EP0938403A1 - Working tool that can be guided in a grab handle - Google Patents

Working tool that can be guided in a grab handle

Info

Publication number
EP0938403A1
EP0938403A1 EP97948910A EP97948910A EP0938403A1 EP 0938403 A1 EP0938403 A1 EP 0938403A1 EP 97948910 A EP97948910 A EP 97948910A EP 97948910 A EP97948910 A EP 97948910A EP 0938403 A1 EP0938403 A1 EP 0938403A1
Authority
EP
European Patent Office
Prior art keywords
hammer
handle
vibration
hammer housing
vibrating
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.)
Granted
Application number
EP97948910A
Other languages
German (de)
French (fr)
Other versions
EP0938403B1 (en
Inventor
Edith Kramp
Rudolf Berger
Thomas Maurer
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 Construction Equipment AG
Original Assignee
Wacker Werke GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wacker Werke GmbH and Co KG filed Critical Wacker Werke GmbH and Co KG
Publication of EP0938403A1 publication Critical patent/EP0938403A1/en
Application granted granted Critical
Publication of EP0938403B1 publication Critical patent/EP0938403B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/006—Vibration damping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/04—Handles; Handle mountings
    • B25D17/043—Handles resiliently mounted relative to the hammer housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/24—Damping the reaction force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/221—Sensors

Definitions

  • the invention relates to a tool that can be guided on a handle with a working body driven by an integrated power drive for striking, pounding or vibrating application of a material to be processed, in particular tamper, vibrating plate or vibrating roller for soil compaction or hammer for demolition and / or drilling work.
  • the object of the invention is to overcome these disadvantages of the previously usual vibration reduction on the handle, i.e. to achieve a vibration reduction without large spring travel and with good efficiency even at low frequency ratios.
  • the solution to this problem is with a tool type mentioned in the fact that the handle by at least one vibration transmission counteracting it, actively controlled or regulated compensation element, which depending on the transferable to it, arising in and / or on the implement a compensating force and / or movement in the potential Vibration transmission path generated from the point of origin of the vibration to it, is actively vibration-damped.
  • FIG. 1 shows a section through a breaker or rotary hammer designed according to the invention
  • Fig. 2 shows a detail section through the handle - the end of the hammer on a larger scale
  • FIG. 3 shows a schematic overview of different embodiments of a device according to the invention.
  • a breaker and / or rotary hammer H designed according to the invention which has a handle GR with a power supply S and one by means of a button TA has actuatable on-off switch EA.
  • a handle and control unit RSE is housed in the handle GR, the function of which will be explained below.
  • a carrier T is connected to the handle GR via a first joint G1 having a first spring-damper element FD1 and a second joint G2 having a second spring-damper element FD2 with joint axes extending transversely to the direction of impact of the tool and parallel to one another , to which a hammer housing HG, which is movable relative to the carrier T and to the handle GR, is connected via a first electromagnetically actuatable actuator AI and a second electromagnetically actuated actuator A2, in which a drive motor M and a receptacle WA which can be driven by the latter for a not shown Impact tool are arranged.
  • the direction of action of the actuators AI and A2 runs parallel to the direction of impact or guidance of the tool.
  • the hammer housing HG carries an auxiliary handle FG for better guidance of the tool.
  • An input sensor S1 is attached to the hammer housing HG, which is suitable for measuring the vibration of the hammer housing and a first measurement signal I, which is dependent on the vibration of the hammer housing HG in the guide direction of the tool
  • a fault sensor S2 is attached to the carrier T. It is suitable for emitting a signal I 2 , which is dependent on the vibration of the handle GR in this guide direction, to the regulating and control unit RSE.
  • the regulating and control unit RSE activates the actuators AI and A2 in such a way that their oscillation amplitudes are controlled in phase opposition to the vibration of the hammer housing HG and their size corresponds as far as possible to the size of the vibration of the hammer housing.
  • the vibration movement of the hammer housing HG is thus compensated for by the opposite vibration movement on the actuators AI and A2 and thereby at least largely by Handle GR kept away.
  • the force otherwise generating the vibration movement of the hammer housing can also be compensated or neutralized by an oppositely directed compensating force and thereby the emergence of a Vibration movement can be suppressed at all.
  • force-exciting actuators are to be used instead of releasing actuators.
  • FIG. 3 shows possible embodiments of hammers with actuators A w giving away and actuators A k giving force, the number of actuators A also varying.
  • a hammer is shown in the upper row on the left, in which the hammer housing is guided on the handle in the direction of vibration of the tool by way of guide rods attached to it and engaging in the handle.
  • an actuator A w is arranged and connected to both, which controls the relative movement between the two so that the handle remains practically at rest.
  • the guides are unnecessary because the handle and hammer housing are connected by two actuators A w arranged parallel and at a mutual distance from one another.
  • each pair w of an acting in Fuhrungscardi of the impact tool weg sacrificeden actuator A and a transverse thereto acting weg sacrificeden actuator A f is to be able to compensate in this transverse direction acting vibrations .
  • VQ vibration source
  • the middle embodiment in the middle row corresponds in its overall arrangement to the embodiment described above, with the difference that the actuator is a force-giving actuator A k , which exerts a controlled compensating force on these other parts of the hammer, that of the vibrating part VQ of the hammer H, counteracts this acting force.
  • the actuator is a force-giving actuator A k , which exerts a controlled compensating force on these other parts of the hammer, that of the vibrating part VQ of the hammer H, counteracts this acting force.
  • the left embodiment in the lower row is a variant corresponding to the embodiment described above with a force-exciting actuator A k , in which the guide of the hammer housing corresponds to the left embodiment in the upper row and the actuator A k compensates the force exerted by the guide the handle GR acts and wants to vibrate it so that the handle GR remains practically at rest.
  • the right-hand embodiment in the lower row corresponds to the embodiment shown above in the middle row, with the difference that a force-exciting actuator A k is provided to compensate for the forces occurring transversely to the guide direction, which emanate from the oscillating or vibrating hammer part VQ and vibrations or Want to excite vibrations of the other parts of the hammer H.
  • the right variant in the middle row differs from all other embodiments in that the handle of the handle is controllably designed to be changeable in shape and to compensate for the change in shape in the vibrations of the hammer housing HG in a known manner depending on the action on the handle from the hammer measured forces is controlled.

