초록 ▼

An improved ice skate blade sharpening system utilizing a powered rotating grinding wheel. The system has an adjustable guide for preventing canting and twisting of the blade as it is sharpened, and applies a constant cutting pressure to the edge irrespective of the force applied to the skate by the

An improved ice skate blade sharpening system utilizing a powered rotating grinding wheel. The system has an adjustable guide for preventing canting and twisting of the blade as it is sharpened, and applies a constant cutting pressure to the edge irrespective of the force applied to the skate by the operator. The system also has a dressing mechanism utilizing a diamond-tipped stylus to maintain the proper curvature of the grinding wheel. The grinding wheel has a central plane perpendicular to the rotational axis, and is mounted to a drive shaft of an electric motor attached to a sliding block biased toward a first position by springs. The guide includes two opposing bearing surfaces spaced a distance apart and a mechanism for adjusting the distance between the bearing surfaces. The central plane of the grinding wheel lies between the bearing surfaces.

대표청구항 ▼

A system for sharpening an elongated blade of an ice skate, the blade having a narrow width extending outwardly on each side of a first central plane, the system including: (a) a grinding wheel having a rotational axis and a grinding surface extending outwardly on each side of a second central plane

A system for sharpening an elongated blade of an ice skate, the blade having a narrow width extending outwardly on each side of a first central plane, the system including: (a) a grinding wheel having a rotational axis and a grinding surface extending outwardly on each side of a second central plane, said grinding wheel further having a center and a second axis passing through the center and lying in said second central plane of said grinding wheel; and (b) means for guiding the blade across the surface of the grinding wheel with said first central plane of the blade substantially aligned with said second axis of said grinding wheel said guiding means including: (i) at least a first beating surface and a second beating surface; wherein each of the first and second beating surfaces is formed by at least a pair of cylindrical roller beatings, each roller bearing having an axis of rotation and a race with an exterior surface, said exterior surfaces of each pair of roller beatings respectfully forming said first and second bearing surfaces, and wherein said guiding means further includes means for aligning the axes of said roller bearings in parallel, said bearing surfaces formed by said pair of cylindrical roller bearings preventing twisting and canting of said blade, (ii) means for mounting the second beating surface opposite the first bearing surface at a distance spaced therefrom, said second axis of the grinding wheel lying between said bearing surfaces, said mounting means including means for adjusting the distance between the beating surfaces to form a sliding fit between the beating surfaces and the blade when the blade is inserted with the narrow width between the beating surfaces to thereby restrict the blade to sliding movement.