EP1493537A1 - Electric Handtool with Vibration decoupled percussion mechanism - Google Patents

Electric Handtool with Vibration decoupled percussion mechanism Download PDF

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Publication number
EP1493537A1
EP1493537A1 EP03104222A EP03104222A EP1493537A1 EP 1493537 A1 EP1493537 A1 EP 1493537A1 EP 03104222 A EP03104222 A EP 03104222A EP 03104222 A EP03104222 A EP 03104222A EP 1493537 A1 EP1493537 A1 EP 1493537A1
Authority
EP
European Patent Office
Prior art keywords
hand tool
electric hand
line bridge
tool according
bridge
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
EP03104222A
Other languages
German (de)
French (fr)
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EP1493537B1 (en
Inventor
Ferdinand Kristen
Erwin Manschitz
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.)
Hilti AG
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Hilti AG
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Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP1493537A1 publication Critical patent/EP1493537A1/en
Application granted granted Critical
Publication of EP1493537B1 publication Critical patent/EP1493537B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B25D17/24—Damping the reaction force
    • 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
    • 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
    • B25D2222/00—Materials of the tool or the workpiece
    • B25D2222/54—Plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2222/00—Materials of the tool or the workpiece
    • B25D2222/54—Plastics
    • B25D2222/61—Polyamides, e.g. Nylon
    • 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
    • B25D2250/041—Cable management or routing of electrical cables and wires
    • 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
    • B25D2250/091—Electrically-powered tool components
    • B25D2250/095—Electric motors

Definitions

  • the invention refers to an at least partially striking electric hand tool with a manageable housing and a vibration-decoupled Schlagtechniksbauou, in particular a chisel hammer.
  • an electric handheld power tool has a housing Vibration-decoupled percussion unit, wherein the firmly connected to the housing Electric motor a limited along the axis of impact movable engagement in the Schlagtechniksbaury has.
  • the electric motor is over in an electric hand tool long, freely suspended cables connected to the housing.
  • Such a long, free hanging Cables have a very low bending stiffness due to their punctiform cross section and thus a low natural resonance with respect to flexural vibration modes, which can experience a resonant excitation in vibration, the material fatigue leads to failure.
  • the object of the invention is to realize a vibration-decoupled Strike assembly with a low-fatigue power supply.
  • an at least partially striking electric hand tool machine with a manageable housing and a vibration-decoupled percussion unit several electrical lines for electrical connection to the housing relatively limited movable percussion assembly, with the lines in a transverse arranged to the impact axis, bending flexible cable bridge are fixed vibration resistant.
  • the line bridge a plurality of longitudinally spaced guide means for individually positive guidance of the line and to this definable, further advantageous clip-in, Fixing means, whereby the lines are fixable at discrete locations.
  • the line bridge is oriented with respect to exactly one transverse to the impact axis Bending axis defined flexurally flexible and executed in the other bending stiff, further advantageous as a flat band, whereby transverse oscillations are suppressed.
  • the line bridge made of plastic, further advantageous from unreinforced Polyamide, which on the viscoelastic behavior a high and fatigue-free Vibration damping takes place.
  • the end of the line bridge is a longitudinally displaceable connector arranged, whereby in the vibration-resistant mounting an intrinsic stress-free Determination can be made with respect to the line bridge.
  • a reibkraftschlüssige determination of the connector to the line bridge via an intermediate rib, causing the connector via a mounting screw both fixable and displaceable can be fixed.
  • the line bridge cantilevered firmly on the electronics module connected, further advantageously glued to this over a potting compound, whereby the Line bridge is a pre-assembled part of the electronics module.
  • the lines 5 are arranged with a transversely to the impact axis A arranged line bridge. 7 fixed against vibration, which cantilevered on one side firmly with an electronic assembly 12 is connected by being glued to this over a potting compound 13.
  • One end the line bridge 7 arranged, vibration-mounted connector 10 connects the electronics assembly 12 electrically connected to the electric motor. 6
  • the lines 5 are arranged in a direction transverse to the axis A, with respect exactly a bending axis B oriented transverse to the axis of impact A defines bending-flexible Conductor bridge 7 fixed against vibration.
  • the bending flexibility is by a suitable Thickness of the line bridge 7 selected such that the first bending natural vibration as Ribbon made of polyamide conductor bridge 7 with respect to the bending axis B higher than 200 Hz.
  • the conductor bridge 7 has a plurality of longitudinally spaced guide means 8 for individually positive guidance of the lines 5 and a clip-fixing means 9 laying down on. End of the line bridge 7 is along this in the area X.
  • displaceable connector 10 is arranged, which via two intermediate ribs 11 frictionally engaged with the line bridge 7 is determined by the screws 14th vibration-proof to the electric motor 6 mounted connector 10 a compression bias builds on the ribs 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Portable Power Tools In General (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Harvester Elements (AREA)

