JP4571085B2 - Portable folding container - Google Patents

Description

  The present invention relates to a portable folding container that can be folded and folded easily when not in use, and that is self-supporting without injecting contents when in use.

  As a portable folding container, one formed by bonding an outer sheet and a flexible inner sheet and cutting out a part thereof is known.

  12, 13, and 14 are a development view of the conventional portable folding container shown in Patent Document 1, a perspective view during assembly, and a cross-sectional view of the sheet S when the inner and outer sheets are bonded together. The outer sheet O is provided with folds Ba, Bc to Bf, and a cut Bb, and each region is partitioned by these. That is, the sticking part B2 is partitioned on both edges in the horizontal direction, the sticking part B1 is partitioned on both edges in the vertical direction, and the wall surface part B3 is partitioned on the laterally outer side of the region sandwiched between the sticking parts B1, A bottom surface B20 is defined at the center. Further, the bottom surface portion B20 is provided with reinforcing portions B10 at the four corners thereof, and a main bottom surface portion B4 and a standing wall portion B5 adjacent thereto are partitioned at the center in the vertical direction, and the outer periphery Bg of the standing wall portion B5 and the reinforcing portion In the notch B7 sandwiched between B10, the outer sheet O is notched and the inner sheet I is exposed.

Both wall surfaces B3 of the sheet thus formed face each other between a pair of bottom folds Bc provided in parallel in the vertical direction and a bottom fold Bd provided in the center between the bottom folds Bc. In this way, the bottom part B20 is folded between the wall surface parts B3 when not in use, and the cut Bb is used at the time of use. There is disclosed a folding container in which the sticking part B2 is cut off and the bottom part B20 is developed to have self-supporting properties.
No. 7-12244

  As shown in FIG. 13, the conventional portable container as described above is a substantially rectangular parallelepiped container in which the standing wall portion B5 rises upward during assembly and only the rectangular main bottom surface portion B4 serves as the bottom surface of the container. Therefore, when a round food is used, the container becomes excessively large with respect to the food, which is inconvenient to carry.For example, when a round instant noodle is inserted into the container and cooked with hot water, it is excessive. Hot water was required and was inefficient. In addition, there is a problem that it is difficult to eat and drink, and there has been a need for a bowl-shaped portable container that is self-supporting and has a circular bottom surface.

  This invention is made | formed in view of said point, and it aims at providing the portable folding container with the self-supporting property which becomes a substantially circular shape by planar view at the time of use.

  In order to solve the above problems, the present invention comprises a base sheet formed by a substantially rectangular outer sheet and a flexible inner sheet bonded to the outer sheet, and the outer sheet extends along both longitudinal edges. From a sticking part partitioned outside by a pair of extending sticking folds, a bottom part at the center in the horizontal direction and a pair of outer wall parts partitioned by a pair of bottom folds extending parallel to each other in the vertical direction And the bottom surface portion and the adhering portion adjacent to the bottom surface portion are formed with one or more bottom surface folds extending in the vertical direction, and the bottom surface portion has a main bottom surface portion at the center in the vertical direction and the main surface portion. A pair of standing wall portions that are respectively provided on the outside in the vertical direction across the bottom portion and surrounded by the vertical wall inner fold fold and the outer vertical wall fold fold, and the vertical length of the pair of standing wall portions A pair of sub-bottom surface portions connected to each outside in the direction, and the outer peripheral line of the sub-bottom surface portion A pair of cutout portions formed by cutting out the outer portions in the vertical direction, and bending the bottom fold and the bottom fold so that the wall surface faces each other, and the sticking portion When not in use, the bottom surface part is folded between the wall surface parts on both sides to maintain a flat shape, and in use, the bottom surface part is unfolded and the wall surface parts on both sides are Provided is a portable folding container which is bent or bent and is assembled so as to be substantially circular in a plan view.

  According to such a configuration, the container can be made substantially circular in a plan view by bending or bending the wall surface portion during use, and the standing wall mountain fold is folded into a mountain fold with the bottom surface portion down. By raising the vertical wall with respect to the main bottom surface by making the vertical wall valley fold into a valley fold, a downward convex portion can be formed between the wall surfaces. This convex portion can prevent both wall surface portions from approaching again and returning to a flat shape due to the restoring force when the both wall surface portions are separated from each other and the bottom surface portion is developed in use. In addition, by providing the sub-bottom surface portion on the outside of the standing wall portion, the bottom surface outside the standing wall portion is protected, and the portion of the wall surface portion surrounding the bottom surface outside the standing wall portion is flattened by its restoring force. You can deter trying to return. That is, it is possible to provide a bowl-shaped portable container in which self-supporting property that is substantially circular in a plan view is ensured by the above configuration.

