EP2529051B1 - Soil compaction device having a disconnectable fuel line - Google Patents

Soil compaction device having a disconnectable fuel line Download PDF

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Publication number
EP2529051B1
EP2529051B1 EP11702395.2A EP11702395A EP2529051B1 EP 2529051 B1 EP2529051 B1 EP 2529051B1 EP 11702395 A EP11702395 A EP 11702395A EP 2529051 B1 EP2529051 B1 EP 2529051B1
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EP
European Patent Office
Prior art keywords
fuel line
soil compaction
elastically flexible
clamping
fuel
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.)
Not-in-force
Application number
EP11702395.2A
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German (de)
French (fr)
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EP2529051A2 (en
Inventor
Niels Laugwitz
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Bomag GmbH and Co OHG
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Bomag GmbH and Co OHG
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Publication of EP2529051A2 publication Critical patent/EP2529051A2/en
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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
    • E01C19/22—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
    • E01C19/35—Hand-held or hand-guided tools
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/007—Layout or arrangement of systems for feeding fuel characterised by its use in vehicles, in stationary plants or in small engines, e.g. hand held tools

Definitions

  • the invention relates to a soil compaction device with an internal combustion engine and with a tank container for receiving fuel for the operation of this internal combustion engine.
  • the soil compacting device is preferably a hand-held soil compacting device such as in particular a rammer, a vibrating plate device or the like.
  • the soil compacting device comprises an internal combustion engine and a tank container for holding fuel, such as, in particular, gasoline, for the operation of this internal combustion engine.
  • the soil compaction device comprises a manually operable gas actuation device and / or a manually operable start-stop device for the internal combustion engine.
  • the soil compacting device according to the invention comprises at least one clamping device which acts on at least one elastically flexible section of a fuel line which is arranged between the tank container and the internal combustion engine, or the tank container and a gasifier device belonging to the internal combustion engine and mechanically connects these (ie without electrical adjusting components, for example) in order to interrupt the fuel flow through this fuel line or the fuel flow and in particular to be able to disconnect. It is envisaged that the Abklemm adopted with the gas actuator and / or the start-stop device is mechanically coupled or integrated in this.
  • the clamping takes place in particular by the flexible section of the fuel line being compressed or squeezed together to interrupt the fuel flow at at least one point provided for this purpose by applying a force (clamping force). After relieving the force, the compressed area of the fuel line expands due to elastic restoring forces and releases the fuel flow again.
  • a force clamping force
  • the solution according to the invention is characterized in an advantageous manner by the fact that it is insensitive in many respects. Furthermore, an undesirable fuel flow can be reliably interrupted. As a result, the operational reliability of the soil compaction device is significantly increased.
  • a known from the prior art valve device as explained above, omitted, whereby costs can be saved.
  • the proposed solution is convincingly simple, requires few components and is extremely robust.
  • a clamping device is understood as meaning a single or a plurality of interacting elements-or components-which can cause the fuel line to become jammed in the region of the elastically flexible section.
  • elements-or components which can cause the fuel line to become jammed in the region of the elastically flexible section.
  • the flexible section is preferably a hose section which is formed, in particular, from a fuel-resistant and weather-resistant material.
  • the relevant section may be removed on site, e.g. B. at the construction site, even by untrained personnel quickly and easily be replaced. This also contributes to increasing the operational reliability of the soil compaction device.
  • the Abklemm observed mechanically coupled to a manually operable gas actuating device for adjusting the power or the rotational speed of the internal combustion engine and / or with a manually operable start-stop device for accomplishing a start-stop function of the internal combustion engine or integrated with this is trained.
  • a gas actuator and a start-stop device may be implemented as a common device. It is preferably provided that the gas actuating device and / or the start-stop device has at least one operating position or starting position at which the internal combustion engine is in operation or can be started, wherein the fuel flow is released from the tank container to the engine, and at least one stop position in which the internal combustion engine is in the idle state and the fuel flow from the tank container to the internal combustion engine is interrupted.
  • the gas actuating device and / or the start-stop device comprises a pivotable, manually operated by the operator lever (throttle and / or on-off lever) or the like, via a lever mechanism on the elastic flexible section of the fuel line can act mechanically to be able to disconnect the fuel flow through the fuel line can.
  • the lever mechanism is formed by a protruding over the pivot extension of the actuating lever.
  • the adjusting lever is integrally formed with this extension. This extension may act directly or indirectly on the elastically flexible portion of the fuel line to cause the clamping.
  • At least one roller or roller is arranged, which on the elastically flexible portion the fuel line acts to be able to disconnect the fuel flow through the fuel line can.
  • a roller or roller can avoid excessive frictional and shear forces on the outer jacket of the fuel line, which could result in wear and damage.
  • the roller or roller thus serves as a wear-reducing element.
  • the adjusting lever is formed with at least one cam, which can act directly or indirectly on the elastically flexible portion of the fuel line mechanically to be able to disconnect the fuel flow through the fuel line can.
  • the adjusting lever is integrally formed with the cam.
  • at least one pressure piece which is movable relative to the elastically flexible section of the fuel line is encompassed in that a clamping force applied by the cam transmits without friction to the elastically flexible section of the fuel line in order thereby to be able to disconnect the fuel flow through the fuel line.
  • the Abklemm driving is designed to allow a punctual clamping of the elastically flexible portion of the fuel line.
  • the Abklemm driving is designed to allow a clamping of the elastically flexible portion of the fuel line along a longitudinal section or a flat clamping.
  • the Abklemm driving is designed to allow a multiple clamping, for example. At different points of the elastically flexible portion of the fuel line.
  • the Abklemm driving is designed to disconnect at least one elastically flexible portion of a arranged between the tank container and the internal combustion engine fuel line and at the same time at least one vent line and release it again.
  • a vent line is connected to a vent and / or ventilation opening of the tank.
  • the Abklemm in particular including all essential components, on a frame construction, in particular a handle device (handle bar) of the soil compaction device is arranged.
  • the fuel line is also preferably arranged at least in sections, and in particular the elastically flexible section on this frame construction.
  • a start-stop device or a combined device gas actuation function and start-stop function may be provided in an analogous manner, as explained above.
  • Fig. 1 shows a known from the prior art, designed as a rammer Bodenverdichtungs réelle 10.
  • the soil compaction device 10 comprises a base 20 with a compression plate 21 and a superstructure 30.
  • an internal combustion engine 31 for driving the compression plate 21 and a tank container 32 for receiving Fuel for the operation of the internal combustion engine 31 is arranged.
  • a protective frame construction 33 which also serves for an operator as a grip device or handle.
  • a manually operated gas actuator 40 is attached to the speed or power setting of the internal combustion engine 31.
  • the gas actuator 40 according to the invention with a Abklemm adopted for interrupting the flow of fuel from the tank container 32 to the engine 31 is coupled, as explained below.
  • Fig. 2 shows schematically such a gas actuator 40 with a lever or throttle lever 41, which can be manually placed in different positions.
  • Fig. 2a shows the lever 41 in an operating position and the Fig. 2b shows the same lever 41 in a stop position. Between these positions, an idle position, not shown, may be provided.
  • the adjusting lever 41 is pivotally mounted on a holder 60 by means of a pivot joint 42.
  • the position of the control lever 41 is transmitted by means of a linkage or Bowden cable 45 to a carburetor device of the internal combustion engine 31, whereby the speed and / or the power of the internal combustion engine 31 can be adjusted situation required.
  • the internal combustion engine 31 can also be switched off or shut down by means of the adjusting lever 41.
  • the lever 41 from the in Fig. 2a shown operating position in the in Fig. 2b to move shown stop position, which is indicated by the movement arrow A.
  • a portion of a fuel line which connects the tank container 32 with the internal combustion engine 31, is pressed against a rigid clamping jaw 61 and squeezed together, whereby the fuel flow from the tank container 32 to the internal combustion engine 31 is effectively interrupted or clamped off. In this way it can be prevented that, in the switched-off state, fuel continues to enter the engine or its carburetor, which is undesirable.
  • the pivot lever 41 is formed with an over the pivot joint 42 projecting and here angled example 43, at the axial end of a rotatable roller 46 is arranged.
  • a rotatable roller 46 When moving the control lever 41 in the stop position (arrow A) kinematic conditionally compressed the section 50 of the fuel line by means of the roller 46.
  • the roller 46 prevents excessive frictional and / or shear forces due to the relative movement between the extension 43 of the control lever 41 and the outer jacket of the portion 50 of the fuel line.
  • Fig. 3 shows another embodiment. Identical and / or functionally identical components are designated by the same reference numerals. The illustrations show the same lever 41 in one first operating position ( Fig. 3a ), in a second operating position or idling or starting position ( Fig. 3b ) and in a stop position ( Fig. 3c ). Hereinafter, only the essential differences from the first embodiment of the Fig. 2 received.
  • the adjusting lever 41 is formed with an eccentric cam 44, which in the stop position ( Fig. 3c ) indirectly via a movable pressure piece or clamping piece 70 presses the flexible elastic portion 50 of the fuel line against the rigid jaw 61, whereby the fuel flow is clamped by the fuel line.
  • the movable pressure piece 70 transmits the clamping force applied by the cam 44 and likewise absorbs the frictional and / or pushing forces resulting from the relative movement.
  • the movable pressure piece 70 also allows a flat clamping whereby the fuel flow can be interrupted very reliable. Trained as a simple sheet metal part and movably mounted pressure piece 70 is guided captive on the jaw 61 and can move transversely to the longitudinal direction L of the portion 50 of the fuel line.
  • the return movement after power relief is effected by the elastic restoring forces of the portion 50 of the fuel line.
  • the rigid jaw 61 is fixed by means of screws 62 to the holder 60, so that the entire gas actuator 40 can be mounted together with the Abklemm worn as a unit by z. B. the bracket 60 is attached to the frame structure 33.
  • Fig. 4 shows a further embodiment. Identical and / or functionally identical components are designated by the same reference numerals.
  • the illustration shows the control lever 41 in a first operating position, which in the Fig. 3a corresponds shown operating position.
  • Fig. 3a corresponds shown operating position.
  • the section 50 is a portion of the fuel line connecting the tank container 32 to the engine 31, as previously discussed.
  • the section 51 is the section of a vent line, which serves for venting and / or ventilation of the tank 32. Both line sections 50 and 51 are simultaneously clamped by means of the cam 44 and the movable clamping piece 70 when the adjusting lever 41 is brought from the operating position shown in the direction A in a stop position, as explained above. As a result, for example, the unwanted leakage of fuel and / or fuel vapors can be effectively prevented by the tank ventilation.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soil Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Combustion & Propulsion (AREA)
  • Architecture (AREA)
  • Road Paving Machines (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Description

