KR102220494B1 - Inner part of container bag, container bag therewith and manufacturing method thereof - Google Patents

Abstract

The present invention relates to an inner member of a container bag, a double container bag, and a manufacturing method thereof. The inner member of the container bag is made by joining an outer shell made of a waterproof material to an inner shell formed by weaving synthetic resin yarns. The inner member includes: the inner shell of which a horizontal cross section forms a closed curved surface; and the outer shell provided as a plurality of outer shells. Some of the outer shells are joined to the outer surface of the inner shell, and the others are joined to the inner surface of the inner shell. The outer shell joined to the inner surface of the inner shell and the outer shell joined to the outer surface of the inner shell are joined to each other so that at least portions of the outer shells overlap each other inside and outside the inner shell. According to the present invention, the double container bag can automate most of the processes for manufacturing the inner member, thereby reducing the manufacturing time and price.

Description

Container bag inner member, double container bag, and manufacturing method thereof {INNER PART OF CONTAINER BAG, CONTAINER BAG THEREWITH AND MANUFACTURING METHOD THEREOF}

The present invention relates to a container bag inner member, a double container bag, and a method of manufacturing the same, and more particularly, to a container bag inner member, a double container bag, and a method of manufacturing the same, which can automate most of the processes.

Conventionally, in order to transport or store individual unpacked goods in the form of bulk goods, a single bag type bulk cargo transport container bag has been mainly used. However, in the case of a single bag type, the contents contained in the container bag intensively applied a load to the lower and side portions of the bag, causing the container bag to expand and protrude severely to the outside. Therefore, there is a problem in that the container bag is easily damaged or the shape of the container bag is not consistent, making it difficult to stack the container bags.

In order to solve the problem of such a single bag type container bag, a double bag type container bag has been proposed. An example of a double bag container bag is disclosed in Korean Patent Registration No. 10-0188806. The double bag container bag has a double bag structure in which an inner member 100 (inner bag) is contained in an outer member 100 (outer bag) as shown in FIGS. 1 and 2. In order to prevent stomach bloating, the inner member is composed of an inner member outer skin (210, hereinafter referred to as'skin') and an inner member inner skin (220, hereinafter referred to as'endothelium'). Typically, the outer member and the inner skin are woven with synthetic resin yarn to benefit weight reduction, and the outer shell is formed of a waterproof material to protect the contents from external moisture. The container bag is not shown in the drawing, but has an inlet at the top and an outlet at the bottom.

Since the inner member made of the outer skin and the inner skin is manufactured by hand, the manufacturing cost is high, and thus there is a problem that it cannot be widely distributed in the market. 3 and 4 are a horizontal cross-sectional view of an outer shell and a horizontal cross-sectional view of an inner shell forming an inner member in a conventional double container bag. When explaining the traditional method of manufacturing the inner member using FIGS. 3 and 4, after the operator inserts the inner skin 220 formed of one member into the outer shell 210 formed of one member (whole body without incision line) It is manufactured by sequentially joining the parts marked with'X'. The bonding site of the outer skin 210 and the endothelium 220 can also be identified in FIG. 1, and the outer skin 210 and the endothelium 220 at a plurality of points indicated by the reference symbol'X' are from the bottom to the top (or in the opposite direction). In order).

The inner member reaches 100 to 110 cm in width, 100 to 110 cm in height, and approximately 125 cm in height based on FIG. 1. At the time of work, since it is manufactured in a state placed on a flat work floor, as shown in FIG. 5, an outer skin 210 having a width of 220 cm and a height of 125 cm is placed based on the maximum size, and an inner skin 220 having a similar size therein. It is not easy to do manual work because the joints are manually manufactured in the state of inserting. In order to manufacture an inner member having an inlet and an outlet, as shown in Fig. 5, an inlet and outlet forming portion is added to have a size of about 220 cm in width and a length of about 230 cm to 320 cm in the outer skin and inner skin. It is difficult to manufacture because it has to be done, and because it has to be done by a skilled worker, the production cost is high, so it is not applicable to the field.

