KR20110109254A

KR20110109254A - Optical disc drive

Info

Publication number: KR20110109254A
Application number: KR1020100028898A
Authority: KR
Inventors: 송근혁
Original assignee: 주식회사 히타치엘지 데이터 스토리지 코리아
Priority date: 2010-03-31
Filing date: 2010-03-31
Publication date: 2011-10-06

Abstract

An optical disc drive is disclosed. An optical disc drive of the present invention includes an optical disc drive including a plurality of guide levers for guiding movement of an optical disc, wherein at least one of the guide levers has a rotation range that varies depending on a diameter of the optical disc. The rotation range of the guide lever is determined by a lever plate for guiding different paths according to the diameter of the optical disk. According to the present invention, it is possible to guide the optical disk paths of different diameters with a simpler structure.

Description

Optical Disc Drive {OPTICAL DISC DRIVE}

The present invention relates to an optical disc drive, and more particularly, to an optical disc drive capable of guiding optical disc paths having different diameters.

In general, an optical disc drive (ODD) refers to a device that records or reads data by using a laser on various types of optical discs such as a CD, a DVD, a BD, and the like.

The optical disk has the advantage of being portable despite the large capacity. In addition, in the past, recording was possible only once, but recently, an optical disc that can be rewritten repeatedly has been used, and convenience has been gradually increasing.

An optical disc drive for writing or reading data to an optical disc includes a tray type optical disc drive for loading or unloading an optical disc by loading the optical disc in a tray and an optical disc in the front opening. When inserted, there is a slot type optical disk drive in which an optical disk is automatically inserted into the optical disk drive by a driving motor.

A slot-in type optical disc drive loads or unloads an optical disc through a plurality of rollers that contact the side of the optical disc and guide the movement of the optical disc. Since the tray and the mechanism necessary for driving the tray are omitted, the slot-in type optical disc drive can be designed slimmer than the tray type optical disc drive, and can produce a higher-quality image than the tray type optical disc drive. For this reason, slot-in type optical disc drives are used for space-limited vehicles and the like.

The present invention relates to an optical disc drive capable of guiding optical disc paths of different diameters with a simpler structure.

In an optical disk drive according to an embodiment of the present invention for realizing the above object, the optical disk drive comprising a plurality of guide levers for guiding the movement of the optical disk, at least one of the guide levers to the diameter of the optical disk The rotation range is different, and the rotation range of the at least one guide lever may be determined by a lever plate for guiding different paths according to the diameter of the optical disk.

The at least one guide lever rotates about one axis and contacts an outer circumference of an optical disk having a different diameter therebetween, and the path includes: a first path guiding the rotation range according to the optical disk having a first diameter among the optical disks; And a second path for guiding the rotation range according to the optical disc of the second diameter among the optical discs.

Further comprising a main plate to linearly move in one direction by the generated driving force, the lever plate is moved in a direction substantially perpendicular to the one direction and the guide lever to rotate along any one of the first and second paths. can do.

It may further include a switching lever for rotating around the one axis coupled to the bottom chassis, the driving force from the main plate to the lever plate.

The first and second paths are through holes provided in the lever plate, and at least one guide lever includes a boss inserted into the through hole to rotate the lever plate along any one of the first and second paths. Can be prepared.

In addition, the optical disk drive according to an embodiment of the present invention for realizing the above object, the optical disk drive comprising a plurality of guide levers for guiding the moving direction of the optical disk, at least one of the guide lever, the optical disk The optical disk is guided to prevent the optical disk from deviating laterally with respect to the loading and unloading direction of the optical disk, wherein the at least one guide lever rotates around a hinge axis, and has different paths depending on the diameter of the optical disk. It can be determined by the guiding lever plate.

The path may include a first path guiding the rotation range according to the optical disc of the first diameter among the optical discs, and a second path guiding the rotation range according to the optical disc of the second diameter among the optical discs.

The optical disk drive according to the present invention has the effect of guiding optical disk paths having different diameters with a simpler structure.

1 is a perspective view of a slot-in type optical disk drive according to an embodiment of the present invention.
2 is a plan view when an optical disc of 12 cm in diameter is loaded.
3 is a rear view when an optical disk having a diameter of 12 cm is loaded.
4 is a plan view when an optical disc of 8 cm in diameter is loaded.
5 is a rear view when an optical disc of 8 cm in diameter is loaded.
6 and 7 illustrate the operation of the main plate and the lever plate.

The above objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. It is to be understood, however, that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities. Like reference numerals designate like elements throughout the specification. In addition, when it is determined that the detailed description of the known function or configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, the numbers (eg, first, second, etc.) used in the description process of the present specification are merely identification symbols for distinguishing one component from another component.

