DE102024100569A1 - Reinforcement element, reinforcement system, yarn holding device, device for producing a reinforcement element and method therefor and component - Google Patents

Abstract

The invention relates to a reinforcement element (1) and a reinforcement system, at least comprising at least one reinforcement element (1) according to the invention and at least one wound anchor (3) at at least one end of the at least one reinforcement element (1). Furthermore, the invention relates to a yarn holding device (10) for a device for producing a reinforcement element (1) according to the invention, and to this device and a method therefor. Finally, the invention also relates to a component with reinforcement.

Description

The invention relates to a reinforcement element and a reinforcement system.

Furthermore, the invention relates to a yarn holding device for a device for producing a reinforcing element and to this device and a method therefor.

Finally, the invention also relates to a component with reinforcement.

Elongated metal reinforcement elements, such as rod-shaped reinforcement elements, are well known in the art. These can be either slack bars or prestressed bars, so-called prestressing strands. With slack bars, the material is pressed into shape during production and the surface is profiled, for example by rolling. The bar is then cut to the desired length. With prestressing strands, individual bars are twisted together so that the surface is profiled by the shape of the wound bars or the spaces between them. Anchors can be attached to the ends, by means of which the prestressing strands can be prestressed for encasing in concrete. The profiled surface of the reinforcement elements serves to secure the bond and ensure sufficient force transmission in the concrete.

Furthermore, reinforcement elements made of carbon fibers or rovings are known from the state of the art, also in elongated form.

From the printed publication WO 2007 / 074840 A1 A rod-shaped reinforcement element made of carbon fibers with loops at the ends is known, with bolts provided for anchoring in concrete components, around which the loops are placed. This also allows the reinforcement element to be prestressed. In addition, spiral wrappings for the ends of the reinforcement element are shown. The reinforcement element itself comprises an elongated core, around which a plurality of carbon fibers cut to the appropriate length are arranged in parallel. Furthermore, a fiber strand is spirally wound around the core with the parallel carbon fibers to create a type of frame. The entire construction is impregnated with an epoxy resin so that the frame can be removed after the epoxy resin has hardened. The surface of the finished reinforcement element only has longitudinal grooves between the parallel carbon fibers. Anchoring in the concrete is achieved by the loops in conjunction with the bolts.

From the printed publication JP 05010005 A A known elongated reinforcement element consisting of two fiber strands is arranged and secured between two concrete components. To create prestress in the reinforcement element, the element is twisted from the center. To do this, a type of pin is positioned centrally between the fiber strands and rotated around its own axis. As soon as the pin is released, it rotates back and the fiber strands are untwisted. For this reason, the pin is embedded in the concrete.

It is an object of the invention to provide an improved reinforcement element as well as an improved method for producing it and a device for producing it.

This object is achieved by the features of the independent patent claims. Advantageous developments of the invention are the subject of subordinate claims.

The inventor recognized that a reinforcement element can be easily manufactured by interlacing several layers of roving, preferably made of carbon fibers. This allows both an elongated, stable strand and its surface profiling to be created in a single step.

The interlacing of the individual rovings or their layers can be achieved, for example, by rotating two opposing brackets around which the rovings are looped. This allows the finished reinforcement element to have loops at its ends, which ensure even better anchoring of the ends in the concrete in the finished component.

Accordingly, the inventor proposes a reinforcement element comprising at least one strand of at least one roving, wherein the at least one roving is intertwined along the longitudinal axis of the reinforcement element, so that the reinforcement element has a profiled surface.

It should be noted that, in the context of this patent application, the term "intertwined" is to be understood as any twisting, braiding, winding, snaking, coiling, knotting, or the like of one or more rovings or their layers. The decisive factor is that the effect creates a profiled surface, with the profile advantageously not being parallel to the longitudinal direction of the reinforcement element.

Surface profiling preferably achieves a better bond between the reinforcement element and the concrete than reinforcement elements without surface profiling. Advantageously, no additional work step is required to create the surface profiling.

The shape of the reinforcement element according to the invention is preferably elongated, in particular rod-shaped with two ends. Alternatively, reinforcement elements with a closed shape, for example, circular or polygonal, are also possible.

The roving is preferably made of carbon fibers. Carbon is particularly well-suited for use in concrete construction. However, fibers made of other, preferably non-metallic and/or non-corrosive, materials, such as aramid, glass, basalt, or flax, are also possible.

