KR20100005949A - Vinyl bag formed passage - Google Patents

Abstract

PURPOSE: A plastic bag with a flow passage forming part is provided to rapidly transfer the air in a main body of the plastic bag by forming the flow passage forming part on a suction member, and to improve manufacturing efficiency while reducing manufacturing costs. CONSTITUTION: A plastic bag with a flow passage forming part includes a plastic bag main body(700) and a suction member fixed and combined on one side of the plastic bag main body by heat-melting. The suction member comprises a support part(110) combined by the heat melting on an inner side of the plastic bag main body, a hollow protrusion(120) in which a penetration hole is formed into the top and the bottom, and the flow passage forming part(130).

Description

Plastic bag with flow path forming part {VINYL BAG FORMED PASSAGE}

The present invention relates to a plastic bag formed with a flow path forming portion, and in particular, a flow path forming portion for quickly moving air in the plastic bag body by forming a flow path forming portion in the suction member without directly embossing the plastic bag body. It is about a plastic bag.

After putting an object in a plastic bag body, many apparatuses for evacuating the inside of a plastic bag body and evacuating the inside of a plastic bag body were developed.

Due to this device, not only can reduce the volume of the object inside the plastic bag body, but also because the vacuum packaging has the advantage that can be stored for a long time.

1 is a perspective view of a conventional plastic bag, Figure 2 is a cross-sectional view of FIG.

1 and 2, the conventional plastic bag, the zipper 20 is formed in the front, the suction member 30 is provided with a check valve on the top surface 11 of the plastic bag body (10) Is integrally combined.

In addition, the upper surface 11 and / or the lower surface 12 are the outer film 14 and the plurality of embossing protrusions of the outer film 14 for the smooth flow of air during the vacuum operation inside the plastic bag body 10. The inner film 15 on which (13) was formed was bonded.

That is, a flow path of air is formed between the plurality of embossing protrusions 13 formed on the inner film 15, and the air far from the suction member 30 is also provided through the flow path between the embossing protrusions 13. It can be easily moved to the suction member (30).

However, such a conventional plastic bag body 10 should be bonded to the inner film 15, the embossed projection 13 is formed on the upper surface 11 or the lower surface 12, the forming work is complicated, plastic bags There is a disadvantage that the unit cost of the main body increases.

The present invention, without forming the embossing directly on the inner surface of the plastic bag body, by forming a flow path forming portion formed with embossing on the suction member disposed inside the plastic bag body, it is possible to smoothly flow the air present inside the plastic bag body It is an object of the present invention to provide a plastic bag formed with a flow path forming portion.

In order to achieve the above object, the plastic bag formed with the flow path forming part of the present invention includes a plastic bag body; A suction member which is fixedly coupled to one surface of the plastic bag body by heat fusion, wherein the suction member includes: a support part coupled to the inner surface of the plastic bag body by heat fusion; A hollow protrusion formed to protrude upward from the support portion to the outside of the plastic bag body, and a through hole formed up and down; It is formed in the flow path forming portion extending in the horizontal direction from the support portion and the flow path for air flow, characterized in that the air inside the plastic bag body is moved to the through hole through the flow path forming portion.

Embossing is formed on the upper or lower surface of the flow path forming part to form a flow path.

It is formed thin so that the flow path forming portion can be bent.

According to the plastic bag formed with the flow path forming portion of the present invention as described above, since the flow path forming portion is formed in the suction member without directly embossing the plastic bag, the production of the plastic bag is easy, and the cost of the plastic bag It can reduce and smooth the flow of air.

3 is an exploded perspective view of a plastic bag according to an application of the present invention.

As shown in Figure 3, the plastic bag of the present invention, the plastic bag body 700, and the suction member 100.

The plastic bag body 700 has an opening formed at one end thereof, and a zipper part is formed at the opening to open and close the opening.

In this case, the zipper may not be formed in the opening, and may be sealed using heat sealing by heat or a separate sealing means.

The suction member 100 is made of a PE material, it is fixedly coupled to one surface of the plastic bag body 700 by thermal fusion.

The suction member 100 includes a support 110, a hollow protrusion 120, and a flow path forming unit 130.

