Tubular beam of torsion beam axle type suspension
OwnerJaeyoun Leeinventor
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Abstract
The present invention relates to a tubular beam of a torsion beam axle type suspension, which includes a uniform cross-sectional portion with the smallest tail radius and cross-sectional width throughout the tubular beam, a variable cross-sectional area that extends from the uniform cross-sectional portion and gradually increases in the tail radius and cross-sectional width, and an enlarging cross-sectional portion that extends from the variable cross-sectional portion. Therefore, it is possible to minimize reduction of roll rigidity and improve durability of a tubular beam. Further, it is possible to add understeer characteristics to a tubular beam with an oversteer tendency by minimizing the reduction in transverse rigidity and making a shear center higher.
Claims8
A tubular beam of a torsion beam axle type suspension comprising:
- a uniform cross-sectional portion that is formed substantially at a middle portion of the tubular beam, wherein radius of front and rear tails are minimum and uniform;
- a variable cross-sectional portion that extends from an distal end portion of the uniform cross-sectional portion and the radius of the front and rear tails are gradually increased;
- and
- an enlarging cross-sectional portion that extends from a distal end portion of the variable cross-sectional portion and a cross section of the enlarging cross-sectional portion is gradually enlarged into a rectangular shape with four rounded corners to the distal end of the tubular beam.
Dependencies are inferred from the claim text.