FI85257B - BOEJLIG BEHAOLLARE FOER TRANSPORT OCH LAGRING AV MASSAGODS. - Google Patents

Abstract

The invention relates to a flexible container (10) of fabric material for transporting and storing bulk cargo. The container (10) comprises a shell (11) a bottom (12) and a closable filling opening (15). The container (10) can be lifted from its upper end, and the joints forming the container (10) are made by seaming or gluing. At least the inner surface of the container (10) is made of a seamable material, and the shell (11) of the container (10) is provided with a filling opening (15). The lifting part of the container (10) is formed into a united fold bundle (18). <IMAGE>

Description

85257

Flexible container for transport and storage of bulk goods Böjlig behällare för transport och lagring av massagods 5

The invention relates to a flexible container of fabric material for the transport and storage of bulk goods, which container comprises a jacket, a bottom and a closable filling opening, which container can be lifted from its upper end 10, the container lifting part of which is formed as an assembled pleated bundle and the container-forming connections by sealing or gluing.

Such flexible containers, i.e. the so-called the big bags are made of either round-15 woven fabric or flat fabric. One common fabric material is round woven polypropylene fabric. Even the bottom of the large bag and the lifting loops are usually formed by means of sutures. Such big bags are provided with a plastic inner bag to make the big bag tight.

20 Today, big bags are also made of coated fabric material or fabric laminate. In these known large sacks, the coating or film surface is on the outer surface of the fabric material, which makes it difficult and uncertain to provide a completely tight base by sealing, because it is usually not possible to achieve a tight connection between the fabric surfaces. In such large sacks known from the prior art, the upper end is formed as a pleated bundle, but since it is difficult to connect the fabric surfaces tightly, it has been necessary to use e.g. riding strap to close the top tightly. Another method of closing the top end used has been that the edge of the top end has been turned twice and the outer surfaces of the fabric material-30 have been seamed together. Even in this embodiment, the mouth of the large bag is still open, although the fold closes the upper end, the upper end is not tight. As a result, the seamed edge still has to be covered with a separate patch to provide a tight structure.

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In large bag solutions known from the prior art, in which the film surface is on the outer surface of the fabric material, there is a disadvantage that when the film surface breaks, the big bag is no longer tight. In a large bag solution in which the customer himself folds after filling the large bag and performs the closing himself, there is a disadvantage that the filling of the large bag is slow and the closing result is very uncertain.

5 There are also a number of problems with large bag solutions that use a separate inner bag. The filling and closing of the large bag is slow and, in addition, the inner bag is susceptible to damage both during filling and during subsequent transport and storage, because some part of the inner bag remains unprotected and is therefore very susceptible to breakage.

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The object of the invention is to provide an improvement on the currently known big bag solutions. It is a more detailed object of the invention to provide a large bag in which the required tightness is provided in a reliable manner, whereby the use of an inner bag is not necessary. Yet another object of the invention is to provide a large bag which allows the large bag to be easily and quickly filled and lifted in a simple and reliable manner.

The objects of the invention are achieved by a flexible container, which is mainly characterized in that at least the inner surface of the container is made of a sealable material, that the shell of the container is provided with a filling opening provided with a closing device.

In the flexible container according to the invention, the inner surface 25 of the fabric material is coated, a film is laminated to the inner surface of the fabric material or a film is attached to the inner surface of the fabric material, which is at least partially attached to the fabric. The outer surface of the flexible container according to the invention is a base fabric material, the outer surface of the container fabric material is coated or a film is laminated to the outer surface of the container fabric material.

In the container according to the invention, the closing device is a cuff surrounding the filling opening, which is permanently connected to the outer or inner surface of the container. The closure device may also be a closure flap 35 connected in the vicinity of the filling opening, which is partially attached to the outer surface of the container and which covers the filling opening.

