Andreas Stihl Ag Co. Kg

Andreas Stihl Ag & Co.

Klaus Langhans

Uwe Gaese

Dieter Kremsler

Thomas Stark

Michael Raffenberg

Markus Hittmann

Hans-Georg Wiedmann

Georg Maier

Heiko Rosskamp

Harald Mang

Gerhard Zerrer

Manfred Rabis

Wolfgang Layher

Jochen Kramer

Heinz Hettmann

Kai-Ulrich Machens

Matthias Müller

Tim Gegg

Steffen Joos

Günter Mayer

Markus Zeller

Gerd Densborn

Markus Herzog

Markus Pfeifer

Mario Kuschewski

Kirsten Schellin

Rudolf Dirks

Johann Trumpf

Marcus Stein

Tilman Seidel

Helmut Swistun

Jörg Schütt

Sebastian Hansen

Michael Hocquel

Oliver Schlötzer

Bettina Zitzmann

Michael Vögtle

Christian Schmidt

Klaas Maximilian Heide

Josef Egger

Christoph Hegenbart

Roman Dawen

Heiko Roßkamp

Klaas Heide

Martin Strauss

A backpack sprayer has a carrying arrangement, on which a container for spraying agent is arranged. The container has a filling opening which can be closed by way of a lid. The carrying arrangement has a set-down position, in which the carrying arrangement is set down on a planar, horizontal set-down surface. The spraying agent region of the container is the region which is provided for spraying agent and extends as far as a maximum permissible filling height (max). The spraying agent region has a greatest horizontal inner cross-sectional area (A) in the set-down position. In order to allow simple filling of spraying agent and simple cleaning of the container, it is provided that the container can be opened at the filling opening over at least 60% of its greatest inner cross-sectional area (A).

Backpack sprayer and container for spraying agent for a backpack sprayer

A vacuum device has a motor-driven blower wheel with suction side and with pressure side with pressure channel and blow-out opening. An intake pipe at the suction side has an intake opening and a discharge opening at opposed ends. The intake pipe conveys a suction airflow entraining first and second collected materials. Through the discharge opening the first collected material is discharged from the intake pipe. A blower inlet opening is formed in a wall of the intake pipe. Blower inlet opening, blower wheel, and pressure channel are configured such that second collected material passes through blower inlet opening and blower wheel into the pressure channel for discharge through blow-out opening. The blower inlet opening, in longitudinal direction of the intake pipe, is positioned between discharge opening and intake opening at a first spacing to the intake opening and at a second spacing to the discharge opening.

Vacuum device for collecting light and heavy material

The invention relates to a fuel system of a portable handheld work apparatus driven by an internal combustion engine. The fuel system includes a fuel tank (), a fuel pump, a fuel line () leading from the fuel tank () to the fuel pump and a first suction head () which is disposed at an end () of the fuel line () at the fuel tank. At least a second suction head () is arranged within the fuel tank () and is connected in the fuel line () in series ahead of the first suction head (). The second suction head () has an external suction surface which is formed by a porous covering (). The porous covering () delimits a suction space. A guide is arranged in the suction space which guides the through-passing fuel flow at least approximately along the entire inner surface of the porous covering ().

Fuel system of a handheld work apparatus

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

A protective shield for a trimmer having a cutting head that is rotatable about an axis of rotation and supports a cutting thread that rotates about an axis of rotation with the cutting head and determines a cutting circle, covers at least partially the cutting circle. The protective cover has a base member and a cutting-to-length blade arranged on the base member so as to be positioned circumferentially relative to a cutting circle of the rotating cutting thread. The cutting-to-length blade has a cutting edge that, relative to the axis of rotation of the rotating cutting thread, is arranged in an axially displaced position displaced in an axial direction relative to the cutting circle. A device for axially deflecting the rotating cutting thread out of the cutting circle to the cutting edge is provided.

Protective shield for a trimmer

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.

Implement having adjustable handle

A manually guided blower having a housing in which is disposed a drive motor that rotatingly drives an impeller. The impeller draws in an air stream via an intake opening and conveys the air stream through a discharge opening of the housing. The blower has at least one attachment that can be detachably connected to the housing in the region of one of the openings. The blower has at least one switch that is actuated when the attachment is secured to the opening, whereby the drive motor is in a ready-to-operate state only when the switch is actuated.

