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EP1431005A2 - Percussion electric hand tool - Google Patents

Percussion electric hand tool Download PDF

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Publication number
EP1431005A2
EP1431005A2 EP03104752A EP03104752A EP1431005A2 EP 1431005 A2 EP1431005 A2 EP 1431005A2 EP 03104752 A EP03104752 A EP 03104752A EP 03104752 A EP03104752 A EP 03104752A EP 1431005 A2 EP1431005 A2 EP 1431005A2
Authority
EP
European Patent Office
Prior art keywords
striking
machine tool
electric hand
hand machine
axis
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
EP03104752A
Other languages
German (de)
French (fr)
Other versions
EP1431005A3 (en
EP1431005B1 (en
Inventor
Holger Cecchin
Christian Daubner
Hubert Daxenberger
David Hruza
Christoph Josef Kink
Ferdinand Kristen
Erwin Manschitz
Hans-Jürgen Horst Georg Pfisterer
Walter Wissmach
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
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP1431005A2 publication Critical patent/EP1431005A2/en
Publication of EP1431005A3 publication Critical patent/EP1431005A3/en
Application granted granted Critical
Publication of EP1431005B1 publication Critical patent/EP1431005B1/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
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/06—Means for driving the impulse member
    • B25D11/12—Means for driving the impulse member comprising a crank mechanism
    • B25D11/125—Means for driving the impulse member comprising a crank mechanism with a fluid cushion between the crank drive and the striking body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/003—Crossed drill and motor spindles

Definitions

  • the invention describes an at least partially striking Electric hand machine tool such as a combination hammer or chisel hammer.
  • the technical effort in this regard is passive damping or active regulated vibration suppression increases with the complexity of the compensated Self-excitation.
  • a chisel hammer has one on it, directly to the eccentric of the striking mechanism assembly, the rotor axis is freely cantilevered Reluctance motor, which is thus arranged completely on one side of the flapping axis.
  • the center of gravity thus offset from the striking axis to the reluctance motor the interaction with the workpiece and the hand-arm system of the user Bending moments and this ultimately leads to complex, non-axial vibrations.
  • a reluctance motor directly connected to the eccentric necessarily slow rotating, which makes this a high mass / power ratio for reluctance motors having.
  • a chisel hammer with a striking mechanism assembly has a radial one to the stroke axis largely symmetrical mass distribution by the Percussion mechanism gear to a part of the engine diametrically with respect to the striking axis is arranged.
  • the space requirement of the engine in the core area of the flapping axis is conditional constructively a large axial distance from the eccentric, which excites bending moments become.
  • the object of the invention is to realize an at least partially beating electric hand machine tool with largely analytically simple excitation.
  • the core area of the flapping axis is only penetrated by the rotor shaft, which in addition to a largely symmetrical mass distribution of the electric motor radially to the impact axis is arranged close to the eccentric and thus less bending moments are excited.
  • the rotor shaft is advantageously directly adjacent to a crankshaft of the eccentric arranged by an eccentric pinion as part of the striking mechanism gear directly with the Motor pinion meshes on the rotor shaft, which means that their distance is only through both pinion radii is determined.
  • the eccentric pinion is advantageous as an external pinion of the crankshaft or alternatively as Internal pinion formed a hollow crankshaft, which makes the distance by the sum or the difference of the pinion radii is determined.
  • the electric motor is advantageously mounted on two bearing points via the rotor shaft in the hammer mechanism gearbox, further advantageous in a gearbox housing and in one Bearing cap, optionally made of lightweight die-cast aluminum, which enables precise guidance of the meshing motor pinion is achieved.
  • the rotor laminated core is advantageously designed so that it projects freely there is no bearing on the sheet metal package side, which means that the engine's center of gravity is closer is shifted to the flapping axis.
  • a low-mass fan wheel on the front end remote from the sheet metal package is advantageous the rotor shaft arranged, whereby no space close to the axis is required.
  • the missing bearing point also simplifies the design of an engine housing.
  • the electric motor is advantageous as a brushless motor, further advantageous as a reluctance motor trained, whereby a high power / mass ratio can be realized.
  • the striking mechanism assembly and the electric motor advantageously have a common one Focus on the stroke axis, which leads to analytically simple excitations.
  • a striking along a striking axis A has Electric hand machine tool 1 with an electric motor 2 designed as a reluctance motor a rotor shaft 3 arranged transversely to the impact axis A with a rotor laminated core 4 and a motor pinion 5.
  • a striking mechanism assembly 6 with an eccentric 7 is over a Impact mechanism gear 8 meshed driven by the motor pinion 5.
  • the rotor core 4 is completely diametrical to the striking mechanism gear 8 with respect to the striking axis A. arranged.
  • the rotor shaft 3 is immediately adjacent to a crankshaft 9 of the Eccentric 7 arranged by an outer eccentric pinion 10 as part of the Impact mechanism gear 8 meshes directly with the motor pinion 5 on the rotor shaft 3.
  • the electric motor 2 is mounted on the rotor shaft 3 at two bearing points 11a, 11b in Impact mechanism gear 8 made of light aluminum die-cast, bearing 11a in a gear housing 12 and the bearing 11 b is arranged in a bearing cover 13.
  • the rotor shaft 3 is designed with the rotor lamination stack 4 to project freely and on the End of the rotor shaft 3 remote from the sheet-metal package is a low-mass fan wheel 14 arranged.
  • the striking mechanism gear 8 is 90% diametrical with respect to the striking axis A. arranged to the electric motor 2, whereby the common center of gravity S the Percussion mechanism assembly 8 and the electric motor 2 lies on the striking axis A.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The drive of the hammer drill (1) is assembled of a vertically positioned rotor shaft (3) with a rotor assembly (4) attached at one end and a drive pinion (5) driving the hammer unit (6) with a bolt (7) positioned off center and engaging with the hammer gear (8) attached to the opposite end. A fan wheel (14) is located at the bottom of the unit. The center of gravity shared by the hammer unit (6) and the electric drive (2) is located on the hammer axle.

