Patent ID: 7600794

Claim:
A snap fastening fixing a thin wall, such as a housing wall, door leaf, or shutter, which is provided with an opening, to a wall support, such as a housing frame, door frame, wall opening edge, which is likewise provided with an opening, comprising: a base part that can be arranged at the wall support in its opening; a head part which extends away from the base part and which has a diameter that initially increases and then decreases again in its longitudinal section from an end of the head part in direction of the base part; said head part being a male-plug-in part which, by overcoming a spring force acting radially outward in direction of the diameter, can be received by an undercut female plug-in part that is formed or carried by the opening of the thin wall; said head part having a guide or channel to accommodate at least two push elements or holding elements which are pushed by at least one spring into a position in which they project out over the end of the guide or channel; ends of the push elements or holding elements projecting from the guide or channel being triangular or ball-shaped in a projection plane extending perpendicular to the thin wall; said base part being formed with a plate which overlaps the longitudinal edges of the opening in the thin wall; and said snap fastening having an additional base part with an additional head part, said additional base part and head part having substantially the same construction as the other base part and head part, said base parts lying at opposite sides of said base plate so as to function as a connector between the thin wall and the wall support, said snap fastening is shaped in such a way that one set of base part and head part is self-locking in an insertion direction against the spring force and engages the edges of one of the openings of one of the thin walls or the wall support by the ends of the push elements or holding elements so as to cover the contacting edges of said opening and the other set of base part and head part is received on the other opening of the other of the thin wall or wall support to cover the contacting edges of said other opening, therefore maintaining the connection between the thin wall and the support wall.