US 8,893,461 B2Granted

Knife and counter knife in machine disk

AssigneeBlount, Inc.

InventorWalter Nikkel

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Abstract

A rectangular counter knife with a larger diameter hole, the counter knife has two lateral, longitudinal, parallel, rectangular and vertical walls inferiorly forming a rectangular recess, the two rectangular, inferior and transversal guides of the rotating disk, support the rectangular knife, adjusting a hex-nut in a larger diameter hole, coincident to the hole, receiving these holes on inferior-superior direction, a hex-head screw initially by-pass one of the two holes centralized along one rectangular knife with two side cutting edges and their ends have, a constructive variant comprising a rectangular knife with a longitudinal, central and oblong opening, with two central, opposite and semi-circular projections forming a circular central opening in the middle of the knife; the rectangular knife has two side cutting edges and two cutting edges on the ends.

Claims12

Dependent claims

A knife/counter knife assembly for a sugar cane harvesting machine comprising:

a counter knife configured to attach to a rotating disc of the sugar cane harvesting machine between two transverse guides of the rotating disc, the counter knife comprising two longitudinal, parallel, vertical walls on opposite lateral edges of the counter knife, the walls defining a cavity therebetween, wherein each wall is a single continuous wall that runs the longitudinal length of the counter knife, and wherein the walls are configured to rigidly laterally support a knife within the cavity;
and
the knife comprising:
a first cutting end and a second cutting end;
a first cutting side and a second cutting side;
and
a first hole and a second hole, both the first hole and the second hole being located along the longitudinal axis of the knife and generally equidistant from the first cutting side and the second cutting side;
wherein the first hole is located closer to the first cutting end than the second hole, and the second hole is located closer to the second cutting end than the first hole;
and
the knife is configured to attach to the counter knife using only a single bolt through one of the first hole and the second hole.

7 more elements

Dependencies are inferred from the claim text.