EP0234788A1 - Industrielle flexible Behälter - Google Patents
Industrielle flexible Behälter Download PDFInfo
- Publication number
- EP0234788A1 EP0234788A1 EP87301093A EP87301093A EP0234788A1 EP 0234788 A1 EP0234788 A1 EP 0234788A1 EP 87301093 A EP87301093 A EP 87301093A EP 87301093 A EP87301093 A EP 87301093A EP 0234788 A1 EP0234788 A1 EP 0234788A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- tube
- flattened
- edge
- fabric
- 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.)
- Withdrawn
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
- 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
- This invention concerns industrial containers of the kind consisting of a fabric bag adapted for suspension (e.g. from a crane hook, derrick or the like) and which serves to contain bulk material in granular, particulate, flake or like form, such as chemicals, seeds, building materials, minerals, animal feedstuffs, fertilisers and so on, in relatively large quantities, for instance a half-tonne, or a tonne.
- a fabric bag adapted for suspension (e.g. from a crane hook, derrick or the like) and which serves to contain bulk material in granular, particulate, flake or like form, such as chemicals, seeds, building materials, minerals, animal feedstuffs, fertilisers and so on, in relatively large quantities, for instance a half-tonne, or a tonne.
- bag shape for instance substantially square or rectangular when viewed in plan, by seaming together panels of tough woven fabric, the weft and warp of the fabric being, for instance, narrow plastics tape, for instance polypropylene of the order of two or three millimetres in thickness.
- regions of the fabric may be reinforced by plating or weaving with tapes which are thicker than those of the rest of the fabric, the straps or webs of the harnesses being attached, for instance, by sewing.
- An object of the present invention is to provide a method of constructing a container which is generally of the kind above discussed, but which essentially comprises tubular woven fabrics, which container is simple to manufacture and has the particular advantage that the circular wefts extend continuously between the bottom of the container and the lifting loop or loops, so that there are no joins or seams in the bottom and loops which are encompassed in or provided by the strongest parts of the fabric.
- the invention further includes, of course, a container made by the method aforesaid, which is characterised by the simplicity with which it may be carried into effect.
- the present invention provides, as a first feature, a method of making, from a woven fabric tube length, an industrial container in the form of a fabric bag adapted for suspension characterised in that it comprises, in the flattened condition of the tube length, forming a gusset by folding in or pleating one of the flattened folded edges of the tube length and thereupon seaming the flattened and gusseted tube length along each of its two open edges, so that in each case such edge is closed from its gusseted end to a position adjacent to but short of the other (non-gusseted) flattened tube edge to leave thereat openings to the interior of the container, the gusset serving, in the operative orientation of the container as the bottom thereof and the said other (non-gusseted) flattened tube edge then serving as or being available for use as suspension loop means of the container.
- the suspension loop means may simply by formed by bunching together the fabric of the said non-gusseted tube edge and, if desired, wrapping it with a fabric band or sleeve, which may, if desired, be sewn to secure it.
- the fabric of the bag may be cut or severed, parallel to the weft direction of the fabric by a short distance from the said non-gusseted edge thereby to bifurcate it and provide two side by side portions each of which is bunched and sleeved, thus providing two suspension loops on the container.
- the seaming may be achieved by sewing.
- This is preferably effected by folding over the superimposed open edges of the flattened tube length and overlocking or machine stitching with any other suitable reliable stitch which will not readily loosen or unravel.
- the folding over is conveniently effected oppositely, that is to say with one of the folded over hems lying against one outer surface of the flattened tube and the other of such folded hems lying against the other outer surface of said flattened tube. This contributes to an aesthetically acceptable product of good practical strength.
- the invention further includes, of course, as a further feature thereof, an industrial container made by the method(s) above discussed.
- a container may be differently defined by expressing it as being composed of a woven fabric tube length seamed along what would be its two open edges were it in a flattened condition so as to be closed along said edges from a gusseted end formed by folding in or pleating one flattened folded edge of the tube to a position short of the other (non-gusseted) tube edge whereby to define openings to the interior of the container, the gusset serving, in the operative orientation of the container, as the bottom thereof and the other flattened tube edge serving as or being available for use as suspension loop means of the container.
- polypropylene or like tough plastics tape made for instance by extrusion and, for example in the range of 1 to 4 mm in width and 100 to 250 tex, preferably approximately 3 mm in width and 170 tex.
- This tape is used to form both the warp and the weft in a circular loom constructed to weave a tube of diameter, for instance, of the order of 1.2 to 1.5 metres, a typical example being approximately 1.3 metres, it being understood that the weft extends circumferentially around the woven tube, and the warps extend longitudinally thereof.
