Hilti Aktiengesellschaft

Donato Clausi

Manuel Gut

Marco Balter

Nikolaus Hannoschoeck

Thomas Kinkeldei

Markus Hartmann

Albert Binder

Michael Wierer

Klaus-Peter Bohn

Dario Bralla

Carsten Peters

Serhey Khandozhko

Maria Zivcec

Christoph Boehm

Klaus Raggl

A portable power tool has a tool holder, a motorand an electro-pneumatic striking mechanism. The striking mechanism includes an excitation piston, a striker, a pneumatic chamberfor coupling the strikerto the excitation pistonand an anvilwhich is arranged in the striking directiondownstream of the strikerand is provided for transmitting a blow of the striker to the tool. The anvil is hollow. The hollow interior spaceis closed in the striking directionand counter to the striking direction

Portable power tool

In a control method for a hand-held power tool, a striking mechanism is driven with an electric motor, wherein an exciter piston of the pneumatic striking mechanism is driven periodically by the electric motor and a striking piston of the striking mechanism is coupled to the exciter piston via a pneumatic chamber. The method includes detecting the acceleration of a machine housing along a striking direction of the striking piston in different phases of the movement of the exciter piston; and controlling a rotational speed of an electric motor according to the detected acceleration in the different phases.

Hand-held power tool

A core drill bitincludes a tubular shaft, a mounting platformprovided on a proximal end of the tubular shaftfor mounting the core drill bit on a power tool, and an annular cutting sectionprovided with abrasive cutting segmentsarranged at a distal end of the tubular shaft. A first transponderis provided at the distal end of the tubular shaft. A repeateris provided comprising a second transponderat the proximal end of the tubular shaft, an antennafacing the first transponder, and a wired connectionbetween the antennaand the repeater

Core drill bit

A core drill bitincludes a tubular shaft, a mounting platformprovided on a proximal end of the tubular shaftfor mounting the core drill bit on a power tool, and an annular cutting sectionprovided with abrasive cutting segmentsarranged at a distal end of the tubular shaft. The core drill bitfurther includes a transponderand a slitin the tubular shaft. The slitforms a slit antennafor the transponder

The invention relates to a hand-held machine tool for setting a nail, having a safety mechanism which can be actuated by a user and a button which can be actuated to trigger a setting of the nail. A mixture of flammable gas and air can be ignited in a combustion chamber. A piston is movably arranged in the combustion chamber in order to be accelerated in the setting direction by the combustion gases. There is a stamp on the piston for driving the nail. A compressor for compressing the air in the combustion chamber is directly connected to the combustion chamber via a channel. A valve which connects the channel or the combustion chamber to the environment is opened between the actuating of the safety mechanism and the actuating of the button.

Control method for hand-held machine tool

Growing community of inventors

Buchs, Switzerland

Donato Clausi