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EP0838563A1 - Concrete pump boom - Google Patents

Concrete pump boom Download PDF

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Publication number
EP0838563A1
EP0838563A1 EP97113634A EP97113634A EP0838563A1 EP 0838563 A1 EP0838563 A1 EP 0838563A1 EP 97113634 A EP97113634 A EP 97113634A EP 97113634 A EP97113634 A EP 97113634A EP 0838563 A1 EP0838563 A1 EP 0838563A1
Authority
EP
European Patent Office
Prior art keywords
arm
mast
concrete
concrete placing
pipe
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
EP97113634A
Other languages
German (de)
French (fr)
Other versions
EP0838563B1 (en
Inventor
Dietmar FÜGEL
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.)
Putzmeister Concrete Pumps GmbH
Original Assignee
Putzmeister AG
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 Putzmeister AG filed Critical Putzmeister AG
Publication of EP0838563A1 publication Critical patent/EP0838563A1/en
Application granted granted Critical
Publication of EP0838563B1 publication Critical patent/EP0838563B1/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
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • 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
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G21/0418—Devices for both conveying and distributing with distribution hose
    • E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck

Definitions

  • the invention relates to a concrete placing boom for stationary and mobile concrete pumps with several Articulated joints connected at least partially a box or tubular profile mast arms and one of several via pipe bends and pipe slewing rings articulated together, along guided and attached to the individual mast arms Pipe segments existing concrete delivery line.
  • the invention is based on the object the well-known concrete placing boom improve that when collapsing the mast smaller space is required.
  • the solution according to the invention is based on the idea that the cavity in a box or tube profile showing mast arm to accommodate the concrete delivery line can be used.
  • proposed according to the invention that at least one of the pipe segments of the concrete delivery line at least in sections through the interior of one of a box or Mast tubes having a tubular profile are passed through is. This measure is in addition to that for folding of the articulated mast advantageous space saving additionally achieved that the articulated arm in question at the same time the function of a protective tube for the tube segment has an accident risk due to wear avoids bursting pipe segment.
  • An advantageous embodiment of the invention provides before that the mast arm in question at least one the Interior stiffening bulkhead contains that with a breakthrough for the passage of the pipe segment is provided.
  • plastic guide tube or tub is arranged to accommodate the pipe segment.
  • the expedient part of the pipe segment penetrating the mast integrally formed. If necessary, can at least one outside wall opening on the mast arm intended to facilitate assembly and maintenance will.
  • the hollow mast arms are also suitable to accommodate hydraulic and / or electrical Supply and / or measuring lines, such as, for example for controlling the articulated drives and for angle measuring systems arranged in the articulated joints required are.
  • the truck mixer pump shown in Fig. 1 consists in essentially from a four-axle chassis 10, one in the middle of the chassis 10 around Axis 12 rotatably arranged, with its loading and Extend outlet opening 14 diagonally to the rear Mixing drum 16, one in the area of the rear axles 18, 18 'arranged on the chassis 10 two-cylinder thick matter pump 20 with material feed container 22 and one in the area of the front axles 24, 24 'near the driver's cab 26 on a bearing block 28 around a vertical Axis 30 rotatably mounted, from three at the articulated joints A, B and C mast arms can be swiveled towards each other 1,2,3 composite concrete placing boom 32 as Carrier for a concrete delivery line 34.
  • the concrete delivery line 34 is composed of several tube segments 34 ', 34' ', 34 '' 'assembled at the hinge ends the mast arms 1,2,3 over pipe bends 36 ', 36' ', 36' '' and Pipe rotary connections 38 articulated together and are attached to the mast arms.
  • the first mast arm 1 has a closed box-shaped Profile (Fig. 5a and b) and two on a crank 40 interconnected arm sections 42, 44.
  • the Crank 40 is positioned and dimensioned such that the mast arm 1 in the folded state of the distribution mast surrounds the mixing drum 16 on the outside (Fig. 3).
  • the pipe segment 34 ' is adapted to the mast arm 1 also cranked.
  • the tube segment 34 with tube holders 46 externally connected to the mast arm 1 while he in the area of the arm portion 44 through the interior 48 of the box-shaped mast arm 1 to the joint B is passed.
  • the through the arm portion 44th passed between the two pipe couplings 50 extending tube segment section 52 is in one piece educated.
  • a plastic tube 54 ' (Fig. 5a) or a tub 54 '' arranged by Reach openings in the bulkhead 56 and are attached there.
  • the Pipe segment 34 '' is guided along the outside of arm 2 and with not shown pipe holder with this connected.
  • the invention refers to a concrete placing boom for stationary and mobile concrete pumps.
  • the concrete placing boom 32 has several articulated joints A, B, C together connected, at least partially a box or tube profile having mast arms 1,2,3. He's wearing one Concrete delivery line 34, which consists of several articulated with each other connected, along the individual mast arms 1,2,3 guided and attached to these pipe segments 34 ', 34' ', 34' '' is composed.
  • To be a compact Achieving construction is at least one of the pipe segments 34 'of the concrete delivery line 34 at least in sections through the interior 48 one of a box or Pipe profile having mast arms 1 passed.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

