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EP0326797A1 - Device for protecting the central root section of a tree - Google Patents

Device for protecting the central root section of a tree Download PDF

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Publication number
EP0326797A1
EP0326797A1 EP19890100072 EP89100072A EP0326797A1 EP 0326797 A1 EP0326797 A1 EP 0326797A1 EP 19890100072 EP19890100072 EP 19890100072 EP 89100072 A EP89100072 A EP 89100072A EP 0326797 A1 EP0326797 A1 EP 0326797A1
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EP
European Patent Office
Prior art keywords
tree
opening
upper cover
shaped body
concrete
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.)
Granted
Application number
EP19890100072
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German (de)
French (fr)
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EP0326797B1 (en
Inventor
Klaus Dörle
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Kronimus AG
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Kronimus AG
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Publication of EP0326797A1 publication Critical patent/EP0326797A1/en
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C9/00Special pavings; Pavings for special parts of roads or airfields
    • E01C9/004Pavings specially adapted for allowing vegetation
    • E01C9/005Coverings around trees forming part of the road

Definitions

  • the invention relates to a device for protecting the central root area of trees, consisting of a molded body made of concrete surrounding the root area and provided with openings and having an upper cover with an opening for the passage of the tree trunk.
  • DE-OS 29 20 873 describes a device for the planting of trees and the like, particularly in traffic areas, which consists of a trough which can be lowered into the ground, on the edge of which a multi-part plate projecting above the trough with a recess for the Tree trunk is put on.
  • the known device has the disadvantage that the trough does not have an upper cover directly connected to it, but that the multi-part plate is retrofitted, i. H. after planting the tree on which the trough must be placed. Apart from the fact that there are always several parts to be kept in stock, the known device has disadvantages with regard to its static strength. In addition, it is not possible to adjust the diameter of the upper opening provided in the cover according to the wax state of the tree with simple means.
  • DE-GM 86 08 185 describes a precast concrete shaft for planting pits of trees, large shrubs and the like, which consists in the shaft being composed of vertical wall elements which have a horizontally angled pedestal at their lower edge. No integrated top cover is provided for this precast concrete shaft either.
  • the shaft itself also does not consist of one piece, so that disadvantages may also arise in the static case of the previously known shaft. Furthermore, it is impossible to carry out a subsequent transplanting of trees with this prefabricated shaft without the shaft being destroyed.
  • DE-GM 87 05 377 relates only to a support device for tree grate segments, which consists in that a Support ring extends approximately to the inner edge of the tree grate segments and that at least along the outer edge of the tree grate segments support beams are arranged on the support ring to support the tree grate segments. This is not a molded body with openings that surrounds the central root area of the tree.
  • the present invention has for its object to provide a device of the type mentioned that does not affect the living area of the tree even during and after the attachment of the square or road system and that remains as a unit in the root area and possibly together with the tree can be moved.
  • a device of the type mentioned which is characterized in that the shaped body has a trapezoidal longitudinal section with oblique side walls that form a larger opening at the bottom and is made in one casting including reinforcement and top cover, the Diameter of the opening in the top cover can be changed by a plurality of semicircular, interlocking disc rings.
  • the payloads and traffic loads are not discharged into the ground above, but through the walls of the molded body below the root system. Furthermore, the living area of the young tree in the humus bed and the subsequent wing substructure are clearly separated. It has an installation-related shaking and stabilizing the area around the tree has no influence on its growth area. Road construction and planting measures can thus be carried out at completely different times and completely undisturbed.
  • the young tree with its root ball can easily be planted through the existing, large installation opening at the top of the shaped body.
  • the space available is sufficient for a protected and protected root development during the first years.
  • the roots will gradually penetrate through the openings provided in the side walls, which can be circular, for example, and thus allow the tree to continue growing.
  • Another important advantage is that the loads are transmitted into the ground when the device is driven below the root system, with the trapezoidal longitudinal section of the concrete body, which is produced in one pour, achieving particularly good stability.
  • the rectangular or square, trapezoidal, hollow molded body on the lower edges of the sides have circular segment-shaped recesses.
  • the corners of the shaped body forming the lower edges can form supports for foundations, soil or underlying slabs, which likewise results in an improvement in stability with regard to the load transfer into the soil without impairing the root system.
  • the device for protecting the central root area of trees consists of a trapezoidal, hollow molded body made of concrete material which is open on the underside.
  • the molded body has four side walls 1 and an upper cover 2, in which there is a circular opening 3.
  • the diameter of the opening 3 can be enlarged or reduced by a plurality of disc rings 4 which fit into one another and which, for example, are semicircular and are provided with corresponding annular shoulders 5.
  • the side walls 1 of the rectangular or square, trapezoidal shaped body several circular openings 6 are provided for the passage of the developing roots of the tree.
  • circular cutouts 7 are provided at the lower edges of the side walls 1.
  • the corners 8 of the molded body forming the lower edges form supports for plates 9 inserted into the ground, each under the corners 8 in the ground are arranged.
  • the young tree initially designated 10, with the ball of earth 11 is introduced from above through the opening 3 into the shaped body and transplanted with it in the ground.
  • semicircular washers 4 each with a smaller diameter, are placed on the upper side to protect the trunk and the root ball located underneath.
  • the roots 12 pass through the openings 6 and anchor themselves in the ground.
  • the respective inner ring disks 4 are removed accordingly, so that an adaptation to the development of the tree trunk can be made.
  • the pressure loads emanating from the adjacent surface area are discharged into the ground on the outer walls of the sides 1 via upright corners, in-situ concrete foundations or the plates 9, so that the central root area is protected from such loads.
  • Fig. 3 shows a slightly different embodiment of the device according to the invention.
  • the concrete body is essentially rotated by 180 °, so that the large opening points upwards.
  • a tree disc made of reinforced concrete material as described in DBGM 84 20 431.1, can be placed.
  • the upper opening can be removed by Ent distant insert rings 14 are enlarged.
  • the opening on the underside must of course be so large that the roots can grow freely downwards.
  • a later relocation of the tree is easily possible.
  • This solution is also suitable for extremely poor or growth-hostile substrates.
  • FIG. 4 shows the possibility of stacking the device according to the invention in the form of a trapezoidal structure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Protection Of Plants (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Road Paving Structures (AREA)

