CA1200218A - Flexible container to be filled with bulk material and method for its manufacture - Google Patents
Flexible container to be filled with bulk material and method for its manufactureInfo
- Publication number
- CA1200218A CA1200218A CA000447338A CA447338A CA1200218A CA 1200218 A CA1200218 A CA 1200218A CA 000447338 A CA000447338 A CA 000447338A CA 447338 A CA447338 A CA 447338A CA 1200218 A CA1200218 A CA 1200218A
- Authority
- CA
- Canada
- Prior art keywords
- lifting
- area
- piece
- loops
- joined
- 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
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]
Abstract
Abstract The present invention relates to flexible containers to be filled with bulk material, and their manufacture. The con-tainer has at least one lifting loop (6) which is gathered in a lifting loop having a permanent lifting handle (10) comprising the lifting loops (6) folded or pressed together and joined by means of glue or a seam in a lifting area (4).
The lifting handle (10) may comprise a piece of material (5) which at least covers the lower part of the lifting area (4) which has a width < 1/6 of the container's circumference.
The container is made from a flat-woven or round-woven base material (1) which is joined for forming at least one integrated lifting loop (6). Those parts of the base material (1) which shall form the lifting loop (6) are folded to at least one lifting area (4). It might possibly be fastened to a piece of material (5) to at least the lower part of the area (4). By joining of the area (4) and/or fastening the piece of material (5) there is formed a permanent lifting handle (10). The piece of material (5) which is fastened around the area (4) can be in form of a sleeve and have the same width as this area.
The lifting handle (10) may comprise a piece of material (5) which at least covers the lower part of the lifting area (4) which has a width < 1/6 of the container's circumference.
The container is made from a flat-woven or round-woven base material (1) which is joined for forming at least one integrated lifting loop (6). Those parts of the base material (1) which shall form the lifting loop (6) are folded to at least one lifting area (4). It might possibly be fastened to a piece of material (5) to at least the lower part of the area (4). By joining of the area (4) and/or fastening the piece of material (5) there is formed a permanent lifting handle (10). The piece of material (5) which is fastened around the area (4) can be in form of a sleeve and have the same width as this area.
Description
~L~''3~3~
The present invention relates to flexible containers to be filled with bulk material, and the containers comprise integrated lifting loops. The invention also comprises a method for manufacturing such containers from flat-woven or round-woven base material which are joined together for forming at least one integrated lifting loop.
Containers of the above mentioned type have been used for some time and been found to be suitable for several purposes.
Usua1ly they comprise an inner bag or liner of impervious materialO The container is usually first blown up by air before it is filled with free-flowing bulk material. Such a container is described in US Patent No. 4.136.723. This container has a double bottom and is preferably equipped with two integrated lifting loops having a total width substantial-ly equal to half of the container's circumference such that the lifting loops comprise all of the longitudinal fibres of the con~ainer. The container can be filled by using an appara-tus described in GB-Patent No. 1.505.583~ and it will then be standing on a floor or the like without any extra support. Its lifting loop can be placed on a hook or the like before the container is blown up and filled with bulk materialO The con-tainer can then be made ready for further transport, and this process might comprise closing the inner bag and joining the lifting loops by ;pressing them together and secure them in this position such that one obtains a suitable loop which easily can be placed on a hook or some other lifting means.
JI~
If a broad hook is applied to hang the lifting loops on during the filling operation, the wide loops will be pressed together to a few cm and can be kept in this position by means of a tape. One will then obtain a well-defined loop which makes the container well suited for further transport, and this is described in EP-application No. 81108748,5 (publication No. 54145).
However, it has been found that the above mentioned process for making the container ready beforehand also has certain disadvantages. Also when the container's li~ting loops are made ready after filling it implies some drawbacks. Thus the capacity of the filling apparatus will be reduced because of the time i~ takes for the operator to place the lifting :Loops onto a hook which will press them togetherO If this operation is carried out after the container is filled in order to im-prove the capacity of the apparatus, then the total filling operation will be more labour-consuming because an extra operator is needed for making the container's loops ready.
Further, the container's form itself implies tha~ it is necessary to use filling apparatuses of a special type in order to obtain an efficient filling and an effective process for making such containers ready. The fact that such special filling apparatuses are not available everywhere where filling of such containers can take place, has accordingly hindered a widespread use of the container.
The lifting loops, which may have a total width corresponding to half the container's circumference, implies that the pro-cess of joining together the loops to one lifting loop becomes somewhat labour~consuming. The wide loops also result in cer-tain disadvantages when the container shall be placed up on the filling apparatus or connected to it. Accordingly, there has been a need for making these operations easier and less labour consuming.
