JP2009023672A - Corrugated fiberboard box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a corrugated fiberboard box capable of forming a handle part enough durable for use if necessary while it has a simple structure and can be continuously manufactured at a low cost by combining a general corrugator and a flexo-folder gluer. <P>SOLUTION: The corrugated fiberboard box has an inside cut-up part 10 which reaches the uncut position 11 at the middle in the length direction of the inner flap continuous to the end wall from the middle position in the height direction of the end wall 3 through the upper edge of the end wall 3, and forms a handle part T by cutting up this inside cut-up part 10 outside and overlapping a part having a hand-hooking hole at its tip part on the upper side of the upper opening/closing face U. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a corrugated cardboard box, and more particularly to a corrugated cardboard box having a hand-carrying part (gripping part) that is a part of a corrugated cardboard box body.

Conventionally, corrugated cardboard boxes have been used as containers for collectively storing a plurality of products from transportation to product display, or as packaging containers for selling heavy goods such as home appliances and potted plants. In the former case, A-type cardboard boxes, which can be manufactured continuously and are low in cost, are widely used, whereas in the latter case, consumers can easily carry the cardboard boxes containing the contents. A cardboard box having a hand-held portion is also widely used (see, for example, Patent Documents 1 and 2).
Japanese Utility Model Publication No. 06-042640 JP 07-309327 A

Even in the case of cardboard boxes that are mainly used up to the display of goods, in the case of so-called box sales, the box is often taken home by consumers, so the handbags can be used to support this type of sales. It is desirable to have
However, the conventional corrugated cardboard box having a hand-held portion has a complicated shape in the unfolded state, and requires die-cutting and assembling every one piece. Therefore, it is a continuous combination of a general corrugator and flexo folder gluer. There was a problem that the production was impossible and the production cost increased.
In addition, cardboard boxes that are mainly used up to the display of products are not necessarily sold in boxes, so it is not preferable to have a shape that obstructs the opening work during transportation or display of products. .
Therefore, the main problem of the present invention is a simple structure, and it is possible to continuously manufacture at a low cost by a combination of a general corrugator and a flexo folder gluer. The object is to provide a cardboard box which can be formed accordingly.

The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
A cylindrical non-opening / closing surface having a pair of opposed end surfaces;
An upper opening / closing surface having one flap extended from the upper edge of any one of the pair of opposed end surfaces and the other flap extended from the upper edge of the other end surface;
In a cardboard box having a lower opening and closing surface,
The first cut-and-raised part that continues from the middle position in the height direction of the one end face to the uncut position in the middle in the length direction of the one flap through the upper edge of the end face, and the height of the other end face Second cut and raised portions that continue from the middle position in the direction through the upper edge of the end surface to the middle left position in the length direction of the other flap are cut and raised to the outside of the box using the left position as a fold. Is possible,
The first cut-and-raised portion and the second cut-and-raised portion are cut and raised to form a hand-held portion that stands on the upper opening and closing surface.
A cardboard box characterized by that.

(Function and effect)
In order to have a simple structure that can be continuously manufactured at low cost by a combination of a general corrugator and flexo folder gluer, and to be able to form a handbag as needed, either side of the box The form which forms a hand-held part by raising a part of is preferable. With such a simple structure, some processing needs to be added, but continuous production is possible by combining a general corrugator and flexo folder gluer. However, there is a risk that the hand-held portion cut and raised by the weight of the contents may be torn off. Therefore, a structure that can withstand heavy objects is desired. The present invention has been made based on such findings.
In the present invention, since the uncut portions of the first and second cut-up portions are located in the middle in the length direction of the flap constituting the upper opening and closing surface, they are cut and raised as compared with the case of being located on the end surface. The angle formed by the first and second cut-and-raised portions and the surface having uncut portions can be made sufficiently large, and the component force contributing to tearing can be kept small. Therefore, the hand-held part of the cardboard box of the present invention can be formed as needed, but has excellent weight resistance.

