JPS613357A - Automatic disk changer - Google Patents

Abstract

PURPOSE:To prevent double sheets feeding of disk surely by simple constituion by proving a restraining section that checks entrance of other disk at the entrance and exit of a disk playing section. CONSTITUTION:When transferring a disk 201 from a disk storing section to a playing section, the disk 201 came out from a tray is brought into contact with a restraining member 651B provided at the middle of the entrance and exit 651 of the disk. The restraining member 651B checks entrance of other disk and returns it to the tray. Thus, double sheets feeding of the disk can be prevented surely by simple constitution.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a disc autochanger device suitable for, for example, CDs (optical compact discs).

[Technical background of the invention and its problems]

Recently, in the field of audio equipment, AD (digital audio disc) playback devices that utilize PCM (pulse code modulation) technology have been developed in order to achieve as high fidelity playback as possible. Among these, the CD system is rapidly becoming popular.

In other words, this CD system is a transparent resin disc with a diameter of 12 mm and a thickness of 1.2111 mm, and a digital (PCM) disc.
) The disk is coated with a metal thin film that forms bits (irregularities that give different light reflectances depending on the 1"II□") corresponding to the converted data, and is processed using the CLV (constant linear velocity) method. It rotates at a variable rotational speed of approximately 500 to 200 rpm, and incorporates a semiconductor and a photoelectric conversion element.
The data is reproduced using a linear tracking method.

In this case, CDs have a huge amount of information recorded on one side, allowing for approximately one hour of stereo playback, and are superior to conventional analog discs in terms of playback characteristics and recording density. It has been established in principle that it can be made significantly superior to the conventional method.

By the way, as a way to take advantage of the excellent features of CDs, for example, it is being considered that they can be used in professional multi-disc automatic performance devices.

That is, this corresponds to the so-called ``JakeDex'' or karaoke apparatus which are also put into practical use in the case of analog discs, and can be realized by a disc autochanger apparatus.

However, this type of disc autochanger device, which has been known in the past, has a complex structure and large size, partly because it is intended for analog discs, and has problems in terms of operability. was there. In addition, due to the need for reliable operation, the number of discs that can be stored cannot be increased that much, and the speed at which discs can be replaced cannot be made that fast.

Therefore, there are many problems in applying the conventional disc autochanger device for CDs as described above, and it is an urgent issue to develop a disc autochanger device suitable for CDs. It was said to be.

Incidentally, this situation is the same in the case of laser video discs, and also in the case of application to optical disc file systems that have recently been put into practical use as part of so-called electronic file conversion.

[Purpose of the invention]

This invention has been made in view of the above circumstances, and provides an extremely good disc autochanger device that has a simple configuration and can promote reliable operation so as to increase the number of discs that can be stored. The purpose is to

[Summary of the invention]

That is, the present invention provides a disc autochanger device that automatically selects a predetermined disc from a tray and can supply it to a disc playing section for replacement, and prevents other unselected discs from entering the disc entrance/exit section of the disc playing section. The initial objective was achieved by providing a restricting section to prevent this.

[Embodiments of the invention]

Hereinafter, as an embodiment of the present invention, a case where the present invention is applied to a multi-disc automatic performance apparatus for CDs will be described in detail with reference to the drawings.

FIG. 1 shows a front external view of a cabinet 100 that houses a disc autochanger mechanism, which will be described later. 10 is a main tray storage area that can accommodate a large number of discs (60 discs in this case); This is an auxiliary tray storage section that serves as a plus-one tray to allow a small number of disks (one in this case) to be freely inserted and removed.

In addition, 103 is an operation section for specifying performance status such as start, pause, cancellation of play, and resetting, 1o4 is a key operation section and its display section that allows reservation of up to 5 songs in this case, 105
is the pitch (ten/) control and key control display of the song, 106 is the signal level display, 1o7
108 is a display section for the song currently being played, and 109 is a display section for the next song to be played.

Note that 110 is a headphone plug insertion part, 11 is a remote control plug insertion part, and 112 is an operation part for inserting and removing the auxiliary tray.

2 and 3 show a perspective view and a plan view of the disk autochain mechanism taken out from the cabinet 100 shown in FIG. The main tray mechanism section 200.23 is mounted between the main tray mechanisms 200. It has an auxiliary tray mechanism section 300 and a disc search performance mechanism section 400.