Abstract

The invention relates to a working tool comprising a working body driven by an integrated mechanical drive for striking, stamping or vibrating a material to be processed, specially a stamp hammer, a vibrating plate, a vibrating roller for compacting soils, or a hammer for breaking and/or drilling, which can be guided in a grab handle. Vibrations in said grab handle are actively absorbed by at least one actively controlled or regulated compensation element which counteracts vibrations transferred thereto and which, depending on the vibration transferred thereto and/or emerging in the working tool, generates a compensating force and/or movement in the potential trajectory of vibration transfer from the point of emergence towards the handle.

Description

An einem Handgriff führbares Arbeitsgerät Tool that can be carried in one movement
Beschreibungdescription
Die Erfindung betrifft ein an einem Handgriff führbares Arbeitsgerät mit einem von einem integrierten Kraftantrieb angetriebenen Arbeitskörper zum schlagenden, stampfenden oder vibrierenden Beaufschlagen eines zu bearbeitenden Materials, insbesondere Stampfer, Vibrationsplatte oder Vibrationswalze zur Bodenverdichtung oder Hammer für Aufbruch- und/oder Bohrarbeiten.The invention relates to a tool that can be guided on a handle with a working body driven by an integrated power drive for striking, pounding or vibrating application of a material to be processed, in particular tamper, vibrating plate or vibrating roller for soil compaction or hammer for demolition and / or drilling work.
Bei derartigen Geräten ist die Übertragung der Schläge oder Vibrationen auf den Handgriff nicht nur unangenehm, sondern auch gesundheitsschädlich, weshalb die Arbeitszeit entsprechend der Intensität dieser Einwirkung begrenzt ist. Man ist deshalb bemüht, die Schwingungen des Handgriffs möglichst gering zuhalten.With such devices, the transmission of the blows or vibrations to the handle is not only uncomfortable, but also harmful to health, which is why the working time is limited according to the intensity of this action. It is therefore endeavored to keep the vibrations of the handle as low as possible.
Hierzu ist bisher nur eine passive Schwingungsreduzierung durch Feder-Dämpfer-Elemente und träge Massen bekannt, was mit dem Nachteil verbunden ist, daß eine hohe Schwingungsreduzierung nur über große Federwege möglich ist, was seinerseits wieder die Führbarkeit des Arbeitsgeräts beeinträchtigt, und daß ein guter Wirkungsgrad der Schwingungsreduzierung erst bei hohen FrequenzVerhältnissen ωErr/ωEig erreicht wird.For this purpose, only passive vibration reduction through spring-damper elements and inert masses is known, which has the disadvantage that a high vibration reduction is only possible over long spring travel, which in turn impairs the operability of the implement, and that good efficiency the vibration reduction is only achieved at high frequency ratios ω Err / ω Eigen .
Der Erfindung liegt die Aufgabe zugrunde, diese Nachteile der bisher üblichen Schwingungsreduzierung am Handgriff zu über- winden, d.h. eine Schwingungsreduzierung ohne große Federwege und auch bei niedrigen Frequenzverhältnissen mit gutem Wirkungsgrad zu erreichen.The object of the invention is to overcome these disadvantages of the previously usual vibration reduction on the handle, i.e. to achieve a vibration reduction without large spring travel and with good efficiency even at low frequency ratios.
Die Lösung dieser Aufgabe besteht bei einem Arbeitsgerät der eingangs genannten Art darin, daß der Handgriff durch mindestens ein einer Vibrationsübertragung auf ihn entgegenwirkendes, aktiv gesteuertes oder geregeltes Kompensationsglied, das in Abhängigkeit von der zu ihm übertragbaren, im und/oder am Arbeitsgerät entstehenden Vibration eine kompensierende Kraft und/oder Bewegung in dem potentiellen Vibrationsübertragungsweg vom Ent-ste- hungsort der Vibration zu ihm erzeugt, aktiv schwingungs-gedämpft ist .The solution to this problem is with a tool type mentioned in the fact that the handle by at least one vibration transmission counteracting it, actively controlled or regulated compensation element, which depending on the transferable to it, arising in and / or on the implement a compensating force and / or movement in the potential Vibration transmission path generated from the point of origin of the vibration to it, is actively vibration-damped.
Als Ergebnis wird über das gesamte Frequenzband ein hoher, vom Anpreßdruck unabhängiger Wirkungsgrad der Schwingungsreduzierung erreicht. Die Führbarkeit des Arbeitsgeräts wird nicht durch weiche Feder-Dämpfer-Elemente beeinträchtigt. Es sind keine großen trägen Massen erforderlich, die sich auf das Gesamtge- wicht des Geräts auswirken, und außerdem werden unerwünschte Resonanzerscheinungen vermieden.As a result, a high degree of vibration reduction efficiency is achieved over the entire frequency band, regardless of the contact pressure. The operability of the implement is not affected by soft spring-damper elements. There is no need for large inertial masses that affect the overall weight of the device, and undesirable resonance phenomena are avoided.
Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous refinements of the invention result from the subclaims.
Die Erfindung wird nachstehend anhand der in der Zeichnung dargestellten Ausführungsbeispiele noch näher erläutert.The invention is explained in more detail below with reference to the exemplary embodiments shown in the drawing.
Es zeigt:It shows:
Fig. 1 einen Schnitt durch einen erfindungsgemäß ausgebildeten Aufbruch- oder Bohrhammer,1 shows a section through a breaker or rotary hammer designed according to the invention,
Fig. 2 einen Detailschnitt durch das den Handgriff aufweise - de Ende des Hammers in größerem Maßstab undFig. 2 shows a detail section through the handle - the end of the hammer on a larger scale and
Fig. 3 eine schematische Übersicht über unterschiedliche Aus- führungsformen eines erfindungsgemäßen Geräts .3 shows a schematic overview of different embodiments of a device according to the invention.
In den Fig. 1 und 2 ist ein erfindungsgemäß gestalteter Aufbruch- und/oder Bohrhammer H dargestellt, der einen Handgriff GR mit einer Stromzuführung S und einem mittels eines Tasters TA betätigbaren Ein-Aus-Schalter EA aufweist. Im Handgriff GR ist eine Regelungs- und Steuerungseinheit RSE untergebracht, deren Funktion nachfolgend noch erläutert wird. Über ein erstes, ein erstes Feder-Dämpfer-Element FD1 aufweisendes Gelenk Gl und ein zweites, ein zweites Feder-Dämpfer-Element FD2 aufweisendes Gelenk G2 mit quer zur Schlagrichtung des Werkzeugs und zueinander parallel verlaufenden Gelenkachsen ist mit dem Handgriff GR ein Träger T verbunden, an den über einen ersten elektromagnetisch betätigbaren Aktor AI und einen zweiten elektromagne- tisch betätigbaren Aktor A2 ein relativ zum Träger T und zum Handgriff GR bewegliches Hammergehäuse HG angeschlossen ist, in dem ein Antriebsmotor M und eine durch dieses antreibbare Aufnahme WA für ein nicht gezeigtes Schlagwerkzeug angeordnet sind. Die Wirkungsrichtung der Aktoren AI und A2 verläuft parallel zur Schlag- bzw. Führungsrichtung des Werkzeugs. Außerdem trägt das Hammergehäuse HG einen Hilfsgriff FG zur besseren Führung des Werkzeugs .1 and 2, a breaker and / or rotary hammer H designed according to the invention is shown, which has a handle GR with a power supply S and one by means of a button TA has actuatable on-off switch EA. A handle and control unit RSE is housed in the handle GR, the function of which will be explained below. A carrier T is connected to the handle GR via a first joint G1 having a first spring-damper element FD1 and a second joint G2 having a second spring-damper element FD2 with joint axes extending transversely to the direction of impact of the tool and parallel to one another , to which a hammer housing HG, which is movable relative to the carrier T and to the handle GR, is connected via a first electromagnetically actuatable actuator AI and a second electromagnetically actuated actuator A2, in which a drive motor M and a receptacle WA which can be driven by the latter for a not shown Impact tool are arranged. The direction of action of the actuators AI and A2 runs parallel to the direction of impact or guidance of the tool. In addition, the hammer housing HG carries an auxiliary handle FG for better guidance of the tool.
Am Hammergehäuse HG ist ein Eingangssensor Sl angebracht, der geeignet ist, die Vibration des Hammergehäuses zu messen und ein erstes, von der Vibration des Hammergehäuses HG in der Führungsrichtung des Werkzeugs abhängiges Meßsignal I an dieAn input sensor S1 is attached to the hammer housing HG, which is suitable for measuring the vibration of the hammer housing and a first measurement signal I, which is dependent on the vibration of the hammer housing HG in the guide direction of the tool
