KR20080076467A - Disk driving system of slot-in type - Google Patents

Abstract

A slot-in type drive device is provided to increase reliability by transferring a disc smoothly while preventing damage of the disc fundamentally during disc loading/unloading processes. Two guide rollers(57) are installed to a lower face of a disc guide(36) to guide an upper face of a disc(D) between a slot(34) and a transfer roller(38). Two guide rollers are inclined to the center of a lengthwise direction of the disc guide. A guide groove(40a) for guiding a shaft of the transfer roller is formed in a position moving member(40) and the transfer roller is supported by the shaft hung to both ends of the guide groove. The disc guide presses the disc by hinging one end and pulling both widthwise sides of another end to a lower side with a tensile spring(58) connected to a lower part of a case. A supporting guide member(66) includes a first supporter for preventing excessive sinking of the disc guide at one end of a clamp(46) and a second supporter for preventing excessive lift of the disc at another end of the clamp.

Description

Slot drive type drive device {disk driving system of slot-in type}

1 is a block diagram showing a conventional type drive apparatus that is a slot;

2 is a view showing a state in which a disk is loaded in the conventional slot type drive apparatus;

Fig. 3 is a longitudinal side view at the projection of the disc guide of the conventional type drive apparatus;

4 is a block diagram showing a slot type drive device according to the present invention;

5A to 5C are views showing a state in which a disk is being transferred and a loading completed state in a slot-type drive device according to the present invention;

Fig. 6 is a plan view in which a disk is transported and loaded in a slot-in type drive device according to the present invention;

7 is a side view of a state in which a disk is transferred between a conveying roller and a guide roller in a slot-in type drive device according to the present invention.

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

32: case 34: slot

36: disc guide 38: feed roller

40: position moving member 44: turn table

46: clamp 48: insertion position sensor

50: discharge position sensor 52: loading motor

54: gear train 56: disc lever

57: guide roller 58: tension spring

60: support lever 62: completion switch

66: support guide member D: disk

The present invention relates to a slot-in type drive device, and more particularly, to a slot-in type drive device that significantly reduces the damage (scratch) of a disk.

Disc-type recording media include optical disc-type recording media configured to read and write signals via light, and magnetic disk-type recording media configured to read and write signals by changing the phase of the disk surface using magnetic characteristics. do. Among the optical disc-type recording media, various standards are disclosed and spread, but compact discs (CDs) and digital versatile disks ("DVDs") are most widely used. Such an optical disc-type recording medium performs recording or reproducing through a separate drive device, and is classified into audio, video, data recording, etc. according to the type of the recorded signal and the data content.

The apparatus for driving the optical disk-type recording medium is configured to move the optical pickup device while loading and rotating the recording medium to read and write signals, which are classified into a tray type and a slot-in type according to the method of loading the recording medium. . In the tray type, when the button is pressed, the tray protrudes from the inside of the main body. When the recording medium is placed on the protruding tray and the button is pressed, the tray moves to the inside of the main body to load the recording medium. In addition, the slot-in type is a structure in which a slot is formed on the front side without a tray, and the appearance is formed by a box-shaped case, and when the recording medium is inserted through the front slot, the sensor detects the insertion of the recording medium. The transfer mechanism is operated by the power to transfer the recording medium therein.

1 is a block diagram showing a type drive apparatus which is a conventional slot. As shown in the drawing, a slot 4 is formed in the front of the case 2 in which the disk D is inserted / extracted, and a disk guide for guiding the disk D from the upper side of the case 2 ( While 6) is fixedly installed, a conveying roller 8 for conveying the disk D while guiding it from below is provided. The feed roller 8 moves along the cam groove 10a of the position cam 10 so that its position changes. The position cam 10 swings in response to the contact of the disk D. 12) to perform the milia operation. In addition, a turn table 14 in which the disk D is loaded and rotated is installed inside the case 2, while a clamp 16 clamping the disk D loaded in the turn table 14. Is provided above the turn table 14.

On the bottom surface of the disc guide 6, two projections 6a, 6b contacting the disc D are provided on both sides of the vertical center line L1 of the feed roller 8 at predetermined intervals S1. Formed. In addition, the transfer roller 8 is installed at the end of the support lever 18, the support lever 18 is rotatable around the hinge point (H1) is supported by the torsion spring 20 is supported by the transfer roller (8) can convey while supporting the disk (D).