Die Erfindung betrifft ein Bodenverdichtungsgerät mit einem Verbrennungsmotor und mit einem Tankbehälter zur Aufnahme von Kraftstoff für den Betrieb dieses Verbrennungsmotors. Bei dem Bodenverdichtungsgerät handelt es sich bevorzugt um ein handgeführtes Bodenverdichtungsgerät wie insbesondere einen Stampfer, ein Vibrationsplattengerät oder dergleichen.The invention relates to a soil compaction device with an internal combustion engine and with a tank container for receiving fuel for the operation of this internal combustion engine. The soil compacting device is preferably a hand-held soil compacting device such as in particular a rammer, a vibrating plate device or the like.

Beim Transport oder bei längerer Lagerung eines solchen Bodenverdichtungsgeräts kann Kraftstoff vom Tankbehälter in den Verbrennungsmotor gelangen, was unerwünscht ist. Besonders anfällig sind Verbrennungsmotoren mit einer Membranvergasereinrichtung, da bei Erschütterungen von der Membranvergasereinrichtung Kraftstoff angesaugt und in den Verbrennungsmotor gefördert wird. Es ist daher bekannt, einen sogenannten Kraftstoffhahn (Benzinhahn) vorzusehen, mit dem sich ein Kraftstofffluss vom Tankbehälter zum Verbrennungsmotor bzw. dessen Vergasereinrichtung unterbrechen lässt. In der Praxis werden solche Kraftstoffhähne häufig nicht benutzt. Aus dem Stand der Technik (vgl. DE 195 49 113 C1 ) ist daher die Kombination einer manuell betätigbaren Gasbetätigungseinrichtung zur Drehzahl- bzw. Leistungssteuerung des Verbrennungsmotors mit einem Kraftstoffventil bekannt. Hierbei wird über die Betätigung der Gasbetätigungseinrichtung das Ventil automatisch geöffnet bzw. geschlossen. Derartige Lösungen sind in der Praxis jedoch störanfällig, was sich nachteilig auf die Betriebszuverlässigkeit auswirkt.During transport or during prolonged storage of such a soil compaction device fuel from the tank container can get into the engine, which is undesirable. Internal combustion engines with a membrane carburetor device are particularly susceptible, since fuel is sucked in by the membrane carburetor device during vibrations and conveyed into the internal combustion engine. It is therefore known to provide a so-called fuel cock (fuel cock), with which a fuel flow from the tank container to the internal combustion engine or its carburetor device can be interrupted. In practice, such fuel taps are often not used. From the prior art (see. DE 195 49 113 C1 ) is therefore the combination of a manually operable gas actuator for speed or power control of the internal combustion engine with a fuel valve known. In this case, the valve is automatically opened or closed via the actuation of the gas actuating device. However, such solutions are prone to failure in practice, which adversely affects the reliability of operation.

