JP3331618B2 - Disk cartridge case - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk cartridge case for accommodating a disk cartridge accommodating a recording disk such as an optical disk or a magneto-optical disk.

[0002]

2. Description of the Related Art Conventionally, a sleeve case is used as a case for storing a disk cartridge containing a recording disk or a tape cassette containing a tape reel around which a recording tape is wound.

The sleeve case is made of polypropylene (P
P) or a sheet material made of a synthetic resin such as polyethylene terephthalate (PET) is formed in a cylindrical shape, and an opening for inserting and removing a cartridge or the like is provided at one end. The disk cartridge and the like are inserted into and removed from the sleeve case through the opening.

[0004]

As described above, since the sleeve case is formed by bending a thin sheet material, it is not possible to form a sleeve case having sufficient rigidity.

If the case for accommodating the disk cartridge does not have sufficient rigidity, the disk cartridge cannot be reliably protected. When the sleeve cases are stacked in a state where the disk cartridges are stored, the sleeve cases may be deformed by the weight of the stored disk cartridges, which may cause deformation or damage to the stored disk cartridges.

Further, since the sleeve case does not hold the housed disk cartridge in the housed state, the sleeve case may come off due to vibration or impact. If the disk cartridge comes out of the sleeve case during transportation, it may be damaged due to a large impact.

Further, since the sleeve case is formed by bending a sheet material, the slit-shaped opening for inserting and removing the narrow disk cartridge is unstable and easily deformed. This makes it difficult to insert the disk cartridge.

Accordingly, the present invention has been proposed in view of the above-mentioned circumstances, and has sufficient rigidity to reliably protect a stored disk cartridge. An object of the present invention is to provide a disk cartridge case that can reliably hold a stored state and can easily perform a disk cartridge insertion operation.

[0009]

In order to solve the above problems and achieve the above object, a disk cartridge case according to the present invention is made of a synthetic resin and has a first member having a side wall and a top plate. And a bottom plate formed of a synthetic resin and having substantially the same shape as the top plate, and a side wall connected to the bottom plate. At least both side wall portions of the bottom plate are connected to the top plate. Sides facing each other
And the bottom plate is parallel to the top plate, and cooperates with the first member to form a slit-shaped opening on the front side. A second member which is disposed at an inner side of the slit-shaped opening and elastically engages with a concave portion formed on a side surface of the disk cartridge inserted between the first and second members. A stop member.

[0010]

When the disk cartridge is inserted through the slit-shaped opening formed on the front side, the disk cartridge case according to the present invention is locked by the locking member and the stored state is maintained.

[0011]

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

As shown in FIG. 1, the disk cartridge case according to the present invention is a case for storing a disk cartridge 101 in which a recording disk 117 such as an optical disk or a magneto-optical disk is stored in a cartridge body 102.

As shown in FIGS. 1 and 2, a disk cartridge 101 housed in a case according to the present invention has a cartridge body 102 formed by joining upper and lower halves 103 and 104 into a thin housing. A recording disk 117 rotatably stored in the cartridge body 102.

The recording disk 117 has a signal recording layer formed on the main surface of a disk substrate made of a synthetic resin material.
This recording disk 117 has a chucking hole 1 at the center.
The chucking reference surface portion 116 is provided on one surface side so as to surround the chucking hole 114. On the other surface side of the recording disk 117, a chucking plate 115 made of a metal material is attached so as to cover the chucking hole 114.

A pair of substantially rectangular recording / reproducing apertures is formed on both upper and lower main surfaces of a rectangular cartridge body 102 having one side length substantially corresponding to the diameter of the recording disk 117. Portions 106 and 107 are formed at positions facing each other.

Each of the recording / reproducing openings 106 and 107 for allowing a part of the recording disk 117 accommodated in the cartridge body 102 to face outward is opened and closed by a shutter member 105 slidably attached to the cartridge body 102. . The shutter member 105 is formed by bending a thin metal plate or the like so as to form a U-shaped cross section.
The cartridge body 102 is fitted so as to cover the cartridges 06 and 107, and the base end is slidably supported on one side of the cartridge body 102. This shutter member 1
When the disk cartridge 101 is inserted into the recording / reproducing apparatus with the direction indicated by the arrow A in FIG. 1 as the insertion direction, the disk cartridge 101 moves in the direction indicated by the arrow B in FIG.
Release 07.

