JPH0142853Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a disc autochanger device suitable for, for example, a CD (optical compact disc). [Technical background of the invention and its problems] Recently, in the field of audio equipment, DAD (Digital Audio Disk) using PCM (Pulse Code Modulation) technology has been developed in order to achieve as high fidelity reproduction as possible. ) playback devices have been developed, and among them, those based on the CD system are rapidly becoming popular. In other words, this CD method has a diameter of 12 cm.
Digital (PCM) on a transparent resin disc with a thickness of 1.2 mm
CLV is a disk that is coated with a metal thin film that forms pits (irregularities that provide different light reflectance depending on "1" or "0") corresponding to the data.
(constant linear velocity) method to rotate at a variable rotational speed of about 500 to 200 rpm, and then linearly tracked from the inner circumference to the outer circumference using an optical pickup with a built-in semiconductor laser and photoelectric conversion element. It is something that allows you to regenerate. In this case, a CD stores a huge amount of information, enabling approximately one hour of stereo playback on one side, and has a higher recording density than conventional analog discs in terms of playback characteristics. It has been established in principle that it can be made significantly superior in terms of points as well. By the way, as a way to utilize the excellent features of such CDs, for example, it is being considered that they can be used as multi-disk automatic performance devices for professional use. In other words, this corresponds to the so-called joke box or karaoke machine that is also in practical use with analog disks.
This can be realized by a disk automatic changer device. However, this type of disk autochanger device, which has been known in the past, is designed for analog disks and has a complex structure and large size.
There were problems with operability. Furthermore, due to the need for reliable operation, the number of disks that can be stored cannot be increased that much, and the speed of replacing disks cannot be made that fast either. Therefore, there are many problems in applying the conventional disk auto-changer device for CDs as described above, and it is urgent to develop a disk auto-changer device suitable for CDs. It was considered to be an issue. This situation is the same in the case of a laser video disk, and also in the case of application to an optical disk file system that has recently been put into practical use as part of the so-called electronic file conversion. By the way, in this type of disk automatic changer device, in order to search for a desired disk among the large number of disks stored in the tray, it is necessary to take into account the possibility of accurate address detection at all times. [Purpose of the invention] This invention was made in view of the above points, and it is possible to constantly accurately detect the address of the disk storage position in the tray by absorbing the thermal effects caused by changes in ambient temperature. The object of the present invention is to provide an extremely good disc autochanger device as described above. [Summary of the invention] The disk auto changer device according to this invention includes a tray body in which a plurality of disk storage grooves for separately storing a plurality of disks are connected, and an address corresponding to the plurality of disk storage grooves in the tray body. and an address detection member on which a detection pattern is formed, and the tray body and the address detection member are formed of materials having substantially the same thermal characteristics and correspond to each other with respect to the substrate member. It is characterized in that the other end is thermally supported in an expandable and contractable manner with one end as a reference. [Example of the invention] Hereinafter, as an example of this invention, when applied to a multi-disc automatic performance device for CD,
A detailed description will be given with reference to the drawings. FIG. 1 shows a front external view of a cabinet 100 that houses a disk automatic changer mechanism, which will be described later.
The main tray storage section 102 is a main tray storage section that can accommodate up to 1 disk (1 disk), and is an auxiliary tray storage section 102 that serves as a plus-one tray so that a small number of disks (in this case, 1 disk) can be freely inserted and removed. In addition, 103 is an operation section for specifying performance status such as start, pause, cancellation, redo, etc., 104 is a key operation section and its display section that allows you to reserve up to 5 songs in this case, and 105 is a song pitch (tempo) control section. )
control and key control display;
106 is a signal level display section, 107 is a tenten 10
key operation section; 108 is a display section for the song currently being played;
Reference numeral 109 is a display section for the next piece of music to be performed. In addition, 110 is a headphone plug insertion part, 11
Reference numeral 1 is an insertion section for a remote control plug, and reference numeral 112 is an operation section for inserting and removing the auxiliary tray. Figures 2 and 3 are cabinet 1 in Figure 1 above.
This figure shows a perspective view and a plan view of the disk automatic changer mechanism taken out from 00, showing the main chassis 121 and the left and right side chassis 12.
A main tray mechanism section 200 , an auxiliary tray mechanism section 300, and a disk search performance mechanism section 400 are installed between 2 and 123 in a relationship as will be described later.
It has To roughly explain the operation of such an autochanger mechanism, a main tray mechanism section in which a predetermined number of disks 201 are vertically arranged and housed at a predetermined pitch in disk storage grooves 203 of a tray body 202, which will be described later. 200 (or the auxiliary tray mechanism section 300), the disk search performance mechanism section 400 first searches for the target 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, it is removed from the main tray mechanism section 200 or the auxiliary tray mechanism section 30.
After returning to the original position on 0, the same operation as described above is repeated based on the next disk access information. In this case, the main tray mechanism section 200 has its synthetic resin tray body 202 mounted on the left and right tray support stands 25 erected on the main chassis 121.
