Patent ID: 6752706
Filing Date: 2004-06-22
Classification: B24B

Abstract:
An adjusting device for the sanding drum of a double-drum sander respectively installed between opposite ends of a rear sanding drum and a machine frame of a sander, said adjusting device comprising:a fundamental base secured on an inner wall of said machine frame facing the opposite ends of said rear sanding drum, said fundamental base having an inner wall formed with a dovetail-shaped groove, said dovetail-shaped groove provided with a perpendicular insert slot; a slide base having a first side combined with said rear sanding drum and a second side formed with a dovetail-shaped block, said dovetail-shaped block fitted with said dovetail-shaped groove, said slide base further bored with a threaded hole in an upper central edge; a shaft base fixedly assembled on a topside of said fundamental base, said shaft base formed with a vertical insert hole in the center; a rotary adjuster composed of a rotary button, a threaded rod and a position-limiting toggle, a helical rod inserted in said insert hole of said shaft base, said rotary button and said position-limiting toggle respectively fitted on an upper and a lower end of said threaded rod, said position-limiting toggle received in a lower end of said insert hole of said shaft base, said threaded rod able to rotate pivotally on said shaft base, said threaded rod having its lower end threadably combined with said threaded hole at the topside of said slide base, said rotary button able to control said threaded rod to move up and down together with said slide base and said rear sanding drum which is combined with said slide base; and a locking handle consisting of a handle and a bolt, said bolt inserted through the wall of said machine frame from outside, said bolt then passing through said insert slot of said fundamental base and fixed with said slide base, said lock handle turned tight to fix said slide base in position on said fundamental base after adjusted.