JPS5811699Y2 - flexible container - Google Patents

Description

[Detailed description of the invention] This invention relates to a so-called flexible container, which is a transportation package that can pack a certain amount of various items for land transportation, ship transportation, etc.

The problem with this flexible container is the bag's tear resistance against the load that is applied to the lower part of the container when it is dropped or piled up during loading.However, with conventional products, all bags are made by sewing; Since the bottom cloth was sewn into a circle and then cut into a circular shape, the fabric would be misaligned at the seam in the case described above, and the bag would easily tear or tear.

For this reason, a separate reinforcing cloth was sewn to the body of the bag, but in this case too, the sewing threads of the reinforcing cloth tended to misalign the fabric of the bag, and it was not possible to sufficiently prevent the bag from breaking. It is.

Furthermore, the conventional product had a major problem in the method of attaching the hanging string.

In other words, in the conventional product, the opening end of the bag is bent inward and sewn to form a string passage part (D), and the string passage part is formed from a separate cloth and sewn to the body of the bag body. However, in either case, it was not strong enough to withstand the load applied during hanging, and there was a risk of damage to the string passage, so it was sewn to the bag body. In the case of products, there is a risk that the fabric of the bag may be misaligned, causing the bag to break, or if the contents are powder or granules, they may spill out from the joints.

In consideration of the load when hanging, a hanging belt is buttoned at the bottom and sewn across the cross, and the body part is also sewn by machine, but this often causes misalignment of the fabric of the body part and tears. There was a risk that it would cause a bag.

Furthermore, in the case of sewing, the volume of the empty bag inevitably increases due to the overlapping of the fabrics, and as mentioned above, it is necessary to sew on a separate reinforcing cloth or string loop, or sew on a hanging belt. Moreover, they also had the disadvantage of being bulky, making it even more inconvenient to store and transport empty bags.

Therefore, the purpose of this invention is to eliminate the above-mentioned drawbacks and difficulties, and to provide a flexible container that has excellent bag tear resistance, has a small empty bag volume, and is easy to handle. Another feature is that the string loop part is made of seamless, integral weave.

In other words, as mentioned above, in view of the fact that when bags are made by sewing, misalignment occurs in the fabric, all -
This makes the bag significantly more resistant to breakage, and the strength of the string loop is also strong, and unlike when it is attached by sewing, there is no slippage of the bag fabric. Furthermore, the volume of the empty bag could be significantly reduced.

The details will be explained below according to the drawings shown as an example. 1 is a bag integrally sewn using synthetic fiber thread such as polypropylene, and string loops 2 are provided in the upper and lower parts.
, 2', and from this string passage part 2.2' to the upper and lower end edges 1
Here, an upper cover piece 3 and a bottom cover piece 3' are each folded inward to cover the contents.

However, in the button of this embodiment, the edge of the bottom cover piece 3' forms a closed bottom part 4 by opening.

The string passages 2 and 2' are integrally woven when the bag 1 is woven, and as shown in FIGS. It is woven into two pieces and integrally formed at the contact part.

That is, the upper cover piece 3 is constructed with a cylindrical weave, and the cylindrical weave is stopped at the string passage part 2, and the weaving method is changed so that the outer fabric opening and the lining fabric opening are each divided into two pieces of fabric, When the appropriate density and length are achieved, the cylindrical weave is resumed, and the weaving method is changed again at the lower string-passing section 2', and the string-passing section 2' consisting of the front and back four pieces of fabric is woven. Then, the bottom covering piece 3' is woven by returning to the cylindrical weave, and finally the closed bottom part 4 is formed by opening the weave.

5, 5' is a rope that is inserted through the string passages 2, 2' and is used for both purpose and hanging. It is inserted between two pieces of fabric that are each woven separately from the fabric and the lining fabric, and at the right end in Figure 1, the blind woven selvage is penetrated and exposed to the outside, and at the left end, it is inserted between two pieces of fabric. It is led out from the opening that is woven in the shape of an opening.

In addition, as shown in Figure 9C, the outer fabric A and the lining fabric, which are woven into two pieces, are separated from each other even if they are separated from each other, as shown in Figure 9A and B. They may also be in an integrally connected state as shown in FIG.

The former method is easy to weave, but when filling with powder or granules, there is a risk that the contents may spill out from the openings on both sides, so the latter weaving method is preferred.

In Figure 3 T, a indicates the warp and b indicates the weft.