One embodiment provides for at least one end of the reinforcement element to have a widened portion. This widened portion is preferably designed as a closed loop, so that there is no free end. Optionally, the loop can be provided with a thimble for stabilization. It is particularly advantageous for both ends of the reinforcement element, especially in the case of a rod-shaped reinforcement element, to have a widened portion, so that the reinforcement element is anchored as optimally as possible in the concrete against tensile loads in both directions.

In the case of a self-contained, for example circular, reinforcement element, it is possible to form the widening at any desired location.

As an alternative to a loop-shaped widening, it is also possible, for example, to spread out the end or to knot the end of the reinforcement element.

Furthermore, the inventors propose a reinforcement system, at least comprising at least one reinforcement element according to the invention as described above and at least one coil anchor at at least one end of the at least one reinforcement element.

In the context of the invention, a wrap anchor is understood to mean a strapping or wrapping of a specific area of the reinforcement element, wherein the wrap anchor is preferably designed separately, i.e. not in one piece, with the reinforcement element.

In a similarly possible embodiment of a self-contained reinforcement element, the coil anchor can also be formed at any location. If a self-contained reinforcement element has a widened portion, the coil anchor is advantageously arranged in the area of the widened portion, particularly around the widened portion.

The following description assumes a bar-shaped reinforcement element, unless a self-contained reinforcement element is expressly referred to.

The wound anchor is preferably made of carbon fiber. However, other fibers are also possible, such as aramid, glass, basalt, or flax.

Advantageously, it is not necessary to create direct contact or a direct connection between the reinforcement element and the coil anchor during manufacture of the reinforcement system. Accordingly, one embodiment provides that the at least one coil anchor is designed without direct contact with the reinforcement element. In other words, the reinforcement element and the coil anchor can be arranged at a distance from one another when cast in concrete. Direct contact is not necessary, but is not excluded by this invention. When the reinforcement system is cast in concrete, additional force is advantageously transmitted from the reinforcement element to the coil anchor via the surrounding concrete.

One embodiment provides for the at least one coil anchor to have a uniform diameter. For example, the coil anchor is tubular or cylindrical in shape. The longitudinal axis of the coil anchor is advantageously aligned approximately parallel to the longitudinal axis of the reinforcement element.

Another embodiment provides that the at least one coil anchor has a tapered diameter. For example, the coil anchor is conical or wedge-shaped. The longitudinal axis of the coil anchor is advantageously aligned approximately parallel to the longitudinal axis of the reinforcement element. In one variant, a coil anchor with a tapered cross-section can be arranged in the region of a widening around a reinforcement element, wherein the thinner end of the coil anchor can point either in the same direction as the thinner end of the widening or vice versa. If the thinner end of the coil anchor is positioned at the thicker end of the widening, i.e., essentially points outwards, then the anchoring of the coil anchor and thus of the reinforcement element in the concrete is stronger.

Advantageously, the at least one coiled anchor is constructed from at least one intersecting roving. In other words, the roving in the coiled anchor is not simply wound spirally around the reinforcement element, so that the individual strands of the roving lie parallel to one another, but rather intersects, thus creating a better hold for the coiled anchor. This advantageously allows for better anchoring and stability in the concrete.

In a simple embodiment, the at least one coil anchor is tubular or cylindrical with open ends. In a special embodiment, the at least one coil anchor is tubular or cylindrical with at least one closed end. For ease of production, it is advantageous to design the end of the coil anchor closed, which is arranged on the outside, i.e., on the outside of the widened portion of the reinforcement element. However, another arrangement is also possible in principle.

The invention also relates to a yarn holding device for a device for producing a reinforcement element according to the invention as described above, at least comprising a rotatably mounted roller and a bearing shaft therefor. The yarn holding device serves to hold the at least one roving or its layers from which the reinforcement element is produced. It is easily possible to guide a roving in at least one layer, i.e. at least once, around the roller, thereby forming a loop. The roller is rotatably mounted on the bearing shaft. Optionally, the roller can also be rotatable about its own axis.

Another optional design provides for the roller not only to be rotatably mounted on the bearing shaft, but also for the entire bearing shaft to be movable in additional dimensions. This allows for additional movement of the roller in longitudinal, transverse, diagonal, or lateral directions. For example, with more than two rollers that are movable in multiple dimensions, the layers can not only be wrapped around each other but also interwoven.

A preferred embodiment provides that the axis of rotation of the bearing shaft, around which the roller rotates, is different from the axis of rotation of the roller. Preferably, the axis of rotation is perpendicular to the axis of rotation. To intertwine the rovings or layers, the roller is preferably rotated around the bearing axis.

