EP1452278A1 - Steuerverfahren einer axial schlagenden und drehenden Elektrohandwerkzeugmaschine - Google Patents
Steuerverfahren einer axial schlagenden und drehenden Elektrohandwerkzeugmaschine Download PDFInfo
- Publication number
- EP1452278A1 EP1452278A1 EP04100792A EP04100792A EP1452278A1 EP 1452278 A1 EP1452278 A1 EP 1452278A1 EP 04100792 A EP04100792 A EP 04100792A EP 04100792 A EP04100792 A EP 04100792A EP 1452278 A1 EP1452278 A1 EP 1452278A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control method
- computing means
- clutch
- tool
- sensor
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000009527 percussion Methods 0.000 title 1
- 238000001514 detection method Methods 0.000 claims abstract 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 230000003252 repetitive effect Effects 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
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
- B25D11/005—Arrangements for adjusting the stroke of the impulse member or for stopping the impact action when the tool is lifted from the working surface
-
- 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
- B25D2250/141—Magnetic parts used in percussive tools
- B25D2250/145—Electro-magnetic parts
-
- 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
- B25D2250/195—Regulation means
- B25D2250/205—Regulation means for torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/221—Sensors
Definitions
- the invention relates to a control method of an at least partially axially striking and rotating electric hand machine tool like a combi hammer or one Chisel.
- DE3707052 has an axially striking and rotating Electric hand machine tool in the power flow between an electric motor and one Tool holder on an electromagnetic safety coupling, which with a Microcontroller is controllably connected, which is connected to sensors and their Control procedure for a tool blockage separates the flow of force.
- an electric impact wrench has a weak one Electric motor, a gearbox and an electromagnetic one behind it Coupling on, which triggers tangential shocks by this when freely running or the electric motor braked by the workpiece is switched on and off depending on the speed.
- the task is to realize an at least partially axially striking and rotating electric hand machine tool with a control method for generating Tangentialangen.
- a control method for an axially striking and rotating Electric hand machine tool in which the power flow between an electric motor and a tool holder an electromagnetic clutch is arranged, which with a computer is controllably connected, which is connected to sensors, in the safety coupling at least one process step controlled by the computing means repeatedly opened and closed alternately.
- the coupling with a frequency in the range of is advantageous 20 Hz to 100 Hz alternately opened and closed, whereby the frequency of the Tangential beats much greater than the natural frequency of those in the hand-arm system guided electric hand machine tool.
- This method step is advantageous in the case of one from the computing means via the sensor detected, further advantageous with respect to a rotation of the housing or the slip the clutch, impending tool blockage initiated, which at least in some cases the tool blockage can be averted by the tangential strikes.
- the sensor is advantageous as a metal detector, for example as a leakage current detector, as a capacitive one or inductive proximity switch, etc. formed, whereby in particular Impact drilling in concrete on reinforcement iron hits via the initiated tangential impacts Probability of a tool blockage can be reduced.
- the computing means with a manually operated switch is advantageous Pushbuttons, via which this process step can be initiated manually, thereby these tangential beats can be preselected manually.
- Electric hand machine tools are capable of such a control method expandable so that the probability of a tool blockage can be actively reduced.
- computing means advantageously in the form of a microcontroller, are used appropriate software algorithms implemented.
- the 1 has an axially striking and rotating electric hand machine tool 1 in Shape of a hammer drill in the power flow between an electric motor 2 and one Tool holder 3 an electromagnetic designed as a safety clutch Coupling 4, which is equipped with a computing means 5 designed as a microcontroller is controllably connected, which is connected to sensors 6a, 6b, 6c.
- the sensor 6a is a arranged in the housing 7 of the electric hand machine tool 1 Acceleration sensor.
- the sensor 6b is arranged in the clutch 4 Slip sensor.
- the sensor 6c is arranged in the tool holder 3 Kriechstromsensor.
- a manually operable switch 8 is on the outside of the housing 7 arranged and controllably connected to the computing means 5.
- the clutch 4 is repeatedly opened and closed alternately in a method step initiated by the computing means 5 at time t 0 , the period in which the electromagnetic clutch 4 is alternately opened and closed being 20 ms, which is a frequency of 50 Hz corresponds.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
Description
Claims (5)
- Steuerverfahren für eine zumindest teilweise axial schlagende und drehende Elektrohandwerkzeugmaschine (1), bei welcher im Kraftfluss zwischen einem Elektromotor (2) und einer Werkzeugaufnahme (3) eine elektromagnetische Kupplung (4) angeordnet ist, welche mit einem Rechenmittel (5) steuerbar verbunden ist, welches mit zumindest einem Sensor (6a, 6b, 6c) verbunden ist, dadurch gekennzeichnet, dass in zumindest einem vom Rechenmittel (5) gesteuerten Verfahre nsschritt die Kupplung (4) wiederholt alternierend geöffnet und geschlossen wird.
