Shield structure and shield shell production method

A shield structure configured to be fixed to a target portion of a vehicle body, wherein the target portion is intended for mounting the shield structure thereto, the shield structure comprising:

• a shield shell including:
• a shell body having a tubular shape, the shell body including at least one wall and defining a shielded space;
• and
• a vehicle body fastened portion which has a plate shape and is continuous with the one wall via a step, the vehicle body fastened portion extending in an axial direction of the shell body and being configured to be fastened to the target portion by means of a bolt,
• wherein the target portion includes an overlapped surface and a pair of inner surfaces, the overlapped surface being configured to be placed facing the vehicle body fastened portion and overlapped with the vehicle body fastened portion, wherein the pair of inner surfaces extends upright from the overlapped surface and opposed to each other,
• wherein the vehicle body fastened portion includes a fastened portion body having a plate shape, a bolt hole and a pair of contact surfaces, the bolt hole being provided in the fastened portion body and configured for inserting the bolt therethrough, wherein the pair of contact surfaces is provided on end faces of the fastened portion body in an orthogonal direction and is able to come into contact with the inner surfaces, wherein the orthogonal direction extends orthogonally to an axis of the shell body, and
• wherein the pair of contact surfaces is configured to be in contact with the pair of inner surfaces in an overlapped state of the fastened portion body which is overlapped with the overlapped surface.