JPH06219491A - Case for housing disk cartridge - Google Patents

Abstract

PURPOSE:To remove an adverse effect at the time of disk recording and reproducing and discomfort due to noise. CONSTITUTION:Positioning pieces 33,36 for holding corners of a disk case 8 are provided in a housing case 21 while a positioning boss 37 no be fitted into a center hole 39a when the disk case 8 is being held is provided. Thus the respective corners of the disk case are positioned by the positioning pieces 33,36 and also a disk 9 is positioned by the positioning boss 37, so that the disk 9 can be prevented from moving in a plane direction during transportation of the housing case 21 to have the disk 8 held in the disk case 8 and vibration of the disk case 9 can be suppressed to prevent generation of powder. In addition, suppressing the vibration of the disk 9 can also prevent generation of noise during transportation of the housing case 21 due no collision of the disk 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk cartridge housing case for housing and holding a disk cartridge having a disk as a recording medium when not in use.

[0002]

2. Description of the Related Art Generally, various information recording disks capable of recording information signals such as tone signals and video signals are stored and held in a disk case because they prevent dust and the like from coming in contact with fingers and the like. What is done is known.

The disk case of such a disk is stored, for example, in a storage case made of a relatively strong material when not in use.

Conventionally, as this type of storage case, a storage case for a disk cartridge as shown in FIGS. 13 and 14 has been proposed. This will be described with reference to the same figure. In the figure, a storage case 1 is provided with a case body 3 having a cartridge insertion / removal opening 2 and a transparent cover 4 for opening / closing the cartridge insertion / removal opening 2 of the case main body 3.
It is formed by a box made of synthetic resin.

The case body 3 of the storage case 1 is formed in the shape of a rectangular box whose one side (back side) of the peripheral wall is open.
The bottom surface is integrally provided with holding pieces 5a to 5d having L-shaped cross-sections for holding four corners of a disk case, which will be described later. These holding pieces 5a to 5d are configured to be elastically deformable by opening a part of the bottom surface of the case body 3.

On the other hand, the transparent cover 4 of the storage case 1
Is formed in a substantially plate shape having a pocket 6 into which a lyrics card or an index sheet can be inserted / removed.

Reference numeral 7 denotes a disk cartridge with a shutter, which has a disk case 8 having a spindle insertion hole 8a which opens inside and outside the disk case, and a central hole 9a which is rotatably held in the disk case 8 and opens on the front and back surfaces of the disk. A disc 9 as an information recording medium which has;
The disc 9 is provided with a dish-shaped magnetic plate 10 having a flange 10a facing the opening peripheral edge of the central hole 9a.

Reference numeral 11 is a rib for integrally supporting the disk, which is integrally provided on the peripheral edge of the opening of the spindle insertion hole 8a and faces the inside of the disk case 8.

Further, 12 and 13 are integrally formed on the disk 9 by a vibration applying device (not shown), and the flange 10 of the magnetic plate 10 is formed on the peripheral edge of the center hole 9a.
It is a projecting piece that faces through a.

In order to hold the disk cartridge 7 in the storage case 1 thus constructed, the four corners of the disk case 8 are positioned by the holding pieces 5a to 5d.

[0011]

By the way, in the storage case of this kind of disc cartridge, the disc case 8 has a function of positioning the disc case 8.
Therefore, the disk 9 in the disk case 8 is easily moved in the disk surface direction when the storage case 1 is transported, and the ribs 11 vibrate greatly as a fulcrum. As a result, there is a problem that powder is generated due to the contact between the outer peripheral edge of the disk 9 and the inner surface of the disk case 8, and the powder adheres to the disk 9 and adversely affects recording / reproduction. Also, storage case 1
There is also a problem that an abnormal noise is generated due to the contact between the disc case 8 and the disc 9 during the transportation of the disc, and the user is uncomfortable.

The present invention has been made in view of the above circumstances, and provides a disc cartridge which does not have an adverse effect on recording / reproducing on a disc and which prevents an abnormal noise from being generated when the case is transported to give an unpleasant feeling. It provides a storage case.

[0013]

DISCLOSURE OF THE INVENTION A storage case for a disk cartridge according to the present invention is a disk having a central hole opening on the front and back surfaces of the disk, and a magnetic plate provided on the disk so as to close the opening of the central hole. Is a storage box for a disk cartridge capable of holding the disk case inside the storage box, and a first positioning portion for holding a corner of the disk case is provided in the storage box, and is fitted into the center hole in the disk case holding state. The second positioning portion is provided.

