EP0906989A1 - Dowel for anchoring artificial grass tufts in the ground and device for inserting the dowel in the ground - Google Patents

Dowel for anchoring artificial grass tufts in the ground and device for inserting the dowel in the ground Download PDF

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Publication number
EP0906989A1
EP0906989A1 EP98112746A EP98112746A EP0906989A1 EP 0906989 A1 EP0906989 A1 EP 0906989A1 EP 98112746 A EP98112746 A EP 98112746A EP 98112746 A EP98112746 A EP 98112746A EP 0906989 A1 EP0906989 A1 EP 0906989A1
Authority
EP
European Patent Office
Prior art keywords
dowel
ground
floor
synthetic fibers
mandrel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98112746A
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German (de)
French (fr)
Inventor
Aaron Bau-Ing. Daly (Ba)
Rainer Dipl.-Ing. Fischer (Fh)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fischerwerke Artur Fischer GmbH and Co KG
Original Assignee
Fischerwerke Artur Fischer GmbH and Co KG
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Filing date
Publication date
Application filed by Fischerwerke Artur Fischer GmbH and Co KG filed Critical Fischerwerke Artur Fischer GmbH and Co KG
Publication of EP0906989A1 publication Critical patent/EP0906989A1/en
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/08—Surfaces simulating grass ; Grass-grown sports grounds
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/08—Surfaces simulating grass ; Grass-grown sports grounds
    • E01C2013/086—Combination of synthetic and natural grass