To roughly explain the operation of such an autochanger mechanism, the main tray mechanism section 200 has a predetermined number of disks 201 stored vertically at a predetermined pitch in disk storage grooves 203 of a tray body 202, which will be described later. or auxiliary tray mechanism section 5OO), the disk search performance mechanism section 400 first searches for the target disk 201 and removes the disk 201 by moving in the directions of arrows A and B in the figure based on the disk access information. After the disc 201 is played, the disc 201 is put into the main tray mechanism section 20.
0 or the original position on the auxiliary tray mechanism section SOO, the same operation as described above is repeated based on the next disk access information.

In this case, the main tray mechanism section 2θ0 has its tray body 202 made of synthetic resin detachably supported on left and right tray support stands 253 and 254 erected on the main chassis 121.

Further, the auxiliary tray mechanism section 300 is supported by an auxiliary tray drive mechanism 350 so that the auxiliary tray 30 can move in and out in the directions of arrows C and D in the figure.

Further, the disc search performance mechanism section 400 is constructed by integrating a disc search section 500, a disk transfer mechanism section 600, and a disk performance mechanism section 700 into a unit, and is supported by the main chassis 12. It is moved in the directions of arrows A and B by the driving force of the search wire 403 using the rail 40 and guide shaft 402 as guides.

Note that 404 in FIG. 3 is a synthetic resin address plate supported on the main chassis 121, and is formed on the tray body 202 of the main tray mechanism section 200. In this case, i9 turns based on a binary system are formed that allow optical detection of absolute addresses in one-to-one correspondence with the 60 disk storage grooves 203.

Next, the details of each of the above parts will be explained in order.

FIG. 4(a) shows a tray main body 202 having a disk storage groove 203 (details of which will be described later) of the 200 main tray mechanisms described above, and a rotatable spring 204 between both sides of the tray main body 202. A supported U-shaped disc hold lever 205, attachment/detachment guide portions 206 similarly formed on both sides, and disc storage groove 203.
60 positioning slits 2 corresponding to each entrance/exit section
07, so that the disk 201 can be moved in and out of the disk storage groove 203 in a substantially perpendicular manner as shown in FIG.

Further, reference numeral 209 in the figure represents a notch provided at each bottom of the disk storage groove 203 for ejecting a disk.

5(a), 5(b), and 5(c) are a perspective view, a partial top view, and a top view showing the disk storage groove 203 in the tray body 202; A pair of partition walls 2081.2 having a predetermined height
The space is partitioned by 08B with substantially the same dimensions as the thickness of the disk 20. That is, partition wall 2081.208B
are connected to each other at their ends, and the disks 201
A regulating section 20 for regulating the position of the cover on one partition wall 208 people facing the label side (the side without recording signals) 201 people.
3A is formed substantially perpendicular to the bottom of the groove.

Then, the optical surface (signal recording surface) 201 of the disk 201
The other partition wall 208B facing B has a regulating portion 203 extending substantially perpendicularly from the bottom of the groove to six dimensions corresponding to the outer peripheral dimensions of the signal area on the disk 201 where no signals are recorded.
B is formed in the circumferential direction, and an inclined part 203C for protecting the disk is formed at the upper end of the regulating part 203B, which is inclined in the relief direction (that is, the direction away from the disk 20). Further, a substantially V-shaped disk positioning holding portion 203D is formed at the connected end portions of the partition walls 2081 and 208B.

Furthermore, in the partition wall 208 of each disk storage groove 203 in the tray main body 202, in the partition wall 208B, the above-mentioned regulating part 20 is provided.
3, it goes without saying that a regulating portion 203B and an inclined portion 203C are formed respectively.6 In other words, in the disk storage 1111203, for example, the disk 201 is stored along the bottom of the groove in the direction of the arrow (K) in the figure. Then, the 201 people on the label side are on one side of the partition wall 2.
08A's regulating section 203 and is regulated, and the outside of the signal area of the signal recording surface 201B slides and moves while being regulated by the regulating section 203B of the other partition wall 2011B.

Therefore, when the disk 20 is moved, the signal recording surface 201B is stored in a protected state without coming into contact with it, and when the storage is completed, the tip end is attached to the holding portion 201B.
In this case, the holding part 203
D indicates that even if the stored disk 201 has an error in the predetermined thickness dimension (1 or 2 CDs in the illustrated case) due to, for example, molding, it is possible to ensure reliable positioning in the stored state. It is now possible.

