JPH0370305B2 - - Google Patents

Description

TECHNICAL FIELD The present invention relates to an aggregate disk device, and more particularly to an aggregate optical disk device having an accessor mechanism used in a multi-part storage device of a computer.

(Prior Art) A collective optical disk device includes a vertical multi-stage storage for storing a plurality of optical disk media, and a read/write storage for reading/writing the optical disk media in a horizontal position.
It is composed of a write station and an accessor mechanism that transports the optical disk medium between the storage and the read/write station.In particular, the accessor mechanism, which is the medium transport mechanism, has a high operating speed as well as an access mechanism that transports the optical disk medium between the storage and the read/write station. Positioning accuracy is required.

Furthermore, this collective optical disk device has a picker mechanism in the accessor mechanism for loading and unloading optical disk media into and from the storage and the read/write station. This picker mechanism has a mechanism that rotates ±90 degrees to insert media between the storage and the read/write station. However, this picker mechanism has a cantilever mechanism at a position opposite to the medium path because the rotating shaft of the reversing mechanism overlaps the medium passage.

Therefore, when a conventional collective optical disk device supports a cantilevered picker mechanism, for example, a medium with a diameter of 30 cm, the weight of the cantilever is added, causing the picker mechanism itself to flex. This has the disadvantage that positioning accuracy is adversely affected, and if the structure is made rigid to avoid deflection of the picker mechanism, the overall weight of the accessor mechanism increases and the operating speed of the accessor mechanism is reduced.

As shown in FIG. 1, a conventional collective optical disk device incorporates a stocker 2 in which a plurality of optical disk media 1 with cages are arranged in parallel, and a picker mechanism 5.
It has an accessor mechanism 4 that moves the front side of the stocker left and right while moving it up and down, and a read/write station 3 that reads/writes the optical disk medium 1. The accessor mechanism 4 moves the medium 1 from the stocker 2 and horizontally inserts the medium 1 into the read/write station with one of the designated surfaces facing in a certain direction. At the read/write station, the carrier of the medium is removed and read/write processing is performed on either side. In particular, the medium 1 is gripped by the hand 9 on the picker 6 of the picker mechanism 5, and is once taken into the picker mechanism by the interlocking action of the motor 8 and the spline 10. Further, the medium 1 is brought into a position to be inserted into the read/write station 3 by rotating the picker mechanism 5 by the motor 7 to +90 degrees or -90 degrees in the direction of arrow A.

In this case, since the picker mechanism 5 is held in a cantilevered state via the motor 7, it is necessary to make the connection part with the motor 7 and the structure of the picker mechanism 5 strong, but the tip of the picker mechanism 5 is bent. I was afraid. Therefore, the conventional collective optical disk device has the disadvantage that if the tip of the picker mechanism 5 has a large bending, it becomes difficult for the accessor mechanism 4 to insert the medium 1 into the read/write station 3 or return it to the stocker 2. It had

(Object of the Invention) The object of the present invention is to eliminate the drawbacks of the conventional collective optical disk device, improve the positioning accuracy of the picker mechanism by holding both ends of the picker mechanism of the accessor mechanism, and increase the operating speed of the accessor mechanism. An object of the present invention is to provide an improved collective optical disk device.

(Structure of the Invention) According to the present invention, there is provided a storage for storing a double-sided readable/writable optical disk medium, a read/write station for processing the medium, and an accessor mechanism for transporting the medium between the two. A collective optical disk device comprising: a picker mechanism provided in the accessor mechanism for taking out and rotating the medium from the storage; and means for supporting both ends of a rotating shaft of the picker mechanism. An optical disk device is obtained.

(Example) An example of the present invention will be described with reference to the drawings.

FIG. 2 shows a collective optical disk device which is an embodiment of the present invention.

In FIG. 2, this embodiment includes a storage 22 for vertically storing double-sided readable/writable optical disk media 21, a read/write station 23 for processing the medium 21 horizontally, and a /Accessor mechanism 2 for transporting the medium 21 between the light station 23 and the light station 23
4, which includes a picker mechanism 25 provided in the accessor mechanism 24 for gripping the medium 21 and rotating it by ±90 degrees.

The accessor mechanism 24 is equipped with a picker mechanism 25, which is moved in the direction of the arrow X by a motor 28a, and moved in the direction of the arrow by a motor 28b. The picker mechanism 25 is separated into an outer frame 31 and an inner frame (rotating part) 32, and the inner frame 32 is fitted into left and right bearings 33 so as to rotate by ±90 degrees with respect to the outer frame 31.

The inner frame 32 has a picker 26 having a hand 29 for gripping the medium 21, a motor 28c and a spline 30 for moving the medium 21 in the direction of arrow Z. The inner frame 32, which is a rotating part, is held at left and right positions of the inner frame by bearings 33 having an inner diameter larger than the outer dimensions of the medium. A gear 34 is provided on one bearing 33 of the inner frame 32, and the inner frame 32 is configured to be rotated by ±90 degrees in the direction of arrow A by a rotary motor 27 fixed to the outer frame 31 via the gear 34.