Abstract

The axially oscillating section (4) of the tool is driven by an electric motor (6) connected through a plug (10) and cables (5) to the electronic control unit (12) with a mass filling (13). A nylon plate (7) carries the cable across the machine axis A and is restricted from oscillating.

Description

Die Erfindung bezeichnet eine zumindest teilweise schlagende Elektrohandwerkzeugmaschine mit einem handhabbaren Gehäuse und einer dazu schwingungsentkoppelten Schlagwerksbaugruppe, insbesondere einen Meisselhammer.The invention refers to an at least partially striking electric hand tool with a manageable housing and a vibration-decoupled Schlagwerksbaugruppe, in particular a chisel hammer.

Bei schlagenden Elektrohandwerkzeugmaschinen verursachen die üblicherweise von einem Elektromotor angetriebenen pneumatischen Schlagwerke sowie die Wechselwirkung des Werkstücks mit dem Schlagwerkzeug masseträgheitsbedingte, über das Gehäuse auf den Nutzer übertragbare, Vibrationen im Frequenzbereich von 1 Hz bis 100 Hz, welche möglichst vollständig zu unterdrücken sind. Derartige über eine Feder zum Gehäuse vibrationsentkoppelten Schlagwerksbaugruppen sind zur Erzeugung einer unterschiedlichen Vorspannung längs der Schlagachse ca. 10 mm begrenzt versetzbar und schwingen um diese Mittellage mit einer Amplitude von wenigen mm.In beating electric hand tool machines usually cause of a Electric motor driven pneumatic impactors as well as the interaction of the Workpiece with the impact tool inertia-related, over the housing on the Users transferable, vibrations in the frequency range from 1 Hz to 100 Hz, which possible completely suppress it. Such vibration-decoupled via a spring to the housing Striking assemblies are used to produce a different bias voltage 10 mm limited along the stroke axis and swing around this central position with an amplitude of a few mm.

Nach der GB2154497 weist eine Elektrohandwerkzeugmaschine eine vom Gehäuse vibrationsentkoppelte Schlagwerksbaugruppe auf, wobei der fest mit dem Gehäuse verbundene Elektromotor einen längs der Schlagachse begrenzt beweglichen Eingriff in die Schlagwerksbaugruppe aufweist.According to GB2154497, an electric handheld power tool has a housing Vibration-decoupled percussion unit, wherein the firmly connected to the housing Electric motor a limited along the axis of impact movable engagement in the Schlagwerksbaugruppe has.

Nach der DE10008671 ist bei einer Elektrohandwerkzeugmaschine der Elektromotor über lange, frei hängende Leitungen mit dem Gehäuse verbunden. Derartige lange, frei hängende Leitungen weisen auf Grund ihres punktförmigen Querschnitts eine sehr geringe Biegesteifigkeit und somit eine niedrige Eigenresonanz bezüglich Biegeschwingungsmoden auf, welche bei Vibrationen eine resonante Anregung erfahren können, die über Materialermüdung zum Versagen führt.According to DE10008671, the electric motor is over in an electric hand tool long, freely suspended cables connected to the housing. Such a long, free hanging Cables have a very low bending stiffness due to their punctiform cross section and thus a low natural resonance with respect to flexural vibration modes, which can experience a resonant excitation in vibration, the material fatigue leads to failure.

