Roof panel lining of a vehicle with preassembled head protection elements (head bags)

The present invention relates to a roof panel lining of a vehicle with preassembled head protection elements, so-called "head bag". A roof panel lining of a vehicle with preassembled head protection elements so-called "head-bag", comprising a complex element () with a head bag unit () with a shaped support () and arranged integrally in relation to a roof panel lining () by reciprocal constraining elements (), in which the complex element () is arranged in a recessed zone () of the roof panel lining (), covered by one or more longitudinal side covering and closing elements (), in turn fastened to a body () of the vehicle by a handle () and provided with a weakening notch () which, in the inflation phase, allows release of a bag of the "head bag" unit ().