Advantageously, the roll has a fixing unit for the at least one roving. The fixing unit is designed, for example, as a slot into which the roving, in particular a beginning or end of the roving, can be clamped. This fixing/clamping technique is known, for example, from conventional yarn rolls. Alternatively or additionally, the roving can also be fixed by gluing. Further embodiments of the fixing unit are also within the scope of the invention.

In one embodiment of the yarn holding device, the roller has a conical shape. For example, the roller can be designed as a type of double cone with mutually directed tips, so that the roller is narrower in the middle than on the outside. In other words, this shape resembles an hourglass. This conical shape can advantageously prevent the layers from slipping off the roller when it rotates. Furthermore, it is possible for the loop of the reinforcement element arranged around the yarn holding device to be not wide and flat, but rather a compact cross-section to be created in the loop area thanks to the conical shape.

In another embodiment of the yarn holding device, the roller has a surface profile for better grip of the individual layers of the roving. In a simple variant, the surface profile is designed as circumferentially extending transverse grooves in which the individual layers are arranged. This advantageously prevents all layers from sliding into the center of the roller and being pressed against one another when the roller rotates, i.e. when tension is exerted on the layers, and/or due to the conical shape of the roller. Advantageously, it can be avoided that the layers are not pressed flat in the area of the loop arranged around the roller.

The invention also relates to a device for producing a reinforcing element according to the invention as described above, at least comprising at least one yarn holding device according to the invention as described above, wherein at least one roving is guided around the roll in at least one layer, so that when the roll rotates, the at least one roving is entwined around one another and the strand produced has a profiled surface.

One embodiment provides for two yarn holding devices to be formed, the rollers of which rotate in opposite directions relative to each other. In this case, either only one of the rollers rotate, or both rollers rotate simultaneously in opposite directions. The rotation speed of the rollers can be arbitrarily configured. For example, the rollers rotate at the same speed. Alternatively, the rollers rotate at different speeds. Furthermore, the rotation speed can be varied as desired.

In a simple embodiment, the device has only one yarn holding device, so that the rovings can be looped around the roll of one yarn holding device on the one hand and around another, stationary, immovable holder on the other hand.

Advantageously, the device comprises two yarn holding devices, each with a roller, wherein the rollers are preferably positioned opposite one another and spaced apart from one another. The spacing between the rollers essentially defines the length of the reinforcement element. The rollers are preferably mounted so as to be rotatable relative to one another. In this embodiment, for example, a roving can be guided at least once or multiple times around each roller, so that single- or multi-layer loops are present around the rollers. Between the rollers, the roving can be guided in parallel strands or in intersecting strands.

By rotating the rollers against each other, the strands of the roving are looped, wound, or twisted around each other. The finished reinforcement element thus exhibits a surface profile whose orientation deviates primarily from the longitudinal direction of the reinforcement element, but is also not merely oriented transversely to the longitudinal direction, as would be the case with simple transverse grooves.

Alternatively, the device has three or more yarn holding devices, each with a roller. By appropriately moving the rollers, for example, a combined rotational and lateral movement, the rovings can not only be twisted around each other, but also, for example, interwoven or knotted. This type of connection of the rovings provides additional stability to the reinforcement element as well as a more pronounced surface profile for even better anchoring and bonding.

Of course, it is also within the scope of the invention to implement a device with only one yarn holding device with a roller. The free ends of the roving can then be attached, for example, to a separate holder.

It is also possible to impregnate the rovings with a material before or during winding around the rolls, or at least before releasing them from the rolls, to ensure that the finished strand remains dimensionally stable and does not untwist, as well as to ensure improved cohesion of the rovings in the reinforcement element. Accordingly, in one embodiment, the at least one roving has an impregnation.

• - Führen mindestens eines Rovings in mindestens einer Lage in einer Schlaufe um die Rolle der mindestens einen Garnhalteeinrichtung,
• - Drehen der Rolle der mindestens einen Garnhalteeinrichtung, sodass die Lagen des mindestens einen Rovings umeinander verschlungen werden, und
• - Lösen der Schlaufe von der Rolle der mindestens einen Garnhalteeinrichtung.

Finally, the invention also relates to a method for producing a reinforcing element according to the invention as described above by means of a device according to the invention as described above, comprising at least the following method steps:

• - guiding at least one roving in at least one layer in a loop around the roll of the at least one yarn holding device,
• - rotating the roll of the at least one yarn holding device so that the layers of the at least one roving are entwined around each other, and
• - Detaching the loop from the reel of at least one yarn holding device.

