DE102017115302B3 - Method of identifying a suitable wire, wire mesh connector and method of making a wire mesh connector - Google Patents

Abstract

The invention relates to a method for identifying a suitable wire (10), in particular from a high-strength steel, preferably with a tensile strength of at least 1500 N / mm and / or preferably with a diameter of at least 3 mm, for producing a connecting element (12) for wire mesh (14, 16) or the like. It is proposed that the wire (10) be identified as suitable when a test piece (18) of the wire (10) at least one bending test about at least one bending cylinder (20, 22) whose diameter is smaller than a diameter and in particular as a radius of the wire (10), at least once by more than 90 ° can be bent without breakage.

Description

State of the art

The invention relates to a method for identifying a suitable wire according to the preamble of claim 1, a method for producing a connecting element for wire mesh according to claim 3 and a connecting element for wire mesh according to claim 8.

From the CH 699050 B1 is a connecting element made of a steel wire for connecting two juxtaposed wire mesh is known, which is introduced in an open state in the wire mesh to be joined and then closed by means of a portable bending device.

The object of the invention is in particular to achieve advantageous properties in terms of mountability. In addition, an object of the invention is in particular to achieve advantageous properties in terms of mechanical strength. In addition, an object of the invention is in particular to achieve a high cost efficiency, in particular due to a time-efficient handling. The object is achieved by the features of claims 1, 3 and 8, while advantageous embodiments and modifications of the invention can be taken from the dependent claims.

Advantages of the invention

The invention is based on a method for identifying a suitable wire, in particular a high-strength steel, advantageously having a tensile strength of at least 1500 N / mm ² , more preferably of at least 1600 N / mm ² , preferably of at least 1700 N / mm ² , particularly preferably 1770 N / mm ² , in particular also at least 1800 N / mm ² or at least 2000 N / mm ² , and / or advantageously with a diameter of at least 3 mm, particularly advantageously at least 4 mm, in particular also at least 5 mm or at least 6 mm, for producing a connecting element for wire mesh or the like.

It is proposed that the wire is identified as being suitable if a test piece of the wire is particularly advantageous in at least one bending test about at least one bending cylinder whose diameter is smaller than a diameter and in particular as a radius of the wire, at least once, advantageously at least twice bent at least three times, preferably at least four times and more preferably at least five times, by more than 90 °, advantageously bent by at least 120 °, particularly advantageously by at least 150 ° and preferably by at least 170 °, preferably bent back and forth, in particular in the case of repeated bending , can be.

By means of the method according to the invention for identifying a suitable wire, advantageous properties with regard to time and / or cost efficiency, in particular with simultaneous achievement of a high load-bearing capacity, can be achieved. In particular, a wire can be examined quickly and / or cost-effectively and / or reliably for suitability. In addition, time-consuming and / or costly test runs on production systems can at least largely be dispensed with. Furthermore, advantageous properties with respect to a, in particular mechanical, load capacity can be achieved. In particular, due to a comparison with a bending test of DIN EN 10270-1 application-specific tightening procedure, a wire can be reliably tested for its suitability for the production of load-bearing fasteners.

In addition, the invention relates to a method for producing a connecting element for wire mesh or the like, with at least one connection region in which in a finished state of the connecting element to be connected objects, such as wires of two wire mesh to be connected, are insertable, wherein at least a part of the connecting element of a , in particular according to a method according to the invention identified as suitable, wire, in particular made of a high-strength steel, by bending such that the wire at least partially defines the connection region, wherein the connection region in an unconnected state of the connecting element, in particular outside of the wire mesh to be joined and / or before joining the wire mesh, is completed.

The inventive method for producing a connecting element advantageous properties can be achieved in terms of cost-effective and / or precise production. In particular, deviations due to manual work steps can be advantageously avoided. In addition, a high throughput can be achieved in a production. In addition, a connecting element can be completely manufactured even before assembly at a place of use, whereby in particular a geometry is flexible and / or precisely adjustable.

Furthermore, the invention relates to a connecting element for wire mesh or the like, in particular produced in a method according to the invention for producing a Connecting element, with at least one connecting portion, in which in a finished state of the connecting element to be connected objects, for example wires of two wire mesh to be connected, are insertable, with at least one, in particular according to a method according to the invention as appropriate identified, bent wire, in particular of a high-strength steel which at least partially defines the connection region, and which in a bending test around at least one bending cylinder whose diameter is smaller than a diameter and in particular as a radius of the wire, at least once, advantageously at least twice, more preferably at least three times, preferably at least four times and especially preferably at least five times, by more than 90 °, advantageously by at least 120 °, particularly advantageously by at least 150 ° and preferably by at least 170 ° fracture-free bendable.

The inventive design of the connecting element can advantageously be a simple and / or time-efficient installation, in particular at a place of use and / or at an installation site can be achieved. Furthermore, advantageous properties with regard to avoiding assembly errors can be achieved. Furthermore, a force required for an assembly effort can be reduced, yet advantageously a high reliability and / or load capacity of a connection can be achieved. In addition, a high degree of flexibility with regard to a geometry and in particular its adaptation to different requirements can be achieved. Furthermore, a load-bearing and / or reliable connection element can be provided.

In this context, a "wire" is to be understood as meaning, in particular, an elongate and / or thinner and / or at least mechanically bendable and / or flexible body. It is conceivable that the wire mesh is made of an identical wire as the connecting element. Of course, it is also conceivable that differently shaped wires are used for the wire mesh and the connecting element, which differ for example with regard to a material and / or a diameter and / or a surface finish and / or a coating and / or a tensile strength or the like. Advantageously, the wire has an at least substantially constant, in particular circular or elliptical cross section along its longitudinal direction. Particularly advantageously, the wire is designed as a round wire. But it is also conceivable that the wire is at least partially or completely formed as a flat wire, a square wire, a polygonal wire and / or a profile wire. For example, the wire may be formed at least partially or completely from metal, in particular a metal alloy, and / or organic and / or inorganic plastic and / or a composite material and / or an inorganic non-metallic material and / or a ceramic material. For example, it is conceivable that the wire is designed as a polymer wire or a plastic wire. In particular, the wire may be formed as a composite wire, such as a metal-organic composite wire and / or a metal-inorganic composite wire and / or a metal-polymer composite wire and / or a metal-metal composite wire or the like. In particular, it is conceivable that the wire comprises at least two different materials, which are in particular arranged according to a composite geometry relative to each other and / or at least partially mixed together. The wire is advantageously designed as a metal wire, in particular as a steel wire, in particular as a stainless steel wire. Preferably, the wire has a particular corrosion resistant coating and / or sheath such as a zinc coating and / or an aluminum-zinc coating and / or a plastic coating and / or a PET coating and / or a metal oxide coating and / or a ceramic coating or the like , Preferably, the wire is at least partially, in particular, at least apart from a coating, completely made of high-strength steel. Preferably, the wire is a high strength steel wire. For example, the high strength steel may be spring steel and / or wire steel and / or steel suitable for wire ropes. In particular, the wire has a tensile strength, in particular a nominal tensile strength, of at least 800 N mm ^-2 , advantageously of at least 1000 N mm ^-2 , more preferably of at least 1200 N mm ^-2 , preferably of at least 1400 N mm ^-2 and more preferably of at least 1600 N mm ^-2, especially a tensile strength of about 1770 N mm ^-2, or from about 1960 N mm ^-2. It is also conceivable that the wire has an even higher tensile strength, for example a tensile strength of at least 2000 N mm ^-2 , or of at least 2200 N mm ^-2 , or even of at least 2400 N mm ^-2 . The specified values, value ranges and features of the wire are conceivable both for a wire of a connecting element and for a wire of a wire mesh.

