Two-pocket pouch with adhered extension flap for single-action opening
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Solution Overview
Problem
Existing tobacco pouches require two separate steps to open, limiting ease of access and space for branding, and are complex to manufacture, with the extension flap typically wrapped around the back panel.
Innovation Solution
A two-pocket pouch design with symmetric pockets featuring a cover flap and extension flap that fold inwardly and adhere to each other, allowing for single-action opening and a non-split back panel, providing additional storage space and ease of manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the extension flap is wrapped around the back panel, then the pouch provides a long flap for consumer use, but the pouch requires two separate steps to open and the back panel is split
Solution Approach 1:
The pouch is divided into two separate pockets that are symmetric about a mirror folding line, allowing each pocket to be opened independently. This segmentation enables the flaps to be positioned without wrapping around the back panel, reducing the opening steps while maintaining flap length.
Solution Approach 2:
The extension flap is positioned asymmetrically relative to the back panel, extending from the cover flap toward the front wall rather than wrapping around the back. This asymmetric positioning eliminates the need to wrap the flap around the back panel, simplifying the opening operation to a single action.
2Length of moving object
If the extension flap is wrapped around the back panel, then the pouch provides a long flap for consumer use, but the space for branding and information is reduced
Solution Approach 1:
By segmenting the pouch into two separate pockets with symmetric design, the back panel remains intact and non-split. This provides maximum available area on the back panel for branding and information purposes while still delivering extended flap length through the symmetric pocket structure.
Solution Approach 2:
The extension flap achieves its extended length by utilizing the vertical dimension and folding structure rather than wrapping horizontally around the back panel. This dimensional approach maintains full back panel area availability while providing the necessary flap length for consumer use.
3Length of moving object
If the extension flap is wrapped around the back panel, then the pouch provides a long flap for consumer use, but the manufacturing complexity increases
Solution Approach 1:
The symmetric two-pocket design with independent flaps simplifies the manufacturing process by eliminating the complex wrapping and sealing operations required for a single pouch with a flap wrapped around the back panel. Each pocket can be manufactured and sealed independently, reducing overall manufacturing complexity.
Solution Approach 2:
Instead of wrapping the extension flap around the back panel as in conventional designs, the invention inverts the approach by having the extension flap extend from the cover flap toward the front wall. This inverted configuration simplifies the manufacturing process while maintaining the beneficial long flap feature.
4Ease of operation
If the cover flap and extension flap are adhered together, then the pouch enables single-action opening, but the adhesion must be peelable for access
Solution Approach 1:
The adhesion between the cover flap and extension flap uses a peelable adhesive with specific peel force characteristics (1-10 Newton for 35mm). This parameter optimization allows the flaps to remain securely adhered during normal use while enabling easy single-action opening when needed, balancing reliability with ease of operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables easy access to contents with a single action, maximizes space for branding, and simplifies manufacturing by eliminating the need for wrapping the extension flap around the back panel, while maintaining the benefits of a long flap for consumer use.
Implementation Method 1
The inner surface of the extension flap adheres to the inner surface of the cover flap. The adhesion preferably is peelable. In a preferred embodiment, the peelable adhesion is from 1 to 10 Newton for 35 millimeters as measured by the peel force test for pouches.
Implementation Method 2
The pocket front wall and the pocket rear wall are permanently sealed to each other on their side and bottom edges of the pocket front wall and the pocket rear wall by way of thermo sealing, cold sealing, ultrasound sealing or an adhesive.
Implementation Method 3
The pocket front wall and the pocket rear wall are permanently sealed to each other on their side and bottom edges of the pocket front wall and the pocket rear wall by way of thermo sealing, cold sealing, ultrasound sealing or an adhesive.
Data Source
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AI summary
A two-pocket pouch is provided comprising a first pocket and a second pocket. The first pocket and the second pocket are symmetric about an optionally perforated mirror folding line and are optionally connected. The pouch is suitable for storing consumer articles, in particular loose tobacco. Furthermore, a method for making same is disclosed. The first and the second pockets in their closed position comprise a pocket front wall and a pocket rear wall, wherein an access opening is provided between the upper edges of the pocket front wall and the pocket rear wall. The pocket further comprises a cover flap. The cover flap extends from the pocket rear wall. An extension flap extends from the cover flap. In the closed position of the pouch, the cover flap is folded over the front wall in order to overlie the access opening. In the closed position of the pouch, the extension flap is folded between the pouch front wall and the cover flap. In the closed position of the pouch, the inner surface of the extension flap adheres to the inner surface of the cover flap.