JP2012041048A - Partition material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a partition material for forming a partition of a multiple of 3 or a multiple of 4, by using one sheet.SOLUTION: A rectangular sheet is constituted of a pair of end surface partition piece parts arranged at both ends in one extending direction, and an intermediate forming part arranged between the end surface partition piece parts. The end surface partition piece parts have a locking groove. The intermediate forming part is constituted of one or a plurality of combinations of a partition part forming piece part constituted of a bottom surface forming part and a pair of side surface forming parts, and a partition wall forming piece part constituted of an inside horizontal partition wall forming part having a ridge folding line at the center and served as a horizontal partition wall of an inside partition part by being folded in two and a pair of side partition wall forming parts continuously connected in the extending direction via the ridge folding line to the side surface forming part and arranged on the right and left of the inside horizontal partition wall forming part.

Description

  The present invention relates to an improvement of a partition member that can form a partition of multiples of 3 or multiples of 4 using a single sheet.

Conventionally, in the partition of Japanese Utility Model Publication No. 57-186359, a rectangular bottom plate, a pair of side plates connected to one set of opposing sides of the bottom plate, and a pair of opposing sides of the bottom plate are connected. A set of side plates, and the set of side plates includes a central plate portion continuously provided on the bottom plate, and a central plate portion provided on both sides of the central plate portion. A plate portion having the same lateral length and a slit formed from the upper end at the boundary between these plate portions, and the other set of side plates project from the center plate portion and both sides of the upper end of the center plate portion. There is disclosed a structure including an overhanging portion that fits into the slit from above and an overhanging portion that protrudes from both lower ends of the central plate portion.
In the above configuration, a slit is provided in the plate portion along the long side of the rectangular bottom plate, and a separate auxiliary partition plate can be fitted to form a maximum of 12 partition spaces. In order to form 12 partition spaces, a separate auxiliary partition plate is necessary as described above, and a partition cannot be formed by folding one sheet. .

In addition, in the packaging box partition material disclosed in Japanese Patent Application Laid-Open No. 11-227746, four crease lines are formed in parallel with the upper and lower edges and the left and right edges of the rectangular sheet, and the upper and lower crease lines A central crease line parallel to the upper and lower crease lines is provided in the central region surrounded by the crease line, and a slot or cut line is provided on the left and right crease lines sandwiched between the upper and lower crease lines. And a fold line or cut line that bisects the area surrounded by the upper and lower fold lines in the vertical direction, and forms four types of partition walls symmetrically in the vertical and horizontal directions on the rectangular sheet. A structure in which the line of folds is a mountain fold, the crease line or cut line is a valley fold, and the adjacent partition walls sandwiching the upper and lower crease lines and the adjacent partition walls sandwiching the left and right crease lines are folded perpendicularly to each other Is disclosed.
However, in the above configuration, a separate auxiliary partition plate is not required, but only six partition spaces can be formed, and the fold portion is repelled only by folding along the fold line. There was a problem that it was difficult to keep the partition shape because it tried to return.

Japanese Utility Model Publication No. 57-186359 Japanese Patent Laid-Open No. 11-227746

  The present invention was devised in view of the above circumstances, and its main problem is that a single sheet can be used to form a multiple of 3 or a multiple of 4 and a locking means. Therefore, it is providing the partition material which can hold | maintain a partition shape.

