BigPatents India

A brake unit, preferably for a rail vehicle, comprises in a housing (10): a piston (11), and a push rod 5 in the form of a spindle (16) in an axial slack adjuster (24-46). The axial directions of the piston and the push rod are substantially perpendicular to each other, and means are provided for force transmission between these parts. Said force transmitting means comprise wedge 10 elements (15) at the underside of the piston (11) cooperating with a driver element (22) coaxial with and force-transmittingly connected to the spindle (16). The driver element (22) is supported with rolling friction by the housing (10) for movements in the axial direction of 15 the spindle (16), and the spindle (16) is axially guided by the housing (10) at its forward end. No. of Pages : 18 No. of Claims : 14