Es ist daher eine Aufgabe der Erfindung ein betreffendes Bodenverdichtungsgerät anzugeben, mit dem eine hohe Betriebszuverlässigkeit gewährleistet werden kann.It is therefore an object of the invention to provide a related soil compaction device with which a high operational reliability can be ensured.

Diese Aufgabe wird gelöst von einem Bodenverdichtungsgerät mit den Merkmalen des Anspruchs 1. Die abhängigen Ansprüche betreffen bevorzugte Weiterbildungen.This object is achieved by a soil compacting device with the features of claim 1. The dependent claims relate to preferred developments.

Das erfindungsgemäße Bodenverdichtungsgerät umfasst einen Verbrennungsmotor und einen Tankbehälter zur Aufnahme von Kraftstoff, wie insbesondere Benzin, für den Betrieb dieses Verbrennungsmotors. Ferner umfasst das Bodenverdichtungsgerät eine manuell betätigbare Gasbetätigungseinrichtung und/oder eine manuell betätigbare Start-Stop-Einrichtung für den Verbrennungsmotor. Weiterhin umfasst das erfindungsgemäße Bodenverdichtungsgerät wenigstens eine Abklemmeinrichtung, welche auf wenigstens einen elastisch flexiblen Abschnitt einer zwischen dem Tankbehälter und dem Verbrennungsmotor, bzw. dem Tankbehälter und einer zum Verbrennungsmotor gehörenden Vergasereinrichtung, angeordneten und diese verbindenden Kraftstoffleitung mechanisch (d. h. z. B. ohne elektrische Stellkomponenten) einwirkt, um den Kraftstofffluss durch diese Kraftstoffleitung bzw. den Kraftstoffdurchfluss unterbrechen und insbesondere abklemmen zu können. Es ist vorgesehen, dass die Abklemmeinrichtung mit der Gasbetätigungseinrichtung und/oder der Start-Stop-Einrichtung mechanisch gekoppelt oder in diese integriert ist.The soil compacting device according to the invention comprises an internal combustion engine and a tank container for holding fuel, such as, in particular, gasoline, for the operation of this internal combustion engine. Furthermore, the soil compaction device comprises a manually operable gas actuation device and / or a manually operable start-stop device for the internal combustion engine. Furthermore, the soil compacting device according to the invention comprises at least one clamping device which acts on at least one elastically flexible section of a fuel line which is arranged between the tank container and the internal combustion engine, or the tank container and a gasifier device belonging to the internal combustion engine and mechanically connects these (ie without electrical adjusting components, for example) in order to interrupt the fuel flow through this fuel line or the fuel flow and in particular to be able to disconnect. It is envisaged that the Abklemmeinrichtung with the gas actuator and / or the start-stop device is mechanically coupled or integrated in this.

Die Abklemmung erfolgt insbesondere dadurch, dass der flexible Abschnitt der Kraftstoffleitung zur Unterbrechung des Kraftstoffflusses an wenigstens einer dafür vorgesehenen Stelle durch Aufbringen einer Kraft (Abklemmkraft) zusammengedrückt bzw. zusammengequetscht wird. Nach Kraftentlastung weitet sich der zusammengedrückte Bereich der Kraftstoffleitung aufgrund elastischer Rückstellkräfte wieder auf und gibt den Kraftstofffluss wieder frei. Während die aus dem Stand der Technik bekannten Ventileinrichtungen in Hinblick auf Erschütterungen, Vibrationen und Verharzungen äußerst empfindlich sind (was bspw. zur Undichtheit führt), zeichnet sich die erfindungsgemäße Lösung in vorteilhafter Weise dadurch aus, dass diese in vielerlei Hinsicht unempfindlich ist. Ferner kann zuverlässig ein unerwünschter Kraftstofffluss unterbrochen werden. Hierdurch wird die Betriebszuverlässigkeit des Bodenverdichtungsgeräts deutlich erhöht. Ferner kann eine aus dem Stand der Technik bekannte Ventileinrichtung, wie oben erläutert, entfallen, wodurch auch Kosten eingespart werden können. Die vorgeschlagene Lösung ist überzeugend einfach, benötigt nur wenig Komponenten und ist äußerst robust.The clamping takes place in particular by the flexible section of the fuel line being compressed or squeezed together to interrupt the fuel flow at at least one point provided for this purpose by applying a force (clamping force). After relieving the force, the compressed area of the fuel line expands due to elastic restoring forces and releases the fuel flow again. While the valve devices known from the prior art are extremely sensitive to shocks, vibrations and gumming (which, for example, leads to leakage), the solution according to the invention is characterized in an advantageous manner by the fact that it is insensitive in many respects. Furthermore, an undesirable fuel flow can be reliably interrupted. As a result, the operational reliability of the soil compaction device is significantly increased. Furthermore, a known from the prior art valve device, as explained above, omitted, whereby costs can be saved. The proposed solution is convincingly simple, requires few components and is extremely robust.

Unter einer Abklemmeinrichtung wird ein einzelnes oder eine Mehrzahl zusammenwirkender Elemente - oder Komponenten - verstanden, die eine Abklemmung der Kraftstoffleitung im Bereich des elastisch flexiblen Abschnitts bewirken können. Zur Abklemmeinrichtung gehören insbesondere zumindest wenigstens ein bewegliches die Abklemmkraft aufbringendes Klemmelement, welches unmittelbar oder mittelbar auf den elastisch flexiblen Abschnitt der Kraftstoffleitung mechanisch einwirkt und die Abklemmung herbei führen kann, und wenigstens ein hierzu die Gegenkraft aufbringendes Element, welches insbesondere starr ausgebildet und unbeweglich angeordnet ist. Der flexibel elastische Abschnitt der Kraftstoffleitung, in dem die Abklemmung stattfindet, ist zumindest abschnittweise zwischen den Wirkflächen dieser korrespondierenden Elemente angeordnet. Konkrete Ausgestaltungsmöglichkeiten sind Gegenstand bevorzugter Weiterbildungen.A clamping device is understood as meaning a single or a plurality of interacting elements-or components-which can cause the fuel line to become jammed in the region of the elastically flexible section. For Abklemmeinrichtung include in particular at least at least one movable clamping force aufbringendes clamping element which acts directly or indirectly on the elastically flexible portion of the fuel line mechanically and can cause the clamping effect, and at least one counterforce force applying element, which is particularly rigid and immovable , The flexible elastic portion of the fuel line, in which the clamping takes place, is at least in sections between arranged the active surfaces of these corresponding elements. Specific design options are the subject of preferred developments.

