Mulcher with improved tooth design
AssigneeAttachment Technologies, Inc.
InventorJohn W. Edwards
Life of this patent
Estimating the term…
Abstract
A mulcher apparatus includes a tractor and a mulcher unit provided to the tractor. The mulcher unit includes a tooth assembly with a holder and a cutter element with a cooperating notch portion and cross bar arrangement. The notch portion can be retrofit to existing holder arrangements. The cutter element may include various features, to enhance cutting efficiency. For example, the cutter elements may include a double-ended structure, angle tab portions at each corner portion, carbide coatings, a pair of tip portions at each end with a space therebetween, and/or a generally H-shaped configuration.
Claims54
A tooth assembly for a mulcher apparatus, comprising:
- a holder including a base portion adapted to be connected to the mulcher apparatus and a head portion provided opposite the base portion, the head portion being provided with a cutter element receiving surface including at least one notch portion extending from one lateral side of the head portion to the other lateral side of the head portion;
- and
- a cutter element provided to the head portion of the holder, the cutter element including at least one cross bar engaged with the at least one notch portion of the holder, said cutter element including at least first and second pre-threaded bores, said at least one cross bar being positioned between the at least first and second pre-threaded bores.
A cutter element for a mulcher apparatus, comprising:
- a main body including a rear portion configured to be mounted on a cutter element receiving surface of a holder and a front portion including at least one cutter tip portion, said rear portion including at least two pre-threaded bores provided in the main body;
- and
- a cross bar provided to and extending from the rear portion of the main body, said cross bar being structured to engage with a notch portion on the holder, said cross bar being positioned between said two pre-threaded bores.
A mulcher apparatus comprising:
- a tractor with a plurality of wheels;
- a mulcher unit coupled to the tractor;
- a plurality of tooth assemblies, each said tooth assembly including a holder and a cutter element;
- and
- a drum with a plurality of rows of said tooth assemblies,
- wherein:
- adjacent tooth assemblies in each said row are circumferentially or angularly offset from one another so as to define an undulated cutting profile for each said row,
- tooth assemblies in adjacent rows are axially offset from one another,
- the drum includes about 8-10 of said tooth assemblies per linear foot of the drum, and the undulated cutting profile is substantially “M” or “W” shaped.
A cutter element for a mulcher apparatus, comprising:
- a main body including a rear portion configured to be mounted on a cutter element receiving surface of a holder and a front portion including paired first and second cutter tip portions, wherein the main body includes first and second opposed ends, each said end including one of said paired first and second cutter tip portions, each of said paired first and second cutter tip portions being contained within a common cutting plane for effecting substantially simultaneous cutting action in use, and further comprising a channel positioned between said first and second cutter tip portions.
A cutter element for a mulcher apparatus, comprising:
- a main body including a rear portion having a cross bar and being configured to be mounted on a cutter element receiving surface of a holder and a front portion including a plurality of cutter tip portions, wherein the main body is substantially rectangular and includes a plurality of corner portions with forwardly angled tab portions, each of said corner portions defining one of said citter tip portions.
A cutter element for a mulcher apparatus, comprising:
- a main body including a rear portion configured to be mounted on a cutter element receiving surface of a holder and a front portion including at least one cutter tip portion, wherein the main body has a generally H-shape with a cross component and two upright components, each of said upright components including first and second ends each provided with one said cutter tip portion, an aperture being provided between adjacent cutter tip portions to allow for the flow of debris through the space.
Dependencies are inferred from the claim text.