Hereinafter, a mobile terminal according to the present invention will be described in more detail with reference to the accompanying drawings. The suffixes "module" and "unit" for components used in the following description are given or used in consideration of ease of specification, and do not have distinct meanings or roles from each other.

1 is a perspective view of a slot-in type optical disk drive according to an embodiment of the present invention.

As shown therein, the slot-in type optical disc drive 10 according to an embodiment of the present invention includes a main body 20, a bezel 26 on the front surface of the main body 20, and a bezel. And an optical disk insertion hole 28 provided at 26.

The main body 20 forms the appearance of the optical disk drive 10. The main body 20 forming the exterior protects each component inside from an external impact. Slot type optical disk drive 10 according to an embodiment of the present invention, the thickness of the main body 20 can be designed thinner than the tray type optical disk drive provided with components such as a tray therein. The main body 20 is formed by assembling the cover chassis 22 and the bottom chassis 24. The cover sash 22 and the bottom sash 24 may be provided by pressing a steel plate into a suitable shape, or injection molding a plastic.

The bezel 26 is provided on the front surface of the main body 20. The bezel 26 may be provided by injecting plastic separately from the main body 20, and in some cases, the bezel 26 may be integrally formed with the cover chassis 22 or the bottom chassis 24. The bezel 26 may be provided with an operation button 27 for controlling the operation of the optical disc drive 10 and an indicator light 25 indicating an operation state of the optical disc drive 10. In addition, the bezel 26 may be provided with an optical disk insertion hole 28.

The optical disk insertion hole 28 inserts the optical disk D to load the optical disk D into the main body 20, or unloads the optical disk D to which the optical disk D has been loaded. It is a passage discharged to outside. The slot-in type optical disc drive 10 according to an embodiment of the present invention is not a type in which a tray is inserted or removed. Therefore, the separate structure does not protrude out of the main body 20, the optical disk (D) can be loaded by the operation of pushing the optical disk (D) with a slight force to the optical disk insertion opening 28.

2 is a plan view when an optical disc of 12 cm in diameter is loaded.

As shown in the drawing, the optical disk drive 10 according to an embodiment of the present invention is directly or indirectly coupled to the bottom chassis B and the bottom chassis B to be loaded or unloaded. In the process may include a guide lever (L) for guiding the optical disk (D).

The bottom chassis B is provided inside the housing 20 of FIG. 1 to which various configurations of the optical disk drive 10 are coupled. The bottom chassis B may be a metal material which is easy to process while having corrosion resistance such as stainless steel. In the case of a metal material, the shape of the bottom chassis B may be made by a press working method.

The guide lever L may be coupled to the bottom chassis B to guide the position of the optical disc D. Hereinafter, a description will be given of the case where the optical disc D is unloaded by explaining the role and configuration of the guide lever L as an example of the case where the optical disc D is loaded. When the user pushes the optical disk D to the optical disk insertion hole (28 of FIG. 1) or more, the optical disk D may be transferred into the optical disk drive 10 and loaded by an operation of a driving unit (not shown). If a special structure does not exist in the process of transferring the optical disk (D), the optical disk (D) may not be transported to the correct position to be loaded. In order to prevent such a phenomenon, the guide lever L guides the optical disc D loaded at the left and right sides and the front side of the optical disc D. That is, the guide lever L may apply a force to the outer periphery of the optical disc D to move the optical disc D in a constant direction, or limit the movement in an unintended direction by contacting the outer periphery of the optical disc D. Can be. The guide lever L may include first to fourth guide levers L1 to L4.

The first guide lever L1 may be in contact with a side portion of the optical disc D to be loaded. That is, the first guide lever L1 means that the optical disk D can be prevented from excessively moving to the right with respect to the center point of the optical disk drive 10. The first roller R1 may be provided at a portion of the first guide lever L1 that contacts the outer peripheral side surface of the optical disc D. The first roller R1 is in contact with the outer circumferential side of the loaded optical disc D to rotate, thereby preventing a phenomenon in which friction between the optical disc D and the first guide lever L1 increases excessively.

The second and third guide levers L2 and L3 may contact the outer circumference of the optical disk D at the front side of the optical disk D to be loaded. That is, it means that the speed at which the optical disc D loaded into the optical disc drive 10 is loaded and entered can be properly limited. On the contrary, when the optical disc D is unloaded, the second and third guide drivers L2 and L3 may serve to push the optical disc D out of the optical disc drive 10. The second and third guide levers L2 and L3 may cross each other and guide the optical disk D. That is, the second guide lever L2 rotates about the hinge axis located at the right side from the center of the optical disc drive 10, and the third guide drive rotates about the hinge axis located at the left side from the center of the optical disc drive 10 ( L3) may cross each other and extend to contact the optical disk D. Second and third rollers R2 and R3 may be provided at portions where the second and third guides L2 and L3 are in contact with the outer peripheral side surface of the optical disc D.

