KR101459113B1 - container bag - Google Patents

Abstract

Provided is a container bag, comprising: a body part which maintains a stable standing shape at the time of charging contents so as to receive the maximum loadage in the container bag of a same standard, and, in order to improve the stability in the case of multi-layered stacking for loading, has a plurality of side wall parts forming an internal space so as to receive powdery materials, connected to each other at both side end portions of each and having a lower portion of which width is formed to be larger than that of an upper portion so as to be provided with a folded portion at both side end portion, a cover part having an insertion tubular part in the center and connected to the upper end portions of the side wall parts and a bottom part connected to the lower end portions of the side wall parts; and a plurality of drawing belts which include ring parts protruding to the upper side of the cover part, coupling parts respectively connected to the both end portions of the ring parts and respectively coupled along the center portion of one of the side wall parts and the center portion of another adjacent one of the side wall parts, and lower support parts connected to the lower ends of the respective coupling parts and coupled to the bottom part.

Description

Container bag

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container bag, and more particularly, to a container bag that maintains a stable upright shape when filling contents, accommodates the maximum amount of the container bag of the same size, and improves stability in multi-

Generally, a container bag is also called a FIBC (flexible intermediate bulk container), a big bag, a bulk bag, and a container bag for storing and transporting fractions such as grain or synthetic resin materials As an industrial bag, a flexible material is used to facilitate the storage and withdrawal of the minute batch.

At this time, the container bag contains contents of about 500 to 2000 kg of chemical, mineral, grain, synthetic resin powder material, cement, and the like, and is stored in a crane, a hoist, Transported and stored in a warehouse or carried on a truck.

In recent years, as international trade has become more active, it has become more stable and more space-efficient when transporting through trucks or container vehicles or loading warehouses in order to efficiently transport and store as the volume of cargo increases, and to reduce transportation costs and storage costs due to intensified competition. The demand for container bags that can be maximized is increasing.

1 and 2 are perspective views showing a conventional container bag 100, 200.

As shown in FIGS. 1 and 2, the conventional container bags 100 and 200 include side wall portions 110 and 210 forming an internal space for storing contents, and lid portions 120 and 220 for selectively opening and closing the upper portions of the side wall portions 110 and 210 And bottom portions 130 and 230 for selectively opening and closing the lower portions of the side wall portions 110 and 210. In addition, ring portions 140 and 240 formed of a carrier rope or a belt are provided on the upper side of the side wall portions 110 and 210.

Here, the side wall portions 110 and 210 are sealed so as to form a columnar or square column when the contents are housed. At this time, the container bag 100 in which the side wall part 110 is sealed in the cylindrical shape can accommodate a lot of contents. However, when the container bag 100 or the container bag 100 is stored in a container box or a warehouse, There is a problem that it is difficult to use the space effectively because the space is formed and the porosity is increased.

Further, in the case of the container bag 200 in which the side wall part 210 is sealed in the form of a quadrangular prism, since the clearance between the container bags is reduced due to being loaded on a truck or stored in a warehouse, A larger number of container bags than the bag 100 can be loaded. However, when a predetermined amount of the contents is stored, the center portion 211 of the side wall portion 210 protrudes outward due to the load of the contents itself. So that the load space is further occupied.

When the container bags 200 are stacked and stacked in multiple stages, the load of the container bag 200 is dispersed in the protruding portions 211 of the side wall portions 210, So that it can not be stably stacked. Therefore, when the container bag 200 falls down, there is a serious problem that the operator is seriously injured or the contents stored therein are poured and damaged or lost.

Also, in order to solve the problem that the multiple spaces can not be stacked due to the folding phenomenon and the limited space can not be efficiently used, a method of forming the reinforcing portion in the vertical direction or the transverse direction of the side wall portion 210 is proposed. There is a phenomenon that the load is concentrated on the adjoining portion and tearing occurs, so that the durability of the product is remarkably reduced and the manufacturing cost is increased due to the formation of the reinforcing portion.

Meanwhile, there has been proposed a method of sewing a partition for connecting the inner side surfaces of the side wall part 210 to reduce the incandescence of the side wall part. However, since the foreign substances generated during the partition manufacturing process are mixed with the contents, There is a problem that the protecting inner film can not be used, and in the multi-layer stacking, the connecting part of the partition is easily damaged and the lamination stability is reduced.