The spreader pole has several interconnected box or tubular section arms (1,2,3) and pipe segments (34',34'',34''') guided along and fixed on the pole. At least one of the pipe segments making up the concrete conveyor line (34) is passed through the inside of one of the mast arms. The relevant pole arm has a bulkhead wall passing crosswise through the inner space and having an opening for passing through the pipe segment. A plastics guide tube or trough for holding the pipe segment is set inside the inner space of the relevant mast arm.

Description

Die Erfindung betrifft einen Betonverteilermast für stationäre und mobile Betonpumpen mit mehreren an Knickgelenken miteinander verbundenen zumindest teilweise ein Kasten- oder Rohrprofil aufweisenden Mastarmen und einer aus mehreren über Rohrbögen und Rohrdrehverbindungen gelenkig miteinander verbundenen, entlang den einzelnen Mastarmen geführten und an diesen befestigten Rohrsegmenten bestehenden Betonförderleitung.The invention relates to a concrete placing boom for stationary and mobile concrete pumps with several Articulated joints connected at least partially a box or tubular profile mast arms and one of several via pipe bends and pipe slewing rings articulated together, along guided and attached to the individual mast arms Pipe segments existing concrete delivery line.

Bei bekannten Betonverteilermasten dieser Art sind die Rohrsegmente der Betonförderleitung an der Außenseite der Mastarme im Abstand von diesen entlanggeführt. Dies erfordert einen erheblichen Platzbedarf, der einer kompakten Bauweise entgegensteht und oft konstruktive Kompromisse erfordert. Dies ist besonders bei Betonfahrmischern der Fall, bei denen der Betonverteilermast im eingeklappten Zustand auf engem Raum neben einem Mischkessel Platz finden muß.In known concrete placing booms of this type Pipe segments of the concrete delivery line on the outside the mast arms are guided at a distance from them. This requires a considerable amount of space, that of a compact Construction opposes and often constructive compromises required. This is particularly the case with concrete mixer trucks the case where the concrete placing boom in collapsed condition in a confined space next to a mixing kettle Must find space.

Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, den bekannten Betonverteilermast dahingehend zu verbessern, daß beim Zusammenklappen des Masts ein kleinerer Platzbedarf erforderlich ist.Proceeding from this, the invention is based on the object the well-known concrete placing boom improve that when collapsing the mast smaller space is required.

Zur Lösung dieser Aufgabe wird die im Patentanspruch 1 angegebene Merkmalskombination vorgeschlagen. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den abhängigen Ansprüchen.To solve this problem is the in claim 1 specified combination of features proposed. Beneficial Refinements and developments of the invention result from the dependent claims.

Die erfindungsgemäße Lösung geht von dem Gedanken aus, daß der Hohlraum in einem ein Kasten- oder Rohrprofil aufweisenden Mastarm zur Unterbringung der Betonförderleitung genutzt werden kann. Um dies zu erreichen, wird gemäß der Erfindung vorgeschlagen, daß mindestens eines der Rohrsegmente der Betonförderleitung zumindest abschnittsweise durch den Innenraum eines der ein Kasten- oder Rohrprofil aufweisenden Mastarme hindurchgeführt ist. Mit dieser Maßnahme wird neben der für das Zusammenklappen des Knickmasts vorteilhaften Platzeinsparung zusätzlich erreicht, daß der betreffende Knickarm zugleich die Funktion eines Schutzrohrs für das Rohrsegment aufweist, das ein Unfallgefahr bei infolge Verschleißes platzendem Rohrsegment vermeidet.The solution according to the invention is based on the idea that the cavity in a box or tube profile showing mast arm to accommodate the concrete delivery line can be used. To achieve this, proposed according to the invention that at least one of the pipe segments of the concrete delivery line at least in sections through the interior of one of a box or Mast tubes having a tubular profile are passed through is. This measure is in addition to that for folding of the articulated mast advantageous space saving additionally achieved that the articulated arm in question at the same time the function of a protective tube for the tube segment has an accident risk due to wear avoids bursting pipe segment.

