EP1404493A1 - Hand tool machine comprising a vibration-dampened handle - Google Patents

Hand tool machine comprising a vibration-dampened handle

Info

Publication number
EP1404493A1
EP1404493A1 EP02714050A EP02714050A EP1404493A1 EP 1404493 A1 EP1404493 A1 EP 1404493A1 EP 02714050 A EP02714050 A EP 02714050A EP 02714050 A EP02714050 A EP 02714050A EP 1404493 A1 EP1404493 A1 EP 1404493A1
Authority
EP
European Patent Office
Prior art keywords
handle
machine housing
hand tool
tool according
levers
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
EP02714050A
Other languages
German (de)
French (fr)
Other versions
EP1404493B1 (en
Inventor
Gerhard Meixner
Pierre Jeannin
Patrick Maillard
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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
Priority claimed from DE2001118037 external-priority patent/DE10118037A1/en
Priority claimed from DE2001138123 external-priority patent/DE10138123A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1404493A1 publication Critical patent/EP1404493A1/en
Application granted granted Critical
Publication of EP1404493B1 publication Critical patent/EP1404493B1/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
    • 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
    • B25F5/006—Vibration damping means
    • 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
    • B25D2250/371—Use of springs
    • B25D2250/381—Leaf springs

Definitions

  • the present invention relates to a handheld power tool with a vibration-damped handle, which is coupled to the machine housing using damping means.
  • the invention is based on the object of specifying a hand tool with a handle of the type mentioned, which is coupled as far as possible with vibration damping to the machine housing of the hand tool.
  • the handle is coupled to the machine housing via two or more parallel levers aligned almost perpendicular to the longitudinal axis of the hand tool, the levers being articulated on the one hand on the machine housing and on the other hand on the handle.
  • the handle With such a so-called parallel rocker arm, the handle is very stable and, because it no longer has any direct connection points to the machine housing, is very decoupled from vibrations of the machine housing.
  • the levers can either all be accommodated in the machine housing, or one or more levers can also be placed in a leg of the handle that is approximately perpendicular to the longitudinal axis of the handheld power tool.
  • the parallel oscillator can thus be integrated into the handheld power tool to save space.
  • vibration damping for the handle can be increased further by the fact that spring elements - preferably compression springs - are inserted at one or more points between the handle and the machine housing.
  • spring elements - preferably compression springs - are inserted at one or more points between the handle and the machine housing.
  • a further improvement in vibration damping can be achieved in that instead of purely passive spring elements, one or more active damping elements are arranged between the handle and the machine housing, which are controllable in such a way that they counteract vibrations of the machine housing.
  • the levers are particularly vibration-damping if they are designed as leaf springs. These are advantageously Leaf springs biased against a force exerted on the handle towards the machine housing.
  • Figure 1 is a schematic representation of a means of
  • FIG. 2 shows a practical implementation of the one
  • Machine housing mounted by means of a parallel transducer
  • Figure 3 is a hand tool, in which the
  • Pedal oscillator consists of leaf springs
  • Figure 4 shows a hand tool with a
  • Figure 5 shows a hand tool with a parallel oscillator consisting of preloaded leaf springs.
  • the hand machine tool consists of a machine housing 1, in which the machine drive is located, and a handle 2 coupled to the machine housing 1.
  • the handle 2 is coupled to the machine housing 1 via a parallel rocker arm.
  • This parallel rocker arm consists of two levers 4 and 5 lying parallel to each other and almost perpendicular to the longitudinal axis 3 of the machine. Instead of the two levers] .4 and 5 shown in the drawing, more than just two parallel levers can also be used.
  • the levers 4 and 5 are articulated on the one hand on the handle 2 and on the other hand on the machine housing 1 so that the handle 2 can execute a relative movement with respect to the machine housing 1 almost exclusively in the direction of the longitudinal axis 3.
  • the articulation points 6, 7 for the two levers 4, 5 of the handle 2 are arranged at the upper end, preferably a leg 10 running parallel to the longitudinal axis 3.
  • the two other articulation points 8 and 9 of the levers 4 and 5 are located on a support 11 provided at the lower end of the machine housing 1.
  • the articulation points 6, 7, 8, 9 of the individual levers 4, 5 are arranged in such a way that each lever 4 , 5 the two articulation points 6,
  • FIG. 2 shows an exemplary embodiment of the same coupling of a handle 2 to a machine housing that is more geared towards practical implementation 1 of a handheld power tool. All parts already described in connection with FIG. 1 and performing the same function are provided in FIG. 2 with the same reference numerals as in FIG. 1.
  • a stop 13 is arranged on the machine housing 1 and a stop 14 on the handle 2 for the compression spring 12 used as the damping agent between the handle 2 and the machine housing 1.
  • the parallel oscillator can be accommodated in a very space-saving manner in that at least one of the levers 4, 5 is accommodated in the leg of the handle 2 running perpendicular to the longitudinal axis 13 of the handheld power tool.
  • the carrier 11 arranged on the machine housing 1 for the articulation point 9 of the lever 5 extends up to the leg of the arm which extends perpendicular to the longitudinal axis 3 Handle 2 before.
  • the lower end of this leg of the handle 2 running perpendicular to the longitudinal axis 3 can be provided with a socket 15 surrounding the support 11.
  • This connector 15 merely forms a termination between the carrier 11 and the handle 2, but it does not have the function of a mechanical guide for the handle 2.
  • levers 4, 5 of the parallel oscillator The farther apart the levers 4, 5 of the parallel oscillator are, the greater the stability of the handle.
  • the exemplary embodiment in FIG. 2, in which one lever 4 is arranged in the machine housing 1 and the other lever 5 is located relatively far from the lever 4 in the handle 2 leads to a high stability of the handle 2. Also the width (in the direction perpendicular to Level of the drawing) of levers 4, 5 increases stability.
  • levers 4, 5 of the parallel oscillator can also be integrated in the machine housing 1.
  • the parallel oscillator described consisting of the levers 4, 5, can be arranged on only one side of the handle 2, as shown in FIGS. 1 and 2; but it can also be provided on both sides - in the direction transverse to the longitudinal object 3 of the machine - of the handle 2 parallel oscillators.
  • the relative movements of the handle 2 relative to the machine housing 1 are limited by an upper stop 16 and a lower stop 17.
  • the two stops 16 and 17 are formed on the horizontally extending leg 10 of the handle 2. These two stops 16 and 17 can, for example, be inner walls of a recess in the horizontally extending leg 10 of the handle 2. In these Recess 18 projects into arm 19, which is firmly connected to machine housing 1. The movement of the handle 2 away from the machine housing 1 is limited in that the arm 19 abuts the lower stop 17. The movement of the handle 2 towards the machine housing 1 is limited by the arm 19 striking the upper stop 16. The distance between the two stops 16 and 17 thus specifies the freedom of movement for the handle 2.
  • the two stops 16 and 17 can also be arranged on the machine housing 1 and the arm 19 on the handle 2. It is also possible to provide only an upper or lower stop on the machine housing 1 or on the handle 2.
  • the levers 4 and 5 forming the parallel oscillator are rigid.
  • the exemplary embodiments shown in FIGS. 3 to 5 are levers 20 and 21 designed as leaf springs.
  • the two leaf springs 20 and 21 are on the one hand in the horizontally extending leg 10 of the handle 2 and on the other hand on the housing 1, for example on the carrier 11, anchored.
  • the broad sides of the leaf springs 20 and 21 are aligned transversely to the direction of movement of the handle 2, so that they can be bent in the direction of the longitudinal axis 3 of the hand-held power tool and are rigid in the direction transverse thereto. Due to the resilient action of the levers 20, 21 of the parallel oscillator, vibrations emanating from the machine housing 1 in the direction of the handle 2 can be absorbed to a high degree.
  • the spring elements 12 inserted between the housing 1 and the handle 2 may be dispensed with, as shown in FIG. 3.
  • a spring element can additionally be used to absorb vibrations between the machine housing 1 and the handle 2, or, as shown in FIG. 4, can be replaced by an active damping element 22 which, for. B. is electrically controllable so that it counteracts vibrations of the machine housing 1.
  • Active damping elements that are used in handheld power tools for vibration dampening of the handle are e.g. B. from WO 98/21014 or EP 0 206 981 A2.
  • such active damping elements consist of a moving coil 24 mounted on a magnetic core 23, the moving coil being attached to the handle 2 and the magnetic core 23 on the machine housing 1, the moving coil 24 on the machine housing 1 and the magnetic core 23 on the handle 2.
  • This active damping element is not discussed in detail here, since exemplary embodiments thereof are sufficiently known from the prior art.
  • an active damping element functions in such a way that the relative movement of the handle 2 relative to the machine housing 1 or the force exerted on the handle 2 is sensed and the current through the plunger coil 24 is controlled as a function of the measured relative movement or force.
  • more than just one spring element or more than just one active damping element can also be used between the handle 2 and the machine housing.
  • the combination of spring element and active damping element is also possible.
  • the parallel oscillator is formed by two leaf springs 25 and 26, which are bent in such a way that they grip the handle 2 with its lower stop 17 Press the preload against the fixed arm 19.
  • a certain force must be exerted on the handle 2.
  • the handle 2 With appropriate setting of the bias of the leaf springs 25 and 26 it is achieved that with an average process force of z. B. 100N the handle 2 is moved so far that the fixed arm 19 is in the middle between the two stops 16 and 17. It can thus be avoided that the arm 19 hits the two stops 16 and 17 hard during the work process.
  • a damping element as shown in FIGS. 1, 2 and 4, can be inserted between the machine housing 1 and the horizontally extending leg 10 of the handle 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