Description

Die Erfindung bezeichnet eine zumindest teilweise schlagende Elektrohandwerkzeugmaschine wie einen Kombihammer oder Meisselhammer.The invention describes an at least partially striking Electric hand machine tool such as a combination hammer or chisel hammer.

Ein Werkzeug schlagend antreibende Elektrohandwerkzeugmaschinen weisen durch die Wechselwirkung mit dem Werkstück und dem Hand-Arm-System des Nutzers sowie der internen Massen und Steifigkeitsverteilung eine komplexe Eigenerregung auf, deren resultierende Eigenvibration, insbesondere im Handgriffbereich, weitestgehend zu unterdrücken ist. Der technische Aufwand diesbezüglicher passiv dämpfenden oder aktiv geregelten Vibrationsunterdrückungen steigt mit der Komplexität der zu kompensierenden Eigenerregung.A hand-held electric machine tool driving through the Interaction with the workpiece and the user's hand-arm system as well as the internal masses and stiffness distribution on a complex self-excitation, their resulting self-vibration, especially in the handle area, largely suppress. The technical effort in this regard is passive damping or active regulated vibration suppression increases with the complexity of the compensated Self-excitation.

Nach der EP0107628 weist ein Meisselhammer einen an seiner, unmittelbar zum Exzenter der Schlagwerksbaugruppe verlängerten, Rotorachse frei auskragend gelagerten Reluktanzmotor auf, der somit vollständig einseitig der Schlagachse angeordnet ist. Der somit von der Schlagachse zum Reluktanzmotor versetzte Massenschwerpunkt führt durch die Wechselwirkung mit dem Werkstück und dem Hand-Arm-System des Nutzers zu Biegemomenten und diese schliesslich zu komplexen, nicht axialen Vibrationen. Zudem ist ein direkt mit dem Exzenter verbundener Reluktanzmotor notwendigerweise langsam rotierend, wodurch dieser ein für Reluktanzmotoren hohes Masse / Leistungs-Verhältnis aufweist.According to EP0107628, a chisel hammer has one on it, directly to the eccentric of the striking mechanism assembly, the rotor axis is freely cantilevered Reluctance motor, which is thus arranged completely on one side of the flapping axis. The center of gravity thus offset from the striking axis to the reluctance motor the interaction with the workpiece and the hand-arm system of the user Bending moments and this ultimately leads to complex, non-axial vibrations. In addition is a reluctance motor directly connected to the eccentric necessarily slow rotating, which makes this a high mass / power ratio for reluctance motors having.

