JP2017088210A - Cardboard box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cardboard box for allowing all the commodities accommodated therein to be more easily extracted.SOLUTION: A cardboard box 1 comprises four side walls 2a, 3a1, 4a and 5a, and has an opening formed by the upper end edge of the four side walls. The side walls have lid pieces 2b, 3b, 4b and 5b continuing from the upper end edge. The opposed ones of the side walls are formed with a pair of break lines joining the two ends of the upper end edge and the lower end edge. If cut along the break line L1, it is possible to form a continuous opening joining the opposed side walls and the upper face of the box, so that the accommodated article accommodated inside can be easily extracted through the opening of the side walls. Moreover, the opening can be formed to the vicinity of the bottom face of the box so that even the accommodated article positioned on the bottom can be easily extracted. Therefore, even the accommodated article accommodated neatly not to form a clearance in the box can be easily extracted.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cardboard box.

  Boxes made of cardboard sheets (so-called cardboard boxes) are widely used in various fields as packaging boxes for transporting products because they are lightweight, easy to handle, and cushioning. . Such products are generally manufactured in factories, etc., and then mechanically stored in a corrugated cardboard box without gaps, and then shipped with the lid tightly sealed with an adhesive or the like. . On the other hand, a product is normally taken out from the cardboard box by a human hand. At this time, since the lid of the cardboard box is tightly sealed so as not to be opened at the time of distribution, there is a problem that it takes time and effort to open the lid.

  In view of this, various cardboard boxes have been proposed that have a structure that facilitates opening the lid of the cardboard box.

For example, a corrugated cardboard box having a structure in which a top cover is opened by forming a perforation along the circumferential direction in the upper part of the side wall or by providing a cut tape (for example, Patent Document 1), provided on the side A corrugated cardboard box having a structure in which a side lid is opened by forming a tear band along the circumferential direction of the back side and the side wall of the lid has been proposed (for example, Patent Documents 2 and 3).
In addition, cardboard boxes in which perforations are formed on the top wall so as to be continuous with a lid provided on the side have been proposed (for example, Patent Documents 4 and 5). In these patent documents, it is described that the lid provided on the side of the cardboard box continuous to the upper surface can be easily opened by peeling off from the perforation formed on the upper surface.

JP 2010-23885 A JP-A-9-207934 JP 2003-327239 A JP-A-8-217061 JP 2009-214904 A

  However, the conventional corrugated cardboard box as described above has a structure that makes it easy to open the lid of the box, and does not have a structure that makes it easy to take out the product stored inside.

  In other words, in the prior art, various structures have been proposed for the method of opening the lid of the cardboard box, but there is almost no consideration for workability when taking out the goods stored in the cardboard box, especially No consideration is given to the products housed on the inner bottom side of the cardboard box.

  For this reason, even when a conventional cardboard box is used, products stored on the bottom side of the box away from the opening are still difficult to take out. The reality is that after removal, the cardboard box must be disassembled or the product must be forcibly removed from the box.

  If there is a cardboard box that can easily take out the product located at the bottom side of the cardboard box when the lid of the cardboard box is opened, it is desirable because it can be smoothly taken out to the last stored product.

  In view of the above circumstances, an object of the present invention is to provide a cardboard box in which it is possible to more easily take out all commodities accommodated therein.

A corrugated cardboard box according to a first aspect of the present invention is a rectangular corrugated cardboard box having four side walls and having an opening formed by the upper end edges of the four side walls. A pair of break lines that connect both ends of the upper edge and the lower edge are formed on the opposite sidewalls of the sidewalls.
A cardboard box according to a second invention is characterized in that, in the first invention, the pair of break lines are formed in a substantially V shape.
The corrugated cardboard box according to the third invention is characterized in that, in the first invention or the second invention, a connecting break line is formed between the tips of the pair of break lines.
In the cardboard box of the fourth invention, in the first invention, the second invention, or the third invention, a gap is formed between the connection break line and a lower end edge of the side wall on which the pair of break lines are formed. It is characterized by.
A corrugated cardboard box according to a fifth aspect of the present invention is the cardboard box according to the first, second, third or fourth aspect, wherein the side wall where the pair of break lines is formed is provided with a lower cover piece continuous from the lower end edge. The lower lid piece is characterized in that fibers are formed along the vertical direction of the side wall provided with the lower lid piece.
A cardboard box according to a sixth aspect of the present invention is the corrugated cardboard box according to the first aspect, the second aspect, the third aspect, the fourth aspect or the fifth aspect, wherein the side wall is connected to the side edge of the side wall where the pair of break lines are formed. Is provided with a lower lid piece continuous from the lower edge of the side wall, and the ends of the pair of break lines are formed so as to be located inward of the upper edge of the lower lid piece. It is characterized by.