<Invention of Claim 2>
A rectangular tube-shaped non-opening / closing surface comprising a pair of left and right end walls and a pair of front and rear side walls;
It consists of a pair of left and right inner flaps extending from the upper edge of each end wall and a pair of front and rear outer flaps extending from the upper edge of each side wall, with the outer flaps stacked on the outside of the inner flap An upper opening and closing surface configured to be sealed;
In a cardboard box having a lower opening and closing surface,
A left inner cut-and-raised part that continues from an intermediate position in the height direction of the left end wall to an uncut position in the middle in the length direction of the left inner flap through the upper edge of the end wall, and the outer flap A left outer cut and raised portion that overlaps the left inner cut and raised portion and has a left uncut position in the vicinity of the left side of the left inner cut and raised portion. A cut-and-raised part, and a right inner cut-and-raised part that continues from the intermediate position in the height direction of the right end wall to the uncut position in the longitudinal direction of the right inner flap through the upper edge of the end wall; And a right outer cut-and-raised part that overlaps the right inner cut-and-raised part of the outer flap and has a left uncut position in the vicinity of the left uncut position of the right inner cut and raised part The second cut-up part consisting of Uncut position is provided to be raised off the box outside the fold, and
A handle hole is provided in each of the inner cut and raised portion in the left end wall and the inner cut and raised portion in the right end wall.
The first cut-and-raised portion and the second cut-and-raised portion are cut and raised, and a hand-held portion that stands on the upper opening / closing surface is formed by the inner cut-and-raised portion.
A cardboard box characterized by that.

(Function and effect)
The invention described in this section is intended for a general hexahedral cardboard box, and has the same effects as the invention described in claim 1. In the invention described in this section, the cut-and-raised portion (the cut-and-raised portion extending from the non-opening / closing surface to the upper opening / closing surface) that forms the hand-holding portion includes the inner flap with respect to the first and second cut-and-raised portions. A portion that overlaps with the inner cut-and-raised portion of the outer flap is formed by the outer cut-and-raised portion so that it is formed by the inner cut-and-raised portion and does not interfere with the cut and raised at the upper opening / closing surface. For this reason, when the first and second cut-up portions are not cut up, the upper open / close surface and the non-open / close surface have the same shape as the conventional one, and the left end wall and the right end wall are handled. Since the hole is provided, it is possible to carry in the transportation work.
On the other hand, when the first and second cut-and-raised portions are cut and raised, the hand-holding portions that stand on the upper opening and closing surface are respectively formed by the inner cut-and-raised portions. If the handbags are stacked so that the handle holes are aligned, the hands can be passed through both the handle holes and held with one hand. Characteristically, since the uncut portion of the outer cut-up portion overlaps the inside of the uncut position of the inner cut-up portion forming the hand-held portion, the root of the inner cut-up portion depends on the root of the outer cut-up portion. It is supported, and it becomes difficult for the tear to progress from both ends of the uncut portion of the inner cut and raised portion. In other words, in order for the root of the hand-held portion to be torn off, it is necessary to have a force to break in a state where two inner flaps and two outer flaps are stacked. Therefore, according to the invention described in this section, the weight resistance is further improved.
In the present invention, front / rear / up / down / left / right means a direction in which one side wall from which one outer flap extends in the sealed state is front (front), and the description of the invention. It is defined for the sake of convenience, and does not mean the direction when used as a product.

<Invention of Claim 3>
Of the handle holes provided in the inner cut-and-raised portion of the left end wall and the handle holes provided in the inner cut-and-raised portion of the right end wall, one of the handle holes has a lower hole forming portion. The edge is formed by being cut and raised as an uncut position, and the cut and raised portion is configured to be inserted into the other handle hole.
The cardboard box according to claim 2.

(Function and effect)
When configured as described in this section, the handle is overlapped so that the handle holes are aligned, and the cut-and-raised part of one handle hole is inserted into the other handle hole and below the inserted raised part. By gripping with the hand to the side, it is preferable because both hand-holding portions can be gripped integrally without placing the end of the cardboard on the hand.

<Invention of Claim 4>
The corrugated cardboard box according to claim 2 or 3, wherein perforations are formed along the entire periphery of the first cut-up portion and the second cut-up portion except for the uncut position.

