EP3178992A1 - Finisseur, poutre lisseuse pour un finisseur, et procede d' exploitation - Google Patents

Finisseur, poutre lisseuse pour un finisseur, et procede d' exploitation Download PDF

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Publication number
EP3178992A1
EP3178992A1 EP15198183.4A EP15198183A EP3178992A1 EP 3178992 A1 EP3178992 A1 EP 3178992A1 EP 15198183 A EP15198183 A EP 15198183A EP 3178992 A1 EP3178992 A1 EP 3178992A1
Authority
EP
European Patent Office
Prior art keywords
screed
hydraulic fluid
actuator
segment
flow
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.)
Withdrawn
Application number
EP15198183.4A
Other languages
German (de)
English (en)
Inventor
Lino Giovanoli
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.)
Ammann Schweiz AG
Original Assignee
Ammann Schweiz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ammann Schweiz AG filed Critical Ammann Schweiz AG
Priority to EP15198183.4A priority Critical patent/EP3178992A1/fr
Publication of EP3178992A1 publication Critical patent/EP3178992A1/fr
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/14—Extendable screeds
    • E01C2301/16—Laterally slidable screeds

Definitions

  • the present description relates to a paver according to claim 1. It further relates to a screed for a paver and a method for operating a screed.
  • Extending screed segments are generally arranged on the right and the left side of a base screed which can be displaced in the width direction of the screed relative to the base screed.
  • a pull-out screed segment is typically retractable and extendable by means of a linear actuator.
  • a linear actuator is typically a double-acting hydraulic cylinder Use. In this way it is possible to vary the working width of the screed during an installation process.
  • a pullout screed segment on the left side of the screed and a pullout screed segment on the right side of the screed may be independently adjusted. This makes it possible, for example, not to produce seams or lining connections that do not run exactly in the working direction, or to avoid obstacles such as manhole covers with the screed.
  • a switching valve in black / white valve technology is often used in a particularly simple manner, which only allows to pressurize the hydraulic cylinder with a hydraulic fluid volume flow or not.
  • speed of movement of the pullout-screed segment is often different during retraction and extension, due to the different acted piston surfaces on the piston side and the piston rod side of the hydraulic cylinder, but always constant for a retraction or extension and not variable.
  • the EP 2 325 390 proposes to provide a proportional directional control valve with proportional electrical direct control or proportional electric-hydraulic pilot control for applying the hydraulic cylinder. In this way, the speed of movement of the hydraulic cylinder and thus the pull-screed segment is infinitely adjustable.
  • an operator in practice when operating a screed of in EP 2 352 390 unexpected type of problems expected, resulting inter alia from operational vibration of the control and / or the relative movements between the adjacent operator and the outside control station, and thus complicate a sensitive and precise handling of the control and thus speed control of the pullout segment.
  • the Applicant of the EP 2 352 390 has therefore in the EP 2 599 920 proposed a control panel for a screed, in which the operator a tactile feedback on a transition between two different Speed ranges in the process of extracting screed segment receives.
  • the screed despite the use of complex proportional valve technology, limited to the control of two speed ranges, the actual travel speed within a speed range is variable and difficult to control in practice by the operator in practice.
  • a road paver and a screed and a method for operating the screed of the type mentioned are given.
  • the presently described objects are specified such that, on the one hand, the travel speed of a pull-out screed segment can be variably selected, but in practice the operator is not overwhelmed with setting the travel speed.
  • the stated objects are specified in such a way that, in principle, the use of the expensive proportional valve technology can be dispensed with.
  • a road paver comprising a screed, wherein the screed includes a base pile and at least one pullout screed segment.
  • the pullout screed segment is mounted translationally displaceable on the base board.
  • the base board is held by means of pulling arms on a tractor and is especially in lateral Direction opposite the tractor set.
  • a pull-out screed segment is arranged on the right and left of the base screed. An extendable screed segment can be moved in and out of the screed for width adjustment of the screed.
  • An actuator for displacing the pullout screed segment relative to the base pile is designed and controlled such that the pullout plank segment is movable relative to the base pile during an extension or retraction operation with at least two, and in specific embodiments exactly two, discontinuously selectable discrete speed levels.
