JP2009280240A - Paper container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper container designed so that the strength of side walls can be improved, a lid body can be locked on a container body, and high quality can be imparted to the container. <P>SOLUTION: The paper container accommodating an inner container for holding therein boiled rice, side dishes, and so on consists of the container body and the lid body. The container body is formed by folding a single sheet of paper as a base material. The container body is composed of: a bottom part; side walls formed by folding the base material upwards from the peripheral edge parts of the bottom part, folding it outward, and sticking it to the inside; leg parts extending downward from the side walls so as to project beyond the bottom part; and edge portions formed at the upper edge parts of the side walls. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention includes a lunch box, an insole container for a lunch box, a tray, a cosmetic box, an insole container for a cosmetic box, a candy box, an insole container for a candy box, a fruit box, and a fruit box. The present invention relates to a paper container suitably used as another container such as an insole container.

For example, when you bring a lunch box during seasonal seasons or when you go out for a vacation, or when you serve a catered lunch box at a slightly modified event, cover the outside of the plastic insole container with rice and side dishes. Paper containers are used to create a high-class feel, high quality, or luxury. As one of such paper containers, for example, the one disclosed in Patent Document 1 described below is known. In the paper container described in Patent Document 1, the four side wall forming parts of the base material are bent upward with respect to the bottom part, and the side wall forming parts thus erected are used with an adhesive tape and an adhesive. By fixing, a side wall is formed and a paper container is formed.
Japanese Utility Model Publication No. 7-21531

  The paper container described in Patent Document 1 is not limited in its material, but in recent years, it has been made of paper instead of plastic or metal so that disposal such as recycling and incineration can be easily performed. Things are becoming widely used. For this reason, when a sheet of paper is folded to form a paper container having a bottom and a side wall, there is a problem that the side wall is low in strength and gives a cheap impression.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a paper container that can increase the strength of the side wall and can provide a high-class feeling. . The case where the present invention is mainly used as a folded box container that accommodates an insole container such as a lunch box to give a high-class feeling is described below. It can also be used as a container for accommodating fruits, cosmetics, etc. in various forms.

  In order to achieve the above object, a paper container according to the present invention is a paper container that accommodates various items therein, and includes a container main body and a lid, and the container main body is a sheet of paper base material. A bottom part, a side wall formed by affixing the outer part of the bottom part by rising and folding outward, and a leg part formed by hanging from the side wall and projecting from the bottom part, and the side wall And an edge portion formed on the upper edge portion.

  According to this invention, the container main body is formed from the bottom portion, the side wall formed by rising from the peripheral edge portion of the bottom portion and folded back and pasted, and the leg portion formed by hanging from the side wall and projecting from the bottom portion. And the edge formed on the upper edge of the side wall, the side wall is formed by rising from the peripheral edge of the bottom part and then folding back and sticking to the outside, thereby increasing the strength of the side wall. A plurality of paper containers can be stacked. In addition, since the side wall is formed by rising from the peripheral edge of the bottom portion and then folding back and sticking to the outside, it can be given a high quality appearance. In addition, since the edge is formed on the upper edge of the side wall, the lid can be locked to the edge.

  In the paper container according to the present invention, the side wall is preferably formed to be slightly inclined outward. In the paper container according to the present invention, it is preferable that the edge portion is provided so as to protrude outward and has a substantially triangular cross section. Further, in the paper container according to the present invention, the edge portion is folded at a substantially right angle by bending the end portion of the side wall outward and then inclined downward, and then at an acute angle through the third bent portion in the reverse direction. It is preferably formed by bending, and a perforation is provided in the third bent portion. In the paper container according to the present invention, it is preferable that the lid body is provided with an engaging portion that engages with an edge portion of the container body and engages the lid body with the container body.

  Furthermore, the lid is formed by bending a paper base material, and an insertion piece to be inserted inside the edge of the container body is provided at the periphery of the paper base material so as to be foldable. Although the upper surface of the plug is flat, it may be provided with a raised portion that is inclined upward from a portion where the insertion piece is bent.

Further, the lid is formed by folding a paper base material, and four folding curves are provided on the paper base material according to the outer diameter of the container body, and the container is bent by these folding curves. The main body may be surrounded entirely.

