EP2110830A2 - Dispositif d'actionnement pour un outil manuel électrique doté d'un interrupteur d'inversion du sens de rotation - Google Patents

Dispositif d'actionnement pour un outil manuel électrique doté d'un interrupteur d'inversion du sens de rotation Download PDF

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Publication number
EP2110830A2
EP2110830A2 EP09155299A EP09155299A EP2110830A2 EP 2110830 A2 EP2110830 A2 EP 2110830A2 EP 09155299 A EP09155299 A EP 09155299A EP 09155299 A EP09155299 A EP 09155299A EP 2110830 A2 EP2110830 A2 EP 2110830A2
Authority
EP
European Patent Office
Prior art keywords
actuating device
switching element
operating element
rocker
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.)
Withdrawn
Application number
EP09155299A
Other languages
German (de)
English (en)
Other versions
EP2110830A3 (fr
Inventor
Michael Meyer
Ursula Faber
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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2110830A2 publication Critical patent/EP2110830A2/fr
Publication of EP2110830A3 publication Critical patent/EP2110830A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
    • H01H9/061—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner enclosing a continuously variable impedance
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
    • H01H9/063—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner enclosing a reversing switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/28—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with three operating positions
    • H01H23/30—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with three operating positions with stable centre positions and one or both end positions unstable

