EP1951972B1 - Mat articule pour installation de transport de matieres denses - Google Patents

Mat articule pour installation de transport de matieres denses Download PDF

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Publication number
EP1951972B1
EP1951972B1 EP06818647A EP06818647A EP1951972B1 EP 1951972 B1 EP1951972 B1 EP 1951972B1 EP 06818647 A EP06818647 A EP 06818647A EP 06818647 A EP06818647 A EP 06818647A EP 1951972 B1 EP1951972 B1 EP 1951972B1
Authority
EP
European Patent Office
Prior art keywords
mast
articulated
mast section
section
sections
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.)
Not-in-force
Application number
EP06818647A
Other languages
German (de)
English (en)
Other versions
EP1951972A1 (fr
Inventor
Siegfried TRÜMPER
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.)
Friedrich Wilhelm Schwing GmbH
Original Assignee
Friedrich Wilhelm Schwing 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.)
Filing date
Publication date
Application filed by Friedrich Wilhelm Schwing GmbH filed Critical Friedrich Wilhelm Schwing GmbH
Publication of EP1951972A1 publication Critical patent/EP1951972A1/fr
Application granted granted Critical
Publication of EP1951972B1 publication Critical patent/EP1951972B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/8807—Articulated or swinging flow conduit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32114—Articulated members including static joint
    • Y10T403/32213—Articulate joint is a swivel

