JP3052115U - Storage case for recording media discs - Google Patents

Abstract

(57) [Summary] [Problem] As a case for storing a disc such as a CD,
There is a case in which a pair of cover bodies that can swing and open and close are provided, and one of the cover bodies is provided with a boss portion that fits a central hole of the disc. The boss portion is provided with a radially dividing portion.
The method of taking out the disk is such that the boss portion is pressed down with one hand to reduce the diameter at the same time as the sink, and the other hand is used to hold and lift the disk, and both hands are required. A projection is provided on an outer peripheral portion of a boss. When the boss 5 is pushed in, the projection 23 comes into contact with the inner surface of the central hole 101 and the boss 5 is reduced in diameter. The disc 100 is lifted by the projection 23 to be resolved and enlarged. The disc 100 is now free and can be lifted with one hand.

Description

[Detailed description of the invention]

[0001]

[Usage field to which the invention belongs]

 The present invention relates to a storage case for a recording medium disk.

[0002]

[Prior art]

 A storage case for recording medium disks such as CDs, DVDs, LDs, and the like includes a pair of cover members which are swingably opened and closed with each other so as to separately cover both surfaces of the recording medium disks. And a holding plate that is loaded and held in the form of an insole on the inner surface side of the cover body, and a boss portion that fits into the center hole of the recording medium disk protrudes from the center of the holding plate. (For example, see Japanese Utility Model Publication No. 3-31748).

The boss has an outer diameter that is large enough to forcefully fit the central hole of the recording medium disk. Further, a through hole is provided at the center of the boss portion, and a large number of dividing portions are provided radially outward from the through hole so that the whole is radially arranged. Therefore, in this storage case, the recording medium disk can be held only by pushing the center hole of the recording medium disk into the boss portion of the holding plate. Also, when removing the recording medium disk, the center of the boss is pushed in to reduce the diameter of the boss to a smaller diameter than the center hole of the recording medium disk while sinking. In this state, the recording medium disk may be gripped and lifted from the holding plate.

[0004]

[Problems to be solved by the invention]

 In the above-mentioned conventional storage case, when taking out the recording medium disk from the holding plate, while pressing the center portion of the boss portion with one hand, simultaneously holding the recording medium disk with the other hand, the holding plate is held. It was necessary to lift from. In other words, both hands are required, not only because of the disturbing smell, but also because this operation must be performed with the storage case placed on a desk, etc. .

[0005] The present invention has been made in view of the above circumstances, and it is possible to insert and remove a recording medium disk with one hand and one touch, and also to be free from a positional constraint for inserting and removing the disk. It is intended to provide a storage case for a recording medium disk.

[0006]

[Means for Solving the Problems]

 In the present invention, the following technical measures were taken to achieve the above object. First, the storage case for a recording medium disk according to the present invention basically has a holding plate that covers at least the recording surface side of the recording medium disk. It is said that a boss fitting into the center hole of this was projected.

[0007] The holding plate may be a pair of cover members that are swingably opened and closed so as to be combined with one of the cover members, or may be provided separately from these cover members. The body may be mounted in the form of an insole on the inner surface side of one of the cover bodies. The boss portion is as follows.

[0008] That is, it is assumed that the recording medium disk is already fitted in the boss portion, and that the center portion of the boss portion is pressed. At this time, the boss portion contracts in a direction to escape from the central hole of the recording medium disk and decreases in diameter until the diameter becomes smaller than the central hole. Therefore, the boss easily escapes from the central hole of the recording medium disk.

Therefore, when the pushing operation on the boss portion is stopped due to the escape, the elastic restoring force stored against the sinking action and the diameter reducing action acts on the boss portion at this time. However, the boss section attempts to self-recover each of these actions, but in the order of its return, it first expands to eliminate the reduced diameter state, and then swells to restore the sinking action. Is caused.

[0010] That is, the boss portion is formed into a shape that cannot be fitted into the center hole of the recording medium disk by first expanding as described above. The opening edge of the hole is shaped to ride on the boss. Therefore, the recording medium disk is lifted onto the holding plate with the next bulging of the boss.

Needless to say, at this stage, since the hand has already been released from the boss, the recording medium can be used with the hand of the user, whether the hand separated from the boss or the opposite hand. What is necessary is just to hold the disk for use and take it out from the holding plate. Here, as described above, the phrase “the diameter of the boss portion is increased from the reduced size to a shape that cannot be fitted into the center hole of the recording medium disk” simply means that the boss portion is simply This naturally includes the case where the outer diameter is expanded and contracted so that the disk fits in the center hole of the recording medium disk and the disk does not fit in the central hole. However, the following is more effective. is there.

