KR20010068973A - Disc drive - Google Patents

Abstract

PURPOSE: An optical disk drive is provided to prevent deterioration of operation and to improve reliability by having a shaking prevention device to cut off and dissipate vibration originated from the inside and to be equipped with one side of a rack guide. CONSTITUTION: A sled base is installed by an anti-vibration rubber at the upper part of a main frame. A motor rotates an optical disk at the upper part of the sled base. A pickup is moved reciprocating in a side to scans light to the optical disk. A guide transfers this. A sled motor controls transfer of the pickup. A tray loads the optical disk in the inside and places the optical disk so that the pickup regenerates and records signal of the optical disk. A first, second rack guide(30,30') guides the tray to be entered to a correct location of deck mechanism. A first, second slide rack help motion of the tray to be smooth between the tray and the first, second rack guide(30,30'). A shaking prevention device(40) prevents the first, second slide rack from vibrating at the inside of the first, second rack guide(30,30').

Description

Optical Disk Drive {DISC DRIVE}

The present invention relates to an optical disk drive, and more particularly, by providing a rocking prevention means on one side of a rack guide of the optical disk drive, to effectively block the vibration transmitted to the slide rack, optical disk signal reproduction and recording transmission due to internal vibration, etc. The present invention relates to an optical disc drive capable of preventing operation deterioration and improving reliability of data input and reading of the optical disc.

Recently, as the PC industry has been activated and interest in digital-related devices has increased, high-density storage devices such as DVDs and recording devices such as CD-ROMs have become commonplace, and COMBO products that can play DVDs and record optical discs have been released. While optical pickup requires more stringent precision for various performances, a method of suppressing vibration due to high speed rotation is required.

1A and 1B are plan views showing open and closed trays in a deck mechanism of an optical disk drive, such as a thin CD-ROM / DVD-ROM for notebooks, which is generally used. And the loading system and other parts.

The sled system is a part for reproducing and recording a signal inherent in the optical disk, the spindle motor 9 for rotating the optical disk, the motor PCB 11 for controlling the spindle motor 9, and the optical disk. And a sled base 12 for receiving components such as a sled motor 13 for controlling the movement of the pick-up 14 and reciprocating to the side to irradiate light.

The loading system loads the optical disc into the system so that the pickup 14 reproduces and records the signals of the optical disc. The tray 10 has a structure in which the optical disc is seated, and the tray 10. The first and second rack guides 4 and 5 for guiding the deck mechanism into the correct position, and between the tray 10 and the first and second rack guides 4 and 5; First and second slide racks (6,7) to help smooth sliding, and the main frame (1) for holding and receiving the components while fixing the first and second rack guides (4,5) .

The other part may include a server (not shown) for driving and driving the deck mechanism, a main board (2) for interfacing with an external device when reproducing and recording a signal of the optical disc, and the sled The main F fish 3 is connected to the system, and the loading switch 15 for detecting that the tray 10 is seated inside.

2A and 2B are perspective and front views of the rack guides 4 and 5, wherein the rack guides 4 and 5 are horizontally provided with upper guides 4a and 5a installed on the upper side, and the upper guides 4a and 4a, respectively. It consists of a lower guide (4b, 5b) installed in parallel to the lower side of 5a), and fixing plates (4c, 5c) connecting the upper guide (4a, 5a) and the lower guide (4b, 5b), the lower guide Stoppers 4d and 5d protrude upward and are formed at the ends of 4b and 5b.

Looking at the operation of the deck mechanism of the conventional optical disk drive having the configuration as described above are as follows.

1A and 1B, after moving the tray 10 and the sled base 12 assembly out of the mainframe 1 to load the optical disc into the deck mechanism, the optical disc is moved to the spindle motor 9. Seat on the turntable 18 and push the tray 10 into the deck mechanism.

In this case, as shown in FIG. 3, the rails 10a formed on both sides of the tray 10 are in contact with both slide racks 6 and 7, and the slide racks 6, 7) is coupled to the rack guides (4, 5).

