JPH0863937A - Recording medium housing cassette - Google Patents

Abstract

PURPOSE: To clearly indicate a recorded content in a tape without using a label sheet by forming a writable area in a portion of the surface of a cassette casing. CONSTITUTION: A writable area 13 is formed belt-like in the left and right full width in a portion of each surface of the cassette halves 2a and 2b in the upper and lower sides of a tape cassette casing 2. Here, after the writable area 13 part in the main body part of the cassette halves 2a and 2b is recessed, a dual structure is formed forming the area 13. As a shaping material, one made by mixing white pigment in the same resin as used for the cassette half is utilized. Thus, a title, etc., are directly written on the cassette casing, attaching work of label sheet is eliminated and damages due to the dirty label sheet is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium storage cassette such as a tape cassette used for various recordings.

[0002]

2. Description of the Related Art Currently, as tape cassettes as an example of recording medium storage cassettes, various cassettes such as audio compact cassettes, video cassettes, and DAT (digital audio tape recorder) cassettes have been commercialized.

In these various tape cassettes,
As a means to clarify the recorded contents of the tape,
Label sheets are used. That is, in general, a tape cassette product is attached with a paper label sheet having an adhesive surface on the back side, and the recorded contents (title, music, etc.) of the tape are written on this label sheet, and this is used as a cassette box body. It is designed to be attached to a specified area on the surface.

[0004]

However, in the tape cassette to which the label sheet is attached as described above, the label sheet is torn or discolored during long-term use, and the appearance is impaired. The sheet is not functioning sufficiently, such as peeling from the cassette.
The present invention has been made for the purpose of solving such a problem.

[0005]

In order to achieve the above object, the present invention provides, for example, in a tape cassette in which a recording tape is housed in a cassette case, the recorded contents of the tape (title , Songs, etc.) is provided for writing area. This writable area is formed integrally with the cassette housing by two-layer molding or two-color molding. As the molding material for the writable area, the same resin as the cassette housing or a material in which a white pigment is mixed with another resin is used.

[0006]

With the tape cassette of the present invention as described above, since a title or the like can be directly written in the writable area of the cassette case, there is no fear of tearing or peeling of the label sheet as in the conventional case, and it can be used safely for a long time. You can

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 is an audio compact cassette as an example of a recording medium storage cassette, and 2 is its cassette housing, which is an upper cassette half 2a and a lower cassette half. 2b and 2b are united and fixed by welding or the like. 3a and 3b are hub drive shaft insertion holes, 4a and 4b are capstan insertion holes, and 5a and 5b are positioning reference holes.

In the cassette housing 2, a pair of hubs, that is, a supply side hub 6a and a winding side hub 6b are rotatably accommodated corresponding to the hub drive shaft insertion holes 3a and 3b, respectively.
A terminal portion of a tape (magnetic tape) 7 is fixed to the hubs 6a and 6b, and the tape 7 is wound.

8a and 8b are guide pins, 9a and 9b
Is a guide roller, and the tape 7 wound around the supply-side hub 6a is led out and exposed to the front opening 10 of the cassette housing 2 through the guide pin 8a and the guide roller 9a, and further passes through this front opening 10. After that, the guide roller 9
A tape running path is formed so as to be wound around the winding-side hub 6b via b and the guide pin 8b.

The central portion of the front opening 10 from which the tape 7 is exposed serves as a head insertion portion 11 into which a magnetic head is inserted, and the magnetic head inserted into this head insertion portion 11 contacts the tape 7. Recording or reproduction is performed by. Further, between the hubs 6a and 6b and the upper cassette half 2a, and between the hubs 6a and 6b and the lower cassette half 2b, the tape 7 wound around the hubs 6a and 6b is prevented from being disturbed. Liner sheets 12a and 12b are arranged respectively.

In the tape cassette 1 having the internal structure as described above, the writable area 13 is formed on a part of the surface of each of the upper cassette half 2a and the lower cassette half 2b which constitute the cassette housing 2. ing.

In this example, the writable area 13 is formed in a strip shape over the entire left and right widths at positions near the rear of the upper cassette half 2a and the lower cassette half 2b, and the writable area 13 is shown in FIG. As described above, the writing tool 14 allows the user to freely enter a title and the like.

