JP2022026663A - Reversible blank - Google Patents

Abstract

To provide a reversible blank allowing, with a simple configuration, for easily reusing as a packaging box, achieving energy saving as to recycling and disposal, reducing the burden on environment and furthermore reusing without spoiling a fine view or in a state a new fine view is imparted.SOLUTION: A sheet-formed reversible blank is made up by a plurality of constituent portions continuously provided through crease lines and allowed to form a packaging box by assembling, so that it can be assembled into a state that a first surface of the reversible blank is exposed outside or into a state that a second surface of the reversible blank is exposed outside.SELECTED DRAWING: Figure 1

Description

The present invention relates to a reversible blank that can be used upside down, in particular, for forming a packaging box such as a cardboard box.

In recent years, the demand for packaging boxes such as cardboard boxes used for transportation has increased not only for transportation from corporate stores related to mail-order sales using the Internet to individuals, but also for transportation between individuals via flea market apps. It is increasing rapidly.
Conventionally, various configurations of packaging boxes are known (for example, Patent Document 1), but packaging boxes once used for transportation often have stains on the outer surface and are transported to individuals. Most of the packaging boxes used in the box are discarded once they are used, and energy saving for recycling and disposal is not sufficiently achieved.

Japanese Unexamined Patent Publication No. 2000-281506

The present invention has been made based on the above circumstances, has a simple structure, can be easily reused as a packaging box, saves energy for recycling and disposal, and has an environmental load. It is an object of the present invention to provide a reversible blank that can be reduced and can be reused without spoiling the aesthetic appearance or with a new aesthetic appearance.

The present invention is a sheet-shaped reversible blank that is composed of a plurality of components serially connected via a crease line and can be assembled to form a packaging box.
The problem is solved by being able to assemble as a packaging box in a state where the first surface of the reversible blank is exposed to the outside or a state in which the second surface of the reversible blank is exposed to the outside.

According to the first aspect of the present invention, the reversible blank can be assembled as a packaging box in a state where the first surface of the reversible blank is exposed to the outside or a state in which the second surface of the reversible blank is exposed to the outside. As a result, it can be easily reused as a packaging box by flipping it from the state where the first surface is exposed to the outside to the state where the second surface is exposed to the outside, and as a result, about recycling and disposal. It is possible to save energy and reduce the environmental load.
Further, even if the first surface of the packaging box assembled so that the first surface is exposed to the outside is contaminated, the packaging box is assembled upside down so that the unstained second surface is exposed to the outside. As a result, the product can be reused without spoiling the appearance or with a new appearance, and the degree of freedom in the usage can be increased.

According to the inventions according to claims 2, 4 and 5 of the present invention, the reversible blank is formed so as to surround the first adhesive region on the first surface and / or the second adhesive region on the second surface. By forming the half-cut portion, it is possible to prevent the region other than the intended adhesive region from being unintentionally damaged due to the unbonding of the joint portion when the joint portion including the glue layer is unbonded. However, since the first adhesive region and the second adhesive region can be peeled off, the joint portion can be unbonded without significantly impairing the appearance, and it is related to cosmetics when used upside down. You can get a packaging box that maintains its value.

According to the third aspect of the present invention, the half-cut portion is formed by a perforation line formed by repeating a notch having a length of 10 mm and a tsunagi having a length of 1 mm, and thus includes a glued layer. The first adhesive region and / or the second adhesive region can be peeled off while surely avoiding that the region other than the intended adhesive region is unintentionally damaged when the joint portion is unbonded.

According to the invention according to claim 6 of the present invention, the packaging box assembled from the reversible blank is an assembled box assembled by engagement without using a gluing layer, so that the engagement is released and the packaging box is turned upside down. Since the packaging box with the second side as the front surface can be assembled by simply reassembling it by engaging again, it can be easily reused, and the value related to cosmetics is maintained when it is used upside down. You can get a packaged box.

The plan view which shows the 2nd surface (back liner surface) of the reversible blank which concerns on 1st Embodiment of this invention. The plan view which shows the 2nd surface (back liner surface) of the reversible blank which concerns on 2nd Embodiment of this invention. The plan view which shows the 2nd surface (back liner surface) of the reversible blank which concerns on 3rd Embodiment of this invention.

