Abstract: A portable handheld lawn edger includes a cutterhead (2) at the end (16) of a guide tube (4) as well as an internal combustion engine (3) at the other end (17). The engine is connected to the cutter blade (5) via a drive shaft (20) in the guide tube (4) and in the cutterhead (2). The cutter blade is mounted for rotation about an axis (6), which lies parallel to the ground during cutting operation, and is guided along the edge. A guide wheel (27) is provided on the end of the cutterhead (2) facing toward the engine (3). The cutterhead (2) can be rolled over the ground with the aid of the guide wheel (27). The service life of the edge cutter (1) is increased and the manufacturing costs are reduced in that the cutterhead (2) is provided with a spacer (7, 9) approximately at the elevation of the drive axis (6) of the cutter blade (5). The spacer (7, 9) projects from the cutterhead and is set on the ground and prevents abrasion of the cutterhead (2).

Abstract: The invention relates to a portable handheld work apparatus including an overhead branch cutter. The work apparatus has a drive motor (4) mounted at one end (2) of a carrier tube (3). A work tool (6) is held at the other end (5) of the carrying tube (3). The work tool (6) is driven via a shaft (7) mounted in the carrying tube (3). A variable work position of the portable handheld work apparatus is made possible by subdividing the carrying tube (3) into two sections (8, 9). The sections (8, 9) can be pivoted relative to each other (pivot angle 11) with respect to their longitudinal axes (52, 51) and are rotatable relative to each other (rotation angle 12) and are connected by a ball-and-socket joint (10). A device is provided for fixing the ball-and-socket joint (10) and permits the ball-and-socket joint (10) to be fixed in the desired position.

Abstract: A portable drill having an internal combustion engine and a shiftable gear mechanism is provided. The gear mechanism has an output shaft for driving a tool. An input shaft of the gear mechanism is driven by a crankshaft of the internal combustion engine. The gear mechanism is provided with a neutral speed or gear setting in which the output shaft is uncoupled from the input shaft.

Abstract: The invention relates to an operating substance tank (1) which is especially for a portable handheld work apparatus (2). The tank (1) has a fill opening (3) and a suction connection (4). The tank is configured from a first housing part (6) and a second housing part (7) connected to the first housing part (6). In this way, the tank is built up in a simple manner and is operationally reliable. A valve (8) is formed in the interior of the tank (1) so that a valve member (9) is held by the first housing part (6) and the valve member (9) comes into seal-tight contact on an opening (10) of a through bore (11) on the second housing part (7). The valve (8) functions especially as an aerating valve for the tank (1).

Abstract: An implement is provided having a motor housing in which is disposed an internal combustion engine as a drive for a tool. The implement also includes a carburetor and an air filter. An air filter chamber is provided with a cover element that includes two cover portions, a first cover portion of which extends over the air filter chamber, and a second cover portion of which extends over a ventilated hollow space of the motor housing that is adjacent to the air filter chamber. At least one in-flow passage for the combustion air is provided and in the first cover portion opens into the air filter chamber. At least one further passage is provided for connecting the hollow space with the in-flow passage.

Abstract: The invention relates to portable handheld work apparatus including a brushcutter, edge cutter or the like. The work apparatus has a drive motor (1) and a cutting tool (2) driven by the drive motor. The work apparatus includes a guide tube (3) for guiding a drive shaft (4) as well as a handle (5) fixed on the guide tube (3). The drive shaft (4) connects the cutting tool (2) to the drive motor (1). The handle (5) is in the form of a handle bracket (8) and can be pivoted about a pivot axis (7) lying transversely to the longitudinal axis (6) of the guide tube (3) for adjusting the distance (a) of the handle to the guide tube (3). A spring action handle bracket holder (22, 23) is mounted between the handle bracket (8) and the guide tube (3). The handle bracket holder is especially vibration dampening and extends with a component in the direction of the longitudinal axis (6).

Abstract: A portable handheld lawn edger includes a cutterhead (2) at the end (16) of a guide tube (4) as well as an internal combustion engine (3) at the other end (17). The engine is connected to the cutter blade (5) via a drive shaft (20) in the guide tube (4) and in the cutterhead (2). The cutter blade is mounted for rotation about an axis (6), which lies parallel to the ground during cutting operation, and is guided along the edge. A guide wheel (27) is provided on the end of the cutterhead (2) facing toward the engine (3). The cutterhead (2) can be rolled over the ground with the aid of the guide wheel (27). The service life of the edge cutter (1) is increased and the manufacturing costs are reduced in that the cutterhead (2) is provided with a spacer (7, 9) approximately at the elevation of the drive axis (6) of the cutter blade (5). The spacer (7, 9) projects from the cutterhead and is set on the ground and prevents abrasion of the cutterhead (2).

Abstract: The invention relates to a portable handheld drilling machine having an internal combustion engine (21) and a transmission (2) accommodated in a housing (3). The output shaft (4) of the transmission (2) carries a tool chuck (5) and the input shaft of the transmission is driven by the crankshaft (20) of the engine (21). The machine housing surrounds the cylinder (23), the crankcase (24), the exhaust-gas muffler (26) and the carburetor (25) of the engine (21). A handle is attached to the machine housing for holding and guiding the portable handheld drilling machine. To provide a drilling machine which can be reliably guided, the machine housing (1) is configured open at its front end face (10) and at its rear end face (27) in the direction of the longitudinal axis (8) of the machine. The transmission housing (3) is connected to the engine block (23, 24) of the engine (21) and projects with a lateral play (v) out of the machine housing (1) through the forward end face (27).

Abstract: The invention relates to a vibration damper between a housing (4), which holds an internal combustion engine, and a handle (3) fixed on the housing (4). The handle (3) is for holding and guiding the motor-driven chain saw (2) during use thereof. The vibration damper (1) is a coil spring (5) which is fixed at a first end (10) thereof with an attachment element (7) to the handle (3) and, at a second end (20), the coil spring is fixed with a further attachment element (30) to the housing. A part turn of the end (10, 20) of the coil spring (5) is held form-tightly to the attachment element (7, 30) in the direction of its longitudinal center axis (25). To provide a torsion-free assembly of the coil spring, it is provided that the coil spring (5) can be assembled from one of its ends (20) between the handle (3) and the housing (4) and be secured at least at one of its ends (20) to the attachment element (30) against a rotational movement in the peripheral direction.

Abstract: The invention relates to a portable handheld work apparatus including an overhead branch cutter. The work apparatus has a drive motor (4) mounted at one end (2) of a carrier tube (3). A work tool (6) is held at the other end (5) of the carrying tube (3). The work tool (6) is driven via a shaft (7) mounted in the carrying tube (3). A variable work position of the portable handheld work apparatus is made possible by subdividing the carrying tube (3) into two sections (8, 9). The sections (8, 9) can be pivoted relative to each other (pivot angle 11) with respect to their longitudinal axes (52, 51) and are rotatable relative to each other (rotation angle 12) and are connected by a ball-and-socket joint (10). A device is provided for fixing the ball-and-socket joint (10) and permits the ball-and-socket joint (10) to be fixed in the desired position.

Abstract: The invention relates to an operating substance tank (1), especially for a portable handheld work apparatus (2) having a fill opening (3) and an outflow opening (4). The operating substance tank (1) is configured from a first housing part (6) and a second housing part (7) connected to the first housing part in order to configure the operating substance tank (1) in a simple assembly so that the operating substance can be made available without disruption. A filter wall (8) is configured as one piece from a housing part (6) and partitions the tank housing (5) of the operating substance tank (1) into at least two spaces (9, 10).

Abstract: The invention relates to an operating substance tank (1) which is especially for a portable handheld work apparatus (2). The tank (1) has a fill opening (3) and a suction connection (4). The tank is configured from a first housing part (6) and a second housing part (7) connected to the first housing part (6). In this way, the tank is built up in a simple manner and is operationally reliable. A valve (8) is formed in the interior of the tank (1) so that a valve member (9) is held by the first housing part (6) and the valve member (9) comes into seal-tight contact on an opening (10) of a through bore (11) on the second housing part (7). The valve (8) functions especially as an aerating valve for the tank (1).

Abstract: The invention relates to portable handheld work apparatus including a brushcutter, edge cutter or the like. The work apparatus has a drive motor (1) and a cutting tool (2) driven by the drive motor. The work apparatus includes a guide tube (3) for guiding a drive shaft (4) as well as a handle (5) fixed on the guide tube (3). The drive shaft (4) connects the cutting tool (2) to the drive motor (1). The handle (5) is in the form of a handle bracket (8) and can be pivoted about a pivot axis (7) lying transversely to the longitudinal axis (6) of the guide tube (3) for adjusting the distance (a) of the handle to the guide tube (3). A spring action handle bracket holder (22, 23) is mounted between the handle bracket (8) and the guide tube (3). The handle bracket holder is especially vibration dampening and extends with a component in the direction of the longitudinal axis (6).

Abstract: A connection is provided for the sections of a separable guide tube and of a drive shaft disposed therein. Shaft sections of the drive shaft are interlockingly coupled together, wherein the ends of the shaft sections interengage one another. One of the shaft sections has an insertion end having a rotationally symmetrical non-circular cross-sectional configuration. A drive sleeve is coaxially secured to the other shaft section and has a coupling cross-sectional configuration that corresponds to the insertion end. Which is introduceable into the driving sleeve. An axial introduction adapter is provided on the driving sleeve and has at least one inwardly projecting introduction ramp, which extends over an angle of curvature between two adjacent large diameters of the coupling cross-sectional configuration of the driving sleeve. The introduction ramp includes an axially decreasing ramp surface that forms a shoulder for the insertion end.

Abstract: A cutter head assembly for a motor chain saw has a cutter head housing and a drive shaft mounted in and projecting from the cutter head housing. A drive pinion is mounted on the portion of the drive shaft projecting from the cutter head housing. A guide bar having a first end positioned adjacent to the drive pinion is provided. A saw chain is driven by the drive pinion and circulates on the guide bar. A cover covering the drive pinion and resting at least in an area of outgoing deflection of the saw chain at a housing wall of the cutter head housing defines a cuttings chamber open toward the guide bar. The first end of the guide bar is clamped between the housing wall of the cutter head housing end the cover. The cover has a cuttings ejection opening opposite the housing wall in the vicinity of the area of outgoing deflection. The cuttings ejection opening has a rim extending in a circulating direction of the saw chain and a ramp projecting from a first portion of the rim into the cutting chamber.

Abstract: A hand-guided working tool has a telescopic rod with a first and a second end. A drive motor is connected to the first end of the telescopic rod. A working tool, connected to the second end of the telescopic rod, is driven by the drive motor. The telescopic rod includes an outer tube and an inner tube inserted with an inner end into the outer tube and displacable in the longitudinal direction of the telescopic rod. A first clamping member is connected to the first end of the outer tube for fixing the axial position of the inner tube. The inner tube has an outer mantle surface and the outer tube has an inner circumferential surface. The outer mantle surface is spaced at a radial distance from the inner circumferential surface. A first cylindrical bearing body is supported on the inner end of the inner tube. The first bearing body is displacably supported in the outer tube.

Abstract: The invention is directed to a cutterhead for an overhead branch cutter. The cutterhead includes a work tool and a gear assembly housing having a lower housing part and an upper housing part defining a closure cover for the lower housing part. A gear assembly is mounted in the housing and includes an input shaft and an output shaft disposed transversely to the input shaft. A first bearing unit journals the input shaft and a second bearing unit journals the output shaft in the gear assembly housing. Intermeshing gears are mounted between the input shaft and the output shaft. The lower housing part and the upper housing part conjointly define a partition plane partitioning the first and second bearing units. A one piece attachment flange is formed on the lower housing part and the output shaft has an outer end extending through the attachment flange. The work tool is mounted on the attachment flange and is operatively connected to the outer end of the output shaft.

Abstract: A hand-held working tool has a drive motor and a grip connected at a distance to the drive motor. Operating elements, including a throttle lever, a choke actuator, and a short-circuiting switch, are connected to the grip for controlling the drive motor. A transmission device, including a Bowden cable arrangement with a sleeve and a cable enclosed by the sleeve, is provided for connecting the operating elements to the drive motor. The transmission device has an inner tube inserted into the Bowden cable arrangement wherein the inner tube is positioned between the sleeve and the cable so as to be longitudinally displaceable relative to the sleeve and the cable.

Abstract: A hand-guided working tool has a telescopic rod with a first and a second end and a drive motor connected to the first end. A working tool is connected to the second end of the telescopic rod. A telescopic drive shaft is enclosed in the telescopic rod. A first end of the telescopic drive shaft is connected to the drive motor and a second end of the telescopic drive shaft is connected to the working tool. The telescopic rod has an outer tube and an inner tube inserted with a leading end into the outer tube. The inner tube displaceable in the longitudinal direction of the telescopic rod. The telescopic drive shaft has a shaft tube and a shaft rod enclosed in the shaft tube. At least two bearings are arranged in the outer tube for rotatably supporting the telescopic drive shaft. They are spaced from one another in the longitudinal direction of the telescopic rod.