JP2004352368A - Paper-made pallet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper-made pallet, which is not made of a material raising a waste disposal problem, such as plastic, but retains strength, improved in constructibility and availability in general purposes, and can be manufactured inexpensively. <P>SOLUTION: According to the paper-made pallet, cutouts are formed at respective diagonal positions on a pair of opposite end edges or near them, and are folded, raised, and further folded down to form girder forming parts and girder reinforcing parts on two upper and lower sheets of corrugated board or paper, respectively. The two sheets are made to overlap each other so that each one girder forming part is on top of the other at a shifted angle of 90 degrees. The upper part of the lower sheet where the cutouts are made to form the girder forming parts is extended to cover the top of the girders formed at the girder forming parts. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a paper pallet composed entirely or mostly of corrugated cardboard or paper products and used for carrying and storing articles.

  Conventionally, wooden flat pallets have been used for loading cargo. However, in recent years, there have been problems with nature protection and restrictions on the use of wood, the problem of heavy weight due to the use of metal nails for fixing the materials used, and the risk of injury due to rough wood chips and nails. The demand for weight reduction, cost reduction, disposal treatment, and reusability is increasing.

  Also, for wooden pallets used for special purposes or export, the moisture in the wood may reduce the value of the product.If fumigation is required to kill insects and germs that are parasitic on the wood, There was also. Furthermore, with wooden pallets, when products are loaded on the pallets and transported by trucks or the like, the degree of attenuating the vibration caused by the unevenness of the road surface is small, so that the cushioning cannot be expected much. In addition, it is difficult to recycle existing wooden pallets and plastic pallets as resources, and it is also difficult to easily dispose of them when discarding them.

  For this reason, in Patent Document 1, a flat plate such as an interleaf paper or a corrugated cardboard sheet is arranged on a top plate reinforcing material formed by molding an interleaf paper into an angle to form a top plate, and a separate interleaf paper or the like is provided on a bottom plate of the top plate. There has been proposed a paper pallet that is formed by bonding two or more legs in parallel with each other. In addition, when the leg spar is bonded in this way, problems may occur in impact resistance and water resistance. Therefore, Patent Document 2 discloses a sleeve in which both upper and lower deck boards are integrally formed of a paper product. Forming a main body, and wrapping the girder made of paper separately with this main body, so that the girder can be securely held firmly in the main body and shocks can be absorbed by each part, and together with the bonding part There has been proposed a paper pallet for preventing water seepage.

JP-A-8-72876 JP 2000-335579 A

  However, the paper pallets shown in these Patent Documents 1 and 2 need to make the girder portions as separate pieces, respectively, which increases costs and increases the man-hours for assembling. was there. Further, the paper pallet disclosed in Patent Literature 1 has a fork insertion port provided in only one direction, and thus has poor versatility.

  Therefore, in the present invention, there is provided a paper pallet which does not use a material such as plastic which causes a problem in waste disposal, and nevertheless maintains strength, improves assemblability and versatility and can be manufactured at low cost. Is an issue.

In order to solve the above-mentioned problems, in the present invention, a paper pallet main body which is made of cardboard or paper products and supports a product mounting portion by a girder portion, wherein the pallet main body is formed by stacking a plurality of sheets. In the paper pallet formed by
A girder forming portion for forming a girder portion by folding and bending a corresponding piece formed by providing a cut in an extending portion opposed to the central portion corresponding to the pallet body, and forming the girder portion; Forming a girder reinforcement portion for reinforcing the girder of at least one surface of the portion, overlapping the plurality of sheets so that the girder formation portion is displaced by 90 degrees, and the girder reinforcement portion formed on one sheet is attached to another sheet. The present invention is characterized in that the girder forming portion is formed by bending the provided girder forming portion to abut at least one peripheral surface of the girder portion to reinforce the girder.

  In this case, the sheet (both the upper sheet and the lower sheet) is cut along the opposite side of the central portion of the sheet, and a girder forming section is provided along the cut line. A girder reinforcement portion for bending a girder portion formed by a girder formation portion of another sheet is formed on the other even portion of the side by bending a piece of Good to be.

