JPH082844Y2 - Rotating disc autochanger device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a rotary disc autochanger device for exchanging discs to be reproduced by rotating a rotary tray on which a plurality of discs are placed. In particular, the present invention relates to a rotary type disk autochanger device suitable for opening and closing a lid body which is openably and closably provided in a cabinet so as to cover an upper part of a rotary tray and attach and detach a disk in a disk mounting portion.

(B) Conventional technology A disc autochanger device is known in which a plurality of discs are set and the discs to be reproduced are automatically exchanged. Currently, the disc autochanger device is a CD type optical disc (CD). The thing for is popular. As such a disc autochanger device, for example, as shown in JP-A-62-239375, the tray can be rotated about a rotation axis, and
A plurality of disc mounting portions for mounting a disc around the rotation axis are provided radially on the tray, and the desired disc mounting portion is provided with a turntable and an optical pickup by rotating the tray. A rotary type is known which moves to a reproducing position opposed to the mechanism and reproduces a disk placed on the disk mounting portion. In such a rotary type disc autochanger device, the operation of exchanging the disc to be reproduced is a simple operation of rotating the tray as described above.
It is advantageous in shortening the time required for disc replacement as compared with a type in which a plurality of discs are stored in a stacked state, and a desired disc is taken out of them for reproduction, and the structure is simple. There is also an advantage in terms of manufacturing cost.

By the way, the rotary disc autochanger device of the above-mentioned publication is a so-called front loading system in which the tray is configured to be able to be pushed out from the front surface of the cabinet, and the disc is attached / detached while the tray is pushed out from the cabinet. In such a case, a mechanism for sliding the tray is required, resulting in high cost. Therefore, a rotary type disc autochanger device is provided with a lid body which is openable and closable as a popular item so as to cover the upper side of the rotary tray, and the disc can be attached and detached from above by opening the lid body. The above-mentioned open type is proposed.

(C) Problems to be Solved by the Invention However, in the rotary disc autochanger device of the upward opening type, the lid can usually be opened at any time, so there is a risk that the rotary tray will be touched during playback of the disc. . Here, the rotary disc autochanger device has conventionally restricted the rotational movement of the rotary tray during reproduction of the disk, but did not restrict the vertical movement of the rotary tray. Therefore, when the vicinity of the outer peripheral edge of the rotary tray is pressed, the rotary tray is displaced in the vertical direction with the rotary shaft of the rotary tray as a fulcrum, and a part of the rotary tray comes into contact with the rotating disc that is being reproduced, There was a risk of damaging the.

(D) Means for Solving the Problems The present invention is a rotary type disc autochanger device made in view of the above-mentioned points, and a protrusion for restricting the upward displacement of the rotary tray is provided at a reproduction position of the rotary tray. It is supported so as to be able to project above the placing portion moved to.

(E) Action The present invention prevents the rotating tray from being displaced upwards near the mounting portion at the playback position by projecting the protrusion during playback of the disc, so that the disc is rotated during playback. Make sure the trays are not touched.

(F) Embodiment FIG. 1 is a plan view showing an example of a rotary type disc autochanger device according to the present invention. (1) is a cabinet, (2) is a center shaft supported by the cabinet (1), ( 3 ) is rotatably attached to the cabinet (1) about the center shaft (2) as a rotation center axis, and has a concave CD mounting portion (5) on which a CD (4) is mounted. the carousel that is five continuously provided radially around the center shaft (2), (6) is a rim which is formed concentrically of the carousel on the bottom surface of the carousel (3) (3), ( The pulley 7 is fixed to the rotating shaft 7a, and the rubber belt 9 is stretched between the pulley 8 and the rim 6.
Driving said carousel (3) through the motor, (1
0 ) is a CD turntable (1 for rotating the CD (4)
1), an optical pickup (12) for reading the signal recorded on the CD (4), and the optical pickup (12) for the CD
(4) a feeding mechanism ( 3 ) for feeding in the radial direction, and a reproducing mechanism ( 14 ) for reproducing a CD provided at a predetermined position in the cabinet (1) faces the reproducing mechanism ( 10 ). This is a clamp mechanism for pressing and holding the CD mounted on the CD mounting portion (5) moved to the reproduction position on the CD turntable (11).