  • a screed for a paver comprising a base beam and at least one pullout screed segment retractable and extendable for width adjustment of the screed from the base screed, and further comprising at least one actuator for displacing the pullout screed segment relative to Baseboard comprises, wherein the actuator is designed and controlled such that the Auszieh screed segment during an extension operation or a retraction operation with at least two discontinuously selectable discrete speed levels is movable.
  • the at least one actuator for displacing a pullout screed segment relative to the base pile is according to certain aspects a linear drive.
  • the actuator is a hydraulically actuable actuator in which the force required to move a pullout screed segment is applied by a pressurized hydraulic fluid.
  • the actuator is a hydraulic linear drive, for example a hydraulic cylinder. The use of a double-acting hydraulic cylinder makes it possible to effect retraction and extension of the pullout screed segment from the base pile with the same actuator.
  • a hydraulic control arrangement which allows selective actuation of the actuator with one of at least two and in particular exactly two discontinuously adjustable hydraulic fluid volume flows.
  • a double-acting hydraulic cylinder as an actuator can thus be the case that the selectable retraction speeds are different from the selectable Ausfahr füren. This results from the fact that when the piston side admission for the same travel a larger volume of hydraulic fluid must be supplied as in an impact of the piston rod side.
  • Said hydraulic control arrangement may on the one hand be arranged on the screed itself and be part of the screed, and according to other aspects of the present description may be arranged in the tractor of the finisher.
  • discontinuous selectability or adjustability is to be understood that can be switched suddenly and discontinuously between the at least two Verfahr fürsrasen a pull-screed segment during retraction as well as when extending, or two discrete hydraulic fluid flow rates.
  • there is no ramp of the travel speed or of the volume flow as would be the case when adjusting a proportional control element.
  • the system switches abruptly.
  • the control arrangement comprises at least two, and in particular exactly two, hydraulically parallel flow paths for acting on an actuator, wherein in at least one of said flow paths, a control member is arranged, which enables an enabling and a blocking circuit of said flow path.
  • a hydraulically actuable actuator can be supplied with hydraulic fluid via flow paths with overall different flow cross sections, with which the different hydraulic fluid volume flows can be realized.
  • the said control member may in particular be a switching valve with a discontinuous black / white switching function. It is understood in this context that a flow path for acting on the actuator is connected to a pressure port or is provided for connection to a pressure port.
  • a flow path for acting on the actuator is connected to a pressure connection of a pump or for connection to a pressure connection of a pump. Accordingly, a flow path for loading the actuator is provided, arranged and adapted adapted to supply the actuator with a pressurized hydraulic fluid.
  • Said pump may be a control pump and may in particular be a load pressure controlled control pump.
  • a load pressure on the high-pressure side of a hydraulically actuable actuator and in particular downstream, based on the flow direction of a hydraulic fluid flowing to the actuator, of optionally arranged in the flow path of the hydraulic fluid throttle points is used as the control pressure for the load pressure control of the control pump.
  • the function of said throttling points is explained in more detail below.
  • a throttle point is provided in each of the hydraulically parallel flow paths for acting on an actuator.
  • the throttle point may be designed as a diaphragm.
  • the control arrangement may further comprise a tank connection arrangement.
  • At least one and in particular exactly one of the parallel-connected flow paths is designed without a control element, such that this flow path is always flowed through when moving a pull-screed segment.
  • the control arrangement comprises a control circuit for controlling a hydraulic volume flow supplied to the hydraulically actuable actuator.
  • a method for operating a screed comprises, for displacing a pullout screed segment, supplying a hydraulic fluid volume flow to a hydraulically actuatable actuator and regulating the hydraulic fluid volume flow. This is to be understood as meaning that the respectively selected one of at least two different hydraulic fluid volume flows is regulated to a constant value. This ensures that the traversing speed of the extendable screed segment is kept at a constant value, independent of external resistances, so that the discontinuously selectable speed stages are set in a defined manner.
  • a method for operating a screed comprises, for displacing a pullout screed segment, supplying a hydraulic fluid volume flow to a hydraulically actuable actuator, passing the hydraulic fluid volume flow through at least one throttle point, and regulating the pressure drop across the throttle point.
