JP2556291Y2 - Storage case for magnetic tape cassette - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic tape cassette storage case, and more particularly to an improvement of a magnetic tape cassette storage case used for storing an audio magnetic tape cassette.

[0002]

2. Description of the Related Art A magnetic tape cassette used for audio or the like is usually stored in a plastic magnetic tape cassette storage case (hereinafter simply referred to as a "cassette storage case") during storage (when not in use). You.

The cassette storage case has a cassette front opening through which a magnetic head or the like is inserted when the magnetic tape cassette (hereinafter referred to as a "cassette") is loaded in a recording / reproducing apparatus. Since it has a magnetic tape mounted so as to cross over, while preventing dust from entering the cassette from the front opening,
It is used to protect the magnetic tape located at the front opening and to protect the entire cassette.

FIG. 9 shows a basic structure of a conventional cassette storage case. The cassette storage case 31 includes a lid portion 32 having a pocket 34 into which the front opening portion of the cassette 20 is inserted, and a casing portion 35 having a pair of anti-rotation protrusions 7 that enter the shaft insertion hole 22 of the cassette 20. I have. Then, the cassette storage case 31 is fitted to the casing portion 35 by fitting a support shaft projecting from the left and right inner sides of the casing portion 35 with a hole provided in an end side wall of the pocket 34. The lid 32 can be opened and closed like a door.

In the cassette storage case 31, the interval between the wall portions 33 and 36 facing the front and back surfaces of the cassette 20 has an interval corresponding to the thickness of the cassette thickness increasing portion 21 forming the front opening of the cassette 20. It is configured.
For this reason, the cassette storage case 31 has a thickness l.
_1, is considerably larger structure than the thickness l ₂ of the thin portions of the cassette other than the cassette thickness increasing portion 21. Therefore, the cassette storage case 31 requires a considerably large storage space as compared with a case where the cassette 20 is stored naked.

[0006] For this reason, a general user can use the cassette 2
When storing 0 in a limited space, for example, when storing as much as possible in a console box of a car, the cassette storage case 31 may not be stored. However, if the cassette 20 is stored without being housed in the cassette storage case 31, dust easily enters the cassette, which promotes the deterioration of the recording / reproducing characteristics of the magnetic tape, or directly causes the impact due to dropping or the like. There were problems such as damage due to receiving.

In order to solve the above-mentioned problems, the present applicant has previously proposed several thin cassette storage cases (Japanese Utility Model Application Laid-Open Nos. 60-163279 and 63-527).
No. 82).

[0008] In this thin cassette storage case, the cassette is stored in the opposite direction to the conventional case, the cassette thickness increasing portion is positioned on the open side of the cassette storage case, and the cassette thickness increasing portion is positioned at the open side of the cassette storage case. This is a structure in which recesses for receiving are formed on the upper and lower wall surfaces of the case.

That is, for example, the aforementioned Japanese Utility Model Application Laid-Open No. 63-5278.
The improved storage case for a cassette described in Japanese Patent Publication No. 2 (2004) -112 will be described.
A lid portion 12 having a pocket 14 and a casing portion 15 are pivotally mounted in the same manner as in a conventional cassette storage case, and a wall portion widely facing the front and back surfaces of the cassette portion of the lid portion 12 and the casing portion 15. As shown in FIG. 8, recesses 18, 18 for receiving the cassette thickness increasing portion 21 are formed on the open sides of the slots 13, 16.

The recesses 18 are formed on the inside of the case so as to face each other.
And a shape that accepts the same.

Thus, the cassette storage case 1
1 can be configured such that the distance between the wall portion 13 and the wall portion 16 excluding the concave portions 18 and 18 is extremely larger than the thickness l2 other than the cassette thickness increasing portion 21. Can be considerably thinner than the case. Therefore, the storage space has been reduced, and the usability as a portable device has been greatly improved.

However, according to the study by the present inventor, it has been found that there is a problem to be further improved.

