JP6988658B2 - Box and its box blank - Google Patents

Description

The present invention relates to a rectangular parallelepiped box having at least one of a bottom surface and a top surface composed of a pair of inner flaps and outer flaps, and a box blank thereof.

Commercially used one-piece packaging boxes are alternating length and width surfaces that are connected via a seam and the openings are closed by a pair of inner flaps and an outer flap that overlaps them. ing. These are well known as corrugated cardboard boxes such as 02 type (grooving type) and 04 type (assembled type) in JIS-Z1507, and various forms for accommodating a wide variety of articles are specified. .. When the contents are stored and packed in such a cardboard box, it is necessary to finally superimpose the outer flap on the inner flap and seal the butt portion of the outer flap with tape or the like. For example, Japanese Patent Application Laid-Open No. 2012- It is well known in Japanese Patent Publication No. 232795.

Japanese Unexamined Patent Publication No. 2012-232795

When the contents are put in a rectangular parallelepiped cardboard box whose top surface is composed of a pair of inner flaps and outer flaps and sealed, the pair of inner flaps are bent inward and then overlapped with these inner flaps. A pair of outer flaps need to be folded inward. At this time, the inner flap easily returns to the original upright state due to its springback, and the work of bending the outer flap inward is hindered. Therefore, it is necessary to bend the outer flap inward while pressing the inner flap against the spring back of the inner flap against the spring back of the inner flap, which hinders the smooth and quick sealing work of the cardboard box. This is especially noticeable in the case of long cardboard boxes.

An object of the present invention is to provide a box and a box blank capable of easily and quickly performing a packing operation by eliminating the adverse effect of the springback of the inner flap at the time of sealing.

A first embodiment of the present invention capable of achieving the above-mentioned object has a rectangular parallelepiped shape having a rectangular bottom surface and a top surface and a pair of length surfaces and width surfaces, and at least one of the bottom surface and the top surface is the pair. A box composed of a pair of outer flaps and inner flaps connected to the length surface and the width surface of the above via a ridge, respectively, and a first ridge separating the pair of outer flaps and the pair of length surfaces, respectively. It is formed on at least one of the pair of outer flaps so as to include a part of the outer flap, and the at least one outer flap projects from the at least one outer flap toward the pair of inner flaps on which the at least one outer flap is overlapped. It is characterized by having an opening stopper that presses against the flap.

In the present invention, when the inner flap is bent inward when the box is sealed, the inner flap passes through the opening stopper protruding inward from the outer flap adjacent to the inner flap, and the inner flap is bent approximately 90 degrees with respect to the width surface. At this point, the opening stopper is caught on the upper surface of the edge of the inner flap. This prevents the inner flap from returning due to the springback, and the outer flap can be folded without being affected by the springback of the inner flap.

In the box according to the first aspect of the present invention, the opening stopper has a bending line formed on the at least one outer flap parallel to a part of the first ridge, and a part of the first ridge. It can be formed by a groove-shaped slit which is engraved on the at least one outer flap so as to include and connects to both ends of the bending line.

Two said stoppers can be formed on the at least one outer flap corresponding to the pair of inner flaps.

The first and second outer flaps may be butt flaps.

The second aspect of the present invention has a rectangular bottom surface and top surface and a pair of length surfaces and width surfaces, and at least one of the bottom surface and the top surface has a ridge on the pair of length surfaces and width surfaces, respectively. A box blank having a rectangular shape composed of a pair of outer flaps and inner flaps connected to each other, the first length surface to which the first outer flaps are connected via a first ruled line, and the first. The first inner flap adjacent to the first outer flap is connected to the length surface of the first ruled line via a second ruled line orthogonal to the first ruled line, and the first inner flap is aligned with the first ruled line via a third ruled line. The first width surface to be connected and the second outer flap connected to the first width surface via the fourth ruled line parallel to the second ruled line and adjacent to the first inner flap form a straight line with the third ruled line. A second length surface connected via a fifth ruled line and a second length surface connected to the second length surface via a sixth ruled line parallel to the fourth ruled line and adjacent to the second outer flap. The second ruled line or the second ruled line on either the first length surface or the second width surface, the second width surface in which the inner flap is connected to the fifth ruled line via the seventh ruled line forming a straight line. A joint margin connected via an eighth ruled line parallel to the six ruled lines and joined in a state of being overlapped with any one of the first length surface and the second width surface, and close to the first ruled line. A fold line formed on the first outer flap in parallel with the ridge and a part of the first ruled line are engraved on the first outer flap and connected to both ends of the fold line. It is characterized by having a groove-shaped slit for defining the outline of the opening stopper together with the folding line.