Abstract

The device comprises a formed body made of concrete which surrounds the root section, is provided with perforations and has an upper cover with an opening for the passage of the tree trunk. The device is characterised in that the formed body has a trapezoidal longitudinal section having oblique side walls (1) which form a relatively large opening at the bottom and in that, including reinforcement and upper cover (2), is made in one casting, the diameter of the opening (3) in the upper cover (2) being changeable by means of a plurality of semicircular disc rings (4) which fit one inside the other. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Schutz des zentralen Wurzelbereiches von Bäumen, bestehend aus einem den Wurzelbereich umgebenden, mit Durchbrüchen versehe­nen Formkörper aus Beton mit einer oberen Abdeckung mit einer Öffnung für den Durchtritt des Baumstammes.The invention relates to a device for protecting the central root area of trees, consisting of a molded body made of concrete surrounding the root area and provided with openings and having an upper cover with an opening for the passage of the tree trunk.

Bei der Anlage von befestigten Straßen oder Plätzen, in deren Bereiche auch Bäume gepflanzt werden, werden die Nutz- und Verkehrslasten bei den herkömmlichen An­lagen bereits oberhalb des Wurzelwerkes in das Erdreich abgeleitet. Dadurch wird insbesondere der zentrale Wur­zelbereich der Bäume sehr stark beeinträchtigt, wobei einbaubedingtes Abrütteln und Stabilisieren der Umge­bung des Baumes häufig einen starken Einfluß auf den Wachstumsbereich des Baumes hat. Dies ergibt sich ins­besondere daraus, daß der Lebensbereich von frisch ein­gepflanzten Bäumen im Humusbett und anschließendem Tragflächenunterbau der Straßen oder Plätze nicht ein­deutig voneinander getrennt sind.In the construction of paved roads or squares, in whose areas trees are also planted, the payloads and traffic loads in conventional systems are already diverted into the ground above the root system. As a result, the central root area of the trees in particular is very badly affected, and installation-related shaking and stabilization of the area around the tree often have a strong influence on the growth area of the tree. This results in particular from the fact that the area of life of freshly planted trees in the humus bed and the subsequent wing base of the streets or squares are not clearly separated.

In der DE-OS 29 20 873 ist eine Vorrichtung für die An­pflanzung von Bäumen und dergleichen, insbesondere in Verkehrsbereichen, beschrieben, welche aus einem in den Boden versenkbaren Trog besteht, auf dessen Rand eine den Trog überragende, mehrteilige Platte mit einer Aus­sparung für den Baumstamm aufgesetzt ist.DE-OS 29 20 873 describes a device for the planting of trees and the like, particularly in traffic areas, which consists of a trough which can be lowered into the ground, on the edge of which a multi-part plate projecting above the trough with a recess for the Tree trunk is put on.

