JP2003002327A - Beam member and pallet using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a position of a beam member freely changeable, enable a top plate to be inhibited from being deformed by an offset load, and allow easy performance of assembling work including water-repellent finish, while increasing the strength of jointing with the top plate or a bottom plate and achieving weight reduction. SOLUTION: The beam member 4 is equipped with plate parts P1-P20, which are connected together via folding margin parts B1-B20, and cut grooves C1-C8. The margin parts B1-B20 are folded at a right angle, and the plate parts P1-P20, corresponding to the cut grooves C1-C8, are inserted and assembled in a box- body shape, so as to constitute the beam member 4. The beam members 4 are arranged between the rectangular top plate and the rectangular bottom plate, and joined to one another, in order to constitute a pallet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet used for transporting and storing loads and the like, and a girder member used for the pallet.

[0002]

2. Description of the Related Art In recent years, in the fields such as packaging and logistics, from the viewpoint of protection of the global environment and reuse of limited resources, strict regulations have been placed on "restricting acceptance of imported products using wooden pallets that cannot be recycled". There are some countries that provide Wooden pallets are indispensable for the transportation of products, but from the perspective of protecting the natural environment, they are a limited consumption of forest resources, and in view of increasing international public opinion,
It is definitely in the direction of restricted use. In this respect,
Pallets made of corrugated cardboard are not only lightweight and have high quality, but also products that emphasize natural environment protection.
It is getting attention.

A conventional corrugated board pallet is constructed by interposing a plurality of cylindrical paper tubes between a rectangular top board and a bottom board made of corrugated board so that their axes are along the load direction. What has been done is known. On the lower surface of the top plate and the upper surface of the bottom plate, there are provided standing portions formed by cutting a part of the corrugated board and bending the corrugated board in a direction substantially perpendicular to the plate surface. By inserting and adhering to the inside, reliable fixing is achieved. Since such a standing portion is provided, since the paper tube has a small area on the upper and lower surfaces, sufficient bonding strength cannot be achieved by bonding only at this portion, and there are obstacles such as girders. This is because it may occur.

In addition to the above, as a girder member of a conventional corrugated board pallet, there are a square tube type supporting a top plate and a bottom plate by opposing surfaces of a square tube, and a laminated type in which a plurality of flat plates are stacked in a load direction. Things are known.

[0005]

However, in the conventional pallet using the paper tube as the girder member, since the area of the upper and lower surfaces (joint surface) of the paper tube is small as described above, the space between the paper tube and the paper tube is small. The distance becomes relatively large. Therefore, if an unbalanced load acts on a portion of the top surface of the top plate (the surface on which the article is placed) corresponding to the space between the paper tubes (for example, the weight is relatively large, There is a problem that the top plate may be deformed when an article having a small contact area is placed on a portion of the top surface of the top plate corresponding to the space between the paper tubes. As a countermeasure for this, it is conceivable to arrange a large number of paper tubes at a short pitch, but there is a problem such as an increase in weight and an increase in the number of parts required for assembly work and cost. Is not enough.

Further, in order to obtain a sufficient joint strength, it is necessary to adopt a structure in which the above-mentioned standing portion is inserted into and bonded to the inside of the paper tube. When changing the number, it is necessary to change the structures of the top plate and the bottom plate, and there is a problem that it may not be possible to flexibly meet user needs.

In addition, from the viewpoint of improving the water resistance, when the water repellent film is attached to the surface of the pallet, there is a problem that the above-mentioned standing portion and the like become an obstacle and the work is not easy.

On the other hand, in the conventional pallet using the square-tube type girder member, since the inside of the girder member is hollow, the load bearing capacity of the girder member is not sufficient. If a corrugated board material having high strength is used as the corrugated board forming the rectangular tube-shaped girder member, the load bearing capacity of the girder member can be improved, but if a corrugated board material having high strength is used, a problem such as an increase in cost occurs. , Is not a sufficient solution.

Further, in the conventional pallet using the laminated type girder member, since the area of the joint surface with the top plate can be increased, deformation of the top plate due to an unbalanced load can be prevented, but flat plates are laminated. Since the process is required, the assembly work is extremely complicated.

The present invention has been made in view of the above points, and an object of the present invention is to suppress the deformation of the top plate due to an unbalanced load, to freely change the installation position of the girder member, and to perform water repellent processing. An object of the present invention is to provide a girder member and a pallet using the girder member, which can realize an easy assembling work including the above and can obtain sufficient load resistance without using a corrugated board material having high strength.

[0011]

In order to facilitate understanding, in this section, each constituent element of the present invention will be described by attaching a typical reference numeral shown in the drawings of the embodiments.
The configurations or the respective constituent features of the present invention are not limited to those constrained by these reference signs.

