JP4899132B2 - Small folding packaging box - Google Patents

Description

The present invention relates to a packaging box for storing packages such as large electrical appliances such as liquid crystal televisions, plasma televisions or audio speakers, other books, foods,
In particular, by making the box body an accordion structure, the box body can be folded to reduce the size of the box at the time of disposal or recycling of the packaging box after use. Corrugated cardboard packaging box.

  Conventionally, when a cardboard packaging box for storing large items such as TVs and audio speakers is finally disposed of, it can be broken by hand, etc., and put into a garbage bag made of synthetic resin. The current situation is that it is discarded or folded so that it is forcibly reduced, and the folded state is retained with a tape or string. However, tearing the cardboard by hand and chopping it into a small piece is very laborious and is very laborious, and if the cardboard packaging box is folded so as to be forcibly small, it must be folded at the part where there is no fold line. In this case, too, a large force is required, and there is a problem that it takes time and effort to wind the tape or string while maintaining the folded state, and the disposal is troublesome.

  Therefore, as disclosed in Patent Document 1 (Japanese Utility Model Publication No. 61-56226), a folding line for flaps can be folded in a plane to solve such a problem and is convenient for disposal. A perforated cut line is formed along the perforated line, and it is known that the perforated cut line can be folded in a plane by cutting open the perforated cut line.

  However, the packaging box disclosed in Patent Document 1 can be folded in a plane by cutting a perforated cut line formed along a folding line of a flap, which is usually called a “ruled line”. However, if it is folded at the middle of one plate part without a fold line, it requires a large force in the same way as the above-mentioned disposal method, and the above-mentioned disposal is performed to fold compactly in the middle of one plate part. There was a problem that it took time similar to the way of disposal.

Patent Document 2 (Japanese Patent Application Laid-Open No. 9-132230) is a corrugated cardboard packaging box, which is a pair of opposed side plates on the long side and a bottom plate forming flap continuously provided at the lower end of the opposed side plate, A continuous folding line is formed at the center of the opposite side plate in the width direction on the lid plate forming flap that is connected to the upper end of the side plate. Therefore, a technique has been proposed in which the central portion of the side plate is folded inward so that the entire box can be folded thinly and compactly.
In addition, when the applicants want to keep the size of the corrugated cardboard box small as described above, the inner flap connected to one of the two opposing side plates is used as an insertion piece. Has been proposed that allows the packaging box to be held in a compact and small folded state for disposal by inserting it into the inside of another set of side plates (Patent Documents 3 to 7).

Japanese Utility Model Publication No. 61-56226 JP-A-9-132230 Japanese Patent Laid-Open No. 2004-231192 JP-A-2005-29176 JP 2006-8156 A JP 2006-8157 A JP 2007-186265 A

By the way, the common point (common structure) of the packaging box of the said patent documents 2-7 is a fold line position of the width direction center part of a pair of opposing side board of a long side, and the side board center part of a long side is set inside. The entire box can be folded thinly and compactly by folding it into two. This is illustrated in FIG. As shown in FIGS. 20A and 20B, the widthwise dimension of the pair of opposed side plates on the long side is W, and the dimension in the width direction of the pair of opposed side plates on the short side is D. The position of the fold line (ruled line) provided at the center in the width direction of the opposite side plate on the long side is denoted by A.
The conventional packaging box configured in this manner is a fold line portion at the center in the width direction of the opposing side plate on the long side, and when the center portion of the side plate is folded inward to fold the box body into two, W / 2 In the case of <D, the side plate can be bent while forming a substantially V-shape, and the entire packaging box can be folded small. However, in the case of W / 2> D, the opposing side plates (W surface) on the long side facing each other may collide with each other, so that it is difficult to bend the side surface into a V shape. Therefore, it is difficult to fold the packaging box compactly. This situation is illustrated as (a) and (b) in FIG.

  The object of the present invention is to solve such a problem of the conventional packaging box, and in particular, by folding the opposing side plate constituting the body of the box like an accordion, An object of the present invention is to provide a corrugated cardboard packaging box capable of reducing the size of the box body by folding the body part small at the time of disposal or recycling of the packaging box.

  In order to solve the above-mentioned problem, the packaging box according to claim 1 of the present invention is a packaging box having a rectangular planar shape, and one set of two opposing side plates constituting the body of the box. The opposite side plate and the cover plate and / or the bottom plate connected to the upper and lower sides thereof are provided with folding lines (ruled lines) in which mountain folding (sometimes referred to as inner folding) and valley folding (sometimes called outer folding) are repeated. It is a packaging box characterized by having an accordion structure.

