JPS63106977A - Disk cartridge - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disk cartridge of a disk-shaped recording medium for optically recording and reproducing information, and particularly relates to a disk cartridge of a disk-shaped recording medium for optically recording and reproducing information, and particularly to a disk cartridge of a disk-shaped recording medium for optically recording and reproducing information. The present invention relates to a disc cartridge having a recording medium.

[Conventional technology]

Optical disks and magneto-optical disks are known as information recording media that optically record and reproduce information. Conventionally, these disc-shaped information recording media have been manufactured using cartridges to protect their surfaces from scratches, dust, light, etc. It is used by attaching it to.

Although the disk-shaped information recording medium (hereinafter referred to as "optical disk") described above has a large recording capacity, it takes a long time to start up the rotation of the disk, access time for the optical head, etc. It required a lot of waiting time to identify the information.

In addition, since the directory information for managing recorded information is updated and added each time data is recorded, especially on write-once optical discs, the information cannot be rewritten, so each time it is used, it is left unused. It was necessary to use a separate recording area or prepare another different recording medium, such as a magnetic disk.

As a conventional method to solve this problem,
As described in Japanese Patent No. 15880, it is known that a solid-state memory for recording management information is provided outside the optical disk and is electrically connected to the outside. In this conventional example, the management information can be read out at the same time as the optical disk is loaded into the apparatus main body, and the management information can be prevented from being erased or destroyed by the recording beam.

[Problem that the invention seeks to solve]

However, the above-mentioned conventional technology does not take into consideration the protection of management information and identification information recorded in solid-state memory.
Destruction of solid-state memory due to static electricity, oxidation of electrical contacts, etc.
No consideration was given to poor connections due to dust and destruction of memory due to power-on during installation, resulting in the problem of damage to management information or identification information.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and provide a disc cartridge that can reliably protect management information and identification information recorded on a second recording medium provided in the disc cartridge.

[Means for solving problems]

The above object is achieved by providing a shutter member that covers the connection part where the second information recording medium inputs and outputs information, and when the second information recording medium is installed, the shutter member moves and connects the second information recording medium to the main body. be done.

[Effect]

When the shutter is not attached, the shutter is located at a position that covers the connection part where the second information recording medium is connected to the outside, and protects the connection part from scratches, dust, oxidation, etc.

On the other hand, the shutter moves when the cartridge is attached to the disk, and the connecting portion is exposed and connected to the main body, allowing information to be input and output.

〔Example〕

The present invention will be explained in detail below using examples. 1st
The figure is a perspective view of a disk cartridge according to the first embodiment of the present invention, FIG. 2 is a perspective view when the shutter is opened, and FIG. 3 is a plan view of FIG. 2. It uses IC memory.

In the figure, 20 is an optical disk for recording information, and a hole 21 for rotational driving is bored in the center of the optical disk. 10
is a disc cartridge body that accommodates the optical disc 20. A hole 11 for a rotary drive mechanism for recording and reproducing information on the optical disk 20 is bored on both sides of the main body 10, and a hole 11 for allowing an optical head to access the optical disk 20 is provided on the back side. A hole 12 is drilled.

Reference numeral 30 denotes an IC memory which is a second information recording medium, and is mounted inside the disc cartridge body 10, and management information and identification information of the information recorded on the optical disc 20 are recorded therein. 31 is a group of connection terminals through which the IC memory 50 inputs and outputs information to and from the outside; 32 is a grounding electrode; 33 is a data electrode; and 34 is a power supply electrode.

A shutter 13 that is movable in parallel is installed in the disk cartridge body 10. When the shutter 13 is not attached, the shutter 13 has a spring 40 as shown in FIG.
IC memory 30 is pulled in the direction of C by
The connecting terminal group 31 is covered.

When the optical disc is loaded into a recording/reproducing device, it is inserted in the direction A. Then, the trigger tool 41a engages with a protrusion in the recording/reproducing device, and the disc cartridge main body 1
0 is inserted deeper, the trigger tool 41a slides inward in the guide groove 4Ib. Therefore, the shutter 13 receives a force in the direction B due to the pull string 42 stretched between the shutter 13 and the trigger tool 41a, and moves in the same direction as shown in FIG. As a result, the connection terminal group 31 appears and is electrically connected to the main body of the device.

Therefore, since the shutter 13 covers the connection terminal group 31 when not attached, the connection terminal group 31 can be protected from external scratches, dust, oxidation, etc., and the reliability of information is increased.

Furthermore, the shutter 13 has conductivity and is always in contact with the ground electrode 32. Therefore, it is possible to maintain the terminal group 31 at a conductive potential when not attached, and it is possible to prevent the IC memory 30 from being destroyed by static electricity or the like.

Furthermore, the ground electrode 32 has a longer length in the insertion direction than the other electrodes, and is first connected to the outside when installed. In addition, the power supply electrode 34 is shorter than the other electrodes and is connected last during installation, thereby preventing damage to the IC when the power is turned on.

Further, the shutter 13 for opening and closing the connection terminal group 31 is provided through an access hole 12 made in the disk cartridge body 10.
, and a shutter for opening and closing the hole 11 for the drive mechanism, so that the mechanism of the shutter and the shutter can be configured extremely easily.

