JP3171863U - box - Google Patents

Abstract

The present invention provides a box that can be easily released and can be easily locked any number of times. The box includes a front wall, a rear wall, and a side wall. The lid 20 connected to the front edge of the rear wall 4 is folded back at a folding edge in the middle of the 20 lid substantially parallel to the front edge of the rear wall 4 to form a folded portion 24. The lid 20 is bent toward the front wall 2 at the front edge of the rear wall 4, and the folded portion 24 is in contact with the front wall 2. The folded portion 24 forms a notch for forming the tongue piece 34 that is separated from the substantially center of the folded edge toward the folded edge side, and the folded portion 24 is folded along a folding line that extends outward from both ends of the tongue piece 34. A cut is formed from both outer ends of the fold line toward the fold edge side. The tongue piece 34 engages with an engagement hole 38 formed in the front wall 2. [Selection] Figure 1

Description

  The present invention relates to a paper box, for example, and more particularly to a lid locking structure.

  Conventionally, as a paper box provided with a lid, for example, there is one disclosed in Patent Document 1. In the technique of Patent Document 1, a box having a front plate at the front edge of a rectangular bottom plate, a rear plate at the rear edge of the bottom plate, side plates at both side edges of the bottom plate, and upper portions thereof opened by the front plate, the rear plate, and the side plates In FIG. 2, a rectangular upper lid is provided continuously to the upper edge of the rear plate, and an insertion piece is provided at the front end of the upper lid. The insertion piece is inserted so as to overlap the inner surface of the upper end of the front plate, and maintains a state in which the opening is closed. A substantially C-shaped ruled line is formed in the center of the inserted piece over the depth direction of the inserted piece, and a V-shaped ruled line is formed by being surrounded by the ruled line and connecting the upper end of the ruled line with the C-shaped ruled line. A notch is formed so as to connect the tips of the V-shaped ruled lines, and a protruding piece is formed on the upper lid. Further, in a state where the insertion piece is inserted into the inner surface of the upper end of the front plate, a semicircular cut is formed at the upper end of the front plate corresponding to the portion where the V-shaped ruled line of the insertion piece is formed. .

JP 2003-291944 A

  According to the technique of Patent Document 1, in the state where the upper lid is closed, the upper lid can be opened by hooking the finger to the protruding piece of the upper lid at the position of the notch of the front plate and lifting the insertion piece. When inserted, the insertion piece is pressed inward, but as described above, the ruled lines are provided in a letter C shape and a V-shape, so the insertion pieces are bent at these ruled line portions, and the insertion pieces are irregular. There is no crease. However, according to the technique of Patent Document 1, the upper lid can be opened and closed many times, but in order to open the upper lid, it is necessary to lift the front plate by hooking a finger on the protruding piece of the upper lid, The work was troublesome.

  An object of the present invention is to provide a box that can be easily released from a state in which the lid is locked and that can be easily locked any number of times.

  The box according to one aspect of the present invention has a front wall and a rear wall each formed in the same general rectangular shape, and the front wall and the rear wall are arranged at intervals on at least the bottom side. Both side edges of the front wall and the rear wall are connected by a pair of side walls. Openings are formed at tips of the front wall, the rear wall, and the pair of side walls. A substantially rectangular lid is formed continuously with the leading edge of the rear wall. The lid has a substantially rectangular folded portion formed by folding back at a folding edge in the middle of the lid substantially parallel to the leading edge of the rear wall. The lid is bent toward the front wall at the front edge of the rear wall. In this bent state, the folded portion is in contact with the front wall. In the folded portion, a tongue piece is formed by forming a notch for forming a tongue piece that is separated from the substantially center of the folded edge toward the folded edge. The folded portion is folded along a first fold line extending outward from both ends of the tongue piece, and a fold cut is formed from both outer ends of the first fold line toward the fold edge side. . An engagement hole with which the tongue piece engages is formed in the front wall.

