Hilti Aktiengesellschaft

Thomas Bader

Thomas Hofbrucker

Matthias Keith

Markus Looser

Horst Rahmsdorf

Gerd Daubinger

Aaron Wiedner

Hans-Christian Donner

Torsten Tussing

Michael Brandner

Thomas Mahler

Matthias Doberenz

Jerome Jaromin

Hüseyin Cicekci

Sören Schöpke

Christian Laudensack

A power tool, in particular a chipping hammer, containing a first and second side handle and a tool housing having an interface for releasably receiving and holding a first and second rechargeable battery, wherein a side-handle axis extending through the first and second side handles is arranged substantially perpendicularly to a working axis extending through the tool housing. The power tool contains a protective apparatus for protecting the first and second rechargeable batteries, the protective apparatus having an internal volume for at least partially receiving the first and second rechargeable batteries.

Power tool having a protective guard-bracket device for rechargeable batteries

A rail has a guide surface on which the locking block is guided in a bearing manner between a position locking the bar, in which the toothed side engages in the toothed long side, and an unlocked position, in which the toothed side is not engaged with the toothed long side. A spring pretensions the locking block into the locking position. The guided side and/or the guide surface have a flank that is inclined with respect to the bar axis such that the locking block is forced in the direction of the bar in the event of a movement along the bar axis.

Side handle

The screwdriving power tool includes a hollow spindle () rotatably supported in the tool housing () and driven by a motor (), a clutch () that rotatably connects and disconnects the hollow spindle () with and from the motor (), respectively, in engagement and disengagement positions of the clutch (), a screwing-in spindle () connected with a chuck () for a working tool () and connected with the hollow spindle () for a joint rotation therewith and for an axial displacement relative thereto, and a percussion mechanism () for applying a pulsed axial force to the screwing-in spindle (), with the clutch () being brought into its engagement position by the screwing-in spindle () by being displaced against a biasing force of the clutch springs (), and being locked in its engagement position.

Screwdriving power tool with an axially operated percussion mechanism

A depth stop device for a screw driving tool includes an adjusting ring (), a connection sleeve () for rotatably mounting the adjusting ring () on the nose member () of the screw driving tool housing (), a substantially sleeve-shaped depth stop () displaceable in an axial direction relative the connection sleeve () by rotation of the adjusting ring (), and at least partially elastic locking element () engageable in the axial direction with both the adjusting ring () and the connection sleeve (), the locking element being also adapted to secure the adjusting ring () on the connection sleeve () in a rotational direction (D).

Depth stop device

A drill adapter for a power screwdriver and including a locking device for releasably securing the drill adapter () on the support region () of the screwdriver () and having a push-on sleeve () supportable on the support region () and at least one engagement member () for releasably securing the push-on sleeve () on the support region, and an element for actuating the drive clutch () of the screwdriver () via the tool spindle () and projecting into a receiving space (), which is partially limited by the push-on sleeve () and is open at one side, and having an axial stop () for engaging the tool spindle (), with the at least one engagement member () projecting, in its locking position, beyond an inner surface () of the push-on sleeve () for establishing an axial formlocking connection between the push-on sleeve () and the support region () of the screwdriver () and which provides for actuation of the drive clutch () with actuating element.

Drill adapter for a power screwdriver

A holding device for fastening elements which is securable to screw-driving power tool and includes at least two clamping members () which abut a stem () of the fastening element in a release position of the clamping members and which are displaceable upon an application of a force thereto into their release position, with the clamping members () having at least one contact region which forms, at least in the support position of the clamping members (), a front stop of the holding device () in a drive-in direction () of the power tool ().

Holding device for a fastening element

A depth stop device () for use with a hand-held screw driving tool () includes an axial element () for driving a screw bit () and a sleeve element () having a longitudinal bore () in which the axial element () is at least partially received and an exit opening () extending sidewise from the longitudinal bore (). The exit opening () is limited by a deflection surface () which is stretched over an intersection plane (SE) and has a geometrical center (M) that forms an origin of a spatial system of coordinates. The intersection plane (SE) forms with a tangential axis (T) of the spatial coordinate system that extends perpendicular to both the longitudinal (L) and radial (R) axis of the coordinate system, an acute angle (&#x3b1;).

A hand-held power tool including a housing () having a handle (), and a holding device () having a catch element () with a free end () for suspending the power tool, with the free end () having a main axis (K) intersecting a normal live (N) that extends transverse to the tool plane which is defined by the plane of the handle and the operational direction of the tool, and passes through the center of gravity (S) of the tool.

Hand-held power tool with a holding device

A device switch () for a hand-held tool, particularly for a screw drill or drilling machine, having a control device () which is arranged in a switch housing (), a trigger () which is movably supported at the switch housing (), the rotational speed of a driving motor () of the hand-held tool being controlled by the control device () depending on the position of the trigger () relative to the switch housing (), and a pressure increasing arrangement () with a contacting area () on a contacting element () which makes pressing contact with a contact region () of a mechanical resistance element () in a trigger pressure position of the trigger () between a zero load position and a full load position, the displacement resistance of the trigger () being increased by this mechanical resistance element (). The contact region () is arranged outside the switch housing ().

Device switch for electric hand-held tools

A screw driving tool comprises a housing ( ), a drive ( ), a drive spindle ( ), a torque coupling ( ) between the drive ( ) and the drive spindle ( ), as well as an adjustment mechanism disposed between the free end of the drive spindle ( ) and the torque coupling ( ), the adjustment mechanism is used for adjusting the torque transmitted using the torque coupling ( ). The adjustment mechanism has at least one prestressable spring element ( ) cooperating with the torque coupling; a compression sleeve ( ) that is displaceable parallel to the axis of the drive spindle ( ) and cooperating with the spring element ( ); a control sleeve ( ) arranged coaxially with the compression sleeve ( ) and cooperating with the compression sleeve ( ); a rotatable adjustment sleeve ( ), and a plurality of rotationally mounted planet wheels ( ) cooperating in a form locked manner with the control sleeve ( ) and inner teeth ( ) of the adjustment sleeve ( ). The housing ( ) extends between the control sleeve ( ) and the adjustment sleeve ( ) and the planet wheels ( ) are rotationally mounted in passage openings in the housing ( ).

Screw driving tool

A screw driving tool including a housing ( ), a hollow spindle ( ) rotatably supported in the housing ( ) with a possibility of a limited axial displacement relative thereto, a screw-in spindle at least partially extending in the hollow cylinder ( ), connected thereto for joint rotation therewith, and supported for a limited axial displacement relative thereto, an impact mass ( ) for displacing the screw-in-spindle ( ) in a screw-in direction, a drive motor ( ) for rotating the screw-in spindle ( ), and a clutch ( ) located between the hollow spindle ( ) and the drive motor output shaft ( ) for transmitting rotational movement to the hollow spindle ( ).

Growing community of inventors

Landsberg, Germany

Thomas Bader