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 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 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 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 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.

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 hand-guided working apparatus has a radial fan. The radial fan includes a fan impeller and an air duct, which has a spiral portion surrounding the fan impeller and has a duct cross section, which increases in the air flow direction. An outlet funnel portion adjoins the spiral portion, widens in a funnel shape in the air flow direction and has a radially inner boundary wall and a radially outer boundary wall. The outlet funnel portion ends in an air outlet opening, the outlet width of which is smaller than an outside diameter of the fan impeller. The radially inner and/or the radially outer boundary wall of the outlet funnel portion has a curvature opposed to that of the spiral portion. An intermediate wall is arranged in the outlet funnel portion, between the radially inner and the radially outer boundary wall.

Abstract: A handheld portable cutting apparatus has a cutter unit with a cutter unit longitudinal axis. In a central housing section of the cutting apparatus, a drive connection is arranged between an electric drive motor and the cutter unit, wherein a motor housing having a motor housing longitudinal axis extends from the central housing section. A handle extends from the central housing section in a handle longitudinal axis. The cutter unit includes a guide bar with a saw chain circulating thereon, wherein, in a side view onto the cutting apparatus, the point of intersection between the handle longitudinal axis and the motor housing longitudinal axis and also the point of intersection between the handle longitudinal axis and the cutter unit longitudinal axis lie in the central housing section.

Abstract: A fuel supply device has a housing and an intake channel section formed in the housing. At least one fuel port opens into the intake channel section. At least one fuel channel is provided and a valve with valve plate is arranged in the fuel channel. The valve has a closed position and an open position. The valve plate contacts a valve seat in the closed position. The valve plate carries out a valve stroke between open position and closed position. At least one annular gap is formed in the fuel channel. A gap width of the at least one annular gap is matched to a length of the valve stroke of the valve plate such that the gap width is not larger than twice a length of the valve stroke. A flow cross section of the annular gap is larger than a flow cross section of the valve.

Abstract: A system for analysis of operation of a hand-guided working apparatus, wherein the working apparatus includes a working tool and a drive system for driving the working tool, includes an optical recording device configured for recording a temporal succession of images of a working procedure on a workpiece using the working tool, an identification device configured for identifying a temporal succession of operational data values of the drive system during recording of the temporal succession of images, and at least one output device configured for outputting in each case at least one of the recorded images together with at least one identified operational data value correlated in time thereto.

Abstract: A mixture formation unit has a base body in which an intake channel section is formed. The intake channel section extends from a first end side of the base body to a second end side of the base body. The mixture formation unit has at least one rectilinearly extending channel which opens into the intake channel section. The channel opens at the first end side of the base body. The mixture formation unit is preferably provided for a two stroke engine whose intake channel is divided downstream of the mixture formation unit into a mixture channel and an air channel.

Abstract: A pulley assembly for a starter device for starting an internal combustion engine of a hand-guided power tool has a pulley with an axis of rotation extending in axial direction. A circumferential side of the pulley is positioned outwardly in radial direction relative to the axis of rotation. A circumferential recess is arranged at the circumferential side and accommodates a starter rope. The pulley is provided with a spring receptacle. A connecting spring is disposed in the spring receptacle and has a first end fixedly connected to the pulley. The spring receptacle and the recess overlap each other, viewed in the axial direction and viewed in the radial direction. A starter device is provided with the pulley assembly and a second end of the connecting spring is fixedly connected to a coupling device of the starter device that couples the pulley to the crankshaft of the combustion engine.

Abstract: A cell holder structure for holding a plurality of battery cells includes a holder base part and a holder cover part forming an array of cell-receiving spaces and cell intermediate spaces lying inbetween. The holder base part has one or more base side cell supporting pillars extending axially from a base plane of the holder base part into cell intermediate spaces and has a circumferential side securing wall region abutting in an axially and radially position securing manner against a circumferential surface of battery cells to be accommodated in the cell receiving spaces, and/or the holder cover part has one or more cover side cell-supporting pillars which extend axially from a cover plane of the holder cover part into the cell intermediate spaces and have a circumferential side securing wall region abutting in an axially and radially position securing manner against a circumferential surface of the rechargeable battery cells.