JP3059624U - Recording media disk packaging container - Google Patents

Abstract

(57) [Summary] (with correction) [PROBLEMS] To provide a packaging container for recording medium disks that does not damage the recording surface of an optical disk or a magnetic disk and is easy to stack. SOLUTION: A plurality of protruding pieces, which are composed of a superposition table 1 having a central protruding shaft 2 for superposing and laminating recording medium disks and a cylindrical lid for covering the recording medium disks, and projecting horizontally on the outer periphery of the lower end of the cylindrical lid. In a recording medium disk packaging container provided with a horizontally protruding piece receiver 5 for fitting and locking a protruding piece by rotation of a cylindrical lid on the peripheral portion of the bottom plate 1a of the superimposing table, the bottom plate of the superimposing table is stored. A recording medium disk packaging container having a circular raised bottom 10 having a diameter equal to or slightly shorter than the diameter of the central non-recording surface of the recording medium disk. In addition, stacking is facilitated by providing an annular projection on the cylindrical lid and providing an annular rib fitted on the annular projection on the back surface of the bottom plate of the superimposition table.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a packaging container for a recording medium disk such as an optical disk and a magnetic disk.

[0002]

[Prior art]

 A recording medium such as an IC memory, a magnetic disk, or an optical disk is used as a medium for recording information described by electric signals. Among these recording media, optical disks and magnetic disks have a coating layer for recording information on the surface of a transparent plastic disk and are excellent in portability. These are discs such as CDs and DVDs in which the disc itself is bare, and discs such as FDs and MOs in which the disc is set in a plastic case. The former is commercially available in plastic packaging containers one by one, but for large users, packaging containers that store several to several tens of discs in a stack are convenient.

[0003] For example, Japanese Utility Model Laid-Open No. 61-74,586 discloses such a packaging container, which comprises a case bottom plate member and a case lid member, and a large number of sheets are provided on a shaft provided at the center of the case bottom plate member. A flat magnetic recording medium packaging container has been proposed in which the flat magnetic recording medium is inserted and laminated, and the flat magnetic recording medium is housed by covering the flat magnetic recording medium with a case lid member. The case bottom plate member and the case lid member are assembled by fitting the opening of the case lid member with the flange of the case bottom plate member. However, in order to prevent the case lid member from being detached, it was necessary to fix the packaged product with a rubber cord.

Further, Japanese Utility Model Laid-Open No. 4-84,189 discloses a magnetic recording medium packaging container provided with a superposition table having a central projecting shaft for superposing and stacking recording media and a cylindrical lid for covering the recording medium. A plurality of projecting pieces projecting in the horizontal direction on the outer periphery of the lower end of the cylindrical lid; A magnetic recording medium packaging container provided with a receiving piece has been proposed.

[0005] However, these conventional magnetic recording medium packaging containers are all packaging containers for transporting a large number of processed magnetic film products for FD in a superimposed manner, such as an optical disk having a bare recording surface. When used as a packaging container, the recording surface could be damaged by contact with the bottom plate, deteriorating the commercial value. For this reason, it is necessary to lay a cushion made of paper or foamed resin on the bottom plate, which is troublesome and expensive. In addition, these packaging containers had the problem that the back surface of the bottom plate was flat and slippery, and it was difficult to stack them.

[0006]

[Problems to be solved by the invention]

 Accordingly, an object of the present invention is to provide a packaging container for recording medium disks that does not damage the recording surface of a recording medium disk such as an optical disk and that can be easily stacked.

[0007]

[Means for Solving the Problems]

 That is, the present invention comprises a stacking table having a central projecting axis for superimposing and stacking recording medium disks and a cylindrical lid covering the recording medium disks, and a plurality of protrusions projecting horizontally on the outer periphery of the lower end of the cylindrical lid. The bottom plate of the superimposition table is housed in a recording medium disk packaging container provided with a horizontal protruding piece receiver that fits and locks the protruding piece by the rotation of the cylindrical lid on the periphery of the bottom plate of the superposition table. A recording medium disc packaging container characterized in that it has a circular raised bottom whose diameter is equal to or slightly shorter than the diameter of the central non-recording surface of the recording medium disc used.

In the above-mentioned recording medium disk packaging container, an annular projection is provided on a cylindrical lid, and an annular rib fitted to the annular projection is provided on a back surface of a bottom plate of a superimposing table to facilitate stacking. Is preferred.

