EP3719206B1 - Dispositif de commande pour un dispositif de compactage du sol - Google Patents

Dispositif de commande pour un dispositif de compactage du sol Download PDF

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Publication number
EP3719206B1
EP3719206B1 EP20162351.9A EP20162351A EP3719206B1 EP 3719206 B1 EP3719206 B1 EP 3719206B1 EP 20162351 A EP20162351 A EP 20162351A EP 3719206 B1 EP3719206 B1 EP 3719206B1
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EP
European Patent Office
Prior art keywords
operating element
control device
latching
pressure piece
recess
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
EP20162351.9A
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German (de)
English (en)
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EP3719206A1 (fr
Inventor
Ferdinand Rupp
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.)
Wacker Neuson Produktion GmbH and Co KG
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Wacker Neuson Produktion GmbH and Co KG
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Publication of EP3719206A1 publication Critical patent/EP3719206A1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • E02D3/074—Vibrating apparatus operating with systems involving rotary unbalanced masses
    • 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
    • E01C19/22—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 consolidating or finishing laid-down unset materials
    • E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
    • E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
    • E01C19/40—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers
    • E01C19/402—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers the tools being hand-guided
    • 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

Definitions

  • the invention relates to a control device for a soil compacting device.
  • Hand-guided, reversible vibrating plates are known in particular as such a soil compacting device.
  • Such vibrating plates have a ground contact plate on which an unbalance exciter is mounted, which has, for example, two counter-rotating imbalance shafts, which can be set in opposite directions by a drive.
  • the rotation of the imbalance shafts in the imbalance exciter generates vibrations that can be used in a known manner for soil compaction.
  • a longitudinally extending drawbar is provided on the vibrating plate, at the end of which (drawbar head) there is a switching bracket, via which an operator can not only steer and guide the vibrating plate, but also adjust the running direction of the vibrating plate.
  • imbalance exciters are known in which the relative phase position of the acting imbalance shafts can be changed to one another in order to change the effective direction of the resulting vibration vectors.
  • the running direction of the vibration plate can be determined depending on whether a resulting vibration vector is directed in the forward direction or in the reverse direction.
  • the switchover bar belonging to a control device for the vibration plate is generally very stable and on the one hand enables the operator to guide and steer the vibration plate.
  • the switching bracket is designed as a large hand lever and can be pivoted relative to the tiller head to which it is attached. By pivoting the switching bracket relative to the tiller head, a hydraulic signal is generated which can be transmitted to the imbalance exciter in the vibration plate in order to determine or change the phase position of the counter-rotating imbalance shafts in a known manner.
  • the running direction (forwards, backwards) of the vibration plate can be adjusted with the help of the switching bracket.
  • Fig. 12 shows an example of such a known control device for a vibrating plate.
  • a tiller head At the end of a tiller, not shown, there is a tiller head with a control housing 1 on which a switching bracket serving as an operating element 2 is pivotally mounted.
  • the switching bracket 2 can be pivoted about an axis 3 relative to the control housing 1 .
  • a master piston 4 is arranged in the interior of the control housing 1 and can be moved back and forth axially in a master cylinder 5 formed in the interior of the control housing 1 .
  • a piston rod 6 which carries a toothed rack 7 is formed as part of the master piston 4 or in its axial extension.
  • the rack 7 meshes with a pinion 8 which is fixed on the axle 3.
  • a pivoting of the switching bracket 2 causes a rotation of the pinion 8 and thus a linear displacement of the toothed rack 7, the piston rod 6 and the master piston 4.
  • a cylinder chamber 9 is provided on the front side in front of the master piston 4 and can be filled with a hydraulic fluid.
  • the cylinder chamber 9 is connected via a hydraulic connection 10 and a hydraulic line, not shown, to a corresponding slave cylinder or slave piston in an imbalance exciter, also not shown, of the vibration plate. Due to the hydraulic coupling of the cylinder chamber 9 to the imbalance exciter, an adjustment or displacement of the master piston 4 thus causes a corresponding twisting of the imbalance shafts or imbalance masses in the imbalance exciter, not shown. As a result, the phase position of the counter-rotating imbalance shafts can be adjusted.
