Automatic Ring Sizing Mechanism with Radial Slot and Pin
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Solution Overview
Problem
Existing jewelry ring sizing systems fail to accommodate fluctuations in finger size due to physiological changes or temperature variations while also ensuring adequate light reaches gemstones, often introducing imperfections during resizing.
Innovation Solution
A jewelry ring design featuring an outer and inner ring connected by a connecting member with a slot and pin mechanism, allowing the size adjusting device to translate radially, and an arcuate insert with a biasing member to adjust diameter between smallest and largest positions, ensuring comfort and optimal gemstone illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a ring is resized by a jeweler to accommodate finger size changes, then the ring fits comfortably, but imperfections are introduced into the metal and it requires scheduling time
Solution Approach 1:
The ring incorporates a movable sizing mechanism with an adjustable member that can dynamically change the ring's interior diameter. The member includes a head portion that interfaces with the ring body and a tail portion that extends through an opening, allowing the ring size to be adjusted without removing or melting the metal, thus maintaining metal integrity while adapting to finger size changes.
Solution Approach 2:
The ring is divided into distinct functional segments: a fixed ring body and a movable adjustable member. The adjustable member can be inserted through an opening in the ring body and repositioned to change the effective ring size. This segmentation allows the ring to be resized multiple times without damaging the metal structure.
2Device complexity
If a continuous solid surface movable member is used in the ring interior, then the ring structure is simplified, but adequate light cannot reach the gemstones through multiple surfaces
Solution Approach 1:
The adjustable member is designed with differentiated local qualities: the head portion is solid for structural integrity and sizing adjustment, while the tail portion includes openings or translucent sections that allow light to pass through. This local differentiation enables the member to fulfill both structural and optical functions simultaneously.
Solution Approach 2:
The adjustable member incorporates openings or porous structures in portions of the member that allow light transmission. These openings are strategically positioned to permit adequate light reach to gemstones on the ring exterior surfaces while maintaining the member's structural functionality for 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
Enables automatic adjustment of ring size to accommodate changing finger diameters without compromising gemstone brilliance and reduces the risk of introducing imperfections, providing a practical and comfortable solution for daily wear.
Implementation Method 1
a biasing member seated between the radially outer facing surface thereof and the outer ring
Data Source
Figure 1
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Figure 3~5
AI summary
A jewelry ring having an outer ring fixedly spaced radially apart from an inner ring by a connecting member where the outer ring defines a plurality of open mountings and the inner ring defines a first plurality of openings, which are aligned with one another. At least two of the plurality of openings in the inner ring are interconnected by a slot to collectively define a receptacle in which a size adjusting device is seated and is connected thereto by a slot and pin mechanism enabling the size adjusting device to translate radially between a smallest interior diameter position and a largest interior diameter position. The size adjusting device has an arcuate insert defining a second plurality of openings aligned one each with one of the plurality of open mountings of the outer ring and has a biasing member seated between the arcuate insert and the outer ring.