FIG. 2 shows the cartridge main body 102.
As shown in FIG. 7, a circular chucking opening 108 is provided at the center of the lower main surface. The chucking opening 108 has a chucking hole 114, a chucking reference surface 116, and a chucking plate 115 provided in the recording disk 117 facing outward. A pair of positioning holes 11 for positioning and mounting the recording / reproducing apparatus on the lower main surface of the cartridge main body 102 are provided.
2,113 are provided.

Further, a pair of clamping concave portions 109 and 110 and a disk type identifying concave portion 111 are provided on the lower main surface of the cartridge main body 102. The clamping recesses 109 and 110 are provided on both front sides of the lower main surface of the cartridge body 102, respectively. These clamping recesses 109 and 110 are open on one side and the other side of the cartridge body 102. The disc type identification recess 111 is provided on the front side of the lower main surface of the cartridge body 102. This disc type identification recess 111 is open to the front end face of the cartridge body 102.

The disk cartridge case according to the present invention is, as shown in FIGS. 1, 3 to 7, a top plate member 1 which is a first member which is combined to form a case body.
And a bottom plate member 2 constituting a second member.

The top plate member 1 is formed by injection molding synthetic resin into a flat plate shape, and has a shape and size substantially corresponding to the shape and size of the main surface of the cartridge body 102.
a.

The synthetic resin material constituting the top plate member includes acrylic resin (polymethyl methacrylate or the like), A
Transparent materials such as BS resin, polycarbonate and polystyrene are used.

As shown in FIG. 8, the top plate member 1 has a pair of inner wall portions 11, 1 forming side members on both sides of a lower surface portion.
Two. These inner wall portions 11 and 12 are formed parallel to the side edges of the top plate portion 1a. Also, the top plate member 1
Has an inner rear wall 15 parallel to the rear edge of the top plate 1a on the rear side of the lower surface. Each of these inner wall portions 11,
The inner wall 12 and the inner rear wall 15 are formed integrally with the top plate 1a, and are connected to each other to form a U-shaped peripheral wall excluding the front side. Each of the inner wall portions 11 and 12 and the inner rear wall portion 15 have a height substantially equal to the thickness of the cartridge body 102. Further, each of the inner wall portions 11 and 12 and the inner rear wall portion 15 are located more than both side edges and the rear edge of the top plate 1a.
Each of the wall portions 11, 12, 15 is formed so as to be located on the inner side by an amount corresponding to the thickness of the wall portion.

As shown in FIG. 8, FIG. 9, FIG. 19 and FIG. 20, side engaging projections 13 and 14 are directed outward on the outer side surfaces of the inner wall portions 11 and 12, respectively. It is protruding. These side engaging ridges 13 and 14 are provided on each inner wall portion 1.
The front plates 1a and 12 are provided so as to extend in parallel with both side edges of the top plate 1a from the vicinity of the front end to the rear end. These side engaging ridges 1
3 and 14 are formed at positions slightly above the lower end portions of the inner wall portions 11 and 12, that is, on the side approaching the top plate portion 1a. Further, on the outside of the inner rear wall portion 15, that is, on the side surface on the rear side, a rear engaging ridge 16 is provided so as to project toward the rear side. The rear engaging ridge 16 is provided so as to extend from one side of the inner rear wall portion 15 to the other side in parallel with the rear edge of the top plate portion 1a. The rear engaging ridge 16 is formed slightly above the lower end of the inner rear wall portion 15, that is, on the side approaching the top plate portion 1a.