Zudem weist nach der EP0276313 ein flachbandförmiger Kabelbaum zwischen relativ zueinander begrenzt beweglichen Teilen eines Roboters eine bewegliche flache steife Stützstruktur auf, an welcher die Kabel fixiert sind. Nach der US5054944 weist ein beweglicher Druckkopf einen in genau einer Dimension biegeflexiblen, flachbandförmigen Kabelbaum in Form einer flexiblen Leiterplatte aus Kunststoff auf, welcher sich längs der Bewegung erstreckt. In addition, according to EP0276313 a flat-band-shaped wire harness between relative mutually limited moving parts of a robot a movable flat rigid Support structure on which the cables are fixed. After the US5054944 has a movable Print head in one dimension flexible bend, ribbon-shaped cable harness in the form of a flexible plastic circuit board extending along the movement extends.

Die Aufgabe der Erfindung besteht in der Realisierung einer schwingungsentkoppelten Schlagwerksbaugruppe mit einer ermüdungsarmen Stromversorgung.The object of the invention is to realize a vibration-decoupled Strike assembly with a low-fatigue power supply.

Die Aufgabe wird im Wesentlichen durch die Merkmale der unabhängigen Ansprüche gelöst. Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen.The object is essentially achieved by the features of the independent claims. Advantageous developments emerge from the subclaims.

Im Wesentlichen weist eine zumindest teilweise schlagende Elektrohandwerkzeugmaschine mit einem handhabbaren Gehäuse und einer dazu schwingungsentkoppelten Schlagwerksbaugruppe mehrere elektrische Leitungen zur elektrischen Verbindung der zum Gehäuse relativ begrenzt beweglichen Schlagwerksbaugruppe auf, wobei die Leitungen in einer quer zur Schlagachse angeordneten, biegeflexiblen Leitungsbrücke schwingungsfest fixiert sind.Essentially, an at least partially striking electric hand tool machine with a manageable housing and a vibration-decoupled percussion unit several electrical lines for electrical connection to the housing relatively limited movable percussion assembly, with the lines in a transverse arranged to the impact axis, bending flexible cable bridge are fixed vibration resistant.

Durch die schwingungsfest in der quer zur Schlagachse angeordneten, biegeflexiblen Leitungsbrücke fixierten einzelnen Leitungen bilden diese mit der Leitungsbrücke eine in sich schwingungsfreie Baugruppe aus, welche als solche biegesteifer als eine einzelne Leitung ist und somit wesentlich höhere Biegeeigenschwingungsmodi aufweist, die im Frequenzbereich hinreichend weit vom Erregungsspektrum beabstandet sind, um resonante Anregungen zu vermeiden.Due to the vibration-resistant arranged in the transversely to the axis of impact, flexible Line bridge fixed individual lines form this with the line bridge in itself vibration-free assembly, which as such is more rigid than a single line and thus has much higher bending natural vibration modes in the frequency domain are sufficiently far from the excitation spectrum to resonant excitations avoid.

Vorteilhaft weist die Leitungsbrücke mehrere längs beabstandete Führungsmittel zur einzeln formschlüssigen Führung der Leitung sowie an diesen festlegbare, weiter vorteilhaft einclipsbare, Fixierungsmittel auf, wodurch die Leitungen an diskreten Stellen fixierbar sind.Advantageously, the line bridge a plurality of longitudinally spaced guide means for individually positive guidance of the line and to this definable, further advantageous clip-in, Fixing means, whereby the lines are fixable at discrete locations.

