JPH07137783A - Case for cassette tape - Google Patents

Abstract

(57) [Abstract] [Purpose] To disclose a cassette tape case that is easy to store and take out cassette tape, prevents rotation of the hub, is not bulky, is lightweight and easy to print, and is suitable for environmental protection. . [Structure] A flat paper case 1 having a substantially similar shape to a cassette tape 2 and a locking piece 3 having locking projections 7 for restricting rotation of a hub hole 6 of the cassette tape 2 are separately formed. Then
A cassette tape case characterized in that a locking piece 3 is fixed to a paper case 1, and insertion projections 7, 7 are projected into the paper case 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper cassette tape case which does not require a plastic case.

[0002]

2. Description of the Related Art Conventionally, as a cassette tape case, when a box-shaped case body is formed of transparent plastic, a cross-shaped projection to be inserted into a hub hole of the cassette tape is formed on the bottom surface of the case body. At the same time, small round protrusions are formed on both side walls of the opening of the case body, and a lid that closes the opening of the case body is provided with an arm extending to both side walls of the opening of the case body. It is known that the small protrusions of the above-mentioned type are provided with holes that are rotatably engaged.

However, such a cassette tape case made of plastic has a problem that it takes time and effort to open and close the lid and grasp the case when taking out the case.

Therefore, the publication of Japanese Utility Model Publication No. 61-15017 discloses a "cassette tape case magazine".

This "cassette tape case magazine"
Is for one-touch loading and unloading of the cassette tape, and it has a pair of flexible protrusions that engage with the rotation shaft holes of the cassette tape inside the plastic case that houses the cassette tape. A slender swaying plate is provided on the narrow side wall of the slab, and the center of the slender swaying plate is fixed with a pin. It is made to engage. The end of the rocking plate is exposed to the outside of the plastic case, and a spring is provided on the back wall of the plastic case into which the cassette tape is inserted.

When the cassette tape is housed in the plastic case against the biasing force of the spring, the end of the rocking plate is engaged with the opening edge of the cassette tape where the tape runs, and the cassette tape is stored in the plastic case. To be done. Push the rocking plate from the outside of the plastic case, and the cassette tape will be pushed by the rocking plate and the end of the rocking plate will be disengaged from the opening edge for tape running, so that the cassette tape will come out. Has become.

[0007]

However, in such a conventional cassette tape case, since the number of parts of the plastic case is large and the mechanism is complicated,
In addition to being high in cost and weight, it is inconvenient for storage and transportation due to its bulkiness, and it is made of plastic, so that it becomes a plastic waste when the cassette tape case becomes unnecessary.

Further, when the cassette tape is taken in and out, the case itself has almost no elasticity, so that the engagement between the rotary shaft hole and the protruding portion must be performed within a slight clearance between the case and the cassette tape. , The operation was very forceful and complicated.

[0009]

An object of the present invention is to have a simple structure, yet to prevent the hub of the cassette tape from rotating when the cassette tape is held stationary, so that the cassette tape can be easily stored and taken out. An object of the present invention is to disclose a cassette tape case which has a small volume, is lightweight, is easy to print, and is suitable for environmental protection without using plastic as much as possible or at all.

[0010]

In order to solve the above problems, a cassette tape case according to claim 1 of the present invention has a flat box shape which is substantially similar to a cassette tape, and has a narrow side. A paper case for inserting and removing the cassette tape from the opening of the cassette tape, and a pair of locking projections that are inserted into the inside of the hub to regulate rotation of the pair of hubs for tape tape winding of the cassette tape. The locking tape is formed separately from the narrow width locking piece, and the locking tape is attached to the paper case in accordance with the positions of the pair of hubs when the cassette tape is stored in the paper case. Is fixed parallel to the longitudinal direction, and the pair of locking projections are projected into the paper case.

A cassette tape case according to a second aspect is the cassette tape case according to the first aspect, in which the locking piece is substantially the same size as the planar shape of the locking piece on the flat surface portion of the paper case. Forming a recess having a depth corresponding to the wall thickness of
The recess is formed with a slit into which the pair of locking projections of the locking piece are inserted, and the pair of locking projections is projected into the case from the slit.

The cassette tape case according to claim 3 is the cassette tape case according to claim 1 or 2, wherein the cassette tape is thin on the inner wall surface of the paper case when the cassette tape is inserted. Is formed, and a step portion is formed to regulate the slide of a portion of the cassette tape having a large thickness.

A cassette tape case according to a fourth aspect is the cassette tape case according to any one of the first to third aspects, wherein a pair of wide side surfaces and a pair of narrow side surfaces forming the paper case are formed. Among the parts, an opening for inserting the cassette tape is provided on one of the wide side surfaces.

A cassette tape case according to a fifth aspect of the present invention is the cassette tape case according to any one of the first to fourth aspects, wherein the pair of locking projections of the locking pieces are formed of a member that is not plastically deformable. Further, it is characterized by having a bulge shape.

A cassette tape case according to a sixth aspect of the present invention is the cassette tape case according to any of the first to fifth aspects, wherein the locking piece is made of paper and the locking piece is formed of the hub. It is characterized in that it has parallel slits having a width corresponding to the inner diameter, and the locking projection is formed by bending a band-shaped portion between the parallel slits.

The cassette tape case according to claim 7 is the cassette tape case according to any one of claims 1 to 6, further comprising a cover having the same width as the opening of the paper case. An index portion that is substantially the same size as the planar shape of the paper case, a closing portion that is substantially the same size as the opening that can close the opening, and a locking portion that faces the index portion and is inserted into the case. Are formed in series, and an opening portion for covering the closing portion of the cover from the outside and fixing it to the opening edge portion is formed at the opening edge portion of the paper case.