Eine vorteilhafte Ausgestaltung der Erfindung sieht vor, daß der betreffende Mastarm mindestens eine den Innenraum quer durchsetzende aussteifende Schottwand enthält, die mit einem Durchbruch für den Durchtritt des Rohrsegments versehen ist.An advantageous embodiment of the invention provides before that the mast arm in question at least one the Interior stiffening bulkhead contains that with a breakthrough for the passage of the pipe segment is provided.

Zur Erleichterung der Montage ist es von Vorteil, wenn im Innenraum des betreffenden Mastarms ein vorzugsweise aus Kunststoff bestehendes Führungsrohr oder eine Wanne zur Aufnahme des Rohrsegments angeordnet ist.To facilitate assembly, it is advantageous if preferably in the interior of the mast arm in question plastic guide tube or tub is arranged to accommodate the pipe segment.

Häufig ist es aus konstruktiven Gründen notwendig, daß der Mastarm in zwei durch eine Kröpfung miteinander verbundene Armabschnitte unterteilt ist. Erfindungsgemäß wird in diesem Falle vorgeschlagen, daß das Rohrsegment durch einen der beiden Armabschnitte von einer Öffnung im Bereich der Kröpfung bis zum gelenkseitigen Ende dieses Armabschnitts hindurchgreift und am anderen Armabschnitt außenseitig befestigt ist. Diese Bauweise ist besonders für Betonverteilermaste für Betonfahrmischer mit Betonpumpen von Vorteil, bei denen der Mischkessel aus Platzgründen eine Kröpfung zumindest eines der Mastarme erforderlich macht und bei denen im zusammengeklappten Zustand des Betonverteilermastes nur wenig Freiraum zur Unterbringung der Betonförderleitung vorhanden ist.For design reasons it is often necessary that the mast arm in two by cranking each other connected arm sections is divided. According to the invention in this case it is proposed that the pipe segment through one of the two arm sections of one Opening in the area of the crank to the joint side Reaches through the end of this arm section and at the other Arm section is attached to the outside. This design is particularly suitable for concrete placing booms for concrete mixers with concrete pumps where the mixing tank is advantageous at least one for space reasons the mast arms required and those in the folded Condition of the concrete placing boom only a little Free space to accommodate the concrete delivery line is available.

Zur Erleichterung der Montage und der Wartung ist der den Mast durchgreifende Teil des Rohrsegments zweckmäßig einstückig ausgebildet. Erforderlichenfalls kann an dem Mastarm mindestens ein außenseitiger Wanddurchbruch zur Montage- und Wartungserleichterung vorgesehen werden.To facilitate assembly and maintenance, the expedient part of the pipe segment penetrating the mast integrally formed. If necessary, can at least one outside wall opening on the mast arm intended to facilitate assembly and maintenance will.

Die hohl ausgebildeten Mastarme eignen sich außerdem zur Unterbringung von hydraulischen und/oder elektrischen Versorgungs- und/oder Meßleitungen, wie sie beispielsweise für die Ansteuerung der Gelenkantriebe und für in den Knickgelenken angeordnete Winkelmeßsysteme erforderlich sind.The hollow mast arms are also suitable to accommodate hydraulic and / or electrical Supply and / or measuring lines, such as, for example for controlling the articulated drives and for angle measuring systems arranged in the articulated joints required are.

Im folgenden wird die Erfindung anhand eines in der Zeichnung in schematischer Weise dargestellten Ausführungsbeispiels näher erläutert. Es zeigen

Fig. 1
eine Seitenansicht einer Fahrmischerpumpe;
Fig. 2
eine Seitenansicht des Betonverteilermasts der Fahrmischerpumpe nach Fig. 1;
Fig. 3
eine Draufsicht auf den Mastarm 1 des Verteilermasts nach Fig. 2;
Fig. 4
einen Ausschnitt aus dem Mastarm 1 in gegenüber Fig. 3 vergrößerter Darstellung;
Fig. 5a und b
je einen Schnitt durch den Mastarm 1 entlang der Schnittlinie V-V der Fig. 3 für zwei konstruktive Alternativen.
The invention is explained in more detail below with reference to an exemplary embodiment shown schematically in the drawing. Show it
Fig. 1
a side view of a truck mixer pump;
Fig. 2
a side view of the concrete placing boom of the truck mixer pump of FIG. 1;
Fig. 3
a plan view of the mast arm 1 of the placing mast according to Fig. 2;
Fig. 4
a section of the mast arm 1 in an enlarged view compared to FIG. 3;
5a and b
3 a section through the mast arm 1 along the section line VV of FIG. 3 for two constructive alternatives.

