EP1466702A1 - Contrôle d'un outil électrique - Google Patents

Contrôle d'un outil électrique Download PDF

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Publication number
EP1466702A1
EP1466702A1 EP04101428A EP04101428A EP1466702A1 EP 1466702 A1 EP1466702 A1 EP 1466702A1 EP 04101428 A EP04101428 A EP 04101428A EP 04101428 A EP04101428 A EP 04101428A EP 1466702 A1 EP1466702 A1 EP 1466702A1
Authority
EP
European Patent Office
Prior art keywords
control
force
control method
tool
hand tool
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
EP04101428A
Other languages
German (de)
English (en)
Other versions
EP1466702B1 (fr
Inventor
Harald Schmitzer
Hans Böni
Carlos Oliveira
Roland Schaer
Christoph Würsch
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 EP1466702A1 publication Critical patent/EP1466702A1/fr
Application granted granted Critical
Publication of EP1466702B1 publication Critical patent/EP1466702B1/fr
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
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D16/006—Mode changers; Mechanisms connected thereto
    • 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
    • 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
    • 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
    • B25D2250/201—Regulation means for speed, e.g. drilling or percussion speed
    • 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
    • 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
    • B25D2250/255—Switches
    • B25D2250/261—Means for locking an operative switch on

Definitions

  • the invention refers to a controller for an at least partially rotating Electric hand tool machine like a combi hammer.
  • the movement of the index finger when operating the workpiece side of the handle arranged pressure switch for activating the connection of the electric motor to Power source is with the for safe guidance of a rotating Electric hand tool by the user's hand necessary gripping reflex to the Handle intuitively correlates and thus represents the willingness of the user to activate the Electric motor safe.
  • the user must both the contact pressure for fine work the electric hand tool machine to the ground as well as his finger position on Carefully control the controller switch by motor. This requires on the one hand motor Skill, on the other hand also a certain degree of concentration, which in particular in monotonous activities in the construction industry is not necessarily constantly given.
  • DE19534850 has a rotating electric hand tool a Regulator switch, which when actuated the circuit via the electric motor for Power supply closes and activates a control electronics of the electric motor, which in Depending on a force measured on an internal sensor, the speed of the Electric motor to a maximum reaction torque controls.
  • a Regulator switch which when actuated the circuit via the electric motor for Power supply closes and activates a control electronics of the electric motor, which in Depending on a force measured on an internal sensor, the speed of the Electric motor to a maximum reaction torque controls.
  • the index finger Regulator switch is activated after activation with the index finger Regulator switch the setpoint speed of the control of the electric motor in response to a, on a force sensor accessible with the thumb, force consciously changed. Intuitively given by the handling of the electric hand tool machine itself Control commands are not taken into account by such regulations.
  • DE4401664 has a rotating and beating electric hand tool a different depending on the selected operating mode control of the electric motor.
  • W00219048 has a rotating and beating electric hand tool a depending on the selected operating mode optimal control of the operating condition with respect Speed, impact frequency and contact pressure by many parameters sensed by the sensor, including the forces acting on the electric hand tool machine, in an adaptive Process analysis are evaluated. This optimization takes place exclusively in the Maximization of drilling progress.
  • DE10034359 has a beating electric hand tool for control the impact amplitude on a contact force sensor.
  • DE4306524 has a rotating electric power tool on a contact pressure sensor, which via a Regulation controls the speed or torque intuitively pressure-dependent.
  • the after the Activation via a politicianan horrid carried out automatic activation can be a for lead the user unexpected twisting of the electric hand tool.
  • color mixing can sinking, Borehole lengthen a pressure-dependent control undesirable.
  • US5014793 has a rotating electric hand tool on the workpiece side on a handle a motionless trigger switch with force sensor, which after an initial actuation by the index finger activates the automatic speed control, which depends on the force of the index finger on the trigger switch.
  • the over the Forefinger applied force requires a motor control of the user who with the handling of the electric hand tool machine is not intuitively correlated.
  • the object of the invention is the realization of a secure, intuitive control an at least partially rotating electric hand tool.
