An Invasive Weed Seed Removal System, and a method for making an Invasive Weed Seed Removal System are disclosed. More particularly, an invasive weed seed removal device is provided including a weed seed removal nozzle which works in conjunction with a combination vacuum and a venturi effect cutting blade configuration, to cut and vacuum invasive weed seed pods, thereby effectively and economically removing them from the environment before the weed seeds reach the ground, whereby the annual cycle of invasive weeds is broken, and areas of land are cleared for native plants to grow and thrive. The Invasive Weed Seed Removal System can be configured as a hand-held unit, a backpack weed whacker type unit, a lawn mower type unit and a heavy equipment type tractor attachment, to enable several methods of controlled cutting and removal of the seed pods of invasive weeds and noxious imported grasses and other plants, by adjusting the height of a unique cutting and vacuum nozzle.

An Invasive Weed Seed Removal System, and a method for making an Invasive Weed Seed Removal System are disclosed. More particularly, an invasive weed seed removal device is provided including a weed seed removal nozzle which works in conjunction with a combination vacuum and a venturi effect cutting blade configuration, to cut and vacuum invasive weed seed pods, thereby effectively and economically removing them from the environment before the weed seeds reach the ground, whereby the annual cycle of invasive weeds is broken, and areas of land are cleared for native plants to grow and thrive. The Invasive Weed Seed Removal System can be configured as a hand-held unit, a backpack weed whacker type unit, a lawn mower type unit and a heavy equipment type tractor attachment, to enable several methods of controlled cutting and removal of the seed pods of invasive weeds and noxious imported grasses and other plants, by adjusting the height of a unique cutting and vacuum nozzle.

A cutting arrangement (2) configured to be attached to a lawnmower (1) to cut vegetation is disclosed. The cutting arrangement (2) comprises a cutting unit (4) configured to rotate in a first rotational direction (R) around a rotation axis (Ax) during operation, a cutting guard (3) comprising a top surface (13) and side walls (34), and a centre body (8) protruding from the 5 top surface (13). The centre body (8) is arranged such that the distance (d11, d12, d13) from the rotation axis (Ax) to radially outer delimiting surfaces (8.1, 8.2, 8.3) of the centre body (8) decreases continuously, seen in the first rotational direction (R), within a first angle (a1) having its vertex (v) at the rotation axis (Ax). The first angle (a1) exceeds 90 degrees or exceeds 180 degrees. The present disclosure further relates to a lawnmower (1) comprising 10 a cutting arrangement (2).

A tool to be used when tightening or loosening a bolt that secures a blade, a lawnmower blade for example, to a machine. The tool checks the movement of the blade that occurs when the bolt is being loosened or tightened.

The disclosure provides a two-cycle engine and an engine work machine. When a piston is located on the side of a bottom dead center, at a part corresponding to a notch part in the piston, an inner surface of the crank case protrudes toward an interior side to form a crank case first protruding part penetrating through the notch part toward the interior side. Meanwhile, the crank case at a part corresponding to a part without the notch part in the piston is not in a shape protruding toward the interior side. By assembling the piston and the crank case in such shapes, the piston is able to reciprocally move up and down without interfering with the crank case. In this case, by disposing the crank case first protruding part, the volume in the crank case is able to be reduced.

A green area maintenance system, includes: an autonomous mobile green area maintenance robot having a treatment tool, a cutting tool differing from the treatment tool, wherein the green area maintenance robot and the cutting tool are configured to allow fixing of the cutting tool to the green area maintenance robot, a user control device, an autonomous operation mode and a cutting operation mode, wherein in the autonomous operation mode the autonomous mobile green area maintenance robot with its treatment tool operates autonomously and the cutting tool is set out of operation, and wherein in the cutting operation mode the cutting tool is fixed to the green area maintenance robot and operable. The green area maintenance robot with its treatment tool and the cutting tool are controlled by a user via the user control device, and an operation mode switching device for switching between the autonomous operation mode and the cutting operation mode.

A green area maintenance system, includes: an autonomous mobile green area maintenance robot having a treatment tool, a cutting tool differing from the treatment tool, wherein the green area maintenance robot and the cutting tool are configured to allow fixing of the cutting tool to the green area maintenance robot, a user control device, an autonomous operation mode and a cutting operation mode, wherein in the autonomous operation mode the autonomous mobile green area maintenance robot with its treatment tool operates autonomously and the cutting tool is set out of operation, and wherein in the cutting operation mode the cutting tool is fixed to the green area maintenance robot and operable. The green area maintenance robot with its treatment tool and the cutting tool are controlled by a user via the user control device, and an operation mode switching device for switching between the autonomous operation mode and the cutting operation mode.

A trimmer head housing having a first part and a second part. The first and second housing parts are configured to be changed between: a) a first state wherein the first and second housing parts are separated from each other; and b) a second state wherein the housing parts are operatively connected to be movable together around an operating axis. The operatively connected housing parts are configured to support at least one cutting component that is configured to effect cutting as the operatively connected housing pars are turned around the operating axis. The trimmer head housing has interacting parts cooperating between the first and second housing parts and configured to allow the first and second housing parts to be operatively connected with the first and second housing parts in only a single angular relationship with respect to the operating axis.

The disclosure describes a cutting system for a harvesting header, which includes a transversely extending cutter bar, a transversely extending knife back, a knife section mounted to the knife back having a knife edge extending generally in a forward direction, a knife guard component having a front guard portion and a rear portion interconnected by a medial portion having a recess, the medial portion for receiving a lengthwise portion of the knife back with the knife section being received into, the knife section operable to move transversely into and out of a cutting slot in the front guard portion, a hold down component located between an upper surface of the rear portion of the knife guard component and an underneath surface of the cutter bar, and an attachment mechanism operable to secure the knife guard component and the hold down component to the underneath surface of the cutter bar.

The disclosure describes a cutting system for a harvesting header, which includes a transversely extending cutter bar, a transversely extending knife back, a knife section mounted to the knife back having a knife edge extending generally in a forward direction, a knife guard component having a front guard portion and a rear portion interconnected by a medial portion having a recess, the medial portion for receiving a lengthwise portion of the knife back with the knife section being received into, the knife section operable to move transversely into and out of a cutting slot in the front guard portion, a hold down component located between an upper surface of the rear portion of the knife guard component and an underneath surface of the cutter bar, and an attachment mechanism operable to secure the knife guard component and the hold down component to the underneath surface of the cutter bar.