Hilti Aktiengesellschaft

Thomas Sperrfechter

Tilo Dittrich

Norbert Heeb

Gerhard Ehmig

Jens Neumann

Franz B&uuml;chel

Markus Frommelt

Mario Grazioli

Peter Bruggmueller

Mario Scalet

Chafic Abu Antoun

Dominik Schmidt

Wolfram Hahn

Peter Stauss-Reiner

Stefan Bönig

Markus Woerner

Franz Büchel

Riccardo Morel

Thorsten Bartz

David Meier

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.

Setting tool

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.

The invention relates to a drive-in device, comprising a drive-in piston, guided in a cylinder, for driving a nail member into a workpiece, and a combustion chamber arranged above the drive-in piston, said combustion chamber being Tillable with a combustion gas, wherein the combustion chamber has a bottom that is adjustable along an axis, wherein the bottom has a groove that extends in the circumferential direction and has an inserted seal which bears in a radial direction against a rigid combustion-chamber wall, wherein a front surface, in the axial direction, of the seal protrudes in the direction of the axis from a terminating plane of the groove.

Drive-in device having an adjustable combustion chamber

A combustion-operated setting tool () for driving in fastening elements, includes a combustion chamber (), a ventilator (), and a motor () for driving the ventilator (). The motor () is mounted in a receptacle () of a motor-supporting member () and is supported at least at one of its axial ends () by an annular damping element () at a wall portion () defining the receptacle (), with an annular recess () arranged at the circumference of the annular damping element ().

Combustion-operated setting tool

A setting tool for driving fastening elements in a constructional component includes piston stop device for braking the setting piston, and is located at an end region of the hollow chamber of the piston guide in which the setting piston is displaceable, and has a damping element supported against a bottom, a stop element for the setting piston and adjoining the damping element in a direction of the hollow chamber, and an inertia body cooperating with the stop element and displaceable in a direction parallel to a longitudinal extent of the setting piston between first and second stops both of which are connected with the stop element and a distance between which, in a direction parallel to the longitudinal extent of the setting piston, is greater than a length of the inertia body in a same direction by length of a decoupling path.

A combustion-operated setting tool for driving fastening elements in a constructional component includes a device () for adjusting setting energy applied to a setting piston () axially displaceable in a guide space () of a piston guide (). The adjusting device () has a separation member () adjustably arranged between the receptacle () and the guide space () of the piston guide () and dividing the combustion chamber () in a first sub-chamber () arranged between the receptacle () and the separation member () and a second sub-chamber () arranged between the separation member () and the guide space () of the piston guide (), the separation member () having a plurality of through-openings () for controlling flow of the combustion gases into the guide space () of the piston guide (), with an active opening cross-section of at least a portion of the through-openings () changing dependent on an adjustable position of the separation member ().

An explosion-operated power tool including a housing () having a cylindrical cavity () and a piston chamber () for receiving a drive piston () and communicating with the cavity (), a breech bottom () located opposite the cavity () and fixedly secured at a predetermined distance from the housing (), and a sealing sleeve () located in the cavity () of the housing () and displaceable axially away from the breech bottom () and toward the breech bottom () for enabling, respectively, a sidewise feeding of a catridge () for positioning the catridge between the breech bottom and the sealing sleeve () and for securing the catridge between the breech bottom () and the sealing sleeve ().

Explosion-operated power tool

A combustion-operated working tool having a housing body (), which has a cylindrical recess () and a piston chamber () connecting therewith for receiving a piston (); an impact plate (), which is arranged opposite to and at a distance to the cylindrical recess () and which can be displaced towards and away from the housing body (), and a packing sleeve () arranged inside and elastically mounted, projecting out of the cylindrical recess ().

Combustion&#x2014;operated working tool, in particular a setting tool for fastening elements

A propellant magazine for a propellant-operated setting tool and including a pocket foil () having a plurality of recessed, spaced from each other, pockets () for receiving each a propellant (), a cover foil () unreleasably connected with the pocket foil () for closing the pockets (), and an electrically conducting strip () associated with each pocket () and having at least one contact point ().

Propellant magazine for a propellant-operated setting tool and a propellant-operated setting tool

A piston holder for a drive piston () of a setting tool and having a circumferential adjusting surface () inclined toward a central axis () thereof so that a diameter of the adjusting surface () increase toward a rear, with respect to a setting direction () of the setting tool, end of the drive piston (), with the piston holder including contact elements () engageable with the adjusting surface (), and a spring () for biasing the contact elements into engagement with the adjusting surface ().

Holder for a drive piston of a setting tool

The present invention relates to a propellant charge magazine for setting tools and a setting tool for driving fasteners into a substrate. The propellant charge magazine of the invention comprises a housing () with an internal housing space for receiving a magazine strip with propellant charges (). At least one output opening () for inserting and extracting the magazine strip () is arranged on the housing. A first space () for receiving a rolled up magazine strip () is provided on the propellant charge magazine () and a second space () in contact with the first space () via an opening () and for accommodating part () of the magazine strip () that is re-introduced into the propellant charge magazine () is provided on the propellant charge magazine ().

Propellant charge magazine for a setting tool

A holder for a drive piston ( ) of a setting tool, and including a return element ( ) having a first end ( ) that applies pressure to the drive piston ( ), and a second end ( ) spaced from the first end ( ), and axial and radial stop elements ( ) fixedly securable in the setting tool and against which the second end ( ) of the return element ( ) is displaceable and elastically deformed upon displacement of the drive piston ( ) in the setting direction ( ).

A piston holder for a drive piston of a setting tool and including at least one clamp member ( ) that is constantly non-rigidly pressed against a circumference of the drive piston ( ), and elements for supporting the at least one clamp member for an eccentric movement in a plane in which a central axis ( ) of the drive piston ( ) is located.

A piston holder for a drive piston ( ) of a setting tool and having a carrier ( ) for two expansion legs ( ) for frictionally receiving the drive piston ( ) therebetween, with the carrier ( ) being fixedly secured in the setting tool.

Growing community of inventors

Grüsch, Switzerland

Thomas Sperrfechter