EP0041586B1 - Flexibler Behälter für Transport und Lagerung von Schüttgut - Google Patents

Flexibler Behälter für Transport und Lagerung von Schüttgut Download PDF

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Publication number
EP0041586B1
EP0041586B1 EP80200521A EP80200521A EP0041586B1 EP 0041586 B1 EP0041586 B1 EP 0041586B1 EP 80200521 A EP80200521 A EP 80200521A EP 80200521 A EP80200521 A EP 80200521A EP 0041586 B1 EP0041586 B1 EP 0041586B1
Authority
EP
European Patent Office
Prior art keywords
container
walls
flexible container
openings
cylindrical member
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
EP80200521A
Other languages
English (en)
French (fr)
Other versions
EP0041586A1 (de
Inventor
Hans Bjorke
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.)
Norsk Hydro ASA
Original Assignee
Norsk Hydro ASA
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 Norsk Hydro ASA filed Critical Norsk Hydro ASA
Priority to EP80200521A priority Critical patent/EP0041586B1/de
Priority to DE8080200521T priority patent/DE3069657D1/de
Priority to AT80200521T priority patent/ATE10354T1/de
Publication of EP0041586A1 publication Critical patent/EP0041586A1/de
Application granted granted Critical
Publication of EP0041586B1 publication Critical patent/EP0041586B1/de
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]
    • B65D88/1618—Flexible intermediate bulk containers [FIBC] double-walled or with linings
    • 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 relates to a flexible container for transportation and storage of bulk material, especially free-flowing powdery material, said container comprising lifting loops which are an integral part of the walls.
  • a container is disclosed in US-A-4,136,723 and like most of the containers used today, is made from at least one piece of woven fabric sewn together to form the container.
  • One embodiment of the containers according to US-A-4,136,723, is a container made from one piece of material folded double and sewn together to form a single-walled container with integral lifting loops.
  • the said container has a square base, and the bottom is made from at least four separate flaps each of which have free lateral edges and which are direct extensions of the container walls. The flaps are joined together in pairs to form joints that cross at a single point.
  • Such a container usually requires an inner bag of impervious material to avoid loss of the container's content through the woven material of the container itself.
  • Known in the art is also a double-walled container made from a cylindrical member.
  • this container has upper and lower closure means respectively, attached to the body at its upper and lower ends for at least partially closing the end openings.
  • This container has bery complicated bottom constructions which involve a great deal of labour and are very expensive.
  • the upper opening of the container necessitates in most cases an extra lid since the upper binding cords only partially close the upper opening.
  • the lifting loops of the container comprise a plurality of endless loop-shaped cords attached to a binding cord inserted in the folded back end of the cylindrical body which forms the container.
  • Another object of the invention is to provide a particularly strong container with the minimum use of material and labour.
  • the idea is that it should be economical to discard the container after it has been used only once, and that it should be so versatile in use that it can be employed for such different materials as dangerous materials and food stuffs.
  • the container is a double-walled container formed by folding one half of a closed ended cylindrical member into the other half of said member along its centre line, there being provided at least two openings in the outer wall forming half, extending longitudinally downwards from said centre line to a sufficient length to form lifting loops which are an integral part of both the inner and the outer walls of the container and also allowing lashing of the container's inner walls.
  • the container according to the invention are considered more practical and less expensive.
  • the upper container opening can be closed easily, and there will also be formed integrated lifting loops suitable for lifting the container by hooks or forks.
  • the said openings being parallel to the longitudinal axis of the container, will not weaken the container and lifting loops thus formed proved to be very strong.
  • the openings start at the very top of the outer container wall and extend downward to a length of about 1/5-1/8, preferably of about one sixth of the container's circumference.
  • the width of each lifting loop will be one half of the container's circumference.
  • the lower openings of the container can be closed in several ways to form the container bottom.
  • both the inner and the outer walls should be closed either before or after folding the cylindrical member back along itself when forming the double-walled container.
  • the inner and outer walls may be closed in different ways though.
  • the simplest method of closing to sew a single seam along the lower openings of each of the two container walls.
  • a strong bottom can be made by joining flaps which are direct extensions of the container walls and thereby forming a bottom being at least a double one. Such bottoms can be formed by sewing or by glueing laminated flaps together, thus obtaining a square base.