3,254, is detachably supported as will be described later. Further, the auxiliary tray mechanism section 30 is supported by an auxiliary tray drive mechanism 350, in which the auxiliary tray 301 will be described later, so as to be movable in and out in the directions of arrows C and D in the figure. Further, the disk search performance mechanism section 400 includes a disk search section 500, a disk transfer mechanism section 600, and a disk performance mechanism section 700, which will be described later.
The main chassis 121 supports a rail 401 and a guide shaft 402 as guides, and is moved in the directions of arrows A and B in the figure by the driving force of a search wire 403, which will be described later. It turns out. In addition, 404 in FIG. 3 is an address detection member made of synthetic resin supported on the main chassis 121 as a substrate member, and is a
In this case, 60 is formed on the tray body 202 of 00.
A binary pattern P is formed that can optically detect the absolute address of the disk storage position in one-to-one correspondence with each disk storage groove 203, as will be described later. However, the main tray mechanism section 200
Details of the support structure for the main chassis 121 as a substrate member on which the address detection member 404 is supported will be described later, but the correspondence relationship between the two will be described here. FIG. 28 shows the main tray mechanism section 200 and the address detecting member 404 with other parts removed in order to explain the correspondence regarding the support structure of the main tray mechanism section 200 and the address detection member 404, which are the main parts of this invention. That is, the main tray mechanism section 200 and the address detection member 404 are arranged so that their disk storage grooves 203 and patterns P correspond to each other on the main chassis 121, which is a substrate member, as shown by the dashed line in the figure. In both figures, the right side is the reference (fixed) side and the left side is thermally supported in the direction of the arrow as the expandable (movable) side. In this case, the main tray mechanism section 200
The reference side is the tray support stand 254 on the right side of the figure.
The position of the roller 26 is regulated by the levers 263 and 264, whose telescopic side is attached to a spring 267, which will be described later.
6 etc. enter through the window of the tray support stand 253 on the left side in the figure, and are supported in a thermally expandable and contractable manner with elasticity. In addition, the address detection member 4
04 is directly fixed to the main chassis 121 by a screw 280 on its reference side (right side in the figure), and on its telescopic side (left side in the figure) as described later, a plate spring 268 having a slit or a long hole is attached. The screw 281 is inserted through the buffer member 269 having
282 etc., it is elastically and thermally expandable and supported. Note that since the tray main body 202 and the address detection member are formed of materials having substantially the same thermal characteristics, both expand and contract by the same amount in the direction of the arrow due to changes in ambient temperature, and as will be described later, the tray body 202 and the address detection member are made of materials having substantially the same thermal characteristics. Accurate address detection for the position becomes possible. Next, details of each of the above parts will be explained in order. FIG. 4a shows the main tray mechanism section 200 in the above
The figure shows a 60mm diameter approximately 1/4 semicircular.
Tray body 2 with disk storage grooves 203
02, a letter-shaped disk hold lever 205 rotatably supported via a spring 204 between both sides of the tray body 202, an attachment/detachment guide portion 206 similarly formed on both sides, and a disk storage groove. It has 60 slits 207 for positioning, which are formed as shown in FIG. 5a, b, and c are a sectional side view, a side view, and a front view showing details of the tray main body 202, and
Each of the 60 approximately 1/4 semi-circumferential pieces has a valley having a radius of curvature R ₁ that matches the disk 201 to be stored, and has a peak of a predetermined shape as described later, that is, a partition wall 208 of a predetermined height. The disc storage groove 203 has a predetermined pitch in the longitudinal direction (in the case shown, it is 4 mm for a 1.2 mm thick CD, but the groove width at the entrance is 1.4 mm).
mm, and the valley width at the inner part is 2.8 mm wide at the end), and a notch 209 is formed at the bottom of each disc storage groove 203.
and a locking portion 210 are formed, and the aforementioned slits 207 are formed at each entrance and exit portion. Here, the partition wall 208 of the disk storage groove 203
When disk 201 is stored, disk 2
The disk 20
The height of each part in the first storage direction is set. That is, the disk 201 is accommodated in sliding contact with the bottom of the groove in the direction of the arrow E shown in the figure.
If no consideration is given to the height of the partition wall 208, when the disk 201 is tilted in the direction perpendicular to the storage direction within the disk storage groove 203, the tip of the disk 201 will be at the partition wall 208 at that position. It will come into contact with the top of the. Therefore, the top of each part of the partition wall 208 is located on a line that is inclined outward from the tangent Q of the disk outer circumferential circle P at each position in the storage direction of the disk 201.
By setting the radius of curvature to be larger than that, the disk 201 can be smoothly stored without causing the above-mentioned problems. In FIG. 4, reference numeral 209 is a notch for pushing up the disk formed in connection with the bottom of each disk storage groove 203, and 210 is a cutout for pushing up the disk.
This is a step-shaped locking portion formed on one side of the tray body for locking the tray body, the details of which will be described later. Further, 270 is a drawer section which will be described later. FIG. 6 is an exploded perspective view for explaining the procedure for attaching and detaching the main tray mechanism section 200 as described above.