In order to solve the above-mentioned problems, the present invention provides
In a partition material in which one rectangular sheet is bent and a plurality of three partition portions are arranged in a row and arranged in a lattice shape,
The rectangular sheet is composed of a pair of end face partition pieces provided at both ends in one extending direction, and an intermediate forming part provided between the end face partition pieces,
The end face partitioning piece portion has two locking grooves extending downward from the upper end portion in an upright posture, and three inner side portions that are divided by the locking groove and that are inside and left and right. And
The intermediate forming portion is connected in the extending direction via the inner piece and a valley fold line to form a bottom surface of the inner partition portion, and a valley fold line on the left and right of the bottom surface forming portion. A partition portion forming piece portion comprising a pair of side surface forming portions that are continuously provided to form the left and right side surfaces of the inner partition portion;
It is interposed between a pair of partition part forming piece parts spaced apart in the extending direction, and is connected in the extending direction via the bottom surface forming part and the valley fold line, and has a mountain fold line in the center. An inner horizontal partition wall forming portion that is separated from a bottom surface forming portion that is folded or connected in the extending direction and becomes a horizontal partition wall of the inner partition portion, and the side surface forming portion in the extending direction via a mountain fold line The left and right sides of the inner horizontal partition wall forming portion are connected to each other and separated from the left and right sides of the inner horizontal partition wall forming portion by a slit, and have a valley fold line at the center, and are folded in two, It consists of one or a plurality of combinations with a partition wall forming piece portion consisting of a pair of side partition wall forming portions,
The side surface forming portion connected to the left and right of the bottom surface forming portion of the first partition portion forming piece portion connected to the end face partition piece portion protrudes toward the end surface partition piece portion and is locked in the locking groove during assembly. It has a protruding piece part.
In the invention of claim 2,
A lower notch portion is formed on the side of the outer side piece that becomes the left and right of the end face partition piece part, and in contact with the inner side piece part that becomes the center,
A lower protruding piece that protrudes along the lower notch at the side forming portion of the first partition forming piece connected to the end face partition piece and is inserted into the lower notch at the time of assembly is integrally formed. It is characterized by being.

In the invention of claim 3,
In a partition material in which one rectangular sheet is bent and arranged in a lattice by arranging a plurality of four partition sections in a row,
The rectangular sheet is composed of a pair of end face partition pieces provided at both ends in one extending direction, and an intermediate forming part provided between the end face partition pieces,
Each of the end face partition pieces is composed of a pair of split end face partition pieces separated from each other on the left and right sides, and the split end face partition pieces are divided into one locking groove extending downward from the upper end portion in a standing posture and the locking grooves. Has two inner and outer pieces,
The intermediate forming portion is connected to each divided end face partition piece portion via a valley fold line in the extending direction to form a bottom surface of the inner partition portion, and a valley on the outer side in the left-right direction of the bottom surface forming portion. A partition portion forming piece portion comprising a side surface forming portion that is provided continuously through a fold line and forms a lateral side surface in the left-right direction of the inner partition portion;
Formed between a pair of partition part forming pieces spaced apart in the extending direction, connected in the extending direction via the bottom surface forming part and the valley fold line, and folded in two with a mountain fold line in the center An inner horizontal partition wall forming portion which becomes a horizontal partition wall of the inner partition portion in the left-right direction, and is connected to the side surface forming portion in the extending direction via a mountain fold line in the left-right direction of the inner horizontal partition wall forming portion. Side partition wall that is arranged on the outside and is separated from the outer side in the left-right direction of the inner horizontal partition wall forming portion by a slit and has a valley fold line at the center and is folded in two to become an outer partition wall in the left-right direction It consists of one or a plurality of combinations with a partition wall forming piece part composed of a forming part,
The side surface forming portion connected to the outer side in the left-right direction of the bottom surface forming portion of the first partition portion forming piece portion connected to the divided end surface partition piece portion protrudes toward the divided end surface partition piece portion side and the locking groove during assembly. Has a protruding piece to be locked to
The pair of left and right split end face partition pieces are spaced apart from each other at a constant interval, and the bottom face forming part of the first partition part forming piece part and the split end face partition piece parts facing left and right are arranged. In the meantime, the inner side of the bottom surface forming part of the first partition part forming piece part is connected via a valley fold line and separated from the divided end face partition part part by a slit, and extends in the extending direction at the center. A center partition wall forming portion is formed by overlapping a mountain fold line at the time of assembly to partition the left and right bottom surface forming portions, and a gap is provided between the left and right partition wall forming piece portions.
In the invention of claim 4,
A lower notch is formed on the side in contact with the inner piece on the outer piece in the left-right direction of the divided end face partition piece,
A lower protruding piece that protrudes along the lower notch at the side forming portion of the first partition forming piece connected to the divided end face partitioning piece and is inserted into the lower notch at the time of assembly is integrally formed. It is characterized by.
In the invention of claim 5,
The center partition wall forming portion is connected to the inner side of the bottom surface forming portion of the first partition portion forming piece portion via a valley fold line, and is separated from the divided end face partition piece portion by a slit. A first partition wall portion that overlaps at the time of assembly by a mountain fold line extending in the extending direction, and is connected to the inner side in the left and right direction of the pair of first partition wall portions via a valley fold line, It consists of an intermediate partition part forming piece part consisting of one or a plurality of combinations with a columnar partition forming part that is bent corresponding to the bottom face forming part and the inner horizontal partition wall forming part.
In the invention of claim 6,
The first partition wall and the column corresponding to the bottom surface forming part of the columnar partition forming part are connected to each other via a valley fold line and extended to the divided end face partition piece part side and connected to the inner part of the mountain fold line of the first partition wall part. The folded piece is provided with a folded piece portion standing in a U-shape.

