JP3069238U - CD case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the manufacture of a CD case, reduce assembly costs, reduce the total thickness of the CD case, make it convenient for storage and transportation, and maintain the quality of high-grade packaging. SOLUTION: When injection molding a lower lid, a central convex portion and an auxiliary rib suitable for leaving a CD are provided on the surface, and the central convex portion has a hollow short columnar shape and an inverted U-shaped cut is provided on the circumference to form a plurality of notches. Elastic clamping claws are formed, and first and second protective ribs are provided at appropriate positions on the center convex portion where the CD is to be left and the concentric circles around the circumference to prevent the bottom surface of the CD from adhering to the lower cover surface. , Second
A third protection rib, which protrudes from the third protection rib and accommodates the CD inside, is formed outside the protection rib so that the upper surface of the CD does not contact the upper cover.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a kind of CD case, and more particularly, to a thin CD case for storing a single CD, which has a simple structure, is easy to assemble, can effectively reduce the thickness of a box, and has a good packaging texture. .

[0002]

[Prior art]

 Since the release of CDs with large storage capacity and accurate recording, many packaging and storage structures have been developed. The earliest one is a CD case that is now generally used to store and sell CDs, with a shallow lower lid, an upper lid that is pivotally supported at one end and can be opened and closed at the other end, and is provided inside the lower lid. It is composed of a mounted CD mounting plate. The CD mounting plate is provided with a recessed CD mounting portion, and a plurality of claw-shaped locking buttons are provided at the center of the CD mounting portion. The tongue is pressed to contract the locking claw to release the CD.

[0003] Such a known structure of a three-piece sandwich type is relatively expensive in terms of manufacturing, requires relatively large amount of material, and is manufactured through relatively many steps in assembly. , The production cost was relatively high. In addition, since the CD mounting plate must be arranged in the middle of the structure, the thickness after assembling has been reduced to about 10 mm, which is several times the thickness of the original CD. In addition, the structure was composed of many pieces of plastic material, so it was not suitable for environmental protection in terms of waste disposal.

[0004] Naturally, there are designs in the market where CDs are housed in single-sided thin paper bags or transparent plastic bags, but this is a practical design that can reduce manufacturing costs and packaging thickness. The impression was that the quality of the packaging was inferior and the quality of the CD contained inside was low.

[0005]

[Problems to be solved by the invention]

 The main object of the present invention is to provide a thin CD case for storing a single CD, which has a simple structure, is easy to assemble, can effectively reduce the thickness of a box, and has a good packaging texture. It is in.

[0006]

[Means for Solving the Problems]

 The invention of claim 1 is directed to a CD case in which the upper lid is pivotally supported by the lower lid at one end, and is opened and closed at the other end, and stores the CD in a storage space surrounded by the upper lid and the lower lid. A central convex portion and a protective rib for mounting a CD are provided integrally on one of the inner surfaces, and a CD mounting plate provided between an upper lid and a lower lid in a well-known CD case is omitted. The CD case is characterized in that the overall thickness is reduced. According to a second aspect of the present invention, the central convex portion has a hollow short cylindrical shape, and a plurality of resilient holding claws are formed by forming a notch in an inverted U shape from the upper end of the circumference thereof. A first protection rib, which is concentric with the central convex portion and protrudes short, is provided at a position close to the central convex portion, and a second protective rib, which is concentric with the central convex portion and protrudes short, is provided outside thereof. The CD case according to claim 1, wherein a third protective rib is provided outside the second protective rib and is provided outside the outer periphery of the CD. The invention according to claim 3 is characterized in that a convex rib for locating an advertising paper piece is provided at an appropriate position before and after the inner surface of the upper lid, a convex short side wall is provided on both sides, and a front and rear side of the side wall is provided. A semicircular concave portion is provided at an appropriate position, and the width of the rear end of the upper lid is reduced to form a U-shaped rear wall surrounding the rear portion. A pivot hole is provided on a short side of the rear wall. Provided on both sides of the rear end of the lower lid are convex arms provided with convex points pivotally connected to the above-mentioned pivot contact holes. The lower lid covers the front and rear surfaces of the upper surface and faces the upper lid. A U-shaped peripheral wall surrounding the peripheral wall, a semicircular recess is provided on the short sides on both sides of the peripheral wall, and a concave lip is provided on the left and right sides of the peripheral wall to contact the side wall of the upper lid. The CD case described in Item 1 is used. The invention according to claim 4 is characterized in that the thickness of the upper lid and the lower lid after closing is in the range of more than 5 mm and less than 7 mm, and the optimum thickness is 5.2 mm. CD case. The invention according to claim 5 is the CD case according to claim 3, characterized in that the lower lid is provided with an appropriate color for protecting the CD from direct irradiation with light.

