Patent ID: 6029782
Filing Date: 2000-02-29
Classification: F16D

Abstract:
A brake, comprising:a torque transmission assembly having a longitudinal axis;a hub rotatable about said longitudinal axis;a first pressure plate assembly comprising a first circular member, a second circular member, and a first connecting member connecting said first and second circular members, said first circular member extending radially outwardly from said first connecting member, said first pressure plate assembly being axially movable relative to said torque transmission assembly;a second pressure plate assembly axially movable relative to said torque transmission assembly;a drive plate assembly responsive to axial movement of said first pressure plate assembly for braking rotation of said hub relative to said torque transmission assembly;means for applying a setting force to said second pressure plate assembly to urge said first and second pressure plate assemblies in a first axial direction towards said drive plate assembly;first actuator means for applying a first release force to said second pressure plate assembly to urge said second pressure plate assembly in a second axial direction, opposite said first axial direction; and,second actuator means for applying a control force to said first pressure plate assembly to urge said first pressure plate assembly in said first axial direction towards said drive plate assembly, said control force being adapted to vary a braking torque.