KR101875518B1 - Easily opened plastic bag - Google Patents

Abstract

The present invention relates to a plastic bag easy to open. According to the present invention, the plastic bag comprises: a plastic film forming a storage space; a port at least partially inserted into the plastic film to be welded to the plastic film, and including a moving passage for injecting a material into the storage space or for discharging the material from the storage space; and a cap coupled to the port to act as a stopper for the port. The cap includes: a cover part coupled to the cap; a handle coupled to the other end cover part and extended in one direction; and a connection part connecting between the handle and the cover part, and ruptured by lifting the handle. Accordingly, the connection part between the cap and the handle is formed to have an asymmetric thickness in accordance with the direction to be easily ruptured when the handle is lifted such that the cap is able to be easily opened.

Description

[0001] EASILY OPENED PLASTIC BAG [0002]

The present invention relates to a plastic bag. More particularly, the present invention relates to a cap structure of a plastic bag which can easily open a cap portion for sealing a plastic bag by using a handle.

BACKGROUND ART In the medical field, a plastic bag in the form of a bottle or a film bag is used for the purpose of holding and storing an injection solution such as blood or liquid. The plastic bag is usually made of bag-shaped bag by folding or fusing a synthetic resin film. One side of the bag is opened to one or several ports depending on the application, that is, The pipe is installed and used.

If the fusion site of the bag and the port used for medical use is structurally weak, a failure such as leakage of the drug may occur at this portion. In order to prevent this problem, the Registration Practical Utility Model No. 20-0444613 discloses an injection molding machine in which a take-out tube and an injection tube are injection-molded into one body, and a cap for blocking the take-out tube is provided so that residual medicine inside the bag does not flow out Disclosed is a plastic bag having a sealing member.

However, when a sealing member such as the one disclosed in Registration Practical Utility Model No. 20-0444613 is used, the structure of the plastic bag is complicated due to the separate opening and closing storage means for closing the retrieval pipe, so that the structure of the plastic bag is complicated. There is a problem that it is not easy to open the plastic bag in an emergency or when the user's operation is not easy.

Korean Registered Utility Model No. 20-0444613

Therefore, according to the present invention, a connection part between a cap for sealing a plastic bag and a handle connected to the plastic bag is formed to have an asymmetrical thickness along the direction, so that the cap can be easily broken It is an object of the present invention to provide a plastic bag having a possible structure.

The object is achieved by a plastic film forming a storage space; A port at least partially inserted into the plastic film and fused to the plastic film, the port including a passage for injecting or discharging the material into or from the storage space; And a cap coupled to the port and serving as a cap for the port.

In one embodiment, the cap includes: a lid coupled to the port; A handle coupled to the lid and extending in one direction; And a connection part connecting the handle and the lid part and configured to be broken by raising the handle.

In one embodiment, the cross-section of the connecting portion may include portions having different thicknesses from each other.

In one embodiment, the connecting portion includes a first portion and a second portion relatively closer to the portion where the handle is lifted relative to the first portion, the thickness of the first portion being greater than the thickness of the second portion As shown in FIG.

In one embodiment, the connecting portion further comprises a recessed region formed linearly in the first portion to facilitate fracturing of the first portion. The recessed area may extend parallel to the direction in which the handle is lifted, or may extend perpendicular to the direction in which the handle is lifted.

In one embodiment, the recessed areas may comprise a plurality of areas spaced from one another.

In the plastic bag according to an embodiment, by breaking the connecting portion, the moving passage of the port can communicate with the outside through the cap.

In one embodiment, the cap includes one or more insertion protrusions extending from the lid. The port may include a body including an insertion recess for engaging with the cap by fitting the insertion protrusion.

In one embodiment, the cap may further include a rubber stopper which is closely inserted into the inside of the cover to prevent entry and exit of the material.

According to the plastic bag according to the present invention, a handle capable of lifting up a force is provided at a cap portion for sealing the plastic bag, and a connection portion between the cap and the handle is provided with an asymmetrical When the handle is lifted, the connecting portion is easily broken at a relatively thin portion, and the plastic bag is opened to the outside.

According to the plastic bag according to the present invention, since the material is stored in a sealed state and then the handle is lifted with one hand, the plastic bag can be easily opened and discharged through a simple operation. Therefore, It can be usefully used as a container for a substance requiring storage.