[0017]

According to the cassette tape case of the first aspect of the present invention, since the paper case has elasticity, the locking projection is provided when the cassette tape is taken in and out from the opening of the narrow side portion. The bulging part. Therefore, as the material of the locking piece, a flexible elastically deformable material or a non-deformable material can be selected, and the cassette tape can be easily taken in and out.

According to the cassette tape case of the second aspect of the present invention, since the recess is formed even though the locking piece is provided outside the paper case, only the locking piece is made of paper. It does not protrude from the surface of the case by the thickness of the locking piece. Therefore, even if a large number of paper cases are stacked, they do not collapse.

According to the cassette tape case of the third aspect of the present invention, since the insertion position of the cassette tape is determined by the step portion of the paper case, the engagement pieces are engaged with the pair of hubs when the cassette tape is inserted. It is inserted without the stop projection coming off.

According to the cassette tape case of the fourth aspect of the present invention, when the cassette tape is put in and out from the opening of the wide side portion, the number of the hubs from which the locking projections project is one. Is smooth in and out of
There is little pain in the locking projections of the locking pieces, the case, and the cassette tape.

According to the cassette tape case of the fifth aspect of the present invention, the durability of the locking projection is improved and the paper case is deformed, so that the cassette tape can be smoothly taken in and out.

According to the cassette tape case of the sixth aspect of the present invention, since the locking projections of the locking pieces are formed by bending the strip-shaped portions between the parallel slits, they can be stored in a flat stack. No plastic waste is generated at the time of disposal.

According to the cassette tape case of the seventh aspect of the present invention, when the cassette tape is stored in the paper case, the paper case is elastically deformed so that the respective locking projections are engaged with the respective hubs. The rotation of the hub is prevented. After that, when the index portion and the locking portion of the separate cover are inserted into the paper case, the opening of the paper case is closed. Further, when the closing portion is fixed to the opening edge portion by the opening portion, the unopened state of the cassette tape is secured. At the time of opening, the cover can be pulled out only by tearing the opening, so that the cassette tape can be easily taken in and out, and various prints can be made on the outside of the cover, so that the decorativeness is enhanced.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A cassette tape case according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a cassette tape case according to the first embodiment of the present invention.

In the present invention, the cassette tape case is an external case for storing the cassette tape, and does not indicate a plastic housing for storing the tape by winding the tape around the hub. In the embodiments described below, the cassette tape case is simply referred to as a case.
FIG. 2 is a sectional view showing a state where the cassette tape is stored in the case, and FIG. 3 is a sectional view showing a state where the cassette tape is pulled out from the case.

1 to 3, reference numeral 1 is a case, reference numeral 2 is a cassette tape, and reference numeral 3 is a locking piece. The cassette tape 2 exemplifies a commercially available music recording / playback tape. The case 1 has a flat box shape similar to the cassette tape 2 and is provided with an opening 4 on a side portion having a narrow width with respect to the longitudinal direction of the cassette tape 2, and the cassette tape 2 can be inserted and removed through the opening 4. It is supposed to do. The locking piece 3 is adhesively fixed to the inner surface of the case of the flat surface portion 5 having substantially the same shape as the cassette tape 2 of the case 1. In the cassette tape 2, a portion facing the magnetic head side of the cassette player has a thick portion, and a portion facing the thick portion has a thin portion slightly larger than the width of the tape. It has a height h larger than the thick portion so that the cassette tape 2 does not loosen.

The locking piece 3 is made of plastic in this embodiment, but may be paper. The locking piece 3 is elongated and thin, and is 1 mm larger than the inner diameter 8 of the hub holes 6 and 6 so as to engage with the gear-shaped projections projecting inside the hub holes 6 of the cassette tape 2. It has a small width of about 2 mm and is elongated in the insertion direction of the cassette tape 2. A pair of locking projections 7, 7 are projected at substantially right angles on both ends of the locking piece 3. The locking piece 3 is attached so that when the cassette tape 2 is stored in the case 1, the locking projections 7, 7 are inserted into the pair of hub holes 6, 6. The locking projections 7 and 7 have a height such that they can be inserted into the inside of the hub holes 6 and 6 for winding the tape, and the tips of the locking projections 7 and 7 rotate the hub holes 6 and 6. Is formed in a semicircular shape having a diameter slightly smaller than the inner diameter 8 of the hub holes 6, 6 so as to be able to stop.

Reference numeral 9 is a semicircular cutout formed in the edge of the opening 4 of the case 1 so that the cassette tape 3 stored therein can be easily taken out.

When inserting the cassette tape 2 into the case 1, when the cassette tape 2 is pushed into the case 1,
The locking projections 7, 7 are bent toward the inner side of the case 1 and fall down, and the flat surface portion 5 of the case 1 is elastically deformed upward as shown by the broken line in FIG. Enters the inside of the hub holes 6 and 6, and the cassette tape 3 is inserted and fixed. Further, since the locking projections 7, 7 enter the hub holes 6, 6, rotation of the hub is restricted, loosening of the tape due to rotation of the hub is prevented, and the cassette tape 2 itself also locks the projections 7, 7. Will not fall off from the opening of the case 1. Further, when the cassette tape 2 is taken out, as shown in FIG. 3, by pulling by putting a finger on the end of the cassette tape 2 exposed from the notch 9, the locking projections 7, 7 are deformed toward the opening 4 side. Then, the hub holes 6 and 6 are disengaged from the locking projections 7 and 7, the plane portion 5 of the case 1 is deformed upward as shown by the broken line in FIG. 3, and the cassette tape 2 is taken out.

