AT403155B - TRANSPORT BAG - Google Patents
TRANSPORT BAG Download PDFInfo
- Publication number
- AT403155B AT403155B AT0088095A AT88095A AT403155B AT 403155 B AT403155 B AT 403155B AT 0088095 A AT0088095 A AT 0088095A AT 88095 A AT88095 A AT 88095A AT 403155 B AT403155 B AT 403155B
- Authority
- AT
- Austria
- Prior art keywords
- seam
- sealing tape
- sewn
- fabric
- sewing
- Prior art date
Links
- 238000007789 sealing Methods 0.000 claims description 41
- 239000004744 fabric Substances 0.000 claims description 30
- 238000009958 sewing Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 6
- 239000013013 elastic material Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 230000000295 complement effect Effects 0.000 claims 1
- -1 Polypropylene Polymers 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000006163 transport media Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D27/00—Details of garments or of their making
- A41D27/24—Hems; Seams
-
- 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]
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
- D05B1/26—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making fluid-tight seams
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Sewing Machines And Sewing (AREA)
Description
AT 403 155 BAT 403 155 B
Die Erfindung betrifft einen Transportsack, der durch Vernähen von einer oder mehreren Gewebebahnen mittels Kantnähten gebildet ist. Weiters betrifft die Erfindung ein Verfahren zum Nähen des Transportsackes und die Vorrichtung dafür. Transportsäcke der eingangs genannten Art werden auch big bag genannt.The invention relates to a transport bag which is formed by sewing one or more fabric webs by means of edge seams. The invention further relates to a method for sewing the transport bag and the device therefor. Transport bags of the type mentioned at the beginning are also called big bags.
Transportsäcke dieser Art sind ein billiges und häufig verwendetes Transportmedium für schüttfähige Güter. Ein Sack kann Lasten bis zu mehreren Tonnen aufnehmen.Transport bags of this type are a cheap and frequently used transport medium for bulk goods. A sack can hold loads of up to several tons.
Bei staubigem Schüttgut ist es erforderlich, den Transportsack so dicht wie möglich auszubilden. Als Material für den Transportsack findet meistens beschichtetes Gewebe Verwendung, z.B. Polypropylengewebebahnen mit Polypropylenbeschichtung oder Polyäthylenbahnen mit Polyäthylenbeschichtung. Bei solcherart dicht ausgebildeten Transportsäcken entsteht beim Befüllen das Problem, daß die im Sack befindliche Luft unter hohem Druck und mit großer Geschwindigkeit entweichen muß, insbesondere bei schnellen Befüllvorgängen. Der hohe Druck und die hohe Strömgeschwindigkeit bewirken, daß schon feine Löcher den Staubaustritt erlauben. Eine Schwachstelle ist diesbezüglich insbesondere die Naht, mit der die verschiedenen Gewebebahnen zur Bildung des Transportsackes vernäht sind. Der hohe Befüllungsdruck und die Zugbelastung der Wände an den Nähten führen zu einem Aufweiten der Nählöcher, die feine Stäube wie Düsen austreten lassen.In the case of dusty bulk goods, it is necessary to make the transport bag as tight as possible. Coated fabric is usually used as the material for the transport bag, e.g. Polypropylene fabric sheets with polypropylene coating or polyethylene sheets with polyethylene coating. In such tightly designed transport bags, the problem arises during filling that the air in the bag has to escape under high pressure and at high speed, especially during fast filling processes. The high pressure and high flow velocity mean that even fine holes allow dust to escape. A weak point in this regard is in particular the seam with which the various fabric webs are sewn to form the transport bag. The high filling pressure and the tensile load on the walls at the seams widen the sewing holes, which allow fine dusts such as nozzles to escape.
Um diesem Nachteil abzuhelfen, ist es bereits bekannt, den Nahtbereich dadurch abzudichten, daß um die zu vernähende Kante ein Stoffband oder Filzband herumgeschlagen und außen mit den Gewebebahnen vernäht wird. Allerdings ist diese Lösung sehr teuer, da das Band relativ breit sein muß und teuer ist. Auch der arbeitsmäßige Aufwand ist hoch.In order to remedy this disadvantage, it is already known to seal the seam area in that a fabric band or felt band is wrapped around the edge to be sewn and sewn on the outside to the fabric webs. However, this solution is very expensive because the tape has to be relatively wide and expensive. The workload is also high.