Guide boss 255 and rail 25 provided on 54
6, the attachment/detachment guide portions 206 formed on both sides of the tray body 202 may be inserted in the direction of arrow F in the figure. However, in this case, before insertion, the disk hold lever 205 is in the position shown by the solid line in the figure, rotated in the direction of arrow G by the biasing force of the spring 204, and any disk 201 is inadvertently moved from the tray body 202. This makes it possible to prevent them from falling off. Then, during the insertion process in the direction of arrow F, the disk hold lever 205 is inserted into the locking portions 25 at both ends.
7 is engaged with the lock pins 258, 259 provided on the tray supports 253, 254, and is rotated in the direction of arrow H in the figure to the position shown by the chain line in the figure, and is locked at the final position in the insertion direction. It turns out. FIG. 7 is a progress diagram for explaining such an insertion (locked) state, and a shows a state in which the locking portion 257 of the disk hold lever 205 comes into contact with the lock pins 258 and 259 during the insertion process in the direction of the arrow F. state. By further inserting b,
In this state, the locking portion 257 passes between the lock pins 258 and 259, and the disk hold lever 205 is rotated in the direction of arrow H in the figure. 3C shows a state in which the locking portion 257 of the disk hold lever 205 is engaged with the lock pin 258 due to the biasing force of the spring 204 and is locked. When the installation of the main tray mechanism section 200 is completed, the disk hold lever 205 has been rotated to the position corresponding to the chain line in FIG. 6 as shown in FIG. 2
It is possible to selectively take in and take out the disks 201 housed in 00 in common. In addition, upon completion of such installation, FIGS. 6 and 8
As shown in the figure, since the roller 261 supported at the tip of the tray presser lever 260 provided on the back side of the tray support stand 253 enters through the window portion 253a, the attachment/detachment guide portion 206 of the tray body 202 is closed. The tip is pressed in the direction of arrow I by the biasing force of the spring 262, and is also supported by the tips of a pair of tray horizontal presser levers 263, 264, which are also engaged in an X-shape via a spring 267. Since the rollers 265 and 266 that are present enter through the window portions 253b and 253c,
The corresponding side end of the tray body 202 is indicated by the arrow J in the figure.
being pushed in the direction. As a result, installation of the main tray mechanism section 200 is completed as shown in FIGS. 2 and 3, and in the completed state of the device, rattling etc. will not occur due to the locking action and pressing action as described above. It will be fixed without any problem. By fixing the main tray mechanism 200 , the left end of the tray body 202 is thermally expandable with respect to the right end in FIGS. 2 and 3. Further, since the address detection member 404 needs to be supported in a one-to-one relationship with each disk storage groove 203 and slit 207 of the tray body 202, it is attached to the main chassis 121 as shown in FIGS. 2 and 8. On the other hand, the left end is thermally supported via a leaf spring 268 and a cushioning member 269 such as rubber so that the left end can expand and contract with respect to the right end. As a result, even if there is a change in the ambient temperature, the tray main body 202 and the address detection member 4
04 are made of a material having the same thermal characteristics, such as the same type of synthetic resin, the disk storage grooves 203 and slits 207 of the tray body 202 and the address detection member 404 can be used for absolute address detection. The pattern is thermally expanded and contracted by the same amount and maintains a one-to-one relationship, so that accurate address detection (access) and positioning, which will be described later, can be performed at all times. When taking out the main tray mechanism section 200 from the main body, first put your hand on the disk hold lever 205 located at the solid line position shown in FIGS. 8 and 10 to release the locked state. After pressing slightly downward, pull out the drawer part 2 formed at the bottom of the tray body 202.
70 and arrow M opposite to the above insertion direction.
Just pull it out in the direction. FIG. 9 is a progress diagram for explaining such a withdrawn (unlocked) state, in which a shows the state in which the locking portion 257 of the lever 205 and the lock pin 258 are connected immediately after the disc lever 205 is pushed down in the direction of the arrow K shown in the figure. This is a disengaged state. b is a state in which the tray main body 202 is pulled out in the direction of arrow L in the figure, and the locking portion 257 of the lever 205 passes between the lock pins 258 and 259, allowing the tray to be pulled out in the same direction. When the main tray mechanism section 200 has been completely pulled out, the disk hold lever 205
is returned to the position indicated by the chain line in FIG. 10, that is, the position indicated by the solid line in FIG. can be prevented. In addition, in the process of such a pull-out operation, the main tray mechanism section 20 is held down while the disk hold lever 205 is pressed down in the direction of the arrow K shown in the figure.
0 can be pulled out, the lever 205
However, in reality, as described above, the locking portion 257 of the lever 205 engages with the lock pin 259 as shown in FIG. 7a during the pulling process. In this state, when the lever 205 is forcibly released from the hand, the lever 205 is allowed to rotate in the direction of the arrow G in the figure and returns to the solid line position before insertion as shown in FIG. , it becomes possible to reliably achieve the effect of preventing the disk from falling off. With the above, it becomes possible to stably attach and detach the main tray mechanism section 200 . By the way, if this continues, the main tray mechanism section 200
There is a risk that the disk 201 may inadvertently fall off from the tray body 202 within the body due to external vibrations applied to the body while the disk 201 is mounted inside the body. For this reason, as shown in FIG.
