KR100930355B1 - Optical disc drive - Google Patents

Abstract

The present invention relates to an optical disc drive. An optical disc drive according to the present invention includes a housing in which an optical disc seat is formed, a turn table for rotating the optical disc seated in the optical disc seat, and an optical pickup device for recording or reproducing information on a disk which is formed inside the housing and rotates. The optical disc seating portion includes at least one stepped portion. As a result, when the optical disc is rotated to record or reproduce information on the optical disc, scratching of the disc can be prevented.

Description

Optical disk drive {A optical disk drive}

The present invention relates to an optical disc drive, and more particularly, to an optical disc drive capable of preventing scratches of an optical disc by forming at least one stepped portion in a seating portion formed in a housing of the optical disc drive.

Optical disc drives are widely used as devices for recording or reproducing signals on a large capacity optical recording medium (optical disc) such as CD, DVD and BD.

An optical disc drive, which is an optical recording and reproducing apparatus, is an apparatus that records or reproduces predetermined information on an optical disc by using optical means such as an optical pickup apparatus.

The optical disc drive is used in a built-in form such as a desktop computer or a notebook computer, or is connected to a computer externally, and is also used as a DVD player or a CD player.

However, when the optical disc is inserted into the optical disc drive and the optical disc is rotated by the turntable in order to record or reproduce predetermined information on the optical disc, the information of the optical disc is lost due to friction with the seating portion formed in the housing of the optical disc drive by rotation. Scratches may occur on the recording and reproducing surfaces to be recorded, which may cause data loss of the optical disc.

An object of the present invention is to provide an optical disk drive which can prevent scratches of the optical disk by forming a stepped portion in the optical disk seating portion formed in the housing of the optical disk drive.

According to an aspect of the present invention, an optical disk drive includes a housing in which an optical disk seat is formed, a turn table for rotating the optical disk seated in the optical disk seat, and a recording or reproducing information on a disk that is formed inside the housing and rotates. An optical pickup device for carrying out the optical disc mounting portion includes at least one stepped portion.

According to the invention. At least one stepped portion is formed in the optical disk seating portion formed in the housing of the optical disk drive at predetermined intervals, thereby reducing the friction of the optical disk by reducing friction with the recording and reproducing surface of the optical disk which rotates when recording and reproducing predetermined information on the optical disk. There is an advantage that can prevent the phenomenon.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

1 is a perspective view showing a case where an optical disk drive according to the present invention is applied to a notebook computer.

As shown in the figure, the application to the notebook computer is illustrated, but the present invention can be applied to any device for recording and reproducing an optical disc, such as a desktop computer, a DVD player, and a CD player.

Referring to FIG. 1, the optical disc drive 110 may be withdrawn from the notebook computer main body 100, or may have a form and a structure that are completely inserted into the notebook computer main body 100.

The optical disc drive 110 may include a housing 115, a turntable 120, a cover 125, and a guide 130 for a slide.

The optical disk 135 is operated while being completely inserted into the tray accommodating groove 140 of the notebook computer body 100 while being mounted on the housing 115.

That is, when the optical disk drive 110 is not used, the cover 125 completely covers the housing accommodating groove 140 so that the optical disk drive 110 itself is not exposed to the outside.

In addition, to prevent foreign substances such as dust from penetrating into the inside, and when using the optical disk drive 110, the cover 115, the tray 115 is completely withdrawn from the receiving groove 140 and then turntable 120 The disk 135 is placed on it, and the housing 115 is completely pushed into the receiving groove 140 to be used.

When the housing 115 is withdrawn or pushed out of the receiving groove 140, the guide 130 may be provided to allow the housing 115 to move stably.

In addition, a corresponding guide (not shown) that works together with the guide 130 may be formed inside the receiving groove 140 to allow the housing 115 to move in and out smoothly and stably.

FIG. 2 is a plan view of the optical disk drive applied to FIG. 1 and FIG. 3 is a view showing the structure of the optical disk drive applied to FIG.

2 and 3, the optical disk drive 200 according to the present invention may include a housing 205, an optical pickup device 230, guides 235a and 235b, and a motor 240.

As shown in the drawing, the housing 205 may have a circular disk seating portion 204 having the same shape as the optical disk.

A disk seating groove 225 may be formed on the outer circumferential surface of the disk seating portion 204 so as to be spaced apart from the outer circumferential surface of the optical disk by a predetermined distance. A stepped portion (not shown) may be formed. A stepped portion (not shown) will be described later with reference to FIG. 4.

