KR19990071346A - Disc storage cartridge - Google Patents

Abstract

The present invention relates to a disc housing cartridge, and a cartridge case having accommodation holes on its upper and lower surfaces so that a turntable can be entered, and mounted to the cartridge case so as to be movable in left and right directions to seal a portion of the accommodation hole. A shutter including a shutter configured to be rotatably fitted to the shutter, a rotating plate for sealing the remaining portion of the accommodation hole which is not sealed by the shutter, and a lid which is hinged to the rear surface of the cartridge case to prevent detachment of the disk. By changing the structure of the cartridge so that a disc containing a disc having a different diameter of less than 12 cm can be inserted and / or taken out of a 12 cm disc-only recording and reproducing apparatus. Record / play back information on discs with less than diameter As a result, the compatibility of the recording and reproducing apparatus can be improved, and the economic cost can be reduced. In addition, the size of the cartridge in which the disc smaller than 12 cm is accommodated can be reduced.

Description

Disc storage cartridge

The present invention relates to a disc housing cartridge, and more particularly, to a disc housing cartridge in which a cartridge case containing a disc of less than 12 cm in diameter can be applied to a recording / playback apparatus for recording / reproducing information on a disc. It is about.

In general, a cartridge is for preventing dust, fingerprints, scratches, etc. on the surface of a disc used as a recording medium for recording / reproducing information so as to record desired information without errors and to view recorded information.

The cartridge is usually drawn in and / or taken out of the recording / playback apparatus to record / reproduce information on a 12 cm disc. The recording and reproducing apparatus includes a rotating means for rotating the disk to a constant speed, a driving portion and a driving circuit portion for driving the rotating means, an optical pickup apparatus for recording / reproducing information by irradiating a semiconductor laser beam to the recording surface of the disk, and necessary information. Is composed of a signal processing circuit section for recording and reproducing the data on a disc.

When information is recorded / reproduced on a 12 cm disc stored in the cartridge in this manner, the cartridge is inserted into the recording / reproducing apparatus. At this time, the cartridge is seated on a tray provided to be pulled in and out of the recording and reproducing apparatus.

Then, the shutter mounted to the cartridge is opened in one direction by the shutter opening and closing means. That is, the shutter opening and closing means in contact with one side of the shutter pushes the shutter in one direction by the input of the cartridge.

Then, as the receiving hole of the cartridge and the opening hole in communication therewith are opened, the disk is seated on a turntable having a diameter of usually 28 to 30 mm, which enters the receiving hole, chucked by the chucking clamper, the disk and the turntable and the chucking clamper Are rotated together by the spindle motor constituting the rotating means.

Thus, the disc is recorded / reproduced by the semiconductor laser beam irradiated in the optical pickup apparatus for linearly reciprocating transfer in its radial direction.

However, such a recording and reproducing apparatus is typically used exclusively for recording / reproducing information on a disc of a diameter of 12 cm stored in a cartridge, so that information on a disc having a diameter of less than 12 cm using the recording and reproducing apparatus is used. Could not be recorded / played back.

That is, since the receiving hole diameter of the cartridge containing the disc smaller than 12 cm is smaller than the diameter of the turntable (ø28 to 30 mm) for seating the disc, the disc cannot be seated and chucked when the cartridge is inserted into the recording / reproducing apparatus. Since a recording and reproducing apparatus for recording / reproducing information on less than one disc has to be provided, the economic cost is increased, and there is a problem in that compatibility is reduced by using a recording and reproducing apparatus suitable for the size of the disc.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a cartridge containing a disc having a different diameter of less than 12 cm and a cartridge having a diameter of less than 12 cm for a 12 cm disc-only recording and reproducing apparatus. By changing the structure, it is possible to record / reproduce information on a disc having a diameter of 12 cm or less by using a single recording and reproducing apparatus, thereby improving the compatibility of the recording and reproducing apparatus as well as saving economic cost. It is to provide a storage cartridge.

