Hilti Aktiengesellschaft

Christoph W&uuml;rsch

Roland Schaer

Albert Binder

Hanspeter Schad

Wolfgang Zesch

Harald Schmitzer

Alexander Hoop

Hans Boeni

Klaus Dass

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

A hand tool device ( ), for a partially rotationally driven drill tool ( ), including an electronic depth stop ( ) with a sensor ( ) for non-contacting gauging of a distance and a calculator component ( ) for calculating the depth (T) of a drill bit tip ( ) relative to a reference surface ( ), and signaling when a measured value attains a set value (S). The set value (S) can be transmitted into a set value memory ( ) using a single manually operated transfer accept actuation.

Hand tool with electronic depth stop

A hand-held rotary-percussion power tool includes an electrical drive ( ) for generating a torque transmittable to a boring tool used with the power tool for forming blind bores, a hammer mechanism ( ) for applying impacts to the boring tool, control device ( ) for controlling operation of at least one of the electrical drive ( ) and the hammer mechanism ( ), and an electronic depth stop ( ). The depth stop include a sensor ( ) for contactless, distance measuring of a depth of a blind bore, and a computation unit ( ) for generating a signal indicating that a sensed measurement value (M) corresponds to a set value of the depth of the blind bore, and connected with the control device ( ).

Hand held rotary-percussion tool with an electronic depth stop

An explosive powder charge-operated setting tool having a drive piston ( ) for driving a pin-shaped nail ( ) in a constructional component in a single drive-in step, and a control circuit (I) for controlling a setting depth (T) and including control electronics ( ), a set point generator ( ) for setting the setting depth (T), a position-determining sensor ( ) for determining a position of a lower dead point (uTP) of movement of the drive piston ( ), and a regulator ( ) for an automatic adjustment of a motion energy of the drive piston; and a method of controlling the setting depth (T).

Setting tool with a setting depth control

A positioning aid ( ) for a hand tool device ( ) driving tool ( ), in a working direction (A), with a distance measuring system ( ) mounted thereon. The distance measuring system ( ) has at least one distance measuring sensor ( ) for measuring the distance from the distance measuring sensor ( ) to an object ( ), along a line of measurement (M, M&prime;, M&Prime;), and a computing unit ( ) for comparing the measured value with a pre-selected desired value (S) and for producing a signal dependent on the comparison, wherein the line of measurement (M, M&prime;) is oriented at least partially perpendicular to the working direction (A).

Growing community of inventors

Werdenberg, Switzerland

Christoph Würsch

Growing community of inventors

Werdenberg, Switzerland

Christoph W&uuml;rsch

Christoph Würsch