Packaging material

Abstract

To provide a packaging material which can be easily assembled to a pallet in a box shape using a lightweight material.SOLUTION: The invention relates to a packaging material P made of cardboard which can be attached to a pallet 4 and can store a cargo G at the inside. The packaging material P is composed of: a skirt 1 which can be attached so as to surround the circumference of the pallet 4; a sleeve 2 which can be arranged at the inside of the skirt 1; and a cap 3 which is covered on an upper opening of the sleeve 2.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a packaging material that can be assembled to a pallet.

Background Art

[0002] Conventionally, when loading a plurality of loads or loads of different shapes on a cargo handling pallet (a flat pallet for integrated transportation: hereinafter simply referred to as a pallet), in view of the difficulty of stacking them thereon, an instrument for supporting the pallet is prepared to enable such stacking, which is known.

[0003] For example, Patent Document 1 discloses forming a mesh frame for covering the periphery of a cargo handling pallet by connecting metal mesh panels formed in a mesh shape, and providing a mesh-shaped metal top panel on the mesh frame, so as to stack on the top panel while accommodating a load in the mesh frame.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, generally, shortening of the cargo handling work time is required, and in the so-called 2024 problem in the logistics and transportation industries, an upper limit is imposed on the working hours of drivers, so that the demand has become prominent.

[0006] The panel described in Patent Document 1 is made of metal, and it is expected to be heavy and time-consuming to carry, and it is also expected to be labor-intensive to assemble the panel into a box shape due to its weight.

[0007] An object of the present invention is to provide a packaging material that uses lightweight materials and can be easily assembled into a box shape for the pallet and can be stacked.

Means for Solving the Problems

[0008] A first form of the packaging material according to the present invention is a cardboard packaging material that can be attached to a pallet and can accommodate loads inside. The packaging material is composed of a skirt that can be attached so as to surround the pallet, a sleeve that can be disposed inside the skirt, and a cap that covers the upper opening of the sleeve.

[0009] A second form of the packaging material according to the present invention is the one described as the first form, characterized in that a skirt fixing material is attached to the inner surface of the skirt so as not to fall off from the pallet.

[0010] A third form of the packaging material according to the present invention is the one described as the first form, characterized in that the cap is composed of a rectangular top surface portion and two pairs of edge surface portions extending downward from the periphery of the top surface portion. A cap fixing material is attached to the inner surface of the top surface portion of the cap so that a predetermined gap is formed between one pair of the two pairs of edge surface portions. The predetermined gap has a dimension that allows the upper end portion of the side surface portion of the sleeve to enter.

[0011] A fourth form of the packaging material according to the present invention is the one described as the first form, characterized in that the skirt and the sleeve can be folded and accommodated between the pallet and the cap.

Effects of the Invention

[0012] According to the packaging material of the present invention, since it is made of cardboard, it is lightweight, the skirt, the sleeve, and the cap can be easily assembled to the pallet, a plurality of loads or loads with different shapes can be accommodated inside, and further stacking can be performed on the cap. Therefore, it is possible to shorten the handling work time.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Embodiments for Carrying Out the Invention

[0014] Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to FIGS. 1 to 8. However, the present invention is not limited to the aspects of this embodiment.

[0015] In the description of this specification and the claims, the term "cargo" includes "goods", and is used not only in cargo handling operations but also when stored.

[0016] In the description of this specification and the claims, the term "rectangle" includes rectangles, substantially rectangles, as well as squares and substantially squares, and the term "cuboid" includes cuboids, substantially cuboids, as well as cubes and substantially cubes. Furthermore, in the description of this specification, the term "parallel" includes parallel and substantially parallel, and the term "orthogonal" includes orthogonal and substantially orthogonal.

[0017] Furthermore, in the description of this specification and the claims, the term "up" refers to the direction from the bottom of the pallet to the top surface of the cap, and the term "down" refers to the direction from the top surface of the cap to the bottom of the pallet. However, these terms are for convenience only and do not define the absolute position in the direction of gravity.

