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WO2010090483A2 - Sac en vinyle muni d'un clapet de non-retour pliable attaché - Google Patents

Sac en vinyle muni d'un clapet de non-retour pliable attaché Download PDF

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Publication number
WO2010090483A2
WO2010090483A2 PCT/KR2010/000746 KR2010000746W WO2010090483A2 WO 2010090483 A2 WO2010090483 A2 WO 2010090483A2 KR 2010000746 W KR2010000746 W KR 2010000746W WO 2010090483 A2 WO2010090483 A2 WO 2010090483A2
Authority
WO
WIPO (PCT)
Prior art keywords
opening
discharge hole
plastic bag
hole
closing member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2010/000746
Other languages
English (en)
Korean (ko)
Other versions
WO2010090483A3 (fr
Inventor
안창남
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2010090483A2 publication Critical patent/WO2010090483A2/fr
Publication of WO2010090483A3 publication Critical patent/WO2010090483A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/14—Valve bags, i.e. with valves for filling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • B65D81/2023—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum in a flexible container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • B65B31/046—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles co-operating, or being combined, with a device for opening or closing the container or wrapper
    • B65B31/047—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles co-operating, or being combined, with a device for opening or closing the container or wrapper the nozzles co-operating with a check valve in the opening of the container or wrapper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/01—Ventilation or drainage of bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas

Definitions

  • the present invention relates to a plastic bag equipped with a check valve, and in particular, to put food and the like inside the discharge of air inside the plastic bag through the check valve to the outside to seal the inside of the plastic bag in a vacuum state to be stored safely It relates to a plastic bag equipped with a bending check valve.
  • FIG. 1 is a perspective view of a plastic bag equipped with a conventional check valve
  • Figure 2 is a cross-sectional view of the main portion of the check valve is mounted in Figure 1
  • Figure 3 is a check valve is pressed in Figure 2 to close the through hole of the plastic bag 15 is a cross-sectional view of one state
  • FIG. 15 is a flowchart illustrating a method of sealing a plastic bag equipped with a conventional check valve shown in FIGS. 1 to 3.
  • the plastic bag is equipped with a conventional check valve, it consists of a plastic bag 10 and the check valve 20.
  • the through hole 16 is formed on the top surface of the plastic bag 10, and the check valve 20 is coupled to the top of the through hole 16 by the adhesive sheet 28 on the top surface of the plastic bag 10.
  • the check valve 20 has a dome-shaped protrusion 30 formed therein, and an inner center portion of the protrusion 30 is equipped with a through-hole closed adhesive member 26 for closing the through-hole 16.
  • a plurality of discharge holes 24 are formed around the protrusion 30.
  • the air inside the plastic bag 10 moves through the through hole 16 to the inside of the protrusion 30, which is discharged to the outside through the discharge hole 24.
  • the conventional check valve 20 can be used only once because it presses the plastic bag 10 by plastic deformation of the protrusion part 30 using a press 84 or the like as shown in FIG. 15. .
  • the protrusions 30 may not be deformed back to FIG. 2 from plastic deformation.
  • the liquid if the liquid is contained in the plastic bag 10, the liquid penetrates between the lower surface of the through-opening closure member 26 and the upper surface of the plastic bag 10, and the through-opening closure adhesive member 26 and The adhesion efficiency of the adhesive for bonding the upper surface of the plastic bag 10 is lowered.
  • the through-opening closing member 26 may be separated from the top surface of the plastic bag 10, thereby causing a problem that external air flows into the plastic bag 10.
  • the discharge hole 24 and the through hole 16 are the through hole closure adhesive member 26. Since only the mutually blocked by the adhesive surface between the upper surface of the) and the upper surface of the plastic bag 10, the sealing efficiency of the plastic bag 10 is not excellent.
  • the conventional check valve 20 illustrated in FIGS. 1 to 3 and 15 may only pass through the closed closed adhesive member 26 by the press 84 or the like after the vacuum of the inside of the plastic bag 10 is completed. Since the ball 16 is closed, when working in the open space, the outside air passes through the through-hole 16 through the discharge hole 24 before the pressurization work by press, etc. 10) there is a problem that can be introduced into.
  • the present invention can be used many times by closing the through-holes of the plastic bag is not deformed and the elastic deformation of the check valve, double sealing the plastic bag can increase the sealing efficiency of the plastic bag, vacuum operation inside the plastic bag
  • the purpose of this is to provide a plastic bag equipped with a bending type check valve that can be made at the same time the closing operation of the through-holes.
  • Plastic bag is equipped with a bending check valve of the present invention in order to achieve the object, the plastic bag is formed with a through-hole on one surface; A check valve coupled to one surface of the plastic bag to open and close the through hole, wherein the check valve is attached to one surface of the plastic bag and protrudes convexly in the opposite direction of the plastic bag to elastically deform.
  • the pressure bending portion is bent downward in the direction of the opening and closing member by the external force to fix the opening and closing member to one surface of the plastic bag, the downward bending
  • the pressure bending portion is bent upward in the opposite direction of the opening and closing member by the external force is characterized in that the elastic deformation in the original state.
  • the first discharge hole is in close contact with the opening and closing member when the pressure bending portion is bent downward.
  • the opening and closing member is formed with a second discharge hole for communicating the through hole and the first discharge hole, the second discharge hole and the through hole is arranged to be eccentric with each other in the up and down direction, the second discharge hole than the first discharge hole Small and disposed inside the first discharge hole, the first discharge hole and the through hole are spaced apart from each other without generating an intersection, and the pressure bending portion is bent downward so that the outer peripheral portion of the first discharge hole is discharged from the second discharge hole.
  • the circumference of the ball is pressed to block the second discharge hole and the through hole, and the first discharge hole is pressurized by the opening / closing member to be closed.
  • a bending groove is formed around the first discharge hole in the pressure bending part, and an upper part of the pressure bending part in which the first discharge hole is formed is bent downward based on the bending groove to press the opening member.
  • the second discharge hole is formed by cutting the opening and closing member so that the cutting surfaces are in contact with each other in the free state, the second discharge hole, the cutting surface of the opening and closing member is closed in contact with each other in the free state, the external force The cutting surface of the opening and closing member is bent and opened.