1A is a perspective view of a plastic bag according to an embodiment of the present invention.
FIG. 1B is a side view of a port portion inserted into a plastic film in the plastic bag shown in FIG. 1A; FIG.
1C is a cross-sectional view of a plastic bag along a line segment connecting A-A 'in FIG. 1B.
1D is a cross-sectional view of a plastic bag along a line segment connecting B-B 'of FIG. 1B.
2A is a plan perspective view of a cap of a plastic bag according to one embodiment of the present invention.
FIG. 2B is a rear perspective view of the cap shown in FIG. 2A. FIG.
Figure 2C is a rear view of the cap shown in Figures 2A and 2B.
FIG. 2D is a side view of the cap shown in FIGS. 2A-2C.
2E is a cross-sectional view of the cap along a line segment connecting C-C 'in FIG. 2D.
FIG. 2F is a side view of a cut surface of the cap along a line segment connecting D-D 'in FIG. 2E.
FIG. 2G is an enlarged view of the area E shown in FIG. 2E.
3 is a side view of a cutting face of a cap of a plastic bag according to another embodiment of the present invention.
4A is a cross-sectional view of a cap of a plastic bag according to another embodiment of the present invention.
Fig. 4B is an enlarged view of the area F shown in Fig. 4A.
5A is a perspective view of a port of a plastic bag according to an embodiment of the present invention.
Figure 5B is a side view of the port shown in Figure 5A.
5C is a cross-sectional view of a port along a line segment connecting G-G 'in FIG. 5B.
5D is a cross-sectional view of a port along a line segment connecting H-H 'in FIG. 5B.

Hereinafter, a plastic bag according to the present invention will be described in detail with reference to the accompanying drawings.

Where reference in the specification to "above " another part, it may be directly on the other part or be accompanied by another part therebetween. In contrast, when a section is referred to as being "directly above" another section, no other section is involved.

The terms first, second and third, etc. are used herein to describe various portions, components, regions, layers and / or sections, but are not limited thereto. These terms are only used to distinguish any moiety, element, region, layer or section from another moiety, moiety, region, layer or section. Thus, a first portion, component, region, layer or section described below may be referred to as a second portion, component, region, layer or section without departing from the scope of the present invention.

It is to be understood that the technical terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms as used herein include plural forms as long as the phrases do not expressly express the opposite meaning thereto. Means that a particular feature, region, integer, step, operation, element and / or component is specified and that the presence or absence of other features, regions, integers, steps, operations, elements, and / It does not exclude addition.

The term " below ", "above ", and the like, which denote relative space in this specification, can be used to more easily describe the relationship to other parts of a part shown in the drawings. These terms are intended to include other meanings or acts of the apparatus in use, as well as intended meanings in the drawings. For example, when inverting a device in the figures, certain parts that are described as being "below" other parts are described as being "above " other parts. Thus, an exemplary term "below" includes both up and down directions. The device can be rotated by 90 degrees or rotated at different angles, and terms indicating relative space are interpreted accordingly.

1A is a perspective view of a plastic bag according to an embodiment of the present invention. 1A, a plastic bag according to an embodiment of the present invention includes a plastic film 10, a port 20 inserted therein and forming a moving path for injecting or discharging a substance, a port 20 And a cap 30 serving as a cap.

The plastic film 10 forms a storage space for the substance. For example, the plastic film 10 may have a space therein and may have a width of about 10 to 15 cm and a length of about 15 to 20 cm. The material accommodated in the storage space of the plastic film 10 may be a material having a medical purpose such as blood, an aqueous solution or a sterilizing liquid, but is not limited thereto.

In one embodiment, the plastic film 10 includes a pair of films 100 that are fused together with a space therebetween. At this time, one end of the port 20 is inserted between the pair of films 100, and the outer space of the port 20 is fused with the film 100, so that the storage space between the films 100 can be sealed. The thickness of each film 100 may range from 0.1 to 1 mm, but is not limited thereto.

The plastic film 10 may be made of a synthetic resin material such as polyolefin, polyamide, or polyester. Preferably, the plastic film 10 may be formed by stacking a plurality of layers of polypropylene and / or polypropylene copolymer.

The port 20 includes a body 200 connected to the cap 30 serving as a stopper and at least one member having a tapered shape extending from the body 200 and being easily inserted into the plastic film 10, Tapered portions 210 and 220, respectively. At least a portion of the tapered portions 210 and 220 are inserted into the storage space of the plastic film 10 so that material can be injected into the storage space through the passage in the port 20 or the material stored in the storage space can be discharged . The port 20 having such a shape can be formed by injection molding of polypropylene or the like, but is not limited thereto.

The cap 30 is coupled to the body 200 of the port 20 to serve as a stopper for the passage in the port 20. A handle 300 having a shape elongated in one direction is formed on the cap 30 so that a user can lift it by force. The connecting portion between the cap 30 and the handle 300 is broken when the handle 300 is lifted so that the cap 30 is opened and the moving passage in the port 20 is communicated with the outside.