In the slot-type drive apparatus according to the present invention configured as described above, as shown in FIG. 1, when the user inserts the disk D through the slot 4, the disk D is inserted by an insertion position sensor (not shown). When the feed roller 8 is rotated in the direction of the arrow by the operation of the loading motor and the gear train (not shown), the disc D is guided by the disc guide 6 to clamp the turntable 14 and the clamp. It is transported between 16. At this time, the friction force between the conveying roller 8 and the surface of the disk D is applied by the torsion spring 20.

When the disc D to be fed pushes the disc lever 12, the disc lever 12 pushes the position movement cam 10 to the left, so that the feed roller 8 moves the hinge point H1. While rotating about the rotation center, the shaft 8a moves downward while receiving the elastic force of the torsion spring 20 and moves downward through the cam groove 10a formed in the position cam 10. 14) and clamped by the clamp 16, the loading of the disk D is completed as shown in FIG.

However, in such a slot type drive device, since the disk D is inclined at the beginning of the insertion of the disk D and at the completion of the transfer of the disk D, the disk contacts the clamp 16 and the turntable 14 to be transported. Therefore, the upper and lower information surfaces of the disk are damaged, and the conveying roller 8 applied to the cam groove 10a of the positioning cam 10 by the excessive elastic force of the torsion spring 20 while the disk D is loaded. There was a problem that the wear and noise caused by.

To solve this problem, the inner bottom of the slot 4 is inclined toward the center portion to guide and support the disk, and the bottom of the disk guide 6 is located at a position between the slot 4 and the transfer roller 8. A type drive device, which is a slot which forms a protrusion to guide the upper surface of the disk D and allows the disk guide 6 to press the disk by the pressing plate instead of removing the torsion spring 20, is registered in Korea. Patent No. 0672970 is disclosed.

By the way, in the conventional slot type drive device configured as described above, as shown in Fig. 3, the protrusions 6a and 6b formed on the bottom surface of the disc guide 6 are inclined toward the longitudinal center of the disc guide 6 to be inclined. By contacting only the edge of the disk (D) to reduce the contact between the disk guides 6 which are in sliding contact with each other when the disk (D) is transported, but the disk by the pressing force by the conveying roller (8) Since the (D) is easily bent, the information surface of the disc is easily damaged between the disc guides 6 in sliding contact, and thus there is a problem that the damage of the disc cannot be prevented fundamentally.

When damage occurs on the surface of the disk D as described above, the playback characteristics of the disk are greatly reduced. Recently, due to the development of technology, the storage capacity of the disk has increased significantly. As such, in order to store a lot of information in a small space, the space becomes narrow. If a lot of damage occurs on the surface of the disc, the optical error is read out through optical pickup. Particularly, in case of movie information with a lot of stored information, information is recorded on both sides of the disc. If scratches or damages occur on the upper and lower sides of the disc, the disc's information recognition rate is lowered. It does not guarantee regeneration in long term storage.

In addition, in order to solve the problem caused by the elastic force of the torsion spring 20 is applied in the state that the disk (D) is loaded as shown in Figure 2 improved to the structure installed in the pressing plate on both sides However, since the structure is coarse and the elastic force is insufficient, the disk guide 6 cannot be sufficiently pressed, so that the disk cannot be smoothly transferred.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is a slot for smoothly transporting a disk while preventing damage to the disk during a loading / unloading process of the disk, thereby increasing reliability. It is to provide a type drive device.

The present invention for achieving the above object, the front of the case is formed with a slot that the disk is inserted / withdrawn, the inner front of the case is provided with a disk guide for guiding the disk from the upper side while the disk from the lower side A conveying roller for guiding and conveying is installed in the positioning member, and a turn table for loading and rotating the disk is installed in an inner middle portion of the case, while a clamp for clamping the disk loaded on the turn table is provided in the turn table. In the type driver device is a slot provided in the upper side, a guide roller is provided on the bottom surface of the disk guide to guide the top surface of the disk at a position between the slot and the feed roller, the guide roller is the center of the longitudinal direction of the disk guide Two slanted toward And that is characterized.

