WO2007057100A1 - Hydraulikzylinder - Google Patents
Hydraulikzylinder Download PDFInfo
- Publication number
- WO2007057100A1 WO2007057100A1 PCT/EP2006/010350 EP2006010350W WO2007057100A1 WO 2007057100 A1 WO2007057100 A1 WO 2007057100A1 EP 2006010350 W EP2006010350 W EP 2006010350W WO 2007057100 A1 WO2007057100 A1 WO 2007057100A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hydraulic cylinder
- cylinder
- bottom region
- container
- mast
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1433—End caps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
Definitions
- the present invention relates to a hydraulic cylinder for multi-part mast structure made up of at least two articulated mast arms, one of which can be pivoted by the hydraulic cylinder relative to the other mast arm, in particular for concrete pumps, cranes, lifting platforms and the like, with a cylinder container which is closed on one side in a floor area for receiving a Piston.
- the present invention relates to a device with a mast structure with at least two articulated mast arms, one of which can be pivoted relative to the other mast arm by a hydraulic cylinder, in particular for concrete pumps, cranes, lifting platforms and the like.
- mast structures made up of a plurality of mast arms, each of which is articulated in pairs, are used in the construction industry, for example, to convey flowable building materials, such as concrete, from a central delivery location to virtually any processing locations within the reach of the mast structure.
- two mast arms of the mast structure are connected to one another in an articulated manner and pivotable relative to one another by means of a hydraulic cylinder.
- the hydraulic cylinder machine is a pressure vessel of variable geometry for delivering and absorbing forces.
- the housing of the hydraulic cylinder hereinafter also referred to as the cylinder container, is formed from a (cylinder) tube with a welded-on base piece.
- the base piece regularly consists of a solid cylinder with a transverse bore for a bearing pin, which is provided for fastening the hydraulic cylinder to one of the mast arms.
- the base piece can also be designed in the form of a disk with a welded-on cross tube as a pin bearing.
- the corresponding bolt eye is narrow and equipped with a spherical bearing, or it reaches the width of the container or protrudes laterally beyond this.
- the base section is welded to the cylinder tube as a carefully machined disc.
- the pin bearing is also connected in a complex manner to the base plate. The design of the base piece as a steel casting improves the stability properties of the solution described above.
- the invention is based on the object, while avoiding the disadvantages mentioned above, of creating a hydraulic cylinder which, owing to an improved flow of force, can be produced with a reduced amount of material and thus a reduced overall weight with at least equivalent or improved stability.
- the invention is based on the object of providing a device with a mast structure which, in comparison with known devices of this type, is distinguished in particular by a lower overall weight and improved movement and stability properties.
- the object is achieved in that the bottom region of the cylinder container is curved.
- the object is achieved in that the device has at least one hydraulic cylinder according to the invention for pivoting the mast arms.
- the basic idea of the approach according to the invention is to replace the bottom part of the hydraulic cylinder, which is conventionally formed in the form of a disc, with a curved shell, in particular a hemisphere shape which, from a static point of view, represents the optimal shape and accordingly requires the smallest wall thickness with maximum weight reduction.
- a preferred development of the hydraulic cylinder according to the invention provides that the bottom area is concave with respect to the cylinder container, i.e. curved outwards, is formed, which results in a particularly favorable flow of force.
- the bottom area is convex, i.e. arched inwards, is formed.
- the bottom area has a uniform curvature on average, the bottom area of a particularly preferred development of the hydraulic cylinder according to the invention being designed as a spherical section, in particular as a hemispherical shell .
- hydraulic cylinder in the base region of the cylinder container with a curvature which is uneven in section.
- a further embodiment of the hydraulic cylinder according to the invention provides that the bottom region of the cylinder container is designed as a paraboloid.
- the bottom area is symmetrical in section with respect to a longitudinal axis of the cylinder container.
- hydraulic cylinder according to the invention is to be used for use with a mast arm structure known per se, it will be necessary to place a bearing eye in the form of an eye part in the bottom region of the cylinder container, i.e. to provide a component with at least one such bearing eye.
- a particularly preferred embodiment of the hydraulic cylinder according to the invention provides that the base area on its inside as a spherical section, in particular as a hemisphere, and on it Outside is designed as a paraboloid, which results in the desired increase in wall thickness, especially in the apex area of the curvature, so that preferably a bearing eye (eye part) can be arranged there.
