Abstract: The invention relates to a power tool including a support arm and a tool member supported at a first end of the support arm, where a drive motor at a second end of the support arm is arranged to power a drive belt that drives the tool member. The support arm comprises a frame member and a cover attached to the frame member, wherein the first end of the support arm further supporting a shield at least partially enclosing the tool member. A distance member is arranged between the frame member and the shield and extends radially at right angles to the drive shaft, wherein a radially outer portion of the distance member is spaced a predetermined distance(s) from the shield.

Abstract: The invention relates to a power tool comprising a support arm (110; 210; 310; 510) and a tool member (120; 220; 320; 520) supported at a first end (111; 211; 311; 511) of the support arm (110; 210; 310; 510), where a drive motor (101; 201) at a second end (112; 212; 312) of the support arm (110; 210; 310; 510) is arranged to power a drive belt (202; 302; 502) that drives the tool member (120; 220; 320; 520). The support arm (110; 210; 310; 510) comprises a frame member (305; 505) and a cover (113; 213; 313) attached to the frame member (305; 505), wherein the first end (111; 211; 311; 511) of the support arm (110; 210; 310; 510) further supporting a shield (121; 221; 321; 521) at least partially enclosing the tool member (120; 220; 320; 520).

Abstract: This invention relates to a flexible intake system for a crankcase scavenged two-stroke internal combustion engine (10) having an additional air supply to its transfer ducts. The intake system comprises a flexible intake duct (22) connecting a fuel supply unit (21) e.g. a carburetor with an engine cylinder (11) and at least one flexible air duct (40) connecting a valve housing (42) for additional air with the engine cylinder. The end portion of the flexible intake duct (22) and at least one air duct (40) is secured to the cylinder by means of a baffle (23) made of a stiffer material than the ducts (22, 40) themselves.

Abstract: This invention relates to a flexible intake system for a crankcase scavenged two-stroke internal combustion engine (10) having an additional air supply to its transfer ducts. The intake system comprises a flexible intake duct (22) connecting a fuel supply unit (21) e.g. a carburettor with an engine cylinder (11) and at least one flexible air duct (40) connecting a valve housing (42) for additional air with the engine cylinder. The end portion of the flexible intake duct (22) and at least one air duct (40) is secured to the cylinder by means of a baffle (23) made of a stiffer material than the ducts (22, 40) themselves.

Abstract: A portable working machine comprising a tool unit (1) with a disc guard and a circular tool (3), and a machine unit (2) with a filter system (10), an internal combustion engine (11) with an engine cylinder (13) with bore (12) having a centre line (30), a crankshaft (14) and a crankcase (15), a fuel tank (17), a muffler (18) with an entrance port (46) provided in the rear side of the muffler and facing an exhaust port (47) of the cylinder, handles (19, 20) controls (21, 22) and supports (23, 24) on the underside of the machine unit for allowing upright positioning of the machine on a flat ground.