  Further, the one sheet is sequentially formed with a girder forming portion in both outer directions of a central portion, a beam portion positioned on a girder portion upper surface formed by bending the girder forming portion, and a girder portion formed by bending the girder forming portion. It is preferable that a girder reinforcement portion for reinforcing at least one side of the girder is provided, and that the girder reinforcement portion formed in the third width region is one side of a sheet central portion together with another superimposed sheet. It is preferable that a pair is provided on both sides in the longitudinal direction of the width region so as to reinforce at least one surface of each of the two girder portions formed on both even portions.

  As a result, the paper pallet according to the present invention folds and bends a corresponding piece formed by providing a cut in each of the plurality of sheets and forming a cut in an extending portion facing each other across a central portion corresponding to the pallet body. A girder forming portion forming a girder portion and a girder reinforcing portion for reinforcing a girder on at least one surface of the girder portion are formed, and the plurality of sheets are overlapped with each other so that the girder forming portion is displaced by 90 degrees. The girder reinforcement portion formed on the sheet is configured to abut on at least one peripheral surface of the girder portion formed by bending a girder formation portion provided on another sheet, and to reinforce the girder, particularly, The formed girder part has its peripheral surface supported by the girder reinforcement part, its upper surface is supported by the beam part, and the girder parts at the four corners are formed by two superposed paper sheets. Material cost It is possible to save the assembly can be easily and inexpensively manufactured. Also, since the girder forming parts are shifted from each other by 90 degrees, the edge of each sheet can be used effectively, and the hole after forming the girder in each girder forming part should be used as a fork insertion port. Therefore, it is possible to provide a versatile pallet in which forks can be inserted from all sides.

  Hereinafter, embodiments of the present invention will be illustratively described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention to them, unless otherwise specified, and are merely mere descriptions. This is just an example.

1 is a completed view showing a paper pallet according to an embodiment of the present invention, in which a product mounting portion is fixed to the upper surface of a pallet main body. FIG. 2 is a paper before mounting the product mounting portion from FIG. FIGS. 3 and 4 show a pallet made of paper, and particularly illustrate a method of assembling the pallet made of paper. FIGS. 3 and 4 show a paper sheet on the lower side and a paper sheet on the upper side when forming the pallet made of paper. It is a figure for explaining the position of each cut and folding.
FIG. 5 is a diagram for explaining the positions of cutting and folding of the paper sheet for creating the product placement unit.

  As shown in FIG. 3, the lower paper sheet 1 used in the embodiment of the present invention has, at the center, an opening 10 into which a roller of a hand fork enters, and a left and right side of a paper sheet central portion 1A having a shape corresponding to the paper pallet body 100A. A first width region 1B, 1B for forming the girder forming portion 11 by a broken line or a cut in each of the extending portions of the opposite sides on both sides in the longitudinal direction (the eye direction 15 left and right), and a beam portion 12 on the outer extending portion. The second widths 1C and 1C set to have widths corresponding to the width of the third width 1D and the third widths 1D and 1D forming the girder reinforcement 13.14 in the extending portion outside the second width are respectively left and right. They are arranged symmetrically.

The third width region 1D of, together with the 1D ₁ cutting out each center, the notch notched line 1D ₂ from the vertical position, further put right angle fold line than stop installation position 1D ₃ of the score line 1D ₂ by the third width region 1D of the upper and lower, i.e. single _{131-134 2,} 131-134 ₂ of the first digit reinforcing portions 13 at four even lower paper sheet 1, second 14 _{1 to} 14 ₂ , 14 _{1 to} 14 ₂ of the girder reinforcing portion 14 are formed.

The second width region 1C is formed by forming a fold line (dotted line) in parallel with the upper and lower paper sheets 1 along the boundary line between the adjacent width regions by forming a folding line (dotted line). It is formed as a beam that conceals the upper surfaces of the parts 11 and 21.
The first width region 1B is between pieces 11 ₆ as putting score lines between strips 11 ₁ to 11 ₄ corresponding to the opening to put the forks of a forklift upwards U shaped pieces 11 ₁ and reinforcing piece while separated from the strip ₁₁ 1 to 11 ₄ and 11 ₅ is connected via a fold line.