~ t~
One would like to continue having some form of lifting loops because of -the good experience with integrated lifting loops which after filling of bulk material in the container were joined together by tape for making a lifting loop. During further transport of the container such liEting loops had been found to be suitable for placing lifting hooks, forks and other means used for lifting and transporting the con-tainer into the lifting loop.
When fork trucks shall be used, one should apply special lifting devices whereupon the lifting loop is placed. This device is connected to the forks. lt has further been found that the tape applied in certain cases can be damaged during the further lifting and transport of the container~ especially if there in this connection are applied lifting forks having sharp edges, the load carrying fibres of the lifting loop can be damaged.
In such cases there is therefore a need for a better protec-tion of the fibres in the lifting loop and a way of joining which can endure the strain when lifting forks are applied~
The object of the present invention was to arrive at lifting loops ha~ing a permanent lifting handle which eould endure the strain they would be exposed to during application of the flexible containerO Another object was to be able to apply all types of filling apparatuses and lifting devices such that application of the container would not be limited by the need for special equipment. A further object was to arrive at a rational way of making flexible containers with integrated lifting loops equipped with a permanent lifting handle.
Manufacture of the lifting handle itself by joinina the lifting loops at the filling station had been found to be rather labour-consuming and additionally it required special hooks on tne filling apparatus. To start with one desired to q"~
make a liEting handle in order -to be independent of special lif-t-ing hooks, and -the inventors soon found that it would be easiest to make the lif-ting handle at the same place as the container it-self was made.
If the empty con-tainer is equipped with lifting loops having a permanent lifting handle, -the -transport of such empty containers will be more e~pensive than for -the usual containers because of the larger volume to be transported. But it was found that the filling operation itself became so much easier when one used containers having permanent lifting handle -that the advan-tages would be far greater than the disadvantages of transporting empty containers.
The problem now was how the permanent lifting handle could be formed most appropriately. It was found tha-t the method would vary somewhat according to what ]cind of base material the container was made from. For containers having integrated lift-ing loops it can be generally said that one has two types of base material, i.e. flat-woven or round-woven textile. The round-woven textile can be joined together in different ways. For instance such that one either attains lif-ting loops having a seam or lifting loops without a seam, but -then containers with side seams. It was surprisingly found that it was possible to make the lifting handle principally in the same way for the different types of base materials.
Accordingly, the present invention provides a flexible container to be filled with bulk materlal and comprising inte-grated lifting loops, charac-terized in that -the lifting loop or -4a--loops axe joined together in at :Leas-t one lifting loop having a permanent lifting handle comprising lifting loops folded or pressed together and joined together a-t a lifting area by means of glue or at least one seam.
The present inven-tion also provides a me-thod for making the immediately aforesaid flexible container, and made from fla-t--woven or lound-woven base material which is joined to form a-t least one lif-ting 1oop characterized in that that part of -the base ma~erial which shal:L form -the lif-ting loops are folded or pressed together to a-t :least one lifting area to which there is fastened a piece of material to at least the lower part of the area, where b~ a permanent lifting handle is formed.
The width of the lif-ting loops is hereby reduced to a suitable dimensiorl for forming a lifcing loop with a lifting handle. ~t was Lurther found that the total width of the lifting loop at least should be reduced so much that the width of -the liftlng area became maximum 1/6 of the container's circumference.
One t~(J~
would then obtain a lifting loop with a lifting handle which was appropriate and advantageous for all operations as filling, handling, lifting, transport and discharge of the container. In certain cases one desires to avoid wear on the load~carrying fibres of the lifting loop formed in this way.
In that case the lifting handle itself is equipped with an extra piece of materialO This piece of material should at least cover the lower part of the ]ifting handle, that means that part which will lie against the lifting device, Eor in-stance a lifting fork, a hook or the like, when the flexible container is lifted and/or transported. This extra piece of material can also be in the form of a sleeve such that it sur-rounds the lifting handle. Said piece of material must be made from a strong material which can endure the strains it is ex-posed to and which can be joined to the material o. the lift-ing loops such that a permanent lifting point is obtained.
This piece of material will preferably consist of woven material, for instance of the same type which is used in the container itself.
The special features of the invention are stated in the following claims.
The invention will now be further explained with reference to the drawings.
igure 1 shows a flat~woven base material for a flexible container.
igure 2 shows a round-woven base material for a flexible container having lifting loops comprising a seam~
i~ure 3 shows a round-woven base material for a flexible container having liEting loops without seams.
igure 4 shows a lifting loop with a lifting handle seen from above.
Figure 1 shows a base material 1 consisting of two halves A
and B, and with side edges 3 and a cut 8 which makes it possible to form a container having a double bottom. The piece of material 1 is first folded against the centre such that those parts which later on shall form the lifting loops 6 are collected in the rniddle of a folding line 2 in an area 4 which is less or like 1/6 of the container's circumerence~ In most cases it will be an advantage to have a lifting area which is le~s than 1/10 of said circumference.
The side edges 3 will now be placed a5 shown by the reference number 3'. The area 4 marked out on the lifting loops 6 is then joined by means of glue or preferably at least one seam.
One can fasten a piece of material 5 over the area 4, for in-stance by means of a seam. The piece of material 5 can be fastened around the area 4 such that it gets the form of a sleeve. The material 1 is folded over the line 2 such that the halves A and B cover each other. Thereupon the container is sewn along the side edges 3 and at the bottom, whereby a com-pletely finished container with lifting loops 6 and a lifting handle 10 comprising the protecting piece of material SO The piece of material 5 can be of woven material, for instance of the same type as that used in the container itself, or of some other suitable material which is strong enough to endure the strains it will be exposed to during Further handlina of the container. The piece of material 5 might have a special colour such that the lifting point is clearly marked out, and it can for instance be applied as colour code for the type of con-tainer used or the material which shall be transported. On figure 5 there is shown application of an extra piece of material 5, but the permanent lifting handle 10 can as pre-viously 1nentioned also be made without this piece of material, that is by just ~oining together the area 4~
Figure 2 shows a round-woven base material 1. This must first be joined in its upper part by seams 11 for forming at least one lifting loop 60 Thereupon there is made a cut in the upper .3~
part of the piece of material for forming openings 7 in which lifting devices as a hook or fork can be placed, and which also can be used as filling opening for the bulk material which shall be transported or stored in the container. The lifting area 4 is then formed by folding together the loops 6 and joining by means of glue or at least one seamO A piece of material 5 can then be fastenecl to the area 4 in the same way as described in connection with figure 1, and one gets the permanent likting handle 10. The container's bottom can be formed in known manner, and the container is then ready for being filled.
In figure 3 it is also shown a round-woven base material 1, but here one has already made the lifting loops 6 ready beforehand, and the lifting area 4 can be formed by bending or folding together these as described above. The container's side edges are then joined by seams 11 which terminate some-what below the lifting loops such that openings 7 are formed.
Unles one desires to make the container with a special bottom, the container will now be ready for filling.
In figure 4 is a lifting loop 6 with lifting handle 10 shown seen from above. 'rhe piece of material 5 which here is only fastened at the lower part of the lifting handle, is not visible on the figure~ but the seams 9 for fastening the piece of material 5 to the area 4 is shown. The openings 7 are here shown equally large, but if so desired the opening which shall be use~ as filling opening can be made somewhat larger than the other one.
A container made according to the invention is ready for being connected directly to the filling apparatus. The filling pipe is put into one of the openings 7, and the container can be blown up by air and thereupon filled with free flowing material. During the filling operation the lifting loops can be placed on a hook on the filling apparatus, but strictly 4.~2~
speaking this is not necessary. It has in fact been found that the blown up cvntainer can stand freely and without sub~
stantial support sideways during the filling operation. As soon as the container is filled it is just to close its inner bay, and then it is ready for beirlg transported.
By the present invention one has obtained a rational manuEac-ture of a container with lifting loop having a permanent lifting handle. Filling of such readymade containers can be carried out quickly and easily with fewer operators than usually is necessary when one has to form the lifting point at the filling station. The filling operation itself will accordingly be strongly simplified, as placement of the con-tainer on special lifting hooks or forming of lifting handles will not be necessary. The container will thereby be ready for further transport as soon as it is filled and the inner bag is closed. The capacity of the filling apparatus can be uitilized maximally, and the total operation for filling and making the container ready for further transport will be less labour-consuming.
c sS e,~ 7/ ~'~ / \`
An'c~ccntit~l ~ vantage which is obtained by the present in-vention is that one is not dependent on complicated or special filling apparatuses or lifting devices. Thus one can use lift-ing ~orks which easily can be put in under the well-defined lifting handle, which is thus strongly made that it can endure several handling operations of the filled container without damaging the lifting handle or the lifting loop by the hand-ling devices. Even when especially rough lifting devices are used, the lifting handle according to the invention comprising the protecting piece of material 5 will secure the fibres in the lifting loop against wear.
