Husqvarna Ab

Mikael Evergren

Anders Hansson

Tobias Rydholm

Johan Lönn

Per-Arne Järnland

Jonas Bergner

Patrik Sigurdh

Marcus Pettersson

The present disclosure relates to a power tool () driven by an internal combustion engine and comprising a housing () and having a service access interface () for connecting to an internal control unit of the engine during service. The access interface () comprises a connector () and an access interface cable, connecting the connector () to the control unit. The housing comprises an opening (), and a grommet () is provided configured to clamp the access interface cable or the connector (). The grommet () is configured to be moved between an operating position and a service position. In the operating position, the grommet () is located in the opening (), the access interface cable and connector () being fully enclosed in the housing (), and in the service position, the grommet () is located in said notch, the access interface cable or connector () extending through the opening inside the grommet ().

Power tool and grommet

A crankshaft () for a crankcase scavenged two stroke piston engine () is disclosed. The crankshaft () is configured to rotate around a rotation axis (ax) during operation. The crankshaft () comprises a crankpin () configured to move in a crank plane (cp) during operation, and a first and a second counterweight () arranged on either side (S, S) of the crank plane (cp). The first counterweight () has a first outer radius (r) measured from the rotation axis (ax) and the second counterweight () has a second outer radius (r) measured from the rotation axis (ax). The first outer radius (r) is smaller than the second outer radius (r). The present disclosure further relates to a power unit (), a crankcase scavenged two stroke piston engine (), and a hand-held power tool ().

Crankshaft, power unit, two stroke piston engine, and hand-held power tool

Growing community of inventors

Ulricehamn, Sweden

Mikael Evergren