EP2683645A1 - Loading crane jib - Google Patents
Loading crane jibInfo
- Publication number
- EP2683645A1 EP2683645A1 EP12712877.5A EP12712877A EP2683645A1 EP 2683645 A1 EP2683645 A1 EP 2683645A1 EP 12712877 A EP12712877 A EP 12712877A EP 2683645 A1 EP2683645 A1 EP 2683645A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- boom
- extension
- piston rod
- thrust
- 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
Links
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 description 4
- 125000002066 L-histidyl group Chemical group [H]N1C([H])=NC(C([H])([H])[C@](C(=O)[*])([H])N([H])[H])=C1[H] 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/42—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes with jibs of adjustable configuration, e.g. foldable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/54—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with pneumatic or hydraulic motors, e.g. for actuating jib-cranes on tractors
-
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
- F15B11/205—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members the position of the actuator controlling the fluid flow to the subsequent actuator
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/07—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors in distinct sequence
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
Definitions
- the invention relates to a hydraulically actuatable boom for a loading crane, comprising: at least two boom extensions, wherein the one boom extension is designed as an outer boom extension and the second boom extension is designed as an inner boom extension, and
- At least two thrust cylinder for extending and retracting the at least two boom extensions
- a switching valve which is achieved by reaching a defined retraction position of the outer boom extension - in particular when the outer boom extension is fully retracted - in the open position and thereby feeds the thrust cylinder of the inner boom extension with pressurized working fluid.
- the invention relates to a loading crane with a hydraulically actuated boom according to one of claims 1 to 13 and further relates to a vehicle with such a loading crane.
- Hydraulically operable booms for loading cranes are already known in a variety of the prior art.
- EP 0 566 720 B1 of 10 November 1992 shows a multi-stage telescopic boom, in particular for a loading crane on a truck, wherein between each successive telescopic arms arranged one inside a piston and cylinder having hydraulic unit is arranged, wherein at least the cylinder of the innermost arm of the cylinder bottom, a pipe is axially in the cylinder chamber, which at least partially retracted piston against this sealed into the hollow piston rod, and thus seals the cylinder chamber relative to the interior of the hollow piston rod, the interior of each hollow piston rod via a preferably rigid line with the cylinder space of the next inner Hydraulic unit is connected and that the interior of each hollow piston rod communicates with fully extended piston with the cylinder chamber of the same hydraulic unit.
- the object of the invention is to provide an improved hydraulically actuated boom for a loading crane.
- outer pintle cylinder refers to the pintle cylinder of the inner boom extension
- outer pintle cylinder refers to the pintle cylinder of the outer boom extension
- the retraction line passes through at least the thrust piece cylinder of the inner boom extension without causing the working fluid in the retraction line communicates during traversal with this Schub consortiumzylinder.
- the entry line is formed telescopically inside the thrust cylinder of the inner boom extension.
- the length of the entry line can be adapted to the effective length of the thrust piece cylinder, that is to say that the telescopically formed entry line can move together with the thrust piece cylinder.
- the entry line comprises at least two nested tubes which are telescopically movable relative to each other.
- a telescopic design is particularly preferably produced by two nested tubes. It has proved to be particularly advantageous if a seal is formed between the two nested tubes.
- the thrust cylinder of the inner boom extension has at least one cylinder, at least one piston and at least one piston rod, wherein one of the two tubes is stationary in the cylinder of the thrust cylinder and the second tube is formed stationary in the piston rod of the thrust cylinder.
- the stationary design of the two tubes in the thrust piece cylinder can ensure that both tubes move uniformly together with the thrust piece cylinder.
- the outer of the two tubes has a recess in a lateral surface of the tube, wherein the recess is formed at an end region of the tube.
- the piston has at least one extension channel, wherein the extension channel extends from a cylinder chamber into a piston rod chamber. Via an extension channel in the piston, the working medium can flow from the cylinder chamber into the piston rod chamber.
- the piston has at least one entry channel, wherein the entry channel extends from the cylinder chamber into the piston rod chamber, wherein in the retraction a check valve is formed. Through a run-in channel in the piston can be achieved that the working fluid can flow from the piston rod chamber into the cylinder chamber during retraction.
- the piston rod has at least one piston rod channel, wherein the piston rod channel extends from one end region of the piston rod to the other end region of the piston rod, wherein the switching valve is arranged on the one end region and on another end region surrounding the piston rod chamber is formed, wherein the piston rod surrounding chamber is formed in the cylinder of the pusher cylinder.
- At least one check valve is formed on the piston rod channel.
