EP4309844A3 - Manually operated machine tool with a cover device - Google Patents

Manually operated machine tool with a cover device Download PDF

Info

Publication number
EP4309844A3
EP4309844A3 EP23214443.6A EP23214443A EP4309844A3 EP 4309844 A3 EP4309844 A3 EP 4309844A3 EP 23214443 A EP23214443 A EP 23214443A EP 4309844 A3 EP4309844 A3 EP 4309844A3
Authority
EP
European Patent Office
Prior art keywords
working direction
tool
plate
plate tool
processing 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.)
Pending
Application number
EP23214443.6A
Other languages
German (de)
French (fr)
Other versions
EP4309844A2 (en
Inventor
Philipp Eisenmann
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.)
Festool GmbH
Original Assignee
Festool 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 Festool GmbH filed Critical Festool GmbH
Publication of EP4309844A2 publication Critical patent/EP4309844A2/en
Publication of EP4309844A3 publication Critical patent/EP4309844A3/en
Pending legal-status Critical Current

Links

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
    • B24B23/005—Auxiliary devices used in connection with portable grinding machines, e.g. holders
    • 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
    • B24B23/046—Clamping or tensioning means for abrasive sheets
    • 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
    • B24B23/04—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
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/04—Protective covers for the grinding wheel
    • B24B55/05—Protective covers for the grinding wheel specially designed for portable grinding machines

Abstract

Die Erfindung betrifft eine Hand-Werkzeugmaschine (10) mit einem Tellerwerkzeug (30), insbesondere einem Schleifteller oder Polierteller, und einem in einem Maschinengehäuse (11) angeordneten Antriebsmotor (12) zum Antreiben des Tellerwerkzeugs (30) zu einer oszillatorischen und/oder drehenden und/oder exzentrischen Bewegung einer Bearbeitungsfläche (31) des Tellerwerkzeugs (30), wobei die Hand-Werkzeugmaschine mit der Bearbeitungsfläche (31) entlang einer Hauptarbeitsrichtung (HA) nach vorn und seitlich quer zu der Hauptarbeitsrichtung (HA) in mindestens einer Querarbeitsrichtung (QR, QL) zu einem Schleifen oder Polieren einer Werkstückoberfläche (O) führbar ist, wobei die Hand-Werkzeugmaschine eine Abdeckeinrichtung (60; 160; 260) für das Tellerwerkzeug (30) aufweist, die mindestens eine Schutzwand (77, 78) aufweist, die mindestens einer sich neben der Bearbeitungsfläche (31) erstreckenden Seitenfläche (47, 48, 49) des Tellerwerkzeugs (30) bezüglich der Hauptarbeitsrichtung (HA) und/oder der Querarbeitsrichtung (QR, QL) zum Schutz vor einem Kontakt mit Hindernissen (HV, HR, HL) vorgelagert ist. Es ist vorgesehen, dass die mindestens eine Schutzwand (77, 78) bezüglich der Hauptarbeitsrichtung (HA) und/oder der Querarbeitsrichtung (QR, QL) mindestens eine Aussparung (71) aufweist, durch die das Tellerwerkzeug (30) mit einem Seitenrandbereich frei vor eine Außenumfangskontur (80) der Abdeckeinrichtung (60; 160; 260) im Bereich der Bearbeitungsfläche (31) vorsteht, so dass ein sich bis zu dem Seitenrandbereich erstreckender Randabschnitt oder Eckbereich (41) der Bearbeitungsfläche (31) des Tellerwerkzeugs (30) ungehindert durch die mindestens eine Schutzwand (77, 78) für eine randseitige Bearbeitung der Werkstückoberfläche (O) bereitsteht.The invention relates to a hand-held machine tool (10) with a plate tool (30), in particular a grinding plate or polishing plate, and a drive motor (12) arranged in a machine housing (11) for driving the plate tool (30) in an oscillatory and/or rotating manner and/or eccentric movement of a processing surface (31) of the plate tool (30), the hand-held machine tool with the processing surface (31) forward along a main working direction (HA) and laterally transverse to the main working direction (HA) in at least one transverse working direction (QR , QL) can be guided to grind or polish a workpiece surface (O), the hand-held machine tool having a covering device (60; 160; 260) for the plate tool (30), which has at least one protective wall (77, 78). at least one side surface (47, 48, 49) of the plate tool (30) extending next to the processing surface (31) with respect to the main working direction (HA) and / or the transverse working direction (QR, QL) to protect against contact with obstacles (HV, HR , HL) is upstream. It is envisaged that the at least one protective wall (77, 78) has at least one recess (71) with respect to the main working direction (HA) and/or the transverse working direction (QR, QL), through which the plate tool (30) with a side edge region can freely pass an outer peripheral contour (80) of the covering device (60; 160; 260) protrudes in the area of the processing surface (31), so that an edge section or corner region (41) of the processing surface (31) of the plate tool (30) extending up to the side edge region is unhindered by the at least one protective wall (77, 78) is available for edge-side processing of the workpiece surface (O).

EP23214443.6A 2016-04-13 2017-04-10 Manually operated machine tool with a cover device Pending EP4309844A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016106782.2A DE102016106782A1 (en) 2016-04-13 2016-04-13 Hand machine tool with a cover device
PCT/EP2017/058585 WO2017178443A1 (en) 2016-04-13 2017-04-10 Portable power tool having a covering device
EP17717141.0A EP3442747B1 (en) 2016-04-13 2017-04-10 Portable power tool having a covering device

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
PCT/EP2017/058585 Previously-Filed-Application WO2017178443A1 (en) 2016-04-13 2017-04-10 Portable power tool having a covering device
EP17717141.0A Division EP3442747B1 (en) 2016-04-13 2017-04-10 Portable power tool having a covering device

Publications (2)

Publication Number Publication Date
EP4309844A2 EP4309844A2 (en) 2024-01-24
EP4309844A3 true EP4309844A3 (en) 2024-03-27

Family

ID=58544940

Family Applications (2)

Application Number Title Priority Date Filing Date
EP23214443.6A Pending EP4309844A3 (en) 2016-04-13 2017-04-10 Manually operated machine tool with a cover device
EP17717141.0A Active EP3442747B1 (en) 2016-04-13 2017-04-10 Portable power tool having a covering device

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP17717141.0A Active EP3442747B1 (en) 2016-04-13 2017-04-10 Portable power tool having a covering device

Country Status (8)

Country Link
US (1) US11878384B2 (en)
EP (2) EP4309844A3 (en)
JP (2) JP2019513570A (en)
KR (1) KR102300412B1 (en)
CN (1) CN109070305B (en)
AU (1) AU2017248586B2 (en)
DE (1) DE102016106782A1 (en)
WO (1) WO2017178443A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11858106B2 (en) 2019-08-08 2024-01-02 Black & Decker Inc. Power tools and power tools platform
US20220331927A1 (en) * 2021-04-16 2022-10-20 SlurryMonster, LLC Detachable grinding tool
USD1021596S1 (en) * 2024-01-04 2024-04-09 Ningbo Deyan Technology Co., Ltd. Grinding disc

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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2314022A1 (en) * 1975-06-12 1977-01-07 Outiperret Retracting guard for grinding wheel - has fixed and moving halves, moving half swings back when wheel rotates
DE202005009030U1 (en) * 2005-06-09 2005-08-25 Festool Gmbh Power hand sander has a clip fastening protective guard to cover the operating area of the sanding plate
DE102008059585A1 (en) * 2008-11-28 2010-07-01 Josef Breitsameter Suction apparatus for grinders, has grinding material, which is surrounded by exhaust hoods, where exhaust hoods have circumferential boundary with supporting lining and spring-elastic element
DE102010033602A1 (en) * 2010-08-06 2012-02-09 Mafell Ag Grinding system for workpiece, has electrical grinding machine with base plate stimulable to working movements, auxiliary plate releasably connected with base plate, and connecting device for auxiliary plate integrated into base plate
DE102012111987A1 (en) * 2012-12-07 2014-06-12 Flex-Elektrowerkzeuge Gmbh Hand held grinding machine

Also Published As

Publication number Publication date
DE102016106782A1 (en) 2017-10-19
JP2022050454A (en) 2022-03-30
KR102300412B1 (en) 2021-09-08
US20190118329A1 (en) 2019-04-25
AU2017248586B2 (en) 2022-02-03
AU2017248586A1 (en) 2018-10-04
EP3442747A1 (en) 2019-02-20
CN109070305B (en) 2021-10-01
EP3442747B1 (en) 2024-01-03
JP7366987B2 (en) 2023-10-23
US11878384B2 (en) 2024-01-23
CN109070305A (en) 2018-12-21
WO2017178443A1 (en) 2017-10-19
KR20190005829A (en) 2019-01-16
JP2019513570A (en) 2019-05-30
EP4309844A2 (en) 2024-01-24

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