DE2231318A1 - CONTAINER MADE OF FLEXIBLE MATERIAL WITH CLOSURE - Google Patents

Description

VEREENIGDE OCTROOIBUREAUX

426-17 D.

June 21, 1972

DESCRIPTION II G

to the patent application of

NICOLON N.V.,

Seat

Enschede, (Netherlands) regarding:

CONTAINER MADE OF FLEXIBLE JIATERIAL WITH CLOSURE.

The invention relates to a container, consisting essentially of a sleeve made of flexible material with arranged thereon Closures.

In addition to the use of rigid containers, the use of containers made of flexible material for packaging, transport and Storage of bulk materials, such as powdery, granular and also liquid material, too.

The strong, flexible container wall material used for this purpose is provided with closures that can consist of a sewn or welded seam, for example, - or that can be formed by gluing the flexible container wall material along certain closure seams. It is also possible, especially if it does not concern liquids, to form packs by wrapping a certain amount of bulk material in the flexible material and tying the bundle thus formed to form a pack by wrapping it with suitable material.

209884/0237

Such containers are known in cylindrical and square shape or also in cushion shape.

The filling is often done through an opening in a glued, welded or sewn sealing seam is left open, and on which a filling tube can protrude. This filling hose must be closed after the filling process, which is done, for example, by tying with suitable material, such as rope or cord can.

For loading such containers, for example with a rigging, a forklift or similar devices, loops, hooks or eyes must be attached to the container wall material or the container must placed in a frame or on a pallet. Sometimes ν are also protruding sections with holes through which the container in order to whose handling can be detected, molded onto the flexible container wall material.

Closing the previously known flexible container after filling is time-consuming, cumbersome and often hardly reliable Way feasible. Next it is difficult to get a good grip on such To achieve containers, which complicates the transport and storage. Containers that have these disadvantages to a lesser extent are against it complicated in their construction and therefore expensive.

The purpose of the invention is that of the above-mentioned and the like resulting in the previously known containers of the type in question Avoid disadvantages.

For this purpose, it is proposed according to the invention in a container of the type mentioned at the outset that the flexible material essentially is tubular and tied in the manner of a sack at at least one end of the envelope and by being surrounded by an associated one Insert closure body is held from material exhibiting its own strength, of which closure body the circumference in cross section at least abundantly at at least one end of the closure body is less than the inner circumference of the uncut open shell end and of which insert closure body the circumference is at least somewhat smaller in a central area between the two ends of the closure body than in the case of the first

209884/0237

close body end.

According to the invention, the insert closure body preferably has one from its central region to at least one end of the closure body Over at least part of the distance up to the relevant end face, an essentially conically widening shape. Any suitable material arrives to a certain extent as the material Plant, mineral or synthetic material with its own strength can be considered, such as wood, plastic, metal etc.

The flexible container wall material is then tied up by folding in any suitable manner, e.g. by hand, around the Insert closure body center area with a narrowed circumference relative to a wider front end inserted into the constriction and through ÜD lacing e.g. with rope, textile tape, metal tape and the like Katerial attached so that the folded through the constriction Container wall material is thereby held firmly in place. Especially when using an insert with a diabolo-like shape Forces which are exerted on the insert closure body in order to pull it out of the constriction result in that the constricted container wall material adheres even more tightly to the outer circumferential side surface which widens from the narrowest central circumferential area of the insert closure body. All of this causes the insert closure body to be constricted tightly into the wedges flexible container wall material. That tied up under folds The container wall material is at the point of constriction due to the duplication of the material as a result of the formation of folds also reinforced, so that a closure that offers particularly great resistance against external forces has been achieved.

According to a further feature of the invention, the flexible Container wall material tied up at one end of the envelope by the arrangement of a strap and the envelope end tied up in this way to the Be turned inside of the container before the filling is arranged in the container. This can be done by the fact that the other The end of the open container is completely turned inside out.

