Patent ID: 6015107
Filing Date: 2000-01-18
Classification: B02C

Abstract:
A roller grinder, comprising:a housing having a top, a bottom, a front, a back, and first and second sides;a pair of rollers disposed in said housing, wherein said pair of rollers comprises:front and back rollers, each of said rollers being generally cylindrical and having a pair of opposite ends, said front roller being positioned towards said front of said housing, said back roller being positioned towards said back of said housing;each of said ends of said front roller being rotationally mounted to an associated side of said housing;each of said ends of said back roller being rotationally mounted to an associated side of said housing, each of said ends of said back roller being slidably mounted to the associated side of said housing to permit sliding of said roller between said front and back of said housing;an adjustment assembly for adjusting the spacing between said pair of rollers, wherein said roller adjustment assembly comprises a first side subassembly, a second side subassembly, and an elongate linking rod;said first side subassembly comprising:a first adjustment bracket having upper and lower ends, said first adjustment bracket abutting said first end of said back roller, said first adjustment bracket being pivotally coupled to said first side of said housing at a point between said ends of said first adjustment bracket;threaded elongate upper and lower first adjustment rods each having front and back ends;said back end of said upper first adjustment rod being extended through said upper end of said first adjustment bracket, said front end of said upper first adjustment rod being positioned adjacent said front of said housing;said first side of said housing having a holding tab, said holding tab being positioned towards said front of said housing;said back end of said lower first adjustment rod being extended through said lower end of said first adjustment bracket, said lower first adjustment rod being extended through said holding tab of said first side of said housing, said front end of said lower first adjustment rod being outwardly extended from said front of said housing;a first adjustment nut being threaded on said front end of said lower first adjustment rod; anda first coarse adjustment member being coupled to said front end of said upper first adjustment rod, said first coarse adjustment member being pivotally mounted on said first side of said housing;said second side subassembly comprising:a second adjustment bracket having upper and lower ends, said second adjustment bracket abutting said second end of said back roller, said second adjustment bracket being pivotally coupled to said second side of said housing at a point between said ends of said second adjustment bracket;threaded elongate upper and lower second adjustment rods each having front and back ends;said back end of said upper second adjustment rod being extended through said upper end of said second adjustment bracket, said front end of said upper second adjustment rod being positioned adjacent said front of said housing;said second side of said housing having a holding tab, said holding tab of said second side being positioned towards said front of said housing;said back end of said lower second adjustment rod being extended through said lower end of said second adjustment bracket, said lower second adjustment rod being extended through said holding tab of said second side of said housing, said front end of said lower second adjustment rod being outwardly extended from said front of said housing;a second adjustment nut being threaded on said front end of said lower second adjustment rod; anda second coarse adjustment member being coupled to said front end of said upper second adjustment rod, said second coarse adjustment member being pivotally mounted on said second side of said housing; andsaid linking rod connecting said first coarse adjustment member to said second coarse adjustment member, said linking rod being located adjacent said front of said housing.