US 12,240,084 B2
Power tool device and method
Christoph Dieter, Gomaringen (DE); Moritz Keller, Fellbach (DE); and Peter Seiler, Dornstadt (DE)
Assigned to Festool GmbH, Wendlingen (DE)
Appl. No. 18/000,600
Filed by FESTOOL GMBH, Wendlingen (DE)
PCT Filed Mar. 30, 2021, PCT No. PCT/EP2021/058332
§ 371(c)(1), (2) Date Dec. 2, 2022,
PCT Pub. No. WO2021/244790, PCT Pub. Date Dec. 9, 2021.
Claims priority of application No. 10 2020 207 023.7 (DE), filed on Jun. 4, 2020.
Prior Publication US 2023/0219204 A1, Jul. 13, 2023
Int. Cl. B25B 23/147 (2006.01); B25D 16/00 (2006.01); B25F 5/00 (2006.01)
CPC B25B 23/147 (2013.01) [B25F 5/001 (2013.01); B25D 16/006 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A power tool device comprising a drive unit for a rotational driving of a tool, wherein the power tool device is adapted to detect at least one drive variable during the rotational driving of the tool, wherein the drive variable is the torque acting on the tool and/or a drive variable associated with this torque, and wherein the power tool device is adapted to determine, during the rotational driving of the tool, a change criterion on the basis of the at least one detected drive variable and to change the rotational driving of the tool in response to the detected drive variable satisfying the change criterion, wherein the power tool device is adapted to reduce the rotational driving, terminate the rotational driving and/or change the rotational driving of the tool to pulsed operation in response to the detected drive variable satisfying the change criterion.