Sole Measuring Device Using Slow Recovery Memory Foam
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Solution Overview
Problem
Most people lack the professional knowledge to accurately measure their own foot length, width, and arch type, leading to discomfort and potential injuries due to improper shoe and insole fitting, as they can only choose sizes by physical fitting in stores without precise data.
Innovation Solution
A sole measuring device comprising a slow recovery memory unit, alignment unit, and scale unit, equipped with a sensing unit, processing unit, and pressure sensing unit, which detects foot prints and provides precise measurements of foot length, width, and arch information, allowing for accurate data collection and customization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional physical fitting method is used in shoe stores, then shoe size selection is simple and accessible, but measurement precision is insufficient and professional knowledge is required
Solution Approach 1:
The patent uses a slow recovery memory unit to create a physical copy (footprint) of the user's foot. This copy captures the exact shape, length, width, and arch characteristics of the foot, enabling precise measurement without requiring professional operators. The footprint serves as a permanent record that can be analyzed to determine accurate shoe size recommendations.
Solution Approach 2:
The patent replaces traditional mechanical measurement methods (rulers, tape measures requiring manual operation) with a passive slow recovery memory foam system. The user simply steps on the foam, and the material automatically deforms to capture the footprint, eliminating the need for complex mechanical measurement devices and professional operators.
2Measurement precision
If professional measurement is performed by staff, then measurement accuracy improves, but operation complexity and time consumption increase
Solution Approach 1:
The patent enables self-service measurement by designing a system where users can independently complete the measurement process. Users simply step on the slow recovery memory unit and wait for the footprint to form, then compare their footprint against the provided guide to determine their shoe size, all without requiring professional staff assistance.
Solution Approach 2:
The patent includes a pre-designed guide with scale marks and alignment indicators that are prepared in advance. This guide allows users to independently perform the measurement by simply comparing their footprint against the pre-prepared reference markings, eliminating the need for staff to perform complex measurement procedures during the customer interaction.
3Measurement precision
If multiple foot parameters are measured, then customization accuracy improves, but measurement time and device complexity increase
Solution Approach 1:
The patent combines multiple measurement functions into a single footprint capture process. By stepping on the slow recovery memory unit once, the system simultaneously captures foot length, width, arch height, and other critical parameters in a single action, rather than requiring separate measurements for each parameter.
Solution Approach 2:
The patent pre-preares comprehensive measurement guides that include all necessary reference markings for multiple parameters (length, width, arch type) in advance. Users can determine all their foot parameters by comparing their single footprint against this comprehensive guide, eliminating the need for multiple separate measurement steps.
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 precise measurement of foot dimensions and arch type, improving comfort and reducing the risk of injuries by providing accurate data for customized shoe and insole fitting, allowing users to choose sizes based on their specific foot parameters.
Implementation Method 1
a slow recovery memory unit configured to receive a foot sole and to create a foot print
Implementation Method 2
the sensing unit is an optical sensor
Implementation Method 3
the sensing unit is a distance sensor
Implementation Method 4
the sensing unit is a temperature sensor
Implementation Method 5
the pressure sensing unit detects that the foot sole has moved away from the slow recovery memory unit
Data Source
AI summary
A sole measuring device includes a slow recovery memory unit configured to receive a foot sole and to create a foot print, an alignment unit connected to the slow recovery memory unit used for indicating an alignment position of the foot, and a scale unit connected to the slow recovery memory unit used for providing a scale mark. The present invention is able to measure not only foot length but also foot width precisely, as well as foot arch can be inferred properly.