EP0047389A1 - Récipients souples pour le transport et le stockage de produit en vrac - Google Patents

Récipients souples pour le transport et le stockage de produit en vrac Download PDF

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Publication number
EP0047389A1
EP0047389A1 EP81105952A EP81105952A EP0047389A1 EP 0047389 A1 EP0047389 A1 EP 0047389A1 EP 81105952 A EP81105952 A EP 81105952A EP 81105952 A EP81105952 A EP 81105952A EP 0047389 A1 EP0047389 A1 EP 0047389A1
Authority
EP
European Patent Office
Prior art keywords
strip
parts
container
lifting
pleated
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.)
Granted
Application number
EP81105952A
Other languages
German (de)
English (en)
Other versions
EP0047389B1 (fr
Inventor
Kauko Nieminen
Per Nyman
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.)
W Rosenlew Oy AB
Original Assignee
W Rosenlew Oy AB
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 W Rosenlew Oy AB filed Critical W Rosenlew Oy AB
Priority to AT81105952T priority Critical patent/ATE17696T1/de
Publication of EP0047389A1 publication Critical patent/EP0047389A1/fr
Application granted granted Critical
Publication of EP0047389B1 publication Critical patent/EP0047389B1/fr
Expired 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
    • B65D88/00—Large containers
    • B65D88/16—Large containers flexible
    • B65D88/1612—Flexible intermediate bulk containers [FIBC]
    • 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
    • B65D88/00—Large containers
    • B65D88/16—Large containers flexible
    • B65D88/1612—Flexible intermediate bulk containers [FIBC]
    • B65D88/1675—Lifting fittings
    • B65D88/1681—Flexible, e.g. loops, or reinforcements therefor

