Spacer

Abstract

The present invention relates to a spacer (1, 1', 1'') having a bottom wall element (7) which is longer in its longitudinal direction than in its transverse direction, a first side wall element (8a) which delimits the bottom wall element (7) in its transverse direction, and a second side wall element (8b) which delimits the bottom wall element (7) in its transverse direction. The first and second side wall element (8a, 8b) each have a distal, continuous delimiting edge which extends in the longitudinal direction and is substantially offset-free in the vertical direction and which is designed as a standing portion on which the spacer (1, 1', 1'') can stand, such that an upper side surface of the bottom wall element (7), which is provided on the opposite side, opposite to the side from which the first and second side wall element (8a, 8b) project, is provided as a bearing surface for a reinforcing element in order to hold the reinforcing element at a distance from a base surface on which the standing portion can be placed. It is an object of the present invention to specify a spacer which can be used well in conjunction with flexible insulating panels and which sinks in only insignificantly, if at all, but at the same time has good stackability. The spacer (1, 1', 1'') is characterized in that the first and / or second side wall element (8a, 8b) have or has support arms (6a, 6b) which are arranged behind one another in the longitudinal direction and project from the bottom wall element (7) in the vertical direction, and in that the standing portion is formed by distal ends (19) of the support arms (6a, 6b) of one of the respective side wall elements (8a, 8b) and connecting portions (9a, 9b) connecting the distal ends (19) of these support arms (6a, 6b), wherein the first and / or second side wall element (8a, 8b) are or is configured in such a way that, when stacking a further spacer (1', 1'') with the same configuration on the spacer (1), the support arms (6a, 6b), which are assigned to the respective side wall element (8a, 8b), of the two spacers (1, 1') extending in the vertical direction of the respective spacer (1, 1') are arranged behind one another in alignment in the longitudinal direction.

Description

[0001] spacers

[0002] The present invention relates to a spacer suitable for ensuring the maintenance of a distance between reinforcement and a wall, ceiling, or floor surface before and / or during concreting. Various variants of such spacers are known in the prior art. Exemplary variants are shown schematically in Figure 1.

[0003] So-called surface spacers have an elongated, strand-like shape. Two different types are designated by reference numerals 100a and 100b in Figure 1. So-called ring spacers, designated by reference numeral 200a in Figure 1, are also known. Such a ring spacer 200a is placed around a reinforcing bar 2 of a reinforcement grid 3 and is used in particular to ensure a spacing in the vertical direction, as shown in Figure 1. In this figure, reference numeral 4 designates a formwork. With respect to this formwork 4, the reinforcement grids 3 are to assume a predetermined spacing and then be cast into the concrete 5 to form a wall, a ceiling, or a floor.

[0004] For example, there are two types of so-called surface spacers in the prior art. First, the type designated by reference numeral 100a rests directly on the formwork 4. For this purpose, support arms 600 are provided one behind the other in the longitudinal direction of the strand-shaped spacer 100a, which rest on the formwork 4. On the upper side, this spacer 100a has a base wall element 700 from which the support arms 600 project downward (in the direction in Figure 1).

[0005] The reinforcement grids 3 are placed on the planar floor wall element 700. Several such spacers 100a are arranged in a row next to one another and with their longitudinal direction parallel to one another in order to provide a predetermined distance between the reinforcement grids 3 and the outer surfaces of the future concrete wall / ceiling / floor.

[0006] The second type is designated by reference numeral 100b in Figure 1. This is used when the concrete is poured, for example, directly onto a relatively soft insulation board 900. If spacers of type 100a were used, their support feet would sink into the relatively soft insulation material due to the small cross-sectional area of ​​the support arm bases, and a predetermined distance from the outer surfaces of the subsequent concrete wall / ceiling / floor could not be achieved.

[0007] Therefore, for example, a variant is chosen here in which the floor wall element 700 rests on the insulation panel 900 and the side wall elements 800 carried by the floor wall element 700 are essentially formed by elongated strips that form a substantially offset-free boundary edge that forms the standing section. The standing section is referred to as a standing section because the spacer can also be used turned upside down by 180°. In the latter case, the reinforcement grid 3 rests on the planar floor wall element 700. In the case shown, the reinforcement grid 3 rests on the boundary edges of the adjacent standing sections. Since the surface of the standing section is formed by the boundary edge, which is larger than the support arm footprint of the support arms of the spacer 100a, sinking of the latter into the insulation panel 900 is prevented when the spacer element is turned upside down compared to the situation in Fig.1 is placed on the insulation board 900.