FIG. 4 is a perspective view of the main part of the second embodiment of the present invention, FIG. 5 is a perspective view of the main part when the shutter 14 is opened, and FIG. 6 is a plan view of FIG.

In this embodiment, a shutter 13 opens and closes a drive hole 11 and an access hole 12 provided in a disk cartridge body 10, and a shutter 14 opens and closes a connection terminal group 31 of an IC memory 30, which is a second information recording medium. is set up separately.

When not attached, the shutter 13 is pulled in the direction C, and the shutter 14 is pushed in the direction E by the spring 43. Therefore, the shutter 13 covers the holes 11 and 12, while the shutter 14 covers the connection terminal group 31, and the optical disc 20 and the connection terminal group 31, respectively.
is protected.

When installing the cartridge into the recording/playback device, press shutter 1.
3b moves in the direction B similarly to the first embodiment. on the other hand,
The shutter 13a has a trigger 44a that engages with a protrusion provided in the recording/reproducing device, and the shutter 13a
As the 0 is inserted deeper, it slides inward in the guide groove 44b, so it moves in the D direction. As a result, the shutter 14 opens and the connection terminal group 31 is connected to the main body of the apparatus, allowing input and output of external information. FIG. 7 is a perspective view of essential parts of a third embodiment of the present invention, FIG. 8 is a plan view, and FIG. 9 is an explanatory diagram of the operation. In this embodiment, a strip-shaped magnetic recording medium 16 (hereinafter abbreviated as magnetic tape) is used as the second recording medium, and input/output of information to/from the outside is performed relative to a magnetic head provided on the main body. It is done by moving.

When not attached, the shaver 15 is pulled in the j5E direction by the compressive force of the spring 46, and is in a state of protecting the surface of the magnetic tape 16, as shown in FIG. 9(a)K.

On the other hand, when the disc car 1-IJj main body 10 is installed in the recording/reproducing apparatus, the first. Similar to the second embodiment,
The trigger tool 45a engages with a protrusion in the recording/reproducing device and slides in the guide groove 45b. For this reason, the shutter 15
is pulled in the direction of force υD by the pulling string 47, and is housed in the cartridge as shown in FIG. 9(b). As a result, the magnetic tape 16 appears and the recorded information can be extracted. In addition, 48 in the figure is a guide bin, and 49 is a fixed bin.

In this third embodiment, information may be recorded and reproduced by moving the magnetic head after it is attached to the main body, or the position of the magnetic head may be fixed and information may be recorded and reproduced during relative movement when attaching and detaching the cartridge. It may also be recorded and played back.

Although the present invention has been described above using the first to third embodiments, the present invention is not limited thereto and can be modified in various ways. In short, if the second information recording medium is protected by a shutter when the disk cartridge main body is not installed,
Included in the present invention.

〔Effect of the invention〕

As explained above, according to the present invention, the diffuser
Since the second information recording medium provided in the IJ-judge body can be sealed and protected by a movable shutter, the recorded management information and identification information will not be damaged, and the reliability of the recorded information can be increased. .

Further, by enabling the shutter to open and close at least one hole formed for inputting and outputting information on the optical disc stored in the cartridge at the same time as the second recording medium, The mechanism is greatly simplified.

Further, when the second information recording medium is a solid-state memory, by making the shutter member conductive, the connection terminal can be kept at a conductive potential when not attached.

Therefore, the solid-state memory will not be destroyed by static electricity or the like.

[Brief explanation of the drawing]

1 and 2 are perspective views of a disk cartridge main body according to a first embodiment of the present invention, FIG. 3 is a plan view of FIG. 2,
4 and 5 are perspective views of a disk cartridge main body according to a second embodiment of the present invention, and FIG. 6 is a plan view of FIG. 5.
FIG. 7 is a perspective view of the third embodiment of the present invention, FIG. 8 is a plan view, and FIG. 9 is an explanatory diagram of the operation. 10...Disk cartridge body 11...Driving mechanism hole 12...Access hole 13.14.15...Shutter 16...Magnetic recording medium 20...Optical disk 21...Drive Hole 60 for...Memory 31...Connection terminal group 32...Ground electrode terminal 33...Signal terminal 34...Electrode terminal for power supply. :) Agent Patent attorney Katsuo Ogawa □ Figure 1 Figure 2 F5 R1111÷C

Claims (1)

[Claims] 1. A disk-shaped recording medium that records and reproduces information by irradiating a light beam, and a second disk-shaped recording medium different from the disk-shaped recording medium.
A disk cartridge for storing an information recording medium, which is provided with a shutter member that covers an information input/output connection part of the second information recording medium when not installed, and when installed, the shutter member moves and connects the second information recording medium. A disk cartridge characterized in that an information recording medium is connected to the main body. 2. The disk cartridge according to claim 1, wherein the shutter member simultaneously opens and closes at least one hole through which information is input and output from the disk-shaped recording medium. 3. The second information recording medium is a solid-state memory, and the shutter member is conductive so that terminals for inputting and outputting information with the outside are kept at equal potential by the shutter member when not attached. A disk cartridge according to claim 1 or 2, characterized in that: 4. The second information recording medium is a solid-state memory, and when installed, among the terminals for inputting and outputting information to and from the outside, the ground electrode is connected to the outside before the other electrodes. A disk cartridge according to any one of claims 1 to 3.