JP2000226094A - Storage case for magnetic cassette tape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the shirt and deformation of the side wall part of a storage case caused by the elastic deformation of a member by providing a fitting part formed inside relative to a lid part and linger than the longitudinal direction length of a positioning rib on a positioning rib, and allowing a fitting part to be in contact with the side wall part of storage part. SOLUTION: The storage case 101 is such that, in its closed state, a positioning ribs 12a, 12b provided on the inside face of the second side wall part 9 of a lid part 2 are fitting in with the fitting recess parts 11a, 11b of the first side wall part 5 of a storage part 1 respectively. Furthermore, fitting parts 15a, 15b being in parallel with the positioning ribs 12a, 12b and extended therein come in contact with the first side wall part 5. This leads to a state where the second side wall part 9 and fitting parts 15a, 15b hold the first side wall part 5 and joint recess parts 11a, 11b, as a result, a shift and deformation of the second side wall part 9 are prevented with respect to its lateral direction. In addition, the fitting parts 15a, 15b have a role of each deformation and shift prevention member of the positioning ribs 12a, 12b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case for accommodating a magnetic tape cassette, and more particularly to a measure for preventing deformation of the case.

[0002]

2. Description of the Related Art Various types of storage cases (storage cases) for magnetic tape cassettes have been proposed according to the form of the magnetic tape cassette to be stored. Here, FIGS.
An example of a conventional storage case and a magnetic tape cassette for a digital video cassette (DVC) will be described with reference to FIG.

A storage case 150 shown in FIG. 13 includes a storage section 1 for storing the magnetic tape cassette 81 shown in FIG. 14, a lid 2 covering the storage section 1, and a storage section 1.
And a hinge 3 for connecting the lid 2. The storage portion 1 includes a first flat plate portion 4, a first side wall portion 5 formed integrally with an outer peripheral portion of the first flat plate portion 4, and a reel engagement formed slightly from the rear end of the first flat plate portion 4. It has ribs 6 a and 6 b and a rib 7 having a V-shaped cross section formed from the front end of the first flat plate portion 4. When the magnetic tape cassette 81 shown in FIG. 14 is stored, when properly stored, the magnetic tape cassette 81 shown in FIG.
As shown by the imaginary line in FIG. 3, it is loosely fitted in the first side wall portion 5.

[0004] The lid 2 has a second flat plate 8 and a second side wall 9 integrally formed on the three outer peripheral portions. The hinge portions 3 are provided with thin grooves 10 on both sides of the third flat plate portion 10, respectively.
a, 10b are formed, and the storage portion 1 and the lid portion 2 can be closed like a book by the grooves 10a, 10b. Then, when the storage case 50 is closed, the first side wall 5 and the second side wall 9 are combined in a state parallel to each other.

On the outside of the first side wall 5 constituting the storage section 1, there is provided an overhang 4a in which a part of the first flat plate 4 is formed in an overhang shape. When the storage part 1 and the lid part 2 are closed, the second side wall part 9 of the lid part 2 covers the outside of the first side wall part 5 of the storage part 1, but by providing the overhang part 4a, The storage section 1 does not penetrate into the lid section 2 and the entire case is kept at a constant thickness. A concave locking portion 5a is formed on the outer side surface of the first side wall portion 5, and the inner side surface of the second side wall portion 9 is engaged when the storage portion 1 and the lid portion 2 are closed. The locking projection 9a is located at a position corresponding to the stop 5a.
Are formed. Therefore, when the storage part 1 and the lid part 2 are closed, the locking projection 9a is locked to the locking part 5a, and the unexpected opening movement of the storage part 1 and the lid part 2 is prevented.

In the first side wall 5, engagement recesses 11a, 11
b are formed, and the same number of positioning ribs 62a and 62b as the number of engagement recesses are provided on the inner side surface of the second side wall portion 9. When the case is closed, the engaging recess 11a engages with the positioning rib 62a. Similarly, the engaging recess 1
1b is engaged with the positioning rib 62b. Due to these engagements, the first side wall 5 and the second side wall 9 do not move in the direction parallel to the side walls. Also, when closing the case,
First, the positioning ribs 62 are provided in the engagement recesses 11a and 11b.
Since the members a and 62b are inserted and positioning between the members is performed, the locking projections 9a and 9b and the locking portions 5a and 5b can be reliably engaged. Therefore, the lid 2 is placed at an appropriate position. Can be positioned.

