JP3379413B2 - Disk magazine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magazine used for a CD player or other disk reproducing apparatus, and more particularly to a detachable shelf board for mounting a disk-shaped recording medium such as a compact disk. The present invention relates to a disk magazine provided with: 2. Description of the Related Art In recent years, digital recording type disc-shaped recording media (hereinafter, abbreviated as discs) such as CDs (compact discs) and reproduction apparatuses thereof have been widely used.
In particular, a playback apparatus having an autochanger function for a disk is convenient because it has less trouble of replacing a disk, and has been widely used in general. There are various types of structures, but it is generally well known that a magazine is provided that can accommodate discs in multiple stages and that a single disc selected from the magazine is taken out and played. I have. [0003] There are two types of magazines, one in which only a disk is inserted and removed, and the other in which a disk is mounted on a movable shelf and stored therein, of which a shelf is provided. 11 and 12 as magazines
The following are known. The magazine shown in FIG. 11 is of a so-called complete draw-out type, in which the shelf B is separated from the case A when storing a disk or the like. On the other hand, the magazine shown in FIG. 12 is of a lock type, in which the amount of shelves B to be pulled out is regulated. That is, the hooks F facing the case A and the shelf B,
F 'is formed, and the hook F' is locked to the hook F of the case A when the shelf B is pulled out by a predetermined amount. However, if the shelf board separates from the case each time the disk is replaced, as in a magazine of a complete draw-out type, if the shelf board is pulled out of the case, However, there is a drawback that it is cumbersome and difficult to insert it correctly into the device, and the usability is very poor. [0005] In this respect, the lock type magazine has an advantage that the disk can be replaced without separating the shelf from the case, so that the disk can be easily replaced without trouble. It is difficult to attach and detach the hook when exchanging it, and in that case, the hook portion often breaks due to a load exceeding the elastic limit. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to make it possible for a shelf to be detached from a case without replacing the shelf when the disk is replaced, and for the shelf to be detached smoothly without load when the shelf itself is replaced. I do. According to the present invention, in order to attain the above-mentioned object, the shelf plate for loading a disk-shaped recording medium is inserted into and removed from one end face of a case in which the shelf plate is stored in a multi-stage shape. In a disc magazine having a guide groove formed on the inner surface of the case for slidably supporting the shelf board toward the opening side, a guide groove is formed at a rear side edge of the shelf board. A selector that slides in a direction perpendicular to the guide groove along the side surface is provided on the side of the case on which the guide groove is formed , the protrusion member being protrudingly provided. The selector is formed with projections corresponding to the respective guide grooves formed in series on the selector , and the selector is
Each projection opens and closes the path of the safety piece by sliding
It is intended to provide a disk magazine characterized by being configured to perform the above . Hereinafter, an application example of the present invention will be described in detail with reference to the drawings. First, FIG. 1 shows a CD player as a disc reproducing apparatus. In the figure, reference numeral 1 denotes an exterior housing of the player, and reference numeral 2 denotes a chassis provided therein. Inside the chassis 2, a compact disk (hereinafter abbreviated as CD) as a disk-shaped recording medium is reproduced. Unit 3 and a storage unit 4 for storing a CD for reproduction are provided adjacent to the drive unit 3.
Reference numeral 5 denotes a magazine loaded in the storage unit 4, and CDs are accommodated in the magazine 5 in a multi-stage manner. Here, the magazine 5 is inserted from the loading port 6 formed in the chassis 2 into the storage unit 4.
The magazine 5 can be taken out of the storage unit 4 by operating an eject switch (not shown) when exchanging a CD or the like. The drive unit 3 includes a turntable for rotating a CD and an optical pickup for reading a pit row formed on the recording surface of the drive unit 3 as is well known. The user moves to the position, takes out the CD from the magazine 5, and pulls the CD onto a turntable (not shown). FIG. 2 shows the magazine viewed from the opposite side of FIG. As apparent from this figure, the magazine 5 is composed of a box-shaped case 7 and a plurality of shelves 8 that partition the inside of the case in the vertical direction. One end surface of the case 7 is entirely opened as an opening 9, and a selector 10, which will be described later, is mounted on the side surface on the opening 9 side so as to be vertically slidable. On the other hand, the shelves 8 are accommodated in the case 7 in a multi-stage manner at regular intervals. The CDs are individually placed on the shelves 8 one by one and stored in the case 7. When the CDs are reproduced or replaced, the corresponding shelves 8 can be pulled out from the opening 9. . Reference numeral 11 denotes a pull-out knob, and the knob 11 is formed integrally with the front end of each shelf 8 so as to protrude from the opening 9. FIG. 3 is a schematic front view of the magazine as viewed from the opening side. As shown in this figure, ridges 12 are provided at equal intervals in parallel on inner surfaces of the case 7 opposite to each other. It is formed as a horizontal guide groove 13 for supporting. The shelf plate 8 is supported on both side edges by the guide grooves 13 and can be freely inserted and removed from the opening 9 along the longitudinal direction. FIG. 4 shows a state in which the shelf board is pulled out of the case. As is apparent from this figure, the shelf 8 has a circular recess 14 for placing a CD at a predetermined position,
A fan-shaped window portion 15 is formed in the area of the concave portion. The window 15 is formed so that a CD can be reproduced on the shelf 8, and a portion for introducing a turntable (not shown) from below the shelf 8 to clamp a center portion of the CD during reproduction. And a portion facing the optical pickup. A hook-shaped anti-removal piece 16 supported by a guide groove 13 protrudes from the rear side of the side edge of the shelf plate 8. Piece 16
Are in contact with the portion of the selector 10 mounted on the case 7 to prevent the shelves 8 from being detached. As shown in the figure, the selector 10 is located on the side of the opening 9 of the case, and that part opens and closes the course of the safety piece 16.