Definitions

  • the invention relates to a dowel for anchoring synthetic fibers of an artificial turf in the floor and a device for inserting the anchor into the floor.
  • the invention provides a dowel in which the synthetic fibers are similar to a Thread into a needle or wool into a crochet hook.
  • the dowel with the synthetic fibers are pressed into the ground, the synthetic fibers being U-shaped fold.
  • the assembly point is located on the dowel.
  • the dowel anchors the synthetic fibers even at a limited depth of only approx. 10, for example cm with sufficient hold against pulling out in the floor.
  • the holding values of the synthetic fibers in the ground are several times lower in spite of the reduced insertion depth Comparison with synthetic fiber bundles, which are inserted into the floor without dowels.
  • the dowel also supports natural grass, the roots of which are those with the dowel in the ground loop around anchored synthetic fibers.
  • Another advantage of the dowel according to the invention is that this anchors the synthetic fibers to the ground with a high holding force, if roots of natural grass sown around the synthetic fibers, the synthetic fibers in the Have not yet wrapped around the floor.
  • the sports field is therefore immediately after Setting the artificial turf usable, at least as far as it is the artificial turf and not the Natural grass affects. In any case, the sports field is therefore earlier after seating of artificial turf and sowing of natural turf can be used if the artificial turf with the dowels according to the invention is anchored in the ground.
  • An embodiment of the invention has a slot for threading the synthetic fibers Through hole, an eyelet, a hook or the like.
  • This device for attaching the synthetic fibers is preferred so arranged on the dowel that a tensile stress on the synthetic fibers the synthetic fibers do not exert a tilting moment on the dowel about a transverse axis of the dowel, to avoid turning the dowel inserted into the floor.
  • a force application point the synthetic fibers are therefore preferably located behind a longitudinal center of the dowel.
  • a further development of the dowel according to the invention has one or more pull-out blocking elements for example in the form of diagonally protruding backwards and outwards, spring pawls. These are when the expansion anchor is pressed into the Pressed inwards and spread out after pushing in the anchor Floor, whereby they penetrate the floor and thereby prevent the plug from being pulled out anchor in the ground. It is also possible to screw the dowel preferably large thread depth or with circumferential ribs that form the dowel anchor it to the floor by positive locking.
  • the dowel is preferably provided with a device with which it can be detachably attached to one Device for inserting the dowel can be attached to the floor.
  • the device can be, for example, an axial hole in the dowel with which it can be attached to the Device can be plugged on.
  • the device according to the invention for introducing the dowel into the floor has a mandrel on which the dowel can be attached, for example.
  • the dowel is after Attach the synthetic fibers to the dowel and place the dowel on the mandrel with the Thorn pressed into the ground. Attaching the synthetic fibers to the dowel, putting them on the dowel on the mandrel and inserting the dowel into the ground can be done by hand or done mechanically.
  • the mandrel of the device projects into the ground above the dowel attached to it.
  • This has the advantage that the mandrel preforms a hole in the bottom, which makes the dowel when Inserting it into the ground is only slightly stressed. Damage to the particular Plastic dowels that affect its anchoring ability could be caused by the when the dowel is inserted into the floor avoided the dowel projecting.
  • the device according to the invention for introducing the dowel into the ground Device for specifying or limiting the insertion depth of the dowel.
  • This can be, for example, a scale on the mandrel on which the insertion depth of the dowel can be read is.
  • the mandrel can have a ring-shaped diameter widening or have a laterally protruding stop.
  • the dowel 10 according to the invention shown in FIGS. 1a-c is for anchoring Synthetic fibers of an artificial turf are provided in the ground.
  • the dowel 10 has a short, cylindrical plug body 12, which is located at a front or insertion end 14 tapered to a smaller diameter. On a side facing away from the insertion end 14 The dowel body 12 extends its diameter on a collar 16 with a rounded transition.
  • Four of this bundle 16 are distributed over the circumference arranged pawls 18 integral with the dowel body 12 obliquely to the rear and outside of the dowel body 12.
  • the pawls 18 are resilient, they are pressed radially inwards when the dowel 10 is pressed into the ground and spread radially into their original position after being pressed in.
  • the dowel body 12 is provided with a V-shaped transverse slot 20, which is open at the insertion end 14 and tapers towards the rear of the dowel 10.
  • a threading hole 22 which extends transversely through the dowel body 12 and which is open at one point on its circumference, so that the transverse slot 20 merges into the threading hole 22 without interruption.
  • the transverse slot 20 and threading hole 22 have a shape similar to a keyhole in the side view of the dowel 12 with a V-shaped widening Key bit ", which is formed by the V-shaped transverse groove 20.
  • the dowel body has a device for inserting the dowel 10 into the floor 12 a through axial hole 24 ( Figure 1b), which is at right angles in the threading hole 22 opens.
  • the embodiment of the invention shown in the drawing Dowel 10 is a plastic injection molded part.
  • FIGS. 2a-c show an embodiment modified from FIGS. 1a-c of an anchor 10 according to the invention. To avoid repetitions the differences are described below, otherwise the References to Figures 1a-c referenced. For the same parts become the same Reference numbers used.
  • the dowel 10 shown in FIGS. 2a-c has a threading bracket 26 instead of the Cross slot 20 and the threading hole 22.
  • the threading bracket 26 is integral with the dowel body 12, it is located on the side facing away from the insertion end 14 of the plug body 12.
  • the continuous axial hole 24 passes through the plug body 12 over its entire length and does not run openly in the widening transverse slot 20 from, as is the case with the dowel 10 shown in FIGS. 1a-c.
  • Dowel body 12 protruding threading bracket 26 has the advantage that when train on not shown in Figures 2a - c, threaded through the threading bracket Synthetic fibers do not have a moment on the dowel which rotates the dowel 10 about a transverse axis 10 is exercised, but on the contrary, such a move on by Threading bracket 26 synthetic fibers threaded the dowel 10 in its longitudinal orientation stabilized.
  • the dowel 10 shown in FIGS. 2a-c has only two pawls 18 on. Otherwise, the two shown in Figures 1a-c and Figures 2a-c are correct Dowel 10 match.
  • FIG. 3 shows the anchoring of artificial turf using dowels 10 according to the invention shown as a sketch.
  • the artificial turf has bundles of, for example, six synthetic fibers on, which are twisted together in a central region 28. At the ends of the Synthetic fiber bundle 30, the synthetic fibers are not twisted together, they form synthetic fiber tufts 32.
  • the twisted synthetic fibers 28 are in the middle of the synthetic fiber bundle 30 through the transverse slot 20 into the threading hole 22 of the dowel 10 or that Synthetic fiber bundle 30 is threaded into the threading bracket 26 from one end to the middle. Then each synthetic fiber bundle 30 with the dowel 10 first in the Bottom 34 pressed in. The synthetic fiber bundle 30 is in the middle of it is threaded into the dowel 10, folded into a U-shape. The synthetic fiber tufts 32 on the ends of the synthetic fiber bundle 30 protrude from the ground 34 as artificial turf.
  • the spring-elastic pawls 18 are when the dowel 10 is pressed into the Bottom 34 compressed and spread again after insertion, whereby they penetrate into the floor 34 and in this way anchor the dowel 10 with the attached synthetic fiber bundle 30 in the bottom 34.
  • the dowel 10 prevents pulling out of the synthetic fiber bundle 32 from the bottom 34.
  • the one in the figures is on the left 1a-c shown dowels 10, on the right the dowels 10 shown in Figures 2a-c drawn.
  • Natural grass 36 After anchoring the synthetic fiber bundle 30 in the floor 34 by means of the dowel 10 Natural grass 36 sown between the synthetic fiber bundles 30 forming the artificial grass. root 38 of the natural grass 36 wrap around the synthetic fiber bundles 30 in the ground 34, whereby on the one hand the hold of the synthetic fiber bundle 30 and on the other hand also the hold of the natural grass 36 in the ground 34 can be enlarged.
  • FIG. 4 shows a device 40 for inserting an anchor 10 according to the invention in the ground.
  • the device 40 has a mandrel 42, the diameter of which is slight is smaller than a diameter of the dowel body 12.
  • the mandrel 42 tapers a ring step 44 to a pin-shaped receptacle 46, on which the dowel 10 with its Axial hole 24 is plugged.
  • the receptacle 46 projects forward over the dowel 10, it ends with an insertion tip 48.
  • One to be anchored to the dowel 10 Synthetic fiber bundle is by threading into the threading hole 22 or into the threading bracket 26 (FIGS. 1a-c, 2a-c) are attached to the dowel 10 before the dowel 46 is put on.
  • the dowel 10 is placed on the receptacle 46 of the mandrel 42 the synthetic fiber bundle and, if applicable, the threading bracket 26 pushed to the side
  • the synthetic fiber bundle is not shown in FIG.
  • the mandrel 42 increases with an annular step 50, which limits its depth of insertion into the ground and thereby a depth of penetration of the dowel 10 specifies.
  • the dowel 10 attached to the receptacle 46 is threaded into it Synthetic fiber bundle inserted into the ground by means of the device 40. Subsequently the device 40 is pulled out, whereas the dowel 10 with the synthetic fiber bundle 30 remains in the bottom 34 as shown in FIG. Inserting the dowel 10 in the ground by means of the device 40 can be done manually or mechanically.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Clamps And Clips (AREA)
  • Drying Of Solid Materials (AREA)
  • Road Paving Structures (AREA)
  • Floor Finish (AREA)
  • Cultivation Of Plants (AREA)

Abstract

The peg has a peg body (12) having a unit (20) for receiving the fibres (28). The peg body has a slit (20), a through hole (22), an eyelet or similar for receiving the fibres. The plug has a pull-out lock element (18) which enables the peg to be secured on the ground.

