KR100680812B1 - Disk drive - Google Patents

Abstract

A disk drive is provided to allow approximately a half of a disk to be protruded to the outside from a body, and to protect the protruded half by using a cartridge so that external power does not work during rotation of the disk, thus the disk drive is formed in approximately half of the disk while a user carries the drive. A body(20) is equipped with a component for recording/reproducing a signal as well as for rotating of a disk inside, and wherein at least approximately a half of the disk is protruded to the outside. A cartridge(40) consists of a lower plate(42) and an upper plate(44) connected together so as to be mutually overlapped or unfolded, and wherein a disk setting space is formed between the lower plate(42) and the upper plate(44). The cartridge(40) shields the protruded part of the disk in connection with the body(20).

Description

Disk drive

Figure 1 is a partially cutaway perspective view showing the configuration of an external disk drive of the top-loading method according to the prior art.

Figure 2 is a side view showing the internal structure of a disk drive according to the prior art.

Figure 3 is a perspective view showing the configuration of a preferred embodiment of a disk drive according to the present invention.

Figure 4 is a side view showing the configuration of the main body constituting the embodiment of the present invention.

Figure 5 is a perspective view showing the configuration of a cartridge constituting the disk drive of the embodiment of the present invention.

Figure 6 is a plan view showing a state in which the main body and the cartridge is separated in the embodiment of the present invention.

Figure 7a is a plan view showing a state in which the main body and the cartridge is coupled in the embodiment of the present invention.

Figure 7b is a side view showing a state coupled to the cartridge in the embodiment of the present invention.

8 is a perspective view showing the configuration of another embodiment of the present invention.

Figure 9 is a side view showing the configuration of the main body constituting another embodiment of the present invention.

10 is a use state showing a state using another embodiment of the present invention.

Figure 11 is a use state showing that the disk is fixed to the turntable in a state where the cartridge is mounted in the main body in another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

20: main body 21: housing

22: main leg 23: parts mounting

24: disc rotation space 26: turntable

27: mounting protrusion 28: clamp

30: shield 32: mounting groove

40: cartridge 42: bottom plate

42 ': seating space 44: top plate

44 ': seating space 46: cartridge leg

48: through hole 49: mounting finger

The present invention relates to a disc drive, and more particularly, to a disc drive for recording a digital signal or reproducing the recorded digital signal on the signal recording surface of the disc.

In a disc drive that records or reproduces a signal on an optical disc, a structure of loading and unloading a disc through the top of the set is called a toploading method. In this case, a cover is installed on the top of the disc drive set, and the cover is opened and closed to load and unload the disc. The front loading method is a method of loading and unloading a disk through the front of the disk drive.

Such a disk drive has an external type that is made separately from the internal type that is integrally mounted inside the computer and is connected and used through a cable such as a computer. Dual external and toploaded disk drives are shown in FIGS. 1 and 2.

As shown in these figures, there is provided a main body 1 in which various components constituting a disk drive are provided, and a cover 3 is provided at an upper end of the main body 1. The cover 3 is opened and closed about a hinge 3 'of one side, and a cover hook 3h is provided on an inner surface opposite to the hinge 3'. The cover hanger 3h allows the cover 3 to be fastened to the main body 1. Of course, the cover hanger (3h) is to be provided on the side of the main body 1 to be provided with a portion is omitted for convenience. The center of the cover 3 is provided with a window 5 for viewing the inside. An open button 7 is provided on the free end side of the cover 3. The opening button 7 is for releasing the locked state of the cover hanger (3h). Reference numeral 9 is an indicator light.

On the inner upper surface of the main body 1 which is selectively opened and closed by the cover 3 is provided a disk seating portion 10 in which the disk is located. The disc seat 10 is formed to be recessed relatively to the inner upper surface of the main body 1, and becomes a circular groove slightly larger than the diameter of the disc.

