JPS58122669A - Dis automatic loader - Google Patents

Abstract

PURPOSE:To reduce the access time with improved loading efficiency, by providing a catridge moving mechanism between a disc cartridge containing box and a disc driver. CONSTITUTION:In receiving an instruction to select a disc from an upper-order device, the cartridge containing box 7 loading a plurality of disc cartridges 9 in standing is moved to (e) or e' direction on a guide rail 24. When the box 7 is positioned, a cartridge holder in a cartridge moving mechanism 5 is moved in the box 7 to clamp the cartridges 9. The cartiridge holder calmping the cartridges 9 is moved to a disc driver 1 and the cartridges 9 are contained in a cartridge guide 3.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic loading mechanism for a disk-shaped recording medium into a drive device thereof.

For devices that use video discs, audio PCM discs, and professional digital optical discs, it is possible to store the discs in a carousel, that is, a donut-shaped storage box, but the dimensions are too large when the number of discs is small. There are drawbacks.

The above-mentioned storage box is not suitable when the number of discs to be placed in the storage box is small (10 to 12).

The main points when designing are (1) compactness;
(2) The disk access time is known (it takes no time to eject and load the disk, and from removal to storage); and (3) the mechanism is simple.

When the car cell is rotated, it takes a long time to access it, and the power consumption during the car cell rotation is also large.

The purpose of the present invention is to eliminate the above-mentioned problems, and to provide an automatic disk loading machine with short access time, simple mechanism, and high implementation efficiency (the device is relatively small). There is a particular thing.

Key Points of the Invention (a) The route from taking out the disc to loading it into the device is straight and can be simplified. (By rotating the disc taken out from the BL storage box 180 degrees, it is possible to record and play back on both sides of the disc.

Embodiments of the Invention When storing a disc, it is possible to store the disc as it is or to store it in a cartridge, but this method is implemented in which the disc is stored in a cartridge for the purpose of protecting it. Let's explain with an example.

1 and 2 are a plan view (view from above) and a front view of an automatic loading mechanism which is an embodiment of the present invention.

The main components are a disk drive device 1, a cartridge moving mechanism 5, and a car.

Finally, we will explain the operation from ejecting the disc to loading it into the device.

When the control unit receives a command to select a predetermined disk from the device at position E, the IJ-judge storage box 7 (in which the disk cartridges 9 are housed in a plurality of compartments) moves along the guide rail 24 to ' and is positioned at a predetermined position.

The predetermined position here is a position where the cartridge guide 3, the cartridge holder 8 in the cartridge storage box 7, and the predetermined disk 9 are at −Km.

To detect the position of the disc, attach a barcode 11 that is an address code to the cartridge case 7, and use the address sensor 2.
3 may be used.

The cartridge storage box 7 is moved by a heavy wheel 25 supported by a bearing on a guide rail 24.

The movement of the cartridge box 7 can also be realized by a combination of a rack and pinion or a wire and a motor.

The disk drive device 1 has a motor and a read/write device built therein. A cartridge holder 4 for holding a rotatable cartridge is provided on the drive shaft side of the motor, and a cartridge guide 3 supported by a fulcrum 25 and a spring 22 is provided on this holder 4. These are W and P open to the disk drive as shown in Figure 1.
Then, the cartridge ridge 9 is inserted, and then the cartridge holder 4 is closed, and the drive hole in the center of the disk engages with the rotating shaft of the motor, so that the disk is rotated by the motor.

When the cartridge storage box 7 is positioned, the cartridge holder 8 in the cartridge moving mechanism 5 moves into the cartridge storage box 7, and the cartridge 9 is clamped.

Here, we will explain the third embodiment of the mechanism for moving the cartridge holder 8 and the mechanism for clamping the cartridge 9.
This will be explained in more detail using the diagram and FIG.

+7 The joint moving mechanism 5 is provided with a cartridge-like holding mechanism on the lower surface of the base 26 on a disk, and the entire mechanism can be rotated by a motor 6 in the direction of arrow a or a' in FIG. It is. A guide 15 is provided on the lower surface of the base body 26 and supports the eight cartridge holders so that they can move only in the fixed direction. On the other hand, a link 12° 14 having 15 as a fulcrum is provided. The arm 12 is a base 26
A drive mechanism (not shown) installed in the ilr moves straight in the direction of arrows s and b' in Fig. 5. do 'l. This drive device can be realized by the well-known combination of a motor and a cam. An elongated hole 28 is provided in the arm 14 in the elongated direction. A fixed bottle 27 is inserted into this elongated hole 2BK cartridge holder 8, and the cartridge holder 8 moves linearly back and forth along the guide by the operation of the link. The cartridge holder 8 is equipped with a hold mechanism 29 as shown in FIG.

In FIG. 3, when the arm 12 is moved in the bz direction, the arm 14 moves in the l and C directions about the fulcrum 13, so that the cartridge holder 8 moves in the d direction.

Since the cartridge holder 8 is guided by the holder guide 15Vr, the direction of the moving force of the cartridge holder 8 is constant.

On the other hand, the cartridge 9 is positioned and fixed by a guide on the lower side of the cartridge storage box 7.

Therefore, the cartridge holder 8 is the cartridge storage box 7.
It is guided by a guide on the upper side of the interior and moves to a designated position.

! 4, a recess is provided in advance in the cartridge 9 so that the clamping latch 16 can be caught, and the latch 16 is connected by a wire 18 linked to a latch motor 17.
clamps the cartridge 9.

Clamp? To release the latch, the latch motor 17 only needs to rotate in the opposite direction.

