EP3719201B1 - Dispositif de commande pour un dispositif de compactage du sol, pourvu d'étrier de préhension et de levier de vitesse de rotation - Google Patents

Dispositif de commande pour un dispositif de compactage du sol, pourvu d'étrier de préhension et de levier de vitesse de rotation Download PDF

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Publication number
EP3719201B1
EP3719201B1 EP20164942.3A EP20164942A EP3719201B1 EP 3719201 B1 EP3719201 B1 EP 3719201B1 EP 20164942 A EP20164942 A EP 20164942A EP 3719201 B1 EP3719201 B1 EP 3719201B1
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EP
European Patent Office
Prior art keywords
rotational speed
operating element
control device
running direction
speed
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.)
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Application number
EP20164942.3A
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German (de)
English (en)
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EP3719201A1 (fr
Inventor
Ferdinand Rupp
Alexander Huber
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 EP3719201A1 publication Critical patent/EP3719201A1/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
    • 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
    • E01C19/38—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 with means specifically for generating vibrations, e.g. vibrating plate compactors, immersion vibrators
    • 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
    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/01—Arrangements of two or more controlling members with respect to one another
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/05—Means for returning or tending to return controlling members to an inoperative or neutral position, e.g. by providing return springs or resilient end-stops
    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G2505/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member

Definitions

  • the invention relates to a soil compacting device which can be driven by a motor.
  • Vibration plates usually have a ground contact plate on which an imbalance exciter is mounted, which has, for example, two counter-rotating imbalance shafts that can be rotated in opposite directions by a drive, in particular a drive motor.
  • the rotation of the imbalance shafts in the imbalance exciter generates vibrations that can be used in a known manner for soil compaction.
  • the imbalance exciter is usually driven by a hydraulic system or by means of a belt drive.
  • a longitudinally extending drawbar is provided on the vibration plate, at the end of which (drawbar head) there is a switching or handle bar, via which an operator can not only steer and guide the vibration plate, but also adjust the running direction of the vibration 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 handle 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 of the vibration plate can be adjusted with the help of the switching bracket.
  • a hand lever for setting the speed can be provided with which the speed of the drive motor can be adjusted in a known manner.
  • the hand lever is usually arranged on the underside of the tiller body or on the side of the tiller head or tiller body.
  • the hand lever (speed lever, throttle lever) is provided directly on the engine or on a protective frame of the vibration plate.
  • the speed lever Depending on the arrangement of the speed lever, there may be problems with its accessibility or recognizing its selected position and thus speed. If, for example, the speed lever is arranged on the underside of the drawbar body, the position of the speed lever cannot be seen easily and, above all, not when the vibration plate is in operation. Due to its exposed position, especially when the drawbar is folded up, the speed lever can even be damaged during transport or loading of the machine. This problem also exists when the speed lever is attached to the side of the tiller head or the tiller body. If the speed lever is located directly on the engine or on the protective frame of the vibratory plate, the larger the machine, the greater the distance between the operator and the speed lever, making operation more difficult and, in any case, more uncomfortable.
  • a control device for a vibrating roller in which a lever for setting the running direction and another lever for setting the speed of a drive motor are provided on a control box.
  • the two levers are pivotable about a common axis.
  • the invention is therefore based on the object of specifying a control device for a soil compaction device in which the operating element for setting the engine speed (e.g. a speed or hand lever) is arranged in an easily accessible and visible manner, while at the same time providing good protection against damage, especially when loading and transportation.
  • the operating element for setting the engine speed e.g. a speed or hand lever
  • control device having the features of claim 1.
  • a vibration plate with a corresponding control device is specified in the independent claim.
  • Advantageous embodiments are specified in the dependent claims.
  • a control device for a soil compaction device that can be driven by a drive motor is specified, with a running direction control element that can be pivoted about a first axis for specifying a running direction of the soil compacting device by an operator, and with a speed control element that can be pivoted about a second axis for setting a speed of the drive motor , wherein the first axis and the second axis are congruent and form a common pivot axis.
