DE102020110307B4 - Geotextile sand container with quick release - Google Patents

Abstract

Geotextile sand container (1) for filling with a filling material, in particular for protection against erosion in coastal waters or inland waters, comprising a geotextile cover (2).
- a filling opening (3) and
- a quick-release fastener (5) extending in the longitudinal direction (4) of the filling opening (5), which is designed to close the filling opening (3) in a trickle-proof manner without tools,
wherein the quick-release fastener (5) is designed as a Velcro fastener and comprises a Velcro hook strip (6; 7; 8) or several Velcro hook strips (6; 7; 8), which are each designed to be brought into engagement with a fleece layer,
wherein the geotextile sleeve (2) comprises a non-woven fabric which is designed to form the looped layer for attaching the one or more hook and loop fastener tapes (6; 7; 8) (6; 7; 8).

Description

The invention relates to a geotextile sand container for filling with a filling material, in particular to protect against erosion on coastal waters or inland waters, and a method for producing a geotextile sand container.

Geotextile sand containers filled with a filling material and having a geotextile cover are known from different areas of application. Depending on their construction, in particular shape, size and material, the geotextile sand containers can be used temporarily or permanently as protection against mechanical influences, erosion protection, civil protection, coastal protection, scour protection or for sludge drainage.

the end WO 2013/117229 A1 a flexible bulk material container made of a fabric or a film with a fillable sack, which comprises a fluid-fillable stabilization container, is known. The stabilization container is designed to be fluid-tight and closable in an airtight manner in an upper partial area.

DE 102 46 582 A1 shows, for example, Velcro fasteners arranged between sand containers as connecting elements, which are intended to ensure sufficient stability and at the same time high flexibility of the sand container arrangement of protective walls.

The geotextile sand containers can be filled with filling material, especially in the vicinity of a place of use. A method and a device for the automatic filling of sandbags is, for example, from DE 10 2015 109 798 A1 famous.

After filling, the geotextile sand containers can be closed and taken to a place of use. For example, excavators or wheel loaders can be used to transport or load the geotextile sand containers, which grip the geotextile sand containers with grippers or shovels or load them onto forks. For positioning, the geotextile sand containers can be dropped from a height of up to three meters, for example.

It is fundamentally desirable to seal the geotextile sand containers in a spill-proof and tight manner and to make them resistant in order to avoid damage and the associated loss of filling material. This also ensures that the sand container can be used.

In order to be able to guarantee damage to the geotextile sand container during transport or loading and dropping onto a storage level in the area of the closure, a filling opening of the geotextile cover must be securely closed. It is known, for example, to sew up the filling opening on a construction site with a hand sewing machine. Alternatively, a closure by crimping a folded-over filling opening with steel rings using a crimping machine or crimping pliers is known.

A particular disadvantage of closing the filling opening by sewing or crimping is that trained personnel are required to use the sewing machine or the crimping machine or the crimping tool and to supply the devices with compressed air or electricity. A corresponding supply is not always possible, especially on construction sites with changing water levels and in a damp environment, or can only be implemented with great effort.

Another problem associated with the use of sewing machines or crimping machines is that they are susceptible to dirt and errors. Contamination or a fault can lead to a functional failure and result in high maintenance costs under construction site conditions and the need for frequent repairs. In addition, sewing machines, for example, are often not suitable for damp or wet environments. In order to avoid an electric shock, such sewing machines can therefore not be used for work in wet conditions.

A further disadvantage of closing the filling opening by sewing or crimping occurs with thick geotextiles, in particular with geotextiles with more than 1000 g/m ² . With thick geotextiles, sewing or crimping machines are often no longer able to guarantee a seam of the appropriate quality due to the thickness of the nonwoven fabric, and the needle in the sewing machine can often break.

the end WO 2005/005807 A1 For example, a bag is known which is made from a web of material and is essentially divided into sections of equal size, with every second section being filled with sand and sealed by gluing.

A disadvantage of closing the sand container by gluing is that the geotextile can be damaged when a load occurs due to a firm and inflexible gluing of the geotextile to the filling opening.

the end DE 37 03 033 C2 It is known that geotextile sand containers can be sewn, welded or glued after filling. For large-volume geotextile sand tanks, an additional cut-out circular non-woven fabric is provided to be laid on top of the fill material.

WO 2006/084358 A1 discloses an inner sack filled with a filler material and an outer sack extending longitudinally thereover such that the bottom of the outer sack abuts and covers the open top edge of the inner sack. Here, the outer sack can be smaller than the inner sack and can be attached to the inner sack by means of an adhesive tape or a Velcro fastener.

Closing the sand container with an additional outer sack or with an additional cut-out of non-woven fabric results in a complex closure of the sand container and additional material costs. More personnel or additional equipment are required to close large-volume sand containers in particular.

The previously known closure techniques, in particular by sewing, are often based on a seam or a closure in an edge area of the sand container. The disadvantage here is that with the usual horizontal arrangement of the sand container, the seam or the closure is open and can therefore be subjected to heavy stress.

In addition, the documents U.S. 2008/0080936 A1 and US 6,612,741 B1 famous.

It is therefore an object of the invention to provide a geotextile sand container which overcomes the aforementioned disadvantages and has a reliable closure while at the same time being easy to handle.

According to a first aspect of the invention, the stated object is achieved by a geotextile sand container for filling with a filling material, in particular to protect against erosion on coastal waters or inland waters, with a geotextile cover, comprising a filling opening and a quick-release fastener extending in the longitudinal direction of the filling opening, the is designed to close the filling opening without tools in a trickle-proof manner.

The invention is based, inter alia, on the finding that geotextile sand containers can preferably be partially prefabricated by producing a sleeve from a geotextile in a specific shape and size. The prefabricated geotextile envelopes can then be shipped to a site and filled near the site. In particular, additional closure elements and equipment for the closure are required to close these cases. The inventors have recognized that sealing with additional sealing elements and equipment involves complex and time-consuming work steps. For example, when sewing the filling opening on a construction site with a hand sewing machine, double sewing is often necessary. When crimping the turned-over filling opening with a crimping machine or crimping pliers, a plurality of steel rings are necessary in particular in order to be able to ensure a secure closure. In addition, the purchase of a sewing machine or a crimping machine or crimping pliers and the provision of the power supply on the construction site is associated with high costs. In relation to the construction project, the costs and the effort involved in purchasing are often not economical, especially with occasional use and on small construction sites. Rental of sewing machines or crimping machines is also disadvantageous from the point of view of a lender in terms of the high costs, in particular due to necessary repairs, maintenance and spare parts as well as having a sufficient number of sewing machines or crimping machines available.

According to the invention, a geotextile sand container is proposed which can be closed without tools. Such a geotextile sand container comprises a geotextile shell with a filling opening and a quick-release fastener that is designed to be closed without tools. The quick-release fastener is arranged at the filling opening and can be closed so that it cannot trickle. The configuration of the geotextile sand container according to the invention makes it possible to close the geotextile sand container after it has been filled without further technical aids, in particular manually by one or more users at a location.

Closing without tools is to be understood here in particular as meaning that neither conventional tools such as pliers, hammers, screwdrivers or wrenches nor special tools such as crimping pliers, crimping machines or sewing machines are required for closing.

The filling opening can preferably be formed in a first position and the quick-release fastener in a second position. In particular, the first position and the second position can adjoin one another. With this configuration, the first position can be selected in order to ensure a position that is optimized for the filling Afford. Analogously, the second position can be selected in order to ensure a position that is optimized for the loads occurring on the quick-release fastener and the resulting physical stresses.

The geotextile sleeve can preferably enclose an interior space of the geotextile sand container for receiving sand. Accordingly, a filling opening can be understood in particular as an open area of the geotextile covering through which the interior of the geotextile covering can be filled. The filling opening can preferably be formed at a head area of the geotextile cover or at a distance from the head area.

According to the invention, the geotextile sand container is not limited to the use of sand as filling material. In particular, the geotextile sand container can be designed to accommodate all filling materials. In particular, this can be all types of bulk goods, such as earth or earth-like bulk goods, or substances that have an increased water content and thus have a liquid or plastic consistency, or substances that are liquefied by the addition of fluids such as water or have a liquid consistency have, or be other particulate materials. For example, styrofoam balls can be used as filling material.

