KR101524179B1 - Storage bag - Google Patents

Abstract

A storage bag of the present invention comprises a first member including first side wall to a fourth side wall; a second member arranged on the inner side of the first member, and surrounding a stored material; a welding part formed by contact of the first member and the second member; and a side pillar part including a first side, a second side, and a third side as a side wall.

Description

{STORAGE BAG}

The present invention relates to a receiving bag capable of receiving a fluidic object such as a small particle of solid or liquid.

The receiving bag is used to accommodate small particle objects such as liquids, solids of small grains.

The receptacle bag is preferably lightweight, small in volume before the object is accommodated, and has properties such that leakage of the object or corrosion of the receptacle is prevented after the object is received. As a representative example satisfying these characteristics, there is a plastic bag.

However, according to the plastic bag, it is difficult to keep the outer shape of the bag after the object is received in a desired form. When the object is stored in the inside, the bag can not be held upright because it can not overcome the load of the object, and there is a problem that it collapses to the side. As a result, there arises a problem that it is difficult to load the bag in which the object is accommodated.

Korean Utility Model Registration No. 20-0319844 discloses a plastic bag in which an adhesive is packed, but no technique for keeping the shape of the plastic bag constant according to the state of the adhesive, the position where the bag is placed, and the capacity is not shown.

Korean Registered Utility Model No. 20-0319844

The present invention is intended to provide a receiving bag which retains the shape of a rectangular parallelepiped even when an object of small particle size is accommodated.

That is, the surfaces of the receiving bags are not convex but held close to the plane in the state where the object is accommodated, thereby reducing the consumption of the loading space at the time of displaying the goods.

In addition, it is intended to ensure the uprightness of the receiving bag so that it does not collapse, thereby securing the product competitiveness by differentiating the packaging.

Further, the present invention is intended to suppress the occurrence of bending of each of the receiving bags and to prevent the printing state of each surface from being damaged.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise forms disclosed. Other objects, which will be apparent to those skilled in the art, It will be possible.

In one embodiment, the receptacle of the present invention includes a first sidewall on which the junction protrusion is located and a third sidewall facing the first sidewall, wherein a junction protrusion formed by joining both ends of the side wall is formed, A first member including a first sidewall and a fourth sidewall between the first sidewall and the third sidewall; A second member disposed inside the first member and enclosing the water; A fused portion formed at a central portion of each of the side walls formed by joining the first member and the second member; A side post formed at the periphery of the fused portion; .

In one embodiment, the cross-section of the side post forms an acute-angled triangle.

In one embodiment, a portion of the second member extending from one fused portion to another fused portion on a cross-section is referred to as a first side, a portion extending from one fused portion to the edge of the first member, When a portion of the first member is defined as a second side and a portion of the first member extending from the other fused portion to the edge of the first member is defined as a third side, And the square of the length of the third side is greater than the square of the length of the first side of the second member.

In one embodiment, the side post of the first sidewall is further projected outward than the fused portion of the first sidewall.

In an embodiment, a portion of the first member corresponding to the side post portion is inclined in a direction protruding outward with respect to a portion corresponding to the fused portion of the first member.

In one embodiment, the first member has one of the second side and the third side for each corner, and the first member has a total of four second sides and a total of four The first member has a total of four fused portions, one for each of the first sidewall to the fourth sidewall, and the second member has a total of four fingers, one for each of the corners of the first member, And the second member has a total of four fused portions, one for each of the first sidewall to the fourth sidewall.

K1 + m2 + m3 + K3 + m4 + m5 + K5 + m6 + m7 + K7 + m8, which is a total length of the four second sides of the first member, the length of the four third sides and the lengths of the four fused portions + m1 is longer than K1 + K2 + K3 + K4 + K5 + K6 + K7 + K8, which is the total length of the four first sides of the second member and the lengths of the four fused portions.

According to the present invention, a square pillar or a rectangular pillar can be maintained as it is in a state in which the receptacle of small particles is accommodated.

That is, since the surface of each of the receiving bags is not convex but held close to the plane in a state in which the contents are accommodated, the consumption of the loading space at the time of merchandise display can be reduced.

In addition, it is possible to ensure the uprightness so that the receiving bag does not collapse, thereby securing the product competitiveness by differentiating the packaging.

Further, the occurrence of the bending of the surface of each of the receiving bags is suppressed, and the printing state of each surface is not damaged.

