KR20110012199A - Emergency eject device of optical disc drive - Google Patents

Abstract

An emergency eject device of an optical disc drive is disclosed. An emergency eject device of an optical disk drive of the present invention comprises: an emergency eject device of an optical disk drive, comprising: a drive motor; A plurality of gears for transmitting the rotational force generated by the drive motor; And a press unit for selectively contacting at least one of the gears such that at least one of the plurality of gears moves in the gear axis direction and is in an engaged or disengaged position with respect to at least one of the plurality of gears. It characterized in that it comprises a bracket. According to the present invention, gears can be engaged or disengaged with a simple structure.

Description

EMERGENCY EJECT DEVICE OF OPTICAL DISC DRIVE}

The present invention relates to an emergency ejection apparatus for an optical disk drive, and more particularly, to an emergency ejection apparatus for an optical disk drive capable of engaging or disengaging gears with a simple structure.

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-in 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 is to provide an emergency eject device of an optical disk drive that can engage or disengage gears with a simple structure.

Technical problems to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned above will be clearly understood by those skilled in the art from the following description. Could be.

The object is an emergency eject device (emergency eject device) of an optical disk drive, the drive motor; A plurality of gears for transmitting the rotational force generated by the drive motor; And selectively contacting the at least one gear such that at least one of the plurality of gears moves in a gear axial direction and is in an engaged or disengaged position relative to at least another of the plurality of gears. It can be achieved by the emergency eject device of the optical disk drive, characterized in that it comprises a bracket provided with a pressing portion.

The bracket may be moved by an external force and the pressing unit may selectively contact the at least one gear, but may move in an oblique direction with respect to the direction of the external force.

The bracket may include at least one guide for inducing the oblique movement of the bracket.

The guide may be a guide hole formed along the oblique direction to move along a shaft provided in the body of the optical disc drive.

The pressing unit may further include an elastic body that provides an elastic force to the bracket in a direction in which the contact is released from the at least one gear.

The at least one gear, the emergency ejection device of the optical disk drive, characterized in that sharing the gear shaft with the other gear.

By the emergency eject device of the optical disk drive according to the present invention, there is an effect that can engage or disconnect the gears in a simple structure.

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.

The mobile terminal described herein may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, and the like. However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, etc., except when applicable only to mobile terminals.

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 shot chassis 22 and the bottom chassis 24 may be provided by pressing a steel plate into a suitable shape, or injection molding plastics.

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.

FIG. 2 is a plan view of the chassis with the cover chassis removed from the slot shown in FIG.

As shown, the optical disk drive 10 according to an embodiment of the present invention is a clamp unit 30 for generating a rotating force by chucking (loaded) the optical disk (D), and in the rotating optical disk (D) An optical pickup unit 40 for reading or recording data, guide arms 50 and 60 for guiding movement in the loading or unloading process of the optical disc D, and an emergency ejection device 70 are included.

The clamp unit 30 refers to an apparatus for rotating the optical disc D by the rotational force generated by the spindle motor (not shown). The clamp unit 30 is coupled to the lifting frame 32 for chucking the loaded optical disk D, the turntable 34 in contact with the clamping region D1 of the optical disk D, and the upper clamp (not shown). A clamp head 36 and an optical disk fixing portion 38 for generating a coupling force in the inner circumference of the optical disk D are included.

The lifting frame 32 is provided obliquely in a diagonal direction at the center of the optical disk drive 10 where the turntable 34 is located. When loading of the optical disc D is completed, the lifting frame 32 moves upward in the thickness direction of the optical disc drive 10. When the elevating frame 32 is moved upwards, each component of the clamp unit 30 mounted to cooperate with the elevating frame 32 may be moved upward and coupled to the upper clamp (not shown).

The turntable 34 is a portion of the clamp portion 30 that substantially contacts the clamping region D1 of the optical disc D. FIG. The clamping area D1 means the innermost side of the optical disc D, and no data is recorded in the clamping area D1. When the lifting frame 32 is raised, the tentable 34 is in contact with a corresponding region of the upper clamp (not shown), and the optical disk D is inserted therebetween. The turntable 34 may be formed of a rubber material or a soft plastic material to increase the contact force of the optical disk D.

The clamp head 36 is a convex area above the center of the turntable 34. When the lifting frame 32 is raised, the clamp head 36 is coupled to the upper clamp (not shown), so that the coupling with the upper clamp (not shown) is not released until the lifting frame 32 is lowered. In addition, the clamp head 36 is provided with an optical disk fixing portion 38 to assist the clamp head 36 and the upper clamp (not shown) and the coupling between the clamp head 36 and the optical disk (D).