The aim of the invention is to ensure a coupling between the handle (2) and the machine housing (1) of the hand tool machine which dampens the vibrations thereof as much as possible. The handle (2) is coupled to the machine housing (1) by at least two parallel levers (4, 5) which are essentially perpendicular to the longitudinal axis (3) of the hand tool machine. The levers (4, 5) are hingedly connected to both the machine housing (1) and the handle (2).

Description

Handwerkzeugmaschine mit vibrationsgedämpftem HandgriffHand tool with vibration-damped handle
Stand der TechnikState of the art
Die vorliegende Erfindung betrifft eine Handwerkzeugmaschine mit vibrationsgedämpftem Handgriff, welcher unter Einsatz von Dämpfungsmitteln mit dem Maschinengehäuse gekoppelt ist.The present invention relates to a handheld power tool with a vibration-damped handle, which is coupled to the machine housing using damping means.
Insbesondere bei Handwerkzeugmaschinen mit einem schlagenden Antrieb, z. B. Bohrhammer, Meißelhammer und dergleichen, entstehen recht starke Vibrationen in der Maschine, die auf den Handgriff der Maschine übertragen werden und für den Bediener nicht nur unangenehm sind, sondern auch gesundheitsschädlich sein können. Z. B. aus der DE 195 03 526 AI oder der US 5,697,456 sind Maßnahmen bekannt, um den Handgriff einer Handwerkzeugmaschine gegen Vibrationen zu dämpfen. Diese Maßnahmen bestehen z. B. darin, dass der Handgriff an einem Ende über eine dämpfende Feder oder ein Federsystem mit dem Maschinengehäuse gekoppelt ist und dass der Handgriff am gegenüberliegenden Ende mittels eines Drehgelenks mit dem Maschinengehäuse verbunden ist. In der DE 195 03 526 AI wird auch vorgeschlagen, dass der Handgriff an beiden Enden über ein vibrationsdämpfendes Material, z. B. thermoplastischer Elastomer-Kunststoff, mit dem Maschinengehäuse verbunden ist. Es ist also bisher üblich, den Handgriff an zwei Stellen mit dem Maschinengehäuse zu verbinden. Auch wenn ein oder beide Koppelstellen mit Dämpfungsmitteln versehen sind, findet trotzdem noch eine relativ hohe Überkopplung von Vibrationen aus dem Maschinengehäuse auf den Handgriff statt.Especially in handheld power tools with a striking drive, e.g. B. hammer drill, chisel hammer and the like, there are quite strong vibrations in the machine, which are transmitted to the handle of the machine and are not only uncomfortable for the operator, but can also be harmful to health. For example, from DE 195 03 526 AI or US 5,697,456 measures are known to dampen the handle of a hand tool against vibrations. These measures exist e.g. B. in that the handle is coupled at one end via a damping spring or a spring system to the machine housing and that the handle is connected at the opposite end by means of a swivel joint to the machine housing. In DE 195 03 526 AI it is also proposed that the handle at both ends via a vibration-damping material, for. B. thermoplastic elastomer plastic, connected to the machine housing is. So far, it has been customary to connect the handle to the machine housing at two points. Even if one or both coupling points are provided with damping means, there is still a relatively high coupling of vibrations from the machine housing to the handle.
Aus der WO 98/21014 j t es bekannt, zur Vibrationsdämpfung zwischen dem Handgriff und dem Maschinengehäuse ein oder mehrere aktive, elektrisch steuerbare Dämpfungselemente einzusetzen, die Vibrationen des Maschinengehäuses entgegenwirken .From WO 98/21014 it is known to use one or more active, electrically controllable damping elements for damping vibrations between the handle and the machine housing, which counteract vibrations of the machine housing.
Der Erfindung liegt die Aufgabe zu Grunde, eine Handwerkzeugmaschine mit einem Handgriff der eingangs genannten Art anzugeben, der möglichst weitgehend vibrationsgedämpft an das Maschinengehäuse der Handwerkzeugmaschine angekoppelt ist.The invention is based on the object of specifying a hand tool with a handle of the type mentioned, which is coupled as far as possible with vibration damping to the machine housing of the hand tool.
Vorteile der ErfindungAdvantages of the invention
Die genannte Aufgabe wird mit den Merkmalen des Anspruchs 1 dadurch gelöst, dass der Handgriff über zwei oder mehrere parallele, nahezu senkrecht zur Längsachse der Handwerkzeugmaschine ausgerichtete Hebel mit dem Maschinengehäuse gekoppelt ist, wobei die Hebel einerseits am Maschinengehäuse und andererseits am Handgriff angelenkt sind. Mit einer solchen sogenannten Parallelschwinge erhält der Handgriff eine recht hohe Stabilität und ist, weil er keine direkten Verbindungspunkte mit dem Maschinengehäuse mehr hat, sehr stark gegenüber Vibrationen des Maschinengehäuses entkoppelt. Vorteilhafte Weiterbildungen der Erfindung gehen aus den Unteranspruchen hervor.The stated object is achieved with the features of claim 1 in that the handle is coupled to the machine housing via two or more parallel levers aligned almost perpendicular to the longitudinal axis of the hand tool, the levers being articulated on the one hand on the machine housing and on the other hand on the handle. With such a so-called parallel rocker arm, the handle is very stable and, because it no longer has any direct connection points to the machine housing, is very decoupled from vibrations of the machine housing. Advantageous developments of the invention emerge from the subclaims.
Es ist zweckmäßig, dass bei jedem Hebel der Anlenkpunkt am Handgriff möglichst weit entfernt ist vom Anlenkpunkt am Maschinengehause. Damit ist gewahrleistet, dass die Relativbewegung zwischen dem Handgriff und dem Maschinengehause nahezu ausschließlich eine Komponente in Richtung der Langsachse der Handwerkzeugmaschine hat. Dabei ist es vorteilhaft, dass bei allen Hebeln die Abstände zwischen ihren jeweils zwei Anlenkpunkten nahezu gleich groß sind, wodurch unerwünschte Bewegungseffekte des Handgriffs vermieden werden.It is advisable that with each lever the pivot point on the handle is as far as possible from the pivot point on the machine housing. This ensures that the relative movement between the handle and the machine housing has almost exclusively one component in the direction of the longitudinal axis of the hand tool. It is advantageous that the distance between each of its two articulation points is almost the same for all levers, thereby avoiding undesirable movement effects of the handle.
Die Hebel können entweder alle im Maschinengehause untergebracht sein, oder es können auch ein oder mehrere Hebel in einem in etwa senkrecht zur Langsachse der Handwerkzeugmaschine verlaufenden Schenkel des Handgriffs platziert sein. Der Parallelschwinger kann somit platzsparend in der Handwerkzeugmaschine integriert werden.The levers can either all be accommodated in the machine housing, or one or more levers can also be placed in a leg of the handle that is approximately perpendicular to the longitudinal axis of the handheld power tool. The parallel oscillator can thus be integrated into the handheld power tool to save space.