Die vorbekannte Vorrichtung weist jedoch den Nachteil auf, daß der Trog keine mit ihm unmittelbar verbunde­ne, obere Abdeckung aufweist, sondern daß die mehrtei­lige Platte nachträglich, d. h. nach dem Einpflanzen des Baumes, auf den Trog aufgelegt werden muß. Abgesehen davon, daß somit immer mehrere Teile auf Lager zu halten sind, weist die vorbekannte Vorrichtung hinsichtlich ihrer statischen Festigkeit Nachteile auf. Außerdem ist es nicht möglich, die obere, in der Abdeckung vorgesehene Öffnung entsprechend dem Wachszustand des Baumes in ihrem Durchmesser mit einfachen Mitteln anzupassen.However, the known device has the disadvantage that the trough does not have an upper cover directly connected to it, but that the multi-part plate is retrofitted, i. H. after planting the tree on which the trough must be placed. Apart from the fact that there are always several parts to be kept in stock, the known device has disadvantages with regard to its static strength. In addition, it is not possible to adjust the diameter of the upper opening provided in the cover according to the wax state of the tree with simple means.

Im DE-GM 86 08 185 ist ein Betonfertigteil-Schacht für Pflanzgruben von Bäumen, großen Sträuchern und derglei­chen beschrieben, welcher darin besteht, daß der Schacht aus vertikalen Wandelementen zusammengesetzt ist, die an ihrem unteren Rand einen horizontal abgewinkelten Stand­fuß aufweisen. Auch bei diesem Betonfertigteil-Schacht ist keine integrierte, obere Abdeckung vorgesehen. Außer­dem besteht der Schacht selbst ebenfalls nicht aus einem Stück, so daß auch bei dem vorbekannten Schacht in stati­scher Hinsicht Nachteile auftreten können. Ferner ist es unmöglich, mit diesem Fertigteil-Schacht eine nachträg­liche Verpflanzung von Bäumen vorzunehmen, ohne daß der Schacht zerstört wird.DE-GM 86 08 185 describes a precast concrete shaft for planting pits of trees, large shrubs and the like, which consists in the shaft being composed of vertical wall elements which have a horizontally angled pedestal at their lower edge. No integrated top cover is provided for this precast concrete shaft either. In addition, the shaft itself also does not consist of one piece, so that disadvantages may also arise in the static case of the previously known shaft. Furthermore, it is impossible to carry out a subsequent transplanting of trees with this prefabricated shaft without the shaft being destroyed.

Das DE-GM 87 05 377 betrifft lediglich eine Tragvorrich­tung für Baumrostsegmente, welche darin besteht, daß ein Tragring bis etwa zur Innenkante der Baumrostsegmente reicht und daß zumindest entlang der Außenkante der Baumrostsegmente Auflagebalken zur Unterstützung der Baumrostsegmente auf dem Tragring angeordnet sind. Hier­bei handelt es sich nicht um einen den zentralen Wurzel­bereich des Baumes umgebenden, mit Durchbrüchen versehe­nen Formkörper.DE-GM 87 05 377 relates only to a support device for tree grate segments, which consists in that a Support ring extends approximately to the inner edge of the tree grate segments and that at least along the outer edge of the tree grate segments support beams are arranged on the support ring to support the tree grate segments. This is not a molded body with openings that surrounds the central root area of the tree.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, die den Lebensbereich des Baumes auch während und nach erfolgter Befestigung der Platz- oder Straßenanlage nicht beeinträchtigt und die als Einheit im Wurzelbereich bleibt und ggf. zusammen mit dem Baum auch versetzt werden kann.The present invention has for its object to provide a device of the type mentioned that does not affect the living area of the tree even during and after the attachment of the square or road system and that remains as a unit in the root area and possibly together with the tree can be moved.

