JP2009500257A - Disc protective container - Google Patents

Abstract

  A container for a CD or DVD has one case having a lid, a back plate, and a substrate, and one main hinge having a pair of hinge posts spaced forward from the substrate. And a main tray having a secondary hinge structure pivotally connected to the in-hinge structure and pivotally supporting a secondary tray, the trays being I can meet you. The main tray can have one additional secondary hinge structure that engages another secondary tray. Each of the trays has a double-sided structure to lock up to seven discs in contact with their support structure when the case is closed. The main tray can have rims that project on both sides to nest the secondary tray flush with the main tray.

Description

  The present invention relates to data discs with a central hole, such as optical discs including compact discs (CDs) and video discs (DVDs), and more particularly to devices that protect and enclose these discs.

  Data discs, such as compact discs and video discs, typically have a vast amount of digitally stored information that can be optically read through a transparent bottom layer by a movable head while the disc is spinning. Yes. This information is arranged in one or more tracks covered by a thin protective layer on the top surface of the disk, which can be provided with a label applied, for example, by a silk screen method. Even the normal handling of the disc can damage the bottom layer, resulting in loss of data due to optical path interference such as loss of focus and / or loss of image shift. In addition, even when a very thin protective layer on the order of 20 μm is damaged, data may be lost as a result of data being peeled off from a deposited metal layer having a thickness of only about 0.1 μm. Containers commonly used for disk protection include a single central pedestal that holds the disk in a held state by engaging the center hole without contacting the data receiving area on either side of the disk. Yes. Such a container is provided with a shelf part that contacts the outer peripheral edge of the disk in order to stabilize the disk from tilting on the pedestal. The disc is loaded into the container by grasping the opposing peripheral edge with a finger and dropping it onto the pedestal, and at the same time, the engagement with the pedestal is achieved by pressing near the center hole of the disc with the finger. The removal of the disc is similarly accomplished by pressing the pedestal with a finger and simultaneously grabbing and lifting the periphery of the disc.

  A class of containers known as "jewelry boxes" have a transparent plastic body, a transparent plastic lid pivoted on it, and various disk contact surfaces mounted within the body. An insertion member and an accompanying member. Another class of containers has a body and lid that are integrally formed and pivotally connected along the edges of an elongated, generally rectangular backplate section, such containers being called DVD boxes. It is slightly larger than the above jewelry box. These boxes have the important advantage of being cheaper than the jewelry box.

  Containers with internal partitions are also known for storing and accessing a pair of discs. In a typical configuration, such a container includes a partition having disk locking means on both sides, and a pair of transparent lids that are pivotally connected to each other along both edges on both sides of the partition. It has. Unfortunately, the conventional storage box for two disks is quite expensive and is very expensive because the mold cost must be amortized with a very small production quantity. There is also a container for three discs, in which one disc is supported at a fixed position with respect to the container body, and a pair of discs are supported on both sides of one pivoted tray. Exists. Such an example is configured as a DVD box in which the tray is pivotally supported on the back plate. In particular, the disadvantage of this arrangement is that the tray slides laterally with respect to the main body because the back plate pivots when the lid is opened. This sliding is not preferable because it may damage one or more discs. A further disadvantage is that the sliding causes vibrations that tend to disengage the disc from engagement with the support structure, which can cause the disc to fall when opening the container. This problem is exacerbated by the fact that the structure of a unitary DVD box generally has a snap-in structure to hold such a box closed, and a recess into which a finger is gripped when opening the box. It is somewhat difficult to open the box, especially when the structure of the DVD box needs to allow extra space in the box to release the tray. , Having limited standard outside dimensions. Prior art narrow finger recesses are also an obstacle to automatic loading of the disc into the container because it is extremely difficult to grasp by a machine to open.

  Another problem associated with multi-disk storage containers is that separate molds and parts inventory is required for multiple containers holding each number of disks, and for a specific number of disks. A container is usually impossible to divert to hold a larger number of disks.

  Therefore, there is a need for a disk protection container that can be inexpensively used for storage of multiple disks, or that overcomes at least some of the many disadvantages of the prior art.