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In the container according to the invention, the pleated bundle extends from the top edge downwards by a distance of at least 10 mm. In this case, the pleated bundle is preferably seamed at least at this distance. However, this is not necessary, but in principle it is sufficient that the pleated bundle is seamed S at least at its upper part, in which case the rest of the pleated bundle may be unsealed. The pleated bundle can be provided with a hole for the lifting member. The pleated nip tree can also be integrated with a tensioning scissor device or the pleated nipple can be folded down and fastened with a belt, thus forming an opening for the lifting member. The pleated bundle can also be tightened with 10 ropes to form a lifting loop, or a lifting loop can be connected to the pleated bundle by making a connection between the lifting loop and the pleated bundle.

The container according to the invention can be formed from a double-folded piece of fabric material or from two superimposed pieces of fabric-15 material or a wide piece of fabric material bent into a hose. Bending a wide piece of fabric material into a hose so that the film surface of the coated or laminated fabric hose becomes the inner surface of the hose allows sealing or gluing in the simplest possible way.

20

Numerous significant advantages are achieved with the flexible container according to the invention. The solution according to the invention makes it possible to obtain a tight connection only by sealing the inner surfaces of the fabric material, or by gluing, in which case it is not necessary to ensure the tightness 25 outside the flexible container. The solution according to the invention also reduces the amount of fabric material used and the manufacturing work, but nevertheless a better tightness is achieved. Due to the reliable tightness in the large bag according to the invention, the use of an inner bag is unnecessary. Of course, if desired, the big bag can be provided with an inner bag if there are special reasons for using the inner bag, but the use of the inner bag in the solution according to the invention is by no means necessary.

In the large bag according to the invention, the lifting part is formed as an assembled pleated bundle in connection with the manufacture of the large bag, and a lifting member known per se is integrated into the pleated bundle. The big bag according to the invention is provided with a slit in the casing, which acts as a filling opening.

4 85257 Such a filling opening is closed in accordance with the invention by means of a suitable closing device.

In the big bag according to the invention, the fabric material protects the film part as the inner surface 5 and as a result the tightness is better maintained in the event of external damage to the big bag.

The big bag solution according to the invention speeds up the filling of the big bag and makes it easier to close and ensures a good closing result. In contrast, previously known solutions using a separate inner bag for large sacks have both a slow filling of the large sack and a slow seal. In addition, the inner bag is susceptible to damage both during filling and during subsequent transport and storage, since some part of the inner bag remains unprotected and is therefore very sensitive to failure.

The invention will be explained in detail with reference to some preferred embodiments of the invention shown in the figures of the accompanying drawings, to which, however, the invention is not intended to be exclusively limited.

Figure 1 shows a preferred embodiment of a sack blank for a large sack according to the invention.

Figure 2 shows another preferred embodiment of a sack blank for a large sack according to the invention.

Figure 3 shows a third preferred embodiment of a sack blank for a large sack according to the invention.

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Figure 4 shows a large bag according to the invention, in which the upper end of the large bag is formed in a preferred manner and the triangles of the bottom of the large bag in a preferred embodiment, respectively.

Figure 5 shows an alternative embodiment for attaching triangles to the bottom of a large bag.

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Figure 6 shows another preferred embodiment of a large bag lifting part solution according to the invention.

Figure 7 shows a third preferred embodiment of a large bag lifting part solution according to the invention.

Figure 8 shows a fourth preferred embodiment of a large bag lifting part solution according to the invention.

Figure 9 shows a fifth preferred embodiment of a large bag lifting part solution according to the invention.

In the embodiment according to Figure 1, the sack blank of the large bag is generally indicated by reference numeral 10a. In this embodiment, the sack blank 10a is formed of a double folded piece of fabric material. The large sack blank 10a thus has a jacket 11 and a fold in the base part 12. The fabric material according to the invention consists of a base material, the inner surface of which is a sealable material. In one embodiment, the fabric material is coated on the inside. In another embodiment, there is a laminated film on the inside of the fabric material. In a third embodiment, a film is attached to the inside of the fabric material and is at least partially attached to the fabric. In one embodiment, the outer surface of the fabric material is a base fabric material only. In another embodiment, the outer surface of the fabric material is coated. In a third embodiment, a film is laminated to the outer surface of the fabric material.