[0008] Further known spacers according to the previously described variants 100a and 100b are shown in Figures 2 and 3.

[0009] Figure 2 shows a variant 100b' corresponding to variant 100b. Here, a base wall element 700 is also provided, from which two side wall elements 800 protrude on both sides, essentially forming a U-shaped cross-section. Both the base wall element 700 and the side wall elements 800 are provided with openings to save material and weight.

[0010] The spacer shown in Figure 2 can be placed on a soft material with both the floor wall surface 700 and the boundary edges of the side wall elements 800 that form the standing section. The reinforcement grid 3 then rests on the other side, on which the spacer does not rest.

[0011] Figure 3 shows a design of a spacer 100a' described in utility model DE 202011 103 181 U1. Variant 100a' corresponds to variant 100a in Figure 1. In this spacer 100b, support arms 600 protrude alternately from the base wall element 700 on different sides. The support arms have a relatively small support arm footprint and thus sink into a soft insulating material. The advantage of the design shown in Figure 3 is its stackability. The spacer 100a' is designed such that spacers with the same geometry as this spacer can be stacked on top of one another, as described in utility model DE 20 2011 103 181 U1.In particular, the distal end of the support arm of a spacer (not shown) stacked on the spacer shown in Figure 3 and having the same geometry as this spacer engages in the recess formed by the support arms 600 projecting from the side wall of the floor forest element 700.

[0012] The fourth spacer stacked on top of each other then corresponds in its longitudinal position to the first (bottom) spacer. This means that when stacking corresponding spacers, two support arms, each from a different spacer, always engage in the recess between two longitudinally adjacent support arms 600.

[0013] However, in the variant of the spacers 100b and 100b', which essentially have a U-shaped design, with a continuous, essentially offset-free boundary edge, which is designed as a standing section, there is the problem that these spacers are not so easy to stack.

[0014] Based on this, it is the object of the present invention to provide a spacer which can be used well in conjunction with soft insulation boards and does not sink in or only sinks insignificantly, but at the same time has good stackability.

[0015] To solve this problem, a spacer having the features of claim 1 is provided. Further advantageous embodiments are defined in the dependent claims.

[0016] In particular, the spacer according to the invention is characterized in that at least one of the first and / or second side wall elements has support arms arranged one behind the other in the longitudinal direction and projecting vertically from the base wall element; preferably, each of the two side wall elements is constructed identically. The support arms each have distal ends. These are provided on the distal side with respect to the ends that attach to the base wall element. So-called connecting sections are provided between corresponding distal ends of adjacent support arms within the side wall element. These connecting sections, together with the distal ends of the adjacent arms, then form the continuous boundary edge that is essentially offset-free in the vertical direction and is designed as a standing section.Furthermore, the first and / or second side wall element is configured such that, when a further spacer with the same configuration is stacked on the (first) spacer, support arms of different spacers extending in the vertical direction of the respective spacer are arranged in alignment one behind the other in the longitudinal direction. This means that when looking at the spacer from the front in the longitudinal direction, essentially the frontmost support arms delimiting a spacer are visible, and the support arms of the stacked further spacers are only visible to the extent that they project beyond the spacer below in the vertical direction of the spacer.

[0017] Each support arm can have a larger cross-sectional area (seen perpendicular to the height direction / extension direction) than each of the connecting sections individually in the same cross-sectional direction.

[0018] This configuration provides a spacer that can be used in conjunction with insulation boards and can also be safely stacked. Such a configuration can, for example, withstand a point load of 100 kg.

[0019] According to a further development of the invention, the spacer is configured such that, when stacked with further spacers of the same configuration, the third, fourth, fifth or sixth spacer, when viewed from above onto the surface side of the floor wall element (in the longitudinal direction), occupies the same position as the first, bottommost spacer. Accordingly, not only is any stackability advantageous, but the stackability of the spacers has a repeating pattern. This means that after the second, or alternatively the third, or alternatively the fourth or alternatively the fifth spacer, the stacking sequence starts again from the beginning. In particular, it has proven advantageous for the fourth spacer stacked above the first spacer to again occupies the same position in the longitudinal direction as the bottommost first spacer.