- the working medium which is located in the piston rod chamber can escape from this when extending the thrust piece cylinder and - flow through the check valve - by traversing the piston rod channel.
- the switching valve is designed as a directional control valve - preferably as a 2/2 way valve - is formed.
- the switching valve is formed mechanically actuated. This can contribute to a cost-effective variant of a switching valve.
- the boom at least one - preferably at least two - further inner boom extension (s) with thrust cylinder (s), wherein the working fluid of the Einfahrtechnisch between the tank and the mouth of the thrust cylinder of the outermost boom extension in any position of the thrust cylinder of the inner Boom extensions with the jib cylinders of the inner jib extensions communicate as long as the outermost jib extension has not reached its retracted position.
- the use of multiple inner boom extensions and associated thrust cylinder can help increase the reach of the boom.
- the invention further relates to a loading crane with a hydraulically actuated boom according to one of claims 1 to 14.
- a hydraulically actuated boom can be advantageously used. Protection is also sought for vehicle with such a loading crane.
- advantageous loading cranes can be used with hydraulically actuated arms.
- Pusher cylinder for three inner boom extensions a section through a detailed view of a pawl cylinder.
- Boom extensions Figure 1 shows a loading crane 101 with a crane column 102, a first boom 103 and a second boom 100.
- the hydraulically actuated boom 100 has a plurality of boom extensions 1, 2, 3 and 4.
- the boom extensions 1, 2, 3 and 4 are each extended and retracted with associated thrust cylinder 11, 21, 31 and 41 respectively.
- the loading crane 101 has in this preferred embodiment, a further third boom 104, which also has telescopically formed and hydraulically actuated boom extensions.
- a further third boom 104 which also has telescopically formed and hydraulically actuated boom extensions.
- such loading cranes 101 are mounted on vehicles. However, they are also used stationary.
- Figure 2 shows a schematic representation of two thrust cylinder 21 and 11 for two outer 1 and inner boom extensions not shown 2.
- the thrust cylinder 1 1 on the outer boom extension 1 and the thrust cylinder 21 is arranged on the inner boom extension 2.
- both thrust cylinder 11 and 21 are fully retracted. extension process:
- the extension line 7 or the working medium 5 located therein (not shown) is pressurized.
- the pressurization spreads the working fluid 5 in the cylinder 26 and its cylinder chamber 261 and thereby displaces the piston 27 and thus the piston rod 28, the piston rod 28 moves out.
- the working medium 5 could until now only propagate in the cylinder chamber 261, whereby only the thrust piece cylinder 21 extends and not the thrust piece cylinder 11.
- the piston rod 28 at least one piston rod channel 282, wherein the piston rod channel 282 of an end portion of the piston rod 28 to the other end portion of the piston rod 28 extends, wherein at one end portion, the switching valve 22 is disposed and at the other end portion surrounding the piston rod 28 chamber 262 is formed, wherein the piston rod 28 surrounding chamber 262 in the cylinder 26 of the pusher cylinder 21 is formed.
- the working medium 5 (not shown), which is located in the chamber 262 surrounding the piston rod 28, must escape.
- the working medium 5 can flow away from the piston rod 28 surrounding chamber 262 via the piston rod channel 282 and the check valve 283 from the thrust cylinder 21.
- the working medium 5 via the two telescopically formed tubes 23 and 24 flow back into a tank, not shown.
- the telescopically formed tubes 23 and 24 are formed in the interior of the thrust cylinder 21, whereby a very compact thrust cylinder 21 is achieved.
- the working medium 5 (not shown) in the retraction line 6 starts directly at the junction 12 of the thrust piece cylinder 11 of the outer boom extension 1, not shown.
- the run-in line 6 extends transversely through the pusher cylinder 21 by two telescopically formed tubes 23 and 24.
- the two tubes 23 and 24 are connected via a seal 25, whereby no working fluid from the two tubes 23 and 24 to the tubes 23 and 24 surrounding chambers 261 and 281 of the pusher cylinder 21 can escape.
- the working medium 5 spreads in the chamber 162 surrounding the piston rod 18, whereby the piston rod 18 and the piston 17 retract (situation shown in FIG. 3).
- the switching valve 22 is preferably mechanically actuated by a lever 51 on the thrust cylinder 21, whereby the inflow to the piston rod channel 282 for the working fluid 5 of the retraction line 6 is released.
- the opening of the switching valve could be done in any other way, such as electrically.
