Packaging container and method for its production

Patent metadata

Field	Value
Publication number	US-9586717-B2
Application number	US-201414771979-A
Country	US
Kind code	B2
Filing date	Feb 18, 2014
Priority date	Mar 4, 2013
Publication date	Mar 7, 2017
Grant date	Mar 7, 2017

Abstract

A packaging container includes at least three integrally coupled panels connected by longitudinal scoring lines for forming a bottom and connecting sides of a rectangular case, which can be raised from an individual cardboard sheet; at least one end of the container is countersunk through an end panel arranged retracted inside a reinforced end zone including strips of side and bottom panel material, folded back against the bottom and side panels along a scoring line extending transversely through the bottom and side panels, wherein the end panel, via a transverse lower scoring line, is united to the folded-back strip of the bottom panel, and the end panel, in each side thereof, includes a respective tab connected with the end panel via a scoring line which extends the longitudinal scoring lines through the end zone, and the tab extends beside and parallel to an adjacent side panel of the container.

First claim

The invention claimed is:

1. Packaging container comprising:
at least three integratedly coupled panels, which are connected by longitudinal scoring lines ( 2 , 3 ) for the formation of a bottom ( 4 ) and connecting sides ( 5 , 6 ) of a rectangular case, which can be erected from an individual sheet ( 1 ) of cardboard;
wherein at least one end of the packaging container is countersunk through an end panel ( 8 ), which is arranged retracted inside a reinforced end zone, the reinforced end zone comprising strips ( 17 , 18 , 19 ) of side panel material and bottom panel material, which are folded back against the bottom and side panels along a scoring line ( 7 ) applied in the transverse direction through the bottom and side panels,
wherein the end panel ( 8 ), via a transverse lower scoring line ( 9 ), is united to one of the strips ( 19 ) of the bottom panel material that has been folded back against the bottom panel, and
wherein the end panel ( 8 ), in each one of the sides thereof, comprises a respective end panel tab ( 15 , 16 ) connected with the end panel ( 8 ) via a scoring line in the extension of the longitudinal scoring lines ( 2 , 3 ) through the end zone,
wherein each said end panel tab ( 15 , 16 ) extends beside and parallel to the adjacent side panel ( 5 , 6 ) of the packaging container, and
wherein respective tongues ( 20 , 21 ) extend freely from each of opposite ends of a strip ( 22 ) of the end panel material, the strip ( 22 ) of the end panel material being connected to the end panel ( 8 ) via a transverse upper scoring line ( 10 ) parallel to the lower scoring line ( 9 ), each of the tongues ( 20 , 21 ) being inserted between a respective said side panel ( 5 , 6 ) and a respective said strip ( 17 , 18 ) of the side panel material that has been folded back.

2. Packaging container according to claim 1 , further comprising a separate lid having a lid panel ( 23 ) and two lid tabs ( 24 , 25 ) connecting to sides of the lid panel via longitudinal scoring lines.

3. Packaging container according to claim 2 , wherein the two lid tabs ( 24 , 25 ) are dimensioned to be insertable into gaps ( 31 ) between the side panels ( 2 , 3 ) and a respective one of the strips ( 17 , 18 ) of the side panel material that has been folded back.

4. Packaging container according to claim 1 , further comprising at least one additional panel ( 28 ) integratedly coupled to one or both said side panels ( 5 , 6 ) via a longitudinal scoring line.

5. Packaging container according to claim 4 , wherein at least one of the end panel tabs ( 15 ) is folded back against a respective one of the side panels ( 5 , 6 ).

6. Method for the production of a packaging container according to claim 1 , which method comprises:
folding the end panel tabs ( 15 , 16 ) along the longitudinal scoring lines ( 2 , 3 ) so that said end panel tabs ( 15 , 16 ) rest on top of each other and on top of the end panel ( 8 ),
forming a reinforced end zone by folding back, along a first transverse scoring line ( 7 ), the strips ( 17 , 18 , 19 ) of side and bottom panel material against the side and bottom panels ( 4 , 5 , 6 ), thereby forming a gap ( 31 ) between the respective side panel ( 5 , 6 ) and the folded-back strip ( 17 , 18 ) of material connecting to the side panel,
raising the side panels ( 5 , 6 ) by folding along the longitudinal scoring lines ( 2 , 3 ),
raising the end panel ( 8 ) by folding along the lower scoring line ( 9 ),
locking the side panels ( 5 , 6 ) in an erected position by inserting the end panel tongues ( 20 , 21 ) into the gaps ( 31 ), and
supporting the end panel ( 8 ) in an erected position by folding the end panel tabs ( 15 , 16 ) inward to rest against the bottom panel ( 4 ).

7. Method according to claim 6 , wherein closure of the packaging container comprises insertion of lid tabs ( 24 , 25 ), which are connected to a separate lid panel ( 23 ), into the gaps ( 31 ) which are formed between the side panels ( 5 , 6 ) and the respective strips ( 17 , 18 ) of side panel material that have been folded back.

8. Method according to claim 6 , wherein closure of the packaging container comprises securing lid tabs ( 24 , 25 ), which are suspended from a separate lid panel ( 23 ), against the outside of the side panels ( 5 , 6 ).

9. Method according to claim 6 , wherein closure of the packaging container comprises securing a lid tab ( 30 ), which is suspended from a lid panel ( 28 ) which is connected to one said side panel ( 5 , 6 ) , to said side panel ( 5 , 6 ) opposite said side panel to which the lid panel ( 28 ) is coupled.

Assignees

• Packsize Llc

Inventors

• Pettersson Niklas

Classifications

• B65D5/0245 Primary

  with end closures formed by inward folding of flaps, to form a sunken or hollow end wall, e.g. for the packaging of books (internal supporting elements B65D5/50) · CPC title

• B65D5/6661

  Flaps provided over the total length of the lid edge opposite to the hinge · CPC title

• B65D5/68

  Telescope flanged lids · CPC title

• B65D5/2095

  a part of the folded-up portions defining an inwardly folded ledge at the edges of the central panel · CPC title

• B65D5/566 Primary

  Linings made of relatively rigid sheet material, e.g. carton (B65D5/0281 and B65D5/58 takes precedence; combined with a flexible lining B65D5/56, B65D5/60; for thermal insulating purposes B65D81/3858; for shock absorbing purposes B65D81/1275) · CPC title