Die Vibrationsdampfung für den Handgriff kann noch dadurch erhöht werden, dass an ein oder mehreren Stellen zwischen dem Handgriff und dem Maschinengehause Federelemente - vorzugsweise Druckfedern - eingefügt werden. Eine weitere Verbesserung der Vibrationsdampfung lasst sich dadurch erreichen, dass anstelle von rein passiven Federelementen ein oder mehrere aktive Dampfungselemente zwischen dem Handgriff und dem Maschinengehause angeordnet werden, die so steuerbar sind, dass sie Vibrationen des Maschinengehauses entgegenwirken .The vibration damping for the handle can be increased further by the fact that spring elements - preferably compression springs - are inserted at one or more points between the handle and the machine housing. A further improvement in vibration damping can be achieved in that instead of purely passive spring elements, one or more active damping elements are arranged between the handle and the machine housing, which are controllable in such a way that they counteract vibrations of the machine housing.
Die Hebel wirken besonders vibrationsdampfend, wenn sie als Blattfedern ausgebildet sind. Vorteilhafterweise sind die Blattfedern gegen eine auf den Handgriff in Richtung des Maschinengehauses ausgeübte Kraft vorgespannt.The levers are particularly vibration-damping if they are designed as leaf springs. These are advantageously Leaf springs biased against a force exerted on the handle towards the machine housing.
Es ist zweckmäßig, die Relativbewegung des Handgriffs gegenüber dem Maschinengehause durch ein oder mehrere Anschlage zu begrenzen.It is expedient to limit the relative movement of the handle with respect to the machine housing by means of one or more stops.
Zeichnungdrawing
Anhand von mehreren in der Zeichnung dargestelltenUsing several shown in the drawing
Ausfuhrungsbeispielen wird nachfolgend die Erfindung naher erläutert. Es zeigen:Exemplary embodiments, the invention is explained in more detail below. Show it:
Figur 1 eine Prinzipdarstellung eines mittels einesFigure 1 is a schematic representation of a means of
Parallelschwingers am Maschinengehause gelagertenParallel transducer mounted on the machine housing
Handgriffs,Handle,
Figur 2 eine praktische Ausfuhrung des an einemFigure 2 shows a practical implementation of the one
Maschinengehause mittels eines Parallelschwingers gelagertenMachine housing mounted by means of a parallel transducer
Handgriffs ,Handle,
Figur 3 eine Handwerkzeugmaschine, bei dem derFigure 3 is a hand tool, in which the
Pedalschwinger aus Blattfedern besteht,Pedal oscillator consists of leaf springs,
Figur 4 eine Handwerkzeugsmaschine mit einemFigure 4 shows a hand tool with a
Parallelschwinger und einem zwischen Handgriff undParallel transducer and one between handle and
Maschinengehause eingesetzten Dampfungselement undUsed damping element and
Figur 5 eine Handwerkzeugsmaschine mit einem aus vorgespannten Blattfedern bestehenden Parallelschwinger.Figure 5 shows a hand tool with a parallel oscillator consisting of preloaded leaf springs.
Beschreibung von AusfuhrungsbeispielenDescription of exemplary embodiments
In der Figur 1 ist schematisch eine Handwerkzeugmaschine, z. B. ein Bohrhammer oder Meißelhammer oder dergleichen, dargestellt. Die Handwerkzeugmaschine besteht aus einem Maschinengehause 1, in dem sich der Maschinenantrieb befindet, und einem mit dem Maschinengehause 1 gekoppelten Handgriff 2.In the figure 1 is a hand tool, z. B. a hammer drill or chisel hammer or the like. The hand machine tool consists of a machine housing 1, in which the machine drive is located, and a handle 2 coupled to the machine housing 1.
Der Handgriff 2 ist über eine Parallelschwinge mit dem Maschinengehause 1 gekoppelt. Diese Parallelschwinge besteht aus zwei parallel zueinander liegenden, nahezu senkrecht zur Langsachse 3 der Maschine ausgerichteten Hebeln 4 und 5. Anstelle der in der Zeichnung dargestellten zwei Hebe].4 und 5 können auch mehr als nur zwei parallele Hebel eingesetzt werden. Die Hebel 4 und 5 sind einerseits am Handgriff 2 und andererseits am Maschinengehause 1 so angelenkt, dass der Handgriff 2 eine Relativbewegung gegenüber dem Maschinengehause 1 nahezu ausschließlich in Richtung der Langsachse 3 vollziehen kann.The handle 2 is coupled to the machine housing 1 via a parallel rocker arm. This parallel rocker arm consists of two levers 4 and 5 lying parallel to each other and almost perpendicular to the longitudinal axis 3 of the machine. Instead of the two levers] .4 and 5 shown in the drawing, more than just two parallel levers can also be used. The levers 4 and 5 are articulated on the one hand on the handle 2 and on the other hand on the machine housing 1 so that the handle 2 can execute a relative movement with respect to the machine housing 1 almost exclusively in the direction of the longitudinal axis 3.
Damit zwischen dem Handgriff 2 und dem Maschinengehause 1 nur ein möglichst geringer Kippbewegungsanteil entstehen kann, sollte bei jedem Hebel 4 bzw. 5 der Anlenkpunkt 6 bzw.So that only the smallest possible amount of tilting movement can occur between the handle 2 and the machine housing 1, the articulation point 6 or
7 am Handgriff 2 möglichst weit entfernt vom Anlenkpunkt 8 bzw. 9 am Maschinengehause 1 sein. Um diese Voraussetzung möglichst gut zu erfüllen, sind die Anlenkpunkte 6, 7 für die beiden Hebel 4, 5 am oberen Ende, vorzugsweise einem parallel zur Langsachse 3 verlaufenden Schenkel 10, des Handgriffs 2 angeordnet. Die beiden anderen Anlenkpunkte 8 und 9 der Hebel 4 und 5 befinden sich an einem am unteren Ende des Maschinengehäuses 1 vorhandenen Trager 11. Die Anlenkpunkte 6, 7, 8, 9 der einzelnen Hebel 4, 5 sind so gelegt, dass bei jedem Hebel 4, 5 die beiden Anlenkpunkte 6,7 on the handle 2 as far as possible from the articulation point 8 or 9 on the machine housing 1. In order to fulfill this requirement as well as possible, the articulation points 6, 7 for the two levers 4, 5 of the handle 2 are arranged at the upper end, preferably a leg 10 running parallel to the longitudinal axis 3. The two other articulation points 8 and 9 of the levers 4 and 5 are located on a support 11 provided at the lower end of the machine housing 1. The articulation points 6, 7, 8, 9 of the individual levers 4, 5 are arranged in such a way that each lever 4 , 5 the two articulation points 6,
8 bzw. 7, 9 gleiche Abstände zueinander haben. Bei unterschiedlichen Abstanden können nämlich unerwünschte Bewegungseffekte am Handgriff - Bewegungskomponenten, die von einer Bewegung des Handgriffs in Richtung der Maschinenlangsachse abweichen - entstehen. Zwischen dem oberen Ende, dem waagerecht verlaufenden Schenkel 10, des Handgriffs 2 und dem Maschinengehause 1 sind Dampfungsmittel 12, vorzugsweise ein oder mehrere Druckfedern, eingefugt.8 or 7, 9 have the same distances from each other. With different distances, undesirable movement effects on the handle - movement components that deviate from a movement of the handle in the direction of the machine longitudinal axis - can arise. Steaming means 12, preferably one or more compression springs, are inserted between the upper end, the horizontally extending leg 10, the handle 2 and the machine housing 1.
