JP2006016025A - Storing case for tape cassette - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a storing case for a tape cassette which has no possibility of disconnecting of an engagement by preventing a locking piece from being displaced from a second hinge part in the opposite direction even when a strong impact force is applied on the hinge part from the outside of the hinge part in the inward direction. <P>SOLUTION: An extension part 45a extending to the locking piece 14 is provided on a top plate 35 of a lid part 12 under the condition that the lid part 12 is closed to a storing part 11 and an engaging part 39 of an outer plate 29 is engaged to an engagement receiving part 44 of the locking piece 14, and the locking piece 14 is prevented from displacing a second hinge part 15 to the opposite direction by this extending part 45a. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a storage case for a magnetic tape cassette used for storing and protecting a tape cassette at a broadcasting station.

  In general, a tape cassette used in a broadcasting station is larger and heavier than a commercially available video tape cassette or the like. Therefore, when the tape cassette is dropped, the impact on the tape cassette is large, which causes damage to the tape cassette. For this reason, in order to prevent the tape cassette from being damaged by an impact, the tape cassette is stored in a dedicated synthetic resin storage case during storage or transport.

As an example of such a conventional tape cassette storage case, a tape cassette storage case including a storage portion, a lid portion, and a hinge portion is known (see, for example, Patent Document 1).
JP 2002-179176 A

  FIG. 5 is a view showing a conventional tape cassette storage case described in Patent Document 1. As shown in FIG. As shown in the figure, a conventional tape storage case 100 has a hard type case main body, and the case main body includes a storage portion 101 for storing a cassette case, and a lid that covers the storage portion 101. Part 102, and a back plate 103 that connects storage part 101 and lid part 102.

  Further, in an environment where a large amount of tape cassettes are handled like a broadcasting station, the tape cassette storage cases are often stacked and stored or transported in a state where the tape cassettes are stored in a tape cassette storage case. Therefore, the conventional tape cassette storage case is provided with a rib 102a erected from the peripheral edge on the upper surface of the lid 102 of the tape cassette storage case 100, as shown in FIG. By fitting the rib 102a with a recess or a step formed on the bottom of the storage part of another tape cassette storage case to be overlaid, the cassette case stored with the impact that the stacked tape cassette storage case collapses pops out. To prevent damage.

However, the tape cassette storage case 100 according to the conventional product has a strong impact force when it is dropped in the engagement between the engaging portion 44 of the lock piece 14 'and the engaging portion 39 of the lid portion 102 as the main engaging mechanism. When the hinge portion 15 is applied in the direction from the outside to the inside of the hinge portion 15, the engagement may be disengaged.
The present invention has been made to solve such a problem, and even when a strong impact force is applied to the hinge portion 15 in the direction from the outside to the inside of the hinge portion 15 at the time of dropping, the engagement is not released. It aims at providing the storage case for tape cassettes.

In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that a storage portion for storing a tape cassette, a lid portion for covering the storage portion, and the storage portion and the lid portion are connected to each other so as to be opened and closed by a first hinge portion. A tape cassette storage case including a back plate, wherein an outer plate is erected on the side opposite to the first hinge portion and an engaging portion is formed on the outer surface of the outer plate. On the other hand, a circumferential plate is erected on the opposite side surface of the first hinge portion in the storage portion, and a lock piece is rotated with respect to the circumferential plate via a second hinge portion at a central lower end portion of the circumferential plate. In the tape cassette storage case, which is supported in such a manner that an engagement receiving portion engageable with the engagement portion of the outer plate is formed on the side of the lock piece facing the peripheral plate. Closed with respect to the storage portion, the engagement piece receiving portion of the lock piece In the state in which the engaging portion is engaged, an extending portion extending to the lock piece is provided on the top plate of the lid portion, and the extension of the lock piece from the second hinge portion in the opposite direction is provided. It is characterized by being prevented by the installation part.
According to a second aspect of the present invention, there is provided the tape cassette storage case according to the first aspect, wherein the lock has a convex shape, and the front end of the convex shape serves as a knob portion when the lock is released. When an impact force is applied to the case, both ends of the tip come into contact with the extending portion.

With the configuration as described above, even if a strong impact force is applied to the hinge portion 15 in the direction from the outside to the inside of the hinge portion 15, the extension piece prevents the lock piece from being displaced in the opposite direction from the second hinge portion. As a result, a tape cassette storage case that does not disengage can be obtained.
In addition, when the lid portion is opened, the lid portion can be easily opened from the storage portion by using this knob portion.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of a storage case for a tape cassette according to an embodiment of the present invention, showing a state in which the lid is opened, and FIG. 2 is a half-closed lid of the storage case for a tape cassette of FIG. FIG. 3 is a view showing a state where the lid of the tape cassette storage case of FIG. 1 is closed. It is a figure which shows the lock piece periphery part of the storage case for tape cassettes concerning embodiment of this invention of FIG. 4, (a) is the front view, (b) is an AA arrow line view of (a). .

