JPH04112012U - packaging box - Google Patents

Abstract

(57) [Summary] [Purpose] To improve a retort food packaging box that can be easily opened and closed by simply bending and raising a lid piece so that it can be erected. [Structure] A pair of side plates 10a and 10b, each having an arcuate upper edge curved downward and a flat lower edge, are arranged in a row with both side edges folded in half. The upper end of each side wall 10a, 10b is connected to a lid wall 11 connected via fold lines 53a, 53b.
a, 11b are folded and closed, and the lower end portions are formed by diagonal fold lines 54a, 54b.
b is pushed inward and the portion surrounded by the diagonal fold lines 54a, 54b and the fold lines 55a, 55b protrudes outward to form a rectangular bottom opening, and this bottom opening is used as the folding piece and bottom wall 30. occlusion.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea was developed for the exterior packaging of retort food, which is made by wrapping cooked food in synthetic resin film. This invention relates to a packaging box, particularly a packaging box that is convenient to open and close and can stand up.

0002

[Conventional technology]

As a packaging box for retort food, there is a packaging box as shown in FIG. This packaging box is divided by the fold line 62 of the cylinder which is folded in half along the fold line 62. A lid piece is attached to the upper and lower ends of the two side walls 61 through curved fold lines 63 that curve inward, respectively. 64 in series. This lid piece 64 has a shape corresponding to the curved fold line 63. The tip edge of the is curved outward, and when the bottom lid pieces 64 are folded over each other, the bottom becomes shaped. At the same time, each side plate 61 is curved in an arc shape to form a storage space for the product. It will be done. Therefore, put the retort food into this contraction space, fold the top lid piece 64 over, and Packaging is completed when the pieces 64 are fixed with adhesive tape B or the like. In addition, for packaged products, simply cut the adhesive tape B and raise the lid piece 64. It can be taken out and is very easy to use.

0003

[Problem that the idea aims to solve]

By the way, it is best to soak retort food in boiling water and heat it before opening it. This is a common cooking method, but it can also be heated in a microwave oven in a short time. Ru. In that case, there is a risk of it exploding if you put it in the microwave while it is still sealed. Therefore, it is necessary to open the package. However, regular retort food does not stand on its own, and the contents may spill out if opened. There is a problem in that it is necessary to transfer it to another container or the like, which is time-consuming. Therefore, the challenge of this invention was to improve and open the packaging box for retort food mentioned above. You can put the retort food back into the packaging box and stand it up in the microwave. The goal is to make it possible.

0004

[Means to solve the problem]

In order to solve the above problem, the packaging box of this invention has fold lines 51 and 52. The sides of the two side walls 10a, 10b divided by the crease lines 51, 52 of the cylindrical body to be folded in half. The lid wall 11 is connected to the lid wall 11 through curved fold lines 53a and 53b that curve downward at the upper edge of each a, 11b are arranged in succession, and a narrow fold is formed on the lower edge of the cylinder body spanning the fold lines 51, 52. The folding pieces 40 are connected to each other via the fold line 58, and the cylindrical body is located between both folding pieces 40. A bottom wall 30 is connected to at least one of the lower edges of the Intersect on the fold lines 51 and 52 located at the center of each folding piece 40 from both ends of the fold line 58. diagonal fold lines 54a, 54b are provided, and two diagonal fold lines 54a, 54b are provided. A pair of folds connecting the intersection points and whose central part passes through the lower ends of each side wall 10a, 10b. A configuration in which lines of sight 55a and 55b are provided is adopted.

[0005]

[Effect]

The packaging box configured as described above has diagonal fold lines 54a and 5 above the folding piece 40. When the part surrounded by 4b is pushed into the center of both side walls 10a and 10b, a rectangular shape is formed. A bottom opening A is formed and the fold lines 55a and 55b of each side wall 10a and 10b are The upper part is curved to form a product storage space. After folding the folding piece 40 to the bottom opening A side, close the bottom opening A with the bottom wall 30. When the packaging box is closed and the lid walls 11a and 11b are folded over each other, the packaging box is completed. this state Since the bottom is a rectangular plane, the packaging box itself stands up.

[0006]

【Example】

Examples will be described below with reference to the drawings. The packaging box shown in FIG. 1 is assembled from the blanks shown in FIG. This blank has a side wall 1 with an arcuate upper edge curved downward and a flat lower edge. 0a and 10b are connected at one side edge through a fold line 51, and one side wall 10a is A glue allowance 20 is continuously provided on the other side edge via a fold line 52.

