DE102012217179A1 - Electric hand tool and method for operating an electric hand tool - Google Patents

Electric hand tool and method for operating an electric hand tool

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Publication number
DE102012217179A1
DE102012217179A1 DE201210217179 DE102012217179A DE102012217179A1 DE 102012217179 A1 DE102012217179 A1 DE 102012217179A1 DE 201210217179 DE201210217179 DE 201210217179 DE 102012217179 A DE102012217179 A DE 102012217179A DE 102012217179 A1 DE102012217179 A1 DE 102012217179A1
Authority
DE
Germany
Prior art keywords
hand tool
characterized
sensor
device
drive motor
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.)
Pending
Application number
DE201210217179
Other languages
German (de)
Inventor
Wolfgang Hirschburger
Sacha Felder
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 to DE102011086535.7 priority Critical
Priority to DE102011086535 priority
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE201210217179 priority patent/DE102012217179A1/en
Publication of DE102012217179A1 publication Critical patent/DE102012217179A1/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION 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
    • B25F5/00Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for

Abstract

In a hand tool (100) having a housing (105) in which a drive motor (180) for driving an associated tool (150) and an electrically conductively connected to the drive motor (180) power supply (190) for providing a for operating the drive motor (180) required operating voltage, a sensor device (300) is provided, which is designed to meet a predetermined criteria, an interruption of the electrically conductive connection between the power supply (190) and the drive motor (180) for a permanent decommissioning of the power tool to effect. Furthermore, the invention relates to a method for operating such an electric hand tool machine,