Description

Die Erfindung betrifft einen Dübel zur Verankerung von Kunstfasern eines Kunstrasens im Boden sowie eine Vorrichtung zum Einbringen des Dübels in den Boden.The invention relates to a dowel for anchoring synthetic fibers of an artificial turf in the floor and a device for inserting the anchor into the floor.

Zum Setzen von Kunstfasern als Kunstrasen beispielsweise auf Sportplätzen ist es bekannt, Bündel von Kunstfasern in einem Mittelbereich miteinander zu verdrillen. Im Endbereich sind die Kunstfasern nicht miteinander verdrillt, sie bilden Faserbündel. Verwendet werden beispielsweise Polypropylenfasern, die vorzugsweise grün eingefärbt sind. Ungefähr in der Mitte werden die Kunstfaserbündel U-förmig zusammengelegt und mit der Zusammenlegestelle voran etwa 20 cm tief in den Boden hineingedrückt. Die unverdrillten, büschelformenden Endbereiche der Kunstfasern bilden außerhalb des Bodens den eigentlichen Kunstrasen. Zwischen den Kunstfaserbündeln wird Naturrasen gesät, dessen Wurzeln die Kunstfaserbündel im Boden umschlingen und den Kunstfaserbündeln Halt im Boden geben.For setting synthetic fibers as artificial turf, for example on sports fields, it is known Twisting bundles of synthetic fibers together in a central area. In the end area if the synthetic fibers are not twisted together, they form fiber bundles. Used For example, polypropylene fibers, which are preferably dyed green are. Approximately in the middle, the synthetic fiber bundles are folded together in a U-shape with the assembly point first pressed about 20 cm deep into the ground. The untwisted, tuft-forming end regions of the synthetic fibers form outside the Ground the actual artificial turf. Natural grass becomes between the synthetic fiber bundles sown, the roots of which wrap around the synthetic fiber bundles in the soil and the synthetic fiber bundles Give hold in the ground.

Auf Sportplätzen mit Rasenheizung steht zum Einstecken der Kunstfaserbündel in den Boden nur eine Tiefe von ca. 10 cm zur Verfügung. Diese Tiefe reicht nicht aus, um den Faserbündeln ausreichenden Halt im Boden zu geben.On sports fields with lawn heating you can insert the synthetic fiber bundle into the Only a depth of approx. 10 cm is available. This depth is not sufficient for the To give fiber bundles sufficient hold in the ground.

Es ist daher Aufgabe der Erfindung, eine Verankerung für Kunstfasern eines Kunstrasens so auszubilden, daß der Kunstrasen auch bei begrenzter Bodentiefe ausreichenden Halt hat. It is therefore an object of the invention to anchor for synthetic fibers of an artificial turf to be trained so that the artificial turf is sufficient even with limited soil depth Has hold.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale der Ansprüche 1 und 5 gelöst. Die Erfindung sieht einen Dübel vor, in den die Kunstfasern ähnlich wie ein Faden in eine Nadel oder Wolle in eine Häkelnadel eingefädelt werden. Der Dübel mit den Kunstfasern wird in den Boden hineingedrückt, wobei sich die Kunstfasern U-förmig zusammenlegen. Dabei befindet sich die Zusammenlegestelle am Dübel. Der Dübel verankert die Kunstfasern auch bei einer begrenzten Tiefe von beispielsweise nur ca. 10 cm mit ausreichendem Halt gegen Herausziehen im Boden. Die Haltewerte der Kunstfasern im Boden sind trotz um die Hälfte reduzierter Einbringtiefe um ein mehrfaches im Vergleich mit Kunstfaserbündeln erhöht, die ohne Dübel in den Boden eingesteckt sind. Auch gibt der Dübel Naturrasen Halt, dessen Wurzeln die mit dem Dübel im Boden verankerten Kunstfasern umschlingen. Weiterer Vorteil des erfindungsgemäßen Dübels ist, daß dieser die Kunstfasern schon dann mit hoher Haltekraft im Boden verankert, wenn Wurzeln von um die Kunstfasern herum gesätem Naturrasen die Kunstfasern im Boden noch nicht umschlungen haben. Der Sportplatz ist daher unmittelbar nach dem Setzen des Kunstrasens benutzbar, jedenfalls soweit es den Kunstrasen und nicht den Naturrasen betrifft. Der Sportplatz ist deswegen in jedem Fall früher nach dem Setzen des Kunstrasens und Säen des Naturrasens benutzbar, wenn der Kunstrasen mit den erfindungsgemäßen Dübeln im Boden verankert ist.This object is achieved by the features of claims 1 and 5 solved. The invention provides a dowel in which the synthetic fibers are similar to a Thread into a needle or wool into a crochet hook. The dowel with the synthetic fibers are pressed into the ground, the synthetic fibers being U-shaped fold. The assembly point is located on the dowel. The dowel anchors the synthetic fibers even at a limited depth of only approx. 10, for example cm with sufficient hold against pulling out in the floor. The holding values of the synthetic fibers in the ground are several times lower in spite of the reduced insertion depth Comparison with synthetic fiber bundles, which are inserted into the floor without dowels. The dowel also supports natural grass, the roots of which are those with the dowel in the ground loop around anchored synthetic fibers. Another advantage of the dowel according to the invention is that this anchors the synthetic fibers to the ground with a high holding force, if roots of natural grass sown around the synthetic fibers, the synthetic fibers in the Have not yet wrapped around the floor. The sports field is therefore immediately after Setting the artificial turf usable, at least as far as it is the artificial turf and not the Natural grass affects. In any case, the sports field is therefore earlier after seating of artificial turf and sowing of natural turf can be used if the artificial turf with the dowels according to the invention is anchored in the ground.

