JP6948710B2 - Cardboard box - Google Patents

Description

The present invention relates to a cardboard box information regarding the contents is printed on the surface.

Conventionally, a corrugated cardboard box for accommodating the contents of a product or the like has a lot number. Information such as identification numbers, barcodes, and dates of manufacture can be printed directly, or printed tape materials, sealing materials, and label materials can be attached to the surface so that the contents can be easily confirmed. Alternatively, a tape material or the like may be attached to a part of the surface of the cardboard box, and information may be printed on the tape material or the like with an inkjet printer or the like.

However, it may rub against corrugated cardboard or other members that come into contact with each other due to vibration or the like, and the printed portion may become thin and difficult to read. Further, when the corrugated cardboard boxes are stacked and stored in the state of blank sheets, the ink in the printed portion may be transferred to the back surface of the stacked corrugated cardboard. When the ink is transferred to the back surface of the corrugated cardboard, it may be transferred to the contents when the corrugated cardboard is used, and the corrugated cardboard cannot be used due to the cause of foreign matter adhesion. In addition, it may be necessary to protect the surface of the box on which irregularities such as Braille are formed, labels and stickers with information on the irregularities, and the portion of the corrugated cardboard that has been directly subjected to irregularities.

In order to solve this problem, it is considered that the printed portion is recessed from the surface of the corrugated cardboard to a certain depth. A method of denting a predetermined range to a certain depth from the surface of corrugated cardboard is disclosed in the following patent documents.

The corrugated cardboard of Patent Document 1 has a recess formed therein, and information is displayed on the bottom surface of the recess. The method of forming the concave portion is to provide a pressing portion for forming the concave portion in a punching die for punching the corrugated cardboard into a predetermined shape, and press the pressing portion when the corrugated cardboard is punched out by the punching die to form the concave portion.

The ribbed corrugated cardboard box of Patent Document 2 is provided with ribs that become recesses when pressed from the front side of the corrugated cardboard on the elevation plate. The ribs are formed by step crushing that crushes the core of corrugated cardboard in a planar shape. The ribs are formed by attaching a pressing member for auxiliary ruled lines to a punching die that punches corrugated cardboard into a predetermined shape, and a receiving member is provided inside the pressing member. The receiving member is made of a material having some elasticity such as cork. The cutting plate located on the opposite surface of the corrugated cardboard is provided with a flat plate-shaped pressing member made of hard plastic, metal, or the like. When the corrugated cardboard sheet is sandwiched between the pressing member and the receiving member and compressed, ribs are clearly formed in the shapes of the pressing member and the receiving member.

Japanese Unexamined Patent Publication No. 5-305686 Japanese Unexamined Patent Publication No. 2008-28087

In the case of Patent Document 1 of the above background technique, since the pressing portion is pressed from the surface of the corrugated cardboard to form a concave portion, the surface on the back side of the surface on which the concave portion is formed may protrude in a convex shape, and rubbing when stacked. There is a problem that occurs. Further, when the liner on the surface of the corrugated cardboard is dry, the liner may be cracked, and it is difficult to make a recess having an expected depth. Further, due to the elasticity of the core of the corrugated cardboard, the recess may be restored, and it is difficult to maintain a sufficient depth. Further, a method of providing a blade for cutting a corrugated cardboard liner around a pressing portion of a punching die is also disclosed, and a deep recess can be easily formed by cutting a part of the liner and the core. However, cutting the liner on the surface reduces the strength of the corrugated cardboard.

Further, in the case of Patent Document 2, it is disclosed that a pressing member for auxiliary rule is provided around the receiving member of the punching die to form ribs in a clear shape, but the structure of the punching die is complicated. be. Further, the ribs are for reinforcement or for a design that imagines the stored state of the contents, and it is not considered to form the ribs to a sufficient depth to protect the printing or to maintain the depth.

The present invention has been made in view of the above-mentioned problems of the background technology, and is a corrugated cardboard box in which the display portion provided on the surface of the corrugated cardboard is kept clear and ink or the like of the display portion is prevented from adhering to other members. The purpose is to provide.