FIG. 6 is an exploded perspective view for explaining the procedure for attaching and detaching the main tray mechanism section 200 as described above, and when attached, the guide posts 255 and rails 256 provided on the pair of left and right tray supports 253 and 254 are Tray body 202
It is sufficient to insert the attachment/detachment guide portions 206 formed on both sides of the connector in the direction of arrow F in the figure.

However, in this case, before insertion, the disc hold lever 205 is rotated in the direction of the arrow G in the diagram by the biasing force of the spring 204, at the position VC shown by the solid line in the diagram.
This makes it possible to prevent any of the disks 201 from accidentally falling off from the tray main body 202.

During the insertion process in the direction of the arrow F, the disk hold lever 205 has its both end locking portions 257 attached to the tray supports 253 and 254.
259 to the position shown by the chain line in the illustration.
direction and is still locked in the final position in the insertion direction.

When the installation of the main tray mechanism section 200 is completed, the disk hold lever 205 is opened as shown in FIG.
is rotated to a position corresponding to the position indicated by the chain line in FIG. 6, so that the disks 201 stored in the main tray mechanism section 200 can be selectively taken in and out.

When taking out the main tray mechanism section 200 from the main body, first, in order to release the above-mentioned locked state, the disk holder Leno? -205 and press the lever 205 slightly downward, then put your hand on the drawer part 270 formed at the bottom of the tray body 202 and pull it out in the direction of arrow M opposite to the insertion direction. Just do it.

Note that when any of the discs 201 stored in the main tray mechanism section 200 is being played by the disc search performance mechanism section LJ as described later, the main tray mechanism section 200 It is not possible to take it in or take it out.

FIG. 7 shows the auxiliary tray mechanism section 30 in the above embodiment taken out, and in this case, the auxiliary tray 30 is shown pulled out in the direction of arrow C in the figure.

That is, in this case, the auxiliary tray 301 has a single disk storage groove 302 at the front and an auxiliary tray chassis 303 at the rear, and is made of synthetic resin or the like. The chassis 303 is connected to the guide shaft 304 and the lower rail 305, which are arranged vertically on the right side chassis 123, through sliding bearings 306 and 307 and rollers 308, respectively, to the arrows C and D shown in the figure. The rack SO9, which is supported so as to be slidable in the direction and is integrally formed on the back side of the auxiliary tray shear 7303, is connected to the auxiliary tray drive mechanism 360. The auxiliary tray is automatically pulled out and retracted from the main body in response to the first and second operations of the operating section 112 for inserting and removing the auxiliary tray, so that it can be freely inserted and removed as shown in b.

When the auxiliary tray 301 is pulled out as shown in FIG. 7, the disc stop lever 310 is moved to the driving part (
(not shown) to prevent the disk 20 from falling off to the rear. When the auxiliary tray 30 is pulled in the direction of the arrow, the disc stop lever 310 is operated by the drive unit (not shown).
As a result, the disc 20 is moved away from the rear side of the disc storage groove 302 to a position asymmetrical to the disc entrance/exit part, allowing the disc search performance mechanism 400 to take in and take out the disc 20.

In addition, in FIG. 7, the auxiliary tray 301 has a notch 380 for pushing up the disc continuous to the bottom of the above-mentioned disc storage groove 302, and a stepped locking part on one side of the notch 380 for locking the auxiliary tray. A portion 38 is formed.

Here, the partition walls 382 and 382B of the disc storage groove 302 formed in the auxiliary tray 901 are formed in the tray body 202 of the main tray mechanism part 200 described above, with respect to the height of each part. It is assumed that the same consideration is given to the partition walls 208) and 208B.

Further, an entrance/exit part of the disc storage groove 302 formed in the auxiliary tray 301 (rear part in FIG. 7) is formed at the entrance/exit part of the disc storage groove 203 formed in the tray body 202 of the main tray mechanism section 200 described above. It is assumed that a slit (not shown) similar to the positioning slit 207 is formed.

Furthermore, it goes without saying that when the auxiliary tray 301 is pulled out, the path opposite to that described above is followed and the state shown in FIG. 7 is finally reached.

Note that when the disc 201 stored in the auxiliary tray mechanism section SOO is searched and played by the disc search performance mechanism section pooy as described later, the auxiliary tray mechanism section SOO is Tray so1 cannot be taken in or taken out.

Figure 8 shows a conceptual diagram of the equipment inside the disc auto chain as described above.
, ro4. Operation unit 910 including zos, 1oy, etc.
Based on various operation command signals from the microcomputer 1"4, each of the mechanisms 350 and 41J is driven to a predetermined state through a control circuit 920, so that the main tray mechanism or the auxiliary tray mechanism 300 is controlled. This allows a desired disc 201 to be automatically replaced and played.