- the cylinder tube can be extended beyond the curved floor area in order to divert reaction or bearing forces, the bearing eyes for the bearing pin for fastening the hydraulic cylinder to one of the mast arms being able to be used in the additional space thus gained.
- the eye part is designed as an annular part which extends the cylinder container beyond its base region and has two eye openings arranged opposite one another in its jacket for receiving at least one fastening bolt.
- the above-described extension of the cylinder container beyond the base region expediently results from the attachment of an additional ring part, whereas if the base region is convexly curved, this or the corresponding base piece itself can be extended downward beyond the cylinder container, so that no further ring part is to be provided.
- a fastening bolt guided outside the pressure range of the hydraulic cylinder requires a relatively large dead length of the cylinder in its bottom region.
- the bolt eye can also be moved into the pressure area of the hydraulic cylinder and penetrate it.
- the eye part is designed as a bolt bearing tube which penetrates the cylinder container.
- the pin bearing tube is arranged within a volume defined by the floor area.
- the bolt bearing tube covers the bottom region of the cylinder container, i.e. touches a wall of the cylinder container.
- the cylinder container can be formed in one piece in its base region as a cast part with improved stability properties.
- the pin bearing tube is also possible to arrange the pin bearing tube at a distance from the bottom region of the cylinder container.
- Such a construction has the advantage that the bolt bearing tube can still be produced on both sides after the cylinder container has been manufactured Opening the latter as a welded construction can be used subsequently in this.
- the bottom area and the bolt bearing tube can be formed together in one piece, in particular as a cast part.
- This cast part is connected to a cylinder tube to form a cylinder container by means of an annular weld seam.
- the seam preparation required for this also includes the training of the necessary bath protection for the weld seam. Due to the favorable flow of force according to the invention, it is possible to leave the bath safety device or to further relieve the load by means of an additional relief notch which is produced in one work step with the weld seam preparation. In this way, an additional, complex operation is saved in the course of the present invention without impairing the quality of the component obtained.
- Fig. 1 is a schematic overall view of an inventive
- FIG. 2 shows a schematic partial view of the mast structure of the concrete pump from FIG. 1; 3 shows a partial sectional view of a hydraulic cylinder with a concavely curved base area;
- FIG. 4 shows a partial sectional view of a hydraulic cylinder with a convexly curved base region
- FIG. 5 shows a first embodiment of the hydraulic cylinder according to the invention with an eye part arranged outside the cylinder container and a divided fastening bolt;
- FIG. 6 shows a second embodiment of the hydraulic cylinder according to the invention with an eye part arranged outside the cylinder container and a divided fastening bolt;
- FIG. 8 shows a further embodiment of the hydraulic cylinder according to the invention with a narrow eye part and a spherical bearing
- FIGS 9a, b a first embodiment of the hydraulic cylinder according to the invention with a bolt housing penetrating the cylinder container;
- FIGS. 10a, b show a further embodiment of the hydraulic cylinder according to the invention with a bolt housing penetrating the cylinder container;
- FIGS. 10a, b shows a detailed view of the hydraulic cylinder according to FIGS. 10a, b; and Figures 12 af detailed views - partly in section - of a further embodiment of the hydraulic cylinder according to the invention.
- the device 1 shows a device 1 according to the invention with a mast structure 2 in the form of a self-propelled concrete pump.
- the device 1 has a truck chassis 3 with a driver's cab 4 and a chassis support 5, on which a slewing gear 6 for the mast structure 2 is arranged.
- the mast structure 2 itself has a number of articulated mast arms, which is explained below with reference to FIG. 2.
- a concrete pump not explicitly shown, is furthermore built on the chassis 3, the filling funnel 7 of which, via which the concrete pump is acted upon by a mixer (not shown), is arranged at the rear of the vehicle.
- a conveyor device (not shown) for the concrete conveyed by the concrete pump is also provided on the mast structure 2, so that the concrete can be conveyed along the mast structure to any location within the range of the unfolded mast structure 2.
- FIG. 2 shows a schematic detailed view of the mast structure 2 from FIG. 1 in its unfolded state.
- the mast structure 2 has at least two mast arms 9, 10 connected to one another via a joint 8, one of which 10 can be pivoted relative to the other mast arm 9 by a hydraulic cylinder 11.
- the hydraulic cylinder 11 has, in a manner known per se, an essentially tubular cylinder container 12 in which a piston 13 is slidably received.