Vorteilhaft ist die Leitungsbrücke bezüglich genau einer quer zur Schlagachse orientierten Biegeachse definiert biegeflexibel und in den anderen biegesteif ausgeführt, weiter vorteilhaft als Flachband, wodurch Querschwingen unterdrückt werden.Advantageously, the line bridge is oriented with respect to exactly one transverse to the impact axis Bending axis defined flexurally flexible and executed in the other bending stiff, further advantageous as a flat band, whereby transverse oscillations are suppressed.

Vorteilhaft besteht die Leitungsbrücke aus Kunststoff, weiter vorteilhaft aus unverstärktem Polyamid, wodurch über das viskoelastische Verhalten eine hohe sowie ermüdungsfreie Schwingungsdämpfung erfolgt.Advantageously, the line bridge made of plastic, further advantageous from unreinforced Polyamide, which on the viscoelastic behavior a high and fatigue-free Vibration damping takes place.

Vorteilhaft ist endseitig der Leitungsbrücke ein längs dieser versetzbarer Steckverbinder angeordnet, wodurch bei der schwingungsfesten Montage eine eigenspannungsfreie Festlegung bezüglich der Leitungsbrücke erfolgen kann.Advantageously, the end of the line bridge is a longitudinally displaceable connector arranged, whereby in the vibration-resistant mounting an intrinsic stress-free Determination can be made with respect to the line bridge.

Vorteilhaft erfolgt eine reibkraftschlüssige Festlegung des Steckverbinders zur Leitungsbrücke über eine zwischenliegende Rippe, wodurch der Steckverbinder über eine Montageschraube sowohl fixierbar als auch versetzbar festlegbar ist. Advantageously, a reibkraftschlüssige determination of the connector to the line bridge via an intermediate rib, causing the connector via a mounting screw both fixable and displaceable can be fixed.

Vorteilhaft ist die Leitungsbrücke einseitig auskragend fest mit der Elektronikbaugruppe verbunden, weiter vorteilhaft mit dieser über eine Vergussmasse verklebt, wodurch die Leitungsbrücke ein vormontierbares Teil der Elektronikbaugruppe ist.Advantageously, the line bridge cantilevered firmly on the electronics module connected, further advantageously glued to this over a potting compound, whereby the Line bridge is a pre-assembled part of the electronics module.

Die Erfindung wird bezüglich eines vorteilhaften Ausführungsbeispiels näher erläutert mit:

  • Fig. 1 als Elektrohandwerkzeugmaschine, teilweise im Längsschnitt dargestellt,
  • Fig. 2 als Leitungsbrücke, gesehen im Schnitt in der Ebene II-II der Fig. 1.
    • The invention will be explained in more detail with respect to an advantageous embodiment with:
  • 1 as electric hand tool machine, partially shown in longitudinal section,
  • 2 as a line bridge, seen in section in the plane II-II of FIG. 1st

    • Nach Fig. 1 weist eine drehende und schlagende Elektrohandwerkzeugmaschine 1 mit einem über einen Handgriff 2 handhabbaren Gehäuse 3 und einer dazu schwingungsentkoppelten, längs der Schlagachse A relativ begrenzt beweglichen, Schlagwerksbaugruppe 4 mehrere flexible, elektrische Leitungen 5 auf, welche das Gehäuse 3 und die Schlagwerksbaugruppe 4, welche einen Elektromotor 6 beinhaltend, stromleitend miteinander verbinden. Die Leitungen 5 sind mit einer quer zur Schlagachse A angeordneten Leitungsbrücke 7 schwingungsfest fixiert, welche einseitig auskragend fest mit einer Elektronikbaugruppe 12 verbunden ist, indem sie mit dieser über eine Vergussmasse 13 verklebt ist. Ein endseitig der Leitungsbrücke 7 angeordneter, schwingungsfest montierter Steckverbinder 10 verbindet die Elektronikbaugruppe 12 elektrisch mit dem Elektromotor 6.According to Fig. 1, a rotating and beating electric hand tool 1 with a manageable via a handle 2 housing 3 and a vibration-decoupled, along the striking axis A relatively limited movable, striking mechanism assembly. 4 a plurality of flexible electrical lines 5, which the housing 3 and the percussion unit 4, which includes an electric motor 6, conductively connect together. The lines 5 are arranged with a transversely to the impact axis A arranged line bridge. 7 fixed against vibration, which cantilevered on one side firmly with an electronic assembly 12 is connected by being glued to this over a potting compound 13. One end the line bridge 7 arranged, vibration-mounted connector 10 connects the electronics assembly 12 electrically connected to the electric motor. 6