On the outer side surfaces of the inner wall portions 11 and 12, locking projections 23 and 24 are respectively provided so as to project outward. These locking projections 23, 24
Is provided on the front side of each of the inner wall portions 11 and 12 and at a position adjacent to the upper surface side of each of the side engaging ridges 13 and 14. These locking projections 23 and 24 are provided with the respective side engagement projections 1.
The front end surface is formed to be slightly perpendicular to the inner wall portions 11 and 12, and the rear end surface is inclined with respect to the inner wall portions 11 and 12. The shape is such that the amount of protrusion gradually decreases toward.

A pair of vertical grooves 39, 40 are provided at positions rearward of the outer side surfaces of the inner side walls 11, 12. These vertical grooves 39, 40 are formed in the respective inner wall portions 11, 1
2 from the base end side to the lower end side, that is, the top plate portion 1a
Is formed from the lower surface of the inner wall portions 11 and 12 to the vicinity of the lower end portions.

On the lower surface of the top plate 1a, a pair of side step portions 4 which are stepped bulging portions are provided at both side positions and a rear side position.
8, 49 and a rear step portion 50 are formed. These steps 48, 49, and 50 are formed with a slight swelling amount. When the disc cartridge 101 is inserted into the disc cartridge case, the disc cartridge 101 is moved to the central portion of the top plate 1a. This is to prevent sliding contact. An upper cutout 5 is formed at the front end of the top plate 1a. The upper cutout 5 is provided to expose the rear end portion of the disk cartridge 101 housed in the disk cartridge case to the outside.

On the other hand, the bottom plate member 2 is also formed in a flat plate shape by injection molding synthetic resin. As shown in FIGS. 6 and 8, a pair of outer wall portions 1 constituting side members are provided on both sides of the upper surface portion.
7 and 18. These outer wall portions 17 and 18
It is formed along the side edge of the bottom plate 2a. This bottom plate member 2 has an outer rear wall 19 parallel to the rear edge of the bottom plate 2a on the rear side of the upper surface. These outer walls 1
The 7, 18 and the outer rear wall portion 19 are formed integrally with the bottom plate portion 2a and are connected to each other to form a U-shaped peripheral wall excluding the front side. The outer wall portions 17 and 18 and the outer rear wall portion 19 are formed at a height substantially equal to the thickness of the cartridge body 102. The outer rear wall 19 is
It is formed along the rear edge of the bottom plate 2a.

The bottom plate member 2 is made of a material having good heat resistance such as heat-resistant ABS resin and polycarbonate.

Side engaging grooves 20 and 21 are formed on the inner side surfaces of the outer wall portions 17 and 18 of the bottom plate member 2 facing each other. The side engagement grooves 20 and 21 are formed in parallel with the upper surface of the bottom plate 2a from the vicinity of the front end of each of the outer wall portions 17 and 18 to the rear end side. These side engagement grooves 20, 21 are formed slightly above the base ends of the outer side walls 17, 18, ie, at positions slightly separated from the bottom plate 2a. A flange 2 forming a rear engagement groove is formed on the inside of the outer rear wall 19, that is, on the side surface on the front side.
2 protrudes toward the front side. The flange portion 22 is provided so as to extend from one side of the outer rear wall portion 19 to the other side and along the upper edge of the outer rear wall portion 19 in parallel with the upper surface of the bottom plate portion 2a. The lower side of the flange 22 and the bottom plate 2a constitute a rear engagement groove.

Locking recesses 25, 26 are formed on the inner side surfaces of the outer wall portions 17, 18, respectively. These locking recesses 25, 26 are provided with the respective locking projections 23, 2
In correspondence with 4, at the front side position of each outer wall portion 17, 18,
It is provided in communication with the upper side of each side engagement groove 20, 21. The locking recesses 25 and 26 are provided in the respective side engagement grooves 2.
It is formed slightly shallower than 0,21.

A concave portion 38 is formed on the upper edge of the outer side surface of each of the outer wall portions 17 and 18. These recesses 3
Numeral 8 is formed in steps from the front end to the rear end of each of the outer wall portions 17, 18 along the upper edge of each of the outer wall portions 17, 18. The upper side of these recesses 38 is open to the upper end side of each of the outer wall portions 17 and 18.

