Adjustable Ring Locking Structure for Secure Size Inserts
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Solution Overview
Problem
Existing size-adjustable rings face issues with poor attachment performance and difficulty in replacing or removing the size adjustment unit, leading to potential detachment during use.
Innovation Solution
The adjustment ring features a ring body with locking portions and an adjustment member with engaging portions that securely attach to the ring body, allowing for size adjustment through interchangeable spacers with elastically deformable pins and edge covers that enhance retention and prevent misalignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a size adjustment unit with a U-shaped metal leaf spring and metal attachment portion is fitted into a recess of the ring body, then size adjustment is enabled, but attachment performance deteriorates and the adjustment unit may detach during use
Solution Approach 1:
The adjustment member is divided into multiple engaging portions that can independently engage with different locking portions on the ring. This segmentation allows the adjustment member to be securely attached at multiple points, preventing detachment while enabling size adjustment through selection of different engagement combinations.
Solution Approach 2:
The engaging portions of the adjustment member are designed to fit into locking portions formed on the inner circumferential surface of the ring, creating a nested attachment structure. This nesting mechanism ensures secure attachment while allowing the adjustment member to be removed and replaced for size adjustment.
2Reliability
If the size adjustment unit is fixed in the recess of the ring body, then attachment performance improves, but replacement and removal of the adjustment unit becomes difficult
Solution Approach 1:
The attachment mechanism transitions from a fixed state to a dynamic state where the adjustment member can be easily attached and detached. The engaging portions are designed to snap into the locking portions during attachment, providing secure fixation, but can be easily released by applying slight force, enabling simple replacement for size adjustment.
Solution Approach 2:
The adjustment member incorporates self-locking engaging portions that automatically secure themselves when attached to the ring's locking portions. This self-service mechanism ensures reliable attachment without requiring additional fastening steps, while still allowing easy removal by overcoming the simple engagement force.
3Manufacturing precision
If multiple locking portions are formed at different positions in the circumferential direction of the inner circumferential surface, then size adjustment precision improves, but device complexity increases
Solution Approach 1:
The ring's inner circumferential surface is segmented into multiple discrete locking portions at different circumferential positions. Each locking portion corresponds to a specific size adjustment position. The adjustment member is similarly segmented into multiple engaging portions that can selectively engage with these locking portions, providing precise size adjustment without complex mechanisms.
Solution Approach 2:
The locking portions and engaging portions are designed with universal compatibility, where any engaging portion can engage with any locking portion to achieve different size adjustments. This multi-functional design allows a single adjustment member to provide multiple size options without requiring different components for each size, thereby reducing overall device complexity.
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 solution provides improved attachment performance, prevents spacers from easily coming off, ensures comfortable wear, and allows for easy size adjustment while maintaining aesthetic continuity and functional integrity.
Implementation Method 1
elastically deformable pins
Data Source
AI summary
An adjustment ring according to an embodiment includes; a ring including a plurality of locking portions formed at different positions in a circumferential direction of an inner circumferential surface; and an adjustment member that is attached to the ring and is formed with a plurality of engaging portions, the engaging portions being configured to engage with, in a one-to-one manner, at least two of the locking portions of the ring.