If the inner member 200 completed through the above process is sewn to each other using the outer member 100 completed through a separate process and the corner rods 115a, 115b, 115c, 115d at the top and bottom of the four corners, the double Container bag production is completed. The corner bar portions 115a, 115b, 115c, and 115d are manufactured by weaving synthetic resin yarn, and are formed in the form of a band having a width of approximately 10 cm or less. Both ends of the corner bar portions 115a, 115b, 115c, and 115d are sewn with the outer member 100 and the inner member 200, respectively.

On the other hand, the conventional double container bag has a problem in that when the contents stored therein are discharged to the lower outlet, foreign matters stuck in the interspace are discharged to the outside together. 6 is a schematic cross-sectional view in a vertical direction showing that a space is formed between an outer member and an inner member in a conventional container bag. Since the outer member 100 and the inner member 200 are sewn only at the upper and lower four corners as shown in FIGS. 1 and 2, they are not closely coupled to each other, and a space between them is created. Due to this structural problem, foreign matter remaining in the interspace 150 formed between the outer member 100 and the inner member 200 when discharging the contents to the bottom as shown in FIG. 5 is discharged together with the contents. There was a problem in that a work process for filtering is added.

The space created between the outer skin 210 and the inner skin 220 forming the inner member 200 also causes foreign matter to accumulate and are discharged together when the contents are discharged. As shown in FIGS. 3 and 4, the outer skin 210 and the endothelium 220 are bonded to each other from the bottom to the top of the outer skin 210 and the endothelial 220 at a portion marked X by a to h. However, the sides between the outer skin 210 and the endothelium 220 a to b, c to d, e to f, and g to h are not joined to each other. A foreign substance is trapped in the space between the outer skin 210 and the inner skin 220 and is discharged together when the contents are discharged.

In Patent Document 2 below, in order to solve the problem that foreign matter accumulated in the interspace is discharged together with the contents, a container bag in which a separate blocking rib is installed to block the space between the outer member and the inner member is proposed. However, since a separate blocking rib must be installed under the container bag, manufacturing cost is increased, management is difficult, and the bag is damaged due to the blocking rib.

Another problem is that when a hole is made in any one of the outer shell formed of a waterproof material, external moisture affects the entire contents. For example, it is assumed that a hole (not visible because only the external member is exposed in the perspective view of FIG. 1) is formed at the point'P' of the outer shell shown in FIG. 1. When manufactured in a state provided with an inlet port and an outlet port according to a conventional double bag container manufacturing method, it has a shape as shown in FIG. 7. 7 is a perspective view of an inner member manufactured by a conventional manufacturing method, and can be divided into a main body in which contents are stored, an input part provided with an inlet into which the contents are inserted, and a discharge part having an outlet through which the contents are discharged. As shown in FIG. 7, the icosahedron consisting of vertices c"-c-c'-c"'-d"-d-d'-d"' is c"-c-c'-c"' and d"- Since it is joined only along the side marked d-d'-d"', if there is a perforation at the point'P' of the outer shell, the moisture that has penetrated into the hole area will be at the vertex c"-c-c'-c"'-d"- It affects the contents that come in contact with the side consisting of d-d'-d"'. In particular, moisture penetrating through the side made of c"-cdd" affects the contents accumulated on the upper part of the body, and similarly, the moisture penetrated through the side made of c'-c"'-d"'-d' Moisture has a problem that affects the contents accumulated under the body part.

Patent Document 1: Korean Patent Registration No. 10-1144432 (registered on May 02, 2012) Patent Document 2: Korean Patent Publication No. 10-2017-82354 (published on July 14, 2017)

In order to solve the above problems, the present invention is a method for manufacturing an inner member that can reduce manufacturing cost by bonding an outer skin formed of a waterproof material and an inner skin woven synthetic resin yarn with an automated device, and an inner member manufactured by such an automated method. It aims to provide a member.

The present invention has a structure in which foreign matters do not accumulate even without installing a separate structure in the space between the outer member and the inner member as to solve another problem presented above. An object of the present invention is to provide a method for manufacturing an inner member that does not affect the upper and lower surfaces of the stored contents, and an inner member manufactured by such an automated method.