The optical pickup unit 40 is a portion that reads or records data from the optical disk D that is chucked and rotated by the clamp unit 30. The optical pickup unit 40 irradiates a laser onto the surface of the optical disc D, detects the reflected laser, and reads the data, and the optical pickup 42 at a position suitable for reading or recording the data. There is provided an optical pickup transfer unit (not shown) for moving.

The guide arms 50 and 60 provide a driving force to the loaded or unloaded optical disc D, or guide the moving optical disc D to be positioned at the correct position. The guide arms 60 and 60 may be moved by the driving force generated by the driving motor 71 included in the emergency eject device 70. The guide arms 50 and 60 are provided in parallel with the optical disk insertion hole 28 and are in contact with one surface of the optical disk D to be loaded or unloaded, and have roller guides (not shown) for applying a driving force to the optical disk D. The first and second guide arms 50 and 60 guide the movement of the optical disc D on the left and right sides of the unloaded optical disc D. In the drawing of FIG. 2, the right side of the clamp unit 30 is the first guide arm 50, and the left side is the second guide arm 60.

When the optical disc D is inserted, the first guide arm 50 primarily moves along the outer circumferential surface of the optical disc D loaded in contact with the outer circumferential surface of the optical disc D. The first guide arm 50 restrains the rightward movement of the optical disc D to be inserted. This will be described in detail as follows. That is, the optical disk D is loaded into the optical disk drive 10 by the user's external force to the optical disk insertion hole (28 in FIG. 1) and the driving force by the roller guide (not shown) and the force pushing the optical disk D. . In this case, even when a force for moving the optical disc D to the right is applied, the movement is limited by the first guide arm 50. In addition, when the loading of the optical disc D proceeds for a predetermined level or more, the first guide arm 50 serves to push the optical disc D into the optical disc drive 10.

When the optical disc D is inserted, the second guide arm 60 comes into contact with the outer circumferential surface of the optical disc D second after the first guide arm 50. The second guide arm 60 guides the movement of the optical disk D in the left front side of the optical disk D to be inserted. This will be described in detail as follows. That is, when the side surface of the optical disk D inserted and loaded into the optical disk insertion hole (28 in FIG. 1) contacts the second guide arm 60 at the initial position A, the optical disk D is loaded by the moving force. The second guide arm 60 rotates in the rotational direction R about the hinge axis 62. The second guide arm 60 rotated in the rotational direction R about the hinge shaft 62 may be moved to the final position B, and the second guide arm 60 may be moved to the final position B. When the optical disk D is loaded, the loading process is finished, and the chucking process by the clamp unit 30 is performed.

The first and second guide arms 50 and 60 operate by the driving force generated by the driving device 71 included in the emergency ejection device 70. That is, when the motor that is the driving device 71 rotates, the driving force is transmitted through the gear unit 80 included in the emergency ejection device 70. The driving force transmitted through the gear unit 80 is transmitted to the rack gear 91. The driving force generated by the driving device 71 is a rotational force up to the gear unit 80, but is transmitted to the rack gear 91 and becomes a linear movement in the front-rear direction of the optical disk drive 10. The end of the rack gear 91 is connected to the link portion 93. Therefore, when the rack gear 91 moves to the rear of the optical disk drive 10, the link portion 93 becomes a first link portion state 93a that is linear in the horizontal direction of the optical disk drive 10, and the rack gear 91 Is moved forward of the optical disk drive 10, the link portion 93 is in the second link portion state 93b in which the middle of the link portion 93 is bent. The other end of the link portion 93 is connected to the second guide arm 60. Therefore, when the link portion 93 is in the first link portion state 93a, the second guide arm 60 is in the first guide arm state 60a, and the link portion 93 is in the second link portion state (a). 93a), the second guide arm 60 is moved to the second guide arm state 60b. The first guide arm state 60a is a state in which the optical disc D is pushed out or waiting for the insertion of the optical disc D. The second guide arm state 60b is an optical disc D in which the optical disc D is connected to the optical disc drive 10. ) It is inserted inside.

The emergency eject device 70 may remove the optical disk D inserted into the optical disk drive 10. In the normal operating state, as described above, the first and second guide arms 60 and 70 operate by the driving force transmitted from the driving motor 71 to perform insertion and withdrawal operations on the optical disc D. However, a normal situation may occur such as a power failure or a failure of the driving motor 71. In this case, a situation may arise in which the optical disk D accommodated in the optical disk drive 10 needs to be drawn out of the optical disk drive 10. However, as described above, the movement of the first and second guide arms 50 and 60 is performed by transmitting the driving force generated from the driving motor 71 to the gear unit 80. However, since the gears included in the gear unit 80 are engaged with each other when the power is cut off, it is not easy to allow the first and second guide arms 50 and 60 to move. Emergency ejection apparatus 70 according to an embodiment of the present invention, through the operation of inserting the pin (P) through the insertion hole (not shown), at the same time to eliminate the engagement of the gear unit 80, the optical disk drive ( The rack gear 91 may be moved in the rear direction of the 10). Hereinafter, to describe the specific configuration and operation of the emergency eject device 70 according to an embodiment of the present invention.

