JPS6349889Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a disk jacket for housing a disk-shaped recording medium (disk) used in a recording/reproducing device for recording or reproducing information.

Configuration of conventional examples and their problems In recent years, playback-only devices or recording/playback devices using disks have been used as a means to file video information and document information and search each piece of information at high speed. In equipment, generally,
Since one disk is manually replaced and installed,
The amount of information that could be processed at one time was limited. In contrast, information processing systems that can store large amounts of information in files and search it at high speed,
It is requested in various fields. To do this, it is necessary to store a plurality of disks, exchange any desired disk quickly and automatically, and install it in a player such as an optical recording/playback device that plays or records/plays information. There is a need for a disk changing device (hereinafter referred to as an autochanger) that reproduces or records predetermined information, and along with this, a disk jacket that can be applied to the autochanger is desired.

Conventionally, such disk jackets include a jacket-type jacket that stores a disk inside the jacket for use with video disks, and allows the disk to be inserted into the player's turntable together with the jacket manually without touching the disk directly. However, in order to mount the disc on the turntable, it is necessary to pull out only the jacket. Furthermore, when replacing the disk, an empty jacket must be inserted again, which not only requires more time than necessary to mount or unmount the disk on the turntable, but also complicates the structure. Therefore, it has been desired to develop a disk jacket for an autochanger that requires high-speed retrieval.

Purpose of the invention In view of the above-mentioned problems, the present invention searches for any desired disk jacket at high speed from a plurality of disk jackets containing disks, and automatically records information on the disk or information recorded on the disk. The object of the present invention is to provide a disk jacket that can be applied to an autochanger that regenerates.

Structure of the Invention The disk jacket of the present invention rotatably accommodates a disk having an engagement hole for driving in the center thereof, and has a rotary drive body for rotationally driving the disk to a position facing the engagement hole. a housing having a center hole through which a disc can be inserted, and an opening through which a head for recording and reproducing information on the disk can be inserted; The disc is made up of an engaging part that fits together with the external member, and the disc can be taken out and replaced together with the disc jacket by engaging the engaging part and the external member.

DESCRIPTION OF EMBODIMENTS FIG. 1 is a plan view of a disk housed in a disk jacket according to an embodiment of the present invention.
In FIG. 1, a disk 1 has a recording area 4 defined by a small diameter circle 3a and a large diameter circle 3b, in which a recording material is provided, and a recording material is provided in the outer and inner peripheries of the recording area 4. Non-recording area 5
have. An engagement hole 2 formed in the center of the disk 1 engages with a drive shaft of a rotational drive body (hereinafter referred to as a motor) to be described later, and rotatably supports the disk 1 to the motor. 7 indicates the outer peripheral side of the disk 1.

FIG. 2 is a plan view of a disk jacket according to an embodiment of the present invention, and FIG. 3 is a back view thereof.
FIG. 4 is a sectional view taken along line A-A' in FIG.

In FIGS. 2 to 4, the disk 1 is rotatably housed with a gap 9 in a disk jacket 8 consisting of an upper housing 8a and a lower housing 8b. The disk jacket 8 is provided with a pair of concave engaging portions 10 for pulling out the disk on its outer side in the direction of arrow c, which is the direction of pulling out from the stocker, which will be described later. Reference numeral 11 denotes a through hole for a clamper for fixing and holding the disk 1 on the turntable of the device, and 12 is a through hole provided on the outer side of the disk jacket 8 in a direction perpendicular to the direction of arrow C, which is the direction in which the disk jacket 8 is pulled out. This is a groove for positioning the disk jacket 8.
The disk jacket may have at least one positioning groove 12, and although it is shown as semicircular in the drawing, it may be U-shaped or V-shaped. An opening 13 is used for mounting the disc 1 on the turntable of the device and for opening an optical head 16 for recording or reproducing information.
It was established for the purpose of transportation.

Next, a schematic structure of an autochanger applied to the disk jacket of the present invention will be explained with reference to FIG.