1 is a perspective view showing the appearance of a receiving bag of the present invention.
Fig. 2 is a cross-sectional view showing a state in which a small particle object is accommodated in a receiving bag and an object is moved using a passage between the first and second members, schematically explaining the present invention. Fig.
3 is a cross-sectional view showing a cross section of the first member in the present invention before the receptacle is received.
4 is a sectional view showing the folded state of the receptacle of the present invention.
Fig. 5 is a cross-sectional view showing a cross section of a receiving bag in a case where the next fused bonded article of the first member and the second member of the present invention is accommodated. Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms defined in consideration of the configuration and operation of the present invention may be changed according to the intention or custom of the user, the operator. Definitions of these terms should be based on the content of this specification.

1 is a perspective view showing the appearance of a receiving bag of the present invention. Fig. 2 is a cross-sectional view showing a state in which a small particle object is accommodated in a receiving bag and an object is moved using a passage between the first and second members, schematically explaining the present invention. Fig. 3 is a cross-sectional view showing a cross section of the first member in the present invention before the receptacle is received. 4 is a sectional view showing the folded state of the receptacle of the present invention. Fig. 5 is a cross-sectional view showing a cross section of a receiving bag in a case where the next fused bonded article of the first member and the second member of the present invention is accommodated. Fig.

1 to 5 together, the construction and operation of the receiving bag of the present invention will be described in detail.

Referring first to FIG. 1, a receiving bag of the present invention includes a first member 100, a second member 200, a fused portion 300, and side posts (1, 2, 3, 4).

The first member 100 forms an outer envelope of the receiving bag, and is an outer packaging material on which letters or pictures indicating the type of advertisement or the receptacle are printed. The first member 100 is made of a material having a tensile strength higher than that of the second member 200 in order to prevent printing easiness and breakage due to external load.

In one embodiment, the first member 100 has a multi-layer structure in which a plurality of material layers are physically or chemically laminated. For example, the outside of the first member 100 exposed to the outside of the receiving bag is a first layer 101 made of polyethylene terephthalate (PET), and the lower surface of the first layer 101 is made of poly The inside of the first member 100 which forms the inside of the receiving bag as a lower surface of the second layer 102 is a polyethylene (PE) material or a low density polyethylene LDPE). ≪ / RTI > The first layer 101, the second layer 102, and the third layer 103 may be physically or chemically bonded to form the first member 100 of a multi-layer structure.

Since the first layer 101 of the first member 100 is a hardest material and has a printed surface, it is easy to print, has good gloss, is exposed to an external force, is durable and has a high tensile strength Respectively. For this purpose, a polyethylene terephthalate material is preferred.

The second layer 102 of the first member 100 is preferably made of a polyethylene (PE) material which is less expensive than the first layer 101 and smaller than the first layer 101 but has an appropriate tensile strength .

The third layer 103 of the first member 100 is preferably made of the same or similar material as that of the second member 200 in order to improve the thermal fusion property with the second member 200. For example, When the two members 200 are formed of a polyethylene (PE) material or a low density polyethylene (LDPE) material, the third layer 103 is also made of a polyethylene (PE) material which is the same or similar material as the second member 200 Or a low-density polyethylene (LDPE) material.

The first layer 101 of the first member 100 is at least 0.02 mm and the second layer 102 of the first member 100 is at least 0.02 mm, Is 0.03 mm or more, and the third layer 103 of the first member 100 is 0.08 mm or more.

It is preferable that the first member 100 has a film shape in which both ends of the first member 100 are exposed before the bonding protrusions 110 are formed. The ends of both sides of the first member 100 are joined together by the action of heat or pressure to form a joining protrusion 110 protruding outward from the receiving bag. When the joint protrusion 110 is formed, the first member 100 has a closed cross-sectional shape, thereby forming a receiving space for the water.

Referring to FIG. 3, when both ends of the side wall of the first member 100 are joined, a joining protrusion 110 is formed. In the first member 100, the side where the bonding protrusion 110 is formed is defined as a first side wall A, and the side wall facing the first side wall A is defined as a third side wall C. [ The first sidewall A and the third sidewall C are connected by the second sidewall B and the fourth sidewall D, respectively. The second sidewall B and the fourth sidewall D are located between the first sidewall A and the third sidewall C, respectively. Accordingly, the first member 100 forms the partition wall in the order of the first sidewall A, the second sidewall B, the third sidewall C, and the fourth sidewall D in this order. The cross section of the first member 100 may be square or rectangular, and the first member 100 may be a square column or a rectangular column when the receptacle is received.