  • an at least partially rotating electric hand tool machine with a tool holder for a tool a workpiece side of a handle arranged, advantageously this workpiece side only partially covering, pressure switch for activating the connection of a power source with an electric motor, which with a control electronics is connected, which is connected to a force sensor, the between the tool holder and the handle for measuring a contact force of the Electric hand tool machine is designed and suitably arranged against a workpiece.
  • the pressure switch is designed as a discrete switch, whereby its discrete Switching states can be used directly to control the control electronics.
  • control electronics are controllably connected to a mode selector switch, whereby at different selected operating modes of the control electronics different Control programs are selectable.
  • the electric hand tool has an axially limited movable Impact element, which with respect to the tool holder axially by a maximum of 1 mm displaceable, which mediates with the by the contact force dependent control Abandonment of an otherwise necessary mechanical impact shutdown over a switching path of the striking element greater than 1 mm, the axial play in the Tool holder is reduced and thus a more precise attachment and work in the Operating Modes ⁇ Drill Chisels >> and ⁇ Chisels >> is enabled.
  • a first at least partially rotating operating mode assigned Control method is in a first step by pressing the pressure switch s Control is activated, which in a second step, the electric motor depending on a the force measured by the force sensor controls which with the contact pressure of the Electric hand tool machine is correlated against the workpiece.
  • the sensitivity of the controller with respect to the Force sensor measured force depending on an activation period of the second Step further advantageous degressive with respect to the activation period, whereby the Electric hand tool machine in an optimal for drilling operation mode ⁇ LowPowerDrilling >> sensitively reacts to the contact pressure.
  • the controller always controls the electric motor above one Minimum speed, which is optional depending on the operating mode, thereby providing for the user the activity of the control by a movement of the tool is reliably recognizable.
  • the controller disabled, which stops the control intuitively when the clasping of the leading hand loosens around the handle.
  • the Activation of the control by a in a trigger period of maximum 0.5 s, triggering operation / discharge of the pressure switch, whereby the activation via a Click occurs and thus during the second step, the pressure switch is not permanent must be pressed and thus in particular the index finger in the operating mode ⁇ Meissein >> is relieved.
  • Activation of the control in the first step with a measured force peak greater than one Activation force, advantageously within a trigger period of less than 0.5 s, whereby in the operating mode ⁇ chisel >> a ⁇ kickstart >> is realized.
  • a pressure switch 5 On the workpiece side on a handle 4, this only partially covering, in Form a potentiometer switch, a pressure switch 5 to activate the connection of a Power source 6 in the form of the power supply network with a driving electric motor. 7 arranged.
  • a for measuring a contact force F of the electric hand tool 1 against a workpiece suitable force sensor 8 is between the tool holder 2 and arranged the handle 4.
  • the Via an externally operable mode selector 9, the is connected to an electronic control unit 10 for the electric motor 7, the different operating modes I - V I of the electric hand tool 1 selectable the functions ⁇ Drill Chisels >>, ⁇ LowPowerDrilling >>, ⁇ Highspeed >>, ⁇ Meissein >>, ⁇ Chisels - TimeOut >>, ⁇ Chisels - Kickstart >> are assigned.
  • Fig. 3 is in the rotating and beating operating mode I ⁇ drill bits >> with the function parameter FS: I from the control electronics in a three-step
  • Control method monitors in a first step of the control parameter PM, which is changes by pressing the discrete pressure switch.
  • a subsequent second step is with a control function OV, the speed control of the electric motor proportional to Contact force parameter CF controlled, but at least proportional to the normalized Idle parameter IS.
  • a time domain ⁇ t one of the force sensor measured, below a negative threshold negative force with CF ⁇ 0 is the electric motor is controlled in proportion to the amount of this negative force.
  • Fig. 4b takes in the operating mode II ⁇ LowPowerDrilling >> in a time range .DELTA.t the Sensitivity of the control function OV by the contact force parameter CF progressive with the Activation period of the second step, where on, the minimum speed of 60 rpm in the operating mode ⁇ LowPowerDrilling >> not assigned lower limit is fallen short of.
  • Fig. 4f takes place in the pure beating operating mode V I ⁇ chisel - Kickstart >> alternatively the activation independent of the control parameter PM by short-term Exceeding the contact force parameter CF, an activation force peak assigned, upper threshold within 0.5 s.
  • the deactivation takes place after Falling below a, the blank space associated, lower threshold by the Contact force parameter CF over a time range ⁇ t.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Boring (AREA)
  • Portable Power Tools In General (AREA)
EP04101428A 2003-04-11 2004-04-07 Contrôle d'un outil électrique Expired - Lifetime EP1466702B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10316844 2003-04-11
DE10316844A DE10316844A1 (de) 2003-04-11 2003-04-11 Steuerung einer Elektrohandwerkzeugmaschine

Publications (2)

Publication Number Publication Date
EP1466702A1 true EP1466702A1 (fr) 2004-10-13
EP1466702B1 EP1466702B1 (fr) 2008-10-01

Family

ID=32864451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04101428A Expired - Lifetime EP1466702B1 (fr) 2003-04-11 2004-04-07 Contrôle d'un outil électrique

Country Status (4)

Country Link
US (1) US20040200628A1 (fr)
EP (1) EP1466702B1 (fr)
JP (1) JP4750370B2 (fr)
DE (2) DE10316844A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2189249A1 (fr) * 2008-11-25 2010-05-26 Robert Bosch GmbH Dispositif de machine-outil et machine-outil
CN102528773A (zh) * 2010-12-27 2012-07-04 株式会社牧田 作业工具
WO2013174641A1 (fr) * 2012-05-25 2013-11-28 Robert Bosch Gmbh Unité de percussion
CN105467865A (zh) * 2014-09-25 2016-04-06 罗伯特·博世有限公司 运行控制装置
CN109590949A (zh) * 2017-09-30 2019-04-09 苏州宝时得电动工具有限公司 用于动力工具的控制装置及方法以及动力工具
EP3626399A1 (fr) 2018-09-20 2020-03-25 Hilti Aktiengesellschaft Machine-outil portative et procédé de fonctionnement d'une machine-outil portative

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GB0503558D0 (en) * 2005-02-22 2005-03-30 Black & Decker Inc Actuation apparatus for power tool
GB0503784D0 (en) * 2005-02-24 2005-03-30 Black & Decker Inc Hammer drill
JP4440169B2 (ja) 2005-05-16 2010-03-24 株式会社マキタ 電動打撃工具
DE202005011592U1 (de) * 2005-07-23 2006-11-23 Dolmar Gmbh Sicherheitsschalter für Trennschleifer
JP2017164858A (ja) * 2016-03-17 2017-09-21 株式会社マキタ 電動工具
DE102006059078A1 (de) * 2006-12-14 2008-06-19 Robert Bosch Gmbh Elektrogerät mit aufgerastetem drehbarem Bedienungselement
DE102007050307A1 (de) * 2007-10-22 2009-04-23 Robert Bosch Gmbh Handwerkzeugmaschine
CN101676052B (zh) * 2008-09-19 2013-10-30 德昌电机(深圳)有限公司 带力度感应装置的电钻
EP2467239B1 (fr) * 2010-03-31 2014-03-19 Hitachi Koki Co., Ltd. Outil électrique
JP5697457B2 (ja) * 2011-01-05 2015-04-08 株式会社マキタ 電動工具
US8674640B2 (en) * 2011-01-05 2014-03-18 Makita Corporation Electric power tool
DE102011080374A1 (de) * 2011-08-03 2013-02-07 Robert Bosch Gmbh Werkzeugmaschine
DE102012005803A1 (de) * 2012-03-21 2013-09-26 Wacker Neuson Produktion GmbH & Co. KG Bohr-und/oder Schlaghammer mit belastungsabhängiger Anpassung der Schlagzahl
US9872440B2 (en) 2012-05-04 2018-01-23 Felco Motion Sa Handheld power tool
DE102012208913A1 (de) * 2012-05-25 2013-11-28 Robert Bosch Gmbh Schlagwerkeinheit
DE102012208855A1 (de) * 2012-05-25 2013-11-28 Robert Bosch Gmbh Handwerkzeugmaschine
CN103573183A (zh) * 2012-08-06 2014-02-12 周飞 一种改进的气动冲击钻
WO2014034862A1 (fr) * 2012-09-03 2014-03-06 株式会社マキタ Outil à percussion
DE102012221748A1 (de) * 2012-11-28 2014-05-28 Robert Bosch Gmbh Handwerkzeugmaschine
JP6846929B2 (ja) * 2013-03-15 2021-03-24 アルベルティ，ジョン 負荷応答電動ツール
DE102013208902B4 (de) 2013-05-14 2023-12-14 Robert Bosch Gmbh Handwerkzeugvorrichtung
DE102013210926A1 (de) * 2013-06-12 2014-12-18 Robert Bosch Gmbh Elektronikvorrichtung
DE102013212546B4 (de) * 2013-06-28 2023-12-14 Robert Bosch Gmbh Handwerkzeugmaschinenbedienvorrichtung
DE102013212573B4 (de) 2013-06-28 2023-12-14 Robert Bosch Gmbh Handwerkzeugmaschinenschaltvorrichtung
DE102013224759A1 (de) * 2013-12-03 2015-06-03 Robert Bosch Gmbh Werkzeugmaschinenvorrichtung
EP3009236A1 (fr) * 2014-10-16 2016-04-20 HILTI Aktiengesellschaft Machine-outil portative de burinage
EP3023202A1 (fr) * 2014-11-20 2016-05-25 HILTI Aktiengesellschaft Procédé de sécurité et machine-outil manuelle
EP3028821A1 (fr) * 2014-12-03 2016-06-08 HILTI Aktiengesellschaft Procédé de contrôle pour une machine-outils portative
US10580211B2 (en) * 2014-12-15 2020-03-03 Autodesk, Inc. Smart tools and workspaces for do-it-yourself tasks
WO2016196918A1 (fr) * 2015-06-05 2016-12-08 Ingersoll-Rand Company Interfaces utilisateur d'outil électrique
GB201518088D0 (en) * 2015-10-13 2015-11-25 Black & Decker Inc Pavement Breaker
SE539844C2 (sv) 2016-02-16 2017-12-19 Construction Tools Pc Ab Load-based control of breaker tool
DE102016210937A1 (de) * 2016-06-20 2017-12-21 Robert Bosch Gmbh Handwerkzeugmaschine
EP3765226B1 (fr) 2018-03-16 2023-11-01 Milwaukee Electric Tool Corporation Serre-lame pour outil électrique, outil électrique alternatif et procédé d'utilisation d'un tel serre-lame
USD887806S1 (en) 2018-04-03 2020-06-23 Milwaukee Electric Tool Corporation Jigsaw
WO2019194987A1 (fr) 2018-04-03 2019-10-10 Milwaukee Electric Tool Corporation Scie sauteuse
JP7231194B2 (ja) * 2018-11-22 2023-03-01 株式会社神名テックス 掘削装置及び掘削方法
JP7278169B2 (ja) * 2019-08-07 2023-05-19 株式会社マキタ 打撃工具
US11951602B2 (en) * 2020-04-02 2024-04-09 Milwaukee Electric Tool Corporation Power tool
DE102020206450A1 (de) * 2020-05-25 2021-11-25 Robert Bosch Gesellschaft mit beschränkter Haftung Handwerkzeugmaschine
US20220176534A1 (en) * 2020-12-07 2022-06-09 Black & Decker Inc. Power tool with multiple modes of operation and ergonomic handgrip
JP2022158636A (ja) * 2021-04-02 2022-10-17 株式会社マキタ 電動工具及びインパクト工具

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EP1319477A1 (fr) * 2001-12-12 2003-06-18 HILTI Aktiengesellschaft Outil portatif électrique à percussion axiale

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2189249A1 (fr) * 2008-11-25 2010-05-26 Robert Bosch GmbH Dispositif de machine-outil et machine-outil
CN102528773A (zh) * 2010-12-27 2012-07-04 株式会社牧田 作业工具
CN102528773B (zh) * 2010-12-27 2015-09-09 株式会社牧田 作业工具
WO2013174641A1 (fr) * 2012-05-25 2013-11-28 Robert Bosch Gmbh Unité de percussion
CN105467865A (zh) * 2014-09-25 2016-04-06 罗伯特·博世有限公司 运行控制装置
CN105467865B (zh) * 2014-09-25 2020-06-26 罗伯特·博世有限公司 运行控制装置
CN109590949A (zh) * 2017-09-30 2019-04-09 苏州宝时得电动工具有限公司 用于动力工具的控制装置及方法以及动力工具
EP3626399A1 (fr) 2018-09-20 2020-03-25 Hilti Aktiengesellschaft Machine-outil portative et procédé de fonctionnement d'une machine-outil portative
WO2020058031A1 (fr) 2018-09-20 2020-03-26 Hilti Aktiengesellschaft Machine-outil portative et procédé pour faire fonctionner une machine-outil portative

Also Published As

Publication number Publication date
JP2004314298A (ja) 2004-11-11
JP4750370B2 (ja) 2011-08-17
US20040200628A1 (en) 2004-10-14
EP1466702B1 (fr) 2008-10-01
DE10316844A1 (de) 2004-11-04
DE502004008130D1 (de) 2008-11-13

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