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1. (WO2019026503) POWER TOOL
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Pub. No.: WO/2019/026503 International Application No.: PCT/JP2018/024854
Publication Date: 07.02.2019 International Filing Date: 29.06.2018
IPC:
B25F 5/00 (2006.01) ,B24B 23/02 (2006.01) ,H02P 6/24 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
25
HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; HANDLES FOR HAND IMPLEMENTS; WORKSHOP EQUIPMENT; MANIPULATORS
F
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
5
Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
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
23
Portable grinding machines, e.g. hand-guided; Accessories therefor
02
with rotating grinding tools; Accessories therefor
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
P
CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS OR REACTORS OR CHOKE COILS
6
Arrangements for controlling synchronous motors or other dynamo-electric motors with electronic commutators in dependence on the rotor position; Electronic commutators therefor
24
Arrangements for stopping
Applicants:
工機ホールディングス株式会社 KOKI HOLDINGS CO.,LTD. [JP/JP]; 東京都港区港南二丁目15番1号 15-1, Konan 2-chome, Minato-ku, Tokyo 1086020, JP
Inventors:
吉成 拓家 YOSHINARI Takuya; JP
谷本 英之 TANIMOTO Hideyuki; JP
Priority Data:
2017-14873231.07.2017JP
2017-14873331.07.2017JP
Title (EN) POWER TOOL
(FR) OUTIL ÉLECTRIQUE
(JA) 電動工具
Abstract:
(EN) Provided is a power tool with which it is possible to perform braking in which deterioration and damage of an element are suppressed. In a brake control, a computation unit 21: performs switching control of a combination of any of upper-arm-side switching elements Q1-Q3 and any of lower-arm-side switching elements Q4-Q6 while sequentially switching the elements; and causes a current to flow in a closed loop (a closed loop in the same direction as during driving of the power tool) in order through any of the upper-arm-side switching elements Q1-Q3, a stator coil 6e, any of the lower-arm-side switching elements Q4-Q6, and a first diode bridge 15.
(FR) L'invention concerne un outil électrique avec lequel il est possible d'effectuer un freinage et dans lequel la détérioration et l'endommagement d'un élément sont supprimés. Dans une commande de frein, une unité de calcul (21) : effectue une commande de commutation d'une combinaison d'un élément quelconque parmi des éléments de commutation côté bras supérieur (Q1-Q3) et d'un élément quelconque parmi des éléments de commutation côté bras inférieur (Q4-Q6) tout en commutant séquentiellement les éléments ; et amène un courant à s'écouler dans une boucle fermée (une boucle fermée dans la même direction que pendant l'entraînement de l'outil électrique) dans l'ordre à travers l'un quelconque des éléments de commutation côté bras supérieur (Q1-Q3), une bobine de stator (6e), l'un quelconque des éléments de commutation côté bras inférieur (Q4-Q6) et un premier pont de diodes (15).
(JA) 素子の劣化や破損を抑制したブレーキを行うことの可能な電動工具を提供する。演算部21はブレーキ制御において、上アーム側スイッチング素子Q1~Q3のいずれかと、下アーム側スイッチング素子Q4~Q6のいずれかとの組合せを、順次切り替えながらスイッチング制御し、上アーム側スイッチング素子Q1~Q3のいずれか、ステータコイル6e、下アーム側スイッチング素子Q4~Q6のいずれか、及び第1ダイオードブリッジ15、を順に通る閉ループ(駆動時と同じ向きの閉ループ)に電流を流す。
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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, JO, 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: Japanese (JA)
Filing Language: Japanese (JA)