  • the drive motor for example an internal combustion engine or electric motor, does not represent part of the control device and is therefore not part of the invention or the claim. Rather, a control device is specified, which can be coupled to the drive motor.
  • the operating direction control element can be, for example, a robust handle bar or switching bar, by pivoting an imbalance exciter of the soil compacting device (for example a vibrating plate) can be set in a known manner.
  • an imbalance exciter of the soil compacting device for example a vibrating plate
  • the speed control element for example a hand lever or a speed lever, is used to control the engine and in particular to set the engine speed.
  • the two operating elements are arranged on the same common pivot axis and can be pivoted about it independently of one another, which allows for a very compact design.
  • the running direction control element and the speed control element can be held by a control housing.
  • the control housing can in particular form part of a tiller head which can be arranged at the end of a guide tiller of a vibration plate.
  • the control housing can be designed to hold the bearing devices that may be provided in each case for the pivotability of the two operating elements.
  • a hydraulic connection device can be provided to which the hydraulic components of the soil compaction device can be connected, with the running direction control element being coupled to a running direction transmission device for transmitting a pivoting movement of the running direction control element via the hydraulic connection device to the hydraulic components of the soil compaction device.
  • the hydraulic components can be, for example, the unbalance exciter in the vibration plate or a hydraulic adjusting device in the unbalance exciter.
  • the adjusting device can be coupled to the unbalanced masses or unbalanced shafts in the unbalanced exciter in a known manner and can set or adjust the phase position of the unbalanced shafts relative to one another.
  • the hydraulic connection device for example a hydraulic connection or a hydraulic hose, couples the direction of travel transmission device to the hydraulic components, e.g. to the hydraulic adjustment device of the unbalance exciter.
  • a hydraulic master cylinder with a movable master piston can be provided in the running direction transmission device, the movement of which is coupled to the movement of the running direction operating element.
  • the master cylinder with the master piston can be connected hydraulically to a slave cylinder/slave piston on the unbalance exciter, e.g.
  • the position of the operating direction control element can be transferred directly to a position of the hydraulic components and thus, for example, of the imbalance exciter.
  • a speed transmission device can be provided for transmitting a swivel position of the speed control element to a motor controller of the drive motor.
  • the motor control does not represent a part of the control device, but rather a part of the drive motor to which the control device according to the invention can be connected.
  • the motor controller includes a carburetor, for example, which can be controlled by the speed control element with the aid of the speed transmission device.
  • carburetor for example, which can be controlled by the speed control element with the aid of the speed transmission device.
  • rotational speed transmission device does not mean that a rotational speed is transmitted, but only the control information for causing a corresponding rotational speed of the motor. The designation was chosen to clarify an assignment to the speed control element.
  • the speed transmission device can enable electronic transmission.
  • a mechanical transmission e.g. with a mechanical Bowden cable, which can be constructed in a known manner, has proven particularly effective.
  • At least the following operating states of the soil compacting device can be controlled by the operating direction control element: maximum forward travel, maximum reverse travel, standstill.
  • maximum forward travel maximum reverse travel
  • standstill it is possible in particular for the soil compaction device to cause standing vibration, ie standing compaction, in order to locally produce particularly intensive soil compaction to reach.
  • the corresponding direction of travel or standstill can be achieved by adjusting the resulting force vector in the unbalance exciter.
  • the speed control element can be pivoted into at least the following positions, which correspond to the corresponding operating states of the drive motor: maximum position for a maximum speed of the drive motor, idle position for an idle speed of the drive motor. The selection of these positions or operating states makes sense above all when the drive motor is an internal combustion engine.
  • an imaginary envelope of the running direction control element can circumscribe a virtual space, with the speed control element being arranged at least partially in the virtual space in an “off” operating state.
  • the switched-off operating state is a state in which the drive motor, in particular the internal combustion engine, is switched off.