  As a result, the girder forming portion 11 for forming a girder on the diagonal of the corner of the paper pallet body 100A, the first girder reinforcing portion 13 for reinforcing the girder, and the diagonal of the corner of the upper paper sheet 2 It has a second girder reinforcing portion 14 for reinforcing a girder formed by a girder forming portion 21 for forming a girder, and an opening 10 into which a roller of a hand fork enters, and each of the girder forming portions 11, the first and the second girder. The girder reinforcements 13 and 14 can be formed by making a cut in a solid line portion and bending it at a position indicated by a dotted line.

As shown in FIG. 4, the upper paper sheet 2 has an opening 20 in the center thereof into which a roller of a hand fork enters, and is displaced by 90 degrees with respect to the lower paper sheet 1 at a sheet central square portion 2A corresponding to the shape of the pallet body 100A. A girder forming portion is formed by an L-shaped notch 2B corresponding to the opening 9 for inserting a bent line and a fork portion of a forklift, respectively, in the extending portions of the opposite sides on both sides in the up-down longitudinal direction (the eye direction 23 up and down) of the rectangular portion 2A. 21 pieces 21 ₁ to 21 ₄ which forms a is formed in a diagonal of the even number position, the third digit reinforcing portion 22 are separated by notches 2B is formed between the strips 21 ₄ forming the Mataketa forming unit 21 Is done. That is, the pair of third girder reinforcing portions 22 and girder forming portions 21 located on both sides of the central portion 2A of the sheet are formed at the even positions of the diagonal line of the rotationally symmetric position.
As a result, a pair of the girder forming portions 21 and 21 is provided at one corner of the side facing the central square portion 2A of the upper paper sheet 2 and which is rotationally symmetric, and a pair of girder reinforcing portions is provided at the other corner of the side. 22 and 22 will be provided.

  As a result, a girder forming portion 21 that forms a girder on the diagonal of the corner of the paper pallet main body 100A, a third girder reinforcing portion 22 that reinforces the girder formed by the girder forming portion 11 of the lower paper sheet 1, and And an opening 20 into which a hand fork roller is inserted. Each of the beam forming portions 21 is bent along a practical portion as a cut line or along a folding line shown by a dotted line. Further, the product mounting paper sheet 3 shown in FIG. 5 is also bent when the notches are made in the solid line portions and the four side walls 30 and 31 shown by dotted lines are erected, and the connecting portion 32 is formed as shown in FIG. The walls 30 and 31 are connected to each other by the wire 6 via the wire 6 and assembled so that the product can be placed thereon.

  Next, a specific example of the paper pallet of the present invention will be described with reference to FIG. A paper pallet indicated as a whole by 100 comprises a box-shaped product mounting portion 100B at the top in the figure, and a pallet body 100A for mounting the product mounting portion 100B.

In the drawing, reference numeral 1 denotes a lower paper sheet on the lower side of the paper pallet body 100A according to the embodiment of the present invention, 2 denotes an upper paper sheet to be placed on the lower paper sheet 1, and 3 denotes upper and lower paper sheets 1. 2 is a product mounting paper sheet that forms a product mounting board for mounting products on the paper pallet body 100A composed of 2 and the product mounting board is not limited to the form shown in FIG. Various changes can be made in accordance with. The paper sheets 1, 2, and 3 may be any paper products having a certain strength, such as corrugated cardboard or interleaf paper. What can be bent to is preferred. As shown in FIG. 2, reference numeral 4 denotes a paper tube for reinforcing the girder portion of the paper pallet body 100A composed of the lower and upper paper sheets 1 and 2, and 5 denotes a reinforcement for fixing the paper tube 4. in use members, ₂ pieces 5 on both sides of the strip 5 _1, 5 ₃ extends, migraine 5 ₁ and the pallet upper surface of the main body, piece 5 _2, 5 ₃ performs reinforcement is adhered with the digit in the wall. The paper tube 4 and the reinforcing member 5 are used when the weight of the product and the strength against wetness are required. Reference numeral 6 denotes a wire used to form an open-top rectangular product mounting portion by bending the side surface side when the walls 30 and 31 on four sides of the product mounting paper sheet 3 are erected, and 7 denotes a product mounting portion 100B. Are fixed to a paper pallet body 100A formed of the lower paper sheet 1 and the upper paper sheet 2, and the boxers 8, 9 are displaced by 90 degrees at openings for inserting a fork portion of a forklift on the paper pallet. It is.