  The present invention addresses this need by providing an inexpensive molded container for storing and conveniently accessing a plurality of CDs, DVDs supported in the container without sliding against the container when the container is opened and closed. Satisfy.

  According to one aspect of the present invention, the container includes a case having a base plate and a hinged lid, and a first disk of a plurality of disks, the case being closed by a central hole of the disk. The main tray panel includes a substrate base projecting forward from the substrate panel portion of the substrate portion and a main tray having a main tray panel portion for locking so as to come into contact with only the substrate portion. From the first surface of the part, a main tray base for supporting a second disk which is another disk among the plurality of disks protrudes, and the main tray has a first position substantially parallel to the substrate panel part, Hinged to the interior of the case for movement between a second position branched from the substrate panel for accessing the substrate pedestal; The main tray and the case for contacting and pivoting a secondary tray which only contacts the main tray when the case is closed and holds a third disk which is another disk. And a hinge structure fixedly coupled to the main tray in the vicinity of the hinge coupling portion, and the secondary tray engages with the hinge structure while holding the third disk. The presence of a hinge structure for the secondary tray in the vicinity of the hinge joint of the main tray to the case means that access to a plurality of discs mounted in the case is turned over the page of the book. There is an advantage that it can be easily done by moving the tray. A rim portion that protrudes from the main tray panel to form a cavity for receiving the secondary tray so that the secondary tray is accommodated in a state that is flush with the main tray. It is preferable to provide.

  The container has a secondary tray panel portion and a secondary tray base that protrudes from one surface of the secondary tray panel portion to lock the third disk. When the case is closed, the third disk contacts only the secondary tray. The main tray is also disposed in the vicinity of the hinged joint between the main tray and the case to support the tertiary tray holding the fourth disk on the side opposite to the secondary tray side of the main tray panel. It is preferable to have another hinge structure. The rim portion of the main tray protrudes from both sides of the main tray panel portion to form each cavity for accommodating the secondary and tertiary trays so that they are flush with the main tray. Is preferred. In addition, the container may include a tertiary tray configured similar to the secondary tray, with the fourth disk contacting only the tertiary tray when the case is closed. This tertiary tray can be double sided to hold a fifth disk that is in contact only with the tertiary tray when the case is closed. The secondary tray can also be a double sided structure to hold a sixth disk that is in contact only with the secondary tray when the case is closed. The main tray can also have a double-sided structure to hold the seventh disc that is in contact only with the main tray when the case is closed.

  The container may further comprise a substantially rectangular back plate portion hinged along both edges between the substrate portion and the lid portion. The hinge connecting portion of the main tray with respect to the base is preferably in the vicinity of the back plate portion and in the vicinity of the alignment portion with the back plate portion.

  In another aspect of the present invention, the container includes a base plate portion, a lid portion, a case having a back plate portion hinged between the base plate portion and the lid portion, and a front portion connected to the base plate portion and from the base plate portion. A main hinge structure with a pair of spaced hinge posts projecting to the main tray, the main tray pivoted on the main hinge structure, and secondary and tertiary trays holding third and fourth disks The first and second secondary hinge structures are provided on the main tray in the vicinity of the main hinge structure. The container can be equipped with secondary and / or tertiary trays. The respective pedestals of the main tray, the secondary tray and the tertiary tray can be provided on both sides for locking the seventh, sixth and fifth discs respectively, and these fifth, sixth and seventh discs can be provided. Are in contact only with the third, second and main trays, respectively, when the case is closed.

  The present invention relates to a disk container that is particularly effective and can be made to protect and accommodate discs such as CDs and DVDs of different numbers. 1 to 6, the DVD box 10 includes a case 12 having a transparent jacket (not shown) bonded in a normal manner for displaying a printed matter. , A lid portion 16 and a back plate portion 18 movably coupled to the substrate portion and the lid portion.In the configuration of the present embodiment, the case 12 is formed along both edges of the back plate portion 18. The substrate portion 14 and the lid portion 16 are respectively formed into a box by snap-contacting the substrate panel portion 19 and the lid panel portion 17 and the edges with each other. 10 is provided with peripheral wall portions 19S and 17S in a closed state, the back plate portion 18 and the peripheral wall portions 19S and 17S form the four side walls of the case 12, the lid panel portion 17 serves as the front wall, and the substrate pad. Le portion 19 forms a rear wall.