According to 1st invention, if it cuts along a broken line, the continuous opening which connects the opposing side wall and the upper surface of a box can be formed. That is, since the upper surface is formed so as to be positioned between the base ends of the pair of break lines, the upper surface and the side wall can be easily cut by simply pulling the outer surface downward while holding the upper surface. For this reason, the to-be-contained thing accommodated in the inside can be taken out easily through opening of a side wall. Moreover, since the opening can be formed up to the vicinity of the bottom surface of the box, it is easy to take out an object to be accommodated located toward the bottom of the box. Furthermore, when removing the object to be stored, there is no need to put a finger between the object to be stored and the side wall. Therefore, even an object to be stored that is tightly accommodated so that there is no gap in the box can be easily taken out.
According to the second aspect of the present invention, if it is cut along the breaking line, a substantially triangular corner can be formed on both sides of the opening of the side wall. Then, if a portion having such a corner portion is bent downward with a line connecting the leading ends located on the inner side of the opposite one corner portion of the opposite side wall as a fulcrum, this portion is used as a box support. Can function. Then, since the box can be inclined with respect to the placement surface, it can be installed in a state in which it is easy to take out the contained object even when the box is installed at a low position. In addition, since a part of the object to be stored can be separated from the placement surface and not in contact with the inner surface of the box, the object can be taken out more easily.
According to the third aspect of the present invention, a substantially inverted trapezoidal opening can be formed in the opposite side wall by cutting along the breaking line. Then, spaced apart substantially triangular corner portions can be formed on both sides of the opening. For this reason, if it is made to function downward as a support for the box by bending it downward as a fulcrum line connecting the tips located on the inner sides of the opposing corners of the opposing side walls, the distance of the inclined surface of the box It can be longer than the height of the support base. Then, the box can be stabilized even in the inclined state. And if the distance of a connection breaking line is adjusted, the inclination-angle of a box can be adjusted so that it may become an appropriate angle.
According to 4th invention, if it cuts along a fracture | rupture line, a side wall bottom part can remain between the lower end of opening of a side wall, and the base of a side wall. For this reason, it can suppress that a to-be-contained object moves by this side wall bottom part. Then, even after cutting a side wall etc. along a fracture line, it can install in the state which hold | maintained the internal to-be-contained object clearly in the box.
According to the fifth aspect of the invention, the fiber direction of the lid piece provided at the lower edge of the side wall is substantially parallel to the axial direction when the portion having one opposing corner portion of the opposing side wall is bent downward. Can be formed. For this reason, according to the 6th invention, the one corner part formed in the both sides of the opening of a side wall can be cut off along a broken line. When the portion that has it is bent downward, it is possible to prevent the lid piece on the bottom side of the box from interfering. For this reason, the part which forms this corner part can be reliably bent toward the downward direction.

It is a schematic explanatory drawing of the cardboard box 1 of this embodiment. BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic explanatory drawing of the cardboard box 1 of this embodiment, (A) is a schematic explanatory drawing of the state which closed the upper cover pieces 2b, 3b, 4b, 5b, (B) is broken line L1, L2. It is a schematic explanatory drawing at the time of cutting out the side walls 2a3, 3a3 surrounded by the lid pieces 2b, 3b and the break lines L1, L2 along. It is a schematic explanatory drawing of the cutting operation | work along the breaking lines L1 and L2 formed in the side walls 2a and 3a of the cardboard box 1 of this embodiment. It is a schematic explanatory drawing of the state in which the corrugated cardboard box 1 of this embodiment is inclined by the support base ST having the corner portion 2a1 of the side wall 2a, and (B) and (C) are objects to be accommodated inside. It is a schematic explanatory drawing of the taking-out operation | work of the things M1 and M2. It is a schematic explanatory drawing of the sheet | seat S which expand | deployed the cardboard box 1 of this embodiment.

  The corrugated cardboard box of the present invention is a rectangular cardboard box having an opening on the upper surface, and is characterized in that an object to be accommodated inside can be easily taken out after the lid piece on the upper surface is opened.

  There are no particular restrictions on the size, shape, etc. of the object to be accommodated in the cardboard box of the present invention as long as it can be accommodated in the cardboard box of the present invention. For example, cylindrical cans, box-shaped containers, bottles, bags and other foods, pharmaceuticals, daily necessaries such as detergents, stationery, as well as those stored in small boxes, PPC paper books, etc. Can be mentioned. In particular, a box having a corner shape such as a small box or a book of PPC paper can be efficiently accommodated in the cardboard box of the present invention.

  The cardboard sheet used as the material for forming the cardboard box of the present invention can be any cardboard sheet as long as it is a general cardboard sheet. For example, a cardboard sheet having a single structure or a multiple structure such as double or triple can be used. Moreover, the material is not particularly limited, and a plastic material can be used in addition to a paper material.

