Thermoplastic Composite Deck Panel with Grid Ribs

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Solution Overview

Problem

Conventional molded deck panels require substantial amounts of material for adequate strength and rigidity, making them heavy and costly, while reducing material content compromises load-carrying capability and service life.

Innovation Solution

A molded deck panel made from thermoplastic material impregnated with fibrous strands, featuring a grid surface with parallel supporting ribs and interlocking tabs, which reduces material usage while maintaining strength and adding ease of installation and cost-effectiveness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If substantial amounts of moldable material are used to provide adequate strength and rigidity, then the load-carrying capability and service life are improved, but the weight and cost increase

Engineering Contradiction:
Improveload-carrying capabilityVSAvoidpanel weight
Core Design Contradiction:
StrengthVSWeight of moving object

Solution Approach 1:

The patent applies composite materials by combining thermoplastic material with fibrous strands (such as glass fibers, cellulose fibers, or other reinforcing fibers) to create a hybrid material structure. This composite approach allows the panel to achieve high strength and rigidity with reduced material quantity, directly resolving the contradiction between load-carrying capability and weight. The fibrous reinforcement provides structural integrity while the thermoplastic matrix binds the fibers together, creating a lightweight yet strong composite panel.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent implements local quality by strategically placing supporting ribs and interlocking features only where structurally necessary within the panel design. The supporting ribs are positioned to provide maximum structural efficiency for load distribution, while interlocking tabs and grooves are located at panel edges for joining purposes. This localized reinforcement approach ensures adequate strength and rigidity without uniformly increasing material usage throughout the entire panel, thus reducing overall weight while maintaining load-carrying capability.

Inventive Principle:
Principle #3Local quality

2Strength

If substantial amounts of moldable material are used to provide adequate strength and rigidity, then the load-carrying capability and service life are improved, but the manufacturing cost increases

Engineering Contradiction:
Improveload-carrying capabilityVSAvoidmanufacturing cost
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The use of composite materials consisting of thermoplastic and fibrous strands provides a cost-effective solution by allowing reduced material consumption while maintaining structural performance. The fibrous reinforcement enables the use of less expensive thermoplastic material in smaller quantities, potentially reducing overall material costs compared to using large amounts of pure high-strength material. Additionally, the composite structure can be manufactured through efficient molding processes that incorporate fiber reinforcement during forming.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent applies segmentation by dividing the panel into functional zones with supporting ribs and interlocking features that are molded as integrated elements. This segmentation allows for optimized material distribution where material is concentrated in high-stress areas (ribs and interlocking regions) while minimal material is used in low-stress areas (panel surfaces and openings). This reduces total material consumption and manufacturing cost while maintaining adequate strength and rigidity.

Inventive Principle:
Principle #1Segmentation

3Strength

If numerous reinforcing ribs are added to provide rigidity and strength in open grid panels, then the structural performance is improved, but the material usage and weight increase

Engineering Contradiction:
ImproverigidityVSAvoidmoldable material
Core Design Contradiction:
StrengthVSQuantity of substance

Solution Approach 1:

The patent applies local quality by strategically positioning supporting ribs only where structurally necessary to provide rigidity and load distribution in open grid panels. The ribs are placed to create efficient load paths from the panel surface to the supporting frame, with spacing and dimensions optimized for minimum material usage. This localized reinforcement approach ensures adequate rigidity and strength while minimizing the quantity of moldable material required compared to uniform rib distribution.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The use of composite materials with fibrous reinforcement enables the supporting ribs to achieve high rigidity and strength with reduced cross-sectional dimensions and material volume. The fibrous strands within the ribs provide exceptional stiffness-to-weight ratio, allowing the ribs to be thinner and use less material while still providing the necessary structural reinforcement for open grid panel configurations.

Inventive Principle:
Principle #40Composite materials

4Weight of moving object

If the amount of moldable material is reduced to decrease weight and cost, then the manufacturing cost and shipping cost are reduced, but the load-carrying capability and service life are compromised

Engineering Contradiction:
Improvepanel weightVSAvoidload-carrying capability
Core Design Contradiction:
Weight of moving objectVSStrength

Solution Approach 1:

The patent directly addresses this contradiction by using composite materials that provide high strength-to-weight ratio. The combination of thermoplastic material with fibrous strands (glass fibers, cellulose fibers, or other reinforcing fibers) creates a lightweight composite that maintains or enhances load-carrying capability despite reduced material quantity. The fibrous reinforcement compensates for the reduced thermoplastic material volume, ensuring adequate structural performance while achieving weight reduction for lower shipping and installation costs.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent applies local quality by concentrating material and structural reinforcement only where needed for load-carrying functions, rather than uniformly distributing material throughout the panel. The supporting ribs, interlocking features, and fiber reinforcement are positioned in high-stress regions to maintain structural integrity, while low-stress areas use minimal material. This optimized material distribution reduces overall panel weight and material cost while preserving load-carrying capability and service life.

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 results in a lighter, stronger, and more cost-efficient deck panel with improved load distribution and interlocking features, enhancing durability and aesthetic appeal while reducing shipping, transportation, and installation costs.

Implementation Method 1

a molded deck panel made from a predetermined moldable thermoplastic material impregnated with a predetermined fibrous stranded material

Methodology Applied
Scientific EffectImpregnation: Absorption (physical)

Data Source

PatentUS7500336B2Molded panel
Publication Date: 2009.03.10 THRUFLOW
  • US7500336B2 patent drawing
  • US7500336B2 patent drawing

AI summary

A deck panel is adapted to be secured on a supporting frame structure to create a deck surface. The deck panel comprises a thermoplastic material impregnated with a fibrous stranded material. The panel includes a top surface and four lateral sides extending downward from the top surface. The top surface is formed as a grid having a plurality of openings. A plurality of supporting ribs extend parallel to each other from one of the four lateral sides to an opposite one of the four lateral sides. The upper surface of each supporting rib is adapted to form longitudinal portions of the grid pattern of the top surface. A plurality of tabs extend outward from the lateral sides that are adapted to interlock with a corresponding plurality of tabs extending from a like deck panel so that a plurality of deck panels may be juxtaposed in abutting relationship.