Regelungs- und Steuereinheit RSE abzugeben.Regulatory and control unit to deliver RSE.
Ein Fehlersensor S2 ist am Träger T angebracht. Er ist geeignet, ein von der Vibration des Handgriffs GR in dieser Führungsrichtung abhängiges Signal I2 an die Regelungs-und Steuereinheit RSE abzugeben.A fault sensor S2 is attached to the carrier T. It is suitable for emitting a signal I 2 , which is dependent on the vibration of the handle GR in this guide direction, to the regulating and control unit RSE.
Aufgrund der Eingangssignale I^ und I2 werden von der Regelungsund Steuereinheit RSE die Aktoren AI und A2 derart aktiviert, daß ihre Schwingungsamplituden in Gegenphase zur Vibration des Hammergehäuses HG gesteuert sind und in ihrer Größe möglichst weitgehend der Größe der Vibration des Hammergehäuses entspre- chen. Die Vibrationsbewegung des Hammergehäuses HG wird so durch die entgegengesetzt gerichtete Vibrationsbewegung an den Aktoren AI und A2 kompensiert und dadurch zumindest großenteils vom Handgriff GR ferngehalten.On the basis of the input signals I ^ and I 2 , the regulating and control unit RSE activates the actuators AI and A2 in such a way that their oscillation amplitudes are controlled in phase opposition to the vibration of the hammer housing HG and their size corresponds as far as possible to the size of the vibration of the hammer housing. The vibration movement of the hammer housing HG is thus compensated for by the opposite vibration movement on the actuators AI and A2 and thereby at least largely by Handle GR kept away.
Statt die Vibrationsbewegung des Hammergehäuses durch eine entsprechende, von den weggebenden Aktoren AI und A2 erzeugte Ge- genbewegung zu kompensieren, kann auch die sonst die Vibrations- bewegung des Hammergehäuses erzeugende Kraft durch eine entgegengesetzt gerichtete Ausgleichskraft kompensiert bzw. neutralisiert werden und dadurch das Entstehen einer Vibrationsbewegung überhaupt unterdrückt werden. Hierzu sind statt weggebender Aktoren krafterregende Aktoren einzusetzen.Instead of compensating for the vibration movement of the hammer housing by means of a corresponding counter-movement generated by the actuators AI and A2, the force otherwise generating the vibration movement of the hammer housing can also be compensated or neutralized by an oppositely directed compensating force and thereby the emergence of a Vibration movement can be suppressed at all. For this purpose, force-exciting actuators are to be used instead of releasing actuators.
Die Fig. 3 zeigt mögliche Ausführungsformen von Hämmern mit weggebenden Aktoren Aw und kraftgebenden Aktoren Ak, wobei auch die Zahl der Aktoren A variiert.FIG. 3 shows possible embodiments of hammers with actuators A w giving away and actuators A k giving force, the number of actuators A also varying.
In Fig. 3 ist in der oberen Reihe links ein Hammer dargestellt, bei welchem das Hammergehäuse über daran angebrachte, in den Handgriff eingreifende Führungsstäbe in Schwingungsrichtung des Werkzeugs am Handgriff geführt ist. Zwischen Handgriff GR und Hammergehäuse HG ist ein weggebender Aktor Aw angeordnet und mit beiden verbunden, der die Relativbewegung zwischen beiden so steuert, daß der Handgriff praktisch in Ruhe bleibt.In Fig. 3, a hammer is shown in the upper row on the left, in which the hammer housing is guided on the handle in the direction of vibration of the tool by way of guide rods attached to it and engaging in the handle. Between the handle GR and the hammer housing HG, an actuator A w is arranged and connected to both, which controls the relative movement between the two so that the handle remains practically at rest.
Bei der mittleren Ausführungsform in der ersten Reihe sind die Führungen entbehrlich, weil Handgriff und Hammergehäuse durch zwei parallel im gegenseitigen Abstand angeordnete, weggebende Aktoren Aw verbunden sind.In the middle embodiment in the first row, the guides are unnecessary because the handle and hammer housing are connected by two actuators A w arranged parallel and at a mutual distance from one another.
Die rechte Ausführungsform in der ersten Reihe zeigt zwei Paare von Aktoren, wobei jedes Paar aus einem in Fuhrungsrichtung des Schlagwerkzeug wirkenden, weggebenden Aktor Aw und einem quer dazu wirkenden, weggebenden Aktor Aw besteht, um auch in dieser Querrichtung wirkende Vibrationen kompensieren zu können.The right-hand embodiment, in the first row shows two pairs of actuators, each pair w of an acting in Fuhrungsrichtung of the impact tool weggebenden actuator A and a transverse thereto acting weggebenden actuator A f is to be able to compensate in this transverse direction acting vibrations .
Der in der mittleren Reihe links gezeigte Hammer H ist mit einem weggebenden Aktor Aw versehen, der, wie schematisch dar- gestellt, unmittelbar zwischen dem im Hammergehäuse befindlichen schwingungserregenden Hammerteil VQ (VQ = Vibrationsquelle) , von dem die Vibration ausgeht, und den weiteren Teilen des Hammers H wirkt, so daß der Handgriff GR fest mit dem Hammergehäuse HG verbunden sein kann.The hammer H shown in the middle row on the left is provided with an actuator A w which, as shown schematically, placed directly between the vibrating hammer part VQ (VQ = vibration source) in the hammer housing, from which the vibration originates, and the other parts of the hammer H, so that the handle GR can be firmly connected to the hammer housing HG.
Die mittlere Ausführungsform in der mittleren Reihe entspricht in der Gesamtanordnung der vorstehend beschriebenen Ausfüh- rungsorm mit dem Unterschied, daß der Aktor ein kraftgebender Aktor Ak ist, der auf diese weiteren Teile des Hammers eine gesteuerte kompensierende Kraft ausübt, die der von dem schwingenden Teil VQ des Hammers H ausgehenden, auf diese einwirkenden Kraft entgegenwirkt .The middle embodiment in the middle row corresponds in its overall arrangement to the embodiment described above, with the difference that the actuator is a force-giving actuator A k , which exerts a controlled compensating force on these other parts of the hammer, that of the vibrating part VQ of the hammer H, counteracts this acting force.
Die linke Ausführungsform in der unteren Reihe ist eine der vorstehend beschriebenen Ausführungsform mit krafterregenden Aktor Ak entsprechende Variante, bei welcher die Führung des Hammergehäuses der linken Ausführungsform in der oberen Reihe entspricht und der Aktor Ak die Kraft kompensiert, die von der Führung her auf den Handgriff GR wirkt und diesen in Vibration versetzen möchte, so daß der Handgriff GR praktisch in Ruhe bleibt.The left embodiment in the lower row is a variant corresponding to the embodiment described above with a force-exciting actuator A k , in which the guide of the hammer housing corresponds to the left embodiment in the upper row and the actuator A k compensates the force exerted by the guide the handle GR acts and wants to vibrate it so that the handle GR remains practically at rest.
Die rechte Ausführungsform in der unteren Reihe entspricht der darüber gezeigten Ausführungsform in der mittleren Reihe mit dem Unterschied, daß zusätzlich ein krafterregender Aktor Ak zur Kompensation der quer zur Führungsrichtung auftretenden Kräfte vorgesehen ist, die von dem schwingenden oder vibrierenden Hammerteil VQ ausgehen und Schwingungen oder Vibrationen der weite- ren Teile des Hammers H erregen möchten.The right-hand embodiment in the lower row corresponds to the embodiment shown above in the middle row, with the difference that a force-exciting actuator A k is provided to compensate for the forces occurring transversely to the guide direction, which emanate from the oscillating or vibrating hammer part VQ and vibrations or Want to excite vibrations of the other parts of the hammer H.
Die rechte Variante in der mittleren Reihe unterscheidet sich von allen anderen Ausführungsformen dadurch, daß das Griffstück des Handgriffs steuerbar formveränderlich gestaltet ist und die Formveränderung in die Vibrationen des Hammergehäuses HG kompensierender Weise abhängig von den auf das Griffstück vom Hammer her einwirkenden, auf eine bekannte Weise gemessenen Kräften gesteuert wird. The right variant in the middle row differs from all other embodiments in that the handle of the handle is controllably designed to be changeable in shape and to compensate for the change in shape in the vibrations of the hammer housing HG in a known manner depending on the action on the handle from the hammer measured forces is controlled.

