Patent ID: 7070356

Claim:
A plug-in connector for hollow sections of spacer frames for insulating glass panes, the connector comprising: a longitudinal center axis; a first outer connector part configured to be inserted into a hollow region of a spacer frame and a second inner connector part sized to be plugged into said first outer connector part, each of said first and second connector parts extending along said longitudinal center axis with an essentially U-shaped transverse cross section, said U-shaped transverse cross-section being generally defined by two side walls extending dogleggedly from a middle wall; wherein said first outer connector part has a plurality of openings in at least one of its sidewalls; wherein said second inner connector part includes a central indentation in at least one of its sidewalls so as to form a portion set back in relation to an adjacent portion of said first outer connector part and also has an embossed area extending outwardly from at least one of its sidewalls, each embossed area corresponding to and aligning with one of said openings in the first outer connector part, such that the embossed areas and openings positively engage each other and substantially prevent relative movement between said first and second connector parts in all directions.