KR100590228B1 - Structure of deck for optical disc player having vertically lifting apparatus - Google Patents

Abstract

A deck structure for an optical disc player employing the disclosed vertical lifting device includes: a deck structure for an optical disc player having a base, a tray slidably mounted to the base, and an optical pickup device for optically picking up an optical disc disposed on the tray. A driving motor installed at one side of the optical pickup device; A gear pulley connected to the driving motor to rotate by receiving the rotational force of the driving motor and having a protruding gear protruding from one surface thereof; A cam gear set having a driving gear meshed with the protruding gear and rotating according to the rotation of the gear pulley, and a driven gear having a cam portion formed on one surface of the cam by rotating with the driving gear; A slider installed at one side of the driven gear and sliding back and forth by the cam part of the driven gear, and a rack gear formed at right and left sides; A pinion gear meshed with the rack gear of the slider to rotate; It is installed on the left and right of the optical pickup device so as to slide back and forth according to the rotation of the pinion gear, vertical lifting means for vertically lifting the optical pickup device in its sliding operation. According to the present invention, there is an advantage that can make the product slim.

Optical pickup device, DVD, optical disc

Description

Deck structure for optical disc player employing vertical lifting device {STRUCTURE OF DECK FOR OPTICAL DISC PLAYER HAVING VERTICALLY LIFTING APPARATUS}

1 is an exploded perspective view schematically illustrating a configuration of a multi changer in a general optical disc player.

2 is a side view showing the optical pickup device of FIG.

Figure 3 is a perspective view schematically showing the configuration of a deck structure for an optical disc player employing a vertical lifting device according to the present invention.

4 is a partial bottom perspective view seen from "A" in FIG.

FIG. 5 is a detailed perspective view of the bottom of the drive gear of FIG. 3; FIG.

6 is a detailed perspective view of the slider of FIG. 3.

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

10. Base

20. Optical pickup device

31. Drive motor

32. Belt

33. Gear Pulley

40. Drive Gear

50. Follower Gear

60. Slider

71. Pinion Gear

80. Cam Slider

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deck structure for an optical disc player employing a vertical elevating device, and more particularly, to a deck structure for an optical disc player employing a vertical elevating device for contributing to slimming of an optical disc multi changer.

For example, an optical disc player for reproducing an optical disc such as a CD or a DVD is an apparatus provided with an optical pickup device for reproducing recording information on an optical disc which is an optical recording medium. The optical disc is mounted on a tray and loaded into an optical disc deck. When the optical disk is rotated, the optical pickup device mounted at the bottom of the tray is transferred in the radial direction of the optical disk to reproduce data recorded on the optical disk.

On the other hand, such an optical disc player has an optical disc single player for seating only one optical disc in a tray, and an optical disc multiple changer for seating a plurality of optical discs in a tray and selectively playing an optical disc to be played. There is.

1 is an exploded perspective view schematically showing the configuration of a general optical disc multi-changer as described above.

Referring to FIG. 1, the optical disc multi changer 100 mounts a plurality of optical discs and selectively reproduces the optical discs by the optical pickup device 120. In general, a front loading method is employed. This will be described in more detail.

 The optical disk multi changer 100 includes a main body 110, a tray 150 provided to be housed inside the main body 110, and a roulette installed on the tray 150 so as to be rotatable and to which a plurality of optical disks are seated. an optical pickup device 120 for optically picking up any desired disk among the optical disks seated on the roulette 160, and an optical pickup device provided above the optical pickup device 120 A clamper support 131 for supporting the clamper 130 for clamping the optical disk between the 120 (120).

In addition, the optical disc multi changer 100 includes a tray transfer device 140 for loading or unloading the tray 150 into the main body 110.

In the optical disc multi changer 100, a lift lever is rotated when a cam installed on one side of the optical pickup device 120 rotates in the conventional single drive motor type to achieve chucking / unchucking of the disc. The one-point system of the hinge rotation system which raises and lowers the boss of the front surface of the (lift lever) 121 is adopted.

As shown in FIG. 2, the optical disk multi changer 100 according to the related art, which is configured as described above, is a lift installed at the side of the optical pickup device 120. The lever 121 raises and lowers the optical pickup device 120 of the changer 100 at a constant angle α. Therefore, when the disc 101 is evacuated with a certain margin until the optical disc 101 reaches the playing position, the disc seating part of the optical pickup device 120 inclined at a predetermined angle α. The top end of 121 must not be in contact with the bottom of the disc 101.

At this time, since the disc seating portion 121 is inclined at a predetermined angle, the disc seating portion 121 has a loss value rather than vertically up / down. That is, the overall height of the deck mechanism is increased by the lifting operation inclined, and eventually there is a problem that the size of the set on which the deck mechanism is mounted increases.