Description

  • State of the art
  • The present invention relates to a power tool with a housing in which a drive motor for driving an associated tool and an electrically conductively connected to the drive motor power supply are provided for providing a required operating the drive motor operating voltage.
  • From the prior art such hand tool machines are known in which the operable, for example via a manual switch, i. On and off, drive motor with the power supply is mechanically and electrically connected. In this case, a network-dependent or a network-independent power supply, such as a battery pack, may be provided.
  • In a strong mechanical action on the power tool, for example, by a blow or a fall from a certain height, the hand tool can be damaged in terms of their electrical and / or mechanical operation, which could endanger a user in a further use of a correspondingly damaged hand tool. For the purpose of reducing such hazards, both statutory and equipment manufacturers standards for ensuring sufficient mechanical stability of such a power tool, for example by means of a trial by drop tests at the manufacturer known.
  • A disadvantage of the prior art is that despite compliance with such specified standards a blow or a fall from a certain drop height can lead to damage of such a power tool, z. B. by even stronger mechanical effects than those that occur in the manufacturer-side case tests, so that a user could still be exposed to an undesirable hazard in a further use of a suitably damaged hand tool.
  • Disclosure of the invention
  • The invention relates to all hand-held or hand-held power tools that can assume potentially dangerous conditions in the loss of control by a user or user. The loss of control can be consciously or unconsciously effected or brought about.
  • For example, a power tool must continue to operate after a free fall on a defined surface (drop height 1m) and must not show any damage that could endanger the user. These conditions must be met both mechanically and electrically. This is therefore a deliberately induced loss of control of the power tool
  • If the power tool is put out of operation in a drop test according to the invention, then at least the endangerment of a user is excluded. This is especially true when the device - according to the invention - then only by a specialist and not by the user can be activated again. The hand tool can therefore only be repaired by skilled personnel after the inventive intervention in the drive train. The device should be able to be released again after evaluation of the critical product components. If components are defective, they can be replaced by qualified personnel and the safe state of the device can be restored. Accordingly, in the context of the present invention, the term "permanent shutdown" means decommissioning from the time the electrically conductive connection to the drive motor is interrupted due to a detected mechanical action or free fall or the like and a corresponding restart of the handheld power tool by skilled personnel. In particular, it should not be possible for a pure user to put the device back into operation himself. Before restarting the device by an end user, it must be ensured that the functionality of the device is checked and, if necessary, restored. This is achieved, for example, by the fact that the sensor device must be reset accordingly. This could be ensured, for example, with a corresponding data interface on the handheld power tool for importing software or a corresponding electronic signal, which is reserved for the specialist personnel.
  • An object of the invention is therefore to provide a hand tool, in which a risk to a corresponding user after damage to the power tool by a - especially deliberately induced - blow or - in particular deliberately brought about - falling from a certain height drop are at least largely prevented can.
  • This problem is solved by a hand tool with a housing in which a drive motor for driving an associated tool and an electrically conductively connected to the drive motor connecting line to provide a for operating the drive motor required operating voltage of a device-internal or device-external power supply are arranged. There is provided a sensor device which is designed to effect a fulfillment of predetermined criteria, an interruption of the electrically conductive connection between the power supply and the drive motor to a permanent decommissioning of the power tool.
  • "Decommissioning" or "putting out of service" means in the case of a switched-on electric hand tool, switching off the device by a permanent interruption of the power supply. In the case of an already switched off power tool, which has been disabled, for example, by the device on / off switch means the inventive "decommissioning" or the invention "put out of operation" a permanent interruption of the power supply regardless of the on / off switch of the device ,
  • The invention thus makes it possible to provide a handheld power tool with which a danger to a user after a mechanical action with a predetermined thickness on the handheld power tool can be reliably and reliably prevented. This is achieved, in particular, by transferring the handheld power tool according to the invention to a defined state, in particular to a defined electrical state, after detection of a critical situation.
  • Another object of the invention is to provide a hand tool machine in which a risk to a corresponding user can be at least largely prevented by an uncontrolled state of the device, for example, even in an accidental case. The detection of an uncontrolled state, in particular a free fall of the device, is a prerequisite for an actuator intervention, which either separates the power tool from the power supply or other protection mechanisms activated.
  • This problem is solved by a hand tool with a housing in which a drive motor for driving an associated tool and an electrically conductively connectable to the drive motor connecting line for providing a required for operation of the drive motor operating voltage of a device internal or device external power supply are arranged. A sensor device is provided, which is designed to deactivate the machine, in particular to de-energize it upon fulfillment of predefinable criteria for a loss of control via the handheld power tool.
  • The sensor device preferably has a sensor unit and an electronic unit assigned to the sensor unit for checking the fulfillment of the predetermined criteria. The sensor unit detects the change of physical parameters, such as the position, the speed or an acceleration of the machine tool. The electronic unit performs a comparison between the, measured with the sensor unit, each currently present physical conditions and the predetermined criteria. If a physical quantity measured in this way, such as, for example, the acceleration of the device as a whole fulfills a specifiable criterion, then the actuators become effective and can, for example, be used to ...
    ... switch off the drive of the device
    ... interrupt the electrical connection line to the drive motor of the device
    ... decelerate the tool driven by the drive motor
    ... decouple the drive train, ie disconnect the drive from the output
    ... make a reversal of the direction of rotation of the drive.
  • These measures can be done both alternatively and in meaningful combinations. For example, the engine may be actively decelerated first, and then the power may be interrupted.