Definitions

  • the present invention relates to a articulated mast comprising a plurality of pivotally interconnected mast sections, according to the preamble of claim 1.
  • Such articulated mast is already out of the document JP-A-2225146 known.
  • conveyor systems are used to overcome height differences, in which the thick material to be conveyed is conveyed by a delivery line or a piping system to the desired application point.
  • the delivery pressure or delivery volume flow is generated here by a slurry pump.
  • a common design principle of such conveyors is the combination of the piping system with a buckling and / or telescopic mast, which is mounted for example on a truck.
  • a conveyor system but also be constructed stationary or designed as manipulators. In the event that such a conveyor system is mounted on a truck, this is initially aligned horizontally at the site and secured against tipping.
  • the sludge pump then conveys the externally provided thick material through a piping system, which is arranged along the mast sections, to the desired discharge point, at the thick matter, for example, by a trunk-like tube extension emerges from the piping system.
  • the surmountable height differences are considerable and can be 50 m and more.
  • conveyors and horizontal distances can be overcome, for example. In rough or inaccessible terrain.
  • the individual mast sections of the articulated mast are typically connected to each other by means of pivot bearings or pivot joints.
  • the actuating forces are applied in a known manner, for example by hydraulic cylinders, wherein the hydraulic cylinder is arranged between two adjacent by means of the pivot joint mast sections connected.
  • the extension and retraction of the piston rod leads to a pivoting movement of a mast section relative to the other, at this time usually fixed-position mast section.
  • the entire articulated mast or mast structure is attached to a so-called mast block and rotatably mounted on this about a vertical axis.
  • the mast section arranged on the mast block is typically referred to as the first mast section, and the following mast arm sections are counted consecutively.
  • Most often articulated masts have two, three or four individual mast sections and are accordingly referred to as two-, three- or four-member articulated masts.
  • the object of the invention is to reduce the resulting shear forces and bending moments on a articulated mast to keep the design effort low.
  • the task solution should also bring economic advantages over the prior art.
  • the mast section to be guided Due to the inclination of the swivel joint axis with which the mast section to be guided is mounted with its one end on the immediately preceding mast section, it is achieved that this mast section is led away laterally in the resting or transport position of the articulated mast from the preceding articulated mast, ie at the connecting one Swivel joint spreads.
  • the two longitudinal axes of the respective mast sections intersect approximately in the pivot joint and include a spread angle ⁇ . If the mast section is swiveled out of its rest or transport position into a working position, these are directed extending in a vertical reference plane extending substantially perpendicular to the first mast section.
  • the inclination of the swivel joint axis can be detected by means of an inclination angle ⁇ , this angle being determined relative to a vertical line of the longitudinal axis of a preceding mast section, typically to that of the first mast section attached to the mast trestle.
  • the skew angle can be detected to simplify this in a horizontal plane.
  • the skew angle ⁇ should not be greater than 22.5 °, preferably not greater than 15 °, more preferably not greater than 10 ° and particularly preferably not greater than 8 °, otherwise the resulting spread angle ⁇ and thus the torsional moments occurring (or. Shear forces) are too large.
  • the skew angle ⁇ of the tilted pivot axis can advantageously be determined in a horizontal plane occupying a vertical position to the vertical reference plane. In this case, only the flat share, ie recorded the angular projection of the inclination in the horizontal plane, in which any inclination shares are not taken into account.
  • the articulated mast comprises more than two mast sections, it is advantageous to use a splayed, i.e. laterally led away mast section subsequent third mast section, also with an inclined pivot axis store, so that the splayed and mounted by means of the pivot joint (with inclined swivel joint axis) mast section in the unfolded working position of the articulated mast are aligned substantially in the vertical reference plane, but in the folded-rest or transport position of the subsequent mast section is arranged substantially parallel to the mast section preceding the splayed mast section.
  • the skew angles ⁇ and ⁇ ' have approximately the same angle values. This reduces the manufacturing effort when setting the joint holes, but also facilitates the previous kinematic calculations. Furthermore, this ensures that the mast section following the splayed mast section in the retracted rest or transport position is arranged essentially parallel to the mast section preceding the splayed mast section.
  • the articulated mast comprises more than two mast sections, for example four mast sections
  • the mast section spread apart in the rest position, counted from the mast mounting on the mast block is the second or third mast section.
  • the first and second mast sections are then arranged one above the other in the resting or transport position, while the two following mast sections are arranged laterally offset, whereby an advantageous weight distribution is achieved in the rest position.