  • the resultant force vector of the imbalance exciter and thus the running direction of the vibration plate can thus be adjusted with the aid of the switching bracket 2 .
  • the master piston 4 is in its foremost position and accordingly the cylinder chamber 9 has only a very small volume.
  • the cylinder chamber 9 resembles a thin cylindrical disk.
  • a spring 11 which pushes the master piston 4 into the in 1 position shown presses or supports a movement in this direction to the located in the cylinder chamber 9 Press out hydraulic fluid via the hydraulic connection 10. Due to their inertia, the imbalance shafts or imbalance masses rotating in the imbalance exciter cause a restoring torque that acts on the hydraulic device in the imbalance exciter and must be held by the master piston 4 . In other words, the restoring torque causes a force on the master piston 4, which forces it out of the 1 shown maximum position. This force must be held by master piston 4 to maintain maximum forward travel.
  • the spring 11 has a supporting effect so that the holding force on the master piston 4 does not have to be applied exclusively by the operator via the operating lever 2 .
  • the switching bracket 2 can be pivoted backwards, in the direction of arrow R, by a specific angle, e.g. 40 degrees.
  • the pinion 8 is then rotated and also pulls the piston rod 6 and the master piston 4 back in the direction of arrow R via the toothed rack 7 .
  • This increases the volume in the cylinder chamber 9 and hydraulic fluid is admitted via the hydraulic connection 10 .
  • the imbalance shafts in the imbalance exciter which are connected via the communicating hydraulics, can rotate with regard to their rotational position and phase position, so that ultimately the vibration plate can move backwards as far as possible.
  • the switching bar 2 is in the middle, ie between the maximum forward drive and the maximum reverse drive, the so-called stationary vibration occurs, in which the vibrating plate vibrates standing on the spot in order to bring about local compaction. Between the extreme positions of the switching bracket 2, any intermediate positions are steplessly possible.
  • the spring 11 which supports the movement of the master piston 4 against the hydraulic pressure in the cylinder chamber 9 inherent to the principle.
  • the spring force of the spring 11 can be designed in such a way that when the switching bracket 2 is released, a stationary vibration is automatically set, ie the vibrating plate automatically brings its feed movement to a standstill.
  • Such a control device is, for example, from DE 40 16 822 A1 famous.
  • control device described has proven very effective in practice and is particularly suitable for inexperienced drivers, since the machine always moves in the direction in which the operator is holding the switch bar.
  • a control device for a vibratory roller on which a latchable operating lever with a neutral center position and a driving position for forward and reverse travel is arranged.
  • the invention is based on the object of specifying a control device for a soil compaction device, through which the soil compaction device, in particular a vibrating plate, can be operated at full forward travel, even if the operator has released a corresponding operating element. It should be possible for the operator to actuate the control element provided for him at any time in order to control the machine and, in particular, to stop it or drive it in reverse.
  • the control device should at least enable the precise setting of a center position for stationary vibration of the soil compacting device.
  • a control device with the features of claim 1.
  • Advantageous configurations are specified in the dependent claims.
  • a vibrating plate serving as a soil compacting device equipped with the control device is provided.
  • a control device for a soil compacting device is specified, with a movable operating element for specifying a running direction of the soil compacting device by an operator; with a hydraulic master device, with a master cylinder in which a master piston can be moved back and forth linearly, for generating a hydraulic signal; with a hydraulic connection for coupling hydraulic components of the soil compacting device and for transmitting the hydraulic signal from the transmitter device; and with a transmission device for transmitting the movement of the operating element into a linear movement of the master piston; wherein the operating member between a first position and a second position is movable, wherein the first position corresponds to a maximum forward travel of the soil compacting device and wherein the second position corresponds to a maximum reverse travel of the soil compacting device; and wherein a latch means is provided for releasably holding the operating member in a predetermined position.
  • the predetermined position can be the first position, ie the position for maximum forward travel. However, it can also be another defined position, for example a position that lies between
  • the operating element can be designed, for example, as a switching bar, in particular as a handle bar, hand lever, sliding element or guide bar.
  • a switchover bracket is to be understood broadly.
