KR19990074179A - Disc storage cartridge - Google Patents

Abstract

The present invention relates to a disc housing cartridge, wherein the cartridge is provided with a cartridge case having a receiving hole at its upper and lower surfaces so that the turntable can be entered, and is mounted in the cartridge case and opened in at least one direction to open and close the receiving hole. A 12 cm cartridge and a small disc as a single recording and reproducing apparatus, by detachably combining the shutter and a separate adapter for inserting a cartridge manufactured so that the vertical length of the cartridge case is greater than or equal to the horizontal length into the 12 cm recording and reproducing apparatus. Cartridge can be used to improve the compatibility of the cartridge, can be stored in the cartridge can be used as a single-sided and / or double-sided playback of the disc as well as the length of the cartridge is equal to or longer than Shutter to seal the receiving hole It can be opened and closed in the direction.

In addition, by dividing the longitudinal length of the cartridge into two different distances, the cartridge can be manufactured to a minimum size.

Description

Disc storage cartridge

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc storage cartridge, and more particularly, to a disc storage cartridge in which information can be recorded and / or reproduced from a small disc housed in a cartridge by a recording / playback apparatus.

In general, the cartridge (cartridge) is to prevent dust, fingerprints or scratches on the surface of the disk accommodated therein to record the desired information without error and to protect the recorded information. 1 is a view illustrating a conventional cartridge in which a 12 cm disk is accommodated. The cartridge 100 is manufactured by molding a synthetic resin or the like, and a disk having a diameter of 12 cm is received therein.

Here, the cartridge 100 has a size of the horizontal (L) 137.5mm, vertical (L ') 124.5mm, the upper and lower surfaces of the cartridge 100, the receiving hole (10a) having a diameter (D) of 34mm Is formed. This accommodation hole 100a is for entering a turntable and chucking clamper of a recording and reproducing apparatus (not shown) for seating and chucking a 12 cm disc.

Here, the diameter of a turntable is 28-30 mm normally.

An opening hole 100b having a width w larger than its diameter communicates with the receiving hole 100a. The opening hole 100b is for exposing a portion of the disc, i.e., the data area, to the optical pickup device side to record and / or reproduce information on its recording surface.

On the front side of the cartridge 100, a shutter 102 for sealing the accommodation hole 100a and the opening hole 100b at the same time is mounted. The shutter 102 has a width W larger than the opening hole 100b.

The conventional cartridge configured as described above introduces the cartridge 100 into a dedicated recording and reproducing apparatus for recording and / or reproducing information from a 12 cm disc.

In other words, when the cartridge 100 is seated on a tray (not shown), for example, a seating means for taking out and retracting the cartridge 100 from the recording / reproducing apparatus, and then retracting the cartridge 100, the shutter is opened by the shutter opening / closing means mounted to the recording / reproducing apparatus. 102 moves in one direction to open the receiving hole 100a and the opening hole 100b.

Thereafter, when the turntable and the chucking clamper enter the accommodation hole 100a to seat and chuck the disk, the disk is rotated at a speed that can be recorded or reproduced by the spindle motor. At this time, the optical pickup device linearly reciprocated in the radial direction of the disc along the opening hole 100b to record and / or reproduce the information.

On the other hand, Figure 2 is a view showing a conventional cartridge in which a disk of 8cm in diameter is accommodated, the cartridge 110 is made of synthetic resin to have a size of the width (L) 95mm, length (L ') 90mm, Inside thereof, an 8 cm disc capable of single-sided reproduction is stored.

The cartridge 110 is formed with a receiving hole 110a having a diameter d of 25 mm. The accommodating hole 110a is for allowing the disc to be seated directly on the turntable when the cartridge 110 is inserted into the portable recording and reproducing apparatus. The diameter of the turntable is usually smaller than the accommodating hole 110a. The opening hole 110b communicates with 110a.

The front side of the cartridge 110 is equipped with a shutter 112 which is moved only in one direction to open and close the receiving hole (110a). As described above, the shutter 112 has a width W larger than the accommodation hole 110a.