Advantageously, at least one roving is first wound around the rolls in one or more layers. Between the rolls, the roving layers are either parallel to each other or intersect. By rotating the rolls in opposite directions, the layers are looped around each other, creating an intertwined strand. The finished reinforcement element, i.e., the intertwined strand, has a surface profile, possibly with flared ends. The loops can be removed, for example, either by pulling them off the rolls or by cutting them open.

Additionally, it is possible to impregnate the roving during production to ensure better internal cohesion. Accordingly, an optional but advantageous method step provides for the at least one roving to be impregnated before or after being guided around the rollers, or only after the loops have been released from the rollers. Impregnation advantageously prevents the produced strand from untwisting after being released from the rollers and ensures that the strand remains dimensionally stable. In principle, this dimensional stability of the finished strand or the reinforcement element can also be achieved differently, i.e. without impregnation, so that alternative variants to this are also within the scope of the invention.

In a preferred embodiment, the reinforcement element is manufactured as a bar with at least one flare at each end. One end may either have no flare, for example, because it has been cut off, or one end may have one or more flares.

In another embodiment, the reinforcement element can advantageously be formed into a curved or angular shape before the curing of an optional impregnation. In particular, self-contained shapes are also possible. The ends of the reinforcement element can be connected to each other, for example, by knotting or splicing. In this embodiment, it is possible to position one or more widened sections at any location.

In an advantageous further method step, a coil anchor is subsequently positioned at at least one end of the reinforcement element in order to create a reinforcement system according to the invention as described above. The coil anchor is preferably positioned in the area of an expansion. Particularly advantageously, the coil anchor has no direct contact with the reinforcement element, in particular with the expansion. This means that these components do not touch each other. Only when cast in concrete does indirect contact occur via the surrounding concrete, which in turn also enables the force transmission from the reinforcement element to the coil anchor.

For further use, the reinforcement element can be inserted into a concrete component in a slack state, i.e. without prestressing, or prestressing can be applied to the reinforcement element so that it can be inserted into a concrete component in a prestressed state.

Accordingly, one embodiment of the manufacturing method provides that the reinforcement element is prestressed for encasing in concrete.

The invention also relates to a reinforcement element produced by a method according to the invention as described above.

Finally, the invention also relates to a concrete component, at least comprising at least one reinforcement element according to the invention as described above and/or at least one reinforcement system according to the invention as described above.

In the following, the invention is described in more detail using the preferred embodiments with the aid of the figures, wherein only the features necessary for understanding the invention are shown.

• 1: eine schematische Darstellung einer ersten Garnhalteeinrichtung,
• 2: eine schematische Darstellung einer anderen Garnhalteeinrichtung,
• 3: eine schematische Darstellung noch einer anderen Garnhalteeinrichtung,
• 4: eine schematische Darstellung zweier Garnhalteeinrichtungen als Teil einer Vorrichtung mit mehreren Lagen eines Rovings,
• 5: eine schematische Draufsicht der Garnhalteeinrichtungen mit den Lagen gemäß der 4 in einer Ausgangsposition,
• 6: eine schematische Draufsicht der Garnhalteeinrichtungen mit den Lagen gemäß der 4 in einer gedrehten Position,
• 7: eine schematische Draufsicht der Garnhalteeinrichtungen gemäß der 4 mit einem fertigen Bewehrungselement,
• 8: eine schematische Darstellung des fertigen Bewehrungselementes gemäß der 7, und
• 9: eine schematische Darstellung eines Bewehrungssystems.

They show in detail:

• 1 : a schematic representation of a first yarn holding device,
• 2 : a schematic representation of another yarn holding device,
• 3 : a schematic representation of yet another yarn holding device,
• 4 : a schematic representation of two yarn holding devices as part of a device with several layers of a roving,
• 5 : a schematic plan view of the yarn holding devices with the layers according to the 4 in a starting position,
• 6 : a schematic plan view of the yarn holding devices with the layers according to the 4 in a rotated position,
• 7 : a schematic plan view of the yarn holding devices according to the 4 with a finished reinforcement element,
• 8 : a schematic representation of the finished reinforcement element according to the 7 , and
• 9 : a schematic representation of a reinforcement system.

The 1 to 3 each show a schematic representation of a yarn holding device 10 in various designs. The yarn holding device 10 comprises a roller 11, which is rotatably mounted on a bearing shaft 12. Optionally, the roller 11 itself can also be rotatably mounted. The rotational axis L of the bearing shaft 12 and the rotational axis R of the roller 11 are unequal and, in the embodiment shown here, are perpendicular to one another. For the inventive production of the reinforcement element 1, the roller 11 is rotated about the rotational axis L of the bearing shaft 12, see 5 to 7 .

