JPH11334783A - Optical disk packaging body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an optical disk packaging body whose prime cost can be reduced and whose storage efficiency can be improved. SOLUTION: The whole of an optical disk (a) is covered airtightly by packaging sheets 11 and 12 of an optical disk packaging body, and air is removed from the interiors of the packaging sheets 11 and 12 storing the optical disk (a), and the packaging sheets 11 and 12 are provided with unsealing means for unsealing respectively the unsealing means. The packaging sheets 11 and 12 form at least a pair of sheets disposed on both main face sides of the optical disk (a), and the packaging sheets 11 and 12 are stuck together on a sticking section 14 on the periphery of the optical disk (a).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a so-called compact disk (so-called "CD"), CD-ROM, CD-ROM, and so on.
The present invention relates to an optical disk package that packages optical disks marketed under the names of R, CD-RW, and the like.

[0002]

2. Description of the Related Art An optical disk as described above is, for example, shown in FIG.
As shown in FIG. 1, the optical disk a has a thin disk shape, and has a clamp hole b at the center of the optical disk a for mounting a clamper of a rotary spindle when the optical disk a is loaded on a disk player or the like. Conventionally, such an optical disk is shipped from a factory and sold in a state of being housed in a plastic case.

The case for storing the optical disk a is as shown in FIG. 31 and holds the optical disk so as not to move using the clamp hole b. This storage case is rotatably pivotally mounted on a shallow rectangular box 1 made of a transparent resin such as polystyrene, and on one side of the box 1.
And a lid 2 that can open and close the box 1.

[0004] Side plates 5, 5 provided on both sides of the rear portion of the box 1
Through holes 7, 7 are provided at the rear end. On the other hand, lid 2
The end portions of the side plates 10, 10 are extended downward in FIG. 31, and a pair of projections 9, 9,
Is provided. By fitting the projections 9, 9 into the through holes 7, 7 of the box 1, the ends of the side plates 10, 10 of the lid 2 are supported by the projections 9, 9, and the side plates 5, 5 Is rotatably pivoted to the end of the.

Further, the box 1 has a disk holder 3 fitted therein so as not to move. FIG. 31 shows a state where the disk holder 3 is removed from the box 1. . The lid 2 closes the box 1 so as to completely cover the disk holder 3. The disk holder 3 is usually made of a non-transparent resin. An index card 8 indicating the recorded contents of the optical disk is inserted inside the transparent lid 2.

At the center of the disk holder 3, a shallow circular recess 4 having a diameter slightly larger than the diameter of the optical disk a is formed. In the center of the concave portion 4 is provided a fixing portion 6 in which a large number of claws are arranged in a circle to fit the clamp hole b of the optical disk a so as to hold the optical disk a in the concave portion 4 without moving. I have. When the optical disk a is stored in the storage case, the optical disk a is stored in the concave portion 4 of the disk holder 3 with the lid 2 opened, and the area around the clamp hole b is pushed with a finger to make the same. b is fitted around the claw of the fixing portion 6. In this state, the surface of the optical disk a on which the recording light and the reproduction light are incident is held in the concave portion 4 of the disk holder 3 in a non-contact manner.

The optical disk a is stored in the storage case as described above, and is further shipped from a factory in a state where the storage case is wrapped in a thin plastic film, and sold to consumers at retail stores. The consumer peels off the thin plastic film, opens the lid 2 of the storage case, takes out the optical disk a inside, and uses it. Thereafter, the storage case is generally used as a storage container for the optical disk.

[0008]

In recent years, an optical disk called a CD-R, which can record a signal only once, has begun to spread. This CD-R uses a dedicated CD-R drive and allows a user to record computer data and music only once. That is,
Before being sold, it is provided as a blank disc on which no signal is recorded.

Since the above-mentioned storage case is formed of a resin molded body and is an assembly of a plurality of members, there is naturally a limit in reducing the manufacturing cost. A music CD is a so-called resale product, and a CD-ROM in which software of a personal computer is recorded is also a licensed product based on copyright, and all of them are maintained at a certain price.
For this reason, the cost occupied by the storage case of these products is almost negligible.

On the other hand, the above-mentioned CD which is a blank medium
As for -R, the selling price is decreasing as it is becoming established as a medium familiar to individual users. However, when the storage case as described above is used, the unit price is added to the selling price of the CD-R as a medium, and the selling price has to be increased accordingly. In addition, the storage case has a thickness several times that of the optical disk, and therefore requires a large volume when storing a large number of optical disks. Therefore, there is a demand for a package that can be easily reduced in cost and does not require a large volume for storage. Also, in actual use, it is necessary to take out the CD while holding down the central projection when taking out the optical disc a, which takes time and effort.

Since a CD-ROM or the like is mailed or an optical disk is enclosed in a package case of package software, a plastic single plate can be used as a case for an optical disk which can be reduced in cost and can be made thinner. Shaped cases and packages combining nonwoven bags and paperboard are also used. However, such a package is suitable for storing individual optical discs in a packaging case of package software or supplying them in a form bound to a book, but is not suitable for supplying only optical discs to an end user through a distribution channel. Is not suitable. SUMMARY OF THE INVENTION The present invention has been made in view of such a problem in the conventional optical disk packaging, and an object of the present invention is to provide an optical disk package capable of reducing costs and improving storage efficiency.

[0012]

According to the present invention, in order to achieve the above object, the optical disc a is vacuum-packaged by using the wrapping sheets 11 and 12 capable of air-tightly wrapping the optical disc a. This simplifies the packaging of the optical disk a, reduces the packaging cost, and enables the volume of the optical disk package to be reduced.
Quality can be maintained.

