Abstract: An assisting device for unfolding an inflatable airbag, located at the junction of at least two fitting elements of a motor vehicle body parts. The first of the two fitting elements is fixed and the second of the two fitting elements is configured to be deformed under the pressure exerted by the inflatable airbag when it moves. A guiding surface of an outlet zone of the inflatable airbag is oriented towards an end portion of the second fitting element and is located at the outer limit of a co-operating zone between the first and second fitting elements.

Abstract: The present invention provides a composite part that includes a semi-rigid interior part and a rigid exterior part. A sheet of flexible material (1) is given rigidifying additives and is molded before being inserted into an injection mold that adds a rigid thermoplastic strip to the edges of the said sheet. The invention is primarily suitable for producing parts for the automotive industry.