(Function and effect)
The peripheral edges of the first and second cut-and-raised portions may be cut in advance so that they can be cut and raised, but the first and second cut-and-raised portions protrude when they are not used in a hand-held form, There is a risk of complicated operations such as transportation. Therefore, it is a preferable embodiment to be configured to be ruptured by perforation as described in this section. In this case, there is no possibility that the first and second cut-and-raised portions will protrude when not used in the hand-held form, and it can be handled in the same manner as a normal box in transportation or the like.

  As described above, according to the present invention, it is possible to provide a cardboard box that is easy to process and excellent in productivity.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
In addition, the dotted line and dashed-dotted line in the figure have shown the ruled line for bending.
1 to 8 show an embodiment of a cardboard box 1 according to the present invention. As shown in FIG. 4, the cardboard box 1 belongs to an A-type cardboard box that is in a rectangular parallelepiped shape in a sealed state, and is a rectangular tube composed of a pair of left and right end walls 3 and a pair of front and rear side walls 2. Each non-opening / closing surface, a pair of left and right inner flaps 5 extending from the upper edge of each end wall 3, and a pair of front and rear outer flaps 4 extending from the upper edge of each side wall 2. An upper opening / closing surface U configured to be sealed in a state where both outer flaps 4 are overlapped on the outer side of 5, a pair of left and right inner flaps 7 extending from the lower edge of each end wall 3, and each side wall A lower opening / closing surface B composed of a pair of front and rear outer flaps 6 extending from the lower edges of the two inner seals 7 and configured to be sealed in a state where the outer flaps 6 are overlapped on the outer sides of the inner flaps 7. Have.
Reference numeral 8 denotes an adhesive margin piece for connecting the side portion of the side wall 2 and the side portion of the end wall 3. By connecting the one side wall 2 and the end wall 3 adjacent to the side wall 2 by the adhesive margin piece 8, a square cylindrical non-opening / closing surface is formed.

The pair of outer flaps 4 and 6 of each open / close surface U, B form a rectangle substantially equal to the size and shape of the open / close surface divided in two in the front-rear direction center line, and the extension length from the side wall 2 (front and back) The length L2 in the direction is substantially equal to half of the length L1 in the front-rear direction of the opening / closing surface (or the length in the front-rear direction of the end wall), and is configured such that the entire leading edges of each other abut in the sealed state. .
Each of the inner flaps 5 and 7 has a rectangular shape and has the same length as the outer flaps 4 and 6 with a length L3 in the front-rear direction substantially equal to the length L1 in the front-rear direction of the opening / closing surface (or the length in the front-rear direction of the end wall). It extends from the end wall 3 by an extension length (length in the left-right direction) L2. In the case of the illustrated embodiment, the pair of inner flaps 5 and 7 on the upper and lower open / close surfaces U and B are separated from each other in the left-right direction even in the sealed state.
Moreover, the dotted line part in FIG. 1 has shown the mountain fold line, and the dashed-dotted line part has shown the valley fold line, respectively. It is preferable to process a ruled line for facilitating the folding at these folding line portions.

In the present embodiment, based on the above configuration, the length of the inner flaps 5 and 5 that form the upper opening / closing surface U from the intermediate positions in the height direction of the end walls 3 and 3 with the end walls 3 and 3 as an extension base. Inner cut-and-raised portions 10 and 20 having a predetermined width and continuous in a strip shape are provided up to the middle uncut positions 11 and 21 in the vertical direction. If the inner cut-and-raised parts 10 and 20 can be cut and raised at the time of use, the peripheral edge may be cut in advance throughout the part except the uncut position, but it is better to be separable by the perforation. It is preferable (the same applies to the other cuts). It is preferable to process a ruled line for easy folding at the uncut positions 11 and 21 (the same applies to other uncut areas).
The positions of the inner cut and raised portions 10 and 20 can be determined as appropriate, but the center in the front-rear direction is preferably located at the center in the front-rear direction of the end wall 3. The inner cut-and-raised portions 10 and 20 are preferably symmetric with respect to the center line in the front-rear direction, but may be asymmetric. The left and right inner cut-and-raised portions 10 and 20 are preferably symmetrical with respect to the center in the left-right direction, but may be asymmetric.