In the CD mounting portion (5) of the carousel ( 3 ), the CD (4) is mounted on the CD turntable (11) and by the light beam from the optical pickup (12), the CD (4) ) Are formed with holes (15) respectively.

The regeneration mechanism ( 10 ) has a shaft (1
It is axially supported by the cabinet (1) by 6) and is supported so as to be able to move up and down with the shaft (16) as the central axis of rotation. Further, as shown in FIG. 2 showing a side view of the shaft (16) from the axial direction, a first protrusion (35) is formed on the side surface of the other end of the base (10a). 1 protrusion (3
5) is inserted into a cam (43) formed around the side surface of a cylindrical cam body (42) which is rotationally driven. The cam (43) is formed with a slope so that the upper and lower flat portions (43a) and (43b) having a height difference are connected by the slope portion (43c). Therefore, the reproducing mechanism ( 10 ) can be moved up and down by rotating the cam body (42) in a predetermined direction. Here, when the playback mechanism ( 10 ) is raised, the CD turntable (11)
The CD mounting surface is projected above the CD mounting portion (5) through the hole (15). The reproducing mechanism ( 10 ) is in the lowered state as shown in FIG. 2 except when the CD is being reproduced.

On the other hand, the clamp mechanism ( 14 ) is rotatably supported in the cabinet (1) by a rotation shaft (17) in a horizontal direction as shown in FIG. 3 which is a sectional view taken along line OO ′ of FIG. The clamp mechanism ( 14 ) is provided with a clamp plate (19) rotatably supported about a shaft (18) in a vertical direction. The CD (4) is attached to the clamp plate (19).
A chuck member (20) for crimping and holding is rotatably loosely fitted on a CD turntable (11), and the clamp plate (19) is a hemisphere formed on the lower surface of the clamp plate (19). The protrusion (21) is supported by being mounted on a guide protrusion (22) formed in a part of the cabinet (1) around the rotation shaft (17). The guide protrusion (22) has a low portion where the protrusion (21) abuts when the clamp mechanism ( 14 ) is displaced to the clamp position shown by the solid line in FIG. ( 14 )
1 is displaced to the non-clamping position shown by the alternate long and short dash line in FIG. 1, the portion where the projection (21) abuts is gradually raised. Therefore, the chuck member (20)
The position of gradually increases as the clamp mechanism ( 14 ) is displaced from the clamp position to the non-clamp position,
When displacing the clamp mechanism ( 14 ) to the non-clamp position, the chuck member (20) is prevented from colliding with a high portion of the outer peripheral portion of the rotary tray ( 3 ), and the rotation of the clamp mechanism ( 14 ) is prevented. The displacement is not hindered.

By the way, the peripheral part (24) where the CD mounting part (5) of the carousel ( 3 ) is not formed and the star-shaped central part (25) are the record board (2) in which analog signals are mechanically recorded.
6) Supporting part for supporting the CD mounting part (5)
It is made one step higher and is made of resin or rubber that has viscoelasticity for holding the record board (26) and absorbing the vibration of the record board (26) on all or part of its support part. The mat (not shown) is attached. And
The center shaft (2) is formed so as to protrude from the upper surface of the rotary tray ( 3 ) and its diameter corresponds to the center hole of the record board (26).

Further, the cabinet (1) is supported so as to be horizontally rotatable around a vertical shaft (27), and the horizontal shaft (2
8) A tone arm (2
9), pickup mechanism (3 consisting cartridge (30) needle type provided at the tip of the tone arm (29)
1 ) is provided.

The rotary tray ( 3 ), the clamp mechanism ( 14 ), and the pickup mechanism ( 31 ) are attached to the hinge (32) on the back surface of the cabinet (1) as shown in the model view from the side of FIG.
It is configured so that it can be covered with a lid (33) that is openably and closably attached through the lid. The lid (33) is made of a transparent synthetic resin material so that the inside can be seen even when the lid is closed. Is made in.

Next, a method of using the rotary disc autochanger device configured as described above will be described. Of course, when setting a CD or record board, the lid (33) should be open (or removed).
Leave.

