JP6723747B2 - Cardboard for packaging, packaging boxes and cushioning materials - Google Patents

Description

The present invention, by inserting a plurality of fold lines and perforations, based on a single cardboard, a cardboard for packaging that can form a plurality of types of packaging boxes and cushioning materials by changing the folding method and the like, and The present invention relates to a packaging box formed of the packaging cardboard and a cushioning material.

Conventionally, a deformed packaging box that is made of a single paper material and can change the shape of the packaging box to a square column or a triangular column by changing the folding method, and can select the packaging box shape depending on the contents It has been proposed (Patent Document 1).

Also, by changing the folding method of a single paper material, it is possible to change to a thin box shape for packaging and a storage box shape with a deep top opening. By doing so, a storage box that can be reused for another purpose has been proposed (Patent Document 2).

In addition, multiple folding lines and multiple cutting lines are provided on a single paper material, and by folding and cutting according to the size of the package, the volume of the box changes according to the size of the package. A packaging box that can be used has been proposed (Patent Document 3).

JP, 2008-297006, A JP 2012-30827 A Japanese Utility Model Publication No. 5-54274

By the way, the deformed packaging box of Patent Document 1 only changes to two types, that is, a quadrangular prism and a triangular prism.

The storage box of Patent Document 2 is to be reused for another purpose after the use as a thin storage box is finished, and cannot be transformed into a plurality of shapes as a thin storage box, and similarly, There is a problem that there are few variations.

The packaging box of Patent Document 3 can change the volume of the box body by providing a crease line and a cutting line, but a plurality of folding lines and cutting lines are provided, and the size of the rectangular parallelepiped-shaped contents is mainly provided. It is configured to be bent and packaged at an appropriate position, and it is not possible to form a box having a plurality of predetermined shapes.

The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a single packaging cardboard that can be changed into three or more types of packaging boxes depending on the content or the application. ..

Another object of the present invention is to provide a cardboard for packaging which can change not only the volume of the packaging box but also the shape.

Another object of the present invention is to provide a packaging box and a cushioning material using the single cardboard for packaging.

The present invention, in order to solve the above problems,
First, a square cardboard is folded into two folds around a central vertical folding line (2), and only the opposing vertical edges (3) are bonded to each other. ) And the upper half (4′) of the packaging cardboard has upper and lower sides (5, 5) formed in an upward curved shape on both front and back sides, and the upward curved shape of the upper side (5, 5). And a downward curved fold line (6, 6') of line symmetry is press-formed at a corresponding position on the front and back sides of the upper side of the packaging cardboard, and the lower curved fold line (6, 6') is vertically arranged below Two left and right lateral linear folding lines (7, 8 and 7', 8') are press-formed at corresponding positions on the front and back sides, and two vertical sewing machines that divide the upper part into three in the left and right direction. Eyes (9, 10 and 9', 10') are formed at corresponding positions on the front and back from the upper side (5, 5') to the lower lateral linear fold line (8, 8'), In the lower half (4") of the cardboard, the lower side (12, 12) is formed in a downward curved shape on both the front and back sides, and the downward curved shape of the lower side (12, 12) is upward in line symmetry with the downward curved shape. Curved fold lines (13, 13') are press-formed at the corresponding positions on the front and back sides of the lower side of the packaging cardboard, and two upper and lower horizontal lateral lines are formed above the upward curved fold lines (13, 13'). Directional linear fold lines (14, 15 and 14', 15') are press-formed at corresponding positions on the front and back, and two longitudinal perforations (16, 17 and 16) that divide the lower side into three parts in the left-right direction. ', 17') are formed at the corresponding positions on the front and back sides from the lower side (12, 12) to the upper horizontal linear fold line (14, 14') of the lower half (4"). Also, horizontal perforations (18, 18') that can be divided into upper and lower halves are formed at the corresponding positions on the front and back sides in the center of the packaging cardboard, and the vertical perforations ((8') of the upper half (4') are 9, 10 and 9', 10') and the vertical perforations (16, 17 and 16', 17') of the lower half (4") are respectively connected in the vertical direction to form two vertical linear folds. It is made of cardboard for packaging provided with eye lines (19, 20 and 19', 20').

With such a configuration, by changing the folding method and the cutting position with a single packaging cardboard, the wide pillow type packaging box of FIG. 6, the narrow pillow type packaging box (28) of FIG. 7, Wide small deformation pillow type packaging boxes (27', 2 pieces) in FIG. 8, narrow small deformation pillow type packaging boxes (28', 2 pieces) in FIG. 9, rectangular parallelepiped shape packaging box (large 29 ( 11), medium 30 (FIG. 12), small 31 (FIG. 13)), triangular tubular packaging box (33) (FIG. 15), hexagonal tubular packaging box (32) (FIG. 14), two rows 2 adjacent cushioning materials (34, 35) (FIGS. 16 and 17), cross-shaped partition member (36) (FIG. 18), T-shaped partition member (37) (FIG. 19) can be formed.

Secondly, there is provided a wide pillow type packaging box formed by using the packaging cardboard (4) according to the first aspect, and a method for forming the packaging box, wherein the upper side (5, 5) and the lower side are formed. The front and back curved pieces (11, 11') formed by the directional curved fold lines (6, 6') are bent at right angles to each other in opposite directions, and the edges (5', 5', 5') are butted to each other and the two curved pieces (11, 11') are positioned horizontally in the facing direction to form a wide upper lid, and the lower side (12, 12) and the upward curved fold line are formed. The front and back curved pieces (38, 38') formed by (13, 13') are bent at right angles to each other in opposite directions, and the edges (12', 12') of the curved pieces (38, 38') are joined to each other. By arranging the two curved pieces (38, 38') in parallel with each other in the opposite direction to form a wide lower lid, and the front (A) and back (B) sides of the packaging cardboard (4) are formed. Is a wide width formed by bulging in the front-back direction according to the shapes of the upward and downward curved fold lines (6, 6'and 13, 13') of the wide upper lid and the wide lower lid. A pillow type packaging box (27) and a method for forming the packaging box (27).