  • the operating element can be moved relative to a holder (e.g. a tiller head) in order to achieve the two desired positions of the operating element.
  • the operating element can perform a linear movement or, in particular, a pivoting movement.
  • the movement of the operating element is transmitted to the master piston.
  • the master piston thus performs a movement corresponding to the movement of the operating element.
  • the master piston as part of the hydraulic master device generates the hydraulic signal in cooperation with the hydraulics or a hydraulic fluid, which can be transmitted to further hydraulic components of the soil compacting device via the hydraulic connection and optionally further components (hydraulic line).
  • This is in particular a hydraulically adjustable imbalance exciter that can be adjusted in this way with the help of the operating element.
  • control device can be separated from the actual soil compaction device, e.g. a vibratory plate, and has appropriate mechanical (e.g. attachment via a tiller head to a tiller of the vibratory plate) and hydraulic coupling options (hydraulic connection).
  • the locking device is able to hold the operating element in the predetermined position.
  • the predetermined position can be selected in a suitable manner, for example to effect forward travel at a specific speed. For example, forward travel at a low speed, below the maximum forward travel, can also be achieved.
  • the latching device it is also possible to vary the predetermined position in order to be able to hold the operating element in different positions and thus fix it.
  • the operator has the possibility, by setting the latching device, to specify a specific speed that is suitable for the current application in the form of a position of the operating element and also to hold the operating element in this position.
  • the predetermined position may be the first position, that is, the position for maximum forward travel.
  • the locking device is then able to hold the operating element in the first position. As a result, maximum forward travel can be maintained even if the operator no longer holds the operating element in this position but lets go.
  • the operating element can be releasably held by the latching device in such a way that the operating element can be moved out of the predetermined position by the operator using his manual force by overcoming the latching device.
  • the operating element should therefore only be held "releasably" in the predetermined position, e.g. the first position, so that it can easily be brought back into another position by the operator acting on the operating element.
  • the operator must always be able to move the control element out of the predetermined or first position, i.e. to release it, in order to stop maximum forward travel, for example.
  • the detachability of the operating element from the predetermined or first position thus means that the operator can release the holding state with his normal manual strength. Of course, the operator must not first have to destroy any connecting means (cutting through a retaining wire, etc.).
  • the latching device can be switched into two operating states, namely a first operating state in which the latching device can be used to detachably hold the operating element in the predetermined or first position, and a second operating state in which the latching device is ineffective.
  • the locking device can be activated or as desired be deactivated.
  • the latch When the latch is activated, it can perform the desired function of releasably holding the control in the first position.
  • the locking device is deactivated, it remains ineffective and does not hold the operating element even when it is in the first position.
  • the operating element is held in the first position, ie in the position for maximum forward travel, only if the operator also wishes this by activating the latching device.
  • the function of the latching device can be deactivated.
  • the operating element can be moved in such a way that it can be pivoted about an axis, and the transmission device can be designed to transfer the pivoting movement of the operating element into a linear movement of the master piston.
  • the operating element can in particular be a pivotable switching bracket, the movement of which is then transferred in a suitable manner to the linear movement of the master piston.
  • a control housing can be provided on which the operating element is movably held, it being possible for the master cylinder and the master piston to be arranged in the control housing.
  • the control housing can be formed in particular in the tiller head, which in turn can be fastened to the end of a tiller which is part of the soil compacting device.
  • the transmission device can have a pinion shaft coupled to the operating element and a toothed rack coupled to the master piston, the pinion shaft meshing with the toothed rack such that rotation of the pinion shaft causes a linear displacement of the toothed rack.
  • the toothed rack can be coupled to a piston rod forming part of the master piston or can be formed in the piston rod as part of the master piston.
  • the shifting of the toothed rack thus also causes a shifting of the master piston.
  • the latching device can have a pressure piece with a resiliently mounted latching element, the latching device also having a recess can, in which the locking element can be inserted, and wherein the recess can be formed on the transmission device or on the master piston.
  • the pressure piece can be mounted in the control housing.
  • the locking element can be designed as a locking pin and can be held in the pressure piece so that it can move against a spring.
