Forged clearing wheel for agricultural residue
First Claim
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1. A clearing wheel for agricultural residue, said clearing wheel comprising:
- a hub defining a central axis about which the clearing wheel can be rotated in use; and
a plurality of cutting teeth projecting radially outwardly from the hub to intercept and resituate residue upon the clearing wheel'"'"'s being rotated about its central axis,there being at least a first and second of said teeth,said first tooth having an internal grain pattern running in a first direction,said second tooth having an internal grain pattern running in a second direction,whereby said first and second directions are transverse to each other,said first and second teeth being formed as one piece with at least a portion of the hub.
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Abstract
A clearing wheel for agricultural residue. The wheel has a hub defining a central axis, about which the cleaning wheel can be rotated in use, and a plurality of cutting teeth projecting radially outwardly from the hub to intercept and resituate residue upon the clearing wheel'"'"'s being rotated about its central axis. At least a first and second of the teeth have an internal grain pattern running in first and second transverse directions. The invention is also directed to a method of making a clearing wheel by a forging process.
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Citations
24 Claims
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1. A clearing wheel for agricultural residue, said clearing wheel comprising:
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a hub defining a central axis about which the clearing wheel can be rotated in use; and a plurality of cutting teeth projecting radially outwardly from the hub to intercept and resituate residue upon the clearing wheel'"'"'s being rotated about its central axis, there being at least a first and second of said teeth, said first tooth having an internal grain pattern running in a first direction, said second tooth having an internal grain pattern running in a second direction, whereby said first and second directions are transverse to each other, said first and second teeth being formed as one piece with at least a portion of the hub. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A clearing wheel for agricultural residue, said clearing wheel comprising:
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a hub defining a central axis about which the clearing wheel can be rotated in use; and a plurality of cutting teeth projecting radially outwardly from the hub to intercept and resituate residue upon the clearing wheel'"'"'s being rotated about its central axis, there being at least a first and second of said teeth, said first tooth having an internal grain pattern running in a first direction, said second tooth having an internal grain pattern running in a second direction, whereby said first and second directions are transverse to each other, wherein said teeth and hub are formed by a forging process, said first and second teeth and entire hub being formed as one piece. - View Dependent Claims (13, 14, 15, 16)
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17. A method of manufacturing a wheel for clearing agricultural residue, said method comprising the steps of:
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providing a predetermined amount of metal material; and forging the predetermined amount of metal material to define at least a portion of a hub having a central axis about which the clearing wheel can be rotated in use and a plurality of cutting teeth formed as one piece with the hub portion and projecting radially outwardly from the hub to intercept and resituate residue upon the clearing wheel'"'"'s being rotated about its central axis, said forging step further comprising the step of producing a first grain pattern running in a first direction in a first one of the plurality of cutting teeth and a second grain pattern running in a second direction in a second one of the plurality teeth, with the first and second directions being transverse to each other. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A method of manufacturing at least a portion of a wheel for clearing agricultural residue, said wheel having a hub defining a central axis about which the clearing wheel can be rotated in use and a plurality of cutting teeth, said method comprising the steps of:
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providing a predetermined amount of metal material; and compressing the predetermined amount of metal material to thereby cause the metal material to expand radially in two transverse directions to define first and second elongate cutting teeth that are joined together by and defined as one piece with at least a portion of the hub and have their lengths projecting in said first and second transverse directions.
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Specification