EP0072168B1 - Sacs pour transporter de la marchandise en vrac - Google Patents
Sacs pour transporter de la marchandise en vrac Download PDFInfo
- Publication number
- EP0072168B1 EP0072168B1 EP82304062A EP82304062A EP0072168B1 EP 0072168 B1 EP0072168 B1 EP 0072168B1 EP 82304062 A EP82304062 A EP 82304062A EP 82304062 A EP82304062 A EP 82304062A EP 0072168 B1 EP0072168 B1 EP 0072168B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bag
- lifting
- plastics
- web
- bonded
- 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
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]
- B65D88/1675—Lifting fittings
- B65D88/1681—Flexible, e.g. loops, or reinforcements therefor
-
- 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
- This invention relates to a bulk transport bag, i.e. a bag of suitably treated flexible material especially intended for the transportation of flowable materials, i.e. materials such as pulverulent or granular or analogous materials which can be poured into and out of a bag, including liquid materials.
- flowable materials i.e. materials such as pulverulent or granular or analogous materials which can be poured into and out of a bag, including liquid materials.
- the latter bags are commonly made of plastics coated fabric, with a main materials-containing body, a top inlet chute and a bottom outlet spout.
- Means are incorporated in the bag to enable it to be lifted from the top, as by a fork lift truck, to facilitate filling with the top inlet open or emptying with the bottom outlet open, and to facilitate loading and unloading the bag on to or from a transporting vehicle or ship or plane or conveyor.
- Known lifting means comprise a steel band or collar around the top of the main body, and a yoke means which cooperates with the collar to support the bag.
- the yoke means may be a part of the bag assembly or be separable therefrom. In either case, the provision of the lifting means is a costly procedure in terms of labour and materials, and makes the re-usable bulk transport bag an expensive item.
- Multiple trip bags of the aforementioned type are known, in particular, from U.K. Patent Specifications No. 1129917 and No. 1177745.
- U.K. Patent Specifications No. 1455874 and No. 1484984 Another type of multiple trip bag is known from U.K. Patent Specifications No. 1455874 and No. 1484984.
- This bag has a stitched polypropylene body with lifting loops stitched thereto, and can be provided with an inner liner of impervious plastics material formed with an outlet chute which projects through an aperture in the bottom wall of the polypropylene body.
- the inner liner is for single trip or very limited multiple trip use.
- Simpler bulk transport bags allegedly for mul- titrip use but in practice much less durable than those referred to above, also employ lifting straps, for example stitched either directly to the wall of the bag orto a reinforcing patch secured to the wall of the bag, or being threaded through slots or channels incorporated in the body of the bag.
- the bulk transport bag in accordance with the invention comprises a main materials-containing body with a closable inlet and outlet for the material to be carried, and lifting means attached to said body, wherein the body is made of a fabric coated with a plastics material, and the lifting means comprises a plurality of fabric webs coated and/or impregnated with a plastics material compatible with the plastics coating on the body material, said plastics treated lifting webs being bonded to the plastics coated body through said compatible plastics materials.
- the lifting means effectively forms an integral part of the bag structure, as the plastics materials of the plastics coated bag body and of the plastics treated webs effectively tend to merge into one another when the body and bag are bonded together, as by plastics welding.
- each bond may be able to withstand a planar shear force of 10,000 kg.
- the body of the bag is not penetrated by stitching where the lifting means is connected.
- the body of the bag is not penetrated by any stitching or by any other fastenings, fixings or fittings other than the closable inlet and outlet, said inlet and outlet being sealed to the bag body so that the bag is thereby rendered wholly impervious to liquid when the inlet/outlet are closed.
- the bag can thus be used to carry materials which must be kept dry, such as hygroscopic materials.
- the bag may have suitable inlets and outlets sealed thereto to enable said bag to be used for the transportation of liquids.
- each plastics treated lifting web is bonded at both sides of an intermediate portion of the length thereof to the side wall of the main body, so that the intermediate portion forms a lifting loop at the top of the main body, the plurality of lifting loops being symmetrically disposed around the periphery of the main body.
- Four lifting loops at 90 degrees angular spacings will often be convenient.
- each lifting web is preferably bonded along two linear regions of the bag body spaced around the side wall thereof.