Next, the operation of this embodiment will be explained.
The accessor mechanism 24 is positioned at a desired medium 21 in the hangar 22 based on a command from a control device (not shown), and the picker mechanism 25 moves a picker 26 and hand 29 in the direction of arrow Z by a motor 28c. The medium 21 is taken out and inserted into the inner frame 32.

Next, the accessor mechanism 24 moves the picker mechanism 25 to the read/write station 23, and the picker mechanism 25 moves the inner frame 32 to the rotating motor 27.
The medium 21 is rotated 90 degrees in the direction of arrow A to position the medium 21 horizontally.

When the picker mechanism 25 is positioned at the read/write station 23, the picker mechanism 25 moves the medium 21 to the motor 28.
c to the read/write station 23.

In this way, in this embodiment, the medium is loaded and unloaded, but since the rotating part 32 is supported by the bearings 33 at both ends, the medium can be loaded and unloaded from the read/write station 3 and the stocker 2 without causing any deflection at the tip of the picker mechanism. can be easily inserted into the

FIG. 3 shows a collective optical disk device according to another embodiment of the present invention. In FIG. 3, another embodiment is similar to the embodiment shown in FIG. 2, in which a storage 42 stores a double-sided readable/writable optical disk medium 41 vertically, and a storage compartment 42 stores the medium 41 horizontally. a read/write station 43; an accessor mechanism 44 for transporting the medium 41 between the hangar 41 and the read/write station 43; and an accessor mechanism 44 provided on the accessor mechanism 44 for gripping the medium and holding the medium at an angle of ±90°. It includes a picker mechanism 45 for rotating.

The accessor mechanism 44 is configured to move in the direction of arrow X by a motor 48a, and to move the picker mechanism 45 in the direction of arrow Y by a motor 28b. The pick mechanism 45 is composed of an outer frame 51 and an inner frame 52 which is a rotating part.
is rotatably supported via a bearing 55a attached to the arm 55. The inner frame (rotating part) 52 includes a picker 46 having a hand 49 that grips the medium 41, a rail 52a that slides the medium 41 into the frame, a motor 48c that moves the medium 41 in the direction of arrow Z, and a spline 50.
and a gear 54 for rotating the frame 52 by ±90 degrees in the direction of arrow B by a rotary motor 47 fixed to the outer frame 47.

The center of rotation of the inner frame 52 and the center of the picker hand 49 are offset from each other in order to avoid obstructing the insertion and removal of the medium 41.

The picker mechanism 45 holds the inner frame 52 in a vertical state and picks up the medium 41 from the storage 42 with the picker hand 49 and inserts it into the inner frame 52. Next, the picker mechanism 45 moves the inner frame 5 through the gear 54 by the rotary motor 47.
Rotate 2 by 90 degrees. Further, the picker mechanism 45 is positioned at the read/write station by motors 48a and 48b, and inserts the medium 41 into the read/write station.

As described above, in the embodiment of the present invention, in a collective optical disk device using a medium capable of double-sided read/write processing, the rotational support point of the rotating part of the picker mechanism that rotates the medium is set to the point of rotation for the media loading/unloading operation of the picker mechanism. It is constructed with a picker mechanism that is supported at both points and has a trouble-free structure and does not cause deflection of the picker mechanism.

(Effects of the Invention) As explained above, the present invention provides a structure in which the rotating part of the picker mechanism in the accessor mechanism is supported at both ends in the direction of media loading and unloading, thereby making the picker mechanism support structure of the accessor mechanism more solid. This has the effect of eliminating deflection that adversely affects the positioning accuracy of the picker mechanism.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a conventional collective optical disk device.
FIG. 2 is a diagram showing an embodiment of the invention, and FIG. 3 is a diagram showing another embodiment of the invention. 21,41...media, 22,42...hangar,
23, 43...read/write station, 2
4,44...Accessor mechanism, 25,45...Picker mechanism, 26,46...Picker, 27,47...
...Rotating motor, 28a, 28b, 28c, 48
a, 48b, 48c...Motor, 29, 49...
Hand, 30, 50... Spline, 31, 51
...Outer frame, 32, 52...Inner frame (rotating part), 33,
55a...Bearing, 34,54...Gear,
55...Arm.

Claims (1)

[Claims] 1 A storage for storing double-sided readable/writable optical disk media, and a read/write unit for processing said media.
In a collective optical disk device having a light station and an accessor mechanism for transporting the medium between the two, a picker mechanism provided in the accessor mechanism takes out the medium from the storage and rotates it; 1. A collective optical disk device comprising means for supporting both ends of a rotating part.