KR19990047076A - Optical disc recorder - Google Patents

Abstract

The present invention relates to an optical disk recording and reproducing apparatus, wherein first and second insertion holes and guide holes spaced apart by a predetermined distance are formed on the bottom surface of the tray before and after the tray, and the holder moving forward and backward on the rear side of the tray. The holder and the first insertion hole are equipped with first and second optical disk locking means for locking an optical disk having a diameter of 12 cm or 8 cm seated on a tray when the case is installed vertically. And the first and second locking release means are fixed to the deck base so that the second optical disc locking means can be released. Therefore, one tray is used for the horizontal and / or vertical optical disc recording / reproducing apparatus, thereby improving compatibility. In a size reduction it can be a cost-effective, in accordance with the selective mounting Sikkim by another optical disc.

Description

Optical disc recorder

The present invention relates to an optical disc recording and reproducing apparatus, and more particularly, to selectively mount an optical disc having a different size on a tray to be taken out and / or retracted with respect to a case installed in a vertical type. The present invention relates to an optical disk recording / reproducing apparatus capable of preventing the optical disk from being detached during movement.

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 or reproducing the recorded information in a spiral or concentric track. A conventional optical disc recording apparatus having a tray for seating such an optical disc has a tray 12 which is taken out and / or retracted from the case 10 as shown in FIGS. 1 and 2. (12) A mounting groove 12a is formed in the upper surface to seat the optical disk, and an opening 12b is formed in the bottom surface to expose the nonmagnetic and magnetic portions of the optical disk to the outside.

Inside the case 10, a deck base having a turntable is installed to be in contact with the lower surface of the non-magnetic portion of the optical disk while being raised at a predetermined angle by a loading mechanism (not shown), and the deck base has a radial direction above the optical disk. An optical pickup device (not shown) is installed on the surface of the optical disc to transfer the recorded data or to reproduce the stored recording.

In the conventional tray configured as described above, when the ejecting button (not shown) provided on the front of the case 10 is pressed in order to record and / or reproduce information on the recording surface of the optical disk, the tray 12 is rotated by the rotation of the drive mechanism. Is taken out while horizontally moving forward of the case 10, and the optical disc is seated on the taken out tray 12. As shown in FIG. At this time, the optical disk is seated in the mounting groove 12a formed in the tray 12 to prevent the microfluidic flow and at the same time the magnetic portion is exposed to the opening 12b.

Then, when the ejecting button is pressed again, the driving mechanism is rotated to draw the tray 12 into the case 10, and when the drawing is completed, the loading mechanism installed inside the case 10, that is, the nonmagnetic portion of the optical disk, is pressed. The information is recorded and / or reproduced on the recording surface of the optical disc by a deck base having a turntable and an optical pickup device that is linearly reciprocated so that the contact is closely performed.

However, although the optical disc is placed on a tray to be taken out and / or retracted while moving horizontally with respect to the horizontally installed case as described above, records stored therein are reproduced, but optical discs having different sizes, for example, 8 cm or In order to mount an optical disk having a diameter of 12 cm, each tray has to be provided with a suitable tray, which has a disadvantage in that the cost is increased.

In addition, when the optical disc recording and reproducing apparatus is used in a vertical position, an additional locking means must be provided to prevent the optical disc from being detached during the movement of the tray and to prevent the optical disc from being detached. Another problem is that the tray can not be used in combination with the optical disc recording and reproducing apparatus whose vertical position is changed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to prevent the detachment of the optical disk seated on the tray when the optical disk recording and reproducing apparatus is used in a vertical position. Provides an optical disc recording and reproducing apparatus that can be economically saved by using a single tray for an optical disc recording and reproducing apparatus of a type, and in particular, by selectively placing optical discs of different sizes on the tray. It is.

1 is a plan view schematically showing an optical disc seating tray according to the prior art;

2 is a cross-sectional view A-A of the optical disk seating tray shown in FIG. 1;

3 is an exploded perspective view showing an optical disk recording and reproducing apparatus having an optical disk seating tray having a different size according to the present invention;

4 is a plan view showing an engaged state of the disc seating tray according to the present invention;

5 is a cross-sectional view showing a state where an optical disk having a diameter of 12 cm is seated on a tray in the optical disk recording and reproducing apparatus of FIG. 4;

6 is an enlarged cross-sectional view of the main portion of the optical disk recording / reproducing apparatus shown in FIG. 5;

FIG. 7 is a cross-sectional view showing a state where an optical disk having a diameter of 8 cm is seated on a tray in the optical disk recording / reproducing apparatus of FIG.