In order to achieve the above-mentioned object, the girder member (4) according to the present invention is a corrugated cardboard girder member having a substantially parallelepiped outer shape, and has a substantially rectangular first plate portion (P1). When,
The first folding margin portion (B) is provided on one vertical side of the first plate portion (P1).
The second plate portion (P2) having a substantially rectangular shape whose one vertical side is connected via 1) and the second folding margin portion (B2) on the other vertical side of the second plate portion (P2). A substantially rectangular third plate portion (P3) whose one vertical side is connected through the third plate portion (P3).
3) The one vertical side is connected to the other vertical side via the third folding margin (B3) and the first plate portion (P1)
Of the substantially rectangular fourth plate portion (P4) in which the other vertical side is connected to the other vertical side of the other through the fourth folding margin portion (B4), and one of the first plate portion (P1). A substantially rectangular fifth plate portion (P5) having one lateral side connected to the lateral side via a fifth folding portion (B5) and one lateral side of the second plate portion (P2). Sixth
A substantially rectangular sixth plate portion (P6) whose one lateral side is connected via a folding margin portion (B6), and a seventh folding margin portion on one lateral side of the third plate portion (P3). A substantially rectangular seventh plate portion (P7) whose one lateral side is connected via (B7), and an eighth folding margin portion (B8) on one lateral side of the fourth plate portion (P4). A substantially rectangular eighth plate portion (P8) having one lateral side thereof connected to the other lateral side of the fifth plate portion (P5) by a ninth
A substantially rectangular ninth plate portion (P9) whose one lateral side is connected via a folding margin portion (B9) and a tenth folding margin portion on the other lateral side of the sixth plate portion (P6). A substantially rectangular tenth plate portion (P10) having one lateral side connected through (B10)
And a substantially rectangular eleventh plate portion (P11) whose one horizontal side is connected to the other horizontal side of the seventh plate portion (P7) via an eleventh folding margin portion (B11), and A substantially rectangular twelfth plate part (P12) in which one lateral side is connected to the other lateral side of the eighth plate part (P8) via a twelfth folding margin part (B12).
And the ninth plate portion (P9) so as not to reach the ninth folding portion (B9) from the other lateral side of the ninth plate portion (P9).
Is formed substantially parallel to the vertical side of the tenth plate portion (P10).
And the first kerf (C) into which the twelfth plate (P12) is inserted.
1) and the sixth plate so as not to pass from the sixth folding part (B6) through the tenth folding part (B10) to reach the other lateral side of the tenth plate part (P10). A second kerf portion (C2) which is formed substantially parallel to the vertical sides of the portion (P6) and the tenth plate portion (P10) and into which the ninth plate portion (P9) and the eleventh plate portion (P11) are inserted. And the eleventh plate portion (P11)
Is formed substantially parallel to the vertical side of the eleventh plate part (P11) so as not to reach the eleventh folding margin part (B11) from the other lateral side of the tenth plate part (P10) and the twelfth plate part (P10). The third kerf portion (C3) into which the plate portion (P12) is inserted and the twelfth fold portion (B12) from the eighth fold portion (B8) are passed to pass through the twelfth plate portion (P12). The ninth plate portion (P9) and the eleventh plate portion are formed substantially parallel to the vertical sides of the eighth plate portion (P8) and the twelfth plate portion (P12) so as not to reach the other horizontal side. (P11) is inserted into the fourth kerf (C4).

In the girder member (4) according to the present invention, one side of the first plate (P1) is connected to the other side of the first plate (P1) via a thirteenth folding margin (B13). The substantially rectangular shaped thirteenth plate portion (P13) and the other lateral side of the second plate portion (P2) to which one lateral side is connected via a fourteenth folding part (B14). Rectangular 14th plate part (P14)
And a substantially rectangular fifteenth plate part (P15) having one lateral side connected to the other lateral side of the third plate part (P3) via a fifteenth folding part (B15), A substantially rectangular sixteenth plate portion (P16) in which one of the other lateral sides of the fourth plate portion (P4) is connected via a sixteenth folding margin portion (B16).
And a substantially rectangular seventeenth plate portion (P17) whose one lateral side is connected to the other lateral side of the thirteenth plate portion (P13) via a seventeenth folding part (B17), 14th plate (P
14) which is substantially rectangular in shape and has one lateral side connected to the other lateral side via the eighteenth folding margin (B18).
18) and a substantially rectangular nineteenth plate portion (P19) whose one lateral side is connected to the other lateral side of the fifteenth plate portion (P15) through a nineteenth folding margin portion (B19). A substantially rectangular twentieth plate portion (P20) whose one lateral side is connected to the other lateral side of the sixteenth plate portion (P16) via a twentieth folding margin portion (B20); The tenth plate portion (P10) is formed substantially parallel to the vertical side of the seventeenth plate portion (P17) from the other horizontal side to the seventeenth folding portion (B17). ) And the twelfth plate portion (P12) are inserted into the fifth kerf portion (C5), and the fourteenth folding margin portion (B1).
4) passing through the eighteenth folding section (B18) to reach the other lateral side of the eighteenth plate section (P18).
The fourteenth plate portion (P14) and the eighteenth plate portion (P18) are formed substantially parallel to the vertical sides of the seventeenth plate portion (P17) and the nineteenth plate portion (P17).
A sixth kerf (C6) into which the plate (P19) is inserted, and the nineteenth plate so as to extend from the other lateral side of the nineteenth plate (P19) to the nineteenth folding margin (B19). (P19)
Is formed substantially parallel to the vertical side of the tenth plate portion (P10).
And the seventh kerf (C) into which the twelfth plate (P12) is inserted.
7) and the sixteenth plate part (B16) so as to pass through the twentieth plate part (B20) and reach the other lateral side of the twentieth plate part (P20). P16) and an eighth kerf (C8) formed substantially parallel to the vertical sides of the twentieth plate (P20) and into which the seventeenth plate (P17) and the nineteenth plate (P19) are inserted. Preferably.

In the girder member (4) according to the present invention, one and the other of the plate portions adjacent to each other may be integrally formed with each other via a folding margin portion, or may be separated from each other. You may make it connect using gluing or other connecting means. In this case, a glue margin portion or a joint portion (in the present invention, collectively referred to as "glue margin portion") is provided on either one or the other of the plate portions adjacent to each other or both of them. The glue margin portions may be joined to the corresponding plate portions, or the glue margin portions may be joined to each other. Further, instead of providing such an integral glue margin portion, for example, an independently constituted glue margin portion having a substantially L-shaped cross section is provided, and a pair of plate portions are respectively provided with the glue margin portion. You may make it connect by joining to.

