Tetrahedral Food Pouch With Guided Tear Opening
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Solution Overview
Problem
Existing food pouches are difficult to open and do not provide a stable container for easy access to the contents, often rustling and making noise when opened.
Innovation Solution
A tetrahedral-shaped pouch with a longitudinal sealing and a predefined notch on one edge allows for easy opening by tearing along a guided tear line, forming a bowl-shaped receptacle for convenient access to the contents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional sealed pouch is used, then the contents are protected and fresh, but the pouch is difficult to open and does not provide stable access to contents
Solution Approach 1:
A notch is pre-formed in the sealing edge of the pouch, creating a predetermined starting point for tearing. This preliminary structural feature guides the opening action and ensures consistent, easy opening while maintaining the integrity of the main sealing structure until the user intentionally initiates opening at the notch.
2Ease of operation
If a conventional pouch is opened, then access to contents is possible, but the pouch rustles and makes noise
Solution Approach 1:
The predetermined tear line with notch creates a controlled opening path that prevents uncontrolled flapping and rustling of the pouch material. The structured opening mechanism guides the material separation in a specific direction, reducing random movements that generate noise.
Solution Approach 2:
The pouch structure is modified locally at the opening region with the notch and tear line features, while the rest of the pouch maintains its original properties. This localized structural enhancement provides controlled opening behavior without affecting the overall pouch integrity or requiring changes to the entire pouch structure.
3Stability of the object's composition
If a tetrahedral shape is used, then the pouch provides stable container structure, but the opening mechanism becomes complex
Solution Approach 1:
The notch is positioned at a specific location on one of the sealing edges of the tetrahedral pouch, creating a predetermined tear line that simplifies the opening process. This preliminary feature provides a clear starting point for opening without requiring complex mechanisms, maintaining the stability of the tetrahedral structure while enabling easy access.
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 opens smoothly without rustling, providing a stable container for easy access to the contents, maintaining freshness and reducing noise during use.
Implementation Method 1
a tear area for generating an opening starting from the notch in the first sealing edge and having one border extending substantially along the longitudinal sealing
Implementation Method 2
The overlapped and sealed edge sections are referred to herein as the longitudinal sealing
Data Source
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AI summary
A tetrahedral-shaped pouch (10) can be opened by tearing from a cut (5) in a first lateral sealing edge (1) and along a longitudinal sealing (7) substantially perpendicular to the first lateral sealing edge (1) to conveniently access non-liquid food contents, such as seeds or nuts. A short longitudinal cut (5) can be made into but not all the way through the first lateral sealing edge (1), adjacent where the longitudinal sealing (7) is positioned on the first lateral sealing edge (1). When opening the pouch (10), by initiating a tear starting at the cut (5), the packaging material will tear along, but not cross the longitudinal sealing (7), since the longitudinal sealing (7) is formed from an overlapped and doubly thick section of packaging material. The pouch (10) will therefore open, on at least one side of the tetrahedron, along a predictable tear line (4) following the longitudinal sealing (7), to form a bowl-shaped receptacle from which the contained food product can be conveniently accessed.