Hinged Earring with Self-Locking Pin Mechanism

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Solution Overview

Problem

Existing ear jewelry designs, particularly those that use pins for attachment, often lack aesthetic appeal and can be cumbersome to handle, with issues related to proper fixation maintenance and potential loss of parts.

Innovation Solution

A configured earring system featuring a first and second half of a ring connected by a hinge, with a pin and reception openings in a curved lamella of the second half of the ring, providing a secure and easy-to-use fixing system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a pin and receiving opening fastening system is used, then the earring is secure and easy to handle, but the risk of accidental loss increases if the fastening is not properly maintained

Engineering Contradiction:
Improveease of handlingVSAvoidfastening maintenance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The earring fastening system is designed to be self-maintaining through the interaction between the pin with transverse recesses and the receiving opening with a projection. The projection automatically engages with the transverse recesses when the earring is properly assembled, creating a self-locking mechanism that maintains the fastening without requiring user intervention or additional maintenance actions.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The design incorporates preventive measures by providing multiple transverse recesses in the pin and a corresponding projection in the receiving opening that creates a locking engagement before any potential loss can occur. This beforehand engagement ensures the fastening is secured in advance, preventing accidental loss rather than reacting to it.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

2Difficulty of detecting and measuring

If the fastening mechanism is made visible, then it can be easily located, but the aesthetic appeal of the earring is reduced

Engineering Contradiction:
Improvefastening locationVSAvoidaesthetic appeal
Core Design Contradiction:
Difficulty of detecting and measuringVSShape

Solution Approach 1:

The fastening mechanism components (pin and receiving opening) are extracted as separate, discrete elements that can be positioned independently from the main decorative body of the earring. This allows the fastening to be located at the back or in less visible areas, keeping the aesthetic design of the visible portion intact while maintaining easy location and operation of the fastening components.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentEP4552524A1Earring
Publication Date: 2025.05.14 DAÏBA
  • EP4552524A1 patent drawingFigure 1
  • EP4552524A1 patent drawingFigure 2~3
  • EP4552524A1 patent drawingFigure 4

AI summary

The invention relates to an earring comprising a first half-ring (21) and a second half-ring (22) of substantially the same size, connected by means of a hinge (24) at one end and having fastening means (25, 26, 27a, 27b) at the other end of the first half-ring (21) and the second half-ring (22), and opposed to each other with respect to the direction of rotation about said hinge (24), said engaging fastening means comprising a pin (25) mounted in the first half-ring (21); the pin (25) having at least one transverse recess (28) at one end. The second half-ring (22) comprises: - a first receiving opening (27a) in a curved strip (26); - a second receiving opening (27b) inside the second half-ring.