  The packaging box according to claim 2 is a corrugated cardboard packaging box having a rectangular planar shape, the long side opposing side plate among the two sets of opposing side plates constituting the box body, and the lid plate connected to the top and bottom thereof. And / or the bottom plate is provided with three folding lines (ruled lines) capable of folding the side plate, the lid plate and / or the bottom plate into at least three folds, and the side plate, the lid plate and / or the bottom plate are formed into at least a tri-fold structure. This is a packaging box characterized by the above.

  The packaging box according to claim 3 has a long side when the dimension in the width direction of the pair of opposed side plates on the long side is W and the dimension in the width direction of the pair of opposed side plates on the short side is D. A mountain fold line M is provided at a position W / 2 on the pair of opposing side plates on the side, while D / 2 is located on both sides of the central mountain fold line M and from the boundary line with the opposing side plate on the short side. The packaging box according to claim 2, wherein a valley fold line is provided at a position where ≧.

  The packaging box according to claim 4 is characterized in that a cut tape or a body breaking perforation is provided so that two sets of opposing side plates constituting the body of the box can be cut in an annular shape in the horizontal direction. To do.

According to a fifth aspect of the present invention, there is provided a folding method for a packaging box comprising: two sets of opposing side plates constituting a box portion of the box; a bottom plate forming flap continuously provided at a lower end of the opposing side plate; and an upper end of the opposing side plate. A flat shape comprising a lid for forming a cover plate is a method for folding a rectangular packaging box,
Of the two sets of opposed side plates, a bottom plate forming flap provided continuously with the lower end of the set of opposed side plates and a cover plate forming flap provided continuously with the upper end of the opposed side plate are provided with this side plate. The folding means is formed in parallel with the line, and the tip side of the folding means is used as an insertion at the time of folding.

Claim 6 of the present invention is a ruled line processing method for folding a blank material of a corrugated cardboard packaging box according to any one of claims 2 to 4, wherein a ruled line is applied to at least a place where a valley fold line is formed. When using a press blade that is wider than a normal crease-pushing blade as the press blade that is used sometimes, the crushed area is wider than that of a normal push blade, so that external force is applied from the opposite side of the surface containing the crease. The folding strength of the ruled line is reduced so that the sheet can be folded back beautifully along the ruled line.

  The packaging box according to the present invention includes at least one pair of opposing side plates and a cover plate and / or a bottom plate connected to the upper and lower sides of two sets of opposing side plates constituting the body of the box. Since the accordion structure is provided, the used box can be easily and compactly folded for disposal and recycling.

  The packaging box of the present invention includes a long side opposing side plate of two sets of opposing side plates constituting the box body, and a lid plate and / or a bottom plate connected to the upper and lower sides thereof, and the side plate and the lid plate and / or Alternatively, at least three folding lines that can fold the bottom plate in three are provided, and the side plate, the cover plate, and / or the bottom plate are formed in at least a three-fold structure. Moreover, in the present invention, when the dimension in the width direction of the pair of opposed side plates on the long side is W and the dimension in the width direction of the pair of opposed side plates on the short side is D, a set of the long side is set. While the mountain fold line M is provided at the position W / 2 on the opposite side plate, at the positions on both sides of the central mountain fold line M and at the position where D / 2 ≧ from the boundary line with the opposite side plate on the short side, Since it is configured to provide a valley fold line, even when W / 2> D, which is restricted when folding a conventional box, the opposing side plates (W surfaces) facing each other collide with each other. As a result, the opposite side surface is folded in three, and the entire packaging box can be folded small. As a result, the large-sized cardboard packaging box can be easily folded for disposal.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
First, the first embodiment will be described. Reference numeral 1 denotes, for example, a packaging box having a rectangular planar shape that is assembled using a cardboard blank as a material.
As shown in the development view of FIG. 1, this corrugated cardboard packaging box 1 is formed with two sets of opposing side plates 2, 2, 3, 3 and a bottom plate connected to the lower ends of the opposing side plates 2, 2, 3, 3. And flaps 6, 6, 7, 7 for forming lid plates connected to upper ends of the opposing side plates 2, 2, 3, 3.

  At the time of assembling, the opposing side plates 2, 2, 3, and 3 are linked in a rectangular tube shape by using a passage piece 8 that is continuously provided on the outside of one side plate 2 of the blank material. Of the two sets of opposing side plates 2, 2, 3, 3, the width of one opposing side plate 2, 2 is set shorter than the width of the other opposing side plates 3, 3. The bottom plate forming flaps 4, 4 connected to the lower ends of the opposing side plates 2, 2 on the short side are used as inner flaps, and are used to form the bottom plate connected to the lower ends of the opposing side plates 3, 3 on the long side. The flaps 5 and 5 are bent and used as outer flaps so as to overlap each other. Thereafter, the bottom plate forming flaps 4 and 5 are pressed and fixed using a sealing material such as an adhesive tape (not shown).

  The bottom plate-forming flap connected to the lower ends of the opposing side plates 2 and 2 on the short side is formed with a perforation or a fold line 4a in parallel with the connecting line with the side plate. The front end side of the folding line is used as the insertion flap 4b at the time of folding.

Next, the lid plate forming flaps 6, 6, 7, and 7 will be described.
Cover plate forming flaps 6, 6 connected to the upper ends of the opposing side plates 2, 2 on the short side are used as inner flaps, and are used to form cover plates connected to the upper ends of the opposing side plates 3, 3 on the long side The flaps 7, 7 are used as outer flaps so as to overlap each other. In addition, two lid plate forming flaps 7, 7 connected to the upper ends of the opposing side plates 3, 3 on the long side are bent first, and then the other lid plate is formed. After folding the flap for use on the cover plate, the claw piece 9 provided at the upper end of the opposite side plate 3 is inserted into the insertion hole 8b formed at the base of the insertion 8a at the tip of the flap for forming the cover plate. It is structured to keep the closed state.
The form of the packaging box to which the present invention can be applied is not limited to the form shown in FIG. For example, as exemplified in Japanese Industrial Standard (JIS Z 1507), the top and bottom flaps may be glued type, folded type, or the like.

  The perforating plate forming flaps 6 and 6 connected to the upper ends of the opposing side plates 2 and 2 on the short side are formed with perforations or fold lines 6a parallel to the connecting line with the side plate. The distal end side of the eye or the fold line is configured to be used as an insertion flap when discarded as described later.

  Reference symbol L denotes a cut tape that can cut the two sets of opposing side plates 2, 2, 3, and 3 constituting the trunk of the packaging box in a circular manner in the horizontal direction, from one end of the side plate 3 to the passage piece 8 Is attached to the side plates 2, 2, 3 and 3 in one direction so as to reach one end. It is also possible to provide a perforation for cutting the packaging box blank in place of the cut tape.

By the way, in the present invention, in order to be able to fold the used box easily and compactly for disposal and recycling, a pair of opposing side plates out of two sets of opposing side plates constituting the body of the box; The lid plate and / or the bottom plate connected to the upper and lower sides are folded like an accordion. This point will be described in detail below.

  As shown in FIGS. 1 and 2, the packaging box of the present invention has a width dimension of a pair of opposed side plates 3 on the long side and a width direction of a pair of opposed side plates 2 on the short side. When the dimension is D, a mountain fold line M is provided at a position W / 2 on a pair of opposing side plates on the long side, while the short side is located on both sides of the central mountain fold line M. A valley fold line N is provided at a position where D / 2 ≧ from the boundary line with the opposite side plate 7. The mountain fold line M and the valley fold line N are formed so as to be continuous with the opposing side plate on the long side and the upper and lower cover plates 7 and / or the bottom plate 5.

  In the above configuration, the case where the packaging box 1 is folded compactly for disposal will be described.

  First, an article to be packaged (not shown) is taken out from the packaging box 1 with the lid forming flaps 6, 6, 7, and 7 opened as shown in FIG. Next, if the two sets of opposing side plates 2, 2, 3, and 3 that make up the box body are provided with a cut tape L that can break the body, the box body is cut horizontally. Divide into two with tape T. Subsequently, the bottom sealing tape is peeled off, and the bottom plate forming flaps 4, 4, 5, 5 and the cover plate forming flaps 6, 6, 7, 7 are faced to the two sets of opposite side plates 2, 2, 3, 3. In a state where the packaging box 1 is formed into a cylindrical shape, one bottom plate forming flap 4 of the bottom plate forming flaps 4 and 5 and one lid plate of the lid plate forming flaps 6 and 7 are formed. All the remaining bottom plate forming flaps and lid plate forming flaps except for the working flaps 6 are folded so as to overlap the side plates 2, 3, and 3 on which they are connected. Specifically, the other bottom plate forming flap 5 facing the one bottom plate forming flap 4 is folded inward so as to overlap the inner surface of the side plate 2 on the short side where it is continuously provided, Folding the bottom plate forming flaps 5 and 5 connected to the lower ends of the opposing side plates 3 and 3 inwardly so that they overlap the inner surfaces of the opposing side plates 3 and 3 on the long side where they are connected, and one lid plate The other cover plate forming flap 6 facing the forming flap 6 is folded inward so as to overlap the inner surface of the side plate 2 on the short side where it is continuously provided, and is placed on the upper ends of the opposing side plates 3 and 3 on the long side. The lid-forming flaps 7 and 7 that are continuously provided are folded inward so as to overlap the inner surfaces of the opposing side plates 3 and 3 on the long side where they are continuously provided (see FIG. 4).

In such a state, a mountain fold line M is provided at a position W / 2 on a pair of opposed side plates on the long side, while on the other side of the central fold line M, the opposite side plate 7 on the short side. Since the valley fold line N is provided at a position where D / 2 ≧ from the boundary line, the opposing side plates 3 and 3 on the long side and the bottom plate connected thereto are formed along the mountain fold line M and the valley fold line N. The packaging box is crushed so that the flap 5 and the lid forming flap 7 are bent in a bellows shape as shown in FIGS.
Thereafter, in this state, the insertion flaps (4b and 6b) on the tip side of the folding lines 4a and 6a of the one bottom plate forming flap 4 and the one lid plate forming flap 6 are connected to the other side plate on the short side. 2, more specifically, the other bottom plate forming flap 4 and the other lid plate forming flap 6 folded so as to overlap the inner surface of the other side plate 2 on the other short side are inserted so as to overlap (FIG. 8). See). Thereby, the trunk | drum of the packaging box 1 will be in the state folded compactly (refer FIG. 9), and a disposal can be performed easily.

  FIGS. 10 to 17 show a second embodiment of the present invention. The difference from the first embodiment is that the body portion of the box is vertically divided into two by a cut tape. . After dividing into two parts, the upper and lower parts are folded in the same manner as in the first embodiment, but only the drawing in the folded state is shown, and the overlapping description is omitted.

As can be seen from the above description, the packaging box according to the present invention is characterized by a pair of opposing side plates and a cover plate and / or a bottom plate connected to the upper and lower sides of the two opposing side plates constituting the body of the box. It is to make an accordion (bellows) structure. In other words, a set of side plates and a cover plate and / or a bottom plate connected to the box body are provided with three folding lines that can be folded at least in three, and the side plate, the cover plate and / or the bottom plate are provided. It is characterized by at least a tri-fold structure.
Describing a specific ruled line processing method for the blank material, the long side facing side plates 3 and 3 and the bottom plate forming flap 5 and the lid plate forming flap 7 connected thereto are shown in FIGS. Are provided with a mountain fold line M and a valley fold line N, the portion of the mountain fold line M bends the opposing side plates 3 and 3 in the forward direction along the mountain fold line, and the portion of the valley fold line N is similarly reversed. In other words, the side plates can be folded in a bellows shape along the mountain fold line and the valley fold line.
In this case, the valley fold line N has a ruled line on the back surface of the packaging box, and the ruled line cannot be seen from the front surface. Since the rear side of the packaging box is folded for disposal without being visible, it is preferable to print in advance a mark (such as a mark) indicating a valley fold position as an index on the box surface. Then, when pressing a pressing blade against the blank material and putting a ruled line, when putting a valley fold ruled line into the blank material in the usual way as shown in FIG. 18, when folding at this valley fold position, from an acute fold line You have to fold along the ruled line. However, as shown in FIG. 19, by using a thick push blade to slightly widen the area where the corrugated cardboard is crushed, the crease line bending strength (ruled line strength) is weakened and beautiful along the ruled line. It is desirable to perform ruled line processing for putting a ruled line for a reverse folded ruled line in a blank material so that the sheet can be folded in reverse.
A specific ruled line processing method will be described. The valley fold line N (reverse fold ruled line) is centered on the ruled line formed by the normal pressing blade by arranging the sponge pressing blade b on both sides of the normal pressing blade a, for example. Then, both sides of the cardboard are gently crushed, and the range of the ruled lines to be put into the blank material is expanded from that of a normal pressing blade, thereby slightly expanding the range of corrugated cardboard. In this way, the valley fold line N can be neatly folded along the ruled line even if an uncertain force is applied to the vicinity of the ruled line from the opposite side.