  • Advantageously, for this purpose, the use of electrically commutated motors as drive motors of the respective machine tool.
  • By such a combination of a sensor unit with an associated electronic unit advantageously the criteria for decommissioning the power tool can be easily adapted to changing requirements, for example by replacing the electronics unit or advantageous only by reprogramming the electronic unit.
  • The sensor device according to the invention makes it possible to bring about a clear definition of the electrical device state depending on the presence of predefinable criteria.
  • For this purpose, the sensor unit has, for example, a gravitational sensor or an, in particular multiaxial, acceleration sensor or else a pressure sensor, in particular an air pressure sensor.
  • By appropriate evaluation of the sensor signals, for example by the combination of the acceleration, speed and displacement signals in (all) three axes, it is advantageously possible to identify uncontrolled states of the power tool.
  • In the example of the (free) case of the power tool, this can for example be detected by a pressure sensor, in particular an air pressure sensor such as a barometric pressure sensor, since these sensors have a resolution of a few centimeters height difference and identify a case very quickly on the change in ambient air pressure can.
  • Preferably, the sensor unit is associated with an additional power supply.
  • Advantageously, it can be ensured that even with a mechanical action with a predetermined strength on the hand tool machine in an off state, a registration of the mechanical action and, if appropriate, a decommissioning of the power tool takes place.
  • The predetermined criteria are preferably device-specific.
  • Thus, a sensor device can be provided which can be used in a variety of different hand tool machines, which can be provided for many different purposes and designed accordingly different, in particular with regard to stability and protection of their functionally relevant mechanical and electronic components.
  • The sensor device may be designed to determine the fulfillment of the predetermined criteria when detecting a shock against the housing. It is preferred that the beat has a determinable by the sensor device, predetermined impact strength. In order to detect such a shock against the housing, an acceleration sensor, in particular a micromechanical acceleration sensor and in particular a three-axis micromechanical acceleration sensor in the form of an ego, in particular a MEMS, can be used in an advantageous manner.
  • Shocks against the housing, be it by dropping objects on the hand tool or striking the hand tool against surrounding objects, are the most common causes of damage to the mechanics and / or electronics of the power tool. Therefore, the criteria for decommissioning to be performed by the sensor device are preferably directed to detection and evaluation of such actions on the handheld power tool.
  • According to an advantageous embodiment, the sensor device is adapted to fulfill the given criteria in case of detection of a fall, i. to determine a fall of the power tool. Advantageously, the sensor device is designed in particular to fulfill the given criteria when detecting a fall, i. a fall of the power tool over a predetermined height difference to determine. Advantageously, the connection between the motor and the power source is already interrupted during the fall. At the time of impact of the power tool on the ground, the engine is advantageously already stopped. For this purpose, for example, in the detection of the triggering case, a corresponding energization can be given to the motor, which decelerates it first, before the electrical connection line is interrupted. Advantageously, the working means of the power tool has already come to a standstill or at least braked when the power tool hits the working means on the ground. This significantly reduces the risk of injury emanating from the falling power tool.
  • The sensor device may be designed to determine the fulfillment of the predetermined criteria upon detection of a fall of the housing. It is preferred that the falling has a determinable by the sensor device, predetermined height of fall or acceleration value. For detecting such a fall of the housing, a gravitational sensor, in particular a micromechanical gravitational sensor in the form of an IC (or MEMS) can be used in an advantageous manner.
  • Since a fall of the power tool as described above can lead to a detrimental damage to the power tool, it is advantageous if the criteria for decommissioning the power tool on a fall from a preferably device-specific, predetermined fall height or a corresponding height difference are oriented.
  • Preferably, the sensor device is at least resettable to allow a restoration of an electrically conductive connection between the power supply and the drive motor for the re-commissioning of the power tool.
  • As a result, the effort for restarting the handheld power tool after a potential damage and subsequent automatic shutdown can advantageously be kept relatively low.
  • Thus, provision of a sensor unit having a simple structure and hence high freedom of maintenance and low cost can be enabled.
  • Advantageously, the sensors are designed as micromechanical sensors, such as MEMS (Microelectromechanical Systems). This allows a space and power-saving installation in the machine tool.
  • The sensor device is preferably fixed device-mounted in the housing of the power tool.
  • As a result, in the case of a strong mechanical action on the handheld power tool, at least the intended functionality of the sensor device can generally still be ensured.
  • Brief description of the drawings
  • The invention is explained in more detail in the following description with reference to an embodiment shown in the drawing.
  • It shows:
  • 1 a schematic view of a hand tool according to an exemplary embodiment.
  • Description of a possible embodiment
  • 1 shows a hand tool 100 that a housing 105 with a handle 115 having. According to one embodiment, the hand tool is 100 for mains-independent power supply of an associated drive motor 180 mechanically and electrically with a power supply 190 connectable, which is illustratively formed in the manner of a battery pack and to provide a for operating the drive motor 180 required operating voltage is used.
  • In 1 is the hand tool machine 100 exemplified as a cordless drill driver, the power supply 190 Illustratively realized by a battery pack. It should be noted, however, that the present invention is not limited to cordless drills, but rather may be used with different, but not limited to, cordless power tool hand tools, such as a cordless screwdriver, a cordless hammer drill , a cordless angle grinder, a cordless saw. In particular, a cordless jigsaw or the like.
  • In addition, it is explicitly pointed out that the present invention is not limited to mains-operated hand tool machines, in particular battery-operated hand tool machines, but rather also in network-dependent operable hand tool machines, i. Hand tool with external power supply, application can find.
  • Rather, the invention relates to all hand-held or hand-held power tools that can assume potentially dangerous conditions in the loss of control by a user or user.
  • In the case 105 are one of the battery pack 190 powered, electric drive motor 180 and a gearbox 200 arranged. The drive motor 180 is about the gearbox 200 with a drive shaft 120 , z. B. a drive spindle connected. The drive motor 180 is illustrative in a motor housing 185 arranged and the gearbox 200 in a gearbox 205 , where the gearbox 205 and the motor housing 185 exemplary in the housing 105 are arranged.