In particular, the wire netting is as an embankment safety, as a safety fence, as a safety fence, as a rockfall protection net, as a fence, as a fish farming net, as a predator protection net, as a fencing fence, as a tunnel safety, as a hillside protection, as a motor sport safety fence, as a road fence, as an avalanche safety device or the like, or at least as a part thereof. In particular, because of its high strength and / or resilience and applications as a cover and / or sheathing, for example, power plants, factory buildings, homes or other buildings, as explosion protection, bullet protection, as a shield against flying objects, as safety net, as Rammschutz or the like are conceivable , Preferably, the wire mesh has a plurality of interconnected and / or braided and / or nested spirals. The wire mesh may, for example, horizontally or vertically or obliquely, in particular relative to a substrate, designed and / or arranged and / or mounted. In particular, the wire mesh is formed flat. Advantageously, the wire mesh is periodically and / or periodically constructed in at least one direction. The wire mesh can preferably be rolled in and / or rolled out, in particular around an axis which runs parallel to a main extension direction of the coils, which are preferably arranged parallel to one another. A wire mesh is advantageous a braid of individual wires. In principle, however, wire meshes are conceivable, which are at least partially or completely formed in particular braided strands, wire cables, wire bundles or the like.

In particular, the test piece has a length which is at least 10 times, advantageously at least 15 times, preferably at least 20 times and particularly preferably at least 25 times, in particular also at least 30 times or at least 40 times as large as the diameter of the wire. In particular, the test piece may have a length of 75 mm, in particular for a wire diameter of, for example, 2 mm. For example, the test piece may also have a length of 85 mm, in particular for a wire diameter of, for example, 3 mm. Furthermore, the test piece may have a length of 100 mm, in particular for a wire diameter of, for example, 4 mm. Likewise, a length of the test piece of 115 mm is conceivable, in particular for a wire diameter of, for example, 5 mm. Preferably, the wire is bent in the back-and-forth bending test by two opposite, in particular identically formed, bending cylinders. Advantageously, the bending cylinders are provided to perform the back-and-forth bending test deformation-free and / or damage-free and / or to survive. Advantageously, the diameter of the bending cylinder is 0.625 times the radius of the wire and / or preferably 1.25 mm, in particular in the case of a wire diameter of 4 mm.

Advantageously, the connecting element is made of a single wire. Particularly advantageously, the connecting element, in particular exclusively, by means of bending and / or by cutting the wire is made. Preferably, the connecting region, in particular in a frontal view perpendicular to a main extension plane of the connecting element, is symmetrical, in particular mirror-symmetrical, preferably with respect to a longitudinal axis of the connecting element. Preferably, the longitudinal axis of the connecting element extends at least substantially parallel to a main extension direction of the connecting element. A "main extension plane" of an object should be understood to mean, in particular, a plane which is parallel to a largest side surface of a smallest imaginary cuboid which just completely surrounds the object, and in particular runs through the center of the cuboid. A "main direction of extension" of an object should be understood to mean, in particular, a direction which runs parallel to a longest edge of a smallest imaginary cuboid which just completely encloses the object. By "at least substantially perpendicular" is meant in particular an alignment of a direction relative to a reference direction, in particular in a reference plane, wherein the direction and the reference direction include an angle, in particular less than 8 °, preferably less than 5 ° and particularly advantageously deviates less than 2 ° from a right angle.

Preferably, the connecting element is annular and / or ring-shaped, but in particular has a deviating from a circular ring and / or an elliptical ring shape. In particular, and / or the wire is bent in total by more than 360 °. Preferably, and / or the wire is bent only in one direction, in particular only to the left or only to the right. The wire preferably forms at least two, in particular a plurality, of sections, each of which has an at least substantially straight course. Particularly preferably, the two sections are connected to the at least substantially straight progressions by at least one bent section of the wire, in particular directly. Preferably, the connecting element is integrally formed. In particular, the bent wire forms the entire connecting element. By the fact that an object has an at least substantially straight course should be understood in particular that at least one line exists with an at least substantially straight course which runs completely within the object and which extends over at least 70%, advantageously over at least 80%. and particularly advantageously extends over at least 90% of a length of the object or preferably over the length of the object. An "at least essentially straight course" of a line is to be understood in particular as meaning that a smallest rectangle enclosing the line has a long side which at least 10 times, advantageously at least 20 times, more preferably at least 50 times, preferably at least 100 times, and most preferably at least 200 times as long as a short side of the rectangle and that is advantageous for every point on the line, an angle between a tangent in the point and the long side of the rectangle is at most 10 °, advantageously at most 8 °, particularly advantageously at most 5 °, preferably at most 3 ° and particularly preferably at most 2 °.

Advantageously, the connecting element has at least one first leg and at least one second leg, which are arranged in particular opposite one another and are advantageously formed by the wire. Preferably, a connecting portion of the connecting element, which, in particular directly, connects the first leg and the second leg, connects one, in particular arcuate, preferably semicircular, curved shape, in particular in the frontal view. Preferably, in particular in the frontal view, a, in particular internal, radius of curvature of the connecting portion of the legs at least as large, preferably at least 1.25 times as large and more preferably at least 1.4 times as large and / or at most four times, advantageously at most three times and preferably at most twice as large as the diameter of the wire. Preferably, in particular in the frontal view, an internal radius of curvature of the connecting portion of the legs corresponds to 1.5 times the wire diameter and / or preferably 6 mm.

Advantageously, the first leg has at least one first hook. Particularly advantageously, the first leg, in particular on an end opposite the connecting section of the legs, forms the first hook. Particularly advantageously, the leg is curved in a region of the first hook by at least 90 °, advantageously by at least 120 ° and particularly advantageously by at least 140 ° and / or by at most 180 °, advantageously by at most 170 ° and particularly advantageously by at most 160 °, preferably by 150 °, in particular in the same direction as the connecting portion of the legs. In particular, preferably, in the frontal view, a, preferably internal, radius of curvature of the leg in the region of the first hook or its curvature at most as large, preferably at most 0.8 times as large and more preferably at most 0.7 times as large as a diameter, and preferably like a radius of the wire, advantageously 0.625 times the radius of the wire. For example, in the case of a wire diameter of 4 mm, the radius of curvature is advantageously 1.25 mm. The first hook preferably comprises two sections with an at least substantially straight course, and particularly preferably a connecting section which connects the same, in particular directly, and which is curved in accordance with said curvature of the hook. Preferably, in particular in the frontal view, the connecting portion of the first hook is formed in a circular arc and / or curved at an angle of 150 °. Preferably, in particular in the frontal view, the first hook is mirror-symmetrical with respect to an angle bisector of the connecting portion, which is identical in particular to the longitudinal axis of the connecting element. Advantageously, the second leg has at least one second hook. Particularly advantageously, the second leg, in particular on an end opposite the connecting section of the legs, forms the second hook. In particular, the second hook to the first hook is at least substantially identical or identical and / or mirror-symmetrical. Advantageously, at least the radius of curvature of the first hook at least substantially corresponds to a radius of curvature of the second hook or is particularly advantageous with this identical. Preferably, the first hook and the second hook, in particular in the frontal view, arranged congruently to each other. In particular, the first hook and the second hook are curved against each other and / or arranged one behind the other in the frontal view and / or immediately adjacent to each other. Advantageously, the connecting region tapers, in particular at least in sections linearly, starting from the connecting region of the legs in a direction toward the first hook and the second hook, in particular in the frontal view. Particularly advantageously, the legs, in particular when viewed perpendicular to the main extension plane of the connecting element, completely surround the connecting region. By "at least substantially" is to be understood in this context in particular that a deviation from a predetermined value in particular less than 15%, preferably less than 10% and particularly preferably less than 5% of the predetermined value.