Claims

Patentansprüche claims
1. An einem Handgriff führbares Arbeitsgerät mit einem von einem integrierten Kraftantrieb angetriebenen Arbeitskörper zum schlagenden, stampfenden oder vibrierenden Beaufschlagen eines zu bearbeitenden Materials, insbesondere Stamp- fer, Vibrationsplatte oder Vibrationswalze zur Bodenverdichtung oder Hammer für Aufbruch- und/oder Bohrarbeiten, dadurch gekennzeichnet, daß der Handgriff durch mindestens ein einer Vibrationsübertragung auf ihn entgegenwirkendes, aktiv gesteuertes oder geregeltes Kompensationsglied (AI, A2 ; Ak, A^,) , das in Abhängigkeit von der zu ihm übertragbaren, im und/oder am Arbeitsgerät (H) entstehenden Vibration, eine kompensierende Kraft und/oder Bewegung in dem potententiellen Vibrationsübertragungsweg vom Entstehungs- ort (VQ) der Vibration zu ihm erzeugt, aktiv schwingungs- gedämpft ist.1. Work tool that can be guided on a handle with a working body driven by an integrated power drive for striking, pounding or vibrating application of a material to be processed, in particular tamper, vibrating plate or vibrating roller for soil compaction or hammer for demolition and / or drilling, characterized in that the handle by at least one vibration transmission counteracting it, actively controlled or regulated compensation element (AI, A2; A k , A ^,), depending on the transferable to it, in and / or on the implement (H) arising , a compensating force and / or movement in the potential vibration transmission path from the point of origin (VQ) of the vibration to it is generated, is actively damped.
2. Arbeitsgerät nach Anspruch 1, gekennzeichnet durch mehrere, in dem potentiellen Vibrationsübertragungsweg seriell und/oder parallel zueinander wirkende aktiv geregelte Kom- pensationsglieder (AI, A2 ; A^, Aw) .2. Tool according to claim 1, characterized by a plurality of actively regulated compensation elements (AI, A2; A ^, A w ) which act in series and / or parallel to one another in the potential vibration transmission path.
3. Arbeitsgerät nach Anspruch 1, dadurch gekennzeichnet, daß mehrere in gleicher Richtung wirkend angeordnete Kompensationsglieder (AI, A2 ; Ak, Aw) parallel zueinander vorgese- hen sind.3. Tool according to claim 1, characterized in that a plurality of compensation elements (AI, A2; A k , A w ) arranged in the same direction are provided parallel to one another.
4. Arbeitsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Kompensationsglieder (Ak, Aw) in mindestens zwei verschiedenen Richtungen wirken und in den einzelnen Richtungen gesondert aktiv geregelt sind. 4. Tool according to one of the preceding claims, characterized in that the compensation elements (A k , A w ) act in at least two different directions and are separately actively controlled in the individual directions.
5. Arbeitsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß in dem potentiellen Vibrationsübertragungsweg auch passive Dämpfungsglieder (Gl, G2) vorhanden sind.5. Tool according to one of the preceding claims, characterized in that passive attenuators (Gl, G2) are also present in the potential vibration transmission path.
6. Arbeitsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Griffteil (GRT) des Handgriffs in Abhängigkeit von der zu ihm übertragbaren, im und/oder am Arbeitsgerät (H) entstehenden Vibration ge- regelt formveränderbar ist.6. Tool according to one of the preceding claims, characterized in that the handle part (GRT) of the handle depending on the transferable to it, in and / or on the tool (H) resulting vibration is regulated changeable.
7. Aufbruch- und/oder Bohrhammer nach einem der vorhergehenden Ansprüche mit gegen das Hammergehäuse (HG) abgefedertem Handgriff (GR) , dadurch gekennzeichnet, daß zwischen dem Hammergehäuse und dem Handgriff (GR) mindestens ein Aktor (AI, A2) angeordnet ist, der in Richtung der zur Führung des Hammers (H) stattfindenden Kraftübertragung schwingungsfähig ist und dessen Schwingungsamplitude in Abhängigkeit von einem ersten, der Größe der Vibration des Hammergehäuses (HG) in dieser Richtung entsprechenden Meß- signal (I]_) und/oder einem zweiten, der Vibration des Handgriffs (GR) in dieser Richtung entsprechenden Meßsignal (I2) von einer Regelungs- und Steuereinheit (RSE) in Gegenphase zur Vibration des Hammergehäuses (HG) gesteuert ist.7. Breaking and / or hammer drill according to one of the preceding claims with against the hammer housing (HG) cushioned handle (GR), characterized in that at least one actuator (AI, A2) is arranged between the hammer housing and the handle (GR), which is capable of vibrating in the direction of the force transmission for guiding the hammer (H) and its vibration amplitude as a function of a first measurement signal (I ] _) corresponding to the size of the vibration of the hammer housing (HG) in this direction and / or a second , The vibration of the handle (GR) corresponding measurement signal (I 2 ) in this direction is controlled by a regulating and control unit (RSE) in opposite phase to the vibration of the hammer housing (HG).
8. Aufbruch- und/oder Bohrhammer nach Anspruch 7, dessen Handgriff (GR) über im gegenseitigen Abstand in Richtung quer zur Hammerlängsachse angeordnete Gelenke (Gl, G2) mit dem Hammergehäuse (HG) verbunden ist, dadurch gekennzeichnet, daß der mindestens eine Aktor (AI, A2) zwischen einem Gelenk (Gl, G2) und dem Hammergehäuse (HG) angeordnet ist.8. demolition and / or hammer drill according to claim 7, the handle (GR) of which is arranged at a mutual distance in the direction transverse to the longitudinal axis joints (Gl, G2) with the hammer housing (HG), characterized in that the at least one actuator (AI, A2) between a joint (Gl, G2) and the hammer housing (HG) is arranged.
9. Hammer nach Anspruch 8, dadurch gekennzeichnet, daß zwischen jedem Gelenk (Gl, G2) und dem Hammergehäuse (HG) ein gemäß Anspruch 7 eingerichteter und gesteuerter Aktor (AI, A2) eingefügt ist. 9. Hammer according to claim 8, characterized in that between each joint (Gl, G2) and the hammer housing (HG) is set up according to claim 7 and a controlled actuator (AI, A2) is inserted.
10. Hammer nach Anspruch 8 und 9, dadurch gekennzeichnet, daß die Gelenke (Gl, G2 ) starr an einem gemeinsamen Träger (T) angebracht sind, der über die Aktoren (AI, A2) an das Hammergehäuse (HG) angeschlossen ist.10. Hammer according to claim 8 and 9, characterized in that the joints (Gl, G2) are rigidly attached to a common support (T) which is connected via the actuators (AI, A2) to the hammer housing (HG).
11. Hammer nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, daß die Aktoren (AI, A2) als elektromagnetische Weggeber ausgeführt sind.11. Hammer according to one of claims 7 to 10, characterized in that the actuators (AI, A2) are designed as electromagnetic displacement sensors.
12. Hammer nach einem der Ansprüche 7 bis 11, dadurch gekennzeichnet, daß die Gelenke (Gl, G2) in Grenzen elastisch derart ausgeführt sind, daß sie auch als passive, elastische Dämpfungsglieder in dem Vibrationsübertragungsweg vom Hammergehäuse (HG) zum Handgriff (GR) wirken. 12. Hammer according to one of claims 7 to 11, characterized in that the joints (Gl, G2) are designed to be elastic within limits such that they are also used as passive, elastic damping elements in the vibration transmission path from the hammer housing (HG) to the handle (GR) Act.
EP97948910A 1996-11-12 1997-11-10 Working tool that can be guided in a grab handle Expired - Lifetime EP0938403B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19646622 1996-11-12
DE19646622A DE19646622B4 (en) 1996-11-12 1996-11-12 Tool that can be carried in one movement
PCT/EP1997/006242 WO1998021014A1 (en) 1996-11-12 1997-11-10 Working tool that can be guided in a grab handle

Publications (2)

Publication Number Publication Date
EP0938403A1 true EP0938403A1 (en) 1999-09-01
EP0938403B1 EP0938403B1 (en) 2002-02-06

Family

ID=7811365

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97948910A Expired - Lifetime EP0938403B1 (en) 1996-11-12 1997-11-10 Working tool that can be guided in a grab handle

Country Status (6)

