A rotator includes a supporting case and a bobbin. The supporting case includes a cylindrical portion, a flange portion extended from the cylindrical portion, and a plurality of extension holes provided through the flange portion. An inner peripheral surface of the bobbin is removably abutted onto an outer peripheral surface of the cylindrical portion. A string trimmer line with flexibility is wound around an outer peripheral surface of the bobbin. Both end portions of the string trimmer line wound around the outer peripheral surface of the bobbin are extended radially outward through two extension holes selected from a plurality of extension holes.

An electric powerhead includes a housing including a mounting assembly, wherein the mounting assembly includes a mounting plate and a mounting insert. The mounting plate includes a shaft opening and a plurality of first openings arranged in a standard vertical shaft engine mounting pattern and the mounting insert includes a plurality of second openings aligned with the plurality of first openings. The electric powerhead further includes an electric motor positioned within the housing, wherein the electric motor includes an output shaft that extends through the shaft opening of the mounting assembly and wherein the output shaft is configured to rotate about an axis of rotation.

An electric powerhead includes a housing including a mounting assembly, wherein the mounting assembly includes a mounting plate and a mounting insert. The mounting plate includes a shaft opening and a plurality of first openings arranged in a standard vertical shaft engine mounting pattern and the mounting insert includes a plurality of second openings aligned with the plurality of first openings. The electric powerhead further includes an electric motor positioned within the housing, wherein the electric motor includes an output shaft that extends through the shaft opening of the mounting assembly and wherein the output shaft is configured to rotate about an axis of rotation.

Collection vessel fill-indicator assemblies and mowers with collection vessel fill-indicator assemblies are provided. A collection vessel fill-indicator assembly includes a capacitance element configured to be disposed adjacent to a collection vessel of a mower to detect a fill state of the collection vessel; and an interference guard disposed around a portion of the capacitance element to shield the capacitance element from interference.

A gardening tool, such as a mower, has a main body having an accessory, such as a mowing blade, and a motor for driving the accessory. A handle is rotatably connected to the main body. At least one operation assembly is associated with the handle for being operated by a user to control the motor when the handle is located in a predetermined position. A control system prevents the motor from being controlled by the operation assembly and halts the motor when the handle is located out of the predetermined position.

A gardening tool, such as a mower, has a main body having an accessory, such as a mowing blade, and a motor for driving the accessory. A handle is rotatably connected to the main body. At least one operation assembly is associated with the handle for being operated by a user to control the motor when the handle is located in a predetermined position. A control system prevents the motor from being controlled by the operation assembly and halts the motor when the handle is located out of the predetermined position.

A convertible lawnmower includes a housing and a mulching system. The housing includes a discharge opening. The mulching system includes a mounting ring and a shutter ring. The mounting ring is coupled substantially concentrically to the housing and includes an upper surface, a lower surface, and a sidewall that extends substantially axially therebetween. The sidewall is formed with a retaining groove and at least one installation groove. The retaining groove extends at least partially circumferentially within an inner surface of the sidewall and each installation groove extends axially from the lower surface to the retaining groove. The shutter ring is only coupled to mounting ring via the retaining groove such that the shutter ring is selectively shiftable between a mulching mode and a discharge mode.

A convertible lawnmower includes a housing and a mulching system. The housing includes a discharge opening. The mulching system includes a mounting ring and a shutter ring. The mounting ring is coupled substantially concentrically to the housing and includes an upper surface, a lower surface, and a sidewall that extends substantially axially therebetween. The sidewall is formed with a retaining groove and at least one installation groove. The retaining groove extends at least partially circumferentially within an inner surface of the sidewall and each installation groove extends axially from the lower surface to the retaining groove. The shutter ring is only coupled to mounting ring via the retaining groove such that the shutter ring is selectively shiftable between a mulching mode and a discharge mode.

There is provided a mower comprising a base and a height adjustment means. The height adjustment device is a linkage comprised of a front axle, a rear axle and a connecting rod. The base is supported at a position on the front axle offset relative to the front wheel rotation axis, and is supported at a position on the rear axle offset relative to the rear wheel rotation axis. Between the base and the connecting rod is disposed a first elastic member that can apply a first elastic tension so that the base has a rising tendency when being in a low position. Between the base and at least one of the front axle and the rear axle, there is disposed a second elastic member that can apply a second elastic tension.

There is provided a mower comprising a base and a height adjustment means. The height adjustment device is a linkage comprised of a front axle, a rear axle and a connecting rod. The base is supported at a position on the front axle offset relative to the front wheel rotation axis, and is supported at a position on the rear axle offset relative to the rear wheel rotation axis. Between the base and the connecting rod is disposed a first elastic member that can apply a first elastic tension so that the base has a rising tendency when being in a low position. Between the base and at least one of the front axle and the rear axle, there is disposed a second elastic member that can apply a second elastic tension.