EP1083269B1 - Aid for laying covering plates in a raised or ventilated position - Google Patents

Abstract

The strip-shaped laying aid (10) is for supported and under-ventilation of slabs on terraces, balconies etc. It comprises a strip (12) of thermo-plastics, of which the upper side facing the slabs bears projections (14) acting as slab support bearings. On the projections the corner areas of the slabs are placed in a predetermined pattern at a parallel distance from the ground. In the closed upper side of the projections facing the slabs groove-shaped cavities (16) are formed for alignment of the slabs with a predetermined seam spacing. From the upper side of the foil strip, support projections (36) emerge spaced from the projections (14) acting as support bearings.

Description

The invention relates to a sheet-shaped laying aid for a stilted or ventilated laying of panels on terraces and balconies, whereby the sheet-like laying aid is made of a foil sheet Has thermoplastic, of which the one to be applied Plate covering facing the top in one of the Distribution of the corner points of the panels as intended appropriate distribution to be laid Projections are provided as a pedestal on which the Corner areas of the slabs to be laid in the predetermined laying pattern can be placed parallel to the surface are. The protrusions are made of the material of the original flat, inherently rigid rollable film web integrally molded out of the plane of the film web and pot-like Underside open areas of the film web formed.

For creating so-called raised or ventilated coverings from slabs on patios, balconies, etc. are different Tools and devices known, each at the places where the corners of the slabs to be laid to lie on the top layer of the terrace, the balcony and the like be put on or applied and stilts or supports for the slabs to be laid form. On the one hand there are rigid, disc-like pedestals known, on the edge of which four lobes are angled, form the contact surfaces for the slabs to be laid.

For unevenness in the surface of the substrate in the support area balance and a certain height adjustment of neighboring Being able to carry out plates often also become stilts created by first in the support area plastically deformable and then hardening material applied on which the corners of the slabs to be laid should come to rest. In the simplest case Mortar chunks used that applied to the subsurface be what the panels are in the not yet cured Mortar chunks are pressed in and so height differences are evened out become. Due to the weight of the plates and the especially when walking on or driving onto the plates hardened mortar chunks of pressure exert themselves the mortar chunks over time into the one that supports them Layer, e.g. a thermoplastic seal so that troughs form, in which self-advancing i.e. with a tendency to ensure the expiration of screed provided with water can accumulate water and the mortar chunks are in the water. Especially at They are then attacked by frost and eventually can be destroyed.

These disadvantages have been avoided with other systems which the plastically deformable curable material does not directly on the ground, but on one there before designed load distribution plate applied and covering side a roof part is placed on the deformable material was what water entering through the plate joints so that the plastically deformable material does not is wetted directly with water (EP 0 829 592 A1). In all Cases have so far been separate pedestals in the cross joint area used by two or four plates, that is positioned according to the progress of the plate laying had to be put on before the plates were put on. This is a laborious process in which the precise alignment and adjustment of the gap between the Plates require special care.

DE 9011271 U was a laying aid made of a plastic mat knob-like increases known.

In contrast, the task is based, a laying aid for built-on slabs of the ones in question Way of creating which is the quick and easy creation of tile coverings without complex alignment of the individual plates relative to each other.

According to the invention, this object is achieved in that the closed towards the plates to be stored Top of the projections means for aligning the to be stored Slabs are provided at a predetermined joint spacing are. When assembling it is simply this with the Foil sheet provided on pedestals on the with the slab covering on the surface to be provided, on which the Slabs are placed on top of the pedestal. When creating slab coverings on large surfaces, e.g. Terraces, etc. can then have several membrane sheets laterally offset or successively be used. The hot deformation of the plastic film in the Thermoforming or vacuum blow molding creates protrusions the pedestal is simple and inexpensive Create plastic film. The so produced has Foil webs provided with pedestals have the advantage that they are on Runways and thus stored and transported to save space can be. Because the distances between the as a pedestal serving projections in the film web exactly specified there is no individual orientation when laying Stilts required. Because the film web has no opening it also serves as a lock against the passage of penetrating through the joints of the panels Water or forms a protective seal Train.

The means for aligning the plates to be supported can for example, from two centered on the top of the protrusions at right angles cutting groove-like Depressions are formed, in which up to the slabs to be stacked protruding strip or cross-shaped Joint spacers can be used. By the horizontal width of these joint spacers will be the gap between the adjacent panels automatically set in the specified target size.