The reversible blank of the present invention is a sheet-shaped reversible blank that is composed of a plurality of components connected through a crease line and can be assembled to form a packaging box, and the first surface of the reversible blank is on the outside. It can be assembled as a packaging box in a state where the reversible blank is exposed to the outside, or a state in which the second surface of the reversible blank is exposed to the outside. If it is configured so that it can be easily reused as a packaging box by reversing it, and as a result, energy saving for recycling and disposal can be achieved and the environmental load can be reduced, other The specific configuration may be anything.
The material constituting the reversible blank of the present invention can be selected from various paper materials such as corrugated cardboard sheets and cardboard, but the paper quality may be anything, various coated materials, and resins other than paper. It may be formed of such as.

<First Embodiment>
Hereinafter, the reversible blank 100 according to the first embodiment of the present invention will be described with reference to the drawings.
The reversible blank 100 according to the first embodiment is composed of a plurality of constituent parts each connected via a crease line, and is assembled through a step of bending along each fold line and adhering through a gluing layer. Thereby, a substantially rectangular parallelepiped shape having a short cylindrical side peripheral wall having a quadrangular cross section (square shape in this example), an upper wall that closes the upper end of the side peripheral wall, and a bottom wall that closes the lower end of the side peripheral wall. Packaging box (gluing box) can be obtained.

As shown in FIG. 1, the reversible blank 100 is a single sheet-shaped blank, and four rectangular side walls 131 connected in one direction via fold lines 135, 136, and 137, respectively. , 132, 133, 134 and the rectangular upper flaps 141, 142, 143 connected via foldable fold lines 145, 146, 147, 148 on the upper side of each side wall 131, 132, 133, 134, respectively. , 144 and similarly, rectangular bottom flaps 151, 152, which are connected to the lower side of each side wall 131, 132, 133, 134 via foldable fold lines 155, 156, 157, 158, respectively. It has 153 and 154. Gap is formed between the adjacent upper flaps 141, 142, 143, 144, and between the adjacent bottom flaps 151, 152, 153, 154, respectively, and the flaps are configured to be bent independently of each other.
Further, a state in which the adhesive piece 111 projects outward on one end of the side walls 131, 132, 133, and 134 in the continuous direction, that is, on the outer end of the side wall 131 (the left end in FIG. 1). It is formed so as to be continuously provided via a crease line 112.
The reference numeral A shown in FIG. 1 indicates the eye direction (direction in which the hollow is flowing) of the corrugated cardboard sheet.

The reversible blank 100 is made of a corrugated cardboard sheet. The corrugated cardboard sheet is composed of a double-sided corrugated cardboard having a corrugated core, a front liner provided on one side of the core, and a back liner provided on the other side of the core. The corrugated cardboard sheet may be composed of a so-called double-sided corrugated cardboard or a double-sided double-sided corrugated cardboard in addition to the double-sided corrugated cardboard.

The front liner surface (first surface) (the surface opposite to the paper surface in FIG. 1) of the adhesive piece 111 in the reversible blank 100 is provided with a first adhesive region 113 to which the adhesive layer is to be adhered. On the other hand, the end of the back liner surface (second surface) of the side wall 134 including the other end side in the continuous connection direction in which the adhesive pieces 111 of the side walls 131, 132, 133, and 134 are not continuously connected (on the right side in FIG. 1). The end) is provided with a second adhesive region 114 having a shape that faces the first adhesive region 113 and is compatible with the first adhesive region 113 that should be adhered to the first adhesive region 113 when assembled. Note that FIG. 1 is a view viewed from the back liner surface side of the reversible blank 100.
Then, the side walls 131, 132, 133, and 134 are bent along the crease lines 135, 136, and 137 so that the front liner surface is exposed to the outside so that the two adjacent side walls are at right angles, and the adhesive piece 111 is formed. The first adhesive region 113 on the front liner surface of the above is opposed to the second adhesive region 114 on the back liner surface of the side wall 134, and a glue layer is interposed between them with an appropriate glue to press and dry the adhesive piece. The 111 can be joined to the outer end of the side wall 134 to form a joint.