It is an expanded view of the packaging box in the 1st Embodiment of this invention. It is a perspective view which shows the state which opened the top flap in order to discard the packaging box. It is a perspective view which shows the state which opened the cover and bottom flap of the packaging box, and laid the box sideways. It is a perspective view which shows the state before folding the lid | cover and bottom flap of the packaging box inside a box. It is a perspective view which shows the state which left the flap 1 side of the short side of the packaging box. It is a perspective view which shows the state which crushes the trunk | drum of the packaging box in the shape of a bellows. It is a perspective view which shows the state which crushed the trunk | drum of the packaging box. It is a perspective view which shows the state which bend | folds the lid | cover and bottom plate formation flap of the packaging box inside. It is a perspective view which shows the state which folded the lid | cover and bottom plate formation flap of the packaging box inside. It is a perspective view of the packaging box which shows the state which opened the lid | cover flap in 2nd Embodiment. It is a perspective view which shows the state before folding the cover flap of the packaging box inside a box. It is a perspective view which shows the state which left the flap 1 side of the short side of the packaging box. It is an expanded view of the packaging box in the 2nd Embodiment of this invention. It is a perspective view which shows the state which crushes the trunk | drum of the packaging box in the shape of a bellows. It is a perspective view which shows the state which crushed the trunk | drum of the packaging box. It is a perspective view which shows the state which bends the flap for lid plate formation of the packaging box inside. It is a perspective view which shows the state which folded the cover plate formation flap of the packaging box inside. It is explanatory drawing which shows the ruled line processing method of a normal broken line (mountain folding line M). It is explanatory drawing which shows the ruled line processing method of a reverse fold ruled line (valley fold line N), and uses the wide ruled line which arrange | positioned elastic members b, such as sponge, on both sides of the ruled line a, and the range to be crushed is more than a normal ruled line. It is explanatory drawing which shows the processing method to spread. (A) And (b) is a block diagram of the conventional packaging box. (A) And (b) is explanatory drawing when the center part of the trunk | drum of the conventional packaging box is bend | folded in V shape.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Packaging box 2, 3 Side plate 4,5, Bottom plate formation flap 6,7 Cover plate formation flap 4a Folding line 4b Inserting flap 6a Folding line 6b Inserting piece 8a Inserting 8a
8b Insertion hole L Cut tape M Mountain fold line N Valley fold line

Claims (4)

A corrugated cardboard packaging box having a rectangular planar shape, of which two side plates that constitute the box body are opposed to the long side opposite side plate and the upper and lower lid plates and / or bottom plate. Providing three fold lines that allow the lid and / or bottom plate to be folded in at least three;
The three fold lines are defined as W on the opposing plate on the long side when the dimension in the width direction of the opposing side plate on the long side is W and the dimension in the width direction of the opposing side plate on the short side is D. From the mountain fold line M provided at the position / 2 and the valley fold line N provided at a position D / 2 from the boundary line with the opposite side plate on the short side on both sides of the center mountain fold line M Become
The valley folding line N is provided on the back side of the packaging box wider than the width of the mountain folding line M,
A packaging box that can be folded small, wherein the side plate, the cover plate, and / or the bottom plate have at least a three-fold structure.   2. The small folding according to claim 1, wherein two sets of opposing side plates constituting the body portion of the box are provided with a cut tape or a perforation for body portion breaking so as to be cut in an annular shape in the horizontal direction. Packaging box. 2 sets of opposing side plates which comprise the trunk | drum of a box, the bottom plate formation flap provided in a row by the lower end of this opposite side plate, and the cover plate formation flap provided in a row by the upper end of this opposite side plate A method of folding a packaging box having a rectangular planar shape according to claim 1 or 2,
Of the two sets of opposing side plates, a bottom plate forming flap connected to the lower end of one set of the opposing side plates and a lid plate forming flap connected to the upper end of the opposing side plate are connected to this side plate. A folding method for a packaging box having a rectangular planar shape, wherein folding means is formed in parallel with a line, and the tip side of the folding means is used as an insertion when folding. It is a ruled line processing method for the bending with respect to the blank material of the corrugated board packaging box as described in any one of Claims 1-3, Comprising: The mountain fold line M as a pressing blade used at the time of ruled line provision with respect to the location which forms a valley fold line The opposite side of the surface containing the ruled line by using a wider blade than the one for applying the ruled line and expanding the crushed area beyond the pressed line of the mountain fold line M, thereby reducing the folding strength of the ruled line. A method of processing a folding ruled line for a corrugated cardboard packaging box, characterized in that when an external force is applied from the side, the sheet can be folded back beautifully along the ruled line.

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