  If comprised in this way, in the state which the tongue piece has engaged with the hole for engagement, a tongue piece will remove | deviate from a hole for engagement by pushing a cover body to a rear wall type | mold, and a cover body can be opened easily. In addition, when the tongue piece is formed, the folding cut is formed in tandem with the first fold line, so that the tongue piece is automatically detached from the engagement hole by the elasticity of the box material, for example, paper. Can be prevented.

  The folded portion can be folded along a second folding line from the outer end of the folding cut toward the folded edge side. If comprised in this way, between the root part of a tongue piece and a bending edge will be bent at an acute angle, and a tongue piece will engage with the hole for engagement smoothly.

  As described above, according to the present invention, the lid can be easily released from the state in which the lid is locked to the engaging hole by the tongue piece, and the lid can be easily locked any number of times. it can.

It is a partial omission enlarged vertical side view of one embodiment of the present invention. It is an expanded view of the box of FIG. It is the perspective view which assembled the front wall, rear wall, and side wall of the box of FIG. It is the perspective view which assembled the front wall, the rear wall, and the side wall until the opening of the box of FIG. 1 was closed. FIG. 5 is a partially omitted front view of the state in which the folded portion of the lid body is folded and the tongue piece is raised from the state of FIG. 4.

  A box according to an embodiment of the present invention is made of, for example, paper, and is configured by cutting the paper into a developed state as shown in FIG. 2 and assembling the cut paper. In FIG. 2, the broken line indicates a fold line, and the solid line shown on the inner side of the outer edge is a cut line.

  In the developed view, substantially the same rectangle, for example, a rectangular front wall 2 and rear wall 4 are arranged in a vertically long state with a gap therebetween. Within the space between the front wall 2 and the rear wall 4, one side wall 6 having a vertically long and substantially rectangular shape has one longitudinal edge of the front wall 2 and the longitudinal edge of the rear wall 4 facing this longitudinal edge. And are arranged in series. The other side wall 8 having the same shape as the side wall 6 is connected to the longitudinal edge of the rear wall 4 that is not connected to the side wall 6. These side walls 6 and 8 are formed with inverted Y-shaped fold lines. An adhesive margin 10 is integrally formed on the longitudinal edge of the front wall 2 that is not continuous with the side wall 6. Both longitudinal edges of the front wall 2 and the rear wall 4 are folded in a mountain, and the glue margin 10 is attached to the inner surface of the edge not connected to the rear wall 4 of the side wall 8, When the valley folds along the fold line, as shown in FIG. 3, the front wall 2 and the rear wall 4 are arranged maintaining a predetermined distance in the lower part, and the distance between the two becomes narrower toward the upper part. Is formed. Openings for taking in and out articles are formed at the front edges of the front wall 2, the rear wall 4 and the side walls 6, 8, that is, the upper edge. After the article is received from the opening, the opening is closed by bringing the front wall 2 into contact with the rear wall 4 as shown in FIG.

  As shown in FIG. 2, bottom wall forming members 12, 14, 16, and 18 are integrally formed on the lower edge of the front wall 2 and the rear wall 4 and on the lower edges of the side walls 6 and 8, respectively. The bottom wall is formed. Since the structure of the bottom wall is irrelevant to the gist of the present invention, a detailed description is omitted.

  A lid 20 is formed continuously with the upper end edge of the rear wall 4. The lid 20 is formed in a rectangular shape, for example, a horizontally long rectangular shape, and is bent at a position slightly above the center in the vertical direction so as to be parallel to the leading edge of the rear wall 4, for example, the upper edge. A folded portion 24 is formed along the line 22 by being folded as shown in FIG. The fold line 22 becomes a folded edge. In a state where the folded portion 24 is folded, the folded portion 24 includes a tongue piece forming cut 26 in a convex arc shape toward the folding line 22 from a position away from the folding line 22 near the center of the folding line 22. Is formed. First fold lines 28, 28 are formed to be parallel to the fold line 22 and have the same length from both ends of the tongue-forming cut 26 to the outside, and the circles of the second fold lines 28, 28 are formed. Incisions 30 and 30 for bending are formed in a straight line outward from the end opposite to the arc-shaped portion 26 to the middle toward the folding line 22 side. Curved second fold lines 32 and 32 are formed from the ends of the fold cuts 30 and 30 opposite to the fold lines 28 and 28 toward both ends of the fold line 22, respectively. By folding the bent portion 24 into a mountain fold along the fold lines 28 and 32, the portion where the cut 26 is formed protrudes from the fold line 22, thereby forming an engaging tongue piece 34.