As described above, according to the case 1 of the first embodiment, the cassette tape 2 does not move in the case 1 and the rotation of the hub is prevented even though the structure is very simple. Further, since the case 1 itself has a small volume, is lightweight, is easy to print, and uses plastic as little as possible, it is suitable for environmental protection. Further, when the cassette tape 2 is taken in and out, the portion provided with the locking projections 7, 7 swells, so that the cassette tape 2
It is easy to take in and out, and as the material of the locking piece 3, not only flexible and elastically deformable paper, plastic but also non-deformable paper and plastic can be selected.

FIG. 4 shows a case according to the second embodiment of the present invention, and reference numeral 10 is a case. In this case 10, a rectangular recess 12 is formed on a flat surface portion 11. The recessed portion 12 is a portion where the thin portion of the cassette tape 2 shown in FIG. 1 is located and is formed so as to include immediately above the hub holes 6, 6. The bottom surface of the recess 12 is flat and has a depth corresponding to the thickness of the locking piece 13. The locking piece 13 has the same structure as the locking piece 3 of FIG. 1 and includes locking projections 16 and 16, but the bonding portion of the locking piece 13 is set outside the case 10. The locking projection 1 of the locking piece 13 is provided in the recess 12.
Slits 17 and 17 into which 6 and 16 are inserted are formed, and the locking projections 16 and 16 are inserted into the slits 17 and 17 and protrude into the case 10. Semicircular cutouts 14, 14 are formed at the opening edge of the case 10.

In this case 10, the deformation of the locking piece 13 when the cassette tape 2 is taken in and out of the case 10 and the deformation of the case 10 are the same as those of the case 1, but the locking piece 13 of the recess 12 is the case 10. Since the height is the same as that of the flat surface portion 11, even if the case 10 is stacked, the case 10 is not likely to collapse, which is excellent in storage. Other actions are first
Since it is similar to the embodiment, its description is incorporated.

5 to 6 are development views of the case 20 of the third embodiment of the present invention, and the dotted line portion in FIG. 5 is a bending line. The case 20 is formed so that flaps 21, 21 for closing the insertion opening of the cassette tape 2 can be cut off. The flaps 21, 21 are formed by assembling and adhering the case 20 in a box shape to store the cassette tape 2 and then sealing it. When the cassette tape 2 is used, the flaps 21,
It is adapted to be bent along a dashed-dotted line 21a and a dotted line portion 21b of 21.

Similar to the case 10, a rectangular recess 23 having a depth corresponding to the thickness of the locking piece 24 is formed on the plane portion 22, and slits 26, 26 are formed on the bottom surface of the recess 23.

Locking projections 25, 25 are formed at right angles on both ends of the locking piece 24 shown in FIG. The locking piece 24, which is initially formed separately from the case 20, is made of plastic such as polyvinyl chloride in this embodiment. In this case 20 as well, the locking piece 24 is adhesively fixed from the outside of the case 20, but it goes without saying that the positions of the slits 23, 23 correspond to the positions of the hub holes 6, 6.

The case 20 is assembled in a box shape, and then the cassette tape 2 shown in FIG. 2 is inserted into the case 20. When the flaps 21 and 21 are bent along the bending line, the case 20 is completely sealed. It will be in a state of being. At the time of use, the cassette tape 2 can be taken out by separating the flaps 21, 21 and the portion projecting into the flat surface portion 22 along the alternate long and short dash line 21a, and at the same time, a cut hole for finger hanging can be formed. Become. When the cassette tape 2 is inserted into the case 20 again, the locking projections 25, 2 of the locking pieces 24, as in the first and second embodiments.
5, the case 20 is elastically deformed, the locking projections 25, 25 enter the hub holes 6, 6 of the cassette tape 2 to prevent the cassette tape 2 from falling off, and the rotation of the hub is restricted.

7 and 8 show a fourth embodiment of the present invention. In these drawings, reference numeral 30 is a case, 31
Is a development view of the case. In this embodiment, as shown in FIG. 8, the cassette tape 2 shown in FIG.
Is characterized in that a step portion 32 for determining the insertion posture of is formed. The step portion 32 is provided in a corner portion of the case 30 where the thin wall portion of the cassette tape 2 is located, and extends in the longitudinal direction of the case 30. Therefore, the development view 31 of the case 30 includes the bent portion 33 that forms the step portion 32. In a developed view 31 of the case 30, 34 is a slit into which the locking piece 24 is inserted, 35 is a recess having a flat bottom surface, 36 is a separable flap, and 37 is a cut line of the flap 36. The other configuration is the same as that of the case 20 of the third embodiment, and the locking piece 24 of the third embodiment is inserted, so that the description thereof will be incorporated.

According to this embodiment, in addition to the effects of the above-mentioned first to third embodiments, the insertion attitude of the cassette tape 2 is determined, so that the alignment between the locking projection 25 and the hub holes 6, 6 is ensured. Therefore, it is possible to prevent the cassette 30 from being inserted in the wrong direction because the inside of the case 30 cannot be seen.

9 to 10 show the construction of the case of the fifth embodiment of the present invention.

In FIGS. 9 to 10, the case 40 has an opening 41 in the wide side portion, and the cassette tape 2 shown in FIG. 2 is designed to be taken in and out from the long side of the case 40. In this embodiment, the opening 41 is cut out to reach the vicinity of the hub holes 6, 6 corresponding to the flat portion 42 of the case 40, and the thick portion of the cassette tape 2 is opened in the cutout portion 41a. The cassette tape 2 is located at the side of 41, and the cassette tape 2 is inserted with the thin portion facing inward. The opening 42 is closed by a flap 43 that forms the long side of the case 40. A locking piece 44 as shown in FIG. 11 is adhesively fixed to the opening edge portion of the flat surface portion 42 in the case.