A quick-release fastener according to the invention can be understood to mean a fastener that can be closed quickly and easily. The quick-release fastener can preferably be arranged on the geotextile cover. Thus, in particular, there is no need for a separate closure element. For example, the quick-release fastener can be designed as an adhesive tape, an impregnated adhesive that can be activated by means of pressure, temperature or UV radiation, a Velcro fastener or a zipper.

The quick-release fastener can preferably be designed as a permanent fastener that fulfills its function in particular for scheduled usability. In this context, permanent can preferably be understood to mean at least a period of the planned use of the filled geotextile sand container. A planned period of use can preferably be up to ten years, more preferably up to 15 years, more preferably more than 15 years, in particular with complete coverage. Particularly preferably, the quick-release fastener can be designed in such a way that it retains the closed state under the effects and loads during filling and/or transport to the place of use.

For example, the geotextile cover may comprise a geotextile sheet and be sewn, thermally welded or bonded to a specified size and shape. In particular, the geotextile web can be folded together and sewn up at the side areas, so that the sewn geotextile web has a closed bottom area and closed side areas and thus forms a geotextile cover. Preferably, a head area opposite the closed bottom area can be designed to be open and form the filling opening.

The geotextile sand container can preferably be prefabricated in a factory, with the quick-release fastener being able to be attached to the geotextile cover in the factory. Alternatively, the geotextile cover - without a quick-release fastener - can be prefabricated in the factory. It can be provided here that the quick-release fastener is applied subsequently, preferably at the place of use. Particularly preferably, the quick-release fastener can be applied to the geotextile cover in the area of the filling opening without tools at the place of use.

The ready-to-use geotextile sand container allows the geotextile sand container to be closed after filling at the place of use without special prior knowledge and tools. Occupational safety can be increased in particular by eliminating the use of tools. Furthermore, both time savings and cost savings can thereby be achieved.

Thanks to the quick-release fastener, which can be closed without tools, the geotextile sand container can be closed particularly easily and securely at the same time. Furthermore, the degree of prefabrication of the geotextile sand containers can be increased.

The invention is not limited to use for securing sections of coast, even if it can be used here in a particularly advantageous and economical manner. Rather, a geotextile sand container described here can be used for all conceivable areas of application, such as securing inland banks, erosion control, scour protection, civil protection, sludge drainage or individual security of beach sections.

In principle, geotextile sand containers can preferably have an internal volume of up to 0.01 m ³ to 10 m ³ and preferably have an internal volume of more than 0.1 m ³ , 0.5 m ³ , 1 m ³ , 2 m ³ or 3 m ³ . In particular, geotextile sand containers can have heights of between 0.1 m and 5 m preferably have a height of more than 0.5 m, 1 m, 2 m or 3 m.

The quick-release fastener can preferably be arranged in a certain position of the geotextile cover, so that in a phase of use of the geotextile sand container there is essentially an equilibrium of forces between the external pressure and the internal pressure. Here, the quick-release fastener can be subjected to a permanent force directed normally to the quick-release fastener. The usage phase can preferably be understood to mean that the geotextile sand container is filled with filling material and is stacked and/or installed.

The quick-release fastener is designed as a Velcro fastener and comprises one or more Velcro hook strips, each designed to be engaged with a fleece layer.

In particular, it is known to use hook-and-loop fasteners in different areas of application in which a high degree of flexibility and the possibility of easy and quick release of the fastener are desired. Therefore, the invention was based on the finding that hook and loop fasteners are not suitable for a permanent and firm closure.

A hook and loop fastener is formed from a hook and loop layer and a fleece layer. The Velcro hook layer comprises a large number of barbs arranged next to one another, which are designed as hooks, mushroom heads or other rod elements with an undercut pointing from the head end to the foot end. The fleece layer has a large number of fiber loops in which the barbs of the hook layer can hook and thereby form the closure. The hook and loop layer is often formed on a hook and loop tape and the fleece layer on a fleece tape, which are fastened opposite one another on one side of the opening to be closed.

Surprisingly, it turned out that Velcro leads to a significant improvement in the strength and, as a result, the reliability of the fastener. In addition, it was recognized that the hook and loop fastener ensures a strong and secure closure regardless of a geotextile thickness. Compared to known types of closures, a stronger Velcro effect and thus even a stronger closure can be achieved with thicker geotextiles. In combination with the easy handling of hook and loop fasteners, this type of fastener represents a particularly advantageous variant.

A plurality of Velcro hook tapes can preferably be understood to mean two or more Velcro hook tapes. The quick-release fastener can thus include at least one Velcro hook strip in order to close the filling opening in a trickle-proof manner without the use of tools. Preferably, the plurality of Velcro hook tapes can have a first Velcro hook tape and/or a second Velcro hook tape.

The hook and loop hook tape or multiple hook and loop hook tapes may preferably be attached to or adapted to be attached to the geotextile sleeve. In a particularly preferred manner, the Velcro hook tape or the several Velcro hook tapes can be sewn on in the closure area of the geotextile cover, preferably during manufacture in the factory. Preferably, the hook and loop fastener tape or the multiple hook and loop hook tapes can be materially bonded in the closure area of the geotextile cover, for example glued on or welded. The fastening of the Velcro hook tape or the several Velcro hook tapes in the closure area of the geotextile sleeve can preferably be carried out during manufacture in the factory or at the point of use. In particular, the Velcro hook tape or the several Velcro hook tapes can also be double-sided and can be attached to a fleece layer in the closure area of the geotextile cover. Here, the hook and loop tape can preferably be attached to the fleece layer during manufacture in the factory or on the construction site. As a result, a degree of prefabrication can be increased and handling can be improved.

Preferably, the hook and loop fastener tape or the several hook and loop fastener tapes can consist of a material or comprise a material that has at least similar aging behavior and/or at least similar durability to a material of the shell of the geotextile sand container.

Particularly preferably, the Velcro hook tape or the several Velcro hook tapes can be designed as a hook tape or a mushroom head tape, which can be brought into engagement with a fleece layer on a counter surface of the geotextile cover.

The geotextile sleeve comprises a non-woven fabric which is designed to form the looped layer for attaching the one or more hook and loop fastener tapes.

According to this preferred development, the fleece layer can be formed by a section of the geotextile cover itself. Thus, there is preferably no need for an additional fleece element to be attached to the sleeve.

This configuration ensures particularly simple handling of the geotextile sand container. It is also advantageous that the entire geotextile cover comprises a nonwoven fabric or can be formed from it and thus forms a fleece layer. In this way, in particular, a faulty closure can be avoided and a particularly simple and rapid closure of the geotextile sand container can be made possible. This eliminates the need for specially trained personnel.

In addition, the use of a nonwoven increases the resilience of the geotextile cover. This can prevent damage when loads occur. Non-woven fabrics are particularly advantageous because, compared to woven or knitted fabrics, they have greater extensibility and are homogeneous in all directions. The bursting of the geotextile sand container can thus be avoided by an expanding yielding.

A non-woven fabric can preferably be understood to mean a structure made of fibers of limited length, continuous fibers or cut yarns of various types and origins, which are combined to form a fiber layer and connected to one another. The fibers joined together in the fiber layer are present without a preferred orientation and thus form a random layer. A structure of the nonwovens can preferably be coarser or finer depending on the desired properties. For example, a fine non-woven fabric can be arranged on an inside of the geotextile cover and a coarse non-woven fabric can be arranged as a roughness layer on an outside of the geotextile cover.

The structure of the nonwoven can preferably be adapted to a geometry of the hook tape or the several hook tapes, in particular to a geometry of the hooks or mushroom heads. A geometry of the hooks or mushroom heads can preferably be understood to mean a length of the hooks or mushroom heads, a shape of the hooks or mushroom heads or hooks or mushroom heads per unit area.

Furthermore, for example, the hook tape or mushroom head tape can be selected depending on the structure of the nonwoven used. As a result, geotextile sand containers with different properties can be closed using the same type of closure.

The non-woven fabric can preferably comprise different raw materials. The non-woven fabric can particularly preferably comprise or consist of polyethylene fibres, polypropylene fibres, polyester fibres, polyacrylic fibers and/or polyamide fibres. Nonwovens of this type are essentially non-rotting and thus ensure a long service life. In addition, these nonwovens are essentially UV-stable and have a high tear resistance, so that they can withstand mechanical stress. In particular, non-woven fabrics made from biodegradable raw materials can also be used.

