Hilti Aktiengesellschaft

Ralf Meixner

Tobias Koeniger

Oliver Ohlendorf

Bernd Ziegler

Johannes Stempfhuber

Markus Holubarsch

Dieter Profunser

Stefan Schmid

Hans-Joerg Rieger

Holger Cecchin

Guenther Veik

Michael Göttlinger

Katharina Marsiglia

David Klingen

Julian Harbaum

Udo Hauptmann

Jens Kondratiuk

Thomas Thanner

Ralf Greitmann

Manfred Jakob

Manfred Schallert

Michael Bischof

A power tool, which includes a receiving device having at least one receiving element and a power supply unit connectable to the power tool, for example a rechargeable battery, which includes a connecting device, the connecting device having at least one contact element, the receiving device being designed to receive and hold the connecting device, so that the at least one receiving element and the at least one contact element are connectable to each other for establishing an electrical connection. A damping element is provided on at least one contact element, whereby the at least one contact element is movable in a first direction and a second direction as well as relative to the particular receiving element, so that it is possible to counteract a relative movement between the contact element and the particular receiving element when the contact element and the receiving element are connected to each other.

Spring contact on a rechargeable battery

A shock absorbing device for a rechargeable battery, in particular for supplying a machine tool with electrical energy, wherein the rechargeable battery includes a housing for accommodating at least one energy storage cell. The shock absorbing device includes at least one shock absorbing element for absorbing shock energy exerted on the housing of the rechargeable battery.

Drop protection system for rechargeable batteries

A power tool includes a receiving device having at least one first and second power consumption element. A power supply unit connectable to the power tool includes a connecting device having at least one first and second power output element, the receiving device being designed to receive and hold the connecting device, so that the power consumption elements and the power output elements are connectable. Both the first and second power consumption elements have a positive pole as well as a negative pole, and both the first and second power output elements have a positive pole as well as a negative pole. The positive pole of the first power consumption element and the positive pole of the second power consumption element as well as the negative pole of the first power consumption element and the negative pole of the second power consumption element are positioned at a distance from each other in at least one first and second direction.

Offset contacts on a rechargeable battery

A plug-in coupling () for making electrical contact with an electric drive () which is included in a hand-held power tool () and has a battery unit () which is to be accommodated by the hand-held power tool (). The plug-in coupling () has at least one electrical contact plate () which is to be connected to the hand-held power tool (), and at least one electrical contact spring pair () which corresponds to the contact plate (), wherein the contact spring pair () is to be arranged on the battery unit () and is to be slid onto the contact plate () in the sliding-on direction (AR) and is to be withdrawn therefrom in the withdrawal direction (AB), wherein in the state in which contact is made (ZK) the contact plate () and the contact spring pair () form a frictionally locking latching-connection pairing.

Plug-in coupling for a battery unit

A hand-held power tool, in particular a hammer drill or a combination hammer, is disclosed. The hand-held power tool includes a tool housing which has a receiving recess designed to replaceably receive a storage battery or a power supply unit. The hand-held power tool has an electric drive motor with a cooling fan. The tool housing has a first vent portion which is located in the receiving recess and through which a volume flow generated by the cooling fan can be guided.

Hand-held power tool, fanless storage battery

A hand-held power tool, in particular a hammer drill or combination hammer, is disclosed. The power tool includes a tool housing which has a receiving recess designed to replaceably receive a storage battery or a power supply unit. The hand-held power tool further includes an electric drive motor having a cooling fan and a first vent portion which is located on the tool housing outside the receiving recess and through which a volume flow generated by the cooling fan can be guided. The tool housing has a second vent portion which is different from the first vent portion and which is located in the receiving recess and through which the volume flow generated by the cooling fan can be at least partially guided.

Handheld power tool, fanless power supply unit and tool system

A rechargeable tool battery (), in particular for supplying a hand-held power tool (), including a rechargeable tool battery housing (), inside which a secondary cell battery () having a nominal cell voltage (UN) is situated, the rechargeable tool battery () including a rechargeable battery DC-DC converter (), integrated into the rechargeable tool battery housing (), which is electrically connected to the secondary cell battery (), and is designed for raising the nominal cell voltage (UN) to a supply voltage (UV) which is tappable at a rechargeable tool battery terminal () of the rechargeable tool battery ().

Rechargeable tool battery, mains-operable hand-held power tool, and tool system

A production method for a tool socket includes forming a hollow spindle An elongated recess is provided in the wall. The spindle includes unalloyed or low-alloyed steel grades. An insert includes a high-alloyed tool steel. The insert has a pedestal that is complementary to the recess and it also has a rib. The insert is placed into the hollow spindle in such a way that the pedestal rests in the recess and the rib projects into the interior of the spindle. The pedestal is soldered into the recess at a temperature that is above the Ac3 temperatures of the steel grades employed. The combined structure is cooled and then undergoes a heat treatment in an atmosphere containing sufficient carbon to carburize the hollow spindle but not sufficient to carburize the insert. The heat treatment of the combined structure is carried out at a temperature between 800&#xb0; C. and 950&#xb0; C. The combined structure is cooled down in a salt bath or liquid bath subsequent to the heat treatment.

Production method for a tool socket

A tool socketfor a hand-held power tool has a tubular main bodyand a dust cap. The main bodyhas an end facethat is adjoined by a cylindrical or prismatic outer surface. As seen in the insertion direction, the dust capconsecutively has a sealing ring, a middle sectionand a seat. As seen in the insertion direction, the sealing ringis arranged in front of the end faceof the main body. The seathas a cylindrical or prismatic inner surfacethat is in contact with the outer surfaceof the main body. The middle sectionhas a conical inner surfacewhose inner diameterdecreases in the insertion directiondown to the inner diameterof the seat

Tool socket

A hand-held power tool for driving a cutting or grinding working tool () includes a running gear () having a roller () and a support section () for supporting the roller (), and a locking device () for locking the roller () against rotation relative to the support section ().

Hand-held power tool

A hand-held power tool for driving a working tool () includes a drive belt (), first and second arms () longitudinally displaceable relative to each other and carrying respective deflection rollers () of the drive belt (), a belt tensioning device () located between the first and second arms () and including a spring () preloaded against the first arm (), and a displaceable pressure piston () located between the spring () and the second arm ().

Growing community of inventors

Germaringen, Germany

Ralf Meixner