The disk stop wire 406, whose both ends are locked via
410 in a loop shape, the disk stop wire 406 will be linked to whatever position the disk search performance mechanism section 400 moves in the directions of arrows A and B in the figure. As shown in FIG. 12, the disk stop wire 406 comes to face any of the disks 201 housed in the tray body 202 of the main tray mechanism section 200 (see FIG. 3). It is possible to prevent the disk from accidentally falling out of the main body. Note that when any of the disks 201 stored in the main tray mechanism section 200 is being searched and played by the disk search performance mechanism section 400 as described later, the main tray mechanism section 200 cannot be inserted or removed. ing. FIG. 13 shows the auxiliary tray mechanism section 30 in the above
0 is taken out, and in this case, the auxiliary tray 301 is shown pulled out in the direction of arrow C in the figure. That is, in this case, the auxiliary tray 301 has a disk storage groove 302 of approximately 1/4 semicircular shape at the front that can store one disk 201, and an auxiliary tray chassis 303 at the rear, made of synthetic resin. etc., and the auxiliary tray chassis 303 is the right side chassis 1.
The guide shaft 304 and the lower rail 305, which are arranged vertically close to 23, are supported so as to be slidable in the directions shown by arrows C and D via sliding bearings 306, 307 and rollers 308, respectively. In addition, a rack 309 integrally formed on the back side of the auxiliary tray chassis 303 is connected to an auxiliary tray drive mechanism 350, which will be described later. In response to the first and second operations, it is automatically pulled out and retracted from the main body so that it can be put in and taken out. Then, as shown in FIG. 13, the auxiliary tray 30
1 is pulled out, the disk stop lever 310 is rotated so as to be located at the rear of the disk storage groove 302, as will be described later, so that the disk 201 can be prevented from falling off to the rear. being done. In addition, in FIG. 13, the auxiliary tray 301 has a notch 380 connected to the bottom of the disk storage groove 302 for pushing up the disk, and a stepped locking portion on one side of the notch 380 for locking the auxiliary tray. 381 are formed, the details of which will be described later. Note that the height of each part of the partition wall 382 of the disk storage groove 302 formed in the auxiliary tray 301 is the same as that of the disk storage groove 203 formed in the tray body 202 of the main tray mechanism section 200 described above.
It is assumed that the same considerations as for the partition wall 208 are taken. Further, the entrance/exit part of the disk storage groove 302 formed in the auxiliary tray 301 (rear part in FIG. 13) is formed at the entrance/exit part of the disk storage groove 203 formed in the tray body 202 of the main tray mechanism section 200 described above. slit 20 for positioning
It is assumed that a slit (not shown) similar to 7 is formed. FIG. 14 shows a detailed view of the auxiliary tray drive mechanism 350, in which the driving force from the motor 351 is transferred from the worm gear 352 to the worm wheel gear 3.
53 → clutch gear 354 → first gear 355 →
The power is transmitted to the rack 309 integrated with the auxiliary tray chassis 303 through a series of power transmission paths: second gear 356 → third gear 357 → fourth gear 358. Here, the clutch gear 354 inserted in the power transmission path limits the maximum torque that is finally transmitted to the rack 309 to prevent undesired jamming between the worm gear 352 and the worm wheel gear 353. It is for the purpose of FIGS. 15a and 15b show the disk stop lever 310 taken out. Now, as the motor 351 of the auxiliary tray drive mechanism 350 rotates, the auxiliary tray 301 moves toward the arrow D shown in the figure.
Assume that you are being pulled in a direction. That is, in this case, before the retracting operation starts, as described above, the disk stop lever 310, which is rotatably supported on the rear side of the auxiliary tray 301, has one end biased by the spring 311. By being in contact with the stopper 312, the other end is in contact with the disk storage groove 30.
2, that is, at a position opposite to the disk entrance/exit portion. When the retraction operation is performed, the roller 313 supported by one end of the disk stop lever 310 is moved from the main chassis 121 in the process.
