EP1533084A1 - Vibration damped handle - Google Patents

Vibration damped handle Download PDF

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Publication number
EP1533084A1
EP1533084A1 EP04024899A EP04024899A EP1533084A1 EP 1533084 A1 EP1533084 A1 EP 1533084A1 EP 04024899 A EP04024899 A EP 04024899A EP 04024899 A EP04024899 A EP 04024899A EP 1533084 A1 EP1533084 A1 EP 1533084A1
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EP
European Patent Office
Prior art keywords
handle
power tool
housing
damping
tool according
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
EP04024899A
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German (de)
French (fr)
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EP1533084B1 (en
Inventor
Horst Biersack
Joachim Göbel
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ITW Befestigungssysteme GmbH
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ITW Befestigungssysteme GmbH
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Publication of EP1533084A1 publication Critical patent/EP1533084A1/en
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Publication of EP1533084B1 publication Critical patent/EP1533084B1/en
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Classifications

    • 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
    • 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
    • B25F5/02—Construction of casings, bodies or handles
    • 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

Definitions

  • the invention relates to a striking hand-held power tool, in particular a pneumatic hammer drill, with vibration-damped Handle, wherein the legs of a substantially C-shaped handle below Intermediate arrangement of spring elements are mounted on the tool housing.
  • vibration-damped handles for beating hand-held power tools are already known in a variety of embodiments become.
  • the Handle When using coil springs, the need arises, the Handle separately so that he does not slip sideways, which is quite elaborate Constructions result, as described for example in DE 101 36 015 A1 and WO 02/083369 A1 are described.
  • One from WO 02/38341 A1 known vibration damped handle with a gas-filled cushion as Damping element shows the difficulty that with larger vibrations parts of the handle and the handle can clash, causing, inter alia an increased noise results.
  • a gas filled pillow has Moreover, the disadvantage that with prolonged use the risk of leakage occurs, so then no longer the vibration damping works.
  • the invention is therefore based on the object, a striking hand-held Power tool of the type mentioned in such a way that with simple Construction and easy installation an excellent even silenced Vibration damping is achieved, the degree of damping by a simple replacement of a damping element can be set.
  • the invention provides that on the one, preferably the lower end rotatable about a transverse axis on the tool housing stored handle at the other end locking under interposition a damping buffer made of rubber or cellular foam to the tool housing infected, wherein preferably also the bearing axis with damping material can be wrapped.
  • the inventive arrangement results in an extremely simple construction, wherein the mounting of the lower leg of the handle on the tool housing From the outset gives excellent side guidance, so that the lateral Tilting away the vibration damped mounted handle is not given.
  • This rotatable mounting can be particularly in development of the invention Simply achieve that provided with plugged damping rings Bearing axis of the handle in split bearing shells of the housing and a is mounted separately attached housing bottom part. After plugging the handle for the snap lock at the top becomes the handle below simply swiveled into the bearing shell of the housing and then through attached thereto, preferably bolted, housing bottom part in one rotatably mounted circumferential bearing shell.
  • the hooks under generation appropriate disturbing noises strike on the metal plate can be provided in a further embodiment of the invention that the back of the Metal plate is covered with an elastic damping layer.
  • the damping buffer divided longitudinally from several sections composed of the same or different damping materials is, by which - by appropriate combination of different sections - Adjust almost any desired damping characteristics in the simplest way leaves.
  • the damping buffer is intended to generate an energy-destroying Frictional engagement with tight fit embrace the locking hook, which is a additional improvement in vibration damping results.
  • the handle can very easily be made of two in the area under the metal plate as well as in the hollow bearing axis bolted together half shells Finally, it is also within the scope of the invention lies, a damped connection of the housing and the upper handle leg provide bridging sealing bellows.
  • the beating hand-held power tool shown in the figures has a tool housing 1 with a separately attachable, preferably bolt on, bottom part 1a and a simply attachable vibration-damped Handle 2 on.
  • This vibration damped handle 2 is with a Bearing 3 provided, surrounded by damping rings 4 in bearing shell sections 5a and 5b can be stored on the tool housing 1 or its bottom part 1a are formed.
  • a metal plate 6 At the upper leg 2b of the handle 2 is a metal plate 6 with openings 7 for insertion of a tool housing 1 rigid attached Verrasthaken 8, wherein the openings 7 in the lower region 7a are wider than in the upper area 7b such that in the lower area the hook ends 9 of the Verrasthakens 8 can be introduced while moving are trapped in the upper area 7b behind the plate 6.
  • Verrasthaken 8 On the Verrasthaken 8 is rigidly attached to a stop plate 10, at which a in the one shown Embodiment of two sections 11a and 11b existing Damping buffer 11 is supported, which when inserting the Verrasthakens in the openings 7 of the plate 6 must be compressed so that the hook with Spring force on the occupied with a damping layer 12 back of the metal plate 6 abut.
  • the damping buffer 11 of several sections the optionally made of different material, so different rubber or different cellular foam, can be the damping characteristic for the handle 2 set to a greater extent.
  • the handle 2 With its upper leg 2b on the Verrasthaken 8 infected, for which purpose the Verrasthaken 8 with its hooked ends 9 in the lower portions 7a of the openings 7 of the metal plate 6 is inserted. Then the handle is pulled down, whereby the possibility of breaking the bearing shafts 3 with them surrounding damping rings 4 results in the bearing shells 5a of the housing. Subsequently, the handle 2 moves back up, causing the Hook ends move in the upper narrower portion 7b of the openings 7, where they are caught behind the metal plate 6. Thereafter, the housing bottom part 1a attached below and fastened with a screw.
  • the handle 2 is composed of two shell halves by screwing in the region of the bearing axis 3 and the molded on the shell halves Sleeves 14 are connected to each other.
  • This bivalve construction gives the possibility of a simple insertion of the metal plate 6, for the vibration-damped Connection of the handle 2 with the tool housing 1 necessary is.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Vibration Prevention Devices (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Road Signs Or Road Markings (AREA)
  • Stringed Musical Instruments (AREA)