In the girder member (4) according to the present invention, at least one of the first plate part to the twentieth plate part (P1 to P20) has an opening or notch for fixing the outer box (6). Parts (5, 8) can be provided.

In order to achieve the above-mentioned object, the pallet (1) according to the present invention is a pallet using the girder member (4) according to the present invention, which includes a top plate (2) and a bottom plate ( 3) and a plurality of the girder members (4) that are respectively joined and fixed to the lower surface of the top plate and the upper surface of the bottom plate so that the top plate and the bottom plate are held substantially parallel to each other. It

In the girder member (4) according to the present invention, the wall portion (for convenience, referred to as "lower plate") formed in the shape of a substantially rectangular plate constituted by the fifth to eighth plate portions, and the thirteenth to thirteenth portions. The first to the substantially rectangular plate-shaped wall portions configured by the sixteenth plate portion (for convenience, referred to as “upper plate”) are arranged in a rectangular shape.
A wall portion configured by the fourth plate portion (for convenience, referred to as a “side plate”) and a wall portion formed in a substantially cross shape configured by the ninth to twelfth and seventeenth to twentieth plate portions (for convenience, “ Inner plate "
Said) and supported by. That is, since the upper plate and the lower plate are supported by the side plate composed of the four plate parts and the inner plate composed of the eight plate parts, a high load resistance can be realized in the vertical direction. Further, since the deformation of the side plate is suppressed by the inner plate, it is possible to realize high load resistance against a load in an oblique direction. Of course, the upper plate and the lower plate may be used upside down.

Further, by simply enlarging the lateral sides of the respective plate portions, it is possible to secure a sufficient joint area with the top plate or the bottom plate which constitutes the pallet without significantly increasing the weight as a whole. Therefore, without adopting a special structure for improving the bonding strength with a top plate or the like as in the past,
It is possible to realize sufficient bonding strength. In addition, along with this, the positions of the girder members can be arbitrarily selected without changing the configuration of the top plate or the like that constitutes the pallet, and the distance between the girder members can be increased without increasing the number of girder members. Since it can be shortened, it is possible to sufficiently suppress the deformation of the top plate due to an unbalanced load. Further, the work of attaching the water repellent film becomes easy.

In the present invention, the term "corrugated board" is not limited to the one made of paper, but includes those made of paper-like products such as plastic sheet materials and laminating materials alone or in combination. Also, "substantially rectangular"
The term “includes a rectangle”, and the term “rectangle” refers to a quadrangle whose corners are right angles, including a square.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view showing the overall structure of a corrugated board pallet according to the embodiment of the present invention. Pallet 1
As shown in the figure, is provided with a top plate 2, a bottom plate 3, and a plurality of girder members 4.

The top plate 2 and the bottom plate 3 are cardboard plates formed in a substantially rectangular shape. As the corrugated board in this embodiment, a corrugated sheet formed by interposing a corrugated corrugated sheet between a pair of flat sheets made of paper and adhering the corrugated sheets to each other with an adhesive is used. The corrugated board may have other configurations, such as a single flat sheet and a single corrugated sheet bonded together, or a plurality of flat sheets and multiple corrugated sheets alternately laminated. You may use. When using multiple corrugated sheets, use either corrugated sheets arranged so that the wave forming directions are orthogonal to each other or those arranged so that they are in the same direction as each other. May be. Moreover, you may use what laminated | stacked the several corrugated board board comprised as mentioned above.

The material of the flat sheet and the corrugated sheet which form the corrugated board is not limited to paper, but one or both of them are similar products other than paper, for example, plastic sheets or laminated sheets. May be used.

A plurality of girder members 4 are interposed between the top plate 2 and the bottom plate 3 so that they are held substantially parallel to each other,
The lower surface of the top plate 2 and the upper surface (upper plate) of the girder member 4 and the upper surface of the bottom plate 3 and the lower surface (lower plate) of the girder member 4 are bonded and fixed with an adhesive. The girder member 4 is a box body having a substantially parallelepiped shape, and the details will be described later.

In this embodiment, 3 × 3 = 9 girder members 4 are arranged at substantially equal intervals, and a fork of a forklift or the like is inserted between the girder members 4 and adjacent girder members 4. A fork insertion part is formed. The number of the girder members 4 may be 9 or less, or 9 or more, depending on the relationship between the dimensions of the top plate 2 and the bottom plate 3 and the withstand load. Further, the plurality of girder members 4 may be arranged adjacent to each other (corresponding side surfaces (side plates) are in close contact with each other) provided that the fork insertion portion is properly formed. Further, in this embodiment, the plurality of girder members 4 have the same configuration, but different sizes or different sizes may be provided, provided that the dimensions in the vertical direction (height direction) are the same. The girder members having different structures may be mixed and used.
If necessary, a reinforcing material such as a paper tube may be additionally provided between the top plate 2 and the bottom plate 3. Further, the top plate 2 or the bottom plate 3 and the girder member 4 are bonded and fixed to each other by using an adhesive in this embodiment.
Alternatively, separately from this, other connecting means such as a staple or a binding band may be used to join them.

