JP2514759Y2 - Rotating disc auto-changer device - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a rotary type disc autochanger device for exchanging a disc to be reproduced by rotating a rotary tray, and particularly to clamping a disc to be reproduced on a turntable. The present invention relates to a rotary disc autochanger device with an improved clamp plate mounting structure.

(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 device that can automatically exchange a disc (CD) to be played back. . The CD autochanger device is convenient because it can continuously play back songs from a plurality of discs without having to manually replace the discs, and can continuously play back for a long time. The CD
As an auto changer device, for example, JP-A-62-2
As shown in Japanese Patent No. 39375, the rotating tray is rotatable about the rotating shaft, and a plurality of discs can be radially mounted on the rotating tray about the rotating shaft to rotate the rotating tray. There is known a rotary type disc in which a desired disc is moved to a reproduction position where a pickup or a turntable is provided to perform reproduction. In such a rotary type CD autochanger device, the operation for moving to the CD reproducing position is a simple operation of rotating the rotary tray as described above, so that a plurality of discs are loaded and stored. This is advantageous in shortening the time required for disc exchange as compared with a type in which a desired disc is pulled out from the above for reproduction, and the structure is simple and the production cost is advantageous.

(C) Problems to be Solved by the Invention By the way, in many of the rotary type CD autochanger devices, a reproducing mechanism including a turntable and an optical pickup is lowered while the tray is rotating so as not to hinder the rotation of the rotating tray. Then, when the disc is reproduced, the disc moved to the reproducing position is clamped on the turntable by the chuck member arranged above the reproducing position by raising the reproducing mechanism, and the reproducing of the disc is performed. It is designed to be done. Therefore, it is necessary to make the chuck member face the turntable, and it is necessary to position the clamp plate when the clamp plate provided with the chuck member is attached to the cabinet.

Further, since the height at which the chuck member is arranged is set to a distance from the turntable according to the rising distance of the reproducing mechanism, the clamp plate needs to be arranged at a predetermined position slightly higher than the upper surface of the rotary tray. It was

Therefore, in the conventional rotary type CD automatic changer device, there is a problem in workability of the mounting process of the clamp plate.

(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 is for rotating the disc mounted on the mounting portion displaced to the reproducing position. Of a turntable and a reproducing mechanism having a pickup for reading a signal recorded on the disc, an axis serving as a rotation center of a rotary tray provided in the cabinet and on which a plurality of discs are mounted, and the rotary tray. A pressing plate attached to the shaft so as to be pressed from above; and a clamp plate provided with a chuck member for crimping the disc onto the turntable and having an engaging portion engaged with the pressing plate. , One of the clamp plates is engaged with the pressing plate, and the other of the clamp plates is fixed to the cabinet .

(E) Action The present invention positions one end of the clamp plate by using the pressing plate attached to the rotation center axis of the rotary tray so as to press the rotary tray from above, and the positioning accuracy is easily obtained. There is.

Further, in the present invention, the clamp plate is provided with the engaging portion so that it can be engaged with the pressing plate, and the workability is improved.

Further, according to the present invention, since the clamp plate is engaged with the pressing plate, the height of the clamp plate can be regulated by the pressing plate on the rotation center axis of the rotary tray, and the clamp plate is rotated. It is easy to place it so that it does not come into contact with.

(F) Embodiment FIG. 1 is an exploded perspective view of a rotary type disk autochanger device showing an embodiment of the present invention. In the figure, (1) is a cabinet, (2) is a shaft integrally formed with the cabinet (1), and (3) is rotatable with respect to the cabinet (1) about the shaft (2) as a rotation center axis. Is mounted on the rotary tray, and five concave mounting portions (4) on which discs are mounted are arranged in a line radially from the center, and (5) is a rotary tray for suppressing the floating of the rotary tray (3). Located above the center of (3),
A disc-shaped pressing plate attached to the shaft (2) by a screw (19), and ( 6 ) a turntable (7) for rotating the disc mounted on the mounting part (4) displaced to the reproducing position. And a reproducing mechanism having an optical pickup (8) for reading a signal recorded on the disc and provided at a predetermined position in the cabinet (1), and (9) placing the disc on the turntable (7). A clamp plate to which a chuck member (10) for crimping is attached.

The rotating tray (3) is supported by a shaft (2), and a rim (11) (shown in FIG. 2) concentrically provided on the rotating tray (3) has a cabinet (1).
The rollers are placed on a plurality of rollers (12) arranged at predetermined positions, so that they can be smoothly rotated. The rotary tray (3) has a gear portion (not shown) formed on the entire inner circumference of the rim (11) and drives a gear (not shown) meshed with the gear portion. The rotation is performed by.

The reproducing mechanism ( 6 ) is supported so as to be movable up and down with respect to the cabinet (1), and the turntable (7) and the optical pickup (8) are formed in the cabinet (1) in a hole (13). It is placed in a position to look through from. Then, when the reproduction mechanism ( 6 ) is lowered, the turntable (7) and the optical pickup (8) are not projected from the hole (13), and inhibit the rotation of the rotary tray (3). In this state, the disc to be reproduced can be selected. On the other hand, when the reproduction mechanism ( 6 ) is raised, the turntable (7) and the optical pickup (8) are projected from the hole (13) and placed on the mounting portion (4) displaced to the reproduction position. The mounted disc is pushed up while being mounted on the turntable (7), and the disc is attached to the chuck plate (1) at a position facing the turntable (7) of the clamp plate (9).
It is pressed and held on the turntable (7) by means of 0). In this state, as shown in the side sectional view of FIG. 2, the disc (14) placed on the placing portion (4) displaced to the reproducing position is separated from the rotary tray (3),
Since the turntable (7) is rotated by rotating it, the optical pickup (8) can reproduce the disc (14).