  • the invention also comprises further features which are of special importance when the container is being filled.
  • two short seams can be made defining the filling opening of the container.
  • This opening can be of the same size as the spout used to fill material into the container.
  • a ring preferably of flexible material, can be inserted around the inner walls. The said ring would be about the same size as the filling spout. This ring will also be advantageous when closing the upper opening of the container.
  • the container can also be equipped with a discharge spout which is an extension of the inner walls and thereby allowing discharge of the container without contaminating its content.
  • the double-walled container can be made from woven fabric, and the cylindrical member is preferably made by circular weaving. At least the inner walls may be laminated to form an impervious inner container.
  • the container may also be equipped with an inner bag of for instance polyethylene.
  • Fig. 1 shows the deflated cylindrical member having a length which is twice that of the double-walled container and consisting of section 1 forming the outer walls and section 2 forming the inner walls.
  • the container is formed by folding section 1 back along section 2 along the central line 5 and closing the two openings of the sections at 6.
  • At least two openings 4, are made in section 1, extending downwards from the folding line 5 to a length of about W/3, W being the width of the deflated piece of material.
  • the length of the openings 4 is not very critical, but it has been found that a length of W/3 is optimal using two openings 4 which are situated diametrically or right across each other.
  • Fig. 2 shows the double-walled container where section 2 forms the inner walls and section 1 the outer walls. Both of the sections are closed whereby a double bottom is formed.
  • the container's filling opening 9 is shown in a closed state by closing means 8.
  • the inflated cylindrical member shown in Fig. 3 has a total length of L and a width W in the inflated state. Including the length of the bottom flaps 10, each of the sections 1 and 2 has a length of L/2.
  • section 2 there is provided two short seams 11, extending downwards from the folding line 5.
  • a ring 8 (Fig. 2) of rubber or the like, can be inserted around the seams 11 before section 1 is folded back along section 2. This ring 8 is used to fasten the containers to the filling spout during filling, and it will also make it easier to close the filled container.
  • the openings 4 which form the lifting loops 7 has a length of W/3.
  • FIG. 3 section 1 and 2 shown with two equally large flaps 10.
  • Each of the sections 1 and 2 can, however, be equipped with from 2-4 flaps of the same size as that shown in Fig. 3.
  • the number of flaps to be chosen depends on the strengh required for the container's bottom.
  • the most preferred size for the flaps 10 is W/2 times W/2, which gives the container square bottom.
  • the flaps can be sewn together or laminated and glued.
  • flaps a and b are joined to form an outer double bottom and flaps a' and b' form an inner double bottom.
  • Extra seams may also be formed at the edges 12 along the lower parts of section 1 and 2.
  • the sections 1 and 2 can be reinforced at the edges 12 to give them a denser warp and thereby forming a fastening strip for the seams.
  • the botttom can also be formed by first placing a and a' together and sewing at 12, and then b and b' which also are sewn at 12 and thus forming a square base.
  • Fig. 4 shows the double-walled container before lashing.
  • the filling opening 9 defined by the seams 11 is clearly shown on the upper part of the container.
  • the lifting loops are shown before being made ready for lifting by hooks or forks.
  • At the bottom is shown a circular opening through which the discharge spout can be drawn.
  • the reinforced edges 12 for the bottom seams clearly demonstrate the container's square base.
  • Containers according to the enclosed claims and shown in Fig. 1-4 have several advantages over previously known containers. First of all they have a new type of integrated lifting loops which are an integral part of both the inner and the outer walls of the double-walled container. These loops are very strong as they comprise all the longitudinal threads of both the inner and outer walls. This means that the loops comprises about twice as many longitudinal threads as the loops of the container of the same size and being according to US patent No. 4,136,723.
  • Another advantage of the present container is that its upper opening is completely closed when the loops are made ready for use by simple lashing as shown in Fig. 2. This is a great improvement compared with the container according to British patent No. 1,323,804 which also have a more complicated and expensive bottom construction.
  • the construction of the container may also comprise more than two lifting loops. By making four openings 4 in the outer walls there will be four lifting loops, and this allows the container to be hung such that its opening is square during filling.
  • the combination of the present construction and the application of a cylindrical member, preferably of round-woven material, produces several advantages. By using a discharge spout the container can be used several times. The construction also permits highly mechanized container production.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)
  • Refuse Collection And Transfer (AREA)