Zum Einfädeln der Kunstfasern weist eine Ausgestaltung der Erfindung einen Schlitz, ein Durchgangsloch, eine Öse, einen Haken oder dgl. als Einrichtung zum Anbringen der Kunstfasern auf. Dabei ist diese Einrichtung zum Anbringen der Kunstfasern vorzugsweise so am Dübel angeordnet, daß bei einer Zugbeanspruchung an den Kunstfasern die Kunstfasern kein Kippmoment um eine Querachse des Dübels auf den Dübel ausüben, um ein Drehen des in den Boden eingesteckten Dübels zu vermeiden. Ein Kraftangriffspunkt der Kunstfasern befindet sich also vorzugsweise hinter einer Längsmitte des Dübels.An embodiment of the invention has a slot for threading the synthetic fibers Through hole, an eyelet, a hook or the like. As a device for attaching the Synthetic fibers. This device for attaching the synthetic fibers is preferred so arranged on the dowel that a tensile stress on the synthetic fibers the synthetic fibers do not exert a tilting moment on the dowel about a transverse axis of the dowel, to avoid turning the dowel inserted into the floor. A force application point the synthetic fibers are therefore preferably located behind a longitudinal center of the dowel.

Eine Weiterbildung des erfindungsgemäßen Dübels weist ein oder mehrere Ausziehsperrelemente beispielsweise in Form schräg nach hinten und außen abstehender, federnder Sperrklinken auf. Diese werden beim Eindrücken des Spreizdübels in den Boden nach innen gedrückt und spreizen sich nach dem Eindrücken des Dübels in den Boden auf, wobei sie in den Boden eindringen und dadurch den Dübel gegen Ausziehen im Boden verankern. Auch ist es möglich, den Dübel mit einem Gewinde vorzugsweise großer Gewindetiefe oder auch mit umlaufenden Rippen auszubilden, die den Dübel durch Formschluß im Boden verankern.A further development of the dowel according to the invention has one or more pull-out blocking elements for example in the form of diagonally protruding backwards and outwards, spring pawls. These are when the expansion anchor is pressed into the Pressed inwards and spread out after pushing in the anchor Floor, whereby they penetrate the floor and thereby prevent the plug from being pulled out anchor in the ground. It is also possible to screw the dowel preferably large thread depth or with circumferential ribs that form the dowel anchor it to the floor by positive locking.

Vorzugsweise ist der Dübel mit einer Einrichtung versehen, mit der er lösbar an einer Vorrichtung zum Einbringen des Dübels in den Boden anbringbar ist. Eine solche Einrichtung kann beispielsweise ein Axialloch im Dübel sein, mit der er auf die Vorrichtung aufsteckbar ist.The dowel is preferably provided with a device with which it can be detachably attached to one Device for inserting the dowel can be attached to the floor. Such The device can be, for example, an axial hole in the dowel with which it can be attached to the Device can be plugged on.

Die erfindungsgemäße Vorrichtung zum Einbringen des Dübels in den Boden weist einen Dorn auf, auf den der Dübel beispielsweise aufsteckbar ist. Der Dübel wird nach Anbringen der Kunstfasern am Dübel und Aufstecken des Dübels auf den Dorn mit dem Dorn in den Boden gedrückt. Das Anbringen der Kunstfasern am Dübel, das Aufsetzen des Dübels auf den Dorn und das Einstecken des Dübels in den Boden kann von Hand oder maschinell erfolgen.The device according to the invention for introducing the dowel into the floor has a mandrel on which the dowel can be attached, for example. The dowel is after Attach the synthetic fibers to the dowel and place the dowel on the mandrel with the Thorn pressed into the ground. Attaching the synthetic fibers to the dowel, putting them on the dowel on the mandrel and inserting the dowel into the ground can be done by hand or done mechanically.

Bei einer Weiterbildung der erfindungsgemäßen Vorrichtung zum Einbringen des Dübels in den Boden steht der Dorn der Vorrichtung über den an ihm angebrachten Dübel vor. Dies hat den Vorteil, daß der Dorn ein Loch im Boden vorformt, wodurch der Dübel beim Einstecken in den Boden allenfalls gering beansprucht wird. Beschädigungen des insbesondere aus Kunststoff bestehenden Dübels, die sein Verankerungsvermögen beeinträchtigen könnten, werden durch den beim Einstecken des Dübels in den Boden über den Dübel vorstehenden Dorn vermieden.In a development of the device according to the invention for inserting the dowel the mandrel of the device projects into the ground above the dowel attached to it. This has the advantage that the mandrel preforms a hole in the bottom, which makes the dowel when Inserting it into the ground is only slightly stressed. Damage to the particular Plastic dowels that affect its anchoring ability could be caused by the when the dowel is inserted into the floor avoided the dowel projecting.