Country Link
US (1) US6076616A (en)
EP (1) EP0938403B1 (en)
JP (1) JP4304545B2 (en)
DE (2) DE19646622B4 (en)
ES (1) ES2172022T3 (en)
WO (1) WO1998021014A1 (en)

Families Citing this family (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19814175C1 (en) * 1998-03-30 1999-11-25 Wacker Werke Kg Handle for a hammer drill and / or chisel
DE19851888C1 (en) * 1998-11-11 2000-07-13 Metabowerke Kg Hammer drill
AU2313400A (en) * 1999-02-10 2000-08-29 Anglo Operations Limited Rock drill handle
DE10052447B4 (en) * 2000-10-23 2008-12-18 Hilti Aktiengesellschaft Beating electric hand tool with vibration reduction on the handle
DE10100378A1 (en) * 2001-01-05 2002-07-25 Bosch Gmbh Robert Device with a vibration isolation device
JP4157382B2 (en) * 2001-04-11 2008-10-01 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Hand-held machine tool with vibration-damping handgrip
DE10130088C2 (en) * 2001-06-21 2003-10-16 Hilti Ag Striking electric hand tool device with active vibration damping
DE10136015A1 (en) 2001-07-24 2003-02-13 Bosch Gmbh Robert Hand-held machine tool has vibration-dampened hand grip of two legs with levers hinged top hand grip legs and machine housing
DE10145464C2 (en) * 2001-09-14 2003-08-28 Wacker Construction Equipment Drill and / or impact hammer with idle control depending on the contact pressure
DE10158266B4 (en) * 2001-11-28 2004-01-15 Robert Bosch Gmbh Device for damping the vibration of a handle of a machine tool
DE10160864A1 (en) * 2001-12-12 2003-06-26 Hilti Ag Axial striking electric hand tool device
DE10162633B4 (en) * 2001-12-20 2012-12-06 Hilti Aktiengesellschaft Stud gun
US6847844B2 (en) * 2002-06-06 2005-01-25 University Of Pittsburgh Of The Commonwealth System Of Higher Education Method of data communication with implanted device and associated apparatus
US20040231865A1 (en) * 2002-07-09 2004-11-25 Giardino David A. Retrofit kit for a modular control apparatus for a power impact tool
DE10254813A1 (en) * 2002-11-23 2004-06-03 Hilti Ag Electric hand machine tool with vibration-decoupled hammer mechanism assembly
GB2399615B (en) * 2003-03-21 2006-03-15 Black & Decker Inc Vibration reduction apparatus for power tool and power tool incorporating such apparatus
DK1818141T3 (en) 2003-03-21 2010-08-23 Black & Decker Inc Vibration reduction device for machine tool and machine tool containing such device
AU2006200537B2 (en) * 2003-03-21 2009-01-08 Black & Decker, Inc. Vibration reduction apparatus for power tool and power tool incorporating such apparatus
DE10316844A1 (en) * 2003-04-11 2004-11-04 Hilti Ag Control of an electric hand machine tool
GB2402098B (en) * 2003-05-21 2007-10-17 Black & Decker Inc Vibration reduction apparatus for power tool and power tool incorporating such apparatus
DE10332109B4 (en) * 2003-07-15 2009-01-15 Wacker Construction Equipment Ag Implement with handle cushioning
EP1646480B8 (en) * 2003-07-15 2009-08-05 Wacker Neuson SE Working tool with damped handle
ATE511960T1 (en) * 2003-09-10 2011-06-15 Makita Corp VIBRATION-FREE HANDLE
DE10346534A1 (en) * 2003-10-07 2005-05-12 Bosch Gmbh Robert Hand tool with a striking mechanism and method for operating the power tool
GB2407789A (en) * 2003-11-04 2005-05-11 Black & Decker Inc Vibration reduction apparatus for a power tool
GB2407790A (en) * 2003-11-04 2005-05-11 Black & Decker Inc Vibration reduction apparatus for a power tool
GB2407791A (en) * 2003-11-04 2005-05-11 Black & Decker Inc Vibration reduction apparatus for a power tool
DE102004019776A1 (en) * 2004-04-23 2005-11-17 Robert Bosch Gmbh Hand tool, in particular drill and / or percussion hammer
JP4647943B2 (en) * 2004-07-06 2011-03-09 株式会社マキタ Reciprocating tool
JP4647957B2 (en) * 2004-08-27 2011-03-09 株式会社マキタ Work tools
DE102004051465A1 (en) * 2004-10-22 2006-04-27 Robert Bosch Gmbh Hand tool with vibration damped pistol handle
EP1674213B1 (en) * 2004-12-23 2008-10-01 BLACK & DECKER INC. Power tool cooling
ATE396841T1 (en) * 2004-12-23 2008-06-15 Black & Decker Inc POWER TOOL HOUSING
EP1674215B1 (en) * 2004-12-23 2016-09-28 Black & Decker Inc. Hammer drill
EP1674211A1 (en) * 2004-12-23 2006-06-28 BLACK & DECKER INC. Power tool housing
GB0428348D0 (en) * 2004-12-24 2005-02-02 Bamford Excavators Ltd Percussion power tool apparatus
DE102005031074A1 (en) * 2005-06-24 2007-01-04 C. & E. Fein Gmbh Powered hand tool with damping device
DE102005038088A1 (en) * 2005-08-11 2007-02-15 Hilti Ag Connecting arrangement between main housing and handle housing
DE102005038091A1 (en) * 2005-08-11 2007-02-15 Hilti Ag Hand tool with vibration reduction
