JP2569407Y2 - Magnetic tape cassette storage case - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case for storing a magnetic tape cassette.

[0002]

2. Description of the Related Art Generally, a magnetic tape cassette such as a video tape and an audio tape is housed in a case when not in use to protect the tape from dust and the like. The storage case includes a case main body having a magnetic tape cassette storage section, and a case cover hinged to the case main body so as to be openable and closable. And
The case main body has a peripheral wall surrounding at least a part of the periphery of the magnetic tape cassette accommodating portion, and the case cover has a sliding contact wall that slides on the peripheral wall of the case main body when closing the case cover. doing.

Further, the above-mentioned storage cases include, for example, Japanese Utility Model Laid-Open Nos. 4-13589 and 4-13591,
As disclosed in each publication of No. 1111, one of the peripheral wall and the sliding contact wall has a convex portion, and the other has a concave portion which engages with the convex portion when the case cover is closed. This prevents the case cover once closed from being opened carelessly.

[0004]

In the conventional storage case, the case cover does not accidentally open in a normal use state due to the engagement between the projection and the recess. When the storage case is subjected to an impact load, such as when the storage case is dropped on the floor, the engagement may be disengaged, and in such a case, the case cover is opened and the magnetic force is released. There has been a problem that the tape cassette is thrown out of the storage case and the magnetic tape cassette may be damaged.

The present invention has been made in view of such circumstances, and it is possible to prevent the case cover from being opened carelessly even when the storage case receives an impact load. It is an object of the present invention to provide a magnetic tape cassette storage case that can be used.

[0006]

The magnetic tape cassette storage case according to the present invention has a multi-lock structure by forming not only one recess but also two or more recesses in a predetermined arrangement so as to achieve the above object. It was made.

That is, as described in claim 1, a case main body having a magnetic tape cassette accommodating portion and a case cover hinged to the case main body so as to be openable and closable, wherein the case main body is provided with the magnetic tape A peripheral wall surrounding at least a part of a periphery of the cassette housing portion, and the case cover has a sliding contact wall that comes into sliding contact with the peripheral wall of the case body when the case cover is closed, and the peripheral wall and the sliding contact wall A magnetic tape cassette storage case in which a convex portion is formed on one of the convex portions and a concave portion that engages with the convex portion when the case cover is closed is formed on the other side of the wall on which the concave portion is formed. At least one recess is formed in series at a predetermined distance from the recess in a direction in which the peripheral wall and the sliding contact wall are in sliding contact with each other;
The method is characterized in that only one of the protrusions is formed for the plurality of recesses formed in series.

[0008] The above-mentioned "at least one concave portion is formed in series at a predetermined interval from the concave portion" means that "one concave portion is formed at a predetermined interval from the concave portion"; It is intended to include a mode in which "two or more recesses are formed in series at different intervals with respect to the recesses".

Each of the "concave portions" may be formed by forming a part of the wall in a concave shape, or may be a hole penetrating the wall.

[0010] Only one "projection" is formed for the plurality of recesses formed in series. If a plurality of recesses are formed in a plurality of places on the case cover, respectively. In this case, only one protrusion is formed for each of the plurality of recesses at each location.

The height of the wall on which the recesses are formed, the height between the recesses, the pitch between the recesses, the depth of the recesses, and the like are not limited to specific dimensions.
For example, as described in claim 2, the height of the wall is approximately 10 mm, the pitch is approximately 4 mm, and the depth is approximately 0.5.
mm.

[0012]

As described above, in the magnetic tape cassette storage case according to the present invention, one of the peripheral wall of the case body and the sliding contact wall of the case cover has a convex portion, and the other has a convex portion. Since the concave portion that engages with the convex portion when the case cover is closed is formed, in a normal use state, the closed case cover is inadvertently opened by the engagement between the convex portion and the concave portion. It will not be lost.

