JP2002104567A - Storing case for magnetic disk cartridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a storing case for a magnetic disk cartridge in which a circular plate-like magnetic disk is rotatably stored in a flat cartridge shell having each of through-pass holes in at least two corners of the four corners in it and further prevent a stored magnetic disk cartridge from being influenced by an excessive shrinking stress even if resin having a high thermal shrinkage rate as compared with that of resin used in the cartridge shell is used in the storing case. SOLUTION: A storing case 60 is provided with steps 65 supporting a cartridge shell at least three locations on its surface in a thickness direction. Supporting columns 66 inserted into each of through-pass holes 26, 28 of the cartridge shell are protruded and arranged on at least a pair of surfaces of these steps 65 and at the same time one of a pair of supporting columns 66, 66 is fitted to the through-pass hole 26 to support the cartridge shell in a planar direction, and the remaining supporting column 66 is loosely fitted to the through-pass hole 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage case for a magnetic disk cartridge in which a disk-shaped magnetic disk is rotatably stored in a flat cartridge shell, and more particularly to a storage case for a magnetic disk cartridge in the storage case. It relates to a holding structure.

[0002]

2. Description of the Related Art Conventionally, a magnetic disk is provided with magnetic layers on both sides of a disk-shaped base made of a flexible polyester sheet or the like, and magnetic recording is performed on the magnetic layers by a magnetic head while being driven to rotate (a so-called floppy disk). (Registered trademark) disk) is provided in a flat cartridge shell, and is widely used mainly as a recording medium for a computer because of its advantages such as easy handling and low cost.

The magnetic disk cartridge has a magnetically attractable center core at the center of the magnetic disk, and a hole is formed on the lower surface of the cartridge shell so that the center core is exposed to the outside. When loaded, the motor spindle of the drive device is magnetically chucked with the center core to rotate the magnetic disk.

[0004] The cartridge shell has a shell window through which a magnetic head for magnetic recording and reproduction can access one or both sides of the magnetic disk, and further prevents dust and the like from entering when not in use. A shutter member slidable between an open position for opening the window portion and a closed position for closing the window portion is mounted, and the shutter member is urged in a closing direction by a shutter spring.

[0005] By the way, the miniaturization of the computer using the magnetic disk cartridge as described above has progressed, and the notebook type personal computer has become widespread. An external system without a built-in disk drive device is now being sold. The adoption of this external method is excellent in terms of portability of small personal computers, but, for example, it is not possible to record and reproduce large amounts of data because magnetic disk cartridges cannot be used at the destination of small computers. Also, there is a problem that data cannot be recorded on a plurality of magnetic disk cartridges.

[0006] From these points, some small personal computers have a PC card slot (conforming to the PCMC IA specification) in which a PC card is mounted so as to be compatible with an external interface and an additional memory. Thus, it has been proposed to configure an external storage device using a magnetic disk cartridge.

A PC that can be inserted into the PC card slot
The specifications of the card are type II, the thickness is 5.0 mm, and the thickness of the magnetic disk cartridge and the disk drive device is to be configured within this thickness. It has to be made ultra-thin.

[0008]

The above-mentioned magnetic disk cartridge is housed and held in a sealed case made of synthetic resin in order to prevent dust from entering the cartridge shell from outside when not in use. Often. In this case, in order to increase the sealing performance of the case itself and to suppress the manufacturing cost, a flexible polyolefin resin such as a PP resin capable of connecting the case body and the lid member with an integral hinge portion. Is often used.

However, since the polyolefin resin has a higher heat shrinkage than the ABS resin, PS resin or metal case generally used for the cartridge shell, the magnetic disk cartridge can be stored in the storage case at a high temperature for a long time. If left unattended or if the magnetic disk cartridge is wrapped in a shrink wrapping film in a storage case, the storage case shrinks significantly compared to the cartridge shell, and the built-in magnetic In many cases, a clamping force is applied to the disk cartridge to deform the magnetic disk cartridge.

In this case, if the magnetic disk cartridge is loosely stored in the storage case, deformation of the magnetic disk cartridge can be avoided. However, if the magnetic disk cartridge is loosely stored in the storage case. If it is subjected to vibration or shock during the distribution process, the magnetic disk cartridge housed inside jumps up, the cartridge shell and the inner wall of the storage case collide, and dust is generated in the plastic part. The risk of adversely affecting the recording / reproducing characteristics of the disk cartridge, such as data loss, increases.

