JPH06215527A - Disk cartridge - Google Patents

Abstract

PURPOSE:To miniaturize a disk cartridge and to improve the reliability by providing a shutter housing recessed part on the inside of the cartridge case and arranging a shutter between the cartridge case and a printed board. CONSTITUTION:A recessed part 23 including a terminal inserting port 10 is formed at the case half body 1b of the cartridge case and a shutter 4 is housed in the recessed part 23 in slidable. Then, the shutter 4 is arranged between the case half body 1b and the printed board 12 and slid in an arrow direction. Consequently, when the terminal inserting port 10 is closed by the shutter 4, the port 10 is closed through double walls of the shutter 4 and the board 12. In such a manner, since the shutter housing recessed part is provided, the efficiency of space is improved and the miniaturization is attained. Also, the shutter functions as a reinforcing member and the function of the shutter is surely secured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk cartridge such as an optical disk cartridge, an optical-magnetic disk cartridge or a magnetic disk cartridge, and particularly to an external storage device such as an IC memory in addition to an information recording disk. It relates to a disc cartridge with.

[0002]

2. Description of the Related Art Heretofore, a disk cartridge containing a printed circuit board on which electronic components such as a memory and a microprocessor are mounted has been proposed, for example, in Japanese Utility Model Publication No. 4-16309.

In this disc cartridge, a printed circuit board on which the above-mentioned electronic parts are mounted is incorporated in a cartridge case, and a connector is attached to an end portion of the printed circuit board. The contact of the connector is exposed from the side surface of the cartridge case in order to connect with the recording / reproducing device. One large shutter with a U-shaped cross section is slidably mounted from the outside of the cartridge case, and this shutter covers the head access opening and the contact when the disk cartridge is not used. Is configured to expose.

[0004]

By the way, in the case of the proposed disk cartridge, the outer dimensions (thickness and width) of the disk cartridge are large because the shutter is attached to the outside of the cartridge case. Becomes an obstacle to miniaturization.

Further, the U-shaped shutter attached to the outside of the cartridge case is apt to open, and when it is opened, a gap is formed between the shutter and the cartridge case, which causes foreign matter or dust to come into contact with the contacts. May adhere and cause poor contact.

An object of the present invention is to solve the above-mentioned drawbacks of the prior art, to provide a disk cartridge which can be miniaturized and has high reliability.

[0007]

In order to achieve the above object, the present invention is directed to a cartridge case in which a case accommodating recess having a terminal insertion opening is formed on the inner wall of the case, and the cartridge case is rotatable within the case. An information recording disk housed in the cartridge, a printed circuit board for an IC memory, which is fixed in a position facing the terminal insertion opening in the cartridge case, and a contact terminal portion is exposed toward the terminal insertion opening; The cartridge storage case is provided with a shutter slidably disposed between the cartridge storage case and the printed circuit board for the IC memory in the recess for storing the cartridge of the cartridge case, and the IC memory is closed by the shutter with the shutter closed. The contact terminals of the printed circuit board for IC are covered, and in particular, the shutter board and the contact terminal of the printed circuit board for IC memory slide in a non-contact manner. Is preferable.

[0008]

As described above, according to the present invention, the cartridge storage recess is provided inside the cartridge case, and the shutter is stored in the recess, so that the shutter does not project to the outside of the cartridge case as in the conventional case, and space efficiency is improved. The result is good, and as a result, the size does not increase, and the disk cartridge can be downsized.

Further, by providing a cartridge housing recess in the cartridge case, the mechanical strength is weakened because the case portion in which the recess is formed is thin, but since there is a shutter in the housing recess, it is Functions as a reinforcing member. Therefore, there is no concern that the cartridge case may be deformed by an external force.

Further, since the shutter is arranged between the cartridge case and the printed circuit board and the upper and lower surfaces of the shutter are regulated by the cartridge case and the printed circuit board, the shutter tends to open like the conventional case. Without such a situation, the function of the shutter, that is, dustproof and protection from electrostatic damage can be surely exhibited.

[0011]

Embodiments of the present invention will now be described with reference to the drawings.
FIG. 1 is a schematic plan view of a disk cartridge according to the embodiment, and FIG. 2 is an exploded perspective view of the disk cartridge.