Next, details of the girder member 4 will be described with reference to the development view shown in FIG. This girder member 4 is a top plate 2
Alternatively, by appropriately cutting and assembling a corrugated board similar to that described for the bottom plate 3, the external appearance is a substantially parallelepiped shape, and a substantially cross-shaped reinforcing portion is arranged inside. In the following description, the wall portion forming the side surface of the girder member 4 along the load direction is the “side plate”, the wall portion forming the upper surface (joint surface with the top plate 2) is the “upper plate”, and the lower surface (bottom plate). The wall portion forming the joint surface (3) may be referred to as the "lower plate", and the internal reinforcing portion may be referred to as the "inner plate".

The girder member 4 is formed by cutting a single corrugated board as shown in FIG. 2, and is provided with first to twentieth plate portions P1 to P20 each formed in a substantially rectangular shape. ing. Vertical sides of the first plate portion P1 and the second plate portion P2 are connected to each other via a first folding margin portion B1, and the second plate portion P2 and the third plate portion P3 are second folded with vertical sides thereof mutually. The third plate portion P3 and the fourth plate portion P4 are connected to each other through vertical margins B3 via the margin portion B2. On the vertical side of the first plate portion P1 opposite to the second plate portion P2, a substantially trapezoidal glue margin M is integrally provided via a fourth folding margin B4. Therefore, the vertical margin on the side opposite to the second plate portion P2 among the vertical sides of the first plate portion P1 is the fourth by the glue margin portion M.
The vertical side of the plate portion P4 is connected to the vertical side opposite to the third plate portion P3.

The first plate portion P1 and the fifth plate portion P5 are connected to each other at their lateral sides through a fifth folding margin portion B5, and the second plate portion P2.
The sixth plate portion P6 and the sixth plate portion P6 are connected to each other at their lateral sides through the sixth folding margin portion B6, and the third plate portion P3 and the seventh plate portion P7 are mutually at their lateral sides via the seventh folding margin portion B7. Connected, the fourth plate P
The lateral sides of the fourth and eighth plate portions P8 are connected to each other via the eighth folding portion B8.

The lateral sides of the fifth plate portion P5 and the ninth plate portion P9 are connected to each other through the ninth folding margin portion B9, and the sixth plate portion P6.
The tenth plate portion P10 and the tenth plate portion P10 have lateral sides which are the tenth folding margin portion B.
The seventh plate portion P7 and the eleventh plate portion P1 are connected via
In No. 1, the lateral sides are connected to each other via the eleventh folding margin portion B11, and the eighth plate portion P8 and the twelfth plate portion P12 are connected to each other on their lateral sides via the twelfth folding margin portion B12.

The first plate part P1 and the thirteenth plate part P13 are connected to each other at their lateral sides via the thirteenth folding margin part B13,
The plate portion P2 and the fourteenth plate portion P14 have the horizontal sides of the fourteenth
The third plate portion P3 and the fifteenth plate portion P3 are connected to each other through the folding margin portion B14.
The plate portion P15 has lateral sides connected to each other through a fifteenth folding portion B15, and the fourth plate portion P4 and the sixteenth plate portion P16 have lateral sides connected to each other through a sixteenth folding portion B16. There is.

The thirteenth plate portion P13 and the seventeenth plate portion P17 are connected to each other at their lateral sides through a seventeenth folding margin portion B17,
The fourteenth plate portion P14 and the eighteenth plate portion P18 are connected to each other at their lateral sides through the eighteenth folding margin portion B18, and the fifteenth plate portion P14.
The fifteenth and nineteenth plate parts P19 are connected to each other at their lateral sides via the nineteenth folding part B19, and the sixteenth plate part P16 and the twentieth plate part P19.
The plate portions P20 are connected to each other at their lateral sides via a twentieth folding margin portion B20.

A first cut groove C1 is formed in the ninth plate portion P9. The first kerf C1 is formed on the ninth plate portion P9 so that the first kerf C1 does not reach the ninth fold margin portion B9 from the horizontal side of the ninth plate portion P9 opposite to the fifth plate portion P5. It is formed substantially parallel to the vertical side.

A second kerf C2 is formed in the sixth plate portion P6 and the tenth plate portion P10. The second kerf C2 passes from the sixth folding margin portion B6 to the tenth folding margin portion B10 to form the tenth margin.
The sixth plate portion P6 and the tenth plate portion P10 are arranged so that the plate portion P10 does not reach the middle side of the tenth plate portion P10 to the side opposite to the sixth plate portion P6. It is formed substantially parallel to the vertical side.

A third kerf C3 is formed in the eleventh plate portion P11. The third kerf C3 extends vertically from the eleventh plate portion P11 so that the third kerf C3 does not reach the eleventh folding margin portion B11 from the lateral side of the eleventh plate portion P11 opposite to the seventh plate portion P7. It is formed substantially parallel to the side.

A fourth kerf C4 is formed in the eighth plate portion P8 and the twelfth plate portion P12. The fourth kerf C4 passes through the twelfth fold allowance portion B8 to the twelfth fold allowance portion B12 to form the twelfth fold.
The eighth plate portion P8 and the twelfth plate portion P12 are arranged such that the plate portion P12 does not reach the middle side of the twelfth plate portion P12 to the side opposite to the eighth plate portion P8. It is formed substantially parallel to the vertical side.

The widths of the first to fourth cut grooves C1 to C4 are set to be approximately twice the plate thickness of this corrugated board.

A fifth cut groove C5 is formed in the seventeenth plate portion P17. The fifth kerf C5 extends from the side opposite to the thirteenth plate part P13 to the seventeenth side of the seventeenth plate part P17.
It is formed substantially parallel to the vertical side of the seventeenth plate portion P17 so as to reach the folding margin portion B17.

