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EP3550075B1 - Table de pose avec un dispositif de verrouillage et finisseur de route équipé d'une telle table de pose - Google Patents

Table de pose avec un dispositif de verrouillage et finisseur de route équipé d'une telle table de pose Download PDF

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Publication number
EP3550075B1
EP3550075B1 EP18000318.8A EP18000318A EP3550075B1 EP 3550075 B1 EP3550075 B1 EP 3550075B1 EP 18000318 A EP18000318 A EP 18000318A EP 3550075 B1 EP3550075 B1 EP 3550075B1
Authority
EP
European Patent Office
Prior art keywords
hydraulic cylinder
screed
lower frame
paving screed
upper frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18000318.8A
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German (de)
English (en)
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EP3550075A1 (fr
Inventor
Jürgen Heusinger
Eric Schmidt
Marco Baioni
Peter Stein
Niels Laugwitz
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.)
Bomag GmbH and Co OHG
Original Assignee
Bomag GmbH and Co OHG
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 Bomag GmbH and Co OHG filed Critical Bomag GmbH and Co OHG
Priority to EP18000318.8A priority Critical patent/EP3550075B1/fr
Priority to PCT/EP2019/000108 priority patent/WO2019192752A1/fr
Publication of EP3550075A1 publication Critical patent/EP3550075A1/fr
Application granted granted Critical
Publication of EP3550075B1 publication Critical patent/EP3550075B1/fr
Active legal-status Critical Current
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Classifications