[0007] Between the inner surface of the first flat plate portion 4 and the inner surface of the first side wall portion 5, a plurality of storage section side cassette holding members 13 are provided.
Is provided. Similarly, a plurality of lid-side cassette holding members 14 are provided between the inner side surface of the second flat plate portion 8 and the inner side surface of the second side wall portion 9. When the magnetic tape cassette is stored in the storage case 50 by the cassette holding members 13 and 14 and the storage case 50 is closed,
Normally, the magnetic tape cassette does not directly touch the first flat plate portion 4 and the second flat plate portion 8 and the first side wall portion 5 and the second side wall portion 9.

Next, the magnetic tape cassette 81 will be described with reference to FIG. FIG. 14 is a perspective view of the magnetic tape cassette 81 as viewed from the bottom, in which the upper half case 83 is on the lower side and the lower half case 85 is on the upper side. Circular openings 87a and 87b are formed in two places of the lower half case 85, and engaging portions 89a and 87b are integrated with a reel hub (both not shown) around which a magnetic tape is wound.
89b is exposed. The engaging portions 89a and 89b are
It has a function of feeding and winding a magnetic tape when it is mounted on a video tape recorder (VTR) or the like.

An outer lid 91 is rotatably provided on the front side of the magnetic tape cassette 81. When the outer lid 91 is mounted on a VTR or the like, the outer lid 91 rotates as shown by an arrow A in FIG. Later, the magnetic tape is pulled out. A concave front opening 93 is formed at a substantially central portion inside the outer lid 91 so as to cut out the upper and lower half cases 83 and 85, and a step 95 is formed at one end of the front opening 93. Is formed.

When the magnetic tape cassette 81 is stored in the storage case 150, the front opening 93 is turned downward and the front opening 93 is turned in the opposite direction to that shown in FIG.
With the magnetic tape cassette 8 facing the rib 7.
1 is inserted into the first side wall 5.

[0011]

In the case of the storage case described above, the cover 2 is closed in a state where the storage case is closed.
When an instantaneous or continuous pressing force acts on the second flat plate portion 8 in the vertical direction, the following phenomenon occurs.

First, the second flat plate portion 8 is elastically deformed. This elastic deformation is, for example, a deformation shown by a broken line in FIG. And as is clear from FIG.
Such deformation hinders the parallel combination of the second side wall 9 on the lid 2 side and the first side wall 5 on the storage section 1, and accordingly, the positioning ribs 62 a and 62 b and the engaging recess 11
a, 11b are also inhibited. That is, as a result of the elastic deformation, as shown in FIG. 16, the second side wall 9 and the positioning ribs 62a, 62b
Outside the storage case 150 (arrow Dr in FIG. 16)
Side), and disengagement occurs between the positioning ribs 62a, 62b and the engaging recesses 11a, 11b. Further, according to the pressing force and the result of the disengagement, the lid 2
Occurs in the direction of the storage unit 1 abnormally. In the elastic deformation, the storage case is significantly deformed in the longitudinal direction, but when the pressing is further advanced, the storage case is also deformed in the short direction, and as a result, the entire storage case 150 is distorted.

Further, if the distorted state of the storage case 150 continues for a long time, each member may be plastically deformed, and it may not be possible to restore the normal state. That is, permanent deformation occurs in the entire storage case 150, and problems occur in the sealing force, engagement force, cassette storage force, and the like of the storage case 150, which were satisfactory when the storage case 150 was processed. .

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a storage case capable of preventing the side wall of the storage case from being shifted and deformed as a result of elastic deformation of the member.

[0015]

The object of the present invention is to provide a storage case for a magnetic tape cassette according to claim 1 of the present invention, that is, a storage portion for storing a magnetic tape cassette, a lid portion covering the storage portion, A hinge portion that opens and closes the storage portion and the lid portion, wherein the storage portion includes a first portion.
A first side wall portion provided on an outer peripheral portion of the flat plate portion and the first flat plate portion, wherein the lid portion includes a second side wall portion provided on an outer peripheral portion of the second flat plate portion and the second flat plate portion; Having the second
The side wall portion includes one or more positioning ribs on an inner surface thereof, and further, when the lid portion is in a state of covering the storage portion, the engaging recess for engaging with the positioning rib is formed in the second side. In the magnetic tape cassette storage case provided on the side wall portion, the positioning rib has a fitting portion formed inward with respect to the lid and longer than the longitudinal length of the positioning rib. This is achieved by the magnetic tape cassette storage case, wherein the fitting portion abuts on the first side wall portion when the lid portion is in a state of covering the storage portion.