The above object of the present invention is a method for manufacturing an inner member of a container bag formed by mutually bonding a waterproof outer skin and an inner skin woven synthetic resin yarn, comprising an inner skin consisting of a first inner skin and a second inner skin having a first width, and the first A first step of preparing a skin consisting of a first and second skins having a second width less than the width, and a third and fourth skins having a third width less than the second width, and on the top of the first endothelium After placing the first skin in the center and placing the third and fourth skins on the left and right sides under the first endothelium respectively, the first and the first skins are joined along the height direction at a plurality of points, and the third skin A second step of joining one short side of the first endothelium along the height direction at point a, and joining one short side of the fourth outer layer along the height direction with the first endothelium at point d, and a second step under the second endothelium. After placing the outer skin in the center and placing the third and fourth outer skins on the upper left and right sides of the second endothelium, respectively, the second inner skin and the second outer skin were joined along the height direction at a plurality of points. A third step of joining the short side part along the height direction to the second endothelium at point h, and joining the other short side part of the fourth outer sheath along the height direction to the second endothelium at point e, and a second part of one short side of the first endothelium A container bag comprising a fourth step of forming a first coupling portion by combining with one short side portion of the endothelium, and forming a second coupling portion by combining the other short side portion of the first endothelium with the other short side portion of the second endothelium. It can be achieved by a method of manufacturing the inner member.

In the above, in the second step, one short side of the third sheath placed under the first endothelium is placed toward the center of the left short side of the first sheath placed on the first endothelium, so that the first and third sheaths are the first endothelium. It is joined to have an overlapping area in the upper and lower sides of the first endothelium, and one short side of the fourth outer sheath placed on the lower side of the first endothelium is placed toward the center rather than the right short side of the first sheath placed on the first endothelium. 4 The outer skin is bonded to have a region overlapping from the top and bottom based on the first endothelium.

In addition, in the third step, the other short side of the third sheath placed on the top of the second endothelium is placed toward the center of the left short side of the second sheath placed under the second endothelium, so that the second and third sheaths form the second endothelium. As a reference, the other short side of the fourth sheath, which is joined to have an overlapping area from the top and bottom, and placed on the second endothelium in the third step, is placed toward the center of the second sheath from the right short side of the second sheath placed under the second endothelium. The outer skin and the fourth outer skin are joined to have a region overlapping from the top and the bottom based on the second endothelium.

Another object of the present invention is an inner member of a container bag made by mutually bonding a waterproof outer skin and an inner skin woven synthetic resin yarn, the inner skin having a horizontal cross section forming a closed curved surface, and a plurality of outer skins. Some of the outer skin is joined to the outer surface of the inner skin, the rest of the outer skin is joined to the inner surface of the endothelium, and the outer skin that is joined to the inner surface of the endothelium and the outer skin that is joined to the outer surface of the endothelium are joined so that at least some areas overlap the inner and outer surfaces of the inner skin. It can be achieved by the inner member of the container bag, characterized in that the.

The double container bag according to the present invention is able to automate most of the manufacturing process of the inner member, so that the manufacturing time can be shortened, so that the manufacturing cost can be maintained at low cost.

In addition, since the outer member, the outer skin and the inner skin of the inner member are joined to each other along the entire circumference of the upper and lower rim portions of the inner member body, the space between the inner member and the outer shell that may occur between the inner member and the outer skin Since the interspace that may occur between the members is formed so as to be sealed, it is possible to prevent foreign matter from being caught in the interspace.

In addition, even if a perforation occurs in any part of the outer shell formed of a waterproof material, moisture penetrating by the perforation affects only the contents directly in contact with the surface where the perforation occurs, so that contamination of the contents due to the perforation can be minimized. Became.

