Patent ID: 6158320
Filing Date: 2000-12-12
Classification: B27B,Y10T

Abstract:
A saw arbor having a mandrel and a plurality of cylindrically apertured keyless sleeves, each one of said sleeves for supporting one or more saw blades, each one of said sleeves longitudinally movable along sad mandrel during non-rotation of said mandrel to selectably position said one of said sleeves in a selected position on said mandrel, each one of said saw blades longitudinally movable along said selectably positioned sleeves to selectably position each one of said saw blades in a selected sawing position on one of said sleeves for rotation of said saw blades in said respective sawing positions without longitudinal movement of said sleeves along said mandrel during driven rotation of said mandrel, said saw arbor further comprising:(a) a keyless portion of said mandrel having a first plurality of splines formed integrally with said keyless mandrel portion and circumferentially spaced around an outer circumference of said keyless mandrel portion;(b) each one of said sleeves having:(i) a second plurality of aperture splines formed integrally with said one of said sleeves and spaced circumferentially around an inner circumference of said keyless aperture of said one of said sleeves to substantially inhibit ovality distortion of said keyless aperture of said one of said sleeves; and,(iii) a third plurality of heat treated splines formed integrally with said one of said sleeves and spaced circumferentially around an outer circumference of said one of said sleeves;wherein said mandrel splines and said sleeve aperture splines are respectively shaped and sized for slidable mating engagement of said mandrel splines with said sleeve aperture splines.