Steering Wheel Placement Member Elastic Deformation Impact
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Solution Overview
Problem
Steering wheels with non-leather decorative members often suffer damage when displaced relative to placement members, leading to potential safety issues during vehicle emergencies.
Innovation Solution
A steering wheel design featuring a resin body, a decorative body, and a placement member between them, where the placement member is moved or deformed by the decorative body to absorb and distribute impact, reducing damage to the decorative body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a placement member is disposed between the resin body and the decorative body to prevent damage, then the decorative body is protected from damage during displacement, but the placement member itself may be damaged or deformed during vehicle emergencies
Solution Approach 1:
The placement member is designed with a pressing portion that can be elastically deformed beforehand to absorb impact energy. This elastic deformation capability allows the placement member to cushion the decorative body from damage while withstanding the impact force during vehicle emergencies through its material elasticity
Solution Approach 2:
The placement member utilizes changes in physical parameters, specifically elastic deformation, to resolve the contradiction. By allowing the pressing portion to deform elastically under impact, the system protects the decorative body while the placement member absorbs the harmful impact force through reversible material deformation
2Strength
If the placement member is made rigid to maintain structural stability, then the placement member can withstand impact forces, but the decorative body may be damaged when displaced relative to the placement member
Solution Approach 1:
The placement member transitions from a purely rigid structure to one that allows elastic deformation. The pressing portion is designed to change its physical state temporarily under impact, deforming elastically to protect the decorative body while maintaining overall structural integrity and strength
Solution Approach 2:
The placement member is pre-designed with elastic deformation capability in the pressing portion, creating a cushioning effect before impact occurs. This allows the system to protect the decorative body from damage while the placement member absorbs impact forces through its elastic properties
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 design effectively suppresses damage to the decorative body by allowing the placement member to move or deform under impact, thereby reducing the risk of injury and maintaining the structural integrity of the steering wheel during collisions.
Implementation Method 1
the placement member is moved by being deformed by the decorative body
Implementation Method 2
the placement member is moved by the decorative body when the decorative body has been relatively displaced. This enables damage to the decorative body by the placement member to be suppressed
Data Source
AI summary
There is provided a steering wheel including (1) a resin body made of resin, (2) a decorative body that is provided separately from the resin body, and (3) a placement member that is disposed between the resin body and the decorative body and that is moved by the decorative body when the decorative body has been relatively displaced.