  In the present invention, the shape of the sub-bottom surface portion is substantially semicircular or substantially circular, and when used, the wall surface portion is assembled so as to be curved or bent substantially along the outer peripheral portion of the sub-bottom surface portion. preferable.

  According to such a configuration, a substantially circular bottom surface can be formed by the main bottom surface portion and the sub-bottom surface portion. Therefore, the container can be reliably assembled into a substantially circular shape by the wall surface portion being curved or bent along these bottom surface portions.

  In the present invention, the bottom crease is a first bottom crease provided at the center in the lateral direction of the bottom part, and a pair of second creases provided at positions equidistant from the first bottom crease. A bottom fold, the first bottom fold is folded into a valley fold, and the second bottom fold is folded into a mountain fold so that the bottom portion is folded between the wall surfaces on both sides. It is preferable.

  According to such a structure, while the maximum height of the bottom face part at the time of an assembly can be restrained low, while being able to keep a bottom face more circular shape, the bonding force in a sticking part can be ensured.

  In the present invention, the outer sheet may include a plurality of side folds extending in a direction perpendicular to the bottom fold in each of the wall surfaces.

  According to such a configuration, the wall surface portion is bent by the folds of the side folds, so that assembly is facilitated and shape retention is improved.

  Further, in the present invention, the side fold is a first side fold passing through the intersection of the standing wall fold fold and the bottom fold in each of the wall surfaces, and a vertical direction from the first side fold. Each of the first side folds and the second side folds is provided on the outer side, and each of the first side folds and the second side folds is adjacent to each other, and the bottom surface portion is the first side fold and the second side folds of the bottom fold The support portion may be provided with a support portion connected to the standing wall portion via a crease, and the support portion may be left without being cut out.

  According to such a configuration, the wall surface portion is folded at the first side fold and the second side fold at the time of assembly, and is folded between the first bottom fold and the second bottom fold. Therefore, it becomes easy to assemble the container into a predetermined shape. Moreover, since the bottom fold portion is protected by the support portion, the durability of the container is improved.

  In the present invention, it is preferable that the length of a portion surrounding the outer periphery of the sub-bottom surface portion during assembly of the bottom fold is substantially equal to the outer peripheral length of the sub-bottom surface portion surrounded by the bottom fold.

  According to such a configuration, the wall surface portion abuts over the entire outer periphery of the sub-bottom surface portion during assembly, and the shape retention of the container is improved.

  As described above, according to the present invention, it is possible to provide a portable folding container having a self-supporting property that is substantially circular in a plan view.

  A first embodiment of the portable folding container according to the present invention will be described.

  1, FIG. 2, FIG. 3 and FIG. 4 are a developed view, an exploded perspective view, a perspective view from the top surface during assembly, and a perspective view from the bottom surface during assembly.

  As shown in FIG. 1, this container is formed from the base material sheet S which bonded the comparatively highly rigid substantially rectangular outer sheet | seat O and the relatively flexible inner sheet | seat I. As shown in FIG. For example, the outer sheet O may be made of relatively rigid paper, plastic, or the like, and the inner sheet I may be a single plastic film or a plastic film made of polyester, polypropylene, polyamide, or the like deposited with an aluminum foil. Good.

  The outer sheet O is provided with adhesive folds a and a extending along both edges in the vertical direction and cuts b and b extending along both edges in the horizontal direction, and is attached to the outside of the adhesive folds a and a. The attaching parts 1 and 1 are partitioned, and the attaching parts 2 and 2 are partitioned outside the cut lines b and b.

  Here, the crease in the present invention indicates that the sheet is subjected to some processing so that it can be easily folded along the line (for example, a crease or a perforation is provided) and that the sheet is folded along the line. Including any of the drawn lines.

  A pair of bottom folds c, c extending in the vertical direction are provided near the center in the lateral direction of the sheet S. The bottom folds c, c provide a central bottom surface portion 20 and a pair of outer wall surfaces 3, 3. And is partitioned.

  The bottom surface portion 20 and the adhering portion adjacent thereto are provided with a first bottom surface fold d1 at the center in the lateral direction and a first center fold d1 and a substantially center between the bottom folds c and c. A bottom surface fold line d composed of two bottom surface fold lines d2 and d2 is provided.