According to this structure, it is possible to form a packaging box wider than the conventional pillow type packaging box in which the curved pieces are polymerized, and it is possible to appropriately store the thick contents. Further, the front surface and the back surface are each divided into three parts by the longitudinal linear fold lines (19, 20 and 19', 20') (the front surface and the back surface as a whole are divided into six parts). However, by bending the curved pieces in the opposite direction, the central surface (e, e') easily swells in the front-rear direction, and the pillow type has a hexagonal cross section (hexagonal shape as a whole) as a whole. The packaging box can be easily formed.

Thirdly, there is provided a rectangular parallelepiped packaging box formed by using the packaging cardboard (4) according to the first aspect, and a method for forming the packaging box, wherein each of the vertical portions of the upper half portion (4′) is formed. By cutting the directional perforations (9, 10 and 9', 10') to the positions of the lateral linear fold lines (7, 8 and 7', 8'), the lateral linear fold lines (7 , 8 and 7', 8') are formed with a plurality of upper lid pieces ((a), (b), (c) and (b'), (b'), (c')), The vertical perforations (16, 17 and 16', 17') of the lower half (4") are replaced by the lateral linear fold lines (14, 15 and 14') of the lower half (4"). , 15') to cut a plurality of lower lid pieces ((a), (b), on the front and back sides below the lateral linear fold lines (14, 15 and 14', 15'). (C) and (a'), (b'), (c')) are formed, and the above-mentioned front and back sides adjacent to the longitudinal double-fold line (2) centering on the vertical double-fold line (2) are formed. The front surface (C) is formed by horizontally expanding the front and back surfaces ((to), (to')) up to the vertical linear fold line (20, 20'), and the above vertical edge (3) is formed. The rear surface by horizontally expanding the front and back surfaces ((d) and (d')) up to the vertical linear fold lines (19, 19') on the front and back adjacent to the vertical end edge (3) as the center (D) is formed and is provided between the front surface (C) and the rear surface (D), and the side surfaces ((e) and (e) between the longitudinal linear fold lines (19, 20 and 19', 20') are formed. ')) and a square pillar shape with upper and lower openings are formed from the upper lid pieces ((a), (b), (c) and (a'), (b'), (c')) in the lateral direction. The upper opening is closed by bending the straight fold lines (7, 8 and 7', 8') at right angles inward, and the lower lid pieces ((a), (b), (c) and (a) '), (b'), (c')) are bent at a right angle inward from the lateral linear fold lines (14, 15 and 14', 15') of the lower half (4"). It is configured by a rectangular parallelepiped-shaped packaging box (29, 30, 31) formed by closing the lower opening and a method of forming the packaging box (29, 30, 31).

In this way, based on a single cardboard for packaging, it is possible to manufacture a rectangular parallelepiped packaging box instead of the pillow type. In addition, a packaging box (29) having a large size can be formed by setting the folding positions of the upper and lower lid pieces to the upper and lower lateral fold lines (7, 7'and 15, 15'). The upper half of the side lid piece is bent at the upper horizontal fold line (7, 7'), and the lower half is set at the upper horizontal fold line (14, 14'). A packaging box (30) can be formed, and the upper half of the upper half is the lower lateral fold line (8, 8') and the lower half is the upper lateral fold line (14, 14') makes it possible to form a packaging box (31) having a small size.

Fourthly, there is provided a polygonal cylindrical packaging box formed by using the packaging cardboard (4) according to the first aspect, and a method for forming the packaging box, wherein the upper half (4′) of the packaging box is formed. By cutting each vertical perforation (9, 10 and 9', 10') to the position of the horizontal linear fold line (7, 8 and 7', 8'), the horizontal linear fold line is formed. Forming upper lid pieces ((a), (b), (c) and (a'), (b'), (c')) on the upper and lower sides of (7, 8 and 7', 8'), The vertical perforations (16, 17 and 16', 17') of the lower half (4") are replaced by the lateral linear fold lines (14, 15 and 14') of the lower half (4"). , 15') to cut a plurality of lower lid pieces ((a), (b), on the front and back sides below the lateral linear fold lines (14, 15 and 14', 15'). (C) and (a'), (b'), (c')) are formed, and the two vertical perforations and the two subsequent vertical linear fold lines (19, 20 and 19') are formed. , 20') are divided into three longitudinal planes on the front side ((d), (e), (to)) and three longitudinal planes on the rear side ((d'), (e'), (to) ')) is the outer surface of the polygonal tubular body, and the upper lid pieces ((a), (b), (c) and (b'), (b'), (c')) are described above. The lower lid pieces ((a), (b), (c) and (b'), (b') are folded inward from the lateral linear fold lines (7, 8 and 7', 8'). , (C′)) is folded inwardly from the lateral linear fold lines (14, 15 and 14′, 15′) of the lower half (4″) to form a polygonal tube with upper and lower openings. The packaging box (32, 33) and the method for forming the packaging box.

In this way, based on a single packaging cardboard, for example, a triangular tubular packaging box (33) or a hexagonal tubular packaging box (32) can be formed as a polygon.