Abstract

The c-shaped handle (2) can be swiveled around an axle located at the lower segment (2a) in order to insert a vibration absorbing rubber element (11) assembled of a front and a rear segment (11a, 11b) which can be of different levels of rigidity. A flat metal part (6) with hook shaped ends (8, 9) is accommodated inside the rubber elements (11a, 11b) and is stationary joined to the housing (1) of the tool. The hooks (8, 9) engage with matching spaces located at the upper handle segment (2b) when the handle (2) is swiveled into a position ready for use.

Description

Die Erfindung bezieht sich auf ein schlagendes handgeführtes Elektrowerkzeug, insbesondere einen pneumatischen Bohrhammer, mit vibrationsgedämpftem Handgriff, wobei die Schenkel eines im Wesentlichen C-förmigen Handgriffs unter Zwischenordnung von Federelementen am Werkzeuggehäuse befestigt sind.The invention relates to a striking hand-held power tool, in particular a pneumatic hammer drill, with vibration-damped Handle, wherein the legs of a substantially C-shaped handle below Intermediate arrangement of spring elements are mounted on the tool housing.

Derartige vibrationsgedämpfte Handgriffe für schlagende handgeführte Elektrowerkzeuge sind bereits in den unterschiedlichsten Ausführungsformen bekannt geworden. Bei Anwendung von Spiralfedern ergibt sich die Notwendigkeit, den Handgriff gesondert zu führen, sodass er nicht seitlich wegrutscht, was recht aufwändige Konstruktionen zur Folge hat, wie sie beispielsweise in der DE 101 36 015 A1 und der WO 02/083369 A1 beschrieben sind. Ein aus der WO 02/38341 A1 bekannter vibrationsgedämpfter Handgriff mit einem gasgefüllten Kissen als Dämpfungselement zeigt die Schwierigkeit, dass bei größeren Vibrationen Teile des Handgriffs und des Griffs aneinanderschlagen können, wodurch unter anderem eine erhöhte Geräuschentwicklung sich ergibt. Ein gasgefülltes Kissen hat darüber hinaus den Nachteil, dass bei längerer Benutzung die Gefahr eines Undichtwerdens auftritt, sodass dann die Vibrationsdämpfung überhaupt nicht mehr funktioniert.Such vibration-damped handles for beating hand-held power tools are already known in a variety of embodiments become. When using coil springs, the need arises, the Handle separately so that he does not slip sideways, which is quite elaborate Constructions result, as described for example in DE 101 36 015 A1 and WO 02/083369 A1 are described. One from WO 02/38341 A1 known vibration damped handle with a gas-filled cushion as Damping element shows the difficulty that with larger vibrations parts of the handle and the handle can clash, causing, inter alia an increased noise results. A gas filled pillow has Moreover, the disadvantage that with prolonged use the risk of leakage occurs, so then no longer the vibration damping works.