Another object of the present invention is to provide a disc storage cartridge capable of miniaturizing the size of a cartridge in which a disc of less than 12 cm is accommodated.

1 is an exploded perspective view showing a disc housing cartridge according to the present invention;

Figure 2 is a perspective view of the assembly disk storage cartridge according to the present invention,

3 is a perspective view showing a cartridge according to the present invention and a drive for retracting and / or withdrawing the cartridge according to the present invention;

4 is a cross-sectional view A-A of the cartridge shown in FIG. 2;

5 is a plan view of a disc housing cartridge according to the present invention;

FIG. 6 is a plan view showing a shutter mounted on the cartridge of FIG. 4 opened by a shutter opening and closing means installed in a drive; FIG.

7 is an exploded perspective view showing another embodiment of the disc storage cartridge according to the present invention;

8 is a perspective view of the cartridge assembled according to the present invention;

9 is a cross-sectional view B-B of the cartridge shown in FIG. 8;

10 is a plan view of a disc housing cartridge according to the present invention;

Fig. 11 is a use state diagram showing a state in which the shutter mounted on the cartridge of another embodiment of the present invention is opened by the shutter opening and closing means.

Explanation of symbols on the main parts of the drawings

10,70: Cartridge case 10a: Storage space

12,14: Upper and lower plates 12a, 14a, 70e: Slide groove

12b, 14b, 70d: Terminal hole 12c, 14c, 70a: Housing hole

12d, 14d, 70b: opening hole 12e, 70c, 12e ', 70c': first and second escape grooves

16,18: first and second locking projections 20,42: first and second circular arc ribs

30,80: shutter 30a: fitting hole

30b, 34b, 84c: curved portion 32: torsion spring

34: rotating plate 34a: guide groove

40,90: cover 70f: insertion hole

72: moving piece 74,106: torsion coil spring

76: guide rail 82: contact piece

84: bend portion 84a: open jaw

84b: slope 84d: protrusion

86: guide piece 100: plate

100a: arc shaped surface 100b: receiving groove

102: gear portion 104: projection

A feature of the present invention for achieving the above objects is a cartridge containing a disc seated on a turntable of a recording and reproducing apparatus, wherein the cartridge has a cartridge case having a receiving hole on the upper and lower surfaces thereof so that the turntable is entered; Wow; A shutter movably mounted to the cartridge case to seal a portion of the accommodation hole; A drive mounted to the shutter and configured to completely seal an opening of the accommodation hole which is not closed by the shutter, the drive having a cartridge case to be pulled in and / or drawn out; It is achieved by further comprising a shutter opening and closing means installed in the drive for opening and closing the shutter with respect to the receiving hole.

The longitudinal length of the cartridge case according to the present invention is achieved by being less than or equal to three times the diameter of the receiving hole.

The cartridge case according to the present invention is achieved by hinged coupling of a cover to prevent separation of the disc housed in the cartridge case.

The cartridge case and the shutter according to the present invention are achieved by being equipped with shutter return means for returning the shutter to the initial position.

The accommodating hole according to the present invention is achieved by communicating an opening hole having a width smaller than the diameter of the accommodating hole to serve as a transfer path of the optical pickup apparatus for recording / reproducing information on the disc.

In the shutter according to the present invention, the front end of the accommodating hole sealing means is achieved by processing the curved portions at the same radius as the radius of curvature of the accommodating hole so as not to seal the accommodating hole on one surface thereof when the shutter is moved. .

The receiving hole sealing means according to the present invention is achieved by being provided with a rotating plate having a pair of guide grooves that rotate simultaneously with the shutter when the shutter is linearly moved.

The shutter opening and closing means according to the present invention is achieved by being provided with an upper cover coupled to an upper portion of the drive, a link pivotally coupled to the upper cover, and an opening protrusion protruding from an end of the link.

