JP2847689B2 - Compact disc storage 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 compact disk storage case.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 4, covers 2 are rotatably opened and closed on both sides of a base 1 made of resin, and a compact disc is provided between both sides of the base 1 and each cover 2. A compact disc storage case for two discs, each of which is capable of detachably storing the disc 3, is known. In this kind of compact disk storage case, the cross section of the base 1 with the substrate 4 is approximately T
The side walls 5 are formed integrally so as to form a V-shape, and the cover 2 is sandwiched by these side walls 5 to lock the cover 2 in a closed state. Both surfaces were flat, and the thickness of the substrate portion 4 was entirely uniform including the position along the side wall 5.

[0003]

In the above-mentioned conventional compact disk storage case, a substrate portion 4 having a uniform thickness is provided.
Side walls 5 are integrally formed on both side edges of the base portion 4 so as to form a substantially T-shaped cross section with the substrate portion 4. Therefore, when the base 1 is formed of resin, the side walls 5 are integrally connected to the substrate portion 4. Because the thickness of 5 is substantially increased,
Sink 6 at a position corresponding to substrate portion 4 on the outer surface of side wall 5;
And the appearance of the storage case is impaired. Further, when the recording surface is turned down when the compact disk 3 is stored, that is, when the compact disk 3 is opposed to the substrate 4, there is another problem that the recording surface is easily damaged. SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and to provide a compact disc storage case that can prevent sink marks from occurring at a position corresponding to a substrate portion on an outer surface of a side wall of a base and can protect a recording surface of a compact disc. Aim.

[0004]

In order to achieve the above object, a compact disk storage case according to the present invention comprises a base made of resin, and a cover provided to be openable and closable with respect to the base. In a compact disk storage case in which a compact disk is removably stored between the cover and the cover, the base includes a substrate portion having a disk holding portion which is detachably engaged with a center hole of the compact disk, and A side wall integrally and vertically formed on a side edge of the substrate portion, wherein a surface of the substrate portion facing the compact disk is formed in an inclined shape so as to become gradually thinner from the disk holding portion toward the outer periphery. It is.

[0005]

According to the above construction, when the base is formed of resin, the base portion of the base becomes thinner as it approaches the side wall, so that sink marks are prevented from being formed at positions corresponding to the substrate portion on the outer surface of the side wall. Also, compact discs are
By engaging the disc holding portion at the center of the base portion of the base with the center hole, the base portion is held on the base portion, but when the recording surface of the compact disc is held facing the base portion, the Since the surface facing the compact disk is formed so as to be inclined from the pedestal portion of the disk holding portion toward the outer periphery, the recording surface of the compact disk is protected without contacting the substrate portion.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. FIGS. 1 to 3 show an embodiment of the present invention. In these figures, reference numeral 11 denotes a disc-shaped compact disc, and this compact disc 11 has a center hole 12. FIG. In addition, 15 is a compact disc storage case for two discs, and this storage case 15 has a base 16 and
It consists of a pair of covers 17 supported on both sides (upper and lower surfaces in the figure) of the base 16 so as to be rotatable and openable, respectively.
The compact disks 11 are removably housed between both sides of the base 16 and each cover 17.
The base 16 is integrally formed of resin, and has a substantially rectangular plate-like substrate portion 21 positioned in parallel with the compact disk 11 housed therein, and side walls formed on both left and right side edges of the substrate portion 21, respectively. It consists of 22. These side walls 22 are formed in both directions (upward and downward in the drawing) orthogonal to the substrate 21 and have a substantially T-shaped cross section with the substrate 21. And the base 16
At the center of the substrate portion 21, a disk holding portion 23 is formed to protrude from both sides of the substrate portion 21 to hold the compact disk 11 in a detachable manner. These disc holding portions 23 are composed of a plurality of claw portions 23a radially located and elastically deformable in a radial direction thereof, and a circular pedestal portion 23b formed integrally with the claw portions 23a, and are compact. It engages with the center hole 12 of the disc 11 in a detachable manner. Further, finger insertion holes 24 are formed at four corners of the substrate portion 21, respectively. Further, both front and rear side edges of the substrate portion 21 are formed as protruding portions 25 protruding in opposite directions, and a concave portion 26 is formed on an outer surface of the protruding portion 25. At the same time, engagement receiving portions 27 are respectively formed on the inner surfaces of the side walls 22 so as to correspond to the two protruding edge portions 25, respectively.
The substrate section 21 has a pedestal section 23b of the disc holding section 23 on both sides facing the compact disc 11.
From the center to the outer periphery, whereby the thickness gradually decreases from the center to the outer periphery. Each of the covers 17 has one end edge pivotally attached to an end of the side wall 22 of the base 16 on the side of the protruding edge 25 by a support shaft 31, and is rotatable with the left-right direction as a rotation axis direction. The base 16 is openable and closable with respect to the base 16, and is sandwiched between the side walls 22 of the base 16 and locked in a closed state. That is, side walls 32 along the inner surfaces of the side walls 22 of the base 16 are formed on the left and right side edges of the cover 17 integrally formed of resin, respectively. Locking projections 33 are formed on the receiving portions 27 so as to freely engage and disengage.

