JPH04352683A - Compact disk case - Google Patents

Abstract

PURPOSE:To prevent sink marks at the time of resin formation and make the opening and closing of a cover easy, while the cover is retained in an accurately closd position. CONSTITUTION:A compact disk 11 is retained between both the side faces of a base 16 and covered with a freely opening and closing cover 17. The base 16 is provided with side walls 22 at the opposite side edges of a base plate part 21 and the cover 17 is received between these side walls 22. Grooves 28 are formed at both the side edges of the base plate part 21 along the inside of the side wall 22. Therefore, these grooves 28 prevent the sink mark of the outer surface of the side wall 22. To open and close the cover 17, the lower parts of both the side walls 22 are pressed toward each other with the fingers, so that the upper parts of the side walls 22 are bent to the outside, whereby the cover 17 can be easily opened and closed.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compact disc storage case.

0002

2. Description of the Related Art Conventionally, as shown in FIG. 4, covers 2 are pivotally attached to both sides of a resin base 1 so as to be rotatable and openable, and compact discs are disposed between both sides of the base 1 and each cover 2. A compact disc storage case for two discs is known, in which two discs can be detachably stored. In this type of compact disc storage case, a cross section of approximately T
The side walls 5 are integrally formed to form a letter shape, and the cover 2 is sandwiched between the side walls 5 to lock the cover 2 in the closed state. The thickness was uniform throughout including the position along the side wall 5.

0003

[Problems to be Solved by the Invention] In the conventional compact disc storage case, the substrate portion 4 has a uniform thickness.
Since the side walls 5 are integrally formed on both side edges of the base 1 so as to form an approximately T-shaped cross section with the base 1, when the base 1 is molded from resin, the side walls are formed at the parts integrally connected to the base 1. Due to the fact that the wall thickness of 5 is substantially increased,
There was a problem in that a sink mark 6 was formed on the outer surface of the side wall 5 at a position corresponding to the substrate portion 4, and the appearance of the storage case was impaired. In addition, since the elasticity of the side wall 5 relative to the base plate 4 is insufficient, if the dimension between the side walls 5 is made small, it becomes difficult to open and close the cover 2. On the other hand, if the dimension between the side walls 5 is made large, it becomes difficult to hold the cover 2 in the closed state. There was also the problem of uncertainty. The present invention solves the above-mentioned problems and prevents sink marks from occurring at the position corresponding to the base plate on the outer surface of the side wall of the base, and also makes it possible to achieve both ease of opening and closing of the cover and reliability of cover retention. The purpose of the present invention is to provide a storage case for compact discs.

0004

[Means for Solving the Problems] In order to achieve the above object, the compact disc storage case of the present invention includes a base made of resin and a pair of covers provided on both sides of the base, respectively, so as to be openable and closable. , a compact disc storage case in which compact discs are removably stored between both sides of the base and each cover,
The base includes a base plate located parallel to the compact disc stored therein, and side walls that are formed integrally with both side edges of the base plate and extend in directions orthogonal to the base plate, sandwiching the covers. , recesses are formed at both side edges of the substrate portion along the inside of these side walls.

[0005]

[Function] With the above structure, when the base is molded with resin, since there are recesses on both side edges of the base plate along the inside of the side wall, sink marks occur at positions corresponding to the base on the outer surface of the side wall. is prevented. Also, when opening and closing the cover to insert or remove a compact disc,
For example, with the cover to be opened and closed facing up, use one hand to pick up the portion of both side walls below the base plate from the outside, and use the other hand to open and close the cover. When you pick it up, the parts of the side walls above the base plate, that is, the parts that sandwich the cover you are trying to open and close, bend outward, and when the cover is in the stored state, these parts firmly sandwich and lock the cover. You can easily open and close the cover even if the

[0006]

Embodiments Hereinafter, embodiments of the present invention will be explained in detail with reference to the accompanying drawings. 1 to 3 show an embodiment of the present invention, and in these figures, reference numeral 11 indicates a disk-shaped compact disk;
has a central hole 12. Reference numeral 15 denotes a compact disc storage case for two discs, and this storage case 15 consists of a base 16 and a pair of covers 17 supported on both sides (upper and lower sides in the figure) of the base 16 so as to be rotatable and openable. Both sides of the base 16 and each cover 17
A compact disc 11 is removably housed between the two. The base 16 is integrally molded from resin, and includes a substantially rectangular plate-shaped substrate portion 21 located parallel to the compact disc 11 housed therein, and side walls formed on the left and right edges of the substrate portion 21, respectively. It consists of 22. These side walls 22 are formed to face both directions (upward and downward directions in the drawing) orthogonal to the substrate portion 21.
Together with the substrate portion 21, it has a substantially T-shaped cross section. A disk holding section 23 is formed in the center of the substrate section 21 of the base 16 so as to protrude from both sides of the substrate section 21 and hold the compact disk 11 in a detachable manner. These disc holding parts 23 are comprised of a plurality of radially located claws that are elastically deformable in the radial direction, and are removably engaged with the center hole 12 of the compact disc 11. Further, finger holes 24 are formed in each of the four corners of the base plate portion 21 . Further, the front and rear edges of the substrate portion 21 are projecting edges 25 that protrude in opposite directions, and a recess 26 is formed on the outer surface of the projecting edges 25 . At the same time, engagement receiving portions 27 are formed on the inner surfaces of the both side walls 22 in correspondence with both the protruding edges 25, respectively. Further, grooves 28, which are recesses extending along the entire length inside the side wall 22, are formed on both side edges of the substrate portion 21. Each of the covers 17 has one end thereof connected to a support shaft 31 at the end of the base 16 on the projecting edge 25 side of both side walls 22.
It is pivotally connected to the base 16, and is rotatable with the left and right directions as rotation axis directions, and can be opened and closed with respect to the base 16, and is in a closed state when it is sandwiched between both side walls 22 of the base 16. It is something that is locked in place. That is, side walls 32 that follow the inner surfaces of both side walls 22 of the base 16 are formed on the left and right edges of the cover 17 integrally molded from resin, and the engagement of the base 16 is formed on the outer surfaces of these side walls 32. A locking protrusion 33 that releasably engages with the receiving portion 27 is formed, respectively.

