KR100247783B1 - Tilt control structure of a cartridge for an optical disk recording/reproducing assembly optical disk - Google Patents

Abstract

The present invention relates to a tilt adjustment structure of a cartridge for an optical disc recording and reproducing apparatus, wherein first and second through holes are formed on a bottom surface of a tray, and the centers of the first and second through holes are formed on a bottom surface of the cartridge. First and second horizontal holding grooves are formed, and the protruding pieces integrally protruding from both sides of the deck base are provided with a horizontal adjusting member for adjusting the tilting of the cartridge, so that the horizontality of the cartridge seated inclined on the tray The management can be simplified, which prevents the optical disk surface from contacting the inner surface of the cartridge when the optical disk is loaded, and accordingly, it is possible to accurately record / reproduce the information on the recording surface of the optical disk. can do.

Description

Tilt adjustment structure of cartridge for optical disc recorder

The present invention relates to a tilt adjustment structure of a cartridge (cartridge) for an optical disk recording and reproducing apparatus, and more particularly, to manage the horizontality of the cartridge during loading of the optical disk, and the surface of the optical disk housed inside and inside the cartridge. A tilt adjustment structure of a cartridge for an optical disc recording / reproducing apparatus, which can prevent contact of a disc.

In general, an optical disc D used in a recording / reproducing apparatus such as a digital versatile disc (DVD) is a type of recording medium for recording information in a concentric track or reproducing the recorded information. A conventional optical disk recording / reproducing apparatus for loading / unloading a cartridge containing an optical disk has a tray for seating the cartridge 10 in which the optical disk D is accommodated, as shown in FIGS. 14 and a case 22 in which the tray 14 is taken out and / or retracted forwardly or internally, and a deck base 24 for loading / unloading an optical disc, and the case 22 are installed in the case 22. The cover plate 32 is coupled to the upper portion.

In addition, a loading mechanism (not shown) is installed in the case 22 so as to load / unload the optical disk and raise and lower the deck base 24 at a predetermined angle. In the upper portion, an optical pickup device 2 for recording or reproducing information on an optical disk loaded by a loading mechanism is provided to be capable of linear reciprocating movement. This optical pickup device 2 records / reproduces information by radiating a semiconductor laser beam to a pit of a recording surface that rotates in a linear velocity manner.

Here, the shutter 10 is mounted on one surface of the cartridge 10 so that the magnetic portion of the optical disk is exposed to the objective lens of the optical pickup device, and the seating grooves 10a and both sides of the bottom surface of the cartridge 10 are mounted. Horizontal holding grooves 10b are formed, respectively.

A pair of seating protrusions 16 protrude from the bottom surface of the tray 14 so as to be inserted into the seating recesses 10a to prevent the flow of the cartridge 10, and a through hole is formed at one side of the seating protrusion 16. 14a) is formed, and a holder 18 for firmly holding the cartridge 10 is provided on the rear side so as to be reciprocated.

A pair of pressing portions 18a for pressing one surface of the cartridge 10 are integrally formed on both sides of the holder 18. One end of the compression spring 20 is connected to one end of the pressurizing portion 18a so that one end of the compression spring 20 is connected to the tray 14 to maintain the pressing force. Reference numeral 20 is a compression spring.

A spindle motor 26 is mounted on the deck base 24 to rotate the optical disk, and a turntable 28 into which the non-magnetic portion of the optical disk is in close contact is inserted into the rotating shaft thereof, and both sides of the turntable 28 are pressed. It is penetrated through the through hole 14a of the tray 14 and inserted into the horizontal holding groove 10b to fix the position projection 30 for managing the position of the cartridge 10, that is, the horizontal level.

The rocker 34 is fixed to the upper surface of the cover plate 32 by caulking, and one end of the rocker 34 clamps the nonmagnetic portion of the optical disk to the upper surface of the turntable 28 to chuck it. Is fitted.

In the conventional optical disk recording and reproducing apparatus configured as described above, when the ejecting button (not shown) mounted on the front of the case 22 is pressed in order to record information on or reproduce information from the optical disk, The tray 14 is taken out while the tray 14 is horizontally moved forward of the case 22 by the driving force.

Thereafter, the cartridge 10 in which the optical disk is accommodated is seated on the taken out tray 14. That is, the mounting groove 10a is inserted into the mounting protrusion 16 of the tray 14 in a state in which the cartridge 10 is inclined at a predetermined angle with respect to the tray 14. At this time, the pressing portion 18a formed in the holder 18 is pushed backward while being in surface contact with one surface of the cartridge 10 by the entry force of the cartridge 10, the compression spring 20 connected to the pressing portion 18a Maintains compression.

Then, when the bottom surface of the cartridge 10 is brought into close contact with the bottom surface of the tray 14, the cartridge 18a continuously presses one surface of the cartridge 10 by the restoring force of the compression spring 20. The microflow of (10) is prevented.

When the ejecting button is pressed again when the mounting of the cartridge 10 is completed on the tray 14 as described above, the loading mechanism installed in the case 22 is operated to draw the tray into the case. At this time, as the shutter 12 is moved in one direction by the shutter opening member (not shown) mounted on the bottom surface of the cover plate 32, the nonmagnetic portion and the magnetic portion of the optical disk are exposed to the outside.

