Andreas Stihl Ag Co. Kg

Andreas Stihl Ag & Co.

Ralf-Rainer Kemmler

Johannes Menzel

Günter Wolf

Helmut Lux

Andreas Bähner

Helmut Schlessmann

Andreas Guip

Markus Keller

J&uuml;rgen Steinmaier

Tobias Wurster

Helmut Schleβmann

Harald Decker

A piston for a two-cycle engine having a piston head and a piston wall in which are disposed wrist pin eyes. At least one undercut is formed between the underside of the piston head and the wrist pin eyes at a distance from the piston head. The undercut extends from the interior of the piston toward the piston wall. A respective thickened portion is provided in at least one region of the piston that is rotationally shifted about the longitudinal axis of the piston by 90&#xb0; relative to one of the wrist pin eyes. The thickened portion is disposed at a distance below the piston head and extends into the interior of the piston.

Piston for a two-cycle engine

A tubular handle for a manually guided implement, especially a power chain saw or the like, is provided. The handle has an essentially circular cross-section and at least one mounting portion for fixing the handle to the implement. In the area of the mounting portion, the circular cross-section is flattened to form an at least approximately planar abutment portion, beyond which a circular cross-sectional portion is retained. The abutment portion is provided for fixing the tubular handle to the implement.

Tubular handle for a manually guided implement

A portable work apparatus, especially a motor-driven chain saw ( ), has a drive unit which is provided with a handle housing ( ). The handle housing ( ) includes an extension ( ) which extends in the longitudinal direction of the work apparatus from a rearward handle ( ) on the side facing away in the longitudinal direction from a guide bar ( ) forward to the side facing toward the guide bar ( ). The handle housing ( ) is connected via antivibration elements to the drive unit. The work apparatus has a forward handle tube ( ), which extends over the work apparatus transversely to the longitudinal direction and is attached with an end ( ) to the free end of the extension ( ) and with the other end ( ) in the area of the rearward handle ( ). At least one of the ends ( ) of the handle tube ( ) is fixed via an antivibration element ( ).

Portable work apparatus

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Schwaikheim, Germany

Ralf-Rainer Kemmler