Suspension system with swaged axle and welded arm brackets and method of manufacture
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 21, 2010
Grant Date -
Sep 10, 2009
app pub date -
Mar 3, 2009
filing date -
Mar 5, 2008
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A trailing arm suspension system and method of manufacture wherein a tubular axle is formed with a central area and trailing arm attachment areas outboard of the central area. The axle central area and attachment areas have a substantially uniform outer surface diameter, and the wall thickness of the attachment areas is thicker/greater than the wall thickness of the central area. Inboard and outboard arm brackets are secured by welding to the axle arm attachment areas and trailing arms are secured, at one end thereof, between an inboard and an outboard arm bracket. At their other ends, the trailing arms are adapted to be pivotally secured to the vehicle. The arm brackets are secured to the axle by inserting the axle through an axle receiving hole in the brackets and providing a 360° weld bead at the interface between the axle and arm brackets. A brake spider is secured at each end of the axle outboard of the arm brackets by inserting the axle through an axle receiving hole in the spider and providing a 360° weld bead at the interface between the axle and spider. A spring seat is secured to the trailing arm and is adapted to carry a spring and transfer the vehicle weight from the spring to said trailing arm.
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