High friction brake shoe assembly

摘要

A vehicle brake shoe assembly ( 10 ) having a rigid backing plate ( 12 ) incorporating a plurality of extensions ( 100 ) which project through the brake friction material matrix ( 22 ) to the outer friction surface ( 24 ) of the brake shoe assembly ( 10 ). Each extension ( 100 ) is configured to cooperate with the brake friction material matrix ( 22 ) to engage a surface of an opposing friction element ( 28 ) simultaneously with the friction material ( 22 ), increasing the static and dynamic friction performance of the assembly ( 10 ) during initial use beyond that achieved from the application of either the brake friction material ( 22 ) or the projections ( 100 ) alone.