Bei dem flexiblen Abschnitt handelt es sich bevorzugt um einen Schlauchabschnitt, der insbesondere aus einem kraftstoffresistenten und witterungsbeständigen Material gebildet ist. Bei Alterung oder Materialermüdung kann der betreffende Abschnitt vor Ort, z. B. auf der Baustelle, auch von ungeschultem Personal schnell und einfach ausgewechselt werden. Auch dies trägt zur Erhöhung der Betriebszuverlässigkeit des Bodenverdichtungsgeräts bei.The flexible section is preferably a hose section which is formed, in particular, from a fuel-resistant and weather-resistant material. In the event of aging or material fatigue, the relevant section may be removed on site, e.g. B. at the construction site, even by untrained personnel quickly and easily be replaced. This also contributes to increasing the operational reliability of the soil compaction device.

Es ist vorgesehen, dass die Abklemmeinrichtung mit einer manuell betätigbaren Gasbetätigungseinrichtung zur Einstellung der Leistung bzw. der Drehzahl des Verbrennungsmotors und/oder mit einer manuell betätigbaren Start-Stop-Einrichtung zur Bewerkstelligung einer Start-Stop-Funktion des Verbrennungsmotors mechanisch gekoppelt oder integriert mit dieser ausgebildet ist. Eine Gasbetätigungseinrichtung und eine Start-Stop-Einrichtung können als eine gemeinsame bzw. kombinierte Einrichtung ausgeführt sein. Bevorzugt ist vorgesehen, dass die Gasbetätigungseinrichtung und/oder die Start-Stop-Einrichtung zumindest eine Betriebsstellung oder Startstellung aufweist, bei welcher sich der Verbrennungsmotor im Betrieb befindet oder gestartet werden kann, wobei der Kraftstofffluss vom Tankbehälter zum Verbrennungsmotor freigegeben ist, und wenigstens eine Stopstellung, bei welcher sich der Verbrennungsmotor im abgeschalteten Ruhezustand befindet und der Kraftstofffluss vom Tankbehälter zum Verbrennungsmotor unterbrochen ist. Insbesondere ist vorgesehen, dass beim Abschalten des Verbrennungsmotors durch manuelles Bewegen der Gasbetätigungseinrichtung und/oder der Start-Stop-Einrichtung von der Betriebsstellung bzw. Startstellung in die Stopstellung der Kraftstofffluss zum Verbrennungsmotor mittels der Abklemmeinrichtung automatisch und auf mechanischem Wege, d. h. insbesondere ohne elektrische Stellkomponenten, unterbrochen wird und umgekehrt.It is envisaged that the Abklemmeinrichtung mechanically coupled to a manually operable gas actuating device for adjusting the power or the rotational speed of the internal combustion engine and / or with a manually operable start-stop device for accomplishing a start-stop function of the internal combustion engine or integrated with this is trained. A gas actuator and a start-stop device may be implemented as a common device. It is preferably provided that the gas actuating device and / or the start-stop device has at least one operating position or starting position at which the internal combustion engine is in operation or can be started, wherein the fuel flow is released from the tank container to the engine, and at least one stop position in which the internal combustion engine is in the idle state and the fuel flow from the tank container to the internal combustion engine is interrupted. In particular, it is provided that when switching off the internal combustion engine by manually moving the gas actuator and / or the start-stop device of the operating position or starting position in the stop position of the fuel flow to the engine by means of the Abklemmeinrichtung automatically and mechanically, d. H. in particular without electrical adjusting components, is interrupted and vice versa.

Gemäß einer bevorzugten Weiterbildung ist vorgesehen, dass die Gasbetätigungseinrichtung und/oder die Start-Stop-Einrichtung einen schwenkbaren, vom Bediener manuell zu betätigenden Stellhebel (Gashebel und/oder Ein-Aus-Hebel) oder dergleichen aufweist, der über einen Hebelmechanismus auf den elastisch flexiblen Abschnitt der Kraftstoffleitung mechanisch einwirken kann, um den Kraftstofffluss durch die Kraftstoffleitung abklemmen zu können. In einfacher Weise ist der Hebelmechanismus durch eine über das Schwenkgelenk überstehende Verlängerung des Stellhebels gebildet. Bevorzugt ist der Stellhebel einstückig mit dieser Verlängerung ausgebildet. Diese Verlängerung kann unmittelbar oder mittelbar auf den elastisch flexiblen Abschnitt der Kraftstoffleitung einwirken, um die Abklemmung herbei zu führen. Insbesondere ist vorgesehen, dass zur mittelbaren Abklemmung an der Verlängerung wenigstens eine Rolle oder Walze angeordnet ist, die auf den elastisch flexiblen Abschnitt der Kraftstoffleitung einwirkt, um den Kraftstofffluss durch die Kraftstoffleitung abklemmen zu können. Durch die Verwendung einer Rolle oder einer Walze können übermäßige Reibungs- und Schubkräfte am Außenmantel der Kraftstoffleitung vermieden werden, die zu Verschleiß und zur Beschädigung führen könnten. Die Rolle oder die Walze dient somit als verschleißminderndes Element.According to a preferred embodiment, it is provided that the gas actuating device and / or the start-stop device comprises a pivotable, manually operated by the operator lever (throttle and / or on-off lever) or the like, via a lever mechanism on the elastic flexible section of the fuel line can act mechanically to be able to disconnect the fuel flow through the fuel line can. In a simple way, the lever mechanism is formed by a protruding over the pivot extension of the actuating lever. Preferably, the adjusting lever is integrally formed with this extension. This extension may act directly or indirectly on the elastically flexible portion of the fuel line to cause the clamping. In particular, it is provided that for indirect clamping on the extension at least one roller or roller is arranged, which on the elastically flexible portion the fuel line acts to be able to disconnect the fuel flow through the fuel line can. Using a roller or roller can avoid excessive frictional and shear forces on the outer jacket of the fuel line, which could result in wear and damage. The roller or roller thus serves as a wear-reducing element.

