Patent ID: 7871093

Claim:
A torsion beam suspension comprising: a trailing member which comprises: a front end portion pivotally supported by a vehicle body; and a rear end portion suspending a wheel; a torsion beam that extends in a lateral direction of a vehicle, and comprises: an open face opposing to a vehicle front side or a vehicle rear side; an end portion connected to an intermediate portion of the trailing member; and a plate shaped patch member having opposing inner and outer broad face portions and a plurality of narrow edge face portions, including at least upper and lower narrow edge face portions, surrounding the broad face portions, wherein: the inner broad face portion abuts an inner side wall of the trailing member, the upper narrow edge face portion of the patch member is welded at an upper inside wall portion of the torsion beam, and the lower narrow edge face portion of the patch member is welded at an inner side wall portion of the trailing member, and is separated from a lower inside wall portion of the torsion beam.