Twist beam type rear suspension reinforced against side force with longitudinal compliance

A twist beam type rear suspension comprising a pair of trailing arms disposed to extend along opposite sides of a vehicle as pivotably supported from a vehicle body at front ends thereof and supporting at rear ends thereof rear vehicle wheels to be rotatable about respective axes of rotation thereof extending transversely in the vehicle, a twist beam connected between said pair of trailing arms and twistable about an axis of twisting thereof, an assist link having a central portion disposed substantially transversely in the vehicle as supported from the vehicle body and opposite end portions movable relative to the vehicle body, and a pair of control links each having a first end pivotably connected with each said trailing arm at a portion thereof adjacent said front end thereof and a second end pivotably connected with each said end portion of said assist link, wherein said opposite end portions of said assist link are either movable in the longitudinal direction relative to the vehicle body in the same phase but unmovable in the longitudinal direction relative to the vehicle body in the phases opposite to one another and also unmovable in the transverse direction relative to the vehicle body or movable in the transverse direction relative to the vehicle body in the phases opposite to one another but unmovable in the transverse direction relative to the vehicle body in the same phase, a phantom straight line passing pivot centers of the pivoting connections at said first and second ends of each said control link intersects one another at a point positioned transversely central in the vehicle and longitudinally in a region extending rearward from a point substantially around said axes of rotation of said vehicle wheels as viewed from the top of the vehicle, and a phantom straight line passing a pivot center of the pivoting support of said front end of each said trailing arm and one of said first and second ends of each said control link traverses said axis of twisting.