DE102005046432A1 (en) * 2005-09-28 2007-03-29 Robert Bosch Gmbh Electrical machine tool e.g. grinding device, has grip unit, swivelably formed about swivel axis at pivotal point, including vibration damping device, where axis is arranged parallel to longitudinal extension of grip frame of grip unit
JP5041575B2 (en) * 2006-03-07 2012-10-03 日立工機株式会社 Impact tool
WO2007102449A1 (en) * 2006-03-07 2007-09-13 Hitachi Koki Co., Ltd. Electrical power tool
DE102006010892A1 (en) * 2006-03-09 2007-09-13 Robert Bosch Gmbh Machine tool and method for operating a machine tool
DE102006029630A1 (en) * 2006-06-28 2008-01-03 Robert Bosch Gmbh Hand tool
US7413026B2 (en) * 2006-07-01 2008-08-19 Black & Decker Inc. Lubricant system for powered hammer
US7401661B2 (en) * 2006-07-01 2008-07-22 Black & Decker Inc. Lubricant pump for powered hammer
DE102006000374A1 (en) * 2006-07-27 2008-01-31 Hilti Ag Hand tool with decoupling arrangement
DE102006000375A1 (en) * 2006-07-27 2008-01-31 Hilti Ag Hand tool with decoupling arrangement
CA493745A (en) * 2006-10-04 1953-06-16 E. Glassburn William Bridge-connected relay
DE102006052807A1 (en) * 2006-11-09 2008-05-15 Robert Bosch Gmbh Hand tool with a vibration-damped strap handle
DE102006059633B4 (en) * 2006-12-14 2016-12-01 Robert Bosch Gmbh impact drill
DE102007001591A1 (en) * 2007-01-10 2008-07-17 Aeg Electric Tools Gmbh Portable, hand-held machine tool
US8714280B2 (en) * 2007-02-07 2014-05-06 Robert Bosch Gmbh Vibration dampening for a power tool
DE102007000093A1 (en) * 2007-02-15 2008-08-21 Hilti Ag Hand tool
JP2008264935A (en) * 2007-04-20 2008-11-06 Makita Corp Handle of hand tool
JP5376194B2 (en) * 2007-08-27 2013-12-25 日立工機株式会社 Reciprocating tool
US7806201B2 (en) * 2007-07-24 2010-10-05 Makita Corporation Power tool with dynamic vibration damping
DE102007037043A1 (en) * 2007-08-06 2009-02-12 Robert Bosch Gmbh Auxiliary handle device
DE102007055634A1 (en) * 2007-11-21 2009-05-28 Robert Bosch Gmbh Auxiliary handle device
DE102007055843A1 (en) * 2007-12-17 2009-06-25 Hilti Aktiengesellschaft Hand tool with vibration compensator
GB2456805A (en) * 2008-01-24 2009-07-29 Black & Decker Inc Mounting assembly for handle for power tool
GB0801311D0 (en) * 2008-01-24 2008-03-05 Black & Decker Inc Mounting assembly for handle for power tool
DE102008006030A1 (en) * 2008-01-25 2009-07-30 Robert Bosch Gmbh Hand tool, in particular electrically operated hand tool
GB0804964D0 (en) * 2008-03-18 2008-04-16 Black & Decker Inc Hammer
GB0804963D0 (en) * 2008-03-18 2008-04-16 Black & Decker Inc Hammer
JP5128998B2 (en) * 2008-04-04 2013-01-23 株式会社マキタ Hand-held work tool
US20090321101A1 (en) * 2008-06-26 2009-12-31 Makita Corporation Power tool
US7938196B2 (en) * 2009-04-17 2011-05-10 Hilti Aktiengesellschaft Hand-held power tool with vibration-compensating mass
DE102009002589A1 (en) * 2009-04-23 2010-10-28 Hilti Aktiengesellschaft Hand tool
JP5382431B2 (en) * 2009-05-29 2014-01-08 日立工機株式会社 Electric tool
DE102009054648A1 (en) * 2009-12-15 2011-06-16 Robert Bosch Gmbh power tool
JP5502458B2 (en) * 2009-12-25 2014-05-28 株式会社マキタ Impact tool
GB2482523A (en) * 2010-08-05 2012-02-08 Black & Decker Inc Hammer drill comprising rear handle with mounting assembly allowing rotation and linear movement
US20120048580A1 (en) * 2010-09-01 2012-03-01 Hilti Aktiengesellschaft Power tool
JP5535051B2 (en) * 2010-11-22 2014-07-02 株式会社マキタ Power tools
GB201112833D0 (en) * 2011-07-26 2011-09-07 Black & Decker Inc A hammer drill
US9849577B2 (en) 2012-02-03 2017-12-26 Milwaukee Electric Tool Corporation Rotary hammer
WO2013116680A1 (en) 2012-02-03 2013-08-08 Milwaukee Electric Tool Corporation Rotary hammer
DE102012208855A1 (en) * 2012-05-25 2013-11-28 Robert Bosch Gmbh Hand tool
DE102012208913A1 (en) * 2012-05-25 2013-11-28 Robert Bosch Gmbh Percussion unit
JP6070945B2 (en) * 2013-05-28 2017-02-01 日立工機株式会社 Portable work machine
JP6096593B2 (en) * 2013-05-29 2017-03-15 株式会社マキタ Reciprocating work tool
DE102015205172A1 (en) * 2015-03-23 2016-09-29 Robert Bosch Gmbh Machine tool, in particular hand tool, with a motor drive unit and with at least one sensor device
JP6981744B2 (en) 2016-10-07 2021-12-17 株式会社マキタ Hammer drill
JP6757226B2 (en) 2016-10-07 2020-09-16 株式会社マキタ Electric tool
US11400577B2 (en) 2019-06-11 2022-08-02 Makita Corporation Impact tool
US11926030B2 (en) * 2020-08-24 2024-03-12 Makita Corporation Power tool having hammer mechanism
JP2022119301A (en) * 2021-02-04 2022-08-17 株式会社マキタ impact tool
JP2022128006A (en) * 2021-02-22 2022-09-01 株式会社マキタ impact tool

