KR200196588Y1 - Disk drive in optical recording media damage protection device - Google Patents

Abstract

The present invention relates to a disk drive for inserting / removing an optical recording medium. In particular, in a slotted mechanism, when the optical recording medium is inserted, the optical recording medium is scratched in contact with the guide bushing of the spindle motor, so that important information is lost. As a disc drive having an optical recording medium damage prevention means (100) for preventing, the present invention has a timing gear (40) which works together with the insertion of the optical recording medium (D), and the gears of the timing gear (40) A power transmission means 30 interlocked with it; The cover member 60 on which the optical recording medium D is mounted is located on the timing gear 40 and the power transmission means 30, and the optical fiber is mounted on the spindle motor 10 and the spindle motor 10. The guide bushing 21 is protruded so that the hole of the central portion of the recording medium D is inserted, and is formed in the spindle motor 10 to the disk drive having the turntable 20 on which the optical recording medium B is seated. In the optical recording medium, the protrusion 41 is formed on the upper surface of the timing gear 40 and the guide hole 61 is formed in a predetermined portion of the cover member 60 as the optical recording medium 100. When the D) is inserted into the entrance port, the cover member 60 is lifted higher than the guide bushing 21 by the protrusion 41, and in this state, the timing gear 40 rotates and interlocks with the power transmission means ( 30) the optical recording medium (D) is a collision with the guide bushing (21) Positioned on the top of the guide bushing 21 safely without contact, at the same time formed on the upper surface of the timing gear 40, the protrusion 41 which rotates together with the timing gear 40 is formed in a predetermined portion of the cover member 60 The optical recording medium D is secured to the guide bushing 21 by lowering the cover member 60 inserted into the guide hole 61 so that the optical recording medium D is safely seated on the turntable 20. The disk drive is provided with an optical recording medium damage preventing device having an optical recording medium damage preventing means (100) which has an effect of preventing information from being scratched by being damaged.

Description

Disk drive with optical recording medium damage prevention device

The present invention relates to an apparatus for preventing damage to an optical recording medium. In particular, when the optical recording medium is inserted in a slotted mechanism, the optical recording medium is brought into contact with the guide bushing of the spindle motor, and the bottom surface thereof is scratched. To prevent the device from being lost.

Recently, users who want to use audio and karaoke on their PCs are almost impossible to use without a compact disc recorder / player.

That is, all of the above information is recorded by the optical recording medium and reproduced by the compact disc recorder / player.

Existing compact disc recorder / players are provided with a pickup base 2 on the main frame 1 as shown in FIGS. 1 to 4, and a spindle motor 10 on the upper surface of the pickup base 2 is provided. Is installed.

The turntable 20 is installed on the upper surface of the spindle motor 10 so that the optical recording medium D is placed thereon, and a power transmission means for raising and lowering (i.e., raising and lowering) the pick-up base 2 at an angle. 30; Engaging with the power transmission means 30, there is a timing gear 40 for operating the power transmission means 30 at the same time as the insertion of the optical recording medium (D), the timing gear 40 is a rotating shaft ( 3) is rotatably installed as a support point.

The cover member 60 is provided on the upper portion of the power transmission means 30 and the timing gear 40, and the optical recording medium D is disposed on the cover member 60 as shown in FIG. 4. A felt (FELT) 70 is attached for contact with the die.

In the optical recording medium recording / reproducing apparatus configured as described above, when the timing lever 50 is operated in the a direction in FIG. 1, the timing gear 40 integrally formed with the timing lever 50 is rotated in the b direction, Subsequently, the turntable 20 installed above the spindle motor 10 is raised, and the optical recording medium D enters in the direction of the arrow c in FIG.

At this time, when the optical recording medium D enters, the turntable 20 installed on the upper side of the spindle motor 10 has an entry direction c of the optical recording medium D as shown in FIG. Since the bottom of the optical recording medium is scratched because it is located at the same height, there is a problem that valuable data is lost.