Fifthly, there is provided a cushioning material formed by using the packaging cardboard according to the first aspect, and a method of forming the cushioning material, wherein each of the longitudinal perforations (9, 10 and 9', 10') are cut to the positions of the lateral linear fold lines (7, 8 and 7', 8') to obtain the lateral linear fold lines (7, 8 and 7', 8') is formed with upper lid pieces ((a), (b), (c) and (a'), (b'), (c')) on the upper and lower sides, and the lower half (4") is formed. Cutting each of the vertical perforations (16, 17 and 16', 17') to the position of the horizontal linear fold line (14, 15 and 14', 15') of the lower half (4"). As a result, a plurality of lower lid pieces (((a), (b), (c) and (b'), (b'), (b') are provided on the front and back sides below the lateral linear fold line. ) Is formed, and the front and back surfaces up to the vertical linear fold line (20, 20′) on the front and back sides adjacent to the vertical double fold line (2) with the vertical double fold line (2) as the center ( (He), (he')) are horizontally spread to form a front surface (C), and the vertical direction of the front and back sides adjacent to the vertical edge (3) with the vertical edge (3) as the center. The front and back surfaces ((d) and (d')) up to the straight crease line (19, 19') are horizontally spread to form a rear surface (D), which is provided between the front surface and the rear surface. Directional linear fold lines (19, 20 and 19', 20') between the side surfaces ((e), (e')) to form a square pillar shape with upper and lower openings, and the upper lid piece is formed into the lateral linear shape. The lower lid piece is folded inward from the fold lines (7, 8 and 7', 8') and the lateral linear fold lines (14, 15 and 14', 15) of the lower half (4"). ') from inside to form a rectangular parallelepiped with upper and lower openings and at the center of the front surface (C) and the rear surface (D), the vertical folding line (2) and the vertical end edge ( 3) The cushioning material (34, 35) adjacent to the right and left triangular prisms (E, F or G, H) formed by connecting them to each other, and a method for forming the cushioning material (34, 35) It

Sixth, the packaging box according to any one of the second to fifth aspects or the packaging cardboard according to the first aspect that can form the cushioning material.

By changing the folding method and cutting position of a single cardboard for packaging in this way, at least wide and narrow pillow type packaging boxes, wide and narrow modified pillow type packaging boxes, large, medium and small size Since a rectangular parallelepiped-shaped packaging box and two types of cushioning materials can be formed, an extremely versatile cardboard for packaging can be realized.

Since the present invention is configured as described above, it is possible to form a packaging box having a plurality of shapes by changing a folding method and a cutting position with a single packaging cardboard. As a packaging box for use, it is possible to realize an extremely versatile packaging cardboard capable of selectively forming a packaging box having an appropriate shape, size, and thickness according to a delivery of various shapes and sizes.

Further, the front surface and the back surface are each divided into three by linear fold lines in the vertical direction so that a hexagonal cross section can be formed. For example, even if the cardboard for packaging is made of corrugated cardboard, it is traversed as a whole. It is possible to easily form a pillow type packaging box having a surface hexagonal shape (hexagonal shape as a whole).

Further, the present invention, based on a single packaging cardboard, it is possible to form not only a packaging box, but also a cushioning material and a partitioning member. Can be expanded.

It is a figure which shows the cardboard for packaging which concerns on this invention, (a) is a front view, (b) is a bottom view, (c) is a right side view. It is a rear perspective view of the cardboard for packaging same as the above. It is a development view of the cardboard for packaging same as the above, (a) is a development front view, (b) is a bottom view, (c) is a right side view. It is a perspective view of the upper half part in the state where the same packaging cardboard is divided into two. The same is a wide pillow type packaging box formed from cardboard for packaging, (a) is a plan view, (b) is a front view, (c) is a bottom view, and (d) is a right side view. It is a perspective view of a pillow type packaging box with the same wide width. FIG. 3 is a perspective view of a narrow pillow type packaging box formed from the same packaging cardboard. Same as above, which is a wide modified pillow type packaging box formed from cardboard for packaging, wherein (a) is a plan view, (b) is a perspective view, and (c) is a side view. Same as above, which is a narrow modified pillow type packaging box formed from cardboard for packaging, (a) is a perspective view, (b) is a plan view, and (c) is a side view. The same is a rectangular parallelepiped-shaped packaging box (large) formed from cardboard for packaging, (a) is a plan view, (b) is a front view, (c) is a left side view, (d) is a right side view, (e) ) Is a bottom view. (A)-(c) is a perspective view of the same packaging box which shows the formation process of a packaging box (large) of a rectangular parallelepiped shape same as the above. It is a rectangular parallelepiped-shaped packaging box (middle) formed from the cardboard for packaging same as the above, (a)-(c) is a perspective view of the same packaging box which shows the formation process of the above-mentioned packaging box (middle). It is a rectangular parallelepiped-shaped packaging box (small) formed from the packaging cardboard same as the above, and (a)-(c) is a perspective view of the same packaging box which shows the formation process of the above-mentioned packaging box (small). FIG. 3 is a perspective view of a hexagonal column-shaped packaging box formed from the same packaging cardboard. Same as above, which is a triangular prism-shaped packaging box formed from cardboard for packaging, and (a) and (b) are perspective views of the packaging box showing the forming process thereof. The same is a cushioning material formed from cardboard for packaging as described above, (a) is a perspective view of the process of forming the cushioning agent, and (b) is a perspective view of the cushioning material. It is a perspective view of the cushioning material formed from the cardboard for packaging same as the above. It is a perspective view of the partition member formed from the cardboard for packaging same as the above. It is a perspective view of the partition member formed from the cardboard for packaging same as the above. (A) is sectional drawing of the fold line of the cardboard for packaging same as the above, and (b) is sectional drawing of other embodiment of the same fold line.

Hereinafter, the packaging cardboard, the packaging box and the cushioning material formed by using the packaging cardboard, and the method for forming the packaging box and the cushioning material according to the present invention will be described in detail.

As shown in FIG. 3, for example, a horizontally long rectangular cardboard 1 made of corrugated cardboard (thickness is, for example, about 2 mm) is polymerized into two folds around a central vertical fold line 2 to form one vertical edge. The margin piece 3'formed in 3 is bent, an adhesive is applied to the margin piece 3', and the margin piece 3'is adhered to the facing longitudinal edges 3 and the longitudinal edges 3, 3 facing each other. The cardboard 4 for packaging shown in FIG. 1 and FIG.