By arranging said strapping at a distance from the

209884/0237

The end of the envelope concerned can be that which passes the encircling The end of the envelope should be fanned out to some extent after the - still empty - container has been turned inside out. The material to be filled into the container then ensures that the strapping material is well secured by pressing the fanned out container material against the envelope end due to its weight at the turned-in end of the cover.

According to a further feature of the invention, it is also possible that at a relatively small distance from the one envelope end circumferential edge of the flexible container material in With respect to the original envelope circumference, a circumferential organ that is considerably narrowed and partially constricting this envelope end is and via the opening formed within the constriction in the interior of the container a considerably larger, similar one to this opening flexible piece of material as the container material is placed in a sealing manner. Such a narrowed circumferential organ can be made from a piece of rope, There are cord or similar binding material that is pulled through the hem and is tightened with its protruding ends, whereupon the ends are knotted together and cut past the knot. Instead of such a binder, a proportionate Stiff ring must be worked into the hem, in which case, so that the ring can be sewn in properly, the hem is kept very wide shall be. The seam is preferably formed on the originally outer side of the cover - and then the cover is turned inside out. The pressure of the The material to be filled into the container ensures that the piece of material covering the opening is secured.

To empty such a container, the insert closure body in the other end of the envelope does not generally need to be removed, but the piece of material placed over the opening can be cut through a new piece of flexible material through the opening such a container can be used several times.

According to a further variant embodiment of the invention it is provided that at a relatively large distance from the a sleeve end circumferential seam of the flexible container material

209884/0237

Compared to the original envelope circumference, the circumference is considerably narrower Organ is arranged with partial constriction of the container wall at the relevant point and that extends from the hem to the relevant Sheath end extending flexible container material in the form of a tube protruding through the opening formed within the constriction near this sheath end is tied by tying this hose. Here, too, the hem is preferably on top of the originally outer one Shell side formed and then the shell turned inside out. The tube formed can be at least partially before, during or after the filling be pushed in again and pulled out again as required to empty the container.

To eliminate the disadvantage that a hem has to be made, two stiff rings with different diameters can also be used a similar tube can be molded onto the sleeve end provided with the insert closure body. In this case the execution is like this procure that the flexible container material at a relatively large distance from the one end of the envelope by a relative to the original Envelope circumference considerably narrowed ring organ protrudes through to the interior of the container and in this way turned inward flexible container material under the fanning out of the flexible container material adjacent to said ring member a relatively wider ring organ is arranged essentially concentrically to the former ring organ, while the flexible container material against the end of the casing in question forms a tube which protrudes from the inside of the container through the first ring member near this end of the casing is constricted by tying. If desired, an unstiff ring can also be used for the first ring member. It is too it is not absolutely necessary to form a tube in this case: by placing the rings a little closer to the one in question The end of the envelope can be the opening formed within the narrowest ring organ can also be covered in a manner similar to that described above for the embodiment with a hem, by a flexible piece of material placed over the two ring members inside the container.

In such a container with an insert closure body according to the invention to close one end of the envelope after the

• 209884/0237

However, filling this container can be used to close the other end of the envelope - i.e. before filling the container - according to another Another feature of the invention on that other envelope is the flexible container material constricted there by a constriction with a duch this encompassed second insert closure body of the type mentioned by turning the envelope with its originally outer end face be put inside the container.

When filling with bulk material or with liquid material, this will tend to stick the insert closure body in the wedge firmly in the manner already mentioned above in the opening of the container wall material formed within the constriction.

After the container turned inside out in this way has been filled, the other end can then be encompassed by one of the constricted container wall material Insert closure body and using binding material outside around the constriction can also be closed.

According to a further feature of the invention, the insert closure body can be arranged on a front end with a fixedly arranged thereon Means should be provided for the purpose of its detection in order to be able to convey the container through the intermediary of this insert closure body. This Means can then for example consist of an eyelet, a hook or a loop, which is in the material having its own strength of the insert closure body is anchored or it can also protrude through it and behind the other end face of the insert closure body be secured.