According to Fig. 1, a slit 15 for a filling opening is formed in the jacket of the large sack blank 10a and preferably in the upper part of the jacket 11. The sheath 11 of the shank-30 is mated at its edges by the seams 14 and from its open top 13 by the seam 14, whereby a completely tight large bag blank 10a is formed. The edge seams 14 can also be adhesive seams, and the upper part can be sealed not only by sealing but also by gluing or double-sided tape.

In the embodiment according to Figure 2, the large sack blank 10b is formed from two separate superimposed pieces of fabric material, in which case the open base part 12 has to be fused or glued with a seam 14. If desired, the base part 12 can be provided with a base foot. Otherwise, the embodiment shown in Fig. 2 is the same as the embodiment shown in Fig. 1.

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In the embodiment according to Fig. 3, the big bag blank 10c is formed of a sufficiently wide piece of fabric material, which is bent into a hose and sealed or glued only at one of its edges with a seam 14. Otherwise, the embodiment shown in Fig. 3 is the same as the embodiment shown in Fig. 10. Alternatively, the wide piece of fabric material may be bent into a hose so that the seamed or glued hose does not have a vertical seam at the edge, but the seams are located at the bottom and top of the bent hose. Also in this alternative embodiment, the slit 15 is formed as shown in Figure 3.

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According to Figure 4, the bottom triangles 17 of the big bag 10 are folded against the sides of the jacket 11 and connected to the sides either from the whole area of the bottom triangles 17 or only from partial areas. Bottom triangles 17 can be formed, e.g., on a mandrel. When the big bag blank 10a, 10b or 10c is pulled over the inch 20, the resulting bottom triangles 17 can be bent against the sides of the sheath 11. The formation of the bottom triangles 17 must, of course, be done before the joint 13 is joined.

A suitable closure device, such as a cuff or a closure 16, is attached around the slit 15 and secured to either the inner or outer surface of the large bag 10 so as to form a tight fit with respect to the surface. Such a joint circumvents the entire slit 15. After filling the large bag 10, the cuff is closed, e.g. by sealing, whereby the large bag 10 is completely tight. When a closure is used, a closure 16 is attached to the top or other edge of the slit 15 and when the large bag 10 is filled, the slit 15 is closed with the closure 16 either by sealing, gluing or double sided tape. Of course, a separate patch, such as tape, can also be used as the closure 16, but the closure 16 attached in advance is more practical.

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According to Fig. 4, the upper part of the large bag 10 is folded to form a tight pleated bundle 18. In Fig. 4, the pleated bundle 18 is provided with a tight cuff 19. The use of the cuff 19 is not necessary, as the pleat spacing surfaces can be joined together so that the pleated bundle 18 is uniform and as such. In Fig. 4, a hole 20 for a lifting member is formed in the pleated bundle 18.

Fig. 5 is otherwise the same as Fig. 4, but in this embodiment the bottom triangles 17 are folded into the surface of the bottom 12 of the large bag 10.

10

In the embodiments according to Figures 4 and 5, the lifting member can be connected to the pleated bundle 18, e.g. by threading the lifting loop from the hole 20 and the ends of the lifting loop are connected together in a suitable manner. As a lifting loop, it is possible to use, for example, a rope, the ends of which are tied together, or a metal hook, the ends of which are connected.

In the embodiment according to Fig. 6, a scissor lifting device 21 is attached, which is attached to the pleated bundle 18. The scissor lifting device 21 tightens when it is subjected to a lifting movement, i.e. the scissor lifting device 21 is subjected to traction.

