US 12,447,571 B2
Method for activating and deactivating a spindle lock in a power tool, and power tool
Michael Lacher, Schwabmuenchen (DE); Stefan Ringler, Schwabmuehlhausen (DE); Roland Schwab, Geltendorf (DE); and Manel Ouni, Augsburg (DE)
Assigned to Hilti Aktiengesellschaft, Schaan (LI)
Appl. No. 18/286,430
Filed by Hilti Aktiengesellschaft, Schaan (LI)
PCT Filed Apr. 12, 2022, PCT No. PCT/EP2022/059675
§ 371(c)(1), (2) Date Oct. 11, 2023,
PCT Pub. No. WO2022/228880, PCT Pub. Date Nov. 3, 2022.
Claims priority of application No. 21170463 (EP), filed on Apr. 26, 2021.
Prior Publication US 2024/0181584 A1, Jun. 6, 2024
Int. Cl. B25F 5/00 (2006.01); B23Q 5/04 (2006.01)
CPC B23Q 5/043 (2013.01) 19 Claims
OG exemplary drawing
 
1. A method for activating a spindle lock in a power tool, the power tool having a tool fitting for receiving a tool, a motor and device electronics, the method comprising the following method steps:
a) carrying out a first rotary movement with the tool fitting of the power tool in a first direction of rotation, the first rotary movement definable by an angle of rotation or a rotational speed, a limit value for the angle of rotation or the rotational speed being stored in the power tool; and
b) activating the spindle lock via the device electronics of the power tool if at least one of the limit values for the angle of rotation or the rotational speed is exceeded;
wherein the first rotary movement is defined by the angle of rotation and a magnitude of the limit value for the angle of rotation is in a range from 1 to 120 degrees.