In the reversible blank 100 according to the first embodiment, a half-cut portion 120 that has been half-cut so as to surround the second adhesive region 114 on the back liner surface of the side wall 134 is formed.
In the half-cut portion 120, a layer including the outermost layer in the thickness direction of the corrugated cardboard sheet constituting the reversible blank 100 is formed so as to be peelable together with the gluing layer.
The half-cutting process means that when the joint portion is released from the joint by applying an appropriate peeling force between the adhesive piece 111 and the side wall 134, the desired adhesive region is formed from the back liner surface of the side wall 134. Is peeled off, but the other adjacent areas remain without damage.
The half-cut portion 120 can be formed by, for example, a perforation line surrounding the second adhesive region 114. Here, "surrounding the second adhesive region 114" means a configuration in which the second adhesive region 114 is completely surrounded only by the perforation line of sight, or the perforation line of sight is extended to the outer edge of the corrugated cardboard sheet constituting the reversible blank 100. It includes a configuration in which the second adhesive region 114 is completely surrounded by the perforation line and the outer edge of the corrugated cardboard sheet.
The half-cutting portion 120 is not limited to being composed of perforations, and may be composed of other half-cutting lines such as a half-cutting line that is continuously shallowly cut halfway in the thickness direction. ..

The depth of cut of the perforation line that constitutes the half-cut portion 120 varies depending on the material type and thickness that constitute the reversible blank 100, but in the case of a corrugated cardboard sheet, it is all from the back liner surface to the inside of the back liner in the thickness direction. The depth can be halfway through the core.
Further, the cutting pitch of the perforation line also differs depending on the material type and the thickness constituting the reversible blank 100. As an example of the cut pitch of the perforation line, a repeated pitch of a cut with a length of 10 mm and a jumpsuit with a length of 1 mm can be mentioned.

The reversible blank 100 as described above is used as a packaging box (front liner box) assembled with the front liner surface exposed to the outside, and then assembled with the back liner surface exposed to the outside (back liner). It can be used as a box) without spoiling the aesthetics by turning it upside down.
When used as a front liner box, first, the side walls 131, 132, 133, 134 are bent along the crease lines 135, 136, 137 so that the front liner surface is exposed to the outside, and the front liner of the adhesive piece 111 is used. By facing the first adhesive region 113 of the surface to the second adhesive region 114 of the back liner surface of the side wall 134 and forming a gluing layer with an appropriate glue between them, the adhesive piece 111 is located on the outer side of the side wall 134. It is joined to the ends to form a joint, which forms a short tubular side wall of the packaging box. At this time, all of the glued layer is in a state of being contained in the first adhesive region 113 and the second adhesive region 114. In the front liner box, the adhesive piece 111 is located on the inner side of the packaging box. Next, the bottom flaps 151, 152, 153, and 154 are appropriately bent so that the front liner surface is exposed to the outside, and the bottom walls are attached to each other with kraft tape or the like to form a bottom wall that closes the lower end of the side peripheral wall. It is possible to obtain a packaging box for accommodating the contained items inside. Further, the upper flaps 141, 142, 143, 144 are appropriately bent so that the front liner surface is exposed to the outside, and the upper flaps are attached to each other with kraft tape or the like to form an upper wall that closes the upper end of the side peripheral wall. The packaging box can be packed.

The packaging box using the front liner in the above-mentioned packaging state is half-cut by opening the upper wall and the bottom wall and further imparting a peeling force that separates the adhesive piece 111 and the side wall 134 from each other. The joint portion is released from the joint portion with the breakage of the portion 120, whereby the reversible blank 100 can be returned to the unfolded state. In the unbonding of the joint portion accompanied by the breakage of the half-cut portion 120, the half-cut portion 120 is broken along the perforation line by the applied peeling force in the second adhesive region 114 of the back liner surface of the side wall 134. The second adhesive region 114 is cleanly peeled from the side wall 134 together with the gluing layer, and the other regions adjacent to the second adhesive region 114 on the back liner surface of the side wall 134 remain without damage.