The present invention is a corrugated cardboard box made of corrugated cardboard for accommodating articles. A back side recess slightly larger than the front recess is provided, and the front recess and the back recess are formed by stepping to press the corrugated cardboard sheet of the corrugated cardboard box from both the front and back surfaces in the thickness direction, and the bottom of the front recess is formed. , A corrugated cardboard box in which a display unit for displaying arbitrary information is provided with printing ink or the like. The distance between the bottoms of the front side recess and the back side recess is 70% or less of the plate thickness of the corrugated cardboard sheet, and it is preferable that 30% or more of the plate thickness of the corrugated cardboard sheet is step-crushed. Further, the front side recess and the back side recess formed in the cardboard box may be provided with the front surface and the back surface of the cardboard box reversed.

The cardboard box of the present invention is to create a blank sheet is a development shape of the cardboard box punched in die-cut cardboard sheets, is intended to produce by assembling the blank sheet sterically. Both sides of the corrugated cardboard box are pressed by the punching die, and a front recess is formed on one surface by stepping, and the front recess is slightly larger than the front recess at a position facing the front recess on the other surface. It is a method of manufacturing a corrugated cardboard box that forms a recess on the back side including a range. The distance between the bottom of the front side recess and the bottom of the back side recess is 70% or less of the thickness of the corrugated cardboard sheet, and 30% or more of the thickness of the corrugated cardboard sheet is crushed. It is preferable to provide a display unit for displaying.

Further, in the manufacture of the corrugated cardboard box of the present invention, a corrugated cardboard box having a die for forming a blank sheet which is a developed shape of the corrugated cardboard box by punching the corrugated cardboard sheet and forming a front side recess for providing a display portion on the surface of the blank sheet. Yeoul manufacturing equipment. The punching die is composed of a punching die main body provided with a blade for punching the corrugated cardboard sheet into the blank sheet and a pedestal for receiving the punching die main body. A relatively hard pressing member for pressing the front surface to form the front side recess is provided, and the pedestal has appropriate flexibility for pressing the back surface of the corrugated cardboard sheet to form the back side recess. A relatively flexible pressing member receiver is provided, and the pressing member receiver is provided at a position facing the pressing member, slightly larger than the pressing member, and provided in a shape including the range of the front side recess. The distance between the pressing member and the pressing member receiver is 70% or less of the corrugated cardboard sheet thickness when the punching die punches the corrugated cardboard sheet, and 30% or more of the corrugated cardboard sheet thickness is stepped to the front side. and forms so as to be opposite to each other the recess and the back side recess.

The pressing member is a plate having a uniform thickness, and the pressing surface on the side opposite to the mounting surface is slightly smaller than the mounting surface in contact with the punching die body, and the cross-sectional shape in the thickness direction protruding from the punching die body. Is trapezoidal. The punching die body is made of metal, for example, and the pressing member is made of resin, for example.

The pressing member receiver is a plate having a uniform thickness, the pressing surface on the side opposite to the mounting surface is slightly smaller than the mounting surface in contact with the pedestal, and the cross-sectional shape in the thickness direction protruding from the pedestal is large. It is trapezoidal. The pedestal is made of wood, for example, and the pressing member receiver is made of cork or sponge, for example.

In the corrugated cardboard box of the present invention, the display portion provided on the surface of the corrugated cardboard is kept clear, and the ink of the display portion is prevented from adhering to other members. In addition, a front side recess can be formed in the corrugated cardboard box by a simple manufacturing device using a simple manufacturing device, and a display unit for displaying arbitrary information is provided at the bottom of the front side recess to prevent the display unit from rubbing against other members. , Prevents printed characters and patterns from becoming lighter. In particular, it is possible to reliably protect information displayed on a display having arbitrary irregularities such as Braille.

It is a perspective view of the corrugated cardboard box of one Embodiment of this invention. It is the schematic which shows the manufacturing method and manufacturing apparatus which manufactures the corrugated cardboard box of this embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of the present invention, and the corrugated cardboard box 10 of this embodiment is provided by three-dimensionally assembling a blank sheet formed by punching a corrugated cardboard sheet 1 into a predetermined shape. The thickness of the corrugated cardboard sheet is 3 mm here.

The corrugated cardboard box 10 is provided with a rectangular bottom surface 12, and side surfaces 14, 16, 18, and 20 are provided on the four sides of the bottom surface 12, and is assembled into a square cylinder. The sides 14, 16, 18, and 20 opposite the bottom surface 12 are open.