[0018] <Structure of Packaging Material> FIG. 1 is a perspective view of a packaging material P according to an embodiment of the present invention. FIG. 2 is a plan view of the constituent members of the packaging material P according to this embodiment, FIG. 2(a) represents the blank 1B of the skirt 1, FIG. 2(b) represents the skirt fixing member 16, FIG. 3 is a plan view of the blank 2B of the sleeve 2 according to this embodiment, FIG. 4 is a plan view of the constituent members of the packaging material P according to this embodiment, FIG. 4(a) represents the blank 3B of the cap 3, and FIG. 4(b) represents the cap fixing member 36. What is shown in FIGS. 2(a), 2(b), 3, 4(a), and 4(b) respectively shows the back side that is located on the inner surface when assembled on the pallet 4.

[0019] As shown in FIG. 1, the packaging material P according to this embodiment is made of cardboard that can be attached to the pallet 4 and can accommodate the load G inside, and includes a skirt 1 that can be attached so as to surround the pallet 4, a sleeve 2 that can be disposed inside the skirt 1, and a cap 3 that covers the upper opening (see FIG. 5(d) described later) of the sleeve 2.

[0020] With this configuration, since it is made of cardboard, it is lightweight, the skirt 1, the sleeve 2, and the cap 3 can be easily assembled to the pallet 4, a plurality of loads and loads with different shapes can be accommodated inside, the internal load G is effectively protected, and it is possible to stack on the cap 3, so that it is possible to shorten the handling work time. In addition, the loading efficiency inside the truck can be improved, it can be easily assembled by one person, and it is possible to stack on it just by covering the pallet 4.

[0021] As shown in FIG. 1, the packaging material P according to this embodiment has a shape obtained by removing the bottom from a substantially rectangular parallelepiped shape.

[0022] In this embodiment, the skirt 1 is used by joining (sewing) two blank sheets together in order to ensure sufficient size. Note that even if the skirt is composed of one blank sheet, it is within the scope of the present invention. In this embodiment, as shown in FIGS. 1 and 2(a), the two skirts 1 are joined together in a tubular shape using stitches such that the overlap 15 is laid on the skirt side surface portion 13 and the overlap 15 protrudes to the front side.

[0023] In this embodiment, as shown in FIGS. 1 and 3, the sleeve 2 is joined together in a tubular shape using stitches such that the overlap 25 is laid on the sleeve side surface portion 23a and the overlap 25 protrudes to the front side.

[0024] In this embodiment, the cap 3 is composed of a rectangular and flat top surface portion 30 and two pairs of edge surface portions 31a, 31b, 32a, 32b that extend downward from the periphery of the top surface portion 30 (bent orthogonally to the top surface portion 30). Further, as shown in FIGS. 1 and 4(a), the cap 3 is joined together in a covering lid shape using stitches such that the overlaps 33a and 33b are laid on the edge surface portion 32a and the overlaps 34a and 34b are laid on the edge surface portion 32b, and the overlaps 33a, 33b, 34a, 34b protrude to the front side.

[0025] The corrugated cardboard of the packaging material P in this embodiment is a so-called reinforced corrugated cardboard with the core strengthened mainly for the purpose of improving the compressive strength. For the sheet of grade A (so-called A flute) defined in JIS Z 1516, those with two or three cores are used (hereinafter, the two-core one is also referred to as AA flute, and the three-core one is also referred to as AAA flute). One liner is sandwiched between the multiple cores. In this embodiment, AAA flute (about 15 mm thick) is used for the skirt 1, the skirt fixing material 16, and the sleeve 2, and AA flute (about 10 mm thick) is used for the cap 3 and the cap fixing material 36. Further, in the present invention, for the corrugated cardboard sheet of the packaging material P, a high-quality water-resistant liner may be used for the outermost layer, and a water-resistant adhesive may be used for the adhesion between the liner and the core. With this configuration, the pressure resistance, impact resistance, and weather resistance are improved, the strength is increased, and it is possible to be resistant to moisture and suppress the strength deterioration of the packaging material P due to condensation in the container. In the present invention, the corrugated cardboard sheet used for the packaging material P is not limited to AA flute or AAA flute, and those combined with sheets of grade B (so-called B flute) (AB grade, AB flute, W flute), and various types of corrugated cardboard can be adopted as long as the effects of the present invention are achieved.