1 is a perspective view of a conventional double container bag having an inner member body portion.
Figure 2 is a horizontal cross-sectional view of Figure 1;
Figure 3 is a horizontal cross-sectional view of the outer shell constituting the inner member in the conventional double container bag.
Figure 4 is a horizontal cross-sectional view of the inner skin constituting the inner member in the conventional double container bag.
Figure 5 is a front view showing the size of the fabric used to manufacture a conventional double container bag.
6 is a schematic cross-sectional view in a vertical direction showing that a space is formed between an outer member and an inner member in a conventional container bag.
7 is a perspective view of an inner member manufactured by a conventional manufacturing method.
8 is a perspective view of an inner member according to an embodiment of the present invention.
9 is a horizontal cross-sectional view taken along AA′ in FIG. 8.
Figures 10A to 10C are an embodiment of the inner member manufacturing process according to the present invention.
11 is a perspective view showing an inner member according to an embodiment of the present invention in a state before the input unit and the discharge unit are joined.
12 is a perspective view of an inner member according to an embodiment of the present invention in a state in which the input part and the discharge part are joined.
13 is a partial sectional view in the direction BB′ of FIG. 12.
14 is a vertical sectional view of a double container bag according to an embodiment of the present invention.
16 is a final manufacturing view of an inner member of an embodiment according to the present invention in which the endothelium is formed as one member.
17 is a perspective view of an inner member manufactured in the same manner as in FIG. 16;
18 is a horizontal cross-sectional view of an inner member manufactured in the same manner as in FIG. 16;

The terms used in the present invention are used only to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance.

In addition, in the present specification, the term "on or above" means to be positioned above or below the target portion, and does not necessarily mean to be positioned above or below the direction of gravity. In addition, when a part such as a region, plate, etc. is said to be "on or on" another part, it is not only in contact with or spaced apart from the other part "directly on or on", as well as another part in the middle. This includes cases where there is.

In addition, in the present specification, when one component is referred to as "connected" or "connected" to another component, the one component may be directly connected or directly connected to the other component, but specially It should be understood that as long as there is no opposing substrate, it may be connected or may be connected via another component in the middle.

In addition, in the present specification, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are used only for the purpose of distinguishing one component from another component.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

8 is a perspective view of an inner member according to an embodiment of the present invention, and FIG. 9 is a horizontal cross-sectional view in the direction A-A′ in FIG. 8. In FIGS. 8 and 9, for convenience of description, the outer member is omitted and only the inner member is illustrated. The inner member 200 according to the present invention is formed of an outer skin 210 and an endothelium 220, and the inner skin 220 is formed of a first endothelium 220a and a second endothelium 220b having the same width and height. do. In the first endothelium 220a and the second endothelium 220b, one short side portion and the other short side portion are bonded to each other by means of rods or bonding (heat fusion). The portions to which the first endothelium 220a and the second endothelium 220b are joined will be referred to as a first coupling portion (i) and a second coupling portion (j), respectively. In FIGS. 8 and 9, the first endothelium 220a and the second endothelium 220b have the same width and height, but may be configured to have a slight difference.

The outer shell 210 is formed of a first outer shell 210a, a second outer shell 210b, a third outer shell 210c, and a fourth outer shell 210d. The first outer skin 210a is joined along the height direction with the outer surface of the first endothelium 220a at points a, b, c, and d. Points a and d are points closest to the first coupling portion (i) and the second coupling portion (j), respectively. Similarly, the second sheath 210b is joined along the height direction with the outer surface of the second endothelium 220b at points e, f, g, and h. Points e and h are points closest to the second coupling portion (j) and the first coupling portion (i), respectively.

The third sheath 210c has the first coupling portion (i) in the center, and is bonded to the first endothelium 220a at point a, and is bonded to the second endothelium 220b at point h. The third sheath 210c does not necessarily need to be bonded to the first endothelium 220a at point a, and may be bonded to the first endothelium 220a at a location farther from the first coupling portion i than point a. Do. Similarly, the third sheath 210c does not necessarily need to be bonded to the second endothelium 220b at point h, and it is bonded to the second endothelium 220b at a location farther from the first coupling portion (i) than point h. It is also okay. However, if the bonding point is changed to a point other than a and h, the number of tasks for performing thermal fusion increases, so it is preferable to bond with the first endothelium 220a and the second endothelium 220b, respectively, at possible points a and h.

Similarly, the fourth sheath 210d has the second coupling portion j in the center, and the first endothelium 220a is bonded to the inside at point d, and the second endothelium 220b is bonded to the inside at point e. It goes without saying that the bonding point may be similarly changed as described in the third outer shell 210c. When the third and fourth outer shells 210c and 210d are joined in the same way as above, regions overlapping with the first and second outer shells 210a and 210b and the inner skin respectively exist. Can prevent penetration of the contents.

