EP0830926B1 - Concrete container - Google Patents

Concrete container Download PDF

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Publication number
EP0830926B1
EP0830926B1 EP97112664A EP97112664A EP0830926B1 EP 0830926 B1 EP0830926 B1 EP 0830926B1 EP 97112664 A EP97112664 A EP 97112664A EP 97112664 A EP97112664 A EP 97112664A EP 0830926 B1 EP0830926 B1 EP 0830926B1
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EP
European Patent Office
Prior art keywords
concrete
concrete container
crosshead
flexible tube
container according
Prior art date
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Expired - Lifetime
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EP97112664A
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German (de)
French (fr)
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EP0830926A3 (en
EP0830926A2 (en
Inventor
Lothar Ing. Bitschnau
Harald Bitschnau
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MST VERMOEGENSERWALTUNGS GMBH & CO
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Mst Vermogenserwaltungs & Co GmbH
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Priority to AT97112664T priority Critical patent/ATE233155T1/en
Publication of EP0830926A2 publication Critical patent/EP0830926A2/en
Publication of EP0830926A3 publication Critical patent/EP0830926A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/0046—Storage or weighing apparatus for supplying ingredients
    • B28C7/0053—Storage containers, e.g. hoppers, silos, bins
    • B28C7/0076—Parts or details thereof, e.g. opening, closing or unloading means

Definitions

  • the invention relates to a concrete container for introducing concrete into Shutterings, consisting of an upwardly open container with one after bottom tapered bottom part with an outlet opening and an adjoining it flexible pipe, in particular a hose for distributing the concrete, the container and / or a supporting frame receiving it suspension means having, with which the concrete container is attachable to a hoist, wherein below the outlet of the concrete container a substantially horizontal lying, transversely to the free-hanging flexible tube slidable spar arranged whose displacement is at least approximately the diameter of the flexible Pipe corresponds and in its displacement below the outlet opening cross section and thereby the cross section of the flexible Rejuvenated tube.
  • this concrete container In the construction industry are used to fill formwork with concrete during construction of a building concrete container used.
  • this concrete container has an outlet opening with a slide valve, the is actuated by means of a pivotally mounted lever.
  • the on a hoist attached concrete container is employed on the side of a concrete transporter and fed with concrete via a filling channel.
  • the so filled concrete container lifts that Hoist and carries it to the point where the concrete in the formwork to bring is.
  • the man waiting at this point operates the lever to open the slide valve, and the concrete slips due to its own weight through the outlet opening in the formwork.
  • a closure (DD 146 985 A).
  • This consists of arranged on the longitudinal sides of the outlet opening, elastic seals and an elastic stretched underneath, passing from one narrow side to the other Closure web, which is attached to a narrow side and to a roller.
  • the roller has gears on both sides, which merge into the drive shafts, on which hand wheels sit.
  • the gears engage in racks, in whose extension rack springs are located.
  • These rack springs are arranged in bearing rails, which are under the racks Rolls are located.
  • the bearing rails rest on bearing rail compression springs in Housings that are attached to the middle stiffening level of the frame. Below the closure is a funnel with the hose.
  • This closure is not only very elaborate, it is also in considerable measure susceptible to interference, since the gears and the racks are an open gear, that only too easily contaminated with the rough operation provided here and is blocked.
  • a mouthpiece for applying viscous material which is a contraction valve with a controllable Valve body contains an elastic material.
  • the mouthpiece has two in a common longitudinal direction extending, about the same size pipes and a tube connecting them made of an elastically deformable material, which can be compressed between the two tubes.
  • An outer tube is with the two inner tubes by axially extending to them, funnel-shaped Parts sealingly connected so that an annular space is formed, which can be connected to a pressure medium source.
  • a mouthpiece This type has a considerable length and is therefore not for concrete containers suitable, and for just those reasons, already above and in the introductory closer are discussed.
  • closure known from FR 2 359 262 A1 should be mentioned.
  • tooth segments provided with each other comb and of which the one pair is pivotable by means of a lever.
  • Between the pair of tooth segments forming several spars are arranged their centers lie on a spiral line. Between these spars runs the fixed at the outflow, flexible hose by pivoting the tooth segments can be squeezed together.
  • This device is structurally complex and bulky, apart from the fact that tooth segments No expedient building components for the rough operation provided here represent.
  • CH 494 695 A discloses a concrete container having the features of the upper case of claim 1.
  • the two ends of the spar whose length is at least the diameter the flexible tube corresponds, by means of rods, ropes or chains on the concrete container are suspended and that hinged at the two ends of the spar tension springs are, whose other ends on the support frame of the concrete container are fixed and the tension springs are tensioned when the spar side of the discharge opening in his the flexible tube or its cross-section releasing position is located and on the spar, preferably in the central region, a Actuator is articulated, on the other hand with the support frame of the concrete container is connected and with which the spar displaceable against the force of the tension spring is.
  • Advantageous embodiments of the invention are in the subclaims recorded.
  • the concrete container 1 has an upper, cylindrical portion 2 and a adjoining the underside, tapered section 3, the down in one Outlet opening 4 opens.
  • Vertical struts 5, with their lower ends attached an open ring 6 are defined, form a support frame 7, which the concrete container 1 receives or with the concrete container 1 is firmly connected.
  • a flexible tube 8 preferably a rubber-elastic Hose attached, whose length can be several meters and at the lower orifice 9 a switch bracket 10 is arranged, which has a Line 11 is connected to a drive unit 12, which in turn from Support frame 7 is worn.
  • Fig. 1 shows the position of the spar 15, in which the cross section of the tube. 8 is released.
  • the tension springs 19 are tensioned and the actuator 18, the is designed here as a piston-cylinder unit is acted upon. Should be loaded the concrete container 1 or for the transport of the tube 8 closed be, so the actuator 18 is relieved, and by the force of the strained Tension springs 19, the spar 15 is pulled to the right (Fig. 1), wherein the hose 8 deformed in the manner shown in FIG. 2 manner, its cross section tapers and thus closed.
  • the handlebars 14 hold the Holm 15 in its operating position and prevent the sagging of the articulated Systems and also relieve the closed tube 8 of the lying on it Concrete weight.
  • the spar 15 moves on an arcuate Track between closed and open position, causing the folding and closing the hose 8 favors.
  • the drive unit 12 via which the actuator 18 is acted upon, can be supplied with electrical energy, either via power cable or by means of batteries and accumulators. Also other forms of energy, for example Compressed air, can be used here. Instead of a switch operation, the drive unit 12 are also controlled by radio.
  • the closure mechanism is essentially maintenance-free and protected against contamination by concrete. Because the closure is constructed that no moving parts come into contact with the fresh concrete, can be distributed relatively low-viscosity concrete without dripping Betonschlemme. If at the lower end of the hose 8, a removable switch is mounted or the concrete container is controlled by radio, the hose can be 8 or lower end in wall formwork or climbing formwork systems are lowered.
  • the invention described above is also in such concrete containers with Successful use, which is additionally equipped with a screw (AT 399 010). It is also possible on the concrete container below its outlet opening 4 a to arrange against the concrete container fixed abutment to which the flexible tube 8 can be applied if its cross-section tapers or closes is through the applied spar 15 ( Figure 1). Like the previous attempts However, such an abutment is not essential.
  • the mechanical tension springs 19 ensure that the tube 8 is closed is when no external power supply is available. Basically it is possible, instead of such mechanical tension springs, other components use, which show a comparable effect or possibly through external energy absorption are actuated. Instead of a just trained Holmes, as shown and described above, this spar can also be arcuate be designed or looped or ring. The to his shift below the outlet opening 4 provided actuators are then mutatis mutandis hinged to this so designed spar. The diameter of this Loop or this ring is then slightly larger than the outer diameter of the Hose 8, so that the hose through this loop or through this ring can sag freely.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Graft Or Block Polymers (AREA)
  • Centrifugal Separators (AREA)