Next, the operation of the above configuration will be described. The base 16 is integrally formed of resin.At this time, the substrate 21 is gradually thinned from the pedestal 23b of the disk holding part 23 toward the outer periphery, and the substrate 21 becomes thinner as approaching the side wall 22, so that During the production of the storage case, the amount of shrinkage at the side edge of the substrate 21 during resin cooling is reduced,
Therefore, sink marks are prevented from being formed at the position corresponding to the substrate portion 21 on the outer surface of the side wall 22 located at the side edge of the substrate portion 21.

When the cover 17 is opened in order to attach or detach the compact disk 11, for example,
With the left hand, the user grips both side walls with his left hand, puts his right finger on the free end of the cover 17 in the concave portion 26 of the base 16, and turns the cover 17 upward as shown by the arrow in FIG.
Then, the compact disc 11 is taken out with the cover 17 opened as described above. For this purpose, for example, a finger is inserted into the finger insertion hole 24 of the base 16 and the compact disc 11 is picked, and the disc holding portion of the base 16 is held. Remove the compact disk 11 while pressing 23. When the compact disc 11 is stored, the center hole 12 of the compact disc 11 may be pushed into the claw 23a of the disc holding section 23,
The compact disc 11 is held parallel to the base 21 of the base 16 by the engagement between the center hole 12 and the claw 23a of the disc holding part 23. By the way, at this time, when the recording surface 11a of the compact disc 11 is held facing the substrate 21,
The compact disk 11 is inclined so that the surface facing the compact disk 11 gradually becomes thinner from the pedestal portion 23b of the disk holding portion 23 toward the outer periphery. The recording surface 11a of the compact disc 11 is
Do not touch 21. On the other hand, when the cover 17 is closed after the attachment / detachment of the compact disk 11 is completed, the closing cover 17 is again turned up and the side walls 22 are picked with the left hand.
Press down and turn the cover 17 so that the cover 17
22, the locking projections 33 of the cover 16 are engaged with the engagement receiving portions 27 of the side walls 22, and the cover 17 is held in a closed state.

As described above, in the above embodiment, the outer surface of the side wall 22 is formed by forming both surfaces of the substrate portion 21 so as to be gradually thinner from the pedestal portion 23b of the disk holding portion 23 toward the outer periphery. At the position corresponding to the substrate portion 21 in FIG. Therefore, the appearance of the storage case is improved. At the same time, unlike the case where a concave portion is formed in the substrate
Since there are few irregularities on the 21, the appearance of the storage case with the cover 17 opened is not impaired. Further, even if the recording surface 11a of the compact disc 11 is opposed to the substrate portion 21 and the compact disc 11 is erroneously held in an inclined shape,
Since a does not contact the substrate 21, the recording surface 11a can be protected. In addition, the structure for preventing sink marks is not
It becomes the configuration for protection of 11a.

The present invention is not limited to the above embodiment, and various modifications can be made. For example, in the above-described embodiment, the description has been made by taking the compact disc storage case for two discs as an example, but a compact disc storage case for one disc can also be implemented. In this case, only the surface of the base portion of the base facing the compact disk may be inclined, and the other surface may be flat.

[0011]

According to the present invention, there is provided a compact disk having a resin base and a cover provided to be openable and closable with respect to the base, wherein a compact disk is detachably stored between the base and the cover. In the storage case,
A base portion having a disc holding portion at the center portion which is detachably engaged with a center hole of the compact disc;
A side wall integrally and vertically formed on a side edge of the substrate portion, and a surface of the substrate portion facing the compact disk is formed in an inclined shape so as to become gradually thinner from the disk holding portion toward the outer periphery. Therefore, it is possible to prevent sink marks from occurring at positions corresponding to the substrate portion on the outer surface of the side wall of the base during molding, not to impair the appearance of the storage case, and to hold the compact disk with the recording surface of the compact disk facing the substrate portion The recording surface of the compact disc does not come into contact with the substrate when held by the portion, and therefore, the recording surface of the compact disc can be protected. In addition, the configuration for preventing sink marks and the configuration for protecting the recording surface Can also be used, and a storage case without waste can be provided.

[Brief description of the drawings]

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

FIG. 2 is an enlarged sectional view taken along line AA of FIG.

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

FIG. 4 is a partially enlarged sectional view showing a conventional example.

[Explanation of symbols]

 11 Compact disc 12 Center hole 15 Compact disc storage case 16 Base 17 Cover 21 Board section 22 Side wall 23 Disc holding section

Claims (1)

(57) [Claims] 1. A compact disc storage case comprising: a resin base; and a cover provided to be openable and closable with respect to the base, wherein a compact disc is detachably stored between the base and the cover. The base has a substrate portion having a disk holding portion at a central portion which is detachably engaged with a center hole of the compact disk, and a side wall formed integrally and vertically to a side edge of the substrate portion, A compact disk storage case, wherein a surface of the substrate portion facing the compact disk is formed so as to be inclined so as to gradually become thinner from the disk holding portion toward the outer periphery.