Aufgrund der über eine Parallelschwinge ausgeführten Kopplung zwischen dem Handgriff 2 und dem Maschinengehause 1 entstehen keine direkten Verbindungsstellen zwischen beiden, so dass Vibrationen im Maschinengehause 1 nur sehr stark gedampft auf den Handgriff 2 übertragen werden.Due to the coupling between the handle 2 and the machine housing 1, which is carried out via a parallel rocker arm, there are no direct connection points between the two, so that vibrations in the machine housing 1 are transmitted to the handle 2 only in a very damped manner.
Wahrend in der Figur 1 die Ankopplung des Handgriffs 2 an das Maschinengehause 1 mittels einer Parallelschwinge sehr schematisch dargestellt ist, um das Funktionsprinzip deutlich zu machen, ist in der Figur 2 ein mehr an eine praktische Umsetzung orientiertes Ausfuhrungsbeispiel derselben Ankopplung eines Handgriffs 2 an ein Maschinengehause 1 einer Handwerkzeugmaschine dargestellt. Alle bereits im Zusammenhang mit Figur 1 beschriebenen und dieselbe Funktion ausfuhrenden Teile sind in der Figur 2 mit den gleichen Bezugszeichen wie in Figur 1 versehen.While the coupling of the handle 2 to the machine housing 1 by means of a parallel rocker arm is shown very schematically in FIG. 1 in order to make the functional principle clear, FIG. 2 shows an exemplary embodiment of the same coupling of a handle 2 to a machine housing that is more geared towards practical implementation 1 of a handheld power tool. All parts already described in connection with FIG. 1 and performing the same function are provided in FIG. 2 with the same reference numerals as in FIG. 1.
Der Figur 2 ist zu entnehmen, dass für die als Dampfungsmittel zwischen dem Handgriff 2 und dem Maschinengehause 1 eingesetzte Druckfeder 12 ein Anschlag 13 am Maschinengehause 1 und ein Anschlag 14 am Handgriff 2 angeordnet ist.It can be seen from FIG. 2 that a stop 13 is arranged on the machine housing 1 and a stop 14 on the handle 2 for the compression spring 12 used as the damping agent between the handle 2 and the machine housing 1.
Eine sehr platzsparende Unterbringung des Parallelschwingers kann dadurch erfolgen, dass mindestens einer der Hebel 4, 5 in dem senkrecht zur Langsachse 13 der Handwerkzeugmaschine verlaufenden Schenkel des Handgriffs 2 untergebracht ist. Zu diesem Zweck ragt der am Maschinengehause 1 angeordnete Trager 11 für den Anlenkpunkt 9 des Hebels 5 bis zu dem senkrecht zur Langsachse 3 verlaufenden Schenkel des Handgriffs 2 vor. Das untere Ende dieses senkrecht zur Langsachse 3 verlaufenden Schenkels des Handgriffs 2 kann mit einem den Trager 11 umgebenden Stutzen 15 versehen sein. Dieser Stutzen 15 bildet lediglich einen Abschluss zwischen dem Trager 11 und dem Handgriff 2, er hat aber nicht die Funktion einer mechanischen Fuhrung für den Handgriff 2.The parallel oscillator can be accommodated in a very space-saving manner in that at least one of the levers 4, 5 is accommodated in the leg of the handle 2 running perpendicular to the longitudinal axis 13 of the handheld power tool. For this purpose, the carrier 11 arranged on the machine housing 1 for the articulation point 9 of the lever 5 extends up to the leg of the arm which extends perpendicular to the longitudinal axis 3 Handle 2 before. The lower end of this leg of the handle 2 running perpendicular to the longitudinal axis 3 can be provided with a socket 15 surrounding the support 11. This connector 15 merely forms a termination between the carrier 11 and the handle 2, but it does not have the function of a mechanical guide for the handle 2.
Je weiter die Hebel 4, 5 des Parallelschwingers voneinander entfernt angeordnet sind, desto großer ist die Stabilität des Handgriffs. Insofern fuhrt das Ausfuhrungsbeispiel in Figur 2, bei dem der eine Hebel 4 im Maschinengehause 1 und der andere Hebel 5 relativ weit vom Hebel 4 entfernt im Handgriff 2 angeordnet ist, zu einer hohen Stabilität des Handgriffs 2. Auch die Breite (in Richtung senkrecht zur Zeichenebene) der Hebel 4, 5 wirkt sich stabilitatsverstarkend aus.The farther apart the levers 4, 5 of the parallel oscillator are, the greater the stability of the handle. In this respect, the exemplary embodiment in FIG. 2, in which one lever 4 is arranged in the machine housing 1 and the other lever 5 is located relatively far from the lever 4 in the handle 2, leads to a high stability of the handle 2. Also the width (in the direction perpendicular to Level of the drawing) of levers 4, 5 increases stability.
Es können aber auch beide Hebel 4, 5 des Parallelschwingers im Maschinengehause 1 integriert werden.However, both levers 4, 5 of the parallel oscillator can also be integrated in the machine housing 1.
Der beschriebene Parallelschwinger, bestehend aus den Hebeln 4, 5 kann auf nur einer Seite des Handgriffs 2, wie in den Figuren 1 und 2 dargestellt, angeordnet sein; es können aber auch auf beiden Seiten - in Richtung quer zur Langsaches 3 der Maschine gesehen - des Handgriffs 2 Parallelschwinger vorgesehen werden.The parallel oscillator described, consisting of the levers 4, 5, can be arranged on only one side of the handle 2, as shown in FIGS. 1 and 2; but it can also be provided on both sides - in the direction transverse to the longitudinal object 3 of the machine - of the handle 2 parallel oscillators.
Bei dem in der Figur 3 dargestellten Ausfuhrungsbeispiel werden die Relativbewegungen des Handgriffs 2 gegenüber dem Maschinengehause 1 durch einen oberen Anschlag 16 und einen unteren Anschlag 17 begrenzt. Die beiden Anschlage 16 und 17 sind am waagerecht verlaufenden Schenkel 10 des Handgriffs 2 angeformt. Diese beiden Anschlage 16 und 17 können beispielsweise Innenwände einer Aussparung in dem waagerecht verlaufenden Schenkel 10 des Handgriffs 2 sein. In diese Aussparung 18 ragt ein mit dem Maschinengehäuse 1 fest verbundener Arm 19 hinein. Die Bewegung des Handgriffs 2 vom Maschinengehäuse 1 weg wird dadurch begrenzt, dass der Arm 19 gegen den unteren Anschlag 17 stößt. Die Bewegung des Handgriffs 2 zum Maschinengehäuse 1 hin wird dadurch begrenzt, dass der Arm 19 auf den oberen Anschlag 16 trifft. Der Abstand der beiden Anschläge 16 und 17 gibt also den Bewegungsspielraum für den Handgriff 2 vor. In Umkehrung zu dem dargestellten Ausführungsbeispiel können die beiden Anschläge 16 und 17 auch am Maschinengehäuse 1 und der Arm 19 am Handgriff 2 angeordnet sein. Es kann auch nur ein oberer oder unterer Anschlag am Maschinengehäuse 1 bzw. am Handgriff 2 vorgesehen werden.In the exemplary embodiment shown in FIG. 3, the relative movements of the handle 2 relative to the machine housing 1 are limited by an upper stop 16 and a lower stop 17. The two stops 16 and 17 are formed on the horizontally extending leg 10 of the handle 2. These two stops 16 and 17 can, for example, be inner walls of a recess in the horizontally extending leg 10 of the handle 2. In these Recess 18 projects into arm 19, which is firmly connected to machine housing 1. The movement of the handle 2 away from the machine housing 1 is limited in that the arm 19 abuts the lower stop 17. The movement of the handle 2 towards the machine housing 1 is limited by the arm 19 striking the upper stop 16. The distance between the two stops 16 and 17 thus specifies the freedom of movement for the handle 2. In reverse to the illustrated embodiment, the two stops 16 and 17 can also be arranged on the machine housing 1 and the arm 19 on the handle 2. It is also possible to provide only an upper or lower stop on the machine housing 1 or on the handle 2.
