NET AND ROPE CONSTRUCTION WITH SAFETY NET
Patent Information
- Application Number
- DE502018016016
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2017-10-12
- Filing Date
- 2018-09-28
- Publication Date
- 2025-08-21
- Estimated Expiration
- 2038-09-28
AI Technical Summary
Existing safety nets for catching heavy loads, particularly dynamic impact bodies like rocks, lack sufficient safety and stability, often leading to damage and failure due to uneven force distribution and potential holes or gaps that allow further impacts.
A safety net design with a greater maximum total extension in the outer regions compared to inner regions, featuring interlocking net elements with additional buffer paths and optimized force distribution, including variations in shape, size, and material composition to enhance safety and stability.
The design increases the interception area and absorption capacity, preventing further impacts and reducing damage by distributing forces evenly, thus enhancing safety and stability during dynamic load encounters.
Description
State of the art
[0001] The invention relates to a net and rope construction with a safety net according to the preamble of claim 1.
[0002] In the documents JP H10-280332 A, EP 2 017 389 A2 and DE 203 00 821 U1, safety nets for catching rock have already been proposed, wherein the safety net is formed at least to a large extent from interlocking net elements.
[0003] The object of the invention is, in particular, to provide a generic safety net with increased safety. This object is achieved according to the invention by the features of patent claim 1, while advantageous embodiments and further developments of the invention can be found in the subclaims. Advantages of the invention
[0004] The invention is based on a safety net, in particular for catching heavy loads, preferably dynamic impact bodies, in particular rock, wherein the safety net is formed at least to a large extent from interlocking net elements.
[0005] It is proposed that a maximum total extension of the safety net parallel to the main extension direction of the safety net in an outer region of the safety net comprising at least one outermost row of net elements be substantially greater than a minimum total extension of the safety net parallel to the main extension direction in an inner region of the safety net different from the outer region. This advantageously enables increased safety, in particular with regard to the capture of dynamic impact bodies in the safety net. Advantageously, an interception area in which dynamic impact bodies can be safely intercepted can be enlarged, in particular by advantageously keeping the interception area large after an impact of the dynamic impact body.Advantageously, the formation of open spaces and / or holes as a result of an impact of a dynamic impactor, particularly in an area covered by the intercepting surface prior to the impact, can be prevented, thereby advantageously preventing a further dynamic impactor from falling through the safety net in the event of a subsequent impact. According to the invention, an additional buffer path can be created by means of additional net elements that provide deflection in the event of a load on at least one outer edge on which the safety net is suspended, thereby advantageously better cushioning an impact.In addition, particularly through an additional buffer path, an impact from a dynamic impactor near an edge of the safety net can be better absorbed, particularly while reducing potential damage to the suspension of the safety net. Furthermore, the net and rope construction according to the invention with a safety net in the assembled state advantageously enables easy guidance of the net elements around a support element carrying the safety net.Furthermore, stability can be advantageously improved, in particular by advantageously distributing a force acting on the safety net across a large number of net elements, whereby, in particular, an advantageous, in particular uniform, force distribution can be achieved, whereby, in particular, at least one catching property, such as deformability, extensibility, resilience, breakthrough strength, etc., of the safety net for catching at least one dynamic impact body can be optimized. Furthermore, the net and rope construction according to the invention enables, in particular, simplified assembly, which advantageously reduces costs, material and / or assembly effort.
[0006] A "dynamic impact body" is to be understood in particular as a mass moving under the influence of a gravitational potential. In particular, the dynamic impact body comprises at least one rock, preferably rubble, and / or frozen water. Alternatively or additionally, the dynamic impact body can also comprise machines or machine parts, for example, of means of transport and / or construction machinery, and / or living beings or parts of living beings, for example, tree trunks and / or branches. In particular, a "heavy load" is heavier than 1 kg, preferably heavier than 10 kg, preferably heavier than 100 kg, and particularly preferably heavier than 1000 kg. A "net element" is to be understood in particular as a basic element of the safety net, in particular a separable one, which forms the safety net by interlocking with adjacent basic elements.According to the invention, the net element is designed as a self-contained, filament-like structure, in particular a wire structure. Preferably, the structure, in particular a wire structure, lies essentially in one plane in an unloaded state. Preferably, the filament-like structure, in particular the wire structure, preferably the wire of the wire structure, is a high-strength steel wire. For example, the high-strength steel can be spring steel and / or wire steel and / or a steel suitable for wire ropes. In particular, the wire has a tensile strength of at least 800 N mm -2< , advantageously of at least 1000 N mm -2< , particularly advantageously of at least 1200 N mm -2< , preferably of at least 1400 N mm -2< and particularly preferably of at least 1600 N mm -2< , in particular a tensile strength of approximately 1770 N mm -2< or a tensile strength of approximately 1960 N mm -2<.It is also conceivable for the wire to have 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< . This makes it possible to achieve high load-bearing capacity, in particular high tensile strength and / or high rigidity transverse to the mesh. In addition, advantageous bending properties can be achieved. The net element can in particular have an irregular shape or preferably a regular shape, which at least partially represents the shape of a circle, a rhombus and / or a uniform and / or irregular polygon. In particular, different net elements of the safety net can have different shapes, but preferably the net elements have an essentially identical shape. The net element is preferably designed as a ring, in particular a wire ring.In particular, the net element at least partially forms a network link of a ring net. A network link comprises, in particular, at least one bundle of net elements or preferably precisely one single net element. A bundle of net elements is to be understood, in particular, as a plurality of net elements intended to lie essentially concentrically one above the other in a safety net. The net elements preferably have a diameter of at least 3 cm, preferably at least 5 cm, and particularly preferably less than 40 cm. "To a large extent," particularly in this context, is to be understood as meaning at least 80%, preferably at least 90%, preferably at least 95%, and particularly preferably completely. A "total extent" is to be understood, in particular, as an extent between two opposite outermost edges of the safety net.A "main extension direction" of an object is understood in particular to mean a direction that runs parallel to the longest edge of the smallest geometric cuboid that just completely encloses the object. According to the invention, any type of extension is understood to be measured with a completely flat, flatly spread safety net, free of internal stresses. An "outermost row of net elements" is understood in particular to mean a row of net elements running along a straight line, which are free of adjacent net elements on at least one common side. The outer region extends in particular in a main extension direction of the safety net at least over the entire extent, in particular over a maximum total extent, of the safety net.The outer region preferably contains at least a plurality of, in particular complete, rows of net elements running along a straight line, preferably parallel to the main direction of extension, preferably at least two, in particular complete, rows of net elements running along a straight line, preferably parallel to the main direction of extension, and particularly preferably at least one, in particular complete, row of net elements running along a straight line, preferably parallel to the main direction of extension. The outer region preferably comprises at least one outermost row of net elements. The inner region extends, in particular in a main direction of extension of the safety net, at least over an entire extent, in particular over a, in particular minimal, total extent of the safety net.The inner region preferably contains at least a plurality of, in particular complete, rows of mesh elements extending along a straight line, preferably parallel to the main direction of extension, preferably at least two, in particular complete, rows of mesh elements extending along a straight line, preferably parallel to the main direction of extension, and particularly preferably at least one, in particular complete, row of mesh elements extending along a straight line, preferably parallel to the main direction of extension. In particular, the outer region and the inner region are non-overlapping.