A pickup base 12 is provided to form a part of the disc seat 10, and the pickup base 12 has a pickup window having a predetermined width in a radial direction from the center of the disc seat 10 to one edge thereof. (13) is formed. The pickup base 12, which is the center of the disc seat 10, is provided with a turntable 14 driven by a spindle motor (not shown). The disk is seated and fixed to the turntable 14.

On the other hand, the pickup base 12 is provided with an optical pickup 15 for moving the light along the pickup window 13 to irradiate the signal recording surface of the disc and read the reflected light. The optical pickup 15 is driven by a separate motor provided on the bottom surface of the pickup base 12.

However, the prior art as described above has the following problems.

The size of the external disk drive as described above should be at least larger than the size of the disk. In other words, the size of a disk drive is limited by the size of the disk. Generally, discs are 120 mm in diameter and 80 mm in diameter. In order to use a 120 mm diameter disk, the length of one side of the disc drive, as shown in FIG. 1, must be at least 125 mm. 5mm is necessary for the configuration of the disk drive appearance and shielding the disk from the outside.

Therefore, in the conventional external disk drive, the length of one side of the disk drive should be at least larger than the diameter of the disk.

An object of the present invention is to solve the problems of the prior art as described above, to minimize the size of an external disk drive.

According to a feature of the present invention for achieving the above object, the present invention is a main body provided with a component for rotating the disk and recording / playback of the signal therein and at least about half of the disk protrudes to the outside, Comprising a lower plate and the upper plate connected to overlap or unfold each other, the disk seating space is formed between the lower plate and the upper plate, comprising a cartridge coupled to the main body to shield a portion of the disk protruding out of the main body do.

The main body is a hexahedral plate, the housing is configured to the exterior, and the inside of the housing is provided with a component installation unit for installing various components and a disk rotation space is rotated, the disk rotation space in the center of the inlet The turntable is installed at the corresponding part.

A shield for shielding the turntable is formed on an upper surface of a housing corresponding to the upper part of the turntable, and a clamp for fixing the disk to the turntable is installed to be elevated as the disk enters and exits between the shield and the turntable.

A pressing opening is formed on the upper surface of the housing corresponding to the upper part of the turntable, and a pressing opening is formed to expose a portion including the turntable, and a clamp protrusion for fixing a disk surrounding the outer peripheral surface of the mounting protrusion formed on the upper surface of the turntable to the turntable is elastic. It is installed to protrude by.

At least one of the lower plate and the upper plate is provided with mounting fingers inserted into the main body at both ends of the front plate.

The lower plate of the cartridge is provided with a through-hole for preventing interference with the turntable.

A through part corresponding to the through part is formed in the top plate of the cartridge, and the top plate is inserted into the disc rotating space.

The top of the cartridge is mounted on the front end of the housing.

According to another feature of the invention, the present invention is the housing is configured to the exterior and the component mounting portion formed therein is provided with a component for the rotation of the disk and the signal recording / playback and the disk is located inside the housing to rotate A disk rotation space is formed, and the disk rotation space is configured so that at least about half of the disk is seated, the lower plate and the upper plate overlap and unfold, and are mounted to the body to shield a portion of the disk protruding from the body. It comprises a cartridge.

A turntable is installed at a portion corresponding to the center of the inlet of the disk rotating space, and insertion grooves for inserting a portion of the cartridge are formed at portions corresponding to both ends of the inlet of the disk rotating space, and at least the lower plate of the cartridge has the turntable. A through-hole is formed to prevent interference with the at least one of the lower plate and the upper plate of the cartridge is formed with a mounting finger inserted into the insertion groove.

The housing corresponding to the upper side of the turntable is provided with a shield for shielding the turntable, and a clamp for fixing a disk to the turntable is provided between the shield and the turntable.

A through part corresponding to the through part is formed in the top plate of the cartridge, and the top plate is inserted into the disc rotating space.