Die Abdichtung von Flachnähten durch Mitvernähen eines Dichtbandes ist aus der Literatur bekannt, wobei zum Teil sehr spezielle Anwendungen vorliegen. So betrifft die DE-OS 27 51 162 das Abdichten von Nähten an Kraftwagenverdecken und die DE-PS 32 09 054 die wasserdichte Verbindung von kunststoffbeschichteten Gewebeteilen. Die FR-OS 2 634 468 beschreibt wohl einen Transportsack, allerdings von jener Type, bei der die Dichtigkeit durch einen eingehängten weiteren Sack vorgesehen wird, wobei das der Erfindung zugrunde liegende Problem überhaupt nicht auftreten kann.The sealing of flat seams by sewing a sealing tape together is known from the literature, some of which have very special applications. For example, DE-OS 27 51 162 relates to the sealing of seams on motor vehicle roofs and DE-PS 32 09 054 relates to the waterproof connection of plastic-coated fabric parts. FR-OS 2 634 468 probably describes a transport bag, but of the type in which the tightness is provided by a suspended additional bag, the problem underlying the invention not being able to occur at all.
Die gegenständliche Erfindung betrifft die Abdichtung von Kantnähten bzw. Stegnähten. Bei diesen tritt das Problem auf, daß unter hoher Belastung beim Befüllen des Sackes die Wände aufgespreizt und die Nahtlöcher aufgedehnt werden.The present invention relates to the sealing of edge seams or web seams. The problem arises with these that the walls are expanded and the seam holes are expanded when the sack is filled under high load.
Gemäß vorliegender Erfindung wird ein Transportsack vorgesehen, der dadurch gekennzeichnet ist, daß zur Ausbildung einer dichten Naht zwischen den Gewebebahnen im Nahtbereich ein Dichtband vorgesehen und mit den Gewebebahnen mitvernäht wird, wobei das Dichtband aus elastischem Material besteht und seitlich der Naht in das Innere des Transportsackes vorsteht.According to the present invention, a transport bag is provided, which is characterized in that a sealing tape is provided to form a tight seam between the fabric sheets in the seam area and is sewn together with the fabric sheets, the sealing tape being made of elastic material and the side of the seam into the interior of the transport bag protrudes.
Im Unterschied zu den bekannten Maßnahmen des Einlegens eines Dichtstreifens gemäß Vorhalte liegt die Wirkung gemäß Erfindung nicht so sehr darin, daß die Nählöcher selbst abgedichtet werden. Vielmehr liegt die Wirkung vor allem darin, daß der elastische Dichtstreifen sich nach innen in das Innere des Transportsackes erstreckt und sich beim Befüllen vor den Kantenverlauf legt und so eine Abdichtfunktion ausübt, die bereits vor den Nählöchern stattfindet. Wird als Material ein Dichtband oder Filzband verwendet, wie dies bevorzugt geschildert ist, kann durch den Nahtbereich die Luft entweichen und dennoch werden die Teilchen daran gehindert, auszutreten. Es tritt also eine Filterwirkung auf.In contrast to the known measures of inserting a sealing strip according to provisions, the effect according to the invention is not so much that the sewing holes themselves are sealed. Rather, the effect lies primarily in the fact that the elastic sealing strip extends inwards into the interior of the transport bag and, when filled, lies in front of the edge profile and thus performs a sealing function which already takes place in front of the sewing holes. If a sealing tape or felt tape is used as the material, as is preferably described, the air can escape through the seam area and the particles are nevertheless prevented from escaping. So there is a filter effect.
Zur weiteren Nahtabdichtung kann an einer oder jeder der beiden Nahtseiten zusätzlich noch ein weiteres Dichtband von außen mitgenäht werden.For further seam sealing, an additional sealing tape can also be sewn from the outside on one or each of the two seam sides.
So ausgebildete Nähte sind sehr dicht und die Herstellungskosten liegen bei einem Zehntel gegenüber der eingangs geschilderten Methode.Seams formed in this way are very tight and the production costs are one tenth of the method described at the beginning.
Das Dichtband ist in bevorzugter Weise ein gewebtes, gewirktes oder geflochtenes Band, wie z.B. ein Polypropylen-Multifilament-Docht. Ein solcher Docht ist sehr weich und elastisch. Ein bevorzugter Docht ist im Querschnitt etwa 15 mm breit und 4 mm stark. Es können auch runde Dochte Verwendung finden.The sealing tape is preferably a woven, knitted or braided tape, such as e.g. a polypropylene multifilament wick. Such a wick is very soft and elastic. A preferred wick is about 15 mm wide and 4 mm thick in cross section. Round wicks can also be used.