The support 110 is formed in a flat plate shape with a slight thickness, and is disposed inside the plastic bag body 700.

The upper surface of the support 110 is integrally coupled to the inner surface of the plastic bag body 700 by heat fusion or the like.

The hollow protrusion 120 is formed to protrude on the upper surface of the support portion 110 in the shape of a hollow cylinder, the hollow protrusion 120 is formed to protrude to the outside of the plastic bag body 700, through holes 125 up and down ) Is formed.

The through hole 125 extends to the lower portion of the support part 110 to communicate the lower portion of the support part 110 with the upper portion of the hollow protrusion 120.

The flow path forming part 130 is for forming a flow path for the flow of air, and extends in the horizontal direction from the support part 110.

The flow path forming part 130 extends from the bottom surface of the support part 110.

That is, the flow path forming part 130 is spaced apart from the top surface of the plastic bag body 700 by the thickness of the support part 110.

A plurality of embossing 135 is formed on the upper and / or lower surface of the flow path forming unit 130.

Therefore, a flow path for movement of air is formed between the plurality of embossing 135 to move the air inside the plastic bag body 700 to the through hole 125 through the flow path between the embossing 135. To help.

The flow path forming part 130 may be formed to be thin and bent.

First application example

4 is a perspective view of a suction device in which a plastic bag is integrally coupled according to an application example of the present invention, FIG. 5 is an exploded perspective view of one direction of the suction device in which a plastic bag is integrally coupled according to an application example of the present invention, and FIG. Another direction exploded perspective view of a suction device in which a plastic bag is integrally coupled according to an application example of the invention, FIG. 7 is a cross-sectional view taken along line AA in FIG. 4, and FIG. 8 is a state in which a hose connected to a vacuum pump is inserted in FIG. 7. It is a cross section of.

As shown in Figure 4 to 6, the suction device is integrally coupled to the plastic bag body of the present invention, the plastic bag body 700, the suction member 100, and the cover member 1300.

The plastic bag body 700 has an opening formed at one end thereof, and the opening is opened and closed by a zipper.

As described above, the suction member 100 includes a support 110, a hollow protrusion 120, and a flow path forming unit 130.

By integrally coupling the support 110 to the plastic bag body 700, when the suction member 100 is assembled to the plastic bag body 700, the suction member 100 and the plastic bag body 700 It is possible to increase the vacuum efficiency by minimizing the gap between them.

Inside the hollow protrusion 120, that is, the through hole 125 is equipped with a porous filter made of a material such as a sponge to filter foreign matter.

The cover member 1300 is disposed outside the plastic bag body 700 to be coupled to the suction member 100.

In this application example, the cover member 1300 is assembled by separating the first cover member 1301 and the second cover member 1302.

The cover member 1300 has an empty space formed therein, an insertion hole 1310 into which the hollow protrusion 120 is inserted, and an outlet for communicating the insertion hole 1310 to the outside. A ball 1370 is formed.

In detail, the insertion hole 1310 is formed under the first cover member 1301, and the discharge hole 1370 is formed on the second cover member 1302.

An inner circumferential surface of the insertion hole 1310 is fitted with a hollow gasket cylindrical fitting gasket 1320 in which the hollow protrusion 120 is inserted and contacted.

The fitting gasket 1320 has a diameter smaller than that of the hollow protrusion 120, such that the inner circumferential surface of the fitting gasket 1320 and the outer circumferential surface of the hollow protrusion 120 are in close contact with each other.

The fitting gasket 1320 may be formed to extend to the bottom of the cover member 1300 to better seal between the bottom of the cover member 1300 and the plastic bag body 700.

In addition, as shown in FIG. 3, a sealing groove 127 is formed around the outer circumferential surface of the hollow protrusion 120, and a seal that is seated in the sealing groove 127 around the inner circumferential surface of the fitting gasket 1320. A protrusion 1322 is formed.

The sealing protrusion 1322 may be seated in the sealing groove 127 to further block the flow of air that may flow in and out through the gap between the hollow protrusion 120 and the fitting gasket 1320.

In this case, the sealing protrusion 1322 may be formed around the outer circumferential surface of the hollow protrusion 120, and the sealing groove 127 may be formed around the inner circumferential surface of the fitting gasket 1320.