That is, in the optical disk package according to the present invention, the entire optical disk a is airtightly covered with the packaging sheets 11 and 12, and air is removed from the interior of the packaging sheets 11 and 12 containing the optical disk a. 1
Reference numerals 1 and 12 are characterized in that they have opening means for opening them. For example, the packaging sheets 11, 1
Reference numeral 2 denotes at least a pair of sheets arranged on both main surfaces of the optical disk a, and these packaging sheets 11 and 12 are bonded at a bonding portion 14 around the optical disk a.

In such an optical disk package, since the optical disk a is air-tightly vacuum-packaged by the packaging sheets 11 and 12, the packaging is extremely easy to automate. Particularly, by laminating and packaging at least a pair of sheets arranged on both main surface sides of the optical disk a around the optical disk a, packaging of the optical disk on the automation line can be performed extremely easily. And such packaging sheets 11 and 12
In the packaging according to the above, the thickness of the package can be reduced as compared with the box-shaped storage case. In particular, by vacuum packaging, the volume occupied by the space becomes extremely small, and the storage efficiency can be improved. In addition, the vacuum packaging eliminates deterioration of the optical disk due to contact with oxygen, and provides a package excellent in storage stability of the optical disk.

For example, it is preferable that the distance g between the bonding portion 14 of the packaging sheets 11 and 12 and the peripheral portion of the optical disk a be substantially equal over the entire circumference of the optical disk a. Further, it is preferable that the difference between the heights δ ₁ and δ ₂ of the surfaces of the packaging sheets 11 and 12 sandwiching the optical disk a and the bonding portion 14 be substantially equal on both sides of the packaging sheets 11 and 12. By doing so, the stress of the wrapping sheets 11 and 12 when the optical disk a is wrapped is evenly applied to the optical disk a, and the optical disk a is not deformed such as bent.

As a more specific form of the optical disk package, a bonding portion 14 around a pair of packaging sheets 11 and 12 is provided.
An optical disk a is stored in a portion surrounded by a circle, and one of the packaging sheets 12 is provided with a cutting line 54 so as to cross a position shifted from the center of the stored optical disk a. And in this optical disk package,
When the length of the cutting line 54 is L, the length at which the cutting line 54 cuts the optical disc a is 1 and the length of the arc of the length l of the optical disc a is Ar, 2L> l + Ar.

In this optical disk package, the package sheet 12 can be opened by cutting a part of the packaging sheet 12 along the cutting line 54. When the portion above the cut line 54 is turned up, the cut line 54 is opened, and an opening 54 'larger than the portion of the optical disk a above the cut line 54 is formed. Therefore, the optical disk a can be taken out from the opening 54 ', and then the optical disk a can be stored. Especially in this package,
When the optical disk a is stored, the entire optical disk a is covered with the pair of packaging sheets 11 and 12, and the cutting line 54 forming the opening is formed so as to cross the optical disk a. There is no fear that the optical disk a will fall off.

The wrapping sheets 11 and 12 are suitably made of stretchable polypropylene, but may be polyethylene wrapping sheets 11 and 12. And packaging sheet 1
It is preferable that at least the surfaces of the optical disks a and 12 on which the recording light and the reproduction light are incident have a light shielding property with respect to the recording light and the reproduction light. As a result, it is possible to prevent deterioration of the optical disc a due to solar radiation or the like.

The optical disk a is wrapped with the wrapping sheets 11 and 12 in a state of being superimposed on the reinforcing plate 20 which is less flexible.
It should be stored inside. Accordingly, it is possible to prevent the optical disk a from being deformed when an external force is applied to the optical disk package. Further, the reinforcing plate 20 having a light-shielding property against recording light and reproduction light is overlapped on the side of the optical disk a that covers the surface on which the recording light and reproduction light are incident, so that the optical disk At the same time. If the hardness of the packaging sheet 11 or the reinforcing plate 20 in contact with the recording light or reproduction light incident surface of the optical disk a is lower than that of the optical disk a, the optical disk a
The surface on which the recording light or reproduction light is incident can be prevented from being damaged.

[0020]

Embodiments of the present invention will now be described specifically and in detail with reference to the drawings.
1 to 3 show an example of an optical disk package according to the present invention. The disk-shaped optical disk a is sandwiched between a pair of rectangular packaging sheets 11 and 12, and the periphery of the optical disk a is bonded and sealed. The air in the storage section 15 between the packaging sheets 11 and 12 storing the optical disk a is excluded and is in a vacuum state.

FIG. 1 shows a state in which the upper packaging sheet 12 is partially peeled off from the lower packaging sheet 11. In FIG. 1, reference numeral 14 denotes a bonding portion in which a pair of packaging sheets 11 and 12 are bonded. Numeral 13 denotes a bonding portion 1 in which the upper packaging sheet 12 has been peeled from the lower packaging sheet 11.
4 is shown. A non-adhesive portion 50 which is a part of the bonding portion 14 and is not partially bonded is formed at a corner portion of the packaging sheets 11 and 12.
2 can be peeled off. Although the packaging sheets 11 and 12 shown in FIG. 1 are square, the shape may be circular, rectangular, polygonal, or other shapes.

As shown in FIG. 3, a pair of packaging sheets 1
Reference numerals 1 and 12 respectively denote two sheets 16, 17, 18,
19 and the inner sheet 1
7 and 19 and the outer sheets 16 and 18 are in close contact with each other. For example, the outer sheets 16 and 18 are made of a relatively hard plastic sheet, and the inner sheets 17 and 19 are made of a plastic sheet softer than the surface of the optical disc a on which recording light and reproduction light are incident. Since the outer sheets 16 and 18 are hard, they are not easily deformed by an external force.
Since the relatively soft inner sheets 17 and 19 come into contact with the surface of the optical disk a, it is favorable from the viewpoint of protection of the optical disc a.

