JPH0721724A - Disc tray - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a disc tray in which an accurate groove position and verticality can be obtained without inclining the wall member, and the number of constituent parts is reduced, and adjustment is easy. To do. [Structure] A tray main body, in which a plurality of disc storage grooves for individually storing a plurality of discs are continuously provided, is attached to a tray support frame having side plates on both sides, and at least two shaft holes are provided in the tray main body. In a disc tray in which a support rod is slidably passed through the shaft hole and both ends of the support rod are fixed to both end side plates of the tray support frame, the tray main body has several to several dozen disc storage grooves. Is a disc tray formed by connecting a plurality of integrally formed tray blocks in a row in the width direction. The tray body is divided into front and rear blocks, and each tray block is provided with at least two shaft holes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc tray used in an automatic changer device suitable for accommodating a circular disc such as a compact disc.

[0002]

2. Description of the Related Art So-called compact discs are widely used as a medium for recording and holding sounds in sound reproducing devices such as audio devices and OA devices. In addition, as a sound reproducing device, there is a device such as a so-called jukebox or a karaoke device which selects and reproduces one song from various types of songs. In this type of reproducing apparatus, a so-called disc autochanger device is generally used. This disc autochanger device stores a large number of compact discs in a predetermined storage location in advance, and selects one of them when necessary and sends it to a playback device to reproduce sound. Is. This disc autochanger device requires a storage device for storing a large number of compact discs, for example, 20 to 100 discs, that is, a disc tray.

As the disc tray as described above, the one disclosed in Japanese Patent Application Laid-Open No. 60-115545 is conventionally known. This disc tray is formed with a large number of grooves for accommodating compact discs by integral molding such as injection molding. However, since it is difficult to form a small groove width in this disc tray, the groove width is considerably wide. For this reason, the compact disc housed in the groove may be greatly shaken to damage the signal recording surface.
Further, there is a problem that the mold becomes complicated and the manufacturing cost becomes very high.

In order to solve the above problem, the applicant of the present invention forms a large number of grooves for storing a disk by arranging a large number of thin wall members, for example, about 100 sheets in order. Disc trays have been proposed (for example, Japanese Utility Model Laid-Open No. 4-72371). With this disc tray, the groove width can be reduced,
Moreover, the mold structure for molding one wall member is simple and the cost is low. However, in this disc tray in which a large number of wall members are stacked,
Even if the dimensional error of one wall member is not so large, there is a problem in that a large error occurs in the overall size, particularly the width size, when a large number of the wall members are overlapped.

In general, in a disc autochanger device, a sensor detects a desired groove position among a large number of disc storage grooves arranged in the width direction, and a pickup device is carried in the groove and is located in the groove.
The work of pulling out one compact disc is performed. At this time, if a large error occurs in the position and verticality of the groove, it becomes impossible to accurately remove and insert the desired compact disc.

Further, when the overlapping surfaces of the individual wall members are not exactly flat surfaces and have irregularities, when these wall members are stacked on each other, the wall members are tilted, which causes As a result, the compact discs housed in the grooves formed between the wall members may be damaged by those wall members.

Further, since each wall member is thin, it is not possible to directly determine the deformation of the shape between the axes. As a result, the tray partitions may be deformed, and as a result, the compact discs housed in the grooves formed between the wall members may be damaged by the wall members.

Further, since only one disk storage groove is formed by the two adjacent wall members, the number of storages + 1 wall member is required, and assembling and adjusting it requires a lot of trouble.

[0009]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems in the conventional disc tray, prevents the wall member from tilting, obtains accurate groove position and verticality, and It is an object of the present invention to provide a disc tray that reduces the number of constituent parts, is easy to adjust, and does not scratch the disc signal surface.

[0010]

DISCLOSURE OF THE INVENTION In a disc tray according to the present invention, a tray main body in which a plurality of disc storage grooves for individually storing a plurality of discs are connected is attached to a tray support frame having side plates on both sides. A disc tray in which at least two shaft holes are provided in the tray body, support rods are slidably passed through the shaft holes, and both ends of the support rods are fixed to both end side plates of the tray support frame. It is a disc tray in which a plurality of integrally formed tray blocks having a disc storage groove for several to several tens of discs are continuously arranged in the width direction.