In other words, the boss has a projection outward in the radial direction in a state where the boss is in a normal state (in a state where the pushing operation is not performed) and interferes with the opening edge of the center hole of the recording medium disk. It is assumed to be protruding. However, when the protrusion is pressed into the boss portion and when the recording medium disk is brought into contact with the opening edge of the center hole when the recording medium disk is fitted into the boss portion, the diameter of the boss portion is reduced so as to accompany the recording medium. It can be retracted inside the center hole of the disc.

By doing so, the contact between the projection and the inner surface of the center hole of the recording medium disk can be made a direct and physical factor for causing the boss to have a diameter reducing action. As a result, the above-described diameter reducing action is assured and sharp. In the boss, the structure for expanding and contracting the outer diameter by the pressing operation of the center part is to form a plurality of dividing parts from the center part of the boss toward the outside in the radial direction, and The operation piece may be provided between adjacent ones.

Each of these operation pieces has a rising portion forming a peripheral wall portion as a boss portion, and an elastic expansion portion extending in an arc shape from the upper end of the rising portion along the outer periphery of the boss portion. I do. Then, the above-mentioned protrusion projecting outward in the radial direction is positioned on the extension destination side of the elastic expansion portion. Around the boss portion of the holding plate, a circumferential notch is provided for supporting only the base of the rising portion of the operation piece to separate the elastically enlarged portion and to make it float.

By adopting such a configuration, the operating piece can increase its spring force by the amount of the elastic expansion portion extending in the circumferential direction, and therefore increase the vertical movement amount and the radial movement amount of the projection. Therefore, the operation force for performing each of these operations can be reduced. In other words, when the boss is pushed in, the bending as the operation piece (sinking or shrinking in the direction of escaping from the center hole of the recording medium disk) is not constrained, and light and reliable operation is possible. Will do.

If a notch extending radially outward around the boss portion is provided around the boss portion of the holding plate while forming a pair on both sides of the root portion of the rising portion of each operation piece, A spring portion can be formed between the pair of radial cutouts. By providing such a spring portion, there is an advantage that the spring force of the operation piece can be further increased.

[0017] By providing a finger hook protruding toward the center of the boss at the extension end portion of the elastic expansion portion of the operation piece, the margin of the finger on the operation piece can be increased widely and sufficiently. There is an advantage that it is easy to do. Also, since some flexure can be obtained by the finger hook itself, there is an advantage that the spring force of the operation piece as a whole at the time of the pushing operation can be further increased.

If the holding plate is provided with a portion excluding the recording area on the recording surface side of the recording medium disk, for example, a spacer base portion that can abut against the outer periphery or the center of the disk, the boss portion can be provided. When the pressing operation force is transmitted to the recording medium disk, the recording medium disk can receive the operation force stably.

Therefore, certainty of various operations at the time of the pressing operation can be obtained. In addition, since the recording area on the recording surface side of the recording medium disk can be prevented from directly contacting the holding plate, there is an advantage that the recording area can be protected from scratches.

[0020]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the storage case 1 according to the present invention, as shown in FIGS. 4 and 5, the holding plate 2 and the cover body 3 can swing open and close with each other via hinge portions 2a, 3a provided at one end of each. The holding plate 2 and the cover 3 allow the storage medium 2 to be placed in a storage state covering both sides of the recording medium disk 100.

The holding plate 2 and the cover 3 are each formed of a transparent resin, an opaque resin, or the like. The holding plate 2 is provided with a boss 5 protruding from a substantially central portion of the plate surface so as to fit into the central hole 101 of the recording medium disk 100. Further, a raised spacer base 6 having a small ring shape surrounding the boss portion 5 and a raised spacer base 7 having a large ring shape surrounding the outside of the small diameter spacer base 6 are provided. ing.

As shown in FIGS. 1 and 2, the spacer bases 6, 7 have a recording area (not shown, but not shown) on the recording surface 102 side of the recording medium disk 100. It is a donut-shaped area excluding the vicinity of the center and the periphery. It is sufficient that the height of each of the spacer bases 6 and 7 is 1 mm or less. In the present embodiment, it is set to about 0.7 mm.

