Payload Strap Fastener With Elastic Cinching and Flap Control

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Solution Overview

Problem

Existing strap systems for securing payloads often have excess length that flaps around, causing unnecessary exposure to environmental elements and potential tangling issues.

Innovation Solution

A strap system comprising a first fastener with a connecting crosspiece, reversing crosspiece, and hanger, along with an elastic and inelastic strap section, where the elastic section is connected to the fastener and the inelastic section is secured using a hook and loop fastener system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a strap system uses excess length to accommodate different payload sizes, then adaptability is improved, but the excess length causes flapping and tangling issues

Engineering Contradiction:

ImproveadaptabilityVSAvoidflapping and tangling

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The strap is divided into two distinct sections: an elastic strap section and an inelastic strap section. The elastic section accommodates different payload sizes through stretching, while the inelastic section provides a fixed, controlled length that prevents flapping and tangling. This segmentation allows each portion to fulfill its specific function without interfering with the other.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different portions of the strap are given different mechanical properties. The elastic strap section near the fastener is designed to stretch and conform to various payload dimensions, while the inelastic strap section is designed to remain taut and prevent excessive movement. This local differentiation of material properties resolves the contradiction between adaptability and stability.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If the strap is made entirely elastic to accommodate varying payload sizes, then adaptability is improved, but control over excess length is lost

Engineering Contradiction:

ImproveadaptabilityVSAvoidcontrol over excess length

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The strap is divided into an elastic portion and an inelastic portion. The elastic portion provides adaptability by stretching to fit different payload sizes, while the inelastic portion provides operational control by maintaining a fixed length that can be easily managed and secured without excessive movement or tangling.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The strap transitions from an elastic region near the fastener to an inelastic region extending outward. This local quality differentiation ensures that the area needing adaptability (near the payload) is elastic, while the area needing control (extending outward) is inelastic, allowing both requirements to be satisfied simultaneously.

Inventive Principle:

Principle #3Local quality

3Ease of operation

If the strap is made entirely inelastic to prevent flapping, then control over excess length is improved, but adaptability to different payload sizes is reduced

Engineering Contradiction:

Improvecontrol over excess lengthVSAvoidadaptability

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The strap is segmented into an inelastic section for control and an elastic section for adaptability. The inelastic section prevents flapping and provides operational control, while the elastic section near the fastener allows the strap to stretch and accommodate varying payload sizes, thus resolving the contradiction between control and adaptability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The strap features an inelastic portion for stability and control, transitioning to an elastic portion near the fastener for adaptability. This local quality differentiation allows the strap to maintain control over excess length while simultaneously adapting to different payload dimensions through the elastic region.

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 strap system effectively secures payloads by cinching the elastic strap section around the payload and wrapping the inelastic section around it, preventing excess length from flapping and reducing tangling.

Implementation Method 1

an elastic strap section connected to the connecting crosspiece of the first fastener

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

a hook and loop fastener system. That hook and loop fastener system may include loops configured along both sides of the inelastic strap section and hooks configured along both sides of the inelastic strap section

Methodology Applied

Scientific EffectMechanical Fastening: Mechanical Fastener

Data Source

PatentUS12344449B2Strap system for securing a payload

Publication Date: 2025.07.01 FOREMAN STEPHEN MITCHELL

AI summary

The present invention discloses a strap system for securing a payload. The strap system includes a first fastener having a connecting crosspiece, a reversing crosspiece, and a hanger capable of attaching to the payload. The strap system also includes a strap attached to the connecting crosspiece of the first fastener and capable of passing around the payload, passing between the connecting crosspiece and the reversing crosspiece, and tightening the strap around the payload.