Hilti Aktiengesellschaft

Markus Holubarsch

Stefan Schmid

Ralf Meixner

Tobias Koeniger

Bernd Ziegler

Markus Hartmann

Ferdinand Kristen

Dieter Profunser

Michael Göttlinger

Katharina Marsiglia

David Klingen

Julian Harbaum

Stefan Hammerstingl

Johannes Stempfhuber

Axel Fischer

Eduard Pfeiffer

Michael Weber

Ferdinand Kirsten

Benjamin Lederle

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 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on the battery unit () and is to be slid onto the contact plate () in the sliding-on direction (AR) and is to be withdrawn therefrom in the withdrawal direction (AB), wherein in the state in which contact is made (ZK) the contact plate () and the contact spring pair () form a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 percussion mechanism contains a guide tube, an exciter piston, a hammer, a pneumatic chamber for coupling the hammer to the motion of the exciter piston, a striker, and a seat for the striker. The hammer has a striking point, defined by a striking surface of the striker when the striker lies against the seat. A check valve has an outlet opening and a closing mechanism for closing the check valve against an air flow from the interior of the guide tube. The outlet opening is arranged in such a way that the outlet opening is closed by the hammer during striking operation and otherwise is open.

Percussive power tool

A hand-held power tool has a tool socket, a drivefor driving the tool socket, and a housingin which the driveis accommodated. A stationary partof the driveis connected by means of at least one detachable clamped connectionto at least one element, whereby the elementis the housingor another stationary part of the drive. The clamped connectionhas a cylindrical pocketin the one stationary part, a bushingthat is made of plastic and that is inserted into the cylindrical pocket, and it has a screwthat is screwed into the bushing

Hand-held power tool with detachable clamped connection

The handheld power tool has a tool socket to hold a chiseling tool on a working axis and a striking mechanism that acts upon the tool in the striking direction. The striking mechanism is arranged in a machine housing. A handle is oriented along a handle axis that is perpendicular to the working axis and that is installed on the machine housing by three suspension assemblies. The second suspension assembly has a lever arm that runs along the handle axis. The first end of the lever arm is attached to a machine housing and to a handle. A guide is attached to the other machine housing and handle. The second end of the lever arm in the guide can be forcibly deflected against a spring along a trajectory that is slanted or perpendicular to the working axis.

Handheld power tool

A side handle () is provided for a handheld power tool (). The user can grasp the side handle () by a grip element (). A ring-shaped clamp is provided for clamping the side handle () onto the handheld power tool (). The clamp () has two ends () that can be joined. A pre-tensioned spring () presses the joinable ends () against a stop () in order to join them under a force that acts in an effective direction (). A release mechanism () is held in a normal position by the force of the pre-tensioned spring () that acts in the effective direction (). Against the force of the pre-tensioned spring () that acts in the effective direction (), the user can deflect the release mechanism () into a release position in order to cancel the force that presses the joinable ends against the stop.

Side handle

Growing community of inventors

Landsberg am Lech, Germany

Markus Holubarsch