The second member 200 is disposed inside the receiving bag and when the first member 100 is fused to the first member 100 by the fused portion 300, the central pillar 400 surrounding the receptacle is formed.

The second member 200 may be made of a material having a tensile strength lower than that of the outermost layer of the first member 100 because the second member 200 is provided inside the receiving bag. Further, it is enough to secure only the tensile strength to such an extent that the central pillar 400 formed by stacking the contents can be erected, so that it is not necessary to form the multi-layer structure. Accordingly, the second member 200 has a single-layer structure and is preferably formed of a polyethylene (PE) material or a low-density polyethylene (LDPE) material.

In one embodiment, when the thickness of the first member 100 is 0.11 mm or more, the thickness of the second member 200 is preferably 0.03 mm or more.

The fused portion 300 has a fused line 310 and is a portion where the first member 100 and the second member 200 are overlapped with each other in a state in which the water is contained. The fusing line 310 is formed by joining the first member 100 and the second member 200. The fused portion 300 is formed at the central portion of each side wall of the first member 100 with the fused wire 310 as a rim. The width of the fusing line 310 or the thickness of the fusing line 310 is defined as the distance from the edge side end 311 of the fusing line 310 to the center side end 312 of the fusing line 310.

The side posts (1, 2, 3, and 4) are provided around the center posts 400 to support the center posts 400 to prevent the receiving bags from collapsing in the direction of the ground. The central pillar 400 formed on the inner side of the second member 200 primarily receives the load of the water receptacle when receiving the water.

When the receiving bag is filled with water, at least four side posts (1, 2, 3, 4) are formed in the first member 100 of the polygonal section.

3, when the first member 100 is provided without the second member 200, the load applied by the receptacle to the first member 100 is greater than the load applied to the first side wall A Reference numerals FA1 and FB1 denote the second sidewall B and reference numerals FC1 and FC1 denote the third sidewall C and the fourth sidewall D, respectively.

5, when the second member 200 is coupled to the first member 100 by the fused portion 300, some of the loads FA1, FB1, FC1, and FD1 of the receptacle shown in FIG. 3 are tensile force T . The tensile force T in FIG. 5 is determined by a tensile force applied to the first side 191 of the second member 200, a tensile force applied to the fused portion 300 of the first member 100, FB1, and FC1 of the receptacle shown in FIG. 3 are reduced by the generation of the tensile force T, so that the loads FA2, FB2, and FC2 of the receptacle shown in FIG. 5 are at least one of the loads FA1, , FD2.

In Fig. 3, the lateral loads to drop the receptacle bag are FA1, FB1, FC1, and FD1, but in Fig. 5, the lateral loads to collapse the receptacle bag are reduced to FA2, FB2, FC2, and FD2. Therefore, when the first member 100 and the second member 200 are fused by the fused portion 300, the receiving bag keeps upright with respect to the ground without collapsing even if the receptacle is accommodated.

At this time, the tensile force T acting on the second member 200 forms the side posts 1, 2, 3, and 4, and the side posts 1, 2, 3, It can be assisted at the four corners to maintain the upright position of the receiving bag geometrically.

That is, when the second member 200 is not provided as shown in FIG. 3, one receiving column is formed, so that it can be collapsed in any one of four directions. In Fig. 3, the side posts (1, 2, 3, 4) for preventing the bag from falling can not be formed since the second attachment is not fused. When the second member 200 is fused as shown in FIG. 5, a central pillar 400 is formed on the inner side of the second member 200, and four side edges are formed on the outer side of the second member 200, Columns (①, ②, ③, ④) are formed. When the center pillar 400 receives the lateral loads FA2, FB2, FC2 and FD2 and tries to fall in any one of the forward, backward and leftward directions, the side pillars (①, ②, ③, ④) Support the outer side so that the receiving bag does not collapse.

In one embodiment, when the second member 200 is fused to the inside of the first member 100, collapse of the receiving bag is suppressed.

The first reason is that the lateral load applied by the receptacle to the receiving bag is reduced to FA2, FB2, FC2, FD2 from FA1, FB1, FC1, FD1 and the reduced load is distributed to the component of the tensile force T.

The second reason is that the center pillar 400 is formed on the inner side of the second member 200 and the side pillar portions (1, 2, 3, 4) are uniformly formed on the outer side of the central pillar 400 in four directions , And the side post portions (①, ②, ③, ④) support geometrically the force that the center post portion (400) tries to collapse. This can be likened to supporting the periphery of the roadside tree with four struts in order to prevent collapse of the roadside water.