  The mating pair of retaining structures provides snap engagement of the case, the retaining structure on the lid 16 side is designated 17H, and in the exemplary configuration shown in FIG. Is a groove formed in the opposite side wall 17S. The fitting holding structure on the substrate part 14 side is indicated by 19H, and is, for example, an upright tab that engages with a groove forming the holding structure 17H.

  As shown in FIGS. 1 and 2, the case 12 also provides for opening the case, as further described in US Pat. No. 6,554,132, which is incorporated herein by reference. In order to provide an easily overhanging lip, inwardly recessed portions 17D and 19D are provided on the side opposite the back plate side. In the following description of the case 12, the direction toward the lid portion 16 is defined as the front and the direction away from the lid portion 16 is defined as the rear with reference to the substrate portion in the closed state of the box 10.

  In order to engage and hold the compact disc (CD) or digital video disc (DVD) 22, the base 20 of the case 12 protrudes forward from the substrate panel portion 19 of the substrate portion 14. Near the periphery of the disk 22 held on the pedestal 20, the covering member 28 of the case 12 also protrudes forward from the substrate panel unit 19 concentrically with the pedestal 20. In order to prevent accidental contact, the disk 22 protrudes forward. The enclosure 28 includes at least a pair of indentations 34 for inserting fingers to allow the user of the box 10 to grasp the opposing perimeter of the disk 22.

  The substrate portion 14 is formed with a main hinge structure 35 protruding therefrom, as schematically shown in FIG. 3, an exemplary and preferred structure being a slight equal distance from the backplate portion 18. A pair of spaced apart hinge posts 36 located apart. As is apparent from FIGS. 4-6, each hinge post 36 extends forward to pivot the main tray 40 of the box 10 inside the case 12, as shown in FIGS. A pair of support pieces 38 (shown as 38A and 38B) are provided. The hinge post 36 faces the direction in which the support piece 38 is aligned in parallel with the back plate portion 18, and has an outer shape that is detachably snap-engaged with each main shaft 43 formed integrally with the main tray 40. . It should be understood that hinge posts having other configurations and pivoting structures of the main tray 40 are also contemplated within the scope of the present invention.

  The main tray 40 includes a tray panel portion 19 ′ and a pair of pedestals 20 ′ facing the pedestal 20 facing the opposite side, and preferably an obscuration body 28 ′ having a recess 34 ′ for inserting a finger. (Only one side is shown in FIG. 1). It should be understood that the main tray 40 can be configured with a single pedestal 20 'on either the front or rear side of the tray. Further, the container 10 is not initially provided with the main tray 40, and the main tray 40 can be added when it becomes necessary to accommodate two or more discs 22. In an exemplary and preferred main tray 40 configuration, as will be described below, the front and rear protruding rims not only define the perimeter of the tray, but also create each cavity 49 for receiving an auxiliary tray. The rim portion 48 not only reinforces the tray 40 but also restricts the pivoting of the tray 40 relative to the base plate portion 14 and the lid portion 16. The rim portion 48 has an arched profile 50 along opposite sides to facilitate upward pivoting away of the main tray 40 from the substrate portion 14. A typical disc container 10 of the present invention has a configuration suitable for conventional discs having an outer diameter of 120 mm, an inner diameter of 15 mm, and a thickness of between 1.2 mm and 1.3 mm. A suitable material for both the case 12 and the tray 40 of the disk container 10 is polypropylene resin. In the exemplary configuration described herein, up to seven disks 22 are accommodated, and the case 12 has a length A of 191.2 mm (7.53 inches) and a width B of 136.mm. It can be 2 mm (5.36 inches) and a thickness C of only about 30 mm (1.18 inches).

