JPH10149653A - Disk cartridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and safely take out or insert a disk-like medium even though a cover is repeatedly opened or closed, as to a disk cartridge utilizing a cover opening system. SOLUTION: A take-out port capable of taking out the disk-like medium is formed on the side surface of an upper case of the opposite side provided with a shutter, and the cover 3 for opening/closing the take-out port is furnished in such a manner that guide grooves 31 for guiding supporting shafts 30 arranged at both sides of the cover 3 are provided on one case out of upper and lower cases 1, e.g. on the upper case 1, and the supporting shafts 30 of the cover 3 are fitted to the guide grooves 31 so as freely to slide and turn to open the cover 3 by pulling it away from another case.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a disk-shaped medium,
In particular, the present invention relates to a disk cartridge in which an optical disk, a magneto-optical disk, and the like are rotatably housed in a case.

[0002]

2. Description of the Related Art In general, an information medium, for example, a disk medium such as a magnetic disk, an optical disk or a magneto-optical disk is used as a disk cartridge housed in upper and lower cases. It is known to have a shutter for opening and closing the opening of the cartridge, and a cartridge called a CD caddy used for a CD-ROM or the like is not provided with a take-out mechanism for exchanging a disk-shaped medium therein. Then, the CD can be taken out. This CD
The caddy is used in a CD-ROM reproducing apparatus that uses a CD caddy. As described above, according to the recording / reproducing apparatus, in a disk-shaped medium in which both a disk-shaped medium is used alone and a disk-shaped medium is used in a disk cartridge, it is necessary to take out and use the disk-shaped medium as necessary. is there.

[0003]

However, in a conventional disk cartridge having a disk-shaped medium take-out mechanism, a shutter mechanism cannot be provided on the side provided with a rotatable cover for taking out the medium. In addition, since the shape of the case of the disk cartridge changes greatly in the upper and lower directions, it cannot be applied to a disk cartridge that can be used in both the upper and lower directions. Also, a mechanism has been proposed in which only the side opposite to the shutter is opened to take out the disk-shaped medium, but in this mechanism, the cover is detachable or rotatable. Since the cover is separated, there is a problem such as loss and the case is inconvenient in handling.In the case of the rotary type, the cover is engaged only with the rotating shaft, so it is broken by impact etc. There was a problem that it could not be completely closed and the reliability was poor. The present invention seeks to solve the conventional problems,
An object of the present invention is to provide a disk cartridge which can be used on both sides and can easily take out and insert a disk-shaped medium by making the shape of both sides of a disk cartridge having a cover substantially the same.

[0004]

According to the present invention, there is provided a case including a disk-shaped medium rotatably accommodated therein and an upper and lower case having openings such as a drive shaft insertion hole and a head insertion hole.
An outlet that includes a shutter that opens and closes the opening, a slider that slides and guides the shutter, and an elastic member that urges the shutter in a closing direction, and that can take out a disk-shaped medium from the side of the upper case opposite to the side provided with the shutter. And a guide groove for guiding a spindle provided on both sides of the cover in one of the upper and lower cases, and a support groove for the cover is provided in the guide groove. The shaft is slidably and rotatably fitted, and the cover is separated from the other case and opened.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment of the present invention, the cover is opened and rotatably supported on the upper case near the end opposite to the side on which the shutter is disposed so as to be movable and rotatable. First, the shutter is moved in parallel to the side opposite to the shutter. Then, it is rotated to form an opening for taking out the disk-shaped medium. The lower case on the side opposite to the cover has a flat surface without projections to prevent catching when the disk-shaped medium is taken out. The locking in the closed state of the cover prevents the cover from being opened carelessly by the protrusions of the cover provided on both sides and the concave portion provided in the lower case.
This cover is slidably provided in the erroneous erasure prevention member accommodating portion formed of a guide wall having a hook-shaped protrusion, and is used without the erroneous erasure prevention member falling off the cover even when the cover is turned upside down. In other words, it is possible to select between erroneous erasure prevention and recording enable for the disk cartridge repeatedly, and even if the cover is opened and closed, the erroneous erasure prevention member does not fall off, and the disk-shaped medium can be easily taken out and inserted. The shutter for opening and closing the openings such as the drive shaft insertion hole and the head insertion hole has a substantially U-shaped cross section, and slides across the front end side of the upper and lower cases, but the slider fixed to the shutter is a case. The sliding guide is provided from the closed state to the opened state by the guide groove on the inner surface. The shutter is slidably guided by a first slider that engages with a guide portion provided in the case and slides and guides. A spring that biases the shutter in a closing direction is provided inside the case and substantially in the width direction of the shutter. Engaged with a pair of second sliders movably arranged at both ends,
Since the first slider is sandwiched, the shutter moves smoothly against the spring elastic restoring force, and is durable and can be used safely.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to an example of a disk cartridge accommodating an optical disk shown in FIGS. The disk-shaped medium 10 of a suitable information medium is rotatably accommodated, and the head insertion holes 11 and 21 and the drive shaft insertion holes 12 and 22 are formed in the case.
A cartridge provided with a shutter 4 for opening and closing the opening slidably in a shutter sliding area 5 one step lower than the outer surface of the case, wherein the shutter 4 includes an upper plate 41 and a lower plate 42.
And a connecting plate 43 connecting the upper and lower plates 41 and 42 to have a substantially U-shaped cross section. The shutter 4 has a first slider 6 and a second slider 7 for sliding guide, and a closing of the shutter 4. And a spring 8 of an elastic member that urges in the direction.
A first slider 6 which engage sliding the guide section 9 provided on the case 1 to the shutter 4, engage and slide in the guide portion 9 ₁ provided on the case 1, and first A pair of second sliders 7, 7 which are held at both ends of the slider by a spring 8 are provided. The second slider 7 comes into contact with and separates from a stopper protruding wall provided in the case along both ends of the opening at the center of the case. The shutter 4 is freely pressed and fixed, and the shutter 4 is opened and closed in both directions.

