KR100333804B1 - Disc accommodating cartridge having multiple shutters - Google Patents

Abstract

PURPOSE: A disc accommodating cartridge having multiple shutters is provided to accommodate both of a single-sided and two-sided discs in one cartridge case and to reduce the size of the cartridge case. CONSTITUTION: A disc accommodating cartridge includes a cartridge case and multiple shutters(20,22). The cartridge case having openings(10a) formed in the top and bottom faces of the case, through which a turn table is introduced. The shutters are set at the cartridge case to partially open/close the openings. The shutters are overlapped with each other, and have the same width. The cartridge case has recesses through which the shutters are moved in one direction. One end of the shutters is covered by a cover(24) to prevent the shutter from being separated from the cartridge case.

Description

Disc storage cartridge with multiple shutters

The present invention relates to a disc housing cartridge having multiple shutters, and more particularly, to allow the shutters mounted on the cartridge case to overlap and move, partially opening and closing the accommodation hole, and adjusting the width of the escape groove for escaping the shutters. A disc housing cartridge having multiple shutters.

In general, a small cartridge containing a disc smaller than 12 cm (DVD-ROM) is used to prevent dust, fingerprints, or scratches on the surface of the disc, to record desired information without errors, and to protect the recorded information. The cartridge is usually manufactured by molding a synthetic resin or the like to have a constant size (95x90 mm).

The small cartridge is formed with a receiving hole having a diameter of 25 mm. This receiving hole is for seating the disc directly on the turntable when the small cartridge is inserted into the portable recording and reproducing apparatus.

The diameter of the turntable is usually smaller than the receiving hole, and the opening hole communicates with the opening hole for securing the transfer path of the optical pickup device to the disk.

A shutter is mounted on the front side of the small cartridge so as to open and close the accommodation hole and the opening hole. This shutter has a larger width than the accommodation hole.

In addition, guide grooves are formed on both side surfaces of the small cartridge, and an escape surface for escaping the shutter is provided on the outer surface.

Here, the guide groove is for opening the shutter while being inserted into the shutter opening and closing member when the small cartridge is inserted into the recording and reproducing apparatus, the width of the escape groove is to open the shutter to a range that does not interfere with the accommodation hole or opening hole It is greater than or equal to the width of the shutter to escape.

In the conventional small cartridge configured as described above, when the small cartridge is inserted into the recording / reproducing apparatus in order to record and / or reproduce information on a disc of less than 12 cm, for example, a disc having an diameter of 8 cm, the guide groove of the small cartridge opens and closes the shutter. As the shutter is inserted into the member, the shutter escapes to the escape groove to open the accommodation hole.

Then, as the turntable having a smaller diameter than the accommodation hole enters the accommodation hole, the disk is directly seated on the upper surface thereof.

Thereafter, the disk is rotated at a speed that can be recorded or reproduced by the spindle motor, and the drive circuit portion and the drive circuit portion constituting a circuit thereof, the optical pickup apparatus for radiating a semiconductor laser beam onto the disk, and the necessary information are recorded and reproduced on the disk. The signal processing circuit section records and / or reproduces information on the disc.

However, in the small cartridge as described above, since the width of the escape grooves formed in the small cartridge must be equal to or larger than the width of the shutter for opening and closing the receiving hole, the shutter of the cartridge has to be moved in one direction. Not only this possible disc is accommodated, but there is a disadvantage that the size of the small cartridge cannot be reduced.

In addition, when the 8cm small cartridge used for the recording / reproducing apparatus is used for the 12cm dedicated recording / reproducing apparatus, the size of the small cartridge and the 12cm cartridge (137.5x124.5 mm) are different from each other. There was a problem that the turntable having a diameter of 28 to 30 mm does not enter the accommodating hole so that the disc cannot be seated, and thus, recording and / or reproducing of information is impossible.

According to the disk storage cartridge (Application No. 98-3865), which has been previously filed to solve the above problems, the cartridge is provided with a receiving hole extended to enter the turntable of the 12 cm recording and reproducing apparatus, and the cartridge front side. There has been provided a disc housing cartridge comprising a shutter mounted to seal a portion of the accommodation hole, and a rotating plate rotatably coupled to the shutter to seal the remaining portion of the accommodation hole.