According to the above configuration of the present invention, when the case is in a closed state, even if a force acts on the second flat plate portion to cause an elastic deformation, the positioning rib, As a result, since the fitting portion integrated with the second side wall portion is in contact with and fitted to the inner side surface of the first side wall portion, the positioning rib is biased to the outside of the first side wall portion. No transfer or deformation. Therefore, the second side wall does not shift or deform.
Further, the lid does not bite into the storage section.

In the storage case according to the first aspect, it is needless to say that various constructions of a lock mechanism for preventing an unexpected opening movement of the storage portion and the lid portion can be adopted, and the specific configuration thereof is such that the hinge portion at the time of closing the lid. And a configuration in which it is locked by a side wall portion of a portion opposed in parallel to the side wall.

Further, the above-mentioned object is to provide a storage case for a magnetic tape cassette according to claim 2 of the present invention, that is, a storage portion for storing the magnetic tape cassette, a lid portion covering the storage portion, the storage portion, A hinge portion that connects the lid portion so that the lid portion can be opened and closed, wherein the storage portion has a first flat plate portion and a first side wall portion provided on an outer peripheral portion of the first flat plate portion; It has a 2nd flat part and the 2nd side wall part provided in the outer peripheral part of the said 2nd flat part, The said 1st flat part has an overhang | projection formed outside the said 1st side wall. In the magnetic tape cassette storage case, a fitting groove into which the edge of the second side wall portion fits is formed in the overhanging portion, which is also achieved by the magnetic tape cassette storage case.

According to the second aspect of the present invention, when the case is in a closed state, even if a force is applied to the second flat plate portion to cause elastic deformation, the second flat plate portion is deformed.
Since the edge of the side wall portion and the fitting groove are fitted, the fitted portion serves as a preventive element against movement in the outward direction, and the second side wall portion is less likely to be deformed. The side wall does not shift outward with respect to the entire case. Therefore, the lid does not bite into the storage section. In addition, this feature provides the same effect even when a pressing force acts on the first flat plate portion.

In the storage case according to the second aspect, it is needless to say that various configurations of the lock mechanism can be adopted similarly to the first aspect. A configuration in which locking is performed at the side wall portion of the opposing portion is included.

By providing the lock mechanism on the side wall of the portion facing the hinge in parallel when the lid is closed, it is possible to prevent the storage case from being opened. By preventing this opening,
Inadvertent elastic deformation of the first side wall and the second side wall can be suppressed, and thus displacement and deformation of the side wall of the storage case due to the elastic deformation can be suppressed.

Further, according to the present invention, a storage case for a magnetic tape cassette having both the features of the first and second aspects is proposed. It goes without saying that the magnetic tape cassette storage case has both of the advantages described above.

[0023]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
An embodiment of the present invention will be described in detail. As the present embodiment, there is an improved type of the storage case for a magnetic tape cassette described in the section of the prior art. The configuration of the storage case of the present embodiment is the same as the storage case 150 of FIG. 13 except for the features according to the present invention. Therefore, the description other than the characteristic portions of the present invention will be omitted or simplified unless it is necessary to specifically explain.

FIG. 1 is a perspective view of a magnetic tape storage case 101 according to a first embodiment of the present invention. First
The embodiment corresponds to claim 1. The characteristic configuration of the present embodiment is the fitting portions 15a and 15b.

The fitting portions 15a and 15b will be described with reference to FIG. FIG. 2 is a cross-sectional view taken along line XX in FIG. 1, and the observation direction is from the direction of arrow D1. However, the storage case 101 is in a closed state, and the magnetic tape cassette is not stored. As is clear from FIG. 2, the positioning ribs 12a and 12b are
a and 11b, respectively, and further parallel to the positioning ribs 12a and 12b and the positioning ribs 12a and 12b.
b, the fitting portions 15a and 15b extending inward from the first
It is in contact with the inner surface of the side wall 5. As a result, the second side wall 9 and the fitting portions 15a, 15b sandwich the first side wall and the engaging recesses 11a, 11b. As a result, the second side wall 9 is shifted in the horizontal direction in FIG. And deformation. In addition, the fitting portions 15a, 15b also have a role as a member for preventing deformation and displacement of the positioning ribs 12a, 12b.