Abstract

The container has two ends of a cross-member (15), the length of which corresponds at least to the diameter of the flexible pipe (8) connected to the container's outlet (4), is suspended on the container by links (14), cables or chains. Extension springs (19) are connected to both ends of the cross-member, with the other ends of the springs fixed on a support frame (6). The extension springs are stretched if the cross-member is located to the side of the outlet in its position releasing the flexible pipe or its flow passage.

Description

Die Erfindung bezieht sich auf einen Betoncontainer zum Einbringen von Beton in Schalungen, bestehend aus einem nach oben offenen Behälter mit einem sich nach unten verjüngenden Unterteil mit einer Auslaßöffnung und einem daran anschlie-ßenden flexiblen Rohr, insbesondere einem Schlauch zur Verteilung des Betons, wobei der Behälter und/oder ein ihn aufnehmendes Traggestell Aufhängemittel aufweist, mit welchen der Betoncontainer an ein Hebezeug anhängbar ist, wobei unterhalb der Auslaßöffnung des Betoncontainers ein im wesentlichen waagerecht liegender, quer zum freihängenden flexiblen Rohr verschiebbarer Holm angeordnet ist, dessen Verschiebeweg zumindest annähernd dem Durchmesser des flexiblen Rohres entspricht und der bei seiner Verschiebung den unterhalb der Auslaßöffnung befindlichen Bereich quert und dabei den Querschnitt des flexiblen Rohres verjüngt.The invention relates to a concrete container for introducing concrete into Shutterings, consisting of an upwardly open container with one after bottom tapered bottom part with an outlet opening and an adjoining it flexible pipe, in particular a hose for distributing the concrete, the container and / or a supporting frame receiving it suspension means having, with which the concrete container is attachable to a hoist, wherein below the outlet of the concrete container a substantially horizontal lying, transversely to the free-hanging flexible tube slidable spar arranged whose displacement is at least approximately the diameter of the flexible Pipe corresponds and in its displacement below the outlet opening cross section and thereby the cross section of the flexible Rejuvenated tube.

