Inflatable Paddle Board Bonding Layer for EVA Pad Peeling

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Solution Overview

Problem

Conventional inflatable paddle boards face issues with adhesive failure between the EVA padding layer and the board body due to water immersion and sunlight exposure, leading to bulging and glue peeling, which compromises the durability and user experience.

Innovation Solution

Incorporating a glue attaching layer between the padding layer and the inflatable body to enhance adhesive strength and distribution, using a flexible material like mesh fabric to improve bonding, and employing specific adhesive coatings to ensure a uniform and robust attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the EVA padding layer is directly glued onto the smooth surface of the board body, then the manufacturing process is simple, but the adhesive structure is easily damaged due to water immersion and sunlight exposure, resulting in bulging and glue peeling

Engineering Contradiction:
Improvemanufacturing process simplicityVSAvoidadhesive structure durability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent introduces a glue attaching layer as an intermediary between the EVA padding layer and the board body. This intermediate layer provides a better bonding surface that enhances adhesive grip and prevents direct adhesive failure between the padding and the smooth board surface, thereby resolving the contradiction between manufacturing simplicity and adhesive durability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent creates a composite structure consisting of the board body, glue attaching layer, and EVA padding layer. This multi-layer composite construction combines materials with different properties to achieve both ease of manufacture and improved adhesive reliability, as the glue attaching layer serves as a specialized interface between the other two components.

Inventive Principle:
Principle #40Composite materials

2Reliability

If a glue attaching layer is added between the padding layer and the board body, then the adhesive strength and bond stability are improved, but the device complexity increases

Engineering Contradiction:
Improveadhesive bond strengthVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the adhesive bonding system into distinct functional layers: the board body, the glue attaching layer, and the EVA padding layer. This segmentation allows each layer to perform its specific function optimally, with the glue attaching layer dedicated to providing superior adhesive bonding, thereby improving reliability while keeping the added complexity manageable through clear functional division.

Inventive Principle:
Principle #1Segmentation

3Device complexity

If the EVA padding layer is directly attached to the board body, then the structure is simple, but the padding layer detaches easily along the edges and premature peeling occurs

Engineering Contradiction:
Improvestructural simplicityVSAvoidedge bonding strength
Core Design Contradiction:
Device complexityVSStrength

Solution Approach 1:

The glue attaching layer acts as a mediator that specifically addresses edge detachment issues by providing an extended bonding interface. This intermediate layer ensures that adhesive is properly distributed and bonded along the edges, preventing premature peeling while adding only moderate structural complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 glue attaching layer enhances the bond strength, reducing detachment risks and improving durability, ensuring a more stable and comfortable user experience by preventing premature peeling and wear, even under harsh environmental conditions.

Implementation Method 1

a padding layer is firmly attached to an inflatable body of the inflatable paddle board via a glue attaching layer

Methodology Applied
Scientific EffectAdhesion: Adhesive

Data Source

PatentUS12509190B1Inflatable paddle board and manufacturing method thereof
Publication Date: 2025.12.30 HU CHENGJI
  • US12509190B1 patent drawing
  • US12509190B1 patent drawing
  • US12509190B1 patent drawing

AI summary

An inflatable paddle board includes an inflatable body, a glue attaching layer, and a padding layer, the glue attaching layer is arranged between a top surface of the inflatable body and the padding layer, so as to reduce the occurrence of bulging and glue peeling, thereby improving the service life of the inflatable paddle board.