Brake shoe construction
OwnerJames L. Taylor, Jr.inventor
Life of this patent
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Abstract
An improved brake shoe assembly is provided wherein friction material is cast directly onto a brake liner plate. The brake liner includes a plurality of perforations which form protruding tabs. Interengagement between the cast friction material and the perforated areas and tabs provides excellent interlocking strength between these components. The number, size, orientation and configuration of these tabs may be selected with regard to the specific operating characteristics to which the brake shoe assembly is to be employed.
Claims7
A replaceable brake lining adapted to be affixed to a brake shoe and adapted to receive cast-on friction material comprising,
- a rigid brake backing plate defining a portion of a cylinder, said backing plate forming a plurality of protruding tabs oriented along at least three circumferential lines which are spaces with respect to the axis of said cylinder, said protruding tabs formed by cutting along a curved line and deflecting said tabs along a bending line joining the ends of said curved lines, wherein said tabs oriented along at least one of said circumferential lines have a bending line parallel to said axis of said cylinder, and said tabs oriented along at least one of said circumferential lines having a bending line tangent to one of said circumferential lines whereby said cast-on friction material surrounds said protruding tabs and enters the apertures formed by said tabs to interlockingly engage with said backing plate.
Dependencies are inferred from the claim text.