The upper half portion 4'of the packaging cardboard 4 is formed on both the front and back sides (front surface A, back surface B), and the upper side 5 is formed in an upward curved shape, and the downward curved shape of the upper side 5 is line symmetrical with the upward curved shape. Curved fold lines 6 and 6 ′ are press-formed at the corresponding positions on the upper and lower sides of the packaging cardboard 4. The "corresponding position" means that the formation position on the front surface A side and the formation position on the back surface B side are the same between the front and back sides. Further, the front surface A side and the back surface B side have the same reference numeral, but the reference numerals of the members at corresponding positions on the front and back sides are represented by adding "'(dash)" only to the back surface B side. Further, in FIG. 1, up and down, left and right are defined as up and down directions and left and right directions with respect to the paper surface, and the front surface A side is defined as the front surface and the back surface B side is defined as the rear surface (or back surface).

More specifically, the downward curved fold lines 6 and 6 ′ are formed line-symmetrically downward from the left and right end points S, S of the upper side 5. The piece surrounded by the upper side 5 and the downward curved fold line 6, 6'is referred to as a curved piece 11, 11'.

Further, below the downward curved fold lines 6 and 6', the horizontal linear fold lines 7, 8 and 7', 8'that cross the packaging cardboard 4 in the left and right directions of the upper and lower lines are pressed at the corresponding positions on the front and back sides. Has been formed. Further, two vertical perforations 9, 10 and 9', 10', which divide the upper side into three substantially evenly in the left-right direction, are provided from the upper side 5 to the lower lateral linear fold line 8, 8'. It is formed at corresponding positions on the front and back.

More specifically, the front surface A side is roughly divided into the upper lid piece (a) on the left side, the upper lid piece (b) on the center part, and the upper lid piece (c) on the right side by the two vertical perforations 9 and 10. The back surface B side is divided by a uniform width, and the back surface B side is connected to the upper lid piece (a) by the two vertical perforations 9'and 10', the upper lid piece (a') and the central upper lid piece (b'). ), the upper lid piece (c′) connected to the upper lid piece (c) is substantially evenly divided.

The lower half 4 ″ of the packaging cardboard 4 has a lower side 12 formed in a downward curved shape on both front and back sides (front surface A, rear surface B), and an upward direction of a line symmetrical with the downward curved shape of the lower side 12. Curved fold lines 13 and 13' are press-formed at corresponding positions on the front and back sides of the lower side of the packaging cardboard 4.

More specifically, the upward curved fold lines 13 and 13 ′ are formed line-symmetrically upward from the left and right end points S and S of the lower side 12. The piece surrounded by the lower side 12 and the upward curved fold line 13, 13' is called a curved piece 38, 38'.

Above the upward curved fold lines 13 and 13', two horizontal lateral fold lines 14, 15 and 14', 15' in the left-right direction are provided at the corresponding positions on the front and back, and the packing cardboard 4 is placed in the left-right direction. It is press-formed so as to cross.

Further, two vertical perforations 16, 17, 16', 17', which divide the lower side into three substantially evenly in the left-right direction, are formed from the lower side 12 to the upper lateral straight line of the lower half 4". The fold lines 14 and 14' are formed at corresponding positions on the front and back sides.

More specifically, on the front surface A side, the upper lid piece (a) on the left side, the lower lid piece (b) on the center part, and the lower lid piece (c) on the right side are formed by the two vertical perforations 16 and 17. Is divided into substantially equal widths on the back surface B side by the two vertical perforations 16' and 17', the lower lid piece (a)' continuous with the lower lid piece (a), and the lower part of the central portion. The lid piece (b') and the lower lid piece (ha') connected to the lower lid piece (c) are substantially evenly divided.

Then, lateral perforations 18, 18' capable of dividing the upper and lower parts into two are formed at corresponding positions on the front and back sides in the center of the packaging cardboard 4, and the longitudinal perforations 9, 10, 9 of the upper half portion 4'are formed. Two vertical linear fold lines 19, 20 (19' on the back side) that connect the vertical perforations 16, 17 and 16', 17' of the '10' and the lower half portion 4" respectively , 20') are provided at corresponding positions on the front and back.

Further, the surface on the side of the front surface A, which is substantially equally divided into three parts by the two vertical linear fold lines 19 and 20 (the back surface side is 19' and 20'), is the left surface (vertical surface) (d). (Back surface B side is a surface (vertical surface) (d')), central surface (vertical surface) (e) (Back surface B side is a surface (vertical surface) (e)'), right surface (vertical surface) (He) (The back side is the surface (longitudinal surface) (He')). In this way, the front and back surfaces A and B as a whole are divided into three parts, that is, the front surface A side is divided into three parts and the back surface B side is divided into three parts (face (d), (e), (to) and face (d'), (E'), (e')), when the front and back surfaces A and B are opened back and forth, the respective vertical linear fold lines 19, 20 and 19', 20', and the vertical two-fold line 2, vertical It is configured such that a solid body having a hexagonal cross section (hexagonal solid body) can be easily formed with each fold line of the direction edge 3 as a boundary (fold line).

Each of the fold lines 6 and the like is obtained by pressing (forming) the surface A or the back surface B (one surface) into a concave cross section (see FIG. 20A, other fold lines are the same). , Which serves as a reference line when folding thick paper. When the fold line is formed on a corrugated cardboard or the like, as shown in FIG. 20B, two adjacent fold lines may be press-molded to form two fold lines adjacent to each other. Further, the fold line shows a state in which the front side (one side) is press-molded in the developed state of FIG. 3, but in this developed state, it is also located at the corresponding position on the back side (one side of one side) corresponding to the front side. A fold line formed by the same press molding may be provided. Further, the perforations penetrate the cardboard on both the front surface A and the back surface B, and are for cutting the cardboard.

Rectangular perforations 21 and 22 for small windows are formed on the right side of the upper half 4'of the front surface A and on the right side of the lower half 4" of the back surface B, and along the perforations 21 and 22. By cutting out and removing the cardboard inside, a part of the contents stored inside can be seen.

Next, a method of forming various packaging boxes and the like by using the packaging cardboard 4 will be described.
(1) Pillow type packaging box (see FIGS. 6 and 7)
Front and back curved pieces 11 and 11' formed by the upper side 5 and the downward curved fold lines 6 and 6'are bent at right angles to each other with the downward curved fold lines 6 and 6'as fold lines. , The end edges 5', 5'of the curved pieces 11, 11' are butted against each other and the two curved pieces 11, 11' are positioned horizontally to form the wide upper lid 23 (see FIG. 5). ..

