Hub Cap Air Guide Assembly for Protected Rotational Alignment

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Solution Overview

Problem

Existing tire pressure regulation systems in vehicles are prone to damage during transportation due to exposed air guiding systems, which can lead to installation issues and obscured information, and lack a predetermined rotational position.

Innovation Solution

A hub cap system with a central aperture and integrated air guiding system that allows for reversible connection, positive fixation, and rotational alignment, protecting the air guiding system from damage and ensuring proper installation positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the air guiding system is attached to the hub cap before installation, then the tire pressure regulation system is functional, but the air guiding system is vulnerable to damage during transportation

Engineering Contradiction:

Improvefunctional readinessVSAvoiddamage during transportation

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The hub cap system is divided into separate components: the hub cap itself and the air guiding system. The air guiding system is not permanently attached but can be reversibly connected, allowing it to be protected during transportation and easily installed when needed.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The hub cap is prepared in advance with a central aperture and fastening means, creating the infrastructure for air guiding system attachment before the actual connection occurs. This preliminary preparation enables quick and proper installation when the air guiding system is ready to be attached.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the air guiding system is attached to the hub cap, then tire pressure regulation is enabled, but installation work increases and waste parts are generated

Engineering Contradiction:

Improvetire pressure regulationVSAvoidinstallation work and waste

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The protective function is extracted as a separate component (protective cap) that can be removed and reused. This eliminates the need for disposable waste parts and reduces installation complexity by providing a dedicated protection mechanism rather than requiring separate protective measures.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The protective cap serves dual purposes: protecting the air guiding system during transportation and acting as a temporary placeholder during installation. This self-service approach eliminates the need for additional protective materials and simplifies the installation process.

Inventive Principle:

Principle #25Self-service

3Reliability

If the air guiding system is attached to the hub cap, then tire pressure regulation is enabled, but the rotational position is not predetermined causing twisted installation

Engineering Contradiction:

Improvetire pressure regulationVSAvoidrotational position alignment

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The hub cap and air guiding system incorporate asymmetric features such as non-circular cross-sections or specific orientation marks that prevent incorrect rotational positioning. This ensures the air guiding system is installed in the correct orientation, preventing twisted installation and ensuring proper alignment with the vehicle's air lines.

Inventive Principle:

Principle #4Asymmetry

Data Source

PatentUS12496860B2Hub cap system for a vehicle

Publication Date: 2025.12.16 SAF HOLLAND GMBH

AI summary

The hub cap system for a vehicle, in particular a commercial vehicle, includes a hub cap configured to rotate about an axial direction, wherein the hub cap has a central aperture which extends in the axial direction, and an air guiding system including a primary connection and a secondary connection, wherein the air guiding system extends partially into or through the central aperture.