Andreas Stihl Ag Co. Kg

Andreas Stihl Ag & Co.

Maximilian Eberhardt

Günter Wolf

Georg Becker

Klaus-Martin Uhl

Johannes Menzel

Joachim Hoffmann

Christina Wedel

Jurgen Erath

Georg Maier

Wolfgang Weissert

Jan Kurzenberger

Ulrich Kapinsky

Wolfgang Luithardt

Philipp Neumann

Benjamin Frey

Oliver Gerstenberger

Ralf Tuckermann

G&uuml;nter Wolf

Andreas Guip

Markus H&uuml;sges

Sven Keller

J&uuml;rgen H&auml;berlein

Ralf Steidinger

Rebekka Helfen

Gerhard Pfleiderer

Jürgen Háberlein

Rolf Ademes

Patrick Schiauch

Jens Heine

Christian Ante

Jürgen Bernert

Markus H&auml;gele

Uwe Fries

A garden and/or forestry system has a hand-held gardening and/or forestry processing apparatus, and an assistance device, which is formed separately from the gardening and/or forestry processing apparatus and which is designed to support a user in operation of the gardening and/or forestry processing apparatus. The assistance device has a user interface, by which the assistance device is controllable by user inputs. The hand-held gardening and/or forestry processing apparatus has a user-actuable operator control element for user inputs to the user interface.

Garden and/or forestry system

A work apparatus has at least one handle () and a drive motor (). The handle () is connected to said drive motor () via at least one anti-vibration element (). The anti-vibration element () is held on a first housing part and coacts with a second housing part. To achieve good damping, the anti-vibration element () includes a damping section () having an annularly-shaped wall () which expands in the direction of the second housing part.

Work apparatus

A chain saw includes a guide bar for a saw chain, a housing, a sprocket wheel cover, and a stud fixed on the housing for threadably fastening the sprocket wheel cover and the guide bar. The free thread end of the stud has a maximum usable screw-in depth (t) for a nut. A stop for the sprocket wheel cover having a stop surface as well as a support surface for contact engaging the stop surface are provided. In the mounted state of the guide bar, a distance (a) remains between the stop surface and the support surface. The support surface contact engages the stop surface when the guide bar is removed and the nut is tightened and screwed onto the studs to a stop screw-in depth. The stop is configured in such a manner that the maximum usable screw-in depth (t) is greater than the stop screw-in depth.

Chain saw

A handheld work apparatus includes a drive motor () to drive a tool and at least one handle () as well as at least one anti-vibration element () that includes a coil spring (). The coil spring () is operatively connected to the handle () at one end and with the drive motor () at the other end. The anti-vibration element has a tear-off guard () which extends through the anti-vibration element (). A centering element () is arranged on the tear-off guard () to avoid, in a simple manner, that the tear-off guard moves radially outwards.

Handheld work apparatus

A sprocket cover arrangement for a hand-held chain saw has a housing and a sprocket cover that has an opening and is connected to the housing. At least one stud bolt having a first end secured to the housing and having a second end that is a free threaded end is provided. The free threaded end projects through the opening of the sprocket cover to an exterior side of the sprocket cover when the sprocket cover is positioned in an operating position on the housing. A nut is screwed onto the free threaded end of the at least one stud bolt on the exterior side of the sprocket cover so as to secure the sprocket cover on the housing. The nut is secured captively, rotatably and with play in the opening of the sprocket cover.

Sprocket cover arrangement for a hand-held chain saw

A protective cover of a hand-held cut-off machine has a cover member having an interior. At least two injection nozzles for spraying a cooling liquid into the interior are arranged on the cover member. A supply line for supplying the cooling liquid to the at least two injection nozzles is provided. A bow is arranged outside of the cover member. The supply line has a line section that extends from a first injection nozzle to a second injection nozzle through the bow.

Protective cover for a hand-held cut-off machine

A carburetor having a carburetor body in which an intake channel portion is formed. At least one fuel opening opens out into the intake channel portion. Pivotably mounted in the intake channel portion is a butterfly valve that in a completely opened position divides the intake channel, in the region of the butterfly valve, into a mixture channel and a feed channel, so that in the completely opened position of the butterfly valve, flowing into the feed channel is combustion air having a fuel content that is less than the fuel content in the mixture channel. Provided in the intake channel portion is at least one partition section that extends between the feed channel and the mixture channel. The partition section is formed on the carburetor body.

Carburetor

A protective cover for a cutting wheel of a hand-held cut-off machine driven by an internal combustion engine has a circumferential wall and two opposed sidewalls adjoining the circumferential wall. The circumferential wall and the two sidewalls are a monolithic component made of cast light metal. The circumferential wall in a circumferential direction has at least over sections thereof a first integral thicker portion. The two sidewalls are thinner than the first integral thicker portion. Preferably, the protective cover is made of diecast magnesium.

A portable handheld edge cutter () has a cutterhead () fixed to a guide tube (). Two wheels () are attached to the cutterhead (). The cutterhead () includes a gear unit mounted in a gear housing (). A first wheel () is rotatably journalled on a first end () of the gear housing (). On the opposite-lying end () of the gear housing (), a cutting knife () is mounted and is rotatably driven by the output shaft () of the gear unit. In order to achieve a simple assembly of the edge cutter () and to protect the gear housing () against wear, the second wheel () is mounted between the gear housing () and the cutting knife () and that the two wheels () are journalled coaxially to the output shaft ().

Edge cutter

The invention relates to an operating medium tank () for a drive unit (), especially for an internal combustion engine () of a portable handheld work apparatus. The tank () has a fill opening () and a output opening () in the housing wall () of the tank. According to the invention, at least one base () having a lug () is formed as one piece from the housing wall () in order to configure the tank so as to be operationally safe and easy to assemble. The tank () can be fixed with the aid of the lug () so as to be form-tight and separable on a receptacle () of the drive unit ().

Tank for holding an operating medium

The invention is directed to an adjusting device for a throttle pull of an internal combustion engine for a portable handheld work apparatus. A pull wire ( ) of the throttle pull acts on the carburetor ( ) of the engine. The carburetor ( ) is attached to the inlet of the engine with a spacer ( ) disposed therebetween. A tension piece ( ) of the adjusting device is pivotally journalled on the spacer ( ) by a bolt. The pull wire ( ) lies with a segment thereof on the outwardly pivotable arm of the tension piece ( ). The position of the tension piece can be adjusted with the adjusting screw ( ). The adjusting screw can be screwed out of the pivot arm axially in the direction toward a support. The tension piece ( ) is configured as one piece with the bolt ( ) and is securely held with a form-tight holding arrangement in the axial direction of the bolt ( ). The adjusting device is cost-effective and provides for a reliable and precise adjustment.

Adjusting device for a throttle pull of an internal combustion engine

A manually guided implement having an internal combustion engine and a carburetor for supplying the engine with a fuel/air mixture is provided. A combustion air stream is drawn in through the carburetor by the engine. A warming medium heated up by the engine can be passed along the outer surfaces of the carburetor separate from the combustion air stream.

Manually guided implement having an internal combustion engine

An air filter housing is provided for an intake air filter for a carburetor of an engine. A clean air receiving chamber is formed in the filter housing and is delimited by a filter element. Opening into the clean air receiving chamber is an intake opening that connects the air filter to the intake channel of the carburetor. A hood-like deflection bowl covers the intake opening in the clean air receiving chamber. The peripheral wall of the deflection bowl has a communicating window disposed transverse to the intake channel and serving for flow connection to the clean air receiving chamber. The communicating window opens into a compensation chamber that is separated from the clean air receiving chamber and communicates therewith via a channel.

Air filter housing having a deflection bowl

An internal combustion engine has a reciprocating piston moving in a cylinder. A crank shaft is mounted in the interior of the crankcase. A connecting rod connects the piston to the crankshaft. The crankcase has a venting device for pressure compensation of the interior of the crankcase. The venting device has a venting line having a channel extending in a rotary component of the engine.

Growing community of inventors

Esslingen, Germany

Maximilian Eberhardt