As shown in these figures, the disk cartridge is a cartridge case 1 and an information recording disk 2 such as an optical disk rotatably housed in the case.
And a storage unit 5 in which electronic parts such as IC chips are mounted, and a tray 9 (see FIG. 2).

An opening 6 connecting a head access opening and a spindle insertion opening is formed in a substantially central portion of the cartridge case 1 (second case half 1b), and the first shutter 3 opens the opening 6. It is designed to occlude. Although the shutters 3 and 4 are actually arranged inside the cartridge case 1, in FIG.
In order to clarify the positional relationship of No. 4, the solid line (closed position) and the one-dot chain line (open position) are shown.

As shown in the figure, the storage unit 5 is arranged at a position on the upstream half in the cartridge insertion direction X, between the opening 6 of the cartridge storage case 1 and the tip portion 7 in the cartridge insertion direction.

As shown in FIG. 2, a hub retainer 8 is supported at a substantially central portion of the upper surface of the cartridge case 1. The front side surface of the cartridge case 1 is opened, and the tray 9 is inserted therein so that it can be taken in and out, and the information recording disk 2 is inserted into the disk storage recess 29 of the tray 9.
Is rotatably stored. With the information recording disk 2 stored, the central portion of the information recording disk 2 faces the hub retainer 8.

With the tray 9 housed in the cartridge case 1, the front side of the tray 9 partially projects from the cartridge case 1. The tray 9 can be pulled out from the cartridge storage case 1 by sandwiching this protruding portion with fingers, and the information recording disk 2 can be attached to the recording / reproducing apparatus by itself.

The cartridge case 1 is the first case half 1.
It is composed of a and the second case half 1b, and by combining them, a tray storage space, a shutter storage space, a storage storage space, etc. are formed inside.

An opening 6 is formed substantially in the center of the second case half body 1b, and a terminal insertion port 10 is opened at a position between the opening 6 and the tip portion 7 in the cartridge insertion direction and near the tip portion.
The opening 6 and the terminal insertion port 10 are provided on the same straight line along the cartridge insertion direction X. A printed circuit board 12 having an external storage element (SRAM, E ² PROM, etc.), a battery, etc. mounted thereon is arranged above the terminal insertion port 10, and FIG.
The contact terminal portion 13 formed on the printed circuit board 12 like
Is exposed at the terminal insertion port 10 side. As shown in FIGS. 11 and 12, two positioning pin insertion holes 11a and 11b are formed in the vicinity of the distal end portion 7 of the second case half body 1b in the cartridge insertion direction at predetermined intervals. There is a rib around the positioning pin insertion hole 11a, which also serves to position the printed circuit board 12.

As described above, the opening 6 is formed by the first shutter 3 and the terminal insertion port 10 is formed by the second shutter 4.
Although they are opened and closed respectively, these shatters 3, 4
In order to allow the sliding movement of the first case 22, as shown in FIG. 2, the second case half 1b is formed with the first recess 22 including the opening 6 and the second recess 23 including the terminal insertion port 10. The first shutter 3 has the second shutter 4 in the second recess 23,
Each is stored slidably. As shown in FIGS. 3 and 4, the second shutter 4 is arranged between the second case half body 1b and the printed circuit board 12 fixed thereto, and slides in the arrow direction. Therefore, as shown in the figure, when the terminal insertion opening 10 is closed by the second shutter 4, that is, when the disk cartridge is not used, the second shutter is provided between the inside of the cartridge case 1 and the terminal insertion opening 10. 4 and the double wall of the printed circuit board 12 are closed. 3 shows a closed state of the terminal insertion port 10 and FIG. 4 shows an opened state of the terminal insertion port 10.
It is exposed from 0 and contacts the external terminal 59.

Next, the shape and structure of each component will be described. 5 is a plan view of the first case half 1a, FIG. 6 is a bottom view of the first case half 1a, FIG. 7 is a front view of the first case half 1a, and FIG. 8 is a side view of the first case half 1a. Figure, Figure 9 is Figure 6
FIG. 10 is an enlarged sectional view taken along the line EE, and FIG. 10 is an enlarged sectional view taken along the line ROLL-LO in FIG.

As shown in FIG. 5, a mounting hole 14 for mounting the hub retainer 8 is provided at a substantially central portion of the first case half body 1a. Two tray lock holes 15 are formed on the front side of the first case half body 1a at predetermined intervals. As shown in FIG. 2, when the lock protrusions 16 on the tray 9 side are fitted in the tray lock holes 15,
The tray 9 is locked in the cartridge storage case 1 so as not to drop off unexpectedly. When pulling out the tray 9, it suffices to push the lock projection 16 with a finger to release the engagement between the cartridge case 1 and the tray 9 and pull out the tray 9.