The embodiments of the 1 to 3 differ only in the shape of the roll 11. According to the 1 The roll 11 is designed as a simple cylinder. At least one roving in several layers 1a expansion is wound around the roll 11, see 4 .

In order to prevent the individual layers 1a from being pressed against one another when the roller 11 rotates, the roller 11 has, according to the 2 a surface profile with transverse grooves 14 in the circumferential direction. The individual layers 1a each lie in the recesses of the transverse grooves 14.

Another approach is the design of the 3 Here, the roll 11 has a conical shape with its thinnest point in the center. This helps ensure that, when the roll 11 rotates, the individual layers 1a lie as close and tightly as possible to one another, resulting in a reinforcement element 1 that is as compact as possible.

Furthermore, the roll 11 comprises a fixing unit 13 in the form of a slot for one end of the roving, see 4 .

The 4 shows a schematic representation of two yarn holding devices 1 as part of a device with a roving of carbon fibers in several layers 1a. The yarn holding devices 1 correspond to the 1 shown embodiment. The rollers 11 are rotatable in opposite directions relative to each other on the bearing shafts 12.

The roving is wound in several layers 1a around the two rollers 11. The ends of the roving are clamped in the slot-shaped fixing unit 13 on the roller 11 shown on the left.

This initial position of the layers 1a guided around the rollers 11 shows the 5 again in a top view.

To produce a reinforcement element 1 according to the invention, the rollers 11 are rotated in opposite directions relative to each other, so that the layers 1a wrap or twist around each other from the center and loops or widenings are created in the area of the rollers 11. The course of the layers 1 after a first rotation of the rollers 11 shows the 6 .

The further the rollers 11 are rotated, the further the layers 1a wrap around each other and form a solid strand with a profiled surface 4, which characterises the finished reinforcement element 1, see 7 .

The 8 Finally, it shows a finished reinforcement element 1 with two loop-shaped widenings 2 at the ends and the profiled surface 4 between them. The surface profiling 4 is formed spirally around the longitudinal alignment of the reinforcement element 1. The loops can be easily pushed upwards over the rollers 11. To stabilize the layers 1a of the finished reinforcement element 1, they can be impregnated. This can, for example, prevent the wrapped layers 1 from unraveling after being removed from the rollers 11.

The 9 shows a schematic representation of a reinforcement system consisting of a reinforcement element 1 according to the 8 with a wound anchor 3 at one end. The wound anchor 3 is designed as a type of separate strapping or wrapping. The wound anchor 3 is arranged around an expansion 2 of the reinforcement element 1, especially when cast in concrete, without direct contact with the reinforcement element 1. The wound anchor 3 shown here is formed from a roving 3a of carbon fibers into a three-dimensional lattice structure and has a tubular shape with a uniform diameter and open ends. The rovings 3a cross over each other several times to ensure a good and stable hold of the wound anchor 3, and above all, are not just wound in a spiral shape.

When the reinforcement system is cast in concrete, when the reinforcement element 1 is loaded in the longitudinal direction, an indirect or contactless force transfer to the coil anchor 3 takes place via the surrounding concrete, which, in addition to the expansions 2, ensures stable anchoring in the concrete.

Although the invention has been illustrated and described in detail by the preferred embodiment, the invention is not limited by the disclosed examples and other variations can be derived therefrom by those skilled in the art without departing from the scope of protection of the invention. In particular, the invention is not limited to the specified combinations of features, but other combinations and partial combinations that are obvious to those skilled in the art can also be formed from the disclosed features. Thus, embodiments are also to be regarded as encompassed and disclosed by the invention that are not explicitly shown or explained in the figures, but which arise and can be produced by separate combinations of features from the explained embodiments. It is also within the scope of the invention to bring about a mechanical reversal of the functions of the individual mechanical elements of the invention.