  • the longitudinal axis of the splayed away laterally guided mast section with the longitudinal axis of the preceding mast section forms a spread angle ⁇ , which is also simplistic defined as a plane angle in a horizontal plane.
  • the spread angle ⁇ has approximately twice the angular value of the skew angle ⁇ of the tilted pivot axis, i.
  • the mathematical relations apply: ⁇ ⁇ 2 ⁇ ⁇ or ⁇ ⁇ / 2.
  • the two angles of spread ⁇ and ⁇ ' i. the angles between the longitudinal axes of the splayed and its preceding mast section and between the longitudinal axes of the splayed and its subsequent mast section, approximately the same angle value.
  • both spread angles ⁇ and ⁇ 'to have different angle values.
  • the articulated mast can already be optimized in the construction in view of the later expected applications such that the maximum possible pivot angle ⁇ between two adjacent mast sections significantly less than 180 °, for example, only 90 °, or significantly more than 180 °, for example 220 °.
  • a respective respective pivot end position of the individual mast sections can be determined constructively, for example by stops in the pivot joints or by using hydraulic cylinders with corresponding stroke lengths. This can reduce weight and costs.
  • the ideal state of joint alignment of the individual pole sections must be by these are aligned within the vertical reference plane to be matched to this expected use case.
  • the mast sections of a articulated mast regardless of the individually maximum possible pivoting angles, when unfolding into a working position must adopt an aligned position in which they are aligned within the vertical reference plane.
  • FIG. 1 shows an example of a prior art designated 1 articulated mast or mast assembly in working position, which is pivotally mounted on a mast block 2, wherein the mast 2 can typically rotate about a vertical axis (z-direction).
  • the girder 2 can be mounted, for example, on a truck, not shown, a concrete truck, or even be mounted on a stationary system.
  • the articulated mast 1 sets composed of individual mast sections or mast arms 4 to 7 arranged one behind the other.
  • the illustrated articulated mast 1 is a four-membered mast structure.
  • a pivot joint 8 connects two adjacent mast sections.
  • the four-membered mast structure shown therefore comprises three pivot joints 8, plus a fourth pivot joint 8a via which the mast assembly itself is articulated on the mast block 2.
  • the other components such as the concrete conveyor line and its attachment means or the hydraulic swing cylinder and their connecting lines and the like. Not shown.
  • the third mast section 6 has a cranking designated by 9, by which the rear part 61 of the third mast section and the subsequent fourth mast section 7 are laterally offset by an amount d.
  • a cranking designated by 9 By the crank 9 come now when folding the articulated mast 1 from its working position in the rest or transport position, the individual mast sections partially side by side lying in the end position and it can therefore be achieved a largely compact Einfaltwolf due to the crank.
  • the articulated mast 1 is transferred to its transport or rest position, in which the fourth mast section 7 under the third mast section 6, the third mast section. 6 on the second mast section 5 and the second mast section 5 under the first mast section 4 is folded.
  • the second mast section 5 and the third mast section 6 are thus arranged below the first mast section 4, wherein the lowermost third mast section 6 emerges laterally from the stack at its offset 9 and the fourth mast section 7 rests on its offset rear mast section 61.
  • the goal is the reduction of stacking height, on the other hand an optimization with regard to the center of gravity.
  • FIG. 2 shows the possible embodiment of a pivot joint 8 in a perspective view, by means of which two adjacent mast sections, here by way of example denoted by A and B, are pivotally connected to each other.
  • the mast section A has an end bifurcation 10, in which the rod-like end piece of the adjacent mast section B is accommodated.
  • the lateral inner surfaces of the Endgabelung 10 serve here as a guide to prevent tilting against the pivoting direction.
  • the fixation of the two connected mast sections A and B by a hinge pin or pivot pin 11 (see. FIG. 3 ), which is disposed within a hinge socket or bore 15, from the in FIG. 2 only the joint eye 12 is visible.
  • the two interconnected exemplary mast sections A and B can perform a pivoting movement about a pivot axis 13.
  • the pivot axis 13 is identical to the center line of the hinge pin 11 and the center line of the hinge bush 15 and perpendicular to the common center line 14.
  • the current position of the two mast sections A and B to each other can be described with a pivot angle ⁇ .
  • FIG. 3 shows the articulated mast joint of FIG. 2 viewed in partial section from a vertical direction (from above against the z-direction according to FIG. 1 ).
  • the hinge pin 11 for both mast sections A and B is within a hinge bushing or bore 15 is arranged and secured in a known manner.
  • the tail of the mounted mast section B is aligned and guided transversely to the pivot direction, so that the two mast sections A and B are always aligned along a common longitudinal axis 14 regardless of a current pivot angle.
  • the pivot axis 13 and the common longitudinal axis 14 are always at right angles to each other.
  • FIG. 4 shows the pivot 8 of the FIG. 2 and 3 in a side view, ie according to FIG. 1 viewed from a horizontal direction.
