Shoe Fit Measuring Device Using Replica Foot Sensors
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Solution Overview
Problem
Current shoe fit measurement devices lack a uniform and accurate method to quantify shoe fit on human feet, as they often rely on replica feet without sensors, and existing sensor-enabled devices are limited to traction testing, failing to provide comprehensive fit assessment.
Innovation Solution
A shoe fit measuring device featuring a replica human foot with integrated pressure sensors and distance gauges that measure pressure distribution and space between the foot and shoe, providing calibrated data for precise fit analysis, which can be displayed and stored for comparison to established standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a replica foot without sensors is used, then the device complexity is reduced and ease of manufacture is improved, but measurement precision and reliability of fit assessment deteriorate
Solution Approach 1:
The patent uses a replica foot that copies the anatomical structure of a human foot, including boney landmarks and pressure points. This allows accurate fit measurement without requiring an actual human foot, resolving the contradiction by providing measurement precision through anatomical replication while avoiding the complexity of sensor integration into living tissue.
Solution Approach 2:
The patent replaces complex sensor integration with a simpler mechanical approach using a replica foot with integrated pressure sensors at key anatomical locations. The replica foot structure itself serves as the measurement interface, substituting for more complex sensor systems while maintaining measurement precision.
2Measurement precision
If sensor-enabled devices are used for comprehensive fit assessment, then measurement precision is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent segments the measurement function into discrete sensor locations corresponding to specific anatomical pressure points on the foot. This segmentation allows for targeted measurement at critical fit locations while simplifying the overall manufacturing process, as sensors are placed only where needed rather than across the entire surface.
Solution Approach 2:
The patent applies sensors only at specific local areas corresponding to boney landmarks and pressure points rather than uniformly across the entire foot surface. This local quality approach provides comprehensive fit assessment precision while reducing manufacturing complexity and cost by limiting sensor placement to critical locations only.
3Measurement precision
If multiple sensors and gauges are integrated into the replica foot, then measurement precision and data comprehensiveness are improved, but device complexity and operational difficulty increase
Solution Approach 1:
The replica foot serves multiple functions simultaneously: it provides the anatomical reference structure, houses the sensor array, and acts as the measurement interface. This multi-functionality consolidates what would otherwise be separate components into a single universal device, improving measurement precision while maintaining ease of operation.
Solution Approach 2:
The patent merges the structural replica foot with the sensor system into a single integrated device. The sensors are embedded within or attached to the replica foot structure, combining the mechanical reference with the electronic measurement system. This merging simplifies operation by providing a unified device that requires no separate alignment or setup procedures.
Data Source
AI summary
A shoe fit measuring device, comprising: a replica human foot portion; pressure sensors; and distance gauges. The pressure sensors and distance gauges are configured to determine whether shoes being fit tested are the correct size. The replica human foot and the sensors may be configured to be inserted into the shoes being fit tested so that fit measurements may be taken.