Zur Lösung der gestellten Aufgabe wird eine Vorrichtung der eingangs genannten Art vorgeschlagen, welche dadurch gekennzeichnet ist, daß der Formkörper einen trapezför­migen Längsschnitt mit schrägverlaufenden, nach unten eine größere Öffnung bildenden Seitenwänden aufweist und einschließlich Bewehrung und oberer Abdeckung in einem Guß hergestellt ist, wobei der Durchmesser der Öffnung in der oberen Abdeckung durch mehrere, halbkreisförmig ausgebildete, ineinanderpassende Scheibenringe ver­änderbar ist.To solve the problem, a device of the type mentioned is proposed, which is characterized in that the shaped body has a trapezoidal longitudinal section with oblique side walls that form a larger opening at the bottom and is made in one casting including reinforcement and top cover, the Diameter of the opening in the top cover can be changed by a plurality of semicircular, interlocking disc rings.

Mit der Vorrichtung gemäß der Erfindung werden mehrere Vorteile erreicht.Several advantages are achieved with the device according to the invention.

So werden die Nutz- und Verkehrslasten nicht oberhalb, sondern durch die Wände des Formkörpers unter dem Wur­zelwerk ins Erdreich abgeleitet. Ferner werden der Lebens­bereich des jungen Baumes im Humusbett und der sich an­schließende Tragflächenunterbau klar voneinander getrennt. Dabei hat ein einbaubedingtes Abrütteln und Stabilisieren der Umgebung des Baumes keinen Einfluß auf dessen Wachs­tumsbereich. Somit können Straßenbau- und Pflanzmaßnah­men zu völlig unterschiedlichen Zeitpunkten absolut von­einander getrennt und ungestört durchgeführt werden.In this way, the payloads and traffic loads are not discharged into the ground above, but through the walls of the molded body below the root system. Furthermore, the living area of the young tree in the humus bed and the subsequent wing substructure are clearly separated. It has an installation-related shaking and stabilizing the area around the tree has no influence on its growth area. Road construction and planting measures can thus be carried out at completely different times and completely undisturbed.

Ferner kann der junge Baum mit seinem Wurzelballen leicht durch die vorhandene, große Einbauöffnung an der Oberseite des Formkörpers gepflanzt werden. Der darin vorhandene Raum reicht aus für eine geschützte und be­hütete Wurzelentwicklung während der ersten Jahre. Da­nach werden die Wurzeln nach und nach durch die in den Seitenwänden vorgesehenen Durchbrüche, die beispiels­weise kreisrund sein können, nach außen dringen und da­mit das weitere Wachstum des Baumes ermöglichen.Furthermore, the young tree with its root ball can easily be planted through the existing, large installation opening at the top of the shaped body. The space available is sufficient for a protected and protected root development during the first years. Then the roots will gradually penetrate through the openings provided in the side walls, which can be circular, for example, and thus allow the tree to continue growing.

Ein weiterer wesentlicher Vorteil besteht darin, daß die Lasten beim Befahren der Vorrichtung unterhalb des Wur­zelwerkes in das Erdreich übertragen werden, wobei durch den trapezförmigen Längsschnitt des Betonkörpers, der in einem Guß hergestellt ist, eine besonders gute Stabilität erreicht wird.Another important advantage is that the loads are transmitted into the ground when the device is driven below the root system, with the trapezoidal longitudinal section of the concrete body, which is produced in one pour, achieving particularly good stability.

Gemäß Anspruch 2 kann der rechteckige oder quadratische, trapezförmige, hohle Formkörper an den unteren Kanten der Seiten kreisabschnittförmige Aussparungen aufweisen.According to claim 2, the rectangular or square, trapezoidal, hollow molded body on the lower edges of the sides have circular segment-shaped recesses.

Schließlich können die die Unterkanten bildenden Ecken des Formkörpers Auflagen für Fundamente, Erdreich oder untergelegte Platten bilden, wodurch sich ebenfalls eine Verbesserung der Stabilität im Hinblick auf die Last­übertragung ins Erdreich ohne Beeinträchtigung des Wur­zelwerkes ergibt.Finally, the corners of the shaped body forming the lower edges can form supports for foundations, soil or underlying slabs, which likewise results in an improvement in stability with regard to the load transfer into the soil without impairing the root system.

Anhand der Zeichnungen soll am Beispiel bevorzugter Aus­führungsformen die Vorrichtung gemäß der Erfindung näher erläutert werden.Using the drawings, the device according to the invention is to be used in more detail using the example of preferred embodiments are explained.