Definitions

  • the present invention concerns a flexible container for use in transporting and storing bulk goods, comprising a shell, a bottom and a filling aperture, and said container being provided with lifting loops for lifting the container, and on said container the lifting loops having been formed of strip-like parts which are straight extensions of the upper part of the shell, and said strip-like parts being joined togeher by at least one connecting seam.
  • Containers of this type are used for transporting and storing bulk goods, and the quantity of bulk goods is usually from a few hundred kilograms to several tons.
  • Such large-size bags have previously been manufactured in that a piece of material has been folded double and the doubled piece of material has been united by a seam in its upper part, which at the same time constitutes the lifting loop or loops of the large-size bag. Since in such large-size bags the seam is exactly at the point where the large-size bag is subjected to highest stresses for instance when being lifted, a large-size bag of this kind is susceptible to rupturing along the seam in the lifting loops.
  • the flexible container, or large-size bag may also be formed, as known in the art, of a tubular blank, of which the upper part - and the lower part too, of course - consists of unbroken unitary material.
  • a large-size bag of this type requires vertical seams, with the result that the structure is inferior in its strength owing to this circumstance.
  • a problem solution of this kind is for instance encountered in the Finnish patent application No. 771681.
  • a tubular blank is also required to have a very large diameter. But on modern machines turning out woven polypropylene fabric for instance only a given diameter size and no larger can be achieved. Therefore this.is a clear limitation on the manufacturing of a large-size bag from such a tubular blank.
  • the object of the invention is attained with a flexible container which is mainly characterized in that the strip-like parts are pleated strip-like parts presenting a lower plane of the pleat and, correspondingly, an upper plane of the pleat, and that said pleated strip-like parts have been disposed to overlap.
  • the other characteristic features of the container of the invention are readable in claims 2 and 3.
  • the flexible container 10 has been made of a tubular blank 11, which is open both at its upper and lower end. At the upper end of the blank 11, substantially in the centre, has been made a cut for the filling aperture 13. Moreover, at the upper end of the blank have been made cuts 18 which confine strip-like parts 14a, 14b, 15a and 15b. The lower margin of the tubular blank 11 is indicated with the reference numeral 19.
  • the tubular blank of Figs 1 and 2 is processed into a flexible container as shown in Fig. 3, having a shell 11a, bottom 12, substantially central filling aperture 13, and lifting loops 14a,15a and 14b,15b.
  • the bottom 12 of the container is closed by a connecting seam 20, known in itself in the art, closing the open lower margin 19 of the tubular balnk 11.
  • the connecting seam 20 is then located substantially in the central region of the bottom 12.
  • the flexible container 10 is in this embodiment a so-called pleated container in the shell part of which, lla, two mutually opposed pleats have been formed. Only one of the pleats is visible in Fig. 3, this pleat being formed as indicated by the interrupted line 21; in other words, the lower part of the pleat 21 has been folded to lie in the plane of the bottom 12 of the container 10.
  • the strip-like parts 14a and 15a, and 14b and 15b respectively, shown in Fig. 4 are pleated strip-like parts presenting a lower plane 22 of the pleat and, similarly, an upper plane 23 of the pleat.
  • the mutually opposing planes 22 and 23 of the pleat have substantially equal width and they hang together at one lateral edge 24 of the pleat.
  • the pleated strip-like parts 14a and 15a, and 14b and 15b respectively, have been disposed so as to overlap in requisite amount; and the strip-like parts 14a and 15a, and 14b and 15b respectively, have been joined by the connecting seam 25.
  • the connecting seam 25 may also be located at a substantial distance from the central region of the lifting loops, as is suggested by the connecting seams indicated with 16 and 17 in Fig. 3.
  • the lifting loops consist in this embodiment of the quadruple material thickness throughout the whole lifting loop structure.
  • the pleated structure of the strip-like parts 14a, and 15a respectively may also be such that one opposing plane of the pleat, e.g. the lower plane 22, is less in width and only extends across part of the breadth of the upper plane 23.
  • a certain part of the structure of the lifting loop construction will consist of the quadruple material thickness and a certain part, of double thickness material.
  • the pleated strip-like part 15a, respectively 15b has been disposed to be inside the pleated strip-like part 14a, or 14b respectively.
  • the embodiment depicted in Fig. 6 is . the same as that of Fig. 4.
  • the pleated lifting loop structure of the invention tolerates stresses which are about 20 to 30% higher than those tolerated by the lifting loop structure disclosed in the Finnish patent application No. 793029, the fact notwithstanding that in the lifting loop structure of the invention the connecting seam 25 may be located substantially in the central region of the lifting loops.
  • This mode of manufacturing also saves raw material, depending on the length of the blank, between 5.and 15X.
  • the greatest advantage of the lifting loop structure of the invention lies in the fact that when flexible containers conforming to the invention are being made, the connecting seam 25 of the lifting loops can be accomplished with the aid of one single automatic sewing machine.
  • the flexible container fitted with lifting loops according to the invention is in no way critical as regards the remaining part of the container.
  • a flexible container in the shell of which pleats have been formed of wich the lower parts have been folded to be complanar with the bottom of the container it is to advantage to use the bottom design disclosed in the Finnish patent application No. 802555, where the free lower margin of the tubular blank has been closed with a bottom seam known in itself in the art, located substantially in the central region of the container's bottom, and where the upper plane of the pleat folded into the container bottom's plane has been affixed by a connecting seam to the lower plane.
  • a very high-strength bottom structure is also obtained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Refuse Collection And Transfer (AREA)
  • Cartons (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Making Paper Articles (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Peptides Or Proteins (AREA)
  • Packages (AREA)
EP81105952A 1980-09-10 1981-07-28 Récipients souples pour le transport et le stockage de produit en vrac Expired EP0047389B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81105952T ATE17696T1 (de) 1980-09-10 1981-07-28 Flexibler behaelter fuer den transport und die lagerung von schuettguetern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI802846A FI60175C (fi) 1980-09-10 1980-09-10 Flexibel behaollare foer transport och lagring av massagods
FI802846 1980-09-10

Publications (2)

Publication Number Publication Date
EP0047389A1 true EP0047389A1 (fr) 1982-03-17
EP0047389B1 EP0047389B1 (fr) 1986-01-29