[0026] The pallet 4 has insertion ports on all four sides into which the claws (forks) of a forklift can be inserted and lifted, and includes those compliant with JIS Z 0601:2001. The pallet 4 is made of resin, for example.

[0027] <Blank> Moving from FIG. 2 to FIG. 4, in the blank 1B of the skirt 1 of the packaging material P in the present embodiment (also referred to as a blank sheet), as shown in FIG. 2(a), the first skirt side surface portion 11 is connected to the second skirt side surface portion 12 via the first folding line L1, and the second skirt side surface portion 12 is connected to the third skirt side surface portion 13 via the second folding line L2 parallel to the first folding line L1. The skirt 1 according to the present embodiment is composed of a pair of two sheets as described above, and the pair of blanks 1B each include a patch 15 for connecting the first skirt side surface portion 11 of one skirt 1 and the third skirt side surface portion 13 of the other skirt 1. The patch 15 is connected to the first skirt side surface portion 11 via the third folding line L3 parallel to the first folding line L1. As shown in FIG. 2(a), notches 14 are formed in the blank 1B of the skirt 1 so as to correspond to the insertion ports of the forks of the pallet 4, and two notches are formed in the first skirt side surface portion 11, and one notch is formed in each of the second skirt side surface portion 12 and the third skirt side surface portion 13. As shown in FIGS. 2(a) and 2(b), the skirt fixing member 16 to be described later is attached to the frame 116 of the first skirt side surface portion 11 without a fold in the blank 1B of the skirt 1 via an engagement screw.

[0028] In the blank 2B of the sleeve 2 of the packaging material P in the present embodiment, as shown in FIG. 3, the rectangular first sleeve side surface portion 21a has fourth and fifth folding lines L4 and L5 parallel to each other, and is connected to the rectangular second sleeve side surface portion 22a via the fourth folding line L4, and is connected to the rectangular third sleeve side surface portion 23b via the fifth folding line L5. The second sleeve side surface portion 22a is connected to the rectangular third sleeve side surface portion 23a via a sixth folding line L6 parallel to the fourth folding line L4. Further, the third sleeve side surface portion 23b is connected to the rectangular second sleeve side surface portion 22b via a seventh folding line L7 parallel to the fifth folding line L5. Furthermore, the second sleeve side surface portion 22b is connected to the rectangular first sleeve side surface portion 21b via an eighth folding line L8 parallel to the seventh folding line L7. The blank 2B of the sleeve 2 according to the present embodiment includes a patch 25 for connecting the first sleeve side surface portion 21b and the third sleeve side surface portion 23a, respectively. The patch 25 is connected to the first sleeve side surface portion 21b via a ninth folding line L9 parallel to the eighth folding line L8. Hand holes 24 are formed in the second sleeve side surface portion 22a and the second sleeve side surface portion 22b.

[0029] In the blank 3B of the cap 3 of the packaging material P in the present embodiment, as shown in Fig. 4(a), the rectangular top surface portion 30 has two pairs of first folding lines L10 and L11, and second folding lines L12 and L13 that are parallel to each other. The rectangular pair of first edge surface portions 31a and 31b are respectively connected via a pair of first folding lines L10 and L11, and the rectangular pair of second edge surface portions 32a and 32b are respectively connected via a pair of second folding lines L12 and L13. The first edge surface portion 31a is respectively connected to the first lap 33a and the second lap 34a via a pair of first folding lines L14 and L15 that are orthogonal to the first folding line L10, and the first edge surface portion 31b is respectively connected to the third lap 33b and the fourth lap 34b via a pair of first folding lines L16 and L17 that are orthogonal to the first folding line L11. As shown in Figs. 4(a) and 4(b), the cap fixing material 36 to be described later is attached to the frame 316 of the top surface portion 30 of the blank 3B of the cap 3 via engagement screws (for example, by tightening the engagement screws at three locations).