An outlet 13 for taking out the disk-shaped medium 10 is formed on the opposite side of the case provided with the shutter 4, and a cover 3 for opening and closing the outlet 13 is provided. A guide, such as a support shaft 30 provided on both sides of the cover 3, is provided in a case, for example, the upper case 1, and a guide guide groove 31 is provided. The support shaft 30 of the cover 3 is slidably and rotatably fitted in the guide groove 31. The cover 3 is detached from the other case 2 and opened. That is, the support shaft 30 provided in the cover 3 is a cylindrical rotary shaft, has a flat surface with a part cut out, and is slidably provided in a guide groove 31 fitted into the flat surface. thereby opening and closing mechanism can be rotated in a circular hole 31 ₁ formed at one end of the guide groove 31, a housing portion 15 for charging the erasure prevention member 14 mis the cover 3 is provided, erasure preventing erroneous in this housing part 15 The member 14 is slidably locked so that recording on the disk is enabled or disabled.

[0008] The erroneous erasure prevention member accommodating section 15 includes:
The guide wall 16 is defined by opposing guide walls 16, 16.
An operation opening 17 is provided on the bottom surface between the
6, a hook-like projection 18 for preventing falling off which partially covers the upper surface of the erroneous erasure prevention member is provided so as to face the erroneous erasure prevention member 14.
Are slidably provided without falling off. Further, the mis-erase prevention member 14 is operated and a identification section 14 ₂ projecting from the operating piece 14 ₁ and the upper surface projecting from the bottom thereof, are then easily identified.

The cover 3 is supported on the upper case 1 near the end opposite to the side where the shutter 4 is disposed so as to be movable and rotatable, and enables recording on the disk medium 10 and disables recording. The erroneous erasure prevention member 14 for setting the position is provided movably on the cover 3. In addition, a hook-shaped projection 18 is provided on the upper portion of the guide wall 16 for guiding the movement of the erroneous erasure prevention member 14, and even if the erroneous erasure prevention member 14 is turned upside down.
Does not fall off the cover 3. The upper surface of the hook-shaped projection 18 is an inclined surface, and the guide wall 16 is not connected to the outer peripheral wall of the cover 3 or the arc-shaped wall 19 for guiding the outer periphery of the disk. The guide wall 16 is easily elastically deformed outward.

The support shaft 30 of the cover 3 is supported on both sides of the upper case 1, and the support portion is a guide groove 31 so that the cover 3 can be translated and rotated. To open the cover 3, first, the cover 3 is moved in parallel to the side opposite to the shutter. Next, rotate the opening 1 for taking out the disk-shaped medium.
Make 3. The lower case 2 on the side opposite to the cover 3 has a flat surface without projections to prevent the disk-shaped medium 10 from being caught when the disk medium 10 is taken out. The locking of the cover 3 in the closed state prevents the cover 3 from being opened carelessly by the projections 32 of the cover provided on both sides and the recess provided in the lower case 2. This locking may be a method of releasing the locking lightly depending on the application, or a method of strongly pressing both sides of the cover 3 to release while elastically deforming.

The upper and lower cases 1 and 2 have substantially the same shape on both sides, and the cover 3 is
Step fitting surfaces 25 and 26 are provided at the relative edges that come into contact with the main body to prevent dust and dirt from entering during storage.