Reference numerals 6 and 6' denote reinforcing bands to prevent the bag from breaking, and these are woven in an appropriate number at appropriate locations in the length and width of the bag body 1. For example, the number of warp or weft threads is buttoned in the corresponding areas to increase the number of reinforcing bands that are greater than the fabric portion of the bag body 1. The fabric portion of the bag 1 may be made stronger than the fabric portion of the bag 1 as appropriate by increasing the number of yarns, or by weaving with yarn stronger than the yarn that makes up the fabric portion of the bag 1, or by changing the weaving structure. It is in a woven state.

These reinforcing bands 6, 6' are provided as appropriate when particular strength is required, and there is no particular need to provide them in the case of ordinary, relatively lightweight transported items.

The flexible container of this invention has the above-mentioned structure, and when filling the contents, the top and bottom cover pieces 3, 3' are folded inward as shown in FIG. Next, the ropes 5, 5' inserted through the upper and lower string passages 2.2' are pulled and tightened to obtain the packaged state shown in FIG. 6.

In this case, since the top cover piece 3 and the bottom cover piece 3' are folded inward as described above, the contents are covered by the cover pieces 3 and 3' at the top and bottom in the packaged state. This, together with the tightness of the ropes 5 and 5', creates a completely closed state, and even when filled with powder or granules, there is no risk of them spilling out.

In particular, if the open weave bottom 4 is configured as shown in the figure, it will be a perfect wall and there will be no leakage from the contact areas.

However, even if the open-woven bottom 4 is not provided, and the same open bottom is used as the top, the contents will still be received by the bottom cover 3' and the rope 6, as described above.
Since it is completely sealed by ', there is almost no leakage, even if it is powder or granules.

At the time of loading or landing, lifting and lowering can be done easily by hooking the hook of the hoist to only the rope 5 or to both the rope 5 and the rope 5'.

The product of this invention is as described above, and since the bag body is sewn integrally, it is obvious that the bag breakage resistance has been significantly improved. Since it is woven, the strength of the string passage part itself is high, and there is no risk of misalignment of the fabric of the bag, which is different from the construction in which it is sewn to the bag.

In addition, each cover piece is provided at the top and bottom to cover the contents, so together with the tightness with the rope, both the top and bottom are completely closed, resulting in a complete package. This has the advantage that the contents will not spill out even if stacked vertically, horizontally, or upside down, making it convenient to handle.

Furthermore, when it comes to discharging and taking out the contents, it is a matter of course that the contents can be taken out from the top, and it also has the advantage that it can be easily taken out from the bottom.

That is, when an open weave bottom is provided as shown in the figure, when the rope 5' is loosened, the bottom will sag due to the weight of the contents, so if this is partially or completely cut, the contents can be easily removed. It can be discharged without leaving the bottom open.
If it has an open shape, it can be discharged very easily by simply loosening the rope 5'.

In addition, even if the bottom of the open weave is cut as mentioned above, it can be used for the next packaging in the same open state as before. The same is true.

In addition, since all the constituent parts of the product of the present invention are integrally woven, it is not as bulky as conventional products, and has the advantage that empty bags can be stored and transported extremely easily.

In addition, as in the example shown in the drawing, if an appropriate number of reinforcing bands are woven in appropriate locations in the vertical and horizontal directions of the bag, the bag tear prevention effect is almost complete, and even when the contents have a considerable weight. It is possible to create a strong and flexible container that will never break even if the container is damaged.

In this case, since the button is formed by integral weaving, the volume of the empty bag can be kept to a very small amount.

However, the yarn used for weaving the main island is not limited to the exemplified synthetic fiber yarn, but yarns made of various materials may be used as long as they have equivalent strength.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the flexible container according to this invention, and is shown in a state where it is not filled with contents. FIG. 2 is a left side view of the same, FIG. 3 is a right side view of the same, and FIG. 4 is a longitudinal sectional view of the front view. Figure 5 is a cross-sectional view of the same button before filling, Figure 6 is a front view after filling is completed, Figure 7 is an enlarged cross-sectional view of the main part of the lace threading part, showing the state of the weave of only the outer fabric. , FIG. 8 is an enlarged perspective view of the lace threading part, and FIG. 9 is a horizontal end view of the lace threading part illustrating the weaving state and the lace threading state. A is a view corresponding to FIG. 1, and B and C are the other side. 1... Bag body, 2, 2'... Double passage part, 3, 3'...
Upper covering piece/lower covering piece, 5, 5'...rope, i...
Outer fabric, opening... lining fabric.

Claims (1)

[Scope of utility model registration request] A bag body with an open or closed bottom, which has string passages in the upper and lower parts, and an upper cover piece and a bottom cover piece that are folded inward from the string passage parts to the upper and lower edges. (b) The string passing part is made by buttoning the front and back fabrics at each contact part when weaving the bag body, and weaving the two pieces at the same time.