A pair of notches 41, 42 are provided on the rear side of the outer wall portions 17, 18 in correspondence with the vertical grooves 39, 40. These notches 41,
Reference numeral 42 is formed from the upper end of each of the outer wall portions 17 and 18 toward the base end.

A lower cutout 6 is formed at the front end of the bottom plate 2a. Lower cutout 6
Is for exposing the rear end portion of the disk cartridge 101 housed in the disk cartridge case to the outside.

On the bottom plate 2a, a pair of side steps 30, 31 which are step-like bulging parts are provided on both sides and a rear side position.
And a rear step portion 32 is formed. These steps 3
Numerals 0, 31, and 32 are formed so as to have a slight swelling amount. When the disk cartridge 101 is inserted into the disk cartridge case, the disk cartridge 101 slides on the center of the bottom plate 2a. It is for preventing.

On the rear step portion 32, an erroneous insertion preventing projection 29 is provided so as to protrude. This erroneous insertion prevention projection 29
Is formed at a position slightly deviated to one side from the center position of the rear portion of the bottom plate portion 2a, and is provided at a position corresponding to the disc identification recess of the disc cartridge 101.

A pair of rib-like reinforcing portions 27 and 28 are provided at both ends of the flange portion 22 so as to be connected to the flange portion 22. These reinforcing portions 27 and 28 are connected to the outer rear wall portion 19.
Are formed integrally on the inner surface of the base member 2 and are provided from the flange portion 22 to the bottom plate portion 2a. The lower side of each of the side engagement grooves 20 and 21 has
A plurality of reinforcing ribs 43 are provided from the side surfaces inside 0 and 21 to the bottom plate portion 2a.

Then, as shown in FIG. 11, the top plate member 1 and the bottom plate member 2 have the respective side engaging projections 13 and 14 engaged with the respective side engaging grooves 20 and 21, and FIG. As shown in the figure, the rear engagement ridge 16 is connected to each other by engaging the rear engagement groove between the flange portion 22 and the bottom plate portion 2a, that is, the rear engagement groove, thereby forming a case body. The connection between the top plate member 1 and the bottom plate member 2 is such that the top plate member 1 is positioned in front of the bottom plate member 2 and the rear end sides of the side engaging ridges 13 and 14 are connected to the respective side engaging grooves. 20 and 21, and then the top plate member 1 is moved to the rear side to slide the respective side engaging projections 13 and 14 in the respective side engaging grooves 20 and 21. Do. When the top plate member 1 slides the top plate portion 1a to a position opposed to the bottom plate portion 2a, the rear engagement ridge 16 is engaged with the rear engagement groove, and the locking projections 23 and 24 are locked. The recesses 25 and 26 are engaged. When the locking projections 23, 24 engage with the locking recesses 25, 26, the locking projections 23, 24 first move from the front end sides of the outer wall sections 17, 18 to the outer wall sections 17, 18. The outer wall portions 17 and 18 are pressed outward and slightly displaced flexibly. Then, when the outer wall portions 17 and 18 reach positions opposing the locking recesses 25 and 26, the outer wall portions 17 and 18 By returning to the initial state of 18, the engaging concave portions 25 and 26 are engaged.

The top plate member 1 and the bottom plate member 2 are engaged with each other on both sides and the rear end portion of the top plate portion 1a and the bottom plate portion 2a so as to be parallel to each other, and have a narrow insertion / removal front side. An opening for use. The opening for insertion and removal has a length substantially corresponding to the length of one side of the cartridge body 102 and is formed with a thickness substantially corresponding to the thickness of the cartridge body 102. At this time, each inner wall portion 11,
The lower ends of the inner wall 12 and the inner rear wall 15 are in contact with the upper surface of the bottom plate 2a. The upper ends of the outer wall portions 17, 18 and the outer rear wall portion 19 are in contact with the periphery of the lower surface of the top plate 1a.

