JPH06105529B2 - Composite disc player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to the reproduction of a record disc in which a signal is mechanically read by a needle type pickup and a disc in which a signal is optically read by an optical pickup. More specifically, the present invention relates to an autochanger-type composite disc player for automatically exchanging a disc to be reproduced from a plurality of discs.

(B) Conventional Technology An optical disc player is known in which a signal recorded on a disc is optically read using an optical pickup. As the optical disc player, a CD player that handles digital signals for audio is well known, but as the CD player, there is an auto changer type that can automatically exchange a disc to be reproduced. The autochanger type CD player is convenient because it can continuously play back songs from a plurality of discs without having to manually replace the discs, and also allows continuous playback for a long time.
As the automatic changer type CD player, for example, as disclosed in Japanese Patent Laid-Open No. 62-192062, a disc table can be rotated about a rotation axis and a plurality of disc tables can be arranged on the rotation table. It is known that the disc can be placed and the disc table is rotated to move a desired disc to a reproducing position where a pickup or a turntable is provided for reproduction. Such an autochanger type CD player does not require a complicated mechanism as compared with a type in which a plurality of discs are stored in a loaded state and a desired disc is pulled out of the discs for reproduction. This is advantageous in that the configuration is simple, the manufacturing cost is low, and the time required for disc replacement is shortened.

(C) Problems to be Solved by the Invention By the way, in Japan, CD players are widely used in place of so-called record players, which mechanically read a record board recorded with analog signals by a needle type pickup. There is.

However, there are cases where a record that is already owned is played, and overseas, in many countries, the CD player has not yet spread and the record player is the main audio source device. Therefore, a record player is still needed, and a stereo set requires both a CD player and a record player.

In view of the above points, the present invention provides a composite disc player that combines a record player and a CD player.

(D) Means for Solving the Problems The present invention provides a turntable on which a record board whose signals are mechanically read by a needle-type pickup is placed, and which is optically smaller than the record board by an optical pickup. A plurality of disc mounting portions on which discs from which signals are read are mounted are provided around the rotation axis of the turntable, and a reproducing device for reproducing the discs mounted on the disc mounting portions is provided. A plurality of discs are selected by moving a disc mounted on a predetermined disc mounting portion to a reproduction position where the reproduction device can reproduce by using a motor for rotating the turntable when reproducing the record disc. I try to regenerate it.

(E) Action In the present invention, when a record player and a CD player are combined, a plurality of optical discs (CDs) having a diameter smaller than that of the record board can be placed on the turntable of the record player section. The turntable is rotated by using a motor for rotating the turntable at the time of reproducing the record board so that the plurality of optical discs can be selectively moved to the reproducing position.

(F) Embodiment FIG. 1 is a plan view showing an embodiment of the present invention. (1) is a cabinet, (2) is a center shaft supported by the cabinet (1), and ( 3 ) is the center shaft. (2)
A turntable on which a record board (4) mechanically recorded with an analog signal is mounted, which is rotatably attached to the cabinet (1) and is rotatably attached to the cabinet (1),
( 5 ) is supported so as to be horizontally rotatable around the vertical axis (6) of the cabinet (1), and is also supported by a tone arm (8) which is vertically rotatable around the horizontal axis (7). A pickup mechanism including a needle type cartridge (9) provided at the tip of the tone arm (8), a motor (10) serving as a drive source for rotating the turntable ( 3 ),
(11) the rotation shaft of the motor (10) pulley fixed to (10a) (12) and the turntable concentrically formed rim of the turntable on the lower surface of (3) (3) (13) It is a rubber belt stretched between and.

On the turntable ( 3 ), five recessed CD mounting portions (15) on which the CDs (14) are mounted are continuously arranged around the center shaft (2). And the cabinet (1)
A reproducing device ( 16 ) for reproducing the CD (14) is provided therein, and the reproducing device ( 16 ) includes a CD turntable (17) for rotating the CD (14), An optical pickup (18) for reading out a signal recorded on the CD (14) and a feeding mechanism ( 1 ) for feeding the optical pickup (18) in the radial direction of the CD (14).
9 ) and.

In addition, in the cabinet (1), a clamp mechanism ( 2 ) for holding the CD (14) moved to the reproduction position where it can be reproduced by the reproduction device ( 16 ) on the CD turntable (17) by pressure bonding.
0 ) is provided, and the clamp mechanism ( 20 ) is rotatably supported about a rotary shaft (20a) located substantially diagonally to the vertical axis (6) of the tone arm (8). Has been done.

Next, a method of using the composite disc player configured as described above will be described.

First, when playing a record board, the clamp mechanism ( 20 )
As shown by the alternate long and short dash line in FIG. And
The center hole of the record board (4) is inserted into the center shaft (2) and the record board (4) is placed on the turntable ( 3 ). Here, the reproduction device (16) is vertically movably supported as a rotation center axis of the shaft (21), but the playback device (16) before rotating to the non-reproducing position a clamping mechanism (20) It is configured to descend and be displaced to a position where the CD turntable (17) and the optical pickup (18) do not hinder the rotation of the turntable ( 3 ). Therefore, when the clamp mechanism ( 20 ) is rotated to the non-reproducing position and the motor (10) is energized to rotate the pulley (12), the rotation of the pulley (12) is changed to the belt (11). because it is transmitted to the rim (13) of the turntable (3) through, you can rotate the turntable (3). Therefore, if the tone arm (8) is rotated and the record board (4) is traced by the needle of the cartridge (9), the record board (4) can be reproduced by the pickup mechanism ( 5 ). .

