WO1996025602A1 - Device for creating a composite anchor - Google Patents

Device for creating a composite anchor Download PDF

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Publication number
WO1996025602A1
WO1996025602A1 PCT/DE1996/000245 DE9600245W WO9625602A1 WO 1996025602 A1 WO1996025602 A1 WO 1996025602A1 DE 9600245 W DE9600245 W DE 9600245W WO 9625602 A1 WO9625602 A1 WO 9625602A1
Authority
WO
WIPO (PCT)
Prior art keywords
anchor bolt
cartridge
borehole
hardener
bore hole
Prior art date
Application number
PCT/DE1996/000245
Other languages
German (de)
French (fr)
Inventor
Hans-Werner Korte-Jungermann
Original Assignee
Korte Jungermann Hans Werner
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Korte Jungermann Hans Werner filed Critical Korte Jungermann Hans Werner
Priority to EP96902238A priority Critical patent/EP0809759A1/en
Publication of WO1996025602A1 publication Critical patent/WO1996025602A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
    • F16B13/141—Fixing plugs in holes by the use of settable material
    • F16B13/143—Fixing plugs in holes by the use of settable material using frangible cartridges or capsules containing the setting components
    • F16B13/145—Fixing plugs in holes by the use of settable material using frangible cartridges or capsules containing the setting components characterised by the composition of the setting agents contained in the frangible cartridges or capsules
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
    • F16B13/141—Fixing plugs in holes by the use of settable material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
    • F16B13/141—Fixing plugs in holes by the use of settable material
    • F16B13/143—Fixing plugs in holes by the use of settable material using frangible cartridges or capsules containing the setting components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
    • F16B13/141—Fixing plugs in holes by the use of settable material
    • F16B13/143—Fixing plugs in holes by the use of settable material using frangible cartridges or capsules containing the setting components
    • F16B13/144—Fixing plugs in holes by the use of settable material using frangible cartridges or capsules containing the setting components characterised by the shape or configuration or material of the frangible cartridges or capsules
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/08—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation
    • F16B13/0858—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation with an expansible sleeve or dowel body driven against a tapered or spherical expander plug