  • a throttle point is arranged in each of at least two hydraulically connected in parallel flow paths, such that in each acted upon with hydraulic fluid in parallel Flow path of the respective flowing hydraulic fluid flow rate flows through a throttle point.
  • the throttle point is or the throttle points are in exemplary embodiments of the subject described panels, such that the pressure drop across the throttle point is largely independent of the viscosity and thus the temperature of the hydraulic fluid.
  • the pressure drop across each orifice is correlated with the flow of hydraulic fluid through it. In this way, the regulation of the pressure difference via a throttle point, the volume flow, which flows through the throttle point regulated.
  • the total hydraulic fluid volume flow, which is supplied to the hydraulically actuable actuator can then be adjusted by different and / or different numbers of hydraulically connected in parallel flow paths are released for the flow of hydraulic fluid.
  • a control in the above sense is in particular a control in a closed loop
  • the control circuit is in particular a closed loop with a signal feedback.
  • a pressure regulating member which is designed and connected such that an output pressure of the pressure regulating member acts as a first control variable on the pressure regulating member and further wherein a load pressure on a high pressure side of the hydraulically actuable actuator acts as a second control variable to the pressure control member, wherein the second Manipulated variable of the first manipulated variable counteracts.
  • a control variable positively correlated with the respective pressures acts on the pressure control element, for example by detecting a pressure by means of a sensor and a corresponding activation of the pressure control element.
  • Positive correlated in this context means that the manipulated variable increases when the pressure rises.
  • said pressures are guided directly to the pressure regulating member and act, for example, on different sides of a control piston.
  • the pressure control element is controlled by the outlet pressure or with increasing output pressure at the pressure control element, thus reducing the flow, and controlled by the load pressure or with increasing load pressure, so the flow increases.
  • the pressure regulating member is arranged upstream of a branch of the hydraulic fluid flow path for acting on the hydraulically actuable actuator in said at least two hydraulically connected parallel flow paths.
  • the hydraulically parallel flow paths are merged at their downstream ends, and the detection of said load pressure is provided downstream of the junction of the downstream ends of the hydraulic parallel flow paths.
  • control signal of the load pressure an additional signal is superimposed, which acts in the same direction as the control signal of the load pressure.
  • This can for example be done mechanically by a spring bias of an actuator of the pressure regulating member. In this way, a pressure difference between the load pressure and the output pressure of the pressure regulating member is controlled by the pressure regulating member, wherein the load pressure is always lower than the output pressure of the pressure regulating member.
  • At least one throttle point may be arranged in the flow path of a hydraulic fluid volume flow delivered to the hydraulically actuable actuator.
  • a throttle point is arranged in each of the parallel flow paths for acting on the actuator. The pressure drop of a flowing hydraulic fluid via the throttle points is positively correlated with the hydraulic fluid volume flow through the throttle point.
  • embodiments of the road paver described herein or the screed described herein comprising a control arrangement for moving a pullout screed segment, wherein in each of at least two hydraulically connected parallel flow paths for acting on a hydraulically actuable actuator, a throttle body is arranged.
  • a method for operating the screed may comprise, for displacing a pullout screed segment to supply a hydraulic fluid flow to a hydraulically actuable actuator, to direct the flow of hydraulic fluid through a pressure regulating member, hydraulic fluid flow downstream of the pressure control member through at least one of at least two hydraulically To direct parallel flow paths, to direct the hydraulic fluid flow in each flowed through parallel flow path through a throttle point, downstream of the flow-through throttle or the flow-through throttle points tap a load pressure of the hydraulic fluid, and to generate a positively correlated with the load pressure control variable for controlling the pressure regulating member , And thus by means of the pressure regulating member to control the hydraulic fluid flow rate.
  • the hydraulic fluid volume flow increases in particular with the number of flow paths connected in parallel.
  • the load pressure of the hydraulic fluid is returned to the pressure regulating member and used as a control variable for controlling the pressure regulating member, and the output pressure of the pressure regulating member is used as a control variable for controlling the pressure regulating member.