Fig. 1B is a side view of the port portion inserted into the plastic film in the plastic bag shown in Fig. 1A, Fig. 1C is a sectional view of the plastic bag along a line segment connecting A-A ' B 'of the plastic bag according to the line segment connecting.

1B to 1D, the tapered portions 220 located at the tapered portions 210 and 220 or at least the end portions of the port 20 have a longer length in one direction than in the other direction, It has a flat shape and is therefore easily inserted into a plastic film. Although the cross section of the tapered portion 220 herein has a shape similar to an ellipse, it is an exemplary one, and a cross section of the tapered portion may be formed in a rectangular or other different shape.

The cap 30 includes a cover 320 coupled to the body 200 of the port 20 and serving as a stopper and a handle 300 coupled to the cover 320 and configured to be user- . The lid 320 of the cap 30 and the body 200 of the port 20 may be engaged and joined together by one or more of the inlet grooves. Like the port 20, the cap 30 may be formed by injection molding of polypropylene or the like, but is not limited thereto.

1C and 1D, the lid 320 and the handle 300 are coupled by a ring-shaped connection, which is asymmetrical in thickness along the direction of the handle 300, It has a structure that is easily broken. The configuration of the connection portion will be described later in detail.

In one embodiment, the cap 30 further includes a rubber stopper 310 that is inserted into the cover portion 320. The rubber stopper 310 is in close contact with the inner wall surface of the lid 320 to prevent unintentional entry and exit. For example, the rubber stopper 310 may be made of isoprene rubber, halogen butyl rubber, thermoplastic elastomer, or the like, but is not limited thereto.

2A is a plan perspective view of a cap of a plastic bag according to an embodiment of the present invention, FIG. 2B is a rear perspective view of the cap shown in FIG. 2A, FIG. 2C is a rear view of the cap shown in FIGS. to be. Figure 2d is a side view of the cap shown in Figures 2a-2c.

Referring to Figs. 2A to 2D, the cap 30 has insertion protrusions 322 and 323 extending from the cover portion 320. Fig. Further, the insertion projection 322 has an opening 321 for communicating with the movement passage of the port. When the lid part 320 of the cap 30 and the connection part of the handle 300 are broken, the lid part 320 is partly opened so that the material can be injected into the port through the opening part 321, have. For example, a cannula or the like may be inserted into the open lid 320 and the opening 321.

The insertion protrusion 322 is a portion for insertion into the body of the port and has a relatively small diameter as compared with the lid portion 320. The outer wall of the insertion protruding portion 322 is configured to have at least one concavo-convex structure so that it is not easily separated when fitted into the body of the port or fitted by pressure. The insertion protrusions 323 are formed by protruding from a plurality of positions spaced from each other so as to prevent the insertion protrusions 322 from being separated from the insertion protrusions 322 while being inserted into the body of the port.

In one embodiment, the cap 30 further includes one or more insertion slots 324 formed in the interior of the insertion protrusion 322. The insertion groove 324 is a portion to which the insertion protrusion formed in the body of the port is inserted and fixed. The insertion protrusion 322 and 323 of the cap 320 are inserted into the insertion recess of the body of the port, By inserting the insertion protrusion into the insertion groove 324 of the cap 320, a firm coupling can be achieved.

FIG. 2E is a cross-sectional view of a cap along a line segment connecting C-C 'of FIG. 2D, and FIG. 2F is a side view of a cut surface of the cap along a line segment connecting D-D' of FIG. 2E.

2E and 2F, the lid 320 of the cap and the handle 300 are connected to each other by a circular connection portion 305 extending over a line segment connecting D-D 'of FIG. 2E. At this time, as shown in FIG. 2F, the connecting portion 305 has an asymmetrical shape in which a thickness t1 of one portion is smaller than a thickness t2 of another portion. The portion having a relatively small thickness t1 (also referred to as a first portion) is smaller than the portion having a relatively large thickness t2 (or also referred to as a second portion) Lt; / RTI >

2E, if the handle 300 has a shape extending from the center of the cap 30 to the bottom, the user will hold the handle 300 and lift the handle 300. The thickness t1 of the first portion at the upper end of the connecting portion 305 located relatively far from the lower end of the handle 300 is made thinner than the other portion so that when the handle 300 is lifted, The first portion can be easily broken so that the cover portion 320 can be opened. Depending on the shape of the handle 300, the arrangement of the relatively thin portion in the connection 305 may be different from that shown in the figure.

FIG. 2G is an enlarged view of the area E shown in FIG. 2E. Referring to FIG. 2G, the minimum distance between the opening 321 inside the cap 30 and the connecting portion 305 in the first portion where the thickness of the connecting portion 305 is relatively thin is about 0.17 mm or less. On the other hand, the minimum distance between the opening portion 321 and the connecting portion 305 inside the cap 30 at the other portion is 0.22 mm or more and the connecting portion 305 is broken at the first portion relative to the other portion, It is easy to open.