Bei den in der Figur 1 und 2 dargestellten Ausführungsbeispielen sind die den Parallelschwinger bildenden Hebel 4 und 5 starr ausgebildet. In den in den Figuren 3 bis 5 dargestellten Ausfuhrungsbeispielen handelt es sich um als Blattfedern ausgebildete Hebel 20 und 21. Die beiden Blattfedern 20 und 21 sind einerseits in dem waagerecht verlaufenden Schenkel 10 des Handgriffs 2 und andererseits am Gehäuse 1, beispielsweise am Träger 11, verankert. Die Blattfedern 20 und 21 sind mit ihren Breitseiten quer zur Bewegungsrichtung des Handgriffs 2 ausgerichtet, so dass sie in Richtung der Längsachse 3 der Handwerkzeugmaschine durchbiegbar und in Richtung quer dazu steif sind. Durch die federnde Wirkung der Hebel 20, 21 des Parallelschwingers können vom Maschinengehäuse 1 in Richtung auf den Handgriff 2 ausgehende Vibrationen in hohem Maß aufgefangen werden.In the exemplary embodiments shown in FIGS. 1 and 2, the levers 4 and 5 forming the parallel oscillator are rigid. The exemplary embodiments shown in FIGS. 3 to 5 are levers 20 and 21 designed as leaf springs. The two leaf springs 20 and 21 are on the one hand in the horizontally extending leg 10 of the handle 2 and on the other hand on the housing 1, for example on the carrier 11, anchored. The broad sides of the leaf springs 20 and 21 are aligned transversely to the direction of movement of the handle 2, so that they can be bent in the direction of the longitudinal axis 3 of the hand-held power tool and are rigid in the direction transverse thereto. Due to the resilient action of the levers 20, 21 of the parallel oscillator, vibrations emanating from the machine housing 1 in the direction of the handle 2 can be absorbed to a high degree.
Wegen der federnden Wirkung der als Blattfedern ausgebildeten Hebel 20 und 21 kann eventuell, wie in Figur 3 dargestellt, auf das zwischen dem Gehäuse 1 und dem Handgriff 2 eingesetzte Federelemente 12 verzichtet werden. Ein Federelement kann aber zusätzlich zur Aufnahme von Vibrationen zwischen dem Maschinengehause 1 und dem Handgriff 2 eingesetzt werden, oder wie in der Figur 4 dargestellt, durch ein aktives Dampfungselement 22 ersetzt werden, das z. B. eletrisch so steuerbar ist, dass es Vibrationen des Maschinengehauses 1 entgegenwirkt. Aktive Dampfungselemente, die bei Handwerkzeugmaschinen zur Vibrations-dampfung des Handgriffs eingesetzt werden, sind z. B. aus der WO 98/21014 oder der EP 0 206 981 A2 bekannt. Prinzipiell bestehen solche aktiven Dampfungselemente aus einer auf einem Magnetkern 23 verschiebbar gelagerten Tauchspule 24, wobei die Tauchspule am Handgriff 2 und der Magnetkern 23 am Maschinengehause 1 bzw. die Tauchspule 24 am Maschinengehause 1 und der Magnetkern 23 am Handgriff 2 befestigt ist. Auf die genaue Funktionsweise dieses aktiven Dampfungsgliedes wird hier nicht detailliert eingegangen, da Ausfuhrungsbeispiele davon hinreichend aus dem Stand der Technik bekannt sind. Prinzipiell funktioniert aber ein aktives Dampfungselement so, dass die Relativbewegung des Handgriffs 2 gegenüber dem Maschinengehause 1 bzw. die auf den Handgriff 2 ausgeübte Kraft sensiert und der Strom durch die Tauchspule 24 in Abhängigkeit von der gemessenen Relativbewegung bzw. Kraft gesteuert wird.Because of the resilient effect of the levers 20 and 21 designed as leaf springs, the spring elements 12 inserted between the housing 1 and the handle 2 may be dispensed with, as shown in FIG. 3. However, a spring element can additionally be used to absorb vibrations between the machine housing 1 and the handle 2, or, as shown in FIG. 4, can be replaced by an active damping element 22 which, for. B. is electrically controllable so that it counteracts vibrations of the machine housing 1. Active damping elements that are used in handheld power tools for vibration dampening of the handle are e.g. B. from WO 98/21014 or EP 0 206 981 A2. In principle, such active damping elements consist of a moving coil 24 mounted on a magnetic core 23, the moving coil being attached to the handle 2 and the magnetic core 23 on the machine housing 1, the moving coil 24 on the machine housing 1 and the magnetic core 23 on the handle 2. The exact functioning of this active damping element is not discussed in detail here, since exemplary embodiments thereof are sufficiently known from the prior art. In principle, however, an active damping element functions in such a way that the relative movement of the handle 2 relative to the machine housing 1 or the force exerted on the handle 2 is sensed and the current through the plunger coil 24 is controlled as a function of the measured relative movement or force.
Abweichend von den dargestellten Ausfuhrungsbeispielen können zwischen dem Handgriff 2 und dem Maschinengehause auch mehr als nur ein Federelement oder mehr als nur ein aktives Dampfungselement eingesetzt werden. Auch die Kombination von Federelement und aktivem Dampfungselement ist möglich.In a departure from the exemplary embodiments shown, more than just one spring element or more than just one active damping element can also be used between the handle 2 and the machine housing. The combination of spring element and active damping element is also possible.
Bei dem in der Figur 5 gezeigten Ausführungsbeispiel wird der Parallelschwinger durch zwei Blattfedern 25 und 26 gebildet, welche in der Weise verbogen sind, dass sie den Handgriff 2 mit seinem unteren Anschlag 17 mit einer Vorspannung gegen den feststehenden Arm 19 drücken. Um diese Vorspannung zu überwinden, muss eine gewisse Kraft auf den Handgriff 2 ausgeübt werden. Bei entsprechender Einstellung der Vorspannung der Blattfedern 25 und 26 wird erreicht, dass bei einer mittleren Prozesskraft von z. B. 100N der Handgriff 2 soweit verschoben wird, dass sich der feststehende Arm 19 in der Mitte zwischen den beiden Anschlägen 16 und 17 befindet. Damit kann vermieden werden, dass es während des Arbeitsprozesses zu einem harten Anschlag des Arms 19 an die beiden Anschläge 16 und 17 kommt. Auch bei dem in der Figur 5 dargestellten Ausführungsbeispiel kann zwischen dem Maschinengehäuse 1 und dem waagerecht verlaufenden Schenkel 10 des Handgriffs 2 ein Dämpfungselement, wie in den Figuren 1, 2 und 4 dargestellt, eingefügt werden. In the exemplary embodiment shown in FIG. 5, the parallel oscillator is formed by two leaf springs 25 and 26, which are bent in such a way that they grip the handle 2 with its lower stop 17 Press the preload against the fixed arm 19. To overcome this bias, a certain force must be exerted on the handle 2. With appropriate setting of the bias of the leaf springs 25 and 26 it is achieved that with an average process force of z. B. 100N the handle 2 is moved so far that the fixed arm 19 is in the middle between the two stops 16 and 17. It can thus be avoided that the arm 19 hits the two stops 16 and 17 hard during the work process. In the exemplary embodiment shown in FIG. 5, a damping element, as shown in FIGS. 1, 2 and 4, can be inserted between the machine housing 1 and the horizontally extending leg 10 of the handle 2.