For the packaging sheets 11 and 12, for example, stretchable polypropylene, stretchable polyethylene and the like can be used.
Pigment or the like is added to a material forming the packaging sheet 11 that covers a surface (hereinafter, referred to as a “recording surface”) of the optical disc a, on which recording light or reproduction light is incident, among the packaging sheets 11 and 12, and recording is performed. It is preferable that the recording surface of the optical disc a on which light or reproduction light is incident can be shielded. The wavelength of the light to be shielded is the same wavelength as the recording light and the reproduction light, but light of other wavelengths may be shielded. The light-shielding packaging sheet 11 includes the inner sheet 17 and the outer sheet 1.
6 may be used.

The outer sheets 16, 18 of the wrapping sheets 11, 12, in particular, contain an antistatic agent or the like and are hardly charged, so that sticking between optical disk packages can be prevented. As described above, by arranging the packaging sheets 11 and 12 as two or more layers and arranging the sheets having appropriate physical properties, it is possible to secure the necessary function as the optical disk package.

As shown in FIG. 3, the packaging sheets 11 and 12
Assuming that the distance between the bonding portion 14 and the peripheral portion of the optical disk a is g, the distance g is preferably substantially equal over the entire circumference of the optical disk a. Also, the packaging sheet 11,
Assuming that the difference in height between the surface of the bonding portion 14 and the portion sandwiching the optical disc a is δ ₁ , δ ₂ on both sides of the packaging sheets 11, 12, the difference δ ₁ ,
It is preferable that δ _{2 be} substantially equal to each other. By doing so, the packaging sheet 1 when the optical disc a is packaged
The stresses 1 and 12 are evenly applied to the entire optical disc a, and the optical disc a is not deformed such as bent.

FIG. 4 shows, in addition to the optical disk a, a reinforcing plate 20 which is less flexible than the optical disk a is superimposed on the optical disk a.
This is vacuum-packaged at 12. When the reinforcing plate 20 is overlaid on the recording surface of the optical disc a and has a light shielding property, the packaging sheet 11 does not need to have a light shielding property. Rather, the packaging sheet 11 is made transparent and the reinforcing plate 20
By printing a product logo and other designed figures and patterns on the surface visible from the outside through the packaging sheet 11, the design of the product packaging can be enhanced. The reinforcing plate 20 is made of, for example, a plastic plate and has a higher rigidity than the optical disk a, but has a surface hardness lower than the hardness of the recording surface side of the optical disk a. Can be prevented from sticking.

FIG. 5 shows a case where the optical disk a is
And the package 21 and the packaging sheets 11 and 12 are vacuum-packaged. Since the nonwoven fabric has air permeability, no air remains in the bag 21 when vacuum-packing with the packaging sheets 11 and 12. After the packaging sheets 11 and 12 are peeled off and the optical disc package is opened, the nonwoven fabric bag 21 is used as a secondary case for accommodating the optical disc a as needed.

In the example shown in FIG. 6, a tray-shaped wrapping sheet 22 having relatively high hardness is used, and the optical disk a is stored therein. The packaging sheet 22 has a projection 24 at the center in the inside thereof, and holds the recording surface c of the optical disc a away from the packaging sheet 22 in a state where the clamp hole b of the optical disc a is fitted into the projection 24. Another packaging sheet 23 is superimposed on the packaging sheet 22, and in a state where air is removed from between the packaging sheets 22 and 23, the peripheral portions of the packaging sheets 22 and 23 are airtightly bonded as a bonding portion 25. I have.

In such a package, even if a relatively hard packaging sheet 22 is used, it does not come into contact with the recording surface c of the optical disk a. There is no. By making the packages 22 and 23 light-shielding, deterioration of the optical disk a due to sunlight can be prevented. In addition, even after a part or all of the bonding part 25 of the packaging sheets 22 and 23 is once peeled off, the bonding part 25 can be bonded again.
The package itself can be used as a secondary case for storing the optical disk a as needed.

The optical disk package shown in FIG. 7 is a modification of the optical disk package shown in FIG. This FIG.
In the optical disk package shown in (1), no projection is provided from the inside of the lower packaging sheet 22 in the figure. Instead, the optical disk a is stored with the surface opposite to the recording surface c adhered to the inner surface of the other wrapping sheet 23, whereby the recording surface c of the optical disk a is separated from the wrapping sheet 22. Packaged in state.

The optical disk package shown in FIG. 8 is substantially common to the optical disk package shown in FIGS. 1 to 5 described above. That is, the packaging sheets 11 and 12 are double of the inner sheets 17 and 19 and the outer sheets 16 and 18, respectively, and the optical disk a is vacuum-packaged in these packaging sheets 11 and 12 together with the reinforcing plate 20. However, in this optical disk package, the inner sheets 17, 19 and the outer sheets 16, 18 are not bonded. In addition, the left sides of the inner sheets 17 and 19 in FIG. 8 are continuous with each other, and the right sides of the inner sheets 17 and 19 are continuous with the outer sheets 16 and 18 in FIG. In FIG.
Reference numeral 7 denotes a connecting portion where the inner sheets 17 and 19 and the outer sheets 16 and 18 are connected. Although not shown, the other two sides except the right side and the left side in FIG.
7, 19 and the outer sheets 16, 18 are not connected,
Are separated.

As shown in FIG. 8A, a cutting line such as a perforation or a V-shaped groove is provided at a portion of the bonding portion 14 outside the connecting portion 27 between the inner sheets 17, 19 and the outer sheets 16, 18. 28 is provided, and by cutting a part of the bonding portion 14 along the cutting line 28, the packaging sheet 11,
The right side in FIG. 8 of FIG. 12 is opened. In the opened state, the inner sheets 17, 19 and the outer sheets 16, 18 are connected at their connecting portions 27. Therefore, as shown in FIG. 8B, when the optical disk a and the reinforcing plate 20 are pulled out, the inner sheets 17, 19 can also be pulled out of the outer sheets 16, 18 from the opening. Conversely, when the optical disk a or the optical disk a and the reinforcing plate 20 are stored in the packaging sheets 11 and 12, the inner sheets 17 and 19 can be stored while being pushed into the outer sheets 16 and 18. This makes it easy to put the optical disk a and the reinforcing plate 20 in and out after opening.