  • the second discharge hole has a '+' shape.
  • the opening and closing member is formed in a dome shape, the second discharge hole is formed in the center, and a lower surface of the outer circumferential portion contacts one surface of the plastic bag.
  • the opening and closing member is disposed to be movable in the vertical direction between one surface of the plastic bag and the cover member, the inner surface of the pressing bent portion is formed with embossing.
  • a bending groove is formed around the first discharge hole in the pressure bending part, and an upper part of the pressure bending part in which the first discharge hole is formed is bent downward based on the bending groove to press the opening member.
  • the cover member is elastically deformed to press the opening and closing member to close the through-hole of the plastic bag, the user directly without a separate press device as in the prior art Locking or releasing by hand allows simple use of the check valve multiple times.
  • the opening and closing member can be prevented from flowing.
  • the cut surfaces of the second discharge hole are cut to contact each other in a free state, when the opening and closing member is in close contact with the plastic bag to close the opening and closing member, the inflow of air through the second discharge hole can be further blocked. .
  • the opening and closing member is formed in a dome shape, such as a rubber adsorption plate can be in close contact with one surface of the plastic bag to close the through hole more strongly, while the vacuum operation inside the plastic bag can be made at the same time the closing operation of the through hole can be made have.
  • FIG. 1 is a perspective view of a plastic bag equipped with a conventional check valve
  • Figure 2 is a cross-sectional view of the main portion of the check valve is mounted in Figure 1,
  • FIG. 3 is a cross-sectional view of a state in which the check valve is pressed in FIG. 2 to close the through hole of the plastic bag;
  • FIG. 4 is a perspective view of a plastic bag equipped with a check valve according to the first embodiment of the present invention
  • FIG. 5 is a plan view of a plastic bag equipped with a check valve according to a first embodiment of the present invention
  • FIG. 6 is an exploded perspective view of a plastic bag equipped with a check valve according to a first embodiment of the present invention
  • FIG. 7 is a cross-sectional view taken along line A-A of FIG. 4;
  • FIG. 8 is a cross-sectional view of a state in which a vacuum operation is performed by connecting a socket connected to a vacuum pump in FIG. 7;
  • FIG. 10 is a cross-sectional view of the check valve is locked by pressing the cover member in FIG.
  • FIG. 11 is a cross-sectional view according to a second embodiment of the present invention.
  • FIG. 12 is a cross-sectional view of a state in which a vacuum operation is performed by connecting a socket connected to a vacuum pump in FIG.
  • Figure 13 is a cross-sectional view of the socket is removed after completion of the vacuum in Figure 12,
  • FIG. 14 is a cross-sectional view of a state in which the check valve is locked by pressing the cover member in FIG. 13;
  • FIG. 4 is a perspective view of a plastic bag equipped with a check valve according to a first embodiment of the present invention
  • Figure 5 is a plan view of a plastic bag equipped with a check valve according to a first embodiment of the present invention
  • Figure 6 4 is an exploded perspective view of a plastic bag equipped with a check valve according to a first embodiment of the present invention
  • FIG. 7 is a cross-sectional view taken along line AA of FIG. 4
  • FIG. 8 is a vacuum operation by connecting a socket connected to a vacuum pump in FIG. 7.
  • 9 is a cross-sectional view of a state in which the socket is removed after the vacuum is completed in FIG. 8
  • FIG. 10 is a cross-sectional view of a state in which the check valve is locked by pressing the cover member in FIG. 9.
  • the plastic bag is equipped with a bending check valve of the present invention, the plastic bag 100, and a check valve 200.
  • the plastic bag 100 has an opening formed at one side thereof, and a through hole 110 is formed at one surface thereof.
  • embossing is formed to facilitate the flow of air.
  • the opening of the plastic bag 100 may be opened and closed with a zipper portion, or may be formed without a zipper portion and sealed using a separate clip member.
  • the check valve 200 is coupled to one surface of the plastic bag 100 by an adhesive sheet or an adhesive to open and close the through hole 110, and includes a cover member 210 and an opening / closing member 220.
  • Cover member 210 is made of a thin synthetic resin film having an elastic force, is attached to one surface of the plastic bag 100, the pressure bending portion protruded convexly in a dome (dome) shape in the opposite direction of the plastic bag ( 211) is formed.
  • a first discharge hole 212 communicating with the through hole 110 is formed at the center of the pressure bending part 211.
  • the pressure bending part 211 may be bent and elastically deformed in an up and down direction by an external force.
  • the pressure bending part 211 is bent downward in the direction of the opening and closing member 220 by an external force, thereby pressing and closing the opening and closing member 220 to one surface of the plastic bag 100, thereby acting as follows.
  • the first discharge hole 212 is closed in close contact with the opening and closing member 220, and second, the second discharge hole 222 formed in the opening and closing member 220 to be described later the outer peripheral portion of the first discharge hole (212)
