JPH07192433A - Disk cartridge - Google Patents

Abstract

PURPOSE:To reduce the number of structural parts by constituting a shutter of one plate material, making a part for linking the front surface of a shutter window ire a U-shaped sectional form and increasing the strength of a linking part. CONSTITUTION:A shutter window 21a is formed in a shell 2 and matched with a notch 2b. Usually the notch 2b is closed by a spring. When the shell 2 is loaded in the specified position of a cartridge holder 3, a shutter 21 is moved by a shutter closing mechanism 7, the shutter window 21a is positioned in a place to be matched with the notch 2b and a disk carrier 6 is exposed. The bent end of a bridging part 21b on the tip side of the shutter window 21a is engaged with a groove 2d formed on the end surface of a shell inserting side and the shutter 21 is smoothly in a U shape and thus the strength of the narrow shutter bridging part 21 is increased.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc cartridge in which a disc carrier is rotatably attached, and in particular, it is possible to enhance the strength of a shutter for opening and closing a notch of the disc cartridge, and to mount it in a disc drive. The present invention relates to a disc cartridge capable of easily discriminating whether or not information can be recorded on the disc carrier in the state of being lit.

[0002]

2. Description of the Related Art FIG. 6 shows a schematic structure of an example of a disk drive device. In FIG. 6, a cartridge holder 3 having an auto-injection mechanism for automatically pulling the disk cartridge 2 into a predetermined mounting position is mounted on a rectangular chassis 1. A cartridge insertion / removal opening 4 is provided on the front surface of the cartridge holder 3, and a cutout portion 5 is formed on the rear surface. Further, a disk carrier 6 is pivotally mounted in the disk cartridge 2, and when the disk cartridge 2 is mounted at a predetermined position in the cartridge holder 3, it is rotated by a spindle motor (not shown) which is raised by an elevating mechanism. It is supposed to be done. Further, the cartridge holder 3 is provided with a shutter opening / closing mechanism 7 for opening / closing the shutter of the mounted disc cartridge 2. The shutter opening / closing mechanism is described in detail in the proposal previously filed by the applicant of the present application in Japanese Patent Application No. 5-11791.

On the other hand, on the chassis 1, a carriage 9 is moved by a linear motor 8 in the radial direction of the disk carrier 6.
The carriage 9 is provided with a disk carrier 6
To hold the optical head 10 and the magnetic head 11
Is attached. And the rotating disk carrier 6
Recording / reproduction of information is performed with respect to.

7 to 9 show an example of the structure of a conventional disc cartridge 2. In FIG. 7, the disc cartridge 2 is generally formed with an opening 2a for exposing a part of the disc carrier 6 in the radial direction, and an opening is formed on one side of the disc cartridge 2 on the side where the opening 2a is formed. A shutter 21 having a U-shaped cross section that opens and closes the portion 2a is movably mounted by holding both sides of the disc cartridge 2. The shutter 21 is formed with an opening 21a that can be aligned with the opening 2a of the disc cartridge 2, and the shutter 21 is urged to move in the direction of closing the opening 2a by a spring (not shown).

The disk cartridge 2 shown in FIG.
The opening 2a is only formed in a rectangular shape, and the head insertion opening is not provided with a special cutout. However, in order to reduce the thickness of the driving device, it is necessary to extend the opening 2a to the outer periphery and form the cutout 2b as shown in the top view and the bottom view of FIGS. 8 and 9, respectively. In this case, the width of the shutter 21 may be formed to be slightly larger than the width of the cutout portion 2b, and the shutter 21 can be slid on one side of the bent portion of the shutter 21 into a groove portion (not shown) formed on the side surface of the disc cartridge 2. One end of the slider 22 to be engaged is screwed.

In the above structure, a bridging portion 2c connecting both sides of the open end of the cutout portion 2b is provided to increase the strength. The thickness of each of the bridge portion 2c and the slider 22 is equal to the thickness of the disk carrier 6, and when the shutter 21 is opened, the optical head 10 and the magnetic head 11 shown in FIG. It can be moved along both sides of 6. Further, as shown in FIG. 9, a light protector 23 as a display means for displaying whether or not new information may be recorded on the disk carrier 6 is provided at one corner of the lower surface of the disk cartridge 2. .