In the partition material of the present invention, it is possible to form a multiple of 3 or a multiple of 4 by using one sheet, and it is possible to form a large number of partition portions with an inexpensive partition material.
Moreover, since the means for locking the folded partition structure is provided at the end in the extending direction of the partition member, the shape of the partition can be easily held until it is put in the box.

FIG. 3 is a development view of the partition member of Example 1. It is a perspective view which shows the same assembly state. It is a top view of the assembly state. It is an expanded view of a different shape of an inner horizontal partition wall forming part. It is an expanded view of the partition material of Example 2. It is an expanded view of the partition material of Example 3. It is a perspective view which shows the same assembly state. It is a top view of the assembly state. It is an expanded view of the partition material of Example 4. It is a perspective view which shows a part of the assembly state. It is a top view of the assembly state.

  Hereinafter, preferred embodiments of the partition material of the present invention will be described with reference to the drawings.

[Partition material]
The partition member 10 according to the present embodiment has a configuration in which a single rectangular sheet is bent and a plurality of three partition portions are arranged in a row and arranged in a lattice pattern.
As shown in FIG. 1, the substantially rectangular sheet-shaped blank B includes a pair of end face partition pieces 1 provided at both ends in one extending direction (the longitudinal direction of the blank), and the end face partition pieces 1, 1. It consists of an intermediate forming part 20 provided between them.

[End partition piece]
The end face partitioning piece 1 is divided into two locking grooves 2 extending downward from the upper end portion in a standing posture, a central (inner) piece 3 divided by the locking grooves 2, and left and right (outer) pieces. It consists of three pieces of the parts 4 and 4, and three partition parts are arranged in a row.

[Intermediate forming part]
The intermediate forming portion 20 is composed of one or a plurality of combinations of the partition portion forming piece portion 15 and the partition wall forming piece portion 18.
The partition part forming piece part 15 is connected to the central piece part 3 in the extending direction via the valley fold line L1 and forms a bottom face of the central partition part, and left and right sides of the bottom face forming part 11 And a pair of side surface forming portions 12 that are connected to each other via a valley fold line L1 to form the left and right side surfaces of the central partition portion.

[Partition wall forming piece]
The partition wall forming piece 18 includes an inner horizontal partition wall forming portion 16 and a pair of side partition wall forming portions 17.

[Inner horizontal partition forming part]
The inner lateral partition wall forming portion 16 is interposed between a pair of partition portion forming pieces 15 and 15 that are spaced apart in the extending direction, and extends through the bottom surface forming portion 11 and the valley fold line L1. It is connected in the outward direction and has a mountain fold line L2 at the center and is folded in two to form a horizontal partition wall of the inner partition.
FIG. 2C shows the inner side partition wall forming portion 16 ′ having a different shape.
The inner horizontal partition wall forming portion 16 'is connected to the bottom surface forming portion 11 and the valley folding line L1 in the extending direction, but unlike FIG. Are separated from each other by a bottom surface forming portion 11 and a slit S1 ′.
As a result, the inner side partition wall forming portion 16 ′ is erected vertically along the root fold line L1 at the time of assembly to become a side partition wall of the inner partition portion.
Other configurations are the same as those in FIG.

[Side wall forming part]
The side partition wall forming portion 17 is connected to the side surface forming portion 12 in the extending direction via a mountain fold line L2, and is disposed on the left and right sides of the inner side partition wall forming portion 16 and the inner side partition wall forming portion 16. Are separated from each other by a slit S1.
And since the side partition wall formation part 17 is valley-folded along the slit S1, and has the valley fold line L1 in the center, it is folded rightward along the valley fold line L1. It becomes a partition wall.
In addition, a substantially triangular notch C1 is formed at the center of the slit S1, which is in the middle of the side partition wall forming portions 17 and 17 connected in the extending direction, and the side partition wall forming portions 17 and 17 are folded in two. Has been made easier.

