JPS6153789B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a disk cassette for storing compact disks and the like.

FIG. 1 shows a conventional disc player, in which a disc 3 is arranged on a turntable 2 formed in the center of a player body 1, and the turntable 2 is rotated, and a pick-up 4 is arranged radially around the rotation axis. By moving the disc 3, the signal recorded on the disc 3 is read out. This disk 3 is normally stored in a disk case 5 when not in use, making it cumbersome to put in and take out the disk 3, and having to hold the disk 3 directly by hand when taking it in and out, which stains the surface of the disk 3 and prevents accurate signal reproduction. It was causing a hindrance.

This invention was made to solve the above-mentioned drawbacks, and the outer peripheral surface of the disk is supported by a disk cassette, thereby simplifying the handling of the disk.

Hereinafter, this invention will be explained as an example in Figures 2 and 3.
The diagram will be explained.

In FIG. 2, reference numerals 10 and 11 denote an upper case and a lower case forming a cassette housing for accommodating the disk 3, and holes 10a and 11a through which the disk 3 can be inserted are formed, respectively. Further, inside the lower case 11, a circular recess 11b larger than the hole 11a and a continuous cross-shaped groove 11c are formed on the outer peripheral surface. 12 is the recess 11
The disk sheet 13 attached to the b side is a ring rotatably provided on the disk sheet 12, and has a cam surface 13a protruding from the inner periphery. 14 is a tension spring installed between the lower case 11 and the ring 13 and urges the ring 13 in a predetermined direction; 15 is an arcuate elastic member fixed to the disk seat 12 and engaged with the inner peripheral surface of the ring 13; , 16 is a cross-shaped operating lever inserted into the groove 11c, the tip of which is engaged with the ring 13 to rotate the ring 13 left and right.

FIG. 3 shows the state in which these members are assembled, with the operation lever 16 moved to the left, the ring 13 turned to the left against the spring 14, and the elastic member 15 retracted to close the disc. 3 is opened, and the disc 3 can be installed and rotated in the disc player main body 1. Furthermore, when taking out the disk cassette, the ring 13 is rotated to the right by moving the operating lever 16 to the right, and since the inner peripheral surface of the ring 13 protrudes as a cam surface 13a, the elastic member 15 The free end side of the disc 3 is pressed to deform it inwardly, making it possible to support the outer periphery of the disc 3 by pressing it from three directions. That is, by holding the cases 10 and 11, it is possible to attach and attach the disc to the player main body 1, and the fear of staining the disc 3 can be eliminated.

In the above embodiment, the openings 10a and 11a were formed in the upper case 10 and the lower case 11 in order to read signals from both sides of the disk 3. It may be configured so that an opening is provided, or it may be configured so that an opening is provided only in the portion facing the turntable 2 and the portion scanned by the pickup 4. Furthermore, the bow-shaped elastic member 1
It is also possible to make 5 into 2 pieces or 4 pieces,
By forming the tip end into a contact portion 15a having a U-shaped cross section as shown in FIG. 3B, the disk 3 can be held securely. Furthermore, by driving the operating lever 16 according to the operating state of the player body 1, it is possible to prevent the disc 3 from falling off due to inadvertence.

As explained above, according to the present invention, it is possible to eliminate the risk of contaminating the disc and to easily attach and detach the disc from the player body, and the practical value of the present invention is great.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing a conventional disc player, Fig. 2 is an exploded view showing a disc cassette that is an embodiment of this invention, and Fig. 3 is a partial sectional view showing the assembled state in Fig. 2. . In the figure, 1 is the player body, 2 is a turntable, 3 is a disk, 4 is a pick-up, 10 is an upper case, 11 is a lower case, 12 is a disk seat, 13 is a ring, 13a is a cam surface, 14 is a spring, 15 is an elastic member, and 16 is an operating lever.
Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of Claims] 1. An upper case and a lower case housing a disk, an elastic member provided in the case and supporting the outer periphery of the disk at a plurality of points, and a method for deforming the elastic member to support the outer periphery of the disk. The player is characterized by comprising a ring for supporting or opening, and an operation lever operated from the outer periphery of the case to move the ring, and at least one of the cases has an opening for linking with the player body. disk cassette. 2. The disk cassette according to claim 1, wherein the opening has a circular shape through which a disk can be inserted. 3. The disk cassette according to claim 2, wherein the elastic member is formed into an arcuate shape, and the tip end thereof is formed into a U-shaped cross section.