Die in Fig. 1 dargestellte Fahrmischerpumpe besteht im wesentlichen aus einem vierachsigen Fahrgestell 10, einer im mittleren Bereich des Fahrgestells 10 um die Achse 12 drehbar angeordneten, mit ihrer Beschickungs- und Auslaßöffnung 14 schräg nach hinten weisenden Mischtrommel 16, einer im Bereich der Hinterachsen 18, 18' am Fahrgestell 10 angeordneten Zweizylinder-Dickstoffpumpe 20 mit Materialaufgabebehälter 22 und einem im Bereich der Vorderachsen 24,24' in der Nähe des Führerhauses 26 an einem Lagerbock 28 um eine vertikale Achse 30 drehbar gelagerten, aus drei an den Knickgelenken A,B und C gegeneinander verschwenkbaren Mastarmen 1,2,3 zusammengesetzten Betonverteilermast 32 als Träger für eine Betonförderleitung 34. Die Betonförderleitung 34 ist aus mehreren Rohrsegmenten 34',34'', 34''' zusammengesetzt, die an den gelenkseitigen Enden der Mastarme 1,2,3 über Rohrbögen 36',36'',36''' und Rohrdrehverbindungen 38 gelenkig miteinander verbunden und an den Mastarmen befestigt sind.The truck mixer pump shown in Fig. 1 consists in essentially from a four-axle chassis 10, one in the middle of the chassis 10 around Axis 12 rotatably arranged, with its loading and Extend outlet opening 14 diagonally to the rear Mixing drum 16, one in the area of the rear axles 18, 18 'arranged on the chassis 10 two-cylinder thick matter pump 20 with material feed container 22 and one in the area of the front axles 24, 24 'near the driver's cab 26 on a bearing block 28 around a vertical Axis 30 rotatably mounted, from three at the articulated joints A, B and C mast arms can be swiveled towards each other 1,2,3 composite concrete placing boom 32 as Carrier for a concrete delivery line 34. The concrete delivery line 34 is composed of several tube segments 34 ', 34' ', 34 '' 'assembled at the hinge ends the mast arms 1,2,3 over pipe bends 36 ', 36' ', 36' '' and Pipe rotary connections 38 articulated together and are attached to the mast arms.

Der erste Mastarm 1 weist ein geschlossenes kastenförmiges Profil (Fig. 5a und b) und zwei an einer Kröpfung 40 miteinander verbundene Armabschnitte 42,44 auf. Die Kröpfung 40 ist so positioniert und dimensioniert, daß der Mastarm 1 im zusammengeklappten Zustand des Verteilermasts die Mischtrommel 16 außenseitig umgreift (Fig. 3). Das Rohrsegment 34' ist in Anpassung an den Mastarm 1 ebenfalls gekröpft. Im Bereich des Armabschnitts 42 und der Kröpfung 40 ist das Rohrsegment 34 mit Rohrhaltern 46 außenseitig mit dem Mastarm 1 verbunden, während er im Bereich des Armabschnitts 44 durch den Innenraum 48 des kastenförmigen Mastarms 1 bis zum Gelenk B hindurchgeführt ist. Der durch den Armabschnitt 44 hindurchgeführte, sich zwischen den beiden Rohrkupplungen 50 erstreckende Rohrsegmentabschnitt 52 ist einstückig ausgebildet. Zur Montageerleichterung ist im Inneren des Armabschnitts 44 ein Kunststoffrohr 54' (Fig. 5a) oder eine Wanne 54'' angeordnet, die durch Durchbrüche in den Schottblechen 56 hindurchgreifen und dort befestigt sind. Im Bereich der Knickachse B ist das Rohrsegment 34' über die Rohrbögen 36''' und die Drehkupplung 38 mit dem Rohrsegment 34'' verbunden. Das Rohrsegment 34'' ist außenseitig am Arm 2 entlanggeführt und über nicht dargestellte Rohrhalter mit diesem verbunden.The first mast arm 1 has a closed box-shaped Profile (Fig. 5a and b) and two on a crank 40 interconnected arm sections 42, 44. The Crank 40 is positioned and dimensioned such that the mast arm 1 in the folded state of the distribution mast surrounds the mixing drum 16 on the outside (Fig. 3). The pipe segment 34 'is adapted to the mast arm 1 also cranked. In the area of the arm section 42 and the offset 40 is the tube segment 34 with tube holders 46 externally connected to the mast arm 1 while he in the area of the arm portion 44 through the interior 48 of the box-shaped mast arm 1 to the joint B is passed. The through the arm portion 44th passed between the two pipe couplings 50 extending tube segment section 52 is in one piece educated. To make installation easier Inside the arm portion 44, a plastic tube 54 ' (Fig. 5a) or a tub 54 '' arranged by Reach openings in the bulkhead 56 and are attached there. In the area of the bend axis B. the pipe segment 34 'over the pipe bends 36' '' and Rotary coupling 38 connected to the pipe segment 34 ''. The Pipe segment 34 '' is guided along the outside of arm 2 and with not shown pipe holder with this connected.