Further, in the present invention, a predetermined interval is provided on the wall having the recess (hereinafter referred to as "first recess") in a direction in which the peripheral wall and the sliding contact wall are in sliding contact with each other. Since at least one concave portion (hereinafter, referred to as “second concave portion, third concave portion,...”) Is formed in series, the storage case receives an impact load due to dropping to the floor or the like, thereby causing the convex portion Even if the engagement between the second concave portion and the first concave portion is released, the convex portion is engaged with the second concave portion (or the third concave portion or the like), so that the case cover is opened carelessly. There is no end. If one wall has a first concave portion and a second concave portion, and the other wall has a first convex portion and a second convex portion, the first concave portion has the first convex portion, and the second concave portion has the second convex portion. In the case where the portions are configured to be engaged, the storage case falls and receives an impact load, and when the first protrusion is disengaged from the first recess and is engaged with the second recess, the second protrusion is engaged. As a result, the two walls are bent in a direction away from each other, and the first convex portion is easily detached from the second concave portion. As a result, the impact load is applied. In the event that the first convex portion comes off the first concave portion and also comes off the second concave portion, the case cover is easily opened carelessly, and the convex portion runs on the surface of the wall even if it is not opened. Therefore, there is a problem that the case cover is opened halfway. However, according to the present invention, as described above, since only one convex portion is formed for the plurality of concave portions formed in series, the convex portion separates from the first concave portion and engages with the second concave portion. Even if they are to be combined, the other convex parts do not run on the surface of the wall where the concave part is formed, and the case cover is carelessly when the storage case falls due to the rising of the convex part. It is possible to avoid the possibility of being opened or half-open.

As described above, according to the present invention, the adoption of the multiple lock structure can prevent the case cover from being opened carelessly even when the storage case receives an impact load. . Therefore, it is possible to prevent a situation in which the magnetic tape cassette is thrown out of the storage case due to the opening of the case cover, and the magnetic tape cassette is damaged.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing one embodiment of a magnetic tape cassette storage case according to the present invention.

This magnetic tape cassette storage case 10
Is a storage case for an 8 mm video tape cassette, comprising a case main body 14 having a magnetic tape cassette storage section 12 for storing an 8 mm video tape cassette, and a case main body formed integrally with the case main body 14. 14 and a case cover 16 hinged so as to be openable and closable.

The case main body 14 has a peripheral wall 18 surrounding the periphery of the magnetic tape cassette accommodating section 12. The peripheral wall 18 has a high portion and a low portion, but four corner portions are high. on the other hand,
The case cover 16 has a sliding contact wall 20 that slides on the peripheral wall 18 of the case body 14 when the case cover 16 is closed. This sliding contact wall 20 is formed at the same height on the other three sides (the front side and the left and right sides) except for one side that is hinged, and the inner surface of the sliding contact wall 20 is in contact with the outer surface of the peripheral wall 18. It comes into sliding contact.

On the inner surfaces of the right and left side walls of the sliding contact wall 20 of the case cover 16, convex portions 22 are formed at two locations near the corner portion on the side opposite to the hinge connection side. Further, concave portions 24 which engage with the respective convex portions 22 when the case cover 16 is closed are formed on the outer surfaces of the left and right side walls of the peripheral wall 18 of the case main body 14, respectively. The engagement between the projections 22 and the recesses 24 prevents the case cover 16 once closed from being opened carelessly.

Further, concave portions 26 are formed at a predetermined interval from the concave portions 24 on the peripheral wall 18 of the case body 14 above the concave portions 24, respectively. That is, the peripheral wall 1
8, concave portions 24 and concave portions 26 are formed in series on the outer surfaces of the left and right side walls, respectively, in the direction in which the peripheral wall 18 and the sliding contact wall 20 slide.

The height of the peripheral wall 18 at the portion where the concave portions 24 and 26 are formed is set to approximately 10 mm, the pitch between the concave portions 24 and 26 is set to approximately 4 mm, and the depths of the concave portions 24 and 26 are both set to approximately 0.5 mm. ing. The height of the sliding contact wall 20 of the case cover 16 is set to approximately 16 mm, and the height of the projection 22 is set to approximately 0.5 mm.

Next, the operation of this embodiment will be described.

As shown in FIG. 2A, the case cover 1
It has already been described that the sliding contact wall 20 of the case cover 16 comes into sliding contact with the peripheral wall 18 of the case body 14 when the cover 6 is closed.
At this time, when the case cover 16 is pushed against the case body 14, as shown in FIG. 2B, the convex portion 22 formed on the sliding contact wall 20 rides on the outer surface of the peripheral wall 18 and then the concave portion 2.
Fit into 6. In this state, the case cover 16 is not yet completely closed, but when the case cover 16 is further pushed, as shown in FIG. 2C, the convex portion 22 rides on the outer surface of the peripheral wall 18 again and then fits into the concave portion 24. As a result, the case cover 16 is completely closed.

