JPS63249964A - Disk drawing device - Google Patents

Abstract

PURPOSE:To take out an optional disk holding plate outside a cartridge case by providing the effective length variable device changing the gap between the engaging part of the arm for drawing a disk and rotary axial line and the arm height adjusting device changing the height of the engaging part of the arm for taking out the disk. CONSTITUTION:A rotary rod 19 is rotated with the actuation of a 1st motor M to set an arm 22 to the angular position engageable with the projection 13 of the necessary disk holding plate 3. Thereafter, the effective length of the arm 22 is shortened with the rotation of a 2nd motor 2 to set it in the necessary length corresponding to the disk holding plate 3. The engaging part 22A of the arm 22 tip is descended as its approaching to a rotary axial line X-X and attained to the necessary position brought into contact with the side face of the projection 13 of the disk holding plate 3. Thereafter, the arm 22 is rotated about 90 deg. with the actuation of the 1st motor M1 and the recording and reproducing of the disk are executed at this position. An optional disk holding plate 3 can be drawn outside the cartridge case accordingly.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides a multi-disk storage cartridge that stores a plurality of recording medium disks (hereinafter simply referred to as disks) such as optical disks and magnetic disks in one cartridge case. This invention relates to a disk ejecting device for ejecting and storing arbitrary disks.

2. Description of the Related Art In a conventional disk cartridge, one disk is housed in one cartridge case.

This disc cartridge is loaded into a recording/reproducing device with a disc stored therein, and recording/reproduction to/from the disc is performed.

The loading and unloading of disk cartridges into and out of recording/reproducing devices is usually done manually. Furthermore, a multi-disc device is known in which a large number of disc cartridges are stored in a storage and the disc cartridges are automatically loaded into a recording/reproducing device using a carrier.

Problems to be Solved by the Invention However, with such a conventional structure, the cartridge case is bulky, so when storing a large number of disks, the storage space becomes large, and in a multi-disk device, the device becomes large. there were. Furthermore, when recording and reproducing a disc, it is necessary to install and remove the disc cartridge one by one from the recording and reproducing apparatus, which causes problems such as cumbersome operation and time consuming to replace the disc cartridge.

Therefore, the present inventor developed a multi-disc storage cartridge configured to hold a plurality of discs in one cartridge case. This multi-disc storage cartridge has a shaft provided at the corner of one cartridge case, and a plurality of disc holding plates that are held at right angles to the shaft and parallel to each other.The disc holding plates are provided with recesses to hold the discs. The disk holding plate is configured to be able to move the disk held in the recess from the inside of the cartridge case to the outside of the cartridge case by rotating the disk holding plate.

By the way, in order to effectively use this multi-disc storage cartridge, it is necessary to develop a disk ejecting device for ejecting an arbitrary disk holding plate from the cartridge case in the recording/playback device into which this multi-disc storage cartridge is installed. .

The present invention has been made based on such a need, and an object of the present invention is to provide a disc ejecting device that can take out any disc holding plate from the multi-disc storage cartridge configured as described above to the outside of the cartridge case.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention provides a system that includes a multi-disc storage cartridge mounted at a predetermined position in a recording/reproducing apparatus, so that the disc holding plate is coaxially aligned with the rotation axis of the disc holding plate. A rotating rod is provided, and the rotating rod holds a disc ejecting arm having an engaging portion at its tip that engages with a protrusion of the disc holding plate, and
An effective length variable device that changes the distance between the engaging portion of the disc ejecting arm and the rotation axis, and an arm height adjusting device that changes the height of the engaging portion of the disc ejecting arm. It is equipped with the following.

Note that each disc holding plate of the multi-disc storage cartridge used in the disc ejecting device of the present invention has protrusions formed at different positions on its sides to be hooked by the engaging portion of the disc ejecting arm. There is.