Korean Patent Publication No. 10-2004-0027809

In order to solve the above problems, there is a need to provide a container bag having a stable upright shape when filling contents and accommodating the maximum amount of loading in a container bag of the same standard, and having improved stability in multi-layer stacking for stacking .

According to an aspect of the present invention, there is provided a sidewall structure including a plurality of sidewalls, each sidewall being connected to each other, And a bottom portion connected to a lower end portion of the side wall portion, wherein the body portion is formed with an insertion tube portion at a center portion thereof and connected to an upper end portion of the side wall portion; And a coupling part connected to both ends of the ring part and respectively coupled along a center part of one sidewall part and a center part of another adjacent sidewall part, And a plurality of lifting belts including a lower support portion coupled to the support portion.

The bottom edge portion of the bottom wall portion of the bottom wall is curved upwardly and the bottom edge portion of the bottom wall portion of the bottom wall portion is connected to the center portion of each edge of the bottom wall. And the other edge of the other side of the belt is arranged to be supported in a diagonal direction by being connected to the edge of the other edge of the belt.

The engaging portion is disposed to be symmetrical with the engaging portion of the other lifting belt relative to the center of each of the side wall portions, and is coupled to the inner surface of the side wall portion. The lower holding portion is disposed to surround the back surface of the bottom portion, The connecting portion of the hook is superimposed on the upper end of the side wall and the lid portion, and the connecting portion of the connecting portion and the lower supporting portion is superposed between the lower end of the side wall and the bottom.

The lid portion and the bottom portion of the bottom portion have an allowance to be longer than a width of the end portion of the side wall portion. The lid portion and each bottom portion of the bottom portion are folded in a cone shape so as to be folded and connected to the side wall portion. desirable.

Further, the coupling distance between each of the engaging portions and each of the side wall portions may be shorter than the height of the side wall portion, and the coupling distance may be 85% to 99% of the height of the side wall portion.

Through the above-described solution, the container bag according to the present invention provides the following effects.

First, the center of each rim of the bottom portion is curved inwardly to be connected to the side wall portion, and the bottom support portion of the lifting belt is pulled inward diagonally toward the center of the adjacent rim of the bottom portion, Since the concave curved portion is formed and four imaginary columns are formed in the direction of the corners from the center of the body portion, the load of the bag is dispersed to the bottom surface of the four pillars so that the flow of the upper portion can be stably accommodated, have.

Second, since the lifting belt distributes and supports the load of the contents stored in the body through the coupling portion coupled to the side wall portion and the lower support portion coupled to the bottom portion, and simultaneously transmits the lifting force to the upper and lower portions of the body portion, The shaking is minimized and safety in transportation is improved and the tearing of the connecting portion between the lifting belt and the body part due to the swinging of the body part is prevented, and the durability of the product can be improved.

Third, since the lifting belt passes between the lid part and the side wall part, the side wall part, and the bottom part, the lifting belt is overlapped at the time of one-time sewing, so that it is possible to more firmly and efficiently combine parts, and productivity of the product can be improved.

Fourthly, the body portion can be held in a quadrangular prism shape without a separate partition member through the lifting belt and the central portion of the curved rim of the bottom portion, so that an inner liner can be inserted that can protect the contents housed inside the body portion from foreign matter, moisture, And the storage efficiency of the product can be improved.

1 and 2 are perspective views showing a conventional container bag.
3 is a perspective view of a container bag according to an embodiment of the present invention;
FIG. 4 is an exemplary view showing a bottom portion of a container bag according to an embodiment of the present invention in a state where contents are charged. FIG.
5 is an exploded view of a container bag according to an embodiment of the present invention.
FIG. 6 is a perspective view illustrating a lid of a container bag according to an embodiment of the present invention. FIG.
7 is a perspective view showing a bottom portion of a container bag according to an embodiment of the present invention.
FIGS. 8A, 8B, and 8C are cross-sectional views illustrating how contents are charged in a container bag according to an embodiment of the present invention; FIGS.

Hereinafter, a container bag according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a perspective view showing a container bag according to an embodiment of the present invention, FIG. 4 is a view illustrating a bottom portion of a container bag according to an embodiment of the present invention, FIG. 6 is a perspective view of a lid of a container bag according to an embodiment of the present invention, and FIG. 7 is a perspective view illustrating a bottom of a container bag according to an embodiment of the present invention. 8A, 8B and 8C are cross-sectional views illustrating a state in which contents are charged in a container bag according to an embodiment of the present invention.

3 to 8B, the container bag 300 according to an embodiment of the present invention includes a body portion 10 and a lifting belt 20.

