EP1452278A1 - Control method of a percussion power drill - Google Patents
Control method of a percussion power drill 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
Die Erfindung bezeichnet ein Steuerverfahren einer zumindest teilweise axial schlagenden und drehenden Elektrohandwerkzeugmaschine wie einen Kombihammer oder einen Meisselhammer.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.
Nach der DE3707052 weist eine axial schlagende und drehende Elektrohandwerkzeugmaschine im Kraftfluss zwischen einem Elektromotor und einer Werkzeugaufnahme eine elektromagnetische Sicherheitskupplung auf, welche mit einem Mikrocontroller steuerbar verbunden ist, der mit Sensoren verbunden ist und deren Steuerverfahren bei einer Werkzeugblockade den Kraftfluss auftrennt.According to 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.
Zudem weist nach der US5076120 ein Elektroschlagschrauber einen schwachen Elektromotor, ein Getriebe und im Kraftfluss hinter diesem eine elektromagnetische Kupplung auf, welche Tangentialschläge auslöst, indem diese beim frei hochlaufenden bzw. vom Werkstück abgebremsten Elektromotor drehzahlabhängig ein- und ausgeschaltet wird.In addition, according to US5076120, 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.
Die Aufgabe besteht in der Realisierung einer zumindest teilweise axial schlagenden und drehenden Elektrohandwerkzeugmaschine mit einem Steuerverfahren zur Erzeugung von Tangentialschlägen.The task is to realize an at least partially axially striking and rotating electric hand machine tool with a control method for generating Tangentialschlägen.
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 wird bei einem Steuerverfahren für eine axial schlagende und drehende Elektrohandwerkzeugmaschine, bei welcher im Kraftfluss zwischen einem Elektromotor und einer Werkzeugaufnahme eine elektromagnetische Kupplung angeordnet ist, welche mit einem Rechenmittel steuerbar verbunden ist, welches mit Sensoren verbunden ist, in zumindest einem vom Rechenmittel gesteuerten Verfahrensschritt die Sicherheitskupplung wiederholt alternierend geöffnet und geschlossen.In essence, 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.
Durch die wiederholt alternierend geöffnete und geschlossene Sicherheitskupplung werden durch das Massenträgheitsmoment des Elektromotors energetisch gespeiste Tangentialschläge gegen den Bearbeitungswiderstand eines mit der Werkzeugaufnahme verbundenen Werkzeuges erzeugt.Due to the repeated alternating opening and closing of the safety clutch energetically fed by the moment of inertia of the electric motor Tangential impacts against the machining resistance of one with the tool holder connected tool generated.
Vorteilhaft wird in diesem Verfahrensschritt die Kupplung mit einer Frequenz im Bereich von 20 Hz bis 100 Hz alternierend geöffnet und geschlossen, wodurch die Frequenz der Tangentialschläge wesentlich grösser als die Eigenfrequenz der im Hand-Arm-System geführten Elektrohandwerkzeugmaschine ist.In this method step, 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.
Vorteilhaft wird dieser Verfahrensschritt bei einer vom Rechenmittel über den Sensor detektierten, weiter vorteilhaft bezüglich einer Verdrehung des Gehäuses oder den Schlupf der Kupplung, drohenden Werkzeugblockade initiiert, wodurch zumindest in einigen Fällen durch die Tangentialschläge die Werkzeugblockade abgewendet werden kann.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.
Vorteilhaft ist der Sensor als Metalldetektor bspw. als Kriechstromdetektor, als kapazitiver oder induktiver Näherungsschalter usw. ausgebildet, wodurch insbesondere beim Schlagbohren in Beton bei Armierungseisentreffern über die initiierten Tangentialschläge die Wahrscheinlichkeit einer Werkzeugblockade verminderbar ist.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.
