Packets and the manufacture thereof

• US 4,392,338 A
• Filed: 11/24/1980
• Issued: 07/12/1983
• Est. Priority Date: 03/15/1976
• Status: Expired due to Term

• Current Assignee: Molins Ltd (MPAC Group PLC)
• Original Assignee: Molins Ltd (MPAC Group PLC)
• Inventors: Fox, Austin L.
• Primary Examiner(s): Shoap, Allan N.
• Application Number:
  US06/209,614
• Time in Patent Office: 960 Days
• Field of Search: 229/37 R, 229/37 E, 229/44 CB, 206/268, 493/911, 53/462, 53/207, 53/484, 53/491
• US Class Current: 53/462
• CPC Class Codes: B65B 19/20 into boxes with hinged lids
• CPC Class Codes: B65D 5/6691 the container being provided with an internal frame or the like for maintaining the lid in the closed position by friction
• CPC Class Codes: B65D 85/10564 having means for holding the lid in a closed position
• CPC Class Codes: Y10S 493/911 Flip-top

Abstract

A hinged lid packet has an integral inner frame comprising a recessed panel extending upwardly from the front wall of the body of the packet, and a pair of side flaps extending backwards from the sides of the recessed panel. A cut-away part is formed at the top of each side flap to provide access for securing each outer flap of the lid of the packet to the respective inner flap. Each inner flap may be of a shape corresponding to the cut-away part, so that with the lid closed the inner flap and the respective side flap are substantially contiguous.

Claims

1. A method of erecting a one-piece blank made of a single layer of material of substantially rectangular configuration cut and scored for folding about contents to form a hinged lid packet having a lid portion hinged to a body portion;

(a) wherein said blank comprises;

1. a central portion extending from the top to the bottom of said blank and divided by at least six parallel spaced-apart transverse foldable scored lines into, consecutively from the top to the bottom of said blank, a panel, a front wall, a bottom wall and a rear wall for forming said body portion and a rear wall, a top wall and a front wall for forming said lid portion, the combined length of said panel and front wall of said body portion being substantially the same as the combined length of said rear walls of said body and lid portions; and

2. an outer portion at each of the left and right sides of said central portion, each outer portion comprising a side flap foldably attached to said panel, an outer flap foldably attached to said front wall of said body portion, said side flap having a top edge facing away from said outer flap, an inner flap foldably attached to said rear wall of said body portion, the length of said inner flap of said body portion being greater than the length of said outer flap of said body portion, an inner flap foldably attached to said rear wall of said lid portion and an outer flap foldably attached to said front wall of said lid portion, the bottom edge of said inner flap of said lid portion being coextensive with a straight line coextensive with the foldable scored line between said top wall and rear wall of said lid portion, and the top edge of said inner flap of said lid portion being spaced from said bottom edge thereof, the length of said outer flap of said lid portion being greater than the length of said inner flap of said lid portion;

4. said securing of the respective body and lid portions. 2. A method of erecting a one-piece blank as defined in claim 1 wherein the relative dimensions of said inner flap of said lid portion and said side flap of said body portion of each of said outer portions are such that said distance of said top edge of said inner flap of said lid portion from said straight line coextensive with said foldable scored line between said rear wall and bottom wall of said body portion and said distance of said top edge of said side flap of said body portion from said straight line coextensive with said foldable scored line between said front wall and bottom wall of said body portion are the same at corresponding locations along the entire lengths of said top edge of said inner flap of said lid portion and said top edge of said side flap of said body portion, whereby during the step of forming said rear wall, bottom wall, front wall, panel and inner flaps of said body portion and said rear wall, top wall, front wall and inner flaps of said lid portion about said contents said top edge of each said side flap of said body portion and said respective top edge of said inner flap of said lid portion are caused to abut each other.

2. the relative dimensions of said inner flap of said lid portion and said side flap of said body portion of each of said outer portions being such that the distance of said top edge of said inner flap of said lid portion from a straight line coextensive with the foldable scored line between said rear wall and bottom wall of said body portion, said distance being measured parallel to the fold line between said inner flap and said rear wall of said body portion, is at least as great as the distance of said top edge of said side flap of said body portion from a straight line coextensive with the foldable scored line between said front wall and bottom wall of said body portion, said distance being measured parallel to the fold line between said outer flap and said front wall of said body portion, at corresponding locations along the entire lengths of said top edge of said inner flap of said lid portion and said top edge of said side flap of said body portion;

(b) said method comprising the following steps in the recited order;

1. forming said rear wall, bottom wall, front wall, panel and inner flaps of said body portion and said rear wall, top wall, front wall and inner flaps of said lid portion about said contents;

2.