Nach der EP1238759 weist ein Meisselhammer mit einer Schlagwerksbaugruppe eine radial zur Schlagachse weitgehend symmetrische Masseverteilung auf, indem das Schlagwerksgetriebe zu einem Teil des Motors diametral bezüglich der Schlagachse angeordnet ist. Der Raumbedarf des Motors im Kernbereich der Schlagachse bedingt konstruktiv einen grossen axialen Abstand zum Exzenter, wodurch Biegemomente erregt werden.According to EP1238759, a chisel hammer with a striking mechanism assembly has a radial one to the stroke axis largely symmetrical mass distribution by the Percussion mechanism gear to a part of the engine diametrically with respect to the striking axis is arranged. The space requirement of the engine in the core area of the flapping axis is conditional constructively a large axial distance from the eccentric, which excites bending moments become.

Die Aufgabe der Erfindung besteht in der Realisierung einer zumindest teilweise schlagenden Elektrohandwerkzeugmaschine mit weitgehend analytisch einfacher Erregung. The object of the invention is to realize an at least partially beating electric hand machine tool with largely analytically simple excitation.

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

Im Wesentlichen weist eine zumindest teilweise längs einer Schlagachse schlagende Elektrohandwerkzeugmaschine einen Elektromotor mit einer quer zur Schlagachse angeordneten Rotorwelle mit einem Rotorblechpaket und einem Motorritzel auf, welche eine Schlagwerksbaugruppe mit einem Exzenter über ein Schlagwerksgetriebe kämmend antreibt, wobei das Rotorblechpaket bezüglich der Schlagachse vollständig diametral zum Schlagwerksgetriebe angeordnet ist.In essence, one that strikes at least partially along an impact axis Electric hand machine tool an electric motor with a cross to the flapping axis arranged rotor shaft with a rotor core and a motor pinion, which a Combing striking mechanism assembly with an eccentric via a striking mechanism gear drives, the rotor laminated core with respect to the flapping axis completely diametrically Percussion mechanism gear is arranged.

Durch das vollständig diametral zum Schlagwerksgetriebe angeordnete Rotorblechpaket wird der Kernbereich der Schlagachse nur von der Rotorwelle durchsetzt, wodurch neben einer radial zur Schlagachse weitgehend symmetrischen Masseverteilung der Elektromotor nahe am Exzenter angeordnet ist und somit weniger Biegemomente erregt werden.Thanks to the rotor laminated core, which is arranged completely diametrically to the striking gear mechanism the core area of the flapping axis is only penetrated by the rotor shaft, which in addition to a largely symmetrical mass distribution of the electric motor radially to the impact axis is arranged close to the eccentric and thus less bending moments are excited.

Vorteilhaft ist die Rotorwelle unmittelbar benachbart zu einer Kurbelwelle des Exzenters angeordnet, indem ein Exzenterritzel als Teil des Schlagwerksgetriebes direkt mit dem Motorritzel auf der Rotorwelle kämmt, wodurch deren Abstand nur durch beide Ritzelradien bestimmt wird.The rotor shaft is advantageously directly adjacent to a crankshaft of the eccentric arranged by an eccentric pinion as part of the striking mechanism gear directly with the Motor pinion meshes on the rotor shaft, which means that their distance is only through both pinion radii is determined.

Vorteilhaft ist das Exzenterritzel als Aussenritzel der Kurbelwelle oder alternativ als Innenritzel einer hohlen Kurbelwelle ausgebildet, wodurch der Abstand durch die Summe bzw. die Differenz der Ritzelradien bestimmt wird.The eccentric pinion is advantageous as an external pinion of the crankshaft or alternatively as Internal pinion formed a hollow crankshaft, which makes the distance by the sum or the difference of the pinion radii is determined.

Vorteilhaft erfolgt die Lagerung des Elektromotors über die Rotorwelle an zwei Lagerstellen im Schlagwerksgetriebe, weiter vorteilhaft in einem Getriebegehäuse und in einem Lagerdeckel, optional aus leichtem Aluminiumdruckguss, wodurch eine präzise Führung des kämmenden Motorritzels erzielt wird.The electric motor is advantageously mounted on two bearing points via the rotor shaft in the hammer mechanism gearbox, further advantageous in a gearbox housing and in one Bearing cap, optionally made of lightweight die-cast aluminum, which enables precise guidance of the meshing motor pinion is achieved.