Preferably, the geotextile sleeve can be made of the non-woven fabric. Alternatively, the geotextile sheath may preferably comprise or consist of a fabric or composite.

Furthermore, it is preferred that the Velcro hook tape or the several Velcro hook tapes is/are designed as a double-sided Velcro hook tape or double-sided Velcro hook tapes, in which a large number of Velcro hooks are arranged on an upper surface of the Velcro hook tape and a large number of Velcro hooks are arranged on an underside surface of the Velcro hook tape is, in particular in each case as a double-sided hook tape or a double-sided mushroom tape.

The Velcro hook tape or the several Velcro hook tapes can therefore preferably be prefabricated, double-sided elements that have hooks or mushroom heads on both sides. Particularly preferably, these can be produced by a so-called “back to back” connection of one-sided hook tapes and/or mushroom head tapes. In particular, the one-sided hook straps and/or mushroom head straps can be glued together. This "back-to-back" connection can be used, for example, to create a double-sided Velcro hook tape with different hook or mushroom head sides. For example, a Velcro hook tape can therefore have a first side with hooks and a second side with mushroom heads. Preferably, a double-sided mushroom head tape can comprise a first mushroom head tape and a second mushroom head tape, which have different mushroom head geometries. Preferably, a double-sided hook tape can also comprise a first hook tape and a second hook tape, which have different hook geometries. As a result, each side of the double-sided Velcro hook tape can be matched to its counter surface, i.e. its fleece, in particular the nonwoven fabric used, and thus an optimal bond can be achieved. This configuration is particularly advantageous when the geotextile cover comprises non-woven fabrics of different fineness or coarseness.

According to this embodiment, it can preferably be provided that an inner joint, in particular an adhesive bond, of the double-sided Velcro hook tape is stronger than the Velcro bond is. In particular, sufficient resistance to creep can be ensured.

The double-sided hook-and-loop tape can preferably be attached in the area of the opening as a quick-release fastener on the construction site. With this configuration, a quick-release fastener that is particularly easy to handle and at the same time reliable can be provided. It is preferred if the double-sided hook tape or the double-sided mushroom head tape, in particular the Velcro hook tape or the several Velcro hook tapes, is attached in the area of the quick-release fastener during manufacture in the factory. As a result, a degree of prefabrication can also be increased. Thus, this configuration enables a more efficient application of the Velcro hook tape or the several Velcro hook tapes.

The quick-release fastener using the double-sided hook and loop fastener tape or the multiple double-sided hook and loop fastener tapes enables extensive power transmission on both sides. In this case, the effective area and the force that can be transmitted over it can preferably remain almost constant, even if the Velcro hook strip tears due to excessive stretching and is thereby segmented.

This design also enables greater power transmission than, for example, sewn-on Velcro hook tapes. A sewn-on hook and loop tape can only transmit the forces that the seam between the hook and loop tape and the carrier can transmit.

In addition, the design can ensure a particularly favorable force vs. elongation behavior between the nonwoven fabric and the Velcro hook tape. In comparison, this force vs. elongation behavior is significantly less favorable with sewn-on Velcro hook tapes, since the seam, as the most rigid element, has to absorb the forces and can therefore tear, causing the entire closure to fail.

If reference is made to a position of the Velcro hooks of the double-sided Velcro hook tape or the double-sided Velcro hook tapes, position information, such as the top and bottom side, preferably refers to an arrangement of the double-sided Velcro hook tape or the double-sided Velcro hook tapes on the geotextile cover, with the underside surface of the Velcro hook tape essentially prefabricated on the geotextile cover, in particular on a fleece layer, Velcroed and the top surface of the Velcro hook tape can be provided for closing the geotextile sand container.

It is preferred that the underside surface of the double-sided hook and loop fastener tape or the multiple double-sided hook and loop fastener tapes is attached to the nonwoven fabric of the geotextile cover and the upper surface of the double-sided hook and loop fastener tape or the multiple double-sided hook and loop fastener tapes has a protective element that is releasably attached to the upper surface.

The protective member may preferably be applied to the top surface during a storage condition. A storage condition can be understood in particular as a condition of the geotextile sand container during storage, transport and filling. This can prevent the geotextile sand containers from closing or sticking together unintentionally, and simplified handling of the empty geotextile sand containers can be achieved. In particular, this can also ensure that the empty geotextile sand containers can be stacked and unstacked. In addition, the protective element also protects the top surface from dirt, which can affect the hook-and-loop property.

The protective element can preferably comprise a thin non-woven fabric or be formed from a thin non-woven fabric which has a low tendency to velcro. As a result, on the one hand, a secure connection of the protective element on the top surface during the storage state and, at the same time, a manual detachability of the protective element from the top surface by personnel can be made possible.

In a particularly preferred manner, the protective element can be applied to the top surface during manufacture in the factory. As a result, the handling of a prefabricated geotextile sand container can be improved.

According to a preferred embodiment, it is provided that the fleece layer has an extensibility that is different, in particular greater, than the extensibility of the Velcro hook tape.

With this preferred embodiment variant, a greater or lesser elongation of the fleece layer can be achieved in comparison to an elongation of the hook and loop tape, in particular with a matching load. The greater or lesser stretching of the fleece layer results in a transverse displacement. As a result, the hooks or mushroom heads can dig deep into the fleece layer and be entwined. As a result of this configuration, the stresses that occur, for example when tipping over or moving, strengthen a Velcro effect and thus a particularly strong and secure closure can be achieved. The geotextile cover preferably comprises a non-woven fabric layer in the area of the quick-release fastener, which forms the looped layer of the hook-and-loop fastener and which, under a corresponding load, has greater elasticity than the hook-and-loop tape.

Due to the stretchable design of the geotextile cover, it is particularly resistant to impact loads. Greater extensibility of the geotextile cover - especially if it forms the fleece layer - is advantageous in that the stretching of the fleece layer results in a relative transverse displacement of the fleece layer to the Velcro hook strip, for example when loads occur. As a result, the hooks or mushroom heads can dig deep into the fleece layer and be entwined by fibers of the fleece layer. Such loads can occur, for example, when standing, filled and closed geotextile sand containers tip over as a result of an impact and due to the movement of the filling material within the geotextile sand container or during loading and positioning. The result of this configuration is that the loads occurring when the item is tipped over or moved strengthen a hook-and-loop fastener effect and a particularly strong and secure closure can thus be achieved.

The preferred relatively more extensible design of the geotextile sleeve is particularly advantageous in that the filled and closed geotextile sand containers remain sealed even in the event of a fall from a height during transport to the site of use and during positioning.

Furthermore, it is preferred that the geotextile cover has a front wall, a rear wall, a closed bottom area, closed side areas and a head area opposite the bottom area, which forms a head end of the geotextile cover, with the filling opening being formed in the head area.

Preferably, the geotextile sleeve may have an open top. It is particularly preferred here if the geotextile cover is made from a geotextile web that is folded together and sewn, glued or welded at the side areas. A fold line can preferably form the closed bottom area.

A fold or fold line can preferably not only be understood as a “line” in the actual sense. Rather, a fold or fold line is to be understood as an area where the geotextile material is folded.

This configuration enables the geotextile sleeve to be produced in a particularly simple manner. In addition, the filling opening in the head area is advantageous in that the geotextile cover can be filled with the greatest possible filling volume.

According to a preferred development, the Velcro hook strip or the several Velcro hook strips comprise a first Velcro hook strip, which is arranged in an area of the head end, on an inside of the front wall, in order to be attached to an assigned counter surface on an inside of the rear wall in order to close the geotextile sand container. and/orwhich is arranged in a region of the head end, on an inside of the rear wall, in order to be fastened to an associated mating surface on an inside of the front wall in order to close the geotextile sand container.

In particular, the first Velcro hook strip can extend along the entire filling opening. If the entire head area is designed to be open and forms the filling opening, the first Velcro hook strip can preferably extend to the corners of the side areas.

In this case, the Velcro hook strip is particularly preferably arranged on an opening edge of the filling opening, in particular over an entire width. Furthermore, the Velcro hook strip can be arranged at a distance from the opening edge of the filling opening, in particular spaced such that the distance between the opening edge and the Velcro hook strip is in particular a maximum of 1/12, 1/14 or 1/16 of the total height of the geotextile sand container. The height can preferably be a distance between the top area and the bottom area.

