Concave Earring Back Alignment Mechanism
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Solution Overview
Problem
Existing earring backs for pierced ear earrings are difficult to attach securely due to the inability to visually align the post with the receiving hole, leading to cumbersome attachment processes and potential earring detachment.
Innovation Solution
The earring back design features a first and second receiver with concave, conical surfaces or flexible projections that guide the post into secure openings, allowing for easy attachment by touch and enhanced securement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional flat-faced back is used, then the back can be positioned behind the ear, but the receiving hole cannot be visually aligned with the post, making attachment difficult
Solution Approach 1:
The back incorporates a concave receiver surface with a recessed receiving hole, replacing the conventional flat face. This curved, recessed design creates a visual cavity that makes the receiving hole visible and alignable with the post from the front, enabling users to easily observe and properly align the components during attachment without requiring visual access to the rear side.
2Reliability
If the post and receiving hole are made small for secure fit, then the earring is securely retained, but the attachment process becomes more difficult
Solution Approach 1:
The concave receiver surface with its recessed receiving hole is pre-configured to guide the post into proper alignment before the actual attachment. The curved surface acts as a preliminary guide, allowing the user to visually align and insert the post correctly, thereby facilitating the attachment process while maintaining a secure fit through the recessed design.
3Ease of operation
If fingers extend into the small space to position the earring, then the earring can be attached, but the view of the back is obstructed
Solution Approach 1:
The concave receiver surface creates a recessed cavity that makes the receiving hole visible from the front, allowing users to observe the alignment process without needing to extend fingers deep into the space. The curved design provides a visual window that reduces obstruction while maintaining proper positioning capability.
Data Source
AI summary
An earring back for a pierced ear earring includes a first receiver having a first recessed, concave surface which has a first opening defined through a center, most recessed position thereof, which opening is configured to securely receive a post of a pierced-ear earring therein, and a second receiver with a second recessed, concave surface having a second opening defined through a center, most recessed position thereof which is configured to securely receive the post of the pierced-ear earring therein after the post extends through the opening of the first receiver. The second receiver is fixed in spaced relation to the first receiver such that the first and second openings are coaxially aligned.