KR0175836B1 - Tray assembly of optical disk changer - Google Patents

Abstract

The present invention relates to a tray structure of an optical disk changer, wherein a deck on which an optical pickup including an objective lens and a turntable are mounted is installed in a housing, and accommodates at least one or more optical disks mounted on the turntable, and includes a front and rear direction with respect to the housing. In the tray structure of the optical disk changer which is slidably moved by the driving means in the vertical direction, the second tray member is separately mounted to be operated separately to the first tray member movably coupled in the front-rear direction and the vertical direction with respect to the housing. And drive means for rotating each of the second tray members in the forward and reverse directions with respect to the first tray member.

Description

Tray Structure of Optical Disc Changer

1 is a perspective view of an optical disc changer according to the prior art.

2 is a plan view of the tray of the optical disc changer according to the present invention in the open state.

Figure 3 (a) (b) is an operation of the tray according to the present invention.

4 is a cross-sectional view of driving means for driving a tray of the present invention.

* Explanation of symbols for main parts of the drawings

1: housing 2: first deck

3: turntable 4: second deck

5: objective lens 6: optical pickup

7: first tray member 8: first optical disk

10: second optical disk 13, 14: second tray member

15, 16: second optical disk

The present invention relates to a tray structure of an optical disc changer, and more particularly, a main unit accommodating at least one or more optical discs and mounted with a sub-tray rotated in a forward and reverse direction so that a selected optical disc can be seated on a turntable. The present invention relates to a tray structure of an optical disc changer which can minimize the external size of the optical disc change by reducing the number of parts of the tray (main-tray).

In general, an optical disc player records a digital signal in a concave-convex shape on a disc, and then projects a light having high condensing power such as a laser beam onto the surface of the disc, and then receives the reflected light to reproduce the recorded signal according to the difference in the amount of light. It is an electronic device.

The optical disc changer includes an optical disc changer for taking out and recording / reproducing an arbitrarily selected optical disc from a magazine accommodating a plurality of optical discs coaxially, and recording the arbitrarily selected optical disc by rotating the tray from a tray for accommodating a plurality of optical discs in the same plane. There is an optical disc changer to play / play.

In the latter optical disc changer, when any one of a plurality of optical discs contained in the tray is selected for recording / playback and then to be exchanged for another optical disc, recording / playback is stopped and the tray is rotated to be replaced with another optical disc for recording / playback. In this way, after recording / reproducing a plurality of optical discs contained in the tray, the trays can be taken out from the main body to replace each optical disc.

In addition, there is an optical disc changer for accommodating two optical discs of different sizes (e.g., laser disc; compact disc) and selecting / recording / reproducing an arbitrary optical disc, each of which has one optical disc. After the recording / playback of the selected optical disc is completed, another optical disc is replaced.

Therefore, such an optical disk changer takes a predetermined time for switching the optical disk, thereby degrading the continuity of recording / playback. In other words, in order to replace an optical disc after recording / playing the optical disc accommodated in the tray, the recording / playback is stopped, the tray is pulled out and replaced, and the recording / playback is performed by inserting the tray again. It requires a predetermined time up to and has an inconvenience of continuously listening to predetermined information recorded on an optical disc.

In view of the above problems, the applicant has filed a patent application No. 5355 (name: disc changer) on March 17, 1994. Prior application patent 5353 can accommodate two types of optical discs of different sizes, and at least one type of optical disc is capable of accommodating a plurality of sheets, and another one of the plurality of optical discs housed in a tray may be The disc changer is designed to improve the continuity of recording / reproducing of the optical disc by enabling the exchange of the optical disc.

That is, patent application 5365 discloses a turntable on the coaxial axis of the spindle motor to rotate the optical disc seated on the first deck 2 mounted on the intermediate side inside the housing 1, as shown in FIG. 3) is installed, the optical pickup 6 including the objective lens (5) on the second deck (4) mounted on the first deck (2) so as to be movable in the radial direction of the optical disk seated on the turntable (3) And a seating surface 9 for receiving the first optical disc 8 in the first tray 7 which is moved by the driving means in the front-rear direction and the vertical direction with respect to the housing 1. The roulette 11 accommodates at least one or more second optical disks 10 smaller than the diameter of the first optical disk 8 in the second tray 12 moving forward and backward with respect to Possibly mounted.