In addition, many of the above-mentioned ultra-small magnetic disk cartridges are portable and used for mobile use or the like. It is necessary to devise measures to prevent the storage case from dropping and forgotten.

Further, the magnetic disk cartridge stored in the storage case has a holding means for the magnetic disk having the center core at the center even if the cartridge shell is held on the inner wall surface of the storage case. Therefore, when vibrations are applied from the outside during the distribution process, there is also a danger that the magnetic disk or the center core may hit the inner wall surface of the cartridge shell and generate dust on the plastic part and scratches on the recording surface of the magnetic disk. It is expensive.

In view of the above-mentioned circumstances, a first object of the present invention is to store a resin even when a resin having a higher heat shrinkage than a resin used for a cartridge shell is used for a storage case. An object of the present invention is to provide a storage case that prevents a magnetic disk cartridge from being subjected to excessive shrinkage stress.

A second object of the present invention is to prevent the cartridge shell and the inner wall surface of the storage case from colliding with each other even if the case housing the magnetic disk cartridge receives vibration or impact. Another object of the present invention is to provide a storage case that suppresses the problem.

A third object of the present invention is to provide a storage case which prevents the lid member from being erroneously opened, the storage case from being dropped, or being left behind.

A fourth object of the present invention is to prevent unnecessary rotation and vibration of the center core and the magnetic disk when the case containing the magnetic disk cartridge is subjected to vibration or impact, thereby preventing dust generation. Another object of the present invention is to provide an improved storage case.

[0017]

In order to achieve the first and second objects, the present invention provides a disk cartridge having a flat cartridge shell having through holes in at least two of the four corners. A magnetic disk cartridge accommodating the magnetic disk of the present invention in a rotatable manner, comprising a step for supporting the cartridge shell in at least three places on the surface thereof in the thickness direction, and among these steps, On at least one pair of surfaces, columns are respectively inserted into the through holes of the cartridge shell, and
One of the supports is fitted in the through hole to support the cartridge shell in the surface direction, and the remaining supports are loosely fitted in the through holes.

In this case, at least one of the pair of through-holes
Preferably, the through hole into which the support is fitted is circular, and the through hole into which the support is loosely fitted is a hole having an inner diameter that varies depending on the direction, such as an elliptical, oval, or rectangular hole.

The strut fitted into the through-hole and the strut loosely fitted into the through-hole are aligned in the maximum shrinking direction of the storage case, and have the length of the elliptical hole or the oblong hole of the magnetic disk cartridge. It is preferable that the axial direction coincides with the maximum contraction direction of the storage case when stored in the storage case.

In order to achieve the second and third objects, the present invention is directed to a storage case for a magnetic disk cartridge in which a disk-shaped magnetic disk is rotatably stored in a flat cartridge shell. A case body, a lid member provided on the case body so as to be openable and closable, and a clip member made of an elastic material for locking the lid member in a closed position. is there.

When the clip member is in the locked state, it is preferable that the clip member is pressed against the magnetic disk cartridge stored in the storage case with an appropriate pressure via the storage case. In this case, it is preferable that the clip member presses a center core portion substantially at the center of the magnetic disk cartridge.

When the magnetic disk cartridge stored in the storage case is stored in, for example, a user's breast pocket, the distal end of the clip member has a function as a clip means for the breast pocket. Is preferred.

Further, in order to achieve the fourth object,
The present invention is a storage case for a magnetic disk cartridge in which a disk-shaped magnetic disk having a magnetically attractable center core is rotatably housed in a flat cartridge shell, and includes a case body and a case body. A lid member that can be opened and closed, and a position corresponding to the center core of the case body or the lid member for sucking a center core of a magnetic disk cartridge housed therein to prevent rotation and movement of the center core. And a magnet member provided in the above.

In this case, prior to removing the magnetic disk cartridge from the storage case, at least a part of the magnet member is separated from the center core to reduce the effective magnetic attraction force, and then the magnetic disk cartridge is removed from the storage case. It is preferable to take it out of the container.

For this reason, it is preferable that the storage case is made flexible and the magnet member is formed of a flexible material such as a rubber magnet.

The position of the magnet member when the storage case is closed is such that the center core is pushed up into the cartridge shell so that at least a portion of the flexible magnetic disk near the center core does not contact the inner wall surface of the shell. Is preferably set to.