- the cylinder container 12 of the hydraulic cylinder 11 is articulated in a first pivot point 14 to a bearing part 15 of the first mast arm 9, while the piston 13 of the hydraulic cylinder 11 is fastened to a pivot point 17 of the second mast arm 10 via a piston rod 16.
- FIG. 3 shows a partial sectional view of a hydraulic cylinder 11 according to the present invention. Shown is the cylinder container 12 of a hydraulic cylinder 11, which, according to the exemplary embodiment shown, has rich 18 is closed on one side, wherein the bottom region 18 is designed in the manner of a hemisphere with respect to the interior 19 of the cylinder container 12 concave, that is curved outwards.
- the cylinder container 12 is formed in two parts from a cylinder tube 20 and a hemispherical base piece 21, which are connected via a weld seam 22.
- the cylinder container 12 can also be formed in one piece, in particular as a cast part.
- the cylinder container 12 is again formed from a cylinder tube 20 and a welded-on base piece 21, but the base piece 21 is arranged such that it is convex with respect to the interior 19 of the cylinder container 12, ie inwardly curved base region 18 forms.
- FIG. 2 the cylinder container 12 of the hydraulic cylinder 11 according to the invention is articulated on a first mast arm 9 of the mast arm arrangement 2.
- FIG. 5 shows a corresponding development according to the invention of the cylinder container 12 according to FIG. 3, in which the cylinder container 12 is extended beyond the curved base area 18 by means of an annular eye part 23.
- the eye part 23 has in its jacket diametrically opposite one another two eye openings 24, 24 ', through which a short fastening bolt 25 or 25' is guided, which for articulated fastening of the hydraulic cylinder 11 on the mast arm 9 with pairs provided on the mast arm of bearing elements 15, 15 'cooperates.
- the ring-shaped eye part 23 is connected to the cylinder container 12 by welding (weld seam 22).
- FIG. 6 shows a corresponding further development of the hydraulic cylinder 11 according to the invention according to FIG. 4.
- no additional eye part 23 is provided, but rather the bottom piece 21 of the cylinder container 12 downwards, ie extended at its open end and thus takes over the function of the ring-shaped eye part 23 according to FIG. 5.
- the bottom piece 21 has diametrically opposed eye openings 24, 24 ', into each of which a short fastening bolt 25, 25' is inserted.
- the fastening bolts 25, 25 ' in turn interact with pairs of bearing elements 15, 15' which are provided on the mast arm 9 according to FIG. 2.
- FIG. 7 shows alternative designs of the hydraulic cylinders 11 according to the invention described above with reference to FIGS. 5 and 6.
- a further development of the object of FIG. 5 is shown, in which only one continuous fastening bolt instead of two Fastening bolt 25 is present, which is guided in a continuous bolt bearing tube 26 extending between the eye openings 24, 24 'in the manner of a bolt housing.
- the right part of FIG. 7 shows a corresponding configuration for a hydraulic cylinder 11 according to FIGS. 4 and 6, i.e. a hydraulic cylinder with a convexly curved base region 18.
- FIGS. 5 to 7 shows a further embodiment of the hydraulic cylinder 11 according to the invention, in which the eye part is not designed as a connecting ring according to FIGS. 5 to 7, but as a narrow rib 27.
- a narrow, rib-shaped eye part 27 is arranged, preferably welded, at an apex of the curvature of the curved bottom area 18 of the cylinder container 12.
- the eye part 27 has an opening 28 oriented perpendicular to a longitudinal axis L of the cylinder container 12, in which an articulated bearing 29 is provided.
- the spherical bearing 29 has a continuous fastening bolt 25, which in turn interacts with suitable bearing elements 15, 15 'on the first mast arm 9 of the multi-part mast structure 2 (FIGS. 1, 2).
- the cylinder container 12 has a uniform hemispherical curvature in its bottom region 18 on its inside 30, ie facing the interior 19 of the cylinder container 12, and on its outside 31, ie facing away from the interior 19 of the cylinder container 12, an uneven, especially parabolic curvature. This leads to a slight thickening of the bottom area 18 of the cylinder container. ters 12 at the apex of the curvature, in which - as I said - the rib-shaped eye part 27 is arranged.
- FIGS. 9 to 11 show configurations of the hydraulic cylinder 11 according to the invention in which the fastening bolt 25 and the bolt bearing tube 26 (see FIG. 7) show the interior 19 penetrate the cylinder container 12.