First, when reproducing a CD, 1 to 5 CDs are mounted on the CD mounting portion (5) of the rotary tray ( 3 ) according to the number of CDs to be reproduced. In this case, the clamp mechanism ( 14 ) is rotated to the non-clamping position so as to avoid the position of the CD mounting portion (5) as shown by the alternate long and short dash line in FIG. Make sure that the CD can be placed in 5). And the desired
After mounting the CD (4) of the CD mounting portion (5), the clamp mechanism ( 14 ) is rotated to the clamp position shown by the solid line in FIG. Here, the lower surface of the chuck member (20) of the clamp mechanism ( 14 ) is mounted on the CD mounting portion (5) on the CD (4).
It is arranged to be higher than the upper surface of. Also,
Since the reproduction mechanism ( 10 ) is lowered as shown in FIG. 2, the rotary tray ( 3 ) can be rotated even when the clamp mechanism ( 14 ) is displaced to the clamp position. Therefore, when selecting a CD to be reproduced, the rotary tray ( 3 ) is rotated while the clamp mechanism ( 14 ) is displaced to the clamp position, and the CD is mounted on the desired CD mounting section (5). Move the CD to be played to the playback position opposite the playback mechanism ( 10 ). In this case, the motor (7)
When the pulley (8) is rotated by energizing the pulley (8), the rotation of the pulley (8) is transmitted via the belt (9) to the rotary tray ( 3 ).
Since it is transmitted to the rim (6), the rotary tray ( 3 ) can be rotated and a desired CD can be moved to the reproduction position.

When the desired CD is moved to the playback position, the playback mechanism ( 10 ) is then raised. The reproducing mechanism ( 10 ) is raised by rotating in the direction of arrow A in FIG. 2 about the shaft (16) as a rotating shaft. As the ascent progresses, the projecting portion at the center of the CD turntable (11) is eventually inserted into the center hole (4a) of the CD (4), and the CD (4) is mounted on the CD turntable (11). It will be placed. Playback mechanism ( 10 )
Is further raised, and the upper surface of the CD (4) is attached to the chuck member (2
After being raised to the state of being brought into contact with the lower surface of 0), the raising of the reproducing mechanism ( 10 ) is stopped. In this state,
The CD (4) is separated from the CD placing section (5), and the chuck turntable (1) is used by the chuck member (20).
1) Pressed and held on top. Therefore, when the spindle motor (34) is energized and the CD turntable (11) is rotated, the CD (4) is rotated. Therefore, the optical pickup (12) reproduces the CD (4). Can be done.

Therefore, the reproduction mechanism ( 10 ) is lowered to the non-reproduction position, and the rotary tray ( 3 ) is rotated to move the CD (4) mounted on the CD mounting portion (5) to the reproduction position. After that, the playback mechanism ( 10 ) is raised and the CD (4) is moved to the CD.
It is possible to sequentially reproduce a plurality of CDs mounted on the respective CD mounting portions (5) by repeatedly pressing and holding on the turntable (11) for use.

On the other hand, when reproducing the record board, the clamp mechanism ( 14 ) is rotated to the non-clamping position and retracted from the position where the record board is placed. Then, the center hole of the record board (26) is inserted into the center shaft (2) and the record board (26) is placed on the rotary tray ( 3 ). Here, the state playback mechanism (10) is because it is made so as to descend before pivoting the clamping mechanism (14) to the unclamped position, which rotates the clamping mechanism (14) in the non-clamping position At, the carousel ( 3 ) can be rotated.

Therefore, if the rotary tray ( 3 ) is rotated, the record board (26) is rotated, the tone arm (29) is rotated, and the record board (26) is traced by the cartridge (30). The record board (26) can be reproduced by the mechanism ( 31 ).

The rotation of the rotary tray ( 3 ) when rotating the record board (26) is performed by a motor (7) serving as a drive source for rotating the rotary tray ( 3 ) when selecting a CD to be reproduced.

Further, the CD placing portion (5) of the carousel ( 3 ) is formed one step lower than the supporting portion on which the record board (26) is placed, and the step of the CD placing portion (5) is Since the thickness is larger than the thickness of CD, the record board (26) can be placed on the rotary tray ( 3 ) with the CD placed on the CD placing section (5).

