Vehicle Sun Screen with Rounded Safety Bead

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Solution Overview

Problem

Conventional sun screens in motor vehicles either limit the driver's or passenger's vision due to non-transparent shading bodies or pose a risk of injury from sharp edges, compromising safety.

Innovation Solution

A sun screen with a transparent or lucent sunlight shading body and a safety bead at the edge, where the safety bead is thicker and rounded to reduce injury risk, and can be made from elastic materials for additional cushioning, ensuring a safe and unobstructed view.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a non-transparent sunlight shading body is used, then the blinding effect is reduced, but the range of vision is limited

Engineering Contradiction:
Improveblinding effectVSAvoidrange of vision
Core Design Contradiction:
Object-affected harmful factorsVSLoss of information

Solution Approach 1:

The patent applies local quality by making the sunlight shading body translucent rather than completely opaque, allowing light to pass through at a reduced intensity. This local modification of transparency in the shading body enables simultaneous achievement of glare reduction and maintained visibility, resolving the contradiction between protecting against blinding and preserving range of vision

Inventive Principle:
Principle #3Local quality

2Loss of information

If a translucent sunlight shading body is used, then the range of vision is maintained, but the risk of injury from sharp edges increases

Engineering Contradiction:
Improverange of visionVSAvoidrisk of injury
Core Design Contradiction:
Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The patent applies spheroidality by rounding the edges of the sunlight shading body, replacing sharp corners and edges with curved surfaces. This geometric modification eliminates the harmful sharp edges that could cause injury while maintaining the translucent property that ensures good range of vision, thus resolving the contradiction between visibility and safety

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Ease of manufacture

If the edge of the sunlight shading body is made thin, then the manufacturing is easier, but the risk of injury to persons increases

Engineering Contradiction:
Improvemanufacturing easeVSAvoidrisk of injury
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent applies spheroidality by rounding the edges of the sunlight shading body, replacing sharp corners and edges with curved surfaces. This geometric modification eliminates the harmful sharp edges that could cause injury while maintaining the translucent property that ensures good range of vision, thus resolving the contradiction between visibility and safety

Inventive Principle:
Principle #14Spheroidality (Curvature)

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 safety bead significantly reduces the risk of injury and maintains an unobstructed view by being thicker and rounded, providing a larger surface area for impact and cushioning, thus enhancing safety without increasing production costs.

Implementation Method 1

the safety bead embodied at the edge of the transparent sunlight shading body considerably reduces the risk of injury to persons

Methodology Applied
Scientific EffectCushioning: Damping

Data Source

PatentUS8226148B2Sun screen for a motor vehicle
Publication Date: 2012.07.24 GM GLOBAL TECHNOLOGY OPERATIONS LLC
  • US8226148B2 patent drawing
  • US8226148B2 patent drawing

AI summary

In the case of a sun screen, in particular for a motor vehicle, the sunscreen includes, but is not limited to a sunlight shading body, which at least partly has a transparent or lucent material and a fixing body for fixing the sun screen, in particular to the motor vehicle, e.g., to a roof area of an auto body of the motor vehicle, the range of vision of the driver or of the front-seat passenger is substantially not to be limited by the sun screen on the one hand and the edge of the sunlight shading body is not to represent a risk of injury to the driver and front-seat passenger, on the other hand.