EP1179649A2 - Injection fastening anchor - Google Patents

Injection fastening anchor Download PDF

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Publication number
EP1179649A2
EP1179649A2 EP01115442A EP01115442A EP1179649A2 EP 1179649 A2 EP1179649 A2 EP 1179649A2 EP 01115442 A EP01115442 A EP 01115442A EP 01115442 A EP01115442 A EP 01115442A EP 1179649 A2 EP1179649 A2 EP 1179649A2
Authority
EP
European Patent Office
Prior art keywords
anchor
tube
holes
mortar
axial section
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
EP01115442A
Other languages
German (de)
French (fr)
Other versions
EP1179649A3 (en
EP1179649B1 (en
Inventor
Horst Mayer
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
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 Fischerwerke Artur Fischer GmbH and Co KG filed Critical Fischerwerke Artur Fischer GmbH and Co KG
Publication of EP1179649A2 publication Critical patent/EP1179649A2/en
Publication of EP1179649A3 publication Critical patent/EP1179649A3/en
Application granted granted Critical
Publication of EP1179649B1 publication Critical patent/EP1179649B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E04G23/0222—Replacing or adding wall ties
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/02—Parts for attachment, e.g. flaps
    • E05D2005/0284—Parts for attachment, e.g. flaps for embedding in concrete or masonry
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/50—Mounting methods; Positioning
    • E05Y2600/52—Toolless
    • E05Y2600/526—Glueing or cementing

Definitions

  • the invention relates to an injection fastening anchor with the features of the preamble of claim 1.
  • Such an injection fastening anchor is known from DE 39 16 612 A1.
  • the well-known injection fastening anchor is for the renovation of double-layer masonry intended.
  • the known injection fastening anchor has an anchor tube, which in a front axial section is provided with holes in its tube wall. In doing so that end means the end of the anchor tube with the anchor tube ahead is inserted into a borehole in the masonry.
  • On the front with the Holes provided axial section closes a closed axial section of the Anchor tube in which the tube wall has no holes, openings, openings or the like. having.
  • the closed axial section can extend to a rear end of the anchor tube pass.
  • a borehole is through a facing masonry drilled through into a masonry of the double-shell masonry.
  • the known injection fastening anchor is inserted into the borehole so that the Holed axial section of the anchor tube in the masonry and the rear End of the anchor tube is in the facing masonry.
  • mortar or The like Injected into the anchor tube. So much mortar is injected that the mortar in the Insert the anchor rod past the anchor tube into the front axial section of the anchor tube arrives and exits the holes there. After the mortar has hardened, the injection anchor is in place anchored in the masonry.
  • the known injection fastening anchor has the disadvantage that a large amount of mortar to anchor it in the masonry is necessary because the entire interior volume of the anchor pipe must be filled with mortar so that the mortar can pass through the Holes in the front axial section of the anchor tube emerges.
  • the one lying in the anchor tube Anchor rod has a small in relation to the inner diameter of the anchor tube Diameter so that there is sufficient space between the anchor rod and the anchor pipe for the passage of the mortar remains.
  • the anchor rod of the well-known The injection fastening anchor therefore reduces the inner volume of the anchor tube only by a negligible fraction.
  • Another disadvantage of the known injection fastening anchor is its large outside diameter, which is required to make one Sufficiently large space between the anchor rod and the anchor tube for the To get passage of the mortar.
  • the known injection fastening anchor requires therefore a large-diameter borehole in the masonry.
  • the invention is based on the object of proposing an injection fastening anchor, who needs a small amount of mortar to anchor and one allows small borehole diameter.
  • the Injection fastening anchor according to the invention has an anchor rod, the Diameter corresponds to an inner diameter of the anchor tube or is slightly smaller.
  • the anchor rod of the injection fastening anchor according to the invention forms a kind Piston, with which a quantity of mortar injected into the anchor pipe into the front axial section is slidable where it is due to the displacement effect of the anchor rod and / or pressure exerted by the anchor rod exits through the holes.
  • Injection fastening anchor is the amount of mortar in the anchor pipe injected before the anchor rod is inserted into the anchor tube.
  • the anchor rod is a kind Piston forms, with which the mortar can be pushed into the front axial section of the anchor tube a small amount of mortar is sufficient, as the one with the holes Axial section adjoining closed axial section of the anchor tube is not included Mortar is filled.
  • the inside diameter of the anchor tube thus corresponds to a diameter of the anchor rod meant that the anchor rod acts as a kind of piston with which the mortar in the anchor pipe can be moved forward.
  • Another advantage of the invention is that it is an anchor tube with a smaller diameter enables because the anchor rod has the same or a slightly smaller diameter like the inner diameter of the anchor tube, there is no or only a small one Gap between the anchor rod and the anchor tube.
  • the smaller diameter of the anchor tube of the injection fastening anchor according to the invention has the advantage of one smaller hole diameter. The borehole is easier and with less effort buildable.
  • the anchor rod does not need the inside diameter of the entire length To have the anchor tube corresponding or slightly smaller in diameter, it is sufficient if the anchor rod has this diameter at one point at a front end or also has a distance from its front end. This way it will decrease the material necessary for the anchor rod.
  • the anchor rod has two axially apart spaced locations corresponding to the inner diameter of the anchor tube or slightly smaller diameter. These two places can be in the two Ends of the anchor rod are located or they can be spaced from the ends of the anchor rod be arranged.
  • This embodiment of the invention prevents a wrong Insert the anchor rod into the anchor tube, since both ends of the anchor rod are of the same design are.
  • Another advantage of this embodiment of the invention is that the Anchor rod inserted anchor rod closes the anchor tube in the area of its rear end. This prevents the mortar from being injected into the borehole Facing masonry after inserting the anchor rod into the anchor pipe of the mortar in the anchor tube enters.
  • the mortar connects the facing masonry with the preferably anchor rod protruding from the rear end of the anchor tube. Since no mortar enters the closed axial section of the anchor tube, is for connecting the Facing masonry with the supporting masonry reduced the amount of mortar required.
  • the anchor rod has in one embodiment of the invention, a roughening, a knurl, a thread or the like in an end portion coming into contact with the mortar.
  • the holes are offset from one another in the circumferential direction arranged in the front axial section of the anchor tube. This will avoid that with the anchor rod moved into the front axial section of the anchor tube Mortar essentially emerges from holes further back and only a small amount of mortar up to the holes in the anchor pipe arrives.
  • the measure according to the invention the number of holes per tube wall surface in rear area of the front, the hole-containing axial section of the anchor tube to be smaller than further ahead serves the purpose, if possible, of a Length of the front axial section even mortar outlet through the holes too to reach.
  • Another measure to create an axial section over the length of the holes of the anchor pipe is to achieve even mortar outlet, the holes in the rear area of the axial section obliquely against a flow direction of the mortar running and / or the holes in the front region of the axial section having the holes to be arranged diagonally in the flow direction of the mortar.
  • the weird Holes in the rear area of the mortar that are aligned against the direction of flow of the mortar the axial section having holes deteriorate the mortar leakage and Holes running diagonally in the direction of flow of the mortar in the front area of the anchor pipe favor the mortar leakage, which in total extends over the length of the Axial section having holes results in an approximately uniform mortar outlet.
  • the purpose of one over the length of the holes having axial section uniform mortar outlet can serve individually or can be used in combination.