A pressing opening is formed on the upper surface of the housing corresponding to the upper part of the turntable, and a pressing opening is formed to expose a portion including the turntable, and a clamp protrusion for fixing a disk surrounding the outer peripheral surface of the mounting protrusion formed on the upper surface of the turntable to the turntable is elastic. It is installed to protrude by.

The top of the cartridge is mounted on the front end of the housing.

The lower surface of the main body and the cartridge are provided with a main body leg and a cartridge leg which are supported on the bottom surface and are prevented from sliding by friction, so that the cartridge is supported at a predetermined height so that the disc does not contact the cartridge.

According to another feature of the present invention, the present invention provides a housing for constituting an appearance and a component installation unit and a disk rotation space for the rotation of the disk is installed therein is installed parts for the rotation of the disk and recording the signal; A turntable installed inside the housing corresponding to the inlet of the disc rotation space to rotate the seat by rotating the disk, a clamp protrusion projecting by an elastic force to an outer circumferential surface of the mounting protrusion provided on the upper surface of the turntable, and fixing the disk to the turntable; A cartridge coupled to the housing and shielding the disk protruding out of the housing; The cartridge includes a lower plate having a disk seating space in which a disk is seated, and a lower plate having a hole formed at the center of the front end to prevent interference with the turntable, and overlapping and unfolding with respect to the lower board, and corresponding disk seating space A top plate having a space formed therein, a cartridge leg formed at a lower edge of the lower plate to support the cartridge, and a mounting finger formed to protrude on both sides of the front end of the lower plate and inserted into and coupled to the housing.

A portion of the housing corresponding to the upper portion of the turntable is formed with a pressing opening for applying a force for mounting the disk on the turntable.

The front end of the upper plate protrudes more than the front end of the lower plate so that a part of the upper plate is seated on the upper surface of the housing.

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A cartridge leg for supporting the cartridge at a predetermined height is formed at the bottom edge of the lower plate, and a main body leg is formed at the bottom edge of the housing to cooperate with the cartridge leg to support the cartridge at a predetermined height.

According to the disk drive according to the present invention having such a configuration, the size of the disk drive can be made smaller than the size of the disk, and there is an advantage that the portable disk drive becomes more convenient.

Hereinafter, a preferred embodiment of a disk drive according to the present invention will be described in detail with reference to the accompanying drawings.

3 shows a preferred embodiment of the disc drive according to the present invention in a perspective view, FIG. 4 shows a side view of the main body constituting the embodiment of the present invention, and FIG. 5 shows a disc drive of the present invention embodiment. The configuration of the cartridge is shown in perspective view.

As shown in these figures, the housing 21 forms the appearance of the main body 20 of the disc drive. The housing 21 constitutes an appearance of the main body 20, and serves to protect parts and disks installed in the main body 20. The main body 20 is roughly rectangular in shape, and the relatively long side is formed to be slightly larger than the diameter of the disk, and the relatively short side is formed to have a value of about half the diameter of the disk. Such a main body 20 becomes a substantially hexahedral plate shape.

The lower surface of the main body 20 is provided with a main body leg 22 at least at its four corners. The main body leg 22 serves to support the main body 20 at a predetermined height and to prevent slipping with respect to the supported bottom surface. To this end, the body leg 22 is preferably formed of a material capable of generating a friction force or at least the bottom surface is provided with a material having a good friction force.

Various parts are installed in the main body 20. That is, components for rotating the disc and recording and reproducing the signal are provided. For example, a printed circuit board, a spindle motor, an optical pickup, a sled motor providing power for transferring the optical pickup, and the like are installed. In the present specification, the parts mounting portion 23 is indicated by hatching for convenience of illustration.

The disk rotation space 24 is formed inside the main body 20. The disk rotation space 24 is a portion in which the disk is rotated inside the main body 20, and is actually a space excluding the component installation part 23 in the housing 21.

The turntable 26 is installed on a surface constituting the bottom of the disk rotating space 24. The disk is seated on the turntable 26, which is rotated by a spindle motor to rotate the disk. The upper surface of the turntable 26 is provided with a disc-shaped mounting protrusion 27 '. The mounting protrusion 27 'is a portion inserted into the central through hole of the disc.