  As shown in FIG. 1 to FIG. 3, the tape cassette storage case 10 according to the present invention can cover the storage portion 11 for storing the tape cassette C indicated by the phantom line of the two-dot chain line, and the storage portion 11. And the back plate 13 via the first hinge portion 41 that connects the storage portion 11 and the lid portion 12 so as to be openable and closable. Further, the tape cassette storage case 10 includes a lock piece 14 supported by the storage portion 11 via the second hinge portion 15. The tape cassette storage case 10 is integrally molded using a polymer resin such as polypropylene (PP).

  The storage unit 11 has a bottom plate 16 having a substantially rectangular shape in plan view. Peripheral plates 17, 18, 19, and 20 are formed upright on the long edge and short edge of the bottom plate 16 so as to surround the periphery of the portion in which the tape cassette C is stored. The peripheral plate 17 is disposed on the front side of the storage unit 11, the peripheral plate 18 is disposed on the back side of the storage unit 11, and the peripheral plates 19 and 20 are disposed on the left / right side of the storage unit 11.

  A pair of reel locking ribs 25 are formed at the center of the bottom plate 16 of the storage unit 11. By inserting a reel hole of a winding hub (not shown) provided in the magnetic tape cassette C into the reel locking rib 25, the magnetic tape cassette C is positioned in the storage portion 11. A pair of first engaging portions 28 are formed at both ends of the front side surface (front side surface in FIG. 1) of the peripheral plate 17 in the storage portion 11.

On the other hand, the lid 12 has a substantially rectangular top plate 35 as viewed from above in FIG. An outer plate 29 is erected on one long edge side of the top plate 35, and outer plates 30 and 31 are erected on two short edge sides of the top plate 35.
The lid 12 has a top plate 35 connected to the back plate 13 via the first hinge portions 40 and 41 on the other long edge side. The storage portion 11 is connected to the back plate 13 via the first hinge portion 40 at the long edge located on the peripheral plate 18 side. The storage portion 11 and the lid portion 12 are configured to be openable and closable by the first hinge portions 40 and 41 of the back plate 13. With the lid 12 closed, the inner surfaces of the outer plates 29, 30, 31 of the top plate 35 of the lid 12 are configured to face the outer surfaces of the peripheral plates 17, 19, 20 of the storage unit 11. Yes.

On the outer surface of the top plate 35 of the lid portion 12, ribs 45, 46, 47, and 48 are projected along the periphery of the top plate. These ribs 45, 46, 47, and 48 are configured to be able to engage with recesses or stepped portions in the storage portion of the tape cassette storage case. Thus, when the tape cassette storage cases are overlapped with each other, the lid portion of one tape cassette storage case is engaged with the storage portion of the other tape cassette storage case.
Further, a label sheet storage area 50 is partitioned.

  A pair of first locking portions 32 is formed inside the outer plate 29 located on the opposite side of the lid portion 12 from the first hinge portions 40 and 41. The first locking portion 32 is configured to engage with the first engagement portion 28 in the peripheral plate 17 of the storage portion 11 when the lid portion 12 is closed.

A second engagement portion 39 (FIG. 2) is formed on the outer surface of the outer plate 29 of the lid portion 12.
A plate-like lock piece 14 having a trapezoidal shape is formed at the lower end of the center of the peripheral plate 17 on the front side of the storage unit 11. A second hinge portion 15 is formed at the boundary between the lock piece 14 and the peripheral plate 17, and the lock portion 14 can be inclined to the peripheral plate 17 side by the second hinge portion 15. On the other hand, it is supported movably. A second locking portion 44 that can be engaged with the second engaging portion 39 formed on the outer plate 29 of the lid portion 12 is formed at the distal end portion of the lock piece 14.

  In the tape cassette storage case 10, when the lid portion 12 is closed with respect to the storage portion 11, the first engagement portions 31 of the lid portion 12 engage with the first locking portions 28, respectively. The engaging portion 44 is engaged with the second engaging portion 39 of the lid portion 12 so that the storage portion 11 and the lid portion 12 can be locked to each other.

