EP3622132B1 - Verteilermast für mobile betonpumpen mit gelenken für nebeneinanderliegende arme und mobile betonpumpe - Google Patents

Verteilermast für mobile betonpumpen mit gelenken für nebeneinanderliegende arme und mobile betonpumpe Download PDF

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Publication number
EP3622132B1
EP3622132B1 EP18725449.5A EP18725449A EP3622132B1 EP 3622132 B1 EP3622132 B1 EP 3622132B1 EP 18725449 A EP18725449 A EP 18725449A EP 3622132 B1 EP3622132 B1 EP 3622132B1
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EP
European Patent Office
Prior art keywords
boom
joint
arm
arms
distribution
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.)
Active
Application number
EP18725449.5A
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German (de)
English (en)
French (fr)
Other versions
EP3622132A1 (de
Inventor
Ansgar MÜLLER
Thomas GREULE
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 Engineering GmbH
Original Assignee
Putzmeister Engineering GmbH
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.)
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Publication date
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Application filed by Putzmeister Engineering GmbH filed Critical Putzmeister Engineering GmbH
Publication of EP3622132A1 publication Critical patent/EP3622132A1/de
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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
    • E04G21/0418—Devices for both conveying and distributing with distribution hose
    • E04G21/0445—Devices for both conveying and distributing with distribution hose with booms
    • 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
    • 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
    • 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
    • E04G2021/049—Devices for both conveying and distributing concrete mixing nozzles specially adapted for conveying devices

