| 摘要 |
PROBLEM TO BE SOLVED: To provide a torsion beam type suspension having high durability capable of suppressing abrupt increase in the torsional rigidity of a torsion beam at an inner end of a gusset without reducing the strength of the torsion beam and mitigating the stress concentration. SOLUTION: The torsion-beam type suspension comprises a pair of right and left trailing arms 1, a torsion beam 2 to connect the trailing arms 1 to each other, and a gusset 3 having a U-shaped section in plan view and substantially triangular shape which is connected to an inner face of a connection part of the trailing arms 1 to the torsion beam 2. A seat face 9 which is offset e larger then the thickness t of the gusset 3 forward from a general outer face of a rear wall 2a is squeezed to right and left ends of the rear wall 2a of the torsion beam 2. In the gusset 3, an inner edge part 3d is allowed to overlap an intermediate part in the right-to-left direction of the seat face 9, and upper and lower front edge parts 3c, 3c are welded W3 to outer faces of the torsion beam 2 above and below the seat face 9. COPYRIGHT: (C)2006,JPO&NCIPI
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