EP0243750B1 - Sac fabriqué en matière thermoplastique - Google Patents

Sac fabriqué en matière thermoplastique Download PDF

Info

Publication number
EP0243750B1
EP0243750B1 EP19870105234 EP87105234A EP0243750B1 EP 0243750 B1 EP0243750 B1 EP 0243750B1 EP 19870105234 EP19870105234 EP 19870105234 EP 87105234 A EP87105234 A EP 87105234A EP 0243750 B1 EP0243750 B1 EP 0243750B1
Authority
EP
European Patent Office
Prior art keywords
welding seams
welds
bag
gussets
bag according
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.)
Expired - Lifetime
Application number
EP19870105234
Other languages
German (de)
English (en)
Other versions
EP0243750A3 (en
EP0243750A2 (fr
Inventor
Fritz Achelpohl
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher 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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Priority to AT87105234T priority Critical patent/ATE54280T1/de
Publication of EP0243750A2 publication Critical patent/EP0243750A2/fr
Publication of EP0243750A3 publication Critical patent/EP0243750A3/de
Application granted granted Critical
Publication of EP0243750B1 publication Critical patent/EP0243750B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65D33/01—Ventilation or drainage of bags

Definitions

  • the invention relates to a sack made of thermoplastic film according to the preamble of claim 1.
  • the ventilation openings are located on the inner walls of the gussets lying one above the other in a flat sack in a strip parallel to the head and bottom weld seams, which contains the gusset weld seams and whose width their projections onto the outer ones Folded edges correspond, namely on the inner parts of the parts of the walls diagonally divided by the gusseted weld seams in their central regions.
  • the ventilation openings in its filled state are covered by the outer gusset parts of the base covering these, so that they do not immediately form any external openings which perforate the sack.
  • moisture and water can easily penetrate into the pockets formed by the gusset and are open to the outside and reach the interior of the sack through the ventilation openings.
  • a sack made of thermoplastic plastic film which is provided in the region of its opening side which is later to be closed by a transverse head weld, with welds forming corner welds which run obliquely. There are also openings for venting the filled sack.
  • the welds forming the corner welds are designed with interruptions forming ventilation channels.
  • FR-A-2 512 424 shows a sack made of thermoplastic plastic film, in which ventilation channels and ventilation openings are provided.
  • the object of the invention is therefore to provide a sack of the type specified at the outset, the ventilation openings of which are better protected against external influences and in particular against the ingress of water or moisture into the sack.
  • this object is achieved in a sack of the generic type by the features specified in the characterizing part of claim 1.
  • the sack according to the invention is, as it were, provided with ventilation channels and vent openings arranged in a labyrinthine manner, so that moisture and water cannot get into the inside of the sack at all or only under extremely unfavorable circumstances.
  • the labyrinth effect is additionally improved if only the inner walls of the gusset, which lie on top of one another in the flat, unfilled sack, are provided with perforations.
  • the gussets of the flat-lying sacks are provided with at least one perforation which is passed through all four layers of the side gussets. Such continuous perforations are easier to make than perforations that only detect the inner walls of the gussets.
  • the single figure shows a sack chain 1 'made of flat gusseted sacks, which are formed from a slack sheet provided with gussets 2.
  • the tubular web provided with gussets 2 is provided with bottom seams 3, perforation lines 4 and corner welds at equal intervals to produce the individual gusseted bags.
  • weld seams 5 'forming the corner welds end at a distance from the outer edges 11 of the flat tube 1'.
  • weld seams 14 run parallel to the corner weld seams 5 'and at a short distance from them from the outer edges 11. These weld seams 14 can have different lengths, as can be seen from the single figure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)

Claims (5)