The positioning member is formed with a guide groove for guiding the shaft of the conveying roller, the conveying roller is supported by the shaft is caught on both ends of the guide groove, the disk guide is hinged to one end of the other end Both sides of the width direction are pulled downward by the tension spring connected to the lower part of the case to press the disk.

At one end of the clamp, a support member is formed at one end thereof to prevent excessive deflection of the disk guide, and at the other end thereof, a support guide member having a second support portion to prevent excessive lifting of the disk.

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

4 is a block diagram showing a slot-in type drive device according to the present invention. As shown, the front of the case 32 is formed with a slot 34 through which the disk D is drawn in / out, and a disk guide for guiding the disk D from the upper side in the inner front of the case 32. While 36 is installed, a conveying roller 38 for guiding the disk D from the lower side is provided on the position moving member 40, and the disk D is provided at an inner middle portion of the case 32. The turn table 44 is loaded and rotated while a clamp 46 clamping the disk D loaded on the turn table 44 is provided above the turn table 44.

6, an insertion position sensor 48 for detecting the insertion of the disk is installed inside the case 32, and an ejection position sensor 50 for detecting that the disk is ejected is installed. have. In addition, a loading motor 52 for rotating the feed roller 38 is installed together with the gear train 54, and the right side of the position shifting member 40 is oscillated in accordance with the contact of the disk D. The disk lever 56 which pushes and moves the position moving member 40 is provided.

The slot 34 has its inner bottom 34a inclined toward the center of the disc so that both sides guide and support the disc.

As shown in FIG. 4, a guide roller 57 is installed on the bottom of the disc guide 36 to guide the top surface of the disc D at a position between the slot 34 and the transfer roller 38. have. As shown in FIG. 7, two guides 57a and 57b are inclined toward the center of the disc guide 36 in the longitudinal direction, and two rollers are fitted on the outer circumferential surfaces of the two rotary shafts. Guide rollers 57a and 57b are formed.

One end of the disk guide 36 is hinged to the hinge point (H2) so that both ends in the width direction of the other end is pulled downward by the tension spring 58 connected to the lower portion of the case 32 to draw the disk (D) It is to pressurize.

The feed roller 38 is installed at the end of the support lever 60, the support lever 60 is rotatable around the hinge point (H3), and extends downward from the hinge point (H3) ( 60a is formed so that the extension 60a operates the completion switch 62 to stop the rotation of the loading motor 52. The roller portion of the feed roller 38 is made of a rubber material, and the roller portion is made smaller in outer diameter from its both ends to the middle.

A guide groove 40a for guiding the shaft 38a of the transfer roller 38 is formed at the left side of the positioning member 40, and the gear train 54 is formed at the bottom left side of the positioning member 40. The rack 40b which is bitten by one gear 54a of () is formed. Both ends of the guide groove 40a form a horizontal portion, and the shaft 38a of the feed roller 38 is caught, and the middle thereof is inclined in the vertical direction. Therefore, as the shaft 38a of the feed roller 38 moves along the guide groove 40a, the feed roller 38 is moved in the vertical direction to convey the disk D while supporting the disk D or the disk D. Fall off.

One side of the turn table 44 is provided with an optical pickup unit 64 for reproducing and recording the information of the dark.

In addition, a first support portion 66a is formed at one end of the clamp 46 to prevent excessive deflection of the disc guide 36, and a second second end of the clamp 46 prevents the disc D from being excessively lifted. The support guide member 66 in which the support part 66b was formed is provided.

In the slot-in type drive apparatus according to the present invention configured as described above, as shown in FIG. 5A, when the user inserts the disk D through the slot 34, the insertion position sensor 48 (shown in FIG. 6) is used. The disk D is sensed and the feed roller 38 is rotated in the direction of the arrow by the operation of the loading motor 52 and the gear train 54 and the disk D is guided by the disk guide 36. It is conveyed between the turn table 44 and the clamp 46.

