Wheel Mounting Structure With Sub-Engagement Against Deflection

Solution Overview

Problem

Existing vehicle wheel structures with wheel mounting members experience deflection deformation due to reduced rigidity in certain regions, leading to abnormal sounds and potential detachment under external forces like airflow and vibration.

Innovation Solution

The vehicle wheel structure incorporates a wheel mounting member with a main engagement section and a sub-engagement section in low-rigidity regions, where the sub-engagement section engages with an engageable target section to enhance rigidity and prevent deflection deformation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the wheel mounting member is fixed to the wheel by only the engagement between the engagement target section and the engagement section, then the structure is simple, but the rigidity decreases in certain regions causing deflection deformation

Engineering Contradiction:

Improveengagement structureVSAvoidrigidity

Core Design Contradiction:

Device complexityVSStrength

Solution Approach 1:

The engagement structure is divided into two independent sections: a main engagement section for primary fixation and a sub-engagement section for additional support in low-rigidity regions. This segmentation allows each section to perform its specific function without interfering with the other, thereby increasing overall rigidity while maintaining structural simplicity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The sub-engagement section is specifically positioned in low-rigidity regions where deflection deformation is most likely to occur. By providing localized reinforcement only where needed, the design increases rigidity in critical areas without adding unnecessary complexity to the entire structure.

Inventive Principle:

Principle #3Local quality

2Ease of manufacture

If the wheel mounting member is fixed by only the engagement between the engagement target section and the engagement section, then the manufacturing process is simple, but deflection deformation occurs under external forces like airflow and vibration

Engineering Contradiction:

Improvemanufacturing processVSAvoidstability under external forces

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The engagement structure is divided into two independent sections: a main engagement section for primary fixation and a sub-engagement section for additional support in low-rigidity regions. This segmentation allows each section to perform its specific function without interfering with the other, thereby increasing overall rigidity while maintaining structural simplicity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The sub-engagement section is specifically positioned in low-rigidity regions where deflection deformation is most likely to occur. By providing localized reinforcement only where needed, the design increases rigidity in critical areas without adding unnecessary complexity to the entire structure.

Inventive Principle:

Principle #3Local quality

3Device complexity

If the wheel mounting member is fixed by only the engagement between the engagement target section and the engagement section, then the structure remains simple, but abnormal sounds are generated due to repeated abutment from deflection deformation

Engineering Contradiction:

Improveengagement structureVSAvoidabnormal sound

Core Design Contradiction:

Device complexityVSObject-generated harmful factors

Solution Approach 1:

The engagement structure is divided into two independent sections: a main engagement section for primary fixation and a sub-engagement section for additional support in low-rigidity regions. This segmentation allows each section to perform its specific function without interfering with the other, thereby increasing overall rigidity while maintaining structural simplicity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The sub-engagement section is specifically positioned in low-rigidity regions where deflection deformation is most likely to occur. By providing localized reinforcement only where needed, the design increases rigidity in critical areas without adding unnecessary complexity to the entire structure.

Inventive Principle:

Principle #3Local quality

Data Source

PatentEP4606596A1Vehicle wheel structure

Publication Date: 2025.08.27 TOYOTA JIDOSHA KK

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AI summary

A vehicle wheel structure (10) includes: a wheel (11) configured to support a tire and be assembled to a vehicle; and a wheel mounting member (13) that is mounted on the wheel (11). The wheel mounting member (13) includes a body section (131), a main engagement section (134) that is provided to the body section (131) and engages with an engagement target section (118) of the wheel (11), and a sub-engagement section (136) that is provided in a low-rigidity region (R) in which the rigidity relatively decreases in the body section (131) in a state in which the body section (131) is fixed to the wheel (11) by the main engagement section (134), the sub-engagement section (136) engaging with an engageable target section (119) of the wheel (11), the engageable target section (119) being different from the engagement target section (118).