KR20040048201A - Loading apparatus for optical disk - Google Patents

Abstract

PURPOSE: A device for loading an optical disc is provided to reduce a manufacturing cost by reducing a number of parts with the use of a simple structure and reliably load a different type disc. CONSTITUTION: A main roller(110) receives or draws out the optical disc(15) by a driver. A small disc hanging post(140) makes a center of a small disc according to the center of a spindle(14b). A large disc hanging post(150) makes the center of a large disc according to the center of the spindle. A disc guide(170) installed at a position facing the main roller makes the disc advance to a direction for hanging to the small disc hanging post. A disc selector(130) is placed to a position for making the small disc not hung to the small disc hanging post, and is place to the position for being separated from the disc before an outer circumference of the disc reaches the small disc hanging post and being separated from the large disc after the outer circumference of the large disc passes the small disc hanging post.

Description

Optical disc loading device {LOADING APPARATUS FOR OPTICAL DISK}

The present invention relates to an optical disc loading apparatus, and more particularly, to an optical disc loading apparatus capable of loading optical discs of different sizes with a small number of components in an optical disc reproducing apparatus using a raw disc transfer method.

In general, optical disk loading apparatus is largely divided into a tray transfer method and a blade disk transfer method. The blade disk conveying method is also called slot loading method, which is a method of inserting a disk into a tray and transporting the disk by inserting it into a slot. Therefore, compared to the tray conveying method, it is difficult to center the inserted disk in the center of the spindle motor, especially in the case of an apparatus capable of loading heterogeneous disks.

Figures 1a to 6 show the configuration of a conventional optical disk loading apparatus, Figures 1a to 1b is a plan view sequentially showing the operation of the optical disk loading apparatus when inserting an 8cm disk, Figures 2a to 2d is an optical disk when 12cm disk is inserted 3 is a plan view sequentially illustrating the operation of the loading apparatus, FIG. 3 is a plan view of the first arm of FIG. 1A, FIG. 4 is a plan view of the second arm of FIG. 1A, FIG. 5 is a plan view of the intermediate lever, and FIG. 6 is a detector lever of FIG. And the top view of the sliding lever.

As shown in FIG. 1A, a conventional optical disc loading apparatus includes an optical disc driver main body 11 having a slot 18 formed therein for inserting an optical disc 15 thereon, and the optical disc 15 to the spindle motor 14. It consists of a lever link for mounting. The lever link is installed at the rear of the spindle motor 14 and the spindle motor 14 installed on the main body 11 and the first arm 20, the second arm 30 hinged to the main body 11 and And a detector lever 70 hinged to the main body 11 at a side of the spindle motor 14 and an intermediate lever hinged to the main body 11 at a rear of the detector lever 70. 40 and a sliding lever 50 slidably coupled to the main body 11 to convert the rotational movement of the intermediate lever 40 into a forward and backward linear motion, and the sliding lever 50 moves forward. It is configured to include a rack gear 60 is coupled to the main body so as to be able to move forward by the sliding lever 50 when.

3 is a plan view of the first arm of FIG. 1A.

The first arm 20 has a first arm main body 21 similar to a disc shape, and a hinge coupling portion 22 formed at the center of the first arm main body 21 so as to be hinged with the optical disk driver main body 11. And a first female disk contact protrusion 23 protruding from an upper surface of the main body 21 to support an outer circumferential surface of the optical disk 15 when the optical disk is inserted, and the main body to rotate in association with the second arm. The first arm second arm engaging projection 26 protruding from the upper surface of the 21, the first arm first locking groove 24 formed by the recessed outer peripheral surface of the main body 21, and the second locking groove ( 25).

4 is a plan view of the second arm of FIG. 1A.

The second arm 30 has a hinge portion 32 formed at the center of the second arm main body 31 so as to be hinged to the disc-shaped second arm main body 31 and the optical disk driver main body 11. And a second arm disk contact protrusion 33 formed to protrude on the upper surface of the main body 31 so as to support an outer circumferential surface of the optical disk 15 when the optical disk is inserted, and rotate in conjunction with the first arm 20. It is configured to include a second arm first arm coupling portion 36 is formed with a sliding groove 37 so as to slide in combination with the first arm second arm engaging projection 26 so as to.