Family

ID=8513757

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81105952A Expired EP0047389B1 (fr) 1980-09-10 1981-07-28 Récipients souples pour le transport et le stockage de produit en vrac

Country Status (12)

Country Link
EP (1) EP0047389B1 (fr)
AT (1) ATE17696T1 (fr)
BG (1) BG43525A3 (fr)
CS (1) CS226033B2 (fr)
DD (1) DD201660A5 (fr)
DE (1) DE3173626D1 (fr)
FI (1) FI60175C (fr)
HU (1) HU187358B (fr)
NO (1) NO159370C (fr)
PL (1) PL128863B1 (fr)
RO (1) RO82238B (fr)
YU (1) YU42250B (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0106256A1 (fr) * 1982-10-12 1984-04-25 Unilever N.V. Sac en matière plastique
US4781470A (en) * 1984-12-21 1988-11-01 Norsk Hydro A.S. Flexible container with separate lifting area
EP0306253A1 (fr) * 1987-08-31 1989-03-08 Norsk Hydro A/S Conteneur souple avec des boucles de soulèvement
US4944604A (en) * 1987-04-24 1990-07-31 Norsk Hydro A.S. Flexible container comprising several lifting means
AU617742B2 (en) * 1988-01-15 1991-12-05 British Technology Group Limited Single-use syringe
US5222812A (en) * 1990-09-11 1993-06-29 Cuddy Christopher C Bulk containers
GB2366758A (en) * 2000-08-07 2002-03-20 Dorton Packaging Ltd Extensions of material from a bag body, such as bulk material bag, are folded and joined, eg. stiched, to form handles

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4136723A (en) * 1976-06-28 1979-01-30 Norsk Hydro A.S. Flexible container for transportation and storage of bulk material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4136723A (en) * 1976-06-28 1979-01-30 Norsk Hydro A.S. Flexible container for transportation and storage of bulk material

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0106256A1 (fr) * 1982-10-12 1984-04-25 Unilever N.V. Sac en matière plastique
US4781470A (en) * 1984-12-21 1988-11-01 Norsk Hydro A.S. Flexible container with separate lifting area
US4944604A (en) * 1987-04-24 1990-07-31 Norsk Hydro A.S. Flexible container comprising several lifting means
EP0306253A1 (fr) * 1987-08-31 1989-03-08 Norsk Hydro A/S Conteneur souple avec des boucles de soulèvement
US4925317A (en) * 1987-08-31 1990-05-15 Norsk Hydro A.S. Flexible container having improved lifting loops
AU617352B2 (en) * 1987-08-31 1991-11-28 Norsk Hydro A.S Flexible container having improved lifting loops
AU617742B2 (en) * 1988-01-15 1991-12-05 British Technology Group Limited Single-use syringe
US5222812A (en) * 1990-09-11 1993-06-29 Cuddy Christopher C Bulk containers
US5328267A (en) * 1990-09-11 1994-07-12 Cuddy Christopher C Bulk containers
GB2366758A (en) * 2000-08-07 2002-03-20 Dorton Packaging Ltd Extensions of material from a bag body, such as bulk material bag, are folded and joined, eg. stiched, to form handles

Also Published As

Publication number Publication date
RO82238A (fr) 1984-06-21
PL232928A1 (fr) 1982-03-29
NO812819L (no) 1982-03-11
FI60175B (fi) 1981-08-31
PL128863B1 (en) 1984-03-31
NO159370B (no) 1988-09-12
CS226033B2 (en) 1984-03-19
BG43525A3 (en) 1988-06-15
YU217881A (en) 1983-06-30
ATE17696T1 (de) 1986-02-15
FI60175C (fi) 1981-12-10
HU187358B (en) 1985-12-28
DE3173626D1 (en) 1986-03-13
EP0047389B1 (fr) 1986-01-29
RO82238B (ro) 1984-08-30
DD201660A5 (de) 1983-08-03
NO159370C (no) 1988-12-21
YU42250B (en) 1988-06-30

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