The invention further comprises a mesh installation with at least one first wire mesh and with at least one second wire mesh, which are connected by means of at least one connecting element according to the invention. The braid installation may be, for example, a security fence, a safety fence, a rockfall protection net, a fence, a fish farming net, a predator protection net, a fencing fence, a tunnel safety, a hillside protection, a motor sports safety fence, a road fence, an avalanche safety device or the like ,

Preferably, however, an edge region of the first wire mesh and an edge region of the second wire mesh, in particular at least one wire, but conceivably also a strand, a wire bundle, a wire rope or the like, at least one marginal mesh of the first wire mesh and at least one wire, conceivably however Also, for example, a strand, a wire bundle, a wire rope or the like, at least one marginal mesh of the second wire mesh, disposed within the connecting region of the connecting element and in particular introduced into this. Advantageously, the wire meshes are connected to one another by means of a plurality of connecting elements arranged in particular next to one another and / or at regular intervals, in particular at least substantially identically formed. It is also conceivable that different connecting elements, which differ, for example, with regard to a geometry and / or a load capacity and / or a wire diameter and / or a material or the like, are used for a connection of the wire mesh. Preferably, in each case two stitches to be connected are connected by means of exactly one connecting element. However, it is also conceivable that two stitches to be connected are connected to a plurality of connecting elements, for example with two or three or four or even more, preferably with two connecting elements, in particular identical to one another. Advantageous properties with regard to a load-bearing and / or flexibly adaptable connection can be achieved. In addition, a simple and / or inexpensive to produce braid installation can be provided, in particular their parts are reliably and / or easily connected to each other. By "at least substantially identical" objects are meant in particular objects that are constructed so that they can each perform a common function and their construction apart from manufacturing tolerances at most differ by individual elements that are immaterial to the common function, and advantageous objects that are identical except for manufacturing tolerances and / or in the context of production engineering possibilities, which should be understood by identical objects in particular also mutually symmetrical objects.

It is also proposed that the wire is only identified as suitable if it additionally has a corrosion protection coating, in particular a zinc and / or a zinc-aluminum protective coating, with a mass, in particular with a nominal mass, advantageously at least in a brand-new and / or unprocessed state, of more than 110 g / m ² , advantageously of at least 130 g / m ² , particularly advantageously of at least 150 g / m ² . Advantageously, the zinc-aluminum protective coating contains 95% zinc and 5% aluminum, but other mixing ratios are conceivable. Alternatively, for example, a plastic coating and / or a metal oxide coating and / or a ceramic coating or the like is conceivable. Advantageously, the wire of the connecting element has a correspondingly provided corrosion protection coating. As a result, a high degree of reliability can be achieved and / or damage due to corrosion on installed connecting elements can be avoided.

Alternatively or additionally, it is conceivable that the wire is at least partially and / or at least partially, advantageously at least a large part and particularly advantageously completely formed of a corrosion-resistant and / or noble material, for example stainless steel, titanium, a stainless alloy from a stainless composite material or the like. In particular, at least 55%, advantageously at least 65%, preferably at least 75%, particularly preferably at least 85%, and particularly advantageously at least 95%, preferably with respect to one volume and / or or on a weight, but especially fully understood.

It is also proposed that in at least one method step at least one bending point of the wire is produced by means of at least one overbending of the wire. In particular, the wire is at least 2 °, advantageously at least 5 °, more preferably at least 10 ° and preferably at least 15 ° and / or at least 5%, advantageously at least 10%, more preferably at least 20% and preferably at least at least 30%, in particular based on a bending angle of the Biegestellt, overbow. The bending point may be, for example, the connecting portion of the first leg and the second leg. Preferably, at least the first hook and / or the second hook made by overbending. As a result, advantageously, a geometry can also be manufactured precisely using a high-strength wire.

In a further embodiment of the invention it is proposed that in at least one method step at least one bending point of the wire is bent, in particular by means of at least one overbending, whose bending radius is smaller than a diameter and in particular as a radius of the wire. As a result, a high degree of mechanical loadability, in particular in the case of a tensile load, of the connecting element can advantageously be achieved. In particular, the first hook and / or the second hook is bent by bending, in particular by overbending, of the wire by a bending radius that at least substantially corresponds to the radius of curvature of the first hook and / or the second hook. Advantageously, the first hook and / or the second hook is bent by at least 120 ° and preferably by at least 150 °, in particular in addition to a corresponding overbending. Particularly advantageously, the first hook and the second hook are bent in opposite directions and preferably at the same radius of curvature.

In addition, it is proposed that in at least one method step at least two legs of the connecting element, in particular the first leg and the second leg, of the connecting element are manufactured by at least one bending, in particular by means of at least one overbending, of the wire around at least one bending mandrel such that the legs offset from each other and / or at least partially bent past each other. As a result, advantageously a cost-effective production can be achieved. In addition, in a single step, the connecting portion of the legs can be made precisely. Preferably, the wire is fed to the mandrel perpendicular to its longitudinal axis. In particular, in this case, at least one of the legs is bent laterally during the bending, in particular by an angle of at most 15 °, advantageously of at most 10 ° and preferably by 8 ° relative to the corresponding other leg, that the legs can be bent past each other. It is also conceivable for the wire to be fed to the bending mandrel at an angle other than 90 °, in particular different by the amount of an angle between the legs, and the legs subsequently bent in a direction perpendicular to the longitudinal axis of the bending mandrel. Preferably, the first leg and the second leg, in particular in a view parallel to the main extension plane of the connecting element and / or perpendicular to a longitudinal axis of the connecting element, an angle of at most 15 °, preferably at most 10 ° and preferably of 8 °.

In an advantageous embodiment of the invention, it is proposed that the legs are each provided with at least one hook, in particular the first leg with the first hook and / or the second leg with the second hook, and the legs are bent over one another in such a way that at least after a spring-back of the legs, the hooks define at least one insertion gap to the connection region. Preferably, the insertion gap has a width, in particular perpendicular to the main extension plane of the connecting element and / or between bending points of the hooks and / or between straight portions of the hooks, which is smaller than a diameter of the wire and / or as a diameter of wires to be connected , so that advantageously slipping out of the connection area after a connection of wire mesh by means of the connecting element is prevented. In particular, the width of the insertion gap corresponds at most to 0.7 times, advantageously at most 0.5 times, particularly advantageously at most 0.3 times and preferably 0.275 times the wire diameter. In particular, the width of the insertion gap, for example, for a wire diameter of 4 mm, advantageously 1.1 mm. Advantageously, a minimum distance between a surface of the first hook and a surface of the second hook, in particular along their courses, at least substantially constant and advantageously corresponds to the width of the insertion gap.

