KR20030069294A - A disk cartridge - Google Patents

Abstract

PURPOSE: A disk cartridge is provided to prevent a recording surface of a disk by restraining inflow of dusts by shielding a hole of a cover and simplify a disk drive device by installing a clamping member at a cartridge. CONSTITUTION: A case(201) contains a disk(D). A shutter(210) is movably installed under the disk for opening and shutting an aperture hole(202) formed at the case. A cover(203) covers the top side of the case. A clamping member(240) is installed at the cover to seal the aperture hole. The clamping member includes a clamping holder(241) supported by an aperture hole edge part of the cover, a magnet body(242) installed at the clamping holder for acting magnetic attraction with a turntable, and a lid(243) covering an open hole(203a) of the cover.

Description

Disk cartridge {A disk cartridge}

The present invention relates to a disc cartridge which accommodates a disc which is an information recording and reproducing medium and protects the recording surface from contamination sources such as dust and fingerprints.

In general, a disc cartridge is mounted in a disc drive device to accommodate a disc, which is an information recording and reproducing medium. As shown in FIG. 1, a conventional disc cartridge 100 includes a case 101 for accommodating a disc D. And a shutter rotatably installed in the case 101 to selectively open and close the opening hole 102 formed in the case 101 so that a pickup (not shown) of the disc drive device can access the disc D. 110 and a cover 103 fixed to the case 101. Reference numeral 103b denotes an opening hole formed in the cover 103 for exchanging and clamping the disk D, and reference numeral 103a denotes an opening hole in the cover 103 so that the disc D does not escape through the opening hole 103b. The release prevention lever is slidably installed. Therefore, when the disc D is mounted, the release preventing lever 103a is retracted so as not to interfere with the disc D, and after the mounting is completed, the release preventing lever 103a is advanced as shown in the drawing to open to the tip end thereof. The separation of the disk D through the hole 103b is prevented.

When the disk cartridge 100 equipped with such a disk D enters the disk drive apparatus, as shown in FIG. 2A, the opening lever 120 installed in the disk drive apparatus presses the locking piece 111a first to release the shutter. The locking between the protrusion 111c of the 110 and the groove 101a of the case 101 is released, and then the interference piece 111b is rotated about the left and right rotation shaft 110a as shown in FIG. 2B. The shutter 110 is composed of first and second shutter portions 111 and 112 rotatably installed on the left and right rotation shafts 110a and engaged with the interlocking teeth 113, and the interference piece 111b and When the first shutter unit 111 connected integrally rotates in the clockwise direction, the second shutter unit 112 rotates in the counterclockwise direction, and thus the gap between the first and second shutter units 111 and 112 opens. The opening hole 102 is opened while being built. Therefore, a turntable (not shown) and a clamper (not shown) of the disk drive apparatus enter each through the opened opening hole 102 and the opening hole 103a to clamp the disk D, and pick up (not shown). C) accesses the recording surface of the disc D and performs recording and / or reproduction of information. Although not shown in the drawing, between the first shutter part 111 and the bottom surface of the case 101, the first shutter part 111 is rotated counterclockwise, that is, a direction in which the opening hole 102 is closed. A torsion spring for elastic biasing is installed on the rotation shaft 110a. When the force applied by the opening lever 120 is removed, the shutter 110 is returned to its original closed state.

However, in such a configuration, dust may flow through the opening hole 103b of the cover 103. Of course, since the upper surface of the disk D facing toward the opening hole 103b is not a recording surface, contamination by dust does not occur directly, but when dust enters and sits on the shutter 110, the above opening and closing operation is performed. The dust on the shutter 110 secondary to the recording surface of the disc. And even if it does not necessarily go through the shutter 110, there is a possibility that the disc recording surface is contaminated once dust continues to enter the cartridge.

In addition, since the shutter 110 is provided in the case 101 and the disk D is placed on the shutter 110, the disc recording surface (the lower surface of the disk in the drawing) and the shutter ( Surface contact is generated between the disks 110, which may cause scratches such as scratches on the disk recording surface.