On the other hand, the check valve 1330 is mounted on the upper portion of the insertion hole 1310 inside the cover member 1300.

The check valve 1330 is opened only when air moves in the direction of the discharge hole 1370 through the insertion hole 1310.

The check valve 1330 has a fixed part 1331 fixedly coupled to the cover member 1300 and a moving part for opening and closing the insertion hole 1310 by having one end coupled to the fixed part 1331 and flowing. 1332).

In addition, the cover member 1300 has a pressing plate 1350 for opening and closing the discharge hole 1370, a spring 1340 for elastically supporting the pressing plate 1350, and is mounted on an upper surface of the pressing plate 1350. Upper gasket 1360 is disposed.

Hereinafter, an operation process of the present invention having the above-described configuration will be described.

The cover member 1300 is disposed on an upper portion of the plastic bag body 700 to which the suction member 100 is integrally coupled.

As the insertion hole 1310 of the cover member 1300 is inserted into the hollow protrusion 120 of the suction member 100, as shown in FIG. 7, the suction member 100 and the cover member 1300 are coupled to each other. do.

In this case, the hollow protrusion 120 is fitted to the fitting gasket 1320 mounted in the insertion hole 1310, because the diameter of the fitting gasket 1320 is slightly smaller than the diameter of the hollow protrusion 120, The suction member 100 and the cover member 1300 may combine the suction member 100 and the cover member 1300 without a separate locking device.

In addition, the sealing protrusion 1322 formed on the inner circumferential surface of the fitting protrusion is seated in the sealing groove 127 formed on the outer circumferential surface of the hollow protrusion 120, thereby forming a gap between the hollow protrusion 120 and the fitting gasket 1320. It can further block air that can flow in and out.

Then, the food is stored in the plastic bag body 700, and the opening of the plastic bag body 700 is sealed or heat-sealed using a zipper means, as shown in Figure 8 the discharge hole ( Insert a hose 1400 connected to a separate vacuum pump (not shown) through 1370.

By inserting the hose 1400, the upper gasket 1360 and the pressing plate 1350 descends while pressing the spring 1340.

Thereafter, when the vacuum pump is operated, the moving part 1332 of the check valve 1330 is raised to communicate the insertion hole 1310 with the inside of the cover member 1300.

Thus, the inside of the plastic bag body 700 is introduced into the cover member 1300 through the through hole 125 and the insertion hole 1310, which is again discharged from the outside through the hose 1400. .

At this time, the air present in the plastic bag body 700 is more easily moved to the through-hole 125 through the flow path formed in the flow path forming portion 130.

In addition, foreign matter that may be introduced from the plastic bag body 700 may be filtered by the porous filter 1230 to prevent the inside of the cover member 1300 and the vacuum pump from moving.

When the vacuum of the plastic bag body 700 is completed, the hose 1400 inserted into the discharge hole 1370 is removed.

Then, the pressing plate 1350 and the upper gasket 1360 close the discharge hole 1370 by the elastic restoring force of the spring 1340 that has been compressed.

In addition, the moving part 1332 of the check valve 1330 is in close contact with the insertion hole 1310 direction due to the difference in air pressure to close the insertion hole 1310.

Therefore, the inside of the plastic bag body 700 can be maintained in a vacuum state, food can be stored for a long time.

When the vacuum in the plastic bag body 700 is to be released, air may be introduced into the plastic bag body 700 by opening the zipper means for sealing the opening of the plastic bag body 700. .

Application example 2

Figure 9 is a perspective view of a plastic bag clip device according to an application example of the present invention, Figure 10 is an exploded perspective view of a plastic bag clip device according to an application example of the present invention, Figure 11 is a plastic bag for an application example of the present invention 12 is an exploded perspective view of another direction of the clip device, FIG. 12 is a perspective view of a state in which a plastic bag clip device according to an application example of the present invention is mounted on a plastic bag, FIG. 13 is a sectional view taken along line BB of FIG. 12 is a cross-sectional view taken along line CC of FIG. 12, FIG. 15 is a cross-sectional view taken along line CC of FIG. 14, and FIG. 16 is a cross-sectional view taken along line CC of FIG. 12.

