Tie-Down Strap Tension Measurement Using a Pressure Sensor

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Solution Overview

Problem

The tightness of binding belts used during transportation cannot be directly reflected, leading to potential safety hazards as they may become loose and cause goods to scatter.

Innovation Solution

A force measuring device for binding belts that includes a force measuring body with belt mounting grooves and a pressure sensor to detect the tensioning force, ensuring the belt is tightened by comparing the detected pressure with a preset value.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If binding belts are used for binding goods during transportation, then goods can be fixed and transported, but the tightness of the binding belts cannot be directly detected, leading to safety hazards

Engineering Contradiction:

Improvesafety of goods transportationVSAvoiddetection of binding belt tightness

Core Design Contradiction:

ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent introduces a force measuring device as an intermediary between the binding belt and the operator. This device includes a pressure sensor that indirectly measures the tension of the binding belt by detecting the pressure when the belt is pressed against it, converting an otherwise difficult-to-measure tension force into a detectable pressure signal.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the traditional mechanical/experiential method of judging binding belt tightness with an electronic sensing system. The pressure sensor converts mechanical pressure into electrical signals that can be processed and displayed, allowing for objective and accurate measurement of binding belt tension.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Device complexity

If operators judge binding belt tightness based on experience, then no additional detection equipment is needed, but safety hazards arise due to inability to accurately detect tightness

Engineering Contradiction:

Improvesimplicity of binding systemVSAvoidaccuracy of tightness judgment

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent implements a feedback mechanism where the pressure sensor continuously monitors the binding belt tension and provides real-time feedback to the operator through display devices. This allows operators to make informed decisions about whether the binding belt is sufficiently tight, eliminating reliance on subjective experience.

Inventive Principle:

Principle #23Feedback

3Measurement precision

If a force measuring device with pressure sensor is installed on the binding belt, then tensioning force can be detected, but the device structure becomes more complex

Engineering Contradiction:

Improvedetection accuracy of tensioning forceVSAvoidstructure of binding system

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The force measuring device is designed to be multi-functional: it not only measures the tension of the binding belt but also serves as part of the binding structure itself. The device can be integrated with the binding system in a way that combines measurement functionality with structural support, reducing the overall complexity increase.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

Ensures the binding belt is in a tightened state, preventing goods from scattering and enhancing transportation safety by providing visual feedback on belt tension.

Implementation Method 1

a pressure sensor mounted on the force measuring body, the force measuring body is provided with two belt mounting grooves, the pressure sensor is provided between the two belt mounting grooves, the binding belt passes through the two belt mounting grooves, and the binding belt is pressed on the pressure sensor

Methodology Applied

Scientific EffectPressure detection:

Data Source

PatentEP4624886A1Force measurement device for tie-down strap

Publication Date: 2025.10.01 ZHEJIANG TOPSUN LOGISTIC CONTROL CO LTD

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AI summary

A force measuring device for a binding belt (28), aiming to overcome a defect that as a tensioning force of a binding belt (28) cannot be accurately judged, it cannot be ensured that the binding belt is in a tightened state. The device includes a force measuring body (1) and a pressure sensor (2) mounted on the force measuring body (1), the force measuring body (1) is provided with two belt mounting grooves (3), the pressure sensor (2) is provided between the two belt mounting grooves (3), the binding belt (28) passes through the two belt mounting grooves (3), and the binding belt (28) is pressed on the pressure sensor (2) with the two belt mounting grooves (3) as two fulcrums of the binding belt (28). The force measuring device for the binding belt (28) can conveniently detect the tensioning force of the binding belt (28), and after binding is completed, it is ensured that the binding belt (28) is in a tightened state to prevent goods from scattering due to loosening of the binding belt, which is conducive to ensuring safe transportation of the goods.