  In accordance with the present invention, the container 10 of the present invention has at least one second hinge structure 41 to provide hinge support for at least one secondary tray 42, and the disk container shown in the drawings. In the preferred configuration, there are two second hinge structures, designated 41A and 41B, and corresponding secondary trays, designated 42A and 42B. The second hinge structure 41 is preferably arranged in the vicinity of the main hinge structure so that the trays 40 and 42 can be rolled like a book page. Rapid identification and access to a specific sheet is facilitated. In particular, each of the second hinge structures 41 is in the vicinity of each main shaft 43 for snapping engagement with a short shaft 45 projecting on both sides from the secondary tray 42, as shown in FIGS. , Secondary shaft holes (or through holes) 44 formed on both sides of the main tray 40 are provided. In FIG. 5, one short axis indicated by 45A protrudes from the tray 42A, and the other short axis indicated by 45B protrudes from the tray 42B. The shaft holes 44 are offset in a direction perpendicular to the tray panel portion 19 ′ to position each secondary tray 42 and allow pivoting over the main tray 40. When the secondary tray 42 is in an overlapping relationship with the main tray, the secondary tray is preferably nested within the aforementioned cavity 49 formed by the rim portion 48 of the main tray.

  Advantageously, the opening and closing of the case 12 does not involve sliding contact between the main tray 40 and the case 12 or between the secondary tray 42 and the main tray 40 and / or the case 12. Thus, the disc is not exposed to vibrations and rattling that may otherwise occur due to sliding contact when the case 12 is opened, and thus the present invention provides protection against dropping of the disc when the case is opened. Promoted. Also, each of the secondary trays 42 is nested within a corresponding cavity 49 of the main tray 40 when closed with respect to the main tray 40 to be flush with the rim portion 48. Also become. Thus, the main tray 40 is confined in the same position when the case 12 is closed, regardless of the presence or absence of the secondary tray 42. In order to support the main shaft 43 so that the main tray 40 does not move backward toward the substrate panel when the main tray 40 pivots, as shown in FIG. It would be worthy of evaluation that by properly configuring the strip (eg 38A), the rearward movement of the main tray 40 toward the substrate panel portion is effectively prevented.

  Further, referring to FIGS. 7 and 8, for the purpose of reinforcement and to support the main shaft 43 so as not to move toward the substrate panel portion 19, a bridging member 46 that integrally connects both support pieces 38 is provided. Another and preferred configuration is shown.

  It goes without saying that the container 10 is initially supplied without all of the trays 40 and 42, and then the necessary trays can be assembled according to the number of disks to be replenished. In particular, one case designated as 22A can be accommodated on the pedestal 20 using the case 12 that is not provided with the main tray 40 or the secondary tray 42. Using the main tray 40 (with a secondary pedestal 20 'on only one side), an additional disk designated 22B could be attached for a total of two. By adding a secondary tray 42A (with a secondary pedestal 20 'on one side only), another disk designated 22C can be attached, for a total of three. Similarly, a secondary tray 42B with the same single pedestal that allows for the addition of a single disk designated 22D can be added for a total of four. In addition, a secondary tray 42B with pedestals on both sides with two secondary pedestals 20 'allowing for the attachment of another disk designated 22E, for a total of five. Can do. Similarly, a secondary tray 42A having a pedestal on both sides to which another disk designated as 22F is attached can be added to make a total of six sheets. Finally, in order to accommodate another disk designated 22G, the main tray 40 can be provided with pedestals on both sides for a total of seven. It should be understood that three to six disks 22 can be mounted within the scope of the present invention by arranging trays 40 and / or 42 having different configurations in other ways. Alternatively, when considering fewer than seven discs, the thickness C of the case 12 can be reduced. For example, a configuration for five discs (obtained by removing either one of the two secondary trays 42 and reducing the thickness of the main tray 40 accordingly) has a thickness C Can be reduced to 22.5 mm (0.886 inches).

  While the invention has been described with reference to preferred embodiments, other embodiments are possible. For example, a thickness equivalent to the base 20 and the covering pair 28 can be formed in the lid panel portion 17 so that the thickness C of the case 12 is appropriately increased and further one additional disk is accommodated. Therefore, the spirit and scope of the appended claims should not necessarily be limited to the embodiments described herein.

The perspective view in the open state of the disk protection case by this invention which has the tray couple | bonded with the inside in the pivot state in the intermediate position The perspective view seen from the bottom face side in the closed state of the case of FIG. Sectional view in the closed state of the case of FIG. Partial top view of the case of FIG. 1 along line 4-4 of FIG. Partial front view of the case portion of FIG. Partial sectional view along line 6-6 in FIG. Sectional drawing corresponding to FIG. 6 which shows another structure of the hinge base part of a case Plan view of the hinge base of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Disc container 12 Case 14 Substrate part 16 Lid part 17 Lid panel part 18 Back plate part 19 Substrate panel part 19 'Tray panel part 20, 20' Base 22 Disc 35 Main hinge structure 36 Hinge post 38, 38A, 38B Support piece 40 Main tray 41, 41A, 41B Second hinge structure 42, 42A, 42B Secondary tray 43 Main shaft 48 Rim part 49 Cavity

Claims (30)