The side posts (1, 2, 3, and 4) are preferably triangular posts due to the geometric shapes of the first member 100 and the second member 200, and the triangular posts have first sides 191, The side 192, and the third side 193 may be partition walls. The first side 191 refers to a portion of the second member 200 extending from one fused portion 300 to the other fused portion 300 on a cross section. The second side 192 refers to a portion of the first member 100 extending from any one fused portion 300 to the edge of the first member 100. The third side 193 refers to a part of the first member 100 extending from the other fused portion 300 to the edge of the first member 100.

Upon receipt of the receptacle, the receptacle and the second member 200 proceed outwardly and thus the first side 191 is expanded outwardly. Since both ends of the first side 191 are welded to the fused portion 300, the inflation force acting on the first side 191 generates the tensile force T of the first side 191.

The length of the first member 100 and the length of the second member 200 in the fused portion 300 are equal to each other so that the distance between the first member 100 and the second member 200 A tensile force corresponding to 1/2 of the tensile force T can be applied to each of the first member 100 and the second member 200 located at the fused portion 300.

On the other hand, the cross-sectional area of the side post portions (1, 2, 3, 4) is much smaller than the cross-sectional area of the center post portion 400. Then, the lateral load or tensile force varies depending on the amount of the water filled in the space.

Therefore, the lateral loads acting on the side pillars (①, ②, ③, ④) are much smaller than the lateral loads acting on the central pillar (400). In addition, the tensile force T acting on the first side 191 when receiving the receptacle is greater than the tensile force (not shown) acting on the second side 192 and the tensile force (not shown) acting on the third side 193 . The effects are as follows.

Assuming that the dimensional relationship of the first member 100 and the second member 200 is different from that of Fig. 5, a tensile force acting on the length m2 of the second side 192 and the length m3 of the third side 193 The second side 192 and the third side 193 may be convexly expanded in an excessive amount. When the second side 192 and the third side 193 are convex, the printed surface outside the receiving bag becomes convexly distorted and the readability of the printed surface is deteriorated. Further, since the overall appearance of the receiving bag is reduced to a shape approximating a square column or a rectangular columnar shape, there is a possibility that the bag becomes deformed into an oval shape. Therefore, it is necessary to approximate the overall appearance of the receiving bag to the shape of a square column or a rectangular column as much as possible.

For this purpose, when the first member 100 and the second member 200 are fused, the fused portion 300 and the side posts may not be in a straight line, but the cross section of the side post may be an acute-angled triangle. It is preferable that the second side 192 and the third side 193 of the first member 100 on the cross section form an acute angle triangle with the first side 191 of the second member 200 as a hypotenuse. 5, the sum of the square of the length m2 of the second side 192 and the square of the length m3 of the third side 193 is preferably larger than the square of the length K2 of the first side 191 .

As a virtual embodiment, when the second member 200 is fused so that one side of the first member 100 of FIG. 3 is kept in a straight line shape, the appearance of the receiving bag becomes convex outward There is no means to prevent this. If the load distribution state is adjusted by biasing the outside of the receiving bag in advance, a means for suppressing the appearance distortion of the receiving bag is provided. That is, it is a method of preventing convexity by making a convex portion only by a certain amount and distributing the load by scattering.

As one embodiment, the present invention allows more tension to act on the fused portion 300 by recessing the fused portion 300 of the first member 100 as shown in Fig. Further, the side column portion adjusts the dimensional relationship so as to form an acute-angled triangle, thereby suppressing the load concentration on the side post portion. Therefore, the receiving bag does not protrude further from the side post portion but protrudes only by a predetermined amount.

In one embodiment, the length K1 of the fused portion 300 corresponding to the length from the other end of the fused portion 300 to the other side end of the fused portion 300 is longer than reference symbol m1 and longer than reference symbol m2. Reference numeral m1 denotes a distance from the one edge of the first member 100 to the fused portion 300. Reference numeral m2 denotes a distance from the other edge of the first member 100 to the fused portion 300.

In one embodiment, the fused portion 300 of the first sidewall A is further recessed inward than the side post portion of the first sidewall A. In one embodiment, the second side 192 and the third side 193 of the side post are shaped to be upwardly inclined toward the outer periphery with respect to the fused portion 300. Therefore, it is preferable that the portion corresponding to the side post portion of the first member 100 be formed with an inclined slant protruding outward with respect to the portion corresponding to the fused portion 300 of the first member 100.