The present invention has been made to solve the above problems, the optical disc player deck employing the vertical lifting device to minimize the height of the deck mechanism by operating the lifting operation of the optical pickup device vertically to reduce the overall height of the deck mechanism The purpose is to provide a structure.

The deck structure for an optical disc player employing the vertical lift apparatus of the present invention for achieving the above object comprises an optical pickup apparatus for optical pickup of a base, a tray slidably mounted to the base, and an optical disc disposed on the tray. A deck structure of an optical disc player, comprising: a drive motor provided at one side of the optical pickup device; A gear pulley connected to the driving motor to rotate by receiving the rotational force of the driving motor and having a protruding gear protruding from one surface thereof; A cam gear set having a driving gear meshed with the protruding gear and rotating according to the rotation of the gear pulley, and a driven gear having a cam portion formed on one surface of the cam by rotating with the driving gear; A slider installed at one side of the driven gear and sliding back and forth by the cam part of the driven gear, and a rack gear formed at right and left sides; A pinion gear meshed with the rack gear of the slider to rotate; And vertically lifting means installed on each of left and right sides of the optical pickup device so as to slide back and forth according to the rotation of the pinion gear, and vertically lifting the optical pickup device vertically in the sliding operation thereof.
The bottom portion of the drive gear of the cam gear set is characterized in that the planetary gear is engaged with the protruding gear and rotated to the left and right of the protruding gear directly receiving the driving force from the gear pulley.

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

FIG. 3 is a perspective view schematically showing the structure of a deck structure for an optical disc player employing a vertical lift apparatus according to the present invention, and FIG. 4 is a bottom perspective view of FIG. 3 seen from "A" of FIG.

3 and 4, the deck structure for an optical disc player employing the vertical elevating device according to the present invention is provided with a base 10 and slidably mounted on the base 10 so as to provide a tray (150 of FIG. 1). Optical pickup device 20 for optically picking up an optical disk (see 101 in FIG. 2) disposed on the tray, a drive motor 31 provided on one side of the optical pickup device 20, and the drive motor. Connected to the rotating shaft of the 31 and the belt 32 is rotated by receiving the rotational force of the drive motor 31, as shown in Figure 5, a gear pulley 33 is formed with a protruding gear 33a protruding on one surface It is configured to include.

In the deck structure for the optical disc player employing the vertical elevating device according to the present invention, the drive gear 40 is engaged with the protruding gear 33a in accordance with the rotation of the gear pulley 33, and the drive gear 40 And a cam gear set (X) having a driven gear (50) having a cam portion (51) formed of a cam curve on one surface thereof to rotate with each other, and on one side of the driven gear (50) of the cam gear set (X). And a slider 60 which slides back and forth by the cam part 51 of the driven gear 50, and the rack gear 61 is formed on the left and right sides thereof, and is engaged with the rack gear 61 of the slider 60 to rotate. The pinion gear 71 and the pinion gear 71 are installed on the left and right sides of the optical pickup device 20 so as to slide back and forth according to the rotation of the pinion gear 71, and the vertical lift to vertically lift the optical pickup device 20 by the sliding operation thereof. It comprises a means.

A planet gear (planet) which is engaged with the protruding gears (33a) on the left and right sides of the protruding gears (33a) by receiving driving force directly from the gear pulley (33) at the bottom of the drive gear (40) of the cam gear set (X). gear 41 is provided.

In addition, as shown in FIG. 6, the slider 60 is provided with a protrusion member 62 protruding upward to be coupled to the cam portion 51 of the driven gear 50 of the cam gear set X. A sliding groove 63 is formed such that the slider 60 slides back and forth by a predetermined distance at a predetermined position by a screw 102 or the like mounted on the base 10.

At this time, the drive gear 40 and the driven gear 50 of the cam gear set (X) are formed with the same gear ratio, and are provided to rotate in opposite directions.

The vertical lifting means includes a sliding pinion 72 formed at the bottom thereof on the same axis as the pinion gear 71 and rotating in the same manner as the pinion gear 71, and engaged with the sliding pinion 72 so as to engage with the sliding pinion 72. At least one rack unit 81 formed on the inner side of the front end portion so as to move forward and backward according to the rotation of the 72 and the optical pickup device 20 while guiding the optical pickup device 20 when the optical pickup device 20 is elevated. An optical pickup device having a lifting guide hole 82 formed above and fitted into the cam slider 80 provided on the left and right sides of the optical pickup device 20 and the lifting guide hole 82 of the cam slider 80 to slide. The boss 21 is provided to allow the 20 to be elevated, and includes a lift lever 22 mounted therein with the optical pickup device 20 therein.

The vertical lifting means configured as described above is provided on the base 10, and one side of the cam slider 80 is provided with a feed limiting means for limiting forward and backward transfer of the cam slider 80. The transfer limiting means includes a through hole 83 formed at a predetermined length on one side of the cam slider 80, and a protrusion 11 protruding from the base 10 so as to be fitted into the through hole 83. .