In den Zeichnungen zeigt

  • Fig. 1 eine perspektivische Ansicht einer Ausführungs­möglichkeit der Vorrichtung gemäß der Erfindung.
  • Fig. 2 zeigt einen Schnitt durch eine mit einem Baum in das Erdreich eingesetzte Vorrichtung gemäß der Erfindung.
  • Fig. 3 zeigt eine ähnliche Ansicht wie Fig. 2 bei einer abgewandelten Ausführungsform der Vor­richtung gemäß der Erfindung.
In the drawings shows
  • Fig. 1 is a perspective view of an embodiment of the device according to the invention.
  • Fig. 2 shows a section through a device inserted into the ground with a tree according to the invention.
  • Fig. 3 shows a view similar to Fig. 2 in a modified embodiment of the device according to the invention.

Wie sich aus den Figuren der Zeichnungen ergibt, be­steht die Vorrichtung zum Schutz des zentralen Wurzel­bereiches von Bäumen aus einem trapezförmigen, hohlen, an der Unterseite offenen Formkörper aus Betonwerk­stoff. Der Formkörper weist vier Seitenwände 1 und eine obere Abdeckung 2 auf, in der sich eine kreisför­mige Öffnung 3 befindet. Die Öffnung 3 kann durch meh­rere ineinanderpassende Scheibenringe 4, die beispiels­weise halbkreisförmig ausgebildet und mit entsprechen­den, ringförmigen Absätzen 5 versehen sind, in ihrem Durchmesser vergrößert oder verkleinert werden. In den Seitenwänden 1 des rechteckigen oder quadratischen, trapezförmigen Formkörpers sind mehrere kreisrunde Öff­nungen 6 zum Druchtritt der sich entwickelnden Wurzeln des Baumes vorgesehen. An den unteren Kanten der Seiten­wände 1 sind kreisabschnittförmige Aussparungen 7 vor­gesehen. Die die Unterkanten bildenden Ecken 8 des Form­körpers bilden Auflagen für in das Erdreich eingesetzte Platten 9, die jeweils unter den Ecken 8 im Erdreich angeordnet sind.As can be seen from the figures of the drawings, the device for protecting the central root area of trees consists of a trapezoidal, hollow molded body made of concrete material which is open on the underside. The molded body has four side walls 1 and an upper cover 2, in which there is a circular opening 3. The diameter of the opening 3 can be enlarged or reduced by a plurality of disc rings 4 which fit into one another and which, for example, are semicircular and are provided with corresponding annular shoulders 5. In the side walls 1 of the rectangular or square, trapezoidal shaped body, several circular openings 6 are provided for the passage of the developing roots of the tree. At the lower edges of the side walls 1, circular cutouts 7 are provided. The corners 8 of the molded body forming the lower edges form supports for plates 9 inserted into the ground, each under the corners 8 in the ground are arranged.

Wie sich aus Fig. 2 ergibt, wird der zunächst mit 10 bezeichnete junge Baum mit dem Erdballen 11 von oben durch die Öffnung 3 in den Formkörper eingeführt und mit diesem im Erdreich verpflanzt. Danach werden so viele halbkreisförmige Ringscheiben 4 mit jeweils ge­ringerem Durchmesser an der Oberseite aufgelegt, daß ein Schutz des Stammes und des sich darunter befind­lichen Wurzelballens gewährleistet ist. Im Verlaufe der Entwicklung des Baumes treten die Wurzeln 12 durch die öffnungen 6 hindurch und verankern sich im Erdreich. Mit dem Verdicken des Stammes 13 werden entsprechend die je­weils inneren Ringscheiben 4 entfernt, so daß eine Anpas­sung an die Entwicklung des Baumstammes vorgenommen wer­den kann.As can be seen from FIG. 2, the young tree, initially designated 10, with the ball of earth 11 is introduced from above through the opening 3 into the shaped body and transplanted with it in the ground. Then so many semicircular washers 4, each with a smaller diameter, are placed on the upper side to protect the trunk and the root ball located underneath. In the course of the development of the tree, the roots 12 pass through the openings 6 and anchor themselves in the ground. With the thickening of the trunk 13, the respective inner ring disks 4 are removed accordingly, so that an adaptation to the development of the tree trunk can be made.

Die vom benachbarten Oberflächenbereich ausgehenden Druck­belastungen werden an den Außenwänden der Seiten 1 über aufstehende Ecken, Ortbetonfundamente oder die Platten 9 in das Erdreich abgeleitet, so daß der zentrale Wurzel­bereich von derartigen Belastungen geschützt ist.The pressure loads emanating from the adjacent surface area are discharged into the ground on the outer walls of the sides 1 via upright corners, in-situ concrete foundations or the plates 9, so that the central root area is protected from such loads.