[0013]

That is, for example, in the case of long music such as classical music, or when it is desired to combine a large number of music into one album, the recording time may be insufficient with one cassette. . Therefore, it is unavoidable that the data must be separately recorded in two or more cassettes, and furthermore, collected as one set and stored individually in separate storage cases, which is not desirable in terms of organizing and storing.

[0014] Therefore, a general user needs to manage a set of tapes so as not to be separated, which is very inconvenient. For example, language learning tapes and the like must be managed according to a learning program, and in reality, a special management box is used.

As described above, in the related art, a cassette storage case for simultaneously storing a plurality of cassettes, that is, two or more cassettes, does not consider the storability, and is capable of storing a plurality of cassettes and a thin cassette. The storage case did not even have the technical idea.

The present invention has been made in view of the above situation, and an object of the present invention is to provide a cassette storage case which stores a plurality of cassettes, and which is thin and easy to store as a whole. .

[0017]

The object of the present invention is to provide a pocket for accommodating an end of a magnetic tape cassette.
Cover member having a cover and a casing portion having a rotation preventing protrusion
The storage case for the magnetic tape cassette is
And an even number of the tape cassettes.
Directly overlap the front and rear directions alternately, and
The hub holes of each magnetic tape cassette can be penetrated simultaneously.
The magnetic tape having an anti-rotation projection and overlapping
Of cassettes located on both sides of the tape cassette
A recess for receiving the enlarged portion is formed on the inner surface of the case.
That the magnetic tape cassette, the magnetic Tepukase'
The concave portion for receiving the thickened portion of the
A large wall in an area facing the small wall defining the pocket;
Provided on the inner surface of the casing and near the open / close end of the inner surface of the casing.
It is, an inner wall surface of the pocket of the lid member, the magnetic
And the surface of the magnetic tape cassette opposite to the exposed surface of the magnetic tape.
In the opposing part, the superposed magnetic tape cassette
So that the center line of the hub insertion hole of
Positioning means is provided to regulate the position of the tape cassette.
Magnetic tape cassette storage case
It can be achieved by the nest.

The object of the present invention is to provide a magnetic tape cassette.
A lid member having a pocket for receiving an end of the slot;
Pivotally rotatable with casing part having anti-rotation protrusion
Storage case for a magnetic tape cassette
In addition, the odd number of the tape cassettes are
In addition to directly overlapping the differences,
The anti-rotation projection is configured so that it can pass through the hub hole of
Out of the magnetic tape cassettes
Recesses for receiving the thickened portions of the cassette located on both outer sides
The magnetic tape cassette whose part is formed on the inner surface of the case
In DOO, receiving the increased thickness portion of the magnetic tape cassette
The concave portion for housing is an open / close end of the inner surface of the casing.
And the inner surface of the large wall portion of the lid member,
In the position facing the opening / closing end of the casing
Provided, an inner wall surface of the pocket of the cover member, before
The opposite side of the magnetic tape cassette from the exposed part of the magnetic tape
In the part facing the surface, the superposed magnetic tape cassette
So that the center line of the hub insertion hole of the
A rib is provided to regulate the position of the magnetic tape cassette.
And a storage case for a magnetic tape cassette .

[0019]

That is, the cassette accommodating case of the present invention is capable of accommodating a plurality of cassettes so as to be overlapped in the front-rear direction when the magnetic tape cassette is accommodated.
Then, at the time of storage, the thickened portion of the outermost cassette is received in the recess formed on the inner surface of the case. As a result, the storage space can be reduced by stacking the thickened portions of the plurality of cassettes so as to directly overlap at alternately displaced positions. Further, since each thickened portion is received in the recess, the case itself is further reduced. Is a thin case, and the storage space for the cassette can be reduced.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view of a cassette storage case, and FIG. 2 is a perspective view showing a cassette storage state. FIG. 3 is a cross-sectional view of a main part along the cassette front-rear direction in the cassette storage state.