Um den Dübel einfach in einer vorgegebenen Einbringtiefe im Boden setzen zu können, weist die erfindungsgemäße Vorrichtung zum Einbringen des Dübels in den Boden eine Einrichtung zur Angabe bzw. zur Begrenzung der Einbringtiefe des Dübels auf. Dies kann beispielsweise eine Skala am Dorn sein, an der die Einbringtiefe des Dübels ablesbar ist. Zur Begrenzung der Einbringtiefe kann der Dorn eine ringstufenförmige Durchmessererweiterung oder einen seitlich abstehenden Anschlag aufweisen.In order to be able to simply place the dowel in the floor at a specified insertion depth, the device according to the invention for introducing the dowel into the ground Device for specifying or limiting the insertion depth of the dowel. This can be, for example, a scale on the mandrel on which the insertion depth of the dowel can be read is. To limit the insertion depth, the mandrel can have a ring-shaped diameter widening or have a laterally protruding stop.

Die Erfindung wird nachfolgend anhand in der Zeichnung dargestellter Ausführungsbeispiele näher erläutert. Es zeigen:

Figuren 1a - c
zwei Ausführungsformen erfindungsgemäßer Dübel in
Figuren 2a - c
Seitenansicht, Stirnansicht von vorn und in perspektivischer Darstellung;
Figur 3
einen schematisierten Vertikalschnitt eines Bodens mit erfindungsgemäß verankertem Kunstrasen; und
Figur 4
eine perspektivische Darstellung einer erfindungsgemäßen Vorrichtung zum Einstecken eines an ihr lösbar angebrachten Dübels in einen Boden in perspektivischer Darstellung.
The invention is explained in more detail below with reference to exemplary embodiments shown in the drawing. Show it:
Figures 1a-c
two embodiments of dowels according to the invention in
Figures 2a-c
Side view, front view from the front and in perspective;
Figure 3
a schematic vertical section of a floor with artificial grass anchored according to the invention; and
Figure 4
a perspective view of a device according to the invention for inserting a dowel detachably attached to it in a floor in a perspective view.

Der in Figuren 1a - c dargestellte, erfindungsgemäße Dübel 10 ist zur Verankerung von Kunstfasern eines Kunstrasens im Boden vorgesehen. Der Dübel 10 weist einen kurzen, zylindrischen Dübelkörper 12 auf, der sich an einem vorderen - oder Einsteckende 14 konisch auf einen kleineren Durchmesser verjüngt. Auf einer dem Einsteckende 14 abgewandten Seite erweitert der Dübelkörper 12 seinen Durchmesser an einem Bund 16 mit gerundetem Übergang. Von diesem Bund 16 stehen vier über den Umfang verteilt angeordnete, mit dem Dübelkörper 12 einstückige Sperrklinken 18 schräg nach hinten und außen vom Dübelkörper 12 ab. Die Sperrklinken 18 sind elastisch federnd, sie werden beim Eindrücken des Dübels 10 in den Boden radial nach innen gedrückt und spreizen sich nach dem Eindrücken radial in ihre ursprüngliche Stellung auf.The dowel 10 according to the invention shown in FIGS. 1a-c is for anchoring Synthetic fibers of an artificial turf are provided in the ground. The dowel 10 has a short, cylindrical plug body 12, which is located at a front or insertion end 14 tapered to a smaller diameter. On a side facing away from the insertion end 14 The dowel body 12 extends its diameter on a collar 16 with a rounded transition. Four of this bundle 16 are distributed over the circumference arranged pawls 18 integral with the dowel body 12 obliquely to the rear and outside of the dowel body 12. The pawls 18 are resilient, they are pressed radially inwards when the dowel 10 is pressed into the ground and spread radially into their original position after being pressed in.

Zum Anbringen in Figur 1 nicht dargestellter Kunstfasern ist der Dübelkörper 12 mit einem V-förmigen Querschlitz 20 versehen, der am Einsteckende 14 offen ist und sich zur Rückseite des Dübels 10 hin verjüngt. Am Grund des Querschlitzes 20 ist ein quer durch den Dübelkörper 12 durchgehendes Einfädelloch 22 angebracht, das an einer Stelle seines Umfangs offen ist, so daß der Querschlitz 20 ohne Unterbrechung in das Einfädelloch 22 übergeht. Querschlitz 20 und Einfädelloch 22 haben in Seitenansicht des Dübels 12 eine einem Schlüsselloch ähnliche Form mit sich V-förmig erweiterndem

Figure 00040001
Schlüsselbart", der von der V-förmigen Quernut 20 gebildet ist.To attach synthetic fibers (not shown in FIG. 1), the dowel body 12 is provided with a V-shaped transverse slot 20, which is open at the insertion end 14 and tapers towards the rear of the dowel 10. At the bottom of the transverse slot 20 there is a threading hole 22 which extends transversely through the dowel body 12 and which is open at one point on its circumference, so that the transverse slot 20 merges into the threading hole 22 without interruption. The transverse slot 20 and threading hole 22 have a shape similar to a keyhole in the side view of the dowel 12 with a V-shaped widening
Figure 00040001
Key bit ", which is formed by the V-shaped transverse groove 20.