Zusammenfassend ist folgendes festzustellen: Die Erfindung bezieht sich auf einen Betonverteilermast für stationäre und mobile Betonpumpen. Der Betonverteilermast 32 weist mehrere an Knickgelenken A,B,C miteinander verbundene, zumindest teilweise ein Kasten- oder Rohrprofil aufweisende Mastarme 1,2,3 auf. Er trägt eine Betonförderleitung 34, die aus mehreren gelenkig miteinander verbundenen, entlang den einzelnen Mastarmen 1,2,3 geführten und an diesen befestigten Rohrsegmenten 34',34'',34''' zusammengesetzt ist. Um eine kompakte Bauweise zu erzielen, ist mindestens eines der Rohrsegmente 34' der Betonförderleitung 34 zumindest abschnittsweise durch den Innenraum 48 eines der ein Kasten- oder Rohrprofil aufweisenden Mastarme 1 hindurchgeführt.In summary, the following can be stated: The invention refers to a concrete placing boom for stationary and mobile concrete pumps. The concrete placing boom 32 has several articulated joints A, B, C together connected, at least partially a box or tube profile having mast arms 1,2,3. He's wearing one Concrete delivery line 34, which consists of several articulated with each other connected, along the individual mast arms 1,2,3 guided and attached to these pipe segments 34 ', 34' ', 34' '' is composed. To be a compact Achieving construction is at least one of the pipe segments 34 'of the concrete delivery line 34 at least in sections through the interior 48 one of a box or Pipe profile having mast arms 1 passed.

Claims (9)