Vorteilhaft ist das Rechenmittel mit einem manuell betätigbaren Schalter, bspw. einen Taster, verbunden, über welchen dieser Verfahrensschritt manuell initiierbar ist, wodurch diese Tangentialschläge manuell vorwählbar sind.The computing means with a manually operated switch, for example one, is advantageous Pushbuttons, via which this process step can be initiated manually, thereby these tangential beats can be preselected manually.
Im Wesentlichen ist eine zumindest teilweise axial schlagende und drehende Elektrohandwerkzeugmaschine, bei welcher im Kraftfluss zwischen einem Elektromotor und einer Werkzeugaufnahme eine elektromagnetische Kupplung angeordnet ist, welche mit einem, mit Sensoren verbundenen, Rechenmittel steuerbar verbunden ist, nach einem derartigen Steuerverfahren vom Rechenmittel steuerbar.Essentially, it is at least partially 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 is connected to a computing means connected to sensors in a controllable manner, according to a such control methods can be controlled by the computing means.
Bereits mit einer elektromagnetischen Kupplung, vorteilhaft in Form einer Sicherheitskupplung ausgebildeten, vor Werkzeugblockaden geschützte Elektrohandwerkzeugmaschinen sind mit einem derartigen Steuerverfahren dahingehend erweiterbar, dass die Wahrscheinlichkeit einer Werkzeugblockade aktiv verminderbar ist. Dazu sind im, vorteilhaft in Form eines Mikrocontrollers ausgebildeten, Rechenmittel entsprechende Softwarealgorithmen implementiert.Already with an electromagnetic clutch, advantageously in the form of a Safety coupling trained, protected from tool blockages Electric hand machine tools are capable of such a control method expandable so that the probability of a tool blockage can be actively reduced. For this purpose, computing means, advantageously in the form of a microcontroller, are used appropriate software algorithms implemented.
Die Erfindung wird bezüglich eines vorteilhaften Ausführungsbeispiels näher erläutert mit:
Nach Fig. 1 weist eine axial schlagende und drehende Elektrohandwerkzeugmaschine 1 in
Form eines Bohrhammers im Kraftfluss zwischen einem Elektromotor 2 und einer
Werkzeugaufnahme 3 eine als Sicherheitskupplung ausgebildete elektromagnetische
Kupplung 4 auf, welche mit einem als Mikrocontroller ausgebildeten Rechenmittel 5
steuerbar verbunden ist, welches mit Sensoren 6a, 6b, 6c verbunden ist. Der Sensor 6a ist
ein im Gehäuse 7 der Elektrohandwerkzeugmaschine 1 angeordneter
Beschleunigungssensor. Der Sensor 6b ist ein in der Kupplung 4 angeordneter
Schlupfsensor. Der Sensor 6c ist ein in der Werkzeugaufnahme 3 angeordneter
Kriechstromsensor. Ein manuell betätigbarer Schalter 8 ist aussen am Gehäuse 7
angeordnet und mit dem Rechenmittel 5 steuerbar verbunden.1 has an axially striking and rotating electric hand machine tool 1 in
Shape of a hammer drill in the power flow between an
Nach Fig. 2 wird bei einem vom Rechenmittel 5 zum Zeitpunkt t0 initiierten Verfahrensschritt die Kupplung 4 wiederholt alternierend geöffnet und geschlossen, wobei die Periodendauer, in welcher die elektromagnetische Kupplung 4 alternierend geöffnet und geschlossen wird, 20 ms beträgt, was einer Frequenz von 50 Hz entspricht.2, 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.