A storage case for a disc cartridge according to another invention of the present invention is a disc having a center hole opened on the front and back surfaces of the disc and a magnetic plate provided on the disc so as to close the opening of the center hole. A storage box for a disc cartridge that can be held in a case,
A first positioning portion for holding a corner of the disc case is provided in the storage box, and a magnet for attracting the magnetic plate in the disc case holding state is provided.

[0015]

In the present invention, in order to house and hold the disk cartridge in the housing case, the corners of the disk case are positioned by the first positioning portion and the disk is positioned by the second positioning portion.

In another invention of the present invention, in order to house and hold the disk cartridge in the housing case, the corners of the disk case are positioned by the positioning portions and the disk is positioned by the magnet.

[0017]

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

FIG. 1 is a sectional view showing an embodiment of a storage case for a disk cartridge according to the present invention, FIG. 2 and FIG.
Are perspective views and exploded perspective views showing a state in which the storage case of the disc cartridge according to the present invention is opened, and FIGS.
FIG. 6 is a plan view, a sectional view and a rear view showing a case body of a storage case for a disc cartridge according to the present invention. In FIG. 6, the same reference numerals are given to the disc cartridge and each cartridge component shown in FIGS. 13 and 14. .

In FIG. 1, a storage case indicated by reference numeral 21 has a case body 22 having a cartridge insertion / removal opening 22a for storing and holding the disk cartridge 7 therein.
And a lid 23 that is rotatably provided on the case main body 22 and that opens and closes the cartridge insertion opening 22a,
The whole is made of a synthetic resin material.

The case body 22 of the storage case 21 is
A wall plate 24 having a U-shape in a plan view, which has two side wall parts 24a, 24b facing each other and a front wall part 24c connected to the front end parts of the both side wall parts 24a, 24b, and the wall plate 24 integrally. Bottom plate 25 that is formed and closes one side opening
It is composed of and.

Positioning projections 26 and 27 projecting in the same axial direction are integrally provided on the inner side surfaces of the side wall portions 24a and 24b of the wall plate 24 of the case main body 22, respectively.
An extension portion 30 having hinge protrusions 28 and 29, which project from each other and project in the same axial direction, at the rear end portion,
31 is integrally provided. Front wall portion 2 of this wall plate 24
A concave portion 32 for hooking a finger on the lid body 23 is formed at the upper edge of the central portion of 4c.

On the bottom plate 25 of the case body 22, four positioning pieces 33 to 36 for elastically holding the four corners of the disk case 8 and the positioning pieces 3 are provided.
Positioning bosses 37, which are located inside 3 to 36 and can be fitted into the central hole 9a of the disk 9 in the disk case holding state, are integrally provided.

Of these, the positioning pieces 33 to 36 are placed on the mounting portions 33a to 36a having a substantially L-shaped cross-section for mounting the corners of the disc case 8 and the mounting portions 33a to 36a. Of the four sides of the case 8, there are positioning portions 33b to 36b having two wall surfaces facing two sides which are adjacent to each other in the disc case positioning state, and elastically deformed by forming openings 25a to 25d in the bottom plate 25. It is formed by possible positioning pieces.

Further, the positioning boss 37 faces the inside of the spindle insertion hole 8a in the disc fitted state and contacts the one side opening edge of the center hole 9a.
It is formed by a cylindrical body having 7a.

On the other hand, the lid 23 of the storage case 21 is
For example, a flat plate 38 having a pocket 38a at the rear end thereof into which the index sheet S and the label L can be inserted / removed
And a transparent cover composed of two side walls 39, 40 integrally formed at the rear end portions of both side edges of the flat plate 38 and facing the both side wall portions 24a, 24b in the case closed state.

Outer surfaces of the pockets 38a of the flat plate 38 are provided with hinge recesses 41 and 42 into which the protrusions 28 and 29 can be fitted.

Further, on the outer peripheral surfaces of the side walls 39, 40, positioning recesses 43, for fitting the protrusions 26, 27,
44 is integrally provided.

In the storage case of the disc cartridge having the above structure, in order to store and hold the disc cartridge 7 in the storage case 21, the lid 23 is rotated in the opening direction and the cartridge insertion / removal opening 22a of the case main body 22.
After opening the
It is carried out by mounting on the mounting portions 33a to 36a of 3 to 36.

At this time, the positioning pieces 33 to 36 are elastically deformed and bent downward of the housing case 21, and the elastic biasing force holds the disk case 8 elastically for positioning.