FIG. 3 shows a magnetic tape storage case 102 according to a second embodiment of the present invention. The second embodiment shows claim 1 and variations thereof. The characteristic configuration of this embodiment is that the fitting portions 15a, 15
b and the lock mechanisms 17a and 17b. The lock mechanism includes a convex portion 17a and a concave portion 17b.
It is provided at the longitudinal center of the side wall 9 and the first side wall 5. In this embodiment, the convex portion 17a is
A recess 17b is formed in the storage section 1;
A concave portion lock 17a and a convex portion in the storage portion 1 may be formed. By forming the lock mechanism, even if a vertical pressing force is applied to the flat plate portion of the storage case 102, it is possible to prevent the storage case from being opened. By preventing this opening, accidental elastic deformation of the side wall portions 5 and 9 can be suppressed, and therefore, displacement and deformation of the side wall portion of the storage case due to the elastic deformation can be suppressed. .

FIG. 4 shows a magnetic tape storage case 103 according to a third embodiment of the present invention. The third embodiment corresponds to claim 2. The characteristic configuration of this embodiment is as follows.
The fitting groove 16. An elongated portion of the second side wall portion 9 of the lid portion 2, which is a portion opposed in parallel to the hinge portion 3 when the case is closed, is formed so as to be able to fit into the fitting groove 16. ing. More specifically, the elongated portion is formed to have a relatively wide width up to the edge than other portions.

The fitting groove 16 will be described with reference to FIG.
FIG. 5 is a sectional view taken along line YY in FIG. 4, and the observation direction is from the direction of arrow D2. However, the storage case 30 is in a closed state, and the magnetic tape cassette is not stored. As is clear from FIG. 4, the second side wall 9
Are fitted with fitting grooves 16 extending to the overhang portion 4a. This fitting is loose fit in the present embodiment, but need not be loose fit. And
In this fitting, displacement and deformation in the horizontal direction in FIG. 4 are prevented. In addition, in the present embodiment, the fitting groove 16 that fits the long portion of the second side wall 9 is shown, but the fitting groove that the short portion of the second side wall 9 fits is not shown. It is also conceivable that it exists.

FIG. 6 shows a magnetic tape storage case 104 according to a fourth embodiment of the present invention. The fourth embodiment corresponds to claims 1 and 2. The characteristic configuration of the present embodiment is the fitting portions 15a and 15b and the fitting groove 16.

FIG. 7 shows a magnetic tape storage case 105 according to a fifth embodiment of the present invention. The fifth embodiment shows claim 2 and variations thereof. The characteristic configuration of this embodiment is the fitting groove 16 and the lock mechanisms 17a and 17b.

FIG. 8 shows a magnetic tape storage case 106 according to a sixth embodiment of the present invention. The sixth embodiment corresponds to claim 2. The characteristic configuration of this embodiment is as follows.
These are fitting grooves 16a and 16b. This embodiment corresponds to claim 2 similarly to the third embodiment, but has two fitting grooves 1.
6a and 16b and the fitting groove 16
The difference is that two portions of the second side wall portion 9 are relatively wide in order to fit into the a and 16b. In addition, in the present embodiment, the fitting grooves 16a and 16b to be fitted with the elongated portion of the second side wall 9 are shown.
It is also conceivable that there is further a fitting groove into which the shorter portion of the above fits.

FIG. 9 shows a magnetic tape storage case 107 according to a seventh embodiment of the present invention. The seventh embodiment corresponds to claims 1 and 2. The characteristic configuration of this embodiment is that the fitting portions 15a and 15b and the fitting groove 16
a and 16b.

FIG. 10 shows a magnetic tape storage case 108 according to an eighth embodiment of the present invention. The eighth embodiment shows claim 2 and variations thereof. The characteristic configuration of the present invention is the fitting grooves 16a and 16b and the lock mechanisms 17a and 17b.

FIG. 11 shows a magnetic tape storage case 109 according to a ninth embodiment of the present invention. The ninth embodiment corresponds to claims 1 and 2. The characteristic configuration of the present embodiment is the fitting portions 15a and 15b, the fitting groove 16, and the lock mechanisms 17a and 17b.

FIG. 12 shows a magnetic tape storage case 110 according to a tenth embodiment of the present invention. The tenth embodiment corresponds to claims 1 and 2. The characteristic configuration of this embodiment is that the fitting portions 15a and 15b, the fitting groove 1
6a and 16b and lock mechanisms 17a and 17b.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and can be appropriately modified. For example, the present invention is applicable to magnetic tape cassettes other than DVC.