The example of the optical disk package shown in FIGS. 9 and 10 is a modification of the optical disk package shown in FIG. FIGS. 9 (a) and 10 (a) show a state before opening the optical disc package, and FIGS. 9 (b), (c) and FIG.
(B) shows a state after opening the optical disk package. FIG.
(A) and FIG. 10 (a) and FIG. 9 (c) and FIG. 10 (b) show the same state.

In the optical disk package shown in FIGS. 9 and 10, each of the packaging sheets 11 and 12 is formed of a single sheet. , 12 in vacuum. In this packaged state, FIGS.
In the right part of FIG.
2 is stored inside. 9 (a) and 10
In the right part of (a), the edges of the packaging sheet 12 and the lid flap 30 are bonded together. Further, a part of the lid flap 30 and the other wrapping sheet 11 are integrally connected via a connecting portion 27, and a portion closer to the edge is bonded thereto. 9 (a) and 10 (a) show the packaging sheet 12 from the portion where it is bonded to the lid flap 30.
A cutting line 28 is provided on the left side in FIG.
9A and FIG. 10A, a cutting line 33 is provided on the packaging sheet 11 at a portion closer to the right side in FIGS. 9A and 10A than the connection portion 27 with the lid flap 30, that is, a portion near the edge. A cutting line is provided on the lid flap 30 at the same position as the cutting line 33 of the packaging sheet 11, but the cutting line at the center protrudes to the right in FIGS. 9 (a) and 10 (a). This portion becomes the tab 29.

Male and female planar fasteners 32a and 32b are provided near the cutting line 33 of the packaging sheet 11 and on the side closer to the center than the cutting line 33, respectively. The planar fasteners 32a and 32b are long in the front-rear direction of the paper in FIG. When opening the optical disk package, the packaging sheet 12 is first cut along the cutting line 28, and the portion bonded to the lid 30 is peeled off. Thus, the right side of the packaging sheet 12 in FIGS. 9 and 10 is opened. Furthermore, the packaging sheet 11 and the lid flap 30 are
Cut with At this time, the flap 29 at the center of the lid flap 30 is peeled off from the packaging sheet 11.

Further, the lid flap 30 is attached to the packaging sheet 12.
, And put it on the packaging sheet 12. This state is shown in FIGS. 9C and 10B. With the optical disk package opened in this manner, the package can be used as a secondary case for storing the optical disk a. The lid flap 30 of this package is
Can be opened by pinching and folding it toward the packaging sheet 11 side, and the open state can be fixed by attaching the planar fasteners 32a and 32b. This state is shown in FIG. 9B, and the arrow indicates the direction in which the optical disk a is taken out of the packaging sheets 11 and 12. In the illustrated example, the optical disk a is taken out together with the nonwoven bag 21.

FIGS. 11 to 13 show other examples of the optical disk package. FIG. 11 shows a state before opening, and FIG. 12 shows a state after opening. Bonding the packaging sheets 11 and 12 around the accommodating portion 37 accommodating the optical disk a and air-tightly vacuum-packaging the optical disk a is the same as the above-described example. As shown in FIG. 11, cutting lines 32 are provided inside two sides of the bonding section 14. From the V-shaped cuts 36, 36 provided at the ends of the cutting line 32, two sides of the bonding portion 14 are cut along the cutting line 32 so that the optical disk package can be opened as shown in FIG. It has become.

The thus-opened optical disk package can be used as a secondary case in which the optical disk a can be stored and taken out at any time. A fastener 33 is provided inside the cutting line 32 in parallel with the cutting line 32. As shown in FIG. 13, the fastener 33 is provided on the packaging sheet 12 side with a male portion 33 b made of a ridge protruding from the packaging sheet 11 toward the packaging sheet 12 and facing the male portion 33 b. And a female portion 33a having a concave portion into which the male portion 33b can be detachably fitted. By pulling and separating the edges of the packaging sheets 11 and 12, the male part 33b and the female part 33a come off, and the packaging sheets 11 and 12 can be opened. In addition, male part 33
b and the female part 33a are sandwiched by fingers with the fastener 33
The male part 33b and the female part 3
3a is fitted, and the packaging sheets 11, 12 are closed.

FIG. 14 shows an example of the opening of the secondary case 31 from which the optical disk a can be stored and taken out at any time. In this example, a lid flap 34 for opening and closing the opening of the secondary case 31 is fixed by the planar fasteners 34a and 34b. The planar fasteners 34a and 34b are composed of a male and a female, and are bonded by overlapping and pressing.
By pulling the lid flap 34, the lid flap 34 can be separated and opened as shown by a two-dot chain line in FIG. The secondary case 31 has the above-described packaging sheet 11 with the optical disk a stored therein,
12 and vacuum packaged. Packaging sheet 1
After opening 1 and 12, the optical disk a is taken out and used together with the secondary case 31.

FIG. 15 shows another example of the secondary case 31.
This secondary case 31 is formed by bonding two opposing sides of two elastic flexible sheets 31a and 31b, and forming a full width at an intermediate portion of the bonded two sides of one flexible sheet 21b. A cutting line 35 is provided over the entirety. The optical disk a is composed of these two flexible sheets 31a and 31b.
Stored between. The other two sides of the flexible sheet 31a, which are not bonded to the flexible sheet 31b,
As shown in FIG. 5 (b), a rib-shaped stopper 39 which is partially thicker is provided to prevent the optical disk a from falling off when the optical disk a is stored as shown in FIG. 15 (a).