  • the possibly driven soil compaction device is then at a standstill and at rest.
  • a volume that is not limited on all sides by real physical boundaries such as housing walls, sheet metal, etc. is to be described as a "virtual" space. Rather, it is to be understood as the volume that is surrounded by the envelope of the running direction control element. The enveloping behaves like an imaginary cloth that is stretched over the running direction control element.
  • the speed control element is at least partially arranged in the virtual space spanned by the running direction control element in the switched-off operating state, the speed control element is surrounded by the running direction control element, ie protected. It is possible, for example, that the two control elements are aligned when viewed from the side.
  • the running direction control element which is usually designed to be much more robust, represents a kind of protective bracket or protective frame for the speed control element. In this way, harmful external mechanical influences can be reliably kept away from the speed control element.
  • the part of the speed control element that extends away from the pivot axis ie the actual lever
  • the hub that enables the pivotability and that carries the actual lever is itself usually designed to be robust and is rarely exposed to external influences.
  • the running direction control element can assume a foremost pivoting position, in particular automatically, ie without operator intervention, while the speed control element can assume an idle position in the “switched off” operating state.
  • the foremost pivoting position of the running direction control element can correspond to maximum or full forward travel. Due to the design, this position can occur by itself, i.e. automatically due to the inertial effect of the imbalance shafts in the imbalance exciter or a spring in the tiller head.
  • the effect of inertia means that hydraulic forces are exerted on the running direction control element via the running direction transmission device, which move the control element into the foremost pivoting position for maximum forward travel, as long as the operator does not counteract this with his manual force.
  • the speed control element should always be in the idle position automatically when the engine is switched off (operating state "Off") in order to make it easier to start the engine later.
  • the engine speed lever In the case of combustion engines, it is useful for the engine speed lever to be in the idle position when the engine is started, in order to enable a rapid start process and to prevent the engine from revving up (if the engine speed lever is in the full throttle position, for example).
  • a restoring device In order to ensure the automatic pivoting of the speed control element into the idle position, which will be explained below.
  • An idle position is a position of the speed control element that causes an idle speed or an idle state of the drive or internal combustion engine.
  • the speed control element When the two controls are in the positions mentioned (front pivot position, neutral position), the speed control element should be in the virtual space spanned by the running direction control element in order to be effectively protected. Since the two positions for both controls are always taken automatically or independently, independently of one another, when the soil compacting device is switched off is reached, this protective position for the speed control element is also reached automatically.
  • a restoring device can be provided for generating a restoring torque on the speed control element when the speed control element is rotated by the operator from the idle position into a "shut off" position, wherein when the speed control element is released by the operator, the Restoring device using the restoring torque causes rotation of the speed control element from the switch-off position to the idle position.
  • the switch-off position is to be understood as meaning a position of the speed control element in which the internal combustion engine is switched off. This can be a position, for example, in which an electrical switch-off device is actuated. It can also be a position in which the speed is reduced via the carburetor to such an extent that the engine comes to a standstill. While the "switched off” operating state means that the engine is already switched off, the “switching off” operating state thus describes a state in which the engine is first to be transferred to the "switched off” operating state.
  • the resetting device enables the speed control element to be turned automatically to the "idle” position with the aid of the restoring torque whenever the operator has previously turned the control element to the "switch off” position in order to switch off the combustion engine. In the “position “ Idle” the engine is then of course in the "switched off” operating state. The operator no longer has to worry that the speed control element is in a suitable position in order to subsequently start the combustion engine again in idling mode.
  • the restoring device can be designed in a suitable manner and can have a spring, for example.
  • the running direction control element is designed as a handle bar, the handle bar being attached to a shaft bolt whose central axis corresponds to the common pivot axis, and the handle bar being pivotable together with the shaft bolt about the common pivot axis.
  • the shaft bolt can be rigidly connected to the handle bar and form a structural unit with it. It absorbs the torque that the operator manually applies as a pivoting movement of the handlebar becomes.
