EP0026288B1 - Flexible container for transport and storage of bulk goods - Google Patents

Flexible container for transport and storage of bulk goods Download PDF

Info

Publication number
EP0026288B1
EP0026288B1 EP80104363A EP80104363A EP0026288B1 EP 0026288 B1 EP0026288 B1 EP 0026288B1 EP 80104363 A EP80104363 A EP 80104363A EP 80104363 A EP80104363 A EP 80104363A EP 0026288 B1 EP0026288 B1 EP 0026288B1
Authority
EP
European Patent Office
Prior art keywords
flap
container
parts
connecting seams
jacket
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
Application number
EP80104363A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0026288A1 (en
Inventor
Erkki Koskinen
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 AT80104363T priority Critical patent/ATE12753T1/de
Publication of EP0026288A1 publication Critical patent/EP0026288A1/en
Application granted granted Critical
Publication of EP0026288B1 publication Critical patent/EP0026288B1/en
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 transport and storage of bulk goods, comprising a jacket and bottom and a filling aperture, said container being liftable by its upper end, and the bottom of the container being formed of flap-like parts which have been connected to each other by connecting seams.
  • a flexible transport and storage container for bulk goods is preferably provided with an inner bag consisting of impermeable material and composed substantially of one piece of material having in its upper part lifting loops and in the centre a filling aperture.
  • the bottom part of the container is composed of not less than four flaps of equal size two and two, constituting direct elongated extensions of the container's jacket and which have been joined two and two at the lower margin so that the connecting lines intersect in one point.
  • Similar large-size bags are also disclosed by the Swiss Patent No. 362,970 and the German Patent No. 1,126,795.
  • the object of the invention is to achieve an improvement in flexible containers of prior art intended for transport and storage of bulk goods.
  • the more detailed object of the invention is: to provide a flexible container of which the bottom structure in reliable manner withstands all those major stresses which may act on the bottom of the container under practical conditions.
  • the bottom withstands with positive reliability all those stresses which may act on the bottom of the container in conditions of practice, because the substantially central area of the container's bottom presents no connecting seams at all which would detract from the strength. Furthermore, the advantageous bottom structure of the invention has been achieved in a comparatively simple way and in one that is favourable with a view to manufacturing techniques.
  • the bottom design of the invention may be equally applied to containers provided in their upper part with lifting loops and to those containers which have no lifting loops. Such so-called open bags are sealed at the filling aperture, and an open bag may be lifted e.g. with a suitable lifting hook.
  • the flexible container 10 is formed of a blank 11 consisting of one piece of material and which is first folded double along the centre-line 13. A cut has been made in the blank 11 for the filling aperture 12. In order to form the jacket, the lateral margins are connected by seams 14. The blank 11 has furthermore been provided with cuts 15, which define the flap-like parts 16, 17, 18 and 19. In Fig. 1, the flap-like parts 16-19 have been indicated with hatching for greater lucidity.
  • the flexible container 10 of Fig. 2 is produced from the blank 11 as shown in Fig. 1 by folding the flap-like parts 16 and 19 to overlap and by connecting the lower margin of the flap-like part 16 to the upper margin of the flap-like part 19 by a connecting seam 20.
  • the flap-like parts 17 and 18 are folded to overlap and the lower margin of the flap-like part 17 is connected to the upper margin of the flap-like part 18 with the connecting seam 21.
  • a double bottom structure is formed, where the connecting seams 20 and 21 are located at a substantial distance from the central area of the container bottom.
  • the connecting seams 20 and 21 intersect at one point close to a given corner of the container bottom.
  • the upper margin of the flap-like part 16 may be connected with the lower margin of the flap-like part 19 by another connecting seam 20 and, similarly, the upper margin of the flap-like part 17 with the lower margin of the flap-like part 18 by another connecting seam 21, whereby then the bottom of the container presents four connecting seams, whereof the connecting seams 20 are mutually substantially parallel and similarly the connecting seams 21 are mutually substantially parallel.
  • the connecting seams 20 and 21 intersect at four points in the immediate vicinity of each corner of the container bottom, as depicted in Fig. 3.
  • the flexible container is formed of a hose-like blank, of which the upper part 42 constitutes the filling aperture of the container.
  • a container of this type may be closed or sealed at the filling aperture 42 e.g. with the aid of a rope 42a.
  • a container of this type may be attached for lifting e.g. to a suitable lifting hook.
  • cuts 45 On the lower end of the hose-like blank, cuts 45 have been made which define the flap-like parts 46, 47, 48, 49.
  • the flap-like parts 46, 49 may be connected together either in the way shown in Fig. 2 or in that of Fig. 3, whereby the container will as its bottom have the bottom structure of Fig. 2 or Fig. 3, respectively.
  • the bottom of the container has been formed of three flap-like parts 51, 52, 53 having a length substantially less than the length of the container bottom and one flap-like part 54 having a length substantially equal to that of the container bottom.
  • the flap-like parts 51-54 are direct elongated extensions of the container jacket.
  • the opposite flap-like parts 52 and 53 are mutually connected by the aid of the flap-like part 51 by making the connecting seam 55 run close to the lower margin of the flap-like part 51.
  • the long flap-like part 54 is folded over the flap-like parts 51-53 and the margins of the flap-like parts 52 and 53 which are still free are connected to the flap-like part 54 by the connecting seams 56 and 57.
  • the connecting seams 55, 56 and 57 will hereby intersect at two points.
  • the flap-like part 51 may be connected by its lower margin to the lower margin of the flap-like part 54 with a connecting seam.
  • Fig. 5b is otherwise as that of Fig. 5a, except that in this embodiment the opposite flap-like parts 52 and 53 are connected together with the aid of the flap-like part 51 in that the two corners which the flap-like parts 51, 52 and 53 have in common are connected by mutually substantially parallel short connecting seams 58. Thereafter, the flap-like part 51 is folded over the flap-like parts 51-53 and the remaining part of the flap-like parts 51, 52 and 53 is connected to the flap-like part 54 with the aid of the connecting seams 59.
  • the connecting seams 58 and 59 do not intersect at any point.
  • the bottom of the flexible container is advantageously formed of four flap-like parts 61, 62, 63, 64 with a length substantially less than the length of the bottom and which are direct elongated extensions of the container's jacket.
  • a detached flap-like part having substantially the size of the container bottom.
  • the separate flap-like part 65 is connected to the flap-like parts 61-64 with the aid of the connecting seam 66, which runs in the immediate vicinity of the outer margins of the container's bottom, whereby the connecting seam 66 is advantageously an uninterrupted connecting seam with no intersecting connecting seams.
  • Fig. 6b is substantially the same as that of Fig. 6a, but in this embodiment the separate flap-like part 65 has been connected to the flap-like parts 61-64 by mutually substantially parallel seams 67 and similarly mutually substantially parallel seams 68, the seams 67 and 68 intersecting at four points.
  • the connecting seams 67 and 68 may naturally abo run so that they intersect e.g. at one, two or three points.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Table Devices Or Equipment (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
EP80104363A 1979-09-28 1980-07-23 Flexible container for transport and storage of bulk goods Expired EP0026288B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80104363T ATE12753T1 (de) 1979-09-28 1980-07-23 Flexibler behaelter fuer den transport und die lagerung von schuettguetern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI793030 1979-09-28
FI793030A FI57382C (fi) 1979-09-28 1979-09-28 Flexibel behaollare foer transport och lagring av massagods

