A trimmer can be converted from an existing cutting medium to an alternative tool without requiring removal of the trimmer head. A common upper receiver head, as sold by an original equipment trimmer manufacturer, incorporates design provisions to snugly allow an easy/comfortable fit for a series of uniquely adaptable and convertible cap attachments such as, monofilament systems, unique molded or shaped flexible line blades with optional cutting swath diameters, as well as other helpful devices that perform different functions beyond just cutting grass.

The disclosure relates to an assembly for a mower of a mowing or chopping machine, which comprises a tool carrier, which is formed with a carrier disk and which is configured to be mounted rotatably about an axis of rotation to a mower of a mowing or chopping machine; and cutting tools, which are each formed with a cutting blade located radially outwardly to the axis of rotation and a holding section located radially inwardly to the axis of rotation and which are detachably mounted to the carrier disk in an assigned carrier section, wherein the cutting tools are each mounted to the tool carrier by a mounting bolt, wherein the mounting bolt is in each case mounted to the cutting tools in a non-detachable manner. The disclosure furthermore relates to a replacement cutting tool and a mower for a mowing or chopping machine.

An agricultural vehicle includes a chassis and a header carried by the chassis. The header includes a cutterbar with at least one cutting unit. The at least one cutting unit includes a rotary driver; a rotatable disc coupled to the rotary driver; at least one knife mount coupled to a disc surface of the rotatable disc and including a locking portion biased toward the disc surface; and a knife locked in at least one direction by the locking portion, the knife defining at least one cutting edge.

A lawn mower capable of securing desired durability as well as suppressing a weight increase is provided. When prong portions on the periphery of a bottom disk are elastically deformed inward due to an external force applied thereto, the prong portions abut a cutting disk, so that the received external force is transferred to the cutting disk (that is, the external force is partially received by the cutting disk), and the displacement of the prong portions is restricted by the presence of the cutting disk.

A low-energy blade system having a quick-change attachment for a lawn maintenance tool is provided. The low-energy blade system requires a reduced amount of energy to rotate the blade system. The blade system includes a shell, a mounting plate attached to the shell, a plurality of quick-attach mechanisms, and a separate cutting blade attachable to each of the quick-attach mechanisms. Each quick-attach mechanism allows a cutting blade to be attached to the mounting plate without the need for external tools, such as screwdriver, wrench, ratchet, or the like.

A knife and blade for agricultural machines, in particular mower knife blades, straw chopper knives, corn header knives, feed mixer knives, loader wagon knives and baler knives, has at least one toothed cutting edge extending from a cutting edge beginning to a cutting edge end on a blade surface. The cutting edge has a straight or curved configuration and the blade surface has a mounting section. The toothing of the cutting edge is varied along its length with regard to the tooth pitch and/or the tooth geometry.

An arrangement includes an output shaft, a cutting head, at least one cutting tool arranged on the cutting head, and a hood. The cutting head is mounted on the output shaft by a screw element held in a rotationally fixed manner on the cutting head. The hood is held on the output shaft in a rotationally fixed manner, and has ribs in the inner region, and a first grip region in the outer region.

A trimmer can be converted from an existing cutting medium to an alternative tool without requiring removal of the trimmer head. A common upper receiver head, as sold by an original equipment trimmer manufacturer, incorporates design provisions to snugly allow an easy/comfortable fit for a series of uniquely adaptable and convertible cap attachments such as, monofilament systems, unique molded or shaped flexible line blades with optional cutting swath diameters, as well as other helpful devices that perform different functions beyond just cutting grass.

The present invention relates to a lawn mower robot, including an outer cover, an inner body positioned in the outer cover and having a plurality of wheels for traveling provided on both side surfaces thereof, a plurality of blades rotatably mounted on a bottom surface of the inner body to cut grass, electric devices mounted inside the inner body and including a battery, wheel driving motors, a blade driving motor, a plurality of ultrasonic sensor modules, rain sensors, a user interface (UI) module, and a universal serial bus (USB) port, and a waterproof unit to prevent penetration of water into the inner body or the electric devices, thereby improving waterproof performance.

A protection system for a rotary cutter, with the rotary cutter including a deck and one or more blade assemblies extending below the deck for cutting vegetation. The protection system comprises a protection annulus associated with one of the blade assemblies, with the protection annulus secured to a bottom surface of the deck and positioned between the deck and the blade assembly. The protection annulus has a width extending from an inner radius of the protection annulus to an outer radius of the protection annulus. The protection annulus has a height extending vertically downward from the bottom surface of the deck. The width of the protection annulus is greater than the height of the protection annulus.