- Such linear bonding regions may be vertical in the upright condition of the bag body.
- said two linear bonding regions for each web are inclined when the bag is in its upright condition.
- the two inclined linear bonding regions may meet at the upper periphery of the side wall of the bag.
- Each lifting loop is preferably bonded to the bag body over its entire length on each side of the intermediate portion forming the lifting loop, and each end of each bonded lifting web can be covered by a bonded patch of plastics coated fabric, thereby to form an anti-peel device. In this way, risk of accidental or deliberate abuse of the bag, brought about by attempts to peel the bonded lifting web from the bag body, starting from the ends of the web, is minimised.
- the strength of the bonds when subject to a peeling force is not so great, and may be less than 100 kg. It is therefore desirable to protect the bag against damage due, for example, to a peeling force applied to one or more of the bonds when, for example due to improperly applied lifting forces, one or more of the lifting loops is pulled outwardly from the bag.
- the web passes through an anti-peel device for preventing tearing of the web from the body when the lifting means is subject to an outward peeling force at an angle to the vertical.
- the anti-peel devices absorb the outward components of forces applied to the lifting loops, and ensure that the forces applied to the bonds are almost wholly restricted to stresses acting in the planes of said bonds.
- Each said anti-peel device may comprise an eyelet in a rim of plastics material upstanding from the upper periphery of the side wall of the bag body, or it may comprise an aperture formed between an upper edge region of the side wall of the bag body and one or more strips of plastics coated fabric bonded around said upper edge region of the side wall, with non-bonded portions of said strip or strips defining said apertures.
- the plastics treated webs constituting the lifting means are each bonded to the side wall of the bag body at an angle to the vertical, with web portions of each web crossing one another in the manner of braces to pass through a common anti-peel device at the periphery of the side wall of the bag.
- the closable inlet and outlet may comprise a central inlet chute opening through a top wall of the bag body and a central outlet spout opening out of a bottom wall of the bag body, all said parts of the bag body being made of pieces of the same plastics coated fabric bonded together to define a bag of predetermined shape.
- the said predetermined shape may be circular, polygonal or square, for example, but in all cases the bonding of the plastics coated fabric pieces together ensures that the bag remains impervious to liquid.
- the outlet spout will normally be omitted or permanently sealed, and a plug or spigot sealed in position, either in the bottom wall of the bag or at the bottom of the side wall thereof, to enable liquid to be poured off.
- the bag body is coated and the lifting webs are impregnated and/or coated with the same plastics material.
- the bag body may be made of nylon or polyester fabric coated with PVC and the lifting webs made of polyester fabric impregnated and/or coated with PVC.
- the bulk transport bag comprises a bag body, generally designated 10, made of a flexible fabric such as nylon or polyester fabric coated with a plastics material such as PVC.
- the bag body is generally of circular cross-section, with a side wall 12, top wall 14 to which is fitted a central inlet chute 16, and a bottom wall 18 to which is fitted a central outlet spout 20. All these parts of the bag are made of the same plastics coated fabric, and these plastics coated fabric parts are bonded together by plastics welding so as to form the bag body 10 of the predetermined shape illustrated. Welded regions are indicated by the reference 22.
- the bottom wall 18, which is likewise welded to the side wall 12 can be of conical form as illustrated, possibly with the angle of the cone selected to suit a particular material to be carried, or it can be flat.
- Tie cords 24 are provided for closing the inlet chute 16 and outlet spout 20.
- the outlet spout 20 may be omitted or sealed closed, and a plug or spigot sealingly fitted into the bottom wall 18, or into the bottom of the side wall 12.
- the bag body is provided with lifting loops 26.
- lifting loops 26 are made of web fabric such as polyester web impregnated with a plastics material compatible with that coated on the body fabric.
- the lifting webs may conveniently be impregnated with the same material as that coated on the body fabric, for example PVC.
- the lifting webs may be impregnated and/or coated with this plastics material.
- the lifting webs have end portions 28 bonded, each over its entire surface area on one side thereof, to the side wall 12 of the bag body 10.
- each lifting web between its bonded end portions 28 forms a corresponding lifting loop 26, which stands up from the upper periphery of the side wall 12 of the bag body 10.
