Hilti Aktiengesellschaft

Emanuel Kurth

Tilo Dittrich

Norbert Heeb

Karl Franz

Arno Mecklenburg

Chafic Abu Antoun

Joerg Stamm

Marc Putzi

Alain Erni

Fabio Luongo

Michael Pulfer

Urs Mueller

Roland Schneider

An apparatus driving fastening elements has an energy store, a transmission element movable along a setting axis in a driving direction between a starting position and a setting position for transmitting energy from the energy store to the fastening elements, the transmission element having a rear end in the driving direction, the energy store having a container and a piston, the container defining a cylinder axis and the piston being movable along the cylinder axis in the container, the piston closing off a partial volume of the container, and gas in the closed-off partial volume forming a gas spring, the apparatus having a force transmission device transmitting a spring force of the gas spring to the rear end of the transmission element, the rear end of the transmission element being arranged behind the piston in the driving direction when the transmission element is in the starting position.

Driving-in apparatus

A tool having a working piston that moves along a working axis, a drive, for driving the working piston along the working axis, the drive having an electrical capacitor, a squirrel-cage rotor arranged on the working piston and an excitation coil, wherein current flows through the coil during rapid discharge of the capacitor and generates a magnetic field that accelerates the working piston, the tool having a frame of a soft-magnetic and electrically conducting material surrounding the excitation coil and extending in a circumferential direction with respect to the working axis, the frame having one or more at least partial interruptions, which extend over a significant part of a radial extent of the frame with respect to the working axis.

Working tool

A hand-held setting tool for driving fastening elements in a workpiece includes a drive-in ram () displaceable in the guide () in which a receptacle () for the fastening elements () is located and which has a feeding opening () for the fastening elements () and located in a region of the receptacle (), and a displacement device () for displacing the fastening elements () into the receptacle () and controlled by the drive-in ram ().

Hand-held setting tool

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Malans, Switzerland

Emanuel Kurth