US 7,118,466 B2 · Scissor sharpening machine

Abstract

The scissor sharpening machine includes a honing disc with a curved blade guide and a blade clamp assembly which slides axially along the blade guide. The curvature of the blade guide corresponds to the conventional curvature along the lengths of the blades of a pair of high quality scissors or shears, and assures that they are sharpened properly. The blade clamp assembly includes a series of predetermined stops to set the proper bevel angle during the sharpening process. However, the blade may be rocked about its longitudinal axis to the limit set by the stop, in order to provide a convex curvature to the blade edge if so required. The apparatus may include a cabinet with motor controls and other components, and the blade guide and blade clamp assemblies may be adjusted and repositioned to allow sharpening of either left hand or right hand scissors and shears.

Claims20

Dependent claims

A scissor sharpening machine, comprising:

a base;
a guide bar track disposed upon said base;
a linearly adjustable, curved guide bar disposed upon said guide bar track;
a blade clamp assembly slidably mounted upon said guide bar, and restricted to axial and circumferential motion relative to said guide bar;
and
a motorized blade sharpening disc extending from said base and adjacent to said guide bar track, said guide bar, and said blade clamp assembly.

3 more elements

Dependencies are inferred from the claim text.

Scissor sharpening machine

Life of this patent

Scissor sharpening machine

Life of this patent

Abstract

Claims20