Eine Konstruktion gemäß der WO 03/043785 A1, bei dem zwischen einem Griffteil und einem Befestigungsteil am Gehäuse des handgeführten Elektrowerkzeugs ein elastisches Element zwischengeordnet ist, benötigt ein zusätzliches bewegliches Sicherungselement, wobei nach wie vor bei großen Schlagbelastungen und starken Vibrationen Schwierigkeiten mit der Führung auftreten können.A construction according to WO 03/043785 A1, in which between a handle part and a fixing member to the housing of the hand-held power tool elastic element is interposed, requires an additional movable Fuse element, where still at high impact loads and strong Vibrations difficulties with the guidance can occur.

Der Erfindung liegt daher die Aufgabe zugrunde, ein schlagendes handgeführtes Elektrowerkzeug der eingangs genannten Art so auszugestalten, dass bei einfachem Aufbau und einfacher Montage eine hervorragende noch dazu geräuschgedämpfte Vibrationsdämpfung erzielt wird, deren Dämpfungsgrad sich durch ein einfaches Austauschen eines Dämpfungselements einstellen lässt. The invention is therefore based on the object, a striking hand-held Power tool of the type mentioned in such a way that with simple Construction and easy installation an excellent even silenced Vibration damping is achieved, the degree of damping by a simple replacement of a damping element can be set.

Zur Lösung dieser Aufgabe ist erfindungsgemäß vorgesehen, dass der am einen, vorzugsweise dem unteren, Ende um eine Querachse drehbar am Werkzeuggehäuse gelagerte Handgriff am anderen Ende verrastend unter Zwischenordnung eines Dämpfungspuffers aus Gummi oder Zellschaumstoff an das Werkzeuggehäuse angesteckt ist, wobei bevorzugt auch die Lagerachse mit Dämpfungsmaterial umhüllt sein kann.To achieve this object, the invention provides that on the one, preferably the lower end rotatable about a transverse axis on the tool housing stored handle at the other end locking under interposition a damping buffer made of rubber or cellular foam to the tool housing infected, wherein preferably also the bearing axis with damping material can be wrapped.

Durch die erfindungsgemäße Anordnung ergibt sich ein extrem einfacher Aufbau, wobei die Lagerung des unteren Schenkels des Handgriffs am Werkzeuggehäuse von vorneherein eine hervorragende Seitenführung ergibt, sodass das seitliche Wegkippen des vibrationsgedämpft gelagerten Handgriffs nicht gegeben ist.The inventive arrangement results in an extremely simple construction, wherein the mounting of the lower leg of the handle on the tool housing From the outset gives excellent side guidance, so that the lateral Tilting away the vibration damped mounted handle is not given.

Diese drehbare Lagerung lässt sich in Weiterbildung der Erfindung besonders einfach dadurch erreichen, dass die mit aufgesteckten Dämpfungsringen versehene Lagerachse des Handgriffs in geteilten Lagerschalen des Gehäuses und eines getrennt daran befestigten Gehäusebodenteils gelagert ist. Nach dem Einstecken des Handgriffs für die Steckverrastung am oberen Ende wird der Handgriff unten einfach in die Lagerschale des Gehäuses eingeschwenkt und anschließend durch das daran befestigte, vorzugsweise angeschraubte, Gehäusebodenteil in einer umlaufenden Lagerschale drehgelagert.This rotatable mounting can be particularly in development of the invention Simply achieve that provided with plugged damping rings Bearing axis of the handle in split bearing shells of the housing and a is mounted separately attached housing bottom part. After plugging the handle for the snap lock at the top becomes the handle below simply swiveled into the bearing shell of the housing and then through attached thereto, preferably bolted, housing bottom part in one rotatably mounted circumferential bearing shell.

Mit besonderem Vorteil kann dabei vorgesehen sein, dass am Werkzeuggehäuse oben ein, vorzugsweise als Platte ausgebildeter, starrer Verrasthaken befestigt ist, der den Dämpfungspuffer durchsetzt und dessen Hakenenden in die Öffnungen einer Metallplatte am oberen Schenkel des Handgriffs eingreifen, die oben schmäler als die unteren Einsteckbereiche ausgebildet sind, wobei die Bemessung so getroffen ist, dass in der Montagestellung die Haken in der verengten oberen Position federnd an der Rückseite der Metallplatte anliegen.With particular advantage, it can be provided that on the tool housing above a, preferably designed as a plate, rigid catch hook is attached, which passes through the damping buffer and the hook ends in the openings a metal plate engage the upper leg of the handle, the top narrower than the lower insertion areas are formed, the design so taken is that in the assembled position the hooks in the narrowed upper Position resiliently against the back of the metal plate.