[0027]

According to the present invention, on the inner surface of the storage case,
A step for supporting the magnetic disk cartridge in at least three places on its surface in the thickness direction; a column inserted into each of the two through holes of the magnetic disk cartridge; and one of the through holes However, since it has an inner diameter that fits tightly to the support, and the other through hole is loosely fitted to the support, even when the storage case storing the magnetic disk cartridge is subjected to vibration or impact, Rubbing between the cartridge shell and the storage case can be prevented, and dust generation from the cartridge shell and / or the storage case can be suppressed.

The cartridge shell 2
In the case where the other through-hole is an elliptical hole or an oval hole whose major axis is a straight line direction connecting the through-holes, the interval between the columns fluctuates due to thermal contraction of the storage case. By absorbing this, it is possible to prevent mechanical stress from being applied to the magnetic disk cartridge.

Further, according to the present invention, since the elastic clip member for locking the lid member to the case body in the closed state is provided, the lid member is opened carelessly during use (during transportation, etc.). And the center of the magnetic disk cartridge can be pressed by the top end of the clip member via the top plate of the lid member. Rubbing with the storage case can be prevented.

Further, according to the present invention, since the magnet member is provided at a position corresponding to the center core of the case body or the lid member, the center core of the magnetic disk cartridge housed in the case is attracted to the magnet member. When the storage case is subjected to vibration or impact during transportation, unnecessary rotation and movement of the center core and the magnetic disk are suppressed. And the occurrence of errors due to scratches on the recording surface can be prevented, and the reliability can be improved.

[0031]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view schematically showing a first embodiment of a storage case for a magnetic disk cartridge according to the present invention together with the magnetic disk cartridge with its lid member opened. In FIG. 1, a storage case 60 entirely formed in a flat rectangular shape (54 × 59 mm) of, for example, PP resin has a case main body 61 for housing the magnetic disk cartridge 1 and a hinge portion 63 with respect to the case main body 61. Lid member 62 integrally connected
And is constituted by.

Prior to the detailed description of the structure of the storage case 60, an example of the configuration of the magnetic disk cartridge 1 stored in the storage case 60 will be described with reference to FIGS.

FIG. 2 is a perspective view of the magnetic disk cartridge as viewed from above, FIG. 3 is a perspective view of the magnetic disk cartridge as viewed from below, and FIG. 4 is an exploded perspective view thereof. 2 shows a state in which the window for inserting a magnetic head is closed by a shutter member, and FIG. 3 shows a state in which the window for inserting a magnetic head is opened. In addition, in FIGS. 1 to 4, for clarity of the structure, the thickness and the like of each part in the drawings are shown at a ratio different from the actual size.

The magnetic disk cartridge 1 has a disk-shaped magnetic disk 10 (see FIG. 4) rotatably housed in a flat cartridge shell C. The cartridge shell C includes a base plate 2 serving as a central member, and upper and lower cover plates 3 and 4 having a substantially planar shape attached to the upper and lower sides of the base plate 2. The magnetic disk 10 has a disk-shaped base made of a flexible polyester sheet or the like, on both sides of which magnetic layers are provided, and a center core 11 having magnetic attraction is fixed and integrated at the center thereof.

A hole 7 is provided on the lower surface of the cartridge shell C to enable magnetic chucking between the drive motor of the drive device and the center core 11, and the magnetic disk is positioned so that the bottom of the center core 11 faces the hole 7. 10 are housed in the cartridge shell C.

A window 8 is formed at the front end of the cartridge shell C with respect to the insertion direction D (arrow in FIG. 2) with respect to the drive device so that the recording / reproducing magnetic head can be accessed. The window 8 is vertically penetrated and opened from the front end surfaces of the base plate 2 and the upper and lower cover plates 3 and 4 toward the center thereof in a rectangular shape (see FIG. 3). A shutter member 5 for opening and closing the portion 8 is built inside the upper and lower cover plates 3 and 4 so as to be slidable in the left-right direction.

With the structure of the window 8 as described above, the recording / reproducing magnetic head can be inserted into the window 8 from the front end face side of the cartridge shell C without opening and closing greatly, and a built-in shutter member. The use of 5 prevents the shutter member 5 from coming off due to insufficient strength due to miniaturization, becomes tough against dropping, etc., and has good assemblability.

Next, the structure of each component will be specifically described.