- anti-peel devices are provided around the upper periphery of the side wall 12 of the bag body 10 at each point where the lifting web separates from the side wall to form the lifting loop 26.
- each such anti-peel device comprises a strip 30 of plastics coated fabric, extending around part of the upper periphery of the side wall 12.
- Each strip 30 is bonded at its end regions 32 to the side wall 12, and has an intermediate unbonded portion 34 which in combination with the side wall behind it defines an aperture through which the lifting web passes at the point where it crosses over itself to form the lifting loop 26. It is at this cross-over point that the bonded end portions 28 of the lifting web terminate, and the anti-peel strip 30 thus absorbs radially outward forces acting on the lifting loop and substantially prevents any peeling-off force being applied to the bonded end portions at this point. It is thereby ensured that stress forces acting on the bonds are restricted to the planes of the bonds, in which planes the bonds are more than adequately strong to resist such stresses.
- FIG. 3 shows a modification of the bag in which a different form of anti-peel device is employed at the upper periphery of the side wall 12 of the bag body.
- the top wall of the bag body is plastics welded to the side wall to form an upstanding hem 36, and each anti-peel device comprises an eyelet device 38 incorporated in this hem.
- each end 40 of each lifting web where bonded to the side wall 12 of the bag body remote from the lifting loop 26, is protected by a patch 42 of plastics coated fabric plastics welded to the side wall so as to cover such end 40 of the web. This prevents access to the ends 40 of the lifting web and thus minimises risk of accidental or deliberate abuse by application of peeling-off forces to the lifting web, starting from these ends.
- Figure 4 shows another modification in which the bonded end portions 28 of each lifting web are positioned vertically on the side wall 12 of the bag body.
- Anti-peel devices 42 similar to those shown in Figure 3 are employed at the lower ends 40 of each web.
- two anti-peel devices are provided for each lifting loop 26, as the linear bonded regions 28 of the web are spaced apart in parallel.
- Each such anti-peel device at the upper periphery of the side wall of the bag body is of similar form to that shown in Figure 2, but a single strip 44 of plastics coated fabric extending around the entire upper periphery of the side wall is used for forming all said anti-peel devices, said single strip having alternating bonded portions 46 and non-bonded portions 48.
- the base fabric of the bag and/or lifting webs prefferably be made of polyester, polypropylene or polyamide (nylon), or any combination thereof, and the plastics surface treatment to be an impregnation and/or coating of PVC, polyurethane or synthetic rubber (neoprene), or a laminant coating of such materials.
- neoprene is employed as a coating for the bag fabric, it will generally be necessary also to employ neoprene as the coating on the web fabric, in order to achieve the required bond, in particular by ultra high frequency welding.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Packages (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82304062T ATE16165T1 (de) | 1981-08-03 | 1982-08-02 | Transportbeutel fuer schuettgut. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8123645 | 1981-08-03 | ||
GB8123645 | 1981-08-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0072168A1 EP0072168A1 (fr) | 1983-02-16 |
EP0072168B1 true EP0072168B1 (fr) | 1985-10-23 |
Family
ID=10523648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82304062A Expired EP0072168B1 (fr) | 1981-08-03 | 1982-08-02 | Sacs pour transporter de la marchandise en vrac |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0072168B1 (fr) |
AT (1) | ATE16165T1 (fr) |
DE (1) | DE3267037D1 (fr) |
GB (1) | GB2104045B (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1077068C (zh) * | 1997-07-30 | 2002-01-02 | 田中产业株式会社 | 用于根菜的挠性容器 |
GB9722407D0 (en) | 1997-10-24 | 1997-12-24 | Structure Flex Limited | Improvements in flexible intermediate bulk containers |
US20150128867A1 (en) * | 2013-11-12 | 2015-05-14 | Chance Daniel KEITH | Feeding Apparatus, Method, and System |
FR3013752B1 (fr) * | 2013-11-22 | 2015-11-20 | Mabamure | Procede et ensemble pour la realisation d'un intervalle de separation entre deux parois paralleles |
