The embodiments of the present invention relates to an autonomous lawn mower, moving and working in a working region, and including: a housing, including a central axis in the longitudinal direction; a movement module, driving the housing to move; a cutting module, rotating with a first rotational axis being the center to form a cutting region, and including a cutting element; a cut-to-edge module, rotating with a second rotational axis being the center to form a cut-to-edge region, and including a cut-to-edge element, the cut-to-edge element being different from the cutting element; and a control module, controlling the autonomous lawn mower to move and work, where the first rotational axis and the second rotational axis are respectively located on two sides of the central axis. The beneficial effects of the embodiments of the present invention are that the autonomous lawn mower can perform cutting to an edge and has a compact layout.

The embodiments of the present invention relates to an autonomous lawn mower, moving and working in a working region, and including: a housing, including a central axis in the longitudinal direction; a movement module, driving the housing to move; a cutting module, rotating with a first rotational axis being the center to form a cutting region, and including a cutting element; a cut-to-edge module, rotating with a second rotational axis being the center to form a cut-to-edge region, and including a cut-to-edge element, the cut-to-edge element being different from the cutting element; and a control module, controlling the autonomous lawn mower to move and work, where the first rotational axis and the second rotational axis are respectively located on two sides of the central axis. The beneficial effects of the embodiments of the present invention are that the autonomous lawn mower can perform cutting to an edge and has a compact layout.

A lawn trimmer attachment for trimming sprinkler heads has sprinkler head clamps extending upward from its elongate body. Carriages for the sprinkler head clamps are biased by springs toward the center of the attachment. The bottom of the attachment has a plurality of longitudinally spaced blade sockets. Downwardly extending cutting blades may be inserted into the blade sockets to adjust the distance between the blades. A center brush extends downward between the cutting blades.

A lawn trimmer attachment for trimming sprinkler heads has sprinkler head clamps extending upward from its elongate body. Carriages for the sprinkler head clamps are biased by springs toward the center of the attachment. The bottom of the attachment has a plurality of longitudinally spaced blade sockets. Downwardly extending cutting blades may be inserted into the blade sockets to adjust the distance between the blades. A center brush extends downward between the cutting blades.

A control device and a working machine capable of improving the position accuracy of map data as compared with the related art is provided. There is provided a control device which is configured to acquire information which is output from a working machine which includes a working part and works along a boundary between a working area and a non-working area. The control device includes an operating state acquisition part configured to acquire information indicating an operating state of a machine body of the working machine; a judgment part configured to determine the operating state of the machine body, based on information acquired by the operating state acquisition part; a position information acquisition part configured to acquire position information indicating a position of the machine body; and a storage control part configured to store the position information acquired by the position information acquisition part in the storage, based on a determination result of the judgment part.

A control device and a working machine capable of improving the position accuracy of map data as compared with the related art is provided. There is provided a control device which is configured to acquire information which is output from a working machine which includes a working part and works along a boundary between a working area and a non-working area. The control device includes an operating state acquisition part configured to acquire information indicating an operating state of a machine body of the working machine; a judgment part configured to determine the operating state of the machine body, based on information acquired by the operating state acquisition part; a position information acquisition part configured to acquire position information indicating a position of the machine body; and a storage control part configured to store the position information acquired by the position information acquisition part in the storage, based on a determination result of the judgment part.

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 working machine according to one aspect of the present disclosure comprises an operating device, a working tool, a driving device, a braking device, a detection device, and a change device. The detection device detects a mode of an operation performed on the operating device. The change device changes a brake control to be performed by the braking device according to the mode detected by the detection device.

A working machine according to one aspect of the present disclosure comprises an operating device, a working tool, a driving device, a braking device, a detection device, and a change device. The detection device detects a mode of an operation performed on the operating device. The change device changes a brake control to be performed by the braking device according to the mode detected by the detection device.

A coupler includes a collar defining a member receiving passage. First and second lobes extend outwardly from the collar. The first lobe includes a lobe ramp surface, a cylindrical projection extending from the first lobe and radially surrounding the lobe ramp surface, and a gear extending from the cylindrical portion. A passage is defined in the first and second lobes and has a first axis. A lever arm is rotatable about the first axis. The lever arm includes a lever ramp surface. A pawl arm is movably connected to the lever arm. The pawl arm includes a portion biased into engagement with the gear teeth. A fastener extends through the passage and couples the lever arm to the first lobe so the lever ramp surface cams with the lobe ramp surface. Rotation of the lever arm in a first direction brings the first and second lobes toward each other.