In the secondary case 31, the flexible sheet 31b having the cutting line 35 is placed on the lower side, and the CD deck or the CD
On the tray d of an optical disk drive such as a ROM drive, the center portion of the upper flexible sheet 31a is bent downward, whereby the lower flexible sheet 31b is opened from its cutting line 35. As a result, the optical disk a is placed in the tray d.
Can be set without touching the optical disc a by hand.

FIGS. 16 and 17 show another example of the secondary case 31. FIG. In this example, a joint 38 composed of a protruding male part 38b and a female part 38a having a recess for detachably fitting the male part 38b is arranged along the opening of the secondary case 31. By fitting the male part 38b and the female part 38a, the opening of the secondary case 31 is closed, and the male part 38 is closed.
b and the female portion 38a are separated, so that the secondary case 3
One opening is opened.

In the optical disk package shown in FIGS. 18 and 19, the package after opening also serves as a secondary case.
A pair of packaging sheets 11 and 12 whose peripheral portions are bonded together
The inner bag 44 is stored in the inside. Packaging sheet 11, 1
A cutting line 28 is provided on one side of the bonding portion 14 of the second. The packaging sheets 11 and 12 are opened by cutting one side of the packaging sheets 11 and 12 along the cutting line 28.

The opening of the inner bag 44 is bonded 41 near the opening of the packaging sheets 11 and 12. In the vicinity of the opening portions of the packaging sheets 11 and 12 to which the inner bags are bonded 41, an opening reinforcing plate 40 obtained by folding and folding a loop-shaped metal plate at two places is embedded. This opening reinforcing plate 40
By applying forces in opposite directions from both sides as shown by arrows in FIG. 18, they bend outwardly against their elasticity and open the openings of the packaging sheets 11 and 12. When this force is removed, it is restored by the elasticity of the opening reinforcing plate 40, and the openings of the packaging sheets 11, 12 are closed.

A long plate-like take-out plate 42 is housed inside the inner bag 44, and the tip thereof is bonded to the innermost central portion of the inner bag 42. Opening portions of the packaging sheets 11 and 12 are opened by applying a force to the opening reinforcing plate 40, and in this state, FIG.
9 (b), the inner bag 44 is wrapped in the packaging sheets 11 and 12
Can be pulled out of Further, the inner bag 44 is stored in the packaging sheets 11 and 12 by pushing the take-out plate 42 into the inner bag 44. Therefore, this take-out plate 4
The optical disk a can be stored in or taken out of the inner bag 44 with the insertion or withdrawal of the second into or from the inner bag 44.

FIG. 20 shows examples of the shape of the storage section 37 for storing the optical disk a of the optical disk package and the structure for holding the optical disk a. In each case, the packaging body seals the four sides of the pair of packaging sheets 11 and 12 at the bonding portion 14, and the cutting line 32 is provided inside the bonding portion 14 on the upper side in FIG. is there. By cutting one side of the bonding portion 14 along the cutting line 32, the optical disk package is opened.

FIG. 20A shows a case where a U-shaped storage section 37 is simply provided inside the bonding section 14 of the packaging sheets 11 and 12 in accordance with the size of the optical disk a. FIG.
(B) and (c) show a configuration in which a plurality of dotted laminating portions 46 are further arranged inside the laminating portion 14 so as to receive the periphery of the optical disk a. In FIG. 20B,
The bonding portion 46 has a somewhat long linear shape, and FIG.
Then, the bonding portion 46 has a circular spot shape.

An example of the optical disk package shown in FIG.
A spacer 48 made of a cylindrical sponge is fitted into the clamp hole b of the optical disk a, and is vacuum-packed with a pair of relatively hard packaging sheets 22 and 23 in this state. Reference numeral 25 indicates a portion where the packaging sheets 22 and 23 are bonded. Due to the vacuum packaging, the space where the optical disk a and the spacer 48 are housed has a negative pressure, the spacer 48 contracts firmly, and the optical disk a is firmly held in the packaging sheets 11 and 12.

The example of the optical disk package shown in FIG.
11 is a modification of the package shown in FIGS. 11 and 12. The fastener is opened by pulling apart the packaging sheets 11 and 12 and opened and closed by the movement of a knob 51 instead of the fastener 33 opened and closed by pinching. The difference is that 49 is used. Usability as a secondary case after opening the package is improved.

An example of the optical disk package shown in FIG.
A tray-shaped secondary case 22 having a projection 24 at the center is used, and a clamp hole b of an optical disc a is fitted into the projection 24. In this state, the packaging sheet 11 together with the secondary case 22 is provided.
This is vacuum-packaged at 12. The optical disc a held by fitting the clamp hole b into the projection 24 is held at a position at an intermediate depth of the secondary case 22, and both surfaces thereof are not in contact with the packaging sheets 11 and 12.

In the example of the optical disk package shown in FIGS. 24 to 27, rectangular packaging sheets 11 and 12 are attached to four sides. For example, the packaging sheets 11 and 12 are composed of two pairs of sheets, a pair of inner sheets that are in contact with the optical disc a are made of nonwoven fabric, and a pair of outer sheets that are not in contact with the optical disc a are made of stretchable polypropylene.
A cutting line 54 is provided on the outer front side packaging sheet 12 in FIG. 24 so as to extend upward and across the stored optical disc a.
And a perforated line or a perforated line shallower than the thickness. Rib-shaped reinforcing portions 57a and 57b are provided on both sides along the edge of the cutting line 54, respectively. In addition, a U-shaped tab 56 projects from the center of the upper reinforcing portion 57a in FIG. 24 downward in FIG. FIG. 26 shows details of this part.

Spot-shaped adhesive portions 55a, 55b, 55c, 5c are formed around the central portions of the packaging sheets 11, 12 surrounded by the bonding portions 14 of the pair of outer sheets 11, 12.
5d are arranged. The bonding portions 55a, 55b, 5
5c and 55d are provided by means such as ultrasonic welding, hot stamping, or bonding with an adhesive. Packaging sheet 1
Immediately below the cutting lines 54 in FIGS. 1 and 12 in FIG. In the lower region g of the region f in FIG. 24, the bonding portions 55c and 55d are arranged along a circle 58 having a diameter larger than the diameter D of the optical disk a.