Since the CD mounting part (15) is formed lower than the other parts, the record board (4) is formed with the star-shaped central part of the turntable ( 3 ) and the CD mounting part (15). Supported with no peripheral portion.

On the other hand, when reproducing a CD, 1 to 5 CDs are mounted on the CD mounting section (15) according to the number of CDs to be reproduced. in this case,
Rotate the clamp mechanism ( 20 ) to the non-playback position and
The CD (14) can be placed on the placing part (15). When the CD (14) is placed on the desired CD placement section (15), the clamp mechanism ( 20 ) is rotated to the reproduction position shown by the solid line in FIG. Here, as shown in the partial sectional view from the axial direction of the shaft (21) for pivotally supporting the reproducing device ( 16 ) in FIG. 2, the clamp mechanism ( 20 ) has a CD (1
There is a chuck member (22) for holding the 4) on the CD turntable (17).
2) is arranged so that the lower surface is higher than the upper surface of the CD (14) placed on the CD placing section (15). For that reason,
If the playback device ( 16 ) is lowered as shown in Fig. 2,
The turntable ( 3 ) can be rotated even when the clamp mechanism ( 20 ) is displaced to the reproduction position. Therefore, when selecting a CD to be played, the turntable ( 3 ) is rotated while the playback device ( 16 ) is lowered, and the desired CD (14) mounted on the CD mounting portion (15) is selected. CD
Is moved to a reproduction position where reproduction can be performed by the reproduction device ( 16 ). In this case, the rotation of the turntable (3) by energizing the motor (10) is the same as the motor for rotating the record board (4) during reproduction of the record board (4).

When the desired CD has been moved to the playback position, the playback device ( 1
6 ) Ascend. The regeneration device ( 16 ) has a shaft (21)
It is lifted by rotating in the direction of arrow A in FIG. 2 with the rotating shaft as the rotation axis. )
CD (14) is inserted into the CD turntable (1
It will be placed on 7). The reproducing device ( 16 ) is further raised to a state where the upper surface of the CD (14) is in contact with the lower surface of the chuck member (22), and then the reproducing device ( 1)
6 ) Lifting is stopped. In this state, O in FIG.
As shown in Fig. 3 which is a sectional view at -O ', the CD (14) is
The chuck member (22), which is separated from the CD mounting portion (15) and is rotatably supported, is pressure-bonded and held on the CD turntable (17). Therefore, when the spindle motor (23) is energized and the CD turntable (17) is rotated, the CD (14) is rotated,
The CD (14) can be reproduced by the optical pickup (18).

Therefore, the playback device ( 16 ) is lowered, the turntable ( 3 ) is rotated, and the CD (1) mounted on the CD mounting section (15) is rotated.
After moving 4) to the playback position, raise the playback device ( 16 ) and press-hold the CD (14) on the CD turntable (17) repeatedly to place each CD. A plurality of CDs placed on the section (15) can be sequentially reproduced.

As shown in FIG. 3, the chuck member (22) is loosely fitted to a clamp plate (25) which is rotatably supported by a clamp mechanism ( 20 ) around a shaft (24). The clamp plate (25) is configured to rise in accordance with the rotational displacement of the clamp mechanism ( 20 ) to the non-reproduction position, and the chuck member (22) is moved when the clamp mechanism ( 20 ) is rotationally displaced. The rotation displacement of the clamp mechanism ( 20 ) is not hindered by colliding with a high portion of the turntable ( 3 ) supporting the record board (4).

(G) Effect of the Invention As described above, according to the present invention, the turntable is rotated when the optical disc to be reproduced is selected by using the motor that rotates the turntable when reproducing the record board. It is possible to provide a composite disc player in which an automatic changer type optical disc player and a record player are combined with a simple structure and an increase in the number of parts is suppressed.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention, and FIG.
A partial cross-sectional view for explaining how to displace the reproducing apparatus shown in the figure,
FIG. 3 is a sectional view taken along line OO ′ in FIG. Description of main drawing numbers (1) ... Cabinet, (2) ... Center shaft,
( 3 ) ... Turntable, ( 5 ) ... Pickup mechanism, (10)
… Motor, (11)… Belt, (15)… CD rest, ( 16 )…
Playback device, ( 20 ) ... Clamping mechanism.

Claims (1)

[Claims] 1. A turntable on which a record board whose signals are mechanically read by a needle type pickup is mounted,
Providing a plurality of disk mounting portions, each having a diameter smaller than that of the record board and on which a signal is optically read by an optical pickup, on the rotation axis of the turntable, and rotating the turntable. Is provided with a reproducing device for reproducing the disc placed on the disc placing portion moved to the reproducing position, and the motor for rotating the turntable is used for rotating the record disc to reproduce the record disc. In addition, the composite disc player is configured to be used for moving a disc placed on a predetermined disc placing portion to a reproducing position so as to select a disc to be reproduced.