Similarly, on the lower side, the curved pieces 38, 38' on the front and back sides formed by the lower side 12 and the upward curved fold lines 13, 13' are used as the upward curved fold lines 13, 13'. The wide lower lid 24 is formed by bending the curved pieces 38, 38 ′ at right angles in a direction opposite to each other and abutting the end edges 12 ′, 12 ′ of the curved pieces 38, 38 ′ to position the two curved pieces 38, 38 ′ horizontally. Are formed (see FIG. 5).

The front surface A and the back surface B are arranged in the front-rear direction according to the shapes of the upward curved fold lines 6 and 6′ and the downward curved fold lines 13 and 13′ of the wide upper lid 23 and the wide lower lid 24. By bulging, it is possible to produce a wide pillow type packaging box 27 having a hexagonal cross section (generally a horizontally long substantially hexagonal column shape) (see FIGS. 5 and 6).

The connection between the edges 5'and 5'of the wide upper lid 23 and the connection between the edges 12' and 12' of the wide lower lid 24 may be closed with tape or the like.

By abutting the curved edges 5', 5'and 12', 12', the central portion is pushed outward in the front and rear direction, and the surfaces (e) and (e)' bulge in the front and rear directions to form each other. A parallel surface is formed (see FIG. 5D), and the left and right surfaces (d) and (e) adjacent to it are (the back surface is the surface (d′′) and (e′)). It will form an inclined surface toward (e'). Therefore, the packaging box 27 is a pillow type packaging box having a hexagonal cross section (see FIGS. 5A and 5C).

With such a configuration, it is possible to form the pillow type packaging box 27 having a thickness of two front and back sides of the curved pieces 11, 11' and 38, 38'.

Conventionally, when forming a pillow type packaging box using corrugated paper, it was not easy to form a bulge in the front-rear direction on the front surface A and the back surface B. The cardboard 4 for packaging according to the present invention is provided with longitudinal linear fold lines 19, 20 and 19', 20' at corresponding positions on the front surface A and the back surface B, and the front surface A and the back surface B are divided into three (in the embodiment, evenly). Since the front surface A and the back surface B are flattened, the hexagonal prism shape shown in FIG. 14 can be easily formed.

By utilizing this property, the bending pieces 11, 11 ′ and the bending pieces 38, 38 ′ are bent inward from the flat state of the packaging cardboard 4, respectively. , 38' protrudes in the front-rear direction, the center surfaces (e) and (e') of the three divided surfaces easily swell in the front-rear direction. The back surface B can be easily inflated from a flat state.

In this way, the packaging cardboard 4 has the front surface A and the back surface B divided into three parts in the longitudinal direction at the longitudinal linear folding lines 19, 20 and 19', 20', that is, the longitudinal linear shape. By the fold lines 19, 20 and 19', 20' (in addition to the two vertical folding lines 2 and the vertical end edges 3 as a six-sided folding line), the plane (d), (e), (he) as a whole And (d'), (e'), and (e') are formed so that they can form six surfaces (generally divided into six), so that even if they are made of corrugated cardboard, they can be changed from the flat state to the front surface A and the back surface. B can be easily inflated to form a pillow type packaging box 27 (the same applies to FIGS. 7, 8 and 9) having a hexagonal cross section as shown in FIG.

The upper curved pieces 11, 11' are bent at a right angle in the opposite direction along the downward curved fold lines 6, 6', and the lower curved pieces 38, 38' are bent by the upward curved fold lines 13, It is also possible to form the well-known pillow type packaging box 28 shown in FIG. 7 by bending the upper and lower curved pieces 11, 11 ′ and 38, 38 ′ at a right angle in the opposite direction at 13 ′ and superposing them. Also in this packaging box 28, the vertical linear folding lines 19, 20 and 19', 20' are formed on the front surface A and the back surface B, and a hexagonal cross section (hexagonal column) is formed as a whole. As described above, since the curved pieces 11, 11 ′ and 38, 38 ′ are bent in the same manner, the surface (e) of the front surface A and the surface (e′) of the rear surface B are easily expanded in the front-back direction. The pillow-type packaging box 28 shown in FIG. 7 can be easily formed while being made of cardboard.

In this way, the packaging cardboard 4 of the present invention can form a conventional thin pillow type packaging box 28, and as shown in FIG. 6, a pillow type packaging box 27 wider than the conventional type. The width (thickness) of the pillow type packaging box can be arbitrarily selected depending on the thickness and shape of the contents.

(2) Small modified pillow type packaging box (see FIGS. 8 and 9)
The cardboard 4 for packaging is cut at the perforations 18 and 18' in the lateral direction and divided into two (see FIG. 4), and the cut portion of the perforations 18 and 18' is closed with a tape T or the like to bend each of them. By bending the pieces 11, 11' and 38, 38' in the same manner, and abutting the edges 5', 5'and 12', 12' thereof, the wide and small modified pillow type packaging shown in FIG. Two boxes 27' can be formed.

Similarly, by bending the curved pieces 11, 11 ′ and 38, 38 ′ to be overlapped with each other, it is possible to form two small-sized deformed pillow type packaging boxes 28 ′ shown in FIG. 9. ..

In this way, when the contents are small, or when the contents are small but have a width, etc., by packing the modified pillow type packaging boxes 27' and 28', the optimum size suitable for the contents is obtained. Can form a packaging box.

(3) Rectangular parallelepiped packaging box (see FIGS. 11, 12, 13, etc.)
By cutting each of the vertical perforations 9, 10 and 9', 10' of the upper half portion 4'of the packaging cardboard 4 to the position of the upper horizontal linear fold line 7, 7', A plurality of upper lid pieces (a), (b), (c) and (a)', (b)', (c') are formed on the front and back sides above the lateral linear fold lines 7, 7'( (See FIGS. 1 and 2).

Furthermore, the longitudinal perforations 16, 17 and 16', 17' of the lower half 4" of the packaging cardboard 4 are replaced by the lateral linear fold lines 15, 15' under the lower half 4". By cutting to the position of, the plurality of lower lid pieces (a), (b), (c) and (a'), (b') on the front and back sides of the lateral linear fold lines 15 and 15'. ) And (C') are formed (see FIGS. 1 and 2).

Then, with respect to the vertical two-fold line 2, the front and back surfaces (to) and (to') up to the vertical linear folding lines 20 and 20' adjacent to the vertical two-fold line 2 The front surface C is formed by unfolding horizontally.

Further, with the vertical edge 3 as the center, the front and back surfaces (d) and (d') up to the vertical linear fold lines 19 and 19' on the front and back adjacent to the vertical edge 3 are made horizontal. The back surface D is formed by unfolding (see FIG. 11).

A rectangular prism shape having upper and lower openings is provided by the side surfaces (e) and (e') provided between the front surface C and the rear surface D and between the longitudinal linear fold lines 19 and 20 and 19' and 20'. Are formed (see FIG. 11A).

Thereafter, among the upper lid pieces, the upper lid pieces (b) and (b') are bent at an angle to the inside (see FIG. 11(b)), and then the upper lid pieces (a), (a') and (c). ) And (C′) are bent inward at right angles to close the upper opening (see FIG. 11C).

Similarly, of the lower lid pieces, the lower lid pieces (b) and (b') are bent inward at right angles, and then the lower lid pieces (b), (b') and (c), (c). ') is bent at a right angle inward to close the lower opening to form a rectangular parallelepiped-shaped packaging box 29 (see FIG. 11C). The upper lid piece and the lower lid piece are closed and fixed with tape or the like.

The rectangular parallelepiped-shaped packaging box 29 formed by this method has the largest size (height T1). Hereinafter, the rectangular parallelepiped-shaped packaging box 30 having a medium size and the rectangular parallelepiped-shaped packaging having a small size are described below. The box 31 can also be formed.

(4) A rectangular parallelepiped-shaped packaging box 30 (see FIG. 12).
In the upper half 4', the longitudinal perforations 9, 10 and 9', 10' are cut to the upper lateral linear fold lines 7, 7', and in the lower half 4" the longitudinal perforations. Cut 16, 17 and 16', 17' up to the upper transverse linear fold line 14, 14'.

Then, a rectangular parallelepiped box having upper and lower openings is formed by the same method as the above (3) (see FIG. 12(a)), and in the upper half portion 4', upper lid pieces (a), (b), ( (C) and (a'), (b') and (c') are similarly bent inward from the position of the above-mentioned lateral linear fold line 7, 7', the upper opening is closed, and the lower half part is formed. In 4", the lower lid pieces (a), (b), (c) and (a'), (b'), (he') are folded inward from the positions of the lateral fold lines 14 and 14'. By closing the lower opening, a rectangular parallelepiped-shaped packaging box 30 having a medium size can be formed (see Fig. 12(c)). The upper lid piece and the lower lid piece are closed with tape or the like. Close and fix.

The height of the packaging box 30 is a height T2 (<T1) from the horizontal linear fold line 7 to the horizontal linear fold line 14, and the size thereof is medium.

(5) Small rectangular box 31 (see FIG. 13)
In the upper half 4', the longitudinal perforations 9, 10 and 9', 10' are cut to the lower lateral linear fold lines 8, 8', and in the lower half 4" the longitudinal perforations are formed. Cut 16, 17 and 16', 17' up to the upper transverse linear fold line 14, 14'.

Then, a rectangular parallelepiped box having upper and lower openings is formed by the same method as the above (3) (see FIG. 13A), and in the upper half portion 4′, upper lid pieces (a), (b), ( (C) and (a'), (b'), and (c') are similarly bent inward from the positions of the above-mentioned lateral linear fold lines 8 and 8', the upper opening is closed, and the lower half 4" In, the lower lid pieces (a), (b), (c) and (a'), (b'), (c') are folded inward from the positions of the lateral fold lines 14, 14', By closing the lower opening, it is possible to form a rectangular parallelepiped-shaped packaging box 31 having a small size (see FIG. 13C).The closing portions of the upper lid piece and the lower lid piece are closed and fixed with tape or the like. To do.

The height of the packaging box 31 is a height T3 (<T2<T1) from the lateral linear folding line 8 to the lateral linear folding line 14, and the size is small. In this way, it is possible to form the rectangular, rectangular, large, medium and small packaging boxes 29, 30 and 31 from the single packaging cardboard 4.

(6) Polygonal tubular (hexagonal tubular) packaging box (see FIG. 14)
By cutting each of the longitudinal perforations 9, 10 and 9', 10' of the upper half 4'of the packaging cardboard 4 to the position of the upper horizontal linear fold line 7, 7', Upper lid pieces (a), (b), (c) and (a'), (b'), (c') are formed on the front and back sides above the lateral linear fold lines 7, 7'(FIG. 1). , See FIG. 2).

Also, each of the vertical perforations 16, 17 and 16', 17' of the lower half 4" is cut to the position of the lateral linear fold line 15, 15' under the lower half 4". As a result, a plurality of lower lid pieces (a), (b), (c) and (a'), (b'), (c') are provided on the front and back sides below the lateral linear fold lines 15, 15'. ) Is formed (see FIGS. 1 and 2).

Then, the two vertical perforations 9, 10 and 9', 10', the vertical perforations 16, 17 and 16', 17'), and the two vertical linear fold lines 19, 20 subsequent thereto. And three vertical planes (d), (e) and (e) on the front side divided by 19' and 20', and three vertical planes (d'), (e') and (e') on the back side. ) Is an outer surface of the hexahedral cylindrical body (polygonal cylindrical body).

Then, the upper lid pieces (a), (b), (c) and (a'), (b'), (c') are folded inward from the lateral linear fold lines 7, 7', The lower lid pieces (a), (b), (c) and (a'), (b'), (c') are removed from the lateral linear fold lines 15, 15' of the lower half 4". By folding inward, it is possible to form a hexagonal tubular packaging box 32 having upper and lower openings.