Definitions

  • the invention relates to a device for producing a composite anchor with a cartridge which has been introduced into a borehole or the like while mechanically destroying a cartridge which has been introduced into the borehole beforehand and has an inactivated adhesive in the form of individual components (including a hardener component) via a cartridge Part of its length insertable anchor bolt, the part of which is held in place by the adhesive activated as a result of the destruction of the cartridge after it has hardened in the borehole.
  • the cartridge is a welded glass tube which has different components in a resin liquid.
  • the glass tube is first inserted into the borehole and then the anchor bolt is driven into the borehole by means of an impact drill in such a way that the glass tube is destroyed and the two hardener components mix due to the mechanical action.
  • the activated mortar thus formed then fills the ring gap between the inner surface of the borehole and the outside of the anchor bolt in the area inserted into the borehole and hardens.
  • the anchor bolt has a mark up to which it is driven into the borehole. The part of the anchor bolt protruding beyond the borehole then forms, after hardening, the desired composite anchor or an anchoring point for fastening objects.
  • the known device requires an impact drill for assembly and, accordingly, the presence of electrical energy to operate this impact drill.
  • the hardener components in the known, welded glass tube settle downward before assembly, so that the components in the resin liquid are not uniformly distributed. In many cases, this leads to an uneven distribution of the components in the mortar composition and thus also to an uneven adhesive effect.
  • the hardener component is distributed in the cartridge in the form of hardener capsules, and that the portion of the anchor bolt provided for insertion into the borehole has a granular, sharp-edged surface structure which causes the hardener capsules to open during the insertion process.
  • the hardener capsules are embedded in a further reactive, liquid and / or pasty component (resin) and can initiate the hardening process after they have been opened by the released hardener.
  • the anchor bolt can be inserted into the borehole by a striking movement, i.e. , It is not absolutely necessary to use an impact drill. After the cartridge has been destroyed, the hardener capsules are pressed upward in the annular gap between the inside of the drill hole and the outside of the driven-in anchor bolt. Due to the effect of the granular, sharp-edged surface structure, the hardener capsules are opened and thereby activated.
  • the hardener capsules can be designed in the form of spheres, in particular as spherical microcapsules.
  • the capsule content is preferably an organic peroxide.
  • the cartridge has a paste-like mass which prevents separation of a predetermined distribution of the individual components. This leads to the formation of a mortar compound with a homogeneous adhesive effect over the entire gap area.
  • the sharp-edged surface structure of the anchor bolt can be formed by quartz grains partially embedded in a resin coating applied to the surface of the anchor bolt.
  • the surface of the anchor bolt which has the quartz grains embedded in the resin coating, can be smooth or else profiled.
  • the anchor bolt has a slotted bore in its end facing the bottom of the borehole with a partially inserted cone which, when the anchor bolt is inserted as a result of contact of the cone causes the slotted end region to widen with the bottom of the borehole.
  • a so-called "undercut” is achieved, the undercut effect being generated by the impact process of the anchor bolt.
  • the force required for pulling out the anchor bolt with hardened mortar mass should be so great that the hardened mortar mass does not withstand the shear forces applied to the mortar mass by the expanded areas at the bottom of the borehole. This force is very high. In other words, this means that the secure fastening of the composite anchor is even greater in the embodiment with an "undercut”.
  • 1 shows an embodiment of an anchor bolt according to the invention
  • 2 shows a further embodiment of an anchor bolt according to the invention
  • Fig. 3 is a schematic representation of a cartridge according to the invention.