- Steuerverfahren nach Anspruch 1, dadurch gekennzeichnet, dass in diesem Verfahrensschritt die Kupplung (4) mit einer Frequenz im Bereich von 20 Hz bis 100 Hz alternierend geöffnet und geschlossen wird.
- Steuerverfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass dieser Verfahrensschritt bei einer vom Rechenmittel (5) über den Sensor (6a, 6b, 6c) detektierten drohenden Werkzeugblockade initiiert wird, optional bezüglich einer Verdrehung eines Gehäuses (7) der Elektrohandwerkzeugmaschine (1), bezüglich des Schlupfes der Kupplung (4) oder bezüglich der Detektion von Metall.
- Steuerverfahren nach Anspruch 1, dadurch gekennzeichnet, dass dieser Verfahrensschritt manuell über einen mit dem Rechenmittel (5) verbunden, manuell betätigbaren Schalter (8) initiierbar ist.
- Elektrohandwerkzeugmaschine mit zumindest teilweise axial schlagenden und drehenden Antrieb einer Werkzeugaufnahme (3), bei welcher im Kraftfluss zwischen einem Elektromotor (2) und der Werkzeugaufnahme (3) eine elektromagnetische Kupplung (4) angeordnet ist, welche mit einem, mit zumindest einem Sensor (6a, 6b, 6c) verbundenen, Rechenmittel (5) steuerbar verbunden ist, dadurch gekennzeichnet, dass die elektromagnetische Kupplung (4) nach einem Steuerverfahren nach einem der vorherigen Ansprüche vom Rechenmittel (5) steuerbar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10309012A DE10309012B3 (de) | 2003-03-01 | 2003-03-01 | Steuerverfahren einer axial schlagenden und drehenden Elektrohandwerkzeugmaschine |
DE10309012 | 2003-03-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1452278A1 true EP1452278A1 (de) | 2004-09-01 |
EP1452278B1 EP1452278B1 (de) | 2011-05-11 |
Family
ID=32695228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04100792A Expired - Lifetime EP1452278B1 (de) | 2003-03-01 | 2004-03-01 | Steuerverfahren einer axial schlagenden und drehenden Elektrohandwerkzeugmaschine |
Country Status (4)
Country | Link |
---|---|
US (1) | US6981557B2 (de) |
EP (1) | EP1452278B1 (de) |
JP (1) | JP4580663B2 (de) |
DE (1) | DE10309012B3 (de) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2407528A (en) * | 2003-10-07 | 2005-05-04 | Bosch Gmbh Robert | Hand machine tool with an impact mechanism |
GB2410205A (en) * | 2004-01-22 | 2005-07-27 | Bosch Gmbh Robert | Handle with detection device |
WO2010040491A1 (de) | 2008-10-07 | 2010-04-15 | Wacker Neuson Se | Arbeitsgerät mit überholkupplung |
EP2189249A1 (de) * | 2008-11-25 | 2010-05-26 | Robert Bosch GmbH | Handwerkzeugmaschinenvorrichtung und Handwerkzeugmaschine |
EP2447010A1 (de) * | 2010-10-28 | 2012-05-02 | HILTI Aktiengesellschaft | Steuerungsverfahren für eine Werkzeugmaschine und eine Werkzeugmaschine |
USD703017S1 (en) | 2011-01-07 | 2014-04-22 | Black & Decker Inc. | Screwdriver |
US9199362B2 (en) | 2010-01-07 | 2015-12-01 | Black & Decker Inc. | Power tool having rotary input control |
US9266178B2 (en) | 2010-01-07 | 2016-02-23 | Black & Decker Inc. | Power tool having rotary input control |
CN105436566A (zh) * | 2015-12-26 | 2016-03-30 | 宁波鑫晟工具有限公司 | 电钻 |
EP3023200A1 (de) * | 2014-11-20 | 2016-05-25 | HILTI Aktiengesellschaft | Steuerungsverfahren für einen Bohrhammer |
US9475180B2 (en) | 2010-01-07 | 2016-10-25 | Black & Decker Inc. | Power tool having rotary input control |
