Underbody structure

摘要

An intermediate portion of a cylindrical suspension member collar extending in a longitudinal direction of a vehicle body is welded to an end portion of a suspension member in a transverse direction of the vehicle body. Both longitudinal-direction end portions of the suspension member collar are reduced in diameter in comparison with the intermediate portion thereof. The suspension member collar is disposed between respective inner cylinder portions of a pair of mounts so as to be coaxial with the inner cylinder portions. A shaft member is inserted into the inner cylinder portion of the mount and the suspension member collar, and a rubber bushing is disposed between an outer cylinder portion of the mount and the inner cylinder portion thereof, so that the outer cylinder portion and the inner cylinder portion can rotate relatively to each other. This makes it possible to prevent the rotation of the side member about an axial center thereof.