FIG. 3 is a plan view when the bracket of the emergency eject device of FIG. 2 is in the first state, and FIG. 4 is a plan view when the bracket of the emergency eject device of FIG. 2 is in the second state.

These drawings, in order to clearly show the operation of the bracket (B) according to an embodiment of the present invention, the configuration of the gear portion (80 of FIG. 1) and the like is omitted.

As shown in these drawings, the bracket B according to the embodiment of the present invention includes a guide hole 53 coupled to the shaft 55 protruding from the bottom chassis 24 and the pressing portion 51. And, it can be connected to the spring (S).

The guide hole 53 is provided in the diagonal direction with respect to the insertion direction D1 of the pin P. As shown in FIG. The insertion direction D1 of the pin P is the front-rear direction of the optical disk drive 10, and the diagonal direction in which the guide hole 53 is provided may be an angle of 45 degrees to 60 degrees with respect to the front surface of the optical disk drive 10. Since the guide hole 53 is provided obliquely with respect to the insertion direction D1 of the pin P, the load applied to the moment when the user inserts the pin P can be reduced. That is, when the guide hole 53 is parallel to the insertion direction D1 of the pin P, when the pin P is inserted, the resistance due to the elastic force by the spring S is transmitted to the pin P. However, when the guide hole 53 is provided at an angle, when the pin P is inserted in the insertion direction D1, the bracket B moves obliquely along the direction of the guide hole 53. Therefore, the spring ( The elastic force due to S) is dispersed to reduce the resistance applied to the pin P. The guide hole 53 may be provided in plural, as shown in the drawing, but in some cases, one may be provided. The shaft 55 protruding from the bottom chassis 24 may be coupled to the guide hole 53.

The shaft 55 is coupled to the inside of the guide hole 53, so that the guide hole 53 can move along it. Although the shaft 55 according to an embodiment of the present invention will be described as protruding from the bottom chassis 24, the shaft 55 is sufficient to be fixed to another structure of the optical disk drive 10 rather than the bracket B. . In addition, the shaft 55 may be provided separately from the bottom chassis 24 and may be fixed. The shaft 55 may be coupled to each guide hole 53. That is, when there are a plurality of guide holes 53, it means that the shaft 55 can be coupled to each guide hole 53.

The pressing part 51 is a part which presses the 3rd gear (G3 of FIG. 7) when the bracket B moves to diagonal direction. The pressing part 51 is a shape in which one end of the bracket B is bent. Therefore, when the bracket B moves in the oblique direction, the pressing unit 51 presses the third gear (G3 of FIG. 7). On the other hand, the auxiliary pressing unit 57 may be provided near the pressing unit 51. The auxiliary pressing part 57 moves together with the pressing part 51 to pressurize the third gear (G3 in FIG. 7). As will be described in detail below, the bite of the gear portion (80 of FIG. 2) is released by the action of the pressing portion 51.

The spring S provides an elastic force for the bracket B moved in the diagonal direction to return to the original position. That is, after the bracket (B) is moved, when the pin (P) is removed, the bracket (B) is returned to its original position by the elastic force of the spring (S).

As shown in FIG. 3, the first state is a state before the user presses the pin P in the first direction D1. In the first state, the bracket B is pulled to the initial position by the elastic force of the spring S.

As shown in FIG. 4, the second state is a state in which the user presses the pin P in the first direction D1. When the pin P is pressed in the first direction D1, the bracket B is subjected to an external force. When the force pushed in the first direction D1 exceeds the elastic force of the spring S, the bracket B moves in the second direction D2. The second direction D2 is a direction oblique at a predetermined angle with the first direction D1. The second direction D2 is determined by the direction of the guide hole 53 provided in the bracket B. The guide hole 53 is preferably provided at an angle of 45 degrees to 60 degrees with respect to the entire surface of the optical disk drive 10. At this angle, while the user minimizes the pressing force for pressing the pin P in the first direction D1, the movement of the bracket B may be smooth. In the process of moving the bracket B in the second state, the pressing portion 51 formed integrally with the bracket B is also moved. On the other hand, when the user removes the pin (P), the bracket (B) is returned to the initial position by the elastic force of the spring (S).

5 is a view showing a coupling relationship of the gear of the emergency eject device of FIG.

As shown in FIG. 2, the driving force generated by the driving motor (71 of FIG. 2) is transmitted to the first gear G1. The driving force transmitted to the first gear G1 is transmitted to the second gear G2 in a worm gear relationship. The driving force transmitted to the second gear G2 is transmitted to the third gear G3 provided therein. The driving force transmitted to the third gear G3 is transmitted to the fourth gear G4. Although the first gear G1 and the second gear G2 are separated from each other in the drawing, this is a display method for convenience of explanation, and the first and second gears G1 and G2 are meshed with each other.

