Abstract

A harvester cutter 1 including a rotating cutter 10, the rotating cutter 10 including a blade 20, wherein; a leading edge 21 of the blade 20 is located further up a rotational 11 axis of the rotating cutter 10 than a trailing edge 22 of the blade 20 at any radial location on a cutting portion 23 of the blade 20 relative to the rotational axis 11 of the rotating cutter 10.

IPC Classes  ?

• A01D 34/73 - Cutting apparatus
• A01D 34/66 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters

Abstract

A harvester cutter (1) including a rotating cutter (10), the rotating cutter (10) including a blade (20), wherein; a leading edge (21) of the blade (20) is located further up a rotational (11) axis of the rotating cutter (10) than a trailing edge (22) of the blade (20) at any radial location on a cutting portion (23) of the blade (20) relative to the rotational axis (11) of the rotating cutter (10).

IPC Classes  ?

• A01D 34/66 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
• A01D 45/10 - Harvesting of standing crops of sugar cane
• A01D 45/02 - Harvesting of standing crops of maize
• A01D 33/06 - Haulm-cutting mechanisms
• A01D 91/02 - Products growing in the soil
• A01D 34/412 - Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
• A01D 21/04 - Digging machines with potato-picking implements with rotating picking tools
• A01F 29/22 - Arrangement of knife sharpening devices
• A01D 19/12 - Digging machines with centrifugal wheels, drums, or spinners with working tools arranged on an approximately vertical axis

Abstract

An apparatus comprising a pair of associated chopper drums, including a top chopper drum and a lower chopper drum. The chopper drum defines an axial cylindrical bore having a rotational axis into which is mounted a drive shaft (not shown) that is keyed radially to drive the chopper drum. Radially spaced from the rotational axis are a plurality of outwardly facing recesses defined by walls of a body of the chopper drum. Each recess extends longitudinally along the periphery of the chopper drum end-end to provide a recess for mounting a corresponding plurality of cutting blades. Each recess is defined by a longitudinally extending lower wall and an opposed and circumferentially spaced. The cross sectional profile of the chopper drum is generally consistent throughout its length and includes a plurality of ridges and troughs with the ridges built up to define therein the recesses, the ridges being interposed by the troughs. A higher side wall provides support for the cutting blade and is inclined relative to a plane extending radially outwardly from the rotational axis. The opposed smaller side wall supports a wedge clamp.

IPC Classes  ?

• A01D 45/10 - Harvesting of standing crops of sugar cane
• A01F 29/09 - Cutting apparatus specially adapted for cutting hay, straw or the like - Details

Abstract

An apparatus (10) comprising a pair of associated chopper drums (20), including a top chopper drum (21) and a lower chopper drum (22). The chopper drum (20) defines an axial cylindrical bore (25) having a rotational axis (26) into which is mounted a drive shaft (not shown) that is keyed radially to drive the chopper drum (20). Radially spaced from the rotational axis (26) are a plurality of outwardly facing recesses (30) defined by walls of a body of the chopper drum (20). Each recess (30) extends longitudinally along the periphery of the chopper drum end-end to provide a recess for mounting a corresponding plurality of cutting blades (35). Each recess is defined by a longitudinally extending lower wall (31) and an opposed and circumferentially spaced. The cross sectional profile of the chopper drum (20) is generally consistent throughout its length and includes a plurality of ridges (26) and troughs (27) with the ridges (26) built up to define therein the recesses 30, the ridges (24) being interposed by the troughs (27). A higher side wall (32) provides support for the cutting blade (35) and is inclined relative to a plane (36) extending radially outwardly from the rotational axis (26). The opposed smaller side wall (31) supports a wedge clamp (40).

IPC Classes  ?

• A01F 29/09 - Cutting apparatus specially adapted for cutting hay, straw or the like - Details
• A01D 45/10 - Harvesting of standing crops of sugar cane
• A01D 34/62 - Other details