Needless to say, the locking piece 44 is formed separately from the case 40 and fixed to the position where the hub holes 6, 6 are housed, but the locking piece 44 is formed in the longitudinal direction of the case 40. Since the locking projections 45, 45 parallel to the locking projections 45 are provided, even if the cassette tape 2 is inserted from the long side, the locking projections 45, 45
5 is less painful. Further, since the thick portion is located in the cutout portion 41a of the flat portion 42, it is possible to call attention to insert the cassette tape 2 with the thin portion first.

The flap 43 extends from the flat surface portion 46 facing the flat surface portion 42, and has a hinge portion 43a and a narrow width portion 43.
b, a large portion 43c. Hinge part 4 of flap 43
Cut lines 43d and 43d are formed on both sides of 3a,
The hinge portion 43a is adapted to be opened and closed via a bending line 43e.

A slit 48 is formed at the boundary between the flat portion 42 and the narrow portion facing the narrow portion 43b of the case 40, into which the insert piece 47 formed at the tip of the wide portion 43 is inserted. A concave portion 49 into which the insertion piece 47 is inserted is formed at a portion facing the slit 48.

In the case 40 of this embodiment, in addition to the effect of the above embodiment, the flap 43 is largely opened by the hinge portion 43a, so that the cassette tape 2 can be smoothly taken in and out, and the locking projection 45 of the locking piece 44 can be obtained. Also, the case 40 and the cassette tape 2 are less damaged.

FIG. 12 shows a case according to the sixth embodiment of the present invention, and this case 50 is shown in FIGS.
This corresponds to a modified example of the case 40 shown in FIG. The case 50 has a simpler configuration than the case 40. A flap 51 corresponding to the flap 43 has a small width portion 51a and a flat surface that are bent from the ridge line portion of one flat surface portion 52 of the pair of flat surface portions. The flat portion 53 is in contact with the flat portion 53 facing the portion 52, and the flat portion 53 is provided with a cutout portion 54 for positioning the thick portion of the cassette tape as in the case 40.

On the inner surface of the cutout portion 54 of the flat portion 54, a locking piece 55 of the same type as the locking piece 44 of FIG. 9 and formed separately from the case 50 is adhered. In this case 50, the insertion piece 47, the slit 48, and the recess 49 of the case 40 of FIG. 9 are simplified, but the cassette tape 2 is inserted from the side of the long side of the case 50.
Since the locking piece 55, the cassette tape 2, and the case 50 are less damaged, the locking piece 55 can prevent the cassette tape 2 from falling off even if the structure is simplified.

FIG. 13 shows a seventh embodiment of the present invention. A case 60 of this embodiment is formed of a sheet of paper, and the case 60 includes a lower case portion 61 and an upper lid. And a part 62. The lower case portion 61 has a flat surface portion 63 on which the cassette tape 2 is placed.
Short side wall portions 63a and 63a are erected on both left and right sides of the flat side portion, and long side wall portions 63b and 63c are erected on the front and rear sides of the plane portion 63.
The long side wall portion 63b is separated from the short side wall portions 63a and 63a.

The upper lid portion 62 is provided with a lid portion 64 that is bent in the middle and an elongated flat portion 65, and the short side wall portion 6 is provided around the lid portion 64.
4a, long side wall portions 64b are erected, and short side wall portions 65a are erected on the left and right of the elongated flat surface portion 65. The flat surface portion 65 and the long side wall portion 63c of the lower case portion 61 are connected, but the short side wall portions 64a and 65a are separated from each other. Lid 6
4 is bendable from the boundary with the elongated flat portion 65, and a locking piece 66 that engages with the hub holes 6 and restricts rotation is fixed to the wall surface inside the case of the lid portion 64. ing.

The locking piece 66, which is formed separately from the case 60, is made of plastic and is fixed along the longitudinal direction of the case 60. Locking protrusions 67, 67 that engage with the hub holes 6, 6 are provided on both sides of the locking piece 66. Here, the locking protrusions 67, 67 are hollow protrusions having a truncated cone shape.

Opening 6 of cassette tape 2 of case 60
8 is a long side wall portion 63b and short side wall portions 63a, 63 that can be opened and closed.
a and a lid portion 64, the cassette tape 2 can be easily inserted by opening the lid portion 64 and tilting the long side wall portion 63b toward you. When the lid 64 is closed after the cassette tape 2 is inserted, the locking protrusions 67, 67 are inserted into the hub holes 6, 6
The cassette tape 2 itself and the hubs 2 and 2 are fixed by being press-fitted in. As a result, the lid 64 can be maintained in the closed state. This is also effective when resealing after opening.

According to the case 60, in addition to the effect of the above-described embodiment, the cassette tape 2 can be stored smoothly, and the locking piece 66 is not bent, so that the locking piece 66 is not easily deformed. The material can be used.

17 to 25 show modified examples of the locking pieces fixed to the cassette tape cases of the first to seventh embodiments.

The locking piece 70 of the modification 1 shown in FIG. 17 is made of plastic, and plate-shaped locking projections 71 are integrally formed on both sides of a rectangular elongated base plate.

The locking piece 72 of the second modification shown in FIG. 18 is made of plastic or pulp mode, and a pair of hollow locking projections 73 are integrally formed on both sides of a rectangular elongated base plate.