However, the above-mentioned patent application No. 5365 has a tray for accommodating at least one or more optical disks separately formed by the first and second tray members, thereby increasing the number of parts, resulting in the structural complexity of the optical disk changer. In addition to this drop, the cost of production is increased due to the increase in production cost, and the size of the optical disk changer is increased due to the minimum space secured in the vertical direction of the tray for replacing the optical disk accommodated in the tray during recording / reproducing of the selected optical disk. To have.

Accordingly, an object of the present invention is to simplify the tray configuration for accommodating at least one optical disc, thereby reducing the number of parts, reducing the cost and improving workability, and reducing the height in the vertical direction of the tray to reduce the external size of the optical disc changer. It is to provide a tray structure of an optical disk changer to minimize the error.

An object of the present invention described above is that a deck in which an optical pickup including an objective lens and a turntable is mounted is installed in a housing, accommodates at least one or more optical disks seated on the turntable, and is driven forward and backward and up and down with respect to the housing. A tray structure of an optical disc changer that is slidably moved by means, comprising: a second tray member separately mounted to be actuated separately on a first tray member movably coupled in a front-back direction and a vertical direction with respect to the housing; It is achieved by providing a tray structure of the optical disc changer, characterized in that it comprises a drive means for rotating each of the two tray members in the forward and reverse directions with respect to the first tray member.

According to a preferred feature of the invention, the drive means is mounted to the bracket fixed to the first tray member, a plurality of forward and reverse rotation drive motors for driving the second tray member individually, and the drive motor and An intermediate gear meshed with the driving gears connected to each other, and a cam gear part formed on each of the second tray members to mesh with the intermediate gear, and rotating the second tray member with respect to the first tray member. .

Hereinafter, a preferred embodiment of the present invention will be described in detail according to the accompanying drawings.

2 is a plan view of the tray according to the present invention in an open state, FIG. 3 is an operation diagram of the tray according to the present invention, and FIG. 4 is a front sectional view of the driving means for driving the tray according to the present invention.

As shown in FIG. 2 and FIG. 4, the turntable 3 rotates the optical disk mounted on the first deck 2 mounted on the housing 1, and the optical disk mounted on the turntable 3. An optical pickup 6 including an objective lens 5 slidably moved in a radial direction and movably mounted by a driving means in a front-rear direction and a vertical direction with respect to the housing 1, and having a first optical disk 8 on an upper surface thereof. Since the configuration of the first tray member 7 having the receiving seat 9 formed therein is the same as the conventional configuration shown in FIG. 1, the description of the configuration and operation thereof will be omitted, and reference numerals for these The same is shown.

Therefore, in the preferred embodiment of the present invention, a second optical disk having a diameter smaller than that of the first optical disk 8 described above in the first tray member 7 moving in the front-back direction and the vertical direction with respect to the housing 1 described above ( 15 and 16 are mounted to separate the second tray member 13, 14, respectively, the second tray member 13, 14 is a bracket 15 fixed to the first tray member (7) Separately formed and mounted to rotate in the forward and reverse directions with respect to the first tray member 7 by the drive means 16 mounted on the.

As shown in FIG. 4, the above-described driving means 16 is mounted on the bracket 15 so as to drive each of the second tray members 13 and 14 to drive the forward and reverse rotation motors 17 separately. 18, drive gears 23 and 24 connected to pulleys 19 and 20 of drive motors 17 and 18 as belts 21 and 22, respectively, and drive gears 23, respectively. The second tray member (13) and (14) in the second tray when the intermediate gears (25) and (26) have two stages to be engaged with each other and engage with each other; Cam gear portions 27 and 28 are formed on the second tray members 13 and 14 so as to engage and interlock with the intermediate gears 25 and 26 so as to rotate forward and reverse with respect to the member 7. It is configured by.