Um dabei zu verhindern, dass bei Vibrationsbewegungen die Haken unter Erzeugung entsprechender störender Geräusche an der Metallplatte anschlagen, kann in weiterer Ausgestaltung der Erfindung vorgesehen sein, dass die Rückseite der Metallplatte mit einer elastischen Dämpfungsschicht belegt ist. In order to prevent that during vibration movements, the hooks under generation appropriate disturbing noises strike on the metal plate, can be provided in a further embodiment of the invention that the back of the Metal plate is covered with an elastic damping layer.

Die vorstehend beschriebene Ausbildung eines Handgriffs lässt sich extrem einfach montieren, indem der Handgriff zunächst oben an den Verrasthaken angesteckt wird und anschließend etwas nach unten gezogen wird, sodass die Lagerachse mit den elastischen Dämpfungsringen in die Lagerschale des Gehäuses eingerastet werden kann. Dabei ergibt sich nach dem Herunterziehen zum Einrasten der Lagerwelle in die Lagerschale des Gehäuses am unteren Ende eine Verschiebung des Verrasthakens in die oberen Bereiche der Öffnungen der Metallplatte, die entsprechend verjüngt ausgebildet sind, sodass ein Wiederaustreten der Haken an dieser Stelle nicht möglich ist. Durch Anstecken oder bevorzugt Anschrauben des Gehäusebodenteils mit der zweiten Lagerschalenhälfte für die Lagerachse des Handgriffs ist die Montage bereits beendet.The above-described formation of a handle is extremely easy Mount by first attaching the handle to the top of the detent hook and then pulled down slightly so that the bearing axis with the elastic damping rings in the bearing shell of the housing can be locked. This results after pulling down for snapping the bearing shaft in the bearing shell of the housing at the bottom of a Displacement of Verrasthakens in the upper regions of the openings of the metal plate, which are formed correspondingly rejuvenated, so a re-emergence the hook is not possible at this point. By attaching or preferably screwing on the housing bottom part with the second bearing shell half for the bearing axis of the handle, the assembly is already finished.

Gemäß einem weiteren Merkmal der vorliegenden Erfindung kann vorgesehen sein, dass der Dämpfungspuffer in Längsrichtung geteilt aus mehreren Abschnitten aus gleichen oder unterschiedlichen Dämpfungsmaterialien zusammengesetzt ist, wodurch sich - durch entsprechende Kombination unterschiedlicher Abschnitte - nahezu jede gewünschte Dämpfungscharakteristik in einfachster Weise einstellen lässt.According to a further feature of the present invention can be provided be that the damping buffer divided longitudinally from several sections composed of the same or different damping materials is, by which - by appropriate combination of different sections - Adjust almost any desired damping characteristics in the simplest way leaves.

Bevorzugt soll dabei der Dämpfungspuffer zur Erzeugung einer Energie-vernichtenden Reibung mit enger Passung den Verrasthaken umgreifen, was eine zusätzliche Verbesserung der Vibrationsdämpfung ergibt.Preferably, the damping buffer is intended to generate an energy-destroying Frictional engagement with tight fit embrace the locking hook, which is a additional improvement in vibration damping results.

Der Handgriff kann in sehr einfacher Weise aus zwei im Bereich unter der Metallplatte sowie in der hohlen Lagerachse miteinander verschraubten Halbschalen zusammengesetzt sein, wobei es schließlich auch noch im Rahmen der Erfindung liegt, einen die gedämpfte Verbindung des Gehäuses und des oberen Handgriffschenkels überbrückenden Dichtungsbalg vorzusehen.The handle can very easily be made of two in the area under the metal plate as well as in the hollow bearing axis bolted together half shells Finally, it is also within the scope of the invention lies, a damped connection of the housing and the upper handle leg provide bridging sealing bellows.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels sowie anhand der Zeichnung. Dabei zeigen:

Fig. 1
eine perspektivische Explosionsdarstellung der wesentlichen Teile eines erfindungsgemäßen schlagenden handgeführten Elektrowerkzeugs mit vibrationsgedämpftem Handgriff,
Fig. 2
eine vergrößerte perspektivische Teilansicht des oberen Endes des Werkzeug-Gehäuses,
Fig. 3
eine vergrößerte teilweise aufgebrochene Ansicht des Griffteils und des anschließenden Teil des Werkzeuggehäuses,
Fig. 4 bis 6
verschiedene Ansichten des Handgriffs der erfindungsgemäßen Anordnung und
Fig. 7
ein vergrößerter Abschnitt VII in Fig. 5.
Further advantages, features and details of the invention will become apparent from the following description of an embodiment and from the drawing. Showing:
Fig. 1
an exploded perspective view of the essential parts of a beating hand-held power tool according to the invention with vibration damped handle,
Fig. 2
an enlarged partial perspective view of the upper end of the tool housing,
Fig. 3
an enlarged partially broken view of the handle part and the subsequent part of the tool housing,
4 to 6
different views of the handle of the inventive arrangement and
Fig. 7
an enlarged portion VII in Fig. 5th

Das in den Figuren dargestellte schlagende handgeführte Elektrowerkzeug weist ein Werkzeug-Gehäuse 1 mit einem gesondert ansetzbaren, vorzugsweise anschraubbaren, Bodenteil 1a und einem einfach ansteckbaren vibrationsgedämpften Handgriff 2 auf. Dieser vibrationsgedämpfte Handgriff 2 ist mit einer Lagerachse 3 versehen, die von Dämpfungsringen 4 umgeben in Lagerschalenabschnitte 5a und 5b lagerbar ist, die am Werkzeug-Gehäuse 1 bzw. dessen Bodenteil 1a angeformt sind. Am oberen Schenkel 2b des Handgriffs 2 ist eine Metallplatte 6 mit Öffnungen 7 zum Einstecken eines am Werkzeug-Gehäuse 1 starr befestigten Verrasthaken 8 angeordnet, wobei die Öffnungen 7 im unteren Bereich 7a breiter sind als im oberen Bereich 7b derart, dass im unteren Bereich die Hakenenden 9 des Verrasthakens 8 eingeführt werden können, während sie bei Verschiebung in den oberen Bereich 7b hinter der Platte 6 gefangen sind. Auf dem Verrasthaken 8 ist starr eine Anschlagplatte 10 befestigt, an der sich ein im gezeigten Ausführungsbeispiel aus zwei Abschnitten 11a und 11b bestehender Dämpfungspuffer 11 abstützt, der beim Einstecken des Verrasthakens in die Öffnungen 7 der Platte 6 zusammengedrückt werden muss, sodass die Haken mit Federkraft an der mit einer Dämpfungsschicht 12 belegten Rückseite der Metallplatte 6 anliegen.The beating hand-held power tool shown in the figures has a tool housing 1 with a separately attachable, preferably bolt on, bottom part 1a and a simply attachable vibration-damped Handle 2 on. This vibration damped handle 2 is with a Bearing 3 provided, surrounded by damping rings 4 in bearing shell sections 5a and 5b can be stored on the tool housing 1 or its bottom part 1a are formed. At the upper leg 2b of the handle 2 is a metal plate 6 with openings 7 for insertion of a tool housing 1 rigid attached Verrasthaken 8, wherein the openings 7 in the lower region 7a are wider than in the upper area 7b such that in the lower area the hook ends 9 of the Verrasthakens 8 can be introduced while moving are trapped in the upper area 7b behind the plate 6. On the Verrasthaken 8 is rigidly attached to a stop plate 10, at which a in the one shown Embodiment of two sections 11a and 11b existing Damping buffer 11 is supported, which when inserting the Verrasthakens in the openings 7 of the plate 6 must be compressed so that the hook with Spring force on the occupied with a damping layer 12 back of the metal plate 6 abut.

Durch die Ausbildung des Dämpfungspuffers 11 aus mehreren Abschnitten, die gegebenenfalls aus unterschiedlichem Material, also unterschiedlichem Gummi oder unterschiedlichem Zellschaumstoff, bestehen können, lässt sich die Dämpfungscharakteristik für den Handgriff 2 in weiterem Umfang einstellen. Bei 13 erkennt man einen Dichtungsbalg, der die Verbindungsstelle des oberen Schenkels 2b des Handgriffs mit dem Gehäuse 1 schützend übergreift.Due to the formation of the damping buffer 11 of several sections, the optionally made of different material, so different rubber or different cellular foam, can be the damping characteristic for the handle 2 set to a greater extent. At 13 detects a sealing bellows, the junction of the upper leg 2b of the handle with the housing 1 protective overlaps.