- the tube issuing from the loom is flattened, and in a typical example with a 1.3 metre diameter tube, the layflat width is of the order of 2.05 metres. If not required immediately to be converted into containers, the flattened tube can be wound up as a continuous length in a roll.
- one severs, for the flattened tube an appropriate tube length which is determined by the desired capacity of the finished container.
- a tube length such as has been shown diagrammatically at 10 in Fig. 1, whose dimension in the longitudinal direction (i.e. warpwise or axially of the tube) is of the order of 140 cms.
- This flattened tube length 10 is accordingly rectangular in configuration with folded or flattened edges 12, 14 along two opposite longitudinal sides, each measuring of the order of 140 cms, and two open or cut edges 16, 18 extending across the two other opposite or transverse sides, each measuring of the order of 205 cms.
- a gusset 20 is now formed by folding in or pleating the flattened tube length 10 at the portion adjacent the folded or flattened edges 12, the gusset 20 projecting inwards of the tube length to an extent, indicated at 22 in Fig. 2, determined by the desired eventual plan dimensions of the finished container.
- a typical example is, for instance 45 cm.
- Gussetting so as to achieve the gusset 20 may be effected as the tube comes off the loom and is being flattened, and may be effected 'double' that is to say to produce respective gussets 20 and 24 along the two folded or flattened edges 12, 14, as shown in Fig. 2, e.g. by appropriate shaping tools (not shown) past which the woven tube progresses, with the gusset 24 subsequently being pulled out or folded out again at a suitable subsequent stage in the steps of making the container, as will be understood from the following description.
- the tube length, with at least the gusset 20 folded in with its respective folded or flattened edge 12, is now seamed along its two open or cut edges, that is to say along the above-discussed transverse sides, 16, 18. This is done, along each edge 16, 18, by folding over the coinciding fabric edges along a respective marginal or hem portion 26, 28 of width of the order of 2 to 3 cms, and overlocking or otherwise machine sewing, using secure stitching as at 30, 32 which will not readily unravel, to hem the portions 26, 28 to the adjacent tube fabric.
- the folding over of the two marginal or hem portions 26 and 28 is effected in opposite directions so that they lie against the opposite faces of the flattened tube length 10.
- the seaming is effected in each case so as to close the respective open edge 16, 18 from the end of the tube length including the gusset 20 to a position spaced from the folded or flattened tube edge 14 by an extent corresponding substantially to the extent of the gusset 24, thereby leaving non-seamed portions 34, 36 (Fig. 3) for forming openings 33, 40 (Fig. 4) to the interior of the seamed-up tube length, of approximately 45 cms in length along the two opposite sides 16 and 18 of the assembly, remote from the gusset 20.
- the seaming can be effected whilst the gusset 24 is maintained in its folded-in disposition as shown in this figure, the stitching 30 and 32 being terminated just prior to reaching the folded edge 14 of the gusset 24.
- the seaming can be effected with stitching starting at the ends corresponding to the gusset 20 and running off the tube length just prior to the gusset 24 which is subsequently pulled out to achieve the configuration of Fig. 4.
- the seaming can be effected with only the gusset 20 in place, the gusset 24 having been unfolded or pulled out prior to the seaming.
- the container 46 can, of course, be filled by way of the openings 38, 40 to the interior, which openings 38, 40 are present at each side of the suspension loop 44.
- the container is very simple to make as it requires only the formation of the two seams 30 and 32 and the application of the sleeve 42, which is optional, to the suspension loop 44.
- the configuration of the bottom of the container 46 when considered in plan, is determined by the extent 22 by which the gusset 20 is folded into the respective side of the tube 10 prior to seaming, In general the amount of fold-in of the gusset will normally be selected to give a container whose configuration is approximately square in plan, as has been shown in Fig. 6, but of course oblong or rectangular configurations are possible. In spite of its simplicity of manufacture, the container 46 is particularly strong and reliable in use (e.g.
- the endless weft tapes employed in the weaving of the fabric of the tube 10 extend in continuous runs through the suspension loop 44, the sides of the container 46, and the bottom thereof, so that in the lifting direction there are no discontinuities in the tapes from which the container is made.