[0037]

As described above, in the magnetic tape cassette storage case according to the present invention, the positioning rib has a fitting portion that is inward with respect to the lid and longer than the longitudinal length of the positioning rib. A fitting groove in which the second side wall portion fits when the lid portion covers the storage portion (the storage case is closed); In addition, since the fitting groove extends in parallel with the first side wall and the edge of the second side wall is formed so as to be fittable with the fitting groove, the member is stored as a result of elastic deformation. The displacement or deformation of the case side wall can be prevented. Preferably, when the lid is closed, the first
The storage case is provided with a lock mechanism for interlocking the side wall portion and the second side wall portion in a portion of the first side wall portion and the second side wall portion that faces in parallel with the hinge portion. Can prevent the opening phenomenon.

[Brief description of the drawings]

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

FIG. 2 is a sectional view taken along line XX in FIG.

FIG. 3 is a perspective view of a magnetic tape cassette storage case according to a second embodiment of the present invention.

FIG. 4 is a perspective view of a storage case for a magnetic tape cassette according to a third embodiment of the present invention.

FIG. 5 is a sectional view taken along line YY in FIG.

FIG. 6 is a perspective view of a magnetic tape cassette storage case according to a fourth embodiment of the present invention.

FIG. 7 is a perspective view of a magnetic tape cassette storage case according to a fifth embodiment of the present invention.

FIG. 8 is a perspective view of a storage case for a magnetic tape cassette according to a sixth embodiment of the present invention.

FIG. 9 is a perspective view of a storage case for a magnetic tape cassette according to a seventh embodiment of the present invention.

FIG. 10 is a perspective view of a storage case for a magnetic tape cassette according to an eighth embodiment of the present invention.

FIG. 11 is a perspective view of a magnetic tape cassette storage case according to a ninth embodiment of the present invention.

FIG. 12 is a perspective view of a magnetic tape cassette storage case according to a tenth embodiment of the present invention.

FIG. 13 is a perspective view of an example of a conventional magnetic tape cassette storage case.

FIG. 14 is a perspective view of a magnetic tape cassette stored in the magnetic tape cassette storage case according to the present invention.

FIG. 15 shows how the lid is deformed when a pressing force is applied to the lid.

FIG. 16 shows a state where the storage section and the lid section are not engaged.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Storage part 2 Lid part 3 Hinge part 4 1st flat part 4a Overhang part 5 1st side wall part 5a Lock part 6a, 6b Reel engaging rib 7 Rib 8 2nd flat part 9 2nd side wall part 9a Locking projection Reference Signs List 10 third flat plate portion 10a, 10b groove 11a, 11b engaging concave portion 12a, 12b positioning rib 13 storage portion side cassette holding portion 14 lid portion side cassette holding portion 15a, 15b fitting portion 16 fitting groove 16a, 16b fitting groove 17a, 17b Lock mechanism 101 Storage case for magnetic tape cassette 102 Storage case for magnetic tape cassette 103 Storage case for magnetic tape cassette 104 Storage case for magnetic tape cassette 105 Storage case for magnetic tape cassette 106 Storage case for magnetic tape cassette 107 Magnetic tape Storage case for cassette 108 Storage case for magnetic tape cassette 109 storage case for a magnetic tape cassette storage case 110 a magnetic tape cassette storage case 150 Magnetic tape cassette

Claims (2)

[Claims] 1. A storage unit for storing a magnetic tape cassette, a lid covering the storage unit, and a hinge unit for connecting the storage unit and the lid so that the lid can be opened and closed, wherein the storage unit is a first storage unit. A first side wall provided on an outer peripheral portion of the first flat plate portion, wherein the lid portion includes a second side wall provided on an outer peripheral portion of the second flat plate portion and the second flat plate portion; The second side wall portion has one or more positioning ribs on an inner surface thereof, and further, the second side wall portion engages with the positioning rib when the lid portion covers the storage portion. The joint recess is the second
In the magnetic tape cassette storage case provided on the side wall portion, the positioning rib has a fitting portion formed inward with respect to the lid and longer than the longitudinal length of the positioning rib. Wherein the fitting portion abuts on the first side wall portion when the lid portion is in a state of covering the storage portion. 2. A storage unit for storing a magnetic tape cassette, a lid covering the storage unit, and a hinge for connecting the storage unit and the lid so as to be openable and closable, wherein the storage unit is a first storage unit. A first side wall provided on an outer peripheral portion of the first flat plate portion, wherein the lid portion includes a second side wall provided on an outer peripheral portion of the second flat plate portion and the second flat plate portion; A fitting groove in which an edge of the second side wall is fitted, wherein the first flat plate has a projecting portion formed so as to protrude outside the first side wall. Is formed in the overhang portion, wherein the storage case for the magnetic tape cassette is provided.