| 摘要 |
A bench-mounted skate sharpening device embodying a base plate on which there is mounted an electric motor having a drive shaft which carries a rotary abrasive grinding wheel. A casing on the base plate encloses the grinding wheel and has an opening in its top wall which exposes a limited portion of the grinding wheel and renders the latter accessible for application thereto of a skate blade. A cradle member which is capable of limited oscillation within the opening adjustably receives thereon a skate blade guide assembly which defines a guide slot through which the skate blade to be sharpened is manually pushed longitudinally in order to draw the edge of the blade progressively and transversely across the periphery of the grinding wheel, the assembly being so designed that the lateral frictional thrust of the grinding wheel against the blade tends to bring the latter into coincidence with the general plane of the wheel. Micrometer-type adjustment is provided for shifting the skate blade guide assembly laterally on the cradle member in order to compensate for skate blades of varying thicknesses. The base plate, when loosely positioned on a bench or other subjacent supporting surface, is capable of limited rocking movement thereon and is spring-biased in a direction so that it will yield to the downward pressure exerted by the skate blade on the grinding wheel. |