As shown in Figure 9 to 16, the plastic bag clip device provided with a pump member 500 of the present invention, the suction member 100, the cover member 200, the lower housing 300, The upper housing 400, the pump member 500 and the receiving portion 600 is made up.

As described above, the suction member 100 includes a support 110, a hollow protrusion 120, and a flow path forming unit 130.

The porous filter 126 is disposed in the hollow protrusion 120, that is, the through hole 125, to filter foreign substances introduced from the bottom surface of the support 110.

The suction member 100 is integrally coupled to the plastic bag body 700.

The cover member 200 is disposed on the outside of the plastic bag main body 700 to be combined with the suction member 100 disposed inside and outside the plastic bag main body 700, and is formed in a flat plate shape to form the plastic bag. The adhesive part 210 is in contact with the support part 110 with the main body 700 therebetween, and the fitting protrusion 220 protruding upward from the adhesive part 210.

The fitting protrusion 220 is formed in a hollow shape so that the hollow protrusion 120 is inserted from the bottom.

The cover member 200 is preferably made of a rubber or silicone material.

In this case, a sealing groove 127 is formed around the outer circumferential surface of the hollow protrusion 120, and a sealing protrusion 227 seated in the sealing groove 127 is formed around the inner circumferential surface of the fitting protrusion 220. .

By the sealing protrusion 227 and the sealing groove 127 as described above it is possible to minimize the inflow and outflow of air through the gap between the hollow protrusion 120 and the fitting protrusion 220.

Unlike the present application, it is also possible to form a sealing protrusion 227 in the hollow protrusion 120, and to form a sealing groove 127 in the fitting protrusion 220.

By the combination of the suction member 100 and the cover member 200 as described above, the plastic bag body 700 is the plastic bag body 700 is the suction member 100 as shown in Figure 13 and 16 And pressurized between the cover member 200.

At this time, in order to ensure the coupling of the suction member 100 and the cover member 200, the inner diameter of the fitting protrusion 220 is formed to be the same as or slightly smaller than the diameter of the hollow protrusion 120 desirable.

The lower housing 300 is formed to have a long rod shape and an insertion portion 310 is formed in the longitudinal direction at the top thereof so that the suction member 100 and the cover member 200 are mounted to the insertion portion 310. .

On both sides of the lower housing 300, that is, the side wall is formed, the locking engaging jaw 350 protrudes outward.

The fastening engaging jaw 350 is coupled to the fastening elastic protrusions 450 to be described later to fasten the upper housing 400 and the lower housing 300 to each other.

The upper housing 400 is formed long in a rod shape and is inserted into the inserting portion 310 of the lower housing 300 at the upper portion of the cover member 200 to form a plastic bag body together with the lower housing 300. 700 is press-sealed and a suction hole 415 communicating with the cover member 200 is formed at a lower portion thereof.

Both sides of the upper housing 400, that is, the side portion is formed with a fastening elastic protrusion 450 protruding in the outward direction, the fastening elastic protrusion 450 is hooked to the fastening engaging jaw 350 to the upper housing 400 and the lower housing 300 to be fastened to each other.

In this case, the fastening elastic protrusion 450 and the fastening catching jaw 350 may be formed only at the center portion of the upper housing 400 and the lower housing 300, or may be formed to be long in the longitudinal direction.

The upper housing 400 has an accommodating part 600 accommodating foreign substances introduced through the porous filter 126 disposed in the through hole 125.

In this case, the through hole 125 communicates with the pump member 500 via the accommodating part 600.

The accommodating part 600 may be integrally formed with the upper housing 400 or may be detachably mounted.

In this application example, the accommodating part 600 is detachably mounted to the upper housing 400.

The upper housing 400 is divided into a first chamber 410, a second chamber 420, a third chamber 430, and a fourth chamber 440.

The first chamber 410 and the fourth chamber 440 are located at the center of the upper housing 400, and the third chamber 430 and the fourth chamber 440 are located at the left and right sides, respectively. .

The first chamber 410 and the fourth chamber 440 are arranged in front and rear.