The present invention is to solve the above-mentioned drawbacks, and by installing an optical recording medium damage preventing means in the access path of the optical recording medium recording / reproducing apparatus, the optical recording medium is scratched by the guide bushing of the spindle motor and important information is lost. To prevent it.

In order to achieve the above object, the present invention provides an optical recording between a turntable on which an optical recording medium of a slot type optical recording medium is mounted and a cover member for covering a power transmission means for raising and lowering the pickup base at a predetermined angle. The disk drive is provided with an optical recording medium damage preventing device, characterized in that the medium damage prevention means is installed.

In addition, the optical recording medium damage preventing means is formed of a protrusion formed in the upper portion of the timing gear, and an arc-shaped guide hole formed through a predetermined portion of the cover member, one end of the cover member by the protrusion of the timing gear The optical recording medium is inserted while being raised higher than the guide bushing of the spindle motor. As the timing gear rotates, the protrusion formed on the upper surface of the timing gear is also rotated at an angle to be inserted into the guide hole of the cover member. And the lid member is lowered to its original position so that the optical recording medium is safely placed on the turntable.

1 is a plan view briefly showing a conventional optical recording medium recording / reproducing apparatus.

2 is a diagram briefly showing a relationship between a conventional timing gear and a power transmission means.

3 is a cross-sectional view along the line A-A 'of FIG.

4 is a simplified diagram showing a side of a conventional optical recording medium recorder / player.

5 is a plan view briefly showing the inventive optical recording medium recorder / player.

6 (a) or 6 (b) is a diagram briefly showing the operating state of the damage preventing means of the optical recording medium of the present invention.

* Explanation of symbols for main parts of the drawings

1: main base 2: pickup base

3: rotating shaft 10: spindle motor

20: turntable 21: guide bushing

30: power transmission means 40: timing gear

41: protrusion 50: timing lever

60: cover member 61: guide hole

100: optical recording medium damage prevention means

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, the same names and shapes as in the prior art are given the same reference numerals and description thereof will be omitted.

5 is a plan view briefly showing the optical recording medium recorder / player of the present invention, and FIGS. 6 (a) and 6 (b) are simplified views showing the operating state of the damage preventing means of the optical recording medium of the present invention.

The present invention, as shown in Figure 5, the mainframe (1); The pickup base 2 provided on the main frame, the spindle motor 10 provided on the upper surface of the pick-up base 2, and the upper surface of the spindle motor 10 are rotatably mounted to the optical recording medium D. A turntable (20) on which is mounted), power transmission means (30) for raising and lowering (up-down) the pick-up base (2) at a predetermined angle; The timing gear 40 which is engaged with the power transmission means 30 and operates the power transmission means 30 simultaneously with the insertion of the optical recording medium D is rotated by the timing lever 50. It is rotatably installed at the support point, the cover member 60 is installed on the timing gear 40 and the power transmission means 30, the felt member for contacting the optical recording medium on the cover member 60 The compact disc player to which the (felt) 70 is attached is the same as the conventional one, except that the present invention has the turntable 20 and the pickup base 2 on which the optical recording medium D is placed, as shown in FIG. An optical recording medium damage preventing means 100 is installed between the cover member 60 covering the power transmission means 30 for raising and lowering the light at a predetermined angle.

That is, the damage preventing means of the optical recording medium comprising a protrusion 41 formed on the top of the timing gear 40 which is operated simultaneously with the insertion of the optical recording medium D, and a guide hole 61 formed in the cover member 60. Provided is a disk drive having an optical record carrier damage preventing device provided with the device.

The operation of the present invention will be described in detail with reference to FIGS. 5 and 6 as follows.

The optical recording medium damage preventing device 100 installed in the access path of the optical recording medium recording / reproducing apparatus forms a protrusion 41 on the timing gear 40, and the lid member is formed by the protrusion 41. One side of the 60 (one side of the cover member 60 which is in contact with the protrusion) is positioned higher than the guide bushing 21 of the spindle motor 10.