  As shown in FIGS. 1 and 2, the cardboard box 1 of the present embodiment (hereinafter simply referred to as the present cardboard box 1) has four side walls 2a, 3a, 4a, 5a, and the side walls 2a, 3a, 4a. 5a is a box having a substantially rectangular cross section having an opening at the upper edge of 5a.

  A continuous lid piece 2b, 3b, 4b, 5b is provided at the upper edge of each side wall 2a, 3a, 4a, 5a, and the side wall 2a, 3a, 4a is provided by this lid piece 2b, 3b, 4b, 5b. The opening formed at the upper edge of 5a can be closed. That is, the upper surface of the cardboard box 1 is formed by the lid pieces 2b, 3b, 4b, and 5b. Then, if the lid pieces 2b, 3b, 4b, 5b forming the upper surface are released, the object M can be accommodated in the cardboard box 1, or conversely, the object M accommodated inside can be taken out. It can be done. A pair of break lines L1 and L1 that are characteristic of the cardboard box of the present invention are formed on the opposite side walls 2a and 3a (or side walls 4a and 5a) of the cardboard box 1.

In addition, if the bottom face of this cardboard box 1 is a structure which can hold the to-be-contained thing M accommodated in the inside, it will not be specifically limited. For example, it may be formed with a single lid that covers the lower edge of each side wall 2a, 3a, 4a, 5a, or as shown in FIG. 2 (B), the lower edge of each side wall 2a, 3a, 4a, 5a. May be formed by continuous lid pieces 2c, 3c, 4c, and 5c.
In the following, the bottom surface of the cardboard box 1 is formed by lid pieces 2c, 3c, 4c, and 5c continuous from the lower end edges of the side walls 2a, 3a, 4a, and 5a. A case where L1 is formed on the opposite side walls 2a and 3a will be described as a representative.

As shown in FIG. 1 and FIG. 2 (A), a pair of break lines L1 and L1 are formed on opposing side walls 2a and 3a of the corrugated cardboard box 1 to connect both ends of the upper edge and the lower edge. Specifically, when the length of the upper end edge of the side walls 2a and 3a and the length of the lower end edge of the lid pieces 2b and 3b provided on the upper end edge of the side walls 2a and 3a are the same length, a pair of break lines L1 , L1 is based on the point where the side edges of the side walls 2a, 3a and the side edges of the lid pieces 2b, 3b provided at the upper end edges of the side walls 2a, 3a are connected to each other from the base end to the side walls 2a, 3a. It is formed so as to be continuous toward the lower end edge.
In other words, the lid pieces 2b and 3b are provided between the base ends of the pair of break lines L1 and L1.

  As shown in FIG. 1, the pair of break lines L1 and L1 formed so as to be continuous toward the lower end edge are formed such that the tips thereof are connected by the connection break line L2. The length of the connection break line L2 is not particularly limited as long as the ends of the pair of break lines L1 and L1 can be connected. For example, when the length of the connecting break line L2 is short, the pair of break lines L1 and L1 can be formed in a substantially V shape on the side walls 2a and 3a. On the other hand, if this connection break line L2 is made slightly longer, a pair of break lines L1, L1 can be formed in an inverted trapezoidal shape on the side walls 2a, 3a (see FIG. 1).

  Note that the breaking lines L1, L1 and the connecting breaking line L2 can be used as long as they can tear the corrugated cardboard sheet as a material for forming the cardboard box 1 along the breaking lines L1, L1 and the connecting breaking line L2. The structure is not particularly limited. For example, break lines L1, L1 and connection of a perforated shape in which holes penetrating the front and back are discontinuously or a half perforated shape in which holes not penetrating the front and back are discontinuously formed It can be employed as the breaking line L2.

  Moreover, what is necessary is just to adjust the shape and magnitude | size of this cardboard box 1 suitably according to the magnitude | size etc. of the to-be-contained object M accommodated in an inside. For example, if the object M is a book of A4 size PPC paper, the size and shape of the inner bottom surface of the cardboard box 1 is almost the same size and shape as the A4 size, and there are a plurality of books on the inside. The size can be accommodated (see FIG. 3 or FIG. 4).

  Since the corrugated cardboard box 1 is configured as described above, the object M accommodated therein can be easily taken out as follows.

  First, as shown in FIG. 3 (A) and FIG. 3 (B), the lower edge of each lid piece 2b, 3b, 4b, 5b that forms the upper surface of the cardboard box 1 from a state in which the cardboard box 1 is sealed. The upper edge of each lid piece is swung from the closed position (FIG. 3A) to the released position (FIG. 3B) to open the upper surface of the cardboard box 1 (FIG. 3B). )).

