US20080240629A1 - Bag With Lateral Folds - Google Patents

Bag With Lateral Folds Download PDF

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Publication number
US20080240629A1
US20080240629A1 US10/599,204 US59920405A US2008240629A1 US 20080240629 A1 US20080240629 A1 US 20080240629A1 US 59920405 A US59920405 A US 59920405A US 2008240629 A1 US2008240629 A1 US 2008240629A1
Authority
US
United States
Prior art keywords
bag
folded
fused
end areas
gussets
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.)
Abandoned
Application number
US10/599,204
Other languages
English (en)
Inventor
Claus Biller
Andreas Becker
Detlef Hassmann
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.)
Bischof and Klein SE and Co KG
Original Assignee
Bischof and Klein SE and Co KG
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 Bischof and Klein SE and Co KG filed Critical Bischof and Klein SE and Co KG
Assigned to BISCHOF + KLEIN GMBH & CO. KG reassignment BISCHOF + KLEIN GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BECKER, ANDREAS, BILLER, CLAUS, HASSMANN, DETLEF
Publication of US20080240629A1 publication Critical patent/US20080240629A1/en
Abandoned 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
    • B65D31/10—Bags or like containers made of paper and having structural provision for thickness of contents with gusseted sides
    • 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
    • B65D33/18—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps
    • B65D33/20—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps using pressure-sensitive adhesive
    • 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
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor

Definitions

  • the invention relates to a bag having lateral folds, which bag is made of flexible multi-layer film whose inner layer is fusible, in a configuration according to the preamble of claim 1 .
  • the invention concerns the problem of a further improvement of the sealing action of the gussets at their upper ends.
  • the invention solves this problem by a gusseted bag having the features of claim 1 .
  • Embedding the upper edges in a fused connecting area after folding over the upper end areas of the lateral folds ensures that a complete and safe sealing action of the gussets at the upper end is present even when no special closure, be it by fusing or by an adhesive, is provided along the upper edges of the lateral folds. This is so because the fused connecting area forms a complete seal that, independent of additional measures, provides a reliable closure of the gussets at their upper edges.
  • the bag wall preferably the rear bag wall
  • FIG. 1 a broken-away view of the upper end area of a bag according to the invention
  • FIG. 2 a section approximately along the section line II-II of FIG. 1 ,
  • FIG. 3 a view similar to FIG. 1 of a modified bag embodiment
  • FIG. 4 a section view along the section line IV-IV of FIG. 3 .
  • FIG. 5 a section illustration similar to FIG. 4 showing a reclosable closure device at the top of the bag in open position.
  • the gusseted bag illustrated in the drawing is comprised of a flexible, multi-layer, at least two-layer, film that is preferably made from thermoplastic material.
  • the inner layer of the film is fusible and is comprised, for example, of a polyolefin such as polyethylene or polypropylene.
  • One or several layers can adjoin outwardly and, depending on the requirements, respectively, can be a metal foil, for example, aluminum foil, and/or a polyester layer that, in turn, is not fusible but has high strength and excellent printability.