    • 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 invention relates to a paving screed for a road paver. Moreover, the invention relates to a road paver with such a paving screed.
  • Road pavers are used in the construction of roads, squares as well as e.g. airfield runways.
  • the road pavers in question are usually self-propelled construction machines that are used for producing carriage surfaces of paving material, e.g. asphalt, concrete or the like, and paving the same on site.
  • the paving material is delivered by truck and loaded into a receptacle on the front side of the road paver. From here the paving material is transported by means of a suitable longitudinal conveying device to the rear end of the paver.
  • the road pavers move forward in a working direction while distributing the paving material by means of a lateral conveying device connected to the longitudinal conveying device, viewed in the working direction, over the entire paving width.
  • a paving screed is connected to the rest of the road paver via towing arms.
  • the often heated paving screed can have e.g. a smoothing plate with which the paving material is smoothed.
  • the paving screed typically also has tamping bars that effect a compaction of the paving material.
  • the main function of the paving screed of a road paver is thus the even distribution, the smoothing and the pre-compaction of the paving material during a paving operation in a floating manner over the paving material.
  • the paving screeds further typically comprise a linear actuator, such as cograil with a cog or a spindle drive comprising a threaded spindle and a female thread, for the height adjustment of the lower frame relative to the upper frame, wherein the linear actuator, for example the spindle drive, is configured to adjust the lower frame vis-à-vis the upper frame on a vertical plane and is thus usually arranged between the upper and the lower frame.
  • a height-adjustment device for driving the linear actuator e.g. a hydraulic or electric motor, is provided.
  • a locking device that is configured to lock the lower frame in its position relative to the upper frame.
  • a paving screed for a road paver is e.g. described in DE 100 36 784 C1 , which provides for the pressing of an extendable screed part by means of a clamp laterally against the side of the basic screed, thus preventing a height modification.
  • a further example is disclosed in CN 102 926 313 B .
  • this means of immobilization requires a comparatively large number of components, e.g. separate spring preloaded screws, which render the assembly of the paving screed more complicated.
  • the solution is specifically achieved with a paving screed as described above in which the locking device is connected to the upper frame and to the lower frame and comprises an essentially vertically oriented hydraulic cylinder configured to exert a clamping force on the linear actuator in a direction at least partially parallel to the direction of adjustment of the linear actuator so that a frictional connection is created in the linear actuator, which blocks the linear actuator.
  • the locking device is connected to the upper frame and to the lower frame and comprises an essentially vertically oriented hydraulic cylinder configured to exert a clamping force on the linear actuator in a direction at least partially parallel to the direction of adjustment of the linear actuator so that a frictional connection is created in the linear actuator, which blocks the linear actuator.
  • the linear actuator is a spindle drive comprising a threaded spindle and a female thread, so that the locking device is connected to the upper frame and to the lower frame and comprises an essentially vertically oriented hydraulic cylinder that is configured to exert a clamping force on the spindle drive at least partially parallel to the direction of adjustment of the spindle drive so that a frictional connection is created between the threaded spindle and the female thread, which prevents an adjustment of the spindle drive.
  • the linear actuator will be described as a spindle driveAn essential idea of the invention is thus that the immobilization of the lower frame in its position relative to the upper frame occurs by means of a locking device acting directly at the spindle drive as a result of the fact that the threaded spindle and the female thread are pressed against one another in such a manner that they block each other's movement and traction is created in the thread of the spindle drive.
  • the free play of the spindle drive in one direction is completely exhausted this way so that, by means of the action of the thread, a height modification, no matter how small, of the upper frame relative to the lower frame is no longer possible.
  • the locking device in accordance with the invention thus jams the thread of the threaded spindle with the female thread.