  Although the width (length in the front-rear direction) of the inner cut-and-raised portions 10 and 20 can be determined as appropriate, the width W1 at the uncut position affects the strength of the hand-carrying portion, and therefore the length L1 in the front-rear direction of the end wall 3. It is preferable to secure about 1/10 to 1/3, particularly about 1/6 to 1/2. Of the inner cut and raised portions 10 and 20, the length L6 of the portion formed by the end wall 3 (vertical length in the non-cut and raised state) is 1/10 of the vertical length L11 of the end wall 3. It is preferably ˜4 / 5, particularly 1/3 to 4/5. By securing the length of this portion long, the angle θ of the hand-carrying portion T, which will be described later, can be increased, and the exposed area of the contents increases, so the contents can be displayed even when the boxes are displayed at the time of box sales. The display effect is the same as when objects are displayed. The length L8 of the portion formed by the inner flap 5 (the length in the left-right direction in a non-raised state) is 1/10 to 4/5, particularly 1/3 to 2 of the extension length L2 of the inner flap 5. / 3 is preferable. If this portion is secured excessively long, the roots of the inner cut-and-raised portions 10 and 20 are too far away from the end walls, and are easily bent.

Of the inner cut-and-raised portions 10 and 20, the portions positioned on the left and right end walls 3 are provided with the handle holes 14 and 24, respectively. The positions of the handle holes 14 and 24 can be determined as appropriate, but the center in the front-rear direction of the handle holes 14 and 24 is preferably located at the center in the front-rear direction of the inner cut and raised portions 10 and 20. , 24 are located above the center of the end wall 3 in the vertical direction, in particular, about 1/5 to 1/2 of the vertical length L12 of the end wall 3 from the upper edge of the end wall 3. It is preferable. Further, as shown in the figure, when the left and right inner raised portions 10 and 20 are symmetric, the left and right handle holes 14 and 24 are aligned at positions where the lower edges are symmetric. Is preferred.
The size of the handle holes 14 and 24 is only required to be large enough for a human hand to enter, and preferably has a width of 8 cm or more in the front-rear direction and a width of 4 cm or more in the vertical direction. The shape of the handle holes 14 and 24 can be determined as appropriate, such as a generally used long hole shape. A shape that is symmetric with respect to the center line in the front-rear direction is preferable, but may be asymmetrical.

  In particular, as shown in the figure, one (right in the figure) of the left and right hand holes 14, 24 is formed by the hole forming portion 25 being cut and raised with the lower edge left as a position 27. The other (left in the illustrated embodiment) handle hole 14 is preferably a punched hole, and the cut and raised portion 25 in one handle hole 24 is preferably inserted into the other handle hole 14. In order to facilitate this insertion, it is preferable that the width in the front-rear direction of the other handle hole 14 is equal to or greater than the width in the front-rear direction of the cut-and-raised portion 25 in at least one handle hole 24. Similarly to the handle hole 24, the handle hole 14 can also be formed by cutting and raising the lower edge.

Moreover, it is a preferable form to provide the ruled lines 13 and 23 that facilitate the folding along the front-rear direction at positions beyond the lower edges of the handle holes 14 and 24 in the inner cut and raised portions 10 and 20. The positions of the ruled lines 13 and 23 can be determined as appropriate, but the ruled lines 13 and 23 and the inner cut-and-raised portions 10 and 20 in the unfolded state are left uncut so that the angle θ of the handbag described later is 45 degrees or more. It is preferable to define a separation distance L4 from the positions 11 and 21. In the illustrated embodiment, ruled lines 13 and 23 are provided along the upper edge of one handle hole 14.
On the other hand, portions of the outer flaps 4 and 4 that overlap the inner cut and raised portions 10 and 20 (both corners on the front end side of the outer flaps 4 and 4) are rectangular outer cut and raised portions 4f. The outer cut-and-raised part 4f is cut in the vicinity of the left and right center side of the left-cut position of the inner cut-and-raised parts 10 and 20 located on the inner side (right side for the left outer flap and left side for the right outer flap). It has a left position. The shape and size of the outer cut-and-raised portion 4 f can be appropriately determined according to the overlap between the outer flap 4 and the inner flap 5.

