JP2011121620A - Box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a box facilitating assembling and being hardly broken. <P>SOLUTION: Flaps 16a, 16b are formed in continuous with opening edges 8a, 8b of one opening of a rectangular frame-like body 2 having an upper opening and a lower opening, and flaps 22a, 22b are formed in continuous with opening edges 12a, 12b of one opening. Curved insertion holes 18a to 18d are arranged near ends of the opening edges 12a, 12b of the flaps 16a, 16b, and have one-side ends positioned at opening edges 8a, 8b of the flaps 16a, 16b and other ends positioned at tip sides of the flaps 16a, 16b and are curved in cavity forms at the opening edges 12a, 12b. Engagement segments 20a to 20d are arranged at edges opposite to the opening edges 12a and 12b of the other ends of the insertion holes 18a to 18d and extend in substantial linear forms toward the opening edges 8a, 8b. Edges of the flaps 22a, 22b opposite to the opening edges 12a, 12b have recesses 24a to 24d in such a way that they may be engaged with the engagement segments 20a to 20d, respectively, in a state that the flaps 22a, 22b are overlapped on the flaps 16a, 16b. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a box, and more particularly, to a box in which one of two adjacent flaps is inserted and fixed to the other.

  Conventionally, for example, a box provided with a flap as described above is disclosed in Patent Document 1. In the technique disclosed in Patent Document 1, a convex cut is formed in one of two adjacent flaps of a cardboard box to form an insertion slot. When one of the flaps is folded and the other adjacent flap is overlapped thereon, a convex insertion portion having a size corresponding to the cut is formed at a position corresponding to the convex cut. Thus, two cuts are formed in the other flap. Bend one flap, and then fold and overlap the other flap, insert the convex insertion part into the convex insertion slot, engage each other's shoulders, and fix the two flaps is doing.

JP 2007-22562 A

  In the box of Patent Document 1, when inserting the insertion portion into the insertion port, the insertion portion must be bent and inserted, and the insertion operation could not be performed smoothly. In addition, after insertion, since it is fixed by engagement of both shoulders of the insertion port and the insertion portion, when a heavy object is accommodated inside the box, the weight is concentrated on the engaged portion. , Easy to break.

  An object of the present invention is to provide a box that is easy to assemble and is not easily damaged.

  The box of one embodiment of the present invention has a main body. The main body has a frame shape having rectangular openings on the upper and lower sides, and is made of paper such as cardboard. The upper and lower two openings of the main body have two first opening edges that are parallel to each other and two second opening edges that are orthogonal to and parallel to the two first opening edges. . Two rectangular first flaps are formed in series with the first opening edge of one of the two openings. These first flaps are folded toward one opening side along the first opening edge, thereby closing the one opening. In the one opening, two substantially rectangular second flaps are formed continuously with the two second opening edges. These second flaps are bent along the second opening edge to one opening side and overlap the upper sides of the two first flaps. A total of four curved insertion holes are provided in the vicinity of the end of each first flap on the second opening edge side. These four curved insertion holes have one end located on the first opening edge side of the first flap and the other end located on the side opposite to the first opening edge side, on each second opening edge side. It is concavely curved. When the second flaps are overlaid on the two first flaps, the ends of the ends opposite to the second opening edges of the two second flaps have four curved insertions, respectively. Inserted into the hole. A total of four locking holes extending substantially linearly toward the first opening edge side are formed on the edge of the curved insertion hole opposite to the second opening edge on the other end side. Is provided. In a state where each second flap is overlaid on the two first flaps, each lock is located at a position corresponding to each lock hole on the edge opposite to the second opening edge of each second flap. A total of four first notches are provided to engage the holes.