- the non-pressurized working fluid 5 in the cylinder chamber 261 is pushed out of the cylinder 26 during this retraction movement and can flow away via the extension conduit 7. If a plurality of thrust cylinder 21 of this type are connected in series (see Figure 4), the effluent working fluid 5 in the extension 7 respectively by the successively connected Schub Federationzylinder 21 through the piston rod chamber 281, then through the extension channel 271 and then through the recess 29 of the tube 23rd and drain through the cylinder chamber 261.
- Such a configuration of a sequential control achieves both a sequential extension of the thrust cylinder 21 and 11 and a sequential retraction of the thrust cylinder 1 and 21.
- FIG. 4 shows a schematic representation of a hydraulically actuable boom 100 (see FIG. 1) for a loading crane 101 (see FIG. 1).
- the hydraulically actuatable boom 100 has four boom extensions 1, 2, 3 and 4 (see FIG. 1), one boom extension being formed as the outermost boom extension 1 and the three other three boom extensions 2, 3 and 4 being inner boom extensions 2 , 3 and 4 are formed.
- the boom extensions 1, 2, 3 and 4 each have at least one thrust cylinder 11, 21, 31 and 41, with which the boom extensions 1, 2, 3 and 4 can be extended or retracted.
- the hydraulically actuated boom 100 in this case has a hydraulic circuit for a working medium 5 - in this preferred embodiment oil - with a retraction line 6 for pressurized retraction of the thrust piece cylinder 21, 31 and 41, wherein the retraction line 6 in the thrust cylinder 11 of the outermost boom extension. 1 opens.
- the boom 100 further has an extension line 7 for the pressurized extension of the thrust cylinder 1 1, 21, 31 and 41.
- the pusher cylinders 21, 31 and 41 each have one Switching valve 22, 32 and 42, which by reaching a defined retraction position of the next outer boom extension or its thrust cylinder 11, 21 and 31 - in particular when the outer boom extension 1,2 and 3 or their Schub Federationzylinder 11, 21 and 31 substantially are fully retracted - are switchable in the open position and thereby the next inner thrust cylinder 21, 31 and 41 of the inner boom extension 2, 3 and 4 can feed with pressurized working medium 5.
- the entry line 6 traverses all three thrust cylinder, 21, 31 and 41 of the inner boom extensions 2, 3 and 4 without causing the working fluid 5 in the entrance line 6 - during the crossing - with the thrust cylinder 21, 31 and 41 communicates.
- the retraction line 6 is formed telescopically in the interior of the thrust cylinder 21, 31, 41 by two nested tubes 23 and 24 or 33 and 34 or 43 and 44 are formed, which are telescopically movable relative to each other.
- the tube 23, 33 and 43 fixed in the cylinder of the associated thrust cylinder 21, 31 and 41 is formed and the second tube 24, 34 and 44 is stationary in the associated piston rod of the associated thrust cylinder 21, 31 and 41st educated.
- each of the outer tube 23, 33 and 43 has a recess 29, 39 and 49 in the lateral surface of the associated tube, said recesses 29. 39 and 49 at an end portion of the tube 23, 33 and 43 are formed.
- the switching valve 22, 32 and 42 is formed in this preferred embodiment as a 2/2 way valve and is operated mechanically via the levers 51, 52 and 53, respectively.
- the extension or retraction movement of these four illustrated thrust cylinder 11, 21, 31 and 41 works analogously as described in the figure description of Figures 2 and 3.
- Both the extension and the retraction is performed sequentially, that is, only ever one thrust cylinder 11, 21, 31 or 41 extends or retracts.
- the working medium 5 is always released only after essentially complete extension or retraction for the next outer thrust piece cylinder 31, 21 and 11 or for the next inside thrust piece cylinder 21, 31 and 41.
- FIG. 5 shows a detailed view of a section through a pusher cylinder 21 in a position as shown in FIG. 3, when it has been substantially fully extended.
- the thrust cylinder 21 In the interior of the thrust cylinder 21 extend the two telescopically formed tubes 23 and 24. In this case, these two tubes 23 and 24 extend transversely through the cylinder 26, the piston 27 and the piston rod 28.
- telescopic line 6 - consisting of the two tubes 23 and 24 - make it possible for the retraction required oil 5 through the thrust cylinder 21 (and 31 and 41 as shown in Figure 4) forward to the thrust cylinder 11, in this preferred embodiment, the rear, with the cylinder 26 connected to the larger tube 23 is connected and the smaller tube 24 is connected to the piston rod 28, wherein the smaller tube 24 projects into the larger tube 23 and is guided in this tight.
- This line 6 makes it possible to supply oil to the frontmost not yet retracted thrust cylinder 11 (see FIG. 3) on the driving side until it has completely retracted.