The lock projection 16 has the effect of fixing the tray 9 to the second case half body 1b by its elasticity and eliminating vertical play.

Although not shown in the figure, the locking projection 1
A pin for restricting the pushing is provided on the back surface of the locking protrusion 16 or on the case side so as not to be damaged when 6 is pushed in more than necessary.

As shown in FIGS. 6 to 9, the first case half body 1a
A plurality of locking claws 17 are projectingly provided on the left and right sidewalls at predetermined intervals so as to engage with the second case half body 1b. As shown in FIG. 6, linearly extending ridges 18 (18a, 18b) are provided on the inner side of the first case half body 1a opposite to the tray lock hole 15.
As shown in FIG. 10, 8 is a low ridge 18 having a relatively low height.
a and a high ridge 18b having a relatively high height following it, and a step 1 is formed between the low ridge 18a and the high ridge 18b.
9 (see FIGS. 6 and 10) are formed.

A holding rib 20 for holding the printed circuit board 12 with the second case half 1b is provided on the front side of the low protrusion 18a. Also, the arrow Y in FIG.
Shows the direction of loading and unloading the tray 9, and guide ribs 21 for guiding the loading and unloading of the tray 9 are formed on the inner surface of the first case half 1a.

As shown in FIG. 6, the tray lock hole 1 is formed.
The retaining claws 52 and 52 are provided in front of 5 and 15 so as to engage with a part of the tray 9 so that the tray 9 cannot be completely removed from the cartridge case 1.

When the tray 9 is completely removed from the cartridge storage case 1, the tray 9 and the information recording disk 2 may be dropped to damage the information recording disk 2. Therefore, in the present embodiment, the tray 9 is attached to the cartridge storage case 1. It does not come off completely.

FIG. 11 is a plan view of the second case half body 1b, FIG. 12 is a bottom view of the second case half body 1b, FIG. 13 is an enlarged sectional view taken along the line of FIG. 11, and FIG. 14 is FIG. It is an expanded sectional view on the 2nd line.

As shown in FIG. 11, on the downstream side of the opening 6 in the cartridge insertion direction X, the first shutter accommodating recess 22 is formed.
However, second shutter housing recesses 23 are formed on the downstream side of the cartridge insertion direction X of the terminal insertion port 10.

A guide groove 24 extending linearly is provided on the front side of the first shutter accommodating recess 22.
It is formed over the entire width of 2. As shown in FIGS. 11 to 13, the guide groove 24 penetrates toward the lower surface of the second case half 1b at a portion facing the opening 6 and forms a bottomed concave groove at the other portions. . As shown in FIG. 13, the penetrating portion of the guide groove 24 is provided with a shutter pressing member 25 that integrally projects from the inner surface side of the second case half body 1b.

As shown in FIG. 11, the second case half body 1b
On the left and right side surfaces of the first case half 1a of the locking claw 1
A plurality of engaging portions 26 that engage with 7 are formed.

As shown in FIGS. 11 and 13 to 14, the second
A projecting ridge 27 extending linearly is provided on the inner side of the case half 1b, and the projecting ridge 27 has a relatively low height and is a low ridge 27a.
And a high protrusion 27b having a relatively high height subsequent thereto, and a step 28 (see FIGS. 11 and 14) is formed between the low protrusion 27a and the high protrusion 27b.

First case half 1a and second case half 1b
When combined with, the low ridge 18a on the first case half 1a side
And the low ridge 27a on the second case half 1b side face each other, and the high ridge 18b and the second case half 1 on the first case half 1a side face each other.
The high ridge 27b on the b side faces.

The steps 19 and 28 have a function of a stopper for preventing the shutter 4 from sliding for a certain distance when the shutter 4 is closed.

As other methods, there are a method of engaging the slider with a stopper provided at another position other than the step, and a method of engaging with the side surface of the shutter. The stopper using the step is the shutter. It is advantageous in terms of slidability that the force when sliding is less likely to rotate the shutter. Further, it is advantageous when the space is limited, rather than providing a stopper at another position.