Vorteilhaft ist das Rotorblechpaket frei auskragend ausgebildet, wodurch eine massebehaftete blechpaketseitige Lagerstelle entfällt, wodurch der Motorschwerpunkt näher zur Schlagachse verlagert wird.The rotor laminated core is advantageously designed so that it projects freely there is no bearing on the sheet metal package side, which means that the engine's center of gravity is closer is shifted to the flapping axis.

Vorteilhaft ist ein massearmes Lüfterrad an dem achsfernen, blechpaketseitigen Stirnende der Rotorwelle angeordnet, wodurch kein achsnaher Bauraum beansprucht wird. Bei einer weiter vorteilhaften Kombination mit dem frei auskragenden Rotorblechpaket wird durch die fehlende Lagerstelle zudem die konstruktive Gestaltung eines Motorgehäuses vereinfacht. A low-mass fan wheel on the front end remote from the sheet metal package is advantageous the rotor shaft arranged, whereby no space close to the axis is required. At a Another advantageous combination with the freely projecting rotor laminated core is the missing bearing point also simplifies the design of an engine housing.

Vorteilhaft ist der Elektromotor als bürstenloser Motor, weiter vorteilhaft als Reluktanzmotor ausgebildet, wodurch ein hohes Leistungs / Masse - Verhältnis realisierbar ist.The electric motor is advantageous as a brushless motor, further advantageous as a reluctance motor trained, whereby a high power / mass ratio can be realized.

Vorteilhaft weisen die Schlagwerksbaugruppe und der Elektromotor einen gemeinsamen Schwerpunkt auf der Schlagachse auf, wodurch analytisch einfachere Erregungen auftreten.The striking mechanism assembly and the electric motor advantageously have a common one Focus on the stroke axis, which leads to analytically simple excitations.

Die Erfindung wird bezüglich eines vorteilhaften Ausführungsbeispiels näher erläutert mit der Darstellung einer Elektrohandwerkzeugmaschine im Teillängsschnitt.The invention is explained in more detail with respect to an advantageous embodiment Representation of an electric hand machine tool in partial longitudinal section.

Nach der Darstellung weist eine längs einer Schlagachse A schlagende Elektrohandwerkzeugmaschine 1 einen als Reluktanzmotor ausgebildeten Elektromotor 2 mit einer quer zur Schlagachse A angeordneten Rotorwelle 3 mit einem Rotorblechpaket 4 und einem Motorritzel 5 auf. Eine Schlagwerksbaugruppe 6 mit einem Exzenter 7 ist über ein Schlagwerksgetriebe 8 kämmend von dem Motorritzel 5 angetrieben. Das Rotorblechpaket 4 ist bezüglich der Schlagachse A vollständig diametral zum Schlagwerksgetriebe 8 angeordnet. Die Rotorwelle 3 ist unmittelbar benachbart zu einer Kurbelwelle 9 des Exzenters 7 angeordnet, indem ein äusseres Exzenterritzel 10 als Teil des Schlagwerksgetriebes 8 direkt mit dem Motorritzel 5 auf der Rotorwelle 3 kämmt. Die Lagerung des Elektromotors 2 erfolgt über die Rotorwelle 3 an zwei Lagerstellen 11a, 11b im Schlagwerksgetriebe 8 aus leichtem Aluminiumdruckguss, wobei die Lagerstelle 11a in einem Getriebegehäuse 12 und die Lagerstelle 11 b in einem Lagerdeckel 13 angeordnet ist. Die Rotorwelle 3 ist mit dem Rotorblechpaket 4 frei auskragend ausgebildet und an dem achsfernen, blechpaketseitigen Stirnende der Rotorwelle 3 ist ein massearmes Lüfterrad 14 angeordnet. Das Schlagwerksgetriebe 8 ist zu 90% bezüglich der Schlagachse A diametral zum Elektromotor 2 angeordnet, wodurch der gemeinsame Schwerpunkt S der Schlagwerksbaugruppe 8 und des Elektromotors 2 auf der Schlagachse A liegt.According to the illustration, a striking along a striking axis A has Electric hand machine tool 1 with an electric motor 2 designed as a reluctance motor a rotor shaft 3 arranged transversely to the impact axis A with a rotor laminated core 4 and a motor pinion 5. A striking mechanism assembly 6 with an eccentric 7 is over a Impact mechanism gear 8 meshed driven by the motor pinion 5. The rotor core 4 is completely diametrical to the striking mechanism gear 8 with respect to the striking axis A. arranged. The rotor shaft 3 is immediately adjacent to a crankshaft 9 of the Eccentric 7 arranged by an outer eccentric pinion 10 as part of the Impact mechanism gear 8 meshes directly with the motor pinion 5 on the rotor shaft 3. The The electric motor 2 is mounted on the rotor shaft 3 at two bearing points 11a, 11b in Impact mechanism gear 8 made of light aluminum die-cast, bearing 11a in a gear housing 12 and the bearing 11 b is arranged in a bearing cover 13. The rotor shaft 3 is designed with the rotor lamination stack 4 to project freely and on the End of the rotor shaft 3 remote from the sheet-metal package is a low-mass fan wheel 14 arranged. The striking mechanism gear 8 is 90% diametrical with respect to the striking axis A. arranged to the electric motor 2, whereby the common center of gravity S the Percussion mechanism assembly 8 and the electric motor 2 lies on the striking axis A.