  Further, the bottom surface portion 20 has a main bottom surface portion 4 defined by standing wall trough folds e and e at the center in the vertical direction, and the standing wall trough folds e and e are respectively outside the main bottom surface portion 4. And a standing wall portion 5 divided by standing wall folds f and f are continuously provided, and sub-bottom surface portions 6 and 6 having a substantially semicircular shape or a substantially noncircular shape are continuously provided on the outside thereof. Here, in the embodiment shown in FIG. 1, the standing wall valley folds e and e are straight lines parallel to each other and the standing wall mountain folds f and f are circular so that the standing wall 5 has a substantially circular shape. In addition to this shape, the vertical wall valley folds e, e are curved or bent into a shape that protrudes inward in the vertical direction, or the vertical wall mountain folds f, f become convex outward in the vertical direction. It may be bent into a shape.

  In addition, the outside of the sub-bottom surface portions 6 and 6, that is, the notches 7 and 7 surrounded by the outer periphery g of the sub-bottom surface portions 6 and 6, the bottom fold c and c, and the sticking folds a and a, The outer sheet O does not exist, and the notches 7 and 7 are formed only by the inner sheet I.

  In addition, the length X of the portion of the bottom fold c that surrounds the outer peripheries of the sub-bottom portions 6 and 6 is set to be substantially equal to the outer perimeter Y of the sub-bottom portion surrounded by the bottom fold. ing.

  Next, as shown in FIG. 2, the base sheet S formed as described above has the inner side sheet I as the inner side and the bottom creases c and c and the first bottom fold line d <b> 1 are valley-folded. The bottom fold line d2 is folded into a mountain fold, and the bottom surface portion 20 is folded between the wall surface portions 3 and 3 so that the wall surface portions 3 and 3 face each other. Then, the container of this invention is formed by sticking the part which each opposes the sticking parts 1 and 1 and the sticking parts 2 and 2 by heat seal etc. As shown in FIG.

  When the container is not in use, it is preferable that the bottom surface portion 20 be folded between the wall surface portions 3 and 3 to have a flat shape as described above so that the container can be easily carried without being bulky.

  Next, the assembly method at the time of use is demonstrated. First, the sticking portions 2 and 2 are cut or opened along the cut lines b and b to provide openings. Next, the wall surface portions 3 and 3 facing each other are pulled apart, and the bottom surface portion 20 is developed. At this time, since the inner sheet I of the notch 7 is bent and the wall surfaces 3 and 3 are curved substantially along the outer periphery g of the sub-bottom surfaces 6 and 6, the bottom surface of the container can be formed in a substantially circular shape. Further, the standing wall valley folds e and e and the standing wall mountain folds f and f provided on the main bottom surface portion 4 are folded into a valley fold and a mountain fold, respectively, with the bottom surface as a lower side. 2, the standing wall portions 5 and 5 rise upward with respect to the main bottom surface portion 4, and the sub-bottom surface portions 6 and 6 are lifted upward with respect to the main bottom surface portion 4. As a result, portions that are convex downward with respect to the sub-bottom surface portions 6 and 6 are formed.

  This convex portion is formed over both wall surface portions 3 and 3 to prevent the wall surface portions 3 and 3 from returning to the original flat state, and the bottom surface portion 20 is restored to its original shape by folding of the bottom surface folds d. It is trying to return to the folded state. As a result, the self-supporting property of the container is ensured, and a container having a circular shape or a shape approximate to the circular shape is formed in a plan view. In particular, by making the outer peripheral length Y of the sub-bottom surface portions 6 and 6 and the length X of the bottom fold c surrounding the sub-bottom surface portions 6 and 6 substantially equal, the wall surface portions 3 and 3 come into contact with the outer periphery of the sub-bottom surface portions 6 and 6. The shape of the housing portion in plan view is a substantially circular shape formed by the main bottom surface portion 4 and the sub bottom surface portions 6 and 6, and the wall surface portions 3 and 3 surrounding the sub bottom surface portions 6 and 6 are flat. Return can be suppressed.

  Thus, a bowl-shaped container suitable for circular instant noodles or the like is formed.

  Here, in the above embodiment, the case where three bottom folds d (d1, d2, d2) are provided has been described, but one or more bottom folds d may be provided as appropriate. FIGS. 5, 6, and 7 show the case where the bottom crease d is one. If the bottom surface crease d is reduced, the thickness of the sticking portions 1 and 1 folded between the wall surface portions 3 and 3 is reduced, so that the required sticking force can be reduced. On the contrary, when a large number of bottom surface folds d are provided, the maximum height of the bottom surface can be lowered during assembly, so that the container can be assembled in a more circular shape. Therefore, the bottom crease can be set as appropriate according to the material of the sheet and the like, but it is preferable to make the bottom crease d three as in the above-described embodiment in order to achieve both.

