Described herein is a work tool (100) comprising: a motor (125) provided with a drive shaft (130), a casing (195) containing the motor (125) and provided with at least one inlet opening (235) and with at least one outlet opening (240), an implement (135) positioned outside the casing (195) and kinematically connected with the drive shaft (130), and a fan (245) kinematically connected to the drive shaft (130) and able to generate a flow of air from the inlet opening (235) towards the outlet opening (240) of the casing (195) passing in heat exchange relationship with the motor (125), wherein said fan (245) is contained inside the casing (195) in a space located between the motor (125) and the implement (135).

A vegetation cutting device comprising a housing rotatably coupled to a shaft; a cutting head comprising a rotary cutting device for cutting vegetation, the cutting head being coupled to the shaft and being arranged to move between an edging mode in which the rotary cutting device rotates in a substantially horizontal plane; a motor mounted in the housing, the motor being arranged to drive the rotary cutting device; and a switching device mechanically coupled between the housing and the shaft and arranged to be actuated when the shaft rotates relatives to the housing thereby changing the speed of the rotary cutting device when the cutting head moves between the edging mode and trimming mode.

A vegetation cutting device comprising a housing rotatably coupled to a shaft; a cutting head comprising a rotary cutting device for cutting vegetation, the cutting head being coupled to the shaft and being arranged to move between an edging mode in which the rotary cutting device rotates in a substantially horizontal plane; a motor mounted in the housing, the motor being arranged to drive the rotary cutting device; and a switching device mechanically coupled between the housing and the shaft and arranged to be actuated when the shaft rotates relatives to the housing thereby changing the speed of the rotary cutting device when the cutting head moves between the edging mode and trimming mode.

A vegetation cutting device comprises: a housing; a motor mounted in the housing having a rotatable drive shaft; a gearing system comprising a rotatable output shaft, the gearing system adapted to be driven by the drive shaft; a rotatable cuffing head mounted on the output shaft; a rotation sensor module mounted in the housing and configured to detect the rotational speed of the motor and configured to output a rotational speed signal; and a control module configured to determine the rotational speed of the cutting head based on the rotational speed signal and configured to control the speed of the motor in response to the determined rotational speed of the cutting head.

A vegetation cutting device comprises: a housing; a motor mounted in the housing having a rotatable drive shaft; a gearing system comprising a rotatable output shaft, the gearing system adapted to be driven by the drive shaft; a rotatable cuffing head mounted on the output shaft; a rotation sensor module mounted in the housing and configured to detect the rotational speed of the motor and configured to output a rotational speed signal; and a control module configured to determine the rotational speed of the cutting head based on the rotational speed signal and configured to control the speed of the motor in response to the determined rotational speed of the cutting head.

An electric working machine according to one aspect of the present disclosure comprises a brushless motor, a rotational position sensor, a detector, and a calculator. The calculator detects, when the brushless motor is inertially rotated, a difference between a detection result obtained by the rotational position sensor and a detection result obtained by the detector and calculates a correction value, based on the difference, for correcting the detection result obtained by the rotational position sensor.

Provided is an electric power work device which includes: a body case; a work tool protruding forward from a front side with respect to the body case; a motor; and a battery supplying power to the motor. The motor is accommodated in the body case and the battery is detachably attached to a rear side with respect to the body case. A top handle is extended in a longitudinal direction at an upside with respect to the body case. The top handle includes, on an upper surface of a front part thereof, a thumb rest and a power switch. The power switch is arranged on a side in a lateral direction of the thumb rest.

A battery operated handheld power tool, the power tool (1) comprising a working tool assembly (20), comprising a working tool of the power tool and an electric motor, arranged to drive the working tool, a handle assembly (10), comprising a body portion (11) to which a battery pack (13) may be detachably connected, which battery pack (13) is arranged to provide electric power to the electric motor, a control unit (15), provided in the body portion (16) so as to control a flow of electric current from the battery pack (13) to the motor. The battery operated handheld power tool is characterized in that the body portion (11) comprises a fan (14), arranged to generate a flow of air passing by the control unit (15) during operation of the power tool (1).

A guard tube assembly for a drive shaft of a power tool has a guard tube with a tube cross section deviating from a circular shape and having an inner contour and a center. An inner support tube inside the guard tube supports the drive shaft. The inner support tube has a bearing sleeve supported by support elements on the inner contour. The inner contour has a first and a second circumferential section. The first circumferential section has a smallest spacing to the center and the second circumferential section has a largest spacing to the center. The elastic support elements have a contact surface contacting the inner contour and spaced at a contact surface spacing to the center. The contact surface spacing is longer than the smallest spacing of the first circumferential section and shorter than or identical to the largest spacing of the second circumferential section.

A work vehicle includes a vehicle body, a pair of left and right driving wheels that movably support the vehicle body, a pair of motors capable of rotatably driving the left and right driving wheels respectively, a pair of maneuvering levers pivotally supported to the vehicle body to be pivotable about a horizontal axis extending in a vehicle body transverse direction and capable of adjusting rotational speeds respectively of the left and right driving wheels and a pair of dynamic vibration absorbing portions supported to respective free end portions of the maneuvering levers and capable of suppressing vibrations of the maneuvering levers.