The cassette storage case 1 has a lid 4 having a pocket 4 formed in a space in which one rear end and one front end of the two magnetic tape cassettes 20a and 20b can be simultaneously inserted in a stacked state. The casing 2 includes a casing 2 and a pair of anti-rotation projections 42 that enter the shaft insertion holes 22 of the two cassettes 20a and 20b. The rotation preventing projection 42 is formed on the wall 8 constituting the casing 3.

The cassette storage case 1 has a support shaft 17 projecting from the inside of the cassette front-rear direction side wall 9 of the casing portion 3 fitted into a hole formed in the end side wall of the pocket 4. Thereby, the casing 3 and the lid 2 can be opened and closed like a door in the longitudinal direction of the case.

Further, the large wall portion 6 (small wall portion 43) of the lid portion 2 is provided.
In the region constituting the pocket 4, a recess 5a (second wall) having a size to receive the cassette thickness increasing portion 21 of the second magnetic tape cassette 20b (see FIG. 2) is formed. (Recess). On the other hand, in the wall portion 8 of the casing portion 3 from the opening / closing front end portion, FIG.
The first magnetic tape cassette 20a shown on the upper side in FIG.
5b large enough to receive the cassette thickness increasing portion 21 of FIG.
(First concave portion) is formed. The recesses 5a, 5b
When the two magnetic tape cassettes 20a, 20b are received in a stacked state with the front and rear reversed, the cassette thickness increasing portions 21 are received in opposite directions.
As described above, the concave portion 5a corresponds to the second concave portion, and the concave portion 5b corresponds to the first concave portion.

A pair of ribs 45 are formed in the pocket 4 at corners of the small wall 43 and a vertical wall 44 perpendicular to the small wall 43. The rib 45 is a means for positioning the first magnetic tape cassette 20a,
The two magnetic tape cassette cassettes 20a and 20b
This is to make the respective shaft insertion holes 22 communicate with each other when they are stacked.

That is, the shaft insertion hole 22 is not formed on the center line of the magnetic tape cassettes 20a and 20b in the front-rear direction (width direction), but is slightly offset toward the rear end. Therefore, if the two magnetic tape cassettes 20a and 20b are laminated so that the outer contours thereof completely coincide with each other, the shaft insertion hole 22 does not correspond to the coincident position, and the rotation preventing hole formed on one side in the case is formed. Protrusion 42
Cannot be inserted into both cassettes. Therefore, the rib 45 is provided as a positioning member for communicating the shaft insertion holes 22 at substantially coincident positions.

The two magnetic tape cassettes 20
When the a and 20b are stored in the case, for example, the cassette thickness increasing portion 21 of the lower second cassette 20b is inserted into the pocket 4 so as to correspond to the recess 5a, and then the second cassette The first cassette 20a is inserted between the small wall portion 43 and the second cassette 20b in a direction opposite to the cassette 20b.

In this way, as shown in FIG. 2, the two magnetic tape cassettes 20a and 20b are stored in the lid portion 2 of the cassette storage case 1 in a stacked state.
When the lid 3 is closed, the rotation preventing projection 42 is inserted through each of the shaft insertion holes 22, and the cassette storage is completed.

FIG. 3 is a cross-sectional view showing the storage state, and is a cross-sectional view of a main part along the cassette front-back direction. The illustrated storage state is such that the shaft insertion holes 22 of both cassettes 20a and 20b are aligned by the rib 45, and the rotation prevention projection 42 is inserted through the shaft insertion hole 22. .

Here, an example of the size of the storage case 1 will be described. The length L ₁ of the case 1 is longer than the conventional storage case by the size of the rib 45 by about 5.8 mm. However, the thickness L ₂ are recesses 5a in order to accommodated the opposite front and rear of the cassette, by the formation away 5b in the opposite direction,
It can be made about 6 mm smaller than the thickness of two conventional cases. Therefore, the volume of the storage case 1 is:
Despite containing two cassettes, the volume is about 1.53 times the volume of one conventional cassette. In other words, the two cassettes 20a and 20b can be accommodated in the case containing one cassette by about 53% more than the volume of the case. For this reason, the storage space for the cassettes is reduced, and the related cassettes 20a and 20b can be stored collectively, which facilitates storage especially when two cassettes are assembled.