In the above configuration, when the shutter 110 is pressed firmly through the opening hole 102 while the shutter 110 is closed, there is a problem that deformation of the shutter 110 is likely to occur. That is, since the shutter 110 is supported only in a state in which one side is rotatably coupled to the rotation shaft 110a, for example, the user may move the other side of the shutter 110 through the opening hole 102 to the disc D. The shutter 110 is easily deformed when pressed toward the side. In this case, the opening and closing operation may not be performed properly, and even when the opening and closing operation is performed, a gap is generated between the first and second shutters 111 and 112, and thus, the shutter function may not be properly performed.

Therefore, there is a demand for a structure capable of protecting the recording surface of the disc while suppressing the possibility of deformation of the shutter 110 and suppressing the inflow of dust.

The present invention was created in view of the above necessity, and it is possible to suppress the inflow of dust into the case, to protect the disc recording surface even during the opening and closing operation of the shutter, and to suppress the possibility of deformation of the shutter due to external force. An object of the present invention is to provide an improved disk cartridge for more stable storage.

1 is a perspective view showing a conventional disc cartridge,

2A and 2B are plan views showing shutter opening and closing states of the disc cartridge shown in FIG. 1;

3 is an exploded perspective view of a disc cartridge according to an embodiment of the present invention;

4 is a view showing a combined state of FIG.

FIG. 5 is a plan view showing a shutter closed state of the disc cartridge shown in FIG. 3;

6 is a plan view illustrating a shutter open state of the disc cartridge shown in FIG. 3;

7 is a cross-sectional view taken along the line AA ′ of FIG. 5;

8 is a cross-sectional view taken along the line BB ′ of FIG. 5;

9 is a cross-sectional view taken along the line CC ′ of FIG. 6;

FIG. 10 is a view showing a state in which a disk in the disk cartridge shown in FIG. 3 is clamped;

FIG. 11 is a view showing a state in which the clamping holder in the disc cartridge shown in FIG. 3 is clamped;

12 is an exploded perspective view of a disc cartridge according to another embodiment of the present invention;

FIG. 13 is a view showing a state in which a disk in the disk cartridge shown in FIG. 12 is clamped;

FIG. 14 is a view showing a state in which the clamping holder in the disc cartridge shown in FIG. 12 is clamped. FIG.

<Description of Symbols for Major Parts of Drawings>

201 ... case 202 ... opening hole

203,203 '... cover 240,240' ... clamping member

205 Projection 210 ... Shutter

211,212 ... 1st, 2nd shutter section 220,230 ... protrusion

221,231 ... Slope 206 ... Guide hole

207.Support member D ... disc

Disc disk of the present invention for achieving the above object, the disc is accommodated in the case, the cover is installed to be opened and closed in the case, the cover is formed with an open hole that is open to the outside, and installed to be movable below the disc in the case And a shutter for opening and closing the opening hole formed in the case, and a clamping member installed on the cover to seal the opening hole and clamping the disk.

In addition, a disc cartridge according to another aspect of the present invention, the case in which the disc is housed, the cover is provided to be opened and closed on the upper surface of the case to seal the upper surface of the case, and the movable disk is installed below the disk in the case And a shutter for opening and closing the opening hole formed in the case, and a clamping member installed on the inner side of the cover to clamp the disc.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 and 4 show the disc cartridge in a detached state and a combined state according to an embodiment of the present invention.

Referring to the drawings, the disc cartridge includes a case 201 for accommodating the disc D, a shutter 210 for opening and closing the opening hole 202 formed in the case 201 under the disc D, and a case. A cover 203 covering the upper surface and a clamping member 240 provided in the cover 203 to seal the opening hole 203a are provided.

Here, the clamping member 240 has a function of clamping the disk D like a clamper in a disk drive device, and at the same time has a function of blocking the opening hole 203a. That is, in this structure, the member for disc clamping function is attached to the cartridge cover 203 instead of the disc drive apparatus, and the sealing function of the opening hole 203a is provided. Detailed configuration will be described later.