Definitions

  • the invention relates to a placing boom for a concrete pump with at least two boom arms and a mobile concrete pump with a corresponding placing boom.
  • Mobile concrete pumps regularly have a boom arranged on a mobile substructure with a delivery line running along it, through which flowable concrete can be pumped.
  • the boom comprises several boom arms which can be pivoted relative to one another about pivot axes in each case transversely to the longitudinal direction of the boom arms.
  • the specified maximum height can, for example, correspond to the usual clearance heights in road traffic, so that the mobile concrete pump can also move under bridges and through road tunnels.
  • the object of the present invention is to create a placing boom for a concrete pump and a mobile concrete pump which is improved over the prior art.
  • the invention relates to a placing boom for a concrete pump comprising at least inter alia a first and a second boom arm, the first and second boom arms being connected to one another via a joint and being pivotable about a pivot axis relative to one another via the joint, a concrete delivery line along the boom arms is provided, and wherein the joint connects the first and the second mast arm offset to one another in the axial direction of the pivot axis in such a way that the respective supporting structure of the two mast arms intersect a separation plane running between the first and second mast arms perpendicular to the pivot axis only in the joint, with a hydraulic cylinder is arranged on one mast arm, which is connected to the other mast arm via one or more coupling rods in such a way that the hydraulic cylinder a relative pivoting movement of the two mast arms to one another about the pivot axis of the joint can be effected.
  • the invention further relates to a mobile concrete pump with a placing boom according to the invention.
  • load-bearing structure of a mast arm denotes that part of the structure of a mast arm which essentially absorbs the loads acting on the mast arm when the placing boom is used properly.
  • the supporting structure of a mast arm is designed as a hollow profile.
  • the load-bearing structure of a mast arm does not include, in particular, add-on parts or extensions of the load-bearing structure that absorb no or only insignificant forces in the event of loads acting on the mast arm.
  • a concrete delivery line guided along a mast arm can be guided at least in sections on the outside of the mast arm and / or run in its interior.
  • the supporting structures of the both mast arms do not interfere with each other.
  • the load-bearing structures of the mast arms themselves do not limit the relative pivoting movement to one another. In principle, however, there are restrictions on the pivoting movement that result from the joint or the kinematic chain for controlling the pivoting movement.
  • a hydraulic cylinder is used as a kinematic chain for pivoting the mast arms relative to one another arranged on one of the mast arms, which is connected to the other mast arm and the lateral projection via one or more coupling rods in such a way that the hydraulic cylinder can cause the two mast arms to pivot relative to one another about the pivot axis of the joint. It is of course also possible that the hydraulic cylinder is supported by a second hydraulic cylinder arranged parallel to it, wherein the two hydraulic cylinders can each be dimensioned smaller than a single hydraulic cylinder with a comparable lifting force.
  • the parts of the mast arm that do not belong to the supporting structure can be designed or arranged in such a way that, although they intersect the parting plane, they do not imply any (additional) restriction on the pivoting movement.
  • the two mast arms as a whole - that is, not just their supporting structures - do not intersect a parting plane running between the first and the second mast arm perpendicular to the pivot axis, apart from the joint.
  • the load-bearing structures of the two boom arms lie next to one another in the horizontal direction due to the previously described parting plane, but can easily be arranged so as to overlap in the vertical direction.
  • a placing boom according to the invention can be put together more compactly. Starting from a comparable boom with a cranked boom arm, the installation space required for the collapsed state can therefore be reduced with a placing boom according to the invention while maintaining the same overall length.
  • an additional boom arm can be provided, whereby the Can increase the total length of the placing boom compared to a comparable boom with a cranked boom according to the prior art.
  • a cranking of an extension arm which is customary in the prior art, can be completely dispensed with.
  • all of the boom arms of the placing boom according to the invention are expected to have any special torsional loads caused by a crank, all of the boom arms can be designed with a view to the bending loads primarily acting on them.
  • the load-bearing structure of a non-cranked mast arm can be designed with a comparable rigidity and load-bearing capacity with a smaller cross-section and therefore lighter.
  • the joint has a lateral projection arranged on the second mast arm, which protrudes beyond the first mast arm, and the two mast arms are pivotably connected to one another via this lateral projection.
  • the lateral projection accordingly protrudes beyond the plane of separation between the two mast arms, while the respective supporting structure of the mast arms continues to intersect the plane of separation only in the joint.
  • the final connection between the two mast arms or between the first mast arm and the projection of the second mast arm can be made comparable to the prior art, in which the extension arms in the area of the joint lie in a common plane perpendicular to the pivot axis.
  • the hinge pin can be made shorter and has to absorb lower loads the design of the joint comprising a projection on the second mast arm usually has a weight advantage.
  • the joint has at least one hollow joint bolt arranged axially to the pivot axis for the passage of fresh concrete from a concrete delivery line on the first mast arm to a concrete delivery line on the second mast arm.
  • the fresh concrete is passed through directly along the pivot axis, there is no need for an expensive coupling or a flexible hose line, which is unfavorable for pumping concrete, for transferring fresh concrete between the concrete delivery lines of the two boom arms.
  • the joint also preferably comprises two joint pins arranged axially along the pivot axis. If two hinge pins - or in other words a split hinge pin - are provided, it is sufficient if only the hinge pin closer to the parting plane is a hollow hinge pin. The other hinge pin, on the other hand, does not necessarily have to be made hollow. The passage of fresh concrete is then only provided through the hinge pin which is closer to the parting plane.
  • the hydraulic cylinder is arranged on the first mast arm. Since the coupling rods of the kinematic chain engage a projection arranged on the second mast arm, the joint kinematics can be designed to act exclusively perpendicular to the pivot axis. As a result, lateral bending loads on the kinematic chain for pivoting the mast arms can be kept low.
  • the joint comprises two joint pins arranged axially along the pivot axis, lateral bending loads can occur the kinematic chain can be further reduced if a coupling rod connected directly to the other (preferably the second) mast arm or the projection arranged on the second mast arm is arranged between the two hinge pins.
  • the concrete delivery line of one (preferably the first) extension arm runs in the area of the kinematic chain between the hydraulic cylinder and the parting plane. This ensures that the concrete delivery line cannot collide with the hydraulic cylinder, as a result of which the pivoting range of the joint may be restricted or coupling rods that are not optimally adapted to the force transmission may be required.
  • the at least one hollow hinge pin preferably has a free inner diameter of 80 to 200 mm.
  • a corresponding inside diameter is sufficient for the passage of fresh concrete or the passage of a conveyor line section designed for this purpose.
  • an exchangeable conveying line section is arranged in the at least one hollow hinge pin. Since the fresh concrete is not guided directly along the inner wall of the hollow hinge pin, wear and tear on the hinge pin, which would require an expensive replacement, can be avoided. Rather, the conveyor line section running in the hinge pin can be exchanged if necessary.
  • the conveying line section is preferably rotatably coupled to the conveying lines of the mast arms.