This arrangement of the first Velcro hook strip allows the filling opening to be closed in a manner that prevents it from trickling. This arrangement enables the filling opening to be closed particularly easily and quickly after a filling process.

It is particularly preferred that the geotextile sand containers are essentially flat in an unfilled state, with the front wall preferably resting on the rear wall. According to this embodiment, the filling opening is to be kept open during filling, at least at the beginning or in particular during the entire filling process, and then to be closed by pressing the front wall and the rear wall together. This ensures simplified handling.

Preferably, the opposite surface can form the fleece layer and the Velcro hook tape can be designed as a hook tape or a mushroom head tape, preferably a double-sided hook tape or a double-sided mushroom head tape. The geotextile cover can particularly preferably comprise a nonwoven fabric and serve as a fleece layer. A fleece layer can preferably be arranged on the counter surface or be formed by it.

It is further preferred that the geotextile cover comprises a corner fold in each of the side areas in the area of the head end, which in each case forms an inwardly directed pocket in order to delimit the filling opening.

The corner flap can preferably be an additional protection against spillage in the area of the corners between the head area and the side areas. As a result, a particularly spill-proof configuration can be made possible.

The corner flap can preferably be designed as an additional section of non-woven material, which is folded and sewn in the side areas in the area of the filling opening. Preferably, the section of nonwoven fabric can be triangular, in particular as an isosceles or equilateral triangle, and folded together about a fold line. The folded sections of nonwoven fabric can preferably be attached to the side area, preferably sewn to the side areas, in such a way that one open side in each case faces an inner volume and the fold line faces the filling opening.

Particularly preferably, the corner fold can be arranged in the geotextile cover, in particular on the side areas, in such a way that the fold line lies on the opening edge of the filling opening. Furthermore, the fold line can be arranged at a distance from the opening edge of the filling opening, in particular spaced such that the distance between the opening edge and the fold line is in particular at most 1/20, 1/25 or 1/30 of the total height of the geotextile sand container. The height can preferably be a distance between the top area and the bottom area.

With this configuration, loads that preferably occur due to movements of the filling material, in particular during loading and positioning of filled and closed geotextile sand containers, can be at least partially redistributed to the corner flaps and thus to the side areas. As a result, a particularly secure and reliable closure of the filling opening can be achieved.

According to a preferred development, it is provided that the front wall is folded over into an interior space of the geotextile covering around a fold line that coincides with the head area and forms a wall fold, with the Velcro hook strip or several Velcro hook strips comprising/encompassing a first Velcro hook strip on the inside of the front wall is arranged on an end region of the wall fold opposite the fold line, in order to be fastened to an assigned mating surface on an inner side of the rear wall in order to close the geotextile sand container, and/or which is arranged at a distance from the head end on an inner side of the rear wall in order to be able to close the geotextile sand container on an assigned mating surface on the inside of the front wall to be velcroed to an end region of the wall cover opposite the fold line.

The panel fold may preferably have a dimension from the fold line to an edge of the front panel folded into the interior space which is at most 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/9 ,1/10, 1/11, 1/12, 1/13, 1/15, 1/18, 1/19 or 1/20 of the total height of the geotextile sand box. The height can preferably be a distance between the top area and the bottom area.

The arrangement on an end area of the wall fold opposite the fold line can preferably be understood as an arrangement at a distance from the head area, particularly preferably on the edge of the front wall folded over into the interior space. The first Velcro hook strip can be arranged in particular on a region of the rear wall opposite the edge of the front wall folded over into the interior. In particular, the first Velcro hook strip can also be spaced apart from the edge of the front wall or arranged on the corresponding opposite area of the rear wall. In particular, the distance between the edge and the fold line can be a maximum of 1/10, 1/15, 1/20, 1/25 or 1/30 of the height of the wall fold. The height of the wall fold can preferably be the distance between the fold line and the edge of the front wall folded over into the interior.

This configuration allows a pocket to be formed which is designed to accommodate filling material. In particular, if the filling material slips, such as when filled and closed geotextile sand containers tip over while standing, or when moving and positioning, it can slip into the wall envelope. As a result, forces occurring on the closure can preferably be redistributed and thus a particularly safe and reliable closure can be achieved. Furthermore, this configuration can preferably also prevent the filling material from trickling out at corner regions.

Furthermore, it is preferred that the geotextile sand container comprises a closure flap extending from the rear wall beyond the head end, which flap can be folded over onto an outer side of the front wall around a fold line coinciding with the head area, the Velcro hook strip or several Velcro hook strips comprising/comprising a second Velcro hook strip , which is arranged on a closure side of the closure flap at an end region opposite the fold line, in order to be hooked up to an associated mating surface on an outer side of the front wall in order to close the geotextile sand container, and/or which is arranged on an outer side of the front wall at a distance from the head end , in order to be velcroed to an assigned mating surface on a closure side of the closure flap at an end region opposite the hemming line in order to close the geotextile sand container.

The preferred embodiment described here provides for additional securing of the closure by means of the second Velcro hook strip, which is arranged on a closure flap. An arrangement at an end area opposite the fold line can preferably be understood as an arrangement at a distance from the head area. The closure flap which can be folded over onto the front wall can preferably additionally close the filling opening. The proposed arrangement of the second Velcro hook strip means that forces occurring on the closure can preferably be redistributed and a particularly secure and reliable closure can thus be achieved.

The closure flap may preferably have a dimension from the fold line to a top edge of the closure flap that is at least 1/20, 1/18, 1/16, 1/14, 1/12, 1/10, 1/9, 1/8 , 1/7, 1/6, 1/5, 1/4 or 1/3 of the total height of the geotextile sand box. The height can preferably be a distance between the top area and the bottom area.

The second Velcro hook strip can be arranged in particular on the upper edge of the closure flap. The second Velcro hook strip can preferably be arranged at a distance from the top edge of the closure flap. In particular, the distance between the top edge and the second Velcro hook strip can be a maximum of 1/10, 1/15, 1/20, 1/25 or 1/30 of the dimension of the closure flap from the top edge to the hem line.

A closure side of the closure flap can preferably be understood as meaning the side that can be folded over onto the outside of the front wall and in particular can be hooked onto the outside of the front wall.

If reference is made to insides and outsides, this information relates to a geotextile cover, with an inside, for example the front wall and/or the rear wall, delimiting an interior of the geotextile cover and an outside being formed opposite the corresponding inside. Accordingly, the interior space can be delimited by inner sides and designed to accommodate filling material. Optionally, a wall fold, in particular a side of the wall fold facing the interior, can form part of the inside of the front wall.

• - wobei das Kletthakenband oder die mehreren Kletthakenbänder ein erstes Kletthakenband umfasst/umfassen: das in einem Bereich des Kopfendes, auf einer Innenseite der Vorderwand angeordnet ist, um zum Verschluss des geotextilen Sandbehälters auf einer zugeordneten Gegenfläche an einer Innenseite der Rückwand aufgeklettet zu werden, und/oder das in einem Bereich des Kopfendes, auf einer Innenseite der Rückwand angeordnet ist, um zum Verschluss des geotextilen Sandbehälters auf einer zugeordneten Gegenfläche an einer Innenseite der Vorderwand aufgeklettet zu werden, und
• - umfassend eine sich von der Rückwand über das Kopfende hinaus erstreckende Verschlussklappe, die um eine mit dem Kopfbereich zusammenfallende Umschlaglinie auf eine Außenseite der Vorderwand umschlagbar ist, wobei das Kletthakenband oder die mehreren Kletthakenbänder ein zweites Kletthakenband umfasst/umfassen, das auf einer Verschlussseite der Verschlussklappe an einem der Umschlaglinie gegenüberliegenden Endbereich angeordnet ist, um zum Verschluss des geotextilen Sandbehälters auf einer zugeordneten Gegenfläche an einer Außenseite der Vorderwand aufgeklettet zu werden, und/oder das beabstandet von dem Kopfende auf einer Außenseite der Vorderwand angeordnet ist, um zum Verschluss des geotextilen Sandbehälters auf einer zugeordneten Gegenfläche an einer Verschlussseite der Verschlussklappe an einem der Umschlaglinie gegenüberliegenden Endbereich aufgeklettet zu werden.

According to a particularly preferred embodiment, a geotextile sand container can be provided

• - wherein the hook and loop fastener tape or the several hook and loop fastener tapes comprise/comprise a first hook and loop fastener tape: which is arranged in a region of the head end, on an inner side of the front wall, in order to be hooked up to an associated mating surface on an inner side of the rear wall in order to close the geotextile sand container, and /or which is arranged in a region of the head end, on an inside of the rear wall, in order to be fastened to an assigned mating surface on an inside of the front wall in order to close the geotextile sand container, and
• - comprising a closure flap extending from the rear wall beyond the head end, which can be folded over onto an outer side of the front wall about a fold line coinciding with the head region, wherein the Velcro hook strip or several Velcro hook strips comprises/comprise a second Velcro hook strip which is on a closure side of the closure flap is arranged on an end region opposite the hemming line, in order to be fastened to an associated counter surface on an outer side of the front wall in order to close the geotextile sand container, and/or which is arranged at a distance from the head end on an outer side of the front wall in order to close the geotextile sand container on an associated mating surface on a closure side of the closure flap to be attached to an end area opposite the fold line.

• - wobei das Kletthakenband oder die mehreren Kletthakenbänder ein erstes Kletthakenband umfasst/umfassen: das in einem Bereich des Kopfendes, auf einer Innenseite der Vorderwand angeordnet ist, um zum Verschluss des geotextilen Sandbehälters auf einer zugeordneten Gegenfläche an einer Innenseite der Rückwand aufgeklettet zu werden, und/oder das in einem Bereich des Kopfendes, auf einer Innenseite der Rückwand angeordnet ist, um zum Verschluss des geotextilen Sandbehälters auf einer zugeordneten Gegenfläche an einer Innenseite der Vorderwand aufgeklettet zu werden, und
• - wobei die geotextile Hülle an dem Kopfende an den Seitenbereichen jeweils einen Eckumschlag umfasst, der jeweils eine nach innen gerichtet Tasche bildet, um die Befüllöffnung zu begrenzen, und
• - umfassend eine sich von der Rückwand über das Kopfende hinaus erstreckende Verschlussklappe, die um eine mit dem Kopfbereich zusammenfallende Umschlaglinie auf eine Außenseite der Vorderwand umschlagbar ist, wobei das Kletthakenband oder die mehreren Kletthakenbänder ein zweites Kletthakenband umfasst/umfassen, das auf einer Verschlussseite der Verschlussklappe an einem der Umschlaglinie gegenüberliegenden Endbereich angeordnet ist, um zum Verschluss des geotextilen Sandbehälters auf einer zugeordneten Gegenfläche an einer Außenseite der Vorderwand aufgeklettet zu werden, und/oder das beabstandet von dem Kopfende auf einer Außenseite der Vorderwand angeordnet ist, um zum Verschluss des geotextilen Sandbehälters auf einer zugeordneten Gegenfläche an einer Verschlussseite der Verschlussklappe an einem der Umschlaglinie gegenüberliegenden Endbereich aufgeklettet zu werden.

According to a further particularly preferred embodiment, a geotextile sand container can be provided

• - wherein the hook and loop fastener tape or the several hook and loop fastener tapes comprise/comprise a first hook and loop fastener tape: which is arranged in a region of the head end, on an inner side of the front wall, in order to be hooked up to an associated mating surface on an inner side of the rear wall in order to close the geotextile sand container, and /or which is arranged in a region of the head end, on an inside of the rear wall, in order to be fastened to an assigned mating surface on an inside of the front wall in order to close the geotextile sand container, and
• - wherein the geotextile envelope comprises at the head end at each of the side regions a corner fold forming an inward pocket to delimit the inflation opening, and
• - comprising a closure flap extending from the rear wall beyond the head end, which can be folded over onto an outer side of the front wall about a fold line coinciding with the head region, wherein the Velcro hook strip or several Velcro hook strips comprises/comprise a second Velcro hook strip which is on a closure side of the closure flap is arranged on an end region opposite the hemming line, in order to be fastened to an associated counter surface on an outer side of the front wall in order to close the geotextile sand container, and/or which is arranged at a distance from the head end on an outer side of the front wall in order to close the geotextile sand container to be velcroed onto an associated mating surface on a closure side of the closure flap at an end region opposite the fold line.

• - wobei die Vorderwand um eine mit dem Kopfbereich zusammenfallende Faltlinie in einen Innenraum der geotextilen Hülle umgeschlagen ist und einen Wandumschlag bildet, wobei das Kletthakenband oder die mehreren Kletthakenbänder ein erstes Kletthakenband umfasst/umfassen, das auf der Innenseite der Vorderwand an einem der Faltlinie gegenüberliegenden Endbereich des Wandumschlags angeordnet ist, um zum Verschluss des geotextilen Sandbehälters auf einer zugeordneten Gegenfläche an einer Innenseite der Rückwand aufgeklettet zu werden, und/oder das beabstandet von dem Kopfende auf einer Innenseite der Rückwand angeordnet ist, um zum Verschluss des geotextilen Sandbehälters auf einer zugeordneten Gegenfläche auf der Innenseite der Vorderwand an einem der Faltlinie gegenüberliegenden Endbereich des Wandumschlags aufgeklettet zu werden,
• - umfassend eine sich von der Rückwand über das Kopfende hinaus erstreckende Verschlussklappe, die um eine mit dem Kopfbereich zusammenfallende Umschlaglinie auf eine Außenseite der Vorderwand umschlagbar ist, wobei das Kletthakenband oder die mehreren Kletthakenbänder ein zweites Kletthakenband umfasst/umfassen, das auf einer Verschlussseite der Verschlussklappe an einem der Umschlaglinie gegenüberliegenden Endbereich angeordnet ist, um zum Verschluss des geotextilen Sandbehälters auf einer zugeordneten Gegenfläche an einer Außenseite der Vorderwand aufgeklettet zu werden, und/oder das beabstandet von dem Kopfende auf einer Außenseite der Vorderwand angeordnet ist, um zum Verschluss des geotextilen Sandbehälters auf einer zugeordneten Gegenfläche an einer Verschlussseite der Verschlussklappe an einem der Umschlaglinie gegenüberliegenden Endbereich aufgeklettet zu werden.

According to a further particularly preferred embodiment, a geotextile sand container can be provided

• - wherein the front wall is folded over into an inner space of the geotextile covering around a fold line coinciding with the head area and forms a wall fold, wherein the hook and loop fastener tape or several hook and loop fastener tapes comprise/comprise a first hook and loop fastener tape which is located on the inside of the front wall at an end region opposite the fold line of the wall flap is arranged to be hooked up to an associated mating surface on an inside of the rear wall for closing the geotextile sand container, and/or which is arranged spaced from the top end on an inside of the rear wall in order to close the geotextile sand container on an associated mating surface to be fastened to the inside of the front wall at an end area of the wall cover opposite the fold line,
• - comprising a closure flap extending from the rear wall beyond the head end, which can be folded over onto an outer side of the front wall about a fold line coinciding with the head region, wherein the Velcro hook strip or several Velcro hook strips comprises/comprise a second Velcro hook strip which is on a closure side of the closure flap is arranged on an end region opposite the hemming line, in order to be fastened to an associated counter surface on an outer side of the front wall in order to close the geotextile sand container, and/or which is arranged at a distance from the head end on an outer side of the front wall in order to close the geotextile sand container to be velcroed onto an associated mating surface on a closure side of the closure flap at an end region opposite the fold line.

The particularly preferred embodiments listed above each include two Velcro hook strips and can thereby ensure a particularly secure and reliable closure of the filled and closed geotextile sand containers. For further advantages, reference is also made to the previous description of the corresponding individual features.

The geotextile cover can have, for example, a front wall, a rear wall, a closed bottom area, closed side areas and a head area opposite the bottom area, which forms a head end of the geotextile cover, with the filling opening being formed in the front wall at a distance from the head area, and with the Quick release could be designed as a zipper.

More preferably, a first row of fastener elements may be arranged at an opening edge of an upper part of the front wall and a second row of fastener elements may be arranged at an opening edge of a lower part of the front wall.

The filling opening can preferably be formed in the front wall, spaced from the head area in such a way that the distance between the filling opening and the head area is in particular a maximum of 1/4, 1/5, 1/6, 1/7, 1/8, 1/9 or 1/10 of the total height of the geotextile sand tank. The height can preferably be a distance between the top area and the bottom area.