- the seams 30, 32 extend vertically at two opposite locations in the sidewalls of the container.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Woven Fabrics (AREA)
- Bag Frames (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8603966 | 1986-02-18 | ||
GB868603966A GB8603966D0 (en) | 1986-02-18 | 1986-02-18 | Industrial containers |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0234788A1 true EP0234788A1 (de) | 1987-09-02 |
Family
ID=10593247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87301093A Withdrawn EP0234788A1 (de) | 1986-02-18 | 1987-02-09 | Industrielle flexible Behälter |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0234788A1 (de) |
GB (2) | GB8603966D0 (de) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0288079A2 (de) * | 1987-04-24 | 1988-10-26 | Norsk Hydro A/S | Biegsamer Behälter mit Verschlussmitteln |
WO1989000957A1 (en) * | 1987-07-31 | 1989-02-09 | Sune Carlsson | A bulk sack |
EP0332333A1 (de) * | 1988-03-04 | 1989-09-13 | Mulox Ibc Limited | Containersack |
EP0382951A1 (de) * | 1989-02-06 | 1990-08-22 | Condepols, S.A. | Verfahren für die Herstellung eines flexiblen Behälters zum Fördern und Lagern von Schüttgut |
DE4105930A1 (de) * | 1991-02-26 | 1992-08-27 | Huesker Synthetic Gmbh & Co | Grossvolumiger sack zum auf- und abbau von schutzwaellen |
FR2675736A1 (fr) * | 1991-04-23 | 1992-10-30 | Condepols Sa | Methode de confection d'une anse de suspension pour conteneurs flexibles de produits en vrac. |
CN106628559A (zh) * | 2016-12-30 | 2017-05-10 | 温州正钻机械有限公司 | 省料平整式无纺布方底立体袋 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB356489A (en) * | 1930-09-15 | 1931-09-10 | William Harry Short | Improvements relating to bags for coals and the like |
GB1581437A (en) * | 1977-09-06 | 1980-12-17 | Lolift Uk Ltd | Containers |
GB2078199A (en) * | 1980-06-10 | 1982-01-06 | Nyborg Plast | Sack |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3580486A (en) * | 1969-03-19 | 1971-05-25 | Emanuel Kugler | Plastic bag with integral handle |
-
1986
- 1986-02-18 GB GB868603966A patent/GB8603966D0/en active Pending
-
1987
- 1987-02-06 GB GB08702658A patent/GB2186861A/en not_active Withdrawn
- 1987-02-09 EP EP87301093A patent/EP0234788A1/de not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB356489A (en) * | 1930-09-15 | 1931-09-10 | William Harry Short | Improvements relating to bags for coals and the like |
GB1581437A (en) * | 1977-09-06 | 1980-12-17 | Lolift Uk Ltd | Containers |
GB2078199A (en) * | 1980-06-10 | 1982-01-06 | Nyborg Plast | Sack |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0288079A2 (de) * | 1987-04-24 | 1988-10-26 | Norsk Hydro A/S | Biegsamer Behälter mit Verschlussmitteln |
EP0288079A3 (de) * | 1987-04-24 | 1989-08-09 | Norsk Hydro A/S | Biegsamer Behälter mit Verschlussmitteln |
WO1989000957A1 (en) * | 1987-07-31 | 1989-02-09 | Sune Carlsson | A bulk sack |
EP0332333A1 (de) * | 1988-03-04 | 1989-09-13 | Mulox Ibc Limited | Containersack |
EP0382951A1 (de) * | 1989-02-06 | 1990-08-22 | Condepols, S.A. | Verfahren für die Herstellung eines flexiblen Behälters zum Fördern und Lagern von Schüttgut |
DE4105930A1 (de) * | 1991-02-26 | 1992-08-27 | Huesker Synthetic Gmbh & Co | Grossvolumiger sack zum auf- und abbau von schutzwaellen |
FR2675736A1 (fr) * | 1991-04-23 | 1992-10-30 | Condepols Sa | Methode de confection d'une anse de suspension pour conteneurs flexibles de produits en vrac. |
ES2049121A1 (es) * | 1991-04-23 | 1994-04-01 | Condepols Sa | Metodo de confeccion de un asa de suspension en contenedores flexibles de productos a granel. |
CN106628559A (zh) * | 2016-12-30 | 2017-05-10 | 温州正钻机械有限公司 | 省料平整式无纺布方底立体袋 |
Also Published As
Publication number | Publication date |
---|---|
GB2186861A (en) | 1987-08-26 |
GB8603966D0 (en) | 1986-03-26 |
GB8702658D0 (en) | 1987-03-11 |
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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: A1 Designated state(s): AT BE CH DE ES FR GR IT LI LU NL SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19880303 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: ROONEY, GRANT SIEVEWRIGHT |