Claims (7)

Elektrohandwerkzeugmaschine zum zumindest teilweise längs einer Schlagachse (A) schlagenden Antrieb eines Werkzeugs mit einem Elektromotor (2) mit einer quer zur Schlagachse (A) angeordneten Rotorwelle (3) mit einem Rotorblechpaket (4) und einem Motorritzel (5), welches eine Schlagwerksbaugruppe (6) mit einem Exzenter (7) über ein Schlagwerksgetriebe (8) kämmend antreibt, dadurch gekennzeichnet, dass das Rotorblechpaket (4) bezüglich der Schlagachse (A) vollständig diametral zum Schlagwerksgetriebe (8) angeordnet ist.Electric hand machine tool for driving a tool at least partially along a striking axis (A) with an electric motor (2) with a rotor shaft (3) arranged transversely to the striking axis (A) with a rotor laminated core (4) and a motor pinion (5) which has a striking mechanism assembly ( 6) meshing with an eccentric (7) via a striking mechanism gear (8), characterized in that the rotor laminated core (4) is arranged completely diametrically to the striking mechanism gear (8) with respect to the striking axis (A). Elektrohandwerkzeugmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die Rotorwelle (3) unmittelbar benachbart zu einer Kurbelwelle (9) des Exzenters (7) angeordnet ist, indem ein Exzenterritzel (10) als Teil des Schlagwerksgetriebes (8) direkt mit dem Motorritzel (5) auf der Rotorwelle (3) kämmt.Electric hand machine tool according to claim 1, characterized in that the rotor shaft (3) is arranged directly adjacent to a crankshaft (9) of the eccentric (7) in that an eccentric pinion (10) as part of the striking mechanism gear (8) directly with the motor pinion (5) combs on the rotor shaft (3). Elektrohandwerkzeugmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Lagerung des Elektromotors (2) über die Rotorwelle (3) an zwei Lagerstellen (11a, 11b) im Schlagwerksgetriebe (8) erfolgt, optional in einem Getriebegehäuse (12) und in einem Lagerdeckel (13).Electric hand machine tool according to claim 1 or 2, characterized in that the electric motor (2) is mounted on the rotor shaft (3) at two bearing points (11a, 11b) in the impact mechanism gearbox (8), optionally in a gearbox housing (12) and in a bearing cap (13). Elektrohandwerkzeugmaschine nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Rotorblechpaket (4) frei auskragend ausgebildet ist.Electric hand machine tool according to one of the preceding claims, characterized in that the rotor laminated core (4) is freely cantilevered. Elektrohandwerkzeugmaschine nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass ein Lüfterrad (14) an dem achsfernen, blechpaketseitigen Stirnende der Rotorwelle (3) angeordnet ist.Electric hand machine tool according to one of the preceding claims, characterized in that a fan wheel (14) is arranged on the end of the rotor shaft (3) which is remote from the axis and on the side of the laminated core. Elektrohandwerkzeugmaschine nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Elektromotor (2) als bürstenloser Motor ausgebildet ist.Electric hand machine tool according to one of the preceding claims, characterized in that the electric motor (2) is designed as a brushless motor. Elektrohandwerkzeugmaschine nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Schlagwerksbaugruppe (8) und der Elektromotor (2) einen gemeinsamen Schwerpunkt (S) auf der Schlagachse (A) aufweisen.Electric hand machine tool according to one of the preceding claims, characterized in that the striking mechanism assembly (8) and the electric motor (2) have a common center of gravity (S) on the striking axis (A).
EP03104752A 2002-12-19 2003-12-17 Percussion electric hand tool Expired - Lifetime EP1431005B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10259566A DE10259566A1 (en) 2002-12-19 2002-12-19 Hitting electric hand machine tool
DE10259566 2002-12-19