  • the pressure piece can be mounted in the control housing, the recess being formed on the master piston or in the pinion shaft and the latching element being inserted into the recess when the operating element is in the predetermined position, e.g. the first position. It is thus possible for the latching to take place, for example, via the master piston or the piston rod. However, it can also take place via the pinion shaft or via the switching bracket if corresponding locking elements and a suitable recess are formed there.
  • the piston rod can be locked.
  • the pinion shaft or the switching bracket can be locked.
  • the outer surface of the pinion shaft has a suitable locking geometry (recess), for example a spherical cap.
  • a corresponding effect can also be implemented on the switching bracket. It is also possible to fasten the pressure piece on the outside, i.e. outside of the tiller head or the control housing.
  • the master piston can have a piston rod, in or on which the toothed rack is formed, wherein the recess can be formed in the piston rod and wherein in a longitudinal direction of the piston rod, offset to the recess, a further longitudinally extending recess can be formed as a clearance.
  • the clearance can be provided in order to rule out friction on the latching element or the latching pin in the area between stationary shaking or slight forward travel and full reverse travel. There should therefore be as little friction as possible between the latching element and the piston rod in the areas outside of full forward travel, in order to ensure good mobility of the piston rod and the master piston.
  • the pressure piece can be movably mounted in the control housing between two positions, with the first position of the pressure piece being defined in such a way that the locking element of the pressure piece can be inserted into the recess, while the second position of the pressure piece can be defined in such a way that the locking element is not in the recess can be inserted.
  • a switching device be provided for defined movement and holding of the pressure piece in the first position or in the second position.
  • the first position means that the self-sustaining forward drive can be switched on, ie activated.
  • the locking device can fulfill the intended function.
  • the latching device is deactivated, that is to say switched off and ineffective.
  • the activation or deactivation state of the locking device can thus be realized by the two positions of the pressure piece.
  • the pressure piece can be mounted in particular so that it can be displaced between the two positions.
  • the switching device for changing the positions of the pressure piece can have a pivotable lever with an eccentric geometry, it being possible for the lever to be pivotable into two defined positions corresponding to the two positions of the pressure piece. With the help of the lever it is thus possible to change the position of the pressure piece and to determine the two defined positions (first position and second position) in order in this way to activate or deactivate the latching device.
  • the operating element can be pivoted into a third position provided between the first position and the second position, which corresponds to a standstill of the soil compacting device.
  • standstill means a state in which the soil compacting device generates vibrations for soil compaction, but no advance.
  • the soil compaction device thus does not move from the spot, but causes a static vibration.
  • the soil compaction device can advantageously be a vibratory plate.
  • a vibrating plate is also specified, which can be equipped with a control device of the type described above.
  • control device that is largely analogous to that known from the prior art and above with reference to FIG Figures 1 and 2 described control device is constructed. To avoid repetition, the same components are therefore also identified with the same reference symbols. In addition, reference is made to the above description with regard to the general functioning of the control device.
  • the control device has the switching bracket 2 that can be pivoted relative to the control housing 1 .
  • the switching bracket 2 When the switching bracket 2 is pivoted, the pinion 8 is rotated about the axis 3, as a result of which the toothed rack 7 meshing with the pinion 8 is linearly displaced.
  • the toothed rack 7 is formed in one piece together with the piston rod 6 and the master piston 4, so that a common displacement of the master piston 4 is effected. Accordingly, a hydraulic signal can be transmitted via the hydraulic connection 10 to the soil compacting device (not shown), in particular to the imbalance exciter in a vibrating plate.
  • the switching bar 2 does not necessarily have to be designed as a bar-shaped operating element, but can also have another suitable design that allows the machine to be operated.
  • a latching device 20 is provided.
  • the latching device 20 has a pressure piece 21 inside which a latching pin 22 serving as a latching element can be displaced against the action of a spring 23 .
  • the locking pin 22 enters at one end of the pressure piece 21 (in 3 the top end).
  • the front end of the locking pin 22 is hemispherical or dome-shaped and penetrates into a recess 24 in the piston rod 6 .
  • the recess 24 thus serves as a detent notch into which the detent pin 22 of the pressure piece 21 can engage.
