Hilti Aktiengesellschaft

Erich Daigeler

Heinz Bisping

Franz Popp

Ferdinand Kristen

Steffen Geiger

Pierre Pallmer

J&uuml;rgen Wieser

Thomas Belz

Claudia Zimmerer

Wolfgang Hausner

Henrik Luessmann

Alois Koelbl

Henrik Lüßmann

Henrik LÜSSMANN

A machine tool includes a tool holder and a pneumatic striking mechanism that includes, on a working axis, an exciter piston, a beater, and a pneumatic chamber disposed between the exciter piston and the beater. The exciter piston is drivable by the motor and includes a pot-shaped base body, a seal ring, and a tube-shaped cladding body. The pot-shaped base body has a lateral wall enclosing the working axis and a collar which protrudes in a radial direction. The tube-shaped cladding body is disposed on the pot-shaped base body surrounding the lateral wall. A groove is defined between the collar and the tube-shaped cladding body and the seal ring is disposed in the groove.

Hand-held machine tool

A method of manufacturing of an expansion sleeve including providing a sleeve blank having axially extending material weaknesses ( ), and forming the longitudinal slots ( ) by tearing open the material weaknesses ( ) by substantially radially expanding same.

Method of manufacturing an expansion sleeve

A fastening element for attaching plate-shaped boards, and including a large-surface clamping member (,) with a hollow-stem (,) projecting from opening in the clamping member (,) with a hollow stem (,) projecting from and having a bore (,) opening in the clamping member (,) for receiving an expansion member (,) for an anchoring member (,); and a plug-shaped member (,) attached to the clamping member (,) with a strap (,) for closing the bore and having a plug-in section (,) with a sealing surface (,) sealing by cooperating with the bore wall and is force-lockingly retained therein, with the plug-in section (,) having at least one recess (,) provided with an undercut and a largest diameter of which corresponds to a diameter of a stem (,) of the expansion member (,) for enabling the closing member (,) to eclipse the shaft (,) of the expansion member (,).

Fastening element for attaching insulation boards

Growing community of inventors

Waal, Germany

Erich Daigeler