Bei der Herstellung ist es nötig, das Dichtband zwischen den Stoffbahnen einzulegen und so zu führen, daß das Dichtband sicher mitvernäht wird. Beim händischen Zuführen des Dichtbandes kann es bei Unachtsamkeit Vorkommen, daß dieses Vernähen nicht exakt abläuft und das Dichtband etwas nach innen auswandert. Eine solche Nahtstelle wäre nicht dicht.During production, it is necessary to insert the sealing tape between the fabric sheets and guide it so that the sealing tape is securely sewn together. When the sealing tape is fed in by hand, it can happen that this sewing does not proceed exactly and the sealing tape migrates somewhat inwards. Such an interface would not be tight.
Um das richtige Zuführen und Vernähen sicherzustellen, sieht die Erfindung eine Vorrichtung für das Zuführen des Dichtbandes vor. Dieses besteht aus einem am Nähtisch schwenkbar befestigten Führungshebel, der am Führungsende eine Führung aufweist. Bei eingeschwenktem Zustand liegt die Führung zwischen den zu vernähenden Gewebebahnen und stellt die exakte Zufuhr des Dichtbandes in die Naht sicher.In order to ensure correct feeding and sewing, the invention provides a device for feeding the sealing tape. This consists of a guide lever pivotally attached to the sewing table, which has a guide at the end of the guide. When swiveled in, the guide lies between the fabric sheets to be sewn and ensures the exact feeding of the sealing tape into the seam.
Im folgenden wird die Erfindung anhand schematischer Zeichnungen näher erläutert. Fig. 1 zeigt grundsätzlich den Aufbau eines Transportsackes. Die Fig. 2, 3 und 4 zeigen einen Schnitt durch den 2The invention is explained in more detail below with the aid of schematic drawings. Fig. 1 basically shows the structure of a transport bag. 2, 3 and 4 show a section through the 2nd
Claims (8)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0088095A AT403155B (en) | 1995-05-24 | 1995-05-24 | TRANSPORT BAG |
| DE1996120372 DE19620372B4 (en) | 1995-05-24 | 1996-05-21 | transport bag |
| BE9600460A BE1012524A3 (en) | 1995-05-24 | 1996-05-23 | Carrying bag and method and device for sewing. |
| GB9610951A GB2301087B (en) | 1995-05-24 | 1996-05-24 | Transport sack |
| NL1003204A NL1003204C2 (en) | 1995-05-24 | 1996-05-24 | Transport bag. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0088095A AT403155B (en) | 1995-05-24 | 1995-05-24 | TRANSPORT BAG |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ATA88095A ATA88095A (en) | 1997-04-15 |
| AT403155B true AT403155B (en) | 1997-11-25 |
Family
ID=3501959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT0088095A AT403155B (en) | 1995-05-24 | 1995-05-24 | TRANSPORT BAG |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT403155B (en) |
| BE (1) | BE1012524A3 (en) |
| DE (1) | DE19620372B4 (en) |
| GB (1) | GB2301087B (en) |
| NL (1) | NL1003204C2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9722407D0 (en) | 1997-10-24 | 1997-12-24 | Structure Flex Limited | Improvements in flexible intermediate bulk containers |
| DE10122885A1 (en) * | 2001-05-11 | 2002-11-14 | Basf Ag | Inliner, useful for transporting lysine in containers, e.g. for use as feed additive, comprises box structure of coated, woven polypropylene, having filling and emptying openings and flaps for securing in the container |
| DE602005009033D1 (en) | 2005-03-31 | 2008-09-25 | Storsack Dorton Ltd | FIBERGLED WEB SUITABLE FOR THE TRANSPORT OF FOIL MATERIALS |
| CH700150A1 (en) | 2008-12-24 | 2010-06-30 | Codefine Sa | A method of manufacturing bags for transportation and storage of bulk goods and bag obtained according to the method. |
| EP3257990A1 (en) | 2016-06-17 | 2017-12-20 | Codefine S.A. | Method for production of bags for the transport and storage of bulk goods or liquids, and bag obtained according to the method |
