JP3467647B2 - 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 storage case for storing paper sheets and the like.

[0002]

2. Description of the Related Art As a storage case, for example, there is one as shown in FIG.

This storage case is made of elastic synthetic resin, and as shown in FIG. 11, a case body 90 formed in a rectangular parallelepiped shape having a small gusset width and an open upper end, and the case body 90.
And a lid portion 91 integrated with the upper end of the rear plate.

As shown in FIG. 11, the lid portion 91 is composed of a ceiling portion 91a for closing the upper end open portion of the case body 90 and a front hanging portion 91b along the upper area of the front plate of the case body 90. Therefore, a groove is formed in a portion which becomes a bending curve so as not to give a large fatigue to the bent portion.

However, in the above-mentioned storage case, even if the lid 91 is rolled up as shown by the solid line in FIG. 12 to be in the open state, the lid 91 is shown by the two-dot chain line in FIG. 12 due to the elastic restoring force and its own weight after a while. Thus, it hangs down and covers the upper end opening of the case body 90. With this, it is not possible to smoothly take in and out the stored items.

[0006]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a storage case in which stored items can be smoothly taken in and out.

[0007]

In the storage case according to the present invention, the lid portion 2 is connected to the upper end of the rear plate 11 of the case body 1 through the linear hinge portion h1. In a storage case made of an elastic synthetic resin, a linear hinge part h1 formed by forming a groove on the case surface and its peripheral area are slightly projected to the outer surface side of the case to form a curved part 25, and a rear plate 11 and a lid part. Two
When the angle formed by is smaller than 180 °, the curved portion 25 projects toward the inner surface of the case and is maintained in that state, so that the lid portion 2 is prevented from moving in the lid closing direction. . (Invention of Claim 2) The storage case of the present invention relates to the invention of Claim 1, wherein the lid portion 2 has a linear hinge portion having a top portion 20 and a front hanging portion 21.
The straight hinge portion h2 formed by forming a groove on the outer surface side of the case and its peripheral area are slightly projected to the outer surface side of the case to form a curved portion 25, and the top portion 20 is formed. When the angle formed by the front hanging portion 21 and the front hanging portion 21 becomes smaller than 180 °, the curved portion 25 projects toward the inner surface of the case and is maintained in that state, so that the front hanging portion 21 is prevented from moving in the front direction of the case. It has become. (Invention of Claim 3) The storage case of the present invention relates to the invention of Claim 1 or 2, wherein the peripheral portion of the curved portion 25 or a portion of the peripheral portion excluding the linear hinge portion is a thin portion. Has been formed. (Invention of Claim 4) The storage case of this invention relates to the invention of claim 3, wherein the thin portion is formed by a groove formed on the outer surface side of the case. (Invention of Claim 5) The storage case of this invention relates to the invention of any one of Claims 1 to 4, wherein the curved portion 25 is formed in a circular shape in a front view. (Invention of Claim 6) The storage case of the present invention relates to the invention of any one of Claims 1 to 5, wherein a plurality of curved portions 25 are provided at intervals with respect to the linear hinge portion. .

The operation and effect of the storage case of these inventions will be described in the section of the following embodiments of the invention.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A storage case according to an embodiment of the present invention will be described with reference to the drawings. [First Embodiment] FIG. 1 is a perspective view showing a state in which a lid 2 is opened in a storage case S according to an embodiment of the present invention. FIG. 2 shows a state in which the lid 2 is closed in the storage case. It is the front view shown. (Regarding the Overall Structure of the Storage Case S) The storage case S is entirely made of an elastic synthetic resin plate such as polypropylene. As shown in FIG. 1, a lid portion is provided on the upper end of the rear plate 11 of the case body 1. 2 are connected via a linear hinge portion h1, and the lid portion 2 closes the upper end open portion K1 and the front upper area open portion K2 of the case body 1. (Regarding the configuration of the case body 1)
As shown in, the front plate 10, the rear plate 11, the gusset portions 12, 12,
It is composed of a bottom plate 13 and the upper end of the front plate 10 is a rear plate.
The front upper region open portion K2 is formed by setting the height lower than the upper ends of 11 and the gusset portions 12, 12.

