Piezoelectric mechanism, especially for generating braking forces e.g. for vehicle braking, has threaded spindle, and foot associated with each clamping piezo packet with profile complementary to threaded spindle profile

摘要

The mechanism has reference (1) and rotatable driven (2) parts, clamping piezo stacks supported between the reference and driven parts under compression to exert a clamping force on the driven part when activated and an equal number of stepper piezo stacks. The driven part is a threaded spindle and a foot associated with each clamping piezo packet has a profile complementary to the profile of the threaded spindle with which it interacts.