Hilti Aktiengesellschaft

Hans Boeni

Alexander Hoop

Roland Schaer

Albert Binder

Christoph Wuersch

Dieter Profunser

Hanspeter Schad

Harald Schmitzer

Peter Brugger

Christoph W&uuml;rsch

Ricardo Teixeira

Beda Meier

Gabor Szacsvay

A handheld power tool, including a tool socket on a drive shaft for purposes of holding a tool, the drive shaft executing a rotating and partially tangentially striking movement using a tangential striking mechanism drivable by a drive. The tangential striking mechanism has an anvil associated with the drive shaft and a hammer associated with the drive, movable with respect to each other so as to strike each other axially when under the effect of the force of at least one first spring, and to strike each other tangentially when the anvil and the hammer are rotated. The hammer has a main mass, and an extra mass that is under the effect of a second spring couplable to the main mass.

Handheld power tool

A control process for an at least partially axially hammering and rotating electric hand-held machine tool () in which an electromagnetic clutch () arranged in the flow of force between an electric motor () and a tool receptacle () is controllably connected to computing device () connected to sensors (), wherein the clutch () is repeatedly alternately opened and closed in at least one process step controlled by the computing device ().

Process for controlling an axially hammering and rotating electric hand-held machine tool

A pneumatic percussive mechanism having an axially reciprocating percussive loaded percussion piston ( ), wherein a non-contacting magnetic field sensitive sensor ( ) is arranged radial thereto. The percussion piston ( ) features at least externally ferromagnetic material and has a plurality of axially separated zones ( ) of different magnetic permeability.

Pneumatic percussive mechanism

In the formation of engagement grooves in the shank of a tool for use in a hammer drill or chipping hammer, a matrix or die is divided along a junction plane into two matrix halves. A bore for holding the tool to be punched is formed along the junction plane so that the plane divides the bore in half in its axial direction. Guide openings are formed in the opposite sides of the matrix extending into the bore for receiving punching dies. The matrix halves combine to form these guide openings which are located in the junction plane so that the punching pressure is applied in this plane. The closing pressure for holding the matrix halves together is applied at right angles to the junction plane.

Forming engagement grooves in a tool shank

Growing community of inventors

Buchs/SG, Switzerland

Hans Boeni