FIG. 15 is a plan view of the tray 9, and FIG. 16 is FIG.
FIG. 5 is a sectional view taken along line 5-ho.

As shown in FIG. 15, a circular disk accommodating recess 29 is formed substantially in the center of the tray 9, and a substantially rectangular opening 30 is provided in the center of the circular disk accommodating recess 29.

A handle portion 31 is formed on the front side of the disk accommodating recess 29, and the handle portion 31 projects from the cartridge case 1 even when the tray 9 is accommodated in the cartridge case 1.

Positioning pin insertion holes 32a and 32b are formed at predetermined positions of the tray 9 so that when the tray 9 is housed in the cartridge case 1, the cartridge case 1 is opened.
The positioning pin insertion holes 11a and 11b on the side and the positioning pin insertion holes 32a and 32b on the tray 9 side are designed to overlap with each other.

When it is necessary to accurately position the cartridge case 1 and the tray 9, the positioning pin insertion holes 11a and 32a and the positioning pin insertion holes 11b and 32b are simultaneously engaged with the positioning pin on the drive side. This will be possible.

A plurality of elastic protrusions 33 are formed at a predetermined interval on the front and back of one side surface of the tray 9.
Prevents the rattling of the tray 9 by elastically contacting the inner surface of the side wall of the cartridge case 1, and further presses the tray 9 against the side surface of the case opposite to the elastic projection 33 to position the cartridge case 1 and the tray 9. I do.

As shown in FIGS. 2 and 15, two slide grooves 40 extending in the direction of pulling out the tray 9 are formed on the front side and the opposite side of the disk storage recess 29, and the first slide grooves 40 are formed in the slide grooves 40. The retaining claw 52 of the half case 1a
When the tray 9 is pulled out and the tray 9 is pulled out, the retaining claws 52 are hooked on the end portions 41 of the slide grooves 40 so that the tray 9 cannot be separated from the cartridge case 1.

The slide groove 40 also serves to increase the rigidity of the tray 9.

As shown in FIG. 2, the first shutter 3 is used by integrally combining and joining a shutter plate 35 and a slider 36. In this case, a metal shutter plate and a resin slider can be used. When both the shutter plate and the slider are made of a resin material, it is possible to use one formed of an integral synthetic resin. The shutter plate 35 has a size that surely covers the opening 6 of the cartridge case 1 and the opening 30 of the tray 9, and extends over substantially the entire width of the shutter plate 35 on its free end side (the side opposite to the slider 36). The claw portion 37 is formed, and the claw portion 37 is engaged with the guide groove 24 of the second half case 1b (see FIG. 17).

The shutter plate is made of, for example, ABS resin, graphite, carbon powder such as acetylene black powder, or SnO ₂ , I.
By using a conductive resin material in which a filler of a conductive material such as n ₂ O ₃ is added and mixed, effects such as antistatic and dustproof can be obtained. The conductivity of the shutter plate at this time is sufficient if it has a specific resistance of 10 ^-9 or less. If the inner surface of the cartridge case 1 is made electrically conductive in the same manner as the shutter plate, the effects such as antistatic and dustproof can be obtained.

As shown in FIG. 2, the side surface of the slider 36 is H-shaped, and grooves 39 are formed on both upper and lower surfaces, and the upper groove 39a is engaged with the protrusion 18b of the first half case 1a.
The lower groove portion 39b engages with the ridge 27b of the second half case 1b.

FIG. 18 is a plan view of the second shutter 4, FIG.
FIG. 4 is a right side view of the second shutter 4.

The second shutter 4 is made of an integral body of the shutter plate 42 and the slider 43 and is made of synthetic resin. Similar to the first shutter 3, by providing conductivity, an effect of preventing dust from adhering to the terminals can be obtained. Alternatively, the shutter plate may be made of metal and a resin slider may be combined. The shutter plate 42 has an area that surely covers the terminal insertion opening 10 of the cartridge case 1.

As shown in FIG. 19, a groove 44 is formed on one surface of the slider 43, a pin abutting protrusion 45 is provided on the slider 43, and a second pin 58 provided on the recording / reproducing apparatus side is a pin. The second projection 4 is brought into contact with the contact projection 45, and the second shutter 4 is automatically opened as the disk cartridge is inserted.