  • the switching bracket 2 can be set in a position other than that in 3 shown position for maximum forward travel.
  • the latching device 20 with the recess 24 can be positioned in such a way that the switching bracket 2 latches in a position that corresponds to reduced, ie slowed, forward travel.
  • Safety considerations can thus be taken into account, so that the vibrating plate cannot move forward without being checked by the operator at maximum forward speed, but only at reduced forward speed.
  • the locking pin 22 of the pressure piece 21 is spring-loaded, the spring force being large enough to move the master piston 4, which experiences a system-related restoring force, at the front, i.e. in the in 3 shown full forward travel.
  • the switching bar can then be released by the operator and still does not move automatically into the neutral position for stationary vibration.
  • the locking pin 22 When self-retaining forward travel is switched on (activation of the locking device), the locking pin 22 only rests against the left flank of the recess 24 and is already slightly pressed into the pressure piece 21, i.e. the top of the collar of the locking pin 22 is free. This ensures that the master piston 4 is always pushed forward (in the direction of V) fully and without play.
  • a clearance 25 is formed in the piston rod 6 next to the recess 24 .
  • the tip of the locking pin 22 can penetrate here without achieving a locking effect.
  • the clearance 25 can also be formed so deep that the locking pin 22 does not touch the piston rod 6 and no frictional effect is generated between the two components.
  • the complete pressure piece 21 including the locking pin 22 is movably mounted in the control housing 1 in the axial direction. Like comparing the 3 and 4 shows, the pressure piece 21 can thus be moved between two positions and locked in the respective positions. In a first position ( 3 ) it is possible that the tip of the locking pin 22 can penetrate into the recess 24 of the piston rod 6, as explained above.
  • a switching lever 26 is provided which has an eccentric outer surface 27 and can be pivoted about an axis of rotation 28, as also in FIGS 3 and 4 shown.
  • the distance between the eccentric outer surface 27 contacting the pressure piece 21 and the axis of rotation 28 of the switching lever 26 is greater than in the case of FIG 4 shown position. Accordingly, the pressure piece 21 in the in 3 pressed in the direction of the recess 24 shown position.
  • the operator In normal working operation of the soil compacting device, the operator will usually set the maximum forward drive in order to achieve a quick work result.
  • the described latching of the switching bracket 2 can be helpful because it allows the operator to let go of the switching bracket 2 and still maintain maximum forward travel.
  • the locking or holding mechanism can be overridden. To do this, the operator pulls back the switch bar 2 as usual, but with a little more effort.
  • the locking pin 22 is pressed against the spring force in the pressure piece 21 until the limitation of the recess 24 is completely overcome. Then the locking pin 22 can disengage again.
  • the disengaged locking pin 22 now lies with its collar within the pressure piece 21 and moves in the clearance 25, i.e. without contact with the piston rod 6. No additional friction is thus generated between the piston rod 6 and the locking pin 22, which also allows the vibration plate to to go automatically from reversing or, if necessary, from slight forward travel to stationary shaking when self-retaining forward travel is switched on (activated locking device).
  • the pressure piece 21 can also be provided with an external thread and screwed into the control housing 1 or the tiller head by means of a tool. In this case, it is not possible to connect without tools.
  • the pressure piece 21 can be provided with a coarse thread and can be screwed in or out by hand using a rotary lever up to the respective end stops, which means that it can be switched on without tools.
  • the thread can be selected in such a way that just half a turn is sufficient to switch it on or off (activation and deactivation of the latching device).
  • the locking pin 22 serving as a locking element can also be replaced by a spring-loaded ball.
  • the pressure piece 21 can also be implemented as a standard ball pressure piece.