  • the hydraulically actuable actuator has at least two working spaces which can be acted upon by hydraulic fluid. Actuation of at least one first working space with a hydraulic fluid volume flow causes the pull-out screed segment to extend and an application of at least one second working space with a hydraulic fluid volume flow causes the pull-out screed segment to retract. At least one switching element is provided, which allows an optional loading of at least one first working space for extending the pull-screed segment and at least one second working space for retracting the pull-screed segment with a hydraulic fluid volume flow.
  • the at least two hydraulically connected flow paths for acting on the actuator are combined with the hydraulic fluid volume flow upstream of the switching element at their respective downstream ends.
  • the actuator for moving the pullout screed segment is a hydraulically actuated linear actuator, and in particular a double-acting hydraulic cylinder arranged such that one of the piston side and the piston rod side with a hydraulic fluid for extending the pullout screed segment Volumetric flow is applied, and for retracting the Auszieh screed segment, the other of the piston side and the piston rod side of the hydraulic cylinder is acted upon by a hydraulic fluid volume flow.
  • the actuator the screed is in exemplary embodiments, a hydraulically acted actuator.
  • the screed further comprises, in exemplary embodiments, a hydraulic control arrangement, which is designed in accordance with the above-described features relating to a hydraulic control arrangement.
  • the hydraulic control arrangement can also be integrated in the tractor and connected to the hydraulically actuable actuator of the screed. It is also possible that certain components of the control arrangement are arranged in the tractor and other components of the control arrangement on the screed. In other examples, the pump for supplying the screed with a pressurized hydraulic fluid in the tractor is arranged, while the regulating and switching members of the control arrangement are arranged on the screed.
  • the actuator is a hydraulically actuated linear actuator.
  • the actuator is a double-acting hydraulic cylinder, which is arranged such that for extending a Auszieh- Bohlensegments either the piston side or the piston rod side is acted upon by a hydraulic fluid flow, and for retracting the exhaust screed each segment the other side of the hydraulic cylinder with a hydraulic fluid Volume flow is applied.
  • each of the working space of a hydraulically actuable actuator which is not acted upon by a hydraulic fluid flow, is in fluid communication with a tank and / or is depressurized.
  • the method includes, when translating a pullout screed segment relative to a base pile, at least two discrete ones To specify speed levels for the displacement of the pullout screed segment, and further to move the pullout screed segment relative to the base pile at one of the at least two predetermined speed levels, wherein the speed levels are set discontinuously.
  • the speed levels during retraction and extension of the pull-out screed segment are different. This arises in particular when the displacement of a pullout screed segment is effected by means of a hydraulically actuable actuator, and the acted surfaces of the actuator are of different sizes, such as in a double-acting hydraulic cylinder when pressurizing the piston side and the piston rod side.
  • the speed ratios in retracting and extending the pullout plank segment are in proportion to each other inversely proportional to the area ratio of the applied surfaces of a double-acting hydraulic cylinder on the piston side used as an actuator for shifting a pullout segment Piston rod side is.
  • the travel speed in the direction in which the piston rod side is applied when subjected to a certain predetermined hydraulic fluid flow rate, the travel speed in the direction in which the piston rod side is applied, greater than the travel speed in the direction in which the piston side is applied, and behaves inversely proportional to the ratio of acted piston surfaces of the actuator.
  • the method for displacing a pullout screed segment to supply a hydraulic fluid flow to a hydraulically actuable actuator, wherein one of at least two discrete stages of hydraulic fluid flow is discontinuously adjusted.
  • the method may include controlling the hydraulic fluid flow rate supplied to the actuator via at least one of at least two, and in particular of exactly two hydraulically connected parallel flow paths.
  • a throttle point is arranged in each of the hydraulically parallel flow paths. It may be provided, depending on the selected speed level, to release or shut off one or more further hydraulically connected flow paths.
  • the switching operation is discontinuous.
  • the method comprises, to extend the exhaust screed either the piston side or the piston rod side of the hydraulic cylinder with a hydraulic fluid flow rate.
  • the respective other side of the piston side and piston rod side of the hydraulic cylinder with a hydraulic fluid flow rate is applied.
  • the FIG. 1 shows an exemplary, highly schematic, road paver 1, comprising a tractor 10 and a screed 20.
  • the screed 20 is connected by means of pulling arms 11 and 12 to the tractor 10 and is towed during a lining installation of this along the working direction 2 on the ground.