Alternatively, the means to align the on-hook Plates also integrally from the top of the protrusions protruding ledge or cross-shaped profile projections be formed.

To increase the resilience of the means of the invention Laying tiles created come into play preferred development of the invention of the plate-facing Top of the sheeting from as a pedestal provided projections spaced support projections, whose plate-facing contact surfaces essentially in lie on the same level as the support surfaces facing the plate the projections provided as a pedestal. The Weight of the tiles of the covering as well as additional weights loads on the surface are not only in the corner areas of the slabs into the pedestal protrusions, but also via the support projections in the underground transfer.

The support projections are expediently frustoconical trained and to the by the groove-like Wells or the ledge or cross-shaped protrusions vertical planes of the adjacent one provided as a pillow block projection arranged.

Just like the projections provided as pedestals expediently also the support projections from the plane frusto-conical profiled, areas of the film web open at the bottom educated.

To the impact sound one by means of the web-shaped according to the invention Installation aid to dampen created flooring or due to different plate thickness or one unevenness occurring on uneven ground to balance the top of the slab topping Caps made of elastomeric material that can be attached to the support projections used so that the weight of the plates then over these elastic caps into the support projections is initiated. It is useful if different Caps are available, their material thickness in the over the contact surfaces of the support projections lying area has different strengths.

If the joints between the laid panels after manufacturing of the slab covering do not remain open, but to be filled in by sand or split, these can be Gaps on the underside between the pedestal protrusions be concluded by one end each in the radially outer end region of the groove-like depressions Adjacent joint bars in front of the Application of the plate covering can be provided. In particular when the strip-like joint bars with their upper area still in the space between step forward to the adjacent plates and / or additionally protruding laterally at least in some areas have narrow strip-shaped sections which the Underneath the plates, it is ensured that this in the Panel joints did not fill material introduced into the space trickle through between the panels and the laying aid can.

Alternatively, the joint bars can also be designed that the joint rod in the intended installation position in Gap space between adjacent floor slabs at least in a section from the top to the bottom continuous passages for the passage of liquids having. Through the passage of liquid and thus there are also water-permeable openings in the joint rod thus also a drainage of surface water via the Jointing possible.

The configuration is preferably such that between those to be held on neighboring pedestals End areas of the joint rod alternately on opposite Continuous sides from top to bottom Wells are provided. So the culverts are of these depressions in the side walls of the joint bar formed, which in the installed state then at their open Side closed by the adjoining front edge of the base plate are.

Alternatively, the configuration can also be such that that between those to be held on neighboring stilts End areas of the joint rod from the top to the bottom through openings are provided. The Openings as a whole are then only in the joint rod educated.

In the design with alternating on opposite Continuous depressions from top to bottom the recesses can be circular in cross-section, be trapezoidal or triangular or also have a wavy cross section. In case of Arrangement of through openings in the joint rod can do this Through openings in the form of slot-like slots have or be limited in cross-sectional shape.

The in the installation position in the horizontal direction perpendicular to Length of the joint rod measured width of the joint rod is essentially the same as that between the front edges from adjacent floor slabs to be installed Joint width. The joint rod then serves as a teaching Tools for adjusting the joint width.

The rectangular when installed in the vertical direction the height of the joint rod measured for the longitudinal extent Expediently chosen so that it is only installed in one lower part of the gap between two adjacent ones Floor plates comes forward. The one over the top The space remaining in the joint can then be used Filling material to be filled up, where appropriate as fine as possible fine gravel is used, the Grain is chosen so that it is not by the in the joint rod provided passages.

Alternatively, it can be installed in the vertical direction height of the measured at right angles to the longitudinal extent Joint bars are selected so that they are in the installed state over the entire vertical height of the gap between the joints extends. A backfilling of the joint with filling material is then not possible, but also not necessary. In both However, there is a drainage over the between the floor slabs existing joints possible.

