Hilti Aktiengesellschaft

Hilti Aktiengesellchaft

Norbert Welte

Uwe Gerold

Robert Jakob

Thorsten Sauer

Norbert Heeb

Norbert Pfister

Dionys Schalbetter

Johann B&uuml;chel

Norbert Wohlwend

Sybille Renner

Joachim Keck

The invention relates to a method for operating a hand-held working device (), which comprises a data acquisition unit () in which actuations of the trigger switch and accelerations of the working device () are captured. In order to further simplify and/or improve the operation of the hand-held working device, it is monitored within a limited period of time after actuation of the trigger switch whether an acceleration of the working device () exceeds an acceleration threshold in order to detect trouble-free ignitions and/or ignition problems during the operation of the working device ().

Method for operating a hand-held working device

The invention relates to a work apparatus for setting fastening elements in a substrate, with a fuel container and with a dosing device, through which the fuel is fed from the fuel container into a combustion chamber in which a flammable mixture is ignited, for setting a fastening element, and with a temperature sensor. In order to prevent undesired malfunctioning in the operation of the work apparatus or to reduce the incidence of such malfunctioning, the work apparatus comprises a container temperature sensor and a dosing temperature sensor.

Work apparatus for setting fastening elements

A method of configuring power tool electronics in a hand-held power tool () having sensor means () for acquiring measurement data, a control unit () for processing measurement data and for controlling power tool functions, and a data transmission unit (), includes transmitting data between the data transmission unit () and an evaluation location () by means of a mobile wireless network, with the power tool electronics being awakened from a quiescent mode () and activated at a time stored as a time parameter in a control program, retrieving a configuration file provided by the evaluation location () by the data transmission unit () via the mobile wireless network, and checking the response received from the mobile wireless network to determine whether or not it contains a new configuration file. If a configuration file was received, the parameters contained in the configuration file are implemented () in the control program for the power tool electronics. The power tool electronics is then returned to the quiescent mode () again.

Method of configuring power tool electronics in a hand-held power tool

A setting tool including a piston guide () for guiding the drive piston () of the tool, a bolt guide (), and a buffer member () located in the guide bore () of the piston guide () between the sealing element () of the drive piston () and the bolt guide () and surrounding the drive piston stem (), with the guide bore () of the piston guide () having at least one stop shoulder () having a stop surface facing in the setting direction, and the buffer member () having at least one mating shoulder () having a facing in a direction opposite the setting direction, mating surface cooperating with the stop surface of the stop shoulder () of the guide bore ().

Setting tool

A portable setting tool includes a housing ( ), a guide tube ( ) for guiding the fastening elements and connectable with the housing and having a side cut-out through which the fastening elements are fed into the guide tube ( ), and a feeler ( ) extendable into the guide tube ( ) at a location opposite the cut-out ( ) of the guide tube ( ) and having, at an end thereof extendable into the guide tube ( ), an end surface ( ) providing for displacement of the feeler ( ) in a direction transverse t a longitudinal axis ( ) of the guide tube ( ) upon being acted upon by a fastening element, and an adjusting rim ( ) adjoining the end surface ( ) and forming, with a longitudinal axis ( ) of the guide tube ( ), an acute angle (&agr; ) opening in a direction toward a mouth opening of the guide tube ( ) with the adjusting rim providing for displacement of the feeler ( ) in the transverse direction upon being acted upon by an object displaceable along the longitudinal axis ( ) of the guide tube ( ).

Portable setting tool for fastening elements

A setting tool is formed of a housing ( ) and an axially displaceable bolt guide ( ) situated in and extending out of the leading end of the housing. A protective cap ( ) is detachably arranged on the leading end region of the housing ( ) and prevents abrasion of the housing ( ) under conditions prevailing at the construction site and thus prevents wear on the housing ( ).

A setting tool for driving nail-shaped attachment elements into a hard structural component, including a housing (1), a guide cylinder (8) located in the housing (1), a drive piston (7) axially displaceable in the guide cylinder (8) and having a driving surface (74), a spring-biased lever-shaped resetting member (1) pivotable in a plane extending parallel to a setting direction and engageable with the driving surface (74), and a device for displacing the resetting member (1) out of a plane of axial projection of the driving surface (74) into a release position of the resetting member.

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Klaus, Austria

Norbert Welte