FIG. 2 of the cut surface 54 of the packaging sheets 11 and 12
In the upper area e in FIG.
Is arranged. The bonding portion 55b is different from the other bonding portions 55a,
24 is located above 55c and 55d in FIG. Bonding portions 55a are arranged on both sides of the bonding portion 55b. The bonding portion 55a is formed by bonding the bonding portion 55b with the cutting line 5.
24 is located on the left or right side of FIG. For example, as shown in FIG. 28, the bonding portions 55 a and 55 b have a center 61 a on a line of the object 60 having a diameter of the circle 58 and passing through the bonding portion 55 b, and along a circle 61 having a diameter larger than the diameter of the circle 58. Be placed.
The circle 61 and the circle 58 are arranged such that the bonding portion 55b is a common point. The optical disc “a” is
a, 55b, 55c, and 55d are housed inside and vacuum-packaged. Ideally, the center of the optical disk a is the center of the array 58a of the bonding portions 55b, 55c, and 55d.
The optical disk a is stored so as to coincide with the optical disk a, but the optical disk a may be slightly shifted due to gravity or the like.

As shown in FIG. 24, the cutting line 54 shown in FIG.
Is provided over the entire width of the inner portion of the packaging sheets 11 and 12 surrounded by the bonding portion 53, and the length is L,
The distance from the center of the arrangement of the bonding portions 55 to the cutting line 54 is defined as x. In addition, the packaging sheet 1 is surrounded by the adhesive portion 55.
D is the diameter of the optical disk a stored between 1 and 12, and when the optical disk a is at the center of the array of the adhesive portions 55, l is the length of the optical disk a cut by the cutting line 54, The length of the shorter arc corresponding to the length l is Ar, and the maximum distance of this arc from the cutting line 54 is y.

Here, it is assumed that 2L> l + Ar formula (1), and x and y are almost equal. Under this condition, the length L of the cutting line 54 may be slightly larger than the diameter of the optical disc a. Further, the distance between the opening / closing line 54 and the uppermost one of the lower bonding portions 55c in FIG. 24 is z, and the bonding portion 55c is not provided in the region f between them as described above.

This optical disk package can be opened by pinching the reinforcing portion 57b, the tab 56, and the like, and cutting a part of the front-side packaging sheet 12 along the cutting line 54. In this state, the reinforcing portions 57a and 57b maintain the state where the cutting line 54 is closed due to their elasticity.
Then, as shown in FIG. 27, the reinforcing portion 57a above the cutting line 54, which is obtained by pinching and cutting the tab 56, is turned upward and backward. Then, since the dimensions shown in FIG. 24 have a relationship of 2L> l + Ar as described above, as shown in FIG.
The cut cutting line 54 opens against the elasticity of the reinforcing portions 57a and 57b, and an opening 54 'larger than the portion above the cutting line 54 of the optical disc a is formed therein. As a result, a portion of the optical disk a above the opening / closing line 54 is exposed from the packaging sheet 12. Accordingly, the optical disk a can be taken out from the opening 54 ', and the optical disk a taken out can be housed in the opposite direction.

Referring to FIGS. 29 and 30, approximate conditions when the optical disk a is put in and taken out of the packaging sheets 11 and 12 will be described. It is assumed that the center of the optical disk a coincides with the center 58a of the circle 58, and the radius of the optical disk a and the straight line 6
The angle between 0 and 0 is defined as θ (rad). Of the radii of the optical disc a, those that pass through the intersection between the outer circumference of the optical disc a and the cutting line 54 are set to θ = α. The position of the cutting line 54 is x =
If the position satisfies the condition of y, α becomes π / 3. At this time, l = 2 × R × SIN (π / 3) = (3) ^1/2 × R Ar = 2 × R × π / 3 1 + Ar = [(3) ^1/2 + 2 × R × π / 3] ≒ 3.826R <2D Expression (2) Since the width L of the cutting line 54 is slightly larger than the diameter D so that the optical disc a can be taken out, 1 + Ar <2L. In this case, a part of the optical disc a corresponding to the area e can be exposed. (Hereinafter, a part of the exposed optical disc a is referred to as an exposed part.)

The position of the outer periphery of the optical disk at the position of the angle θ is (x ′, y ′), and one position of the bonding portion 55a is (x ″, y ″). When y ″ = y ′,
One position (x ", y") of the bonding portion 55a needs to approximately satisfy the following two conditions. x ″ = ((D / 2) × SIN (θ) + (D / 2) × θ) / 2 Equation (3) y ″ = y ′ = (D / 2) × COS (θ) Equation (4) Then, from the center 58a of the circle 58 on the straight line 30, (θ / SIN (θ) -1) × (D / 4) × COS (θ) Considering a circle having the center below in FIG. It can be considered that one of the adhesive portions 55a is located on the circumference of this circle. That is, the position of the bonded portion when the center of the circle is set as the origin is (x "", y ""), and the equation (3)
From (4), coordinate conversion of (x ″, y ″) into (x ″ ′, y ″ ″). x ″ ′ = x ″ = ((D / 2) × SIN (θ) + θ × (D / 2)) / 2 = ((1 + θ / SIN (θ)) × (D / 4) × SIN (θ) (6) y ″ ′ = y ″ + ((θ / SIN (θ) −1) × (D / 4) × COS (θ) = ((1 + θ / SIN (θ)) × (D / 4) × COS (Θ) Equation (7) Therefore, the radius of this circle can be considered as (1 + θ / SIN (θ)) × (D / 4) Equation (8).