19 and 20 show a locking piece 74 of the third modification, and this locking piece 74 is made of paper, fiber board or plastic. The locking piece 74 is integrally formed with hook-shaped locking protrusions 75, 75 protruding upward to the left and right of a rectangular base plate. Locking protrusion 7
In the case of fiberboard, 5 and 75 are deformed by pressing, and in the case of plastic, injection molding is performed.

21 and 22 show a locking piece 76 of the modified example 4, and this locking piece 76 is made of fiberboard or paper. The locking piece 76 is composed of base plates 78, 79 and 79 which are divided into three parts, and locking projections 77 and 77 which connect them.

Base plates 78, 79, 79 and locking projection 7
7 and 77 are obtained by bending the locking protrusions 77 and 77 of a flat sheet of paper or fiberboard into a triangular shape and placing the intermediate base plate 78 on the left and right base plates 79 and 79 and adhering them. Is.

23 and 24 show a locking piece 80 according to the fifth modification, and the locking piece 80 is made of paper, plastic or fiber board. This locking piece 80 has an opening 8 inside the elongated rectangular base plate.
1, 81 are provided, and the locking projections 82, 82 are tilted upright at the edge of the opening. Locking projections 82, 82
Grooves 83, 83 are formed at the tip of the
The twist of the tip of No. 2 is allowed. The inclination and twist of the locking projections 82 weaken the deformation force when the gear-shaped projections of the hub holes 6, 6 interfere with the locking projections 82, 82.

25 and 26 show the first to seventh embodiments.
13 shows Modification 6 of the locking piece of the embodiment. The locking piece 801 is formed of an elongated paper piece, and the width of the locking piece 801 is set to be slightly smaller than the inner diameter of the hub holes 6 of the cassette tape 2. Further, locking protrusions 802 are formed on the left and right side portions of the locking piece 801. The locking protrusions 802 are bent and then attached to each other or simply stacked so as to project.
The corner portion 802a at the tip of 2 is rounded and chamfered so that it can be easily fitted into the hub hole 6.

The front and back lengths L and R of the locking projection 802 are the same, and when the locking projection 802 tries to fall from the right side to the left side, for example, the right side surface of the locking projection 802 tends to shrink. On the other hand, a synergistic action is exerted in which the left side surface of the locking projection 802 tends to extend. As a result, the locking projection 802 is more flexible than when it is in the state of one sheet, and the standing state at a right angle is maintained.

This locking piece 801 is the locking piece 8 of the fifth modification.
13 and the inside of the plane portion 5 of the case 1 of FIG.
It is adhered to the inside of the lid 64 of the case 60 shown in FIG. When it is adhered to the case 1 of FIG. 1, when the cassette tape 2 is inserted into the case 1, the locking projection 802 of the locking piece 801 falls down, but since the synergistic effect described above improves the flexibility, The locking protrusion 802 stands up and fits in the hub hole 6 of the cassette tape 2. When the cassette tape 2 is taken out from the case 1, the locking projection 802 is tilted again to be detached from the hub hole 6, but when the cassette tape 2 is detached from the case 1, the cassette tape 2 stands up at a right angle.

FIG. 27 is a perspective view of a locking piece of modification 7 of the first to seventh embodiments.

A pair of slits 811 and 811 extending in the longitudinal direction are formed at both ends of the locking piece 810. The width of the slits 811, 811 is set to be slightly smaller than the width of the hub holes 6, 6 of the cassette tape 2. The notches of the slits 811 and 811 extend a distance substantially equal to the distance between the centers of the pair of hub holes 6 and 6. The part between the slits 811, 811 is the bent part 812, 8
Twelve. The bent portions 812, 812 are fixed to the upright bent portion where the right and left surfaces rise by the same distance, and the case 1 of FIG. 1, the case 40 of FIG. 9, the case 50 of FIG. 12, or the lid 64 of the case 13 of FIG. And an adhesive bending part. The upright folds are glued together or simply overlaid to form locking projections 813. Corners 813a, 813a at the tip of the locking projections 813, 813
Are rounded and chamfered so that they can be easily fitted into the hub holes 6, 6.

Since the locking projections 813, 813 have flexibility that is more resilient to tilting in the left-right direction than the case of a single piece, as in the case of the sixth modification, it is particularly adhered to the inner surface of the case 1. When the cassette tape 2 is completely inserted into the case 1, it stands up and fits into the hub holes 6 and 6. Further, when the cassette tape 2 is taken out from the case 1, it stands upright again in the case 1.

FIG. 28 shows a locking piece 84 according to the modified example 8.

The locking piece 84 is formed of plastic or pulp mold, and hollow locking projections 85, 85 are integrally formed on the left and right sides of a rectangular elongated base plate, the upper ends of which are spherical or rounded. Has been done.

29 and 30 show the cassette tape 2 when the locking plate 84 of FIG. 25 is fixed to the case 1 of the first embodiment.
The case 1 is made of paper even if the locking plate 84 is made of a material that does not deform, so that the cassette tape 2 faces the locking plate 84 when the cassette tape 2 is taken in and out. The flat portion to be deformed can be deformed. Furthermore, the locking plate 8
Since the upper end of 4 is spherical, the cassette tape 2 can be smoothly taken in and out.

FIG. 31 shows a modified example 1 of the case of the seventh embodiment shown in FIG. 13. In the modified example 1, the lid portion 85 corresponds to the upper lid portion 62 of the case 60 of FIG. Is. The lid has a case outer wall portion 85a and a case inner wall portion 85b formed of one sheet of paper, and a peripheral wall portion 86 is provided upright on the periphery. The case inner wall portion 85b is further divided into a rectangular piece A and a rectangular piece B according to the portion where the hub holes 6 and 6 of the cassette tape 2 are located. The rectangular pieces A and B are the inner diameters of the hub holes 6 and 6. They are connected by a bent piece portion 87 having a considerable width. The bent piece portion 87 constitutes a locking projection of the locking piece, which is a constituent feature of the invention, and is formed in a pair in accordance with the interval between the hub holes 6, 6, and is bent to form a triangle. Has been done. The rectangular pieces A and B are adhered to the case outer wall portion 85a, respectively.

If this lid portion 85 is applied to the upper lid portion 62 of the case 60, the locking piece 66 need not be formed, and the case 6
Since 0 can be formed entirely of paper, it exhibits excellent effects such as cost reduction, storage volume reduction, elimination of plastic waste, improvement of appearance quality by decorative printing inside and outside the case, and promotion of weight reduction.

FIG. 32 is similar to the lid portion 85 of FIG.
The modification 2 of the upper lid part 62 of 7th Example shown in 3 is shown. The lid portion 88 includes a case outer wall portion 88a and a case inner wall portion 88b.
Although it is formed by bending and, since there is no peripheral wall portion, when applied to the case 60 of the seventh embodiment, the long side wall portion 63b and the short side wall portion 63a of the case 60 of the seventh embodiment are formed. , 63
Do not separate from a. The case inner wall portion 88b includes a rectangular piece A,
B and C, and the rectangular pieces A and B and the rectangular pieces B and C are connected by bending pieces 89 and 89.
The bending pieces 89, 89 constitute the locking projections of the locking piece of the present invention, and are inserted into the hub holes 6, 6 of the cassette tape 2 that is folded and housed in the mountain direction. According to this lid portion 85, the structure is simpler than that of the lid portion 85 of FIG.

FIG. 33 shows the case 6 of the seventh embodiment of FIG.
The modification 3 of the locking piece 66 applied to 0 is shown.

This locking piece 90 is provided with two sets of parallel slits 91, 91 having a width corresponding to the inner diameter of the hub hole 6 of the cassette tape 2 on the long side of a rectangular card made of paper. A portion between the parallel slits 91, 91 is bent in the mountain direction to form a locking projection 92. The locking piece 90 is fixed to the lid portion 64 of the case 60 shown in FIG. 13 similarly to the locking piece 66. In this case, the lid portion 64 of the case 60 is not configured to be folded at the intermediate portion, but is formed in a single shape as in the case shown in FIG. 9 or 12.

FIG. 34 shows the case 6 of the seventh embodiment of FIG.
The modification 4 of the locking piece 66 applied to 0 is shown.

The locking piece 93 is provided with a pair of parallel slits 94, 94 having a width corresponding to the inner diameter of the hub hole 6 on opposite short sides of a paper rectangular card. A portion between the slits 94, 94 is bent in the mountain direction to form a locking projection 95. This locking piece 93 is shown in FIG.
It is fixed to the lid 64 of the case 60 shown in FIG. In this case, the lid portion 64 of the case 60 is not configured to be folded at the intermediate portion, but is formed in a single shape as in the case shown in FIG. 9 or 12.

FIG. 35 shows the case of the eighth embodiment of the present invention.

In this embodiment, the paper case 100 is
Similar to the case 10 shown in FIG. 4, an opening 101 is formed at the short side of the box, and the cassette tape 2 is inserted through the opening 101. Opening 101
A notch 102 for extraction is formed at each of the opening edges.

In the vicinity of the central portion of the rectangular flat surface portion 103 of the case 100, a concave portion 105 for arranging the locking piece 104 is formed. The depth of the recess 105 is equivalent to the thickness of the locking piece 104. Slits 106 are provided at both ends of the recess 105.
Are formed respectively, and the locking piece 10 is formed in the slit 106.
The locking protrusions 107 of 107 are inserted.

The engaging projection 107 has a split groove 1 extending in the vertical direction.
No. 08 is formed to allow the locking projection 107 to be twisted and contracted when the locking projection 107 is inserted inside the hub hole 6.

In the opening 101 of the case 100, the index card 1 as a cover having the same width as the opening 101 is provided.
09 is inserted. The index card 109 is a separate body from the case 100, and the index portion 11 is capable of describing characters and the like having a length corresponding to the length of the cassette tape 2.
0, a closing portion 111 that closes the opening portion 101, and a locking portion 112 that is inserted into the case 100.
Since the cassette tape 2 is held between the insertion piece portion 110 and the locking portion 112, when the cassette tape 2 is held by the index card 109 and inserted into the case 100, the case 100 and the locking portion 112 are separated from each other. The friction force makes it difficult for the index card 109 to fall off.

In this case 100, in order to keep the opening 101 closed by the index card 109, it may be wrapped with, for example, paper, a transparent film, a label or the like.

FIG. 36 is a development view of the case of the ninth embodiment of the present invention.

This case 120 is the case 10 shown in FIG.
This is a modification of No. 0, and the index card 109 of FIG. 32 is inserted into the case 120.

The case 120 includes a pair of flat portions 121, 1
22, a long side peripheral wall portion 123 connecting the pair of flat surface portions 121 and 122, a flap 124 forming a long side peripheral wall portion facing the long side peripheral wall portion 123, and a flap 125 forming a short piece peripheral wall portion, And a flap 126 for a sealing part that closes a part of the opening of the case 120 assembled in a box shape and maintains the unopened state of the product. Flap 12
6 is formed on the edge of the short piece of the flat portion 124 on the side forming the opening of the case 120, and the stitch 127 is provided at the boundary between the flap 126 and this edge. In addition, the stitch 127 is formed so that the flap 126 is separated from the case 120 by the flat portions 121 and 122.
It has a trapezoidal shape at its edge.

