Accessory e.g. cargo-carrying roof bar, fastening unit for motor vehicle, has fixing head with surface for cooperating with complementary fastener carried by accessory to be fixed, where surface has shape of revolution around central axis

摘要

The fixation unit has a fixation body (14) for being fixed with a structure of a vehicle, and a fixation head (12) equipped with a cooperation surface (22) for being cooperated with a complementary fixation unit carried by a load carrier to be fixed. The cooperation surface has a shape of revolution around a central axis. The surface has an annular groove (20) arranged in the fixation head. An independent claim is also included for a motor vehicle having a structure and a fixation unit of an accessory.