Hilti Aktiengesellschaft

Other

Hilti Akitengesellschaft

Hilti Aktiengellschaft

Tilo Dittrich

Ulrich Schiestl

Iwan Wolf

Norbert Heeb

Gerhard Ehmig

Thomas Sperrfechter

Peter Bruggmueller

Chafic Abu Antoun

Dominik Schmidt

Markus Frommelt

Jens Neumann

Daniel Jung

Peter Stauss-Reiner

Albert Binder

Harald Fielitz

Arno Mecklenburg

Norbert Pfister

Manuel Gut

Florian Schmid

Dierk Tille

Mario Scalet

Emanuel Kurth

Karl Franz

Mario Grazioli

Walter Odoni

Roland Schneider

Stefan Boenig

Jasmin Smajic

Rolf Erhardt

Franz Buechel

Franz B&uuml;chel

Thorsten Sauer

Wolfram Hahn

Stefan B&ouml;nig

Markus Woerner

Marc Putzi

Kai Friewald

Philipp Heinze

Urs Mueller

Riccardo Morel

Edwin Staudacker

Thomas Demharter

Simon Beauvais

Heeb Norbert

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, 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.

The invention relates to a highly dynamic electromagnetic drive in the manner of a Thomson coil with soft-magnetic frame, comprising a first excitation coil () whose winding height is greater than its length, which hence is flat; a soft-magnetic frame () in which the first excitation coil () is arranged and against which it abuts, and which in in the manner of a pot magnet constitutes an open magnetic circuit which includes an outer region (), a bottom () and an inner region (), and which is open on its end face, wherein the first excitation coil at least partly encloses the inner part () of the frame; a short circuit armature () preferably formed hollow cylindrical at least on its side facing the first excitation coil (), which is movably mounted along an axis and which in its stroke starting position dips into the end-face opening of the frame () and thereby at least partly encloses the inner part of the frame (), wherein the frame () entirely or predominantly is formed of a soft-magnetic composite material or one or more sheet stacks, which has a saturation flux density of at least 1.5 T and an effective specific electrical conductivity of not more than 10S/m, and the first excitation coil () and/or the frame () include at least one means for strain relief, in particular in the form of an enclosure in order to at least partly absorb at least the radial forces occurring on the first excitation coil () during an actuating operation vertically to the direction of movement, and wherein the Lorentz force acting on the short circuit armature is used to perform work.

Electrodynamic drive

A setting tool for driving fastening elements into a substrate is provided, the tool comprising a holder for holding a fastening element, a drive-in element, for transferring a fastening element held in the holder into the substrate along a setting axis, and a drive, for driving the drive-in element toward the fastening element along the setting axis, wherein the drive comprises an electrical capacitor, a squirrel-cage rotor arranged on the drive-in element and an excitation coil, which during rapid discharge of the capacitor is flowed through by current and generates a magnetic field that accelerates the drive-in element toward the fastening element, and wherein the setting tool has a means for detecting a temperature of the excitation coil and a control unit which is suitable for controlling an operating sequence of the setting tool in dependence on the detected temperature of the excitation coil.

Setting tool

A setting tool for driving fastening elements into a substrate is provided, the setting tool comprising a holder, which is provided for holding a fastening element, a drive-in element, which is provided for transferring a fastening element held in the holder into the substrate along a setting axis, a drive, which is provided for driving the drive-in element toward the fastening element along the setting axis, wherein the drive comprises an electrical capacitor, which is arranged on the setting axis or around the setting axis.

A setting tool for driving fastening elements into a substrate comprises a holder for holding a fastening element; a drive-in element for transferring a fastening element held in the holder into the substrate along a setting axis; and, a drive for driving the drive-in element toward the fastening element along the setting axis, wherein the drive comprises an electrical capacitor; a squirrel-cage rotor arranged on the drive-in element; and, an excitation coil, which during rapid discharge of the capacitor is flowed through by current and generates a magnetic field that accelerates the drive-in element toward the fastening element, and wherein the setting tool has a control unit, which is suitable for carrying out a fuse discharge of the capacitor during which current does not flow through the excitation coil.

Fastener driving tool

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.