Guide grooves 110c are formed at both side surfaces of the cartridge 110. The guide groove 110c is for opening the shutter 112 by the shutter opening / closing member when the cartridge 110 is inserted into the portable recording / playback apparatus.

In the conventional cartridge configured as described above, the guide groove 110c of the cartridge 110 is inserted into the shutter opening and closing member when the cartridge 110 is inserted into the portable recording and reproducing apparatus to record and / or reproduce information on an 8 cm disc. Accordingly, the shutter 112 moves in one direction to open the accommodation hole 110a. Then, as the turntable having a diameter smaller than the accommodation hole 110a enters the accommodation hole 110a, the disk is directly seated on the upper surface thereof.

Thereafter, the disk is rotated by the spindle motor, and the optical pickup apparatus records or reproduces the information while linearly reciprocating the radial direction of the disk.

However, as described above, when the cartridges in which 12 cm and 8 cm discs are accommodated are different in size (width x length), when the 8 cm cartridge is inserted into the 12 cm dedicated recording / reproducing apparatus, the disc is moved in the front, rear, left, and right directions. It is impossible to record information or reproduce the recorded information, and in order to solve this problem, the structure of the 12 cm dedicated recording and reproducing apparatus must be changed, resulting in an economic cost increase.

In addition, since the diameters of the receiving holes formed in the cartridges are different from each other, the turntables ø28 to 30 for seating the 12 cm discs cannot enter the accommodation holes ø25 of the 8 cm cartridge, so that the 12 cm cartridge and the 8 cm cartridge are recorded and reproduced. There was a problem that is not compatible with.

In order to solve the above problems, there has been provided a disc housing cartridge (Application No. 98-3865).

That is, a cartridge having a receiving hole extended to enter the turntable of the 12 cm recording and reproducing apparatus, a shutter mounted to the front side of the cartridge to seal a part of the receiving hole, and a rotating plate rotatably coupled to the shutter to seal the remaining part of the receiving hole There has been provided a disc housing cartridge.

However, in the above cartridge, since the shutter and the rotating plate are provided to seal all the receiving holes formed in the cartridge, not only the structure of the cartridge is complicated, but also the assembly workability and cost are increased.

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 for storing a small disk of less than 12 cm, and to be detachable for a separate adapter for introducing the cartridge into a 12 cm recording and reproducing apparatus. By combining, it is possible to use a cartridge in which a 12-cm cartridge and a small disk are accommodated in one recording and reproducing apparatus, thereby providing a disk storage cartridge which can improve the compatibility of the cartridge.

It is another object of the present invention to provide a dual-sided and / or double-sided reproducible disc in the cartridge, and in particular, a shutter for closing the receiving hole by lengthening or equaling the vertical length to the horizontal length of the cartridge is bidirectional. It is to provide a disk storage cartridge that can be opened and closed.

It is still another object of the present invention to provide a disc storage cartridge capable of manufacturing the cartridge to a minimum size by dividing the longitudinal length of the cartridge into two different distances.

1 is a perspective view showing a conventional cartridge in which a 12 cm disc is accommodated;

2 is a perspective view showing a conventional cartridge in which an 8 cm disc is accommodated;

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

4 is a perspective view of the cartridge shown in FIG. 3 assembled;

5 is a plan view showing a state of use of the disc storage cartridge according to the present invention, the shutter mounted on the cartridge is an open state,

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

7 is an exploded perspective view illustrating the cartridge of FIG. 6 and an adapter to which the cartridge is coupled;

8 is a state diagram of use of the cartridge which is another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10,30: cartridge case 10a, 30a: receiving hole

10b, 30b: Opening hole 10c: Slide groove

10d, 30c: Terminal hole 10e, 10e ': First and second escape grooves

40f: locking jaw 12,14,32,34: first and second storage members

22: cover 18, 24, 36, 44: first and second circular arc rib

26: elastic member 20, 40: shutter

30d: escape groove 46: torsion spring

50: adapter 50a: accommodation space

52: auxiliary shutter 52a: contact piece

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 receiving hole at its upper and lower surfaces to allow the turntable to enter. A cartridge case; A shutter mounted to the cartridge case and moving in at least one direction to open and close the accommodation hole; Then, the vertical length L 'of the cartridge case is achieved by being longer than or equal to the horizontal length L.