According to the present invention, the lock piece 14 is formed with a knob portion 143 (FIG. 4), which will be described later, and both ends 141 and 142 are formed with notches that are shorter than the knob portion 143.
On the other hand, the width of the rib 45 located on the front side of the lid portion 12 is wider than that of the conventional product (dotted line portion 45 in FIG. 1), and the rib 45 is formed with a notch portion 45b. When this is closed, the knob portion 143 is accommodated in this portion, and at the same time, the top portions of the notches 141 and 142 are pressed by the wide rib 45.
FIG. 3 shows a state in which the lid portion is closed, and it can be seen that the knob portion 143 is housed in the notch portion 45 b and the top portions of the notch portions 141 and 142 are simultaneously pressed by the wide rib 45.

FIG. 4 is a view showing the structure of the lock piece 14 according to the present invention in an easily understandable manner.
In the figure, reference numeral 14 denotes a lock piece of a tape cassette storage case, which originally had a trapezoidal shape (see (a)) as seen from the front view. The knob portion 143 is formed leaving only the portion.
The lengths of the notches 141 and 142 are equal to the thickness of the extended portion 45 extended outward from the top plate 35 of the lid portion according to the present invention.

In the cross-sectional view of FIG. (B), an extended portion 45 not provided in the conventional product is provided on the top plate 35 of the lid portion, and the distal end of the extended portion 45 is an area of the lock piece 14 (more precisely, a notch portion). 141, 142).
Then, with the lid portion closed with respect to the storage portion, the engagement portion 39 of the outer plate 29 engages with the engagement receiving portion 44 of the lock piece 14, and at the same time, the distal end of the extension portion 45 of the lock piece 14 The tops of the notches 141 and 142 are pressed.

  Therefore, even if the tape cassette storage case falls on the floor at any moment and a large impact force F (FIG. (B)) is applied to the bottom corner, the notches 141 and 142 of the lock piece 14 are applied. Therefore, the lock piece 14 cannot be displaced in the upper direction. Therefore, the engagement receiving portion 44 of the lock piece 14 and the engagement portion 39 of the outer plate 29 are not connected to each other. There is no disengagement.

As described above, according to the present invention, even if a strong impact force is applied to the hinge portion 15 in the direction from the outside to the inside of the hinge portion 15, the lock piece is displaced from the second hinge portion in the opposite direction. Since it is prevented by the extended portion, a tape cassette storage case that is not disengaged can be obtained.
In addition, when the lid portion is opened, the lid portion can be easily opened from the storage portion by using this knob portion.

It is a perspective view of the storage case for tape cassettes concerning embodiment of this invention, and is a figure which shows the state which opened the cover part. It is a figure which shows the state which closed the cover part of the storage case for tape cassettes of FIG. It is a figure which shows the state which closed the cover part of the storage case for tape cassettes of FIG. It is a figure which shows the lock piece periphery part of the storage case for tape cassettes concerning embodiment of this invention, (a) is the front view, (b) is an AA arrow line view of (a). It is a figure which shows the conventional storage case for tape cassettes described in patent document 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Tape cassette storage case 11 This invention Storage part 12 Cover part 13 Back plate 14 Lock piece 141, 142 Notch 143 Knob part 15 Second hinge part 16 Bottom plate 17, 18, 19, 20 Perimeter plate 25 Reel latch Rib 28 First engaging portion 29, 30, 31 Outer plate 32 First locking portion 35 Top plate 39 Second engaging portion 40, 41 First hinge portion 44 Engagement receiving portion 45a Extension portion 45b Notch portion 45, 46, 47, 48 Rib 50 Label sheet storage area C Tape cassette F Large impact force applied to the bottom corner

Claims (2)

  A tape cassette storage case comprising: a storage unit that stores a tape cassette; a lid that covers the storage unit; and a back plate that connects the storage unit and the lid so as to be opened and closed by a first hinge unit. In the lid portion, an outer plate is erected on the opposite side surface of the first hinge portion, and an engaging portion is formed on the outer side surface of the outer plate, while the storage portion includes the first hinge portion. A peripheral plate is erected on the opposite side surface, and a lock piece is supported at the central lower end portion of the peripheral plate so as to be rotatable with respect to the peripheral plate via a second hinge portion, and the lock piece is opposed to the peripheral plate. In the tape cassette storage case having an engagement receiving portion engageable with the engagement portion of the outer plate on the side, the lid portion is closed with respect to the storage portion and the engagement receiving portion of the lock piece is received. In the state where the engaging part of the outer plate is engaged with the part, up to the lock piece Bill extending portion provided on the top plate of the lid, the storage case tape cassette, characterized in that prevented by the extended portion from being displaced in the opposite direction the locking piece from the second hinge portion.   The lock piece has a convex shape, and the tip portion of the convex shape serves as a knob portion when the lock is released, and both ends of the tip come into contact with the extended portion when an impact force is applied to the storage case. The tape cassette storage case according to claim 1, wherein

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