EP1360032B1 - Handwerkzeugmaschine zum schliefen, polieren oder dergleichen - Google Patents

Handwerkzeugmaschine zum schliefen, polieren oder dergleichen Download PDF

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Publication number
EP1360032B1
EP1360032B1 EP01989379A EP01989379A EP1360032B1 EP 1360032 B1 EP1360032 B1 EP 1360032B1 EP 01989379 A EP01989379 A EP 01989379A EP 01989379 A EP01989379 A EP 01989379A EP 1360032 B1 EP1360032 B1 EP 1360032B1
Authority
EP
European Patent Office
Prior art keywords
gear
power tool
portable power
tool according
movement
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.)
Expired - Lifetime
Application number
EP01989379A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1360032A1 (de
Inventor
Steffen Wuensch
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 EP1360032A1 publication Critical patent/EP1360032A1/de
Application granted granted Critical
Publication of EP1360032B1 publication Critical patent/EP1360032B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/03—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor the tool being driven in a combined movement

Definitions

  • the invention relates to a hand tool for grinding, polishing or the like according to the preamble of claim 1.
  • a power tool is off WO 94/07654 A known.
  • a hand tool machine which has a switching device by means of which two types of sanding disc movement are selectable.
  • the invention relates to a power tool for grinding, polishing or the like, with a drive motor, coupled to the drive motor gear and operatively connected to the grinding sanding pad, wherein the transmission has a switching device by means of at least two types of sanding pad movements are preselected, the Switching device cooperates with two meshing gears, one of which is connected to the sanding pad, and wherein the switching device comprises at least one locking bolt, which cooperates with at least one recess of the first or the second gear.
  • the switching device has a first locking bolt for engagement in a recess of the first gear and a second locking bolt for engagement in a recess of the second gear.
  • a hand tool of such a design has the advantage that without assembly work, an adaptation of the machine to the required type of movement of the grinding divider is possible, without changing the grinding plate.
  • the hand tool according to the invention thus provides a high ease of use and a great deal of flexibility in terms of conditions of use.
  • an orbital movement of the grinding disc takes place in at least one selectable movement.
  • the user has an orbital sander available in at least one preselectable operating mode.
  • a rotation of the sanding pad can take place.
  • the rotation can be triggered either by the orbital movement of the sanding pad or, when the sanding pad is in rotation with a freewheel, by the machining of a surface.
  • a freewheel with respect to the rotation a particularly high quality of the surface treated by means of the machine tool can be achieved, since the freewheel leads to a gentle surface treatment in that the sanding pad may optionally yield rotationally.
  • the sanding pad is subjected to a so-called forced drive. This is usually done in such a way that an additional self-rotation is imposed on the sanding plate via an armature shaft of the drive motor and an eccentric sleeve connected thereto.
  • the hand tool according to the invention may be designed so that by means of the switching device, the rotation of at least one of the gears can be prevented.
  • a structurally particularly simple and space-saving embodiment of the hand tool according to the invention is when the first gear connected to the sanding pad has an outer toothing that meshes with an internal toothing of the second gear.
  • the first gear is then so-called planetary gear and the second gear is formed as a so-called ring gear.
  • a transmission ratio is adjustable, which advantageously allows a high oscillation frequency of the sanding disc at the same time low sanding disc speed.
  • the gear is arranged with the internal toothing in a sliding bearing ring.