  As described above, according to the paper container according to the present invention, the container body is formed by bending a sheet of paper base material, raised from the bottom and the peripheral edge of the bottom, folded outward, and pasted. The side wall formed by the above structure, the leg part formed by hanging from the side wall and projecting from the bottom part, and the edge part formed on the upper edge part of the side wall can be used to increase the strength of the side wall. In addition, the lid can be locked to the container body, and a high-class feeling can be obtained.

  Hereinafter, the paper container concerning this invention is explained in full detail based on an accompanying drawing.

  1 to 4 are views showing an example of a paper container according to the present invention. The paper container which concerns on this invention consists of the container main body 2, the insole container 3, and the cover body 4, as shown in FIGS. The insole container 3 is a container made of synthetic resin or the like that is accommodated in the container body 2 and separately lays food such as rice and side dishes, and has an arbitrary shape and size according to the shape of the container body 2 and the ingredients. Formed.

  The lid 4 closes the opening above the container body 2, and the shape thereof is not particularly limited. For example, the lid 4 is formed in a substantially rectangular flat plate shape with a transparent synthetic resin material or the like. The four peripheral portions of the lid 4 are each formed in two steps downward. This second stage portion is formed as a placement portion 41 that is placed on the edge portion 23 of the container body 2. The peripheral edge portion of the mounting portion 41 is bent downward at a substantially right angle to form a lower edge piece 42. Engaging portions 51 and 52 for engaging the edge portion 23 of the container body 2 and locking the lid body 4 to the container body 2 are provided on the peripheral edge of the lid body 4.

  The engaging portions 51 and 52 are, for example, first engaging portions 51 (see FIG. 3B) in which the inside of the placing portion 41 extends downward and engages with the inside of the upper edge portion of the container body 2. And the lower end part vicinity of the lower edge piece 42 protrudes inward, is formed in the substantially U shape by the mounting part 41, and it engages so that the edge part of the edge part 23 of the container main body 2 may be covered. It is comprised with the engaging part 52 (refer FIG.3 (c)). The installation position of the first engagement portion 51 is not particularly limited, and is provided, for example, at a substantially central portion in the width direction of the placement portion 41 (see FIG. 3A). Moreover, the installation position of the 2nd engaging part 52 is not specifically limited, For example, it is provided in a total of four places, two places near the center part of the width direction of the lower edge piece 42, and two places near both ends. (See FIG. 3 (a)). Thereby, the lid body 4 can be locked to the container body 2. At this time, if the lid body 4 is formed of a transparent material, the food material put in the insole container 3 of the container body 2 can be visually observed.

  The container body 2 is formed by bending a sheet of paper substrate 11, and includes a bottom portion 21, a side wall 22 erected on the peripheral edge of the bottom portion 21, and an edge portion 23 provided on the upper edge of the side wall 22. . Although the shape of the bottom part 21 is not specifically limited, For example, it is formed in the rectangular shape (square shape in the example of illustration). The side wall 22 is formed by bending the peripheral edge portions that are the four sides of the bottom portion 21 upward, and then folding the peripheral edge portion outward and sticking them together. The side wall 22 may be formed extending in a direction substantially orthogonal to the bottom portion 21, but may be formed slightly inclined outward. In this manner, a high-grade feeling can be obtained by forming the side wall 22 slightly inclined outward.

  An edge 23 is provided at the upper edge of the side wall 22. The edge portion 23 is provided so as to protrude outward and has a substantially triangular cross section. The edge 23 is formed, for example, by bending the end of the side wall 22 outward at a substantially right angle and then folding it back in a state of being inclined downward, and then bending it at an acute angle in the opposite direction. It is preferable that the end portion of the paper base 11 on which the edge portion 23 is formed extends downward from the bottom portion 21 and is formed as a leg portion 24.

  For example, the container body 2 is formed of a paper base material 11 as shown in FIGS. 5 and 6 that can form the container body 2 by cutting a sheet-like paper base material into a predetermined shape using a cutting machine. The paper base 11 is made by being bent and pasted at a predetermined location. The paper substrate 11 may be only paper such as cardboard, but is preferably one having a surface provided with a synthetic resin film excellent in water resistance, oil resistance, and abrasion resistance. The synthetic resin film is provided on the paper base 11 by printing or laminating, but is not limited to these methods and may be provided by other methods. In addition, the synthetic resin film includes a pattern, characters, designs, etc. according to a sense of luxury, seasonal age, excursions, events, etc. (see, for example, FIGS. 7A, 7B, and 7C). .) Is preferred.