The present invention relates to flexible containers to be filled with bulk material, and the containers comprise integrated lifting loops. The invention also comprises a method for manufacturing such containers from flat-woven or round-woven base material which are joined together for forming at least one integrated lifting loop.
Containers of the above mentioned type have been used for some time and been found to be suitable for several purposes.
Usua1ly they comprise an inner bag or liner of impervious materialO The container is usually first blown up by air before it is filled with free-flowing bulk material. Such a container is described in US Patent No. 4.136.723. This container has a double bottom and is preferably equipped with two integrated lifting loops having a total width substantial-ly equal to half of the container's circumference such that the lifting loops comprise all of the longitudinal fibres of the con~ainer. The container can be filled by using an appara-tus described in GB-Patent No. 1.505.583~ and it will then be standing on a floor or the like without any extra support. Its lifting loop can be placed on a hook or the like before the container is blown up and filled with bulk materialO The con-tainer can then be made ready for further transport, and this process might comprise closing the inner bag and joining the lifting loops by ;pressing them together and secure them in this position such that one obtains a suitable loop which easily can be placed on a hook or some other lifting means.
JI~
If a broad hook is applied to hang the lifting loops on during the filling operation, the wide loops will be pressed together to a few cm and can be kept in this position by means of a tape. One will then obtain a well-defined loop which makes the container well suited for further transport, and this is described in EP-application No. 81108748,5 (publication No. 54145).
However, it has been found that the above mentioned process for making the container ready beforehand also has certain disadvantages. Also when the container's li~ting loops are made ready after filling it implies some drawbacks. Thus the capacity of the filling apparatus will be reduced because of the time i~ takes for the operator to place the lifting :Loops onto a hook which will press them togetherO If this operation is carried out after the container is filled in order to im-prove the capacity of the apparatus, then the total filling operation will be more labour-consuming because an extra operator is needed for making the container's loops ready.
Further, the container's form itself implies tha~ it is necessary to use filling apparatuses of a special type in order to obtain an efficient filling and an effective process for making such containers ready. The fact that such special filling apparatuses are not available everywhere where filling of such containers can take place, has accordingly hindered a widespread use of the container.
The lifting loops, which may have a total width corresponding to half the container's circumference, implies that the pro-cess of joining together the loops to one lifting loop becomes somewhat labour~consuming. The wide loops also result in cer-tain disadvantages when the container shall be placed up on the filling apparatus or connected to it. Accordingly, there has been a need for making these operations easier and less labour consuming.
~ t~
One would like to continue having some form of lifting loops because of -the good experience with integrated lifting loops which after filling of bulk material in the container were joined together by tape for making a lifting loop. During further transport of the container such liEting loops had been found to be suitable for placing lifting hooks, forks and other means used for lifting and transporting the con-tainer into the lifting loop.
When fork trucks shall be used, one should apply special lifting devices whereupon the lifting loop is placed. This device is connected to the forks. lt has further been found that the tape applied in certain cases can be damaged during the further lifting and transport of the container~ especially if there in this connection are applied lifting forks having sharp edges, the load carrying fibres of the lifting loop can be damaged.
In such cases there is therefore a need for a better protec-tion of the fibres in the lifting loop and a way of joining which can endure the strain when lifting forks are applied~
The object of the present invention was to arrive at lifting loops ha~ing a permanent lifting handle which eould endure the strain they would be exposed to during application of the flexible containerO Another object was to be able to apply all types of filling apparatuses and lifting devices such that application of the container would not be limited by the need for special equipment. A further object was to arrive at a rational way of making flexible containers with integrated lifting loops equipped with a permanent lifting handle.
Manufacture of the lifting handle itself by joinina the lifting loops at the filling station had been found to be rather labour-consuming and additionally it required special hooks on tne filling apparatus. To start with one desired to q"~
make a liEting handle in order -to be independent of special lif-t-ing hooks, and -the inventors soon found that it would be easiest to make the lif-ting handle at the same place as the container it-self was made.
If the empty con-tainer is equipped with lifting loops having a permanent lifting handle, -the -transport of such empty containers will be more e~pensive than for -the usual containers because of the larger volume to be transported. But it was found that the filling operation itself became so much easier when one used containers having permanent lifting handle -that the advan-tages would be far greater than the disadvantages of transporting empty containers.
