Expandable Ring Structure with Segmented Blocks and Springs
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Solution Overview
Problem
Conventional rings and bracelets are rigid and inflexible, making them uncomfortable to wear as they often slide due to mismatched sizes, and lack adaptability to changing finger or wrist dimensions.
Innovation Solution
An expandable ring structure composed of coupled blocks with translational movement and internal springs, allowing for expansion and compression to fit various sizes comfortably, while maintaining a solid appearance until stretched.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a ring is made to a specific size for the wearer, then it provides an adequate fit for the intended area, but it becomes difficult or uncomfortable to put on if the knuckles are larger in circumference
Solution Approach 1:
The ring structure transitions from a static fixed size to a dynamic expandable structure. Multiple blocks are connected by springs that allow the ring to expand when force is applied (making it easier to put on over knuckles) and contract to maintain a precise fit when worn.
Solution Approach 2:
The ring is divided into multiple discrete blocks connected by springs rather than being a single solid structure. This segmentation allows each block to move relative to others, enabling the ring to expand and contract while maintaining overall structural integrity and precise sizing.
2Ease of operation
If a ring is made slightly larger than the finger cross-section to accommodate knuckles, then it can be put on easily, but it causes the ring to slide along the finger
Solution Approach 1:
The dynamic spring mechanism allows the ring to automatically adjust its circumference. When put on, it expands to accommodate the knuckle, then contracts to fit precisely at the intended location, preventing sliding while maintaining ease of placement.
Solution Approach 2:
The ring's circumference parameter is made variable through the spring mechanism. It can change from an expanded state (for easy placement) to a contracted state (for stable positioning), allowing the same ring to fulfill both requirements at different times.
3Ease of operation
If a bracelet is made rigid and considerably oversized to slip over the wrist, then it can be put on easily, but it becomes loose and can slide with ease or even slither through the wrist
Solution Approach 1:
The bracelet uses a dynamic block-and-spring structure that expands when force is applied to slip over the wrist, then contracts to fit snugly. This eliminates the need for a permanently oversized design while maintaining ease of placement.
Solution Approach 2:
Dividing the bracelet into segmented blocks connected by springs allows it to flex and expand for easy placement, then maintain a secure fitted position through the elastic recovery of the springs, preventing sliding or slithering.
4Adaptability or versatility
If a ring structure is made expandable with moving parts, then it can accommodate different sizes, but it may compromise the solid-like appearance and increase complexity
Solution Approach 1:
The ring is segmented into blocks connected by springs, allowing expandability while maintaining a relatively simple modular structure. The segmentation enables size adjustment without requiring complex mechanisms.
Solution Approach 2:
The spring connections between blocks create a flexible yet solid-appearing structure. When contracted, the springs are compressed and not visible, giving the appearance of a solid ring. When expanded, the flexibility allows size adjustment.
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 expandable ring structure provides a comfortable fit by accommodating different sizes and returning to its original shape, offering a secure and adjustable solution for wearers.
Implementation Method 1
A tensioned spring is inserted through the spring channels of the blocks, the spring channels forming a continuous, closed loop, and curved internal channel to the ring structure. The spring allow allowing for expansion and compression of the expandable ring structure.
Data Source
AI summary
Disclosed herein is a low profile expandable ring structure comprising a plurality of coupled blocks that each have a certain degree of translational movement with respect to each other. Each block has one or more downward curved loops or tubes protruding on the front side of the block which are inserted into openings on an adjacent block. A tensioned spring, passed through an internal channel of the coupled blocks, maintains the ring structure in a closed appearance but allows for expansion of the expandable ring structure through the translational movement of the blocks. The low-profile nature allows the expandable ring structure to be comfortable for the wearer.