Im Bauwesen werden zum Füllen von Schalungen mit Beton bei der Errichtung eines Bauwerkes Betoncontainer verwendet. In der einfachsten Ausführungsform besitzt dieser Betoncontainer eine Auslaßöffnung mit einer Schieberklappe, die mittels eines schwenkbar gelagerten Hebels betätigbar ist. Der an einem Hebezeug angehängte Betoncontainer wird seitlich an einen Betontransporter angestellt und über eine Füllrinne mit Beton beschickt. Den so gefüllten Betoncontainer hebt das Hebezeug an und trägt es zu jener Stelle, an der der Beton in die Schalung einzubringen ist. Der an dieser Stelle bereitstehende Mann betätigt den Hebel zum Öffnen der Schieberklappe, und der Beton rutscht infolge seines eigenen Gewichtes durch die Auslaßöffnung in die Schalung. Ist der Betoncontainer auf diese Weise entleert, wird über den erwähnten Hebel die Schieberklappe wieder geschlossen, und anschließend wird der Betoncontainer mittels des Hebezeuges zum Betontransporter zurückgestellt, wo er neuerdings gefüllt wird. Betoncontainer dieser Art haben sich durchaus bewährt bei solchen Schalungen, deren oberer Rand frei zugänglich ist. Dies ist in der Regel bei Schalungen der Fall, wie sie im Wohn- und Siedlungsbau verwendet werden.In the construction industry are used to fill formwork with concrete during construction of a building concrete container used. In the simplest embodiment this concrete container has an outlet opening with a slide valve, the is actuated by means of a pivotally mounted lever. The on a hoist attached concrete container is employed on the side of a concrete transporter and fed with concrete via a filling channel. The so filled concrete container lifts that Hoist and carries it to the point where the concrete in the formwork to bring is. The man waiting at this point operates the lever to open the slide valve, and the concrete slips due to its own weight through the outlet opening in the formwork. Is the concrete container this way emptied, the slide valve is closed again by the mentioned lever, and then the concrete container by means of the hoist for concrete transporter reset, where it is filled recently. Concrete container of this Species have proven themselves in such formwork, the upper edge free is accessible. This is usually the case with formwork, as used in residential and housing construction can be used.

Die Zugänglichkeit einer Schalung ist allerdings sehr stark beeinträchtigt, wenn die Schalung als Gleitschalung ausgebildet ist, wie sie bei der Errichtung von turmartigen Bauwerken bevorzugt verwendet wird. Eine solche Schalung ist u.a. in der österreichischen Patentanmeldung A 634/91 (bekanntgemacht am 15. Juli 1992) gezeigt. Hier hängen die Schalungen bzw. Schalungsabschnitte an Tragjochen, die in der Regel beidseitig des zu errichtenden Mauerwerkes Arbeitsbühnen tragen und natürlich die Schalung selbst. Darüber hinaus stehen nach oben in dichter Folge Armierungseisen in beträchtlicher Höhe vor (Titelseite "Beton- und Stahlbetonbau" Heft 10/92/87. Jhg.). Mit Betoncontainern der oben beschriebenen Art können diese Gleitschalungen nicht mehr gefüllt werden, weil infolge der hier vorhandenen Einrichtungen der Betoncontainer nicht hinreichend nahe an den Schalungsrand gebracht werden kann. Aus diesem Grund wurden solche Betoncontainer mit einem Verteilerschlauch bestückt, wobei zwischen Schlauch und Auslaßöffnung des Behälters eine Schieberklappe vorgesehen ist. Am Traggestell des Betoncontainers ist ferner eine Standbühne befestigt, auf der ein Arbeiter steht, der diese Schieberklappe zu betätigen hat, wobei ein zweiter Mann die Mündungsöffnung des in der Regel mehrere Meter langen Schlauches zum Einfüllbereich der Schalung führt. Auf Weisung dieses Mannes betätigt der auf dem Traggestell Stehende die Schieberklappe. Da bei der Arbeit mit einer Gleitschalung das Bauwerk sozusagen in einem Zuge betoniert werden muß, ist der Betoncontainer ständig mit einem Mann zu besetzen, der zusammen mit diesem Container transportiert wird und der nur und allein die Aufgabe hat, diese Schieberklappe auf Weisung eines Mitarbeiters zu öffnen und zu schließen. Eine solche Arbeitsweise ist nicht besonders rationell. Um hier Abhilfe zu schaffen, wurde die Schieberklappe an die Mündungsöffnung des Verteilerschlauches verlegt, so daß der Mann der den Schlauch führt, auch die Schieberklappe zu betätigen hat. Diese Verteilerschläuche sind, um die Zugänglichkeit zum Schalungsrand sicherzustellen, in der Regel 6 - 7 m lang und haben einen Durchmesser von ca. 20 cm. Der Verteilerschlauch ist daher in diesem Falle zur Gänze mit Beton gefüllt und daher außerordentlich schwer, so daß meistens zwei Mann eingesetzt werden müssen, um das mit der Schieberklappe bewährte Mündungsstück des Verteilerschlauches zu bedienen. Abgesehen davon ist ja nicht auszuschließen, daß durch die vorstehenden Armierungseisen bei diesem rauhen Betrieb, wie ja auf einer Baustelle herrscht, der Verteilerschlauch auch verletzt und aufgerissen wird, in welchem Falle bei vollem Betoncontainer sich dessen Inhalt auf die Darunterstehenden entleeren würde. Das ist eine Masse mit einem Gewicht von mehreren Tonnen.The accessibility of a formwork, however, is very much impaired if the formwork is designed as a slip form, as in the construction of tower-like structures is preferably used. Such a formwork is u.a. in the Austrian patent application A 634/91 (published on 15 July 1992). Here, the formwork or formwork sections hang on Tragjochen, usually on both sides of the masonry to be built work platforms And of course the formwork itself. In addition, stand up in dense succession of reinforcing bars at considerable height (front page "Concrete and Reinforced concrete "issue 10/92/87. Jhg.) With concrete containers of the above Art, these slipforms can not be filled, because as a result of here existing facilities of concrete containers not sufficiently close to the Formwork edge can be brought. For this reason, such concrete containers equipped with a distributor hose, wherein between hose and Outlet opening of the container is provided a slide valve. On the support frame The concrete container is also a stage fixed on which a worker stands, who has to operate this slide valve, with a second man the Mouth opening of the usually several meters long hose to the filling area the formwork leads. On the instruction of this man pressed on the Support frame Standing the slide valve. Because when working with a slipform The building must be concreted in one go, so to speak, is the concrete container to constantly occupy with a man, who together with this container is transported and the only and only has the task, this slide valve to open and close at the direction of an employee. Such a way of working is not very efficient. To remedy this, the Slide valve laid to the mouth of the distributor tube, so that the man who leads the hose, also has to operate the slide valve. This Distribution hoses are to ensure accessibility to the formwork edge, usually 6 - 7 m long and have a diameter of about 20 cm. Of the Distributor hose is therefore completely filled with concrete in this case and therefore extremely heavy, so that usually two men must be used, around the mouthpiece of the distributor hose proven with the slide valve to use. Apart from that it is not excluded that by the above Reinforcing iron in this rough operation, yes yes on a construction site The distribution hose is also injured and torn open in which If the concrete container is full, its contents are dumped on the people under it would. This is a mass weighing several tons.