When lifting on such a hook or such an eyelet or loop, the insert closure body pulls through its against the Facing increasing circumference in the opening within the constriction of the container wall material firmly, so that a particularly solid Closure is obtained.

(According to a special embodiment, the insert closure body be made at least on its outer circumference to some extent elastic, which especially when used for liquids or very fine, granular or powdery bulk material in the container an even better seal is obtained.

According to the invention it is also possible to use the insert closure body

209884/0237

with a lockable one that extends between its front ends To provide passage.

In this way, the insert closure body for pulling or Emptying of the container can be used without the constriction needing to be released.

If the material to be accommodated in the container easily causes bridging, the closure according to the invention is special as a result beneficial that by loosening and undoing the constriction When the end of the container is opened in this way, the full inner transverse profile of the container becomes available for fast, undisturbed filling or emptying.

The following flexible container material can be considered: olefin fabric, optionally with a cover, and other fabrics made of natural or synthetic raw materials, optionally coated with natural rubber, PVC, synthetic rubber or the like Materials, as well as optionally reinforced paper laminates, foils and similar materials.

As already explained, starting from a tubular casing made of the flexible container wall material, an insert closure body, as described above.

A binding organ such as a cable, rope, Cord or similar material into consideration.

However, it is also possible to use a clamping ring instead. The possibility that the container wall material will be damaged is comparatively small, and that due to the constriction and the doubling of material that occurs at the detection point of such a clamping ring.

Can also be used to hold the constricted container wall material Advantageously, a rope that clamps itself when lifting is used suitable for transporting the container.

The invention also relates to an insert closure body made of material exhibiting its own strength, the circumference of which in cross section in a central area between its front ends is at least somewhat less than or bordering on the Front ends, which insert closure body is apparently intended for use in a container is intended that must be closed, as set out above.

209884/02 37

Important advantages of the construction with closure according to Invention are:

- those exerted on the filled and stored or raised container Forces are evenly distributed over the entire circumference, in a way that is not the case with the previously known containers that mass could be achieved, creating a considerable safety margin for the strength of the flexible container wall material used is achieved and, if desired, material thickness can be saved;

- if from flexible container wall material already manufactured in tubular form is assumed, the container can be closed without the use of any assembly technology such as welding, sewing or gluing will;

- the choice of the container content for a particular tube shape Cross profile can easily be done by using longer or shorter pieces of tubular container wall material;

- through a wide selection of the average size for the insert closure body can be a compromise between container wall material which is less well foldable when constricting and a nonetheless satisfactory one Closure can be achieved at the periphery of the narrowed insert closure body center;

- When filling and emptying, the fullest one is the widest, if desired inner cross profile of the applied tubular container wall body available, which can significantly accelerate and facilitate filling and emptying, especially when it is sensitive to bridging powdery and granular materials;

- the closure can be taken quickly and reliably in a cheap way ' Application of the insert closure body can be brought about;

- the execution can be kept so cheap that there are many things Applications can be economically justified without hesitation to throw away the container after a single use;

- the insert closure body, especially if its scope differs from that Area with the narrowest cross-sectional circumference, gradually expanding towards both sides, are excellent for arranging all kinds of things Auxiliary pieces on them, of which hooks, eyelets,

209884/0237

Passages, e.g. with a tap, or a closure body, clamping rings etc. are mentioned ;.

- The insert closure body can also consist of several to be put together Parts be formed;

- You can also think of liquid-tight plastic bags or tubes which are attached to such an insert closure body and which when inserted into the through the flexible container wall material formed cavity are received and when filling with a liquid to the interior of this flexible container wall material limiting invest, so that in this way a cheaper, more expedient and reliable liquid container is obtained;

- If an insert closure body is used on both sides of the tubular casing, one that connects these closure bodies Organ be attached to each of these closure body, which can be achieved that when lifting the container on the an insert closure body the other contributes to transferring lifting forces to the flexible container wall material; also can so it is avoided that the lower insert closure body is lost when removing the constriction and / or into the poured out Material arrives.