The invention relates to a handheld nail setting device comprising highly dynamic electromagnetic drive in the manner of a Thomson coil with soft-magnetic frame, comprising a first excitation coil () whose winding height is greater than its length, which hence is flat; a soft-magnetic frame in which the first excitation coil is arranged and against which it abuts, and which in in the manner of a pot magnet constitutes an open magnetic circuit which includes an outer region, a bottom and an inner region, and which is open on its end face, wherein the first excitation coil at least partly encloses the inner part of the frame; a short circuit armature preferably formed hollow cylindrical at least on its side facing the first excitation coil, which is movably mounted along an axis and which in its stroke starting position dips into the end-face opening of the frame and thereby at least partly encloses the inner part of the frame, wherein the frame entirely or predominantly is formed of a soft-magnetic composite material or one or more sheet stacks, which has a saturation flux density of at least 1.5 T and an effective specific electrical conductivity of not more than 10S/m, and the first excitation coil and/or the frame include at least one means for strain relief, in particular in the form of an enclosure in order to at least partly absorb at least the radial forces occurring on the first excitation coil during an actuating operation vertically to the direction of movement, and wherein the Lorentz force acting on the short circuit armature is used to perform work.

A tool comprising a drive-in element, transferring a fastening element into a substrate along setting axis by a setting energy E, a drive for driving the drive-in element along the setting axis, the drive comprising a capacitor, a rotor, and a coil, wherein current flows through the coil generating a magnetic field accelerating the drive-in element toward the fastening element, wherein a current intensity Aof current flowing through the excitation coil while discharging the capacitor has a time profile with a rising edge, a maximum current intensity Aand a falling edge, Arising during current rise time &#x394;tfrom 0.1 to 0.8 times Aand during impact time &#x394;tis more than 0.5 times the A, wherein &#x394;tis at least 0.020 ms and at most 0.275 ms and/or the impact time &#x394;tis at least 0.15 ms and at most 2.0 ms.

A setting tool for driving fastening elements into a substrate, comprising a holder for holding a fastening element; a drive-in element for transferring a fastening element held in the holder into the substrate along a setting axis; and a drive for driving the drive-in element toward the fastening element along the setting axis, wherein the drive comprises an electrical capacitor; a squirrel-cage rotor arranged on the drive-in element; and an excitation coil; which during discharge of the capacitor is flowed through by current and generates a magnetic field that accelerates the drive-in element toward the fastening element, wherein the setting tool further comprises a soft-magnetic frame, in which the excitation coil is embedded; and a supporting structure; wherein, at least during the discharge of the capacitor, the supporting structure exerts on the soft-magnetic frame a pretensioning force directed radially inward with respect to the setting axis.

A setting tool for driving fastening elements into a substrate comprises a holder for holding a fastening element; a drive-in element for transferring a fastening element held in the holder into the substrate along a setting axis; and, a drive for driving the drive-in element toward the fastening element along the setting axis, wherein the drive comprises an electrical capacitor, which is arranged on the setting axis or around the setting axis.

A setting tool driving fastening elements, comprising a holder for a fastening element; a drive-in element transferring a fastening element in the holder into a substrate along a setting axis by a setting energy Eof at least 30 J and at most 600 J; a drive for driving the drive-in element toward the fastening element along the setting axis, the drive comprising a capacitor, a rotor on the drive-in element; and, an excitation coil, which during discharge of the capacitor is flowed through by current and generates a magnetic field accelerating the drive-in element toward the fastening element, the drive-in element having a piston diameter dand a piston mass m, and wherein, for d, where a=33 mm, b=6 mmJand n=&#x2153; and/or, for m, where c=20 g, d=30 gJand n=&#x2153;.

The invention relates to a fuel-operated firing device for driving securing elements into a substrate, comprising at least one main combustion chamber for a fuel, a driving piston that can be driven out of the main combustion chamber in a firing direction by expandable gases, and a pre-chamber with which an ignition device is associated and in which a pressure acting on the main combustion chamber can build up prior to a fuel-air mixture being ignited in said main combustion chamber. In order to improve the efficacy and/or functionality during the driving in of securing elements using the fuel-operated firing device, the pre-chamber has at least two venting connections which are mutually spaced in an axial direction and which have passages that can be exposed conjointly in order to facilitate rapid venting of the pre-chamber.

Fuel-operated firing device and method for operating a firing device of this type

The invention relates to a fuel-operated firing device for driving securing elements into a substrate, comprising at least one main combustion chamber for a fuel, a driving piston that can be driven out of the main combustion chamber in a firing direction by expandable gases, and a pre-chamber with which an ignition device is associated and in which a pressure acting on the main combustion chamber can build up prior to a fuel-air mixture being ignited in said main combustion chamber. In order to improve the efficacy and/or functionality during the driving in of securing elements, a detection system is associated with the driving piston, said detection system being connected to an electronic feedback control device for control purposes, in order to detect an initial position of the driving piston prior to a firing operation.

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Feldkirch, Austria

Tilo Dittrich