JP2619276B2 - Sandbag molding method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for forming a sandbag for supporting earth pressure such as embankment.

<Conventional Technology> To support the earth pressure of an embankment, a face, or the like, a sandbag filled with a filler such as sand in a bag body is used.

<Problems to be Solved by the Present Invention> In a conventional sandbag, a bag is filled with a filler such as sand manually.

Therefore, it took a lot of time and labor to form the sandbag.

<Object of the present invention> The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a method for forming a sandbag capable of easily and quickly forming a sandbag.

<Configuration of the Present Invention> Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

<A> Formation of Bag (FIG. 2) The bag 1 is formed of a flexible sheet having at least air permeability, for example, cloth.

The shape and size of the bag 1 are selected according to the use of the sandbag, but the present embodiment is for forming a long pillow-shaped sandbag.

This bag is closed, and a room for filling with a filler such as sand is formed inside.

The bag 1 is provided with one or more inlets 11 for a filler such as sand.

The inlet 11 has a pocket shape, and the hose 2 for injecting sand or the like can be inserted therein.

Then, when the hose 2 is pulled out after being filled with sand or the like, the inlet 11 is naturally closed.

<B> Formation of Frame (FIG. 1) The frame 3 is a hollow frame formed in a desired shape.

The frame 3 is formed in a mesh shape using a wire or the like having some flexibility so as not to lose its shape.

 Then, the bag 1 is stored in the frame 3.

<C> Feeding of Filler (FIG. 2) Sand 4 or the like is used as the filler to be filled in the bag body 1.

For example, as shown in FIG. 2, a device for feeding a filling material in which a compressor 22 is connected to a feeding device 21 having a filling hose 2 can be considered.

First, the tip of the hose 2 is inserted into the inlet 11 of the bag 1.

Next, the pumping machine 21 and the compressor 22 are operated, and the sand 4 is charged into the pumping machine 21 by a belt conveyor or the like, and is pumped into the hose 2.

Then, the sand 4 is vigorously squirted into the bag 1 from the end of the hose 2, and the sand 4 can be immediately filled in the bag 1 by the pumping force of the machine.

At this time, since the bag 1 has air permeability, air escapes from the bag 1 to the outside, and only the sand 4 is injected into the bag 1.

The bag 1 is gradually expanded by the injection of the sand 4, but the frame 3 located around the bag 1 restrains the expansion of the bag 1.

Therefore, the bag 1 is formed into a shape substantially equal to the hollow space of the frame 3.

After the filling of the sand 4 is completed, the compressor 21 and the compressor 22 are stopped, and the hose 2 is pulled out from the bag 1.

At this time, since the injection port 11 is configured to close naturally when the hose 2 is pulled out, the work of closing the injection port 11 can be omitted.

As another method of pumping the filler, a method of pushing the filler into the bag 1 using a piston or the like is conceivable.

 Thus, the formation of the sandbag is completed.

<Operation of the present invention> According to the present invention, a sandbag having an arbitrary shape that matches the shape of the hollow space of the frame 3 can be formed.

Therefore, it is possible to freely shape the shape of the rectangle and other sandbags.

Therefore, for example, when a sandbag having a square section is formed as shown in FIG. 1, the sandbags can be easily stacked.

In addition, since it can be formed into a shape suitable for the ground shape on which the sandbag is placed, the applicable range is widened.

Further, the frame 3 is formed of a wire or the like having some flexibility so as not to lose its shape.

Therefore, when the sandbags are stacked, the frame 3 is slightly bent, so that it is possible to prevent a gap from being formed between the sandbags.

<Other Examples> As another example, the inside of the bag 1 may be divided into a plurality of rooms.

In this case, the inside of the bag 1 may be partitioned by a sheet having the same air permeability as the sheet forming the bag 1.

For example, as shown in FIG. 3, according to a method in which a longitudinal end of the sheet is folded inward and the end is fixed by a clasp 12, the sheet can be easily divided.

By dividing the inside of the bag 1 in this manner, the installation stability can be improved.

<Effects of the Present Invention> Since the present invention has been described above, the following effects can be expected.

<A> In the conventional sandbag, since a bag body is filled with a filler such as sand manually, a great deal of time and labor is required for forming the sandbag.

On the other hand, in the present invention, a filling material such as sand is efficiently filled into a bag having air permeability by a pumping force of a machine.

Therefore, the sandbag can be formed very quickly and easily as compared with the case of the conventional manual operation.

<B> According to the present invention, a filler such as sand can be efficiently filled by the pumping force of the machine, so that a large-capacity sandbag can be formed in a short time.

<C> According to the present invention, sandbags of any shape can be formed according to the shape of the hollow space of the frame.

Therefore, it is possible to freely shape the shape of the rectangle and other sandbags.

Therefore, for example, when a sandbag having a square cross section is formed, the sandbags can be easily stacked.

<D> The sandbag can be formed into a shape suitable for the ground shape on which the sandbag is placed.

 Therefore, the applicable range is widened.

<E> The frame is formed of a wire or the like having some flexibility so as not to lose its shape.

Therefore, when the sandbags are stacked, the frame slightly bends, so that it is possible to prevent a gap from being formed between the sandbags.

<F> When the inside of the sandbag is divided into a plurality of rooms, the installation stability of the sandbag can be improved.

<G> The filler inlet provided in the sandbag of the present invention is configured to close naturally when the filler hose is pulled out.

 Therefore, the work of closing the injection port can be omitted.

[Brief description of the drawings]

 FIG. 1: Illustration of an embodiment of the present invention FIG. 2: Illustration of a method of forming a bag body FIG. 3: Illustration of another embodiment

Claims (2)

(57) [Claims] 1. A method for forming a sandbag for supporting earth pressure such as embankment, wherein a closed bag is formed by a flexible sheet having at least air permeability, and an inlet for filling material of the bag is filled. On the other hand, forming a hollow frame member with a net-like body, storing the above-mentioned bag body in this frame member, and feeding and filling a filler from an injection port of the bag body, forming a sandbag Method. 2. A method for forming a sandbag according to claim 1, wherein the inside of the bag body accommodated in the frame member is divided into a plurality of rooms.