Husqvarna Ab

Fredrik Vadsten

Mikael Racov

Kjell Jacobsson

Bernt Käller

This invention relates to a device for a portable tool, such as a brush cutter or the like, comprising a shaft tube () that via a shaft tube securing means is connected to a drive unit (). The shaft tube securing means comprises a first sleeve shaped element () enclosing an inner end of the shaft tube () and a second sleeve shaped element () arranged between the first sleeve shaped element () and a surrounding tube shaped recess () in the drive unit (). The sleeve shaped element () is provided with one or several portions () co-operating with an abutment surface () in the tube shaped recess () in order to limit the turning movement of the shaft tube () with respect to the drive unit () when being influenced by overloads.

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Gränna, Sweden

Fredrik Vadsten