Fig. 1

einen Abschnitt einer erfindungsgemäßen bahnenförmigen Verlegehilfe in schematisierter perspektivischer Darstellung;

Fig. 2

eine Schnittansicht durch einen Abschnitt eines mittels der erfindungsgemäßen bahnenförmigen Verlegehilfe auf einem Untergrund erstellten Platten-Belags in einer Schnittansicht mit einer in Fig. 1 durch die Pfeile 2-2 angedeuteten Schnittführung;

Fig. 3

den in Fig.2 innerhalb des strichpunktierten Bereichs 3 dargestellten Teilabschnitt in vergrößertem Maßstab;

Fig. 4

eine Draufsicht auf einen Teilabschnitt der erfindungsgemäßen bahnenförmigen Verlegehilfe in der Draufsicht, gesehen in Richtung des Pfeils 4 in Fig. 3;

Fig. 5

eine Schnittansicht der bahnenförmigen Verlegehilfe gesehen in Richtung der Pfeile 5-5 in Fig. 4;

Fig. 6

eine perspektivische Darstellung eines Fugenstabs, wie er zum Schließen der zwischen zwei auf der erfindungsgemäßen bahnenförmigen Verlegehilfe aufgelegten Platten bestehenden Fuge einsetzbar ist;

Fig. 7

eine Draufsicht auf den Fugenstab gesehen in Richtung des Pfeils 7 in Fig. 6;

Fig. 8

eine Vorderansicht des Fugenstabs gesehen in Richtung des Pfeils 8 in Fig. 7;

Fig. 9

eine perspektivische Darstellung eines abgewandelten Fugenstabs;

Fig. 10

eine Draufsicht auf die unmittelbaren Eckbereiche von vier auf einer erfindungsgemäßen Verlegehilfe aufgestelzten Platten, wobei in die Fuge zwischen den beiden unteren Platten ein Fugenstab der in Fig. 9 gezeigten Ausbildung eingelegt ist;

Fig. 11

eine Schnittansicht gesehen in Richtung der Pfeile 11-11;

Fig. 12

drei verschiedene Kappen aus elastomerem Material, welche zur Trittschalldämmung bzw. zum Höhenausgleich auf Stützvorsprüngen der erfindungsgemäßen Verlegehilfe aufsetzbar sind;

Fig. 13

eine Seitenansicht eines weiteren, gegenüber den in den Fig. 6 bis 9 gezeigten Fugenstab abgewandelten Fugenstabs;

Fig. 14

eine Draufsicht auf den Fugenstab, gesehen in Richtung des Pfeils 14 in Fig. 13;

Fig. 15

eine Draufsicht auf ein abgewandeltes Ausführungsbeispiel eines Fugenstabs mit trapezförmigen Vertiefungen;

Fig. 16

eine Draufsicht auf ein weiter abgewandeltes Ausführungsbeispiel eines Fugenstabs mit dreieckigen Vertiefungen;

Fig. 17

eine Draufsicht auf einen Fugenstab mit wellenförmigen Vertiefungen;

Fig. 18

eine Draufsicht auf einen Fugenstab mit langlochartigen durchgehenden Entwässerungs-Schlitzen; und

Fig. 19

eine Draufsicht auf einen Fugenstab mit kreisförmig begrenzten Durchgangsöffnungen für die Entwässerung.

The invention is explained in more detail in the following description in conjunction with the drawing, which shows:

Fig. 1

a portion of a sheet-shaped laying aid according to the invention in a schematic perspective view;

Fig. 2

a sectional view through a section of a panel covering created by means of the web-shaped laying aid according to the invention on a subsurface in a sectional view with a cut indicated in FIG. 1 by the arrows 2-2;

Fig. 3

the portion shown in Figure 2 within the dash-dotted area 3 on an enlarged scale;

Fig. 4

a plan view of a portion of the web-shaped laying aid according to the invention in plan view, seen in the direction of arrow 4 in Fig. 3;

Fig. 5

a sectional view of the web-shaped laying aid seen in the direction of arrows 5-5 in Fig. 4;

Fig. 6

a perspective view of a joint rod, as it can be used to close the existing between two on the web-shaped laying aid panels according to the invention existing joint;

Fig. 7

a plan view of the joint rod seen in the direction of arrow 7 in Fig. 6;

Fig. 8

a front view of the joint rod seen in the direction of arrow 8 in Fig. 7;

Fig. 9

a perspective view of a modified joint rod;

Fig. 10

a plan view of the immediate corner areas of four plates erected on a laying aid according to the invention, a joint rod of the design shown in FIG. 9 being inserted into the joint between the two lower plates;

Fig. 11

a sectional view seen in the direction of arrows 11-11;

Fig. 12

three different caps made of elastomeric material, which can be placed on impact protrusions of the laying aid according to the invention for impact sound insulation or for height compensation;

Fig. 13

a side view of another, compared to the joint rod shown in Figures 6 to 9 modified joint rod;

Fig. 14

a plan view of the joint rod, seen in the direction of arrow 14 in Fig. 13;

Fig. 15

a plan view of a modified embodiment of a joint bar with trapezoidal depressions;

Fig. 16

a plan view of a further modified embodiment of a joint rod with triangular depressions;

Fig. 17

a plan view of a joint rod with wavy depressions;

Fig. 18

a plan view of a joint rod with slot-like continuous drainage slots; and

Fig. 19

a plan view of a joint bar with circularly delimited through openings for drainage.