Claims (5)

1. Flexibler Behälter zum Transport und zur Lagerung von Schüttgut, welcher Behälter (1, 2) als einstückige Teile seiner Wände (1, 2) ausgebildete Hebeschlaufen (7) aufweist, dadurch gekennzeichnet, daß der Behälter durch Falten einer Hälfte (2) eines an einem Ende geschlossenen zylindrischen Stückes (A) entlang seiner Mittellinie (5) in die andere Hälfte (1) des Stückes (A) doppelwandig ausgebildet ist, wobei in der die Außenwand bildenden Hälfte (1) zumindest zwei Öffnungen (4) vorgesehen sind, die von der Mittellinie (5) der Länge nach über eine vorbestimmte Länge unter Bildung der Hebeschlaufen abwärts verlaufen, die einstückige Bestandteile sowohl der Innen- (2) als auch der Außenwand (1) des Behälters (1, 2) sind und ein Zusammenschnüren der Behälterinnenwände ermöglichen.
2. Flexibler Behälter nach Anspruch 1, dadurch gekennzeichnet, daß die Länge der Öffnungen (4) 1/5 bis 1/8 des Behälterumfanges beträgt.
3. Flexibler Behälter nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß an der äußersten Oberseite der Innenwände (2') zwei kurze Nähte (11) vorgesehen sind, die in einem gegenseitigen Abstand angeordnet sind und eine Füllöffnung (9) begrenzen.
4. Flexibler Behälter nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Enden (6) des zylindrischen Stückes (A) mit Hilfe von Bodenlappen (10) geschlossen sind, die unmittelbare Verlängerungen der Behälterwände sind.
5. Flexibler Behälter nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß er eine Abgabetülle aufweist, die eine Verlangerung der Innenwände (2') ist.
EP80200521A 1980-06-05 1980-06-05 Flexibler Behälter für Transport und Lagerung von Schüttgut Expired EP0041586B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP80200521A EP0041586B1 (de) 1980-06-05 1980-06-05 Flexibler Behälter für Transport und Lagerung von Schüttgut
DE8080200521T DE3069657D1 (en) 1980-06-05 1980-06-05 Flexible container for the transportation and storage of bulk material
AT80200521T ATE10354T1 (de) 1980-06-05 1980-06-05 Flexibler behaelter fuer transport und lagerung von schuettgut.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80200521A EP0041586B1 (de) 1980-06-05 1980-06-05 Flexibler Behälter für Transport und Lagerung von Schüttgut

Publications (2)

Publication Number Publication Date
EP0041586A1 EP0041586A1 (de) 1981-12-16
EP0041586B1 true EP0041586B1 (de) 1984-11-21

Family

ID=8187007

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80200521A Expired EP0041586B1 (de) 1980-06-05 1980-06-05 Flexibler Behälter für Transport und Lagerung von Schüttgut

Country Status (3)

Country Link
EP (1) EP0041586B1 (de)
AT (1) ATE10354T1 (de)
DE (1) DE3069657D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3736859A1 (de) * 1987-10-30 1989-05-18 Kielbassa Herbert Dr Ing Gewebter grosssack fuer schuettgueter

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116143B (en) * 1982-03-01 1986-05-21 Frank Nattrass Flexible bulk container
CH661701A5 (de) * 1983-11-09 1987-08-14 Imag Verlags Ag Container aus einem schlauchgewebe.
GB8622893D0 (en) * 1986-09-23 1986-10-29 Nattrass Hickey & Sons Ltd Bulk containers
DE3634337A1 (de) * 1986-10-08 1988-04-21 Dyckerhoff Ag Grosssack
NO161111C (no) * 1987-04-24 1989-07-05 Norsk Hydro As Storsekk med i det minste to integrerte loeftestropper.
NO165719C (no) * 1988-12-21 1991-04-03 Norsk Hydro As Storsekk og fremgangsmaate til dens fremstilling.
ES2049122B1 (es) * 1991-04-23 1994-11-01 Condepols Sa Metodo de fabricacion de un contenedor de material flexible para productos a granel.
EP0510262A1 (de) * 1991-04-23 1992-10-28 Condepols, S.A. Flexibler Behälter für den Transport und die Lagerung von Schüttgütern
DE9312026U1 (de) * 1993-08-12 1993-10-28 Bio-Pack Verpackungs GmbH & Co KG, 59557 Lippstadt Sackförmige Hülle für den Transportschutz von Möbeln und ähnlichen sperrigen Gütern
FR2831145B1 (fr) 2001-10-19 2004-08-27 Filtisac France Procede de fabrication d'un conteneur souple destine a recevoir des produits en vrac, et conteneur ainsi obtenu

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE204026C (de) *
US3106140A (en) * 1958-07-24 1963-10-08 Union Carbide Corp Method for forming multiwall bags
GB1323804A (en) * 1971-09-10 1973-07-18 Shinwa Kagaku Kogyo Kk Packing containers
NO138134C (no) * 1976-06-28 1978-07-12 Norsk Hydro As Fleksibel beholder for transport og lagring av massegods, samt fremgangsmaate for dens fremstilling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3736859A1 (de) * 1987-10-30 1989-05-18 Kielbassa Herbert Dr Ing Gewebter grosssack fuer schuettgueter

Also Published As

Publication number Publication date
DE3069657D1 (en) 1985-01-03
ATE10354T1 (de) 1984-12-15
EP0041586A1 (de) 1981-12-16

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