Next, when the clamping is completed, the arm 12 moves in the b' direction, and the cartridge holder 8 moves in the a' direction and returns into the cartridge moving mechanism 5.

If recording and reproduction are possible on both sides of the disc and there is a fee to reverse the disc, the cartridge moving mechanism 5 is rotated approximately 180 degrees 1φ1 in the direction a or a' by the rotation motor 6.

When the cartridge moving mechanism completes 50 rotations and the cartridge holder 8 is positioned on the extension line of the cartridge guide, the cartridge holder 8 with the 9 cartridges clamped moves toward disk drive unit #1, and the cartridge 9 moves toward the cartridge guide. It is accommodated within 3.

When the cartridge 9 is completely accommodated in the cartridge guide 6, the motor 17 rotates in the opposite direction during the latch, and the clamp is released.

When the clamp is released, the cartridge presser 4 is operated by the link mechanism and presses the cartridge holder 8 toward the cap 2.

Therefore, the disk 1o in the cartridge 9 is clamped by the hub 2 directly connected to the disk drive motor 19, and the disk 1o rotates.

FIG. 5 shows an embodiment of the disk clamping mechanism.

The cartridge guide 6 is pressed against the stopper 20i by the cartridge presser 4 via the spring 22.

On the other hand, since the disk 1o is mounted on the hub 2 before the cartridge guide 6 hits the stopper 90, the disk 10 is floating in the cartridge 9 and can freely rotate.

Since the disk clamp 21 presses the disk 10 from above, the disk 10 is completely clamped to the hub 2.

Note that while the disk 10 is being loaded into the hub 2, the cartridge guide 3 is clamped by a latch.

When removing the disk 10 from the hub 2 and storing it in the cartridge storage box 7, the procedure is reversed.

Figures 3 and 5 are examples of combinations of link mechanisms and motors.
Although FIG. 4 shows an example of a combination of wire and motor, it can also be realized by exchanging the methods in each case.

Another possible method is to use a rack and a binion.

Although the above embodiment shows a mechanism for moving the cartridge holder using a link mechanism, a bar longer than the holt frame is provided above the bar, and is formed over the entire length of the guide board.
Furthermore, by fixing the wire to a bar and winding it around a roller placed close to the periphery of the substrate, the range of movement of the holt mechanism can be increased.

At this time, when the two ends of the bar are A and B, one end of the wire is held near the A end of the bar, passes through a roller near the B end, is wound around a capstan, and is passed through the row 99 near the A end. It is fixed near the B end of the bar. At this time-
The disk cartridge can be taken in from the guide end of the force and taken out from the other end of the guide end.

At this time, insert the secondary disk cartridge taken out from the storage box into the disk drive device without rotating it.
Insertion can be optionally performed with a 180° rotation. This is used in combinations where the disc can be recorded on both sides.

The content described so far is for the case where there is one disk drive device, but finally we will discuss the case where two disk drive devices are used.

Use of 2 disk moving units 1. The advantages of this case are that the access time becomes more predictable and the reliability of the entire system increases.

The access time is defined as the time when a rotating disk stops, the disk is removed, another disk is loaded, and the disk starts rotating again. This is the time from the start until the steady rotation speed is reached.

Typically, access time for one disk-driven snowmaker is about 10 seconds.

On the other hand, if there are two disk drives, one disk can be operated by the drive lid while another disk is loaded into the non-operating disk drive and rotated on standby. , the access time can be considered to be almost zero (Ht,, this does not apply when recording and reproducing the back side of the disc loaded in the disc drive device).

Other advantages when two disk drives are connected are:
This means that even if one disk drive becomes unusable due to an abnormality, the other disk drive can be used, so the system will not go down.

If it leads to a system failure, it will cause a great deal of trouble to the business.However, connecting two devices will greatly contribute to the reliability of the equipment.

According to the present invention, the conveyance path from the time when the disk is taken out to when it is loaded into the device is straight, so the overall mechanism is simplified and the mounting efficiency is increased (less wasted space). .

Furthermore, by connecting two disk drive lids, the time required to wait for disk replacement, that is, the access time, can be reduced to almost zero, and even if one device fails, it will not lead to a system down, improving reliability. Contributes to the mucosa.

[Brief explanation of the drawing]

Figure 1 is a plan view (view from above) of the JL implementation of the present invention.
, FIG. 2 is a front view, FIG. 3 is a view of the cartridge transfer IIth mechanism seen from direction A in FIG. 2I, FIG. 4 is an explanatory diagram of the cartridge clamp mechanism, and FIG. 51i! 2'l is an explanatory diagram of the disk clamp mechanism. Arrows in the figure indicate the direction of movement and direction of rotation. 1... Disk drive device 2... Hub 3... Cartridge guide 4... Cartridge presser 5... Cartridge moving mechanism 6... Rotation motor 7... Cartridge storage box 8... Cartridge Holder 9...Cartridge 10...Disk 11...Barcode
12... Link 7-m 13... Fulcrum
14...Link arm 15...Holder guide
16... Clamp latch 17... Latch motor 18... Wire 19... Disc drive motor 20... Stopper 21... Disc clamp 22
...Spring 23...Sensor 24...
・Guide rail 25...Biwa Sai 1 Figure 1 2 2 Figure 1 2 Figure 0 Figure 5 Figure/q

Claims (1)

[Claims] A mechanism for automatically loading a disk into a drive device that drives a disk, the storage box being movable and storing a plurality of disks or disk cartridges containing the disks, and the storage box and the disk drive. A cartridge moving mechanism interposed between the apparatus and selectively rotatable, having means for ejecting and storing a disk therein, and means for inserting the stored disk into the disk drive cover. Disc automatic loading i featuring
t.