In a particularly advantageous embodiment of the invention it is proposed that the wire, in particular in a finished state of the connecting element, and / or the connecting element has a breaking force of at least 10 kN, advantageously of at least 20 kN, particularly advantageously of at least 30 kN, in particular Case of a wire diameter of 4 mm. The breaking force may in particular depend on a diameter of the wire and / or on a diameter of wires to be connected braids. In particular smaller breakage forces are conceivable for smaller wire diameters and larger wire diameters for larger wire diameters.

Furthermore, it is proposed that the wire has a diameter of more than 4 mm. For example, the wire may have a diameter of at least 4.25 mm, of at least 4.5 mm, of at least 5 mm, of at least 6 mm, or also of at least 7 mm. In this way, a connecting element with a high load capacity can be provided, which can be used, for example, for connecting braids with correspondingly thick wires, for strand braids and / or for braids with a plurality of and / or multiple wound wires.

Alternatively, it is proposed that the wire has a diameter of less than 4 mm. For example, the wire may have a diameter of at most 3.75 mm or at most 3.5 mm or at most 3 mm or at most 2 mm or even at most 1.5 mm. In this way, a cost-effective and / or easy to produce connecting element can be provided, which is particularly useful for connecting braids of thin and / or non-high-strength wires. In addition, a connecting element can be provided, which in a Connection of high-strength braids can form a predetermined breaking point.

In principle, it is conceivable that at least one loadability parameter, in particular a breaking force, of the connecting element is greater than a corresponding loadability parameter, in particular a breaking force of the first wire mesh and / or the second wire mesh, advantageously at least 5%, particularly advantageously at least 10% by at least 20%, more preferably by at least 50% but also for example by at least 100% or by at least 200%. The loadability parameter may also be, for example, a corrosion resistance, a temperature resistance, a flexural rigidity or the like. In this way, advantageously, a connecting element can be provided, which enables a reliable connection of braids, in particular in such a way that, in a loading case, damage initially occurs in a braid area.

Alternatively, it is also conceivable that at least one load-bearing parameter, in particular a breaking force, of the connecting element is smaller than a corresponding load-bearing parameter, in particular a breaking force, of the first wire mesh and / or of the second wire mesh, advantageously by at least 5%, particularly advantageously by at least 10%, preferably at least 20%, more preferably at least 50% but also, for example, at least 80% or at least 90%. The loadability parameter may also be, for example, a corrosion resistance, a temperature resistance, a flexural rigidity or the like. In this way, advantageously, a connecting element can be provided which can form a predetermined breaking point. In particular, advantageously occurs in a load case damage first in a connection region of wire mesh.

In particular, in the case that the first wire mesh and the second wire mesh differ with respect to the load capacity parameter is also conceivable that the load capacity parameter of the connecting element is greater than the load capacity of the first wire mesh but smaller than that of the second wire mesh or vice versa. As a result, it can be ensured, for example, that damage initially occurs in a specific wire mesh in a load case.

Advantageous properties in terms of cost-effective and / or less error-prone mounting can be achieved in particular by means of a method for producing a braid installation according to the invention, wherein a part, preferably at least one wire, conceivable way, however, for example, a wire, a wire bundle, a wire rope or the like, at least a, in particular marginal, mesh, the first wire mesh, and / or a part, preferably at least one wire, but conceivably also, for example, a strand, a wire bundle, a wire rope or the like, at least one, in particular peripheral, mesh, of the second wire mesh in the completed state of the connection area is introduced into the connection area. Preferably, for insertion, the connecting element is pushed over the wire of the loop of the first wire mesh and / or over the wire of the mesh of the second wire mesh.

In an advantageous embodiment, it is proposed that in at least one method step, the first wire mesh and the second wire mesh be secured against being threaded out and / or slipping out of the connection region. In particular, the first hook and the second hook secure, preferably due to the insertion gap, at least one arranged in the connection region wire of the first wire mesh and arranged in the connection region wire of the second wire mesh against a threading and / or slipping out. As a result, advantageously, a high degree of reliability of a connection can be achieved.

In a particularly advantageous embodiment, it is proposed that in at least one method step at least the part of the first wire mesh and / or at least the part of the second wire mesh in an insertion between at least two sections, in particular between the first hook and the second hook, the curved wire of the Connecting element, preferably pressed through the insertion gap, against a force applied by the sub-sections force in the connection region and / or pulled. In particular, the wire of the first wire mesh and / or the wire of the second wire mesh temporarily push apart the hooks during insertion, in particular in the case that the wire of the first wire mesh and / or the wire of the second wire mesh have a diameter that is greater than the width of the insertion gap. Advantageously, the introduction is carried out by a single person. In particular, the connecting element is intended to allow a tool-free insertion of wires in the connection region. Preferably, a force applied by the hooks and / or the legs in the insertion, in particular at least one wire having a diameter of at most 7 mm, preferably of at most 5 mm, for example 4 mm or 3 mm, is such that the insertion by a person without tools is feasible.

The method according to the invention, the connecting element according to the invention and the braiding installation according to the invention need not be limited to the applications and embodiments described above. In particular, the method according to the invention, the connecting element according to the invention and the braiding installation according to the invention for performing a function described herein can have a number deviating from a number of individual elements and / or components and / or units and / or method steps mentioned herein. In addition, in the value ranges indicated in this disclosure, values lying within the stated limits are also to be disclosed as disclosed and used as desired.

list of figures

Further advantages emerge from the following description of the drawing. The drawings illustrate several possible embodiments and variants of the invention. The drawings, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

• 1 Ein Verbindungselement für Drahtgeflechte oder dergleichen in einer schematischen Frontansicht,
• 2 das Verbindungselement in einer schematischen Seitenansicht,
• 3 eine Testvorrichtung zur Durchführung eines Biegetests eines Drahts,
• 4 ein schematisches Ablaufdiagramm eines Verfahrens zur Identifikation eines geeigneten Drahts,
• 5 eine Biegevorrichtung zur Herstellung des Verbindungselements in einer schematischen Darstellung,
• 6 ein schematisches Ablaufdiagramm eines Verfahrens zur Herstellung des Verbindungselements,
• 7 eine Geflechtinstallation in einer schematischen Darstellung,
• 8 ein schematisches Ablaufdiagramm eines Verfahrens zur Herstellung der Geflechtinstallation und
• 9 eine weitere Geflechtinstallation in einer schematischen Darstellung.

Show it:

• 1 A connecting element for wire mesh or the like in a schematic front view,
• 2 the connecting element in a schematic side view,
• 3 a test device for performing a bending test of a wire,
• 4 a schematic flow diagram of a method for identifying a suitable wire,
• 5 a bending device for producing the connecting element in a schematic representation,
• 6 a schematic flow diagram of a method for producing the connecting element,
• 7 a mesh installation in a schematic representation,
• 8th a schematic flow diagram of a method for producing the mesh installation and
• 9 another braid installation in a schematic representation.

Description of the embodiments

The 1 shows a connecting element 12 for wire mesh 14 . 16 (see. 7 ) or the like in a schematic side view. The 2 shows the connecting element 12 in a schematic side view. The connecting element 12 is connected to edges of wire mesh 14 . 16 intended. In the present case, the connecting element 12 as a wire mesh connection element, in particular as a connection clip, advantageously formed as a Drahtgeflechtverbindugnsclip.