In the box blank of the box according to the second aspect of the present invention, the opening stopper is the opening stopper along the second or eighth ruled line from the end edge of the first outer flap on the second or eighth ruled line side. It is preferably in the region up to the distance corresponding to the length of the first inner flap.

The two folding lines and the two grooved slits corresponding to the first and second inner flaps can be formed on the first outer flap.

It is preferable that the first, third, fifth and seventh ruled lines are scores, respectively, and the second, fourth, sixth and eighth ruled lines are creases, respectively.

A third aspect of the present invention is in a box characterized in that a box blank according to the second aspect of the present invention is attached to the body, and the fourth and eighth ruled lines are bent and folded flat.

In the box according to the third embodiment of the present invention, it is effective that the third and seventh ruled lines are never bent.

According to the present invention, since the outer flap is provided with an opening stopper, the opening stopper prevents the inner flap from springing back when the inner flap is bent, and the box can be sealed easily and quickly. Become.

When the opening stopper is formed by a bending line formed on the first outer flap and a groove-shaped slit engraved on the first outer flap and connected to both ends of the bending line, when the inner flap is bent inward. Interference with the opening stopper can be avoided.

If the opening stop is in the area from the edge of the first outer flap on the second or eighth ruled line side to the distance corresponding to the length of the first inner flap along the second or eighth ruled line, the opening stop is placed. Can be reliably functioned.

Forming two bend lines and two grooved slits in the first outer flap corresponding to the first and second inner flaps allows the opening stopper to be inward from the first outer flap without moving the box. The bending work can be easily performed.

When the first, third, fifth, and seventh ruled lines are used as scores, and the second, fourth, sixth, and eighth ruled lines are used as creases, the compressive strength of the box can be maximized.

It is a stereoscopic projection view which shows the appearance of one Embodiment which applied the box by this invention to the corrugated cardboard box of 0201 type specified by JIS-Z1507. It is a top view which shows the appearance of the box blank of the box shown in FIG. It is a three-dimensional projection drawing which shows the appearance of the box in the state which the box blank shown in FIG. 2 is pasted and folded. FIG. 3 is a three-dimensional projection drawing showing the appearance of the outer flap of the bottom surface of the box shown in FIG. 3 in a state of being taped. FIG. 3 is a three-dimensional projection drawing showing the appearance of the inner flap of the top surface of the box shown in FIG. 3 in a folded state. FIG. 5 is a cross-sectional view schematically showing the structure of a box along the VI-VI arrow in FIG.

An embodiment in which the box according to the present invention is applied to a 0201 type cardboard box defined by JIS-Z1507 will be described in detail with reference to FIGS. 1 to 6. The present invention is not limited to such an embodiment, and any structure other than the 0201 type can be used as long as at least one of the top surface and the bottom surface is a box composed of a pair of inner flaps and outer flaps. It can be applied to the box.

The appearance of the packed state of the box according to the present embodiment is shown in FIG. 1, the appearance of the box blank is shown in FIG. 2, and the appearance of the box in the state where the box blank is attached to the body and folded is shown in FIG. That is, the box 10 in the present embodiment for accommodating the contents (not shown) has a rectangular bottom surface 11 and a top surface 12, first and second length surfaces 13, 15 and first and second width surfaces. It has a rectangular parallelepiped shape with 14 and 16.

