EP0909615A1 - Outil à main motorisé - Google Patents

Outil à main motorisé Download PDF

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Publication number
EP0909615A1
EP0909615A1 EP98111693A EP98111693A EP0909615A1 EP 0909615 A1 EP0909615 A1 EP 0909615A1 EP 98111693 A EP98111693 A EP 98111693A EP 98111693 A EP98111693 A EP 98111693A EP 0909615 A1 EP0909615 A1 EP 0909615A1
Authority
EP
European Patent Office
Prior art keywords
handle
housing
hand tool
carrier
tool according
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.)
Ceased
Application number
EP98111693A
Other languages
German (de)
English (en)
Inventor
Boris Rudolf
Heinrich Henssler
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.)
C&E Fein GmbH and Co
Original Assignee
C&E Fein GmbH and Co
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 C&E Fein GmbH and Co filed Critical C&E Fein GmbH and Co
Publication of EP0909615A1 publication Critical patent/EP0909615A1/fr
Ceased legal-status Critical Current

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Classifications

    • 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 relates to a power-operated hand tool a housing in which a drive for a tool is accommodated is, with at least a first handle on a carrier is fixed, which is attached to the housing with a first end is and protrudes laterally from the housing with a second end.
  • Such a hand tool is known from DE 38 26 212 A1.
  • the known hand tool is a hammer drill, with a fixed one attached below the housing Handle handle and an additional handle handle (chisel handle), which is only applied when chiseling.
  • the chisel handle is on the housing at a perpendicular to the handle of the handle provided crossbar attached and extends parallel to Handle handle, but in the opposite direction, namely towards above.
  • the chisel handle can be moved by a certain amount be pivoted to better hold the hand tool to enable.
  • the known hand tool may be an improved one as a rotary hammer Allow grasping of the hand tool, however the additional assembly or disassembly of the second handle proven cumbersome and sometimes distracting. Further even with such an additional handle, an optimal, particularly ergonomic posture for the user of the Hand tool enables.
  • EP 0 142 650 A2 in addition to a pistol-shaped Handle at the end of the drill an additional handle to be provided on the spindle neck of the drill below the gearbox is attached using a clamp.
  • the additional handle is at both ends with a Connected bracket, which in the clamp for attachment to Spindle neck of the machine passes.
  • Such an arrangement can either be optimized for separation, working in the direction of the cutting disc, or optimize for roughing, being flat with the surface the grinding wheel is being worked. Optimal posture both for roughing as well as for cutting with a simultaneous Damping the handle is not possible here.
  • the invention is therefore based on the object, a power-driven Hand tool according to the type mentioned above to improve that improved handling especially at an execution as an angle grinder is achieved to a possible to enable fatigue-free working. Furthermore to improve damping for shocks from the tool, Vibrations, shaking movements, load reactions and the like to be able to work even under difficult conditions with heavy equipment fatigue for the user to keep it as low as possible.
  • the handle of one Carrier with a free end towards the housing protrudes, that the handle is closer to the center of gravity of the hand tool, which makes the hand tool considerably can be kept easier because lever arms are shortened are.
  • the fact that the handle with a End is not recorded on a bracket or the like, but protrudes freely from the carrier, achieves an improved damping effect, so that vibrations and shocks occurring when working and the like. To a significantly reduced extent by the user of the Hand tools are perceived.
  • the carrier has at least one second receptacle for attaching the first Handle in a second angled to the first position Position on.
  • the hand tool is a preferred further development of this embodiment designed as an angle grinder with an elongated housing, the gearbox at its tool end with one arranged at an angle to the longitudinal axis of the housing Has drive spindle for a disk-shaped tool, the first and second receptacles of the carrier being arranged in this way are that the first handle in the first position positioned for roughing and in the second position for cutting is.
  • this is second recording arranged so that the in the second position attached first handle runs such that a through the focus of the hand tool is about the level The middle of the first handle runs.
  • the first shot arranged so that the first handle in the first position on the side of the gear housing facing away from the tool runs near the axis of rotation of the drive spindle.
  • an optimized one can be obtained fatigue-free posture both when separating and reach when roughing.
  • the tool can both during cutting and roughing.
  • a second Handle on the end of the housing facing away from the tool essentially arranged in the longitudinal direction of the housing and around its Longitudinal axis adjustable at least in two angular positions.
  • the switch for switching the angle grinder on and off can be.
  • Both for the separator and for the The second handle can be comfortably gripped from above as it is depending on the working method in the desired Position can be adjusted about its longitudinal axis.