  In the box configured in this manner, it is only necessary to insert the tips of both ends of the second flap into the curved insertion slot, so that the assembly can be easily performed. Furthermore, after the second flap is inserted into the insertion opening, the upper surfaces of the tips of the ends of the second flap are in surface contact with the lower surface of the first flap, so that they are firmly fixed by friction between them, The fixing of the second flap to the first flap is not automatically released. And since the 1st notch is each engaging with each latching hole, fixation of a 2nd flap is not cancelled | released more. Even when a heavy object is accommodated inside the box, the entire portion of the first and second flaps that are in surface contact with each other has a weight, and only a specific portion is not heavy.

  In a position corresponding to one end of the four curved insertion holes in the edge on the first opening edge side of each second flap in a state where each second flap is overlaid on the two first flaps, A total of four second cutouts that engage one end of the curved insertion hole can also be provided.

  If comprised in this way, since a 2nd flap will engage with a 1st flap also at the one end part side of each curved insertion hole, fixation of a 2nd flap is not cancelled | released further.

  Both ends of the end opposite to the second opening edge of each second flap can be curved corresponding to the four curved insertion holes. If comprised in this way, the insertion to the four curved insertion holes of a 2nd flap can be performed smoothly.

  As described above, the box according to the present invention is easy to assemble, can more reliably prevent the flaps from naturally opening after being assembled, and is not easily damaged.

It is a figure which shows the assembly process of the cardboard box of one Embodiment of this invention. It is an enlarged plan view of the engaging part of the cardboard box of FIG. It is an expansion perspective view of the short side flap of the cardboard box of FIG. FIG. 2 is a partially omitted plan view of the cardboard box of FIG. 1. It is an expanded view of the cardboard box of FIG.

  A box according to an embodiment of the present invention is made of, for example, corrugated paper, and has a main body 2 as shown in FIG. The main body 2 has two side walls 4a and 4b having the same rectangle, for example, a rectangular shape, which are positioned in parallel with a predetermined interval. End walls 6a and 6b are formed to be connected to both ends of each of the side walls 4a and 4b. The end walls 6a and 6b are also the same rectangle, for example, a rectangular shape, and are positioned in parallel to each other and orthogonal to the side walls 4a and 4b. That is, the side walls 4a and 4b are adjacent to the end walls 6a and 6b, and are configured in a frame shape. The main body 2 is formed by folding corrugated cardboard cut as will be described later.

  Two rectangular openings, for example, rectangular shapes, are formed above and below the main body 2 constituted by the side walls 4a and 4b and the end walls 6a and 6b. These two openings have two first opening edges facing each other, for example, long-side opening edges 8a, 8b, 10a, and 10b at the upper and lower ends of the side walls 4a and 4b, respectively. Further, two second opening edges, for example, short-side opening edges 12a, 12b, 14a, and 14b, which are orthogonal to the long-side opening edges 8a and 8b and are opposed to each other, are formed at the upper ends of the end walls 6a and 6b. ing.

  Two first flaps, for example, long side flaps 16a and 16b, are formed in tandem with the long side opening edges 8a and 8b. The long side flaps 16a and 16b have two rectangular openings (one of the two openings) surrounded by the long side opening edges 8a and 8b and the short side opening edges 12a and 12b. They are formed in the same rectangular shape. As shown in FIG. 1B, these long side flaps 16a and 16b are bent at the long side openings 8a and 8b to cover the above rectangular openings.

  The long side flap 16a has curved insertion holes 18a and 18b, and the long side flap 16b has curved insertion holes 18c and 18d. The curved insertion holes 18a, 18b, 18c, and 18d are each formed, for example, by cutting out the long side flaps 16a and 16b in an arc shape of approximately ¼ circle having the same diameter. One ends of the curved insertion holes 18a and 18b are located in the vicinity of the long side opening 8a on both ends of the long side flap 16a. The other ends of the curved insertion holes 18a and 18b are located away from the long side opening 8a on the tip side of the long side flap 8a (the edge side opposite to the long side opening 8a). These curved insertion holes 18a and 18b are formed in a concave shape on both end edges (short side opening edge 12a12b) side of the long side flap 16a. That is, the centers of the curved insertion holes 18a and 18b are located on both end edges (short side opening edge 12a12b) side of the long side flap 16a. The thickness t (see FIG. 2) of the curved insertion holes 18a and 18b is uniform and is approximately twice the thickness of the corrugated cardboard constituting the box.