In the first length surface 13, the upper and lower first outer flaps 17A and 17B are connected via a ridge, that is, the upper and lower first ruled lines S1A and S1B. The first width surface 14 is connected to the first length surface 13 via a ridge orthogonal to the first ruled lines S1A and S1B, that is, a second ruled line C2. Further, the first width surface 14 is a ridge in which the upper and lower first inner flaps 18A and 18B adjacent to the upper and lower first outer flaps 17A and 17B are orthogonal to the first ruled lines S1A and S1B and the second ruled line C2, respectively. That is, they are connected via the upper and lower third ruled lines S3A and S3B. The second length surface 15 is connected to the first width surface 14 via a ridge parallel to the second ruled line C2, that is, a fourth ruled line C4. Further, in the second length surface 15, the upper and lower second outer flaps 19A and 19B adjacent to the upper and lower first inner flaps 18A and 18B are upper and lower third ruled lines S3A, S3B and the fourth. It is connected via a ridge orthogonal to the ruled line C4, that is, the upper and lower fifth ruled lines S5A and S5B. The second width surface 16 is connected to the second length surface 15 via a ridge parallel to the fourth ruled line C4, that is, the sixth ruled line C6. Further, the second width surface 16 is a ridge in which the upper and lower second inner flaps 20A and 20B adjacent to the upper and lower second outer flaps 19A and 19B are orthogonal to the fifth ruled line S5A, S5B and the sixth ruled line C6, respectively. That is, they are connected via the upper and lower seventh ruled lines S7A and S7B.

A ridge parallel to the second ruled line C2, that is, a joint margin 21 is connected to the first length surface 13 in the present embodiment via the eighth ruled line C8, and is joined in a state of being overlapped with the second width surface 16. In other words, it is pasted on the body. Therefore, the second width surface 16 is connected to the first length surface 13 via a ridge parallel to the sixth ruled line C6, that is, the eighth ruled line C8, and the upper and lower seventh ruled lines S7A and S7B are the second. It is also orthogonal to the 1 ruled line S1A, S1B and the 8th ruled line C8. It is also possible to connect the joint margin 21 to the second width surface 16 via the eighth ruled line C8 parallel to the sixth ruled line C6, and to join the joint margin 21 in a state of being overlapped with the first length surface 13.

Since the box 10 in the present embodiment is of 0201 type, the top surface 12 is composed of the upper first and second outer flaps 17A and 19A and the upper first and second inner flaps 18A and 20A. Similarly, the bottom surface 11 is composed of the lower first and second outer flaps 17B and 19B and the lower first and second inner flaps 18B and 20B. However, the present invention can be applied even to a box in which only the bottom surface 11 or the top surface 12 is composed of a pair of outer flaps and inner flaps. In the present embodiment, the pair of upper and lower outer flaps 17A, 17B, 19A, and 19B are both butt flaps and are sealed using tapes 22A and 22B, respectively, but the present invention is not limited to this, and stitches or adhesives may be used. It can also be used to seal.

On the upper first outer flap 17A forming a part of the top surface 12, two opening stoppers 23 corresponding to the upper first and second inner flaps 18A and 20A are provided in the longitudinal direction of the first length surface 13 (FIG. 2 Middle, left and right direction) It is formed on both sides. The individual opening stoppers 23 have a bending line 23L formed on the upper first outer flap 17A in parallel with the upper first ruled line S1A, and a groove forming the outline of the opening stopper 23 together with the bending line 23L. It has a shaped slit 23S. The groove-shaped slit 23S is also engraved in the upper first outer flap 17A so as to include a part of the upper first ruled line S1A that separates the upper first outer flap 17A and the first length surface 13. ..

In the present embodiment, the above-mentioned first, third, fifth, and seventh ruled lines S1A, S1B, S3A, S3B, S5A, S5B, S7A, and S7B are scores, respectively, and the second, fourth, sixth, and sixth ruled lines are the scores. The eighth ruled line C2, C4, C6, and C8 are set to be creases, respectively. As a result, the compressive strength of the box 10, that is, the stacking strength can be increased.

