Abstract: The present disclosure relates to a battery powered tool (1) extending in a longitudinal direction (Z), comprising a tool body (10) and a battery pack (20), which battery pack is arranged on the tool body and adapted to power the tool. The tool body is provided with a through aperture adapted to receive the battery pack, such that the tool body at least partly surrounds the battery pack.

Abstract: A self-powered chainsaw, typically a battery powered chainsaw, comprising a housing (1; 21), a power source (5; 25), a endless cutting chain (4; 24) having a plurality of cutting elements and a motor (6) arranged to drive the chain (4; 24) relative to the housing (1; 21) using power from the power source (5; 25), in which the chainsaw further comprises a sharpening element (12; 32) which is arranged so as to be driven relative to the cutting elements and the housing (1; 21) using the power source (5; 25).

Abstract: A typically battery-operated power tool, such as a chainsaw or hedge trimmer, comprising a working element (4), a motor (6) arranged to drive the working element (4) and a controller (9) arranged to control the speed at which the motor drives the working element (4), in which there is provided a sensor (12) for at least one factor indicative of the efficiency with which the power tool is being operated, the controller (9) being arranged to vary the speed at which the motor (6) drives the working element (4) should the factor indicate that the power tool is being operated in a sub-optimal manner. Typically, the factor is the pressure which the user is applying the power tool, and the sensor (12) is a sensor for the current flowing through the motor (6).

Abstract: A balanced electric power tool (100, 700) is provided. The electric power tool (100, 700) may include a tool body (102, 702) and one or more working implements coupled to the tool body (102, 702). Further, the one or more working implemments may be connected to an electric drive motor. The electric power tool (100, 700) further includes at least one battery (114, 712), which may include at least one battery cell (204), for supplying the electric drive motor (110, 710) with electrical energy. The electric power tool (100, 700) further inlcudes a front handle (104, 704) and a rear handle (106, 706). The front handle (104, 704) is located at least partly in front of the rear handle (106, 706) along a longitudinal axis (L, L?) of the electric power tool (100, 700).

Abstract: The invention relates to a closure device (2) for closing a refill opening of a tank such as, a fuel tank or a lubricant tank. The closure device includes a body portion (20) for engagement with the refill opening. The closure device (2) further includes a pivotal member (6) provided with a grip portion (3). The grip portion (3) may be switched between a retracted position and a protruding position. In protruding position, the grip portion (3) extends outwardly of the body portion (20) to form a convenient grip to an operator. A holding member (13, 14, 17) may be provided to hold the pivotal member (6) in the protruding position. The holding member (13, 14, 17) may be secured to the pivotal member (6) and to the body portion (20). The closure device (2) may further comprise a biasing member (11) arranged for urging the pivotal member (6) towards the retracted position.

Abstract: The present invention relates to a handle part (20) for a motorized, handheld tool (10), having at least one handle (21, 22), for an operator to carry and operate the tool (10), said handle part (20) further having at least one base portion (23) arranged adjacent said at least one handle (21, 22) in such a way that a toe portion, of a boot or the like of an operator, may be held against the base portion (23) when the tool (10) is placed on the ground. Said handle part (20) further having at least one rear portion (24) arranged where the base plate (23) and said at least one handle (21, 22) meet, in such a way that a thigh of an operator may be held against the rear portion (23) when operating the tool (10).

Abstract: The present invention concerns a handheld working tool comprising a motor part (10), a handle part (20) comprising a handle grip (21), and at least one first type antivibration element (30) arranged between said motor part (10) and said handle part (20), and which element (30) is adapted to isolate the handle part (20) from vibrations in the motor part (10). The working tool (1) is characterized in that it further comprises at least one second type antivibration element (40) arranged adjacent to the first type antivibration element (30). The at least one second type antivibration element (40) is adapted to, when in an active state, prevent vibrations in the motor part (10) from being transferred to the handle grip (21). The second antivibration element (40) is in the active state when the handle grip (21) is loaded during operation of the working tool (1).