  Next, the upper portions of the cover pieces 2b and 3b provided at the upper edges of the opposite side walls 2a and 3a of the cardboard box 1 are moved downward while being grasped by hand. Specifically, the side walls 2a and 3a are cut along the breaking lines L1 and L1 formed on the side walls 2a and 3a while the lid pieces 2b and 3b are gripped (FIG. 3C). At this time, the lower ends of the lid pieces 2b and 3b are provided so as to be positioned between the base ends of the fracture lines L1 and L1. For this reason, the side walls 2a and 3a to which the lid pieces 2b and 3b are connected in accordance with the movement of the lid pieces 2b and 3b can be obtained by simply moving the lid pieces 2b and 3b to the lower side outside the cardboard box 1 while holding the lid pieces 2b and 3b. , And can be easily cut along L1. That is, the lid pieces 2b and 3b and the side walls 2a and 3a connected to the lid pieces 2b and 3b can be easily cut along the breaking lines L1 and L1 simply by pulling outward while holding the lid pieces 2b and 3b. (See FIG. 3C).

  2B and FIG. 3D, when it is cut along the connection breaking line L2 formed between the leading ends of the breaking lines L1 and L1 in a state of being cut to the leading ends of the breaking lines L1 and L1. As shown in FIG. 4, a region surrounded by a pair of breaking lines L1, L1, a connecting breaking line L2, and upper edges of the side walls 2a, 3a (hereinafter referred to as side wall opening forming portions 2a3, 3a3), and upper ends of the side walls 2a, 3a The lid pieces 2b and 3b provided on the edge can be cut out from the cardboard box 1.

  Then, as shown in FIG. 2 (B) and FIG. 3 (D), a continuous opening connecting the opposing side walls 2a, 3a and the upper surface of the cardboard box 1 can be formed in the cardboard box 1. As shown in FIGS. 2B and 3D, side wall openings having the same shape as the side wall opening forming portions 2a3 and 3a3 can be formed on the side walls 2a and 3a of the cardboard box 1. it can.

  The side wall openings formed in the side walls 2a and 3a can be formed in a substantially V shape when the above-described connection breaking line L2 is short, and a substantially inverted trapezoidal shape (when having a certain length) (See FIG. 2B).

  In addition, the side wall opening is formed so that the tips of the pair of break lines L1, L1 are located in the vicinity of the lower edge of the side walls 2a, 3a, so that the lower end is located in the vicinity of the lower edge of the side walls 2a, 3a. It is formed by an edge. Moreover, the upper end is formed by the line which connects the both ends of the upper end edge of the side walls 2a and 3a. For this reason, in the upper part of the side wall 2a of the corrugated cardboard box 1, the entire side surface of the object M accommodated in the corrugated cardboard box 1 can be substantially exposed (see FIG. 3D). Further, at the lower part of the side wall 2a of the cardboard box 1, the side surface of the object M located near the inner bottom surface in the cardboard box 1 can also be exposed to the outside. That is, as shown in FIG. 2 (B) or FIG. 3 (D), at a glance in the front view of the side wall 2a, 3a of the cardboard box 1 in this state (when viewed from the front side in FIG. 2 or FIG. 3). Thus, it is possible to grasp the state of the object M in the cardboard box 1.

  And the to-be-contained object M accommodated in this cardboard box 1 can be easily taken out through the side wall openings formed in the side walls 2a and 3a. Specifically, the exposed part of the object M can be firmly grasped by putting a hand through the side wall openings formed in the side walls 2a and 3a. And if it lifts up in this state, the to-be-contained object M can be taken out easily. Moreover, when grasping and lifting the object M, it is not necessary to put a finger between the outer surface of the object M and the inner surfaces of the side walls 2a and 3a, so there is a risk that fingers, nails, etc. may be caught between the two. Nor.

Further, as shown in FIG. 2 (B) or FIG. 3 (D), since the side wall opening is formed to the vicinity of the bottom surface of the cardboard box 1, an object to be stored located toward the bottom of the cardboard box 1. M can also be easily taken out as described above.
Therefore, as shown in FIG. 3, even if the object M is tightly accommodated so that there is no gap in the cardboard box 1, through the side wall openings formed in the side walls 2a and 3a, The cardboard box 1 can be easily taken out.

Further, as shown in FIG. 2B, if the side wall opening forming portions 2a3 and 3a3 are cut from the side walls 2a and 3a along the pair of break lines L1 and L1 and the connection break line L2, the side walls 2a and 3a The substantially triangular corner portions 2a1, 2a2, 3a1, 3a2 can be formed on both sides of the side wall opening. And as shown in FIG. 4, if the part containing corner part 2a1, 3a1 (or corner part 2a2, 3a2) which opposes this corner part 2a1, 2a2, 3a1, 3a2 is bent below, this part Can function as a support for the cardboard box 1. A portion that functions as a support for the cardboard box 1 is hereinafter simply referred to as a support base forming portion.
Below, the case where this cardboard box 1 is supported by the support stand formation part which has the corner parts 2a1 and 3a1 which oppose is demonstrated.

