JPH0350071Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a large-sized bag belonging to the flexible container category for mass transportation or storage of powder, ore, agricultural products, etc.

(Prior art) Conventionally, in the case of this type of large one-way bag, the hanging band with a hook attached thereto was narrow, at 5 to 8 cm, relative to the bag body.
No particular consideration was given to its attachment to the bag body.

(Problem to be solved by the invention) As mentioned above, if the hanging band with a hook is narrow in relation to the bag body, the lift reach will be long when lifting and lowering with a forklift or crane, etc. In addition, the packaging is not necessarily stable due to the impact and pressure caused by stacking, and there is a drawback that the bag bulges due to the weight of the contents and is likely to cause chafing.

(Means for Solving the Problems) In order to solve the above-mentioned drawbacks, the present invention is designed to solve the above-mentioned drawbacks by adding width-wise patterns to the original fabric of the sheet base fabric constituting the bag body of a large-sized returnable bag at equal intervals in the vertical direction. A flat yarn cloth made of polyolefin resin with a reinforcing structure of At the same time, the width of the wide reinforced tissue section should be at least 1/3 or more of the torso surface, and the upper part of the wide reinforced tissue section should have a hook part that protrudes from the upper edge of the torso. A wide band with a hook is sewn to the bag body, and a hanging rope inserted through the hook part is tied tightly so that it is in a tensioned state when the body of the bag is filled with the contents.

Here, the wide reinforced weave section is defined as whether only the warp threads are made thicker than other parts, only the warp threads are made thicker than other parts, only the warp threads are made thicker in an irregular shape, or only the warp threads are made thicker. This refers to a woven fabric structure in which different materials are alternately implanted.

By adopting this configuration, the lifting reach of forklifts, cranes, etc. can be shortened, and the lifting stress can maintain the stability of the cargo, thereby improving the safety of cargo handling operations such as mass transportation and storage. In addition to ensuring quality, it also improves economic efficiency by saving materials and rationalizing sewing.

(Example) When a conventional one-way bag is hung from a belt, whether the belt itself is polyolefin or nylon, actual measurements show that the required hanging distance is 70 to 80 mm.
There is a lift reach with cm elongation, and in the case of rope hanging, it can be hung with two ropes, or with a drawstring hanging with one rope.
There is a lift reach of 50 to 60 cm, but in the case of this invention, as a result of actual measurements, it has a lift reach of 20 to 60 cm, which is about 1/2 or less than that of the conventional one.
Now I can keep it to 40cm.

Hereinafter, embodiments of the present invention will be described based on the drawings.

In the case of a large bag A with an input opening as shown in FIG. 1 and a large bag B with an open input opening as shown in FIG. 2, the bag bodies a and a' The raw fabric s of plain weave and endless weave as shown in FIG.
It is woven from flat yarns made of polyolefin resin such as polyethylene.

The raw fabric s is provided with wide reinforcing structure portions 1 at regular intervals in the longitudinal direction.

First, the large bag A with a slot will be explained.

When a bag body a is constructed using such a raw fabric s as a sheet base fabric, this longitudinally wide reinforcing structure part 1
are placed at the center of each side of the rectangular cylindrical body 2. At this time, the width of the wide reinforcing tissue portion 1 is at least 1/3 or more of the width of each side of the trunk portion 2. For example, the bag a has a size of approximately 90 cm square and a height of approximately 120 cm, and the wide reinforced tissue portion 1 is
Its width is 30 to 60 cm, and this part has a wide hanging band b with hooks 3 on its upper part.
is sewn from the outside surface.

Although not shown, a wide hanging band with a hook may be sewn on the inside in order to print on the surface or to increase commercial value.

The width of this wide suspension band b is slightly narrower than the width of the wide reinforced tissue part 1, and the length of the sewn part is about 30 to 50 cm from the top. Although it is sufficiently durable, it is not particularly limited. Around the upper part of the body part 2,
A lid body 5 with a slot 4 is sewn on, and a lace 6 is attached to the slot 4.

Furthermore, a hanging rope c is inserted through the hook 3 of the wide hanging band b and is tied tightly at the end.
This hanging rope c is designed to be in a tensioned state when the body 2 of the bag body a is filled with the contents.

Although the bottom of the bag a is not shown, a bottom part with an outlet similar to the inlet 4 is sewn to the lower side of the body 2 in order to take out the contents from inside the bag a. There is.

The end portions of the sheet base fabric of the original fabric s are joined together to form the bag body a, and that portion is reinforced by sewing a hanging band b with a hook.

Also, to explain the large bag B with an open input port, the bag body a' is made of an endlessly woven sheet base fabric, and the input port 4' extends directly from the body 2'. Although not shown, the outlet at the bottom is similar to the inlet.

The hanging band b' with a hook 3' and the hanging rope c' are the same as those of the large bag A with a slot, and the reference numeral 6' is a string for the slot 4'.

Next, the original fabric s that will become the sheet base fabric of bags a and a'
The wide reinforced tissue portion 1 will be explained.

For example, in the case of polypropylene, the original fabric that becomes the sheet base fabric for conventional bags is generally 1500 Dr, and is generally composed of 15 pieces/inch in length x 15 pieces/inch in width, or in the case of polyethylene. It is considered standard to consist of 1700 Dr and 15/inch x 15/inch implants, but a specific example of the wide reinforcing tissue portion 1 in the present invention is as follows.