In order to come into sliding contact with the inclined portion of the swash plate cam 314 provided above, the disk stop lever 310 is rotated counterclockwise in the direction of arrow N in the figure against the biasing force of the spring 311. will be moved. As a result, the disk stop lever 310
When the retracting operation is completed, the other end is located away from the rear of the disk storage groove 302 of the auxiliary tray 301, as shown in FIGS. This allows the disk search performance mechanism section 400 to take in and out the disk 201. Even when the auxiliary tray 301 is pulled in, the disk stop wire 409 allows the disk storage groove 3
This prevents the disk 201 housed in 02 from accidentally falling out within the main body. Further, 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. 13 is finally reached. Note that when the disk 201 housed in the auxiliary tray mechanism section 300 is searched and played by the disk search performance mechanism section 400 as described later, the main tray mechanism section 2 described above
As in case 00, the auxiliary tray 301 cannot be taken in or taken out. Furthermore, in this case, the disk 201 housed in the auxiliary tray mechanism section 300 is searched and put into the playing state only after the disk search/playing mechanism section 400 is brought into the driving state as described below. If this occurs before or during the retracting operation of the auxiliary tray 301, a malfunction is likely to occur in which the disk 201 stored in the auxiliary tray 301 cannot be searched and, as a result, cannot be put into a playing state. It is. Therefore, as shown in FIG. 17, the access start designation operation section 103 (see FIG. 1) for the disk 201 housed in the auxiliary tray 301
On the other hand, the start signal is supplied to the drive control circuit 371 via a priority circuit 370 that gives priority to the operation by the auxiliary tray loading/unloading operation unit 112 (see FIG. 1). This results in
When the auxiliary tray loading/unloading operation section 112 is operated for the first time (pull-out), the start signal from the access start designation operation section 103 is activated from the second operation (pull-in) until the time required for pulling-in. is not supplied to the drive control circuit 371, so that the operation of the auxiliary tray loading/unloading operation section 112 is controlled by the access start specifying operation section 10.
The search operation and performance operation for the disk 201 stored in the auxiliary tray 301 can be carried out reliably without causing the above-mentioned malfunction. That is, in this case, the disk search performance mechanism section 400 is not activated until the auxiliary tray 301 is completely pulled into a predetermined position within the main body by the auxiliary tray drive mechanism 350. It is something. Note that the auxiliary tray detection switch 37 in FIG.
Reference numeral 2 denotes a micro switch provided, for example, at the rear of the side chassis 123 in FIG. Even if the device is configured to allow reception of signals, the above-mentioned malfunction can be prevented. FIG. 18 shows a conceptual diagram of the disk automatic changer device as described above, in which various operations can be performed from the operating section 910, which includes the operating sections 103, 104, 105, 107, etc. as shown in FIG. Each of the mechanical units 35 is
0,400 to a predetermined state, and a desired disk 201 is automatically exchanged and played from the main tray mechanism section 200 or the auxiliary tray mechanism section 300. Note that the display section 930 in FIG. 18 includes the display sections 104, 105, 106, and
8,109, etc. Next, features of the main tray mechanism section 200 and the auxiliary tray mechanism section 300 as described above will be explained. First, regarding the structure of the tray main body 202 or the auxiliary tray 301, the disk 201
Disk storage groove 20 that holds approximately 1/4 semicircular part of
3 or a disk storage groove 302, and the tops of these partition walls 208 or 382 are located on a line that slopes outward from the tangent to the disk outer circumference at each position in the storage direction of the disk 201. One point is that the system is set to do so. In other words, this ultimately prevents the tip of the disk 201 from hitting the top of the partition wall 208 or 382 when the disk 201 is stored, making it impossible to store the disk 201. This is because it can contribute to smooth execution. The second point is regarding the main tray mechanism section 200 which is detachable from the main body, and when it is removed from the main body, the disk 201 is removed from the tray main body 202.
The tray main body 202 takes the first position that commonly prevents the tray from falling, and the tray main body 202 is installed in the main body.
One point is that a disk holding member such as a disk holding lever 205 is provided which assumes a second position that commonly allows selective insertion and removal of the disk 201 from the disk. In other words, with this, especially when the main tray mechanism section 200 is removed from the main body, the disk 201
The disk 201 can be prevented from being accidentally dropped, and the disk 201 can be prevented from being accidentally dropped.
This is because selective loading and unloading is commonly possible. The third point is also related to the main tray mechanism section 200 , since even a locking member such as the disk hold lever 205 is in a locked state when inserted into the main body, it cannot be removed unless the locked state is forcibly released. By making it impossible to do so, it is possible to prevent an accidental detachment from occurring, which can also contribute to preventing the disk 201 from falling. The fourth point is also regarding the support structure of the main tray mechanism section 200 , so that it has the same thermal conditions as the support structure of an address detection member such as the address detection member 404 for address detection, and one side is referenced to the other. By making the other side thermally expandable, accurate address detection (access) is possible at all times.
and that it made positioning possible. The fifth point is regarding the main tray mechanism section 200 and the auxiliary tray mechanism section 300, when both are placed in a predetermined position in the main body, each disk 201 housed therein has a disk facing the loading/unloading side. The point is that the stop wire 409 is stretched in a loop shape so that it can run freely while its both ends are locked to the disk search performance mechanism section 400. In other words, this allows disk 201 to be stored in the main unit.
This is because it can prevent the tray from accidentally falling off from the tray main body 202 or the auxiliary tray 301. The sixth point is regarding the main tray mechanism section 200 .