  • the joint preferably has a maximum pivot angle - that is, the angle between the two end positions of the joint - of more than 150 °, more preferably of more than 175 °.
  • the distribution mast comprises more than two mast arms
  • the distribution mast is preferably designed as an articulated arm. All the mast arms of the distribution mast are then connected to one another via joints, so that two adjacent mast arms can be pivoted relative to one another about a common pivot axis.
  • Figure 1a-c is a mobile concrete pump 1 with placing boom 2 in plan view ( Figure 1b ) and the two associated side views ( Figures 1a, c ) shown schematically.
  • the mobile concrete pump 1 is a truck-mounted concrete pump in which the placing boom 2 is rotatably attached to a mobile substructure 3.
  • the placing boom 2 can be opened and for this purpose comprises several boom arms 4 that can be pivoted relative to one another about joints 5.
  • a concrete delivery line is provided along the boom arms 4 through which fresh concrete can be conveyed with the aid of a concrete pump arranged in the substructure 3.
  • the placing boom 2 comprises a total of five boom arms 4.1, 4'.2, 4 ".3, 4.4, 4.5, which are folded in RZ - as in Figure 1 shown - can be folded up, the lowest mast arm 4.1 being pivotably attached to the rotating head 6.
  • the supporting structures of the lower two mast arms 4.1, 4'.2 lie completely next to the supporting structures of the upper three mast arms 4 ′′ .3, 4.4, 4.5 (see FIG Figure 1b ), whereby according to their sequence each adjacent mast arms 4 are pivotably connected to one another via a joint 5, that is mast arm 4.1 with mast arm 4'.2, 4'.2 with 4 ".3, etc.
  • the mast arms 4 lie between the Pivot legs 11 which, together with support legs (not shown) in the front area of the substructure 3, ensure that the mobile concrete pump 1 is more secure when the placing boom 2 is unfolded.
  • FIG Figure 2a The position of the respective supporting structure of the individual mast arms 4 in the folded state is also shown in FIG Figure 2a clearly, in which a schematic sectional view through the concrete pump 1 according to Figure 1 is shown.
  • a dividing plane 90 which is not supported by any supporting structure of the mast arms 4 and in particular not is cut from the supporting structure of the mast arms 4'.2 and 4 ".3.
  • FIG Figure 2a The cuboid installation space that is taken up by the mast arms 4 of the mast arm 2 according to the invention in the folded state is shown in FIG Figure 2a indicated by the dash-dotted line 91.
  • FIG Figure 2b the installation space 91 of a boom 100 according to the prior art is shown.
  • the boom 100 also has five boom arms 101, of which it can be assumed that they have identical lengths to the mast arms 4, so that the boom 100 basically has the same maximum height as that in FIG Figures 1 and 2a can achieve shown placing boom.
  • the middle boom 101 ' is cranked so that the two outer boom arms 101 come to lie in a plane next to the lower two boom arms 101 in the folded state. Due to the cranking of the central cantilever arm 101 ′ provided in the prior art, however, a comparatively large installation space 91 is required, due to the not inconsiderable unused areas 102 within the installation space.
  • a placing boom 2 according to the invention can save a considerable amount of installation space 91.
  • This saving in installation space then also offers the possibility of providing additional mast arms 4, if necessary, without the installation space 91 increasing in an inadmissible manner, in particular with regard to the total height of the concrete pump 1.
  • a corresponding example is in Figure 2c outlined, in which in comparison to the embodiment according to Figure 2a or according to the state of the art Figure 2b an additional sixth mast arm 4.6 is provided.
  • the invention provides that the load-bearing structure of two adjacent mast arms - in the illustrated embodiment those of the mast arms 4'.2 and 4 ".3 - are connected to one another via a joint in such a way that between a parting plane 90 can be found for them, which runs perpendicular to the common pivot axis 92 and which is not intersected by the respective supporting structure of the two mast arms 4'.2 and 4 ".3. That none of the other boom arms 4.1, 4.4, 4.5 and possibly 4.6 intersects the separation plane 90 either (cf. Figures 2a and c ), is advantageous but not absolutely necessary.
  • FIGs 3 to 5 different variants of joints 5 are shown, how the mast arms 4'.2 and 4 ".3 can be pivotably connected to one another so that the above requirements are met.
  • the mast arm 4'.2 is also generalized as the first mast arm 4 'and the mast arm 4 ".3 is referred to as the second mast arm 4" in order to make it clear that the joints 4 shown do not necessarily (only) have to or can be arranged between the mast arms 4'.2, 4 ".3.
  • the two mast arms 4 and in particular their respective supporting structure run parallel to the parting plane 90 and do not intersect it.
  • a joint pin 7 extending axially to the pivot axis 92 is arranged, via which the two mast arms 4 are pivotably connected to one another.
  • the hinge pin 7 extends through both mast arms (see sectional view Figure 3c ) and is rotatably mounted in the first mast arm 4 ', while it is rotationally fixed with respect to the second mast arm 4 ".
  • a kinematic chain 20 comprising a hydraulic pressure cylinder 21, coupling rod 22, articulation lever 23 and guide rod 24 is provided for the pivoting movement.
  • the articulation lever 23 is non-rotatably attached to the hinge pin 7 so that a pivoting movement of the articulation lever 23 relative to the first mast arm 4 'results in a pivoting movement of the second mast arm 4 ′′ Articulation lever 23 are applied so that the desired pivoting movement is effected.
  • the hinge pin 7 is hollow with an inner diameter of 150 mm for the passage of fresh concrete, with an exchangeable conveyor line section 8 being arranged through the hinge pin 7, via which a concrete conveyor line 9 'on the first mast arm 4' with a concrete conveyor pipe 9 "on the second mast arm 4 "is connected.
  • the conveying line section 8 is rotatably attached with respect to the concrete conveying lines 9 ', 9 ".
  • the joint variant in Figure 4 comprises a projection 10 arranged on the second mast arm 4 ′′, which protrudes beyond the first mast arm 4 ′ in the area of the joint 5. Away from the joint 5, the dividing plane 90 continues through the two mast arms 4 ′, 4 ′′ and thus in particular through their load-bearing structure not cut.
  • the two mast arms 4 ', 4 are connected to one another via the projection 10 by two hinge pins 7 so that they can pivot about the pivot axis 92.
  • Both hinge pins 7 are hollow so that an exchangeable conveyor line section 8 for connecting the concrete delivery lines 9', 9" to both mast arms 4 ', 4 "can be passed through both hinge pins.
  • the kinematic chain 20 for the pivoting movement of the two mast arms 4 ′, 4 ′′ with respect to one another is arranged within the first mast arm 4 ′ and comprises - as in particular in the sectional view Figure 4d - a hydraulic pressure cylinder 21, coupling rod 22 and guide rod 24.
  • the pressure cylinder 21 and guide rod 24 are rotatably attached to the first mast arm 4 ', while the coupling rod 22 engages the projection 10.
  • force can be applied to the projection 10 in order to bring about a pivoting movement of the second mast arm 4 ′′ with respect to the first mast arm 4 ′.
  • the projection 10 and thus the second mast arm 4 ′′ are mounted pivotably with respect to the first mast arm 4 ′ via two hollow hinge pins 7 arranged along the pivot axis 92.
  • the kinematic chain 20 is arranged completely in the area of the first mast arm 4 'and the projection 10 and comprises, in addition to two parallel coupling rods 22 and a guide rod 24, a hydraulic pulling cylinder 21'.
  • the pull cylinder 21 ' is connected to the projection 10 via the two coupling rods 22, the connection point between the pull cylinder 21' and coupling rods 22 being guided through the guide rod 24.
  • both hinge pins 7 are hollow in this embodiment, the concrete delivery line 9 'of the first mast arm 4' is placed in the area of the joint 5 and in particular the kinematic chain 20 between the hydraulic cylinder 21 'and the parting plane 90, so that the delivery line section 8 to Fresh concrete is passed through only through the hinge pin 7 arranged closer to the parting plane 90. This ensures that the concrete delivery line 9 ′ does not obstruct the hydraulic pulling cylinder 21 ′ or the kinematic chain 20.
  • All illustrated exemplary embodiments and joint variants have a maximum pivot angle of 180 °.