The clamp 28 is installed above the turntable 26. The clamp 28 secures the disk to the turntable 26. The clamp 28 is positioned above the turntable 26 by an operation of inserting the disk to be seated on the turntable 26, and then presses the disk against the turntable 26 while being lowered. The portion of the clamp 28 shown in the drawing is a portion that actually presses the disk and rotates with the disk. Since the structure of such a clamp is not the gist of the present invention, description of a specific structure is omitted.

A shield 30 is formed in the housing 21 corresponding to the upper portion of the turntable 26. The shield 30 serves to shield the upper part of the turntable 26 from the outside.

Mounting grooves 32 are provided at both ends of the main body 20, that is, at both ends of the housing 21 corresponding to both ends of the disk rotation space 24 opening to the outside of the main body 20. The mounting groove 32 is a configuration for mounting the cartridge 40 to be described below to the main body 20.

The cartridge 40 performs a function of shielding the disk portion protruding to the outside of the main body 20. As shown in FIG. 5, the cartridge 40 has a bottom plate 42 and a top plate 44, which are generally quadrilateral, connected at one end thereof so that they overlap or unfold with each other. The lower plate 42 and the upper plate 44 may be rotatably connected to each other by a hinge pin, or may be integrally formed as a mold and connected to each other to be relatively thin so that they can be rotated to each other.

When the lower plate 42 and the upper plate 44 overlap, a configuration that can be coupled to each other may be provided. For example, the elastic hook and the hanger on which the hook is hooked are provided at positions corresponding to each other of the lower plate 42 and the upper plate 44. Of course, when the mounting finger 49, which will be described below in the state where the lower plate 42 and the upper plate 44 overlap each other, is inserted into the mounting groove 32, they do not open to each other. In the embodiment, it is not necessary.

A seating space 42 ′ is formed in the lower plate 42. The seating space 42 ′ is formed to be recessed on a surface of the lower plate 42 that faces the upper plate 44. The seating space 42 'is formed at or slightly deeper than the thickness of the disk. The upper plate 44 also has a seating space 44 ′ formed on a surface facing the lower plate 42. These seating spaces 42 ', 44' cooperate with each other to form a space in which the disk can be positioned and rotated.

A cartridge leg 46 protrudes from a lower surface of the cartridge 40. The cartridge leg 46 is provided at both edges of the lower surface of the cartridge 40. In the embodiment shown in the drawings, the cartridge legs 46 are provided with opposite ends of the cartridge 40 is coupled to the main body 20, but is not necessarily the cartridge legs at the four corners of the lower surface of the cartridge 40 (46) can be placed. The cartridge leg 46 cooperates with the main body leg 22 to support the cartridge 40 at a predetermined height so that the disk does not contact the inner surface of the cartridge 40. To this end, the height of the cartridge leg 46 is preferably higher than the height of the body leg (22).

Through holes 48 are formed in the lower plate 42 and the upper plate 44, respectively. The through part 48 is provided at a position corresponding to the turntable 26 of the main body 20, and is for preventing interference with the turntable 26. The position of the through portion 48 is a position corresponding to the central through hole formed in the center of the disc when half of the disc is inserted into the cartridge 40.

On the other hand, the mounting finger 49 is provided on both ends of the free end side of the lower plate 42 and the upper plate 44. The mounting finger 49 is inserted into the mounting groove 32 of the main body 20 so that the cartridge 40 is coupled to the main body 20. The mounting finger 49 is preferably dimensioned so that it can be pressed into the mounting groove (32). This is to prevent the cartridge 40 from being separated from the main body 20 during the rotation of the disk. Of course, the mounting finger 49 and the mounting groove 32 may have a structure coupled to each other.

Next, another embodiment of the present invention will be described with reference to FIGS. 8 to 10. In this embodiment, a configuration similar to the embodiment described above will be described with reference numerals of 100 units.

