Hand-held sharpener with multiple abrasive rods to sharpen a cutting edge of a tool

摘要

A multi-rod hand-held sharpener includes a handle with an outer grip surface for a hand of a user, a first abrasive rod having a first outer abrasive surface with a first abrasiveness level, and a second abrasive rod having a second outer abrasive surface with a second abrasiveness level different from the first abrasiveness level. At least one guide surface extends toward the first sharpening surface at a selected guide angle non-orthogonal to the first sharpening surface. The user contactingly engages a side of the tool against the guide surface and a cutting edge of the tool against the first abrasive surface, and then advances the side of the tool away from the guide surface and the cutting edge against the first abrasive surface while maintaining the tool at the selected guide angle. An optional second guide adjacent the second abrasive surface at a different angle facilitates micro-beveling.

主权项

1. A hand-held sharpener, comprising:
a handle having opposing first and second ends and an outer grip surface disposed between said ends adapted to be gripped by a hand of a user during use of the sharpener to sharpen a cutting tool; a first abrasive rod adapted to extend from the handle in a first direction and having a first outer abrasive surface with a first abrasiveness level; a second abrasive rod adapted to extend from the handle in a second direction and having a second outer abrasive surface with a second abrasiveness level different from the first abrasiveness level; and a first guide surface coupled to the handle comprising a line contact portion that linearly extends toward the first sharpening surface at a single selected first guide angle non-orthogonal to the first sharpening surface, the first guide surface adapted to facilitate orientation of the tool by the user at said first guide angle by contactingly engaging a side of the tool against the line contact portion of the first guide surface and a cutting edge of the tool against the first abrasive surface, the first guide surface further adapted to facilitate movement of the side of the tool away from the first guide surface and sliding advancement of the cutting edge against the first abrasive surface by the user while the user maintains the tool at the first guide angle; and a second guide surface coupled to the handle comprising a line contact portion that linearly extends toward the second sharpening surface at a single selected second guide angle non-orthogonal to the second sharpening surface, the second guide angle greater than the first guide angle, the second guide surface adapted to facilitate orientation of the tool by the user at the second guide angle by contactingly engaging a side of the tool against the line contact portion of the second guide surface and a cutting edge of the tool against the second abrasive surface, the second guide surface further adapted to facilitate movement of the side of the tool away from the second guide surface and sliding advancement of the cutting edge against the first abrasive surface by the user while the user maintains the tool at the second guide angle.