As shown in FIGS. 3 and 5, the boss portion 5 has a plurality of (three in the present embodiment) dividing portions 10 extending radially outward from the center of the upper surface. It is formed. An operating piece 11 is provided between each of the dividing sections 10. Each operation piece 11 includes a rising portion 13 forming a peripheral wall portion as the boss portion 5, an elastic expanding portion 14 extending in an arc shape from the upper end of the rising portion 13 along the outer periphery of the boss portion 5, A finger hook 15 protrudes from the extension end of the elastic expansion portion 14 toward the center of the upper surface of the boss 5.

On the other hand, around the boss 5 of the holding plate 2, only the base of the rising portion 13 of the operation piece 11 is supported, the elastic enlarged portion 14 is cut off, and a circumferential notch 17 for floating is provided. Is provided. Furthermore, a radial notch 18 is provided which extends radially outward around the boss 5 while forming a pair on both sides of the root of the rising portion 13 of each operation piece 11. The radial notch 18 is in communication with the circumferential notch 17 and the dividing portion 10 on the boss 5 side.

A spring portion 20 is formed between a pair of the radial cutouts 18 (both sides of the base of the rising portion 13). As shown in FIG. 2, the spring portion 20 has a slope that becomes closer to the boss portion 5 than the plate surface of the holding plate 2, and this slope serves as a bending allowance. Therefore, when the boss portion 5 is pushed in as shown in FIG. 8, a pressing force is applied to the finger hook portions 15 of all the operation pieces 11 at the same time. Inclination inward in the radial direction, bending of the elastic expanding portion 14, bending of the spring portion 20 around the boss portion 5, and the like occur. As a result, the boss portion 5 as a whole has a sinking action and a diameter reducing action.

Since the sinking action and the diameter reducing action are generated while resisting the elastic restoring force, if the pushing operation of the boss portion 5 is stopped, the boss portion 5 naturally rises to eliminate the sinking. And enlargement is performed to eliminate the diameter reduction effect. The operation piece 11 having such a structure is provided with a projection 23 at a portion to be extended in the elastic expansion portion 14, that is, at a position to be a base of the finger hook portion 15 so as to face radially outward of the boss portion 5. (See FIGS. 1 and 3).

The projection 23 normally interferes with the opening edge of the central hole 101 in the recording medium disk 100, that is, it interferes with the fitting of the central hole 101. As shown in FIG. 9, when the holding plate 2 and the cover body 3 are closed by swinging each other with the hinge portions 2 a, 3 a, the end of the cover body 3 near the hinge 3 a. Is projected outwardly from an end of the holding plate 2 near the hinge portion 2a, and an end face portion 30 that rises in a hook-like cross section is provided at this protruding portion.

When the storage case 1 is stored in a case rack (not shown) or the like, the end face portion 30 can be conveniently used as a finger hook when individually pulled out. Further, a label seal (not shown) or the like may be attached to the inside or outside of the end face portion 30 so that it can be used as an index. As described above, in the present embodiment, the storage case 1 has the two-piece structure of the holding plate 2 and the cover body 3, and the shape of the center fixing portion is the shape shown in FIG. In combination, the total thickness can be made extremely thin. That is, most of the conventional storage cases of this type have a three-piece structure including a pair of cover members and a holding plate to be put in the cover members, so that the entire thickness is about 10.4 mm. However, in the case of the present embodiment, it has been successfully suppressed to a half of that, that is, about 5.2 mm. At present, there are also known cases such as a two-piece CD / DVD or the like, but at present, the one having the shape of the central fixed portion as shown in the storage case (FIG. 3) having the above structure is not available. Since it does not exist, there is no such case having a thickness of about 5.2 mm which is about half of the conventional case. Therefore, it is possible to reduce the size of such a case by 50% in a practical manner by the storage case having the above structure.

Further, when this kind of case is made of only a transparent PS resin in which no high-impact PS resin is mixed, there is a limit to the spring property due to the characteristic of the PS resin that it is easily broken. Yes, it did not work practically to give the function of taking out a disc such as CD / DVD with one touch, etc., but it was fixed in the center as shown in the storage case (FIG. 3) having the above configuration. This was solved and made possible by the shape of the part.

The usage state of the storage case 1 having such a configuration will be described. First, in order to store the recording medium disk 100, as shown in FIG. 7, the recording medium disk 100 is placed on the upper portion of the boss portion 5, and the center hole 101 is aligned. At this time, since the projections 23 provided on the outer peripheral portion of the boss 5 obstruct, the recording medium disk 100 does not fit into the boss 5 as it is.