| EP3257991A1 (en) | 2016-06-17 | 2017-12-20 | Codefine S.A. | Method for production of bags for the transport and storage of bulk goods or liquids, and bag obtained according to the method |
| EP3472381B1 (en) | 2016-06-17 | 2020-05-27 | Codefine S.A. | Method for production of bags for the transport and storage of bulk goods or liquids, and bag obtained according to the method |
| US11767158B2 (en) | 2019-08-16 | 2023-09-26 | Lincoln Global, Inc. | Bulk flux bag hybrid liner bag |
| EP4343079B1 (en) | 2021-05-21 | 2024-10-16 | FEHR Groupe | Wall connection fitting with integrated formwork |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2751162A1 (en) * | 1977-11-16 | 1979-05-17 | Daimler Benz Ag | waterproofing overlapping seams in tarpaulins - by interposing self-adhesive polyurethane tape between overlaps before sewing together |
| GB1593566A (en) * | 1977-12-01 | 1981-07-22 | Saccheria Del Verbano Snc Di M | Method for making a great capacity bag and the related bag |
| US4593418A (en) * | 1984-05-29 | 1986-06-10 | Kimberly-Clark Corporation | Method and seam construction to significantly reduce seam leakage |
| DE3209054C2 (en) * | 1982-03-12 | 1986-09-18 | Paul Kiefel Hochfrequenz-Anlagen Gmbh, 8228 Freilassing | Watertight connection of the edges of plastic-coated fabric parts assigned in pairs and a method for producing this connection |
| FR2634468A1 (en) * | 1988-07-20 | 1990-01-26 | Fabrication Materiel Emballage | Bag for divided or pulverulent products |
| WO1993012016A1 (en) * | 1991-12-12 | 1993-06-24 | Haberl Gesellschaft M.B.H. | Flexible container made of textile fabric |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE513426C (en) * | 1928-06-30 | 1930-11-27 | Union Special Machine Co | Bag closure |
| GB361256A (en) * | 1930-04-24 | 1931-11-19 | Norsk Hydro Elek Sk Kvelstofak | Method of and apparatus for the making of water-proof bags |
| US2480882A (en) * | 1944-06-09 | 1949-09-06 | Warren Featherbone Co | Means for producing a waterproof seam for polyvinyl resinous coated fabrics |
| ES289402A1 (en) * | 1963-06-11 | 1963-08-16 | Duarry Serra Juan | An improved method for the production of hollow inflatable objects from fabrics or the like |
| GB1525994A (en) * | 1976-02-11 | 1978-09-27 | Goodbody Ltd J | Containers for bulk materials |
| GB1555892A (en) * | 1977-03-18 | 1979-11-14 | Bibby Ltd Noel | Fabric seams |
| EP0001696A1 (en) * | 1977-10-14 | 1979-05-02 | Lolift (U.K.) Limited | Improvements relating to material containers |
| FR2437925A3 (en) * | 1978-10-03 | 1980-04-30 | Est Imprimerie Papeterie | Lined sack prodn. system - with stitched layers including lining sheets secured by adhesive |
| BE874333A (en) * | 1979-02-21 | 1979-06-18 | Saccheria Del Verbano S N C Di | LARGE CAPACITY BAGS MANUFACTURING PROCESS, AND BAG REALIZED FOLLOWING THIS |
| DE8610230U1 (en) * | 1986-04-15 | 1986-06-05 | Lolift Verwaltungs Gmbh, 2200 Elmshorn | Large-capacity transport bag for bulk goods |
| DE4033499A1 (en) * | 1990-10-20 | 1992-04-23 | Silver Plastics Gmbh & Co Kg | Production of thermoplastic valve bags - overlapping perforated longitudinal edges of plastic film, strip of fibres and fused strip of same polymer and welding together by rollers |
| DE4223034A1 (en) * | 1992-07-14 | 1994-02-17 | Jorge Lopez Blumenkron | Sewn bag withstanding heavy loads over long periods - is made of e.g. polypropylene with all corners made by folding material round strip of isotropic structure and sewing together |
| DE9215563U1 (en) * | 1992-11-16 | 1993-01-28 | Ortwin M. Zeissig Gmbh & Co. Kg, 4330 Muelheim | Transport and storage containers made of flexible material |
-
1995
- 1995-05-24 AT AT0088095A patent/AT403155B/en not_active IP Right Cessation
-
1996
- 1996-05-21 DE DE1996120372 patent/DE19620372B4/en not_active Expired - Fee Related