Bei der Montage wird zunächst der Handgriff 2 mit seinem oberen Schenkel 2b an den Verrasthaken 8 angesteckt, wobei zu diesem Zweck der Verrasthaken 8 mit seinen Hakenenden 9 in die unteren Abschnitte 7a der Öffnungen 7 der Metallplatte 6 eingesteckt wird. Anschließend wird der Handgriff nach unten gezogen, wodurch sich die Möglichkeit eines Einsprengens der Lagerachsen 3 mit den sie umgebenden Dämpfungsringen 4 in die Lagerschalen 5a des Gehäuses ergibt. Anschließend verschiebt sich der Handgriff 2 wieder nach oben, wodurch sich die Hakenenden in den oberen engeren Bereich 7b der Öffnungen 7 bewegen, wo sie hinter der Metallplatte 6 gefangen sind. Danach wird das Gehäusebodenteil 1a unten angesteckt und mit einer Schraube befestigt.During assembly, first the handle 2 with its upper leg 2b on the Verrasthaken 8 infected, for which purpose the Verrasthaken 8 with its hooked ends 9 in the lower portions 7a of the openings 7 of the metal plate 6 is inserted. Then the handle is pulled down, whereby the possibility of breaking the bearing shafts 3 with them surrounding damping rings 4 results in the bearing shells 5a of the housing. Subsequently, the handle 2 moves back up, causing the Hook ends move in the upper narrower portion 7b of the openings 7, where they are caught behind the metal plate 6. Thereafter, the housing bottom part 1a attached below and fastened with a screw.

Der Handgriff 2 ist aus zwei Schalenhälften zusammengesetzt, die durch Verschraubungen im Bereich der Lagerachse 3 sowie der an den Schalenhälften angeformten Hülsen 14 miteinander verbindbar sind. Dieser zweischalige Aufbau ergibt die Möglichkeit eines einfachen Einlegens der Metallplatte 6, die für die vibrationsgedämpfte Verbindung des Handgriffs 2 mit dem Werkzeuggehäuse 1 notwendig ist.The handle 2 is composed of two shell halves by screwing in the region of the bearing axis 3 and the molded on the shell halves Sleeves 14 are connected to each other. This bivalve construction gives the possibility of a simple insertion of the metal plate 6, for the vibration-damped Connection of the handle 2 with the tool housing 1 necessary is.

Claims (9)