The operation of the optical recording medium (D) damage preventing device 100 to operate together with the timing gear 40 and the power transmission means 30 is as the power transmission means 30 up-downs pickup (i.e., The protrusion 41 lifts the lid member 60 higher than the guide bushing 21 or the protrusion 41 is inserted into the guide hole 61 according to the position of the optical recording medium. To determine the timing for lowering 60) (horizontally).

On the other hand, the guide hole 61 is formed in a predetermined portion of the cover member 60, the timing gear 40 is rotated, so that the projection 41 is also rotated accordingly (the cover member 60 by the protrusion If the center of the optical recording medium (D) is located in the guide bushing 21 of the spindle motor 10, the projection 41 is the cover member ( It is inserted into the guide hole 61 of 60.

That is, the timing gear 40 and the power transmission means 30 is configured to be interlocked by gearing, so that when the timing gear 40 rotates at a predetermined angle, the power transmission means 30 also rotates according to a certain angle. The recording medium D is seated on the turntable 20. The projection 41 of the timing gear 40 is inserted into the guide hole, so that the lid member held by the projection 41 is lowered, thereby recording optically. The medium is settled.

Therefore, the disc drive including the optical recording medium damage preventing device configured as described above is operated when the timing recording lever 50 is operated in the direction of arrow a 'of FIG. 5 while the optical recording medium D is inserted from the driveway. The timing gear 40 provided at one end of the lever 50 is rotated in the direction of arrow b 'with the pivot shaft 3 as a supporting point.

At this time, as shown in FIG. 6 (a) by the protrusion 41 formed on the timing gear 40, the lid member 60 is lifted, that is, the lid member 60 in contact with the protrusion 41. ) End is maintained higher than the height of the guide bushing 21 of the spindle motor (10).

Next, while the optical recording medium D moves in the c direction of FIG. 6 (a) toward the upper side of the turntable 20, the timing gear 40 continuously rotates at a constant angle. At this time, when the optical recording medium reaches the point to be seated, the projection 41 formed in the singer timing gear 40 is inserted into the arc-shaped guide hole 61 of the cover member 60 and at the same time By returning one end to the original state, the optical recording medium D is safely placed on the turntable 20 as shown in FIG. 6 (b).

The guide hole 61 is formed in a circular arc on the cover member 60, and the protrusion 41 is located in the concentric circle with the guide hole 61, so that the protrusion (according to the rotation of the timing gear 40) 41 can be rotated together so that it can be correctly inserted into the guide hole 61.

At the same time, one side of the lid member 60 lifted higher than the guide bushing 21 by the protrusion 41 is returned to its original state (horizontal state), whereby the optical recording medium D collides with the guide bushing 21. Without being securely seated on the turntable 20 as shown in FIG. 6 (b).

As described above, the present invention provides a timing gear having a protruding portion in an access path of an optical recording medium reproducing apparatus, and a guide hole in which the protruding portion provided on the timing gear is rotated at a predetermined angle and inserted into the timing gear by rotation of the timing gear. It is a useful design that can prevent the loss of important information by scratching the optical recording medium by the guide bushing of the spindle motor by providing an optical recording medium damage prevention means made of a cover member to the disk drive.

Claims (3)

A disc drive for recording or reproducing information on a disc, comprising: power transmission means for lifting up and down the pickup to read the information recorded on the disc; And an optical recording medium damage preventing device configured to interlock with the power transmission means for raising and lowering the pickup. The method of claim 1, wherein the optical recording medium damage preventing means has a protrusion formed on the upper portion of the timing gear, the guide member is formed in the cover member to be raised or lowered by the rotation of the protrusion to accommodate the protrusion is received A disk drive having an optical record carrier damage preventing device, characterized in that the member is lowered. 3. The disk drive according to claim 2, wherein the cover member has a guide hole formed in an arc, and the protrusion is located on a concentric circle of the guide hole.