The connecting element 12 has at least one, in the present case exactly one, connection area 26 in which in a finished state of the connecting element 12 objects to be connected 28 . 30 For example, wires of two wire mesh to be connected 14 , 16 (cf. 7 ) are insertable. The connecting element 12 has at least one bent wire 10 on top of the connection area 26 at least partially defined. The wire 10 is in a bending test to at least one bending cylinder 20 . 22 (see. 3 ) whose diameter is smaller than a diameter of the wire 10 is, at least once bendable by more than 90 ° fracture-free.

In the present case, the wire 10 several times, for example at least twice, around a bending cylinder 20 . 22 bendable without breakage, whose diameter is smaller than a radius of the wire 10 and which corresponds in particular to a 0.625 times the radius of the wire 10. In addition, the wire 10 each bendable by more than 120 ° without breakage.

The wire 10 is formed in the present case of a high strength steel. In particular, the wire 10 a high strength steel wire. In particular, the high-strength steel has a tensile strength of at least 800 N mm ^-2 and advantageously at least 1600 N mm ^-2 . In the present case, the tensile strength of the wire 10 for example 1770 N mm ^-2 . In principle, however, as mentioned above, other tensile strengths, in particular even greater tensile strengths, are conceivable.

Furthermore, the wire points 10 in the present case a diameter of 4 mm. In principle, however, other diameters are conceivable, as mentioned in particular above. For example, in a first modification, the wire 10 have a diameter of less than 4 mm, for example a diameter of 3 mm or 2 mm. Furthermore, in a second modification of the wire 10 have a diameter of more than 4 mm, for example a diameter of 5 mm or 6 mm. About the diameter of the wire 10 , especially in combination with its tensile strength, is a load capacity and / or a breaking force of the connecting element 12 adjustable. This can for example be adaptable to different requirements.

The wire 10 has at least in a mint condition, in particular at least in an unbent state before its bending to the connecting element 12 , a corrosion protection coating 24 with a mass of more than 110 g / m ² . In the present case, the corrosion protection coating 24 For example, a mass of about 150 g / m ² on. Furthermore, in the present case, the anti-corrosion coating 24 is a zinc-aluminum protective coating, wherein, as mentioned above, other materials are conceivable.

The wire 10 has a breaking force of at least 10 kN. In the present case, the breaking force of the wire 10 , in particular in a tensile test parallel to the longitudinal axis 64 , at least 20 kN and advantageously at least 30 kN. Especially in the case of a diameter of the wire 10 greater than 4 mm, even larger breaking load values are conceivable. Likewise, for example, in the case of a diameter of the wire 10 less than 4 mm, smaller breaking force values conceivable.

The connecting element 12 has exactly one wire in this case 10 on. The wire 10 forms the connecting element 12 , in particular completely. The connecting element 12 is formed as a bent piece of wire. The connecting element 12 is formed in one piece.

The connecting element 12 is ring-shaped. The wire 10 surrounds the connection area 26 , Especially in a frontal view perpendicular to a main extension plane of the connecting element 12 , Completely. The wire 10 runs around the connection area 26 around.

The connecting element 12 has a longitudinal axis 64 on. In the present case, the longitudinal axis 64 of the connecting element 12 at least substantially parallel to a main direction of extent 66 of the connecting element 12 arranged. The connection area 26 is mirror-symmetrical. In the present case, the connection area 26 in the frontal view mirror-symmetric with respect to the longitudinal axis 64 of the connecting element 12 ,

The connecting element 12 has a first leg 44 and a second leg 46. The wire 10 forms the first leg 44 and / or the second leg 46 out. At least in the frontal view enclose the first leg 44 and the second leg 46 the connection area 26 Completely. The first leg 44 and the second leg 46 are interconnected, in particular on a bottom 68 of the connecting element 12 ,

The first leg 44 and the second leg 46 together form a connecting section 78 out. In an area of the connection section 78 is the wire 10 bent. In the present case, the connecting section 78 bent by 180 °. In addition, the connection section 78 bent with a constant radius of curvature. An inner radius of curvature of the connecting portion 78 in the present case is about 6 mm.

To the connecting section 78 concludes at least a straight section in the present case 70 of the first thigh 44 at. The straight section 70 of the first leg 44 has in the present case a length of about 24 mm. In addition, closes at the connecting section 78 a straight section 72 of the second leg 46 identical in the present case to the straight section 70 of the first thigh 44 is trained. The straight section 70 of the first thigh 44 runs parallel to the straight section 72 of the second leg 46 and / or parallel to the longitudinal axis 64 of the connecting element 12 ,

At the straight section 70 of the first thigh 44 closes a second straight section 74 of the first thigh 44 to the straight section 70 of the first thigh 44 is arranged at an angle, in the present case at an angle of 15 °. The second leg 46 has an analogously formed second straight section 76 on.

The first leg 44 forms a first hook 50 out. The first catch 50 is at a top 80 of the connecting element 12 arranged. The first catch 50 is on one of the connecting section 78 opposite side of the connecting element 12 arranged. The first catch 50 is curved inwards. In the frontal view are the first catch 50 and the connecting section 78 curved in the same sense of rotation.

The first catch 50 has a first straight section 82 and a second straight section 84 on. The first straight section 82 and the second straight section 84 are over a bend 86 of the hook 50 connected with each other. The first straight section 82 of the hook 50 goes seamlessly into the second straight section 74 of the first thigh 44 over and / or is integrally formed with this. The first leg 44 ends in the first hook 50 , In particular, the first leg ends 44 in the second straight section 84 of the first hook 50 ,

The bending point 86 of the hook 50 has a constant bending radius, in the present case 0.625 times the radius of the wire 10 equivalent. In the present case, the bending radius is 1.25 mm. Furthermore, in the present case describes the bending point 86 of the hook 50 a bend of 150 °.

The second leg 46 has a second hook 52 on. The second hook 52 is in frontal view mirror-symmetrical to the first hook 50 formed, in particular with respect to the longitudinal axis 64 of the connecting element 12 , The first catch 50 and the second hook 52 are in the frontal view congruent to each other. In this case, the first hook 50 and the second hook 52 at least substantially identical to each other.

In the frontal view, the connection area tapers 26 along the longitudinal axis 64 of the connecting element 12 on the hook 50 to. The connecting section 78 limits the connection area 26 to the bottom 68 of the connecting element 12 out. The hook 50 and the second hook 52 limit the connection area 26 to the top 80 of the connecting element 12 out. The thigh 44 and the second leg 46 together surround the connection area 26 completely.

The connecting element 12 has an insertion gap 54 up to the connection area 26 leads. The insertion gap 54 is between the hooks 50 . 52 educated. The hooks 50 . 52 define the insertion gap 54 , In the present case, the hooks 50 , 52 arranged at a constant distance from each other. Furthermore, the hooks run 50 , 52 parallel to one another, in particular in a view in the main extension plane of the connecting element 12 ,

The insertion gap 54 has a width that is smaller than a diameter of the wire 10 and / or as a diameter of objects to be joined 28 . 30 such as in particular wires, strands, wire bundles or other longitudinal elements to be connected wire mesh 14 . 16 , In the present case, the insertion gap 54 a width of about 1.1 mm. objects 28 . 30 are through the insertion gap 54 through into the connection area 26 insertable. The hooks 50 . 52 can be temporarily pushed apart, for example by a piece of wire to be inserted through the insertion gap 54 is pressed.

