JP3602979B2 - Disk storage case and its mold - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a disk storage case for storing a disk-shaped medium, in particular, a disk-shaped medium such as a CD (compact disk) not stored in a cartridge, and a mold for molding the same.
[0002]
[Prior art]
Among conventional disk-shaped media, those which are not housed in a cartridge or the like, and which are mounted alone in an information recording / reproducing apparatus, include some data recorded in advance, such as a CD or a CD-ROM. Other than those that can be recorded, a recordable CD (CD-R, CD-RW, etc.) may be mentioned.
When these disk-shaped media are stored, they are stored in some case. For example, the disk-shaped media may be stored in a storage case called a dual case (Japanese Utility Model Publication No. 5-1014).
[0003]
However, in the dual case, since the disk-shaped media are stored one by one, there is a problem that when storing a large number of media, the thickness becomes large, which is inconvenient for storage and the cost of the case is increased.
Therefore, as a disk storage case for storing a large number of disk-shaped media, a substantially box-shaped disk storage case including a main body and a lid is known.
An example of this type of disk storage case is the one described in Japanese Utility Model Laid-Open No. 5-44882. In this disk storage case, by providing an inclined wall inside the main body, a large number of stored disk-shaped media can be easily turned over, and searchability of the disk-shaped media is improved.
[0004]
[Problems to be solved by the invention]
However, in the disk storage case disclosed in Japanese Utility Model Application Laid-Open No. 5-44882, a concave portion needs to be formed on the back surface side of the main body in order to provide the inclined wall. In addition, the space between the inclined wall and the front wall of the main body can be used as a standby pocket, but when a disc-shaped medium is stored in the pocket, the space between the inclined wall of the main body and the rear wall can be obtained. Since the disk-shaped medium protrudes upward from the storage, the lid cannot be closed when the disk-shaped medium is stored in the pocket. On the other hand, if the depth of the main body is increased so that the lid can be closed while the disk-shaped medium is stored in the pocket portion, the disk storage case becomes large, and the inclined wall and the rear wall of the main body are connected to each other. Since the upper part of the disk-shaped medium stored between the two is surrounded by the side wall of the main body, there is a problem that searchability is deteriorated.
[0005]
Therefore, an object to be solved by the present invention is to be able to store a large number of disk-shaped media and to improve the searchability of the stored disk-shaped media without increasing the size.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention according to claim 1 provides a disk-shaped medium storage main body having a front wall, a rear wall, and a side wall erected from a bottom wall, and a lid body openably and closably mounted on an upper portion of the main body. A disk storage case comprising: a partition wall erected on the bottom wall of the main body, the partition wall and the front wall of the main body are inclined forward, and the inclination angle of the front wall is It is characterized in that it is made larger than the inclination angle of the partition wall.
According to a second aspect of the present invention, in the disk storage case according to the first aspect, the height of the partition wall of the main body is higher than a radius of a disk medium to be stored.
[0007]
According to a third aspect of the present invention (a molding die for a disk storage case), there is provided a fixed die having a concave portion and a movable die having a convex portion for molding the disk storage case according to the first or second aspect. And forming a portion serving as the partition wall of the main body on the convex portion of the moving mold, and making a height direction of the portion serving as the partition wall coincide with a moving direction of the moving mold. It is characterized by.
[0008]
[Action]
According to the first aspect of the present invention, since the partition wall of the main body is inclined forward, the disk-shaped medium stored between the partition wall of the main body and the rear wall can be easily turned over, and searchability can be improved. Furthermore, molding can be performed using a molding die having a simple structure.
According to the second aspect of the present invention, when the stored disk-shaped medium is received by the partition wall, the disk-shaped medium can be received in a wider area, so that the disk-shaped medium can be hardly damaged.
Furthermore, in the invention of claim 3, since a portion serving as a partition wall of the main body is formed in the movable mold and the height direction thereof is made coincident with the moving direction of the movable mold, it is not necessary to use a slide core or the like. The main body of the disk storage case can be formed using only the fixed mold and the movable mold.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings and the like. FIG. 1 is an external perspective view showing one embodiment of a disk storage case according to the present invention, and shows a state where a lid is partially opened.
The disk storage case 10 includes a disk-shaped medium storage main body 20 for storing a disk-shaped medium, and a lid 30 attached to the upper part of the main body 20 so as to be openable and closable (rotatable).
2 to 4 are views showing the main body 20, FIG. 2 is a perspective view, FIG. 3 is a plan view showing the inner surface side, and FIG. 4 is a cross-sectional view showing an AA cross section in FIG.