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425245A (en) * 1945-03-30 1947-08-05 Conrad B Johnson Cushion grip for air hammers and the like
JPS54127080A (en) * 1978-03-25 1979-10-02 Makoto Nandate Vibration isolation device in handle of machine in which vibration is formed
US4237987A (en) * 1978-10-27 1980-12-09 Sherman Victor L Percussive tool
WO1981003518A1 (en) * 1980-06-02 1981-12-10 Caterpillar Tractor Co Vibration isolator device for a percussion tool
JPS5946748B2 (en) * 1980-10-22 1984-11-14 一登 背戸 Anti-vibration handle device
SE8107226L (en) * 1981-01-28 1982-07-29 Byggergonomilaboratoriet Hb VIBRATION DISABILITY DEVICE
DE3122979A1 (en) * 1981-06-10 1983-01-05 Hilti AG, 9494 Schaan DRILLING OR CHISEL HAMMER
DE3312195A1 (en) * 1983-04-02 1984-10-11 Wacker-Werke Gmbh & Co Kg, 8077 Reichertshofen HANDMADE HAMMER AND DRILL
DE3410669A1 (en) * 1984-03-23 1985-10-24 Metabowerke GmbH & Co, 7440 Nürtingen DAMPING ELEMENT AND ITS INSTALLATION IN A MOTOR-DRIVEN HAND TOOL
DE3505181A1 (en) * 1985-02-15 1986-08-21 Hilti Ag, Schaan VIBRATING HAND TOOL
DE3521808A1 (en) * 1985-06-19 1987-01-02 Hilti Ag VIBRATING HAND TOOL
PL153526B1 (en) * 1988-03-29 1991-04-30 Politechnika Poznanska Pneumatic impact tool
JP2683911B2 (en) * 1988-04-28 1997-12-03 株式会社芝浦製作所 Vibrating tool
DE3839207A1 (en) * 1988-11-19 1990-05-23 Hilti Ag PORTABLE HAND DEVICE WITH STRIKE
IL105743A0 (en) * 1992-06-11 1993-09-22 Dov Shilkrut Penetrating tool system
JPH0672159A (en) * 1992-07-10 1994-03-15 Mazda Motor Corp Vibration reducing device for vehicle
DE19503526A1 (en) * 1995-02-03 1996-08-08 Bosch Gmbh Robert Hammer drill and / or percussion hammer with removable vibration-damped handle and vibration-dampened handle arrangement for a rotary and / or percussion hammer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9821014A1 *