Fig. 5 is a plan view of the intermediate lever of Fig. 1A.

The intermediate lever 40 includes an intermediate lever main body 41, a hinge coupling portion 42 for hinge coupling the intermediate lever main body 41 to the optical disc driver main body 11, and an outer circumferential surface of the optical disc 15. Main body 41 opposite to the intermediate lever disk contact protrusion 43 with the intermediate lever disk contact protrusion 43 formed to protrude on the upper surface of the main body 41 and the hinge coupling portion 42 therebetween. It is configured to include a cam projection (44) formed to protrude on the lower surface.

FIG. 6 is a plan view of the detector lever and the sliding lever of FIG.

The sliding lever 50 is coupled to the elastic member fixing portion 54 formed on the upper side so that the sliding lever restoring spring 19 is fixed, and the cam projection 44 of the intermediate lever 40, the intermediate lever 40. The sliding lever cam groove 51 and the sliding lever guide groove 52 to guide the sliding lever 50 to reciprocate in a straight line and the sliding lever cam groove 51 formed to implement a linear movement of the sliding lever 50 in conjunction with the rotational movement of the It is configured to include.

The detector lever 70 includes a “b” shaped detector lever body 71, a hinge coupler 72 for hinge coupling the detector lever body 71 to the optical disc driver body 11, and the optical disc. A detector lever disk contact protrusion 76 protruding from an upper end surface of the main body 71 so as to support an outer circumferential surface of the main body 71, and protruding from an upper end surface of the upper left end of the main body 71 so as to support the first arm locking groove 24 25 is protruded to the lower end of the detector lever body 71 to secure the detector lever locking protrusion 73 and the detector lever restoring spring 12 coupled to the first arm 20 to restrain the rotational movement of the first arm 20. It is configured to include a resilient elastic member fixing portion 74 formed.

The optical disk driver main body 11 has a first arm guide groove 17 for guiding the rotational movement of the first arm 20 and a second arm guide groove 16 for guiding the rotational movement of the second arm 60. ) And a sliding lever restoring spring 19 having one end fixed to the elastic member fixing part 54 of the sliding lever 50 and the other end of the restoring spring 19 protruded from the main body 11. The spring fixing protrusion 10 is formed, and the detector lever restoring spring fixing protrusion 13 to which the detector lever restoring spring 21 is further configured.

The operation of the conventional optical disc driver loading apparatus will be described below.

1A and 1B are plan views showing the operation of the optical disk loading apparatus sequentially when an 8 cm disk is inserted.

Since the locking protrusion 73 of the detector lever 70 is fitted into the first locking groove 24 of the first arm 20, the first arm 20 interlocks with the first arm 20. The rotating second arm 30 is fixed by the rotational movement is constrained.

The disc is inserted so that the disc contact protrusion 43 of the intermediate lever 40 is connected to the disc contact protrusion 23 of the first arm and the disc contact protrusion 33 of the first arm. Pushed until contact. The disk contact protrusion 23 of the first arm and the disk contact protrusion 33 of the second arm are positioned so that the center of the 8 cm disk coincides with the center of the spindle motor 14. When the disk 15 pushes the disk contact protrusion 43 of the intermediate lever 40, the intermediate lever 40 rotates clockwise about the intermediate lever hinge coupling part 42. The sliding lever 50 is moved downward by the action of the cam protrusion 44, the cam groove 51, and the guide groove 50, so that the rack gear contact portion 53 is the rack gear 60. Will be pushed down. As the rack gear 60 installed on the loading cam (not shown) moves downward, power of a motor is transmitted through the loading cam (not shown) and the reduction gear (not shown), and a clamping unit (not shown). ) Chucks the disk to the spindle motor to complete the disk loading.

2A to 2D are plan views sequentially showing the operation of the optical disc loading apparatus when a 12 cm disc is inserted.

When the 12 cm disk 15 is inserted, first, the disk contact protrusion 76 of the detector lever is pushed so that the detector lever 70 moves in a counterclockwise direction so that the locking protrusion 73 moves to the first locking groove. Departure from (24). When the disk 15 is continuously inserted to push the disk contact protrusion 23 of the first arm and the disk contact protrusion 33 of the second arm, the first arm 20 is counterclockwise. The second arm 30 is rotated in the clockwise direction.