CN103600936A (zh) * | 2013-11-29 | 2014-02-26 | 淄博新力塑编有限公司 | Pvc涂塑布袋 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1019706A (en) * | 1964-04-20 | 1966-02-09 | Gatward Harry F | Improvements in carrier bags and handles for use therewith |
DE1761625A1 (de) * | 1968-06-18 | 1971-07-22 | Ver Papierwarenfab Gmbh | Tragbeutel mit je doppelseitig angeordneten Traggriffen |
DE1782580A1 (de) * | 1968-09-20 | 1972-01-20 | Ver Papierwarenfabrik Gmbh | Tragtasche oder Tragbeutel aus Papier und/oder Folie mit unverlierbarem Traggriff,welcher gleichzeitig als Tragtaschen- oder Tragbeutelverschluss dient |
GB1431581A (en) * | 1973-04-03 | 1976-04-07 | Nattrass Frank | Bulk material containers |
GB1455874A (en) * | 1973-09-17 | 1976-11-17 | Nattrass Frank | Bulk material containers |
IN150676B (fr) * | 1978-02-23 | 1982-11-20 | Tioxide Group Ltd |
-
1982
- 1982-08-02 EP EP82304062A patent/EP0072168B1/fr not_active Expired
- 1982-08-02 AT AT82304062T patent/ATE16165T1/de not_active IP Right Cessation
- 1982-08-02 GB GB08222178A patent/GB2104045B/en not_active Expired
- 1982-08-02 DE DE8282304062T patent/DE3267037D1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ATE16165T1 (de) | 1985-11-15 |
EP0072168A1 (fr) | 1983-02-16 |
DE3267037D1 (en) | 1985-11-28 |
GB2104045B (en) | 1984-10-31 |
GB2104045A (en) | 1983-03-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4480766A (en) | Bulk transport bag | |
US4390051A (en) | Securing a liner within a flexible container | |
US5340218A (en) | Bulk storage bag with remotely openable discharge spout | |
US9493299B2 (en) | Lifting bag | |
US8894282B2 (en) | Lifting bag device | |
US4759473A (en) | Collapsible receptacle with integral sling | |
US4596040A (en) | Large bulk bag | |
US7500786B2 (en) | Bulk bag for meat and meat products | |
US4224970A (en) | Collapsible receptacle for flowable materials | |
US4143796A (en) | Collapsible receptacle for flowable materials | |
US6921201B2 (en) | Bulk bag for meat and meat products | |
US5695286A (en) | Bottom lift bulk bag | |
US6935782B2 (en) | Bulk bag with seamless bottom | |
EP1678058B1 (fr) | Sac de stockage | |
EP0072168B1 (fr) | Sacs pour transporter de la marchandise en vrac | |
CA1158574A (fr) | Contenant pliant a anses de levage incorporees | |
AU734247B2 (en) | Container bag | |
USRE32308E (en) | End wall closure for bulk material transport bag | |
CA1202249A (fr) | Sac de transport en vrac | |
US4832506A (en) | Flexible container to be filled with bulk material and method for its manufacture | |
GB2130172A (en) | Flexible bulk container | |
US5536086A (en) | Reinforced wall bottom closure construction for a bulk bag | |
JP2004345710A (ja) | フレキシブルコンテナバッグ、およびその使用方法 | |
RU2806676C1 (ru) | Применение полиэтиленовой пленки для изготовления одноразового вкладыша мягкого контейнера для транспортировки и хранения насыпных грузов | |
US4781470A (en) | Flexible container with separate lifting area |
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 |
Designated state(s): AT BE CH DE FR IT LI NL SE |
|
17P | Request for examination filed |
Effective date: 19830805 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR IT LI NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 19851023 Ref country code: FR Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19851023 |
|
REF | Corresponds to: |
Ref document number: 16165 Country of ref document: AT Date of ref document: 19851115 Kind code of ref document: T |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19851030 |
|
REF | Corresponds to: |
Ref document number: 3267037 Country of ref document: DE Date of ref document: 19851128 |
|
EN | Fr: translation not filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19901108 Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19910831 Ref country code: CH Effective date: 19910831 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19990830 Year of fee payment: 18 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19990831 Year of fee payment: 18 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19991013 Year of fee payment: 18 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000802 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000831 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20000928 Year of fee payment: 19 |
|
BERE | Be: lapsed |
Owner name: IBC TRANSPORT CONTAINERS LTD Effective date: 20000831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010301 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20010301 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020501 |