KR20040013590A - Recorder for various type of disc - Google Patents

Abstract

The present invention provides a disc compatible recording and reproducing apparatus equipped with a plurality of pickups capable of recording and reproducing signals of different discs on both sides about a rotation axis of a disc so as to reciprocally drive in a direction perpendicular to the rotation axis. A blade disk and a cartridge disk compatible pickup mounted at one side; A blade disc pick-up mounted on the opposite side of said compatible pickup; An anti-interference means mounted so that the disc-only pick-up leaves the recording / playback position so as to prevent the interference of the blade-only pick-up and the cartridge when the cartridge disc is mounted; The present invention provides a disc compatible recording and reproducing apparatus capable of using both a raw disc and a cartridge disc while taking a structure in which two pickups are mounted to enable compatible recording and reproducing of heterogeneous discs.

Description

Disc compatible record and playback device {RECORDER FOR VARIOUS TYPE OF DISC}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc compatible recording and reproducing apparatus, and in particular, to a recording and reproducing apparatus equipped with a plurality of pickups in order to enable compatible use of discs having different recording and reproducing methods. And a device for preventing interference between the pickup and the cartridge when replacing the disc of the cartridge type.

1 to 6 show the structure of a conventional cartridge disc and a disc compatible recording and reproducing apparatus, in which FIG. 1 is a plan view showing a state in which a disc is mounted in the recording and reproducing apparatus, and FIG. 2 is a closed state of the disc cartridge. 3 is a cross-sectional view taken along line AA of FIG. 2, FIG. 4 is a cross-sectional view taken along line BB of FIG. 2, FIG. 5 is a top view showing open state of the disc cartridge, and FIG. One side cross section.

As shown, the disc compatible recording and reproducing apparatus has two pickups 6 and 7 capable of recording and reproducing signals of different discs on both sides about the rotation axis of the spindle motor 13, which is the rotation axis of the disc 14, respectively. The structure is mounted so as to be reciprocating in a direction perpendicular to the rotation axis.

The sled base 3 is provided with pickup transport mechanisms 11 and 12 for driving and driving the two pickups 6 and 7, and the pickups 6 and 7 are driven by the power of the pickup transport mechanisms 11 and 12. Is reproduced or recorded along the feed shafts 8 and 9 supported by the feed shaft supports 10 and 22 to the inner and outer circumferences of the disc 14, respectively.

The disk 14 may be a blade disk or a cartridge disk. In the case of a blade disk, since there is no problem with respect to the mounting of the disk and the transfer drive of the pickup, the disk 14 may be mounted in the following. Only describe.

The operation in the case where the cartridge disk is mounted in the conventional recording and reproducing apparatus will be described below.

When the opening command of the tray 2 is issued on the recording / playback apparatus, the tray 2 is transported to the outside of the main base 1 by the tray transport mechanism 18, and protrudes, and the disc cartridge having the disk 14 incorporated therein. After seating (4) on the tray (2), when the closing command of the tray (2) is issued, the tray (2) enters into the main base (1) again and the spindle motor (13) and the disk (14). The axis of rotation is transported to the same position.

Subsequently, when the disk 14 in the disk cartridge 4 is properly seated on the turntable 19 of the spindle motor 13, the spindle motor 13 starts to rotate.

When the rotation of the disc 14 starts, the two pickups 6 and 7 determine the type of the disc, and the disc signal is reproduced or recorded by the pickup suitable for the type of the seated disc. On the other hand, the pickup which is not suitable for the type of seated disc is moved to a predetermined position so as not to interfere with the operation of another pickup, and is in a standby state.

On the other hand, as shown in Figs. 2 and 5, in the conventional disc cartridge 4, an opening 17 is formed on the opposite side of the pickup side so that the pickup is adjacent to the surface of the disk during the reciprocating drive, and the opening and closing of the disc cartridge 4 is opened and closed. The shutter 16 is formed and attached so that it may be.