When the disk 15 is further inserted, the detector lever 70 rotates clockwise again so that the locking protrusion 73 is coupled to the second locking groove 25, and the disk 15 is The disc contact protrusion 43 of the intermediate lever 40 is pushed, and the intermediate lever 40 rotates clockwise around the intermediate lever hinge coupling portion 42 and the cam protrusion 44. The sliding lever 50 is moved downward by the action of the cam groove 51 and the guide groove 50 so that the rack gear contact portion 53 pushes the rack gear 60 downward. As the rack gear 60 installed on the loading cam (not shown) moves downward, power of a motor is transmitted through the loading cam (not shown) and the reduction gear (not shown), and a clamping unit (not shown). ) Chucks the disk to the spindle motor to complete the disk loading.

However, the conventional optical disc loading apparatus is composed of a plurality of complicated parts for loading discs of different sizes as described above. Therefore, there is a problem that it becomes a factor of increase in manufacturing cost and a cause of lowering the reliability of the operation.

Disclosure of Invention The present invention has been made to solve the above problems, and its object is to provide a device for loading an optical disk drive that can reduce the number of parts by using a simple structure and reduce manufacturing costs, and can reliably load heterogeneous disks. .

1A to 6 show a configuration of a conventional optical disc loading apparatus,

1A to 1B are plan views showing the operation of the optical disk loading apparatus sequentially when an 8 cm disk is inserted;

Figures 2a to 2d is a plan view showing the operation of the optical disk loading device in sequence when the 12cm disk is inserted

3 is a plan view of the first arm of FIG. 1A

FIG. 4 is a plan view of the second arm of FIG. 1A

5 is a plan view of the intermediate lever

Figure 6 is a plan view of the detector lever and the sliding lever of Figure 1a

7 to 12 show the structure of an embodiment of the present invention.

Fig. 7 is a plan view showing the positions of the small optical discs inserted into the optical disc player in each operation;

FIG. 8A is a side view when the optical disk of FIG. 7 is in the position 1; FIG.

FIG. 8B is a side view when the optical disc of FIG. 7 is in the position 2;

FIG. 8C is a side view when the optical disk of FIG. 7 is in the position 3

FIG. 8D is a side view when the optical disc of FIG. 7 is in the position 4

FIG. 8E is a side view when the optical disk of FIG. 7 is in the position of FIG.

Fig. 9 is a plan view showing the position of a large optical disc inserted into an optical disc player in each operation;

FIG. 10A is a side view when the optical disk of FIG. 9 is in the position 1; FIG.

FIG. 10B is a side view when the optical disk of FIG. 9 is in the position 2; FIG.

FIG. 10C is a side view when the optical disk of FIG. 9 is in the position 3

FIG. 10D is a side view when the optical disk of FIG. 9 is in the position 4

Figure 11 is a perspective view of the disk guide of Figure 7

Fig. 12 is a cross sectional view taken along the line II-XII of Fig. 11;

Figure 13 shows another embodiment of the auxiliary roller of the present invention, a front view of the auxiliary roller

** Description of the symbols for the main parts of the drawings **

11: mainframe 14b: spindle

110: main roller 120: roller frame

120a: main roller arm 120b: secondary roller arm

130, 230: disc selection member, auxiliary roller

140: Small disk jam post

150: large disk jammed portion 170: disk guide

171, 172: contact protrusion

The present invention is a main roller which is driven by a drive device for introducing or withdrawing an optical disk in order to achieve the object as described above; A small disk locking post for matching the center of the small disk to the center of the spindle; A large disk engaging portion for matching the center of the large disk to the center of the spindle; A disc guide installed at a position opposite to the main roller, the disc guide being formed so as to travel in a direction in which the disc installed between the main roller and the small disc locking post is caught; When the optical disk is brought into contact with the main roller at the same time, the optical disk is installed at a position where the optical disk proceeds in a direction not to be caught by the small disk locking post, and before the outer circumference of the small disk reaches the small disk locking post, A disk selection member which is separated and installed at a position at which the outer periphery of the large disk passes the small disk locking post and is separated from the large disk; It provides an optical disk loading device configured to include.