Due to the configuration of the filling opening in the front wall, at a distance from the head area, a filling material can slip in the direction of the head area after filling and sealing, in particular if the filling material slips, such as when filled and closed geotextile sand containers tip over in an upright position or when moving and positioning. As a result, forces that preferably occur on the closure can be redistributed and thus a particularly secure and reliable closure can be achieved. Furthermore, this configuration can preferably also prevent the filling material from trickling out at corner regions.

The quick-release fastener could be designed as a zipper, for example. With this preferred development, a quick-release fastener can be provided, which enables the geotextile sand container to be closed particularly easily and quickly. Furthermore, this configuration eliminates the need for specially trained personnel.

The zipper can preferably include or consist of a raw material that has at least similar aging behavior and/or at least similar durability and the like as a raw material of the geotextile sand container.

A zipper can preferably be designed to be sift-proof and robust. In particular, the zip fastener can comprise metal and/or plastic or be formed from these.

Especially preferred. the zipper can be sewn, welded or glued in the area of the filling opening during manufacture in the factory. As a result, a degree of prefabrication can be increased in particular.

More preferably, the geotextile sleeve can have a connecting element, preferably a double-sided Velcro hook strip, on an outside, in particular at a distance from the quick-release fastener, which is arranged for attachment to an external counter surface, in particular to a geotextile sand container. As a result, filled, closed and placed geotextile sand containers can preferably be kept together at the place of use. As a result, position security can be improved. A protective element can preferably be attached to the double-sided Velcro hook tape, which can only be removed before positioning.

In particular, it is preferred that the geotextile sand container comprises a filling material accommodated in the geotextile cover. In this case, the filling opening can preferably be closed in a siphon-proof manner with the quick-release fastener extending in the longitudinal direction of the filling opening, with the quick-release fastener being designed for tool-free closing. The filled and preferably closed geotextile sand container can be designed to secure sections of the coast.

According to a further aspect of the invention, the object mentioned at the outset is achieved by a method for producing a geotextile sand container for filling with a filling material, in particular for securing sections of coast, with the steps: providing a prefabricated geotextile cover which has a filling opening, and attaching a Quick-release fastener along a longitudinal direction of the filling opening, which is designed to close the filling opening without tools in a trickle-proof manner.

The method may include, for example, stitching, thermal welding, or stitching a geotextile sheet to the geotextile sleeve.

The attachment of the quick-release fastener can preferably include the step of attaching a double-sided Velcro hook tape, sewing the quick-release fastener, gluing the quick-release fastener or welding the quick-release fastener, in particular a zipper, onto the geotextile cover. Preferably, the quick-release fastener can be attached in the factory or at a place of use. It is particularly preferred if the quick-release fastener can be attached to the geotextile cover without tools.

According to a further aspect of the invention, the object mentioned at the beginning is achieved by a method for producing a geotextile sand container for securing sections of coast, comprising a geotextile sand container, with the steps: providing a geotextile sand container with a geotextile cover, which has a filling opening, and a comprises in the longitudinal direction of the filling opening extending quick-release fastener, which is designed to close the filling opening trickle-proof, filling the geotextile cover the filling opening with a filling material and tool-free closing of the quick-release fastener.

In particular, it is preferred that the quick-release fastener comprises a Velcro hook strip and is closed by the Velcro hook strip engaging in a fleece layer, the fleece layer being formed by a section of the shell of the sand container or by a fleece strip attached thereto, the sand container being filled in a vertical orientation , in which the quick-release fastener is arranged at the upper end of the sand container, the filled sand container is then tilted into a horizontal orientation and the fleece layer has an extensibility that is different, in particular greater than the extensibility of the Velcro hook tape, so that the sand filling in the area of the quick-release fastener when Tilting the sand container from the vertical to the horizontal orientation in the area of the quick-release fastener and generates an elongation of the loop tape that is different, in particular greater than the elongation of the Velcro hook tape, and the hooks of the Velcro hook tape dig it into the fleece layer due to the different stretching caused.

The geotextile sand container can preferably be filled while standing. In this case, a base area of a geotextile sand container can be arranged on a subsurface. Filling can preferably take place from above through a filling opening arranged in a head area or at a distance from the head area of the geotextile sand container. After filling, the quick-release fastener can be closed without tools.

Particularly preferably, the quick-release fastener can be closed as long as the filled geotextile sand container is standing. The filled and closed geotextile sand container can then be tipped over. Preferably, the filled and closed geotextile sand container can then be taken to a place of use and placed.

For further advantages, design variants and design details of the further aspects and their possible developments, reference is also made to the previously given description of the corresponding features and developments.

• 1 eine schematische Darstellung einer ersten Ausführungsform eines geotextilen Sandbehälters,
• 2 eine schematische Darstellung einer Schnittansicht des geotextilen Sandbehälters in einem geschlossenen Zustand gemäß der ersten Ausführungsform,
• 3 eine schematische Darstellung eines Ausschnitts einer zweiten Ausführungsform eines geotextilen Sandbehälters,
• 4 eine schematische Darstellung eines Eckumschlags des geotextilen Sandbehälters gemäß der zweiten Ausführungsform,
• 5 eine schematische Darstellung einer dritten Ausführungsform eines geotextilen Sandbehälters,
• 6 eine schematische Darstellung einer Schnittansicht des geotextilen Sandbehälters in einem geschlossenen Zustand gemäß der dritten Ausführungsform,
• 7 eine schematische Darstellung eines doppelseitigen Kletthakenbandes und eines einseitigen Kletthakenbandes,
• 8 eine schematische Darstellung einer vierten Ausführungsform eines geotextilen Sandbehälters und
• 9 eine schematische Darstellung des geotextilen Sandbehälters in einem geschlossenen Zustand gemäß der vierten Ausführungsform.

Preferred exemplary embodiments are explained by way of example with reference to the accompanying figures. Show it:

• 1 a schematic representation of a first embodiment of a geotextile sand container,
• 2 a schematic representation of a sectional view of the geotextile sand container in a closed state according to the first embodiment,
• 3 a schematic representation of a section of a second embodiment of a geotextile sand container,
• 4 a schematic representation of a corner fold of the geotextile sand container according to the second embodiment,
• 5 a schematic representation of a third embodiment of a geotextile sand container,
• 6 a schematic representation of a sectional view of the geotextile sand container in a closed state according to the third embodiment,
• 7 a schematic representation of a double-sided Velcro hook tape and a single-sided Velcro hook tape,
• 8th a schematic representation of a fourth embodiment of a geotextile sand container and
• 9 a schematic representation of the geotextile sand container in a closed state according to the fourth embodiment.

In the figures, identical or essentially functionally identical or similar elements are denoted by the same reference symbols.

the 1-3 , 5 and 6 show exemplary embodiments of a sand container 1 according to the invention with a geotextile cover 2, each having a filling opening 3 and a Velcro fastener as a quick-release fastener 5. The geotextile cover 2 has a front wall 10, a rear wall 11, a closed bottom area 12, closed side areas 15a, 15b and a head area 13. The head area 13 is arranged opposite the bottom area 12 and forms a head end 14 of the geotextile cover 2. According to the exemplary embodiments shown here, the closed side areas 15a, 15b are arranged opposite one another.

The head area 13 is designed to be open and has the filling opening 3 . In the embodiment variants shown here, the filling opening 3 extends to the side areas 15a, 15b and thus over the entire head area 13. Such a design of the filling opening 3 is particularly advantageous in that it enables the geotextile sand container 1 to be filled particularly easily.

The in the 1-3 , 5 , 6 and 8th , 9 The geotextile covers 2 shown are formed, for example, from a geotextile web that is folded up accordingly and sewn on the side areas 15a, 15b, so that the sewn geotextile web has at least the closed bottom area 12 and the closed side areas 15a, 15b and a filling opening 5.

1 shows the geotextile sand container 1 according to a first embodiment in an open state. The geotextile sand container 1 has a closure flap 20 which extends from the rear wall 11 beyond the head end 14 . The closure flap 20 is designed to be folded over a flap line 21 onto an outer side 10b of the front wall 10 for closure.

The hook and loop fastener comprises a first hook and loop hook band 26a and a second hook and loop hook band 26b. The first Velcro hook strip 26a is arranged on an inner side 10a on the front wall 10 in the area of the head end 14 . The Velcro hook strip 26a is at a distance from the head area 13 and thus from the filling opening 3 and extends along the longitudinal direction 4 of the filling opening 3 over the entire width of the casing 2. This design provides a particularly spill-proof closure, especially in the corner areas. The first Velcro hook strip 26a is designed to be attached to an associated mating surface on an inner side 11a of the rear wall 11 .