As shown in FIG. 1, the gusset portion 12 has an outer plate 12a.
It has a double structure of an inner plate 12b and an inner plate 12b. A guide plate 15 is formed on the inner plate 12b in such a manner that a gap 14 is formed between the front plate 10 and the cover 2 in a thickness substantially equal to the plate thickness. is there. Also, this gusset part 12
As shown in FIGS. 1 and 2, the front plate corresponding to the gap 14
A hole 16 is formed in a portion adjacent to 10 (or / and in the vicinity thereof). The guide plate 15 is, as shown in FIG. 1 and FIG.
The upper end of the gusset portion 12 is aligned with the upper end of the gusset portion 12, and the lower end of the gusset portion 12 is formed in the shape of a vertically elongated strip so as to extend below the hole 16. (Regarding the structure of the lid portion 2) As shown in FIG. 1, the lid portion 2 is a top portion 20 for closing the upper end opening portion K1 of the case body 1.
And a front hanging portion 21 for closing the front upper area opening portion K2 of the case body 1, and the top portion 20 and the front hanging portion 21 are provided.
A linear hinge portion h2 is provided between and. In this embodiment, the front hanging portion 21 is composed of first and second front hanging portions 21a and 21b and a linear hinge portion h3 provided between them in order to facilitate insertion into the gap 14. I am doing it.

As shown in FIGS. 1 and 5, an arcuate projection 23 on the top plate 20 side is formed at the center of the linear hinge portion h2 on the line.
A notch 23 is formed so that a can be formed. By this notch 23, the front hanging part 21 can be pushed in with a comparatively small force, and fatigue of the linear hinge part h2 generated during the opening operation by pushing can be reduced. ing. Also, the protrusion
As shown in FIG. 5, 23a is in a state of slightly protruding from the surface of the first front hanging plate 21a in the closed state so that the fingertip can be hooked.

As shown in FIGS. 1 and 2, the second front hanging portion 21b is provided with small overhanging portions 22, 22 on both left and right sides near the tip, and the outer ends of these overhanging portions 22, 22 are mutually connected. The distance L is set to be larger than the distance D between the holes 16 formed in the gusset portion 12 and each other. Then, the second front hanging portion 21b is inserted into the gap 14, and the upper end opening portion K1 and the front upper area opening portion K2 of the case main body 1 are closed by the lid portion 2 and, at the same time, project as shown in FIG. The parts 22, 22 are adapted to be fitted in the holes 16, 16. (Regarding the configuration of the linear hinge portions h1, h2, h3 and the periphery thereof) The linear hinge portions h1, h2 are configured such that a groove is formed on the outer surface side of the case as shown in FIG. It is designed to bend in the direction in which spreads.

The linear hinge portion h3 is constructed so that a shallow groove is formed on the outer surface side of the case and can be slightly bent.

As shown in FIGS. 3 and 4, arcuate grooves 24a and 24b are formed above and below the linear hinge portions h1 and h2, respectively, and the portions surrounded by the arcuate grooves 24a and 24b are formed. The curved portion 25 projects outward. (Manufacture of this storage case S) FIG. 10 is a plan view of a plate material S'expanding this storage case S. In the figure, the one-dot chain line shows a folding curve formed by a Thomson blade or the like. Is.

In this plate material S ', when punching from a flat plate, the bending curve including the hole 16, the arcuate grooves 24a and 24b and the portion surrounded by these, and the linear hinge parts h1, h2 and h3 are simultaneously formed. To be done.