8 and 9, the width of the first outer skin 210a between points a to b and the width of the first outer skin 210a between points c to d are the first endothelium between points a to b, respectively. It is formed larger than the width of 220a and the width of the first endothelium 220a between points c to d, and the width of the second outer skin 210b between points e to f and the second outer skin between points g to h ( The width of 210b) was formed to be larger than the width of the second endothelium 220b between points e to f and the width of the second endothelium 220b between points g to h, respectively. By forming in this way, a first edge space 160a formed by being surrounded by the first endothelium 220a and the first outer cover 210a at points a to b is created, and when the contents are accumulated inside, a square shape is formed. Contributes to maintaining. Similarly, the second edge space 160b formed by being surrounded by the first endothelium 220a and the first outer covering 210a at points c~d, and the second endothelium 220b and the second outer covering at points e~f The third edge space portion 160c formed by being surrounded by (210b) and the fourth edge space portion 160d formed by being surrounded by the second endothelium 220b and the second shell 210b at points g~h Is formed.

The first endothelium 220a formed at points a to b, the first endothelium 220a formed at points c to d, the second endothelium 220b formed at points e to f, and the second endothelium 220b formed at points g to h 2 The endothelium 220b is also called a partition wall, and a plurality of through holes 120 are formed in each partition wall along the height direction. The contents are moved to the corner space through the through hole 120.

Hereinafter, a process of manufacturing an internal member according to an embodiment of the present invention will be described with reference to FIGS. 10A to 10C. First, the first inner skin 220a, the second inner skin 220b, the first outer skin 210a, the second outer skin 210b, the third outer skin 210c, and the fourth outer skin 210d are prepared. The first endothelium 220a and the second endothelium 220b are formed to have the same width and height by weaving synthetic resin yarn. The first endothelium 220a and the second endothelium 220b may be manufactured to have different widths. Since the inner skin is formed by weaving synthetic resin yarn, it cannot provide a waterproof function.

The first and second shells 210a and 210b are formed of a waterproof material to have the same width and height. The first sheath 210a and the second sheath 210b may be manufactured to have different widths. Similarly, the third and fourth shells 210c and 210d are formed of a waterproof material to have the same width and height. The third sheath 210c and the fourth sheath 210d may be manufactured to have different widths. Since the inner skin and the outer skin must be bonded to each other, it is better to form the same material as possible. For example, the inner skin may be formed by weaving a thread formed of a PE (Poly Ethylense) material, and the outer skin may be formed of a PE material vinyl.

The width of the first endothelium 220a and the second endothelium 220b is the largest, and next, the widths of the first and second skins 210a and 210b are large, and the third and fourth skins 210c and 4 210d) was formed to have the smallest width, and it is preferable to form all the same heights. A plurality of through holes were formed along the height direction in the first inner wall 220a between points a to b and between points c to d, and the second inner wall 220b between points e to f and between points g to h. .

Next, as shown in Fig. 10A, the first outer skin 210a is located in the center based on the width on the upper part of the first endothelium 220a, and the third outer skin 210c is respectively located on the left and right sides under the first endothelium 220a. And one short side of the fourth sheath 210d. The first endothelium 220a and the first outer sheath 210a are joined by thermal fusion at points a, b, c, and d along the height direction, respectively, and one short side of the third sheath 210c is connected to the first endothelium at point a. It is joined along the height direction with (220a), and one short side of the fourth outer shell (210d) is joined along the height direction with the first endothelium (220a) at point d. As shown in Fig. 10A, the width of the first sheath 210a between points a to b and the width of the first sheath 210a between points c to d are the first endothelium 220a between points a to b, respectively. Bonding to form a larger than the width of the first endothelium (220a) between the width and c ~ d point.

When connecting the first endothelium 220a and the first outer layer 210a on the upper side at point a, place the third outer layer 210c under the first endothelium 220a and join them together to reduce the work man-hour. I can. Similarly, when the first outer skin 210a is joined to the first endothelium 220a from the top at point d, the fourth outer shell 210d is simultaneously joined at the lower portion of the first endothelium 220a.

The reason why the expression of the short side is used instead of the expression of the short side in the present invention is that it is not joined at the short side (end side) constituting the inner skin or the outer skin, but is joined at the point entering the inner side from the short side. In particular, as shown in the enlarged view of the inside of the circle of FIG. 10A, the short side portions of the first outer shell 210a and the third outer shell 210c are rolled in the direction of the first endothelium 220a and folded in two layers. 1 It goes without saying that it can be bonded to the endothelium 220a.