  • the shaft bolt can be used for the stable and pivotable mounting of the handle bar on the tiller head.
  • the shaft bolt can be coupled to the running direction transmission device for transmitting the pivoting movement of the running direction control element, for example a handle bar, and thus the shaft bolt to the hydraulic components of the soil compacting device that can be coupled to the control device.
  • the pivoting moment applied by the operator can finally be transmitted to the imbalance exciter of the vibration plate via the shaft bolt and the running direction transmission device.
  • the speed control element can be coupled to a bearing drum which is mounted in the control housing and can be rotated in accordance with a movement of the speed control element.
  • the bearing drum for its part, can also be rotated about the common pivot axis, and the speed transmission device can be designed to transmit a rotational position of the bearing drum to the engine controller of the internal combustion engine.
  • the motor control is not part of the control device, but is assigned to the drive motor.
  • the operator can operate the speed control by pivoting it.
  • This pivoting movement is transmitted directly via the speed control element to the bearing drum, which is rigidly coupled to the speed control element.
  • the rotational movement of the bearing drum can be transmitted by the speed transmission device, for example via a Bowden cable, to the engine control of the internal combustion engine, for example a carburetor, in order to set the desired engine speed there.
  • the bearing drum can be designed at least partially as a sleeve that encloses the shaft bolt of the operating direction control element or the handle bar on the circumference.
  • the bearing drum can be mounted on its outer circumference in the control housing using one or more suitable plain bearings.
  • the shaft bolt can be mounted in the control housing, also with the help of one or more plain bearings.
  • the bearings for the bearing drum and for the shaft bolt can thus be arranged next to one another in the control housing. Between the inside of the bearing drum and the shaft bolt penetrating the bearing drum a gap may be formed to separate the bearing of the shaft bolt from the bearing of the bearing drum.
  • a start control device can be provided for activating a starting device for the internal combustion engine that can be coupled to the control device when it is actuated by an operator, wherein a cover device coupled to the speed control element can be provided for covering the start control device depending on a Speed Control Location .
  • the start control device can be, for example, a button or switch with which the starting device (for example an electric starter) can be activated. When the operator presses the button, the starter is started.
  • the starting device for example an electric starter
  • the cover device is coupled to the speed control element, for example to the speed lever, and covers the start control device if accidental actuation of the start control device by the operator is to be prevented.
  • the start control device is then not accessible to the operator with his fingers.
  • the cover device Only when starting the engine is permitted, for example in the idle position, does the cover device release the start control device based on the then existing position of the speed control element, so that it can be actuated by the operator.
  • the speed control element can be coupled to the cover device in such a way that the start control device is covered by the cover device when the speed control element is in a position that causes the drive motor to rotate faster than the idle speed. This can also prevent accidental actuation of the start control device, which could be particularly harmful when the engine is already running at high speed.
  • control device described can be used advantageously in particular in the case of a vibrating plate serving as a soil compacting device.
  • the speed control element for example the speed lever
  • the speed lever is easily accessible and light can be operated by one operator.
  • the fact that the speed lever is arranged close to the handle that serves as the operating direction control element means that quick access can also be achieved when the machine is only being operated with one hand.
  • This means that spontaneous speed changes are possible, for example to bring about a short-term speed reduction (and thus also a reduction in the centrifugal force and the running speed of the vibrating plate) in front of a sensitive obstacle, for example a protruding concrete manhole ring.
  • the speed lever and a pictogram that may be arranged for it to clarify the different speed settings can be seen better than if it were arranged at a different point on the drawbar body. The operator can reach the throttle handle immediately without having to reach for it.
  • the speed lever is well protected against physical damage because it does not protrude freely into the unprotected space. Violent damage in particular when loading a vibratory plate can be avoided in this way. This applies in particular when the handlebar and the speed control lever are in line, so that the full protective effect of the handlebar can be used.