  • FIG. 4 shows the anchor bolt according to FIG. 1 introduced into a borehole
  • FIG. 5 shows a representation of the anchor bolt introduced into a borehole according to FIG. 2.
  • An anchor bolt 1 has a section provided with an external thread 2 and a further partial area 3 which has a granular, sharp-edged surface structure on its surface.
  • the surface structure 3 is formed by applying a resin coating to this section of the anchor bolt and then embedding quartz grains in this resin coating, the quartz grains being only partially embedded and partially protruding with sharp-edged areas, so that an emery-like surface is formed.
  • the anchor bolt 1 is provided for insertion and fastening in a borehole 4 of a component.
  • the inside diameter of the borehole 4 is somewhat larger than the outside diameter of the region 3 of the anchor bolt which has the granular, sharp-edged surface structure.
  • the interspace is filled with an initially paste-like and then hardening hardener or adhesive 5.
  • This adhesive is in the inactivated state in the cartridge shown in FIG. 3 and labeled 6 overall, which is preferably designed as a glass cartridge.
  • a large number of hardener capsules 7 are contained in the cartridge 6, evenly distributed in a pasty mass 8, which prevents segregation of the uniform distribution and thus prevents the hardener capsules from accumulating in an area of the cartridge 6.
  • the glass cartridge has a bottom at the upper end the 9 and is open at its lower front. Since the mass 8 has a pasty consistency, it does not emerge.
  • the desired composite anchor is created in that the operator first inserts the cartridge 6 into the borehole 4 (either with the open or the closed front end as desired) and then subsequently the anchor bolt 1 with the granular, sharp-edged surface structure Insert the end into the borehole 4 and execute a striking movement in the direction of arrow A by means of a suitable device.
  • the cartridge 6 is destroyed by this impact movement, and the paste-like mass with the hardener capsules evenly embedded therein can now escape.
  • the hardener capsules are guided past the granular, sharp-edged surface structure 3 and opened in the process, whereby the hardener is released and the activation of the mortar composition is initiated.
  • the dimensions and the amount of adhesive or mortar are coordinated so that after the anchor bolt 1 has been driven into the borehole 4, the gap is filled with activated adhesive up to the area where the external thread 2 begins. After the adhesive has hardened, the desired composite anchor is created, and a desired object can be attached to the external thread 2 of the anchor bolt.
  • the further exemplary embodiment of an anchor bolt shown in FIG. 2 differs from the anchor bolt according to FIG. 1 in that the anchor bolt, denoted here by 1 ', has a slotted front end region at its lower end.
  • the front end 10 has an inner bore 11 which extends in the axial direction and which is provided with slots 12 on opposite sides. hen is.
  • a cone 13 is inserted into the slotted bore in such a way that part of the cone projects beyond the end 10.
  • the anchor bolt 1 ' also has a granular, sharp-edged surface structure 3' in its area to be inserted into the borehole, which causes the hardener capsules 7 to open during the insertion process.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

A device for creating a composite anchor (1) has a tie bolt with a partial length (3) that may be introduced into a bore hole (4) or the like of a building element, mechanically destroying a cartridge (6) previously introduced into said bore hole and containing an inactivated adhesive mass in the form of individual components. The partial length (3) of the tie bolt introduced into the bore hole (4) is retained in the bore hole (4) by the adhesive mass (5) that is activated and hardened when the cartridge (6) is destroyed. The hardener component is present in the cartridge (6) as hardener capsules (7). The partial length (3) of the tie bolt (1) that is introduced into the bore hole (4) has a granular, sharp-edged surface structure. The cartridge (6) contains a pasty mass (8) that prevents individual components distributed in a predetermined manner from dissociating. The cartridge (6) may be introduced into the bore hole with any face first.