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.

The present invention is to solve the above problems, an object of the present invention is to divide the shutters mounted on the cartridge case in the same width to partially open and close the accommodating hole, and to move overlapping each other, the escape groove that the shutter is escaped It is possible to provide a disc storage cartridge having multiple shutters that can reduce the width of the disc, and can use a single-sided and double-sided disc in a single cartridge case, and can miniaturize the cartridge case.

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

FIG. 2 is a perspective view of the disk storage cartridge shown in FIG. 1 combined; FIG.

3 is a side cross-sectional view showing a disc housing cartridge having multiple shutters according to the present invention;

4 is a view showing a disc housing cartridge according to the present invention, a plan view of the first shutter is moved,

5 is a view showing a disc housing cartridge according to the present invention, which is a plan view of the first and second shutters are moved.

Explanation of symbols on the main parts of the drawings

10: cartridge case 10a: receiving hole

10b: opening hole 12,14: first and second storage members

12a, 14a: Escape groove 20,22: First and second shutter

20a, 20b: first and second jamming pieces 20c: convex portion

22a: engaging jaw 22b: recessed portion

24: cover 26: flexible wire

28: shutter opening projection 30: elastic member

40: shutter opening and closing member

A feature of the present invention for achieving the above object is a disk storage cartridge having multiple shutters for storing a disc seated on a turntable of a recording and reproducing apparatus, wherein the cartridge is arranged on the upper and lower surfaces thereof so that the turntable enters. A cartridge case having a receiving hole extending in diameter; And a shutter group mounted on the cartridge case and overlapping each other to partially open and close the accommodation hole.

The width of the escape groove according to the present invention is achieved by being adjustable by the number of divisions of the shutter group.

The shutter group according to the present invention is achieved by being divided into at least two or more so as to be able to overlap double or multiple.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a disc storage cartridge having multiple shutters according to the present invention will be described in detail below with reference to the accompanying drawings.

1 to 3 illustrate a disc housing cartridge according to the present invention, wherein the cartridge of the present invention has a cartridge having a receiving hole 10a extended in diameter to accommodate a disc D having a diameter of less than 12 cm. The case 10 is composed of a shutter group divided into at least two or more that is mounted to be opened and closed in one direction while being overlapped in a double or multiple in the front thereof.

The cartridge case 10 includes a first storage member 12 and a second storage member 14 coupled thereto. In the first and second storage members 12 and 14, discs capable of single-sided or double-sided reproduction are accommodated.

A slide groove 10c is formed on the front wall of the cartridge case 10 so as to slide when the shutter group is opened and closed, and on one wall the guide hole 10d is inserted into the shutter opening and closing member 40 of the 8 cm dedicated recording and reproducing apparatus. The insertion groove 10e having is formed.

An opening hole 10b for exposing a portion of the disk sealed by the shutter group to the optical pickup device and securing a transfer path is communicated with the receiving hole 10a, and the first and second storage members 12 ( The upper and lower surfaces of the 14 are provided with escape grooves 12a and 14a through which the shutter group is evacuated.

The shutter group includes first and second shutters 20 and 22 having the same width W and W 'so that the shutter group can overlap each other, and both sides of the first shutter 20 have different lengths. The first and second locking pieces 20a and 20b extend respectively. The first and second locking pieces 20a and 20b are for pushing or pulling the second shutter 22 when opening and closing with respect to the accommodation hole 10a.

The side of the second shutter 22 is bent so that the locking jaw 22a caught by the first locking piece 20a is upward, and the cartridge case 10 surrounds the rear end portions of the first and second shutters and the cartridge case 10. The cover 24 is fixed to prevent the separation of the first and second shutters 20 and 22.

Here, the width w of the escape grooves 12a and 14a is equal to the width W (W ') of the first shutter 20 or the second shutter 22, and the number of shutter groups is divided. The width w can be adjusted by this.

At the rear end of the first shutter 20, a convex portion 20c for preventing the first shutter 20 from being shaken or inclined in one direction with respect to the second shutter is partially overlapped when the accommodation hole 10a is partially opened and closed. It protrudes in an inward direction, and the 2nd shutter 22 is provided with the recessed part 22b for accommodating the convex part 20c.