As shown in the drawings, the housing 121 forms the appearance of the main body 120 of the disc drive. The housing 121 constitutes an appearance of the main body 120 and protects parts and disks installed in the main body 120. The main body 120 is a substantially rectangular shape in plan view, and the relatively long side is formed to be slightly larger than the diameter of the disk, and the relatively short side is formed to have a value of about half of the diameter of the disk.

The lower surface of the main body 120 is provided with a main body leg 122 at least at its four corners. The main body leg 122 serves to support the main body 120 at a predetermined height and to prevent slipping with respect to the supported bottom surface. To this end, the body leg 22 is preferably formed of a material capable of generating a friction force or at least the bottom surface is provided with a material having a good friction force.

Various parts are installed in the main body 120. That is, components for rotating the disc and recording and reproducing the signal are provided. For example, a printed circuit board, a spindle motor, an optical pickup, a sled motor providing power for transferring the optical pickup, and the like are installed. In the present specification, the parts installation part 123 is shown by hatching for convenience of illustration.

The disk rotation space 124 is formed inside the main body 120. The disk rotating space 124 is a portion in which the disk is rotated inside the main body 120, and is actually a space excluding the component installation part 123 in the housing 121.

The turntable 126 is installed on a surface constituting the bottom of the disk rotating space 124. The disk is seated on the turntable 126. The turntable 126 is rotated by the spindle motor to rotate the disk. The mounting protrusion 127 is provided on an upper surface of the turntable 126. The mounting protrusion 127 is a portion inserted into the central hole of the disk. Clamp protrusions 128 are provided to fix the disks surrounding the outer circumferential surface edges of the mounting protrusions 127 to the turntable 126. The front end of the clamp protrusion 128 protrudes with an elastic force of a spring to the outer circumferential surface of the mounting protrusion 127. The clamp protrusion 128 is accommodated into the mounting protrusion 127 in the process of inserting the mounting protrusion 127 into the central through hole of the disc. When the mounting protrusion 127 is completely inserted into the central through hole, the spring elasticity of the spring is fixed. It protrudes again by hanging on the edge of the center hole corresponding to the upper surface of the disk to fix the disk to the turntable 126.

The pressing opening 130 is formed in the housing 121 corresponding to the upper portion of the turntable 126. The pressing opening 130 serves to shield the top of the turntable 126 from the outside.

Mounting grooves 132 are provided at both ends of the main body 120, that is, at both ends of the housing 121 corresponding to both ends of the disc rotation space 124 opening to the outside of the main body 120. The mounting groove 132 is a configuration for mounting the cartridge 140 to be described below to the main body 120.

The cartridge 140 performs a function of shielding the disk portion protruding to the outside of the main body 120. The cartridge 140 is, as shown in Figure 10, the lower plate 142 and the upper plate 144, which is a substantially quadrilateral plate is connected at one end to overlap or unfold each other. The lower plate 142 and the upper plate 144 may be rotatably connected to each other by a hinge pin, or may be integrally formed as a mold and connected to each other to be relatively thin so as to be rotatable with each other. When the lower plate 142 and the upper plate 144 overlap each other, it is preferable to have a configuration to be fastened.

A seating space 142 ′ is formed in the lower plate 142. The seating space 142 ′ is formed to be recessed on a surface of the lower plate 142 facing the upper plate 144. The seating space 142 ′ is formed to be at or slightly deeper than the thickness of the disk. The upper plate 144 also has a seating space 144 ′ formed on a surface facing the lower plate 142. These seating spaces 142 ', 144' cooperate with each other to form a space in which the disk can be positioned and rotated.

A cartridge leg 146 protrudes from the bottom surface of the cartridge 140. The cartridge leg 146 is provided at both edges of the bottom surface of the cartridge 140. In the embodiment shown in the drawings, the cartridge 140 is provided with the cartridge legs 146 at opposite opposite edges to which the cartridge 140 is coupled to the main body 120, but it is not necessarily the case. 146 may be placed.