A front side recess 22 is formed on a part of the surface 14a of the side surface 14. The front side recess 22 is a rectangle that is long in a direction parallel to the bottom surface 12. On the back surface 14b on the side opposite to the front surface 14a of the side surface 14, a back side recess 23 is formed at a position facing the front side recess 22. The back side recess 23 is a rectangle slightly larger than the front side recess 22, and is formed large so as to surround the range of the front recess 22. The front side recess 22 and the back side recess 23 are formed by being stepped from the front surface 14a and the back surface 14b, and the distance between the bottom portion 22a of the front side recess 22 and the bottom portion 23a of the back side recess 23 is about 1.8 to 2.0 mm. It is crushed to 70% or less of the original 3 mm plate thickness of the corrugated cardboard sheet 1. That is, it is crushed by 30% or more and decreased. A label material 24 is attached to the bottom portion 22a of the front side recess 22 on the surface 14a. The label material 24 is provided with a display unit 26 printed with ink, and the display unit 26 displays information and the like regarding the contents to be accommodated in characters and patterns. The display unit 26 may be printed directly on the bottom portion 22a of the front side recess 22.

Next, the manufacturing method and the manufacturing apparatus of the corrugated cardboard box 10 of this embodiment will be described with reference to FIG. The corrugated cardboard box 10 is manufactured by a manufacturing apparatus having a punching die 30. Here, the punching die 30 will be described. The punching die 30 is composed of a punching die main body 32 provided with a blade (not shown) for pulling out the corrugated cardboard sheet 1 into a blank sheet which is an expanded shape of the corrugated cardboard box 10, and a cradle 34 for receiving the punching die main body 32. There is. The pedestal 34 is provided with a stopper (not shown) that supports the punching die main body 32 at a position where a blade (not shown) abuts on the pedestal 34, and the corrugated cardboard sheet 1 is positioned at a predetermined position on the pedestal 34 by the stopper. Be done. Further, the pressing surface 32a of the punching die main body 32 is provided with a relatively hard pressing member 36 for pressing the corrugated cardboard sheet 1 to form the front side recess 22 at a position corresponding to the side surface 14 of the corrugated cardboard box 10. ing. The punching die main body 32 is made of metal, for example, and the pressing member 36 is made of resin, for example. The pressing member 36 is a plate body having a uniform thickness, and the thickness is, for example, 2 mm. The shape of the pressing member 36 in the direction parallel to the pressing surface 32a of the punching die main body 32 is appropriately set, and is, for example, a rectangle of 55 × 185 mm. The pressing member 36 has a slightly smaller pressing surface 36b on the side opposite to the mounting surface 36a than the mounting surface 36a in contact with the punching die body 32, and has a trapezoidal cross-sectional shape in the thickness direction protruding from the punching die body 32. If the thickness of the pressing member 36 is other than 2 mm, for example, 1 mm, the depth of the front recess 22 is not sufficient, and if it is 3 mm, the depth is sufficient, but the liner on the corrugated cardboard surface is cracked, so that the thickness is 2 mm. Is suitable. In order to prevent the liner from cracking, the corners of the peripheral edge of the pressing surface 36b of the pressing member 36 may be chamfered and rounded.

The receiving surface 34a of the pedestal 34 is provided with a pressing member receiver 38 having appropriate flexibility and relatively flexibility at a position facing the pressing member 36. The pedestal 34 is made of wood, for example, and the pressing member receiver 38 is made of cork, for example. The pressing member receiving 38 is a plate having a uniform thickness like the pressing member 36, and the pressing member receiving 38 is formed to be slightly thicker than the pressing member 36, and the thickness is, for example, 8 mm. The shape of the pressing member receiver 38 in the direction parallel to the receiving surface 34a of the pedestal 34 is slightly larger than that of the pressing member 36, and is, for example, a rectangle of 60 × 190 mm. The pressing member receiving 38 has a slightly smaller pressing surface 38b on the side opposite to the mounting surface 38a than the mounting surface 38a in contact with the pedestal 34, and has a trapezoidal cross-sectional shape in the thickness direction protruding from the pedestal 34. The pressing surface 38b of the pressing member receiving 38 is larger than the pressing surface 36b of the pressing member 36, includes the range of the pressing surface 36b, and the peripheral edge portion of the pressing surface 36b faces the pressing surface 38b. The pressing member receiver 38 may be made of sponge as well as cork. If it is made of sponge, make it thicker than cork. For example, it is 10 mm.

