JP4936728B2 - Civil engineering bag - Google Patents

Description

TECHNICAL FIELD The present invention relates to a civil engineering bag filled with filling materials such as earth and sand, chestnut stone, and concrete glass.
More specifically, it relates to sandbags used for root consolidation used to prevent scouring and erosion in rivers and harbors, as well as shock absorbing protective walls used to prevent falling rocks, avalanches and landslides. is there.

Conventionally, in order to prevent scouring and erosion in rivers, harbors, etc., civil engineering pouches filled with earth and sand have been used.
In many cases, the bag body has a purse-like shape by narrowing the opening and bottom with a rope or string.
Therefore, at the time of manufacture, the opening part and bottom part of a cylindrical cloth bag are folded back and sewn to form a passage for inserting a rope or string.
And at the time of manufacture or at the construction site, after a rope or string is inserted through this passage, a procedure is taken to narrow the opening and bottom by pulling it (for example, see Patent Document 1).
In addition, when the fabric bag has a clear mesh, it is attached to the opening by alternately squeezing the squeezed yarn through the mesh of the opening of the fabric bag at the time of manufacture. Narrow the opening.

Japanese Utility Model Publication No. 55-169174

However, in the civil engineering bag as described above, it is necessary to fold back the opening and bottom and sew and form a passage for inserting the rope and string, and to insert the rope into the passage. .
This method of forming a passage by sewing has the disadvantages that the number of man-hours is increased and labor is required, and the width of the passage tends to be non-uniform individually.
In addition, when the cloth bag has a clear mesh, it is necessary to insert the squeezing yarn alternately in the mesh at the opening and bottom of the cloth bag. It takes skill to work.

The present invention has been made to solve the above-described problems.
That is, an object of the present invention is to provide a civil engineering bag body that does not require as much effort as possible to provide a drawn thread at the opening or bottom of the cloth bag during manufacture.

  Thus, as a result of intensive research on the background of such problems, the present inventor manufactured a fabric bag by weaving, and at the same time of weaving, the mouth-drawn yarn and the bottom-drawn yarn were systematically formed and inserted. It has been found that the above-mentioned problems can be solved by inserting into the space portion, and the present invention has been completed based on this finding.

In other words, the present invention is (1) for civil engineering comprising a purse-like cloth bag having an opening, a body portion, and a bottom, and having a mouth-drawn yarn at the opening and a bottom-drawn yarn at the bottom. A squeezing thread and a bottom squeezing thread, which are inserted when weaving a cloth bag, and the opening and the body part form a front part forming a front part and a rear part structure forming a rear part. A lateral insertion space portion is formed in a part of each tissue portion of the opening, and the mouth-drawn yarn is inserted into the insertion space portion by weft insertion, and the bottom portion is formed from the integral tissue portion. Therefore, the present invention resides in a civil engineering bag body in which a lateral insertion space portion is formed in a part of the integrated tissue portion, and the bottom drawn yarn is inserted into the insertion space portion by weft insertion .

Further, the present invention is (2), integral structure part of the bottom consists in civil engineering bag body (1), characterized in that a tissue and the front structure part and rear structure of the body part are integrated.

The present invention also relates to (3), the colored weft showing the input of the medium filling material in the body portion is woven (1) consists in civil engineering bag body according.

The invention also relates to (4), both sides of the sack in the civil engineering for bag according to (1), which is a front tissue section and the rear surface tissue section are integrated tissue portion that is integrated over a constant width Exist.

Moreover, this invention exists in the civil engineering bag body of the said ( 4 ) description by which the hole for lifting is formed in the integral structure part of the both sides of the said cloth bag ( 5 ).

The invention also relates to (6), thread stop the mouth aperture yarns and bottom lies in civil engineering bag body (1), wherein the thick yarn reinforced from the yarn constituting the other tissue portion.

  In addition, as long as the objective of this invention is met, the structure which combined the said invention suitably is also employable.

According to the civil engineering bag of the present invention, the mouth squeezing yarn and the bottom squeezing yarn are inserted during weaving of the cloth bag, and the insertion space for inserting the rope during weaving is systematically formed. Thus, it is not necessary to make the insertion space portion of the mouthpiece rope in a separate process, and the operation of inserting the mouthpiece rope into the insertion space portion is unnecessary.
Therefore, the manufacturing man-hour is reduced as a whole, and the quality of the civil engineering bag itself is improved.

