Steering Support Frame

A steering support frame formed by fastening fastening brackets attached to both right and left ends of a deck cross member to respective fitting parts provided in vehicle body frames so as to bridge the deck cross member between the right and left vehicle body frames,

• each of the fastening brackets comprising:
• a body plate to which one of the ends of the deck cross member is connected;
• a surface contact plate to which a fastening nut corresponding to a bolt to be inserted into corresponding one of the fitting parts of the vehicle body frames is fixed, the surface contact plate being provided in the body plate;
• a connection plate that is a part for connecting the body plate and the surface contact plate, the connection plate having a width in a direction perpendicular to a connecting direction of the body plate and the surface contact plate equal to or smaller than a width of the surface contact plate;
• and a portion defining a demarcating slit for demarcating the body plate and the surface contact plate, wherein
• to connect the deck cross member and the fastening brackets, one of the ends of the deck cross member is welded to both of the body plate and the surface contact plate of the fastening bracket on a driver seat side, and the other end of the deck cross member is welded only to the body plate of the fastening bracket on a passenger seat side.