Electronic Eyeglasses Hinge With Concentric Cable Routing

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Solution Overview

Problem

Existing electronic eyeglasses face issues with power supply/data cables that are subjected to bending, torsion, and jamming at the hinge, leading to potential damage due to the cable's passage from the temple to the front, which is not optimally addressed by current solutions.

Innovation Solution

A hinge design with concentric rings and a retention pin that allows the power supply/data cable to pass through the hinge bodies, ensuring minimal bends and concealment within the eyeglasses structure, preventing visible external exposure and damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the cable passes through the hinge from temple to front, then the electronic device can be powered and data can be transmitted, but the cable is subjected to bending, torsion, and jamming causing damage

Engineering Contradiction:
Improvecable integrityVSAvoidbending and torsion of cable
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The hinge is divided into multiple concentric rings (first ring, second ring, third ring, fourth ring) that are mutually spaced and can rotate relative to each other. This segmentation allows the cable to pass through the central space without being bent or twisted by the hinge movement, as each ring can move independently while maintaining the central passage open.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from a traditional single-plane hinge to a three-dimensional concentric ring structure. The cable passes through the central axial space of the concentric rings, utilizing the third dimension (axial space) to route the cable away from the plane of hinge rotation, thereby avoiding bending and torsion forces.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Shape

If the cable is concealed within the hinge body, then the aesthetic appearance is improved and cable damage is prevented, but the cable passage design becomes more complex

Engineering Contradiction:
Improveconcealment of cableVSAvoidhinge structure
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The concentric ring structure serves multiple functions simultaneously: it provides the hinge rotation mechanism, creates the cable passage through its central space, and conceals the cable within the hinge body. The retention pin not only connects the rings but also helps guide and protect the cable. This multi-functionality reduces the need for additional separate components for cable management.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If the hinge uses concentric rings with retention pin, then cable passage is optimized and hinge reliability is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvehinge performanceVSAvoidhinge assembly
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The retention pin is designed to be inserted first to connect the concentric rings together, establishing the structural framework before the cable is routed through the assembly. This preliminary action ensures proper alignment and structural integrity, making the subsequent cable installation simpler and more reliable.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12498587B2Hinge for electronic eyeglasses
Publication Date: 2025.12.16 LUXOTTICA SRL
  • US12498587B2 patent drawing
  • US12498587B2 patent drawing
  • US12498587B2 patent drawing

AI summary

A hinge for electronic eyeglasses includes a first hinge body adapted to be connected to a temple of a pair of eyeglasses, a second hinge body adapted to be connected to a front of the eyeglasses, its particularity residing in that it has a power supply/data cable adapted to be inserted within the temple, in order to pass through the first hinge body and the second hinge body and be redirected toward the front. The first hinge body is constituted by mutually spaced rings, which are adapted to intersect additional rings of the second hinge body, in order to form a set of concentric rings, at least some of the concentric rings being adapted to be mutually connected by a retention pin.