Also Published As

Publication number Publication date
ES2172022T3 (en) 2002-09-16
JP2001503684A (en) 2001-03-21
WO1998021014A1 (en) 1998-05-22
EP0938403B1 (en) 2002-02-06
DE59706335D1 (en) 2002-03-21
DE19646622B4 (en) 2004-07-01
JP4304545B2 (en) 2009-07-29
US6076616A (en) 2000-06-20
DE19646622A1 (en) 1998-05-20

Similar Documents

Publication Publication Date Title
EP0938403B1 (en) Working tool that can be guided in a grab handle
EP2216141B1 (en) Hand-held machine tool with vibration-damping handle
DE19730356C2 (en) Vibration-damped breaker and / or hammer drill
EP1270151B1 (en) Percussive electric tool with active damping vibration system
EP2072191B1 (en) Hand-held power tool
DE69914375T2 (en) METHOD AND DEVICE FOR VIBRATION CONTROL
EP1404493A1 (en) Hand tool machine comprising a vibration-dampened handle
EP0066779A1 (en) Boring or chiseling hammer
EP3725949B1 (en) Hand-guided implement with decoupled drawbar support
EP1727940A1 (en) Tamping device
WO1998048119A1 (en) Compactor for compacting soil
DE3428553A1 (en) VIBRATION-SAFE SUSPENSION FOR A VIBRATION ROLLER
DE2058038A1 (en) Stamping device for compacting soil, concrete or the like.
EP1674210B1 (en) Tool with main handle mechanically decoupled
EP1221359B1 (en) Vibration isolating device
DE10105687B4 (en) Vibration generator for steerable soil compaction devices
WO2008028652A1 (en) Oscillation exciter
DE10158266B4 (en) Device for damping the vibration of a handle of a machine tool
DE102007023963B4 (en) Device for a vibration exciter
DE102011101075B4 (en) Power-driven hand tool with damping device
EP0446681B1 (en) Vibration damping arrangement for vertical oscillations
DE3447400C2 (en)
DE10332522A1 (en) Power hand tool with vibration isolated handle, has both passive and dynamic vibration isolation between handle and tool housing, with the dynamic isolation controlled by a control unit in conjunction with an acceleration sensor
EP0662371A1 (en) Vibration-damped handle
DE202009004301U1 (en) Soil compacting device with vibration-insulated drawbar

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19980727

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE ES FR GB IT LI NL SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 20010608

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MAURER, THOMAS

Inventor name: BERGER, RUDOLF

Inventor name: KRAMP, EDITH

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES FR GB IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020206

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020206

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020206

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. PATENTANWAELTE

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59706335

Country of ref document: DE

Date of ref document: 20020321

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20020206

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2172022

Country of ref document: ES

Kind code of ref document: T3

EN Fr: translation not filed
RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: WACKER CONSTRUCTION EQUIPMENT AG

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: WACKER-WERKE GMBH & CO. KG TRANSFER- WACKER CONSTR

26N No opposition filed

Effective date: 20021107

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: WACKER CONSTRUCTION EQUIPMENT AG

Free format text: WACKER CONSTRUCTION EQUIPMENT AG#PREUSSENSTRASSE 41#80809 MUENCHEN (DE) -TRANSFER TO- WACKER CONSTRUCTION EQUIPMENT AG#PREUSSENSTRASSE 41#80809 MUENCHEN (DE)

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: WACKER NEUSON SE

Free format text: WACKER CONSTRUCTION EQUIPMENT AG#PREUSSENSTRASSE 41#80809 MUENCHEN (DE) -TRANSFER TO- WACKER NEUSON SE#PREUSSENSTRASSE 41#80809 MUENCHEN (DE)

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: WACKER NEUSON PRODUKTION GMBH & CO. KG

Free format text: WACKER NEUSON SE#PREUSSENSTRASSE 41#80809 MUENCHEN (DE) -TRANSFER TO- WACKER NEUSON PRODUKTION GMBH & CO. KG#PREUSSENSTRASSE 41#80809 MUENCHEN (DE)

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Owner name: WACKER NEUSON PRODUKTION GMBH & CO.KG

Effective date: 20120208

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59706335

Country of ref document: DE

Representative=s name: MUELLER - HOFFMANN & PARTNER PATENTANWAELTE, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59706335

Country of ref document: DE

Representative=s name: MUELLER HOFFMANN & PARTNER PATENTANWAELTE MBB, DE

Effective date: 20120326

Ref country code: DE

Ref legal event code: R081

Ref document number: 59706335

Country of ref document: DE

Owner name: WACKER NEUSON PRODUKTION GMBH & CO. KG, DE

Free format text: FORMER OWNER: WACKER NEUSON SE, 80809 MUENCHEN, DE

Effective date: 20120326

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20121123

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20121122

Year of fee payment: 16

Ref country code: IT

Payment date: 20121122

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20131126

Year of fee payment: 17

Ref country code: SE

Payment date: 20131122

Year of fee payment: 17

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131130

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131110

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20150407

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131111

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59706335

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150602