Further, the positioning boss 37 has a spindle insertion hole 8a in the disk case 8 and a central hole 9 in the disk 9.
When the disk 9 faces the positioning boss 37,
It comes into contact with the guide inclined outer peripheral surface 37a and is positioned and held in the disk surface direction.

Therefore, in this embodiment, when the storage case 21 is transported, the surface movement of the disk 9 can be prevented and the disk 9 can be held by the rib 11 in the disk case 8, so that the vibration of the disk 9 is prevented. It is possible to prevent the generation of powder by suppressing the contact with the disk case 8.

Further, in the present embodiment, the vibration of the disk 9 can be suppressed within the range where it does not come into contact with the disk case 8, so that abnormal noise can be prevented from being generated when the storage case 21 is transported.

Further, in this embodiment, since the positioning boss 37 is formed with the guide inclined outer peripheral surface 37a,
The disc 9 can be positioned by the positioning boss 37 even if the dimensions of the storage case 21 vary slightly.

In this embodiment, the positioning boss 37 positions the disk 9 in the disk surface direction. However, the present invention is not limited to this, and the positioning boss 50 may be magnetized as shown in FIG. By providing the magnet 51 capable of attracting the plate 10, the disc 9 can be positioned not only in the disc surface direction but also in the axial direction. Further, it is not necessary to elastically deform the positioning pieces 52 to 55 (only part of which is shown) when positioning and holding the corners of the disk case 8.

In this case, the positioning boss 50 may be formed of a cylindrical body having the stepped inner peripheral surface 50a, and the magnet 51 may be fixed in the positioning boss 50 with the adhesive B, as shown in FIG. Alternatively, the magnet 51 may be caulked and fixed to the positioning boss 57 by the ultrasonic wave applying device 56, or as shown in FIG. 9, the plastic 58 containing the magnet is injected and fixed in the positioning boss 59 by the two-color molding method. May be.

Further, in this embodiment, the storage case 2
Although the disk 9 is held by the rib 11 when the disk cartridge 7 is housed and held in the disk 1,
According to the present invention, as shown in FIG. 10, as a second positioning portion, a positioning boss 60 having a stepped surface 60a that is in contact with the opening edge of the central hole 9a in a disc fitted state is stored in the storage case 2.
It may be provided in the 1 (case main body 22).

In this case, a protrusion 61 is provided in the disc case 8 at a position facing the rib 11, and the disc is held by the positioning boss 60 above the central position between the protrusion 61 and the rib 11 (a <b). By positioning the disc 9 in this state, rattling of the disc 9 in the disc case 8 can be reduced. Also, FIG.
As shown in FIG. 1, by holding the magnetic plate 10 by the positioning boss 70 so that the flange 10a contacts the protrusions 12 and 13 when the disk 9 is positioned, it is possible to prevent rattling of the magnetic plate 10. it can.

Besides, in the present embodiment, an example in which it is applied to a case for accommodating one disk cartridge 7 is shown, but the present invention is not limited to this, and
For example, by using a partition member and a rotary cover, the invention can be applied to a case that accommodates two or four disk cartridges 7 as in the embodiment.

Next, a storage case for a disk cartridge according to another invention of the present invention will be described with reference to FIG.

FIG. 12 is a cross-sectional view showing a storage case of a disk cartridge according to another invention of the present invention. In FIG. 12, the same or equivalent members as those in FIG. 7 are designated by the same reference numerals and detailed description thereof will be omitted. To do.

In the figure, reference numeral 81 is a cylindrical boss which is integrally formed in the housing case 21 and has a stepped surface 81a for mounting a magnet therein.

Reference numeral 82 denotes a disk-shaped magnet which is constructed so as to be able to attract the magnetic plate 10 when the disk case 8 is held by the positioning pieces 52 to 55 (only a part of which are shown).

Reference numeral 83 designates a disk supporting rib which is integrally formed in the disk case 8 and comes into contact with the non-recording area surface of the disk 9 in the disk case holding state.

In the storage case of the disc cartridge having the above-mentioned structure, the disc case 8 can be stored and held in the storage case 21.
The corners of the mounting portions 52a to 55a of the positioning pieces 52 to 55.
It is carried out by placing it on.

Therefore, in this embodiment, when the storage case 21 is transported, the surface movement of the disk 9 can be prevented and the disk 9 can be held by the ribs 83 in the disk case 8. It is possible to prevent the generation of powder by suppressing the contact with the disk case 8.

Further, in the present embodiment, the vibration of the disk 9 can be suppressed within the range where it does not come into contact with the disk case 8, so that the generation of abnormal noise during the transportation of the storage case 21 can be prevented.

