JPH0467712B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a disk storage tray used in an optical disk system or the like in which digital signals are recorded at high density on the information tracks of a disk-shaped recording medium. .

Conventional Structure and Problems This type of disk storage tray is generally used for video disks that record video signals, digital audio disks that record encoded audio signals, and for other high-end computer-related devices. It is applied to disks for recording and reproducing density information.

In this system, encoded video signals, audio signals, and various other information are recorded as information tracks on a disk, and while the disk is rotated at high speed, light emitted from a light source such as a laser beam is used to record the information tracks on the disk. By focusing the light on the disk and reading the reflected light from the disk surface, the original recorded information is reproduced.

This optical information reading device can record information at an extremely high density, and has the advantage of being able to record information at a higher density, with higher accuracy, and with higher performance than conventional analog systems.

However, these discs that store information at a high density are made of resin materials such as acrylic or polycarbonate, and if the disc surface becomes scratched or has fingerprints on it, the performance may deteriorate significantly or the disc may become unplayable. Therefore, a storage tray to protect the disk becomes necessary.

A conventional storage tray will be explained below using a compact disk as an example.

Figure 1 shows a conventional storage tray and disk, with a diameter of
The disk 1, which has a hole diameter of 120 mm and a hole diameter of 15 mm and a thickness of 1.2 mm, is stored by press-fitting the center hole 4 of the disk into a locking part 3 having spring properties formed near the center of a storage tray 2 molded from a resin material. can be done. A convex portion 5 is formed on a part of the outer periphery of this locking portion so that the disk 1 is slightly lifted and the surface of the storage tray 2 does not come into direct contact with the disk surface.

However, with the above conventional configuration, when inserting the disk into the storage tray with your fingers, it is necessary to press the center of the disk with your fingers, and when removing the disk, normally only the outer periphery of the disk is lifted, but the periphery of the disk The disc will warp up and become difficult to remove, so in reality it is necessary to press the central part of the locking part 3 of the storage tray with your fingertips to weaken the springiness of the disc against the hole 4 while removing the disc. There is a problem in that it is difficult to attach and detach the disk. For this reason, conventional storage trays are only used to store discs to prevent them from being damaged, and are not suitable for playing by attaching the disc to a player while it is stored in the storage tray. It was hot.

OBJECT OF THE INVENTION The present invention solves the above-mentioned problems of the conventional art, and has a simple configuration that allows a storage tray to be mounted on a player with a simple operation and without directly touching the disc with fingers. To provide a storage tray and a player used therein, which can be mounted on a player with a disk stored in the storage tray, and when playback is completed, can be removed from the player while being stored again in the storage tray.

Structure of the Invention The present invention provides a storage tray that has a recess into which the disc can be mounted, at least one locking part that elastically clamps the disc in the radial direction, and a hole or opening into which a turntable can be inserted. The storage tray itself can be inserted into the player while being attached, the disc can be played with the disc separated from the storage tray, and after the playback is finished, the disc can be taken out while still being stored in the storage tray.

DESCRIPTION OF EMBODIMENTS FIG. 2 shows a first embodiment of the present invention. In FIG. 2, a storage tray 6 molded from a resin material is formed with a recess 7 having approximately the same diameter as the outer diameter of the disk in which a disk can be stored, and at the same time, in order to avoid contact between the surface of the disk and the surface of the recess. A slight step formed by a convex portion 8 is provided on the outer circumferential portion. This portion corresponds to the outermost circumferential portion of the disk, and is formed only in the portion that contacts the portion of the disk where no signal is recorded.

Furthermore, four locking portions 9, 10, 11, and 12 having spring properties that press the outer periphery of the disk toward the center are provided at positions symmetrical to each other in the surface direction of the disk. At the tip of each of the locking portions 9 to 12, when installing, push the locking portions 9 to 12 apart along the sloped portion, and when the disk is over a certain sloped portion, the disk can be completely clamped. On the other hand, claws 9a to 11a having oppositely inclined angles are formed.

In this way, since the locking parts 9 and 10 and between 11 and 12 are formed at symmetrical positions and separated from each other, between each locking part 9 and 10, and between 11 and 12.
The disk can be attached and detached by simply inserting one finger between the disks and 12, pinching the outer periphery of the disk, and pulling up, making it extremely easy to attach and detach the disk to and from the storage tray itself. To this end, it is desirable that the shape of the concave portion 7 of the tray between each of the locking portions 9 and 10 and between 11 and 12 be formed to be slightly smaller than the outermost diameter of the disk. When inserted into the player while stored in the tray, it is also used to automatically (mechanically) push up or push down the disc in order to remove it from the storage tray.

The hole 13 provided near the center of the tray recess 7 is unnecessary for the purpose of simply storing a disc, but when the storage tray is attached to the player with the disc stored, the hole 13 is inserted through the hole 13. It is used to clamp and rotate the disc directly with the turntable.

That is, in this case, the optical pickup for playing the disc is placed on the top surface (the surface facing the disc) in FIG. The recess 7 of the storage tray 6 resists the springiness.
It is lifted up from the ground, clamped, and directly rotated by a turntable. As the disk rotates, the information on the disk is reproduced by optical pickup. Figure 3 shows player 23 in this case.
The storage tray 6 is inserted into the insertion portion 23a of the player 23 with the disc 1 stored therein, and the disc is played back by the above-described operation.

Next, a second embodiment of the present invention will be described with reference to FIGS. 4, 5, 6, and 7.

The second embodiment described here is an embodiment in which a disc is stored in a storage tray with the signal side of the disc reversed from that of the first embodiment. The major difference from the first embodiment is that it is necessary to place the optical pickup on the lower side, that is, on the side facing the storage tray.
Opening portions 14 are provided in the portion where the turntable is inserted and the portion where the optical pickup tracks while approaching the disk. Figure 4 shows storage tray 1
6 is shown in perspective view.

FIG. 5 is a sectional view taken along the line A-A' in FIG. 4, showing a state in which the disk 1 is stored (solid line) and a state in which the disk 1 is clamped (broken line). The functions of the locking portions 9 to 12 when the disk 1 is stored in the recess 7 of the storage tray 16 are the same as in the first embodiment, so a description thereof will be omitted.

FIG. 6 shows the actual playback state in the player, in which the disc 1 rises from the storage tray 16, is clamped by the turntable 17 and the disc holder 18, and is rotated by the spindle motor 19. The optical pickup 20 moves linearly within the opening 14 to reproduce the disc 1. The shaft 21 is for traversing the optical pickup 20.

FIG. 7 shows the external appearance of the second embodiment in use. When the storage tray 16 containing the disk 1 is inserted into the insertion portion 22a of the player 22, the fifth
By the operation shown in Fig. 6, disk 1 is
is played.

The first and second embodiments are particularly suitable for in-vehicle players. That is, during operation, the disc 1 can be directly inserted into the players 22, 23 with the storage trays 6, 16 intact without touching them with fingers, and after the performance is finished, the disc 1 can be taken out while being stored in the storage trays 6, 16 again. I can do it. Therefore, the disk can be sufficiently protected without damaging it or getting it dirty with fingers.

It goes without saying that this explanation is not limited to in-vehicle players, but can be widely used for household players, computers, business use, etc.

FIG. 8 shows another embodiment in which the shape of the disk locking portion of the storage tray is modified, and the disk locking portions 24a and 24b are symmetrical in the radial direction of the disk and are mechanisms for clamping the disk in the thickness direction. It is becoming. That is, opening holes 25a,
25b is provided in order to mechanically push apart the locking portions 24a and 24b when attaching or detaching the disk. Although this structure has some difficulty in easily attaching and detaching disks with one's fingers, it is effective as a storage tray that is primarily intended for mechanical attachment and detachment inside a player.

In each of the above embodiments, the disk locking portions were arranged in pairs symmetrical in the radial direction of the disk.
It is not particularly limited to this form,
For example, the number may be one, as long as it can effectively lock the disk.

The storage tray connecting portions shown at 26 in FIG. 4 and 27 in FIG. 8 are connecting portions for maintaining the flatness of the storage tray. In the sectional view shown, the optical pickup 20 is located at a position where it does not come into contact even when reproducing the outermost signal portion of the disk.

Effects of the Invention As described above, according to the present invention, it is possible to insert the disc into the player with the disc stored in the storage tray and play it, and also to take out the disc from the playback player with the disc stored in the storage tray. It can be used without touching the disk directly with fingers, and the disk can be sufficiently protected.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a conventional storage tray and disk, FIG. 2 is a perspective view showing a storage tray according to the first embodiment of the present invention, and FIG. 3 is a perspective view of the storage tray in use.
FIG. 4 is a perspective view of a storage tray according to the second embodiment of the present invention, FIG. 5 is a sectional view for explaining the disk clamping operation in the second embodiment, and FIG. 6 is a reproduction of the second embodiment. A sectional view showing the state, Figure 7 is the second
FIG. 8 is a perspective view showing a storage tray according to a third embodiment of the present invention. 1... Disc, 4... Center hole, 6, 16, 28...
Storage tray, 9-12...locking part, 13...hole, 14
...opening, 17...turntable, 18...disc holder, 19...spindle motor, 20...optical pickup, 22, 23...player, 22a, 23
a...Insertion part.

Claims (1)

[Scope of Claims] 1. A recess for storing a disk, and at least one recess provided at the periphery of the recess for pressing the outer periphery of the disk accommodated in the recess toward the center.
A storage tray for a disk, comprising a locking part having two spring characteristics and a hole provided in the center of the recess. 2. A recess for storing a disk, at least one locking part having spring properties that is provided on the peripheral edge of the recess and presses the outer periphery of the disk stored in the recess toward the center, and the recess. an insertion section into which a disk storage tray is inserted, which has a hole provided in the center of the storage tray; an optical pickup provided on the side of the insertion section opposite to the disk; and a turntable that is inserted into the hole and clamps the disc by lifting it from the recess of the storage tray against the springiness of the locking part. 3. A recess for storing a disk, and at least one member provided on the periphery of the recess to press the outer periphery of the disk stored in the recess toward the center.
A storage tray for a disk, comprising a locking portion having two spring characteristics, and an opening extending from the center of the recess to the outer periphery. 4. A recess for storing a disk, and at least one at least one member provided on the periphery of the recess to press the outer periphery of the disk stored in the recess toward the center.
an insertion section into which a disk storage tray is inserted, the insertion section having a locking section having two spring characteristics, and an opening extending from the center of the recessed section to the outer periphery; an optical pick-up that moves within the range of the storage tray and is inserted into the center hole of the disk through the opening of the storage tray;
and a turntable that clamps the disc by lifting it from the recess of the storage tray against the springiness of the locking part.