Side grooves 7 and 8 are formed by the concave portions 37 and 38 formed on the upper end side of the outer side surfaces of the outer side walls 17 and 18 and the vicinity of both side edges of the top plate 1a. That is, as shown in FIG. 11, the upper end edges of the outer wall portions 17 and 18 are arranged on the respective side groove portions 7 and 14 with respect to the side edge portions of the top plate 1a.
8 is in contact with the position on the inner side by a distance corresponding to the depth of 8. These side grooves 7, 8 are formed from the front end to the rear end of the side surface of the disk cartridge case. On the rear side of the bottom of these side grooves 7 and 8, cutouts 41 and 42 provided in the outer walls 17 and 18 and vertical grooves 39 and 40 formed in the inner walls 11 and 12 are provided. Each of the configured bottomed holes is located.

Then, the inner side position of the slit-shaped opening formed on the front side of the case 51, that is, each member 1,
A pair of lock members 9 and 10 serving as locking members for locking the disk cartridge 101 inserted between these members 1 and 2 are disposed between the two members. These lock members 9 and 10 are integrally formed of a flexible and resilient material such as polyacetal (POM), and as shown in FIGS. 13 to 16, held portions 44 and 45 at both ends.
And an elastic arm portion 4 extending between the held portions 44 and 45.
6. Each of the held portions 44 and 45 is formed in a substantially columnar shape, and their axes are parallel to each other. The elastic arm 46 is formed in a curved arm shape extending between the peripheral side surfaces of the held portions 44 and 45. The elastic arm 46 is formed to be curved in a direction orthogonal to the axis of each of the held parts 44 and 45, and the apex of the bulge formed by this curve is equidistant from the held parts 44 and 45. It is located in. The bulging portion formed by the bending of the lock members 9 and 10 serves as a locking surface portion 47 for locking the disk cartridge 101.

The lock members 9 and 10 are mounted on a pair of lock member mounting portions 33 and 34 formed on the bottom plate member 2, respectively. These lock member attaching portions 33, 34
As shown in FIG. 17, is formed on the inner side of each of the outer side walls 17 and 18 opposite to each other, on the rear side of the outer side walls 17 and 18. Attach these lock members 3
Each of the holding projections 3 and 34 has a pair of front and rear holding projections 54 and 55. These holding projections 54 and 55 are provided inwardly from the lower portions of the outer wall portions 17 and 18, respectively, and are continuous with the bottom plate portion 2a. That is, the holding projections 54 and 55 are provided at the corners between the outer wall portions 17 and 18 and the bottom plate portion 2a. These holding projections 54, 55
The lock members 9 and 10 are formed to face each other with a distance substantially corresponding to the length of the lock members 9 and 10. These holding projections 54, 55
Has holding recesses 52 and 53 on opposite sides.
These holding recesses 52 and 53 are recesses opened to the upper side, and have an elliptical cross section whose major axis is in the front-rear direction.
Or it is a part of an oval. Lock members 9 and 10
Is held by the holding projections 54 and 55 by fitting the held portions 44 and 45 into the holding recesses 52 and 53.

The locking members 9 and 10 have the axes of the held portions 44 and 45 perpendicular to the bottom plate 2a, and the locking surface 47 faces the inside of the bottom plate 2a. That is, the curved arm portions 46 of the lock members 9 and 10 bulge inward from the bottom plate portion 2a. These locking members 9 and 10 are connected to the respective outer wall portions 17 and 1 of each curved arm portion 46.
8 so that it can be elastically displaced in the direction approaching the reference numeral 8. When the curved arm portion 46 is elastically displaced in this manner, the held portions 44 and 45 are moved in the front and rear directions in the holding recesses 52 and 53.

The inner wall portions 11 and 12 of the top plate member 1
The rear part is notched, and the rear part has a shorter hanging distance from the top plate part 1a than the central part and the front part by a length corresponding to the width of each lock member 9, 10. . That is, the inner wall portions 11 and 12 are configured so as not to abut against the lock members 9 and 10 held by the lock member holding portions 33 and 34, and the lock member holding portions of the lock members 9 and 10. It prevents falling off from above 33 and 34.