Claims

Ansprüche Expectations
1. Handwerkzeugmaschine mit vibrationsgedampftem Handgriff, welcher unter Einsatz von Dampfungsmitteln (12) mit dem Maschinengehause (1) gekoppelt ist, dadurch gekennzeichnet, dass der Handgriff (2) über zwei oder mehrere parallele, nahezu senkrecht zur Langsachse (3) der Handwerkzeugmaschine ausgerichtete Hebel (4, 5, 20, 21, 25, 26) mit dem Maschinengehause (1) gekoppelt ist, wobei die Hebel (4, 5, 20, 21, 25, 26) einerseits am Maschinengehause (1) und andererseits am Handgriff (2) angelenkt sind.1. Hand tool with vibration-damped handle, which is coupled to the machine housing (1) using steaming means (12), characterized in that the handle (2) has two or more parallel levers aligned almost perpendicular to the longitudinal axis (3) of the hand tool (4, 5, 20, 21, 25, 26) is coupled to the machine housing (1), the levers (4, 5, 20, 21, 25, 26) on the one hand on the machine housing (1) and on the other hand on the handle (2 ) are articulated.
2. Handwerkzeugmaschine nach Anspruch 1, dadurch gekennzeichnet, dass bei jedem Hebel (4, 5, 20, 21, 25, 26) der Anlenkpunkt (6, 7) am Handgriff (2) möglichst weit entfernt ist vom Anlenkpunkt (8, 9) am Maschinengehause (1).2. Hand tool according to claim 1, characterized in that for each lever (4, 5, 20, 21, 25, 26) the articulation point (6, 7) on the handle (2) is as far as possible from the articulation point (8, 9) on the machine housing (1).
3. Handwerkzeugmaschine nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass bei allen Hebeln (4, 5, 20, 21, 25, 26) die Abstände zwischen ihren jeweils zwei Anlenkpunkten (6, 7, 8, 9) nahezu gleich groß sind.3. Hand tool according to one of claims 1 or 2, characterized in that for all levers (4, 5, 20, 21, 25, 26), the distances between their two articulation points (6, 7, 8, 9) are almost the same size are.
4. Handwerkzeugmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Hebel (4, 5, 20, 21, 25, 26) im Maschinengehause (1) untergebracht sind .4. Hand tool according to one of the preceding claims, characterized in that the lever (4, 5, 20, 21, 25, 26) are housed in the machine housing (1).
5. Handwerkzeugmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass mindestens ein Hebel (5) in einem in etwa senkrecht zur Langsachse (3) der Handwerkzeugmaschine verlaufenden Schenkel des Handgriffs (2) platziert ist.5. Hand tool according to one of claims 1 to 3, characterized in that at least one lever (5) is placed in an approximately perpendicular to the longitudinal axis (3) of the hand tool leg of the handle (2).
6. Handwerkzeugmaschine nach Anspruch 1, dadurch gekennzeichnet, dass der Handgriff (2) an dem Maschinengehause (1) an ein oder mehreren Stellen über ein Federelement (12) - vorzugsweise eine Druckfeder — abgestutzt ist.6. Hand tool according to claim 1, characterized in that the handle (2) on the machine housing (1) at one or more points via a spring element (12) - preferably a compression spring - is supported.
7. Handwerkzeugmaschine nach Anspruch 1, dadurch gekennzeichnet, dass an ein oder mehreren Stellen zwischen dem Handgriff (2) und dem Maschinengehause (1) ein aktives Dampfungselement (22) angeordnet ist, das so steuerbar ist, dass es Vibrationen des Maschinengehauses (1) entgegenwirkt.7. Hand tool according to claim 1, characterized in that an active damping element (22) is arranged at one or more points between the handle (2) and the machine housing (1), which is controllable so that it vibrates the machine housing (1) counteracts.
8. Handwerkzeugmaschine nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Hebel Blattfedern (20,8. Hand tool according to one of claims 1 to 5, characterized in that the lever leaf springs (20,
21, 25, 26) sind.21, 25, 26).
9. Handwerkzeugmaschine nach Anspruch 8, dadurch gekennzeichnet, dass die Blattfedern (25, 26) gegen eine auf den Handgriff (2) in Richtung des Maschinengehauses9. Hand tool according to claim 8, characterized in that the leaf springs (25, 26) against one on the handle (2) in the direction of the machine housing
(1) ausgeübte Kraft vorgespannt sind.(1) exerted force are biased.
10. Handwerkzeugmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Relativbewegung des Handgriffs (2) gegenüber dem Maschinengehause (1) durch ein oder mehrere Anschlage (16, 17) begrenzt ist. 10. Hand tool according to one of the preceding claims, characterized in that the relative movement of the handle (2) relative to the Machine housing (1) is limited by one or more stops (16, 17).
EP02714050A 2001-04-11 2002-02-20 Hand tool machine comprising a vibration-dampened handle Expired - Lifetime EP1404493B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE2001118037 DE10118037A1 (en) 2001-04-11 2001-04-11 Power tool handle, e.g. for a hammer drill, has a parallel lever linkage for mounting at the tool housing together with a damper spring to dampen vibrations at the handle when using the tool
DE10118037 2001-04-11
DE10138123 2001-08-03
DE2001138123 DE10138123A1 (en) 2001-08-03 2001-08-03 Power tool handle, e.g. for a hammer drill, has a parallel lever linkage for mounting at the tool housing together with a damper spring to dampen vibrations at the handle when using the tool
PCT/DE2002/000622 WO2002083369A1 (en) 2001-04-11 2002-02-20 Hand tool machine comprising a vibration-dampened handle

Publications (2)

Publication Number Publication Date
EP1404493A1 true EP1404493A1 (en) 2004-04-07
EP1404493B1 EP1404493B1 (en) 2007-02-14

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EP02714050A Expired - Lifetime EP1404493B1 (en) 2001-04-11 2002-02-20 Hand tool machine comprising a vibration-dampened handle