In addition, the disk selection member is preferably an auxiliary roller formed to be in contact with the optical disk surface while rotating.

The optical disc loading device is hinged to the main frame of the optical disc drive so as to be rotatable, and a main roller arm hinged to the rotation center of the main roller at the end thereof, and may block a disc inlet when the main roller is spaced apart from the optical disc. It is effective to further include a roller frame formed so as to be bent at the other end of the main roller arm and having an auxiliary roller arm is installed at the end of the auxiliary roller.

In addition, the auxiliary roller is preferably formed in an elongate shape so as to contact only the outer peripheral surface of the optical disk.

In addition, the auxiliary roller is effective in that the surface is made of molten to wipe the surface of the optical disk during the insertion or withdrawal of the optical disk.

In addition, the disk guide is preferably configured to include two disk contact projections formed long in the vertical direction of the optical disk.

In addition, the disk contact projections are effective in that the two heights are formed different from each other in order to increase the reliability of the operation of the optical disk inserted into the small disk locking post.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, in describing the present invention, a detailed description of known functions or configurations will be omitted in order not to disturb the gist of the present invention.

In addition, the same reference numerals are given to the same and the same components as those described above, and detailed description thereof will be omitted.

7 to 12 show the structure of one embodiment of the present invention. FIG. 7 is a plan view showing the position of a small optical disc inserted into an optical disc reproducing apparatus for each operation. FIG. 8A shows the optical disc of FIG. 8B is a side view when the optical disc of FIG. 7 is in the position 2, FIG. 8C is a side view when the optical disc of FIG. 7 is in the position 3, FIG. 8D is a side view of the optical disc of FIG. Fig. 8E is a side view when the optical disc of Fig. 7 is in the position 5, Fig. 9 is a plan view showing the position of a large optical disc inserted into the optical disc reproducing apparatus for each operation, and Fig. 10A is Fig. 9 Fig. 10B is a side view when the optical disc in Fig. 9 is in the position 2, Fig. 10C is a side view when the optical disc in Fig. 9 is in the position 3, Fig. 10D is Fig. 9 Fig. 11 is a side view when the optical disc in the position 4 is shown. Perspective view of the disc guide 12 is a sectional view taken along line ⅩⅡ ⅩⅡ-cut in Fig.

As shown in the drawings, the optical disk loading apparatus of an embodiment of the present invention is driven by a drive device to the main roller 110 for drawing in or out of the optical disk 15, the center of the small disk of the spindle 14b Small disk locking post 140 to match the center, the large disk locking portion 150 to match the center of the large disk to the center of the spindle 14b, and the position opposite to the main roller 110 A disk guide 170 installed in the main roller 110 and interposed between the main roller 110 and the small disk locking post 140, and the main roller in the inserted optical disk 15. When the optical disk 15 is in contact with the 110 at the same time, the optical disk 15 is installed at a position that proceeds in a direction not to be caught by the small disk locking post 140, and the outer circumference of the small disk 15 is connected to the small disk hook. The disk selection member 130 which is separated from the small disk 15 before reaching the rim post 140 and installed at a position separated from the large disk after the outer circumference of the large disk has passed the small disk locking post 140. It is configured to include).

The disk selecting member 130 is an auxiliary roller 130 formed to be in contact with the optical disk surface 15 while rotating. The auxiliary roller 130 is formed of a cylindrical roller, the surface is made of a melt (융) to wipe the optical disk surface during the insertion or withdrawal of the optical disk 15.

In addition, the main roller 110 and the auxiliary roller 130 are coupled to both ends of the roller frame 120 hinged to be rotatable to the main frame 11 of the optical disk drive. The roller frame 120 has a main roller arm (120a) hinged to the main roller 110, a secondary roller arm (120b) hinged to the auxiliary roller 130, a hinge coupled to the main frame It is comprised including the protrusion 120c. The auxiliary roller arm 120b is formed by a separate main roller cam device (not shown) so as to block the disk entrance and exit when the main roller 110 is spaced apart from the optical disk. In addition, as shown in FIG. 10B, when the optical disc 15 is in contact with the main roller 110 and the auxiliary roller 130 at the same time, the roller frame 120 has the optical disc 15 at the small disk locking post. The main roller arm 120a and the auxiliary roller arm 120b are formed to travel in a direction that is not caught.