  • the front end of the anchor tube can be reached through the holes in the tube wall preferably closed.
  • a circumferential sealing collar is on the outside of one provided at the rear end of the anchor tube. This sealing collar seals the anchor tube in the Drill hole in the facing masonry and prevents mortar from escaping into the Borehole is injected in the facing brickwork, between the anchor pipe and a borehole wall therethrough.
  • the anchor tube has a sealing collar on the outside a rear end of the axial portion having the holes.
  • This sealing band prevents mortar from escaping from the borehole in the supporting masonry the anchor tube and a borehole wall. This is the mortar, that emerged through the holes in the anchor tube and that the injection fastening anchor connects with the masonry.
  • the anchor rod is from a rear end of the Anchor tube before.
  • the injection fastening anchor 10 according to the invention shown in FIG. 1 has one Anchor tube 12 and an anchor rod 14.
  • the anchor tube 12 is a plastic tube that is closed at a front end 16.
  • the front end 16 is the end with which the anchor tube 12 is inserted into a borehole.
  • On a rear one At the end the anchor tube 12 is open, it has a conical sealing collar 18 on.
  • the anchor tube 12 At a distance from its front end, the anchor tube 12 has another circumferential sealing collar 20. In the illustrated embodiment of the invention this sealing collar 20 is located approximately in a longitudinal center of the anchor tube 12.
  • the sealing collar 20 divides the anchor tube 12 into a front axial section 22 which extends from the front end 16 to the sealing collar 20, and into a subsequent one Axial section 24, which in the illustrated embodiment of the invention Sealing collar 20 extends to the rear end of the anchor tube 12.
  • Axial section 24 is a tube wall of the anchor tube 12 with holes 26, 28, 30 provided in axially and in the circumferential direction evenly or unevenly over the front axial section 22 of the anchor tube 12 are arranged distributed.
  • the anchor tube 12 is closed, it has no holes or other Openings in his pipe wall.
  • the anchor rod 14 is made of steel, for example by galvanizing or other Measures or protected from corrosion by manufacturing from stainless steel.
  • the anchor rod 14 has circumferential locations at two axially spaced apart locations Frets 32 on which the anchor rod 14 has a diameter which is somewhat smaller than an inner diameter of the anchor tube 12.
  • the frets 32 are spaced from the ends of the anchor rod 14 is arranged. From the frets 32 to its ends Anchor rod 14 provided with threads 34, between the collars 32 is the anchor rod 14 smooth walls.
  • the anchor rod 14 has a length such that it is the front End 16 of the anchor tube 12 also collar 32 near the rear end of the anchor tube 12 is located in the anchor tube 12 when the anchor rod 14 is completely in the anchor tube 12 is introduced.
  • the thread 34 of the distal end 16 of the anchor tube 12 Anchor rod 14 protrudes from the rear end of the anchor tube 12 when the anchor rod 14 is fully inserted into the anchor tube 12.
  • the injection fastening anchor 10 serves to fasten a facing masonry 36 on a masonry 38 during the renovation of a double-shell Masonry 36, 38.
  • To set the injection fastening anchor 10 is first a borehole 40, 42 through the spaced in front of the masonry 38 Facing masonry 36 drilled into the supporting masonry 38.
  • the anchor tube 12 of the injection fastening anchor 10 according to the invention the borehole 40, 42 inserted so that the front, with the holes 26, 28, 30 provided axial section 22 of the anchor tube 12 in the borehole 42 in the supporting masonry 38 located.
  • the sealing collar 20 at the rear end of the front axial section 22 closes the borehole 42 in the masonry 38.
  • the rear end of the anchor tube 12 is located the closed axial section sinks into the borehole 40 in the facing brickwork 36 24 of the anchor tube 12 bridges the distance between the facing masonry 36 and the supporting masonry 38.
  • the sealing collar 18 at the rear end of the anchor tube 12 bears against a conversion of the borehole 40 in the facing brickwork 36.
  • the anchor tube 12 After the anchor tube 12 has been introduced into the borehole 40, 42 in the double-shell masonry 36, 38 becomes a synthetic resin mortar 44 by means of a mortar press, not shown injected into the anchor tube 12.
  • the amount of mortar injected is such that its volume approximately an internal volume of the anchor tube 12 within the front, with the Corresponds to holes 26, 28, 30 provided axial section 22 or is also somewhat smaller than that volume.
  • the anchor rod 14 is inserted into the anchor tube 12.
  • the anchor rod 14 acts as a kind of piston, it pushes the synthetic resin mortar 44 in the anchor tube 12 forward into the with the holes 26, 28, 30 provided axial region 22.
  • anchor rod 14 With the front end 16 near collar 32, anchor rod 14 essentially displaces the entire anchor tube 12 injected amount of synthetic resin mortar 44 into the front axial region 22 of the anchor tube 12, at most a small amount of mortar remains due to a small gap stick to the tube wall between the collar 32 and a tube wall of the anchor tube 12.
  • the injection fastening anchor 10 requires it Anchoring in the masonry 38 only a small amount of mortar.
  • a synthetic resin mortar in the borehole 40 in Facing brickwork 36 injected. Since the front end 16 of the anchor tube 12 distant Collar 32 of the anchor rod 14 closes the anchor tube 12 near its rear end and since the sealing collar 18 at the rear end of the anchor tube 12, the borehole 40 in the facing brickwork 36 is also closed in the borehole 40 in the facing masonry 36 small amount of mortar injected.
  • the synthetic resin mortar, not shown, in borehole 40 in the facing brickwork 36, after curing, the facing brickwork 36 connects with the anchor rod 14, so that the facing brickwork 36 at a predetermined distance from the masonry 38 is connected to the masonry 38.
  • the thread 34 on causes the end of the anchor rod 14 remote from the front end 16 of the anchor tube 12 a good connection of the anchor rod 14 with the injected synthetic resin mortar Facing masonry 36. Since the anchor rod has a thread 34 at both ends and has a collar 32, it cannot be accidentally turned upside down in the Anchor tube 12 are introduced.
  • the synthetic resin mortar Due to its viscosity and its flow behavior, the synthetic resin mortar has 44 the tendency to first and amplified from those further back in the front axial section 22 the anchor tube 12 holes 26 to emerge. In extreme cases this can do this cause that only a small amount of mortar from the holes 30 further ahead or no mortar comes out. At least to some extent even Mortar emerges from the holes 26, 28, 30 over the entire length of the front axial section 22 can be achieved with the injection fastening anchor 10 according to the invention various measures described below are provided. These measures can be realized individually or in any combination with each other.
  • a measure to achieve approximately the length of the axial section 22 It is possible to achieve even mortar discharge in the rear area of the front Axial section 22 arranged holes 26 obliquely from the inside out and back, so to arrange obliquely against a flow direction of the synthetic resin mortar 44.
  • the holes 30 are oblique from the inside to the outside and at the front, that is to say at an angle in the direction of flow of the synthetic resin mortar 44 in the anchor tube 12.
  • the holes 28 are aligned radially.
  • the orientation of the holes 26 in the rear region of the axial section 22 is oblique contrary to the direction of the dilution of the synthetic resin mortar counteracts mortar leakage, the alignment of the holes 30 in the front region of the axial section 22 obliquely in Flow direction of the synthetic resin mortar 44 improves the mortar discharge. Total results an approximately uniform mortar exit from the holes 26, 28, 30 over the entire Length of the axial section 22.
  • Another, additional or individual measure is to make holes 26, 28, 30 with different ones axial distance from the front end 16 of the anchor tube 12 in the circumferential direction to be staggered.
  • the holes 26, 28, 30 can for example as shown in Figure 2, be arranged in a grid.
  • Another option is a helical arrangement of the holes 26, 28, 30, as shown in Figure 3.
  • Mortar outlet is to be a distance of the holes 26, 28, 30 from the front To enlarge the end 16 of the anchor tube 12 to the rear, d. H. in the back of the Axial section 22 has a smaller number of holes 26 per surface than in the front area of the axial section 22 to be provided.

