Patent ID: 6206392
Filing Date: 2001-03-27
Classification: B21C,B21D,B21J,B60G,F16F

Abstract:
A stabilizer bar apparatus for use in a suspension of a motor vehicle, said stabilizer bar apparatus comprising:a hollow tubular member having first and second arms disposed at opposite ends of a center section, said center section being adapted to be rotatably attached to a chassis and said first and second arms being adapted to attach to first and second wheel suspensions;a first radial protrusion circumferentially formed on an outer surface of said hollow tubular member, said first radial protrusion extending radially outward from said outer surface to a first predetermined height, said first radial protrusion further comprises a ramp portion gradually departing from said outer surface and intersecting a wall portion extending outward and substantially normal to said outer surface to said first predetermined height; andstress dispersing means formed on an inner surface of said hollow tubular member opposite said first radial protrusion, said means for dispersing stress otherwise concentrated in said hollow tubular member adjacent to said first radial protrusion, said stress dispersing means further comprises a first circumferential channel formed on an inner surface of said hollow tubular member, said first circumferential channel having a first side parallel to said ramp portion and a second side parallel to said wall portion;wherein said first circumferential channel further comprises:a first radius between said inner surface of said hollow tubular member and said first side of said first circumferential channel, said first radius having a first predetermined minimum dimension;a second radius between said inner surface of said hollow tubular member and said second side of said first circumferential channel, said second radius having a second predetermined minimum dimension; anda third radius between said first side of said first circumferential channel and said second side of said first circumferential channel, said third radius having a third predetermined minimum dimension so as to prevent stress from concentrating in said hollow tubular member adjacent to said first radial protrusion.