In Fig. 1 is a portion of a total designated 10 sheet-shaped laying aid for the creation of paving slabs on substrates such as balconies, Terraces etc. schematically illustrated. The web-shaped Laying aid has its own stiffness, however plastic film that can be rolled up by elastic bending 12 made of thermoplastic plastic from the top integral projections at predetermined intervals 14 step forward, each for supporting the corner areas of four plates meeting one another on a surface to be put on topping can be put on. The Protrusions 14 thus set in predetermined, from the plate size the distances depending on the slabs to be installed from the film 12 upward protruding pedestal exact shape and formation of these projections as well as the further, arranged offset to the projections 14 additional support tabs 36 will be discussed below with Figures 3 to 5 explained in more detail. recognizable is in Fig. 1 that in the later to be put on Plate facing top of the frustoconical Projections 14 groove-like intersecting at right angles Wells 16 are provided, in which according to Art the cross-shaped, also used when laying tiles Joint spacers can be used, which over the Step up the top of the projections 14 and their Later the width of the joints between neighboring ones Determine the tiles of the covering.

2 is a sectional view through a partial section a concrete slab 18 is shown, on which by means of an inventive web-shaped laying aid 10 a stilted Covering from base plates 20 is applied. Between the concrete slab 18, which is part of a Terrace or balcony, and that on theirs Web 10 placed on top is still in the illustrated case a moisture-proof coating 22, for example in the form of a bituminized sealing membrane shown, which can also be omitted in many cases, if the material of the serving as a carrier for the projections 14 Plastic film 12 is impermeable to water.

3 shows an enlarged detail from FIG. 2, an area where the corner areas of two adjacent plates 20 on a projection 14 of the web-shaped laying aid 10 are supported. It is recognizable that the projections 14 are integral from the plastic film 12 cup-shaped or cup-shaped Profilings are. The facing the plates 20 as Support surface 30 for the plates 20 serving the top of the Projections 14 are flat. In the top each projection 14, the ones already mentioned are rectangular crossing groove-like depressions 16 are formed, in which upward protruding spacers in Form of strips or fugitive crosses corresponding to that in Fig. 3 shown cross joint 26 can be used, its strip-shaped arms projecting upwards as stops for Setting the gap 28 between adjacent Plates 20 serve.

The undersides of the plates 20 are on top facing bearing surfaces 30 of the pedestal protrusions 14 as well as the bearing surface 32 offset from the Projections 14 provided support projections 36, the height of the support projections 36 is chosen so that their bearing surfaces 32 in a horizontal plane with the bearing surfaces 30 of the projections 14 lie. The support tabs 36 are - corresponding to those forming the pedestals Projections 14 - integral from the material of the plastic film 40 molded frusto-conical cups, whose diameter is significantly smaller than the diameter the pedestal protrusions 14. The dimensioning, number and Distribution of the support projections 36 can be dependent on the size and weight of the panels to be placed and the intended load on the slab surface compared to the changed representation shown in the drawing figures become.

Instead of cup-like truncated cone-shaped support projections can also have differently shaped profile projections be provided, the end faces of which are then supports for Form plates 20.

Instead of the groove-like depressions 16 for to be used Crosshairs 26 could also be integral upward strip-like projections of corresponding width on the Top 24 of the projections 14 may be provided. The illustrated and described design with groove-like depressions 16 opened for separate crosses 26 however here the advantageous possibility between 14 joint bars each adjacent pedestal projections 40 to be attached to the shape shown in FIGS. 6 to 8. These joint bars 40 have the basic shape of a flat, upright bar 42, which is so long is that their ends are each facing each other open mouths of the groove-like depressions 16 adjacent Projections 14 can be inserted. In the in the assembled position over the bearing surface 30 of the projections 14 areas protruding upwards is the bar at 44 chamfered on both sides at an angle, so that when you put it on later of plates 20 this automatically into a centered Be brought in which the joints 28 between neighboring panels have the specified target width. The Joint bars 40 shown also have their lateral flat sides protruding horizontally outwards narrow strip-shaped sections 46, which when finished laid tile covering the underside of the tiles 20 reach under in the edge area. These strip-shaped sections 46 serve on the one hand as an additional edition for the panels in the edge area and on the other hand prevent that filler material introduced into the joints 28 from above like sand or gravel to the underside of the plates 20 can pass through. The joint bars 40 thus enable that staged laying of panels 20 on the invention sheet-shaped laying aid with subsequent backfilling the panel joints.