Abstract: This invention relates to a flexible intake system for a crankcase scavenged two-stroke internal combustion engine (10) having an additional air supply to its transfer ducts. The intake system comprises a flexible intake duct (22) connecting a fuel supply unit (21) e.g. a carburetor with an engine cylinder (11) and at least one flexible air duct (40) connecting a valve housing (42) for additional air with the engine cylinder. The end portion of the flexible intake duct (22) and at least one air duct (40) is secured to the cylinder by means of a baffle (23) made of a stiffer material than the ducts (22, 40) themselves.

Abstract: A chainsaw (1) comprises an internal combustion engine (3) having a cylinder (4) with a piston (5) connected to a crankshaft (6). The piston (5) has an upper surface at a distance D from the central axis of the crankshaft (6) measured along the longitudinal axis defined by the cylinder (4), when the piston (5) is in its top dead centre. The chainsaw (1) is further provided with a front handle (7), which central axis is disposed at a distance B from the central axis of the crank shaft (6) along an axis substantially perpendicular to a horizontal plane (13), the horizontal plane (13) being defined as the plane on which the chainsaw (1) may rest in an upright position when not operated. The chainsaw (1) also includes a throttle lever (9), which rear end is disposed at a distance C from the central axis of the crankshaft (6) along an axis substantially parallel to the horizontal plane (13).

Abstract: A battery-operated portable tool (1), comprising a housing (2), a battery pack (3) comprising a battery pack housing (3) supporting a battery (10), a mounting (16) releasably and replaceably mounting the battery pack (3) on the housing (2), a motor (4) in the housing (2) arranged to be driven by the battery (10) in order to operate the tool (1) and a control circuit (7) arranged to control the application of current from the battery (10) to the motor (4), in which the mounting (16) has a active position where the battery pack (3) is held against the housing (2) and the battery (10) is in electrical contact with the control circuit (7), an open position when the mounting (16) does not hold the battery pack (3) against the housing (2) such that the battery pack (3) can be removed from the housing (2) and an inactive position where the mounting (16) holds the battery pack (3) against the housing (2) but the battery (10) is not in electrical contact with the control circuit (7).

Abstract: A battery-powered portable cutting tool such as a chainsaw or hedge trimmer, comprising: a housing (1), a cutting element (2) supported by the housing, an electric motor (6) coupled to the cutting element (2) so as to drive the cutting element (2) to cut, a battery (5) electrically coupled to the motor (6) so as to supply electric current to the motor (6) and a control circuit (9) arranged to control the supply of electric current to the motor (6) from the battery (5), in which the control circuit (9) comprises a main switch (8) operable by a user and an auxiliary switch (10, 11) also operable by a user; in which the control circuit (9) has: an active state in which operation of the main switch (8) by the user allows electric current to flow to the motor (6) so as to cause the cutting element (2) to be driven; and an inactive state in which operation of the main switch (8) does not allow electric current to flow to the motor (6) and so the motor (6) does not drive the cutting element (2); in which operation o

Abstract: A battery pack for powering a battery powered tool may include a housing, a plurality of cells and an electrical connection assembly. The housing may include a sidewall assembly. The sidewall assembly may be configured to correspond to respective sidewalls of a battery compartment defined at a portion of the battery powered tool to facilitate insertion of the battery pack into the battery compartment. The plurality of cells may be disposed within the housing and arranged adjacent to each other such that the sidewall assembly, which extends along a direction substantially parallel to a direction of insertion of the battery pack into the battery compartment, forms an enclosure around the plurality of cells on all sides substantially parallel to the direction of insertion. The plurality of cells may be electrically connected to each other to provide a combined output.

Abstract: A throttle control device for a hand held tool, such as a chain saw, is provided. The tool is provided with a forwardly extending wire for transmitting a motion from a throttle control lever turnably arranged about a first axis to a throttle valve. One end of the wire is secured to a wire arm that is turnably arranged about a second axis. The wire arm is provided with one or several teeth cooperating with the throttle control lever and the second axis is arranged behind the first axis.

Abstract: This invention relates to a flexible intake system for a crankcase scavenged two-stroke internal combustion engine (10) having an additional air supply to its transfer ducts. The intake system comprises a flexible intake duct (22) connecting a fuel supply unit (21) e.g. a carburettor with an engine cylinder (11) and at least one flexible air duct (40) connecting a valve housing (42) for additional air with the engine cylinder. The end portion of the flexible intake duct (22) and at least one air duct (40) is secured to the cylinder by means of a baffle (23) made of a stiffer material than the ducts (22, 40) themselves.

Abstract: A combined fuel tank and handle unit for a motorized, handheld tool includes a substantially closed volume, a handle, and a joint between two parts of the unit. The joint protrudes a distance beyond the surrounding surfaces. At least one rib is disposed at a distance from the joint on the underside of the tool.

Abstract: A chainsaw having a brake arrangement comprising: a kickback brake drum (10) arranged to rotate together with a drive sprocket driving a saw chain of a chainsaw, a kickback brake for quickly stopping the saw chain if at least one kickback actuator (7) is actuated, the kick back brake including a kickback brake band (11) extending around the kickback brake drum (10) and means for tightening the kickback brake band (17-19, 22) around the kickback brake drum (10), and; a coasting brake weaker than the kickback brake being arranged to brake the saw chain (2) unless a coasting actuator of the chainsaw is actuated, the coasting brake includes a coasting brake band extending around a coasting brake drum (10) arranged to rotate together with the drive sprocket (37), and means for tightening the coasting brake band (20, 22, 23) around the coasting brake drum, wherein the coasting brake band is either at least one longitudinally slit portion (11b) of the kickback brake band or a separate brake band.

Abstract: The invention relates to an arrangement for attaching a bar (1) of a hand-held motor driven tool, such as a chain saw, to a body (2) of the tool, the arrangement comprising: at least one bolt (3), having a first part (3a), securely arranged to the body (2), and a second part (3b) extending from the body, the second part having an engagement portion (3c) for engaging a nut (5, 15); a cover portion (4, 14) adapted to bear against a bar (1) such that the bar is arranged between the cover portion (4, 14) and the body (2); and at least one nut (5, 15), captively attached to the cover portion (4, 14). The nut is adapted to engage the engagement portion (3c) of the bolt (3) for securing a bar (1) between the cover portion (4, 14) and the body (2), the nut (5, 15) having a rotation axis (X). The nut is also arranged to move a first distance (A) along the engagement portion (3c) of the bolt (3), in a direction of its rotation axis (X), for securing a bar (1) between the cover portion (4, 14) and the body (2).

Abstract: An arrangement for attaching a bar of a hand-held motor driven tool, such as a chain saw, to a body of the tool includes at least one first engagement device, a cover portion adapted to bear against a bar such that the bar is arranged between the cover portion and the body, and at least one second engagement device is adapted to engage the first engagement device for securing a bar between the cover portion and the body. The second engagement device is arranged to move a first distance along the first engagement device in a direction of the rotation axis of the second engagement device for securing a bar between the cover portion and the body. The second engagement device is captively attached to a spring biasing member having an undistorted position and a distorted position.

Abstract: A cylinder (1) for a crankcase scavenged two-stroke engine, comprising a cylinder bore (2) with centre line (12) and on opposite sides of the cylinder located closed transfer ducts (3, 3?), which cylinder (1) has an underside (4) essentially perpendicular towards the cylinder bore (2), intended to be connected to a crankcase (5) in a parting plane (A), and besides an inlet (8) for air/fuel mixture, the cylinder is provided with at least one inlet (9, 9?) for additional air to the combustion chamber, which inlet for additional air runs through a cylinder wall (11) and via a recess in the piston and a transfer port (6, 6?) leads down into the transfer ducts (3, 3?).