[0010]
2 to 4, the main body 20 has a substantially rectangular bottom wall 21, and a front wall 22, a rear wall 25, and side walls 23 and 24 are respectively erected at four outer edges of the bottom wall 21. It is formed in a box shape. The height of the rear wall 25 (the length to the upper end surface) is formed higher than the height of the front wall 22 with reference to the bottom wall 21. Furthermore, step portions 23a and 24a extending in the vertical direction are formed at substantially the center positions on the inner surface side of the side walls 23 and 24, and accordingly, the outer surface side of the side walls 23 and 24 is near the upper end near the rear wall 25. Are formed with step portions 23b and 24b whose outer surfaces are lowered one step. A hollow cylindrical support shaft 26 is erected in each of the steps 23b and 24b. The support shaft 26 is for mounting the lid 30.
In addition, a partition wall 27 is provided upright at a substantially central portion of the bottom wall 21 so as to extend toward the side walls 23 and 24.
[0011]
The side walls 23 and 24 and the rear wall 25 of the main body 20 are erected substantially perpendicularly to the bottom wall 21. Strictly speaking, it is inclined outward by about 1 to 3 degrees in consideration of the draft of the mold during molding.
On the other hand, the front wall 22 and the partition wall 27 are provided so as to be inclined forward. The reason why the partition wall 27 is inclined in this way is that when about 20 disc-shaped media (for example, CD-R) are stored, the disc-shaped media can be easily turned over, and a plurality of stored disc-shaped media can be used. This is to improve the searchability when searching for a desired disk-shaped medium. In the present embodiment, as shown in FIG. 4, the inclination angle of the partition wall 27 is, for example, about 5 degrees, but the optimal inclination angle is determined by the number and size of the disk-shaped media to be stored. Further, the height of the partition wall 27 varies depending on the disk medium to be stored, but in the present embodiment, the height of the partition wall 27 is lower than that of the front wall 22 by about 20 to 40 mm.
[0012]
For example, when the disk medium to be stored is a CD-R as described above, it is necessary to take care not to damage the information recording surface of the disk medium more than a CD-ROM or the like. In this case, since it is desirable that the area for receiving the information recording surface of the disk-shaped medium is large, the height of the partition wall 27 is slightly longer than the radius (about 6 cm) of the disk-shaped medium. Similarly, the width of the partition wall 27 is also set to about 80% of the outer diameter (about 12 cm) of the disk-shaped medium.
[0013]
The front wall 22 is inclined forward by about 7 degrees, that is, has an inclination angle larger than the partition wall 27 by about 2 degrees. This is done for the reason of the molding die, as described later.
[0014]
5 and 6 are views showing the lid 30, FIG. 5 is a plan view showing the inner surface side, and FIG. 6 is a cross-sectional view showing a BB cross section of FIG.
The lid body 30 is formed in a substantially box shape in which a front wall 32, a rear wall 35, and side walls 33 and 34 are respectively erected at four sides of a substantially rectangular top wall 31 and only the lower side is opened. I have. In the vicinity of the rear wall 35 side of the side walls 33 and 34, protruding portions 33a and 34a protruding in an arc shape are formed, and circular holes 33b and 34b are formed substantially in the center of the protruding portions 33a and 34a. . These holes 33b and 34b are fitted into the support shaft 26 on the main body 20 side.
[0015]
When attaching the lid 30 to the main body 20, the support shaft 26 of the main body 20 may be fitted into the holes 33 b and 34 b of the lid 30. Here, the length between the inner surfaces of the side walls 33 and 34 of the lid 30 is formed slightly longer than the length between the outer surfaces of the step portions 23b and 24b formed on the side walls 23 and 24 of the main body 20, respectively. I have. Then, the protrusions 33a, 34a of the side walls 33, 34 of the lid 30 are elastically bent outward, so that the protrusions 33a, 34a pass over the support shaft 26 of the main body 20, and the holes 33b, 34b are supported by the support shafts. It enters the part 26. After this fitting, the protruding portions 33a, 34a of the lid 30 overlap the step portions 23b, 24b formed on the side walls 23, 24 of the main body 20, and these protruding portions 33a, 34 and the side walls 23, 24 of the main body 20. Are substantially flush with the outer surface. Then, the lid 30 is rotatable (openable and closable) about the support shaft 26 of the main body 20.
[0016]
When the lid 30 is closed, the bottom wall 21 of the main body 20 and the top wall 31 of the lid 30 are arranged so as to be substantially parallel to each other, and the front wall 32 of the lid 30 and the front sides of the side walls 33 and 34. The portion and the lower edge of the rear wall 35 are adjacent to the upper edge of the front wall 22, the side walls 23 and 24, and the upper edge of the rear wall 25 of the main body 20, respectively.
[0017]
FIG. 7 is a perspective view showing the disk-shaped medium D stored in the disk storage case 10, and FIG. 8 is a side sectional view showing a state where a plurality of the disk-shaped media D are stored in the disk storage case 10. is there.