1. I. Bewehrungselement (1), zumindest aufweisend:
   • einen Strang aus mindestens einem Roving, wobei das mindestens eine Roving entlang der Längsachse des Bewehrungselementes (1) umeinander verschlungen ist, sodass das Bewehrungselement (1) eine profilierte Oberfläche (4) aufweist.
2. II. Bewehrungselement (1) gemäß dem voranstehenden Ausführungsbeispiel, dadurch gekennzeichnet, dass mindestens ein Ende des Bewehrungselementes (1) eine Aufweitung (2) aufweist.
3. III. Bewehrungssystem, zumindest aufweisend:
   • mindestens ein Bewehrungselement (1) gemäß einem der voranstehenden Ausführungsbeispiele sowie mindestens einen Wickelanker (3) an mindestens einem Ende des mindestens einen Bewehrungselementes (1).
4. IV. Bewehrungssystem gemäß dem voranstehenden Ausführungsbeispiel, dadurch gekennzeichnet, dass der mindestens eine Wickelanker (3) ohne direkten Kontakt zu dem Bewehrungselement (1) ausgeführt ist.
5. V. Bewehrungssystem gemäß einem der voranstehenden Ausführungsbeispiele, dadurch gekennzeichnet, dass der mindestens eine Wickelanker (3) einen gleichmäßigen Durchmesser aufweist.
6. VI. Bewehrungssystem gemäß einem der voranstehenden Ausführungsbeispiele, dadurch gekennzeichnet, dass der mindestens eine Wickelanker (3) einen sich verjüngenden Durchmesser aufweist.
7. VII. Bewehrungssystem gemäß einem der voranstehenden Ausführungsbeispiele, dadurch gekennzeichnet, dass der mindestens eine Wickelanker (3) aus mindestens einem sich überkreuzenden Roving (3a) ausgeführt ist.
8. VIII. Bewehrungssystem gemäß einem der voranstehenden Ausführungsbeispiele, dadurch gekennzeichnet, dass der mindestens eine Wickelanker (3) rohrförmig mit offenen Enden ausgeführt ist.
9. IX. Bewehrungssystem gemäß einem der voranstehenden Ausführungsbeispiele, dadurch gekennzeichnet, dass der mindestens eine Wickelanker (3) rohrförmig mit mindestens einem geschlossenen Ende ausgeführt ist.
10. X. Garnhalteeinrichtung (10) für eine Vorrichtung zur Herstellung eines Bewehrungselementes (1) gemäß einem der voranstehenden Ausführungsbeispiel, zumindest aufweisend:
    • eine drehbar gelagerte Rolle (11) und eine Lagerwelle (12) hierfür.
11. XI. Garnhalteeinrichtung (10) gemäß dem voranstehenden Ausführungsbeispiel, dadurch gekennzeichnet, dass die Drehachse (L) der Lagerwelle (12), um welche eine Drehbewegung der Rolle (11) erfolgt, ungleich der Rotationsachse (R) der Rolle (11) ist.
12. XII. Garnhalteeinrichtung (10) gemäß einem der voranstehenden Ausführungsbeispiele, dadurch gekennzeichnet, dass die Rolle (11) eine Fixiereinheit (13) für das mindestens eine Roving aufweist.
13. XIII. Garnhalteeinrichtung (10) gemäß einem der voranstehenden Ausführungsbeispiele, dadurch gekennzeichnet, dass die Rolle (11) eine konische Form aufweist.
14. XIV. Garnhalteeinrichtung (10) gemäß einem der voranstehenden Ausführungsbeispiele, dadurch gekennzeichnet, dass die Rolle (11) eine Oberflächenprofilierung (14) aufweist für einen besseren Halt der Rovings.
15. XV. Vorrichtung zur Herstellung eines Bewehrungselementes (1) gemäß einem der voranstehenden Ausführungsbeispiel, zumindest aufweisend:
    • mindestens eine Garnhalteeinrichtung (10) gemäß einem der voranstehenden Ausführungsbeispiele, wobei mindestens ein Roving in mindestens einer Lage (1a) um die Rolle (11) herumgeführt ist, sodass beim Drehen der Rolle (11) das mindestens eine Roving umeinander verschlungen wird und der erzeugte Strang eine profilierte Oberfläche (4) aufweist.
16. XVI. Vorrichtung gemäß dem voranstehenden Ausführungsbeispiel, dadurch gekennzeichnet, dass zwei Garnhalteeinrichtungen (10) ausgebildet sind, deren Rollen (11) sich in entgegengesetzte Richtung relativ zueinander drehen.
17. XVII. Vorrichtung gemäß einem der voranstehenden Ausführungsbeispiele, dadurch gekennzeichnet, dass das mindestens eine Roving eine Tränkung aufweist.
18. XVIII. Verfahren zur Herstellung eines Bewehrungselementes (1) gemäß einem der voranstehenden Ausführungsbeispiele mittels einer Vorrichtung gemäß einem der voranstehenden Ausführungsbeispiele, zumindest aufweisend die folgenden Verfahrensschritte:
    • Führen mindestens eines Rovings in mindestens einer Lage (1a) in einer Schlaufe (2) um die Rolle (11) der mindestens einen Garnhalteeinrichtung (10),
    • Drehen der Rolle (11) der mindestens einen Garnhalteeinrichtung (10), sodass die Lagen (1a) des mindestens einen Rovings umeinander verschlungen werden, und
    • Lösen der Schlaufe (2) von der Rolle (11) der mindestens einen Garnhalteeinrichtung (10).
19. XIX. Verfahren gemäß dem voranstehenden Ausführungsbeispiel, dadurch gekennzeichnet, dass das mindestens eine Roving vor oder nach dem Herumführen um die Rollen (11) oder erst nach dem Lösen der Schlaufen (2) von den Rollen (11) mit einer Tränkung versehen wird.
20. XX. Verfahren gemäß einem der voranstehenden Ausführungsbeispiele, dadurch gekennzeichnet, dass nachfolgend an mindestens einem Ende des Bewehrungselementes (1) ein Wickelanker (3) positioniert wird zur Erzeugung eines Bewehrungssystems gemäß einem der voranstehenden Ausführungsbeispiele.
21. XXI. Verfahren gemäß dem voranstehenden Ausführungsbeispiel, dadurch gekennzeichnet, dass das Bewehrungselement (1) zum Einbetonieren vorgespannt wird.
22. XXII. Bewehrungselement (1) hergestellt durch ein Verfahren gemäß einem der voranstehenden Ausführungsbeispiele.
23. XXIII. Bauteil aus Beton, zumindest umfassend mindestens ein Bewehrungselement (1) gemäß einem der voranstehenden Ausführungsbeispiele und/oder mindestens ein Bewehrungssystem gemäß einem der voranstehenden Ausführungsbeispiele.