  For example, as shown in FIGS. 5 and 6, the paper base 11 has four sides of a square-shaped bottom portion 21 formed as side wall bent portions 12, and an elongated rectangular shape is formed through the side wall bent portions 12. The side wall portions 22a are continuously provided. An edge upper side portion 23 a having a width wider than that of the side wall portion 22 a is connected to the end portion of each side wall portion 22 a via the first bent portion 13. The lower edge part 23b of the edge part is connected to the upper edge part 23a of the edge part via the second bent part 14. A side plate portion 25 is connected to the lower edge portion 23 b of the edge portion via the third bent portion 15. The third bent portion 15 is preferably provided with a perforation 16. The perforation 16 is not specifically limited, For example, you may form in the shape of a straight broken line. Further, as shown in FIG. 6, the third bent portion 17 may be provided with a U-shaped cutout portion 19 in addition to the perforation 18 (hereinafter, the third bent portion (15, 17)). Further, as shown in FIG. 3 in particular, the side plate portion 25 is formed in such a length that an end portion (tip portion) extends from the bottom portion 21 to become a leg portion 24. In addition, connecting portions 27 are connected to both side portions of two opposing side plate portions 25 among the four side plate portions 25 via connecting bent portions 28.

  In order to make the container body 2 using the paper base material 11, the four side wall portions 22 a are bent at the side wall bent portions 12 in the direction (upward) substantially orthogonal to the bottom portion 21. The edge upper side portion 23a is bent in the direction substantially orthogonal to the outside by the first bent portion 13 with respect to each side wall portion 22a, and then the edge lower side portion 23b is inclined downward at the second bent portion 14. Wrap it around. After the folding, each side plate portion 25 is bent at an acute angle in the opposite direction at the third bent portion (15, 17), and the side plate portion 25 is attached to the outer surface of the side wall portion 22a using an adhesive, thereby forming a side wall. 22 and edge 23 are formed. This affixing method is not particularly limited as long as the side plate part 25 (including the connecting part 27) can be affixed to the side wall 22, and may be performed using a double-sided adhesive tape or the like in addition to the adhesive.

  The bending of the upper edge portion 23a and the lower edge portion 23b of the edge portion with respect to the side wall portion 22a and the attachment to the side wall 22 of the side plate portion 25 are first performed by the two side plate portions 25 having the connecting portions 27, the upper edge portion 23a of the edge portion, and the edge. The lower side portion 23b is bent at the first to third bent portions 13, 14, (15, 17), and the two side plate portions 25 are attached to the opposite side wall portions 22a. The connecting portions 27 are attached to the adjacent side wall portions 22a. Next, the remaining upper edge portion 23a, lower edge portion 23b and side plate portion 25 are bent at the first to third bent portions 13, 14, (15, 17). The edge upper side 23a and the edge lower side 23b are bent so that both ends of the edge upper side 23a overlap with both ends of the edge upper side 23a bent first. After this bending, each side plate portion 25 is attached to the side wall portion 22a from above the connecting portion 27 is attached. Thereby, the container main body 2 which has the edge part 23 which protruded in the substantially triangular shape at the side wall 22 and the outer side is obtained. In addition, when forming the container main body 2 using a machine, after the paper base material 11 is punched out, an adhesive is applied to a necessary portion and is automatically attached when forming a side wall. is there.

  As described above, the paper container 1 according to the present invention is formed in a substantially triangular shape in which the side wall 22 is formed by pasting the paper base material and the edge 23 of the container body 2 protrudes outward. For this reason, since the side wall 22 is difficult to bend and the side wall 22 is not easily bent, the plurality of paper containers 1 can be stacked without being deformed in the vertical direction. This means that when the container body 2 is formed in an inverted trapezoidal shape, a plurality of paper containers 1 can be further stacked in a fitted state, and space is omitted during transport and storage of the finished product. be able to. In addition, since the first engaging portion 51 and the second engaging portion 52 of the lid body 4 are engaged with the edge portion 23 to lock the lid body 4, the lid body 4 is attached to the container body 2 (edge portion 23). It can be surely locked.

  Moreover, when the edge 23 of the container main body 2 of the paper container 1 is formed in a substantially triangular shape, the appearance of the container main body 2 is good and a high-class feeling can be given. In addition, the two side plate portions 25 having both end portions of the two opposite edge portions 23 overlapped on both end portions of the two opposite edge portions 23 that are bent first and having the connecting portions 27 are pasted and these side plates are attached. In order to attach the two connecting portions 27 of the portion 25 to the adjacent side walls 22 and attach the remaining two side plate portions 25 after the connecting portions 27 are attached, the back side of the paper base 11 is exposed to the outside. Because it doesn't do, it looks better.