The third gear G3 is located inside the second gear G2. That is, the third gear G3a of the third gear G3 meshes inside the second gear G2a of the second gear G2. In the third gear G3 according to the exemplary embodiment of the present invention, the third gear G3 moves in the up and down direction (z direction) and the gears G1 to G4 are engaged or released.

6 and 7 are cross-sectional views when the gear 5 is in the first and second states.

As shown in FIG. 6, when the bracket B is in the initial position, the third gear G3 and the second gear G2 are in a state of being bitten from each other. That is, the third gear receives the elastic force downward (in the opposite direction of z) by the gear spring G23p located below the second gear G2. Therefore, when there is no external force, the second gear G2 is moved downward (in the opposite direction of z).

As shown in FIG. 7, when the pin (P in FIG. 4) moves in the first direction (D1 in FIG. 4) and the bracket B moves in the third direction D3, the pressing unit 51 may move. Press the upper portion of the third gear (G3). The second gear G2 and the third gear G3 share a gear shaft. The 3rd gear G3 by which the upper part was pressed moves to the upper direction (z direction) which is 4th direction D3 along 2nd, 3rd gear axis G23S. When the third gear G3 is moved, the bite with the second gear G2 is released. Since the bite of the second gear G2 and the third gear G3 is released from the gear portion 80 of FIG. 1, the rack gear (91 in FIG. 2) is moved to the optical disk drive (10 in FIG. 2) by the pin P. Can be easily pushed to the rear. When the rack gear (91 in FIG. 2) is moved, the optical disk D may be taken out by the action of the first and second guide arms (50 and 60 in FIG. 2).

8 and 9 are rear views when the brackets of the emergency eject apparatus of FIG. 1 are in the first and second states.

As shown in FIG. 8, the first state is a state before the user presses the bracket B with the pin P. FIG. In the first state, the gears are in a mutually bite state, so that even if the user tries to push the rack gear 91 backward by force, the rack gear 91 is not easily moved.

As shown in FIG. 9, in the second state, the user presses the bracket B with the pin P so that the bracket B is moved in the second direction D2. Since the bracket B is moved in the second direction D2, the pressing unit 51 presses the third gear G3 to move the third gear G3 in the direction of the second and third gear axes G23S. . When the third gear G3 moves in the second and third gear axes G23S, the bites of the gears are released. Therefore, in this state, when the user pushes the rack gear 91 further by pushing the pin P further, the rack gear 91 can be moved backward without any resistance. When the rack gear 91 is pushed backward, the optical disk (D in FIG. 2) is drawn out as described above.

Although the above has been described with reference to embodiments of the present invention, those skilled in the art may variously modify the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. And can be changed easily.

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

FIG. 2 is a plan view of the type optical disc drive being the slot of FIG.

3 is a plan view of the bracket of the emergency eject device of FIG. 2 in a first state;

4 is a plan view when the bracket of the emergency eject device of FIG. 2 is in the second state.

5 is a view showing a coupling relationship of the gear of the emergency eject device of FIG.

6 and 7 are cross-sectional views when the gear 5 is in the first and second states.

8 and 9 are rear views when the brackets of the emergency eject apparatus of FIG. 1 are in the first and second states.

<Description of the symbols for the main parts of the drawings>

10: optical disc drive 20: main body

30: clamp portion 40: optical pickup portion

50, 60: guide arm 70: emergency eject device

Claims (6)

In the emergency eject device of the optical disc drive, Drive motor; A plurality of gears for transmitting the rotational force generated by the drive motor; And Pressurized to selectively contact at least one of the gears such that at least one of the plurality of gears moves in a gear axis direction and is in an engaged or disengaged position relative to at least another of the plurality of gears Emergency ejection apparatus for an optical disk drive, characterized in that it comprises a bracket provided. The method of claim 1, The bracket, An emergency ejection apparatus for an optical disc drive, wherein the pressing unit selectively moves in contact with the at least one gear, and moves in an oblique direction with respect to the direction of the external force. 3. The method of claim 2, The bracket, And at least one guide for inducing the oblique movement of the bracket. The method of claim 3, wherein The guide, Emergency ejection apparatus of the optical disk drive, characterized in that the guide hole formed along the oblique direction to be moved along the shaft provided in the body of the optical disk drive. The method of claim 1, And an elastic body for applying an elastic force to the bracket in a direction in which the pressing unit is released from the at least one gear. The method of claim 1, The at least one gear, Emergency ejection apparatus of an optical disc drive, characterized in that for sharing the gear shaft with the other gear.

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