At this time, the frictional force between the transfer roller 38 and the surface of the disk (D) is transmitted through the guide roller 57 of the disk guide 36 by the pressing force pulled by the tension spring 58, The disk D is supported at three positions by the inner bottom face 34a of the slot 34 and the guide roller 57 and the feed roller 38 so that the disk D is conveyed as shown in FIG. 5B. Since it is inserted while maintaining equilibrium without interfering with the turn table 44 and the clamp 46, the damage of the disk D is prevented. Then, the disk D is significantly reduced in wear and easily transported by the rolling contact of the guide roller 57 and the transfer roller 38. At this time, the tension spring 58 facilitates the transfer of the disk (D) at a suitable pressing force.

And, when the disk D is inserted into the slot 34, the inner bottom face 34a of the slot is inclined toward the center of the disk, and the guide roller 57 is the longitudinal center of the disk guide 36. Since the two 57a and 57b are inclined toward each other, only the edge of the disc D (the portion where information is not recorded) touches both ends of the inner bottom 34a and the guide roller 57, so that the disc D ) Is prevented from being damaged.

In addition, the support guide member 66 provided on the upper side of the clamp 46 prevents the first support portion 66a from excessive sagging of the disk guide 36, and the second support portion 66b prevents the disk D from being damaged. ) To prevent excessive lifting, thereby essentially eliminating contact between the turntable 44 and the clamp 46 during transfer of the disk D to prevent damage to the disk D.

FIG. 6 shows a state in which the disk D is sequentially transported and inserted into the positions D1, D2, D3, and D4. When the conveyed disk D pushes the disk lever 56 like the position of D4, The disk lever 56 pushes the position shifting member 40 to the left, so that the feed roller 38 rotates around the hinge point H3 as the center of rotation and is formed in the guide shifter 40a. ), The rack 40b formed in the position shifting member 40 is caught by the gear 54a of the gear train, and the movement of the position shifting member 40 continues by the driving force of the loading motor 52. The disk D is seated on the turntable 44 and clamped by the clamp 46, and the extension 60a of the support lever 60 activates the completion switch 62 to load the loading motor 52. The rotation of the motor is stopped so that the loading of the disk D is completed as shown in Fig. 5C.

At this time, since there is no force applied to the support lever 60 supporting the transfer roller 38 in the state in which the disc D is loaded, there is no wear of the guide groove and the shaft so that noise does not occur.

In addition, the unloading of the disk D causes the clamp 46 of the clamp 46 to be released by the disk discharge signal, and the loading motor 52 rotates in the opposite direction, and the position shift member 40 of the gear 54a of the gear train The conveying roller 38 coupled to the shaft 38a moving along the guide groove 40a because it is moved backward by the rotation comes into contact with the milliard disk D in the direction of the disk guide 36 and thus the disk D. Is discharged. When the disc is ejected by the ejection position sensor 50 shown in Fig. 6, the loading motor 52 is stopped. Even during the unloading of the disk, the disk is kept horizontal without sagging, thereby preventing contact with the clamp and the turntable, thereby preventing damage.

The present invention is not limited to the above embodiment and can be modified in various ways.

According to the slot-in type drive device according to the present invention, the disk is smoothly transported while preventing the disk from being damaged during the loading / unloading process, thereby improving reliability.

Claims (3)

The front of the case is formed with a slot for the disk is drawn in / out, the inner front of the case is provided with a disk guide for guiding the disk from the upper side, while the conveying roller for guiding the disk from the lower side to the positioning member In the inner middle portion of the case is provided with a turn table to which the disk is loaded and rotated while a clamp for clamping the disk loaded on the turn table is a slot provided in the upper side of the turn table, A guide roller is installed on the bottom of the disc guide to guide the top surface of the disc at a position between the slot and the transfer roller. The guide roller is a slot-in type drive device, characterized in that two are inclined toward the longitudinal center of the disk guide. The method of claim 1, The positioning member is formed with a guide groove for guiding the shaft of the conveying roller, the conveying roller is supported by the shaft is caught on both ends of the guide groove, The disc guide is a slot type drive device, characterized in that the one end is hinged and both ends in the width direction of the other end is pulled downward by the tension spring connected to the lower portion of the case to press the disc. The method according to claim 1 or 2, An upper portion of the clamp is provided with a first guide portion for preventing excessive deflection of the disk guide at one end thereof, and a support guide member having a second support portion for preventing excessive lifting of the disk is provided at the other end thereof. Slot-in type drive unit.

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