According to the above-described configuration, the rotating device rotates the rotating rod to set the disc ejecting arm at a predetermined angular position with respect to the protrusion on the side of the disc holding plate that holds the desired disc, thereby increasing the effective length. The variable device sets the effective length of the engaging portion of the disc ejecting arm to a length corresponding to the desired protrusion on the side of the disc holding plate, and the arm height adjustment device sets the effective length of the engaging portion of the disc ejecting arm to a length corresponding to the desired protrusion on the side of the disc holding plate, and the arm height adjusting device The height is set so that the engaging portion engages with the protrusion of the disk holding plate. As a result, the engaging portion of the arm for taking out the bad disk can be engaged only with the protrusion of the desired disk holding plate, and then by rotating the arm with the rotating device, the disk holding plate can be moved to the shaft. It can be rotated around the center and taken out of the cartridge case.Also, conversely, by bringing the tip of the arm into contact with the opposite side of the protrusion of the disk holding plate that has been taken out of the cartridge case, and rotating the arm in the opposite direction. , the disc holding plate can also be housed within the cartridge case.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. Third
The figure is a perspective view showing a multi-disc storage cartridge used with a disk ejecting device according to an embodiment of the present invention, and FIG. 4 is a horizontal sectional view thereof. In the figure, reference numeral 1 denotes a cartridge case having a rectangular shape as a whole, and has two side faces IA.

IB has a side wall, but the other two sides IC, ID7
-7 is open. 2 is a shaft located at a corner of this cartridge case. Reference numeral 3 denotes a plurality of disk holding plates held at right angles to this shaft 2 and parallel to each other, and a recess 5 for placing and holding a disk (not shown) is formed in the center, and a drive plate is formed on the bottom of the recess 5. A hole 6 for use and a hole 7 for recording and reproduction are formed. Further, the disk holding plate 3 is provided with a fitting hole 8 in a corner outside the recess 5, into which the shaft 2 is inserted, and the disk holding plate 3 is rotatably held relative to the shaft 2 by this fitting hole 8. ing.

More specifically, as shown in FIG. 5A, a disk holding plate supporting spacer 9 is tightly fitted onto the shaft 2, and the disk holding plate 3 can be placed on this spacer and rotated. Note that the structure for holding the shaft 2 of the disc holding plate 3 is not limited to the one shown in the drawings, and can be modified as appropriate. For example, as shown in FIG. The structure may be such that the cylindrical portion 3A is rotatable with respect to the shaft 2 and the cylindrical portions 3A are stacked. However, in this case, when one disk holding plate is turned, it is necessary to provide appropriate means to prevent other disk holding plates from turning together.

As shown in FIGS. 6 and 7, the shaft 2 is provided with arc-shaped cut grooves 1 corresponding to the respective disk holding plates 3.
0 is formed in the cut groove 10, and as can be clearly seen from FIG.
1 is engaged. The cut grooves 10 and claws 11 are for regulating the rotation angle of the disk holding plate 3. The rotation angle of the disk holding plate 3 is
It is set to be able to rotate approximately 90 degrees from a position where the disc is housed in the cartridge case 1 to a position where the recess for holding the disc is exposed outside the cartridge case. In addition, in FIG. 6, 12 is a screw for attaching the shaft 2 to the cartridge case 1.

On one side of the plurality of disk holding plates 3 attached to the cartridge case 1, there are protrusions 1 at different positions.
3 is formed. This actual note 9...-2 13 is for hooking on the disc ejecting arm of the recording/reproducing device, which will be described later. is located close to. The protrusion 13 may be simply linear, but it is preferable that the protrusion 13 has a recess 3A formed on the side surface to engage with the disc ejecting arm, as shown in FIGS. 8A and 8B.

Moreover, an arm insertion hole may be provided instead of this recess.

FIG. 1 is a schematic plan view of a multi-disk storage cartridge having the above structure installed in a recording/reproducing apparatus, and FIG. 2 is a side view thereof taken along the line nm. In FIG. 1, a rotary table 15 of the disk drive device is placed on the side of the multi-disc storage cartridge set in a predetermined position of the recording/reproducing device.
and a reading head 16 are arranged. The rotary table 15 and the reading head 16 are arranged so that when the disk holding plate 3 is rotated approximately 90 degrees from the cartridge case 1 of the cartridge and moved to the position shown by the two-dot chain line 3a, the disk held by the disk holding plate 3a is 10...-7, it is arranged at a position where recording and reproduction can be performed.