[First partition forming piece]
The side surface forming portion 12 connected to the left and right of the bottom surface forming portion 11 of the partition portion forming piece portion (referred to as a first partition portion forming piece portion 15 ′ for convenience of description) connected to the end face partition piece portion 1 has an end surface. It has a protruding piece 13 that protrudes toward the partition piece 1 and is locked to the locking groove 2 during assembly.
In this embodiment, in order to engage the protruding piece 13 with the locking groove 2, a notch R1 is provided at the tip of the locking groove 2, and a narrow groove R2 that engages with the notch R1 is provided at the base of the protruding piece 13. To increase the engagement force.

Further, the first partition portion forming piece portion 15 is formed with the lower notch portion 5 on the side of the outer piece portions 4 and 4 on the left and right sides of the end face partition piece portion 1 on the side in contact with the inner piece portion 3 as the center. Has been.
And the lower protrusion piece which protrudes along the said lower notch part 5 in the side surface formation part 12 of 1st partition part formation piece part 15 'connected with the end surface partition piece part 1, and penetrates into the said lower notch part 5 at the time of an assembly. The part 14 is integrally formed.

  In the present embodiment, as the intermediate forming portion 20, the first partition portion forming piece portion 15 ′ provided at both ends, the partition wall forming piece portion 18 connected to the first partition portion forming piece portion 18, and the partition wall forming piece portion 18 are interposed. It is comprised from the partition material 10 which has the partition part of (column) 3x (row) 5 (total 15) which consists of another partition wall formation piece part 18 provided (refer FIG.2 (b)).

  In the illustrated example, as the intermediate forming portion 20, a first partition portion forming piece portion 15 ′ provided at both ends, a partition wall forming piece portion 18 connected to these, and a partition connected to each partition wall forming piece portion 18. It consists of a part forming piece part 15 and a partition wall forming piece part 18 interposed between the pair of partition part forming piece parts 15.

Therefore, the end face partition piece 1 is bent upright, the left and right pieces of the partition portion forming piece 15 and the partition wall forming piece 18 are erected at right angles to the center piece, and the protruding piece 13 is locked into the locking groove. 2 so that it crosses 2 and folds into a box shape with an open top surface.
Next, the inner side partition wall forming portion 16 on the bottom surface of the partition wall forming piece 18 is folded in two so as to be compressed so as to be compressed from both sides in the extending direction, and the side partition wall forming portion 17 is The partition wall can be formed by folding and overlapping and projecting outward (see FIG. 2).

In order to further increase the number of partition portions, the partition portion forming piece portion 15 and the partition wall forming piece portion 18 may be added.
The partition member 10 shown in FIG. 3 has a structure having (column) 3 × (row) 6 (18 in total) partition portions.

  That is, the intermediate forming portion 20 has the partition wall forming piece portion 18 disposed in the center, the partition portion forming piece portion 15 and the partition wall forming piece portion 18 are provided in order, and the partition wall forming piece portion 18 is provided with a first partition. The part forming piece 15 ′ is provided.

  Accordingly, the intermediate forming portion 20 has the partition wall forming piece portion 18 or the partition portion forming piece portion 15 arranged at the center thereof, and the partition wall forming piece portions 18 and the partition portion forming piece portions 15 are alternately arranged to be end portions. May be arranged so as to be a first partition portion forming piece portion 15 ′, which is one of the partition portion forming piece portions 15, so that a multiple of 3 can be easily formed.

The partition member 10 shown in FIGS. 4 to 5 has a structure having four partition portions in one row.
In this case, the end face partition piece portion is composed of a pair of divided end face partition piece portions 1A, 1B spaced apart from each other on the left and right sides. The center partition wall forming portion 30 is interposed in the middle, and the partition portion is composed of four.

[Divided end face partition piece]
In other words, each of the end face partition pieces is divided into a pair of divided end face partition pieces 1A and 1B which are spaced apart from each other with a certain gap.
The divided end face partitioning piece portions 1A and 1B are each composed of one locking groove 2 extending downward from the upper end portion in an upright position, an inner piece portion 3 divided by the locking groove 2 and an outer piece portion 4. Have one.