  As shown in FIG. 5, the corrugated cardboard box 1 thus configured has the left and right inner cut-and-raised portions 10 and 20 cut out from the sealed state together with the outer cut-and-raised portion 4f that overlaps the outer side. As shown in FIGS. 6 and 7, by standing up above the upper opening / closing surface U, overlapping the tips, and inserting the cut-and-raised portion 25 in one handle hole 24 into the other handle hole 14. An integral hand-held portion T is formed. Even in this state, the upper opening / closing surface U is sealed (for example, connected to each other by a tape or a staple between the front end portions of the outer flap 4 or the outer flap 4 at a portion other than the inner cut and raised portions 10 and 20 and the outer cut and raised portion 4f. Since the cardboard box 1 is lifted by gripping the hand-held portion T, the upper opening / closing surface U is not opened.

When forming the hand-held portion T, the cut-and-raised portion 25 in one of the handle holes 24 is bent so as to cover the upper surface of the handle hole 24 as shown in FIGS. Can be gripped in one piece, and the cross section of the corrugated cardboard does not hit the hand, and even if a heavy object is lifted, the hand is unlikely to hurt. Of course, you may utilize as a separate hand-carrying part, without matching both inner side cutting and raising parts.
Further, as shown in FIG. 7 and FIG. 8, the uncut position 4x of the outer cut-and-raised portion 4f overlaps the inside of the cut-off positions 11 and 21 of the inner cut-and-raised portions 10 and 20 forming the hand-held portion T. The roots of the inner cut-and-raised portions 10 and 20 are supported by the root of the outer cut-and-raised portion 4f, so that the breakage does not easily progress from both ends of the uncut portions 11 and 21 of the inner cut-and-raised portions 10 and 20. In other words, in order for the root of the hand-held portion T to be torn off, it is necessary to have a force to tear the inner flap 5 and the outer flap 4 in a stacked state. Therefore, by having such a structure, the weight resistance is further improved.

  On the other hand, when ruled lines 13 and 23 for facilitating bending along the front-rear direction are provided at positions above the lower edges of the handle holes 14 and 24 in the inner cut and raised portions 10 and 20, as shown in FIG. In the state in which the integral hand-held portion T is formed, the lower part of the inner cut-and-raised parts 10 and 20 below the ruled lines 13 and 23 and the upper opening / closing surface U form a triangle when viewed from the front-rear direction. The portions having the handle holes 14 and 24 above the ruled lines 13 and 23 overlap with each other even with a weak force, and are very easy to grip. Further, in this case, the positions of the ruled lines 13 and 23 so that the angle θ formed by the parts below the ruled lines 13 and 23 of the inner cut and raised parts 10 and 20 and the upper opening / closing surface U is 45 ° or more. And, by determining the dimensions of each part (specifically, the distance L9 from the base edge of the cuts 10 and 20 to the fold lines 13 and 23 is the distance between the uncut portions 11 and 21 of the inner cut and raised part) (It is set to 1.42 times or more of the length L10 that is ½ of the lateral separation distance), and the component force that contributes to breakage among the forces applied to the roots of the inner cut-and-raised portions 10 and 20 is kept small. Can do. It is more preferable that the angle θ is 50 ° to 75 °.

<Other embodiments>
(A) In the above embodiment, an example of a rectangular parallelepiped corrugated cardboard box is shown, but the present invention is not limited to this, and may be a cube or other three-dimensional shape.
(B) In the present invention, the outer cut-and-raised portion 4f may be cut in advance to form a notch.
(C) In the present invention, the lower opening / closing surface B can be appropriately configured, and can also be a so-called one-touch type structure.
(D) In the above example, the cut-and-raised portions 10 and 20 forming the hand-held portion T are formed from the end wall 3 to the inner flap 5, but are formed from the side wall 2 to the outer flap 4, and the inner flap 5 has It can also be set as the form which does not form a cut-and-raised part.

