JPS632498Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a sandbag with a new structure.

Fig. 1 shows a sandbag bag with a conventional structure, in which a bag body 1 formed into a cylindrical body is used to close the bag mouth m.
Fold the upper edge outward by a certain width S, and insert the string through hole 2.
This is done by forming a bag, passing the string 3 through the hole 2, storing soil or the like in the bag, and then tightening both ends of the string 3.

By the way, since the above-mentioned string passing hole 2 is created after the bag is formed into a cylindrical body, it becomes a double effort, and the work such as manually threading the opening string 3 created separately is required. This requires a lot of troublesome work and is a cause of high costs.

The present invention is an attempt to solve the above-mentioned problems, and its feature is that a part of the warp threads when making the bag fabric is made of special warp threads that differ in yarn quality, denier, color, etc. By making it possible to use the special warp threads directly as a closure, the manufacturing cost of sandbags can be reduced and the sandbags can be used easily.

An example of implementing the present invention will be described below based on the drawings.

FIGS. 2A to 2G show manufacturing process diagrams.
Figure A shows the warp arrangement when making bag fabric, and 120 warp threads 5 are arranged within a width W of 65 cm. Among these, the warp yarns 5' at a certain distance 3 cm to 5 cm from the edge end on one side (left end A in the illustrated example) are made of different yarn quality and thickness, such as different types of fibers, thick denier, or colored yarn. A special warp and eggplant are used, and the weft threads 6 are inserted using a conventional loom to form a bag woven fabric 7 as shown in Figure B. At this time, the warp and weft are generally made of flat yarn (800~900
When using a thick denier, the warp yarns 5' have a denier of 3,000 to 5,000.

Figure C shows a unit piece 8 obtained by cutting the bag woven fabric 7 produced above into a length sufficient to make one bag.
and is cut at l=1m. Diagram D
1 shows a state in which the unit fabric 8 is folded in half at the 1/2l position to form a folded fabric 9. Figure E shows the warp 5' on the opposite side of the fold e of the folded fabric 9.
In this state, about 3 cm from the overlapping edge part f is pulled out from the weft thread 6 and protrudes inward. When the end edge of the warp threads 5' is pulled out in this way, as shown in Figure F, the part 1 cm from the overlapping end edge f is folded inward, and the middle part is sewn with a sewing machine toward the right end. Then, at the right end of the folded fabric 9, as shown in Figure G, fold inward at a point about 1 cm from the edge as a crease, and then machine sew the middle part again (11). .

FIG. 3 shows a sandbag 12 manufactured in this manner.

The sandbag according to the present invention is manufactured as described above, and the bag opening m of the sandbag 12 is provided with a hole for passing a string through, as in conventional products, and a separate opening string is provided. There is no need to do any work such as passing it through. That is, in the sandbag bag 12 of the present invention, when the bag mouth m is opened and a certain amount of soil is stored in the bag body, and the bag mouth is to be closed later, the warp threads 5' protruding from the upper side are used. All you have to do is hold the end edge g of the bag with your hands and pull it, which makes it easy to squeeze the bag opening and tie it.

At this time, the warp threads 5' are made of different fibers, are colored, or have a thick denier, so that they can be easily identified as the laces, which reduces the hassle of work. There is nothing. Therefore, the work can be done quickly. Furthermore, the present invention is easier to manufacture than conventional products, and the manufacturing cost can be reduced to about 1/3 to 1/2.

[Brief explanation of drawings]

FIG. 1 shows the conventional product, FIGS. 2A to 2G show the manufacturing state of the product of the present invention, and FIG. 3 shows the product of the present invention. 1... Bag body, 2... String hole, 3... Mouth string,
5... Warp, 5'... Special warp, 6... Weft, 7
...Bag woven fabric, 9...Folded fabric, 12...Sandbag bag, e...Fold.

Claims (1)

[Scope of utility model registration request] A part of the warp of the bag woven fabric is a flat yarn or a special diameter yarn with a thick denier, and the special warp is located approximately 3 cm to 5 cm from the upper side of the bag mouth, and the special warp ends approximately 3 cm from both ends of the special warp. A dojo bag characterized by having a structure in which the weft threads are pulled out from the weft threads and protrude outward, and the weft thread portions at the pulled out locations and the side positions opposite to the special warp threads are slightly bent inward and sewn by a sewing machine. .