Folding box having inside lining and also method and apparatus for the production thereof

• US 4,565,315 A
• Filed: 06/21/1984
• Issued: 01/21/1986
• Est. Priority Date: 06/21/1984
• Status: Expired due to Term

• Current Assignee: CP Schmidt-Verpackungswerk GmbH & Company KG
• Original Assignee: CP Schmidt-Verpackungswerk GmbH & Company KG
• Inventors: Wagner, Heinz, Schieler, Karl
• Primary Examiner(s): MOY, JOSEPH MAN
• Application Number:
  US06/622,850
• Time in Patent Office: 579 Days
• Field of Search: 229/17 R, 220/416, 220/449, 220/460
• US Class Current: 229/122
• CPC Class Codes: B65D 5/603 Flexible linings loosely glued to the wall of the container B65D5/0272 takes precedence
• CPC Class Codes: B65D 5/703 the score-lines or incisions extending in the body of the tubular container

Abstract

The inside lining of a folding box having inside lining (9), an opening area for extraction (100) in the box cutout (10) and a window opening area (106), which area is connected with the latter, in the inside lining is to be constructed in the form of a tube, that is, in such a way that it is closed in the longitudinal direction of the tube. In order to make this possible, a prefabricated foil tube, which lies flat, is to be provided with impressions for the window opening areas. In order that only the one side of the foil tube which has been laid flat is impressed, the foil tube is passed in a punching apparatus between an impressing cylinder and a countercylinder, between which a space is preserved by means of spacer rings. The space substantially corresponds to the thickness of the double-layer foil tube which lies flat. A punch cutting section, which is provided on the impressing cylinder, is to rise above the surface of the impressing cylinder only substantially up to a height which is equal to half of the width of the gap between the impressing cylinder and the countercylinder.

Claims

1. In combination, a folding box and an inside lining, said box having a prepunched opening area for extraction of contents, which area may be ripped open, said inside lining being formed with an impressed window opening area, the box'"'"'s prepunched opening area and the inside lining'"'"'s window area being adhered to each other, said inside lining being formed by a foil tube piece which is closed in the longitudinal direction of the tube, a first connection between said box and said inside lining along which said box and inside lining are sealed to each other, said first connection at least partially framing the window opening area and a further connection between said box and said inside lining along which said box and inside lining are sealed to each other, said further connection being specularly symmetrical to the first connection in regard to a folding line which develops on the foil tube piece when it is laid flat for impressing the window opening area, said further connection completely framing the area which corresponds to the window opening area.

2. A combination according to claim 1 wherein said folding line which develops on the foil tube piece extends adjacent a folding line of said box which forms an edge of said box.

3. A combination according to claim 1 wherein the foil piece is plastic coated on the inside and wherein two parallel border areas of the foil piece are heat sealed to each other.

4. A combination according to claim 1 wherein two parallel border areas of the foil piece are heat sealed to each other.

5. A combination according to claim 4 wherein the folding line of the foil tube piece and the heat sealed border areas extend parallel to each other.