Particularly advantageous variations of exemplary embodiments of the invention described above are described below:

1. I. Reinforcing element (1), comprising at least:
   • a strand of at least one roving, wherein the at least one roving is intertwined along the longitudinal axis of the reinforcement element (1) so that the reinforcement element (1) has a profiled surface (4).
2. II. Reinforcement element (1) according to the preceding embodiment, characterized in that at least one end of the reinforcement element (1) has a widening (2).
3. III. Reinforcement system comprising at least:
   • at least one reinforcement element (1) according to one of the preceding embodiments and at least one winding anchor (3) at at least one end of the at least one reinforcement element (1).
4. IV. Reinforcement system according to the preceding embodiment, characterized in that the at least one winding anchor (3) is designed without direct contact with the reinforcement element (1).
5. V. Reinforcement system according to one of the preceding embodiments, characterized in that the at least one coil anchor (3) has a uniform diameter.
6. VI. Reinforcement system according to one of the preceding embodiments, characterized in that the at least one coil anchor (3) has a tapered diameter.
7. VII. Reinforcement system according to one of the preceding embodiments, characterized in that the at least one wound anchor (3) is made of at least one intersecting roving (3a).
8. VIII. Reinforcement system according to one of the preceding embodiments, characterized in that the at least one coil anchor (3) is tubular with open ends.
9. IX. Reinforcement system according to one of the preceding embodiments, characterized in that the at least one coil anchor (3) is tubular with at least one closed end.
10. X. Yarn holding device (10) for a device for producing a reinforcement element (1) according to one of the preceding embodiments, at least comprising:
    • a rotatably mounted roller (11) and a bearing shaft (12) therefor.
11. XI. Yarn holding device (10) according to the preceding embodiment, characterized in that the axis of rotation (L) of the bearing shaft (12), about which a rotational movement of the roller (11) takes place, is not equal to the axis of rotation (R) of the roller (11).
12. XII. Yarn holding device (10) according to one of the preceding embodiments, characterized in that the roller (11) has a fixing unit (13) for the at least one roving.
13. XIII. Yarn holding device (10) according to one of the preceding embodiments, characterized in that the roller (11) has a conical shape.
14. XIV. Yarn holding device (10) according to one of the preceding embodiments, characterized in that the roller (11) has a surface profiling (14) for a better hold of the rovings.
15. XV. Device for producing a reinforcement element (1) according to one of the preceding embodiments, at least comprising:
    • at least one yarn holding device (10) according to one of the preceding embodiments, wherein at least one roving is guided in at least one layer (1a) around the roll (11) so that when the roll (11) rotates, the at least one roving is entwined and the strand produced has a profiled surface (4).
16. XVI. Device according to the preceding embodiment, characterized in that two yarn holding devices (10) are formed, the rollers (11) of which rotate in opposite directions relative to each other.
17. XVII. Device according to one of the preceding embodiments, characterized in that the at least one roving has an impregnation.
18. XVIII. Method for producing a reinforcement element (1) according to one of the preceding embodiments by means of a device according to one of the preceding embodiments, at least comprising the following method steps:
    • guiding at least one roving in at least one layer (1a) in a loop (2) around the roll (11) of the at least one yarn holding device (10),
    • Rotating the roller (11) of the at least one yarn holding device (10) so that the layers (1a) of the at least one roving are intertwined, and
    • Detaching the loop (2) from the roll (11) of the at least one yarn holding device (10).
19. XIX. Method according to the preceding embodiment, characterized in that the at least one roving is after being led around the rollers (11) or only after the loops (2) have been released from the rollers (11) are impregnated.
20. XX. Method according to one of the preceding embodiments, characterized in that a coil anchor (3) is subsequently positioned at at least one end of the reinforcement element (1) to produce a reinforcement system according to one of the preceding embodiments.
21. XXI. Method according to the preceding embodiment, characterized in that the reinforcement element (1) is prestressed for encasing in concrete.
22. XXII. Reinforcing element (1) produced by a method according to one of the preceding embodiments.
23. XXIII. Concrete component, at least comprising at least one reinforcement element (1) according to one of the preceding embodiments and/or at least one reinforcement system according to one of the preceding embodiments.