  As shown in FIG. 2 (B), the support base forming portion is formed from the opposing substantially triangular corner portions 2a1, 3a1, the side wall 5a, the lid piece 5c continuous from the lower end of the side wall 5a, and the lower end of the side wall 2a. Of the continuous lid pieces 2c, the lid piece is continuous from the lower edge of the corner portion 2a1, and the lid piece 3c is continuous from the lower edge of the corner portion 3a1 of the lid piece 3c continuous from the lower end of the side wall 3a. .

  As shown in FIG. 2 (B), if the line connecting the intersections where the lower edges of the opposing corners 2a1, 3a1 intersect with the hypotenuse is taken as an axis C, the side walls constituting the support base forming part with the axis C as a fulcrum The upper edge of 5a can be swung downward (FIGS. 4A to 4B). That is, the support base forming portion is bent downward with the axis C as a fulcrum. At this time, since the lid pieces 2c and 3c are bent along the axis C, the lid pieces 2c and 3c located between the lower edges of the corner portions 2a1 and 3a1 are part of a support wall described later of the support base forming portion. It functions as a part. And the upper end of this support wall mentioned later moves upwards with the movement of the upper end edge of the side wall 5a of a support stand formation part. Further, along with the movement of the upper end of the support wall described later, the lid pieces 2c and 3c connected to the upper end also move upward. On the other hand, the lower edge of the side wall 4a of the cardboard box 1 is maintained in contact with the placement surface on which the cardboard box 1 is placed.

  For this reason, if the upper end edge of the side wall 5a of the support base forming portion is swung downward, the bottom surface of the cardboard box 1 is inclined obliquely with respect to the mounting surface on which the cardboard box 1 is mounted. Can do. Then, as shown in FIGS. 4B and 4C, if the outer surface of the side wall 5a constituting the support base forming portion is brought into surface contact with the placement surface, the bottom surface of the cardboard box 1 is placed on the placement surface. It can hold | maintain in the state inclined with respect to.

  Moreover, as shown in FIGS. 4 (B) and 4 (C), if the outer surface of the side wall 5a of the support base forming portion is brought into surface contact with the mounting surface, the support wall (for example, in FIG. 2 (B), The lid piece 5c and the wall formed by the lid pieces 2c and 3c positioned between the lower edges of the corners 2a1 and 3a1) are substantially perpendicular to the mounting surface because the angle formed between the inner surface and the inner surface of the side wall 5a is substantially perpendicular. Can be installed almost vertically. For this reason, even if the load applied to the upper end portion of the support wall is increased, the load can be supported by the support wall. For this reason, even if the to-be-contained object M accommodated in this cardboard box 1 is heavy to some extent, it can suppress that a support stand formation part deform | transforms or is crushed. In addition, it is preferable to form the support wall of the support forming portion by the plurality of side walls described above, because the strength of the support wall can be improved.

  On the other hand, as shown in FIG. 4, the object M accommodated in the corrugated cardboard box 1 is exposed at the portion covered by the support base forming portion until the support base forming portion is bent downward. It will be in the state. Moreover, as shown in FIG. 4, this portion can be installed at a position spaced upward from the placement surface by inclining the corrugated cardboard box 1.

  Therefore, as shown in FIG. 4 (B) or FIG. 4 (C), if the cardboard box 1 is inclined with respect to the placement surface by the support base forming portion, the objects to be accommodated in the cardboard box 1 are accommodated. M can be installed so as to be inclined with respect to the placement surface. Then, for example, when the placement surface is lower than a person's knee, the object M can be taken out with a slight bend. In particular, when the weight of the object M is heavy, it is possible to further reduce the burden of taking out compared to the case where the object M is installed horizontally with respect to the placement surface. Moreover, if the entire exposed portion of the object M is gripped, even the heavy object M can be reliably and easily removed from the cardboard box 1.

  In particular, if the connecting break line L2 formed between the ends of the pair of break lines L1, L1 is made slightly longer and the side wall opening forming portions 2a3, 3a3 are formed to have an inverted trapezoidal shape, the corrugated cardboard box 1 Can be made more stable with respect to the mounting surface.