  • the cover of the start button can be useful. If a speed above the idle speed is then set on the speed lever, the electric button for actuating the starter is partially or completely covered, which signals the operator not to press the button. Depending on the design, the operator then has no way of pressing the button. This prevents the engine from being started unintentionally at an increased speed. This can also prevent any centrifugal clutch that may be present from being engaged, so that the machine does not start moving unintentionally and unexpectedly.
  • the Figures 1 and 2 show a control device for a soil compaction device, in particular for a vibrating plate.
  • the control device is arranged in or on a control housing 1, which can also be designed as a tiller head, which in turn is arranged at the end of a guide tiller, not shown.
  • the guide tongue is coupled to the actual vibrating plate, also not shown, and is used for guiding the vibrating plate by an operator in a manner known per se.
  • the structure of a vibrating plate (vibrating plate) is also known, so that no further explanation is required at this point.
  • control housing 1 There are two controls on the control housing 1, namely a handle bar 2 (switching bar) that serves as a direction control element and a speed lever 3 that serves as a speed control element.
  • a handle bar 2 switching bar
  • a speed lever 3 that serves as a speed control element.
  • the handle bar 2 is designed to be robust and has a front view ( 2 ) has a substantially rectangular shape with rounded corners.
  • the handlebar 2 is made from a stable, bent tube, at the ends of which two metal brackets 4 are welded, the ends of which are in turn screwed together via a shaft bolt 5 .
  • the shaft bolt 5 is mounted in the control housing 1 in a suitable manner. The handle bar 2 with the sheet metal tabs 4 and the shaft bolt 5 thus forms a closed, circumferential shape that increases stability.
  • the handlebar 2 When the handlebar 2 is actuated, it pivots with the sheet metal brackets 4 and the shaft bolt 5 about a pivot axis 6 serving as the first axis.
  • the shaft bolt 5 is coupled to a running direction transmission device, not shown.
  • This can have a pinion, for example, which is fastened to the shaft bolt 5 and moves a master piston in a master cylinder back and forth axially via a toothed rack.
  • the resulting hydraulic signal is transmitted via a hydraulic coupling to a slave piston in a Transfer slave cylinder, which can be provided on an unbalance exciter in the vibration plate.
  • the imbalance shafts in the imbalance exciter can be adjusted in terms of their rotational position or phase position in order to adjust the direction of the force vector that results when the two imbalance shafts rotate against one another.
  • the running direction of the vibration plate can be influenced.
  • running directions with maximum forward travel, maximum reverse travel and standstill of the vibrating plate can be achieved, with any intermediate positions being possible.
  • the positions correspond to a respective pivoting position of the handle bar 2 relative to the control housing 1.
  • the speed lever 3 is also mounted on the control housing 1 coaxially with the handle bar 2 .
  • the speed lever 3 is rigidly coupled or screwed to a bearing drum 7 .
  • the bearing drum 7 is captively and rotatably mounted in the control housing 1 , in particular with the aid of a plain bearing formed on the outer circumference of the bearing drum 7 .
  • the bearing drum 7 On its outer diameter, the bearing drum 7 has a circumferential recess 8 in which a wire 9 of a Bowden cable is guided.
  • the wire 9 of the Bowden cable is more or less wound up in this way, that is, pulled or released.
  • the other end of the wire 9 and the Bowden cable (not shown) is coupled to a carburetor of an internal combustion engine belonging to the vibration plate.
  • the position of a throttle valve in the carburetor can be adjusted via the Bowden cable and the wire 9 by pivoting the speed lever 3.
  • the Bowden cable can also act on another control device, such as an injection pump in diesel engines.
  • the speed lever 3 with the bearing drum 7 can also be pivoted about the pivot axis 6, which in this respect also serves as a second axis.
  • the pivot axis 6 thus provides a common pivot axis for both the speed lever 3 as also for the handle bar 2. In this way, a very compact construction of the control device is possible.
