阅读说明：本技术 安全网 (Safety net ) 是由 马塞尔·森豪斯 于 2018-09-28 设计创作，主要内容包括：本发明涉及一种安全网,尤其是用于捕获重负荷,优选为动态冲击体,特别是岩石,安全网至少在很大程度上由相互接合的网元件(10a-f)形成。根据本发明,平行于安全网的主延伸方向(14a-f)的安全网的最大总延伸(12a-f)在安全网的外部区域(18a-f)中显著大于在不同于外部区域(18a-f)的安全网的内部区域(14a-f)中平行于主延伸方向(14a-f)的安全网的最小总延伸(20a-f),外部区域包括至少一个最外行(16a-f)的网元件(10a-f)。(The invention relates to a safety net, in particular for capturing heavy loads, preferably dynamic impact bodies, in particular rocks, which is formed at least to a large extent from mutually engaging net elements (10 a-f). According to the invention, the maximum total extension (12a-f) of the safety net parallel to the main direction of extension (14a-f) of the safety net is significantly greater in an outer region (18a-f) of the safety net than the minimum total extension (20a-f) of the safety net parallel to the main direction of extension (14a-f) in an inner region (14a-f) of the safety net different from the outer region (18a-f), which comprises at least one outermost row (16a-f) of net elements (10 a-f).)

1. A safety net, in particular for capturing heavy loads, preferably dynamic impact bodies, in particular rocks, wherein the safety net is formed at least to a large extent by mutually engaging net elements (10a-f), characterized in that the maximum total extension (12a-f) of the safety nets parallel to the main direction of extension (14a-f) of the safety nets is significantly greater in the outer regions (18a-f) of the safety nets than the minimum total extension (20a-f) of the safety nets parallel to the main direction of extension (14a-f) in the inner regions (22a-f) of the safety nets different from the outer regions (18a-f), wherein the outer zone comprises in particular at least one outermost row (16a-f) of net elements (10 a-f).

2. Safety net according to claim 1, characterized in that the maximum total extension (12a-f) of the safety net parallel to its main direction of extension (14a-f) is greater in the outer regions (18a-f) by at least the mean diameter of the net elements (10a-f) of the safety net than the minimum total extension (20a-f) of the safety net parallel to the main direction of extension (14a-f) in the inner regions (22a-f), the inner regions (22a-f) being different from the outer regions (18 a-f).

3. The safety net according to claim 1 or 2, characterized in that a maximum total extension (70a-f) of the safety net parallel to a main direction of extension (14a-f) of the safety net is greater in a further outer region (26a-f) of the safety net different from the outer region (18a-f) than a minimum total extension (20a-f) of the safety net parallel to the main direction of extension (14a-f) in an inner region (22a-f) of the safety net, the inner region (22a-f) of the safety net being different from the outer region (18a-f) and the further outer region (26 a-f).

4. Safety net according to any preceding claim, 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 the main extension plane (28a-f) of the safety net.

5. Safety net according to any of the preceding claims, characterized in that at least one partial region (34a-f, 36a-f, 42a-f, 44a-f) of the safety net comprises at least four net elements (10a-f), which at least one partial region (34a-f, 36a-f, 42a-f, 44a-f) protrudes beyond the inner region (22a-f) in a direction parallel to the main direction of extension (14a-f) of the safety net.

6. Safety net according to any of the preceding claims, characterized in that at least one partial area (34a-f, 36a-f, 42a-f, 44a-f) of the safety net comprises a plurality of net elements (10a-f) arranged side by side in rows in the main direction of extension (14a-f) of the safety net, said plurality of net elements (10a-f) corresponding to at least one twentieth of the maximum number of net elements (10a-f) of all rows arranged side by side perpendicular to the main direction of extension (14a-f) of the safety net, the at least one partial region (34a-f, 36a-f, 42a-f, 44a-f) protrudes beyond the inner region (22a-f) in a direction parallel to the main direction of extension (14a-f) of the safety net.

7. Safety net according to any of the preceding claims, characterized in that at least one partial area (34a-f, 36a-f, 42a-f, 44a-f) of the safety net comprises a plurality of net elements (10a-f) arranged side by side in rows perpendicular to the main direction of extension (14a-f) of the safety net, said plurality of net elements (10a-f) corresponding to at least one tenth of the maximum number of net elements (10a-f) of all rows arranged side by side perpendicular to the main direction of extension (14a-f) of the safety net, the at least one partial region (34a-f, 36a-f, 42a-f, 44a-f) protrudes beyond the inner region (22a-f) in a direction parallel to the main direction of extension (14a-f) of the safety net.

8. The safety net 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 comprises an at least substantially triangular arrangement (46a-f) of net elements (10a-f), the at least one partial region (34a-f, 36a-f, 42a-f, 44a-f) protruding beyond the inner region (22a-f) in a direction parallel to a main direction of extension (14a-f) of the safety net.

9. The safety net 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 comprises a perimeter (72f) that is significantly offset from an average perimeter of net elements (10f) outside the partial region (34f, 36f, 42f, 44f), the at least one partial region (34f, 36f, 42f, 44f) protruding beyond the inner region (22f) in a direction parallel to a main direction of extension (14f) of the safety net.

10. Safety net according to any 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 has a tear strength under test that deviates significantly from the average tear strength of net elements (10a-f) outside the partial region (34a-f, 36a-f, 42a-f, 44a-f), the at least one partial region (34a-f, 36a-f, 42a-f, 44a-f) protruding beyond the inner region (22a-f) in a direction parallel to the main direction of extension (14a-f) of the safety net.

11. The safety net according to any preceding claim, characterized in that at least one net element (10a-f) comprises a predetermined breaking point (40 a-f).

12. The safety net 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 has at least a material composition (114e) that is significantly different from a material composition (114' e) of a net element (10e) outside the partial region (34e, 36e, 42e, 44e), the at least one partial region (34e, 36e, 42e, 44e) protruding beyond the inner region (22e) in a direction parallel to a main extension direction (14e) of the safety net.

13. Safety net according to any 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 comprises at least one wire winding (48d), the wire diameter (24d) of which (48d) is significantly larger than the average wire diameter of the wire windings (48d) of the net elements (10d) outside the partial region (34d, 36d, 42d, 44d), the at least one partial region (34d, 36d, 42d, 44d) protruding beyond the inner region (22d) in a direction parallel to the main extension direction (14d) of the safety net.

14. Safety net according to any 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 comprises at least a number of wire windings (48c), the number of wire windings (48c) deviating significantly from the average number of wire windings of net elements (10c) outside the partial region (34c, 36c, 42c, 44c), the at least one partial region (34c, 36c, 42c, 44c) protruding beyond the inner region (22c) in a direction parallel to the main extension direction (14c) of the safety net.

15. Safety net according to any 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 comprises at least one energy absorber (54b), the at least one partial region (34b, 36b, 42b, 44b) protruding beyond the inner region (22b) in a direction parallel to the main extension direction (14b) of the safety net.

16. The safety net according to claim 15, characterized in that the energy absorber (54b) is realized integrally with the at least one net element (10 b).

17. The safety net according to any one of the preceding claims, characterized in that at least one network element (10a-f) implements exactly three connection areas (56a-f, 58a-f, 60a-f) to adjacent network elements (10 a-f).

18. A net and rope arrangement (62a-f) having a safety net according to any of claims 1-17.

19. A net and rope arrangement (62a-f) according to claim 18, characterized in that at least one guide rope (64a-f, 84a-f) is led through at least every third two net elements (10a-f) in a row of net elements (10a-f), which row extends parallel to the main direction of extension (14a-f) of the safety net on at least one outer edge (66a-f, 110a-f) of the safety net.

20. Net and rope arrangement (62a-f) according to claim 19, characterized in that the guide ropes (64a-f, 84a-f) are realized as at least one support rope (68 a-f).

21. Use of a safety net according to any of claims 1 to 17 as a capture net (74a-f) in a net and rope arrangement (62a-f), in particular in a net and rope arrangement according to any of claims 18 to 20.

Background

The invention relates to a safety net according to the preamble of claim 1.

A safety net for capturing rock has been proposed which is formed at least to a large extent from mutually engaging net elements.

It is an object of the invention, inter alia, to provide a universal safety net with increased safety. According to the invention, this object is achieved by the features of claim 1, while advantageous designs and further developments of the invention can be obtained in the dependent claims.

Disclosure of Invention

The invention relates to a safety net, in particular for capturing heavy loads, preferably dynamic impact bodies, in particular rocks, wherein the safety net is formed at least to a large extent by mutually engaging net elements.

It is proposed that the maximum total extension of the safety net parallel to the main direction of extension of the safety net in an outer region of the safety net, which outer region comprises in particular at least one outermost row of net elements, is greater than, in particular significantly greater than, the minimum total extension of the safety net parallel to the main direction of extension in an inner region of the safety net different from the outer region. Thus, safety can be advantageously improved, particularly in terms of capturing dynamic impact bodies in a safety net. In an advantageous manner, in particular by being able to keep the capture area advantageously large after the impact of the dynamic impact body, it is possible to enlarge the capture area which can reliably capture the dynamic impact body. In an advantageous manner, in particular in the region which is already covered by the catch region before the impact, the formation of open positions and/or holes as a result of the impact of the dynamic impact body can be avoided, so that it is advantageously possible to prevent the further dynamic impact body from falling through the safety net in the event of a further impact after the impact. Advantageously, an additional damping path can be formed by means of an additional net element, which yields, in particular under load, on at least one outer edge from which the safety net is suspended, so that impacts can advantageously be damped in a better manner. In addition, the impact of dynamic impact bodies can advantageously be absorbed in the vicinity of the edges of the safety net, in particular by additional damping paths, so that possible damage to the suspension of the safety net is particularly reduced. Furthermore, by means of the safety net according to the invention in the installed state, a simple guidance of the net elements around the support elements carrying the safety net can be achieved. In addition, the stability can advantageously be improved, in particular by the fact that the forces which cooperate with the safety net can advantageously be distributed to a large number of net elements. Furthermore, in particular, an advantageous, in particular uniform force distribution can be achieved, as a result of which at least one trapping property, for example deformability, extensibility, rebound property, penetration strength, etc., of the safety net for capturing at least one dynamic impact body can be optimized in particular. Furthermore, the safety net according to the invention enables in particular a simplified assembly, so that costs and costs of materials and/or assembly can be advantageously reduced.

A "dynamic impact body" is to be understood to mean, in particular, a mass which moves under the influence of a gravitational potential. In particular, the dynamic impact body comprises at least one rock, preferably crushed stone and/or frozen water. Alternatively or in addition thereto, the dynamic impact body can also comprise a machine or a machine part, for example a machine part of a vehicle and/or a machine part of a construction machine, and/or a living organism or a part of a living organism, for example a tree trunk and/or a tree branch. In particular, a "heavy load" is heavier than 1kg, preferably heavier than 10kg, preferably heavier than 100kg, particularly preferably heavier than 1000 kg. A "net element" is to be understood to mean, in particular, a particularly detachable basic element of a security net, which realizes the security net by mutual engagement with adjacent basic elements. Preferably, the net element is realized as a filament-like structure, in particular a wire structure, which is closed on itself. As an alternative to this, the network element may be implemented as at least one spiral of a mesh network. The structure, in particular the wire structure, is preferably substantially in one plane in the unloaded state. The filaments, in particular the metal filaments, preferably the metal filaments of the metal filament arrangement, are preferably high strength steel filaments. For example, the high strength steel may be spring steel and/or wire steel and/or steel suitable for use in wire ropes. In particular, the tensile strength of the metal wire is at least 800N mm^-2Advantageously at least 1000N mm^-2Particularly advantageously at least 1200N mm^-2Preferably at least 1400N mm^-2And particularly preferably at least 1600N mm^-2In particular about 1770N mm^-2Or is largeAbout 1960N mm^-2The tensile strength of (2). It is also conceivable that the wire comprises an even higher tensile strength, for example at least 2000Nmm^-2Or at least 2200N mm^-2Or even at least 2400N mm^-2The tensile strength of (2). Thus, a high load capacity, in particular a high tensile strength and/or a high level of stiffness transverse to the grid may be achieved. Furthermore, advantageous bending properties can also be achieved. In particular, the mesh element may comprise an irregular shape or preferably a regular shape, which at least partially provides the shape of a circle, a diamond and/or a regular and/or irregular polygon. In particular, the various network elements of the security net may preferably comprise various shapes, however, the network elements comprise substantially identical shapes. Preferably, the net element is realized as a ring, in particular a wire ring. In particular, the net elements form at least partially net elements of a ring network. In particular, the net element comprises at least one bundle of net elements or preferably exactly one individual net element. In particular, a bundle of net elements is to be understood as a plurality of net elements which are provided for being placed one above the other in a substantially concentric manner in a safety net. The net element preferably comprises at least a 3cm diameter, preferably at least a 5cm diameter, and particularly preferably less than 40cm diameter. The term "to a large extent" is to be understood, in particular in this respect, as being in particular up to at least 80%, preferably up to at least 90%, preferably up to at least 95%, particularly preferably completely. The term "overall extension" is to be understood in particular as an extension between two oppositely situated outermost edges of the security net. The "main direction of extension" of an object is to be understood in this case in particular to mean a direction which runs parallel to the longest side of the smallest geometrical cuboid which completely surrounds the object only. In particular, any type of extension is understood to mean that it is measured with the security mesh deployed in a completely flat manner, in particular without internal stresses. An "outermost row of net elements" is to be understood in particular to mean a row of net elements extending along a straight line, which on at least one common side has no adjacent net elements. The outer region extends in particular in the main extension direction of the safety net, at least over the entire extent of the safety net, in particular of the safety netIs extended over the maximum total extension of the. The outer region preferably comprises at least a plurality of, in particular a complete, rows of net elements extending along a line preferably parallel to the main direction of extension, preferably at least two, in particular a complete, row of net elements extending along a line preferably parallel to the main direction of extension, and particularly preferably at least one, in particular a complete, row of net elements extending along a line preferably parallel to the main direction of extension. The outer zone preferably comprises at least one outermost row of mesh elements. The interior region extends in particular in the main extension direction of the safety net, at least over the entire extent of the safety net, in particular over a minimum overall extension of the safety net. The inner region preferably comprises at least a plurality of, in particular a complete, rows of net elements extending along a line preferably parallel to the main direction of extension, preferably at least two, in particular a complete, row of net elements extending along a line preferably parallel to the main direction of extension, and particularly preferably at least one, in particular a complete, row of net elements extending along a line preferably parallel to the main direction of extension. In particular, the outer region and the inner region do not overlap with respect to each other.

It is furthermore proposed that the maximum overall extension of the safety net parallel to the main direction of extension of the safety net is preferably at least one times, preferably at least two times, preferably at least three times, greater than the average diameter of the net elements in an outer region than the minimum overall extension of the safety net parallel to the main direction of extension in an inner region of the safety net different from the outer region, and/or at least 5%, preferably at least 10%, preferably at least 15% and particularly preferably at least 20% greater than the minimum overall extension of the safety net parallel to the main direction of extension in an inner region of the safety net different from the outer region. In particular, due to this design of the safety net, increased safety can advantageously be achieved, in particular with regard to the capture of dynamic impact bodies in the safety net. In an advantageous manner, in particular by being able to keep the capture area advantageously large after the impact of the dynamic body, it is possible to increase the size of the capture area which can reliably capture the dynamic impact body. Advantageously, an additional damping path can be formed by means of an additional net element, which yields, in particular under load, on at least one outer edge from which the net element is suspended, so that impacts can advantageously be damped in a better manner. By "average diameter" is to be understood, in particular, the average diameter of the web elements, as seen in the essentially flat direction of deployment of the security web. In particular, a plurality of randomly determined network elements of the security net, preferably all network elements, are used for calculating the mean diameter. Preferably, the diameter of the individual net elements is calculated from the average of the diameter parallel to the main extension direction of the safety net and/or the diameter perpendicular to the main extension direction of the safety net. The "diameter" of the mesh elements is preferably understood to be the diameter of the smallest circle which completely encompasses the mesh elements, in particular in the main direction of extension of the security mesh. In particular, the shape of the unfolded safety net deviates from a rectangular shape by at least one corner.

It is further proposed that the maximum overall extension of the safety net parallel to the main direction of extension of the safety net is greater in a further outer region of the safety net different from the outer region than in an inner region of the safety net different from the outer region and the further outer region, which comprises in particular at least one further outermost row of net elements different in particular from the outermost row of net elements, than the minimum overall extension of the safety net parallel to the main direction of extension. In particular, due to this design of the safety net, increased safety can advantageously be achieved, in particular with regard to the capture of dynamic impact bodies in the safety net. In an advantageous manner, the capture area which can reliably capture the dynamic impact body can be enlarged. Advantageously, an additional damping path can be formed by means of an additional net element, which yields, in particular under load, on at least one outer edge from which the net element is suspended, so that, in particular by being able to keep the capture area advantageously large after an impact of the dynamic impact body, the impact can advantageously be damped in a better manner. The further outer region extends in particular in the main extension direction of the safety net, at least over the entire extent of the safety net, in particular over the maximum overall extension of the safety net. The further outer region preferably comprises at least a plurality of, in particular a complete, rows of net elements extending along a line preferably parallel to the main direction of extension, preferably at least two, in particular a complete, row of net elements extending along a line preferably parallel to the main direction of extension, and particularly preferably at least one, in particular a complete, row of net elements extending along a line preferably parallel to the main direction of extension. The further outer region preferably comprises at least one outermost row of net elements. The outer region, the further outer region and/or the inner region preferably do not overlap each other. The further outer region preferably comprises a further outer edge of the safety net, which is arranged opposite an outer edge comprised 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, in particular at least at two corners. The main extension direction of the outer region, the main extension direction of the further outer region and/or the main extension direction of the inner region preferably extend perpendicularly in a plane parallel to the safety net and/or preferably parallel to the main extension direction of the safety net. Preferably, the outer region, the further outer region and/or the inner region preferably comprise at least one side edge, preferably at least two side edges, of the safety net, which side edges in particular extend at least partially at an angle to the main direction of extension and/or at least partially perpendicularly to the main direction of extension.

It is also proposed that the net elements are arranged in a mirror-symmetrical manner with respect to a mirror plane at least substantially perpendicular to the main extension plane of the safety net and/or with respect to a mirror plane at least substantially parallel to the main extension direction of the safety net. In particular, due to this design of the safety net, increased security can advantageously be achieved, in particular with regard to the capture of dynamic impact bodies in the safety net. In an advantageous manner, in particular by being able to keep the capture area advantageously large after the impact of the dynamic body, it is possible to enlarge the capture area which can reliably capture the dynamic impact body. Advantageously, an additional damping path can be formed by means of an additional net element, which yields, in particular under load, on at least one outer edge from which the net element is suspended, as a result of which impacts can advantageously be damped in a better manner. In particular, the shape of the unfolded safety net deviates from a rectangular shape by at least four corners. The "main direction of extension" of the structural unit is to be understood in particular as a plane parallel to the largest lateral surface of a smallest imaginary cuboid which completely surrounds the structural unit only and in particular extends through the center point of the cuboid.

It is furthermore proposed that at least one partial region of the safety net, in particular of the outer regions of the safety net, projects beyond the inner region, in particular beyond the total extension of the inner region, in a direction parallel to the main direction of extension of the safety net, the partial region comprising at least four net elements, preferably at least six net elements, preferably at least nine net elements, in particular preferably at least twelve net elements. In particular, due to this design of the safety net, increased security can advantageously be achieved, in particular with regard to the capture of dynamic impact bodies in the safety net. In an advantageous manner, in particular by being able to keep the capture area advantageously large after the impact of the dynamic body, it is possible to enlarge the capture area which can reliably capture the dynamic impact body. The term "at least one partial region projecting beyond the inner region in a direction parallel to the main direction of extension of the security mesh" is to be understood in particular as an outer region. The term "outer region" of the safety net is understood to mean, in particular, at least one partial region of the safety net which forms an overlap over a rectangular region of maximum size of the safety net, which rectangular region is completely covered by the safety net. The outer region preferably comprises at least one net element, preferably a plurality of net elements, which project beyond the minimum extension of the safety net in the main extension direction.

It is furthermore proposed that at least one partial region of the safety net, in particular of the outer regions of the safety net, projects beyond the inner region, in particular projects beyond the total extension of the inner region, in a direction parallel to the main extension direction of the safety net, the partial region comprising a number of net elements arranged side by side in rows in the main extension direction of the safety net, which number corresponds to at least one twentieth, preferably at least one fiftieth, preferably at least one tenth and particularly preferably at least one fifth of the maximum number of net elements of all rows arranged side by side perpendicular to the main extension direction of the safety net. In particular, due to this design of the safety net, increased security can advantageously be achieved, in particular with regard to the capture of dynamic impact bodies in the safety net. In an advantageous manner, in particular by being able to keep the capture area advantageously large after the impact of the dynamic impact body, it is possible to enlarge the capture area which can reliably capture the dynamic impact body.

It is furthermore proposed that at least one partial region of the safety net, in particular of the outer regions of the safety net, projects beyond the inner region, in particular projects beyond the total extension of the inner region, in a direction parallel to the main extension direction of the safety net, which partial region comprises a number of net elements arranged side by side in rows perpendicular to the main extension direction of the safety net, which number 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 the maximum number of net elements of all rows arranged side by side perpendicular to the main extension direction of the safety net. In particular, due to this design of the safety net, increased security can advantageously be achieved, in particular with regard to the capture of dynamic impact bodies in the safety net. In an advantageous manner, in particular by being able to keep the capture area advantageously large after the impact of the dynamic impact body, it is possible to enlarge the capture area which can reliably capture the dynamic impact body. The number of network elements arranged in rows next to one another perpendicular to the main direction of extension of the safety net in the partial region of the safety net projecting beyond the inner region, in particular projecting beyond the total extension of the inner region, in a direction parallel to the main direction of extension of the safety net, preferably corresponds to at least half, preferably at least exactly the number, and preferably at least twice the number, of network elements arranged in rows next to one another parallel to the main direction of extension of the safety net in the partial region.

It is further proposed that at least one partial region of the safety net, in particular of an outer region of the safety net, projects beyond the inner region, in particular beyond the total extension of the inner region, in a direction parallel to the main direction of extension of the safety net, the partial region comprising an at least substantially triangular arrangement of the net elements. In particular, due to this design of the safety net, increased security can advantageously be achieved, in particular with regard to the capture of dynamic impact bodies in the safety net. In an advantageous manner, in particular by being able to keep the capture area advantageously large after the impact of the dynamic impact body, it is possible to enlarge the capture area which can reliably capture the dynamic impact body. The triangular arrangement preferably comprises a substantially triangular shape which tapers at an angle of less than 45 ° in the main extension direction of the safety net. As an alternative to this, the triangular shape can also be a shape substantially of an isosceles triangle and/or a shape of a triangle converging in the main direction of extension of the safety net at an angle greater than 45 °.

It is further proposed that at least one partial region of the safety net, in particular at least one partial region of an outer region of the safety net, comprises at least one net element which deviates significantly from the circumference of the average circumference of the net element outside this partial region, wherein this partial region projects beyond the inner region, in particular beyond the total extension of the inner region, in a direction parallel to the main direction of extension of the safety net. In particular, an advantageous distribution of forces in the safety net can thus be achieved when subjected to a load, so that in particular at least one capturing characteristic of the safety net for capturing at least one dynamic impact body can be optimized. In addition, stability can also be advantageously improved. The "circumference" of the mesh element is understood to mean, in particular, the entire length of the filaments forming the mesh element, which are closed in themselves, in particular the total length of the at least one winding. In the case of a ring, the circumference corresponds to a circle. The term "average circumference" is to be understood here, in particular in this context, as the average of the circumferences of a plurality of randomly selected mesh elements, preferably all mesh elements, of the security mesh, in particular the average of the total length of the filaments of the mesh elements which are closed in themselves, in particular the average of the total length of the windings. A "significant deviation" is to be understood in this context, in particular, to mean that the circumference of at least one web element in the partial region deviates by at least 50%, preferably by at least 30%, preferably by at least 20% and particularly preferably by at least 10%, from the average circumference of the web element outside the partial region. In particular, all network elements of the partial area may comprise substantially the same deviation. As an alternative to this, the network elements of the partial area at least partially comprise different deviations. The network elements in the partial area are preferably at least partially larger than the network elements outside the partial area by at least 10%, preferably by at least 20%, preferably by at least 30% or particularly preferably by at least 50%. Alternatively or additionally thereto, the network elements in the partial area may be at least partially smaller than the network elements outside the partial area by at least 50%, preferably at least 30%, preferably at least 20%, or particularly preferably at least 10%.

It is further proposed that the tear resistance of at least one partial region of the safety net, in particular of at least one partial region of an outer region of the safety net, which projects beyond the inner region, in particular beyond the total extension of the inner region, in a direction parallel to the main direction of extension of the safety net, deviates significantly from the average tear resistance of the net elements outside this partial region under test. In particular when loaded, an advantageous distribution of forces in the safety net can thus be achieved. Advantageously, the response of the net to impacts, in particular to the expected impacts, can be optimized, so that the safety can be improved. By "tear resistance" is understood in particular the maximum possible load of the net element before the net element breaks. The maximum load before breaking can preferably be measured in a test by means of a suitable test device. In the test, a dummy load is applied to the test net element by means of the test device. The test network element provides the same network element as the network element arranged in the partial area. In particular, the test net element originates from the same production batch as the net element, in particular to take into account fluctuations in the material quality. The incremental increase in the load acting on the test net element results in deformation and/or breakage of the test net element under a certain force. The value of the minimum force required to break determines the tear strength. "average tear strength" refers in particular to the average tear strength of a plurality of test net elements of the same design and/or of the same production batch. By "substantially deviating" is meant in this context, in particular, that the tear resistance of at least one net element in a partial region deviates from the average tear resistance of net elements outside the partial region 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%. In particular, all network elements of the partial area may comprise substantially the same deviation. As an alternative to this, the tear resistance of the net elements of the partial region at least partially comprises different deviations. The tear resistance of the net element in this partial region is preferably at least partially greater than the average tear resistance of the net elements outside this partial region by at least 10%, preferably by at least 50%, advantageously by at least 150%, preferably by at least 300% or particularly preferably by at least 500%. Alternatively or additionally to this, the tear resistance of the net element in this partial region may be at least partially at least 500% less, preferably at least 300% less, advantageously at least 150% less, preferably at least 50% less or in a particularly preferred manner at least 10% less than the average tear resistance of the net elements outside this partial region.

It is furthermore proposed that at least one of the web elements, in particular at least one web element of at least one partial region of the safety net, which projects beyond the inner region in a direction parallel to the main direction of extension of the safety net, has a predetermined breaking point, as a result of which forces can advantageously be guided in a targeted manner in the event of an impact. Furthermore, uncontrolled tearing of the safety net can be avoided in an advantageous manner. The predetermined breaking point can be realized in particular as a point having a thinner material thickness than the rest of the net element, as a point of preload, for example due to manual bending back and forth, and/or as a point having a different material composition than the rest of the net element.

It is also proposed that at least one partial region of the security net, in particular at least one partial region of an outer region of the security net, has at least a material composition which differs significantly from the material composition, in particular the average material composition, of the net elements outside the partial region, wherein the partial region projects beyond the inner region, in particular beyond the total extension of the inner region, in a direction parallel to the main extension direction of the security net. In particular, a favorable distribution of forces in the safety net can thus be achieved when subjected to a load, so that in particular at least one capturing characteristic of the safety net for capturing at least one dynamic impact body can be optimized. In addition, stability can also be advantageously improved. A material composition which is "substantially different" from the material composition of the other part means, in particular, that the net element in the partial region has at least one material composition in which the mass fraction of the atoms and/or molecular main constituents deviates from the mass fraction of the same molecules and/or atoms in the material composition of the net element, in particular the average material composition, outside the partial region by at least 0.1 wt.%, preferably by at least 0.5 wt.%, advantageously by at least 1 wt.%, preferably by at least 10 wt.%, or particularly preferably by at least 99 wt.%. "atomic and/or molecular main components" are to be understood in particular as meaning elements and/or molecules which are added to a material in a targeted manner during production, in particular in order to influence at least one material property. In particular, it is conceivable that the net element is composed of different parts with various materials. Advantageously, the mesh element comprises, in particular in a partial region, a coating of, for example, a plastic material. It is further conceivable that the at least one wire element comprises a plurality of wire strands. The wire strands may be realized from the same wire of the same material. As an alternative to this, the wire strands can be realized at least partially from different wires, in particular from wires having various material compositions.

It is furthermore proposed that at least one partial region of the safety net, in particular at least one net element of at least one partial region of an outer region of the safety net, comprises at least one wire winding, in particular a wire strand winding, the wire diameter of which is significantly greater than the average wire diameter of the wire windings, in particular of the wire strand windings, of the net elements outside this partial region, wherein this partial region projects beyond the inner region, in particular beyond the total extension of the inner region, in a direction parallel to the main extension direction of the safety net. In particular, a favorable distribution of forces in the safety net can thus be achieved when subjected to a load, so that in particular at least one capturing characteristic of the safety net for capturing at least one dynamic impact body can be optimized. In addition, stability can also be advantageously improved. A "wire winding" is to be understood to mean, in particular, at least one part of a filament, which describes the circumference of the net element exactly once. A "wire strand winding" is to be understood in particular to mean at least one part of a wire strand which describes the circumference of the net element exactly once. By "average wire diameter" is understood in particular the average value of the wire diameter in a randomly selected plurality of wire elements, preferably all wire elements of the security net, in particular in a vertical cross section through the wires, in particular outside the partial region. Preferably, the wire diameter is the diameter of the smallest circle that can be placed around the cross section of the filament, in particular the wire, and in this case the smallest circle completely surrounds the filament, in particular the wire. The term "average wire strand diameter" is understood to mean, in particular, the average of the wire strand diameters in a randomly selected plurality of wire elements, preferably all wire elements of the security net, in particular in a vertical cross section through the wire strands, which are in particular outside the partial region. The wire strand diameter is preferably the diameter of the smallest circle that can be placed around the cross section of the wire strand and in this case completely surrounds all wire windings. The term "substantially greater than" is understood in this context to mean, in particular, a diameter of greater than at least 10%, preferably at least 20%, advantageously at least 30%, preferably at least 50%, particularly preferably at least 100%.

It is furthermore proposed that at least one network element of at least one partial region of the safety net, in particular of an outer region of the safety net, comprises at least a plurality of wire windings, in particular wire strand windings, the number of which deviates significantly from the average number of wire windings, in particular wire strand windings, of the net elements outside the partial region, wherein the partial region projects beyond the inner region, in particular beyond the total extension of the inner region, in a direction parallel to the main extension direction of the safety net. In particular, an advantageous distribution of forces in the safety net can thus be achieved when subjected to a load, so that in particular at least one capturing characteristic of the safety net for capturing at least one dynamic impact body can be optimized. In addition, stability can also be advantageously improved. By "average number of wire windings" is understood in particular an average of the number of randomly selected mesh elements of the safety mesh, preferably all mesh elements, in particular outside the partial region, wire windings. By "average number of wire strand windings" is understood in particular an average value of the number of wire strand windings of a randomly selected plurality of mesh elements, preferably all mesh elements, of the safety mesh, in particular outside the partial region. A "significant deviation" is to be understood in this context in particular to mean that the number of wire windings, in particular wire strand windings, of at least one wire mesh element in a partial region deviates by at least 200%, preferably by at least 100%, preferably by at least 50%, particularly preferably by at least 10%, from the average number of wire windings, in particular wire strand windings, outside the partial region. In particular, all network elements of a partial area may comprise substantially the same deviation. As an alternative to this, the network elements of the partial area at least partially comprise different deviations. The number of wire windings, in particular wire strand windings, of the mesh element in the partial region is preferably at least partially at least 10% greater, preferably at least 50% greater, preferably at least 100% greater and particularly preferably at least 200% greater than the number of wire windings, in particular wire strand windings, of the mesh element outside the partial region. Alternatively or in addition to this, the number of wire windings, in particular wire strand windings, in a partial region may be at least partially at least 200% less, preferably at least 100% less, preferably at least 50% less or particularly preferably at least 10% less than the number of wire windings, in particular wire strand windings, of the mesh element outside the partial region.

It is further proposed that at least one network element of at least one partial region of the safety net, in particular of at least one partial region of an outer region of the safety net, comprises at least one energy absorber, wherein the partial region projects beyond the inner region, in particular beyond the total extension of the inner region, in a direction parallel to the main direction of extension of the safety net. In particular, an advantageous distribution of forces in the safety net can thus be achieved when subjected to a load, so that in particular at least one capturing characteristic of the safety net for capturing at least one dynamic impact body can be optimized. In addition, stability can also be advantageously improved. An "energy absorber" is to be understood to mean, in particular, an element which is provided to convert at least a part of the kinetic energy of a dynamic impact body into at least one energy form which differs from the kinetic energy, for example potential energy and/or thermal energy, in particular deformation energy and/or internal friction, in particular when the dynamic impact body impacts into a safety net. In particular, the energy absorber, which may comprise at least one torsion spring, may be arranged in particular between at least two net elements and/or between at least one net element and at least one suspension, such as a cable.

It is also proposed that the energy absorber is realized in one piece with the at least one net element. Thus, a simple design of the energy absorber in particular can be advantageously achieved. Furthermore, a simple assembly and/or integration of the energy absorber in the safety net can be advantageously achieved. In particular, the energy absorber may be realized as a web element which is at least partially corrugated and/or pleated, and in particular provided for the purpose of stretching under load. As an alternative to this, it is conceivable that at least a part of the net element is bent in the form of a torsion spring and/or is replaced by a torsion spring.

It is furthermore proposed that at least one net element, in particular a net element of at least one partial region in at least one partial region of the safety net, preferably in an outer region of the safety net, realizes exactly three connection regions with adjacent net elements, wherein the partial regions project beyond the inner region, in particular beyond the total extension of the inner region, in a direction parallel to the main extension direction of the safety net. In particular, an advantageous design of the safety net can thus be achieved, so that the safety can be advantageously increased, in particular with regard to the capture of dynamic impact bodies in the safety net. By means of an advantageous design, in particular by being able to keep the capture area advantageously large after the impact of the dynamic impact body, it is advantageously possible to enlarge the capture area which can reliably capture the dynamic impact body. A "connecting region" is to be understood to mean, in particular, a region of web elements and/or web components, in particular web element bundles, which are arranged one above the other in a concentric manner in the security net, wherein, in particular in the assembled security net, the web elements and/or web components, in particular the web element bundles, overlap at least one adjacent web element and/or at least one adjacent web component and/or at least one web element bundle. In particular, the net elements and/or adjacent net elements may be realized as individual net elements and/or net members, in particular as a bundle of net elements. Preferably, the net element and/or the net member, in particular the net element bundle, overlaps with exactly one net element and/or exactly one net member, in particular exactly one net element bundle, in the connecting region. In particular in the case of a safety net in the unfolded state, the at least two connection regions are preferably arranged diametrically opposite to each other with respect to the net element. In particular, the connection regions each comprise a center of gravity. The centers of gravity of the connecting regions are arranged at an angle of more than 30 °, preferably more than 45 °, advantageously more than 60 °, preferably more than 75 ° and particularly preferably more than 85 ° relative to one another, when viewed from the center point of the net element comprising exactly three connecting regions, in particular in the unfolded state of the safety net. In particular, each connection area of the net element is realized so as not to overlap with each further connection area of the net element. The at least one further network element of the safety net adjacent to the network element having exactly three connection areas preferably comprises exactly three connection areas, in particular in the case of a fully unfolded state of the safety net. Preferably, in particular in the case of a safety net in the fully extended state, the at least two additional further network elements of the safety net adjacent to the network element having exactly three connection areas comprise exactly three connection areas.

Furthermore, a net and rope arrangement with at least one safety net according to the invention is proposed. Thus, a high degree of safety and/or advantageous performance in the event of an impact can advantageously be achieved. The net and rope arrangement is preferably a wire mesh and wire rope arrangement. The net and rope arrangement may be, for example, a rockfall protection, a racing fence, a catch fence, a road safety net and/or a rail safety net, an avalanche net, a bullet catch net, a vehicle safety fence, in particular an aircraft safety fence, a test rail safety net, etc.

The net and rope arrangement advantageously comprises at least one guide rope which is guided through at least every third, preferably every fourth, net element of a row of net elements which extends parallel to the main extension direction of the safety net on at least one outer edge of the safety net. The guide cords advantageously determine the freedom of movement of the net element. In particular in the event of impacts, it is advantageously possible to buffer the impacts, in particular due to the movement of at least part of the network elements of the safety net in a directed manner. The guide rope is in particular realized as a wire rope. In particular, the guide rope is connected to at least one support, preferably to at least two supports, of the net and cable structure. In particular, a support is provided for holding and/or suspending the safety net. Preferably, the support may be fastened on at least one side to the base and/or to the wall, preferably to the rock wall. Particularly preferably, the main extension of the support extends in a state fastened to the base and/or the wall, preferably the rock wall, particularly substantially perpendicular to the direction of gravity from the fastening point. The term "at least every third" is understood to mean, in particular, that in a row of adjacent net elements, in particular on the outer edge of the safety net, each net element through which no guide rope passes comprises no more than one adjacent net element of the row through which no guide rope passes either. In particular, the net elements of the row do not have three consecutive adjacent net elements (without the guide rope passing through). The term "at least every other" is understood to mean in particular that in a row of adjacent net elements, in particular on the outer edge of the safety net, each net element through which no guide rope passes comprises the net element through which the only adjacent guide rope of the row passes. In particular, the net elements of the row are free of two consecutive adjacent net elements (through which no guide rope passes). The outer edge of the safety net is realized in particular by the side of the outermost row of net elements without adjacent net elements. The net and rope arrangement preferably comprises at least one guide rope on at least two mutually different outer edges.

It is furthermore proposed that the guide line is embodied as at least one supporting line which is provided in particular for supporting the safety net and/or, in the event of a load, in particular due to debris and/or at least one further dynamic impact body, for absorbing at least a substantial part of the load and/or preferably for transmitting it to the at least one support. In this way, a simple design can be advantageously achieved, in particular by omitting additional guide lines, running cables and/or additional suspension elements. This advantageously results in cost savings, in particular in terms of assembly costs and/or material costs. The support line is preferably realized as a wire rope. Furthermore, it is conceivable that the support line is realized as a cable bundle consisting of at least two support lines, whereby the safety and/or stability can be further improved.

The safety net according to the invention can advantageously be used as a catch net in net and rope constructions. The net and rope arrangement preferably comprises a plurality of safety nets which are connected together, in particular by means of cables (preferably support ropes) and/or shackles.

In this respect, the safety net according to the present invention is not limited to the above-described applications and embodiments. In particular, in order to implement the operating principles described herein, the safety net according to the invention can comprise a number of separate elements, components and units different from the number specified herein.

Drawings

Further advantages can be derived from the following description of the figures. Six exemplary embodiments of the present invention are shown in the drawings. The figures, description and claims include many combinations of features. The expert will also look at the features independently in an advantageous way and combine them to form a reasonable further combination. Furthermore, in the case of numerical ranges specified in the disclosure, numerical values that also fall within the specified limits apply as disclosed and as applicable.

The attached drawings are as follows:

figure 1 shows a schematic top view of a security net,

figure 2 shows a schematic top view of an alternative safety net,

figure 3 shows a schematic top view of a further alternative safety net,

figure 4 shows a schematic cross-sectional view of a mesh element through a portion of a security mesh,

figure 5 shows a schematic top view of a part of a net and rope arrangement with a safety net,

figure 6 shows a schematic view of a part of a net element having a predetermined breaking point,

figure 7 shows a schematic view of an alternative net member with an energy absorber,

figure 8 shows a schematic cross-sectional view of a mesh element through a portion of an alternative safety mesh,

figure 9 shows a schematic cross-sectional view of a mesh element through a portion of a further alternative safety mesh,

FIG. 10 shows a schematic cross-sectional view of a net element through a portion of an additional alternative safety net, an

FIG. 11 shows a schematic top view of a second additional alternative safety net.

Detailed Description

FIG. 1 illustrates a security net. The safety net is unfolded along the main extension plane 28 a. The safety net is used to capture heavy loads. The security net is formed by the net elements 10 a. The mesh element 10a is realized as a loop 102 a. The net elements 10a are implemented substantially identically. Mesh element 10a includes a mesh element diameter 88 a. The mesh element 10a is joined in an adjacent mesh element 10 a. Two interconnected network elements 10a realize the connection areas 56a, 58a, 60 a. At least one net element 10a of the safety net realizes exactly three connection regions 56a, 58a, 60a to adjacent net elements 10 a. The net elements 10a realize adjacent rows of net elements 10a perpendicular to the main direction of extension 14a of the security net. The net elements 10a of a row do not overlap each other. The net elements 10a of one row overlap the net elements 10a of an adjacent row. The net elements 10a of one row engage with the net elements 10a of an adjacent row. It is conceivable that at least one web element 10a comprises a predetermined breaking point 40a (see fig. 6).

The security net includes an outer region 18 a. The outer zone 18a includes the outermost row 16a of network elements 10 a. The outer zone 18a comprises two rows of network elements 10 a. The outer zone 18a extends over all of the net elements 10a of the outermost row 16 a. The outer zone 18a extends over all of the net elements 10a of the other row 90a than the outermost row 16 a. The safety net includes a maximum overall extension 94 a. The maximum overall extension 94a extends parallel to the main direction of extension 14a of the safety net. The safety net comprises a maximum overall extension 12a located inside the outer zone 18 a. The maximum total extension 12a located within the outer zone 18a and the maximum total extension 94a of the safety net are identical to each other.

The security net includes a further outer region 26 a. The further outer region 26a is realized differently from the outer region 18 a. The further outer region 26a and the outer region 18a do not overlap each other. The further outer zone 26a extends over all net elements 10a of the further outermost row 96 a. The further outer zone 26a extends over all net elements 10a of the additional row 98a, which is different from the further outermost row 96 a. The safety net includes a maximum total extension 70a located inside the further outer region 26 a. The maximum total extension 70a located in the further outer region 26a and the maximum total extension 94a of the safety net are identical to one another.

The security net includes an interior region 22 a. The inner region 22a does not overlap the outer region 18a and the further outer region 26 a. The inner zone 22a includes the inner row 92a of network elements 10 a. The inner zone 22a includes the net elements 10a of the other inner row 118a adjacent to the inner row 92 a. Inner row 92a is located at the center of the security net. The inner row 92a is located between the outermost row 16a and the other outermost row 96 a. The safety net includes a minimum overall extension 100 a. The minimum overall extension 100a extends parallel to the main direction of extension 14a of the safety net. The security mesh includes a minimum overall extent 20a located within interior region 22 a. The minimum overall extension 20a located within the interior region 22a and the minimum overall 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 zones 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 zone 22 a. The maximum total extension 12a located in the outer region 18a, 26a and/or the maximum total extension 94a of the safety net is greater than the average diameter of the network elements 10a of the safety net at least by the minimum total extension 20a located in the inner region 22a and/or by the minimum total extension 100a of the safety net. In the exemplary embodiment shown in fig. 1, the average diameter of mesh element 10a corresponds to mesh element diameter 88 a. The difference in size between the maximum total extension 12a, 94a and the minimum total extension 20a, 100a is greater than four times the mesh element diameter 88 a. It is conceivable that at least one of the web elements 10a comprises a predetermined breaking point 40a in the outer region 18a, the further outer region 26a and/or the inner region 22 a.

The security net comprises two mirror planes 30a, 32 a. The mirror planes 30a, 32a are arranged perpendicular to the main extension plane 28a of the security net. A mirror plane 30a is perpendicular to the main extension direction 14 a. A mirror plane 32a is parallel to the main extension direction 14 a. The net elements 10a are arranged in a mirror-symmetrical manner with respect to the mirror planes 30a, 32 a. The safety net comprises a constant total extension 104a perpendicular to the main extension direction 14a in a direction lying in the main extension plane 28 a.

The safety net comprises four partial regions 34a, 36a, 42a, 44a, which project beyond the smallest overall extension 20a of the interior region 22a in a direction parallel to the main extension direction 14a of the safety net. The partial regions 34a, 36a, 42a, 44a comprise six web elements 10 a. The partial regions 34a, 36a, 42a, 44a of the safety net comprise a plurality of net elements 10a arranged side by side in rows along the main direction of extension 14a of the safety net, the number of which corresponds to two seventeen-percent of the maximum number of net elements 10a of all rows arranged side by side perpendicularly to the main direction of extension 14a of the safety net. The partial regions 34a, 36a, 42a, 44a of the safety net comprise a plurality of net elements 10a arranged side by side in rows perpendicular to the main direction of extension 14a of the safety net, the number of which corresponds to two seventeen-percent of the maximum number of net elements 10a of all rows arranged side by side perpendicular to the main direction of extension 14a of the safety net. The partial regions 34a, 36a, 42a, 44a of the safety net comprise a triangular arrangement 46a of network elements 10 a. As an alternative to this, at least one of the partial regions 34a, 36a, 42a, 44a may comprise a different arrangement than the triangular arrangement 46a, for example an at least rectangular arrangement 120a (see fig. 2) and/or an at least partially polygonal arrangement. In tests, the tear resistance of the web element 10a in the partial regions 34a, 36a, 42a, 44a of the security net differs from the average tear resistance of the web elements 10a outside the partial regions 34a, 36a, 42a, 44 a. As an alternative to this, all the net elements 10a may have substantially the same tear strength under test. It is conceivable that at least one web element 10a comprises a predetermined breaking point 40a in at least one of the partial regions 34a, 36a, 42a, 44 a. As an alternative to this, the security net may be implemented as a mesh network 122a (see fig. 3). Mesh network 122a is implemented with inter-engaging spiral 124 a. At the end, the helix 124a includes at least one knot 128a forming a loop 126 a. The loops 126a of adjacent spirals 124a fit together. The safety net realized by the screws 124a comprises four partial regions 34'a, 36' a, 42'a, 44' a which project beyond the minimum overall extension 20a of the interior region 22a in a direction parallel to the main extension direction 14a of the safety net. The partial regions 34' a, 36' a, 42' a, 44' a of the safety net realized by the screws 122a comprise a rectangular arrangement 120' a of the net elements 10 a.

FIG. 4 shows a cross-section through a portion of a safety net along a cross-sectional axis A (see FIG. 1). The net element 10a shown on the left-hand side of fig. 4 is located inside the partial region 36 a. The net element 10a shown on the right-hand side of fig. 4 is located outside the partial area 36 a. The net element 10a shown in fig. 4 is implemented as a wire rope 106 a. Mesh element 10a includes a mesh element cross-sectional diameter 86 a. Mesh element cross-sectional diameter 86a is constant over perimeter 72a of mesh element 10 a. The wire rope 106a includes a plurality of wire windings 48 a. The wire winding 48a includes a wire diameter 24 a. The wire diameter 24a is constant over the perimeter 72 of the mesh element 10 a. Mesh element cross-sectional diameter 86a corresponds to a multiple of wire diameter 24 a. Mesh element 10a includes wire strands 108 a. The wire strand 108a includes 19 wire windings 48 a. The wire strand 108a includes a wire strand diameter 52 a. The wire strand diameter 52a is constant over the circumference 72a of the mesh element 10 a. Mesh element cross-sectional diameter 86a corresponds to a multiple of wire strand diameter 52 a. The mesh element 10a includes seven wire strand windings 50 a.

Fig. 5 shows a portion of a net and rope arrangement 62a with a safety net. The safety net serves as a capture net 74a in the net and rope arrangement 62 a. The capture net 74a is configured to capture dynamic impact bodies in the capture area 38a of the capture net 74 a. The capture net 74a is positioned such that the primary impact direction of the dynamic impactor is perpendicular to the capture area 38 a. The main impact direction of the dynamic impact body is directed in fig. 5 into the image plane or out of the image plane. The net elements 10a of the partial regions 34a, 36a, 42a, 44a are pushed together in the assembled, unloaded state. The net element 10a of the safety net located outside in the main extension direction 14a at least partially comprises a shackle 82 a. The network elements 10a of the safety net are shackle-connected with the network elements 10a of the further neighbouring safety net by means of shackles 82 a. The net and rope structure 62a includes a support 80 a. The net and rope structure 62a includes wall fastening elements 78 a. Wall fastening elements 78a are provided for fastening the support 80a to the wall 76 a.

The net and rope arrangement 62a includes a first guide rope 64 a. The first guide rope 64a is arranged on the side of the safety net remote from the wall 76a, in particular remote from the wall fastening element 78 a. The first guide cord 64a is arranged on the side of the support 80a remote from the wall 76a, in particular remote from the wall fastening element 78 a. The first guide cord 64a is connected to the support 80 a. The net and rope arrangement 62a includes a second guide rope 84 a. A second guide cord 84a is arranged on the side of the safety net remote from the wall 76a, in particular remote from the wall fastening element 78 a. The second guide cord 84a is arranged on the side of the support 80a remote from the wall 76a, in particular remote from the wall fastening element 78 a. The second guide cord 84a is connected to the support 80 a.

The safety net comprises two outer edges 66a, 110a in a direction perpendicular to the main direction of extension 14a of the safety net. The mesh elements 10a on the outer edges 66a, 110a form two outermost rows 16a, 96 a. The first guide rope 64a is guided through the net elements 10a of the outermost row 16 a. The second guide cord 84a is guided through the net elements 10a of the further outermost row 96 a. First guide cord 64a is implemented as support cord 68 a. Second guide cord 84a is implemented as support cord 68 a.

Fig. 7 to 11 show five further exemplary embodiments of the present invention. The following description and the figures are substantially limited to the differences between the exemplary embodiments, it also being possible in principle for identically designated parts, in particular parts having the same reference numerals, to refer to the description of the figures and/or the further exemplary embodiments, in particular to the description of fig. 1 to 6. To distinguish between the exemplary embodiments, the letter a is placed after the reference numerals of the exemplary embodiments of fig. 1-6. In the exemplary embodiment of fig. 7 to 11, the letter a is replaced by letters b to f.

Fig. 7 shows a net element 10 b. The mesh element 10b includes an energy absorber 54 b. The energy absorber 54b is implemented integrally with the net element 10 b. Energy absorber 54b is implemented as a wave shaped region of network element 10 b. As an alternative to this, the energy absorber 54b can be realized as a region of the net element 10b, in particular helically twisted, and/or as a region having a material, in particular a highly elastic material, which is different from the rest of the net element 10 b. The mesh element 10b includes an additional energy absorber 112 b. The further energy absorber 112b is implemented separately from the net element 10 b. A further energy absorber 112b is arranged between two adjacent, non-overlapping net elements 10 b. The further energy absorber 112b is realized as a highly elastic bending element. The network elements 10b with the energy absorbers 54b, 112b are arranged in partial regions 34b, 36b, 42b, 44b of the security net. As an alternative to this, it is conceivable for the network element 10b with the energy absorbers 54b, 112b to be arranged in a region of the safety net which is different from the partial regions 34b, 36b, 42b, 44b, for example an inner region 22b and/or an outer region 18b, 26b of the safety net which is different from the partial regions 34b, 36b, 42b, 44 b.

The detail of the safety net shown in a sectional view in fig. 8 shows two net elements 10 c. The net element 10c shown on the left-hand side of fig. 8 is located inside the partial region 36 c. The net element 10c shown on the right-hand side of fig. 8 is located outside the partial area 36 c. The net element 10c inside the partial region 36c comprises a number of wire windings 48c which is different from the number of wire windings 48c of the net element 10c outside the partial region 36 c. The mesh element 10c inside the partial region 36c comprises a greater number of wire windings 48c than the mesh element 10c outside the partial region 36 c. As an alternative to this, it is conceivable that the net element 10c inside the partial region 36c comprises a smaller number of wire windings 48c than the net element 10c outside the partial region 36 c. Mesh element 10c includes wire strands 108 c. The wire strand 108c includes a plurality of wire strand windings 50 c. The wire strand winding 50c includes a wire strand diameter 52 c. The wire strand diameter 52c of the mesh element 10c in the partial region 36c is greater than the wire strand diameter 52' c of the mesh element 10c outside the partial region 36 c. As an alternative to this, the wire strand diameter 52c of the wire element 10c in the partial region 36c can be larger than the wire strand diameter 52' c of the wire element 10c outside the partial region 36 c.

The detail of the safety net shown in a sectional view in fig. 9 shows two net elements 10 d. The net element 10d shown on the left-hand side of fig. 9 is located within a partial region 36d of the safety net. The net element 10d shown on the right-hand side of fig. 9 is located outside the partial area 36 d. The mesh element 10d includes a wire winding 48 d. The wire winding 48d includes a wire diameter 24 d. The wire diameter 24d of the wire winding 48d inside the partial region 36d is larger than the average wire diameter 24'd of the wire winding 48d of the net element 10d outside the partial region 36 d. As an alternative to this, it is conceivable that the wire diameter 24d of the wire winding 48d is comprised in the wire element 10d inside the partial region 36d to be smaller than in the wire element 10d outside the partial region 36 d. Mesh element 10d includes a mesh element cross-sectional diameter 86 d. The mesh element cross-sectional diameter 86d of the mesh element 10d inside the partial region 36d is greater than the mesh element cross-sectional diameter 86'd of the mesh element 10d outside the partial region 36 d. As an alternative to this, the net element cross-sectional diameter 86d of the net element 10d inside the partial region 36d may be smaller than the net element cross-sectional diameter 86'd of the net element 10d outside the partial region 36 d.

The detail of the safety net shown in a sectional view in fig. 10 shows two net elements 10 e. The network element 10e shown on the left-hand side of fig. 10 is located inside a partial region 36e of the security net. The network element 10e shown on the right-hand side of fig. 10 is located outside the partial area 36 e. The network element 10e in the partial region 36e has a material composition 114 e. The material composition 114e of the network element 10e in the partial region 36e differs from the material composition 114' e of the network element 10e outside the partial region 36 e.

Fig. 11 shows a safety net with net elements 10 f. Mesh element 10f includes a perimeter 72 f. Mesh element 10f includes a profile 116 f. The perimeters 72' f, 72"f of the network elements 10f inside the partial regions 34f, 42f of the safety net deviate significantly from the average perimeter 72f of the network elements 10f outside the partial regions 34f, 42 f. The circumference 72' f of the net element 10f in the partial region 34f is smaller than the circumferences 72f, 72 ″ f of the net elements 10f outside the partial region 34 f. The circumference 72"f of the net element 10f in the partial region 42f is greater than the circumferences 72f, 72' f of the net elements 10f outside the partial region 42 f. The profile 116' f, 116 "f of the network element 10f in the part areas 34f, 42f deviates significantly from the average profile 116f of the network element 10f outside the part areas 34f, 42 f.