  Next, a second embodiment of the portable folding container according to the present invention will be described.

  FIG. 8 shows a development view of this embodiment. In the outer sheet O of the present embodiment, as in the first embodiment, the sticking portions 1 and 2, the bottom surface portion 20, and the wall surface portion 3 are partitioned by the respective folds and cuts. Are provided with a main bottom surface portion 4, a standing wall portion 5, a sub-bottom surface portion 6, and a notch portion 7, respectively. Here, as shown in FIG. 8, the standing wall valley folds e and e may be convex inward in the vertical direction. Further, as shown in FIG. 8, the sub-bottom surface portion 6 and the bottom fold c are separated from each other, and the outer peripheral length Y of the sub-bottom surface portions 6 and 6 is made smaller than the length X of the bottom fold c surrounding the sub-bottom fold c. In this case, since there is a space between the wall surface portions 3 and 3 and the sub-bottom surface portions 6 and 6, assembly becomes easy. Whether X≈Y as in the first embodiment or X> Y as in this embodiment may be appropriately changed according to the material of the base sheet.

  Further, in the present embodiment, on the wall surface portions 3 and 3, the first side fold h1 based on the intersection of the standing wall folds f and f and the bottom folds c and c, and the first side folds are provided. A second side fold h2 provided so as to be adjacent to the first side fold h1 on the outer side in the longitudinal direction of the eye h1, and a side fold h3 provided on the outer side in the vertical direction than the second side fold h2. There are four each.

  At the four corners of the cutout portion 7, symmetrically, support portions having a substantially triangular shape having a base line segment sandwiched between the first base fold h1 and the second base fold h2 among the base folds c and c. 8 is formed by the outer sheet O. That is, the outer sheet O of the support portion 8 is left without being cut out.

  Further, the notch 7 has a substantially triangular shape with the bottom of the line segment sandwiched between the second side fold h2 and the side fold h3 among the bottom folds c and c outside the support 8 in the longitudinal direction. Are formed symmetrically by the outer sheet O, respectively.

  Further, in the cutout portion 7, the reinforcing portions 10 having two sides of the sticking fold a and the bottom fold c at the four corners of the bottom surface portion 20 outside the push-up portion 9 are symmetrical by the outer sheet O, respectively. Is formed.

  Then, in the cutout portion 7, portions other than the support portion 8, the push-up portion 9 and the reinforcement portion 10, that is, the oblique side i of the support portion 8, the side j of the push-up portion 9, and the oblique side k of the reinforcement portion 10 are pasted. A portion surrounded by the folding line a and the outer periphery g of the sub-bottom surface portion 6 is formed only by the inner sheet I. That is, the outer sheet O of the above part is cut out.

  The base sheet S thus formed is formed as a folded container by being folded and stuck in the same manner as in the first embodiment.

  Next, the shape at the time of use of a present Example is demonstrated using FIG. 9 and FIG. FIG. 9 and FIG. 10 are a perspective view from the upper surface and a perspective view from the lower surface, respectively, when the present embodiment is assembled.

  As shown in this figure, in the present embodiment, the wall surface portions 3 and 3 are bent at the respective side folds h1, h2 and h3, so that a polygonal container approximating a circle in plan view is formed. Here, if the support portion 8, the push-up portion 9, and the reinforcing portion 10 are provided so as to be connected to the wall surface portion 3 sandwiched between the side folds h1, h2, and h3 as in the present embodiment, the wall surface portion 3 is provided. Are prevented from being bent in these regions, and can be easily assembled into a predetermined polygonal shape.

  Further, since the inner sheet I is pushed up from the lower surface by the support portion 8, the push-up portion 9, and the reinforcing portion 10, the wrinkles of the inner sheet I are reduced and the appearance of the bottom surface is relatively improved.

  Further, since the bottom fold c is protected by the support portion 8, the push-up portion 9, and the reinforcing portion 10, the durability of the container is improved.

  Here, in the said Example, although the case where the support part 8, the raising part 9, and the reinforcement part 10 were each connected was shown, you may isolate | separate. A plurality of side folds h corresponding to the tops 9 and the tops of the tops 9 may be provided.

  Further, the sub-bottom surface portion 6 may have a polygonal shape approximated to the subcircular shape or the semicircular shape in the first and second embodiments.

