Husqvarna Ab

Mats Lawenius

Bo P Carlsson

Niklas Sundberg

Anders Reuterberg

A hand-held power tool may include a rotatable work tool with a center, a circumference and a direction of rotation. The power tool may further include a blade guard arrangement arranged to shield a variable part of the rotatable work tool which may include a blade guard and a swiveling cover part attached to the blade guard. In a first position, the swiveling cover part may be positioned such that a first portion of the circumference is covered, following the blade guard, and extending an angular distance after the blade guard, in the direction of rotation. The swiveling cover part may be moveable between the first position and a second position where a cutting operation of the rotatable work tool along the first portion of the circumference occurs. The cover part may be biased towards the first position.

Protection arrangement for a power tool

A two-stroke combustion engine comprising a user-operated throttle control, an adjustable valve arranged to control one or more air intakes of the combustion engine, and a control unit arranged to control a state of the adjustable valve, wherein the combustion engine is arranged to operate in a first idle mode at an idle engine speed below a clutch engagement engine speed when the user-operated throttle control is not engaged, wherein the combustion engine is arranged to operate in a second idle mode at a target engine speed above the clutch engagement engine speed when the user-operated throttle control is engaged and when the engine is not subject to an external load, the control unit being arranged to control the state of the adjustable valve to maintain engine speed at the target engine speed when the engine operates in the second idle mode.

Growing community of inventors

Gothenburg, Sweden

Mats Lawenius