公开(公告)号：US12088290B2

公开(公告)日：2024-09-10

申请号：US17918487

申请日：2021-04-20

Applicant: Hilti Aktiengesellschaft

Inventor： Christian Koschel ,  Christian Ruff ,  Stefan Schwarz ,  Georg Fürfanger

IPC: B25F5/02 ,  B24B23/02 ,  H03K5/24 ,  H03K17/96

CPC classification number: H03K17/962 ,  B24B23/028 ,  B25F5/02 ,  H03K5/24

Abstract: A method is provided for actuating a hand-held machine tool including a drive device, with a control device for actuating the drive device and at least two capacitive sensor elements operatively connected to the control device being provided. The method includes the following method steps of determining an electrical charge of the first and second sensor element comparing the determined first electrical charge with a defined first threshold value and the determined second electrical charge with a defined second threshold value; enabling the actuation of the drive device and/or defined activation of the drive device via the control device when a predefined condition exists between the determined first electrical charge of the first sensor element and the determined detected second electrical charge of the second sensor element. A machine tool for carrying out a method of this kind is also described.

公开(公告)号：US12176894B2

公开(公告)日：2024-12-24

申请号：US17918969

申请日：2021-04-20

Applicant: Hilti Aktiengesellschaft

Inventor： Christian Koschel ,  Christian Ruff ,  Stefan Schwarz ,  Georg Fürfanger

IPC: H03K17/955 ,  H03K17/96

Abstract: A method is provided for operating a hand-held machine tool including a drive device, with a control device for actuating the drive device and at least two capacitive sensor elements operatively connected to the control device being provided. The method includes the following method steps of determining a first and second electrical charge of the first and second sensor element comparing the determined first electrical charge with a defined first threshold value and the determined second electrical charge with a defined second threshold value which differs from the first threshold value; enabling, via the control device, the actuation of the drive device when the first electrical charge is greater than the defined first threshold value and/or the second electrical charge is greater than the defined second threshold value. A machine tool for carrying out a method of this kind is also described.