The intermediate forming portion 20 is composed of one or a plurality of combinations of a partition portion forming piece portion 15 ′ and a partition wall forming piece portion 18 that are disposed apart from each other on the left and right.
The first partition portion forming piece portion 15 ′ connected to the divided end face partition piece portions 1A and 1B is connected to the split end face partition piece portions 1A and 1B in the extending direction via the valley fold line L1 and A bottom surface forming portion 11 ′ that forms the bottom surface, and a side surface formation that forms a laterally outer side surface of the inner partition portion that is connected to the outer side in the left and right direction of the bottom surface forming portion 11 ′ via a valley fold line L1. Part 12 '.

  Further, the intermediate forming portion 20 is formed between a pair of partition portion forming piece portions 15 that are spaced apart in the extending direction, and is connected in the extending direction via the bottom surface forming portion 11 and the valley fold line L1. An inner horizontal partition wall forming portion 16 which is folded in half with a mountain fold line L2 in the center and serves as a horizontal partition wall of the inner partition portion in the left-right direction, and extends to the side surface forming portion 12 ′ via the mountain fold line L2. Connected in the outgoing direction and disposed outside the inner horizontal partition wall forming portion 16 in the left-right direction and separated from the outer side in the left-right direction of the inner horizontal partition wall forming portion 16 by a slit S2 and having a valley fold line L1 in the center. A partition wall forming piece portion 18 including a side partition wall forming portion 17 that is folded in half and serves as an outer partition wall in the left-right direction is provided.

  The side surface forming portion 12 connected to the outer side in the left-right direction of the bottom surface forming portion 11 of the first partition portion forming piece portion 15 ′ connected to the divided end surface partition piece portions 1A, 1B includes the divided end surface partition piece portions 1A, 1B. It has a protruding piece 13 that protrudes to the side and is locked to the locking groove 2 during assembly.

The pair of left and right split end face partition pieces 1A and 1B are spaced apart from each other by a constant distance between the inner pieces 3 and form the bottom surface of the first partition forming piece 15 'facing left and right. Between the portion 11 and the divided end surface partition piece portions 1A and 1B, the inner side of the bottom surface forming portion 11 of the first partition portion forming piece portion 15 ′ is connected via a valley fold line L1 and divided end surface partition pieces. The part 1A and 1B are separated by a slit S2, and a center fold wall forming part 30 is formed that overlaps at the time of assembly by a fold line L2 extending in the extending direction at the center to partition the left and right bottom face forming parts.
In addition, a gap C2 is provided between the left and right partition wall forming pieces 18, 18.

  In the case of the illustrated example, the intermediate forming portion 20 is a combination of a first partition portion forming piece portion 15 ′ and a single partition wall forming piece portion 18 interposed between the first partition portion forming piece portions 15 ′. Thus, (column) 4 × (row) 4 (total 16) partition portions are formed (see FIG. 5B).

  The center partition wall forming portion 30 is connected to the inner side of the bottom surface forming portion 11 of the first partition portion forming piece portion 15 ′ via the valley fold line L1, and between the divided end face partition piece portions 1A and 1B. It has the 1st partition wall part 31 which isolate | separates by the slit S3 and overlaps at the time of an assembly with the mountain fold line L2 extended in the extending direction at the center, and partitions off the left-right direction.

Accordingly, the split end face partition piece portions 1A, 1B are bent upright, and the outer pieces of the partition portion forming piece portion 15 and the partition wall forming piece portion 18 are erected at right angles to the horizontally disposed inner pieces, The protruding piece 13 is fitted so as to intersect the locking groove 2 and is folded into a box shape having an open upper surface.
And by compressing from right and left, the said 1st partition wall part 31 is folded in two and overlaps, and a front-end | tip protrudes from between division | segmentation end surface partition piece parts 1A and 1B.

  Next, the inner side partition wall forming portion 16 on the bottom surface of the partition wall forming piece 18 is folded in two so as to be compressed so as to be compressed from both sides in the extending direction. The partition wall can be formed by folding and overlapping to project outward (see FIG. 5).

The partition member 1 shown in FIGS. 6 to 8 is formed with (column) 5 × (row) 4 (total 20) partition portions (see FIG. 8).
That is, the partition material 1 of the present embodiment shows a configuration in which the center partition wall forming portion 30 is different from that of the partition material 1 of the second embodiment.
Since other configurations are the same as those in the second embodiment, the description thereof is omitted.

