Reusable Segmented Surface Protector for Automotive Painting Booths

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Solution Overview

Problem

Current protectors used in painting booths are inadequate due to high costs, complexity, and inefficiency in use, requiring frequent replacement and causing productivity losses, as they fail to provide sufficient resistance to high temperatures and environmental conditions.

Innovation Solution

A reusable protector with multiple sheets, each individually separable and secured using an adhesive fixing element, allowing for easy replacement and re-use, with pre-cut areas for quick separation and minimal waste, and made from materials like HDPE for thermal resistance and rice paper adhesive tape for effective adhesion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If commercial protectors consisting of plastic with incorporated masking tape are used, then positioning on the surface is facilitated, but the protector deteriorates or loses adhesive properties after passing through the painting booth, requiring frequent replacement

Engineering Contradiction:
Improvepositioning facilitationVSAvoiduseful life of protector
Core Design Contradiction:
Ease of operationVSDuration of action of stationary object

Solution Approach 1:

The protective covering is divided into multiple separate sheets instead of a single continuous piece. Each sheet can be independently positioned, adjusted, and replaced. This segmentation allows the sheets to be individually optimized for durability and adhesion while maintaining ease of positioning through the masking tape on each sheet.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention changes the material parameters of the protective sheets by using materials with greater resistance to high temperatures and environmental conditions inside the painting booth. The sheets are made from materials that maintain their adhesive properties and structural integrity at temperatures around 80°C and in the presence of paint molecules and volatile organic compounds.

Inventive Principle:
Principle #35Parameter changes

2Duration of action of stationary object

If protectors with greater resistance to high temperatures and environmental conditions are used, then the useful life is extended, but the cost and complexity of the protector increases

Engineering Contradiction:
Improveuseful life of protectorVSAvoidprotector structure
Core Design Contradiction:
Duration of action of stationary objectVSDevice complexity

Solution Approach 1:

The protective system is segmented into multiple simple sheets that can be individually manufactured and replaced. This segmentation reduces the complexity of each individual sheet while extending the overall useful life through cumulative replacement of worn sheets rather than replacing an entire complex protector assembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention uses multiple relatively simple and cost-effective sheets that can be individually replaced when worn. Rather than using a single complex expensive protector, the system uses multiple simpler sheets where only the worn ones need replacement, reducing overall cost and complexity.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Reliability

If chemical products are applied to create a protective film, then surface protection is achieved, but the application and re-rolling process is difficult and time-consuming

Engineering Contradiction:
Improveprotective film formationVSAvoidapplication and re-rolling time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The invention replaces the chemical application and re-rolling process with a mechanical system of pre-formed protective sheets. Instead of applying chemical products that require dissolution and re-rolling, the sheets are mechanically positioned and secured using adhesive masking tape, eliminating the time-consuming chemical application and re-rolling steps.

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

Solution Approach 2:

The protective sheets are pre-formed and pre-equipped with adhesive masking tape before use. This preliminary preparation eliminates the need for on-site chemical application and re-rolling operations, significantly reducing the time required for protection and re-protection of surfaces.

Inventive Principle:
Principle #10Preliminary action

4Ease of operation

If self-adhesive plastic is used for protection, then adhesive masking is achieved, but the adhesive leaves a residue on the surface after re-rolling

Engineering Contradiction:
Improveadhesive maskingVSAvoidadhesive residue
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The invention extracts the adhesive function into a separate masking tape layer that is applied to the edges of the protective sheets rather than incorporating adhesive throughout the entire plastic material. This separation allows the adhesive to be positioned only where needed for securing the sheets, minimizing residue on the protected surface.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The adhesive masking tape is applied locally to the edges and specific areas of the protective sheets rather than uniformly across the entire surface. This localized application ensures adequate masking and adhesion while minimizing the amount of adhesive that could leave residue on the protected surface during removal.

Inventive Principle:
Principle #3Local quality

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 solution significantly reduces installation and maintenance times, minimizes waste, and lowers costs by allowing continuous use within painting booths without full replacement, enhancing productivity and cost-effectiveness.

Implementation Method 1

at least one fixing element that enables the protector to be secured to the surface

Methodology Applied
Scientific EffectAdhesion: Adhesive

Implementation Method 2

made from materials like HDPE for thermal resistance

Methodology Applied
Scientific EffectThermal resistance: Thermal Insulation

Data Source

PatentEP3195939B1Protector for painting or other surface treatments and method for masking a surface using said protector
Publication Date: 2020.06.03 PAPELERA DEL NERVION
  • EP3195939B1 patent drawingFigure 1~2
  • EP3195939B1 patent drawingFigure 3
  • EP3195939B1 patent drawingFigure 4

AI summary

Protector (1) to mask floors, walls or other surfaces, which comprises a protective element (2) and a fixing element (4) to secure the protector (1) to a surface (3) to be masked. The protective element (2) includes a set of sheets (7) connected to the fixing element (4). The sheets (7) are arranged in parallel and are individually separable from the fixing element (4) so that they can be used individually and consecutively. The invention provides a simple and reusable protector for use in painting booths at automotive workshops and for other uses.