Hilti Aktiengesellschaft

Claus Osselmann

Peter Hellmann

Helmut Burger

Lutz Troeder

Stefan Groer

Thomas Naumann

A receiving housing for a hand-held power tool includes a first housing part () having an opening (), a board () with electronic component () arranged in the first housing part () at a distance (A) from the opening (), and a second housing part () for closing the opening () and forming, together with the first housing part (), a receiving space (), with the second housing part () having at least one sleeve section () an axial length (L) of which at least corresponds to the distance (A) between the board () and the opening ().

Receiving housing for a hand-held power tool

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

A process and a circuit ( ) for regulating the speed of an electric motor ( ) having a high speed (N ) to at least one additional lower speed (N , N , N ), whereby, in a first prioritized step, depending on a preselected speed (N , N ), the regulation of the speed to a lower effective motor voltage (Ueff) has an upper limit, and in a second step, depending on the torque (M) needed for the regulation to this preselected speed (N , N ), the effective motor voltage (Ueff) is regulated within the limited range.

Growing community of inventors

Kaltenberg, Germany

Claus Osselmann