an interlocking manner so as not to impede the path of the disc D guided into the guide channels 20 and 21 to move to the right as shown in FIG.

When the disk D is guided into the guide channels 20 and 21 by the loading lever 12, the sliders 27 and 30 slide along the surface of the chassis 11. Here, as a means for detecting that the disk D has been guided into the guide channels 20 and 21, it is preferable to arrange a sensor or a limit switch at a predetermined position on the chassis 11.

When the sliders 27 and 30 slide, the clamper 26 and the laser pickup 28, which were located obliquely in a direction symmetrical to the chassis 11 as shown by the dashed line in FIG. 32 along each cam roll 33
and 34 are brought close to each other by transmission, and as a result, the disk D is sandwiched between the clamper 26 and the laser pickup 28. In this process, when the slider 30 starts operating, the link 25 also moves downward along the cam groove 35 on its side, and the disk D moves between the clamper 26 and the laser pickup 28.
guide channels 20 and 21 before being sandwiched between
narrows the diameter on the exit side, and the disk D will no longer rotate in reverse. When the above-described operation is completed, the disc D is reproduced by the laser pickup 28.

When the play is finished, sliders 27 and 30 return to their original positions, and links 25. The clamper 26 and laser pickup 28 also return to their original positions. At the end of this process, the operating lever 17 also returns to its original position, and the unloading lever 13 pushes the disc D into the radial groove 5 of the display stand 3 at the corresponding address. Next, the other disk D
Once selected, the above process is repeated, allowing continuous play.

In such an automatic player, when exchanging the disc D housed in the rotating frame A, the user specifies the address of the disc D to be exchanged. The rotating frame A rotates to guide the disk D at the corresponding address to the exchange section C, and then the exchange lever 4 shown in FIG.
2 rotates and places the disc D to be replaced on the display stand 3.
extrude outside. As already explained, since the exchange part C is aligned with the outlet of the main body H, the extruded disk D will immediately come out of the main body H.

For example, a compact disc (CD) or a video disc can be used as the disc to be stored in the disc playback device shown in FIG. Furthermore,
It is pointed out that this disc playback device can be used for various purposes by storing discs on which other types of signals are recorded.

It should be noted that those skilled in the art will understand that the technology necessary to control the disc playback device shown in FIG. 1 can be realized by utilizing electronic microcomputer technology.

[Effects of the Invention] As described above, according to the present invention, a rotary drive unit is provided which rotates and drives a disc storage unit in which a plurality of discs are arranged and stored in a donut shape, and a desired stored disc is taken out. This structure simplifies the structure necessary for ejecting and reproducing a disc, and shortens the time required for ejecting the disc.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a disc playback device showing an embodiment of the present invention. FIG. 2 is a structural diagram showing the interlocking structure of a part of the disc plate and a replacement part shown in FIG. 1. FIG. 3 is a structural diagram showing the structure of a part of the disc play shown in FIG. 2. FIG. FIG. 4 is an enlarged structural diagram of a portion of the disk play shown in FIG. 3, viewed from above. Figure 5 shows
FIG. 2 is a structural diagram of the exchange section shown in FIG. 1; In the figure, A is a rotating frame, B is a part of a disc plate, C is a replacement part, D is a disc, and H is a main body. Patent applicant: Haitai Electronics Co., Ltd.

Claims (3)

[Claims] (1) A disk playback device that plays back signals recorded on a plurality of disks, comprising: a rotatable disk storage section that arranges and stores the plurality of disks in a donut shape; and a part of the disk storage section. a disc ejecting mechanism provided adjacently for ejecting a disc stored in the disc storage section; and a disc ejecting mechanism for ejecting a disc designated by the disc designation signal from the outside in response to a disc designation signal applied from the outside. a rotary drive unit that rotationally drives the disc storage unit to move the disc storage unit to a position, and the disc ejecting mechanism is configured to remove the designated disc when the designated disc moves to the ejecting position of the disc ejecting mechanism. and a reproducing unit provided adjacent to the disc ejecting mechanism and reproducing signals recorded on the disc ejected by the disc ejecting mechanism. (2) The signals recorded on the plurality of disks are
The disc playback device according to claim 1, further comprising an audible sound signal, and wherein the playback section plays back the audible sound signal recorded on the disc ejected by the disc ejection mechanism. (3) A disk playback device that plays back signals recorded on a plurality of disks, comprising: a disk storage section that stores the plurality of disks; a disk ejection mechanism that takes out the disks stored in the disk storage section; a drive unit that drives the disc storage section in response to a disc designation signal given from the outside so that the disc designated by the disc designation signal moves to the ejection position of the disc ejection mechanism, the disc ejection mechanism; a playback unit that takes out the designated disc when the designated disc moves to the ejecting position of the disc ejecting mechanism and reproduces the signal recorded on the disc ejected by the disc ejecting mechanism; disc playback device, including.