Explanation of symbols on the main parts of the drawings

10 case 30 tray

30a, 30b: first and second seating grooves 30c: openings

30d, 30e: 1st and 2nd insertion hole 30f: Guide hole

32: guide portion 34: holder

34a: Guide Bar 34b: Restriction Groove

36: compression spring 38: jamming projection

40,50,60: 1st, 2nd and 3rd locking part 42: Locking piece

42a: stepped portion 52,62: first and second levers

52a: locking groove 54: leaf spring

56: locking projection 64: return spring

70: deck base 72,74: unlocking projection

D: 12cm optical disc D ': 8cm optical disc

A feature of the present invention for achieving the above object is that a loading mechanism and a deck base for recording or reproducing information on an optical disk are installed in the case, and the case is detachably mounted on the case. In the optical disk recording and reproducing apparatus provided with a tray to selectively seat the optical disk having a different size, the first and second insertion hole and the guide hole spaced by a predetermined distance are formed on the bottom surface before and after the tray A holder mounted on a rear side of the tray and moving forward and backward along the guide hole; First optical disk locking means mounted to the holder and the first insertion hole to lock an optical disk having a diameter of 12 cm seated on the tray when the case is installed vertically; Second optical disk locking means mounted to the second insertion hole to lock an optical disk having a diameter of 8 cm seated on the tray; First locking release means fixed to the deck base to enable release of the first optical disc locking means; The second locking release means is fixed to be spaced apart from the first locking release means at a predetermined distance to release the second optical disc locking means.

The first optical disk locking means according to the preferred embodiment of the present invention is inserted into the insertion hole so as to be spaced apart at an obtuse angle from the first locking portion and the first locking portion rotatably hinged at a predetermined angle from the upper surface of the holder. It is achieved by being provided with a second locking portion that is hinged.

The second optical disc locking means according to a preferred embodiment of the present invention is achieved by being a third locking portion which is spaced apart from the second locking portion at a predetermined distance and locks the optical disc in two places.

A first locking release means according to a preferred embodiment of the present invention is inserted into the first insertion hole of the tray so that the first optical disk locking means can be separated from the optical disk on the upper surface of the deck base. By a pair of fixed first unlocking projections.

The second locking release means according to a preferred embodiment of the present invention is achieved by a second locking release protrusion for releasing the second optical disc locking means while a portion is inserted into the second insertion hole when the deck base is raised. .

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of an optical disc recording and reproducing apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

3 and 4 illustrate an optical disk recording / reproducing apparatus according to the present invention, in which case a tray 30 is mounted to be pulled out and / or retracted therefrom, and a bottom surface of the tray 30 is shown. The first mounting groove 30a and the second mounting groove 30b for seating the optical disk D 'of 8 cm are respectively formed to seat the optical disk D having a diameter of 12 cm, respectively. The opening 30c communicates with the second seating grooves 30a and 30b to expose the magnetic portions of the optical disks D and D 'to the outside.

A first insertion hole 30d and a second insertion hole 30e and a guide hole 30f are formed on the front and rear bottom surfaces of the tray 30, respectively, and on the upper side of the tray 30f, a tray ( The guide part 32 is integrally injection molded so as to have a predetermined height with respect to the bottom surface of the 30.

A holder 34 having a guide bar 34a is mounted on the upper surface of the guide part 32 so that both ends are inserted into the guide hole 30f so as to be movable forward and backward, and at one end of the guide bar 34a. A compression spring 36 is connected to return 34 to the initial position.

The holder 34 and the first insertion hole 30d of the tray 30 prevent the separation of the optical disc D having a diameter of 12 cm seated on the tray 30 when the case 10 is installed vertically. A first optical disk locking means is provided, and the second insertion hole 30e is provided with a second optical disk locking means for preventing separation of the optical disk D 'having a diameter of 8 cm.

The first optical disk locking means includes a first locking part hinged to rotate at a predetermined angle in the left and right directions on the upper surface of the holder 34 so as to lock the 12 cm optical disk D at three locations. 40 and a second locking portion 50 rotatably hinged in the first insertion hole 30d, respectively, and the second optical disc locking means is spaced apart from the second locking portion 50 by a predetermined distance. It is provided with a third locking portion 60 hinged to correspond to each other in the two insertion hole (30e) to lock the optical disk (D ') of 8cm in two places.

The first locking portion 40 is a locking piece 42 that rotates in the rotation limiting groove 34b formed on the upper surface of the holder 34, and the tip of the locking piece 42 rotates when the optical disk D rotates. In order to prevent the lower surface of the locking piece 42 and the surface of the optical disk D from contacting each other, the stepped portion 42a is preferably formed such that a predetermined gap is formed between the optical disk D and the locking piece 42. .

The second locking portion 50 includes a first lever 52 inserted into the first insertion hole 30d of the tray 30 and a leaf spring 54 for returning the first lever 52 to an initial position. A locking protrusion 56 protruding from one end of the first lever 52 and formed in a direction opposite to the locking protrusion 56 and the locking protrusion 56 to lock the optical disc D of 12 cm, and protruding from the tray 30. ) Is made of a locking groove (52a) is fitted.