- the control valve 22 see FIG. 3) is actuated (opened) to the next-lying pusher cylinder 21. Then this thrust cylinder 21 can retract. This process will be consecutive performed until all thrust cylinder (21, 31, 41 see Figure 4) are fully retracted.
- control order is determined at any time by blocking the return oil flow, but always by controlled oil supply.
- the return oil flow is always free both when entering and during extension.
- the larger rear tube 23 is tightly guided in the piston 27 and has at the front end to the seal or guide an extension with radially arranged openings 29, the flow of the piston-side oil through the piston 27 and the piston rod 28 forward in the extended state release.
- the piston 27 in this case has a check valve (273, see Figure 3), which optionally opens at slightly retracted piston 27 when pressurized by the return oil flow from the rod side and the flow to the rear is free.
- FIG. 6 shows a vehicle 200 with a loading crane 101 mounted thereon with a hydraulically actuatable boom 100 with boom extensions.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Jib Cranes (AREA)
- Actuator (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL12712877T PL2683645T3 (en) | 2011-03-10 | 2012-03-09 | Boom of a loading crane |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATGM133/2011U AT12645U1 (en) | 2011-03-10 | 2011-03-10 | CRANE BOOM |
PCT/AT2012/000056 WO2012119169A1 (en) | 2011-03-10 | 2012-03-09 | Loading crane jib |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2683645A1 true EP2683645A1 (en) | 2014-01-15 |
EP2683645B1 EP2683645B1 (en) | 2014-06-04 |
Family
ID=46797312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12712877.5A Active EP2683645B1 (en) | 2011-03-10 | 2012-03-09 | Boom of a loading crane |
Country Status (11)
Country | Link |
---|---|
US (1) | US9718655B2 (en) |
EP (1) | EP2683645B1 (en) |
CN (1) | CN103429522B (en) |
AT (1) | AT12645U1 (en) |
AU (1) | AU2012225180B2 (en) |
BR (1) | BR112013022490A2 (en) |
DK (1) | DK2683645T3 (en) |
ES (1) | ES2498951T3 (en) |
PL (1) | PL2683645T3 (en) |
RU (1) | RU2610898C2 (en) |
WO (1) | WO2012119169A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018080403A1 (en) * | 2016-10-25 | 2018-05-03 | Tajfun Liv, Proizvodnja In Razvoj D.O.O. | Foldable crane |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201321999D0 (en) * | 2013-12-12 | 2014-01-29 | Fella Werke Gmbh | Hydraulic system for automatic sequential cylinder operation |
CN103899585B (en) * | 2014-03-03 | 2016-08-24 | 徐州徐工随车起重机有限公司 | The hydraulic control system of a kind of pair of oil cylinder sequential telescopic, suspension arm mechanism and crane |
CN106536398B (en) * | 2014-06-17 | 2019-07-12 | 株式会社多田野 | The telescopic device of telescopic arm |
ES2527436B2 (en) * | 2014-11-21 | 2015-07-20 | Proytecsa Security, S.L. | Robotic telescopic articulated arm |
CN105605022B (en) * | 2016-03-14 | 2018-06-12 | 三一帕尔菲格特种车辆装备有限公司 | A kind of Multi-cylinder sequential telescopic mechanism and engineering machinery |
CN105864134A (en) * | 2016-04-22 | 2016-08-17 | 三帕尔菲格特种车辆装备有限公司 | Multi-oil-cylinder sequential telescopic system and crane |
CN106395697B (en) * | 2016-08-24 | 2019-10-01 | 浙江鼎力机械股份有限公司 | Expansion joint assembly and aerial work platform |
EP3318530B1 (en) * | 2016-11-03 | 2020-04-01 | National Oilwell Varco Norway AS | Method of upgrading a knuckle-boom crane and a heave-compensating crane |
CN106593993B (en) * | 2016-12-26 | 2018-04-20 | 山河智能装备股份有限公司 | A kind of twin-tub sequential telescopic oil cylinder |
DE102018117630B4 (en) * | 2018-07-20 | 2020-07-09 | Manitowoc Crane Group France Sas | Crane telescope locking device |