[0007]

However, according to the conventional disc cartridge constructed as described above, as shown in FIGS. 8 and 9, the shutter 21 for opening and closing the notch 2b of the disc cartridge 2 is illustrated. Since the slider 22 is fixed by a screw which is not provided, there is a drawback that the number of parts is increased. In order to eliminate this defect, as shown in FIGS. 10 and 11 as a top view and a bottom view, respectively, there is a shutter 21 and a slider 22 which are integrally formed by a metal plate. However, according to this structure, since the width t of the portion corresponding to the slider 22 is narrow, there is a problem that the strength is weakened.

Further, since the conventional disc cartridge 2 is provided with the light protector 23 on the upper surface as shown in FIG. 12, it cannot be seen when the disc cartridge 2 is mounted in the cartridge holder 3. Therefore, there is a problem that it is impossible to determine whether or not new information can be recorded unless the disc cartridge 2 is taken out of the cartridge holder 3 and the write protector 23 is seen.

The present invention has been made in view of the above circumstances. A first object of the present invention is to provide a shutter provided in a disk cartridge with a simple structure having a small number of parts and to increase the strength. To provide a disk cartridge.

A second object is to provide a disc cartridge in which a display means for displaying whether or not information can be recorded on the disc carrier can be seen in a state where the disc cartridge is mounted in the cartridge holder. .

[0011]

A disk cartridge according to a first aspect of the present invention is a disk having a disk carrier 6 rotatably pivotably mounted thereon and a notch 2b formed in the front surface for allowing the heads 10 and 11 to be inserted therethrough. The cartridge body 2 and the front surface of the disc cartridge body 2 are slidably mounted,
In a disk cartridge provided with a shutter 21 having a shutter window 21a as a window portion for opening and closing the cutout portion 2b, a cross section of a bridging portion 21b connecting the front surface of the shutter window 21a is U-shaped. .

A disk cartridge according to a second aspect of the present invention is characterized in that a groove portion 2d into which the open end of the U-shaped bridging portion 21b is slidably fitted is formed on the front surface of the disk cartridge body 2.

According to a third aspect of the present invention, there is provided a disc cartridge main body 2 on which a disc carrier 6 is rotatably mounted, and a light protector 23 as display means for displaying whether or not information can be recorded on the disc carrier 6. In the disc cartridge including the above, the write protector 23 is provided on the back surface of the disc cartridge body 2 opposite to the side where the disc cartridge is inserted into the disc drive.

[0014]

In the disk cartridge according to the first aspect of the present invention, the shutter 21 mounted on the disk cartridge body 2 is formed of a single plate member having the shutter window 21a and the bridge portion 21b, thereby reducing the number of parts. The structure can be simplified. Also, the shutter window 21a
By making the cross-section of the bridging portion 21b, which is a narrow portion that connects the front surfaces of the above, into a U-shape, the strength of the bridging portion 21b can be increased.

In the disc cartridge according to the second aspect, since the open end of the bridging portion 21b is slidably fitted in the groove portion 2d formed in the front surface of the disc cartridge body 2, the shutter 21 can be smoothly moved. It can be opened and closed.

In the disc cartridge according to the third aspect, since the write protector 23 is provided on the back surface of the disc cartridge main body 2, the disc drive for loading the disc cartridge is performed by the vertical movement of the spindle motor for rotationally driving the disc carrier 6. With the disc cartridge inserted in the device, the write protector 23 can be seen from the outside, and it is possible to know whether or not the disc carrier 6 is recordable.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a disk cartridge of the present invention will be described below with reference to the drawings. Incidentally, of the portions shown in the respective drawings for explaining the respective embodiments, the portions corresponding to the portions of the conventional example shown in FIGS. 6 to 11 are designated by the same reference numerals, and the description thereof will be appropriately omitted.

1 to 5 show the configuration of an embodiment of the invention shown in FIG. As shown in FIG. 2, a rectangular notch 2 is formed at the center of the insertion end side of the sill 2, which is the disc cartridge body.
b is formed, and a thin shell bridging portion 2c is provided on the insertion end side of the cutout portion 2b. On the insertion end side of the shell 2, a shutter 2 having a U-shaped cross section as shown in FIG.
1 is slidably mounted along the end face, and the shutter 21 is formed with a rectangular shutter window 21a.