On the other hand, the first member 100 has a second side 192 and a third side 193 for each corner, and the first member 100 has a total of four second sides 192 and a total of four third sides 193 and the first member 100 has a total of four fused portions 300 one for each of the first sidewall A to the fourth sidewall D,

The second member 200 has four first sides 191 in total for each of the corners of the first member 100 and the second member 200 has four first sides 191, And a total of four fused portions 300, one for each.

In one embodiment, the length of four second sides 192 of the first member 100, the length of the four third sides 193, and the length of the four fused portions 300, K1 + m2 m1 + m3 + K3 + m4 + m5 + K5 + m6 + m7 + K7 + m8 + m1 are the lengths of the four first sides 191 of the second member 200 and the lengths of the four fused portions 300 K1 + K2 + K3 + K4 + K5 + K6 + K7 + K8.

4, it is preferable that the receiving bag is completely folded when the receptacle is not accommodated to improve the ease of loading the empty receptacle. The lengths of the first and second sidewalls A and D are preferably equal to each other and the length of the second sidewall B and the fourth sidewall D is equal to the length of the first sidewall A and the third sidewall C C).

That is, on the cross section, the length of the first sidewall A where the splicing projection is located is longer than the sum of one half of the length of the second sidewall B and half of the length of the fourth sidewall D. When the first member 100 is folded, a gap of the above-mentioned? L is generated in the first member 100. [ Therefore, the second sidewall B and the third sidewall C are doubly folded, and the folded portions overlap each other and do not overlap.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, the true scope of the present invention should be determined by the following claims.

A ... first sidewall B ... second sidewall
C ... third side wall D ... fourth side wall
P1, P2, P3, P4 ... edge portion 191 ... first side
192 ... 2nd side 193 ... 3rd side
100 ... first member 101 ... first layer
102 ... second layer 103 ... third layer
110 ... joining projection 200 ... second member
300 ... fused portion 310 ... fused wire
311 ... edge-side end portion of the fusing line 312 ... center-side end portion of the fusing line
400 ... central column part ①, ②, ③, ④ ... side column part

Claims (6)

A first sidewall and a second sidewall facing the first sidewall, wherein the first sidewall and the second sidewall are opposed to each other, A first member including a first side wall and a second side wall;
A second member disposed inside the first member and enclosing the water;
A fused portion formed at a central portion of each of the side walls formed by joining the first member and the second member;
A side post formed at the periphery of the fused portion; Lt; / RTI >
Wherein four side posts are formed in the periphery of a central pillar formed on the inside of the second member when the receptacle is received.
The method according to claim 1,
Wherein a cross-section of the side post portion forms an acute-angled triangle.
The method according to claim 1,
A portion of the second member extending from one fused portion to another fused portion on a cross section is referred to as a first side and a portion of the first member extending from the fused portion to the edge of the first member When a third side is defined as a part of the first member extending from the second side, the other fused portion to the edge of the first member,
Wherein the sum of the square of the length of the second side of the first member and the square of the length of the third side is greater than the square of the length of the first side of the second member.
The method according to claim 1,
And the side post of the first side wall projects further outward than the fused portion of the first side wall.
The method according to claim 1,
Wherein a portion of the first member corresponding to the side post portion is inclined in a direction protruding outward with respect to a portion corresponding to the fused portion of the first member.
The method according to claim 1,
A portion of the second member extending from one fused portion to another fused portion on a cross section is referred to as a first side and a portion of the first member extending from the fused portion to the edge of the first member When a third side is defined as a part of the first member extending from the second side, the other fused portion to the edge of the first member,
Wherein the first member has one of the second side and the third side for each corner,
The first member has a total of four of the second sides and a total of four of the third sides for a total of four corners,
Wherein the first member has a total of four fused portions, one for each of the first sidewall to the fourth sidewall,
Said second member having a total of four said first sides, one for each corner of said first member,
The second member has a total of four fused portions, one for each of the first sidewall to the fourth sidewall,
K1 + m2 + m3 + K3 + m4 + m5 + K5 + m6 + m7 + K7 + m8, which is a total length of the four second sides of the first member, the length of the four third sides and the lengths of the four fused portions + m1 is longer than K1 + K2 + K3 + K4 + K5 + K6 + K7 + K8, which is the total length of the four first sides of the second member and the lengths of the four fused portions. .

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