Patent ID: 6129184
Filing Date: 2000-10-10
Classification: B60T,B66F,F16D

Abstract:
A moving-system braking device, comprising:main control means for exerting a moving-system constant braking force on a pad having at least one friction lining; andsecondary control means for exerting an additional moving-system braking force on said pad, and which can be added to said constant braking force, wherein said additional braking force is a function of a variable control parameter;wherein said main control means includes a frame parallel to said pad and movable along an axis of a fixed-support housing, said frame being non-rotatable relative to said housing, whereby an axial displacement of said frame between a position of disengagement from said pad and a position of engagement with said pad results in said constant braking force, andwherein said secondary control means includes a first piston system housed in said fixed-support housing, said first piston system axially movable within said fixed-support housing to engage said frame and exert said additional braking force which adds to said constant braking force, andwherein said main control means includesat least one elastic system placed between said frame and said fixed-support housing to thereby move said frame into said position of engagement with said pad and produce said constant braking force on said pad; and,an annular electromagnet housed in said fixed-support housing, wherein said electromagnet counteracts a force of said elastic system and moves said frame to said position of disengagement from said pad when said electromagnet is fed with an electrical current.