The best mode for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 shows the civil engineering bag body before the filling material W is introduced, and FIG. 2 shows the civil engineering bag body after the filling material W is introduced.
Further, FIG. 3 is a longitudinal sectional view for explaining the structure of the civil engineering bag.
The civil engineering bag body of this embodiment is formed of a drawstring-like rectangular cloth bag A woven using a loom, and the cloth bag A has an opening 1, a body part 2, and a bottom part 3.
The civil engineering bag has a three-dimensional shape in a state where a predetermined amount of the filling material W is charged into the body portion 2 (that is, a state in which the filling material W is filled).
The opening portion 1 and the body portion 2 are composed of a front surface portion and a rear surface portion, and when these portions are expanded, an input space S for the filling material W is formed.
Exist.

  As the filling material W, mainly earth and sand, chestnut stone, concrete glass or the like is adopted, but other various materials can be used depending on the intended use.

  Moreover, as a material of the cloth bag A, what is necessary is just to have the intensity | strength which can insert the filling material W, Natural fibers, such as synthetic fibers, such as polyester, polyamide, polyethylene, or polypropylene, and cotton, hemp, are employ | adopted. .

In the civil engineering bag body, the front surface portion of the opening 1 and the body portion 2 is formed by the front tissue portion 1A, and the rear surface portion is formed by the rear tissue portion 1B, and these tissue portions 1A and 1B are integrally formed at the bottom portion 3. To form an integrated tissue portion 3AB.
Here, each of these tissue portions 1A and 1B is woven by a loom, and is woven as a plain weave structure at the time of weaving, forming a so-called woven structure.
The woven density of the monolithic tissue part 3AB in the bottom part 3 is twice the woven density of the front tissue part 1A and the rear tissue part 1B in the opening 1 and the body part 2.
Furthermore, the yarn density of the warp and weft during weaving (weft preparation is possible at any part) has a yarn density twice that of the front tissue portion 1A and the rear tissue portion 1B in the monolithic tissue portion 3AB. It is.
The density of each structure can be adjusted by the number of wefts to be inserted.

(Aperture)
By the way, the civil engineering bag of the present invention is provided with a mouth-drawn yarn R1 at the opening 1 and a bottom-drawn yarn R2 at the bottom 3, which function for narrowing.

Specifically, when a lateral insertion space S1 is formed in a part of the front tissue portion 1A and the rear tissue portion 1B during weaving in the opening 1, the squeezed yarn R1 is inserted into the insertion space S1. ing.
In this case, when weaving the opening 1 with a loom, the front tissue part 1A is separated into two front thin tissue parts 1A1 and 1A1 for forming the insertion space part S1, and the rear tissue part 1B is also inserted. The two rear thin tissue portions 1B1 and 1B1 for creating the space S1 are separated and organized.
The front tissue portion 1A is twice the woven density of the front thin tissue portion 1A1, and the rear surface tissue portion 1B is also twice the woven density of the rear thin tissue portion 1B1.

In the case of warp and weft during weaving, the yarn density of the front tissue portion 1A and the rear tissue portion 1B is twice that of the front thin tissue portion 1A1 and the rear thin tissue portion 1B1, respectively.
The squeezed yarn R1 is inserted in the insertion space S1 formed by the two front thin tissue portions 1A1 by one-way in the lateral direction, and the insertion space portion S1 formed by the two rear thin tissue portions 1B1. Are inserted in one direction in the horizontal direction, and there are a total of two.
These squeezed yarns R1 can be inserted in one way by weft insertion using, for example, a rapier gripper during weaving.

Since the insertion space S1 does not sew with a sewing allowance unlike the conventional case, the portion of the sewing allowance does not appear inside, and as a result, a straight and uniform space formed by the woven structure is formed. In addition, the hardness due to the seam allowance is less than in the prior art.
The squeezed yarn R1 is arranged in a state having a degree of freedom in the insertion space S1 that is wider than the yarn.
For this reason, when narrowing the opening 1 with the squeezed yarn R1, uniform narrowing can be performed, and the operation becomes extremely easy.

(bottom)
On the other hand, the bottom portion 3 is a monolithic tissue portion 3AB, and a lateral insertion space S2 is also formed in a part of the monolithic tissue portion 3AB.
In this case, the monolithic tissue portion 3AB is separated into the front tissue portion 3A and the rear tissue portion 3B to form the insertion space portion S2, and these are the front tissue portion 1A and the rear tissue portion in the opening 1 and the trunk portion 2. It is an organization corresponding to 1B.
Also in this case, the insertion space portion S2 is not sewed by making a seam allowance unlike the conventional case, and the bottom drawn thread R2 is also arranged in a state having a degree of freedom in the insertion space portion S2 that is wider than the thread. Has been.
For this reason, the so-called hardness of the bottom portion is reduced, it is very easy to narrow down by the bottom drawn yarn R2, and it is easier to operate when narrowing the bottom portion 3.