- FIGS. 9a, b show a cylinder container 12 of a hydraulic cylinder 11 according to the invention with an outwardly curved hemispherical base region 18 (see FIG. 3), in which a bolt bearing tube 26 for a fastening bolt, not shown, penetrates the interior 19 of the cylinder container 12 in one area, which is defined (delimited) by the curved bottom region 18 of the cylinder container 12.
- the cylinder container 12 and the pin bearing tube 26 can be formed together in one piece (for example as a cast part).
- a two-piece design of the cylinder container 12 according to FIG. 3 is also possible, only the base piece 21 (FIG. 3) and the pin bearing tube 26 being formed in one piece as a casting.
- the bolt bearing tube 26 is arranged at a certain minimum distance D from the inner wall 30 of the cylinder container 12 in the bottom region 18 thereof.
- the pin bearing tube 26 has a circular cross section, as can be seen, for example, from FIG. 9b, but the invention is not defined therein. Rather, the pin bearing tube 26 can also have a non-circular, approximately rectangular, square, triangular or elliptical cross section.
- the center point of the pin bearing tube 26 is arranged on the longitudinal axis L of the cylinder container, other configurations are also possible. For example, in a further advantageous embodiment - -
- the center of the bolt bearing tube can be laterally offset by a distance from the longitudinal axis L.
- FIGS. 10a, b show an embodiment of the hydraulic cylinder 11 according to the invention, in which the pin bearing tube 26 touches the inner wall 30 of the cylinder container 12 in its bottom region 18.
- the base piece 21 (FIG. 3) of the cylinder container 12 and the pin bearing tube 26 are preferably formed in one piece (e.g. as a cast part).
- the cylinder container 12 is composed in two parts from a cylinder tube 20 and a base piece 21, preferably welded (weld seam 22), the base piece 21 of the cylinder container 12 towards its open end in a region 31 for stability reasons a thickening and in another area 32 has a recess on its inside 27.
- the pin bearing tube 26 is upwards, i.e. Extended trapezoidally in section in the direction of the cylinder interior 19, so that a stop 33 is created for the piston 13 movable within the cylinder container 12 (FIG. 2), the stop 33 preferably being located at the level of the recess 32.
- a casting contour of the base piece 21 is additionally shown before processing to form the thickening 31 or the recess 32.
- FIGS. 12a-f show a further embodiment of a base piece 21 of a hydraulic cylinder 11 according to the invention (cf. FIG. 3) in detail on the basis of a number of various (sectional) views.
- FIG. 12a a casting contour of the base piece 21 of a hydraulic cylinder according to the invention is again shown in section in the right part of the figure.
- FIG. 12a one that essentially corresponds to FIG. de Design of the base piece 21 with attached cylinder tube 20 after machining the cast contour (see. Fig. 1 1) shown.
- the base piece 21 has an inclined flattening 34 in the apex region of its curvature, to which an attachment 35 with a bore 36 connects - offset in the radial direction with respect to the longitudinal axis L of the base piece 21.
- the approach 35 serves as a specially machined flat surface for receiving a hydraulic valve that can be connected to the bore 36
- Fig. 12b shows a section along the line A-A (see Fig. 12d).
- This illustration shows, in particular in an area 37 of the curved bottom area 18, a radius of curvature R of the curved bottom area 18 which decreases from the outside in the direction of the longitudinal axis L of the bottom piece 21.
- FIGS. 12c and 12d show a side view and a top view of the base piece 21 according to FIGS. 12a, b, with FIG. 12d in particular showing a curvature of the stop 33, which is designed as a two-part projection, and runs approximately parallel to the outer contour of the base piece 21, which is circular in plan view can be seen (see also Fig. 12e).
- FIGS. 12e and 12f show a sectional view along the line BB in FIG. 12d and a view of the base piece 21 viewed from below (arrow X in FIG. 12e).