Such a box 10 is obtained by assembling the bottom surface 11 and the top surface 12 of the box 10 to which the box blank 10C shown in FIG. 2 is attached. As shown in FIG. 3, the boxes 10 in which the fourth and eighth ruled lines C4 and C8 are folded and folded flat are usually stacked on each other and carried to the place where these boxes 10 are actually assembled and used. Is done. In this case, in the case of an unused box 10 in which the upper third and seventh ruled lines S3A and S7A have never been bent and a large springback is likely to occur when the upper first and second inner flaps 18A and 20A are bent. , The effect of the present invention can be maximized. Of course, instead of the fourth and eighth ruled lines C4 and C8 described above, the second and sixth ruled lines C2 and C6 can be bent to fold the box 10 flat.

From the state shown in FIG. 3, the pair of length surfaces 13, 15 and width surfaces 14, 16 of the box 10 are opened in a rectangular shape, and the lower first and second inner flaps 18B, 20B are opened to the lower third and seventh ruled lines S3B, S7B. Bend 90 degrees inward from. Then, the lower first and second outer flaps 17B and 19B are bent 90 degrees inward from the lower first and fifth ruled lines S1B and S5B, these butt portions are sealed with tape 22B, and the bottom surface 11 of the box 10 is defined. (See Fig. 4). In this state, the contents (not shown) are thrown in from the top surface 12 side of the box 10, and the opening stopper 23 provided on the upper first outer flap 17A is moved inward from the bending line 23L (to the second upper outer flap 19A side). Bend, and in this state, the upper first and second inner flaps 18A and 20A are bent 90 degrees inward from the upper third and seventh ruled lines S3A and S7A. When the upper first and second inner flaps 18A and 20A pass through the opening stopper 23, the operator can release the upper first and second inner flaps 18A and 20A. At this time, the upper first and second inner flaps 18A and 20A try to return to the original state shown in FIG. 4 by springback. However, as shown in FIG. 5 and FIG. 6 showing the cross-sectional structure along the VI-VI arrow view, the opening stopper 23 is caught on the upper surfaces of the upper first and second inner flaps 18A and 20A, and the upper first and second inner flaps 18A and 20A are caught. The inner flaps 18A and 20A are kept in the closed state shown in FIGS. 5 and 6. Therefore, when the upper first and second outer flaps 17A and 19A are bent 90 degrees from the upper first and fifth ruled lines S1A and S5A, the upper first and second inner flaps 18A and 20A do not interfere with each other and the upper first one. And the second outer flaps 17A, 19A can be easily and quickly bent. The packaging of the box 10 is completed by sealing the butt portions of the upper first and second outer flaps 17A and 19A bent in this way with the tape 22A.

In order to properly exert the function of the opening stopper 23 described above, it is necessary to appropriately set the position. That is, when the upper first and second outer flaps 17A and 19A are bent from the upper first and fifth ruled lines S1A and S5A when the box 10 is sealed, the pair of opening stoppers 23 are the first upper and second inner flaps 18A. The position of the opening stopper 23 must be specified so as to overlap with 20A. Specifically, the distance D from the second and eighth ruled lines C2 and C8 to the opening stopper 23 is the ridge forming the boundary between the first length surface 13 and the first and second width surfaces 14 and 16. It is preferable to set the lengths of the upper first and second inner flaps 18A and 20A to less than L.

In the present embodiment, two opening stoppers 23 are provided on the upper first outer flap 17A, but one opening stopper 23 can also be provided on the upper second outer flap 19A. Further, these two opening stoppers 23 can be provided on the upper second outer flap 19A in addition to the upper first outer flap 17A. Further, it is also possible to form the two opening stoppers 23 as described above on at least one of the lower first and second outer flaps 17B and 19B.

If the box 10 has a shape similar to a cube that is not elongated, it is possible to provide only one opening stopper 23 in the center of the outer flap and use it for the pair of inner flaps.

As described above, the present invention should be construed only from the matters described in the claims, and even in the above-described embodiment, the matters described by all the changes and modifications included in the concept of the present invention. Other than that is possible. That is, all the matters in the above-described embodiment are not intended to limit the present invention, and are arbitrarily modified according to the use, purpose, etc., including all configurations not directly related to the present invention. What you get.