  • the handle bar 2 is mounted on the shaft bolt 5 in the left part of the control housing 1, for example using a plain bearing, not shown.
  • the bearing drum 7 is mounted.
  • the shaft bolt 5 extends through the hollow-cylindrical, sleeve-like bearing drum 7 without touching it. In this way, the bearings of the handle bar 2 and the speed lever 3 can be easily separated from one another in order to prevent unwanted interference with one another.
  • the in the Figures 1 and 2 The position shown of the handlebar 2 and the speed lever 3 corresponds to a position that the two controls then automatically assume when the internal combustion engine and thus the vibration plate is switched off. This is also the position with which the vibratory plate is transported and loaded, for example.
  • the handle bar 2 is in this case in its foremost pivoting position (arrow V), which occurs automatically due to the inertial effect of the imbalance masses in the unbalance exciter and the transmission via the hydraulic system to the handle bar 2 .
  • the handle bar 2 When the operator releases the handle bar 2, the turns into the Figures 1 and 2 front position shown (maximum forward travel) automatically.
  • the speed lever 3 is also in a position that occurs automatically when the engine is switched off. This is in particular the neutral position, which is also useful when the engine is to be restarted.
  • a restoring device (not shown) can be present, which automatically pivots the speed lever 3 into the idle position shown.
  • a switch-off position can be assumed by the speed lever 3 and the bearing drum 7, in which the speed lever 3 moves out of position in 1 idle position shown is pivoted counter to the direction of arrow V.
  • an electrical switch-off contact can be actuated, which switches off the internal combustion engine electrically.
  • the speed can also be reduced to such an extent that the combustion engine comes to a standstill.
  • the restoring device causes the speed lever 3 and the bearing drum 7 to pivot in the direction of the arrow V in the Figures 1 and 2 shown idle position. In this position, the speed lever 3 is then well protected by the handle bar 2.
  • a pictogram 11 can be applied to the top of the control housing 1, which illustrates the positions "idle speed” and “maximum speed” by a simple symbolic representation.
  • the Figures 3 and 4 show a variant in which the control device is additionally equipped with a start button 12 serving as a start control device ( 3 ). By pressing the start button 12, the operator can activate a start that starts the internal combustion engine in a known manner.
  • the start button 12 is in 3 easily accessible and can be operated easily by the operator.
  • a cover 13 is formed, which in the case of the Figures 3 and 4 example shown is integrally connected to the speed lever 3. Of course, it can also be coupled to the speed lever 3 in a different way.
  • the cover 13 is pivoted over the start button 12 so that it is no longer accessible and cannot be actuated by the operator accidentally.

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  • Structural Engineering (AREA)
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Claims (14)

  1. Dispositif de commande pour un engin de compactage de sol actionnable par un moteur d'entraînement, avec
    - un élément de commande du sens de marche (2) pivotant autour d'un premier axe pour permettre à un opérateur de définir un sens de marche de l'engin de compactage de sol ; et avec
    - un élément de commande de vitesse de rotation (3) pivotant autour d'un deuxième axe pour régler une vitesse de rotation du moteur d'entraînement ;
    dans lequel
    - le premier axe et le deuxième axe coïncident et forment un axe de pivotement commun (6), caractérisé en ce que
    - l'élément de commande du sens de marche est réalisé sous la forme d'un arceau de préhension (2) ;
    - l'arceau de préhension (2) est fixé à un boulon axe (5) dont l'axe central correspond à l'axe de pivotement commun (6) ; et dans lequel
    - l'arceau de préhension (2) peut pivoter ensemble avec le boulon axe (5) autour de l'axe de pivotement commun (6).
  2. Dispositif de commande selon la revendication 1, dans lequel l'élément de commande du sens de marche (2) et l'élément de commande de vitesse de rotation (3) sont maintenus par un boîtier de commande (1).