A disk stop member such as a disk stop lever 310 is provided on the disk loading/unloading side of the auxiliary tray mechanism in conjunction with the movement of the auxiliary tray mechanism section 200 into and out of the main body. Can be mentioned. In other words, this prevents the disk 201 from accidentally falling inside the main body while the auxiliary tray mechanism section 300, which can be automatically moved in and out separately from the main tray mechanism section 200 described above, is pulled out. This is because the disc 201 can be prevented from being damaged, and the disc 201 can be taken in and out when it is pulled into the main body. The seventh point is also the auxiliary tray mechanism section 300
Regarding the disk search performance mechanism section 4, the auxiliary tray 301 must be completely pulled into a predetermined position within the main body by the auxiliary tray drive mechanism 350.
One point is that 00 is not set in the driving state. That is, with this, if the auxiliary tray 301
A malfunction that occurs when the disk search performance mechanism section 400 is activated before or during the retracting operation of the auxiliary tray 301, i.e., the disk stored in the auxiliary tray 301. This is because it is possible to prevent the inability to search and play 201. Next, before explaining the details of the disk search performance mechanism section 400, first, the overall movement process of the disk 201 during loading and unloading will be schematically explained. That is, in FIG. 19, O ₁ to O ₅ respectively indicate the trajectory of the center position during the movement process of the disk 201 taken out from the tray main body 202 and loaded into the disk performance mechanism section 700. It takes a substantially reverse trajectory and is accommodated in the original position of the tray body 202. In this case, when the disk search performance mechanism section 400 searches for a predetermined disk 201 based on the access information, first, a disk push-up mechanism, which will be described later, is driven to push the disk 201 up to the _O2 position. Then, the peripheral edge of the disk 201 comes into contact with rollers 611 and 631 of the first and second loading sections 610 and 630 for loading and unloading of the disk transfer mechanism section 600, respectively. Here, these first and second loading parts 610, 630 are connected to each roller 611, 63.
1 counterclockwise in the figure, rotate the guide rail 6.
50 in the direction of arrow _K1 , the disk 201 is loaded in the direction of arrow _K1 while rolling clockwise in the figure. These first and second loading sections 610 and 630
When the disk 201 rolled by the disk 201 passes over the disk loading slot portion 651, it is separated by the rollers 611 and 631 and reaches a disk storage portion to be described later by its own weight. At this time, the disk 201 is inserted into the disk detector 6 installed in the slot portion 651.
52, the passage of the disc is detected, and in response to the detection of the passage of the disc, a disc playing mechanism section 700, which will be described later, is driven, and the disc is played. In this state, the disk performance mechanism section 7
When the disc playing operation of No. 00 is completed, the disc moving mechanism section 600 is driven in reverse. Then, the first and second loading sections 610,
630 is a pair of curved guide rails 6 while rotating each roller 611, 631 clockwise in the figure.
50,650 in the direction of arrow _K2 ,
The rollers 611 and 631 are brought into contact with the peripheral edge of the disk 201. As a result, this disk 201 is connected to the first and second loading sections 610 and 63.
As the arrow K of 0 moves in _{the two} directions, the roller 6
11, 631 in the counterclockwise direction in the figure, and moves in the direction of arrow _K2 , following a trajectory substantially opposite to the loading described above. And this disk 2
01 is unloaded to a predetermined position, the first and second loading parts 610,
Since the tray 630 is stopped, it is separated from the rollers 611 and 631, and due to its own weight, the tray main body 2
It is stored in a rolling manner up to the predetermined position _O1 , which is the predetermined position O2. Here, FIGS. 20 and 21 show the disk search performance mechanism section 400 before and after loading, respectively. In other words, 42 in the figure
0 is a substantially frame-shaped mounting structure, and this mounting structure 420
At one end, there is a search wire drive mechanism, which will be described later, for moving in the directions of arrows A and B with respect to the tray body 202 (see FIG. 2) constituting the disk search section 500, and the disk for pushing up the selected disk 201. A push-up mechanism 510 is installed. This disk pushing mechanism 510
A disk transfer mechanism section 600 is installed on the upper surface of the mounting structure 420 corresponding to the disk 201, which loads the pushed-up disk 201 and unloads it after the performance is finished. The above mounting structure 420
A disk playing mechanism section 700 for playing the disk 201 loaded by the disk transfer mechanism section 600 is installed approximately in the center of the disk. Furthermore, a guide hole 421 is formed at one end of the lower surface of the mounting structure 420 to movably fit and support the guide shaft 402 (see FIG. 3), and the other end is formed with a guide hole 421 that movably fits and supports the guide shaft 402 (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 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 FIG. 3). Furthermore, a dual sensor section 425, numeral 425 in the figure, is formed by a second photocoupler and is provided at one end of the mounting structure 420 so as to sandwich the slit 207 of the tray body 202, as shown in FIG. When the mounting structure 420 is moved to a predetermined position based on the access information as described above, the dual sensor section 425 is connected to the mounting structure 425.
20, the differential movement of the tray body 202 with respect to the slit 207 is detected. Note that 653 in the figure 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 connected to the mounting The guide rails 650, 6 are attached to a mounting body 654 fixed to the upper end of the structure 420.
50. The first detection switch 653 detects when the first loading section 610 has moved the most in the _K2 direction and stops the loading drive motor, which will be described later, to complete the unloading. Here, FIG. 23 and FIG. 24 respectively show a search wire drive mechanism 530 and a disk push-up mechanism 510 that constitute the disk search section 500.