Here, the container bag 300 is made of a flexible material so as to minimize the volume of the contents in the state of not storing the contents such as powder, etc., and to store a large amount of contents in a predetermined space when the contents are stored. Is easily formed.

At this time, the container bag 300 is formed so as to maintain the outer shape of the container bag 300 and to maintain the strength by weaving the container bag 300 with natural fiber material, polyvinyl chloride (PVC), or synthetic resin material. Therefore, an inner liner (not shown) made of a synthetic resin having waterproof property or the like may be provided inside and used together.

3 to 5, the body portion 10 includes side wall portions 11 and 12, a lid portion 13, and a bottom portion 14. Here, the side wall portions 11 and 12 are provided in plural to form an internal space in which the minute flow streams are received, and the respective opposite side end portions 11b are mutually connected.

For example, in the case where the body portion 10 is formed in a square pillar shape, the side wall portions 11 and 12 may be provided in four pieces, and the other end portion of the one side wall portion may be provided at one end of the other side wall portion So that the upper and lower surfaces of the rectangular column can be opened.

Of course, the side wall portion may be formed as a single film, and the inside space may be formed by folding the inside at regular intervals to form a polygonal columnar shape and connecting one end portion and the other end portion.

Each of the side wall portions 11 and 12 has a lower width c that is wider than an upper width b so that a bent portion 11d is formed at both side ends 11b. Accordingly, the lower cross-sectional area of the inner space of the body 10 can be formed wider than the upper cross-sectional area.

That is, when both side ends 11b of the four side wall portions 11 are coupled to each other, a square pillar with an opened upper surface and a lower surface can be formed, and the rectangular pillar has a narrow upper portion and a wider lower portion do.

At this time, the bent portions 11d are formed at both side end portions 11b of the side wall portion 11, and may be formed to be inclined so as to connect the narrowly formed upper side wall portion and the widely formed lower side wall portion.

Although a portion where the upper end of the bent portion 11d is connected to the side edge of the upper side wall portion and a portion where the lower edge of the bent portion 11d is connected to the side edge of the lower side wall portion are shown as being bent, Each connecting portion can be made in a smooth curved shape.

Since the inner space of the body portion 10 has a wide lower portion and a narrow upper portion, the load of the contents can be stably supported by the lower side when the contents are filled, so that the body portion 10 can have improved uprightness.

Accordingly, it is possible to stack two or more layers by providing a stable supporting force in multi-layer stack storage by mounting the container bag 300 on a pallet having a predetermined horizontal and vertical dimensions in an automated warehouse or the like, It is possible to provide an effect of reducing the distribution cost.

Further, a total load of the contents housed in the body portion 10 is loaded on the wide lower side from the narrow upper side along the both side end portions 11b of the side wall portions 11 and 12, and is dispersed and supported on each corner side of the bottom portion So that even if the height of the body 10 is higher than the conventional height, the container bag filled with the contents can be maintained in an upright form without collapsing.

Accordingly, instead of the conventional 750 kg container bag, the upright form can be maintained even in a 1000 kg container bag whose height is increased by 33.3% or a 1500 kg container bag whose height is increased by 100%, thereby increasing the storage efficiency at the time of loading, The loading capacity can be increased and the number of transports reduced, which can significantly improve loading and hauling efficiency.

In addition, an inner liner (not shown) may be further provided on the inner side of the body 10 to separate and protect the stored contents from the inner surface of the side wall 11. In other words, since the body portion can be held in a square pillar shape without a separate partition member through the lifting belt and the central portion of the curved rim of the bottom portion, the inner liner can be inserted and used inside the body portion 10.

Accordingly, it is possible to prevent the contents from being lost to the joint portion between the side wall portions 11 and 12 in the case of fine particles such as minute residues, and also to prevent the foreign matter from flowing into the gap between the joint portions, The storage efficiency can be further improved.

The lid part 13 is formed at its center with an insertion tube part 13a into which the contents such as minute fractions are inserted and is connected to the upper end of the side wall part 11. [ The upper end of each of the side wall portions 11 and 12 is connected to the lid portion 13 along the outer rim portion to form the upper surface of the inner space.

Of course, the lid part 13 may have a polygonal cross section or a circular cross section depending on the shape of the body part 10, and when the body part 10 has a square pillar shape, .

At this time, the insertion tube portion 13a may be formed as a circular column which is joined to the rim of the circular opening formed at the center of the lid portion 13.