[0020] Furthermore, it is advantageous if the spacer has a recess when viewed from the top on the surface side of the base wall element. This recess is formed by a transverse boundary surface that delimits the base element in the transverse direction and between support arms of the same side wall element that are adjacent in the longitudinal direction. Both the first and the second side wall element can be configured in this way. When a further spacer is stacked with the support arms first on the base wall element of the first spacer, for example, the top surface of the base wall element of the first spacer essentially rests on a bottom surface of the further spacer of the base wall element stacked above the first spacer. The top surface of a base wall element lies on the side opposite the side into which the support arms protrude.When stacking the additional spacer on top of the first spacer, the corresponding support arms of the additional spacer are inserted from above into the recess(es) of the first spacer. The support arms have corresponding longitudinal boundary walls. These are the walls of the support arms that define the support arms in the longitudinal direction of the spacer. The corresponding longitudinal boundary walls of adjacent support arms of different spacers stacked on top of one another essentially lie adjacent to one another and directly opposite one another. The previously described configuration results in a very compact stacking sequence.

[0021] The spacer can be configured such that, when viewed from the top surface of the floor wall element, the support arms extending in the viewing direction protrude laterally from the transverse boundary surface of the floor wall element that outwardly delimits the spacer. Thus, the spacer has a substantially ant-like configuration in which the support arms extend downwardly laterally from the floor element.

[0022] According to a further development of the invention, the connecting sections are designed as planar ribs. The respective planar rib stands upright in the vertical direction of the spacer, i.e., upright in the direction from which the support arms extend. The planar rib has these limiting end sections in the longitudinal direction of the spacer. These are bent inward with respect to the spacer (with respect to the gap between the adjacent side wall elements of the same spacer). These inwardly bent end sections can be connected to a side edge of the respective support arm of two adjacent support arms of the same side wall element. The side edge corresponds to the transition from the longitudinal limiting wall to the outer wall of the support arm.

[0023] Because the planar ribs have essentially curved end sections, it is easier to thread the support arms from above. Furthermore, in stacked ensembles of several spacers stacked one above the other, ensembles lined up next to one another essentially lie planar against one another with their side walls. The side wall of such an ensemble is formed by planar ribs of stacked spacers arranged one above the other in the vertical direction. The corresponding planar rib can be delimited in the vertical direction by two edges. The distal edge of the rib with respect to the base wall element defines a first standing area of ​​the standing section. A second standing area of ​​the standing section is formed by the support arm standing surface provided on the distal side of the support arms.

[0024] The second of the two edges of the planar ribs is a proximal edge. This proximal edge, together with the longitudinal boundary walls of adjacent support arms of the same sidewall element and the transverse boundary surface of the bottom wall element, forms a sidewall element opening. Thus, when viewed transversely from the outside of a sidewall element, a continuous opening is formed between the planar rib, two adjacent support arms, and the bottom wall element. This opening can accommodate the corresponding support arms of stacked spacers.

[0025] It is advantageous if the height of the planar rib in the height direction of the spacer corresponds approximately to the inverse of the multiple minus 1 after stacked spacers with the same configuration are again arranged on top of each other in the height direction. This means that, for example, after the third stacking of spacers, when spacers are arranged in three (3) layers, and thus the fourth spacer again has the same longitudinal position as the bottom first spacer, the ribs essentially correspond to one-third (1 / 3) of the height of the spacer. This means that if the stacking sequence is three, the heights of the planar ribs correspond to one-third of the height of the spacer. The following formula is favorable for the height depending on the stacking: h / H = 1 / (N-1).

[0026] Here, H is the height of the spacer, h is the height of the planar rib, and N is the number after which the spacer stacked above it again corresponds longitudinally to the position of the first spacer. If the stacking sequence is four, i.e., every fifth spacer is above the first spacer, the height of the planar ribs corresponds to one-quarter of the height of the spacer, and so on.

[0027] According to a further advantageous development of the invention, the proximal edge of the planar rib has a central indentation in the vertical direction. This indentation is bordered by two protrusions. The protrusions are located, in the longitudinal direction of the spacer, essentially at the same height as the corresponding support arm of the spacer stacked above it.

[0028] It is advantageous that the proximal edge of the planar rib has a central indentation in the height direction, which is surrounded by two humps that limit it.