1. Sac en matière thermoplastique constitué par un segment tubulaire pourvu de soufflets latéraux (2) qui, dans la zone de son fond formé par une ligne de soudure de fond dirigée transversalement et/ou dans la zone de son côté d'ouverture appelé à être fermé ultérieurement par une ligne de soudure de tête, est pourvu de soudure (5') formant soudures de découpage d'angle, effectuées à travers les deux couches extérieures respectives des soufflets latéraux (2), qui, partant obliquement des arêtes extérieures des soufflets latéraux (2), s'étendent obliquement en direction des lignes de soudure de fond et/ou des lignes de soudure de têtes ultérieures et se terminent dans la zone des arêtes de pliage intérieures, et qui est pourvu d'ouvertures (9') pour le désaérage du sac rempli, caractérisé en ce que les lignes de soudure (5') formant les soudures de découpage des angles se terminent à une certaine distance avant les arêtes (11) extérieures de la bande tubulaire (1') mise à plat et qu'il est prévu parallèlement aux lignes de soudure (5') et à une faible distance de celles-ci des lignes de soudure (14) partant des arêtes (11) extérieures et dirigées obliquement vers l'intérieur, afin de former des joints à labyrinthe (13).
2. Sac selon la revendication 1, caractérisé en ce que les lignes de soudure (5' et/ou 14) formant les soudures de découpage d'angle sont réalisées avec des interruptions formant des canaux de désaérage.
3. Sac selon la revendication 1 ou 2, caractérisé en ce qu'au moins une des parois de chaque coin formé par les soudures de découpage d'angle présente des perforations (9).
4. Sac selon la revendication 3, caractérisé en ce que seules les parois intérieures des coins, qui se trouvent à l'intérieur lorsque le sac non rempli est mis à plat, sont pourvues de perforations (9).
5. Sac selon la revendication 3, caractérisé en ce que les coins des sacs mis à plat sont pourvus d'au moins une perforation (9') traversant la totalité des quatre couches des soufflets latéraux.
EP19870105234 1986-04-23 1987-04-08 Sac fabriqué en matière thermoplastique Expired - Lifetime EP0243750B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87105234T ATE54280T1 (de) 1986-04-23 1987-04-08 Sack aus thermoplastischer kunststofffolie.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3613783 1986-04-23
DE3613783 1986-04-23
DE19873705891 DE3705891A1 (de) 1986-04-23 1987-02-24 Seitenfaltensack aus thermoplastischer kunststoffolie mit entlueftungsoeffnungen
DE3705891 1987-02-24

Publications (3)

Publication Number Publication Date
EP0243750A2 EP0243750A2 (fr) 1987-11-04
EP0243750A3 EP0243750A3 (en) 1988-10-05
EP0243750B1 true EP0243750B1 (fr) 1990-07-04

Family

ID=25843160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870105234 Expired - Lifetime EP0243750B1 (fr) 1986-04-23 1987-04-08 Sac fabriqué en matière thermoplastique

Country Status (2)

Country Link
EP (1) EP0243750B1 (fr)
DE (1) DE3705891A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008007645U1 (de) 2008-06-07 2008-09-04 Nordenia Deutschland Halle Gmbh Verpackung aus einer Kunststofffolie
DE102007062814A1 (de) 2007-12-21 2009-06-25 Nordenia Deutschland Halle Gmbh Verpackung

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419638A (en) * 1993-05-06 1995-05-30 Jamison; Mark D. Pressure sensitive gas valve for flexible pouch
US6629599B2 (en) 1996-04-03 2003-10-07 Sealed Air Corporation Foam in bag packaging system
US6272813B1 (en) 1996-04-03 2001-08-14 Sealed Air Corporation Foam in bag packaging system
US5699902A (en) * 1996-04-03 1997-12-23 Sperry; Laurence Burst Foam in bag packaging system
US5996782A (en) * 1997-04-14 1999-12-07 Sealed Air Corporation Foam in bag packaging system for manual use
DE19720020C1 (de) * 1997-05-13 1998-10-01 Korsnaes Wilhelmstal Gmbh Papi Papiersack oder Papierbeutel mit zwei Lagen
JP3902494B2 (ja) * 2001-07-19 2007-04-04 博之 山田 脱気構造を有する袋体及びその製造方法
JPWO2004026717A1 (ja) * 2002-09-04 2006-01-12 石崎資材株式会社 逆止弁機能を備えた圧縮収納袋
DE10353095A1 (de) * 2003-11-12 2005-06-30 Windmöller & Hölscher Kg Perforierter FFS-Sack
EP1820745A1 (fr) * 2006-02-17 2007-08-22 Mondi Packaging AG Emballage flexible avec soupape de ventilation
DE202006012289U1 (de) 2006-08-10 2007-12-13 Haver & Boecker Ohg Offener Sack aus einem schweißfähigen Material
DE102013109656A1 (de) * 2013-09-04 2015-03-05 Mondi Halle Gmbh Seitenfaltenbeutel aus einem Kunststoffgewebeverbund
CA3054929A1 (fr) 2017-03-27 2018-10-04 Construction Research & Technology Gmbh Sac pour substances liquides et poudreuses a section de surface soluble, procede et utilisation associee et utilisation d'une section de surface soluble