A sixth kerf C6 is formed in the fourteenth plate portion P14 and the eighteenth plate portion P18. This sixth kerf C6
Passes from the fourteenth folding margin portion B14 to the eighteenth folding margin portion B18, and the fourteenth plate portion P14 among the horizontal sides of the eighteenth plate portion P18.
It is formed substantially parallel to the vertical sides of the fourteenth plate portion P14 and the eighteenth plate portion P18 so as to reach the lateral side on the opposite side.

A seventh kerf C7 is formed in the nineteenth plate portion P19. The seventh kerf C7 extends from the side of the nineteenth plate portion P19 opposite to the fifteenth plate portion P15 to the nineteenth side.
It is formed substantially parallel to the vertical side of the nineteenth plate portion P19 so as to reach the folding margin portion B19.

An eighth kerf C8 is formed in the sixteenth plate portion P16 and the twentieth plate portion P20. This eighth kerf C8
Is from the 16th folding margin portion B16 to the 20th portion of the 16th plate portion P16.
Along the vertical sides of the sixteenth plate portion P16 and the twentieth plate portion P20 so as to pass through the folding margin portion B20 and reach the horizontal side of the twentieth plate portion P20 opposite to the sixteenth plate portion P16. It is formed substantially in parallel.

The width of the fifth kerf C5 and the seventh kerf C7 is set to be approximately twice the plate thickness of the corrugated board, and
The widths of the cut groove C6 and the eighth cut groove C8 are set to be approximately four times the plate thickness of this corrugated board.

The ninth to twelfth plate portions P9 to P12 and the first
Outer lateral sides of the seventh to twentieth plate portions P17 to P20 and vertical sides continuous with these or the first, third, fifth to eighth kerfs C1, C
The intersections with the side edges of C3 to C5 are formed in an arc shape as shown in FIG. Also, each folding part B
The positions of 1 to B20 are appropriately shifted slightly in the vertical direction as shown in the figure so that adjacent plate portions P1 to P20 do not interfere with each other when they are folded and assembled. Is set to.

The assembling work of the girder member 4 will be described below. First, the first to fourth folding margin portions B1 to B4 are sequentially bent in the same direction so as to be substantially right angles, and an adhesive agent is applied to the glue margin portion M, so that the glue margin portion M and the fourth plate portion P4 are joined together. Glue
The first to fourth plate portions P1 to P4 are arranged in a substantially rectangular shape. This forms a substantially rectangular side plate.

Next, the sixth and eighth folding margin portions B6 and B10.
Is bent inwardly at a substantially right angle, and the tenth and twelfth folding margin parts B8, B12 are bent inwardly at a substantially right angle, so that the tenth plate part P10 and the twelfth plate part P are formed inside the side plate.
The plate surfaces of 12 are brought into contact with each other. At this time, the second kerf C
Of the second plate portion P6 and the fourth kerf C4
Of the second kerf C2, the tenth plate portion P1 of the second kerf C2 is in a substantially continuous straight line with a portion of the eighth plate portion P8.
0 part and the twelfth plate part P of the fourth kerf C4
The part existing at 12 is almost overlapped.

After that, the ninth plate portion P9 and the eleventh plate portion P1
While inserting 1 into the second and fourth kerfs C2 and C4, bend the fifth and ninth folding margin portions B5 and B9 inwardly at a substantially right angle, and the seventh and eleventh folding margin portions B7 and B11 inside. Bend it almost at a right angle to the inside of the side plate
And the plate surfaces of the eleventh plate portion P11 are brought into contact with each other. At this time, the first kerf C1 and the third kerf C3 are in a state of being superposed on each other, and the tenth and twelfth plate parts P10, P12 are inserted into the first and third kerfs C1, C3, A portion of the second kerf C2 existing in the tenth plate portion P10,
The ninth and eleventh plate portions P9 and P11 are inserted into the portion of the fourth kerf C4 that is present in the twelfth plate portion P12. In this state, the lower plate is composed of the fifth to eighth plate parts P5 to P8.

In this state, the pair of vertical sides of the ninth and eleventh plate portions P9 and P11 are in contact with the inner surfaces of the second and fourth plate portions P2 and P4, respectively, and the tenth and twelfth plate portions are formed. P
The pair of vertical sides 10 and P12 are in contact with the inner surfaces of the first and third plate portions P1 and P3, respectively.

Then, the fourteenth and eighteenth folding margin portions B14,
B18 is bent inward at a right angle and the 16th
Also, the twentieth folding margin portions B16, B20 are bent inwardly at a substantially right angle, and the plate surface of the eighteenth plate portion P18 is brought into contact with the plate surface of the tenth plate portion P10 inside the side plate, and the twentieth plate portion P20.
The plate surface of is brought into contact with the plate surface of the twelfth plate portion P12. At this time, the tip of the 18th plate P18 (the side opposite to the 14th plate P14) contacts the inner surface of the sixth plate P6, and the tip of the 20th plate P20 (opposite the 16th plate P16). The lateral side) is in contact with the inner surface of the eighth plate P8.

After that, the seventeenth and nineteenth plate portions P17, P
While inserting 19 into the sixth and eighth kerfs C6 and C8,
The third and seventeenth folding margin portions B13, B17 are bent inward at substantially right angles, and the fifteenth and nineteenth folding margin portions B15,
B19 is bent inward at a substantially right angle. As a result, the tenth and twelfth plate portions P1 are formed in the fifth and seventh kerfs C5, C7.
0, P12 are inserted, and the plate surface of the 17th plate part P17 is the 9th
The plate surface of the plate portion P9 comes into contact with the plate surface of the nineteenth plate portion P19 and the plate surface of the eleventh plate portion P11. At this time, the tip of the seventeenth plate P17 (the side opposite to the thirteenth plate P13) abuts the inner surfaces of the sixth and eighth plate P6, P8, and the tip of the nineteenth plate P19 (the fifteenth). The lateral side opposite to the plate portion P15 is in contact with the inner surfaces of the sixth and eighth plate portions P6 and P8.