[0029] It is further advantageous that the support arm base of a further spacer stacked on the spacer is substantially directly adjacent to the proximal edge of the planar rib of the (lower) spacer in the height direction.

[0030] Furthermore, it is preferred that the distance between two opposing inner wall surfaces of support arms provided on opposite side surfaces is smaller than the distance between the two outer wall surfaces of the opposing support arms. In this case, the support arms of the two side wall elements of the spacer are directly opposite each other. However, an offset arrangement of the arms in the longitudinal direction with respect to the side wall elements can also be provided. If this is the case, the distance between the projection of adjacent arms in the longitudinal direction applies to the corresponding spacing relationship.

[0031] In particular, the bottom wall element, the first and second side wall elements are designed as one piece in the spacer.

[0032] The spacer is advantageously manufactured using an injection molding process. State-of-the-art spacers were typically manufactured using an extrusion process. In the present configuration, it has proven advantageous to manufacture these spacers using an injection molding process. Therefore, it is advantageous that no undercuts are provided.

[0033] The spacer can be made of plastic, especially PVC-free plastic. In particular, the plastic can be recycled. PE, PP, or a mixture of these can be used.

[0034] The spacer has an essentially U-shaped configuration when viewed in its longitudinal direction. The U-shaped configuration essentially refers to the projection of the spacer in the longitudinal direction onto a surface. In addition to the spacer as such, a stack of two, three, four or five spacers stacked on top of one another can also constitute the invention in itself. Such a stack is also referred to as an ensemble of spacers. An arrangement of several ensembles of spacers stacked on top of one another in the vertical direction, with the ensembles arranged next to one another and their side walls touching, can also form a shipping unit, e.g. on a pallet. This shipping unit can also constitute the invention in itself.

[0035] Furthermore, the method for producing the spacer according to the invention can also be protected. The method is an injection molding process, wherein, for example, a PVC-free plastic is used in the injection molding process. A method for producing the shipping unit and / or the assembly can also constitute the invention in itself. Here, the spacers are first stacked into assemblies and then combined into a packaging unit.

[0036] Further advantageous embodiments are described below using an exemplary embodiment in conjunction with the drawing.

[0037] Figure 1 is a schematic view of the use of various spacers known in the prior art,

[0038] Figure 2 shows another spacer known in the prior art for use on insulation boards,

[0039] Figure 3 shows a spacer described in DE 20 2011 103 181 U1 for use on solid surfaces,

[0040] Figure 4 is an oblique plan view of an embodiment of a spacer according to the invention,

[0041] Figure 5 is an oblique plan view in which three of the spacers shown in Figure 4 are stacked one above the other in the vertical direction,

[0042] Figure 6 is a schematic plan view of a surface side of the bottom wall element of the spacer from Figure 4, Figure 7 is a side view of the spacer in Figure 4 transverse to the longitudinal direction and substantially perpendicular to one of the side wall elements,

[0043] Figure 8 is a front view of the spacer from Figure 4 in the longitudinal direction along the spacer seen from the long side with the tab and

[0044] Figure 9 is a corresponding schematic front view of stacked spacers along the longitudinal direction seen from the side of the tab, corresponding to the embodiment in Figure 5.

[0045] The variants known in the prior art have already been described in the introduction to the description with reference to Figures 1 to 3.

[0046] The spacer 1 according to the invention shown in Figure 5 has a configuration in which several of the same spacers (with 3 spacers 1 in this example) are stacked one above the other, wherein at the same time a standing section is formed by a boundary edge of the corresponding side wall element 8a, 8b which is substantially offset-free in the height direction.

[0047] The spacer 1 in Figure 4 has a bottom wall element 7 and two side wall elements 8a and 8b. The side wall element 8a is described below as the first side wall element and the side wall element 8b as the second side wall element. In the exemplary embodiment, each side wall element has support arms 6a and 6b provided one behind the other in the longitudinal direction, which extend in the vertical direction of the spacer. Here, the support arms 6a are the support arms of the first side wall element and the support arms 6b are the support arms of the second side wall element. In addition, each side wall element 8a, 8b has a corresponding connecting section 9a or 9b. Here, the connecting section 9a is assigned to the first side wall element 8a and the connecting section 9b is assigned to the second side wall element 8b.Each of the side wall elements 8a, 8b is thus constructed from the support arms 6a, 6b, which are arranged one behind the other in the longitudinal direction of the spacer 1, and the connecting sections 9a, 9b. The support arms 6a, 6b protrude vertically in the vertical direction from the base wall element 7.