Description

Vorrichtung zur Erstellung eines VerbundankersDevice for creating a composite anchor
Die Erfindung betrifft eine Vorrichtung zur Erstellung eines Verbundankerε mit einem in ein Bohrloch od. dgl. eines Bau¬ elementes unter mechanischer Zerstörung einer vorher in das Bohrloch eingebrachten, eine unaktivierte Klebemasse in Form von Einzelkomponenten (u.a. eine Härterkomponente) aufwei¬ senden Patrone über einen Teilbereich seiner Länge einbring¬ baren Ankerbolzen, dessen eingebrachter Teilbereich von der infolge der Zerstörung der Patrone aktivierten Klebemasse nach deren Aushärtung in dem Bohrloch festgehalten ist.The invention relates to a device for producing a composite anchor with a cartridge which has been introduced into a borehole or the like while mechanically destroying a cartridge which has been introduced into the borehole beforehand and has an inactivated adhesive in the form of individual components (including a hardener component) via a cartridge Part of its length insertable anchor bolt, the part of which is held in place by the adhesive activated as a result of the destruction of the cartridge after it has hardened in the borehole.
Es ist bekannt, die Patrone als verschweißtes Glasröhrchen auszubilden, welches unterschiedliche Komponenten in einer Harzflüssigkeit aufweist. Bei der Montage wird zunächst das Glasröhrchen in das Bohrloch eingesteckt und dann der Anker¬ bolzen mittels einer Schlagbohrmaschine derart in das Bohr¬ loch eingetrieben, daß das Glasröhrchen zerstört wird und sich die beiden Härterkomponenten infolge der mechanischen Wirkung vermischen. Der so gebildete aktivierte Mörtel füllt dann den Ringspalt zwischen der Innenoberfläche des Bohrlo¬ ches und der Außenseite des Ankerbolzens in dem in das Bohr¬ loch eingeführten Bereich aus und erhärtet. Der Ankerbolzen hat eine Markierung, bis zu der er in das Bohrloch eingetrie¬ ben wird. Der über das Bohrloch vorstehende Teil des Anker¬ bolzens bildet nach der Aushärtung dann den gewünschten Ver¬ bundanker bzw. einen Verankerungspunkt zur Befestigung von Gegenständen.It is known to design the cartridge as a welded glass tube which has different components in a resin liquid. During assembly, the glass tube is first inserted into the borehole and then the anchor bolt is driven into the borehole by means of an impact drill in such a way that the glass tube is destroyed and the two hardener components mix due to the mechanical action. The activated mortar thus formed then fills the ring gap between the inner surface of the borehole and the outside of the anchor bolt in the area inserted into the borehole and hardens. The anchor bolt has a mark up to which it is driven into the borehole. The part of the anchor bolt protruding beyond the borehole then forms, after hardening, the desired composite anchor or an anchoring point for fastening objects.
Die bekannte Vorrichtung erfordert für die Montage eine Schlagbohrmaschine und dementsprechend das Vorhandensein von elektrischer Energie zum Betrieb dieser Schlagbohrmaschine. Die Härterkomponenten in dem bekannten, verschweißten Glas¬ röhrchen setzen sich je nach Lage des Glasröhrchen vor der Montage nach unten ab, so daß die Komponenten in der Harz¬ flüssigkeit nicht gleichmäßig verteilt sind. Dies führt in vielen Fällen zu einer ungleichmäßigen Verteilung der Kompo¬ nenten in der Mörtelmasse und damit auch zu ungleichmäßiger Klebewirkung.The known device requires an impact drill for assembly and, accordingly, the presence of electrical energy to operate this impact drill. Depending on the position of the glass tube, the hardener components in the known, welded glass tube settle downward before assembly, so that the components in the resin liquid are not uniformly distributed. In many cases, this leads to an uneven distribution of the components in the mortar composition and thus also to an uneven adhesive effect.
Demgegenüber ist erfindungsgemäß vorgesehen, daß die Härter¬ komponente in der Patrone verteilt in Form von Härterkapseln ausgebildet ist, und daß der zum Einbringen in das Bohrloch vorgesehene Teilbereich des Ankerbolzenε eine körnige, bei dem Einbringvorgang eine Öffnung der Härterkapseln bewirkende scharfkantige Oberflächenstruktur aufweist.In contrast, it is provided according to the invention that the hardener component is distributed in the cartridge in the form of hardener capsules, and that the portion of the anchor bolt provided for insertion into the borehole has a granular, sharp-edged surface structure which causes the hardener capsules to open during the insertion process.