When the punching die main body 32 is closed to the pedestal 34 via the stopper, the distance between the pressing surface 36b of the pressing member 36 and the pressing surface 38b of the pressing member receiver 38 is larger than the thickness of the corrugated cardboard sheet 1. small. For example, it is 70% or less of the plate thickness of the corrugated cardboard sheet 1, and the plate thickness of the corrugated cardboard sheet 1 can be crushed by 30% or more. Here, the thickness of the corrugated cardboard sheet 1 is 3 mm, and the distance between the pressing surface 36b of the pressing member 36 and the pressing surface 38b of the pressing member receiver 38 is about 1.8 to 2.0 mm.

Next, a manufacturing method for manufacturing the corrugated cardboard box 10 from the corrugated cardboard sheet 1 using the punching die 30 having the above configuration will be described. First, the corrugated cardboard sheet 1 shown in FIG. 2A is prepared. The thickness of the corrugated cardboard sheet 1 is, for example, 3 mm. Then, as shown in FIG. 2B, the corrugated cardboard sheet 1 is set in the punching die 30. When setting, the front surface 1a of the corrugated cardboard sheet 1 is directed toward the die main body 32, and the opposite back surface 1b is directed toward the pedestal 34. Then, the punching die 30 is operated to cut the corrugated cardboard sheet 1 into a predetermined shape, and the pressing member 36 is pressed against the surface 1a of the corrugated cardboard sheet 1 to form the front side recess 22 and the position facing the front side recess 22 of the back surface 1b. The back side recess 23 is formed so as to be slightly larger than the front side recess 22 as a whole and surround the front side recess 22. The distance between the bottom portion 22a of the front side recess 22 and the bottom portion 23a of the back side recess 23 is 1.8 mm to 2 mm. The back side recess 23 may have a rough texture with cork marks, and if a sponge material is used to avoid this, the texture becomes flat. As a result, the corrugated cardboard sheet 1 is punched into a predetermined shape to form a blank sheet, and the blank sheet is three-dimensionally assembled to manufacture the corrugated cardboard box 10.

Before and after assembling the corrugated cardboard box 10, a label material 24 on which the display portion 26 is printed is attached to the bottom portion 22a of the front side recess 22 to display information and the like regarding the contents to be accommodated. The thickness of the label material 24 is less than 1 mm. For example, Nichiban High Craft Tape NO. 320W has a thickness of 0.2 mm. The depth of the front side recess 22 is 0.5 mm or more, which is a sufficient depth. In some cases, two label materials 24 are laminated, and since the depth is 0.5 mm or more, two labels can be laminated.

The manufacturing method for manufacturing the corrugated cardboard box 10 may be such that the punching die main body 32 and the pedestal 34 are reversed, and the front and back sides of the corrugated cardboard sheet 1 are reversed, and the pressing member 36 and the pressing member receiver 38 are used to form a front recess. 22 and the back side recess 23 may be formed in the corrugated cardboard sheet 1. Further, the front side recess 22 and the back side recess 23 may be formed at the same time as the formation of the fold ruled line or the like.

Even if the corrugated cardboard box 10 is placed adjacent to the corrugated cardboard box 10 having the same shape in the box body state or stacked in the state of a flat blank sheet during use or after use, the label material 24 can be used. Since it is attached to the bottom portion 22a of the front side recess 22, the display portion 26 does not rub against the adjacent cardboard box 10 and ink does not adhere to it. Further, the front side recess 22 and the back side recess 23 are not restored to a convex shape due to aging, maintain a sufficient depth, and prevent the display unit 26 from rubbing.

According to the corrugated cardboard box 10 of this embodiment, the display portion 26 provided on the surface 14a of the side surface 14 of the corrugated cardboard box 10 is kept clear, and ink or the like of the display portion 26 is prevented from adhering to other members. Further, by providing the display unit 26 with information in a display having arbitrary irregularities such as Braille, the displayed information can be reliably protected. In particular, the front side recess 22 is formed on the surface 14a of the side surface 14, and the display unit 26 displays information about the contents to be accommodated in the bottom portion 22a of the front side recess 22 to prevent the display unit 26 from rubbing against other members and printed. Prevents letters and patterns from becoming thin.

