JPH0440273B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cargo handling method using a sheet pallet and a bottom-opening sheet container. More specifically, the present invention relates to a new method for quickly, reliably, and easily carrying out cargo handling operations using cargo handling machinery and equipment by eliminating manual work by using sheet pallets and bottom-opening sheet containers.

BACKGROUND ART Various cargo handling equipment and carriers have been used to streamline operations such as loading and unloading, transporting, and storing cargo. For example, using wooden or steel pallets and forklift trucks;
Palletization systems that use sheet pallets (also referred to as slip sheets) and push-pull fork lift trucks are widely used.

Additionally, there are various types of conveyors for handling small cargoes in one piece. For example, there are box-shaped containers made of wood or steel, and various flexible conveyance devices made of cloth or plastic sheets have been proposed. Examples of flexible conveyance devices include a motsuko type (Utility Model No. 57-21559) and a packing and transportation device that combines multiple pieces of luggage into a string-like structure by combining strip-like materials (Utility Model Utility Model No. 56-38061). or,
There are flexible containers (hereinafter referred to as ``bottom-opening sheet containers'') in which sheet materials are combined into a box shape to contain cargo, and the bottom fabric opens from the center to both sides when unloading.

In cargo handling operations that use only bottom-opening sheet containers, the cargo is manually stowed each time, and then the trunk cloth and side cloth are combined to wrap and transport the cargo. Because the bottom fabric is flexible, the load is concentrated in the center, making it extremely easy for the load to shift or collapse during transportation. Also,
There is also a risk that the center part of the bottom fabric may open slightly during transportation and small cargo may fall out. Furthermore, when unloading, when the bottom fabric of a bottom-opening sheet container is divided into two parts and opened, the lower part of the cargo is moved along with the bottom fabric that is opening, so the cargo remains loaded. It is difficult to unload the cargo, and the unloaded cargo must be re-stacked or reloaded. Also, if you want to transport it to another location next time, you will have to load it again.

The purpose of the present invention is to eliminate these drawbacks in the use of open-bottom sheet containers, and to mechanize cargo handling operations to make them easier and faster, and to prevent cargo from falling off or collapsing, thereby further streamlining the process. This article relates to a cargo handling method for achieving this goal.

That is, the cargo handling method of the present invention includes (a) using a palladizer on a sheet pallet;
(b) Place the cargo, including the sheet pallets, on the bottom cloth of a bottom-opening sheet container using a push-pull forklift truck; (d) transport the sheet container containing the cargo to a desired location; (e) untie the connecting band of the sheet container; By pulling the sling upward, the bottom fabric and body fabric of the sheet container are divided into two, the bottom fabric is slid out from under the sheet pallet, the cargo is unloaded with the sheet pallet, and then transported to another location. be moved by push-pull forklift. In this way, it is characterized by completely eliminating manual cargo handling and completely mechanizing the cargo handling work.

In the above method, it may be possible to use wooden pallets instead of sheet pallets, but since the wooden pallets themselves are heavy, the transport weight increases and the freight cost for returning the pallets increases. Also, since wooden pallets are thick, loading efficiency is reduced. Furthermore, since the four corners of the pallet are square and have high friction, it is difficult for the bottom fabric of the open-bottom sheet container to come off from under the wooden pallet during unloading, and the sheet material of the container may get caught on nails or wood hangnails on the pallet. This may be inappropriate.

On the other hand, the above-mentioned sheet pallet has a small weight, a negligible thickness, a smooth and slippery surface, and has appropriate flexibility and hardness, so the above-mentioned drawbacks are avoided. This is extremely favorable.

The method of the present invention will be explained in more detail below on the basis of illustrated examples.

First, the bottom-opening sheet container will be briefly explained using an example shown in FIG. 1A.
This seat container 1 includes a bottom cloth 2, a pair of trunk cloths 3
and a pair of side cloths 4, and an opening 5 (which may be an incision that can be divided into two) is provided in the center of the bottom cloth 2 and the body cloth 3. Waist cloth 3 of opening 5
The parts are connected by a connecting band 6. Body cloth 3
A binding band 7 such as a string or band is attached to the side edge of the side cloth 4, and after placing the luggage on the bottom cloth 2, the body cloth 3 and the side cloth 4 are stood vertically and the corresponding binding band 7 is attached. They are connected to each other to form the sheet container 1 into a box shape. Further, a tightening belt 8 is attached to the outer edge of the torso cloth 3 and the side cloth 4,
After joining the binding bands 7, the tightening bands 8 facing each other are
are joined at the top of the load to ensure the retention of the load.

After the cargo is wrapped in the sheet container 1 as described above, the entire container is suspended by hoisting the sling 9 using a crane or the like, and is loaded onto a transportation means such as a truck and transported to a desired location. When unloading, after unloading the container to the position where it should be unloaded using a crane or the like, untie the connecting strap 6 and pull up the unloading sling 10 to remove the bottom cloth as described below. 2 and the trunk cloth 3 are divided into two sides, and the cargo inside the container can be unloaded.

In addition to the above-mentioned container, the bottom-opening sheet container may have a shape as shown in FIGS. 1B and 1C. In Figure 1 B and C,
Although the binding belt 7, the tightening belt 8, the sling 9, the unloading sling 10, etc. are omitted, they are not shown in Fig. 1B.
In the example of the sheet container 1a shown in , the side fabric 4 is adjacent to the torso fabric 3, and again, the bottom fabric 2, the torso fabric 3, and the side fabric 4 can be formed into a box shape by bonding them together. . Furthermore, in the seat container 1b shown in FIG. 1C, cargo is held by side bands 4' instead of the side cloth 4. The side cloth in the method of the present invention includes such a side band 4'.