[0048] A coordinate system is shown in Figure 4. The X-direction corresponds to the longitudinal direction (seen from the tab 10). The Y-axis corresponds to the transverse direction and the Z-axis corresponds to the (negative) height direction. In the following, top, bottom, left and right refer to the corresponding sides in Figure 4. These designations top, bottom, left and right are merely used to differentiate the corresponding directions and positions. The direction from top to bottom corresponds to the negative Z-direction. The longitudinal direction as seen from the tab 10 corresponds to the X-direction. Accordingly, the opposite longitudinal direction as seen from the side of the tab holder 11 corresponds to the negative X-direction.

[0049] The first side wall element 8a is provided on the left side of the base wall element 7, and the second side wall element 8b is provided on the right side of the base wall element 7. The support arms 6a, 6b protrude in the vertical direction (negative Z direction) from a transverse boundary surface 12 of the base wall element 7. The transverse boundary surface 12 corresponds to the wall of the base wall element that defines it in the transverse direction.

[0050] The corresponding support arms 6a and 6b protrude from the floor wall element in the transverse direction when viewed from the top surface of the floor wall element 7 and each form a recess 13 when viewed from the top surface of the floor wall element 7. The recess 13 is formed between longitudinally adjacent support arms 6a, 6b (see Figure 6) and the transverse boundary surface 12.

[0051] When stacking a spacer with the same configuration as the spacer shown in Figures 4, 6, 7 and 8 on the spacer shown there, the support arms of the further spacer are inserted into the recess 13.

[0052] This can be seen schematically in Figure 5, for example. The adjacent support arms 6b, 6b', 6b" of different stacked spacers 1, 1', 1" are accordingly directly adjacent to one another in the longitudinal direction.

[0053] Each support arm 6a, 6b has longitudinal boundary surfaces 14a, 14b (see Figs. 6 and 7) that delimit the spacer 1 in the longitudinal direction, an outer surface 15, and an inner surface 16 (see Fig. 4). The designations "outer" and "inner surface" refer to the outer and inner surfaces of the spacer 1, respectively. The longitudinal boundary surfaces 14a, 14b of corresponding support arms 6a, 6b of adjacent stacked spacers 1, 1', 1" are essentially opposite and adjacent to one another (see Fig. 5).

[0054] The connecting section 9a, 9b is formed in the present case as a planar rib. The planar rib is upright in the height direction (Z-direction) and is provided laterally between two longitudinally adjacent support arms 6a, 6b of the corresponding side wall elements 8a, 8b, connecting the corresponding adjacent support arms to one another. The planar rib 9a, 9b has a distal edge 17 and a proximal edge 18 (see Figs. 7 and 4). The terms distal and proximal are used with reference to the position of the bottom wall element 7. Thus, the protective arms 6a, 6b also each have distal ends 19 and proximal ends 20 (see Figs. 7 and 4).

[0055] The proximal ends 20 are integrally connected to the transverse boundary surfaces 12. The distal ends 19 each have a support arm base surface 21. The support arm base surface 21 defines a second base area of ​​the base section. The distal edge 17 of the planar rib forms a first base area of ​​the base section. Thus, the first and second base areas form a boundary edge that is essentially offset-free in the vertical direction and extends continuously across the spacer in the longitudinal direction. This allows for good surface loading.

[0056] The planar ribs have an indentation 22 on their proximal edge 18 (cf. Figs. 4 and 7) and correspondingly two humps 23 which enclose the indentation 22 between them.

[0057] Furthermore, the planar rib 9a, 9b has inwardly curved wall sections 24 at its two ends, viewed in the longitudinal direction (see Fig. 6). These inwardly curved wall sections 24 protrude from the edge 25 of the respective adjacent support arms 6a, 6b. The edge results from the intersection of the outer surface 15 with the longitudinal boundary surfaces 14a, 14b of the support arms. A side wall element opening 26 is formed between the planar rib 9a, 9b, the support arms 6a, 6b, and the bottom wall element 7 (see Figs. 4 and 7). In particular, the side wall element opening 26 is formed by the longitudinal boundary surface 14a, 14b of two adjacent support arms 6a, 6b, the transverse boundary surface 12, and the proximal edge 18.The sidewall element opening 26 is configured such that, when viewed transversely to the longitudinal direction of the respective sidewall element 8a, 8b, transversely to the extension of the support arms 6a, 6b, several support arms of stacked sidewall elements fill this opening (see Fig. 5). In addition to the support arms 6b', 6b", a section of the corresponding planar rib 9b of the spacer element 1', 1" stacked above them also always fills the sidewall element opening 26, as can be seen in Fig. 5.

[0058] In the present embodiment, the spacer is configured such that after every three spacers are stacked one above the other, as shown in Figure 5, the corresponding fourth spacer is again aligned or can be aligned in the same position with the lowest spacer in Figure 5 in the vertical direction. In Figure 5, the lowest spacer is designated as the first spacer, the middle spacer as the second spacer, and the upper spacer as the third spacer. Thus, there is a repetition rate of three.

[0059] Advantageously, the height of the planar rib 9a, 9b corresponds approximately to one-third of the height of the spacer in the vertical direction. It is advantageous if the height of the planar rib in the vertical direction of the spacer corresponds to the inverse of the multiple minus 1 after stacked spacers with the same configuration are again arranged one above the other in the vertical direction. This means that after the third stacking of spacers, the spacers are arranged in three layers, and the fourth spacer again has the same longitudinal position as the lowest first spacer, and the ribs essentially correspond to one-third of the height of the spacer. If the stacking sequence is three, the heights of the planar ribs correspond to one-third of the height of the spacer. The following formula is favorable for the height as a function of the stacking: h / H = 1 / (N-1).

[0060] Here, H is the height of the spacer, h is the height of the planar rib, and N is the number after which the spacer stacked above it again corresponds longitudinally to the position of the first spacer. If the stacking sequence is four, i.e., every fifth spacer is above the first spacer, the height of the planar ribs corresponds to one-quarter of the height of the spacer, and so on.

[0061] Accordingly, the planar ribs of the stacked spacers form a side wall of an ensemble of stacked spacers which is essentially planar and discontinuous.

[0062] The corresponding spacer 1 has, in its longitudinal direction, a tab 10 on one longitudinal boundary side of the base wall element 7 and a tab receptacle 13 on the corresponding other longitudinal boundary side, into which the tab can be inserted. The tab 10 has locking projections 27 (see Figs. 6 and 7), with which the tab 10 can be locked into the tab receptacle 13 and releasably secured again. In the present embodiment, the base wall element 7 also has base openings 28 (Figs. 4 and 6). As a result, the base element itself has a grid-like structure or a ladder-like structure.

[0063] In the present embodiment, the support arms 6a, 6b are arranged directly opposite one another with respect to opposite side wall elements 8a and 8b, and the spacer is constructed mirror-symmetrically along a mirror plane that runs perpendicular to the height direction and centrally through the bottom wall element 7 in the longitudinal direction. In a further embodiment, the corresponding arms of one of the side wall elements can also be offset with respect to the other side element, for example, always being provided centrally between two support arms of the other side wall element. It is also not necessary for the corresponding bottom section to have these bottom openings 28.

[0064] In this case, the spacer is a one-piece injection-molded plastic. Any plastic can be used, preferably injection-moldable. A recyclable plastic is particularly preferred. A PVC-free plastic is also advantageous. The plastic can be PE or PP, or a mixture of these.

[0065] Figures 8 and 9 show corresponding heights in millimeters. The heights can vary by + / - 90%, particularly + / - 50%, from the specified heights. Thus, the height of the planar rib in the exemplary embodiment is 13.2 mm and can be within a range of 25.8 to 1.32 mm at + / - 100%, or within a range of 19.8 to 6.6 mm at + / - 50%. The aforementioned limits can each form the upper or lower limit of a range.

[0066] The length of a support arm, for example, is 39.5 mm. The above applies accordingly to the advantageous areas.

[0067] In this example, the width between two outer walls of opposing support arms at the level of the top surface of the floor wall element is 40.0 mm. The above applies accordingly to the advantageous areas.

[0068] The width between two outer walls of opposing ribs at the level of the distal edge of the ribs is 47.7 mm in the example. The above applies accordingly to the advantageous regions. The distance between a bottom wall surface of the floor wall element and the standing section, i.e., the clear height within the spacer between the standing surface and the underside of the floor element, is 29.0 mm in the exemplary embodiment. The above applies accordingly to the advantageous regions.