  • the illustrated bag has a front wall 1 and a congruent rear wall 2 as well as lateral folds 3 , 4 inserted between them and extending from a bottom end, not illustrated, to the top end of the bag and ending in this connection at a spacing below the upper edge 5 of the bag walls 1 , 2 .
  • the bag walls 1 , 2 are fused with the gussets 3 , 4 as well as with the top area of the bag that is free of gussets along their edges, in particular, by longitudinal fusing seams 6 , 7 at the edges.
  • the bottom end is closed by a transverse fusing seam (not illustrated); this can be carried out before or after filling of the bag with the bulk material.
  • a closure device that is formed by a welding seam that can be provided before or after filling the bag with the bulk material.
  • a reclosable closure device that, in the embodiment according to FIG. 1 and FIG. 2 , is formed by pressure lock strips embodied like tongue and groove.
  • this reclosable closure device 8 is comprised of lock strips 9 , 10 extending across the width of the bag; one is attached to the front wall 1 of the bag and the other to the rear wall 2 of the bag by fusing or hot sealing.
  • the lock strips 9 , 10 support locking members 11 that, when pressure is applied, are transferred into a state of mutual engagement and, when a pulling force is applied, their mutual engagement is released.
  • the upper end area 12 of both gussets 3 , 4 is folded over along an inwardly and slantedly downwardly extending folding edge 13 wherein folding can be done toward the front wall 1 or toward the rear wall 2 .
  • the folded-over end areas 12 of the gussets 3 , 4 have the shape of a right triangle and are connected by fusing to the corresponding half of the gussets 3 , 4 facing them, as illustrated in FIGS. 2 , 4 , and 5 ; this is schematically illustrated by welding seam 14 .
  • the folded-over end areas 12 are fused with their outer side to the neighboring bag wall, in the illustrated embodiment to the rear wall 2 of the bag, as schematically illustrated by the welding seam 15 in FIGS.
  • an area 16 of the same-side gusset halves that adjoins the folded-over end areas 12 of the gussets 3 , 4 is also areally fused to the neighboring bag wall 2 so that the fused connecting areas include the top edges 17 of the folded-over end areas 12 .
  • a reclosable closure device 18 that is formed as a three-layer lock strip extending across the entire bag width is provided in the top area of the bag.
  • the two outer layers 19 , 20 are fused to the inner side of the neighboring bag wall 1 or 2 , respectively, as illustrated schematically by the fused connections 21 , 22 .
  • the central layer 23 is comprised of a resin or plastic material that is permanently adhesive or sticky and can be separated by cohesion fracture into two partial layers when the central layer 23 is exposed to a pulling force by pulling apart the bag walls 1 , 2 . After removal of bulk material, the two separated partial layers can again be combined to a closed central layer 23 by applying pressure.
  • the configuration according to FIGS. 3 to 5 corresponds to the bag embodiment of FIGS. 1 and 2 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
US10/599,204 2004-04-29 2005-04-29 Bag With Lateral Folds Abandoned US20080240629A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202004006857.5 2004-04-29
DE202004006857U DE202004006857U1 (de) 2004-04-29 2004-04-29 Seitenfaltenbeutel
PCT/EP2005/004605 WO2005105592A1 (de) 2004-04-29 2005-04-29 Seitenfaltenbeutel