Betonverteilermast für stationäre und mobile Betonpumpen mit mehreren an Knickgelenken (A,B,C) miteinander verbundenen, zumindest teilweise ein Kasten- oder Rohrprofil aufweisenden Mastarmen (1,2, 3) und einer aus mehreren, vorzugsweise über Rohrbögen (36',36'') und Drehkupplungen (38) gelenkig miteinander verbundenen, entlang den einzelnen Mastarmen (1,2,3) geführten und an diesen befestigten Rohrsegmenten (34',34'',34''') bestehenden Betonförderleitung (34), dadurch gekennzeichnet, daß mindestens eines der Rohrsegmente (34') der Betonförderleitung (34) zumindest abschnittsweise durch den Innenraum (48) einer der ein Kasten- oder Rohrprofil aufweisenden Mastarme (1) hindurchgeführt ist.Concrete placing boom for stationary and mobile concrete pumps with several mast arms (1, 3, 3) connected to one another at articulated joints (A, B, C), at least partially having a box or pipe profile, and one consisting of several, preferably via pipe bends (36 ', 36'') and rotary couplings (38) which are connected to one another in an articulated manner and which are guided along the individual mast arms (1, 2, 3) and fastened to these pipe segments (34', 34 '', 34 '''), characterized in that that at least one of the tube segments (34 ') of the concrete delivery line (34) is passed at least in sections through the interior (48) of one of the mast arms (1) having a box or tube profile. Betonverteilermast nach Anspruch 1, dadurch gekennzeichnet, daß der betreffende Mastarm (1) mindestens eine den Innenraum (48) quer durchsetzende Schottwand (56) aufweist, die einen Durchbruch für den Durchtritt des Rohrsegments (34') aufweist.Concrete placing boom according to claim 1, characterized in that the mast arm (1) in question has at least one partition wall (56) which penetrates the interior (48) and which has an opening for the passage of the pipe segment (34 '). Betonverteilermast nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß im Innenraum (48) des betreffenden Mastarms (1) ein Führungsrohr (54') oder eine Wanne (54'') zur Aufnahme des Rohrsegments (34') angeordnet ist. Concrete placing boom according to claim 1 or 2, characterized in that a guide tube (54 ') or a trough (54'') for receiving the tube segment (34') is arranged in the interior (48) of the mast arm (1) concerned. Betonverteilermast nach Anspruch 3, dadurch gekennzeichnet, daß das Führungsrohr (54') oder die Wanne (54'') aus Kunststoff besteht.Concrete placing boom according to claim 3, characterized in that the guide tube (54 ') or the trough (54'') consists of plastic. Betonverteilermast nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Mastarm (1) zwei durch eine Kröpfung (40) miteinander verbundene Armabschnitte (42,44) aufweist, und daß das Rohrsegment (34') durch den Innenraum (48) eines der beiden Armabschnitte (44) von einer Öffnung im Bereich der Kröpfung (40) aus bis zum gelenkseitigen Ende dieses Armabschnitts hindurchgreift und am anderen Armabschnitt (42) außenseitig befestigt ist.Concrete placing boom according to one of claims 1 to 4, characterized in that the mast arm (1) has two arm sections (42, 44) connected to one another by an offset (40), and in that the pipe segment (34 ') through the interior (48) of one of the two arm sections (44) extends from an opening in the region of the crank (40) to the end of this arm section on the joint side and is fastened on the outside to the other arm section (42). Betonverteilermast nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der den Mastarm (1) durchgreifende Abschnitt (52) des Rohrsegments (34') einstückig ausgebildet ist.Concrete placing boom according to one of claims 1 to 5, characterized in that the section (52) of the pipe segment (34 ') which passes through the boom arm (1) is formed in one piece. Betonverteilermast nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß durch den Innenraum (48) mindestens eines der Mastarme (1,2,3) hydraulische und/oder elektrische Versorgungs- und/oder Meßleitungen hindurchgeführt sind.Concrete placing boom according to one of claims 1 to 6, characterized in that at least one of the boom arms (1, 2, 3) hydraulic and / or electrical supply and / or measuring lines are passed through the interior (48). Betonverteilermast nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß in der Außenwand des ein Kasten- oder Rohrprofil aufweisenden Mastarms (1) eine Montage- und Wartungsöffnung angeordnet ist. Concrete placing boom according to one of claims 1 to 7, characterized in that an assembly and maintenance opening is arranged in the outer wall of the mast arm (1) having a box or tubular profile. Betonfahrmischer mit Betonpumpe gekennzeichnet durch einen Betonverteilermast (42) nach einem der Ansprüche 1 bis 8.Concrete truck mixer with concrete pump characterized by a concrete placing boom (42) according to one of claims 1 to 8.
EP97113634A 1996-10-25 1997-08-07 Concrete pump boom Expired - Lifetime EP0838563B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19644410A DE19644410A1 (en) 1996-10-25 1996-10-25 Concrete placing boom for concrete pumps
DE19644410 1996-10-25

Publications (2)

Publication Number Publication Date
EP0838563A1 true EP0838563A1 (en) 1998-04-29
EP0838563B1 EP0838563B1 (en) 2003-10-29

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EP97113634A Expired - Lifetime EP0838563B1 (en) 1996-10-25 1997-08-07 Concrete pump boom

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DE (2) DE19644410A1 (en)

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CN104220683A (en) * 2012-04-13 2014-12-17 普茨迈斯特工程有限公司 Production method for mast arm and concrete-distributing mast
WO2016023758A1 (en) * 2014-08-12 2016-02-18 Putzmeister Engineering Gmbh Distribution boom for stationary or mobile viscous material pumps
WO2016083502A1 (en) * 2014-11-28 2016-06-02 Putzmeister Engineering Gmbh Boom for a working machine and method for producing same
EP3622132B1 (en) * 2017-05-12 2021-03-24 Putzmeister Engineering GmbH Distribution boom for mobile concrete pumps comprising joints for adjacent arms, and mobile concrete pump
CN113882676A (en) * 2021-11-25 2022-01-04 广东博智林机器人有限公司 Material conveying device and operation mechanism
WO2022227263A1 (en) * 2021-04-28 2022-11-03 三一汽车制造有限公司 Bending boom, boom device, and operating machine

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CN104220683B (en) * 2012-04-13 2016-08-24 普茨迈斯特工程有限公司 The manufacture method of lever arm and concrete placing boom
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DE59710917D1 (en) 2003-12-04
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