In this state, the thirteenth to sixteenth plate portions P13 to
A substantially rectangular upper plate is configured by P16. Also, the ninth
-Twelfth plate parts P9 to P12 and 17th to 20th plate parts P1
7 to P20 form a substantially cross-shaped inner plate. Although not particularly limited, the adjacent plate portions P1 to P20 may be bonded to each other by adhesion or another bonding means in the assembled state.

A plurality of girder members 4 configured as described above
Is disposed between the top plate 2 and the bottom plate 3, and the lower surface of the top plate 2 and the upper plates (the thirteenth and fifteenth plate portions P13, P15) of the girder members are mutually adhered by an adhesive, and the upper surface of the bottom plate 3 and The pallet 1 is configured by similarly bonding the lower plates (fifth and seventh plate portions P5, P7) of the girder member 4 to each other with an adhesive. In addition, all or a part of the top and bottom of the plurality of girder members 4 arranged between the top plate 2 and the bottom plate 3 are reversed, that is, the lower surface of the top plate 2 and the upper surface (lower plate) of the girder member 4 are bonded. Alternatively, the upper surface of the bottom plate 3 and the lower surface (upper plate) of the girder member 4 may be adhered to each other by an adhesive agent.

According to the pallet 1 of the present embodiment, the girder member 4 includes the lower plate formed of the fifth to eighth plate portions P5 to P8 and having a substantially rectangular plate shape, and the thirteenth to sixteenth parts. Plate part P1
An upper plate formed of a substantially rectangular plate shape made up of 3 to P16 and first to fourth plate parts P1 to P4 arranged in a rectangular shape.
Is supported by the side plate configured by and the inner plate formed in a substantially cross shape configured by the ninth to twelfth and seventeenth to twentieth plate portions P9 to P12 and P17 to P20, that is, the upper plate. And the lower plate is a side plate composed of four plate parts (P1 to P4) and eight plate parts (P9 to P12, P17 to P20).
Since it is supported by the inner plate made of, it is possible to realize high load resistance in the vertical direction. Further, since the side edge (vertical side) of the inner plate is in contact with the inner surface of the side plate, the deformation of the side plate is suppressed by the inner plate, and thereby high load resistance is achieved even with respect to diagonal loads. You can Therefore, it is possible to provide a pallet having a good load bearing performance.

Moreover, the area of the upper plate and the lower plate of the girder member 4 can be increased without increasing the weight of the girder member 4, so that a sufficient bonding area with the top plate 2 or the bottom plate 3 can be secured. Therefore, the occurrence of obstacles such as out-of-digits is reduced. In addition, since it is possible to realize sufficient bonding strength without adopting a special structure for improving the bonding strength with the top plate or the like as in the past, it is possible to use the standardized top plate, bottom plate and girder member. By using the pallet, it is possible to easily manufacture a pallet according to various specifications in which the number and position of the girder members are different, the number of parts and the number of assembling steps can be reduced, and an inexpensive pallet can be provided.

When a water-repellent film is attached to improve waterproofness, the top plate 2 and the bottom plate 3 are flat, that is, because there is no standing portion unlike the conventional one.
The work is extremely easy, and since the girder member has a substantially parallelepiped shape, it is also easy to attach the water-repellent film to a portion to be exposed on the surface. In addition, if the girder member is unfolded before assembly, a water-repellent film is attached to necessary parts, or if the water-repellent film is attached at the corrugated board stage and then cut, further work can be performed. It will be easy.

In the above-described embodiment, the glue margin portion M is provided on the first plate portion P1, but it may be provided on the fourth plate portion P4. Further, such a glue margin portion is omitted, and the first plate portion P1 and the fourth plate portion P1
The vertical sides of the plate portion P4 may be directly connected by an adhesive, or may be connected via an independently formed margin portion (for example, a joining member having a substantially L-shaped cross section). You may do it. Further, the connection at the margin portion is not limited to the adhesive, and the connection may be made together with the adhesive or independently using other connecting means such as a stapler or a binding band.

In the above-mentioned embodiment, the corresponding plate portions P1 to P20 are integrally connected via the first to third and fifth to twentieth folding margin portions B1 to B3 and B5 to B20. However, the space between them may be separated. In this case, as the connecting means, various kinds of means similar to the above-mentioned glue margin portion and others can be adopted.

Next, a modified example of the above embodiment will be described below. That is, in the embodiment described above,
20th plate part P17-P20 and 6th and 8th kerf C
It is possible to have a configuration in which 6, 6 and 8 are omitted. In addition, the fourteenth and eighteenth plate portions P14, P18, the sixteenth and twentieth
Plate portions P16, P18, and sixth and eighth cut grooves C6, C
8 can be omitted. In these modified examples, the load resistance is slightly lower than that of the above-described embodiment, but there is an advantage that the configuration is simplified.

The thirteenth to twentieth plate portions P13 to P20
Can be omitted. Although the load resistance is further reduced, there is an advantage that the configuration is further simplified. In this case, there is no portion corresponding to the upper plate of the girder member (lower plate when the top and bottom are used upside down), but since there is a substantially cross-shaped inner plate, there is a substantially rectangular side plate. By bonding the edge portion and the edge portion of this inner plate, it is possible to secure a certain degree of bonding strength. If necessary, it is advisable to adopt the same reinforcing means as described below.

