A lawn mower includes a housing having an opened bottom, a drive source for driving the cutter blade in the housing, a flap provided for the cutter blade in a manner that the flap has a changeable flap angle, a grass clippings container storing cut lawn grass, a grass clippings container weight detection unit for detecting weight of the grass clippings container, and a control unit. The control unit controls at least one of the rotational speed of the drive source and the flap angle of the flap in correspondence with the weight detected by the grass clippings container weight detection unit.

A lawn mower includes a housing having an opened bottom, a drive source for driving the cutter blade in the housing, a flap provided for the cutter blade in a manner that the flap has a changeable flap angle, a grass clippings container storing cut lawn grass, a grass clippings container weight detection unit for detecting weight of the grass clippings container, and a control unit. The control unit controls at least one of the rotational speed of the drive source and the flap angle of the flap in correspondence with the weight detected by the grass clippings container weight detection unit.

A drive system of a lawn mower includes a drive belt, a drive pulley, a drive shaft pulley and an idler pulley. The drive pulley is disposed at a rocking transmission of the lawn mower to transfer drive belt motion to power for a set of wheels of the lawn mower via the rocking transmission when the rocking transmission is engaged. The drive shaft pulley is operably coupled to a drive shaft of the lawn mower to rotate responsive to rotation of the drive shaft. The drive shaft pulley engages the drive belt responsive to engagement of the rocking transmission.

In a rotary electric device for a power working machine capable of being braked by a brake mechanism, a cover having a bottomed cylindrical shape and covering a yoke of the device, includes: a cover cylindrical portion concentrically surrounding an outer peripheral surface of a cylindrical portion of the yoke with an annular clearance therebetween, and having an outer peripheral surface with which a brake shoe is capable of being placed in pressure contact; and a cover bottom wall portion continuous to one end of the cover cylindrical portion, and connected to a bottom wall portion of the yoke. A ventilation clearance communicating with the annular clearance is formed between the bottom wall portion and the cover bottom wall portion. Vent holes communicating the ventilation clearance with an outside of the yoke are provided through the bottom wall portion and the cover bottom wall portion.

An upright placeable lawn mower structure includes a casing; a wheel assembly; a rear panel; a front panel; and height adjustment stands. The rear panel is secured to the casing. The height adjustment stands include left and right height adjustment stands provided on left and right sides of the casing. The wheel assembly is provided on an outer side of the casing. The wheel assembly includes front wheels, rear wheels, a wheel axle provided between the front wheels, and a further wheel axle provided between the rear wheels. The structure is simple. It is easy to place the lawn mower, and can reduce occupied space. The push rod of the lawn mower is easy to fold.

An upright placeable lawn mower structure includes a casing; a wheel assembly; a rear panel; a front panel; and height adjustment stands. The rear panel is secured to the casing. The height adjustment stands include left and right height adjustment stands provided on left and right sides of the casing. The wheel assembly is provided on an outer side of the casing. The wheel assembly includes front wheels, rear wheels, a wheel axle provided between the front wheels, and a further wheel axle provided between the rear wheels. The structure is simple. It is easy to place the lawn mower, and can reduce occupied space. The push rod of the lawn mower is easy to fold.

Commercial walk behind mower operator controls include a rigid handlebar with a pair of hand grips, each hand grip having a non-horizontal axis. A pair of operator control levers are mounted adjacent the handlebar and hand grips. Both operator control levers are pivotable about a single pivot point having a pivot axis that is non-parallel to the axis of each hand grip. Each operator control lever is pivotable toward the hand grip to reduce the rotational speed of a drive wheel.

A work machine that can achieve size reduction and weight reduction of a housing. The work machine includes a housing, a motor fixed to an upper surface of the housing, a battery connected with the motor, and a blade driven by the motor. The motor is covered by a motor case fixed to the upper surface of the housing. The motor case is fixed to the upper surface of the housing in a different part from the motor.

A work machine that can achieve size reduction and weight reduction of a housing. The work machine includes a housing, a motor fixed to an upper surface of the housing, a battery connected with the motor, and a blade driven by the motor. The motor is covered by a motor case fixed to the upper surface of the housing. The motor case is fixed to the upper surface of the housing in a different part from the motor.

A lawncare apparatus includes a main body, multiple wheels supporting the main body, a cutting blade disposed in the main body, a motor driving the cutting blade, and an operating arm connected to the first end of the main body. The distance in the horizontal direction between the axial central line of the cylindrical gripping portion of the operating arm and the axes of the elongated handle of the main body along the length direction is less than 5 cm. Because of the structure mate relationship between the operating arm and the cylindrical gripping portion, the operator feels more comfortable during the transporting process, the volume of lawncare apparatus during transporting is reduced and the convenience of transporting is improved.