CN111153333B (en) * | 2020-01-22 | 2024-07-05 | 徐工消防安全装备有限公司 | Telescopic working arm, telescopic operation device and elevating fire truck |
RU205844U1 (en) * | 2021-04-28 | 2021-08-11 | Открытое акционерное общество "Машиностроительный завод "АРСЕНАЛ" | HYDRAULICALLY OPERATED TELESCOPIC SHIP CRANE BOOM |
EP4389678A1 (en) * | 2022-12-21 | 2024-06-26 | Hiab AB | Hydraulic cylinder assembly, and a crane comprising such assembly |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS60196409A (en) * | 1984-03-16 | 1985-10-04 | Tokyu Car Corp | Stretching device for multistage telescopic boom |
IT1233225B (en) * | 1989-07-21 | 1992-03-20 | Fassi Gru Idrauliche S P A | SEQUENTIAL REMOVAL AND RETURN DEVICE OF CONTROLLED SECTION OF TELESCOPIC ARMS FOR HYDRAULIC CRANES |
US5501346A (en) * | 1991-11-11 | 1996-03-26 | Palfinger Aktiengesellschaft | Multistage telescope boom |
AT398304B (en) * | 1991-11-11 | 1994-11-25 | Palfinger Ag | MULTI-STAGE TELESCOPIC BOOM |
US5355769A (en) * | 1992-07-23 | 1994-10-18 | Magna Pow'r, Inc. | Sequentially operated cylinders with load holding valve integrated system |
EP0743275A2 (en) * | 1995-05-15 | 1996-11-20 | ATLAS WEYHAUSEN GmbH | Method for controlling a multiple telescopic jib and the controlling arrangement for carrying out the method |
SE504463C2 (en) * | 1995-06-08 | 1997-02-17 | Hiab Ab | Extendable arm, especially for taps |
US6029559A (en) * | 1998-04-06 | 2000-02-29 | Grove U.S. L.L.C. | Telescoping system with multiple single-stage telescopic cylinders |
JP4680394B2 (en) * | 2001-01-18 | 2011-05-11 | シーケーディ株式会社 | Sequential cylinder system |
ITTO20010586A1 (en) * | 2001-06-18 | 2002-12-18 | Fassi Gru Idrauliche S P A | PERFECTED DEVICE FOR DISPLACEMENT AND SEQUENTIAL RETURN OF SECTIONS OF TELESCOPIC ARMS OF HYDRAULIC CRANES. |
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TR200902393A2 (en) * | 2009-03-27 | 2009-09-23 | Hi̇drokon Konya Hi̇droli̇k Maki̇na Sanayi̇ Ve Ti̇caret Li̇mi̇ted Şi̇rketi̇ | INNOVATION OF INCLUDED BOM EXTENSION AND REWARING CYLINDER SYSTEM IN CRANES WITH FOLDING BOM |
-
2011
- 2011-03-10 AT ATGM133/2011U patent/AT12645U1/en not_active IP Right Cessation
-
2012
- 2012-03-09 EP EP12712877.5A patent/EP2683645B1/en active Active
- 2012-03-09 BR BR112013022490A patent/BR112013022490A2/en not_active Application Discontinuation
- 2012-03-09 AU AU2012225180A patent/AU2012225180B2/en active Active
- 2012-03-09 WO PCT/AT2012/000056 patent/WO2012119169A1/en active Application Filing
- 2012-03-09 RU RU2013145351A patent/RU2610898C2/en active
- 2012-03-09 ES ES12712877.5T patent/ES2498951T3/en active Active
- 2012-03-09 PL PL12712877T patent/PL2683645T3/en unknown
- 2012-03-09 CN CN201280012499.7A patent/CN103429522B/en active Active
- 2012-03-09 DK DK12712877.5T patent/DK2683645T3/en active
-
2013
- 2013-09-05 US US14/018,765 patent/US9718655B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2012119169A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018080403A1 (en) * | 2016-10-25 | 2018-05-03 | Tajfun Liv, Proizvodnja In Razvoj D.O.O. | Foldable crane |
Also Published As
Publication number | Publication date |
---|---|
DK2683645T3 (en) | 2014-09-15 |
BR112013022490A2 (en) | 2016-12-06 |
WO2012119169A1 (en) | 2012-09-13 |
AT12645U1 (en) | 2012-09-15 |
EP2683645B1 (en) | 2014-06-04 |
RU2013145351A (en) | 2015-04-20 |
AU2012225180A1 (en) | 2013-09-12 |
CN103429522B (en) | 2015-10-21 |
PL2683645T3 (en) | 2014-11-28 |
RU2610898C2 (en) | 2017-02-17 |
US9718655B2 (en) | 2017-08-01 |
US20140001140A1 (en) | 2014-01-02 |
ES2498951T3 (en) | 2014-09-26 |
AU2012225180B2 (en) | 2017-05-18 |
CN103429522A (en) | 2013-12-04 |
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