    Nach Fig. 2 sind die Leitungen 5 in einer quer zur Schlagachse A angeordneten, bezüglich genau einer quer zur Schlagachse A orientierten Biegeachse B definiert biegeflexiblen Leitungsbrücke 7 schwingungsfest fixiert. Dabei ist die Biegeflexibilität durch eine geeignete Dicke der Leitungsbrücke 7 derart gewählt, dass die erste Biegeeigenschwingung der als Flachband aus Polyamid ausgebildeten Leitungsbrücke 7 bezüglich der Biegeachse B höher als 200 Hz liegt. Die Leitungsbrücke 7 weist mehrere längs beabstandete Führungsmittel 8 zur einzeln formschlüssigen Führung der Leitungen 5 sowie einclipsbare Fixierungsmittel 9 zur Festlegung auf. Endseitig der Leitungsbrücke 7 ist der längs dieser im Bereich X versetzbarer Steckverbinder 10 angeordnet, welcher über zwei zwischenliegende Rippen 11 reibkraftschlüssig zur Leitungsbrücke 7 festgelegt ist, indem der mittels Schrauben 14 schwingungsfest am Elektromotor 6 montierte Steckverbinder 10 eine Druckvorspannung über die Rippen 11 aufbaut.According to Fig. 2, the lines 5 are arranged in a direction transverse to the axis A, with respect exactly a bending axis B oriented transverse to the axis of impact A defines bending-flexible Conductor bridge 7 fixed against vibration. The bending flexibility is by a suitable Thickness of the line bridge 7 selected such that the first bending natural vibration as Ribbon made of polyamide conductor bridge 7 with respect to the bending axis B higher than 200 Hz. The conductor bridge 7 has a plurality of longitudinally spaced guide means 8 for individually positive guidance of the lines 5 and a clip-fixing means 9 laying down on. End of the line bridge 7 is along this in the area X. displaceable connector 10 is arranged, which via two intermediate ribs 11 frictionally engaged with the line bridge 7 is determined by the screws 14th vibration-proof to the electric motor 6 mounted connector 10 a compression bias builds on the ribs 11.

    Claims (7)