Hereinafter, preferred embodiments of the disc storage cartridge according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 4 are views showing the cartridge according to the first embodiment of the present invention, in which the cartridge of the present invention is a cartridge case 10 and a cartridge case 10 in which a disk d having a diameter of less than 12 cm is accommodated. The shutter 30 is mounted to be opened and closed in the left and right directions on the front of the), and the cover 40 is hinged to the rear of the cartridge case 10 to prevent separation of the disk.

The cartridge case 10 includes an upper plate 12 and a lower plate 14 coupled thereto, and the upper and lower plates 12 and 14 have a storage space 10a so as to accommodate a single-sided or double-sided disc. Prepared. The cartridge case 10 and the cover 40 are provided with disk support means for supporting the disk.

On the front side wall surfaces of the upper and lower plates 12 and 14, slide grooves 12a and 14a having a “凹” shape are formed to guide the shutter 30. A plurality of recognition holes 12b and 14b are formed in the rear corner so that a recognition switch (not shown) for recognizing the state of the disc, i.e., whether the recording surface is single-sided or double-sided, or whether the disc is formatted, is inserted. It is.

Above and below the upper and lower plates 12, 14, an unillustrated turntable and chucking clamper 58 having a diameter of ø28 to 30 mm for seating and chucking a disc of 12 cm are entered or the disc d on the turn table. Receiving holes 12c and 14c each having a diameter of about 29.5 to 31.5 mm are formed so that the seat is directly seated. Opening holes 12d and 14d having a constant width w communicate with the receiving holes 12c and 14c to serve as a transfer path of the optical pickup apparatus.

In the upper and lower plates 12 and 14, a pair of first and second locking projections 16 and 18 are disposed at the boundary between the receiving holes 12c and 14c and the opening holes 12 and 14d. It protrudes to be located. First and second escape grooves 12e and 12e 'are provided on upper and lower surfaces of the upper and lower plates 12 and 14 so as to escape the shutter 30 in both directions.

Here, the width W '(W' ') of the first and second escape grooves 12e and 12e' is such that a portion of the shutter 30 is opposite to the cartridge case 10 as shown in FIG. In order not to be exposed, it is larger than or equal to the width W of the shutter, and the longitudinal length L of the cartridge case 10 is smaller than or equal to three times the diameter D of the accommodation holes 12c and 14c. The width W of the shutter 30 is smaller than the length D of the accommodation holes 12c and 14c.

The disc support means are injection molded on the inner surfaces of the upper and lower plates 12 and 14, respectively, and are integrally molded to the first arcuate rib 20 and the lid 40 supporting the disk from the front, and the second supporting the rear portion. It is provided with an arcuate rib 42. The diameters of the first and second arcuate ribs 20 and 42 have a diameter slightly larger than the diameter of the disk so that the disk accommodated in the storage space 10a can rotate freely.

The shutter 30 is manufactured in a "c" shape so as to seal both a part of the accommodating holes 12c and 14c and the opening holes 12d and 14d. The shutter 30 and the cartridge case 10 are provided with shutter return means for returning the shutter 30 to its initial position. The shutter return means is a torsion spring 32 having one end connected to the cartridge case 10 and the shutter 30, respectively. In addition, the fitting holes 30a are formed to correspond to each other in the shutter 30.

Here, the center of the fitting hole (30a) is to match the center of the disk accommodated in the storage space (10a) of the cartridge case (10).

On one surface of the shutter 30 which does not seal all the receiving holes 12c and 14c, one surface thereof is moved when the shutter 30 is moved to the first or second escape grooves 12e and 12e '. The curved surface portion 30b is provided so as not to seal the 14c).

The curved portion 30b is processed in a diagonal direction with respect to the shutter 30, and has the same radius of curvature R as the accommodation holes 12c and 14c.

The fitting hole sealing means is rotatably fitted in the fitting hole 30a to completely seal the receiving holes 12c and 14c exposed by the curved portion 30b of the shutter 30. The receiving hole sealing means is provided with a rotating plate 34 in which a pair of guide grooves 34a are formed to be rotated while being guided by the first catching protrusion 16 when the shutter 30 is opened and closed.