When this reversible blank 100 is assembled and used as a back liner box by inverting the front and back, the side walls 131, 132, 133, 134 are along the crease lines 135, 136, 137 so that the back liner surface is exposed to the outside. The first adhesive region 113 on the front liner surface of the adhesive piece 111 is opposed to the second adhesive region 114 on the back liner surface of the side wall 134, and a glue layer with an appropriate glue is formed between them. The adhesive piece 111 is joined to the outer end of the side wall 134 to form a joint portion, thereby forming a short tubular side peripheral wall of the packaging box. In the back liner box, the adhesive piece 111 is located on the outer side of the packaging box, and the peeling marks at the time of disassembling the front liner box in the half-cut processing portion 120 are joined by a new gluing layer so that they cannot be visually recognized.
Further, the bottom flaps 151, 152, 153, 154 and the top flaps 141, 142, 143, 144 are arranged in an appropriate order so that the back liner surface is exposed to the outside. The back liner box can be assembled by bending it at a substantially right angle along 146, 147, and 148, or attaching it to each other with kraft tape or the like.
The reversible blank 100 is not limited to being used as a front liner box for the first time, and may be used as a back liner box for the first time. In addition, it can be used three or more times by repeating the flipping of the front and back.

As the glue for forming the gluing layer, various known glues can be used without particular limitation, and for example, starch glue such as cornstarch glue or rice glue can be used.

Although the reversible blank according to the first embodiment of the present invention has been described in detail above, the present invention is not limited to the above-described embodiment and is within the scope of the gist of the present invention described in the claims. It is possible to make various changes in.
For example, in the reversible blank according to the first embodiment of the present invention, the half-cut portion is not limited to being configured to surround the second adhesive region, but surrounds the first adhesive region facing the second adhesive region. It may be configured as one that surrounds the second adhesive region and one that surrounds the first adhesive region. When configured to have both the one surrounding the second adhesive region and the one surrounding the first adhesive region, the glue layer at the time of the previous use is removed without unintended damage to the front and back liner surfaces. can do.

Further, for example, the reversible blank 100 can be configured such that various decorative sheets are attached on the front liner surface and / or the back liner surface of the corrugated cardboard sheet. It is assumed that the perforation line is formed only on the sheet, and the second adhesive region 114 may be peeled off only by breaking the decorative sheet without damaging the corrugated cardboard sheet when the joint portion is disjointed.
Further, for example, the reversible blank 100 may be configured such that decorative sheets having different colors / patterns are attached to the front liner surface and the back liner surface of the corrugated cardboard sheet, and the design is changed by inverting the front and back.

<Second embodiment>
The reversible blank 200 according to the second embodiment has the same configuration as the reversible blank 100 according to the first embodiment with respect to the short cylindrical side peripheral wall and the upper wall closing the upper end of the side peripheral wall, and when assembled. A substantially rectangular parallelepiped packaging box (glue box) having a one-touch bottom wall can be obtained. In the reversible blank 200 according to the second embodiment, the components serving as the side peripheral wall and the upper wall are numbered with reference numerals in the 100s in the reversible blank 100 according to the first embodiment as the 200s. explain. The reference numeral B shown in FIG. 2 indicates the direction of the corrugated cardboard sheet.

As shown in FIG. 2, the reversible blank 200 includes outer bottom flaps 251 and 253 which are connected to the lower sides of the side walls 231 and 233 which are a pair of opposite side peripheral walls via foldable fold lines 255 and 257, respectively. The outer bottom flaps 251 and 254 have inner bottom flaps 252 and 254 connected via foldable fold lines 256 and 258, respectively, on the lower sides of the other pair of opposite side peripheral walls 232 and 234. A one-touch bottom wall can be formed by 253 and inner bottom flaps 252 and 254.
Approximately V-shaped notches 261 and 263 are formed in the central portion of the outer bottom flaps 251 and 253, and the outer bottom flaps 251 and 253 are abutted so as to intersect with each other and then the notches are formed. The 261 and the notch 263 engage by engaging with each other. Further, the outer bottom flaps 251 and 253 are provided with folding lines 271 and 273 at positions extending diagonally of the bottom wall after assembly. The folding lines 271 and 273 may be perforations in which cuts are provided intermittently. The inner bottom flaps 252 and 254 have a substantially trapezoidal shape, and the hypotenuses opposite to the adjacent outer bottom flaps 251 and 253 to be adhered (the hypotenuses on the right side in FIG. 2 respectively) are diagonal lines of the bottom wall after assembly. It is formed in a state where it is located above.

