Connecting device

A device comprising a projection screen for reproducing projected images, said projection screen comprising a surface formed at least partially from a plastic material and having a surface element front side and a surface element rear side, and connecting devices welded to the plastic material of the surface, said device further comprising at least one frame system formed from profile elements, comprising a frame system front side, a frame system rear side and at least one frame system side surface, wherein each connecting device comprises a first part and a second part cooperating with the first part in a connected state, said second part being mounted on the at least one frame system and being disposed on at least one of the frame system rear side and the at least one frame system side surface, wherein said first part comprises a latching part and a connecting element, said latching part comprising a press stud lower portion made up of a metal material and having a base and at least one side wall disposed on the base, wherein said connecting element is made of a weldable polymer and is disposed on the base and the at least one side wall, wherein the connecting element is at least approximately cup-shaped and is intergal with a flat base having a flat, brim-shaped edge which projects laterally over the latching part, wherein the connecting element is welded with the edge onto the surface to form a connection between the connecting element and the surface without punching the surface so that an opening in the surface is not caused by the connection, and wherein an entire surface of the connecting element facing away from the latching part is welded to the surface of the projection screen.

A device comprising a projection screen for reproducing projected images, said projection screen comprising a surface formed at least partially from a plastic material and having a surface element front side and a surface element rear side, and connecting devices welded to the plastic material of the surface, said device further comprising at least one frame system formed from profile elements, comprising a frame system front side, a frame system rear side and at least one frame system side surface, wherein each connecting device comprises a first part and a second part cooperating with the first part in a connected state, wherein the first part is disposed on the surface element rear side and the second part is disposed at least partially on the surface element rear side, wherein said first part comprises a latching part and a connecting element, said latching part comprising a press stud lower portion made up of a metal material and having a base and at least one side wall disposed on the base, wherein said connecting element is made of a weldable polymer and is disposed on the base and the at least one side wall, wherein the connecting element is at least approximately cup-shaped and is intergal with a flat base having a flat, brim-shaped edge which projects laterally over the latching part, wherein the connecting element is welded with the edge onto the surface to form a connection between the connecting element and the surface without punching the surface so that an opening in the surface is not caused by the connection, and wherein an entire surface of the connecting element facing away from the latching part is welded to the surface of the projection screen.