| 摘要 |
PROBLEM TO BE SOLVED: To provide a suspension structure having sufficient connection strength between a trailing arm and a torsion beam and easily ensuring productivity, cost reduction, and a reduction in the number of parts. SOLUTION: The suspension structure includes a pair of right and left trailing arms 2 and a torsion beam 7 connected between the pair of the trailing arms 2. The torsion beam 7 includes: a central portion 7M including a pair of leg parts extending downward and a circular connecting part for connecting the leg parts and having a first cross-sectional shape S1 opened downward; a connecting portion 7C including an end part connected to the trailing arm 2 and having a triangular second cross-sectional shape S2 opened downward; and a gradually changing portion 7G having a gradually changing cross-sectional shape Sg gradually changing from the first cross-sectional shape to the second cross-sectional shape from the central portion to the connecting portion. The gradually changing portion 7G is disposed near the trailing arm 2. COPYRIGHT: (C)2011,JPO&INPIT
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