EP 2002939 A9 20090520 - ELECTRIC POWER TOOL
Title (en)
ELECTRIC POWER TOOL
Title (de)
ELEKTRISCHES WERKZEUG
Title (fr)
OUTIL ELECTRIQUE
Publication
Application
Priority
- JP 2007057581 W 20070404
- JP 2006104591 A 20060405
Abstract (en)
[origin: EP2002939A2] An electric power tool "A" operates a working part 5 by repeating rotation of a motor 4 in a normal direction and in a reverse direction one or more times. The motor 4 includes a brushless motor. Sensors H for detecting a position of a rotor 15 are provided on the motor 4 so as to be advanced by an electrical angle of 30°±¸°from an intermediate position between respective stator teeth 16 in a direction of the normal rotation of the rotor 15. A control part 20 for controlling the rotation of the motor 4 controls a driving signal of the motor 4 based on the results of detection by the sensors H. Moreover, the control part 20 selects a detection signal of the sensors H so that relation between the rotor 15 and the detection signal of the sensors H is equivalent in either of the normal rotation and the reverse rotation of the rotor 15.
IPC 8 full level
B25F 5/00 (2006.01); E04G 21/12 (2006.01); H02P 6/06 (2006.01); H02P 6/08 (2016.01); H02P 6/16 (2016.01); H02P 6/22 (2006.01)
CPC (source: EP KR NO US)
B25B 25/00 (2013.01 - KR); B25F 5/02 (2013.01 - EP NO US); E04G 21/12 (2013.01 - NO); E04G 21/122 (2013.01 - EP US); E04G 21/123 (2013.01 - EP KR US); H02P 6/22 (2013.01 - EP KR NO US); Y10S 388/937 (2013.01 - EP NO US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2002939 A2 20081217; EP 2002939 A4 20100602; EP 2002939 A9 20090520; EP 2002939 B1 20151007; AU 2007236662 A1 20071018; AU 2007236662 B2 20110804; BR PI0710092 A2 20110802; BR PI0710092 B1 20200924; CN 101415527 A 20090422; CN 101415527 B 20111005; DK 2002939 T3 20151123; JP 2007276042 A 20071025; JP 4961808 B2 20120627; KR 101435218 B1 20140828; KR 101459997 B1 20141107; KR 20080108113 A 20081211; KR 20140098183 A 20140807; NO 20084153 L 20090105; NO 338472 B1 20160822; RU 2008143369 A 20100510; RU 2440233 C2 20120120; TW 200800725 A 20080101; TW I405647 B 20130821; US 2009160373 A1 20090625; US 2012160364 A1 20120628; US 8198839 B2 20120612; US 8378600 B2 20130219; WO 2007116914 A1 20071018; ZA 200807905 B 20091230
DOCDB simple family (application)
EP 07741017 A 20070404; AU 2007236662 A 20070404; BR PI0710092 A 20070404; CN 200780011857 A 20070404; DK 07741017 T 20070404; JP 2006104591 A 20060405; JP 2007057581 W 20070404; KR 20087024176 A 20070404; KR 20147017252 A 20070404; NO 20084153 A 20081002; RU 2008143369 A 20070404; TW 96110736 A 20070328; US 201213413837 A 20120307; US 29601107 A 20070404; ZA 200807905 A 20080915