JP2570218B2 - Index sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an index sheet provided in a cassette case for accommodating a tape cassette.

[0002]

2. Description of the Related Art A tape cassette generally used for audio or the like is stored in a plastic cassette case when not in use, and the cassette case contains music recorded on the tape cassette. An index sheet to fill in is inserted.

In recent years, as a cassette case, a so-called thin case having a small overall thickness has been put to practical use in order to save space during storage.

FIG. 4 shows an example of this thin case. The cassette case 1 illustrated here houses a generally-used audio compact cassette (hereinafter, referred to as a tape cassette) 31 and includes a casing 2 as a cassette case main body and a lid 3. The lid 3 is pivotally connected to the lid 3 via a hinge 4 so as to be freely opened and closed.

[0005] On the inner surface 2c of the casing 2, locking projections 5a and 5b which are inserted into the reel shaft insertion holes 32a and 32b of the tape cassette 31 and prevent rotation of the reel hub in the tape cassette 31 are formed.

On the other hand, a cassette holding section 6 for holding the tape cassette 31 is provided on the inner surface 3c side of the lid 3, and the cassette holding section 6
The tape cassette 31 is held so as to rotate integrally with the lid 3 by inserting the tape cassette 31 from the front opening portion (exposed portion of the magnetic tape into which a magnetic head, a pinch roller and the like are inserted) 33. 2 can be easily taken in and out.

[0007] The tape cassette 31 is formed with a trapezoidal bulging portion 34 forming a front opening 33 on both front and back sides thereof in a protruding manner. Correspondingly, in the cassette case 1, recesses 8 and 9 in which the bulging portion 34 is accommodated are formed on the inner surfaces 2c and 3c of the casing 2 and the lid 3, respectively.

[0010] Reference numeral 10 denotes an index sheet for writing the tunes and the like recorded on the tape cassette 31. The index sheet 10 is made of a paper material having a required hardness, and is inserted into the cassette case 1 while being sandwiched between the inner surface 3c of the lid 3 and the tape cassette 31.

[0009]

The index sheet 10 is generally formed in a large area enough to cover the tape cassette in a general cassette case, but in the cassette case 1 as described above. When an index sheet having a large area is inserted, the index sheet interferes with the tape cassette 3 in the recess 9.
Since the one bulging portion 34 cannot be accommodated, the index sheet 10 must be formed in a small area so as not to cover the concave portion. Therefore, the entry space for music and the like is greatly restricted. The present invention has been made for the purpose of solving such a problem.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention comprises a casing and a lid which are pivotally connected to each other so as to be openable and closable. In an index sheet provided in a cassette case having a concave portion in which a bulging portion constituting the portion is accommodated, a portion corresponding to the concave portion is formed by positively deforming the concave portion. As a result, the index sheet does not hinder the storage of the tape cassette, so that a sheet having a large area that sufficiently covers the tape cassette can be used.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a cassette case as a whole. The cassette case 1 is composed of a casing 2 as a cassette case main body and a lid 3, and the casing 2 and the lid 3 can be freely opened and closed via a hinge portion 4. Being pivoted. Specifically, the left and right side walls 3 of the lid 3
Shafts formed on the inner surfaces of the left and right side walls 2a, 2b of the casing 2 are engaged with shafts protruding from the outer surfaces of the casings a, 3b. On the other hand, the cover 3 is configured to be opened and closed and rotated.

On the inner surface 2c of the casing 2, locking projections 5a and 5b are formed which are inserted into the reel shaft insertion holes 32a and 32b of the tape cassette 31 to prevent rotation of the reel hub in the tape cassette. A cassette holding unit 6 for holding the tape cassette 31 is provided on the inner surface 3c side of the unit 3.

In the cassette case 1 of this embodiment, the cassette holding portion 6 of the lid 3 uses the guide projections 35a and 35b protruding from the right and left sides of the tape cassette 31 to cover the tape cassette 31 with the lid. 3.

That is, the guide projections 35a and 35b are provided as a standard for a compact audio cassette.
Are formed on the left and right side walls 3a, 3b of the lid 3 with engaging walls 7a, 7b slightly protruding inward from the leading edges thereof.
When the tape cassette 31 is inserted into the cassette holding section 6 from the side, the engaging walls 7a and 7b face the front of the guide projections 35a and 35b, whereby the tape cassette 31 is engaged and held by the lid 3. (See FIGS. 2 and 3).

In this manner, the cassette holder 6 of the lid 3
The tape cassette 31 is held by the tape cassette 31 so that the tape cassette opens and closes and rotates integrally with the lid 3, and the casing 2
Can be easily taken in and out of the device.

Further, in the cassette case 1,
Casing 2 facing both sides of tape cassette 31
On the inner surfaces 2 c and 3 c of the lid 3, recesses 8 and 9 for accommodating trapezoidal bulging portions 34 constituting the front opening 33 of the tape cassette 31 are formed. The recesses 8 and 9 allow the tape cassette 31 to be inserted into the front opening 33 thereof.
It is formed at a position where the bulging portion 34 can be accommodated in a state where the bulging portion 34 is inserted from the side into the cassette holding portion 6 of the lid 3.

By adopting the above configuration, the cassette case 1 of this embodiment is formed in a thin shape whose overall thickness is much thinner than a general cassette case.

Reference numeral 10 denotes an index sheet for writing the tunes and the like recorded on the tape cassette 31. The index sheet 10 has a large area enough to cover the tape cassette 31 and is inserted into the cassette case 1 while being sandwiched between the inner surface 3c of the lid 3 and the tape cassette 31. is there.

The index sheet 10 includes a cover 3
A portion corresponding to the concave portion 9 of the tape cassette 31, that is, a portion corresponding to the bulging portion 34 of the tape cassette 31, is formed with a concave deformed portion 11 which is concaved in a shape following the bulging portion 34.

The concave deformed portion 11 is formed by extruding (pressing) from the back side of the index sheet 10, that is, from the tape cassette 31 side. Therefore, a protrusion corresponding to the concave shape is formed on the front side of the index sheet. Is formed, and the projection is set in the recess 9 of the lid 3.

Since the index sheet 10 is provided with the concave deformed portion 11 corresponding to the concave portion 9 of the lid 3, when the tape cassette 31 is stored in the cassette case 1, it expands together with the concave deformed portion 11. The projecting portion 34 is set in the recess 9 so that the tape cassette 31
Are stored in the cassette case 1 without the index sheet 10 being in the way.

In the above configuration, the cassette case 1
The casing 2 is made of transparent or opaque plastic, the lid 3 is made of transparent plastic, and the index sheet 1
Numeral 0 is formed of a paper material having a required hardness (the index sheet is not shown in FIGS. 2 and 3).

[0023]

As is clear from the above description, since the index sheet of the present invention is formed by deforming the portion corresponding to the concave portion of the cassette case into a concave shape, it does not hinder the accommodation of the tape cassette. , Can use a large area enough to cover the tape cassette like the index sheet of the general cassette case,
Enough space for entry of songs etc. can be secured.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a front view of a lid of the cassette case.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a perspective view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cassette case 2 Casing 3 Lid body 8 and 9 Concave part 10 Index sheet 11 Concave deformation part 31 Tape cassette 34 Swelling part

Claims (2)

(57) [Claims] 1. A casing and a lid are pivotally connected to each other so as to be openable and closable, and a recess is formed in each of the casing and the lid to accommodate a bulging portion constituting a front opening of the tape cassette. An index sheet provided in a cassette case, wherein a portion corresponding to the concave portion is formed by deforming into a concave shape. 2. The index sheet according to claim 1, wherein the concave deformed portion is formed by pressing.