Of course, the shape of the insertion tube portion 13a is not limited to the circular column but may be formed in various shapes, and may be separately formed and joined to the opening rim of the lid portion 13, Or may be integrally formed so as to extend.

In detail, the insertion tube portion 13a is a passage through which the contents are introduced into the internal space of the body portion 10. That is, the insertion tube portion 13a may be closely contacted to the lower end of the feeding means (not shown) such as a funnel for injecting the contents to insert the contents into the internal space. At this time, a fixing strap (not shown) may be provided on one side of the outer surface of the insertion tube portion 13a, and the fixing space may be sealed after the contents are filled.

4 to 5, the bottom portion 14 is connected to a lower end portion of the side wall portions 11 and 12. That is, the bottom portion 14 is connected to the lower end portions of the side wall portions 11 and 12 along the outer edge portion to form a lower surface of the inner space.

The bottom portion 14 may have a polygonal cross section or a circular cross section depending on the shape of the body portion 10. In the case where the body portion 10 has a square pillar shape, .

In detail, the contents injected into the inner space through the insertion tube portion 13a can be discharged through the insertion tube portion 13a in a state where the body portion 10 is turned upside down. In the middle portion of the bottom portion 14, And the contents can be discharged by connecting the discharge pipe portion to the opening.

That is, when the contents are injected into the body part 10, the discharge tube part is sealed. When the contents are injected, the body part 10 is lifted upward, Can be discharged to the outside.

3 to 4, the lifting belt 20 includes an annular portion 21, engaging portions 22 and 24, and a lower retaining portion 23. Here, the ring 21, the engaging portions 22 and 24, and the lower holding portion 23 are divided into respective portions of the lifting belt 20 according to functions, and the ring portion 21, And the lower holding portion 23 may be integrally formed.

That is, the lifting belt 20 may be formed of a synthetic resin band and may be formed of polypropylene (PP). At this time, the lifting belt 20 may be formed in a ring shape by folding the center side and forming a ring on one side and connecting both ends.

Here, the annular portion (21) protrudes upward from the lid portion (13). That is, the annular portion 21 may be a portion protruding from the upper edge of the side wall portions 11 and 12 to the upper side of the lid portion 13 in the lifting belt 20.

For example, the annular portion 21 may be formed by arranging the ring side on the upper side of the lid portion 13 in a state where the center side of the lifting belt 20 is folded to form a ring.

The lifting belt 20 can be fixed by engaging a lower portion of the ring side with the side wall portions 11 and 12. Both end portions of the lifting belt 20 are disposed toward the bottom portion 14, And may be coupled to the bottom portion 14 to form a lower support portion 23. [

One end of the ring 21 is connected to the upper edge of one side wall 11 and the other end is connected to the upper edge of the other side wall 12 adjacent to the side wall 11 to which the one end is connected. Here, the term " one end " and " other end " of the annular portion 21 are understood to mean a portion to which the annular portion 21 and the engagement portions 22 and 24 are connected.

For example, when the body portion 10 is formed in a square pillar shape, the side wall portions 11 and 12 are formed in four pieces to form a front surface, a right side surface, a rear surface, and a left side surface of the body portion 10 can do. At this time, the lifting belt 20 is provided in four, and four rings 21 can be formed.

That is, one end of one ring part 21 and the other end of another ring part may be disposed at the upper end of one side wall part 11, and one end and the other end of the two rings may be in close contact with each other at the center of the upper end part of the side wall part 11 . At this time, each of the rings 21 may be arranged in a diamond shape on the inner side of the lid part 13. [

A lifting device may be inserted between the lower surface of each of the ring portions 21 and the upper surface of the lid portion 13 and the lifting device may be hooked on the ring portion 21 to lift the body portion 10. [ .

The engaging portions 22 and 24 are connected to both ends of the ring portion 21 and are respectively coupled along the center portion of one side wall portion 11 and the center portion of another adjacent side wall portion 12.

Here, the engaging portions 22 and 24 are connected to the lower portion of the ring portion 21 of the lifting belt 20, and two lifting and lowering portions are provided on both ends of the lifting belt 21, The portions 22 and 24 are connected.

The first engaging portion 22 connected to one end of the annular portion 21 is vertically disposed along the central portion of one side wall portion 11 and is coupled to the second end portion of the second annular portion 21 connected to the other end of the annular portion 21, The engaging portion 24 may be coupled to the side wall portion 11 to which the first engaging portion 22 is coupled and vertically along the center portion of the adjacent side wall portion 12.

