Arrangement for mounting a flexible film or the like

An arrangement for mounting a flexible film or the like, particularly to seal a substrate, comprising an inner clamping member connected with a substrate and having an outer surface onto which a film is placed, said inner clamping member having an undercut portion adjacent to the substrate;

• an outer clamping member surrounding the film in the region of said undercut portion of said inner clamping member so that the film is clamped between said inner and outer clamping members, said outer clamping member being a spring ring which is open and has two end portions which are bent in direction away from one another;
• a disc-shaped carrying member associated with said outer clamping member so that the latter presses said disc-shaped carrying member against the film;
• and locking means provided on said disc-shaped carrying member and arranged for locking said outer clamping member in clamping condition, said locking means including a first locking element provided with arresting projections which fix said bent end portions of said spring ring in the clamping condition, and a second locking element which is spaced from said first locking element and arranged to press said bent end portions of said outer clamping member against said first locking element.