Further, approximately, on a straight line 60, a circle 58
(Α / SIN (α) -1) × (D / 4) × COS (α) From equation (9), there is a center 61a below in FIG. 24 and the radius is (1 + α / SIN (α)). × (D / 4) When all of the adhesive portions 55a and 55b are present on the circumference of the circle 61 represented by the expression (10), the above condition is satisfied, and the optical disc a corresponding to the area e can be exposed. The optical disk can be taken out. When α = π / 3, (π / 3 × 2 / (3) ^1/2 -1) × D
/4×1/2=0.026D D = 120mm and about 4m
m In addition, when the approximate expression SIN (α) = α is satisfied, the expressions (9) and (10) suffice that the bonding portion 55 a is provided on the circumference of the circle 58.

Under the condition that the position of the cutting line 54 satisfies x <y, considering the equations (1) and (2), the width L of the connecting line 54
Must be larger than the diameter D of the optical disk a. On the other hand, since the exposed portion is large, the clamp hole b and the end of the optical disk can be taken out with a finger, and it is relatively easy to take out. Considering three-dimensional deformation, the bonding portion 5
Since it is necessary to provide an area f where no 5c is provided in the lower half of the optical disk a in FIG. 24, the degree of fixing of the optical disk is deteriorated. Further, since the three-dimensional deformation is large, when the optical disc package of the present invention is frequently opened and closed,
The deterioration of the packaging sheets 11 and 12 tends to increase.

Under the condition that the position of the cutting line 54 satisfies x> y, considering only the condition for exposing a part of the optical disk corresponding to the area e, the width L of the cutting line is equal to the diameter D of the optical disk.
It may be narrower. Therefore, the width L of the cutting line 54 may be slightly larger than the diameter D of the optical disk a so that the optical disk a can be taken out. In addition, the three-dimensional deformation of the packaging sheets 11 and 12 when exposing the exposed portions is reduced, and even if the optical disk package of the present invention is frequently opened and closed, the deterioration of the packaging sheets 11 and 12 is relatively small. On the other hand, since the area of the exposed portion is small, this portion is pinched with a relatively strong force to take out the optical disk a, which makes it relatively difficult to take out.

Further, when the degree of x is larger than y is relatively large, the bonding portion 55a is only located in the upper narrow width region in FIG. 24, and the degree of contribution of the bonding portion 55a to the fixing of the optical disk a is small. Become. When x is relatively smaller than y, the bonding portion 55a is separated from the optical disc a near the cutting line 54, so that the bonding portion 55a contributes less to fixing the optical disc a.

In view of the above, a good balance between the width of the packaging sheets 11 and 12, the ease of removal and the degree of fixation of the optical disk is obtained when x and y are substantially equal.
This case is suitable as a condition of the optical disk package of the present invention. The width L of the cutting line 54, the adhesive portions 55a, 55b, 5
The positions of 5c and 55d and the width Z of the region f where the bonding portions 55c and 55d are not provided are determined as parameters. As long as such a condition is satisfied and the bonding section 55 can stably hold the optical disc a, the bonding sections 55a, 55b, 55
c and 55d are circles 5 having a diameter larger than the diameter D of the optical disc a.
8 can be placed at any position along, for example,
As shown in FIG. 24, it does not have to be symmetrical and may not be equally spaced.

A bonding section 14 of the packaging sheets 11 and 12;
When the bonding portions 55a, 55b, 55c, and 55d are separately formed, the position of the bonding portion 14 is not high, and it is sufficient that the bonding portion 14 has sufficient strength for bonding. Also, the bonding portions 55a, 55b, 55c, and 55d
It is sufficient that there is precision in fixing the adhesive, and the adhesive strength does not need to be high. These two conditions can be set independently. On the other hand, the optical disk a can be fixed only by the bonding section 14, but in this case, the packaging sheet 11,
12 and the positional accuracy sufficient to fix the optical disc a are both required. In the former case compared to the latter, the adhesive portions 55a, 55b, 5
5c and 55d are produced with sufficient positional accuracy under the manufacturing conditions that have little effect on the optical disc a, and the bonding unit 14 that is separated from the optical disc a sets the conditions without considering the influence on the optical disc a. It is made with sufficient adhesive strength. That is, as in the former, the bonding portion 14 and the bonding portion 5
It is better to provide 5a, 55b, 55c, and 55d separately.
The manufacturing conditions are not strict and the manufacturing cost is reduced.

As described above, the optical disk package shown in FIGS. 24 to 27 can be easily opened.
In addition, it can be used as a secondary case in which the optical disk a can be taken out and put in after opening. Especially in this secondary case, when the optical disk a is stored,
Since the optical disk a is entirely covered with the wrapping sheets 11 and 12, and the cutting line 54 forming the opening 54 'is formed so as to cross the optical disk a, there is no fear that the optical disk a may fall off unexpectedly. Absent.

In the above description of the embodiments of the present invention, the optical disc package which is diverted as a secondary case after opening the optical disc package is used as the product package as it is and shipped from the factory. It is also possible to get on a distribution channel. However, more practically, there are many cases where the product packaging is constituted by using an outer packaging made of a plastic film or a reinforcing material such as a plastic plate. These are the packaging sheets 11, 12, which constitute the optical disk package.
It is appropriately selected according to the properties of the material such as 11 and 12, for example, airtightness, watertightness, rigidity, hardness, and the like.

[0067]

As described above, the packaging of the optical disk according to the present invention is very easy to automate, and in particular, the packaging of the optical disk in the automation line can be performed very easily. In addition, this optical disk package can reduce the thickness of the package as compared with the box-shaped storage case, and can improve storage efficiency. Moreover, by vacuum packaging,
The deterioration of the optical disk due to contact with oxygen is eliminated, and a package excellent in the storage stability of the optical disk can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an optical disk package according to the present invention in a partially opened state.