Further, when the storage case 1 is opened and the cassettes 20a and 20b are taken out, the two cassettes are stepped so as to be easy to take out. The cassette 20
Since the cassette opening 23 does not face the direction in which the user puts his finger when opening and closing the case (the portion of the outer surface of the casing near the recess 41), the magnetic tape facing the opening 23 when opening the case 1 (see FIG. (Not shown) or the like can be opened and closed without touching the fingers. Therefore, the cassette storage operation can be easily performed without problems such as tape contamination due to finger contact.

In the above embodiment, the ribs 45 are provided so that the shaft insertion holes 22 of the two cassettes 20 are completely connected. With this configuration, the structure of the conventional anti-rotation projection 42 can be made substantially the same as the conventional one by simply increasing the height. But,
The present invention is not limited to the above configuration. That is, according to the present invention, if the height of the ribs 45 in the front-rear direction of the cassette is reduced, the two cassettes 20a and 20b can be stacked so that their outer contours coincide. in this case,
The opening of the shaft insertion hole 22 has a flat shape as shown by a solid line in FIG.

Therefore, in the case shown in FIG. 4, if the rotation preventing projection is appropriately formed in a flat shape in accordance with the communicating portion of the shaft insertion hole 22, the opening shown by the solid line in FIG. 4 is inserted. Thus, the rotation of the reel can be prevented as in the conventional case. When the front and rear positions of the two cassettes are completely matched, the rib 45 is not necessary, and the cassette storage case 1 according to the present invention can be made the smallest in the overall shape. Further, instead of the rib 45, a case wall may be formed so as to form a cut portion inside the case.

Next, a second embodiment of the present invention will be described with reference to FIG. The difference between the present embodiment and the first embodiment lies in that the cassette storage case 1 is made thin and three cassettes can be stored. Therefore, members having the same functions as those described above are denoted by the same reference numerals, and description thereof will be omitted.

That is, the cassette storage case 1 in the present embodiment, as apparent from comparison with FIG.
The three cassettes 20a, 20b, and 20c are configured to be stacked and housed so that the shaft insertion holes 22 of the three cassettes 20a, 20b, and 20c communicate with each other, and that the respective thickness increasing portions 21 face in opposite directions.

In order to stack the three cassettes 20a to 20c in the opposite direction and to connect the shaft insertion holes 22, it is necessary to provide two ribs 45 shown in the first embodiment. Therefore, in the present embodiment, the rib 45 is located at a corner of the large wall portion 6 facing the rib 45.
A second rib 45a having the same function as that described above is provided. Also,
In order to reduce the thickness of the cassette storage case 1, a concave portion 5c for receiving one of the thickness increasing portions 21 of the cassette 20c is formed on the opening side of the large wall portion 6. The recess 5c
Is formed at a position facing the asbestos recess 5b shown in the first embodiment.

According to the cassette storage case 1 having the above-described structure, the ribs 45 and 45a are formed even though the three cassettes 20a to 20c are stacked, so that the shaft insertion hole 22 is in a communicating state. become. And
When the three cassettes 20a to 20c are stacked and inserted into the pocket 4, and the lid 2 and the casing 3 are closed, the rotation-preventing projection 42 is inserted through the shaft insertion hole 22, and the tape is removed. Prevention of loosening. The length L1 of the cassette storage case 1 is the same as that of the first embodiment, and the thickness L2 is
Although the thickness increases by 0c, the thickness increase portion 21 is received in the concave portion 5c, so that the thickness becomes significantly thinner as compared with a case where the layers are simply overlapped.