Die Härterkapseln sind in einer weiteren reaktiven, flüssigen und/oder pastösen Komponente (Harz) eingebettet und können nach ihrer Öffnung durch den freigesetzten Härter den Här¬ tungsvorgang initiieren. Der Ankerbolzen kann durch eine Schlagbewegung in das Bohrloch eingebracht werden, d.h. , es ist nicht zwingend der Einsatz einer Schlagbohrmaschine er¬ forderlich. Nach der Zerstörung der Patrone werden die Här¬ terkapseln in dem Ringspalt zwischen der Innenseite des Bohr¬ loches und der Außenseite des eingetriebenen Ankerbolzens nach oben gedrückt. Durch die Wirkung der körnigen, scharf¬ kantigen Oberflächenstruktur werden die Härterkapseln geöff¬ net und dadurch aktiviert.The hardener capsules are embedded in a further reactive, liquid and / or pasty component (resin) and can initiate the hardening process after they have been opened by the released hardener. The anchor bolt can be inserted into the borehole by a striking movement, i.e. , It is not absolutely necessary to use an impact drill. After the cartridge has been destroyed, the hardener capsules are pressed upward in the annular gap between the inside of the drill hole and the outside of the driven-in anchor bolt. Due to the effect of the granular, sharp-edged surface structure, the hardener capsules are opened and thereby activated.
Die Härterkapseln können in zweckmäßiger Ausgestaltung der Erfindung in Form von Kugeln, insbesondere als kugelförmige Mikrokapseln, ausgebildet sein. Der Kapselinhalt ist vorzugs¬ weise ein organisches Peroxid.In an expedient embodiment of the invention, the hardener capsules can be designed in the form of spheres, in particular as spherical microcapsules. The capsule content is preferably an organic peroxide.
In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß die Patrone eine pastöse, eine Entmischung einer vorgegebenen Verteilung der Einzelkomponenten verhindernde Masse aufweist. Dies führt zur Bildung einer Mörtelmasse mit homogener Klebe¬ wirkung über den gesamten Spaltbereich.In a further embodiment of the invention it is provided that the cartridge has a paste-like mass which prevents separation of a predetermined distribution of the individual components. This leads to the formation of a mortar compound with a homogeneous adhesive effect over the entire gap area.
Die scharfkantige Oberflächenstruktur des Ankerbolzens kann in weiterer Ausgestaltung der Erfindung durch teilweise in eine auf die Oberfläche des Ankerbolzens aufgebrachte Harzbe- schichtung eingebettete Quarzkörner gebildet sein.In a further embodiment of the invention, the sharp-edged surface structure of the anchor bolt can be formed by quartz grains partially embedded in a resin coating applied to the surface of the anchor bolt.
Die Oberfläche des Ankerbolzens, welche die in die Harzbe- schichtung eingebetteten Quarzkörner aufweist, kann glatt oder aber auch profiliert ausgebildet sein. In weiterer Aus¬ gestaltung der Erfindung kann vorgesehen sein, daß der Anker¬ bolzen in seinem dem Boden des Bohrlochs zuzuwendenden Stirn¬ ende eine geschlitzte Bohrung mit einem teilweise darin ein¬ gesteckten Konus aufweist, welcher bei einem Einbringen des Ankerbolzens infolge eines Kontaktes des Konus mit dem Boden des Bohrlochs ein Aufweiten des geschlitzten Stirnendberei¬ ches bewirkt. Durch das Aufweiten des geschlitzten Stirnend¬ bereiches erreicht man einen sog. "Hinterschnitt", wobei die Hinterschnittwirkung durch den Einschlagvorgang des Ankerbol¬ zens erzeugt wird. Die für ein Herausziehen des Ankerbolzens bei gehärteter Mörtelmasse erforderliche Kraft müßte so groß sein, daß die erhärtete Mörtelmasse der durch die aufgeweite¬ ten Bereiche am Boden des Bohrloches auf die Mörtelmasse auf¬ gebrachten Scherkräfte nicht standhält. Diese Kraft ist sehr hoch. Mit anderen Worten bedeutet dies, daß die sichere Befe¬ stigung des Verbundankers bei der Ausführung mit "Hinter¬ schnitt" noch größer ist.The surface of the anchor bolt, which has the quartz grains embedded in the resin coating, can be smooth or else profiled. In a further embodiment of the invention, it can be provided that the anchor bolt has a slotted bore in its end facing the bottom of the borehole with a partially inserted cone which, when the anchor bolt is inserted as a result of contact of the cone causes the slotted end region to widen with the bottom of the borehole. By widening the slotted front end area, a so-called "undercut" is achieved, the undercut effect being generated by the impact process of the anchor bolt. The force required for pulling out the anchor bolt with hardened mortar mass should be so great that the hardened mortar mass does not withstand the shear forces applied to the mortar mass by the expanded areas at the bottom of the borehole. This force is very high. In other words, this means that the secure fastening of the composite anchor is even greater in the embodiment with an "undercut".