However, by simply pressing the recording medium disk 100 lightly, as shown in FIG. 6, the projections 23 can be pushed radially inward on the inner surface of the central hole 101 of the recording medium disk 100. The diameter of all the operation pieces 11, that is, the boss 5 as a whole is reduced with or without a small amount of sinking, and ultimately, as shown in FIGS. On the other hand, the recording medium disk 100 is securely fitted.

In the current case, a disc such as a CD / DVD is often detached from the fixed portion when the case is opened. After it fits in and is fixed, even if a disc such as a CD or DVD tries to come off due to shaking when it is carried around every day, the spring works in that direction as well, unless it is intentionally taken off. It is thought that the probability that discs such as CDs and DVDs are unintentionally detached from the fixed part in the daily life is greatly reduced. Therefore, to prevent accidents that often occur in the current case, such as discs such as CDs and DVDs dropping when the case is opened, causing damage or damage. Also, the storage case having the above configuration can provide a great effect.

Of course, after the recording medium disk 100 has been fitted into the boss 5, each operation piece 11 expands to eliminate the above-described diameter reducing action. Therefore, the recording medium disk 100 does not fall off from the boss portion 5 (holding plate 2). On the other hand, in order to remove the recording medium disk 100, the boss 5 is pushed in as shown in FIG. At this time, the finger hook 15 is pressed against all the operation pieces 11 as described above.

Then, as shown by a two-dot chain line in FIG. 1, a reaction force is applied to the projection 23 by abutting on the inner surface of the central hole 101 of the recording medium disk 100, and this reaction force causes All the operation pieces 11 have a radially inward reducing action. Therefore, the boss portion 5 escapes to the lower side of the center hole 101 in the recording medium disk 100 in a state where the diameter of the boss portion 5 is reduced as a whole.

When the boss 5 escapes from the central hole 101 of the recording medium disk 100, each operation piece 11 immediately expands to eliminate the above-described diameter reducing action. That is, due to the enlargement of the boss portion 5, the boss portion 5 cannot be fitted into the central hole 101 of the recording medium disk 100. Therefore, the opening edge of the central hole 101 of the recording medium disk 100 runs on the boss 5.

Therefore, if the pressing operation on the boss portion 5 is stopped, as shown in FIG. 7, the recording medium disk 100 is lifted as the boss portion 5 rises to eliminate the sinking. Things. Therefore, the recording medium disk 100 may be gripped and taken out.

The present invention is not limited to the above embodiments. For example, as in the second embodiment shown in FIG. 10, the holding plate 2 is formed as a separate body from a pair of cover bodies 35 and 36 which are connected to each other in a swingable manner. Alternatively, a structure in which the inner surface of one of the cover members 35 is loaded in an insole shape may be employed.

The spacer bases 6 and 7 provided on the holding plate 2 may be only one of them. The shape is not limited to a ring shape, but may be a polygonal shape, or a small block shape scattered along the circumferential direction of the recording medium disk 100. May be provided. The recording medium disk 100 is not limited to a disk-shaped one, but may be a polygonal one or the like.

[0039]

[Effect of the invention]

 As is clear from the above description, in the storage case for the recording medium disk according to the present invention, when the boss on which the recording medium disk is fitted is pushed in, the boss is reduced in diameter while sinking, After escaping from the center hole of the recording medium disc, release the push-in operation, first expand the glass to eliminate the reduced diameter state, and then swell to restore the sinking action Is caused to occur. Therefore, the recording medium disk is lifted onto the holding plate while riding on the enlarged boss.

At this point, it is not necessary to continue the pushing operation on the boss portion, so that the recording medium disk may be gripped by a favorite hand and taken out from the holding plate. That is, the recording medium disk can be put in and taken out of the storage case with one hand and with one touch, and therefore there is no restriction on the place where the disc is put in and taken out.

[Brief description of the drawings]

FIG. 1 is an enlarged cross-sectional view taken along line AA of FIG.

FIG. 2 is an enlarged sectional view taken along line BB of FIG. 3;

FIG. 3 is an enlarged front view showing a part (boss portion) of FIG. 5;

FIG. 4 is a perspective view schematically showing the first embodiment of the storage case according to the present invention.

FIG. 5 is a front view showing the storage case of the first embodiment in an expanded state.