The hook and loop fastener includes a second hook and loop fastener band 26b which is arranged on a closure side 20a of the closure flap 20 . According to the embodiment variant shown here, the second Velcro hook strip 26b is arranged on an end region opposite the fold line 21 .

To close the geotextile sand container 1, after filling, the first Velcro hook strip 26a can first be attached to the corresponding mating surface. Following this, the closure flap 20 can be folded over the fold line 21 onto the outside 10b of the front wall 10 and attached with Velcro. A geotextile sand container 1 sealed in this way is in 2 shown.

In 3 a section of the geotextile sand container 1 according to a further embodiment with an additional trickle-out protection in the area of the corners in the form of a corner flap 37 is shown. The geotextile sand container 1 comprises a first Velcro hook strip 36a, which is arranged on the inside 11a of the rear wall in the area of the head end 14. In addition, the geotextile sand container 1 according to 3 also a closure flap 30 extending from the rear wall beyond the head end 14 and having a second hook and loop fastener tape 36b on the closure side 30a. The second Velcro hook strip 36b is here arranged on the end region opposite the fold line. In addition, the geotextile cover 2 has an inwardly directed pocket in each of the side regions 15a, 15b, each of which is formed by a corner fold 37.

To close the geotextile sand container 1, after filling, the first Velcro hook strip 36a can first be attached to the corresponding mating surface. Here, the first Velcro hook strip 36a is attached both to the corresponding counter-surface of the inside 10a of the front wall 10 and to the corner flaps 37. Following this, the closure flap 30 can be folded over the folding line 31 onto the outside 10b of the front wall 10 and attached with Velcro.

4 shows an exemplary corner fold 37 in the form of a nonwoven cutout 38. The nonwoven cutout 38 shown as an example has the shape of an isosceles triangle that can be folded together about an axis of symmetry 34. A section of non-woven material 38 folded together in this way can, for example, be attached to the side areas 15a, 15b, so that an open side 35 faces an inner volume of the geotextile cover 2. A fold line of the nonwoven cutout 38 that coincides with the axis of symmetry 34 can face the filling opening 3 . in the in 3 In the exemplary section of a geotextile sand container 1 shown with a corner flap 37, the nonwoven section 38 is sewn to the side regions 15a, 15b.

5 shows the geotextile sand container 1 according to a further embodiment in an open state. The geotextile sand container 1 has a closure flap 40 which extends from the rear wall 11 beyond the head end 14 . The closure flap 40 is designed here to be folded over a flap line 41 onto the outside 10b of the front wall 10 in order to close the geotextile sand container.

The front wall 10 is folded about a fold line 44 into an interior space of the geotextile cover 2 . This forms a panel fold 9 in the form of an inward pocket extending across the full width of the front panel.

The hook and loop fastener includes a first hook and loop fastener tape 46a and a second hook and loop fastener tape 46b. The first Velcro hook strip 46a is here arranged on the wall cover 9 on the inside 10a of the front wall 10. The first Velcro hook strip 46a is spaced apart from the head area 13 and is arranged on an end area of the front wall 10 opposite the fold line 44 . The first Velcro hook strip 46a extends over the entire width of the front wall 10 and is designed to be attached to an associated mating surface on the inside 11a of the rear wall 11. Due to the configuration of the wall envelope 9, a filling material, in particular sand, can slip into the pocket. As a result, forces occurring on the closure can be reduced by redistribution.

The hook and loop fastener includes a second hook and loop hook band 46b which is arranged on a closure side 40a of the closure flap 40 . According to the embodiment variant shown here, the second Velcro hook strip 46b is arranged on an end region opposite the fold line 41 .

To close the geotextile sand container 1, after filling, the first Velcro hook strip 46a can first be attached to the corresponding mating surface. Following this, the closure flap 40 can be folded over the fold line 41 onto the outside 10b of the front wall 10 and attached with Velcro. A geotextile sand container 1 sealed in this way is in 6 shown.

The in the 1-3 , 5 and 6 First Velcro hook tapes 26a, 36a, 46a and second Velcro hook tapes 26b, 36b, 46b shown can each be designed as a mushroom head tape or a hook tape in order to be attached to a fleece layer. The fleece layer can be formed by a material of the geotextile cover 2 itself. Here it can be provided that the geotextile cover 2 consists of a non-woven material or comprises a non-woven material. With this configuration, the entire geotextile cover 2 can serve as a fleece layer and thus a secure closure of the filling opening can be ensured, since incorrect closure of the Velcro fastener can be prevented.

The advantage of such a geotextile sand container 1 with a first Velcro hook strip 26a, 36a, 46a and a second Velcro hook strip 26b, 36b, 46a is that the forces that occur do not only occur on a single closure element. Two Velcro hook strips can thus be used as an additional safeguard in terms of reliability.

7 shows an example of a single-sided Velcro hook tape 8 and a double-sided Velcro hook tape 7. As above to the 1-3 , 5 and 6 Velcro hook strips for closing the geotextile sand container 1 are preferably provided. The Velcro hook tapes can be attached to the geotextile cover or designed to be attached to it. Here, the Velcro hook tapes can each be designed as single-sided Velcro hook tapes 8 or double-sided Velcro hook tapes 7. Configurations are also conceivable in which at least one Velcro hook strip is provided as a single-sided Velcro hook strip 8 and at least one Velcro hook strip is provided as a double-sided Velcro hook strip 7 .

The one-sided Velcro hook tape 8 can be used as in 7 shown to be sewn to the geotextile envelope. The design according to 7 1 shows a one-sided hook and loop fastener tape 8 with a total of three seams 50. This ensures that the one-sided hook and loop fastener tape 8 is particularly securely fastened to the textile cover and thus ensures a secure closure. As an alternative or in addition to sewing the one-sided Velcro hook strip 8 to the geotextile cover, it can also be glued to the geotextile cover, for example.

This in 7 The double-sided hook and loop fastener tape 7 shown above the single-sided hook and loop fastener tape 8 has a bottom surface 7a and a top surface 7b. The bottom surface 7a and the top surface 7b can have hooks and/or mushroom heads, for example. Due to the double-sided design, the Velcro hook strip 7 can be attached to the geotextile cover 2 without tools and thus particularly easily. The Velcro can be done in the factory or alternatively on the construction site.

Basically, it should be understood that the Velcro hook tapes 26a, 26b, 36a, 36b, 46a, 46b of the embodiment variants - as in the 1-3 , 5 and 6 shown - can each be designed as a double-sided Velcro hook tape or a single-sided Velcro hook tape.

In the 8th and 9 a further exemplary embodiment of a geotextile sand container 1 is shown. Here, the quick-release fastener 5 is designed as a zipper 60 that extends along the longitudinal direction 4 of the filling opening 3 . The in the 8th and 8th The geotextile sand container 1 shown has a geotextile shell 2 with a front wall 10, a rear wall, a closed bottom area 12, closed side areas 15a, 15b and a head area 13. The head area 13 is arranged opposite the bottom area 12 and forms a head end of the geotextile cover 2. The filling opening 3 is formed spaced apart from the head portion 13 according to this embodiment. The slide fastener 60 includes a first row of fastener elements 61 and a second row of fastener elements 62 . Similarly, the second row of coupling elements 62 is arranged at an opening edge 64 of a lower part of the front panel 10 .

The embodiment variants shown in the figures allow the geotextile sand container 1 to be closed without the use of tools. As a result, manageability can be improved. Since no tools have to be purchased or borrowed, both time and money can be saved.