The front side recess 22 and the back side recess 23 maintain a sufficient depth even if they are slightly restored due to the elasticity of the core due to the change with time, and neither of them becomes convex when restored. Since the back side recess 23 is formed larger than the front side recess 22 and is positioned so as to surround the back side recess 23, it is more reliable to prevent the front side recess 22 from being restored over time. Since it is pressed from the front surface 14a and the back surface 14b of the side surface 14 to crush the corrugated board, it is possible to dent 30% or more of the thickness of the corrugated cardboard sheet 1, and even if it is restored to some extent and becomes shallow, there is a margin and the function is sufficiently maintained. can do. When the label material 24 is attached to the bottom portion 22a of the front side recess 22 and the display portion 26 is provided on the label material 24, it is possible to prevent the label material 24 from peeling off.

When the corrugated cardboard box 10 is used as a through box, even if the display portion 26 of the label material 24 is repeatedly written or erased, it is located at the bottom portion 22a of the front side recess 22 so that it does not rub against other members. , No ink adhesion. Since the front side recess 22 is formed on the front surface 14a and the back side recess 23 is provided at a position facing the front side recess 22 on the back surface 14b, it is possible to prevent color transfer and rubbing even when stacking in the state of blank sheets. can. The back surface 14b does not become convex due to the influence of the pressing force forming the front side recess 22 on the front surface 14a, and the back surface 14b does not come into contact with the front side recess 22 of the stacked blank sheets.

The punching die 30 for manufacturing the corrugated cardboard box 10 has a simple structure, and the front side recess 22 and the back side recess 23 can be reliably formed on the corrugated cardboard sheet 1 while being simple. It can be reliably pressed from the front surface 14a and the back surface 14b with sufficient force to crush the steps, and even after a lapse of time, it is restored and the front side recess 22 does not become shallow. The liner of the corrugated cardboard sheet 1 is not cracked, and the strength of the corrugated cardboard box 10 can be maintained. The punching die 30 has a simple structure of the pressing member 36 and the pressing member receiving 38 and can be pressed with a strong force, and has a trapezoidal shape in which the pressing surfaces 36b and 38b are smaller than the mounting surfaces 36a and 38a and is stable. Can be attached to. Since the pressing member receiver 38 is larger than the pressing member 36, the entire pressing surface 36b of the hard pressing member 36 can be received by the flexible pressing member receiver 38, the liner is not damaged, and the yield at the time of manufacturing is good. Further, since the pressing member receiver 38 is provided on the pedestal 34, the blank sheet can be easily removed from the die 30 after die cutting, and the manufacturing efficiency is high.

The corrugated cardboard box of the present invention is not limited to the above-described embodiment, and the size of the box body, the material, the shape of the bottom surface, the presence or absence of a lid, and the like can be appropriately changed. The shape, position, depth, etc. of the concave portion on the front side may be other than the above, and in addition to attaching the label material provided with the display portion, a tape material, a sealing material, or the like may be used, and the display portion may be provided directly on the bottom. .. The front side recess may be provided on the bottom surface or a lid portion (not shown) in addition to the side surface of the corrugated cardboard box, and the back side recess may be provided at a position facing the front side recess.

Further, in the above description, the front surface and the back surface of the corrugated cardboard are defined for convenience of explanation, and the front and back surfaces may be reversed to form a front side recess in which a display portion is provided on the back side of the corrugated cardboard box. .. For example, it can be used for anti-counterfeiting and for making it possible to confirm predetermined information after opening.

1 Corrugated cardboard sheet 10 Corrugated cardboard box 14 Side surface 14a Surface 14b Back surface 22 Front side recess 23 Back side recess 24 Label material 26 Display part 30 Punching die 32 Punching die Main body 34 Cradle 36 Pressing member 38 Pressing member receiving

Claims (2)

In a cardboard box made of cardboard that houses goods,
A front side recess is formed on a part of the surface of the corrugated cardboard box, and a back side recess that is larger than the front side recess and includes a range of the front side recess is provided on the back surface opposite to the front surface at a position facing the front side recess. ,
The front side recess and the back side recess are formed by crushing the corrugated cardboard sheet of the corrugated cardboard box from both the front and back surfaces in the thickness direction, and the depth of the front side recess is 0.5 mm or more, and the front side recess and the back side. The distance between the bottoms of the recesses is 70% or less of the thickness of the corrugated cardboard sheet.
A corrugated cardboard box characterized in that a display unit for displaying arbitrary information is provided at the bottom of the front side recess. The corrugated cardboard box according to claim 1, wherein the front side recess and the back side recess formed in the corrugated cardboard box are provided with the front surface and the back surface of the corrugated cardboard box reversed.

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