  • The drive motor 180 is z. B. via a handset 195 operable, ie on and off, and may be any type of engine, for. As an electronically commutated motor or a DC motor. Preferably, the drive motor 180 so electronically controlled or regulated that both a reversing operation, as well as specifications with respect to a desired rotational speed can be realized. The mode of operation and the design of a suitable drive motor are sufficiently known from the prior art, so that a detailed description of the description is omitted here for the purpose of conciseness of the description.
  • The gear 200 is according to one embodiment with a different Gangbzw. Planetary stages trained planetary gear, optionally a torque clutch 199 assigned. The gear 200 is via an associated actuator 230 switchable at least between a first and a second gear. During operation of the power tool 100 becomes the planetary gear 200 from the drive motor 180 driven in rotation. It should be noted, however, that other transmissions may find application.
  • The transmission 200 is a tool holder 140 assigned, the example of a chuck 145 having.
  • This tool holder 140 serves to accommodate a tool 150 and can to those of the drive motor 180 over the transmission 200 drivable drive shaft 120 be formed or tower-connected with this.
  • According to one embodiment, the handheld power tool has 100 one in the case 105 fixed device mounted sensor device 300 on, which is adapted to a mechanical action on the power tool 100 , for example, by a blow to the power tool 100 and / or by a fall of the power tool 100 to detect. In addition, the sensor device 300 formed by interrupting the electrically conductive connection 305 between the power supply 190 and the drive motor 180 to cause a permanent shutdown of the power tool, if predetermined by the detected shock or fall, device-specific criteria are met.
  • In the case of a mains-powered device, the power supply would be external and would be transmitted to the device via an appropriate power cable. For these devices, according to the invention, the electrical connection to the mains cable would be interrupted by the sensor device inside the device.
  • By way of example, a fulfillment of the predetermined criteria z. B. upon detection of a shock against the housing 105 from the sensor device 300 be determined if the blow z. B. one of the sensor device 300 determinable, given impact strength.
  • In addition or alternatively, the sensor device 300 be adapted to the fulfillment of the predetermined criteria in a detection of a fall of the power tool 100 to determine over a given height difference. According to different, in particular legal standards, the predetermined height difference is at least 1m and in particular more than 2 m. As an alternative to the detection of a shock, which necessarily results from a case, for example, the case itself can also be detected and the device can be switched off or electrically decoupled, in particular, before it is hit. For this purpose, according to the invention gravitational sensors or acceleration sensors or even barometric pressure sensors are used, which make it possible to detect a case, in particular a free fall of the power tool in the gravitational field. These sensors are advantageously designed as MEMS and in the sensor device 300 integrated.
  • If such an incident, such as a blow to the device, or a strike of the device on a ground or the free fall of the device based on the predetermined criteria detected by the sensor device, so provides an actuators, such as a switch for the interruption of Power supply of the drive motor of the power tool.
  • Alternatively or in addition to this, the actuators can, for example, also ...
    ... switch off the drive of the device
    ... decelerate the tool driven by the drive motor
    ... decouple the drive train, ie disconnect the drive from the output
    ... make a reversal of the direction of rotation of the drive.
  • If such an incident, such as a blow to the device, or a strike of the device on a ground or the free fall of the device based on the predetermined criteria detected by the sensor device, the drive motor can advantageously be actively slowed down first before the electrical connection line between the drive motor and power source is interrupted. In particular, it is possible in such a case to energize the motor so that it actively braked and thus comes to a standstill as quickly as possible.
  • In an advantageous manner, electrically or electronically commutated motors offer themselves as drive motors for this purpose.
  • After decommissioning by the sensor device 300 is the hand tool machine 100 According to one embodiment by a corresponding user no longer available for further operation and preferably without a review and, where appropriate, a repair to remedy damage incurred, z. B. by a service technician or authorized personnel, no longer usable. Accordingly, in the context of the present invention, the term "permanent decommissioning" means decommissioning from the time of interruption of the electrically conductive connection to the drive motor 180 due to a detected mechanical action or a free fall and a corresponding re-commissioning of the power tool 100 by specialized personnel. In particular, it should not be possible for a pure user to put the device back into operation himself. Before restarting the device by an end user, it must be ensured that the functionality of the device is checked and, if necessary, restored.
  • To enable such a restart of the power tool 100 after a previous decommissioning, the sensor device 300 be formed exchangeable, z. B. by a corresponding service technician or authorized personnel. However, it is preferred that the sensor device 300 is at least resettable by the service technician or the authorized personnel to restore an electrically conductive connection between the power supply 190 and the drive motor 180 for restarting or restarting the power tool 100 to enable.
  • According to one embodiment, the sensor device 300 a sensor unit 301 and an associated electronics unit 302 to check the given criteria. This is preferably designed in response to an actuation of the manual switch 195 and one of the sensor unit 301 signal provided an electrical conductive connection between the power supply 190 produce or interrupt or permanently interrupt. The sensor device 300 allows it, the electrical connection line 305 depending on the presence of special parameters to interrupt or so close and so an electrically-suffering connection between the power supply 190 and the drive motor 180 to interrupt or produce.
  • The sensor unit 301 has z. B. on a gravitational sensor. It should be noted, however, that the present invention is not limited to gravitational sensors and other sensors may also be used, for example, single or multi-axis acceleration sensors or pressure sensors. By appropriate evaluation of the sensor signals, for example by the combination of the acceleration, speed and displacement signals in (all) three axes, it is advantageously possible to identify uncontrolled states of the power tool.
  • Preferably, the sensor unit 301 an additional power supply 303 , For example, a battery pack or batteries or even a high-capacitance capacitor assigned. If the power supply 190 is designed in the manner of a battery pack, this can preferably at the same time with the battery pack 190 or be rechargeable from this.

