Interchangeable Bridal Ring Heads and Shank Threaded Connection
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Solution Overview
Problem
The retail fine jewelry industry faces high inventory costs and slow turnover due to the complexity of stocking various bridal set combinations, which require multiple heads, shanks, and bands, making it difficult for jewelers to offer a wide range of styles without excessive inventory.
Innovation Solution
A screw mechanism allows for interchangeable heads and shanks with a secure yet easily reversible threaded connection, enabling customers to customize bridal sets in-person and reducing inventory needs by allowing one set of each style to be stocked, with the option to permanently fix combinations via welding or soldering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If jewelers stock complete bridal sets with multiple combinations of heads, shanks and bands, then variety of selection is improved, but inventory cost and complexity increase significantly
Solution Approach 1:
The bridal set is divided into separate interchangeable components: heads, shanks, and bands. Each component can be independently selected and combined, allowing customers to create custom combinations. The head features a post with external threads that engage with internal threads in the shank's through hole, enabling modular assembly. This segmentation reduces inventory complexity while maintaining variety.
Solution Approach 2:
A single shank design with a standardized through hole can accommodate multiple different head styles through the threaded connection system. Similarly, bands can be paired with various head-shank combinations. This universal interface allows one shank to serve multiple functions with different heads, reducing the total number of unique set combinations needed in inventory.
2Adaptability or versatility
If jewelers stock many complete bridal set combinations, then customer choice is improved, but inventory turnover decreases and costs increase
Solution Approach 1:
The bridal set configuration is made dynamic and adjustable rather than fixed. Customers can try different head-shank-band combinations in person and adjust their selection before finalizing the purchase. The threaded connection allows easy assembly and disassembly for trying on different combinations, enabling informed decision-making and reducing returns or exchanges.
Solution Approach 2:
Customers are empowered to assemble and disassemble their own bridal set combinations using the threaded connection system. This self-service capability allows them to explore different styles and make personalized selections without requiring pre-assembled inventory of every possible combination, improving inventory efficiency.
3Reliability
If a secure connection method is used to attach heads to shanks, then reliability is improved, but ease of customization decreases
Solution Approach 1:
The traditional permanent mechanical attachment methods (welding, soldering) are replaced with a reversible threaded mechanical connection system. The external threads on the head post engage with internal threads in the shank through hole, providing a secure yet reversible connection that maintains reliability while enabling easy customization and assembly/disassembly.
Data Source
AI summary
A ring assembly including a shank having a band defining a head mounting area with a through hole defined through the band in the head mounting area. The through hole defines internal threads; and a head including a mount with a post extending therethrough, the post including an area of external threads configured to engage the internal threads to releasably secure the head to the shank. Methods for forming and demonstrating ring assemblies are also disclosed.