  • the guide comprises an outer sleeve, an inner sleeve mounted in a sliding manner in the outer sleeve and a screw mounted in the sleeves and connected to the hydraulic cylinder and the lower frame.
  • the drive screw can be configured in such a manner that it engages the lower frame in a form-fit connection when the hydraulic cylinder is extended or retracted and thus transmits the clamping force of the hydraulic cylinder to the lower frame and thus also indirectly to the spindle drive.
  • the screw is completely surrounded e.g. in the space between the upper frame and the lower frame by the sleeves.
  • the guide thus also constitutes a housing for the screw.
  • the hydraulic cylinder itself can also be mounted at least partially in one of the two sleeves.
  • the guide comprises an outer sleeve and that the hydraulic cylinder is mounted at least partially in an outer sleeve.
  • the hydraulic cylinder is mounted either on the upper frame or on the lower frame in a fixed manner, while the other end of the hydraulic cylinder is movable vis-à-vis the upper and/or lower frame.
  • this movable end of the hydraulic cylinder is then at least partially mounted in the outer sleeve in such a way that the movement of the hydraulic cylinder is directed in a direction that is essentially parallel to the direction of adjustment of the spindle drive.
  • the hydraulic cylinder itself is also a part of the guide.
  • a particularly precise guiding of the hydraulic cylinder in the outer sleeve is achieved when the hydraulic cylinder comprises a slide bearing and is mounted with the sliding bearing in the outer sleeve in a sliding fashion.
  • the hydraulic cylinder can have an annular projection corresponding to the width of the sleeve so that the hydraulic cylinder can be arranged with this sliding bearing in the sleeve.
  • the sliding bearing of the hydraulic cylinder is in contact with the inner surface of the sleeve.
  • the arrangement of the hydraulic cylinder on the paving screed can be varied. Further elements of the paving screed can thus be taken into consideration by arranging the hydraulic cylinder in places where there is sufficient installation space available. For example, it is possible to arrange the hydraulic cylinder outside of the space between the upper frame and the lower frame, in particular completely outside of this space. The transmission of force from the hydraulic cylinder to the upper frame and/or the lower frame can then occur e.g. indirectly via a space-saving, thin constructional element, e.g. a screw or the like. This way, the amount of space available for additional components in the space between the upper frame and the lower frame of the paving screed is greatly increased.
  • the hydraulic cylinder essentially completely in the area between the upper frame and the lower frame.
  • the hydraulic cylinder may be arranged in the area between the upper and the lower frame in such a way that it does not protrude beyond the paving screed.
  • the hydraulic cylinder may end in such a manner that it is flush with the upper and/or lower frame. This embodiment is particularly compact and has the advantage that the paving screed can be made as small as possible.
  • the height at which the smoothing plate smooths the paving material is not the only variable to be set via the adjustment of the lower frame of the paving screed.
  • the angle of the lower frame to the horizontal plane is also set to a desired value, which e.g. can be different as a function of the paving material.
  • at least two spindle drives may be arranged behind one another in the working direction on the paving screed. A different adjustment of the spindle drives thus leads to an adjustment of the angle of application, i.e. the angle of the underside of the lower frame relative to the horizontal plane.
  • paving screeds often comprise several screed segments.
  • one or several add-on screed parts can be attached to a basic screed in order to increase the paving width of the road paver.
  • extendable screed parts can be attached to the basic screed or to add-on screed parts.
  • Such extendable screeds can be modified dynamically in their working width during the operation of the screed.
  • These extendable screeds have an upper frame and a lower frame. Here it is particularly important that the rear edge of the lower frame of the movable part is set in the same vertical position as the rear edge of the fixed part of the extendable screed in order to avoid that an unevenness is created in the surface layer left behind by the paving screed.
  • Each extendable screed segment typically thus has a height-adjustment device in the form of at least one spindle drive. All of these spindle drives must naturally be locked against any height modification during the operation of the paving screed. It is thus preferably provided that the paving screed comprises a basic screed and at least one add-on and/or extendable screed and that each extendable screed comprises a locking device.
