Elastic Decorative Sleeve for Spectacle Arms

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Solution Overview

Problem

Existing eyeglass arm designs are either costly and complex or prone to loss, as they require locking mechanisms and are limited in decorative positioning options.

Innovation Solution

A decorative sleeve made from elastically deformable material is mounted around the eyeglass frame, allowing rotation and twisting to expose different decorative surfaces without the need for specific locking means, facilitating easy and inexpensive modification of the arm's appearance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If removable decorative elements are used on spectacle branches, then the appearance can be modified, but the decorative elements risk being lost by detaching from the temples

Engineering Contradiction:

Improveappearance modificationVSAvoidretention of decorative elements

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The decorative element is nested inside a retention sleeve that fits around the temple. The sleeve acts as a container that holds the decorative element securely while allowing it to be visible and accessible. This nesting structure prevents the decorative element from detaching while still allowing appearance modification.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The retention sleeve is made of elastic material that can deform flexibly. This flexibility allows the sleeve to stretch and contract, enabling the user to insert and remove decorative elements easily while maintaining a secure fit that prevents loss during normal wear.

Inventive Principle:

Principle #30Flexible shells and thin films

2Adaptability or versatility

If rigid decorative elements are mounted around a fixed part and made movable by pivoting, then the appearance can be modified, but the design becomes complex and costly requiring locking means

Engineering Contradiction:

Improveappearance modificationVSAvoidlocking mechanisms

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The invention replaces complex mechanical locking mechanisms with an elastic retention system. The elastic sleeve uses material elasticity rather than mechanical locks, screws, or clips to secure the decorative element. This substitution dramatically simplifies the design while maintaining secure retention and appearance modification capability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The invention changes the physical parameter of the retention structure from rigid to elastic. By using an elastic sleeve that can deform and recover, the system achieves secure retention without mechanical locking means. The elastic properties allow the sleeve to adapt to the temple dimensions and secure the decorative element through friction and elastic force rather than mechanical interlocking.

Inventive Principle:

Principle #35Parameter changes

3Adaptability or versatility

If rigid decorative elements are used, then they can be mounted around rectilinear portions, but they are limited in positioning options and cannot accommodate curved frame portions

Engineering Contradiction:

Improvepositioning optionsVSAvoidframe geometry compatibility

Core Design Contradiction:

Adaptability or versatilityVSShape

Solution Approach 1:

The retention sleeve is made of elastic material that can deform to accommodate both rectilinear and curved frame portions. This flexibility allows the sleeve to conform to any shape of the temple, enabling decorative elements to be positioned on any portion of the frame regardless of its geometry.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The retention system transitions from a static rigid structure to a dynamic elastic structure that can adapt its shape. The elastic sleeve can stretch, bend, and deform to match the contours of different frame portions, providing versatility in positioning decorative elements on various parts of the spectacle temple.

Inventive Principle:

Principle #15Dynamics

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

The solution provides a simple, cost-effective way to change the appearance of eyeglass arms by rotating or twisting the sleeve, ensuring secure positioning and reducing the risk of loss, while allowing multiple decorative configurations.

Implementation Method 1

sleeve made at least partially from an elastically deformable material... adapted to rotate and/or twist around the frame by elastic deformation

Methodology Applied

Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP2457120B1Arm for spectacles and associated spectacles

Publication Date: 2020.01.08 KILLINE OPTICAL

Figure 1~3c
Figure 4a~4b
Figure 5~7

AI summary

The invention relates to an arm (2) for spectacles (1) including a frame (6), characterized in that it comprises at least one decorative sleeve (7) at least partially made of an elastically deformable material, provided with at least one decorative surface (70a, 70b) and mounted around the frame (6) of the arm (2), said sleeve (7) being designed to turn and/or twist around the frame (6) by means of elastic deformation in order to modify the appearance of said arm (2). The invention also relates to the spectacles (1) provided with such an arm (2). The present invention can be used in the field of spectacles.