  • the second discharge hole 222 is further blocked by communicating with the through hole 110 by pressing the circumference, and pressurized by pressing the third opening and closing member 220 can prevent the flow of the opening and closing member 220.
  • the pressure bending part 211 In order for the pressure bending part 211 to be bent while being elastically deformed downward or upward more easily, the pressure bending part 211 has a bent groove 213 around the spaced apart from the first discharge hole 212 by a predetermined interval. ) Is formed.
  • the pressure bending part 211 in which the first discharge hole 212 is formed is bent downward and upward based on the bending groove 213 to press or release the opening / closing member 220.
  • the opening and closing member 220 is made of an elastic material such as silicon and is disposed between the one surface of the plastic bag 100 and the cover member 210 inside the pressure bending part 211, and the through hole 110 and the first discharge hole.
  • a second discharge hole 222 communicating with 212 is formed.
  • the opening and closing member 220 may be formed in a dome shape or a flat plate shape in which the central portion protrudes convexly in an upward direction, that is, in the opposite direction of the plastic bag 100.
  • the opening and closing member 220 is made of a dome shape, so that the lower surface of the outer peripheral portion in contact with one surface of the plastic bag 100 in a free state.
  • the first discharge hole 212 and the second discharge hole 222 are disposed at the same center in the vertical direction, and the first discharge hole 212 and the second discharge hole are disposed in the same position.
  • the ball 222 and the through hole 110 are arranged to be eccentric with each other in the vertical direction.
  • the second discharge hole 222 is formed smaller than the first discharge hole 212, so that the second discharge hole 222 is disposed inside the first discharge hole 212.
  • first discharge hole 212 and the second discharge hole 222 is a mutual intersection
  • first discharge hole 212 and the second discharge hole 222 and the through hole 110 is a mutual intersection
  • the pressure bending part 211 is bent downward so that the outer circumference of the first discharge hole 212 presses the circumference of the second discharge hole 222 to block the second discharge hole 222 and the through hole 110. , The first discharge hole 212 is sealed by the upper portion is pressed by the opening and closing member 220, double sealing the plastic bag (100).
  • the downward bending pressure bending portion 211 is pressed by the plastic bag 100 as well as the opening and closing member 220, as shown in Figure 10 the other side of the opposite surface of the plastic bag 100 is checked It is preferable to pressurize enough to protrude in the opposite direction of the valve (200).
  • the second discharge hole 222 may be formed in an open hole shape at all times, but is formed by cutting the opening and closing member 220 so that the cutting surface is in contact with each other in a free state.
  • the second discharge hole 222 is formed in a '+' shape.
  • the second discharge hole 222 may be formed in a '-' shape.
  • the second discharge hole 222 is closed in contact with the cutting surface of the opening and closing member 220 in a free state, the cutting surface of the opening and closing member 220 is bent open by the external force.
  • the state of the check valve 200 in the state of storing the food and the like of the plastic bag 100 is shown in FIG.
  • the lower surface of the outer peripheral portion of the opening / closing member 220 having a dome shape in which the central portion protrudes upwards is in contact with one surface of the plastic bag 100 by gravity, and the opening and closing member 220 is a through hole 110. Located at the top of the.
  • the second discharge hole 222 is in contact with each other, the cut surface is maintained in a closed state, the second discharge hole 222 and the through hole 110 are in a mutually eccentric position.
  • the second discharge hole 222 is located at the center, and the through hole 110 is located at the side eccentric from the second discharge hole 222.
  • the check valve 200 may be directly attached to one surface of the plastic bag 100 by the user, or the check valve 200 may be attached to one surface of the plastic bag 100 from the beginning.
  • a socket 230 connected to an external vacuum pump (not shown) and a hose are disposed on the upper surface of the check valve 200 to vacuum the inside of the plastic bag 100 in this state. do.
  • the socket 230 surrounds the first discharge hole 212 and the second discharge hole 222.
  • the second discharge hole 222 is bent upwardly by the suction surface of the second discharge hole 222 and the second discharge hole 222 is opened by the suction force of the vacuum pump.
  • the air inside the plastic bag 100 is introduced into the lower portion of the opening and closing member 220 through the through hole 110, which passes through the second discharge hole 222 and the first discharge hole 212 and then the socket. Go to 230, which is again discharged to the outside via a vacuum pump.
  • the opening and closing member 220 made of an elastic material gradually descends toward the plastic bag 100 to gradually close the through hole 110.
  • the opening and closing member 220 is lowered while the vacuum operation is performed inside the plastic bag 100, the closing operation of the through hole 110 is performed at the same time as the vacuum operation of the plastic bag 100 is finished.
  • the second discharge hole 222 is bent in the upward direction is moved to the original position by the elastic restoring force and the vacuum pressure, the cut surface forming the second discharge hole 222 is in contact with each other is closed.
  • the through hole 110 is primarily blocked from the outside by the contact surface between the lower surface of the opening and closing member 220 and the upper surface of the plastic bag 100.
