Apparatus for producing and applying a protective covering to a cut edge of an opening of a container wall
AssigneeRuediger Haaga GmbH
InventorWerner Stahlecker
Life of this patent
Estimating the term…
Abstract
For an opening for a container wall, a rivet-shaped protective covering is made and applied by an apparatus. A sheet-like piece of foil is laid down by all applying device on a first wall area bordering the opening. The section overlapping the opening is formed into the opening by a first forming device. A part of the section projects out of the opening at a second wall area bordering the opening. The part of the foil piece projecting out of the opening is formed against the second wall area by a second forming device, whereby the rivet-shaped form of the foil piece is maintained. The rivet-shaped protective covering is affixed permanently to the container wall by an affixing device.
Claims21
An apparatus for producing and applying a protective covering to a cut edge of an opening of a container wall, comprising:
- a device for cutting out a sheet-like foil piece from a tape-like foil which comprises a die plate with a recess corresponding to the outer contour of the uncut foil piece, and a blanking punch corresponding to the outer contour of the foil piece and slidable from a position outside of the die plate to a position inside the recess of the die plate;
- a device for applying the foil piece to a first wall area bordering the cut edge of the opening, said foil piece overlapping said opening;
- a device for forming a section of said overlapping foil piece through the opening;
- a device for forming a section of the formed foil piece which projects out of the opening at a second wall area bordering the cut edge and opposite the first wall opening, to a rivet-shaped protective covering which completely covers the cut edge;
- and
- a device for permanently affixing the foil piece formed to said rivet-shaped protective covering.
Dependencies are inferred from the claim text.