[0069] As shown in Figure 9, approximately one third of the overlying spacer will protrude in the vertical direction over the respective underlying spacer when stacked, resulting in increased space savings.

[0070] Figure 9 shows a longitudinal view in which the corresponding support arms of the stacked spacers are aligned longitudinally, so that only the support arms of the first lower spacer are visible here. In the vertical direction, the support arms of the next spacer extend beyond the spacer below.

[0071] The planar ribs of stacked spacers are aligned such that their outer walls form a planar surface in the vertical direction and these planar surfaces of the outer walls of the ribs of different stacked spacers, which are arranged directly above one another in the height direction, form a side wall of an ensemble of stacked spacers.

[0072] It is sufficient for one of the corresponding side wall elements to be provided with the arms. However, preferably both side wall elements are provided with the corresponding arms.

[0073] List of reference symbols:

[0074] Spacers 1, 1 ', 1", 100a, 100b, 100b', 200a

[0075] Probation Staff 2

[0076] Probation grid 3

[0077] Formwork 4

[0078] Concrete 5

[0079] Support arm 6a, 6b, 6b', 6b", 600

[0080] Floor wall element 7, 700

[0081] Side wall elements 8a, 8b, 800 Insulation board 900

[0082] Connecting section 9a, 9b

[0083] Tab 10

[0084] Tab holder 11

[0085] Transverse boundary surface 12

[0086] Recess 13

[0087] Longitudinal boundary surface 14a, 14b

[0088] Exterior surface 15

[0089] Inner surface 16 distal edge 17 proximal edge 18 distal end 19 proximal ends 20

[0090] Support arm footprint 21

[0091] Indentation 22

[0092] hump 23

[0093] Inwardly bent end section 24

[0094] Edge 25

[0095] Side wall element opening 26

[0096] Locking projections 27

[0097] Floor openings 28

Claims

Claims 1. Spacer (1 , 1', 1") with a base wall element (7) that is longer in its longitudinal direction relative to its transverse direction, a first side wall element (8a) that limits the base wall element (7) in its transverse direction and projects substantially vertically from the base wall element (7), and a second side wall element (8b) that limits the base wall element (7) in its transverse direction and projects substantially vertically from the base wall element (7), wherein the first and second side wall elements (8a, 8b) accommodate the base wall element (7) between them, and the first and second side wall elements (8a, 8b) each have a distal, longitudinally extending, continuous, and substantially vertically offset boundary edge, which is designed as a support section on which the spacer (1 , 1', 1") can stand, so that a top surface of the base wall element (7)which is provided on the opposite side, opposite to the side from which the first and second side wall elements (8a, 8b) project, is provided as a support surface for a reinforcement element in order to keep the reinforcement element at a distance from a base surface on which the support section can be placed, characterized in that the first and / or second side wall element (8a, 8b) has support arms (6a, 6b) arranged longitudinally one behind the other and projecting vertically from the base wall element (7), and that the support section is formed by connecting sections (9a, 9b) connecting the distal ends (19) of the support arms (6a, 6b) of one of the respective side wall elements (8a, 8b) and the distal ends (19) of these support arms (6a, 6b), wherein the first and / or second side wall element (8a, 8b) is configured such that when a further spacer (1', 1") with the same configuration is stacked on the spacer (1),the support arms (6a, 6b) of the two spacers (1 , 1 ') assigned to the respective side wall element (8a, 8b), which extend in the vertical direction of the respective spacer (1 , 1 '), are arranged in a longitudinally aligned position one behind the other.

2. Spacer (1 , 1 ', 1 ”) according to claim 1 , characterized in that the spacer (1 , 1 ', 1 ") is configured such that when stacked with further spacers (1 1 ") with the same configuration, the third, fourth, fifth or sixth spacer, viewed from above on the top surface of the bottom wall element (7), again assumes the same position in the longitudinal direction as the first lowest spacer.

3. Spacer (1, 1', 1") according to claim 1 or 2, characterized in that the support arms (6a, 6b) of the first and / or second side wall element (8a, 8b) project laterally in a transverse direction from a transverse boundary surface (12) of the bottom wall element (7) and project distally in the vertical direction of the spacer (1, 1'), such that, viewed from the top surface of the bottom wall element (7), a recess (13) is formed between longitudinally adjacent support arms (6a, 6b), which is configured such that, when a further spacer (1', 1") with the same configuration is stacked on the spacer (1), the support arms (6a, 6b) of the further spacer (1', 1") can be inserted into the recess (13), and the respective support arms extend longitudinally along the spacer. (6a, 6b) limiting longitudinal boundary walls (14a, 14b) of adjacent support arms (6a, 6b) of different stacked spacers (1 ',1") essentially abut each other.