Reference numeral 17 denotes a stocker which stores a plurality of disk jackets 8, and is moved to B by stocker moving means 20.
It is held movable in the direction. Reference numeral 21 denotes a drawer mechanism, which is movable in the C direction along a drawer mechanism guide 22. Reference numeral 28 denotes a player base, which has a turntable 15 that fits into the engagement hole 2 of the disc 1, a motor 24 that rotates the disc 1, and a signal recorder that records information on the disc 1 or reproduces recorded information. An optical head 25 for reproduction, a transfer means 26 for transferring the optical head 25 in the radial direction of the disk 1, and a clamper 27 movable in the direction of arrow D and fixing the disk 1 on the motor 24 are mounted. .

The storage state of the disk jacket and its operation in the autochanger constructed as above will be explained with reference to FIGS. 6 to 8. In FIG. 6, reference numeral 17 is a stocker for storing a plurality of disk jackets 8. Normally, the disk jackets 8 are located between the upper groove 18 and the lower groove 19 of the stocker 17.
positioned in the direction. Further, positioning of the disk jacket 8 within the stocker 17 in the direction of arrow C is performed by a positioning member 16. The positioning member 16 is composed of a roller 30 supported by a spring member 29, as shown in FIG.
2 to position and hold the disk jacket 8 within the stocker 17. Drawer mechanism 2 for moving the disk jacket 8 in the direction of arrow C
1 and the engaging portion 10 of the disk jacket 8, and the drawer portion 21A and the side portion of the disk jacket 8 are separated by a small space. Reference numeral 23 designates a drawer guide rail for guiding the disk jacket 8 when the disk jacket 8 is moved by the drawer mechanism 21 in the direction of arrow C.

The end of the drawer guide rail 23 is tapered so that the disk jacket 8 can be slid smoothly. Therefore, when attempting to search for the disk jacket 8 that houses the disk 1 having desired information, the stocker 17
is moved in the direction of arrow B, and the corresponding disk jacket 8 is moved to a location opposite the drawer mechanism 21. At this time, the plurality of disc jackets 8 stored in the stocker 17 are positioned and held within the stocker 17 by the positioning member 16, so that the drawer part 21A is connected to the side part of the disc jacket 8 and the engaging part 10. never come into contact with. When the desired disk jacket 8 is moved to the drawer mechanism 21, the drawer mechanism 2
1 begins to be moved rightward in the drawing along a pull-out mechanism guide 22 by a disk pull-out mechanism (not shown). At the same time, the drawer section 21
Since A comes into contact with the engaging portion 10, the pull-out portion 21
As A moves, the disk jacket 8 is moved to a position facing the turntable 15 shown in FIG. 8A toward the right in the drawing. disk jacket 8
As shown in FIG. 8B, by a disk mounting mechanism (not shown), the disk positioning member 14 protruding from the turntable 15 enters the through hole 11 of the disk jacket 8, and the engaging hole 2 of the disk 1 is inserted into the hole 11 of the disk jacket 8. , and the disc 1 is placed on the turntable 15. After that, the clamper 27 descends,
By entering the through hole 11 of the disk jacket 8 and pressing the disk 1 toward the turntable 15, the disk 1 is kept fixed. At this time, the disk 1 is positioned with a gap 9 between it and the inner wall of the disk jacket 8, and is mounted by the disk mounting mechanism so that it can rotate within the gap 9 without coming into contact with the inner wall of the disk jacket 8. Ru. Thereafter, the motor 24 rotates and the optical head 25 is moved in the direction of arrow E, which is the radial direction of the disk 1, thereby reproducing predetermined information. During this time, the stocker 17 continues to stop at the position where the disk jacket 8 is pulled out. Therefore, the search for the given information is then completed,
When searching for second information held by another disk, the disk 1 is released from being fixed by the clamper 27 when the motor 24 stops, and the disk mounting mechanism, together with the disk jacket 8,
The eighth part that engages with the drawer part 21A of the drawer mechanism 21
Return to the position in Figure A. Furthermore, when the drawer mechanism 21 moves in the direction of the stocker 17 along the drawer guide 22, the drawer part 21A of the drawer mechanism 21
The disk jacket 8 is inserted into the stocker 17 by pushing the side of the disk jacket 8. The movement of the pull-out mechanism 21 stops at the position shown in FIG. 9, but at this time the roller 30 has slightly entered the positioning groove 12 of the disk jacket 8, and the roller 30 is rotated by the pressing force of the spring member 29. Then, the positioning groove 12 and the roller 30 are engaged, and the disk jacket 8 is positioned at the position shown in FIG.