Gemäß einer bevorzugten Weiterbildung ist vorgesehen, dass der Stellhebel mit wenigstens einem Nocken ausgebildet ist, der unmittelbar oder mittelbar auf den elastisch flexiblen Abschnitt der Kraftstoffleitung mechanisch einwirken kann, um den Kraftstofffluss durch die Kraftstoffleitung abklemmen zu können. Bevorzugt ist der Stellhebel einstückig mit dem Nocken ausgebildet. Insbesondere ist vorgesehen, dass wenigstens ein relativ zum elastisch flexiblen Abschnitt der Kraftstoffleitung bewegliches Druckstück umfasst ist, dass eine vom Nocken aufgebrachte Abklemmkraft reibungsfrei auf den elastisch flexiblen Abschnitt der Kraftstoffleitung überträgt, um hierdurch den Kraftstofffluss durch die Kraftstoffleitung abklemmen zu können. Mittels eines solchen kraftübertragenden Elements wird ein direkter reibender Kontakt zwischen dem Nocken und dem elastisch flexiblen Abschnitt der Kraftstoffleitung vermieden. Das kraftübertragende Element dient somit auch als verschleißminderndes Element. Dies wird nachfolgend im Zusammenhang mit den Figuren noch näher erläutert.According to a preferred embodiment, it is provided that the adjusting lever is formed with at least one cam, which can act directly or indirectly on the elastically flexible portion of the fuel line mechanically to be able to disconnect the fuel flow through the fuel line can. Preferably, the adjusting lever is integrally formed with the cam. In particular, it is provided that at least one pressure piece which is movable relative to the elastically flexible section of the fuel line is encompassed in that a clamping force applied by the cam transmits without friction to the elastically flexible section of the fuel line in order thereby to be able to disconnect the fuel flow through the fuel line. By means of such a force-transmitting element a direct rubbing contact between the cam and the elastically flexible portion of the fuel line is avoided. The force-transmitting element thus also serves as a wear-reducing element. This will be explained in more detail below in connection with the figures.

Gemäß einer bevorzugten Weiterbildung ist vorgesehen, dass die Abklemmeinrichtung ausgebildet ist, eine punktuelle Abklemmung des elastisch flexiblen Abschnitts der Kraftstoffleitung zu ermöglichen. Alternativ und/oder ergänzend ist vorgesehen, dass die Abklemmeinrichtung ausgebildet ist, eine Abklemmung des elastisch flexiblen Abschnitts der Kraftstoffleitung entlang eines Längenabschnitts oder eine flächige Abklemmung zu ermöglichen. Ebenso ist bevorzugt vorgesehen, dass die Abklemmeinrichtung ausgebildet ist, um eine mehrfache Abklemmung, bspw. an verschiedenen Stellen des elastisch flexiblen Abschnitts der Kraftstoffleitung, zu ermöglichen.According to a preferred embodiment it is provided that the Abklemmeinrichtung is designed to allow a punctual clamping of the elastically flexible portion of the fuel line. Alternatively and / or additionally it is provided that the Abklemmeinrichtung is designed to allow a clamping of the elastically flexible portion of the fuel line along a longitudinal section or a flat clamping. Likewise, it is preferably provided that the Abklemmeinrichtung is designed to allow a multiple clamping, for example. At different points of the elastically flexible portion of the fuel line.

Gemäß einer bevorzugten Weiterbildung ist vorgesehen, dass die Abklemmeinrichtung ausgebildet ist, wenigstens einen elastisch flexiblen Abschnitt einer zwischen dem Tankbehälter und dem Verbrennungsmotor angeordneten Kraftstoffleitung und gleichzeitig wenigstens eine Entlüftungsleitung abklemmen und wieder freigeben zu können. Eine solche Entlüftungsleitung ist an eine Ent- und/oder Belüftungsöffnung des Tankbehälters angeschlossen. Damit kann das Austreten von Kraftstoff bei abgeschaltetem Verbrennungsmotor, bspw. während des Transports des Bodenverdichtungsgeräts, wirkungsvoll verhindert werden, während die erforderliche Belüftung des Tankbehälters im Betrieb gewährleistet bleibt. Durch das gleichzeitige Verschließen der Entlüftungsleitung wird auch das u. U. schädliche Austreten von Kraftstoffdämpfen vermieden. Nach dem gleichen Prinzip können auch mehr als zwei Leitungen abgeklemmt werden.According to a preferred embodiment it is provided that the Abklemmeinrichtung is designed to disconnect at least one elastically flexible portion of a arranged between the tank container and the internal combustion engine fuel line and at the same time at least one vent line and release it again. Such a vent line is connected to a vent and / or ventilation opening of the tank. Thus, the leakage of fuel when the internal combustion engine is switched off, for example, during transport of the soil compaction device, can be effectively prevented, while the required ventilation of the tank container is ensured during operation. By simultaneously closing the vent line and the u. U. harmful leakage of fuel vapors avoided. By the same principle, more than two lines can be disconnected.

Gemäß einer bevorzugten Weiterbildung ist vorgesehen, dass die Abklemmeinrichtung, insbesondere einschließlich aller wesentlicher Komponenten, an einer Rahmenkonstruktion wie insbesondere einer Griffeinrichtung (Griffbügel) des Bodenverdichtungsgeräts angeordnet ist. Bevorzugt ist gleichfalls auch die Kraftstoffleitung zumindest abschnittsweise und insbesondere der elastisch flexible Abschnitt an dieser Rahmenkonstruktion angeordnet.According to a preferred embodiment, it is provided that the Abklemmeinrichtung, in particular including all essential components, on a frame construction, in particular a handle device (handle bar) of the soil compaction device is arranged. Likewise, the fuel line is also preferably arranged at least in sections, and in particular the elastically flexible section on this frame construction.

In nicht einschränkender Weise wird nachfolgend die Erfindung anhand bevorzugter Ausführungsbeispiele im Zusammenhang mit den Figuren näher erläutert. Es zeigen:

Fig. 1
ein Bodenverdichtungsgerät in einer perspektivischen Ansicht;
Fig. 2
ein erstes Ausführungsbeispiel einer Abklemmeinrichtung in zwei schematischen Ansichten;
Fig. 3
ein zweites Ausführungsbeispiel einer Abklemmeinrichtung in mehreren perspektivischen Ansichten; und
Fig. 4
ein drittes Ausführungsbeispiel einer Abklemmeinrichtung in einer perspektivischen Ansicht.
In a non-limiting manner, the invention will be explained in more detail below with reference to preferred exemplary embodiments in conjunction with the figures. Show it:
Fig. 1
a soil compaction device in a perspective view;
Fig. 2
a first embodiment of a Abklemmeinrichtung in two schematic views;
Fig. 3
a second embodiment of a Abklemmeinrichtung in several perspective views; and
Fig. 4
a third embodiment of a Abklemmeinrichtung in a perspective view.