  Further, since the leg portion 24 extending downward from the bottom portion 21 is provided, the bottom portion 21 of the paper container 1 (container body 2) is provided even when the place where the paper container 1 (container body 2) is placed is wet. Never get wet. Further, when the place where the paper container 1 (container body 2) is placed is wet with a liquid such as water, the bottom 21 does not come into surface contact with the place, so that the water does not spread. Moreover, even if the bottom part 21 of the paper container 1 (container body 2) is wet with water or the paper container 1 (container body 2) is placed, the water in the bottom part 21 adheres to the place where the lunch box is placed. There is no. Further, when a plurality of paper containers 1 are stacked, the bottom portion 21 comes into surface contact with the upper surface of the lid 4 of the lower paper container 1 and the leg portion 24 is placed on the placement portion 41. This makes it difficult for the paper container 1 to fall over, so that a plurality of paper containers 1 can be stably stacked.

  Moreover, the side plate part 25 can be favorably affixed to the side wall 22 by providing the perforation 16, the perforation 18, and the notch part 19 in the 3rd bending part (15,17). That is, when the container main body 2 is formed, the flat paper base 11 is bent. Therefore, if the perforation 16 or the like is not provided in the third bent portion (15, 17), the upper edge lower portion, the side plate portion, Try to be on the same plane. That is, it tries to return to the state before bending. For this reason, when the side plate portion 25 is attached to the outer surface of the side wall 22, the edge upper side portion 23 a of the side plate portion 25 tends to be separated from the side wall 22, so the side plate portion 25 cannot be attached to the side wall 22 satisfactorily. Sometimes. On the other hand, by providing the perforation 16, the perforation 18, and the notch 19 in the third bent portion (15, 17), the edge lower side portion 23b and the side plate portion 25 are easily bent from each other. Even if the side plate portion 25 is attached to the outer surface of the side wall 22, the edge portion 23 of the side plate portion 25 does not tend to be separated from the side wall 22, so that the side plate portion 25 is attached to the side wall 22 in a good and reliable manner. Can do.

  FIGS. 8 to 11 show another embodiment of the lid. In particular, as shown in FIG. 8, the lid 29 according to this embodiment uses cardboard having the same material and thickness as the paper container. In addition, a paper base 31 is formed by notching a square of a thick paper having a flat rectangular shape as a whole to provide a notch 30, and each notch 30 also has a first folding line 32 before the corner. The insertion piece 33 is formed on its four sides. Next, a raised portion 35 is formed by providing a second folding line 34 with a predetermined interval inside each first folding line 32. There are provided inclined portions 36 that form 45 ° with the respective cutout portions 30 except for the front where the respective cutout portions 30 intersect, and three shorter third folding curves 37, fourth folding curves 38 than the respective inclined portions 36, And the 5th folding line 39 is formed toward the position where each 2nd folding line 34 crosses reversely radially. Furthermore, a finger hook portion 45 is formed in one insertion piece 33 by cutting a part thereof with a cut line 40.

  Therefore, as shown in FIG. 8 and FIG. 9, when each first folding line 32 is first bent substantially at right angles in the same direction during use, each insertion piece 33 is formed, and the difference in which the cut line 40 is provided. From the insert piece 33, the finger hook portion 45 protrudes in a substantially right angle direction. Next, as shown in FIG. 10, when the short fourth fold curve 38 is folded inward, the portion bulges from the first fold curve 32 to the second fold curve 34 so that the portion inside the second fold curve 34 A flat raised portion 35 is formed.

  As shown in FIG. 11, the lid 29 formed in this way is printed on the outside thereof by inserting each insertion piece 33 into the inside of each edge 43 from the upper side of the container main body 46. (Not shown) and a portion of the raised portion 35 can constitute a paper container that can give a sense of quality.

  Next, FIGS. 12 to 14 show still another embodiment of the lid body. According to the drawings, the lid body 55 according to this embodiment also uses cardboard having the same material and thickness as the paper container. In addition, an engagement piece 58 protrudes from one end of a paper base material 56 having a flat rectangular shape as a whole so as to be foldable by a first folding curve 57, and has four pieces according to the outer diameter of the container body. By providing the second fold curve 59, the third fold curve 60, the fourth fold curve 61, and the fifth fold curve 62 in parallel, the surface portion 63, the side surface portions 64 and 65, the bottom surface portion 66, and the overlapping portion 67 are formed. The engagement groove 58 of the engagement piece 58 is formed in the 5th folding line 62 which is formed and forms the superposition | polymerization part 67. FIG.