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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)
EP18725449.5A 2017-05-12 2018-05-09 Verteilermast für mobile betonpumpen mit gelenken für nebeneinanderliegende arme und mobile betonpumpe Active EP3622132B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017208032.9A DE102017208032A1 (de) 2017-05-12 2017-05-12 Verteilermast für mobile Betonpumpen mit Gelenken für nebeneinanderliegende Arme und mobile Betonpumpe
PCT/EP2018/062108 WO2018206702A1 (de) 2017-05-12 2018-05-09 Verteilermast für mobile betonpumpen mit gelenken für nebeneinanderliegende arme und mobile betonpumpe

Publications (2)

Publication Number Publication Date
EP3622132A1 EP3622132A1 (de) 2020-03-18
EP3622132B1 true EP3622132B1 (de) 2021-03-24

Family

ID=62196541

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18725449.5A Active EP3622132B1 (de) 2017-05-12 2018-05-09 Verteilermast für mobile betonpumpen mit gelenken für nebeneinanderliegende arme und mobile betonpumpe

Country Status (6)

Country Link
US (1) US12018498B2 (ko)
EP (1) EP3622132B1 (ko)
KR (1) KR102316140B1 (ko)
CN (1) CN110621832B (ko)
DE (1) DE102017208032A1 (ko)
WO (1) WO2018206702A1 (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017208032A1 (de) 2017-05-12 2018-11-15 Putzmeister Engineering Gmbh Verteilermast für mobile Betonpumpen mit Gelenken für nebeneinanderliegende Arme und mobile Betonpumpe
DE202021102541U1 (de) 2021-05-11 2022-08-12 Liebherr-Mischtechnik Gmbh Autobetonpumpe mit exzentrisch am Mastbock angelenktem Verteilermast