In FIGS. 1 and 2, reference numeral 18 denotes a disk ejecting device according to an embodiment of the present invention, which selects the disk holding plate 3 in the cartridge case 1, moves it to the two-dot chain line 3a position, and It is for moving in the opposite direction. This disk ejecting device 18 includes a rotating rod 19 arranged on the rotation axis XX at the center of the shaft 2 of the cartridge case 1, a first motor M1 that rotationally drives this rotating rod 19, and a first motor M1 fixed to the rotating rod 19. second motor M2
, an inclined screw @20 that is rotationally driven by this second motor M2, and a nut 21 that meshes with the screw shaft 20;
It has a disk ejecting arm 22 attached to the nut 2 so as to pass through the rotation axis XX, and a rotation stopper (not shown) for the NAND 21. The tip of the arm 22 is bent vertically to form an engaging portion 22A for the protrusion 13.
It consists of With this configuration, when the screw shaft 20 is rotated by the second motor M2, the arm 22 is held.

The arm 21 moves along the inclined screw shaft 20 and the arm 2
2 moves horizontally and also moves up and down, so
The distance between the engaging portion 22A at the tip of the arm 22 and the pivot axis XX, that is, the arm effective length l and the height of the engaging portion 22A at the tip of the arm can be changed. Here, when the arm effective length l is shortened to the position where the engaging portion 22A at the tip of the arm engages with the desired protrusion 13 of the disc holding plate 3, the engaging portion 22A descends to the position where it engages with the protrusion. The slope of the screw shaft 20 is determined so that the multi-disc storage cartridge is lowered from its actual position in FIG. 2 to make the drawing easier to understand. Therefore, in this embodiment, the second motor M2, the screw shaft 20, the nut 21
etc. constitute an effective length variable device that changes the distance between the engaging portion of the disc ejecting arm and the rotation axis, and an arm height adjusting device that changes the height of the engaging portion of the disc ejecting arm. do. For example, a stepping motor is used as the first motor and the second motor.

Next, how to use the multi-disc storage cartridge and the operation of the disc ejecting device will be explained.

Each disc holding plate 3 of the multi-disc storage cartridge
A multi-disc storage cartridge is stored with a disc held therein and the disc holding plate 3 housed in the cartridge case 1. When using the multi-disc storage cartridge, manually insert it into the recording/playback device as shown in Figures 1 and 2.
Alternatively, it can be attached using a suitable device.

Next, the operation of removing a desired disc holding plate 3 from the multi-disc storage cartridge will be explained. FIG. 9 is a diagram showing the operation sequence.
l. The second motor M2 operates to move the arm 22 to the initial position.

This initial point is the engagement portion 22A at the tip of the arm 22.
is the raised position, and therefore the arm effective length l is longer than the length that engages with any of the protrusions 13. Next, the first motor M1 is operated to rotate the rotary rod 19 to set the arm 22 at the desired angular position of the disk retainer 131, which engages the protrusion 13 of the plate 3 at -4 degrees.

Thereafter, the second motor M2 rotates to shorten the effective length of the arm 22 and set it to a length corresponding to the desired disk holding plate 3. As a result, the engaging portion 22A at the tip of the arm 22
As it approaches the rotation axis X - Thereafter, the first motor M1 operates to rotate the arm 22 approximately 900 degrees, thereby moving the disk holding plate 3 from the cartridge case 1 to the position indicated by the two-dot chain line 3a in FIG. Recording and reproduction of the disc is performed at this position.

If the arm 22 interferes with the recording and reproduction of the disc, operate the second motor M2 to extend the effective length of the arm 22 to a position where it does not interfere with the disc holding plate 3, and then turn the first motor M1 back on. The arm 22 is rotated and moved to an appropriate position.

After recording and reproducing are completed, the disk holding plate 3 is returned to the original cartridge case 1 by the same operation as described above.

