Adjustable Ring Structure with Nested Inner and Outer Rings

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Solution Overview

Problem

Conventional rings have fixed sizes, making them unsuitable for wearers with varying finger widths due to changes in body shape or size, and existing solutions either increase production costs or risk deformation when using flexible materials.

Innovation Solution

A ring structure with an adjustable size, comprising an outer ring and a removably fitted inner ring, utilizing a concave-convex design with protrusions and slots for secure engagement, allowing for various diameters and enhanced structural stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If rings are produced with different diameters to accommodate various finger sizes, then adaptability is improved, but manufacturing cost increases

Engineering Contradiction:

Improvering size adaptabilityVSAvoidmanufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The ring is divided into two separate components: an outer ring and an inner ring. The outer ring maintains a fixed size while the inner ring can be removed or inserted to adjust the effective inner diameter. This segmentation allows a single outer ring to serve multiple size requirements when combined with different inner rings, reducing the need to manufacture multiple complete rings of different sizes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The inner ring is nested inside the outer ring, forming a composite structure. The inner ring fits within the outer ring's inner cavity, and when assembled, creates an adjustable inner diameter. This nesting approach allows one ring structure to provide multiple size options by simply adding or removing the inner ring component.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Adaptability or versatility

If flexible material is used to form C-shaped adjustable rings, then adaptability is improved, but structural strength deteriorates

Engineering Contradiction:

Improvering size adjustabilityVSAvoidring structural strength

Core Design Contradiction:

Adaptability or versatilityVSStrength

Solution Approach 1:

The ring structure is segmented into two rigid components (outer ring and inner ring) rather than using a single flexible material. This segmentation allows each component to maintain its structural integrity and strength while still providing adjustability through the removable inner ring mechanism.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The ring transitions from a static fixed-size structure to a dynamic adjustable structure by allowing the inner ring to be inserted or removed. This dynamic adjustment capability is achieved through mechanical design rather than material flexibility, preserving strength while enabling size adaptation.

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If the inner ring is removably fitted inside the outer ring to reduce diameter, then adaptability is improved, but assembly reliability may worsen

Engineering Contradiction:

Improvering size variabilityVSAvoidassembly stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

A fastening mechanism acts as an intermediary between the inner ring and outer ring to secure their relative positions. This intermediary component ensures that once assembled, the inner ring remains firmly held within the outer ring, preventing unintended displacement while allowing intentional removal when needed.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The fastening mechanism replaces reliance on friction or interference fits alone with a more reliable mechanical locking system. This substitution ensures positive engagement and maintains assembly reliability even under varying wear conditions or material tolerances.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS11559120B2Ring structure with adjustable size

Publication Date: 2023.01.24 ROCKROCKET CO LTD

AI summary

The disclosure relates to a ring structure with an adjustable size, which includes an outer ring, an inner ring, and a concave-convex structure. The outer ring has an inner wall. The inner ring is removably fitted inside the outer ring and has an outer wall abutting against the inner wall. The concave-convex structure includes a protrusion connected on either one of the inner wall of the outer ring and the outer wall of the inner ring and a slot disposed on another one of the inner wall of the outer ring and the outer wall of the inner ring. The protrusion is mortised in the slot. Therefore, the inner ring is removably fitted inside the outer ring to generate a ring with various sizes for different users. The ring structure of this disclosure may have the advantages of providing various sizes and saving costs.