That is, the first engaging portion 22 of the one lifting belt 20 and the second engaging portion of the other lifting belt may be coupled to the center of one side wall portion 11. [ At this time, the first engaging portion 22 of the one lifting belt and the second engaging portion of the other lifting belt are disposed so as to be in close contact with each other with respect to the center line 11e of the side wall portion 11.

Of course, the respective engaging portions of the two lifting belts disposed along the center line 11e of the side wall portion 11 may overlap each other to be coupled to the side wall portion 11, and between the side wall portion 11 and the lifting belt The outer circumferential line of each lifting belt may be aligned along the center line 11e and may be coupled to the side wall portion 11 so as to maximize the coupling area of the lifting belt.

At this time, it is preferable that the first engaging portions 22 of the one lifting belt and the second engaging portions of the other lifting belt are disposed symmetrically with respect to each other.

Here, the coupling distance between each of the engaging portions 22 and each of the side wall portions 11 is shorter than the height of the side wall portion, and the coupling distance is preferably 85% to 99% of the height of the side wall portion.

The coupling distance means a portion where each engaging portion 22 and each of the side wall portions 11 are substantially sewn and the upper end portion and the engaging portion of the side wall portion 11, And that the coupling portion is present in a non-sewn state.

When the coupling distance is less than 85%, there is a fear that the coupling part can not withstand the load of the contents housed in the body part and is separated from the side wall part. When the coupling distance exceeds 99% And when the engaging portion is superimposed between the side wall portion and the bottom portion, the penetration portion of the sewing thread is overlapped to lower the strength of the upper end of the side wall portion and the lower end portion of the bottom portion.

The lower support portion 23 is connected to the lower ends of the engaging portions 22 and 24 and is coupled to the bottom portion 14. Here, the lower support portion 23 is a portion connected to the lower portions of the engaging portions 22 and 24 of the lifting belt 20.

For example, when the folded portion of the lifting belt 20 forms the loop 21, both ends of the lifting belt 20 are connected to each other and are disposed on the bottom portion 14 side, ) Can be formed.

Of course, it is also possible for the folded portion of the lifting belt 20 to be disposed on the bottom portion 14 to form the bottom portion 23. At this time, the both ends of the lifting belt 20 are connected to each other in a state of protruding upward from the lid part 13 to form the ring part 21. [

It is preferable that the bottom support portions of each of the four lifting belts are arranged so as to connect two adjacent edges out of the four corners of the bottom portion 14. [ In other words, each of the lower support portions 23 may be disposed so as to connect the center of one side edge of the bottom portion 14 and the center of the other side edge adjacent to the one side edge.

The end portions of the lower support portions 23 may be disposed at a position where the lower support portions 23 and the engagement portions 22 and 24 are connected to each other It is desirable to understand what it means.

Preferably, each of the lower support portions is disposed and fixed so as to be symmetrical with respect to a lower support portion of another lifting belt with respect to a center portion of each rim of the bottom portion. That is, each of the bottom support portions is preferably arranged to be symmetrical with respect to a virtual line connecting a center of one side edge of the bottom portion and a center of a side edge of the other side edge portion.

Of course, the bottom portion is not limited to a square shape, but may be provided in a rectangular shape. At this time, each of the bottom supports is mirror-symmetrical with respect to a virtual line connecting the centers of a pair of long edges facing each other at the bottom portion, and the center of a pair of short edges facing each other at the bottom portion is connected Each of the lower legs is mirror-symmetrical with respect to the line.

The lifting belt 20 has the engaging portions 22 and 24 coupled to the side wall portions 11 and 12 and the bottom portion 14 when lifted from the body portion 10 through the collar 21, The load of the contents accommodated in the body portion can be distributed and supported through the lower support portion 23 coupled to the lower support portion 23.

In addition, since the lifting force can be simultaneously transmitted to the upper portion and the lower portion of the body portion 10, the swinging of the body portion 10 can be minimized. Accordingly, a safety accident or damage to the contents which may be generated when the body 10 is rocked can be prevented, and safety during transportation can be improved.

A load is concentrated on the connecting portion between the lifting belt 20 and the body portion 10 to prevent the body portion 10 from being torn and the body portion 10 and the lifting portion The deterioration of the connecting portion between the belt 20 can be minimized, and the durability of the product can be improved.