Publications (3)

Publication Number Publication Date
EP1431005A2 true EP1431005A2 (en) 2004-06-23
EP1431005A3 EP1431005A3 (en) 2009-07-01
EP1431005B1 EP1431005B1 (en) 2013-03-06

Family

ID=32336474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03104752A Expired - Lifetime EP1431005B1 (en) 2002-12-19 2003-12-17 Percussion electric hand tool

Country Status (6)

Country Link
US (1) US7048076B2 (en)
EP (1) EP1431005B1 (en)
JP (1) JP4648624B2 (en)
CN (1) CN100341669C (en)
DE (1) DE10259566A1 (en)
PL (1) PL204879B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007077052A1 (en) * 2005-12-29 2007-07-12 Robert Bosch Gmbh Portable power tool, in particular a hammer drill and/or rotary hammer
EP3670095A1 (en) * 2018-12-20 2020-06-24 Hilti Aktiengesellschaft Handheld machine tool
EP4324597A1 (en) 2022-08-18 2024-02-21 Hilti Aktiengesellschaft Drill hammer or chisel hammer with a vibration-reduced impact mechanism unit

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005017482B4 (en) * 2005-04-15 2007-05-03 Compact Dynamics Gmbh Gas exchange valve actuator for a valve-controlled internal combustion engine
DE102005017481B4 (en) * 2005-04-15 2007-08-30 Compact Dynamics Gmbh Linear Actuator
DE102005017483B4 (en) * 2005-04-15 2007-04-05 Compact Dynamics Gmbh Linear actuator in an electric impact tool
DE102005061399A1 (en) 2005-12-22 2007-07-05 Robert Bosch Gmbh Hand power tool e.g. drill hammer or chipping hammer, has driven element of axial drive unit which is mounted directly on torque transmission wheel
GB2433716A (en) * 2005-12-29 2007-07-04 Bosch Gmbh Robert Hammer drill and/or hammer chisel with bevel gear
DE102006005852A1 (en) * 2006-02-09 2007-08-23 Robert Bosch Gmbh Hand tool, in particular drill and / or chisel hammer
GB2431610A (en) * 2006-03-03 2007-05-02 Black & Decker Inc Handle Damping System
DE102006035975A1 (en) * 2006-08-02 2008-02-07 Robert Bosch Gmbh Power tool
JP5574156B2 (en) * 2010-03-05 2014-08-20 日立工機株式会社 Bolt tightening machine
DE102011082093A1 (en) * 2011-09-02 2013-03-07 Robert Bosch Gmbh Handle device for a hand tool
DE102013202248A1 (en) * 2012-05-29 2013-12-05 Robert Bosch Gmbh Tool device for hand-held power tool used in drilling hammer, has surface profiles which are provided in region of sliding connection of guide elements and sliding elements for transferring fluid
CN104084934A (en) * 2014-07-03 2014-10-08 长沙启科电子有限公司 Novel intelligent control direct-current brushless electric pick
EP3697574A1 (en) 2017-10-20 2020-08-26 Milwaukee Electric Tool Corporation Percussion tool
WO2019147919A1 (en) 2018-01-26 2019-08-01 Milwaukee Electric Tool Corporation Percussion tool
EP3901498A1 (en) * 2020-04-21 2021-10-27 Hilti Aktiengesellschaft Electro-pneumatic percussion mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE736794C (en) 1935-04-14 1943-06-28 Siemens Ag Impact tool with crank drive
EP0107628A1 (en) 1982-09-22 1984-05-02 Institut Cerac S.A. A hand-held hammer tool
EP1238759A1 (en) 2001-03-07 2002-09-11 Black & Decker Inc. Hammer

