CPC A01F 15/145 (2013.01) | 10 Claims |
1. A twine disk configured for a mechanical knotter of a hay baler, the twine disk comprising:
a vee shaped V-notch extending inward from an outer periphery of the twine disk, the V-notch including a mouth and a vertex;
a first straight notch edge of the V-notch formed in a substantially straight-line and terminating at the vertex, the vertex comprising a bottom curved portion of the V-notch;
a hook portion at the mouth of the V-notch, the hook portion interconnecting the outer periphery of the twine disk and the first straight notch edge of the V-notch, wherein the hook portion includes a straight hook edge and a concave hook edge, wherein the straight hook edge intersects the concave hook edge at a rounded terminus;
a second straight notch edge of the V-notch formed in a substantially straight-line from the outer periphery of the twine disk to the bottom curved portion of the V-notch, the second straight notch edge forming a vee angle with the first straight notch edge of between 45 degrees and 120 degrees;
wherein the V-notch is configured to accept and hold two twine strands and alternatively four twine strands during a knotting process of the hay baler, such that a lowermost one of the two twine strands and alternatively a lowermost one of the four twine strands is wedged against the first straight notch edge and the second straight knot edge when within the V-notch;
wherein the V-notch defines a first width (Bw) at 15% above the vertex and defines a second width (Vw) across the mouth of the V-notch, inclusive of the hook portion, wherein a ratio of the first width (Bw) relative to the second width (VW) is not more than 0.45.
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