Accordingly, the allowable tensile load of the tension belt 20 can be increased, so that it is possible to provide an infrastructure technique for manufacturing a large-capacity container bag.

It is preferable that the engaging portions 22 and 24 are disposed closely to the inner surface of the side wall portion 11 and the lower supporting portion 23 is disposed to surround the bottom surface of the bottom portion 14.

That is, the engaging portions 22 and 24 are coupled to the inner space side of the body portion 10 on which the contents are loaded, and the lower holding portion 23 is connected to the bottom of the body portion 10, (14).

Accordingly, when the container bags 300 are juxtaposed in parallel in the lateral direction and the plurality of body parts 10 are in contact with each other, it is possible to prevent the lifting belts 20 from catching each other The durability of the product can be improved by preventing the detachment force between the lifting belt 20 and the body portion 10 from being lowered due to the contact and friction between the lifting belt 20 and the lifting belt 20.

In addition, when the body 10 is lifted through the ring 21, the entire area of the lower support portion 23 is not pulled up by the engagement portion between the lower support portion 23 and the bottom portion 14 Thereby supporting the bottom portion 14, so that a more stable lifting is possible.

Even if the connection between the bottom support part 23 and the bottom part 14 is simple enough that the bottom support part 23 slides out of the bottom part 14 and does not deviate from the bottom part 14, Since it can be reliably supported and lifted, efficient coupling is possible.

The connecting portions of the coupling portions 22 and 24 and the ring portion 21 are superposed and coupled between the upper end of the side wall portion 11 and the lid portion 13, And the connection part of the lower support part 23 is superposed between the lower end of the side wall part 11 and the bottom part 14. [

Specifically, the lid portion 13, the side wall portions 11 and 12, and the bottom portion 14 may be connected to each other through sewing, adhesive or the like to form the body portion 10. At this time, the lifting belt 20 passes through the engagement portion between the lid portion 13 and the side wall portions 11, 12 and the engagement portion between the side wall portions 11, 12 and the bottom portion 14 .

Particularly, in most cases, the coupling between the respective members of the body 10 and the coupling between the body 10 and the lifting belt 20 is accomplished by sewing, 10) As the members are overlapped and joined to each other at the time of sewing between the members, the members can be superimposed and joined together at the time of one-time sewing so that more robust and efficient parts can be joined, and productivity of the product can be improved.

The central portion 14b of each rim 14a of the bottom portion 14 is formed to bend inward and the lower portion 14b of the side wall portion 11 connected to the rim center portion 14a of the bottom portion 14 The central portion 11f is preferably formed to be bent upward.

At this time, when the bottom part 14 and the side wall part 11 are coupled, a curved part 42 recessed inward along the upper side of the center of each side of the body 10 may be formed have.

Accordingly, when the contents are filled in the container bag 300, four pillars g are formed in four corners from the center of the body 10, and adjoining parts of the pillars are connected. That is, the cross section of the body portion 10 is formed in a crover shape, and four imaginary columns g can be formed at four corners of the center of the cross section.

The lower support portion 23 is disposed to support the central portion 14b at one side of the bottom 14 and the central portion of the other side adjacent to the side 14a in a diagonal direction.

The lifting belt 20 is coupled to the inside of the side wall portion 11 of the body portion 10 so as to surround the backside of the bottom portion 14, So that the adjacent rim center portion 14b of the portion 14 can be pulled inward.

That is, the connecting portions of the lower support portion 23 and the engaging portions 22 and 24 press the curved surface portion 42 formed on each surface of the body portion 10 toward the side of the column g to form the curved surface portion 42 can be more accurately maintained.

As a result, the overall shape of the container bag 300 maintains the square pillar, and the loading and storing of the container bag 300 can be prevented. The porosity between the container bags 300 is reduced and the same space can be used more efficiently.

In addition, since the load of the container bag 300 is dispersed to the bottom surface of the imaginary column formed with four pieces, the upward flow can be stably received and the upright shape can be firmly maintained.

Therefore, even if the height of the container bag 300 is further increased, the uprightness of the bag can be maintained, so that a larger capacity container bag can be manufactured to improve the storage capacity and transportation efficiency.

The contents m are accumulated from the center of the bottom portion 14 and the contents accumulated over a predetermined height are flowed toward the side wall portion 11. In this case,

At this time, the packaging material formed into the deformable space tends to accumulate in the maximum volume while maintaining a constant surface area when the contents are filled. Accordingly, the central portion of the sidewall portion may be caused to have a circular shape in order to secure a maximum area without changing the total length.

