Vehicle Bodywork Element Recoil Limiting Mounts

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Solution Overview

Problem

Conventional mounting points for vehicle bodywork elements, such as the front wing, fail to effectively contain recoil during repairability impact tests, leading to deformation and potential damage to adjacent vehicle parts, which can result in increased insurance premiums.

Innovation Solution

The bodywork element is equipped with additional attachment points and stiffening structures at strategic locations, including a reinforced front attachment point and additional fastening means on the upper longitudinal edge or remote from the impact zone, capable of withstanding significant forces, to limit recoil during impacts oriented parallel to the vehicle's longitudinal axis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If conventional mounting points are used to fix the bodywork element, then the device complexity is reduced, but the bodywork element undergoes significant recoil and deforms adjacent parts during impact

Engineering Contradiction:

Improvemounting structureVSAvoidrecoil and deformation

Core Design Contradiction:

Device complexityVSObject-affected harmful factors

Solution Approach 1:

The mounting structure is divided into multiple mounting points distributed at different locations on the bodywork element. This segmentation allows each mounting point to independently resist recoil forces in different directions, collectively containing the element's movement during impact without requiring an overly complex single-structure solution

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Mounting points are positioned in three-dimensional space at various heights and locations on the bodywork element. This spatial distribution creates a multi-dimensional restraint system that effectively limits recoil movement in multiple directions simultaneously, preventing the element from rolling back or deforming adjacent parts

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Object-affected harmful factors

If additional attachment points and stiffening structures are added to limit recoil, then the harmful effects of recoil and deformation are reduced, but the device complexity increases

Engineering Contradiction:

Improverecoil and deformationVSAvoidmounting structure

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

Stiffening structures are applied locally at specific mounting points and regions of the bodywork element where recoil forces are most intense. This localized reinforcement provides maximum resistance to deformation where needed most, while avoiding unnecessary complexity in regions that require less support

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The mounting points are designed to combine multiple functions: they serve as attachment points for securing the bodywork element while simultaneously acting as reinforcement structures that resist recoil forces. This merging of functions reduces the need for separate stiffening components, thereby limiting complexity increase

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP2315694B1Bodywork element with means of limiting the intrusion of this element in the event of an impact therewith

Publication Date: 2012.09.05 PEUGEOT CITROEN AUTOMOBILES SA

Figure 1
Figure 2~3

AI summary

The invention relates to a bodywork element with means of limiting the intrusion of this element upon an impact therewith. This element is characterized in that it comprises means (6, 6a) of limiting the intrusion of this element (1) when this element is subjected to an impact the force of which is directed substantially parallel to the longitudinal axis of the vehicle. Application to the field of motor vehicles.