Hilti Aktiengesellschaft

Hilti Aktiengessellschaft

Hilti Aktiengsellschaft

H Young (operations) Limited

Hilti Atktiengesellschaft

Hilti Aktlengesellschaft

Markus Hartmann

Klaus-Peter Bohn

Bastian Pluemacher

Franz Moessnang

Erich Wisser

Aaron Wiedner

Frank Kohlschmied

Manfred Ludwig

Carsten Peters

Helmut Gassner

Rory Britz

Roland Foser

Eduard Pfeiffer

Reinhard Lins

Susanne Kossian

Christian Daubner

Stefan Dorner

Hermann Beck

Rainer Kussmaul

Christian Koschel

Kai-Uwe Keller

Erwin Manschitz

Matthias Blessing

Udo Hauptmann

Ferdinand Kristen

Reinhard Riedl

Rainer Ontl

Thomas Hofbrucker

Konrad Artmann

Stefan Hammerstingl

Xaver Hanslmeier

Stefan Schmid

Markus Holubarsch

Alexander John

Steffen Geiger

Klaus Hauser

Michael Werner

Martin Noser

Donato Clausi

Maria Zivcec

Ralf Greitmann

Armin Below

Peter Brugger

Thomas Doppelbauer

Tobias Schmid

Philipp Lorenz

Thilo Hammers

Helene Wesseler

Michael Brunner

Guenther Sanchen

Norbert Daam

Helmut Specht

Cord-Henrik Surberg

G&uuml;nter Haas

David Koscheck

Kevin Guo

Georg Fürfanger

Thomas Schaefer

Andreas Dieterle

Laurent-Sebastian Kock

Gerit Knall

Gin-Won Kang

Helene Kaps

Michael Götzfried

Michael Nitzschner

Michael Kurz

Matthias Kuemmerle

Franz Mössnang

Vera Nuebel

Herbert Rehm

Peter Sternberger

Stefan Zamel

Wolfgang Seyfferth

Bernd Ziegler

Jens Neumann

Florian Hurka

Justus Freischle

Mathias Frenzel

Kilian Rehorik

Franz MÖSSNANG

Bastian PLÜMACHER

Franz Mößnang

Helene Wesseler Geb Kaps

Manuel Serf

Michael Biedermann

Oswin Burtscher

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

A hand-held power tool, which has a pneumatic impact mechanism with an impact piston that is able to be moved back and forth along a working axis in a guide tube by a pneumatic spring, is characterized in that a cylindrical surface of the impact piston has a plurality of cutouts that are distributed in the circumferential direction, and the cutouts take up at least 30%, at least 50% and/or at least 70% of the circumference of the cylindrical surface of the impact piston.

Hand-held power tool

A control method for a percussive hand-held power tool () includes the steps: detecting a switching state of an operating button (), detecting a temperature T using a temperature sensor (), activating an electropneumatic striking mechanism () in response to an actuation of the operating button (), an exciter () of the electropneumatic striking mechanism () being moved forward and backward along a working axis () at a repetition rate R, whereby a striker () coupled to the exciter () via a pneumatic chamber () is also moved. If the temperature T is greater than a limiting temperature Tc, the repetition rate R is continuously increased from idle up to a setpoint value (). A duration until reaching the setpoint value () is less than 10 cycles. If the temperature T is less than the limiting temperature Tc, a duration until reaching the setpoint value () is greater than 200 cycles.

Control method for a percussive hand-held power tool

A handheld power toolhas a tool socketto hold a tool along a working axis. A motor-driven, pneumatic striking mechanismhas an exciterwhich is driven by a motor, a strikerthat is coupled to the excitervia a pneumatic chamber, and an intermediate strikerarranged on the working axisin the striking directionbehind the striker. A ventilation openingconnects a cavitysituated between the strikerand the intermediate strikerto the environment. A valvethat closes the ventilation openingis opened when actuated by the intermediate strikerwhen the intermediate strikeris moved into its working position counter to the striking direction

Handheld power tool

The portable power chiseling tool has a tool holder, an electric motor, a striking mechanism and an idle strike catcher. The tool holder can receive a tool and retain it movably on a working axis. The striking mechanism includes an exciter piston, a striker, an anvil and a guide for the anvil. The exciter piston is coupled to the electric motor. The guide guides the anvil on the working axis. The idle strike catcher for the anvil has a conical inner surface facing the anvil. The anvil has an associated end face facing in the striking direction. The end face rests against the conical inner surface when the anvil is in its forwardmost position in the striking direction. The end face of the anvil has a first segment and a second segment in the circumferential direction. The second segment is offset in the striking direction relative to the first segment.