When the tray 14 is completely inserted into the case 22, the deck base 24 is raised by the operation of the loading mechanism, and the nonmagnetic portion of the optical disk is firmly on the turntable 28 by the clamper 36. In close contact with each other, the pair of position protrusions 30 fixed to the upper surface of the deck base 24 are penetrated into the through holes 14a of the tray 14 and inserted into the horizontal holding grooves 10b of the cartridge 10. The level of the cartridge 10 was maintained.

However, since the horizontality of the cartridge in which the optical disk is accommodated is maintained at the position projection and the bottom surface of the tray as described above, it is difficult to manage the horizontality and the cartridge is placed on the bottom surface of the tray as shown in FIG. Tilt in one direction with respect to the inner surface of the cartridge and the surface of the optical disk is in contact with each other not only damage the recording surface of the optical disk, but also has the disadvantage that can not accurately record / reproduce information on the optical disk.

In order to compensate for the above problems, the inner space of the cartridge can be increased so that the optical disk surface does not come into contact with the inner surface of the cartridge, but there is a problem that the optical disk recording and reproducing apparatus cannot be made thinner.

The present invention is to solve the above problems, the object of the present invention is to adjust the horizontal level of the cartridge seated inclined on the tray, the management of the horizontal level can be simplified, so that the inner surface of the cartridge when loading the optical disk The optical disk surface is prevented from coming into contact with the surface of the optical disk, and accordingly, there is provided a tilt adjusting structure for the optical disk recording / reproducing apparatus, which can accurately record / reproduce information on the recording surface of the optical disk, and in particular, make the optical disk recording / reproducing apparatus thin. have.

1 is an exploded perspective view schematically showing an optical disc recording and reproducing apparatus according to the prior art;

FIG. 2 is a plan view showing a deck base applied to the optical disk recording and reproducing apparatus of FIG. 1 and a cartridge located thereon;

3 is a side cross-sectional view of the optical disk recording / reproducing apparatus shown in FIG. 2;

4 is an exploded perspective view showing a tilt adjustment structure of the cartridge for an optical disc recording and reproducing apparatus according to the present invention;

5 is a plan view combining the tilt adjustment structure of the cartridge shown in FIG.

6 is a side cross-sectional view showing an operating state of the tilt adjustment structure of the cartridge according to the present invention.

Explanation of symbols on the main parts of the drawings

50: cartridge 50a, 50b: first and second horizontal holding groove

60: tray 60b, 60c: first and second through holes

62: seating protrusion 70: deck base

72: protrusion 76: tilt cam

76a: insertion portion 76b: inclined surface

In order to solve the above problems, a feature of the present invention is a cartridge containing an optical disk mounted on the tray and a tray that can be taken out and retracted in the case and a cartridge installed inside the case to load the optical disk. A tilt adjustment structure of a deck base for unloading and a cartridge provided on the deck base to adjust the horizontality of a cartridge seated obliquely on the tray, the bottom surface of the tray having first and second through holes formed therein; The first and second horizontal holding grooves are formed on the bottom surface of the cartridge so as to coincide with the centers of the first and second through holes. The protrusions protrude from both sides of the deck base, and the cartridges are tilted. A horizontal adjusting member is provided to adjust the pressure, and the horizontal adjusting member is connected to the first and second horizontal holding grooves. By rotatably coupling to an upper surface of the projecting piece for insertion.

The horizontal adjusting member according to a preferred embodiment of the present invention is inclined so as to contact the surface of the cartridge and the insertion portion inserted into the first and second horizontal holding grooves of the cartridge while being passed through the first and second through holes of the tray. By a plurality of tilt cams having

Hereinafter, a preferred embodiment of the tilt adjustment structure of the cartridge for an optical disc recording / playback apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

4 and 5 illustrate a tilt adjustment structure of a cartridge according to the present invention, wherein a pair of first and second horizontal holding grooves 50a and 50b is disposed on a bottom surface of the cartridge 50 in which the optical disk is accommodated. It is provided to be spaced at a predetermined interval, the horizontal holding groove 50c and the mounting groove 50d are formed on both sides of the first horizontal holding groove 50a and the cartridge 50, respectively.

The mounting protrusion 62 protrudes from the bottom surface of the tray 60 on which the cartridge 50 is seated so as to be fitted into the mounting groove 50d, and the through hole 60a and the first bottom surface of one side of the mounting protrusion 62. A through hole 60b and a second through hole 60c spaced apart from each other by a predetermined distance are formed, and the through hole 60a, the first and second through holes 60b and 60c are cartridges 50, respectively. Is centered with the horizontal holding grooves 50c and the first and second horizontal holding grooves 50a and 50b when they are seated on the tray 60.

A holder 18 for firmly holding the cartridge 50 is installed on the rear side of the tray 60 so as to be reciprocated, and a pair of pressing portions 18a for pressing one surface of the cartridge 50 on both sides of the holder 18. ) Is integrally molded, and the compression spring 20 is connected to one end of the pressing unit 18a and the tray 60, respectively.