  The curved insertion holes 18a and 18b are formed in line symmetry with respect to an axis of symmetry passing through the center of the long side opening edge 8a in the long side flap 8a and perpendicular to the long side opening 8a. Similarly, the curved insertion holes 18c and 18d are also formed in the long side flap 8b. The curved insertion holes 18a and 18c have short side openings 12a and 12b on the long side flaps 8a and 8b when the openings are closed by the long side flaps 8a and 8b as shown in FIG. Is formed in line symmetry with respect to an axis of symmetry perpendicular to the short side openings 12a and 12b. Similarly, the curved insertion holes 18b and 18d are formed in line symmetry with respect to the same axis of symmetry.

  Engagement portions 20a, 20b, 20c, and 20d are formed by cutting at the center side edge portions of the long side flaps 16a and 16b at the other end side end portions of the curved insertion holes 18a, 18b, 18c, and 18d. These locking portions 20a, 20b, 20c, and 20d extend the central side edge of the long side flaps 16a and 16b at the other end of the curved insertion holes 18a, 18b, 18c, and 18d into a substantially right triangle shape. As shown in an enlarged view in FIG. 2, it has a length L1 that is about ½ of the length L of the curved insertion holes 18a, 18b, 18c, 18d, and the bottom of the curved insertion hole 18a. It has a length t1 that is substantially the same as the thickness t of 18 to 18d, and its base is located on the long side openings 8a and 8b side.

  A second flap, for example, a short side flap 22a, 22b is formed in continuation with the short side opening edges 12a, 12b. These short side flaps 22a and 22b are formed in a rectangular shape, for example, a rectangular shape, are bent to one opening side along the short side opening edges 12a and 12b, and are superimposed on the long side flaps 8a and 8b. The length of the short side flap 22a from the short side opening edge 12a to the tip is as shown in FIG. 1B in the state where the long side flaps 8a and 8b are bent, from the short side opening edge 12a to the locking portions 20b and 20d. Is formed approximately equal to the distance up to. Similarly, the length from the short side opening 12b to the tip of the short side flap 22b is formed to be substantially equal to the distance from the short side opening edge 12b to the locking portions 20a, 20c in a state where the long side flaps 8a, 8b are bent. ing. Curved portions, for example, rounded portions 23a, 23b, 23c, and 23d, are formed at both ends of the short edge flaps 22a and 22b opposite to the short side opening edges 12a and 12b, that is, at both ends of the leading edge. Has been. These round portions 23a to 23d are formed in substantially the same shape as the curved insertion holes 18a to 18d.

  First cutouts 24a and 24b are formed at the front end side of the short side flap 22a, and first cutouts 24c and 24d are also formed at the front end side of the short side flap 22b. These notches 24a, 24b, 24c, and 24d are formed by cutting the short side flaps 22a and 22b into a substantially rectangular shape. The distance from the end on the long side opening edge 8a side of the short side flap 22a to the engaging portion 24a is formed substantially equal to the distance from the long side opening edge 8a to the locking portion 20b in the long side flap 16a. Furthermore, the distance from the end on the long side opening edge 8b side of the short side flap 22a to the engaging portion 24b is formed to be approximately equal to the distance from the long side opening edge 8b to the locking portion 20d in the long side flap 8b. The distance from the end on the long side opening edge 8a side of the short side flag 22b to the engaging portion 24c is formed substantially equal to the distance from the long side opening edge 8a to the locking portion 20a in the long side flap 16a. The distance from the end on the long side opening edge 8b side of the short side flap 22b to the engaging portion 24d is formed substantially equal to the distance from the long side opening edge 8b to the locking portion 20c in the long side flap 16b. .