[0009]

[Embodiment of the invention]

 Hereinafter, the recording medium disk packaging container of the present invention will be specifically described with reference to the drawings. The recording medium disk packaging container shown in the drawings is an example of the present invention, and the present invention is not limited to those shown in the drawings.

1 and 2 show a plan view and a bottom view of a superimposing table in the recording medium disk packaging container of the present invention, FIG. 3 shows a cross-sectional view taken along line AA of FIG. 1, and FIG. FIG. 2 is a sectional view taken along line BB of the protruding piece receiver 5 in FIG. FIG. 7 is an overall sectional view of the recording medium disk packaging container of the present invention.

At the center of the bottom plate 1 a of the superimposing table 1, there is provided a central protruding shaft 2 for superposing and laminating the recording medium disks 20. The bottom plate 1a includes a flange portion 3 having an inner diameter slightly larger than the outer diameter of the disk 20, a peripheral edge portion 4 that protrudes outside the flange portion 3 in the horizontal direction, and a raised bottom portion 10. Further, a projecting piece receiver 5 for fitting, receiving, and locking a part of the projecting piece 12 is provided on the peripheral edge 4 of the bottom plate 1a.

The distance between the lower edge of the protruding piece receiver 5 and the upper end surface of the bottom plate 1 a is substantially equal to the thickness of the protruding piece 12 for accommodating the protruding piece 12 of the cylindrical lid 11. An opening 6 for fitting and inserting the protruding piece 12 of the cylindrical lid 11 into the protruding piece receiver 5, and an inner end of the protruding piece receiver 5 is provided between the outer periphery of the flange 3 and the cylindrical lid 11. A gap 7 having a thickness or more is provided. Further, a notch 8 is provided in the peripheral portion 4 of the bottom plate 1a corresponding to the lower side of the projecting piece receiver 5.

In the recording medium disk packaging container of the present invention, the raised bottom 10 provided on the bottom plate 1 a of the superimposing table 1 is a circle having a diameter which is the same as or slightly shorter than the diameter of the central non-recording surface of the recording medium disk 20. The height may be about 1 to 3 mm from the bottom plate 1a surface. The provision of the raised bottom 10 prevents the recording surface of the disc 20 from being damaged by contact with the bottom plate 1a even when the disc 20 is superimposed and stacked on the superimposing table 1.

Further, as shown in FIGS. 2 and 3, a plurality of annular ribs T 1, T 2, T 3 and the like are preferably provided on the back surface of the bottom plate 1 a of the overlapping table 1. By providing such an annular rib, the recording medium disk packaging container becomes less slippery and has the effect of reinforcing the bottom plate 1a. Further, the diameter of one of the annular ribs (T2 in the figure) is made slightly larger or smaller than the top diameter of the cylindrical lid 11 so that the annular projection 19 and the annular rib provided on the cylindrical lid 11 shown in FIG. When T2 can be fitted, recording medium disk packaging containers can be easily stacked.

In the above description, the example in which the center protruding shaft 2 is provided integrally with the bottom plate 1a is shown, but a separately molded one may be assembled. In this case, a disk may be fixed to the lower end of the center protruding shaft 2 and the disk may be placed on the bottom plate 1 a in the flange 3.

Next, FIG. 5 shows a plan view of the cylindrical lid, and FIG. 6 shows a cross-sectional view taken along line AA of FIG.

The cylindrical lid 11 has a truncated conical upper part 15 and a cylindrical lower part 16. The cylindrical lid 11 has a protruding piece 12 projecting in the horizontal direction on the outer periphery of the lower end. Although a plurality of protruding pieces 12 are provided, usually three to four protruding pieces are sufficient.

As shown in FIG. 6, when the top plate 18 of the cylindrical lid 11 is provided at a position lower than the top to form the annular projection 19, the annular projection 19 is fitted to the annular rib T2. And it is easy to stack recording medium packaging containers.

In the above description, an example in which the upper portion of the cylindrical lid 11 has a truncated cone shape and the lower portion has a cylindrical shape has been described, but the entire cylindrical lid 11 may have a truncated cone shape.

