A detachable string trimmer assembly for a lawnmower includes a trimmer head; a shaft assembly; a lockable joint attached to the trimmer head and the shaft assembly, the shaft assembly adjustable between a first position at which the trimmer head is coaxial with an axis along the shaft assembly and a second position at which the trimmer head is angled with respect the axis along the shaft; a first mount attached to the shaft assembly to removably attach the detachable string trimmer assembly to the lawnmower; a second mount attached to the shaft assembly to removably attach the detachable string trimmer assembly to the lawnmower; a handle assembly attached to the shaft assembly to selectively operate the trimmer head; and a remote assembly mountable to the lawnmower to selectively operate the trimmer head.

A detachable string trimmer assembly for a lawnmower includes a trimmer head; a shaft assembly; a lockable joint attached to the trimmer head and the shaft assembly, the shaft assembly adjustable between a first position at which the trimmer head is coaxial with an axis along the shaft assembly and a second position at which the trimmer head is angled with respect the axis along the shaft; a first mount attached to the shaft assembly to removably attach the detachable string trimmer assembly to the lawnmower; a second mount attached to the shaft assembly to removably attach the detachable string trimmer assembly to the lawnmower; a handle assembly attached to the shaft assembly to selectively operate the trimmer head; and a remote assembly mountable to the lawnmower to selectively operate the trimmer head.

An autonomous traveling work apparatus includes a work unit including a passive rotary cutter that passively rotates, a driving rotary cutter that is driven to rotate, and a fixed cutter that does not rotate. The passive rotary cutter has a rotation axis passing through a rotation center thereof and oriented in a direction intersecting the front-rear direction of a vehicle body, and includes a plurality of blade parts on the outer peripheral portion of the passive rotary cutter. The fixed cutter is adjacent to the passive rotary cutter. The driving rotary cutter has a rotation axis passing through a rotation center thereof and oriented in the direction intersecting the front-rear direction of the vehicle body, and rotates by means of a drive device. The driving rotary cutter cuts the vegetation above the lower end of the passive rotary cutter.

An autonomous traveling work apparatus includes a work unit including a passive rotary cutter that passively rotates, a driving rotary cutter that is driven to rotate, and a fixed cutter that does not rotate. The passive rotary cutter has a rotation axis passing through a rotation center thereof and oriented in a direction intersecting the front-rear direction of a vehicle body, and includes a plurality of blade parts on the outer peripheral portion of the passive rotary cutter. The fixed cutter is adjacent to the passive rotary cutter. The driving rotary cutter has a rotation axis passing through a rotation center thereof and oriented in the direction intersecting the front-rear direction of the vehicle body, and rotates by means of a drive device. The driving rotary cutter cuts the vegetation above the lower end of the passive rotary cutter.