The drive motor 31, the gear pulley 33, the cam gear set X, and the like are installed in the tray (see 150 of FIG. 1). Accordingly, as shown in FIG. 3, a cam portion 40a having a cam curve is formed on the driving gear 40 of the cam gear set X to be used for sliding the tray.

Referring to the operation of the optical disc player deck structure employing the vertical lifting device according to the present invention having the configuration as described above is as follows.

Referring to the drawings, first, when the drive motor 31 is rotated, the power is transmitted to the gear pulley 33 through the belt 32, the gear pulley 33 is engaged with it as it rotates The two planet gears 41 rotate, and the drive gear 40 made of the cam gear rotates with the rotational force.

The driven gear 50 meshed with the drive gear 40 has the same gear ratio as the drive gear and rotates in the opposite direction to the drive gear so that the slider moves along the curve of the cam portion 51 of the driven gear 50. 60 slides back and forth on the base 10. In addition, as the two pinion gears 71 and the sliding pinions 72 engaged with the rack gears 61 of the slider 60 rotate, the cam sliders 80 arranged on the left and right sides of the optical pickup device 20 are horizontal. Exercise

In addition, as the cam sliders 80 on the left and right sides move in the same stroke, the lifting lever 22 moves along the cam curves formed on the cam gear set X, respectively. Accordingly, the optical pickup device 20 coupled to the lift lever 22 performs vertical lifting and chucking and unchucking.

As described above, the deck structure for an optical disc player employing the vertical lift apparatus according to the present invention has the following effects.

As described above, in the related art, when the lift lever is unchucked and the lift lever is unchucked, the optical pickup device has a constant angle, so that the overall height of the mechanism becomes higher when viewed from the lowermost surface. It was.

However, when the vertical lifting operation is applied by applying the present invention, it is possible to perform the unchucking operation with only a minimum descending without inclination, so that the overall height of the mechanism can be reduced, resulting in a slim product. It can contribute to the diversification of design.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (8)

A deck structure of an optical disc player comprising a base, a tray slidably mounted to the base, and an optical pickup device for optically picking up an optical disc disposed on the tray. A drive motor installed at one side of the optical pickup device; A gear pulley connected to the driving motor to rotate by receiving the rotational force of the driving motor and having a protruding gear protruding from one surface thereof; A cam gear set having a driving gear meshed with the protruding gear and rotating according to the rotation of the gear pulley, and a driven gear having a cam portion formed on one surface of the cam by rotating with the driving gear; A slider installed at one side of the driven gear and sliding back and forth by the cam part of the driven gear, and a rack gear formed at right and left sides; A pinion gear meshed with the rack gear of the slider to rotate; And vertically lifting means installed on each of left and right sides of the optical pickup device so as to slide back and forth according to the rotation of the pinion gear, and vertically lifting the optical pickup device vertically in the sliding operation thereof. At the bottom of the drive gear of the cam gear set, an optical disc player employing a vertical elevating device is provided with planet gears engaged with the protruding gears on the left and right sides of the protruding gears directly receiving the driving force from the gear pulley. Deck structure. delete The method of claim 1, The slider is provided with a projection member protruding upward to be coupled to the cam portion of the driven gear, the sliding groove is formed so that the slider is slid back and forth by a predetermined distance at a predetermined position for an optical disc player employing a vertical lifting device Deck Structure. The method of claim 1, And the drive gear and the driven gear of the cam gear set are formed with the same gear ratio and are provided to rotate in opposite directions to each other. The method of claim 1, The vertical lifting means, A sliding pinion formed at a bottom thereof coaxially with the pinion gear and rotating in the same manner as the pinion gear; A rack unit formed on an inner surface of a front end portion to be engaged with the sliding pinion to be moved forward and backward according to the rotation of the sliding pinion, and at least one lifter configured to support the optical pickup device and to guide the optical pickup device when the optical pickup device is elevated; Cam sliders provided with guide holes and installed at left and right sides of the optical pickup device; And a lift lever fitted into the elevating guide hole to elevate the optical pickup device, and a lift lever mounted therein, wherein the optical pickup device is mounted therein. rescue. The method of claim 5, The vertical elevating means is installed on the base, the deck structure for an optical disc player employing a vertical elevating device, characterized in that the transfer limiting means for limiting the forward and backward transfer of the cam slider on one side of the cam slider. The method of claim 6, The transfer limiting means is a deck structure for an optical disc player employing a vertical lifting device, characterized in that consisting of a through hole formed in a predetermined length on one side of the cam slider and a projection formed protruding on the base to be fitted to the through hole. The method of claim 1, And said drive motor, said gear pulley and said cam gear set are mounted on said tray.

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