Mit der Vorrichtung gemäß der Erfindung ist somit ein Anschluß an Verkehrsflächen vor der Bepflanzung möglich, wobei Eigengewicht und Nutzlast unterhalb der Wurzeln in den Boden eingeleitet werden.With the device according to the invention, a connection to traffic areas before planting is thus possible, with dead weight and payload being introduced into the ground below the roots.

Fig. 3 zeigt eine etwas andere Ausführungsform der Vor­richtung gemäß der Erfindung. Hierbei ist im wesentli­chen der Formkörper aus Beton um 180° gedreht, so daß die große Öffnung nach oben weist. Zur Abdeckung kann hierbei eine Baumscheibe aus armiertem Betonwerkstoff, wie sie im DBGM 84 20 431.1 beschrieben ist, aufgelegt werden. Auch hierbei kann die obere Öffnung durch Ent­ fernen der Einsatzringe 14 vergrößert werden. An der Un­terseite muß die Öffnung selbstverständlich so groß sein, daß die Wurzeln nach unten frei durchwachsen können. Mit der in Fig. 3 gezeigten Vorrichtung ist auch ein späteres Umsetzen des Baumes leicht möglich. Diese Lösung bietet sich außerdem bei extrem schlechtem oder wachstumsfeindlichem Untergrund an.Fig. 3 shows a slightly different embodiment of the device according to the invention. In this case, the concrete body is essentially rotated by 180 °, so that the large opening points upwards. To cover this, a tree disc made of reinforced concrete material, as described in DBGM 84 20 431.1, can be placed. Here, too, the upper opening can be removed by Ent distant insert rings 14 are enlarged. The opening on the underside must of course be so large that the roots can grow freely downwards. With the device shown in Fig. 3, a later relocation of the tree is easily possible. This solution is also suitable for extremely poor or growth-hostile substrates.

In Fig. 4 ist die Möglichkeit einer Aufeinanderstapelung der Vorrichtung gemäß der Erfindung in Form eines tra­pezförmigen Aufbaues dargestellt.4 shows the possibility of stacking the device according to the invention in the form of a trapezoidal structure.

Claims (3)

1. Vorrichtung zum Schutz des zentralen Wurzelbereiches von Bäumen, bestehend aus einem den Wurzelbereich umgebenden, mit Durchbrüchen versehenen Formkörper aus Beton mit einer oberen Abdeckung mit einer Öff­nung für den Durchtritt des Baumstammes, da­durch gekennzeichnet, daß der Formkörper einen trapezförmigen Längsschnitt mit schrägverlaufenden, nach unten eine größere Öffnung bildenden Seitenwänden (1) aufweist und einschließ­lich Bewehrung und oberer Abdeckung (2) in einem Guß hergestellt ist, wobei der Durchmesser der Öffnung (3) in der oberen Abdeckung (2) durch mehrere, halb­kreisförmig ausgebildete, ineinanderpassende Schei­benringe (4) veränderbar ist.1. A device for protecting the central root area of trees, consisting of a concrete surrounding the root area, provided with openings, made of concrete with an upper cover with an opening for the passage of the tree trunk, characterized in that the shaped body has a trapezoidal longitudinal section with oblique, after having a larger opening at the bottom side walls (1) and including reinforcement and upper cover (2) is made in one casting, the diameter of the opening (3) in the upper cover (2) by a plurality of semicircular, matching disc rings (4 ) is changeable. 2. Vorrichtung nach Anspruch 1, dadurch ge­kennzeichnet, daß der rechteckige oder quadratische, trapezförmige, hohle Formkörper an den unteren Kanten der Seiten kreisabschnittförmige Aus­sparungen (7) aufweist.2. Device according to claim 1, characterized in that the rectangular or square, trapezoidal, hollow shaped body on the lower edges of the sides has circular segment-shaped recesses (7). 3. Vorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die die Unter­kanten bildenden Ecken (8) des Formkörpers Auflagen für Fundamente, Erdreich oder untergelegte Platten (9) bilden.3. Apparatus according to claim 1 and 2, characterized in that the lower edges forming corners (8) of the shaped body form supports for foundations, soil or underlying slabs (9).
EP89100072A 1988-02-04 1989-01-04 Device for protecting the central root section of a tree Expired - Lifetime EP0326797B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8801344U DE8801344U1 (en) 1988-02-04 1988-02-04 Device for protecting the central root area of trees
DE8801344U 1988-02-04