Um diesem Nachteil zu begegnen, wurde im Rahmen einer weiteren Entwicklung der vorbekannten Konstruktionen vorgesehen, daß zwischen der Auslaßöffnung des Behälters und dem Verteilschlauch ein Rohrstück vorgesehen wurde. In diesem Rohrstück ist eine motorisch antreibbare Schnecke gelagert. Der dem Antrieb der Schnecke dienende Motor ist am Behälter bzw. an dessen Traggestell befestigt. Die axiale Länge der Schnecke ist etwas länger als die axiale Länge des Rohrstückes. Am oberen Rand des Behälters ist ein in dessen Durchmesserebene liegender Tragholm befestigt, in dessen Mittelbereich der Motor für die Schnecke angeflanscht ist. Die Antriebswelle durchsetzt den Behälter mittig. Das Rohrstück liegt in einer Flucht mit der vertikalen Mittelachse des Behälters (AT 399 010 B). Bei dieser vorbekannten Konstruktion wird der Ausfluß des Betons mit der Schnecke gesteuert. Dies setzt allerdings voraus, daß der Beton eine hinreichend feste Konsistenz aufweist. Wird relativ flüssiger Beton verarbeitet, so reicht die Schnecke nicht aus, diesen dünnen, fließenden Beton verläßlich zurückzuhalten.To counter this disadvantage, was in the context of a further development the prior art constructions provided that between the outlet opening the container and the distribution hose a piece of pipe was provided. In this Pipe piece is mounted a motor driven worm. The drive the worm serving motor is attached to the container or on its support frame. The axial length of the screw is slightly longer than the axial length of the screw Pipe. At the upper edge of the container is one in the diameter plane mounted in the central region of the engine for the screw is flanged. The drive shaft passes through the container in the middle. The pipe piece lies in alignment with the vertical center axis of the container (AT 399 010 B). In this prior art construction, the outflow of the concrete with the Controlled by a screw. However, this presupposes that the concrete is adequate has solid consistency. If relatively liquid concrete is processed, that is enough Do not snail out reliably retaining this thin, flowing concrete.

Um diesem Nachteil zu begegnen, wurde bereits vorgeschlagen, unterhalb der Auslauföffnung einen Verschluß anzuordnen (DD 146 985 A). Dieser besteht aus an den Längsseiten der Auslauföffnung angeordneten, elastischen Dichtungen und einer darunter gespannten, von einer Schmalseite zur anderen reichenden elastischen Verschlußbahn, die an einer Schmalseite und an einer Walze befestigt ist. Die Walze besitzt an beiden Seiten Zahnräder, die in die Antriebswellen übergehen, auf denen Handräder sitzen. Die Zahnräder greifen in Zahnstangen ein, in deren Verlängerung sich Zahnstangendruckfedern befinden. Diese Zahnstangen-druckfedern sind in Lagerschienen angeordnet, in denen sich unter den Zahnstangen Rollen befinden. Die Lagerschienen ruhen auf Lagerschienendruckfedern im Gehäuse, die an der mittleren Aussteifungsebene des Gestelles befestigt sind. Unterhalb des Verschlusses befindet sich ein Trichter mit dem Schlauch. Dieser Verschluß ist nicht nur sehr aufwendig konstruiert, er ist auch in erheblichem Maße störanfällig, da die Zahnräder und die Zahnstangen ein offenes Getriebe darstellen, das bei dem hier vorgesehenen rauhen Betrieb nur allzu leicht verschmutzt und damit blockiert wird.To address this disadvantage has already been proposed below the Outlet opening to arrange a closure (DD 146 985 A). This consists of arranged on the longitudinal sides of the outlet opening, elastic seals and an elastic stretched underneath, passing from one narrow side to the other Closure web, which is attached to a narrow side and to a roller. The roller has gears on both sides, which merge into the drive shafts, on which hand wheels sit. The gears engage in racks, in whose extension rack springs are located. These rack springs are arranged in bearing rails, which are under the racks Rolls are located. The bearing rails rest on bearing rail compression springs in Housings that are attached to the middle stiffening level of the frame. Below the closure is a funnel with the hose. This closure is not only very elaborate, it is also in considerable measure susceptible to interference, since the gears and the racks are an open gear, that only too easily contaminated with the rough operation provided here and is blocked.