Schlagendes handgeführtes Elektrowerkzeug, insbesondere pneumatischer Bohrhammer, mit vibrationsgedämpftem Handgriff, wobei die Schenkel eines im Wesentlichen C-förmigen Handgriffs unter Zwischenordnung von Federelementen am Werkzeuggehäuse befestigt sind, dadurch gekennzeichnet, dass der am einen, vorzugsweise dem unteren, Ende um eine Querachse drehbar am Werkzeug-Gehäuse (1) gelagerte Handgriff (2), am anderen Ende verrastend unter Zwischenordnung eines Dämpfungspuffers (11) aus Gummi oder Zellschaumstoff an das Werkzeug-Gehäuse (1) angesteckt ist.Beating hand-held power tool, in particular pneumatic hammer drill, with vibration-damped handle, wherein the legs of a substantially C-shaped handle are fixed with interposition of spring elements on the tool housing, characterized in that the one, preferably the lower end rotatable about a transverse axis on the tool Housing (1) mounted handle (2), latching at the other end with the interposition of a damping buffer (11) made of rubber or cellular foam to the tool housing (1) is infected. Elektrowerkzeug nach Anspruch 1, dadurch gekennzeichnet, dass die Lagerachse (3) mit Dämpfungsmaterial umhüllt ist.Power tool according to claim 1, characterized in that the bearing axis (3) is covered with damping material. Elektrowerkzeug nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die mit aufgesteckten Dämpfungsringen (4) versehene Lagerachse (3) des Handgriffs (2) in geteilten Lagerschalen (5a, 5b) des Gehäuses (1) und eines getrennt daran befestigbaren Gehäusebodenteils (1a) gelagert ist.Power tool according to claim 1 or 2, characterized in that the provided with plugged damping rings (4) bearing axis (3) of the handle (2) in divided bearing shells (5a, 5b) of the housing (1) and a separately fastened thereto housing bottom part (1a) is stored. Elektrowerkzeug nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass am Werkzeug-Gehäuse (1) oben ein, vorzugsweise als Platte ausgebildeter, starrer Verrasthaken (8) befestigt ist, der den Dämpfungspuffer (11) durchsetzt und dessen Hakenenden (9) in die Öffnungen (7) einer Metallplatte (6) am oberen Schenkel (2b) des Handgriffs (2) eingreifen, die oben schmäler als die unteren Einsteckbereiche ausgebildet sind, wobei die Bemessung so getroffen ist, dass in der Montagestellung die Haken (9) in der verengten oberen Position federnd an der Rückseite der Metallplatte (6) anliegen.Power tool according to one of claims 1 to 3, characterized in that the tool housing (1) above a, preferably designed as a plate, rigid Verrasthaken (8) is fixed, which passes through the damping buffer (11) and the hook ends (9) in the openings (7) of a metal plate (6) on the upper leg (2b) of the handle (2) engage, which are formed above narrower than the lower insertion areas, wherein the design is such that in the mounting position, the hooks (9) in the narrowed upper position resiliently against the back of the metal plate (6). Elektrowerkzeug nach Anspruch 4, dadurch gekennzeichnet, dass die Rückseite der Metallplatte (6) mit einer elastischen Dämpfungsschicht (12) belegt ist. Power tool according to claim 4, characterized in that the back of the metal plate (6) is covered with an elastic damping layer (12). Elektrowerkzeug nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Dämpfungspuffer (11) in Längsrichtung geteilt aus mehreren Abschnitten (11a; 11b) aus gleichen oder unterschiedlichen Dämpfungsmaterialien zusammengesetzt ist.Power tool according to one of claims 1 to 5, characterized in that the damping buffer (11) in the longitudinal direction of several parts (11a, 11b) is composed of the same or different damping materials. Elektrowerkzeug nach Anspruch 6, dadurch gekennzeichnet, dass der Dämpfungspuffer (11) zur Erzeugung einer Energie-vernichtenden Reibung mit enger Passung den Verrasthaken (8) umgreift.Power tool according to claim 6, characterized in that the damping buffer (11) engages around the latching hook (8) to produce an energy-damaging friction with a tight fit. Elektrowerkzeug nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Handgriff (2) aus zwei im Bereich unter der Metallplatte (6) sowie in der hohlen Lagerachse (3) miteinander verschraubten Halbschalen zusammengesetzt ist.Power tool according to one of claims 1 to 7, characterized in that the handle (2) consists of two in the area below the metal plate (6) and in the hollow bearing axis (3) screwed together half-shells. Elektrowerkzeug nach einem der Ansprüche 1 bis 8, gekennzeichnet durch einen die gedämpfte Verbindung des Gehäuses (1) und des oberen Handgriffschenkels (2b) überbrückenden Dichtungsbalg (13).Power tool according to one of Claims 1 to 8, characterized by a sealing bellows (13) bridging the damped connection of the housing (1) and the upper handle leg (2b).
EP04024899A 2003-11-24 2004-10-20 Vibration damped handle Expired - Lifetime EP1533084B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10355103A DE10355103B4 (en) 2003-11-24 2003-11-24 Vibration-damped handle for a hand-held power tool
DE10355103 2003-11-24

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EP1533084A1 true EP1533084A1 (en) 2005-05-25
EP1533084B1 EP1533084B1 (en) 2007-09-19

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EP (1) EP1533084B1 (en)
KR (1) KR101159223B1 (en)
AT (1) ATE373546T1 (en)
AU (1) AU2004231220B2 (en)
DE (2) DE10355103B4 (en)
ES (1) ES2293144T3 (en)
NZ (1) NZ536712A (en)