Abstract

Anchor comprises a plastic anchor pipe (12) and an anchor rod (14) that has a diameter equal to, or slightly less than, the diameter of the pipe. At the front end of the pipe sideways holes (26, 28, 30) are provided to allow mortar to escape from the anchor rod and form a seal with the surrounding brickwork. A rod collar (32) acts as a piston forcing the mortar into the forward section (22) of the pipe. Once the mortar is forced forwards by insertion of the anchor rod it is forced out through the holes at the forward end of the anchor tube, so that it bonds the anchor rod with the support brickwork.

Description

Die Erfindung betrifft einen Injektionsbefestigungsanker mit den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to an injection fastening anchor with the features of the preamble of claim 1.

Ein derartiger Injektionsbefestigungsanker ist bekannt aus der DE 39 16 612 A1. Der bekannte Injektionsbefestigungsanker ist zur Sanierung von zweischaligem Mauerwerk vorgesehen. Der bekannte Injektionsbefestigungsanker weist ein Ankerrohr auf, das in einem vorderen Axialabschnitt mit Löchern in seiner Rohrwand versehen ist. Dabei soll unter vorn dasjenige Ende des Ankerrohrs verstanden werden, mit dem Voran das Ankerrohr in ein Bohrloch in dem Mauerwerk eingeführt wird. An den vorderen, mit den Löchern versehenen Axialabschnitt schließt sich ein geschlossener Axialabschnitt des Ankerrohrs an, in dem die Rohrwand keine Löcher, Öffnungen, Durchbrüche oder dgl. aufweist. Der geschlossene Axialabschnitt kann bis zu einem hinteren Ende des Ankerrohrs reichen. Im Ankerrohr des bekannten Injektionsbefestigungsankers liegt ein gewellter Draht als Ankerstab ein, dessen Durchmesser ein Bruchteil eines Innendurchmessers des Ankerrohrs beträgt.Such an injection fastening anchor is known from DE 39 16 612 A1. The well-known injection fastening anchor is for the renovation of double-layer masonry intended. The known injection fastening anchor has an anchor tube, which in a front axial section is provided with holes in its tube wall. In doing so that end means the end of the anchor tube with the anchor tube ahead is inserted into a borehole in the masonry. On the front, with the Holes provided axial section closes a closed axial section of the Anchor tube in which the tube wall has no holes, openings, openings or the like. having. The closed axial section can extend to a rear end of the anchor tube pass. There is a corrugated in the anchor tube of the known injection fastening anchor Wire as an anchor rod, the diameter of which is a fraction of an inner diameter of the anchor tube.

Zur Sanierung eines zweischaligen Mauerwerks wird ein Bohrloch durch ein Verblendmauerwerk hindurch in ein Tragmauerwerk des zweischaligen Mauerwerks gebohrt. Der bekannte Injektionsbefestigungsanker wird so in das Bohrloch eingeführt, dass sich der Löcher aufweisende Axialabschnitt des Ankerrohrs im Tragmauerwerk und das hintere Ende des Ankerrohrs im Verblendmauerwerk befindet. Mit einer Presse wird Mörtel oder dgl. in das Ankerrohr injiziert. Es wird soviel Mörtel injiziert, dass der Mörtel an dem im Ankerrohr einliegenden Ankerstab vorbei bis in den vorderen Axialabschnitt des Ankerrohrs gelangt und dort aus den Löchern austritt. Nach Aushärten des Mörtels ist der Injektionsbefestigungsanker im Tragmauerwerk verankert.To renovate a two-layer masonry, a borehole is through a facing masonry drilled through into a masonry of the double-shell masonry. The known injection fastening anchor is inserted into the borehole so that the Holed axial section of the anchor tube in the masonry and the rear End of the anchor tube is in the facing masonry. With a press, mortar or The like. Injected into the anchor tube. So much mortar is injected that the mortar in the Insert the anchor rod past the anchor tube into the front axial section of the anchor tube arrives and exits the holes there. After the mortar has hardened, the injection anchor is in place anchored in the masonry.

Der bekannte Injektionsbefestigungsanker hat den Nachteil, dass eine große Mörtelmenge zu seiner Verankerung im Tragmauerwerk erforderlich ist, da das gesamte Innenvolumen des Ankerrohrs mit Mörtel gefüllt werden muss, damit der Mörtel durch die Löcher im vorderen Axialabschnitt des Ankerrohrs austritt. Der im Ankerrohr einliegende Ankerstab weist einen im Verhältnis zum Innendurchmesser des Ankerrohrs kleinen Durchmesser auf, damit ein ausreichend großer Freiraum zwischen dem Ankerstab und dem Ankerrohr für den Durchtritt des Mörtels verbleibt. Der Ankerstab des bekannten Injektionsbefestigungsankers verkleinert deswegen das Innenvolumen des Ankerrohrs nur um einen vernachlässigbaren Bruchteil. Weiterer Nachteil des bekannten Injektionsbefestigungsankers ist dessen großer Außendurchmesser, der erforderlich ist, um einen ausreichend großen Freiraum zwischen dem Ankerstab und dem Ankerrohr für den Durchtritt des Mörtels zu erhalten. Der bekannte Injektionsbefestigungsanker erfordert deswegen ein durchmessergroßes Bohrloch im Mauerwerk.The known injection fastening anchor has the disadvantage that a large amount of mortar to anchor it in the masonry is necessary because the entire interior volume of the anchor pipe must be filled with mortar so that the mortar can pass through the Holes in the front axial section of the anchor tube emerges. The one lying in the anchor tube Anchor rod has a small in relation to the inner diameter of the anchor tube Diameter so that there is sufficient space between the anchor rod and the anchor pipe for the passage of the mortar remains. The anchor rod of the well-known The injection fastening anchor therefore reduces the inner volume of the anchor tube only by a negligible fraction. Another disadvantage of the known injection fastening anchor is its large outside diameter, which is required to make one Sufficiently large space between the anchor rod and the anchor tube for the To get passage of the mortar. The known injection fastening anchor requires therefore a large-diameter borehole in the masonry.

Der Erfindung liegt die Aufgabe zu Grunde, einen Injektionsbefestigungsanker vorzuschlagen, der eine kleine Mörtelmenge zu seiner Verankerung benötigt und der einen kleinen Bohrlochdurchmesser ermöglicht.The invention is based on the object of proposing an injection fastening anchor, who needs a small amount of mortar to anchor and one allows small borehole diameter.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. Der erfindungsgemäße Injektionsbefestigungsanker weist einen Ankerstab auf, dessen Durchmesser einem Innendurchmesser des Ankerrohrs entspricht oder etwas kleiner ist. Der Ankerstab des erfindungsgemäßen Injektionsbefestigungsankers bildet eine Art Kolben, mit dem eine in das Ankerrohr injizierte Mörtelmenge in den vorderen Axialabschnitt schiebbar ist, wo sie durch Verdrängungswirkung des Ankerstabs und/oder aufgrund eines mit dem Ankerstab ausgeübten Drucks durch die Löcher austritt. Beim erfindungsgemäßen Injektionsbefestigungsanker wird die Mörtelmenge in das Ankerrohr injiziert bevor der Ankerstab in das Ankerrohr eingeführt wird. Da der Ankerstab eine Art Kolben bildet, mit dem der Mörtel in den vorderen Axialabschnitt des Ankerrohrs schiebbar ist, genügt eine kleine Mörtelmenge, da der sich an den mit den Löchern versehenen Axialabschnitt anschließende geschlossene Axialabschnitt des Ankerrohrs nicht mit Mörtel gefüllt wird. Mit einem etwas kleineren Durchmesser des Ankerstabs als es einem Innendurchmesser des Ankerrohrs entspricht ist somit ein Durchmesser des Ankerstabs gemeint, der den Ankerstab als eine Art Kolben wirken lässt, mit dem der Mörtel im Ankerrohr nach vorn verschiebbar ist. Dabei stört es nicht, wenn zwischen dem Ankerstab und dem Ankerrohr ein Spalt besteht, durch den Reste des in das Ankerrohr injizierten Mörtels an dessen Rohrwand im geschlossenen Axialabschnitt verbleiben, sofern ein Großteil des in das Ankerrohr injizierten Mörtels mit dem Ankerstab in dessen vorderen, die Löcher aufweisenden Axialabschnitt verschiebbar ist. Ein Ankerstab, dessen Durchmesser so klein ist, dass er beim Einführen in das Ankerrohr im Wesentlichen den injizierten Mörtel durchdringt und allenfalls eine geringe Mörtelmenge vor sich herschiebt soll nicht als Ankerstab mit etwas kleinerem Durchmesser als es dem Innendurchmesser des Ankerrohrs entspricht im Sinne der Erfindung verstanden werden.This object is achieved by the features of claim 1. The Injection fastening anchor according to the invention has an anchor rod, the Diameter corresponds to an inner diameter of the anchor tube or is slightly smaller. The anchor rod of the injection fastening anchor according to the invention forms a kind Piston, with which a quantity of mortar injected into the anchor pipe into the front axial section is slidable where it is due to the displacement effect of the anchor rod and / or pressure exerted by the anchor rod exits through the holes. In the invention Injection fastening anchor is the amount of mortar in the anchor pipe injected before the anchor rod is inserted into the anchor tube. Since the anchor rod is a kind Piston forms, with which the mortar can be pushed into the front axial section of the anchor tube a small amount of mortar is sufficient, as the one with the holes Axial section adjoining closed axial section of the anchor tube is not included Mortar is filled. With a slightly smaller diameter of the anchor rod than one The inside diameter of the anchor tube thus corresponds to a diameter of the anchor rod meant that the anchor rod acts as a kind of piston with which the mortar in the anchor pipe can be moved forward. It does not bother if between the anchor rod and there is a gap in the anchor tube through which remnants of the injected into the anchor tube Mortar remain on the pipe wall in the closed axial section, if one Most of the mortar injected into the anchor pipe with the anchor rod in its front, the axial section having holes is displaceable. An anchor rod whose diameter is so small that it is essentially the injected one when inserted into the anchor tube Mortar penetrates and at most pushes a small amount of mortar in front of it should not be used as an anchor rod with a slightly smaller diameter than its inner diameter the anchor tube corresponds to be understood in the sense of the invention.

