Hilti Aktiengesellschaft

Manuel Gut

Albert Binder

Chafic Abu Antoun

Florian Schmid

Michael Wierer

Thomas Kinkeldei

Tilo Dittrich

Donato Clausi

Roland Schaer

Bernhard Winkler

Marco Balter

Dieter Profunser

Jasmin Smajic

Serhey Khandozhko

Alexander Hoop

Peter Hricko

Boeni Hans

Christof Freischlaeger

Hoop Alexander

Lukas Pfarr

Tashari Ter Braack

Hans Böni

Christof Freischläger

A power tool having a tool and a motor, with the motor of the power tool being operated in a speed range from 2,000 to 30,000 rpm and with an inertia of the motor lying in a range from 20·10to 750·10kg·m. In a second aspect, the invention relates to a method for operating a power tool which is operated in a speed range from 2,000 to 30,000 rpm, with an inertia of the motor lying in a range from 20·10to 750·10kg·m. By selecting and specifying a set of parameters which describe characteristics of the motor of the power tool, the power tool can be designed and operated in such a way that a mechanical slip clutch can be dispensed with. The motor parameters 'speed' and “inertia” are selected in particular so that a maximum torque in a transmission of the power tool is always below a specified upper limit.

Power tool and method for operating a power tool

A tool for working a substrate, having a stator and a working piston, which is intended to move relative to the stator along a working axis, and having a drive, which is intended to drive the working piston along the working axis from a starting position onto the substrate, the drive having a stator coil arranged on the stator and being intended to apply electrical current of a first current intensity Ito the stator coil in order to generate a magnetic field which accelerates the working piston relative to the stator, the drive having a piston coil arranged on the working piston and being intended to apply electrical current of a second current intensity Ito the piston coil in order to generate a magnetic field which accelerates the working piston relative to the stator, the second current intensity Ibeing less than the first current intensity I.

Working tool

A tool for working a substrate has a stator and a working piston, which is intended to move relative to the stator along a working axis and toward the substrate or to hit a fastening element, in order to drive the fastening element into the substrate, also having a drive, which is intended to drive the working piston along the working axis onto the substrate, the drive having a piston coil capacitor and a piston coil arranged on the working piston, the piston coil being electrically connectable to the piston coil capacitor in order during rapid discharge of the piston coil capacitor to have a current flowing through it and to generate a magnetic field which accelerates the working piston relative to the stator.

A tool for working a substrate, the tool having a stator and a working piston, which is intended to move relative to the stator along a working axis, also having a drive, which is intended to drive the working piston from a starting position along the working axis to the substrate, the stator having a first electrical stator contact and the working piston having a first electrical piston contact, which slides on the first electrical stator contact and is arranged on a radially outer circumference of the working piston with respect to the working axis.

A tool for working a substrate, the tool having a stator and a working piston, which is intended to move relative to the stator along a working axis, also having a drive, which is intended to drive the working piston from a starting position along the working axis to the substrate, the drive comprising a first piston coil arranged on the working piston and a first stator coil arranged on the stator, and the first piston coil being intended to enter the first stator coil during a movement of the working piston relative to the stator along the working axis.

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

A control method is provided for a hand-held power tool (), which includes a motor () for rotationally driving a tool holder () about a working axis (), including the following steps: detecting a rotary motion of the hand-held power tool () about the working axis (); detecting a rotary or pivoting motion about a transverse axis () extending transversely to the working axis (); triggering a safety function for reducing the torque output of the motor () when the rotary motion about the working axis () exceeds a limiting value, and suppressing the safety function when the rotary or pivoting motion about the transverse axis () is greater than a threshold value.

Control method for a hand-held power tool

A hand-operated rotary power tool and a method of operating the tool is disclosed. The tool has an electric motor for driving a rotary tool, a sensor device for detecting a blockade of the tool and a triggering device, which, in response to a blockade detected by the sensor device, reverses a direction of rotation of the electric motor prior to the blockade for a predetermined duration and immediately following induces the electric motor to again rotate in the direction of rotation.

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Goefis, Austria

Manuel Gut