Claims (20)

  1. Hand tool machine ( 100 ) with a housing ( 105 ), in which a drive motor ( 180 ) for driving an associated tool ( 150 ) and one, with the drive motor ( 180 ) electrically conductive connection ( 305 ) are provided for providing an operating voltage required for operation of the drive motor of a device-internal or device-external power supply, characterized in that a sensor device ( 300 ) is provided, which is adapted, upon fulfillment of predetermined criteria, an interruption of the electrically conductive connection ( 305 ) between the power supply and the drive motor to a permanent decommissioning of the power tool to effect.
  2. Hand tool according to claim 1, characterized in that the sensor device ( 300 ) a sensor unit ( 301 ) and one of the sensor unit ( 301 ) associated electronic unit ( 302 ) to verify compliance with the specified criteria.
  3. Powered hand tool according to claim 2, characterized in that the sensor unit ( 301 ) has an acceleration sensor, in particular a multi-axis acceleration sensor.
  4. Powered hand tool according to claim 2, characterized in that the sensor unit ( 301 ) has a gravitational sensor.
  5. Powered hand tool according to claim 2, characterized in that the sensor unit ( 301 ) has a pressure sensor, in particular a barometric pressure sensor.
  6. Powered hand tool according to one of claims 3 to 5, characterized in that the sensor is a micromechanical sensor, in particular a MEMS.
  7. Hand tool according to one of claims 2 to 5, characterized in that the sensor unit ( 301 ) an additional power supply ( 303 ) assigned.
  8. Hand tool according to one of the preceding claims, characterized in that the predetermined criteria are device-specific, in particular device-specific are predetermined.
  9. Hand tool according to one of the preceding claims, characterized in that the sensor device ( 300 ) is adapted to the fulfillment of the predetermined criteria in a detection of a blow against the housing ( 105 ).
  10. Hand tool according to claim 9, characterized in that the blow one of the Sensor device ( 300 ) has determinable, predetermined impact strength.
  11. Hand tool according to one of the preceding claims, characterized in that the sensor device ( 300 ) is adapted to fulfill the predetermined criteria when detecting a case of the housing ( 105 ).
  12. Hand tool according to one of the preceding claims and in particular according to claim 11, characterized in that the sensor device ( 300 ) is adapted to the fulfillment of the predetermined criteria in a detection of a fall of the power tool ( 100 ) to determine over a given height difference.
  13. Hand tool according to one of the preceding claims, characterized in that the sensor device ( 300 ) is at least resettable in order to restore an electrically conductive connection between a power supply ( 190 ) and the drive motor ( 180 ) for restarting the power tool ( 100 ).
  14. Hand tool according to one of the preceding claims, characterized in that the sensor device ( 300 ) in the housing ( 105 ) is fixed to the device.
  15. A method of operating an electric hand tool, comprising at least the following step
  16. Automatic permanent decommissioning of the electric hand tool by a provided in the machine tool sensor device in a fulfillment of predetermined and detected by the sensor device criteria.
  17. A method according to claim 15, characterized in that the hand tool machine by a mediated by the sensor device interruption of an electrically conductive connection line between a device internal or device external power supply to provide a required for operation of a drive motor of the power tool operating voltage and the drive motor is permanently out of service.
  18. A method according to claim 15 or 16, characterized in that the sensor device sets the machine tool in a free fall from a height of 2m out of operation.
  19. A method according to claim 15 or 16, characterized in that the sensor device sets the machine tool in a free fall from a height of 1m out of operation.
  20. Method according to one of the preceding claims 15 to 18, characterized in that the sensor device sets the machine tool in free fall out of operation.
DE201210217179 2011-11-17 2012-09-24 Electric hand tool and method for operating an electric hand tool Pending DE102012217179A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE102011086535.7 2011-11-17
DE102011086535 2011-11-17
DE201210217179 DE102012217179A1 (en) 2011-11-17 2012-09-24 Electric hand tool and method for operating an electric hand tool

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201210217179 DE102012217179A1 (en) 2011-11-17 2012-09-24 Electric hand tool and method for operating an electric hand tool
PCT/EP2012/071726 WO2013072201A2 (en) 2011-11-17 2012-11-02 Electrical handheld tool machine and method for operating an electrical handheld tool machine

Publications (1)

Publication Number Publication Date
DE102012217179A1 true DE102012217179A1 (en) 2013-05-23

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WO (1) WO2013072201A2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015004167A1 (en) * 2013-07-10 2015-01-15 Gustav Klauke Gmbh Hand tool and hand expansion device
DE202015104371U1 (en) 2015-08-18 2015-09-02 Kompernaß Handelsgesellschaft mbH Adapter for a power tool
WO2017041935A1 (en) * 2015-09-07 2017-03-16 Robert Bosch Gmbh Hand-held power tool device
AT514452A3 (en) * 2013-06-28 2017-05-15 Bosch Gmbh Robert Hand machine tool device
AT514449A3 (en) * 2013-06-28 2017-05-15 Bosch Gmbh Robert Hand machine tool device
WO2017084892A1 (en) * 2015-11-19 2017-05-26 Robert Bosch Gmbh Hand-held electric power tool, operating method

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
EP0771619B2 (en) * 1995-11-02 2004-11-10 Robert Bosch Gmbh Process for interrupting the operation of a hand tool and hand tool therefore
DE102004046000B4 (en) * 2004-09-17 2016-07-21 C. & E. Fein Gmbh Power tool with a position and orientation system
DE102007048052A1 (en) * 2007-10-05 2009-04-09 Daubner & Stommel GbR Bau-Werk-Planung (vertretungsberechtigter Gesellschafter: Matthias Stommel, 27777 Ganderkesee) Motor-driven hand machine tool i.e. motor chain saw, operating method, involves eliminating and/or reducing working movements of cutting tool to safe measure depending on detected machine movements of hand machine tool
JP5214423B2 (en) * 2008-12-10 2013-06-19 株式会社マキタ Electric tool
DE102009045942A1 (en) * 2009-10-23 2011-04-28 Robert Bosch Gmbh Hand held power tool
DE102009046789A1 (en) * 2009-11-17 2011-05-19 Robert Bosch Gmbh Hand machine tool device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT514452A3 (en) * 2013-06-28 2017-05-15 Bosch Gmbh Robert Hand machine tool device
AT514449A3 (en) * 2013-06-28 2017-05-15 Bosch Gmbh Robert Hand machine tool device
WO2015004167A1 (en) * 2013-07-10 2015-01-15 Gustav Klauke Gmbh Hand tool and hand expansion device
US9808852B2 (en) 2013-07-10 2017-11-07 Gustav Klauke Gbmh Hand expansion device
DE202015104371U1 (en) 2015-08-18 2015-09-02 Kompernaß Handelsgesellschaft mbH Adapter for a power tool
WO2017041935A1 (en) * 2015-09-07 2017-03-16 Robert Bosch Gmbh Hand-held power tool device
WO2017084892A1 (en) * 2015-11-19 2017-05-26 Robert Bosch Gmbh Hand-held electric power tool, operating method

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WO2013072201A3 (en) 2013-07-18
WO2013072201A2 (en) 2013-05-23

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