Patent ID: 8851961
Filing Date: 2014-10-07
Classification: A63C

Abstract:
1. A sharpener for use in sharpening a corner edge on a snow travel member wherein the corner edge is between a bottom face and a side face of the snow travel member, the sharpener comprising: a housing; an orienting structure including a bottom face engagement surface and a side face engagement surface, wherein the engagement surfaces are positioned to engage the bottom face and side face of the snow travel member to orient the corner edge along a longitudinal axis, wherein a relative angle exists between the engagement surfaces; a sharpening structure positioned for sharpening the corner edge of the snow travel member during relative longitudinal movement between the sharpening structure and the snow travel member when the corner edge is oriented by the orienting structure along the longitudinal axis; and an angle adjustment mechanism operable to move at least one of the engagement surfaces so as to adjust the relative angle between the engagement surfaces, wherein the sharpening structure includes at least one side face sharpening member having at least one side face sharpening surface positioned to engage a side face of a snow travel member, wherein the at least one side face sharpening member is connected to the sharpening structure body by at least one side face sharpening member biasing member, wherein the at least one side face sharpening structure is abrasive; wherein the sharpening structure includes at least one bottom face sharpening member having at least one bottom face sharpening surface positioned to engage a bottom face of the snow travel member, wherein a selected angle is provided between the at least one side face sharpening member and the at least one bottom face sharpening member, wherein the at least one bottom face sharpening member is connected to the sharpening structure body by at least one bottom face sharpening member biasing member, wherein the at least one bottom face sharpening structure is abrasive; wherein positioning of the snow travel member on the side and bottom face engagement surfaces causes independent movement of the at least one bottom face sharpening member to generally align with the bottom face engagement surface against a biasing force of the at least one bottom face sharpening member biasing member, and at the same time further causes independent movement of the at least one side sharpening surface to generally align with the side face engagement surface against a biasing force of the at least one side face sharpening member biasing member to adjust the angle between the at least one side face sharpening member and the at least one bottom face sharpening member.