Patent ID: 6481415
Filing Date: 2002-11-19
Classification: B61C,F16H,G05G,Y10T

Abstract:
An assembly for providing a variable output torque based upon a constant input force, the assembly comprising:an actuator for providing a constant input force; and at least one link operatively coupled to the actuator and to a pivot point such the constant input force from the actuator is converted to the variable output torque at the pivot point, the at least one link includes a first link, a second link, and a third link, each link having respective first and second ends, the first end of the first link is constrained to pivotal movement about a first axis, the second end of the first link is pivotally connected to the first end of the second link, the second end of the second link is pivotally connected to the first end of the third link, the second end of the third link is constrained to pivotal movement about a second axis, and an output element is fixedly connected to the third link for pivotal movement about the second axis.