Damping mechanism for a tensioner

摘要

A belt tensioner (10) of the Zed type with a pivot-arm (40) attached to a cylindrical member (46) and including a spring activated damping mechanism (44) with a brake shoe (80) having oppositely facing inside ramp surfaces (84) which operate in such a manner to provide a normal force that is greater than a spring force applied to a brake shoe (80) that engages the cylindrical member (72).