Spike for harvester heads and debarker rollers
AssigneeséQuipements Boifor Inc., éQuipement Fabmec Inc.
InventorsMarc Lepage, Nicolas Fortier
Life of this patent
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Abstract
A feed roll spike for mounting to a surface, i.e. the outer surface of a feed roller of a harvester head or a debarking machine. The feed roll spike comprises a substantially truncated cone shape base having a top side, a bottom side and an axis; and evenly-spaced identical projections extending upwardly from the top side of the base. The space between the projections defines channels.
Claims17
A feed roll spike for mounting to a surface of a feed roll, the feed roll spike comprising:
- a truncated cone shape base having a top side and a bottom side, wherein the bottom side has a larger area than the top side and provides an interface with the surface of the feed roll;
- and
- evenly-spaced identical projections extending upwardly from the top side of the base, wherein space between the projections defines channels,
- wherein the feed roll spike is mounted to the surface of the feed roll;
- and
- wherein a ratio of surface area of the top side covered by the projections over surface area of the top side covered by the channels is between about 2 over 5 and 4 over 5.
A feed roll spike for mounting to a surface of a feed roll, the feed roll spike comprising:
- a truncated cone shape base having a top side and a bottom side, wherein the bottom side has a larger area than the top side and provides an interface with the surface of the feed roll;
- and
- evenly-spaced identical projections extending upwardly from the top side of the base, wherein space between the projections defines channels,
- wherein the projections have three faces, and
- wherein the feed roll spike further comprises a vertical axis which is perpendicular to the top side and the bottom side, wherein at least one of the three faces is at an angle ALPHA of between about 5 degrees and 60 degrees relative to the vertical axis.
A feed roll spike mounted to a surface of a feed roll, the feed roll spike comprising:
- a base having a top side and a bottom side, wherein the bottom side is mounted directly to the surface of the feed roll;
- projections extending upwardly from the top side of the base;
- and
- channels having a width and a height, the channels extending radially between the projections over the top side,
- wherein the width of the channels between the projections is constant at the base, and increases as a distance from the base increases;
- and
- wherein a ratio of surface area of the top side covered by the projections over surface area of the top side covered by the channels is between about 2 over 5 and 4 over 5.
Dependencies are inferred from the claim text.