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EP2020279A1 - Levier de moment - Google Patents

Levier de moment Download PDF

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Publication number
EP2020279A1
EP2020279A1 EP08104135A EP08104135A EP2020279A1 EP 2020279 A1 EP2020279 A1 EP 2020279A1 EP 08104135 A EP08104135 A EP 08104135A EP 08104135 A EP08104135 A EP 08104135A EP 2020279 A1 EP2020279 A1 EP 2020279A1
Authority
EP
European Patent Office
Prior art keywords
lever
handle
side lever
moment
contact surface
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Withdrawn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
EP08104135A
Other languages
German (de)
English (en)
Inventor
Sören Müller
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 EP2020279A1 publication Critical patent/EP2020279A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
    • B25H1/0057—Devices for securing hand tools to the work
    • 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
    • B25F5/02—Construction of casings, bodies or handles
    • B25F5/025—Construction of casings, bodies or handles with torque reaction bars for rotary tools
    • B25F5/026—Construction of casings, bodies or handles with torque reaction bars for rotary tools in the form of an auxiliary handle

Definitions

  • the invention designates a torque lever which can be fixed to the housing flange of an at least partially rotating hand-held power tool.
  • GB2124536 is directly on the outer housing of a power tool via a pivot joint a longitudinal axis of rotation pivotally mounted lever mounted at the end of which is arranged either radially or tangentially extending side handle.
  • DE10106050 is a tangential to the rotation axis oriented bracket handle rigidly mounted with a clamp on the housing flange of a hand drill.
  • the side handle is connected to the clamp on a rod with a body stop for the upper body of the user.
  • AT389668B is for positioning a Dosensenkers a fitting axially slidably mounted with a clamp on the housing flange, after the DE3928541 a solid guide pin for guiding in a borehole.
  • EP0234066 are for receiving the torque on the clamp two diametrically opposed radial side lever arranged, each having axially displaceable support legs end, which are with their axially oriented contact surfaces on the ground.
  • the support legs lie on the side lying on the ground to be drilled profile support and thus transferred to this torque. This is not possible with diamond core drilling in the ground.
  • the task consists in the realization of a hand-held diamond core drilling in the ground suitable torque lever.
  • a moment lever for mounting on the (axial) housing flange of an at least partially rotating about a rotation axis hand tool suitable clamp and a connected thereto radial side lever having an axially oriented Kontak Chemistry end, the side lever via a pivot joint axially pivoting with the Clamp is connected.
  • the contact surface of the side lever Due to the swivel movement of the side lever made possible by the swivel joint, the contact surface of the side lever always has an adhesive effect on the substrate, irrespective of the axial feed of the hand tool, for example on rough concrete.
  • This stiction can be intuitively increased by the contact pressure of the side lever (for example, by hand or with a raised sole of the user) to derive the torque occurring during diamond core drilling safely to the ground.
  • the hand tool machine acoustically couples to the ground via the side lever and the contact surface, whereby any vibrations of the hand tool are damped.
  • the hand tool can be easier to guide by the underground contact in the remaining degrees of freedom and also the drilling is facilitated by the fixed point of the underground contact.
  • the contact surface is gummed, whereby the static friction is increased at the same contact force.
  • the contact surface is formed as a rolling surface of a radially rollable contact roller, whereby the radial movement of the contact surface occurring during the feed is low in friction.
  • the contact roller is manually fracarretierbar, whereby this forms a firm fixed point when drilling.
  • the side lever is curved towards the (assembled) hand tool, whereby the point of application lying in the middle longitudinal third is closer to the machine side.
  • the machine side on the side lever further advantageously in the middle longitudinal third, a handle arranged, whereby the contact pressure is ergonomically applicable.
  • the handle is oriented tangentially, whereby this is indeed suitable for the transmission of axial, but not of tangential forces on the user, whereby the handle is fatigued.
  • the handle is a (pivoted festlegbarer) closed bow handle, whereby the user's hand is protected by the two outer bracket against contacts (from tangential direction).
  • the moment lever 1 has a radial side lever 5, the end has an axially oriented rubberized contact surface 6 of a radially rollable and lubarretierbaren contact roller 9, which rests on the rough surface 11 friction-locked.
  • the side lever 5 is connected via a pivot joint 7 along the axis of rotation A pivotally connected to the clamp 4.
  • the side of the hand tool 3 curved side lever 5 has in the middle longitudinal thirds on the machine side a handle 10 which extends tangentially (perpendicular to the plane) as well as a closed handle handle with two (the second is in the display plane behind the first) handlebars 12 formed and with respect the side lever 5 is pivoted fixed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
EP08104135A 2007-07-31 2008-05-28 Levier de moment Withdrawn EP2020279A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710000417 DE102007000417A1 (de) 2007-07-31 2007-07-31 Momenthebel

Publications (1)

Publication Number Publication Date
EP2020279A1 true EP2020279A1 (fr) 2009-02-04

Family

ID=39967296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08104135A Withdrawn EP2020279A1 (fr) 2007-07-31 2008-05-28 Levier de moment

Country Status (2)

Country Link
EP (1) EP2020279A1 (fr)
DE (1) DE102007000417A1 (fr)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3552239A (en) * 1968-06-12 1971-01-05 Roy L Yeaman Portable drill press
DE3138516A1 (de) 1981-01-29 1982-08-19 Robert 5446 Engeln Wolff Mobiler handborhrmaschinenhalter
DE3227445A1 (de) * 1981-07-24 1983-02-10 Kabushiki Kaisha Imai Tetsukojo, Ohta, Gunma Fuehrungsvorrichtung fuer elektrische handbohrmaschinen
GB2124536A (en) 1982-08-05 1984-02-22 Bosch Gmbh Robert A hand machine tool provided with an auxiliary handle
US4462282A (en) * 1982-11-15 1984-07-31 Dresser Industries, Inc. Power tool with torque reaction bar
EP0234066A1 (fr) 1986-01-20 1987-09-02 Karl Arne Karlsson Appareil pour le forage manuel
DE8809840U1 (de) * 1988-08-02 1989-11-30 Robert Bosch Gmbh, 7000 Stuttgart Elektrisches Handwerkzeug
AT389668B (de) 1986-12-01 1990-01-10 Kaiser Gmbh & Co Kg Zusatzvorrichtung fuer eine tragbare bohrmaschine od. dgl.
DE3928541A1 (de) 1988-08-29 1990-03-01 Walter Schweikert Halterung fuer eine elektrische handwerkzeugmaschine
DE10106050A1 (de) 2001-02-09 2002-08-14 Hilti Ag Handwerkzeugmaschine mit einem Zusatzhandgriff
US20020132570A1 (en) * 2001-03-13 2002-09-19 The Boeing Company Ergonomic sander handle apparatus and method
EP1400317A1 (fr) * 2002-09-19 2004-03-24 Atlas Copco Electric Tools GmbH Poignée auxiliaire
US20050034276A1 (en) * 2003-08-11 2005-02-17 Badiali John A. Stabilizer for rotary tools

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3552239A (en) * 1968-06-12 1971-01-05 Roy L Yeaman Portable drill press
DE3138516A1 (de) 1981-01-29 1982-08-19 Robert 5446 Engeln Wolff Mobiler handborhrmaschinenhalter
DE3227445A1 (de) * 1981-07-24 1983-02-10 Kabushiki Kaisha Imai Tetsukojo, Ohta, Gunma Fuehrungsvorrichtung fuer elektrische handbohrmaschinen
GB2124536A (en) 1982-08-05 1984-02-22 Bosch Gmbh Robert A hand machine tool provided with an auxiliary handle
US4462282A (en) * 1982-11-15 1984-07-31 Dresser Industries, Inc. Power tool with torque reaction bar
EP0234066A1 (fr) 1986-01-20 1987-09-02 Karl Arne Karlsson Appareil pour le forage manuel
AT389668B (de) 1986-12-01 1990-01-10 Kaiser Gmbh & Co Kg Zusatzvorrichtung fuer eine tragbare bohrmaschine od. dgl.
DE8809840U1 (de) * 1988-08-02 1989-11-30 Robert Bosch Gmbh, 7000 Stuttgart Elektrisches Handwerkzeug
DE3928541A1 (de) 1988-08-29 1990-03-01 Walter Schweikert Halterung fuer eine elektrische handwerkzeugmaschine
DE10106050A1 (de) 2001-02-09 2002-08-14 Hilti Ag Handwerkzeugmaschine mit einem Zusatzhandgriff
US20020132570A1 (en) * 2001-03-13 2002-09-19 The Boeing Company Ergonomic sander handle apparatus and method
EP1400317A1 (fr) * 2002-09-19 2004-03-24 Atlas Copco Electric Tools GmbH Poignée auxiliaire
US20050034276A1 (en) * 2003-08-11 2005-02-17 Badiali John A. Stabilizer for rotary tools

Also Published As

Publication number Publication date
DE102007000417A1 (de) 2009-02-05

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