The fourth guide lever L4 may be in contact with a side portion of the optical disk D to be loaded. That is, the fourth guide lever L4 is in contact with the side of the opposite side of the first guide lever L1 and means that the optical disk D can be guided. The optical disc D may be classified into several types according to its diameter, and typically, the diameter of the optical disc D may be 12 cm or 8 cm. In order to properly load optical disks D having different diameters, it may be necessary to change the angle at which the guide lever L is rotated. For example, when the diameter is large, as shown in FIG. 2, the fourth guide lever L4 is rotated about the first hinge H1 to be substantially parallel to the front-rear direction of the optical disk drive 10. This can be done. On the other hand, when the diameter is small, as shown in FIG. 4, it can be seen that the degree of rotation of the fourth guide lever L4 about the first hinge H1 is small. The change in the contact angle according to the diameter of the optical disc D may occur at each guide lever L. However, the second and third guided levers L2 and L3 are in contact with the optical disk D at the front side of the optical disk D, and the first and fourth guided drives L1 and L4 are in contact with both sides of the optical disk D. The details may differ from each other in that respect. In loading the optical disks D having different diameters, the fourth guide lever L4 may be configured as one link rather than a structure in which several links are combined. Therefore, as compared with the case where several links are formed in four sections, the structure is simpler, so assembly is easier and production cost can be reduced.

3 is a rear view when an optical disk having a diameter of 12 cm is loaded.

As shown, the optical disk drive 10 according to an embodiment of the present invention is the main plate (MP) and the main plate (MP) coupled to be movable in the left and right direction with respect to the bottom chassis (B), the main plate It may include a lever plate LP is received in the driving force from the (MP) is moved in the front and rear direction.

The main plate MP may move in the left and right directions of the optical disc drive 10 by the driving force transmitted from the driving unit (not shown). That is, the main plate (MP) is defective in the bottom chassis (B), it means that is coupled to the sliding movement in the left and right direction with respect to the bottom chassis (B).

The lever plate LP may cause the fourth guide lever L4 to rotate at different angles according to the diameter of the optical disc D. FIG. The lever plate LP may move in the front-rear direction of the optical disk drive 10 by receiving the driving force from the main plate MP. When the lever plate LP moves in the front-rear direction of the optical disc drive 10, the bosses 31 provided in the fourth guide lever L4 move the first and second paths P1 and P2 provided in the lever plate LP. Move along. At this time, the boss 31 is coupled to any one of the first and second paths P1 and P2 according to the diameter of the optical disk D currently being loaded. The first path P1 is a position where the boss 31 is coupled when the diameter of the optical disc D is 12 cm, and the second path P2 is a boss 31 when the diameter of the optical disc D is 8 cm. May be a position to be combined.

Among the first and second paths P1 and P2, the first path P1 may be provided outside the lever plate LP as compared with the second path P2. Therefore, when the boss 31 provided in the fourth guide lever L4 moves along the first path P1, the boss 31 moves along the second path P2, and is centered on the first hinge H1 of FIG. 2. As a result, the rotation angle of the fourth guide lever L4 can be increased. Therefore, the optical disk D having a larger diameter can be loaded. 3 shows a state in which an optical disk D having a diameter of 12 cm and a relatively large diameter is loaded. As shown in the drawing, when the optical disk D having a large diameter is loaded, the boss 31 of the fourth guide lever L4 may move along the first path P1. When the boss 31 moves along the first path P1 provided at the outer side, the angle at which the fourth guide lever L4 is rotated around the first hinge H1 becomes larger, so that an optical disk D having a diameter of 12 cm ) Can be loaded smoothly.

4 is a plan view when an optical disc of 8 cm in diameter is loaded.

As shown in the drawing, the optical disk drive 10 according to an embodiment of the present invention can smoothly load an optical disk D having a relatively small diameter.

As described above, the optical disc D may vary in diameter. 2 and 3 illustrate a case where the diameter of the optical disc D is 12 cm, and FIGS. 4 and 5 illustrate a case where the diameter of the optical disc D is 8 cm. As shown in FIGS. 4 and 5, when the diameter of the optical disc D is relatively small, when it is not properly guided, loading and unloading may not be performed smoothly.

The fourth guide lever L4 may rotate to optimize the diameter of the optical disc D in a clockwise direction about the first hinge H1 and guide the optical disc D. FIG. When the diameter of the optical disc D is small, the fourth guide lever L4 may have a smaller clockwise rotational angle than the case where the diameter is large. Since the rotation angle of the fourth guide lever L4 may be reduced, loading of the optical disc D having a relatively small diameter may be possible.