  • an adjustment possibility by a total of 2 x 90 ° preferred to both a cut-off from the right as well as from the left as well to allow rough grinding.
  • the carrier is included its first end on the housing in different angular positions noticeable.
  • the housing and cooperating with each other at the first end of the carrier Locking elements for form-fitting fixing of the carrier provided in different angular positions.
  • the free end protrudes of the first handle achieved an improved damping effect.
  • the carrier can be used as a damping element be designed for vibration damping.
  • the carrier as a rubber-metal composite part, as a plastic part with damping inserts or similar to train.
  • the Carrier a surface designed as a protective shield to protect against Touching the tool.
  • the first handle can be used by both right-handed people as well as for left-handers.
  • the hand tool as a drill with a second pistol-shaped Handle formed on the end of the housing facing away from the tool and the first handle in the first position opposite one perpendicular to the axis of rotation of a chuck Plane at an acute angle towards the second pistol-shaped Handle inclined backwards.
  • FIG. 1 shows a hand tool according to the invention as a whole number 10.
  • the hand tool 10 is a version as Two-hand angle grinder with a first handle 30 on the front End of the housing 12 and a second handle 38 on rear end of the housing, which is designed as a switch handle is.
  • the angle grinder is in a known manner with a Quick release lever 48 provided for clamping a grinding wheel and has a protective hood in a likewise known manner 20 for the grinding wheel, which can be adjusted in angle if necessary can be arranged.
  • a drive 14 not shown in Formed an electric motor, whose rotary motion over an angular gear in the gear housing 16 at the front end of the Housing 12 in a drive movement for a drive spindle is implemented with the tool in the form of a roughing or Cutting disc is driven.
  • the first handle 30 is on an approximately rod-shaped Carrier 28 set, which is approximately at right angles from the gear housing 16 protrudes to the side and has a first end 63 in a receptacle 50 in the form of a threaded bore using a Fastener such as a screw 46 set is.
  • the carrier 28 has one at its second, outer end 64 first receptacle 42 for receiving the first handle 30 and a second, only schematically indicated receptacle 44 for receiving of the first handle 30 in a different position.
  • Handle 30 In the first position 61 of the first shown in FIG. 1 Handle 30 is this in the first receptacle 42, which is a threaded blind hole is trained, screwed in and stands with his outer, free end 29 somewhat obliquely forward and in the direction to the longitudinal axis 18 of the housing 12. The first move 30 closes in this first position 61 with the carrier 28 about an angle of 30 to 70 °.
  • the angle grinder used for roughing being a workpiece surface is processed flat with the grinding wheel. This stops the operator holds the hand tool 10 with his left hand first handle 30 and with the right hand on the second handle 38.
  • the carrier 28 and the first receptacle 42 arranged such that the first handle 30 in the direction extends to the longitudinal axis 18 of the housing 12 and thus as far as possible is close to the center of gravity of the machine.
  • the bracket 28 is angular adjustable on the receptacle 50 of the gear housing 16 fixed, as indicated by the double arrow 36.
  • the second handle 38 on the protective hood 20 opposite End of the angle grinder has a button 41 on it Top and a switch 40 only indicated by dashed lines its bottom on. For security reasons, the switch 40 can only be operated when the button 41 is depressed is.
  • the second handle 38 is about its longitudinal axis, which is approximately in Direction of the longitudinal axis 18 of the housing 12 extends in three different angular positions, each 90 ° to each other are offset, adjustable, as indicated by the double arrow 39 is. In the position shown for roughing the second handle in such a position that button 41 is on top and switch 40 is on the bottom lies, so that the button 41 is depressed with the thumb while working can be and the button 40 then by contracting the rest of the fingers on the underside of the handle 38 can be operated.
  • the first handle 30 at the second end 64 of the carrier 28 is fixed, the side of the gear housing 16 protrudes and the handle with only one end in the first holder 42 is screwed onto the second end 64 of the carrier 28 and the other end of the handle 30 is formed as a free end 29 is, the first handle 30 contributes significantly Damping vibrations, load change movements, vibrations and the like. When working from the tool to the handle be transmitted.
  • the special arrangement of the first handle 30 and the second handle 38 one ergonomically particularly favorable posture achieved that additionally still optimized by angular adjustment of the carrier 28 can be. Because the first handle 30 is near the gearbox 16, just above the focus of the Machine is located, relatively low leverage occurs, so that fatigue-free work is made possible.
  • the first handle 30 is for Right-handed who normally uses the machine right hand on the second handle 38 and with the left hand on guide first handle 30.
  • a further receptacle 52 for attaching the Carrier 28 provided.
