Connecting piece for vacuum cleaner dust filter bag has closure part with protruding region curved to side of bag in open position, shaped to produce essentially flat profile when moved to closing position by interaction with guide

摘要

The connecting piece has a mounting plate (5) with an opening coaxial with the bag inlet (3) and a guide (11) for guided insertion of a sliding closure part (7) between open and closed positions. The sliding closure part has a closing part (12) that protrudes beyond the mounting plate in the open position. The protruding region is curved to the side of the filter bag in the open position and is shaped to produce an essentially flat profile when moved to the closing position by interaction with the guide. An independent claim is also included for a dust filter bag with an inventive device.