The 3 shows a test device 88 to perform a bending test. By means of the test device 88 can be a bending test for the wire 10 be performed. Preferably, the bending test is with a test piece 18 of the wire 10 carried out. The test piece 18 is taken, for example, a wire supply, which leads to a production of the connecting element 12 also the wire 10 is taken. In particular, the test piece 18 first a straight piece of wire. The test piece 18 is at least partially identical to the wire 10 formed in its non-bent state.

The test device 88 has at least one bending cylinder 20 on which the test piece 18 of the wire 10 is bendable in the bending test. In the present case, the test device 88 at least a second bending cylinder 22 on. The bending cylinder 20 and the second bending cylinder 22 are at least substantially identical to each other. The bending cylinder 20 and the second bending cylinder 22 are arranged opposite each other. The test device 88 has clamping jaws 90 . 92 on, leading to a clamping of the test piece 18 of the wire 10 are provided. The test device 88 has a bending lever 94 on, which is mounted to swing back and forth. The bending lever 94 has takers 96 . 98 for the test piece 18 10 wire.

In the bending test is the test piece 18 of the wire 10 arranged between the bending cylinders 20, 22. Further, in the bending test, the test piece becomes 18 of the wire 10 alternately around the bending cylinder 20 and the second bending cylinder 22 bent, for example, in each case by at least 90 °, advantageously in each case by at least 120 ° and particularly advantageously in each case by at least 150 °.

The test piece 18 of the wire 10 has in the present case a length of about 100 mm. Advantageously, a test piece length of about 75 mm is selected for a wire diameter of 2 mm. Advantageously, a test piece length of about 85 mm is selected for a wire diameter of 3 mm. Advantageously, a test piece length of about 100 mm is selected for a wire diameter of 4 mm. Advantageously, a test piece length of about 115 mm is selected for a wire diameter of 5 mm.

The 4 shows a schematic flow diagram of a method for identifying a suitable wire 10 for producing a connecting element 12 , By means of the method is a wire 10 identifiable, which is suitable for the production of the connecting element 12 and / or for a break-free bending to the same. A suitable wire is advantageous 10 made of a high-strength steel. In addition, has a suitable wire 10 preferably a tensile strength of at least 800 N / mm ² and more preferably of at least 1500 N / mm ² . Depending on the application has a suitable wire 10 In addition, a certain diameter, for example, a diameter of 4 mm. Likewise, a suitable wire 10 , as above mentioned, have a diameter of less than 4 mm or more than 4 mm, in particular depending on a desired load capacity of a suitable wire 10 to be manufactured connecting element 12 ,

In the process, the wire becomes 10 identified as suitable if a test piece 18 of the wire 10 at least one bending test about at least one bending cylinder 20 . 22 whose diameter is smaller than a diameter and in particular as a radius of the wire 10 , at least once by more than 90 ° fracture can be bent.

In the present case, the bending test by means of the test device 88 carried out (cf. 3 ). Preferably, the wire 10 identified as suitable when this is around the bending cylinder 20 . 22 can be bent at least twice and advantageously at least five times each at least 150 ° without breakage.

In at least one process step 100 becomes the test piece 18 of the wire 10 taken. In at least one further method step 102 is the bending test, in the present case by means of the test device 88 , with the test piece 18 of the wire 10 carried out.

Withstood the test piece 18 of the wire 10 the bending test is fracture-free, the wire becomes 10 in an additional process step 104 identified as suitable. Breaks the test piece 18 of the wire 10 in the bending test, the wire becomes 10 identified as unsuitable. In principle, it is conceivable that several test pieces 18 of the wire 10 be examined, in particular with different bending parameters such as bending angle, bending frequency, bending radius and the like.

In the present case, the wire 10 additionally identified as suitable only if it additionally has a corrosion protection coating 24 having a mass of more than 110 g / m ² , advantageously of at least 130 g / m ² and particularly advantageously of at least 150 g / m ² .

The 5 shows a bending device 106 for producing the connecting element 12 in a schematic representation. The bending device 106 is intended to the connecting element 12 by bending it out of the wire 10 manufacture. The bending device 106 is intended for bending high-tensile steel wires.

The bending device 106 has a bending mandrel 108 on. In the present case corresponds to a radius of the bending mandrel 108 at least substantially the bending radius of the connecting portion 78 ,

The bending device 106 has a wire feeder 110 on that before bending the wire 10 the same to the bending mandrel 108 feeds laterally. In the present case, the wire feed leads 110 the bending mandrel 108 the wire 10 perpendicular to a longitudinal axis of the mandrel 108 to, as mentioned above, also an oblique feeding is conceivable. After feeding the wire 10 this is cut to length in a suitable manner.

The bending device 106 has two bending requirements 112 . 114 on which the wire is 10 to an embodiment of the straight sections 70, 72, 74, 76 of the legs 44 . 46 as well as the hook 50 . 52 is bent. In the present case, the bending requirements 112 . 114 and the bending mandrel 108 to a shooting in of the wire 10 and / or to eject the finished connector 12 movably mounted parallel to the longitudinal axis of the bending mandrel 108.

The bending requirements 112 . 114 each have a front end portion 116 . 118 on, which has a bending radius for the hooks 50 . 52 provides. To a production of hooks 50 . 52 becomes the wire 10 around the front end areas 116 . 118 the bending requirements 112 . 114 bent. A geometry of the bending supports 112 . 114 is a section of a geometry of the connection area 26 modeled.

The bending device 106 also has a plurality of movably mounted bending elements 120 -130 as well as holding elements 132 . 134 on that the wire 10 around the bending mandrel 108 and / or the bending supports 112 . 114 to bend. The bending elements 120 - 130 For this purpose, in each case slidably mounted about their longitudinal axes. The bending elements push to bend 120 - 130 against the wire 10 , In the present case, the bending elements 120 - 130 designed as a plunger. In principle, however, also, for example, rotating and / or on curved paths movable bending elements are conceivable.

The 6 shows a schematic flow diagram of a method for producing the connecting element 12 , In the method, at least a part of the connecting element 12 out of the wire 10 made by bending so that the wire 10 the connection area 26 at least partially defined. In addition, the connection area becomes 26 in an unconnected state of the connecting element 12 , in particular outside wire meshes 14, 16, finished. Advantageously, the connecting element 12 from a wire identified as suitable 10 produced.

In the manufacture of the connecting element 12 will at least be a bender 38 . 40 , 42 of the wire 10 by means of at least one overbending of the wire 10 produced. In the present case corresponds to a first bend produced by overbending 38 the connecting section 78 the thigh 44 . 46 , Furthermore, a second bending point produced by bending over 40 the bending point 86 of the first hook 50 , In addition, a third bend created by over bending corresponds 42 a bend of the second hook 52 ,

In the present case, the entire connecting element 12 out of the wire 10 manufactured. In addition, the connecting element 12 merely by cutting and bending the wire 10 manufactured. In addition, in the present case, the connecting element 12 by means of the bending device 106 manufactured (see. 5 ). The following is partly on the 5 Referenced.

In a first process step 119 becomes the wire 10 the bending mandrel 108 fed and cut to length.

In a second process step 32 will at least be a bender 40 of the wire 10 bent, whose bending radius is smaller than a diameter and in particular as a radius of the wire 10 is. Preferably, the wire 10 bent by a bending radius of 0.625 times the radius of the wire 10 equivalent. In the present case, the first bend 40 by bending around the end area 116 a first bending pad 112 the bending requirements 112 . 114 bent.

In a similar way, the second bending point 42 in a third process step 34 manufactured. The second process step 32 and the third process step 34 are advantageously carried out at least partially simultaneously.

