EP 4045231 A1 20220824 - HAND-HELD POWER TOOL
Title (en)
HAND-HELD POWER TOOL
Title (de)
HANDWERKZEUGMASCHINE
Title (fr)
OUTIL ÉLECTRIQUE PORTATIF
Publication
Application
Priority
- EP 19203810 A 20191017
- EP 2020078041 W 20201007
Abstract (en)
[origin: WO2021073960A1] A control method for a hand-held power tool comprises the steps: of driving a striking mechanism with an electric motor, wherein an exciter piston of the pneumatic striking mechanism is driven periodically by the electric motor and a striking piston of the striking mechanism is coupled to the exciter piston via a pneumatic chamber; detecting the acceleration of a machine housing along a striking direction of the striking piston in different phases of the movement of the exciter piston; and controlling a rotational speed of an electric motor according to the detected acceleration in the different phases.
IPC 8 full level
B25D 11/12 (2006.01); B25D 11/00 (2006.01)
CPC (source: EP US)
B25D 11/005 (2013.01 - EP US); B25D 11/125 (2013.01 - EP US); B25D 2250/095 (2013.01 - US); B25D 2250/131 (2013.01 - EP US); B25D 2250/201 (2013.01 - EP US); B25D 2250/221 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3808506 A1 20210421; EP 4045231 A1 20220824; US 11904448 B2 20240220; US 2023021949 A1 20230126; WO 2021073960 A1 20210422
DOCDB simple family (application)
EP 19203810 A 20191017; EP 2020078041 W 20201007; EP 20781588 A 20201007; US 202017760675 A 20201007