US Patent 10514053 Fastening device for a sandwich component

A snap-together fastening device includes a holding element and an actuating element. The holding element has one or more fixing arms that are actuatable from a mounting position into a fixing position. The actuating element is pluggable into an opening of the holding element, and has a top end and a bottom end. The actuating element deflects, in its position in which it is plugged into the holding element, at least one fixing arm into a fixing position. In its position in which it is plugged into the holding element an outermost edge of the actuating element, that is in the region of the top end, contacts an inner surface of the at least one fixing arm.