JPS58130476A - Disk cassette - Google Patents

Abstract

PURPOSE:To prevent damage to a disk, by automatically turning a shutter provided between the disk and a case in interlocking with insertion and removal of the case, by making a hub of the center part of the disk an axis, and opening and closing a window. CONSTITUTION:A half body 13' for forming a case has the almost same structure as a half body which is not shown in the figure, and they are junctioned by the uneven part and formed in one body. To a projecting strip provided on an opening part 16', a ring part 3 of a shutter 7' consisting of the ring part 3 and a plate-like part 5 is fitted to turn it. As for a shutter opening and closing jig 8, a part of notch part 18' is fitted to the end of the plate-like part of the shutter 7', and the other end has a projection 9 and is detained by a spring 10. A rail 15 is a groove having a recessed section, consists of a circular arc-like part 19 and a linear part 20, and the opening and closing jig 8 slide-moves in it. The projection 9 is engaged with a projecting piece in a device body, the shutter 7' turns in interlock with the projection 9 when inserting or removing the case into or from the device, and a window 11 is opened and closed. The other half body has the almost same structure, as well. In this way, the shutter is opened and closed automatically, and damage of the disk is prevented.

Description

[Detailed description of the invention] [Field of invention for vu] The present invention has a flexible magnetic disk inside.

This is related to the disk cassette that is held in llito.
There's something about Shutter Pickled Barrels.

[Prior art]

Conventional flexible magnetic disks are constructed in a case with openings such as head windows, etc., so dust enters the case through the openings and adheres to each station on the magnetic disk. Except when I put my finger on the magnetic disk.

It's easy to increase the number of crests. Dust and fingerprints are magnetic disks.

The more layers you add, the more likely dropouts will occur in the signal received from the magnetic disk.

Therefore, extreme care must be taken when handling the case.

It is.

Prevents dust from entering the case and fingerprints from forming a layer.

In order to prevent
, The disk cassette shown in <rt> is a capture business.

It is. Figure 1 (α) shows the main body 1 of the storage device, etc. .

FIG. 1(b) shows the disk cassette 6 and the nest.

Figure 1 (C) shows the state in which the disk cassette 3 is attached to the main body 1, and Figure 1 (d) shows the disk cassette 3 with 15 removed from the main body 1. Di.

Quick cassette set 3 has shutter 4, shutter.

A jig for opening and closing the shutter is firmly attached to the corner of 4.

5. Spring 6 with one end connected to shutter opening/closing jig 5
, and a disk 12. De,.

When the book cassette 3 is attached to the main body 1, the book “body 191”
The shutter opening/closing jig 5 comes into contact with the shutter opening pawl 2 provided in the shutter opening/closing claw 2 provided in the disk 11.

As the cassette 5 is pushed in, the shutter 4 moves.
The head window 11 is completely opened 5. That is, the first
The state shown in Figure (c) is reached. It's been a long time.

A place to remove the instrument cassette 3 from the main body 1.

If so, depending on the movement of the disk cassette 3.

The spring 6 contracts and the shutter 4 gradually closes, but
Since 10 springs 6 are connected only to one side of the shutter 4, the shutter 4 may tilt and friction/friction resistance increases, causing it to stop midway through closing. Shihashi arises. In the state shown in Figure 1 Cd), the disk cassette 3 is removed from the base 1.
), and then you have to close shutter 4 manually.

shutter 4 automatically opens and closes.

A defect in which the original purpose is not fully achieved.

There was.

[Purpose of the invention]

・The purpose of the invention is to eliminate the above-mentioned drawbacks of the prior art, and to ensure that magnetic disks are stored safely.

For the first time, one iron layer is used on the main body.

Automatically as soon as it is opened and removed from the main unit.

To provide a disk cassette having a five-shutter opening/closing mechanism for a head window that closes smoothly.

[Summary of the invention]

In order to achieve the above object, the present invention has been made.

In the shutter opening/closing mechanism, the conventional shutter that moves in parallel is replaced with a shutter that rotates coaxially with the center of the central opening of the case, and a jig for opening and closing the shutter is provided on the outer part of the shutter, thereby reducing frictional resistance. In addition, a spring is connected to the end of the shutter opening/closing oil to utilize the repulsive force of the spring.

to ensure that the shutter is always closed. .

[Funny example of invention]

Below, the present invention will be described as a flexi according to Km examples thereof.

Full magnetic disk self-storage device disc cassera 2゜・
4. With drawings and examples of applications.

Explain in detail. In addition, the non-invention is the flexible magnetic device.

For example, video discs are not limited to disk storage, which is strictly limited to cassettes.

Of course, it can be applied to digital audio discs and the like.

FIG. 2 shows a shutter opening/closing mechanism according to the present invention.

2 (αF is a main body 1 such as a storage device, etc., and FIG. 2 (A) is a disk.

FIG. 2(C) shows a case where a disk 10 cassette 6 is attached to the main body 1 with an iron layer.

Ru. The main body 1° into which the disk cassette 3 is inserted has a shirt for opening the shutter 7.

The tar opening claw 2 is slightly protruded from the main body 1.

I'm being kicked. Figure 15 also shows a configuration diagram of the disk cassette 3°0 of the present invention.

It has a dough 11, a central opening 16, 16', and a bed 14 inside the system.

One side of the case 13 and the case 13 can be rotated.

The third.・.

Figure Cb) shows a disk 12 with a hub 17 in the center.

show. Figure 3 (C) shows one side of the case 13' and a shutter rotatably attached to the case 13.

7' and one end thereof is connected to the outer edge of the shutter 7'.

rail 151C (i) at the other end of the sliding shutter opening/closing jig 8 and the sliding shutter opening/closing jig 8.

The connected spring 10 is shown. For opening and closing the shutter.

