Pouch Cover Flap and Extension Flap Adhesion
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Solution Overview
Problem
Existing tobacco pouches require two steps to open, limiting ease of access and offering limited space for branding and storage, while being complex to manufacture.
Innovation Solution
A pouch design featuring a cover flap and extension flap where the inner surface of the extension flap adheres to the inner surface of the cover flap, allowing for a single-action opening and a non-split back panel, with peelable adhesion along side edges, enabling easy access and additional storage space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the extension flap is wrapped around the pouch bottom and connected to the pouch rear wall, then a long flap is provided to the consumer, but two separate steps are needed to open the pouch
Solution Approach 1:
The pouch structure is segmented into distinct components: pouch front wall, pouch rear wall, cover flap, and extension flap. The extension flap is separated from the pouch rear wall connection and instead attached to the cover flap, allowing the cover flap to be opened first and the extension flap to follow automatically, reducing opening steps from two to one.
Solution Approach 2:
The extension flap is preliminarily attached to the cover flap rather than being connected to the pouch rear wall. This preliminary attachment arrangement ensures that when the cover flap is opened, the extension flap is automatically pulled open as well, eliminating the need for a separate opening action.
2Length of moving object
If the extension flap is wrapped around the pouch bottom, then a long flap is provided, but the back panel is split reducing branding space
Solution Approach 1:
The pouch structure is segmented so that the extension flap is a separate component attached to the cover flap rather than being integrated into the pouch rear wall. This segmentation allows the pouch rear wall to remain intact and continuous, maximizing the back panel area available for branding while still providing the extension flap functionality.
3Length of moving object
If the extension flap is wrapped around the pouch bottom, then a long flap is provided, but the manufacturing process becomes complex
Solution Approach 1:
The pouch is manufactured as segmented components (pouch front wall, pouch rear wall, cover flap, extension flap) that are assembled together. The extension flap is attached to the cover flap in a single location rather than being wrapped around the pouch bottom and connected to the rear wall, simplifying the manufacturing process while maintaining the long flap feature.
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
The pouch can be easily opened with one action, maintains a long flap for user convenience, provides more space for branding, and is simpler to manufacture, with the adhered flaps forming an additional pocket for storage.
Implementation Method 1
The inner surface of the extension flap adheres to the inner surface of the cover flap. This adherence is peelable.
Data Source
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AI summary
A pouch (10), in particular for loose tobacco, and a method for making same are disclosed. The pouch is in its closed position and comprises a pouch front wall (22) and a pouch rear wall (24), wherein an access opening is provided between the upper edges of the pouch front wall and the pouch rear wall, the pouch further comprising a cover flap (12). The cover flap depends from the pouch rear wall. An extension flap (14) depends 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 peelably to the inner surface of the cover flap.