  Therefore, at the time of use, as shown in FIG. 13, by folding the second fold curve 59 to the fifth fold curve 62, the container main body 69 is wrapped as a whole, and finally the first fold curve 57 is folded and engaged. Paper that can bring out a high-class feeling as shown in FIG. 14 due to the politeness of wrapping the entire container body 69 by the pattern printed on the outside by inserting the piece 58 into the locking groove 68 by rising. A container can be constructed.

  As described above, the paper container according to the present invention is composed of a container body and a lid, and the container body is formed by bending a sheet of paper substrate, and stands from the bottom and the peripheral edge of the bottom. Because it is composed of a side wall formed by lifting and folding outward and sticking, a leg part formed by hanging from this side wall and projecting from the bottom part, and an edge part formed on the upper edge part of the side wall In addition to being able to increase the strength of the side wall and covering the container body with various types of lids, the paper container can be suitably used as a paper container that can be produced at a low cost and can give rise to a high-class feeling according to the application. It is.

It is a perspective view which shows an example of the paper container concerning this invention. It is an exploded perspective view showing an example of the paper container concerning the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows an example of the paper container concerning this invention, (a) is a front view, (b) is AA sectional view taken on the line in (a) figure, (c) is in (a) figure. It is a BB arrow directional cross-sectional view. It is a perspective view which shows an example of the container main body and insole container which concern on this invention. It is an expanded view which shows an example of the container main body which concerns on this invention. It is an expanded view which shows the other example of the container main body which concerns on this invention. It is a front view which shows the other example of the paper containers based on this invention. It is an expanded view which shows the other example of the cover body of the paper container which concerns on this invention. It is a perspective view of the state which assembled the cover body shown in FIG. FIG. 10 is a sectional view taken along line AA in FIG. 9. It is a perspective view in the case of covering the cover body shown in FIG. 8 on a container main body. FIG. 6 is a development view showing still another example of the lid of the paper container according to the present invention. It is explanatory drawing at the time of assembling the cover body shown in FIG. FIG. 13 is a perspective view of a state in which the container body is surrounded by the lid shown in FIG. 12.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Paper container 2,46,69 Container main body 4,29,55 Cover body 11,31,56 Paper base material 15,17 3rd bending part 16,18 Perforation 21 Bottom part 22 Side wall 23 Edge part 24 Leg part 25 Side plate part 33 Insertion piece 35 Raised part 51 First engagement part 52 Second engagement part 58 Engagement piece 59 First folding line 60 Second folding line 61 Third folding line 62 Fourth folding line

Claims (7)

A paper container that houses various things inside,
A container body and a lid, wherein the container body is formed by bending a sheet of paper base; a bottom part; a side wall formed by rising from the peripheral part of the bottom part and folding back to the outside; A paper container comprising: a leg portion formed by dropping from the side wall and projecting from the bottom portion; and an edge portion formed on the upper edge portion of the side wall.   The paper container according to claim 1, wherein the side wall is formed to be slightly inclined outward.   The paper container according to claim 1, wherein the edge portion is provided so as to protrude outward and has a substantially triangular cross section.   The edge portion is formed by bending the end portion of the side wall outward at a substantially right angle and then folding it back in a state of being inclined downward, and then bending it at an acute angle in the reverse direction via a third bending portion. The paper container according to any one of claims 1 to 3, wherein the curved portion is provided with a perforation.   The said cover body is provided with the engaging part which engages with the edge part of the said container main body, and latches the said cover body to the said container main body, The any one of Claims 1-4 characterized by the above-mentioned. The paper container according to item 1.   The lid body is formed by bending a paper base material, and an insertion piece inserted into the inner edge of the edge of the container main body is provided at the periphery of the paper base material so that it can be bent, and The upper surface of the lid body is flat, but includes a raised portion that is inclined upward and lifted from a portion where the insertion piece is bent. Paper container.   The lid body is formed by bending a paper base material, and has four folding lines according to the outer diameter of the container body on the paper base material, and the folding is performed at these folding curves. The paper container according to any one of claims 1 to 4, characterized in that the container body is surrounded by the whole.

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