One end of the flexible wire 26 is connected to the engaging piece 20a of the first shutter 20, and the other end of the guide hole 10d comes into contact with the insertion groove 10e when it is inserted into the shutter opening / closing member 40. The shutter opening projection 28 moving along the) is fixed, and the coil spring or torsion is provided on the opposite side of the first locking piece 20a to return the first and second shutters 12 and 14 to their initial positions. An elastic member 30 such as a coil spring is connected.

The operation of the disc storage cartridge having multiple shutters according to the present invention configured as described above will be described in detail with reference to FIGS. 4 and 5.

A single-sided or double-sided disc can be reproduced in the cartridge case 10. For example, when a disc D having an diameter of 8 cm is received and inserted into the portable recording and reproducing apparatus, the disc case 10 is formed on one side wall of the cartridge case 10. As the insertion groove 10e is inserted, the shutter opening projection 28 is moved backward along the guide hole 10d by the input of the cartridge case 10.

Then, the flexible wire 26 is pulled by the movement of the shutter opening projection 28, and the first shutter 20 having one end of the flexible wire 26 connected to the inner surface of the first engaging piece 20a is shown in FIG. As described above, half of the receiving hole 10a is opened while overlapping with respect to the second shutter 22.

At this time, the locking jaw 22a bent on the second shutter 22 is in contact with the inner surface of the first locking piece 20a, and the first shutter 20 has a convex portion protruding inwardly at its rear end ( 20c) is moved along the recess 22b of the second shutter 22 to prevent shaking or inclination in one direction when the receiving hole 10a is opened or closed.

Then, when the cartridge case is completely inserted into the recording and reproducing apparatus as shown in FIG. 5, the second shutter 22 is evacuated together by the first shutter 20 to the escape grooves 12a and 14a to enter the turntable. It is to open both the receiving hole (10a) and the opening hole (10b) for securing the transfer path of the optical pickup device.

At this time, the elastic member 30 connected to the outer surface of the first catching piece 20a maintains the tensioned state.

Further, when the cartridge case 10 is taken out from the recording and reproducing apparatus, the first and second shutters 20 and 22 are moved in the reverse order to the above operation to seal the receiving hole 10a and the opening hole 10b. Let's do it. That is, the first shutter 20 overlapping the second shutter 22 moves along the slide groove 10c to seal half of the accommodation hole 10a and the opening hole 10b. At this time, the second catching piece 20b and the catching jaw 22a are in contact with each other.

After that, when the first shutter 20 is continuously moved by the compressive force of the elastic member 30, the second catching piece 20b of the first shutter 20 pulls the second shutter 22 to accommodate the accommodation hole. Both the 10 and the opening 10 are sealed to protect the disc housed in the cartridge case 10.

As described above, according to the disk storage cartridge having multiple shutters according to the present invention, the shutter mounted on the cartridge case is divided into equal widths so that the shutters move while overlapping each other when opening and closing the accommodation hole, thereby reducing the width of the escape groove where the shutter is escaped. Not only can it be reduced, but also a disc capable of single-sided and double-sided reproduction can be used, and the cartridge case can be miniaturized.

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 disc housing cartridge having multiple shutters for storing a disc seated on a turntable of a recording and reproducing apparatus, A cartridge case having a receiving hole extending in diameter at upper and lower surfaces thereof to allow the turntable to enter; And And a shutter group mounted to the cartridge case and overlapping each other to partially open and close the accommodation hole. And the cartridge case is provided with an escape groove for allowing the shutter group to escape in one direction. The disk storage cartridge according to claim 1, wherein the width of the escape groove is adjusted by the number of divisions of the shutter group. 2. The disc storage cartridge according to claim 1, wherein the shutter group is divided into at least two or more so as to be overlapped in a double or multiple. 4. A disc housing cartridge having multiple shutters according to claim 3, wherein the shutter group comprises first and second shutters having the same width. 4. The disc housing cartridge according to claim 3, wherein the shutter group is covered with a cover to prevent the first and second shutters from being separated from the cartridge case.