[0030] In the blank 1B of the skirt 1, the blank 2B of the sleeve 2, and the blank 3B of the cap 3 in the present embodiment, the first folding line L1 to the eleventh folding line L11 are set to be the vertical ruled lines (so-called creases) of the cardboard, and the twelfth folding line L12 to the seventeenth folding line L17 are set to be the horizontal ruled lines (so-called scores) of the cardboard. Further, as shown in Fig. 2(b), the steps of the skirt fixing material 16 are parallel to the direction orthogonal to the longitudinal direction of the skirt fixing material 16 (the vertical direction in the figure), and as shown in Fig. 4(b), the steps of the cap fixing material 36 are parallel to the longitudinal direction of the cap fixing material 36 (the horizontal direction in the figure). Note that the formation direction of the ruled lines and the direction of the steps are not limited to this, and may be formed in any direction as long as the object of the present invention can be achieved. The folding lines of the present embodiment are formed, for example, by pressing a pressing member from one side by die pressing.

[0031] <Assembly> FIG. 5 is a perspective view showing the procedure for assembling the packaging material P according to the present embodiment to the pallet 4. FIG. 5(a) shows a state where the load G is placed on the pallet 4, FIG. 5(b) shows a state where the skirt 1 is attached, FIG. 5(c) shows a state where the sleeve 2 is to be arranged inside the skirt 1, FIG. 5(d) shows a state where the cap 3 is to be placed over the upper opening of the sleeve 2, FIG. 5(e) shows a state where the cap 3 has been placed, and FIG. 5(f) shows a state where the side surface portions 22a, 23a, 22b, and 23b bent inside the sleeve 2 are straightened, respectively.

[0032] In the present embodiment, the assembly is performed in the order from FIG. 5(a) to FIG. 5(f), resulting in the packaged state shown in FIG. 1. In the present invention, the assembly of the packaging material to the pallet is not limited to the above order.

[0033] FIG. 6 is a cross-sectional view for convenience of explanation of a mechanism in which the skirt 1 does not fall off the pallet 4 according to the present embodiment, with the load not shown. FIG. 6(a) is a cross-sectional view taken along the line VIa-VIa of FIG. 5(a) showing the pallet 4 alone, FIG. 6(b) is a cross-sectional view taken along the line VIb-VIb of FIG. 5(b) showing a state where the skirt 1 is attached to the pallet 4, and FIG. 6(c) is a cross-sectional view taken along the line VIc-VIc of FIG. 5(d) showing a state where the sleeve 2 is arranged inside the skirt 1 attached to the pallet 4.

[0034] In the present embodiment, as described above, as shown in FIG. 6(b), a skirt fixing member 16 is attached to the inner surface of the skirt 1 so as not to fall off the pallet 4.

[0035] With this configuration, it does not easily fall off the pallet 4, and the sleeve 2 and the cap 3 can be assembled quickly.

[0036] In this embodiment, as shown in FIGS. 2(a) and 2(b), the skirt fixing member 16 is attached to the frame 116 of the skirt side surface portion 11 of the skirt 1 through engagement screws at three positions E. As shown in FIG. 6(b), the thickness of the skirt fixing member 16 catches on the pallet 4 so that the skirt 1 does not fall off the pallet 4. In this embodiment, the pallet has a size of 1100 mm × 1100 mm when viewed from above, the inner dimension of the skirt 1 is approximately the same, and the thicknesses of the two opposing skirt fixing members 16 are each about 15 mm. Due to the thickness of this skirt fixing member 16, it catches on the pallet 4. From this state, the sleeve 2 is inserted inside the skirt fixing member 16 of the skirt 1, so that the pair of first sleeve side surface portions 21a and 21b of the sleeve 2 rest on the pallet 4.

[0037] In this embodiment, as shown in FIG. 3, the sleeve 2 has a sixth folding line L6 formed between the second sleeve side surface portion 22a and the third sleeve side surface portion 23a, and a seventh folding line L7 formed between the second sleeve side surface portion 22b and the third sleeve side surface portion 23b. Referring to FIGS. 5(c), 5(d), and 5(e), it can be understood that the sleeve 2 is bent inward at the sixth folding line L6 and the seventh folding line L7. With this configuration, it is possible to easily insert it inside the skirt 1. Furthermore, the packaging material P according to this embodiment is provided with a configuration for straightening and fixing the bent side surface portion of the sleeve 2.