When it is necessary to further improve the load resistance of the girder member 4 of the above-described embodiment, the conventionally used paper tube is accommodated in the girder member 4 so as to be accommodated. You may do it. In this case, the axial direction of the paper tube is aligned with the vertical direction so that both end surfaces of the paper tube are aligned with the girder member 4.
It may be provided so as to contact the upper plate and the lower plate. Even in this case, there is an advantage that only the work of housing the paper tube inside the girder member 4 is increased, and other operations can be handled without changing the configuration at all. The reinforcing member housed inside the girder member in order to improve load resistance is not limited to the paper tube as described above, and has, for example, a parallelepiped outer shape that fits into the inner space of the girder member. It may be a member. It is also possible to reduce the size only while maintaining the same configuration as the girder member of the present embodiment, and to arrange the girder member in the internal space in a fitting manner.

By the way, there is a case where an outer box is used to protect the luggage while the luggage is placed on the pallet as described above. In this case, the outer box can be fixed to the pallet. convenient. Countermeasures therefor will be described below with reference to FIG.

As shown in FIG. 3, the girder member 4 of the pallet 1 is provided with a mounting hole 5 penetrating inward and outward in a substantially central portion of its side plate. The mounting holes 5 can be easily formed by forming through holes in the first to fourth plate portions P1 to P4 in a corrugated board state. On the other hand, similar mounting holes are formed in the outer box 6 at positions corresponding to the mounting holes 5 of the respective girder members 4. If the outer box 6 is covered from above with the luggage placed on the pallet 1, the mounting holes 5 of the girder member 4 and the mounting holes of the outer box 6 face each other. By fitting the pin member 7 as a fixing means from the outside, the outer box 6 is fixed to the girder member 4.

The shape of the mounting hole 5 is not particularly limited, and may be round,
Oval, rectangular, and other shapes can be adopted. The pin member 7 as the fixing means is made of plastic, for example,
A releasable lock structure (not shown) is provided for preventing a slip-out after insertion, which has a tubular portion inserted into the mounting hole 5 and a flange portion for preventing the pin member 7 from entering the girder member 4. Those that have can be adopted.

As the position of the mounting hole 5, in the above example,
The side plate (first to fourth plate portions P1 to P4) of the girder member 4 is substantially in the center, and in this case, the end of the inner plate is located on the rear surface side of the mounting hole 5, If the mounting of the member 7 is hindered, it can be easily dealt with by forming a notch in a corresponding part of the inner plate. If the position of the mounting hole 5 is eccentric from the central part of the plate part and is formed in a portion where the inner plate is not located, such a problem does not occur, which is convenient.

As another example of attaching the outer box, a structure as shown in FIG. 4 can be shown. A rectangular opening 8 is formed in the vicinity of the side plate of the upper plate of the girder member 4, and when the girder member 4 is arranged between the top plate 2 and the bottom plate 3 of the pallet, the opening 8 of the girder member 4 is set to the top plate 2. The pallet is assembled with a part of the girder member 4 protruding so as to be exposed along the side edge of the pallet. On the other hand, the opening 8 at the lower edge of the outer box 6
A protrusion 9 having a shape that fits into the opening 8 is provided at a position corresponding to the above, and the protrusion 9 of the outer box 6 is fitted into the corresponding opening 8 of the girder member 4 to form the outer box. 6 can be fixed to the pallet.

It is arbitrary which of the plurality of beam members 4 supporting the top plate 2 adopts such a structure, but it is arranged along the side edge of the top plate 2, for example. Such a configuration can be adopted for the girder members 4 except the ones located at the corners of the top plate 2 among the girder members 4 thus formed. The shape of the opening 8 of the girder member 4 and the shape of the protruding portion 9 of the exterior box 6 corresponding thereto are not limited to those shown in FIG. 4 and may be other shapes.

In this example, since the girder member 4 having the opening 8 is slightly projected from the top plate 2 and the bottom plate 3, the girder member 4 may be slightly modified to change the structure of the top plate 2.
It is also advantageous in that the configuration of the bottom plate 3 is not changed. However, the girder member 4 may be arranged as shown in FIG. 1, and the top plate 2 may be formed with an opening (not shown) corresponding to the opening 8 of the girder member 4.

The embodiments described above are described for facilitating the understanding of the present invention, and are not described for limiting the present invention. Therefore, each element disclosed in the above-described embodiment is intended to include all design changes and equivalents within the technical scope of the present invention.

For example, in the above-mentioned embodiment, the pallet in which the girder member is interposed between the top plate and the bottom plate is explained, but the girder member according to the present invention is applied to the pallet without the bottom plate. Good.

[0068]

According to the girder member and the pallet according to the present invention, it is possible to suppress the deformation of the top plate due to an unbalanced load while improving the joint strength with the top plate or the bottom plate and to reduce the weight, and the installation position of the girder member. Can be freely changed and the assembling work including water repellent treatment can be realized, and sufficient load resistance can be obtained without using a corrugated board material having high strength.

[Brief description of drawings]

FIG. 1 is a perspective view showing an overall configuration of a pallet according to an embodiment of the present invention.

FIG. 2 is a development view showing a configuration of a girder member according to the embodiment of the present invention.

FIG. 3 is a perspective view for explaining a fixing structure of the outer box of the pallet according to the embodiment of the present invention.

FIG. 4 is an enlarged perspective view of a main part for explaining another fixing structure of the outer box of the pallet according to the embodiment of the present invention.