Die Erfindung wird nachfolgend anhand der in der Zeichnung schematisch dargestellten Ausführungsbeispiele näher erläu¬ tert. Es zeigen:The invention is explained in more detail below with reference to the exemplary embodiments shown schematically in the drawing. Show it:
Fig. 1 eine Ausführungεform eines Ankerbolzens gemäß der Er¬ findung; Fig. 2 eine weitere Ausführungsform eines Ankerbolzens gemäß der Erfindung;1 shows an embodiment of an anchor bolt according to the invention; 2 shows a further embodiment of an anchor bolt according to the invention;
Fig. 3 eine schematische Darstellung einer Patrone gemäß der Erfindung;Fig. 3 is a schematic representation of a cartridge according to the invention;
Fig. 4 eine Darstellung des in ein Bohrloch eingebrachten Ankerbolzens gemäß Fig. 1;FIG. 4 shows the anchor bolt according to FIG. 1 introduced into a borehole; FIG.
Fig. 5 eine Darstellung des in ein Bohrloch eingebrachten Ankerbolzens gemäß Fig. 2.5 shows a representation of the anchor bolt introduced into a borehole according to FIG. 2.
Ein Ankerbolzen 1 weist einen mit einem Außengewinde 2 verse¬ henen Abschnitt und einen weiteren Teilbereich 3 auf, der an seiner Oberfläche eine körnige, scharfkantige Oberflächen¬ struktur aufweist. Die Oberflächenstruktur 3 ist durch Auf¬ bringen einer Harzbeschichtung auf diesen Abschnitt des An- kerbolzens und anschließendes Einbetten von Quarzkörnern in diese Harzbeschichtung gebildet, wobei die Quarzkörner nur teilweise eingebettet sind und zum Teil mit scharfkantigen Bereichen vorstehen, so daß eine schmirgelartige Oberfläche gebildet ist. Der Ankerbolzen 1 ist zum Einbringen und Befe¬ stigen in einem Bohrloch 4 eines Bauelementes vorgesehen. Der Innendurchmesser des Bohrloches 4 ist etwas größer als der Außendurchmesser des die körnige, scharfkantige Oberflächen¬ struktur aufweisenden Bereiches 3 des Ankerbolzens. Der Zwi¬ schenraum wird von einer zunächst pastösen und dann aus¬ härtenden Härtermasse bzw. Klebemasse 5 ausgefüllt. Diese Klebemasse befindet sich in inaktiviertem Zustand in der in Fig. 3 dargestellten und insgesamt mit 6 bezeichneten Pa¬ trone, welche vorzugsweise als Glaspatrone ausgebildet ist. In der Patrone 6 sind gleichmäßig verteilt eine Vielzahl von Härterkapseln 7 enthalten, und zwar gleichmäßig verteilt in einer pastösen Masse 8, welche eine Entmischung der gleich¬ mäßigen Verteilung und damit eine Ansammlung der Härterkap¬ seln in einem Bereich der Patrone 6 verhindert. Die Glaspa- trone weist entsprechend Fig. 3 am oberen Stirnende einen Bo- den 9 auf und ist an ihrem unteren Stirnende offen. Da die Masse 8 eine pastöse Konsistenz aufweist, tritt sie nicht aus.An anchor bolt 1 has a section provided with an external thread 2 and a further partial area 3 which has a granular, sharp-edged surface structure on its surface. The surface structure 3 is formed by applying a resin coating to this section of the anchor bolt and then embedding quartz grains in this resin coating, the quartz grains being only partially embedded and partially protruding with sharp-edged areas, so that an emery-like surface is formed. The anchor bolt 1 is provided for insertion and fastening in a borehole 4 of a component. The inside diameter of the borehole 4 is somewhat larger than the outside diameter of the region 3 of the anchor bolt which has the granular, sharp-edged surface structure. The interspace is filled with an initially paste-like and then hardening hardener or adhesive 5. This adhesive is in the inactivated state in the cartridge shown in FIG. 3 and labeled 6 overall, which is preferably designed as a glass cartridge. A large number of hardener capsules 7 are contained in the cartridge 6, evenly distributed in a pasty mass 8, which prevents segregation of the uniform distribution and thus prevents the hardener capsules from accumulating in an area of the cartridge 6. According to FIG. 3, the glass cartridge has a bottom at the upper end the 9 and is open at its lower front. Since the mass 8 has a pasty consistency, it does not emerge.