The diameter of the receiving hole according to the invention is achieved by being in the range of 29.5 to 34 mm.

The accommodation hole according to the present invention is achieved by having its center positioned on a line dividing the longitudinal length of the cartridge into two.

The accommodation hole according to a preferred embodiment of the present invention is achieved by being provided eccentrically to at least one side from a line dividing the cartridge into two parts.

The cartridge case according to the present invention is achieved by receiving a disk having a diameter of less than 12 cm.

The upper and lower surfaces of the cartridge case according to the preferred embodiment of the present invention are achieved by providing at least one escape groove having a width greater than or equal to the width of the shutter so that the shutter can be moved in either direction.

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

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

3 and 4 illustrate a cartridge according to the present invention. The cartridge of the present invention has a cartridge having a receiving hole 10a at its upper and lower surfaces so that the turntable and the chucking clamper of the 12 cm recording and reproducing apparatus can respectively enter. The shutter 10 is mounted to the case 10 and the front of the cartridge case 10 so as to be movable in left and right directions, and is hinged to the rear side of the cartridge case 10. The cover 22 further includes a cover for preventing detachment of the disk.

The cartridge case 10 includes a first storage member 12 and a second storage member 14 coupled thereto so that a disk of less than 12 cm is accommodated, and the first and second storage members 12 and 14 and a cover are provided. First and second arcuate ribs 18 and 24 are integrally injection-molded to support the disk from the front and rear sides, and inside the first and second storage members 12 and 14. An elastic member 26 is installed therein for returning the shutter 20 to the initial position.

Here, the first and second arcuate ribs 18 and 24 preferably have a diameter larger than the diameter of the disk for smooth rotation of the disk housed in the cartridge case 10.

On the front wall surface of the cartridge case 10, a slide groove 10c for guiding the shutter 20 is formed. A terminal hole 10d is formed in the rear corner portion of the cartridge case 10 so that the switch terminal for judging the state of the disk, that is, the state of recording, reproducing, or the like, is inserted.

First and second escape grooves 10e and 10e are disposed on the upper and lower surfaces of the cartridge case 10 so that the shutter 20 can be evacuated in at least one of the two directions when the disc accommodated therein is used upside down. ') Is formed.

A latching jaw 10f protrudes from both side surfaces of the cartridge case 10 and the boundary portions between the first and second escape grooves 10e and 10e 'so as to limit the opening distance of the shutter 20. An opening hole 10b having a length w larger than the diameter D of the accommodation hole 10a to expose the data area of the disk to the optical pickup device when the shutter 20 is opened. This is in communication.

Here, the diameter (D) of the accommodation hole (10a) is in the range of 29.5 ~ 34mm so that the turntable of the turntable (ø28 ~ 30mm) of the 12 cm recording and playback apparatus described above, and the chucking clamper to prevent the departure of the disk during rotation thereof, respectively enters Formed into.

In addition, the width W of the shutter 20 has a size capable of sealing both the receiving hole 10a and the opening hole 10b communicated thereto, and the first and second escape grooves in which the shutter 20 is evacuated. The width W '(W' ') of (10e) (10e') is greater than the width (W) of the shutter 20 so that a portion of the shutter 20 is not exposed to both sides with respect to the cartridge case 10. same.

Further, the vertical length L 'of the cartridge case 10 is the width W of the shutter for opening and closing the above conditions, that is, the accommodation hole 10a and the opening hole 10b, based on the retracting direction of the recording / playback apparatus. It is longer than the sum of the first and second escape grooves (W ') (W' '), and the length or the same as the horizontal length (L). The center of the accommodation hole 10a is located on a line whose center is bisected by the longitudinal length of the cartridge case.

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

In the cartridge case 10, a disc capable of single-sided reproduction and a disc capable of double-sided reproduction are accommodated in a combined manner. That is, the cover 22 hinged to the rear of the cartridge case 10 is opened to store the selected disk. At this time, the disk is supported and rotated by the first arcuate ribs 18 injection-molded on the first and second receiving members 12 and 14 and the second arcuate ribs 24 protruding from the lid 22. Keep this free state.