Therefore, when the disc cartridge 4 is mounted in the recording / reproducing apparatus, the shutter 16 is opened by automatic or manual operation so that the pickup information is reciprocally driven near the surface of the disc through the opening 17, and thus the information of the disc. Can be played back or recorded.

By the way, such a disc cartridge has no problem when used in a recording / playback apparatus equipped with only one pickup, but is used in a disk-compatible recording / playback apparatus in which pickups are installed on both sides of the spindle motor 13. In this case, the following problems are raised.

That is, as shown in FIG. 6, since the first pickup 6 located at the portion where the opening 17 is formed may be adjacent to the disk 14 through the opening 17, a similar problem as in the conventional case. Although the second pickup 7 located at the portion where the opening 17 is not formed cannot be adjacent to the disc 14, it prevents the disc cartridge 4 from entering the recording / playback apparatus.

Therefore, in the case where the two pickups are mounted as described above to enable compatible recording and reproducing of heterogeneous disks, there is no problem in the case of using the raw disks. As a result, such problems have been pointed out as limitations in implementing a disc compatible recording and reproducing apparatus.

Disclosure of the Invention The present invention solves the above problems and takes a structure in which two pickups are mounted to enable compatible recording and reproduction of heterogeneous discs, while a disc compatible recording of a structure capable of using both a blade disc and a cartridge disc. It is an object to provide a reproducing apparatus.

1 to 6 show the structure of a conventional cartridge disc and a disc compatible recording and reproducing apparatus,

1 is a plan view showing a state where a disc is mounted in a recording / playback apparatus;

2 is a plan view showing the disc cartridge in a closed state

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

4 is a cross-sectional view taken along the line B-B of FIG.

5 is a plan view showing an open state of the disc cartridge;

Fig. 6 is a side sectional view showing a state where a disc is mounted in a recording / playback apparatus;

7 to 11 illustrate one embodiment of the present invention.

7 is a plan view

8 and 9 are side cross-sectional views showing the operation when the cartridge disk is mounted;

10 and 11 are side cross-sectional views showing the operation when the blade disc is mounted;

12 and 13 are side cross-sectional views showing the operation of another embodiment of the present invention.

14 and 15 illustrate another embodiment of the present invention.

14 is a plan view

15 is a side cross-sectional view

** Description of the symbols for the main parts of the drawings **

4 cartridge 14 disk

30: compatible pickup 40: blade disc only pickup

50: interference prevention means 51: auxiliary pickup support plate

52: support shaft 53: cam

54: evacuation space 55: auxiliary pickup feed shaft

In order to achieve the above object, the present invention provides a disk compatible with a plurality of pickups capable of recording and reproducing signals of heterogeneous discs respectively on both sides of the rotating shaft of the disk so as to be reciprocally driven in a direction perpendicular to the rotating shaft. A recording and reproducing apparatus, comprising: a blade disk and a cartridge disk compatible pickup mounted on one side of the rotating shaft; A blade disc pick-up mounted on the opposite side of said compatible pickup; An anti-interference means mounted so that the disc-only pick-up leaves the recording / playback position so as to prevent the interference of the blade-only pick-up and the cartridge when the cartridge disc is mounted; A disk compatible recording and reproducing apparatus is provided.

In addition, the anti-interference means includes an auxiliary pickup support plate on which the blade-only pickup is mounted; A support shaft for rotatably mounting the auxiliary pickup support plate to the main body; A cam mounted against the auxiliary pick-up support plate such that the blade-only pickup picks up a positional shift between the recording and reproducing position and the disengaging position by a rotational drive about the support shaft; A motor for applying rotational force to the cam; A control unit for controlling the rotation of the motor; It is preferable to include.

In addition, the axial direction of the support shaft may be perpendicular to or parallel to the entry and exit direction of the disk.

In addition, the interference preventing means includes an evacuation space of the blade-only pick-up pickup formed so that the blade-only pick-up does not come into contact with the cartridge when the cartridge disc is mounted; An auxiliary pick-up feed shaft extended to guide the blade-only pick-up in the evacuation space; You may take the structure to include.

