JP2007238173A - Column-shaped convex lens for magnifying backbone cover label of case, and optical disk case with projection for take-out - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that a media case of an optical disk such as a compact disk, a digital video disk or the like is thin and a labelling section in a backbone of a cover is narrow in width and area, it is hard to write a letter or a symbol greatly, and when the cases are arranged vertically in a large amount, it is difficult to know recorded contents from the label on the backbone cover with a small letter and it is also inconvenient to take out. <P>SOLUTION: The media case of an optical disk composed of a lid case and a storage case is composed of the lid case having an insertion opening void for the storage case which is adjacent in parallel to the convex lens of a pole type and the flat surface section of the same lens arranged so that a curved surface section may become the external and the flat surface section may become the internal using the whole backbone cover which faces the bonding section of the lid case and the storage case having the backbone cover for letter description which clips a part of both the ends of a long arm and makes the dimension of a short arm the thickness in order to insert into this void. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a magnifying lens and a disc holder case having an ejecting projection for facilitating confirmation of characters, symbols, and the like on a case back cover describing information on an optical disc.

An invention example using a lens as a technique for enlarging back cover label information of a box case such as a CD case is disclosed as follows.
Patent Literature 1
Patent Document 2 of British Patent Application GB2222143A
US Pat. No. 5,336,073 Patent Document 3
Japanese Patent Application No. 2002-294283 (P2002-294283) Utility Model Literature 4
6-128576
Utility model literature 5
In this application, a hemispherical lens is arranged on the side surface of a compact disc (CD) case, and a part of a back cover label facing it is enlarged and a kamaboko type convex lens is used. In addition to the technology, each method is disclosed as a method of attaching another lens to the case.

Problems to be solved by the invention

  CD for computer, music and video. A large number of optical disc / media storage cases such as DVDs are increasingly owned as information increases. For this reason, the thickness of the conventional general-purpose case is about 9 to 11 mm due to the stock efficiency, and the cell disc case as well as the recent blank disc case is about 5 mm thin.

In connection with this, the media content described on the back label etc. using the case thickness may be difficult to see even if it is described, so there is a tendency to be neglected. Using a special case with a back thickness of about 8 mm, the theme is written on the back and surpassed.
In this way, the current optical disc case cannot be said to meet the demands of an era in which many are arranged vertically and individuals are holding many disc media side by side.

In order to effectively use the stock space and facilitate the search, it was necessary to clearly display the media contents on the back cover of the thin case.
However, each case already disclosed has drawbacks that cannot be put to practical use in the following points.

  That is, in any of the inventions, the lens is created by using a part of the flat surface portion constituting the disc case, and is not a method for making the entire lens surface usable as a lens. Furthermore, the back cover part is also a form using the inside of the case excluding the case flat part. Therefore, it is practically impossible to accurately describe or place the target character or symbol in the center of the case, which is the lens focus, because of the case structure or character label structure. However, it has a large expansion distortion and is difficult to use effectively. Further, since the spine portion is mainly used inside the case, there is a drawback that the described portion has to have a small area as compared with the entire case excluding the case bottom thickness.

Means for solving the problem

  The viewpoint to be solved is to find a media content display method for a thin case and store it vertically without changing the size, form and manufacturing cost of the current disk media case as much as possible. Is to make it.

  The present invention utilizes all of the columnar convex lenses corresponding to the full width and full length of the lid case spine, so that the storage case (having a media storage portion) spine is placed at the lens focal point. By appropriately arranging the symbol description portion on the lens surface, it is possible to manufacture an optical disc media case that effectively uses the lens enlargement function without being decentered.

  Also, when thin cases are stored vertically, it is difficult to take out because the cases are in close contact with each other. Taking out the projections on the top and bottom of the lens using the thickness of the columnar lens makes it easy to take out. To do.

The invention's effect

  The present invention has a structure in which the columnar convex lens of the lid case spine portion facing the lid and each case connecting portion is supported by the upper and lower vertical knitting portions of the case, and the case back cover in the case insertion space of the case By inserting the part and placing the object such as letters and symbols on the back cover at the lens focus, the distortion of the object is reduced and enlarged, and the entire vertical length of the storage case is used as the back cover description part. It can be used widely, and it has the effect that the characters on the back cover including these can be enlarged about twice.