By the way, as shown in FIG. 5, the present invention is provided with a projecting piece (36) supported so as to be able to project above the CD mounting section (5) displaced to the reproducing position of the rotary tray ( 3 ). There is. The projecting piece (36) is attached to one end of an L-shaped angle (37) pivotally supported by the cabinet (1), and the L-shaped angle (37) is rotatable about a shaft (38). It is supported. The L-shaped angle (37) is configured to be pressed by a pressing plate (39) having an abutting portion that abuts against the other end of the L-shaped angle (37). The (39) is rotatably supported by the cabinet (1) about the shaft (40). Here, the pressing plate (39)
Is adapted to be pressed by the second protrusion (41) protruding from the side of the base (10a) of the reproducing mechanism ( 10 ).
That is, when the reproducing mechanism ( 10 ) moves up and is displaced from the non-reproducing position toward the reproducing position, the pressing plate (39) rotates from the state shown by the solid line in FIG. 5 to the state shown by the alternate long and short dash line. To be done. When the pressing plate (39) is rotated to the state shown by the alternate long and short dash line in FIG. 5, the other end of the L-shaped angle (37) is pressed downward by the abutting portion of the pressing plate (39), The L-shaped angle (37) is rotated from the state shown by the solid line in FIG. 5 to the state shown by the alternate long and short dash line. Therefore, the tip of the projecting piece (36) is projected above the rotary tray ( 3 ).

Here, since the protruding piece (36) is displaced according to the rise of the reproducing mechanism ( 10 ), when the tip of the protruding piece (36) is projected onto the rotary tray ( 3 ), the reproduction is performed. The CD (4) is placed on the CD turntable (11) of the reproducing mechanism ( 10 ) and is displaced upward. Therefore, the tip of the protruding piece (36) is inserted below the CD (4) and above the rotary tray ( 3 ) without coming into contact with the CD (4).

Accordingly, the protruding piece (36) of the tip portion opposite to the vicinity of the carousel (3), the upward displacement of the carousel (3) is restricted, accidentally during playback of CD (4) Even if the rotary tray ( 3 ) is touched, the protrusion (36) prevents the rotary tray ( 3 ) from coming into contact with the CD (4).

When the record board (26) is played back or the rotary tray ( 3 ) is rotated, the playback mechanism ( 10 ) is lowered and displaced to the non-playback position.
9) and the L-shaped angle (37) are displaced to the state shown by the solid line in FIG. 5, and the tip of the projecting piece (36) is avoided from above the rotary tray ( 3 ). Therefore, the protruding piece (36) does not hinder the mounting of the record board (26) on the rotary tray ( 3 ) or prevent the rotation of the rotary tray ( 3 ).

(G) Effect of the Invention As described above, according to the present invention, the rotary tray is restricted from being displaced in the upward direction in the vicinity of the placing portion at the reproducing position by projecting the projecting piece. Therefore, it is possible to prevent the rotating tray from coming into contact with the disc that is being reproduced, and prevent the disc from being damaged.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of a rotary type disc autochanger device according to the present invention, FIG. 2 is a side view for explaining a way of displacing the reproducing mechanism of FIG. 1, and FIG. 3 is FIG. 4 is a cross-sectional view taken along the line OO ′ of FIG. 4, FIG. 4 is a model view showing a state where the lid is attached, and FIG. 5 is a partial cross-sectional view showing an embodiment of the main part of the present invention. Description of main drawing numbers ( 3 ) …… Rotary tray, (5) …… CD loading section, (10)…
… Reproduction mechanism, ( 14 ) …… Clamp mechanism, (33) …… Lid body, (36) …… Projection piece, (37) …… L-shaped angle, (39)
...... Press plate.

Claims (1)

[Scope of utility model registration request] 1. A plurality of mounting portions for mounting disks around a rotation axis of a rotatable tray rotatably supported in a cabinet are radially provided on the rotatable tray, and the rotatable tray is rotated to rotate the rotatable tray. In a rotary type disc autochanger device for moving a predetermined placing part of a plurality of placing parts to a reproducing position and exchanging a disc to be reproduced, above the placing part moved to the reproducing position of the rotary tray. A protrusion supported so as to be capable of projecting, and when the protrusion is projected, the upward displacement of the rotary tray in the vicinity of the placing portion moved to the reproduction position by the protrusion is restricted. Rotating type disc auto changer device.