BELT TENSIONING DEVICES

Brand	Owner	Address	Description
BIG SHOT	TIMKEN SMO	2601 W. Battlefield Road Springfield MO 65807	Belt tensioning devices, namely, hand tools for use in setting the tension on power transmission belts;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A continuously variable belt drive system including a driving pulley assembly, a driven pulley assembly, and a V-shaped belt engaged to transfer rotary power therebetween is disclosed herein. The driving pulley assembly includes an idler pulley portion. As the belt speed decreases, the belt migrates downward within the driving pulley assembly until it falls within the idler pulley portions, thereby isolating the belt from the rotation of the driving pulley assembly. The driving pulley assembly also includes a belt tensioning mechanism that maintains proper belt tension at all speeds and drive ratios. The tensioning mechanism relies upon a pivotably mounted centrifugal weight arm to provide tensioning as a function of speed. A compression spring provides axial pressure to maintain belt tension over all drive ratios. The spring, acts against a curved cam edge on a pivoting lever arm, which arm transfers an axial force to the rear sheave of the driven pulley assembly.