The problem now was how the permanent lifting handle could be formed most appropriately. It was found tha-t the method would vary somewhat according to what ]cind of base material the container was made from. For containers having integrated lift-ing loops it can be generally said that one has two types of base material, i.e. flat-woven or round-woven textile. The round-woven textile can be joined together in different ways. For instance such that one either attains lif-ting loops having a seam or lifting loops without a seam, but -then containers with side seams. It was surprisingly found that it was possible to make the lifting handle principally in the same way for the different types of base materials.
Accordingly, the present invention provides a flexible container to be filled with bulk materlal and comprising inte-grated lifting loops, charac-terized in that -the lifting loop or -4a--loops axe joined together in at :Leas-t one lifting loop having a permanent lifting handle comprising lifting loops folded or pressed together and joined together a-t a lifting area by means of glue or at least one seam.
The present inven-tion also provides a me-thod for making the immediately aforesaid flexible container, and made from fla-t--woven or lound-woven base material which is joined to form a-t least one lif-ting 1oop characterized in that that part of -the base ma~erial which shal:L form -the lif-ting loops are folded or pressed together to a-t :least one lifting area to which there is fastened a piece of material to at least the lower part of the area, where b~ a permanent lifting handle is formed.
The width of the lif-ting loops is hereby reduced to a suitable dimensiorl for forming a lifcing loop with a lifting handle. ~t was Lurther found that the total width of the lifting loop at least should be reduced so much that the width of -the liftlng area became maximum 1/6 of the container's circumference.
One t~(J~
would then obtain a lifting loop with a lifting handle which was appropriate and advantageous for all operations as filling, handling, lifting, transport and discharge of the container. In certain cases one desires to avoid wear on the load~carrying fibres of the lifting loop formed in this way.
In that case the lifting handle itself is equipped with an extra piece of materialO This piece of material should at least cover the lower part of the ]ifting handle, that means that part which will lie against the lifting device, Eor in-stance a lifting fork, a hook or the like, when the flexible container is lifted and/or transported. This extra piece of material can also be in the form of a sleeve such that it sur-rounds the lifting handle. Said piece of material must be made from a strong material which can endure the strains it is ex-posed to and which can be joined to the material o. the lift-ing loops such that a permanent lifting point is obtained.
This piece of material will preferably consist of woven material, for instance of the same type which is used in the container itself.
The special features of the invention are stated in the following claims.
The invention will now be further explained with reference to the drawings.
igure 1 shows a flat~woven base material for a flexible container.
igure 2 shows a round-woven base material for a flexible container having lifting loops comprising a seam~
i~ure 3 shows a round-woven base material for a flexible container having liEting loops without seams.
igure 4 shows a lifting loop with a lifting handle seen from above.
Figure 1 shows a base material 1 consisting of two halves A
and B, and with side edges 3 and a cut 8 which makes it possible to form a container having a double bottom. The piece of material 1 is first folded against the centre such that those parts which later on shall form the lifting loops 6 are collected in the rniddle of a folding line 2 in an area 4 which is less or like 1/6 of the container's circumerence~ In most cases it will be an advantage to have a lifting area which is le~s than 1/10 of said circumference.
The side edges 3 will now be placed a5 shown by the reference number 3'. The area 4 marked out on the lifting loops 6 is then joined by means of glue or preferably at least one seam.
One can fasten a piece of material 5 over the area 4, for in-stance by means of a seam. The piece of material 5 can be fastened around the area 4 such that it gets the form of a sleeve. The material 1 is folded over the line 2 such that the halves A and B cover each other. Thereupon the container is sewn along the side edges 3 and at the bottom, whereby a com-pletely finished container with lifting loops 6 and a lifting handle 10 comprising the protecting piece of material SO The piece of material 5 can be of woven material, for instance of the same type as that used in the container itself, or of some other suitable material which is strong enough to endure the strains it will be exposed to during Further handlina of the container. The piece of material 5 might have a special colour such that the lifting point is clearly marked out, and it can for instance be applied as colour code for the type of con-tainer used or the material which shall be transported. On figure 5 there is shown application of an extra piece of material 5, but the permanent lifting handle 10 can as pre-viously 1nentioned also be made without this piece of material, that is by just ~oining together the area 4~
Figure 2 shows a round-woven base material 1. This must first be joined in its upper part by seams 11 for forming at least one lifting loop 60 Thereupon there is made a cut in the upper .3~
part of the piece of material for forming openings 7 in which lifting devices as a hook or fork can be placed, and which also can be used as filling opening for the bulk material which shall be transported or stored in the container. The lifting area 4 is then formed by folding together the loops 6 and joining by means of glue or at least one seamO A piece of material 5 can then be fastenecl to the area 4 in the same way as described in connection with figure 1, and one gets the permanent likting handle 10. The container's bottom can be formed in known manner, and the container is then ready for being filled.