  Further, the distance between the edge 25a located on the center side of the short side flap 22a of the engaging portion 24a shown in FIG. 3 and the end on the long side opening edge 8a side of the short side flap 22a is the long side of the long side flap 16a. It is formed approximately equal to the distance from the opening edge 8a to the bottom of the locking portion 20b. Similarly, the distance between the edge 25b located on the center side of the short side flap 22a of the engaging portion 24b and the end on the long side opening edge 8b side of the short side flap 22a is the long side opening edge 8b of the long side flap 16b. To the bottom of the locking portion 20d. The distance between the edge located on the center side of the short side flap 22b of the engaging portions 24c and 24d and the end on the long side opening edge 8a and 8b side of the short side flap 22b is the long side opening in the long side flaps 16a and 16b. It is formed approximately equal to the distance from the edges 8a, 8b to the bottom sides of the locking portions 20a, 20c.

  As shown in FIG. 1 (c), while folding the short side flaps 22a and 22b along the short side openings 12a and 12b, the middle of the short side flaps 22a and 22b is somewhat bent to the side opposite to the main body 2 side. The both sides of the tips of the short side flaps 22a and 22b are inserted into the curved insertion holes 18a, 18b, 18c and 18d, respectively. Accordingly, as shown in an enlarged view in FIG. 4, the engaging portion 24a engages with the locking portion 20b, the engaging portion 24b engages with the locking portion 20d, and the engaging portion 24c becomes the locking portion 20a. The engaging portion 24d is engaged with the locking portion 20c. The insertion port is formed in an arc shape like the curved insertion holes 18a, 18b, 18c, 18d, and rounded portions 23a, 23b, 23c, 23d are provided at both ends of the short side flaps 22a, 22b. Therefore, the insertion of the both side ends of the short side flaps 22a, 22b into the curved insertion holes 18a, 18b, 18c, 18d is smoothly performed without any catch. Moreover, after insertion, both sides of the front end of the short side flaps 22a and 22b are brought into surface contact with the back surfaces of the long side flaps 16a and 16b from the arc-shaped insertion holes 18a, 18b, 18c and 18d. The short side flaps 22a and 22b are prevented from returning to the positions shown in FIG. In addition, since the edges 25a to 25d of the engaging portions 24a to 24d are engaged with the bottom sides of the locking portions 20a to 20d, the short side flaps 22a and 22b try to return to the original state more reliably. To prevent it. Further, as shown in FIG. 2, each of the locking portions 20a to 20d has a length dimension of L1 and is so wide that it can be easily engaged with the first notches 24a to 24d.

  Further, second notches 30a and 30b are formed at both end edges of the short side flap 22a. The distance from the second cutout 30a to the short side opening 12a is substantially equal to the distance from one end of the curved insertion hole 18b to the short side opening 12a. Similarly, the distance from the second notch 30b to the short side opening 12a is substantially equal to the distance from one end of the curved insertion hole 18d to the short side opening 12a. Second notches 30c and 30d are also formed at both end edges of the short side flap 22b. The distance from the second cutout 30c to the short side opening 12b is substantially equal to the distance from one end of the curved insertion hole 18a to the short side opening 12b. The distance from the second cutout 30d to the short side opening 12b is formed substantially equal to the distance from one end of the curved insertion hole 18c to the short side opening 12b.

  Therefore, as described above, when both sides of the front ends of the short side flaps 22a and 22b are respectively inserted into the curved insertion holes 18a, 18b, 18c and 18d, as shown in an enlarged view in FIG. 30b, 30c, and 30d are engaged with one end portions of the curved insertion holes 18b, 18d, 18a, and 18c. Therefore, since the short side flaps 22a and 22b are engaged with the both ends of the curved insertion holes 18b, 18d, 18a and 18c by the first and second cutouts 24a to 24d and 30a to 30d, the short side flap is surely secured. It is possible to prevent 22a and 22b from returning to the original state.