  • the two pivotally interconnected mast sections A and B take here a pivot angle ⁇ of 180 ° to each other, whereby the respective mast sections are maximally spaced from each other.
  • the maximum swing angle is often less or more than 180 °.
  • the maximum swing angle can be determined by design measures, for example. By means of end stops in the pivot joint or by the maximum stroke length of the actuating hydraulic cylinder.
  • FIG. 5 shows the embodiment of the invention with a pivot joint 81 with inclined pivot axis 131.
  • the pivot angle ⁇ is approximately 180 °, wherein the two mast sections A and B are aligned in this position as shown in Figure 5 along a common longitudinal axis 14.
  • the hinge hole 151 is here designed so that its center line corresponding to the pivot axis 131, a non-perpendicular angle to the common longitudinal axis 14 occupies.
  • FIG. 6 schematically shows in a perspective view of an unfolded articulated mast according to FIG. 1 with a total of four mast sections 4 to 7. Viewed from a vertical direction (counter to the z-axis of the space coordinate system), all four mast sections 4 to 7 are arranged in alignment along a common longitudinal axis 14, as in FIG Figure 7a shown. Perpendicular to this common longitudinal axis 14, but at least perpendicular to the longitudinal axis of the first mast section 4, a vertical plane can be spanned, which can be referred to as a vertical reference plane 16. In the example shown the FIG. 6 the vertical reference plane runs only at random along the y-axis of the space coordinate system.
  • a articulated mast 1 which comprises a swivel joint 81 with an inclined swivel joint axis 131 (according to the example of FIGS FIG. 5 ), pivoted about this inclined pivot axis 131 pivoted, the exemplary mast section B corresponding bucking mast section moves obliquely to the vertical reference plane 16, wherein the skew continuously changes during the pivoting movement. Only in a predetermined position position, which can be described for example by the pivot angle ⁇ to the previous mast section, these two mast sections are within the vertical reference plane 16, ie in an ideal aligned working position.
  • the articulated mast section When folding the articulated mast from its working into its resting or transport position, the articulated mast section pivoted about the inclined pivot axis 131, corresponding to the exemplary mast section B, spreads in an angle of spread ⁇ from the preceding mast section, ie is guided away laterally therefrom.
  • the mast section B corresponding buckling mast section substantially elongated, that can be formed without cranking, thereby eliminating the disadvantages associated with the cranking.
  • the mast sections can be made correspondingly less rigid, which reduces weight, manufacturing costs and costs.
  • FIGS. 7a and 7b illustrate the example of a four-member articulated mast 1, which position the third, in this case not cranked mast section 6 in the working position ( Figure 7a ) and in the resting or transport position ( FIG. 7b ) occupies.
  • the third mast section 6 is aligned with the preceding mast sections 4 and 5 along a common longitudinal axis 14 due to the inclined pivot axis 131, and thus also within the vertical reference plane 16 (see. FIG. 6 ).
  • the same mast section 6 is due to the inclined pivot axis 131 of its preceding mast section 5 in a spread angle ⁇ . As a result, this is guided past the preceding mast section, taken exactly away from this.
  • the inclination of the pivot axis 131 thus avoids the disadvantages associated with the crank 9 disadvantages. This saves material and weight and reduces manufacturing costs.
  • the Figure 7a further clarifies the definition of the plane inclination angle ⁇ and ⁇ ', the oblique pivot axes 131 occupy to the perpendicular of a common longitudinal axis 14, wherein the common longitudinal axis 14 corresponds to at least one extension of the longitudinal axis of the first mast section (4).
  • the skew angles ⁇ and ⁇ ' are determined for simplicity in a horizontal plane, this horizontal plane extending by definition perpendicular to the vertical reference plane 16.
  • the pivot axes 13 of a conventional pivot joint 8, according to the embodiment of the FIGS. 2 to 4 also correspond to the vertical of the common longitudinal axis 14.
  • the skew angle ⁇ typically corresponds to half the spread angle ⁇ (see FIG. FIG. 7b ), with the proviso that the passed swivel angle ⁇ of the mast sections connected by means of this swivel joint 81 during folding and unfolding corresponds to approximately 180 °.
  • skew angle ⁇ and ⁇ 'results from the input or Ausklapp flood the respective mast sections.
  • the embodiment of FIG. 5 has a game, in the form of a gap between the tail of the mast section B and the Endgabelung 10 of the mast section A.
  • a Guide arrangement 17 is provided, which also provides the side guide surfaces also required for this pivot joint.
  • a first guide surface of such a guide arrangement may for example be formed integrally with the fork 10 of the mast section A, the corresponding mating surface may be formed integrally with the rod-like end piece of the mast section B.
  • the guide assembly 17 may also be constructed of a plurality of spacers having correspondingly shaped inclined surfaces. Other embodiments are possible.
  • the skew angle ⁇ and ⁇ ' should not exceed a maximum value of 10 °, preferably of 8 °. This results in an approximately twice as large spread angle ⁇ or ⁇ ', which proves to be practicable value at present.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Jib Cranes (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Framework For Endless Conveyors (AREA)
  • Ship Loading And Unloading (AREA)
  • Spray Control Apparatus (AREA)