Then, as shown in FIG. 10B, the second outer skin 210b is located at the center based on the width under the second endothelium 220b, and the third outer skin 210c is respectively located on the left and right sides of the lower second endothelium 220b. And the other short side of the fourth sheath 210d. The second inner skin 220b and the second outer skin 210b are joined by heat fusion at points e, f, g, and h along the height direction, respectively, and the other short side of the third outer shell 210c is connected to the first endothelium at point h. Bonding 220a along the height direction, and bonding the other short side of the fourth outer sheath 210d along the height direction with the first endothelium 220a at point e. As shown in Fig. 10A, the width of the second sheath 210b between the points e to f and the width of the second sheath 210b between points g to h are the second endothelium 220b between points e to f, respectively. Bonding to form a larger than the width of the second endothelium (220b) between the g ~ h point.

When the second outer skin 210b is joined to the second endothelium 220b at the point h, the third outer skin 210c is simultaneously joined at the upper portion of the second endothelium 220b. Similarly, when the second shell 210b is bonded to the second endothelium 220b at the point e, the fourth sheath 210d is simultaneously bonded on the second endothelium 220b.

Next, as shown in Fig. 10C, one short side of the first endothelium 220a is bonded to one short side of the second endothelium 220b along the height direction by means of a bar or thermal fusion to form a first coupling part (i). And, similarly, the other short side of the first endothelium 220a and the other short side of the second endothelium 220b are bonded along the height direction by means of a bar or thermal fusion to form a second coupling portion j.

In order to manufacture a container bag equipped with an input part and a discharge part, after the container bag is manufactured as shown in FIG. 10C, the lower rim T of the input part 250 manufactured through a separate process is thermally fused to each other along the upper rim S as a whole. And the upper rim (T') of the separately manufactured discharge part 260 along the entire lower surface rim (S') is bonded by thermal fusion, the inside where the input part 250 and the discharge part 260 are provided. The fabrication of the member is completed. FIG. 11 is a perspective view showing the inner member of an embodiment according to the present invention in a state before the input portion and the discharge portion are joined, and FIG. 12 is a view of the inner member of the embodiment according to the present invention in a state in which the input portion and the discharge portion are joined. It is a perspective view, and FIG. 13 is a partial sectional view in the direction BB' of FIG. 12.

The inner member according to the present invention can minimize contamination of contents even if some areas are perforated. As shown in FIG. 12, when a perforation occurs at point P of the outer skin, the inner member according to the present invention directly contacts the surface consisting of ``d-d'-e'-e'' by the perforation (P). Only the contents will be affected. As described above, the upper and lower rims of the inner member are entirely joined along the upper and lower rims of the inlet and discharge parts, so any one of the outer shells constituting the surface consisting of ``d-d'-e'-e'' This is because even if a perforation occurs in the place, the effect of this affects only the contents in contact with the surface composed of “d-d'-e'-e”.

As shown in Fig. 13, the inner member body according to the present invention is joined with the lower rim of the input unit 250-1 formed of the same material as the outer shell while leaving a margin width of about D (about 5 cm) along the upper rim. . Similarly, if the inner member is joined with the upper rim of the discharge part 260-1 formed of the same material as the outer shell while leaving a margin width of about D (about 5 cm) along the lower rim of the inner member, the inner member with the input part and the discharge part attached. Is completed. Since the endothelium is used only for maintaining a square shape when accumulating contents, it is not necessary to extend to the input unit 250-1 and the discharge unit 260-1, so the input unit 250-1 and discharge The part 260-1 is formed only with the outer shell.

