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]
  • B65D88/1668—Flexible intermediate bulk containers [FIBC] closures for top or bottom openings

Definitions

• the invention relates to a flexible container made of textile fabric, which has a jacket made of at least one fabric web.
• Such transport containers made of textile fabric are known and are used to accommodate large-volume loads that can have weights of up to several tons. In technical terms they are known as “big bag” or “FIBC” (for flexible intermediate bulk containers).
• the FIBCs which have become known to date mostly consist of a jacket which comprises four jacket surfaces sewn to one another, and a base and a lid which likewise consist of textile fabric.
• the individual textile webs are sewn on the edges in a conventional manner, the two abutting textile webs being placed one on top of the other and sewn on the double edges, if necessary also overlapped, with conventional sewing machines to form an edge seam by chain stitching.
• FIBCs should on the one hand be as cheap and simple as possible to manufacture, but on the other hand should meet the required static requirements.
• the fabric thickness should be as low as possible for reasons of cost, weight and storage.
• a FIBC for a load of 1,500 kg can consist of a fabric with 200 g / m 2 .
• the weak points of the FIBC are in the seams. For certain purposes, it is necessary that the
• FIBC remain leakproof even during drop tests and do not Zen.
• Such a drop test can be given, for example, with a full load by being dropped from a height of 1.20 m. Conventional seams tear open so that the goods come out.
• the FIBC is characterized in that the jacket is formed from at least one flat textile web and has at least one longitudinal seam which is flat-stitched. Further features can be found in the drawings and the description below and in the patent claims.
• Fig.l shows a conventional FIBC with conventional seams to form the longitudinal seams.
• 2 shows a cross section through the seam region of the jacket.
• 3 shows in cross section an FIBC according to the invention along the line III-III in FIG. 4 and FIG. 4 in an exploded position, the individual parts of a complete FIBC according to the invention.
• 5 shows the oblique view of a further exemplary embodiment.
• the known FIBC according to Fig.l has a jacket 1 of four jacket surfaces 2, which consist of individual fabric sheets.
• the longitudinal seams 3 are flag-shaped, as shown in more detail in cross-section in FIG. From the two lateral surfaces 2 there are flags 4 which are sewn by a seam 3 from one or more individual seams 5.
• Holding straps 12 are sewn onto the flag-like seams 3, which are used to lift and transport the FIBC.
• Fig.l only three of the usually provided four loops are shown.
• the FIBC is closed at the top and bottom by a cover 13 and a base 15 with filler neck 14 and outlet neck 16.
• the filling material creates a strong pressure in the direction of arrows 6 (see FIG. 2) and the individual seams 5 or all seams 3 are torn open.
• This type of seam is torn open by favoring that the lateral surfaces 2 are pulled apart and only the inner individual seam 5 is loaded in the process, so that all the individual seams are blown in sequence and the entire seam 3 is opened.
• FIG. 3 shows the FIBC according to the invention, which is flat-sewn.
• the webs are placed on top of one another in an overlapping manner and sewn by means of "ar-down sewing".
• a special sewing machine construction is necessary, which allows large pieces of fabric to be sewn flat with chain stitching in this way.
• the flat web pieces 7, 8, 9, 10 are sewn at the overlapping points with the seams 11, which can also be formed from several individual seams.
• the necessary straps 12 can be easily sewn.
• the parts 13 to 16 are usually also made of textile fabric.
• the sockets 14 and 16 can be tied with the bands 17, 18.
• a preferred feature of seam formation is "also in that a chain stitch seam is possible.
• a cheap sewing thread is suitable for this seam formation and for the lower thread large coils can be provided. This is a significant advantage over the previously used for flat seams on tarpaulins lock stitch, the requires an expensive yarn and the bobbin thread has to be accommodated in relatively small boats which have to be changed continuously.
• the seams form a continuous reinforcement path in the jacket.
• the carrying straps or loops 12 can thus simply be sewn or sewn onto these seam areas. Extra reinforcement straps are usually not necessary.
• the individual flat webs can be easily printed before sewing, and coating is possible on the inside with conventional coating machines.
• a fabric with a relatively low basis weight can be used, as the tensile strength of the fabric allows.
• all the individual seams of the respective seam are subjected to tensile stress evenly, so that the individual seams hold at the same time and the load on the fabric in the seam region is much better distributed.
• the jacket 1 consists of a single fabric web that is flat-sewn along a single seam 21. At the top, the fabric web is combined from two sides and forms a single carrying loop 22, on which the full weight of the filled container can hang.
• the bottom 23 can be connected to the casing 1 with a conventional edge seam.
• a sewn-on pocket for documents is designated by 24.
• the container can be filled through the slots 25.
• the bands 26 are used for closing.
• This big bag with only one seam has the strength of a container made of round fabric without having its disadvantages.
• the processing and processing of the fabric, such as coating is much easier with a flat web.
• the seam 21 can also lie at a different location from the one shown, e.g. on the side on which the fabric web extends towards the carrying loop 22. In this case, the seam 21 preferably also extends up to the carrying loop. Furthermore, more seams can be provided, e.g. two seams on opposite sides of the single-point sack.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Bag Frames (AREA)
• Packages (AREA)
• Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
• Professional, Industrial, Or Sporting Protective Garments (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=3535027

Family Applications (1)

Country Status (7)

Cited By (3)

Families Citing this family (2)

Citations (5)

Family Cites Families (2)

• 1991
  • 1991-12-12 AT AT0247691A patent/AT401501B/de not_active IP Right Cessation
• 1992
  • 1992-10-13 DE DE9213812U patent/DE9213812U1/de not_active Expired - Lifetime
  • 1992-12-10 WO PCT/AT1992/000165 patent/WO1993012016A1/de not_active Ceased
  • 1992-12-10 FI FI942742A patent/FI942742A0/fi not_active Application Discontinuation
  • 1992-12-10 AT AT92924485T patent/ATE124370T1/de not_active IP Right Cessation
  • 1992-12-10 DE DE59202762T patent/DE59202762D1/de not_active Expired - Fee Related
  • 1992-12-10 AU AU30762/92A patent/AU3076292A/en not_active Abandoned
  • 1992-12-10 EP EP92924485A patent/EP0615513B1/de not_active Expired - Lifetime
• 1994
  • 1994-06-07 NO NO942109A patent/NO303905B1/no unknown

Patent Citations (5)

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