First, as shown in the plan view of FIG. 5, the base plate 2 is formed of a synthetic resin such as an ABS resin or a POM resin, and has a substantially rectangular flat plate shape. A circular recess 21 for accommodating the disk 10 is formed, and a center core receiving hole 27 is opened at the center of the bottom plate of the recess 21. Further, the front portion of the bottom plate of the concave portion 21 is removed in a substantially rectangular shape, and the space 2 in which the below-described lower plate portion 52 of the shutter member 5 can move.
2, the central portion of the front end portion of the base plate 2 is removed in the front-rear direction, and the window portion 8 communicating with the space 22 is formed.
Open vertically. The front surface of the front wall on one side (left side in FIG. 5) of the window 8 of the base plate 2
A spring accommodating portion 23 is formed to retreat from the front surface of the front wall on the other side, and an elongated cylindrical coil spring 6 described later as a shutter spring is disposed in this portion.

Further, the corner portions 25 of the four corners of the base plate 2 are formed so as to protrude in the vertical direction and have a large thickness and project outward, and the four corner portions of the upper and lower cover plates 3 and 4 corresponding to these corner portions 25 are formed as described above. The corner portion 25 is cut out in a shape corresponding to the planar shape, and when the upper and lower cover plates 3 and 4 are fitted to the base plate 2, the corner portion 25 of the base plate 2 is exposed to the outside. Each corner portion 25 is provided in such a shape that its surface protrudes flush (flat) or outward with the surface of the upper and lower cover plates 3 and 4.

By exposing the corner portion 25 of the base plate 2 to the outside as described above, when a shock or the like at the time of a drop is applied, the corner portion 25 can absorb the shock, and can be inserted and inserted into the drive device. At the time of unloading operation, it is prevented from getting stuck and stable operation is ensured. Of the four corners 25, the pair of front corners 25, 25 are formed with through holes 26, 28 penetrating vertically, respectively.
6 has a perfect circular shape, while the other through hole 28 is formed in an elliptical shape or an oval shape having a long axis L in a straight line L direction connecting the centers of the left and right through holes 26, 28. . Also,
The corner of the front corner 25 where the through-hole 26 is provided is cut off diagonally to form the erroneous insertion prevention part 16.

The upper and lower cover plates 3 and 4 are formed of a high-strength material such as a pressed stainless steel plate, and the upper cover plate 3 and the lower cover plate 4 have a substantially symmetric shape, and the four corners are rectangular. It is removed, and a flat rectangular shell window 8 is opened in the center of the front part, and the front, rear, left and right edges are bent at right angles, and the front wall parts 31, 41, both side wall parts 32, 42, and the rear wall part 33 are respectively provided. , 43. The front wall portions 31 and 41 on one side (the left side in FIGS. 2 and 4 and the right side in FIG. 3) of the shell window portion 8 are formed to have a low height, and the upper and lower cover plates 3 and 4 are attached to the base plate 2. In this case, the slit 18 is formed between the upper and lower front wall portions 31 and 41. Then, a shutter opening / closing lever (not shown) on the drive device side is inserted into the slit 18 and moves along the slit 18 to open the shutter member 5. The front wall portions 31 and 41 on the opposite side (the right side in FIGS. 2 and 4 and the left side in FIG. 3) with respect to the shell window portion 8, that is, the spring storage portion 23
A notch is formed on the end side of the part located in front of
A rectangular spring insertion opening 19 is formed in a state where the front wall portions 31 and 41 of the upper and lower cover plates 3 and 4 are fitted together, and is used for mounting the elongated cylindrical coil spring 6 as a shutter spring. A hole 7 corresponding to the center core receiving hole 27 of the base plate 2 is opened at the center of the lower cover plate 4.

When the upper and lower cover plates 3 and 4 are assembled to the base plate 2, a shutter member 5 is provided between the upper and lower surfaces of the base plate 2 and the inner surfaces of the upper and lower cover plates 3 and 4 at the front portion. The dimension is set so that a thin space in which the slidable member extends can be formed extending in the left-right direction. In addition, the fixing method in assembling the base plate 2 and the upper and lower cover cases 3 and 4 is, for example, as shown by a symbol S in FIG. 2 and FIG. Done by

The shutter member 5 is inserted between the base plate 2 and the upper and lower cover plates 3 and 4 and into the moving space 22 opened to the base plate 2 on the lower surface side, and is slidably mounted in the left and right opening and closing directions. . The shutter member 5 is made of metal, and is formed in a substantially U-shaped cross-sectional shape by, for example, a stainless steel plate or an aluminum plate.
The upper plate 51 and the lower plate 52 are connected by a connecting plate 53 at the front end, and the height of the connecting plate 53 is formed slightly larger than the thickness of the front part of the base plate 2.
The shutter window 5 is cut out in a substantially rectangular shape from the connecting plate 53 to the upper plate 51 and the lower plate 52.
4 are formed. The shutter window 54 has a size substantially corresponding to the window 8 of the cartridge shell C and communicates with the window 8 during the opening operation.

