Spectacle Nose Rest Pivot Mechanism for Shape Adaptation

Solution Overview

Problem

Existing nose supports for spectacles lack effective adaptation to individual nose shapes due to limited mobility and ventilation, as they rely solely on the bending behavior of the nose rest and do not allow for sufficient adjustment or ventilation.

Innovation Solution

A nose support design featuring a hairpin-bent wire part with a round eye at the end, allowing the nose rest to pivot around both the eye axis and a transverse axis, enabling automatic adaptation to the nose shape while maintaining a simple plug connection and providing ventilation through an annular opening.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the nose rest is rigidly fixed to the retainer using a formfitting plug connection, then the connection between retainer and nose rest is secure, but the nose rest cannot adapt to individual nose shapes

Engineering Contradiction:

Improveconnection securityVSAvoidadaptation to nose shape

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The nose rest is designed with pivotability around the eye axis, transforming the rigid connection into a dynamic one. The retainer and nose rest remain firmly connected through the plug connection, while the nose rest can rotate around the eye axis to adapt to different nose shapes, achieving both secure connection and adaptability

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The connection system is segmented into two functional parts: the plug connection provides secure retention, while the pivotable nose rest provides adaptation capability. This segmentation allows each part to fulfill its specific function without compromising the other

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If the nose rest is made entirely of soft elastomer, then it can adapt to nose shape through bending, but it lacks structural stability and secure retention

Engineering Contradiction:

Improveadaptation to nose shapeVSAvoidstructural stability

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The nose support combines wire material for the retainer (providing stability) with soft elastomer for the nose rest (providing adaptability). This composite structure allows the rigid wire framework to maintain structural integrity while the flexible elastomer nose rest adapts to the nose shape

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The nose rest is designed with pivotability around the eye axis, transforming the rigid connection into a dynamic one. The retainer and nose rest remain firmly connected through the plug connection, while the nose rest can rotate around the eye axis to adapt to different nose shapes, achieving both secure connection and adaptability

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If the pocket of the nose rest is expanded to allow rotation around the eye axis, then the nose rest can adapt to nose shape, but the plug connection may be impaired

Engineering Contradiction:

Improverotation around eye axisVSAvoidplug connection integrity

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The nose rest is designed with pivotability around the eye axis, transforming the rigid connection into a dynamic one. The retainer and nose rest remain firmly connected through the plug connection, while the nose rest can rotate around the eye axis to adapt to different nose shapes, achieving both secure connection and adaptability

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The connection system is segmented into two functional parts: the plug connection provides secure retention, while the pivotable nose rest provides adaptation capability. This segmentation allows each part to fulfill its specific function without compromising the other

Inventive Principle:

Principle #1Segmentation

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

This design enhances the fit and comfort of the nose support by allowing limited pivotability and automatic adaptation to the nose shape, ensuring secure retention without impairing ease of assembly or production, and improving ventilation for better wearing comfort.

Implementation Method 1

the pocket of the nose rest expands outward on one hand away from the undercut in the plane of the hairpin-shaped bent leg of the wire part

Methodology Applied

Scientific EffectElastic expansion: Elasticity

Data Source

PatentUS7651218B2Nose support for a pair of spectacles

Publication Date: 2010.01.26 SILHOUETTE INT SCHMIED

AI summary

A nose support for a pair of spectacles having a nose rest (2) and having a retainer (1), comprising a wire part (3), for the nose rest (2) is described, which has an undercut pocket (8) for the plug reception of an eye bent out of one end of the wire part (3). To provide advantageous design conditions, it is suggested that the end of the wire part (3) forming an eye be bent in a hairpin shape, the web (4) connecting the two legs (5, 6) of the hairpin-shaped end section forming a round eye (7) expanded in relation to the adjoining legs (5, 6), and the pocket (8) of the nose rest (2) expanding outward on one hand away from the undercut in the plane of the hairpin-shaped bent legs (5, 6) of the wire part (3) and on the other hand transversely to this plane over the entire pocket depth.