List of reference symbols

1

Reinforcement element

1a

Position of a roving

2

Widening

3

Winding anchor

3a

Roving of the winding anchor

4

profiled surface of the reinforcement element

10

Yarn holding device

11

role

12

bearing shaft

13

slot

14

transverse grooves

R

Rotation axis of the roll

L

Rotation axis of the bearing shaft

QUOTES CONTAINED IN THE DESCRIPTION

This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2007 / 074840 A1 [0006]
• JP 05010005 A [0007]

Claims (14)

Reinforcement element (1), comprising at least: a strand of at least one roving, wherein the at least one roving is intertwined along the longitudinal axis of the reinforcement element (1), so that the reinforcement element (1) has a profiled surface (4). Reinforcing element (1) according to the preceding Patent claim 1 , characterized in that at least one end of the reinforcement element (1) has an expansion (2). Reinforcement system, at least comprising: at least one reinforcement element (1) according to one of the preceding Patent claims 1 until 2 and at least one winding anchor (3) at at least one end of the at least one reinforcement element (1). Reinforcement system according to the above Patent claim 3 , characterized in that the at least one winding anchor (3) is designed without direct contact with the reinforcement element (1). Reinforcement system according to one of the preceding Patent claims 3 until 4 , characterized in that the at least one winding anchor (3) is made of at least one crossing roving (3a). Yarn holding device (10) for a device for producing a reinforcing element (1) according to one of the preceding Patent claims 1 until 5 , at least comprising: a rotatably mounted roller (11) and a bearing shaft (12) therefor. Yarn holding device (10) according to the above Patent claim 6 , characterized in that the axis of rotation (L) of the bearing shaft (12), about which a rotational movement of the roller (11) takes place, is not equal to the axis of rotation (R) of the roller (11). Yarn holding device (10) according to one of the preceding Patent claims 6 until 7 , characterized in that the roll (11) has a fixing unit (13) for the at least one roving. Device for producing a reinforcement element (1) according to one of the preceding Patent claims 1 until 2 , at least comprising: 9.1 at least one yarn holding device (10) according to one of the preceding Patent claims 6 until 8 , wherein 9.2. at least one roving is guided in at least one layer (1a) around the roll (11), so that when the roll (11) rotates, the at least one roving is entwined and the strand produced has a profiled surface (4). Device according to the above Patent claim 9 , characterized in that two yarn holding devices (10) are formed, the rollers (11) of which rotate in opposite directions relative to one another. Method for producing a reinforcement element (1) according to one of the preceding Patent claims 1 until 2 by means of a device according to one of the preceding Patent claims 9 until 10 , at least comprising the following method steps: 11.1. Guiding at least one roving in at least one layer (1a) in a loop (2) around the roll (11) of the at least one yarn holding device (10), 11.2. Rotating the roll (11) of the at least one yarn holding device (10) so that the layers (1a) of the at least one roving are entwined around one another, and 11.3. Detaching the loop (2) from the roll (11) of the at least one yarn holding device (10). Procedure according to the above Patent claim 11 , characterized in that a winding anchor (3) is subsequently positioned at at least one end of the reinforcement element (1) to produce a reinforcement system according to one of the preceding Patent claims 3 until 5 . Reinforcing element (1) produced by a method according to one of the preceding Patent claims 11 until 12 . Concrete component, at least comprising at least one reinforcement element (1) according to one of the preceding Patent claims 1 until 2 and/or at least one reinforcement system according to one of the preceding Patent claims 3 until 5 .

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