Further, the above-mentioned disc tray is such that the tray body is divided into front and rear blocks, and each tray block is provided with at least two shaft holes.

Further, in the above-mentioned disc tray, the disc accommodating groove of the tray body is integrally formed by a groove having a taper portion having a low central portion.

[0013]

As described above, according to the present invention, by dividing the tray body into several pieces, there is no complication and size increase of the mold such as complete integral molding, and two adjacent wall members. Therefore, compared to the case where one disc storage groove is formed, the accumulated error is small, and therefore the error and the inclination in the width direction can be prevented.

Further, by dividing the tray body into front and rear, deformation due to molding of a partition between the disk storage groove and the groove,
There is no deformation during assembly and the disc can be taken in and out without damaging the recording portion of the disc.

Further, since the disc housing groove is tapered, only the peripheral edge of the disc hits the tray, so that the disc can be taken in and out without damaging the recording portion.

[0016]

FIG. 5 shows the whole of one embodiment of the disc tray according to the present invention. The disc tray has two pentagonal side plates 1a and 1b arranged to face each other with a space therebetween, and a back plate 3 fixed to the side plates with screws 2. As shown in FIG. 6, between the two side plates 1a and 1b, three cylindrical support rods 4a,
4b and 4c are extended in parallel with each other, and a plurality of tray blocks, for example, four tray blocks are inserted through these support rods. The disk storage groove 8 is integrally formed on the upper surface of the tray block, and each tray block has, for example, 25 grooves.

The left side surface of the tray block has a shape as shown in FIG. 1, and the tray blocks are connected to form a tray body. The groove of the connection part is
It is formed by two adjacent tray blocks to form one disc storage groove. The storage groove is formed so that the back plate 3 side is curved in an arc shape (reference A) and the front side is linear (reference B). The disc 9 is housed along the curved portion A.

In FIG. 1 and FIG. 2, there is provided 3 for inserting the support rods 4a, 4b, 4c on the side surface of the tray block.
One shaft hole 14a, 14b, 14c is opened. The front-side shaft hole 14a is fitted with the front-side support rod 4a without any clearance so as not to rattle in any of the up, down, front and rear directions. The intermediate shaft hole 14b and the intermediate support rod 4b are
It is fitted so that there is no rattling in the vertical direction, but it is relatively movable in the front-back direction. Then, the upper shaft hole 14c and the support rod 4c are fitted with a considerably large gap so that they can be moved relative to each other in the up-down direction and the front-back direction.

When the disc tray as shown in FIG. 5 is produced, the tray blocks 5 in FIG. 1 are sequentially stacked with the support rods 4a to 4c inserted therethrough. FIG. 3 shows a case where the superposed state is viewed from above in the drawing as indicated by an arrow X in FIG. Also,
FIG. 4 shows a state where the superposed state is viewed from the front side of the disc tray as indicated by an arrow Y in FIG. As is clear from these figures, when the tray blocks 5 are overlapped with each other, the disc storage groove 8 is formed between the tray blocks adjacent to each other. FIG. 6 is a plan view of FIG.

When the tray blocks are overlapped with each other, the disc housing groove formed between the integrally formed disc housing groove on the upper surface of the tray block and the adjacent tray blocks is continuously formed. The grooves are V-shaped in cross section, and when the disks 9 are housed in these grooves, only the outer peripheral edges 9a and 9b of the disks are housed in the grooves 8 while being placed on the inclined surfaces of the V-shaped grooves. . Therefore, each disk 9 is securely held in position without being displaced in the groove 8, and the tray block 5, especially the thin portion 11 thereof, is held.
This surely prevents the disc surface of the disc 9 from being damaged.