[0007]

[Embodiment of the invention]

 The CD case of the present invention is a CD case for storing a CD in a space composed of a lower lid and an upper lid pivotally supported on one side of the lower lid and opened and closed on another side. Preferably, at the time of injection molding of the lower lid, a central convex portion and auxiliary ribs suitable for CD leaving are provided on the surface, and an inverted U-shaped notch is provided on the central convex portion in a hollow short column shape. To form a plurality of elastic holding claws, and first and second protection ribs are provided which protrude shortly at appropriate positions between the center left of the CD and the concentric circle around the ring, so that the bottom surface of the CD is in close contact with the surface of the lower lid. And a third protection rib protruding from the third protection rib and accommodating the CD inside is formed on the outside of the second protection rib so that the upper surface of the CD does not contact the upper cover. Simplifies manufacturing, reduces assembly costs, and reduces the The CD mounting plate has been removed, and the overall thickness of the CD case has been reduced to about 5.2 mm so that it does not take up space for storage and transportation and can maintain the quality of high-grade packaging. .

[0008]

【Example】

 As shown in FIGS. 1, 2, 3, and 4, the present invention pivots the upper lid 1 and the lower lid 2 so that they can be opened and closed in a face-to-face manner. Is a CD case having the following features.

A convex rib 11 for positioning a paper sheet for advertisement is provided at appropriate positions before and after the inner surface of the upper lid 1, short convex side walls 12 are provided on both sides, and front and rear sides of the side wall 12 are provided. An inwardly concave concave piece 13 is provided at an appropriate position, and the width of the rear end portion of the lid is reduced to form a U-shaped rear wall 14 surrounding the rear portion. A contact hole 142 is provided.

On both sides of the rear end of the lower cover 2, a convex arm 21 having a convex point 211 pivotally connected to the above-mentioned pivot contact hole 142 is provided symmetrically, and the lower lid 2 covers the front and rear of the upper surface. A concave lip having a U-shaped peripheral wall 22 facing the upper cover 1 and having semicircular recesses 222 on both short sides 221 of the peripheral wall 22 and abutting on the left and right sides of the peripheral wall 22. 23, a central convex portion 3 and some protective ribs 41, 42 are integrally provided on the surface of the lower lid 2 during injection molding, and the central convex portion 3 has a hollow short columnar shape. A plurality of elastic holding claws 31 are formed by making cuts in an inverted U shape from the upper end. The first protective rib 41 has a short convex shape, and is provided at an appropriate position concentric with the left center of the CD 3 outside the central convex portion. The second protective rib 42 also has a short convex shape and has a central convex shape. The third protection rib 43 is provided at an appropriate position concentric with the left center of the CD 3 outside the portion, the third protection rib 43 protrudes from the first and second protection ribs, and the CD outside the second protection rib 42. It is provided at a position corresponding to every quarter circle of the size.

Thus, as shown in FIGS. 2 and 5, when the upper lid 1 and the lower lid 2 are pivoted directly at the time of product production, a case for storing the CD5 is completed, and an intermediate CD mounting in a completely well-known technique is completed. Eliminating the plates can reduce costs and assembly complexity. In addition, the combination effectively reduces the overall thickness of the CD case, which can be reduced to less than 10 mm and close to 5 mm, and can be reduced to 5.2 mm according to a preferred embodiment, and the thickness is smaller than that of a known structure. Has been greatly reduced. Such a thin design makes it convenient for consumers to store CDs, and also saves volume when packing and shipping products, increasing the number of products packed in cardboard boxes, making it ideal for both transportation and stocking. Is also advantageous.

In addition, by providing the lower cover 2 with an appropriate color, the appearance is improved, and the CD to be stored is protected from direct irradiation with light. In use, the dustproof effect is achieved by combining the convex short side wall 12 of the upper lid 1 and the U-shaped rear wall 14 with the opposing U-shaped peripheral wall 22 of the lower lid 2 and the concave lip. 23 comes into contact with the upper lid 1, a plurality of elastic holding claws 31 provided in the central convex portion 3 are passed through the center hole of the CD5, and the first and second protective ribs 41 and 42 which project short are the CD5. When left unattended, the bottom of the CD is prevented from being worn by the surface of the lower cover 2, and the relatively high third protection rib 43 prevents the upper surface of the CD 5 from being directly pressed against the upper cover 1, thereby improving the storage effect of the CD5. It is exactly the same as the well-known CD case, so the overall appearance is not degraded by the outer packaging factor at the time of sale.

[0013]

[Effect of the invention]

 Taken together, the structure of the present invention has novelty and practicality, and its effective combination design can effectively reduce the manufacturing cost, prevent the abrasion of the CD when the CD is stored, and maintain the appearance of the external surface The CD case is thin and the CD case is thin and convenient for storage and transportation. The cost of CD packaging can be reduced. . Note that any design matter that can be easily modified or modified based on the present invention to achieve the same effect as the present invention belongs to the claims of the present invention.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a three-view drawing of the upper lid of the present invention.

FIG. 3 is a three-view diagram of the lower lid of the present invention.

FIG. 4 is a cross-sectional view illustrating a state in which a CD is accommodated in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Top cover 11 Convex rib 12 Side wall 13 Concave piece 14 Rear wall 141 Short side 142 Pivot hole 2 Lower cover 21 Convex arm 211 Convex point 22 Circular wall 221 Short side 222 Concave 23 Lip 3 Central convex 31 Elastic clamping nail 41 Protective rib 42 Protective rib 43 Protective rib 5 CD

Claims (5)

[Utility model registration claims] 1. A CD case in which an upper lid is pivotally supported at one end by a lower lid and is openable and closable at the other end to accommodate a CD in a storage space surrounded by the upper lid and the lower lid. A central convex portion and a protective rib for mounting a CD are integrally provided on one inner surface, and a CD mounting plate provided between an upper lid and a lower lid in a known CD case is omitted.
A CD case having a reduced overall thickness. 2. The central convex portion has a short hollow cylindrical shape, a notch is formed in an inverted U shape from the upper end of the circumference to form a plurality of elastic holding claws, and the central convex portion outside the central convex portion. A first protective rib, which is concentric with the central convex portion and protrudes short, is provided near the center, and a second protective rib, which is concentric with the central convex portion and protrudes short, is provided outside thereof. 3. The CD case according to claim 1, wherein a third protection rib protruding from the protection rib and located outside the outer periphery of the CD is provided. 3. A convex rib for positioning an advertising paper sheet is provided at appropriate positions before and after the inner surface of the upper lid, short convex side walls are provided on both sides, and a half is provided at an appropriate position before and after the side wall. A concave piece that is circularly concave inward is provided, the width of the rear end of the upper lid is reduced to form a U-shaped rear wall that surrounds the rear part, and a pivotal contact hole is provided in the short side of the rear wall. On both sides of the rear end of the lid, a convex arm having a convex point pivotally connected to the pivot hole is provided symmetrically. 2. The CD according to claim 1, wherein a semicircular recess is provided on the short side on both sides of the peripheral wall, and a concave lip is provided on the left and right sides of the peripheral wall to abut against the side wall of the upper lid. Case. 4. The thickness of the upper lid and the lower lid after being closed is 5 mm.
The CD case according to claim 3, wherein the range is larger than 7 mm and the optimum thickness is 5.2 mm. 5. The CD case according to claim 3, wherein the lower lid is provided with an appropriate color for protecting the CD from direct irradiation of light rays.