The shutter member 5 is integrally provided with a spring receiving piece 55 bent from an end of the connecting plate 53 on the window 54 side, and a shutter spring 6 composed of a coil spring is provided on the back of the spring receiving piece 55. The shutter member 5 is urged in the closing direction and held in the closed position.

As shown in FIG. 4, protective sheets 12 made of a plastic sheet or the like obtained by subjecting the surface of a PET sheet to slipping (Teflon (registered trademark) processing) are interposed above and below the magnetic disk 10, as shown in FIG. This protective sheet 12
Has a substantially C-shape including a center hole 12a and a portion 12b removed in the radial direction corresponding to the window portion 8, and an opening 12c is formed in a portion opposite to the window portion 8, and this portion is formed. Then, the cleaning member 13 is fixed to the inner surface of the upper cover plate 3 and the bottom surface of the base plate 2 from the magnetic disk 10 side, and the protection sheet 12 is simultaneously fixed by the fixing of the cleaning member 13. Cleaning member 13
Is brushed on the side facing the magnetic disk 10 and comes into contact with the surface of the magnetic disk 10 to remove dust on the surface. An adhesive is applied to the opposite surface of the cleaning member 13.

The magnetic disk cartridge 1 as described above
After the magnetic sheet 10 is set in the circular concave portion 21 of the base plate 2, the protective sheet 12 is fixed to the circular concave portion 21 of the base plate 2 and the lower surface of the upper cover plate 3 in advance by fixing the cleaning member 13, and then the shutter is released. The member 5 is mounted from the front. Subsequently, the upper cover plate 3 is fitted to the base plate 2 from above, and the lower cover plate 4 is fitted from below to integrate them. Thereby, the upper surface of the circular concave portion 21 of the base plate 2 is covered with the upper cover plate 3, and the flat space defined by the bottom surface of the upper cover plate 3 and the upper surface of the circular concave portion 21 becomes a storage space for the magnetic disk 10, The magnetic disk 10 is rotatably stored. Then, the spring insertion opening 1 in the front wall of the upper and lower cover plates 3 and 4
9, the coil spring 6 is inserted into the spring accommodating portion 23 while being bent, and the tip of the coil spring 6 is attached to the spring receiving piece 55 of the shutter member 5.
, And pushed into the storage portion 23 while shrinking the rear end to complete the assembly. The shape of the spring insertion opening 19 prevents the assembled shutter spring 6 from coming off.

FIG. 6 is a detailed inner view showing the storage case 60 shown in FIG. 1 with its lid member 62 fully opened.
FIG. 7 is an external view thereof. 8 (A) to 8 (D) respectively show a line AA and a line B-B in the case body 61 of FIG.
FIG. 9 is a sectional view taken along lines B, CC and DD.
(A) to (D) respectively show the A'-A 'line, B'-B' line, C'-C 'line and D' in the lid member 62 of FIG.
It is sectional drawing which followed the -D 'line. Further, FIG.
Is a cross-sectional view showing a fitted state of a part of the case main body 61 shown in FIG. 8A and a part of the lid member 62 shown in FIG. 9A, and FIG. 10B is a view of the case main body 61. FIG. 10B is a cross-sectional view showing a fitting state of the part shown in FIG. 8B and the part of the lid member 62 shown in FIG. 9B.

As is clear from FIGS. 8 to 10, a convex edge 61 a is provided on the case body 61 side so that the peripheral walls of the case body 61 and the cover member 62 engage with each other.
A concave edge 62a is provided on the lid member 62 side except for the central portions 61b and 62b of the peripheral wall opposite to the hinge portion 63 side.