  Furthermore, using the thickness of the columnar lens, the projections are provided on the upper and lower ends of the lens, and when this is used, it is possible to store thin cases vertically, in addition to displaying cell video, Even when storing a lot of personal media cases, there is an effect that the case where the cases are in close contact with each other is released from difficulty.

  FIG. 1 is an embodiment of a case according to the present invention, and shows an external view of a storage case having a columnar convex lens and a lid case having an insertion port for the storage case and a spine portion inserted into the lid case (widely). In the case of a thin case having a long side of 142 mm, a short side of 125 mm, and a height of 5 mm, which is a general case).

  In this example, the columnar convex lens of the present invention is connected to a lid case and a disc storage case based on a plastic case with a total height of 5 mm and a base thickness of 1 mm when a wide area portion is placed on a flat surface of a current thin CD or DVD case. An example is shown in which a cover case provided with a storage case insertion opening in parallel with the lens plane and a character / symbol description column provided on the back cover part of the storage case are provided on the spine portion facing the cover.

  1 has an A columnar convex lens portion having a radius of 5 mm, a case width of 5 mm, and a thickness of 4 mm in the direction of the case connecting portion in a 142 mm portion having the same dimension as the long side of the lid case. This is a lid case having a B storage case insertion opening of 121 mm in length and 2 mm in width obtained by subtracting 2 mm from the case edge in parallel with the plane.

II in FIG. 1 is a storage case having a D spine portion shortened by 3 mm from both ends of the spine portion corresponding to the total length of the case of 125 mm. C side part made perpendicular to the bottom of the case and height 4mm for insertion into the lid case, D is also perpendicular to the bottom of the case and 3mm from both ends to be inserted into the lid opening This is a spine cover portion with a height of 5 mm that does not have any.
Thus, the case D spine portion has the same height as the case height of 5 mm, and has an area of 125% as compared with the case of the existing case of 4 mm.

By inserting 1 mm of the protruding part of the back cover of the storage case II into the B insertion slot of the lid case of I in the figure, the letters / symbols described on the back cover part are placed near the focal point of the columnar convex lens of IA As a result, it becomes possible to see clear enlarged characters from outside the case without distortion.
Enter characters, symbols, and drawings to be enlarged in this widely secured description area, or attach labels to display information inside the media. However, if you add an enlargement effect with a lens to enlarge the display area width, Characters and the like that are enlarged about 1.8 times compared to the case described in the case will be seen.

  In addition, in the case where the thin case is stored in a vertically-adhered manner by providing the upper and lower end portions of the convex lens A provided on the lid case of FIG. Corresponding to take out. Convenient for efficient use of stock space is obtained, and it corresponds to the increasing media storage era.

  The back cover part label enlarged columnar convex lens and the optical media case with the protrusion for taking out according to the present invention are not expensive, but in the future, the thin media case will be the case. Considering that it will become the mainstream, its practical value is extremely high, so it has great utility value for the manufacturing industry.

  Schematic diagram of assembly of lid case and storage case when the columnar convex lens of the present invention is provided in the current media case of 5 mm thickness   FIG. 1 is a partially enlarged view of a storage case having a columnar convex lens, a lid case having a storage case insertion opening, and a back cover portion corresponding to the case height.   Schematic enlarged view with protrusions for disk removal on both ends of the columnar convex lens

Claims (2)

  CD that consists of a lid case and storage case Using the entire back cover part of the lid case facing the connecting part of the lid case of the optical disk and media case such as DVD (the case where no media is mounted) and the storage case (media storage case), the curved surface part is the outside and the flat part is the inside Columnar convex lens (focal length of the case spine short side dimension, lens with the depth from the phase to the plane minus 1 mm from the focal length) and a storage case adjacent to the lens plane part in parallel A lid case having a space for an insertion port (an insertion port opened to a width obtained by adding 1 mm to the case bottom thickness from a position of a certain dimension from both ends of the case) and a width of a certain dimension from both ends for insertion into this space. Enlarging the letters and symbols on the back cover part of the storage case, which consists of a case storage case with a back cover part with a short side thickness. Disk media case having a lid case and the storage case, wherein   CD. An optical disc / media case characterized by having J-shaped take-out projections at the upper and lower ends of a columnar convex lens having a width similar to the case thickness provided on a disc / media lid case such as a DVD

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