The invention will now be explained with reference to the drawing, in which an embodiment and a modification according to the invention are shown schematically, explained in more detail.

Show it:

Fig. 1 shows a section with a view of a container according to the invention with a sealingly arranged insert verse on both sides closed body;

2 shows a side view of a diabolo-shaped insert closure body with a lifting eye anchored to this;

Fig. 3-6 various modified design modifications in section for bottom closures, without using an insert closure body for the container according to the invention made of flexible material.

According to FIGS. 1 and 2, a container, generally indicated by the reference number 1, consists essentially of a hose body 2 made of strong flexible material and two diabolo-shaped ones

20988 A / 0237

Insert closure bodies 3 and 4ι while with binding material, e.g. nylon cord, at 5 and 6, the material of the hose body 2 is pressed at its two open ends to the circumferential surfaces of the insert closure body 3 and 4 constricted in the middle with this flexible wall material tied together and tied by wrapping.

According to the exemplary embodiment shown, a strong polyethylene fabric was used as the flexible container wall material for the hose body applied with a suitable coating.

The two diabolo-shaped insert closure bodies 3 and 4 are made of wood.

The lower insert closure body 3 in FIG. 1 is initially tied up in the manner as shown for the insert closure body 4 Container wall material arranged, whereupon the tube body 2 is everted, i.e. turned, whereby this insert closure body 3 can assume its position shown in FIG. 1, below, in which the setting material 5 is located in the interior of the container space.

In the left half of FIG. 1, as a modification, a thin sack made of plastic film material is indicated by dashed lines and with the Reference number 7 denotes which sack with its opening edge adjoins and around the one mouth of a between the end faces of the insert closure body 4 extending longitudinal passage, which is arranged in this closure body, sealingly at the lower End face of this insert closure body, e.g. by gluing, is attached. In the longitudinal passage shown with the reference number 8, a closure is indicated schematically at 9. Through the passage 8 with the closure 9, the plastic sack 7 can be filled and emptied, which sack is delimiting the inside of the hose body during filling made of flexible material and at the bottom of the face of the lower insert closure body facing the interior of the container 1 and at the top in FIG. 1 3 creates.

Fig. 2 shows a likewise on a considerably enlarged scale substantially diabolo-shaped insert closure body 10, but in this case not with a symmetrical shape with respect to the narrowest Outer peripheral part, like the insert closure body 3 according to FIG. 1. Above

209884/0237

protrudes a lifting eye 11, which is arranged at the end of a rod 12, which in the figure, the insert closure body 10 in the longitudinal direction of protrudes downwards and is fixed with nuts 13 and 14.

It has been found in relevant tests that a container of the Pig. 1 reproduced type, made from a 1.78 m long hose made of polyethylene fabric with a tensile strength in chain? direction of 10 kg / cm and a circumference of 2.85 m, provided with a cover, is particularly suitable for carrying 500 kg of powdery material with to pick up, transport and store with a specific weight of 1. In these experiments it has been further shown that too considerably larger weights in containers according to the invention in a clever, can be included in a cost-saving and advantageous manner.

Although shown in Figures 1 and 2 insert closure body which widen conically from the insert closure means area towards the two front ends, an insert closure body can also be successful be used, which only expands towards the end protruding into the container, which is true for both the lower End - whereby the extended front end was outwards before the eversion and also applies to the upper end or the lifting side.

In Figures 3-6, the shell or tubular container body is - in which only the lower end is shown in all of these figures - also denoted by the reference number 2.

According to FIG. 3, the sheath 2 is tied at the bottom by means of a constriction 15 made of rope or similar binding material. This constriction 15 is tightened around the originally outer side of the envelope end, whereupon the envelope 2 is turned inside out. Reference numeral 2 ¹ indicates the end of the flexible container wall material in a fan-like expanded state relative to the arranged constriction 15, whereby this constriction 15 remains firmly in its correct place when the container is filled.