  As shown in FIGS. 2 and 3, a tongue-like folded piece 36 is integrally formed at the upper end edge of the front wall 2, and the upper end edge of the front wall 2 is folded into a mountain and folded into the opening. It is sandwiched between the inner surface of the front wall 2 and the portion woven inside the side walls 6 and 8. Further, an engagement hole, for example, a through hole 38 is formed in the center slightly below the upper end edge of the front wall 2, and its lower edge is a linear engagement edge 40.

  The lid 20 is folded at the upper edge of the rear wall 4 and overlapped with the front wall 2 as shown in FIG. 1 so that the tongue piece 34 can be inserted into the engagement through hole 38. 38 is formed. As described above, the tongue piece 34 is brought into contact with the engaging edge 40 in a state where the lid 20 is folded in a mountain. Thereby, the lid 20 is closed and the lid 20 does not open naturally. In FIG. 1, the thickness of the paper is exaggerated considerably.

  In particular, the tongue piece 34 is not manufactured simply by cutting and raising the folded portion 24 along the tongue piece forming cut 26, but is also formed between the first fold line 28 and the second fold line 32. Therefore, the tongue piece 34 is not automatically detached from the straight edge 40 due to the elasticity of the paper in a state where the tongue piece 34 is in frictional contact with the straight edge 40 of the through hole 38. In addition, by pushing the lid 20 somewhat toward the through hole 38, the tongue piece 34 comes off the straight edge 40, and the lid 20 is automatically opened by the elasticity of the paper. When the lid 20 is closed again, the tongue 34 is pushed into the through hole 38 so that the tongue 34 is in frictional contact with the engaging edge 40. Accordingly, the lid 20 can be opened and closed any number of times, and the lid 20 does not automatically open when the lid 20 is closed. Further, since the second fold line 32 is formed, the angle formed by the straight line connecting the base portion of the tongue piece 34 and the fold line 22 with respect to the front wall 2 is an acute angle, and the elasticity of the paper Since the force for opening the folded portion 24 is applied to the engaging edge 40 via the tongue piece 34, the lid 20 does not automatically open.

  In the above embodiment, the side walls 6 and 8 are valley-folded along the inverted Y-shaped fold line, but this is not necessary in some cases. In that case, the lid 20 needs to be extended so as to close the opening that remains open.

2 Front wall 4 Rear wall 6 8 Side wall 20 Lid 22 Folding line (folding edge)
24 Folding portion 26 Tongue piece forming cut 28 First folding line 30 Bending cut 32 Second folding line 34 Tongue piece 38 Through hole (engagement hole)

Claims (2)

The front wall and the rear wall, each formed in the same general rectangular shape, are arranged at least at the bottom side, and are configured by connecting both side edges of the front wall and the rear wall with a pair of side walls, In a box having an opening at the front wall, the rear wall, and the pair of side walls,
A substantially rectangular lid body is formed continuously with the leading edge of the rear wall, and the lid body is folded back at a folding edge in the middle of the lid body so as to be substantially parallel to the leading edge of the rear wall. The lid is folded to the front wall side at the front edge of the rear wall, and in this folded state, the folded portion contacts the front wall, and the folded portion A tongue piece is formed by forming a notch for forming a tongue piece that is separated from the center of the edge toward the folded edge side, and the folded piece is formed along a first folding line that extends outward from both ends of the tongue piece. A bending notch is formed from both outer ends of the first fold lines toward the bending edge side, and an engagement hole for engaging the tongue piece is formed in the front wall. That box.   2. The box according to claim 1, wherein the folded portion is folded along a second folding line from the outer end of the folding cut toward the folded edge side.

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