Claims (8)

  1. Mât articulé (1) pour système de transport de matière dense, notamment pour système de transport de béton, ledit mât comportant au moins deux portions de mât (A, B) très allongées sensiblement le long d'un axe longitudinal (14) et reliées entre elles au moyen d'une articulation pivotante (8), une deuxième portion de mât (B) étant apte à pivoter par rapport à une première portion de mât (A) immédiatement précédente d'une position repliée de transport ou de repos du mât articulé (1), dans laquelle elle est placée partiellement sur le côté de la première portion de mât précédente (A), dans une position dépliée de travail,
    caractérisé en ce que
    une extrémité de la deuxième portion de mât (B) placée sur le côté est montée sur la première portion de mât (A) immédiatement précédente au moyen d'un axe d'articulation pivotante (131) incliné, en ce que, lorsque le mât articulé (1) est dans la position dépliée de travail, les deux portions de mât (A, B) sont orientées sensiblement dans un plan de référence vertical (16) qui passe par l'axe longitudinal (14) de la première portion de mât précédente et en ce que, dans la position de transport repliée, la deuxième portion de mât (B) est écartée de la première portion de mât (4) précédente avec un angle d'écartement défini (α).
  2. Mât articulé (1) selon la revendication 1, caractérisé en ce que l'axe d'articulation pivotante (131) incliné forme avec une perpendiculaire à l'axe longitudinal (14) de la première portion de mât (A) ou son prolongement un angle de position inclinée (β) qui est de 10° maximum, de préférence 8° maximum, l'angle de position inclinée (β) étant défini dans un plan horizontal.
  3. Mât articulé (1) selon la revendication 1 ou 2,
    caractérisé en ce que
    une troisième portion de mât suivante est montée à l'autre extrémité de la deuxième portion (B) écartée partiellement sur le côté au moyen d'un axe d'articulation pivotante (131) également incliné, en ce que la deuxième portion de mât écartée sur le côté et la troisième portion de mât suivante sont orientées sensiblement dans le plan de référence verticale lorsque le mât articulé est dans la position dépliée de travail, et en ce que, dans la position repliée de transport, la troisième portion de mât suivante est disposée sensiblement parallèlement à la première portion de mât précédente (B), l'axe longitudinal de la deuxième portion de mât écartée sur le côté formant avec l'axe longitudinal de la troisième portion de mât suivante un deuxième angle d'écartement (α').
  4. Mât articulé (1) selon la revendication 3,
    caractérisé en ce que
    l'angle d'écartement (α) est à peu près égal au double de l'angle de position inclinée (β) et en ce que le deuxième angle d'écartement (α') est à peu près égal au double d'un deuxième angle de position inclinée correspondant (β').
  5. Mât articulé (1) selon la revendication 3,
    caractérisé en ce que
    les angles de position inclinée (β, β') des deux axes d'articulation pivotante inclinés (131) sont égaux et ont notamment une valeur angulaire selon la revendication 2.
  6. Mât articulé (1) selon l'une des revendications précédentes,
    caractérisé en ce que
    le mât articulé (1) comporte au moins trois portions de mât, la portion de mât écartée sur le côté est, en comptant à partir de la fixation du mât, la deuxième portion de mât (5), notamment la troisième portion de mât (6).
  7. Mât articulé selon l'une des revendications précédentes,
    caractérisé en ce que
    la position de travail du mât articulé (1), dans laquelle les portions de mât sont orientées sensiblement dans un plan de référence vertical (16), est structurellement déterminée en affectant à chaque portion de mât individuelle une position d'extrémité pour son mouvement de pivotement.
  8. Système de transport de matières denses, notamment système de transport de béton, ledit système comportant au moins une pompe destinée à transporter la matière dense et une conduite de transport de la matière dense qui est disposée au niveau d'un mât articulé (1), le mât articulé (1) étant constitué de portions de mât (4, 5, 6, 7) qui sont reliées entre elles de façon articulée,
    caractérisé par
    un mât articulé (1) selon l'une des revendications précédentes.
EP06818647A 2005-11-22 2006-11-17 Mat articule pour installation de transport de matieres denses Not-in-force EP1951972B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005055667A DE102005055667B4 (de) 2005-11-22 2005-11-22 Knickmast für eine Dickstoffförderanlage
PCT/EP2006/011079 WO2007059904A1 (fr) 2005-11-22 2006-11-17 Mat articule pour installation de transport de matieres denses

Publications (2)