[0007] The side walls 10a, 10b have curved fold lines 53a, 53b on their respective upper edges. Lid walls 11a, 11b whose tip edges are curved outward through are connected to each other, and one lid wall 11b has a folded trigger of the lid wall 11b. A notch 12b for straining is formed.

[0008] Also, the side walls 10a, 10b and the side wall 10 are centered around the fold lines 51, 52. a. A folding piece 40 having a width L is connected to the lower edge of the glue allowance 20 via a folding line 58. The bottom wall 30 is connected to the lower edge between the folded pieces 40 of the side wall 10a via the fold line 56. It is set up. This bottom wall 30 has a length L and has a fold line 57 at its tip edge. The bent pieces 31 are arranged in series.

[0009] Further, the side walls 10a, 10b and the glue allowance 20 are provided with the glue allowance 20 on the side. When attached to the wall 10b, both ends of the fold line 58 intersect on the fold lines 51 and 52. Diagonal fold lines 54a, 54b, and 54c are provided, and the diagonal fold lines 54a, It connects the two intersections of 54b and 54c, and the center part passes through the lower end of each side wall 10a and 10b. A pair of fold lines 55a and 55b are provided along the line. Also, for the glue fee of 20, A fold line 55c corresponding to a portion overlapping with the fold line 55b is provided, and the fold line 55c corresponds to the fold line 55b. Piece 40 is provided with a fold line 59 for manufacturing convenience and foldability. It is.

0010 As shown in FIG. 0b to form a cylindrical body that is folded in half. And as shown in Figure 4 , a push-in portion surrounded by fold lines 51, 52 and diagonal fold lines 54a, 54b, 54c. When 13a, 13b, and 21 are pushed into the center of side walls 10a and 10b, diagonal creases are formed. The part surrounded by lines 54a, 54b, 54c and fold lines 55a, 55b is on the outside. A protruding rectangular bottom opening A is formed. The folding piece 4 is inserted into this bottom opening A. 0 and the bottom wall 30 and insert the bent piece 31 to form the bottom. The center portions of both side walls 10a and 10b are curved outward along lines 55a and 55b, and the product is storage space is created.

[0011] Therefore, put the product in this, fold the lid walls 11b and 11a one after another, overlap them, and cover the lid. When the wall 11a and the bottom wall 30 are fixed with adhesive tape B, packaging of the product is completed. In this way, when the assembly is completed, the bottom surface will be flat as shown in Figure 1. This allows the entire box to stand upright. Note that the fold lines 55a and 55b do not necessarily need to be curved as illustrated. However, it is preferable to curve it because it follows the curved side walls 10a and 10b. Yes.

0012

【effect】

As mentioned above, the packaging box of this invention has a rectangular flat bottom when assembled. Therefore, the entire box can be stood up, and the lid walls 11a and 11b are It can be opened and closed as easily as before. Therefore, when heating retort food packaged in this packaging box in a microwave oven, , after opening the retort food taken out of the packaging box, put it back into the packaging box, and then You can heat it upright in the microwave, so you can heat it upright in the microwave. This also saves you the trouble of transferring the contents to another container.

[Brief explanation of drawings]

[Fig. 1] A perspective view showing an embodiment of this invention.

[Fig. 2] Plan view showing the assembly blank same as above.

[Figure 3] A perspective view showing the state before assembly of the same as above.

[Fig. 4] A perspective view showing the same as the above during assembly.

[Fig. 5] Perspective view showing a conventional example

[Explanation of symbols]

10a, 10b Side walls 11a, 11b Lid wall 12b Notches 13a, 13b Pushing part 20 Gluing allowance 21 Pushing part 30 Bottom wall 31 Folding piece 40 Folding piece 51, 52, 53a, 53b, 55a, 55b, 55
c, 56-59 Crease lines 54a, 54b, 54c Diagonal crease lines

Claims (1)

[Scope of utility model registration request] Claim 1: Two side walls 10a partitioned by fold lines 51, 52 of a cylindrical body that is folded in half along fold lines 51, 52;
Lid walls 11a and 11b are connected to the upper edge of each of the tubes through downwardly curved curved fold lines 53a and 53b, and a narrow folding piece 40 spanning the fold lines 51 and 52 is attached to the lower edge of the cylindrical body. are connected to each other via the fold line 58,
The bottom wall 30 is connected to at least one of the lower edges of the cylindrical body located between both folding pieces 40 via a folding line 56, and a folding line extends from both ends of the folding line 58 to the center of each folding piece 40. Diagonal fold lines 54a and 54b that intersect on 51 and 52
The packaging box is further provided with a pair of fold lines 55a and 55b that connect the two intersections of the diagonal fold lines 54a and 54b and whose central portions pass through the lower ends of the respective side walls 10a and 10b.