Patent ID: 6039157
Filing Date: 2000-03-21
Classification: H02K

Abstract:
Vehicle braking apparatus comprising:a brake drum secured to a rotational shaft; said drum having an inner surface and first and second side surfaces;magnetic field generating means annularly distributed within said brake drum;a plurality of ferromagnetic plates having axially spaced apart first and second edges and being disposed in an annular array between said magnetic field generating means and said inner surface of said brake drum, said first edges of said plates being radially and axially spaced from said first side surface of said brake drum; andan electrically conductive annular body having at least an annular portion bonded to a lower peripheral edge of said first side surface and along a continuous annular interface therebetween, said annular body being axially spaced from said first edges of said plates; and wherein said lower peripheral edge is formed by an annular slot in said brake drum and having an L-shaped transverse cross-section substantially conforming to a transverse cross-section of said annular portion.