Definitions

  • the invention relates to an actuating device for a power hand tool, with a speed switch for applying a dependent of the desired speed motor voltage to a drive motor and with a direction of rotation switch for switching the direction of rotation of the drive motor.
  • Today's hand-held power tools such as a drill or a cordless screwdriver, usually have a user-to-use switching element with integrated potentiometer, which allows a continuous adjustment of the speed of the tool. Switching the direction of rotation (clockwise or anticlockwise) is done via an additional control element of a device for reversing the direction of rotation.
  • the known actuators allow by the use of two, spatially separated and thus not easily confused, controls and by the use of a mechanical coupling between the two switches safe operation, in which switching the direction of rotation can only be done when not actuated power switch.
  • the two controls can not be operated with one hand, or not with an unchanged hand position, such as in the way of a two-finger operation.
  • the actuating device according to the invention is characterized in claim 1. Further developments and preferred measures emerge from the subclaims.
  • an operating element and a standing with the operating element operatively connected switching element is provided, wherein the switching element is symmetrically adjustable by the operation about a central position that it depends on the direction and size of the deviation from the middle position emits an electrical output signal.
  • the switching element cooperates with a transmitter arranged in the electric hand tool so that the drive motor is controlled with respect to the rotational speed as a function of the speed information determined from the output signal and with respect to the direction of rotation as a function of the rotational direction information determined from the output signal.
  • the actuator according to the present invention combines the controls for the speed function and the direction of rotation function in a control element and thus realizes an operating concept that has the advantage that a two-finger operation is possible. Since only a movable control element is required, also results in a cost savings by eliminating a control element and a reduction of the necessary space in the product. In addition, the control element according to the invention requires a simpler positioning of the assembly in the product.
  • the actuating device in which the switching element is formed in a little complicated manner by a potentiometer, the tap is adjustable around the center position.
  • means for mechanical transmission of the actuation to the tap of the potentiometer can be provided in the operating element.
  • Size corresponds to the deviation of the switching element from its center position.
  • a structurally particularly simple designed control element is rocker-like around the central position around deflected, acting against a symmetrically acting at both ends of the rocker spring force.
  • the switching element may advantageously have an optical, capacitive, magnetic-field-sensitive or pressure-resistant sensor.
  • the operation of the device according to the invention can be achieved by means of force, pulse, time or path control, or the like, of the operating element.
  • FIG. 1 illustrates the principle of the actuator by means of a general block diagram.
  • the input signal 1 is the action emanating from the operator, for example a force applied to the operating element 2.
  • the operating element 2 is in operative connection 3 with a switching element which is located without actuation of the operating element 2 in a symmetrical middle position and generates a rest signal in this rest position.
  • the switching element 4 is adjusted from its symmetrical center position and generates a corresponding output signal 5, which reflects the direction and magnitude of the deviation from the center position.
  • the output signal 5 is the manipulated variable of the switching element 4 extended control element 2 and is evaluated by an evaluation 6 to the effect that the drive motor (not shown) with respect to the speed in dependence of the determined from the output signal 5 speed information 8 and with respect to the direction of rotation in dependence determined from the output signal 5 direction of rotation information 7 is driven.
  • the drive motor not shown
  • the change in resistance of the potentiometer 11 is evaluated.
  • FIG. 2 the operating concept is shown on the basis of a possible realization of the operating and switching element.
  • the operating element 2 is designed as a rocker 9 and mechanically connected to a designed as a potentiometer 11 switching element, both of which are in non-actuation by the user in the center position.
  • the mechanism 12 which deflects the force F from the rocker 9 onto the tap 10 of the potentiometer 11 in such a way that the tap 10 is adjusted according to the direction and magnitude of the actuation, is in FIG FIG. 2 only indicated schematically.
  • a spring force 13 acting symmetrically on both ends of the rocker 9, which enables a force-controlled actuation of the operating element 2.
  • the operating element 2 or 9 may be in the upper part of the FIG. 2 Rest position shown are located.
  • the switching element, here the potentiometer 11, is accordingly in the middle position, which determines the rest position at a value (just in the vicinity) of 50% of the resistance interval of the potentiometer 11, and generates an output signal 5 which compares the evaluation electronics 6 FIG. 1 , is interpreted as meaning that the engine should be in the "OFF" state, that is to say it should not be activated.
  • the middle part of the FIG. 2 shows an operating state, as it results when - by the user - the rocker 9 is acted upon in its upper region with the force F.
  • the tap 10 of the potentiometer 11 is then, as can be seen, adjusted by way of example so that the potentiometer value (approximately) is 51% to 100% and a corresponding output signal 5 is generated.
  • the transmitter 6 interprets this output signal 5 with respect to the direction of rotation as "clockwise" and with respect to the rotational speed as a speed value corresponding to the value of the potentiometer 11 between 0% and 100% of the possible speed.
  • the FIG. 2 in its lower part an operating state in which the rocker 9 is acted upon in its lower region with a force F and the potentiometer 11 is adjusted accordingly so that a potentiometer value of 49% to 0% results. Accordingly, the transmitter controls 6 the motor so that it runs in the "left-hand rotation" with a speed between 0% and 100%.
  • FIG. 3 shows a variant of the actuating device according to the invention, in which the operating element 2 for actuating an additional switch 14, in particular a switch-on of the electrical hand tool, is formed.
  • the additional switch 14 is designed so that an actuation of the (not shown here) switching element 4 only in the actuated state of the additional switch 14 is possible.
  • the operating element 2, as in FIG. 3 be formed rocker-like, so that the additional switch 14 is actuated by a force acting perpendicular to the plane of the rocker 9 force F or parallel to the plane of the rocker 9 deflected.
  • the upper part of the FIG. 3 shows an unpressed rocker 9, so an additional switch 14 in the OFF position, while in the lower part of the FIG. 3 a closed auxiliary switch 14 is shown. In both cases, the rocker 9 is in the rest position with respect to the actuation of the switching element 4.
  • FIG. 4 shows a further variant in which the additional switch 15 is formed so that it upon actuation of the (in FIG. 2 shown) switching element 4 mitbetätigbar is.
  • the rocker 9 In the upper part of the FIG. 4 is the operating element, the rocker 9, with respect to the additional switch 15 in the OFF position and with respect to the operation of the switching element 4 in the rest position.
  • the rocker 9 In the middle part of the FIG. 4 is the rocker 9 depressed at its upper end, whereby on the one hand an ON position of the auxiliary switch 15 and on the other hand, a more or less fast clockwise rotation of the engine is effected.
  • the additional switch 15 In the lower part of the FIG. 4 is the additional switch 15 in the other of its two ON positions, but causes the associated with the operation of the rocker 9, however, in the opposite direction as described above, adjustment of the switching element 4 is a left-hand rotation.
  • buttons arranged next to one another in an operating element 2 can be provided, which can each be actuated in a pulse-controlled manner, ie can be pressed several times in succession, together with the switching element 4 to generate the desired size of the output signal 5.
  • sensors such as a magnetic field sensitive Hall switch, can be used as the switching element 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Numerical Control (AREA)
  • Portable Power Tools In General (AREA)
  • Control Of Ac Motors In General (AREA)
  • Prostheses (AREA)
EP09155299.2A 2008-04-14 2009-03-17 Dispositif d'actionnement pour un outil manuel électrique doté d'un interrupteur d'inversion du sens de rotation Withdrawn EP2110830A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008001154.1A DE102008001154B4 (de) 2008-04-14 2008-04-14 Elektrohandwerkzeug mit einer Betätigungsvorrichtung und einem Antriebsmotor

Publications (2)

Publication Number Publication Date
EP2110830A2 true EP2110830A2 (fr) 2009-10-21
EP2110830A3 EP2110830A3 (fr) 2013-07-03

Family

ID=40823408

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09155299.2A Withdrawn EP2110830A3 (fr) 2008-04-14 2009-03-17 Dispositif d'actionnement pour un outil manuel électrique doté d'un interrupteur d'inversion du sens de rotation

Country Status (3)

Country Link
EP (1) EP2110830A3 (fr)
CN (1) CN101559589B (fr)
DE (1) DE102008001154B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11890741B2 (en) 2019-05-13 2024-02-06 Milwaukee Electric Tool Corporation Contactless trigger with rotational magnetic sensor for a power tool

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10001459A1 (de) 2000-01-15 2001-07-26 Mets Owerke Gmbh & Co Elektrowerkzeuggerät mit Drehrichtungsumschalter

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3201036A1 (de) * 1982-01-15 1983-07-28 Black & Decker, Inc., 19711 Newark, Del. "schaltungsanordnung fuer den links- und rechtslauf von kollektormotoren"
DE3433550A1 (de) 1984-09-13 1986-03-20 Telefunken electronic GmbH, 7100 Heilbronn Elektronischer schalter
US4903318A (en) * 1987-11-13 1990-02-20 Omron Tateisi Electronics Co. Electric switch system for a power tool
DE4004463A1 (de) 1989-07-15 1991-01-24 Kress Elektrik Gmbh & Co Schaltvorrichtung fuer elektrische umschaltung von elektrowerkzeugen
JPH08237993A (ja) * 1995-02-24 1996-09-13 Hitachi Koki Co Ltd 変速電動工具
JPH0957654A (ja) * 1995-08-25 1997-03-04 Hitachi Koki Co Ltd 可変速電動工具
JP3768400B2 (ja) * 2000-11-17 2006-04-19 佐鳥エス・テック株式会社 電動工具スイッチ
DE10334884A1 (de) 2003-07-29 2005-03-10 Alexander Muehlhaeuser Schaltelement für die Drehrichtungs- und Drehzahlwahl von Elektrohandwerksmaschinen insbesondere Akkubohrmaschinen
DE102004020427A1 (de) * 2004-04-27 2005-11-24 Robert Bosch Gmbh Elektrowerkzeug mit Bedienelementen zum Einstellen von Betriebsparametern
JP2007083375A (ja) * 2005-09-26 2007-04-05 Hitachi Koki Co Ltd 電動工具

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10001459A1 (de) 2000-01-15 2001-07-26 Mets Owerke Gmbh & Co Elektrowerkzeuggerät mit Drehrichtungsumschalter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11890741B2 (en) 2019-05-13 2024-02-06 Milwaukee Electric Tool Corporation Contactless trigger with rotational magnetic sensor for a power tool
US12115644B2 (en) 2019-05-13 2024-10-15 Milwaukee Electric Tool Corporation Contactless trigger with rotational magnetic sensor for a power tool

Also Published As

Publication number Publication date
DE102008001154A1 (de) 2009-10-15
CN101559589A (zh) 2009-10-21
DE102008001154B4 (de) 2022-01-27
CN101559589B (zh) 2014-10-29
EP2110830A3 (fr) 2013-07-03

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