In the embodiment according to Figure 7, the pleat bundle 18 is bent in a bend, whereby the pleat bundle 18 consists of two branches 18a and 18b. The bent pleated bundle 18 is fastened with a belt 22, whereby the arms 25 18a and 18b form an opening 23 through which a lifting member can be threaded. The space 24 between the branches 18a and 18b can be sealed, glued or provided with double-sided tape. The end of the branch 18b of the downwardly bent pleated bundle 18 can be reinforced with a thickening 25. Such reinforcement can be performed before forming the pleat, e.g. by placing 30 film strips across the web. In this case, a wedge effect is created when the big bag 10 is lifted, whereby the lifting part of the big bag 10 is subjected to traction.

In the embodiment according to Fig. 8, a lifting loop 26 is connected to the pleated bundle 18. The connection 27 between the lifting loop 26 and the pleated bundle 18 can be made by gluing, seaming, even sewing or riveting, as long as it is ensured that in the connection methods , the intact seam is also left below the formed holes.

In the embodiment according to Fig. 9, the pleated bundle 18 is formed such that the pleated bundle 18 expands upwards, preferably conically upwards. A tension loop or closure device 28 or some other similar locking device is placed below the conical pleated bundle 18. Before closing the clamping loop 28, a lifting loop 26 is threaded. When the lifting loop 26 is lifted, the clamping loop 28 rises with the neck of the big bag upwards and finally locks in the conical part of the upper end of the pleated bundle 18. The closure device 28 may be a one-piece locked ring or, for example, a two-piece closure device.

Only some preferred embodiments of the invention have been described above, and it will be apparent to those skilled in the art that numerous modifications may be made to them within the scope of the inventive idea set out in the appended claims.

Claims (14)

A flexible container (10) of fabric material for transporting and storing pulp, which container (10) comprises a sheath (11), a bottom 5 (12) and a closable filling opening (15), which container (10) can be lifted up from one end thereof, wherein the lifting portion of the container (10) is formed into an assembled bundle (18) of folds and wherein the connections forming the container (10) are made by joining or bonding, characterized in that at least the inner surface 10 of the container (10) is of jointable material, that the manifold (11) of the container (10) is provided with a filling opening (15) provided with a closure device (16). Container according to claim 1, characterized in that the inner surface of the fabric material of the container (10) is coated. Container according to claim 1, characterized in that a laminated film is provided on the inner surface of the fabric material of the container (10). 20 Container according to claim 1, characterized in that a film is attached to the inner surface of the fabric material of the container (10), which is at least partially attached to the fabric. Container according to any of claims 1-4, characterized in that the closure device (16) is a film surrounding the filling opening (15), which is securely connected to the outer or inner surface of the container (10). Container according to any one of claims 1-4, characterized in that the closure device (16) consists of a closure patch connected in the vicinity of the filling opening (15), which is partially fixed to the outer surface of the container (10) which covers the filling opening ( 15). 35 12 35257 Container according to any one of claims 1-6, characterized in that the folding bundle (18) extends from the upper edge downwards over a distance of at least 10 mm. Container according to any of claims 1-7, characterized in that the bundle of folds (18) is provided with a shark (20) for a lifting member. Container according to any one of claims 1-7, characterized in that a scissor device (21) which extends in tension is integrated with the bundle (18) of folds. Container according to any one of claims 1-7, characterized in that the bundle (18) is folded downwardly and fastened with a banner (22), forming an opening (23) for a lifting member. Container according to any of claims 1-7, characterized in that the bundle (18) is folded with a rope to form a lifting loop. 20 Container according to any of claims 1-7, characterized in that a lifting link (26) is connected to the bundle (18) of folds. Container according to any one of claims 1-7, characterized in that the bundle (18) of creases is formed into a bundle of creases which expands eaten and that the lifting link (26) is read at the bundle (18) of creases. by means of a closure device (28) arranged below its extended portion. Container according to any of claims 1-13, characterized in that the container (10) is formed of a double-weighted piece of fabric material.