[0038] FIG. 7 is a diagram showing a state of straightening the bent side surface portion inside the sleeve 2 according to this embodiment. FIG. 7(a) is a perspective view showing a stage before inserting the hand H into the hand hole 24 and pulling it forward, with the VIIa portion of FIG. 5(f) enlarged. FIG. 7(b) is a cross-sectional view taken along the VIIb-VIIb direction of FIG. 5(e) showing a stage before inserting the hand H into the hand hole 24 and pulling it forward. FIG. 7(c) is a cross-sectional view taken along the VIIc-VIIc direction of FIG. 5(f) showing a state where the hand inserted into the hand hole 24 is pulled forward and the upper end of the side surface portion of the sleeve 2 is received and fixed in the gap between the cap 3 and the cap fixing member 36.

[0039] In this embodiment, as shown in FIGS. 7(b) and 7(c), a cap fixing member 36 is attached to the inner surface of the top surface portion 30 of the cap 3 so as to form a predetermined gap between the pair of edge surface portions 32a and 32b, and the predetermined gap is dimensioned such that the upper ends of the side surface portions 22a, 23a, 22b, and 23b of the sleeve 2 can enter.

[0040] With this configuration, the side surface portion of the sleeve 2 is fixed, and it becomes possible to effectively protect the stored load.

[0041] When the second sleeve side surface portion 22a is pulled by inserting it into the hand hole 24 in the A direction (forward) shown in FIGS. 7(a) and 7(b), as shown in FIG. 7(c), the upper end portion of the second sleeve side surface portion 22a enters the gap between the second edge surface portion 32a of the cap 3 and the cap fixing member 36, and the cap 3 moves in the B direction, and it is understood that the mutual movement is hindered and fixed.

[0042] FIG. 8 is a perspective view showing a state in which the skirt 1 and the sleeve 2, which are constituent members of the packaging material P according to this embodiment, are accommodated between the cap 3 and the pallet 4.

[0043] In this embodiment, as shown in FIG. 8, the skirt 1 and the sleeve 2 are foldable and can be accommodated between the pallet 4 and the cap 3.

[0044] With this configuration, it becomes possible to make the storage space for the packaging material P compact.

[0045] <Others> The present invention is not limited to the above-described embodiments and the modifications described herein, and appropriate changes and modifications can be made without departing from the technical idea of the present invention.

[0046] For example, as a modification of the above embodiment, four holes are provided in each of the first edge portions 31a and 31b of the cap 3, horizontally and vertically. One belt is passed through each of the four pairs of upper and lower holes, and each of the four belts is attached near the periphery of the upper surface of the pallet 4. The load G and the sleeve 2 may be sandwiched between the upper surface of the pallet 4 and the cap 3 and fixed with a belt (for example, using a buckle). Applying this configuration to the one shown in FIG. 8, the folded skirt 1 and the sleeve 2 may be accommodated between the pallet 4 and the cap 3.

[0047] In addition, regarding the replacement of the packaging material P according to the above embodiment, in the present invention, two surface portions may be joined together by applying an adhesive in addition to stitching.

Explanation of reference numerals

[0048] P Packaging material 1 Skirt 11 to 13 First to third skirt side surface portions 16 Skirt fixing member 2 Sleeve 21a, 21b First sleeve side surface portions 22a, 22b Second sleeve side surface portions 23a, 23b Third sleeve side surface portions 3 Cap 30 Top surface portion 31a, 31b First edge portions 32a, 32b Second edge portions 36 Cap fixing member 4 Pallet

Claims

1. A cardboard packaging material that can be attached to a pallet and can accommodate goods inside, wherein the packaging material is composed of a skirt that can be attached so as to surround the pallet, a sleeve that can be disposed inside the skirt, and a cap that covers the upper opening of the sleeve.

2. The packaging material according to claim 1, wherein a skirt fixing material is attached to the inner surface of the skirt so as not to fall off from the pallet.

3. The cap is composed of a rectangular top surface portion and two pairs of edge surface portions extending downward from the periphery of the top surface portion, wherein a cap fixing material is attached to the inner surface of the top surface portion of the cap so as to form a predetermined gap between one pair of the two pairs of edge surface portions, and the predetermined gap has a dimension that allows the upper end portion of the side surface portion of the sleeve to enter. The packaging material according to claim 1.

4. The packaging material according to claim 1, wherein the skirt and the sleeve can be folded and accommodated between the pallet and the cap.

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