  • screwing the carrier 28 into the second receptacle 52 would be the free end 29 of the first handle 30, of course, in turn point towards the gear housing 16.
  • Fig. 2 shows a again designed as an angle grinder Hand tool 10a in a compared to the representation of FIG. 1 position rotated by 90 ° from the side.
  • the angle grinder is largely identical to that previously described with reference to FIG. 1 Angle grinder trained, which is why for appropriate Parts corresponding reference numerals are used.
  • a tool 26 in the form of a cutting disc clamped on the drive spindle 22.
  • the carrier 28 is not screwed to the angle head 16, but via locking elements 31, 32 in different angular positions locked in place, as indicated by the double arrow 36 is. It is in a locked position additionally provided a spring element, not shown.
  • the angle grinder is in a position suitable for cutting shown, the first handle 30 now in the second receptacle 44 of the carrier 28 is screwed in and is thus in a second position 62 opposite the first position 61 is angled according to FIG. 1.
  • the first handle 30 is approximately parallel to the Axis of rotation 24 of the drive spindle 22 extending plane and can, if desired, as shown by the double arrow 36 is, also with its longitudinal axis parallel to the axis of rotation 24 of the drive spindle 22 are aligned.
  • the second handle 38 was compared to that shown in FIG. 1 Position rotated 90 ° counterclockwise, so that the button 41 is in turn on the top of the handle 38 and the switch 40 on the bottom of the Handle 38 is located.
  • the first handle 30 In the illustrated position of the angle grinder suitable for cutting runs the first handle 30 such that a level set by the center of gravity of the hand tool 10a runs through the center of the first handle 30.
  • the hand tool is held without fatigue 10a by means of the first handle 30, since that Hand tool 10a simply hangs vertically downwards without a tilting moment must be exerted on the handle 30.
  • the first handle 30 must either in the first receptacle 42 or in the second receptacle 44 of the carrier 28 are screwed in and if necessary angularly with the help of Locking elements 31, 32 can be set in a suitable position.
  • the second handle 38 is about its longitudinal axis twisted into the appropriate position.
  • FIGS. 3 to 6 Shown in perspective and in total the numbers 10b, 10c, 10d and 10e. The same reference numbers are used used for corresponding parts.
  • the carrier 28 is additionally with a widened Provided area in the form of a protective shield 54 to thus improved protection of a user's hand against touch of the grinding tool to ensure that the hand tool 10b grips the first handle 30.
  • Fig. 4 is again designed as an angle grinder Hand tool 10c shown, but now in one for separating suitable position, the first handle 30, as can be seen, approximately parallel to the axis of rotation of the grinding tool 26 runs.
  • the carrier 28 corresponds to that previously based on the 1 and 2 explained embodiment without a protective shield.
  • Fig. 5 shows an overall designated by the number 10d Hand tool, which is essentially the embodiment according to FIG. 3 corresponds and an angle grinder in a suitable for roughing Position shows.
  • a protective shield 54 provided on the carrier 28, but here in contrast 3 not the carrier 28 itself between its two ends is widened, but an additional one Protective shield 54 attached to the carrier 28 by means of eyelets or the like is.
  • FIG. 6 again shows a hand tool 10e in the form of an angle grinder shown in a position suitable for separation, but here additionally on the carrier 28 Protective shield 54 is attached, which is not parallel to the carrier runs itself, but at a distance from the first handle 30 in its second position 62 suitable for separation runs parallel to the handle 30.
  • FIG. 7 shows a hand tool 10f which is used as a drilling machine, Screwdriver or the like is executed.
  • the hand tool 10f has a drill chuck 56 and a pistol-shaped one second handle 38 of the other part of the housing 12 is angled downwards.
  • the support 28 for the first is on the spindle neck 57 of the housing 12 Handle 30 attached by means of a clamp or the like.
  • the carrier 28 is designed as an approximately L-shaped angle, whose long leg is inclined slightly upwards, so that the first handle 30 from the short leg of the wearer 28 from obliquely upwards towards the housing 12 to one Angle ⁇ protrudes from about 10 to 20 ° inclined, whereby the free end 29 just below in the area of the gear housing 16 is located.
  • Fig. 8 shows a further embodiment of an inventive Hand tool, the total designated with the number 10g is.
  • the hand tool 10g is designed as an orbital sander, the bracket 28 to which the first handle 30 is attached is from the approximately frustoconical gear housing 16 protrudes from the side and engages with its free End 29 again extends in the direction of the gear housing 16.
  • the second handle 38 is set, which here only as Handle knob is formed.
  • the connecting cord 60 is advantageously integrated on the carrier 28 out, so that it leads away to the side without disability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP98111693A 1997-10-14 1998-06-25 Outil à main motorisé Ceased EP0909615A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19745306 1997-10-14
DE19745306A DE19745306C2 (de) 1997-10-14 1997-10-14 Handgriffanordnung für einen Winkelschleifer