As described above, according to this embodiment, the disk jacket 8 that rotatably stores the disk 1 has the engaging portion 10 that engages with the drawer portion 21A provided in the device, and a plurality of disk jackets 8. By providing the positioning groove 12 that engages with the positioning member 16 in the stocker 17 for storing disc jackets, when any disc jacket 8 is pulled out from the stocker 17, the engaging part 10 can be engaged with the pull-out part 21A. , the drawer section 21A is attached to another disk jacket.
The stocker 17 can be moved without contacting the
When the engaging portion 10 engages with the pull-out portion 21A, the disk jacket 8 can be automatically pulled out, and the disk 1 can be pulled out from the disk jacket 8 while the disk 1 is stored in the disk jacket 8.
Since recording and reproducing can be performed without contacting the inner wall of the disc, it can be sufficiently applied to an autochanger that changes discs at high speed.

According to the embodiment described above, a pair of engaging portions 10 are provided in the direction in which the disk jacket 8 is pulled out, but it is also possible to provide only one of the engaging portions 10, or to provide a pair of engaging portions 10 on opposite sides in the C direction in which the disk jacket 8 moves. By providing this, the disk jacket 8 may be pulled out from two directions. In addition, the engaging portion 10
By providing openings 13 on both sides through which the optical head 25 enters, recording and reproduction may be made possible on both sides of the disk 1. Further, when the disk jacket 8 is stored in the stocker 17, the disk jacket 8 is pushed into the specified position of the stocker 17 by the drawer mechanism 21, and the drawer portion 21A is moved to a position where it does not come into contact with the disk jacket 8. Accordingly, it is not necessary to provide the positioning groove 12.

Effects of the invention The disk jacket of the present invention has an engaging part that engages with an external member on the outer periphery of the casing that rotatably stores the disk. Since the disk jacket can be automatically attached to and removed from the device without removing the disk from the storage device, any disk jacket can be automatically replaced at high speed from a stocker that stores multiple disk jackets containing a huge amount of information. be able to. Also,
Automatic replacement is possible, so you don't have to touch the disk directly and avoid fingerprints or dirt.
Also, there is no possibility of accidentally damaging the disk during handling. Therefore, its practical effects are great.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a disk housed in a disk jacket according to an embodiment of the present invention, FIG. 2 is a front view of a disk jacket according to an embodiment of the present invention, and FIG. 3 is a diagram of the same disk jacket. 4 is a cross-sectional view taken along the line A-A' in FIG. 2, FIG. 5 is a plan view of the disk exchange device applied to the disk jacket of the present invention, and FIG. 6 is a perspective view of the main parts thereof. , FIGS. 7 to 9 are cross-sectional views showing the operation of the same essential parts. DESCRIPTION OF SYMBOLS 1... Disc, 2... Engaging hole, 8... Disc jacket, 8a... Upper housing, 8b... Lower housing, 10... Engaging portion, 11... Through hole, 12...
Positioning groove, 13...opening.

Claims (1)

[Scope of utility model registration request] A disk jacket comprising a disk on which information signals are recorded and reproduced, and a casing that rotatably houses and encloses the disk, the casing into which a rotary drive body for rotationally driving the disk can be inserted. an opening into which a head for recording and reproducing information can be inserted, an engaging portion for transporting the casing by an external transport member; A disk jacket characterized by being provided with a positioning groove for engaging and positioning a positioning member.