  • the upper portion of the pressure bending portion 211 is bent while elastically deformed in the direction of the opening and closing member 220 based on the bending groove 213.
  • the outer circumferential portion of the first discharge hole 212 is in close contact with the upper surface of the opening and closing member 220 by bending the pressure bending part 211 while surrounding the second discharge hole 222.
  • the outer peripheral portion of the first discharge hole 212 is in close contact with the upper surface of the opening and closing member 220, the first discharge hole 212 is closed by the opening and closing member 220.
  • the second discharge hole 222 is further pressed in the direction of the plastic bag 100 is further blocked the connection with the through hole 110, the opening and closing member 220 Is fixed without flow.
  • the opening / closing member 220 is strongly applied to the plastic bag 100. In close contact with each other, the opening and closing member 220 may be spaced apart from the plastic bag 100 to prevent the through hole 110 from being opened.
  • the first discharge hole 212 is in close contact with the upper surface of the opening and closing member 220, it is possible to block the outside air from flowing directly into the pressure bending portion 211 through the first discharge hole (212).
  • the air that can be introduced from the outside through the cut surface of the second discharge hole 222, the lower surface of the opening and closing member 220 made of a dome shape is in close contact with one surface of the plastic bag 100, like a rubber suction plate. Since the outer circumferential portion of the first discharge hole 212 presses the circumference of the second discharge hole 222, the inflow becomes more difficult.
  • the opening and closing member 220 is formed in a dome shape in the opposite direction of the plastic bag 100 in the free state, it can prevent the phenomenon that the outer peripheral portion of the opening and closing member 220 is lifted from the plastic bag (100).
  • the bent check valve 200 of the present invention As described above, the bent check valve 200 of the present invention, the opening and closing member 220 to close the through-hole 110 by the vacuum pressure, and the opening and closing member 200 by the pressure bending portion 211 vinyl.
  • the plastic bag 100 By tightly adhering to the bag 100 and closing the through hole 110, the plastic bag 100 may be strongly sealed in a double.
  • the pressure bending part 211 is elastically deformed based on the bending groove 213 to be deformed to its original state.
  • the opening and closing member 220 is in close contact with one surface of the plastic bag 100 to close the through hole 110, the outside air does not flow into the interior of the plastic bag (100).
  • dome-shaped opening and closing member 220 is deformed to maintain the state as shown in FIG.
  • FIG. 11 is a cross-sectional view according to a second embodiment of the present invention
  • FIG. 12 is a cross-sectional view of a state in which a vacuum operation is performed by connecting a socket connected to a vacuum pump to FIG. 11,
  • FIG. FIG. 14 is a cross-sectional view of the state in which the check valve is locked by pressing the cover member in FIG. 13.
  • the second embodiment has a difference between the cover member 210 and the opening / closing member 220 compared to the first embodiment, which will be described below.
  • the plastic bag is equipped with a bending type check valve of the present invention, the plastic bag 100, and the check valve 200.
  • the plastic bag 100 is the same as the first embodiment, a detailed description thereof will be omitted.
  • the check valve 200 is coupled to one surface of the plastic bag 100 by an adhesive sheet or an adhesive to open and close the through hole 110, and includes a cover member 210 and an opening / closing member 220.
  • the cover member 210 has a pressure bending portion 211 and a first discharge hole 212 as in the first embodiment.
  • an embossing 215 is formed on the inner surface of the pressure bending part 211, and a bending groove 213 for bending is formed.
  • the embossing 215 allows the opening and closing member 220 to form a flow path of air when the opening and closing member 220 is in contact with the inner surface of the pressure bending part 211.
  • the opening and closing member 220 is disposed between one surface of the plastic bag 100 and the cover member 210, and unlike the first embodiment, the second discharge hole is not formed.
  • the opening and closing member 220 is disposed to be movable in the vertical direction between one surface of the plastic bag 100 and the cover member 210.
  • the opening and closing member 220 may be formed in a flat plate shape, or may be formed in a dome shape as in the present embodiment.
  • the through hole 110 is opened by the opening / closing member 220 to communicate with the first discharge hole 212.
  • the embossing 215 is formed on the inner surface of the pressure bending portion 211, the air introduced into the cover member 210 through the through hole 110, the flow path formed between the embossing (215) Moving to the first discharge hole 212, which is again discharged to the outside via the socket 230 and the vacuum pump.
  • the through hole 110 is closed by the opening and closing member 220.
  • the pressure bending part 211 is bent downward so that the outer circumferential portion of the first discharge hole 212 presses the opening / closing member 220.
  • the air inside the plastic bag is discharged to the outside through a check valve, and the inside of the plastic bag is sealed in a vacuum state so that it can be safely stored for a long time.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Check Valves (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)