  The present invention can be applied to a cardboard box.

It is an expanded view of embodiment of this invention. It is an enlarged view of the inner flap and end wall of embodiment of this invention. It is an enlarged view of the inner flap and end wall of embodiment of this invention. It is a perspective view which shows the sealing state of embodiment of this invention. It is a perspective view which shows the assembling work middle of the hand-held part T. FIG. It is a perspective view which shows the assembling work middle of the hand-held part T. FIG. It is a perspective view which shows the assembly state of the hand-held part T. FIG. It is a front view which shows the assembly state of the hand-held part T. FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Corrugated cardboard box, 2 ... Side wall, 3 ... End wall, 4 ... Outer flap, 4f ... Flap, 5 ... Inner flap, 6 ... Outer flap, 7 ... Inner flap, 8 ... Paste piece, 10 ... Inner cut and raising Portions, 11, 21 ... Uncut position, 13, 23 ... Bending ruled line, 14, 24 ... Hand hole, 20 ... Outer cut-up portion, 25 ... Cut-up portion, 27 ... Uncut position.

Claims (4)

A cylindrical non-opening / closing surface having a pair of opposed end surfaces;
An upper opening / closing surface having one flap extended from the upper edge of any one of the pair of opposed end surfaces and the other flap extended from the upper edge of the other end surface;
In a cardboard box having a lower opening and closing surface,
The first cut-and-raised part that continues from the middle position in the height direction of the one end face to the uncut position in the middle in the length direction of the one flap through the upper edge of the end face, and the height of the other end face Second cut and raised portions that continue from the middle position in the direction through the upper edge of the end surface to the middle left position in the length direction of the other flap are cut and raised to the outside of the box using the left position as a fold. Is possible,
The first cut-and-raised portion and the second cut-and-raised portion are cut and raised to form a hand-held portion that stands on the upper opening and closing surface.
A cardboard box characterized by that. A rectangular tube-shaped non-opening / closing surface comprising a pair of left and right end walls and a pair of front and rear side walls;
It consists of a pair of left and right inner flaps extending from the upper edge of each end wall and a pair of front and rear outer flaps extending from the upper edge of each side wall, with the outer flaps stacked on the outside of the inner flap An upper opening and closing surface configured to be sealed;
In a cardboard box having a lower opening and closing surface,
A left inner cut-and-raised part that continues from an intermediate position in the height direction of the left end wall to an uncut position in the middle in the length direction of the left inner flap through the upper edge of the end wall, and the outer flap A left outer cut and raised portion that overlaps the left inner cut and raised portion and has a left uncut position in the vicinity of the left side of the left inner cut and raised portion. A cut-and-raised part, and a right inner cut-and-raised part that continues from the intermediate position in the height direction of the right end wall to the uncut position in the longitudinal direction of the right inner flap through the upper edge of the end wall; And a right outer cut-and-raised part that overlaps the right inner cut-and-raised part of the outer flap and has a left uncut position in the vicinity of the left uncut position of the right inner cut and raised part The second cut-up part consisting of Uncut position is provided to be raised off the box outside the fold, and
A handle hole is provided in each of the inner cut and raised portion in the left end wall and the inner cut and raised portion in the right end wall.
The first cut-and-raised portion and the second cut-and-raised portion are cut and raised, and a hand-held portion that stands on the upper opening / closing surface is formed by the inner cut-and-raised portion.
A cardboard box characterized by that. Of the handle holes provided in the inner cut-and-raised portion of the left end wall and the handle holes provided in the inner cut-and-raised portion of the right end wall, one of the handle holes has a lower hole forming portion. The edge is formed by being cut and raised as an uncut position, and the cut and raised portion is configured to be inserted into the other handle hole.
The cardboard box according to claim 2.   The corrugated cardboard box according to claim 2 or 3, wherein perforations are formed along the entire periphery of the first cut-up portion and the second cut-up portion except for the uncut position.

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