| 摘要 |
The present invention provides a torsion beam suspension including a left spindle that rotably supports a left wheel of rear wheels, a right spindle that rotably supports a right wheel of the rear wheels, a left trailing arm, a right trailing arm, a left bush, a right bush, and a torsion beam for connecting the left trailing arm arid the right trailing arm. The torsion beam has a U-shaped open section in which openings are formed in a rear portion of the car body, the open section of the torsion beam is enlarged and is located closer to the rear portion of the car body as the openings are closer to the left and right trailing arms, and the torsion beam comprises ribs having closed sections which are increased as the enlarged open section is closer to the left and right trailing arms.
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