Abstract

La présente invention concerne un sac en vinyle muni d'un clapet de non-retour pliable attaché, qui permet un stockage sans danger des aliments ou similaires placés à l'intérieur du sac en vinyle, avec décharge de l'air se trouvant à l'intérieur du sac en vinyle vers l'extérieur au moyen d'un clapet de non-retour, et scellage de l'intérieur du sac en vinyle dans un état de vide. Le clapet de non-retour de la présente invention comporte : un élément capuchon comportant une pièce pliante à pression qui est attachée sur un côté du sac en vinyle, qui forme une saillie convexe dans le sens opposé du sac en vinyle, et qui est déformée élastiquement, et un premier trou de décharge communiquant avec un trou au centre de la pièce pliante à pression ; et un élément d'ouverture/de fermeture qui est réalisé en un matériau élastique, qui est situé entre un côté du sac en vinyle et l'élément capuchon à l'intérieur de la pièce pliante à pression, et qui ouvre et ferme l'espace entre le trou et le premier trou de décharge. L'élément d'ouverture/de fermeture entre en contact avec un côté du sac en vinyle par pression à vide et scelle le trou pendant la réalisation du vide. La pièce pliante à pression est pliée vers le bas vers l'élément d'ouverture/de fermeture sous l'effet d'une force externe, met l'élément d'ouverture/de fermeture en contact avec un côté du sac en vinyle, et fixe l'élément d'ouverture/de fermeture. La pièce pliante à pression pliée vers le bas se plie vers le haut dans le sens opposé de l'élément d'ouverture/de fermeture sous l'effet d'une force externe et est déformée élastiquement dans la forme d'origine de celle-ci.
PCT/KR2010/000746 2009-02-06 2010-02-05 Sac en vinyle muni d'un clapet de non-retour pliable attaché Ceased WO2010090483A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2009-0009974 2009-02-06
KR1020090009974A KR101117557B1 (ko) 2009-02-06 2009-02-06 벤딩형 체크밸브가 장착된 비닐봉투

Publications (2)

Publication Number Publication Date
WO2010090483A2 true WO2010090483A2 (fr) 2010-08-12
WO2010090483A3 WO2010090483A3 (fr) 2010-11-25

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PCT/KR2010/000746 Ceased WO2010090483A2 (fr) 2009-02-06 2010-02-05 Sac en vinyle muni d'un clapet de non-retour pliable attaché

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KR (1) KR101117557B1 (fr)
WO (1) WO2010090483A2 (fr)

Cited By (3)

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WO2016040029A1 (fr) * 2013-09-11 2016-03-17 Sunbeam Products, Inc. Indicateur d'étanchéité sous vide pour sachets de conservation d'aliments
US10002781B2 (en) 2014-11-10 2018-06-19 Brooks Automation, Inc. Tool auto-teach method and apparatus
TWI869268B (zh) * 2024-04-22 2025-01-01 黃大山 逆止閥用密封塞

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
WO2016040029A1 (fr) * 2013-09-11 2016-03-17 Sunbeam Products, Inc. Indicateur d'étanchéité sous vide pour sachets de conservation d'aliments
US9340324B2 (en) 2013-09-11 2016-05-17 Sunbeam Products, Inc. Vacuum seal indicator for food preservation bags
US10002781B2 (en) 2014-11-10 2018-06-19 Brooks Automation, Inc. Tool auto-teach method and apparatus
US11908721B2 (en) 2014-11-10 2024-02-20 Brooks Automation Us, Llc Tool auto-teach method and apparatus
TWI869268B (zh) * 2024-04-22 2025-01-01 黃大山 逆止閥用密封塞

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WO2010090483A3 (fr) 2010-11-25
KR20100090605A (ko) 2010-08-16
KR101117557B1 (ko) 2012-03-05

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