DE8610230U1 - Large-capacity transport bag for bulk goods - Google Patents

Description

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The invention relates to a large-capacity transport |

bags for bulk goods that are covered by the preamble of the claim

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y \ j In the case of the transport bags of this type i known up to now, the bag wall is either made of round fabric or with a | or several material blanks formed, which are connected to | mutual overlapping edges are sewn. Unless | With these bags a transport of powdery or | grain is materials or even of materials which have undergone working \ are Sonders sensitive to moisture must be intended as \ additional inner bag suitable for this purpose it is usually from \ polyethylene or other water-impermeable plastic \ films for use, said inner bag one with \ the outer pouch wall and the bottom sewn to them in the _; have essentially matching spatial shape. From 4 EP-OS 0 168 974 it is also known that this
Inner bag may be sewn or to facilitate their filling, either directly at least to the outer pouch wall 'alternatively indirectly via an adhesive tape \ thereby prior to suturing the outer bag wall at the | Inner bag is attached on the outside or in the case of one also in front of | see use of a non-adhesive plastic strip {is welded on beforehand. This assurance is j of the inner bag one for the soil to the bag wall connecting überwendlings- or safety stitch comparable more light-optimal ^f.

The invention characterized by the claims solves the
A task , a large-capacity transport bag for bulk goods

specified type in such a way that transport is possible even without the use of a special inner bag

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insured against powdery and granular materials can be·

The advantages attainable with the inventive transport bag \ advantages lie essentially in the fact that the additionally provided now to each seam foam strip whose sewing does not create particular problems, which previously had been present for a shipment of powdered or granular materials Austrittsmöyliciikeitsn at the seams well sealed as it was previously only considered possible with the use of a special inner bag. An optimally provided additional securing of each foam strip with a sealing tape that is still sewn on can then even ensure a moisture-tight seal, which of course then requires the use of a fiber fabric for the transport bag, which by means of a suitable lamination prevents moisture from penetrating the filling space of the bag. In any case, a transport bag is therefore also provided which, compared to the known transport bags having an inner bag, can be offered at a significantly lower price and is also significantly less problematic in use.

An embodiment of the large-capacity transport bag according to the invention is shown schematically in the drawing and is described in more detail below. It shows

Figure 1 is a perspective view of the transport

bag and

Figure 2 is a sectional view along the line

II-II according to Figure 1.

The transport bag shown in FIG. 1 has a three-dimensional shape known from EP-OS 0 140 346 A 2 and therefore has a bag wall 1, which is made from a cut of a synthetic fiber fabric with a tensile strength of at least

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about 197 N / cm ² . The bag wall 1 is connected to a j over the full Beütelhöhe reaching seam 2 for a

with the blank formed overlap 3 divided, wherein the connecting seam 2 as one with a normal

j needle sewing machine sewn zigzag seam is formed.

At the top of the bag wall 1 are four approximately U-shaped carrying arms 4 together with one of its two loop ends each overlapping fabric strip 5 also sewn by means of a zigzag seam. Furthermore, the Bag wall 1 by means of an overcast or safety seam 6, a base 7 sewn separately and optimally also Lid 8, with the bottom 7 also having a centrally sewn emptying tube 9 and the cover 8 have a centrally sewn filling tube 10.

As is now shown in the sectional view of Figure 2, the bottom seam 6 is with the additional use of a Foam strip 11 is formed, an arrangement between the edge regions of the bag wall 1 and the bottom 7 which are sewn to one another and are not sewn with one Excess width protrudes in the shape of a wedge into the filling space of the bag. The wedge shape of the unstitched excess width of this foam strip 11 is obtained with a material displacement caused when the bottom is sewn to the bag wall 1, wherein the undeformed material thickness of the foam strip is chosen so that in this displacement of material through the excess width protruding into the filling space of the bag provides a secure seal for the bottom seam 6. For one Another improvement in this seal is the foam strip 11 still secured by means of an additionally sewn sealing tape 12, which is parallel to the bottom seam guided and preferably arranged on the non-knotted side provision fulfills the primary purpose with which ma ter ia! caused inelasticity to compensate the elastic behavior of the bottom seam 6 and thus the dense arrangement of the Foam strip 11 to further improve.

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The above-described provision of a foam strip 11 for the bottom seam 6 of the booty egg can be optimal for the Connection seam 2 of the bag wall 1 and also for the seam / with which the lid 8 with the bag wall 1 is sewn * The reference to the use of a foam strip is not intended to be limiting as the same effect can also be achieved with sealing strips made of other materials.

Claims (7)

'.. · * * r. *'. *, **. * Hans-Jürgen Müller Gerhard D. Schupfner Hans-Peter Gauger Telephone: (O 89) 4 70 60 55/56 Patentanwälte Telex: 5.23016 Postfach 80 13 69 L atentanwa Ite Telegram / cable: Lucjle-Grahn-Strafle 38 European Patent Attorneys Zetapatent® Munich D-8000 Munich ao Mandataires en brevets europeens Lo-3303 Claims 1. Large-capacity transport bags for bulk goods preferably synthetic fiber fabric, in which a base and, optimally, a lid on each edge by means of a Overcast or a safety seam with the bag are sewn to the wall, characterized in that the base and the possibly provided cover each have an edge area thereof underlayed foam strips are sewn to the bag wall. 2. Large-capacity transport bag according to claim 1, characterized in that the b, ^ w. everyone Foam strips have a wedge-shaped protruding excess width into the filling space of the bag. 3. Large-capacity transport bag according to claim 1 or 2, characterized in that the or each Foam strips by means of an additionally sewn, is secured parallel to the associated overcast or safety seam guided sealing tape. 4. Large-capacity transport bag according to claim 3, characterized in that the or each Sealing tape has an arrangement on the non-knotted side of the overcast or safety seam. Mil · a »ti It ι · t »iff Iff ·> * ■ It Ilf • • I 1111 * * I) I 5. Large-capacity transport bag according to one of claims 1 to 4, wherein the bag wall at least one over the full Bag-height connecting seam for two overlaps arranged edge areas of a material blank is subdivided, characterized in that at the or each connecting seam of the bag wall between the associated overlap edges of the or the material blanks arranged foam strips is sewn. 6. Large-capacity transport bag according to claim 5, characterized in that the or each Foam strips on the or each dividing the bag wall The connecting seam has an excess width protruding in the shape of a wedge into the filling space of the bag. 7. Large-capacity transport bag according to one of claims 1 to 6, characterized in that the extra width of the or each foam strip unsewn and their Wedge shape is obtained with a material displacement caused during sewing. ti suffered