Next, a third embodiment of the present invention will be described with reference to FIG. The features of the present embodiment are that the three cassettes 20a to 20c are housed and the length L1 is reduced. That is, in the first embodiment, it has been described with reference to FIG. 4 that when two cassettes are overlapped with the thickness increasing portions reversed, the shaft insertion holes 22 do not completely coincide with each other but are in a communicating state. Therefore, in the present embodiment, as shown in FIG. 6, the thickness increasing portions 20 of the three cassettes 20 a to 20 c are alternately overlapped and stored in the cassette storage case 1.

In this case, the three cassettes 20a to 20a-2
Since 0c is completely overlapped, the ribs 45 and 45a described in the first and second embodiments become unnecessary, and FIG.
As shown in the figure, no ridge is formed in this embodiment. However, the concave portion 5c for receiving the increased thickness portion 21 of the cassette 20c is formed. In addition, since the rotation preventing projection 42a for inserting the shaft insertion hole 22 is narrowed as shown by the solid line in FIG. 4, the shaft insertion hole 22 is in a partially communicated state.
It is formed in a flat shape so that the narrowed portion can be inserted.

According to the cassette storage case 1 having the above-described configuration, the three cassettes 20a to 20
c is inserted as shown in the figure, and the lid 2 and the casing 3 are closed to close the rotation preventing projections 4.
2a is inserted through the shaft insertion hole 22. Therefore, the rotation of the magnetic tape is reliably stopped, and the length L1 is reduced in accordance with the deletion of the ribs 45 and 45a. The thickness L2 is the same as in the second embodiment.

When the three cassettes 20a to 20c are stacked as in this embodiment, the shaft insertion hole 22 is narrowed as described above when viewed from the insertion side.
However, when viewed from the side as shown in FIG. 6, it is in a communicating state although it is curved. Therefore, the shape of the rotation preventing projection 42a is determined by changing its rotation radius (the support shaft 17 shown in FIG. 1).
May be formed in a so-called bow shape substantially corresponding to the rotation radius with the fulcrum as a fulcrum). In this case, the rotation preventing projection 42a can be made slightly thicker, and the strength can be improved.

Next, a fourth embodiment of the present invention will be described with reference to FIG. It should be noted that a feature of the present embodiment is that the three cassettes 20a to 20c are configured to be stored in a direction opposite to that of the second embodiment. That is, as shown in FIG. 7, the concave portion 5 a is formed on the inner surface of the large wall portion 6, which constitutes the pocket 4, and the concave portion 5 b is formed on the inner surface of the small wall portion 43. Therefore, each of the thickness increasing portions 21 of the cassettes 20a and 20c
Is received in the recesses 5a and 5b in the pocket 4.

On the other hand, the rib 45 is connected to the casing 3
The rib 45a is formed at a central portion in the pocket 4. Therefore, the above 3
The individual cassettes 20a to 20c are superimposed as shown in the drawing and stored in the cassette storage case 1. In the configuration shown in this embodiment, the length L1 and the thickness L2 are the same as those in the second embodiment, but the ribs 45, 4
Since 5a is formed, it also functions as a reinforcing rib, and the strength of the entire case 1 is also improved.

Although the embodiments of the present invention have been described above, the present invention can be modified as follows. That is, the third
As shown in the embodiment, a storage form in which the front and rear ends of the cassette are aligned may be employed. The present invention is not limited to the case where the number of cassettes is two or three as in each of the above-described embodiments.
In the case of an even number or more, the structure is an extension of the case of two, and in the case of an odd number, the structure is an extension of the structure of three.