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10309012 | 2003-03-01 | ||
DE10309012A DE10309012B3 (en) | 2003-03-01 | 2003-03-01 | Control method for hand-held electric hammer drill using microcontroller for repetitive opening and closing of clutch between electric motor and tool chuck |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1452278A1 true EP1452278A1 (en) | 2004-09-01 |
EP1452278B1 EP1452278B1 (en) | 2011-05-11 |
Family
ID=32695228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04100792A Expired - Lifetime EP1452278B1 (en) | 2003-03-01 | 2004-03-01 | Control method of a percussion power drill |
Country Status (4)
Country | Link |
---|---|
US (1) | US6981557B2 (en) |
EP (1) | EP1452278B1 (en) |
JP (1) | JP4580663B2 (en) |
DE (1) | DE10309012B3 (en) |
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 (en) | 2008-10-07 | 2010-04-15 | Wacker Neuson Se | Implement having an overrunning clutch |
EP2189249A1 (en) * | 2008-11-25 | 2010-05-26 | Robert Bosch GmbH | Handheld machine-tool device and handheld machine-tool |
EP2447010A1 (en) * | 2010-10-28 | 2012-05-02 | HILTI Aktiengesellschaft | Control method for a machine tool and machine tool |
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 (en) * | 2015-12-26 | 2016-03-30 | 宁波鑫晟工具有限公司 | Electric drill |
EP3023200A1 (en) * | 2014-11-20 | 2016-05-25 | HILTI Aktiengesellschaft | Control method for a hammer drill |
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 |
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DE10316844A1 (en) * | 2003-04-11 | 2004-11-04 | Hilti Ag | Control of an electric hand machine tool |
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 (en) * | 2003-11-13 | 2005-06-16 | Robert Bosch Gmbh | Hand tool |
US7182148B1 (en) * | 2004-08-11 | 2007-02-27 | 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 (en) * | 2005-02-24 | 2011-08-10 | マックス株式会社 | Drill tool |
DE102005013120A1 (en) * | 2005-03-18 | 2006-09-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Drill with motor driven chuck and sensor system for detecting metals near the drill bit tip |
DE102005037254A1 (en) * | 2005-08-08 | 2007-02-15 | Robert Bosch Gmbh | Electric machine tool and overload protection device |
JP5041575B2 (en) * | 2006-03-07 | 2012-10-03 | 日立工機株式会社 | Impact tool |
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 (en) * | 2008-05-08 | 2010-01-12 | Atlas Copco Tools Ab | Power tool for tightening screw joints and decoupling |
KR100918174B1 (en) * | 2008-07-16 | 2009-09-17 | 주식회사 만도 | Floating piston valve of amplitude selective shock absorber |
JP5537055B2 (en) * | 2009-03-24 | 2014-07-02 | 株式会社マキタ | Electric tool |
JP5537122B2 (en) * | 2009-11-02 | 2014-07-02 | 株式会社マキタ | Electric tool |
DE102009046789A1 (en) * | 2009-11-17 | 2011-05-19 | Robert Bosch Gmbh | Hand machine tool device |
CN102695588A (en) * | 2009-12-17 | 2012-09-26 | 日东精工株式会社 | Threaded fastener tightening and loosening device |
EP2521832B1 (en) | 2010-01-07 | 2020-03-25 | Black & Decker, Inc. | Power screwdriver having rotary input control |
DE102012208913A1 (en) * | 2012-05-25 | 2013-11-28 | Robert Bosch Gmbh | Percussion unit |
DE102012208855A1 (en) * | 2012-05-25 | 2013-11-28 | Robert Bosch Gmbh | Hand tool |
DE112013004324T5 (en) * | 2012-09-03 | 2015-06-03 | Makita Corporation | hammer tool |
DE102013212626B4 (en) | 2013-06-28 | 2024-08-08 | Robert Bosch Gmbh | Hand tool machine device |
CN103737560B (en) * | 2014-01-03 | 2015-08-19 | 浙江通达电器有限公司 | The clutch apparatus of electric tool |
EP3023202A1 (en) * | 2014-11-20 | 2016-05-25 | HILTI Aktiengesellschaft | Security method and handheld machine tool |