14 l·-7 The above control is achieved by using a microcomputer and controlling the number of pulses supplied to the first motor and the second motor.
This can be easily implemented, for example, the circuit shown in FIG. 10 is used. In the figure, 24 is a microcomputer, 25 is a drive circuit for motor M (first motor or second motor), 26 is a sequencer, and 127 is a converter.

In addition, in the above embodiment, adjustment of the effective length of the arm 22,
The height position of the arm 22 is set using a common part (screw shaft 20
, Natsu 21, etc.), but
Alternatively, the arm effective length adjustment and the height adjustment may be performed separately by separate mechanisms.

Effects of the Invention As is clear from the above description, the present invention provides a rotary rod that is coaxial with the rotation axis of the disk holding plate of the multi-disc storage cartridge mounted at a predetermined position of a recording/reproducing device. , this rotary rod holds a disk ejecting arm having an engaging portion at its tip that engages with the protrusion of the disk holding plate, and the engaging portion of the disk ejecting arm and the rotating Since the device is equipped with an effective length variable device that changes the distance from the axis and an arm height adjustment device that changes the height of the engaging portion of the disk ejecting arm, the disk ejecting arm can be moved by the rotating device. , set at a predetermined angular position with respect to the protrusion on the side of the disc holding plate that holds the desired disc, and use the effective length variable device to adjust the effective length of the engaging portion of the disc ejecting device to the protrusion on the side of the disc holding plate that holds the desired disc. The length is set to correspond to the protrusion, and the arm height adjustment device is used to set the engagement part at the tip of the arm to a height that engages with the protrusion on the disk holding plate.
The engaging portion of the disc ejecting arm can be engaged only with the protrusion of a desired disc holding plate, and then the arm is rotated by a rotating device to rotate the disc holding plate around the shaft, The disc held on the disc holding plate can be taken out of the cartridge case, and recording and reproduction can be performed on the disc at that position, and the disc holding plate can also be stored inside the cartridge case by a similar operation. Thus, according to the present invention, it is possible to use a compact multi-disc storage cartridge in which a plurality of discs are stored in one cartridge case, thereby reducing the storage space for discs and making it easier to install the disc cartridge in a recording/playback device. , it is possible to obtain effects such as being able to reduce the frequency of extraction compared to the conventional method and shortening the time required for recording and reproducing.

[Brief explanation of drawings]

FIG. 1 is a plan view schematically showing the disc ejecting device and its surroundings of a recording and reproducing apparatus equipped with a disc ejecting device according to an embodiment of the present invention, and FIG.
-'-Schematic side view as seen in the n direction, shaft 17 1, -; side view in the Lute disk storage cartridge; Fig. 6 is a plan view showing a modification of the multi-disc storage cartridge; 8th - side perspective view , FIG. 9 is a sequence diagram for ejecting the disk holding plate, and FIG. 10 is a block diagram showing an example of a motor control circuit. 1...Cartridge case, 2...Shaft, 3.
... Disk holding plate, 5-recess, 6... drive hole, 7
... Recording/reproducing hole, 13... Protrusion, 15... Rotating table, 16... Reading head, 18... Disk ejecting device, 19... Rotating rod, 20... Screw shaft , 21...Nut, 22...Arm for taking out the disc. Name of agent: Patent attorney Toshio Nakao Haga 1 person No. 5
Figure 6 W (. Figure 9 Snow V 1 ^ n 581υ

Claims (2)

[Claims] (1) A rotating rod arranged on the same axis as the rotation axis of the disk holding plate of the multi-disk storage cartridge installed in a predetermined position, a rotating device that rotationally drives this rotating rod, and a protrusion of the disk holding plate at the tip. a disk ejecting arm that is rotatable while being held by the rotating rod; an effective length variable device that changes the distance between the engaging portion of the disk ejecting arm and the pivot axis; A disc ejecting device comprising: an arm height adjustment device that changes the height of an engaging portion of the disc ejecting arm. (2) The effective length variable device and the arm height adjustment device include a screw shaft tilted and held on a rotating rod, a means for rotating the screw shaft, and a nut that engages with the screw shaft, and the nut engages with the screw shaft. 2. The disk ejecting device according to claim 1, wherein said disk ejecting arm is held.