The tray 60 is mounted to be taken out and / or retractable with respect to the case 22, and a deck base 70 for loading / unloading an optical disc while being lifted up and down by a loading mechanism is provided inside the case 22. It is installed inclined at an angle. And, both sides of the deck base 70, the projecting piece 72 is integrally protruded, the upper surface is a part of the through hole (60a) and at the same time the position projection to be inserted into the horizontal retaining groove (50c) of the cartridge 50 74 is fixed.

A horizontal adjusting member is rotatably coupled to the protruding piece 72 so as to penetrate through the first and second through holes 60b and 60c so as to adjust the level of the cartridge 50. And a plurality of tilt cams 76 having an inclined surface 76b to be in contact with the insertion portion 76a for inserting a portion into the second horizontal holding grooves 50a and 50b and the surface of the cartridge 50.

The operation of the tilt adjustment structure of the cartridge according to the present invention configured as described above will be described in detail with reference to FIG.

When the cartridge 50, in which the optical disc D is stored, is inclined at a predetermined angle and seated on the tray 60 taken out of the front of the case 22, the pressing portion 18a formed in the holder 18 becomes a cartridge. The compression spring 20 is pushed backward by the entry force of the 50, and the seating projection 62 of the tray 60 is brought into close contact with the bottom surface of the tray 60. The mounting groove 50d is inserted into the pressing portion 18a by the restoring force of the compression spring 20 to pressurize one surface of the cartridge 50 to prevent microfluidic flow.

Thereafter, when the ejecting button mounted on the front of the case 22 is pressed again, the tray 60 is moved into the case 22 while the tray 60 is horizontally moved by the operation of the loading mechanism installed inside the case 22, and the cartridge ( The shutter 52 mounted on the 50 is pushed in one direction by the input of the tray 60 while being in contact with the shutter opening member to expose the magnetic part of the optical disk to the objective lens of the optical pickup apparatus.

When the tray 60 is completely inserted into the case 22, the deck base 70 is raised by a loading mechanism at a predetermined angle so that the non-magnetic portion of the optical disk is brought into close contact with the turntable 28, and the deck base ( 70) The position protrusion 74 fixed to the upper surface is inserted into the horizontal holding groove 50c of the cartridge 50 while being penetrated by the through groove 60a and coupled to the upper surface of the protruding piece 72 of the deck base 70. The tilt cams 76 are inserted into the first and second horizontal holding grooves 50a and 50b while penetrating through the first and second through holes 60b and 60c.

That is, the insertion portion 76a of the tilt cam 76 is inserted into the first and second horizontal holding grooves 50a and 50b of the cartridge 50, and the inclined surface 76b is the first and second horizontal holding grooves. The cartridge 50 may be in contact with one side of the bottom surface of the cartridge 50 on which the cartridges 50a and 50b are formed to manage the horizontality of the cartridge 50. In particular, when the optical disk is loaded, the cartridge 50 is inclined to rest on the tray 60. Can be prevented from coming into contact with the inner surface of the cartridge 50 and the optical disk surface.

If the surface of the optical disc comes into contact with the inner surface of the cartridge 50, when the tilt cams 76 mounted on the protruding pieces 72 are turned clockwise or counterclockwise, the inclined surface of the tilt cam 76 The tilt of the cartridge 50 inclined at a predetermined angle by 76b) can be easily adjusted.

As described above, according to the tilt adjustment structure of the cartridge for an optical disc recording / reproducing apparatus according to the present invention, the horizontal degree can be easily managed by adjusting the horizontality of the cartridge seated obliquely on the tray. In addition to preventing the optical disk surface from coming into contact with the inner surface of the cartridge, information can be accurately recorded / reproduced on the recording surface of the optical disk, and in particular, the optical disk recording / reproducing apparatus can be made thin.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (2)

A tray containing a tray to be ejected and retracted in a case, an optical disk mounted on the tray, and a deck base installed inside the case to load / unload the optical disk, and a deck base provided on the deck base. In the tilt adjustment structure of the cartridge for adjusting the level of the cartridge seated at an angle to First and second through holes are formed on the bottom surface of the tray, and first and second horizontal holding grooves are formed on the bottom of the cartridge so as to coincide with the centers of the first and second through holes. Protruding pieces protrude from both sides, and the protruding pieces are provided with horizontal adjusting members for adjusting the tilting of the cartridge, and the horizontal adjusting members are provided on the upper surfaces of the protruding pieces to be inserted into the first and second horizontal holding grooves. A tilt adjustment structure of a cartridge for an optical disc recording and reproducing apparatus, characterized by being rotatably coupled. The inclined surface of claim 1, wherein the horizontal adjustment member is in contact with the insertion part inserted into the first and second horizontal holding grooves of the cartridge and the surface of the cartridge while being penetrated through the first and second through holes of the tray. A tilt adjustment structure of a cartridge for an optical disc recording and reproducing apparatus, comprising a tilt cam having a tilt cam.

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