  • the screed 20 includes a base beam 21 and a left extending screed segment 22 and a right extending screed segment 23.
  • the extending screed segments 22 and 23 are laterally slidably connected to the base screed 21.
  • Double-acting hydraulic cylinders 31 and 32 are firmly connected on the piston side with the base board 21, and act on their Piston rods as actuators for moving the pullout screed segments 22 and 23 onto the pullout screed segments.
  • Each of the hydraulic cylinders 31 and 32 is connected to a hydraulic control device via a piston-side hydraulic fluid port 311 and 321 and a piston rod-side hydraulic fluid port 312 and 322, respectively. It is envisaged that the hydraulic control arrangement makes it possible to move the pull-out screed segments 22 and 23 with two discontinuously selectable discrete speed levels relative to the base screed 21.
  • An exemplary suitable hydraulic control arrangement will be explained in more detail below.
  • FIG. 2 shows the left hydraulic cylinder 31. It is readily understood that an arrangement for the right hydraulic cylinder can be constructed completely analog. It is also understood that for moving a Ausziehbohlensegments also more than one hydraulic cylinder can be arranged, all hydraulic cylinders can be controlled in a completely analogous manner to the following explanations.
  • the hydraulic cylinder 31 is connected to a hydraulic control assembly 400 by means of a piston side hydraulic fluid port 311 and a piston rod side hydraulic fluid port 312.
  • the hydraulic control arrangement is shown in a switching position of the switching elements, with which a slow extension of a pullout screed segment is effected.
  • a load pressure controlled pump 501 delivers hydraulic fluid from a tank 502.
  • the hydraulic fluid flows via a pressure regulating member 403 and a first hydraulic fluid flow path 411 to directional switching members 404 and 405.
  • the directional switching member 405 is connected and outputs the Flow of pressurized hydraulic fluid to a pilot-operated check member 407 free.
  • the hydraulic fluid under pressure can flow to the actuating cylinder 31 on the piston side.
  • a piston rod side connected to the actuating cylinder 31 unlockable check member 406 is released such that hydraulic fluid from the piston rod side of the actuating cylinder 31 can flow to the directional switching element 404.
  • the unswitched directional switching member 404 connects the piston rod side fluid port 312 of the actuator cylinder 31 with a return line or tank connection line 415 leading to the tank 502.
  • the first fluid flow path 411 comprises a throttle point 412.
  • a second fluid flow path 413 with a throttle point 414 is arranged.
  • the two parallel flow paths are merged upstream of the directional switching elements 404 and 405, and so both flow paths 411 and 413 are connected to both directional switching devices 404 and 405.
  • the second fluid flow path is shut off in the illustrated switching position for slowly moving a pullout screed segment by the switching member 408.
  • the actuator 31 can flow a pressurized hydraulic fluid exclusively via the first flow path 411 with the throttle 412.
  • All switching elements 404, 405 and 408 are discontinuously switching valves. Via the throttle point 412, the flowing hydraulic fluid experiences a total pressure loss. This total pressure loss is positively correlated with the hydraulic fluid flow rate flowing through, so it rises or falls with this.
  • a shuttle valve 409 directs the highest load applied to the fluid ports of the actuator cylinder load pressure to a load pressure control line 416, which leads on the one hand to the pump 501. On the other hand, the load pressure is also guided to the pressure regulating member 403.
  • the pressure provided by the pump 501 is always higher than the pressure in the load pressure control line by a certain predetermined amount.
  • the pressure regulating member 403 is connected such that on the one hand, the output pressure of the pressure regulating member acts as a control variable on the pressure regulating member. In this case, the pressure regulating member 403 is controlled by the output pressure.
  • the load pressure from the load pressure line 416 counteracts the output pressure as a second manipulated variable.
  • the pressure regulating member 403 is turned on by the load pressure. Furthermore, the pressure regulating member is spring-loaded in the opening direction.
  • the pressure regulating member 403 regulates a constant differential pressure, However, this pressure difference corresponds, apart from other unavoidable flow pressure losses, the pressure drop across the throttle 412. In this way, by the pressure control member 403 of the hydraulic cylinder through the first Fluid flow path inflowing hydraulic fluid volume flow regulated. The greater the spring force acting on the control element 403, the greater is the said pressure difference, and the greater the volume flow flowing through a throttle point to the hydraulic actuating cylinder 31.