[0045]

As described above, in the cassette storage case according to the present invention, a plurality of cassettes are superimposed one on the other and the thickened portion on the outside of the superposed cassettes is recessed on the inner surface of the case. It is configured to be accepted by. Therefore, since the thickness increasing portions of the plurality of cassettes are stacked so as to directly overlap at alternately displaced positions, the amount of protrusion of the thickness increasing portion can be substantially halved due to the overlap, and one protrusion is provided for each cassette. Compared to using a case, the storage space can be significantly reduced, and the outer thickened parts are each received in the recess formed on the inner surface of the case, so the case itself becomes a thin case and the cassette storage space is reduced. Can be smaller. As a result, not only can a plurality of cassettes be stacked, that is, stacked in a single cassette storage case, but even if the recording time is long, the cassettes can be stored together, and related cassettes can be individually stored. Usability is improved as compared with storage.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cassette storage case showing a first embodiment of the present invention;

FIG. 2 is a perspective view showing a cassette storage state according to the present invention;

FIG. 3 is a sectional view of a main part showing a cassette storage state in the present invention.

FIG. 4 is a plan view showing a cassette stacking state according to another embodiment of the present invention.

FIG. 5 is a sectional view of a cassette storage case according to a second embodiment of the present invention.

FIG. 6 is a sectional view of a cassette storage case showing a third embodiment of the present invention.

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

FIG. 8 is a perspective view showing a conventional cassette storage case.

FIG. 9 is a perspective view showing a conventional cassette storage case.

[Explanation of symbols]

 Reference Signs List 1 cassette storage case 2 lid 3 casing 4 pocket 5a, 5b recess 6 large wall 8 wall 9 side wall 17 support shaft 20a, 20b magnetic tape cassette 21 thickness increasing portion 22 shaft insertion hole 42, 42a rotation preventing protrusion 41 Recessed portion 43 on outer surface of casing 43 Small wall portion 44 Vertical wall portion 45, 45a Rib

Claims (2)

(57) [Scope of request for utility model registration] 1. A housing for accommodating an end of a magnetic tape cassette.
Cover member having a pocket for
A magnetic tape cassette with the
A plurality of and even number of the tapes.
Directly stacking cassettes with their front and back alternately
Also, penetrate the hub hole of each magnetic tape cassette at the same time
The anti-rotation protrusion is configured and superimposed
The cassettes located on both outer sides of the magnetic tape cassette
A recess for receiving the thickened part of the case is formed on the inner surface of the case.
In the magnetic tape cassette being formed, for receiving the thickened portion of the magnetic tape cassette,
The recess is formed in a small wall portion defining the pocket of the lid member.
The inner surface of the large wall in the facing area and the inner surface of the casing
The inner surface of the pocket of the lid member,
Face the surface of the tape cassette opposite to the exposed surface of the magnetic tape.
The hub of the magnetic tape cassette overlapped
Insert the magnetic tape so that the center lines of the insertion holes are almost aligned.
Positioning means for regulating the position of the cassette is provided.
A magnetic tape cassette storage case. 2. A housing for accommodating an end of a magnetic tape cassette.
Cover member having a pocket for
A magnetic tape cassette with the
Storage case, wherein a plurality of and an odd number of the tapes are provided.
Directly stacking cassettes with their front and back alternately
Also, penetrate the hub hole of each magnetic tape cassette at the same time
The anti-rotation protrusion is configured and superimposed
The cassettes located on both outer sides of the magnetic tape cassette
A recess for receiving the thickened part of the case is formed on the inner surface of the case.
In the magnetic tape cassette being formed, for receiving the thickened portion of the magnetic tape cassette,
The concave portion is near the opening / closing end of the inner surface of the casing portion, and
An inner surface of the large wall portion of the lid member, wherein the casing portion
The magnetic tape is provided at a position opposed to a portion of the inner surface near the opening / closing end, and is an inner wall surface of the pocket of the lid member, wherein
Face the surface of the tape cassette opposite to the exposed part of the magnetic tape.
The hub of the magnetic tape cassette overlapped
Insert the magnetic tape so that the center lines of the insertion holes are almost aligned.
Make sure that there are ribs that regulate the position of the cassette.
Characteristic storage case for magnetic tape cassette.