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1868662U (de) * 1963-01-11 1963-03-07 Osthushenrich Kg Kunststoffsack mit entlueftungsvorrichtung.
GB1066487A (en) * 1963-10-07 1967-04-26 Ici Ltd Vented bags
BE689438A (fr) * 1965-11-09 1967-04-14
DE2334841A1 (de) * 1973-07-09 1975-02-13 Bosch Gmbh Robert Bodenfaltenbeutel
FR2512424A1 (fr) * 1981-09-10 1983-03-11 Collet Cafes Sachet d'emballage sous vide
NL8201684A (nl) * 1982-04-22 1983-11-16 Wavin Bv Kunststofzak met harmonikavouwen met perforaties.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007062814A1 (de) 2007-12-21 2009-06-25 Nordenia Deutschland Halle Gmbh Verpackung
DE202008007645U1 (de) 2008-06-07 2008-09-04 Nordenia Deutschland Halle Gmbh Verpackung aus einer Kunststofffolie

Also Published As

Publication number Publication date
DE3705891A1 (de) 1987-10-29
EP0243750A3 (en) 1988-10-05
EP0243750A2 (fr) 1987-11-04

Similar Documents

Publication Publication Date Title
EP0243750B1 (fr) Sac fabriqué en matière thermoplastique
DE1287426B (de) Beutel mit Entlueftungsoeffnungen und Verfahren zum Herstellen dieser Beutel
DE2925440A1 (de) Mehrwandiger beutel sowie verfahren und vorrichtung zur herstellung eines mehrwandigen beutels
DE2435388A1 (de) Plastikbeutel mit luftdurchlass und deren verwendung
EP0494582A1 (fr) Emballage sous forme de sachet avec un moyen facilitant l'ouverture
DE3102192C2 (de) Tragetasche aus thermoplastischer Kunststoffolie
EP0361006A1 (fr) Sac pourvu d'oeillets de suspension près du bord
EP0722408B1 (fr) Sachet, notamment de conditionnement de substances sensibles a l'humidite
EP0294734B1 (fr) Feuille d'emballage pour plaques rectangulaires, en particulier pour le chocolat, et procédé de fabrication
DE3312925A1 (de) Ventilsack
DE3145259A1 (de) Als verpackungsmittel fuer schuettgueter verwendbarer sack aus vorzugsweise kunststoffolie
DE10151843A1 (de) Beutel aus thermoplastischer Kunststofffolie
EP0498047B1 (fr) Sachet à fond croisé ou plat avec valve
DE102019100193A1 (de) Mehrlagiger Sack
CH651799A5 (de) Pappezuschnitt und hieraus hergestellter behaelter.
DE4021801A1 (de) Sack oder beutel mit im gefuellten zustand rechteckigem boden und angeklebtem griffteil
CH631125A5 (de) Verpackungsbehaelter.
DE2213908C2 (de) Ventilsack
CH398444A (de) Flachlegbare und aufrichtbare Faltschachtel
EP0121041A2 (fr) Sac à plis latéraux avec sac extérieur de consolidation et sac intérieur ainsi que procédé pour sa fabrication
DE8133295U1 (de) Als Verpackungsmittel fuer Schuettgueter verwendbarer Sack aus vorzugsweise Kunststoffolie
DE3308282C2 (de) Verfahren zum Verpacken von quaderförmigen Stückgutstapeln mittels Schrumpffolie sowie Folienhaube zur Durchführung des Verfahrens
DE1654411C (de) Sack oder Beutel aus thermoplastischem Material mit einem damit verbundenen flachen, schlauchförmigen Füllventil
DE19720020C1 (de) Papiersack oder Papierbeutel mit zwei Lagen
DE2364387C3 (de) Kunststoffsack mit Balgfalten

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE FR GB IT NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE FR GB IT NL SE

17P Request for examination filed

Effective date: 19881107

17Q First examination report despatched

Effective date: 19890302

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE FR GB IT NL SE

REF Corresponds to:

Ref document number: 54280

Country of ref document: AT

Date of ref document: 19900715

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: BUGNION S.P.A.

ITTA It: last paid annual fee
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 87105234.6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19980326

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19980330

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19980427

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990408

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990408

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990409

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19990408

EUG Se: european patent has lapsed

Ref document number: 87105234.6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020423

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20020425

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20020429

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030430

BERE Be: lapsed

Owner name: *WINDMOLLER & HOLSCHER

Effective date: 20030430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031101

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20031101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031231

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050408