Als Einrichtung zum lösbaren Anbringen an einer in Figur 4 dargestellten, noch zu beschreibenden Vorrichtung zum Einbringen des Dübels 10 in den Boden weist der Dübelkörper 12 ein durchgehendes Axialloch 24 (Figur 1b) auf, das rechtwinklig in das Einfädelloch 22 mündet. Das in der Zeichnung dargestellte Ausführungsbeispiel des erfindungsgemäßen Dübels 10 ist ein Kunststoffspritzgießteil. As a device for detachable attachment to one to be described in FIG. 4, to be described The dowel body has a device for inserting the dowel 10 into the floor 12 a through axial hole 24 (Figure 1b), which is at right angles in the threading hole 22 opens. The embodiment of the invention shown in the drawing Dowel 10 is a plastic injection molded part.

In Figuren 2a - c ist eine gegenüber Figuren 1a - c abgewandelte Ausführungsform eines erfindungsgemäßen Dübels 10 dargestellt. Zur Vermeidung von Wiederholungen werden nachfolgend die Unterschiede beschrieben, im übrigen wird auf die Ausführungen zu Figuren 1a - c verwiesen. Für gleiche Teile werden gleiche Bezugszahlen verwendet.FIGS. 2a-c show an embodiment modified from FIGS. 1a-c of an anchor 10 according to the invention. To avoid repetitions the differences are described below, otherwise the References to Figures 1a-c referenced. For the same parts become the same Reference numbers used.

Der in Figuren 2a - c dargestellte Dübel 10 weist einen Einfädelbügel 26 anstelle des Querschlitzes 20 und des Einfädellochs 22 auf. Der Einfädelbügel 26 ist einstückig mit dem Dübelkörper 12, er befindet sich auf der dem Einsteckende 14 abgewandten Seite des Dübelkörpers 12. Das durchgehende Axialloch 24 durchsetzt den Dübelkörper 12 auf seiner gesamten Länge und läuft nicht offen im sich erweiternden Querschlitz 20 aus, wie es bei dem in Figuren 1a - c dargestellten Dübel 10 der Fall ist. Der vom Dübelkörper 12 nach hinten abstehende Einfädelbügel 26 hat den Vorteil, daß bei Zug auf in Figuren 2a - c nicht dargestellte, durch den Einfädelbügel eingefädelte Kunstfasern kein den Dübel 10 um eine Querachse drehendes Moment auf den Dübel 10 ausgeübt wird, sondern daß im Gegenteil ein solcher Zug auf durch den Einfädelbügel 26 gefädelte Kunstfasern den Dübel 10 in seiner Längsausrichtung stabilisiert.The dowel 10 shown in FIGS. 2a-c has a threading bracket 26 instead of the Cross slot 20 and the threading hole 22. The threading bracket 26 is integral with the dowel body 12, it is located on the side facing away from the insertion end 14 of the plug body 12. The continuous axial hole 24 passes through the plug body 12 over its entire length and does not run openly in the widening transverse slot 20 from, as is the case with the dowel 10 shown in FIGS. 1a-c. The from Dowel body 12 protruding threading bracket 26 has the advantage that when train on not shown in Figures 2a - c, threaded through the threading bracket Synthetic fibers do not have a moment on the dowel which rotates the dowel 10 about a transverse axis 10 is exercised, but on the contrary, such a move on by Threading bracket 26 synthetic fibers threaded the dowel 10 in its longitudinal orientation stabilized.

Des weiteren weist der in Figuren 2a - c dargestellte Dübel 10 nur zwei Sperrklinken 18 auf. Im übrigen stimmen die beiden in Figuren 1a - c und Figuren 2a - c dargestellten Dübel 10 überein.Furthermore, the dowel 10 shown in FIGS. 2a-c has only two pawls 18 on. Otherwise, the two shown in Figures 1a-c and Figures 2a-c are correct Dowel 10 match.

In Figur 3 ist die Verankerung von Kunstrasen mittels erfindungsgemäßer Dübel 10 skizzenartig dargestellt. Der Kunstrasen weist Bündel von beispielsweise sechs Kunstfasern auf, die in einem Mittelbereich 28 miteinander verdrillt sind. An den Enden des Kunstfaserbündels 30 sind die Kunstfasern nicht miteinander verdrillt, sie bilden Kunstfaserbüschel 32.FIG. 3 shows the anchoring of artificial turf using dowels 10 according to the invention shown as a sketch. The artificial turf has bundles of, for example, six synthetic fibers on, which are twisted together in a central region 28. At the ends of the Synthetic fiber bundle 30, the synthetic fibers are not twisted together, they form synthetic fiber tufts 32.

In der Mitte des Kunstfaserbündels 30 werden die miteinander verdrillten Kunstfasern 28 durch den Querschlitz 20 in das Einfädelloch 22 des Dübels 10 eingefädelt oder das Kunstfaserbündel 30 wird von einem Ende her bis zur Mitte in den Einfädelbügel 26 eingefädelt. Anschließend wird jedes Kunstfaserbündel 30 mit dem Dübel 10 voran in den Boden 34 hineingedrückt. Dabei wird das Kunstfaserbündel 30 in seiner Mitte, an der es in den Dübel 10 eingefädelt ist, U-förmig zusammengelegt. Die Kunstfaserbüschel 32 an den Enden des Kunstfaserbündels 30 stehen als Kunstrasen aus dem Boden 34 vor.The twisted synthetic fibers 28 are in the middle of the synthetic fiber bundle 30 through the transverse slot 20 into the threading hole 22 of the dowel 10 or that Synthetic fiber bundle 30 is threaded into the threading bracket 26 from one end to the middle. Then each synthetic fiber bundle 30 with the dowel 10 first in the Bottom 34 pressed in. The synthetic fiber bundle 30 is in the middle of it is threaded into the dowel 10, folded into a U-shape. The synthetic fiber tufts 32 on the ends of the synthetic fiber bundle 30 protrude from the ground 34 as artificial turf.

