Collapsible Umbrella Pocket With Separable Zipper
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Solution Overview
Problem
Existing pocket umbrellas lack a practical solution for being transported both when wet and dry without the need for compact folding, and there is a risk of the umbrella detaching and getting lost when carried on a loop or chain.
Innovation Solution
A pocket with three closed sides and one open side, featuring a separable zipper or alternative fastening means, allowing the umbrella to be stowed and transported without folding, while the bag can be narrowed to prevent loss and keep the umbrella secure, and made of waterproof material to prevent moisture from escaping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pocket umbrella is transported in a non-constricted pocket, then the umbrella can be easily accessed and the pocket remains comfortable to carry, but the umbrella may detach and get lost
Solution Approach 1:
The pocket transitions from a constricted state (when fastening means are connected) to a non-constricted state (when fastening means are separated), allowing the pocket to adapt its shape and size dynamically based on whether the umbrella needs to be secured or accessed
Solution Approach 2:
The fastening means is divided into two separable parts: one part attached to the pocket and another part attached to the umbrella. This segmentation allows the fastening function to be activated only when needed, maintaining both security and accessibility
2Reliability
If the pocket is made constricted by connecting fastening means, then the umbrella is securely attached and less likely to be lost, but the pocket becomes harder to access and less comfortable to carry
Solution Approach 1:
The fastening means serves multiple functions: it secures the umbrella to the pocket, constricts the pocket to prevent detachment, and can be easily separated when access is needed. This multi-functionality reduces the need for additional separate components
3Reliability
If the pocket is designed to fit the umbrella tightly, then the umbrella cannot slip out easily, but the pocket may require compact folding of the umbrella which is inconvenient
Solution Approach 1:
The pocket's effective size and shape are changed by activating the fastening means, which constricts the pocket around the umbrella. This parameter change allows the pocket to provide a tight fit without requiring the umbrella to be folded compactly or the pocket to be permanently designed in a constricted state
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The bag (10) has three closed sides and one open side, a fastening element (26) arranged substantially perpendicular to the open side (20), and two complementary parts (22,24). The fastening element is a divisible slide fastener. The fastening elements are arranged in the edge regions (28,30) essentially vertically to the open side. The bag is manufactured from a water-impermeable material.