When this plate material S'is used, the outer plate
The storage case S is completed only by adhering or welding the inner surface of 12a and the outer surface of the inner plate 12b. (About opening and closing of the lid portion 2 in the storage case S). When the second front hanging portion 21b is inserted into the gap 14 along the guide plate 15, the upper end open portion K1 is gradually closed by the top portion 20, and the front upper area open portion K2 is gradually closed by the front hanging portion 21. And when it is almost completely closed, the overhangs 22, 22 have holes 16,
Fitted in 16. In this state, when the lid 2 is to be opened by a method other than the method described below, the wall forming the hole 16 and the overhanging portion 22 are locked, so that the lid 2 cannot be opened accidentally. Absent. ． When the portion near the triangular mark M of the storage case S is lightly picked with a finger, the front hanging portion 21 bends as shown in FIGS. 6 and 7 and the front view (distance D between the holes 17 and 17)> (overhang) When the overhanging portions 22 and 22 come out of the holes 16 and 16 and become more strongly pinched, as shown in FIG.
The front drop portion 21 is pulled out in the direction of the arrow shown in FIG.

If a large number of items are stored in the storage case S and the above-mentioned picking operation cannot be performed, the front end 21 can be forcibly pulled out from the gap 14 by hooking a fingertip on the protrusion 23a. Good.

That is, in this storage case S, the lid portion 2 can be opened relatively easily regardless of the amount of the stored items. (About the advantage of this storage case S). Since the storage case S does not have a notch or a severe bending operation that causes stress concentration in the opening / closing operation of the lid portion 2, it can be used for a long period of time. ． As shown in FIG. 5, since the second front hanging portion 21b is inserted into the gap 14 formed along the inner surface of the front plate 10 to close the lid portion 2, the contents stored in the case body 1 are not scratched. It is not attached, and the lid portion 2 can be easily closed even when a full-capacity storage item is put in the case body 1. ． When the lid 2 is in the state shown in FIG.
The curved portion 25 surrounded by a and 24b is curved in such a manner as to project to the outer surface side. However, when the lid portion 2 is grasped by hand and rocked rearward as shown by the solid line in FIG. Is beyond the point of consideration and protrudes inward in a V-shaped cross section. In this state, even if the lid 2 is released, the lid 2 does not return to the position shown in FIG. 3, but stops at the position indicated by the chain double-dashed line in FIG. Therefore, in the storage case S, when the above operation is performed, the lid 2 does not close the upper end open portion K1 while the stored items are being taken in and out, so that the stored items can be taken in and out very smoothly. . [Other Embodiments]. In the first embodiment, the peripheral portion of the curved portion 25 is formed as a thin portion by the arcuate groove, but the storage case of the present invention is not limited to this. That is, if the protruding direction of the curved portion 25 changes from the case outer surface to the case inner surface side when the angle formed between the case constituent plates adjacent to each other via the linear hinge portion becomes smaller than 180 °, Curved part
It is not necessary to make the peripheral portion of 25 thin with a groove or the like. ． In the first embodiment, only the portion of the peripheral portion of the curved portion 25 excluding the linear hinge portion is the thin portion, but the storage case of the present invention is not limited to this, and the entire peripheral edge of the curved portion 25 is not limited to this. The part may be a thin part. ． In the first embodiment, the thin portion formed on the peripheral portion of the curved portion 25 is configured by the groove on the outer surface side of the case, but the storage case of the present invention is not limited to this.
The groove may be formed on the inner surface side of the case, or may be formed on the both surface sides of the case. ． In the first embodiment, the curved portion 25 is formed in a circular shape when viewed from the front, but the present invention is not limited to this, and the angle formed between the adjacent case component plates via the linear hinge portion is 180 ° or less. If the protruding portion of the curved portion 25 changes from the outer surface of the case to the inner surface of the case when it becomes smaller, it may be polygonal or elliptical. ． In the first embodiment described above, two curved portions 25 are provided on the linear hinge portion with a space therebetween, but depending on the case, one curved portion or two or more curved portions may be provided. ． In the first embodiment, the linear hinge portion is configured by the groove formed on the outer surface side of the case, but the present invention is not limited to this, and the groove formed on the inner surface side of the case or the groove formed on both the inner and outer surface of the case is not limited thereto. It may be configured from.