  Specifically, as shown in FIG. 2 (B), corner portions 2a1 and 2a2 in a state of being separated from the side walls 2a and 3a by the inverted trapezoidal side wall opening forming portions 2a3 and 3a3 with the side wall openings interposed therebetween, 3a1 and 3a2 can be formed. At this time, as shown in FIG. 2B, the length R1 of the lower end edge of the corner portions 2a1, 3a1 constituting the support base forming portion is calculated from the length of the lower end edge of the side walls 2a, 3a. It becomes shorter than length R2 which pulled length R1 of the lower end edge of 3a1. When the cardboard box 1 is inclined with respect to the mounting surface by the support table forming section having the corner portions 2a1 and 3a1, the height (that is, R1) of the support table forming section is set to the cardboard box. It can be made shorter than the distance of one inclined surface (that is, R2).

  For this reason, even if this cardboard box 1 is inclined, it can be maintained in a stable state. Moreover, the lengths R1 and R2 can be adjusted by adjusting the length of the short side of the inverted trapezoidal shape of the side wall opening forming portions 2a3 and 3a3. That is, if the length of the connection break line L2 is adjusted, the height (that is, R1) of the support base forming portion can be adjusted, so that the inclination angle of the cardboard box 1 can be adjusted to an appropriate angle.

  Further, as shown in FIGS. 2 and 4, the connecting breaking line L2 formed between the ends of the pair of breaking lines L1, L1 is formed so as to provide gaps 2aq, 3aq between the lower end edges of the side walls 2a, 3a. It is preferable to do this. In this case, even if the side wall opening forming portions 2a3 and 3a3 are cut off from the side walls 2a and 3a along the pair of breaking lines L1 and L1 and the connecting breaking line L2, the inner bottom surface of the cardboard box 1 is provided at the lower end of the side wall opening. The side wall bottoms 2aq and 3aq of the side walls 2a and 3a can be left.

  Then, as shown in FIG. 4, it can suppress that the to-be-contained object M moves outside by this side wall bottom part 2aq, 3aq. Therefore, as shown in FIGS. 4 (B) and 4 (C), after the side walls 2a and 3a are cut along the pair of breaking lines L1 and L1 and the connecting breaking line L2, they are accommodated in the corrugated cardboard box 1. It can install in the state which held the to-be-contained object M cleanly.

The lid pieces 2c and 3c continuous from the lower end edges of the side walls 2a and 3a have the following advantages if the fibers are formed so as to be along the vertical direction (the vertical direction in FIG. 2) of the side walls 2a and 3a. Therefore, it is preferable.
As shown in FIG. 2B, if the fiber direction of the lid pieces 2c and 3c is formed along the vertical direction of the side walls 2a and 3a, the fiber direction bends the support base forming portion downward. It can be formed so as to be substantially parallel to the axis C. Then, when the support base forming part is bent downward with the axis C as a fulcrum, the fiber direction of the lid pieces 2c and 3c does not become a resistance, so the support base forming part can be easily bent along the axis C. .

  Moreover, you may form so that the front-end | tip of a pair of fracture | rupture lines L1 and L1 may be located inward rather than the upper end edge of the cover pieces 5c and 4c continued from the lower end edge of the side walls 5a and 4a. In this case, if the side wall opening forming portions 2a3 and 3a3 are cut from the side walls 2a and 3a along the pair of breaking lines L1 and L1 and the connecting breaking line L2, the corner is formed with the side wall opening portions of the side walls 2a and 3a interposed therebetween. A point where the oblique sides of the portions 2a1, 2a2, 3a1, 3a2 intersect with the lower end edge can be formed so as to be located inward of the upper end edges of the lid pieces 5c, 4c (see FIG. 2B). . The intersecting points can be made to substantially coincide with the axis C when the opposing corner portions 2a1, 3a1 function as the support base forming portion as described above. Then, since it can prevent that the cover piece 5c interferes when bending this support stand formation part toward the downward direction, a support stand formation part can be bent reliably.

(Explanation of development of cardboard box 1)
As described above, the cardboard box 1 may be formed by combining or connecting a plurality of members. However, if a single sheet S is bent and formed as described later, the assembly can be simplified and the sheet can be easily formed before and after use. Moreover, if it is made into a sheet, it will not be bulky, so it will be easier to carry and will not take up any storage space.

  The sheet S as will be described later may be formed in any way. For example, a single sheet may be formed by pressing and punching, or a single sheet may be cut and formed. However, if it is formed by press working, the working speed is increased and it becomes easy to form accurately in a predetermined shape.

(Description of sheet S1)
Hereinafter, the sheet S1 will be described.

  In the following, the sheet S1 that can form the cardboard box 1 in the shape shown in FIG. 5 will be described. However, the shape and structure of the sheet S1 should be changed as appropriate according to the shape and size of the cardboard box 1. Can do.