The front liner surface (first surface) (the surface opposite to the paper surface in FIG. 2) of the adhesive piece 211 in the reversible blank 200 is provided with a first adhesive region 213 related to the side peripheral wall to which the adhesive layer should be adhered. There is. On the other hand, the end of the back liner surface (second surface) of the side wall 234 including the other end side in the continuous connection direction in which the adhesive pieces 211 of the side walls 231, 232, 233, and 234 are not continuously connected (on the right side in FIG. 2). The end) is provided with a second adhesive region 214 having a shape that faces the first adhesive region 213 and is compatible with the first adhesive region 213 that should be adhered to the first adhesive region 213 when assembled. Note that FIG. 2 is a view viewed from the back liner surface side of the reversible blank 200.
Then, the side walls 231, 232, 233, and 234 are bent along the crease lines 235, 236, and 237 so that the front liner surface is exposed to the outside, and the two adjacent side walls are bent at right angles, and the adhesive piece 211 is formed. The first adhesive region 213 of the front liner surface of the above is opposed to the second adhesive region 214 of the back liner surface of the side wall 234, and a glue layer is interposed between them with an appropriate glue to press and dry the adhesive piece. The 211 can be joined to the outer end of the side wall 234 to form a joint portion relating to the side peripheral wall.

Further, in the region on the adjacent inner bottom flaps 252 and 254 sides to be adhered from the folding lines 271 and 273 on the back liner surface (second surface) of the outer bottom flaps 251 and 253, the bottom to which the adhesive layer should be adhered. Second adhesive regions 216 and 218 related to the wall are provided, respectively. On the other hand, the front liner surface (first surface) (the surface opposite to the paper surface in FIG. 2) of the inner bottom flaps 252 and 254 faces the second adhesive regions 216 and 218 related to the bottom wall when assembled. The second adhesive regions 216 and 218 related to the bottom wall to be adhered to this are provided, and the first adhesive regions 215 and 217 related to the bottom wall having a shape compatible with the second adhesive regions 216 and 218 are provided, respectively.
Then, the side peripheral walls are assembled by the side walls 231, 232, 233, and 234, and the outer bottom flaps 251 and 253 and the inner bottom flaps 252 and 254 are formed at the crease lines 255, 256, 257, and 258 so that the front liner surface is exposed to the outside. The adjacent outer bottom flap 251 and inner bottom flap 252 are the second adhesive region 216 and the front liner of the inner bottom flap 252 related to the bottom wall of the back liner surface of the outer bottom flap 251 in a state of being bent at a substantially right angle along the line. The outer bottom flap 253 and the inner bottom flap 254 are bonded to the first adhesive region 215 related to the bottom wall of the surface by the intervention of a glue layer with an appropriate glue, and the inner bottom flap 254 is the back liner of the outer bottom flap 253. The bottom is bonded by interposing a glue layer with an appropriate glue between the second adhesive region 218 related to the bottom wall of the surface and the first adhesive region 217 related to the bottom wall of the front liner surface of the inner bottom flap 254. Two joints can be formed on the wall.

In the reversible blank 200 according to the second embodiment, similar to the reversible blank 100 according to the first embodiment, half-cut processing is performed so as to surround the second adhesive region 214 on the back liner surface of the side wall 234. The half-cut portion 220 is formed.
In the reversible blank 200 according to the second embodiment, the second adhesive region 216 relating to the bottom wall of the back liner surface of the outer bottom flap 251 and the second adhesive region relating to the bottom wall of the back liner surface of the outer bottom flap 253 are further adhered. Half-cutting processed portions 221 and 222 that have been subjected to half-cutting processing surrounding the region 218 are formed, respectively. The half-cutting portions 221 and 222 are formed from a perforation line or the like like the half-cutting processing portion 120 of the reversible blank 100 according to the first embodiment. Since the half-cut processed portions 221 and 222 related to the bottom wall can be visually recognized as peeling marks when used by inverting the front and back, the shape (trajectory of the perforation line of sight) of the half-cut processed portions 221 and 222 is given a design. It is preferable that it is. Examples of the shape of the half-cutting portions 221 and 222 include a round shape, an oblong shape, a heart shape, a cloud shape, and the like.

