VEHICLE DISK BRAKE AND DESIGN OF DISK BRAKE UNIT

摘要

FIELD: transport engineering; brake systems. SUBSTANCE: disk brake has friction member 10 and spring 40. Friction member has carrying plate 12 whose ends are arranged in disk brake member 24 to render resistance to torque, being in sliding contact with disk brake member. At least one end of carrying plate 12 has rounded off surface 22 which is in sliding contact with rounded off surface 32 on member 24. One of rounded off surfaces 32 is concave, and the other surface 22, is convex. Radius of curvature of convex surface 22 is smaller that radius of curvature of concave surface 32. Friction member 10 is located in member 24 with preset end clearance B to occupy first or second extreme position, depending on direction of turning of disk 26 in which first or second end of carrying plate 12 thrusts against member 24. Under action of spring 40 of disk brake unit, friction member 10 is shifted into first extreme position being held in constant contact with rounded off surface 32 formed on member 24. According to proposed invention, spring 40 has active portion 42 located in hole 36 made in end 18 of carrying plate 12, and reactive portion 44, 46 engaging with flat sections 60, 62 of concave surface 32. EFFECT: improved reliability of operation. 6 dwg