T-Shaped Composite Reflector for Flexible Traffic Guidance

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Solution Overview

Problem

Conventional traffic reflectors are inflexible and require specific fastening methods for different materials, leading to high manufacturing costs and complexity, and are prone to breaking upon impact, reducing visibility and safety.

Innovation Solution

A composite reflector with a T-shaped design featuring two reflective layers, reinforcement layers, and double-sided adhesive tapes for easy mounting on various surfaces without additional tools, ensuring flexibility and adaptability to different shapes and materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional reflectors use solid backings and solid reflective shields with specific fastening means, then mounting security is improved, but adaptability to different traffic guidance materials and shapes deteriorates

Engineering Contradiction:
Improvemounting securityVSAvoidadaptability to different materials and shapes
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The reflective shield is designed as a universal component that can be mounted on different traffic guidance materials (steel, concrete, wood) and shapes (flat, curved, sloped) using a single adhesive mounting method, eliminating the need for material-specific fastening adaptations

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The mechanical fastening system (bolts, nails, screws) is replaced with an adhesive mounting system using double-sided adhesive tape, allowing the same mounting method to be used across different materials and shapes without requiring mechanical adaptation

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Manufacturing precision

If conventional reflectors use pre-manufactured steel backings, then manufacturing precision is improved, but ease of manufacture and adaptability at mounting location deteriorates

Engineering Contradiction:
Improvebacking shape precisionVSAvoidadaptability at mounting location
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The backing structure is completely removed from the reflector design, leaving only the reflective shield which is mounted directly onto the traffic guidance object using adhesive, eliminating the need for pre-manufactured backings and their associated adaptation requirements

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The reflective shield is made flexible through material selection and construction, allowing it to conform to different shapes and slopes at the mounting location without requiring pre-manufactured shape adaptations

Inventive Principle:
Principle #35Parameter changes

3Object-affected harmful factors

If conventional reflectors are hidden in guard rail recesses, then safety from traffic impact is improved, but reflective area and visibility deteriorates

Engineering Contradiction:
Improveimpact resistanceVSAvoidreflective area
Core Design Contradiction:
Object-affected harmful factorsVSArea of stationary object

Solution Approach 1:

The reflective shield is constructed as a flexible thin film or panel that can protrude from the traffic guidance object without being rigid, allowing it to maintain visibility while being more resistant to breakage upon impact

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The reflective shield transitions from a static, rigid component to a dynamic, flexible component that can deform upon impact rather than breaking, maintaining its reflective function while reducing harm from traffic contact

Inventive Principle:
Principle #15Dynamics

4Illumination intensity

If conventional reflectors use solid reflective shields, then reflectivity is improved, but ease of operation and safety upon impact deteriorates

Engineering Contradiction:
ImprovereflectivityVSAvoidimpact safety
Core Design Contradiction:
Illumination intensityVSEase of operation

Solution Approach 1:

The reflective shield uses composite material construction combining reflective layers with flexible substrate materials, maintaining high reflectivity while providing flexibility to prevent breakage upon impact

Inventive Principle:
Principle #40Composite materials

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 composite reflector offers increased visibility and safety by being easily customizable, lightweight, and impact-resistant, with reduced installation and replacement time, and adaptable to various surfaces and climates, enhancing road safety without the need for additional fixation tools.

Implementation Method 1

a first double-sided adhesive tape (50) is provided in the protruding section (120)... a second double-sided adhesive tape (60) is provided in the mounting section (110)

Methodology Applied
Scientific EffectAdhesion: Adhesive

Data Source

PatentEP2546417B1Composite reflector
Publication Date: 2016.01.20 ILLINOIS TOOL WORKS INC
  • EP2546417B1 patent drawingFigure 1~2

AI summary

A composite reflector (100) for a traffic guiding means such as a guard rail, a concrete step barrier, a traffic delineator or the like is provided. In order to obtain a reflector for traffic guidance means which provides for easy application and which increases road safety, a first reflective layer (10), a second reflective layer (20), a first reinforcement layer (30), a second reinforcement layer (40), a double-sided adhesive tape (50), and at least one double-sided pressure sensitive adhesive tape (60) are provided, wherein the composite reflector (100) is essentially T-shaped, the crossbeam of the T forming a mounting section (110) and the middle beam of the T forming a protruding section (120).