Weiterer Vorteil der Erfindung ist, dass sie ein Ankerrohr mit kleinerem Durchmesser ermöglicht, da der Ankerstab denselben oder einen etwas kleineren Durchmesser aufweist wie der Innendurchmesser des Ankerrohrs, es besteht kein oder ein nur kleiner Spalt zwischen dem Ankerstab und dem Ankerrohr. Der kleinere Durchmesser des Ankerrohrs des erfindungsgemäßen Injektionsbefestigungsankers hat den Vorteil eines kleineren Bohrlochdurchmessers. Das Bohrloch ist leichter und mit geringerem Aufwand erstellbar.Another advantage of the invention is that it is an anchor tube with a smaller diameter enables because the anchor rod has the same or a slightly smaller diameter like the inner diameter of the anchor tube, there is no or only a small one Gap between the anchor rod and the anchor tube. The smaller diameter of the anchor tube of the injection fastening anchor according to the invention has the advantage of one smaller hole diameter. The borehole is easier and with less effort buildable.

Der Ankerstab braucht nicht über seine gesamte Länge den dem Innendurchmesser des Ankerrohrs entsprechenden oder etwas kleineren Durchmesser aufzuweisen, es genügt, wenn der Ankerstab diesen Durchmesser an einer Stelle an einem vorderen Ende oder auch mit Abstand von seinem vorderen Ende aufweist. Auf diese Weise verringert sich das für den Ankerstab notwendige Material.The anchor rod does not need the inside diameter of the entire length To have the anchor tube corresponding or slightly smaller in diameter, it is sufficient if the anchor rod has this diameter at one point at a front end or also has a distance from its front end. This way it will decrease the material necessary for the anchor rod.

Bei einer Weiterbildung der Erfindung weist der Ankerstab an zwei axial voneinander beabstandeten Stellen den dem Innendurchmesser des Ankerrohrs entsprechenden oder etwas kleineren Durchmesser auf. Diese beiden Stellen können sich an den beiden Enden des Ankerstabs befinden oder sie können mit Abstand von den Enden des Ankerstabs angeordnet sein. Diese Ausgestaltung der Erfindung verhindert ein verkehrtes Einführen des Ankerstabs in das Ankerrohr, da beide Enden des Ankerstabs gleich ausgebildet sind. Weiterer Vorteil dieser Ausgestaltung der Erfindung ist, dass der in das Ankerrohr eingeführte Ankerstab das Ankerrohr im Bereich seines hinteren Endes verschließt. Dadurch wird verhindert, dass beim Injizieren von Mörtel in das Bohrloch im Verblendmauerwerk nach dem Einführen des Ankerstabs in das Ankerrohr der Mörtel in das Ankerrohr eintritt. Der Mörtel verbindet das Verblendmauerwerk mit dem vorzugsweise aus dem hinteren Ende des Ankerrohrs vorstehenden Ankerstab. Da kein Mörtel in den geschlossenen Axialabschnitt des Ankerrohrs eintritt, ist die zur Verbindung des Verblendmauerwerks mit dem Tragmauerwerk erforderliche Mörtelmenge verringert. In a development of the invention, the anchor rod has two axially apart spaced locations corresponding to the inner diameter of the anchor tube or slightly smaller diameter. These two places can be in the two Ends of the anchor rod are located or they can be spaced from the ends of the anchor rod be arranged. This embodiment of the invention prevents a wrong Insert the anchor rod into the anchor tube, since both ends of the anchor rod are of the same design are. Another advantage of this embodiment of the invention is that the Anchor rod inserted anchor rod closes the anchor tube in the area of its rear end. This prevents the mortar from being injected into the borehole Facing masonry after inserting the anchor rod into the anchor pipe of the mortar in the anchor tube enters. The mortar connects the facing masonry with the preferably anchor rod protruding from the rear end of the anchor tube. Since no mortar enters the closed axial section of the anchor tube, is for connecting the Facing masonry with the supporting masonry reduced the amount of mortar required.

Um eine gute Verbindung des Mörtels mit dem Ankerstab zu erzielen, weist der Ankerstab bei einer Ausgestaltung der Erfindung eine Aufrauhung, einen Rändel, ein Gewinde oder dgl. in einem mit dem Mörtel in Berührung kommenden Endabschnitt auf. Dem gleichen Zweck dient eine gewellte, gewendelte oder dgl. Ausführung des Ankerstabs zumindest in seinem Endabschnitt.In order to achieve a good connection between the mortar and the anchor rod, the anchor rod has in one embodiment of the invention, a roughening, a knurl, a thread or the like in an end portion coming into contact with the mortar. the The same purpose is served by a corrugated, coiled or the like execution of the anchor rod at least in its end section.

Bei einer Ausgestaltung der Erfindung sind die Löcher in Umfangsrichtung versetzt zueinander in dem vorderen Axialabschnitt des Ankerrohrs angeordnet. Dadurch wird vermieden, dass der mit dem Ankerstab in den vorderen Axialabschnitt des Ankerrohrs verschobene Mörtel im Wesentlichen aus weiter hinten angeordneten Löchern austritt und eine nur geringe Mörtelmenge bis zu weiter vom im Ankerrohr angebrachten Löchern gelangt.In one embodiment of the invention, the holes are offset from one another in the circumferential direction arranged in the front axial section of the anchor tube. This will avoid that with the anchor rod moved into the front axial section of the anchor tube Mortar essentially emerges from holes further back and only a small amount of mortar up to the holes in the anchor pipe arrives.

Auch die bei einer Ausgestaltung der Erfindung im hinteren Bereich des vorderen Axialabschnitts kleineren Löcher dienen dem Zweck eines nach Möglichkeit über die gesamte axiale Länge des vorderen Axialabschnitts gleichmäßigen Mörtelaustritts durch die Löcher des Ankerrohrs.Also in an embodiment of the invention in the rear area of the front axial section Smaller holes serve the purpose of one over the whole if possible axial length of the front axial section even mortar outlet through the holes of the anchor tube.

Auch die erfindungsgemäße Maßnahme, die Anzahl der Löcher pro Rohrwandfläche im hinteren Bereich des vorderen, die Löcher aufweisenden Axialabschnitts des Ankerrohrs kleiner als weiter vorn vorzusehen dient dem Zweck, einen nach Möglichkeit über die Länge des vorderen Axialabschnitts gleichmäßigen Mörtelaustritt durch die Löcher zu erreichen.The measure according to the invention, the number of holes per tube wall surface in rear area of the front, the hole-containing axial section of the anchor tube to be smaller than further ahead serves the purpose, if possible, of a Length of the front axial section even mortar outlet through the holes too to reach.

Eine weitere Maßnahme, um einen über die Länge des Löcher aufweisenden Axialabschnitts des Ankerrohrs gleichmäßigen Mörtelaustritt zu erzielen ist es, die Löcher im hinteren Bereich des Axialabschnitts schräg entgegen einer Fließrichtung des Mörtels verlaufend und/oder die Löcher im vorderen Bereich des die Löcher aufweisenden Axialabschnitts schräg in Fließrichtung des Mörtels verlaufend anzuordnen. Die schräg entgegen der Fließrichtung des Mörtel ausgerichteten Löcher im hinteren Bereich des die Löcher aufweisenden Axialabschnitts verschlechtern den Mörtelaustritt und die schräg in Fließrichtung des Mörtels verlaufenden Löcher im vorderen Bereich des Ankerrohrs begünstigen den Mörtelaustritt, wodurch sich insgesamt über die Länge des die Löcher aufweisenden Axialabschnitts ein in etwa gleichmäßiger Mörtelaustritt ergibt. Another measure to create an axial section over the length of the holes of the anchor pipe is to achieve even mortar outlet, the holes in the rear area of the axial section obliquely against a flow direction of the mortar running and / or the holes in the front region of the axial section having the holes to be arranged diagonally in the flow direction of the mortar. The weird Holes in the rear area of the mortar that are aligned against the direction of flow of the mortar the axial section having holes deteriorate the mortar leakage and Holes running diagonally in the direction of flow of the mortar in the front area of the anchor pipe favor the mortar leakage, which in total extends over the length of the Axial section having holes results in an approximately uniform mortar outlet.

