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1. (WO2017178411) HAND-HELD MACHINE TOOL COMPRISING A DISCONNECTOR
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Pub. No.: WO/2017/178411 International Application No.: PCT/EP2017/058508
Publication Date: 19.10.2017 International Filing Date: 10.04.2017
IPC:
H02H 3/08 (2006.01) ,H02H 3/20 (2006.01) ,H02H 7/085 (2006.01) ,B24B 55/10 (2006.01) ,B24B 7/18 (2006.01)
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3
Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
08
responsive to excess current
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3
Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
20
responsive to excess voltage
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
7
Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
08
for dynamo-electric motors
085
against excessive load
B PERFORMING OPERATIONS; TRANSPORTING
24
GRINDING; POLISHING
B
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
55
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
06
Dust extraction equipment on grinding or polishing machines
10
specially designed for portable grinding machines, e.g. hand-guided
B PERFORMING OPERATIONS; TRANSPORTING
24
GRINDING; POLISHING
B
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
7
Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
10
Single-purpose machines or devices
18
for grinding floorings, walls, ceilings or the like
Applicants:
FESTOOL GMBH [DE/DE]; Wertstr. 20 73240 Wendlingen, DE
Inventors:
WALKER, Nico; DE
TULODZIECKI, Stefan; DE
KRÄMER, Bernhard; DE
Agent:
PATENTANWÄLTE BREGENZER UND REULE PARTNERSCHAFTSGESELLSCHAFT MBB; Neckarstr. 47 73728 Esslingen, DE
Priority Data:
10 2016 106 558.711.04.2016DE
Title (EN) HAND-HELD MACHINE TOOL COMPRISING A DISCONNECTOR
(FR) MACHINE-OUTIL PORTATIVE POURVUE D’UN SECTIONNEUR
(DE) HAND-WERKZEUGMASCHINE MIT EINEM TRENNSCHALTER
Abstract:
(EN) The invention relates to a hand-held machine tool, in particular a sanding machine, comprising a handle element (12) for the user to grip and a processing head (11) which has an electric drive motor (100) for driving a tool holder (19) provided for holding a processing tool (20), the hand-held machine tool having a power supply system (40) for supplying power to the drive motor (100) by means of a cable arrangement (41), via which the drive motor (100) and the power supply system (40) are interconnected. According to the invention, a protection circuit comprising at least one electric disconnector (161, 175) is arranged on the drive motor (100), in order to disconnect a connection between at least one electric cable (L1) of the cable arrangement (41) and a phase (P1, P2, P3) of a field coil arrangement (120) of the drive motor (100), which phase can be supplied with current via said cable (L1).
(FR) L'invention concerne une machine-outil portative, notamment une ponceuse, comprenant un élément poignée (12), permettant à un utilisateur de tenir la machine-outil portative, et une tête d'usinage (11) qui présente un moteur d'entraînement électrique (100) servant à entraîner un porte-outil (19) destiné à maintenir un outil d'usinage (20). La machine-outil portative présente un dispositif d’alimentation électrique (40) servant à alimenter électriquement le moteur d'entraînement (100) par l’intermédiaire d’un ensemble de conducteurs (41) qui établissent une connexion entre le moteur d'entraînement (100) et le dispositif d’alimentation électrique (40). Selon l’invention, sur le moteur d'entraînement (100) est disposé un circuit de protection comprenant au moins un sectionneur électrique (161, 175) servant à séparer une liaison entre au moins un conducteur électrique (L1) de l'ensemble de conducteurs (41) et une phase (P1, P2, P3), pouvant être alimentée en courant par l’intermédiaire dudit ensemble, d’un système de bobine d’excitation (120) du moteur d'entraînement (100).
(DE) Hand-Werkzeugmaschine, insbesondere Schleifmaschine, mit einem Handgriffelement (12) zum Ergreifen durch einen Bediener und einem Bearbeitungskopf (11), der einen elektrischen Antriebsmotor (100) zum Antreiben einer zum Halten eines Bearbeitungswerkzeugs (20) vorgesehenen Werkzeugaufnahme (19) aufweist, wobei die Hand-Werkzeugmaschine eine Bestromungseinrichtung (40) zur Bestromung des Antriebsmotors (100) über eine Leitungsanordnung (41) aufweist, über die der Antriebsmotor (100) und die Bestromungseinrichtung (40) miteinander verbunden sind. Es ist vorgesehen, dass an dem Antriebsmotor (100) eine Schutzschaltung mit mindestens einem elektrischen Trennschalter (161, 175) zum Trennen einer Verbindung zwischen mindestens einer elektrischen Leitung (L1) der Leitungsanordnung (41) und einer über diese Leitung (L1) mit Strom versorgbaren Phase (P1, P2, P3) einer Erregerspulenanordnung (120) des Antriebsmotors (100) angeordnet ist.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)