According to Fig. 4, a hem is formed by means of a stitching 16, at the interior of which is the reference number 17 in this figure. The folding of the relevant end of the envelope to form a hem was originally carried out to the outside and after the stitching 16 had been made, the casing was warmed. With 18 a stiff ring is indicated in this Fig. 4,

209884/0237

which is included in the hem. With 19 a flexible piece of material of the same nature as used for the cover 2 and which covers the opening 20 within the bing 18 with a wide overlapping edge (19 ^{1) is indicated.} Due to the pressure of the filling material 21 in the container on the overlap edge 19 ', this cover piece 19 made of flexible material will cover the opening 20 permanently.

According to FIG. 5, a stitching seam is provided at 26, which has a hem with a space 27 at a considerable distance from the relevant end of the envelope with 28 is a piece of binding material circulating through space 27, as indicated by a rope or a cord, with which the original circumference of the sheath 2 is narrowed at the hem in such a way that an opening 30 with is formed to a significantly lesser extent.

With 29 a tube formed by the cover end part on the hem seam 26 is shown, which through the opening-JO to protrudes outside the container and with a constriction 31 in the vicinity the outer end of the sheath is tied.

FIG. 6 shows the same as in FIG. 5, but without the use of a seam formed by a stitching seam. Be here two rings 37 and 38 with different diameters are used. The lower end of the envelope is first through the opening 40 of the narrowest Ring 37 pushed through and the ring 37 pushed a little onto the end of the envelope in question.- Then the envelope is turned so that the through the opening 40 inserted through the sleeve end protrudes into the container formed. In this end the wider ring 38 is under the - at 2 'fans of the flexible material adjoining the ring 37, whereupon the end of the envelope finally passes through the opening 40 as a tube is pulled out. This hose is tied up with a constriction 41, whereupon it - as can be seen from FIG. 6 - is partially again is pushed through the opening 40 into the interior of the container.

It will be clear that the invention in no way applies to the exemplary embodiments described above and shown in the drawing is limited and that all kinds of modifications are possible within the scope of the invention.

209884/0237

Claims (1)