The disk-shaped medium D is stored in the bag 1 as shown in FIG. 7, and is stored in the space between the partition wall 27 and the rear wall 25 of the main body 20.
The space between the front wall 21 and the partition wall 27 of the main body 20 is, for example, a portion for storing a label or other small items to be attached to the disk-shaped medium D. May be. Even when the disk-shaped medium D is stored in this portion, the lid 30 can be closed.
[0018]
FIG. 9 is a sectional view showing a molding die of the main body 20. The molding die 100 includes an upper fixed die 101 and a lower movable die 102 that can move in the vertical direction, and is not provided with a slide core or the like. In the figure, portions (voids) forming the side wall 21, the front wall 22, the rear wall 25, and the partition wall 27 of the main body 20 are indicated by 21 ', 22', 25 ', and 27', respectively.
[0019]
On the stationary mold 101 side, a portion for forming the outer surface side of the main body 20 is provided in a concave shape. Further, a portion for forming the inner surface side of the main body 20 is provided in a convex shape on the movable mold 102 side. The movable mold 102 is provided with a portion 27 ′ that becomes the partition wall 27 of the main body 20 substantially vertically. That is, the height direction of the portion 27 ′ serving as the partition wall 27 is made to coincide with the moving direction of the movable mold 102. Therefore, since the partition wall 27 is inclined by about 5 degrees with respect to the rear wall 25, the portion 25 'serving as the rear wall 25 of the main body 20 is approximately 5 ° with respect to the portion 27' serving as the partition wall 27. In addition, the portion 21 ′ serving as the bottom wall 21 is also formed so as to be inclined about 5 degrees with respect to the horizontal line. Further, a portion 22 ′ serving as the front wall 22 of the main body 20 is further inclined by about 2 degrees than a portion 27 ′ serving as the partition wall 27. By forming the molding die 100 in this way, there is no portion to be undercut, and it is not necessary to use a slide core or an inclined slide, so that the maintenance of the die is also improved without increasing the die cost. can do.
[0020]
【The invention's effect】
According to the first aspect of the present invention, it is possible to easily turn over the disk-shaped medium stored between the partition wall and the rear wall of the main body, and to improve searchability. Furthermore, molding can be performed using a molding die having a simple structure.
Further, according to the second aspect of the present invention, the stored disk-shaped medium is received over a wider area, so that the disk-shaped medium can be hardly damaged.
Still further, according to the third aspect of the present invention, the main body of the disk storage case can be formed only by the fixed die and the movable die without using a slide core or the like. The manufacturing cost can be reduced and the productivity of the disk storage case can be increased.
[Brief description of the drawings]
FIG. 1 is an external perspective view showing an embodiment of a disk storage case according to the present invention, showing a state in which a lid is partially opened.
FIG. 2 is a perspective view showing a main body.
FIG. 3 is a plan view showing an inner surface side of the main body.
FIG. 4 is a sectional view showing an AA section in FIG. 3;
FIG. 5 is a plan view showing the inner surface side of the lid.
FIG. 6 is a sectional view showing a BB section of FIG. 5;
FIG. 7 is a perspective view showing a disk-shaped medium stored in a disk storage case.
FIG. 8 is a side sectional view showing a state where a plurality of disk-shaped media are stored in a disk storage case.
FIG. 9 is a sectional view showing a molding die of the main body.
[Explanation of symbols]
1 bag 10 disk storage case 20 disk-shaped medium storage body 21 bottom wall 22 front wall 23, 24 side wall 25 rear wall 26 support shaft 27 partition wall 30 lid body 31 top wall 32 front wall 33, 34 side wall 33b, 34b hole 35 Rear wall 100 Molding die 101 Fixed die 102 Moving die D Disk-shaped medium

Claims (3)

A disk storage case including a disk-shaped medium storage main body having a front wall, a rear wall, and a side wall erected from a bottom wall, and a lid attached to the upper part of the main body so as to be openable and closable,
A partition wall is erected on the bottom wall of the main body, and the partition wall and the front wall of the main body are inclined forward, and the inclination angle of the front wall is made larger than the inclination angle of the partition wall. Features a disk storage case. The disk storage case according to claim 1,
A height of the partition wall of the main body is higher than a radius of a disk-shaped medium to be stored, wherein the disk storage case is provided. A fixed mold provided with a concave portion and a movable mold provided with a convex portion for molding the disk storage case according to claim 1 or 2,
A portion serving as the partition wall of the main body is formed in the convex portion of the moving mold, and a height direction of the portion serving as the partition wall coincides with a moving direction of the moving mold. Mold for disk storage case.

Images