  • this represents a space-saving storage of this gear wheel and, on the other hand, has the advantage that only slight frictional forces have to be overcome during rotation of this gear wheel.
  • the gear is arranged with the internal toothing in a rolling bearing.
  • the locking bolt engages in a recess of the Xohlrads, whereby its rotation is prevented in the sliding bearing ring, the planetary gear in its eccentric motion is imposed a self-rotation. There is therefore a so-called forced drive. The eccentric movement of the planetary gear is thus superimposed by a self-rotation of the same.
  • the switching device for displacing the at least one locking bolt comprises a switching ring.
  • the switching ring represents the actuating device for the at least one locking bolt.
  • the switching ring is mounted for example in a preferably two-part housing of the transmission and actuated in the circumferential direction.
  • the switching ring has at least one axial, circular arc-shaped recess in which a locking bolt is guided. If the switching device has two locking bolts, the switching ring preferably has two recesses, into each of which a locking bolt is guided.
  • the switching ring in the region of the at least one axial, circular arc-shaped recess has a ramp-like slope, by means of which the at least one locking bolt is axially displaceable by rotating the switching ring.
  • the bevels By appropriate arrangement of the bevels, it is possible that a larger diameter with an area on the upper part of the switching ring resting latch bolt in a position of the switching ring in a recess of the first gear and the other locking bolt in a different position Switching rings engages in a recess of the second gear.
  • this is preferably loaded by a spring in the axial direction.
  • a particularly simple embodiment of such a spring is in a spring plate, which engages in a recess or a slot of the locking bolt and this axially loaded.
  • the switching ring can be manually operated, so that it can be brought by simple manual offset in the particular desired switching position, or it can also be operated with a control and / or regulating unit via an actuator.
  • the sanding pad preferably has a plan, which has at least one straight boundary edge and at least one arcuate boundary edge.
  • a hand grinder 10 is shown.
  • the hand grinder 10 comprises a not visible here electric motor, which is arranged in a device housing 12 and an armature shaft 14 drives.
  • the armature shaft 14 rotatably engages in an eccentrically arranged recess 16 of a so-called eccentric sleeve 18.
  • the eccentric sleeve 18 has a centrally disposed bore 20, in which a screw 22 engages, which serves for fastening a first gear 24.
  • the first gear 24 is rotatably mounted on the eccentric sleeve 18 via a ball bearing 26 and rotatably connected to a sanding pad 28.
  • the sanding pad 28 may have different embodiments depending on the application. So is in Fig. 1 and 2 in each case a sanding disc for eccentric sanding operation shown. On the other hand is in Fig. 3 a sanding pad 28 shown for vibratory grinding operation. However, a suitably suitable sanding pad can also be used for all preselectable operating modes.
  • the sanding pad 28 is mounted eccentrically relative to the armature shaft 14.
  • the axis of the grinding plate 28 therefore always performs in operation an eccentric movement, a so-called orbital motion, to the axis of the armature shaft.
  • the grinding machine 10 has a switching device 30, by means of the different types of movement of the grinding plate 28 are preselected and the in 4 to 6 is shown in enlarged views.
  • the switching device 30 has a two-part housing 32, which communicates with the device housing 12 in conjunction or forms with this a structural unit and which, among other things, the first gear 24 encloses. Furthermore, a sliding bearing ring 36 is received in an annular groove 34 of the housing 32, which serves as a bearing for a relative to the sliding bearing ring 36 concentrically arranged second gear 38 with an internal toothing, not shown in the drawing.
  • the thus formed as a so-called ring gear second gear 38 meshes with the first gear 24, which also has an external toothing, not shown in the drawing and represents a so-called planetary gear.
  • the meshing region of the two gears 24 and 38 shown in the drawing is each provided with the reference numeral 40.
  • the second gear 38 is further provided with circumferentially regularly arranged, axial bores 42 which are formed like a blind hole ( 4 to 5 ).
  • the gear 24 with the external toothing is also provided with circumferentially regularly arranged, axial bores 44. However, these are formed as through holes.
  • the switching device 30 has a so-called switching ring 96, which is guided displaceably in the housing 32 in the circumferential direction.
  • the switching ring 46 has an actuating handle 48, which passes through a radial slot 50 of the housing 32 and is arranged displaceably in the circumferential direction of the housing 32 in the radial slot 50.
  • the switching ring 46 is arranged eccentrically relative to the housing 32 and serves to select different types of movement of the grinding plate 28.
  • the switching ring 46 has two arcuate, the switching ring 46 axially sweeping recesses 52 and 54.
  • two ramp-shaped bevels 56 and 58 are formed on the upper side of the switching ring, which connect an upper switching level 60 with a lower switching level 62 .
  • In the recesses 52 and 54 each extending in the axial direction locking bolt 64 and 66, respectively.
  • the locking bolt 64 which is slightly longer than the locking bolt 66, serves to engage in one of the bores 42 of the second gear 38.
  • the locking bolt 66 is used to engage in one of the bores 44 of the first gear 24.
  • the locking bolts 64 and 66 each have a head 76 and 78, which rests on the top of the switching ring 46, in particular depending on the position of the switching ring 46 either on the upper switching level 60 or on the lower switching level 62.
  • the locking bolts 64 and 66 are each loaded by a trained as a spring plate spring 68 and 70 in the direction of engagement position in the holes 42 and 44 in the axial direction.
  • the springs 68 and 70 engage in slots 72, 74 on the heads 76, 78 of the bolts 64, 66 and are clamped with their ends facing away from the locking bolt in the housing 32.
  • the switching ring 46 At the in Fig. 1 illustrated switching position is the switching ring 46 in a rotational position in which the head 76th of the locking bolt 64 rests on the lower switching level 62, the locking bolt 64 is thus in the lowered position and engages with its lower end in one of the blind holes 42 of the second gear 38.
  • the second gear 38 is secured against rotation.
  • the head 78 of the locking bolt 66 is located on the upper switching level 60 of the switching ring 46, so that the first gear 24 can rotate.
  • this switching position of the grinding plate 28 is subjected to the operation of the grinding machine 10 of an eccentric movement and due to a force exerted on the first gear 24 by means of the second gear 38 positive drive a self-rotation.
  • the locking bolt 66 engages in a bore 44 of the first gear 24, whereby the latter is secured against rotation.
  • the diameter of the locking bolt 66 is less than that of the holes 44, so that the eccentric movements of the first gear 24 can be compensated for the armature shaft 14 during operation of the grinding machine.
  • this switching position of the sanding pad 28 is subjected during operation of the grinding machine 10 a vibratory grinding movement or a pure eccentric movement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP01989379A 2001-02-03 2001-12-06 Handwerkzeugmaschine zum schliefen, polieren oder dergleichen Expired - Lifetime EP1360032B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10104993 2001-02-03
DE10104993A DE10104993A1 (de) 2001-02-03 2001-02-03 Handwerkzeugmaschine zum Schleifen, Polieren oder dergleichen
PCT/DE2001/004607 WO2002062526A1 (de) 2001-02-03 2001-12-06 Handwerkzeugmaschine zum schliefen, polieren oder dergleichen

Publications (2)

Publication Number Publication Date
EP1360032A1 EP1360032A1 (de) 2003-11-12
EP1360032B1 true EP1360032B1 (de) 2008-02-20

Family

ID=7672804

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01989379A Expired - Lifetime EP1360032B1 (de) 2001-02-03 2001-12-06 Handwerkzeugmaschine zum schliefen, polieren oder dergleichen

Country Status (6)

Country Link
US (1) US6749493B2 (zh)
EP (1) EP1360032B1 (zh)
JP (1) JP4532072B2 (zh)
CN (1) CN100457393C (zh)
DE (2) DE10104993A1 (zh)
WO (1) WO2002062526A1 (zh)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE502004003817D1 (de) * 2003-04-09 2007-06-28 Guenther Boehler Gmbh Vorrichtung zur Bearbeitung von Oberflächen
DE102004055270A1 (de) * 2004-11-17 2006-05-18 Robert Bosch Gmbh Führungsvorrichtung
CN1724216A (zh) * 2005-07-21 2006-01-25 苏州宝时得电动工具有限公司 多功能砂光机
US20090209182A1 (en) * 2006-09-05 2009-08-20 Dynabrade, Inc. Locking random orbital dual-action head assembly
US7713110B2 (en) * 2006-09-05 2010-05-11 Dynabrade, Inc. Locking random orbital dual-action head assembly
US20100151775A1 (en) * 2006-09-05 2010-06-17 Dynabrade, Inc. Locking random orbital dual-action head assembly with centering
DE102007018466A1 (de) 2007-04-19 2008-10-23 Robert Bosch Gmbh Motorisch angetriebene Werkzeugmaschine
CN100526012C (zh) * 2007-09-30 2009-08-12 苏州协成模具科技有限公司 一种研磨抛光机
CN100553878C (zh) * 2007-09-30 2009-10-28 苏州协成模具科技有限公司 研磨抛光机
DE102008004638A1 (de) 2008-01-16 2009-07-23 Robert Bosch Gmbh Motorisch angetriebene Werkzeugmaschine
US8172642B2 (en) 2008-08-20 2012-05-08 Black & Decker Inc. Multi-sander
US8328599B2 (en) * 2009-10-05 2012-12-11 Tai-Her Yang Internal rotation type direct motor-drive portable angle grinder
USD623034S1 (en) 2009-12-18 2010-09-07 Techtronic Power Tools Technology Limited Tool arbor
USD619152S1 (en) 2009-12-18 2010-07-06 Techtronic Power Tools Technology Limited Adapter
DE102010012025B4 (de) * 2010-03-19 2022-02-03 Festool Gmbh Hand-Werkzeugmaschine mit einem Drehwinkel-Führungsmittel aufweisenden Exzentergetriebe
DE102010012022A1 (de) * 2010-03-19 2011-09-22 Festool Gmbh Hand-Werkzeugmaschine mit einem Handgriff
DE102010012024B4 (de) * 2010-03-19 2015-05-28 Festool Gmbh Handwerkzeugmaschine mit einem Zwangsrotation-Exzentergetriebe
DE102010012021B3 (de) * 2010-03-19 2011-09-22 Festool Gmbh Hand-Werkzeugmaschine mit einem Exzentergetriebe und einer Sperre
USD651062S1 (en) 2010-09-29 2011-12-27 Milwaukee Electric Tool Corporation Tool interface for an accessory
USD646542S1 (en) 2010-09-29 2011-10-11 Milwaukee Electric Tool Corporation Accessory interface for a tool
USD653523S1 (en) 2010-09-29 2012-02-07 Milwaukee Electric Tool Corporation Adapter for a tool
US9421682B2 (en) 2011-07-18 2016-08-23 Black & Decker Inc. Multi-head power tool with reverse lock-out capability
US9555554B2 (en) 2013-05-06 2017-01-31 Milwaukee Electric Tool Corporation Oscillating multi-tool system
US9956677B2 (en) 2013-05-08 2018-05-01 Black & Decker Inc. Power tool with interchangeable power heads
CN107791130B (zh) * 2016-09-07 2023-12-08 苏州宝时得电动工具有限公司 多功能砂光机
US10603760B2 (en) 2017-09-19 2020-03-31 Campbell Hausfeld, Llc Multifunction rotary tool including hub
US10414014B2 (en) 2017-09-19 2019-09-17 Campbell Hausfeld, Llc Multifunction rotary tool including driveshaft

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DE4012774C1 (en) * 1990-04-21 1991-10-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De Manual eccentric grinder with rotation reverser - which is used for grinding wheel switching on and off, with eccentric spindle hub centring machine gear
JP3063872B2 (ja) * 1992-06-08 2000-07-12 株式会社マキタ 研磨機
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JPH07201756A (ja) * 1993-12-28 1995-08-04 Tokyo Electron Ltd 熱処理装置
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Also Published As

Publication number Publication date
CN100457393C (zh) 2009-02-04
DE10104993A1 (de) 2002-08-22
DE50113644D1 (de) 2008-04-03
JP2004517747A (ja) 2004-06-17
CN1422199A (zh) 2003-06-04
JP4532072B2 (ja) 2010-08-25
EP1360032A1 (de) 2003-11-12
WO2002062526A1 (de) 2002-08-15
US20030109207A1 (en) 2003-06-12
US6749493B2 (en) 2004-06-15

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