In figure 3 it is also shown a round-woven base material 1, but here one has already made the lifting loops 6 ready beforehand, and the lifting area 4 can be formed by bending or folding together these as described above. The container's side edges are then joined by seams 11 which terminate some-what below the lifting loops such that openings 7 are formed.
Unles one desires to make the container with a special bottom, the container will now be ready for filling.
In figure 4 is a lifting loop 6 with lifting handle 10 shown seen from above. 'rhe piece of material 5 which here is only fastened at the lower part of the lifting handle, is not visible on the figure~ but the seams 9 for fastening the piece of material 5 to the area 4 is shown. The openings 7 are here shown equally large, but if so desired the opening which shall be use~ as filling opening can be made somewhat larger than the other one.
A container made according to the invention is ready for being connected directly to the filling apparatus. The filling pipe is put into one of the openings 7, and the container can be blown up by air and thereupon filled with free flowing material. During the filling operation the lifting loops can be placed on a hook on the filling apparatus, but strictly 4.~2~
speaking this is not necessary. It has in fact been found that the blown up cvntainer can stand freely and without sub~
stantial support sideways during the filling operation. As soon as the container is filled it is just to close its inner bay, and then it is ready for beirlg transported.
By the present invention one has obtained a rational manuEac-ture of a container with lifting loop having a permanent lifting handle. Filling of such readymade containers can be carried out quickly and easily with fewer operators than usually is necessary when one has to form the lifting point at the filling station. The filling operation itself will accordingly be strongly simplified, as placement of the con-tainer on special lifting hooks or forming of lifting handles will not be necessary. The container will thereby be ready for further transport as soon as it is filled and the inner bag is closed. The capacity of the filling apparatus can be uitilized maximally, and the total operation for filling and making the container ready for further transport will be less labour-consuming.
c sS e,~ 7/ ~'~ / \`
An'c~ccntit~l ~ vantage which is obtained by the present in-vention is that one is not dependent on complicated or special filling apparatuses or lifting devices. Thus one can use lift-ing ~orks which easily can be put in under the well-defined lifting handle, which is thus strongly made that it can endure several handling operations of the filled container without damaging the lifting handle or the lifting loop by the hand-ling devices. Even when especially rough lifting devices are used, the lifting handle according to the invention comprising the protecting piece of material 5 will secure the fibres in the lifting loop against wear.
Claims (9)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Flexible container to be filled with bulk material and comprising integrated lifting loops, characterized in that the lifting loop or loops are joined together in at least one lifting loop having a permanent lifting handle comprising lifting loops folded or pressed together and joined together at a lifting area by means of glue or at least one seam.
2. Flexible container according to claim 1,characterized in that the permanent lifting handle comprises a piece of mat-erial which at least covers the lower part of the lifting area.
3. Flexible container according to claim 1 or 2, character-ized in that around the lifting area there is fastened a piece of material in the form of a sleeve.
4. Flexible container according to claim 1, characterized in that the lifting loop or loops are joined together in a lift-ing area having a width being less than or equal to 1/6 of the container's circumference.
5. Method for making a flexible container according to claim 1, and made from flat-woven or round-woven base material which is joined to form at least one lifting loop characterized in that that part of the base material which shall form the lifting loops are folded or pressed together to at least one lifting area to which there is fastened a piece of material to at least the lower part of the area, whereby a permanent lifting handle is formed.
6. Method according to claim 5, characterized in that the part of the base material to be folded or pressed together is first joined, and then the piece of material is fastened to or around a lifting area, by sewing for forming the lifting handle.
7. Method according to claim 5, characterized in that the base material comprising two halves A and B first are folded together against the centre of the material for forming the lifting loops in a small area on each side of the folding line, whereupon this area is joined together to the lifting area and that it thereto is fastened a piece of material having the same width as the area and having a length which at least is long enough to make the material cover the lower part of the lifting area and that the material then is folded over the line such that the halves A and B cover each other, and whereupon the container's side and bottom seams are sewn.
8. Method according to claim 5, characterized in that the base material consists of a round-woven piece of material that is first joined at the upper part by means of a seam for forming lifting loops, then openings are formed at the upper part of the side edges, and the lifting loops are joined in at least one lifting area which is joined by gluing or sewing, whereupon a piece of material that covers at least the lower part of the lifting area is fastened to the lifting area, then the lower part of the piece of material is joined for forming of the container's bottom.