The optical pickup device 230 may read or record information recorded on the optical disk, the guides 235a and 235b may be provided for the forward and backward operations of the optical pickup device 230, and the motor 240 may include the optical disk driver ( 200 may be provided for driving.

4 is a plan view illustrating a stepped portion of the optical disk drive according to the embodiment of the present invention.

Referring to FIG. 4, the optical disk drive 300 according to the present invention includes a housing 310 including a disk seating part 305, a turntable 320, a cover 330, a guide 340, and an optical pickup device ( 370).

The housing 310, the turntable 320, the cover 330, the guide 340, and the optical pickup device 470 are the same as those described with reference to FIGS. 1 and 2, and will be omitted below and only the differences will be described.

As shown in FIG. 4, the housing 310 of the optical disc drive 300 has a disc seating portion 305 to which an optical disc is seated, and the disc seating portion 305 is formed in the same circular shape as the optical disc. It is.

A disc seating groove 350 may be formed on an outer circumferential surface of the disc seating part 305 so that the friction between the optical disc and the disc seating part 305 may be reduced when the optical disc rotates.

The disc seating groove 350 may have a stepped portion 360 so as to prevent shaking of the optical disc when the optical disc rotates during recording and playback of the optical disc.

The stepped part 360 may be continuously formed on the outer circumferential surface of the seating part in which the disc seating groove 350 is formed, but the plurality of stepped parts may be used to reduce the contact area with the optical disc and prevent scratches occurring when the optical disc is rotated. 360 may be formed spaced apart from a predetermined interval.

Although the number of the stepped portions 360 is illustrated as four, the number is not limited, and when rotating the optical disc, it is preferable that the number of steps 360 is formed at equal intervals so as to balance the rotating optical disc.

In addition, as shown, the step portion 360 is integrally formed at the same time when the injection molding of the housing 310, the cross section is formed on the outer peripheral surface of the disc seating portion 305 is formed in a step shape, but is not limited thereto. .

5 to 7 are plan views illustrating various embodiments of an optical disc drive stepped part according to the present invention.

Referring to FIG. 5, the optical disk drive 400 according to the present invention includes a housing 410 including a disk seating part 405, a turntable 420, a cover 430, a guide 440, and an optical pickup device ( 470, and may further include a step 460 and a buffer 465.

The housing 410, the turntable 420, the cover 430, the guide 440, and the optical pickup device 470 are the same as those described with reference to FIGS. 1 and 2, and will be omitted below and only the differences will be described.

The stepped portion 460 formed on the outer circumferential surface of the disc seating groove 450 and formed to prevent damage of the optical disk by preventing shaking of the optical disk when the optical disk rotates during recording and playback of the optical disk is formed on the stepped portion 460. The buffer unit 465 may be formed to prevent scratching of the optical disk more effectively.

As illustrated in FIG. 5, the buffer part 465 may be formed on the stepped part 460 to prevent scratches caused by friction generated when the optical disc rotates, and may also protect the optical disc from external impact.

Since the stepped portion 460 is formed at the same time as the injection molding of the housing 410 is made of a plastic material, the buffer portion 465 is made of at least one of softer soft synthetic resin, hard urethane, and rubber material to compensate for the disadvantages of the plastic material. It can be formed of either.

As illustrated, the buffer part 465 may be formed on the stepped part 460 in a "-" shape. The buffer unit 465 having a "-" shape may be formed by coating the above-described material on the stepped part 460 or by adhering on the stepped part 460.

The buffer part 465 formed in a “-” shape on the stepped part 460 may minimize the damage of the optical disc due to the scratching phenomenon when the optical disc is rotated in the optical disc drive 400.

Referring to FIG. 6, an optical disk drive 500 according to the present invention includes a housing 510, a turntable 520, a cover 530, a guide 540, and an optical pickup device 570 including a disk seating portion 505. ), And may further include a step 560 and a buffer 565.

The housing 510, the turntable 520, the cover 530, the guide 540, and the optical pickup device 570 are the same as those described with reference to FIGS. 1 and 2 and will be omitted below and only the differences will be described.

The buffer part 565 is formed on the stepped part 560 and has a “b” shape on the stepped part 560 to protect the optical disc due to scratches during rotation and protection of the optical disc seated in the optical disc drive 500. It can be formed as.

The material, the formation method, and the effect of the shock absorbing portion 565 are the same as in the above description of FIG. 5 and will be omitted below.