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WO2009074443A1 (en) * 2007-12-13 2009-06-18 Robert Bosch Gmbh Hand-held power tool having a two-part housing
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EP2243601A1 (en) * 2009-04-23 2010-10-27 HILTI Aktiengesellschaft Suspension mounting of a handle in a handheld power tool
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CN115279074A (en) * 2022-06-24 2022-11-01 中国电子科技集团公司第十研究所 Damping type folding handle for equipment and mounting method
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GB2419564B (en) * 2004-10-22 2007-09-05 Bosch Gmbh Robert Hand tool machine with vibration-damped pistol grip
GB2419564A (en) * 2004-10-22 2006-05-03 Bosch Gmbh Robert Hand held power tool with vibration-damped pistol grip
US8069930B2 (en) 2004-10-22 2011-12-06 Robert Bosch Gmbh Hand power tool with vibration-damped pistol grip
GB2423276A (en) * 2005-02-17 2006-08-23 Stihl Maschf Andreas A hand-guided power tool
GB2423276B (en) * 2005-02-17 2007-03-21 Stihl Ag & Co Kg Andreas Power tool
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US7673703B2 (en) 2005-08-11 2010-03-09 Hilti Aktiengesellschaft Hand-held power tool having main and handle housings with a connection device for connecting the housings
EP1752260A1 (en) * 2005-08-11 2007-02-14 HILTI Aktiengesellschaft Hand tool with a connection between the main housing and the handgrip housing
WO2007101736A1 (en) * 2006-03-09 2007-09-13 Robert Bosch Gmbh Machine tool and method for the operation thereof
WO2008000543A1 (en) * 2006-06-28 2008-01-03 Robert Bosch Gmbh Portable power tool
US8091651B2 (en) 2006-06-28 2012-01-10 Robert Bosch Gmbh Hand-held power tool
WO2008034668A1 (en) * 2006-09-21 2008-03-27 Robert Bosch Gmbh Electric machine tool with vibration-decoupled gripping element
RU2466855C2 (en) * 2006-09-21 2012-11-20 Роберт Бош Гмбх Electrical hand-held machine with vibration-isolating handle
WO2009003739A1 (en) 2007-07-02 2009-01-08 Robert Bosch Gmbh Elastic connection between housing parts of power-driven machine tools
US8833486B2 (en) 2007-07-02 2014-09-16 Robert Bosch Gmbh Elastic connection between housing parts of motor-driven power tools
WO2009074443A1 (en) * 2007-12-13 2009-06-18 Robert Bosch Gmbh Hand-held power tool having a two-part housing
EP2119537A1 (en) * 2008-05-17 2009-11-18 Metabowerke GmbH Electric hand tool
EP2243601A1 (en) * 2009-04-23 2010-10-27 HILTI Aktiengesellschaft Suspension mounting of a handle in a handheld power tool
US9168652B2 (en) 2009-05-11 2015-10-27 Robert Bosch Gmbh Hand-held power tool, in particular electric hand-held power tool
WO2010130519A1 (en) 2009-05-11 2010-11-18 Robert Bosch Gmbh Hand-held power tool, in particular electric hand-held power tool
CN102421569A (en) * 2009-05-11 2012-04-18 罗伯特·博世有限公司 Hand-held power tool, in particular electric hand-held power tool
CN102421569B (en) * 2009-05-11 2015-04-01 罗伯特·博世有限公司 Hand-held power tool, in particular electric hand-held power tool
US9993915B2 (en) 2014-01-23 2018-06-12 Black & Decker Inc. Rear handle
US10040184B2 (en) 2014-01-23 2018-08-07 Black & Decker Inc. Rear handle
US10046451B2 (en) 2014-01-23 2018-08-14 Black & Decker Inc. Rear handle
US10137562B2 (en) 2014-01-23 2018-11-27 Black & Decker Inc. Rear handle
CN104153554B (en) * 2014-08-25 2016-05-25 重庆广建装饰股份有限公司 Electronic sheet material leveling hammer
CN104153554A (en) * 2014-08-25 2014-11-19 重庆广建装饰股份有限公司 Electric plate leveling hammer
CN115279074A (en) * 2022-06-24 2022-11-01 中国电子科技集团公司第十研究所 Damping type folding handle for equipment and mounting method
EP4400263A1 (en) * 2023-01-11 2024-07-17 Hilti Aktiengesellschaft Electric hand tool
WO2024149531A1 (en) * 2023-01-11 2024-07-18 Hilti Aktiengesellschaft Electric hand tool

Also Published As

Publication number Publication date
KR101159223B1 (en) 2012-06-25
NZ536712A (en) 2006-04-28
DE10355103B4 (en) 2010-03-18
DE502004005008D1 (en) 2007-10-31
ATE373546T1 (en) 2007-10-15
KR20050050033A (en) 2005-05-27
EP1533084B1 (en) 2007-09-19
DE10355103A1 (en) 2005-06-23
ES2293144T3 (en) 2008-03-16
AU2004231220A1 (en) 2005-06-09
AU2004231220B2 (en) 2007-06-07

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