Force-Sensing Spreading Tool for Coating Application Comfort
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Solution Overview
Problem
Existing tools do not effectively measure the force required to spread pastes, leading to user discomfort and potential musculoskeletal disorders due to varying viscosities and densities, affecting the ease of application.
Innovation Solution
An instrument with a plate and gripping means, equipped with force sensors to measure the force applied during spreading, providing data on average, maximum force, and duration, and optionally incorporating additional sensors for inclination and mass, to determine the spreading capacity and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the viscosity of the coating is increased to improve spreading capacity, then the coating becomes easier to spread, but the force required to spread it increases leading to user fatigue and musculoskeletal disorders
Solution Approach 1:
The patent replaces the purely mechanical spreading process with an instrumented system that uses force sensors (electronic/measurement components) to detect and quantify the forces applied during spreading. This substitution allows for objective measurement and analysis of the mechanical interaction between the trowel and coating, enabling optimization of coating properties to reduce required force while maintaining spreadability.
Solution Approach 2:
The force sensors provide real-time feedback data about the forces applied during spreading operations. This feedback mechanism allows users to understand the relationship between coating properties and required spreading force, enabling them to adjust their technique or select appropriate coatings that minimize physical strain while achieving desired spreading results.
2Force
If the viscosity of the coating is decreased to reduce the force required for spreading, then the coating becomes easier to apply with less force, but the coating becomes too runny and difficult to control
Solution Approach 1:
The patent uses force sensors to objectively measure and analyze the forces involved in spreading coatings of different viscosities. This measurement capability allows for precise determination of the optimal viscosity range that balances ease of application with controllability, replacing subjective judgment with quantitative data.
Solution Approach 2:
The patent investigates and optimizes the viscosity parameter of coatings to find the optimal balance between spreadability and controllability. By systematically varying and measuring the effects of different viscosity levels on spreading force and performance, the patent identifies the ideal parameter range that resolves the contradiction between requiring less force and maintaining control.
3Reliability
If the density of the paste is increased to improve coating quality, then the coating provides better coverage and finish, but the paste becomes heavier and requires more force to spread
Solution Approach 1:
The patent employs force sensors to measure and analyze the relationship between paste density and spreading force. This objective measurement system allows for quantification of how density changes affect the mechanical effort required, enabling optimization of paste composition to achieve desired quality while minimizing physical strain.
Solution Approach 2:
The patent systematically studies the effect of density parameter changes on both coating quality and spreading force. By measuring and analyzing this relationship, the patent identifies the optimal density range that provides sufficient coating quality without excessive weight and required spreading force.
4Productivity
If traditional spreading tools are used without measurement capabilities, then the application process is simple and quick, but the comfort and ergonomics of the application process cannot be assessed or optimized
Solution Approach 1:
The patent creates a multi-functional instrument that combines the traditional spreading trowel with integrated force sensing and measurement capabilities. This universal tool serves both the original spreading function and the additional function of measuring and analyzing application forces, enabling comfort assessment without sacrificing application efficiency.
Solution Approach 2:
The force sensors act as an intermediary between the user's physical actions and the measurable data about application comfort. This intermediary component translates mechanical forces into quantifiable information, bridging the gap between subjective comfort perception and objective measurement, while not interfering with the spreading operation.
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
Enables accurate measurement of the spreading force, allowing comparison of coatings and surfaces, optimizing application comfort and reducing user fatigue by alerting when thresholds are exceeded.
Implementation Method 1
the measuring means comprise at least one force sensor for generating data relating to the average force applied on the instrument, the maximum force applied on the instrument and the duration
Data Source
AI summary
An instrument for determining the spreading capacity of a coating or a surface, including a plate on which a gripping system is secured, the tool including a measuring system configured to measure the coating to be spread, wherein the measuring system includes at least one force sensor for generating data relating to the average force applied on the instrument, the maximum force applied on the instrument and the duration, in order to provide a signal representative of the capacity of the coating to be spread or the surface to be spread.