Der gewünschte Verbundanker wird dadurch erstellt, daß die Bedienungsperson zunächst die Patrone 6 in das Bohrloch 4 (beliebig entweder mit dem offenen oder dem geschlossenen Stirnende nach vorn) einführt und dann anschließend den An¬ kerbolzen 1 mit dem die körnige, scharfkantige Oberflächen¬ struktur aufweisenden Ende in das Bohrloch 4 einführt und mittels eines geeigneten Gerätes in Pfeilrichtung A eine Schlagbewegung ausführt. Durch diese Schlagbewegung wird die Patrone 6 zerstört, und die pastöse Masse mit den darin gleichmäßig eingebetteten Härterkapseln kann nunmehr austre¬ ten. Bei weiteren Schlägen wird die Masse in dem Spaltbereich zwischen dem Innendurchmesser des Bohrloches und dem Außen¬ durchmesser des eingeführten Ankerbolzens - entsprechend der zeichnerischen Darstellung - nach oben bewegt. Hierbei werden die Härterkapseln an der körnigen, scharfkantigen Oberflä¬ chenstruktur 3 vorbeigeführt und dabei geöffnet, wodurch der Härter freigesetzt und die Aktivierung der Mörtelmasse einge¬ leitet wird. Die Abmessungen und die Menge der Klebemasse bzw. Mörtelmasse sind so aufeinander abgestimmt, daß nach dem Einschlagen des Ankerbolzens 1 in das Bohrloch 4 der Spalt bis zu dem Bereich, an dem das Außengewinde 2 beginnt, mit aktivierter Klebemasse gefüllt ist. Nach dem Aushärten der Klebemasse ist der gewünschte Verbundanker erstellt, und es kann an dem Außengewinde 2 des Ankerbolzens ein gewünschter Gegenstand befestigt werden.The desired composite anchor is created in that the operator first inserts the cartridge 6 into the borehole 4 (either with the open or the closed front end as desired) and then subsequently the anchor bolt 1 with the granular, sharp-edged surface structure Insert the end into the borehole 4 and execute a striking movement in the direction of arrow A by means of a suitable device. The cartridge 6 is destroyed by this impact movement, and the paste-like mass with the hardener capsules evenly embedded therein can now escape. In the event of further impacts, the mass in the gap area between the inside diameter of the borehole and the outside diameter of the inserted anchor bolt - corresponding to the graphic representation - moved upwards. In this case, the hardener capsules are guided past the granular, sharp-edged surface structure 3 and opened in the process, whereby the hardener is released and the activation of the mortar composition is initiated. The dimensions and the amount of adhesive or mortar are coordinated so that after the anchor bolt 1 has been driven into the borehole 4, the gap is filled with activated adhesive up to the area where the external thread 2 begins. After the adhesive has hardened, the desired composite anchor is created, and a desired object can be attached to the external thread 2 of the anchor bolt.
Das in Fig. 2 dargestellte weitere Ausführungsbeispiel eines Ankerbolzens unterscheidet sich von dem Ankerbolzen gemäß Fig. 1 dadurch, daß der hier mit 1' bezeichnete Ankerbolzen an seinem unteren Ende einen geschlitzten Stirnendbereich aufweist. Hierzu ist vorgesehen, daß das Stirnende 10 eine sich in Achsrichtung erstreckende Innenbohrung 11 aufweist, welche auf gegenüberliegenden Seiten mit Schlitzen 12 verse- hen ist. In die geschlitzte Bohrung ist ein Konus 13 einge¬ steckt, und zwar so, daß ein Teil des Konus über das Stirn¬ ende 10 vorsteht. Im übrigen weist der Ankerbolzen 1' in seinem in das Bohrloch einzuführenden Bereich ebenfalls eine körnige, scharfkantige Oberflächenstruktur 3' auf, welche bei dem Einbringvorgang ein Öffnen der Härterkapseln 7 bewirkt.The further exemplary embodiment of an anchor bolt shown in FIG. 2 differs from the anchor bolt according to FIG. 1 in that the anchor bolt, denoted here by 1 ', has a slotted front end region at its lower end. For this purpose, it is provided that the front end 10 has an inner bore 11 which extends in the axial direction and which is provided with slots 12 on opposite sides. hen is. A cone 13 is inserted into the slotted bore in such a way that part of the cone projects beyond the end 10. In addition, the anchor bolt 1 'also has a granular, sharp-edged surface structure 3' in its area to be inserted into the borehole, which causes the hardener capsules 7 to open during the insertion process.
Wie ohne weiteres ersichtlich, wird bei dem Einschlagen des Ankerbolzens 1' in ein Bohrloch der Konus bei Auftreffen auf den Boden des Bohrloches weiter in die geschlitzte Bohrung hineingetrieben, was ein Aufweiten der gegenüberliegenden Wandungsbereiche 14 und 15 zur Folge hat. Dadurch wird eine "Hinterschnittwirkung" erreicht. As can be readily seen, when the anchor bolt 1 'is driven into a borehole, the cone is driven further into the slotted borehole when it hits the bottom of the borehole, which causes the opposite wall regions 14 and 15 to expand. This creates an "undercut effect".