The closing of the geotextile sand container 1 can in principle be carried out without tools at the place of use. Thus, in all embodiments, the closure elements of the quick-release fastener can either already be arranged on the geotextile cover in the factory in order to be able to increase the degree of prefabrication. Alternatively, the locking elements of the quick-release fastener can be attached to the geotextile cover on site without tools. Improved handling can be achieved by closing the geotextile sand container 1 without tools after it has been filled. In addition, there is no need for trained personnel. The embodiments according to the invention are designed in such a way that a risk of incorrect sealing of the geotextile sand container can be reduced.

reference list

1

geotextile sand tank

2

geotextile cover

3

filling opening

4

Longitudinal direction of the filling opening

5

quick release

6

Velcro hook tape

7

double-sided hook and loop tape

7a

bottom surface

7b

top surface

8th

one-sided hook and loop tape

9

wall envelope

10

front wall

10a

inside of the front wall

10b

outside of the front wall

11

back panel

11a

inside of the back wall

12

floor area

13

header area

14

headboard

15a, 15b

side panels

20, 30, 40

closure flap

20a, 30a, 40a

closure side of the closure cap

21,31,41

envelope line

23, 43

envelope line

26a, 36a, 46a

first velcro strap

26b, 36b, 46b

second velcro strap

34

axis of symmetry

35

open side

37

corner cover

38

non-woven cutout

44

fold line

50

seam

60

zipper

61

first row of coupling links

62

second row of fasteners

Claims (14)

Geotextile sand container (1) for filling with a filling material, in particular for protection against erosion in coastal waters or inland waters, comprising a geotextile cover (2). - a filling opening (3) and - a quick-release fastener (5) extending in the longitudinal direction (4) of the filling opening (5), which is designed to close the filling opening (3) in a trickle-proof manner without tools, wherein the quick-release fastener (5) is designed as a Velcro fastener and comprises a Velcro hook strip (6; 7; 8) or several Velcro hook strips (6; 7; 8), which are each designed to be brought into engagement with a fleece layer, wherein the geotextile cover (2) comprises a non-woven fabric which is designed to form the looped layer for attaching the one hook and loop fastener tape (6; 7; 8) or the multiple hook and loop fastener tapes (6; 7; 8). Geotextile sand container (1) according to the above claim 1 , wherein the Velcro hook strip (7) or the several Velcro hook strips (7) is/are designed as a double-sided Velcro hook strip or double-sided Velcro hook strips, in which a large number of Velcro hooks are arranged on an upper side surface (7b) of the Velcro hook strip and on a lower side surface (7a ) of the Velcro hook tape, a plurality of Velcro hooks is arranged, in particular as a double-sided hook tape or a double-sided mushroom head tape. Geotextile sand tank after claim 2 , wherein - the underside surface (7a) of the double-sided hook and loop fastener tape (7) or the several double-sided hook and loop fastener tapes (7) is hooked onto the non-woven fabric of the geotextile cover (2) and - the upper-side surface (7b) of the double-sided hook and loop fastener tape (7) or the several double-sided Velcro hook strips (7) has a protective element which is releasably attached to the upper surface (7b) with Velcro. Geotextile sand container (1) according to any one of the preceding Claims 1 until 3 , characterized in that the fleece layer has an extensibility which is different, in particular greater than the extensibility of the Velcro hook tape. Geotextile sand container (1) according to any one of the preceding Claims 1 until 4 , wherein the geotextile cover (2) in the area of the quick-release fastener (5) comprises a non-woven fabric layer, which forms the fleece layer of the Velcro fastener and which has greater extensibility than the Velcro hook strip (6) under a corresponding load. Geotextile sand container (1) according to any one of the preceding claims, wherein the geotextile cover (2) comprises: - a front wall (10), - a rear wall (11), - a closed floor area (12), - closed side areas (15a; 15b) and - A head area (13) opposite the bottom area (12) and forming a head end (14) of the geotextile covering (2), the filling opening (3) being formed in the head area (13). Geotextile sand container (1) according to the above claims 6 , wherein the hook and loop fastener tape (6; 7; 8) or the plurality of hook and loop fastener tapes (6; 7; 8) comprises/encompass a first hook and loop fastener tape (36) - which is in a region of the head end (14), on an inner side (10a) of the front wall (10) is arranged in order to be attached to an associated counter surface on an inner side (11a) of the rear wall (11) in order to close the geotextile sand container, and/or - in a region of the head end (14), on an inner side ( 11a) of the rear wall (11) in order to be fastened to an associated mating surface on an inner side (10a) of the front wall (10) in order to close the geotextile sand container. Geotextile sand container (1) according to any one of the preceding Claims 6 or 7 , wherein the geotextile cover (2) on the side areas in the area of the head end (14) each comprises a corner fold (37), each forming an inward pocket to limit the filling opening (3). Geotextile sand container (1) according to claim 6 , wherein the front wall (10) is folded around a fold line (44) coinciding with the head area (13) into an interior space of the geotextile cover (2) and forms a wall fold (9), the Velcro hook tape (6; 7; 8) or the several hook and loop fastener tapes (6; 7; 8) comprise/comprise a first hook and loop fastener tape (46a), - which is arranged on the inside (10a) of the front wall (10) on an end region of the wall flap (9) opposite the fold line (44), to be attached to an assigned mating surface on an inside (11a) of the rear wall (11) to close the geotextile sand container, and/or - which is arranged on an inside (11a) of the rear wall (11) at a distance from the head end (14). in order to close the geotextile sand container on an assigned mating surface on the inside (10a) of the front wall (10) on an opposite end area of the wall flap (9) of the fold line (44). Geotextile sand container (1) according to any one of the preceding Claims 6 until 9 , comprising a closure flap (20; 30; 40) extending from the rear wall (11) beyond the head end (14) and being folded about a fold line (23; 43) coinciding with the head region (13) on an outer side (10b) of the front wall (10) can be folded over, wherein the hook and loop fastener tape (6; 7; 8) or the several hook and loop fastener tapes (6; 7; 8) comprises/comprise a second hook and loop fastener tape (26b, 36b, 46b), - which is on a closure side (20a; 30a; 40a) of the closure flap (20; 30; 40) on an end region opposite the fold line (23; 43), in order to close the geotextile sand container by hook and loop fasteners on an assigned counter surface on an outer side (10b) of the front wall (10). are, and / or - which is spaced from the head end on an outer side (10b) of the front wall (10) is arranged in order to close the geotextile sand container on an associated counter surface on a Closure side (20a; 30a; 40a) of the closure flap (20; 30; 40) to be attached to an end region opposite the flap line (21; 31; 41). A geotextile sand container (1) as claimed in any one of the preceding claims comprising a fill material contained within the geotextile envelope (2). Method for producing a geotextile sand container (1) for filling with a filling material, in particular for securing sections of coast, with the steps: - Providing a prefabricated geotextile cover (2) which has a filling opening (3), and - Attaching a quick-release fastener (5) along a longitudinal direction (4) of the filling opening (4), which is designed to close the filling opening (3) so that it cannot trickle without tools, the quick-release fastener (5) being designed as a Velcro fastener and a Velcro hook strip (6 ; 7; 8) or multiple hook and loop fastener tapes (6; 7; 8) each adapted to be engaged by a fleece layer, wherein the geotextile sheath (2) comprises a non-woven fabric adapted to surround the fleece layer for attaching the one hook and loop fastener tape (6; 7; 8) or several hook and loop fastener tapes (6; 7; 8). Method for producing a geotextile sand container for securing sections of coast, comprising a geotextile sand container, with the steps: - Providing a geotextile sand container (1) with a geotextile cover (2) which has a filling opening (3) and a quick-release fastener (5) which extends in the longitudinal direction (4) of the filling opening (5) and is designed to Filling opening (3) to be closed so that it cannot trickle, - Filling the geotextile cover (2) through the filling opening (3) with a filling material and - Closing the quick-release fastener (5) without tools, the quick-release fastener (5) being designed as a Velcro fastener and comprising a Velcro hook strip (6; 7; 8) or several Velcro hook strips (6; 7; 8), which are each designed to be connected to a fleece layer to be engaged, wherein the geotextile sleeve (2) comprises a non-woven fabric which is adapted to form the fleece layer for hooking up the one or more hook and loop fastener tapes (6; 7; 8). . procedure after claim 12 or 13 characterized in that - the quick-release fastener comprises a Velcro hook strip and is closed by the Velcro hook strip engaging in a fleece layer, the fleece layer being formed by a section of the shell of the sand container, - the sand container is filled in a vertical orientation, in which the quick-release fastener on is arranged at the upper end of the sand container, - the filled sand container is then tilted in a horizontal orientation and - the fleece layer has an extensibility that is different, in particular greater than the extensibility of the Velcro hook tape, so that the sand filling in the area of the quick-release fastener when the sand container is tilted the vertical into the horizontal alignment in the area of the quick-release fastener and generates an elongation of the loop tape that is different, in particular greater than the elongation of the Velcro hook tape, and - the hooks of the Velcro hook tape caused by the different Dig the stretch into the fleece layer.

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