Expectations 1. ) Container, essentially consisting of a cover made of flexible material with closures arranged on it, characterized in that the flexible material is essentially tubular and tied up in the manner of a sack at at least one end of the cover and is made up of an associated insert closure body material having its own strength is recorded, from which closure body the circumference in cross section. at least one end of the closure body is at least considerably smaller than the inner circumference of the unthreaded open shell end, and of which insert closure body the circumference in a central region between the two ends of the closure body is at least somewhat smaller than that of the first-mentioned closure body end. 2. Container with associated insert closure body according to claim 1, characterized in that the insert closure body extends from its central region to at least the one closure body front end at least a part of the distance up to the relevant end face has an essentially conically widening shape. 3. Container with associated insert closure body after at least One of the preceding claims, characterized in that the flexible container wall material at one end of the envelope by the arrangement a constriction and the so constricted end of the envelope to the Inside of the container is turned inside out. 4. Container with associated insert closure body according to claim 1 or 2, characterized in that at a relatively small distance from the one end of the envelope circumferential edge of the flexible Container material a circumferential organ that is orliobically narrowed in relation to the original envelope circumference with partial constriction this end of the envelope is arranged and via the opening formed within the constriction in the interior of the container a considerable effect on this opening i ^ rösaeres, similar flexible piece of material as the container material is placed in a sealing manner. ¹ J. Container with associated insert closure body according to claim 1 or 2, characterized in that in a relatively large 209 3 84/0237 At a distance from the circumferential edge of the flexible container material that encircles one end of the envelope, a circumferential organ that is considerably narrowed compared to the original circumference of the envelope is arranged with partial constriction of the container wall at the point in question , and the flexible container material extending from the hem to the end of the envelope in question is in the form of a tube through the one formed within the constriction The opening protruding near this end of the envelope is tied up by the surrounding of this tube. 6. Container with associated insert closure body according to claim or 5, characterized in that the seam is formed under the inward folding of the flexible container material towards the inside of the envelope. 7. Container with associated insert closure body according to claim or 2, characterized in that the flexible container material at a relatively large distance from the one end of the envelope through a Ring organ that is considerably narrowed relative to the original circumference of the hull extends through to the inside of the container and in the flexible container material turned inward in this way under the fanning out of the flexible container material adjacent to said ring member a relatively wider ring organ is arranged essentially concentrically to the former ring organ, while the flexible container material against the end of the envelope in question forms a tube which protrudes from the inside of the container through the first ring member and is close to the latter Sheath end is tied up by tying. 8. Container with associated insert closure body according to claim or 2, characterized in that the flexible container material constricted at one end of the envelope is encompassed by one through the latter second Kinsatzverschlußkorper of the type mentioned by turning inside out the shell with its originally outer front end is slipped into the interior of the container. 9. Containers with associated insert lock body according to at least one of the preceding claims, characterized in that the Insert closure body at one end with a fixedly arranged on it Means is provided for the purpose of its detection in order to be able to convey the container through the intermediary of this insert closure body. 10. Container with associated insert closure body after at least one of the preceding claims, characterized in that the 20988 A / 0237 Insert closure body with a somewhat elastic outer peripheral wall is provided. __ 11. Container with associated insert closure body after at least one of the preceding claims, characterized in that the Insert closure body provided with a closable passage extending between the two insert closure body ends is. 12. Container with associated insert closure body after at least One of the preceding claims, characterized in that the flexible container material consists of a fabric of a material that is selected from the group of natural and synthetic raw materials all from olefins. 13 · Containers with the associated insert closure body according to at least One of claims 1 to 6, characterized in that the flexible container wall material consists of a material selected from the groups of paper laminates, foils or the like in web and sheet form is selected materials. 14 · Container according to at least one of claims 7 and 8, characterized in that the flexible container wall material with a solidification is provided. 15 · Containers with the associated insert closure body according to at least One of claims 7 to 9, characterized in that the flexible container material is provided with a cover. 16. Container with associated insert closure body according to claim 10, characterized in that the coating consists of a material selected from the group consisting of natural rubber, PVC, synthetic rubber and the like Material is selected. 17 · Containers with the associated insert closure body according to at least one of the preceding claims, characterized in that on both sides of the tubular casing a constriction covered closure body is provided. 18. Container with associated insert closure body according to at least one of the preceding claims, characterized in that the order container material tied up through the insert closure body a binding organ from the group of cables, types of rope and the like for Tying suitable materials includes is kept. 209884/0237. 1 9 · Container with associated insert closure body after at least one of claims 1 to 12, characterized in that the around the Insert closure body constricted container material through a Clamping ring is held. 20. Container with two associated insert closure bodies At least one of the preceding claims, characterized in that an organ connecting the two insert closure bodies on each this insert closure body is attached. 21. Container with associated insert closure body after at least One of the preceding claims, characterized in that the tubular container material is thereby brought into its tubular shape is that sheet or web material is sewn, glued, welded or the like. is. 22. Container with associated insert closure body after at least One of the preceding claims, characterized in that the container material tied up around the insert closure body through a self-clamping strand is held, which is suitable for conveying the container on it. 23 · Insert closure body made of its own strength Material whose circumference in cross section in a central area between its front ends is at least somewhat smaller than on the or bordering at least one forehead, apparently intended for Use in a container according to one or more of the preceding claims. 24 · Insert closure body according to claim 18, characterized by a bag or hose made of film-like material attached to it in such a way that it is bounded by the inner boundary of the Container wall made of flexible material for enclosing a liquid-tight can create inner container space. 25 · Insert closure body according to at least one of claims 17 and 18, characterized in that the closure body adjoining its front end has such a shape that it can thus be used as a pallet can serve. 209884/0237 Blank page