The tubular packaging box 32 can be used as a packaging box having upper and lower openings by covering the outside of bottles and the like.

(7) Polygonal tubular (triangular tubular) packaging box (see FIG. 15)
As in the case of (6) above, a cylindrical body having upper and lower openings shown in FIG. 15(a) is formed, and the vertically long surfaces (he) and (he') are horizontal surfaces, and the vertically long surfaces (d) and (e) are Triangular prisms are formed by setting the horizontal planes and the vertically long planes (d') and (e') to be horizontal planes (see FIG. 15(a)), and the upper and lower lid pieces (a), ( B), (C) and (B'), (B'), and (C') are folded inward to form the triangular cylindrical packaging box 33 shown in FIG. 15B. The triangular box-shaped packaging box 33 having upper and lower openings can also be used as a packaging box for an elongated member such as a bottle.

(8) Buffer material (see FIGS. 16 and 17)
A method for forming a cushioning material 34 using the above cardboard for packaging, wherein the longitudinal perforation lines 9, 10 and 9', 10' of the upper half portion 4'are provided on the lateral linear folding lines. The upper lid pieces (a), (b), (c) and (a'), (b) are cut on the upper and lower sides of the lateral linear fold line 7, 7'by cutting to the position of 7, 7'. ') and (C) are formed.

Also, each of the vertical perforations 16, 17 and 16', 17' of the lower half 4" is cut to the position of the lateral linear fold line 15, 15' under the lower half 4". As a result, a plurality of lower lid pieces (a), (b), (c) and (a'), (b'), (c) are provided on the front and back sides below the lateral linear fold lines 15 and 15'. ') form.

The front and back surfaces (to) and (to') up to the vertical linear folding lines 20 and 20' on the front and back adjacent to the vertical two-fold line 2 are spread horizontally. Thereby, the front surface C is formed. Further, the front and back surfaces (d) and (d') up to the vertical linear fold lines 19 and 19' of the front and back adjacent to the vertical end 3 are horizontally spread. Thus, the rear surface D is formed.

Further, provided between the front surface C and the rear surface D, from the side surface (e) between the vertical linear folding lines 19 and 20 and the side surface (e') between the vertical folding lines 19' and 20'. The upper and lower lid pieces (a), (b), (c) and (b'), (b'), and (c') are formed by forming a square pillar shape with upper and lower openings (see FIG. 16(a)). By folding inward from the lateral linear fold lines 7, 7'and 15, 15', a rectangular parallelepiped having upper and lower openings is formed.

Further, the vertical two-fold lines 2 and the vertical end edges 3 located at the center of the front surface C and the rear surface D are brought closer to each other inward and connected to each other, so that the triangular prisms E and F (see FIG. b)) or the triangular prisms G and H (FIG. 17) can form the adjacent cushioning materials 34 and 35.

At this time, while keeping the front surface C in a flat state, the central longitudinal edge 3 of the rear surface D is pushed inward and the inner side is adhered to the back surface side of the front surface C, so that one side is flat (FIG. The cushioning material 34 shown in b) can be formed.

In addition, by pushing both the vertical folding lines 2 of the front surface C and the vertical end edges 3 of the rear surface D inward and adhering both inner sides to each other, both the front surface C and the rear surface D enter the inside, and the triangular prism is formed. It is possible to form the cushioning material 35 of G and H shown in FIG.

These cushioning materials 34, 35 can be used as cushioning materials for cushioning the stored items, for example, by storing them in the space between the stored items inside the packaging box and the inner wall of the packaging box.

(8) Partition member (see FIGS. 18 and 19)
By the method described in (6) above, a triangular prism-shaped packaging box 33 (see FIG. 15B) is formed, and then the center line of each surface, that is, the vertical two-fold line 2, the vertical straight line. The fold lines 19, 19' are pressed inward, joined at the central position, and the inside of each surface is bonded to form the partition member 36 having a cross-shaped cross section shown in FIG.

Further, the surfaces (e) and (d) of the partition member 36 are horizontal planes, and the pieces formed by the surfaces (e') and (e') are made to stand upright with respect to the horizontal plane. The partition member 37 having the T-shaped cross section shown can be formed. These partition members 36 and 37 can be used as partition plates for partitioning the contents in the packaging box.

Since the present invention is configured as described above, it is possible to form a packaging box having a plurality of shapes by changing a folding method and a cutting position with a single packaging cardboard 4, so that, for example, home delivery As a packaging box for stools, a packaging cardboard with extremely high versatility that can selectively form a packaging box of an appropriate shape, size, and thickness according to deliveries of various shapes and sizes is realized. Is.

Further, since the front surface A and the back surface B are each divided into three by the linear fold line in the vertical direction so that a hexagonal cross section can be formed, for example, even if the packaging cardboard is made of cardboard, As a result, a pillow type packaging box having a hexagonal cross section (hexagonal shape as a whole) can be easily formed.

Further, the present invention can form not only a packaging box but also a cushioning material and a partition member based on a single packaging cardboard 4, and is not limited to a packaging box for courier service, and its application is dramatically improved. Can be expanded to.

According to the packaging cardboard of the present invention, it is possible to form a plurality of types of packaging boxes with a single packaging cardboard, and it can be particularly suitably used as a packaging box for home delivery.