  • the locking device is configured as described above. The invention can thus be used with paving screeds that have several segments.
  • the invention also relates to a road paver with a paving screed as described above.
  • the object of the present invention is also realized with such a road paver. Accordingly, all features and advantages of the paving screed described above also apply to the road paver. In order to avoid repetition, reference is made to the explanations given above.
  • the paving screed 7 By means of the paving screed 7, a smoothing and a pre-compaction of the paving material is carried out so that a surface layer is created behind the road paver 1, which in some cases has to be compacted.
  • the paving screed 7 has an upper frame 14 and a lower frame 15.
  • FIGS 2 and 3 show a road paver 1 in a top view.
  • the paving screed 7 of the road paver 1 in accordance with Figure 2 comprises a basic screed 9 as well as two extendable screed segments 10 attached to the tractor of the road paver 1 via towing arms 8.
  • the extendable screed segments 10 are shown in a retracted position.
  • Each of the extendable screed segments 10 of the road paver 1 comprise two locking devices 23, which are described below in more detail.
  • the locking devices 23 are connected to a control device 13 via a control line 12.
  • the control device 13 is located on the operating platform 2 of the road paver 1. Using the control device 13, the operator can enter control commands for the locking devices 23.
  • the control device 13 is coupled e.g.
  • control device 13 can also be connected to a sensor sensing the state of the locking devices 23.
  • a pressure sensor sensing the pressure in the hydraulic cylinders of the locking devices 23 can be used.
  • the control device 13 can thus be used to make sure that paving can only start when the sensor confirms the activation of the locking devices 23, which makes sure that no inadvertent displacement of the screed occurs.
  • the extendable screed segments 10 of the road paver 1 have a height adjustment device in the form of a spindle drive on both sides so that a locking device 23 is also provided on both sides.
  • FIG. 3 shows a road paver 1 with a paving screed 7 in which the extendable screed segments 10 are in a state of maximum extension.
  • the same configuration results when add-on segments whose working width cannot be adjusted in combination with extendable add-on screed segments at the outer sides are used in accordance with a further embodiment.
  • the extendable screed segments 10 also have at least one locking device 23 in order to immobilize their respective lower frames 15 vis-à-vis their upper frames 14. All locking devices 23 are connected via control lines 12 to the control device 13, by means of which all locking devices can be controlled, in particular simultaneously.
  • the control of the locking devices 23 occurs in particular in coordination with the control of the height adjustment device of the screed segments. However, separate control of the locking devices 23 via the control device 13 is also possible. For example, the user can unlock the locking devices 23 while the height adjustment device is not operating to adjust the angle of attack of the mobile frames of the paving screed 7.
  • Figure 4 shows essential elements of the screed segment of the paving screed 7 in a longitudinal sectional view through the paving screed 7.
  • An upper frame 14 is connected to a lower frame 15 via a height-adjustment device configured as a spindle drive 19.
  • the upper frame 14 comprises connecting elements 33, with which the upper frame 14 is attached via a guiding system to a basic screed 9 or to further add-on segments of the paving screed 7.
  • the lower frame 15 comprises, among other things, the smoothing plate 32, with which the paving material is smoothed during the working operation of the road paver 1.
  • the lower frame 15 is height-adjustable relative to the upper frame 14 via the spindle drives 19.
  • the paving screed 7 in accordance with Figure 4 further comprises two locking devices 23 each with a hydraulic cylinder 20 mounted on the upper frame 14 and the lower frame 15 by means of joints, in the case shown in the form of pivot bearings 34.
  • the hydraulic cylinder 20 runs essentially vertically and in a direction parallel to the spindle drives 19.
  • a clamping force can be exerted on the spindle drives 19, which presses the threads of the spindled drives 19 together in such a manner that a height adjustment of the lower frame 15 vis-à-vis the upper frame 14 is prevented by means of the frictional connection created.
  • the hydraulic cylinder 20 comprises connections to connect to the hydraulic system of a road paver 1.
  • the hydraulic circuit of the hydraulic cylinder 20 can also comprise load retention valves or load-holding valves. These valves avoid uncontrolled pressure drops in the hydraulic cylinders 20 due to leakages, failure of hoses or the like.