Die Ausführungsbeispiele sind im Zusammenhang mit einer Gasbetätigungseinrichtung dargestellt und erläutert. Anstelle einer solchen Gasbetätigungseinrichtung kann in analoger Weise auch eine Start-Stop-Einrichtung oder eine kombinierte Einrichtung (Gasbetätigungsfunktion und Start-Stop-Funktion) vorgesehen sein, wie obenstehend erläutert.The exemplary embodiments are illustrated and explained in connection with a gas actuation device. Instead of such a gas actuator, a start-stop device or a combined device (gas actuation function and start-stop function) may be provided in an analogous manner, as explained above.

Fig. 1 zeigt ein aus dem Stand der Technik bekanntes, als Stampfer ausgebildetes Bodenverdichtungsgerät 10. Das Bodenverdichtungsgerät 10 umfasst einen Unterbau 20 mit einer Verdichtungsplatte 21 und einen Oberbau 30. Im Oberbau 30 ist ein Verbrennungsmotor 31 zum Antrieb der Verdichtungsplatte 21 und ein Tankbehälter 32 zur Aufnahme von Kraftstoff für den Betrieb des Verbrennungsmotors 31 angeordnet. Zum Oberbau 30 gehört ferner eine schützende Rahmenkonstruktion 33 die gleichfalls für einen Bediener als Griffeinrichtung bzw. Griffbügel dient. An der Rahmenkonstruktion 33 ist eine manuell zu betätigende Gasbetätigungseinrichtung 40 angebracht, zur Drehzahl- bzw. Leistungseinstellung des Verbrennungsmotors 31. Die Gasbetätigungseinrichtung 40 ist erfindungsgemäß mit einer Abklemmeinrichtung zur Unterbrechung des Kraftstoffflusses vom Tankbehälter 32 zum Verbrennungsmotor 31 gekoppelt, wie nachfolgend erläutert. Fig. 1 shows a known from the prior art, designed as a rammer Bodenverdichtungsgerät 10. The soil compaction device 10 comprises a base 20 with a compression plate 21 and a superstructure 30. In the superstructure 30 is an internal combustion engine 31 for driving the compression plate 21 and a tank container 32 for receiving Fuel for the operation of the internal combustion engine 31 is arranged. To the superstructure 30 also includes a protective frame construction 33 which also serves for an operator as a grip device or handle. To the frame structure 33, a manually operated gas actuator 40 is attached to the speed or power setting of the internal combustion engine 31. The gas actuator 40 according to the invention with a Abklemmeinrichtung for interrupting the flow of fuel from the tank container 32 to the engine 31 is coupled, as explained below.

Fig. 2 zeigt schematisch eine solche Gasbetätigungseinrichtung 40 mit einem Stellhebel bzw. Gashebel 41, der manuell in verschiedene Stellungen gebracht werden kann. Fig. 2a zeigt den Stellhebel 41 in einer Betriebsstellung und die Fig. 2b zeigt den selben Stellhebel 41 in einer Stopstellung. Zwischen diesen Stellungen kann eine nicht gezeigte Leerlaufstellung vorgesehen sein. Der Stellhebel 41 ist mittels eines Schwenkgelenks 42 schwenkbar an einer Halterung 60 gelagert. Die Stellung des Stellhebels 41 wird mittels eines Gestänges oder Bowdenzugs 45 auf eine Vergasereinrichtung des Verbrennungsmotors 31 übertragen, wodurch die Drehzahl und/oder die Leistung des Verbrennungsmotors 31 situationserforderlich eingestellt werden kann. Fig. 2 shows schematically such a gas actuator 40 with a lever or throttle lever 41, which can be manually placed in different positions. Fig. 2a shows the lever 41 in an operating position and the Fig. 2b shows the same lever 41 in a stop position. Between these positions, an idle position, not shown, may be provided. The adjusting lever 41 is pivotally mounted on a holder 60 by means of a pivot joint 42. The position of the control lever 41 is transmitted by means of a linkage or Bowden cable 45 to a carburetor device of the internal combustion engine 31, whereby the speed and / or the power of the internal combustion engine 31 can be adjusted situation required.

Ferner kann der Verbrennungsmotor 31 mittels des Stellhebels 41 auch abgeschaltet bzw. stillgesetzt werden. Hierzu ist der Stellhebel 41 aus der in Fig. 2a gezeigten Betriebsstellung in die in der Fig. 2b gezeigte Stopstellung zu bewegen, was mit dem Bewegungspfeil A angedeutet ist. Hierbei wird gleichzeitig ein mit 50 bezeichneter Abschnitt einer Kraftstoffleitung, welche den Tankbehälter 32 mit dem Verbrennungsmotor 31 verbindet, gegen eine starre Klemmbacke 61 gepresst und hierbei zusammengedrückt bzw. zusammengequetscht, wodurch der Kraftstofffluss vom Tankbehälter 32 zum Verbrennungsmotor 31 wirkungsvoll unterbrochen bzw. abgeklemmt wird. Hierdurch kann verhindert werden, dass im abgeschalteten Zustand weiterhin Kraftstoff in den Motor bzw. dessen Vergasereinrichtung gelangt, was unerwünscht ist.Furthermore, the internal combustion engine 31 can also be switched off or shut down by means of the adjusting lever 41. For this purpose, the lever 41 from the in Fig. 2a shown operating position in the in Fig. 2b to move shown stop position, which is indicated by the movement arrow A. At the same time, a portion of a fuel line, which connects the tank container 32 with the internal combustion engine 31, is pressed against a rigid clamping jaw 61 and squeezed together, whereby the fuel flow from the tank container 32 to the internal combustion engine 31 is effectively interrupted or clamped off. In this way it can be prevented that, in the switched-off state, fuel continues to enter the engine or its carburetor, which is undesirable.

Die Abklemmung des Abschnitts 50 der Kraftstoffleitung erfolgt mittels einer Abklemmeinrichtung. Hierzu ist der Schwenkhebel 41 mit einer über das Schwenkgelenk 42 überstehenden und hier beispielhaft abgewinkelten Verlängerung 43 ausgebildet, an deren axialem Ende eine drehbare Rolle 46 angeordnet ist. Beim Bewegen des Stellhebels 41 in die Stopstellung (Pfeil A) wird kinematische bedingt der Abschnitt 50 der Kraftstoffleitung mittels der Rolle 46 zusammengedrückt. Die Rolle 46 verhindert übermäßige Reibungs- und/oder Schubkräfte infolge der Relativbewegung zwischen der Verlängerung 43 des Stellhebels 41 und dem Außenmantel des Abschnitts 50 der Kraftstoffleitung.The clamping of the section 50 of the fuel line by means of a Abklemmeinrichtung. For this purpose, the pivot lever 41 is formed with an over the pivot joint 42 projecting and here angled example 43, at the axial end of a rotatable roller 46 is arranged. When moving the control lever 41 in the stop position (arrow A) kinematic conditionally compressed the section 50 of the fuel line by means of the roller 46. The roller 46 prevents excessive frictional and / or shear forces due to the relative movement between the extension 43 of the control lever 41 and the outer jacket of the portion 50 of the fuel line.