The lower plate 142 has a through-hole 148 is formed. The through part 148 is provided at a position corresponding to the turntable 126 of the main body 120 to prevent interference with the turntable 126. The position of the through part 148 is a position corresponding to the central through hole formed in the center of the disc when half of the disc is inserted into the cartridge 140.

On the other hand, the mounting finger 149 is provided on both ends of the free end side of the lower plate 142. The mounting finger 149 is inserted into the mounting groove 132 of the main body 120 to allow the cartridge 140 to be coupled to the main body 120. The mounting finger 149 is preferably dimensioned so that it can be pressed into the mounting groove 132. This is to prevent the cartridge 140 from being separated from the main body 120 during the rotation of the disk. Of course, the mounting finger 149 and the mounting groove 132 may have a structure coupled to each other.

And, in the present embodiment, the top plate 144 is configured such that when the cartridge 140 is coupled to the main body 120, a part thereof overlaps the upper surface of the main body 120. Of course, for this purpose, grooves (not shown in the drawing) on which the upper plate 144 is seated are formed on a portion of the upper surface of the main body 120. The upper plate 144 shields the pressing opening 130 by being seated on the upper surface of the main body 120.

Hereinafter, the operation of the disk drive according to the present invention having the configuration as described above will be described in detail.

First, the operation of the embodiment shown in FIG. 3 will be described with reference to FIGS. 6 and 7. In this embodiment, the cartridge 40 is mounted on the main body 20 with the disk D inserted in the cartridge 40. That is, as shown in FIG. 5, half of the disk D is seated on the seating space 42 ′ of the lower plate 42 in a state where the lower plate 42 and the upper plate 44 of the cartridge 40 are opened.

Then, the upper plate 44 is to overlap on the lower plate 42. In this case, the mounting fingers 49 of the lower plate 42 and the upper plate 44 overlap each other, and as shown in FIG. 6, half of the disk D protrudes out of the cartridge 40. It is in a state.

The cartridge 40 in the above state is mounted on the main body 20. That is, the disk D protruding out of the cartridge 40 is inserted into the disk rotation space 24. The disk D is inserted into the disk rotation space 24 so that the mounting protrusion 27 of the turntable 26 is positioned in the central hole of the disk D. In this process, the clamp 28 descends from above the turntable 26 to fix the disk D to the turntable 26.

In addition, the mounting finger 49 of the cartridge 40 is inserted into the mounting groove 32 of the main body 20 while the disk D is inserted into the disk rotation space 24. When the mounting finger 49 of the cartridge 40 is inserted into the mounting groove 32, the cartridge 40 is fixed to the main body 20.

On the other hand, while the cartridge 40 is mounted on the main body 20, the cartridge leg 46 of the cartridge 40 and the main body leg 22 of the main body 20 support the entire disk drive at a constant height. Play a role. This state is illustrated in FIGS. 7A and 7B.

In this state, the cartridge 40 serves to protect the disk D rotated by the turntable 26. Therefore, no external force or the like acts on the disk D during the rotation of the disk D. FIG.

When the disk D needs to be replaced, the disk D inside the cartridge 40 is removed in the reverse order described above, and the other disk D is mounted on the cartridge 40 so as to be described above. You can go through the process again.

For reference, in the present embodiment, the length of the long side of the main body 20 may be 125 mm, the length of the short side may be 85 mm, the length of the long side of the cartridge 40 may be 125 mm, and the length of the short side may be 85 mm. Of course, the mounting finger 49 may have a length of 25 mm and a portion of the lower plate 42 and the upper plate 44 may overlap the shielding part 30. In this case, the disk drive in actual use becomes square with sides of 125 mm in plan view. In practice, however, the cartridge 40 can be detached when carrying, so that one side can be reduced by almost half.