  • the pressure piece 21 and thus the entire latching device 20 do not have to - as in 3 shown - be arranged from below. An arrangement from above or from the side is also possible.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Agronomy & Crop Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Control Devices (AREA)

Claims (12)

  1. Dispositif de commande pour un dispositif de compactage du sol, avec
    - un élément de commande mobile (2) pour donner une direction de déplacement du dispositif de compactage du sol par un opérateur ;
    - un dispositif transducteur hydraulique, avec un cylindre de transducteur (5), dans lequel un piston de transducteur (4) peut se déplacer de manière linéaire avec un mouvement de va-et-vient, pour la production d'un signal hydraulique,
    - un raccord hydraulique (10) pour le couplage de composants hydrauliques du dispositif de compactage du sol et pour la transmission du signal hydraulique provenant du dispositif transducteur ; et avec
    - un dispositif de conversion (7, 8) pour la conversion du mouvement de l'élément de commande (2) en un mouvement linéaire u piston transducteur (4) ;
    dans lequel
    - l'élément de commande (2) est mobile entre une première position (V) et une deuxième position (R), dans lequel la première position correspond à une marche avant maximale du dispositif de compactage du sol et dans lequel la deuxième position correspond à une marche arrière maximale du dispositif de compactage du sol ;
    - un dispositif d'encliquetage (20) est prévu, pour le maintien amovible de l'élément de commande (2) dans une position prédéterminée ;
    - le dispositif de transmission comprend un arbre à pignon (8) couplé avec l'élément de commande (2) ainsi qu'une crémaillère (7) couplée avec le piston de transducteur (4) ;
    - l'arbre à pignon (8) s'engrène avec la crémaillère (7) de façon à ce qu'une rotation de l'arbre à pignon (8) provoque un déplacement linéaire de la crémaillère (7) ;
    - le dispositif d'encliquetage (20) comprend une pièce de pression (21) avec un élément d'encliquetage (22) logé de manière élastique ;
    - le dispositif d'encliquetage (20) comprend en outre un évidement (24) dans lequel l'élément d'encliquetage (22) peut être inséré ;
    - le piston de transducteur (4) comprend une tige de piston (6) dans laquelle la crémaillère (7) est réalisée ;
    - l'évidement (24) est réalisé dans la tige de piston (6) ; et dans lequel
    - dans une direction longitudinale de la tige de piston (6), décalé par rapport à l'évidement (24), est réalisé, en tant que passage libre. un autre évidement (25) s'étendant longitudinalement.
  2. Dispositif de commande selon la revendication 1, dans lequel la position prédéterminée correspond à la première position.
  3. Dispositif de commande selon l'une des revendications précédentes, dans lequel l'élément de commande (2) est maintenu de manière amovible par le dispositif d'encliquetage (20), de façon à ce que l'élément de commande (2) puisse être déplacé hors de la position prédéterminée par l'opérateur à l'aide de sa force manuelle en surmontant le dispositif d'encliquetage (20).
  4. Dispositif de commande selon l'une des revendications précédentes, dans lequel le dispositif d'encliquetage (20) peut être commuté dans deux états de fonctionnement, à savoir un premier état de fonctionnement, dans lequel, grâce au dispositif d'encliquetage (20), le maintien amovible de l'élément de commande (2) dans la position prédéterminée peut être produit, et un deuxième état de fonctionnement, dans lequel le dispositif d'encliquetage (20) est sans effet.
  5. Dispositif de commande selon l'une des revendications précédentes, dans lequel
    - l'élément de commande (2) peut être déplacé de façon à être pivoté autour d'un axe (3) ; et dans lequel
    - le dispositif de conversion (7, 8) est conçu pour la conversion du mouvement de pivotement de l'élément de commande (2) en un mouvement linéaire du piston de transducteur (4).
  6. Dispositif de commande selon l'une des revendications précédentes, dans lequel
    - un boîtier de commande (1) est prévu ;
    - sur le boîtier de commande (1), l'élément de commande (2) est maintenu de manière mobile ; et dans lequel
    - dans le boîtier de commande (2), sont disposés le cylindre de transducteur (5) et le piston de transducteur (4).
  7. Dispositif de commande selon l'une des revendications précédentes, dans lequel
    - la pièce de pression (21) est logée dans le boîtier de commande (1) ;
    - l'évidement (24) est réalisé sur le piston de transducteur (4) ou dans l'arbre à pignon (8) ; et dans lequel
    - l'élément d'encliquetage (22) est inséré dans l'évidement (24) lorsque l'élément de commande (2) se trouve dans la position prédéterminée.