The locking piece 128 shown in FIG. 37 is inserted into the portion of the flat surface portion 121 where the hub holes 6, 6 of the cassette tape 2 are located. The locking protrusion 129 of the locking piece 128 has a chamfered end portion, and a small recess 12 is formed at the boundary portion to be bent at a right angle.
9a is provided. The locking protrusion 129 is the case 120.
A pair of insertion slits 130 are formed in the flat surface portion 121 so as to be inserted from the outside.

The case 120 is preprinted with a desired print. The locking projection 129 is inserted into the slit 130 to fix the locking piece 128 to the flat surface 121, and the flaps 124 and 124 are overlapped and adhered to each other. 125,
By laminating 125 and laminating them, they are assembled into an elongated rectangular cross section.

When assembled into a rectangular cross section, a cassette tape 2 to be a product is formed into an index card 1 shown in FIG.
When it is held at 09 and inserted into the case 120 through the opening, the locking protrusions 129 and 129 are inserted into the hub holes 6 and 6 to prevent rotation of the hub. Index card 10
When the locking portion 112 of 9 is inserted into the opening of the case 120, the flaps 126, 126 are attached to each other to complete the sealing of the cassette tape 2 and the subsequent wrapping is not performed. As a result, no waste such as plastic waste or wrap film is generated. Even when used by the consumer, if the flap 126 is removed along the stitch 127, a notch after the cutting of the stitch 127 is formed at the opening edge portion, and the index card 109 can be easily pulled out. Even when the cassette tape 2 is stored again, if the index card 109 holds the cassette tape 2 and the index card 109 is inserted into the case 120, the locking protrusions 129 and 129 easily enter the hub holes 6 and 6, and the hub is inserted. Is prevented from rotating.

[0088]

Since the present invention is constructed as described above, the following effects can be obtained.

According to the cassette tape case of the first aspect, although the structure is very simple, the cassette tape does not move in the case and the rotation of the hub is prevented. Moreover, the volume of the case itself is not bulky, the weight is light, the printing is easy, and the plastic is used as little as possible or not at all, which is suitable for environmental protection. Further, since the portion provided with the locking projection is bulged when the cassette tape is taken in and out, the cassette tape can be easily taken in and out, and the material of the locking piece is flexible and elastically deformed as well as not deformed. Can also be selected.

According to the cassette tape case of claim 2 of the present invention, in addition to the effect of claim 1, only the locking piece does not protrude from the surface of the paper case by the thickness of the locking piece. Therefore, even if a large number of paper cases are stacked, they do not collapse.

According to the cassette tape case of the third aspect of the present invention, in addition to the effect of the first aspect, when the cassette tape is inserted, the locking projections of the locking pieces are inserted into the pair of hubs without coming off. It

According to the fourth aspect of the present invention, in addition to the effect of the first aspect, the cassette tape can be smoothly taken in and out, and the locking projection of the locking piece and the case as well as the cassette tape can be removed. There is little pain.

According to the cassette tape case of the fifth aspect of the present invention, in addition to the effect of the first aspect, the durability of the locking projection is improved and the paper case is deformed, so that the cassette tape can be taken in and out. Is smooth.

According to the sixth aspect of the present invention, in addition to the effect of the first aspect, the cassette tape case can be stored in a flat stack, and plastic waste is not generated at the time of disposal.

According to the cassette tape case of the seventh aspect of the present invention, in addition to the effect of the first aspect, the unopened state of the cassette tape is secured. At the time of opening, the cover can be pulled out only by tearing the opening, so that the cassette tape can be easily taken in and out, and various prints can be made on the outside of the cover, so that the decorativeness is enhanced.

[Brief description of drawings]

FIG. 1 is a perspective view of a cassette tape case according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state where a cassette tape is inserted in the case shown in FIG.

FIG. 3 is a cross-sectional view of the cassette tape taken out from the case of FIG.

FIG. 4 is a perspective view of a cassette tape case according to a second embodiment of the present invention.

FIG. 5 is a development view of a cassette tape case according to a third embodiment of the present invention.

6 is a perspective view of a locking piece to be mounted on the case shown in FIG.

FIG. 7 is a development view of a cassette tape case according to a fourth embodiment of the present invention.

8 is a view showing an opening of the cassette tape case of FIG.

FIG. 9 is a perspective view of a cassette tape case according to a fifth embodiment of the present invention.

FIG. 10 is a development view of a cassette tape case according to a fifth embodiment of the present invention.

FIG. 11 is a perspective view of a locking piece according to a fifth embodiment of the present invention.

FIG. 12 is a perspective view of a cassette tape case according to a sixth embodiment of the present invention.

FIG. 13 is a perspective view of a cassette tape case according to a seventh embodiment of the present invention.

FIG. 14 is a perspective view of a cassette tape case according to a seventh embodiment of the present invention in a closed state.

FIG. 15 is a sectional view of the cassette tape case of the seventh embodiment of the present invention in a closed state.

FIG. 16 is a sectional view of the cassette tape case of the seventh embodiment of the present invention in an open state.

FIG. 17 is a perspective view of a locking piece according to a modified example 1 of the first to the first embodiments.

FIG. 18 is a perspective view of a locking piece of modification 2 of the first to seventh embodiments.

FIG. 19 is a perspective view of a locking piece of modification 3 of the first to seventh embodiments.

FIG. 20 is a partial cross-sectional view of a locking piece of modification 3 of the first to seventh embodiments.

FIG. 21 is a perspective view of a locking piece of modification 4 of the first to seventh embodiments.