FIG. 20 is a plan view of the printed circuit board 12 on which the IC chip 46, the CPU 34, the data backup battery 51 and the like are mounted, and a predetermined wiring pattern (not shown).
The contact terminal portion 13 and the mounting holes 47a and 47b are formed. The contact terminal portion 13 is provided at a position facing the terminal insertion opening 10 of the cartridge case 1. As shown in FIG. 11, the cylindrical portion 53 formed on the outer periphery of the reference pin insertion hole 11a is fitted into the one mounting hole 47a to position the printed circuit board 12.

That is, the contact terminal portion 13 on the printed circuit board 12 is composed of a plurality of terminals (not shown), and each terminal contacts a plurality of external terminals 59 (see FIG. 4). The positional relationship of the terminals 59 must be proper. Therefore, as described above, the printed circuit board 1
The terminal insertion hole 10 that the second contact terminal portion 13 faces is between the reference pin insertion hole 11a and the opening 6, and preferably the reference pin insertion hole 1
It is provided near 1a.

If the terminal insertion hole 10 is formed on the opposite side of the reference pin insertion hole 11a with the opening 6 as a boundary, the terminal insertion hole 10 will be far away from the reference pin insertion hole 11a. Therefore, each terminal of the contact terminal portion 13 and the external terminal 5
There is a concern that the correspondence relationship of 9 will shift and it will not be possible to give a proper signal.

FIG. 21 is an exploded sectional view of the hub retainer 8 (see FIG. 2). The hub retainer 8 comprises a clamper 48 and a lid 49. The clamper 48 is a disc-shaped one obtained by pressing a metal plate, and has a flange portion 50 on the periphery thereof.
8 is rotatably arranged in the mounting hole 14 (see FIG. 2) of the first case half 1a.

That is, the mounting hole 14 is shown in FIGS.
As shown in, a first step portion 62 having a small diameter and located inside the first case half body 1a, and a second step portion 63 having a large diameter and located above the first step portion 62 are provided. Clamper 48
The flange portion 50 is rotatably mounted on the first step portion 62, and the disk-shaped lid 49 having a diameter larger than that of the clamper 48 is mounted on the second step portion 63 and fixed by welding or adhesion. The clamper 48 is prevented from coming off by the lid 49.

When the disc cartridge is assembled,
The first case half 1a is provided in one groove portion 39 of the first shutter 3.
Of the second case half 1 in the groove 39 on the other side.
The high protrusions 27b of b are slidably fitted therein. Further, the low protrusion 27a of the second case half body 1b is fitted into the groove 44 below the second shutter 4, and the low protrusion 18a of the first case half body 1a is slid on the pin contact portion 45 side so as to be opposed thereto. Supported as possible. Therefore, the slider 36 of the first shutter 3 and the slider 43 of the second shutter 4 are projected 27
Are aligned in a straight line on top of. Although not shown, a groove for opening and closing a shutter is formed on the back surface of the cartridge case 1 from the tip end 7 side in the cartridge insertion direction, and the slider 36 of the first shutter 3 and the second groove are formed in the groove for opening and closing the shutter.
The slider 43 of the shutter 4 faces.

In a state before the disc cartridge is inserted into the recording / reproducing apparatus, the opening 6 is closed by the first shutter 3 and the terminal insertion port 10 is closed by the second shutter 4. As shown in FIG. 2, the first shutter 3 and the cartridge case 1
A spring 54 is interposed between the first shutter 3 and the second shutter 4 by the elastic force between the spring 54 and the side wall 55. Reference numeral 56 shown in FIG. 2 is a sheer dust stopper, which is held between the spring 54 and the sheer dust stopper 56 in a state in which the first shutter 3 and the second shutter 4 are in contact with each other. Reference numeral 57 is a battery holder.

On the other hand, the recording / reproducing apparatus includes the first shutter 3
A relatively short first pin (not shown) for pushing open the second shutter 4 and a relatively long second pin 58 for pushing the second shutter 4 open at a predetermined interval.
It projects in the direction orthogonal to. The first pin is on the front side of the cartridge insertion opening (not shown) of the recording / reproducing apparatus, and the second pin 58 is on the back side of the first pin.

When the disk cartridge is inserted into the recording / reproducing apparatus, the tip of the first pin is first inserted into the shutter opening / closing groove. Since the first pin is short, it does not come into contact with the slider 43 of the second shutter 4 but passes directly beside it, and comes into contact with the end of the slider 36 of the first shutter 3.