Next, the shutter 210 is composed of first and second shutter parts 211 and 212 installed in the case 201 to be symmetrically rotated. Therefore, when the first and second shutter parts 211 and 212 rotate in the direction of opening to each other, the opening hole 202 is opened (see FIG. 6), and when the first and second shutter parts 211 and 212 rotate in the closing direction, the opening hole 202 is blocked. (See Figure 5). Reference numeral 213 denotes a connecting portion for linking the first and second shutter portions 211 and 212 so that the second shutter portion 212 is symmetrical when the first shutter portion 211 rotates. Will rotate together in the direction. A torsion spring 204 is provided between the first and second shutter portions 211 and 212 and the bottom surface of the case 201 to elastically bias them in the direction in which the opening hole 202 is closed. When the force exerted by 120 is removed, the shutter 210 is returned to its original closed state.

The first and second shutter parts 211 and 212 are provided with protrusions 230 and 220 contacting the outer edge portion D3 of the disc D. That is, the disk D is provided with a clamping area D1 on the inner circumference side, an information area D2 on which information is recorded, and an edge part D3 outside the information area D2. The protrusions 220 and 230 support the one edge portion D3 to avoid contact between the information area D2 and the shutter 210. The protrusions 220 and 230 include inclined surfaces 221 and 231 which are inclined toward the side where the disk D is seated. Accordingly, when the first and second shutter parts 211 and 212 are closed as shown in FIG. 5, the edge part D3 of the disc D is supported on the upper end of the protruding parts 220 and 230. As described above, when the first and second shutter parts 211 and 212 are opened, the disk D descends on the inclined surfaces 221 and 231. The lowered disk D is supported by the inner circumferential side clamping area D1 by the projection 205 formed in the case 201. As shown in FIG. 5, the clamping area D1 is in close contact with the clamping member 240 of the disk D raised as the shutter 210 is closed.

In addition, a support that is slidably inserted into the guide hole 206 formed in the case 201 on the lower surface of the first and second shutter parts 211 and 212, that is, the surface opposite to the surface on which the disk D is seated. The member 207 is provided. The guide hole 206 is formed along a trajectory in which the support member 207 moves when the first and second shutter parts 211 and 212 rotate. Therefore, when opening and closing the first and second shutter parts 211 and 212, the support member 207 slides along the guide hole 206. The end 207a of the support member 207 inserted into the guide hole 206 is caught by the contact portion 206a of the guide hole 206 as shown in FIG. 7. Therefore, even if an external force is applied to the shutter 210 in the direction of arrow F, the shutter 210 is not deformed into the case 201 because the end portion 207a is caught by the contact portion 206a of the guide hole 206. Here, the end 207a may be configured to protrude out of the case 201, but as shown in the drawing, an accommodating part 206b communicating with the guide hole 206 is formed in the case 201 so that the end 207a has a case. It is desirable to be accommodated therein without protruding outward from the (201) plane.

In addition, as shown in FIG. 8, coupling protrusions 211a and coupling grooves 212a are formed at close positions of the first and second shutter parts 211 and 212, respectively. This is because when the first shutter portion 211 and the second shutter portion 212 are in close contact with each other while closing the opening hole 202, the first and second shutter portions ( The deformation of the shutter is less likely to occur than when the 211 and 212 are separated from each other. Of course, contrary to the drawing, the coupling protrusion may be formed in the second shutter unit 212 and the coupling groove may be formed in the first shutter unit 211.

Meanwhile, the clamping member 240 completely blocks the opening hole 203a of the cover 203 as described above to prevent the inflow of foreign substances such as dust and clamps the disk D when necessary. As shown in FIG. 4, the clamping member 240 includes a clamping holder 241 supported at an edge of the opening hole 203a, a yoke 242 installed at the clamping holder 241, and the clamping holder. 241 includes a cover 243 that completely covers the opening 203a from above. Therefore, since the opening hole 203a is completely sealed by the clamping member 240, dust does not flow through the opening hole 203a. Instead, when the disk D is replaced, the cover 203 is opened as shown in FIG. 4, and then the disk D stored therein is removed and a new disk is mounted. The clamping holder 240 is in close contact with the clamping region D1 of the disk D when the disk D in the case 201 is raised. When the disk D is raised, as shown in FIG. 11, when the first and second shutter parts 211 and 212 are closed, the disk D rises on the inclined surfaces 221 and 231, and FIG. 10. This is the case where the disk D is seated on the turntable T and ascends as the turntable T enters through the opening hole 202 for the recording and reproducing operation in the disk drive apparatus. At this time, magnetic attraction is generated between the yoke 242 and the magnet T1 installed on the turntable T, which acts as a force for clamping the disk D.