  Further, in FIG. 5, the portion where the crease line is formed by a method such as embossing is indicated by a dotted line. That is, the sheet S1 can be bent at the dotted line. In the following description, the mountain fold means a state of being folded away from the paper surface in FIG. 5, and the mountain fold line indicates a portion where the sheet S1 is folded. Further, the valley fold means a state of being folded to the near side with respect to the paper surface in FIG. 5, and the valley fold line indicates a portion where the sheet S1 is folded.

  As shown in FIG. 5, the sheet S <b> 1 has a shape in which four plate-like members S <b> 2 to S <b> 5 are connected at their side edges. Specifically, as shown in FIG. 5, the sheet S1 is connected from the top in the order of a plate-like member S5, a plate-like member S2, a plate-like member S4, and a plate-like member S3.

Each plate-like member includes a portion that becomes each side wall of the cardboard box 1 as follows.
The plate-like member S2 and the plate-like member S3 are portions including the side wall forming plate S2a and the side wall forming plate S3a, which are the opposite side wall 2a and side wall 3a of the cardboard box 1 described above. The plate-like member S4 and the plate-like member 5 are portions including the side wall forming plate S4a and the side wall forming plate S5a, which are the opposing side wall 4a and side wall 3a of the cardboard box 1 described above.

  Hereinafter, based on FIG. 5, each member of the sheet S1 will be described in order from the top.

First, as shown in FIG. 5, the plate-like member S5 includes a side wall forming plate S5a, an upper lid piece forming plate S5b, and a lower lid piece wall forming plate S5c. In the plate-like member S5, a mountain fold line that can be folded is formed at the connecting portion between the side wall forming plate S5a and the upper lid piece forming plate S5b, and at the connecting portion between the side wall forming plate S5a and the lower lid piece wall forming plate S5c. .
As shown in FIG. 5, the side wall forming plate S5a of the plate-like member S5 is a portion that becomes the side wall 5a of the cardboard box 1 described above. Further, the upper lid piece forming plate S5b of the plate-like member S5 is a portion that becomes the lid piece 5b of the cardboard box 1 described above. The lower lid piece forming plate S5c of the plate-like member S5 is a portion that becomes the lid piece 5c of the cardboard box 1 described above.

A plate-like member S2 is connected to the lower side of the plate-like member S5. The plate-like member S2 includes a side wall forming plate S2a, an upper lid piece forming plate S2b, and a lower lid piece wall forming plate S2c. In the plate-like member S2, a mountain fold line is formed at the connecting portion between the side wall forming plate S2a and the upper lid piece forming plate S2b, and at the connecting portion between the side wall forming plate S2a and the lower lid piece wall forming plate S2c. .
As shown in FIG. 5, the side wall forming plate S <b> 2 a of the plate-like member S <b> 2 is a portion that becomes the side wall 2 a of the cardboard box 1 described above. Further, the upper lid piece forming plate S2b of the plate-like member S2 is a portion that becomes the lid piece 2b of the cardboard box 1 described above. And lower lid piece formation board S2c of plate-shaped member S2 is a part used as the cover piece 2c of this cardboard box 1 mentioned above.

  As shown in FIG. 5, the side wall forming plate S <b> 2 a of the plate-like member S <b> 2 is a portion that becomes the side wall 2 a of the cardboard box 1 as described above. A pair of break lines L1 and L1 are formed on the side wall forming plate S2a. The pair of break lines L1 and L1 are formed so as to connect the connecting portion between the side wall forming plate S2a and the lower cover piece wall forming plate S2c, with the connecting edge of the side wall forming plate S2a and the upper cover piece forming plate S2b as the base end. ing. And the connection breaking line L2 is formed so that between the front-end | tips of a pair of breaking line L1 and L1 located in the vicinity of this connection part may be connected. The pair of break lines L1, L1 and the connection break line L2 correspond to the break lines L1, L1 and the connection break line L2 formed on the side walls 2a, 3a of the cardboard box 1 described above.

A plate-like member S4 is connected to the lower side of the plate-like member S2.
The plate-like member S4 includes a side wall forming plate S4a, an upper lid piece forming plate S4b, and a lower lid piece wall forming plate S4c. In the plate-like member S4, mountain fold lines that can be folded are formed at the connecting portion between the side wall forming plate S4a and the upper lid piece forming plate S4b, and at the connecting portion between the side wall forming plate S4a and the lower lid piece wall forming plate S4c. .
As shown in FIG. 5, the side wall forming plate S4a of the plate-like member S4 is a portion that becomes the side wall 4a of the cardboard box 1 described above. Further, the upper lid piece forming plate S4b of the plate-like member S4 is a portion that becomes the lid piece 4b of the cardboard box 1 described above. And lower lid piece formation board S4c of plate-shaped member S4 is a part used as the cover piece 4c of this cardboard box 1 mentioned above.