9. Flexible container according to claim 1 or 2, character-ized in that around the lifting area there is fastened a piece of woven material in the form of a sleeve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO830718 | 1983-03-02 | ||
| NO830718A NO151855C (en) | 1983-03-02 | 1983-03-02 | LARGE BAG WITH INTEGRATED LOFT BELTS AND PROCEDURE FOR ITS MANUFACTURING |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1200218A true CA1200218A (en) | 1986-02-04 |
Family
ID=19886980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000447338A Expired CA1200218A (en) | 1983-03-02 | 1984-02-14 | Flexible container to be filled with bulk material and method for its manufacture |
Country Status (18)
| Country | Link |
|---|---|
| EP (1) | EP0118112B1 (en) |
| JP (1) | JPS59174481A (en) |
| AT (1) | ATE44512T1 (en) |
| AU (1) | AU568533B2 (en) |
| BR (1) | BR8401008A (en) |
| CA (1) | CA1200218A (en) |
| DE (1) | DE3478921D1 (en) |
| DK (1) | DK153012C (en) |
| ES (2) | ES8502642A1 (en) |
| FI (1) | FI69810B (en) |
| HK (1) | HK119293A (en) |
| IE (1) | IE55554B1 (en) |
| NO (2) | NO151855C (en) |
| NZ (1) | NZ207325A (en) |
| PT (1) | PT78164B (en) |
| SU (1) | SU1574165A3 (en) |
| TR (1) | TR25365A (en) |
| UA (1) | UA7086A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES296232Y (en) * | 1984-12-21 | 1988-04-16 | Norsk Hydro A.S. | A FLEXIBLE CONTAINER FOR THE TRANSPORT AND STORAGE OF BULK MATERIAL |
| NO158294C (en) * | 1984-12-21 | 1988-08-17 | Norsk Hydro As | LARGE BAG WITH INTEGRATED LIFTING BELTS AND WITH SEPARATE LOST ROOM. |
| CH675108A5 (en) * | 1988-05-03 | 1990-08-31 | Huemer E Unistrap Verpackung | |
| IE76456B1 (en) * | 1990-09-11 | 1997-10-22 | Christopher C Cuddy | Bulk containers |
| EP0576499B1 (en) * | 1991-03-21 | 1996-06-05 | AgriTay (Holdings) Limited | Method of manufacturing flexible containers |
| ES2049121B1 (en) * | 1991-04-23 | 1994-11-16 | Condepols Sa | METHOD OF MAKING A HANDLE FOR SUSPENSION IN FLEXIBLE CONTAINERS OF BULK PRODUCTS. |
| GB9301635D0 (en) * | 1993-01-27 | 1993-03-17 | Norsk Hydro As | Method and apparatus |
| AT401502B (en) * | 1993-10-25 | 1996-09-25 | Storsack Austria Gmbh | FLEXIBLE CONTAINER |
| TW526160B (en) * | 2001-01-21 | 2003-04-01 | Luen Sing Tang | Package |
| JP6105944B2 (en) * | 2013-01-15 | 2017-03-29 | 前田工繊株式会社 | Sandbag |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS439857Y1 (en) * | 1964-08-29 | 1968-04-30 | ||
| GB1581438A (en) * | 1977-09-05 | 1980-12-17 | Lolift Uk Ltd | Containers |
| GB1581437A (en) * | 1977-09-06 | 1980-12-17 | Lolift Uk Ltd | Containers |
| GB2042469B (en) * | 1979-02-23 | 1983-08-17 | Toyama Ind | Flexible skips |
-
1983
- 1983-03-02 NO NO830718A patent/NO151855C/en not_active IP Right Cessation
-
1984
- 1984-02-09 IE IE297/84A patent/IE55554B1/en not_active IP Right Cessation
- 1984-02-14 CA CA000447338A patent/CA1200218A/en not_active Expired
- 1984-02-17 AU AU24687/84A patent/AU568533B2/en not_active Expired
- 1984-02-20 ES ES529873A patent/ES8502642A1/en not_active Expired
- 1984-02-24 FI FI840763A patent/FI69810B/en not_active Application Discontinuation
- 1984-02-28 PT PT78164A patent/PT78164B/en unknown
- 1984-02-29 NZ NZ207325A patent/NZ207325A/en unknown
- 1984-02-29 TR TR84/1476A patent/TR25365A/en unknown
- 1984-02-29 DK DK134884A patent/DK153012C/en not_active IP Right Cessation
- 1984-03-01 DE DE8484102195T patent/DE3478921D1/en not_active Expired
- 1984-03-01 SU SU843711229A patent/SU1574165A3/en active
- 1984-03-01 AT AT84102195T patent/ATE44512T1/en not_active IP Right Cessation