Reference numeral 211b is provided in the first shutter unit 211, and at one end, the closing groove 212b 'formed in the locking protrusion 212b of the second shutter unit 212 when the opening hole 202 is closed. It shows a locking piece provided with a locking hook 211c coupled to.

As shown in FIG. 5, the disc cartridge on which the disc D is mounted enters the disc drive device with both the shutter 210 and the cover 203 closed. At this time, all the passages through which dust and the like may enter the cartridge are blocked. When such a disc cartridge enters, as shown in FIG. 6, the opening lever 120 installed in the disc drive device presses the locking piece 211b to release the locking hook 211c and the locking groove 212b '. While pushing the locking protrusion 212b having the locking groove 212b ', the second shutter 212 is rotated in the clockwise direction of the drawing. Then, the first shutter portion 211 is interlocked by the connecting portion 213 to rotate counterclockwise, and thus the opening hole 202 is opened between the first and second shutter portions 211 and 212. do. At this time, only the protrusions 220 and 230 of the first and second shutter parts 211 and 212 are in contact with the disc D, and the contact part is also the disc D edge portion D3, which is a non-information area. In this case, there is almost no risk of damaging the information area of the recording surface even during the opening / closing operation of the shutter 210. Then, as the shutter 210 is opened, the disc D descends on the inclined surfaces 221 and 231 of the protrusions 220 and 230, and thus the protrusion 205 is shown in FIGS. 6 and 9. It is temporarily supported on the upper surface and the inclined surface (221, 231). In this state, a disk driving turntable (not shown) of the disk drive apparatus enters through the opening hole 202 opened to guide the disk D supported on the protrusions 205 and the inclined surfaces 221 and 231. Clamping is performed between the clamping member 240 as shown in FIG. 10. Thereafter, the recording and reproducing operation of the disc D is performed along with the rotation driving of the turntable.

On the contrary, when the recording and reproducing operation is finished, the turntable is lowered and the clamping with the clamping member 240 is released, and the disk D is once placed on the non-information area D1 on the protrusions 205 and the inclined surfaces 221 and 231. (D3) is placed in a supported state. In this state, when the disc cartridge is ejected from the disc drive device, the first and second shutter parts 211 and 212 are rotated to their original positions so that the opening hole 202 is closed. At this time, the outer peripheral edge of the disc D is The portion D3 rises on the inclined surfaces 221 and 231 of the protrusions 220 and 230 to return to the state illustrated in FIG. 5. At this time as well, since the closing operation is performed without the shutter 210 contacting the information area D2, the information area D2 is safely preserved. Further, in this state, the disk D rises on the inclined surfaces 221 and 231 to push up the clamping holder 241 supported by the edge of the opening hole 203a as shown in FIG. ). That is, at this time, the clamping holder 241 is clamped between the disk D and the lid 243. In this case, the clamping holder 241 is prevented from flowing, and thus the clamping holder 241 may prevent the clamping holder 241 from bumping against the peripheral elements such as the cover 203 and the cover 243 when the disc cartridge moves.

In the state in which the shutter 210 is closed as described above, the coupling protrusion 211a and the coupling groove 212a of the first and second shutter parts 211 and 212 are coupled to each other, and the support member ( Since the end portion 207a of the 207 is caught by the contact portion 206a of the guide hole 206, the shutter 210 is not pushed even if the shutter 210 is pressed into the case 201 through the opening hole 202. do. Therefore, deformation of the shutter 210 due to external force can be prevented and the closed state of the opening hole 202 can be maintained firmly.

Next, Figs. 12-14 show a disc cartridge according to another embodiment of the present invention. In the drawings, the same reference numerals as the above-described embodiments indicate the same members performing the same functions.

As shown, the disc cartridge of this embodiment is almost the same as the configuration of the above embodiment, but the front surface is completely blocked without forming a hole such as an opening in the cover 203 ', and the clamping member 240' ) Is provided on the inner side of the cover 203 '. In other words, in the present embodiment, the cover 203 'is not made at all in the cover 203', so that the cover 203 'is completely closed. As the cover 203 'is blocked in this way, the clamping member 240' is installed on the inner surface of the cover 203 '. For this purpose, the clamping member 240' is connected to the yoke 242 and the clamping holder 241; The ring holder 244 is attached to the inner surface of the cover 203 'so that the clamping holder 241 contacts the edge of the ring member 244 to be supported.

When the disc cartridge having the above configuration is loaded into the disc drive apparatus and the recording and reproducing operation is proceeding, the disc D is clamped between the turntable T and the clamping holder 241 as shown in FIG. When loaded, the clamping holder 241 is clamped between the disk D and the inner surface of the cover 203 'as shown in FIG.

Therefore, the disc cartridge of the present embodiment can fundamentally prevent the inflow of dust through the cover 203 'side. Other functions including other shutter opening and closing are the same as in the above-described embodiment.

The disc cartridge of the present invention as described above has the following effects.

First, by blocking the hole communicating with the outside of the cover side, dust can be suppressed to reduce the possibility of contamination of the disc recording surface.

Second, since the clamping member is installed in the cartridge, it is advantageous to simplify and slim the disk drive apparatus.

Third, by engaging the end of the support member in the contact portion of the guide hole it is possible to prevent the deformation of the shutter by the external force and to maintain the closed state firmly.

Fourth, the shutter in the case is configured to contact only the non-information area of the disc, so that the disc information area can be safely preserved even during the operation for opening and closing the opening hole.

Fifth, it is possible to conveniently replace the disk by installing the cover in the case to open and close.

It is to be understood that the invention is not limited to that described above and illustrated in the drawings and that many more modifications and variations are possible within the scope of the following claims.

Claims (9)

The case which a disk is stored in, A cover installed to be openable and closeable in the case and having an open hole open to the outside; A shutter movably installed below the disc in the case to open and close the opening hole formed in the case; And a clamping member installed on the cover to seal the opening, and clamping the disk. The method of claim 1, The clamping member, A clamping holder supported by the opening edge of the cover; A magnetic body installed in the clamping holder for applying magnetic attraction with the turntable on which the disk is to be seated in the disk drive device; And a cover covering and sealing the opening hole from above the clamping holder. The method of claim 2, The shutter is provided with a protrusion having an inclined surface inclined at a predetermined angle and protruding to support the outer peripheral side non-information region of the disc, The disc descends on the inclined surface when the shutter is opened, And the disc is lifted on the inclined surface to be in close contact with the cover when the shutter is closed. The case which a disk is stored in, A cover installed on the upper surface of the case so as to be opened and closed to seal the upper surface of the case; A shutter movably installed below the disk in the case to open and close the opening hole formed in the case; And a clamping member installed on an inner side of the cover to clamp the disk. The method of claim 4, wherein The clamping member, A ring member installed on the inner side of the cover; A clamping holder supported over an edge of the ring member; And a magnetic body installed in the clamping holder for exerting a magnetic attraction with the turntable on which the disk is to be seated in the disk drive device. The method of claim 5, The shutter is provided with a protrusion having an inclined surface inclined at a predetermined angle and protruding to support the outer peripheral side non-information region of the disc, The disc descends on the inclined surface when the shutter is opened, And the disc is lifted on the inclined surface to be in close contact with the inner surface of the cover when the shutter is closed. The method according to any one of claims 1 to 6, The case is formed with a guide hole along the movement trajectory of the shutter, And a support member which is slidably inserted into the guide hole and whose end is caught by the contact portion of the guide hole in the shutter. The method according to any one of claims 1 to 6, The shutters include first and second shutter parts that open and close the opening hole while being in close contact with and spaced apart from each other. A coupling groove is formed on one side of the first and second shutter parts, and a coupling protrusion coupled to the coupling groove is formed on the other side, so that the coupling protrusions are fitted into the coupling groove when they are in close contact with each other. Disc cartridge. The method according to any one of claims 1 to 6, The case has a disc cartridge, characterized in that the projection provided to support the inner peripheral side of the non-information area of the disk descending on the inclined surface.