531 and 511 in the figure
are a search wire drive motor and a push lever drive motor, respectively. That is, a worm gear 532 is supported on the rotating shaft of the motor 531, and the worm gear 532
is meshed with the worm wheel gear 533. This worm wheel gear 533 is provided with a pulley part 534 for wire winding and a braking part 535, and a spring 536 and a braking viscoelastic member 5 are attached to the shaft 423 implanted in the mounting structure 420.
It is supported movably in the axial direction with 37 interposed therebetween. As a result, when the worm wheel gear 533 moves in the axial direction (downward), the braking portion 53
5 comes into contact with the viscoelastic member 537, and its rotational driving force is braked. As shown in FIG. 3, the pulley portion 534 of the worm wheel gear 533 has a search wire having one end supported by the side chassis 122 and the other end supported by the side chassis 123 via a spring member 538. The middle part of 403 is wrapped. Further, one end of a first brake lever 539 is engaged with the upper surface of the worm wheel gear 533, and one end of a second brake lever 540 is engaged with a shaft 541 in the middle of the first brake lever 539. It is rotatably supported through. A spring member 542 is engaged between the other ends of the first and second brake levers 539 and 540, and the levers are installed so as to maintain a predetermined distance from each other.
Further, an engagement projection 543 for cam sliding contact is formed at the other end of the second brake lever 540, and this engagement projection 543 is engaged with a first cam portion 545 of a brake cam 544. . Here, this cam 544 is provided integrally with a worm wheel gear 513 that meshes with a worm gear gear 512 supported by the rotating shaft of the motor 511, and corresponds to the first cam portion 545. A second cam portion 546 for pushing up the disk is provided. This second cam portion 546 has an operating lever 5.
One end of 14 is engaged. This operating lever 514
The shaft 516 is inserted into the elongated hole 515 provided in the middle part.
is inserted and provided movably in the directions of arrows K ₃ and K ₄ . Further, one end of a push-up lever 517 is rotatably supported at the other end of the operating lever 514 via a shaft 518 . The intermediate portion of the push-up lever 517 is rotatably supported by a mounting plate 424 provided on the mounting structure 420 via a shaft 519 and a spring member 520. At the other end of the push-up lever 517, for example, a substantially step-shaped lock portion 521 is provided in a locking portion 210 of the notch 209 of the tray body 220 and a notch provided at the bottom of the disk storage groove 302 of the auxiliary tray 301. Approximately stepped locking portion 38 of portion 380
1, and a disk protection cap portion 522 made of, for example, an elastic material is provided at the tip thereof. Further, the cam 544 has first and second engaging portions 547 and 548 at predetermined positions, respectively, and first and second switches 549 and 55 for cam position detection.
It is provided corresponding to each of the operating parts 551 and 552 of 0. As a result, the cam 544 moves its first and second engaging portions 547 and 5 in accordance with its rotational position.
48 is the first and second switch 549, 55
Position detection is performed by turning 0 on and off. Now, the search wire drive mechanism 530 and disk push-up mechanism 510 configured as described above operate as follows. That is, in the search state of the disk search performance mechanism section 400, the search wire drive mechanism 53
The motor 531 constituting the motor 0 is driven to rotate in a predetermined state. Then, this motor 531 is connected to the worm wheel gear 533 via the worm gear 532.
A search wire 403 is connected to the pulley portion 534 of the worm wheel gear 533 to rotate the worm wheel gear 533.
is wrapped around. As a result, this search wire 4
03 is wound around the pulley portion 534, a predetermined driving force (biasing force) is generated to move the disk search performance mechanism portion 400 in the directions of arrows A and B, and a search for the disk 201 is performed. In this case, the disk search performance mechanism section 400
As shown in FIG. 5, when the address detection member 404 is detected by the optical sensors P ₁ to P ₆ provided on the lower surface of the mounting structure 420, the differential detection sensor section 425 is then detected. detects the differential movement of the tray body 202 with respect to the slit 207 and performs precise positioning, and the disk 201
Complete your search. At this time, the worm wheel gear 533 is connected to the first and second brake levers 53.
The cam 544, which is braked via the cam 9,540, is stopped with its first engaging portion 547 turning on the first switch 549. When the search for the disk 201 is completed, the motor 513 stops driving with the mounting structure 420 positioned. Then,
Next, the motor 511 is driven to drive the worm wheel gear 513 and the cam 5 as shown in FIG.
44 is rotated counterclockwise in the figure. Therefore, this cam 544 first has its first cam portion 545
rotates the first brake lever 539 clockwise in the figure via the second brake lever 540, and the first engaging portion 547 engages the first switch 5.
