Andreas Stihl Ag Co. Kg

Markus Hittmann

Christian Barth

Georg Heinzelmann

Klaus Langhans

Uwe Gaese

Cornelius Gindele

Ralf Schenk

Antonio Fattorusso

Reinhard Friedrich

Achim Rethaber

Günter Mayer

Felix Oberhofer

Marcus Stein

Thomas Maier

Johann Winterholler

Matti Schwalk

Kevin Schäffler

A vacuum/blower device is provided with a drive motor and a fan operatively connected to the drive motor and driven by the drive motor. A switching device is provided that switches the vacuum/blower device from a vacuum operation to a blower operation and from the blower operation to the vacuum operation. A suction pipe with an intake opening is provided, wherein, in the vacuum operation of the vacuum/blower device, a suction air flow is sucked in from the intake opening toward the fan in a first flow direction. The switching device switches a rotational direction of the fan, wherein the fan in the blower operation conveys a blower air flow through the suction pipe in a second flow direction that is oriented from the fan toward the intake opening.

Vacuum / blower device

An assembly includes a handheld work apparatus and a support. The support has a holder worn by an operator and a connector arrangement which is held at a first attachment on the holder and on a second attachment on the work apparatus. The connector arrangement is mounted on the second attachment so as to be pivotable about a pivot axis and supports the work apparatus in a rearward direction in relation to the operator and prevents a rearward movement of the work apparatus. The center of gravity of the work apparatus and the first attachment have a spacing (a) to one another measured in a horizontal and lateral direction in relation to the operator. The holder has, at the first attachment, a bracing device for supporting the tilting moment acting on the first attachment by the weight force (F) of the work apparatus because of the lateral spacing (a).

Hand-guided work apparatus and assembly including said hand-guided work apparatus and a support

In a hand-held power tool with a drive motor and a clutch connected to the drive motor and having an output part, the drive pinion is fixedly connected to the output part of the clutch so as to be driven by the drive motor for driving a tool. The drive pinion has a first individual part and a second individual part that are fixedly connected to each other. The first individual part has a toothing and the second individual part is connected to the output part of the clutch.

Hand-held power tool

A blower has a blower tube and a fan unit that conveys an air flow through the blower tube. The fan unit has a fan having a fan axis. The fan conveys the air flow in the direction of the fan axis. The air flow exits the blower tube in an outflow direction at a tube aperture. The handle has on its lower side a grasping point, which in the operating position of the blower, lies on a vertical axis through the blower's center of gravity. The tube aperture has a center axis that is oriented in the outflow direction. So that the forces received by the user at the handle during operation can be made smaller, it is provided for the spacing from the center axis of the tube aperture to the grasping point to be smaller than the spacing from the fan axis to the grasping point.

Blower

A hedge trimmer having a rear handle, a tubular handle and a blade arrangement with at least one cutter bar disposed in a cutter bar plane. An internal combustion engine drives the cutter bars in a reciprocating manner, and has a combustion chamber and a crankshaft mounted in a crankcase so as to be rotatable about an axis of rotation. The combustion chamber faces the rear handle, and the crankcase faces the blade arrangement. The blade arrangement has a longitudinal central axis, and the hedge trimmer has a longitudinal plane that is disposed parallel to the axis of rotation of the crankshaft and transverse to the cutter bar plane. The longitudinal central axis of the blade arrangement lies in the longitudinal plane of the hedge trimmer.

Hedge trimmer

A blade assembly of a hedge trimmer includes at least one cutting blade having cutting teeth. At least one portion of the cutting teeth are configured as protective teeth which, referred to the cutting blade axis, have an inner cutting region and from which an outer protective finger extends. The protective tooth is, referred to its tooth axis, configured unsymmetrically. The protective tooth has a cutting side and an opposite-lying holding side and a cutting edge in the cutting region on the cutting side and a holding edge on the holding side. The protective finger has a forward edge on the cutting side and a rearward edge on the holding side. Starting from the blade axis, the forward edge is inclined to the tooth axis and the rearward edge, starting from the blade axis, is inclined away from the tooth axis.

Blade assembly of a hedge trimmer

The invention relates to an eccentric gear arrangement of a motor-driven, hand-guided hedge trimmer (). The eccentric gear arrangement includes two shearing blades () driven in mutually opposite directions over a displacement path (a). Each shearing blade has a connecting link () as well as an eccentric wheel () having a drive wheel () and two eccentrics (). The eccentric wheel () rotates about a rotational axis (). The two connecting links () lie directly above one another. The two eccentrics () are arranged on the same side of the drive wheel () and engage each in one of the two connecting links (). The two shearing blades () have contact pressure surfaces () in the region of their two connecting links () and are offset with respect to each other in such a manner that they are exposed at least over a portion of the displacement path (a). Two downholders () are provided which act each on one of the assigned contact pressure surfaces ().

Eccentric gear arrangement

An implement comprising a first handle, on which are disposed control elements for the implement. A versatile use of an implement to which is secured a first handle can be provided if the first handle is secured to a tubular section of the implement via a clamp, whereby a handle is detachably mounted on the clamp and the clamp is mounted on the tubular section.

Implement

An implement comprising a first handle, on which are disposed control elements for the implement, and a second handle. The first handle is adjustable between a first operating position for a two-handed operation in which the implement is adapted to be guided by both the first handle and the second handle, and a second operating position for one-handed operation in which the implement is adapted to be guided by the first handle.

Growing community of inventors

Weinstadt, Germany

Markus Hittmann