US10589413B2 (en) | 2016-06-20 | 2020-03-17 | Black & Decker Inc. | Power tool with anti-kickback control system |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10316844A1 (de) * | 2003-04-11 | 2004-11-04 | Hilti Ag | Steuerung einer Elektrohandwerkzeugmaschine |
US7395871B2 (en) * | 2003-04-24 | 2008-07-08 | Black & Decker Inc. | Method for detecting a bit jam condition using a freely rotatable inertial mass |
DE10353013A1 (de) * | 2003-11-13 | 2005-06-16 | Robert Bosch Gmbh | Handwerkzeugmaschine |
WO2006020571A2 (en) * | 2004-08-11 | 2006-02-23 | William Szieff | Tool with motion and orientation indicators |
US7552781B2 (en) | 2004-10-20 | 2009-06-30 | Black & Decker Inc. | Power tool anti-kickback system with rotational rate sensor |
JP4742613B2 (ja) * | 2005-02-24 | 2011-08-10 | マックス株式会社 | ドリル工具 |
DE102005013120A1 (de) * | 2005-03-18 | 2006-09-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Bohrmaschine mit Metalldetektor |
DE102005037254A1 (de) * | 2005-08-08 | 2007-02-15 | Robert Bosch Gmbh | Elektrowerkzeugmaschine sowie Überlastschutzvorrichtung |
JP5041575B2 (ja) * | 2006-03-07 | 2012-10-03 | 日立工機株式会社 | 打撃工具 |
US8316958B2 (en) * | 2006-07-13 | 2012-11-27 | Black & Decker Inc. | Control scheme for detecting and preventing torque conditions in a power tool |
US8798183B2 (en) * | 2007-08-13 | 2014-08-05 | Qualcomm Incorporated | Feedback and rate adaptation for MIMO transmission in a time division duplexed (TDD) communication system |
SE532395C2 (sv) * | 2008-05-08 | 2010-01-12 | Atlas Copco Tools Ab | Kraftverktyg för åtdragning av skruvförband samt frikoppling |
KR100918174B1 (ko) * | 2008-07-16 | 2009-09-17 | 주식회사 만도 | 변위 가변형 쇽업소버의 유동 피스톤 밸브 |
JP5537055B2 (ja) * | 2009-03-24 | 2014-07-02 | 株式会社マキタ | 電動工具 |
JP5537122B2 (ja) * | 2009-11-02 | 2014-07-02 | 株式会社マキタ | 電動工具 |
DE102009046789A1 (de) * | 2009-11-17 | 2011-05-19 | Robert Bosch Gmbh | Handwerkzeugmaschinenvorrichtung |
KR20120091331A (ko) * | 2009-12-17 | 2012-08-17 | 닛또 세이꼬 가부시키가이샤 | 나사부품 체결해제장치 |
GB2490447A (en) | 2010-01-07 | 2012-10-31 | Black & Decker Inc | Power screwdriver having rotary input control |
DE102012208913A1 (de) * | 2012-05-25 | 2013-11-28 | Robert Bosch Gmbh | Schlagwerkeinheit |
DE102012208855A1 (de) * | 2012-05-25 | 2013-11-28 | Robert Bosch Gmbh | Handwerkzeugmaschine |
WO2014034862A1 (ja) * | 2012-09-03 | 2014-03-06 | 株式会社マキタ | 打撃工具 |
DE102013212626A1 (de) * | 2013-06-28 | 2014-12-31 | Robert Bosch Gmbh | Handwerkzeugmaschinenvorrichtung |
CN103737560B (zh) * | 2014-01-03 | 2015-08-19 | 浙江通达电器有限公司 | 电动工具的离合器装置 |
EP3023202A1 (de) * | 2014-11-20 | 2016-05-25 | HILTI Aktiengesellschaft | Sicherheitsverfahren und Handwerkzeugmaschine |
EP3028821A1 (de) * | 2014-12-03 | 2016-06-08 | HILTI Aktiengesellschaft | Steuerungsverfahren für eine Handwerkzeugmaschine |
JP2017001115A (ja) * | 2015-06-05 | 2017-01-05 | 株式会社マキタ | 作業工具 |
EP3170624A1 (de) * | 2015-11-17 | 2017-05-24 | HILTI Aktiengesellschaft | Steuerungsverfahren für eine werkzeugmaschine |
EP3311951A1 (de) * | 2016-10-20 | 2018-04-25 | HILTI Aktiengesellschaft | Steuerungsverfahren und staubabsaugmodul |
US11529725B2 (en) | 2017-10-20 | 2022-12-20 | Milwaukee Electric Tool Corporation | Power tool including electromagnetic clutch |
JP7144927B2 (ja) * | 2017-10-23 | 2022-09-30 | 株式会社マキタ | 回転工具 |
EP3700713B1 (de) | 2017-10-26 | 2023-07-12 | Milwaukee Electric Tool Corporation | Rückschlagsteuerungsverfahren für elektrowerkzeuge |