When the tray 10 is pushed into the deck mechanism to close the tray 10, the tray 10 and the slide racks 6 and 7 enter the deck mechanism through the rack guides 4 and 5, and the slide rack When the rear end of (6, 7) reaches the stoppers (4d, 5d) of the rack guides (4, 5), the slide racks (6, 7) are stopped, and then the tray (10) is the slide rack (6, 7). It slides inward and closes inside.

As shown in FIG. 1B, when the tray 10 is closed, the rear end of the tray 10 is in contact with the loading switch 15 on the main board 2 to detect the state of being closed, and the spindle motor 9 Rotates the optical disc and data transfer occurs between the pickup 14 and the optical disc.

However, in the optical disk drive having the above configuration, when the spindle motor 9 is driven to rotate the optical disk, internal vibrations resulting from the rotation of the optical disk and the spindle motor 9 are generated, and the generated vibration is It is transmitted to the sled base 12, the tray 10, the slide racks 6 and 7, the rack guides 4 and 5, and the main frame 1 to induce vibration of the entire optical disk drive and the entire equipment.

In particular, during the transmission of the vibration, the tray 10, the slide racks (6, 7), the rack guides (4, 5) are in motion while making a sliding contact with each other inevitably shown in FIG. As such, the gap G is required.

However, when the optical disk rotates, the tray 10, the slide racks 6 and 7, and the rack guides 4 and 5 vibrate violently when the optical disk rotates due to the gap G. On the other hand, there is a problem of inducing vibration noise, preventing operation degradation such as optical disc signal reproduction and recording transmission, and lowering reliability of data input and reading of the optical disc.

The present invention has been made to solve the problems of the prior art as described above, the object of the present invention by blocking the vibration transmitted through the gap formed between the contact surface of the rack guide and the slide rack of the optical disk drive, resulting from internal vibration The present invention provides an optical disc drive capable of preventing operation deterioration such as optical disc signal reproduction and recording transmission, and improving reliability of data input and reading of the optical disc.

1A and 1B are plan views illustrating an open state and a closed state of a tray in a deck mechanism of a conventional optical disc drive.

2A and 2B are a perspective view and a front view of a rack guide in a conventional optical disk drive.

3 is a cross-sectional view showing a tray coupled state in the deck mechanism of the conventional optical disk drive.

4a and 4b is a perspective view and a front view of the rocking prevention means and the rack guide in the optical disk drive according to the present invention.

<Code Description of Major Parts of Drawings>

30,30 ': 1st, 2nd rack guide 31,31': Upper guide

31a, 31a ': Notch 32,32': Lower guide

32a, 32a ': stopper 33,33': fixing plate

40: shaking means 41: connection

42: bend

In order to achieve the above object, the optical disk drive according to the present invention is characterized in that the slide rack for supporting the tray on which the optical disk is seated is configured to include a rocking prevention means for preventing the inside of the rack guide for guiding the slide rack Do it.

The rocking preventing means includes a connecting portion coupled to the rack guide, a bent portion extending from the connecting portion to elastically contact with the slide rack, the connecting portion is coupled to the upper surface of the rack guide, the curved portion is the rack It is preferable that the upper part of the guide protrudes to the lower side of the partially cut out portion.

Hereinafter, preferred embodiments of the present invention will be described based on the accompanying drawings.

The deck mechanism of the optical disk drive according to the present invention is a sled base is installed by the anti-vibration rubber on the upper side of the main frame, a motor for rotating the optical disk on the upper side of the sled base and reciprocating to the side to irradiate light to the optical disk A pickup to be moved, a guide for transporting it, a sled motor for controlling the movement of the pickup, a tray into which the optical disc is seated so that the pickup can reproduce and record signals of the optical disc, and First and second rack guides (30,30 ') for guiding the tray to the correct position of the deck mechanism, and between the tray and the first and second rack guides (30,30') The first and second slide racks 6 and 7 and the first and second slide racks 6 and 7 which help to smooth the sliding are vibrated inside the first and second rack guides 30 and 30 '. Preventing things It is configured to include a swing-preventing means (40).