  • the switching element 408 is energized and are in the illustrated switched position the second flow path 413 in addition to the first flow path 411 free.
  • the hydraulic fluid flowing in to the hydraulic actuating cylinder 31 can now flow via both flow paths 411 and 413 or through both throttle points 412 and 414, for which reason a larger volume flow is conducted to the actuator 31 at the same pressure loss.
  • moving the pull-out screed segment at a greater speed than in the FIG. 2 illustrated switching position it should be noted that, since the switching device 408 is a discontinuous switching element, the switching takes place discontinuously and without intermediate stages.
  • the directional switching element 404 is energized and releases the inflow of pressurized hydraulic fluid to the piston rod side working space of the actuator 31.
  • the pressure of the hydraulic fluid controls the pilot-operated check member 407.
  • the directional switching element 405 is not connected and connects the piston-side working space of the actuator 31 via the released check member 407 with the return line 415 and thus with the tank 502.
  • the switching member 408 is not designed and blocks the flow path 413. Pressurized hydraulic fluid may flow via the first flow path 411 of the piston rod side of the actuator cylinder 31, and thus retraction of a pullout screed segment is effected.
  • the switching element 408 is connected and releases the second, parallel-connected flow path 413 in addition to the flow path 411. In this way, in turn, a larger volume flow to the piston rod side of the actuating cylinder 31 flow, and the retraction of a pullout screed segment is carried out at a higher speed.
  • the hydraulic switching arrangement 400 can be arranged both directly on the screed and in the tractor of the paver.
  • the pump 501 may typically be located in the tractor and driven by its power plant.
  • the switching and control elements can be arranged both in the tractor and on the screed.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
EP15198183.4A 2015-12-07 2015-12-07 Finisseur, poutre lisseuse pour un finisseur, et procede d' exploitation Withdrawn EP3178992A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15198183.4A EP3178992A1 (fr) 2015-12-07 2015-12-07 Finisseur, poutre lisseuse pour un finisseur, et procede d' exploitation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15198183.4A EP3178992A1 (fr) 2015-12-07 2015-12-07 Finisseur, poutre lisseuse pour un finisseur, et procede d' exploitation

Publications (1)

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EP3178992A1 true EP3178992A1 (fr) 2017-06-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115075096A (zh) * 2021-03-12 2022-09-20 约瑟夫福格勒公司 具有调平级联控制的道路整修机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2325390A1 (fr) 2009-10-20 2011-05-25 Joseph Vögele AG Poutre lisseuse et finisseuse de route
EP2352390A1 (fr) 2008-11-04 2011-08-10 Natural Bits Food Design Ltd. Produits semi-solides à base de miel
EP2599920A1 (fr) 2011-12-01 2013-06-05 Joseph Vögele AG Finisseuse de route
US20130258567A1 (en) * 2012-03-29 2013-10-03 Joseph Voegele Ag External control stand for a construction machine
DE202013009113U1 (de) * 2012-10-30 2013-11-07 Caterpillar Paving Products Inc. (n.d.Gesetzen d.Staates Oklahoma) Geschwindigkeitssteuerung für Ausfahrbohle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2352390A1 (fr) 2008-11-04 2011-08-10 Natural Bits Food Design Ltd. Produits semi-solides à base de miel
EP2325390A1 (fr) 2009-10-20 2011-05-25 Joseph Vögele AG Poutre lisseuse et finisseuse de route
EP2599920A1 (fr) 2011-12-01 2013-06-05 Joseph Vögele AG Finisseuse de route
US20130258567A1 (en) * 2012-03-29 2013-10-03 Joseph Voegele Ag External control stand for a construction machine
DE202013009113U1 (de) * 2012-10-30 2013-11-07 Caterpillar Paving Products Inc. (n.d.Gesetzen d.Staates Oklahoma) Geschwindigkeitssteuerung für Ausfahrbohle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115075096A (zh) * 2021-03-12 2022-09-20 约瑟夫福格勒公司 具有调平级联控制的道路整修机

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