Die federelastischen Sperrklinken 18 werden beim Eindrücken des Dübels 10 in den Boden 34 zusammengedrückt und spreizen sich nach dem Einstecken wieder auf, wobei sie in den Boden 34 eindringen und verankern auf diese Weise den Dübel 10 mit dem an ihm angebrachten Kunstfaserbündel 30 im Boden 34. Der Dübel 10 verhindert ein Ausziehen des Kunstfaserbündels 32 aus dem Boden 34. In Figur 3 ist links der in Figuren 1a - c dargestellte Dübel 10, rechts der in Figuren 2a - c dargestellte Dübel 10 gezeichnet.The spring-elastic pawls 18 are when the dowel 10 is pressed into the Bottom 34 compressed and spread again after insertion, whereby they penetrate into the floor 34 and in this way anchor the dowel 10 with the attached synthetic fiber bundle 30 in the bottom 34. The dowel 10 prevents pulling out of the synthetic fiber bundle 32 from the bottom 34. In FIG. 3, the one in the figures is on the left 1a-c shown dowels 10, on the right the dowels 10 shown in Figures 2a-c drawn.

Nach dem Verankern der Kunstfaserbündel 30 im Boden 34 mittels der Dübel 10 wird Naturrasen 36 zwischen die den Kunstrasen bildenden Kunstfaserbündel 30 gesät. Wurzeln 38 des Naturrasens 36 umschlingen die Kunstfaserbündel 30 im Boden 34, wodurch zum einen der Halt der Kunstfaserbündel 30 und zum anderen auch der Halt des Naturrasens 36 im Boden 34 vergrößert werden.After anchoring the synthetic fiber bundle 30 in the floor 34 by means of the dowel 10 Natural grass 36 sown between the synthetic fiber bundles 30 forming the artificial grass. root 38 of the natural grass 36 wrap around the synthetic fiber bundles 30 in the ground 34, whereby on the one hand the hold of the synthetic fiber bundle 30 and on the other hand also the hold of the natural grass 36 in the ground 34 can be enlarged.

Figur 4 zeigt eine Vorrichtung 40 zum Einbringen eines erfindungsgemäßen Dübels 10 in den Boden. Die Vorrichtung 40 weist einen Dorn 42 auf, dessen Durchmesser geringfügig kleiner als ein Durchmesser des Dübelkörpers 12 ist. Der Dorn 42 verjüngt sich an einer Ringstufe 44 zu einer stiftförmigen Aufnahme 46, auf die der Dübel 10 mit seinem Axialloch 24 aufgesteckt ist. Die Aufnahme 46 steht nach vorn über den Dübel 10 vor, sie endet mit einer Einsteckspitze 48. Ein mit dem Dübel 10 zu verankerndes Kunstfaserbündel wird durch Einfädeln in das Einfädelloch 22 bzw. in den Einfädelbügel 26 (Figuren 1a - c, 2a - c) am Dübel 10 angebracht, bevor dieser auf die Aufnahme 46 aufgesetzt wird. Beim Aufsetzen des Dübels 10 auf die Aufnahme 46 des Dorns 42 wird das Kunstfaserbündel und ggf. der Einfädelbügel 26 zur Seite gedrückt Der klaren Darstellung wegen ist in Figur 4 das Kunstfaserbündel nicht dargestellt.FIG. 4 shows a device 40 for inserting an anchor 10 according to the invention in the ground. The device 40 has a mandrel 42, the diameter of which is slight is smaller than a diameter of the dowel body 12. The mandrel 42 tapers a ring step 44 to a pin-shaped receptacle 46, on which the dowel 10 with its Axial hole 24 is plugged. The receptacle 46 projects forward over the dowel 10, it ends with an insertion tip 48. One to be anchored to the dowel 10 Synthetic fiber bundle is by threading into the threading hole 22 or into the threading bracket 26 (FIGS. 1a-c, 2a-c) are attached to the dowel 10 before the dowel 46 is put on. When the dowel 10 is placed on the receptacle 46 of the mandrel 42 the synthetic fiber bundle and, if applicable, the threading bracket 26 pushed to the side For illustration, the synthetic fiber bundle is not shown in FIG.

An einem hinteren Ende vergrößert sich der Dorn 42 mit einer Ringstufe 50, welche seine Einstecktiefe in den Boden begrenzt und dadurch eine Eindringtiefe des Dübels 10 festlegt. Der auf der Aufnahme 46 angebrachte Dübel 10 wird mit dem in ihn eingefädelten Kunstfaserbündel mittels der Vorrichtung 40 in den Boden eingesteckt. Anschließend wird die Vorrichtung 40 herausgezogen, wogegen der Dübel 10 mit dem Kunstfaserbündel 30 wie in Figur 3 dargestellt im Boden 34 verbleibt. Das Einstecken des Dübels 10 in den Boden mittels der Vorrichtung 40 kann manuell oder maschinell erfolgen.At a rear end, the mandrel 42 increases with an annular step 50, which limits its depth of insertion into the ground and thereby a depth of penetration of the dowel 10 specifies. The dowel 10 attached to the receptacle 46 is threaded into it Synthetic fiber bundle inserted into the ground by means of the device 40. Subsequently the device 40 is pulled out, whereas the dowel 10 with the synthetic fiber bundle 30 remains in the bottom 34 as shown in FIG. Inserting the dowel 10 in the ground by means of the device 40 can be done manually or mechanically.