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US (1) US7100706B2 (en)
EP (1) EP1404493B1 (en)
JP (1) JP4157382B2 (en)
CN (1) CN1273271C (en)
DE (1) DE50209495D1 (en)
WO (1) WO2002083369A1 (en)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10005080C1 (en) * 2000-02-04 2001-08-02 Bosch Gmbh Robert Hand tool has handle with handle part fixed to casing by elastic, vibration-damping element and fixing part fixed at elastic element
DE10162633B4 (en) * 2001-12-20 2012-12-06 Hilti Aktiengesellschaft Stud gun
DE10255162A1 (en) 2002-11-22 2004-06-03 Hilti Ag Vibration-decoupled hammer mechanism assembly
GB2402098B (en) * 2003-05-21 2007-10-17 Black & Decker Inc Vibration reduction apparatus for power tool and power tool incorporating such apparatus
JP2005074573A (en) * 2003-09-01 2005-03-24 Makita Corp Reciprocating working tool
EP1514648B1 (en) * 2003-09-10 2013-11-20 Makita Corporation Vibration isolating handle
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
DE10355103B4 (en) * 2003-11-24 2010-03-18 Itw-Befestigungssysteme Gmbh Vibration-damped handle for a hand-held power tool
DE10361812A1 (en) * 2003-12-30 2005-07-28 Robert Bosch Gmbh Hand tool
DE102004019776A1 (en) * 2004-04-23 2005-11-17 Robert Bosch Gmbh Hand tool, in particular drill and / or percussion hammer
DE102004041219A1 (en) * 2004-08-26 2006-03-02 Robert Bosch Gmbh Hand machine tool grip device with a vibration shielding unit
DE102004051465A1 (en) 2004-10-22 2006-04-27 Robert Bosch Gmbh Hand tool with vibration damped pistol handle
DE102004055758B4 (en) * 2004-11-18 2018-05-09 Andreas Stihl Ag & Co. Kg Anti-vibration element of a hand-held implement
DE102004061522A1 (en) * 2004-12-21 2006-06-29 Hilti Ag Side handle
DE102006004776B4 (en) * 2005-02-17 2022-05-05 Andreas Stihl Ag & Co. Kg Hand-held, portable suction/blowing device
DE102005007547A1 (en) 2005-02-18 2006-08-31 Robert Bosch Gmbh Hand tool
SE529839C2 (en) * 2005-05-26 2007-12-04 Atlas Copco Constr Tools Ab Switching tool with vibrated handle device
JP2006346199A (en) * 2005-06-16 2006-12-28 Ryobi Ltd Blowing and sucking device
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
DE102005047353A1 (en) * 2005-10-04 2007-04-05 Robert Bosch Gmbh Electric-powered machine tool e.g. hand-operated power drill, for use in pistol construction, has flange to drive train and divided into drive end and gear end bearing bracket units connected with each other by vibration damping unit
DE102005000205A1 (en) * 2005-12-23 2007-06-28 Hilti Ag Handle of a hand-held tool device
DE102005062883A1 (en) * 2005-12-29 2007-07-05 Robert Bosch Gmbh Power tool e.g. angle grinder has vibration reduction devices including auxiliary gauge that is connected by displacement unit, where vibration reduction devices are rigidly fastened at power tool
GB2431610A (en) * 2006-03-03 2007-05-02 Black & Decker Inc Handle Damping System
KR101024564B1 (en) 2006-03-07 2011-03-31 히다치 고키 가부시키 가이샤 Electrical power tool
DE102006016442A1 (en) * 2006-04-07 2007-10-11 Robert Bosch Gmbh Hand tool with vibration-damped handle
DE102006021307A1 (en) * 2006-05-08 2007-11-15 Robert Bosch Gmbh Hand tool with a vibration-damped handle
CA2873135A1 (en) * 2006-05-31 2007-11-30 Ingersoll-Rand Company Structural support for power tool housings
DE102006034078A1 (en) * 2006-06-02 2007-12-06 Robert Bosch Gmbh Grinding hand tool machine and vibration decoupling device of an abrasive hand tool machine
JP4626574B2 (en) * 2006-06-16 2011-02-09 日立工機株式会社 Electric tool
DE102006029630A1 (en) * 2006-06-28 2008-01-03 Robert Bosch Gmbh Hand tool
JP4756473B2 (en) * 2006-07-20 2011-08-24 日立工機株式会社 Electric tool
DE102006051924A1 (en) * 2006-11-03 2008-05-15 Robert Bosch Gmbh Hand tool with a vibration-damped, provided with a switch handle
DE102006052807A1 (en) * 2006-11-09 2008-05-15 Robert Bosch Gmbh Hand tool with a vibration-damped strap handle
DE102007001591A1 (en) * 2007-01-10 2008-07-17 Aeg Electric Tools Gmbh Portable, hand-held machine tool
GB2431133A (en) * 2007-01-17 2007-04-18 Black & Decker Inc A power tool with vibration reduction apparatus