Next, a method of attaching the clamp plate (9), which is a feature of the present invention, will be described, but before that, a configuration related to the attachment of the clamp plate (9) will be described in detail.

The pressing plate (5) is provided with concentric steps, and the pressing plate (5) is attached to the shaft (2) of the cabinet (1).
When it is attached to the rotary tray (3), a gap is formed between the upper surface of the rotary tray (3) and the outer periphery of the pressing plate (5) as shown in FIG.

On the other hand, in the clamp plate (9), as shown in the partial plan view from below in FIG. 3, the tip end portion arranged on the center side of the rotary tray (3) is inward from the center of the end face of the clamp plate (9). The tongue piece (15) that is projected so as to be folded back and is tapered so as to taper, and the tongue piece (15) for holding the upper surface of the pressing plate (5) from the upper inner surface of the clamp plate (9). Two projecting pieces (16) are formed so as to project downward from both sides of the position sandwiched between.

Further, the clamp plate (9) is folded back so as to come into contact with the rear surface of the cabinet (1) at the end portion arranged on the rear surface of the cabinet (1) on the outer peripheral side of the rotary tray (3). The part (17) is formed, and the corresponding contact part (17)
Is designed to be fixed to the cabinet (1) with screws (18).

When mounting the clamp plate (9) constructed as described above, the shaft (2) is attached as shown in the sectional view of the main part of FIG.
The tip of the clamp plate (9) is tilted so that the tip of the clamp plate (9) covers the pressing plate (5) screwed to the bottom of the clamp plate (9) and the tip of the clamp plate (9) is lowered. The clamp plate (9) is slid in the direction of arrow A while being in contact with the front surface of the rotary tray (3).
Then, the outer peripheral portion of the pressing plate (5) and the rotary tray (3)
The tongue piece (15) of the clamp plate (9) is inserted into the gap (20) formed between the upper surface of the press plate (9) and a part of the outer peripheral portion of the pressing plate (5) as shown in FIG. Said tongue (15)
It is in a state of being sandwiched between the and the protrusion (16). In this case, as shown in FIG. 4, the clamp plate (9) is slid in a slanted state, but the pressing plate (5) is disc-shaped and the projecting piece (16) is shown in FIG. As described above, since the clamp plates (9) are provided parallel to each other at positions deviated from the center of the clamp plate (9), the protrusions (16) do not prevent the clamp plate (9) from sliding. Further, since the tongue piece (15) is tapered, the tongue piece (15) can be smoothly inserted into the gap (20).

In this way, when the tip portion of the clamp plate (9) is locked to the cabinet (1) via the pressing plate (5), the end portion of the clamp plate (9) is placed at a predetermined position, and the end portion is fixed. The clamp plate (9) is completely attached by fixing the cabinet (1) from the rear surface with screws (18).

In this state, the tip portion of the clamp plate (9) is
The upper surface of the tongue piece (15) is prevented from being displaced upward by coming into contact with the outer peripheral lower surface of the pressing plate (5), and the lower end of the protruding piece (16) contacts the upper peripheral surface of the pressing plate (5). The contact prevents the downward displacement. Therefore, the clamp plate (9) is accurately positioned in the height direction. Then, the end portion of the clamp plate (9) is fixed with screws at two positions on the back surface of the cabinet (1) and fixed so as to firmly prevent horizontal displacement, so that the clamp plate (9) is fixed. It is attached to the cabinet (1) without play.

(G) Effect of the Invention As described above, according to the present invention, the engaging portion formed on the clamp plate and the engaged portion formed on the pressing plate disposed above the central portion of the rotary tray are engaged. Since the clamp plates are attached to each other, the clamp plates can be easily attached to the cabinet, and the clamp plates can be stably arranged close to each other without hindering the rotation of the rotary tray.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention, FIG. 2 is a cross-sectional view from the side with a clamp plate attached, and FIG. 3 is a part from below showing the main part of the present invention. Plan view,
FIG. 4 is a partial cross-sectional view of the main part for explaining the method of attaching the clamp plate. Description of main drawing numbers (1) …… Cabinet, (2) …… Axis, (3) …… Rotary tray, (5) …… Pressing plate, (9) …… Clamp plate, (15) …… Tongue Piece, (16) …… Projection piece.

Claims (1)

(57) [Scope of utility model registration request] 1. A plurality of mounting portions are provided so that a plurality of discs can be mounted on a rotary tray rotatably supported by a cabinet, and the rotary tray is rotated to cause the inside of the plurality of mounting portions to rotate. Move the specified mounting part of to the playback position,
In a rotary disc autochanger device for selecting a disc to be reproduced, a turntable for rotating the disc mounted on a mounting portion displaced to a reproducing position and a pickup for reading a signal recorded on the disc are provided. It is provided in the reproduction mechanism and the cabinet,
A shaft serving as a rotation center of the rotary tray, a pressing plate mounted on the shaft and arranged above the central portion of the rotary tray to suppress the floating of the rotary tray, and the disc is crimped onto the turntable. And a clamp plate that is installed on the peripheral portion of the cabinet where the rotary tray is not arranged and the central portion of the rotary tray, and one side of the clamp plate and the pressing plate are provided. An engaging portion is formed on the clamp plate so as to be engaged, an engaged portion is formed on the pressing plate, and one side of the clamp plate is secured by engagement of the engaging portion and the engaged portion. A rotary type disk autochanger device characterized in that it is mounted on a cabinet via the pressing plate.