Referring to FIG. 7, the optical disk drive 600 according to the present invention includes a housing 610 including a disk seating part 605, a turntable 620, a cover 630, a guide 640, and an optical pickup device 670. ), And may further include a step 660 and a buffer 665.

The housing 610, the turntable 620, the cover 630, the guide 640, and the optical pickup device 670 are the same as those described with reference to FIGS. 1 and 2, and will be omitted below and only the differences will be described.

The buffer part 665 is formed on the stepped part 660 and is formed on the stepped part 660 in order to protect the optical disc due to scratching and rotation of the optical disc seated in the optical disc drive 600 and the detachment of the optical disc. It may be formed in the shape of "".

By forming the shock absorbing portion 665 in a "c" shape, it is possible to prevent the optical disk drive 600 from being rotated or the optical disk drive 600 into which the optical disk is inserted, due to tilting.

The material of the shock absorbing portion 665 is the same as that of FIG. 5, and the method of forming the shock absorbing portion 665 is preferably formed on the stepped portion 660 by forming the shock absorbing portion 665 in a “c” shape.

8 is a cross-sectional view showing a cross section of an optical disk drive according to an embodiment of the present invention.

Referring to FIG. 8, the optical disk drive 700 according to the present invention may include a housing 720 including a disk seat 725 and a turntable 740.

A step portion 750 may be formed in the disc seating portion 725, and a buffer portion 860 may be formed on the step portion 750.

As shown, when the optical disk 810 is coupled to the turntable 840 which rotates the optical disk 810 to seat the optical disk drive 700, the optical disk 810 is seated on the disk seat 825 formed in the same shape. .

Since the disk seat 825 and the optical disk 810 seated are spaced apart from each other by a predetermined interval, when the turntable 840 is rotated to record or reproduce the information of the optical disk 810, the optical disk 810 is the disk seat 825. ), A scratch may occur on the recording or reproducing surface of the optical disc 810, which may damage the disc. Thus, a step 850 is formed on the disc seating part 825 to rotate the optical disc 810. Scratches can be prevented at the time.

In addition, in order to minimize the scratching phenomenon due to the rotation of the optical disk 810, the buffer portion 860 may be formed of a soft synthetic resin, a hard urethane and a rubber material on the stepped portion 850 to minimize the scratching phenomenon.

Although the shock absorbing portion 860 is formed to have a "-" shape, the present invention is not limited thereto, and may be formed in the "b" or "c" shape described above with reference to FIGS. 6 and 7.

Although the present invention has been shown with respect to the case where it is applied to a notebook computer, it can be applied to all devices for recording and reproducing optical discs, such as a desktop computer, a DVD player, and a CD player, in addition to the notebook computer.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

1 is a perspective view showing a case where an optical disk drive according to the present invention is applied to a notebook computer;

FIG. 2 is a plan view of the optical disk drive applied in FIG. 1; FIG.

3 is a view showing the structure of the optical disk drive applied in FIG.

4 is a plan view showing a step of the optical disk drive according to an embodiment of the present invention;

5 to 7 are plan views illustrating various embodiments of an optical disc drive stepped part according to the present invention; and

8 is a cross-sectional view showing a cross section of an optical disk drive according to an embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

300: optical disc drive 305: disc seat

310: housing 320: turntable

330: cover 340: guide

350: disc seating groove 360: stepped portion

Claims (9)

A housing in which an optical disc seat is formed; A turn table for rotating the optical disc seated on the seating part; An optical pickup device for recording or reproducing information on an optical disc rotated by the turn table; The optical disk seating portion, And at least one stepped portion formed in a disc seating groove provided on an outer circumferential surface of the optical disc seating portion. The method of claim 1, And the stepped portion is formed integrally with the housing. The method of claim 1, And the stepped portion prevents scratches on the recording and reproducing surface of the optical disc. The method of claim 1, The stepped portion, the optical disk drive, characterized in that the plurality is formed spaced apart by a predetermined interval. The method of claim 1, And a buffer part to prevent scratching of the optical disc on the stepped part. The method of claim 5, The buffer unit is an optical disc drive, characterized in that formed of a soft synthetic resin or hard urethane, rubber material to prevent scratches. The method of claim 5, The buffer part is formed on the stepped portion is an optical disc drive, characterized in that formed in a "-" shape. The method of claim 5, The buffer unit is an optical disc drive, characterized in that formed in the grooves of the "C" shape on the stepped portion. The method of claim 5, And the buffer part is formed in a “b” shape on the stepped part.

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