Incidentally, in the case where the insertion space portion S2 is formed by sewing as in the conventional case, when the bottom portion is narrowed down, the hardness is obstructed and smooth drawing cannot be performed.
At the time of weaving, an insertion space portion S2 is formed by the front tissue portion 3A and the rear tissue portion 3B, and at the same time, the bottom drawn yarn R2 is inserted into the insertion space portion S2 by weft insertion as in the mouth drawn yarn R1 described above. It will be.

(Bilateral organization)
Both sides of the cloth bag A are integrated tissue portions Z in which the front tissue portions 1A, 2A, 3A and the rear tissue portions 1B, 2B, 3B are integrated over a certain width. It is a woven structure similar to the part 3AB.
Therefore, the charging space (filling space) S for charging the filling material W is a space in which three sides are closed by the integral tissue portion Z formed on both sides and the integral tissue portion 3AB formed on the bottom portion 3. Become.
Holes H are formed in the monolithic tissue portion Z on the one side at regular intervals in the vertical direction, and the holes H are used as lifting holes.
That is, when constructing at the site, the civil engineering bag body filled with the filling material W is extremely heavy (for example, it is often 1 ton or more) and the hook F is inserted into the hole H using a crane or the like. Insert, lift and move.

By the way, when filling the filling material W as described above, it is necessary to make the amount of the filling accurate, and for this reason, as shown in FIG. 1, the filling material W is put into the body portion 2 of the cloth bag A. It is preferable to provide a line-shaped mark that is a measure of the amount.
This mark can be easily provided by weaving, for example, a weft L that is conspicuously colored such as a fluorescent color or a clear color as a weft during weaving.
Since the amount of filling of the filling material W is accurate and stable, it is possible to avoid exceeding the set weight, improve the quality of the bag itself, and perform construction accurately according to the construction design.

(Working process)
Next, an operation procedure for putting the filling material W (shown as pebbles as an example for convenience) into the civil engineering bag will be described.
FIG. 4 is an explanatory view showing a work procedure until the filling material W is put into the civil engineering bag body and put into use.
First, from the civil engineering bag body before the filling material W as shown in FIG. 1 is put in, the bottom portion 3 is drawn using the bottom drawn yarn R2 [see FIG. 4 (A)].
In this case, the bottom squeezing thread R2 is inserted in the insertion space part S2 formed in the integral tissue part 3AB in the lateral direction, so that the bottom squeezing thread R2 is squeezed so that the bottom part 3 is turned around while holding both ends. After that, it is preferable to wind the bottom drawn yarn R2 several times.

After the bottom portion 3 is narrowed down, the filling material W is then filled (see FIG. 4B).
In this case, for example, a civil engineering bag body is set in a filling mold (not shown) so that the opening edge of the opening portion 1 is opened, and in this state, the body portion 2 is filled with the filling material W. The method to do (input) is adopted.
As a formwork of a civil engineering bag body, for example, there is JP-A-2005-240348 related to the application of the present applicant.

After the filling material W is introduced, the opening 1 is narrowed by the mouth-drawn yarn R1 in order to close the opening 1 (see FIG. 4C).
In this case as well, two squeezed yarns R1 are inserted between the insertion space portion S1 between the front thin tissue portion 1A1 and one insertion space portion S1 between the rear thin tissue portion 1B1 and a total of two. Therefore, each of the two squeezed yarns is crossed and tied at one end or both ends, then the opening 1 is squeezed, and finally the squeezed in the reduced state. It is preferable to wind the yarn R1 several times.
As described above, the civil engineering bag body filled with the filling material W is completed.
The civil engineering bag filled with the filling material W usually has a load that cannot be handled manually, and is lifted and moved by a crane or the like (see FIG. 4D).

  Although the present invention has been described above, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the essence thereof.

For example, as shown in FIGS. 5 and 6, a plurality of squeezed yarns R1 inserted into the opening 1 or the bottom 3 may be inserted into one insertion space.
5 and 6 show a case where three squeezed yarns R1, R1, R1 are inserted into the insertion space S1 in the opening 1.
The insertion space portion S1 has two insertion space portions, that is, a front surface tissue portion 1A on the front surface portion and a rear surface texture portion 1B on the rear surface portion, so that there are a total of six squeezed yarns R1 in the opening portion 1. FIG. 5 shows only the squeezed yarns R1, R1, and R1 on the front surface.