Die vorgenannten Maßnahmen, die dem Zweck eines über die Länge des die Löcher aufweisenden Axialabschnitts gleichmäßigen Mörtelaustritts dienen können einzeln oder in Kombination angewandt werden.The above measures, the purpose of one over the length of the holes having axial section uniform mortar outlet can serve individually or can be used in combination.

Um einen Mörtelaustritt am vorderen Ende des Ankerrohrs zu vermeiden und den Mörtelaustritt durch die Löcher in der Rohrwand zu erreichen ist das vordere Ende des Ankerrohrs vorzugsweise geschlossen.In order to avoid mortar leakage at the front end of the anchor pipe and the mortar outlet The front end of the anchor tube can be reached through the holes in the tube wall preferably closed.

Bei einer Ausgestaltung der Erfindung ist ein umlaufender Dichtbund außen an einem hinteren Ende des Ankerrohrs vorgesehen. Dieser Dichtbund dichtet das Ankerrohr im Bohrloch im Verblendmauerwerk ab und vermeidet einen Austritt von Mörtel, der in das Bohrloch im Verblendmauerwerk injiziert wird, zwischen dem Ankerrohr und einer Bohrlochwandung hindurch.In one embodiment of the invention, a circumferential sealing collar is on the outside of one provided at the rear end of the anchor tube. This sealing collar seals the anchor tube in the Drill hole in the facing masonry and prevents mortar from escaping into the Borehole is injected in the facing brickwork, between the anchor pipe and a borehole wall therethrough.

Bei einer Ausgestaltung der Erfindung weist das Ankerrohr einen Dichtbund außen an einem hinteren Ende des die Löcher aufweisenden Axialabschnitts auf. Dieser Dichtbund verhindert den Austritt von Mörtel aus dem Bohrloch im Tragmauerwerk zwischen dem Ankerrohr und einer Bohrlochwandung hindurch. Hier handelt es sich um den Mörtel, der durch die Löcher im Ankerrohr ausgetreten ist und der den Injektionsbefestigungsanker mit dem Tragmauerwerk verbindet.In one embodiment of the invention, the anchor tube has a sealing collar on the outside a rear end of the axial portion having the holes. This sealing band prevents mortar from escaping from the borehole in the supporting masonry the anchor tube and a borehole wall. This is the mortar, that emerged through the holes in the anchor tube and that the injection fastening anchor connects with the masonry.

Bei einer Ausgestaltung der Erfindung steht der Ankerstab aus einem hinteren Ende des Ankerrohrs vor. Durch Injektion von Mörtel in das Bohrloch im Verblendmauerwerk nach Einführen des Ankerstabs in das Ankerrohr lässt sich auf diese Weise der Injektionsbefestigungsanker mit dem Verblendmauerwerk verbinden.In one embodiment of the invention, the anchor rod is from a rear end of the Anchor tube before. By injecting mortar into the drilled hole in the facing brickwork In this way, the injection fastening anchor can be inserted into the anchor tube connect to the facing brickwork.

Die Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:

Figur 1
einen Achsschnitt eines erfindungsgemäßen Injektionsbefestigungsankers; und
Figuren 2 und 3
Lochanordnungsmöglichkeiten des erfindungsgemäßen Injektionsbefestigungsankers aus Figur 1.
The invention is explained in more detail below with reference to an embodiment shown in the drawing. Show it:
Figure 1
an axial section of an injection fastening anchor according to the invention; and
Figures 2 and 3
Hole arrangement options of the injection fastening anchor according to the invention from FIG. 1.

Der in Figur 1 dargestellte, erfindungsgemäße Injektionsbefestigungsanker 10 weist ein Ankerrohr 12 und einen Ankerstab 14 auf. Das Ankerrohr 12 ist ein Kunststoffrohr, das an einem vorderen Ende 16 geschlossen ist. Das vordere Ende 16 ist dasjenige Ende, mit dem voran das Ankerrohr 12 in ein Bohrloch eingeführt wird. An einem hinteren Ende ist das Ankerrohr 12 offen, es weist einen konisch nach außen stehenden Dichtbund 18 auf. Mit Abstand von seinem vorderen Ende weist das Ankerrohr 12 einen weiteren, umlaufenden Dichtbund 20 auf. Im dargestellten Ausführungsbeispiel der Erfindung befindet sich dieser Dichtbund 20 ungefähr in einer Längsmitte des Ankerrohrs 12. Der Dichtbund 20 unterteilt das Ankerrohr 12 in einen vorderen Axialabschnitt 22, der sich vom vorderen Ende 16 bis zum Dichtbund 20 erstreckt, und in einen sich anschließenden Axialabschnitt 24, der im dargestellten Ausführungsbeispiel der Erfindung vom Dichtbund 20 bis zum hinteren Ende des Ankerrohrs 12 reicht. Im vorderen Axialabschnitt 22 ist eine Rohrwand des Ankerrohrs 12 mit Löchern 26, 28, 30 versehen, die in axialer und in Umfangsrichtung gleichmäßig oder ungleichmäßig über den vorderen Axialabschnitt 22 des Ankerrohrs 12 verteilt angeordnet sind. In dem sich anschließenden Axialabschnitt 24 ist das Ankerrohr 12 geschlossen, es weist keine Löcher oder sonstigen Öffnungen in seiner Rohrwand auf.The injection fastening anchor 10 according to the invention shown in FIG. 1 has one Anchor tube 12 and an anchor rod 14. The anchor tube 12 is a plastic tube that is closed at a front end 16. The front end 16 is the end with which the anchor tube 12 is inserted into a borehole. On a rear one At the end the anchor tube 12 is open, it has a conical sealing collar 18 on. At a distance from its front end, the anchor tube 12 has another circumferential sealing collar 20. In the illustrated embodiment of the invention this sealing collar 20 is located approximately in a longitudinal center of the anchor tube 12. The sealing collar 20 divides the anchor tube 12 into a front axial section 22 which extends from the front end 16 to the sealing collar 20, and into a subsequent one Axial section 24, which in the illustrated embodiment of the invention Sealing collar 20 extends to the rear end of the anchor tube 12. In the front axial section 22 is a tube wall of the anchor tube 12 with holes 26, 28, 30 provided in axially and in the circumferential direction evenly or unevenly over the front axial section 22 of the anchor tube 12 are arranged distributed. In the following Axial section 24, the anchor tube 12 is closed, it has no holes or other Openings in his pipe wall.

Der Ankerstab 14 besteht aus Stahl, er ist beispielsweise durch Verzinken oder sonstige Maßnahmen oder durch Herstellung aus nicht rostendem Stahl vor Korrosion geschützt. Der Ankerstab 14 weist an zwei axial voneinander beabstandeten Stellen umlaufende Bünde 32 auf, an denen der Ankerstab 14 einen Durchmesser aufweist, der etwas kleiner als ein Innendurchmesser des Ankerrohrs 12 ist. Die Bünde 32 sind mit Abstand von den Enden des Ankerstabs 14 angeordnet. Von den Bünden 32 zu seinen Enden ist der Ankerstab 14 mit Gewinden 34 versehen, zwischen den Bünden 32 ist der Ankerstab 14 glattwandig. Der Ankerstab 14 weist eine solche Länge auf, dass sich sein dem vorderen Ende 16 des Ankerrohrs 12 ferner Bund 32 nahe dem hinteren Ende des Ankerrohrs 12 im Ankerrohr 12 befindet, wenn der Ankerstab 14 vollständig in das Ankerrohr 12 eingeführt ist. Das dem vorderen Ende 16 des Ankerrohrs 12 ferne Gewinde 34 des Ankerstabs 14 steht aus dem hinteren Ende des Ankerrohrs 12 vor, wenn der Ankerstab 14 vollständig in das Ankerrohr 12 eingeführt ist.The anchor rod 14 is made of steel, for example by galvanizing or other Measures or protected from corrosion by manufacturing from stainless steel. The anchor rod 14 has circumferential locations at two axially spaced apart locations Frets 32 on which the anchor rod 14 has a diameter which is somewhat smaller than an inner diameter of the anchor tube 12. The frets 32 are spaced from the ends of the anchor rod 14 is arranged. From the frets 32 to its ends Anchor rod 14 provided with threads 34, between the collars 32 is the anchor rod 14 smooth walls. The anchor rod 14 has a length such that it is the front End 16 of the anchor tube 12 also collar 32 near the rear end of the anchor tube 12 is located in the anchor tube 12 when the anchor rod 14 is completely in the anchor tube 12 is introduced. The thread 34 of the distal end 16 of the anchor tube 12 Anchor rod 14 protrudes from the rear end of the anchor tube 12 when the anchor rod 14 is fully inserted into the anchor tube 12.