The center partition wall forming part 30 is composed of a combination of a first partition wall part 31 and a tandem partition forming part 32.
The first partition wall portion 31 is connected to the inner side of the bottom surface forming portion 11 of the first partition portion forming piece portion 15 ′ via the valley fold line L1, and between the divided end face partition piece portions 1A and 1B. It consists of the structure which is separated by the slit S4 and overlaps at the time of assembly by the mountain fold line L2 which extends in the extending direction at the center and partitions the left and right direction.

  The columnar partition forming portion 32 is provided in a pair of left and right with the first partition wall portion 31 spaced left and right, and is formed in a strip shape on the inner side in the left-right direction of the pair of first partition wall portions 31 via a valley fold line L1. A folding line is formed corresponding to the bottom surface forming part 11 of the first partition part forming piece part 15 ′ provided in a row and arranged in the left-right direction, and the inner horizontal partition wall forming part 16 of the partition wall forming piece part 18. Is formed.

  Moreover, it has the piece 41 corresponding to the bottom face formation part 11 of the 1st partition wall part 31 and the parallel partition formation part 32, and the piece 42 corresponding to the inner side horizontal partition wall formation part 16, and is connected via the valley fold line L1. A folded piece portion 43 is provided on a piece that extends toward the divided end face partition piece portion 1A or 1B and is connected to the inner piece of the mountain fold line L2 of the first partition wall portion 31.

The folded piece 43 has a mountain fold line L2 provided on the extension of the left and right valley fold lines L1 of the piece 41, and a valley fold line L1 that stands up at a right angle to the piece 41. It has a slit S4 formed in the middle of the piece inside the wall 31 and an inclined valley fold line L1 from the end of the slit S4 to the corner of the piece 41.
Thereby, a partition can be formed by folding it upright.
Since other configurations are the same as those in the above embodiment, the description thereof is omitted.

In the case of the above configuration as well, a large number of partitions can be formed by repeating similar combinations of the intermediate forming portions.
In the present embodiment, the case where the vertical and horizontal lengths of the partitioning portions are set to substantially the same length (substantially square in plan view) is illustrated, but the vertical and horizontal lengths of the partitioning portions are different, and the rectangular and vertical and horizontal plan views are rectangular. It may be.
In addition, the present invention is not limited to the above-described embodiments. In short, various design changes can be made without changing the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 End surface partition piece part 1A, 1B Division | segmentation end surface partition piece part 2 Locking groove 3 Center (inner side) piece part 4 Left and right (outer side) piece part 10 Partition material 11 Bottom face formation part 12 Side surface formation part 13 Projection piece part 14 Lower part Projection piece 15 Partition formation piece 15 ′ First partition formation piece 16 Inner horizontal partition wall formation 17 Side partition wall formation 18 Partition wall formation piece 20 Intermediate formation 30 Center partition wall formation 31 1st partition wall part 32 Column partition formation part L1 Valley fold line L2 Mountain fold line S1-S4 Slit C1 Notch C2 Space | gap

Claims (6)