In addition, a spring 180 having one end fixed to the roller frame 120 and the other end fixed to the main frame 11 so that the main roller 110 is in close contact with the disc guide 170. It is configured to further include.

The disk guide 170 is composed of two protrusions 171, 172 in the direction facing the main roller 110. As shown in Fig. 11, the protrusions 171 and 172 are formed such that their height h1 is lower than h2. This is to allow the disk to be stably caught in the small disk locking post 140 as shown in FIG. 8C when the disk is inserted between the protrusions 171 and 172 and the main roller 110. However, the heights of the protrusions 171 and 172 may be achieved so that the disk may be caught by the small disk locking post 140 when the main roller 110 is in contact with the disk between the main rollers 110 at the same time. Can be. In addition, the protrusions 171 and 172 of the disc guide 170 are formed in the elongated shape in the Y direction in FIG. 11, as shown in FIGS. This is to allow only the outer circumferential surface of the disk to correspond to the main roller 110 formed in an elongated shape.

Hereinafter, the operation of one embodiment of the present invention will be described.

Fig. 7 is a plan view showing the position of the small optical disc inserted into the optical disc reproducing apparatus for each operation, Fig. 8A is a side view when the optical disc of Fig. 7 is in position 1, and 8b is a position where the optical disc of Fig. 7 is in position 2; 8C is a side view when the optical disc of FIG. 7 is in the position 3, FIG. 8D is a side view when the optical disc of FIG. 7 is in the position 4, and FIG. 8E is a position view of the optical disc of FIG. It is a side view when there is.

When the user inserts the small optical disk, the main roller 110 is driven by the optical disk insertion detecting device (not shown) provided at the entrance of the optical disk player, and when the optical disk 15 reaches the main roller 110, The optical disk 15 is inserted by the main roller 110. As shown in FIG. 8B, when the optical disc 15 comes into contact with the main roller 110, the auxiliary roller 130, and the disc guide 170 at the same time, the advancing direction of the optical disc 15 is the small disc locking post 140. Proceed in the direction not to catch).

When the optical disc 15 proceeds and passes all the auxiliary rollers 130 as shown in FIG. 8C, the path of the optical disc 15 is determined only by the disc guide 170 and the main roller 110. That is, since the disk 15 is located between the contact protrusions 171 and 172 of the disk guide 170 and the main roller 110, the disk 15 proceeds in the direction to be caught by the small disk locking post 140. .

As shown in Fig. 8D, the small optical disk 15 continues to be caught by the small disk locking post 140 so that its center coincides with the center of the spindle.

As shown in FIG. 8E, the main roller is moved downward by the main roller cam device (not shown) so that the disk 15 is seated on the spindle. In addition, since the main roller moves downward, the auxiliary roller arm 120b closes the inlet of the disk, thereby preventing the redundant insertion of the disk.

Fig. 9 is a plan view showing the position of a large optical disc inserted into the optical disc reproducing apparatus for each operation, Fig. 10A is a side view when the optical disc of Fig. 9 is in position 1, and 10b is a position where the optical disc of Fig. 9 is in position 2, respectively. 10C is a side view when the optical disc of FIG. 9 is in position 3, FIG. 10D is a side view when the optical disc of FIG. 9 is in position 4, and FIG. 10E is a position view of the optical disc of FIG. It is a side view when there is.

When the user inserts a large optical disc, the main roller 110 is driven by an optical disc insertion detecting device (not shown) provided at the entrance of the optical disc reproducing apparatus, and when the optical disc 15 reaches the main roller 110, The optical disk 15 is inserted by the main roller 110. As shown in FIG. 10B, when the optical disc 15 comes into contact with the main roller 110, the auxiliary roller 130, and the disc guide 170 at the same time, the advancing direction of the optical disc 15 is the small disc locking post 140. Proceed in the direction not to catch).

