JP3414214B2 - Pallet packing style - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for preventing the collapse of loads when transporting a wound body of fibers.

[0002]

2. Description of the Related Art A spun fiber is wound around a bobbin or a core material to form a cylindrical fiber winding body. In addition, from the viewpoint of transportation efficiency, the wound body of this fiber is often transported in the state of only the fiber without the bobbin or the core material. Here, the wound body of fibers is a fiber wound into a cylindrical shape and includes both a state in which a bobbin or a core material is provided or a state in which the bobbin or the core material is removed.

In order to carry the wound body of these fibers, the following packing method is generally used. On a flat pallet 2, a plurality of wound bodies 1 of fibers are regularly arranged without gaps and are stacked in several stages. This state is shown in FIG. A semi-circular protector 10 made of plastic (FRP) or hardened paper is provided at the corner of the stacked fiber winding body.
Attach. Alternatively, a plastic or hardened paper pipe 11 is inserted between the stacked windings of fibers. Then, the wound body of fibers is tied up with a polypropylene band 3 (hereinafter referred to as a PP band) or the like for each step and fixed so as not to be displaced from each other. This state is shown in FIGS. A shrink bag 4 covering all of the wound body 1 of fiber, protector 10 or pipe 11 (hereinafter referred to as a protective material) and pallet 2 is covered, and heat is applied to the shrink bag to shrink the shrink bag. FIG. 3 shows a state in which the protector 10 is used and the shrink bag is heat-shrinked. In this way, the wound body of stacked fibers is integrated with the pallet so that the load does not collapse even during vibration or shock during transportation.

[0004]

However, the conventional techniques have the following problems. A large number of man-hours are required to integrate the wound body of fibers and the pallet, resulting in poor work efficiency. In some cases, the protective material may be disposable, and it requires a large amount of packaging material costs or a storage location for it. In the manufacturing industry, it is clear that the transportation process does not add any added value to the product. Therefore, it is desirable to simplify the man-hours and materials used for packaging the product as much as possible.

The present invention has been made by paying attention to the problems existing in the prior art. It is an object of the present invention to provide a pallet packing form that does not cause a load collapse by using a minimum required number of man-hours and materials in packing a wound fiber body.

[0006]

DISCLOSURE OF THE INVENTION The present invention is stacked in a plurality of stages.
And each row vertically and horizontally.
A plurality of fiber windings arranged regularly are
A wound body of fibers tightened by band winding
And the pallet on which it is placed is wrapped in a shrink bag.
And integrated, and only the four corners of the integrated product
Adhesive tape on the bottom of the one-piece so that they cross each other
Stick it around the surface to reinforce the corners.
This is a pallet packing form.

The packing form of the pallet according to the second aspect of the invention is the invention of the first aspect, in which the adhesive tape is fiber reinforced.

The packing form of the pallet according to the invention of claim 3 is the same as that of the invention according to claim 1 or 2.
The adhesive tape has a rubber adhesive .

According to a fourth aspect of the present invention, in the pallet packaging form, in the invention according to any one of the first to third aspects, the fiber winding body is a glass fiber winding body .

According to a fifth aspect of the present invention, in the packing form of the pallet according to any one of the first to fourth aspects, a stretch film is wound on a shrink bag whose corner portion is reinforced by an adhesive tape. It is a thing.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below. The structure of the present invention is as follows. A winding body of a plurality of fibers is regularly arranged on a pallet without a gap, and the winding body of these fibers is stacked in several stages. The wound body of these fibers is tightened at each stage with a band having high strength such as a PP band. Then, the fiber winding body and the pallet are covered with a shrink bag, and heat is applied to the shrink bag to shrink the shrink bag, and the fiber winding body and the pallet are integrated (hereinafter, this state is referred to as an integrated pallet).
Let

Here, the fiber wound body means a fiber wound into a cylindrical shape as described above. In this cylindrical shape, the sizes of the inner diameter and the outer diameter may change according to the axial direction of the fiber depending on the winding method of the fiber. In other words, the wound body of fibers may be provided with a bottom surface that can stabilize the axis of the wound body on the pallet.

The shrink bag is a large bag made of a resin film, which is wrapped with a pallet and a wound body of fibers, shrinks when heat is applied, and is integrated with these inclusions. Is. The material of the shrink bag is not particularly limited, but polyethylene is preferable. Polyethylene is preferable because it has a high heat shrinkage and has good adhesion to the inclusion.

