Flexible Roll Form Concrete Footing System

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Solution Overview

Problem

Conventional concrete forming systems using heavy wooden forms are cumbersome to transport and require extensive labor, as they need to be cut to shape for each application, limiting their reusability and efficiency in forming foundation footings and pavements.

Innovation Solution

A compact, lightweight, and reusable concrete forming system utilizing a flexible, self-supporting roll form with hinged flanges and anchoring holes, allowing for easy deployment, secure anchoring, and reconfiguration to form various shapes, which can be rolled up for transport and reused.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If heavy dimensional lumber is used as a form, then the form has sufficient strength to hold concrete, but it becomes cumbersome to transport and requires extensive labor

Engineering Contradiction:
Improveform strengthVSAvoidease of transport and installation
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The patent employs a flexible form material that can be rolled out and shaped on-site, replacing rigid dimensional lumber. This flexible form maintains sufficient strength to hold concrete pressure while being lightweight and easy to transport in rolled form, eliminating the need for heavy trucks and reducing installation labor significantly.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The form transitions from a static, rigid wooden structure to a dynamic, flexible membrane that can be easily deployed and configured. The flexible form can be rolled out, anchored, and shaped adaptively on-site, transforming the installation process from labor-intensive cutting and assembly to simple deployment and securing.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If dimensional lumber is cut to shape for each job, then the form fits specific project requirements, but it cannot be reused and increases waste

Engineering Contradiction:
Improveform adaptability to project requirementsVSAvoidreusability
Core Design Contradiction:
Adaptability or versatilityVSEase of repair

Solution Approach 1:

The flexible form is designed as a universal, reusable component that can be deployed across multiple projects. Instead of custom-cutting lumber for each job, the same flexible form material can be rolled out and configured for different footing sizes and shapes, serving multiple functions across various construction projects while reducing waste.

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

Solution Approach 2:

The form system separates the permanent concrete structure from the temporary forming material. The flexible form acts as a disposable-like temporary element that can be easily removed and reused, while the concrete footing remains as the permanent structure. This segmentation allows the form to be reset and reused without being consumed.

Inventive Principle:
Principle #1Segmentation

3Weight of moving object

If large trucks or trailers are employed to transport wooden forms, then heavy dimensional lumber can be moved to work sites, but transportation cost and complexity increase

Engineering Contradiction:
Improveform material weightVSAvoidtransport equipment requirements
Core Design Contradiction:
Weight of moving objectVSDevice complexity

Solution Approach 1:

By using a flexible form material instead of rigid lumber, the form can be compressed into a compact rolled state for transport. This eliminates the need for large trucks or trailers, allowing the form to be transported on smaller vehicles or even manually to remote sites, significantly reducing transportation equipment requirements and costs.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The form transitions from a three-dimensional rigid wooden structure to a two-dimensional flexible sheet that can be rolled into a compact cylinder. This dimensional transformation dramatically reduces the transport footprint, allowing the same form material to be transported in a small rolled package rather than requiring large flatbed trucks for bulky lumber.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

4Ease of manufacture

If wooden forms are used, then concrete can be formed, but extensive labor is required for erection and removal

Engineering Contradiction:
Improveform construction capabilityVSAvoidlabor efficiency
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The flexible form is pre-manufactured as a complete, ready-to-deploy material that requires no on-site construction or assembly. Unlike lumber that must be cut, nailed, and assembled into forms, the flexible form arrives as a continuous rolled material that can be unrolled and anchored directly, eliminating extensive erection labor and significantly improving productivity.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9068364B2Method of forming concrete utilizing roll forms
Publication Date: 2015.06.30 TROUDT DAVID F
  • US9068364B2 patent drawing
  • US9068364B2 patent drawing
  • US9068364B2 patent drawing

AI summary

A form for producing a hardened element such as concrete, formed of a flowable material, the form comprising: an elongated, substantially self-supporting portion of flexible material comprising at least one forming surface for abutting the flowable material; first and second flanges hingedly affixed to respective first and second edges longitudinally of the forming surface; and a plurality of corresponding anchoring holes uniformly placed along the first and second flanges.