A drill bit for chiselling rock includes an impact face at an insertion end of the drill bit, a hollow shank, where a delivery passage is defined within the hollow shank, and a drill head, where the drill head has a cutting edge, an intake opening, and an intake passage and where the intake passage connects the intake opening to the delivery passage. A first portion of the intake passage which adjoins the intake opening has a first inclination with respect to a drill bit axis, a second portion of the intake passage which adjoins the hollow shank has a second inclination with respect to the drill bit axis, and the second inclination is greater than the first inclination.

Drill for chiselling rock

A drill bit for chiseling stone includes an impact face at an insertion end of the drill bit, a hollow shank, where a delivery passage is defined within the hollow shank, and a drill head, where the drill head has, at a front end of the drill head, a cutting edge, an intake opening, and an intake passage. The intake passage connects the intake opening to the delivery passage. A cross section of the intake passage increases from the intake opening to the delivery passage.

Drill for chiseling stone

Control method for a dust extraction module () for a chiseling tool (), including the following steps: using a fan () of the dust extraction module () to draw in an air flow Q from a certain place of a substrate () being worked by the tool (), using a material detector () to identify the material M at the place of the substrate being worked by the tool (), and adapting the suction power of the dust extraction module () as a function of the identified material M in order to set the air flow Q. The air flow Q is greater than or equal to a rated value Qo in the case of an iron-free mineral material M, whereas the air flow Q is less than the rated value Qo in the case of a material Mcontaining iron.

Control method and dust extraction module

A control method for a borehole flushing module () for a chiseling tool (), includes the steps: Providing fine-grain particles in a dispenser (); ascertaining a material (M) at a location processed by the tool () with the aid of a material detector (); and introducing fine-grain particles at the location of the substrate processed by the tool () when the material detector () ascertains an iron-containing material (M).

Control method and borehole flushing module

A drill bit for chiselling rock includes an impact face at an insertion end of the drill bit, a hollow shank, where a delivery passage is defined within the hollow shank, and a drill head, where the drill head has, at a front end of the drill head, a plurality of cutting faces, an intake opening, and an intake passage. The intake passage connects the intake opening to the delivery passage. The intake opening has a noncircular cross section.

Drill bit for chiselling rock

A power tool () is provided, especially a hammer drill and/or a chiseling hammer drill, including a percussive mechanism () with a percussive element () to generate a percussive pulse onto a tool (), the element being reversibly movable along a longitudinal axis (R) by a magnetic field in order to generate the percussive pulse, and including at least a first and a second coil device () to generate the magnetic field. Each coil device () has at least a first coil ring () with a first radius (R) and a second coil ring () with a second radius (R), whereby the first radius (R) of the first coil ring () is greater than the second radius (R) of the second coil ring (), so that a space (S) is formed, at least in certain areas, between the at least first and second coil rings (), whereby a fluid (L), especially an air stream, that serves to cool the coil device () can flow through the space.

Coil spacing

A control method for a bore-chiseling portable power tool for machining a substrate by a drill bit includes superimposing a periodic striking on the drill bit at an impact rate and a rotating of the tool holder at a rotational speed in a rotational direction, identifying a material of the substrate being machined by the drill bit by a sensor, adjusting the rotational speed and/or the rotational direction to a first rotational speed and a first rotational direction when the identified material is an iron-based material, and adjusting the rotational speed and/or the rotational direction to a second rotational speed and a second rotational direction when the identified material is a mineral material. The first rotational speed is less than the second rotational speed and the first rotational direction is counter-clockwise and the second rotational direction is clockwise.

Control method and portable power tool

A percussion mechanism contains a guide tube, an exciter piston, a hammer, a pneumatic chamber for coupling the hammer to the motion of the exciter piston, a striker, and a seat for the striker. The hammer has a striking point, defined by a striking surface of the striker when the striker lies against the seat. A check valve has an outlet opening and a closing mechanism for closing the check valve against an air flow from the interior of the guide tube. The outlet opening is arranged in such a way that the outlet opening is closed by the hammer during striking operation and otherwise is open.

Percussive power tool

A hand-held machine tool for a striking tool has a motor, an impact mechanism, a spool valve, and a pneumatic chamber. The impact mechanism has an exciter piston moved by the motor, and a hammer coupled to the exciter piston via a pneumatic chamber between the exciter piston and the hammer, and a striker in front of the hammer in the striking direction. In a working position counter to the striking direction, the striker bears on a stop, in a starting position the striker is offset in the striking direction relative to the working position, and in a rest position the striker is offset in the striking direction relative to the starting position. In the starting position, the hammer bearing on the striker closes the spool valve and, in the rest position, the hammer bearing on the striker opens the spool valve.

Striking hand-held machine tool

Growing community of inventors

Mauerstetten, Germany

Markus Hartmann