Des weiteren ist hier noch ein Mundstück zum Ausbringen zähfließenden Materials zu erwähnen (DE 33 10 176 A1), das ein Kontraktionsventil mit einem steuerbaren Ventilkörper aus einem elastischen Material enthält. Das Mundstück besitzt zwei in einer gemeinsamen Längsrichtung verlaufende, etwa gleich große Rohre und einen diese verbindenden Schlauch aus einem elastisch verformbaren Material, der zwischen den beiden Rohren zusammengepreßt werden kann. Ein Außenrohr ist mit den beiden inneren Rohren durch axial zu ihnen verlaufende, trichterförmige Teile dichtend verbunden, so daß ein ringförmiger Zwischenraum entsteht, der an eine Druckmittelquelle angeschlossen werden kann. Ein Mundstück dieser Art besitzt eine erhebliche Baulänge und ist daher für Betoncontainer nicht geeignet, und zwar aus eben jenen Gründen, die bereits oben und einleitend näher erörtert sind.Furthermore, here is a mouthpiece for applying viscous material to mention (DE 33 10 176 A1), which is a contraction valve with a controllable Valve body contains an elastic material. The mouthpiece has two in a common longitudinal direction extending, about the same size pipes and a tube connecting them made of an elastically deformable material, which can be compressed between the two tubes. An outer tube is with the two inner tubes by axially extending to them, funnel-shaped Parts sealingly connected so that an annular space is formed, which can be connected to a pressure medium source. A mouthpiece This type has a considerable length and is therefore not for concrete containers suitable, and for just those reasons, already above and in the introductory closer are discussed.

Weiterhin ist noch der aus der FR 2 359 262 A1 bekannte Verschluß zu erwähnen. Hier sind unterhalb der Auslaßöffnung des Containers paarweise angeordnete und voneinander distanzierte Zahnsegmente vorgesehen, die miteinander kämmen und von welchen das eine Paar mittels eines Hebels verschwenkbar ist. Zwischen den ein Paar bildenden Zahnsegmenten sind mehrere Holme angeordnet, deren Mittelpunkte auf einer Spirallinie liegen. Zwischen diesen Holmen verläuft der an der Ausflußöffnung festgelegte, flexible Schlauch, der durch Verschwenken der Zahnsegmente zusammengequetscht werden kann. Diese Einrichtung ist konstruktiv aufwendig und sperrig, abgesehen davon, daß Zahnsegmente für den hier vorgesehenen rauhen Betrieb keine zweckmäßigen Baukomponenten darstellen.Furthermore, the closure known from FR 2 359 262 A1 should be mentioned. Here are arranged in pairs below the outlet opening of the container and spaced apart tooth segments provided with each other comb and of which the one pair is pivotable by means of a lever. Between the pair of tooth segments forming several spars are arranged their centers lie on a spiral line. Between these spars runs the fixed at the outflow, flexible hose by pivoting the tooth segments can be squeezed together. This device is structurally complex and bulky, apart from the fact that tooth segments No expedient building components for the rough operation provided here represent.

Schlieβlich offenbart die CH 494 695 A einen Betoncontainer mit den Merkmalen des Oberbechgriffs von Anspruch 1.Finally, CH 494 695 A discloses a concrete container having the features of the upper case of claim 1.

Um den aufgezeigten Nachteilen zu begegnen, ist gemäß der Erfindung vorgesehen, daß die beiden Enden des Holmes, dessen Länge mindestens dem Durchmesser des flexiblen Rohres entspricht, mittels Lenkern, Seilen oder Ketten am Betoncontainer abgehängt sind und daß an den beiden Enden des Holmes Zugfedern angelenkt sind, deren jeweils anderen Enden am Traggestell des Betoncontainers festgelegt sind und die Zugfedern gespannt sind, wenn der Holm seitlich der Ausflußöffnung in seiner das flexible Rohr bzw. dessen Querschnitt freigebender Stellung sich befindet und am Holm, vorzugsweise in dessen Mittelbereich, ein Stellglied angelenkt ist, das andererseits mit dem Traggestell des Betoncontainers verbunden ist und mit welchem der Holm entgegen der Kraft der Zugfeder verschiebbar ist. Zweckmäßige Ausgestaltungen der Erfindung sind in den Unteransprüchen festgehalten.In order to counteract the drawbacks pointed out, it is provided according to the invention, that the two ends of the spar, whose length is at least the diameter the flexible tube corresponds, by means of rods, ropes or chains on the concrete container are suspended and that hinged at the two ends of the spar tension springs are, whose other ends on the support frame of the concrete container are fixed and the tension springs are tensioned when the spar side of the discharge opening in his the flexible tube or its cross-section releasing position is located and on the spar, preferably in the central region, a Actuator is articulated, on the other hand with the support frame of the concrete container is connected and with which the spar displaceable against the force of the tension spring is. Advantageous embodiments of the invention are in the subclaims recorded.

Um die Erfindung zu veranschaulichen, wird ein Ausführungsbeispiel anhand der Zeichnung näher erläutert, ohne dadurch die Erfindung auf dieses gezeigte Ausfuhrungsbeispiel einzuschränken. Es zeigen:

Fig. 1
eine Seitensicht des Betoncontainers;
Fig. 2
eine Seitensicht wie Fig. 1, jedoch mit dem an das flexible Rohr angestellten und dessen Querschnitt verjüngenden Holm;
Fig. 3
einen Horizontalschnitt nach der Linie III-III in Fig. 1.
In order to illustrate the invention, an embodiment will be explained with reference to the drawing, without thereby limiting the invention to this embodiment shown. Show it:
Fig. 1
a side view of the concrete container;
Fig. 2
a side view like Figure 1, but with the employed on the flexible tube and its cross-section tapered spar.
Fig. 3
a horizontal section along the line III-III in Fig. 1st