At the four corners of the upper surface of the bottom plate of the case body 61,
As is clear from FIG. 1, circular steps 65 projecting from the upper surface of the bottom plate for supporting the lower surfaces of the four corners 25 of the base plate 2 of the magnetic disk cartridge 1 are formed, and the front side thereof is formed. As is clear from FIGS. 6 and 8 (A), a columnar column 66 is provided on the pair of steps 65, 65 so as to be coaxial with the step 65, respectively. These struts 66 are inserted into the through holes 26 and 28 formed in the base plate 2 of the magnetic disk cartridge 1 described above. In this case, the struts 66 fit tightly into the circular through holes 26. However, it is loosely fitted into the elliptical or oval through hole 28 so that it can move only in the direction of the long axis L (FIG. 5).

At the four corners of the inner surface of the top plate of the lid member 62, circular step portions 67 having substantially the same diameter as the circular step portions 67 of the case main body 61 are provided at positions corresponding to the circular step portions 65 of the case body 61. As is clear from FIG. 9, these stepped portions 67 are formed to have a low height, and a pair of the
A circular recess 68 for receiving the tip of the support column 66 is formed coaxially.

Further, the case body 61 and the cover member 62
A circular recess 70 (FIG. 8 (B)) coaxial with the step portion 65 is provided on the case body 61 side so that the storage case 60 can be fitted into each other when the plurality of storage cases 60 are stacked. On the side, a circular convex portion 75 coaxial with the step portion 67 (FIG. 9)
(B)) is formed.

As described above, in the present embodiment, the steps 66 and 67 are provided on the inner surfaces of the case body 61 and the lid member 62 to support the magnetic disk cartridge 1 at four locations on the surface in the thickness direction. And two supporting holes 66, 66 inserted into the two through holes 26, 28 of the magnetic disk cartridge 1, respectively.
Has an inner diameter that fits tightly against the post 66,
The support hole 66 is loosely fitted in the other hole 28 in the direction of the straight line L. However, the magnetic disk cartridge 1 has an inner diameter that does not allow rotational movement around the hole 26 of the magnetic disk cartridge 1. Even if the storage case 60 storing the cartridges is subjected to vibration or impact, the friction between the cartridge shell C and the storage case 60 can be prevented, so that dust generation from the cartridge shell C and / or the storage case 60 can be prevented. Can be suppressed.

Further, of the through holes 26 and 28 provided in the cartridge shell C, the other through hole 28 is provided with the through holes 26 and 2.
Since the hole is an elliptical hole or an oval hole whose major axis is in the direction of the straight line L connecting between the columns 8, even if the spacing between the columns 66, 66 fluctuates due to thermal contraction of the storage case 60, the magnetic disk cartridge 1 can be mechanically mounted. It is possible to prevent a mechanical stress from being applied.

Further, in this embodiment, when the magnetic disk cartridge is stored, the lid member 62 is locked to the case body 61 by the elastic clip member 85 as shown in FIG.
Is appropriately pressed and held. For this reason, as shown in FIGS. 6 and 8C, a thick portion 71 is formed along the center portion of the peripheral wall opposite to the hinge portion 63 side in the case main body 61, and this thickness is formed. Thick part 71
A recess 72 for accommodating the clip pivoting block 80 as shown in FIG. 11 is formed from the outside, and a clip accommodation groove 73 is formed from the recess 72 by the case main body 61.
Along the outer surface of the peripheral wall to the central portion 61b of the peripheral wall opposite to the hinge portion 63 side. The clip receiving groove 76 is formed on the outer surface of the lid member 62 in a manner that the clip receiving groove 73 of the case body 61 is extended.

As shown in FIGS. 6 and 9D, a circular convex portion 7 is formed at the center of the inner surface of the top plate of the lid member 62.
7 is formed, and a quadrangular concave portion 78 is formed on the outer surface and is connected to the clip accommodating groove 76 as shown in FIGS. 7 and 9D. Further, the case body 61
As shown in FIG. 8D, a concave portion 74 as a label attaching portion is formed on the inner surface of the bottom plate.

FIG. 11A is an enlarged plan view of the clip pivot block 80, and FIG. 11B is a view B of FIG. 11A.
11C is an enlarged plan view of the pivot pin 83 of the elastic clip member 85. FIG. A recess 81 for accommodating the base of the elastic clip member 85 is formed on one side edge of the clip pivoting block 80, and a groove 82 for supporting both ends of the pin 83. (Or hole) is formed in the upper surface of the block 80 by the concave portion 81.
Is formed. The clip pivot block 80 is adhered to the recess 72 at the upper surface 80a.