FIG. 6 is a view corresponding to FIG. 1 for explaining a situation in which a recording medium disk is fitted into a boss.

FIG. 7 is a diagram corresponding to FIG. 1, illustrating a stage before the recording medium disk is fitted into the boss portion and a stage after the recording medium disk is taken out.

FIG. 8 is a cross-sectional view showing the state of the pushing operation to the boss portion when the recording medium disk is taken out, corresponding to the line CC in FIG. 5;

FIG. 9 is a side sectional view showing the vicinity of a hinge portion of the holding plate and the cover body in a closed state.

FIG. 10 is a perspective view schematically illustrating a storage case according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Storage case 2 Holding plate 2a Hinge part of a holding plate 3 Cover body (1st Embodiment) 3a Hinge part of a cover body 5 Boss part 6 Spacer base part 7 Spacer base part 10 Splitting part 11 Operation piece 13 Rising part 14 Elastic expansion Part 15 Finger Hook 17 Peripheral Notch 18 Radial Notch 20 Spring 23 Projection 35 Cover (Second Embodiment) 36 Cover (Second Embodiment) 100 Disk for Recording Medium 101 Center Hole 102 Recording Surface

Claims (8)

[Utility model registration claims] 1. A holding plate (2) for covering at least a recording surface (102) side of a recording medium disk (100), and the holding plate (2) has a central hole (2) of the recording medium disk (100). A boss part (5) that fits into the boss part (101) is protrudingly provided.
When the pressing operation is stopped when the diameter is reduced to a smaller diameter than the central hole (101) of (0), the central hole (10) of the recording medium disk (100) is firstly moved from the reduced state by the elastic restoring force.
A storage case for a recording medium disk, characterized in that the diameter is increased to a shape that cannot fit into 1), and then the sinking can be recovered. 2. The boss (5) has a projection (23) directed radially outward in a state where the boss normally interferes with the opening edge of the central hole (101) of the recording medium disk (100). The projection (23) is provided when the boss portion (5) is pushed in, and when the recording medium disk (100) is inserted into the boss portion (5).
When the central hole (101) comes into contact with the opening edge when it is fitted into the disk, the boss (5) can be retracted to the inside of the central hole (101) of the recording medium disk (100) by reducing the diameter of the boss (5). 2. The storage case for a recording medium disk according to claim 1, wherein: 3. In the boss portion (5), a plurality of divided portions (10) are formed radially outward from a center portion, so that each of the divided portions (10) is adjacent to each other. An operation piece (11) is formed, and each operation piece (11) is formed from a rising portion (13) forming a peripheral wall portion as a boss portion (5) and an upper end of the rising portion (13). A boss portion (5) having an elastic expanding portion (14) extending in an arc along the outer periphery, and a rising portion of the operation piece (11) around the boss portion (5) of the holding plate (2). A circumferential notch (17) is provided for supporting only the base of (13) to separate the elastic expansion part (14) and to raise the elastic expansion part (14). The elastic expansion part (14) in the operation piece (11) is provided. Projecting radially outward on the extension end side of (23) housing case of the recording medium disc according to claim 2, characterized in that is positioned. 4. A boss (5) in the holding plate (2).
Around the rising part (13) of each operation piece (11)
A radial notch (18) extending radially outward around the boss portion (5) while forming a pair on both sides of the base portion, and forming a pair of radial notches (18). 4. A storage case for a recording medium disk according to claim 3, wherein a spring portion (20) is formed between the two. 5. The operation piece (11) is provided with a finger hook (15) protruding from the extension end of the elastic expansion part (14) toward the center of the boss (5). The storage case for a recording medium disk according to claim 3 or 4, wherein 6. The holding plate (2) has a spacer pedestal (6) that can be brought into contact with a portion other than a recording area of the recording surface (102) of the recording medium disk (100).
The storage case for a recording medium disk according to any one of claims 1 to 5, wherein (7) is provided. 7. A hinge portion (2a) is provided at one end side of the holding plate (2), and the hinge portion (2a) is provided.
The recording device according to any one of claims 1 to 6, wherein a cover body (3) for covering the other surface of the recording medium disk (100) is swingably opened and closed via an interface. Storage case for media disks. 8. The holding plate (2) is one of a pair of covers (35, 36) which are swingably opened and closed with each other so as to separately cover both surfaces of the recording medium disk (100). The storage case for a recording medium disk according to any one of claims 1 to 6, wherein the storage case is mounted and held on an inner surface side of the cover body (35).