In the second process step 32 and in the third process step 34 become the thighs 44 . 46 each with one of the hooks 50 . 52 Mistake.

In a fourth process step 36 be at least two legs 44 . 46 of the connecting element 12 by means of at least one bending, in particular by means of at least one overbending, of the wire 10 around at least one bending mandrel 108 made in such a way that the legs 44 . 46 offset from each other and / or at least partially bent past each other. In the present case, the legs 44 . 46 by means of the bending elements 120 - 130 around the bending mandrel 108 bent and pushed past each other. The thigh 44 . 46 are slightly inclined with respect to the longitudinal axis of the mandrel 108 pressed so that they can move past each other.

In the fourth process step 36 become the thighs 44 . 46 so overbend each other over, that at least after a springback of the legs 44,46 the hook 50 . 52 the insertion gap 54 to the connection area 26 define. Preferably, the hooks come 50 . 52 after springing congruent next to each other to lie, in particular at a constant distance.

The 7 shows a mesh installation 56 in a schematic representation. The braid installation 56 For example, it may be a security fence, a safety fence, a rockfall protection net, a fence, a fish farming net, a predator protection net, a fencing fence, a tunnel safety, a hillside protection, a motor sport safety fence, a road fence, an avalanche safety device or the like.

The braid installation 56 includes at least a first wire mesh 14 and at least one associated with this second wire mesh 16 , Of course, the braid installation 56 a variety of interconnected wire mesh 14 . 16 include.

The first wire mesh 14 and the second wire mesh 16 are with at least one connecting element 12 connected with each other. In the present case, the wire mesh 14 . 16 along its edges with a plurality of connecting elements 12, 136, 138 connected. In the present case, connection elements of the wire meshes 14, 16 are formed identically to one another 12 . 136 . 138 used, but also a use of different fasteners is conceivable, which may differ, for example, in terms of size, generally a geometry, a wire diameter, a bending angle of hooks or the like.

In the connecting element 12 are objects 28 . 30 introduced, in the present case wire sections of the wire mesh 14 . 16 , A first object 28 the objects 30 is in the present case a part, in particular a limiting wire section, a marginal mesh 140 of the first wire mesh 14 , In addition, in the present case, a second object 30 the objects 28 . 30 a part, in particular a limiting wire section, a marginal mesh 142 of the second wire mesh 16 , Of course, not marginal meshes can be connected, for example, if an overlap between the wire mesh 14 . 16 should be generated. The connecting element 12 connects the marginal mesh 140 of the first wire mesh 14 with the marginal mesh 142 of the second wire mesh 16 , By means of the connecting elements 12 . 136 . 138 can several Wire mesh 14 . 16 be combined into a common network.

As mentioned above, it is conceivable that at least one load capacity parameter of the connecting element 12 is greater than a corresponding load capacity parameter of the first wire mesh 14 and / or the second wire mesh 16 , For example, the load capacity parameter may be a breaking force. In the present case, for example, the diameter of the wire 10 larger than a wire diameter of the first wire mesh 14 and the second wire mesh 16 , Alternatively or in addition to a different diameter, a tensile strength, a type of steel, a material condition or the like between the connecting element could also be used 12 and the wire mesh 14 . 16 be chosen varying. In a load case, such as a rockfall holds a connection between the wire mesh 14, 16 therefore a greater burden than the wire mesh 14 . 16 itself, so that damage advantageously first in the first wire mesh 14 and / or in the second wire mesh 16 occurs.

It is also conceivable that at least one load capacity parameter of the connecting element 12 smaller than a corresponding load capacity parameter of the first wire mesh 14 and / or the second wire mesh 16 , For example, selectively a predetermined breaking point in a region of a connection between the wire mesh 14 . 16 be educated.

The 8th shows a schematic flow diagram of a method for producing the mesh installation 56 , The following is also partly on the 1 . 2 and 7 Referenced. For the production of the mesh installation 56 becomes a part of the first wire mesh 14 , in particular the first object 28 , and a part of the second wire mesh 16 , in particular the second object 30 , in the connection area 26 introduced. In the present case, an insertion of both objects takes place 28 . 30 through the insertion gap 54 through, in particular successively.

In at least one process step 144 becomes the part of the first wire mesh 14 in the connection area 26 introduced. For this purpose, for example, the connecting element 12 over the part of the first wire mesh 14 pushed. In an analogous way, the part of the second wire mesh 16 in the connection area 26 introduced.

In the process step 144 becomes at least the part of the first wire mesh 16 when inserted between two, in particular the legs 44 . 46 comprehensive, sections 60 . 62 of the curved wire 10 of the connecting element 12 , especially between the hooks 50 . 52 passing through one of the sections 60 . 62 applied force in the connection area 26 pressed and / or pulled. When inserting the hooks 50 . 52 pushed apart. The force is in particular from the connecting portion 78 the thigh 44 . 46 due to its associated with the introduction associated twisting and / or bending applied. In an analogous way, the part of the second wire mesh 16 introduced against an applied force.

In at least one further method step 58 becomes the first wire mesh 14 against a threading and / or slipping out of the connection area 26 secured. The connecting element 12 is rotated after insertion by about 90 °, so that its main extension plane at least temporarily perpendicular to a main extension plane of the first wire mesh 14 or at least the marginal mesh 140 of the first wire mesh 14 is arranged. In the present case, the hooks secure 50 . 52 after insertion, the first wire mesh 14 against unthreading and / or slipping out. In the case of a movement of the connecting element 12 relative to the first wire mesh 14 , especially in a load case in which this is loaded on train, thread the hooks 50 . 52 around the first object 28 around in such a way that the first object 28 against the bends 86 . 42 the hook 50 . 52 is pressed. Due to the tight bending radius of the bending points 86 . 42 in this case becomes the connecting element 12 under certain circumstances rotated again such that its main extension plane at least substantially perpendicular to the main extension plane of the first wire mesh 14 or at least the marginal mesh 140 of the first wire mesh 14 is arranged. A longitudinal axis of the first object 28 in this case runs at least substantially perpendicular to the main extension plane of the connecting element 12 so that in particular the hook 50 . 52 around the longitudinal axis of the first object 28 to bend around. A backup is advantageously carried out here also due to the smaller compared to a wire diameter of the first wire mesh width of the insertion gap 54 , In an analogous manner, the second wire mesh 16 , in particular the second object 30 , secured against unthreading and / or slipping out.

For the introduction of further connecting elements 136 . 138 the method steps 144, 58 are repeated accordingly for the further connecting elements 136 . 138 carried out.

The 9 shows another braid installation 56 ' in a schematic representation. The following description is essentially limited to the differences from the embodiments of FIGS 1 to 8th , with respect to the same components, features and functions can be made to the description of these figures. For distinction, the reference numerals in the embodiment of 9 marked with an apostrophe.

The braid installation 56 ' includes at least a first wire mesh 14 ' and at least one associated with this second wire mesh 16 ' , Of course, the braid installation 56 ' a variety of interconnected wire mesh 14 ' , 16 'include.

The first wire mesh 14 ' and the second wire mesh 16 ' are with at least one connecting element 12 ' connected with each other. In the present case, the wire mesh 14 ' . 16 ' along its edges with a plurality of fasteners 12 ' . 136 ' . 138 ' . 146 ' . 148 ' . 150 ' connected. In the present case are used to connect the wire mesh 14 . 16 identical to each other formed connecting elements 12 ' . 136 ' . 138 ' . 146 ' . 148 ' . 150 ' used, but also a use of different fasteners is conceivable, which may differ, for example, in terms of size, generally a geometry, a wire diameter, a bending angle of hooks or the like.

