KR19990060065A - Cartridges for magneto-optical disks of different sizes - Google Patents

Abstract

The present invention relates to a cartridge for receiving magneto-optical disks of different sizes, comprising a single cartridge for accommodating magneto-optical disks of different sizes, the cartridge being pivotable to prevent the detachment of a 12 cm magneto-optical disk. Hingedly coupled, the cartridge is provided with first and second seating grooves for seating magneto-optical disks of different sizes, and the front side of the cartridge protects the magneto-optical disks and simultaneously stores their data areas. By opening and closing the shutter in both directions to expose the side, the magneto-optical disc of 12 cm or 8 cm can be stored in a single cartridge, thereby improving the compatibility of the tray in which the cartridge is seated, and especially the 12 cm and 8 cm Information can be recorded and reproduced accurately on and from the magneto-optical disc.

Description

Cartridges for magneto-optical disks of different sizes

The present invention relates to a cartridge for receiving magneto-optical disks having different sizes, and more particularly, to a single cartridge manufactured in a size of 12cm, the size of the magneto-optical disk having a diameter of 12cm or 8cm can be combined. It relates to another magneto-optical disk storage cartridge.

In general, a magneto-optical disk (D) divided into a hub area where no information is recorded and a data area capable of recording and reproducing information is accommodated, thereby preventing dust, fingerprints, or scratches on the surface of the disk, thereby obtaining an error of desired information. The conventional 12cm magneto-optical disk storage cartridge for recording and protecting the recorded information without the above) is accommodated in the upper part 12 and the lower plate 14 in which a synthetic resin or the like is molded, as shown in FIGS. 1 and 2. The cartridge 10 is combined to have a space 10a, and the lid 16 is pivotally hinged to the rear side of the cartridge 10 to prevent the magneto-optical disk D mounted from being inserted into the rotating space. do.

A pair of first arcuate ribs 18 protrude from the inner circumferential surface of the upper and lower plates 12 and 14 and the front of the magneto-optical disk accommodated in the storage space 10a, respectively, and the lid 16 Second arcuate ribs 20 are formed inwardly to support the magneto-optical disk from the rear, and the upper and lower plates 12 and 14 expose the data area including the hub area of the disk to the optical pickup device. Openings 12a and 14a are formed to record and / or reproduce information.

At the rear edge of the lower plate 14, a positioning hole 14b is formed so that a positioning pin (not shown) provided in the apparatus penetrates the cartridge 10 into the recording / reproducing apparatus. (14b) On one side, a terminal hole 14c is formed to insert a switch terminal of a recording / playback apparatus for judging whether or not to record information on a magneto-optical disk, and shutter opening / closing means (not shown) on the front side of the cartridge 10. Shutter 22 is mounted to open in one direction.

In the conventional cartridge configured as described above, the magneto-optical disk D having a diameter of 12 cm is stored in the storage space of the cartridge 10, and then the lid 16 hinged to the rear side of the cartridge 10 is closed. The disk is rotatably supported by the first and second arcuate ribs 18, 20.

Thereafter, the cartridge 10 is seated on a tray (not shown) which can be taken out and / or retracted from the front and the inside of the recording and reproducing apparatus, and then retracted into the recording and reproducing apparatus. The shutter 22 has a hub area where information is not recorded on the rotating means which rotates the magneto-optical disk at a speed capable of recording or reproducing while the end of the shutter opening and closing means is brought into contact with the end of the shutter. This is in close contact.

The optical pickup apparatus radiates a semiconductor laser beam in the data area while linearly reciprocating the radial direction of the data area rotated by the rotating means, thereby recording or reproducing information in / from the area.

However, conventional cartridges configured as described above are usually designed to receive only magneto-optical disks having a diameter of 12 cm, so that when a small disk, for example, a disk having a diameter of 8 cm, is stored in the cartridge, Not only is the flow generated in the front and rear and right and left directions, but also the adjustment of the storage position is difficult, and this causes a problem in that information cannot be accurately recorded and reproduced to / from an 8 cm disc.

The present invention is to solve the above problems, an object of the present invention is to change the structure of the cartridge to accommodate a 12cm or 8cm magneto-optical disk in a single cartridge, so that the cartridge is seated The present invention provides a cartridge for storing a magneto-optical disk having a different size, in which the compatibility can be improved, and in particular, information can be accurately recorded and reproduced to and from the magneto-optical disks of 12 cm and 8 cm.

1 is an exploded perspective view schematically showing a conventional 12 cm magneto-optical disk and a cartridge for storing the same;

2 is a perspective view of the cartridge shown in FIG.

3 is an exploded perspective view showing a cartridge for receiving magneto-optical disks of different sizes according to the present invention;

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

5 is a plan view showing a state in which a 12 cm magneto-optical disk is accommodated in a cartridge according to the present invention;

Fig. 6 is a plan view showing a state in which an 8 cm magneto-optical disk is accommodated in a cartridge according to the present invention.

Explanation of symbols on the main parts of the drawings

40: cartridge 40a: storage space

42: shutter 44,46: upper and lower plates

44a, 46a: opening 48: spring

50,52: first and second seating groove 54: guide surface

56: step 60: cover

Features of the present invention for achieving the above object, one cartridge provided to accommodate the combined magneto-optical disks of different sizes; A lid rotatably coupled to the cartridge to prevent detachment of a 12 cm magneto-optical disc housed in the storage space of the cartridge; And mounting means provided in the cartridge for seating the magneto-optical disks of different sizes, respectively; And a shutter capable of opening and closing in both directions on the front side of the cartridge so as to protect the magneto-optical disks seated on the seating means and to expose the data area to the optical pickup device side.