Since the curved surface portion 42 recessed inward is formed at the center of the side wall portion 11, the folding phenomenon can be prevented by a tensile force such as h.

In this way, each edge center portion 14b of the bottom portion 14 is formed to bend inward, and the edge center portion 14b of the bottom portion 14 can be pulled inwardly by the bottom support portion 23. [

The tension of the curved surface portion 42 and the tension of the body portion 10 through the joint portions 22 and 24 and the joint portion between the lower support portion 23 and the joint portions 22 and 24, May be pressed inwardly to prevent a folding phenomenon and the porosity between the body portions 10 arranged in parallel in the lateral direction may be minimized to improve storage and transportation efficiency.

The bottom support portion 23 is coupled to cover the backside of the portion where the bottom portion 14 protrudes corresponding to the lower side of each column g formed at the four corners of the body 10 at the center thereof .

Accordingly, the protruded portion of the bottom portion 14 is in contact with the ground, the pallet, or other container bags, thereby preventing intensive wear, thereby improving the durability of the product.

The edges of the lid portion 13 and the bottom portion 14 have an allowance to be longer than the width of the end portion of the side wall portion 11 to be engaged with the lid portion 13 and the bottom portion 14 14 are folded in a cone shape and are folded and connected to the side wall portion 11.

5 to 6, each of the rims of the lid portion 13 is formed to have a longer width than the width of the side wall portion 11 so that the margin portion 13b of the rim is folded to one side, The corner of the portion 13 may be connected to the side wall portion 11 in a folded state and overlapped by the cone 13c.

At this time, it is preferable that the lid part 13 is formed to have a size capable of covering the upper surface of the inner space in the folded state of the clearance part 13b.

8A, the lid portion 13 and the side wall portion 11 are mainly joined by sewing, and the inner surface of the side wall portion 11 and the lower surface of the lid portion 13, A sewing work is performed in a state where the outer side portion of the lid portion 13 is bent upward.

Referring to FIG. 8B, a portion of the upper portion of the inner space that can not be filled with the contents is formed due to the sewn portion 41 between the side wall portion 11 and the lid portion 13, The lid portion 13 can be expanded upward along with the filling of the contents as the margin portion 13b is formed on the rim of the lid portion 13.

Referring to FIG. 8C, the lid portion 13 may be protruded in a central portion of the lid portion 13 in a pyramid shape with a portion of the lid portion 13 overlapping with the cone portion 13c.

In detail, when the content is in the form of powder, air is contained between particles of the contents filled in the inner space. In order for the air to be discharged to the outside, it takes 7 to 10 hours depending on the weight or volume of the contents. Do.

That is, when the contents such as minute sludge are filled in the inside of the body part, the air between the contents of the container bag loaded on the lower part due to the load of the container bag stacked on the upper part in the multi-layer stacking, The container bag stacked on the container bag can not be properly supported and collapses easily.

At this time, a portion overlapped by the cone (13c) is spread on the edge of the lid part (13), and the central part of the lid part (13) protrudes higher than the rim so that the contents can be filled in a pyramid- The portion injected in the form of a space can fill the reduced volume with the internal air exhaust.

Accordingly, even though the container bag is stacked in a multi-layered state without discharging the air between the contents, even if the air is discharged by the pressure of the container bag loaded on the upper side, the upper part of the body part is not turned downward and the upper surface of the contents becomes flat, The container bag can be supported more stably.

5 to 7, each rim of the bottom portion 14 is formed to be longer than the bottom width of the side wall portion 11 so that the rim portion 14d of the rim is folded to one side, The corners of the portion 14 may be connected to the side wall portion 11 in a folded and coned shape by a cone 14c.

At this time, it is preferable that the bottom portion 14 is formed to have a size enough to cover the lower surface of the inner space in the folded state of the clearance portion 14d.

The bottom portion 14 and the side wall portion 11 are mainly joined by sewing so that the inner surface of the side wall portion 11 and the top surface of the bottom portion 14 are in contact with each other The sewing work is performed in a state where the outer side portion of the portion 14 is bent downward.

At this time, due to the sewn portion between the side wall portion 11 and the bottom portion 14, a portion that can not be filled with the contents is formed on the side of the lower edge of the internal space. When the contents are filled, The portion superimposed by the cone shape 14c at the corner can be slightly extended and protruded convexly.

