Patent ID: 6305638
Filing Date: 2001-10-23
Classification: B65H

Abstract:
A self-locking core and shaft assembly comprising an elongate generally cylindrical solid shaft having an exterior surface and opposite end portions, said shaft having a plurality of spaced laterally protruding first bosses formed in said exterior surface and extending longitudinally substantially the length of said shaft, said spaced first bosses defining elongate first channels therebetween, said first channels extending substantially the length of said shaft, a hollow elongate generally cylindrical core having an interior surface and an exterior surface, said interior surface formed of a plurality of inwardly protruding second bosses extending substantially the length of said core, said spaced second bosses defining second channels extending substantially the length of said core, said core sized to be tightly fitted over and in contact with said exterior surface of said shaft to minimize movement of said core with respect to said shaft.