Similar to the reversible blank 100 according to the first embodiment, the reversible blank 200 as described above is used as a packaging box (front liner box) assembled with the front liner surface exposed to the outside, and then the back liner surface. It can be used as a packaging box (back liner box) assembled with the box exposed to the outside without spoiling the aesthetic appearance.
When used as a front liner box, after forming a short tubular side peripheral wall as in the reversible blank 100 according to the first embodiment, the notch 261 of the outer bottom flap 251 and the notch of the outer bottom flap 253 are used. The second adhesive region 216 related to the bottom wall of the back liner surface of the outer bottom flap 251 and the first adhesive region 215 related to the bottom wall of the front liner surface of the inner bottom flap 252 are engaged with each other by engaging with the 263. The second adhesive region 218 related to the bottom wall of the back liner surface of the outer bottom flap 253 and the first adhesive region 217 related to the bottom wall of the front liner surface of the inner bottom flap 254 are joined by the intervention of the glue layer. By joining by interposition, a bottom wall that closes the lower end of the side peripheral wall can be formed, and a packaging box for accommodating the contained items can be obtained inside. The bottom wall is configured as a one-touch type that can be folded even in a glued state by folding the folding lines 271 and 273 to the outside in a valley fold.

The packaging box using the front liner described above opens the upper flaps 241 and 242, 243, 244 forming the upper wall, and imparts a peeling force that separates the adhesive piece 211 and the side wall 234 from each other to the side. The joint portion related to the side peripheral wall with the break of the half-cut processed portion 220 related to the peripheral wall is released from the joint, and the joint portion related to the bottom wall with the half-cut processed portion 221 and 222 related to the bottom wall is released from the joint. As a result, the reversible blank 200 can be returned to the expanded state. In the unbonding of the joint portion related to the bottom wall accompanied by the breakage of the half-cut processed portions 221 and 222 related to the bottom wall, the second adhesive region 216 and the outer bottom flap 253 related to the bottom wall of the back liner surface of the outer bottom flap 251 In the second adhesive region 218 related to the bottom wall of the back liner surface, the second adhesive region 216 and 218 together with the gluing layer are formed on the outer bottom together with the gluing layer by breaking along the perforation line of the half-cut processed portions 221 and 222 due to the applied peeling force. The flaps 251 and 253 are neatly peeled off, and the other regions adjacent to the second adhesive regions 216 and 218 on the back liner surface of the outer bottom flaps 251 and 253 are not peeled off and remain undamaged.

When this reversible blank 200 is assembled and used as a back liner box by inverting the front and back, the adhesive piece 211 is located on the outer side of the packaging box, and peeling marks at the time of disassembling the front liner box in the half-cut processing portion 220. Will be invisible by being joined by a new gluing layer. On the other hand, in the half-cut processed portions 221 and 222 surrounding the second adhesive regions 216 and 218 related to the bottom wall of the back liner surface of the outer bottom flaps 251 and 253, the peeling marks at the time of dismantling the front liner box are new glue layers. It remains visible because it is not joined by.
The reversible blank 200 is not limited to being used as a front liner box for the first time, and may be used as a back liner box for the first time. In addition, it can be used three or more times by repeating the flipping of the front and back.

Although the reversible blank according to the second embodiment of the present invention has been described in detail above, the present invention is not limited to the above-described embodiment and is within the scope of the gist of the present invention described in the claims. It is possible to make various changes in.

<Third embodiment>
The reversible blank 300 according to the third embodiment is assembled by engagement without bending through a gluing layer, so that a short cylindrical side wall having a quadrangular cross section (rectangular shape in this example) has a rectangular shape. A packaging box (assembled box) having a substantially rectangular parallelepiped shape is obtained by integrally providing a packaging box main body portion that stands up against the bottom wall of the box and a lid portion that opens and closes an upper opening.