EP3028821A1 (en) * | 2014-12-03 | 2016-06-08 | HILTI Aktiengesellschaft | Control method for a hand-held machine tool |
JP2017001115A (en) * | 2015-06-05 | 2017-01-05 | 株式会社マキタ | Working tool |
EP3170624A1 (en) * | 2015-11-17 | 2017-05-24 | HILTI Aktiengesellschaft | Control method for a hand-held machine tool |
EP3311951A1 (en) * | 2016-10-20 | 2018-04-25 | HILTI Aktiengesellschaft | Control method and dust extraction module |
US11529725B2 (en) | 2017-10-20 | 2022-12-20 | Milwaukee Electric Tool Corporation | Power tool including electromagnetic clutch |
JP7144927B2 (en) * | 2017-10-23 | 2022-09-30 | 株式会社マキタ | rotary tool |
EP3700713B1 (en) | 2017-10-26 | 2023-07-12 | Milwaukee Electric Tool Corporation | Kickback control methods for power tools |
US11077509B2 (en) | 2018-03-16 | 2021-08-03 | Milwaukee Electric Tool Corporation | Pipe threader |
EP3756827A1 (en) * | 2019-06-27 | 2020-12-30 | Hilti Aktiengesellschaft | Machine tool and method for operating a machine tool |
JP7278169B2 (en) * | 2019-08-07 | 2023-05-19 | 株式会社マキタ | impact tool |
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 |
CN219337617U (en) | 2020-04-02 | 2023-07-14 | 米沃奇电动工具公司 | Rotary hammer |
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DE3707052A1 (en) * | 1987-03-05 | 1988-09-15 | Bosch Gmbh Robert | Method for interrupting the drive activity, in particular rotary-drive activity, of a powered hand tool |
US5076120A (en) * | 1990-10-31 | 1991-12-31 | Lin Pi Chu | Electric wrench |
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DE19540718B4 (en) * | 1995-11-02 | 2007-04-05 | Robert Bosch Gmbh | Hand tool with a triggerable by a detection device blocking device |
DE19641618A1 (en) * | 1996-10-09 | 1998-04-30 | Hilti Ag | Accident prevention device for hand-controlled machine tools |
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DE19900882A1 (en) * | 1999-01-12 | 2000-07-13 | Bosch Gmbh Robert | Hand-held machine tool, especially drill or angle grinder, has locking and blocking elements brought into engagement axially in direction of blocking element rotation axis in uncontrolled state |
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DE10219755A1 (en) * | 2002-05-02 | 2003-11-13 | Hilti Ag | Overload protection for a rotating machine tool |
DE10353013A1 (en) * | 2003-11-13 | 2005-06-16 | Robert Bosch Gmbh | Hand tool |
-
2003
- 2003-03-01 DE DE10309012A patent/DE10309012B3/en not_active Expired - Fee Related
-
2004
- 2004-02-27 JP JP2004054228A patent/JP4580663B2/en not_active Expired - Fee Related
- 2004-03-01 EP EP04100792A patent/EP1452278B1/en not_active Expired - Lifetime
- 2004-03-01 US US10/790,171 patent/US6981557B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0202130A1 (en) * | 1985-05-15 | 1986-11-20 | Ingersoll-Rand Company | Ratchet wrench |
DE3707052A1 (en) * | 1987-03-05 | 1988-09-15 | Bosch Gmbh Robert | Method for interrupting the drive activity, in particular rotary-drive activity, of a powered hand tool |
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 (en) | 2008-10-07 | 2010-04-15 | Wacker Neuson Se | Implement having an overrunning clutch |
EP2189249A1 (en) * | 2008-11-25 | 2010-05-26 | Robert Bosch GmbH | Handheld machine-tool device and handheld machine-tool |
US9199362B2 (en) | 2010-01-07 | 2015-12-01 | Black & Decker Inc. | Power tool having rotary input control |
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Also Published As
Publication number | Publication date |
---|---|
DE10309012B3 (en) | 2004-08-12 |
JP4580663B2 (en) | 2010-11-17 |
EP1452278B1 (en) | 2011-05-11 |
US6981557B2 (en) | 2006-01-03 |
JP2004261957A (en) | 2004-09-24 |
US20040226728A1 (en) | 2004-11-18 |
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