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037571B1 (de) 1980-04-05 1986-06-11 Friedrich Wilh. Schwing GmbH Verteilermast für eine Betonpumpe
EP0838563A1 (de) * 1996-10-25 1998-04-29 PUTZMEISTER Aktiengesellschaft Betonverteilermast für Betonpumpen
DE202004003077U1 (de) 2004-02-13 2004-05-19 Putzmeister Ag Fahrbare Betonpumpe
US6808025B2 (en) 1999-09-10 2004-10-26 Schwing America, Inc. Fire-fighting system having improved flow
US7055613B1 (en) 2003-03-12 2006-06-06 Schwing America, Inc. Self leveling boom system with rotatable working assembly
DE102013218383A1 (de) 2013-09-13 2015-03-19 Putzmeister Engineering Gmbh Knickmast, insbesondere Betonverteilermast
EP3622132A1 (de) 2017-05-12 2020-03-18 Putzmeister Engineering GmbH Verteilermast für mobile betonpumpen mit gelenken für nebeneinanderliegende arme und mobile betonpumpe

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DE3409474C2 (de) * 1984-03-15 1986-11-27 Maschinenfabrik Walter Scheele GmbH & Co KG, 4750 Unna-Massen Zusammenfaltbare Betonverteilereinrichtung
US5045217A (en) * 1990-01-26 1991-09-03 Ronan Charles B Apparatus for cleaning an oil spill off of a beach
JPH078730Y2 (ja) 1991-05-21 1995-03-06 株式会社新潟鉄工所 コンクリートポンプの屈折ブーム装置の関節機構
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FI113623B (fi) * 2002-06-03 2004-05-31 Bronto Skylift Oy Ab Järjestely palonsammutukseen
DE102004007509A1 (de) * 2004-02-13 2005-09-01 Putzmeister Ag Autobetonpumpe mit einer fahrgestellfesten Mastauflageeinheit für einen Verteilermast
KR100602503B1 (ko) 2004-10-13 2006-07-19 이병렬 콘크리트 플레이싱 붐 장치
AT505111B1 (de) * 2007-04-12 2009-05-15 Rosenbauer Int Ag Einsatzvorrichtung zur brandbekämpfung
CN202214988U (zh) * 2011-08-25 2012-05-09 中联重科股份有限公司 混凝土输送管的定位缓冲装置及具有该装置的混凝土泵车
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037571B1 (de) 1980-04-05 1986-06-11 Friedrich Wilh. Schwing GmbH Verteilermast für eine Betonpumpe
EP0838563A1 (de) * 1996-10-25 1998-04-29 PUTZMEISTER Aktiengesellschaft Betonverteilermast für Betonpumpen
US6808025B2 (en) 1999-09-10 2004-10-26 Schwing America, Inc. Fire-fighting system having improved flow
US7055613B1 (en) 2003-03-12 2006-06-06 Schwing America, Inc. Self leveling boom system with rotatable working assembly
DE202004003077U1 (de) 2004-02-13 2004-05-19 Putzmeister Ag Fahrbare Betonpumpe
DE102013218383A1 (de) 2013-09-13 2015-03-19 Putzmeister Engineering Gmbh Knickmast, insbesondere Betonverteilermast
EP3622132A1 (de) 2017-05-12 2020-03-18 Putzmeister Engineering GmbH Verteilermast für mobile betonpumpen mit gelenken für nebeneinanderliegende arme und mobile betonpumpe

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ANONYMOUS: "Putzmeister AutoBetonpumpe M58-8 kühlt in Fukushima", TECHNICAL REPORT, 24 March 2011 (2011-03-24), pages 1 - 6, XP055907201
ANONYMOUS1 3: "Werkfeuherwehrfahrzeuge GMB 34", TECHNIK, 1 January 1993 (1993-01-01), pages 1 - 3, XP055907194, Retrieved from the Internet <URL:www.truckenmueller.de> [retrieved on 20220330]

Also Published As

Publication number Publication date
US20200217093A1 (en) 2020-07-09
EP3622132A1 (de) 2020-03-18
CN110621832A (zh) 2019-12-27
KR20200006068A (ko) 2020-01-17
KR102316140B1 (ko) 2021-10-22
CN110621832B (zh) 2022-02-25
US12018498B2 (en) 2024-06-25
WO2018206702A1 (de) 2018-11-15
DE102017208032A1 (de) 2018-11-15

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