Flexible Writing Instrument Packaging with Fixed Caps
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Solution Overview
Problem
Conventional packaging for writing instruments with capillary tips, such as felt-tip pens, is not durable, leads to cap loss, and makes color selection difficult, especially for children, as it often deteriorates quickly and lacks secure storage and easy visibility of colors.
Innovation Solution
A packaging design featuring a flexible and elastic shell with fixed caps, allowing for secure attachment and easy color selection, transitioning from a concave storage position to a convex use position, ensuring stability and preventing cap loss, while meeting safety standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If cardboard or plastic sleeve packaging is used, then the packaging is lightweight and inexpensive, but the packaging is not durable and deteriorates quickly
Solution Approach 1:
The patent uses a flexible plastic pouch with a zip closure mechanism that provides durability while remaining lightweight and cost-effective. The pouch can be opened and closed repeatedly, allowing the packaging to be durable yet inexpensive to manufacture.
2Loss of information
If transparent plastic pockets are used, then color visualization is good, but the markers are tight between them and difficult to remove or store
Solution Approach 1:
The patent employs a zip closure mechanism that allows the pouch to be dynamically opened and closed. This enables easy access to markers while maintaining secure closure, solving the problem of markers being too tight to remove while preserving color visibility through the transparent material.
3Reliability
If caps are connected by a rigid link, then cap loss is prevented, but the writing instruments can become entangled and color selection is difficult
Solution Approach 1:
The patent combines the cap retention function with the packaging structure itself by using a zip closure that secures all markers in place. This merges the cap loss prevention mechanism with the storage function, eliminating the need for separate links while maintaining accessibility and preventing entanglement.
4Reliability
If metal box packaging is used, then durability and stability are good, but the child can overturn the box with risk of losing writing instruments
Solution Approach 1:
The patent uses a flexible plastic pouch that conforms to the markers inside, creating a stable, low-center-of-gravity package that is difficult to overturn. The flexibility allows the pouch to adapt to the contents, distributing weight evenly and reducing the risk of instruments spilling out during accidental drops or overturning.
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 packaging is durable, prevents cap loss, facilitates easy color selection, and ensures stable storage and use, meeting safety standards by keeping caps non-removable and the packaging stable to prevent accidents.
Implementation Method 1
a flexible and elastic shell with fixed caps, allowing for secure attachment and easy color selection, transitioning from a concave storage position to a convex use position
Data Source
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AI summary
The packing (1) has a shell (2) including a face (3) on which caps (5) of writing instruments (6) are fixed, and another face. The shell is configured so that the packing passes, by application of predetermined pressure on a predetermined zone of the latter face, between a writing instruments storage position in which the former face is concave and a writing instruments usage position in which the former face is convex. The shell is made of a synthetic material such as rubber or thermoplastic elastomer.