JPS6173267A - Condensed optical disk device - Google Patents

Abstract

PURPOSE:To correct a weight-unbalanced condition and improve the positioning accuracy of a medium to its housing and a read/write station, by fitting a counter weight for adjusting unbalance of rotating weight to a medium holding section. CONSTITUTION:A medium holding mechanism section 12 is advanced toward a housing 2 by means of a ball screw 11 and pulls a medium 1a into the mechanism 12 by grasping the protecting frame 1 of the medium 1a. A chassis 8b rotates upward or downward around a shaft 15 and inverts the medium 1a to a horizontal attitude, and then, inserts the medium 1a into a read/write station 3. Since the medium holding mechanism section 12 coupled with a base section 8a by means of the shaft 15 is offset from the shaft 15, the section 12 is very unstable under a vertical condition. However, the stability in the vertical condition is improved and the medium putting-in and taking-out operations to and from the housing 2 are smoothly performed, since the unbalance of the rotating weights is adjusted by fitting a counter weight 14.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a collective optical disk device that is an external recording device for a computer.

[Conventional technology]

In a collective optical disk device that stores the medium in a multi-stage storage, pulls out the medium from the storage, and reads/writes it at a horizontal read/write station, the medium is reversed by ±90° using the medium gripping mechanism. Store this in a hangar or lead/
Must be transported to a light station.

In a conventional medium gripping mechanism, the rotation axis of the mechanism overlaps the medium loading/unloading passage, so the medium gripping mechanism is offset from the reversing rotation axis.

[Problem that the invention seeks to solve]

As a result, an imbalance of weight with respect to the rotating shaft occurs,
The accuracy of media positioning relative to the hangar read/write station was adversely affected.

The present invention solves the above-mentioned problems, and improves the positioning accuracy of media with respect to hangars and read/write stations by adjusting the unbalance of the rotational weight of the media gripping mechanism. ,#,
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[Means for solving the problem] The present invention comprises a storage 2 for storing a double-sided readable/writable flat optical disk medium 1a housed in a protective frame 1, and a read/write station 7 for processing the medium. /3 and rotation axis 1
a medium gripping mechanism section 12 that grips the medium at a position eccentric from 5 and rotates around the rotation axis to reverse the medium; This is a collective optical disk device characterized in that the medium gripping mechanism section 12 is provided with a balancer 14 that aligns the center of gravity of the mechanism section with the rotation axis.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external view of a collective optical disk device that is an embodiment of the present invention.

There is a hangar 2 in which a plurality of double-sided readable/writable flat optical disk media 1a housed in a protective frame 1 are stored.
A read/write station 3 for processing media is installed below the hangar 2.

On the other hand, between the hangar 2 and the read/write station 3,
The accessor mechanism 4 that grips and transports the medium is located in the hangar 2.
It is guided by an upper rail 5 and a lower rail 6 that are installed parallel to the , and is moved horizontally by a rack & period/7.

Further, the holding part 8 is guided by a guide rod 9 and is attached to the ball screw 1.
6 to move vertically. The holding part 8 is composed of a base part 8a and a grip part 8b, and the grip part 8b holds a medium and is guided by a guide rod 10, and a medium gripping mechanism part 12 that moves forward and backward by a ball screw 11 is connected to a rotating shaft 15. It is mounted so that it can rotate around the center. 7 more years 7 parts 8b
A gear 13 is attached to rotate the mechanism section 12, and a counterweight 14 as a balancer is installed to align the center of gravity of the mechanism section 12 on the rotation axis 15.

In the embodiment, the accessor mechanism 4 is located at one of the locations within the hangar 2.
The medium is positioned horizontally and vertically by the rack and pillion 7 and the ball screw 16 and stands still.

Next, the medium gripping mechanism 12 moves forward toward the storage 2 by the ball screw 11, grips the protection frame 1 of the medium 1a, and draws the medium 1a into the medium gripping mechanism 12 through the medium loading/unloading passage 12a. After determining which side of the medium is to be read/written, the /yarn 8b rotates upward or downward about the rotation axis 15, flips the medium to a horizontal position, and transfers it to the read/write station 3. insert.

After the read/write processing, the medium is drawn into the yarn section 8b again, rotated to invert the medium 1a to a vertical position, and returned to the storage 2.

Since the medium gripping mechanism 12 connected to the base part 8a by the rotation shaft 15 is offset from the rotation shaft 15, the medium gripping mechanism 12 that takes media in and out of the storage 2 is very unstable in the vertical position. However, in the present invention, since the unbalance of the rotating weight is adjusted by attaching the counterweight 14, the stability in this vertical state is improved, and the operation of loading and unloading the medium from the hangar 2 can be performed smoothly. Ru.

〔Effect of the invention〕

As explained above, the present invention corrects the weight imbalance by attaching a counterweight for adjusting the rotational weight imbalance to the medium gripping part, and improves the positioning accuracy of the medium with respect to the hangar and the read/write stay/y/o. It has the effect that it can.

[Brief explanation of drawings]

FIG. 1 shows an embodiment of the invention. FIG. 2 is an external view of a collective optical disk device. 1a... Optical disk medium, 2...
- Hangar, 3... Read/write station, 12-... Medium gripping mechanism section, 14... Counterweight (balancer), 15-...
...Rotating shaft patent applicant: NEC Corporation - :, Representative patent attorney: Naka Kanno'.
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Claims (1)

[Claims] (1) A storage for storing a double-sided readable/writable flat optical disk medium encased in a protective frame, a read/write station for processing the medium, and a rotating shaft that grips the medium at a position eccentric to the rotation axis. a medium gripping mechanism that rotates around an axis to invert the medium; and an accessor mechanism that transports the medium gripping mechanism between the storage and the read/write station, the medium gripping mechanism comprising: A collective optical disk device comprising a balancer that aligns the center of gravity of the mechanism section with the rotation axis.