In a partition material in which one rectangular sheet is bent and a plurality of three partition portions are arranged in a row and arranged in a lattice shape,
The rectangular sheet is composed of a pair of end face partition pieces provided at both ends in one extending direction, and an intermediate forming part provided between the end face partition pieces,
The end face partitioning piece portion has two locking grooves extending downward from the upper end portion in an upright posture, and three inner side portions that are divided by the locking groove and that are inside and left and right. And
The intermediate forming portion is connected in the extending direction via the inner piece and a valley fold line to form a bottom surface of the inner partition portion, and a valley fold line on the left and right of the bottom surface forming portion. A partition portion forming piece portion comprising a pair of side surface forming portions that are continuously provided to form the left and right side surfaces of the inner partition portion;
It is interposed between a pair of partition part forming piece parts spaced apart in the extending direction, and is connected in the extending direction via the bottom surface forming part and the valley fold line, and has a mountain fold line in the center. An inner lateral partition wall forming portion which is folded or connected to the bottom surface forming portion connected in the extending direction and becomes a lateral partition wall of the inner partition portion;
The side surface forming portion is connected in the extending direction via a mountain fold line, and is disposed on the left and right sides of the inner horizontal partition wall forming portion, and is separated from the left and right sides of the inner horizontal partition wall forming portion by a slit, and a valley fold line in the center. Comprising one or a plurality of combinations with a partition wall forming piece portion formed of a pair of side partition wall forming portions that are folded in half and become left and right outer partition walls,
The side surface forming portion connected to the left and right of the bottom surface forming portion of the first partition portion forming piece portion connected to the end face partition piece portion protrudes toward the end surface partition piece portion and is locked in the locking groove during assembly. A partition material having a protruding piece portion. A lower notch is formed on the side of the outer side that is the left and right of the end face partition piece, on the side that contacts the inner side that is the center,
A lower protruding piece that protrudes along the lower notch at the side forming portion of the first partition forming piece connected to the end face partition piece and is inserted into the lower notch at the time of assembly is integrally formed. The partition material according to claim 1, wherein: In a partition material in which one rectangular sheet is bent and arranged in a lattice by arranging a plurality of four partition sections in a row,
The rectangular sheet is composed of a pair of end face partition pieces provided at both ends in one extending direction, and an intermediate forming part provided between the end face partition pieces,
Each of the end face partition pieces is composed of a pair of split end face partition pieces separated from each other on the left and right sides, and the split end face partition pieces are divided into one locking groove extending downward from the upper end portion in a standing posture and the locking grooves. Has two inner and outer pieces,
The intermediate forming portion is connected to each divided end face partition piece portion via a valley fold line in the extending direction to form a bottom surface of the inner partition portion, and a valley on the outer side in the left-right direction of the bottom surface forming portion. A partition portion forming piece portion comprising a side surface forming portion that is provided continuously through a fold line and forms a lateral side surface in the left-right direction of the inner partition portion;
Formed between a pair of partition part forming pieces spaced apart in the extending direction, connected in the extending direction via the bottom surface forming part and the valley fold line, and folded in two with a mountain fold line in the center An inner horizontal partition wall forming portion which becomes a horizontal partition wall of the inner partition portion in the left-right direction, and is connected to the side surface forming portion in the extending direction via a mountain fold line in the left-right direction of the inner horizontal partition wall forming portion. Side partition wall that is arranged on the outside and is separated from the outer side in the left-right direction of the inner horizontal partition wall forming portion by a slit and has a valley fold line at the center and is folded in two to become an outer partition wall in the left-right direction It consists of one or a plurality of combinations with a partition wall forming piece part composed of a forming part,
The side surface forming portion connected to the outer side in the left-right direction of the bottom surface forming portion of the first partition portion forming piece portion connected to the divided end surface partition piece portion protrudes toward the divided end surface partition piece portion side and the locking groove during assembly. Has a protruding piece to be locked to
The pair of left and right split end face partition pieces are spaced apart from each other at a constant interval, and the bottom face forming part of the first partition part forming piece part and the split end face partition piece parts facing left and right are arranged. In the meantime, the inner side of the bottom surface forming part of the first partition part forming piece part is connected via a valley fold line and separated from the divided end face partition part part by a slit, and extends in the extending direction at the center. A partition material characterized by forming a center partition wall forming portion that divides between left and right bottom surface forming portions by assembling with a mountain fold line, and forming a gap between left and right partition wall forming piece portions. A lower notch is formed on the side in contact with the inner piece on the outer piece in the left-right direction of the split end face partition piece,
A lower protruding piece that protrudes along the lower notch at the side forming portion of the first partition forming piece connected to the divided end face partitioning piece and is inserted into the lower notch at the time of assembly is integrally formed. The partition material according to claim 3, wherein:   The center partition wall forming portion is connected to the inner side of the bottom surface forming portion of the first partition portion forming piece portion via a valley fold line, separated from the divided end face partition piece portion by a slit, and extended in the center. A first partition wall part that overlaps at the time of assembly by a mountain fold line extending in the outgoing direction, and a pair of first partition wall parts that are connected to the inner side in the left-right direction via a valley fold line, the left and right bottom surfaces 5. The intermediate partition part forming piece part consisting of one or a plurality of combinations with a column partition forming part that is bent corresponding to the forming part and the inner horizontal partition wall forming part. Partition material.   A piece corresponding to the first partition wall part and the bottom face forming part of the tandem partition forming part is connected via a valley fold line and is extended to the divided end part partition piece part side and connected to a piece inside the mountain fold line of the first partition wall part. The partition member according to claim 5, wherein a folded piece portion standing in a U-shape is provided on the piece.

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