Robert Boschgmbh

Hawera Probst Gmbh + Co.

Harald Schindler

Gerhard Meixner

Bernhard Moser

Andreas Strasser

August Haussmann

Immanuel Werner

Hans-Peter Meyen

Stefan Holst

Hans-Ulrich Muetschele

Ulrich Muetschele

Juergen Schlipf

The invention is based on a hammer drill and/or chisel hammer, having an impact mechanism unit, an impact mechanism housing and at least one damping unit. The invention proposes that the damping unit is arranged on the impact mechanism housing along a main extension direction of the impact mechanism unit.

Hammer drill and/or chisel hammer

A hand power tool has a tool holder, and a blocking device for the tool holder, the blocking device being connectable with the tool holder and provided with a key unlockable blocking body which secured the blocking device from undesired withdrawal. When the blocking body is connected with the tool holder it blocks the tool holder from insertion of a tool.

Blocking device for tool holder of hand power tool and hand power tool

A drilling tool and, in particular, a rock drill for the creation of breaches in concrete or masonry for the use of drill hammers is proposed, which is configured as a cross drill bit having four cutting fins. In order to optimize drilling capacity, the drilling tool is provided with a cross drilling head which merges in one piece into a conveyor spiral matched to the drill head. A purpose-specific cutting element facing serves to optimize the drilling capacity.

Rock drill

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Stuttgart, Germany

Harald Schindler