Der erfindungsgemäße Injektionsbefestigungsanker 10 dient der Befestigung eines Verblendmauerwerks 36 an einem Tragmauerwerk 38 bei der Sanierung eines zweischaligen Mauerwerks 36, 38. Zum Setzen des Injektionsbefestigungsankers 10 wird zunächst ein Bohrloch 40, 42 durch das mit Abstand vor dem Tragmauerwerk 38 angebrachte Verblendmauerwerk 36 hindurch in das Tragmauerwerk 38 gebohrt. Anschließend wird das Ankerrohr 12 des erfindungsgemäßen Injektionsbefestigungsankers 10 in das Bohrloch 40, 42 so eingeführt, dass sich der vordere, mit den Löchern 26, 28, 30 versehene Axialabschnitt 22 des Ankerrohrs 12 im Bohrloch 42 im Tragmauerwerk 38 befindet. Der Dichtbund 20 am hinteren Ende des vorderen Axialabschnitts 22 schließt das Bohrloch 42 im Tragmauerwerk 38 ab. Das hintere Ende des Ankerrohrs 12 befindet sich versenkt im Bohrloch 40 im Verblendmauerwerk 36, der geschlossene Axialabschnitt 24 des Ankerrohrs 12 überbrückt den Abstand zwischen dem Verblendmauerwerk 36 und dem Tragmauerwerk 38. Der Dichtbund 18 am hinteren Ende des Ankerrohrs 12 liegt an einer Wandlung des Bohrlochs 40 im Verblendmauerwerk 36 an.The injection fastening anchor 10 according to the invention serves to fasten a facing masonry 36 on a masonry 38 during the renovation of a double-shell Masonry 36, 38. To set the injection fastening anchor 10 is first a borehole 40, 42 through the spaced in front of the masonry 38 Facing masonry 36 drilled into the supporting masonry 38. Subsequently the anchor tube 12 of the injection fastening anchor 10 according to the invention the borehole 40, 42 inserted so that the front, with the holes 26, 28, 30 provided axial section 22 of the anchor tube 12 in the borehole 42 in the supporting masonry 38 located. The sealing collar 20 at the rear end of the front axial section 22 closes the borehole 42 in the masonry 38. The rear end of the anchor tube 12 is located the closed axial section sinks into the borehole 40 in the facing brickwork 36 24 of the anchor tube 12 bridges the distance between the facing masonry 36 and the supporting masonry 38. The sealing collar 18 at the rear end of the anchor tube 12 bears against a conversion of the borehole 40 in the facing brickwork 36.

Nach dem Einbringen des Ankerrohrs 12 in das Bohrloch 40, 42 im zweischaligen Mauerwerk 36, 38 wird ein Kunstharzmörtel 44 mittels einer nicht dargestellten Mörtelpresse in das Ankerrohr 12 injiziert. Die injizierte Mörtelmenge ist so bemessen, dass ihr Volumen in etwa einem Innenvolumen des Ankerrohrs 12 innerhalb des vorderen, mit den Löchern 26, 28, 30 versehenen Axialabschnitts 22 entspricht oder auch etwas kleiner ist als dieses Volumen. Anschließend an das Injizieren des Kunstharzmörtels 44 in das Ankerrohr 12 wird der Ankerstab 14 in das Ankerrohr 12 eingeführt. Der Ankerstab 14 wirkt als eine Art Kolben, er schiebt den Kunstharzmörtel 44 im Ankerrohr 12 nach vorn in den mit den Löchern 26, 28, 30 versehenen Axialbereich 22. Durch Verdrängungswirkung des Ankerstabs 14 und/oder einen vom Ankerstab 14 auf den Kunstharzmörtel 44 ausgeübten Druck tritt der Kunstharzmörtel 44 durch die Löcher 26, 28, 30 aus und verbindet nach dem Aushärten den erfindungsgemäßen Injektionsbefestigungsanker 10 mit dem Tragmauerwerk 38. Der Injektionsbefestigungsanker 10 ist im Tragmauerwerk 38 verankert. Durch das Gewinde 34 des Ankerstabs 14 wird eine gute Verbindung des Ankerstabs 14 mit dem Kunstharzmörtel 44 erzielt. Der Bund 20 am hinteren Ende des vorderen Axialabschnitts 22 des Ankerrohrs 12 verhindert einen Austritt von Kunstharzmörtel 44 aus dem Bohrloch 42 im Tragmauerwerk 38. Mit dem dem vorderen Ende 16 nahen Bund 32 verschiebt der Ankerstab 14 im Wesentlichen die gesamte, in das Ankerrohr 12 injizierte Kunstharzmörtelmenge 44 in den vorderen Axialbereich 22 des Ankerrohrs 12, allenfalls eine geringe Mörtelmenge bleibt aufgrund eines kleinen Spalts zwischen dem Bund 32 und einer Rohrwand des Ankerrohrs 12 an der Rohrwand haften. Dadurch benötigt der erfindungsgemäße Injektionsbefestigungsanker 10 zu seiner Verankerung im Tragmauerwerk 38 eine nur geringe Mörtelmenge. After the anchor tube 12 has been introduced into the borehole 40, 42 in the double-shell masonry 36, 38 becomes a synthetic resin mortar 44 by means of a mortar press, not shown injected into the anchor tube 12. The amount of mortar injected is such that its volume approximately an internal volume of the anchor tube 12 within the front, with the Corresponds to holes 26, 28, 30 provided axial section 22 or is also somewhat smaller than that volume. Subsequent to the injection of the synthetic resin mortar 44 into the anchor pipe 12, the anchor rod 14 is inserted into the anchor tube 12. The anchor rod 14 acts as a kind of piston, it pushes the synthetic resin mortar 44 in the anchor tube 12 forward into the with the holes 26, 28, 30 provided axial region 22. By displacement of the anchor rod 14 and / or one exerted by the anchor rod 14 on the synthetic resin mortar 44 Pressure emerges from the resin mortar 44 through the holes 26, 28, 30 and connects after curing the injection fastening anchor 10 according to the invention with the supporting masonry 38. The injection fastening anchor 10 is in the supporting masonry 38 anchored. By the thread 34 of the anchor rod 14, a good connection of the Anchor rods 14 achieved with the synthetic resin mortar 44. The federal government 20 at the rear of the front axial section 22 of the anchor tube 12 prevents escape of synthetic resin mortar 44 from the borehole 42 in the supporting masonry 38. With the front end 16 near collar 32, anchor rod 14 essentially displaces the entire anchor tube 12 injected amount of synthetic resin mortar 44 into the front axial region 22 of the anchor tube 12, at most a small amount of mortar remains due to a small gap stick to the tube wall between the collar 32 and a tube wall of the anchor tube 12. As a result, the injection fastening anchor 10 according to the invention requires it Anchoring in the masonry 38 only a small amount of mortar.