This pallet-integrated body is different from the conventional packaging form in that the protective material between the winding bodies of the fibers and the corner portion is removed. When the pallet is carried as a single body, the wound body of fibers easily collapses. Since the wound body of fibers is integrated by a PP band or the like in each step, the deviation within the step is unlikely to occur. However, it is the frictional force of the wound body of fibers and the shrink bag that fixes the relative position between the steps. Therefore, when a force exceeding the frictional force is applied, the force is entirely supported by the shrink bag. The shrink bag is not strong enough to be easily broken. With the conventional packing method,
I used a protective material to counter this gap. That is, when the protective material is not used, the shrink bag alone cannot counter this force, and thus the pallet-integrated object collapses. In this invention, instead of the protective material, an adhesive tape is attached to the corner portion from above the shrink bag.

By sticking the adhesive tape to the corners of the pallet-integrated object, it is possible to effectively prevent the collapse of the load during transportation. By adhering the adhesive tape to the corner portion of the shrink bag, the tensile strength of the shrink bag is improved. This is because the adhesive tape disperses and supports the force applied to the shrink bag.

Further, since the work of attaching the adhesive tape to the shrink bag is very simple, the number of man-hours required for the packing work is small. In addition, the adhesive tape has the advantages of being less expensive than conventional protective materials and requiring no storage space. Therefore, the packing form of the pallet of the present invention can prevent the collapse of the pallet-integrated product with the minimum required man-hours and materials.

The adhesive tape is preferably fiber reinforced. Here, the fiber-reinforced adhesive tape is one in which fibers are contained therein, and the adhesive tape itself has high tensile strength. Therefore,
The strength of the shrink bag can be further increased by using the fiber-reinforced adhesive tape. The fibers contained in this adhesive tape are not particularly limited, but polyester threads are preferable. Since the polyester yarn is a synthetic fiber, it has a good compatibility with the adhesive material and is widely available on the market, so that it can be easily obtained.

In the adhesive tape, the direction of the fibers is
It is preferable that they are aligned in one direction. By aligning the fibers in one direction, the tensile strength of the adhesive tape becomes extremely high in one direction. Therefore, by directing the fibers in the direction in which the pallet-integrated body receives a tensile force, it is possible to effectively prevent the collapse of the pallet-integrated body.

The material of the adhesive material of the adhesive tape is not particularly limited, but a rubber adhesive is preferable. Specifically, a natural rubber adhesive is suitable. These rubber-based adhesives have good adhesiveness to polyester yarns and high elasticity. Due to its high elasticity, the pressure-sensitive adhesive tape using the rubber-based adhesive is stretched and attached to the shrink bag. The stretched and attached adhesive tape not only disperses and supports the force applied to the shrink bag, but also constantly tightens the shrink bag due to its elastic force, which makes it more difficult for the load to collapse. The elongation rate of this adhesive tape is preferably 5 to 50%, and more preferably 5 to 30% in terms of its length. Within this range, the operator can easily work while checking the elongation of the adhesive tape, which is preferable.

The type of fiber winding body is not particularly limited. The present invention exhibits the same effect as long as it is a cylindrical fiber, regardless of whether it is an organic fiber or an inorganic fiber. The present invention can also be used to transport a glass fiber roll having a relatively high specific gravity.

The glass fiber has a specific gravity of 2.54, and is made of nylon 1.15 or acrylic fiber 1.1.
8 times more than 8. Therefore, when the glass fiber roll is transported in the packaging form of the present invention, the adhesive strength of the adhesive tape to the shrink bag is preferably 0.5 to 3 kgf / 25 mm, and more preferably 1 to 1.2 kgf / 25 mm. Is preferred. When the shrink bag and the adhesive tape are used, the adhesive strength between them can be obtained.

The adhesive tape is preferably attached to all corners of the pallet-integrated product. By being attached to all the corners, it is possible to prevent the fiber winding body from being displaced in all directions. Further, the number of adhesive tapes attached to each corner is not particularly limited,
Two is usually sufficient. However, if a large force is applied to the corners, such as when the number of stages of the wound body of fibers is increased, or when fibers having high specific gravity are carried, it is necessary to increase the number.

The method of applying the adhesive tape is not particularly limited, but it is preferable to cross at least two adhesive tapes at the corners of the pallet integrated product. Specifically, it is a method of sticking the adhesive tape shown in FIG. By being attached in this manner, it is possible to similarly counter any force from any direction. That is, the method of applying such an adhesive tape is preferable because there is no weakening direction. During actual transportation, the force applied to the wound body of fibers is from all directions. Therefore, the sticking method in which the adhesive tapes intersect at the corners is an ideal sticking method in the actual transportation of the product.

The position where the adhesive tape is attached is not particularly limited as long as it is a corner portion of the pallet integrated product, but it is preferable to reach the lower end of the pallet.
Specifically, as shown in FIG. 1, it is preferable that the adhesive tape is wrapped around the bottom surface of the pallet and attached.
By sticking the adhesive tape in this way,
The integrity of the pallet-integrated product is further enhanced, and it is even more difficult for a load to collapse.