A container for a plurality of discs of the type having a central hole, a front and a back, and an outer periphery,
(A) A case having a substrate portion and a lid portion, wherein the substrate portion and the lid portion are hinged to open and close the case, and the substrate portion includes a substrate panel portion. ,
(B) one substrate pedestal that protrudes forward from the substrate panel portion in order to lock the first disk of the plurality of disks by the central hole of the disk, wherein the first disk is A substrate base that contacts only the substrate portion when the case is closed;
(C) One main tray having a main tray panel portion, wherein the main tray panel portion holds the second disk which is another disk of the plurality of disks. A main tray base projecting from a first surface of the section, wherein the main tray branches from the substrate panel portion to access the substrate base, and a first position substantially parallel to the substrate panel portion. A main tray hinged within the case for movement to and from a second position, wherein the second disc contacts only the main tray when the case is closed, and (d) A hinge between the main tray and the case for engaging and pivoting one secondary tray holding a third disk, another disk A hinge structure that is fixedly coupled to the main tray in the vicinity of the engagement portion, the secondary tray hinge structure is intended to be engaged with the hinge structure while maintaining the third disc,
A container characterized by comprising:   The main tray further includes a rim portion projecting from the main tray panel portion, and the rim portion is a single cavity for accommodating the secondary tray so as to be flush with the main tray. The container according to claim 1, wherein the container is formed.   The secondary tray has a secondary tray panel portion and a first surface of the secondary tray panel portion to engage the third disc by engaging the center hole of the third disc. 2. The apparatus according to claim 1, further comprising: a protruding secondary tray base, wherein the third disk contacts only the secondary tray when the case is closed. container.   The hinge structure is a first hinge structure, and the main tray supports the tertiary tray holding the fourth disk on the side opposite to the secondary tray side of the main tray panel portion. And a second hinge structure disposed in the vicinity of a hinge coupling portion between the main tray and the case, wherein the tertiary tray engages with the second hinge structure while holding the fourth disk. The container according to claim 3.   The main tray forms first and second cavities that protrude from both sides of the main tray panel portion and accommodate the secondary and tertiary trays so as to be flush with the main tray, respectively. The container according to claim 4, further comprising a rim portion.   The tertiary tray protrudes from the first surface of the tertiary tray panel portion to engage the tertiary tray panel portion and a center hole of the fourth disc to lock the fourth disc. 5. A container according to claim 4, comprising a plurality of tertiary tray pedestals, wherein the fourth disk contacts only the tertiary tray when the case is closed.   The tertiary tray pedestal is formed on both sides of the tertiary tray panel part to support the fifth disk on the second surface of the tertiary tray panel part, and the case is closed by the fifth disk. 7. A container according to claim 6, wherein the container is in contact only with the tertiary tray.   The secondary tray pedestal is formed on both sides of the secondary tray panel part to support a sixth disk on the second surface of the secondary tray panel part, and the sixth disk is formed in the case. 4. A container according to claim 3, wherein the container is in contact only with the secondary tray when closed.   The hinge structure is a first hinge structure, and the main tray supports the tertiary tray holding the fourth disk on the side opposite to the secondary tray side of the main tray panel portion. A second hinge structure disposed in the vicinity of a hinge coupling portion between the main tray and the case; and the tertiary tray is engaged with the second hinge structure while holding the fourth disk. The container according to claim 8.   The tertiary tray protrudes from the first surface of the tertiary tray panel portion to engage the tertiary tray panel portion and a center hole of the fourth disc to lock the fourth disc. 10. A container according to claim 9, comprising a plurality of tertiary tray pedestals, wherein the fourth disk contacts only the tertiary tray when the case is closed.   The tertiary tray pedestal is formed on both sides of the tertiary tray panel part to support the fifth disk on the second surface of the tertiary tray panel part, and the case is closed by the fifth disk. 11. A container according to claim 10, wherein the container is in contact only with the tertiary tray.   The main tray pedestal is formed on both surfaces of the main tray panel portion to support the seventh disc on the second surface of the main tray panel portion, and the seventh disc is closed when the case is closed. 9. The container according to claim 8, wherein the container contacts only the main tray.   The hinge structure is a first hinge structure, and the main tray supports the tertiary tray holding the fourth disk on the side opposite to the secondary tray side of the main tray panel portion. A second hinge structure disposed in the vicinity of a hinge coupling portion between the main tray and the case; and the tertiary tray is engaged with the second hinge structure while holding the fourth disk. The container according to claim 12.   The tertiary tray protrudes from the first surface of the tertiary tray panel portion to engage the tertiary tray panel portion and a center hole of the fourth disc to lock the fourth disc. 14. A container according to claim 13, comprising a plurality of tertiary tray pedestals, wherein the fourth disk contacts only the tertiary tray when the case is closed.   The tertiary tray pedestal is formed on both sides of the tertiary tray panel part to support the fifth disk on the second surface of the tertiary tray panel part, and the case is closed by the fifth disk. The container of claim 14, wherein the container is in contact only with the tertiary tray.   The main tray pedestal is formed on both surfaces of the main tray panel portion to support the seventh disc on the second surface of the main tray panel portion, and the seventh disc is closed when the case is closed. The container according to claim 3, wherein the container is in contact with only the main tray.   