7 and 8 form two insertion space portions S1 vertically arranged on the front tissue portion 1A, and similarly form two insertion space portions S1 vertically arranged on the rear tissue portion 1B. An example is shown in which one squeezed yarn R1 is inserted into the space S1.
In this case, there are four squeezed yarns R1, R1, R1, R1 in the opening 1 in total, but FIG. 7 shows only the squeezed yarns R1, R1 in the front portion.
In this case, two squeezed yarns R2 and R2 are inserted into the insertion space S1 in the bottom 3.

In the civil engineering bag of the present invention, the number of insertion space portions S1 and the number of drawn yarns inserted into the insertion space portion S1 can be freely set as described above.
Further, the mouth drawn yarn R1 and the bottom drawn yarn R2 constitute the front tissue portions 1A to 3A, the front thin tissue portion 1A1, the rear thin tissue portions 1B to 3B, the rear thin tissue portion 1B1, the integral tissue portion 3AB, etc. of the civil engineering bag. A thread having a different form from the thread to be used can also be used.
For example, a thick yarn reinforced than the yarn constituting the other tissue part is used, or a material different from the yarn constituting the other tissue part is adopted.

It is also possible to make the woven structures of the rear surface portion and the front surface portion different from each other.
Further, it is possible to appropriately change the provision of a handle on the cloth bag A of the civil engineering bag body to facilitate carrying.
Further, in the civil engineering bag of the present invention, it is naturally possible to use the bottom squeezed yarn R2 without using the bottom drawn yarn R2 at all, but only in the state of being closed by the monolithic tissue portion 3AB.

FIG. 1 is an explanatory view showing a civil engineering bag body before the filling material is introduced. FIG. 1 is an explanatory view showing the civil engineering bag after the filling material is introduced. FIG. 3 is a cross-sectional view in the length direction for explaining the structure of the civil engineering bag body of FIG. 1. FIG. 4 is an explanatory diagram showing a work procedure until the filling material is put into the civil engineering bag body and put into use. FIG. 5 is an explanatory view showing a modification of the civil engineering bag of FIG. 6 is a longitudinal sectional view for explaining the structure of the civil engineering bag of FIG. FIG. 7 is an explanatory view showing a modification of the civil engineering bag of FIG. FIG. 8 is a longitudinal sectional view for explaining the structure of the civil engineering bag of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Opening part 1A Front tissue part 1B Rear surface tissue part 1A1 Front thin tissue part 1B1 Rear thin tissue part 2 Torso part 2A Front tissue part 2B Rear surface tissue part 3 Bottom part 3A Front tissue part 3B Rear surface tissue part 3AB Integrated tissue part A Bag)
F Hook H Hole L Colored weft R1 Mouth draw thread R2 Bottom draw thread S Input space S1 Insert space portion S2 Insert space portion W Filling material Z Monolithic structure portion

Claims (6)

A civil engineering bag body comprising a drawstring-shaped cloth bag having an opening, a body part, and a bottom part, wherein a mouth-drawn yarn is provided at the opening part and a bottom-drawn thread is provided at the bottom part,
The mouth-drawn yarn and the bottom-drawn yarn are inserted when weaving the cloth bag,
The opening part and the body part are composed of a front tissue part forming a front part and a rear tissue part forming a rear part, and a lateral insertion space part is formed in a part of each tissue part of the opening part, The squeezing thread is inserted into the insertion space by weft insertion,
The civil engineering characterized in that the bottom portion comprises a monolithic tissue portion, a lateral insertion space portion is formed in a part of the monolithic tissue portion, and the bottom drawn yarn is inserted into the insertion space portion by weft insertion. Bag body. Civil bag body is integrally tissue section according to Claim 1, characterized in that a tissue and the front structure part and rear structure of the body part are integrated in the bottom. Civil bag body according to claim 1, wherein the colored weft showing the input of the medium filling material in the body portion is woven. Civil bag body according to claim 1, wherein both sides of the sack is characterized in that together the tissue portions and rear tissue portion is integrated with the front structure portion over a constant width. The civil engineering bag according to claim 4, wherein a hole for lifting is formed in the integral tissue portion on both sides of the cloth bag. Yarn squeezing the mouth aperture yarns and bottom, for civil engineering bag according to claim 1, characterized in that a thick yarn reinforced from the yarn constituting the other tissue portion.

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