Eyeglass Hinge Central Part With Cable Guide and Snap Positioning

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Solution Overview

Problem

Conventional eyeglass hinges are unsuitable for integrating electronic components and cables, as they are difficult to retrofit and do not provide adequate protection or ease of assembly/disassembly, while also lacking precise temple positioning and snap-effect functionality.

Innovation Solution

A central part for a spectacle hinge with a first and second pivot point, a cable guide recess, and detent elements that allow for easy cable routing and assembly, protecting the cable and enabling precise temple positioning with a snap-effect mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If conventional eyeglass hinges are used, then the structure is simple, but cable routing and protection are inadequate

Engineering Contradiction:

Improvecable routingVSAvoidhinge structure

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The hinge is divided into separate functional components: a frame part, a temple part, and a central part that houses the cable guide recess. This segmentation allows the cable routing function to be independently designed and integrated without redesigning the entire hinge structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The cable guide recess is integrated within the central part of the hinge, nesting the cable protection function inside the existing hinge structure. The cable runs through the recess without adding external protective elements, maintaining compactness while providing protection.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Adaptability or versatility

If conventional hinges are retrofitted for cables, then electronic integration is possible, but assembly and disassembly become difficult

Engineering Contradiction:

Improveelectronic integrationVSAvoidassembly and disassembly

Core Design Contradiction:

Adaptability or versatilityVSEase of repair

Solution Approach 1:

The cable guide recess is pre-formed in the central part during manufacturing, with an open side that faces outward. This preliminary preparation allows cables to be easily inserted and routed without requiring complex assembly operations or disassembly for maintenance.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The cable guide recess is designed as a separate functional element within the central part, allowing the cable to be extracted or accessed independently from the hinge mechanism. The open side enables cable removal without dismantling the hinge connection between frame and temple.

Inventive Principle:

Principle #2Taking out (Extraction)

3Use of energy by moving object

If cables are routed over conventional hinges, then power and data transmission is enabled, but cable protection from external influences is insufficient

Engineering Contradiction:

Improvepower transmissionVSAvoidcable exposure

Core Design Contradiction:

Use of energy by moving objectVSObject-affected harmful factors

Solution Approach 1:

The cable is nested within the cable guide recess of the central part, which is integrated into the hinge structure. This nesting provides protection against external influences such as bending, friction, and environmental factors while maintaining the cable's electrical and optical transmission functions.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The cable guide recess provides a protective enclosure for the cable, acting as a flexible channel that guides and protects the cable from mechanical stress and external damage during hinge movement between resting and wearing positions.

Inventive Principle:

Principle #30Flexible shells and thin films

4Manufacturing precision

If precise temple positioning is required, then snap effect mechanism is added, but device complexity increases

Engineering Contradiction:

Improvetemple positioningVSAvoidhinge mechanism

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The snap effect mechanism is merged into the central part of the hinge, combining the positioning function with the existing hinge structure. Detent elements and corresponding recesses are integrated into the central part, providing precise temple positioning without requiring separate complex mechanisms.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP4200662B1Central part for an eyeglass hinge, and eyeglasses having a central part of this type

Publication Date: 2025.12.17 OBE GMBH & CO KG

Figure 1a~1b
Figure 2
Figure 3a~3b

AI summary

The invention relates to a central part (1) for an eyeglass hinge (3), comprising: - a first articulation region (7), which is designed to connect, with articulation about a first articulation axis (A1), the central part (1) to a frame (11) of eyeglasses (5); - a second articulation region (9), which is designed to connect, with articulation about a second articulation axis (A2), the central part (1) to a temple (13) of the eyeglasses (5); and - a cable guide opening (15), which extends through the central part (1) perpendicularly to the articulation axes (A1, A2) and is designed for the feeding of a cable (17) from the temple (13) to the frame (11) through the central part (1), the cable guide opening (15) being open in the direction of the articulation axes (A1, A2) at least on one side.