  3. Dispositif de commande selon l'une des revendications précédentes, dans lequel
    - il est prévu un moyen de raccordement hydraulique auquel les composants hydrauliques de l'engin de compactage de sol peuvent être raccordés ; et dans lequel
    - l'élément de commande du sens de marche est couplé à un moyen de transmission du sens de marche afin de transmettre un mouvement de pivotement de l'élément de commande du sens de marche (2) par le biais du moyen de raccordement hydraulique aux composants hydrauliques de l'engin de compactage de sol.
  4. Dispositif de commande selon l'une des revendications précédentes, dans lequel il est prévu un moyen de transmission de la vitesse de rotation afin de transmettre une position de pivotement de l'élément de commande de vitesse de rotation (3) à une commande du moteur d'entraînement.
  5. Dispositif de commande selon l'une des revendications précédentes, dans lequel l'élément de commande du sens de marche (2) permet de commander au moins les états de fonctionnement suivants de l'engin de compactage de sol :
    - marche avant maximale de l'engin de compactage de sol,
    - marche arrière maximale de l'engin de compactage de sol,
    - arrêt de l'engin de compactage de sol.
  6. Dispositif de commande selon l'une des revendications précédentes, dans lequel l'élément de commande de vitesse de rotation (3) peut pivoter au moins dans les positions suivantes correspondant à des états de fonctionnement correspondants du moteur d'entraînement :
    - position maximale pour une vitesse de rotation maximale du moteur d'entraînement,
    - position de ralenti pour une vitesse de rotation au ralenti du moteur d'entraînement.
  7. Dispositif de commande selon l'une des revendications précédentes, dans lequel
    - une extrémité d'enveloppe de l'élément de commande du sens de marche (2) circonscrit un espace virtuel ; et dans lequel
    - l'élément de commande de vitesse de rotation (3) dans un état de fonctionnement "Désactivé" est disposé au moins en partie dans l'espace virtuel.
  8. Dispositif de commande selon l'une des revendications précédentes, dans lequel
    - l'élément de commande du sens de marche (2) dans l'état de fonctionnement "Désactivé" occupe une position de pivotement la plus en avant ; et dans lequel
    - l'élément de commande de vitesse de rotation (3) dans l'état de fonctionnement "Désactivé" occupe une position de ralenti.
  9. Dispositif de commande selon l'une des revendications précédentes, dans lequel
    - il est prévu un moyen de rappel pour générer un moment de rappel sur l'élément de commande de vitesse de rotation (3) lorsque l'opérateur fait tourner l'élément de commande de vitesse de rotation (3) de la position de ralenti à une position d'arrêt ; et dans lequel
    - lorsque l'opérateur libère l'élément de commande de vitesse de rotation (3), le moyen de rappel provoque par le biais du moment de rappel une rotation de l'élément de commande de vitesse de rotation (3) de la position d'arrêt à la position de ralenti.
  10. Dispositif de commande selon l'une des revendications précédentes, dans lequel
    - l'élément de commande de vitesse de rotation (3) est couplé à un palier cylindrique (7), supporté dans le boîtier de commande (7), qui peut tourner en fonction d'un mouvement de l'élément de commande de vitesse de rotation (3) ;
    - le palier cylindrique (7) peut tourner autour de l'axe de pivotement commun (6) ; et dans lequel
    - le moyen de transmission de la vitesse de rotation est réalisé de manière à transmettre une position de rotation du palier cylindrique (7) par rapport à la commande du moteur d'entraînement.
  11. Dispositif de commande selon la revendication 10, dans lequel le palier cylindrique (7) est réalisé au moins en partie sous la forme d'un manchon qui entoure le boulon axe (5) sur sa circonférence.
  12. Dispositif de commande selon l'une des revendications précédentes, dans lequel
    - il est prévu un moyen de commande de démarrage (12) pour activer un moyen de démarrage couplable au dispositif de commande du moteur d'entraînement lors d'une action d'un opérateur ; et dans lequel
    - il est prévu un moyen de recouvrement (13) couplé à l'élément de commande de vitesse de rotation (3) pour recouvrir le moyen de commande de démarrage (12) en fonction d'une position de l'élément de commande de vitesse de rotation (3).