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1938660C3 (en) * 1969-07-30 1975-05-15 Metabowerke Kg, Closs, Rauch & Schnizler, 7440 Nuertingen Hammer drill
US3718193A (en) * 1971-02-18 1973-02-27 Bosch Gmbh Robert Cooling system for portable impulse transmitting machines
US3921729A (en) * 1971-11-25 1975-11-25 Hilti Ag Electropneumatic hammer
DE2516406C3 (en) * 1975-04-15 1981-11-19 Robert Bosch Gmbh, 7000 Stuttgart Hammer drill
EP0025153B1 (en) * 1979-08-31 1983-08-31 Black & Decker Inc. Portable tool such as a rotary hammer or the like
US4462467A (en) * 1981-11-09 1984-07-31 Hilti Aktiengesellschaft Percussion drill machine
SE443940B (en) * 1982-09-22 1986-03-17 Atlas Copco Ab SHIPPING TOOL DRIVEN BY REPLACEABLE ENGINE PART
DE3311422A1 (en) * 1983-03-29 1984-10-04 Hilti Ag, Schaan Electric-motor-driven hand-held apparatus
JPS60108280A (en) * 1983-11-18 1985-06-13 三菱電機株式会社 Electric striking device
JPS62192881U (en) * 1986-05-29 1987-12-08
DE19832946A1 (en) * 1998-07-22 2000-01-27 Hilti Ag Hand drill with air-powered hammer mechanism
DE10033362A1 (en) * 2000-07-08 2002-01-17 Hilti Ag Electric hand tool with empty stroke shutdown
DE10059747A1 (en) * 2000-12-01 2002-06-06 Hilti Ag Electric hand tool with safety clutch
DE10117123A1 (en) * 2001-04-06 2002-10-17 Bosch Gmbh Robert Hand tool
DE10254813A1 (en) * 2002-11-23 2004-06-03 Hilti Ag Electric hand machine tool with vibration-decoupled hammer mechanism assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE736794C (en) 1935-04-14 1943-06-28 Siemens Ag Impact tool with crank drive
EP0107628A1 (en) 1982-09-22 1984-05-02 Institut Cerac S.A. A hand-held hammer tool
EP1238759A1 (en) 2001-03-07 2002-09-11 Black & Decker Inc. Hammer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007077052A1 (en) * 2005-12-29 2007-07-12 Robert Bosch Gmbh Portable power tool, in particular a hammer drill and/or rotary hammer
EP3670095A1 (en) * 2018-12-20 2020-06-24 Hilti Aktiengesellschaft Handheld machine tool
WO2020126089A1 (en) * 2018-12-20 2020-06-25 Hilti Aktiengesellschaft Hand-held power tool
US11364611B2 (en) 2018-12-20 2022-06-21 Hilti Aktiengesellschaft Hand-held power tool
EP4324597A1 (en) 2022-08-18 2024-02-21 Hilti Aktiengesellschaft Drill hammer or chisel hammer with a vibration-reduced impact mechanism unit
WO2024037881A1 (en) 2022-08-18 2024-02-22 Hilti Aktiengesellschaft Hammer drill or chipping hammer having a vibration-reduced hammer-mechanism unit

Also Published As

Publication number Publication date
CN1507988A (en) 2004-06-30
CN100341669C (en) 2007-10-10
JP4648624B2 (en) 2011-03-09
JP2004195648A (en) 2004-07-15
US7048076B2 (en) 2006-05-23
PL204879B1 (en) 2010-02-26
US20040182589A1 (en) 2004-09-23
DE10259566A1 (en) 2004-07-01
EP1431005A3 (en) 2009-07-01
EP1431005B1 (en) 2013-03-06
PL364131A1 (en) 2004-06-28

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