Patent ID: 6679149
Filing Date: 2004-01-20
Classification: B23D,Y10T

Abstract:
A band saw apparatus including a blade under tension, comprising:a frame; a drive mount including a first portion pivotably connected to said frame; a rotatable wheel supported by said drive mount and movable therewith, the blade extending about said rotatable wheel; a tensioner assembly including: a mounting bushing having an opening therethrough; a rotatable shaft having at least one threaded region along its axial length, said shaft extending through said opening in said mounting bushing; a handle connected to said shaft for rotating said shaft; a mounting nut threaded onto said threaded region of said shaft and spaced from said mounting bushing, said mounting nut including at least one laterally extending bore; a seating surface extending from said shaft at a position intermediate said mounting bushing and said mounting nut; a spring disposed around said shaft and positioned between said mounting bushing and said seating surface, a first end of said spring positioned against said seating surface so as to be fixed at said intermediate position along said shaft regardless of a distance between said mounting bushing and said mounting nut, a second end of said spring positioned toward said mounting bushing; a housing positioned between said mounting bushing and said mounting nut for enclosing said spring, said housing comprised of first and second telescoping portions, said housing positioned such that said laterally extending bore of said mounting nut is exposed; wherein a portion of said tensioner is connected to said frame; and wherein said mounting nut is connected to said drive mount via its laterally extending bore.