Subsequently, when recording or reproducing information from the disc, the cartridge case 10 has been previously filed with a small cartridge accommodating adapter (Application Nos. 97-68987) or a disc accommodating adapter with different sizes (97-97). 80284) into the 12 cm dedicated recording and reproducing apparatus.

Then, the shutter 60 mounted on the cartridge case 10 is in contact with the shutter opening and closing means to at least one of the first or second escape grooves 10e and 10e 'along the slide groove 10c. An optical pickup device which is moved to enter the turntable and the chucking clamper or to open the receiving hole 10a and the opening hole 10b so that the disk is directly seated on the turntable, and at the same time, the data area of the disk is linearly reciprocated radially. Is exposed to and records information from and / or from its area.

That is, the shutter 20 is moved to the escape groove until it is caught by the latching jaw (10f) of the cartridge case 10 produced in a size that satisfies the same condition or longer than the horizontal length.

At this time, the elastic member 26, such as a compression spring, is maintained in a compressed state, and the disk is directly seated on the turntable entering the accommodation hole 10a or chucked by the turntable and the chucking clamper to prevent separation.

On the other hand, Figure 6 is a view showing another embodiment of the disk storage cartridge according to the present invention, the cartridge 30 is a receiving hole (10) so that a disk of less than 12cm is seated directly on the turntable or the turntable and the chucking clamps enter ( It consists of a cartridge case 30 having a 30a) and a shutter 40 mounted on the front of the cartridge case 30 so as to be opened and closed in one direction, and hinged to the rear side of the cartridge case 30 to prevent the disc from being detached. It further includes a cover 42 to prevent.

The cartridge case 30 is provided with first and second housing members 32 and 34, each of which is injection molded with a first arc-shaped rib 36 on its inner circumferential surface so as to support the disk from the front side. 42, a second arcuate rib 44 supporting the disc from the rear side is formed.

The receiving hole 30a has an opening hole 30b having a length w larger than the diameter D of the receiving hole 30a so as to expose the data area of the disk to the optical pickup device when the shutter 40 moves. In communication with each other, the receiving hole 30a is formed to be biased to one side with respect to the cartridge case 30 so that the disk is eccentrically received.

One end of the torsion spring 46 for returning the shutter 40 moved in one direction to the cartridge case 30 and the shutter 40 is returned to the initial position, respectively. As described above, the terminal hole 30c is formed in the rear corner portion of the cartridge case 30 so that the switch terminal for judging whether the disc is recorded or not, and the shutter 40 in one direction on the upper and lower surfaces thereof. An escape groove 30d is provided to escape.

Here, the cartridge case 30 is longer than or equal to the horizontal length (L) of the longitudinal length (L '), the vertical length to open the shutter 40 to more than the diameter of the receiving hole (30a) It becomes longer than the distance L1 from the center of the accommodation hole 30a to one side of the cartridge case and the distance L2 to the other side, and the longitudinal length is smaller than three times the diameter of the accommodation hole 30a.

The width W of the shutter 40 has a length capable of closing the opening hole 30b, and the width W 'of the escape groove 30d is greater than or equal to the width W of the shutter 40. same.

7 is a view showing an adapter for applying the cartridge to the recording and reproducing apparatus, in which the adapter 50 has a receiving space 50a for accommodating the cartridge case 30 formed at the center thereof. On the front side, the auxiliary shutter 52 is mounted to be movable in the same direction as the shutter 40 so as to open and close the shutter 40.

Auxiliary shutter 52 is extended to the contact piece 52a to be caught on one surface of the shutter 40, the size of the adapter 50 is made of the same size as the cartridge for 12cm disc storage.

A distance l 'on both sides of the adapter 50 is l > l' to compensate for the eccentricity of the disc accommodated in the cartridge case 30. That is, the distance l from the inner surface of the accommodation space 50a to one side of the cartridge case 30 is greater than the distance l 'from the other inner surface of the accommodation space 50a to the other side of the disc. The center and the turntable center of the recording / playback apparatus coincide with each other.

The operation of the disc storage cartridge according to another embodiment of the present invention configured as described above will be described in detail with reference to FIG.

