EP1391271A2 - Dispositif de sécurité pour outil portatif multifonctionnel - Google Patents

Dispositif de sécurité pour outil portatif multifonctionnel Download PDF

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Publication number
EP1391271A2
EP1391271A2 EP03102526A EP03102526A EP1391271A2 EP 1391271 A2 EP1391271 A2 EP 1391271A2 EP 03102526 A EP03102526 A EP 03102526A EP 03102526 A EP03102526 A EP 03102526A EP 1391271 A2 EP1391271 A2 EP 1391271A2
Authority
EP
European Patent Office
Prior art keywords
control signal
atc
binary
axial
rotation
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
EP03102526A
Other languages
German (de)
English (en)
Other versions
EP1391271A3 (fr
EP1391271B1 (fr
Inventor
Claus Osselmann
Stefan Groer
Peter Hellmann
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 EP1391271A2 publication Critical patent/EP1391271A2/fr
Publication of EP1391271A3 publication Critical patent/EP1391271A3/fr
Application granted granted Critical
Publication of EP1391271B1 publication Critical patent/EP1391271B1/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION 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
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for

Definitions

  • the invention relates to a security module and an associated control method for a multifunctional hand tool, in particular a combination hammer Meisselfunktion.
  • a rotating hand tool has an ATC safety module with a double integration of a twisting movement.
  • the hereby in The content of this document included in the disclosure content serves the person skilled in the art Understanding an ATC security module.
  • a rotating hand tool has a rotating Anti-Torque Control (ATC) security module, which if not permitted Twisting the housing interrupts the drive train, permitting spatial Movements detected by multi-axis accelerometers and by one Fuzzy logic are evaluated, which in this permissible movement the ATC security module disabled. Different operating modes are used by the ATC security module not recorded.
  • ATC Anti-Torque Control
  • DE19942156A1 has a rotating and striking combination hammer Chisel function an ATC security module with an angular acceleration sensitive rotation sensor.
  • the operating modes of the ATC security module of the combination hammer via a Hall sensor on the mode selector switch and the ATC safety module only switched off in exclusive beating fashion.
  • beating chisel mode deactivates the ATC security module, however in Impact drilling mode or rotary drilling mode active. Because of the switching delay, the real one follows Mode does not immediately change the position of the mode selector, causing the ATC security module detected a wrong mode in a short interval and in protection officer fashion is inactive during rotating movement, which is particularly the case with Switching from a running rotating mode to the exclusive beating mode is disadvantageous.
  • the object of the invention is to implement a fashion which is in charge of protection always active ATC safety module for a multifunctional hand tool.
  • a multifunctional hand machine tool has at least one partially axially striking tool holder and a hand-held housing ATC security module with a rotation sensor that is sensitive to angular movement on, the ATC security module being connected to an axial movement sensor.
  • the ATC security module By combining the ATC safety module with the axial motion sensor the ATC security module also has the axial movement information available, whereby a protection-free mode associated with large axial movements directly from the ATC security module can be recognized.
  • the first step is the Determining a rotational movement of the housing, with in the second step A twisting movement exceeds a binary limit value Control signal is generated, which in the last step the power flow between the Electric motor and the tool safely interrupts, with an additional one in the first step Axial movement of the housing is determined, which is exceeded in a second step Axial limit value suppresses the binary control signal by the axial movement.
  • a binary rotation control signal and a binary one are advantageous Axial control signal generated, which the binary via a logical AND operation Generate control signal, whereby the two comparison operations can be separated from each other are.
  • the ascertained axial movement is advantageously integrated twice in time, thereby creating a determined axial acceleration value transferred into an axial path and with a Axial amplitude is comparable as an axial limit.
  • A is optionally combined with respect to a tool axis rotating and striking hand tool with an ATC safety module 1 a control method shown in the block diagram as a control algorithm within a Microcontroller 2 realized, which on the input side with a rotation sensor 3 in Form of an angular acceleration sensor oriented with respect to the tool axis A and with an axial movement sensor 4 in the form of an axial with respect to the tool axis A.
  • arranged acceleration sensor is connected and a binary output Control signal 5 for controlling one between an electric motor 6 and one Tool holder 7 in the power flow arranged safety clutch 8 generated.
  • the determined torsional or axial movement is a block diagram partly integrated in two stages in integrators 9 and in multipliers 10 with factors multiplied and finally added in an adder 11 in the form of a general Equation of motion of the second degree to a comparator 12a, 12b, on which they are compared one rotation limit value 13a and one axial limit value 13b are compared.
  • a comparator 12a, 12b On binary twist control signal 14a of comparator 12a and a binary axial control signal 14b of the comparator 12b become the binary in a subordinate AND gate 15 Control signal 5 linked.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
EP03102526A 2002-08-19 2003-08-13 Dispositif de sécurité pour outil portatif multifonctionnel Expired - Lifetime EP1391271B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10237898A DE10237898B3 (de) 2002-08-19 2002-08-19 Sicherheitsmodul für multifunktionale, drehend und schlagend arbeitende Handwerkzeugmaschine
DE10237898 2002-08-19

Publications (3)

Publication Number Publication Date
EP1391271A2 true EP1391271A2 (fr) 2004-02-25
EP1391271A3 EP1391271A3 (fr) 2008-07-16
EP1391271B1 EP1391271B1 (fr) 2011-01-19

Family

ID=30775421

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03102526A Expired - Lifetime EP1391271B1 (fr) 2002-08-19 2003-08-13 Dispositif de sécurité pour outil portatif multifonctionnel

Country Status (4)

Country Link
US (1) US6843140B2 (fr)
EP (1) EP1391271B1 (fr)
JP (2) JP2004074404A (fr)
DE (2) DE10237898B3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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 (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7395871B2 (en) * 2003-04-24 2008-07-08 Black & Decker Inc. Method for detecting a bit jam condition using a freely rotatable inertial mass
US7552781B2 (en) 2004-10-20 2009-06-30 Black & Decker Inc. Power tool anti-kickback system with rotational rate sensor
US8316958B2 (en) * 2006-07-13 2012-11-27 Black & Decker Inc. Control scheme for detecting and preventing torque conditions in a power tool
US20080021590A1 (en) * 2006-07-21 2008-01-24 Vanko John C Adaptive control scheme for detecting and preventing torque conditions in a power tool
DE102009000515A1 (de) * 2009-01-30 2010-08-05 Hilti Aktiengesellschaft Steuerungsverfahren und Handwerkzeugmaschine
WO2011085194A1 (fr) 2010-01-07 2011-07-14 Black & Decker Inc. Tournevis motorisé possédant une commande d'entrée rotative
FR2985447B1 (fr) 2012-01-05 2014-09-05 Illinois Tool Works Outil a main rotatif a module de controle anti-rotation
US11529725B2 (en) 2017-10-20 2022-12-20 Milwaukee Electric Tool Corporation Power tool including electromagnetic clutch
WO2019084280A1 (fr) 2017-10-26 2019-05-02 Milwaukee Electric Tool Corporation Procédés de commande du recul pour outils électriques
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
US11845173B2 (en) 2020-10-16 2023-12-19 Milwaukee Electric Tool Corporation Anti bind-up control for power tools

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464503A (en) * 1968-06-25 1969-09-02 Black & Decker Mfg Co Measuring device for impact tool
WO1988006508A2 (fr) * 1987-03-05 1988-09-07 Robert Bosch Gmbh Procede d'interruption de l'entrainement, en particulier en percussion et/ou en rotation, d'un outil a main
DE19628945A1 (de) * 1995-11-02 1997-05-07 Bosch Gmbh Robert Verfahren zum Unterbrechen der Antriebstätigkeit einer Handwerkzeugmaschine, sowie nach diesem Verfahren arbeitende Handwerkzeugmaschine
DE19942156A1 (de) * 1999-09-03 2001-03-08 Hilti Ag Umschalteinrichtung für multifunktionale handgeführte Werkzeugmaschinen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4648568A (en) * 1985-05-28 1987-03-10 Phillips Richard G Emergency anti-torque control system and method for helicopters
US5232183A (en) * 1991-03-06 1993-08-03 The Boeing Company Helicopter anti-torque control system utilizing exhaust gas
US5637973A (en) * 1992-06-18 1997-06-10 Kabushiki Kaisha Yaskawa Denki Noncontacting electric power transfer apparatus, noncontacting signal transfer apparatus, split-type mechanical apparatus employing these transfer apparatus and a control method for controlling same
DE4334933C2 (de) * 1993-10-13 1997-02-20 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum zwangsweisen Abschalten von handgeführten Arbeitsmitteln

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464503A (en) * 1968-06-25 1969-09-02 Black & Decker Mfg Co Measuring device for impact tool
WO1988006508A2 (fr) * 1987-03-05 1988-09-07 Robert Bosch Gmbh Procede d'interruption de l'entrainement, en particulier en percussion et/ou en rotation, d'un outil a main
DE19628945A1 (de) * 1995-11-02 1997-05-07 Bosch Gmbh Robert Verfahren zum Unterbrechen der Antriebstätigkeit einer Handwerkzeugmaschine, sowie nach diesem Verfahren arbeitende Handwerkzeugmaschine
DE19942156A1 (de) * 1999-09-03 2001-03-08 Hilti Ag Umschalteinrichtung für multifunktionale handgeführte Werkzeugmaschinen

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9199362B2 (en) 2010-01-07 2015-12-01 Black & Decker Inc. Power tool having 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
US9321156B2 (en) 2010-01-07 2016-04-26 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
US9475180B2 (en) 2010-01-07 2016-10-25 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
USD703017S1 (en) 2011-01-07 2014-04-22 Black & Decker Inc. Screwdriver
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
EP1391271A3 (fr) 2008-07-16
US20040104034A1 (en) 2004-06-03
DE50313420D1 (de) 2011-03-03
DE10237898B3 (de) 2004-03-18
US6843140B2 (en) 2005-01-18
JP2004202675A (ja) 2004-07-22
JP4362050B2 (ja) 2009-11-11
EP1391271B1 (fr) 2011-01-19
JP2004074404A (ja) 2004-03-11

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