The display section 930 in FIG. 8 includes display sections 104, 105, 106, 108.degree. 109, etc. as shown in FIG.

Here, from the main tray mechanism section 200 to the disk 201
To explain the disc playing mechanism section 400 that takes out the disc and plays the disc, FIGS. 9 and 10 show the state before and after loading, respectively. That is, numeral 420 in the figure is a mounting structure having a substantially frame shape, and one end of this mounting structure 420 is marked with an arrow A with respect to the tray main body 2o2 (see FIG. 2) constituting the disk search section 500.
, a search wire drive mechanism 530 for moving in the B direction.
And the disk push-up mechanism 510 for pushing up the selected disk 201 is installed. A disk transfer mechanism section 600 is installed on the upper surface of the mounting structure 420 corresponding to the disk push-up mechanism 510 for loading the pushed-up disk 201 and unloading it after the performance is finished. A disc playing mechanism section 700 for playing the disc 201 loaded by the disc transport mechanism section 600 is installed approximately at the center of the mounting structure 420.

Further, a guide hole 421 is formed in the lower surface of the mounting structure 420 at one end thereof, into which the guide shaft 402 (see FIG. 3) is movably fitted and supported, and at the other end, the guide hole 421 is formed to fit and support the guide shaft 402 (see FIG. 3).
01 (see FIG. 3) is formed with a guide portion 422 that is movably fitted and supported. As a result, when the search wire drive mechanism 530 is driven, the mounting structure 420 moves in the directions of arrows A and B by the driving force of the search wire 403 (see figure 3).

Here, the dual sensor part 425 is a part of the photocoupler of group 42sJtiZ in the figure, and this dual sensor part 425 is placed at one end of the mounting structure 420 so as to sandwich the slit 207 of the tray main body 202, as shown in FIG. provided in the department.

This dual sensor part 425 is attached to the slit 2 of the tray body 2θ2 in order to precisely position the mounting structure 420 based on the access information as described above.
Detect the differential with respect to 07. The dual sensor section 425 operates in substantially the same manner with respect to the slit (not shown) of the auxiliary tray 301 to detect the differential movement thereof.

Further, in the figure, 653 is a first detection switch that detects the loading start position (that is, the unloading end position) of the first and second loading sections 610 and 630, and this first detection switch 653 is attached to the mounting Structure 4
A mounting body 654 fixed to the upper end of the guide rail 650, 650 is provided in correspondence with the guide rail 650, 650. The first detection switch 653 detects that the first loading section 610 has moved most in two directions, and stops a loading drive motor (not shown) to complete unloading.

Furthermore, in FIGS. 9 and 10, the mounting groove 42
0, a fixed guide 65 having, for example, a substantially V-shaped disk entrance/exit 651 facing the tray main body 202;
1 is provided. As shown in FIG. 12, this fixed guide 651 has a regulating part 651B for preventing two-disc feeding and a buffering part 651C made of a cushioning material such as a brush or felt for regulating disc protection, for example, to signal the disc 201 entering and exiting. Disk entrance/exit portion 351 facing recording surface 2θIB
placed on one side of the person.

Among these, the regulating part 651B is provided in the middle part of the disc entrance/exit 651 below the approximate center part of the disc 201 of the tray main body 202, as shown in FIG. The maximum circumference of the disk 201 also protrudes inward and extends to a position facing the partition walls 2081, 208B of the tray body 202. The regulating portion 651B is located at the disk entrance/exit port 65.
In the direction of the other side of one person, the bottom of the disc entry/exit slot 651 (i.e., the thickness dimension (1.2 mm) of the disc 201)
(approximately the same interval). Therefore, the regulating section 651B is arranged on the signal recording surface 2 of the predetermined disk 201.
If the disc is inserted while it is stuck on the 01B side, it will come into contact with another disc 201 and prevent the disc from entering the entrance/exit port 651, and its tip will push the other disc 20 back into the tray main body 202. It is regulated so that it returns to the delay storage groove 203.

In this case, as shown in FIGS. 14(a) and 14(b)K, due to the molding of the disc 20, one signal recording surface 201B is finished in a substantially mirror-like finish, and the other label surface 201B is finished in a substantially mirror-like finish.
Person 01 has what is called a minute protrusion.