Referring to the operation of the present invention configured as described above, as shown in Figure 2, by opening the first tray member (7) from the housing (1) by the front and rear drive means of the first tray member (7) The second optical disc 15 having a smaller diameter than the first optical disc 8 accommodated in the first tray member 7 by rotating the second tray members 13 and 14 by the driving means 16 thereof. 16 is accommodated in the second tray member 13, 14, the second optical disk 15, 16 is the first tray member (so that the first optical disk 8 does not interfere when seated on the turntable (3) ( It is covered by the seating surface 9 of 7) to be in the standby state, and then the tray member 7 is closed to the housing 1 by its front and rear driving means.

Thereafter, the first tray member 7 is lowered by its up and down driving means, so that the first optical disk 8 is seated on the turntable 3, and the turntable 3 is driven by the spindle motor. It rotates at a predetermined speed, and the optical pickup 6 mounted on the second deck 4 is moved in the radial direction of the first optical disk 8 seated on the turntable 3, so that the light beam is irradiated through the objective lens 5. In this case, predetermined recording / reproduction is performed.

On the other hand, when the second optical discs 15 and 16 contained in the second tray members 13 and 14 are to be reproduced, as shown in FIGS. 3A and 4, the bracket 15 Power from driving of the driving motor 17 fixed to the transmission is transmitted to the driving gear 23 through the pulley 19 and the belt 21, and the intermediate gear 25 meshed with the driving gear 23 is interlocked. Direction, which causes the cam gear portion 27 of the second tray member 13 to be engaged with the intermediate gear 25 to rotate clockwise around the hinge axis 29. The second optical disk 15 seated on the tray member 13 is positioned at the correct position of the first tray member 7 in the vertical direction of the turntable 32.

Thereafter, the second optical disc 15 accommodated in the second tray member 13 by the driving means in the vertical direction of the first tray member 7 is seated on the turntable 3, and then the first tray member 7 Is further lowered, and as described above, predetermined reproduction can be performed by driving the turntable 3 and the optical pickup 6.

At this time, the second optical disk 16 accommodated in the second tray member 14 is covered by the seating surface 9 of the first tray member 7 in a stand-by state.

On the other hand, as shown in FIGS. 3B and 4, the power of the drive motor 18 fixed to the second tray member 14 is driven by the belt 22-drive gear 24-. The intermediate gear 26 is sequentially transmitted to the cam gear portion 28 of the second tray member 14, whereby the second tray member 14 is rotated counterclockwise around the hinge axis 29. Rotate to position the first tray member 7 in the correct position. Subsequently, the second optical disc 16 can be reproduced by driving the turntable 3 and the optical pickup 6.

As described above, the tray structure of the optical disc changer according to the present invention can accommodate two types of discs, small and large, and improves workability by reducing the number of parts of the tray capable of continuously reproducing the small disc. By reducing the height in the vertical direction of the optical disk changer can be reduced.

Claims (2)

An optical disk changer including an optical pickup including an objective lens and a deck on which a turntable is mounted is installed in the housing, and accommodates at least one or more optical disks seated on the turntable and is slidably moved by the driving means in the front and rear directions and the vertical direction with respect to the housing. The tray structure of claim 2, wherein the first tray member is coupled to the first tray member movably coupled to the housing in the front-rear direction and the vertical direction, respectively, and the second tray member and each of the second tray member A tray structure of an optical disc changer, comprising drive means for rotating the tray member in a forward and reverse direction. According to claim 1, wherein the drive means, a plurality of forward and reverse rotation drive motors mounted on a bracket fixed to the first tray member for driving the second tray member individually, respectively connected to the drive motor And an intermediate gear meshed with the drive gear and a cam gear portion formed on each of the second tray members to mesh with the intermediate gear to rotate the second tray member with respect to the first tray member. The tray structure of the optical disc changer characterized by the above-mentioned.