The hinge structure is a first hinge structure, and the main tray supports the tertiary tray holding the fourth disk on the side opposite to the secondary tray side of the main tray panel portion. A second hinge structure disposed in the vicinity of a hinge coupling portion between the main tray and the case; and the tertiary tray is engaged with the second hinge structure while holding the fourth disk. The container according to claim 16.   The tertiary tray protrudes from the first surface of the tertiary tray panel portion to engage the tertiary tray panel portion and a center hole of the fourth disc to lock the fourth disc. 18. A container according to claim 17, comprising a plurality of tertiary tray pedestals, wherein the fourth disk is in contact only with the tertiary tray when the case is closed.   The tertiary tray pedestal is formed on both sides of the tertiary tray panel part to support the fifth disk on the second surface of the tertiary tray panel part, and the case is closed when the case is closed. 19. A container according to claim 18, wherein the container is in contact only with the tertiary tray.   The hinge structure is a first hinge structure, and the main tray supports the tertiary tray holding the fourth disk on the side opposite to the secondary tray side of the main tray panel portion. A second hinge structure disposed in the vicinity of a hinge coupling portion between the main tray and the case; and the tertiary tray is engaged with the second hinge structure while holding the fourth disk. The container according to claim 1.   The tertiary tray includes a tertiary tray panel portion and a tertiary protruding from the first surface of the tertiary tray panel portion to engage the fourth disc by engaging the central hole of the fourth disc. 21. The container of claim 20, further comprising: a secondary tray pedestal, wherein the fourth disk contacts only the tertiary tray when the case is closed.   The tertiary tray pedestal is formed on both sides of the tertiary tray panel part to support the fifth disk on the second surface of the tertiary tray panel part, and the case is closed by the fifth disk. 22. A container according to claim 21, wherein the container is in contact only with the tertiary tray.   The container according to claim 1, further comprising a substantially rectangular back plate portion, wherein the base plate portion and the lid portion are hinge-coupled along both end portions of the back plate portion.   24. The hinge connection of the main tray is made to the substrate portion of the case in the vicinity of the back plate portion and in the vicinity of the alignment portion with the back plate portion. container. A container for a disc having a central hole, front and back surfaces, and an outer periphery,
(A) A case having a substrate portion, a lid portion, and a substantially rectangular back plate portion, wherein the substrate portion and the lid portion are arranged along both end portions of the back plate portion for opening and closing the case. The case where the board part is provided with a board panel part,
(B) one substrate base that protrudes forward from the substrate panel portion to lock the first disk of the plurality of disks by the center hole of the disk, wherein the first disk is A substrate base that contacts only the substrate portion when the case is closed;
(C) a main hinge structure including a pair of spaced hinge posts connected to the substrate portion and protruding forward from the substrate portion;
(D) one main tray having a main tray panel portion, wherein the main tray panel portion holds the second disk, which is another disk among the plurality of disks, A main tray base projecting from a first surface of the unit, wherein the main tray branches from a first position substantially parallel to the substrate panel unit and the substrate panel unit for accessing the substrate base unit. A main pivot structure is pivotally connected to the main hinge structure for movement to and from a second position, and the second disk contacts only the main tray when the case is closed. tray,
(E) fixed to the main tray at a position near the main hinge structure to engage and pivotally support a secondary lay that holds a third disk, which is another of the plurality of disks. Coupled first secondary hinge structure, wherein the secondary tray is engaged with the first secondary hinge structure while holding the third disk. Hinge structure,
(F) The first secondary hinge structure of the main tray panel portion for engaging and pivotally supporting a tertiary tray holding a fourth disk, which is another disk of the plurality of disks. A second secondary hinge structure fixedly coupled to the main tray disposed in the vicinity of the main hinge structure on a side opposite to the side, wherein the tertiary tray holds the fourth disk A second secondary hinge structure that engages with the second secondary hinge structure,
A container characterized by comprising:   The secondary tray is separated from the first surface of the secondary tray panel portion to engage the secondary tray panel portion and the third disc by engaging the central hole of the third disc. 26. A container according to claim 25, comprising a protruding secondary tray pedestal, wherein the third disk contacts only the secondary tray when the case is closed.   The main tray further includes a rim portion protruding from the main tray panel portion, the rim portion forms a cavity, and the secondary tray is connected to the main tray when the case is closed. 27. A container according to claim 26, wherein the container is flush.   The tertiary tray includes a tertiary tray panel portion and a tertiary protruding from the first surface of the tertiary tray panel portion for engaging the fourth disc by engaging the central hole of the fourth disc. And the fourth disc contacts only the tertiary tray when the case is closed, and the main tray also forms first and secondary tray receiving cavities, respectively. 27. The container according to claim 26, further comprising a rim portion projecting from both sides of the main tray panel portion.   The main tray further includes rim portions protruding from both sides of the main tray panel portion to form first and second cavities, respectively, and the secondary and tertiary trays are flush with the main tray. One cavity of the main tray is a first cavity, and the rim portion of the main tray projects from the opposite side of the main tray panel portion to form a second cavity on the opposite side of the first cavity. 27. The container of claim 26, wherein the tertiary tray is flush with the main tray when the case is closed.   The pedestals of the main tray, the secondary tray, and the tertiary tray are formed on both surfaces of each tray panel portion to respectively lock the seventh, sixth, and fifth disks, and the fifth, sixth, 29. The container of claim 28, wherein each of the seventh and seventh discs contacts only the tertiary, secondary, and main trays, respectively, when the case is closed.

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