The writable area 13 is formed by the two-layer molding as shown in the sectional view of FIG.
It is formed integrally with 2b. That is, in this example, first, the writable area 13 is recessed by about half the wall thickness to mold the main body of the cassette halves 2a and 2b, and then the writable area 13 is formed in the remaining concave portions. Is integrally molded. That is, in this example, the writable area 1
The feature of 3 is a two-layer structure with cassette halves 2a and 2b.

The writable area 13 can also be formed integrally with the cassette halves 2a, 2b by two-color molding as shown in FIG. That is, in this example, first, the portion of the writable area 13 is removed by the entire thickness to mold the main body of the cassette halves 2a and 2b, and then the portion that forms the writable area 13 is integrally molded in the remaining space. .
That is, the example of this two-color molding is characterized in that the portion of the writable area 13 is not a layered structure, but is formed to the entire thickness of the cassette halves 2a and 2b.

As a molding material for the writable area 13, the same resin as the cassette halves 2a and 2b or another resin mixed with a white pigment is used. Specifically, polystyrene (PS), high-impact polystyrene (HI-PS), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), and other resins are coated with white pigments such as calcium carbonate, titanium oxide, zinc oxide, and alumina. A material in which 5 to 30 wt% and protein powder are mixed to 5 to 25 wt% is used.

The writable area 13 formed of such a material exhibits a clear white background with a white pigment such as calcium carbonate, and is formed with this pigment having an appropriate surface roughness. Oil-based pen, water-based pen,
You can freely write titles and the like with the same feeling as on paper, using general writing instruments such as pencils and ballpoint pens.

In particular, since the material of this example is mixed with protein powder, the hydrophilic group of this protein powder provides good writability without causing the ink to float even with an aqueous pen.

The surface roughness of the writable area 13 is R
z3 to 25 μm is optimal, and the surface roughness improves the catch of the writing instrument (pen), that is, writing can be performed with an appropriate resistance, so a stable writing feel can be obtained (if Rz is less than 3 μm, the resistance during writing is reduced. It is hard to write because there is almost no, and conversely, when it exceeds Rz 25 μm, it becomes too rough and the surface unevenness is conspicuous and it is difficult to write.

As described above, the tape cassette 1 of this embodiment
In this case, since the title and the like can be directly written in the writable area 13 of the cassette housing 2, there is no need to write the title and the like on the attached label sheet and attach it to the cassette as in the conventional case, and the label sheet is torn. No more worrying about peeling.

Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment. For example, in the embodiment, the writable area is formed on a part of the surface of the cassette housing, but the entire surface of the cassette housing may be the writable area.

The present invention is not limited to the audio compact cassette as shown in the embodiments, but can be widely applied to various tape cassettes and disk cassettes such as video cassettes and DAT cassettes. Needless to say.

[0023]

As is apparent from the above description of the embodiments, the recording medium storage cassette of the present invention is characterized in that the surface of the cassette housing is provided with a writable area in which a title or the like can be written. Is.

Further, according to the cassette of the present invention, since the title and the like can be directly written on the cassette case, it is not necessary to write the title and the like on the attached label sheet and attach it to the cassette case as in the conventional case. Therefore, usability is improved. In addition, since there is no fear of tearing or peeling of the label sheet as in the conventional case, the label sheet can be used with confidence for a long time.

Further, the cassette of the present invention has a feature that it can be easily recycled because it can be crushed and reused as it is without peeling off the label sheet at the time of recycling after disposal.

[Brief description of drawings]

FIG. 1 is a perspective view of a tape cassette showing an embodiment.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a sectional view of the main part of the same.

FIG. 4 is another structural example of the main part.

FIG. 5 is an explanatory diagram of writing in a writable area.

[Explanation of symbols]

 1 tape cassette (recording medium storage cassette) 2 cassette housing 2a upper cassette half 2b lower cassette half 13 writable area 14 writing instrument

Claims (4)

[Claims] 1. A cassette in which a recording medium is housed in a cassette housing, wherein a writable area in which a recorded content of the recording medium can be written is formed on a surface of the cassette housing. Recording medium storage cassette. 2. The recording medium storage cassette according to claim 1, wherein the writable area is formed integrally with the cassette housing by double-layer molding. 3. The recording medium storage cassette according to claim 1, wherein the writable area is formed integrally with the cassette housing by two-color molding. 4. The recording medium storage cassette according to claim 1, wherein the writable area is formed of a material in which a white pigment is mixed with the same resin as the cassette housing or another resin.