Hilti Aktiengesellschaft

Markus Woerner

Tilo Dittrich

Ulrich Rosenbaum

Norbert Heeb

Thomas Sperrfechter

Uwe Popp

Peter Stauss-Reiner

Disclosed is an apparatus for welding a weld stud to a substrate, comprising a welding gun which includes a casing and a stud holder for the weld stud, further comprising a gas container and a gas line for conducting gas from the gas container to the stud holder, the gas container being supported by the welding gun.

Welding apparatus

The invention relates to a drive-in device, comprising a drive-in piston, guided in a cylinder, for driving a nail member into a workpiece, and a combustion chamber arranged above the drive-in piston, said combustion chamber being Tillable with a combustion gas, wherein the combustion chamber has a bottom that is adjustable along an axis, wherein the bottom has a groove that extends in the circumferential direction and has an inserted seal which bears in a radial direction against a rigid combustion-chamber wall, wherein a front surface, in the axial direction, of the seal protrudes in the direction of the axis from a terminating plane of the groove.

Drive-in device having an adjustable combustion chamber

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Hergensweiler, Germany

Markus Woerner