When the lid 42 hinged to the rear side of the cartridge case 30 is opened, and then a disc having a cross section of less than 12 cm is received, the disc is first injection molded into the first and second storage members 32 and 34. It is accommodated in an arcuate rib 36 and stored in an eccentric state with respect to the center of the cartridge case 30.

Thereafter, when recording or reproducing information from the disc using the recording / reproducing apparatus, when the cartridge case 30 is inserted into and coupled to the accommodation space 50a of the adapter 50, one side of the shutter 40 has an auxiliary shutter ( The contact piece 52a extended to 52 is caught, and the receiving hole 30a formed in the cartridge case 30 is located at the center with respect to the adapter 50 so that the turntable may enter.

When the adapter 50 is inserted into the recording / playback apparatus while the cartridge case 30 is coupled in the adapter 50, one end of the shutter opening / closing means contacts the auxiliary shutter 52 and the auxiliary shutter 52 and the shutter. As the torsion spring 46 is compressed as the evacuation groove 30d is opened, the accommodation hole 30a and the opening hole 30b communicating therewith open to record and / or reproduce information from the disc. .

As described above, according to the disc storage cartridge according to the present invention, a disc having a disc smaller than 12 cm is accommodated, and the cartridge is detachably coupled to a separate adapter for retracting the cartridge into a 12 cm recording and reproducing apparatus. It is possible to use a 12cm cartridge and a cartridge containing a small disk to improve the compatibility of the cartridge, and to accommodate a single-sided and / or double-sided disc in the cartridge. The shutters for closing the receiving holes can be opened or closed in both directions by lengthwise or equal to the vertical length.

In addition, by dividing the longitudinal length of the cartridge into two different distances, the cartridge can be manufactured to a minimum size.

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 (14)

A cartridge containing a disc seated on a turntable of a recording and reproducing apparatus, The cartridge includes a cartridge case having a receiving hole on the upper and lower surfaces thereof to allow the turntable to enter; A shutter mounted to the cartridge case and moved in at least one direction to open and close the accommodation hole; And, And a vertical length L 'of the cartridge case is longer than or equal to a horizontal length L. The disc storage cartridge according to claim 1, wherein the diameter of the accommodation hole is in the range of 29.5 to 34 mm. 2. The disc storage cartridge according to claim 1, wherein said accommodation hole is provided so that its center is located on a line dividing the longitudinal length of said cartridge into two. The disc storage cartridge according to claim 1, wherein the accommodation hole is provided to be eccentrically to at least one side from a line dividing the cartridge into two parts. 2. The disc storage cartridge according to claim 1, wherein the cartridge case accommodates a disc having a diameter of less than 12 cm. The disc storage cartridge according to claim 5, wherein the disc is a disc capable of single-sided reproduction and a disc capable of double-sided reproduction. 6. The disc storage cartridge according to claim 5, wherein the cartridge case further includes a cover on a rear side of the cartridge case to prevent separation of the disc. The disk of claim 1, wherein at least one escape groove having a width greater than or equal to the width of the shutter is provided on the upper and lower surfaces of the cartridge case so that the shutter can be moved in either direction. Storage cartridge. 9. The disc storage cartridge according to claim 8, wherein the escape groove is provided as first and second escape grooves so that the shutter can be moved in both directions. The disc storage cartridge according to claim 1, wherein the length of the cartridge is smaller than three times the diameter of the accommodation hole. 11. The disk storage cartridge according to claim 10, wherein a length of the cartridge is longer than a distance from the center of the accommodation hole to one side of the cartridge case is different from the other side. 11. The disc storage cartridge as claimed in claim 10, wherein the cartridge further comprises an adapter to which the cartridge is detachably coupled so that the cartridge can be used in the recording and reproducing apparatus. 13. The disc storage cartridge according to claim 12, wherein the adapter comprises an accommodation space formed at the center thereof to accommodate the cartridge, and an auxiliary shutter mounted to the front side to open and close the shutter. 13. The disk storage cartridge according to claim 12, wherein the adapter has a distance from the inner side of the accommodation space to one side of the adapter space being greater than the distance from the other inner side of the accommodation space to the other side.