Removable Sunglass Temples With Cam Tension for Ear Comfort

Solution Overview

Problem

Conventional sunglasses often cause discomfort due to long frame temples that pinch the wearer's ears, especially for those with wide pupillary distance, and lack a strong enough tension mechanism to stay on the temples without extending over the ears.

Innovation Solution

Incorporation of a robust tension device, such as cams or springs, allowing for short frame temples that rest on the wearer's temples and the option to attach removable temple extensions for longer frames, with connectors that provide secure attachment and easy detachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If long frame temples are used to ensure sunglasses stay on the face, then the sunglasses can rest on the ears for stability, but the frame temples pinch the wearer's ears causing discomfort

Engineering Contradiction:

Improvestability of sunglasses on faceVSAvoidear pinching discomfort

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The temple is divided into two separate components: a short fixed temple portion attached to the frame, and a removable extension portion that can be attached or detached. This segmentation allows the temple to provide sufficient length for stability when needed, while avoiding excessive length that would cause ear pinching discomfort.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The temple length is made dynamically adjustable through the removable extension mechanism. Users can change the temple length based on their needs - using the short temple for comfort or adding the extension for stability, making the sunglasses adaptable to different wearing conditions.

Inventive Principle:

Principle #15Dynamics

2Object-affected harmful factors

If short frame temples are used to avoid ear pinching, then comfort is improved, but the sunglasses lack sufficient tension mechanism to stay on the temples without extending over the ears

Engineering Contradiction:

Improveear pinching discomfortVSAvoidstability of sunglasses on face

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The temple is divided into two separate components: a short fixed temple portion attached to the frame, and a removable extension portion that can be attached or detached. This segmentation allows the temple to provide sufficient length for stability when needed, while avoiding excessive length that would cause ear pinching discomfort.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The temple length is made dynamically adjustable through the removable extension mechanism. Users can change the temple length based on their needs - using the short temple for comfort or adding the extension for stability, making the sunglasses adaptable to different wearing conditions.

Inventive Principle:

Principle #15Dynamics

3Ease of manufacture

If fixed length frame temples are used, then manufacturing is simplified, but the sunglasses cannot accommodate different wearer preferences for temple length

Engineering Contradiction:

Improveframe temple productionVSAvoidtemple length accommodation

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The temple is divided into two separate components: a short fixed temple portion attached to the frame, and a removable extension portion that can be attached or detached. This segmentation allows the temple to provide sufficient length for stability when needed, while avoiding excessive length that would cause ear pinching discomfort.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The removable extension mechanism serves multiple functions: it can be attached to provide longer temple length for stability, detached to provide shorter temple length for comfort, and the connector design allows for easy attachment and removal. This multi-functionality accommodates different wearer preferences while maintaining a relatively simple manufacturing process for the base frame.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

Provides comfortable wear by eliminating ear pinching and allowing adjustable temple lengths, enhancing security and versatility in frame fit.

Implementation Method 1

The tension device comprises a spring and a cam

Methodology Applied

Scientific EffectSpring: Spring

Implementation Method 2

The tension device comprises a spring and a cam

Methodology Applied

Scientific EffectCam: Cam

Data Source

PatentUS20250377555A1Sunglasses With Removeable Temples

Publication Date: 2025.12.11 SAMO ZUHAIR

AI summary

Eyewear is provided that includes a frame held on the head by removable temple portions, some of which do not reach or otherwise go over the ear. The eyewear may be held on the temple of the wearer's head by two tension devices, one on each side, which are preferably cams, which in some embodiments also are part of connectors used to removeably attach the temple portions of the eyewear onto the frame. In addition, temple extensions are provided that are attached to the eyewear temple portions of frames. The connectors in certain embodiments comprise a push button spring mechanism for attaching and removing the temple portions of the frames.