10, when carried in the hand fork by placing the product in paper pallet 100 according to an embodiment of the present invention, the central opening to put the part of the roller of the hand fork 11 each piece 11 ₁ to 11 ₄ contraposition direction, i.e. along the opposite side of the central square portion 1A, the digit form of the opening 8 that is opened by folding the strips 11 ₁ to 11 ₄ with making the digit by bending piece 11 ₅ direction hole plugging forks of a forklift in part, the reinforcement piece 11 ₆ digits forming portion 11 of the separated lower sheet 1 which has been erected, as described later, to adhere to the pieces 21 ₄ digits forming section 21.
The beam portion 12 is a top surface sealing portion that covers and protects the girder forming portion 11 of the upper sheet 2 from the girder forming portion 11 of the lower sheet 1 and forms part of the girder forming portions 11 and 21 on both sides thereof. piece 11 _1, are then connected to the reinforcement pieces 11 _6. Outside the beam portion 12, a first girder reinforcement portion 13 for reinforcing the girder formed by the girder forming portion 11, and a second girder reinforcement for reinforcing the girder formed by the girder forming portion 21 of the upper paper sheet 2. part 14 is positioned, consist each piece _{131-134 2, 131-134 2, 14} 1 to 14 _2, 14 1 to 14 ₂ to 4 even in the lower paper sheet 1 as shown in FIG. 3, 13 ₁ is laminated on one 11 ₃ of the lower sheet 1 digit forming part 11, 13 ₂ so that the stacked on one 11 ₄ digits forming unit 11. The piece 11 ₁ of the lower sheet 1 digit forming part 11 as described later is bonded to the reinforcing portion 22 of the upper sheet, and digit form of a strip 21 ₄ of the upper sheet digits forming portion 21 lower sheet 1 Adhere to the part 11.

The results are also strips ₂₁ 1 to 21 ₃ of the upper sheet of the girder forming portion 21 is laminated on the second reinforcing portion ₁₄ 1-14 ₂ and the reinforcement piece 11 _6, pieces ₁₁ 2-digit forming part 11 of the lower sheet 1 11 ₄ is laminated to the first reinforcing portion _{131-134 2} and the third reinforcing portions 22, in order to have further joined also 11 ₁ and 11 _5, either the upper and lower sheets of the girder forming portions 11 and 21 also the the three peripheral surface or four peripheral surfaces are doubly by the reinforcing portion _{11 6, 131-134 2, 131-134 2,} 14 1 to 14 _2, 14 1 to 14 ₂ and 22 Become,
Reference numeral 15 indicates the direction of the eyes when the lower paper sheet 1 is made of cardboard. 20, when carried in the hand fork by placing the product in the newspaper pallet 100, an opening to put the part of the roller of the hand fork 21 each piece 21 ₁ to 21 ₄ each side of the sheet central square region together along making girder is bent by 90 degrees in a diagonal direction, migraine 21 ₁ to 21 ₄ can girder forming portion formed to the hole to insert the forklift fork openings could after bending, 22 the lower sheet the seat 1 third reinforcing the digit pieces 11 ₁ formed by the digits forming unit 11 the digit reinforcing portion of the lower paper sheet 1 as shown in FIG. 4 the bottom left even and upper right even diagonally positioned third respectively Pieces functioning as the girder reinforcements 22 are formed. Reference numeral 23 indicates the direction of the eyes when the upper paper sheet 2 is made of cardboard.
In FIG. 5, reference numeral 32 denotes a connecting portion connecting the walls 30 and 31 to each other. A solid line between 31 and 32 indicates a cutting line, and a broken line indicates a bending line.
Note that the girder formed by the girder forming portions 11 and 21 in these paper sheets 1 and 2 is formed at a diagonal position of each paper sheet 1 and 2, so that the same elements are given the same numbers and have the same subscripts. Is attached. The solid line in each of the paper sheets 1, 2, and 3 indicates a cutting line, and the broken line indicates a bending line.