[0019]

The present invention having the above-mentioned structure has the following effects.

As is clear from the contents described in the section of the embodiment of the invention, it is possible to provide a storage case in which stored items can be smoothly taken in and out.

[Brief description of drawings]

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

FIG. 2 is a front view of the storage case.

3 is a sectional view taken along line XX of FIG.

FIG. 4 is a perspective view of the back side of the storage case.

5 is a cross-sectional view taken along line YY of FIG.

FIG. 6 is a perspective view showing an operation when opening the lid of the storage case.

FIG. 7 is a front view for explaining an operation for opening the lid of the storage case.

FIG. 8 is a cross-sectional view for explaining an operation when opening the lid of the storage case.

FIG. 9 is a cross-sectional view for explaining an operation when opening the lid of the storage case.

FIG. 10 is a plan view of the plate material with the storage case unfolded.

FIG. 11 is a perspective view showing an operation when closing or opening the storage case of the prior art.

FIG. 12 is a cross-sectional view showing a state in which the storage case of the prior art changes from an open lid state to a closed lid state.

[Explanation of symbols]

S storage case K1 open upper end K2 front upper open area 1 case body 2 lid 10 front plate 11 Rear plate 12 gusset 13 Bottom plate 15 Information board 16 holes 20 Heaven 21 Front hanging part 22 Overhang 23 notches 23a protrusion 25 curved part h1 Linear hinge h2 Linear hinge h3 Linear hinge Distance between D holes L Distance between outer ends of overhang

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Patent Laid-Open No. 10-305832 (JP, A) Japanese Patent Laid-Open No. 11-130050 (JP, A) Actual Development Sho 62-130019 (JP, U) Japanese Patent Publication No. 4- 13217 (JP, B2) Jitsuko Sho 63-48510 (JP, Y1) Patent 3172892 (JP, B2) (58) Fields investigated (Int.Cl. ⁷ , DB name) B65D 5/42 B42F 7/14 B65D 5 / 66 321 B65D 85/00

Claims (6)

(57) [Claims] 1. A storage case made of an elastic synthetic resin in which a lid portion 2 is connected to an upper end of a rear plate 11 of the case body 1 via a linear hinge portion h1, and a groove is formed on the case surface. A curved portion 25 is formed by slightly projecting the linear hinge portion h1 and its peripheral region to the outer surface side of the case, and when the angle formed by the rear plate 11 and the lid portion 2 is smaller than 180 °, the curved portion 25 is the case. It protrudes to the inner surface side and its state is maintained,
A storage case characterized in that movement of the lid portion 2 in the lid closing direction is blocked. 2. The lid portion 2 comprises a top portion 20 and a front hanging portion 21 which are connected to each other via a linear hinge portion h2, and a linear hinge portion h2 formed by forming a groove on the outer surface side of the case. And its peripheral area are slightly projected to the outer surface side of the case to form the curved portion 25,
When the angle formed by the top portion 20 and the front sloping portion 21 becomes smaller than 180 °, the curved portion 25 projects toward the inner surface of the case and the state is maintained, preventing the front sloping portion 21 from moving in the front surface direction of the case. The storage case according to claim 1, wherein the storage case is configured as follows. 3. The storage case according to claim 1, wherein a thin wall portion is formed on a peripheral edge portion of the curved portion 25 or a portion of the peripheral edge portion excluding the linear hinge portion. 4. The storage case according to claim 3, wherein the thin portion is formed by a groove formed on the outer surface side of the case. 5. The storage case according to claim 1, wherein the thin portion 25 is formed in a circular shape when viewed from the front. 6. The storage case according to claim 1, wherein a plurality of curved portions 25 are provided for the linear hinge portion at intervals.