Claims (7)

Dübel (10) zur Verankerung von Kunstfasern (28) eines Kunstrasens (32) im Boden (34), mit einem in den Boden (34) einbringbaren Dübelkörper (12), der eine Einrichtung (20, 22; 26) zum Anbringen der Kunstfasern (28) aufweist.Dowels (10) for anchoring synthetic fibers (28) of an artificial turf (32) in Floor (34), with a dowel body (12) that can be inserted into the floor (34) has a device (20, 22; 26) for attaching the synthetic fibers (28). Dübel nach Anspruch 1, dadurch gekennzeichnet, daß der Dübelkörper (12) einen Schlitz (20), ein Durchgangsloch (22), eine Öse (26), einen Haken oder dgl. als Einrichtung zum Anbringen der Kunstfasern (28) aufweist.Dowel according to claim 1, characterized in that the dowel body (12) has a slot (20), a through hole (22), an eyelet (26), a hook or the like as a device for attaching the synthetic fibers (28). Dübel nach Anspruch 1, dadurch gekennzeichnet, daß der Dübel (10) ein Ausziehsperrelement (18) aufweist, das ein Einbringen des Dübels (10) in den Boden (34) zuläßt und das den Dübel (10) gegen Ausziehen aus dem Boden (34) im Boden (34) verankert.Dowel according to claim 1, characterized in that the dowel (10) has a pull-out blocking element (18) which allows the dowel (10) to be inserted into the floor (34) and which prevents the dowel (10) from being pulled out of the floor (34 ) anchored in the floor (34). Dübel nach Anspruch 1, dadurch gekennzeichnet, daß der Dübel (10) eine Einrichtung (24) zum lösbaren Anbringen an einer Vorrichtung (40) zum Einbringen des Dübels (10) in den Boden (34) aufweist.Dowel according to claim 1, characterized in that the dowel (10) has a device (24) for detachable attachment to a device (40) for inserting the dowel (10) into the floor (34). Vorrichtung zum Einbringen des Dübels (10) nach Anspruch 4 in den Boden, dadurch gekennzeichnet, daß die Vorrichtung (40) einen Dorn (42) mit einer Aufnahme (46) zum lösbaren Anbringen des Dübels (10) an einem vorderen Ende des Dorns (42) aufweist. Device for inserting the dowel (10) according to claim 4 into the ground, characterized in that the device (40) comprises a mandrel (42) with a receptacle (46) for releasably attaching the dowel (10) to a front end of the mandrel ( 42). Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß der Dorn (42) über den an seiner Aufnahme (46) angebrachten Dübel (10) vorsteht.Device according to claim 5, characterized in that the mandrel (42) projects beyond the dowel (10) attached to its receptacle (46). Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Vorrichtung (40) eine Einrichtung (50) zur Angabe bzw. zur Begrenzung der Einbringtiefe des Dübels (10) in den Boden (34) aufweist.Device according to claim 5, characterized in that the device (40) has a device (50) for indicating or limiting the depth of insertion of the dowel (10) into the floor (34).
EP98112746A 1997-09-16 1998-07-09 Dowel for anchoring artificial grass tufts in the ground and device for inserting the dowel in the ground Withdrawn EP0906989A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29716703U 1997-09-16
DE29716703U DE29716703U1 (en) 1997-09-16 1997-09-16 Dowel for anchoring synthetic fibers of an artificial turf in the ground and device for inserting the dowel in the ground

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EP0906989A1 true EP0906989A1 (en) 1999-04-07

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EP98112746A Withdrawn EP0906989A1 (en) 1997-09-16 1998-07-09 Dowel for anchoring artificial grass tufts in the ground and device for inserting the dowel in the ground

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CZ (1) CZ9802953A3 (en)
DE (1) DE29716703U1 (en)
HU (1) HUP9801891A2 (en)
PL (1) PL328250A1 (en)

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AT371019B (en) * 1981-08-19 1983-05-25 Woelfl Ilse FIELD MARKING
DE8800186U1 (en) * 1988-01-11 1988-03-03 Kniesel, Ulrich, Bad Hall Floor marking element
US4957391A (en) * 1988-04-25 1990-09-18 Ulrich Kniesel Apparatus for setting marker plugs
WO1992007142A2 (en) * 1990-10-16 1992-04-30 Tapijtfabriek H. Desseaux N.V. A field containing artificial grass and a device for inserting artificial grass fibres
WO1993008332A1 (en) * 1991-10-14 1993-04-29 Tapijtfabriek H. Desseaux N.V. A device for inserting elongated artificial grass fibres into the ground
WO1995012441A1 (en) * 1993-11-02 1995-05-11 Philippe Morisse Synthetic grass implant for ground marking sodded surfaces

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WO2005003463A1 (en) * 2003-07-03 2005-01-13 Inventress B.V. Artificial grass system

Also Published As

Publication number Publication date
HUP9801891A2 (en) 1999-03-29
DE29716703U1 (en) 1999-01-21
CZ9802953A3 (en) 2002-10-16
PL328250A1 (en) 1999-03-29
HU9801891D0 (en) 1998-10-28

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