Mats to be connected 140 ' . 142 ' the wire mesh 14 ' . 16 ' are in this case each with multiple fasteners 12 ' . 136 ' . 138 ' . 146 ' . 148 ' . 150 ' connected. In the present case, the mesh installation points 56 ' for example, two connecting elements 12 ' . 136 ' . 138 ' . 146 ' . 148 ' . 150 ' two each to be connected stitches 140 ', 142' on. It is also conceivable that different numbers of fasteners 12 ' . 136 ' . 138 ' . 146 ' . 148 ' . 150 ' for different stitches to be joined 140 ' . 142 ' be used. For example, it is conceivable that in edge regions and / or in areas with higher expected load more than one connecting element 12 ' . 136 ' . 138 ' . 146 ' . 148 ' . 150 ' each stitch to be connected 140 ' . 142 ' is used. In addition, it is conceivable that some particular adjacent mesh of the wire mesh 14 ' . 16 ' not connected by means of a connecting element. Basically, the fasteners 12 ' . 136 ' . 138 ' . 146 ' . 148 ' . 150 ' be arranged in the same direction or in opposite directions. Advantageously, some two adjacent stitches 140 ' . 142 ' connecting fasteners 12 ' . 136 ' . 138 ' . 146 ' '148', 150 'in a first direction and others of these stitches 140 ' . 142 ' connecting fasteners 12 ' . 136 ' . 138 ' . 146 ' . 148 ' . 150 ' be oriented in a direction opposite thereto.

It is conceivable that a single connecting element 12 ' . 136 ' . 138 ' . 146 ' . 148 ' , 150 'has a lower load capacity than the first wire mesh 14 ' and / or as the second wire mesh 16 ' , wherein advantageously several, for example two, connecting elements 12 ' . 136 ' . 138 ' . 146 ' . 148 ' . 150 ' together have a higher load capacity than the first wire mesh 14 ' and / or as the second wire mesh 16 ' , A use of multiple fasteners 12 ' . 136 ' . 138 ' . 146 ' , 148 ', 150' is for example in the case of stronger wire mesh 14 ' . 16 ' conceivable, for example, of individual wires with a diameter of more than 5 mm or more than 6 mm and / or in the case of individual wires of a high-strength steel or also in the case of strand braids.

Claims (18)

Method for identifying a suitable wire (10), in particular from a high-strength steel, preferably with a tensile strength of at least 1500 N / mm ² and / or preferably with a diameter of at least 3 mm, for producing a connecting element (12) for wire mesh (14 , 16) or the like, characterized in that the wire (10) is identified as suitable if a test piece (18) of the wire (10) at least one bending test around at least one bending cylinder (20, 22) whose diameter is smaller than a diameter and in particular as a radius of the wire (10), at least once by more than 90 ° can be bent without breakage. Method according to Claim 1 , characterized in that the wire (10) is identified as suitable only if it additionally has a corrosion protection coating (24), in particular a zinc and / or a zinc-aluminum protective coating, with a mass of more than 110 g / m ² , advantageously of at least 130 g / m ² and particularly advantageously of at least 150 g / m ² . Method for producing a connecting element (12) for wire mesh (14, 16) or the like, having at least one connecting region (26) in which objects (28, 30) to be connected in a finished state of the connecting element (12), for example wires of two connecting wire mesh (14, 16) are insertable, wherein at least a part of the connecting element (12) of a, in particular according to a method according to one of the preceding claims as appropriately identified, wire (10), in particular of a high-strength steel, by bending such is made, that the wire (10) at least partially defines the connection region (26), wherein the connection region (26) is completed in an unconnected state of the connection element (12). Method according to Claim 3 , characterized in that in at least one method step (32, 34, 36) at least one bending point (38, 40, 42) of the wire (10) by means of at least one overbending of the wire (10) is produced. Method according to Claim 3 or 4 , Characterized in that in at least one step (32, 34) at least one bending point (40, 42) of the wire (10), in particular by at least one over bending is bent, the bending radius smaller than a diameter, and especially as a radius of the wire (10). Method according to one of Claims 3 to 5 , characterized in that in at least one method step (36) at least two legs (44, 46) of the connecting element (12) by at least one bending, in particular by means of at least one overbending, the wire (10) made around at least one bending mandrel (108) be that the legs (44, 46) offset from each other and / or at least partially bent past each other. Method according to Claim 6 , characterized in that in at least one method step (32, 34, 36) the legs (44, 46) are each provided with at least one hook (50, 52) and the legs (44, 46) are bent over one another in such a way that at least after a spring-back of the legs (44, 46), the hooks (50, 52) define at least one insertion gap (54) to the connecting region (26). Connecting element for wire mesh (14, 16) or the like, in particular produced in a method according to one of Claims 3 to 7 in that in at least one connecting region (26), in which objects (28, 30) to be connected in a finished state of the connecting element, for example wires of two wire meshes (14, 16) to be connected, are insertable, with at least one bent wire (10), in particular of a high-strength steel, which at least partially defines the connection region (26), and in a bending test about at least one bending cylinder (20, 22) whose diameter is smaller than a diameter and in particular as a radius of the wire (10), at least once bendable by more than 90 ° without breakage. Connecting element after Claim 8 , characterized in that the wire (10) at least in a mint condition, a corrosion protection coating (24), in particular a zinc and / or zinc-aluminum protective coating, having a mass of more than 110 g / m ² , advantageously of at least 130 g / m ² , particularly advantageously of at least 150 g / m ² . Connecting element after Claim 8 or 9 , characterized in that the wire (10) has a breaking force of at least 10 kN, advantageously of at least 20 kN, particularly advantageously of at least 30 kN. Connecting element according to one of Claims 8 to 10 , characterized in that the wire (10) has a diameter of more than 4 mm. Connecting element according to one of Claims 8 to 11 , characterized in that the wire (10) has a diameter of less than 4 mm. Braid installation with at least one first wire mesh (14) and with at least one second wire mesh (16), which by means of at least one connecting element (12) according to one of Claims 8 to 12 are connected. Wicker installation after Claim 13 , characterized in that at least one load capacity parameter of the connecting element (12) is greater than a corresponding load capacity parameter of the first wire mesh (14) and / or the second wire mesh (16). Wicker installation after Claim 13 or 14 , characterized in that at least one load capacity parameter of the connecting element (12) is smaller than a corresponding loadability parameter of the first wire mesh (14) and / or the second wire mesh (16). Method for producing a braided installation (56) according to one of Claims 13 to 15 wherein a part of the first wire mesh (14) and / or a part of the second wire mesh (16) in the finished state of the connection area (26) is inserted into the connection area (26). Method according to Claim 16 , characterized in that in at least one method step (58) the first wire mesh (14) and the second wire mesh (16) are secured against being unthreaded and / or slipping out of the connection region (26). Method according to Claim 16 or 17 , characterized in that in at least one method step (144) at least the part of the first wire mesh (14) and / or at least the part of the second wire mesh (16) when inserted between at least two subsections (60, 62) of the bent wire (10 ) of the connecting element (12) against one of the partial sections (60, 62) applied force in the connection region (26) is pressed and / or pulled.

Images