The shutter 4 is fixed to the first slider 6. For example, the shutter 4 is slid from a closed state to an open state by a convex guide portion 9 of the first slider 6 and a guide groove on the inner surface of the case. Guide the movement. The shutter 4 may be formed by injection molding using a polyacetal resin or the like to have a substantially U-shaped cross section. Further, the support shaft 30
The guide groove 31 and the guide groove 31 are in a relative relationship, so that they can be provided at the opposite portions to the embodiment.

[0013] In the figure, 14 ₃ the elastic arm, 23 is a label area, 24 is a shutter retainer, 25 and 26 stepped mating face edge.

[0014]

According to the present invention, there is provided a case comprising an upper and lower case having a disk-shaped medium rotatably housed therein and having openings such as a drive shaft insertion hole and a head insertion hole; a shutter for opening and closing the opening; A shutter for slidingly guiding the shutter, and an elastic member for urging the shutter in a closing direction, an opening through which a disk-shaped medium can be taken out is formed on the side of the upper case opposite to the side provided with the shutter, and the opening and closing of the opening is provided. In a disk cartridge provided with a cover that covers the upper and lower cases, a guide groove for guiding a spindle provided on both sides of the cover is provided in one of the upper and lower cases, and the spindle of the cover is slidably and rotatable in the guide groove. The cover is movably fitted and the cover is separated from the other case and opened, so that it can be used as a disc cartridge with a cover for taking out a disc-shaped medium. It is, can have high disk cartridge reliable in extraction and the insertion is easy safe to cover the opening and closing operation of the disk-like medium.

[Brief description of the drawings]

FIG. 1 is a perspective view of a separated state showing an embodiment of the present invention.

FIG. 2 is a perspective view of the example of FIG. 1 in a separated state viewed from below the upper and lower cases.

FIG. 3 shows the inside of an upper case used in the present invention;
(A) is a perspective view of a partly separated state, (b) is an enlarged vertical sectional view along line AA, and (c) is an enlarged vertical sectional view along line BB.

FIG. 4 is an enlarged view of a part of the upper case of the example of FIG. 3,
(A) is a bottom view, (b) is a longitudinal sectional view taken along line CC, and (c) is a front view.

5A and 5B show an assembly operation state of the erroneous erasure prevention member used in the present invention, wherein FIG. 5A is a longitudinal sectional view at the time of loading, and FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Upper case 2 Lower case 3 Cover 4 Shutter 5 Shutter sliding area 6 1st slider 7 2nd slider 8 Spring 9,9 ₁ Guide part 10 Disk-shaped medium 11,21 Head insertion hole 12,22 Drive shaft insertion hole 14 Incorrect Erasure prevention member 15 Erroneous erasure prevention member accommodating part 16 Guide wall 17 Operation opening 18 Hook-shaped projection 19 Arc-shaped wall 30 Support shaft 31 Guide groove 31 ₁ Circular hole 32 Projection

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Katsumi Suzuki, Inventor 70, Yanagicho, Kochi-ku, Kawasaki, Kanagawa Prefecture Inside the Toshiba Yanagimachi Plant Co., Ltd. in the factory

Claims (5)

[Claims] 1. A disk drive comprising: a rotatable housing of a disk-shaped medium therein; an upper and lower case having openings such as a drive shaft insertion hole and a head insertion hole; and a shutter for opening and closing the opening. An outlet for taking out a disk-shaped medium is formed on the opposite side of the upper case provided on the opposite side, and in a disk cartridge having a cover for opening and closing the outlet, one of the upper and lower cases is provided on both sides of the cover. A guide groove for guiding the support shaft is provided, and the support shaft of the cover is slidably and rotatably fitted in the guide groove so that the cover is separated from the other case and opened. Disk cartridge. 2. The disk cartridge according to claim 1, wherein said shutter includes a slider for slidingly guiding the shutter and an elastic member for urging the shutter in a closing direction. 3. A support shaft provided on the cover is a cylindrical rotary shaft, has a flat surface with a part cut away, and is slidably provided in a guide groove fitted into the flat surface. 3. The disc cartridge according to claim 1, wherein the disc cartridge is an opening / closing mechanism that can be rotated by a circular hole formed at one end of the guide groove. 4. The upper and lower cases have substantially the same shape on both sides, and the lower case facing the upper case provided with the cover has a flat inner surface facing the cover. Or the disk cartridge according to 3. 5. The cover according to claim 1, wherein the cover has a step fitting surface at a relative edge contacting the case.
The disc cartridge as described.