At the tip of the rotating plate 34, the curved portion 34b is machined to the same radius R as the radius of curvature R of the accommodation holes 12c and 14c. The curved portion 34b has the tip of the rotary plate 34 receiving holes 12c and 14c when the rotary plate 34 is moved to the first or second escape grooves 12e and 12e 'together with the shutter 30. ) Is not to be sealed.

Both surfaces of the rotating plate 34 are machined to the same radius R as the radius R of the receiving holes 12c and 14c to seal the receiving holes 12c and 14c exposed to the outside.

On the other hand, the shutter opening and closing means for pushing the shutter 30 in one direction to open the receiving holes 12c and 14c and the opening holes 12d and 14d is an upper portion of the drive 50 for loading and unloading the disk. For the upper cover 52 and the opening protrusion 56 and the drive 50 which protrude at the end of the link 54 and the link 54 which are pivotally coupled to the bottom thereof, and open the shutter 30. It is a torsion spring (not shown) which returns the shutter 30 to the initial position when the tray 60 is taken out.

The operation of the disc storage cartridge according to the first embodiment of the present invention configured as described above will be described in detail with reference to FIGS. 5 and 6.

In the cartridge case 10, a disc d that can be reproduced in one or both sides is stored. That is, the cover 40 coupled to the rear of the cartridge case 10 is opened to accommodate the disc. The disk accommodated in the storage space 10a has a first arc-shaped rib 20 injection molded into the upper and lower plates 12 and 14 and a second arc-shaped protrusion projecting on the front surface of the lid 40 as shown in FIG. Supported by the ribs 42, the rotation is kept free.

In the case of recording / reproducing information by using the above-described recording / reproducing apparatus, the disc housed in the cartridge as described above has a small cartridge accommodating adapter (application number 97-68987) or the size of the cartridge case 10 previously filed. The adapter is seated on a tray 60 that can be inserted and removed with respect to a recording / playback apparatus in a state where it is attached to another disk storage adapter (heading 97-80284) and then inserted into the drive 50.

Then, the shutter 30 which seals the receiving holes 12c and 14c and the opening holes 12d and 14d formed in the upper and lower plates 12 and 14 is an opening protrusion protruding from the end of the link 54. While contacting 56, it is moved along the slide grooves 12a and 14a to the first escape groove 12e.

Accordingly, the accommodation holes 12c and 14c and the opening holes 12d and 14d are simultaneously opened by the movement of the shutter 30 so that the turntable and the chucking clamper 58 enter the accommodation holes 12c and 14c. The disk is mounted and chucked, and the optical pickup apparatus records / reproduces information on the disk while linearly reciprocating the radial direction of the disk along the opening hole.

At this time, the torsion springs 32, one end of which is connected to the cartridge case 10 and the shutter 30, respectively, remain compressed as shown in FIG. The rotating plate 34 opens the receiving holes 12c and 14c while gradually rotating from 0 to 90 ° by the shutter 30 moving to the first escape groove 12e.

That is, when the rotating plate 34 is moved to the first escape groove 12e, one surface of the rotating plate 34 abuts on the first catching protrusion 16, and at the same time, the first catching protrusion 16 is the rotating plate 34. It is inserted into the guide groove (34a) of.

After that, when the shutter 30 is completely moved to the first escape groove 12e, the curved portions 30b and 34b respectively processed on the shutter 30 and the rotating plate 34 are rotated on the lower surface of the shutter 30. As the 34 is in close contact, the receiving holes 12c and 14c are completely opened.

On the other hand, if the tray 60 is removed from the drive 50 to replace the disc in use or to record and / or play information on another recording surface of the disc, the link 54 returns to the initial position by the torsion spring. The shutter 30 opens and closes a part of the accommodating holes 12c and 14c and the opening holes 12d and 14d at the same time while being restored by the restoring force of the compressed torsion spring 32.