[0007] It is further proposed that the maximum total extension of the safety net parallel to a main extension direction of the safety net in the outer region be at least one, preferably at least two, more preferably at least three average diameters of the net elements and / or by at least 5%, preferably by at least 10%, preferably by at least 15%, and particularly preferably by at least 20% greater than the minimum total extension of the safety net parallel to the main extension direction in the inner region different from the outer region. In particular, such a construction of the safety net can advantageously enable increased safety, in particular with regard to catching dynamic impact bodies in the safety net.Advantageously, an interception area in which dynamic impact bodies can be safely intercepted can be increased, in particular by advantageously keeping the interception area large after an impact of the dynamic impact body. According to the invention, an additional buffer path can be created by means of additional net elements that provide travel in the event of a load on at least one outer edge on which net elements are suspended, thereby advantageously better cushioning an impact. A "mean diameter" is to be understood in particular as an average diameter of net elements viewed in a substantially planar propagation direction of the safety net. To calculate the mean diameter, a plurality of randomly determined, preferably all, net elements of the safety net are used.The diameter of an individual net element is preferably calculated from the average value of a diameter parallel to the main extension direction of the safety net and / or a diameter perpendicular to the main extension direction of the safety net. A "diameter" of a net element is preferably understood to be the diameter of the smallest circle that completely encompasses the net element, particularly in a main extension plane of the safety net. In particular, the shape of an extended safety net deviates from a rectangular shape at at least one corner.
[0008] Furthermore, it is proposed that a maximum total extension of the safety net parallel to the main extension direction of the safety net in a further outer region of the safety net that is different from the outer region and in particular comprises at least one further outermost row of net elements that is in particular different from the outermost row of net elements, is greater than a minimum total extension of the safety net parallel to the main extension direction in an inner region of the safety net that is different from the outer region and the further outer region. In particular, such a construction of the safety net can advantageously enable increased safety, in particular with regard to catching dynamic impact bodies in the safety net. Advantageously, an interception area in which dynamic impact bodies can be safely intercepted can be enlarged.According to the invention, an additional buffer path can be created by means of additional net elements that provide travel in the event of a load on at least one outer edge on which net elements are suspended, thereby advantageously allowing an impact to be better cushioned, in particular by advantageously keeping the absorption area large after an impact of the dynamic impact body. The further outer region extends, in particular in a main extension direction of the safety net, at least over the entire extent, in particular over a maximum total extent, of the safety net.The further outer region preferably contains at least a plurality, in particular complete, rows of mesh elements running along a straight line, preferably parallel to the main direction of extension, preferably at least two, in particular complete, rows of mesh elements running along a straight line, preferably parallel to the main direction of extension, and particularly preferably at least one, in particular complete, row of mesh elements running along a straight line, preferably parallel to the main direction of extension. The further outer region preferably comprises at least one outermost row of mesh elements. The outer region, the further outer region, and / or the inner region preferably do not overlap with one another.
[0009] The further outer region preferably comprises a further outer edge of the safety net that is opposite an outer edge included in the outer region in a direction perpendicular to the main direction of extension of the safety net. In particular, the shape of the unfolded safety net deviates from a rectangular shape at at least two corners. The main direction of extension of the outer region, the further outer region, and / or the inner region preferably extends in a plane parallel to the safety net, perpendicular and / or preferably parallel to the main direction of extension of the safety net. The outer region, the further outer region, and / or the inner region preferably comprises at least one, preferably at least two, side edge(s) of the safety net, in particular extending at least partially obliquely and / or at least partially perpendicular to the main direction of extension.
[0010] It is further proposed that the net elements be arranged mirror-symmetrically with respect to a mirror plane at least substantially perpendicular to a main extension plane of the safety net and / or with respect to a mirror plane at least substantially parallel to a main extension direction of the safety net. In particular, such a design of the safety net can advantageously enable increased safety, particularly with regard to catching dynamic impact bodies in the safety net. Advantageously, an interception area in which dynamic impact bodies can be safely intercepted can be enlarged, particularly by advantageously keeping the interception area large after an impact of the dynamic impact body.According to the invention, an additional buffer path can be created by means of additional net elements that provide travel in the event of a load on at least one outer edge on which net elements are suspended, thereby advantageously better cushioning an impact. In particular, the shape of the unfolded safety net deviates from a rectangular shape at at least four corners. A "main extension plane" of a structural unit is understood to mean, in particular, a plane that is parallel to a largest side surface of a smallest imaginary cuboid that just completely encloses the structural unit, and which in particular runs through the center of the cuboid.
[0011] It is further proposed that at least one partial region of the safety net projecting beyond the inner region, in particular beyond the entire extent of the inner region, in a direction parallel to a main direction of extension of the safety net, in particular an outer region of the safety net, has at least four, preferably at least six, more preferably at least nine, and particularly preferably at least twelve net elements. In particular, such a construction of the safety net can advantageously enable increased safety, in particular with regard to catching dynamic impact bodies in the safety net. Advantageously, an interception area in which dynamic impact bodies can be safely intercepted can be enlarged, in particular by advantageously keeping the interception area large after an impact of the dynamic impact body.The term "at least one partial area of the safety net that projects beyond the interior area in a direction parallel to a main extension direction of the safety net" is understood to mean, in particular, an exterior area. An "exterior area" of the safety net is understood to mean, in particular, at least a partial area of the safety net that forms an overlap over a maximally large, rectangular area of the safety net that is completely covered by the safety net. According to the invention, the exterior area comprises a plurality of net elements that project beyond the minimum overall extension of the safety net in a main extension direction.
[0012] It is also proposed that at least one partial region of the safety net, in particular an outer region of the safety net, projecting beyond the inner region, in particular beyond the entire extent of the inner region, in a direction parallel to a main extension direction of the safety net, has a number of net elements arranged next to one another in a row in the main extension direction of the safety net, which corresponds to at least one twentieth, preferably at least one fifteenth, preferably at least one tenth, and particularly preferably at least one fifth of a maximum number of all rows of net elements arranged next to one another perpendicular to the main extension direction of the safety net. In particular, such a construction of the safety net can advantageously enable increased safety, in particular with regard to catching dynamic impact bodies in the safety net.Advantageously, an interception area in which dynamic impact bodies can be safely intercepted can be enlarged, in particular by advantageously keeping the interception area large after an impact of the dynamic impact body.
[0013] In addition, it is proposed that at least one partial region of the safety net, in particular an outer region of the safety net, projecting in a direction parallel to a main extension direction of the safety net over the inner region, in particular over an entire extension of the inner region, has a number of net elements arranged side by side in a row perpendicular to the main extension direction of the safety net, which corresponds to at least one tenth, preferably at least one eighth, advantageously at least one sixth, preferably at least one quarter and particularly preferably at least one half of a maximum number of all rows of net elements arranged side by side perpendicular to the main extension direction of the safety net.In particular, such a design of the safety net can advantageously enable increased safety, particularly with regard to the capture of dynamic impact bodies in the safety net. Advantageously, an interception area in which dynamic impact bodies can be safely intercepted can be enlarged, in particular by advantageously keeping the interception area large after an impact of the dynamic impact body.Preferably, the number of net elements arranged side by side in a row perpendicular to the main direction of extension of the safety net in the partial area of the safety net projecting over the inner area, in particular over an entire extent of the inner area, in a direction parallel to a main direction of extension of the safety net corresponds to at least half the number, preferably at least the exact number and preferably at least twice the number of net elements arranged side by side in a row parallel to the main direction of extension of the safety net in the partial area.
[0014] It is further proposed that at least one partial region of the safety net, in particular an outer region of the safety net, projecting beyond the inner region, in particular beyond the entire extent of the inner region, in a direction parallel to a main extension direction of the safety net, has an at least substantially triangular arrangement of net elements. In particular, such a construction of the safety net can advantageously enable increased safety, in particular with regard to catching dynamic impact bodies in the safety net. Advantageously, an interception area in which dynamic impact bodies can be safely intercepted can be enlarged, in particular by advantageously keeping the interception area large after an impact of the dynamic impact body.Preferably, the triangular arrangement essentially has the shape of a triangle tapering to a point at an angle of less than 45° in the main extension direction of the safety net. Alternatively, the triangular shape can also be a substantially isosceles triangle and / or a triangle converging at an angle greater than 45° in the main extension direction of the safety net.
[0015] Furthermore, it is proposed that at least one net element of at least one partial region of the safety net, in particular of an outer region of the safety net, projecting in a direction parallel to a main extension direction of the safety net over the inner region, in particular over the entire extension of the inner region, has a circumference that deviates significantly from a mean circumference of net elements outside the partial region. This enables, in particular, an advantageous force distribution in the safety net in the event of a load, whereby in particular at least one catching property of the safety net for catching at least one dynamic impact body can be optimized. Furthermore, stability can advantageously be increased.A "circumference" of a net element is understood to mean, in particular, the total length, in particular of at least one turn, of the closed filament from which the net element consists. In the case of a ring, the circumference corresponds to the circumference of a circle. A "mean circumference" is understood to mean, in particular, an average of the circumferences, in particular the total lengths, in particular the turns, of the closed filaments from which the net elements consist, of a random selection of a plurality, preferably all, of the net elements of the safety net. A "significant deviation" in this context is understood to mean, in particular, that a circumference of at least one net element in the partial area deviates by at least 50%, preferably by at least 30%, more preferably by at least 20%, and particularly preferably by at least 10% from the average circumference of the net elements outside the partial area.In particular, all network elements of the sub-area can have a substantially identical deviation. Alternatively, the network elements of the sub-area can at least partially have a different deviation. Preferably, the network elements in the sub-area are at least partially at least 10% larger, preferably at least 20% larger, more preferably at least 30% larger, or particularly preferably at least 50% larger than the network elements outside the sub-area. Alternatively or additionally, the network elements in the sub-area can at least partially be at least 50% smaller, preferably at least 30% smaller, more preferably at least 20% smaller, or particularly preferably at least 10% smaller than the network elements outside the sub-area.
[0016] Furthermore, it is proposed that at least one net element of at least one partial area of the safety net, in particular of an outer area of the safety net, projecting in a direction parallel to a main extension direction of the safety net over the inner area, in particular over the entire extension of the inner area, exhibits a tensile strength in a test that deviates significantly from the average tensile strength of net elements outside the partial area. This allows for an advantageous force distribution in the safety net, particularly in the event of a load. Advantageously, the net's reaction to an impact, in particular an expected impact, can be optimized, thereby improving safety. "Tensile strength" is understood to mean, in particular, the maximum possible load on a net element before the net element breaks.Preferably, the maximum load prior to breakage is measurable in a test using a suitable test setup. In the test, an artificial load is applied to a test net element using the test setup. The test net element represents a net element identical to the net element arranged in the sub-area. In particular, the test net element originates from the same production batch as the net element, particularly to account for material quality fluctuations. An incremental increase in the load acting on the test net element causes deformation and / or breakage of the test net element at a certain force. The value of the minimum force required at breakage determines the tear strength. "Mean tear strength" is understood in particular to mean the average tear strength of a plurality of test net elements of an identical design and / or an identical production batch.In this context, a "significant deviation" is to be understood in particular as meaning that the tensile strength of at least one mesh element in the partial region deviates by at least 500%, preferably by at least 300%, advantageously by at least 150%, preferably by at least 50%, and particularly preferably by at least 10% from the average tensile strength of the mesh elements outside the partial region. In particular, all mesh elements of the partial region can have a substantially identical deviation. Alternatively, the tensile strengths of the mesh elements of the partial region can have at least partially different deviations.Preferably, the mesh elements in the partial region at least partially have a tear strength that is at least 10% greater, preferably at least 50% greater, advantageously at least 150% greater, preferably at least 300% greater, or particularly preferably at least 500% greater than an average tear strength of the mesh elements outside the partial region. Alternatively or additionally, the tear strength of the mesh elements in the partial region can at least partially be at least 500% smaller, preferably at least 300% smaller, advantageously at least 150% smaller, preferably at least 50% smaller, or particularly preferably at least 10% smaller than an average tear strength of the mesh elements outside the partial region.
[0017] It is also proposed that at least one net element, in particular at least one portion of the safety net projecting beyond the interior region in a direction parallel to a main extension direction of the safety net, has a predetermined breaking point. This advantageously enables targeted force control in the event of an impact. Furthermore, uncontrolled tearing of the safety net can advantageously be prevented. A predetermined breaking point can be designed, in particular, as a point with a thinner material thickness than the rest of the net element, as a pre-stressed point, for example, by manual back and forth bending, and / or as a point with a material composition that differs from the rest of the net element.
[0018] It is further proposed that at least one net element of at least one partial region of the safety net, in particular of an outer region of the safety net, projecting in a direction parallel to a main extension direction of the safety net over the inner region, in particular over the entire extension of the inner region, has at least one material composition that is significantly different from a material composition, in particular an average material composition, of the net elements outside the partial region. This makes it possible, in particular, to achieve an advantageous force distribution in the safety net in the event of a load, whereby in particular at least one catching property of the safety net for catching at least one dynamic impact body can be optimized. In addition, stability can advantageously be increased.By a material composition being "significantly different" from another material composition, it should be understood in particular that the network elements in the subregion have at least one material composition in which a mass fraction of an atomic and / or molecular main component deviates by at least 0.1 wt.%, preferably at least 0.5 wt.%, advantageously at least 1 wt.%, preferably at least 10 wt.%, or particularly preferably at least 99 wt.% from a mass fraction of the same molecule and / or atom in the, in particular average, material composition of the network elements outside the subregion. An "atomic and / or molecular main component" should be understood in particular as an element and / or molecule that was deliberately added to a material during production, in particular with the aim of influencing at least one material property.In particular, it is conceivable for a mesh element to consist of different components made of different materials. Advantageously, a mesh element, particularly in the partial area, could have a coating, for example, made of plastic. Furthermore, it is conceivable for at least one mesh element to comprise a plurality of wire strands. The wire strands can be formed from identical wires of the same material. Alternatively, the wire strands could be formed at least partially from different wires, particularly with different material compositions.
[0019] It is further proposed that at least one net element of at least one partial region of the safety net, in particular of an outer region of the safety net, projecting in a direction parallel to a main extension direction of the safety net over the inner region, in particular over the entire extension of the inner region, has at least one wire winding, in particular a wire strand winding, whose wire diameter is significantly larger than an average wire diameter of wire windings, in particular wire strand windings, of net elements outside the partial region. This makes it possible, in particular, to advantageously distribute forces in the safety net in the event of a load, whereby in particular at least one arresting property of the safety net for arresting at least one dynamic impact body can be optimized. In addition, stability can advantageously be increased.A "wire winding" is to be understood in particular as at least a portion of a filament, in particular a wire, which describes the circumference of a net element exactly once. A "wire strand winding" is to be understood in particular as at least a portion of a wire strand which describes the circumference of a net element exactly once. A "mean wire diameter" is to be understood in particular as an average of the wire diameters, in particular in a vertical cross-section through the wire, of a random selection of a plurality, preferably all, of the net element(s) of the safety net, in particular outside the partial area. The wire diameter is preferably a diameter of the smallest circle that can be placed around a cross-section of a filament, in particular a wire, and thereby completely encloses the filament, in particular the wire.An "average wire strand diameter" is understood to mean, in particular, an average of the wire strand diameters, particularly in a vertical cross-section through the wire strand, of a random selection of a plurality, preferably all, of the safety net elements, particularly outside the partial area. The wire strand diameter is preferably a diameter of the smallest circle that can be placed around a cross-section of a wire strand and thereby encloses all wire turns. "Significantly larger" in this context is understood to mean, in particular, that a diameter is at least 10%, preferably at least 20%, advantageously at least 30%, preferably at least 50%, and particularly preferably at least 100% larger.
[0020] It is further proposed that at least one net element of at least one partial region of the safety net, in particular of an outer region of the safety net, projecting in a direction parallel to a main direction of extension of the safety net over the inner region, in particular over the entire extent of the inner region, has at least a number of wire windings, in particular wire strand windings, which deviates significantly from an average number of wire windings, in particular wire strand windings, of net elements outside the partial region. This makes it possible, in particular, to advantageously distribute forces in the safety net in the event of a load, whereby in particular at least one arresting property of the safety net for arresting at least one dynamic impact body can be optimized. In addition, stability can advantageously be increased.An "average number of wire turns" is to be understood in particular as an average of the number of wire turns from a random selection of a plurality of, preferably all, network elements of the safety net, in particular outside the sub-area. An "average number of wire strand turns" is to be understood in particular as an average of the number of wire strand turns from a random selection of a plurality of, preferably all, network elements of the safety net, in particular outside the sub-area.In this context, a "significant deviation" should be understood in particular to mean that a number of wire turns, in particular wire strand turns, of at least one network element in the sub-region deviates by at least 200%, preferably at least 100%, more preferably at least 50%, and particularly preferably at least 10% from the average number of wire turns, in particular wire strand turns, outside the sub-region. In particular, all network elements of the sub-region can have a substantially identical deviation. Alternatively, the network elements of the sub-region can at least partially have a different deviation.Preferably, the number of wire turns, in particular wire strand turns, of the mesh elements in the partial region is at least partially at least 10% larger, preferably at least 50% larger, preferably at least 100% larger, or particularly preferably at least 200% larger than the number of wire turns, in particular wire strand turns, of the mesh elements outside the partial region. Alternatively or additionally, the number of wire turns, in particular wire strand turns, in the partial region can be at least partially at least 200% smaller, preferably at least 100% smaller, preferably at least 50% smaller, or particularly preferably at least 10% smaller than the number of wire turns, in particular wire strand turns, of the mesh elements outside the partial region.
[0021] Furthermore, it is proposed that at least one net element of at least one partial region of the safety net, in particular of an outer region of the safety net, projecting in a direction parallel to a main extension direction of the safety net over the inner region, in particular over the entire extension of the inner region, has at least one energy absorber. This enables, in particular, an advantageous force distribution within the safety net in the event of a load, whereby, in particular, at least one catching property of the safety net for catching at least one dynamic impact body can be optimized. Furthermore, stability can advantageously be increased.An "energy absorber" is understood, in particular, to be an element designed to convert at least part of the kinetic energy of a dynamic impactor, particularly upon impact of the dynamic impactor into the safety net, into at least one form of energy different from the kinetic energy, for example, potential energy and / or thermal energy, in particular deformation energy and / or internal friction. An energy absorber, which may in particular comprise at least one torsion spring, can be arranged, in particular, between at least two net elements and / or between at least one net element and at least one suspension, for example, a cable.
[0022] Furthermore, it is proposed that the energy absorber be formed integrally with the at least one net element. This advantageously enables a simple construction, in particular of the energy absorber. Furthermore, simple assembly and / or integration of the energy absorber into the safety net can advantageously be enabled. In particular, the energy absorber can be designed as an at least partially corrugated and / or bulged net element, which is intended to expand, in particular under load. Alternatively, it is conceivable that at least part of a net element is bent in the form of a torsion spring and / or is replaced by a torsion spring.
[0023] It is further proposed that at least one net element, in particular a net element in at least one partial region of the safety net, preferably an outer region of the safety net, projecting in a direction parallel to a main direction of extension of the safety net over the inner region, in particular over an entire extension of the inner region, forms exactly three connection regions to adjacent net elements. This makes it possible, in particular, to have an advantageous design of the safety net, whereby safety can be advantageously increased, in particular with regard to catching dynamic impact bodies in the safety net. Advantageously, by means of the advantageous design, an interception area in which dynamic impact bodies can be safely intercepted can be enlarged, in particular by keeping the interception area advantageously large after an impact of the dynamic impact body.A "connection area" is understood to mean, in particular, an area of a network element and / or a network link, in particular a bundle of network elements arranged essentially concentrically one above the other in a safety net, in which the network element and / or the network link, in particular the bundle of network elements, in particular in a fully assembled safety net, overlaps with at least one adjacent network element and / or at least one adjacent network link and / or at least one bundle of network elements. The network element and / or the adjacent network element can be designed, in particular, as a single network element and / or as a network link, in particular as a bundle of network elements. Preferably, in the connection area, the network element and / or the network link, in particular the bundle of network elements, overlaps with exactly one network element and / or with exactly one network link, in particular exactly one bundle of network elements.Preferably, at least two of the connection regions are arranged diametrically opposite one another relative to the net element, particularly in an extended state of the safety net. In particular, the connection regions each have a center of gravity. The centers of gravity of the connection regions are arranged at an angle greater than 30°, preferably greater than 45°, advantageously greater than 60°, preferably greater than 75°, and particularly preferably greater than 85° to one another, viewed from a center point of the net element having exactly three connection regions, particularly in an extended state of the safety net. In particular, each connection region of a net element is designed to be non-overlapping with any other connection region of the net element.Preferably, particularly in a fully expanded state of the safety net, at least one additional network element of the safety net adjacent to the network element with exactly three connection areas has exactly three connection areas. Preferably, particularly in a fully expanded state of the safety net, at least two additional network elements of the safety net adjacent to the network element with exactly three connection areas have exactly three connection areas.
[0024] Furthermore, the net and rope structure according to the invention is proposed with at least one safety net. This advantageously allows a high degree of safety and / or advantageous behavior in the event of an impact to be achieved. The net and rope structure is preferably a wire net and wire rope structure. The net and rope structure can be, for example, a rockfall protection installation, a motorsport fence, a safety fence, a road and / or rail safety net, an avalanche net, a bullet safety fence, a vehicle safety fence, in particular an aircraft safety fence installation, a test track safety net, or the like.
[0025] The net and rope construction advantageously has at least one guide rope, which is guided through at least every third, preferably every second, preferably every net element of a row of net elements running parallel to a main extension direction of the safety net on at least one outer edge of the safety net. The guide rope advantageously defines a degree of freedom of movement of the net elements. This allows, particularly in the event of an impact, advantageous damping of the impact, in particular through a directed displacement of at least some of the net elements of the safety net. The guide rope is in particular designed as a wire rope. The guide rope is in particular connected to at least one support, preferably at least two supports, of the net and rope construction. In particular, the support is intended to hold and / or suspend the safety net.Preferably, the support can be attached on at least one side to a subsurface and / or a wall, preferably a rock face. Particularly preferably, a main extension of the support, when attached to the subsurface and / or the wall, preferably a rock face, extends, in particular from an attachment point, substantially perpendicular to a direction of gravity. The phrase "at least every third" is intended to mean, in particular, that in the row of adjacent net elements, in particular at the outer edge of the safety net, each net element that is free of a guide cable passage has at most one adjacent net element in the row that is also free of a guide cable passage. In particular, the row of net elements is free of three consecutive adjacent net elements that are free of a guide cable passage.The phrase "at least every second" is to be understood in particular to mean that in the row of adjacent net elements, in particular at the outer edge of the safety net, each net element that is free of a guide cable passage has exclusively adjacent net elements of the row through which the guide cable is passed. In particular, the row of net elements is free of two consecutive adjacent net elements that are free of a guide cable passage. The outer edge of the safety net is formed in particular by one side of the outermost row of net elements that is free of adjacent net elements. Preferably, the net and cable construction has at least one guide cable on at least two mutually different outer edges.
[0026] It is also proposed that the guide cable be designed as at least one supporting cable, which is intended in particular to support the safety net and / or, in the event of a load, in particular due to debris and / or at least one other dynamic impact body, to absorb at least a substantial part of the load and / or, preferably, to transfer it to at least one support. This advantageously enables a simple construction, in particular by dispensing with additional guide cables, running cables and / or further additional suspensions. This advantageously allows costs, in particular assembly and / or material costs, to be saved. Preferably, the supporting cable is designed as a wire rope. It is also conceivable for the supporting cable to be designed as a cable bundle consisting of at least two supporting cables, whereby safety and / or stability can advantageously be further improved.
[0027] The safety net can advantageously be used as a fall arrest net in the net and rope construction according to the invention. The net and rope construction preferably comprises a plurality of safety nets, which are connected to one another in particular via ropes, preferably support ropes, and / or via shackles.
[0028] The net and rope construction according to the invention is not intended to be limited to the application and embodiment described above. In particular, the net and rope construction according to the invention may comprise a number of individual elements, components, and units that differs from the number stated herein to fulfill a function described herein. Drawings
[0029] Further advantages will become apparent from the following description of the drawings. The drawings illustrate exemplary embodiments of the invention. The drawings, the description, and the claims contain numerous features in combination. Those skilled in the art will expediently consider the features individually and combine them into further meaningful combinations. Furthermore, for the value ranges specified in this disclosure, values within the stated limits are also to be considered disclosed and can be used arbitrarily.
[0030] They show: Fig. 1 is a schematic plan view of a safety net, Fig. 2 is a schematic plan view of an alternative safety net, Fig. 3 is a schematic plan view of a further alternative safety net which is not part of the net and rope construction according to the invention, Fig. 4 is a schematic sectional view through net elements of a part of the safety net, Fig. 5 is a schematic plan view of a part of a net and rope construction according to the invention with the safety net, Fig. 6 is a schematic view of parts of net elements with a predetermined breaking point, Fig. 7 is a schematic view of alternative net elements with energy absorbers, Fig. 8 is a schematic sectional view through net elements of a part of an alternative safety net, Fig. 9 is a schematic sectional view through net elements of a part of a further alternative safety net, Fig.Fig. 10 is a schematic sectional view through net elements of a part of an additional, further alternative safety net, and Fig. 11 is a schematic plan view of a second, additional, further alternative safety net. Description of the embodiments
[0031] Fig. 1shows a safety net. The safety net is spread out along a main extension plane 28a. The safety net serves to catch heavy loads. The safety net is formed from net elements 10a. The net elements 10a are designed as rings 102a. The net elements 10a are essentially identical. The net elements 10a have a net element diameter of 88a. The net elements 10a engage with adjacent net elements 10a. Two interlocking net elements 10a form a connection region 56a, 58a, 60a. At least one net element 10a of the safety net forms exactly three connection regions 56a, 58a, 60a to adjacent net elements 10a. The net elements 10a form adjacent rows of net elements 10a perpendicular to a main extension direction 14a of the safety net. The network elements 10a of a row do not overlap with each other.Mesh elements 10a of one row overlap with mesh elements 10a of adjacent rows. Mesh elements 10a of one row engage with mesh elements 10a of adjacent rows. It is conceivable that at least one mesh element 10a has a predetermined breaking point 40a (cf. ). Fig. 6 ).
[0032] The safety net has an outer region 18a. The outer region 18a comprises an outermost row 16a of net elements 10a. The outer region 18a comprises two rows of net elements 10a. The outer region 18a extends over all net elements 10a of an outermost row 16a of net elements 10a. The outer region 18a extends over all net elements 10a of a further row 90a of net elements 10a that is different from the outermost row 16a. The safety net has a maximum total extension 94a. The maximum total extension 94a runs parallel to the main extension direction 14a of the safety net. The safety net has a maximum total extension 12a lying within the outer region 18a. The maximum total extension 12a lying within the outer region 18a and the maximum total extension 94a of the safety net are identical to one another.
[0033] The safety net has a further outer region 26a. The further outer region 26a is designed differently from the outer region 18a. The further outer region 26a and the outer region 18a do not overlap with each other. The further outer region 26a extends over all net elements 10a of a further outermost row 96a of net elements 10a. The further outer region 26a extends over all net elements 10a of an additional row 98a of net elements 10a, different from the further outermost row 96a. The safety net has a maximum total extension 70a lying within the further outer region 26a. The maximum total extension 70a lying within the further outer region 26a and the maximum total extension 94a of the safety net are identical to each other.
[0034] The safety net has an inner region 22a. The inner region 22a overlaps without overlap with the outer region 18a and the further outer region 26a. The inner region 22a comprises an inner row 92a of net elements 10a. The inner region 22a comprises another inner row 118a of net elements 10a adjacent to the inner row 92a. The inner row 92a lies in the center of the safety net. The inner row 92a lies between the outermost row 16a and the further outermost row 96a. The safety net has a minimum total extension 100a. The minimum total extension 100a runs parallel to the main extension direction 14a of the safety net. The safety net has a minimum total extension 20a lying within the inner region 22a. The minimum total extension 20a within the inner area 22a and the minimum total extension 100a of the safety net are identical to each other.The maximum total extension 12a and / or the maximum total extension 94a located within the outer region 18a, 26a is greater than the minimum total extension 20a and / or the minimum total extension 100a of the safety net located within the inner region 22a. The maximum total extension 12a and / or the maximum total extension 94a of the safety net located within the outer region 18a, 26a is greater than the minimum total extension 20a and / or the minimum total extension 100a of the safety net located within the inner region 22a by at least an average diameter of the net elements 10a of the safety net. Figure 1In the embodiment shown, the average diameter of the mesh elements 10a corresponds to the mesh element diameter 88a. A size difference between the maximum total extension 12a, 94a and the minimum total extension 20a, 100a is greater than four times the mesh element diameter 88a. It is conceivable that at least one mesh element 10a has a predetermined breaking point 40a in the outer region 18a, the further outer region 26a and / or the inner region 22a.
[0035] The safety net has two mirror planes 30a, 32a. The mirror planes 30a, 32a are arranged perpendicular to a main extension plane 28a of the safety net. One mirror plane 30a is perpendicular to the main extension direction 14a. One mirror plane 32a is parallel to the main extension direction 14a. The net elements 10a are arranged mirror-symmetrically to the mirror planes 30a, 32a. The safety net has a constant total extension 104a in a direction lying in the main extension plane 28a and perpendicular to the main extension direction 14a.
[0036] The safety net has four subregions 34a, 36a, 42a, 44a that extend beyond the minimum overall extension 20a of the inner region 22a in a direction parallel to a main extension direction 14a of the safety net. Subregions 34a, 36a, 42a, 44a have six net elements 10a. Subregions 34a, 36a, 42a, 44a of the safety net have a number of net elements 10a arranged side by side in a row in the main extension direction 14a of the safety net, which corresponds to two seventeenths of a maximum number of all rows of net elements 10a arranged side by side perpendicular to the main extension direction 14a of the safety net.The partial area 34a, 36a, 42a, 44a of the safety net has a number of net elements 10a arranged side by side in a row perpendicular to the main extension direction 14a of the safety net, which corresponds to two seventeenths of the maximum number of all rows of net elements 10a arranged side by side perpendicular to the main extension direction 14a of the safety net. The partial area 34a, 36a, 42a, 44a of the safety net has a triangular arrangement 46a of net elements 10a. Alternatively, at least one of the partial areas 34a, 36a, 42a, 44a can have an arrangement deviating from the triangular arrangement 46a, for example, an at least rectangular arrangement 120a (cf. ). Fig. 2) and / or an at least partially polygonal arrangement. A net element 10a in the partial area 34a, 36a, 42a, 44a of the safety net has a tear strength in a test which deviates from an average tear strength of net elements 10a outside the partial area 34a, 36a, 42a, 44a. Alternatively, all net elements 10a in the test can have a substantially identical tear strength. It is conceivable that at least one net element 10a in at least one of the partial areas 34a, 36a, 42a, 44a has a predetermined breaking point 40a. Alternatively, the safety net can be designed as a mesh net 122a (cf. Fig. 3). The mesh net 122a is formed from interlocking coils 124a. The coils 124a have at least one node 128a at their ends, forming a loop 126a. Loops 126a of adjacent coils 124a interlock with each other. The safety net formed from coils 124a has four partial regions 34'a, 36'a, 42'a, 44'a that project beyond the minimum overall extension 20a of the inner region 22a in a direction parallel to a main extension direction 14a of the safety net. The partial regions 34'a, 36'a, 42'a, 44'a of the safety net formed from coils 122a have a rectangular arrangement 120'a of net elements 10a.
[0037] Fig. 4 shows a section through a part of the safety net along a section axis A (cf. Fig. 1 ). The one on the left side of Fig. 4 The network element 10a shown lies within the sub-area 36a. The one on the right side of Fig. 4The network element 10a shown lies outside the sub-area 36a. Fig. 4The network element 10a shown is designed as a wire rope 106a. The network element 10a has a network element cross-sectional diameter 86a. The network element cross-sectional diameter 86a is constant over a circumference 72a of the network element 10a. The wire rope 106a has a plurality of wire windings 48a. The wire windings 48a have a wire diameter 24a. The wire diameter 24a is constant over the circumference 72 of the network element 10a. The network element cross-sectional diameter 86a corresponds to a multiple of the wire diameter 24a. The network element 10a has a wire strand 108a. The wire strand 108a has 19 wire windings 48a. The wire strand 108a has a wire strand diameter 52a. The wire strand diameter 52a is constant over the circumference 72a of the mesh element 10a. The mesh element cross-sectional diameter 86a corresponds to a multiple of the wire strand diameter 52a. The mesh element 10a has seven wire strand windings 50a.
[0038] Fig. 5shows a portion of a net and rope construction 62a with the safety net. The safety net is used as a catch net 74a in the net and rope construction 62a. The catch net 74a is intended to catch a dynamic impactor in a catch surface 38a of the catch net 74a. The catch net 74a is positioned such that a main impact direction of a dynamic impactor is perpendicular to the catch surface 38a. Fig. 5shows the main impact direction of a dynamic impact body into or out of the image plane. According to the invention, the net elements 10a of the partial areas 34a, 36a, 42a, 44a are pushed together in the assembled, unloaded state. Outwardly located net elements 10a of the safety net in the main extension direction 14a at least partially have shackles 82a. By means of the shackles 82a, net elements 10a of the safety net are shackle-linked to net elements 10a of another, adjacent safety net. The net and rope construction 62a has a support 80a. The net and rope construction 62a has a wall fastening element 78a. The wall fastening element 78a is intended to fasten the support 80a to a wall 76a.
[0039] The net and rope construction 62a has a first guide rope 64a. The first guide rope 64a is arranged on a side of the safety net facing away from the wall 76a, in particular the wall fastening element 78a. The first guide rope 64a is arranged on a side of the support 80a facing away from the wall 76a, in particular the wall fastening element 78a. The first guide rope 64a is connected to the support 80a. The net and rope construction 62a has a second guide rope 84a. The second guide rope 84a is arranged on a side of the safety net facing the wall 76a, in particular the wall fastening element 78a. The second guide rope 84a is arranged on a side of the support 80a facing the wall 76a, in particular the wall fastening element 78a. The second guide cable 84a is connected to the support 80a.
[0040] The safety net has two outer edges 66a, 110a in a direction perpendicular to the main extension direction 14a of the safety net. The net elements 10a at the outer edges 66a, 110a form the two outermost rows 16a, 96a. The first guide cable 64a is guided through the net elements 10a of the outermost row 16a. The second guide cable 84a is guided through the net elements 10a of the further outermost row 96a. The first guide cable 64a is designed as a support cable 68a. The second guide cable 84a is designed as a support cable 68a.
[0041] In the Figures 7 to 11Five further embodiments of the invention are shown. The following descriptions and the drawings are essentially limited to the differences between the embodiments, whereby with regard to components with the same designation, in particular with regard to components with the same reference numerals, reference is also made to the drawings and / or the description of the other embodiments, in particular to the Figures 1 to 6 To distinguish the embodiments, the letter a is added to the reference numerals of the embodiment in the Figures 1 to 6 In the examples of the Figures 7 to 11 the letter a is replaced by the letters b to f.
[0042] Fig. 7shows a mesh element 10b. The mesh element 10b has an energy absorber 54b. The energy absorber 54b is formed integrally with the mesh element 10b. The energy absorber 54b is designed as a corrugated region of the mesh element 10b. Alternatively, the energy absorber 54b could be designed as a twisted region of the mesh element 10b, in particular a spiral-shaped one, and / or as a region with a material that differs from the rest of the mesh element 10b, in particular a spring-elastic material. The mesh element 10b has a further energy absorber 112b. The further energy absorber 112b is formed separately from the mesh element 10b. The further energy absorber 112b is arranged between two adjacent, non-overlapping mesh elements 10b. The further energy absorber 112b is designed as a spring-elastic, curved element. The net element 10b with the energy absorbers 54b, 112b is arranged in a partial area 34b, 36b, 42b, 44b of the safety net.Alternatively, it is conceivable that the net element 10b with the energy absorbers 54b, 112b is arranged in a region of the safety net different from the partial region 34b, 36b, 42b, 44b, for example an inner region 22b and / or a region of an outer region 18b, 26b of the safety net different from the partial region 34b, 36b, 42b, 44b.
[0043] The section view in Fig. 8 The section of a safety net shown shows two net elements 10c. The one on the left side of Fig. 8 The net element 10c shown lies within a partial area 36c of the safety net. The one on the right side of Fig. 8The network element 10c shown lies outside the sub-region 36c. The network element 10c within the sub-region 36c has a number of wire turns 48c that differs from the number of wire turns 48c of the network element 10c outside the sub-region 36c. The network element 10c within the sub-region 36c has a larger number of wire turns 48c than the network element 10c outside the sub-region 36c. Alternatively, it is conceivable that the network element 10c within the sub-region 36c has a smaller number of wire turns 48c than the network element 10c outside the sub-region 36c. The network element 10c has a wire strand 108c. The wire strand 108c has a plurality of wire strand turns 50c. The wire strand winding 50c has a wire strand diameter 52c. The wire strand diameter 52c of the network element 10c in the partial region 36c is larger than a wire strand diameter 52'c of a network element 10c outside the partial region 36c.Alternatively, the wire strand diameter 52c of the mesh element 10c in the partial area 36c could be larger than the wire strand diameter 52'c of the mesh element 10c outside the partial area 36c.
[0044] The section view in Fig. 9 The section of a safety net shown shows two net elements 10d. The one on the left side of Fig. 9 The net element 10d shown lies within a partial area 36d of the safety net. The one on the right side of Fig. 9The network element 10d shown lies outside a partial area 36d. The network element 10d has a wire winding 48d. The wire winding 48d has a wire diameter of 24d. The wire diameter 24d of a wire winding 48d within the partial area 36d is larger than an average wire diameter 24d of wire windings 48d of network elements 10d outside the partial area 36d. Alternatively, it is conceivable that the network element 10d within the partial area 36d has a smaller wire diameter 24d of the wire winding 48d than the network element 10d outside the partial area 36d. The network element 10d has a network element cross-sectional diameter of 86d. The network element cross-sectional diameter 86d of the network element 10d within the partial area 36d is larger than a network element cross-sectional diameter 86'd of a network element 10d outside the partial area 36d.Alternatively, the network element cross-sectional diameter 86d of the network element 10d within the sub-area 36d could be smaller than the network element cross-sectional diameter 86'd of the network element 10d outside the sub-area 36d.
[0045] The section view in Fig. 10 The section of a safety net shown shows two net elements 10e. The one on the left side of Fig. 10 The network element 10e shown lies within a sub-area 36e. The one on the right side of Fig. 10 The network element 10e shown lies outside the subregion 36e. The network element 10e in the subregion 36e has a material composition 114e. The material composition 114e of network elements 10e in the subregion 36e is different from a material composition 114'e of the network elements 10e outside the subregion 36e.
[0046] Fig. 11shows a safety net with net elements 10f. The net elements 10f have a circumference 72f. The net elements 10f have an outer shape 116f. A circumference 72'f, 72"f of a net element 10f within a sub-area 34f, 42f of the safety net differs significantly from an average circumference 72f of net elements 10f outside the sub-area 34f, 42f. The circumference 72'f of a net element 10f in the sub-area 34f is smaller than the circumference 72f, 72"f of a net element 10f outside the sub-area 34f. The circumference 72"f of a network element 10f in the sub-area 42f is larger than the circumference 72f, 72'f of a network element 10f outside the sub-area 42f. An outer shape 116'f, 116"f of a network element 10f in the sub-area 34f, 42f deviates significantly from an average outer shape 116f of the network elements 10f outside the sub-area 34f, 42f.
Claims
1. A net and rope construction (62a-f) with a safety net in an assembled state, wherein the safety net is formed at least to a large extent by mutually engaging net elements (10a-f), wherein the net elements (10a-f) are filamentlike structures which are closed per se, wherein a maximum overall extension (12a-f) of the safety net parallel to a main extension direction (14a-f) of the safety net is substantially greater in an exterior region (18a-f) of the safety net, which includes at least one outermost row (16a-f) of net elements (10a-f), than a minimum overall extension (20a-f) of the safety net parallel to the main extension direction (14a-f) in an interior region (22a-f) of the safety net which differs from the exterior region (18a-f), wherein the overall extensions (12a-f, 20a-f) are measured with a safety net spread-out in a completely flat manner and devoid of inner stresses, characterized in that the exterior region (18a-f) comprises, on at least one outer edge (66a-f, 110a-f), a plurality of yielding net elements (10a-f) which, in the main extension direction (14a-f), protrude over the minimum overall extension (20a-f) of the safety net, and which are pushed together in the assembled, non-loaded state, at which the safety net is suspended within the net and rope construction (62a-f) and which are configured, when under load, to create an additional buffer path.
2. The net and rope construction (62a-f) according to claim 1, characterized in that the maximum overall extension (12a-f) of the safety net parallel to the main extension direction (14a-f) of the safety net is greater in the exterior region (18a-f) at least by a mean diameter of the net elements (10a-f) of the safety net than the minimum overall extension (20a-f) of the safety net parallel to the main extension direction (14a-f) in the interior region (22a-f) which differs from the exterior region (18a-f).