When the bottom plate member 2 is integrally formed by injection molding on the back side of the lock member attaching portions 33, 34, that is, on the rear side outside the outer wall portions 17, 18, So-called sink marks are likely to occur. In the sink, since the portion provided with the lock member attaching portions 33 and 34 is thicker than the other portions of the outer wall portions 17 and 18, the portions are inwardly formed in the cooling step during molding. Depressed to the side. In order to prevent the occurrence of such sink marks, the lock member mounting portions 3 of the outer wall portions 17 and 18 may be used.
The positions corresponding to 3 and 34 are provided with meat escape holes 35 and 36 and are hollow.

The disk cartridge case according to the present invention having the above-described structure is inserted into the disk cartridge 10.
1 is stored between the top plate 1a and the bottom plate 2a.
It is inserted in the direction of arrow A in FIG. 1 through the insertion opening. When the disc cartridge 101 is inserted into the disc cartridge case, the disc cartridge 101 slides on the upper and lower sides of the side step portions 30 and 31, so that the center portion of the top plate portion 1a and the bottom plate portion 2a. Is prevented from sliding.

When the front portion of the disk cartridge 101 reaches the rear side of the disk cartridge case, both side portions of the front portion of the cartridge main body 102 press the locking members 9, 10 against the locking surfaces 47, 47. Each curved arm portion 46, 46 is displaced in a direction to approach each outer wall portion 17, 18. The front end of the cartridge body 102 is connected to the inner side wall 15 of the disk cartridge case.
When the lock members 9 and 10 are inserted to a position where the lock members 9 and 10 are substantially in contact with each other, the lock members 9 and 10 are opposed to each other corresponding to the clamping recesses 110 and 109. At this time, each lock member 9, 10
The curved arm portions 46, 46 return to the initial state by elastic force and engage with the respective clamping recesses 110. In this way, each locking member 9, 10 is
, The cartridge body 102 is locked so as to be sandwiched from both sides, and the movement in the direction of coming out outward due to impact, vibration, or the like is restricted. At this time, the erroneous insertion prevention protrusion 29 is
01 is engaged in the disc type identification recess.

The disk cartridge 101 thus housed in the disk cartridge case is prevented from falling off the case and is protected by the members 1 and 2.

In order to take out the disk cartridge 101 housed in the disk cartridge case according to the present invention, a part facing the outside through the upper and lower cutouts 5 and 6 is gripped by fingers. When the pulling member is pulled to the rear side of the disk cartridge case, the lock members 9 and 1 are pulled out.
0 are pressed by both sides of the front portion of the cartridge body 102, and the curved arm portions 46, 4 are pressed.
6 is displaced in a direction to approach the respective outer wall portions 17 and 18, and the lock on the cartridge body 102 is released. At this time, the disk cartridge 101 can be taken out of the disk cartridge case through the slit-shaped opening. Here, when the disk cartridge 101 is further moved rearward, the lock members 9 and 10 return to the initial state, and the disk cartridge 101 is removed from the disk cartridge case.

The locking members used in the disk cartridge case according to the present invention are limited to the lock members 9 and 10 formed separately from the bottom plate member 2 as shown in the above embodiment. 21 and FIG. 22, the lock piece 6 formed integrally with the bottom plate member 2.
0 can also be used.

The lock pieces 60 are formed opposite to each other so as to form a pair on the rear side on the inner surface side of each of the outer wall portions 17 and 18. These lock pieces 60 are formed as substantially plate-like members extending in the front-rear direction, and are located below the outer wall portions 17 and 18. The lock pieces 60 are integrally formed with the front end side integrally with the outer wall portions 17 and 18 and formed with the rear end side as a free end. These lock pieces 60 can be elastically displaced in directions approaching the outer side walls 17 and 18 in the direction of arrow D in FIG. Each lock piece 6 is provided on the inner surface of each outer wall 17, 18.
Corresponding to 0, a concave portion 61 is formed so as not to hinder the elastic displacement of the lock pieces 60.

