Lawn mower blade sharpener apparatus

A lawn mower blade sharpener apparatus connectable to a blade member and a support plate on a bench grinder assembly to achieve a blade edge sharpening operation, comprising:

• (a) a stationary grinder attachment assembly connected to the support plate on the bench grinder assembly;
• (b) a movable blade attachment assembly connected to the blade member and mounted on said stationary grinder attachment assembly for reciprocal longitudinal movement;
• (c) said stationary grinder attachment includes a main support tube having grinder clamp members secured thereto;
• (d) said main support tube having a cylindrical main body section and a slot section extended the length of said main body section;
• (e) said movable blade attachment assembly having a main support rod with blade connector clamps thereon;
• (f) said main support rod includes a laterally extended anchor flange;
• (g) said main support rod mounted in said main body section for longitudinal and reciprocal movement therein;
• (h) said anchor flange slidably engages said slot section on said main support tube to limit movement thereof longitudinally and prevent rotational movement of said movable blade attachment assembly when mounted within said stationary grinder attachment assembly;
• and
• (i) said blade connector clamps are of generally U-shape including a first plate member;
• a second plate member;
• and spacer plate members clamped against said anchor flange by a connector member and having an anchor member mounted within said second plate member and engagable with the blade member for releasably connecting same thereto for the blade edge sharpening operation;
• whereby said movable blade attachment assembly holds a blade edge of the blade member at a proper angle relative to a grinder wheel of the bench grinder assembly and reciprocates within said stationary grinder attachment assembly to achieve the sharpening operation the entire length of the blade edge.