  • the screed segment of the paving screed 7 shown has two height-adjustment devices in the form of two spindle drives 19.
  • a locking device 23 is provided for each of the respective height-adjustment devices.
  • the locking devices 23 are also located at the respective lateral ends of the screed segment of the paving screed 7.
  • the locking devices 23 can be arranged in any position on the screed segment. However, it is preferred to arrange the locking devices 23 in the area of or close to the height-adjustment devices or spindle drives 19.
  • the locking device 23 of Figure 5 comprises a double-acting hydraulic cylinder 20 extending between the upper frame 14 and the lower frame 15.
  • the hydraulic cylinder 20 has two supply lines 24 for hydraulic fluid, e.g. hydraulic oil.
  • the embodiment of the locking device 23 with a double-acting hydraulic cylinder 20 has the advantage that the clamping force of the hydraulic cylinder can press the upper and lower frame 14, 15 both toward one another as well as away from one another.
  • the hydraulic cylinder 20 can also be used for supporting the height adjustment or the adjustment of the position of the upper frame 14 relative to the lower frame 15 via the spindle drives 19.
  • the spring 25 generates a tensional force that pulls the upper frame 14 and the lower frame 15 toward one another so that a clamping force is created at the spindle drives 19.
  • unlocking occurs by expanding the spring 25 by means of the introduction of hydraulic fluid into the hydraulic cylinder 20. Since the clamping force is created passively by the spring 25 in this embodiment in accordance with Figure 8 , the road paver 1 does not need to apply hydraulic pressure actively at the hydraulic cylinder 20 in order to ensure a locking of the height adjustment of the paving screed. A corresponding locking is thus also reliably ensured when the road paver 1 is turned off.
  • Figure 9 shows a schematic section through a height-adjustment device with two spindle drives 19 and a locking device 23.
  • Such combinations of a height-adjustment device and a locking device 23 can be provided singly or repeatedly on each extendable paving screed segment of the paving screed 7.
  • Such combinations are arranged in the respective lateral end areas of the extendable screed segments so that each screed segment comprises two locking devices 23 and four spindle drives 19.
  • the upper frame 14 is connected to the lower frame 15 by means of the spindle drives in a height-adjustable manner.
  • Both spindle drives 19 are arranged spaced apart from one another in the working direction a and can thus be used both for the height adjustment of the upper frame 14 relative to the lower frame 15 as well as for the setting of the angle of application of the lower frame 15 with respect to the paving material or a horizontal plane.
  • the spindle drives 19 each comprise a threaded spindle 30 and a female thread 31 threaded on the threaded spindle 30. Both the threaded spindle 30 as well as the female thread 31 have an intermeshing thread.
  • the spindle 30 is turned by means of a driving means 17 so that the threaded spindle 30 moves in a linear fashion through the female thread 31. This way, the position of the lower frame 15 can be adjusted relative to the upper frame 14.
  • the hydraulic cylinder 20 thus presses the upper frame 14 and the lower frame 15 toward one another and thus creates a clamping force on the spindle drives 19 or on the intermeshing threaded spindle 30 and female thread 31. By means of the frictional or friction-locked connection thus created, a height adjustment of the spindle drives 19 is blocked.
  • Figure 10 shows a view analogous to the one shown in Figure 9 with a different embodiment.
  • Figure 10 shows specifically an alternative embodiment of the locking device 23.
  • the hydraulic cylinder 20 of the locking device 23 is attached to the upper frame 14, it is, however, located in the area between the upper frame 14 and the lower frame 15.
  • the hydraulic cylinder 20 does not protrude over the upper frame 14 and the lower frame 15.
  • the hydraulic cylinder 20 is connected to a straining screw 27, which, analogous to the screw 21 of Figure 9 , is moved by the hydraulic cylinder 20 and engages in a form-fit connection with the lower frame 15 when the hydraulic cylinder 20 contracts.
  • the embodiment according to Figure 10 also has a guide 26.
  • this comprises the hydraulic cylinder 20 itself, which is mounted at least partially within the outer sleeve 22.
  • the outer sleeve 22 is attached to the lower frame 15 and extends into the area between the upper frame 14 and the lower frame 15.
  • the hydraulic cylinder 20 comprises a sliding bearing 28 with which it fits against the inside of the outer sleeve 22 and is mounted in a sliding manner inside the latter.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)

