Utility knife blades having multiple cutting portions and securing connections

摘要

A three-sided disposable cutting blade for use within a utility knife. The cutting blade features between three and six distinct cutting portions. The cutting blade may be rotated and flipped such that each cutting portion may be presented from the utility knife as the active cutting portion. Features of the cutting blade include a wear-coat indicator which is located at or near each cutting portion and indicates when a portion has been used; grippable locations on the body of the blade to increase the grippibility of the blade when removing and handling the blade; multiple mounting-hole orientations; and mass-reducing punch-outs which reduce cutting friction of the blade against the object being cut.

主权项

1. A disposable cutting blade for use in a utility knife with a housing having a mounting bolt and a stabilizing element, the blade comprising:
a generally planar body with three sides defining three distinct points, each of the sides including a center notch and each of the sides having a first cutting portion and a second cutting portion; said generally planar body including a first face, a second face, and a mounting hole at a center portion of the faces of the body to receive the mounting bolt of the knife; and wherein the blade is to be received in the knife housing so that the knife stabilizing element is received by one of the notches and one of the cutting portions is exposed and the blade is configured to be removed from the housing, rotated, and replaced within the housing that the stabilizing element is received in a different one of the notches and a different one of the cutting portions is exposed.