C&e Fein Gmbh

Mechaless Systems Gmbh

Bernd Mayer

Gerd Reime

Juergen Blickle

Olaf Klabunde

Fabian Bek

Egbert Spiegel

Ralf Seebauer

Joachim Clabunde

Christoph Maier

Peter Langer

Tobias Hokenmaier

Thomas Burkhardt

Jürgen Blickle

Michael Kaufmann

Martin Adamczyk

Norbert Woecht

Reiner Zebisch

Marco Schweitzer

Rudi Brueckmann

Anatoli Pankraz

Adrian Vogt

Eberhard Schumacher

Simon Frey

Wolfgang Dürnegger

An electric motor of an AC-operated, handheld power tool, with a stator that has multiple windings that are accommodated in a laminated stator core and are electrically insulated therefrom with basic insulation, in which stator a rotor is supported so as to be rotatable about an axis of rotation, wherein the rotor has a rotor shaft on which a laminated rotor core with a multiplicity of permanent magnets is held, which laminated rotor core is electrically insulated from the rotor shaft, characterized in that the stator is enclosed by a motor housing that is electrically insulated from the windings of the stator, and in that a supplementary electrical insulation is formed between the motor housing and the rotor shaft.

Electric motor for a handheld power tool

An impact screwdriver having a housing includes an impact mechanism including a hammer interacting with an anvil for driving a tool, wherein the hammer is arranged on a drive shaft so as to be axially movable and preloaded in the axial direction, and wherein the hammer is driven by the drive shaft via a driver and is preloaded counter to the force of a spring element in order to trip and to transmit a rotary impulse to the anvil when a particular rotation angle is exceed, wherein the hammer and the anvil are mounted in a manner electrically insulated from one another and are connected to a voltage source, and wherein a sensor is provided for monitoring a current flow between the hammer and anvil during contact thereof for determining a contact duration between the hammer and anvil.

Impact screwdriver

The invention discloses a connector rack for an electric motor, in particular for an electronically commutable motor having a plurality of exciter windings for a power tool, having at least one electronic mounting board, on which a plurality of contact carriers is provided for electrically contacting the exciter windings.

Electric motor having electrical connector rack

An optoelectronic measuring system comprises at least two transmission light sources that emit time-sequentially clocked, phased light. A compensation light source is controlled independently of the transmission light sources. A receiver receives the light radiated by the transmission light sources, and the compensation light source converts them into an electrical received signal. At least two evaluation units evaluate the received signal and generate one control signal each. At least two transmission paths each comprise a transmission light source, an evaluation unit and a clock generator. The clock generator generates the clock for the transmission light sources and for the evaluation unit. The evaluation units each generate a control signal. A control unit generates a compensation control signal from the control signals, with which the compensation light source is controlled and supplied. The evaluation unit generates a clock-synchronous control signal for the transmission light source from the received signal.

Optoelectronic measuring system with a compensation light source

A method for measuring the transmit time of light, in particular for cameras. A first light signal is clocked by a first clock controller, input into a light system and reflected back to a receiver photodiode, which determines a reception signal as a result of the first light signal. A further light signal clocked by a further clock controller inputs the photodiode at an angle to the first light signal and is mixed at the photodiode with the first light signal to form a common reception signal, which is filtered with a filter whose frequency response corresponds to the frequency of the clock difference to form a filter signal, the first and further clock signals are also mixed in a mixer to form a mixed signal and the phase shift between the mixed signal and the filter signal is used to determine the transit time of light.

Method for measuring the propagation time of light

The invention discloses a device for cutting through an adhesive bead of a vehicle pane, in particular a windshield, having a motor-driven winding-up device that comprises a coil for winding up a cutting wire in a working direction for cutting through the adhesive bead, the winding-up device being provided with a strain relief for the cutting wire which allows the cutting wire to be withdrawn from the winding-up device in a sense opposite to the working direction.

Device for cutting through the adhesive bead of panes fixed by bonding

Growing community of inventors

Ellwangen, Germany

Bernd Mayer