Angled Vehicle Rear Window Assembly Reducing Glare

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Solution Overview

Problem

The vertical rear window structure in pick-up truck vehicles causes reflection and glare inside the passenger compartment due to the vertical rear pillar, reducing visibility on devices such as display screens.

Innovation Solution

A vehicle window assembly comprising a first and second transparent member, with the second member angled relative to the first member and supported by a mounting structure, positioned inboard and extending further into the passenger compartment to reduce reflections and glare, and capable of moving to create an access opening for ventilation or access between the cargo bed and passenger compartment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If a vertical rear window structure is used to maximize interior space, then the interior passenger compartment space is increased, but light reflections and glare inside the passenger compartment increase

Engineering Contradiction:

Improveinterior passenger compartment spaceVSAvoidlight reflections and glare

Core Design Contradiction:

Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The rear window is divided into two separate transparent members (first and second transparent members) that can be independently positioned and angled. This segmentation allows each member to be optimized for different functions: the first member maintains the vertical orientation for space maximization, while the second member can be angled to reduce reflections and glare.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The solution introduces an angular dimension to the window assembly by positioning the second transparent member at an angle relative to the first transparent member. This angular arrangement changes the orientation of the window surface in relation to incoming light, thereby reducing reflections and glare while maintaining the vertical pillar structure for interior space.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Device complexity

If a single transparent window member is used to simplify the structure, then the device complexity is reduced, but the ability to reduce reflections and glare is lost

Engineering Contradiction:

Improvewindow assembly structureVSAvoidlight reflections and glare

Core Design Contradiction:

Device complexityVSObject-affected harmful factors

Solution Approach 1:

The window assembly is segmented into two transparent members with different orientations. The first transparent member is positioned vertically while the second transparent member is angled relative to the first, allowing each to perform its specific optical function independently.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different parts of the window assembly have different orientations optimized for different purposes. The first transparent member maintains vertical orientation for structural integration and space maximization, while the second transparent member is angled specifically to reduce reflections and glare in the passenger compartment.

Inventive Principle:

Principle #3Local quality

3Object-affected harmful factors

If the second transparent member is positioned at an angle to reduce glare, then visibility on interior devices is improved, but the structural complexity of the mounting structure increases

Engineering Contradiction:

Improvevisibility on display screensVSAvoidmounting structure

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The mounting structure is designed to independently support each transparent member at its required angle. This segmentation of support functions allows the mounting structure to accommodate the angular positioning of the second transparent member without requiring complete redesign of the entire support system.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mounting structure incorporates angular positioning capability in addition to the vertical support. By adding this angular dimension to the mounting capability, the structure can support the second transparent member at the optimal angle for reducing glare while maintaining integration with the vertical pillar structure.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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 angled second transparent member effectively reduces light reflections and glare on interior devices, enhancing visibility while maintaining the vertical pillar design for maximum interior space, and allows for adjustable ventilation and access between compartments.

Implementation Method 1

the second transparent member is supported by the mounting structure so as to be angled relative to the first transparent member

Methodology Applied

Scientific EffectRefraction: Refraction

Implementation Method 2

causes reflection of lights inside the interior passenger compartment due to a vertical rear window

Methodology Applied

Scientific EffectReflection: Reflection

Data Source

PatentUS9415663B1Vehicle window assembly

Publication Date: 2016.08.16 NISSAN MOTOR CO LTD

AI summary

A vehicle window assembly includes a first transparent member, a second transparent member and a mounting structure. The first transparent member is disposed in an aperture of a vehicle. The second transparent member is disposed in the aperture of the vehicle. The mounting structure supports the first transparent member and the second transparent member, and the second transparent member is supported by the mounting structure so as to be angled relative to the first transparent member.