Then, the rotating plate 34 fitted to the fitting hole (30a) of the shutter 30 is operated in the reverse order described above and the curved surface portion of the shutter 30 while rotating in the reverse direction until a part of the second locking projection 18 is caught. The openings 12c and 14c opened by 30b are completely opened and closed.

7 to 9 are diagrams illustrating a disc housing cartridge according to a second embodiment of the present invention, wherein the cartridge of the present invention has accommodation holes 70a at upper and lower surfaces thereof so that discs capable of single-sided or double-sided reproduction are accommodated. And a cartridge case 70 in which the and opening holes 70b are formed, respectively, and a shutter 80 for opening and closing the accommodation hole 70a and the opening hole 70b by mounting the cartridge case 70 and the cartridge case 70. Hinge coupled to the rear of the) further comprises a cover 90 to prevent the departure of the disk.

On the upper and lower surfaces of the cartridge case 70, first and second escape grooves 70c and 70c 'are provided at both sides of the accommodating hole 70a so as to escape the shutter 80. A plurality of recognition holes 70d are formed at the side corners for recognizing the state of the disc accommodated therein.

Here, the diameter of the receiving hole 70a is processed to 29 ~ 31.5mm to enter the turntable on which the disk is seated, as described above, the width W2 of the first and second escape grooves 70c, 70c ' The width W3 is greater than or equal to the width W1 of the shutter so that one surface of the shutter 80 is not exposed to both sides with respect to the cartridge case 70, and the vertical length L of the cartridge case 70 is the accommodation hole 70a. ) Is less than or equal to three times the length of diameter (D). The width W1 of the shutter 80 is smaller than the length of the diameter D of the accommodation hole 70a.

On the front side of the cartridge case 70, shutter return means for returning the shutter 80 to the initial position is provided. The shutter return means includes a moving piece 72 moving left and rear along the slide groove 70e of the cartridge case 70 and a torsion coil spring having one end connected to the cartridge case 70 and the moving piece 72, respectively. (74).

The shutter 80 is manufactured to seal a part of the accommodating hole 70a and the opening hole 70b altogether, and a contact piece for moving the shutter piece 80 in contact with the moving piece 72 on both inner surfaces of the shutter 80. 82) protrudes.

A bent portion 84 having an inclined surface 84b is formed at a rear portion of the shutter 80, that is, at a portion of the receiving hole 70a to seal the opening jaw 84a. The guide pieces 86 are integrally bent to move along the guide rails 76 protruding from the upper and lower surfaces of the upper and lower surfaces.

Here, both sides of the bent portion 84 have a receiving hole so that one surface thereof does not block the receiving hole 70a when the shutter 80 is completely moved to the first or second escape grooves 70c and 70c '. The curved surface portion 84c having the same radius of curvature as 70a) is machined. The curved portion 84c minimizes the width W1 of the shutter 80 to minimize the length L of the cartridge case 70 and the width W2 of the first and second escape grooves 70c and 70c '. (W3) is made small.

The upper and lower surfaces of the cartridge case 70 are accommodated by the bent portion 84 as shown in FIG. 9 to seal all the remaining portions of the accommodation hole 70a exposed by the curved portion 84c of the shutter 80. A receiving hole opening and closing means is provided. The accommodating hole sealing means is inserted into a pair of insertion holes 70f formed in the cartridge case 70, respectively, and is provided as a plate 100 which rotates simultaneously in the clockwise and counterclockwise directions when the shutter 80 is moved.

The outer surface and the inner surface of the plate 100 are machined with an arc surface 100a with a radius R equal to the radius of curvature of the receiving hole 70a and the curved portion 84c of the shutter 80.

One end of the plate 100 is machined to be geared to each other 102 is processed, the bottom surface is a projection 104 is inserted into the insertion hole 70f protrudes, the projection 104 in the initial position of the plate 100 The torsion coil spring 106 which returns to the is interposed.

One end of the torsional coil spring 106 is connected to the cartridge case 70 and the plate 100, respectively, and the receiving groove 100b has a predetermined depth in the plate 100 to accommodate a part of the torsional coil spring 106. Is formed.