Accordingly, the first chamber 410 and the fourth chamber 440 are adjacent to each other, and the second chamber 420 and the third chamber 430 are the first chamber 410 and the fourth chamber 440, respectively. ) And the second chamber 420 and the third chamber 430 are spaced apart from each other.

The first chamber 410 is located at the center of the upper housing 400, and the suction hole 415 is formed in the lower portion of the first chamber 410.

The fitting protrusion 220 is inserted into the suction hole 415 as shown in FIGS. 13 and 16.

The suction hole 415 has a size smaller than that of the support 110 and larger than the diameter of the hollow protrusion 120, and an upper surface of the support 110 is disposed on the bottom of the upper housing 400. The lower surface of the support 110 is in contact with the inner bottom of the lower housing 300.

As shown in FIGS. 13 and 16, the bottom of the upper housing 400 and the inner bottom of the lower housing 300 are spaced apart from each other by the support 110.

At this time, the bottom surface of the upper housing 400, as shown in Figure 10, 11 and 16, the flow blocking projection 470 is formed protruding, the inner surface of the lower housing 300 is the flow jersey The flow blocking groove 370 into which the protrusion 470 is inserted is formed.

The flow blocking protrusion 470 and the flow blocking groove 370 are formed to be long in the longitudinal direction of the upper housing 400 and the lower housing 300.

In addition, unlike the present application, the flow blocking groove 370 is formed in the upper housing 400, the flow blocking projection 470 may be formed in the lower housing 300.

The flow blocking protrusion 470 and the flow blocking groove 370 bend the plastic bag body 700 to strongly block the inflow and outflow of air, and the inside of the bottom and the lower housing 300 of the upper housing 400. The upper housing 400 is prevented from flowing left and right by the support 110 disposed between the bottom surfaces.

The second chamber 420 communicates with the first chamber 410, and the accommodating part 600 is disposed.

The pump member 500 is slidably mounted in the third chamber 430.

The fourth chamber 440 is formed between the second chamber 420 and the third chamber 430, and serves to communicate the second chamber 420 and the third chamber 430.

In this case, the fourth chamber 440 is equipped with a direction changing member 445 for selectively communicating the second chamber 420 and the third chamber 430.

In detail, the second chamber 420 and the third chamber 430 communicate with the fourth chamber 440, respectively.

The turning member 445 is rotatably mounted to the fourth chamber 440, and a moving hole 446 is formed in the turning member 445.

Therefore, the second chamber 420 and the third chamber 430 are selectively communicated with each other or closed by the rotation of the turning member 445.

On the other hand, the upper housing 400 is provided with a check valve 460 that opens only when the air flows from the suction hole 415 toward the pump member 500 is disposed.

In this application example, the check valve 460 is mounted between the first chamber 410 and the second chamber 420 and between the second chamber 420 and the fourth chamber 440, respectively.

The pump member 500 is slidably mounted to the upper housing 400 so that the air inside the plastic bag body 700 is operated by the pump member 500 and the suction member 100 and the cover member. It is to be discharged to the outside through the pump member 500 through the 200 and the upper housing 400.

The specific structure of the pump member 500 as described above is sufficient if the structure of the general pump member 500, and also the structural surface described in the application Nos. 20-2008-0005043 and 20-2008-0005507 filed by the present applicant Suffice.

In order to fasten the pump member 500 to the upper housing 400, a rotation catching protrusion 540 protrudes from an outer circumferential surface of the pump member 500, and the pump member is formed on the upper housing 400. When rotating the 500, the rotation locking projection 435 is formed to take the rotation locking projection 540 is formed.

Therefore, when the pump member 500 is inserted into the third chamber 430 of the upper housing 400, the rotation catching protrusion 540 is inserted without being caught by the rotation catching jaw 435, but the pump When the pump member 500 is rotated while the member 500 is fully inserted into the third chamber 430, the rotation catching protrusion 540 is caught by the rotation catching jaw 435, so that the pump member 500 is rotated. ) Can be prevented from sliding away from the third chamber (430).

The accommodating part 600 is slidably mounted in the second chamber 420.