When the selector 10 is retracted from one end of the guide groove 13 and the path of the safety piece 16 is opened, the shelf plate 8 can be separated from the case 7. FIG. 5 shows an enlarged view of the mounting portion of the selector. A mounting portion 17 for mounting the selector 10 is opened in the case 7, and the selector 10 slidably supports the mounting portion. A protruding piece 18 is formed. on the other hand,
The selector 10 has a groove 19 fitted to the protruding piece 18,
A projection 20 to be introduced into the case 7 is formed, and the projection 20 is positioned on the path of the safety piece 16. Here, a notch 21 is formed at one end of the ridge 12, so that the protrusion 20 of the selector can be accommodated in this notch. The projections 20 are formed continuously in series as shown in FIG. Next, FIGS. 7 to 10 show a state where the selector is mounted on the case. As evident from these figures,
The protrusions 20 of the selector are formed at the same pitch as the ridges 12 and the guide grooves 13. And the selector 10 is the case 7
Is slidable up and down along the side surface of the guide groove 13, and the path of the safety piece 16 at one end of the guide groove 13 can be opened and closed by the operation. The movable amount of the selector 10 is set to a half pitch of the ridges 12 and the guide grooves 13 so that the projections 20 can be accurately stopped at predetermined positions. FIGS. 7 and 9 show the state in which the selector is moved to the upper limit. At this time, the protrusion 20 is located at one end of the guide groove 13 so as to close the path of the safety piece 16. on the other hand,
FIGS. 8 and 10 show a state in which the selector is moved to the lower limit. In this case, the projections 20 are housed in the projections 12, that is, in the notches 21 shown in FIG. Is open to the public. Here, the selector 10 is set to the state shown in FIGS. 7 and 9 in a normal state, and the projection 20 closes the path of the safety piece 16 at one end of the guide groove 13. Then
When the shelf plate 8 is pulled out of the case 7 to replace the CD, the shelves 8 do not separate from the case 7 because the safety pieces 16 collide with the projections 20. A shelf 7 can be accommodated in the case 7.
On the other hand, the shelf 8 is changed from a CD for a 12 cm diameter
When changing to a CD for cm, etc., the selector 10 is switched to the state shown in FIGS. 8 and 10, and the path of the safety piece 16 is opened such that the protrusion 20 is retracted from one end of the guide groove 13. Then, when pulling out the shelf 8, the anti-separation piece 1
No load is applied to 6, and it can be inserted smoothly with no load during storage. The magazine 5 constructed as described above
As shown in FIG. 1, the CD can be loaded into the storage unit 4 with the opening 9 facing the drive unit 3 side of the apparatus main body, and the CD stored therein can be transferred to the drive unit 3 in that state. That is, when the magazine 5 is loaded into the storage unit 4 and a selection switch (not shown) is operated, the drive unit 3
Moves along the opening 9 of the magazine 5 to a position of the selected CD, and pulls out the shelf 8 on which the CD is loaded while locking the knob 11 with an arm (not shown). When the shelf 8 is pulled out, a turntable (not shown) is introduced from the window 15 onto the shelf 8 and rotated while supporting the CD. Moves along the recording surface, and reads the recorded information. The application example of the magazine according to the present invention has been described above. However, the selector 10 is mounted on the case 7 with an appropriate frictional force, so that the selector 10 is not operated by slight vibrations other than the manual operation. I have. In the above example, the magazine of the present application has been described as a magazine for CDs.
(Digital-Video-Disk) It goes without saying that the present invention can be applied to other disks. As is apparent from the above description, according to the present invention, the shelves are provided with projections protruding behind the side edges of the shelves so that the draw-out amount is regulated. It does not fall out of the case, and when the disk is replaced, the shelves can be smoothly taken in and out. Further, since the path of the safety piece can be opened and closed by operating the selector, the shelf can be attached and detached without any load when the path is opened. Therefore, there is no fear that the anti-separation piece will be broken when the shelf board is attached or detached, and the shelf board itself can be easily replaced, for example, when storing different types of discs in the magazine.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic perspective view showing a CD player. FIG. 2 is a perspective view showing an example of a magazine according to the present application. FIG. 3 is a schematic front view showing the magazine. FIG. 5 is a partially enlarged view showing a mounting portion of a selector. FIG. 6 is a partially cutaway perspective view showing a selector. FIG. FIG. 8 is a side view showing a state where the selector is mounted on the case (unlocked state). FIG. 9 is a front view showing a state where the selector is mounted on the case (locked state). 10 is a front view showing a state where the selector is mounted on the case (unlocked state). FIG. 11 is a plan view showing a conventional disk magazine. FIG. 12 is a plan view showing a conventional disk magazine. Magazine 7 K 8 shelves 9 opening 10 selector 12 ridges 13 guide groove 16 Boda' piece 20 projecting

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Claims (1)

(57) [Claim 1] An opening for inserting and removing the shelf plate is formed on one end surface of a case in which a shelf plate on which a disk-shaped recording medium is placed is stored in a multi-stage shape. In a disk magazine having a guide groove formed on the inner side surface of the case so as to slidably support the shelf toward the opening side, a projection is provided in the guide groove behind the side edge of the shelf to protrude. At the same time, a selector that slides in a direction perpendicular to the guide groove along the side surface is mounted on the side of the case where the guide groove is formed, on the side of the opening. The protrusions corresponding to the grooves are formed in series, and the selector is
Each projection opens and closes the path of the safety piece by sliding
A disk magazine characterized in that it is configured to: