JPH0795385B2 - Recording disk mounting device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording disk mounting device for holding a disk disk on a rotating turntable, and is particularly required to be thin and inexpensive.
The present invention relates to a mounting device for a recording disk such as a ROM.

[0002]

2. Description of the Related Art A conventional mounting device of this type is, for example, as described in Japanese Unexamined Patent Publication No. 59-207054, a moving mechanism for moving a movable table on which a disk is mounted from outside the device to the inside of the device. It is equipped with a turntable for rotating and a clamp mechanism for holding the disc.

[0003]

In the conventional apparatus, the moving table of the transfer mechanism has a recording disk elevating means, and the elevating means moves the recording disk in conjunction with the stop of the movement of the moving table. It is connected to the interlocking means for lowering. However, it is not suitable for thinning the moving table because the moving table is provided with an elevating means and a space for raising and lowering the recording disk is required in the recess of the moving table, and thus the whole apparatus is Built-in type CD-ROM, which is important to be thin
In addition, a mechanism having a moving base was not suitable for an in-vehicle CD player.

It is an object of the present invention to provide an inexpensive recording disk mounting apparatus having a thin movable table and suitable for a thin apparatus.

[0005]

According to the present invention, when a movable table is moved, a rack for transmitting power from a motor and a gear and a movable table (1) have latches for engaging the movable table (1) so that the rack and the movable table move. After the table moves into the equipment, the latch and the rack are disengaged, and only the rack operates, and the power is transmitted to the cam surface that controls the elevation of the turntable section through the motor, gear, and rack, and the turntable It is configured to control the elevation of the section.

[0006]

[Operation] A moving disk mounts a recording disk and moves inside and outside the device. This power is transmitted to the rack via the motor and gears, and the rack and the moving base are substantially integrated by the latch, and the moving base moves. After the carriage enters the equipment, the latch moves by the control means in the equipment to open the rack from the carriage, the carriage stops at the predetermined position, and the rack continues to move by the power of the motor. to continue. At this time, the turntable section, which was controlled by the cam surface provided in the mechanism section including the rack shaft and the turntable section, moved up and down so that the moving table and the recording disk were in a position avoiding the moving space. It is inserted into the center hole of the and the recording disc is lifted up to the reproducible state and separated from the moving table. After this, the recording disk can be played back.

When the recording disk is ejected, it passes through the motor and gear,
Power is transmitted to the rack, the shaft provided on the rack pushes down the cam surface provided on the mechanism part including the turntable part, and the turntable part is retracted from the moving space of the recording disk and the moving base, and then the rack moves the moving base. Push out of the device. At this time, the latch moves by the control means in the apparatus so that the movable table and the rack are substantially integrated.

As an alternative, the cam surface and the turntable portion may be moved up and down not by the rack but by the gear. The lifting and lowering of the mechanism portion including the turntable portion may be a rotation, not a translational movement. The mechanism portion including the turntable portion may not be biased upward by the spring as long as the cam surface is the guide groove.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 2 is an external view showing the structure of the present embodiment when a recording disk is attached, FIG. 1 is a vertical center sectional view, and FIG. 8 is FIG.
FIG. Reference numeral 1 denotes a movable table, to which a rail 8 is attached, and a rail 8 or a movable table 1 is slid to the front of the apparatus at the position of FIG. 1 and the left side of the position of FIG. It is slidably held up to a position where the disk 10 can be taken out or another disk can be placed. The clamp arm 3 is a shaft 9 provided on the clamp arm 3.
Is rotatably held by being fitted in a vertical hole provided in the unit plate 4, and is urged toward the turntable 5 by a spring 6, and holds the disc 10 by a clamper 13. . Here, the unit plate 4 is vertically movable with respect to a guide 14 provided on the chassis 2, and floats with respect to the chassis 2 by a spring 7 interposed between both members, and is also non-contact with the guide 14. Case 1 with chassis 2 fixed for
Even if external vibration or impact is applied to 1 (chassis 2 and case 11 are not shown in the figure), the energy is absorbed by the spring 7, and therefore the unit plate 4,
Only a slight vibration is transmitted to the closed loop system including the clamp arm 3, the clamper 13, the disc 10, the turntable 5, and the unit plate 4. Further, since the disc signal reading portion, that is, the pickup 23 of FIG. 7 is slidably attached to the unit plate 4 as described later, only a slight vibration is transmitted to the pickup 23. Here, it is obvious that a vibration damping material such as butyl rubber may be used instead of the spring 7.

Next, the operation of loading and unloading the disk 10 will be described. FIG. 3 is a side sectional view of the disk in the mounted state, which is closer to the front than the center in the vertical direction of FIG. 2, FIG. 4 is a side sectional view showing the state of taking out the disk, and FIGS.
And FIG. 7 is a side sectional view for explaining the operation of the rack 17, FIG. 7 is a plan view of the present apparatus, and FIG. 8 is a front sectional view showing a mounted state of the disk 10.

As shown in FIG. 7, the shaft 16 provided on the rack 17 is at the rear portion of the apparatus when the disk 10 is completely mounted. At this time, the shaft 16 is provided on the unit plate 4 as shown in FIG. It is not in contact with the cam surface 24. Therefore, the unit plate 4 floats in a state of being balanced with the force of the spring 7. Next, when the rack 17 moves to the position indicated by the broken line in FIG. 7 by the rotation of the drive motor 27, the drive gear 26, and the pinion 18 shown in FIG. 8, the shaft 16 is provided on the chassis 2 shown in FIGS. It moves along the guide groove 15. At this time, the inclined surface and the horizontal plane of the cam surface 24 provided on the unit plate 4 by being pushed by the shaft 16 are urged downward by the shaft 16, and the unit plate 4 moves downward against the force of the spring 7 to hold it. To be done. At this time, the spring 6 with one end attached to the unit plate 4
The clamp arm 3 urged downward by the
It is rotatably held by the unit plate 4 by the clamp arm 3 as the unit plate 4 descends.
Also descends. However, while descending, the arms 22 provided on the left and right of the clamp arm 3 (vertical direction in FIG. 7) engage with the protrusions 21 provided on the chassis 2, and the contact point serves as a fulcrum of the lever principle, and the shaft 9 4, the side of the clamp arm 3 that holds the clamper 13 rises as shown in FIG. After the disk 10 (not shown) is opened as described above, the rack 17 provided with the shaft 16 pushes the movable table 1 on which the disk 10 is placed forward of the apparatus.

According to this embodiment, as shown in FIGS. 8 and 9, the unit plate 4 itself moves vertically, so that means for moving the disk 10 up and down on the moving table 1 to mount and dismount it from the turntable 5. The feature is that it does not need to be provided.

Next, a description will be given of the operation of newly placing a disk on the movable table 1 pushed out in front of the apparatus and setting it in the mounted state.

As described above, the rotation of the drive motor 27, the drive gear 26, and the pinion 18 shown in FIG. 8 moves the rack 17 shown in FIG. 5 into the apparatus, that is, to the right. A cylindrical portion provided at the lower end of the latch 19 is in contact with the right side surface of the rack 17. An upper end of the rack 19 is rotatably engaged with a shaft 20 provided on the movable table 1. Therefore, the rightward movement of the rack 17 causes the rack 17 to push the latch 19 along the chassis 2 and thus the movable table 1 is moved rightward in FIG. 5 via the shaft 20. When the movable table 1 reaches a predetermined position, the chassis 2 is provided with an appropriate relief portion, so that the latch 19 pivots in the direction of arrow A in FIG. Since the mesh with 17 is disengaged, the movement of the movable table 1 is stopped. However, the rack 17 is still fed by the pinion 18 in the direction of arrow B in FIG. Since this rack 17 is provided with the shaft 16, the shaft 16 moves from FIGS. 4 to 3 and moves away from the contact with the cam surface 24 of the unit plate 4, so that the unit plate 4 is moved by the biasing force of the spring 7. 3 and 7 and FIG. 8 are in a mounted state of being raised and floating from the chassis 2.

The operation from the mounted state to the disc ejected state may be performed by reversing the drive motor 27 and performing the reverse operation.

It is apparent that a slot-in type system is also possible if a package or the like containing a disk is engaged with the rack 17 instead of the movable table 1.

Reference numeral 23 in FIG. 7 denotes a disc signal reading portion, which is slidably attached to the unit plate 4. Reference numeral 25 in FIGS. 8 and 9 denotes a rib for receiving the outer peripheral corner of the disk 10, which is provided on the moving table 1. Rib 2
5, the disk 10 can be placed on the movable table 1 without damaging the recording surface thereof.

[0019]

According to the present invention, since it is not necessary to provide a moving table with an elevating means and a descending space for the recording disk in the moving table is not necessary, the moving table is suitable for weight reduction and thinning. An inexpensive mounting device can be realized.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a state in which a recording disk is completely attached.

FIG. 2 is a perspective view of a recording disk mounting device according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view of a state in which the recording disk is completely attached.

FIG. 4 is a transverse cross-sectional view of a recording disk taken out.

FIG. 5 is a transverse cross-sectional view for explaining an engagement state of a moving table and a moving unit.

FIG. 6 is a transverse cross-sectional view for explaining an engagement state of a moving table and a moving unit.

FIG. 7 is a plan view of the device.

FIG. 8 is a front cross-sectional view of a state in which mounting is completed.

FIG. 9 is a front cross-sectional view when a recording disk is taken out.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Moving stand, 2 ... Chassis, 3 ... Clamp arm, 4 ... Unit plate, 5 ... Turntable, 7 ... Spring, 10 ... Disk, 13 ... Clamper, 15 ... Guide groove, 16 ... Shaft, 17 ... Rack, 24 ... cam surface.

Claims (1)

[Claims] 1. A moving means for moving a moving table on which a recording disk is placed between the outside and inside of the apparatus, a turntable portion and a clamping means arranged so as to face the recording disk moved inside the apparatus, In a recording disc mounting device having a disc signal reading unit for reading a recording signal on the recording disc, the turntable unit and the turntable unit from the moving space of the recording disc and the moving base when the moving base is in operation or outside the device. An apparatus for mounting a recording disk, comprising: a control means for separating the clamp means and for moving the turntable portion to a position for holding the recording disk after the operation of the movable table is completed.