The shutter window 21a has a shape that matches the cutout portion 2b formed in the shell 2. Normally, the shutter 21 closes the cutout portion 2b by a spring (not shown). Further, when the shell 2 is mounted on the cartridge holder 3 at a predetermined position, the shutter opening / closing mechanism 7 described above is used.
As a result, the shutter 21 moves, the shutter window 21a comes to a position aligned with the cutout 2b, and the disc carrier 6 is exposed.

The shutter bridging portion 21b on the front end side of the shutter window 21a of the shutter 21 has a U-shaped cross section, and the bent end of the bridging portion 21b has a shell insertion side end surface as shown in FIG. It is slidably engaged with the groove portion 2d formed in. The shutter 21 can be opened and closed smoothly.

According to the present embodiment, the shutter 21 is made of one plate material, and the bridging portion 21b is formed in a U-shaped cross section, so that the number of parts constituting the shutter 21 is reduced. In addition, the strength of the narrow shutter bridging portion 21b can be increased.

FIG. 5 shows the configuration of an embodiment of the second invention. In FIG. 5, the light protector 23 is the shell 2
Is provided on the back surface opposite to the insertion side.

According to the present embodiment, when the shell 2 is mounted on the disk drive device for loading by elevating the spindle motor, it is determined whether the disk carrier 6 mounted from the outside of the drive device can be written. can do.

[0024]

As described above, according to the disk cartridge of the first aspect, the shutter is composed of one plate member, and the cross-section of the bridge portion connecting the front surface of the shutter window is U-shaped. Since it is formed as described above, the number of parts constituting the shutter can be reduced and the strength of the narrow bridging portion can be increased.

According to the disk cartridge of the second aspect, since the open end of the bridge portion of the shutter is slidably engaged with the groove 2d formed in the front surface of the disk cartridge body, the shutter can be opened and closed smoothly. Can be made.

According to the disk cartridge of the third aspect, the display means for displaying whether or not the disk carrier is recordable is provided on the back surface of the disk cartridge body.
It is possible to determine from the outside whether or not the disc carrier mounted in the disc drive can record.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a shutter according to an embodiment of a first invention of a disk drive device of the present invention.

FIG. 2 is a perspective view showing a configuration of a shell of a disc cartridge to which the shutter shown in FIG. 1 is attached.

FIG. 3 is a front view showing a configuration of a disk cartridge including a shutter and a shell shown in FIGS. 1 and 2, respectively.

FIG. 4 is a plan view of FIG.

FIG. 5 is a perspective view of FIG.

FIG. 6 is a perspective view showing a configuration of a main part of an example of a disk drive device.

FIG. 7 is a perspective view showing the configuration of an example of a conventional disc cartridge.

FIG. 8 is a top perspective view showing the configuration of another example of a conventional disc cartridge.

9 is a bottom perspective view of FIG. 8. FIG.

FIG. 10 is a top perspective view showing the configuration of still another example of a conventional disc cartridge.

11 is a bottom perspective view of FIG.

[Explanation of symbols]

 2 shell (disk cartridge body) 2b notch 2d groove 6 disk carrier 10, 11 head 21 shutter 21a shutter window (window) 21b bridging section 23 light protector (display means)

Claims (3)

[Claims] 1. A disk cartridge main body having a disk carrier rotatably pivotally mounted thereon, and a front surface of which is provided with a notch through which a head can be inserted, and a disk cartridge main body slidably mounted on the front surface of the disk cartridge main body. A disc cartridge comprising a shutter having a window portion for opening and closing a cutout portion, wherein a cross-section of a bridging portion connecting a front surface of the window portion of the shutter is U-shaped. 2. The disc cartridge according to claim 1, wherein a groove portion into which the open end of the U-shaped bridging portion is slidably fitted is formed on the front surface of the disc cartridge body. 3. A disc cartridge comprising a disc cartridge body for rotatably pivoting a disc carrier and a display means for displaying whether or not information can be recorded on the disc carrier, wherein the display means is the disc cartridge body. A disk cartridge, which is provided on the back surface opposite to the insertion side of the disk drive device.