The jig 8 is made of a flexible material, and one end is rounded.

A recess 18. which mates with the outer edge of the sleeve 7.7'. .

18', and a protrusion 9 at the other end. Although the protrusion 9 protrudes into the kite #114, it does not protrude to the outside of the disk cassette 3. rail 1
Reference numeral 5 denotes a groove having a concave cross section molded inside the case 15, 15', and consists of an arcuate part 19 and a straight part 20, on which the shutter opening/closing tool 8 slides. Torsion spring 10 is case 13. .

13', and is housed in a cavity 21 formed within the interior.

This is related to the end of the shutter opening/closing jig 8, and so on.

Leprosy is kept in a case 13'. Shutter 7.

7' is formed from a thin plate of non-magnetic material, and the case 13, 2゜1
3' center opening 16.Protrusion 22 formed around 16'
1 and around the protrusion 22.

Roll and rotate.

The mechanism and operation of the Imaki embodiment will be explained with reference to the drawings. When the disc cassette 5 is gradually inserted into the disc cassette 1, it will slide along the kite groove 14.

The shutter opening claw 2 slides relatively.

However, the shutter opening claw 2 comes into contact with the protrusion 9.

do. Furthermore, push the disk cassette 3 into the main body 1.

When pushed in, the protrusion 9 is pushed down, and the jig 8 for opening and closing the shirt 10 is installed in the case 15.

- the outer edge of the shutter 7.7' by sliding the lever 15;

As a result, shutter 7.7' rotates.

The head window 11 opens gradually, and when the disk cassette 3 is completely inserted into the main body 1, the head window 11 opens and the torsion connected to the other end of the shutter opening/closing oil A8 opens. 10 has the highest deflection. 2nd
Figure (C) shows that the disk cassette 3 is attached to the main body 1 with an iron layer.
d shows a state in which the headlight window 11 is completely opened.

・　7　・ Also, remove the disk cassette 3 from the main body 1.

If you want to remove it, use the movement of disk cassette 3.

Accordingly, the shutter is activated by the action of the torsion spring 10.

The opening/closing jig 8 is pushed up and the shutter opens.

The tip of the opening jig 8 presses the outer edge 5 of the shutter 7.7', and the shutter 7.7' rotates gradually.

The head window 11 is then closed. .

When the disk cassette 3 is completely removed from the main body 1, it is in its original state as shown in Figure 2 (b).

The shutter 7.7' is returned, and the head window 10 is 1
1 is completely covered by the shutter 7.7'.

When the disk cassette 3 is alone as shown in FIG. As mentioned above.

As mentioned above, there are no discs on the outside of the cassette.

(It doesn't protrude, so even if you hold a 3° disc cassette in your hand, it won't touch your fingers.)

Shirt 77, even if a toddler plays a prank on it, it is easy to wear.
8. Turf, 7' does not open. In case it opens accidentally.

Even if it were, the shutter 7.7' would be twisted.

10) Shutter because it automatically returns with force.

7.7' will never need to be worked on. .

〔Effect of the invention〕

As detailed above, one aspect of the present invention is D.

Leave the shutter of the cassette closed.

By putting an iron layer on the main body, it will automatically turn off.

When the shutter is opened and ready for use, the shutter is automatically closed by the spring #110 at the same time as it is removed from the main body. .

However, as a standalone Quedisc cassette.

The shutter is always closed and closed.

The jig for opening and closing Yatter is from the disc cassette.

Since it does not protrude, the shutter will not open unless you intentionally try to open it, which greatly prevents the intrusion of dust, etc., and the accidental contact of your finger with the disc.
It is completely safe to use.

[Brief explanation of drawings]

The first factor (α) I (A), (C), and (d) are conventional di. A cross section showing the shutter opening/closing mechanism of a quick cassette. Figures 2 (α) * Cb) and (C) are D according to the present invention. A cutaway showing the shutter opening/closing mechanism of the isuf cassette. 3(α), (S) and (C) are assembled perspective views of the first embodiment of the 5-disc cassette according to the present invention. 1: Magnetic recording device, etc. 2: Shutter Opening claw 5: Disc cassette 104.7
．． 7': Shutter 5.8: Shutter opening/closing jig <S, 10: Neshiri spring 9: Protrusion 12: Disk +5 Representative Patent Attorney Tube Mll Akio 7.1°, 11. Fig. 1 No. 2 (α) 3 1(J

Claims (1)

[Claims] A flexible magnetic disk having a hub in the center, a head window on the front of both sides, and the hub 5 on both sides! ll!
At least one of the center hole and the center hole that is held so as to be able to rotate. It has a guide on the side and keeps the disc inside. and a central hole located inside the case between the front disk and the case. It was fitted into a rotatable Nt around the center hole and placed so as to cover the front window. A shutter, a shutter opening/closing jig with one end hooked on the outer edge of the shutter and a protrusion on the other end that slides inside the case, and one end attached to the other end of the shutter/opening/closing jig. The shutter opening/closing jig has its other end supported within the case 15. Something like a torsion spring that constantly pushes it up. A disfucacera characterized by being composed of. Then, load the disk cassette into a magnetic storage device. a shutter provided on the magnetic storage device fjIt circle when viewed;
. - The opening claw runs along the guide groove of the case and comes into contact with the protrusion of the shutter opening/closing jig and the screw. Press down on the shutter opening/closing jig against the spring. Then rotate the shutter to remove the shutter. Surrounding the inner part of the magnetic storage device, the magnetic contacts in the front magnetic storage unit are brought into contact with the disk. When the disk cassette is pulled out from the position, it is biased by the torsion spring to open and close the shutter. 10. A disk cassette according to claim 10, characterized in that a jig pushes up and rotates the shutter to close the head window.