Next, the embodiment shown in FIGS. 8 and 9 will be described with reference to FIGS. 10 and 11. Also in this embodiment, in order to mount the disk D, the cartridge 140 must be unfolded. In the state in which the lower plate 142 and the upper plate 144 are extended as shown in FIG. 10, the disk D is seated in the mounting space 142 ′ of the lower plate 142. Of course, only half of the disk D is seated in the mounting space 142 '.

The cartridge 140 is mounted on the main body 120 in a state where the disk D is seated in the mounting space 142 ′ of the lower plate 142. That is, the mounting finger 149 of the lower plate 142, as shown in Figure 11, to be inserted into the mounting groove 132 of the main body 120. In this case, the disk D is inserted into the disk rotation space 124 so that the central hole thereof is positioned on the mounting protrusion 127 of the turntable 126.

When the user presses the center hole edge of the disk D against the turntable 126 through the push opening 130, the mounting protrusion 127 in the center hole of the disk (D). As the clamp protrusion 128 is inserted into the mounting protrusion 127 while being inserted. When the mounting protrusion 127 is completely inserted into the central hole of the disc D, the clamp protrusion 128 protrudes again to prevent the disc D from being detached from the turntable 126. In this case, the disk D may be integrally rotated together by the rotation of the turntable 126.

Next, when the upper plate 144 is overlapped with the lower plate 142, the disk D is not visible to the outside. This state is shown in FIG. At this time, the upper plate 144 is preferably in a state coupled to each other so as not to be separated arbitrarily rather than simply placed on the lower plate 142.

When the disk D is rotated by the rotation of the turntable 126 in the state of FIG. 8, the optical pickup can move in the radial direction of the disk D to record a signal on the disk D or to reproduce the recorded signal. do.

In order to replace or remove the disk D, the top plate 144 is opened to expose the disk D, the disk D is detached from the mounting protrusion 127 of the turntable 126, and the cartridge 140 It may be removed from the main body 120.

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

For example, the configuration in which the disk D is clamped to the turntables 26 and 126 may employ various methods in addition to those described above, and the configuration in which the cartridges 40 and 140 are mounted to the main bodies 20 and 120 may also be various. It can employ | adopt.

On the other hand, the size of the main body 20, 120 may be slightly larger than that of the embodiment shown in the figure. That is, the size of the main body 20, 120 is larger than the half of the disk, and instead the size of the cartridge 40, 140 is relatively small.

According to the disk drive and the cartridge used according to the present invention as described in detail above, the following effects can be obtained.

In the present invention, in the external disk drive, about half of the disk protrudes outward from the main body, and is protected using a cartridge so that external force does not work when the disk is rotated. Therefore, the size of the disk drive can be made about half the size of the disk when carrying, thereby making it easier to carry the external disk drive.

Claims (20)