Therefore, the disk 20 accommodated in the tray body 202
As shown in FIGS. 15(a) and 15-(b), in 1, the label surface 201C of the label surface 201A of the adjacent disk 201 was caught on the signal recording surface 201B, or the disks were stuck together due to static electricity, etc. In this state, the disk is inserted into the disk entrance/exit port 65A by the disk push-up mechanism L/J and the disk transfer mechanism section 600. Therefore, the restriction portion 551B provided at the disk entrance/exit 651 of the fixed guide 661 is indispensable for preventing the two disks 201 from entering the disk entrance/exit 651.

On the other hand, the buffer section 651C is provided in the middle of the disk inlet/outlet 651 corresponding to the vicinity of the center of the disk 20 passing through in an inclined manner as shown in FIG. 16(a). One side of the bottom of the disc entrance/exit slot 651 corresponds to the other side of the entrance/exit 651. Further, as shown in FIG. 6B, the buffer portion 651C is supported at its base end with respect to the fixed guide 65 so that its rigidity in the lateral direction (loading direction) is low. Therefore, the buffer section 651C is
1 passes through the disc entrance/exit 651 person, its signal recording surface 2θIB comes into sliding contact with the disc entrance/exit 651 person, etc., and prevents scratches etc. from coming into contact with the disc entrance 651 person, etc.

Now, the disc search performance mechanism section 400 configured as described above loads and unloads the disc 201 through a moving process as shown in FIG. In other words, 0. O3 to O3 respectively indicate the trajectory of the center position during the movement process of the disk 20 which is taken out from the tray body 202 and loaded into the disk playing mechanism section Lj. Following the trajectory, the tray body 202
is housed in its original position.

In this case, when the disc search performance mechanism unit searches for 20 predetermined discs based on the access information,
First, the disk lifting mechanism L ZC+ (see FIG. 9) is driven to push up the disk 20 to position 02. Then, the peripheral edge of this disk 201 is transferred to the disk.
The rollers 611 and 631 of the first and second loading sections 610 and 630 for loading and unloading of the feeding mechanism section 600 are brought into contact with each other.

Here, these first and second loading sections 610.
630 is moved in the direction of the arrow along the guide rail 650 while rotating the rollers 611, 631 counterclockwise in the figure, so that the disk 201 is rotated clockwise in the figure in the direction of the arrow! Loaded in the direction. and,
When the disk 201 rolled by the first and second loading sections 610 and 630 crosses the fixed guide 65 for disk loading, it is separated from each of the rollers 611 and 631, and due to its own weight. , and reaches the disc housing section. At this time, the disk 2
0 is detected by the disc detector 652 installed in the slot part 65, and the disc playing mechanism part 700 is driven in response to the detection of this disc passage L7. , a disc is played.

In this state, when the disk playing operation of the disk playing mechanism section 1111 is completed, the disk moving mechanism section 1111 is reversely driven.

Then, the first and second loading sections 610,
t 6 J O rotates the rollers 611 and 631 clockwise in the figure while moving the pair of curved guide rails 65.
The rollers 611 and 631 are brought into contact with the peripheral edge of the disk 201 by moving in two directions along the arrow 0.650.

As a result, this disk 201 is rolled counterclockwise in the figure by the p-ra 611 and 631 as the first and second loading sections 610 and 630 move in the two directions indicated by the arrows, as described above. It moves in two directions according to the arrows, taking a trajectory that is almost opposite to the loading direction. And this disk 2
When the tray 01 is unloaded to a predetermined position, the first and second loading parts 610 and 630 are stopped, so that it is separated from the rollers 611 and 631, and is kept at the predetermined position of the tray body 202 by its own weight. Ol
It is stored in such a way that it rolls up to the position of .

In this way, the disc autochanger device has a regulating part 651 for preventing two discs from being fed at the disc entrance/exit 651 of the fixed guide 651 through which the disc 201 passes.
C is provided to prevent a plurality of (in this case, two) discs 20 of the tray main body 202 from being fed into the disc search performance mechanism section 40-0 at the same time. According to this K, for example, from the tray body 202 to the disk 2
Even when a plurality of discs 201 are fed in, it is possible to reliably restrict the passage of only one disc 201 through the disc entrance/exit 651, contributing to an increase in the number of stored discs 20, and Since it can contribute to the prevention of failures, it is possible to promote reliable operation.

Note that the present invention is not limited to the above-described embodiment, but as shown in FIG. Also, as shown in FIG. 19, the disk entrance 651A
Even more effective effects can be obtained by arranging them on both sides.