3. The net and rope construction (62a-f) according to claim 1 or 2, characterized in that a maximum overall extension (70a-f) of the safety net parallel to the main extension direction (14a-f) of the safety net is greater in a further exterior region (26a-f) of the safety net which differs from the exterior region (18a-f) than the minimum overall extension (20a-f) of the safety net parallel to the main extension direction (14a-f) in the interior region (22a-f) of the safety net which differs from the exterior region (18a-f) and from the further exterior region (26a-f).
4. The net and rope construction (62a-f) according to any one of the preceding claims, characterized in that the net elements (10a-f) are arranged in a mirror-symmetrical manner with respect to a mirror plane (30a-f, 32a-f), which is at least substantially perpendicular to a main extension plane (28a-f) of the safety net.
5. The net and rope construction (62a-f) according to any one of the preceding claims, characterized in that at least one partial region (34a-f, 36a-f, 42a-f, 44a-f) of the safety net which protrudes over the interior region (22a-f) in a direction parallel to the main extension direction (14a-f) of the safety net comprises at least four net elements (10a-f).
6. The net and rope construction (62a-f) according to any one of the preceding claims, characterized in that at least one partial region (34a-f, 36a-f, 42a-f, 44a-f) of the safety net, which protrudes over the interior region (22a-f) in a direction parallel to a main extension direction (14a-f) of the safety net, comprises a number of net elements (10a-f) arranged side by side in a row in the main extension direction (14a-f) of the safety net, which corresponds to at least a twentieth of a maximum number of all rows of net elements (10a-f) arranged side by side perpendicularly to the main extension direction (14a-f) of the safety net.
7. The net and rope construction (62a-f) according to any one of the preceding claims, characterized in that at least one partial region (34a-f, 36a-f, 42a-f, 44a-f) of the safety net, which protrudes over the interior region (22a-f) in a direction parallel to a main extension direction (14a-f) of the safety net, comprises a number of net elements (10a-f) arranged side by side in a row perpendicularly to the main extension direction (14a-f) of the safety net, which corresponds to at least a tenth of a maximum number of all rows of net elements (10a-f) arranged side by side perpendicularly to the main extension direction (14a-f) of the safety net.
8. The net and rope construction (62a-f) according to any one of the preceding claims, characterized in that at least one partial region (34a-f, 36a-f, 42a-f, 44a-f) of the safety net, which protrudes over the interior region (22a-f) in a direction parallel to the main extension direction (14a-f) of the safety net, comprises an at least substantially triangle-shaped arrangement (46a-f) of net elements (10a-f).
9. The net and rope construction (62a-f) according to any one of the preceding claims, characterized in that at least one net element (10f) of at least one partial region (34f, 36f, 42f, 44f) of the safety net, which protrudes over the interior region (22f) in a direction parallel to a main extension direction (14f) of the safety net, comprises a periphery (72f) which deviates substantially from a mean periphery of net elements (10f) outside the partial region (34f, 36f, 42f, 44f).
10. The net and rope construction (62a-f) according to any one of the preceding claims, characterized in that at least one net element (10a-f) of at least one partial region (34a-f, 36a-f, 42a-f, 44a-f) of the safety net, which protrudes over the interior region (22a-f) in a direction parallel to a main extension direction (14a-f) of the safety net, has in a test trial a tear resistance which deviates substantially from a mean tear resistance of net elements (10a-f) outside the partial region (34a-f, 36a-f, 42a-f, 44a-f).
11. The net and rope construction (62a-f) according to any one of the preceding claims, characterized in that at least one net element (10a-f) comprises a predetermined breaking point (40a-f).
12. The net and rope construction (62a-f) according to any one of the preceding claims, characterized in that at least one net element (10e) of at least one partial region (34e, 36e, 42e, 44e) of the safety net, which protrudes over the interior region (22e) in a direction parallel to a main extension direction (14e) of the safety net, at least has a material composition (114e) which differs substantially from a material composition (114'e) of the net elements (10e) outside the partial region (34e, 36e, 42e, 44e).
13. The net and rope construction (62a-f) according to any one of the preceding claims, characterized in that at least one net element (10d) of at least one partial region (34d, 36d, 42d, 44d) of the safety net, which protrudes over the interior region (22d) in a direction parallel to a main extension direction (14d) of the safety net, comprises at least one wire winding (48d), the wire diameter (24d) of which is substantially greater than a mean wire diameter of wire windings (48d) of net elements (10d) outside the partial region (34d, 36d, 42d, 44d).
14. The net and rope construction (62a-f) according to any one of the preceding claims, characterized in that at least one net element (10c) of at least one partial region (34c, 36c, 42c, 44c) of the safety net, which protrudes over the interior region (22c) in a direction parallel to a main extension direction (14c) of the safety net, comprises at least a number of wire windings (48c) which deviates substantially from a mean number of wire windings of net elements (10c) outside the partial region (34c, 36c, 42c, 44c).
15. The net and rope construction (62a-f) according to any one of the preceding claims, characterized in that at least one net element (10b) of at least one partial region (34b, 36b, 42b, 44b) of the safety net, which protrudes over the interior region (22b) in a direction parallel to a main extension direction (14b) of the safety net, comprises at least one energy absorber (54b).
16. The net and rope construction (62a-f) according to claim 15, characterized in that the energy absorber (54b) is realized integrally with the at least one net element (10b).
17. The net and rope construction (62a-f) according to any one of the preceding claims, characterized in that at least one net element (10a-f) realizes precisely three connection regions (56a-f, 58a-f, 60a-f) to neighboring net elements (10a-f).
18. The net and rope construction (62a-f) according to any one of the preceding claims, characterized by at least one guide rope (64a-f, 84a-f) which determines a degree of freedom of movement of the net elements (10a-f) and which is guided through at least every third net element (10a-f) of a row of net elements (10a-f), which extends parallel to a main extension direction (14a-f) of the safety net, on at least one outer edge (66a-f, 110a-f) of the safety net and wherein the guide rope (64a-f, 84a-f) is realized as at least one support rope (68a-f).
19. The net and rope construction (62a-f) according to any one of the preceding claims, characterized by a suitability for catching heavy loads, preferably dynamic impact bodies.
20. A use of a safety net, which is formed at least to a large extent by mutually engaging net elements (10a-f), as a catch net (74a-f) in the net and rope construction (62a-f) according to any one of claims 1 to 19, wherein the net elements (10a-f) are filament-like structures which are closed per se, wherein a maximum overall extension (12a-f) of the safety net parallel to a main extension direction (14a-f) of the safety net is substantially greater in an exterior region (18a-f) of the safety net, which includes at least one outermost row (16a-f) of net elements (10a-f), than a minimum overall extension (20a-f) of the safety net parallel to the main extension direction (14a-f) in an interior region (22a-f) of the safety net which differs from the exterior region (18a-f), wherein the overall extensions (12a-f; 20a-f) are measured with a safety net spread-out in a completely flat manner and devoid of inner stresses, and wherein the exterior region (18a-f) comprises, on at least one outer edge (66a-f, 110a-f), a plurality of net elements (10a-f) which, in the main extension direction (14a-f) protrude over the minimum overall extension (20a-f) of the safety net.