| CPC E02F 9/2883 (2013.01) [E02F 3/8152 (2013.01); E02F 9/28 (2013.01); E02F 9/2858 (2013.01)] | 20 Claims |
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1. A top cover for protecting a base edge comprising:
a rear attachment portion defining:
a first fastener receiving void,
a second fastener receiving void,
a third fastener receiving void,
a vertical direction of assembly,
a lateral direction that is perpendicular to the vertical direction of assembly, and
a direction of material flow that is perpendicular to the vertical direction of assembly and the lateral direction,
the rear attachment portion including a rear edge disposed along the direction of material flow;
a forward ramp portion that extends:
forwardly from the rear attachment portion along the direction of material flow, and
vertically downwardly forming a front wear edge;
a top male angled surface that extends from the rear edge to the front wear edge; and
a bottom female angled surface that extends from the rear edge to the front wear edge,
wherein the first fastener receiving void is disposed along the direction of material flow between the forward ramp portion and the rear edge, and
wherein the top male angled surface defines:
a first material flow groove that extends along the direction of material flow,
a second material flow groove, and
a sloping surface that is disposed in front of the second fastener receiving void along the direction of material flow and is disposed laterally adjacent to the first material flow groove,
wherein a different sloping surface is disposed to rear of the second fastener receiving void along the direction of material flow,
wherein the different sloping surface is disposed laterally adjacent to the second material flow groove,
wherein the different sloping surface is disposed laterally adjacent a third material flow groove that is disposed laterally between the second fastener receiving void and the third fastener receiving void, and
wherein the first material flow groove includes a flow ramp.
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