    Zumindest teilweise schlagende Elektrohandwerkzeugmaschine mit einem handhabbaren Gehäuse (3), einer dazu schwingungsentkoppelten Schlagwerksbaugruppe (4) und mit mehreren elektrischen Leitungen (5) zur elektrischen Verbindung der zum Gehäuse (3) relativ begrenzt beweglichen Schlagwerksbaugruppe (4), dadurch gekennzeichnet, dass die Leitungen (5) in einer quer zur Schlagachse (A) angeordneten, biegeflexiblen Leitungsbrücke (7) schwingungsfest fixiert sind.At least partially hitting electric hand tool with a manageable housing (3), a vibration-decoupled impact mechanism (4) and with several electrical lines (5) for electrical connection to the housing (3) relatively limited movable striking mechanism assembly (4), characterized in that the lines (5) are fixed against vibration in a transversely to the impact axis (A) arranged bend flexible conductor bridge (7). Elektrohandwerkzeugmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die Leitungsbrücke (7) mehrere längs beabstandete Führungsmittel (8) zur einzeln formschlüssigen Führung der Leitung (5) sowie an diesen festlegbare, optional einclipsbare, Fixierungsmittel (9) aufweist.Electric hand tool according to claim 1, characterized in that the line bridge (7) has a plurality of longitudinally spaced guide means (8) for individually positive guidance of the line (5) and fixable thereto, optionally einclipsbare, fixing means (9). Elektrohandwerkzeugmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Leitungsbrücke (7) bezüglich genau einer, quer zur Schlagachse (A) orientierten, Biegeachse (B) definiert biegeflexibel ausgeführt ist.Electric hand tool according to claim 1 or 2, characterized in that the line bridge (7) with respect to exactly one, transversely to the impact axis (A) oriented, bending axis (B) defined bending flexible executed. Elektrohandwerkzeugmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Leitungsbrücke (7) aus Kunststoff besteht.Electric hand tool according to one of claims 1 to 3, characterized in that the line bridge (7) consists of plastic. Elektrohandwerkzeugmaschine nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass endseitig der Leitungsbrücke (7) ein längs dieser versetzbarer Steckverbinder (10) angeordnet ist.Electric hand tool according to one of the preceding claims, characterized in that the end of the line bridge (7) is arranged along this displaceable connector (10). Elektrohandwerkzeugmaschine nach Anspruch 5, dadurch gekennzeichnet, dass zwischen der Leitungsbrücke (7) und dem Steckverbinder (10) eine druckverspannbare Rippe (11) zur reibkraftschlüssigen Festlegung des Steckverbinders (10) an der Leitungsbrücke (7) angeordnet ist.Electric hand tool according to claim 5, characterized in that between the line bridge (7) and the connector (10) a druckverspannbare rib (11) for reibkraftschlüssigen fixing of the connector (10) on the line bridge (7) is arranged. Elektrohandwerkzeugmaschine nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Leitungsbrücke (7) einseitig auskragend fest mit einer Elektronikbaugruppe (12) verbunden ist und optional mit dieser über eine Vergussmasse (13) verklebt ist.Electric hand tool according to one of the preceding claims, characterized in that the line bridge (7) on one side cantilevered fixed to an electronic assembly (12) is connected and optionally glued to this via a potting compound (13).
    EP03104222A 2002-11-23 2003-11-17 Electric Handtool with Vibration decoupled percussion mechanism Expired - Lifetime EP1493537B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE10254813A DE10254813A1 (en) 2002-11-23 2002-11-23 Electric hand machine tool with vibration-decoupled hammer mechanism assembly
    DE10254813 2002-11-23

    Publications (2)

    Publication Number Publication Date
    EP1493537A1 true EP1493537A1 (en) 2005-01-05
    EP1493537B1 EP1493537B1 (en) 2007-01-03

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    ID=32240357

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP03104222A Expired - Lifetime EP1493537B1 (en) 2002-11-23 2003-11-17 Electric Handtool with Vibration decoupled percussion mechanism

    Country Status (8)

    Country Link
    US (1) US6948570B2 (en)
    EP (1) EP1493537B1 (en)
    JP (1) JP4542767B2 (en)
    CN (1) CN100335238C (en)
    AT (1) ATE350200T1 (en)
    DE (2) DE10254813A1 (en)
    ES (1) ES2278118T3 (en)
    PL (1) PL205189B1 (en)

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    ATE350200T1 (en) 2007-01-15
    JP4542767B2 (en) 2010-09-15
    CN1502450A (en) 2004-06-09
    EP1493537B1 (en) 2007-01-03
    PL205189B1 (en) 2010-03-31
    JP2004174710A (en) 2004-06-24
    PL363560A1 (en) 2004-05-31
    CN100335238C (en) 2007-09-05
    DE10254813A1 (en) 2004-06-03
    US6948570B2 (en) 2005-09-27
    ES2278118T3 (en) 2007-08-01
    US20040108124A1 (en) 2004-06-10

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