3 is a side view of a cutting face of a cap of a plastic bag according to another embodiment of the present invention. 3, in order to further facilitate the opening of the cap 30, a connecting portion 305 between the cover portion 320 and the handle 300 is provided with a line extending in the longitudinal direction to a relatively thin first portion. Shaped recessed region 3050 can be formed. Here, the vertical direction refers to a direction perpendicular to the surface of the lid 320 of the cap 30, that is, a direction in which the handle 300 is lifted. Although only one recessed region 3050 is shown in FIG. 3, in another embodiment, the recessed regions 3050 may be formed in a plurality of spaced apart portions along the outer circumference of the connection portion 305.

4A is a cross-sectional view of a cap of a plastic bag according to another embodiment of the present invention, and Fig. 4B is an enlarged view of a region F shown in Fig. 4A.

4A and 4B, in order to further facilitate the opening of the cap 30, the connecting portion 305 between the cover portion 320 and the handle 300 is extended in the transversely to the relatively thin first portion Shaped depression area 3051 can be formed. Here, the horizontal direction refers to a direction parallel to the surface of the lid portion 320 of the cap 30, that is, a direction perpendicular to the direction in which the handle 300 is lifted. The first part of the connection part 305 has a concave-convex structure by forming the recessed area 3051 in the shape of a transverse line, and when the handle 300 is lifted, the concave and convex structures strike each other, have. One or more recessed regions 3051 in the form of a horizontal line may be formed.

FIG. 5A is a perspective view of a port of a plastic bag according to an embodiment of the present invention, FIG. 5B is a side view of the port shown in FIG. 5A, and FIG. 5C is a sectional view of a port along a line segment connecting G- And FIG. 5D is a cross-sectional view of a port along a line segment connecting H-H 'in FIG. 5B.

5B is a view of the port shown in FIG. 5A in the direction of the body 200 of the port. The body 200 of the port has at least one insertion protrusion 203. The insertion protrusion 203 is a portion to be inserted and fixed in the insertion groove 324 of the cap 30 described above with reference to FIG. The insertion protrusions 322 and 323 of the cap 30 are inserted into and fixed to the insertion recess of the body 200 except for the insertion protrusion 203 so that the cap 30 and the port The coupling between the bodies 200 is achieved.

The passage through the inside of the body 200 and the interior of the tapered portions 210 and 220 together forms a passage for the passage of the substance. Since the end faces of the tapered portions 210 and 220 are longer than the lengths of the other directional lengths in one direction, the end portions of the tapered portions 210 and 220 have a flat width, While the widths in the other one direction shown in Fig. 5D are equal or increased. Through the tapered portions 210 and 220 having such a shape, the material can be easily injected into the storage space of the plastic film or the material stored in the storage space can be discharged.

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

10: plastic film 20: port
200: body 210, 220: tapered portion
30: cap 300: handle
310: rubber plug 320: lid
305: connection portion 3050, 3051:

Claims (10)

A plastic film forming a storage space;
A port at least partially inserted into the plastic film and fused to the plastic film, the port including a passage for injecting or discharging material into or from the storage space; And
A cap coupled to the port and serving as a cap for the port,
The cap
A cover coupled to the port;
A handle coupled to the lid and extending in one direction; And
And a connecting portion connected between the handle and the lid portion and configured to be broken by raising the handle,
Wherein a cross section of the connecting portion is an elliptical shape including portions having different thicknesses. delete The method according to claim 1,
The connecting portion includes a first portion and a second portion relatively closer to the portion where the handle is lifted relative to the first portion,
Wherein a thickness of the first portion is smaller than a thickness of the second portion. The method of claim 3,
Wherein the connecting portion further comprises a recessed region formed linearly in the first portion to facilitate fracturing of the first portion. 5. The method of claim 4,
And the depressed region extends parallel to a direction in which the handle is lifted. 5. The method of claim 4,
Wherein the recessed portion extends perpendicularly to a direction in which the handle is lifted. The method according to claim 5 or 6,
Wherein the recessed area comprises a plurality of areas spaced apart from one another. The method according to claim 1,
And the moving passage of the port communicates with the outside through the cap by breaking the connecting portion. The method according to claim 1,
The cap including at least one insertion protrusion extending from the lid,
Wherein the port includes a body including an insertion recess for engaging with the cap by fitting the insertion protrusion. The method according to claim 1,
Wherein the cap further comprises a rubber stopper which is closely inserted into the inside of the cover to prevent entry and exit of the material.

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