  8. Dispositif de commande selon l'une des revendications précédentes, dans lequel
    - la pièce de pression (21) est logée dans le boîtier de commande (1) de manière mobile entre deux positions ;
    - la première position de la pièce de pression (21) est définie de façon à ce que l'élément d'encliquetage (22) de la pièce de pression (21) puisse être inséré dans l'évidement (24), tandis que la deuxième position de la pièce de pression (21) est définie de façon à ce que l'élément d'encliquetage (22) ne puisse pas être inséré dans l'évidement (24) ; et dans lequel
    - un dispositif de commutation (26) est prévu, pour le mouvement défini et le maintien de la pièce de pression (26) dans la première position ou dans la deuxième position.
  9. Dispositif de commande selon l'une des revendications précédentes, dans lequel
    - le dispositif de commutation comprend un levier pivotant (26) avec une géométrie excentrique ; et dans lequel
    - le levier (26) peut pivoter dans deux positions définies en fonction des deux positions de la pièce de pression (21).
  10. Dispositif de commande selon l'une des revendications précédentes, dans lequel l'élément de commande (2) peut être pivoté dans une troisième position prévue entre la première position et la deuxième position, qui correspond à un point mort du dispositif de compactage du sol.
  11. Dispositif de commande selon l'une des revendications précédentes, dans lequel le dispositif de compactage du sol est une plaque vibrante.
  12. Plaque vibrante avec un dispositif de commande selon l'une des revendications précédentes.
EP20162351.9A 2019-04-05 2020-03-11 Dispositif de commande pour un dispositif de compactage du sol Active EP3719206B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019109021.0A DE102019109021A1 (de) 2019-04-05 2019-04-05 Steuervorrichtung für Bodenverdichtungsvorrichtung

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EP3719206A1 EP3719206A1 (fr) 2020-10-07
EP3719206B1 true EP3719206B1 (fr) 2022-03-09

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US (1) US11608607B2 (fr)
EP (1) EP3719206B1 (fr)
DE (1) DE102019109021A1 (fr)
DK (1) DK3719206T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019109028A1 (de) * 2019-04-05 2020-10-08 Wacker Neuson Produktion GmbH & Co. KG Steuervorrichtung für Bodenverdichtungsvorrichtung, mit Griffbügel und Drehzahlhebel

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1274854A (fr) * 1960-11-22 1961-10-27 Teves Kg Alfred Levier de transmission à dispositif d'encliquetage
DE8402033U1 (de) 1984-01-25 1984-04-26 Dynapac Maskin AB, 17122 Solna Selbstfahrende handgeführte Maschine
DE4016822A1 (de) * 1990-05-25 1991-11-28 Wacker Werke Kg Vibrationsplatte zur bodenverdichtung
DE4129915A1 (de) * 1991-04-03 1992-10-08 Weber Maschinentechnik Gmbh Sicherheitsanordnung fuer die bedienungselemente einer handgefuehrten, zur verdichtung des untergrundes vorgesehenen kraftbetriebenen walze
US20020150426A1 (en) * 2001-02-23 2002-10-17 Vandewinckel Stephen C. Quick adjustment mechanism for blade pitch of concrete power trowel
US7121762B2 (en) * 2001-10-09 2006-10-17 Somero Enterprises, Inc. Apparatus for screeding uncured concrete surfaces
DE102004048459A1 (de) * 2004-10-05 2006-04-13 Wacker Construction Equipment Ag Vibrationsplatte mit in Deichsel integrierbarer Fernsteuerung
DE102005029432A1 (de) * 2005-06-24 2006-12-28 Wacker Construction Equipment Ag Bodenverdichtungsvorrichtung mit automatischer oder bedienerintuitiver Verstellung des Vorschubvektors
US7980783B2 (en) * 2006-12-22 2011-07-19 Jaszkowiak Timothy S Linear lost motion positioning mechanism

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DE102019109021A1 (de) 2020-10-08
DK3719206T3 (da) 2022-05-09
US20200318308A1 (en) 2020-10-08
EP3719206A1 (fr) 2020-10-07
US11608607B2 (en) 2023-03-21

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