JPH09272583A - Disk package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate reduction of, weight and thickness of a disk package, reduce a total cost, enable the package to be melted to another member by applying heat and pressure and allow a CD to be sold separately as a single disk package by using a hinge-coupled plate body by sheet molding as the disk package. SOLUTION: In comprising a disk package with a thermoplastic plastic sheet integrated with a hinge, a lower plate 1 and an upper plate 2 are connected across a hinge (h), wherein a positioning rib 3 along an outer periphery of a received disk and a stage 4 for supporting a lower face of the outer periphery of the disk inside the rib 3 are connected to the lower plate 1, while the upper plate 2 is formed with a groove 5 with which the rib 3 is to be engaged and a disk elastic face 6 respectively, while uneven engaging parts 7 for joining and maintaining the upper and lower plates are formed on opposite faces of the respective plates.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a disk package suitable as a storage case for a disk-shaped recording medium such as a magneto-optical disk or a CD / ROM disk.

[0002]

2. Description of the Related Art Disc packages of this type include:
Conventionally, for example, there is one described in Japanese Patent Publication No. 7-14743. This prior art has a rectangular sheet divided into two rows of a plurality of rectangular sections, the rows being separated by fold lines, and the plurality of sections in the first row having a width smaller than the width of the sections. Having a plurality of sections in a second row.
By separating the second row along the fold line, separated from each other by slots having a width slightly greater than the width of the strip, each of the sections of the second row is partially over the section of the first row. , Are not present on the strip adjacent to the first row section, the sections present above the first row section are joined together to form a segment, and A first row of compact disc holders having a recessed portion having a depth to which at least one compact disc fits and having a centrally located holder element for frictionally engaging a center hole circumference of the compact disc; The width of the divisions, strips and slots
A package for a compact disc, wherein the segment to which the compact disc holder is fixed is predetermined such that adjacent segments abut each other when the edge is folded along a fold line defining the strip.

[0003]

According to the above-mentioned prior art, a compact disk holder is formed with a recess having a depth to which at least one compact disk fits, and the center of the circumference of the center hole of the compact disk and the frictional engagement are formed at the center. A plastic injection molded plate provided with matching holder elements is used.

[0004] Such an injection-molded plate is generally heavier than a heat-evacuated thin sheet made of a single mold of a thermoplastic sheet, and requires two or more dies as a molding die. The first problem is that it is expensive in all aspects of the mold cost, molding machine cost, and molding labor, which is uneconomical.

[0005] Further, the injection molded plate cannot be attached to other members by high frequency heating welding like the above-mentioned sheet molded plate, and as shown in FIG.
Since the D holder plate must be bonded to an origami book sheet called a segment with an adhesive, workability is poor.
There is also a second problem that odor pollution easily occurs.

Further, since the outer surface of the CD mounted on the CD holder plate in this conventional example is in a bulged state, it is necessary to protect the outer surface with a segment and distribute the CD. There is also a third problem that cannot be performed.

According to the present invention, in order to eliminate the above-mentioned problems, a hinge-integrated plate-like member formed by sheet molding is used as a disk package, so that the package can be made lighter and the total cost can be reduced. It is an object of the present invention to enable the measurement and the welding to other members by heating and pressurizing, and to realize the sale of a single CD as a single disk package.

[0008]

SUMMARY OF THE INVENTION The above-mentioned object of the present invention is to construct a disc package in which a thermoplastic sheet is integrally molded with a hinge, in which a lower plate and an upper plate are connected with a hinge interposed therebetween. The lower plate is provided with a positioning rib along the outer circumference of the disk to be housed and a step portion supporting the lower surface of the outer circumference of the disk on the inner side thereof, and the upper plate is provided with a groove into which the rib engages and a disk. This can be achieved by forming a compression surface and forming concavo-convex engaging portions for maintaining contact between the upper and lower plates, respectively, on the opposing surfaces of the upper and lower plates.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, as shown in FIGS. 1 and 2, a basic form of the present invention is to form a thermoplastic resin sheet having a thickness of about 0.2 to 0.7 mm such as a PET resin or a vinyl chloride sheet. In forming the disk package integrally formed with the hinge, the hinge h by the circular curl portion is used.
A substantially square lower plate 1 and an upper plate 2 are arranged in series with the disk sandwiched therebetween, and the lower plate 1 has a storage disk d such as a CD / ROM disk.
Two arc-shaped positioning ribs 3 along the outer periphery of the disk d and a step portion 4 which is in contact with the inner side of the positioning rib 3 and which supports the outer peripheral lower surface portion of the outer surface of the disk d are continuously provided.