In addition, one end of the third locking part 60 is connected to the bottom of the second lever 62, the second lever 62, and the tray 30, which are hinged to the second insertion hole 30e, respectively. 62 is provided as a return spring 64 for returning the initial position to the initial position, and the second lever 62 is provided so that no interference occurs when the 12 cm optical disk D mounted on the tray 30 is loaded. It is preferable to be coupled to the same surface as the bottom surface of the seating groove (30b).

On the other hand, at least any one of the optical disk (D) (D ') having a size of 12cm or 8cm into the case 10 in the database 70 installed inside the case 10 to load the optical disk (D). First and second locking release means are provided for releasing the first and second optical disc locking means when the tray 30 on which the optical disc is seated is fully retracted.

The first locking release means is inserted into the first insertion hole (30d) of the tray 30 during the operation of the loading mechanism while the locking projection 56 of the first lever 52 against the 12 cm optical disk (D) The first locking release protrusion 72 is fixed to the upper surface of the deck base 70 so as to be separated, and the second locking release means is fixed to be spaced apart from the first locking release protrusion 72 by a predetermined distance. A portion of which is inserted into the second insertion hole 30e at the time of the rise of 70 results in a second locking release protrusion 74 that separates the second lever 62 that locks the optical disk D 'of 8 cm.

Here, the length of the second unlocking projection 74 is set so that one end of the second lever 62 does not touch the surface of the optical disk D when the 12 cm optical disk D is seated on the tray 30. It is preferable to make it shorter than the length of the one unlocking protrusion 72.

The operation of the optical disk recording and reproducing apparatus according to the present invention configured as described above will be described in detail with reference to FIGS. In the present invention will be described the operation when using the case installed vertically (vertical) the loading mechanism and the deck base.

When the ejecting button of the case 10 is placed vertically to store the recording on the optical disks of different sizes or to reproduce the recorded information, the tray 30 is moved forward of the case 10 by the rotation of the drive mechanism. Is taken out.

Thereafter, the optical disk D having a diameter of 12 cm is seated on the upper surface of the first seating groove 30a of the taken out tray 30. That is, when the locking piece 42 of the first locking part 40 and the first lever 52 of the pair of second locking parts 50 are artificially manipulated, respectively, the locking piece 42 is the holder 34. The first lever 52 hinged to the first insertion hole 30d while the tip thereof protrudes toward the front of the holder 34 while being rotated about the hinge in the rotation restriction groove 34b formed in the upper surface of the tray It is inclined at a predetermined angle with respect to the bottom surface of the (30).

After operating the locking piece 42 and the first lever 52 in this manner, and pressing the holder 34 mounted on the upper surface of the guide portion 32, the guide bar 34a inserted into the guide hole 30f and the As the connected compression spring 38 is compressed, the holder 34 is pushed backward. In this state, the optical disk D having a diameter of 12 cm is seated on the first seating groove 30a of the tray 30, and a part of the optical disk D is positioned below the locking protrusion 56. .

Then, when the force applied is removed, the holder 34 is moved forward by the restoring force of the compression spring 36, and at the same time, the front end of the locking piece 42 protruding toward the front of the holder 34 is stepped by the stepped portion 42a. The first lever 52 is positioned on the surface of the optical disk D while forming a predetermined gap, and the first lever 52 is locked so that the locking projection 38 of the first insertion hole 30d is caught by the locking groove 52a. Press Then, the locking projection 56 is positioned on the upper surface of the optical disk D while the leaf spring 54 attached to the lower surface of the first lever 52 is bent, so that the 12 cm optical disk D is first and second. Locking in three places by the second locking portions 40 and 50 and the locking piece 42 can prevent the optical disk D from being separated when the tray 30 is drawn into the case 10. It is.

In addition, when the tray 30 is drawn into the case 10, the deck base 70 for loading the optical disk D is lifted by the loading mechanism, and at the same time, the deck base 70 is fixed to the upper surface of the deck base 70. Portions of the first and second locking release protrusions 72 and 74 are inserted into the first and second insertion holes 30d and 30e, respectively, to push the first lever 52 and the second lever 62, respectively. As a result, the locking of the optical disc D is released to smoothly rotate at high speed without the interference of the locking projection 56.

That is, when the second lever 62 is pushed by the second locking release protrusion 74 as the second lever 62 is mounted on the same surface as the bottom surface of the second seating groove 30b, one end of the second lever 62 is firstly pushed. The height difference of the second seating groove 30b with respect to the seating groove 30a does not come into contact with the surface of the optical disk D of 12 cm.