3. folding each of said side flaps of said body portion and securing said side flaps of said body portion to the respective inner flaps of said body portion with said lid portion in closed position;

3. then folding each of said outer flaps of said body and lid portions and securing said outer flaps of said body and lid portions to the respective inner flaps of said body and lid portions with said lid portion maintained in closed position, whereby said top edge of each said side flap of said body portion and the respective top edge of said inner flap of said lid portion confront each other along their entire lengths, and said side flap of said body portion does not overlap said inner flap of said lid portion, said relative dimensions of said respective inner flaps of said lid portion and said side flaps of said body portion assuring that said side flaps of said body portion do not intervene between and are not secured to said inner and outer flaps of said lid portion during said folding and

7. A method of erecting a one-piece blank as defined in claim 3 wherein the relative dimensions of said inner flap of said lid portion and said side flap of said body portion of each of said outer portions are such that said distance of said top edge of said inner flap of said lid portion from said straight line coextensive with said foldable scored line between said rear wall and bottom wall of said body portion and said distance of said top edge of said side flap of said body portion from said straight line coextensive with said foldable scored line between said front wall and bottom wall of said body portion are the same at corresponding locations along the entire lengths of said top edge of said inner flap of said lid portion and said top edge of said side flap of said body portion, whereby during the step of forming said rear wall, bottom wall, front wall, panel and inner flaps of said body portion and said rear wall, top wall, front wall and inner flaps of said lid portion about said contents said top edge of each said side flap of said body portion and said respective top edge of said inner flap of said lid portion are caused to abut each other.

5. A method of erecting a one-piece blank made of a single layer of material of substantially rectangular configuration cut and scored for folding about contents to form a hinged lid packet having a lid portion hinged to a body portion;

(a) wherein said blank comprises;

6. a central portion extending from the top to the bottom of said blank and divided by at least six parallel spaced-apart transverse foldable scored lines into, consecutively from the top to the bottom of said blank, a panel, a front wall, a bottom wall and a rear wall for forming said body portion and a rear wall, a top wall and a front wall for forming said lid portion, the combined length of said panel and front wall of said body portion being substantially the same as the combined length of said rear walls of said body and lid portions;

and

2. an outer portion at each of the left and right sides of said central portion, each outer portion comprising a side flap foldably attached to said panel, an outer flap foldably attached to said front wall of said body portion, said side flap having a top edge facing away from said outer flap, an inner flap foldably attached to said rear wall of said body portion, the length of said inner flap of said body portion being greater than the length of said outer flap of said body portion, an inner flap foldably attached to said rear wall of said lid portion and an outer flap foldably attached to said front wall of said lid portion, the bottom edge of said inner flap of said lid portion being coextensive with a straight line coextensive with the foldable scored line between said top wall and rear wall of said lid portion, and the top edge of said inner flap of said lid portion being spaced from said bottom edge thereof, the length of said outer flap of said lid portion being greater than the length of said inner flap of said lid portion;

3. the relative dimensions of said inner flap of said lip portion and said side flap of said body portion of each of said outer portions being such that the distance of said top edge of said inner flap of said lid portion from a straight line coextensive with the foldable scored line between said rear wall and bottom wall of said body portion, said distance being measured parallel to the fold line between said inner flap and said rear wall of said body portion, is at least as great as the distance of said top edge of said side flap of said body portion from a straight line coextensive with the foldable scored line between said front wall and bottom wall of said body portion, said distance being measured parallel to the fold line between said outer flap and said front wall of said body portion, at corresponding locations along the entire lengths of said top edge of said inner flap of said lid portion and said top edge of said side flap of said body portion;

(b) said method comprising the following steps in the recited order;

1. forming said rear wall, bottom wall, front wall, panel and inner flaps of said body portion and said rear wall, top wall, front wall and inner flaps of said lid portion about said contents;

2. folding said side and outer flaps of said body portion and said outer flaps of said lid portion simultaneously about opposite sides of said contents with said lid portion in closed position, whereby said top edge of each said side flap of said body portion and the respective top edge of said inner flap of said lid portion confront each other along their entire lengths, and said side flap of said body portion does not overlap said inner flap of said lid portion;

3. securing said side and outer flaps of said body portion to the respective inner flaps of said body portion and securing said outer flaps of said lid portion to the respective inner flaps of said lid portion, said relative dimensions of said respective inner flaps of said lid portion and said side flaps of said body portion assuring that said side flaps of said body portion do not intervene between and are not secured to said inner and outer flaps of said lid portion during said folding and said securing of the respective body and lid portions.