Holes communicating with the first chamber 410 and the second chamber 420 are formed at the front of the accommodating part 600, respectively, and an accommodating cover 610 is provided at the rear to open and close the interior. .

Below, it looks at the operation of the present invention made of the above configuration.

The cover member 200 is coupled to the suction member 100 from the outside of the plastic bag body 700 to the plastic bag body 700 to which the suction member 100 is integrally coupled.

In this case, since the hollow protrusion 120 protrudes upward from the suction member 100, and the hollow fitting protrusion 220 into which the hollow protrusion 120 is inserted is formed in the cover member 200, The hollow protrusion 120 is inserted into the fitting protrusion 220.

Thereafter, the fitting protrusion 220 of the cover member 200 to which the suction member 100 and the plastic bag body 700 are fastened is inserted into the suction hole 415 of the upper housing 400.

Then, the lower portion of the suction member 100 is in communication with the first chamber 410 through the through hole 125 and the fitting protrusion 220 formed in the hollow protrusion 120.

At this time, since the support 110 and the adhesive portion 210 of the suction member 100 is larger than the diameter of the suction hole 415, the support 110 and the adhesive portion 210 is the upper housing 400 Protrudingly mounted on the bottom of the.

In this state, when the upper housing 400 is inserted into the insertion part 310 of the lower housing 300, as shown in FIGS. 13 and 16, the bottom and the lower housing 300 of the upper housing 400 are shown. Between the inner bottom of the spaced apart by the height of the support 110 and the bonding portion 210.

If the entire cover member 200 including the adhesive portion 210 is inserted into the suction hole 415, the upper surface of the upper housing 400 protrudes from the support 110 and the upper housing 400. ) Is spaced apart by the height of the support 110 between the bottom of the lower housing and the inner bottom of the lower housing (300).

At this time, the support 110 is located in the center of the upper housing 400, the bottom of the upper housing 400 and the inner bottom of the lower housing 300 is spaced apart, the upper housing 400 ) May be swayed left and right about the support 110.

However, as shown in FIG. 16, the flow preventing protrusion is formed on the bottom of the upper housing 400, and the flow blocking protrusion 470 is inserted into the inner bottom of the lower housing 300. The groove 370 is formed, and the flow blocking protrusion 470 is in contact with the inner bottom of the lower housing 300 to prevent the upper housing 400 from shaking from side to side.

In addition, since the plastic bag body 700 is inserted and bent together when the flow blocking protrusion 470 is inserted into the flow blocking groove 370, the outside air is opened through the opening of the plastic bag body 700. Can further block the flow into.

At this time, the opening of the plastic bag body 700 is arranged in a direction adjacent to the flow blocking projection 470 and the flow blocking groove 370.

16, the fastening elastic protrusions 450 are formed at both sides of the upper housing 400, and the fastening catching jaw 350 is formed at both sides of the lower housing 300. Is there, the fastening elastic protrusion 450 is caught on the fastening engaging jaw 350 is to combine the upper housing 400 and the lower housing 300.

At this time, the cover member 200 is made of a rubber material bar, if the upper housing 400 and the lower housing 300 is strongly fastened to each other, between the plastic bag body 700 and the cover member 200 By minimizing the gaps present, it is possible to block the inflow of external air.

Therefore, the opening of the plastic bag body 700 is sealed by the upper housing 400 and the lower housing 300.

In addition, since the flow path forming portion 130 is formed to be thin and long enough to bend, it is bent as shown in FIG. 16 and disposed between the side of the upper housing and the side of the lower housing.

When the plastic bag body 700 is disposed in the clip device as described above, the pump member 500 is reciprocated to operate as shown in FIGS. 14 and 15 to vacuum the inside of the plastic bag body 700.

As the pump member 500 reciprocates, the air inside the plastic bag body 700 passes through the through hole 125, the first chamber 410, the second chamber 420, and the fourth chamber 440. Through the flow into the third chamber 430, which is again discharged to the outside through the pump member 500.

In this case, the direction changing member 445 mounted to the fourth chamber 440 rotates to allow the movable hole 446 to communicate with the second chamber 420 and the third chamber 430.

Air existing in the plastic bag body 700 may be easily moved to the through hole 125 through the flow path forming part 130 forming a flow path by the embossing 135.