Further, in this embodiment, the magnet 82 can position the disk 9 not only in the disk surface direction but also in the axial direction.

In addition, it is not necessary to elastically deform the positioning pieces 52 to 55 when positioning and holding the corners of the disk case 8.

The magnet 82 in another invention of the present invention may be attached to the housing case 21 by caulking and fixing by an ultrasonic wave applying device or by plastic containing a magnet, in addition to using an adhesive. Of course.

[0050]

As described above, according to the present invention, a disk having a central hole opened on the front and back surfaces of the disk and a magnetic plate provided on the disk so as to close the opening of the central hole are provided in the disk case. A storage box for a disc cartridge which can be held in the storage box, wherein a first positioning portion for holding a corner portion of the disc case is provided in the storage box, and a second positioning portion is fitted in the center hole in a disc case holding state. In order to store and hold the disc cartridge in the storage case, the corner portion of the disc case is positioned by the first positioning portion and the disc is positioned by the second positioning portion.

According to another aspect of the present invention, a disk having a central hole opening on the front and back surfaces of the disk and a magnetic plate provided on the disk so as to close the opening of the central hole can be held in the disk case. A storage box for a disc cartridge, in which a positioning portion for holding a corner of the disc case is provided in the storage box, and a magnet for attracting a magnetic plate in the disc case holding state is provided, so that the disc is stored in the storage case. To store and hold the cartridge, the corners of the disk case are positioned by the positioning portions, and the disk is positioned by the magnet.

Therefore, when the storage case is transported, the surface movement of the disk can be prevented and the disk can be held in the disk case. Therefore, the vibration of the disk is suppressed to a range where it does not contact the disk case, and powder is generated. Can be prevented, and there is no adverse effect at the time of recording / reproducing on the disc.

Further, since the vibration of the disc can be suppressed within the range where it does not come into contact with the disc case, it is possible to prevent the generation of abnormal noise during transportation of the storage case, so that the discomfort caused by the abnormal noise is not given.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a storage case for a disk cartridge according to the present invention.

FIG. 2 is a perspective view showing a state in which the storage case of the disc cartridge according to the present invention is also opened.

FIG. 3 is an exploded perspective view showing a state in which a storage case of the disc cartridge according to the present invention is opened.

FIG. 4 is a plan view showing a case body of a storage case for a disc cartridge according to the present invention.

FIG. 5 is a cross-sectional view showing a case body of a storage case for a disc cartridge according to the present invention.

FIG. 6 is a rear view showing the case main body of the storage case of the disc cartridge according to the present invention.

FIG. 7 is a sectional view showing another second embodiment of the storage case for the disk cartridge according to the present invention.

FIG. 8 is a sectional view showing another second mounting example of the magnet with respect to the storage case.

FIG. 9 is a cross-sectional view showing another third example of attaching the magnet to the storage case.

FIG. 10 is a sectional view showing another third embodiment of the storage case for the disk cartridge according to the present invention.

FIG. 11 is a cross-sectional view showing another example of holding the disc with respect to the positioning boss in the third embodiment.

FIG. 12 is a sectional view showing a storage case of a disc cartridge according to another invention of the present invention.

FIG. 13 is a perspective view showing a storage case of a conventional disc cartridge.

FIG. 14 is a sectional view showing a storage case of a conventional disk case.

[Explanation of symbols]

 7 ... Disk cartridge 8 ... Disk case 9 ... Disk 9a ... Center hole 10 ... Magnetic plate 21 ... Storage case 33, 36 ... Positioning piece 37 ... Positioning boss

Claims (3)

[Claims] 1. A disc cartridge storage box capable of holding a disc having a central hole opened on the front and back surfaces of the disc and a magnetic plate provided on the disc so as to close the opening of the central hole in a disc case. There is the first to hold the corner of the disk case in this storage box.
A storage case for a disc cartridge, wherein a positioning part is provided and a second positioning part is provided which fits in the center hole when the disc case is held. 2. The storage case for a disc cartridge according to claim 1, wherein a stepped surface which is in contact with the opening peripheral edge of the center hole in a disc-fitted state is provided in the second positioning portion. 3. A storage box for a disc cartridge, which is capable of holding a disc having a center hole opened on the front and back surfaces of the disc and a magnetic plate provided on the disc so as to close the opening of the center hole in a disc case. A storage case for a disc cartridge, wherein a positioning portion for holding a corner of the disc case is provided in the storage box, and a magnet for attracting the magnetic plate in a disc case holding state is provided.