Der Betoncontainer 1 besitzt einen oberen, zylindrischen Abschnitt 2 und einen an dessen Unterseite anschließenden, kegeligen Abschnitt 3, der nach unten in eine Auslaßöffnung 4 mündet. Vertikale Streben 5, die mit ihren unteren Enden an einem offenen Ring 6 festgelegt sind, bilden ein Traggestell 7, das den Betoncontainer 1 aufnimmt bzw. mit dem der Betoncontainer 1 fest verbunden ist. An der Auslaßöffnung 4 ist ein flexibles Rohr 8, vorzugsweise ein gummielastischer Schlauch befestigt, dessen Länge mehrere Meter betragen kann und an dessen unterer Mündungsöffnung 9 eine Schalterkonsole 10 angeordnet ist, die über eine Leitung 11 mit einem Antriebsaggregat 12 verbunden ist, das seinerseits vom Traggestell 7 getragen ist.The concrete container 1 has an upper, cylindrical portion 2 and a adjoining the underside, tapered section 3, the down in one Outlet opening 4 opens. Vertical struts 5, with their lower ends attached an open ring 6 are defined, form a support frame 7, which the concrete container 1 receives or with the concrete container 1 is firmly connected. At the Outlet opening 4 is a flexible tube 8, preferably a rubber-elastic Hose attached, whose length can be several meters and at the lower orifice 9 a switch bracket 10 is arranged, which has a Line 11 is connected to a drive unit 12, which in turn from Support frame 7 is worn.

Am Betoncontainer 1 sind an zwei diametral liegenden Stellen Befestigungsbolzen 13 vorgesehen, an welchen Lenker 14 in Form von Stahlseilen, Ketten od. dgl. abgehängt sind, deren unteren Enden an einem Holm 15 befestigt sind. Dieser Holm 15 besteht aus einer Welle 16, auf der frei drehbare Walzen 17 gelagert sind. Dieser Holm 15 liegt etwas unterhalb der Auslaßöffnung 4, zweckmäßigerweise in der Ebene des offenen Ringes 6. Im Mittelbereich des Holmes 5 ist ein Stellglied 18 angeschlossen, dessen anderes Ende mit dem offenen Ring verbunden ist. Dieses Stellglied 18 kann als Kolben-Zylinder-Einheit ausgebildet sein oder als rein mechanischer Bauteil (Gewindegetriebe, Gewindestange, Zahnradgetriebe od. dgl.). An den beiden Enden des Holmes 15 sind ferner Zugfedern 19 angeordnet, die mit ihren jeweils anderen Enden an den einander zugewandten Abschnitten des offenen Ringes 6 befestigt sind.At the concrete container 1 fastening bolts are at two diametrically lying points 13 provided on which arm 14 in the form of steel cables, chains od. Like. are suspended, the lower ends are fixed to a spar 15. This Holm 15 consists of a shaft 16, mounted on the freely rotatable rollers 17 are. This spar 15 is slightly below the outlet opening 4, expediently in the plane of the open ring 6. In the central region of the spar 5 is a Actuator 18 is connected, the other end connected to the open ring is. This actuator 18 may be formed as a piston-cylinder unit or as a purely mechanical component (thread gear, threaded rod, gear transmission od. Like.). At the two ends of the spar 15 are also tension springs 19th arranged, with their respective other ends to the facing each other Sections of the open ring 6 are attached.

Fig. 1 zeigt nun die Lage des Holmes 15, in der der Querschnitt des Schlauches 8 freigegeben ist. Dabei sind die Zugfedern 19 gespannt und das Stellglied 18, das hier als Kolben-Zylinder-Einheit ausgebildet ist, ist beaufschlagt. Soll zum Beladen des Betoncontainers 1 oder zu dessen Transport der Schlauch 8 verschlossen werden, so wird das Stellglied 18 entlastet, und durch die Kraft der gespannten Zugfedern 19 wird der Holm 15 nach rechts (Fig. 1) gezogen, wobei der Schlauch 8 in der aus Fig. 2 ersichtlichen Weise verformt, sein Querschnitt verjüngt und somit verschlossen wird.Fig. 1 shows the position of the spar 15, in which the cross section of the tube. 8 is released. The tension springs 19 are tensioned and the actuator 18, the is designed here as a piston-cylinder unit is acted upon. Should be loaded the concrete container 1 or for the transport of the tube 8 closed be, so the actuator 18 is relieved, and by the force of the strained Tension springs 19, the spar 15 is pulled to the right (Fig. 1), wherein the hose 8 deformed in the manner shown in FIG. 2 manner, its cross section tapers and thus closed.