Here, the other end of the plate 100 is in contact with the inclined surface (84b) inclined to both sides of the bent portion 84, the open jaw (when the shutter 80 is moved at the boundary between the bent portion 84 and the inclined surface (84b) It is preferable that the locking projection 84d protrudes to prevent the detachment of the plate 100 with respect to the surface of the 84a) or prolongs the length of the open jaw 84a.

The operation of the disc storage cartridge according to the second embodiment of the present invention configured as described above will be described in detail with reference to FIGS. 10 and 11.

A disc capable of single-sided or double-sided reproduction is accommodated in the cartridge case 70, and then the cartridge case 70 is seated on the above-mentioned adapter, and the cartridge case 70 is then driven by the drive 50 of the recording / reproducing apparatus described in FIG. ), The shutter 80 mounted on the cartridge case 70 may include a shutter opening / closing means installed in the drive 50, that is, an opening protrusion 56 protruding from the end of the link 54 as shown in FIG. 11. While being in contact with each other, the first or second escape grooves 70c and 70c 'are moved along at least one of the escape grooves along the slide groove 70e.

At this time, the moving piece 72 fitted in the slide groove 70e of the cartridge case 70 is pushed in the same direction as the moving direction of the shutter 80 while compressing the torsion coil spring 74 while contacting the contact piece 82. .

Then, the plates 100 respectively inserted into the pair of insertion holes 70f formed in the cartridge case 70 are bidirectionally along the inclined surface 84b of the open jaw 84a until the movement of the shutter 80 is completed. At the same time, the accommodation hole 70a is completely opened in accordance with the next locking protrusion, beyond the locking protrusion 84d protruding from the opening jaw 84a.

Here, the plate 100 in which the gears 102 are fitted to each other always opens simultaneously in both directions regardless of the moving direction of the shutter 80 to open all the receiving holes 70a, and the protrusions of the plate 100 104) The torsional coil spring 106 interposed outside keeps the compressed state.

In other words, the plate 100 has an arc-shaped surface (machined on the inner surface of the plate 100 as it is gradually opened in both directions by the inclined surface 84b of the open jaw 84a while the shutter 80 moves to the escape groove. 100a is received at the lower portion of the bent portion 84 of the shutter 80 while completely spaced apart from the accommodation hole 70a.

Therefore, the accommodation hole 70a and the opening hole 70b are completely opened by the movement of the shutter 80 so that the turntable and the chucking clamper 58 enter the accommodation hole 70a while the disk is seated and chucked, and the optical pickup The device records / reproduces information on the disc while linearly reciprocating the radial direction of the disc along the aperture hole 70b.

On the other hand, if the tray 60 is pulled out to the drive 50 to replace the disc in use or to record and / or play information on another recording surface of the disc, the shutter 80 may be subjected to the torsion coil spring as described above. By returning to the initial position by 74, a part of the accommodating hole 70a and the opening hole 70b are simultaneously opened and closed, and the plate 100 is rotated in the reverse direction to be machined on both sides of the bent portion 84 of the shutter 80. It moves to the curved part 84c side, and opens and closes the accommodation hole 70 opened by the curved part 84c of the shutter 80 completely.

As described above, according to the disc storage cartridge according to the present invention, the structure of the cartridge is changed so that a disc containing a disc having a different diameter of less than 12 cm is inserted and / or withdrawn, for a 12 cm disc-only recording and reproducing apparatus. Thus, information can be recorded / reproduced on a disc having a diameter of 12 cm or less by using a single recording and reproducing apparatus, thereby improving the compatibility of the recording and reproducing apparatus and reducing economic costs. In addition, the size of the cartridge in which the disc smaller than 12 cm is accommodated can be reduced.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (21)