The inner member shown in FIGS. 11 to 13 is combined with the outer member to form a double container bag. The perspective view of the double container bag coupled to the outer member is not shown separately because there is no difference from FIGS. 11 and 12. When the double container bag coupled to the outer member is cut in the BB' direction as shown in FIG. 12, the vertical cutaway view may have a shape as shown in FIG. 14, and when cut in the horizontal direction, the corresponding horizontal cutaway view is shown in FIG. 15 It can have the same shape as

As shown in Fig. 14, in the double container bag according to the present invention, the outer member 100 is located along the outer circumference of the inner member outer shells 210a and 210b, and the upper and lower rims of the outer member 100 are each inner member. It is joined together by heat fusion along the upper and lower edges of the. In addition, the outer member input unit 250-2 is bonded to the outside of the input unit 250-1 formed as an outer shell on the upper edge of the inner member, and in a similar manner, the input unit 250 formed as an outer skin at the lower edge of the inner member The external member discharge part 260-2 is joined to the outside of -1). In addition, as shown in Fig. 15, the outer member 100 is formed with a slight interspace outside the inner member.

The inner member shown in FIGS. 10A to 10C is a case in which the endothelium is formed of two members (a first inner member and a second inner member) and is formed by combining them. It goes without saying that the endothelium can be formed as a single member if necessary. In the case of forming the endothelium as a single member, the manufacturing process is somewhat cumbersome, but it is still possible to automate most of the process compared to the traditional manufacturing method. 16 is a drawing of the final fabrication of the inner member of an embodiment according to the present invention in which the inner skin is formed as one member, and is a view corresponding to FIG. 10C. The endothelium 220 of the embodiment shown in FIG. 16 is formed of a single member without a first coupling portion and a second coupling portion.

17 is a perspective view of an inner member manufactured in the same manner as in FIG. 16, and FIG. 18 is a horizontal cross-sectional view. It is the same as the perspective view and plan view of the embodiment shown in FIGS. 8 and 9 except for the configuration in which the endothelium 220 is formed as a single member.

In the above, preferred embodiments of the present invention have been described using specific terms, but such terms are only for clarifying the present invention, and the embodiments and described terms of the present invention depart from the spirit and scope of the following claims. It is obvious that various changes and changes can be made without the fact. These modified embodiments should not be individually understood from the spirit and scope of the present invention, but should be said to fall within the scope of the claims of the present invention.

100: external member
115a, 115b, 115c, 115d, 116a, 116c: corner bar
150: interspace
160a: first edge space 160b: second edge space
160c: third edge space 160d: fourth edge space
200: inner member 210: inner member outer shell
210a: first sheath 210b: second sheath
210c: third sheath 210d: fourth sheath
220: inner member endothelium 220a: first endothelium
220b: second endothelium 250: input portion
250-1: input part formed by the outer skin
250-2: input part formed of an external member
260: discharge unit
260-1: discharge part formed by the outer skin
260-2: discharge part formed by an external member
P: perforation site X: joint site

Claims (9)