2 Vertical two-fold line 3 Vertical edge 4 Packaging cardboard 4'Upper half 4" Lower half 5 Upper side 6,6' Downward curved fold line 7,8 Horizontal straight fold line 7',8' Horizontal straight fold line 9,10 Longitudinal perforation 9',10' Longitudinal perforation 11,11' Curved piece 12 Lower side 13,13' Upward curved fold line 14,15 Horizontal straight fold line 14' , 15' Horizontal linear fold line 16, 17 Vertical perforation 16', 17' Vertical perforation 18, 18' Horizontal perforation 19, 20 Vertical linear fold line 19', 20' Vertical line Curved fold line 38, 38' Curved piece A Front surface B Rear surface a, b, c Upper lid piece (lower lid piece)
Lee', Ro', Ha' Upper lid piece (lower lid piece)
D, E, E Vertical portrait D', E', E'Vertical portrait

Claims (6)

A rectangular cardboard is a cardboard for wrapping that is overlapped in the center with a vertical fold line in the center in a double fold shape, and only the opposite vertical edges are adhered.
The upper half of the packaging cardboard, both the front and back sides, the upper side is formed in an upward curved shape, the downward curved fold line of the upward curved shape and line-symmetrical shape of the upper side of the upper side of the packaging cardboard. Press formed at the corresponding positions on the front and back,
Below the downward curved fold line, two horizontal lateral linear fold lines are formed by pressing at the corresponding positions on the front and back sides.
Also, two vertical perforations that divide the upper side into three in the left-right direction are formed at corresponding positions on the front and back sides from the upper side to the lower horizontal linear fold line.
The lower half of the packaging cardboard is formed in a downward curved shape on both the front and back sides, and the upward curved fold line of the downward curved shape and the line symmetrical shape of the lower side is the lower side of the packaging cardboard. Press formed at the corresponding positions on the front and back,
Above and above the upward curved fold line, two horizontal lateral linear fold lines are formed by pressing at the corresponding positions on the front and back sides.
Further, two vertical perforations that divide the lower side into three in the left-right direction are formed at corresponding positions on the front and back sides from the lower side to the upper horizontal linear fold line of the lower half.
In addition, lateral perforations capable of dividing the upper and lower parts into two are formed at corresponding positions on the front and back sides in the center of the packaging cardboard,
A cardboard for wrapping provided with two vertical linear fold lines that respectively connect the vertical perforations of the upper half and the vertical perforations of the lower half in the vertical direction. A wide pillow type packaging box formed using the cardboard for packaging according to claim 1.
The front and back curved pieces formed by the upper side and the downward curved fold line are bent at right angles to each other in opposite directions, and the edges of the curved pieces are abutted to each other so that the two curved pieces are horizontally arranged in the opposite direction. Form a wide top lid by positioning it,
The front and back curved pieces formed by the lower side and the upward curved fold line are bent at right angles to each other in opposite directions, and the edges of the curved pieces are abutted to each other so that the two curved pieces are horizontally arranged in the opposite direction. Forming a wide lower lid by positioning
The front and back surfaces of the packaging cardboard are of a wide pillow type formed by bulging in the front-back direction according to the shapes of the upward and downward curved fold lines of the wide upper lid and the wide lower lid. Packaging box. A rectangular parallelepiped packaging box formed using the packaging cardboard according to claim 1.
By cutting each vertical perforation of the upper half to the position of the lateral linear fold line, a plurality of upper lid pieces are formed on the upper and lower sides of the lateral linear fold line,
By cutting each of the vertical perforations of the lower half to the position of the horizontal linear fold line of the lower half, a plurality of lower lid pieces are provided on the front and back sides below the horizontal linear fold line. To form
A front surface is formed by horizontally expanding the front and back surfaces up to the vertical direction linear fold line on the front and back sides adjacent to the vertical direction two-fold line with the vertical direction two-fold line as the center,
Forming a rear surface by horizontally expanding the front and back surfaces up to the vertical direction linear fold line of the front and back sides adjacent to the vertical direction edge centering on the vertical direction edge,
Forming a square pillar shape of the upper and lower openings from the side surface between the vertical direction linear fold line provided between the front surface and the rear surface,
While closing the upper opening by bending the upper lid piece at a right angle inward from the lateral linear fold line,
A rectangular parallelepiped packaging box formed by closing the lower opening by bending the lower lid piece from the lateral linear fold line of the lower half portion inward at right angles. A polygonal tubular packaging box formed using the packaging cardboard according to claim 1,
By cutting each of the vertical perforations of the upper half to the position of the lateral linear fold line, to form an upper lid piece on the front and back of the upper side of the horizontal linear fold line,
By cutting each of the vertical perforations of the lower half to the position of the horizontal linear fold line of the lower half, a plurality of lower lid pieces are provided on the front and back sides below the horizontal linear fold line. To form
A polygonal tubular body having three longitudinally long faces on the front side and three longitudinally long faces on the rear side as outer faces, which are divided by the two longitudinal perforations and the two linear longitudinal fold lines following the perforations. To form
A polygon of upper and lower openings formed by folding the upper lid piece inward from the lateral linear folding line and folding the lower lid piece inward from the lateral linear folding line of the lower half portion. Cylindrical packaging box. A cushioning material formed by using the cardboard for packaging according to claim 1.
By cutting each of the vertical perforations of the upper half to the position of the lateral linear fold line, to form an upper lid piece on the front and back of the upper side of the horizontal linear fold line,
By cutting each of the vertical perforations of the lower half to the position of the horizontal linear fold line of the lower half, a plurality of lower lid pieces are provided on the front and back sides below the horizontal linear fold line. To form
A front surface is formed by horizontally expanding the front and back surfaces up to the vertical direction linear fold line on the front and back sides adjacent to the vertical direction two-fold line with the vertical direction two-fold line as the center,
Forming a rear surface by horizontally expanding the front and back surfaces up to the vertical direction linear fold line of the front and back sides adjacent to the vertical direction edge centering on the vertical direction edge,
Forming a square pillar shape of the upper and lower openings from the side surface between the vertical direction linear fold line provided between the front surface and the rear surface,
The upper lid piece is folded inward from the lateral linear fold line, and the lower lid piece is folded inward from the lateral linear fold line of the lower half to form a rectangular parallelepiped with upper and lower openings. ,
Further, a cushioning material in which triangular prisms are adjacent to each other formed by connecting the vertical two-fold line located at the center of the front surface and the rear surface and the vertical end edge to each other. The packaging cardboard according to claim 1, which is capable of forming the packaging box or the cushioning material according to any one of claims 2 to 5.

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