A cartridge containing a disc seated on a turntable of a recording and reproducing apparatus, The cartridge may include a cartridge case having accommodation holes at upper and lower surfaces thereof to allow the turntable to enter; A shutter movably mounted to the cartridge case to seal a portion of the accommodation hole; It is composed of a receiving hole sealing means mounted to the shutter to completely seal the opening of the receiving hole which is not closed by the shutter, A drive into and out of the cartridge case; And a shutter opening and closing means installed in the drive to open and close the shutter with respect to the accommodation hole. The disc storage cartridge according to claim 1, wherein the length of the cartridge case is less than or equal to three times the diameter of the accommodation hole. The disc storage cartridge according to claim 1, wherein the cartridge case is made to accommodate a single-sided or double-sided disc. The disc storage cartridge according to claim 1, wherein a cover for preventing separation of the disc stored in the cartridge case is hinged to the cartridge case. The disk storage cartridge according to claim 1, wherein first and second escape grooves are provided on upper and lower surfaces of the cartridge case to escape the shutter in both directions or in one direction. The disc storage cartridge according to claim 1, wherein the cartridge case and the shutter are provided with shutter returning means for returning the shutter to the initial position. The method of claim 1, wherein the receiving hole is connected to the opening hole having a length smaller than the diameter of the receiving hole to serve as a transfer path of the optical pickup device for recording / reproducing information on the disk; Disc storage cartridge. The disk according to claim 1, wherein the upper and lower surfaces of the cartridge case protrude first and second locking projections at the boundary between the receiving hole and the opening hole so as to allow the receiving hole sealing means to rotate. Storage cartridge. The disc storage cartridge according to claim 1, wherein the diameter of the accommodation hole is about 29.5 to 31.5 mm. The method of claim 1, wherein the front end of the receiving hole sealing means in the shutter is that the curved portion is processed with the same radius as the curvature radius of the receiving hole so as not to seal the receiving hole on one surface thereof when the shutter is moved. The disk storage cartridge characterized by the above-mentioned. The disk storage cartridge according to claim 1, wherein the shutter comprises a bent portion having an open jaw having an inclined surface at a portion for sealing the receiving hole and a guide piece extending at the rear end of the bent portion. 12. The disc storage cartridge according to claim 11, wherein the opening jaw protrudes an engaging protrusion for preventing the other end of the plate from being separated from the surface of the opening jaw when the shutter moves. The disc storage cartridge according to claim 11, wherein curved surfaces having the same radius of curvature as the receiving holes are processed on both surfaces of the bent portion. 2. The disc storage cartridge according to claim 1, wherein the accommodation hole sealing means is provided with a rotating plate having a pair of guide grooves which simultaneously rotate when the shutter is linearly moved. The disc housing cartridge according to claim 1, wherein the accommodation hole sealing means is inserted into a pair of insertion holes formed in the cartridge case to be simultaneously rotated in both directions when the accommodation hole is opened. The disc housing cartridge according to claim 15, wherein an outer surface and an inner surface of the plate are processed to have an arc surface with a radius equal to the radius of curvature of the curved portion of the accommodation hole and the shutter. 16. The plate according to claim 15, wherein the plate is provided with a gear portion which is fitted to one end thereof, a projection inserted into the insertion hole, and a receiving groove formed to receive a portion of the torsion coil spring for returning the plate to the initial position. The cartridge for disk storing. The disc housing cartridge according to claim 1, wherein the shutter opening and closing means includes an upper cover coupled to the top of the drive, a link pivotally coupled to the upper cover, and an opening protrusion protruding from an end of the link. . 6. The disc storage cartridge according to claim 5, wherein the widths of the first and second escape grooves are greater than or equal to the widths of the shutters so that a part of the shutters are not exposed to both sides with respect to the cartridge case. 7. The disc storage cartridge according to claim 6, wherein the shutter return means comprises a torsion spring having one end connected to the cartridge case and the shutter, respectively. 7. The disk according to claim 6, wherein the shutter return means comprises a moving piece moving left and right along a slide groove of the cartridge case and a torsion coil spring having one end connected to the cartridge case and the moving piece, respectively. Storage cartridge.