When the number of stacked layers of the wound body of fibers is large or when the wound body of fibers having a large mass is transported, the above-mentioned adhesive tape may be attached and a stretch film may be further wound. A specific example is shown in FIG. By thus winding the stretch film 6 around the pallet-integrated body, the pallet-integrated body is further tightened.

The method of winding the stretch film is not particularly limited, but it is preferable that the stretch film is wound so as to be wound around the pallet and the lower stage of the fiber winding body. This is because the largest force is applied to this part during actual transportation.
Further, the stretch film can be wound around the bottom surface of the pallet so as to be wound around the bottom surface of the pallet, thereby further enhancing the integrity of the pallet integrated body.

The material of the stretch film is not particularly limited, but a polyester film is preferable. This is because the polyester film has high extensibility and is not easily broken. The thickness of the stretch film is preferably 10 to 100 μm, more preferably 20 to 50 μm. This is because the stretch film in this range is easily stretched, so that the winding work is easy and the stretch film is in close contact with the pallet integrated product. The number of times the stretch film is wound is not particularly limited. It can be selected as needed.
Normally, it is wrapped around the pallet unit one or three times.

[0028]

EXAMPLES The present invention will be specifically described below with reference to Examples and Comparative Examples.

(Example 1) Wooden pallet 2 (1, 10
0mm square, height 150mm, weight 25kg), glass fiber roll 1 (inner diameter 100mm, outer diameter 275mm, height 275)
mm, weight 18.5 kg), 16 pieces were regularly arranged as shown in FIG. At this time, the total weight of the pallet and the glass fiber roll was 1,200 kg. The PP band 3 was wound around each stage of the glass fiber roll and tightened so that the relative position of the glass fiber roll did not change. Further, the pallet and the wound body of glass fiber were covered with a shrink bag 4, and these were heated and integrated. The shrink bag was polyethylene with a thickness of 150 μm.

Thereafter, the adhesive tape 5 having a width of 12 mm and a length of 500 mm is wrapped around the bottom surface of the pallet-integrated product.
Were pasted so that they would intersect at the corners. In the sticking work, the worker performed the sticky tape 5 while stretching it. This adhesive tape has a polyester fiber as a reinforcing material in the length direction, and uses natural rubber as the adhesive material. The adhesive strength between the shrink bag and the adhesive tape was 1.2 kg / 25 mm. The vertical crossing angle between the two adhesive tapes was about 60 degrees. This packing form is shown in FIG.

A tilt impact test was conducted on the pallet in this packaging form. In this tilt impact test, an object is slid from the top of a tilt table, the object is made to collide with a wall provided below the tilt table, and the change of the object with respect to a constant impact is measured.

As a result of the tilt impact test, it was not possible to confirm the damage of the shrink bag even if the limit capacity of 35 G of this tilt table was added. That is, the load collapse did not occur.

Generally, it is generally said that the impact on an object being transported is 30 G or less,
The occurrence rate is 98% or more. Furthermore, the impact rate of 30 to 40 G is 1%, and that of 40 G or more is about 0.3%. That is, the fact that the packaging form of this embodiment can withstand an impact of 35 G means that the packaging form of the pallet of the present invention causes almost no collapse of loads during normal transportation.

Comparative Example 1 As shown in FIG.
A plastic protector 10 was applied to each corner of the same glass fiber roll and tightened with a PP band.
Here, the protector 10 has a thickness of 5 mm and a width of 270 mm,
The length is 1,050 mm, the inner diameter is the same as the outer diameter of the glass fiber roll, and the glass fiber roll is in close contact with the glass fiber roll. Then, as in Example 1, a shrink bag was covered and heat-shrinked to obtain a pallet-integrated product. Figure 3 of this pallet
Shown in.

This pallet-integrated product was subjected to the above-mentioned tilt impact test, and its impact strength was measured. As a result of the tilt impact test, a part of the shrink bag was damaged at the impact level of 5 G, and the pallet-integrated item collapsed.

(Example 2) The pallet packing shown in Fig. 1 was carried out in the same manner as in Example 1, and a stretch film 6 of polyester having a thickness of 25 µm was further wrapped around the pallet in a quadruple manner. The width of the stretch film is 500
mm, wrapped around the bottom of the pallet. Therefore, the lower half of the packing form of this pallet is covered with the stretch film. The packing form of this pallet is shown in FIG.

This pallet is loaded on a truck, 600 km
The actual running test was conducted. As a result, no load collapse occurred.