The optical disk 15 continues to pass without being caught by the small disk locking post 140 as shown in FIG. 10B, and is caught by the large disk locking unit 150 as shown in FIG. 10C so that the center thereof is the center of the spindle. To match.

As shown in Figure 10d, the main roller 150 is moved downward by the main roller cam device (not shown) so that the disk 15 is seated on the spindle.

The main roller cam device (not shown) as described above can be configured in a variety of structures already known.

As described above, the present invention has a simple structure and can distinguish and mount different sized discs to be inserted into the optical disc reproducing apparatus, thereby reducing manufacturing costs and simplifying the operation to increase the reliability of the operation. .

In addition, there is an advantage that the material of the auxiliary roller is made of molten to remove the contaminants on the surface of the optical disk.

Figure 13 shows another embodiment of the auxiliary roller of the present invention, which is a front view of the auxiliary roller.

The auxiliary roller 220 is coupled so that the rotation shaft 221 is rotatable to the roller frame 120, the shape is a long shape.

Therefore, when contacted with the optical disk 15, only the outer end of the optical disk 15 is in contact, there is an advantage that the defects that may occur on the data recording surface of the optical disk 15 can be minimized.

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope described in the claims.

According to the embodiment of the present invention as described above it can be expected a variety of effects including the following matters. However, the present invention is not achieved by exerting all of the following effects.

First of all, the present invention has a simple structure and can distinguish and mount different sizes of discs to be inserted into an optical disc reproducing apparatus, thereby reducing manufacturing costs.

And, by simplifying the structure, it is possible to significantly reduce the noise that may be caused by the operation of the mechanism during disc loading.

In addition, the operation of loading the disk is simple, which can increase the reliability of the operation.

In addition, there is an advantage that the material of the auxiliary roller is made of molten to remove the contaminants on the surface of the optical disk.

In addition, the auxiliary roller is formed in an elongated shape so as to contact only the outer end of the optical disk, as a result, there is an advantage that the defects that may occur on the data recording surface of the optical disk can be minimized.

Claims (7)

A main roller which is driven by the driving device to draw in or take out the optical disk; A small disk locking post for matching the center of the small disk to the center of the spindle; A large disk engaging portion for matching the center of the large disk to the center of the spindle; A disc guide installed at a position opposite to the main roller, the disc guide being formed so as to travel in a direction in which the disc installed between the main roller and the small disc locking post is caught; When the optical disk is brought into contact with the main roller at the same time, the optical disk is installed at a position where the optical disk proceeds in a direction not to be caught by the small disk locking post, and before the outer circumference of the small disk reaches the small disk locking post, A disk selection member which is separated and installed at a position at which the outer periphery of the large disk passes the small disk locking post and is separated from the large disk; Optical disk loading device, characterized in that configured to include. The method of claim 1, wherein the disk selection member An optical disk loading apparatus, characterized in that the auxiliary roller formed to be in contact with the optical disk surface while rotating. The method of claim 2, Hingedly rotatable to the mainframe of the optical disc drive, The main roller arm hinged to the rotation center of the main roller at the end and the auxiliary roller is bent at the other end of the main roller arm so as to block the disc inlet when the main roller is spaced apart from the optical disk and the auxiliary roller is installed at the end Roller frame with roll arm Optical disk drive loading device, characterized in that further comprises. The method of claim 2 or 3, wherein the auxiliary roller An optical disc drive loading apparatus, characterized in that it is formed in an elongate shape so as to contact only an outer circumferential surface of the optical disc. The method of claim 2 or 3, wherein the auxiliary roller An optical disk drive loading device, characterized in that the surface is made of molten to wipe the optical disk surface during the insertion or withdrawal of the optical disk. The method of claim 1, wherein the disk guide Two disk contact protrusions formed to be perpendicular to the advancing direction of the optical disk; Optical disk drive loading device, characterized in that configured to include. The disk contact protrusion of claim 6, wherein the disc contact protrusion is formed. The optical disk drive loading apparatus, characterized in that the two heights are formed differently to increase the reliability of the operation that the inserted optical disk is caught on the small disk locking post.