Blade sharpening device

Abstract

The invention provides a blade sharpening device designed for sharpening a blade for a uniform sharpening of the edge thereof. Generally, the blade sharpening device includes a base, a guide, a carriage, and a blade holder. The blade holder secures the blade while being sharpened. The blade holder is connected to the guide which is movable relative to the base. The base includes a material that receives an impression of a blade to define a blade contour and a grinding medium which provides an abrasive surface. The carriage interacts with the guide to define a sharpening path substantially aligning with the blade contour. The carriage and the guide direct the movement of the abrasive surface along the contour of the blade for a uniform sharpening of the edge thereof.

1 . A blade sharpening device, comprising:
 a base, said base having an abrasive surface for sharpening a blade;   a guide movable relative to the base, said guide including a blade holder for holding the blade;   a carriage containing a means for interacting with the blade to define a sharpening path substantially aligning with the blade contour;   whereby said guide and carriage direct the movement of the abrasive surface along the contour of the blade for a uniform sharpening of the edge thereof.   
     
     
         2 . The blade sharpening device of  claim 1 , further comprising:
 means for sharpening along a tangent line of the blade relative to the abrasive surface.   
     
     
         3 . The blade sharpening device of  claim 1 , further comprising:
 means for adjusting degree of material removed from the blade.   
     
     
         4 . The blade sharpening device of  claim 1 , further comprising:
 means for adjusting angle at which blade is sharpened.   
     
     
         5 . A blade sharpening device, comprising:
 a base, said base having an abrasive surface for sharpening a blade;   a carriage containing a means for interacting with a blade to define a sharpening path substantially aligning with the blade contour;   a guide movable relative to the base;   a blade holder for securing the blade while being sharpened connected to the guide; and   whereby the guide and the carriage direct the movement of the abrasive surface along the contour of the blade for a uniform sharpening of the edge thereof.   
     
     
         6 . The blade sharpening device of  claim 5 , further comprising:
 the base including an upper base and a lower base, the upper base movable relative to the lower base.   
     
     
         7 . The blade sharpening device of  claim 6 , further comprising:
 a dial mechanism and a locking mechanism which control the movement of the upper base relative to the lower base.   
     
     
         8 . The blade sharpening device of  claim 6 , wherein the upper base includes a material that receives an impression of a blade defining a blade contour. 
     
     
         9 . The blade sharpening device of  claim 8 , wherein the material is defined as one or more tracers. 
     
     
         10 . The blade sharpening device of  claim 9 , wherein the one or more tracers have defined grooves related to a plurality of predetermined angles for sharpening the edge of the blade. 
     
     
         11 . The blade sharpening device of  claim 5 , wherein the guide includes a first guide and a second guide. 
     
     
         12 . The blade sharpening device of  claim 11 , wherein the first guide is rotatably movable relative to the base. 
     
     
         13 . The blade sharpening device of  claim 11 , wherein the second guide is attached to the base. 
     
     
         14 . The blade sharpening device of  claim 12 , wherein the first guide includes a pivoting arm connected to the carriage and the blade holder. 
     
     
         15 . The blade sharpening device of  claim 5 , wherein the second guide includes a moving rail attached to the base. 
     
     
         16 . The blade sharpening device of  claim 5 , wherein the blade holder is rotatably movable relative to the guide. 
     
     
         17 . The blade sharpening device of  claim 5 , further comprising:
 a grinding medium attached to the base, the grinding medium including one or more abrasive or non-abrasive surfaces.   
     
     
         18 . The blade sharpening device of  claim 17 , wherein the one or more abrasive or non-abrasive surfaces are interlocked. 
     
     
         19 . A blade sharpening device, comprising:
 a base, said base including a material that receives an impression of a blade defining a blade contour, said base having an abrasive surface for sharpening the blade;   a guide slidably movable relative to the base;   a carriage containing a means for interacting with the guide to define a sharpening path substantially aligning with the blade contour;   whereby said guide and carriage direct the movement of the abrasive surface along the contour of the blade for a uniform sharpening of an edge thereof.   
     
     
         20 . A method for sharpening a blade, comprising:
 securing a blade in a blade holder;   determining angle of cutting edge of the blade;   selecting angles for sharpening of the blade using a material having preformed grooves;   selecting depth of removal of material from blade by increasing or decreasing force of the blade against the grinding medium;   securing edge of the blade within the grooves for tracking the impression of the contour of the blade; and   tracking the material and the grinding medium while moving the blade backward and forward along the contour of the blade;   whereby the tangent line of the blade is maintained relative to the grinding medium during sharpening.