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

7 to 11 show one embodiment of the present invention, FIG. 7 is a plan view, FIGS. 8 and 9 are side cross-sectional views showing operations when a cartridge disk is mounted, and FIGS. 10 and 11 are blade disks. Side cross-sectional view showing the operation in the case where is mounted.

12 and 13 are side cross-sectional views showing the operation of another embodiment of the present invention.

14 and 15 show yet another embodiment of the present invention, FIG. 14 is a plan view and FIG. 15 is a side cross-sectional view.

As shown, the disk compatible recording and reproducing apparatus according to the present invention comprises a plurality of pickups capable of recording and reproducing signals of different discs on both sides with respect to the rotational axis of the spindle motor 13, which is the rotational axis of the disk 14. 30 and 40 are the same as the conventional structure in that they are mounted reciprocally in a direction perpendicular to the rotational shaft.

However, the blade disk and cartridge disk compatible pickup (30) mounted on one side of the rotary shaft; A blade-only pickup 40 mounted opposite the compatible pickup 30; To prevent interference between the blade disc dedicated pickup 40 and the cartridge 4 when the cartridge disc is loaded, the interference preventing means 50 mounted so that the disc dedicated pickup 40 leaves the recording / playing position; It is characterized in that it is configured to include.

That is, in a structure in which two pickups are mounted in one recording and reproducing apparatus, one is to be positioned in the opening 17 of the cartridge 4 while the other is a blade disc and a cartridge disc compatible pickup, while the other is a blade disc. The dedicated pickup is positioned at the recording / playback position only when recording and reproducing the blade disc, and is positioned at the retracted position when recording and reproducing the cartridge disc, thereby preventing interference between the cartridge 4 and the pickup, thereby making it much compatible with the type of disc. It is possible.

Here, the interference preventing means 50 may be any structure as long as the blade-only pickup 40 is out of the recording and playback position when the cartridge disk is mounted, but the following two embodiments can be easily implemented. Will be described.

As shown in Figs. 7 to 13, the interference preventing means 50 includes an auxiliary pickup support plate 51 on which a blade disc dedicated pickup 40 is mounted; A support shaft 52 rotatably mounting the auxiliary pickup support plate 51 to the main body; A cam 53 mounted against the auxiliary pick-up support plate 51 such that the blade-only pick-up 40 causes the positional change of the recording and reproducing position and the disengaging position by rotational drive about the support shaft 52; A motor (not shown) for applying rotational force to the cam 53; A controller (not shown) for controlling rotation of the motor; It can be configured to include.

That is, as shown in Figs. 8 and 9, when the cartridge disk is mounted, as the auxiliary pickup support plate 51 is continuously lifted at the time of mounting and after mounting of the disk by driving the cam 53, The blade-only pick-up 40 has a structure in which it is located in the disengaged position. Therefore, it is possible to prevent the interference between the blade disk-only pickup 40 and the cartridge 4.

On the other hand, as shown in Figs. 10 and 11, when the blade disk is mounted, as the auxiliary pickup support plate 51 is raised by the drive of the cam 53 and lowered again, the blade disc dedicated pickup 40 Takes a structure located at the recording / playback position. Therefore, the recording and reproducing operation can be performed by driving the pickups 30 and 40 necessary according to the type of the disc.

As shown in Figs. 8 to 11, the axial direction of the support shaft 52 may have a structure perpendicular to the entry and exit direction of the disk 14, and as shown in Figs. 12 and 13, the support shaft The axial direction of 52 may have a structure parallel to the entry and exit direction of the disk 14.

The operation of the above embodiment will be described below.

When the opening command of the tray 2 is issued on the recording / reproducing apparatus, the tray 2 is transferred to the outside of the main base 1 by the tray conveying mechanism 18 and protrudes, and is driven by the cam driving of the cam 25. The sled base 3 is lifted so that the pickups 30 and 40 are separated from the recording / playback position.