Claims (13)

  1. Table (7) de finisseur pour un finisseur routier (1), comprenant
    - un châssis supérieur (14),
    - un châssis inférieur (15) monté sur le châssis supérieur (14) de manière réglable en hauteur,
    - un actionneur linéaire configuré pour régler verticalement le châssis inférieur (15) par rapport au châssis supérieur (14),
    - un mécanisme (16) de réglage de la hauteur configuré pour entraîner l'actionneur linéaire, et
    un dispositif de verrouillage (23) configuré pour immobiliser le châssis inférieur (15) dans sa position en relation avec le châssis supérieur (14),
    caractérisée en ce que
    le dispositif de verrouillage (23) est relié au châssis supérieur (14) et au châssis inférieur (15) et comprend un vérin hydraulique (20) orienté sensiblement verticalement, configuré pour exercer une force de serrage sur l'actionneur linéaire dans une direction parallèle, au moins en partie, à la direction de réglage de l'actionneur linéaire, de sorte qu'une liaison par friction est créée dans l'actionneur linéaire, qui bloque l'actionneur linéaire, et
    l'actionneur linaire est un entraînement à vis sans fin (19), comprenant une vis filetée (30) et un filetage femelle (31), le vérin hydraulique (20) étant configuré pour exercer une force de serrage sur l'entraînement à vis sans fin (19) dans une direction parallèle, au moins en partie, à la direction de réglage de l'entraînement à vis sans fin (19), de sorte qu'une liaison par friction est créée entre la vis filetée (30) et le filetage femelle (31), qui bloque l'entraînement à vis sans fin (19).
  2. Table (7) de finisseur selon la revendication 1,
    caractérisée en ce que
    le vérin hydraulique (20) est simple effet.
  3. Table (7) de finisseur selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    le vérin hydraulique (20) comprend un ressort (25) qui pré-charge le vérin hydraulique (20) de telle sorte que la pré-charge du ressort crée une force de serrage parallèle à la direction de réglage de l'actionneur linéaire.
  4. Table (7) de finisseur selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    le vérin hydraulique (20) est fixé au châssis supérieur (14) et/ou au châssis inférieur (15) au moyen d'un joint, en particulier un palier pivotant (34).
  5. Table (7) de finisseur selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    un guide (26) est présent qui guide un mouvement provoqué par le vérin hydraulique (20) dans une direction sensiblement parallèle à la direction de réglage de l'actionneur linéaire.
  6. Table (7) de finisseur selon la revendication 5,
    caractérisée en ce que
    le guide (26) comprend un manchon extérieur (22), un manchon intérieur (29) installé dans le manchon extérieur (22) de manière coulissante, et une vis (21) installée dans les manchons (22, 29) et raccordée au vérin hydraulique (20) et au châssis inférieur (15).
  7. Table (7) de finisseur selon la revendication 5,
    caractérisée en ce que
    le guide (26) comprend un manchon extérieur (22) et en ce que le vérin hydraulique (20) est installé, au moins en partie, dans le manchon extérieur (22).
  8. Table (7) de finisseur selon la revendication 7,
    caractérisée en ce que
    le vérin hydraulique (20) comprend un palier coulissant (28) et est installé avec le palier coulissant (28) d'une manière coulissante dans le manchon extérieur (22).
  9. Table (7) de finisseur selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    le vérin hydraulique (20) est disposé à l'extérieur de la zone située entre le châssis supérieur (14) et le châssis inférieur (15).
  10. Table (7) de finisseur selon l'une quelconque des revendications 1 à 7,
    caractérisée en ce que
    le vérin hydraulique (20) est disposé sensiblement intégralement dans la zone située entre le châssis supérieur (14) et le châssis inférieur (15).
  11. Table (7) de finisseur selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    le vérin hydraulique (20) est disposé entre deux actionneurs linéaires, par exemple des entraînements à vis sans fin (19), disposés l'un derrière l'autre dans la direction de progression (a) de la table (7) de finisseur.
  12. Table (7) de finisseur selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    la table (7) de finisseur comprend une table de base (9) et au moins une table (10) complémentaire et/ou extensible, et en ce que chaque table extensible (10) comprend un dispositif de verrouillage (23).
  13. Finisseur routier (1) avec une table (7) de finisseur selon l'une quelconque des revendications précédentes.
EP18000318.8A 2018-04-03 2018-04-03 Table de pose avec un dispositif de verrouillage et finisseur de route équipé d'une telle table de pose Active EP3550075B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18000318.8A EP3550075B1 (fr) 2018-04-03 2018-04-03 Table de pose avec un dispositif de verrouillage et finisseur de route équipé d'une telle table de pose
PCT/EP2019/000108 WO2019192752A1 (fr) 2018-04-03 2019-04-03 Poutre lisseuse de pavage dotée d'un dispositif de verrouillage et finisseuse équipée d'un tel dispositif de pavage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18000318.8A EP3550075B1 (fr) 2018-04-03 2018-04-03 Table de pose avec un dispositif de verrouillage et finisseur de route équipé d'une telle table de pose

Publications (2)

Publication Number Publication Date
EP3550075A1 EP3550075A1 (fr) 2019-10-09
EP3550075B1 true EP3550075B1 (fr) 2020-10-14

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Application Number Title Priority Date Filing Date
EP18000318.8A Active EP3550075B1 (fr) 2018-04-03 2018-04-03 Table de pose avec un dispositif de verrouillage et finisseur de route équipé d'une telle table de pose

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Country Link
EP (1) EP3550075B1 (fr)
WO (1) WO2019192752A1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10036784C1 (de) 2000-07-28 2001-09-20 Abg Allg Baumaschinen Gmbh Einbaubohle für einen Straßenfertiger
CN102926313B (zh) * 2012-11-20 2014-12-24 中联重科股份有限公司 熨平板高差调节装置、摊铺机及熨平板高差调节方法

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EP3550075A1 (fr) 2019-10-09
WO2019192752A8 (fr) 2019-12-19
WO2019192752A1 (fr) 2019-10-10

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