  The paper pallet 100 according to the embodiment of the present invention is used for displaying a product made of an adhesive or a wire used for making the pallet, a boxer or a resin film with an adhesive for displaying the product. The other part such as the label is composed of a pallet using sheets of paper products such as cardboard and interleaf paper. As shown in FIG. 2, the upper paper sheet 2 is placed on the lower paper sheet 1, The beam forming portions of the respective paper sheets 1 and 2 are placed so as to be shifted from each other by 90 degrees, and the beams formed by the beam forming portions 11 and 21 are formed at the four corners. The material is put in the direction of the arrow and adhered to form a paper pallet main body 100A. Further, as shown in FIG. 1, the four side walls 30, 31 of the product mounting paper sheet 3 shown in FIG. With wire 6 through 32 Connect the Inokabe 30 and 31 is obtained by fixing the product placement portion 100B so assembled can be placed on the product in boxer 7. When the paper sheets 1 and 2 are made of corrugated cardboard, as described above, the beam forming portions are shifted by 90 degrees (rotational displacement), and the eye directions 15 and 23 are also shifted by 90 degrees.

And, as described above, the beam forming portions are shifted by 90 degrees on the lower paper 1, and when the sheets 1 and 2 are corrugated cardboard, the eye directions 15 and 23 are shifted by 90 degrees. The upper paper sheet 2 is placed, and as shown in FIG. 2, the third girder reinforcement portion 22 of the upper paper sheet 2 is vertically erected, and the third girder reinforcement portion 22 is placed on the lower side so as to be inside the girder. thereby bonding together digits forming portion 11 ₂ of the paper sheet 1, the strip 11 ₁ digit forming part 11, placed between the pieces 11 ₅ digits forming portion 11 of the third digit reinforcing portion 22 digits forming section 11 ₅ adhered to the form of digits.
Further, the digit formation portion 21 of the upper sheet 2 is bent opposing pieces to form the digit, to bond the strips 21 ₄ digits forming portion 21 in the reinforcing piece 11 ₆ of the lower sheet 1 digit forming part 11. And if the column portions each require reinforcement at this stage, placed reinforcing member 5 and the paper tube 4 in this position, both sides of the extending pieces 5 ₂ as pieces 5 _{1 2,} 5 piece 5 _{1 while 3} by bending the a pallet main body upper surface, strips 5 _2, 5 ₃ performs reinforcement is adhered with the digit in the wall. When is placed reinforcements 4,5 Thus, bonding the beam portion 12 to the upper digit, further strips 13 ₁ digit reinforcing portion 13 to the strip 11 ₃ digits forming section 11, pieces 13 of the girder reinforcement portion 13 ₂ There the pieces 11 ₄ digits forming section 11, pieces 14 ₁ digit reinforcing portion 14 to the piece 21 ₂ digits forming section 21, pieces 14 ₂ digit reinforcing portion 14 is bonded to the piece 21 ₃ digits forming unit 21 You. Lastly, as shown in FIG. 1, the product placing portion 100B formed by hitting the wire 6 or the like is placed on the product placing paper sheet 3, and the product placing portion 100B and the paper pallet main body 100A are connected by the boxer 7 or the like. When stopped, the paper pallet 100 is completed.