When using joint bars 40 and the subsequent backfilling the joints between the slabs of fine gravel become the joints so largely closed that applied to the slab surface Surface water in the form of rain or the like Not or only to a limited extent through the joints in the space between the plates 20 of the plate surface and pass through the laying aid laid out on the ground can what in terms of rapid drainage the top of the plate itself is desired. 9 is a joint rod 48 modified with respect to joint rod 40 shown that a liquid passage through the joints allows without getting into the joints on the top introduced filling material such as fine gravel or the like also in the space between the slab and the surface mentioned can step through. As can be seen in the drawing, has the joint rod 48 between its rectangular cross-section, fits into the recesses 16 of the projections 14 insertable ends a wavy shape in plan view, so that when inserting this joint rod into the joint between two adjacent plates 20 alternately those that can be seen in FIG. 10 arising on opposite sides in the trough Passages 49 remain, through which water can penetrate while from the top into the joint introduced fine gravel etc. not by the resulting Can pass through, but then only the Fills the space above the joint bar 48, as shown in Fig. 11 is recognizable. Since the joint filler, i.e. the Fine gravel that is permeable to water, so this is aimed Ensures water permeability of the joint while coarse dirt is retained by the filling material.

Finally, in Fig. 12 there are three different caps 50a, 50b and 50c made of an elastomeric material - for example Rubber or an elastomeric plastic such as polyurethane or the like. - shown the shape of the floor have wells pointing upwards. The closed, in the representation of the floor surfaces pointing upwards Cups 50a, 50b and 50c each have different ones Strength, so that when placed on the support projections 36 Cut the plates 20, depending on the cap used 50a, 50b or 50c different distance from the support surface 32 of the support projections 36 have. These caps 50a, 50b and 50c decrease due to the damping properties of the elastomeric material used when walking on the Impact sound. You can also the caps to compensate for different strengths of the used Serve plates. 5 are on two support projections 36 caps 50a and 50c shown in phantom.

The one shown in FIG. 9 and one shown in FIGS. 13 and 14 Joint bars 48 and 114 have the shape of an elongated one and substantially rectangular in cross section Rod, the length of which is such that its end regions fits in half of one of the groove-like recesses 16 adjacent pedestals can be used, the Joint bars inserted over the upper flat side of the Step into the pedestal. The end areas of the joint rod can in other words, one arm section usually in Joint crosses used with such pedestals replace.

FIGS. 15 to 19 each have a different plan view designed further joint rods 114 shown, wherein the differences in those shown in Figs. 15 to 17 Joint bars on the cross-sectional shape of the recess 124 limited, instead of a circular arc Rounding trapezoidal (Fig. 15), triangular (Fig. 16) and wavy (Fig. 17) are formed. Deviating from this are the passages for the passage of water in the joint bars 114 according to FIGS. 18 and 19 of through openings 126 formed in the joint rods themselves, being these through openings 126 in the exemplary embodiment 18 of slot-like slots and in the embodiment 19 of circular through openings or holes are formed.

Claims (24)