CN216541255U (zh) | 2018-03-16 | 2022-05-17 | 米沃奇电动工具公司 | 套丝机及套丝机组件 |
EP3756827A1 (de) * | 2019-06-27 | 2020-12-30 | Hilti Aktiengesellschaft | Verfahren zum betreiben einer werkzeugmaschine und werkzeugmaschine |
JP7278169B2 (ja) * | 2019-08-07 | 2023-05-19 | 株式会社マキタ | 打撃工具 |
US11641102B2 (en) | 2020-03-10 | 2023-05-02 | Smart Wires Inc. | Modular FACTS devices with external fault current protection within the same impedance injection module |
WO2021202968A1 (en) | 2020-04-02 | 2021-10-07 | Milwaukee Electric Tool Corporation | Power tool |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0202130A1 (de) * | 1985-05-15 | 1986-11-20 | Ingersoll-Rand Company | Ratschen-Schraubenschlüssel |
DE3707052A1 (de) * | 1987-03-05 | 1988-09-15 | Bosch Gmbh Robert | Verfahren zum unterbrechen der antriebstaetigkeit, insbesondere drehantriebstaetigkeit, einer handwerkzeugmaschine |
US5076120A (en) * | 1990-10-31 | 1991-12-31 | Lin Pi Chu | Electric wrench |
Family Cites Families (14)
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DE4112012A1 (de) * | 1991-04-12 | 1992-10-15 | Bosch Gmbh Robert | Handwerkzeugmaschine mit blockiersensor |
JP3268026B2 (ja) * | 1992-08-25 | 2002-03-25 | 株式会社マキタ | トルク感応型可変クラッチ付インパクト式回転工具 |
DE4344817C2 (de) * | 1993-12-28 | 1995-11-16 | Hilti Ag | Verfahren und Einrichtung für handgeführte Werkzeugmaschinen zur Vermeidung von Unfällen durch Werkzeugblockieren |
DE4344849A1 (de) * | 1993-12-29 | 1995-07-06 | Fein C & E | Werkzeugmaschine |
DE19534850A1 (de) * | 1995-09-20 | 1997-03-27 | Hilti Ag | Schlagunterstütztes Handbohrgerät |
DE19540718B4 (de) * | 1995-11-02 | 2007-04-05 | Robert Bosch Gmbh | Handwerkzeugmaschine mit einer von einer Detektionseinrichtung auslösbaren Blockiereinrichtung |
DE19641618A1 (de) * | 1996-10-09 | 1998-04-30 | Hilti Ag | Einrichtung und Verfahren für handgeführte Werkzeugmaschinen zur Vermeidung von Unfällen durch Werkzeugblockieren |
DE19857061C2 (de) * | 1998-12-10 | 2000-11-02 | Hilti Ag | Verfahren und Einrichtung zur Vermeidung von Unfällen bei handgeführten Werkzeugmaschinen durch Werkzeugblockieren |
DE19900882A1 (de) * | 1999-01-12 | 2000-07-13 | Bosch Gmbh Robert | Handwerkzeugmaschine |
DE19954931B4 (de) * | 1999-11-16 | 2007-08-16 | Metabowerke Gmbh | Schalteinrichtung an einem von Hand führbaren, auf ein pulsierendes Drehmoment umschaltbaren Elektrowerkzeug |
DE10033362A1 (de) * | 2000-07-08 | 2002-01-17 | Hilti Ag | Elektrohandwerkzeug mit Leerschlagabschaltung |
DE10117123A1 (de) * | 2001-04-06 | 2002-10-17 | Bosch Gmbh Robert | Handwerkzeugmaschine |
DE10219755A1 (de) * | 2002-05-02 | 2003-11-13 | Hilti Ag | Überlastschutz für eine drehende Werkzeugmaschine |
DE10353013A1 (de) * | 2003-11-13 | 2005-06-16 | Robert Bosch Gmbh | Handwerkzeugmaschine |
-
2003
- 2003-03-01 DE DE10309012A patent/DE10309012B3/de not_active Expired - Fee Related
-
2004
- 2004-02-27 JP JP2004054228A patent/JP4580663B2/ja not_active Expired - Fee Related
- 2004-03-01 US US10/790,171 patent/US6981557B2/en not_active Expired - Lifetime
- 2004-03-01 EP EP04100792A patent/EP1452278B1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0202130A1 (de) * | 1985-05-15 | 1986-11-20 | Ingersoll-Rand Company | Ratschen-Schraubenschlüssel |
DE3707052A1 (de) * | 1987-03-05 | 1988-09-15 | Bosch Gmbh Robert | Verfahren zum unterbrechen der antriebstaetigkeit, insbesondere drehantriebstaetigkeit, einer handwerkzeugmaschine |
