Fastening device for a security module on a vehicle steering wheel

A device for fastening a safety module on a steering wheel frame, comprising:

• at least one resilient ring movable between an initial position and a final position,
• at least one hook having:
• a first surface forming a guide track ending on an inflection point, to cause the resilient ring to go, during a docking movement of the module on the frame, from the initial position to a relaxed position, and
• a second surface separated from the first surface by the inflection point and arranged to receive the resilient ring going from the relaxed position to the final position;
• at least one valve bridge, with a third surface across from the second surface,
• wherein the resilient ring in the final position locks the module fixed on the frame by bearing on the second surface and on the third surface, and
• wherein the third surface comprises at least one recess arranged across from the inflection point.