Meanwhile, when the ejecting button is pressed again to remove the 12 cm optical disk D seated in the first seating groove 30a of the tray 30 or replace it with an optical disk D 'having a diameter of 8 cm, The disk D is taken out in front of the case 10 along the tray 30 in the unlocked state. At this time, the optical disk (D) is in a state of being locked to the locking piece 42 and the locking projection 56, respectively, so that the optical disk (D) can be easily taken out.

When the 8 cm optical disk D 'replaced on the second seating groove 30a of the tray 30 is seated, the optical disk D' is seated while the second lever 62 is artificially pulled out. As a result, the optical disk D 'is locked by the restoring force of the return spring 64 respectively connected to the second lever 62 and the bottom surface of the tray 30.

Thereafter, when the tray 30 is introduced into the case 10 as described above, a portion of the second locking release protrusion 74 fixed to the upper surface of the deck base 70 as the deck base 70 is raised may be a second insertion hole ( 30e) to rotate the optical disk D as the second lever 62 is separated from the surface of the optical disk D '.

In addition, when the tray 30 is taken out, the second locking release protrusion 74 is released from the second insertion hole 30e as the deck base 70 descends, and at the same time, the light is restored by the restoring force of the return spring 64. The disk D 'is taken out in the locked state again.

As described above, according to the optical disk recording and reproducing apparatus according to the present invention, when the optical disk recording and reproducing apparatus is used vertically, it is possible to prevent the detachment of the optical disk seated on the tray. One tray is used in the optical disc recording and reproducing apparatus to improve compatibility, and in particular, by selectively seating optical discs of different sizes on the tray, it is possible to reduce economic costs.

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 (10)

The case is provided with a loading mechanism and a deck base for recording or reproducing information on the optical disc, and the case is mounted to be taken out and / or retractable therein so as to selectively mount the optical disc of different sizes. An optical disc recording and reproducing apparatus provided with a tray, First and second insertion holes and guide holes spaced apart from each other by a predetermined distance on the bottom surface of the tray before and behind the tray, and are mounted to the rear side of the tray and move forward and backward along the guide hole; First optical disk locking means mounted to the holder and the first insertion hole to lock an optical disk having a diameter of 12 cm seated on the tray when the case is installed vertically; Second optical disk locking means mounted to the second insertion hole to lock an optical disk having a diameter of 8 cm seated on the tray; First locking release means fixed to the deck base to enable release of the first optical disc locking means; And second locking release means for fixing the second optical disc locking means to be spaced apart from the first locking release means at a predetermined distance. 2. The first optical disc locking means of claim 1, wherein the first optical disc locking means is hinged in the insertion hole so as to be spaced apart at an obtuse angle from the first locking portion rotatably hinged at a predetermined angle on the upper surface of the holder. And a second locking portion coupled thereto. 2. The optical disc recording and reproducing apparatus according to claim 1, wherein the second optical disc locking means is a third locking portion which is spaced apart from the second locking portion at a predetermined distance and locks the optical disc at two positions. . The upper surface of the deck base according to claim 1, wherein the first locking release means is inserted into a first insertion hole of the tray to allow the first optical disk locking means to be detached from the optical disk. And a pair of first locking release projections. The optical lock according to claim 1, wherein the second locking release means comprises a second locking release protrusion for releasing the second optical disc locking means while a part is inserted into the second insertion hole when the deck base is raised. Disc recorder. 3. The optical disc recording and reproducing apparatus according to claim 2, wherein the first locking portion is formed with a locking piece formed on the upper surface of the holder, and which rotates within the rotation limiting groove. The locking protrusion and the locking protrusion of claim 2, wherein the second locking portion protrudes from a first lever hinged to the first insertion hole of the tray and one end of the first lever to lock the optical disc of 12 cm. It is formed in the opposite direction of the, is provided with a locking groove for the engaging projection protruding in the inner direction of the first insertion hole and attached to the lower surface of the first lever is provided with a leaf spring for returning the first lever to the initial position An optical disc recording and reproducing apparatus, characterized in that. According to claim 3, wherein the third locking portion has a second lever hinged to the third insertion hole of the tray and one end is connected to the bottom surface of the second lever and the tray, respectively, to return the second lever to the initial position An optical disc recording and reproducing apparatus, characterized by comprising a return spring. 6. The method of claim 5, wherein the length of the second unlocking projection is such that the end of the first unlocking projection does not touch the surface of the optical disk when the optical disk having a diameter of 12 cm is placed on the tray. An optical disc recording and reproducing apparatus, characterized in that it is shorter than the length. The method of claim 8, wherein the second lever is hinged to the same surface as the bottom surface of the second seating groove formed in the tray in order to prevent interference when the optical disk of 12cm seated on the tray is loaded. An optical disc recording and reproducing apparatus.