FIG. 7 is a sectional view of the tray block. 8 to 14 show another modification of the tray block. These embodiments differ from the above-described embodiments shown in FIGS. 1 and 2 in that the tray block 5 is divided into a front block 5a and a rear block 5c, each of which has two shaft holes and four shaft holes. Support rods 4a, 4a ', 4
It is held by b and 4c.

FIG. 4 is a front view of the disk storage groove 8 of the tray block, which is formed in a tapered shape and has a circular disk 9.
Is stored as shown in the figure, and only the circumference of the disk contacts the groove.

[0023]

According to the present invention, by optimally selecting the number of disc storage grooves of one tray block, the die manufacturing cost can be saved without making the die large as in the case of complete integral molding. . As compared with a conventional rack in which a large number of wall members are stacked to form a disk storage groove, the accumulated error in the width direction of these grooves can be reduced and the inclination can be improved.
Further, since a large number of wall agents are not used, molding cost can be saved. Furthermore, since there is no general meat portion, weight reduction can be achieved.

By increasing or decreasing the number of tray blocks used, it is possible to set racks having different storage numbers.

By dividing the tray block into front and rear parts and eliminating the thin portion in the middle, the effect of preventing scratches on the signal surface of the disk is great.

Since the storage groove of the disk is integrally formed by forming a taper portion having a low central portion, the signal surface of the disk does not come into contact with the wall of the storage groove, and the effect of preventing scratches is great.

[0027]

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a wall member constituting a disc tray according to the present invention is viewed from a left side surface.

FIG. 2 is a perspective view showing a state in which a wall member constituting the disc tray according to the present invention is viewed from the right side surface.

FIG. 3 is a partial plan view showing a state in which a plurality of wall members in FIG. 1 are overlapped with each other.

FIG. 4 is a partial front view showing a state in which a plurality of wall members in FIG. 1 are overlapped with each other.

FIG. 5 is a perspective view showing the outer appearance of the entire disc tray.

FIG. 6 is a plan view of the disc tray shown in FIG.

7 is a cross-sectional explanatory view seen from the left side surface of the disc tray shown in FIG.

FIG. 8 is a perspective view of a modified example of the wall member when viewed from the left side surface.

9 is a perspective view of a modified example of the wall member of FIG. 8 when viewed from the right side.

10 is a partial plan view showing a state in which a plurality of wall members in FIG. 8 are overlapped with each other.

11 is a partial front view showing a state in which a plurality of wall members in FIG. 8 are overlapped with each other.

FIG. 12 is a perspective view showing the overall appearance of the disc tray in FIG.

13 is a plan view of the disc tray shown in FIG. 12. FIG.

14 is a cross-sectional explanatory diagram as seen from the left side surface of the disc tray shown in FIG.

[Explanation of symbols]

1a, 1b ... Side plate 2 ... Screw 3 ... Rear plate 4a, 4
b, 4c ... Support rod 5 ... Tray block 5a, 5
c ... Front / rear divided tray block 6 ... Lower surface plate 7 ... Sensor detection projection 8 ... Disc storage groove 9 ... Compact disc 11 ... Thin portion 14a, 14a ′, 14b, 14c
… Axial hole

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Kazunobu Matsumoto 1-5-1 Taito, Taito-ku, Tokyo Toppan Printing Co., Ltd.

Claims (3)

[Claims] 1. A tray main body, in which a plurality of disc storage grooves for individually storing a plurality of discs are continuously provided, is attached to a tray support frame having side plates on both sides, and at least two shaft holes are provided in the tray main body. In a disc tray in which a support rod is slidably passed through the shaft hole and both ends of the support rod are fixed to both end side plates of the tray support frame body, the tray body has several to several tens of discs. A disc tray comprising a plurality of integrally-formed tray blocks having storage grooves arranged in a row in the width direction. 2. The disc tray according to claim 1, wherein the tray body is divided into front and rear blocks, and each tray block is provided with at least two shaft holes. 3. The disc tray according to claim 1, wherein the disc accommodating groove of the tray body is formed by a groove formed of an integrally molded taper portion having a low central portion.