A main body provided with components for rotating the disk and recording / reproducing a signal therein, and at least half of the disk protrudes to the outside; Comprising a lower plate and the upper plate connected to overlap or unfold each other, a disk seating space is formed between the lower plate and the upper plate, and comprises a cartridge coupled to the main body to shield a portion of the disk protruding out of the main body Disk drive characterized in that. According to claim 1, wherein the main body is in the form of a hexahedron, the housing is configured as an appearance, the inside of the housing is provided with a component mounting portion for installing the various components and a disk rotation space to rotate the disk, the disk The disk drive, characterized in that the turntable is installed in the center of the inlet of the rotation space. The upper surface of the housing corresponding to the upper portion of the turntable is provided with a shield for shielding the turntable, and a clamp for fixing the disk to the turntable is raised and lowered as the disk enters and exits between the shield and the turntable. A disk drive, characterized in that the installation is possible. According to claim 2, wherein the upper surface of the housing corresponding to the top of the turntable is provided with a pressing opening so that the portion including the turntable is exposed, the disk surrounding the outer peripheral surface of the mounting protrusion formed on the upper surface of the turntable to the turntable A disk drive, characterized in that the fixing clamp projection is installed to protrude by the elastic force. The disk drive according to any one of claims 1 to 4, wherein a mounting finger inserted into the main body is provided at both ends of at least one of the lower plate and the upper plate. The disk drive according to claim 5, wherein the lower plate of the cartridge is provided with a through portion for preventing interference with the turntable. The disk drive according to claim 6, wherein a through part corresponding to the through part is formed in the top plate of the cartridge, and the top plate is inserted into the disc rotating space. 7. The disk drive of claim 6, wherein the top plate of the cartridge is mounted on an upper surface of the housing. The housing constitutes the exterior, and the component installation part formed therein is provided with a component for rotating the disk and recording / reproducing a signal. A disk rotating space is formed in which the disk is positioned and rotates. A body on which at least half of the disk is seated, And a cartridge configured to overlap and unfold the lower plate and the upper plate and to be mounted to the main body to shield a portion of the disc protruding from the main body. 10. The method of claim 9, wherein the turntable is provided in the portion corresponding to the center of the inlet of the disk rotation space, the insertion groove for inserting a portion of the cartridge is formed in the portions corresponding to both ends of the inlet of the disk rotation space, the cartridge The at least a lower plate of the disc drive, characterized in that the through hole for preventing interference with the turntable is formed, at least a lower plate of the lower plate and the upper plate of the cartridge is formed with a mounting finger inserted into the insertion groove. The disk drive according to claim 10, wherein a shield for shielding the turntable is formed in the housing corresponding to the upper side of the turntable, and a clamp for fixing the disk to the turntable is provided between the shield and the turntable. 12. The disk drive according to claim 11, wherein a through part corresponding to the through part is formed in the top plate of the cartridge, and the top plate is inserted into the disc rotating space. 11. The method of claim 10, wherein the upper surface of the housing corresponding to the top of the turntable is provided with a pressing opening so that the portion including the turntable is exposed, the disk surrounding the outer peripheral surface of the mounting protrusion formed on the upper surface of the turntable to the turntable A disk drive, characterized in that the fixing clamp projection is installed to protrude by the elastic force. 14. The disk drive of claim 13, wherein an upper end of the cartridge is seated on an upper surface of the housing. 15. The cartridge according to claim 13 or 14, wherein the lower surface of the main body and the cartridge are provided with a main body leg and a cartridge leg which are supported on the bottom surface and are prevented from sliding by friction, so that the cartridge is fixed so that the disc does not contact the cartridge. A disc drive characterized by being supported at a height. A housing having a component constituting part for installing the disk and recording of signals therein, and a disk rotating space for rotating the disk, and constituting the exterior; A turntable installed inside the housing corresponding to the inlet of the disk rotation space to seat and rotate the disk; A clamp protrusion protruding by an elastic force to an outer circumferential surface of the mounting protrusion provided on the upper surface of the turntable to fix the disk to the turntable; A cartridge coupled to the housing and shielding the disk protruding out of the housing; The cartridge includes a lower plate having a disk seating space in which a disk is seated, and a through portion formed at a center of a tip thereof to prevent interference with the turntable; An upper plate connected to overlap and unfold with respect to the lower plate and having a disc seating space corresponding to the disc seating space; A cartridge leg formed at a lower edge of the lower plate to support the cartridge; And a mounting finger formed to protrude from both ends of the lower plate and inserted into and coupled to the housing. 17. The disk drive according to claim 16, wherein a portion of the housing corresponding to the upper portion of the turntable is provided with a pressing opening for applying a force for mounting the disk to the turntable. delete 18. The disk drive according to claim 16 or 17, wherein the front end of the upper plate protrudes more than the front end of the lower plate so that a part of the upper plate rests on the upper surface of the housing. 20. The cartridge leg of claim 19, wherein a cartridge leg for supporting the cartridge at a predetermined height is formed at a lower edge of the lower plate, and a body leg is formed at a lower edge of the housing to cooperate with the cartridge leg to support the cartridge at a predetermined height. Disk drive.

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