When the disc cartridge 4 with the disc 14 embedded therein is seated in the tray 2 and the closing command of the tray 2 is issued, the tray 2 again enters the main base 1 and the spindle motor. 13 and the disk 14 are conveyed to the same position as the rotation axis.

When the cartridge recognition sensor 26 recognizes that the cartridge disk is mounted, the drive of the cam 53 is stopped by the controller (not shown), and the auxiliary pickup support plate 51 is stopped at the disengaged position. 40 is also stopped at the disengaged position.

Subsequently, when the disk 14 in the disk cartridge 4 is properly seated on the turntable 19 of the spindle motor 13, the spindle motor 13 starts to rotate.

When the rotation of the disk 14 starts, the raw disk and the cartridge disk compatible pickup 30 record and reproduce the signal of the disk through the opening 17 of the cartridge 4.

When the blade disc is mounted, as the cartridge recognition sensor 26 does not react, the controller (not shown) drives the cam 53 to lower the auxiliary pickup support plate 51, and the blade disc dedicated pickup 40. Like the compatible pickup 30, the recording and reproducing position is also located.

The two pickups 30 and 40 determine the type of the disc, and perform recording and reproducing of the disc signal by the pickup suitable for the type of the seated disc.

Another embodiment of the present invention, as shown in Figure 14 and 15, the interference prevention means 50, the blade disk dedicated pickup 40 is in contact with the cartridge 4 in the state where the cartridge disk is mounted; In order not to form the evacuation space 54 of the blade-only pickup, and to extend the auxiliary pickup feed shaft 55 to guide the blade-only pickup 40 to the evacuation space 54.

That is, the auxiliary pickup feed shaft 55 for forming the free space 54 corresponding to the length L at the rear of the mounting portion of the cartridge 4 and guiding the transfer of the blade-only pick-up 40 to the free space 54. By forming the cartridge disc, when the cartridge disc is mounted, the blade-only pick-up 40 can be evacuated to the free space 54, thereby preventing interference between the pickup and the cartridge.

The present invention provides a disc compatible recording and reproducing apparatus having a structure in which two pickups are mounted to enable compatible recording and reproducing of heterogeneous discs, while being capable of using both a raw disc and a cartridge disc.

Claims (5)

A disk compatible recording and reproducing apparatus, in which a plurality of pickups capable of recording and reproducing signals of different discs are respectively mounted on both sides of a rotation axis of a disc so as to reciprocally drive in a direction perpendicular to the rotation axis. A blade disk and cartridge disk compatible pickup mounted on one side of the rotating shaft; A blade disc pick-up mounted on the opposite side of said compatible pickup; An anti-interference means mounted so that the disc-only pick-up leaves the recording / playback position so as to prevent the interference of the blade-only pick-up and the cartridge when the cartridge disc is mounted; Disc compatible recording and reproducing apparatus comprising. The method of claim 1, The interference preventing means An auxiliary pickup support plate on which the blade disc pickup is mounted; A support shaft for rotatably mounting the auxiliary pickup support plate to the main body; A cam mounted against the auxiliary pick-up support plate such that the blade-only pickup picks up a positional shift between the recording and reproducing position and the disengaging position by a rotational drive about the support shaft; A motor for applying rotational force to the cam; A control unit for controlling the rotation of the motor; Disc compatible recording and reproducing apparatus comprising a. The method of claim 2, And the axial direction of the support shaft is perpendicular to the direction of entry and exit of the disc. The method of claim 2, And the axial direction of the support shaft is parallel to the entry and exit direction of the disc. The method of claim 1, The interference preventing means An evacuation space of the blade disk-only pickup formed such that the blade disk-only pickup does not come into contact with the cartridge when the cartridge disk is mounted; An auxiliary pick-up feed shaft extended to guide the blade-only pick-up in the evacuation space; Disc compatible recording and reproducing apparatus comprising a.