4. Spacer (1 , 1 ', 1 ") according to one of claims 1 to 3, characterized in that the connecting sections (9a, 9b) project in the transverse direction over the support arms (6a, 6b) in the transverse direction in relation to the spacer (1 , 1 ', 1") this outwardly limiting outer wall (8a, 8b) of the respective support arm (6a, 6b) when viewed from above the top surface of the bottom wall element (7).

5. Spacer (1 , 1 ', 1 ”) according to claim 4 insofar as dependent on claim 3, characterized in that the connecting sections (9a, 9b) are each formed as a planar rib extending in the height direction of the respective side wall element (8a, 8b), the two end sections (24) of which limit these in the longitudinal direction of the spacer (1 , 1 ', 1") are bent inwards with respect to the spacer (1 , 1 ', 1 ").

6. Spacer (1 , 1 ', 1") according to claim 5, characterized in that the two end sections (24) of the connecting section (9a, 9b) are connected to a respective side edge (25) of longitudinally adjacent support arms (6a, 6b) that defines the longitudinal boundary wall (14a, 14b) and the outer wall (15).

7. Spacer (1 , 1 ', 1 ") according to claim 5 or 6, characterized in that the planar rib in the height direction of the spacer (1 , 1 ', 1") is bounded by two edges, namely a distal edge (17) with respect to the base wall element (7) and a proximal edge (18) with respect to the base wall element (7), wherein the distal edge (17) forms a first support area of ​​the support section and wherein a second support area of ​​the support section is formed by a support arm support surface (21) provided on the distal side of the support arms (6a, 6b).

8. Spacer (1 , 1 ', 1") according to claim 7, characterized in that the proximal edge (18) together with the longitudinal boundary walls (14a, 14b) of adjacent support arms (6a, 6b) and the transverse boundary surface (12) of the bottom wall element (7) forms a side wall element opening (26).

9. Spacer (1 , 1 ', 1") according to claim 8, characterized in that, viewed transversely to the longitudinal direction and in top view of the respective side wall element (8a, 8b) and transversely to the extension direction of the support arms (6a, 6b), a support arm (6b') of the further spacer (1 ') or several support arms (6b', 6b") of corresponding spacers (1 ', 1 ") with the same configuration, which are stacked on the spacer (1), substantially completely fill the side wall element opening (26).

10. Spacer (1 , 1 ', 1") according to one of claims 1 to 9, characterized in that a height of the planar rib in the vertical direction corresponds to the inverse of the stacking sequence.

11. Spacer (1 , 1 ', 1") according to one of claims 6 to 10, characterized in that the proximal edge (18) of the planar rib has a central indentation (22) in the vertical direction, which is surrounded by two humps (23) limiting it.

12. Spacer (1 , 1 ', 1") according to one of claims 6 to 11 , characterized in that the support arm base surface (21) of a further spacer (1 ') which is stacked on the spacer (1) substantially in the vertical direction directly adjoins the proximal edge (18) of the planar rib of the spacer (1).

13. Spacer (1 , 1 ', 1") according to one of claims 1 to 12, characterized in that the distance between two opposing inner wall surfaces of support arms (6a, 6b) of the opposing side wall elements (8a, 8b) is smaller than the distance between the two outer wall surfaces of the opposing support arms (6a, 6b).

14. Spacer (1 , 1 ', 1") according to one of claims 1 to 13, characterized in that the bottom wall element (7) and the first and second side wall element (8a, 8b) are made in one piece.

15. Spacer (1, 1 ', 1") according to one of claims 1 to 14, characterized in that the spacer (1, 1 ', 1") is manufactured by injection molding.

16. Spacer (1, 1 ', 1") according to one of claims 1 to 15, characterized in that the spacer (1 , 1 ', 1 ") is made of plastic.

17. Spacer (1, 1 ', 1") according to one of claims 1 to 16, characterized in that the spacer (1 , 1 ', 1 ") is essentially U-shaped when viewed in its longitudinal direction.

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