Zur Verbindung des Verblendmauerwerks 36 mit dem Injektionsbefestigungsanker 10 wird nach dem Einführen des Ankerstabs 14 ein Kunstharzmörtel in das Bohrloch 40 im Verblendmauerwerk 36 injiziert. Da der dem vorderen Ende 16 des Ankerrohrs 12 ferne Bund 32 des Ankerstabs 14 das Ankerrohr 12 nahe dessen hinteren Endes verschließt und da der Dichtbund 18 am hinteren Ende des Ankerrohrs 12 das Bohrloch 40 im Verblendmauerwerk 36 verschließt ist auch die in das Bohrloch 40 im Verblendmauerwerk 36 injizierte Mörtelmenge gering. Der nicht dargestellte Kunstharzmörtel im Bohrloch 40 im Verblendmauerwerk 36 verbindet nach dem Aushärten das Verblendmauerwerk 36 mit dem Ankerstab 14, so dass das Verblendmauerwerk 36 im vorgegebenen Abstand vom Tragmauerwerk 38 mit dem Tragmauerwerk 38 verbunden ist. Das Gewinde 34 an dem dem vorderen Ende 16 des Ankerrohrs 12 fernen Ende des Ankerstabs 14 bewirkt eine gute Verbindung des Ankerstabs 14 über den injizierten Kunstharzmörtel mit dem Verblendmauerwerk 36. Da der Ankerstab an beiden Enden mit einem Gewinde 34 versehen ist und einen Bund 32 aufweist, kann er nicht versehentlich verkehrt herum in das Ankerrohr 12 eingeführt werden.To connect the facing brickwork 36 to the injection fastening anchor 10 after inserting the anchor rod 14, a synthetic resin mortar in the borehole 40 in Facing brickwork 36 injected. Since the front end 16 of the anchor tube 12 distant Collar 32 of the anchor rod 14 closes the anchor tube 12 near its rear end and since the sealing collar 18 at the rear end of the anchor tube 12, the borehole 40 in the facing brickwork 36 is also closed in the borehole 40 in the facing masonry 36 small amount of mortar injected. The synthetic resin mortar, not shown, in borehole 40 in the facing brickwork 36, after curing, the facing brickwork 36 connects with the anchor rod 14, so that the facing brickwork 36 at a predetermined distance from the masonry 38 is connected to the masonry 38. The thread 34 on causes the end of the anchor rod 14 remote from the front end 16 of the anchor tube 12 a good connection of the anchor rod 14 with the injected synthetic resin mortar Facing masonry 36. Since the anchor rod has a thread 34 at both ends and has a collar 32, it cannot be accidentally turned upside down in the Anchor tube 12 are introduced.

Aufgrund seiner Zähflüssigkeit und seines Fließverhaltens hat der Kunstharzmörtel 44 die Tendenz, zuerst und verstärkt aus den weiter hinten im vorderen Axialabschnitt 22 des Ankerrohrs 12 gelegenen Löchern 26 auszutreten. Dies kann im Extremfall dazu führen, dass aus den weiter vorn gelegenen Löchern 30 eine nur geringe Mörtelmenge oder überhaupt kein Mörtel austritt. Um einen zumindest einigermaßen gleichmäßigen Mörtelaustritt aus den Löchern 26, 28, 30 über die gesamte Länge des vorderen Axialabschnitts 22 zu erzielen sind beim erfindungsgemäßen Injektionsbefestigungsanker 10 verschiedene, nachfolgend beschriebene Maßnahmen vorgesehen. Diese Maßnahmen können einzeln für sich oder in beliebiger Kombination miteinander verwirklicht sein. Eine Maßnahme zur Erzielung eines über die Länge des Axialabschnitts 22 in etwa gleichmäßigem Mörtelaustritt zu erzielen ist es, die im hinteren Bereich des vorderen Axialabschnitts 22 angeordneten Löcher 26 schräg von innen nach außen und hinten, also schräg entgegen einer Fließrichtung des Kunstharzmörtels 44 anzuordnen. Im vorderen Bereich des Axialabschnitts 22 sind die Löcher 30 schräg von innen nach außen und vorn, also schräg in Fließrichtung des Kunstharzmörtels 44 im Ankerohr 12 angebracht. Im mittleren Bereich des Axialabschnitts 22 sind die Löcher 28 radial ausgerichtet. Die Ausrichtung der Löcher 26 im hinteren Bereich des Axialabschnitts 22 schräg entgegen der Fleißrichtung des Kunstharzmörtels wirkt einem Mörtelaustritt entgegen, die Ausrichtung der Löcher 30 im vorderen Bereich des Axialabschnitts 22 schräg in Fließrichtung des Kunstharzmörtels 44 verbessert den Mörtelaustritt. Insgesamt ergibt sich ein in etwa gleichmäßiger Mörtelaustritt aus den Löchern 26, 28, 30 über die gesamte Länge des Axialabschnitts 22.Due to its viscosity and its flow behavior, the synthetic resin mortar has 44 the tendency to first and amplified from those further back in the front axial section 22 the anchor tube 12 holes 26 to emerge. In extreme cases this can do this cause that only a small amount of mortar from the holes 30 further ahead or no mortar comes out. At least to some extent even Mortar emerges from the holes 26, 28, 30 over the entire length of the front axial section 22 can be achieved with the injection fastening anchor 10 according to the invention various measures described below are provided. These measures can be realized individually or in any combination with each other. A measure to achieve approximately the length of the axial section 22 It is possible to achieve even mortar discharge in the rear area of the front Axial section 22 arranged holes 26 obliquely from the inside out and back, so to arrange obliquely against a flow direction of the synthetic resin mortar 44. In the front In the area of the axial section 22, the holes 30 are oblique from the inside to the outside and at the front, that is to say at an angle in the direction of flow of the synthetic resin mortar 44 in the anchor tube 12. In the central region of the axial section 22, the holes 28 are aligned radially. The orientation of the holes 26 in the rear region of the axial section 22 is oblique contrary to the direction of the dilution of the synthetic resin mortar counteracts mortar leakage, the alignment of the holes 30 in the front region of the axial section 22 obliquely in Flow direction of the synthetic resin mortar 44 improves the mortar discharge. Total results an approximately uniform mortar exit from the holes 26, 28, 30 over the entire Length of the axial section 22.

Weitere Maßnahmen für einen gleichmäßigen Mörtelaustritt über die gesamte Länge des Axialabschnitts 22 des Ankerrohrs 12 sind in Figuren 2 und 3 dargestellt, die den vorderen Axialabschnitt 22 des Ankerrohrs 12 in Seitenansicht zeigen. Eine dieser Maßnahmen ist es, die Löcher 26 im hinteren Bereich des Axialabschnitts 22 kleiner und die Löcher 30 im vorderen Bereich des Axialabschnitts 22 größer auszubilden.Further measures for even mortar leakage over the entire length of the axial section 22 of the anchor tube 12 are shown in Figures 2 and 3, the Show front axial section 22 of the anchor tube 12 in a side view. One of those measures is the holes 26 in the rear of the axial section 22 smaller and the Make holes 30 larger in the front area of the axial section 22.

Eine weitere, zusätzliche oder einzelne Maßnahme ist es, Löcher 26, 28, 30 mit unterschiedlichem axialem Abstand vom vorderen Ende 16 des Ankerrohrs 12 in Umfangsrichtung versetzt zueinander anzuordnen. Dabei können die Löcher 26, 28, 30 beispielweise wie in Figur 2 dargestellt, rasterartig angeordnet sein. Eine weitere Möglichkeit ist eine wendelförmige Anordnung der Löcher 26, 28, 30, wie in Figur 3 dargestellt.Another, additional or individual measure is to make holes 26, 28, 30 with different ones axial distance from the front end 16 of the anchor tube 12 in the circumferential direction to be staggered. The holes 26, 28, 30 can for example as shown in Figure 2, be arranged in a grid. Another option is a helical arrangement of the holes 26, 28, 30, as shown in Figure 3.

Eine weitere Maßnahme, einen über die Länge des Axialabschnitt 22 in etwa gleichmäßigen Mörtelaustritt zu erreichen ist es, einen Abstand der Löcher 26, 28, 30 vom vorderen Ende 16 des Ankerrohrs 12 nach hinten zu vergrößern, d. h. im hinteren Bereich des Axialabschnitts 22 eine geringere Anzahl Löcher 26 pro Fläche als im vorderen Bereich des Axialabschnitts 22 vorzusehen.Another measure, one approximately uniform over the length of the axial section 22 Mortar outlet is to be a distance of the holes 26, 28, 30 from the front To enlarge the end 16 of the anchor tube 12 to the rear, d. H. in the back of the Axial section 22 has a smaller number of holes 26 per surface than in the front area of the axial section 22 to be provided.