When using polypropylene yarn, 1 Add only the warp threads in the wide reinforced weave area.

1500 Dr 18 lengths/inches x 15 widths/inches 2 Increase only the Dr of the warp threads in the wide reinforced tissue area.

2000Dr vertical 15/inch x 1500Dr horizontal 15/inch 3 A different type of yarn is used for the warp of the wide reinforced tissue part, and a polypropylene flat yarn is used for the weft.

Danlan type (polypropylene monofilament with irregular shape) 3000Dr vertical 12/inch x flat yarn 1500Dr horizontal 15/inch 4 Only the warp in the wide reinforced tissue area is made of polypropylene monofilament yarn 1500Dr and 2000Dr every other yarn. , or appropriately alternately arranged and woven by inserting 1500Dr flat yarn and 15 yarns/inch into this.

Note that the reinforcing threads for the warp threads of the wide reinforcing weave portion may be different from the original fabric of the sheet base fabric, such as nylon.

(Effects of the invention) The present invention provides a bag body composed of a sheet base fabric made of flat yarn cloth made of polyolefin resin, and a wide reinforced tissue portion in the center of each side of the body. The width is at least 1/3 of the width of the trunk
In addition to the above, a wide band with a hook was sewn to the upper part of this wide reinforced tissue part so that the hook part protruded from the upper edge of the torso, so despite the relatively simple structure. First, the wide reinforced tissue portion and the wide band with hooks are integrated, and the entire bag body becomes rigid and self-supporting, which prevents any damage during the filling operation. It can now be operated without the need for assistive devices, and
When the bag is not filled with contents and is not in use, it can be folded from a part other than the wide reinforced tissue section, so the bag does not take up much bulk when stored or transported, and in any case, it is easy to handle. It becomes easier to do.

In addition, the hanging rope inserted through the hook of the wide band is tied so that it is under tension when the bag is filled with the contents, so it is possible to fill the bag with the contents and close the inlet. When a forklift is inserted into the suspension rope and lifted, the contents inside the bag are pushed away by the rigid and wide reinforcing tissue parts and the band with hooks, and the bag becomes square and cylindrical as a whole. At the same time, the upper surface layer is flattened and the overall appearance of the package becomes square and cylindrical.This allows the wide band with hooks sewn to the wide reinforced tissue to significantly shorten the lift reach. In addition, when transporting or storing the items in a pile, lifting and moving or stacking the items can be carried out safely and easily, reducing dead space and preventing the cargo from collapsing. .

Furthermore, since the hook part of the wide band with hooks is tied with a hanging rope, the forks of the forklift can be inserted from four directions, and even though there are four hook parts, the wide band Therefore, the hanging part effectively exhibits the effect of 8-point hanging, and is stable, and since the original fabric of flat yarn cloth made of polyolefin resin is used as the sheet base fabric of the bag, the contents are It is resistant to the piercing of instruments for inspection and load rubbing on the body, and the wide band is sewn so that the hook part protrudes from the upper edge of the body, so the suspension band can be shortened. This makes it possible to save on materials and rationalize sewing, and in conjunction with using polyolefin resin flat yarn cloth as the sheet base fabric, it is possible to reduce the cost of the product. can contribute.

As described above, the present invention combines the material of the base fabric of the bag body, the wide reinforcing tissue part in the body, the wide band with the hook, the hanging rope inserted through the hook part, etc., and has a simple structure. Regardless, it is extremely effective in operations such as before filling the bag with internal medicines, transporting it after filling, stacking, etc., and is useful for operational safety and stability and cost rationalization. .

[Brief explanation of the drawing]

The drawings are of the large-sized bag of the present invention, and are shown in the first drawing.
The figure is a perspective view of a large bag with a slot.
The figure is a perspective view of a large bag with an open input port, Figure 3 is a plan view of a portion of the original sheet fabric that makes up the bag, and Figure 4 is an enlarged view of part of the structure of the original fabric. figure,
Figure 5 is a perspective view of the large bag shown in Figure 1 filled with the contents and a forklift inserted, and Figure 6 is a perspective view of the large bag shown in Figure 2 filled with the contents. FIG. Code A...Large bag with slot, B...
...Large bag with open slot, a, a'...
...Bag body, b, b'...Wide hanging band with hook,
c, c'...Hanging rope, s... Raw material, 1... Wide reinforced tissue section, 2, 2'... Body part, 3, 3'... Hook, 4, 4'... Input port, 5 ...Lid body, 6,6'...
...Tightening cord.

Claims (1)

[Claims for Utility Model Registration] (1) An original fabric of flat yarn cloth made of polyolefin resin with wide reinforcing structures arranged at regular intervals in the longitudinal direction is used as a sheet base fabric, and with this, the above-mentioned wide width The reinforcing tissue section should be located at the center of each side of the trunk constituting the bag, and the width of the wide reinforcing tissue section should be at least 1/3 or more of the trunk surface, and the width should be above the wide reinforcing tissue section. A wide band with a hook is sewn onto the body so that the hook protrudes from the upper edge of the body, and when the body of the bag is filled with contents, the hanging rope inserted through the hook is tensioned. A large bag that is tied to match the condition. (2) For the wide reinforced weave in the longitudinal direction, make only the warp threads cut more than other parts, make only the warp threads thicker than other parts, insert thick warp threads of unusual shape, or cut only the warp threads. The large-sized bag according to claim 1, which is constructed by inserting bags of different thickness alternately.