A collapsible structure has a base panel that includes separate first and second sides, a foldable frame member having a folded and an unfolded orientation, and a fabric material covering portions of the frame member to form the base panel when the frame member is in the unfolded orientation. A blower directs air into an elongated distribution chamber having many tiny exit apertures. Each encoded stream comprises a plurality of chunks and each chunk is retrievable by a requestor of content. According to the invention, the securing device comprises a bushing section with an indentation, which engages in the undercut of the wiper shaft.