When the disk cartridge is further inserted, the spring 54 is elastically deformed, while the first shutter 3 remains in the position in contact with the first pin, and the opening 6 is opened as the disk cartridge is inserted. The long second pin 58 abuts the slider 43 of the second shutter 4 when it is opened halfway.

The first pin contacts the first shutter 3 and the second pin
When the disk cartridge is continuously inserted with the pin 58 in contact with the second shutter 4, the terminal insertion opening 10 is also opened, and when the disk cartridge is inserted to a predetermined position, the opening 6 and the terminal are inserted. The mouth 10 is completely opened, and the contact terminal portion 13 is exposed from the inside of the terminal insertion opening 10.

In this way, when the second pin 58 is in the open position, one end of the slider 43 of the second shutter 4 has one ridge 1.
The second shutter 4 is prevented from moving toward the opening 6 further by hitting the steps 19 and 28 in the middle of 8 and 27. Therefore, the second shutter 4 is held between the steps 19, 28 and the second pin 58, and the first shutter 3 is held between the elastically deformed spring 54 and the first pin.
The second shutter 4 is arranged between the opening 6 and the terminal insertion opening 10 as shown in FIG.

FIG. 4 is an enlarged sectional view showing a contact state between the contact terminal portion 13 and the external terminal 59.

When the second shutter 4 moves relatively and the terminal insertion port 10 opens as described above, the external terminal 59 on the host computer side is inserted from the terminal insertion port 10 and comes into contact with the contact terminal port 13. , Host computer and CPU 34
Data is exchanged with (see FIG. 20). This data is, for example, game data relating to game play or index data of the information recording disk 2.

When the disk cartridge is discharged from the recording / reproducing apparatus, the opening 6 is gradually closed by the restoring force of the spring 54 while being sandwiched between the spring 54 and the first pin. The second pin 58 is separated from the second shutter 4 as the disk cartridge is pulled out, and the second shutter 4 remains in the open position.

When the disk cartridge is further pulled out, the end of the first shutter 3 comes into contact with the end of the second shutter 4. If you continue to pull out the Disk Cartridge,
While the second shutter 4 is pushed back together with the first shutter 3 by the restoring force of the spring 54, the first pin passes through the vicinity of the slider 43 of the second shutter 4 and the opening 6 and the terminal insertion port 10 are respectively inserted in the shutter 3, Covered by 4.

22 to 24 are views for explaining another embodiment of the present invention. It is necessary to make sure that the contact terminal portion 13 is not scratched so that dust does not adhere to it. FIG. 22 is an example for forming a gap 60 between the second shutter 4 and the contact terminal portion 13 shown in FIG. 3 of the embodiment in FIG. As a specific means for forming the gap 60, in this example, four rounded projections 61 are formed on the shutter plate 42 of the second shutter 4 at upper, lower, left and right positions not facing the contact terminal portion 13.

Further, the two elongated protrusions 61 can be formed at upper and lower positions which do not face the contact terminal portions 13 of the shutter plate 42. It is also possible to attach a spacer to a portion of the printed circuit board 12 excluding the contact terminal portion 13 to form a gap 60 between the second shutter 4 and the contact terminal portion 13.

It is possible not to provide the gap 60 as in the embodiment, but in that case, the shutter 4 is scraped between the shutter 4 and the contact terminal portion 13 to generate dust or the contact terminal. The part 13 is scraped or scratched, which causes problems such as poor contact and short life, and reliability.

However, as shown in FIG. 25, a thin felt-like body 62 such as a lens cleaner cloth which does not generate dust can be attached to the shutter 4. By doing so, the cleaning effect of the contact terminal portion 13 can be expected.

[0070]

As described above, according to the present invention, the cartridge storage recess is provided inside the cartridge case, and the shutter is stored in the recess, so that the shutter does not project to the outside of the cartridge case as in the conventional case, and the space is reduced. The efficiency is good, and as a result, there is no increase in size, and the disk cartridge can be downsized.

Further, by providing the cartridge storage case with the shutter accommodating recess, the mechanical strength is weakened because the case portion in which the recess is formed is thin, but since there is a shutter in the accommodating recess, the shutter is Has a reinforcing function. Therefore, there is no concern that the cartridge case may be deformed by an external force.