The case cover 1 once closed as described above
6 is a convex portion 22 and a concave portion 24 in a normal use state.
It does not accidentally open due to the engagement with. Further, in this embodiment, the recess 2 is located above the recess 24.
Since the concave portion 26 is formed at a predetermined interval from 4,
The storage case 10 receives an impact load due to a drop to the floor or the like,
As a result, even if the protrusion 22 and the recess 24 are disengaged from each other, the protrusion 22 and the recess 26 are engaged with each other, so that the case cover 16 may be inadvertently opened. Absent. Also, if a plurality of convex portions are formed,
For example, in FIG. 2C, when another convex portion is formed on the convex portion 22 and the convex portion is engaged with the concave portion 26, the receiving case 10 falls and receives an impact load, Part 22
Is disengaged from the concave portion 24 and engages with the concave portion 26, the upper convex portion (not shown) rides on the outer surface of the peripheral wall 18 without the concave portion to be engaged.
0 is bent in a direction away from each other (in the direction away from side to side in the figure), and the convex portion 22 is also easily detached from the concave portion 26. Although the case cover 16 may come off and open inadvertently, or even if it does not open, the case cover 16 may be in a half-opened state. Since only one portion 22 is formed, even when the convex portion 22 is disengaged from the concave portion 24 and engages with the concave portion 26, there is no risk that another convex portion will ride on the surface of the peripheral wall 18, and Inadvertent opening or half-opening of the case cover due to riding up can be avoided.

As described above, according to this embodiment, the use of the double lock structure prevents the case cover 16 from being opened carelessly even when the storage case 10 receives an impact load. can do. Therefore, it is possible to prevent the 8 mm video tape cassette from being thrown out of the storage case 10 due to the opening of the case cover 16 and causing damage to the 8 mm video tape cassette.

In the above embodiment, the convex portion 22 and the concave portions 24 and 26 are formed on the left and right side walls of the sliding wall 20 and the peripheral wall 18.
The convex portion 22 and the concave portions 24 and 26 may be formed on the front wall (the wall on the side opposite to the hinge connection) of this embodiment. In this case, the same operation and effect as those of the above embodiment can be obtained. .

In the above embodiment, the concave portion 26 is formed on each of the left and right side walls of the peripheral wall 18. However, the concave portion 26 may be formed on only one of the right and left side walls. In this case, it is possible to prevent the case cover 16 from being inadvertently opened.

Further, in the above embodiment, the recess 24
Although the cross-sectional shapes of the concave portion 26 and the concave portion 26 are substantially the same as the convex portion 22, the cross-sectional shapes may be different from each other, for example, the depth of the concave portion 26 may be smaller than that of the concave portion 24.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a magnetic tape cassette storage case according to the present invention.

FIG. 2 is a sectional view of a main part showing the operation of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Magnetic tape cassette storage case 12 Magnetic tape cassette storage part 14 Case main body 16 Case cover 18 Peripheral wall 20 Sliding contact wall 22 Convex part 24, 26 Recess

Claims (2)

(57) [Scope of request for utility model registration] 1. A case main body having a magnetic tape cassette accommodating portion, and a case cover hinged to the case main body so as to be openable and closable, wherein the case main body is at least part of a periphery of the magnetic tape cassette accommodating portion. And the case cover has a sliding contact wall that slides on the peripheral wall of the case body when closing the case cover, and a convex portion is formed on one of the peripheral wall and the sliding contact wall. In the magnetic tape cassette storage case, on the other hand, a concave portion that engages with the convex portion when the case cover is closed is formed, the peripheral wall and the sliding contact wall are formed on a wall on which the concave portion is formed. At least one concave portion is formed in series at a predetermined distance from the concave portion in a direction in which the concave portions slide, and the convex portion corresponds to the plurality of concave portions formed in series. Magnetic tape cassette storage case only one being formed, it is characterized by Te. 2. The height of the wall on which the concave portions are formed at the concave portion forming portion is approximately 10 mm, the pitch between the concave portions is approximately 4 mm, and the depth of each concave portion is approximately 0.5 mm.
2. The magnetic tape cassette storage case according to claim 1, wherein: