DK2019169T3 - FLOORING ELEMENTS, FLOORING GRIDS AND ARRANGEMENTS OF FLOORING GRATES, AS WELL AS MANUFACTURING PROCEDURE FOR A FLOORING GRID - Google Patents

Description

Specification [0001] The invention proceeds from a floor covering grid, in particular to form a fall protection covering, according to the preambles of claims 1 and 8.

[0002] Floor coverings, in particular fall protection coverings, are known in the art. Further known for such coverings are covering elements or plates, which in particular exhibit a fall protection function, i.e., the covering acts to absorb the energy of a force acting perpendicularly on the surface of the covering, so that a falling individual—for example a child on a public or private playground—experiences comparatively low acceleration forces when impacting the covering. The risk of injury drops as does the acceleration force. The disadvantage to known coverings is that the latter require the installation of a cost-intensive substructure and/or almost completely cover a vegetative, natural floor under the covering. Known fall protection coverings further exhibit flexible bridge sections, wherein a sagging of the latter yields the energy-absorbing effect given exposure to a force. This permanent load on the bridge sections significantly lowers the life of the covering.

[0003] Known from DE 85 27 295 U1 is a vegetation checker block, which can be composed of a plurality of web-shaped first and second floor covering elements. The individual floor covering elements exhibit insertion slots with a grid spacing that extend over half the height of the floor covering element. If the first and second floor covering elements are arranged perpendicularly to each other so as to intersect, they can completely engage into each other with their insertion slots. In this way, the first and second floor covering elements can be assembled to yield a vegetation checker block. The vegetation checker block in DE 85 27 295 U1 discloses all features in the introductory parts to product claims 1 and 8.

[0004] Therefore, the object of the invention is to provide a floor covering grid comprised in particular of floor covering elements and an arrangement of floor covering grids that does not exhibit the disadvantages of prior art, is simultaneously cost-effective to manufacture, and can be universally used due to a variable push-fit system.

[0005] This object can be achieved using a floor covering element to create a floor covering grid, which exhibits a first partial area forming a first side and a second partial area forming a second side, wherein the floor covering element exhibits a main extension direction parallel to the first and second side, and wherein the first partial area exhibits at least one recess that interrupts the course of the first side and the second partial area has a third partial area overlapping the recess in a direction perpendicular to the main extension direction. By assembling a plurality of such floor covering elements, this advantageously provides an easy and cost-effective way to create a floor covering grid, wherein both the first and second sides of a floor covering element represent the visible side of the floor covering grid, depending on the arrangement of floor covering elements. Varying the height of the floor covering element parallel to the perpendicular direction makes it possible to vary the fall protection capacity of the floor covering, since the quantity or thickness of the energy-absorbing material varies relative to a perpendicular exertion of force on the covering. In addition, the fall protection capacity, optical effect and/or water permeability of the floor covering can be set by adjusting the distance between the recesses in the main extension direction, wherein a floor covering element with a plurality of recesses each exhibiting a constant distance from each other is preferably provided. The number of recesses of a floor covering element is freely selectable, for example, with at least two, at least 6 or at least 10 recesses, preferably 13 or 14 recesses, being provided in a floor covering element.

[0006] It is especially preferred that the length of the recess parallel to the main extension direction be essentially identical to the width of the third partial area perpendicular to the main extension direction and to the perpendicular direction, wherein it is especially preferred that the entire floor covering element exhibit the constant width of the third partial area. A positive connection between a plurality of floor covering elements is thereby advantageously realized while forming a floor covering grid, which significantly increases the stability, in particular the torsional rigidity, of the floor covering grid. In addition, varying the width of the floor covering element enables a further adjustment of the fall protection capacity, optical effect and/or water permeability of the floor covering. An elastic material is preferably used, so that exerting a force on the floor covering element causes a reversible deformation of the latter, e.g., when a child falls on the floor covering or when an individual walks onto the floor covering. This reversible deformation of the floor element is provided for reducing an acceleration stress, e.g., during impact of the falling child, so that the floor covering element can be used in particular as an element of a fall protection covering. At the same time, the material exhibits the kind of tread resistance that prevents damage or irreversible deformation to the floor covering element, for example due to the floor element breaking or tearing, when walked on by individuals or a plurality of individuals. In particular, the floor covering element is made out of a weather-resistant material, so that the floor covering element can be used outside, i.e., outdoors, and withstands the usual environmental influences, such as temperature fluctuations, humidity and solar radiation without any reduction in fall protection capacity, for example for at least a plurality of years, i.e., the floor covering element outdoors preferably exhibits at least the usual average life of known outdoor floorings, in particular plastic outdoor floorings.

[0007] It is further especially preferable that the floor covering element exhibit an overall length parallel to the main extension direction of 0.1 to 20 meters, preferably 0.2 to 10 meters, and especially preferably 0.25 to 3 meters. Such length units of the floor covering elements ensure comparatively easy handling, and thus facilitate the process of assembling the floor covering elements. In addition, floor covering elements of these lengths can be transported in a cost-effective manner.

[0008] These possible options for adjusting the fall protection capacity are of considerable importance for using the floor covering in public places, in particular with access for children and in particular at playgrounds, since the fall protection coverings installed there in accordance with European Standard EN1177 exhibit an especially good value in terms of falling. The energy absorption capacity of a floor covering grid assembled out of the floor covering elements according to the invention or of an arrangement of floor covering grids is measured by means of a so-called HIC (head injury creation) value, which in particular correlates with the acceleration of a falling body upon impact. Critical here according to the specified standard is that the fall height be as high as possible given an HIC value of 1000. This can be easily and cost-effectively achieved with the floor covering element or floor covering grid and arrangement of floor covering grids according to the invention, wherein the mentioned options for adjusting the fall protection capacity make it possible to set an optimal correlation between fall protection capacity, manufacturing costs, surface design and stability as a function of demands placed on the floor covering.

[0009] One subject of the invention is a floor covering grid according to claim 1 with a variety of the floor covering elements described above, wherein a plurality of first floor covering elements are arranged adjacent and parallel to each other in a first direction, and a plurality of second floor covering elements are arranged adjacent and parallel to each other in a second direction perpendicular to the first direction in such a way that the third partial areas of the first floor covering elements engage into the recesses of the second floor covering elements. By comparison to prior art, the advantage to this grid arrangement, in which the first or second side of the first floor covering element and the second or first side of the second floor covering elements comprise the visible side of the floor covering grid, is that an aesthetic and natural effect of the floor covering is achieved by filling the free spaces in the grid with a fill material and/or overgrowing the grid, e.g., with grass, meadows and/or plants, without limiting the fall protection capacity. In particular sand and/or soil are provided as the fill materials, thereby simultaneously fixing the floor covering grid against exposure to horizontal forces on the floor covering grid. Such a naturally appearing floor covering, which at the same time exhibits a maximum fall protection capacity, is of great importance in particular as relates to use in playgrounds, public places, parks and/or gardens. A vegetative overgrowth of the floor covering grid is also facilitated by the comparatively good water permeability of the floor covering grid. It is further advantageous that, in contrast to prior art, no cost-intensive substructure is required for the floor, in particular since the risk of washout is significantly reduced when using a grid structure. Another advantage is that the fall protection effect is achieved by deforming the floor covering elements themselves, so that no undercut structures are required, which would have distinctly shorter lives owing to the permanent bending load.

[0010] In at least one edge area of the floor coating grid according to the invention, floor covering elements project out of the regular grid arrangement in such a way that at least one free recess of the first and/or second floor covering elements project out of the floor covering grid, wherein one edge side exhibits a second floor covering element projecting with a free recess, and the edge side perpendicular thereto exhibits a first floor covering element projecting with a free recess, and that the first and/or second floor covering elements are offset relative to each other parallel to the second and/or first floor covering elements, wherein only second floor covering elements with free recesses preferably project on the one edge side, while first floor covering elements with free recesses project on an opposing edge side. This arrangement advantageously makes it especially easy to fit several floor covering grids into each other with minimal additional material outlay, so that the latter are fixed in relation to each other against relative movements, and a floor covering grid completely enveloped by other floor covering grids is prevented from detaching in an arrangement of a variety of floor covering grids. In particular, no additional fastening elements are required, which would incur further manufacturing costs. Preferably only one free recess, and especially preferably two free recesses, of a floor covering element project, wherein a third area of other floor covering elements engage into all remaining recesses of the same floor covering elements. Provided in particular is a flooring grid that exhibits two to twenty, and preferably six to sixteen, first flooring elements, and two to twenty, and preferably six to sixteen, second flooring elements. The floor recesses in the floor covering grid formed by a respective two first and two second floor covering elements preferably have a rhomboid, rectangular and/or especially preferably square design in a main extension direction of the floor covering grid, wherein the edge lengths of the square floor recesses preferably measure 0.5 to 50 centimeters, especially preferably 1 to 20 centimeters, and very especially preferably 1.5 to 15 centimeters.

[0011] Another subject of the present invention involves arranging the floor covering grids according to the invention in such a way that at least two floor covering grids exhibit a shared edge area, wherein fourth partial areas of a floor covering element of the first floor grid projecting in the edge area engage into the projecting recesses of a floor covering element of the second floor grid. As a consequence, any outer shape desired can be especially advantageously realized in an easy manner for a floor covering by arranging the floor covering grids according to the invention.

[0012] It is especially preferred that the arrangement of floor covering grids according to the invention or the floor covering grid according to the invention exhibit an edge frame, wherein the edge frame is preferably designed in such a way as to prevent individual floor covering grids from detaching. In this way, the floor covering is advantageously safeguarded against detaching from the edge frame and/or from the arrangement of floor covering grids in an unauthorized and/or inadvertent manner.

[0013] In particular in a floor covering grid according to one of the preceding embodiments, it is very especially preferably provided that the area of a recess and a third partial area suspended therein encompass a non-positive, positive and/or integral connection between the recess and third partial area. This especially advantageously results in a mechanically stable connection between the floor covering elements.

[0014] Another subject of the present invention relates to a floor covering grid element according to claim 8, with a main extension direction, a plurality of first struts and a plurality of second struts arranged perpendicular to the first struts, wherein the first struts exhibit first suspension recesses in the area of a first edge side of the floor covering grid elements, and wherein the second struts exhibit second suspension recesses in the area of a second edge side of the floor covering grid element opposite the first edge side in the main extension direction, and wherein the floor covering grid element is further fabricated as a single piece with the plurality of first struts and plurality of second struts. This especially advantageously enables the formation of a floor covering with an aesthetic and natural effect by filling the free space of the grids with the fill material and/or by marbling or overgrowing the grid, which simultaneously exhibits a maximum fall protection capacity with the advantages cited above. Preferably manufacturing the floor covering grid element as a single piece out of the first and second struts makes it possible to significantly accelerate and simplify the process of manufacturing the floor covering grid element, since the first and second struts are preferably fabricated at the same time to yield the floor covering grid element. This makes the manufacturing process distinctly more cost-effective.

[0015] A preferred further development provides that the first struts exhibit third suspension recesses in the area of a third edge side of the floor covering grid element, wherein the second struts exhibit a fourth suspension recess in the area of a fourth edge side of the floor covering grid element opposite the third edge side in the main extension direction, and/or that the first and/or third suspension recess are open in the direction of a first direction parallel to a surface normal of the main extension direction, wherein the second and/or fourth suspension recesses are open in the direction of a second direction running antiparallel to the first direction. This especially preferably makes it possible to manufacture a floor covering out of a plurality of floor covering grid elements, which in particular are suspended in each other with the corresponding suspension recesses, so as to prevent the floor covering from slipping in a comparatively easy manner and with the advantages mentioned above during the manufacture and use of the floor covering.

Another subject matter of the present invention relates to an arrangement of floor covering grid elements, wherein at least one first floor covering grid element with the first and/or third suspension recesses engages into the second and/or fourth suspension recesses of a second floor covering grid element. This especially advantageously makes it possible to comparatively easily and hence cost-effectively realize the formation of a floor covering out of a plurality of floor covering grid elements, wherein the floor covering grid elements reciprocally fix themselves in place, and thereby prevent the floor covering grid elements from slipping relative to each other. In addition, individual floor covering grid elements are prevented from detaching from the floor covering by suspension recesses that engage into each other.

[0015] Another subject matter of the present invention relates to methods for manufacturing a floor covering grid according to the invention, wherein the floor covering elements are manufactured in a first procedural step, wherein the first floor covering elements are arranged next to each other, parallel to each other, and preferably offset relative to each other, in a second procedural step, and wherein the second floor covering elements are arranged next to each other, parallel to each other, and preferably offset to each other and especially preferably perpendicular to the first floor covering elements on the first floor covering elements in a third procedural step, in such a way that the third partial areas and/or recesses of the second floor covering elements engage into the recesses and/or third partial areas of the first floor covering elements. This especially advantageously makes it possible to easily and cost-effectively realize the manufacture of a floor covering grid, wherein the structure and dimensions of the floor covering grid can be variably set via a simple adjustment of the floor covering elements. In the sense of the invention, arranged parallel and next to each other means that the corresponding floor covering elements are aligned parallel to each other in their main extension direction, and at least partially overlap in a direction perpendicular to their main extension direction.

[0017] In a third procedural step, it is preferred that two floor covering grids be fitted into each other in a shared edge area by inserting the projecting free recesses and/or corresponding projecting third partial areas of the one floor covering grid into the projecting free recesses of the other floor covering grid, and that the process for inserting a third partial area into a recess encompasses manufacturing a positive, non-positive and/or integral connection between the latter. This especially advantageously makes it possible to easily and cost-effectively realize any outer shape desired for a floor covering, wherein in particular the floor covering elements are mechanically stably fixed relative to each other.

[0018] In particular in a method according to one of the preceding embodiments, it is especially preferably provided that the process of inserting a third partial area into a recess encompass manufacturing a positive, non-positive and/or integral connection between the latter.

[0019] Another subject matter of the present invention involves the use of the floor covering grid element according to the invention, the arrangement of floor covering grids according to the invention and/or the arrangement of floor covering grid elements according to the invention as a floor covering, preferably as a fall protection covering, and especially preferably as a fall protection covering for a children's playground.

[0020] It is very especially preferred that a floor covering element and/or floor covering grid element be provided in particular according to one of the preceding embodiments, wherein the material of the floor covering element is a polyurethane (PU)-bound rubber granulate, preferably ethylene, propylene, diene, monomer (EPDM) rubber granulate, or a recycling rubber granulate bound with a binder, preferably PU. In a preferred embodiment of the invention, the floor covering element and/or the floor covering grid element thus encompasses a plastic granulate reacted with a binder, preferably a rubber granulate. The rubber granulate is preferably an EPDM (ethylene, propylene, diene monomer) rubber granulate. On the one hand, this EPDM rubber granulate known to the expert has an identical coloration throughout the entire grain. On the other hand, the EPDM granulate does not significantly fade even when exposed to strong and persistent solar radiation, very especially preferably making it possible to manufacture a floor covering grid and an arrangement of floor covering grids that permit a durably uniform coloration of the floor covering element according to the invention. It is also preferred that the floor covering element encompass a polyurethane (PU)-bound rubber granulate or even a comminuted rubber, preferably comminuted recycling scrap rubber, for example obtained by comminuting motor vehicle tires. Suitable as a preferably elastic binding agent is any binding agent familiar to the expert with which the granulate particles can be interconnected. The binding agent is preferably polyurethane (PU), with which the granulate particles are preferably completely jacketed.

[0021] The invention will be explained in greater detail below based upon exemplary embodiments depicted on the drawing.

Shown on: [0022]

Fig. lisa schematic side view of a floor covering element according to the invention,

Fig. 2 is a schematic perspective view of a floor covering grid according to the invention,

Fig. 3 is a schematic perspective view of an arrangement according to the invention of floor covering grids according to the invention, and

Fig. 4 is a schematic perspective view of a floor covering grid element according to the invention.

[0023] Fig. 1 presents an exemplary schematic side view of a floor covering element 1 according to the invention for creating a floor covering grid 10 with a partial area 2' that forms a first side 2 and a second partial area 3' that forms a second side 3, wherein the floor covering element 1 exhibits a main extension direction 6 parallel to the first and second sides 2, 3, and wherein the first partial area 2' further exhibits recesses 4 that interrupt the course of the first side 2 and the second partial area 3' has fourth partial areas 5 overlapping the recesses 4 in a direction 7 perpendicular to the main extension direction 6. The respective length 8 of the recesses 4 parallel to the main extension direction 6 is essentially identical to the width 9 of the floor covering element 1, wherein the distances between the recesses 4 are identical along the main extension direction 6. In particular, the distance between a recess 4 in the end area of the floor covering element 1 and the end of the floor covering element 1 parallel to the main extension direction 6 is approx, half as large as the constant distance between the recesses 4 one from the other. The material of the floor covering element 1 is preferably a polyurethane (PU)-bound rubber granulate, and especially preferably ethylene, propylene, diene-monomer (EPDM) rubber granulate, or a recycling rubber granulate bound with a binder, preferably PU.

[0024] Fig. 2 presents an exemplary schematic perspective view of a floor covering grid 10 according to the invention with a variety of floor covering elements 1 according to the invention, wherein a plurality of first floor covering elements 1' are arranged next to each other and parallel to each other in a first direction 11, and a plurality of second floor covering elements 1" are arranged next to each other and parallel to each other in a second direction 12 perpendicular to the first direction 11 in such a way that the third partial areas 5 of the first floor covering elements 1' engage into the recesses 4 of the second floor covering elements 1". In particular, the engaging process involves a non-positive, positive and/or integral connection. In the edge areas of the floor covering grid 10, floor covering elements 1 project out of the regular grid arrangement in such a way that free recesses 4 of the first and second floor covering elements 1', 1" project out of the regular floor covering grid 10, wherein one edge side 20 exhibits a second floor covering element 1" projecting with a free recess 4, and the edge side 20' perpendicular thereto exhibits a first floor covering element 1' projecting with a free recess 4. In addition, the first and second floor covering elements 1', 1" are each offset to each other parallel to the second and first directions 12,11, wherein only second floor covering elements 1" with free recesses 4 preferably project on the one edge side 20, while first floor covering elements Γ with free recesses 4 project on an opposing edge side 20". For example, this makes it possible to fit the floor covering grids 10 with another floor covering grid having the same orientation (not shown) into the free recesses 5" on the edge side 20.

[0025] Fig. 3 presents a schematic perspective view of an arrangement according to the invention of floor covering grids 10 according to the invention, wherein two floor covering grids 10', 10" of two sizes exhibit a shared edge area 20", wherein fourth partial areas 5 of a floor covering element 1 of the first floor covering grid 10' projecting in the edge area 20'" engage into the projecting free recesses 4 of a floor covering element 1 of the second floor covering grid 10", so that a mechanically stable connection is realized between the first and second floor covering grids 10', 10".

[0026] Fig. 4 presents a schematic perspective view of a floor covering grid element 100 according to the invention, wherein the floor covering grid element 10 exhibits a main extension direction 101, a plurality of first struts 102 and a plurality of second struts 103 arranged perpendicular to the first struts 102, wherein the first struts 102 exhibit first suspension recesses 105 in the area of a first edge side 105 of the floor covering grid element 100, and wherein the second struts 103 exhibit second suspension recesses in the area of a second edge side 105 of the floor covering grid element 100 opposite the first edge side 104 in the main extension direction 101, and wherein the first and second struts 102, 103 are further designed as a single piece, and in particular fabricated as a single piece. In the area of a third edge side 108 of the floor covering grid element 100, the first struts 102 exhibit third suspension recesses 109, wherein the second struts 103 exhibit a fourth suspension recess in the area of a fourth edge side 110 of the floor covering grid element 100 opposite the third edge side 108 in the main extension direction 101, wherein the first and third suspension recesses 105,109 are open in the direction of a first direction 120 parallel to a surface normal of the main extension direction 101, wherein the second and fourth suspension recesses are open in the direction of a second direction 121 running antiparallel to the first direction 120.

Claims (14)