[0007] Next, the operation of the above structure will be explained. The base 16 is integrally molded from resin, and in this case, grooves 28 formed at both side edges of the base plate 21 along the side walls 22 allow the amount of shrinkage at the side edges of the base plate 21 to be reduced when the resin is cooled. becomes smaller, so the side wall 22
This prevents sink marks from occurring at a position corresponding to the substrate portion 21 on the outer surface of the substrate.

When opening the cover 17 to attach or detach the compact disc 11, for example, with the open cover 17 facing upward, as shown by the chain line in FIG. 21 from the outside, place the fingers of your right hand on the free end of the cover 17 in the recess 26 of the base 16, and then remove the cover 1.
7 upwards as shown by the arrow in Figure 1 to open it. and,
In order to take out the compact disc 11 with the cover 17 open, for example, the base 1
Insert your finger into the finger hole 24 of 6 and insert the compact disc 11.
, and pull out the compact disc 11 while pushing the disc holder 23. Further, when storing the compact disc 11, the disc holding portion 23 may be pushed into the center hole 12 of the compact disc 11. on the other hand,
When closing the cover 17 after attaching and detaching the compact disc 11, with the cover 17 facing up, pinch both side walls 22 with the fingers 41 of your left hand. The locking protrusion 3 of the cover 16 is sandwiched by both side walls 22 of the cover 16.
3 engages with the engagement receiving portions 27 of both side walls 22, and the cover 1
7 is held closed. By the way, since the grooves 28 are provided, the side walls 22 tend to bend elastically with respect to the base plate 21, so when the side walls 22 are pinched as described above, both sides are bent as shown by the arrows in FIG. As the portion of the wall 22 below the base plate 21 is pushed inward, the upper portions of both side walls 22, that is, the portions sandwiching the cover 17 to be opened and closed, bend outward. As a result, even if the cover 17 is firmly held between the side walls 22 in the stored state, the cover 17 can be easily opened and closed. Further, as described above, the lower portions of both side walls 22 are pushed inward by fingers 41, but both side walls 22
Since the closed cover 17, which is not subject to opening and closing, is fitted between the lower portions of the side walls 22, the cover 17 itself prevents excessive deformation of the side wall 22. Therefore, there is no problem in terms of strength, and the base 16 will not be damaged.

As described above, in the embodiment, by forming the grooves 28 on both side edges of the substrate section 21 along the side wall 22, a shrinkage hole is formed at a position corresponding to the substrate section 21 on the outer surface of the side wall 22. can be prevented from occurring. Therefore, the appearance of the storage case 15 is improved. In addition, groove 2
8 is located inside the storage case 15, so it does not spoil its appearance. Along with this, the groove 28
By imparting appropriate elasticity to the side wall 22,
It becomes possible to achieve both ease of opening and closing of the cover 17 and reliability of holding the cover 17 in the closed state.

Note that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made. For example, in the above embodiment, grooves were formed continuously over the entire length of the side edges on both sides of the substrate part of the base as recesses to prevent sinking, but the grooves were formed only on one side of the substrate part. Alternatively, grooves may be provided intermittently rather than continuously along the side wall, or the recesses may be holes.

[0011]

Effects of the Invention The present invention comprises a base made of resin and a pair of covers which are provided on both sides of the base so as to be openable and closable, and between each cover and each side of the base, a compact disc is inserted. In a compact disc storage case that is detachably stored, the base includes a base plate located parallel to the stored compact disc;
Side walls are formed integrally with both sides of the base plate and in both directions perpendicular to the base plate and sandwich the covers, and recesses are formed on both sides of the base plate along the inside of these side walls. , it is possible to prevent sink marks from occurring on the outer surface of the side wall of the base at a position corresponding to the base plate during molding, and by increasing the elasticity of the side wall relative to the base, the cover can be opened and closed easily and the cover can be held more easily. It will be possible to achieve both reliability and certainty.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing one embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along line A-A in FIG. 1, with a portion enlarged.

FIG. 3 is an enlarged sectional view taken along line BB in FIG. 1;

FIG. 4 is a cross-sectional view showing a conventional example, with a portion enlarged.

[Explanation of symbols]

11 Compact disc 15 Compact disc storage case 16 Base 17 Cover 21　Base part 22 Side wall 28 Concave groove (concavity)

Claims (1)

[Claims] Claim 1: Comprising a resin base and a pair of covers provided on both sides of the base so as to be openable and closable, and compact discs are detachably stored between both sides of the base and each cover. In the compact disc storage case, the base is formed integrally with a base plate located parallel to the stored compact disc, and on both side edges of the base plate and oriented in both directions perpendicular to the base plate. and a side wall sandwiching the cover,
A compact disc storage case characterized in that concave portions are formed at both side edges of the substrate portion along the inside of these side walls.