Abstract: The disclosure relates to a handheld work apparatus, wherein the work apparatus includes a housing, a drive motor for driving a tool, and a handle disposed on the housing. A contour is provided on the handle and a counter contour is provided on the housing. In the inoperative position of the handle, a minimum friction torque (M1) which acts about the pivot axis is provided between the handle and the housing. In the operative position of the handle, the contour and the counter contour are operatively connected in such a manner that a further friction torque (M2) which acts about the pivot axis is present between the handle and the housing. The further friction torque (M2) in the operative position is greater than the minimum friction torque (M1) in the inoperative position.

Abstract: A hand-guided motorized working apparatus and an operating device for the apparatus are provided. The operating device has a handle shank configured to be hand-gripped, an operating element receiving region adjoining the handle shank, and an operating unit which acts on the apparatus operation and includes an operating element which is held movably on the operating element receiving region for actuation by a finger of a hand gripping the handle shank, and has a finger rest region extending along an outer side of the operating element receiving region.

Abstract: A saw chain includes connecting links and drive links that are mutually connected by rivets in an articulated manner about rivet axes. The rivets project through at least one rivet opening of one connecting link and through a rivet opening of a drive link. At least one rivet has, on one end face thereof, a depression having a depression edge and a depression base surrounded by the depression edge. The distance of the depression edge from a central plane of the saw chain increases at an increasing radial distance from the rivet axis. The distance (e) of the base from the central plane does not increase at any point of the base at an increasing radial distance from the rivet axis. A greatest distance (a) of the base from the rivet axis corresponds to 50% to 100% of half the core diameter (d) of the rivet.

Abstract: The invention is directed to an arrangement for dissipating heat of an electronic component mounted on a circuit board. The arrangement includes a heat sink for dissipating heat of an electronic component. In order for bottom heat of the electronic component to be dissipated, at least one heat-dissipating heat conducting section is configured on the circuit board, wherein the heat sink is connected in a heat transmitting manner to the heat conducting section of the circuit board. The heat sink by way of a foot section bears directly on the heat conducting section of the circuit board. A recess is configured in the base body of the heat sink, wherein the electronic component lies at least partially in the recess.

Abstract: A riding lawn mower has an internal combustion engine and a muffler with a first housing. The internal combustion engine is connected to the muffler to supply exhaust gases originating from the internal combustion engine to the first housing of the muffler for noise damping of the exhaust gases. A second housing is provided that thermally insulates the first housing of the muffler. The second housing at least partially encloses the first housing of the muffler. The second housing has an exterior side with an emissivity of greater than 0.8.

Abstract: A motorized working apparatus includes a housing having an air inlet, an air guide leading from the air inlet into the housing, and an air filter which is curved hood-shaped outwardly and covers the air inlet of the housing. The air filter includes a filter frame body with a filter-fabric-free air outlet face facing the air inlet of the housing and with a window frame structure protruding over the filter-fabric-free air outlet face and having at least one window region. A filter fabric occupies the at least one window region, and a fixation releasably fixes the filter frame body to the housing.

Abstract: A battery pack supplies an electrically driven treatment apparatus with an electric driving power and includes: a first stack limiting structure and a second stack limiting structure, wherein the second stack limiting structure is disposed opposite and with a fixed distance to the first stack limiting structure; a plurality of pouch cells, wherein the pouch cells are disposed in a stack, wherein the stack is disposed between the first stack limiting structure and the second stack limiting structure and a height of the stack in a stack direction is limited by the first stack limiting structure and the second stack limiting structure; and a sensor arrangement. The sensor arrangement is disposed in the stack. The sensor arrangement extends across a major part of a surface of the pouch cells and is configured such that the height of the stack across the extension is approximately equal. The sensor arrangement has a pressure sensor.

Abstract: A blower unit for a portable handheld blower apparatus has a housing section and a tubular receiving space, formed in the housing section, with a first axial end and a second axial end and with a longitudinal center axis. Arranged in the receiving space of the housing section is an axial blower for generating a blower air flow, the axial blower being driven by a drive motor. The receiving space has an intake opening at its first axial end and a discharge opening at its second axial end. In order to reduce operating noise, an air guide plate is arranged at an axial distance in front of the intake opening, the air guide plate having external dimensions that are greater than the external dimensions of the intake opening. An annular gap that supplies intake air is formed between the air guide plate and an outer periphery of the housing section.

Abstract: A method docks an autonomous mobile green area maintenance robot to a docking station. An electrical conductor arrangement runs in the region of the docking station, wherein the conductor arrangement is designed such that a periodic current flows through the conductor arrangement, wherein the current generates a periodic magnetic field. The green area maintenance robot has two magnetic field sensors, wherein the two magnetic field sensors are designed such that the magnetic field respectively causes a periodic sensor signal in the magnetic field sensors. The method has the steps of: determining a phase shift between the two sensor signals or signals based on the sensor signals, and controlling movement of the green area maintenance robot for docking on the basis of the determined phase shift.

Abstract: A lawn mower is provided with a housing that has a discharge opening for discharging cut material. A covering device is arranged at the housing and is provided with a cover and a locking device. The cover can pivot about a pivot axis. The cover covers the discharge opening in a closed state of the cover and opens the discharge opening in an open position of the cover. In the closed state of the cover, the cover can be locked by the locking device in a locked position of the cover. The cover is moveable relative to the housing in a direction of the pivot axis. The cover is unlocked from the locked position of the cover by a movement of the cover in the direction of the pivot axis.

Abstract: A hand-guided treatment device has a motor housing which includes a basic housing body that extends at least on a first housing side, and a remaining housing body, which is connected to the basic housing body and, together with the basic housing body, encloses a housing interior. A drive motor in the housing interior is held on the basic housing body. The basic housing body has a tool-holding device for holding a tool driven by the drive motor. The basic housing body forms a rigid motor- and tool-supporting structure which extends at least on the first housing side and on an adjoining second housing side, forming an L shape, wherein the remaining housing body forms a non-rigid remaining housing structure.

Abstract: A method for operating the two stroke engine provides that the fuel valve is controlled after the starting process in at least a quasi-steady state such that, on the basis of uninterruptedly successive blocks of successive revolutions of the crankshaft, the fuel valve is opened and closed exactly once within each block. Each block includes from two to twenty revolutions of the crankshaft. The fuel valve is opened over a crankshaft angle (?) of more than 360° within one block in at least one operating state. A control device is provided for controlling the fuel valve. A quasi-steady state of the two stroke engine is a state in which the throttle element is adjusted by less than 10% of the maximum adjustment of the throttle element over a crankshaft angle (?) of 360°.

Abstract: A hand-guided treatment device is configured for use in working positions tilted relative to each other by a tilt angle of at least 45° about a device longitudinal axis. The device has a device housing, a handle operating unit with a handle extending with a main direction component parallel to the device longitudinal axis and a finger-operable operating element within finger reach of the handle, and a display field arranged on an outside of the device housing with at least one optical display element. The display field is arranged offset relative to the operating element in a housing circumferential direction about the device longitudinal axis and extends in the housing circumferential direction over a housing edge and/or with a curved or kinked course.

Abstract: A method for determining information (Info) about a state (Z) of a drive motor system (2) and/or of a drive battery pack (11) of a gardening, forestry and/or construction device (1), includes the steps of: acquiring at least one sensor temperature (TS) of at least one temperature component (3) of the drive motor system (2) and/or of the drive battery pack (11) by way of at least one component temperature sensor (4) at the same time as and/or at a time after operation of the drive motor system (2) and/or of the drive battery pack (11) and/or of a heater (300) and/or of a cooler (310) and/or of a fan (320) for heating and/or for cooling the drive battery pack (11), wherein the temperature component (3) heats up or cools down due to the operation; ascertaining operating data (BD) of the operation, wherein the operating data (BD) are of a different kind than the sensor temperature (TS); comparing the acquired sensor temperature (TS) or a variable based on the sensor temperature and the ascertained operating data

Abstract: A gardening and/or forestry apparatus has a support element. The support element supports an eyelet. The eyelet is configured to incorporate an apparatus securing element. The gardening and/or forestry apparatus also has an element receiving device. The support element and the element receiving device are configured to receive the support element in the element receiving device either in a first rotational position or in a second rotational position differing from the first rotational position and to secure the support element against rotation by form-fitting to the element receiving device.

Abstract: A rechargeable battery pack supplies electrical drive power to an electrically driven machining device. The rechargeable battery pack has: a plurality of rechargeable battery cells, wherein the rechargeable battery cells each have cell contacts; a housing, wherein the rechargeable battery cells are arranged within the housing; and a potting compound, wherein the potting compound protects the cell contacts from contact with water from outside the housing. The housing has a housing top part and a housing bottom part. The housing bottom part overlaps the housing top part such that the housing top part defines an outer region and an inner region of the housing bottom part for the potting compound. A casting level of the potting compound in the outer region is above a casting level of the potting compound in the inner region.

Abstract: A guide bar for motor chainsaws has side plates and a middle section between the side plates connected fixedly and non-movably to the side plates. The side plates form a clamping section and a deflection section opposite the clamping section. A guide groove extends circumferentially about the guide bar. The middle section forms the guide groove bottom in the deflection section. A guide bar tip is located where the longitudinal center axis of the guide bar intersects the deflection section. The side plates each have a guide surface extending continuously across a first longitudinal side of the guide bar, the deflection section, and a second longitudinal side of the guide bar. The guide surfaces of the side plates have hardened regions at the first and second longitudinal sides and at the guide bar tip with a hardness greater than a hardness of a middle region of the side plates.

Abstract: A blower apparatus is driven by a drive motor and has an intake opening and a discharge opening. The blower apparatus has a handle for guiding the blower apparatus with the handle being mounted on the blower apparatus such that it is pivotable from a first position into at least a second position. The blower apparatus is configured such that, during operation of the blower apparatus, an air flow passes through the discharge opening in a discharge direction. The handle has a grip region, which, in the first position, is inclined differently with respect to the discharge direction compared with the second position.

Abstract: A green area maintenance system includes a motor scythe, a scythe position determining device for determining scythe position coordinates, and a position recording device. The scythe position determining device is attached to the motor scythe. The position recording device is designed for recording a series of scythe position coordinates of a delimiting border while the motor scythe is being guided together with the scythe position determining device along the delimiting border of an area to be maintained.

Abstract: A carburetor has a carburetor body wherein an intake channel is formed. A throttle flap is pivotably mounted by a throttle shaft in the carburetor body for controlling the free flow cross-section of the intake channel. The intake channel has a first longitudinal center axis in the region of the throttle shaft. The throttle flap has first and second end positions, wherein the throttle flap opens a larger flow cross-section of the intake channel in the second end position than in the first end position. A partition wall section, on which the throttle flap lies in the second end position, is arranged upstream of the throttle shaft. A choke flap is upstream of the partition wall section and is pivotable between first and second end positions. In their second end positions, the throttle flap and the choke flap overlap in the direction of the first longitudinal center axis.