The above-mentioned open-bottom sheet containers are examples of those that can be used in the cargo handling method of the present invention, and the present invention is not limited to these open-bottom sheet containers as long as they do not depart from the spirit of the present invention.

Further, the sheet pallet used in the cargo handling method of the present invention is a well-known sheet pallet having a foldable tab attached to one or more sides of an ordinary quadrilateral sheet. The materials for this sheet pallet include paperboard,
Paper such as cardboard, hard paper, cardboard, polyethylene, polypropylene, polybutene-1, poly-4
- Homopolymers, copolymers, or mixtures of thermoplastic resins such as polyolefin resins such as methylpentene-1, polyamide resins, polyester resins, and polyvinyl alcohol resins, among which polyethylene, polypropylene, ethylene or Other α- based on propylene
Polyolefin resins such as copolymers with olefins are inexpensive and have appropriate rigidity and lubricity, and are therefore suitable for the method of the present invention.

In addition, the structure of these sheet pallets includes a structure made of the above sheet material alone, a blend structure made by mixing the above resin, a foam made by blending the above resin with a blowing agent, a crosslinking agent, etc., a crosslinked product, etc. A single structure consisting of a laminate of the above-mentioned sheet materials, a woven fabric or nonwoven fabric consisting of organic or inorganic fibers, natural or synthetic fibers, an organic or inorganic network, a plate-like body such as a metal plate, an inorganic granule. Composite bodies formed by filling or adhering materials, hollow bodies consisting of a core and liner, corrugated bodies, honeycomb bodies, etc.
Sheets having various structures such as a harmonica body can be used, and there is no particular limitation. On the other hand, the thickness of the sheet pallet is determined depending on the purpose and application such as strength, price, and mode of use; for example, in the case of a single sheet pallet, a sheet pallet having a thickness of about 0.5 to 5.0 mm is usually used.

The present invention relates to a method for improving cargo handling in which a sheet pallet is used in conjunction with a bottom-open sheet container as described above, and has the advantages described at the beginning. The method of the present invention will be explained in detail below.

As shown in the process diagram of FIG. 2, a cargo 11 is placed on a sheet pallet 12. Next, the cargo 11 is placed together with the sheet pallet 12 on the bottom cloth 2 of the bottom-open sheet container 1. If the cargo has already been stacked on sheet pallets using a palletizer or the like in a packaging factory or warehouse, it is sufficient to transport them using a conveyor or push-pull lift truck and unload them onto the bottom fabric of the sheet container 1. Loading work into the sheet container 1 becomes easier.

Next, the torso cloth 3 and side cloth 4 of the seat container 1
vertically along the cargo 11, and connect the joint strip 7.
By joining [FIG. 1A], the sheet container 1 is made into a box-like shape to enclose the cargo 11, and the strap 8 is further joined above the cargo.

Next, the sling 9 of the sheet container 1 containing the cargo is lifted by a crane, forklift, etc., and the sheet container 1 is loaded onto a transportation means 13 such as a truck, freight car, ship, or large container, and transported to a desired location. do.

After the seat container 1 is suspended by the hanging strap 9 and lowered to the ground, the connecting strap 6 is released, and the bottom cloth 2 and the trunk cloth 3 of the seat container 1 can be separated along the opening 5, and the next Then, the pair of unloading slings 10 are pulled upward by, for example, the forks 14 of a forklift. By doing this, the bottom cloth 2 of the sheet container 1 slides outward from below the sheet pallet 12, and the cargo can be unloaded together with the sheet pallet 12. In addition, since the sheet pallet 12 is used, the frictional resistance between the bottom cloth 3 and the cargo is small, and the bottom cloth 3 can be easily removed by sliding, and the cargo does not collapse during this operation. do not have. Furthermore, by using the sheet pallet 12, even when a sheet container containing cargo is hung, the bottom cloth 2 is kept flat and the cargo is less likely to collapse. Furthermore, since the unloaded cargo is on a sheet pallet, it can be handled as is by a push-pull forklift truck, making subsequent cargo handling operations easier.

[Brief explanation of the drawing]

FIGS. 1A, B, and C are plan views of an open-bottom sheet container, and FIG. 2 is a process diagram showing the method of the present invention. 1...Bottom opening sheet container, 2...Bottom cloth, 3
...Body cloth, 4...Side cloth, 4'...Side band, 5...Opening, 6...Connection band, 7...Connection band, 8...Tightening band, 9...Sling band, 10...... Sling for unloading, 1
1... Cargo, 12... Sheet pallet, 14...
Folk.

Claims (1)

[Claims] 1. A rectangular bottom cloth 2, a torso cloth 3 provided on two opposing sides of the bottom cloth 2, an opening 5 made by continuously cutting out the center of the bottom cloth 2 and the torso cloth 3, and the opening. 5
at least one pair of slings 9 attached parallel to the
and a pair of unloading slings 10 attached at right angles to the opening 5. A sheet pallet 12 with approximately the same shape as the bottom cloth 2 is placed on top of the bottom cloth 2. After the cargo is loaded and packed via the sling 9, the container is loaded and transferred by lifting the sling 9, and then the unloading sling 10 is lifted.
by lifting the opening 5 upward.
A cargo handling method using a sheet pallet and a bottom-opening sheet container, characterized in that the bottom cloth 2 is slidably removed from the back side of the sheet pallet 12 by dividing the sheet pallet into two sides.