49 and the first switch 549 is turned off. Here, the first brake lever 539 is connected to the worm wheel gear 533.
is urged to move in the axial direction, and its braking portion 535 is brought into contact with the viscoelastic member 537, thereby braking (so-called locking) the worm wheel gear 533. When the cam 544 is rotated most clockwise in the figure as shown in FIG.
and turns on the second switch 550. At this time, the second cam portion 54 of the cam 544
6 moves and urges the operating lever 514 in the direction of arrow _K4 to rotate the push-up lever 517 clockwise in the figure. Then, with the cap portion 522 of the push-up lever 517 inserted into the notch 209 of a predetermined disk storage groove 203 of the tray body 202 and pushing up the disk 201 to a predetermined position, the lock portion 521 is inserted into the notch. It is opposed to the locking part 210 of 209. Here, the disk 201 is loaded into the disk performance mechanism section 700 by the disk transfer mechanism section 600 as described above. When the disc performance is finished, the disc 201 is unloaded into the original disc storage groove 203 of the tray body 202 by the disc transfer mechanism 600. Here, the motor 5
11 is reversely driven to rotate the worm wheel gear 513 and cam 544 clockwise in the figure. Then, as the cam 544 rotates, the second cam portion 546 rotates the disk push-up mechanism 510 halfway and locks the lock portion 521 of the push-up lever 517 into the notch 209 of the tray body 202. 210 to release the locked state. Next, the cam 544 has its first cam portion 545 connected to the second brake lever 54.
0 counterclockwise in the figure to separate one end of the first brake lever 539 from the worm wheel gear 533. As a result, this worm wheel gear 533 has a braking portion 535 that is connected to the spring 536.
The spring force separates the disk from the viscoelastic member 537 and releases the lock, and the next disk 20 is released.
1 is searched. It goes without saying that this invention is not limited to the embodiments described above and illustrated, and that various modifications and applications can be made without departing from the gist of this invention. [Effects of the invention] Therefore, as detailed above, according to this invention, the address of the disk storage position in the tray can be detected accurately at all times by absorbing the thermal effects caused by changes in ambient temperature. It becomes possible to provide an extremely good disk automatic changer device.

[Brief explanation of the drawing]

Fig. 1 is an external front view showing one embodiment of the disc auto changer device according to this invention;
3 is a perspective view and a plan view showing the automatic changer mechanism taken out from FIG. 1, FIG. 4 is a detailed front view showing the main tray mechanism section taken out from FIG. 2, and FIG. FIG. 4 is a detailed view showing the tray main body, FIG. 6 is an exploded perspective view to explain the attaching/detaching state of the main tray mechanism shown in FIG. 2, and FIG. FIG. 8 is a perspective view showing the installed state of the main tray mechanism shown in FIG. 2; FIG. 9 is a state diagram showing the unlocking operation of the disk hold lever shown in FIG. 8; Figure 10 is a detailed view of the rear side of the main tray mechanism shown in Figure 2 with the main tray mechanism removed, Figure 11 is a detailed internal view of Figure 2 with the main tray mechanism removed, and Figure 12 is the disc shown in Figure 11. A perspective view for explaining the effect of preventing the disk from falling off by the top wire, FIG. 13 is a perspective view of the main part showing the auxiliary tray mechanism section taken out from FIG. 2, and FIG. 14 shows the drive mechanism section of FIG. 13. Detailed view, Figure 15,
FIG. 16 is a state diagram for explaining the operation of the disk stop lever shown in FIG. 13, FIG. 17, and FIG.
The figure is a conceptual diagram illustrating the electric circuit system that controls each part of FIG. 1 and FIG. 2, FIG. 19 is a schematic diagram for explaining the overall movement process of the disk in FIG. FIG. 21 is a perspective view showing the disk search performance mechanism section shown in FIG.
2 is a state diagram for explaining the relationship between the tray main body and the disk search performance mechanism section, and FIGS. 23 and 24 are perspective views showing details of the search wire drive mechanism and disk push-up mechanism of FIG. 20, respectively. 25 is a detailed diagram showing the relationship between the sensor of the disk search performance mechanism section in FIG. 3 and the address plate, and FIGS. 26 and 27 are diagrams for explaining the operation of FIG. 24. Figure, No. 28
The figure is a plan view showing the correspondence of the main parts of this invention. 200 ... Main tray mechanism section, 201... Disk, 202... Tray body, 404... Address detection member, 121... Main chassis (board member), 253... Tray support base, 260... Tray presser lever, 261 ...Laura, 253a...
Window part, 206... Attachment/detachment guide part, 262, 267
... Spring, 263, 264 ... Tray horizontal presser lever, 265, 266 ... Roller, 253
a, 253c...window, 207...slit, 2
68...Plate spring, 269...Buffer member, 280~
282...Screw.

Claims (1)

[Claims for Utility Model Registration] A tray body in which a plurality of disk storage grooves for separately storing a plurality of disks are arranged in series, and a pattern for address detection corresponding to the plurality of disk storage grooves in the tray body are formed. The tray main body and the address detection member are formed of materials having substantially the same thermal characteristics, and the tray body and the address detection member are made of materials having substantially the same thermal characteristics, and have one end corresponding to the substrate member as a reference, and the other end thereof as a reference. A disk automatic changer device characterized in that its sides are thermally supported in a flexible manner.