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EP0326797A1 true EP0326797A1 (en) 1989-08-09
EP0326797B1 EP0326797B1 (en) 1992-03-25

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997044996A1 (en) * 1996-05-29 1997-12-04 Toimi Immonen Cover
DE19707355C2 (en) * 1996-03-14 2002-05-29 Schwenk Betontech Gmbh & Co Precast set for creating foundations for tree grates
KR100968945B1 (en) * 2010-01-25 2010-07-14 박성만 Protecting device of shade tree by the road side
CN110214754A (en) * 2019-07-12 2019-09-10 王德发 A kind of production method for the vermiculture brick that can plant plant
CN111587067A (en) * 2017-09-04 2020-08-25 树管公司 System and method for tree growth management

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DE4009613C2 (en) * 1989-04-27 1999-11-11 Hermann A Dreyer Tree wreath
FR2676613A1 (en) * 1991-05-22 1992-11-27 Colin Jean Pierre CROP GROUND COVER.
US5383302A (en) * 1992-10-08 1995-01-24 Hill; Ronald F. Apparatus and method for growing strongly-rooted trees, and preventing root damage to hardscapes
US5371967A (en) * 1993-09-09 1994-12-13 Deep Root Partners, L.P. Root-control planter that is integral, lightweight, thin-walled, and compactly stackable, and that has ground locks
US5584602A (en) * 1993-10-15 1996-12-17 Bevil; John A. Method for landscape and hardscape edging
DE19615769C1 (en) * 1996-04-20 1997-08-21 Lkh Kunststoffwerk Gmbh & Co Frame edging for cooking area, e.g. for separating ceramic hob from neighbouring work surfaces
NL1022686C2 (en) * 2003-02-14 2004-09-22 Carolus Hermanus Van Raam Concrete module for creating underground space beneath grass field, comprises prefabricated perforated cover, skeletal frame and base

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DE8420431U1 (en) * 1984-09-27 Kronimus & Sohn Betonsteinwerk und Baugeschäft GmbH & Co KG, 7551 Iffezheim Tree grate made of reinforced concrete material
DE8608185U1 (en) * 1986-03-25 1986-05-28 Mall Beton GmbH, 7710 Donaueschingen Precast concrete shaft for plant pits
DE8705377U1 (en) * 1987-04-10 1987-06-25 August Walter GmbH & Co KG, 6700 Ludwigshafen Support device for tree grate segments

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DE8420431U1 (en) * 1984-09-27 Kronimus & Sohn Betonsteinwerk und Baugeschäft GmbH & Co KG, 7551 Iffezheim Tree grate made of reinforced concrete material
US4019279A (en) * 1975-06-09 1977-04-26 Moorman Maurice D Root control planter
US4019279B1 (en) * 1975-06-09 1990-06-12 Deep Root Corp
DE2920873A1 (en) * 1979-05-23 1980-11-27 Eberhard Dipl Ing Kuen DEVICE FOR PLANTING TREES AND THE LIKE, IN PARTICULAR IN TRAFFIC AREAS
DE8608185U1 (en) * 1986-03-25 1986-05-28 Mall Beton GmbH, 7710 Donaueschingen Precast concrete shaft for plant pits
DE8705377U1 (en) * 1987-04-10 1987-06-25 August Walter GmbH & Co KG, 6700 Ludwigshafen Support device for tree grate segments

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19707355C2 (en) * 1996-03-14 2002-05-29 Schwenk Betontech Gmbh & Co Precast set for creating foundations for tree grates
WO1997044996A1 (en) * 1996-05-29 1997-12-04 Toimi Immonen Cover
KR100968945B1 (en) * 2010-01-25 2010-07-14 박성만 Protecting device of shade tree by the road side
CN111587067A (en) * 2017-09-04 2020-08-25 树管公司 System and method for tree growth management
CN111587067B (en) * 2017-09-04 2023-10-27 树管公司 System and method for tree growth management
CN110214754A (en) * 2019-07-12 2019-09-10 王德发 A kind of production method for the vermiculture brick that can plant plant

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DE58900999D1 (en) 1992-04-30
EP0326797B1 (en) 1992-03-25
DE8801344U1 (en) 1988-03-17

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