- the approach according to the invention with a penetration of the volume defined by the curved bottom region 18 of the cylinder container 12 offers the possibility of varying the eye width AB (FIG. 12d) compared to a width ZB (FIG. 12d) of the cylinder container 12 to relatively far beyond the last-mentioned width ZB, the increase in width (AB-ZB) being limited solely by the bending strength of the structure.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Forklifts And Lifting Vehicles (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES06806573T ES2310160T3 (es) | 2005-11-17 | 2006-10-26 | Vehículo con bomba de hormigón |
CA2629973A CA2629973C (en) | 2005-11-17 | 2006-10-26 | Hydraulic cylinder |
AU2006314881A AU2006314881B2 (en) | 2005-11-17 | 2006-10-26 | Hydraulic cylinder |
BRPI0619397-8A BRPI0619397A2 (pt) | 2005-11-17 | 2006-10-26 | cilindro hidráulico |
US12/093,897 US20090090687A1 (en) | 2005-11-17 | 2006-10-26 | Hydraulic Cylinder |
KR1020087014673A KR101339853B1 (ko) | 2005-11-17 | 2006-10-26 | 유압실린더 |
EP06806573A EP1952033B1 (de) | 2005-11-17 | 2006-10-26 | Betonpumpenfahrzeug |
CN200680042991.3A CN101313156B (zh) | 2005-11-17 | 2006-10-26 | 具有混凝土泵和多部桅杆上部结构的混凝土泵运输车辆 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0187405A AT502871B1 (de) | 2005-11-17 | 2005-11-17 | Hydraulikzylinder |
ATA1874/2005 | 2005-11-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007057100A1 true WO2007057100A1 (de) | 2007-05-24 |
Family
ID=37617997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/010350 WO2007057100A1 (de) | 2005-11-17 | 2006-10-26 | Hydraulikzylinder |
Country Status (10)
Country | Link |
---|---|
US (1) | US20090090687A1 (de) |
EP (1) | EP1952033B1 (de) |
KR (1) | KR101339853B1 (de) |
CN (2) | CN104314910B (de) |
AT (1) | AT502871B1 (de) |
AU (1) | AU2006314881B2 (de) |
BR (1) | BRPI0619397A2 (de) |
CA (1) | CA2629973C (de) |
ES (1) | ES2310160T3 (de) |
WO (1) | WO2007057100A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012215090A1 (de) * | 2012-08-24 | 2014-02-27 | Putzmeister Engineering Gmbh | Mastarm für einen Betonverteilermast |
CN103057927B (zh) * | 2013-01-15 | 2015-09-09 | 湖南晨光机器制造有限公司 | 一种运砂自卸舶用的液压折叠式输送臂 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3566748A (en) * | 1967-08-31 | 1971-03-02 | Entwicklungspring Sud Gmbh | Dual-acting, redundant, hydraulic cylinder arrangement for air and spacecraft |
AT347750B (de) * | 1976-11-11 | 1979-01-10 | Vmw Ranshofen Berndorf Ag | Druckluft- oder hydraulikzylinder |
JPS5861310A (ja) * | 1981-10-02 | 1983-04-12 | Kyokuto Kaihatsu Kogyo Co Ltd | 流体圧シリンダ |
FR2632025A1 (fr) * | 1988-05-30 | 1989-12-01 | Hors Piste Plongee Sarl | Nouveau verin hydraulique a performances elevees |
JPH0949508A (ja) * | 1995-08-08 | 1997-02-18 | Shimadzu Corp | 液圧式シリンダ装置 |
DE29910970U1 (de) * | 1999-06-23 | 1999-09-02 | Festo Ag & Co | Fluidbetätigter Arbeitszylinder |
DE10106427A1 (de) * | 2001-02-12 | 2002-08-14 | Schwing Gmbh F | Verteilervorrichtung für Dickstoffe, insbesondere für Beton |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191101284A (en) * | 1911-01-18 | 1911-06-15 | Lewis Robert Doran | Improvements in and connected with Hydraulic Lifting Jacks. |
US2451089A (en) * | 1945-08-20 | 1948-10-12 | Casimir A Miketta | Hydraulic cylinder construction |
US2655872A (en) * | 1948-11-09 | 1953-10-20 | Fairmont Railway Motors Inc | Vehicle structure |
GB1204479A (en) * | 1966-11-14 | 1970-09-09 | Winget Ltd | Fluid operated ram assemblies |
AT332101B (de) * | 1969-06-10 | 1976-09-10 | Schwing Friedrich | Vorrichtung zum verteilen von beton |