Publications (1)

Publication Number Publication Date
EP0909615A1 true EP0909615A1 (fr) 1999-04-21

Family

ID=7845479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98111693A Ceased EP0909615A1 (fr) 1997-10-14 1998-06-25 Outil à main motorisé

Country Status (3)

Country Link
US (1) US6155916A (fr)
EP (1) EP0909615A1 (fr)
DE (1) DE19745306C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3023196A1 (fr) * 2014-11-11 2016-05-25 Robert Bosch Gmbh Meuleuse d'angle dotee d'un prolongement

Families Citing this family (27)

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Publication number Priority date Publication date Assignee Title
US6736037B2 (en) * 1999-03-22 2004-05-18 Ethan Dean Coping saw
DE10005080C1 (de) * 2000-02-04 2001-08-02 Bosch Gmbh Robert Handwerkzeugmaschine mit zumindest einem Handgriff und wenigstens einem elastischen, schwingungsdämpfenden Element
DE10011161A1 (de) * 2000-03-12 2001-09-13 Rodcraft Pneumatic Tools Gmbh Schleifgerät mit Einhandbedienung
DE10131266A1 (de) * 2001-06-29 2003-01-09 Bosch Gmbh Robert Handschleifmaschine
US7293362B2 (en) * 2003-10-20 2007-11-13 Ideal Industries, Inc. Drill powered cable cutter
DE102004016088B4 (de) * 2004-04-01 2012-07-19 Hilti Aktiengesellschaft Zusatzgriffanordnung
DE102005007547A1 (de) * 2005-02-18 2006-08-31 Robert Bosch Gmbh Handwerkzeugmaschine
DE102005062883A1 (de) * 2005-12-29 2007-07-05 Robert Bosch Gmbh Schwingungsreduktion bei Elektrowerkzeugen
US7458882B2 (en) * 2006-03-10 2008-12-02 Assan Izmailov Adjustable handheld tool
DE102006027785A1 (de) * 2006-06-16 2007-12-20 Robert Bosch Gmbh Handwerkzeugmaschine
US7530885B2 (en) * 2006-10-25 2009-05-12 Storm Pneumtic Tool Co., Ltd. Pneumatic grinder with improved handle structure
US8100745B2 (en) * 2007-03-16 2012-01-24 Black & Decker Inc. Low vibration sander with a flexible top handle
DE102007037047A1 (de) * 2007-08-06 2009-02-12 Robert Bosch Gmbh Zusatzhandgriffvorrichtung
EP2123406B1 (fr) * 2008-05-19 2011-12-21 AEG Electric Tools GmbH Support à vibrations amorties pour poignée supplémentaire
JP5572867B2 (ja) * 2009-10-23 2014-08-20 株式会社プロップ 電動工具用ハンドル及びこれを用いた電動工具
USD619152S1 (en) 2009-12-18 2010-07-06 Techtronic Power Tools Technology Limited Adapter
USD623034S1 (en) 2009-12-18 2010-09-07 Techtronic Power Tools Technology Limited Tool arbor
USD646542S1 (en) 2010-09-29 2011-10-11 Milwaukee Electric Tool Corporation Accessory interface for a tool
USD651062S1 (en) 2010-09-29 2011-12-27 Milwaukee Electric Tool Corporation Tool interface for an accessory
USD653523S1 (en) 2010-09-29 2012-02-07 Milwaukee Electric Tool Corporation Adapter for a tool
DE102011089719A1 (de) * 2011-12-23 2013-06-27 Robert Bosch Gmbh Elektrisch betreibbare Werkzeugmaschine
US8966773B2 (en) 2012-07-06 2015-03-03 Techtronic Power Tools Technology Limited Power tool including an anti-vibration handle
DE102013202953A1 (de) * 2013-02-22 2014-09-11 Robert Bosch Gmbh Handwerkzeugmaschine
US9555554B2 (en) 2013-05-06 2017-01-31 Milwaukee Electric Tool Corporation Oscillating multi-tool system
DE102014105842A1 (de) 2014-04-25 2015-10-29 C. & E. Fein Gmbh Handgeführte Werkzeugmaschine mit ergonomischem Griffteil
JP6667236B2 (ja) * 2015-09-10 2020-03-18 株式会社マキタ グラインダ、カバー及びカバーセット
DE102016216794A1 (de) * 2015-09-29 2017-03-30 Robert Bosch Gmbh Handwerkzeugmaschine mit mindestens einem maschinenseitigem Kontaktelement

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DE2816485A1 (de) * 1978-04-15 1979-10-25 Reinhold Haertlein Handschneidgeraet, insbesondere motorsaege o.dgl.
US4382334A (en) * 1981-07-01 1983-05-10 Omark Industries, Inc. Chain saw device
DE3229183A1 (de) * 1982-08-05 1984-02-09 Robert Bosch Gmbh, 7000 Stuttgart Handwerkzeugmaschine mit hilfshandgriff
EP0142650A2 (fr) * 1983-11-19 1985-05-29 C. & E. FEIN GmbH & Co. Poignée pour outils électriques
DE3826212A1 (de) * 1988-08-02 1990-02-08 Bosch Gmbh Robert Elektrisches handwerkzeug
EP0493033A1 (fr) * 1990-12-20 1992-07-01 Makita Corporation Outil rotatif portable
US5172522A (en) * 1991-12-06 1992-12-22 Jares Daniel J Handle used on a hand held grinder or buffer
DE4422247A1 (de) * 1994-06-24 1996-01-04 Fraunhofer Ges Forschung Führungs- und Haltegriff für handgeführte Geräte

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DE2559132C2 (de) * 1975-12-30 1983-11-03 Kurt Richard 7000 Stuttgart Ranger Griffanordnung für tragbare kraftbetriebene Werkzeuge
US4060940A (en) * 1976-01-13 1977-12-06 The Black And Decker Manufacturing Company Adjustable guard construction for cut-off machine
DE3921752A1 (de) * 1989-07-01 1991-01-17 Hilti Ag Handgeraet mit trenn- oder schleifscheibe
SE467690B (sv) * 1990-12-11 1992-08-31 Atlas Copco Tools Ab Vibrationsisolerat verktygshandtag
DE19546328B4 (de) * 1995-12-12 2007-12-13 Robert Bosch Gmbh Handwerkzeugmaschine mit einem drehbaren Handgriff

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2816485A1 (de) * 1978-04-15 1979-10-25 Reinhold Haertlein Handschneidgeraet, insbesondere motorsaege o.dgl.
US4382334A (en) * 1981-07-01 1983-05-10 Omark Industries, Inc. Chain saw device
DE3229183A1 (de) * 1982-08-05 1984-02-09 Robert Bosch Gmbh, 7000 Stuttgart Handwerkzeugmaschine mit hilfshandgriff
EP0142650A2 (fr) * 1983-11-19 1985-05-29 C. & E. FEIN GmbH & Co. Poignée pour outils électriques
DE3826212A1 (de) * 1988-08-02 1990-02-08 Bosch Gmbh Robert Elektrisches handwerkzeug
EP0493033A1 (fr) * 1990-12-20 1992-07-01 Makita Corporation Outil rotatif portable
US5172522A (en) * 1991-12-06 1992-12-22 Jares Daniel J Handle used on a hand held grinder or buffer
DE4422247A1 (de) * 1994-06-24 1996-01-04 Fraunhofer Ges Forschung Führungs- und Haltegriff für handgeführte Geräte

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3023196A1 (fr) * 2014-11-11 2016-05-25 Robert Bosch Gmbh Meuleuse d'angle dotee d'un prolongement

Also Published As

Publication number Publication date
US6155916A (en) 2000-12-05
DE19745306A1 (de) 1999-04-22
DE19745306C2 (de) 1999-09-09

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