Wird der Stellhebel 41 aus der Stopstellung (Fig. 2b) in eine Betriebsstellung bewegt, was mit dem Bewegungspfeil B angedeutet ist, wird die Abklemmung des Abschnitts 50 aufgehoben. Infolge der Kraftentlastung weitet sich der zusammengedrückte Bereich der Kraftstoffleitung aufgrund elastischer Rückstellkräfte wieder auf und gibt den Kraftstofffluss wieder frei, wodurch der Verbrennungsmotor 31 gestartet und betrieben werden kann. Es ist somit erforderlich, dass zumindest der Abschnitt 50 der Kraftstoffleitung, in dem die Abklemmung stattfindet, aus einem elastisch flexiblen Material gebildet ist.If the adjusting lever 41 from the stop position ( Fig. 2b ) is moved to an operating position, which is indicated by the movement arrow B, the clamping of the portion 50 is released. As a result of the force relief, the compressed region of the fuel line widens again due to elastic restoring forces and releases the fuel flow again, as a result of which the internal combustion engine 31 can be started and operated. It is thus necessary that at least the portion 50 of the fuel line, in which the clamping takes place, is formed of an elastically flexible material.

Fig. 3 zeigt eine anderes Ausführungsbeispiel. Gleiche und/oder funktionsgleiche Komponenten sind mit den selben Bezugszeichen benannt. Die Darstellungen zeigen den selben Stellhebel 41 in einer ersten Betriebsstellung (Fig. 3a), in einer zweiten Betriebsstellung bzw. Leerlauf- oder Startstellung (Fig. 3b) und in einer Stopstellung (Fig. 3c). Nachfolgend wird nur auf die wesentlichen Unterschiede zum ersten Ausführungsbeispiel der Fig. 2 eingegangen. Fig. 3 shows another embodiment. Identical and / or functionally identical components are designated by the same reference numerals. The illustrations show the same lever 41 in one first operating position ( Fig. 3a ), in a second operating position or idling or starting position ( Fig. 3b ) and in a stop position ( Fig. 3c ). Hereinafter, only the essential differences from the first embodiment of the Fig. 2 received.

Abweichend zum ersten Ausführungsbeispiel der Fig. 2 ist der Stellhebel 41 mit einem exzentrischen Nocken 44 ausgebildet, der in der Stopstellung (Fig. 3c) mittelbar über ein bewegliches Druckstück bzw. Klemmstück 70 den flexibel elastischen Abschnitt 50 der Kraftstoffleitung gegen die starre Klemmbacke 61 presst, wodurch der Kraftstofffluss durch die Kraftstoffleitung abgeklemmt wird. Das bewegliche Druckstück 70 überträgt die vom Nocken 44 aufgebrachte Abklemmkraft und nimmt gleichfalls die aus der Relativbewegung resultierenden Reibungs- und/oder Schubkräfte auf. Das bewegliche Druckstück 70 ermöglicht zudem eine flächige Abklemmung wodurch der Kraftstofffluss sehr zuverlässig unterbrochen werden kann. Das als einfaches Blechformteil ausgebildete und beweglich gelagerte Druckstück 70 ist verliersicher an der Klemmbacke 61 geführt und kann sich quer zur Längserstreckungsrichtung L des Abschnitts 50 der Kraftstoffleitung bewegen. Die Rückstellbewegung nach Kraftentlastung wird durch die elastischen Rückstellkräfte des Abschnitts 50 der Kraftstoffleitung bewirkt. Die starre Klemmbacke 61 ist mittels von Schrauben 62 an der Halterung 60 befestigt, so dass die gesamte Gasbetätigungseinrichtung 40 zusammen mit der Abklemmeinrichtung als Einheit montiert werden kann, indem z. B. die Halterung 60 an der Rahmenkonstruktion 33 befestigt wird.Notwithstanding the first embodiment of Fig. 2 the adjusting lever 41 is formed with an eccentric cam 44, which in the stop position ( Fig. 3c ) indirectly via a movable pressure piece or clamping piece 70 presses the flexible elastic portion 50 of the fuel line against the rigid jaw 61, whereby the fuel flow is clamped by the fuel line. The movable pressure piece 70 transmits the clamping force applied by the cam 44 and likewise absorbs the frictional and / or pushing forces resulting from the relative movement. The movable pressure piece 70 also allows a flat clamping whereby the fuel flow can be interrupted very reliable. Trained as a simple sheet metal part and movably mounted pressure piece 70 is guided captive on the jaw 61 and can move transversely to the longitudinal direction L of the portion 50 of the fuel line. The return movement after power relief is effected by the elastic restoring forces of the portion 50 of the fuel line. The rigid jaw 61 is fixed by means of screws 62 to the holder 60, so that the entire gas actuator 40 can be mounted together with the Abklemmeinrichtung as a unit by z. B. the bracket 60 is attached to the frame structure 33.

Fig. 4 zeigt ein weiteres Ausführungsbeispiel. Gleiche und/oder funktionsgleiche Komponenten sind mit den selben Bezugszeichen benannt. Die Darstellung zeigt den Stellhebel 41 in einer ersten Betriebsstellung, welche der in der Fig. 3a gezeigten Betriebsstellung entspricht. Nachfolgend wird nur auf die wesentlichen Unterschiede gegenüber dem zweiten Ausführungsbeispiel der Fig. 3 eingegangen. Fig. 4 shows a further embodiment. Identical and / or functionally identical components are designated by the same reference numerals. The illustration shows the control lever 41 in a first operating position, which in the Fig. 3a corresponds shown operating position. Hereinafter, only the essential differences from the second embodiment of the Fig. 3 received.

