Hinge Lid Container Abutment Geometry for Expanded Surface Area
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Solution Overview
Problem
Standard hinge lid cigarette packs have limited internal and external surface areas for displaying consumer information, and existing solutions to increase these areas either enlarge the container size or compromise its strength and rigidity, while also requiring significant modifications to packaging machinery.
Innovation Solution
A hinge lid container design with a unique line of abutment between the lid and box portions, featuring angles φ and θ that differ from standard packs, allowing for a larger internal surface area without increasing overall size or material usage, and maintaining strength by optimizing the angles φ and α, which can be produced using minimal modifications to existing machinery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the container size is increased to provide greater surface area for consumer information, then the available printing area is improved, but the portability and compactness of the container deteriorates
Solution Approach 1:
The invention utilizes the internal surface area of the container walls (particularly the rear wall and side walls) as an additional dimension for displaying consumer information. By printing on the inner surfaces that are visible when the lid is open, the design expands the information display area from just the lid exterior to include multiple internal surfaces, effectively adding dimensional space without increasing the external footprint of the container.
2Area of stationary object
If additional panels or coupons are incorporated into the container to increase information display area, then the printing surface area is improved, but the structural simplicity and manufacturing ease deteriorates
Solution Approach 1:
The container walls serve multiple functions: they provide the structural framework of the container and simultaneously serve as information display surfaces. The rear wall and side walls are printed with consumer information, allowing these structural components to fulfill both their mechanical support role and their communication role, eliminating the need for separate informational panels or coupons.
3Area of stationary object
If the lid front wall height is increased to provide more printing area, then the available surface area is improved, but the amount of material required and manufacturing cost deteriorates
Solution Approach 1:
Instead of increasing the lid front wall height to gain printing area, the invention transfers the information display function to the internal surfaces of the rear wall and side walls. This approach utilizes previously underutilized surfaces within the container volume, providing additional printing area without requiring extra material or increasing the lid dimensions.
4Area of stationary object
If the container is designed with greater internal surface area for information display, then the consumer information space is improved, but the strength and rigidity of the container may deteriorate
Solution Approach 1:
The rear wall and side walls perform dual functions as both structural support elements and information display surfaces. By printing consumer information directly on these load-bearing walls, the design eliminates the need for additional non-structural panels that would compromise strength, while the structural walls themselves provide both mechanical support and communication functions.
Data Source
Figure 1~1a
Figure 2~2a
AI summary
A container (30)(50) for smoking articles having a front wall, a rear wall and opposed side walls extending therebetween comprises: a box portion (32)(52); and a lid portion (34)(54) hinged to the box portion about a hinge line. At each side wall of the container, the angle f between the front edge of the side wall (38a)(58a) of the lid portion (34)(54) and the lower edge thereof is greater than the angle ? defined between the rear edge of the side wall and a straight line extending between a first point (A) where the hinge line meets the side wall and a second point (B) where the upper edge of a front wall (36)(56) of the box portion (32)(52) meets the side wall. When the container (30)(50) is closed the free edges of the lid portion (34)(54) abut the free edges of the box portion (32)(52) such that the line of abutment between points A and B comprises a first linear portion (42)(72) and a second linear portion (44)(74).