Vehicle Restraint Testing Apparatus for Re-use Assessment

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Solution Overview

Problem

Current methods for testing vehicle restraint members for re-use are inadequate, relying on subjective visual inspections and lack objective measures to ensure mechanical strength and performance, leading to potential misuse of structurally unsound components, and contributing to waste and environmental issues due to unnecessary replacement.

Innovation Solution

A testing apparatus and method that clamps vehicle restraint members, applies a predetermined deflecting load, and measures deflection to objectively assess suitability for re-use, including thickness measurement to ensure compliance with safety standards, thereby reducing the need for new components and aligning with environmental directives.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If visual inspection is used to assess vehicle restraint members for re-use, then the inspection process is simple and quick, but the assessment is subjective and unreliable, potentially allowing structurally unsound components to be reused

Engineering Contradiction:

Improveinspection process simplicityVSAvoidassessment reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent replaces the subjective visual inspection system with an objective mechanical testing system. A testing apparatus applies controlled deflecting loads to the vehicle restraint member and measures the actual deflection response, substituting human judgment with mechanical measurement to reliably assess structural integrity for re-use eligibility

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The testing apparatus provides quantitative feedback by measuring the deflection of the restraint member under known loads and comparing it against expected performance criteria. This feedback mechanism objectively determines whether the component meets re-use standards, eliminating the subjectivity of visual inspection

Inventive Principle:

Principle #23Feedback

2Reliability

If vehicle restraint members are replaced every 20 years regardless of condition, then safety is maintained, but structurally sound components are wasted and environmental impact increases

Engineering Contradiction:

Improvesafety assuranceVSAvoidcomponent waste

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The patent changes the decision parameter from fixed time-based replacement to condition-based assessment. By measuring deflection characteristics and comparing them against performance thresholds, the system determines re-use eligibility based on actual structural condition rather than arbitrary time intervals, reducing waste of serviceable components

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The testing apparatus performs preliminary assessment of restraint members before final disposal decisions are made. This preliminary mechanical testing identifies which components are structurally sound and suitable for re-use, preventing premature disposal and enabling informed decisions about component lifecycle management

Inventive Principle:

Principle #10Preliminary action

3Reliability

If new vehicle restraint members are produced to replace old ones, then infrastructure safety is maintained, but raw material consumption and carbon emissions increase

Engineering Contradiction:

Improveinfrastructure safetyVSAvoidcarbon dioxide emissions

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent implements a recovery system by testing and certifying used vehicle restraint members for re-use. Components that pass the mechanical deflection testing are recovered and returned to service, preventing them from being discarded as scrap and eliminating the need to produce new steel components, thereby reducing carbon emissions and raw material consumption

Inventive Principle:

Principle #34Discarding and recovering

4Device complexity

If subjective visual inspection is used to identify defects, then the inspection method is simple, but it cannot detect structural defects caused by fatigue and may misidentify visual defects

Engineering Contradiction:

Improveinspection method simplicityVSAvoiddefect detection accuracy

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The patent replaces the simple but imprecise visual inspection system with a mechanical testing system that applies controlled loads and measures deflection responses. This substitution detects actual structural integrity issues regardless of visual appearance, accurately identifying components with fatigue-induced structural defects that visual inspection would miss

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP2791641B1Apparatus for testing vehicle restraint members

Publication Date: 2018.10.31 VERSCO

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AI summary

Apparatus for testing vehicle restraint members comprises: a support (62) for each end of a vehicle restraint member, each of said supports being provided with a clamp (60) to apply a clamping force to the respective end of the vehicle restraint member; means for applying a pre-determined deflecting load (80) to the front face of the member, and intermediate to the ends thereof; and a measuring device (70) for measuring the deflection of the vehicle restraint member, resulting from application of said deflecting load.