4A and 4B are a perspective view and a front view of the first and second rack guides 30 and 30 'including the shaking preventing means 40 according to the present invention, wherein the shaking preventing means 40 is a tray on which an optical disk is mounted. To prevent the first and second slide racks 6 and 7 supporting the first and second slide racks 6 and 7 from vibrating inside the first and second rack guides 30 and 30 '. The bar 41 is formed to be coupled to the upper surface of the first and second rack guides 30 and 30 ', and extends from the connection portion 41 to the first and second slide racks 6 and 7. An upper portion of the first and second rack guides 30 and 30 'is formed of a bent portion 42 which protrudes to the lower side of the cutout portions 31a and 31a' which are partially cut out so as to be in sexual contact.

Preferably, the rocking prevention means 40 is preferably a plurality of elastic materials to dissipate vibration.

On the other hand, the rack guides 30 and 30 'are formed to have a long U-shaped cross-section as a whole, and have upper guides 31 and 31' having cutouts 31a and 31a 'partially cut off from the upper side horizontally. A stopper 32a which is spaced apart from the upper guides 31 and 31 'by a predetermined distance and is in contact with the first and second slide racks 6 and 7 in sliding contact. And 32a ', the lower guides 32 and 32' protruding upward, and the fixing plates 33 and 33 'vertically connecting the upper guides 31 and 31' and the lower guides 32 and 32 '. Is formed.

Looking at the operation of the deck mechanism of the optical disk drive according to the present invention having the above configuration as follows.

After moving the tray and the sled base assembly out of the mainframe to load the optical disc into the deck mechanism, the optical disc is seated on the turntable of the spindle motor and the tray is pushed into the deck mechanism.

At this time, the tray is in contact with the first and second slide racks 6 and 7 on both sides, and the first and second slide racks 6 and 7 are coupled to the first and second rack guides 30 and 30 '. .

When the tray is pushed into the deck mechanism to close the tray, the tray and the slide racks 6 and 7 enter the deck mechanism through the rack guides 30 and 30 ', and the slide racks 6 and 7 When the rear end of the rack guides 30 and 30 'reaches the stoppers 32a and 32a', the slide racks 6 and 7 are stopped, and the bent portion 42 of the oscillation preventing means 40 is shown in FIGS. As shown in 4b, the upper end of the slide rack (6, 7) while pressing through the cutout (31a, 31a ') with a resilient downward force to reduce and absorb the vibration.

Accordingly, the optical disk drive having the oscillation preventing means 40 as described above is generated internal vibration resulting from the rotation of the optical disk and the spindle motor, the generated vibration is sled base, tray, slide rack (6, 7) ), The rack guides (30, 30 ') and the slide rack (6, 7) and by the rocking prevention means (40) provided in the rack guides (30, 30') during the transmission process of the vibration even if transmitted to the main frame Since the vibration is blocked between the rack guides 30 and 30 'and the vibration is dissipated, reliability of data input and reading of the optical disc is improved.

As described above, the optical disk drive according to the present invention is provided on one side of the rack guide by providing a swing preventing means for blocking and dissipating vibration caused by the inside by contacting the upper surface of the slide rack with elastic force, It is possible to prevent the operation deterioration such as optical disk signal reproduction and recording transmission resulting from vibration, and to improve the reliability of data input and reading of the optical disk.

Claims (3)

And a rocking preventing means for preventing the slide rack supporting the tray on which the optical disk is seated from vibrating inside the rack guide for guiding the slide rack. The optical disc drive of claim 1, wherein the shaking prevention means comprises a connecting portion coupled to the rack guide, and a bent portion extending from the connecting portion and elastically contacting the slide rack. The optical disc drive of claim 2, wherein the connection part is coupled to an upper surface of the rack guide, and the bent part protrudes to a lower side of a cutout part of which the upper part of the rack guide is partially cut out.