JP2010058796A - Packaging case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging case which can be easily assembled when packaging, and can be manufactured at a low cost. <P>SOLUTION: The packaging case for packaging an article by folding side plates 2 and 3 forming each face of a peripheral wall 1 in a prismatic shape, and folding inwardly flaps 4 and 5 extending from upper and lower sides of the side plates 2 and 3 is constituted of one blank in which two row members 11 having the side plates 2 and 3 and the flaps 4 and 5 forming one half of the peripheral wall 1. In the blank, a fold-in part 6 and a connection part 7 are successively provided from the side plate 3 on one end facing each other of each row member 11, a flap overlapping part 7a is provided on the connection part 7 of each row member 11, and each flap overlapping part 7a is connected to the flap 4 to connect the row members 11 to each other. The row members 11 are folded so that the connection parts 7 thereof overlap the inner side of the other row member 11. The fold-in part 6 and the connection part 7 overlap with their boundary being valley-folded, and the flap 4 is folded inwardly together with the flap overlapping part 7a. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a packaging case suitable for packaging long objects such as wooden floor materials used in buildings.

  Conventionally, when packaging a long wood floor material, as shown in FIG. 9, each pair of side plates 52 and 53 forming the long and width surfaces of the peripheral wall 51 is formed in a rectangular tube shape as a packaging case made of cardboard. The short flaps 54 and 55 extending from the upper and lower sides of the side plates 52 and 53 are bent inward to hold the outer peripheral portion of the floor material F.

  This packaging case is composed of two divided blanks 56 divided in half in order to prevent the blank from becoming extremely long in one direction. Each divided blank 56 includes side plates 52 and 53 and flaps 54 and 55 that form two surfaces of the peripheral wall 51, and a passage piece 57 is continuously provided at one end of the side plate 53.

  When the packaging case is manufactured, the divided blanks 56 are joined together by pasting the passage pieces 57 to the inner surfaces of the side plates 52 of the other divided blanks 56. When the split blanks 56 are joined together in this manner, the floor material F is assembled in the same manner as a normal packaging case made up of one blank.

  However, in the packaging case as described above, since the divided blanks are glued manually, there is a problem that the processing cost is very high.

  Then, this invention makes it a subject to provide the packaging case which can be manufactured at low cost, without impairing the assembly property at the time of packaging.

  In order to solve the above problems, the present invention is a packaging case for packaging an article by folding side plates forming each surface of the peripheral wall into a rectangular tube shape, folding the flaps extending from the top and bottom of each side plate inward, It consists of one blank with two side plates with flaps and side plates forming half of the peripheral wall, and this blank has side plates with folding and connecting parts at opposite ends of each row material. Are connected to each other in sequence, provided with a flap overlapping portion at the connecting portion of each row material, connecting the flap overlapping portions and the flaps to each other, and connecting the row materials to each other. The row members were folded so as to overlap with each other, the folding portion and the connecting portion were overlapped with each other at the boundary, and the flap was folded inward together with the flap overlapping portion.

  In addition, a flap overlapping part is also provided in the folding part of each row material, the flap overlapping part and the flap overlapping part of the connecting part are connected, and the flap overlapping part overlaps with the valley folding of the folding part and the connecting part. I did it.

  In order to avoid mutual interference, the edge of the flap overlapping part of the folding part and the edge of the flap adjacent thereto are cut out obliquely.

  In order to suppress the repulsion of the folded part, the folding part and the connecting part, and the side plate and the end part of the flap that overlap with each other are crushed in the thickness direction of the blank.

  In the packaging case according to the present invention, since one blank is folded and assembled, it is possible to suppress processing costs without taking time and effort to apply glue during manufacturing, and bend in advance so that the folded portion and the connecting portion overlap each other. In other words, when packaging an article, it can be assembled in the same manner as a conventional packaging case.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  The packaging case according to the present invention comprises a single cardboard blank shown in FIG. 1, and is assembled into the shape shown in FIG. 7 to wrap a long wooden floor material F.

  In this blank, side plates 2 and 3 having a long surface and a width surface forming a half of the peripheral wall 1 are connected in the horizontal direction, and flaps 4 and 5 are connected to the upper and lower sides of the side plates 2 and 3, respectively. Are arranged in parallel.

  A fold-in part 6 and a connecting part 7 are sequentially provided from the side plate 3 at opposite ends of each row material 11. In the folding part 6 and the connecting part 7, flap overlapping parts 6a and 7a are provided on the upper and lower sides, respectively, and the adjacent flap overlapping parts 6a and 7a are connected. The row members 11 are connected to each other by connecting the flap overlapping portions 7a and the flaps 4 to each other.

  The flap overlapping part 6a of the folding part 6 and the end part of the flap 5 adjacent thereto are cut obliquely from the respective leading ends to the adjacent base ends in order to prevent mutual interference when folded during assembly. It is missing.