Diese Stellung nimmt der Holm 15 (Fig. 2) ein, wenn der Betoncontainer 1 gefüllt oder mittels eines Hebezeuges transportiert wird. Die Kraft der Federn 19 halten den Holm 15 in seiner Schließstellung, da während des Befüllens bzw. Transportes des Betoncontainers keine Energieversorgung bereitsteht. Soll der Betoncontainer 1 entleert werden, so wird das Stellglied 18 beaufschlagt und zieht dabei den Holm 15 gegen die Kraft der Federn 19 nach links (Fig. 1), so daß der Schlauch 8 an der Auslaßöffnung 4 frei hängt, wobei sein Querschnitt zur Gänze offen ist und der im Behälter befindliche Beton nach unten durch den Schlauch ausfließen kann. Die Zugfedern 19 sind wiederum vorgespannt. Die Walzen 17 am Holm 15 verhindern den Abrieb am Schlauch 8. Die Lenker 14 halten den Holm 15 in seiner Betriebslage und verhindern das Durchhängen des gelenkigen Systems und entlasten auch den geschlossenen Schlauch 8 von dem auf ihm liegenden Betongewicht. Darüberhinaus bewegt sich der Holm 15 auf einer bogenförmigen Bahn zwischen Schließ- und Offenstellung, was das Falten und Schließen des Schlauches 8 begünstigt.This position is assumed by the spar 15 (FIG. 2) when the concrete container 1 is filled or transported by means of a hoist. Keep the force of the springs 19 the spar 15 in its closed position, since during filling or transport the concrete container no energy supply is available. Should the concrete container 1 are emptied, the actuator 18 is acted upon and pulls it the spar 15 against the force of the springs 19 to the left (Fig. 1), so that the Hose 8 hangs freely at the outlet opening 4, with its cross-section entirely is open and the concrete in the container down through the hose can flow out. The tension springs 19 are in turn biased. The rollers 17 on the spar 15 prevent abrasion on the hose 8. The handlebars 14 hold the Holm 15 in its operating position and prevent the sagging of the articulated Systems and also relieve the closed tube 8 of the lying on it Concrete weight. In addition, the spar 15 moves on an arcuate Track between closed and open position, causing the folding and closing the hose 8 favors.

Das Antriebsaggregat 12, über welches das Stellglied 18 beaufschlagt wird, kann mit elektrischer Energie versorgt werden, entweder über Zuleitungskabel oder mittels Batterien und Akkumulatoren. Auch andere Energieformen, beispielsweise Preßluft, sind hier einsetzbar. Anstelle einer Schalterbetätigung kann das Antriebsaggregat 12 auch über Funk angesteuert werden.The drive unit 12, via which the actuator 18 is acted upon, can be supplied with electrical energy, either via power cable or by means of batteries and accumulators. Also other forms of energy, for example Compressed air, can be used here. Instead of a switch operation, the drive unit 12 are also controlled by radio.

Dank der erfindungsgemäßen Konstruktion werden keine mechanischen Teile vom Frischbeton berührt. Die Verschlußmechanik ist im wesentlichen wartungsfrei und vor Verschmutzung durch Beton geschützt. Da der Verschluß so konstruiert ist, daß keine beweglichen Teile mit dem Frischbeton in Berührung kommen, kann relativ dünnflüssiger Beton verteilt werden, ohne daß Betonschlemme abtröpfelt. Wenn am unteren Ende des Schlauches 8 ein abnehmbarer Schalter montiert ist oder der Betoncontainer per Funk gesteuert wird, kann der Schlauch 8 bzw. sein unteres Ende in Wandschalungen oder Kletterschalungssysteme abgesenkt werden.Thanks to the construction according to the invention are no mechanical parts of Touched fresh concrete. The closure mechanism is essentially maintenance-free and protected against contamination by concrete. Because the closure is constructed that no moving parts come into contact with the fresh concrete, can be distributed relatively low-viscosity concrete without dripping Betonschlemme. If at the lower end of the hose 8, a removable switch is mounted or the concrete container is controlled by radio, the hose can be 8 or lower end in wall formwork or climbing formwork systems are lowered.

Die vorstehend beschriebene Erfindung ist auch bei solchen Betoncontainern mit Erfolg einsetzbar, die zusätzlich mit einer Schnecke bestückt sind (AT 399 010). Es ist ferner möglich, am Betoncontainer unterhalb seiner Auslaßöffnung 4 ein gegenüber dem Betoncontainer feststehendes Widerlager anzuordnen, an welches der flexible Schlauch 8 anlegbar ist, wenn sein Querschnitt verjüngt bzw. verschlossen ist durch den angelegten Holm 15 (Fig. 1). Wie die bisherigen Versuche zeigen, ist ein solches Widerlager jedoch nicht unbedingt erforderlich.The invention described above is also in such concrete containers with Successful use, which is additionally equipped with a screw (AT 399 010). It is also possible on the concrete container below its outlet opening 4 a to arrange against the concrete container fixed abutment to which the flexible tube 8 can be applied if its cross-section tapers or closes is through the applied spar 15 (Figure 1). Like the previous attempts However, such an abutment is not essential.

Die mechanischen Zugfedern 19 stellen sicher, daß der Schlauch 8 verschlossen ist, wenn keine äußere Energieversorgung zur Verfügung steht. Grundsätzlich ist es möglich, anstelle von solchen mechanischen Zugfedern auch andere Bauteile einzusetzen, die eine damit vergleichbare Wirkung zeigen bzw. die evtl. durch äußere Energieaufnahme betätigbar sind. Anstelle eines gerade ausgebildeten Holmes, wie vorstehend gezeigt und beschrieben, kann dieser Holm auch bogenförmig gestaltet sein oder aber schlaufen- oder ringförmig. Die zu seiner Verschiebung unterhalb der Auslaßöffnung 4 vorgesehenen Stellglieder werden dann sinngemäß an diesen so gestalteten Holm angelenkt.Der Durchmesser dieser Schlaufe oder dieses Ringes ist dann etwas größer als der Außendurchmesser des Schlauches 8, so daß der Schlauch durch diese Schlaufe oder durch diesen Ring frei durchhängen kann. The mechanical tension springs 19 ensure that the tube 8 is closed is when no external power supply is available. Basically it is possible, instead of such mechanical tension springs, other components use, which show a comparable effect or possibly through external energy absorption are actuated. Instead of a just trained Holmes, as shown and described above, this spar can also be arcuate be designed or looped or ring. The to his shift below the outlet opening 4 provided actuators are then mutatis mutandis hinged to this so designed spar. The diameter of this Loop or this ring is then slightly larger than the outer diameter of the Hose 8, so that the hose through this loop or through this ring can sag freely.