- 1996-05-23 BE BE9600460A patent/BE1012524A3/en not_active IP Right Cessation
- 1996-05-24 NL NL1003204A patent/NL1003204C2/en active Search and Examination
- 1996-05-24 GB GB9610951A patent/GB2301087B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2751162A1 (en) * | 1977-11-16 | 1979-05-17 | Daimler Benz Ag | waterproofing overlapping seams in tarpaulins - by interposing self-adhesive polyurethane tape between overlaps before sewing together |
| GB1593566A (en) * | 1977-12-01 | 1981-07-22 | Saccheria Del Verbano Snc Di M | Method for making a great capacity bag and the related bag |
| DE3209054C2 (en) * | 1982-03-12 | 1986-09-18 | Paul Kiefel Hochfrequenz-Anlagen Gmbh, 8228 Freilassing | Watertight connection of the edges of plastic-coated fabric parts assigned in pairs and a method for producing this connection |
| US4593418A (en) * | 1984-05-29 | 1986-06-10 | Kimberly-Clark Corporation | Method and seam construction to significantly reduce seam leakage |
| FR2634468A1 (en) * | 1988-07-20 | 1990-01-26 | Fabrication Materiel Emballage | Bag for divided or pulverulent products |
| WO1993012016A1 (en) * | 1991-12-12 | 1993-06-24 | Haberl Gesellschaft M.B.H. | Flexible container made of textile fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2301087B (en) | 1999-01-06 |
| DE19620372B4 (en) | 2007-04-05 |
| BE1012524A3 (en) | 2000-12-05 |
| GB9610951D0 (en) | 1996-07-31 |
| DE19620372A1 (en) | 1996-11-28 |
| NL1003204A1 (en) | 1996-11-26 |
| GB2301087A (en) | 1996-11-27 |
| ATA88095A (en) | 1997-04-15 |
| NL1003204C2 (en) | 1997-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2436125C3 (en) | Method and device for the production of hooks or loops carrying fastener parts | |
| DE2330996A1 (en) | ELASTIC TAPE, IN PARTICULAR FOR USE IN CLOTHES | |
| AT403155B (en) | TRANSPORT BAG | |
| DE69718228T2 (en) | Airbag protection device for normal deployments and deployments when the occupant is in an incorrect position | |
| DE19719159A1 (en) | Air bag for corresponding device in road vehicle | |
| DE2837545C2 (en) | ||
| EP0193031A2 (en) | Large transport bag for bulk material | |
| DE2345820A1 (en) | CHAMBER FILTER FOR FLUID AND PROCESS FOR ITS MANUFACTURING | |
| CH637008A5 (en) | Fitted sheet and method for its manufacture | |
| DE19859767B4 (en) | Airbag with discharge opening | |
| DE3223539C2 (en) | Large capacity sack | |
| DE3205541A1 (en) | Device for the local register setting of screen-printing forme carriers | |
| EP0140346B1 (en) | Large transport bag for bulk material | |
| DE4223034A1 (en) | Sewn bag withstanding heavy loads over long periods - is made of e.g. polypropylene with all corners made by folding material round strip of isotropic structure and sewing together | |
| DE1172067B (en) | Process for applying double-sided, folded, double-layer cover strips along the row of links of a zip fastener and a zip fastener produced using this method | |
| DE2547588A1 (en) | Hospital laundry bag for self discharge in drum washing machine - with two rectangular webs of fabric | |
| DE4431452C2 (en) | Bellows to cover guideways | |
| DE69503597T2 (en) | Production of a flexible bulk container | |
| DE2626661A1 (en) | STRAP FOR A ROW OF ZIP LINKS | |
| AT409501B (en) | STITCH PLATE FOR A TWO- OR THREE-NEEDLE INTERLOCK SEWING MACHINE | |
| DE2548028C3 (en) | Process for the production of spherical or hemispherical tassels | |
| AT845U1 (en) | TRANSPORT BAG | |
| DE602518C (en) | Seam closure, especially for paper bags or the like. | |
| DE2731754A1 (en) | Paper making machine belting - with rings at ends with a crocheted upper cladding to cover joint when formed into continuous loop | |
| DE1949086A1 (en) | Sack valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| REN | Ceased due to non-payment of the annual fee | ||
| MK07 | Expiry |
Effective date: 20150524 |