The seating means according to a preferred embodiment of the present invention is achieved by being provided with first and second seating grooves formed in the lower plate and the upper plate, respectively, to seat the magneto-optical disks of 12 cm and 8 cm.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a magneto-optical disk storage cartridge having different sizes according to the present invention will be described in detail with reference to the accompanying drawings.

3 and 4 are views showing a magneto-optical disk storage cartridge according to the present invention, in order to be able to combine the disk (D) of 12cm or the magneto-optical disk (D ') having a diameter of 8cm. A cartridge 40 having a storage space 40a is provided, and the lid 60 is pivotally hinged to the rear side of the cartridge 40 so as to prevent the magneto-optical disks D and D 'from being separated. .

The cartridge 40 is provided with mounting means for seating the 12 cm and 8 cm magneto-optical disks D and D ', respectively, and the front side of the cartridge 40 protects the magneto-optical disks and their data area. In order to expose the to the optical pickup device, a shutter 42 that is openable in both directions is mounted.

The cartridge 40 is composed of an upper plate 44 having openings 44a and 46a and a lower plate 46 that are coupled to each other so as to accommodate the selected magneto-optical disk. A spring 48 for returning the opened shutter 42 to the initial position upon taking out the cartridge 40 relative to the device is fixed to cross the opening 46a.

The seating means is formed on the upper surface of the lower plate 46, so as to seat the first seating groove 50 on which the magneto-optical disk D of 12 cm is seated and the magneto-optical disk D 'of 8 cm. The second seating groove 52 is formed in the bottom surface, the guide surface 54 is extended to the inlet portion of the cartridge 40 in the second seating groove 52 to accurately adjust the storage position of the disk of 8cm. The stepped portion 56 is formed at the boundary between the second seating groove 52 and the guide surface 54 to prevent the magneto-optical disk from being separated.

The operation of the magneto-optical disk storage cartridge having different sizes according to the present invention configured as described above will be described in detail with reference to FIGS. 5 and 6.

When storing the 12 cm magneto-optical disk D in the cartridge 40 of the present invention, the lid 60 pivotally hinged to the rear side of the cartridge 40 is opened, and then into the storage space 50a. When the lid 60 is closed in the state where the magneto-optical disk is accommodated, the magneto-optical disk is freely rotated in the first seating groove 50 processed in the lower plate 46 at a predetermined depth, that is, the thickness of the disk.

Thereafter, when the cartridge 40 is seated on the tray and then inserted into the recording and reproducing apparatus for recording or reproducing information to / from a 12 cm magneto-optical disk, the shutter 42 mounted to the cartridge 40 Is moved in one direction while being in contact with the shutter opening and closing member to open the openings 44a and 46a, thereby exposing the data area of the disc to the optical pickup device to record and / or reproduce information in and from the area.

On the other hand, when removing the 12cm disk (D) stored in the cartridge 40 and storing the 8cm magneto-optical disk (D ') in the storage space (40a) thereof, the cartridge 40 as shown in FIG. Flip over 180 ° and open the hinged lid 60 on its rear side.

Then, when the disc is accommodated on the guide surface 54 extending from the inlet portion of the cartridge 40 to the second seating groove 52, the magneto-optical disc is mounted along the guide face 54 to the second seating groove. It is seated at 52. At this time, as the rear of the 8cm magneto-optical disk is caught by the stepped portion 56, the disk can prevent the flow and detachment in the front and rear and left and right directions with respect to the cartridge 40, and can accurately adjust the storage position of the disk. will be.

In this state, when the cartridge 40 is seated on the tray and then retracted into the recording / reproducing apparatus as described above, the shutter 42 mounted on the cartridge 40 is opened by the shutter opening and closing means 44a ( 46a) is opened to expose the 8cm magneto-optical disk stored in the storage space 40a to the optical pickup device side.

As described above, according to the different sized magneto-optical disk storage cartridge according to the present invention, the structure of the cartridge can be changed so that the magneto-optical disk of 12 cm or 8 cm can be stored in a single cartridge so that the cartridge is seated accordingly. The compatibility of the trays is improved, and information can be recorded and reproduced accurately on and from the magneto-optical disks of 12 cm and 8 cm, in particular.

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 (5)

A cartridge provided for accommodating different sizes of magneto-optical disks; A lid rotatably coupled to the cartridge to prevent detachment of a 12 cm magneto-optical disc housed in the storage space of the cartridge; And Seating means provided for said cartridge for seating said magneto-optical disks of different sizes; It is possible to open and close bidirectionally on the front side of the cartridge to protect the magneto-optical disks seated on the seating means and to expose the data area to the optical pickup device. Disc storage cartridge. 2. The magneto-optical disk storage device according to claim 1, wherein the cartridge comprises an upper plate having a receiving space and a lower plate mutually coupled to the upper plate to selectively accommodate the magneto-optical disks. Cartridge. According to claim 1, The seating means is different size, characterized in that provided with a first and a second seating groove formed in the lower plate and the upper plate, respectively, to seat the 12cm and 8cm magneto-optical disks Magnetic disk storage cartridge. 4. The cartridge according to claim 3, wherein a guide surface extends in the second seating groove to an entrance of the cartridge so as to adjust a storage position of the 8 cm magneto-optical disk. [5] The magneto-optical disk storage device of claim 4, wherein a stepped portion is formed at a boundary between the second seating groove and the guide surface to prevent the 8cm magneto-optical disk from being separated from the second seating groove. cartridge.