US 8,038,001 B2 · Curved cigarette pack flap formation on curved surfaces

Abstract

The curved pack end flap (20) of the present invention can generally be used in any pack that has a surface that is curved inwards. The curved pack end flap (20) incorporates multiple panels (27) interconnected at points (30) other than the folding edge (51) to provide for the deformation of the end flap when the surface, from which the curved pack end flap (20) is attached, is curved inwards during the formation of the pack. The folded curved pack end flap is subsequently affixed to a second surface in the formation of the pack. The curved pack end flap (20) with the interconnected panels (27) functions to maintain positional accuracy, decrease tearing of the end flap panels (27) during the folding process, and allow for glue application to be more precise during assembly as compared to the end flap of the prior art.

Claims19

Dependent claims

A blank for forming a curved pack, comprising:

a main portion divided into a lid portion and a body portion;
the lid portion forming a curved front surface, a top surface, two side surfaces, two side flaps, and a curved back surface;
the body portion forming a curved front surface, a bottom surface, two side surfaces, two side flaps, and a curved back surface;
at least one end flap extending from an edge of at least one of the curved surfaces, the at least one end flap being formed of a plurality of separate panels interconnected at points other than at the edge of at least one of the curved surfaces, the at least one end flap including a continuous edge, formed by an upper left side panel, a central panel and an upper right side panel, opposite to the edge of at least one of the curved surfaces;
and said end flap having a plurality of expansion areas staggered between said outer continuous edge and said curved back panel.

2 more elements

Dependencies are inferred from the claim text.

Curved cigarette pack flap formation on curved surfaces

Life of this patent

Curved cigarette pack flap formation on curved surfaces

Life of this patent

Abstract

Claims19