RAIL VEHICLE BRAKE SHOE Russian patent published in 2008 - IPC F16D65/04 B61H7/02 

FIELD: railway transport; brake systems.

SUBSTANCE: proposed brake shoe contains composite friction member, metal skeleton made of steel strip and hard insert welded to skeleton and arranged in central part of shoe, wire framing, central boss and two side bosses. Wire framing consists essentially of two closed frames press-fitted into composite friction material from rear side of shoe over perimeter of shoe, whose inner parts are relatively overlapped and bent outwards relative to rear part of shoe, thus forming eye to pass cotter pin. Central boss is provided with hole for cotter, pin. Two side bosses are made of composite friction material. Metal skeleton made of steel strip has width less than width of wire framing, being bent to radius of rear surface of shoe and press-fitted into rear surface of shoe between side bosses and under central boss. Composite friction member consists of two longitudinal layers of material. Strength of layer arranged from rear side of shoe is greater than that of layer arranged from working side of shoe.

EFFECT: increased strength of shoe.

2 dwg