Publications (2)

Publication Number Publication Date
EP0026288A1 EP0026288A1 (en) 1981-04-08
EP0026288B1 true EP0026288B1 (en) 1985-04-17

Family

ID=8512914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104363A Expired EP0026288B1 (en) 1979-09-28 1980-07-23 Flexible container for transport and storage of bulk goods

Country Status (6)

Country Link
EP (1) EP0026288B1 (da)
AT (1) ATE12753T1 (da)
DE (1) DE3070507D1 (da)
DK (1) DK156554C (da)
FI (1) FI57382C (da)
NO (1) NO802855L (da)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2517280A1 (fr) * 1981-12-01 1983-06-03 Boussac Saint Freres Bsf Conteneur souple a double fond plat, son procede de fabrication et application de ce procede
NO152870C (no) * 1983-09-01 1985-12-04 Norsk Hydro As Storsekk med traktformet bunn.
FI68590C (fi) * 1984-03-15 1985-10-10 Rosenlew Ab Oy W Flexibel behaollare foer transport och lagring av massagods
NO161111C (no) * 1987-04-24 1989-07-05 Norsk Hydro As Storsekk med i det minste to integrerte loeftestropper.
NO883257L (no) * 1987-08-31 1989-03-01 Norsk Hydro As Storsekk med forbedret loeftestropp.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1411571A1 (de) * 1961-09-23 1968-10-17 Hans Lissner Sack -oder beutelartiger Behaelter fuer Fuellgueter aller Art sowie Verfahren zu deren Herstellung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH362970A (de) * 1958-06-10 1962-06-30 Woll Erb Ag Verfahren zur Herstellung eines Beutels mit Zugschnurverschluss und danach hergestellter Beutel
NO138134C (no) * 1976-06-28 1978-07-12 Norsk Hydro As Fleksibel beholder for transport og lagring av massegods, samt fremgangsmaate for dens fremstilling
NO143399C (no) * 1978-06-01 1981-02-04 Norsk Hydro As Forsterket fleksibel beholder.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1411571A1 (de) * 1961-09-23 1968-10-17 Hans Lissner Sack -oder beutelartiger Behaelter fuer Fuellgueter aller Art sowie Verfahren zu deren Herstellung

Also Published As

Publication number Publication date
ATE12753T1 (de) 1985-05-15
DK156554C (da) 1990-02-05
DK330780A (da) 1981-03-29
FI57382C (fi) 1980-08-11
DE3070507D1 (en) 1985-05-23
EP0026288A1 (en) 1981-04-08
FI57382B (fi) 1980-04-30
DK156554B (da) 1989-09-11
NO802855L (no) 1981-03-30

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