FIGS. 12A and 12B are an enlarged plan view and a side view of the elastic clip member 85. As shown in FIG. A cylindrical base portion 86 supported by the pins 83 in the inside 81, a lower plate portion 87 extending along the groove 73 on the bottom surface of the case main body 61, and the lower plate portion 87
From the case body 61 and the side plate portions 88 along the lateral grooves 73, 76 of the lid member 62.
And an upper plate portion 89 which is bent substantially horizontally at a right angle from the side plate portion 88 and extends to the concave portion 78 along the groove 76 on the upper surface of the lid member 62. A convex portion 90 elastically pressed against the concave portion 78.
It has. The upper plate portion 89 is pressed against the lid member 62 even at a position P above the root portion 86, and generates a clip force for locking the lid member 62 to the case main body 61 between the root portion 86 and the position P. . The convex portion 90 at the tip of the upper plate portion 89 elastically presses the central portion of the magnetic disk cartridge 1 housed therein through the top plate of the lid member 62, and the magnetic disk cartridge 1 is 4 of the main body 61
It has a function of fixing on the step portions 65.

The elastic clip member 85 locks the lid member 62 to the case body 61 in the closed state as described above, and the lid member 62 is accidentally opened during use (during transportation, etc.). And the convex portion 90 at the tip of the clip member 85 presses the central portion of the magnetic disk cartridge 1 through the top plate of the lid member 62.
In combination with the presence of the column 66, even when the storage case 60 is subjected to vibration or impact, it is possible to prevent the cartridge shell C from being rubbed with the storage case 60.

In addition to this, the elastic clip member 85
For example, as schematically shown in FIG. 14, similarly to a clip member provided on a lid of a fountain pen or a mechanical pencil, a clip member for accommodating the storage case 60 in the user's pocket 100 is further provided. Since the case 60 can be used as a clip member when connecting the case 60 to a part of the mobile device, it is possible to prevent the storage case 60 from being accidentally dropped or misplaced. When used for such purpose, as shown in FIG. 14, an elastic clip member 85 slightly different in shape from the elastic clip member 85 shown in FIG. 12 is used.

In this embodiment, in order to support the magnetic disk cartridge 1 in the storage case 60, the step 65 and the support 66, and the elastic clip member 85
It is needless to say that the effects can be obtained even when either one is used alone.

FIG. 15 is a perspective view schematically showing the structure of a storage case according to a second embodiment of the present invention together with a magnetic disk cartridge in a state where the cover member is opened with its lid member down.

In the present embodiment, the storage case 60
An annular magnet member 94 is attached to one side of the inner surface, for example, at a substantially central portion of the inner surface of the bottom plate of the case main body 61. In the storage case 60, the magnetic disk cartridge 1 is stored with the bottom surface side having the hole 7 that exposes the center core 11 to the outside facing the magnet member 94 at the center.

Since the center core 11 of the magnetic disk cartridge 1 has magnetic attraction as described above, when the storage case 60 is closed, the magnet member 94 approaches or contacts the center core 11 so that the center core 11 Is attracted and fixed to the magnet member 94. Therefore, even when the storage case 60 is subjected to vibration or impact during transportation or the like, the center core 1
Unnecessary rotation and movement of the magnetic disk 1 and the magnetic disk 10 are suppressed, and dust generation due to friction between the center core 11 and the magnetic disk 10 and the cartridge shell C and generation of errors due to scratches on the recording surface are prevented, thereby improving reliability. be able to.

Although the structure of this embodiment can be added to the first embodiment, the magnet member 94 provided in the storage case 60 is attached to the center core 11 of the magnetic disk cartridge 1. If the magnetic disk cartridge 1 is inadvertently removed from the storage case 60 while the magnetic disk 10 is being sucked, the magnetic disk 10 may rub against the inner wall of the cartridge shell C and damage the recording surface. Therefore, prior to removing the magnetic disk cartridge 1 from the storage case 60,
At least a part of the magnet member 94 is
It is preferable that the magnetic disk cartridge 1 is removed from the storage case 60 after the effective magnetic attraction force is reduced by separating the magnetic disk cartridge 1 from the storage case 60.

For this purpose, it is desirable that the magnet member 94 be moved from the outside of the storage case 60 to reduce the magnetic attraction force. However, as long as the sealing property of the storage case 60 is not effectively impaired. In order to facilitate the movement of the magnet member 94 from the outside of the storage case 60, the holding portion of the magnet member 94 in the storage case 60 may have a two-piece structure.

FIGS. 16A to 16C show that at least a part of the magnet member is removed from the center core 1 before the magnetic disk cartridge 1 is taken out of the storage case 60.
It is sectional drawing which shows the structure of the storage case 60 which can be separated from 1 and its operation | movement.

The storage case 60 is made of a polyolefin resin or the like and has flexibility. A flexible magnet member 95 such as a rubber magnet is attached to the case body 61 or the cover member 62. Have been. The magnetic disk cartridge 1 is held inside the storage case 60 by a holding member 93 as shown in FIG. In this case, when the lid member 62 is closed, the position of the magnet member 95 is such that the center core 11 is pushed up into the cartridge shell, so that at least a portion near the center core 11 of the flexible magnetic disk 10 does not contact the shell inner wall surface. It is set to such a position.

As shown in FIG. 16B, when one side of the case body 61 is opened by bending deformation of the flexible case body 61, a part of the magnet member 95 is separated from the center bar 11. Therefore, the magnetic disk cartridge 1 can be easily taken out of the storage case 60 because the attraction force of the magnet member 95 is reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view schematically showing a configuration of a storage case according to a first embodiment of the present invention together with a magnetic disk cartridge with a cover member opened.

FIG. 2 is a perspective view of the detailed structure of the magnetic disk cartridge shown in FIG. 1 when the magnetic head insertion window is closed by a shutter member, viewed from above.

3 is a perspective view of the magnetic disk cartridge of FIG. 2 viewed from a lower surface side with a magnetic head insertion window opened.

FIG. 4 is an exploded perspective view of the magnetic disk cartridge shown in FIGS. 1 and 2;

FIG. 5 is a plan view of a base plate of the magnetic disk cartridge shown in FIGS. 1 to 4;

FIG. 6 is a detailed internal view showing the storage case of FIG. 1 with its lid member fully opened.

FIG. 7 is an external view thereof.

8 (A) to 8 (D) are respectively a line AA, a line BB, a line CC and a line D-C in the case main body of FIG. 6;
Enlarged sectional view along line D

9 (A) to 9 (D) respectively show the A'-A 'line, B'-B' line, C'-C 'line and D'-D' line in the lid member of FIG. 6; Enlarged sectional view along

FIG. 10A is a cross-sectional view showing a fitted state of a part of the case main body shown in FIG. 8A and a part of the lid member shown in FIG. 9A, and FIG. 10B. Figure 8 of the case body
Sectional drawing which shows the fitting state of the part shown in FIG. 9 (B) and the part shown in FIG. 9 (B) of the lid member.

11 (A) is an enlarged plan view of a clip pivot block, FIG. 11 (B) is a cross-sectional view taken along line BB of FIG. 11 (A), and FIG. 11 (C) is an elastic clip. Enlarged plan view of the pivot pin of the member

12A is an enlarged plan view of an elastic clip member, and FIG. 12B is a side view thereof.

FIG. 13 is a sectional view showing a state in which the elastic clip locks the lid member at the closed position.

FIG. 14 is a schematic view showing another method of using the elastic clip member.

FIG. 15 is a perspective view schematically showing a configuration of a storage case according to a second embodiment of the present invention together with a magnetic disk cartridge with its lid member opened.

FIG. 16 is an explanatory diagram of a magnetic disk cartridge storage state in a modification of the embodiment shown in FIG. 15 and an operation when the magnetic disk cartridge is removed from the storage case;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Magnetic disk cartridge C cartridge shell 2 Base plate 3 Upper cover plate 4 Lower cover plate 5 Shutter member 10 Magnetic disk 11 Center core 25 Base plate corner 26, 28 Through hole 60 Storage case 61 Case main body 62 Cover member 63 Hinge 65 67 Circular step 66 Support 80 Clip support block 83 Clip support pin 85 Elastic clip member 94,95 Magnet member

Claims (1)

[Claims] 1. A storage case for a magnetic disk cartridge in which a disk-shaped magnetic disk is rotatably stored in a flat cartridge shell having through holes in at least two of the four corners. A step for supporting the cartridge shell in the thickness direction at at least three places on a surface thereof, and columns respectively inserted into through holes of the cartridge shell on at least a pair of surfaces of the steps. And one of the at least one pair of columns is fitted in the through hole to support the cartridge shell in the surface direction, and the remaining columns are loosely fitted in the through hole. Storage case.