Roof Rack Fairing With Protected Integrated Lighting

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Solution Overview

Problem

Existing roof racks with integrated lighting units face challenges in protecting these components from environmental influences like dust and water, and often require complex fastening methods and unsightly integration, which affects both functionality and aesthetics.

Innovation Solution

A roof rack design featuring a fairing with light passage openings for the lighting device, allowing for simplified and visually appealing integration, protection against environmental factors, and secure fastening, using elongate openings and optional transparent covers or seals to prevent water and dirt ingress.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the lighting device is integrated into the roof rack without a fairing, then the fastening is simple, but the lighting device is exposed to environmental influences such as dust and spray

Engineering Contradiction:
Improveprotection against environmental influencesVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The fairing is designed as a separate component that can be attached to the rack part, dividing the protection function from the main structural elements. This segmentation allows the lighting device to be protected without integrating the fairing permanently into the rack structure, thus reducing overall complexity while maintaining protection.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fairing acts as an intermediary element between the lighting device and the environmental influences. It provides a protective barrier that shields the lighting device from dust and spray while allowing light to pass through via the light passage openings, thus protecting the device without requiring direct integration into the rack structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the lighting device is covered completely for protection, then environmental protection is improved, but the visual appearance and light output are compromised

Engineering Contradiction:
Improveprotection against environmental influencesVSAvoidlight output visibility
Core Design Contradiction:
ReliabilityVSIllumination intensity

Solution Approach 1:

The fairing is designed with specific local qualities - it is opaque for protection but includes transparent or translucent light passage openings where light needs to emerge. This local differentiation allows the fairing to provide comprehensive protection while maintaining light output and visual appearance in critical areas.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The light passage openings can be made of transparent, translucent, or colored materials that allow light to pass through while providing protection. The material properties can be selected to match the desired visual appearance and light transmission requirements, thus maintaining illumination intensity while providing environmental protection.

Inventive Principle:
Principle #32Color changes

3Ease of manufacture

If a single large opening is used for the lighting device, then the structure is simple, but the visual appearance and light distribution are less appealing

Engineering Contradiction:
Improvestructural simplicityVSAvoidvisual appearance
Core Design Contradiction:
Ease of manufactureVSShape

Solution Approach 1:

The single large opening is divided into multiple smaller light passage openings arranged in a specific pattern. This segmentation improves visual appearance by creating a more appealing design while still allowing sufficient light output. The multiple openings can be arranged to match the light distribution requirements of the lighting device.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The light passage openings are arranged in a two-dimensional pattern on the fairing rather than a single large opening. This dimensional arrangement creates a more visually appealing design while maintaining structural simplicity. The pattern can be optimized for both aesthetic and functional light distribution requirements.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

4Reliability

If the lighting device is secured with complex fastening methods, then the protection and stability are improved, but the installation process becomes time-consuming

Engineering Contradiction:
Improvefastening stabilityVSAvoidinstallation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The fairing is designed with pre-integrated fastening elements such as clips, snaps, or adhesive areas that are prepared in advance. This preliminary preparation of fastening mechanisms allows for quick and easy attachment of the fairing to the rack part, reducing installation time while maintaining secure and stable fastening.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Complex mechanical fastening systems are replaced with simpler attachment methods such as adhesive bonds, snap-fit connections, or clip-based mounting. These substituted fastening methods provide sufficient stability while significantly reducing the time and complexity of the installation process.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12077097B2Roof rack
Publication Date: 2024.09.03 DR ING H C F PORSCHE AG
  • US12077097B2 patent drawing
  • US12077097B2 patent drawing

AI summary

A roof rack has at least one lighting device, which is arranged in a protected manner on a rack part. In order to improve the roof rack functionally and/or in respect of its appearance, the rack part includes a fairing having at least two light passage openings, which are assigned to the lighting device.