JP2573563B2 - Collective disk unit - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a collective disk device, and more particularly to the structure of an accessor mechanism thereof.

[Conventional technology]

In the medium gripping mechanism of the conventional collective optical disc device, a hand for gripping the medium and a solenoid for pushing and opening the hand are connected, and the hand is closed and the medium is gripped and fixed to the gripping mechanism. I have.

[Problems to be solved by the invention]

In the conventional apparatus, since the medium is fixed to the gripping mechanism and has little degree of freedom, when the medium is taken in and out of the hangar, if the center of the guide frame of the hangar and the center of the guide frame of the accessor mechanism are misaligned, Media cannot be placed in the hangar. Further, if a large gap is provided between the guide frame and the medium so that the medium can be inserted, the medium cannot be stored properly at a predetermined position, or the medium storage density in the apparatus decreases.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a collective disk device having an accessor mechanism that allows a disk medium contained in a protection frame to be smoothly taken in and out of the storage cabinet even if the center of the medium storage and the center of the accessor mechanism are shifted. .

[Means for solving the problem]

According to the present invention, a hangar for accommodating a plurality of disk media on a flat plate in a protective frame, a medium processing unit for processing the medium, and holding the medium between the hangar and the medium processing unit A collective disk device having an accessor mechanism for transporting the medium, the accessor mechanism having a hand, a solenoid, and a spring, wherein the hand grips the medium by the spring, and releases the grip by the solenoid. A collective disk device is obtained in which the solenoid contacts the hand only when the solenoid is operating.

〔Example〕

Next, the present invention will be described in more detail with reference to the drawings showing an embodiment of the present invention.

Referring to FIG. 1, one embodiment of the present invention has a storage 2 in which a plurality of media 1 in a protective frame are stored, and the media 1 are arranged at equal intervals by a guide frame 4, and A read / write station 3 for performing medium processing is provided below.

On the other hand, an accessor mechanism 5 that grips and transports a medium between the hangar 2 and the read / write station 3 is supported by a lower rail 8 and an upper rail 7 installed in parallel with the hangar 2 and moves in a horizontal direction. I do. Gripper 6 for gripping the medium
Is moved up and down by a ball screw 10 guided by a guide rod 9. A hand 11 and a solenoid 12 reciprocate toward the housing 2 with a ball screw 13 in the gripping portion 6 to take in and out the medium. A guide frame for supporting the medium also in the gripping portion 6
14 are provided.

As a normal operation of the accessor mechanism 5, the X motor 15 and the Y motor 16 are positioned at the position of one medium in the storage in the horizontal and vertical directions, respectively, and stand still. Next, the hand 11 is pushed open by the solenoid 12 and
The motor 17 moves forward toward the hangar 2. When the hand 11 hits the target medium protection frame, the hand 11
Is stopped by the force of the spring 18 by stopping the operation of
Hold a part of the medium protection frame. Again, the Z motor 17 rotates in the reverse direction and is drawn into the gripper 6. This medium is inserted into the read / write station 3, processed, and then returned to a predetermined storage. The above is a series of operations.

Next, the detailed operation of the gripper will be described with reference to FIGS. When the hand 11 opens, the solenoid body 12
The solenoid shaft 19 is excited at the position A (the fourth position).
The solenoid shaft 19 moves to the position shown in FIG. Here, referring to FIG. 4, the front end portion 19a of the solenoid shaft is machined into a conical shape, whereas the rear end portion 11a of the hand which is in direct contact with the front end portion 19a of the solenoid shaft is similarly inwardly conical. It is processed into a shape. For this reason,
Even if the center position of the solenoid shaft 19 and the center position of the hand 11 are out of contact with each other, the front end 19a of the solenoid shaft and the rear end 11a of the hand are finely adjusted along the conical side surface and are automatically aligned. Is done. When the hand 11 grasps the medium, the excitation of the solenoid is released and the hand 11 is
Grips a part of the medium protection frame 1. Solenoid shaft
19 has a stopper 20 so that it does not fall out of the solenoid body 12.
Is added. When the gripper 6 reciprocates while the hand 11 grips the medium protection frame 1, the accessor mechanism 5
Even if the center of hangar 2 and the center of hangar 2 are
Since the motor 11 is normally separated from the solenoid shaft 19, it has a degree of freedom in the left-right direction as shown in FIG.

More specifically, when the solenoid 12 is first excited, the front end portion 19a of the solenoid shaft moves in the protruding direction by the generated force and presses the rear end portion 11a of the hand. Subsequently, the force of the solenoid shaft distal end portion 19a is transmitted to the link mechanism 11b, and the distal ends of the pair of hands 11 are guided by the guide shaft 22a attached to the hand support frame 22, and open to both sides.

At this time, since the front end portion 19a of the solenoid shaft and the rear end portion 11a of the hand engage in a conical portion, the center positions of the pair of hands 11 are aligned with the center position of the solenoid shaft 19.

Next, when the solenoid 12 is de-energized, the hand 11 grips the medium due to the contraction force of the spring 18. In this state, the solenoid shaft 19 can move freely by the stroke from the solid line to the one-dot chain line shown in FIG. 4, so that the hand 11 is moved by the radial clearance of the conical member provided at the rear end 11 of the hand. Is the guide shaft 22a
You can move freely in the left and right directions using

〔The invention's effect〕

The present invention separates the solenoid shaft and the hand of the medium gripping mechanism in the accessor mechanism, does not pry when inserting and removing the medium from the medium storage, and performs smoothly,
This has the effect of increasing the medium packaging density in the device.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment of the present invention, and FIGS.
FIG. 3 is a top view, a side view, and an operation explanatory view of the medium gripping mechanism of the embodiment shown in the figure. 1 ... optical disk medium, 2 ... hangar, 3 ... lead /
Light station, 5: Accessor mechanism, 11: Hand, 12: Solenoid, 18: Spring.

Claims (1)

(57) [Claims] 1. A hangar for accommodating a plurality of disk media on a flat plate in a protective frame, a medium processing unit for processing the medium, and holding the medium between the hangar and the medium processing unit. A collective disk device having an accessor mechanism for transporting the pair of hands, a pair of hands on a gripper for gripping the medium mounted on the accessor mechanism, a guide shaft movably supporting the pair of hands, A solenoid for opening the hand and a spring for closing the pair of hands are provided. Further, a conical groove is provided at a rear end of the hand, and a conical protrusion is provided at a tip of the shaft of the solenoid. And a rear end of the hand and a front end of the solenoid are arranged at positions where they engage with each other, and the hand grips the medium by the spring, and Is operated to release its grip by id, and during operation of the solenoid contact pressing the rear end portion of the distal end portion of the shaft of the solenoid is the hand,
A collective disk drive, wherein a tip of a shaft of the solenoid is separated from a groove at a rear end of the hand when the solenoid is not operated.