JPH0341915B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application 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.

BACKGROUND TECHNOLOGY In recent years, playback-only devices or recording/playback devices using disks have been used as means for filing video information and document information and searching each piece of information at high speed. teeth,
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 there is a need for a disk jacket that can be applied to the autochanger.

Conventionally, such disk jackets include jacket-type jackets that house the disk inside for video disks, allowing the jacket and disk to be manually inserted onto the turntable of a repeater without touching the disk directly. It is something.

Problems to be Solved by the Invention However, in the conventional disk jacket described above, in order to mount the disk 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.

In view of the above problems, the present invention searches for an arbitrary disk jacket at high speed from among a plurality of disk jackets storing disks, and automatically records information on the disk or reproduces information recorded on the disk. The present invention provides a disk jacket that can be applied to an autoscientist.

Means for Solving the Problems In order to achieve the above object, the disk jacket of the present invention includes a disk on which information signals are recorded and reproduced, and a casing that rotatably houses and encloses the disk. The casing has a center hole into which a rotary drive body for rotationally driving the disk can be inserted, and a head insertion opening into which a head for recording and reproducing information on the disk can be inserted. and a pair of engaging portions for transferring the casing by an external transfer member, and a positioning groove for engaging and positioning the external casing positioning member, and the engaging portion It is characterized by being provided at symmetrical positions on both sides of the side edge.

Effect With the above configuration, the disk can be taken out and replaced together with the disk jacket by the engagement between the engaging portion and the external transfer member, and the exchange is stabilized by supporting the pair of engaging portions on both sides of the jacket. It can be transported in a fixed form. Further, the posture can be reliably maintained in a stocker or a playback device.

Embodiment Hereinafter, a disk jacket according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view of a disk housed in a disk jacket in one 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 recording material is provided, and recording materials 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 is engaged with a drive shaft of a rotational drive body (hereinafter abbreviated as a motor) to be described later, and the disk 1 is rotatably supported by the motor. 7 is disk 1
shows the outer circumferential side.

FIG. 2 is a plan view of a disk jacket in one embodiment of the present invention, and FIG. 3 is a back view of the disk jacket,
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 inside 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 to 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 is designed for 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 denotes a stocker for storing a plurality of disk jackets 8. Normally, the disk jackets 8 are stored between an upper groove 18 and a lower groove 19 of the stocker 17, and are positioned in the direction of arrow B. has been done. 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. Holds positioning. The drawer portion 21A of the drawer mechanism 21 for moving the disk jacket 8 in the direction of arrow C 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. are doing. Reference numeral 23 denotes a drawer guide rail that guides the disk jacket 8 when the disk jacket 8 is moved in the direction of arrow C by the drawer mechanism 21.

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 position where the drawer mechanism 21 is opposite. At this time, the plurality of disk jackets 8 in which the stocker 17 is stored are stored in the stocker 1.
Since the pull-out portion 21A is positioned and held within the disk jacket 7 by the positioning member 16, the side portion of the disk jacket 8 and the engaging portion 10 do not come into contact with the pull-out portion 21A. When the desired disk jacket 8 is moved to the drawer mechanism 21, the drawer mechanism 21
begins to be moved rightward in the drawing along the pull-out mechanism guide 22 by a disk pull-out mechanism (not shown). At the same time, the drawer section 21A
comes into contact with the engaging portion 10, so the pull-out portion 21A
With this movement, the disk jacket 8 is moved to a position facing the turntable 15 shown in FIG. 8A in the right direction of the drawing. disk jacket 8
As shown in FIG. 8B, by a disk mounting mechanism (not shown), the disk positioning member 14 protruded by 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.
is placed. Thereafter, the clamper 27 descends, enters the through hole 11 of the disk jacket 8, and presses the disk 1 toward the turntable 15, thereby fixing and holding the disk 1. 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 moves in the radial direction of the disk 1 in the direction of arrow E.
By moving in the direction, predetermined information is reproduced. During this time, the stocker 17 continues to stop at the position where the disk jacket 8 is pulled out. Therefore, when the search for the predetermined information is completed and the second information held by another disk is to be searched, the disk is released from the clamper 27 when the motor 24 is stopped, and the disk jacket 8 and the disk are released. The disk mounting mechanism returns to the position shown in FIG. 8A where it engages with the drawer portion 21A of the drawer mechanism 21. Furthermore, the drawer mechanism 2
1 moves along the drawer guide 22 in the direction of the stocker 17, the drawer part 2 of the drawer mechanism 21
1A pushes the side of the disk jacket 8, so that the disk jacket 8 is pushed into the stocker 17.
is inserted inside. The movement of the drawer mechanism 21 stops at the position shown in FIG.
The roller 30 is rotated by the pressing force of the spring member 29, the positioning groove 12 and the roller 30 are engaged, and the disk jacket 8 is in the seventh position.
It is positioned at the position shown in the figure.

As described above, according to this embodiment, a plurality of disk jackets 8 and an engaging portion 10 that engages with the drawer portion 21A provided in the device are attached to the disk jacket 8 that rotatably stores the disk 1. By providing the positioning groove 12 that engages with the positioning member 16 in the stocker 17 to be stored, when any disk jacket 8 is pulled out from the stocker 17, the engaging portion 10 can be engaged with the pull-out portion 21A. Drawer section 21A for other disk jackets
The stocker 17 can be moved without contacting the
When the engaging portion 10 engages with the drawer portion 21A, the disk jacket 8 can be automatically pulled out, and the disk 1 can be moved into 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.

Effects of the Invention The disk jacket of the present invention has a very simple structure by providing a pair of engaging portions that engage with external members on both sides of the drawer side edge of the casing that rotatably stores the disk. However, since the disk jacket can be automatically loaded into and removed from the device without removing the disk from the disk jacket, any disk can be removed from a stocker that stores multiple disk jackets containing a huge amount of information. The jacket can be automatically replaced at high speed in a stable posture with both ends of the jacket supported. In addition, since automatic replacement can be performed, there is no need to touch the disk directly, and there is no possibility of fingerprints or damage to the disk due to accidental handling. Therefore, the effect is large.

[Brief explanation of drawings]

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 the disk jacket according to an embodiment of the present invention, and FIG. 3 is a diagram of the same disk jacket. 4 is a 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)

[Claims] 1. 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 having a rotary drive body inserted therein for rotationally driving the disk. recording information on the disk,
A head insertion opening into which a head for regeneration can be inserted is provided, a pair of engaging portions for transferring the housing by an external transfer member, and a pair of engaging portions for engaging and positioning the external housing positioning member. a positioning groove, and the engaging portions are provided at symmetrical positions on both sides of the drawer side edge of the disk.