FIG. 22 is a partial cross-sectional view of a locking piece of Modification 4 of the first to seventh embodiments.

FIG. 23 is a perspective view of a locking piece of modification 5 of the first to seventh embodiments.

FIG. 24 is a partial cross-sectional view of a locking piece of modification 5 of the first to seventh embodiments.

FIG. 25 is a perspective view of a locking piece of modification 6 of the first to seventh embodiments.

FIG. 26 is a partial cross-sectional view of a locking piece of modification 6 of the first to seventh embodiments.

FIG. 27 is a perspective view of a locking piece of modification 7 of the first to seventh embodiments.

FIG. 28 is a perspective view of a locking piece of modification 8 of the first to seventh embodiments.

FIG. 29 is a cross-sectional view of the cassette tape stored in the case including the locking piece of FIG. 25.

FIG. 30 is a cross-sectional view showing a state where the cassette tape is taken out from the case including the locking piece of FIG. 25.

FIG. 31 is a perspective view of a modified example 1 of the lid portion of the case of the seventh embodiment in which the case and the locking piece are integrally formed of paper.

FIG. 32 is a perspective view of a modified example 2 of the lid portion of the case of the seventh embodiment in which the case and the locking piece are integrally formed of paper.

FIG. 33 is a perspective view of a modified example 3 of the lid portion of the case of the seventh embodiment in which the case and the locking piece are integrally formed of paper.

FIG. 34 is a perspective view of a modified example 4 of the lid portion of the case of the seventh embodiment in which the case and the locking piece are integrally formed of paper.

FIG. 35 is a perspective view of a cassette tape case according to an eighth embodiment of the present invention.

FIG. 36 is a development view of the cassette tape case of the ninth embodiment of the present invention.

FIG. 37 is a development view showing a modified example of the locking piece of the ninth embodiment of the present invention.

[Explanation of symbols]

 1 Case 2 Cassette Tape 3 Locking Piece 4 Opening 5 Plane 6 Hub 7 Locking Protrusion 10 Case 12 Recess 13 Locking Piece 16 Locking Protrusion 17 Slit 20 Case 24 Locking Piece 25 Locking Protrusion 26 Slit 30 Case 32 Step portion 33 Bent portion 34 Slit 40 Case 43 Lid portion 44 Locking piece 45 Locking protrusion 50 Case 51 Lid portion 55 Locking piece 60 Case 62 Lid portion 66 Locking piece 67 Locking protrusion 70 Locking piece 71 Locking Projection 72 Locking piece 73 Locking projection 74 Locking piece 75 Locking projection 76 Locking piece 77 Locking projection 80 Locking piece 82 Locking projection 84 Locking piece 85 Locking projection 87 Locking projection 89 Locking projection 90 Locking piece 92 Locking projection 93 Locking piece 95 Locking projection 100 Case 101 Opening 102 Notch 104 Locking piece 105 Recess 106 Slit 107 Locking Causing 109 the index card 120 Case 126 flaps 127 stitches 128 engaging piece 129 engaging protrusions 130 slit

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Internal reference number FI Technical display location 0330-3E 311 R (72) Inventor Shinsei Yamazaki 1-5-1 Taito, Taito-ku, Tokyo Printing Co., Ltd. (72) Inventor Makoto Igarashi 1-5-1 Taito, Taito-ku, Tokyo Toppan Printing Co., Ltd.

Claims (7)

[Claims] 1. A paper case having a flat box shape that is substantially similar to a cassette tape, into / from which the cassette tape is inserted / removed through an opening on one side, and a pair of hubs for winding the cassette tape. In order to restrict the rotation of the hub, it is formed separately from a narrow width locking piece having a pair of locking projections to be inserted into the inside of the hub, and when the cassette tape is stored in the paper case. According to the positions of the pair of hubs, the locking pieces are fixed to the paper case in parallel with the longitudinal direction of the cassette tape, and the pair of locking projections are projected into the paper case. A case for a cassette tape featuring. 2. The cassette tape case according to claim 1, wherein the flat portion of the paper case has a recess that is substantially the same as the planar shape of the locking piece and has a depth corresponding to the thickness of the locking piece. And a slit into which the pair of locking projections of the locking piece are inserted, and the pair of locking projections are projected into the case from the slit. Case. 3. The cassette tape case according to claim 1, wherein the inner wall surface of the paper case allows sliding of a portion where the cassette tape is thin when the cassette tape is inserted, A cassette tape case, characterized in that a step portion for restricting sliding of a thick portion is formed. 4. The cassette tape case according to any one of claims 1 to 3, wherein a wide side surface portion of the pair of wide side surface portions and the pair of narrow side surface portions forming the paper case is formed. A cassette tape case characterized in that an opening for inserting the cassette tape is provided on one side. 5. The cassette tape case according to any one of claims 1 to 4, wherein the pair of locking projections of the locking piece are formed of a member that is not plastically deformed, and have a bulged shape. A case for a cassette tape. 6. The cassette tape case according to claim 1, wherein the locking piece is made of paper, and the locking piece has a parallel slit having a width corresponding to an inner diameter of the hub. The cassette tape case is characterized in that the locking projection is formed by bending a band-shaped portion between the parallel slits. 7. The cassette tape case according to any one of claims 1 to 6, further comprising a cover having the same width as the opening of the paper case, the cover having substantially the same planar shape as the paper case. A large index portion, a closing portion that is substantially the same size as the opening portion that can close the opening portion, and a locking portion that faces the index portion and is inserted into the case are formed in series. A cassette tape case, wherein an opening portion that covers the closing portion of the cover from the outside and is fixed to the opening edge portion is formed at the opening edge portion of the case.