〔Effect of the invention〕

As described in detail above, according to the present invention, it is possible to provide an extremely good disc autochanger device that has a simple configuration and can promote reliable operation so as to increase the number of stored discs. .

[Brief explanation of drawings]

FIG. 1 is an external front view showing an embodiment of a disc autochanger device according to the present invention, FIGS. 2 and 3 are a perspective view and a plan view respectively showing the disc autochanger mechanism taken out from FIG. 1, and FIG. 4 2 is a detailed front view showing the main tray mechanism section shown in FIG. 2, FIG. 5 is a detailed view showing the disc storage groove shown in FIG. An exploded perspective view shown to explain the state, FIG. 7 is a perspective view of the main part showing the auxiliary tray mechanism part of FIG. 2 taken out, and FIG. 9 and 10 are respectively perspective views showing the disc search performance mechanism shown in FIG. 2, and FIG. 11 is a diagram showing the relationship between the tray body and the disc search performance mechanism. Figure 12 is a perspective view showing the fixed guide shown in Figure 9 taken out, and Figure 13 shows details of the regulating part for preventing double disk feeding in Figure 12. Configuration explanatory diagrams shown in Figs. 14 and 15
The figures are respectively state diagrams of the disk shown to explain the regulating section in FIG. 13, FIG. 16 is a configuration explanatory diagram showing details of the buffer section for disk protection regulation in FIG. 18 and 19 are configuration diagrams showing other embodiments of the regulating section shown in FIG. 13, respectively. 100... Cabinet, 10... Main tray storage section, 102... Auxiliary tray storage section, 1o3... Operation section, 104... Operation section/display section, 106... Display section, node 06...Level display section, 108...Current song display section, IO2...Next song display section, 11θ...Headphone plug insertion section, 111...Remote controller insertion section, 1
12...Auxiliary tray loading/unloading operation unit, 12...Main chassis, 122.123...Side chassis,
200...Main tray mechanism section, L mutual''...Auxiliary tray mechanism section, 400...Disc search performance mechanism section, 20
ノ...Disk, 2o2...Tray body, 203.
... Disc storage groove, 253, 254 ... Tray support stand, 301 ... Auxiliary tray, 500 ... Disk search section, p-(j~! ... Disk transport mechanism section, M!
J...Disk performance mechanism section, 40)...Rail, 4
02... Guide shaft, 4o3... Search wire, 40
4...Address plate, 35o...Auxiliary tray drive mechanism, 204...Spring, 2o5...Disk hold lever, 206...Attachment/detaching guide m, 2ov...
・Slit, 208, 208B--Partition wall, 201
k...Label side, 201B river signal recording side, 203k
... Regulation Department, '203B... Regulation Department, 2o3C...
・Slope part, 203D... Holding part, 2o9 river cutting part, 4
o6...Disc stop wire, 3o2...Disk storage groove L 3θ3...Auxiliary) Ray chassis,
3o4... Guide shaft, 305... Lower rail, 30
6, 307...Sliding bearing, 308...Roller, 3
o9...Rack, 380...Notch, 381...
At the locking portion, 382. 382B...Partition wall, 910...Operation unit, 920.
...Control circuit, 930...Display section, 420.
...Mounting structure, 421... Guide hole, 422... Guide portion, 423... Shaft, 424... Mounting plate, 425
...Sensor part, 510...Disk pushing mechanism 1.530...Search wire drive mechanism, 610...
First loading 8. 630... Second loading section, 61, 631... Roller, 650... Guide rail, 651... Fixed guide, 652... Disk detector, 653...・First detection switch, 654・
...Mounting body, 651 people...Disc entrance, 651B
... Regulation part, 651C... Buffer part. Applicant's representative Patent attorney Takehiko Suzue Figure 11 Figure 12 Figure 14 (a) (b) Figure 15 Figure 16 (a) (b) Figure 18 (b) Figure 19 (b)

Claims (3)

[Claims] (1) In a disc autochanger device that automatically selects a predetermined disc from a tray and can supply it to a disc playing section for replacement, to prevent other unselected discs from entering the disc entrance/exit section of the disc playing section. A disc autochanger device characterized by having a regulating section. (2) The disc autochanger device according to claim 1, wherein the regulating portion is provided below the center of the disc stored in the tray. (3) The disc autochanger device according to Claims 1 and 2, wherein the regulating portion has a distal end thereof extending to a position facing the disc storage portion of the tray.