FIG. 2 is a vertical sectional side view showing an example of the optical disk package.

FIG. 3 is an enlarged vertical sectional side view showing an example of the optical disk package with a part thereof omitted.

FIG. 4 is a longitudinal sectional side view showing another example of the optical disk package, with a part thereof omitted;

FIG. 5 is a longitudinal sectional side view showing another example of the optical disk package, with a part thereof omitted.

FIG. 6 is a longitudinal sectional side view showing another example of the optical disk package with a part thereof omitted.

FIG. 7 is a longitudinal sectional side view showing another example of the optical disk package, with a part thereof omitted.

FIG. 8 is a longitudinal sectional side view of an unopened state and an unopened state, showing another example of the optical disk package, with a part thereof omitted;

FIG. 9 is a vertical sectional side view of an unopened state and an unopened state, with some parts omitted, showing another example of the optical disk package;

FIG. 10 is a plan view showing an example of the optical disk package in an unopened state and an opened state.

FIG. 11 is a plan view showing another example of the optical disc package in an unopened state.

FIG. 12 is a plan view showing an example of the optical disc package in an opened state.

FIG. 13 is an enlarged sectional view of a main part taken along line AA of FIG. 12;

FIG. 14 is a vertical sectional side view of an essential part showing an example of a secondary case housed inside an optical disk package.

FIG. 15 is a longitudinal sectional side view showing another example of the secondary case housed inside the optical disk package.

FIG. 16 is a plan view showing another example of the secondary case housed inside the optical disk package.

FIG. 17 is an enlarged sectional view of a main part taken along line BB of FIG. 16;

FIG. 18 is a perspective view showing another example of the optical disc package in an unopened state.

FIG. 19 is a longitudinal sectional side view showing an example of the optical disc package in an unopened state and an unopened state with a part thereof omitted.

FIG. 20 is a plan view showing another example of the optical disc package in an unopened state.

FIG. 21 is a longitudinal sectional side view showing another example of the optical disk package, with a part thereof omitted.

FIG. 22 is a plan view showing another example of the optical disc package in an unopened state.

FIG. 23 is a longitudinal sectional side view showing another example of the optical disc package, with a part thereof omitted;

FIG. 24 is a plan view showing another example of the optical disc package in an unopened state.

FIG. 25 is a perspective view showing an example of the optical disk package in an unopened state.

FIG. 26 is an enlarged central longitudinal cross-sectional view of an essential part in an unopened state showing an example of the optical disk package.

FIG. 27 is a perspective view showing an example of the optical disk package, in which the package is opened and an ejection opening is opened.

FIG. 28 is a plan view showing a positional relationship of each part in the example of the optical disc package.

FIG. 29 is a plan view showing a positional relationship between components in the example of the optical disc package.

FIG. 30 is a plan view showing a positional relationship of each part in the example of the optical disk package.

FIG. 31 is a partially exploded perspective view showing an example of a plastic case for storing an optical disk.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Packaging sheet 12 Packaging sheet 14 Lamination part of packaging sheet 33 Cutting line 36 Cut 50 Non-adhesion part a Optical disk

Claims (11)

[Claims] An optical disk (a) is wrapped in a package, wherein the entire optical disk (a) is a packaging sheet (11),
While being airtightly covered with (12), air is removed from the inside of the wrapping sheets (11) and (12) containing the optical disk (a), and the wrapping sheets (11) and (12) are opened. An optical disc package characterized by having means. 2. The packaging sheets (11) and (12) are at least a pair of sheets arranged on both main surfaces of the optical disk (a), and the packaging sheets (11) and (12) are 2. The optical disk package according to claim 1, wherein the optical disk package is bonded at a bonding portion (14) around (1). 3. The distance g between the bonding portion (14) of the packaging sheets (11) and (12) and the peripheral portion of the optical disk (a) is:
The optical disk package according to claim 2, wherein the optical disk is substantially equal over the entire circumference of the optical disk (a). 4. The difference between the heights δ ₁ and δ ₂ of the surfaces of the packaging sheets (11) and (12) sandwiching the optical disk (a) and the bonding portion (14) is determined by the difference between the packaging sheet (11) and And (12) are substantially equal on both sides.
4. The optical disk package according to any one of 3. 5. A pair of packaging sheets (11), (12)
The optical disk (a) is stored in a portion surrounded by the bonding portion (14).
The optical disk package according to claim 2, wherein a cutting line (54) is provided in (2) so as to cross a position shifted from the center of the stored optical disk (a). 6. The length of the cutting line (54) is L, the length of the cutting line (54) cutting the optical disc (a) is 1 and the length of the arc of the length l of the optical disc a is The optical disk package according to claim 5, wherein 2L> l + Ar, where Ar is satisfied. 7. The optical disk package according to claim 1, wherein at least the outermost sheet constituting the packaging sheets (11) and (12) is made of stretchable polypropylene. 8. A wrapping sheet (11), (12) covering at least a surface of the optical disk (a) on which recording light and / or reproduction light is incident has a light shielding property against recording light and reproduction light. The optical disk package according to any one of claims 1 to 7, wherein: 9. The optical disk (a) is housed in the wrapping sheets (11) and (12) in a state where the optical disk (a) is overlapped with a reinforcing plate (20) which is less flexible than the optical disk (a). An optical disk package according to any one of claims 1 to 8. 10. The optical disk (a), comprising: a reinforcing plate (20);
The optical disk package according to claim 9, wherein the optical disk package is superimposed on a side covering a surface on which the recording light and / or the reproduction light is incident, and has a light shielding property with respect to the recording light and the reproduction light. 11. The packaging sheet (11) or the reinforcing plate (20) in contact with the recording light and / or reproduction light incident surface of the optical disk (a) has a lower hardness than the surface of the optical disk (a). The optical disk package according to any one of claims 1 to 10, wherein: