The present disclosure relates to cutting tools for mounting onto a rotary drum or disc of a forestry equipment for cutting ligneous material, the cutting tool comprising: a coupling side for mounting onto the rotary drum or disc; a cutting side opposite the coupling side, the cutting side comprising a concave surface forming a pocket and at least two cutting edges; and at least two lateral sides extending from the coupling end to the cutting end. Each of the cutting edges comprises a plurality of serrations defining valleys or depressions in the concave surface of the cutting side, the valleys extending at different angles relative to a corresponding one of the cutting edges.
A01G 23/06 - Uprooting or pulling up treesExtracting or eliminating stumps
B02C 18/06 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives
3.
CUTTING TOOL AND TOOL HOLDER FOR A ROTARY CUTTING DEVICE
The present disclosure relates to a cutting tool system comprising a tool holder and a cutting tool. The tool holder includes a base for mounting onto a rotary drum or disc and a body for removably coupling to the cutting tool. The cutting tool is for size-reducing a material and has a first side and a second side. The cutting tool includes a plurality of cutting edges that are selectively moveable into and out of a cutting path of the rotary drum or disc. The first and second sides each have at least one cutting edge, such that each of the first and second sides are configured to be a leading side of the cutting tool during use. This allows the cutting tool to be rotated and/or reversed, such that a single cutting tool provides several cutting edges and increases the wear or erosion life thereof.
A mulcher head comprises a frame and a culling drum rotationally connected to the frame. The cutting drum comprises a plurality of tool holders each configured to receive one of a plurality of culler or culling tools with at least one edge for shredding the material, and a bite limiter assembly operatively coupled to the outer surface of the tubular body. The bite limiter assembly comprises at least one guide plate coupled to the tubular body at an angle to a rotational axis of the culling drum. The bite limiter assembly is configured to restrict engagement of each of the plurality of cutting tools with the material. A culling drum is also provided. The tool holders may comprise a recess and a wedge, the culling tools being removably coupled to a corresponding tool holder with an interference fit between each of the culling tools and the wedge.
The present disclosure relates to a cutting tool system comprising a tool holder and a cutting tool. The tool holder includes a base for mounting onto a rotary drum or disc and a body for removably coupling to the cutting tool. The cutting tool is for size-reducing a material and has a first side and a second side. The cutting tool includes a plurality of cutting edges that are selectively moveable into and out of a cutting path of the rotary drum or disc. The first and second sides each have at least one cutting edge, such that each of the first and second sides are configured to be a leading side of the cutting tool during use. This allows the cutting tool to be rotated and/or reversed, such that a single cutting tool provides several cutting edges and increases the wear or erosion life thereof.
A01D 34/412 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
A01D 34/42 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a horizontal axis, e.g. cutting-cylinders
The present disclosure relates to cutting tools for mulcher and mower heads and cutting drums or discs thereof. Specifically, this disclosure relates to cutting tools with features to increase the wear or erosion life of the cutting tool. There is provided a cutting tool configured to size-reduce material that has a body having three sets of opposing sides and at least one cutting edge on a leading one of the opposing sides. The cutting edge(s) can include edge surfaces extending in a plane that is different from an edge plane of the cutting edge. In some implementations, the cutting edge has grooves extending in a direction that is perpendicular or at an angle to the cutting edge.
A01D 34/42 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a horizontal axis, e.g. cutting-cylinders
The present disclosure relates to forestry mulching or mowing heads with an upper frame and a lower frame having a rotatable cutting drum. The lower frame is pivotably mounted to the upper frame via a tilting mechanism. The tilting mechanism can include an actuator configured to pivot or tilt the lower frame relative to the upper frame. The tilting mechanism can include a bracket and a link that provides at least five independent degrees of freedom to pivot or rotate the lower frame relative to the upper frame. The tilting mechanism can provide a tilt capability of up to 180° while maintaining a pivot distance to cutting diameter ratio of less than 1 (the pivot distance being a distance between the frame pivot point and a rotational axis of the cutting drum and the cutting diameter being a diameter between cutting edges of the cutting tools on the cutting drum).
A01D 34/43 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a horizontal axis, e.g. cutting-cylinders mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
There is provided a rotating assembly configured for use with a stump grinder, a mulcher, and/or a feller buncher. The rotating assembly includes a disc with a plurality of recesses around its circumference that can receive a feller cutting tool or a grinder cutting tool and/or tool apertures that can receive a mulcher cutting tool. The disc can couple to different types of cutting tools, such that cutting paths formed by the cutting tools extend in an axial direction and/or radial direction from the disc. The cutting tools can be placed at varying distances from a face or a circumference of the disc. The cutting tools can be coupled to the disc with a wedge, a fastener, and/or an interference fit to allow for easy removal and/or replacement. The cutting tools can be configured as a cutting tool holder with a removably couplable cutting edge.
A mulcher head comprises a frame and a cutting drum rotationally connected to the frame. The cutting drum comprises a plurality of tool holders each configured to receive one of a plurality of cutter or cutting tools with at least one edge for shredding the material, and a bite limiter assembly operatively coupled to the outer surface of the tubular body. The bite limiter assembly comprises at least one guide plate coupled to the tubular body at an angle to a rotational axis of the cutting drum. The bite limiter assembly is configured to restrict engagement of each of the plurality of cutting tools with the material. A cutting drum is also provided. The tool holders may comprise a recess and a wedge, the cutting tools being removably coupled to a corresponding tool holder with an interference fit between each of the cutting tools and the wedge.
A mulcher head comprises a frame and a cutting drum rotationally connected to the frame. The cutting drum comprises a plurality of tool holders each configured to receive one of a plurality of cutter or cutting tools with at least one edge for shredding the material, and a bite limiter assembly operatively coupled to the outer surface of the tubular body. The bite limiter assembly comprises at least one guide plate coupled to the tubular body at an angle to a rotational axis of the cutting drum. The bite limiter assembly is configured to restrict engagement of each of the plurality of cutting tools with the material. A cutting drum is also provided. The tool holders may comprise a recess and a wedge, the cutting tools being removably coupled to a corresponding tool holder with an interference fit between each of the cutting tools and the wedge.
A mulcher head for shredding a material is provided. The mulcher head comprises an upper frame configured to be mountable to a movable working arm of a vehicle; a lower frame pivotably coupled to the upper frame around a frame pivot point; a tilting mechanism configured to rotate the lower frame relative to the upper frame around the frame pivot point, the tilting mechanism comprising an actuator pivotally coupled at a first end to the lower frame and at a second end to the upper frame; and a cutting drum rotationally coupled to the inner frame such that tilting the inner frame tilts the cutting drum, wherein the cutting drum comprises cutting tools positioned around an outside thereof that are configured to shred the material.
A01D 34/43 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a horizontal axis, e.g. cutting-cylinders mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
A01D 34/44 - MowersMowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a horizontal axis, e.g. cutting-cylinders mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
A01G 3/00 - Cutting implements specially adapted for horticultural purposesDelimbing standing trees
A forestry device, for example, a bunching and felling head configured to group trees, includes a support frame and an accumulation area located proximate to the support frame. The device includes at least a first arm rotatable relative to the support frame, to gather trees, and at least one accumulating arm rotatable relative to the support frame, to secure one or more gathered trees in the accumulation area and to retract from the accumulation area to allow a newly gathered tree to be added in the accumulation area. The one or more accumulating arm(s) include(s) an inner arm pivotable relative to the support frame and an outer arm pivotable relative to the inner arm. The outer arm has at least one articulation dividing the outer arm into at least a proximate member and a distal member.
