JPH0467711B2 - - 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, etc., 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 portion 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 it is actually necessary to press the center part of the locking part 3 of the storage tray with your fingertips to weaken the spring force against the hole 4 of the disc while removing the disc. However, there is a problem in that it is difficult to attach and detach the disk.

There is also the problem that the disk may be damaged or soiled due to incorrect operation when attaching or detaching the disk.

Purpose of the invention The present invention solves the above-mentioned conventional problems.
To provide a disk storage tray that has a simple configuration and allows disks to be attached and detached by simple operations.

Structure of the Invention The present invention is a storage tray that includes a recess into which a disk can be attached and a locking portion that clamps the disk in the radial direction, and allows the disk to be easily attached and detached with two fingers.

DESCRIPTION OF THE EMBODIMENT FIG. 2 shows an embodiment of the present invention.
In FIG. 2, a storage tray 6 molded from a resin material is formed with a recess 7 that can accommodate a disk and has a diameter approximately the same as the outer diameter of the disk, and at the same time, in order to avoid contact between the surface of the disk and the surface of the recess. A step is provided by a slight protrusion 8 provided on the outer periphery. 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.

Further, 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. In addition, at the tips of each of the locking parts 9 to 12,
At the time of installation, the locking parts 9 to 12 are pushed along the sloped part while being pushed apart, and when the disc is over a certain slope, claws 9a to 11a having opposite slope angles are formed so that the disk can be completely clamped. are doing.

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 easily removed from the tray by placing one finger between 1 and 12, pinching the outer periphery of the disk, and pulling it up, and the disk can be easily stored in the tray by performing the reverse operation. can. For this purpose, it goes without saying that it is desirable that the shape of the concave portion 7 of the tray between the respective locking portions 9 and 10 and between 11 and 12 be formed to be slightly smaller than the outermost diameter of the disk.

In addition, the hole 13 provided in the center of the recess 7 of the tray is
Although it is unnecessary for the purpose of simply storing the disc, in special cases, when the disc is attached to the playback player with the disc still attached to the storage tray, the disc can be clamped through this hole.
It can be used when rotating the disc directly on a turntable.

In each of the above embodiments, the disk locking portions are arranged in pairs symmetrical in the radial direction of the disk, but the structure is not particularly limited to this, and for example, there may be only one disk locking portion. In short, any structure that can effectively lock the disk may be used.

Effects of the Invention As described above, according to the present invention, a disk can be easily attached to and removed from a recessed portion of a storage tray without rattling by simply picking up the outer peripheral portion of the disk with two fingers.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a conventional storage tray and disk, and FIG. 2 is a perspective view showing a tray according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Disk, 2...Storage tray, 3...Locking part with spring properties, 4...Hole of disk, 5...Convex part, 6
...Storage tray, 7...Concave portion, 8...Convex portion, 9, 10,
11, 12...Locking portion, 13...Tray hole.

Claims (1)

[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, which is provided with a locking part having two spring characteristics.