Publication Number Publication Date
EP1951972A1 EP1951972A1 (fr) 2008-08-06
EP1951972B1 true EP1951972B1 (fr) 2009-09-30

Family

ID=37708312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06818647A Not-in-force EP1951972B1 (fr) 2005-11-22 2006-11-17 Mat articule pour installation de transport de matieres denses

Country Status (11)

Country Link
US (1) US8251095B2 (fr)
EP (1) EP1951972B1 (fr)
KR (1) KR101059033B1 (fr)
CN (1) CN101313116B (fr)
AT (1) ATE444420T1 (fr)
AU (1) AU2006316895B2 (fr)
BR (1) BRPI0619212A2 (fr)
CA (1) CA2630509C (fr)
DE (2) DE102005055667B4 (fr)
ES (1) ES2310162T3 (fr)
WO (1) WO2007059904A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008027233A1 (de) 2008-06-06 2009-12-10 Schwing Gmbh Gelenkbolzen als Bestandteil einer Dickstoff-Leitung
IT1398899B1 (it) * 2010-03-12 2013-03-21 Cifa Spa Braccio di distribuzione di calcestruzzo e relativo procedimento di realizzazione
DE102010027635B4 (de) * 2010-07-19 2019-12-05 Schwing Gmbh Gelenkbolzenverbindung für Mastgelenke in einem Knickmast einer Betonpumpe
DE102011018267A1 (de) * 2011-04-20 2012-10-25 Schwing Gmbh Vorrichtung und Verfahren zur Dickstoff-, insbesondere Betonförderung mit Drehwinkelmessung
CN102674214B (zh) * 2012-05-25 2015-06-17 徐州重型机械有限公司 一种高空作业工程机械及其侧置折叠臂架
CN103410326B (zh) * 2013-08-20 2016-04-20 中联重科股份有限公司 过渡节臂及其制造方法、折叠臂架、布料设备

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US531121A (en) * 1894-12-18 hofbeck
US2296250A (en) * 1939-01-05 1942-09-22 Autogiro Co Of America Aircraft with sustaining rotors
US3009646A (en) * 1958-09-11 1961-11-21 Purtell Rufus Judson Irrigation pipe moving system
FR1443948A (fr) * 1965-03-24 1966-07-01 Bicyclette pliante perfectionnée
JPH076292B2 (ja) 1990-01-12 1995-01-30 極東開発工業株式会社 流動体移送用多段ブーム装置
DE19644412A1 (de) * 1996-10-25 1998-04-30 Putzmeister Ag Betonverteilermast für Betonpumpen
EP1117883B1 (fr) * 1998-09-28 2003-03-26 PUTZMEISTER Aktiengesellschaft Pompe radiale a beton
DE19959070A1 (de) * 1999-12-08 2001-06-13 Putzmeister Ag Verteilermast für Betonpumpen
DE10106427B4 (de) * 2001-02-12 2006-06-22 Schwing Gmbh Verteilervorrichtung für Dickstoffe, insbesondere für Beton
US6942235B2 (en) * 2003-12-01 2005-09-13 Wen-Pin Chang Foldable bicycle

Also Published As

Publication number Publication date
WO2007059904A1 (fr) 2007-05-31
ATE444420T1 (de) 2009-10-15
KR101059033B1 (ko) 2011-08-24
AU2006316895A1 (en) 2007-05-31
US8251095B2 (en) 2012-08-28
CA2630509C (fr) 2011-03-29
BRPI0619212A2 (pt) 2011-09-20
DE102005055667A1 (de) 2007-05-31
EP1951972A1 (fr) 2008-08-06
ES2310162T3 (es) 2010-01-08
CA2630509A1 (fr) 2007-05-31
US20090028633A1 (en) 2009-01-29
CN101313116A (zh) 2008-11-26
KR20080080319A (ko) 2008-09-03
ES2310162T1 (es) 2009-01-01
DE502006005002D1 (de) 2009-11-12
DE102005055667B4 (de) 2009-02-12
AU2006316895B2 (en) 2010-07-01
CN101313116B (zh) 2013-04-17

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