The pump member 500 has a first hole 510 is formed in the front, the second hole 530 is formed in the rear, the first hole 510 is opened and closed by a rubber ring 520. .

The air introduced into the third chamber 430 is introduced into the pump member 500 through the first hole 510, which is again the second hole 530 when the pump member 500 moves backward. It is discharged to outside through).

At this time, the check valve 460 mounted between the first chamber 410 and the second chamber 420 and between the second chamber 420 and the fourth chamber 440 is the pump member 500. Is opened when it is reversed, and closed when the pump member 500 is advanced, thereby inducing air of the plastic bag body 700 to gradually move toward the third chamber 430.

When operating the pump member 500, foreign matters, etc. in the interior of the plastic bag body 700 may be introduced through the through-hole 125, such foreign matters first by the porous filter 126 Firstly filtered, foreign matter passing through the porous filter 126 is to be stored in the accommodating part 600 again.

Since the accommodating part 600 is detachably mounted to the second chamber 420 or mounted to be opened and closed, the user can easily remove foreign substances stored in the accommodating part 600.

When the pumping operation of the pump member 500 is completed, the pump member 500 is inserted into the third chamber 430 and rotated.

Then, as shown in FIG. 13, the rotation catching protrusion 540 is caught by the rotation catching jaw 435 to fix the pump member 500 to the upper housing 400.

In addition, the second chamber 420 and the fourth chamber 440 are not communicated with each other by rotating the direction changing member 445 rotatably mounted in the fourth chamber 440 so that the outside air is vinyl. It blocks the flow into the envelope body 700.

In addition, by the check valve 460 which is opened only when air moves from the through hole 125 in the direction of the pump member 500 and is closed in the opposite direction, the outside air is sealed in the plastic bag body 700. Blocks the inflow inside.

The plastic bag formed with the flow path forming portion of the present invention is not limited to the above-described application examples, and may be variously modified and implemented within the range in which the technical idea of the present invention is permitted.

1 is a perspective view of a conventional plastic bag,

2 is a cross-sectional view of FIG.

3 is a perspective cutaway view of a plastic bag according to an application of the present invention,

4 is a perspective view of a suction device in which a plastic bag is integrally coupled according to an application example of the present invention;

5 is an exploded perspective view of one direction of a suction device in which a plastic bag is integrally coupled according to an application example of the present invention;

6 is an exploded perspective view of another direction of the suction device in which the plastic bag is integrally coupled according to an application example of the present invention;

7 is a cross-sectional view taken along line A-A in FIG.

8 is a cross-sectional view of a state in which a hose connected to the vacuum pump is inserted in FIG.

9 is a perspective view of a plastic bag clip device according to an application example of the present invention,

10 is an exploded perspective view in one direction of the clip device for a plastic bag according to an application example of the present invention,

11 is an exploded perspective view of another direction of the clip device for a plastic bag according to an application example of the present invention;

12 is a perspective view of a state in which the plastic bag clip device according to the application of the present invention mounted on a plastic bag,

FIG. 13 is a cross-sectional view taken along line B-B of FIG. 12;

14 is a cross-sectional view taken along the line C-C of FIG.

FIG. 15 is a cross-sectional view of a state in which the pump member is pulled from FIG. 14;

16 is a cross-sectional view taken along line D-D of FIG. 13;

Claims (3)

A plastic bag body; It is made of a suction member fixed by bonding to one surface of the plastic bag body, The suction member, A support part coupled to the inner surface of the plastic bag body by heat fusion; A hollow protrusion formed to protrude upward from the support portion to the outside of the plastic bag body, and a through hole formed up and down; Is formed in the flow path forming portion extending in the horizontal direction from the support portion and the flow path for the flow of air, Air inside the plastic bag body is a plastic bag with a flow path forming portion, characterized in that to move through the flow path forming portion to the through hole. The method of claim 1, The plastic bag with a flow path forming portion, characterized in that the embossing is formed on the top or bottom surface of the flow path forming portion to form a flow path. The method according to claim 1 or 2, Plastic bag formed with a flow path forming portion, characterized in that formed thin so that the flow path forming portion can be bent.

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