The reversible blank 300 is a single sheet-shaped blank, which includes a rectangular bottom plate portion 311 which is a bottom wall of the packaging box, and a front plate portion 320 and a bottom plate portion which are side peripheral walls on the front side of the packaging box. 311. The rear surface plate portion 330, which is the side peripheral wall on the rear surface side of the packaging box, and the top plate portion 340, which is the lid portion, are connected in this order via a crease line so as to line up in the lateral direction of the bottom plate portion 311. The side plate portions 350, 350, which are the side peripheral walls on the side surface side of the packaging box, are continuously provided on each of the pair of longitudinal sides of the bottom plate portion 311 facing each other via the crease line. The reference numeral C shown in FIG. 3 indicates the direction of the corrugated cardboard sheet.

Engagement holes 312 and 312 are provided at the boundary between the bottom plate portion 311 and the side plate portions 350 and 350, respectively.

In the side plate portion 350, an outer wall surface portion 351 continuous with the bottom plate portion 311, an upper wall surface portion 354 continuous with the outer wall surface portion 351 and an inner wall surface portion 355 continuous with the upper wall surface portion 354 are continuously provided via a crease line. It is composed of.
The inner wall surface portion 355 is formed so that the engaging piece portion 356 engaged with the engaging hole 312 of the bottom plate portion 311 extends outward from the outer end edge.

The top plate portion 340 is configured by connecting an upper wall surface portion 341 continuous with the bottom plate portion 311 and a front wall surface portion 344 continuous with the upper wall surface portion 341 via a crease line, and packaging the lid portion. Insertion pieces 361 that are locked to the box main body in a closed state are continuously provided via fold lines so as to extend outward from the outer edge of the front wall surface portion 344.
The insertion piece 361 is formed so that the width dimension is smaller than that of the insertion piece main body portion 362 provided at the boundary between the bottom plate portion 311 and the front plate portion 320.

Reinforcing flaps 321 located on the inner surface side of the adjacent side peripheral walls in the assembled state are continuously provided at both ends of the front plate portion 320 via the crease line.
Further, at both ends of the rear surface plate portion 330, reinforcing flaps 331 located on the inner surface side of the adjacent side peripheral walls in the assembled state are continuously provided via crease lines.

The reversible blank 300 as described above is used as a packaging box (front liner box) assembled with the front liner surface exposed to the outside, and then assembled with the back liner surface exposed to the outside (back liner). It can be used as a box) without spoiling the aesthetics by turning it upside down.
When used as a front liner box, first, the front plate portion 320, both side surface plate portions 350, and the rear surface plate portion 330 of the reversible blank 300 are bent at each crease line so that the front liner surface is exposed to the outside. Stand up so that it stands up against the bottom plate 311. Next, the reinforcing flap 321 of the front plate portion 320 and the reinforcing flap 331 of the rear surface plate portion 330 are bent along the crease line so that the front liner surface faces the inner surface (back liner surface) of the both side surface plate portions 350, and in this state, both side surface plates are bent. By bending the upper wall surface portion 354 and the inner wall surface portion 355 of the portion 350 inward and engaging the engaging piece portion 356 with the engaging hole 312 of the bottom plate portion 311, the outer wall surface portion 351 and the inner wall surface portion 355 of the both side surface plate portions 350 are engaged. A side peripheral wall is erected with respect to the bottom wall with the reinforcing flap 321 of the front plate portion 320 and the reinforcing flap 331 of the rear plate portion 330 sandwiched between the two, thereby forming the main body of the packaging box. The lid portion is closed by inserting the insertion piece 361 of the rear plate portion 330 into the insertion piece main body portion 362 with respect to the packaging box main body portion.

The above table liner box can be disassembled by going through the reverse procedure of the assembly procedure. As a result, the reversible blank 300 can be returned to the expanded state. When this reversible blank 300 is folded upside down and used as a back liner box, all the parts that are bent so that the front liner surface is exposed to the outside are bent so that the back liner surface is exposed to the outside. Other than that, it can be assembled in the same way.
The reversible blank 300 is not limited to being used as a front liner box for the first time, and may be used as a back liner box for the first time. In addition, it can be used three or more times by repeating the flipping of the front and back.