Manually guided blower

A portable spray apparatus () is provided to selectively discharge liquid spray medium and solid dust medium with a blower airflow () generated by a blower (). An adaptor () is provided which has at least a channel section () of a liquids channel () for the liquid spray medium and a channel section () of a solids channel () for the solid dust medium. The adaptor () is releasably connected to a supply vessel (). The liquids channel () and the solids channel () open into the blower airflow (). Various built-in positions of the supply vessel () and of the adaptor () are freely selectable relative to each other and to the blower unit () by the operator. In one built-in position, the liquids channel () is connected via its channel section () to an interior space () of the supply vessel () and, in another built-in position, the solids channel () is connected to this interior space () via the channel section () thereof.

Portable spray apparatus

A blower apparatus has a blower housing having a blower intake. A motor-driven blower is arranged in the blower housing and takes in air in a flow direction through the blower intake into the blower housing. A device for mechanical clearing of the blower intake is arranged at the blower intake. The mechanical clearing device is driven in rotation during operation of the blower apparatus.

Blower apparatus

A vacuum arrangement has a vacuum pipe having a vacuum opening facing a ground surface and adapted to pick up from the ground surface a material to be collected. The vacuum pipe conveys the material to be collected into a collecting container connected to the vacuum pipe. The vacuum pipe has a working area located within the area of the vacuum opening. At least one blower nozzle having a blower air exit is arranged such that a blower air flow exiting from the blower air exit is directed onto the ground surface into the working area. The blower air exit and the vacuum opening are positioned at a spacing relative to one another.

Vacuum arrangement for a ground area

A portable sprayer having a backpack to which are secured a blower unit and a supply tank. The blower unit includes a drive motor and a blower driven thereby. The blower unit is mounted on the backpack by at least one anti-vibration element. The supply tank, for example for spray agent, is mechanically separated from the blower unit and is also mounted on the backpack by at least one anti-vibration element. A removable, at least approximately rigid connection element is provided for coupling the supply tank and the blower unit together or for isolating them from one another with respect to vibrations.

Portable sprayer

A portable handheld work apparatus, such as a motorized cultivator () or the like, includes a frame () which extends essentially in the longitudinal direction () of the work apparatus. A drive motor () is fixed at one end () of the frame () and a work tool is driven by this drive motor. The opposite-lying end () includes at least a handle () for guiding the work apparatus during the operation thereof. In order to make possible an ergonomic work posture of the operator, the handle () lies facing away upwardly from the ground surface () in the work position of the motorized work apparatus. The work position is a position in which the work tool lies on the ground surface () to be worked.

Portable handheld work apparatus

A gear head for a manually guided power implement is provided. Part of the tool shaft, which receives a rotatable cutting tool, is embodied as a cylindrical splined shaft having grooves for the positive transmission of torque to the cutting tool. An abutment plate is disposed on the tool shaft and has an abutment surface that extends essentially perpendicular to the longitudinal axis of the tool shaft. A centering cylinder extends through a circular central opening of the cutting tool and has inwardly directed longitudinal ribs that engage in the grooves of these splined shaft. A free end of the centering cylinder is provided with a beveled portion that extends from an outer contour of the cylinder to into the grooves.

Gear head

The invention is directed to a guide tube assembly for a portable handheld work apparatus with a drive motor ( ) mounted at one end ( ) of the guide tube ( ). The drive motor ( ) is connected to a work tool ( ) mounted at one end ( ) of the guide tube ( ) via a drive shaft ( ) mounted in the guide tube ( ). A reinforcing sleeve ( ) is axially inserted into the work tool end ( ) of the guide tube ( ) in order to better introduce engine loads at a flange ( ) of the work tool ( ) into the guide tube ( ). The reinforcing sleeve ( ) projects axially along a part length (L&prime;) of the guide tube ( ) from the flange ( ) into the guide tube ( ).

Guide tube assembly for a portable handheld work apparatus

Growing community of inventors

Winnenden, Germany

Klaus Langhans