FLOORING ELEMENTS, FLOORING GRIDS AND ARRANGEMENTS OF FLOORING GRATES, AS WELL AS MANUFACTURING PROCEDURE FOR A FLOORING GRID Floor covering grating (10) having a large number of floor covering elements (1), in particular of a non-slip, elastic, preferably weatherproof material, wherein the floor covering element (1) contains a first sub-area (2 ') forming a first side (2), a second sub-region (3 ') forming a second side (3) and a main extension direction (6) parallel to the first and second sides (2, 3), wherein the first sub-region (2') thereof at least is provided with a recess (4) which interrupts the course of the first side (2) and the second sub-area (3 ') is provided with a third sub-area (5) which is in a direction (7) which is perpendicular on the main extension direction (6), the recess (4) overlaps where a plurality of first floor covering elements (1 ') are located side by side and parallel to each other in a first direction (11), and a plurality of additional floor covering elements (1' ') ) are located side by side and parallel to each other in another retni ng (12) perpendicular to the first direction (11) in such a way that the third subareas (5) of the first floor covering elements (1 ') engage the recesses (4) of the additional floor covering elements (1'). '), characterized in that at least one free recess (4) of the first and / or additional floor covering elements (1) in the peripheral areas of the floor covering grid (10) protrudes from the floor covering grid (10). Flooring grid (10) according to claim 1, characterized in that the length (8) of the recess (4) parallel to the main extension direction (6) is arranged substantially corresponding to the width (9) of the third sub-region (5) perpendicular to the main extension direction. (6) and in the perpendicular direction (7), the total floor covering element (1) preferably having the constant width (9) of the third sub-region (5). Flooring grid (10) according to one of the preceding claims, characterized in that the floor covering element (1) has a total length of 0.1 to 20 meters parallel to the main extension direction, preferably 0.2 to 10 meters and particularly preferred 0. , 25 to 3 meters. Flooring grid (10) according to one of the preceding claims, characterized in that a rim side (20) contains an additional floor covering element (1 '') which projects with a free recess (4) and the perpendicular rim side (20) thereof. '') contains a first floor covering element {! '') which protrudes with a free recess (4). Flooring grid (10) according to one of the preceding claims, characterized in that the first and / or additional floor covering elements (1 ', 1' ') are displaced parallel to the second and / or first direction (12, 11). relative to each other, preferably on one edge side (20), only additional floor covering elements (1 '') with free recesses (4) protrude, while on the opposite edge side (20 ''), first floor covering elements (1 ') protrude. ) with free recesses (4) forward. Arrangement of floor covering gratings (10) according to one of claims 1 to 5, characterized in that at least two floor covering gratings (10 ', 10' ') have a common peripheral area (20), with free recesses (4' '), projecting into the peripheral region (20) and correspondingly non-intrusive third subareas (5 '') of a floor covering element (1) in the first floor covering grating (10 ') engaging in the projecting free recesses (4' '), on a floor covering element (1) in the additional floor covering lattice (10 ''). Flooring grating (10) according to one of claims 1 to 5 or arrangement of floor grating (10) according to claim 6, characterized in that a floor grating (10) or an arrangement consisting of a plurality of floor grating (10) is provided with an edge frame. , wherein the rim mounting is preferably designed in such a way as to prevent the release of individual floor covering grilles (10) and / or individual floor covering elements (1). A floor grating element (100) having a main extension plane (101), a plurality of first struts (102) and a plurality of additional struts (103) located perpendicular to the first struts (102), characterized in that the first struts (102) in the region of a first edge side (104) of the floor covering lattice element (100) is provided with first fastening recesses (105), and the additional stiffeners (103) in the area of a second edge side (106) of the floor covering lattice element (100) which opposite the first edge side (104) of the main extension plane (101) is provided with additional fastening recesses, the floor covering grating element (100) being integrally formed with the plurality of first struts (102) and the plurality of additional struts (103). Flooring grating element (100) according to claim 8, characterized in that the first struts (102) in the region of a third edge side (108) of the floor covering grating element (100) are provided with third fastening recesses (109), wherein the additional struts (103) in the region of a fourth edge side (110) of the floor covering lattice element (100), opposite the third edge side (108) of the main extension plane (101), is provided with a fourth fastening recess. Flooring grating element (100) according to one of Claims 8 or 9, characterized in that the first and / or third fastening recesses (105, 109) are open in the direction of a first direction (120) parallel to a plane normal of the main extension plane (101). ), while the additional and / or the fourth attachment recesses are open in the direction of a second direction (121) extending antiparallel to the first direction (120). Arrangement of floor covering lattice elements (100) according to one of claims 8 to 10, characterized in that at least one first floor covering lattice element with the first and / or third fastening recesses engages in the further and / or fourth fastening recesses on a further floor covering lattice element. . A method of manufacturing a floor covering grid (10) according to one of claims 1 to 5, wherein the floor covering elements (1) are manufactured in a first process step, characterized in that the first floor covering elements (1 ') are placed in a second method step side by side. , parallel to each other and offset relative to each other, and wherein the additional floor covering elements (1 '') in a third process step are placed side by side, parallel to each other and offset relative to each other on the first floor covering elements (1 ') on a such that the third sub-areas (5) and / or the recesses (4) on the additional floor covering elements (1 '') engage the recesses (4) and / or in the third sub-areas (5) on the first floor covering elements (1 ') ). The method of claim 12, wherein in a third process step in a common peripheral region (20), two floor covering grids (10) are interconnected by the projecting third sub-regions (5 '') on one floor covering grating (10). ) is inserted into the projections (4 '') projecting on the second floor lattice (10). Use of the floor covering lattice (10), a floor lattice element (100), an arrangement of floor lattice (10) and / or an arrangement of floor lattice elements according to one of claims 1 to 11 as a floor support, preferably as a fall protection coating and particularly preferably as a fall protection liner .