1. Web-like aid (10) for laying slabs (20) in a raised or ventilated position on terraces and balconies, the web-like laying aid having a thin sheet web (12) of thermoplastic, from whose upper side, facing the covering slabs to be applied, in a depression corresponding to the distribution of the corner points of the slabs (20) of the covering slabs to be laid, projections (14) are provided as stilt supports, on which the corner regions of the slabs (20) to be laid can be placed in the predetermined laying pattern at a distance parallel to the base, characterized in that the projections (14) are formed by regions of the thin sheet web (12) which are shaped like pots, are open on the underside and are integrally moulded out of the plane of the thin sheet web from the material of the originally flat, inherently stiff thin sheet web (12), which can be rolled up, and in that in the closed upper side (24) of the protrusions (14), facing the slabs (20) to be supported on them, means are provided for aligning the slabs (20) to be laid on them at the predetermined joint spacing.
2. Laying aid according to Claim 1, characterized in that the means for aligning the slabs to be accommodated are formed by two groove-like depressions (16) which intersect at right angles at the centre of the upper side (24) of the protrusions (14) and into which strip-like or joint-cross-like joint spacer elements (26) projecting upwards towards the slabs (20) to be laid on them can be inserted.
3. Laying aid according to Claim 1, characterized in that the means for aligning the slabs (20) to be laid on are formed by strip-like or joint-cross-like profiled protrusions protruding integrally from the upper side of the protrusions (14).
4. Laying aid according to one of Claims 1 to 3, characterized in that, from the upper side of the thin sheet web (12) facing the slabs, supporting protrusions (36) spaced apart from the protrusions (14) provided as stilt supports protrude, their supporting surfaces (32) facing the slabs lying substantially in the same plane as the supporting surfaces (30) facing the slabs of the protrusions (14) provided as the supporting bearings.
5. Laying aid according to Claim 4, characterized in that the supporting protrusions (36) are each shaped like a truncated cone.
6. Laying aid according to Claim 2 or 3 and Claim 4 or 5, characterized in that the supporting protrusions (36) are arranged to be offset with respect to the vertical planes through the groove-like depressions (16) or the strip-like or joint-cross-like profiled protrusions of the respectively adjacent protrusions (14) provided as stilt supports.
7. Laying aid according to one of Claims 4 to 6, characterized in that the supporting protrusions (36) are formed as regions of the thin sheet web (12) which are open on the underside, are profiled in the shape of a truncated cone and are deformed out of the plane of the thin sheet web (12).
8. Laying aid according to one of Claims 4 to 7, characterized by caps (50a; 50b; 50c) of elastomeric material which can be placed on the supporting protrusions (36).
9. Laying aid according to Claim 8, characterized by caps (50a; 50b; 50c) whose material thickness exhibits different thicknesses in the region lying above the supporting surfaces (32) of the supporting protrusions (36).
10. Laying aid according to Claim 2, characterized by joint rods (40; 48; 114) which can in each case be inserted with one end into the radially outer end regions of the groove-like depressions (16) of adjacent protrusions (14).
11. Laying aid according to Claim 10, characterized in that the strip-like joint rods (40) still protrude with their upper region into the interspace (joints 28) between the adjacent slabs (20) to be laid on.
12. Laying aid according to Claim 10 or 11, characterized in that, from the joint rods (40), at least in some regions, narrow strip-like sections (46) protrude laterally, which engage underneath the undersides of the slabs (20) to be laid on.
13. Laying aid according to Claim 10 or 11, characterized in that, in the proper installation position in the joint interspace between adjacent slabs (20), at least in a subregion, the joint rod (48; 114) has apertures (124; 126) going through from the upper side to the underside for the passage of liquids.
14. Laying aid according to Claim 13, characterized in that, between the end regions of the joint rod (114) to be held on adjacent stilt supports (14), depressions (124) going through from the upper side to the underside are provided alternately on opposite sides.
15. Laying aid according to Claim 13, characterized in that, between the end regions of the joint rod (114) to be held on adjacent stilt supports (14), through holes (126) going through from the upper side to the underside are provided.
16. Laying aid according to Claim 14, characterized in that the depressions (124) are bounded in the shape of a circular arc in cross section.
17. Laying aid according to Claim 14, characterized in that the depressions (124) are bounded in the shape of a trapezium in cross section.
18. Laying aid according to Claim 14, characterized in that the depressions (124) are bounded in the shape of a triangle in cross section.
19. Laying aid according to Claim 14, characterized in that the depressions (124) have a wavy cross section.
20. Laying aid according to Claim 14, characterized in that the through openings (126) have the shape of continuous slots like elongated holes.
21. Laying aid according to Claim 14, characterized in that the through openings (126) are bounded in the shape of a circular cross section.
22. Laying aid according to one of Claims 13 to 21, characterized in that the width of the joint rods (114) measured at right angles to the longitudinal extent in the horizontal direction in the installed position is substantially equal to the joint width to be set between the front edges of adjacent slabs (20) to be laid.
23. Laying aid according to one of Claims 13 to 22, characterized in that, in the installed state, the joint rods (114) project only into a lower subregion of the joint interspace of two adjacent slabs (20).
24. Laying aid according to one of Claims 13 to 23, characterized in that the height of the joint rods (114), measured in the vertical direction in the installed state, is chosen such that, in the installed state, they extend over the entire vertical height of the joint interspace of two adjacent slabs (20).

Images