  A cut is made along the ruled line at the boundary between the folding part 6 and the connecting part 7, and a cut is also made along the ruled line at the base ends of the flap overlapping parts 6a and 7a. In addition, perforations that are intermittent along the ruled line are also formed at the boundary between the side plate 2 and the flap 4. These cuts are for facilitating bending during assembly.

  In addition, the folded portion 6 and the connecting portion 7 which are shaded in the figure, the end portion of the other row material 11 to which the connecting portion 7 is connected, and the end portion of the flap 5 adjacent to the flap overlapping portion 6a are folded at the time of assembly. In order to suppress the repulsion of the overlapped portion, the cardboard is crushed in the thickness direction.

  In order to assemble a packaging case from such a blank, first, as shown in FIG. 2 and FIG. 4 (a), the mutual connecting portions 7 of each row material 11 overlap the inside of the other row material 11, The row members 11 are bent.

  Next, as shown in FIG.3 and FIG.4 (b), the folding part 6 and the connection part 7 are overlap | superposed by making the boundary into a valley, and flap superimposition part 6a, 7a is overlapped with this. If the packaging case is stored in this state, it is flat and not bulky.

  When a large number of floor materials F are stacked and packaged, the pair of side plates 2 and 3 of the peripheral wall 1 are bent into a rectangular tube shape as shown in FIGS.

  Next, as shown in FIGS. 6, 7, and 8 (b), the lower flap 5 is folded inward, and the flap 4 is folded inward together with the flap overlapping portions 6 a, 7 a, inside the peripheral wall 1. After the floor material F is inserted, the upper flap 5 is folded inward, the flap 4 is folded inward together with the flap overlapping portions 6a and 7a, overlapped on the flap 5, and banding or the like is completed.

  In the packaging case as described above, since one blank is folded and assembled, the processing cost can be suppressed without taking time and effort for pasting the glue as in the case of joining two conventional blanks. .

  Also, as shown in FIG. 5, if the folding portion 6 and the connecting portion 7 are folded in advance so that the floor material F is wrapped, the flaps 4 and 5 are simply folded as in the case of the conventional packaging case. It can be assembled by work and existing packaging machines can be used.

  In addition, when there is no problem in the strength of the corner portion, the flap overlapping portion 6a of the folding portion 6 may be omitted.

  Further, when thin cardboard is used as the material, the repulsion during assembly is weak, so that the cardboard may be omitted.

  In addition, in the said embodiment, although the surrounding wall 1 illustrated the thing of the square cylinder, the same structure is employable also in the packaging case in which the surrounding wall 1 makes a hexagonal cylinder or an octagonal cylinder.

The figure which shows the blank of the packaging case which concerns on this invention The perspective view which shows the state which folded the row materials same as the above The perspective view which shows the state which folded the folding part and connection part same as the above (A) End part enlarged perspective view of FIG. 2, (b) End part enlarged perspective view of FIG. The perspective view which shows the state which bent the surrounding wall same as the above in the shape of a square tube The perspective view which shows the state which bent the lower flap same as the above The perspective view which shows a packaging completion state same as the above (A) The end part expansion perspective view of FIG. 6, (b) The end part expansion perspective view of FIG. The perspective view which shows the assembly state of the conventional packaging case

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Perimeter wall 2, 3 Side plate 4, 5 Flap 6 Folding part 7 Connection part 6a, 7a Superposition part 11 Row material

Claims (4)

  The side plates (2, 3) forming each surface of the peripheral wall (1) are folded into a square tube shape, and the flaps (4, 5) extending from the top and bottom of each side plate (2, 3) are folded inward to wrap the article. In the packaging case, it is composed of a single blank in which two rows (11) with side plates (2, 3) and flaps (4, 5) forming half of the peripheral wall (1) are arranged in parallel. The blank is connected to the opposite ends of each row material (11) by sequentially connecting the folding portion (6) and the connection portion (7) from the side plate (3), and the connection portion (7) of each row material (11). Are provided with flap overlapping portions (7a), connecting the flap overlapping portions (7a) and the flaps (4) to each other, and connecting the row members (11) to each other. Fold the rows (11) together so that they overlap the inside of the rows (11) of the other, and fold the folds (6) and the connecting portions (7) and overlap the valleys (6) and the flaps (4). A packaging case characterized by being folded inward together with the flap overlapping part (7a).   The folding part (6a) of each row material (11) is also provided with a flap overlapping part (6a), connecting the flap overlapping part (6a) and the flap overlapping part (7a) of the connecting part (7), a folding part The packaging case according to claim 1, wherein the flap overlapping portions (6a, 7a) overlap each other as the valley folds between (6) and the connecting portion (7).   The flap overlap portion (6a) of the folding portion (6) and the end portion of the flap (5) adjacent to the flap overlap portion (6) are cut obliquely so as to avoid mutual interference. Or the packaging case of 2.   In order to suppress the repulsion of the folded portion, the folding portion (6) and the connecting portion (7) and the side plate (2) and the end of the flap (5) that overlap with the folding portion (6) are pushed in the thickness direction of the blank. 4. The packaging case according to claim 1, wherein the packaging case is crushed.

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