The upper plate 2 is provided with a groove 5 into which the rib 3 is loosely fitted and a pressure-reducing surface 6 for lightly contacting the upper surface of the disc to prevent the disc from moving, and the upper and lower plates. A known male and female fitting type concave-convex engaging portion 7 for maintaining the closed state by keeping the plates in contact with each other is formed on the facing surfaces of the reference numerals 1 and 2 to form the disc package according to the present invention.

Then, if necessary, as shown in FIG.
Heat-press welding by a well-known means such as a high-frequency welder to the inner surface of the book sheet B in which the peripheral portion of the heat-fusible resin film m is coated on the inner surface is distributed, sold and used as a book-style disk package. You may make it.

As shown in FIG. 4, the concave / convex engaging portion 7 is formed so that the vicinity of the opening edge of the concave portion is slightly narrow, and the tip of the convex portion is slightly wide so-called overhang. After pressurized or vacuum-drawn, the mold is removed by forcible peeling while being bent using preheating.

Therefore, when the disk package of the present invention having the above configuration is used, when the lid is opened as shown in FIG.
After being placed as shown in FIG. 3, the concave / convex engagement portions 7, 7 as shown in FIG.
As shown in FIGS. 1 and 5, it is possible to press-fit and maintain the lid closed while bending it against the elasticity inherent to the material. As shown in FIG. To serve.

In order to open the lid so that the final user or the like can take out the contents, as shown in FIG. 7, the fingers 8 at the corners of the upper and lower plates are sandwiched between fingers and separated from each other in the direction indicated by the arrow in FIG. By doing so, the engaged concavo-convex engagement portions 7, 7 can be pulled apart as shown in FIG. 3 while bending against the elasticity, and the upper plate 2 can be opened from the hinge h with respect to the lower plate 1. .

[0015]

EXAMPLE By forming a small projection 8a in the vicinity of the finger-holding margin 8 that partially widens the upper and lower plates at the corners as shown in FIGS. It can be easily turned over from the fingertip cost 8.

[0016]

As described above, the present invention has the following advantages. The lower plate 1 according to the present invention is provided with a positioning rib 3 along the outer circumference of the disk d to be housed and a step portion 4 for supporting the lower surface of the outer circumference of the disk d, which is connected to the inner side of the positioning rib 3. Since the groove 5 into which the rib 3 engages and the disk elastic surface 6 are respectively formed, and the concavo-convex engaging portion 7 for maintaining the contact between the upper and lower plates is formed on the opposing surfaces of the upper and lower plates. Compared with the conventional example,
The package can be made thinner and lighter, the total cost can be reduced, and it can be welded to other members by heating and pressing, which can greatly improve the manufacturing efficiency and protect both sides of the disc with upper and lower plates. As a result, the CD of the present invention can be sold as a single item, and the distribution system can be simplified.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a disk package according to the present invention.

FIG. 2 is a perspective view showing an example of a disk package according to the present invention.

FIG. 3 is a longitudinal side view showing an example of use of a disk package according to the present invention.

FIG. 4 is an enlarged longitudinal side view of a main part of the disk package according to the present invention in the course of closing the lid;

FIG. 5 is an enlarged longitudinal sectional side view of a main part of the disk package according to the present invention after the lid is closed.

FIG. 6 is a perspective view showing a display example of a disk package according to the present invention.

FIG. 7 is an enlarged longitudinal sectional side view of a main part of the disk package according to the present invention in the middle of opening.

[Explanation of symbols]

 1 Lower Plate 2 Upper Plate 3 Rib 4 Step 5 Groove 6 Repression Surface 7 Concavo-convex Engagement h Hinge d Disc

Claims (1)

[Claims] 1. A disk package integrally formed of a thermoplastic sheet and a hinge, wherein a lower plate 1 and an upper plate 2 are connected to each other with a hinge h interposed therebetween, and the lower plate 1 is provided on the outer periphery of a storage disk d. A positioning rib 3 is provided along with a step portion 4 that supports the outer peripheral lower surface portion of the disc d, and the upper plate 2 is provided with a groove 5 into which the rib 3 is fitted and a disc elastic surface 6. A disk package in which concave and convex engaging portions 7 for respectively maintaining the plates are formed on the opposing surfaces of the upper and lower plates, respectively.