Drum brake shoe hold down nail and spring retainer

摘要

A new and improved brake shoe hold down mechanism for retaining a brake shoe to an inside surface of a backing plate includes a nail having a head disposed on an outside surface of the backing plate limiting axial travel of the nail and a barb-like tip adapted to pass through apertures in the backing plate and a web of the brake shoe. A wire spring is disposed on a first end against the brake shoe and has a coil on a second aligned with the tip of the nail. A cup shaped retainer cap is compressively seated against the spring coil and engaged by the tip of the nail at a bottom of the cap thereby biasing the brake shoe against the backing plate. The retainer cap has a slot from a first position at which the nail tip is received and which is offset from the bottom of the cap to a second position at a bottom of the cap to which the tip is biased by the compressive spring load. The tip engages the bottom of the cap independent of orientation to the slot.