Forestry machinery and equipment, namely, tree harvesting machines; machine parts, namely, saw teeth for power operated machines for tree felling, harvesting and mulching, none of the aforementioned machines being hand tools or parts for hand tools
(1) Forestry machinery and equipment, namely tree harvesting machines; industrial machine parts, namely, saw tooth for power operated machines for tree felling, harvesting, and mulching.
(1) Forestry machinery and equipment, namely tree harvesting machines; tree harvester and processor, namely, device to fell, delimb, buck, top and pile trees.
A cutting disk for a rotary cutting machine includes a disk body having a central axis of rotation and a circumferentially extending outer periphery. A plurality of circumferentially spaced apart cutting teeth is mounted to the outer periphery of the disk body. A chip pocket is defined in the circumferential outer periphery of the disk body between each of the circumferentially spaced apart cutting teeth. Each chip pocket is formed by a chip clearance surface extending radially inwardly into the disk body to form the chip pocket between circumferentially adjacent cutting teeth. The chip pocket is adapted to receive a tooth-produced chip therein, thereby providing more room for chip discharge and thus reducing disk wear.
A tooth for a circular saw or a mower drum that can be used to cut standing trees or brush and undergrowth. The tooth has four cutting edges arranged in a first pair of opposed cutting edges that are generally straight and a second pair of opposed cutting edges that are generally concave. The tooth is mounted in a holder in a first or second cutting position that orients a cutting edge of the first or second pair to physically contact and effect a cutting method to a cuttable material. In a first cutting method, a generally straight cutting edge contacts the material, resulting in a slicing action. In a second cutting method, a generally concave cutting edge contacts the material, resulting in a gouging action. Teeth in the circular saw or brush mower alternate between first and second cutting positions, allowing both cutting methods to be applied to cuttable material.
A cutting tooth assembly for a rotary cutting machine is described. The assembly includes a tooth holder adapted for mounting about the periphery of a rotating element of the rotary cutting machine, and a reversible cutting tooth, removably mounted to said tooth holder. The cutting tooth has opposed first and second cutting faces which are spaced apart along a central tooth axis extending therebetween. Each of the first and second cutting faces at least partially defines more than two cutting edges, and the cutting tooth is reversible by 180 degrees about a transverse tooth axis to dispose a selected one of the first and second cutting faces in an operable cutting position when mounted to the tooth holder.
A rotary cutting machine is described and includes a circular rotatable element, a plurality of tooth holders disposed on the circular rotatable element at spaced apart locations about its periphery, and at least one reversible cutting tooth removably fastened to each tooth holder such that at least one cutting edge is disposed in a operable cutting position. Each cutting tooth includes opposed first and second cutting faces spaced apart along a central tooth axis extending therebetween. Each of the first and second cutting faces at least partially defines at least four of the cutting edges. The cutting tooth is reversible by 180 degrees about a transverse tooth axis such that it is mountable on the tooth holder in at least eight different positions, each of the positions providing a different selected one of the cutting edges in the operable cutting position.
A rotary cutting machine comprises a circular rotating element having a transverse axis of rotation and which is mounted to the rotary cutting machine for rotation about the axis of rotation. A plurality of cutting teeth are mounted to the circular rotating element at spaced apart locations about its circumferential periphery. The cutting teeth are reversible and removably fastened to the circular rotating element. Each cutting tooth includes opposed first and second cutting faces spaced apart by lateral surfaces extending therebetween. The first and second cutting faces define at least four of the cutting edges thereon, such that the cutting teeth are selectively mountable on the circular rotating element in any one of at least eight different positions, each of the positions providing a different one of the cutting edges in the operable cutting position.
A replaceable saw tooth for a rotary cutting machine. The saw tooth comprises more than two cutting edges on each of two opposed faces thereof. More specifically, the saw tooth may comprise a body having two cutting faces disposed opposite each other and spaced apart by at least four side faces which are each parallel to an opposite one of the side faces. The side faces are parallel to a central axis extending between the two cutting faces. Four cutting edges are defined between the side faces and each of the two cutting faces.