Publications (1)

Publication Number Publication Date
US20080240629A1 true US20080240629A1 (en) 2008-10-02

Family

ID=34968367

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/599,204 Abandoned US20080240629A1 (en) 2004-04-29 2005-04-29 Bag With Lateral Folds

Country Status (8)

Country Link
US (1) US20080240629A1 (de)
EP (1) EP1740475B1 (de)
JP (1) JP2007534569A (de)
AU (1) AU2005237753B2 (de)
CA (1) CA2563328C (de)
DE (2) DE202004006857U1 (de)
ES (1) ES2292137T3 (de)
WO (1) WO2005105592A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080279484A1 (en) * 2007-05-07 2008-11-13 Illinois Tool Works Inc. Leak-proofing gussets on multi-wall paper and woven polypropylene packages or bags
US20110091140A1 (en) * 2008-06-17 2011-04-21 Bischof + Klein Gmbh & Co. Kg Side Gusseted Bag
US9981792B2 (en) 2014-03-07 2018-05-29 Poppack Llc Package for humanitarian efforts with unique reclosing mechanism

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6971794B2 (en) 2003-04-15 2005-12-06 Innoflex Incorporated Package having reclosable pour spout and method of forming same
US20070086683A1 (en) 2005-10-18 2007-04-19 Yeager James W Package having recloseable pour spout
JP4806565B2 (ja) * 2005-12-19 2011-11-02 トタニ技研工業株式会社 プラスチック袋
EP2077946B1 (de) 2006-10-17 2011-12-07 The Hudson-Sharp Machine CO. Verfahren zur herstellung eines beutels mit unterbrochenen seitenöffnungen
DK2093153T3 (da) * 2006-12-08 2012-12-10 Seisan Nipponsha Ltd Poselegeme af syntetisk resin med åbn-let funktion
JP5323249B1 (ja) * 2012-12-28 2013-10-23 トタニ技研工業株式会社 製袋機
HUE029237T2 (en) 2013-10-30 2017-02-28 Mondi Halle Gmbh Method for producing foil pouches

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5364189A (en) * 1993-07-09 1994-11-15 Kabushiki Kaisha Hosokawa Yoko Zippered bag and method of forming the same
US6030123A (en) * 1996-06-14 2000-02-29 Kabushiki Kaisha Meiwa Pax Side-gored bag having a first zipper tape with an area of increased thickness and with an area of progressively reduced thickness
US20010051008A1 (en) * 2000-06-10 2001-12-13 Johannes Wedi Gusseted bag made of a flexible weldable material
US20030210837A1 (en) * 2002-05-10 2003-11-13 Bischof + Klein Gmbh & Co. Kg Reclosable Packaging Container
US20040258332A1 (en) * 2002-07-24 2004-12-23 Mikio Totani Plastic bag and bag making machine therefor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20008403U1 (de) * 2000-05-10 2000-07-27 Bischof & Klein Seitenfaltenbeutel aus flexiblem Material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5364189A (en) * 1993-07-09 1994-11-15 Kabushiki Kaisha Hosokawa Yoko Zippered bag and method of forming the same
US6030123A (en) * 1996-06-14 2000-02-29 Kabushiki Kaisha Meiwa Pax Side-gored bag having a first zipper tape with an area of increased thickness and with an area of progressively reduced thickness
US20010051008A1 (en) * 2000-06-10 2001-12-13 Johannes Wedi Gusseted bag made of a flexible weldable material
US6398412B2 (en) * 2000-10-06 2002-06-04 Bischof Und Klein & Co. Kg Gusseted bag made of a flexible weldable material
US20030210837A1 (en) * 2002-05-10 2003-11-13 Bischof + Klein Gmbh & Co. Kg Reclosable Packaging Container
US20040258332A1 (en) * 2002-07-24 2004-12-23 Mikio Totani Plastic bag and bag making machine therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080279484A1 (en) * 2007-05-07 2008-11-13 Illinois Tool Works Inc. Leak-proofing gussets on multi-wall paper and woven polypropylene packages or bags
US20110091140A1 (en) * 2008-06-17 2011-04-21 Bischof + Klein Gmbh & Co. Kg Side Gusseted Bag
US8899836B2 (en) * 2008-06-17 2014-12-02 Bischof + Klein Gmbh & Co. Kg Side gusseted bag
US9981792B2 (en) 2014-03-07 2018-05-29 Poppack Llc Package for humanitarian efforts with unique reclosing mechanism

Also Published As

Publication number Publication date
CA2563328C (en) 2011-11-15
DE202004006857U1 (de) 2005-09-08
EP1740475B1 (de) 2007-08-08
AU2005237753A1 (en) 2005-11-10
JP2007534569A (ja) 2007-11-29
CA2563328A1 (en) 2005-11-10
DE502005001192D1 (de) 2007-09-20
WO2005105592A1 (de) 2005-11-10
AU2005237753B2 (en) 2010-06-03
EP1740475A1 (de) 2007-01-10
ES2292137T3 (es) 2008-03-01

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Legal Events

Date Code Title Description
AS Assignment

Owner name: BISCHOF + KLEIN GMBH & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BILLER, CLAUS;BECKER, ANDREAS;HASSMANN, DETLEF;REEL/FRAME:018290/0596

Effective date: 20060314

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION