EP0593315A2 - Sac pourvu de moyens d'évacuation d'air pour emmagasiner des articles - Google Patents

Sac pourvu de moyens d'évacuation d'air pour emmagasiner des articles Download PDF

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Publication number
EP0593315A2
EP0593315A2 EP93401024A EP93401024A EP0593315A2 EP 0593315 A2 EP0593315 A2 EP 0593315A2 EP 93401024 A EP93401024 A EP 93401024A EP 93401024 A EP93401024 A EP 93401024A EP 0593315 A2 EP0593315 A2 EP 0593315A2
Authority
EP
European Patent Office
Prior art keywords
air
bag
bag body
wall
barrel
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.)
Withdrawn
Application number
EP93401024A
Other languages
German (de)
English (en)
Other versions
EP0593315A3 (en
Inventor
Masahiro Toyoshima
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.)
Nippon Seiki Co Ltd
Nihon Seiki Co Ltd
Original Assignee
Nippon Seiki Co Ltd
Nihon Seiki Co Ltd
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 Nippon Seiki Co Ltd, Nihon Seiki Co Ltd filed Critical Nippon Seiki Co Ltd
Publication of EP0593315A2 publication Critical patent/EP0593315A2/fr
Publication of EP0593315A3 publication Critical patent/EP0593315A3/en
Withdrawn legal-status Critical Current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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/24—End- or aperture-closing arrangements or devices using self-locking integral or attached closure elements, e.g. flaps
    • 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
    • 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
    • B65D81/2038—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 with means for establishing or improving vacuum

Definitions

  • This invention relates to an air-exaustible bag for storing articles such as thick towels and garments compactly therein, which are likely to be swelled once air has entered the articles.
  • Japanese Utility Model Laid-Open No. 61-69045 discloses a bag of this type as illustrated in FIG. 7. It discloses a storage bag comprising a bag body 21 being made of synthetic resin film, an opening 22 being defined on a side of the bag, mating portions of a slide fastener 24 being respectively affixed to opposed edges 23 of parallel walls of the opening 22, an air exhaust port 25 being defined on the bag body 21.
  • a storage bag comprising a bag body 21 being made of synthetic resin film, an opening 22 being defined on a side of the bag, mating portions of a slide fastener 24 being respectively affixed to opposed edges 23 of parallel walls of the opening 22, an air exhaust port 25 being defined on the bag body 21.
  • an article 1 is placed in the bag body 21 through the opening 22.
  • the opening 22 is sealed by sliding a slide of the slide fastener 24 and clcsing the slide fastener 24.
  • the air present in the bag body 21 is evacuated through the air exhaust port 25, then inner surfaces of the bag body 21
  • Japanese Utility Model Publication No. 3-56536 also discloses a bag of this type.
  • a construction of this bag is mostly similar to those of the above-described bag except that an inner surface of an substrate of the bag body 21 is coated with an adherent sheet by heating and melting both of the bag body 21 and the adherent sheet.
  • a substrate of the bag body 21 can be laminated with a heat sensitive adhesive to form a double layered substrate.
  • Japanese Patent Laid-Open No. 1-139346 further discloses a bag of this type as illustrated in FIG. 8, in which an opening 22 is provided on opposite inner surfaces thereof with a fusion fastener 28 which is fused and closed by the application of heat.
  • a fusion fastener 28 which is fused and closed by the application of heat.
  • an article 21 is placed in the bag body 21, the fusion fastener 28 is fused and sealed by pressing the same with a hot iron. Then, the air present in the bag body is forcibly evacuated through an air exhaust port 29.
  • an article 1 is compressed with the negative pressure and maintained in the bag compactly.
  • the pressure and heat applied portion may be irregularly lengthened, and subsequently wrinkled. Because each of materials used in the double-layered substrate have a different coefficient of extension against heat or pressure. Thus, it is difficult to seal the opening accurately and hermetically.
  • an air-exaustible bag having an improved closure for closing the bag which is adapted for storing swelled articles with air such as towels and garments compactly and easily therein at vacuum.
  • an air-exhaustible bag for storing articles therein at vacuum comprising first and second walls being sealingly joined along a major portion of their sides and bottom portions to form a bag body, an opening being defined by top edges of the first and second walls, an air exhaust port being defined on either one of the first and second walls, wherein the first and second walls are made of a material which can inherently be sealed to itself merely by contact and separated from each other without adversely affecting each surface thereof, whereby the opening can be hermetically and separably closed.
  • the bag body is made of a sheet material which can inherently be sealed to itself merely by contact
  • the closure for the bag body can be easily achieved by overlapping the first wall on the second wall at any place except a place where the article is interposed. If an overlapped place is folded at least one time, the sealing effect can be increased, thus the hermetical closure can be achieved at any place of the bag easily.
  • the air present therein are evacuated through the air exhaust port with a reciprocal pump or the like.
  • the swelled article in the bag body can be compressed with a negative pressure, while its dimension is reduced.
  • the article in the bag body of the present invention is thus compactly stored in a closet, a trunk or the like for a long period of time.
  • FIGS. 1 and 2 show an air-exhaustible bag constructed in accordance with one embodiment, which comprises a first wall 2a and a second wall 2b being of substantially the same length and being sealingly joined along a major portion of their sides and bottom portions to form a bag body 5, an opening 4 being defined by the top edges of the first and second walls, an air exhaust port 6 being defined on the first wall 2a, a cylindrical pipe 8 projecting outwardly away from the air exhaust port 6, and the cylindrical pipe 8 being provided at its top end with a plug 7.
  • the first and second walls of the bag body 5 are made of soft vinyl chloride, polybutadiene, or polyvinyliden chloride. It is commonly known that each of these materials can inherently be sealed to itself when each of the materials has been brought into contact in an overlying relationship. Sealing effect can be increased by applying a slight pressure to contacted areas of those materials with hand or the like. However, the application of the pressure is not necessary step for the sealing. Once each of the materials has been intimately contacted to itself, the hermetical sealing effect for the bag body 5 can be obtained, thus air hardly passes through the intimately contacted portion. In addition, each of the materials can smoothly be separated from itself without adversely affecting their surfaces by applying the peeling force thereon. Therefore, the bag body 5 of the present invention can be freely and separably closed by joining the first and second walls together at any places thereof, while preventing the air from entering the bag body 5.
  • the bag body 5 may be constructed with gussets 40 as illustrated in FIG. 3 such that a space in the bag body 5 can be adjusted for fitting itself to a size of the article 1.
  • a relatively thick articles such as sweaters can be easily placed and maintained in the bag without the deformation thereof.
  • substantially the whole length of the side of the bag body 5 are used to define the opening 4.
  • the opening can be defined in a partial length of the top edges of the walls 2a and 2b, or a corner of the bag body by cutting the corner diagonally.
  • the cylindrical pipe 8 comprising thermoplastic resin is affixed to the first wall 2a.
  • a flange 9 is formed at a lower end of the cylindrical pipe 8.
  • the flange 9 is of a large diameter as compared with that of the air exhaust port 6.
  • An upper surface of the flange 9 is fused to an inner surface of the first wall 2a by heating.
  • the cylindrical pipe 8 is tapered to the upper portion thereof.
  • the cylindrical pipe 8, a hinge 12, a plug 3 and a collar 13 are integrally formed as illustrated in FIG. 2.
  • a step portion 14 is formed in a middle portion of the cylindrical pipe 8.
  • the cylindrical pipe 8 is preferably tapered to the upper portion thereof. However it is not necessary to limit the cylindrical pipe 8 to such a configuration. A variety of configurations can be employed. It is important to form the cylindrical pipe 8 such that air present in the bag body 5 can be evacuated smoothly through the air exhaust port 6.
  • a reciprocating pump 15 of a compact type can be separably attached to the cylindrical pipe 8 through a pipe 17 for the air passage, to which a nozzle 16 is affixed to evacuate the air in the bag body 5.
  • the reciprocating pump 15 adapted for evacuating the air present in the bag body 5 comprises a barrel 31, a plunger 34 being movably inserted in the barrel 31, a first port 30 being provided at an top end of the barrel 31, a second port 32 being provided at an top end of the plunger 34, and a handle 33 being formed at an opposite end of the plunger 34.
  • a first nozzle 36 is affixed to the first port 30 such that the reciprocating pump 15 or the pipe 17 can be separably attached to the first port 30.
  • the pipe 17 is provided at its opposite end with a nozzle 16.
  • a first check valve 35 is arranged in the fist nozzle 36 in such a manner as to prevent the reverse flow of the air when the air present in the bag body 5 is evacuated.
  • a second nozzle 38 is affixed to the second port 32 of the plunger 34 such that the air drawn in the barrel 31 is subsequently drawn in the plunger 34 through the second nozzle 38.
  • a second check valve 37 is arranged in the second nozzle 38 in such a manner as to prevent the reverse flow, when the air in the barrel 31 is drawn into the plunger 34.
  • An air vent hole 39 is defined in a side wall of the plunger 34 such that the air drawn in the plunger 34 is exhausted outside.
  • the article 1 is placed in the bag body 5 through the opening 4 and inner surfaces of the first wall 2a and the second wall 2b are overlapped to one another. And a slight pressure is applied onto the overlapped area for an intimate contact. Then, the intimately contacted area of the first wall 2a and the second wall 2b are folded toward a center portion of the bag one time for secured sealing as illustrated in Fig. 2.
  • the hermetical closure for the bag can be easily obtained. If necessary, more secured closure can be obtained by folding the intimately contacted area several times.
  • the plug 7 is detached from the cylindrical pipe 8 on the first wall 2a to connect one end of the pipe 17 with the cylindrical pipe 8 through the first nozzle 36 of the pipe 17.
  • the opposite end of the pipe 17 is connected to the reciprocating pump 15 through the nozzle 16 of the pipe 17.
  • the air present in the bag body 5 is evacuated by reciprocating motions of the plunger 34 until the article 1 is compressed and hardened with the negative pressure applied thereto.
  • the pipe 17 is detached from the cylindrical pipe 8 and the plug 7 is pushed at its top end onto the cylindrical pipe 8 to close the cylindrical pipe 8 and place the cylindrical pipe 8 in the bag body 5.
  • FIG. 6 illustrates a storage state of such a flattened article as one example, in which the article 1 is neatly placed in a trunk 18, and the reciprocating pump 15 and the pipe 16 are affixed to a cover 19 of the trunk 18 with bands 20. Whereby, the article 1 can conveniently be stored in the bag body 5 compactly at vacuum in any place.
  • the bag body 5 When the bag body 5 is to be opened, the intimately contacted area of the first wall 2a and the second wall 2b are separated from each other without adversely affecting inner surfaces of the walls 2a and 2b.
  • the bag can be used repeatedly in this manner.
  • the reciprocating pump 15 is employed to evacuate the air present in the bag body 5.
  • an electric vacuum pump or the like can be used in place of the reciprocating pump 15.
  • a variety of configurations and functions of the reciprocating pump 15 can be selected within the scope of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vacuum Packaging (AREA)
  • Packages (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Bag Frames (AREA)
EP19930401024 1992-10-12 1993-04-21 Air-exaustible bag for storing articles Withdrawn EP0593315A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1992070826U JP2511559Y2 (ja) 1992-10-12 1992-10-12 脱気式保存袋
JP70826/92U 1992-10-12

Publications (2)

Publication Number Publication Date
EP0593315A2 true EP0593315A2 (fr) 1994-04-20
EP0593315A3 EP0593315A3 (en) 1994-06-29

Family

ID=13442779

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930401024 Withdrawn EP0593315A3 (en) 1992-10-12 1993-04-21 Air-exaustible bag for storing articles

Country Status (2)

Country Link
EP (1) EP0593315A3 (fr)
JP (1) JP2511559Y2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29500638U1 (de) * 1995-01-17 1995-02-23 Heymann, Hans-Helmut, 30926 Seelze Evakuierbares Behältnis aus nachgiebigem Material
DE19640528A1 (de) * 1996-10-01 1998-04-02 Roland Dr Gesche Verfahren, Vorrichtung und Behälter für die Behandlung von Teilen mit vakuumtechnischen Prozessen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7281259B2 (ja) * 2018-09-07 2023-05-25 株式会社生産日本社 製品入り外袋、製品入り外袋の巻き取り品又はつづら折り品、それらの製造方法及び袋体の供給方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1491226A (en) * 1974-12-11 1977-11-09 Pavlic I Receptacles
JPS6169045U (fr) * 1984-10-08 1986-05-12
JPS61217308A (ja) * 1985-03-09 1986-09-26 日本光フアイバ株式会社 包装体およびその製造法
JPH01139346A (ja) * 1987-11-13 1989-05-31 Akihiro Mori 物品の収容装置
JPH04142255A (ja) * 1990-09-26 1992-05-15 Earth Chem Corp Ltd 包装具
US5080155A (en) * 1990-12-28 1992-01-14 Hooleon Corporation Keyboard enclosure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29500638U1 (de) * 1995-01-17 1995-02-23 Heymann, Hans-Helmut, 30926 Seelze Evakuierbares Behältnis aus nachgiebigem Material
DE19640528A1 (de) * 1996-10-01 1998-04-02 Roland Dr Gesche Verfahren, Vorrichtung und Behälter für die Behandlung von Teilen mit vakuumtechnischen Prozessen

Also Published As

Publication number Publication date
EP0593315A3 (en) 1994-06-29
JPH0635143U (ja) 1994-05-10
JP2511559Y2 (ja) 1996-09-25

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