And the plate-shaped member S3 used as the last of sheet | seat S1 is connected to the lower side of plate-shaped member S4. The plate-like member S3 includes a side wall forming plate S3a, an upper lid piece forming plate S3b, and a lower lid piece wall forming plate S3c. In the plate-like member S3, mountain fold lines that can be folded are formed at the connecting portion between the side wall forming plate S3a and the upper lid piece forming plate S3b, and at the connecting portion between the side wall forming plate S3a and the lower lid piece wall forming plate S3c. .
As shown in FIG. 5, the side wall forming plate S3a of the plate-like member S3 is a portion that becomes the side wall 3a of the cardboard box 1 described above. Further, the upper lid piece forming plate S3b of the plate-like member S3 is a portion that becomes the lid piece 3b of the cardboard box 1 described above. The lower lid piece forming plate S3c of the plate-like member S3 is a portion that becomes the lid piece 3c of the cardboard box 1 described above.

As shown in FIG. 5, the side wall forming plate S3a of the plate-like member S3 is a portion that becomes the side wall 3a of the corrugated cardboard box 1 as described above. A pair of break lines L1 and L1 are formed on the side wall forming plate S3a in the same manner as the above-described side wall forming plate S2a. The pair of break lines L1 and L1 are formed so as to connect the connecting portion between the side wall forming plate S3a and the lower cover piece wall forming plate S3c, with the connecting edge of the side wall forming plate S3a and the upper cover piece forming plate S3b as the base end. ing. And the connection breaking line L2 is formed so that between the front-end | tips of a pair of breaking line L1 and L1 located in the vicinity of this connection part may be connected. The pair of break lines L1, L1 and the connection break line L2 correspond to the break lines L1, L1 and the connection break line L2 formed on the side walls 2a, 3a of the cardboard box 1 described above.
In addition, as shown in FIG. 5, the tongue piece is connected with the lower end edge of side wall formation board S3a of plate-shaped member S3.

  If the sheet S1 is formed in the shape as described above, the corrugated cardboard box 1 can be formed by assembling using the same method as that for forming a general cardboard box. For example, after applying an adhesive or the like to the tongue piece connected to the lower end edge of the side wall forming plate S3a of the plate member S3, the tongue piece is connected to the upper end of the side wall forming plate S5a of the plate member S5. Then, since each member of sheet | seat S1 can be connected in a circle shape, if each connection part is bend | folded so that the angle | corner which the board which connected each board formed may form a substantially right angle, this cardboard box 1 can be formed. it can.

  The corrugated cardboard box of the present invention includes a can, a box-shaped container, a bottle, a bag-shaped food, a daily necessary such as a medicine, a detergent, stationery, as well as those further contained in a small box, PPC It is suitable as a packaging material for storing paper books.

DESCRIPTION OF SYMBOLS 1 Cardboard box 2a Side wall 2b The cover piece which forms the upper surface of a cardboard box 2c The lid piece which forms the lower surface of a cardboard box 3a The side wall which opposes the side wall 2a 3b The lid piece which forms the upper surface of a cardboard box 3c The lower surface of a cardboard box is formed Lid piece 4a Side wall 4b Lid piece forming the upper surface of the cardboard box 4c Lid piece forming the lower surface of the cardboard box 5a Side wall facing the side wall 4a 5b Lid piece forming the upper surface of the cardboard box 5c Lid forming the lower surface of the cardboard box Piece L1 Break line L2 Link break line

Claims (6)

A rectangular cardboard box having four side walls and having an opening formed by the upper edge of the four side walls,
On the side wall,
A continuous lid piece is provided from the upper edge,
In the opposite side wall among the side walls,
A cardboard box having a pair of break lines connecting both ends of the upper edge and the lower edge. The pair of break lines is
2. The cardboard box according to claim 1, wherein the cardboard box is substantially V-shaped. Between the ends of the pair of break lines,
The corrugated cardboard box according to claim 1 or 2, wherein a connecting break line connecting the tips is formed. Between the connection break line and the lower end edge of the side wall where the pair of break lines are formed,
4. A cardboard box according to claim 1, 2 or 3, wherein a gap is formed. In the side wall on which the pair of break lines are formed,
A lid piece that is continuous from the lower edge is provided,
The lid piece
5. The cardboard box according to claim 1, wherein the fibers are formed along the vertical direction of the side wall provided with the lid piece. In the other side wall connected to the side edge of the side wall where the pair of break lines are formed,
A continuous lid piece is provided from the lower edge of the side wall;
6. The corrugated cardboard box according to claim 1, 2, 3, 4, or 5, wherein the ends of the pair of break lines are formed so as to be located inward from the upper end edge of the lid piece.

Images