  In this way, for example, the bottom of the cardboard box is formed. Therefore, when a heavy object is accommodated in the cardboard box, the weight relates to the long side flaps 16a and 16b and the short side flaps 22a and 22b constituting the bottom part, and the weight can prevent the bottom part from coming off. .

  Long side lid flaps 26a and 26b and short side lid flaps 28a and 28b are formed integrally with the long side opening edges 10a and 10b and the short side opening edges 14a and 14b of the other opening of the main body 2, respectively. . As shown in FIG. 1D, these are each formed in a rectangular shape, for example, a rectangular shape, and are bent along the long side opening edges 10a and 10b and the short side opening edges 14a and 14b to form a lid. . In FIG. 1, the long side lid flaps 26a and 26b and the short side lid flaps 28a and 28b are shown to be folded last, but can be folded first.

  Such a cardboard box is formed using a cardboard paper cut as shown in FIG. In FIG. 5, the same reference numerals are given to portions corresponding to the above-described configurations. Reference numeral 32 denotes an adhesive margin portion for bonding the folded corrugated cardboard when the cut corrugated cardboard is folded to create the main body 2. The end walls 6a and 6b are formed with long holes 34a and 34b for a worker carrying the box to put a finger.

  In the above embodiment, the cardboard box has a rectangular parallelepiped shape, but it can also be formed in a cubic shape. Moreover, in said embodiment, although the fixation of the flap using an arc-shaped insertion port was performed only to one opening of the main-body part 2, the other opening is similarly fixed using an arc-shaped insertion port. You can also. In the above embodiment, the box is formed of corrugated paper. However, as a material, a material other than corrugated paper, for example, resin or metal can be used.

2 Body part 4a, 4b Side wall 6a 6b End wall 8a 8b Long side opening edge (1st opening edge)
12a 12b Short side opening edge (second opening edge)
16a 16b Long side flap (first flap)
18a thru | or 18d Arc-shaped insertion part 20a thru | or 20d Engagement part 22a, 22b Short side flap (2nd flap)
24a to 24d 1st notch

Claims (3)

Two openings each having a rectangular shape on the upper and lower sides, each opening having two first opening edges parallel to each other, and two second openings perpendicular to and parallel to the two first opening edges A body having an edge;
Two rectangular firsts that are respectively connected to the two first opening edges of one of the two openings, bent to the one opening side along the first opening edge, and close the one opening. And the flap
The one opening is connected to the two second opening edges, is bent to the one opening side along the second opening edge, and overlaps the upper side of the two first flaps. Two second flaps,
Each of the first flaps is provided in the vicinity of the end of each second opening edge, and one end is located on the first opening edge of the first flap, and the other end is on the first opening edge. The second of the two second flaps is located on the opposite side, curved concavely on the respective second opening edge side, and when each said second flap is overlaid on said two first flaps A total of four curved insertion holes into which both ends of the end opposite to the opening edge of each are inserted,
A total of four latches provided on the edge opposite to the second opening edge on the other end side of these curved insertion holes and extending substantially linearly toward the first opening edge. Holes,
In a state where the second flaps are overlaid on the two first flaps, at positions corresponding to the respective locking holes on the edge opposite to the second opening edge of the second flap, A total of four first cutouts provided to engage with the respective locking holes,
Box to equip.   The box according to claim 1, wherein the four curves at the edge portion on the first opening edge side of the second flaps in a state where the second flaps are superimposed on the two first flaps. A box provided with a total of four second notches that engage with one end of each of the curved insertion holes at a position corresponding to one end of the insertion hole.   3. The box according to claim 1, wherein both ends of an end portion of each second flap opposite to the second opening edge are curved corresponding to the four curved insertion holes.

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