Claims

Patentansprüche claims
1. Vorrichtung zur Erstellung eines Verbundankers mit einem in ein Bohrloch od. dgl. eines Bauelementes unter mecha¬ nischer Zerstörung einer vorher in das Bohrloch einge¬ brachten, eine unaktivierte Klebemasse in Form von Ein¬ zelkomponenten (u.a. eine Härterkomponente) aufweisenden Patrone über einen Teilbereich seiner Länge einbringbaren Ankerbolzen, dessen eingebrachter Teilbereich von der in¬ folge der Zerstörung der Patrone aktivierten Klebemasse nach deren Aushärtung in dem Bohrloch festgehalten ist, dadurch gekennzeichnet, daß die Härterkomponente in der Patrone (6) in Form von Härterkapseln (7) vorliegt, und der zum Einbringen in das Bohrloch (4) vorgesehene Teil¬ bereich (3) des Ankerbolzens (1) eine körnige, bei dem Einbringvorgang ein Öffnen der Härterkapseln (7) bewir¬ kende, scharfkantige Oberflächenstruktur aufweist.1. Device for producing a composite anchor with a component in a borehole or the like, with mechanical destruction of a cartridge previously introduced into the borehole and containing an inactivated adhesive in the form of individual components (including a hardener component) over a cartridge Part of its length insertable anchor bolt, the part of which is held in place by the adhesive activated as a result of the destruction of the cartridge after it has hardened in the borehole, characterized in that the hardener component is present in the cartridge (6) in the form of hardener capsules (7), and the portion (3) of the anchor bolt (1) provided for insertion into the borehole (4) has a granular, sharp-edged surface structure which causes the hardener capsules (7) to open during the insertion process.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Härter in Mikrokapseln abgepackt ist.2. Device according to claim 1, characterized in that the hardener is packed in microcapsules.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Härter ein organisches Peroxid ist.3. Apparatus according to claim 2, characterized in that the hardener is an organic peroxide.
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch ge¬ kennzeichnet, daß die Patrone (6) eine pastöse, eine Ent¬ mischung einer vorgegebenen Verteilung der Einzelkompo¬ nenten verhindernde Masse aufweist.4. Device according to one of claims 1 to 3, characterized ge indicates that the cartridge (6) has a pasty, a mixture of Ent¬ a predetermined distribution of the individual components preventing mass.
5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch ge¬ kennzeichnet, daß die scharfkantige Oberflächenstruktur des Ankerbolzens (1) durch teilweise in eine auf die Oberfläche des Ankerbolzens aufgebrachte Harzbeschichtung eingebettete Quarzkörner gebildet ist. 5. Device according to one of claims 1 to 4, characterized ge indicates that the sharp-edged surface structure of the anchor bolt (1) is formed by partially embedded in a resin coating applied to the surface of the anchor bolt quartz grains.
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die die in die Harzbeschichtung eingebetteten Quarzkörner aufweisende Oberfläche des Ankerbolzens glatt ausgebildet ist.6. The device according to claim 5, characterized in that the embedded in the resin coating quartz grains having surface of the anchor bolt is smooth.
7. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die die in die Harzbeschichtung eingebetteten Quarzkörper aufweisende Oberfläche des Ankerbolzens profiliert ausge¬ bildet ist.7. The device according to claim 5, characterized in that the surface of the anchor bolt having the quartz body embedded in the resin coating is profiled.
8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch ge¬ kennzeichnet, daß der Ankerbolzen (1') in seinem dem Bo¬ den des Bohrlochs zuzuwendenden Stirnende (10) eine ge¬ schlitzte Bohrung (11) mit einem teilweise darin einge¬ steckten Konus (13) aufweist, welcher bei einem Einbrin¬ gen des Ankerbolzens (1') infolge eines Kontaktes des Ko¬ nus mit dem Boden des Bohrlochs ein Aufweiten des ge¬ schlitzten Stirnendbereiches bewirkt. 8. Device according to one of claims 1 to 7, characterized ge indicates that the anchor bolt (1 ') in its end facing the bottom of the borehole (10) has a slotted bore (11) with a part therein inserted cone (13) which, when the anchor bolt (1 ') is inserted as a result of contact of the cone with the bottom of the borehole, causes the slotted end region to widen.
PCT/DE1996/000245 1995-02-17 1996-02-16 Device for creating a composite anchor WO1996025602A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96902238A EP0809759A1 (en) 1995-02-17 1996-02-16 Device for creating a composite anchor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29502613.8 1995-02-17
DE29502613U DE29502613U1 (en) 1995-02-17 1995-02-17 Device for creating a composite anchor

Publications (1)

Publication Number Publication Date
WO1996025602A1 true WO1996025602A1 (en) 1996-08-22

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DE (1) DE29502613U1 (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5853841A (en) * 1996-01-20 1998-12-29 Itw Befestigungssysteme Gmbh Fastener assembly for a high-strength connection to a substructure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU8593875A (en) * 1975-10-22 1977-04-28 Chemfix Pty Ltd Metal rods and bolts
US4224971A (en) * 1970-12-04 1980-09-30 Mueller Dieter Dowel or anchoring means
DE3238751A1 (en) * 1982-10-20 1984-04-26 Artur Dr.H.C. 7244 Waldachtal Fischer Fixing element for anchoring in a drill hole using a reactive multi-component compound
DE3914072A1 (en) * 1989-04-28 1990-10-31 Hilti Ag Tie bolt for anchoring in hole in mortar - consists of load distribution part with flange on each side of retainer for mortar, and lengthwise slot

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4224971A (en) * 1970-12-04 1980-09-30 Mueller Dieter Dowel or anchoring means
AU8593875A (en) * 1975-10-22 1977-04-28 Chemfix Pty Ltd Metal rods and bolts
DE3238751A1 (en) * 1982-10-20 1984-04-26 Artur Dr.H.C. 7244 Waldachtal Fischer Fixing element for anchoring in a drill hole using a reactive multi-component compound
DE3914072A1 (en) * 1989-04-28 1990-10-31 Hilti Ag Tie bolt for anchoring in hole in mortar - consists of load distribution part with flange on each side of retainer for mortar, and lengthwise slot

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5853841A (en) * 1996-01-20 1998-12-29 Itw Befestigungssysteme Gmbh Fastener assembly for a high-strength connection to a substructure

Also Published As

Publication number Publication date
EP0809759A1 (en) 1997-12-03
DE29502613U1 (en) 1995-04-06

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