Abweichend zum zweiten Ausführungsbeispiel der Fig. 3 sind zwischen dem beweglichen Druckstück 70 und der Klemmbacke 61 zwei Leitungsabschnitte 50 und 51 angeordnet. Beim Abschnitt 50 handelt es sich um einen Abschnitt der Kraftstoffleitung, welche den Tankbehälter 32 mitdem Verbrennungsmotor 31 verbindet, wie zuvor erläutert. Beim Abschnitt 51 handelt es sich um den Abschnitt einer Entlüftungsleitung, die der Entlüftung und/oder der Belüftung des Tankbehälters 32 dient. Beide Leitungsabschnitte 50 und 51 werden mittels des Nockens 44 und des beweglichen Klemmstücks 70 gleichzeitig abgeklemmt, wenn der Stellhebel 41 aus der gezeigten Betriebsstellung in der Richtung A in eine Stopstellung gebracht wird, wie zuvor erläutert. Hierdurch kann bspw. auch das unerwünschte Austreten von Kraftstoff und/oder Kraftstoffdämpfen durch die Tankentlüftung wirkungsvoll verhindert werden.Deviating from the second embodiment of the Fig. 3 between the movable pressure piece 70 and the jaw 61 two line sections 50 and 51 are arranged. The section 50 is a portion of the fuel line connecting the tank container 32 to the engine 31, as previously discussed. The section 51 is the section of a vent line, which serves for venting and / or ventilation of the tank 32. Both line sections 50 and 51 are simultaneously clamped by means of the cam 44 and the movable clamping piece 70 when the adjusting lever 41 is brought from the operating position shown in the direction A in a stop position, as explained above. As a result, for example, the unwanted leakage of fuel and / or fuel vapors can be effectively prevented by the tank ventilation.

Die Merkmale der zuvor erläuterten Ausführungsbeispiele könne miteinander kombiniert werden, sofern sich hieraus kein technischer Widerspruch ergibt. Ferner kann eine zuvor erläuterte Abklemmeinrichtung auch als Einzelmaßnahmen, d. h. ohne die mechanische Kopplung mit einer Gasbetätigungseinrichtung, ausgebildet sein.The features of the previously described embodiments can be combined with each other, provided that there is no technical contradiction. Furthermore, a previously described Abklemmeinrichtung as individual measures, d. H. be formed without the mechanical coupling with a gas actuator.

Claims (10)

  1. A soil compaction device (10), especially a hand-operated soil compaction device, comprising an internal combustion engine (31) and a tank container (32) for receiving fuel for the operation of said internal combustion engine (31), and a manually actuated gas actuation device (40) and/or a start-stop device for the internal combustion engine (31),
    characterized in that
    at least one clamping device is comprised which mechanically acts on an elastically flexible section (50) of a fuel line which connects the tank container (32) with the internal combustion engine (31) in order to interrupt the fuel flow through said fuel line, with said clamping device being mechanically coupled with or integrated in the gas actuation device (40) and/or the start-stop device, and with at least one roll or roller (46) being arranged on the extension (43), which roll or roller acts upon the elastically flexible section (50) of the fuel line in order to enable the disconnection of the fuel flow.
  2. A soil compaction device (10) according to claim 1,
    characterized in that
    the gas actuation device (40) and/or the start-stop device comprises a pivotable actuating lever (41) which can be manually actuated and which acts on the elastically flexible section (50) of the fuel line via a lever mechanism in order to enable the disconnection of the fuel flow.
  3. A soil compaction device (10) according to claim 2,
    characterized in that
    the actuating lever (41) is arranged with an extension (43) protruding beyond its pivot joint (42), with said extension (43) acting directly or indirectly on the elastically flexible section (50) of the fuel line in order to enable the disconnection of the fuel flow.
  4. A soil compaction device (10) according to claim 2,
    characterized in that
    the actuating lever (41) is arranged with a cam (44) which acts directly or indirectly on the elastically flexible section (50) of the fuel line in order to enable the disconnection of the fuel flow.
  5. A soil compaction device (10) according to claim 4,
    characterized in that
    a pressure element (70) is comprised which is movable relative to the elastically flexible section (50) of the fuel line and which transmits a clamping force applied by the cam (44) onto the elastically flexible section (50) of the fuel line in a friction free manner in order to thereby enable the disconnection of the fuel flow.
  6. A soil compaction device (10) according to any one of the preceding claims 1 to 5,
    characterized in that
    the clamping device is arranged to enable a punctiform clamping of the elastically flexible section (50) of the fuel line.
  7. A soil compaction device (10) according to any one of the preceding claims 1 to 5,
    characterized in that
    the clamping device is arranged to enable a planar clamping of the elastically flexible section (50) of the fuel line.
  8. A soil compaction device (10) according to any one of the preceding claims,
    characterized in that
    the clamping device is arranged to enable multiple clamping of the elastically flexible section (50) of the fuel line.
  9. A soil compaction device (10) according to any one of the preceding claims,
    characterized in that
    the clamping device is arranged to enable the clamping of an elastically flexible section (50) of a fuel line arranged between the tank container (32) and the internal combustion engine (31) and simultaneously an elastically flexible section (51) of a vent line of the tank container (32).
  10. A soil compaction device (10) according to any one of the preceding claims,
    characterized in that
    the clamping device is arranged on a frame construction (33) and especially a handle device of said soil compaction device (10).
EP11702395.2A 2010-01-25 2011-01-25 Soil compaction device having a disconnectable fuel line Not-in-force EP2529051B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010005597A DE102010005597A1 (en) 2010-01-25 2010-01-25 Soil compacting device with removable fuel line
PCT/EP2011/000309 WO2011089020A2 (en) 2010-01-25 2011-01-25 Soil compaction device having a disconnectable fuel line

Publications (2)

Publication Number Publication Date
EP2529051A2 EP2529051A2 (en) 2012-12-05
EP2529051B1 true EP2529051B1 (en) 2014-12-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP11702395.2A Not-in-force EP2529051B1 (en) 2010-01-25 2011-01-25 Soil compaction device having a disconnectable fuel line

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US (1) US8523480B2 (en)
EP (1) EP2529051B1 (en)
JP (1) JP5769318B2 (en)
CN (1) CN102859069A (en)
DE (1) DE102010005597A1 (en)
WO (1) WO2011089020A2 (en)

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DE112011105943B4 (en) 2011-12-13 2022-03-10 Husqvarna Ab Engine and shutdown method for an engine

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Also Published As

Publication number Publication date
CN102859069A (en) 2013-01-02
DE102010005597A1 (en) 2011-07-28
WO2011089020A3 (en) 2012-10-11
JP2013518197A (en) 2013-05-20
WO2011089020A2 (en) 2011-07-28
US20130034388A1 (en) 2013-02-07
JP5769318B2 (en) 2015-08-26
US8523480B2 (en) 2013-09-03
EP2529051A2 (en) 2012-12-05

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