Although the reversible blank according to the third embodiment of the present invention has been described in detail above, the present invention is not limited to the above-described embodiment and is within the scope of the gist of the present invention described in the claims. It is possible to make various changes in.

100, 200 Reversible blanks 111, 211 Adhesive pieces 112, 212 Fold lines 113, 213 First adhesive area 114, 214 Second adhesive area 215, 217 First adhesive area 216, 218 Second adhesive area 120, 220 Half-cut portion 221 and 222 Half-cut parts 131 to 134, 231 to 234 Side walls 135 to 137, 235 to 237 Fold lines 141 to 144, 241 to 244 Top flaps 145 to 148, 245 to 248 Fold lines 151 to 154 Bottom flaps 251 to 253 Outer bottom flap 252, 254 Inner bottom flap 155 to 158, 255 to 258 Fold line 261, 263 Notch 271, 273 Fold line 300 Reversible blank 311 Bottom plate part 312 Engagement hole 320 Front plate part 321 Reinforcement flap 330 Back plate part 331 Reinforcing flap 340 Top plate part 341 Upper wall surface part 344 Front wall surface part 350 Side plate part 351 Outer wall surface part 354 Upper wall surface part 355 Inner wall surface part 356 Engagement piece part 361 Insertion piece 362 Insertion piece Main body part

Claims (6)

It is a sheet-like reversible blank that is composed of a plurality of components connected through a crease line and can be assembled to form a packaging box.
A reversible blank that can be assembled as a packaging box with the first surface of the reversible blank exposed to the outside or the second surface of the reversible blank exposed to the outside. The packaging box is a gluing box in which the plurality of components are bonded and assembled via a gluing layer.
The gluing layer is laminated so as to be adhered to and interposed in the first adhesive region on the first surface of the reversible blank and the second adhesive region on the second surface to be adhered to the first adhesive region. And
The reversible blank according to claim 1, wherein the reversible blank has a half-cut portion formed so as to surround the first adhesive region and / or the second adhesive region. The half-cut portion is formed by a perforation line.
The reversible blank according to claim 2, wherein the perforation line is formed by repeating a notch having a length of 10 mm and a jumpsuit having a length of 1 mm. The packaging box has a short cylindrical side peripheral wall having a polygonal cross section, an upper wall that closes the upper end of the side peripheral wall, and a bottom wall that closes the lower end of the side peripheral wall.
The reversible blank has a plurality of rectangular side walls connected in one direction via each crease line serving as the side peripheral wall, and the crease line so as to project outward from one end side of the side wall in one direction. Has a series of adhesive pieces via
The first surface of the adhesive piece is provided with a first adhesive region to which the glue layer is to be adhered, and the end of the second surface of the side wall including the other end of the side wall in one direction is assembled. The second or third aspect of the present invention, wherein a second adhesive region having a shape facing the first adhesive region and having a shape compatible with the first adhesive region to be adhered to the first adhesive region is provided. Reversible blank. The packaging box has a short cylindrical side peripheral wall having a rectangular cross section, an upper wall that closes the upper end of the side peripheral wall, and a bottom wall that closes the lower end of the side peripheral wall.
The reversible blanks are connected to each of the four rectangular side walls that are connected in one direction via the crease lines that form the side peripheral walls, and to the lower sides of the side walls that form the pair of opposite side peripheral walls, respectively, via the fold lines. It has an outer bottom flap that is formed and an inner bottom flap that is connected to the lower side of each of the other pair of facing side wall walls via a crease line.
In the adjacent outer bottom flap and the inner bottom flap, the first surface of the inner bottom flap is provided with a first adhesive region to which the glue layer is to be adhered, and the second surface of the outer bottom flap is assembled. The reversible blank according to claim 4, wherein a second adhesive region having a shape facing the first adhesive region and having a shape compatible with the first adhesive region to be adhered to the first adhesive region is provided. The reversible blank according to claim 1, wherein the packaging box is an assembled box that is assembled by engagement without using a gluing layer.

Images