As a result, the bottom portions of the bottom portions 14 corresponding to the bottom portions of the four pillars are projected downward, so that the loads applied to the bottom portion 14 are dispersed toward the corners, The lower portion of the container bag 300 can be more stably supported and the upright shape can be maintained without collapsing to the left and right.

A ring-shaped auxiliary lifting belt 30 for restraining and lifting a ring of another lifting belt disposed adjacent to the auxiliary lifting belt 30 is provided at the ring 21 of the lifting belt 20, And are disposed opposite to each other on one side and the other side of the body portion 10.

The auxiliary lifting belt 30 restrains two lifting belts disposed on one side of the body portion 10 and two lifting belts disposed on the other side of the body portion 10, The four lifting belts can be restrained and lifted when lifting the belt 30.

That is, when the two auxiliary lifting belts 30 disposed on both sides of the body portion 10 are lifted, the front and rear portions of the body portion 10, where the auxiliary lifting belt 30 is not disposed, Can be pulled and lifted by the lifting belt restrained by the lifting belt (30).

As a result, tensile force applied to the body portion 10 during lifting is dispersed throughout the entire outer surface of the body portion 10 without being concentrated on both sides of the body portion 10, and can be lifted if it is uniformly tightened. It is possible to reliably lift the body portion 10 without tearing the body portion 10 due to the concentration, and the safety of the product can be improved.

Even if two lifting belts 30 disposed on both sides are only used by using a lifting device such as a forklift or a hoist, if the lifting belt 20 is difficult to lift the four lifting belts at the same time, Or the body 10 can be stably lifted without being damaged by tearing or the like, so that it can be utilized in various lifting equipments and situations, so that the compatibility and usability of the product can be improved.

It is preferable that the auxiliary lifting belt 30 is provided in a ring shape so as to surround each of the hooks 21 so as to flow in the loop 21 of each lifting belt 20. [ Accordingly, the tensile force applied to the lifting belt 20 from the auxiliary lifting belt 30 during lifting through the auxiliary lifting belt 30 can be uniformly distributed to the engaging portions 22 and 24.

As described above, the present invention is not limited to the above-described embodiments, and variations and modifications may be made by those skilled in the art without departing from the scope of the present invention. And such modifications are within the scope of the present invention.

100, 200, 300: container bag 10:
11, 12, 110, 210: side wall portions 13, 120, 220:
13a: insertion tube 20: lifting belt
21, 140, 240: Loops 22, 24:
23: lower support portion 30: auxiliary lifting belt

Claims (5)

A sidewall portion having a plurality of sidewall portions formed at both ends of the sidewall portion so as to form an inner space in which the sideways are accommodated, A body portion including a cover portion connected to an upper end portion of the side wall portion and a bottom portion connected to a lower end portion of the side wall portion; And
A coupling portion that is connected to both ends of the ring portion and is respectively coupled along a center portion of one sidewall portion and a center portion of another adjacent sidewall portion; and a coupling portion connected to a lower end of the coupling portion, And a plurality of lifting belts including a lower support portion coupled to the lifting belt,
Wherein the engaging portion is disposed to be symmetrical with the engaging portion of the other lifting belt relative to the center of each of the side wall portions and is coupled to the inner surface of the side wall portion and the lower retaining portion is disposed to surround the back surface of the bottom portion, Wherein the connecting portion of the connecting portion is overlapped with the upper end of the side wall portion and the lid portion and the connecting portion of the connecting portion and the lower holding portion is overlapped between the lower end portion of the side wall portion and the bottom portion. The method according to claim 1,
Wherein a center portion of each rim of the bottom portion is formed to bend inwardly and a lower central portion of the side wall portion connected to a center portion of each rim of the bottom portion is formed to be bent upward,
The lower support portion is arranged to support the center portion of one side edge of the bottom portion and the center portion of the other side edge adjacent to the one side edge in a diagonal direction and to be symmetrical with respect to the bottom edge portion of another lifting belt with respect to the center of each edge of the bottom portion Characterized in that the container bag is fixed. delete The method according to claim 1,
Each of the rims of the lid portion and the bottom portion has an allowance so as to be longer than the width of the side wall portion end portion to which the lid portion and the bottom portion are coupled,
Wherein the lid portion and each of the corner portions of the bottom portion are folded in a cone shape so as to be folded and connected to the side wall portion. The method according to claim 1,
Wherein the coupling distance between each of the engaging portions and each of the side wall portions is shorter than the height of the side wall portion, and the coupling distance is 85% to 99% of the height of the side wall portion.

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