The middle portion of each of the lock pieces 60 is formed in a substantially trapezoidal shape so as to protrude toward the inside of the bottom plate portion 2a. An intermediate portion of the lock piece 60 is a locking portion that engages with each of the clamping recesses 110 and 109. When the disk cartridge 101 is inserted into the disk cartridge case,
Each of the lock pieces 60, 60 is elastically displaced by being pressed by both front sides of the cartridge main body 102, and returns to the initial state when the disk cartridge 101 is inserted to a predetermined position, so that the locking portions can be moved to the respective clamping recesses. Engage with 110 and 109. These lock pieces 60, 6
A value of 0 prevents the disc cartridge 101 from falling off the disc cartridge case due to vibration or impact of the disc cartridge 101 by engaging the locking portion with each of the clamping recesses 110 and 109.

The locking portion of the lock piece 60 has a front slope 62 opposite to the insertion direction of the disk cartridge 101 in the direction of arrow C in FIG. It is formed so as to have a gentler inclination than the rear side slope portion 63 along the side. This is because when the disk cartridge 101 is inserted into the disk cartridge case, the elastic displacement of the lock piece 60 by the cartridge body 102 is easily performed, and conversely,
This is to prevent the lock piece 60 from being easily elastically displaced when the disk cartridge 101 is removed from the disk cartridge case.

[0053]

As described above, when the disk cartridge is inserted through the slit-shaped opening formed on the front side, the disk cartridge case according to the present invention
Since the storage state is maintained by being locked by the locking member,
It is possible to prevent the disk cartridge from easily dropping out of the case and to ensure the protection.

Further, since the first and second members constituting the disk cartridge case which are combined with each other are formed by injection molding, sufficient strength can be guaranteed, and the stored disk cartridge can be reliably protected. be able to.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a disk cartridge case according to the present invention and a disk cartridge housed in the disk cartridge case.

FIG. 2 is a perspective view showing a lower surface side of the disk cartridge.

FIG. 3 is a plan view showing the disk cartridge case.

FIG. 4 is a rear view showing the disk cartridge case.

FIG. 5 is a bottom view showing the disk cartridge case.

FIG. 6 is a front view showing the disk cartridge case.

FIG. 7 is an exploded perspective view showing the disk cartridge case.

FIG. 8 is a perspective view of a top plate member forming the disk cartridge case as viewed from the bottom surface side.

FIG. 9 is a side view showing the top plate member.

FIG. 10 is a side view showing a bottom plate member constituting the disk cartridge case.

FIG. 11 is an enlarged cross-sectional view of a main part showing a state of engagement between the top plate member and the bottom plate member on the side.

FIG. 12 is an enlarged sectional view of a main part showing an engagement state of the top plate member and the bottom plate member on the rear side.

FIG. 13 is a perspective view of the lock member used for the disk cartridge case as viewed from the front side.

FIG. 14 is a perspective view of the lock member as seen from the rear side.

FIG. 15 is a plan view of the lock member.

FIG. 16 is a side view of the lock member.

FIG. 17 is a plan view showing a bottom plate member constituting the disk cartridge case.

FIG. 18 is a front view showing the bottom plate member.

FIG. 19 is a front view showing a top plate member constituting the disk cartridge case.

FIG. 20 is a bottom view showing the top plate member.

FIG. 21 is an enlarged perspective view of a main part showing another example of the lock member constituting the disk cartridge case.

FIG. 22 is an enlarged plan view of a main part showing the lock member shown in FIG. 21;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Top plate member, 1a Top plate part, 2 Bottom plate member, 2
a bottom plate portion, 9,10 lock member, 60 lock pieces, 101 disk cartridge

Claims (1)

(57) [Claims] 1. A formed of a synthetic resin, a first member having a side wall and a top plate, are formed by a synthetic resin, a bottom plate of the top plate portion and the substantially same shape, with the bottom plate portion Having a side wall portion provided,
At least both side wall portions of the bottom plate portion are laterally opposed to both side wall portions of the top plate portion, and are joined by uneven engagement between the ridge and the groove, and the bottom plate portion is not parallel to the top plate portion. A second member forming a slit-shaped opening in the front side in cooperation with the first member, and a first member and a second member provided at positions inward of the slit-shaped opening. A disk cartridge case, comprising: a locking member elastically locked in a concave portion formed on a side surface of the disk cartridge inserted therebetween.