10 Box 10C Box Blank 11 Bottom 12 Top Surface 13 First Length Surface 14 First Width Surface 15 Second Length Surface 16 Second Width Surface 17A Upper First Outer Flap 18A Upper First Inner Flap 19A Upper Second Outer flap 20A Upper 2nd inner flap 20B Lower 2nd inner flap 21 Joint margin 23 Opening stop 23L Bending line 23S Groove-shaped slit S1A Upper 1st ruled line S3A Upper 3rd ruled line S5A Upper 5th ruled line S7A Upper 7th ruled line C2 2 Ruled Line C4 4th Ruled Line C6 6th Ruled Line C8 8th Ruled Line D Distance from 2nd and 8th Ruled Lines to Stop Opening L Length of Upper 1st and 2nd Inner Flaps

Claims (8)

A rectangular bottom and top, a rectangular parallelepiped shape having a pair of long side and width surface, a pair of outer flaps the top leading through respective edges to the pair of long side and width surface even without low and A box made up of inner flaps
It is formed on at least one of the pair of outer flaps so as to include a part of a first ridge that separately separates the pair of outer flaps and the pair of length faces, and from the at least one outer flap, the at least one thereof. A box characterized by having an opening stopper that projects toward the pair of inner flaps on which the outer flaps of the above are overlapped and presses against the pair of inner flaps. The opening stopper is engraved on the at least one outer flap so as to include a bending line formed on the at least one outer flap parallel to a part of the first ridge and a part of the first ridge. The box according to claim 1, wherein the box is provided and formed of a groove-shaped slit connected to both ends of the bending line. The box according to claim 1 or 2, wherein the two opening stoppers corresponding to the pair of inner flaps are formed on the at least one outer flap. And a rectangular bottom surface and top and a pair of long side and width surface, by a pair of outer flaps and the inner flaps the top leading through respective edges to the pair of long side and width surface even without least It is a box blank of a box that has a rectangular parallelepiped shape.
The first length surface to which the first outer flap is connected via the first ruled line,
A third ruled line connected to the first length surface via a second ruled line orthogonal to the first ruled line, and the first inner flap adjacent to the first outer flap forms a straight line with the first ruled line. With the first width surface connected through
The second outer flap adjacent to the first inner flap is connected to the first width surface via the fourth ruled line parallel to the second ruled line, and the second outer flap is aligned with the third ruled line via the fifth ruled line. The second length surface that connects,
A seventh ruled line connected to the second length surface via a sixth ruled line parallel to the fourth ruled line, and the second inner flap adjacent to the second outer flap forms a straight line with the fifth ruled line. The second width surface connected through,
The first length surface and the second width surface are connected to either one of the first length surface and the second width surface via the second ruled line or the eighth ruled line parallel to the sixth ruled line. A joint margin to be joined in a state of being overlapped with one of the width surfaces,
A folding line formed on the first outer flap in parallel with the first ruled line and close to the first ruled line.
Are engraved on the first outer flap to contain a portion of the first ruled lines, the slit groove-shaped defining a contour of the stop opening with the fold line their respective leads in the opposite ends of the fold line A box blank characterized by having. The opening stopper is a region from the edge of the first outer flap on the second or eighth ruled line side to a distance corresponding to the length of the first inner flap along the second or eighth ruled line. The box blank according to claim 4, wherein the box blank is provided in 1. Claim 4 or claim 5, characterized in that in correspondence with said first and second inside flaps and two of the bending lines and two of said groove-shaped slits are formed in the first outer flap The box blank described in. Claims 4 to 6, wherein the first, third, fifth, and seventh ruled lines are scores, respectively, and the second, fourth, sixth, and eighth ruled lines are creases, respectively. The box blank according to any one of the above. A box characterized in that the box blank according to any one of claims 4 to 7 is attached to the body, and the fourth and eighth ruled lines are bent and folded flat.

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