The superposing table 1 and the cylindrical lid 11 having such a configuration are mounted as follows. First, the superposition table 1 and the axis of the cylindrical lid 11 are aligned, and the lower end of the cylindrical lid 11 is pressed into contact with the flange 3 of the superposition table 1 so that the upper end of the central protruding shaft 2 becomes cylindrical lid 11. Into the recess 14. Next, when the cylindrical lid 11 is rotated in the R direction, the protruding piece 12 is fitted and housed in the protruding piece receiver 5 from the front end. At this time, since the protruding piece 12 has the protrusion 13, when the top of the protrusion 13 comes into contact with the lower surface of the protruding piece receiver 5, the notch 8 is provided in the peripheral portion 4, and the protruding piece 12 is lowered. Runs away and bends.

Further, when the cylindrical lid 11 is rotated, the protrusion 13 of the protruding piece 12 reaches the position of the groove 9 of the protruding piece receiver 5, and the protrusion 13 enters the groove 9. The cylinder lid 11 is released, and is positioned and fixed with respect to the superposition table 1. The projecting piece 12 is preferably provided with a stopper 17 for the projecting piece receiver 5.

When the cylindrical lid 11 is rotated in the reverse R direction, the protruding piece 12 comes out of the protruding piece receiver 5 of the recording medium disk packaging container having the cylindrical lid 11 mounted thereon, and the cylindrical lid 11 is reversed in the mounting order. Departs from the superimposition table 1.

The recording medium disk packaging container of the present invention can be formed of a thermoplastic resin molded product by injection molding, and may be entirely made of transparent plastic or opaque plastic. It is good to be made of transparent plastic which can see.

When storing the recording medium in the packaging container of the present invention, a cushion may be placed on each layer as needed, and a hole is formed at the top to prevent rattling of the recording medium. You may hold it with a cushion. However, since the recording medium disk packaging container of the present invention has the raised bottom 10 on the bottom plate 1a, there is no need to place a cushion at the bottom.

[0025]

[Effect of the invention]

 The recording medium disk packaging container of the present invention does not damage the recording surface of a recording medium disk such as an optical disk or a magnetic disk, is easy to handle, and is inexpensive to manufacture. Further, the structure in which the annular projection on the top and the annular rib on the bottom are fitted together is easy to stack and hardly falls down during display.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of a superimposing table of a recording medium disk packaging container of the present invention.

FIG. 2 is a bottom view showing an example of a superimposing table of the recording medium disk packaging container according to the present invention;

FIG. 3 is a cross-sectional view taken along line AA of FIG.

FIG. 4 is a sectional view taken along line BB of FIG. 1;

FIG. 5 is a plan view showing an example of the cylindrical lid of the recording medium disk packaging container of the present invention.

6 is a sectional view taken along line AA of FIG.

FIG. 7 is a cross-sectional view showing the entire recording medium disk packaging container of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 superimposition table 1a bottom plate 2 center projecting shaft 4 peripheral edge 5 projecting piece receiver 10 raised bottom T2 annular rib 11 cylindrical lid 12 projecting piece 19 annular projecting section

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takeshiro Yamada 343-9 Sonomachi, Inage-ku, Chiba-shi, Chiba (72) Inventor Hisao Kawakami 12-36 Shimoyuzuki, Hachioji-shi, Tokyo (72) Inventor Masahiro Matsubara Chiba (72) Inventor Tatsuo Fujii 1-1-1 Nihonbashi, Chuo-ku, Tokyo Inside TDK Corporation

Claims (2)

[Utility model registration claims] 1. A plurality of projecting pieces comprising a superimposing table having a central projecting shaft for superimposing and stacking recording medium disks and a cylindrical lid for covering the recording medium disks, the plurality of protruding pieces projecting horizontally on the outer periphery of the lower end of the cylindrical lid. In the recording medium disk packaging container provided with a horizontal projecting piece receiver for fitting and locking the projecting piece by the rotation of the cylindrical lid on the peripheral edge of the bottom plate of the superimposing table, the recording in which the bottom plate of the superimposing table is stored A recording medium disk packaging container having a circular raised bottom having a diameter equal to or slightly shorter than a diameter of a central non-recording surface of a medium disk. 2. The recording medium disk packaging according to claim 1, wherein an annular projection is provided on the cylindrical lid, and an annular rib fitted to the annular projection is provided on the back surface of the bottom plate of the superimposing table to facilitate stacking. container.