Claims (13)

Injektionsbefestigungsanker für zweischaliges Mauerwerk, mit einem Ankerrohr, das in einem vorderen Axialabschnitt Löcher in seiner Rohrwand aufweist, und das in einem sich anschließenden Axialabschnitt geschlossen ist, und mit einem in das Ankerrohr einführbaren Ankerstab, dadurch gekennzeichnet, dass der Ankerstab (14) einen Durchmesser aufweist, der einem Innendurchmesser des Ankerrohrs (12) entspricht oder etwas kleiner ist.Injection fastening anchor for double-layer masonry, with an anchor tube which has holes in its tube wall in a front axial section and which is closed in a subsequent axial section, and with an anchor rod which can be inserted into the anchor tube, characterized in that the anchor rod (14) has a diameter has an inner diameter of the anchor tube (12) or is slightly smaller. Injektionsbefestigungsanker nach Anspruch1, dadurch gekennzeichnet, dass der Durchmesser des Ankerstabs (14) nur axial begrenzt dem Innendurchmesser des Ankerrohrs (12) entspricht oder etwas kleiner ist und dass der Ankerstab (14) auf einer übrigen axialen Länge einen kleineren Durchmesser aufweist.Injection fastening anchor according to claim 1, characterized in that the diameter of the anchor rod (14) corresponds only axially to a limited extent to the inner diameter of the anchor tube (12) or is somewhat smaller and that the anchor rod (14) has a smaller diameter over a remaining axial length. Injektionsbefestigungsanker nach Anspruch 2, dadurch gekennzeichnet, dass der Ankerstab (14) an zwei axial voneinander beabstandeten Stellen (32) einen Durchmesser aufweist, der einem Innendruchmesser des Ankerrohrs (12) entspricht oder etwas kleiner ist.Injection fastening anchor according to claim 2, characterized in that the anchor rod (14) at two axially spaced apart locations (32) has a diameter which corresponds to an inside diameter of the anchor tube (12) or is somewhat smaller. Injektionsbefestigungsanker nach Anspruch 1, dadurch gekennzeichnet, dass der Ankerstab (14) eine Aufrauhung, einen Rändel, ein Gewinde (34) oder dgl. in einem Endabschnitt aufweist.Injection fastening anchor according to claim 1, characterized in that the anchor rod (14) has a roughening, a knurl, a thread (34) or the like in one end section. Injektionsbefestigungsanker nach Anspruch 1, dadurch gekennzeichnet, dass der Ankerstab (14) eine Wellung, Wendelung oder dgl. in einem Endabschnitt aufweist.Injection fastening anchor according to claim 1, characterized in that the anchor rod (14) has a corrugation, spiral or the like. In one end section. Injektionsbefestigungsanker nach Anspruch 1, dadurch gekennzeichnet, dass die Löcher (26, 28, 30) in der Rohrwand des Ankerrohrs (12) in Umfangsrichtung versetzt zueinander angeordnet sind. Injection fastening anchor according to claim 1, characterized in that the holes (26, 28, 30) in the tube wall of the anchor tube (12) are arranged offset to one another in the circumferential direction. Injektionsbefestigungsanker nach Anspruch 1, dadurch gekennzeichnet, dass das Ankerrohr (12) vorn größere Löcher (30) als hinten in dem die Löcher (26, 28, 30) aufweisenden Axialabschnitt (22) aufweist.Injection fastening anchor according to claim 1, characterized in that the anchor tube (12) has larger holes (30) at the front than at the rear in the axial section (22) having the holes (26, 28, 30). Injektionsbefestigungsanker nach Anspruch 1, dadurch gekennzeichnet, dass das Ankerrohr (12) vorn eine größere Anzahl an Löchern (30) pro Rohrwandfläche als hinten in dem die Löcher (26, 28, 30) aufweisenden Axialabschnitt (22) aufweist.Injection fastening anchor according to Claim 1, characterized in that the anchor tube (12) has a larger number of holes (30) at the front per tube wall surface than at the rear in the axial section (22) having the holes (26, 28, 30). Injektionsbefestigungsanker nach Anspruch 1, dadurch gekennzeichnet, dass die Löcher (26) hinten in dem die Löcher (26, 28, 30) aufweisenden Axialabschnitt (22) des Ankerrohrs (12) von innen nach außen schräg nach hinten und/oder dass die Löcher (30) vorn in dem die Löcher (26, 28, 30) aufweisenden Axialabschnitt (22) des Ankerrohrs (12) von innen nach außen schräg nach vorn verlaufen.Injection fastening anchor according to Claim 1, characterized in that the holes (26) at the rear in the axial section (22) of the anchor tube (12) which has the holes (26, 28, 30) from the inside outwards obliquely to the rear and / or that the holes ( 30) at the front in the axial section (22) of the anchor tube (12), which has the holes (26, 28, 30), run obliquely forwards from the inside to the outside. Injektionsbefestigungsanker nach Anspruch 1, dadurch gekennzeichnet, dass das Ankerrohr (12) an einem vorderen Ende (16) geschlossen ist.Injection fastening anchor according to claim 1, characterized in that the anchor tube (12) is closed at a front end (16). Injektionsbefestigungsanker nach Anspruch 1, dadurch gekennzeichnet, dass das Ankerrohr (12) einen Dichtbund (18) außen an einem hinteren Ende aufweist.Injection fastening anchor according to claim 1, characterized in that the anchor tube (12) has a sealing collar (18) on the outside at a rear end. Injektionsbefestigungsanker nach Anspruch 1, dadurch gekennzeichnet, dass das Ankerrohr (12) einen Dichtbund (20) außen an einem hinteren Ende des die Löcher (26, 28, 30) aufweisenden Axialabschnitt (22) aufweist.Injection fastening anchor according to claim 1, characterized in that the anchor tube (12) has a sealing collar (20) on the outside at a rear end of the axial section (22) having the holes (26, 28, 30). Injektionsbefestigungsanker nach Anspruch 1, dadurch gekennzeichnet, dass der Ankerstab (14) aus einem hinteren Ende des Ankerrohrs (12) vorsteht.Injection fastening anchor according to claim 1, characterized in that the anchor rod (14) protrudes from a rear end of the anchor tube (12).
EP01115442A 2000-08-09 2001-06-27 Injection fastening anchor Expired - Lifetime EP1179649B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10038801A DE10038801A1 (en) 2000-08-09 2000-08-09 Injection-securable anchor
DE10038801 2000-08-09

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EP1179649A2 true EP1179649A2 (en) 2002-02-13
EP1179649A3 EP1179649A3 (en) 2003-05-21
EP1179649B1 EP1179649B1 (en) 2005-06-01

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EP01115442A Expired - Lifetime EP1179649B1 (en) 2000-08-09 2001-06-27 Injection fastening anchor

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EP (1) EP1179649B1 (en)
AT (1) ATE296932T1 (en)
CZ (1) CZ20012884A3 (en)
DE (2) DE10038801A1 (en)
HU (1) HUP0102960A3 (en)
PL (1) PL349060A1 (en)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
EP1517051A1 (en) * 2003-09-19 2005-03-23 Ardesi Serramenti di Ardesi Enrico & C. S.n.c. Hinge for wall fastening by chemical resin
EP2072838A3 (en) * 2007-12-20 2010-07-14 HILTI Aktiengesellschaft Anchor pipe for an injection attachment anchor
EP3508665A1 (en) * 2018-01-09 2019-07-10 fischerwerke GmbH & Co. KG Façade retainer, fixing assembly with such a façade retainer and method for fixing a façade retainer

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DE10303801A1 (en) 2003-01-31 2004-08-12 Fischerwerke Artur Fischer Gmbh & Co. Kg Injection-securable anchor
DE102004029018A1 (en) 2004-06-16 2005-12-29 Fischerwerke Artur Fischer Gmbh & Co. Kg Injection fastening assembly and method for injection attachment
DE102011084815A1 (en) 2010-10-22 2012-04-26 Koenig & Bauer Aktiengesellschaft Printing machine comprises waste heat recovery system, heat exchanger, and heat pump which heats the air and provides heated air to drying device
CN105298524A (en) * 2015-09-14 2016-02-03 中铁二十五局集团第四工程有限公司 Deformation reinforcing method of karst cave tunnel initial support

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1517051A1 (en) * 2003-09-19 2005-03-23 Ardesi Serramenti di Ardesi Enrico & C. S.n.c. Hinge for wall fastening by chemical resin
EP2072838A3 (en) * 2007-12-20 2010-07-14 HILTI Aktiengesellschaft Anchor pipe for an injection attachment anchor
EP3508665A1 (en) * 2018-01-09 2019-07-10 fischerwerke GmbH & Co. KG Façade retainer, fixing assembly with such a façade retainer and method for fixing a façade retainer

Also Published As

Publication number Publication date
CZ20012884A3 (en) 2002-03-13
EP1179649A3 (en) 2003-05-21
PL349060A1 (en) 2002-02-11
EP1179649B1 (en) 2005-06-01
HU0102960D0 (en) 2001-09-28
HUP0102960A2 (en) 2002-03-28
ATE296932T1 (en) 2005-06-15
HUP0102960A3 (en) 2002-05-28
DE10038801A1 (en) 2002-02-21
DE50106372D1 (en) 2005-07-07

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