- 1984-03-01 UA UA3711229A patent/UA7086A1/en unknown
- 1984-03-01 EP EP84102195A patent/EP0118112B1/en not_active Expired
- 1984-03-02 BR BR8401008A patent/BR8401008A/en not_active IP Right Cessation
- 1984-03-02 JP JP59038915A patent/JPS59174481A/en active Granted
- 1984-06-28 ES ES1984280269U patent/ES280269Y/en not_active Expired
-
1992
- 1992-01-31 NO NO920426A patent/NO174818B/en not_active Application Discontinuation
-
1993
- 1993-11-04 HK HK1192/93A patent/HK119293A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IE55554B1 (en) | 1990-10-24 |
| DK153012B (en) | 1988-06-06 |
| JPH0446830B2 (en) | 1992-07-31 |
| JPS59174481A (en) | 1984-10-02 |
| ES529873A0 (en) | 1985-01-16 |
| NO920426L (en) | 1984-09-03 |
| TR25365A (en) | 1993-01-07 |
| FI840763A0 (en) | 1984-02-24 |
| NO830718L (en) | 1984-09-03 |
| SU1574165A3 (en) | 1990-06-23 |
| BR8401008A (en) | 1984-10-09 |
| EP0118112B1 (en) | 1989-07-12 |
| AU2468784A (en) | 1984-09-06 |
| DK134884A (en) | 1984-09-03 |
| IE840297L (en) | 1984-09-02 |
| PT78164A (en) | 1984-03-01 |
| ES280269U (en) | 1985-04-16 |
| FI69810B (en) | 1985-12-31 |
| UA7086A1 (en) | 1995-06-30 |
| DK134884D0 (en) | 1984-02-29 |
| NO174818B (en) | 1994-04-05 |
| EP0118112A2 (en) | 1984-09-12 |
| NZ207325A (en) | 1988-03-30 |
| NO151855B (en) | 1985-03-11 |
| ATE44512T1 (en) | 1989-07-15 |
| AU568533B2 (en) | 1988-01-07 |
| PT78164B (en) | 1986-03-21 |
| DK153012C (en) | 1988-10-17 |
| ES280269Y (en) | 1986-04-01 |
| EP0118112A3 (en) | 1985-11-06 |
| NO920426D0 (en) | 1992-01-31 |
| HK119293A (en) | 1993-11-12 |
| DE3478921D1 (en) | 1989-08-17 |
| NO151855C (en) | 1991-12-10 |
| ES8502642A1 (en) | 1985-01-16 |
| FI840763A (en) | 1984-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4194652A (en) | Collapsible receptacle for flowable materials | |
| US4143796A (en) | Collapsible receptacle for flowable materials | |
| US4759473A (en) | Collapsible receptacle with integral sling | |
| US4224970A (en) | Collapsible receptacle for flowable materials | |
| US5967579A (en) | Industrial diaper for flexible bulk containers | |
| US5690253A (en) | Large bulk liquid squeeze bag | |
| KR950000585B1 (en) | Cargo bag and method of forming same | |
| US4480766A (en) | Bulk transport bag | |
| CA1200218A (en) | Flexible container to be filled with bulk material and method for its manufacture | |
| US4917507A (en) | Bag | |
| US6336308B1 (en) | Packaging arrangement including at least two stacks of goods and a method of forming the packaging arrangement | |
| EP2379426B1 (en) | Bag for bulk goods, and method for use in storing and/or transporting bulk goods | |
| US5924796A (en) | One piece flexible intermediate bulk container and process for manufacturing same | |
| US4832506A (en) | Flexible container to be filled with bulk material and method for its manufacture | |
| GB2050298A (en) | Collapsible receptacle with integral sling | |
| EP0050845A1 (en) | Flexible container having four lifting loops | |
| GB1581438A (en) | Containers | |
| EP0107942B1 (en) | Storage bag | |
| NZ221343A (en) | Flexible bulk container with permanent lifting handle made from tubular material | |
| EP0072168B1 (en) | Improvements in bulk transport bags | |
| US5862650A (en) | Method for removing objects from a transportation or storage container | |
| JPS6231432Y2 (en) | ||
| US20230249904A1 (en) | Portable waste disposal bag | |
| AU2002331427B2 (en) | Packaging assembly | |
| JP2550547Y2 (en) | Pull band container |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |