Hilti Aktiengesellschaft

Stefan Groer

Klaus Bertsch

Oliver Koslowski

Markus Forstner

Peter Hellmann

Wolfgang Beck

Claus Osselmann

Egon Koenigbauer

Michael Fuchs

Egon KÖNIGBAUER

A method to control a power tool (), especially a handheld core drilling machine, includes a drive () to drive a tool () and a control unit () for when a workpiece (W) is being processed. The method encompasses the following method steps: The power tool includes a drive () to drive a tool () and a control unit () to control at least the rotational speed of the drive.

Intuitive, adaptive drilling function

According to one aspect of the application, a device for driving a fastening element into a substrate has an energy-transfer element for transferring energy to the fastening element. The energy-transfer element can move preferably between a starting position and a setting position, wherein the energy-transfer element is located, before a driving-in procedure, in the starting position and, after the driving-in procedure, in the setting position. According to another aspect of the application, the device comprises a mechanical-energy storage device for storing mechanical energy. The energy-transfer element is then suitable preferably for transferring energy from the mechanical-energy storage device to the fastening element.

Driving device

A multifunction handheld tool machine having an at least partially axially percussive tool receptacle (), a safety coupling () disposed in the power line between the tool receptacle and an electrical motor (), a hand-guided housing and an ATC safety module () with a rotational sensor () sensitive to an angular displacement. The ATC safety module () is connected to an axial displacement sensor () and, in the event of exceeding an axial limit value (), the binary control signal () is suppressed by the axial displacement.

Safety module for a multifunctional handheld tool

Growing community of inventors

Graben, Germany

Stefan Groer