[Explanation of symbols]

1 ... pallet 2 ... top plate 3 ... Bottom plate 4 ... Girder member 6 ... Exterior box P1 to P20 ... Plate B1 to B20 ... folding section C1-C8 ... kerf M ... Paste margin

Claims (5)

[Claims] 1. A girder member made of corrugated cardboard having a substantially parallelepiped outer shape, comprising: a substantially rectangular first plate portion; and a first folding margin portion on one longitudinal side of the first plate portion. A substantially rectangular second plate portion having one vertical side connected thereto, and a substantially rectangular shape having one vertical side connected to the other vertical side of the second plate portion through a second folding margin portion. Of the third plate portion and one of the other vertical sides of the third plate portion is connected to the other vertical side of the third plate portion via a third folding margin portion, and the other vertical side of the first plate portion has a fourth vertical side. A substantially rectangular fourth plate portion whose other vertical side is connected via a folding margin portion, and one lateral side of the first plate portion on one lateral side via a fifth folding margin portion. A connected substantially rectangular fifth plate part, and a substantially rectangular sixth plate part having one lateral side connected to one lateral side of the second plate part through a sixth folding margin part. , A seventh folding portion on one lateral side of the third plate portion A substantially rectangular seventh plate portion having one lateral side connected thereto via the first plate, and a substantially rectangular side plate having one lateral side connected to the one lateral side of the fourth plate portion through an eighth folding portion. A rectangular eighth plate portion; a substantially rectangular ninth plate portion whose one horizontal side is connected to the other horizontal side of the fifth plate portion via a ninth folding margin portion; An approximately rectangular tenth plate part having one lateral side connected to the other lateral side of the plate part through a tenth folding part, and an eleventh folding part on the other lateral side of the seventh plate part. A substantially rectangular eleventh plate portion whose one side is connected via a section, and the other side of the eighth plate is connected to the other side by a twelfth folding portion. A substantially rectangular twelfth plate part, and the second plate part is formed substantially parallel to the vertical side of the ninth plate part so as not to reach the ninth folding margin part from the other lateral side of the ninth plate part. The 10th plate part and the 12th plate part are inserted. The first kerf part and the sixth plate part and the tenth plate so as not to pass through the sixth fold part and the tenth fold part to reach the other lateral side of the tenth plate part. A second kerf portion that is formed substantially parallel to the vertical side of the portion and into which the ninth plate portion and the eleventh plate portion are inserted; and from the other horizontal side of the eleventh plate portion to the eleventh folding portion. A third kerf portion that is formed substantially parallel to the vertical side of the eleventh plate portion so that the tenth plate portion and the twelfth plate portion are inserted, and the eighth folding portion to the twelfth folding portion. It is formed substantially parallel to the vertical sides of the eighth plate part and the twelfth plate part so as not to pass through the margin part and reach the other horizontal side of the twelfth plate part. 11. A girder member comprising a fourth kerf portion into which 11 plate portions are inserted. 2. A substantially rectangular first side having one lateral side thereof connected to the other lateral side of the first plate portion through a thirteenth folding portion.
3 plate parts, a substantially rectangular 14th plate part having one lateral side connected to the other lateral side of the 2nd plate part via a 14th folding part, and the other 3rd plate part A substantially rectangular shaped fifteenth plate part having one lateral side connected to the lateral side of the fourth plate part through a fifteenth margin part, and the other lateral side of the fourth plate part through the sixteenth margin part. A substantially rectangular sixteenth plate part having one lateral side connected thereto, and a substantially rectangular shape having one lateral side connected to the other lateral side of the thirteenth plate part through a seventeenth folding margin. 17th plate part, a substantially rectangular 18th plate part having one horizontal side connected to the other horizontal side of the 14th plate part via an 18th folding part, and the 15th plate part A substantially rectangular nineteenth plate portion having one lateral side connected to the other lateral side of the sixteenth plate portion, and a twentieth folded portion on the other lateral side of the sixteenth plate portion. One side of which is connected through A substantially rectangular shaped twentieth plate portion formed in parallel with a vertical side of the seventeenth plate portion so as to extend from the other lateral side of the seventeenth plate portion to the seventeenth folding margin. A fifth kerf portion into which the tenth plate portion and the twelfth plate portion are inserted, and the fifth kerf portion passing from the fourteenth folding margin portion to the eighteenth folding margin portion to reach the other lateral side of the eighteenth plate portion. From a sixth kerf formed substantially parallel to the vertical sides of the fourteenth plate part and the eighteenth plate part and into which the seventeenth plate part and the nineteenth plate part are inserted, and from the other lateral side of the nineteenth plate part. A seventh kerf portion formed substantially parallel to the vertical side of the nineteenth plate portion so as to reach the nineteenth folding portion, and into which the tenth plate portion and the twelfth plate portion are inserted; From the first portion to the other horizontal side of the twentieth plate portion so as to pass through the twentieth folding margin portion and are formed substantially parallel to the vertical sides of the sixteenth plate portion and the twentieth plate portion. The girder member according to claim 1, further comprising an eighth kerf portion into which the seventeenth plate portion and the nineteenth plate portion are inserted. 3. A glue margin portion for connecting one plate portion and the other plate portion divided by at least one of the first folding margin portion to the twentieth folding margin portion is provided. The girder member according to claim 1 or 2, which is characterized. 4. The at least one of the first plate part to the twentieth plate part is provided with an opening or a notch for fixing an outer box. Girder member described in. 5. A pallet using the girder member according to claim 1, wherein a top plate, a bottom plate, and the top plate and the bottom plate are held substantially parallel to each other. A pallet comprising: a plurality of the girder members that are joined and fixed to a lower surface of a top plate and an upper surface of the bottom plate, respectively.