  13. Dispositif de commande selon la revendication 12, dans lequel l'élément de commande de vitesse de rotation est couplé au moyen de recouvrement (13) de telle façon que le moyen de commande de démarrage (12) est recouvert par le moyen de recouvrement (13) lorsque l'élément de commande de vitesse de rotation (3) se trouve dans une position qui provoque une vitesse de rotation du moteur d'entraînement supérieure à la vitesse de rotation au ralenti.
  14. Plaque vibrante avec un dispositif de commande selon l'une des revendications précédentes.
EP20164942.3A 2019-04-05 2020-03-23 Dispositif de commande pour un dispositif de compactage du sol, pourvu d'étrier de préhension et de levier de vitesse de rotation Active EP3719201B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019109028.8A DE102019109028A1 (de) 2019-04-05 2019-04-05 Steuervorrichtung für Bodenverdichtungsvorrichtung, mit Griffbügel und Drehzahlhebel

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EP3719201A1 EP3719201A1 (fr) 2020-10-07
EP3719201B1 true EP3719201B1 (fr) 2023-05-10

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US (1) US11359343B2 (fr)
EP (1) EP3719201B1 (fr)
DE (1) DE102019109028A1 (fr)
DK (1) DK3719201T3 (fr)
FI (1) FI3719201T3 (fr)

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DE102021110516A1 (de) * 2021-04-23 2022-10-27 Weber Maschinentechnik Gmbh Motorsteuerung, Deichsel, handgeführter Bodenverdichter und Verfahren zum Betreiben eines handgeführten Bodenverdichters
DE102021114075A1 (de) 2021-05-31 2022-12-01 Weber Maschinentechnik Gmbh Handgeführter Bodenverdichter

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Publication number Priority date Publication date Assignee Title
SE452349B (sv) * 1986-04-23 1987-11-23 Dynapac Ab Forfarande och anordning vid sjelvgaende handmanovrerad vibratorplatta
DE8714812U1 (de) * 1987-11-06 1989-03-09 Ammann-Duomat Verdichtung GmbH, 5202 Hennef Vibrationsplatte zur Verdichtung des Bodens
DE102004014750A1 (de) * 2004-03-25 2005-10-13 Wacker Construction Equipment Ag Bodenverdichtungsvorrichtung
DE102004048459A1 (de) * 2004-10-05 2006-04-13 Wacker Construction Equipment Ag Vibrationsplatte mit in Deichsel integrierbarer Fernsteuerung
EP2558649B1 (fr) * 2010-04-16 2014-11-19 Ammann Schweiz AG Agencement pour fournir une force de pression pulsée
WO2016029317A1 (fr) * 2014-08-28 2016-03-03 Sorg Daniel Compacteur à plaque vibrante ayant un moyen de nivellement
JP6371248B2 (ja) * 2015-03-25 2018-08-08 株式会社日立建機カミーノ ハンドガイドローラ
DE102017105117A1 (de) * 2017-03-10 2018-09-13 Wacker Neuson Produktion GmbH & Co. KG Bodenverdichtungsvorrichtung mit Ausgleichskupplung
DE102019109021A1 (de) * 2019-04-05 2020-10-08 Wacker Neuson Produktion GmbH & Co. KG Steuervorrichtung für Bodenverdichtungsvorrichtung
DE102019110041A1 (de) * 2019-04-16 2020-10-22 Wacker Neuson Produktion GmbH & Co. KG Handgeführtes Arbeitsgerät mit entkoppeltem Deichselträger

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US20200318309A1 (en) 2020-10-08
DE102019109028A1 (de) 2020-10-08
US11359343B2 (en) 2022-06-14
EP3719201A1 (fr) 2020-10-07
DK3719201T3 (da) 2023-07-03
FI3719201T3 (en) 2023-07-17

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