A method for manufacturing an inner member of a container bag formed by mutually bonding a waterproof outer skin and an inner skin woven with synthetic resin yarn,
An endothelium consisting of a first endothelium and a second endothelium having a first width, a first skin having a second width less than the first width, and a third skin having a third width less than the second width and the second skin And a first step of preparing an outer shell composed of a fourth outer shell,
After placing the first outer skin in the center on the upper part of the first endothelium, and placing the third and fourth skins on the left and right sides of the lower part of the first endothelium, respectively, the first endothelium and the first outer skin are joined along the height direction at a plurality of points. And a second step of joining one short side of the third shell along the height direction with the first endothelium at point a, and joining the one short side of the fourth shell along the height direction with the first endothelium at point d,
-In the second step, one short side of the third sheath placed under the first endothelium is placed toward the center rather than the left short side of the first sheath placed above the first endothelium, so that the first and third skins are based on the first endothelium. It is joined to have an overlapping area at the top and bottom. -
-In the second step, one short side of the fourth sheath placed under the first endothelium is placed toward the center rather than the right short side of the first sheath placed above the first endothelium, so that the first and fourth skins are based on the first endothelium. It is joined to have an overlapping area at the top and bottom. -
After placing the second skin in the center under the second endothelium, and placing the third and fourth skins on the upper left and right sides of the second endothelium, respectively, the second and second skins are joined along the height direction at a plurality of points. And a third step of joining the other short side of the third shell along the height direction with the second endothelium at point h, and the other short side of the fourth shell joining the second endothelium at the point e along the height direction,
-In the third step, the other short side of the third outer sheath placed on the upper part of the second endothelium is placed toward the center of the left short side of the second outer sheath placed under the second endothelium, so that the second and third outer skins are based on the second endothelium. It is joined to have an overlapping area at the top and bottom. -
-In the third step, the other short side of the fourth sheath placed on the upper part of the second endothelium is placed toward the center of the second sheath placed under the second endothelium, so that the second and fourth skins are based on the second endothelium. It is joined to have an overlapping area at the top and bottom. -
The fourth step of combining one short side of the first endothelium with one short side of the second endothelium to form a first coupling part, and combining the other short side of the first endothelium with the other short side of the second endothelium to form a second coupling part Method for manufacturing a container bag inner member comprising a.
The method of claim 1,
The first outer skin and the first endothelium are mutually joined along a height direction at the points a, b, c, and d, respectively,
The second outer skin and the second endothelium are mutually bonded along the height direction at the e point, f point, g point and the h point, respectively,
The width of the first envelope between points a to b and the width of the first envelope between points c to d are respectively the width of the first endothelium between points a to b and the first endothelium between points c to d Is formed larger than the width of
The width of the second envelope between the e-f points and the width of the second envelope between the g-h points are respectively the width of the second endothelium between the e-f points and the second endothelium between the g-h points Method for manufacturing a container bag inner member, characterized in that formed larger than the width of.
The method of claim 2,
The first inner wall between the points a to b and the points c to d, and the second inner wall between the points e to f and between the points g to h are each provided with a plurality of through holes formed along the height direction. Method for manufacturing a container bag inner member, characterized in that.
delete In the inner member of a container bag formed by mutually bonding a waterproof outer skin and an inner skin woven synthetic resin yarn,
The endothelium in which a horizontal cross section forms a closed curved surface,
The outer skin is composed of a plurality, some of the plurality of outer skins are bonded to the outer surface of the endothelium, and the rest of the outer skin is bonded to the inner surface of the endothelium,
The outer skin bonded to the inner surface of the endothelium and the outer skin bonded to the outer surface of the endothelium are bonded so that at least some regions overlap the inner and outer surfaces of the inner skin,
The endothelium has a constant width and height and the first endothelium and the second endothelium to which both short sides are mutually coupled,
-The first endothelium and the second endothelium mutually bonded portion is formed of a first coupling portion and a second coupling portion-
The shell is composed of a first shell, a second shell, a third shell and a fourth shell,
The first shell is joined along the height direction at four points (points a, b, c, d) on the outer surface of the first endothelium,
-Points a, b, c, and d are points that are sequentially located from one short side of the first shell to the other cross-section while maintaining a mutually separated distance, and point a is the point closest to the first coupling part. -
The second shell is joined along the height direction at four points (points e, f, g, h) on the outer surface of the second endothelium,
-Points e, f, g, and h are points that are sequentially located to one end face while maintaining a mutually spaced distance from the other short side of the second shell, and point e is the point closest to the second coupling portion. -
The third shell is joined along a height direction to some inner surfaces of the first and second endothelium adjacent to the first coupling part,
The fourth outer skin is an inner member of a container bag, characterized in that the first inner skin and a portion of the inner surface of the second inner skin adjacent to the second coupling portion are joined along a height direction.
The method of claim 5,
The third shell is bonded to a partial inner surface of the first endothelium and the second endothelium at the points a and h,
The fourth outer shell is an inner member of a container bag, characterized in that it is bonded to a portion of the inner surfaces of the first and second endothelium at the points d and e.
The method of claim 5,
The width of the first envelope between points a to b and the width of the first envelope between points c to d are respectively the width of the first endothelium between points a to b and the first endothelium between points c to d Is formed larger than the width of
The width of the second envelope between the e-f points and the width of the second envelope between the g-h points are respectively the width of the second endothelium between the e-f points and the second endothelium between the g-h points The inner member of the container bag, characterized in that formed larger than the width of.
The method of claim 7,
The first inner wall between the points a to b and the points c to d and the second inner wall between the points e to f and between the points g to h are provided with a plurality of through holes respectively formed along the height direction. The inner member of the container bag, characterized in that.
The inner member of the container bag according to any one of claims 5 to 8, and
Double container bag comprising an external member coupled to the outside of the inner member.

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