JPS5313072A (en) * | 1976-07-20 | 1978-02-06 | Tokico Ltd | Method of forming gas chamber of gas enclosure type closed cylinder |
US4211150A (en) * | 1977-10-26 | 1980-07-08 | Abex Corporation | Air cylinder |
JPS5569339A (en) * | 1978-11-20 | 1980-05-24 | Tokico Ltd | Gas sealed cylinder device |
JPS6035812Y2 (ja) * | 1979-11-09 | 1985-10-24 | トキコ株式会社 | ガススプリング |
JPH0249418B2 (ja) * | 1983-02-10 | 1990-10-30 | Nhk Spring Co Ltd | Yuatsukanshoki |
JPS60169443U (ja) * | 1984-04-20 | 1985-11-09 | トキコ株式会社 | ガス封入式油圧緩衝器 |
US4685384A (en) * | 1984-08-20 | 1987-08-11 | Pneumo Corporation | Fluid actuator including composite cylinder assembly |
US4729538A (en) * | 1986-11-10 | 1988-03-08 | Bergacker John W | Apparatus for hydraulically actuating a vehicle seat |
US4878419A (en) * | 1988-06-27 | 1989-11-07 | Allied-Signal Inc. | Lightweight hydraulic actuator |
DE10064365B4 (de) * | 2000-12-22 | 2010-12-16 | Schwing Gmbh | Hydraulik-Zylinder |
US6786233B1 (en) * | 2001-02-23 | 2004-09-07 | Schwing America, Inc. | Boom utilizing composite material construction |
DE10112086A1 (de) * | 2001-03-12 | 2002-09-26 | Putzmeister Ag | Verteilervorrichtung für Dickstoffe |
-
2005
- 2005-11-17 AT AT0187405A patent/AT502871B1/de not_active IP Right Cessation
-
2006
- 2006-10-26 AU AU2006314881A patent/AU2006314881B2/en not_active Ceased
- 2006-10-26 WO PCT/EP2006/010350 patent/WO2007057100A1/de active Application Filing
- 2006-10-26 BR BRPI0619397-8A patent/BRPI0619397A2/pt not_active Application Discontinuation
- 2006-10-26 KR KR1020087014673A patent/KR101339853B1/ko active IP Right Grant
- 2006-10-26 ES ES06806573T patent/ES2310160T3/es active Active
- 2006-10-26 EP EP06806573A patent/EP1952033B1/de active Active
- 2006-10-26 CN CN201410412284.5A patent/CN104314910B/zh active Active
- 2006-10-26 CA CA2629973A patent/CA2629973C/en not_active Expired - Fee Related
- 2006-10-26 US US12/093,897 patent/US20090090687A1/en not_active Abandoned
- 2006-10-26 CN CN200680042991.3A patent/CN101313156B/zh not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3566748A (en) * | 1967-08-31 | 1971-03-02 | Entwicklungspring Sud Gmbh | Dual-acting, redundant, hydraulic cylinder arrangement for air and spacecraft |
AT347750B (de) * | 1976-11-11 | 1979-01-10 | Vmw Ranshofen Berndorf Ag | Druckluft- oder hydraulikzylinder |
JPS5861310A (ja) * | 1981-10-02 | 1983-04-12 | Kyokuto Kaihatsu Kogyo Co Ltd | 流体圧シリンダ |
FR2632025A1 (fr) * | 1988-05-30 | 1989-12-01 | Hors Piste Plongee Sarl | Nouveau verin hydraulique a performances elevees |
JPH0949508A (ja) * | 1995-08-08 | 1997-02-18 | Shimadzu Corp | 液圧式シリンダ装置 |
DE29910970U1 (de) * | 1999-06-23 | 1999-09-02 | Festo Ag & Co | Fluidbetätigter Arbeitszylinder |
DE10106427A1 (de) * | 2001-02-12 | 2002-08-14 | Schwing Gmbh F | Verteilervorrichtung für Dickstoffe, insbesondere für Beton |
Also Published As
Publication number | Publication date |
---|---|
US20090090687A1 (en) | 2009-04-09 |
ES2310160T3 (es) | 2012-11-22 |
KR101339853B1 (ko) | 2013-12-10 |
CA2629973C (en) | 2011-04-19 |
AT502871B1 (de) | 2008-06-15 |
CN101313156B (zh) | 2014-09-03 |
AT502871A1 (de) | 2007-06-15 |
EP1952033A1 (de) | 2008-08-06 |
CN104314910A (zh) | 2015-01-28 |
CA2629973A1 (en) | 2007-05-24 |
BRPI0619397A2 (pt) | 2011-10-04 |
EP1952033B1 (de) | 2012-08-01 |
CN104314910B (zh) | 2017-09-19 |
CN101313156A (zh) | 2008-11-26 |
ES2310160T1 (es) | 2009-01-01 |
AU2006314881A1 (en) | 2007-05-24 |
KR20080082648A (ko) | 2008-09-11 |
AU2006314881B2 (en) | 2011-07-14 |
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