US5076120A (en) * | 1990-10-31 | 1991-12-31 | Lin Pi Chu | Electric wrench |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2407528A (en) * | 2003-10-07 | 2005-05-04 | Bosch Gmbh Robert | Hand machine tool with an impact mechanism |
GB2407528B (en) * | 2003-10-07 | 2005-12-28 | Bosch Gmbh Robert | Hand machine tool with an impact mechanism and method for operating the hand machine tool |
US7708083B2 (en) | 2003-10-07 | 2010-05-04 | Robert Bosch Gmbh | Hand power tool with a percussion merchanism, and as a method of operating the hand power tool |
GB2410205A (en) * | 2004-01-22 | 2005-07-27 | Bosch Gmbh Robert | Handle with detection device |
GB2410205B (en) * | 2004-01-22 | 2006-03-22 | Bosch Gmbh Robert | Handle with detection device |
US7628219B2 (en) | 2004-01-22 | 2009-12-08 | Robert Bosch Gmbh | Handle with detecting unit |
WO2010040491A1 (de) | 2008-10-07 | 2010-04-15 | Wacker Neuson Se | Arbeitsgerät mit überholkupplung |
EP2189249A1 (de) * | 2008-11-25 | 2010-05-26 | Robert Bosch GmbH | Handwerkzeugmaschinenvorrichtung und Handwerkzeugmaschine |
US9199362B2 (en) | 2010-01-07 | 2015-12-01 | Black & Decker Inc. | Power tool having rotary input control |
US9321156B2 (en) | 2010-01-07 | 2016-04-26 | Black & Decker Inc. | Power tool having rotary input control |
US10160049B2 (en) | 2010-01-07 | 2018-12-25 | Black & Decker Inc. | Power tool having rotary input control |
US9475180B2 (en) | 2010-01-07 | 2016-10-25 | Black & Decker Inc. | Power tool having rotary input control |
US9321155B2 (en) | 2010-01-07 | 2016-04-26 | Black & Decker Inc. | Power tool having switch and rotary input control |
US9211636B2 (en) | 2010-01-07 | 2015-12-15 | Black & Decker Inc. | Power tool having rotary input control |
US9266178B2 (en) | 2010-01-07 | 2016-02-23 | Black & Decker Inc. | Power tool having rotary input control |
EP2447010A1 (de) * | 2010-10-28 | 2012-05-02 | HILTI Aktiengesellschaft | Steuerungsverfahren für eine Werkzeugmaschine und eine Werkzeugmaschine |
CN102528770A (zh) * | 2010-10-28 | 2012-07-04 | 喜利得股份公司 | 用于工具设备的控制方法和工具设备 |
US8833484B2 (en) | 2010-10-28 | 2014-09-16 | Hilti Aktiengesellschaft | Control method for a power tool and a power tool |
USD703017S1 (en) | 2011-01-07 | 2014-04-22 | Black & Decker Inc. | Screwdriver |
EP3023200A1 (de) * | 2014-11-20 | 2016-05-25 | HILTI Aktiengesellschaft | Steuerungsverfahren für einen Bohrhammer |
WO2016079108A1 (de) * | 2014-11-20 | 2016-05-26 | Hilti Aktiengesellschaft | Steuerungsverfahren für einen bohrhammer |
US10414036B2 (en) | 2014-11-20 | 2019-09-17 | Hilti Aktiengesellschaft | Control method for a hammer drill |
CN105436566A (zh) * | 2015-12-26 | 2016-03-30 | 宁波鑫晟工具有限公司 | 电钻 |
CN105436566B (zh) * | 2015-12-26 | 2017-10-13 | 宁波鑫晟工具有限公司 | 电钻 |
US10589413B2 (en) | 2016-06-20 | 2020-03-17 | Black & Decker Inc. | Power tool with anti-kickback control system |
US11192232B2 (en) | 2016-06-20 | 2021-12-07 | Black & Decker Inc. | Power tool with anti-kickback control system |
Also Published As
Publication number | Publication date |
---|---|
JP2004261957A (ja) | 2004-09-24 |
EP1452278B1 (de) | 2011-05-11 |
US20040226728A1 (en) | 2004-11-18 |
DE10309012B3 (de) | 2004-08-12 |
US6981557B2 (en) | 2006-01-03 |
JP4580663B2 (ja) | 2010-11-17 |
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