In this manner, by forming the four pallets at the diagonal portions of the lower paper sheet 1 and the upper paper sheet 2 which are overlapped with the pallet forming portions shifted by 90 degrees, a paper pallet is formed. as the girder piece ₁₁ 1 to 11 ₄ of the girder forming unit 11 for forming a, and where 21 pieces ₂₁ 2-21 ₄ there is shown in FIG. 1, since the opening as 8,9, A forklift fork section can be inserted into this part. Further, since the girder portion can be formed only by bending the cut end portions of the superposed lower paper sheet 1 and upper paper sheet 2, it does not require any man-hour as in a case where it is separately formed, and is very simple. , And can be manufactured inexpensively.

Further, the peripheral surface of each digit as described above, from being reinforced at least three peripheral surface with reinforcing piece 11 ₅ and column reinforcement portion 13,14,22, can be a strong spar, also, the lower When the side paper sheet 1 and the upper paper sheet 2 are corrugated cardboards, by shifting the direction of the eyes by 90 degrees, a paper pallet that is resistant to impact and vibration due to dropping and can be provided with strength during transportation can be provided. Further, by inserting the reinforcing paper tube 4 and the reinforcing member 5 into this girder portion, it is possible to provide a paper pallet that is resistant to water wetting and the like. It is obvious that the paper tube 4 may use a similar member formed of a resin or the like.

  According to the present invention, it is possible to provide a paper pallet that does not use a material such as plastic that causes a problem in waste treatment, maintains strength, improves assemblability and versatility, and can be manufactured at low cost.

FIG. 4 is a completed view showing a state in which a product mounting portion is fixed to the upper surface of the paper pallet main body in the paper pallet according to the embodiment of the present invention. FIG. 2 is a diagram for explaining a method of assembling a paper pallet body used for the paper pallet of FIG. 1. FIG. 3 is a diagram for explaining the cutting and folding positions of a lower paper sheet for creating the paper pallet body of FIG. 2. FIG. 3 is a diagram for explaining positions of cutting and folding of an upper paper sheet for creating the paper pallet body of FIG. 2. It is a figure for explaining the position of cutting and folding of the paper sheet for making the above-mentioned product placing part.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Lower paper sheet 2 Upper paper sheet 4 Paper tube 5 Reinforcement member 10, 20 Opening for inserting the roller of hand fork 11 Girder forming part 12 Beam part 13, 14 Girder reinforcing part 21 Girder forming part 22 Girder reinforcing part 100 Paper pallet 100A Paper pallet body 100B Product mounting part

Claims (4)

A paper pallet body entirely or mostly composed of corrugated cardboard or paper products and supporting a product mounting portion by a girder portion, wherein the pallet body is formed by laminating a plurality of sheets,
A spar forming portion for forming a spar portion by folding and bending a piece formed by providing a cut in an extending portion opposed to the central portion corresponding to the pallet body and sandwiching the plurality of sheets, and forming a spar portion. A girder reinforcement portion for reinforcing at least one girder is formed, the plurality of sheets are overlapped with each other so that the girder formation portion is displaced by 90 degrees, and a girder reinforcement portion formed on one sheet is provided on another sheet. A pallet made of paper, wherein the pallet is formed so as to abut on at least one peripheral surface of a spar portion formed by bending the formed spar formation portion to reinforce the spar.   A cut line is formed along the opposite side of each of the sheet central portions, a girder forming portion is formed along the cut line, and a piece of the girder forming portion is bent to form a girder portion on an even portion of the side. 2. The paper as claimed in claim 1, further comprising a girder reinforcing portion for reinforcing the girder formed by the girder forming portion of the other sheet at the other even portion of the side. Pallets.   The one sheet includes at least one of a girder forming portion, a beam portion formed on the upper surface of a girder portion formed by bending the girder forming portion, and a girder portion formed by bending the girder forming portion. 2. The paper pallet according to claim 1, further comprising a girder reinforcement portion for reinforcing the girder of the surface. The girder reinforcement portions are provided on both sides in the width direction in the longitudinal direction so as to perform girder reinforcement on at least one surface of each of two girder portions provided on both sides of one side of the sheet central portion together with the other stacked sheets. The paper pallet according to claim 3, wherein a pair is provided.

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