LegendeLegend zu den Hinweisziffern:to the reference numbers:

11
Betoncontainerconcrete containers
22
zylindrischer Abschnittcylindrical section
33
kegeliger Abschnitttapered section
44
Auslaßöffnungoutlet
55
vertikale Strebenvertical struts
66
offener Ringopen ring
77
Traggestellsupporting frame
88th
flexibles Rohr - Schlauchflexible tube - hose
99
Mündungsöffnungmouth
1010
Schalterkonsoleswitch console
1111
Leitungmanagement
1212
Antriebsaggregatpower unit
1313
Befestigungsbolzenmounting bolts
1414
Lenkerhandlebars
1515
HolmHolm
1616
Wellewave
1717
Walzeroller
1818
Stellgliedactuator
1919
Zugfedermainspring

Claims (10)

  1. A concrete container for pouring concrete into shuttering, comprising a container open at the top with a downwardly tapering lower part with an outlet opening (4) and a flexible tube adjoining it, in particular a hose (8) for distributing the concrete, wherein the container and/or a support frame (7) receiving it comprises suspension means by which the concrete container (1) can be suspended on a lifting appliance, wherein a crosshead (15), which is arranged substantially horizontally and is displaceable transversely to the freely suspended flexible tube (8) and the displacement path of which corresponds at least approximately to the diameter of the flexible tube (8) and which during its displacement crosses the region situated below the outlet opening (4) of the concrete container (1) and, during this, reduces the cross-section of the flexible tube (8), is arranged below the outlet opening (4), wherein the two ends of the crosshead (15), the length of which corresponds at least to the diameter of the flexible tube (8), are suspended on the concrete container (1) by means of control arms (14), cables or chains, characterized in that the two ends of the crosshead (15) have articulated thereto tensile springs (19), the respective other ends of which are secured to the support frame (7) of the concrete container (1), and the tensile springs (19) are stressed when the crosshead (15) is at the side of the outflow opening (4) in its position releasing the flexible tube (8) or its cross-section, and the crosshead (15), preferably its central region, has articulated thereto an actuating member (18), which is connected at the other end to the support frame (7) of the concrete container (1) and by which the crosshead (15) is displaceable contrary to the force of the tensile spring (19).
  2. A concrete container according to Claim 1, characterized in that the tensile springs (19) are arranged substantially horizontally.
  3. A concrete container according to Claim 1, characterized in that the crosshead (15) has a shaft (16) with rollers (17) mounted thereon so as to be freely rotatable.
  4. A concrete container according to Claim 1, characterized in that the tensile springs (19) and the actuating member (18) are secured at one of their ends to an open ring (6) which is arranged below the outlet opening (4) of the concrete container (1) and which forms part of the support frame (7).
  5. A concrete container according to Claim 4, characterized in that the respective one set of ends of the tensile springs (19) is secured to the mutually facing portions of the open ring (6).
  6. A concrete container according to Claim 5, characterized in that the distance between the mutually facing portions of the open ring (6) is at least as large as the diameter of the flexible tube (8).
  7. A concrete container according to one of Claims 1 to 6, characterized in that it has provided thereon an abutment which is arranged in the displacement path of the crosshead (15) and against which the flexible tube (8) rests when its cross-section is reduced by the crosshead (15) placed against it.
  8. A concrete container according to one of Claims 1 to 7, characterized in that the crosshead (15) is designed in the form of a straight bar.
  9. A concrete container according to one of Claims 1 to 7, characterized in that the crosshead (15) is designed in the form of a loop or ring, and the flexible tube (8) passes through the said crosshead (15) in the form of a loop or ring.
  10. A concrete container according to Claim 1, characterized in that the control arms (14) are arranged on fastening pins (13) which are offset laterally with respect to a vertical diametric plane of the concrete container.
EP97112664A 1996-09-23 1997-07-24 Concrete container Expired - Lifetime EP0830926B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT97112664T ATE233155T1 (en) 1996-09-23 1997-07-24 CONCRETE CONTAINER

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT1682/96 1996-09-23
AT168296 1996-09-23
AT168296 1996-09-23

Publications (3)

Publication Number Publication Date
EP0830926A2 EP0830926A2 (en) 1998-03-25
EP0830926A3 EP0830926A3 (en) 1999-08-11
EP0830926B1 true EP0830926B1 (en) 2003-02-26

Family

ID=3518718

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97112664A Expired - Lifetime EP0830926B1 (en) 1996-09-23 1997-07-24 Concrete container

Country Status (5)

Country Link
US (1) US5956908A (en)
EP (1) EP0830926B1 (en)
JP (1) JPH10159339A (en)
AT (1) ATE233155T1 (en)
DE (1) DE59709376D1 (en)

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KR20120007047A (en) * 2009-04-20 2012-01-19 볼보 컨스트럭션 이큅먼트 에이비 Integrated paving system and method
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CN114347260B (en) * 2021-11-30 2024-03-29 浙江大经住工科技有限公司 Concrete mixing plant

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Also Published As

Publication number Publication date
JPH10159339A (en) 1998-06-16
ATE233155T1 (en) 2003-03-15
EP0830926A3 (en) 1999-08-11
EP0830926A2 (en) 1998-03-25
DE59709376D1 (en) 2003-04-03
US5956908A (en) 1999-09-28

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