(Comparative Example 2) In Example 2, the stretch film was wrapped in four layers without attaching the adhesive tape on the shrink bag, and an actual running test of 600 km was conducted. As a result, the shrink bag and the stretch film were damaged and the load collapsed.

From a comparison between Example 1 and Comparative Example 1, it can be seen that when the adhesive tape is used, the strength is higher than when the protective material is used, and the load collapse is less likely to occur.

Comparing Example 2 with Comparative Example 2, it can be seen that the stretch film improves the strength of the shrink bag, but it cannot withstand actual transportation by itself. That is, it is understood that the adhesive tape is effective for improving the strength of the shrink bag.

The number of glass fiber rolls placed on the pallet is expressed by vertical × horizontal × number of stages, 2 × 2 ×
2, 3x3x2, 3x3x3, 3x3x4, 4x4x
2, 4 × 4 × 3, 3 × 4 × 3, 5 × 4 × 3, and the actual running test was performed under the same conditions as in Example 2. As a result, the load collapse of the wound body of fibers did not occur.

Further, in the packing form of the pallet of the present invention, it is possible to make a cut in the shrink bag and the stretch film at the mouth portion of the pallet so that the forklift claw can be inserted therein. Since the shrink bag is sufficiently reinforced with the adhesive tape, the above-mentioned slight incision does not pose a problem in actual use.

[0043]

Since the present invention is constructed as described above, it has the following effects. In the packing form of the pallet of the invention described in claim 1, since the pallet on which the wound body of the fiber is placed is covered with the shrink bag and the corner portion is reinforced with the adhesive tape, the force applied to the shrink bag by the adhesive tape. It is possible to prevent the load from collapsing effectively with a minimum of materials and man-hours.

Furthermore, a pallet wrapped in a shrink bag is used.
Cross the adhesive tape at one corner of the
Since it is attached by applying it to the force in all directions applied to the shrink bag
On the other hand, load collapse can be effectively prevented.

[0045] Furthermore Packaging of pallets of the invention described in claim 1, scratch viscous adhesive tape of the pallet and shrink bags
Since it is attached so as to wrap around the bottom surface of the body, it is possible to further improve the integrity of the pallet integrated body.

The pallet packing form of the invention according to claim 2
In the invention according to claim 1, the adhesive tape is
Since it is reinforced, it reduces the strength of the shrink bag.
Can be further improved, and more effectively prevent load collapse.
You can stop.

According to a fifth aspect of the present invention, the pallet is packaged in the form described in any one of the first to fourth aspects, in which a stretch film is wound on a shrink bag whose corners are reinforced with adhesive tape. Therefore, it is possible to further improve the integrity of the pallet-integrated body and prevent the load from collapsing more effectively.

[Brief description of drawings]

FIG. 1 is a perspective view of a pallet packaging form of the present invention.

FIG. 2 is a perspective view of a packing form of a pallet using a stretch film.

FIG. 3 is a perspective view of a conventional packaging form.

FIG. 4 is a perspective view of a pallet on which a wound body of fibers is placed.

FIG. 5 is a perspective view of a main part of a conventional packaging form.

FIG. 6 is a perspective view of a main part of a conventional packaging form.

[Explanation of symbols]

1 Fiber roll 2 pallets 3 PP band 4 shrink bags 5 adhesive tape 6 Stretch film 10 Corner protection material (protector) 11 Pipe protection material

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-57-194907 (JP, A) JP-B 5-75605 (JP, B2) JP-B 56-12534 (JP, B2) JP-B 2- 10010 (JP, B2) Japanese Patent Publication 3-60748 (JP, B2) Actual Public 4-49048 (JP, Y2) Actual Public 50-21002 (JP, Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) B65B 13/00-13/34 B65B 27/00-27/12 B65B 53/00 B65D 67/00-79/02 B65D 81/18-81/30 B65D 81/38

Claims (5)

(57) [Claims] 1. Stacked in a plurality of stages, and each scent
Multiple units in the vertical and horizontal directions.
The multiple wound fiber bundles are wrapped by band
Ri winding body and palette which is placed in the fiber being clamped and integrated with encapsulated with shrink bags, the integral
Each other exchange the adhesive tape only to each corner of four of the monster
Stick it so that it fits in and wraps around the bottom of the integrated object
Packaging of put ing to reinforce the corner portion palette. 2. The pallet packing form according to claim 1, wherein the adhesive tape is fiber-reinforced. 3. The adhesive tape has a rubber adhesive.
The packing form of the pallet according to claim 1 or 2 . 4. The fiber winding is a glass fiber winding.
The packaging form of the pallet according to any one of claims 1 to 3 . 5. The packing form for a pallet according to claim 1, wherein the stretch film is wound on a shrink bag whose corners are reinforced with the adhesive tape.