  Further, the sub-bottom surface portion 6 does not need to be connected to the bottom folds c and c and the support portion 8 and may be provided near the center in the lateral direction of the standing wall fold folds f and f.

  Further, in order to facilitate the assembly of the standing wall portion 5 and the support portion 8 and the like, as shown in FIG. 11, a portion of the standing wall portion 5 that is connected to the support portion 8 and the vicinity thereof may be cut out.

  Of course, the container according to the application may be formed by appropriately combining the first embodiment and the second embodiment.

It is an expanded view of the 1st Example of the portable folding container which concerns on this invention. It is a disassembled perspective view of said 1st Example. It is an assembly perspective view of said 1st Example. It is a perspective view from the bottom at the time of said 1st Example assembly. It is an expanded view of the example of a folding method change of said 1st Example. It is a disassembled perspective view of the example of a change of said 1st Example. It is an assembly perspective view of the example of a change of said 1st Example. It is an expanded view of the 2nd Example of the portable folding container which concerns on this invention. It is an assembly perspective view of said 2nd Example. It is a perspective view from the bottom at the time of said 2nd Example assembly. It is an expanded view of the modification of the said 2nd Example. It is an expanded view of the conventional portable folding container. It is a perspective view from the bottom at the time of the conventional portable folding container assembly. It is sectional drawing of the sheet | seat of the portable folding container which concerns on the past and this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Adhesion part 3 Wall part 4 Main bottom part 5 Standing wall part 6 Sub-bottom part 7 Notch part 8 Notch part 8 Support part a Adhesion fold c Bottom fold d Bottom crease e Standing wall valley fold f Standing wall mountain fold h Side fold h1 First side fold h2 Second side fold

Claims (6)

It consists of a base sheet formed by a substantially rectangular outer sheet and a flexible inner sheet bonded to this,
The outer sheet is
A sticking part partitioned outside by a pair of sticking folds extending along both longitudinal edges;
It consists of a bottom portion at the center in the lateral direction and a pair of outer wall surfaces defined by a pair of bottom folds extending in parallel to each other in the vertical direction,
One or more bottom folds extending in the vertical direction are formed in the bottom surface portion and the sticking portion adjacent to the bottom surface portion,
The bottom part is
A main bottom surface at the center in the vertical direction;
A pair of standing wall portions that are continuously provided on the outside in the vertical direction across the main bottom surface portion and surrounded by the vertical wall inner fold fold and the outer vertical wall mountain fold,
A pair of sub-bottom surface portions respectively provided on the outside in the longitudinal direction of the pair of standing wall portions;
A pair of cutout portions formed by cutting out the outer portion in the vertical direction from the outer peripheral line of the sub-bottom portion,
By bending the base fold and the bottom fold so that the wall surface faces each other, the base sheet is bonded to the sticking part,
While not in use, the bottom part is folded between the wall parts on both sides to maintain a flat shape,
In use, the portable folding container is assembled so that the bottom surface portion is expanded and the wall surface portions on both sides are curved or bent so as to be substantially circular in a plan view. The shape of the sub-bottom portion is a substantially semicircular or a substantially circular shape,
2. The portable folding container according to claim 1, wherein the wall surface portion is assembled so as to be bent or bent substantially along the outer peripheral portion of the sub-bottom surface portion.   The bottom crease includes a first bottom crease provided at the center in the lateral direction of the bottom part and a pair of second bottom creases provided at equal distances from the first bottom crease. The first bottom surface fold is folded into a valley fold, and the second bottom surface fold is folded into a mountain fold so that the bottom surface portion is folded between the wall surface portions on both sides. The portable folding container according to claim 1 or 2.   The portable folding container according to any one of claims 1 to 3, wherein the outer sheet includes a plurality of side folds extending in a direction perpendicular to the bottom fold in each of the wall surface portions. . In each of the wall surfaces, the side folds are
A first side fold passing through the intersection of the Tatebeyama fold and the bottom fold,
Provided on the outside in the longitudinal direction from the first side fold, each having a first side fold and a second side fold adjacent thereto;
The bottom surface portion has a substantially triangular shape with a bottom portion of the bottom fold sandwiched between the first side fold and the second side fold, and the fold is interposed in the standing wall portion. Each has a series of support parts,
The portable folding container according to claim 4, wherein the support portion is left without being cut out.   The length of the portion surrounding the outer periphery of the sub-bottom surface portion during assembly of the bottom fold is substantially equal to the outer peripheral length of the sub-bottom surface portion surrounded by the bottom fold. 5. The portable folding container according to any one of 5 above.

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