In addition to the fourth guided lever L4, the first to third guided levers L1 to L3 may also operate to be optimized for the optical disk D having a small diameter. For example, it means that the rotation angles of the first to third guide levers L1 to L3 can be smaller than that of the optical disk D having a large diameter.

5 is a rear view when an optical disc of 8 cm in diameter is loaded.

As shown in the drawing, when the optical disk D having a relatively small diameter is loaded, the boss 31 of the fourth guide lever L4 may move along the second path P2 of the lever plate LP. .

The second path P2 is a path formed inside the first path P1. As the boss 31 moves along the second path P2, the rotation angle of the fourth guide lever L4 around the first hinge H1 of FIG. 4 may be decreased. Since the rotation angle of the fourth guide lever L4 is reduced, even in the case of the optical disk D having a small diameter, the loading and unloading can be properly guided.

6 and 7 illustrate the operation of the main plate and the lever plate.

As shown in these figures, the main plate MP and the lever plate LP may transmit and receive a driving force through the switching lever 33.

As shown in FIG. 6, the main plate MP may move in the first direction D1 by receiving a driving force from a driving unit (not shown). When the main plate MP moves in the first direction D1, the main plate MP moves in the first direction D1 together with the first slot S1 provided in the main plate MP in a direction perpendicular to the first direction D1. do.

The first boss 34 of the switching lever 33 may be coupled to the first slot S1. As described above, the switching lever 33 may be coupled to the bottom chassis B via the second hinge H2. When the first slot S1 moves in the first direction D1 together with the main plate MP, the switching lever 33 is caused by the first boss 34 slidably coupled to the inside of the first slot S1. ) May be rotated in a clockwise direction about the second hinge (H2). When the switching lever 33 rotates clockwise, the lever plate LP is moved in the second direction due to the second boss 35 of the switching lever 33 coupled to the second slot S2 of the lever plate LP. Can move to (D2).

When the lever plate LP moves in the second direction D2, the boss 31 is along the first path P1 or the second path P2 depending on the diameter of the optical disk (D in FIG. 3) being loaded. 6 illustrates a case in which the vehicle moves along the second path P2.

As shown in FIG. 7, when the movement of the first plate D1 in the main plate MP proceeds, the lever plate LP is moved in the second direction D2. In the process of moving the lever plate LP, the switching lever 33 is rotated clockwise about the second hinge H2. The boss 31 may move along the second path P2, and as a result, the rotation angle of the fourth guide lever L4 of FIG. 3 may be increased.

In the above-described embodiments, the case where the optical disc is loaded has been described as an example, but as described above, the present invention can be applied to the case where the optical disc is unloaded.

In the above embodiments, the case where the diameter of the optical disc is 12cm or 8cm has been described, but the diameter of the optical disc is not limited thereto.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

10: optical disc drive 20: main body
MP: Main Plate LP: Lever Plate

Claims

An optical disc drive comprising a plurality of guide levers for guiding movement of an optical disc,
At least one of the guide levers, the rotation range varies depending on the diameter of the optical disk,
The rotation range of the at least one guide lever is
The optical disk drive, characterized in that determined by the lever plate for guiding different paths according to the diameter of the optical disk.

The method of claim 1,
The at least one guide lever rotates about one axis and contacts an outer circumference of an optical disc having a different diameter therebetween,
The route is,
And a second path for guiding the rotation range according to the optical disc of the first diameter among the optical discs, and a second path for guiding the rotation range according to the optical disc of the second diameter among the optical discs.

The method of claim 2,
Further comprising a main plate to linearly move in one direction by the generated driving force, the lever plate is moved in a direction substantially perpendicular to the one direction and the guide lever to rotate along any one of the first and second paths. An optical disk drive, characterized in that.

The method of claim 3, wherein
And a shift lever pivoting about one axis coupled to a bottom chassis to transfer the driving force from the main plate to the lever plate.

The method of claim 2,
The first and second paths are through holes provided in the lever plate,
The at least one guide lever, the optical disk drive, characterized in that the boss is inserted into the through hole to allow the lever plate to rotate along any one of the first and second paths.

An optical disc drive comprising a plurality of guide levers for guiding a moving direction of an optical disc,
At least one of the guide levers guides the optical disk to prevent the optical disk from deviating laterally with respect to the loading and unloading direction of the optical disk,
The at least one guide lever,
An optical disk drive that rotates about a hinge axis and is determined by a lever plate that guides different paths according to the diameter of the optical disk.

The method of claim 6,
The route is,
And a second path for guiding the rotation range according to the optical disc of the first diameter among the optical discs, and a second path for guiding the rotation range according to the optical disc of the second diameter among the optical discs.