US8100745B2 (en) * 2007-03-16 2012-01-24 Black & Decker Inc. Low vibration sander with a flexible top handle
DE102007028382A1 (en) * 2007-06-20 2008-12-24 Robert Bosch Gmbh Hand tool housing unit
GB2451293A (en) 2007-07-27 2009-01-28 Black & Decker Inc Hammer drill with slidably mounted handle
DE102007037043A1 (en) * 2007-08-06 2009-02-12 Robert Bosch Gmbh Auxiliary handle device
DE102007060057A1 (en) * 2007-12-13 2009-06-18 Robert Bosch Gmbh Hand tool
DE102007055843A1 (en) * 2007-12-17 2009-06-25 Hilti Aktiengesellschaft Hand tool with vibration compensator
GB0801304D0 (en) * 2008-01-24 2008-03-05 Black & Decker Inc Hammer drill
CN101676052B (en) * 2008-09-19 2013-10-30 德昌电机(深圳)有限公司 Electric drill with force sensing device
CA2743880C (en) 2008-11-18 2020-08-18 James Robertson Petrie Recombinant cells comprising exogenous a5 elongase and methods for producing docosapentaenoic acid
DE102009014970A1 (en) * 2009-03-18 2010-09-23 C. & E. Fein Gmbh Oscillation tool with vibration damping
DE102009002589A1 (en) * 2009-04-23 2010-10-28 Hilti Aktiengesellschaft Hand tool
GB2472997A (en) * 2009-08-26 2011-03-02 Black & Decker Inc Hammer drill with vibration damping means in handle
DE102010043810A1 (en) * 2010-11-12 2012-05-16 Hilti Aktiengesellschaft Hand tool
GB201112825D0 (en) * 2011-07-26 2011-09-07 Black & Decker Inc A hammer drill
EP2809470B1 (en) 2012-02-03 2020-01-15 Milwaukee Electric Tool Corporation Rotary hammer
US9849577B2 (en) 2012-02-03 2017-12-26 Milwaukee Electric Tool Corporation Rotary hammer
US8966773B2 (en) 2012-07-06 2015-03-03 Techtronic Power Tools Technology Limited Power tool including an anti-vibration handle
US20140262402A1 (en) * 2013-03-14 2014-09-18 Robert Bosch Gmbh Power Hand Tool with Vibration Isolation
JP6070945B2 (en) * 2013-05-28 2017-02-01 日立工機株式会社 Portable work machine
EP2848370A1 (en) 2013-09-12 2015-03-18 HILTI Aktiengesellschaft Manual tool machine
EP2898991B1 (en) 2014-01-23 2018-12-26 Black & Decker Inc. Rear handle
EP2898992B1 (en) 2014-01-23 2016-05-04 Black & Decker Inc. Power tool with rear handle, method of manufacturing a part of a handle assembly for a power tool and method of disassembling a part of a handle assembly for a power tool
EP2898993B1 (en) * 2014-01-23 2019-01-30 Black & Decker Inc. Power tool
EP2898994A1 (en) 2014-01-23 2015-07-29 Black & Decker Inc. Power tool with rear handle
DE102015015321A1 (en) * 2014-11-28 2016-06-02 Makita Corporation impact tool
US12021437B2 (en) 2019-06-12 2024-06-25 Milwaukee Electric Tool Corporation Rotary power tool
JP2022119301A (en) * 2021-02-04 2022-08-17 株式会社マキタ impact tool

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3845827A (en) * 1971-08-05 1974-11-05 Stihl Maschf Andreas Portable implement,especially motor chain saw
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
DE3521808A1 (en) * 1985-06-19 1987-01-02 Hilti Ag VIBRATING HAND TOOL
DE3839207A1 (en) 1988-11-19 1990-05-23 Hilti Ag PORTABLE HAND DEVICE WITH STRIKE
JPH0825249A (en) * 1994-07-12 1996-01-30 Makita Corp Vibrating tool and vibration isolating ring
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
US5697456A (en) 1995-04-10 1997-12-16 Milwaukee Electric Tool Corp. Power tool with vibration isolated handle
DE19631517A1 (en) * 1996-08-03 1998-02-05 Wacker Werke Kg Variable-speed, hand-held power tool driven by an electric motor that can be connected to single-phase alternating current
DE19646622B4 (en) 1996-11-12 2004-07-01 Wacker Construction Equipment Ag Tool that can be carried in one movement
US5769174A (en) * 1996-12-18 1998-06-23 Ingersoll-Rand Company Parallel displacement single axis vibration isolator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02083369A1 *

Also Published As

Publication number Publication date
WO2002083369A1 (en) 2002-10-24
DE50209495D1 (en) 2007-03-29
US20030132016A1 (en) 2003-07-17
EP1404493B1 (en) 2007-02-14
CN1273271C (en) 2006-09-06
JP4157382B2 (en) 2008-10-01
US7100706B2 (en) 2006-09-05
JP2004518553A (en) 2004-06-24
CN1460049A (en) 2003-12-03

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