Damping member for vehicle

A damping member for a vehicle arranged at a back face of a trim member attached to cover a vehicle body panel, and configured to absorb input energy of an input load and deformed by crush, the damping member for a vehicle comprising:

• a base plate portion having a flat plate shape;
• a vertical wall arranged at a rim of the base plate portion in a flange-like manner;
• a plurality of ribs arranged in parallel as rising from the base plate portion, each of the ribs connected to the vertical wall as extending in a direction intersecting with the vertical wall;
• and
• a fragile section having strength of the vertical wall locally reduced, the fragile section arranged between adjacent two of the ribs, the fragile section including,
• a groove formed at the vertical wall, and
• a slit formed at the base plate portion,
• wherein the groove includes,
• a first groove formed at a leading end part of the vertical wall, the first groove extending in a thickness direction of the vertical wall, and
• a second groove communicating with the first groove, the second groove extending in a height direction of the vertical wall, and
• the slit has an opening shape elongated along an extending direction of the vertical wall, the slit being in contact with the vertical wall.