Further, since the shutter is arranged between the cartridge case and the printed circuit board and the upper and lower surfaces of the shutter are regulated by the cartridge case and the printed circuit board, the shutter tends to open like the conventional case. Without such a situation, there is an advantage that the function of the shutter, that is, dustproof, protection from electrostatic breakdown, etc. can be surely exhibited.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a disk cartridge according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the disk cartridge.

FIG. 3 is a partially enlarged cross-sectional view showing a state in which a terminal insertion port is closed.

FIG. 4 is a partially enlarged cross-sectional view showing a state in which a terminal insertion port is opened.

FIG. 5 is a plan view of the first case half body.

FIG. 6 is a bottom view of the first case half body.

FIG. 7 is a front view of the first case half body.

FIG. 8 is a side view of the first case half body.

FIG. 9 is an enlarged cross-sectional view taken along the line EE in FIG.

FIG. 10 is an enlarged cross-sectional view taken along the line of FIG.

FIG. 11 is a plan view of a second case half body.

FIG. 12 is a bottom view of the second case half body.

FIG. 13 is an enlarged sectional view taken along the line of FIG.

FIG. 14 is an enlarged cross-sectional view taken along the line II-II in FIG.

FIG. 15 is a plan view of the tray.

16 is a sectional view taken along the line HO of FIG.

FIG. 17 is a partially enlarged cross-sectional view showing an engaged state of the first half case and the first shutter.

FIG. 18 is a plan view of the second shutter.

FIG. 19 is a right side view of the second shutter.

FIG. 20 is a plan view of a printed circuit board.

FIG. 21 is an exploded sectional view of the hub retainer.

FIG. 22 is a partially enlarged cross-sectional view showing a state where the terminal insertion opening according to the modified example of the present invention is closed.

FIG. 23 is a plan view of a second shutter according to the modification.

FIG. 24 is a right side view of the second shutter.

FIG. 25 is a diagram showing a modified example of the shutter.

[Explanation of symbols]

 1 Cartridge case 2 Information recording disk 3 1st shutter 4 2nd shutter 5 Storage part 6 Opening 9 Tray 10 Terminal insertion port 13 Contact terminal part 34 CPU 35, 42 Shutter plate 36, 43 Slider 45 Pin contact part 46 IC chip 54 Spring 58 Second Pin 59 External Terminal 60 Gap 61 Projection X Cartridge Insertion Direction

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tamotsu Iida 1-88, Tora, Ibaraki-shi, Osaka Prefecture Hitachi Maxell Co., Ltd. (72) Inventor Kinse Tsuburaya 1-88-1 Tora, Ibaraki, Osaka Prefecture Hitachi Maxel Co., Ltd. (72) Inventor Yoshitake Kato 1-88, Tora, Ibaraki-shi, Osaka Prefecture Hitachi Maxel Co., Ltd. (72) Inventor Masanori Uematsu 60 Fukuinekamitakamatsucho, Higashiyama-ku, Kyoto Prefecture Nintendo Incorporated (72) Inventor Masayuki Yukawa 60 Fukuinekami Takamatsucho, Higashiyama-ku, Kyoto City, Kyoto Prefecture Nintendo Co., Ltd. (72) Inventor Junji Takamoto 60 Fukuinekami Takamatsucho, Higashiyama-ku, Kyoto Prefecture Kyoto Nintendo Co., Ltd. (72 ) Inventor Masahiko Ota 60 Fukuinekami Takamatsu-cho, Higashiyama-ku, Kyoto City, Kyoto Prefecture Nintendo Co., Ltd.

Claims (2)

[Claims] 1. A cartridge storage case in which a shutter storage recess having a terminal insertion opening is formed on an inner wall of the case, an information recording disk rotatably stored in the cartridge storage case, and the cartridge storage case in which the cartridge storage case is mounted. A printed circuit board for an IC memory, which is fixed at a position facing the terminal insertion opening, and a contact terminal portion is exposed toward the terminal insertion opening side; and a cartridge storage case and an IC memory in the cartridge storage recess of the cartridge storage case. And a contactor portion of the IC memory printed circuit board covered with the shutter in a state in which the terminal insertion port is closed by the shutter. Disk Cartridge that does. 2. The reference pin insertion hole is provided at one end of the cartridge case, the head access opening is formed substantially in the center of the cartridge case, and the terminal insertion port is A disk cartridge which is provided between the reference pin insertion hole and the head access opening.